CN217732390U

CN217732390U - Sliding type traction sheave locking device

Info

Publication number: CN217732390U
Application number: CN202221342506.7U
Authority: CN
Inventors: 向帆; 邓鹏九; 欧阳瑞泽; 魏启明; 李家胜
Original assignee: Hunan Wanshida Elevator Air Conditioning Engineering Co ltd
Current assignee: Hunan Wanshida Elevator Air Conditioning Engineering Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-11-04
Anticipated expiration: 2032-05-31

Abstract

The application relates to the technical field of traction sheaves, and particularly discloses a sliding type traction sheave locking device which comprises a traction sheave and a mounting seat, wherein the mounting seat is used for being connected with a traction machine, a plurality of rope grooves are formed in the traction sheave, a locking seat is arranged on the mounting seat in a sliding manner, a locking part is arranged on one side, close to the traction sheave, of the locking seat, and a speed measuring wheel used for monitoring the running speed of the traction sheave is further arranged on the mounting seat; the locking device is characterized in that a limiting component used for limiting the locking seat to slide towards the direction close to or far away from the traction sheave is arranged on the mounting seat, and an actuating component used for actuating the locking seat to move is further arranged on the mounting seat. The application has the effect of strengthening the braking of the traction sheave.

Description

Sliding type traction sheave locking device

Technical Field

The application relates to the technical field of traction sheaves, in particular to a sliding type traction sheave locking device.

Background

The traction sheave is a rope sheave on the traction machine, and is also called a traction rope sheave or a driving rope sheave; the elevator is a device for transmitting traction power, and the power is transmitted by using the friction force between a traction rope and a rope groove on the edge of a traction sheave.

When the traction sheave works, the traction sheave bears all dynamic and static loads of the lift car, the load capacity, the counterweight and other devices, and when the traction sheave rotates, the power is transmitted between the wall of the rope groove of the traction sheave and the traction rope through friction force, so that the traction rope correspondingly moves, and the effect of driving the elevator to lift can be achieved.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: because the movement and the locking of the traction rope are completely controlled by the friction force between the traction rope and the traction sheave, when a maintainer overhauls the traction sheave and ignores the dirt on the surface of the rope groove wall due to overhauling negligence, the friction force between the rope groove wall and the traction rope can be reduced due to the dirt, and even the traction rope in motion can not be braked by the traction sheave.

SUMMERY OF THE UTILITY MODEL

In order to improve and cause the problem that the towline can't be braked by the driving sheave because of the unexpected frictional force that leads to between the cell wall of towline and grooving, this application provides a slidingtype driving sheave locking device.

The application provides a slidingtype traction sheave locking device adopts following technical scheme:

a sliding type traction sheave locking device comprises a traction sheave and a mounting seat used for being connected with a traction machine, wherein a plurality of rope grooves are formed in the traction sheave, a locking seat is arranged on the mounting seat in a sliding mode, a locking part is arranged on one side, close to the traction sheave, of the locking seat, and a speed measuring wheel used for monitoring the running speed of the traction sheave is further arranged on the mounting seat; the locking device is characterized in that a limiting component used for limiting the locking seat to slide towards the direction close to or far away from the traction sheave is arranged on the mounting seat, and an actuating component used for actuating the locking seat to move is further arranged on the mounting seat.

Through adopting above-mentioned technical scheme, when the measuring sheave detects the functioning speed of towline when too fast, because the restriction subassembly limits the locking seat and can only move to the direction of being close to or keeping away from the towline, order about the subassembly and order about the locking seat and move to the direction of being close to the towline, make the retaining member reach the position of towline to make the towline braking through the retaining member, and then avoid because of the phenomenon that frictional force descends between grooving and the towline, lead to the unable braking of towline.

Optionally, the locking member is a supporting block corresponding to the rope groove one to one, the supporting block is fixedly connected to one side of the locking seat close to the traction sheave, and one side of the supporting block close to the traction sheave is provided with a cambered surface matched with the peripheral side of the cambered surface of the traction sheave.

By adopting the technical scheme, in the process of braking the traction rope, the locking seat moves towards the direction close to the traction sheave until the abutting block abuts against the traction rope on the traction sheave, and the abutting block extrudes the traction rope to the bottom wall of the rope groove, so that the pressure on the traction rope is increased; meanwhile, the abutting block abuts against the hoisting rope, the contact area between the abutting block and the hoisting rope is increased by the cambered surface of the abutting block, the friction force borne by the hoisting rope is further increased, and the hoisting rope is effectively braked.

Optionally, an arc-shaped groove not smaller than the diameter of the traction rope is formed in one side, close to the traction sheave, of the abutting block.

By adopting the technical scheme, when the abutting block abuts against the hoisting rope, the hoisting rope is in contact with the groove wall of the arc-shaped groove, and meanwhile, because the contact surface between the groove wall of the arc-shaped groove and the hoisting rope is large, the friction force of the arc-shaped groove on the hoisting rope is further improved, and further the time consumed for complete braking of the hoisting rope is shortened.

Optionally, a wear-resistant layer is arranged on one side, close to the locking seat, of the abutting block.

Through adopting above-mentioned technical scheme, the towline that moves at a high speed can produce great wearing and tearing to the object rather than offseting when being braked, and the wearing layer can improve comparatively stable frictional force when offseting with the towline, still has longer life simultaneously, also can maintain comparatively stable state when making the wearing layer receive the frictional force that the time is longer, the dynamics is great.

Optionally, the restriction subassembly includes the rigid coupling and is in stand, rigid coupling on the mount pad are in a plurality of spacing on the stand, seted up on the mount pad with spacing sliding adaptation just follows the spacing groove that the horizontal direction extends.

Through adopting above-mentioned technical scheme, order about the subassembly and order about when supporting tight seat and remove, support the direction that the spacing groove restriction on the tight seat removed, support tight seat promptly and can only remove along the extending direction of spacing groove.

Optionally, the driving assembly includes a screw threaded through one side of the locking seat away from the traction sheave and a first driving member driving the screw to rotate.

By adopting the technical scheme, the first driving piece drives the screw rod to rotate, the rotating screw rod can drive the locking seat to move towards the direction close to the traction sheave, the abutting block reaches the position of the traction rope and abuts against the traction rope, the pressure applied by the abutting block to the traction rope is larger, and the locking effect is better.

Optionally, order about the subassembly and include the rigid coupling and be in bracing piece on the mount pad, articulate lever and setting on the bracing piece are in lever one end just is used for the drive lever pivoted second driving piece, the lever is close to the one end of locking seat articulates there is limit slide, locking seat on seted up with the spacing spout of limit slide restriction adaptation, just the extending direction and the vertical direction of spout parallel.

Through adopting above-mentioned technical scheme, the second driving piece drive lever uses the articulated axis of bracing piece and lever to rotate as the axle, because spacing spout restriction spacing slider can only move along vertical direction, and then makes spacing slider promote the locking seat and move to the direction that is close to the driving sheave, can make the towline continuously receive the extrusion of support piece.

Optionally, a distance between the lever and the locking seat is smaller than a distance between the lever and the second driving member.

Through adopting above-mentioned technical scheme, the lever uses the bracing piece as the boundary, and the one end that is close to the locking seat is the stub, the other end is the long end, and then makes the second driving piece promote with less thrust.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the first driving piece drives the screw rod to rotate, the rotating screw rod can drive the locking seat to move towards the direction close to the traction sheave, the abutting block reaches the position of the traction rope and abuts against the traction rope, the pressure applied by the abutting block to the traction rope is large, and the locking effect is good;

2. the second driving piece drives the lever to rotate by taking the hinge axis of the supporting rod and the lever as a shaft, and the limiting sliding block is limited by the limiting sliding groove to move only in the vertical direction, so that the limiting sliding block pushes the locking seat to move in the direction close to the traction sheave, and the traction rope can be continuously extruded by the abutting block;

3. when the abutting block abuts against the hoisting rope, the hoisting rope is in contact with the groove wall of the arc-shaped groove, meanwhile, the contact surface between the groove wall of the arc-shaped groove and the hoisting rope is large, so that the friction force of the arc-shaped groove on the hoisting rope is further improved, and the time consumed for complete braking of the hoisting rope is further shortened.

Drawings

Fig. 1 is a schematic overall structure diagram of a first embodiment of the present application.

Fig. 2 is a partial structural schematic diagram mainly used for showing the limiting assembly, the locking seat, the actuating assembly, the fixing rod and the sliding rod in the first embodiment of the present application.

Fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a partial structural schematic diagram mainly illustrating an actuating assembly according to a second embodiment of the present application.

Reference numerals: 1. a traction sheave; 11. rope grooves; 2. a mounting seat; 3. a locking seat; 31. a tightening block; 311. an arc-shaped slot; 312. a wear layer; 4. a speed measuring wheel; 5. a restraining component; 51. a column; 52. a limiting strip; 53. a limiting groove; 61. a screw; 62. a first driving member; 71. a support bar; 72. a lever; 73. a second driving member; 74. a limiting slide block; 75. a limiting chute; 81. fixing the rod; 82. a slide bar.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses a sliding type traction sheave locking device.

Example one

Referring to fig. 1 and 2, the sliding type traction sheave locking device comprises a traction sheave 1 and a mounting seat 2 used for being connected with a traction machine, wherein a plurality of rope grooves 11 are formed in the traction sheave 1, a locking seat 3 is arranged on the mounting seat 2 in a sliding manner, a locking part is arranged on one side, close to the traction sheave 1, of the locking seat 3, a speed measuring wheel 4 used for monitoring the running speed of the traction rope is further arranged on the mounting seat 2, and the speed measuring wheel 4 abuts against the traction sheave 1; the mounting base 2 is provided with a limiting component 5 for limiting the locking base 3 to slide towards the direction close to or far away from the traction sheave 1, and the mounting base 2 is also provided with an actuating component for actuating the locking base 3 to move.

When the speed measuring wheel 4 detects that the running speed of the traction rope is too high, the limiting assembly 5 limits the locking seat 3 to move only in the direction close to or far away from the traction wheel 1, the driving assembly drives the locking seat 3 to move in the direction close to the traction wheel 1, the locking member reaches the position of the traction rope, the traction rope is braked through the locking member, and the phenomenon that the traction rope cannot be braked due to the fact that the friction force between the rope groove 11 and the traction rope is reduced is avoided.

Referring to fig. 1 and 3, the locking member is a tightening block 31 corresponding to the rope groove 11 one by one, the tightening block 31 is fixedly connected to one side of the locking seat 3 close to the traction sheave 1, one side of the tightening block 31 close to the traction sheave 1 is provided with a cambered surface matched with the peripheral side of the cambered surface of the traction sheave 1, one side of the tightening block 31 close to the traction sheave 1 is provided with an arc-shaped groove 311 which is not smaller than the diameter of the traction rope, the wall of the arc-shaped groove 311 is provided with a wear-resistant layer 312, and the wear-resistant layer 312 is a nodular cast iron layer.

In the process of braking the hauling rope, the locking seat 3 moves towards the direction close to the hauling wheel 1 until the abutting block 31 abuts against the hauling rope on the hauling wheel 1, and the abutting block 31 extrudes the hauling rope to the bottom wall of the rope groove 11, so that the pressure on the hauling rope is increased; meanwhile, the abutting block 31 abuts against the hoisting rope, the contact area between the abutting block 31 and the hoisting rope is increased by the cambered surface of the abutting block 31, the friction force borne by the hoisting rope is further increased, and the hoisting rope is effectively braked.

Referring to fig. 2, limiting assembly 5 includes upright 51 fixedly connected to mount pad 2, and a plurality of limiting strips 52 fixedly connected to upright 51, where two limiting strips 52 may be provided, and limiting strip 52 is a T-shaped strip, and mount pad 2 is provided with a limiting groove 53 sliding to adapt to limiting strip 52 and extending along the horizontal direction, and limiting groove 53 is also a T-shaped groove.

When the driving component drives the abutting seat to move, the limiting groove 53 on the abutting seat limits the moving direction of the abutting seat, that is, the abutting seat can only move along the extending direction of the limiting groove 53.

Referring to fig. 1, the driving assembly includes a screw 61 threaded through the locking seat 3 and away from one side of the traction sheave 1 and a first driving member 62 driving the rotation of the screw 61, the first driving member 62 may be a motor, and an output end of the motor is fixedly connected to one end of the screw 61, in this embodiment, a fixing rod 81 is further vertically fixedly connected to the mounting seat 2, a sliding rod 82 is fixedly connected to one side of the abutting seat close to the first driving member 62, and the sliding rod 82 and the screw 61 both penetrate through the fixing rod 81.

When the speed of the traction sheave 1 is too high, the motor drives the screw 61 to rotate, the rotating screw 61 can drive the locking seat 3 to move towards the direction close to the traction sheave 1, and the sliding rod 82 and the screw 61 further enhance the stability of the locking seat 3.

The implementation principle of the locking device of the sliding traction sheave 1 in the embodiment of the application is as follows: when the speed measuring wheel 4 detects that the running speed of the traction rope is too high, the motor drives the screw rod 61 to rotate, the rotating screw rod 61 can drive the locking seat 3 to move towards the direction close to the traction wheel 1, the abutting block 31 reaches the position of the traction rope, the traction rope is braked through the abutting block 31, and the phenomenon that the traction rope cannot be braked due to the fact that the friction force between the rope groove 11 and the traction rope is reduced is avoided.

Example two

Referring to fig. 4, the embodiment of the present invention is different from the first embodiment in that the actuating assembly includes a supporting rod 71 fixedly connected to the mounting base 2, a lever 72 hinged to the supporting rod 71, and a second actuating member 73 disposed at one end of the lever 72 and used for driving the lever 72 to rotate, where the second actuating member 73 may be an electric push rod, an air cylinder, or a hydraulic cylinder, and in the embodiment of the present invention, the second actuating member 73 is an electric push rod. One end of the lever 72 close to the locking seat 3 is hinged with a limiting sliding block 74, a limiting sliding groove 75 matched with the limiting sliding block 74 in a limiting manner is formed in the locking seat 3, the extending direction of the sliding groove is parallel to the vertical direction, the limiting sliding block 74 is a T-shaped block, the limiting sliding groove 75 is a T-shaped sliding groove, and the distance between the locking seat 3 and the supporting rod 71 of the lever 72 is smaller than the distance between the supporting rod 71 and the second driving piece 73.

The second driving member 73 drives the lever 72 to rotate by taking the hinge axis of the support rod 71 and the lever 72 as an axis, and since the limit sliding groove 75 limits the limit sliding block 74 to move only in the vertical direction, and further the limit sliding block 74 pushes the locking seat 3 to move in the direction close to the traction sheave 1, the traction rope can be continuously extruded by the abutting block 31, and meanwhile, due to the unequal lengths of the two ends of the lever 72, the second driving member 73 can push the locking seat 3 with smaller pushing force, and the locking seat 3 is abutted more tightly.

The implementation principle of the sliding type traction sheave locking device in the embodiment of the application is as follows: the second driving member 73 drives the lever 72 to rotate about the hinge axis of the support rod 71 and the lever 72, so that the stopper 31 reaches the position of the hoist rope, and the hoist rope is braked by the stopper 31, thereby preventing the hoist rope from being braked due to the decrease of the friction between the rope groove 11 and the hoist rope.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a slidingtype traction sheave locking device, includes traction sheave (1) and is used for mount pad (2) be connected with the hauler, a plurality of grooving (11) have been seted up on traction sheave (1), its characterized in that: the mounting seat (2) is provided with a locking seat (3) in a sliding manner, one side of the locking seat (3) close to the traction sheave (1) is provided with a locking piece, and the mounting seat (2) is also provided with a speed measuring wheel (4) for monitoring the running speed of the traction rope;

the traction sheave locking device is characterized in that a limiting component (5) used for limiting the locking seat (3) to slide towards the direction close to or far away from the traction sheave (1) is arranged on the mounting seat (2), and an actuating component used for actuating the locking seat (3) to move is further arranged on the mounting seat (2).

2. The sliding type traction sheave locking apparatus according to claim 1, wherein: the locking piece is a supporting block (31) corresponding to the rope groove (11) one by one, the supporting block (31) is fixedly connected to one side, close to the traction sheave (1), of the locking seat (3), and one side, close to the traction sheave (1), of the supporting block (31) is arranged to be a cambered surface matched with the periphery of the cambered surface of the traction sheave (1).

3. The sliding type traction sheave locking apparatus according to claim 2, wherein: one side of the abutting block (31) close to the traction sheave (1) is provided with an arc-shaped groove (311) which is not smaller than the diameter of the traction rope.

4. The sliding type traction sheave locking apparatus according to claim 2 or 3, wherein: and a wear-resistant layer (312) is arranged on one side, close to the locking seat (3), of the abutting block (31).

5. The sliding type traction sheave locking apparatus according to claim 1, wherein: restriction subassembly (5) are in including the rigid coupling stand (51), rigid coupling on mount pad (2) are in spacing (52) of a plurality of on stand (51), seted up on mount pad (2) with spacing (52) the adaptation of sliding just follow spacing groove (53) that the horizontal direction extends.

6. The sliding type traction sheave locking apparatus according to claim 1, wherein: the driving component comprises a screw rod (61) which is threaded on one side of the locking seat (3) far away from the traction sheave (1) and a first driving piece (62) for driving the screw rod (61) to rotate.

7. The sliding type traction sheave locking apparatus according to claim 1, wherein: order about the subassembly and include the rigid coupling bracing piece (71) on mount pad (2), articulate lever (72) on bracing piece (71) and setting are in lever (72) one end just is used for the drive lever (72) pivoted second driving piece (73), lever (72) are close to the one end of locking seat (3) articulates there is limit slider (74), locking seat (3) on seted up with limit slider (74) limit the spacing spout (75) of adaptation, just the extending direction and the vertical direction of spout parallel.

8. The sliding type traction sheave locking apparatus according to claim 7, wherein: the distance between the lever (72) and the locking seat (3) and the supporting rod (71) is smaller than the distance between the supporting rod (71) and the second driving piece (73).