CN110723681A - Lifting device and well repairing platform - Google Patents
Lifting device and well repairing platform Download PDFInfo
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- CN110723681A CN110723681A CN201911200853.9A CN201911200853A CN110723681A CN 110723681 A CN110723681 A CN 110723681A CN 201911200853 A CN201911200853 A CN 201911200853A CN 110723681 A CN110723681 A CN 110723681A
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- bevel gear
- scissor
- lifting device
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- arm
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- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 5
- 230000003028 elevating effect Effects 0.000 description 12
- 230000033001 locomotion Effects 0.000 description 10
- 239000003921 oil Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/065—Scissor linkages, i.e. X-configuration
- B66F7/0666—Multiple scissor linkages vertically arranged
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/06—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement
- B66F7/0608—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported by levers for vertical movement driven by screw or spindle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The application provides a lifting device and a workover platform, and relates to the field of workover auxiliary equipment; the lifting device comprises a driving device, a base, a top seat and a scissor arm, wherein the upper end and the lower end of each of two arms of the scissor arm are respectively provided with an installation position, a first moving assembly is arranged in the base and comprises two first moving members which are oppositely arranged, the two first moving members are respectively and correspondingly connected with the two installation positions at the lower end of the scissor arm, a second moving assembly is arranged in the top seat and comprises two second moving members which are oppositely arranged, the two second moving members are respectively and correspondingly connected with the two installation positions at the upper end of the scissor arm, the driving device is connected with the two first moving members through a transmission mechanism, and the top seat is driven by the scissor arm to realize stable lifting up and down; the lifting device is applied to the workover platform, and the problem of unstable support of the workover platform in the lifting process is solved to a certain extent.
Description
Technical Field
The application relates to the field of well repair auxiliary equipment, in particular to a lifting device and a well repair platform.
Background
After the oil is exploited, in order to ensure that the oil well can be used smoothly, a platform for maintaining and maintaining the oil well, namely a well repairing platform, is often adopted; as oil production continues to evolve, more and more workover platforms are used.
Among the prior art, workover platform that uses under the condition of oil field environment often adopts and cuts fork arm-type structure elevating gear, though can effectively solve inside and outside shaped steel cup joint the problem that the regulation brought wastes time and energy and finely tune inconveniently, and hydraulic cylinder supports the height problem that does not adapt to the workstation, but cut fork arm-type structure elevating gear's unilateral gyro wheel roll, the articulated structural style of opposite side leads to easily cutting fork arm-type structure elevating gear to support unstably, and then the focus of object on the face of platform probably takes place the condition of focus skew at unilateral gyro wheel roll in-process, thereby lead to the unstable problem of object on the face of platform at the lift in-process, safety risk has been brought.
Disclosure of Invention
The application provides a lifting device and well workover platform adopts drive arrangement to pass through two first moving members of drive mechanism drive and is motion or reverse motion in opposite directions, drives simultaneously and cuts the fork arm and open or closed, makes the mode that the footstock rises or descends, has solved the unstable problem of support that well workover platform appears at the lift in-process to a certain extent.
The application provides a lifting device, which comprises a driving device, a base, a scissor arm and a top seat, wherein a first moving assembly is arranged in the base, a second moving assembly is arranged in the top seat, and the upper end and the lower end of each of two arms of the scissor arm are respectively provided with an installation position;
the first moving assembly comprises two first moving parts which are oppositely arranged, and the two first moving parts are respectively and correspondingly connected with the two mounting positions at the lower end of the scissor fork arm; the second moving assembly comprises two second moving parts which are oppositely arranged, and the two second moving parts are respectively and correspondingly connected with the two mounting positions at the upper end of the scissor arm;
the driving device is connected with the two first moving parts through a transmission mechanism, drives the two first moving parts to move oppositely or reversely, and simultaneously drives the scissor fork arms to be opened or closed, so that the top seat rises or falls.
Preferably, the transmission mechanism comprises a first bevel gear and a second bevel gear which are oppositely arranged, and a third bevel gear which is respectively meshed with the first bevel gear and the second bevel gear, and the third bevel gear is connected with an output shaft of the driving device;
and the rotating shafts of the first bevel gear and the second bevel gear are respectively connected with a screw rod.
Preferably, the transmission mechanism comprises a wheel disc, and a first straight gear and a second straight gear which are oppositely arranged, wherein teeth are arranged on the surface of one side of the wheel disc, the first straight gear and the second straight gear are perpendicular to the wheel disc and are respectively meshed with the teeth of the wheel disc, and a rotating shaft of the wheel disc is connected with an output shaft of the driving device;
and the rotating shafts of the first straight gear and the second straight gear are respectively connected with a screw rod.
Preferably, the first moving part is a roller nut seat or a sliding block with a threaded hole in the middle; the roller nut seat or the sliding block is in threaded connection with the screw rod, so that the driving device can drive the two first moving parts to move oppositely or reversely.
Preferably, the second moving member is a roller seat or a sliding block, the roller seat is correspondingly connected with the two mounting positions at the upper end of the scissor arm, or the sliding block is correspondingly connected with the two mounting positions at the upper end of the scissor arm.
Preferably, guide rails are arranged on two inner side walls of the base, and the first moving member is arranged on the guide rails and can move along the guide rails; and/or, be equipped with the guide rail on two inside walls of footstock, the second moving member sets up on the guide rail, and can follow the guide rail removes.
Preferably, the scissors further comprise a guide rod, one end of the guide rod is connected with the base, and the other end of the guide rod extends upwards and passes through each intersection point of the scissors arms, so that the scissors arms can be opened or closed along the guide rod.
Preferably, a guide sleeve is arranged at each intersection of the scissor arms, the guide sleeve is sleeved on the guide rod, and the outer wall of the guide sleeve is connected with the scissor arms.
Preferably, the scissors further comprise two guide rods, and symmetrical long holes are respectively formed in the arm bodies on the two sides of the scissors arm;
one end of each guide rod is connected with the base, and the other end of each guide rod extends upwards and penetrates through the strip holes in the arm bodies on the two sides of the scissor arm respectively, so that the scissor arm can be opened or closed along the guide rods.
The application still provides a well workover platform, set up the landing slab, guardrail and at least two of through-hole as above including the centre elevating gear, the through-hole in the middle of the landing slab is used for passing the well head, the both ends of landing slab are erect elevating gear is last, the guardrail sets up the periphery of landing slab.
The lifting device comprises a driving device, a base, a top seat and a scissor arm, wherein the upper end and the lower end of two arms of the scissor arm are respectively provided with an installation position, a first moving assembly is arranged in the base and comprises two first moving members which are oppositely arranged, the two first moving members are respectively and correspondingly connected with the two installation positions at the lower end of the scissor arm, a second moving assembly is arranged in the top seat and comprises two second moving members which are oppositely arranged, the two second moving members are respectively and correspondingly connected with the two installation positions at the upper end of the scissor arm, and the driving device is connected with the two first moving members through a transmission mechanism; the driving device is started, power is transmitted to the transmission mechanism, the transmission mechanism transmits the power to the two first moving parts, the two first moving parts are driven to move oppositely or reversely, the scissor arms are driven to be opened or closed simultaneously, the top seat rises when the scissor arms are opened, and the top seat descends when the scissor arms are closed, so that the top seat is driven by the scissor arms to stably lift up and down; the lifting device is applied to the workover platform, and the problem of unstable support of the workover platform in the lifting process is solved to a certain extent.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a lifting device provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a base provided in an embodiment of the present application;
FIG. 3 illustrates a schematic structural diagram of a roller nut seat provided by an embodiment of the present application;
fig. 4 shows a schematic structural diagram of a well workover platform provided in an embodiment of the present application.
Reference numerals: 1-a lifting device; 10-a hydraulic motor; 11-a base; 111-a roller nut seat; 112-a guide rail; 12-scissor arms; 13-a top seat; 141-a first bevel gear; 142-a second bevel gear; 143-a third bevel gear; 144-a screw rod; 15-a guide bar; 16-a guide sleeve; 2-a platform plate; and 3, protecting the fence.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the prior art, the lifting device of the operation platform used in oil fields and other industries mainly has the following structural forms: the first type is to cup joint through inside and outside shaped steel, the fixed elevating gear who forms of bolt, the second type is the elevating gear who forms through the hydro-cylinder support of platform itself, and the third type is the elevating gear who forms through cutting fork arm type structure. However, the first lifting device is sleeved by the inner and outer profile steels, so that the structure is simple, the adjustment is time-consuming and labor-consuming, and the fine adjustment is inconvenient; the second lifting device is supported by a hydraulic oil cylinder, although the adjustment is simple, the stroke of the oil cylinder is limited, if the height requirement of the working platform is high, the oil cylinder support cannot adapt to the working condition, and the cost of the long-stroke hydraulic oil cylinder is high; the third lifting device adopts a scissor-fork-arm type structure to lift, although the defects of the two structural forms can be effectively overcome, a single-side roller rolls, the other side hinged structural form easily causes the scissor-fork-arm type structure lifting device to be unstable in supporting, and then the gravity center of an object on the platform surface possibly generates gravity center offset in the rolling process of the single-side roller, so that the problem that the object on the platform surface is unstable in the lifting process is caused, and safety risks are brought.
Based on this, this application embodiment provides a elevating gear and well workover platform, is applied to in the oil field environment, but not only this limit.
As shown in fig. 1 to 3, an embodiment of the present application provides a lifting device, including a driving device, a base 11, a scissor arm 12, and a top seat 13, where a first moving assembly is disposed in the base 11, the first moving assembly can move in the base 11, and a second moving assembly is disposed in the top seat 13, and similarly, the second moving assembly can move in the top seat 13, and two mounting positions are respectively disposed at upper and lower ends of two arms of the scissor arm 12; the first moving assembly comprises two first moving parts which are oppositely arranged, and the two first moving parts are respectively and correspondingly connected with two mounting positions at the lower end of the scissor arm 12; the second moving assembly comprises two second moving parts which are oppositely arranged, and the two second moving parts are respectively and correspondingly connected with two mounting positions at the upper end of the scissor arm 12; further, the upper and lower ends of the scissors arm 12 can move simultaneously with the first moving member and the second moving member.
The driving device is connected with the two first moving parts through the transmission mechanism, drives the two first moving parts to move oppositely or reversely, and simultaneously drives the scissor arms 12 to open or close so as to enable the top base 13 to ascend or descend; when two first moving members are the opposite movement, the scissors arm 12 is opened, and the footstock 13 rises, and when two first moving members are the opposite movement, the scissors arm 12 is closed, and the footstock 13 descends to make the footstock 13 realize steadily going up and down about the drive of scissors arm 12. Therefore, the scissor arms 12 at each end can move oppositely or reversely at the same time, and the problem of unstable support caused by rolling of the rollers at one side of the scissor arms 12 is solved.
It should be noted that, the scissor arms 12 are opened or closed, and the top base 13 can be lifted or lowered, so that the height of the lifting device 1 is adjusted, and the problem that the telescopic legs in the prior art cannot meet the requirement of the platform height is solved.
The transmission mechanism comprises a plurality of components, and two components are listed in the embodiment of the application;
as shown in fig. 2, the first transmission mechanism includes a first bevel gear 141 and a second bevel gear 142 which are oppositely disposed, and a third bevel gear 143 which is engaged with the first bevel gear 141 and the second bevel gear 142, respectively, and the third bevel gear 143 is connected to an output shaft of the driving device, wherein a screw rod 144 is connected to a rotating shaft of each of the first bevel gear 141 and the second bevel gear 142.
The driving device can be any one of a hydraulic motor 10, an electric motor and an air motor, and the hydraulic motor 10 is taken as an example in the embodiment of the application.
The third bevel gear 143 is vertically disposed to the first bevel gear 141 and the second bevel gear 142, respectively, the third bevel gear 143 is engaged with the first bevel gear 141 and the second bevel gear 142, respectively, when the hydraulic motor 10 drives the third bevel gear 143 to rotate clockwise (clockwise here is viewed from the hydraulic motor 10 side), when viewed from the direction of the respective tooth faces of the first bevel gear 141 and the second bevel gear 142 toward the respective screw rods on the corresponding sides, the first bevel gear 141 and the second bevel gear 142 both rotate clockwise, at this time, the respective screw rods 144 on the first bevel gear 141 and the second bevel gear 142 rotate in opposite directions, and since the screw rods 144 are connected to the first moving member, the rotation of the screw rods 144 on both sides in opposite directions is converted into the opposite movement of the two first moving members, so that the scissor arm 12 is opened, and the top base 13 is raised; similarly, when the hydraulic motor 10 drives the third bevel gear 143 to rotate counterclockwise (where counterclockwise is viewed from the side of the hydraulic motor 10), the first bevel gear 141 and the second bevel gear 142 both rotate counterclockwise as viewed from the direction of the respective tooth faces of the first bevel gear 141 and the second bevel gear 142 toward the respective corresponding screw rods, at this time, the respective screw rods 144 of the first bevel gear 141 and the second bevel gear 142 rotate in opposite directions, and since the screw rods 144 are connected to the first moving member, the rotation of the screw rods 144 on both sides in opposite directions is simultaneously converted into the opposite movement of the two first moving members, so that the scissor arm 12 is closed, and the top base 13 is lowered.
The second transmission mechanism (not shown in the figure) comprises a wheel disc, a first straight gear and a second straight gear which are oppositely arranged, wherein teeth are arranged on the surface of one side of the wheel disc, the first straight gear and the second straight gear are perpendicular to the wheel disc and are respectively meshed with the teeth of the wheel disc, and a rotating shaft of the wheel disc is connected with an output shaft of the driving device; wherein, the rotating shafts of the first straight gear and the second straight gear are respectively connected with a screw rod.
It should be noted that the teeth on the wheel disc are arranged on the wheel disc surface, the first spur gear and the second spur gear are respectively perpendicular to the wheel disc, the working principle of the second transmission mechanism is the same as that of the first transmission mechanism, the working process of the second transmission mechanism is the same as that of the first transmission mechanism, the realized technical effects are also the same, and the specific working process is not described.
Specifically, the first moving part is a roller nut seat 111 or a sliding block with a threaded hole in the middle; the roller nut seat 111 or the sliding block is screwed on the screw rod 144, so that the driving device can drive the two first moving parts to move oppositely or reversely.
As shown in fig. 3, in the embodiment of the present application, the first moving member is taken as an example of a roller nut seat 111, two ends of the roller nut seat 111 are provided with rollers, the rollers can move along an inner bottom of the base 11, a nut hole is formed in a middle area of the roller nut seat 111, and the nut hole is matched with the lead screw 144, so that a good self-locking effect can be achieved, and the problem of safe self-locking of the scissor arm 12 is solved; when the screw rod 144 rotates, the roller nut seat 111 is driven to move, and the resistance force applied to the roller when the roller moves on the base 11 is small.
Further, guide rails 112 are arranged on two inner side walls of the base 11, and the first moving member is arranged on the guide rails 112 and can move along the guide rails 112; that is, the rollers at both ends of the roller nut seat 111 are disposed in the guide rail 112, the roller nut seat 111 can move along the guide rail 112, and the disposition of the guide rail 112 not only defines the moving direction and path of the rollers, but also reduces the resistance to the movement of the roller nut seat 111.
When the first moving member is a sliding block with a threaded hole in the middle, the sliding of the sliding block is used to replace the rolling of the roller nut seat 111, but the working principle of the sliding block is the same as that of the roller nut seat 111, and the description is omitted here.
Similarly, the second moving member is a roller seat or a sliding block, the roller seat is correspondingly connected with two mounting positions at the upper end of the scissor arm 12, or the sliding block is correspondingly connected with two mounting positions at the upper end of the scissor arm 12.
It should be noted that the arrangement of the guide rail 112 includes three cases: the first kind is equipped with guide rail 112 on two inside walls of base 11, and the second kind is equipped with guide rail 112 on two inside walls of footstock 13, and the third kind is all equipped with guide rail 112 on two inside walls of base 11 and footstock 13, and the shape and the size etc. of guide rail 112 are confirmed by the concrete structure of first moving member or second moving member.
Besides, the lifting device 1 further includes guide rods, the number of the guide rods is not particularly limited, and the embodiment of the present application specifically describes two cases that the lifting device 1 includes one guide rod or the lifting device 1 includes two guide rods.
As shown in fig. 1, when the lifting device 1 includes one guide bar 15, one end of the guide bar 15 is connected to the base 11 and the other end extends upward and passes through each intersection of the scissor arms 12, so that the scissor arms 12 can be opened or closed along the guide bar 15. The guide bar 15 mainly functions to provide a moving path for the opening or closing of the scissor arm 12, i.e., a guiding function, so that the scissor arm 12 can be stably opened or closed along the guide bar 15.
And a guide sleeve 16 is arranged at each intersection of the scissor arm 12, the guide sleeve 16 is sleeved on the guide rod 15, and the outer wall of the guide sleeve 16 is connected with the scissor arm 12. The guide sleeve 16 can move up and down along the guide rod 15, and the outer wall of the guide sleeve 16 is fixedly connected with the scissor arm 12 through a nut or other connection modes; when the scissor arms 12 are opened or closed, the guide sleeve 16 moves the scissor arms 12 on the guide rod 15.
When the lifting device 1 comprises two guide rods (not shown in the figure), the arm bodies on the two sides of the scissor arm are respectively provided with symmetrical long holes; the one end of two guide bars all is connected with the base, and the other end all upwards extends and passes the rectangular hole on the arm body of cutting fork arm both sides respectively for cut the fork arm and can open or close along the guide bar.
When the scissor fork arm is opened or closed, the positions of the two guide rods are unchanged, the scissor fork arm can move up and down along the two guide rods due to the long holes formed in the arm body of the scissor fork arm, although the distance for the scissor fork arm to move up and down is limited by the length of the long holes, the length of the long holes can meet the moving range of the scissor fork arm when the scissor fork arm is designed.
The embodiment of the application provides a lifting device, which comprises a hydraulic motor 10, a base 11, a scissor arm 12 and a top seat 13, wherein two roller nut seats 111 which are oppositely arranged are arranged in the base 11, the roller nut seats 111 can move in the base 11, the top seat 13 is also internally provided with two roller nut seats 111 which are oppositely arranged, the roller nut seats 111 can move in the top seat 13, the upper end and the lower end of two arms of the scissor arm 12 are respectively provided with a mounting position, the two roller nut seats 111 in the base 11 are respectively and correspondingly connected with the two mounting positions at the lower end of the scissor arm 12, and the two roller nut seats 111 in the top seat 13 are respectively and correspondingly connected with the two mounting positions at the upper end of the scissor arm 12; further, the upper and lower ends of the scissor arm 12 can move simultaneously with the two roller nut seats 111 in the base 11. The hydraulic motor 10 is connected with two roller nut seats 111 in the base 11 through a transmission mechanism, wherein the transmission mechanism comprises a first bevel gear 141 and a second bevel gear 142 which are oppositely arranged, and a third bevel gear 143 which is respectively engaged with the first bevel gear 141 and the second bevel gear 142, the third bevel gear 143 is connected with an output shaft of the hydraulic motor 10, a screw rod 144 is respectively connected on a rotating shaft of the first bevel gear 141 and a rotating shaft of the second bevel gear 142, the hydraulic motor 10 drives the third bevel gear 143 to rotate, the third bevel gear 143 simultaneously transmits force to the first bevel gear 141 and the second bevel gear 142, the first bevel gear 141 and the second bevel gear 142 convert the rotating motion into linear motion of the screw rod 144, the screw rod 144 drives the two roller nut seats 111 to simultaneously move towards each other or move oppositely, so as to drive the scissor arm 12 to open or close, a guide rod 15 is further arranged between the base 11 and the top seat 13, when the scissor arm 12 is opened or closed along the guide bar 15, smooth ascending or descending of the top base 13 can be achieved.
When the lifting device 1 works, the hydraulic motor 10 is driven by hydraulic pressure to rotate to drive the third bevel gear 143 to rotate, and simultaneously drive the screw rods 144 on the first bevel gear 141 and the second bevel gear 142 to rotate in opposite directions respectively, so as to drive the roller nut seat 111 to synchronously move in opposite directions or in opposite directions along the guide rail 112, further, the roller nut seat 111 drives the scissor arm 12 to open or close, so that the guide sleeve 16 hinged in the scissor arm 12 slides up and down in the guide rod 15, and finally the footstock 13 is lifted up and down stably under the action of the scissor arm 12, and after the driving mechanisms such as the hydraulic motor 10 fail, the positions where the first bevel gear 141 and the second bevel gear 142 are respectively matched with the screw rods 144 can be well self-locked, so that safety accidents caused by rapid descending of the platform plate 2 on the footstock 13 can be avoided.
Based on the same technical concept, this application embodiment still provides a well workover platform, as shown in fig. 4, well workover platform sets up the landing slab 2, guardrail 3 and two at least elevating gear 1 of through-hole including the centre, and the through-hole in the middle of landing slab 2 is used for passing the well head, and the both ends of landing slab 2 are erect on elevating gear 1, and guardrail 3 sets up the periphery at landing slab 2.
The two ends of the platform plate 2 are erected on the lifting device 1, and the height change of the platform plate 2 is realized through the up-and-down movement of the lifting device 1, so that the stress of the platform plate 2 is balanced, and the problem of support unbalance loading easily caused when the lifting device 1 supports the platform plate 2 is further solved; through the cooperation of drive mechanism on elevating gear 1 and first removal subassembly, effectively realize well workover platform's self-locking function.
Because the lifting device has the technical effects, the workover platform with the lifting device also has the same technical effects, and further the same structural features are not repeated.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used for illustrating the technical solutions of the present application, but not limiting the same, and the scope of the present application is not limited thereto, and although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the exemplary embodiments of the present application, and are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A lifting device is characterized by comprising a driving device, a base, a scissor arm and a top seat, wherein a first moving assembly is arranged in the base, a second moving assembly is arranged in the top seat, and the upper end and the lower end of each of two arms of the scissor arm are respectively provided with an installation position;
the first moving assembly comprises two first moving parts which are oppositely arranged, and the two first moving parts are respectively and correspondingly connected with the two mounting positions at the lower end of the scissor fork arm; the second moving assembly comprises two second moving parts which are oppositely arranged, and the two second moving parts are respectively and correspondingly connected with the two mounting positions at the upper end of the scissor arm;
the driving device is connected with the two first moving parts through a transmission mechanism, drives the two first moving parts to move oppositely or reversely, and simultaneously drives the scissor fork arms to be opened or closed, so that the top seat rises or falls.
2. A lifting device as claimed in claim 1, characterized in that the transmission comprises a first bevel gear and a second bevel gear which are arranged opposite to each other, and a third bevel gear which meshes with the first bevel gear and the second bevel gear, respectively, the third bevel gear being connected to the output shaft of the drive;
and the rotating shafts of the first bevel gear and the second bevel gear are respectively connected with a screw rod.
3. The lifting device as claimed in claim 1, wherein the transmission mechanism comprises a wheel disc, and a first spur gear and a second spur gear which are oppositely arranged, wherein one side surface of the wheel disc is provided with teeth, the first spur gear and the second spur gear are both perpendicular to the wheel disc and are respectively meshed with the teeth of the wheel disc, and a rotating shaft of the wheel disc is connected with an output shaft of the driving device;
and the rotating shafts of the first straight gear and the second straight gear are respectively connected with a screw rod.
4. The lifting device as claimed in claim 2 or 3, wherein the first moving member is a roller nut seat or a slider with a threaded hole in the middle; the roller nut seat or the sliding block is in threaded connection with the screw rod, so that the driving device can drive the two first moving parts to move oppositely or reversely.
5. The lifting device as claimed in claim 1, wherein the second moving member is a roller base or a slider, and the roller base is correspondingly connected to the two mounting positions at the upper end of the scissor arm, or the slider is correspondingly connected to the two mounting positions at the upper end of the scissor arm.
6. The lifting device as claimed in claim 1, wherein guide rails are provided on both inner side walls of the base, and the first moving member is provided on the guide rails and is movable along the guide rails; and/or, be equipped with the guide rail on two inside walls of footstock, the second moving member sets up on the guide rail, and can follow the guide rail removes.
7. The lifting device as recited in claim 1 further comprising a guide bar having one end connected to the base and another end extending upwardly and through each intersection of the scissor arms such that the scissor arms can be opened and closed along the guide bar.
8. The lifting device as claimed in claim 7, characterized in that a guide sleeve is arranged at each intersection of the scissor arms, the guide sleeve is arranged on the guide rod, and the outer wall of the guide sleeve is connected with the scissor arms.
9. The lifting device as claimed in claim 1, further comprising two guide rods, wherein the arm bodies on both sides of the scissor arm are respectively provided with symmetrical long holes;
one end of each guide rod is connected with the base, and the other end of each guide rod extends upwards and penetrates through the strip holes in the arm bodies on the two sides of the scissor arm respectively, so that the scissor arm can be opened or closed along the guide rods.
10. A well intervention platform comprising a platform plate having a through hole formed therein, a guardrail and at least two lifting devices as claimed in any one of claims 1 to 9, wherein the through hole is adapted to pass through a well head, the two ends of the platform plate are mounted on the lifting devices, and the guardrail is disposed around the platform plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911200853.9A CN110723681A (en) | 2019-11-29 | 2019-11-29 | Lifting device and well repairing platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911200853.9A CN110723681A (en) | 2019-11-29 | 2019-11-29 | Lifting device and well repairing platform |
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| CN110723681A true CN110723681A (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911200853.9A Pending CN110723681A (en) | 2019-11-29 | 2019-11-29 | Lifting device and well repairing platform |
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| CN (1) | CN110723681A (en) |
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| CN113247814A (en) * | 2020-02-10 | 2021-08-13 | 北京二郎神科技有限公司 | Telescopic device, building and goods conveying system thereof |
| CN113319875A (en) * | 2021-06-11 | 2021-08-31 | 博众精工科技股份有限公司 | Suction nozzle mechanism |
| CN113759190A (en) * | 2021-07-27 | 2021-12-07 | 国网电力科学研究院有限公司 | Wireless receiving module adjusting device that charges |
| CN114380234A (en) * | 2022-01-20 | 2022-04-22 | 重庆嘉腾机器人自动化有限公司 | Heavy load bearing lifting AGV |
| CN114803934A (en) * | 2022-04-24 | 2022-07-29 | 南昌大学 | Lifting platform |
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Effective date of registration: 20201230 Address after: 412005 Room 201, Dingshan Road office building, Shifeng District, Zhuzhou City, Hunan Province Applicant after: HUNAN SANY PETROLEUM TECHNOLOGY Co.,Ltd. Address before: 410000 Xingsha Sany Industrial Park, Changsha City, Hunan Province Applicant before: SANY GROUP Co.,Ltd. HUNAN BRANCH |
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Application publication date: 20200124 |