CN114772409A

CN114772409A - Track speed limiter

Info

Publication number: CN114772409A
Application number: CN202210287073.8A
Authority: CN
Inventors: 黄瑞宁; 闫风华
Original assignee: Beijing Qinghua Dingde Technology Development Co ltd; Zhongxin Guoci Testing Co ltd
Current assignee: Beijing Qinghua Dingde Technology Development Co ltd; Zhongxin Guoci Testing Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-07-22
Anticipated expiration: 2042-03-22
Also published as: CN114772409B

Abstract

The utility model relates to a exempt from to climb the ware field, particularly relate to a track overspeed governor. The track governor includes an input having a first direction of rotation about a first axis; a centrifugal device in powered connection with the input, having a second direction of rotation about a second axis, the second direction of rotation being associated with the first direction of rotation; characterized in that the centrifuge device comprises: a centrifugal block pivotally disposed on the centrifugal device to allow a free end of the centrifugal block to perform a centrifugal motion when the centrifugal device is rotated; the elastic piece is connected with the centrifugal block to apply elastic resistance for preventing the centrifugal motion; and the sliding assembly is arranged on the centrifugal block and comprises a sliding rail and a sliding block, wherein the sliding rail extends from the pivot to the free end so as to allow the sliding block to move from the pivot to the free end when the centrifugal device rotates. The speed of the climbing-free device is controlled more reliably and quickly through the arrangement of the track speed limiter.

Description

Track speed limiter

Technical Field

The utility model relates to a exempt from to climb the ware field, particularly relate to a track overspeed governor.

Background

On a climbing-free device for a wind power tower cylinder lifter, a track speed limiting device is generally arranged to prevent casualties caused by the out-of-control speed of the climbing-free device.

In the prior art, the swing arm anti-tilting safety locking device and the centrifugal triggering safety locking device are widely applied, and the working principle is that the speed limiter can automatically and quickly lock a steel wire rope when the descending speed is too high due to the breakage of a working steel wire rope, the inclination of a platform and the like, so that the safety of operating personnel is ensured. However, the steel wire rope is worn along with the increase of the service life, if the steel wire rope is not maintained in place, the service life is short, and if the steel wire rope is not checked in time, serious potential safety hazards can be generated.

Disclosure of Invention

The present disclosure is made based on the above-mentioned needs of the prior art, and an object of the present disclosure is to provide a track speed limiter to control the speed of a climbing-free device more reliably and quickly.

In order to solve the above problem, the technical solution provided by the present disclosure includes:

there is provided a track governor comprising: an input having a first rotational direction about a first axis; a centrifugal device in powered connection with the input, having a second direction of rotation about a second axis, the second direction of rotation being associated with the first direction of rotation; the centrifugal device includes: a centrifugal block pivotally disposed on the centrifugal device to allow a free end of the centrifugal block to perform a centrifugal motion when the centrifugal device is rotated; the elastic piece is connected with the centrifugal block to apply elastic resistance for preventing the centrifugal motion; and the sliding assembly is arranged on the centrifugal block and comprises a sliding rail and a sliding block, wherein the sliding rail extends from the pivot to the free end so as to allow the sliding block to move from the pivot to the free end when the centrifugal device rotates.

The arrangement is such that when the centrifugal block performs centrifugal motion, the slide block can move from the pivot end to the free end along the slide rail so as to accelerate the speed of the free end moving in the direction away from the pivot end; and the centrifugal force borne by the free end is increased to a certain extent so as to overcome elastic resistance, so that the effects of limiting the descending speed of the climbing-free device and ensuring the personal safety of workers are achieved.

Preferably, the track governor further comprises an output having a third direction of rotation about a third axis; the output end is arranged opposite to the centrifugal block and is meshed with the centrifugal block when the centrifugal block moves to a first position in a centrifugal mode, and therefore the output end is driven to rotate by a first angle.

Preferably, the first shaft and the second shaft are the same shaft.

So set up and to save space to a certain extent, improve space utilization and energy transmission efficiency.

The centrifugal block drives the output end to rotate around the third shaft, so that the speed limiting effect of the track speed limiter is achieved.

Preferably, a groove is arranged at the bottom of the centrifugal block, and the sliding block is at least partially arranged in the groove.

The groove at the bottom of the centrifugal block can play a role in guiding the sliding block, so that the sliding block is prevented from shaking in the movement, the sliding smoothness is ensured, and the force loss is reduced.

Preferably, a first opening extending along the direction of the slide rail is arranged at the free end of the centrifugal block, the slide rail is arranged in the first opening, a first plate is arranged outside the free end, and the first plate is matched with the output end.

The first plate is arranged on one side of the free end, when the centrifugal force applied to the free end is larger than the resistance of the spring, the free end is thrown out, and the first plate and the output end are matched to drive the output end.

Preferably, a free end of said centrifugal block is adjacent to a pivot end of another said centrifugal block; two ends of the elastic piece are respectively connected with the free end of the centrifugal block and the pivot end of the other centrifugal block.

The centrifugal device can have uniform centrifugal force so as to uniformly throw the free end of the centrifugal block out, thereby providing reliable and stable torque to drive the output end to act. The elastic piece is arranged to be capable of resisting against the centrifugal force, so that certain degree of freedom is provided for speed limiting, and the phenomenon that the climbing-free device cannot work due to over sensitivity is prevented.

Preferably, the pivotally arranged on the centrifugal device comprises: the rail speed limiter further comprises a first connecting piece, the first connecting piece comprises a connecting plate, the connecting plate is in pivot connection with the centrifugal block through a fixing shaft fixedly arranged on the connecting plate, and the centrifugal block has a rotating direction around the fixing shaft.

The centrifugal device is provided with a moving space through the first connecting piece, and the degree of freedom for the centrifugal block to pivot is ensured.

Preferably, the first connecting piece further comprises a connecting column, the connecting piece comprises a first connecting plate and a second connecting plate which are arranged up and down, and the connecting column is arranged between the first connecting plate and the second connecting plate to connect the first connecting plate and the second connecting plate; the connecting column is provided with a through hole extending along the direction of the first shaft, and the first shaft penetrates through the through hole so that the first connecting piece has a first rotating direction around the first shaft.

The first connecting piece can rotate along with the first shaft by the arrangement, so that the centrifugal block is driven to rotate, and power is provided for rotation of the centrifugal block.

Preferably, the output end comprises a first wheel, the centrifugal device is arranged inside the first wheel, teeth are arranged on the inner side of the first wheel, the teeth are matched with the first plate, and when the sliding block moves to the second position, the first plate is meshed with the teeth.

When the sliding block slides to a second position, the first plate on the outer side of the centrifugal block is meshed with the teeth to drive the output end to rotate by a first angle, and then the speed of the climbing-free device is limited.

Preferably, the output end has a first rod extending in a direction perpendicular to the direction in which the first shaft extends; the first lever is coupled to the first wheel, and the first plate drives the first lever to rotate via the first wheel when the first plate engages the teeth.

So set up and make when centrifugal force that the centrifugal piece received is greater than the elastic resistance, the centrifugal piece is in free end one side sets up the first board with the tooth meshing, in order to drive the wheel rotates, and by the wheel drives first pole rotates, and then realizes the speed limit effect to exempting from to climb the ware.

Compared with the prior art, the centrifugal block is provided with the sliding assembly to accelerate the centrifugal block to be opened quickly when the centrifugal force is larger than the spring resistance, so that the speed limiting function of the track is realized quickly; in addition, the centrifugal block is arranged on a first connecting piece which is driven by the first shaft to rotate so as to obtain rotating power; in addition, the centrifugal block is connected with the output end through the first wheel, and when the centrifugal block provides torque for the first wheel, the output end is enabled to act to limit the speed of the track.

Drawings

In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present specification, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic perspective view of a partial track governor of the present disclosure;

fig. 2 is a schematic perspective view of yet another portion of a track governor of the present disclosure;

fig. 3 is a schematic perspective view of another angular partial track governor of the present disclosure;

fig. 4 is a schematic perspective view of a partial track governor of yet another angle of the present disclosure;

fig. 5 is an overall perspective structural view of the track governor of the present disclosure;

FIG. 6 is a schematic perspective view of a base plate of the present disclosure;

fig. 7 is a perspective view of a first connector of the present disclosure;

FIG. 8 is a schematic perspective view of a centrifugal block according to the present disclosure;

fig. 9 is a schematic diagram of a rail governor detonation configuration of the present disclosure.

Reference numerals:

1. a base plate; 2. a housing; 201. a first surface; 3. a first bearing; 4. a second bearing; 5. a second wheel; 6. a first shaft; 7. a first connecting member; 8. a first connecting plate; 9. a second connecting plate; 10. connecting columns; 11. perforating; 12. a second opening; 13. a fixed shaft; 15. a centrifugal block; 16. a third opening; 17. a pivot end; 18. a free end; 19. a slide rail; 20. a slider; 21. a groove; 22. a first opening; 23. a first plate; 24. an elastic member; 26. a second connecting member; 27. a first lever; 28. a first wheel; 29. teeth; 29A, first side; 29B, second side; 30. a cover; 31. and a third axis.

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 some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

In the description of the embodiments of the present disclosure, it should be noted that, unless otherwise explicitly stated or limited, the term "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection, which may be a mechanical connection, an electrical connection, which may be a direct connection, or an indirect connection via an intermediate medium. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

The terms "top," "bottom," "above … …," "below," and "on … …" as used throughout the description are relative to the position of components of the device, such as the relative position of the top and bottom substrates inside the device. It will be appreciated that the devices are multifunctional, independent of their orientation in space.

For the purpose of facilitating understanding of the embodiments of the present application, the following description will be made in terms of specific embodiments with reference to the accompanying drawings, which are not intended to limit the embodiments of the present application.

The embodiment provides a track speed limiter, which refers to fig. 1-9.

The track speed limiter comprises a shell, an input end, a driving mechanism and an output end.

The housing comprises a bottom plate 1 and a shell 2, wherein the bottom plate 1 is arranged opposite to the shell 2, and referring to fig. 5 and 6, the bottom plate 1 is in a plate shape, the shell 2 is in a cover shape to cover the bottom plate 1, and the bottom plate 1 and the shell 2 are mutually fixed to form a chamber. An opening is provided in the center of the base plate 1, and likewise, an opening is provided in the center of the first surface 201 of the housing 2 for the internal components to protrude. The base plate 1 and the housing 2 co-act to achieve a substantially closed structure of the rail governor and provide considerable strength and space for stable operation of the components disposed within.

Furthermore, a first bearing 3 is arranged in an opening arranged on the base plate 1, the outer side surface of the first bearing 3 is fixed with the inner side surface of the opening of the base plate 1, and the inner side surface and the outer side surface of the first bearing 3 can rotate relatively, so that when a certain shaft passes through the first bearing 3 and rotates, the inner side surface of the first bearing 3 rotates along with the rotation of the shaft, and the outer side surface of the first bearing 3 does not rotate along with the rotation of the shaft, so that the base plate 1 cannot be driven to rotate along with the shaft passing through the first bearing 3 when the shaft rotates.

Likewise, the opening provided in the first surface 201 of the housing 2 is also provided internally with a second bearing 4, with the same effect as the first bearing 3 provided inside the opening of the base plate 1, so that when the shaft passing through the second bearing 4 rotates, the housing 2 does not rotate with its rotation. Thereby causing the housing to remain stationary to reduce wear on the rail governor.

An input comprising a second wheel 5 and a first shaft 6.

A through hole is formed in the center of the second wheel 5, and the first shaft 6 penetrates through the hole in the second wheel 5 and is fixedly connected with the second wheel 5 relatively. Further, the second wheel 5 is attached to the guide rail, when the crawler moves downward along the guide rail, the second wheel 5 rotates along the guide rail, so that the first shaft 6 passing through the middle of the second wheel 5 rotates along with the rotation of the second wheel 5. Still further, the second wheel 5 has a first direction of rotation around the first shaft 6.

The second wheel 5 is arranged below the base plate 1, and a first shaft 6 passing through the second wheel 5 continues through an opening arranged in the base plate 1. Further, the first shaft 6 passes through the first bearing 3, when the first shaft 6 rotates, the inner side of the first bearing 3 rotates following the first shaft 6 to maintain the degree of freedom of rotation of the first shaft 6, and the outer side of the first bearing 3 is fixed relative to the base plate 1. By such arrangement, the fixing of the rail speed limiter and the creeper-free device is facilitated, so that under the condition that the first shaft 6 keeps rotating, the base plate 1 is fixed and does not generate large resistance to the rotation of the first shaft 6.

A drive mechanism comprising a first connecting piece 7 and a centrifugal device.

Referring to fig. 7, the first connecting member 7 includes a connecting plate and a connecting column 10, the connecting plate includes a first connecting plate 8 and a second connecting plate 9 which are arranged relatively downward, and the first connecting plate 8 and the second connecting plate 9 are connected by the connecting column 10. The first connecting plate 8 and the second connecting plate 9 are identical in size and shape, and planes of the first connecting plate and the second connecting plate are parallel to each other. The connecting column 10 is perpendicular to the plane of the first connecting plate 8 and the second connecting plate 9, and connects the center of the first connecting plate 8 and the center of the second connecting plate 9.

A through hole 11 penetrating through the upper connecting plate and the lower connecting plate is formed in the connecting column 10, and the through hole 11 is matched with the first shaft 6 so that the first shaft 6 extending into the shell can penetrate through the through hole 11. Correspondingly, when the first shaft 6 rotates, the first connecting member 7 will rotate together with the first shaft 6.

Referring to fig. 4 and 8, the connecting plates are provided with second openings 12 distributed around the through hole 11, and the adjacent second openings 12 are spaced by the same distance, and further, both connecting plates have the same structure, that is, the second openings 12 of both connecting plates correspond. Still further, the first connecting piece 7 further comprises a fixing shaft 13, two ends of the fixing shaft 13 are respectively and fixedly connected with the two second openings 12 arranged up and down, and the extending direction of the fixing shaft 13 is the same as the extending direction of the connecting column 10.

In one embodiment of this embodiment, two second openings 12 are provided symmetrically about the through hole 11 in each of the first and second connection plates 8, 9. Correspondingly, the first connecting element 7 comprises two fixing shafts 13, one end of each fixing shaft 13 is fixed to one of the second openings 12 of the upper first connecting plate 8, the other end of each fixing shaft 13 is fixed to one of the second openings 12 of the lower second connecting plate 9, and the fixing shafts 13 are perpendicular to the connecting plates.

A centrifugal device, in powered connection with the input, having a second direction of rotation about a second axis, the second direction of rotation being associated with the first direction of rotation. Preferably, the first shaft 6 and the second shaft are the same shaft, so that force transmission is facilitated, force waste is avoided, and the structure can be effectively simplified.

Referring to fig. 2 and 3, the centrifugal device is disposed in the space between the two connecting plates, the centrifugal device includes a centrifugal block 15, the centrifugal block 15 has two ends, a third hole 16 is disposed on the centrifugal block 15 near one end, the third hole 16 extends in a direction perpendicular to the connecting plates, the centrifugal block 15 can pivotally pass through a fixed shaft 13 through the third hole 16, the end is a pivot end 17, and the fixed shaft 13 generates relative rotation in the third hole 16.

The other end of the centrifugal block 15 is a free end 18, and when the rotation speed of the first shaft 6 exceeds a first value, the free end 18 moves away from the pivot end 17 due to the action of centrifugal force.

The centrifugal block 15 further comprises a sliding assembly, and the centrifugal block 15 has an accommodating space so that the sliding assembly can be placed in the accommodating space. The sliding assembly comprises a sliding rail 19 and a sliding block 20, the sliding rail 19 extends from the pivot end 17 to the free end 18, an opening is arranged on the sliding block 20, the sliding rail 19 passes through the opening to provide a sliding path for the sliding block 20, and the sliding block 20 can slide on the sliding rail 19 relatively. In order to enable the sliding block 20 to slide along the direction in which the sliding rail 19 extends, without rotating relative to the sliding rail 19, a groove 21 is provided at the bottom of the centrifugal block 15, the groove 21 having the same extending direction as the sliding rail 19, and the groove 21 is adapted to the sliding block 20. Under the combined action of the slide rail 19 and the groove 21, when the sliding block 20 slides along the extending direction provided by the slide rail and the groove, relative rotation and shake are not generated, so that smooth sliding is ensured. The slider 20 can provide assistance in the rapid opening of the centrifugal mass 15 when the creeper is lowered too quickly, thereby allowing the track governor to act to lock the creeper.

Further, when the rotational speed of the first shaft 6 exceeds a first value, the slider 20 slides towards the free end 18, so that the free end 18 is subjected to a greater centrifugal force and opens faster with respect to the pivot end 17.

In order to firmly arrange the sliding assembly in the centrifugal block 15, the pivot end 17 and the free end 18 of the centrifugal block 15 are provided with openings along the same extending direction as the extending direction of the slide rail 19, the opening arranged at the free end 18 is a first opening 22, a first plate 23 is arranged at the outer side of the free end 18, the first plate 23 can block the first opening 22, the area of the first plate 23 is larger than that of the free end 18, and the larger part is engaged with an output end when the centrifugal motion is performed. This arrangement prevents, on the one hand, the centrifugal mass 15 from being thrown out by the centrifugal force acting on its inner slide 20 during the centrifugal movement, and on the other hand, the first plate 23 increases the weight of the free end 18, so that the free end 18 of the centrifugal mass 15 is moved more easily and more quickly away from the pivot end 17.

A plurality of centrifugal blocks 15 can be arranged on the first connecting piece 7, and the arrangement of the centrifugal blocks 15 is as follows: the pivot end 17 of one of the eccentric blocks 15 is adjacent to the free end 18 of one of the other eccentric blocks 15. In one embodiment of this embodiment, the centrifugal device comprises two centrifugal blocks 15, namely a first centrifugal block and a second centrifugal block, wherein the pivot end 17 of the first centrifugal block is arranged adjacent to the free end 18 of the second centrifugal block, and the free end 18 of the first centrifugal block is arranged adjacent to the pivot end 17 of the second centrifugal block.

The centrifugal device further comprises an elastic member 24, and two ends of the elastic member 24 are respectively connected with the pivot end 17 and the free end 18 of two adjacent centrifugal blocks 15 to provide certain elastic resistance. In one embodiment of this embodiment, the centrifugal device includes two elastic members 24, which are a first elastic member and a second elastic member, respectively, two ends of the first elastic member are respectively connected to the pivot end 17 of the first centrifugal block and the free end 18 of the second centrifugal block, and two ends of the second elastic member are respectively connected to the free end 18 of the first centrifugal block and the pivot end 17 of the second centrifugal block. Specifically, when the rotation speed of the first shaft 6 reaches a first value, the free end 18 of the centrifugal block 15 is subjected to centrifugal force thrown outward and elastic resistance provided by the elastic member 24. The elastic resistance provides a force against the centrifugal mass 15 at its free end 18, which is directed in the opposite direction to the elastic resistance. When the elastic resistance provided by the elastic member 24 can counteract the centrifugal force, the free end 18 of the centrifugal block 15 will continue to move according to the original moving state, and when the maximum elastic resistance provided by the elastic member 24 still cannot counteract the centrifugal force, the free end 18 of the centrifugal block 15 will move away from the pivot end 17.

An output end comprising a second connector 26 and a first rod 27. The output is connected to the housing 2 and the second connection 26 comprises a first wheel 28 and a cap 30.

A first wheel 28, said first wheel 28 being provided with teeth 29 inside. Furthermore, the tooth 29 comprises a first edge 29A and a second edge 29B, the second edge 29B being perpendicular to a tangent of the wheel at the location of the tooth, so that the wheel is more securely and conveniently engaged with the free end 18 of the eccentric mass 15.

Furthermore, the wheel is arranged outside the first connecting part 7 and in a second position of the centrifugal mass 15, which does not exceed the top surface of the centrifugal mass 15 nor the bottom surface of the centrifugal mass 15, i.e. in a position where the wheel is arranged on the side surface of the centrifugal mass 15, so as to be thrown out when the free end 18 of the centrifugal mass 15 is subjected to a certain amount of centrifugal force, the centrifugal mass 15 being in a first position, in which the first plate 23 engages with the teeth 29. Specifically, the first plate 23 contacts the second edge 29B and drives the wheel to rotate, and the eccentric mass 15 provides the first wheel 28 with a torque for its rotation.

The first wheel 28 further comprises a shield 30, one end of the shield 30 being connected to the first wheel 28 and the other end thereof being connected to the third shaft 31. The cover 30 is arranged on the wheel, the third shaft 31 is arranged on the cover 30, the wheel is fixedly connected with the cover 30, and the cover 30 is fixedly connected with the third shaft 31. The line connecting the position of the center of the wheel and the position of the center of the cover 30 coincides with the third shaft 31. When the centrifugal block 15 drives the wheel to rotate, the wheel rotates around the straight line of the third shaft 31, and the third shaft 31 also rotates around the central line thereof. The height of the housing 2 is greater than the height of the shroud 30 so that the wheel overhangs the centrifugal mass 15. The housing 2 has a height greater than the height of the first wheel 28 so that the wheel overhangs the centrifugal mass 15.

A first rod 27, wherein the first rod 27 is fixedly connected with the third shaft 31 of the second connecting member 26 and extends along a direction perpendicular to the extending direction of the third shaft 31. When the third shaft 31 is rotated, the first lever 27 rotates with its connection point with the third shaft 31 as a center and its own length as a radius.

The third shaft 31 protrudes out of the housing 2 through an opening portion provided on the first surface 201 of the housing 2, and the third shaft 31 and the opening of the first surface 201 are connected through the second bearing 4. Specifically, when the third shaft 31 rotates, the housing 2 does not rotate with its rotation, and remains fixed to the base plate 1. The first lever 27 is arranged outside the housing 2 and the track speed limiter achieves speed limitation of the track by rotation of the first lever 27 about the third shaft 31.

The track governor only functions during descent of the creeper. The input also has a fourth direction of rotation about the first axis 6, the first direction of rotation being opposite to the fourth direction of rotation. When the climber ascends along the track, the input end rotates in the fourth rotation direction around the first shaft 6, at this time, the slide block 20 inside the centrifugal block 15 is placed at the pivot end 17, the centrifugal block 15 arranged on the first connecting member 7 rotates with the ascending speed of the climber, and when the climber ascends at a normal speed, the centrifugal block 15 is balanced and does not engage with the wheel; when the creeper is lifted at a high speed, the free end 18 of the centrifugal block 15 may be subjected to a centripetal force approaching the pivot end 17, and when the centripetal force is the same as the spring resistance, the centrifugal block 15 is installed to rotate in the original movement direction; when the centrifugal force is greater than the spring resistance, the free end 18 of the centrifugal mass 15 will move towards its pivot end 17, at which point the centrifugal mass 15 will not engage the wheel any more. That is, during the ascent of the creeper-less device, the centrifugal block 15 is not engaged with the teeth 29 provided on the wheel regardless of the force applied thereto, and the first lever 27 does not generate an action to prevent the creeper-less device from continuing to operate regardless of the value of the ascent speed of the creeper-less device.

When the climbing-free device descends, the climbing-free device is divided into two situations, namely, when the climbing-free device descends at a normal running speed, and when the climbing-free device is out of control and descends at a faster speed. When the crawler-free device descends with normal operating speed, the second wheel 5 is through with orbital friction is in order to drive the first axle 6 rotates, because the first axle 6 with first connecting piece 7 fixed connection makes first connecting piece 7 centers on the first axle 6 rotates to the drive sets up centrifugal block 15 on the first connecting piece 7, at this moment, centrifugal block 15 atress is balanced, and the centrifugal force that its free end 18 received is the same with the centripetal force, perhaps the centrifugal force that its free end 18 received is the same with the sum of the centripetal force and the spring resistance that receives rather than receiving, makes when free end 18 rotates, not with tooth 29 that set up on the wheel meshes mutually, the wheel does not rotate, first pole 27 does not rotate. When the climbing device is out of control and descends at a faster speed, the second wheel 5 rotates at a speed higher than normal rotation speed, so as to drive the centrifugal block 15 to rotate through the first shaft 6, the slide block 20 in the centrifugal block 15 is subjected to centrifugal force and moves from the pivot end 17 to the free end 18, so that the free end 18 is subjected to larger centrifugal force to exceed the elastic resistance provided by the spring, and further, in the case that the free end 18 is not subjected to force balance, the free end 18 will move in a direction away from the pivot end 17, the free end 18 is thrown away, the slide block 20 moves to the second position, the centrifugal block 15 moves to the first position to engage with the teeth 29 of the first wheel 28, so as to provide torque for the wheel to drive the wheel to rotate, so that the first rod 27 rotates by a first angle, so as to realize speed limitation of the climbing device through cooperation with a track, further ensuring the safety of workers.

The above-mentioned embodiments, objects, technical solutions and advantages of the present application are described in further detail, it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present application, and are not intended to limit the scope of the present application, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present application should be included in the scope of the present application.

Claims

1. A track governor comprising:

an input having a first direction of rotation about a first axis;

a centrifugal device in power connection with the input, having a second direction of rotation about a second axis, the second direction of rotation being associated with the first direction of rotation;

characterized in that the centrifuge device comprises:

a centrifugal block pivotally disposed on the centrifugal device to allow a free end of the centrifugal block to perform a centrifugal motion when the centrifugal device is rotated; an elastic member connected to the centrifugal mass to apply an elastic resistance against the centrifugal movement; and the sliding assembly is arranged on the centrifugal block and comprises a sliding rail and a sliding block, the sliding rail extends from the pivot to the free end so as to allow the sliding block to move from the pivot to the free end when the centrifugal device rotates.

2. The track governor of claim 1,

the track governor further includes an output having a third direction of rotation about a third axis;

the output end is arranged opposite to the centrifugal block and is meshed with the centrifugal block when the centrifugal block moves to a first position in a centrifugal mode, and therefore the output end is driven to rotate by a first angle.

3. The track governor of claim 1,

the first shaft and the second shaft are the same shaft.

4. The track governor of claim 1,

the bottom of the centrifugal block is provided with a groove 21, and at least part of the slide block is arranged in the groove.

5. The track governor of claim 2,

the free end of the centrifugal block is provided with a first opening extending along the direction of the slide rail, the slide rail is arranged in the first opening,

the outside of the free end is provided with a first plate, and the first plate is matched with the output end.

6. The track governor of claim 1,

the free end of said centrifugal block is adjacent to the pivot end of another said centrifugal block;

two ends of the elastic piece are respectively connected with the free end of the centrifugal block and the pivot end of the other centrifugal block.

7. The track governor of claim 1, wherein the pivotal arrangement on the centrifugal device comprises:

the track speed limiter further comprises a first connecting piece, the first connecting piece comprises a connecting plate, the connecting plate is in pivot connection with the centrifugal block through a fixing shaft fixedly arranged on the connecting plate, and the centrifugal block has a rotating direction around the fixing shaft.

8. The track governor of claim 7,

the first connecting piece further comprises a connecting column, the connecting piece comprises a first connecting plate and a second connecting plate which are arranged up and down, and the connecting column is arranged between the first connecting plate and the second connecting plate to connect the first connecting plate and the second connecting plate; the connecting column is provided with a through hole extending along the direction of the first shaft, and the first shaft penetrates through the through hole so that the first connecting piece has a first rotating direction around the first shaft.

9. A track governor according to claim 5,

the output end comprises a first wheel which is provided with a first wheel,

the centrifugal device is arranged in the first wheel, teeth are arranged on the inner side of the first wheel and matched with the first plate, and when the sliding block moves to the second position, the first plate is meshed with the teeth.

10. The track governor of claim 9,

the output end is provided with a first rod which extends along the direction vertical to the extending direction of the first shaft;

the first lever is coupled to the first wheel, and the first plate drives the first lever to rotate via the first wheel when the first plate engages the teeth.