CN204823557U - Speed limiter - Google Patents
Speed limiter Download PDFInfo
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- CN204823557U CN204823557U CN201520398536.3U CN201520398536U CN204823557U CN 204823557 U CN204823557 U CN 204823557U CN 201520398536 U CN201520398536 U CN 201520398536U CN 204823557 U CN204823557 U CN 204823557U
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- rope sheave
- rope
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- velocity limiter
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Abstract
The utility model relates to a speed limiter (100), its rope sheave (101) have first rope sheave halfbody (101a) and the second rope sheave halfbody (101b) that sets up side by side in the rotation axis of rope sheave direction, make first and second rope sheave halfbody relative movement in the rotation axis direction through actuating mechanism to can make the space between the first and second rope sheave halfbody change. Size through making the space changes, makes the book string radius (R) of the speed limiter rope on the rope sheave change, from this, can change the ratio of the rotation rate of rope sheave for the translation rate of speed limiter rope.
Description
Technical field
Embodiment of the present utility model relates to a kind of velocity limiter, and whether the moving velocity for the car (elevatorcar) detecting elevator exceeds the speed limit and carry out speed limit action speed limit.
Background technology
Elevator setting speed limiter, it makes car emergent stopping when car sinks into overspeed condition.Velocity limiter has with the governor rope (governorrope) of the speed movement identical with the speed of car, the rope sheave being wrapping with speed limiter rope and the velocity limiter weight (governorweight) of the effect bottom offset of centnifugal force that changes at the rotative speed along with rope sheave.Once car is in overspeed condition, the trigger switch be combined with velocity limiter counter weight machine makes stopping switch (shutdownswitch) action, thus cuts off the power supply of towing machine.After cutting off the electricity supply, in the situation (during cage descending) that the speed of car rises further, the other trigger switch be combined with velocity limiter weight makes rope clamping mechanism body (ropegrippingmechanismbody) action, thus, and emergency braking apparatus action.
In recent years, such as, in super high speed elevator etc., there is the elevator of command speed when making car increase higher than command speed during cage descending.In this case, the supervelocity as the threshold speed making stopping switch motion being respectively set at values different from during cage descending when car rises.Like this, in order to supervelocity during rising that correspondence is different and supervelocity when declining, velocity limiter arranges Liang Ge testing agency (the first testing agency and the second testing agency), or appropriately combined the two, or select one to carry out action.
But, like this once arrange Liang Ge testing agency, velocity limiter can be caused to maximize.Thus when needing one compacter (compact) and different risings can be detected supervelocity with decline time supervelocity velocity limiter.
Utility model content
The purpose of this utility model is to form a kind of velocity limiter compactly, and the supervelocity becoming velocity limiter action benchmark can be set as different values by it.
The velocity limiter of an example of the present utility model, comprising: rope sheave, and it is wrapping with the governor rope moved together with the car of elevator, and rotates along with the movement of this governor rope; Velocity limiter weight, it is combined with rope sheave, and the centnifugal force changed according to the rotative speed along with rope sheave is subjected to displacement, and wherein, when causing the displacement of velocity limiter weight to exceed specified amount when car speeding, carries out speed limit action.The rope sheave of this velocity limiter has the first rope sheave halfbody and the second rope sheave halfbody that are arranged side by side on the rotation axis direction of rope sheave, be provided with driver train, it makes first and second rope sheave halfbody relative movement on rotation axis direction, and the space between the first and second rope sheave halfbody is changed.Once make the size in described space change, then the radius that is wrapping with on rope sheave of governor rope changes, and changes the ratio of the moving velocity of the relative governor rope of rotative speed of described rope sheave.
Accompanying drawing explanation
Fig. 1 is the overall diagram comprising the lift appliance of the velocity limiter of the rope sheave with isolating construction schematically represented involved by an applicable embodiment of the present utility model.
Fig. 2 is the block diagram representing the example that the entirety comprising the velocity limiter of the rope sheave with isolating construction involved by an embodiment of the present utility model is formed.
Fig. 3 a and Fig. 3 b is for illustration of the schematic diagram comprising a configuration example of the velocity limiter of the rope sheave with isolating construction involved by an embodiment of the present utility model.
Fig. 4 a and Fig. 4 b is for illustration of the schematic diagram comprising other configuration examples of the velocity limiter of the rope sheave with isolating construction involved by an embodiment of the present utility model.
Fig. 5 is the schematic diagram of the configuration for illustration of the belt in the configuration example of Fig. 5.
Fig. 6 is the schematic sectional view of the example representing the mechanism that rope sheave halfbody can be made to relatively move each other in rotation axis direction.
Detailed description of the invention
Below, with reference to accompanying drawing, an embodiment of the present utility model is described.
First, with reference to Fig. 1, the example (being not limited to this) that the entirety of the lift appliance of the velocity limiter involved by an applicable embodiment of the present utility model is formed is described.
In FIG, symbol 1 represents the hoistway of elevator, and symbol 2 represents the machine room arranged on the top of hoistway 1.The towing machine 3 and deflection sheave (deflectingsheave) 4 with drive pulley (drivesheave) 3a is provided with in machine room 2.Towing machine 3 and deflection sheave 4 are wound with hoist ropes (hoistingrope) (main rope) 5.One end of hoist ropes 5 plays the car (car) 6 of elevator, and the other end of hoist ropes 5 plays bob-weight 7.By driving towing machine 3, car 6 and bob-weight 7 are elevated in hoistway 1 in the opposite direction.
The bottom of the well (pit) of hoistway 1 is provided with car energy disperser 8 and bob-weight energy disperser 9.Car energy disperser 8 and bob-weight energy disperser 9 are respectively used to cushion the car 6 that in emergency circumstances falls and the impact suffered by bob-weight 7.
In the present embodiment, be provided with the control setup 10 of the action controlling towing machine 3 in machine room 2, under the control action of control setup 10, speed different from when declining when car 6 is to rise operates.
Car 6 is provided with emergency braking apparatus 11.Emergency braking apparatus 11, via becoming the wrist 12 being called as a part for link mechanism (linkmechanism) (detail section is not shown) of safe link rod (safetylink) etc. that car 6 is installed, is connected with annular governor rope (governorrope) 13.Governor rope 13 is wound around on rope sheave 101 that tension wheel 14 that the bottom of hoistway 1 is arranged and the velocity limiter 100 in machine room 2 are arranged.
Because governor rope 13 connects via above-mentioned not shown link mechanism (having wrist 12) and car 6, thus when routine operates, governor rope 13 follows the lifting of car 6, and at tension wheel 14 and rope sheave 101 loopy movings.Therefore, the speed of the corresponding car 6 of the rotative speed of rope sheave 101 changes.Velocity limiter 100 based on the rotative speed as corresponding rope sheave 101 in the displacement of flyball (flyweight) (detailed content sees below part) of the velocity limiter weight (governorweight) of centrifugal action bottom offset, whether the speed detecting car 6 exceedes specified speed, thus carries out speed limit to car 6.
Specified speed (1.3 times of such as command speed) when velocity limiter 100 detects the rising of car 6 is as the first rising supervelocity VU1, and specified speed when detecting the decline of car 6 is as the first decline supervelocity VD1.Once these supervelocity VU1 and VD1 be detected, stop driving towing machine 3.
Even if drive towing machine 3 in stopping, when car 6 does not stop yet, velocity limiter 100 detects the second decline supervelocity VD2 faster than the first decline supervelocity VD1.Once the second decline supervelocity VD2 be detected, then velocity limiter 100 is braked by rope clamping mechanism body (ropegrippingmechanismbody) 102 damp governor rope 13.Thus, governor rope 13 relatively car 6 is upwards lifted, via the not shown link mechanism comprising wrist 12, and emergency braking apparatus 11 action.Emergency braking apparatus 11, by not shown brake scotch (brakeshoe), clamps not shown guide rail (guiderail), thus the decline of car 6 is stopped.
The formation of velocity limiter 100 as described later, except being set to except isolating construction by rope sheave 101, can adopt known parts.With reference to a configuration example of the velocity limiter 100 that Fig. 2 simple declaration can be selected.
Velocity limiter 100 is flyball formula (flyweighttype) device.Velocity limiter 100 has the support (frame) 103 of the S. A. 101A for supporting rope sheave 101.Rope sheave 101 is provided with a pair flyball (flyweight) 104.Flyball 104, via axle 105, can joltily be arranged on rope sheave 101 centered by the shake axis extended in the horizontal direction.In addition, as described later, when rope sheave 101 is divided into two halfbodies, flyball 104 can be arranged on arbitrary halfbody.A pair flyball 104 is connect each other by brace rod (connectingrod) 106, and the displacement (waving angle) of two flyballs 104 remains identical.
Flyball 104 is by the force application mechanism 107 of the value (initial setting value) for adjusting the supervelocity (above-mentioned supervelocity VU1, VD1, VD2) of carrying out speed limit action, and when usually utilizing spring (spring) to be subject to centrifugal action to these flyballs 104, the side of displacement exerts a force in the opposite direction.
Be provided with ratchet gear (ratchetwheel) 108 adjacent and coaxial with rope sheave 101 with rope sheave 101 in axial direction.Ratchet gear 108 is when routine operates, and non rotating, remains static.The periphery of ratchet gear 108 is provided with holding claws (hidden in fig. 2 and lose), rope clamping mechanism body 102 is remained on rope releasing position (ropereleasingposition) (position that the inclined-plane shown in Fig. 2 tilts) by this holding claws.
When the displacement that flyball 104 occurs under centrifugal action (waving angle centered by axle 105) is more than the first specified amount, action pin (operatingpin) (not shown) be arranged on flyball 104 touches stopping switch (shutdownswitch) 109, make stopping switch (shutdownswitch) 109 action, thus the driving of towing machine 3 is stopped.
When the displacement that flyball 104 occurs under centrifugal action is more than the second specified amount, is arranged on action pawl on flyball 104 (hidden in fig. 2 and lose) and engages with the jut of ratchet gear 108, thus ratchet gear 108 is rotated.Thus, the not shown holding claws of ratchet gear 108 is removed to the maintenance of rope clamping mechanism body 102, rope clamping mechanism body 102 horizontal inversion.Thus, rope clamping part (ropegrippingmember) 102a is relative with motionless rope clamping part 102b, under the elastic force effect being arranged on the spring (spring) on rope clamping mechanism body 102 (hidden in fig. 2 and lose), governor rope 13 is pressed on rope clamping part (ropegrippingmember) 102b, thus, governor rope 13 is braked, emergency braking apparatus 11 action.
Next, the formation of the rope sheave 101 that the supervelocity of detection can be made to change is described with reference to Fig. 3 a and Fig. 3 b.
Rope sheave 101 is split into two parts in the axial direction, that is, rope sheave is made up of two rope sheave halfbodies 101a, 101b.Rope sheave halfbody 101a, 101b in the axial direction can relative movements, and the interval G in the rotation axis direction of rope sheave halfbody 101a, 101b is variable.In the illustrated embodiment, rope sheave halfbody 101a is motionless on rotation axis direction, and rope sheave halfbody 101b is movable on rotation axis direction.By arranging suitable hydraulic drive mechanism (hereinafter one of them example will be described), the relative movement of such rope sheave halfbody 101a, 101b can be realized.
Rope sheave halfbody 101a, 101b have relative dip plane 101c, 101d respectively.Contact with rope sheave 101 within the scope of the roughly half cycle of the rope sheave 101 of governor rope 13 on the first half of rope sheave 101, and be supported on dip plane 101c, 101d.
From the state shown in Fig. 3 b, once make movable rope sheave halfbody 101b move, make it close to rope sheave halfbody 101a, thus shorten the interval G of rope sheave halfbody 101a, 101b, the tension force then given with tension wheel 14 resists, governor rope 13 slides and moves outside radial direction on dip plane 101c, 101d, and the be wrapping with radius R (bending spring that governor rope 13 on rope sheave 101 bending) of governor rope 13 on rope sheave 101 becomes large.On the other hand, from the state shown in Fig. 3 a, once make movable rope sheave halfbody 101b move, away from rope sheave halfbody 101a, thus expand interval G, the governor rope 13 that the wheel 14 that is then tensioned gives tension force slides on dip plane 101c, 101d and to radial direction medial movement, the radius R that is wrapping with of governor rope 13 diminishes.
When the moving velocity of governor rope 13 is identical, governor rope 13 on rope sheave 101 to be wrapping with radius R less, the rotative speed of rope sheave 101 becomes larger.Therefore, as previously mentioned, when hope makes the first rising supervelocity VU1 be greater than the first decline supervelocity VD1, when car 6 rises, constriction interval G also expansion is wrapping with radius R, also can expand interval G when the rising of car 6 and reduce to be wrapping with radius R.
In addition, in order to make the change quantitative change being wrapping with radius R large, needing the angle of inclination of dip plane 101c, 101d is become large (under the state of holding up), or making the mobile quantitative change of movable rope sheave halfbody 101b large.But, once make the angle of inclination of dip plane 101c, 101d become excessive, then can there is the situation that governor rope 13 pins (lock) between rope sheave halfbody 101a, 101b.In addition, the upper limit of the amount of movement of movable rope sheave halfbody 101b limits by the diameter of governor rope 13.
As shown in figures 4 a and 4b, the problems referred to above can be solved by the belt (belt) 200 sandwiching annular between governor rope 13 and rope sheave 101.As Fig. 5 roughly shown in, such belt 200 can be erected at be arranged at machine room 2 diapire 2a (the ceiling wall of hoistway 1) below the belt pulley (pulley) 202 that supports of supporting mass 201 and rope sheave 101 between.In this case, because the distance between belt pulley 202 and rope sheave 101 becomes smaller, so the tension change of the belt 200 caused in order to the movement absorbing movable rope sheave halfbody 101b, suitable belt tensioner (belttensioner) or even tension link (tensionadjuster) (not shown) also can be set.
As shown in figures 4 a and 4b, belt 200 is in substantially V-shaped (i.e. vee-belt (V-belt)), and the side of belt 200 is with the angular slope roughly the same with dip plane 101c, 101d.In order to governor rope 13 being maintained the middle position of the Width of belt 200, the central portion step-down of the Width of the outer peripheral face of belt 200.
From state shown in Fig. 4 b, once make movable rope sheave halfbody 101b move, close to rope sheave halfbody 101a, thus the interval G of constriction rope sheave halfbody 101a, 101b, then belt 200 slides and moves outside radial direction on dip plane 101c, 101d, and the radius R that is wrapping with of belt 200 becomes large, in addition, governor rope 13 is pressed towards belt 200, moves outside radial direction, and the radius R that is wrapping with of governor rope 13 becomes large.On the other hand, from state shown in Fig. 4 a, once make movable rope sheave halfbody 101b move, away from rope sheave halfbody 101a, thus expand interval G, then belt 200 slides on dip plane 101c, 101d, to radial direction medial movement, accompany therewith, governor rope 13 is also to radial direction medial movement, and the radius R that is wrapping with of governor rope 13 diminishes.Therefore, identical with the embodiment shown in Fig. 3 a with Fig. 3 b, the supervelocity of the starting benchmark that the quick-action that is limited is done can be altered to.
In the configuration example shown in Fig. 4 a and Fig. 4 b, belt 200 otherwise (in fact need safe edge to a certain degree apart from (safetymargin)) in the space come off between rope sheave halfbody 101a, 101b, just can expand the interval G of rope sheave halfbody 101a, 101b.That is, by using the belt 200 wider than the diameter width of governor rope 13, compared with not using the situation of belt 200, the adjustment width of interval G can be expanded, namely can expand the adjustment width that be wrapping with radius R of governor rope 13 on rope sheave 100.That is, the speed limit action that can be expanded into as velocity limiter 100 starts the setting range of the supervelocity of benchmark.
As making rope sheave halfbody 101a, the hydraulic drive mechanism of the relative movement generation of 101b, such as, can be the mechanism of the operating principle utilizing the operating principle of the rotating hydraulic cylinder (rotaryhydrauliccylinder) used in work mechanism or utilize the belt pulley (pulley) of the buncher (CVT) used in automobile or the travel mechanism of disk (disc).
Below, the configuration example of the hydraulic drive mechanism of the principle of rotating hydraulic cylinder is utilized with reference to Fig. 6 simple declaration.Fig. 6 is schematic diagram, even the parts formed in conjunction with multiple parts, as long as the action together of its combination, can add identical hatching (hatching) continuously and represent as parts.The parts shown in tetragonal case recording "×" mark in Fig. 6 are cylindrical bearing (rollerbearing), and the parts that stain represents are oil sealing (oilseal).
One end of the S. A. 301 of movable rope sheave halfbody 101b is supported in the right part 103a of support (frame) 103 via the axle supporting mass 302 of hollow.Axle supporting mass 302 itself is rotatable, and S. A. 301 can slide in the axial direction in axle supporting mass 302.S. A. 301 is provided with piston (piston) 303.Piston 303 is incorporated in cylinder (cylinder) 305 that turning unit 304 that the rope sheave halfbody 101a motionless with direction of principal axis rotate integrally is formed.The inside in the cavity of the central part of turning unit 304 is communicated with S. A. 301, and S. A. 301 can slide by turning unit 304 relatively.In addition, under the effect of stop pin (detentpin) 310, cannot there is relative rotation in S. A. 301 and turning unit 304.Replace stop pin 310, also can via spline (spline) or serration (serration) make S. A. 301 and turning unit 304 cannot occur relative rotate and in rotation axis direction, relative movement can occur combine.Turning unit 304 is with rotatable and cannot on the left part 103b that the mode of direction of principal axis movement is supported in support 103.Be formed with oily feed trough 306 in the all-round scope of the periphery of turning unit 304, the oil arranged from the parts be combined with support 103 supplies interface (fluidsupplyingport) 307 and supplies hydraulic oil to oily feed trough 306.Hydraulic oil is by the oil circuit 308 in the turning unit 304 that is communicated with oily feed trough 306, be fed in cylinder inner cavity (cylinderchamber) 309, thus, left side is mobile in the drawings for piston 303 and the movable rope sheave halfbody 101b that combines with it.The rightabout action of movable rope sheave halfbody 101b is realized by the elastic force of the retracing spring (returnspring) 311 arranged between rope sheave halfbody 101a, 101b and the tension force of governor rope 13, now, the hydraulic oil in cylinder inner cavity 309 returns to not shown trapped fuel place via not shown backflow oil circuit.
According to above-mentioned embodiment, can be adjusted to by the relative movement of rope sheave halfbody 101a, 101b the supervelocity that the quick-action that is limited makes to start benchmark.According to this formation, only a velocity limiter structure need be set.Therefore, it is possible to (compact) forms velocity limiter compactly, the supervelocity becoming velocity limiter action benchmark can be set as different values by it.
Above-mentioned embodiment proposes as an example, is not intended to the scope limiting utility model.The embodiment of these novelties can being implemented by other various ways, not departing from main scope of the present utility model, various omission, displacement, change can be carried out to it.These embodiments and be out of shape all be included in utility model scope and purport in, meanwhile, the scope of patent application comprises the utility model and equivalent scope thereof that claims records.
Reference numeral
13: governor rope;
100: rope sheave;
101a, 101b: rope sheave halfbody;
200: endless-belt.
Claims (5)
1. a velocity limiter, comprising: rope sheave, and it is wrapping with the governor rope moved together with the car of elevator, and rotates along with the movement of described governor rope; Velocity limiter weight, it is combined with described rope sheave, and the centnifugal force changed according to the rotative speed along with described rope sheave is subjected to displacement, wherein, when causing the displacement of described velocity limiter weight to exceed specified amount when described car speeding, speed limit action is carried out, it is characterized in that
Described rope sheave has the first rope sheave halfbody and the second rope sheave halfbody that are arranged side by side on the rotation axis direction of described rope sheave,
Be provided with driver train, it makes the relative movement on described rotation axis direction of the described first and second rope sheave halfbody, and the space between the described first and second rope sheave halfbody is changed,
By making the size in described space change, thus the be wrapping with radius of described governor rope on described rope sheave is changed, thereby, it is possible to the ratio of the moving velocity of the relative governor rope of the rotative speed changing described rope sheave.
2. velocity limiter according to claim 1, is characterized in that,
The peripheral part of described first rope sheave halfbody is provided with the first dip plane contacted with described governor rope, the peripheral part of described second rope sheave halfbody is provided with the second dip plane contacted with described governor rope, described first and second dip plane in the opposite direction surface thereof and toward each other, extend along with outside radial direction, both distances expand.
3. velocity limiter according to claim 1, is characterized in that,
The peripheral part of described first rope sheave halfbody is provided with the first dip plane, the peripheral part of described second rope sheave halfbody is provided with the second dip plane, the described first and second dip plane in the opposite direction surface thereof and toward each other, extending along with outside radial direction, both distances expand
Described velocity limiter is also provided with endless-belt, and it is wound around between described rope sheave and belt pulley, and described endless-belt is wound around on described rope sheave being clipped under the state between the described first and second dip plane,
Under the state of described governor rope on the outer peripheral face being supported in described endless-belt, be wound around on described rope sheave via described endless-belt.
4. velocity limiter according to claim 3, is characterized in that,
Described endless-belt is vee-belt.
5. the velocity limiter according to claim 3 or 4, is characterized in that,
In order to described governor rope being positioned the central portion of the Width of the outer peripheral face of described endless-belt, the central portion depression of the Width of the outer peripheral face of described endless-belt.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-132901 | 2014-06-27 | ||
| JP2014132901A JP5886372B2 (en) | 2014-06-27 | 2014-06-27 | Governor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204823557U true CN204823557U (en) | 2015-12-02 |
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ID=54681180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520398536.3U Active CN204823557U (en) | 2014-06-27 | 2015-06-10 | Speed limiter |
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| Country | Link |
|---|---|
| JP (1) | JP5886372B2 (en) |
| CN (1) | CN204823557U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108861944A (en) * | 2017-05-16 | 2018-11-23 | 杭州沪宁电梯部件股份有限公司 | Limiter of speed |
| CN116897135A (en) * | 2021-03-05 | 2023-10-17 | 三菱电机楼宇解决方案株式会社 | Elevator device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112573319B (en) * | 2019-09-29 | 2024-05-07 | 杭州沪宁电梯部件股份有限公司 | Rope wheel mechanism and speed limiter adopting same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2006038300A1 (en) * | 2004-10-07 | 2008-05-15 | 三菱電機株式会社 | Elevator equipment |
| JP5850754B2 (en) * | 2012-01-24 | 2016-02-03 | 株式会社日立製作所 | Speed governor and elevator device equipped with the speed governor |
| CN104583108B (en) * | 2012-08-28 | 2016-08-24 | 株式会社日立制作所 | Lift facility |
-
2014
- 2014-06-27 JP JP2014132901A patent/JP5886372B2/en active Active
-
2015
- 2015-06-10 CN CN201520398536.3U patent/CN204823557U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108861944A (en) * | 2017-05-16 | 2018-11-23 | 杭州沪宁电梯部件股份有限公司 | Limiter of speed |
| CN108861944B (en) * | 2017-05-16 | 2023-12-19 | 杭州沪宁电梯部件股份有限公司 | speed limiter |
| CN116897135A (en) * | 2021-03-05 | 2023-10-17 | 三菱电机楼宇解决方案株式会社 | Elevator device |
| CN116897135B (en) * | 2021-03-05 | 2024-06-07 | 三菱电机楼宇解决方案株式会社 | Elevator device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016011182A (en) | 2016-01-21 |
| JP5886372B2 (en) | 2016-03-16 |
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