CN114031004A

CN114031004A - Lifting machine

Info

Publication number: CN114031004A
Application number: CN202111438810.1A
Authority: CN
Inventors: 彭国成; 梅景平; 何薪
Original assignee: Shanghai Yichui Machinery Technology Co ltd
Current assignee: Shanghai Yichui Machinery Technology Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-02-11

Abstract

The application discloses handling machine includes: the device comprises a frame, a pitching mechanism and a vertical hoisting mechanism. The pitch mechanism includes a pitch boom movably connected to the frame. The vertical hoisting mechanism is in transmission connection with the pitching suspension arm, and the tail end of the vertical hoisting mechanism is connected with a hoisting tool. The lifting machine is provided with two power mechanisms including a pitching mechanism and a vertical lifting mechanism. The pitching mechanism is fixed after changing the amplitude to the maximum height, and is switched to the vertical hoisting mechanism to execute hoisting operation, so that the energy consumption of the pitching mechanism is reduced, and the oil consumption/power consumption of the hoisting operation of the hoisting box is reduced by 10-30%. Meanwhile, the pitching mechanism and the vertical hoisting mechanism are matched for operation, so that the full-height heavy container stacking operation can be carried out by spanning multiple rows of multiple layers of containers. The lifting machine is simple in structure and low in cost, can span multiple rows of containers to carry out drawing and hoisting operation on a target box, simplifies the drawing process, improves the operation efficiency and saves the cost.

Description

Lifting machine

Technical Field

The invention relates to the technical field of hoisting equipment, in particular to a lifting machine.

Background

In port and wharf, railway freight station and logistics container yard, the container front crane is mostly used as heavy container loading and unloading crane. The common front crane has a multi-row sequential box lifting function and limited row-crossing box lifting capacity, but can not carry out the box picking and lifting operation of lifting containers below one layer in a crossing way, and can only lift two layers of boxes even if an overhead lifting appliance is additionally hung, and can not carry out longitudinal box lifting and stacking operation on containers with more than two layers of 40 feet and containers with more than three layers of 20 feet. There are also cross-track and vertical lift container requirements at railway container terminals that conventional face cranes often fail to meet.

In addition, with the successful appearance of large-scale automatic container wharfs and storage yards and the high labor cost, the industry calls for low-cost automatic stacking and lifting equipment and control systems for small and medium-sized container storage yards. If the small yard adopts the large portal crane of the large-scale automatic wharf to carry out automatic operation, each automatic portal crane ARMG or ARTG has a selling price of more than 1000 ten thousand, and the track and foundation construction cost is added, only the equipment cost is about 1200 ten thousand, and common customers cannot bear the high equipment purchase cost.

With the popularization and the demand of rapidity of logistics container network points, the small railway freight stations and inland river shipping terminals of containers increase year by year, if the construction requirements of the conventional inland river terminals are met, a small shore bridge crane (STS) is generally required to be purchased for loading, unloading and lifting of containers from shore to ship, and meanwhile, a reach crane or RMG is also required to be purchased for container stacking operation, and the total purchase cost of the equipment is up to over 1200 ten thousand according to the equipment configuration scheme.

Disclosure of Invention

An object of this application is to provide a handling machine, can stride across multirow container and draw a case hoist and mount operation to the target case, simplify and draw a case process, also can be used to inland river pier and replace bank bridge crane, can regard as the automatic operation equipment of first-selected container yard to use, improved the operating efficiency, practiced thrift the expense.

In order to achieve the above object, the present application provides the following technical solutions.

A trolley comprising:

a frame;

a pitch mechanism including a pitch boom movably connected to the frame;

the vertical lifting mechanism is in transmission connection with the pitching suspension arm, and the tail end of the vertical lifting mechanism is connected with a lifting appliance.

Optionally, a steering mechanism is arranged at one end of the pitching suspension arm, which is far away from the frame, the vertical hoisting mechanism comprises a winch and a steel wire rope, the winch is arranged on the frame, one end of the steel wire rope is connected to the winch, the other end of the steel wire rope is wound through the steering mechanism, and the steel wire rope is connected to the lifting appliance.

Optionally, two ends of the pitching suspension arm in the length direction are respectively provided with a first fixed pulley, and the steel wire rope sequentially winds around the fixed pulleys and extends to the steering mechanism.

Optionally, the pitching mechanism further comprises a support frame and a luffing cylinder, the support frame and the luffing cylinder are both connected to the frame, and the support frame and the luffing cylinder are both hinged to the pitching boom.

Optionally, the support frame includes a main support and an inclined strut, one end of the main support is hinged to the frame, the other end of the main support is hinged to the pitching suspension arm, one end of the inclined strut is hinged to the main support, and the other end of the inclined strut is hinged to the frame.

Optionally, the pitching suspension arm comprises a basic arm, a telescopic arm and a telescopic oil cylinder;

the basic arm is provided with a telescopic cavity, one end of the telescopic arm is connected with the telescopic cavity, the telescopic oil cylinder is arranged in the telescopic cavity, and two ends of the telescopic oil cylinder are respectively connected with the basic arm and the telescopic arm.

The basic arm is hinged with the supporting frame and the luffing cylinder respectively.

Optionally, the vertical hoisting device includes a plurality of steel wire ropes, the winch includes a plurality of winding drums, one end of each steel wire rope is connected to a corresponding winding drum, and the other end of each steel wire rope is connected to the spreader through the steering mechanism.

Optionally, the lifting machine further comprises a shaking prevention mechanism, the shaking prevention mechanism is connected to the pitching suspension arm, the shaking prevention mechanism is provided with a steel wire rope positioning device, the steel wire rope positioning device is limited on the side portion of the steel wire rope, the position of the steel wire rope is limited, and the steel wire rope is prevented from shaking.

Optionally, the anti-shaking mechanism comprises a telescopic device, the steel wire rope positioning device is connected to the telescopic device, and the telescopic device drives the steel wire rope positioning device to move up and down.

Optionally, the telescopic device comprises a telescopic connecting rod assembly and an adjusting oil cylinder;

the telescopic connecting rod assembly comprises a plurality of connecting rod groups, each connecting rod group comprises two movable connecting rods which are arranged in a crossed mode, and the movable connecting rods of two adjacent connecting rod groups are hinged;

two ends of the adjusting oil cylinder are respectively connected with two movable connecting rods of the same connecting rod group;

the adjusting oil cylinder moves in a telescopic mode to drive the telescopic connecting rod assembly to extend or shorten.

Optionally, the steel wire rope positioning device comprises a guide sleeve, and the steel wire rope penetrates through the guide sleeve;

or, the steel wire rope positioning mechanism comprises a roller group, the roller group comprises two rollers, and the steel wire rope is clamped between the two rollers.

Optionally, the frame comprises a front frame and a rear frame, the front frame is provided with a cavity, and one end of the rear frame is slidably connected to the cavity to adjust the length of the lifting machine.

Optionally, the frame is movably connected with two rotary bridges, wheels are arranged on the rotary bridges, a telescopic device is arranged between the frame and the rotary bridges, and the telescopic device is in telescopic motion to drive the rotary bridges to swing so as to adjust the wheel track of the wheels.

Optionally, be provided with swing motor and gyration supporting seat on the gyration bridge, the gyration supporting seat includes swing bearing and gyration support, swing bearing connects in the gyration bridge, the gyration support rotationally connect in swing bearing, the wheel rotationally connect in the gyration is supported, the swing motor with the gyration is supported the transmission and is connected, drives the gyration is supported and is rotated, in order to adjust the traffic direction of wheel.

The technical scheme provided by the application can achieve the following beneficial effects:

the lifting machine is provided with two power mechanisms including a pitching mechanism and a vertical lifting mechanism. The pitching mechanism is fixed after changing the amplitude to the maximum height, and is switched to the vertical hoisting mechanism to execute hoisting operation, so that the energy consumption of the pitching mechanism is reduced, and the oil consumption/power consumption of the hoisting operation of the hoisting box is reduced by 10-30%. Meanwhile, the pitching mechanism and the vertical hoisting mechanism are matched for operation, so that the full-height heavy container stacking operation can be carried out by spanning multiple rows of multiple layers of containers. The lifting machine is simple in structure and low in cost, can span multiple rows of containers to carry out drawing and hoisting operation on a target box, simplifies the drawing process, improves the operation efficiency and saves the cost.

Drawings

Fig. 1 is a side view of a trolley provided in an embodiment of the present application;

fig. 2 is a schematic view of a swing preventing mechanism of a crane provided in an embodiment of the present application in a contracted state;

fig. 3 is a schematic view of an anti-swing mechanism of a crane provided in an embodiment of the present application in an extended state;

fig. 4 is a schematic view of a vertical hoisting mechanism of a crane provided in an embodiment of the present application;

FIG. 5 is a front view of a trolley provided in an embodiment of the present application;

FIG. 6 is an enlarged view of portion A of FIG. 5;

fig. 7 is a top view of a trolley provided in an embodiment of the present application.

Reference numerals:

1. a frame; 11. a front frame; 12. a rear frame; 2. a pitch mechanism; 21. a pitching suspension arm; 211. a base arm; 212. a telescopic arm; 213. a telescopic oil cylinder; 214. a first fixed pulley; 22. a steering mechanism; 221. a second fixed pulley; 23. a support frame; 231. a main support; 232. bracing; 24. a variable amplitude oil cylinder; 3. a vertical hoisting mechanism; 31. a winch; 32. a wire rope; 4. an anti-shake mechanism; 41. a wire rope positioning device; 411. a horizontal portion; 412. a vertical portion; 413. a guide sleeve; 42. a telescopic link assembly; 421. a connecting strip; 422. a movable connecting rod; 43. adjusting the oil cylinder; 5. a swing bridge; 51. a rotary supporting seat; 52. a rotary motor; 53. a swing bearing; 6. a telescoping device; 7. a wheel; 8. a movable pulley; 9. a hanger.

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments of the present application will be briefly introduced below; the accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.

Detailed Description

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 some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be noted that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described in terms of the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

Referring to fig. 1 to 7, an embodiment of the present application provides a trolley, including: the device comprises a frame 1, a pitching mechanism 2 and a vertical hoisting mechanism 3. The pitch mechanism 2 comprises a pitch boom 21, the pitch boom 21 being movably connected to the frame. The vertical hoisting mechanism 3 is in transmission connection with the pitching suspension arm 21, and the tail end of the vertical hoisting mechanism 3 is connected with a hoisting tool 9.

In the embodiment of the application, the lifting machine is provided with two power mechanisms, namely a pitching mechanism 2 and a vertical lifting mechanism 3. The pitching mechanism 2 is fixed after amplitude variation to the maximum height, and is switched to the vertical hoisting mechanism 3 to execute vertical hoisting operation, so that the energy consumption of the pitching mechanism 2 is reduced, and the oil consumption/power consumption of the hoisting operation of the hoisting box is reduced by 10-30%. Meanwhile, the pitching mechanism 2 and the vertical hoisting mechanism 3 are matched for operation, so that the container can span multiple rows and layers of containers, and the full-height heavy container stacking operation can be carried out. The lifting machine is simple in structure and low in cost, can span multiple rows of containers to draw and hoist a target box, simplifies the drawing process, improves the operation efficiency and saves the cost.

Referring to fig. 1 to 3, a steering mechanism 22 is disposed at one end of the pitching boom 21 away from the frame, the vertical hoisting mechanism 3 includes a winch 31 and a steel wire rope 32, the winch 31 is disposed on the frame, one end of the steel wire rope 32 is connected to the winch 31, the other end of the steel wire rope passes around the steering mechanism 22 and naturally sags, and the bottom end of the steel wire rope is connected to the spreader 9. Specifically, the bottom end of the steel wire rope 32 is connected with a movable pulley 8, and the lifting appliance is connected to the movable pulley 8. In the process of the pitching motion of the pitching suspension arm 21, the partial structure of the vertical hoisting mechanism 3 can be driven to synchronously move. The working end of the vertical hoisting mechanism 3 is positioned at the target position, and the hoisting operation is conveniently executed.

The steering mechanism 22 may include a second fixed pulley 221, the steel wire rope 32 naturally droops after passing around the second fixed pulley 221, and the second fixed pulley 221 is disposed to facilitate reducing the lifting resistance of the steel wire rope.

Referring to fig. 1, in a possible embodiment, the pitching boom 21 is provided with a first fixed pulley 214 at each end along the length direction, and the wire rope 32 sequentially passes around each first fixed pulley 214 and then extends to the steering mechanism 22. By the arrangement of the first fixed pulley 214, the wire rope and the pitching arm 21 are parallel, and the steering movement resistance is reduced.

Referring to fig. 1, in a possible embodiment, the pitching mechanism 2 further comprises a support frame 23 and a luffing cylinder 24, wherein the support frame 23 and the luffing cylinder 24 are both connected to the frame 1, and the support frame 23 and the luffing cylinder 24 are both hinged to the pitching boom 21. The luffing cylinder 24 extends and retracts to drive the pitching suspension arm 21 to pitch. Wherein, the supporting frame 23 is fixed in position and can be used as a pivot of the pitching suspension arm 21. The support frame 23 is provided with a first articulated seat to which the pitching boom 21 is connected. The pitching boom 21 is rotatable about said first articulated seat. The telescopic motion of the luffing cylinder 24 can drive the luffing boom 21 to rotate about the first articulated seat for adjusting the pitch angle. Wherein, after the luffing cylinder 24 is extended to the target position, the luffing cylinder is fixed, and the position of the luffing jib 21 is locked. At the moment, the container can be lifted only by controlling the vertical lifting mechanism 3 to operate. In the process, because the height position of the pitching suspension arm 21 is fixed, the energy consumption of the amplitude variation of the front suspension arm can not be generated, and the oil consumption/power consumption of the lifting operation of the suspension box is reduced by 10-30%.

Referring to fig. 1, in a possible embodiment, the support frame 23 comprises a main support 231 and a diagonal support 232, wherein one end of the main support 231 is hinged to the frame 1, the other end of the main support 231 is hinged to the pitching boom 21, one end of the diagonal support 232 is hinged to the main support 231, and the other end of the diagonal support 232 is hinged to the frame 1. The main support 231, the diagonal support 232 and the frame 1 form a triangular stable structure, and can form a stable fulcrum.

Wherein, the support frame 23 can be truss structure, and the main support 231 has two support arms that the interval set up and the crossbeam of connecting two support arms promptly, and two support arm tip all set up first articulated seat, the position that two support arms approached the end all sets up the articulated seat of second, and bracing 232 can include two, and two bracing 232 homogeneous ends are connected in the articulated seat of second, and the other end articulates in the frame. The two supporting arms are hinged with the frame. The two first hinge seats can be hinged with the pitching suspension arm 21 through the rotating shaft, and the structural design of the truss increases the structural strength and can stably support the pitching suspension arm 21.

Referring to fig. 1, in one possible embodiment, the luffing boom 21 comprises a base arm 211, a telescopic arm 212 and a telescopic ram 213. The basic arm 211 is provided with a telescopic cavity, one end of the telescopic arm 212 is connected with the telescopic cavity, the telescopic oil cylinder 213 is arranged in the telescopic cavity, and two ends of the telescopic oil cylinder 213 are respectively connected with the basic arm 211 and the telescopic arm 212. The telescopic cylinder 213 moves telescopically to drive the telescopic arm 212 to translate along the length direction of the basic arm 211, so as to realize extension or contraction.

Wherein, the basic arm 211 is respectively hinged with the supporting frame 23 and the luffing cylinder 24.

In a possible embodiment, the vertical lifting device comprises a plurality of steel cables 32, the winch 31 comprises a plurality of winding drums, and each steel cable 32 is connected to the corresponding winding drum at one end and connected to the lifting appliance 9 through the steering mechanism 22 at the other end. Through setting up many wire rope 32, shared the load, improved the security, and many wire rope 32 have improved the stationarity of hoist and mount process.

Referring to fig. 1 to 3, in a possible embodiment, the lifting machine further includes a shaking prevention mechanism 4, the shaking prevention mechanism 4 is connected to the pitching boom 21, the shaking prevention mechanism 4 is provided with a steel wire rope positioning device 41, and the steel wire rope positioning device 41 is limited on the side of the steel wire rope 32 to limit the position of the steel wire rope 32 and prevent the steel wire rope 32 from shaking. In the application, the lifting appliance 9 is controlled to ascend and descend by winding the winding drum and unwinding the steel wire rope 32, the lifting appliance 9 is prevented from swinging by the anti-swing mechanism 4, and the vertical traction operation of the lifting appliance 9 is realized.

Referring to fig. 1 to 3, in a possible embodiment, the anti-shake mechanism 4 includes a telescopic device, and the cable positioning device 41 is connected to the telescopic device, and the telescopic device drives the cable positioning device 41 to move up and down. In this embodiment, in the process of lowering the hanger 9 by the steel wire rope 32, the telescopic device can drive the steel wire rope positioning device 41 to descend synchronously, so that the steel wire rope 32 in a free state has a smaller length, and the anti-shaking effect is achieved. During the lifting process of the container lifted by the steel wire rope 32, the telescopic device retracts synchronously and does not block the lifting of the container. And keeps restricting the function of the wire rope 32.

Wherein, the telescopic device comprises a telescopic connecting rod assembly 42 and an adjusting oil cylinder 43. The telescopic link assembly 42 includes a plurality of link groups, each link group includes two movable links 422 arranged in a crossing manner, and the movable links 422 of two adjacent link groups are hinged to each other. Two ends of the adjusting oil cylinder 43 are respectively connected with two movable connecting rods 422 of the same connecting rod group. The adjusting cylinder 43 extends and retracts to drive the telescopic connecting rod assembly 42 to extend or retract.

In the above scheme, when the adjusting cylinder 43 extends, the two movable connecting rods 422 are driven to extend by a large angle, and the whole telescopic connecting rod assembly 42 is shortened. When the adjusting oil cylinder 43 is shortened, the two movable connecting rods 422 can be driven to reduce the opening angle, and the length of the whole telescopic connecting rod assembly 42 is increased.

In one possible embodiment, the cable positioning device 41 may include a guide sleeve 413, and the cable 32 is disposed through the guide sleeve 413. For example, the wire rope positioning device 41 is provided with a plurality of guide sleeves 413 along the longitudinal direction, and each wire rope 32 is inserted through the corresponding guide sleeve 413. The wire rope positioning device 41 may include a horizontal portion 411 and a vertical portion 412, wherein the horizontal portion 411 is provided with a horizontal guide groove, the horizontal portion 411 is provided with a plurality of guide sleeves 413 along a length direction, and the vertical portion 412 is provided with a vertical guide groove. The hinge shaft of two crossed movable connecting rods 422 of one connecting rod group of the telescopic connecting rod assembly 42 is provided with a first guide column, and the tail ends of the two movable connecting rods 422 are respectively provided with a second guide column. Two second guide posts are all inserted in the horizontal guide groove, and first guide post is inserted in the vertical guide groove. Therefore, in the process of the telescopic connecting rod assembly 42 extending and retracting, the steel wire rope positioning device 41 keeps a stable state, the phenomenon of inclination is avoided, and the steel wire ropes 32 are ensured to keep a vertical state.

As shown in fig. 2 and 3, two movable links 422 of a group of links at the top end of the telescopic link assembly 42 are respectively connected with a connecting bar 421, and one end of each of the two connecting bars 421 is hinged to the corresponding movable link 422. The other ends of the two connecting strips 421 are connected to the pitch boom 21 via a rotating shaft, for example, to a steering mechanism 22 at the end of the pitch boom 21. The steering mechanism 22 is provided with a bracket and a plurality of second fixed pulleys, and the other ends of the two connecting bars 421 are connected to the bracket through a rotating shaft. Thus, during the telescopic movement of the telescopic link assembly 42, the two connecting strips 421 can rotate around the rotation axis.

In another possible embodiment, the cable positioning device 41 includes two roller sets, each of which includes two rollers, and the cable 32 is clamped between the two rollers. The positioning device 41 may include a triangular bracket, which is connected to the rotating shafts of two movable links of a link group, and has a bottom side and two bevel edges connected to the bottom side, and a plurality of roller groups may be disposed on the bottom side along the length direction. Each roller set is used for clamping and limiting one steel wire rope 32.

Referring to fig. 1 and 7, in one possible embodiment, the frame comprises a front frame 11 and a rear frame 12, the front frame 11 having a cavity, and one end of the rear frame 12 being slidably connected to the cavity to adjust the length of the trolley. The lifting machine is provided with a rear frame 12 with a variable wheelbase, when a container lifting appliance 9 is loaded and extends forwards, and the whole vehicle is in a forward unstable state, the rear frame 12 can be controlled to extend backwards to change the wheelbase, so that the longitudinal stable torque of the whole vehicle is increased, and the equipment obtains larger lifting capacity.

Wherein, preceding frame 11 can include two main casees that two intervals set up, all is provided with the cavity in two main casees, and back frame 12 then corresponds and sets up two telescopic girder, and two telescopic girder of back frame 12 connect respectively in the cavity of two main casees.

Referring to fig. 1, 5, 6 and 7, two rotary axles 5 are movably connected to the frame 1, wheels 7 are disposed on the rotary axles 5, and a telescopic device 6 is disposed between the frame and the rotary axles 5, and the telescopic device 6 can drive the rotary axles 5 to swing so as to adjust the wheel track of the wheels. The telescopic device 6 can be a telescopic oil cylinder, one end of the telescopic oil cylinder is connected to the frame, the other end of the telescopic oil cylinder is connected to the rotary axle 5, and telescopic motion of the telescopic oil cylinder can drive the rotary axle 5 to swing. For example, when the lifting machine needs to be transported, the telescopic oil cylinder can be controlled to drive the rotary axle 5 to swing to be stored in the front part of the frame, so that the wheel track of the front wheels is reduced, and the space is saved.

Wherein, the rotary bridge 5 is arranged at least at the front part of the frame 1. The rotary axle 5 is provided with front wheels. Be provided with swing motor 52 and gyration supporting seat 51 on the gyration bridge 5, gyration supporting seat 51 includes oscillating bearing 53 and gyration support, oscillating bearing 53 is connected in gyration bridge 5, the gyration support rotationally connect in oscillating bearing 53, wheel 7 connect in the gyration is supported, and wheel 7 can be relatively the gyration and is supported the roll, swing motor 53 with the gyration is supported the transmission and is connected, drives the gyration is supported and is rotated, in order to adjust the traffic direction of wheel. The turning motor 52 can drive the front wheels to turn in situ, and execute complex turning actions such as 90-degree swing turning and the like. The front wheel 7 is provided with an independent driving mechanism, and the driving mechanism is in transmission connection with the front wheel and drives the front wheel to roll. The rotary motor 52 adjusts the running direction of the front wheels, and the transverse running of the lifting machine can be realized by matching with a driving mechanism. Wherein, the rotary motor 52 may include a motor and a worm, the rotary support is provided with meshing teeth along the circumferential direction, the worm is meshed with the rotary support, the motor drives the worm to rotate so as to drive the rotary support to rotate, and finally the front wheel 7 is driven to rotate so as to adjust the driving direction.

In practice it has been demonstrated that: the lifting machine can be used for longitudinally lifting 20-foot or 40-foot containers, the operation capacity can be as high as 4-5 layers of high containers, the restricted working area of a common reach stacker is broken through, and the site utilization rate is improved. In addition, by increasing the stroke of the lifting wire rope of the lifting appliance 9, the invention can also be used for loading, unloading and carrying the ship-borne containers of a small barge wharf.

The pitching suspension arm carries out container carrying running operation through amplitude variation of the amplitude variation oil cylinder 24 to the lowest height, the minimum running height of the equipment can be 9 meters (stacking 5-layer high boxes), the height of the common portal crane is the maximum stacking box height of the container, the height of the lifting appliance is 9+ the height of the gantry main beam, and the height is about 19 meters (5 layers are multiplied by 2.9+2+2.5 is 19 meters), and the gravity center of the lifting machine is far lower than that of the portal crane, so that the large running speed and the good running stability can be obtained.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A trolley, comprising:

a frame;

a pitch mechanism including a pitch boom movably connected to the frame;

2. The trolley of claim 1, wherein a steering mechanism is disposed at an end of the pitching suspension arm away from the frame, the vertical hoisting mechanism comprises a hoist and a wire rope, the hoist is disposed on the frame, one end of the wire rope is connected to the hoist, the other end of the wire rope is wound through the steering mechanism, and the wire rope is connected to the lifting appliance.

3. The trolley of claim 2, wherein the two ends of the luffing jib in the length direction are respectively provided with a first fixed pulley, and the wire rope sequentially passes around the fixed pulleys and extends to the steering mechanism.

4. The trolley of claim 1, wherein the luffing mechanism further comprises a support frame and a luffing cylinder, the support frame and the luffing cylinder are both connected to the frame, and the support frame and the luffing cylinder are both hinged to the luffing jib.

5. The trolley of claim 4, wherein the support frame includes a main support and a diagonal support, one end of the main support is hinged to the frame, the other end of the main support is hinged to the pitching boom, one end of the diagonal support is hinged to the main support, and the other end of the diagonal support is hinged to the frame.

6. The trolley of claim 4, wherein the luffing jib comprises a base arm, a telescopic arm and a telescopic ram;

7. The trolley of claim 1, wherein the vertical lifting means comprises a plurality of wire ropes, and the hoist comprises a plurality of drums, each of the wire ropes having one end connected to a respective drum and the other end connected to the spreader via the steering mechanism.

8. The trolley of claim 1, further comprising a sway prevention mechanism, wherein the sway prevention mechanism is connected to the pitching suspension arm, and the sway prevention mechanism is provided with a steel wire rope positioning device, and the steel wire rope positioning device is limited on the side of the steel wire rope to limit the position of the steel wire rope and prevent the steel wire rope from swaying.

9. The trolley of claim 8, wherein the anti-sway mechanism comprises a telescopic device, the wire rope positioning device is connected to the telescopic device, and the telescopic device drives the wire rope positioning device to move up and down.

10. The trolley of claim 9, wherein the telescopic means comprises a telescopic link assembly and an adjustment cylinder;

11. The trolley according to claim 8, wherein the wire rope positioning device comprises a guide sleeve through which the wire rope is arranged;

12. The trolley of claim 1, wherein the frame includes a front frame and a rear frame, the front frame having a cavity, one end of the rear frame being slidably connected to the cavity to adjust the length of the trolley.

13. The trolley as claimed in claim 1, wherein the frame is movably connected with two rotary bridges, wheels are arranged on the rotary bridges, and a telescopic device is arranged between the frame and the rotary bridges, and the telescopic device is moved telescopically to drive the rotary bridges to swing so as to adjust the wheel track of the wheels.

14. The trolley of claim 13, wherein the swing bridge is provided with a swing motor and a swing support, the swing support comprises a swing bearing and a swing support, the swing bearing is connected to the swing bridge, the swing support is rotatably connected to the swing bearing, the wheel is connected to the swing support, and the swing motor is in transmission connection with the swing support to drive the swing support to rotate so as to adjust the traveling direction of the wheel.