CN113428793A

CN113428793A - Winch convenient to replace and maintain for crane

Info

Publication number: CN113428793A
Application number: CN202110984979.0A
Authority: CN
Inventors: 韩新明; 曹振
Original assignee: Xianghai Heavy Industry Group Co ltd
Current assignee: Xianghai Heavy Industry Group Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2021-09-24
Anticipated expiration: 2041-08-26
Also published as: CN113428793B

Abstract

The invention relates to the technical field of crane winches, in particular to a winch convenient to replace and maintain, which comprises a winch mounting shell, a storage shaft, a quick replacement mechanism and a winch connecting base, wherein the bottom of the outer wall of the winch mounting shell is provided with a limiting groove, the top of the side wall of the winch connecting base is provided with a limiting block matched with the limiting groove, the outer wall of the top of the winch connecting base is fixedly provided with a clamping plate, the bottom of the winch mounting shell is contacted with the upper surface of the clamping plate, the storage shaft is rotatably connected between two side walls of the winch mounting shell, the quick replacement mechanism is arranged below the outer wall of the winch mounting shell, the winch connecting base is arranged at the bottom of the winch mounting shell, one end of the storage shaft is fixedly connected with a conical fluted disc, the winch is convenient and quick to mount and dismount, the winch is convenient to replace and maintain, braking can be rapidly and timely performed under the condition that loosening occurs, and potential safety hazards of workers are avoided.

Description

Winch convenient to replace and maintain for crane

Technical Field

The invention relates to the technical field of winches of cranes, in particular to a winch of a crane, which is convenient to replace and maintain.

Background

The crane refers to a multi-action hoisting machine for vertically lifting and horizontally carrying heavy objects within a certain range, the winch is an important component of the crane, and the winch is a machine capable of winding a rope under power driving.

General direct fixed connection of capstan winch is in crane rack, and when the capstan winch need be changed and maintained, the dismantlement process of capstan winch is more loaded down with trivial details, and wastes time and energy, influences the normal use of hoist simultaneously, if not hard up phenomenon appears in the capstan winch, the hoist can not in time brake, can cause the damage to the capstan winch at the during operation, can bring the potential safety hazard for the staff simultaneously.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a winch of a crane, which is convenient to replace and maintain.

The technical scheme adopted by the invention for solving the technical problems is as follows: a winch of a crane convenient for replacement and maintenance comprises a winch mounting shell, a containing shaft, a quick replacement mechanism and a winch connecting base, wherein the bottom of the outer wall of the winch mounting shell is provided with a limiting groove, the top of the side wall of the winch connecting base is provided with a limiting block matched with the limiting groove, the outer wall of the top of the winch connecting base is fixedly provided with a clamping plate, the bottom of the winch mounting shell is contacted with the upper surface of the clamping plate, the containing shaft is rotatably connected between two side walls of the winch mounting shell, the quick replacement mechanism is arranged below the outer wall of the winch mounting shell, the winch connecting base is arranged at the bottom of the winch mounting shell, one end of the containing shaft is fixedly connected with a conical fluted disc, the conical fluted disc is rotatably connected with the winch mounting shell through a connecting rotating shaft, a conical gear is arranged below the conical fluted disc and meshed with the conical fluted disc, the bottom of the conical gear is fixedly connected with a transmission shaft, and the transmission shaft penetrates through the bottom of the winch mounting shell, the transmission shaft is rotatably connected with the bottom of the winch mounting shell, and a connecting hole is formed in the bottom of the transmission shaft;

capstan winch installation shell lateral wall bottom is equipped with the mounting groove, and quick replacement mechanism includes joint pole and loose axle, and loose axle fixed connection is in joint pole upper end both sides, and in the mounting groove was arranged in to the loose axle upper end, the mounting groove lateral wall was equipped with the activity groove with the looks adaptation of loose axle, and the joint pole passes through loose axle and activity groove swing joint, and fixed surface is connected with electronic holding rod on the joint board, and the flexible end of electronic holding rod can contact with the joint pole.

Specifically, the base middle part is connected to the capstan winch and is equipped with the cavity, and the first motor of cavity bottom fixedly connected with of base is connected to the capstan winch, the electronic telescopic shaft of output fixedly connected with of first motor, the flexible end and the connecting hole cooperation setting of electronic telescopic shaft.

Specifically, joint pole bottom fixedly connected with mounting panel, joint board are equipped with the joint groove, and the joint inslot is arranged in to the mounting panel, and the mounting panel can support tightly with the joint groove.

Specifically, the mounting panel middle part is equipped with the installation cavity, triggers the piece and arranges the installation cavity in, and triggers piece and installation cavity lateral wall sliding connection.

Specifically, trigger block bottom is equipped with the spring chamber, and spring chamber internal portion is connected with return spring, and return spring upper end fixed connection is at the spring chamber top, and return spring's lower extreme fixed connection supports the groove at installation cavity bottom, supports groove middle part fixedly connected with trigger shaft, and the cover is established at the trigger shaft outer wall in the middle part of the trigger bar, and the trigger bar rotates with the trigger shaft outer wall to be connected.

Specifically, the two sides of the bottom of the trigger block are provided with a pressing groove, one end of the trigger rod, which is close to the trigger block, is arranged in the pressing groove, and the trigger rod is tightly abutted to the outer wall of the pressing groove.

Specifically, the mounting panel both sides are equipped with the balancing piece, and the mounting panel both sides are equipped with the spread groove, and the balancing piece is close to mounting panel one side be equipped with the connecting block of spread groove looks adaptation, and in the spread groove was arranged in to the connecting block, the balancing piece passed through connecting block and spread groove swing joint, and the joint inslot is arranged in to the balancing piece, and the joint tank bottom is equipped with starting transducer, and the balancing piece can support tight starting transducer.

Specifically, the balance block is internally provided with a jacking sliding groove, one end of the trigger rod, which is far away from the trigger block, is arranged in the jacking sliding groove, and the trigger rod is connected with the jacking sliding groove in a sliding manner.

The invention has the beneficial effects that:

(1) according to the winch convenient to replace and maintain for the crane, when the winch loosens in the working process, the balance block shakes, the balance block can be separated from the starting sensor, so that the first motor can be powered off immediately, the first motor stops rotating, the telescopic end of the electric telescopic shaft retracts and stops rotating at the same time, the winch is braked emergently, potential safety hazards of workers during working are avoided, in emergency situations, the winch is braked by directly separating the balance block from the starting sensor, safety of the workers is further guaranteed, in the process that the mounting plate is pulled upwards by the clamping rod, stress on two sides of the mounting plate is balanced, meanwhile, the contact area with the clamping plate is increased, and fixing is more stable and firm.

(2) According to the winch convenient to replace and maintain for the crane, when the winch needs to be disassembled, replaced and maintained, the telescopic end of the electric jacking rod is controlled to retract, the telescopic end of the electric jacking rod is separated from the clamping rod, the movable shaft slides downwards along the movable groove, the clamping rod can rotate freely, the clamping rod is rotated to enable the mounting plate to rotate out of the clamping groove, the separation of the winch mounting shell and the winch connecting base is achieved, convenience and rapidness are achieved, and the quick replacement and maintenance of the winch are facilitated.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic perspective view of a winch of a crane provided by the present invention, which is convenient to replace and maintain.

FIG. 2 is a connection diagram of a conical fluted disc and a conical gear provided by the present invention.

Fig. 3 is a perspective view of the electric telescopic shaft provided by the present invention.

Fig. 4 is an enlarged view of a portion a of fig. 1 according to the present invention.

Fig. 5 is a perspective view of a quick-change mechanism provided by the present invention.

Fig. 6 is a sectional view taken along the direction B-B in fig. 5 according to the present invention.

Fig. 7 is an enlarged view of the invention at C in fig. 6.

In the figure: 1. a winch mounting housing; 11. a limiting groove; 12. mounting grooves; 2. a storage shaft; 21. a conical fluted disc; 23. connecting the rotating shaft; 24. a bevel gear; 25. a drive shaft; 26. connecting holes; 4. a first motor; 41. an electric telescopic shaft; 5. a quick replacement mechanism; 51. a clamping and connecting rod; 52. a movable shaft; 53. a trigger block; 531. a spring cavity; 532. pressing the groove downwards; 54. a counterbalance; 541. jacking up the chute; 55. mounting a plate; 551. a mounting cavity; 552. a support groove; 553. connecting grooves; 56. a trigger lever; 57. a return spring; 6. the winch is connected with the base; 61. a clamping and connecting plate; 62. a clamping groove; 63. electric puller rod.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in FIGS. 1-7, a winch of a crane convenient for replacement and maintenance comprises a winch mounting shell 1, a receiving shaft 2, a quick replacement mechanism 5 and a winch connecting base 6, wherein the bottom of the outer wall of the winch mounting shell 1 is provided with a limiting groove 11, the top of the side wall of the winch connecting base 6 is provided with a limiting block matched with the limiting groove 11, the outer wall of the top of the winch connecting base 6 is fixedly provided with a clamping plate 61, the bottom of the winch mounting shell 1 is contacted with the upper surface of the clamping plate 61, the receiving shaft 2 is rotatably connected between the two side walls of the winch mounting shell 1, the quick replacement mechanism 5 is arranged below the outer wall of the winch mounting shell 1, the winch connecting base 6 is arranged at the bottom of the winch mounting shell 1, one end of the receiving shaft 2 is fixedly connected with a conical fluted disc 21, the conical fluted disc 21 is rotatably connected with the winch mounting shell 1 through a connecting rotating shaft 23, a conical gear 24 is arranged below the conical fluted disc 21, and the conical gear 24 is meshed with the conical fluted disc 21, the bottom of the bevel gear 24 is fixedly connected with a transmission shaft 25, the transmission shaft 25 penetrates through the bottom of the winch mounting shell 1, the transmission shaft 25 is rotatably connected with the bottom of the winch mounting shell 1, a connecting hole 26 is formed in the bottom of the transmission shaft 25, the winch can be quickly mounted and dismounted by arranging the quick replacement mechanism 5, the winch is convenient to replace and maintain, the winch connecting base 6 is fixedly mounted on the crane frame, the winch is quickly connected through the winch connecting base 6, the winch mounting shell 1 is placed at the top of the winch connecting base 6, the bottom of the winch mounting shell 1 is contacted with the top of the clamping plate 61, the limiting groove 11 is matched with the limiting block, the phenomenon of inclination in the mounting process of the winch mounting shell 1 is avoided, the transmission shaft 25 drives the bevel gear 24 to synchronously rotate in the rotating process, the bevel gear 24 drives the bevel gear 21 to rotate, and the storage shaft 2 is driven to rotate in the rotating process of the bevel gear 21, thereby realizing the process of retracting and loosening the steel wire rope.

Specifically, 6 middle parts of base are connected to the capstan winch are equipped with the cavity, the first motor 4 of cavity bottom fixedly connected with of base 6 is connected to the capstan winch, the electronic telescopic shaft 41 of output fixedly connected with of first motor 4, the flexible end and the connecting hole 26 cooperation setting of electronic telescopic shaft 41, the output of first motor 4 rotates, drive the electronic telescopic shaft 41 of upper end simultaneously, rotate simultaneously electronic telescopic shaft 41 extension simultaneously, electronic telescopic shaft 41 is in the connecting hole 26 that the extension in-process got into transmission shaft 25 bottom, electronic telescopic shaft 41 is connected with transmission shaft 25, (the axle of taking off principle is shown as publication number CN 207664826U) then electronic telescopic shaft 41 drives transmission shaft 25 synchronous rotation.

Specifically, the bottom of the side wall of the winch mounting shell 1 is provided with a mounting groove 12, the quick replacement mechanism 5 comprises a clamping rod 51 and a movable shaft 52, the movable shaft 52 is fixedly connected to two sides of the upper end of the clamping rod 51, the upper end of the movable shaft 52 is arranged in the mounting groove 12, the side wall of the mounting groove 12 is provided with a movable groove matched with the movable shaft 52, the clamping rod 51 is movably connected with the movable groove through the movable shaft 52, the upper surface of the clamping plate 61 is fixedly connected with an electric jacking rod 63, the telescopic end of the electric jacking rod 63 can be contacted with the clamping rod 51, during the rotation of the clamping rod 51, the upper end of the clamping rod 51 rotates in the mounting groove 12 and simultaneously drives the movable shaft 52 to rotate in the movable groove, the electric jacking rod 63 is controlled to extend, the telescopic end of the electric jacking rod 63 jacks up the clamping rod 51, the clamping rod 51 moves upwards along the direction of the mounting groove 12, meanwhile, the movable shaft 52 moves upwards along the direction of the movable groove, the clamping rod 51 is prevented from inclining during the upward movement by the matching arrangement of the movable shaft 52 and the movable groove.

Specifically, clamping rod 51 bottom fixedly connected with mounting panel 55, clamping plate 61 are equipped with joint groove 62, and in joint groove 62 was arranged in to mounting panel 55, and mounting panel 55 can support tightly with joint groove 62, and clamping rod 51 drives the synchronous upward movement of mounting panel 55 of lower extreme during the upward movement, realizes that mounting panel 55 supports tightly with joint groove 62.

Specifically, the middle of the mounting plate 55 is provided with a mounting cavity 551, the trigger block 53 is arranged in the mounting cavity 551, the trigger block 53 is in sliding connection with the side wall of the mounting cavity 551, the clamping groove 62 extrudes the upper surface of the trigger block 53 in the process that the mounting plate 55 is tightly abutted to the clamping groove 62, and the trigger block 53 moves towards the bottom of the mounting cavity 551 along the direction of the mounting cavity 551.

Specifically, the bottom of the trigger block 53 is provided with a spring cavity 531, a return spring 57 is connected inside the spring cavity 531, the upper end of the return spring 57 is fixedly connected to the top of the spring cavity 531, the lower end of the return spring 57 is fixedly connected to a supporting groove 552 at the bottom of the installation cavity 551, a trigger shaft is fixedly connected to the middle of the supporting groove 552, the middle of the trigger rod 56 is sleeved on the outer wall of the trigger shaft, the trigger rod 56 is rotatably connected with the outer wall of the trigger shaft, the trigger block 53 moves towards the bottom of the installation cavity 551 along the direction of the installation cavity 551, meanwhile, the return spring 57 in the spring cavity 531 is compressed, when the trigger block 53 moves, the push-down grooves 532 at two ends of the trigger block 53 move synchronously, the push-down grooves 532 drive the trigger rod 56 to move downwards at one end inside the push-down grooves 532, and the trigger rod 56 rotates along the trigger shaft.

Specifically, the two sides of the bottom of the trigger block 53 are provided with a pressing groove 532, one end of the trigger rod 56 close to the trigger block 53 is arranged in the pressing groove 532, the trigger rod 56 is tightly abutted to the outer wall of the pressing groove 532, and one end of the trigger rod 56 close to the trigger block 53 is controlled by the pressing groove 532.

Specifically, the two sides of the mounting plate 55 are provided with balance blocks 54, the two sides of the mounting plate 55 are provided with connecting grooves 553, one side of the balance block 54 close to the mounting plate 55 is provided with a connecting block adapted to the connecting grooves 553, the connecting block is arranged in the connecting groove 553, the balance block 54 is movably connected with the connecting groove 553 through the connecting block, the balance block 54 is arranged in the clamping groove 62, the bottom of the clamping groove 62 is provided with a starting sensor (the model of the starting sensor is PT 124G-210), the balance block 54 can support against the starting sensor, the pressing groove 532 drives one end of the trigger rod 56 arranged in the pressing groove 532 to move downwards, the trigger rod 56 rotates along the trigger shaft, the other end of the trigger rod 56 pushes the balance blocks 54 on the two sides of the mounting plate 55 to move upwards and squeezes the starting sensor arranged in the clamping groove 62, the balance blocks 54 play a balancing role while, the two sides of the mounting plate 55 are stressed evenly, and meanwhile, the contact area between the mounting plate 55 and the clamping plate 61 is increased, so that the fixing is more stable and firm.

Specifically, the inside jack-up spout 541 that is equipped with of balancing piece 54, the one end that trigger block 53 was kept away from to trigger bar 56 is arranged in jack-up spout 541, and trigger bar 56 and jack-up spout 541 sliding connection, press down the inside one end downstream of groove 532 to drive trigger bar 56 and arrange in down in groove 532 down when groove 532, trigger bar 56 rotates along the trigger shaft, the other end of trigger bar 56 will promote the balancing piece 54 upward movement of mounting panel 55 both sides through jack-up spout 541 and make mounting panel 55 and joint groove 62 fully contact, increased the area of contact with joint plate 61, it is firm to make fixed more stable.

The working principle is that the winch mounting shell 1 is placed on the top of the winch connecting base 6, the bottom of the winch mounting shell 1 is contacted with the top of the clamping plate 61, the limiting groove 11 and the limiting block are matched to avoid the inclination phenomenon in the installation process of the winch mounting shell 1, the mounting plate 55 enters the clamping groove 62 by rotating the clamping rod 51, the upper end of the clamping rod 51 rotates in the mounting groove 12 and simultaneously drives the movable shaft 52 to rotate in the movable groove, the electric tightening rod 63 is controlled to extend, the telescopic end of the electric tightening rod 63 jacks up the clamping rod 51, the clamping rod 51 moves upwards along the direction of the mounting groove 12, meanwhile, the movable shaft 52 moves upwards along the direction of the movable groove, the clamping rod 51 is prevented from inclining in the upwards movement process by the matching arrangement of the movable shaft 52 and the movable groove, the mounting plate 55 at the lower end is driven to move upwards synchronously when the clamping rod 51 moves upwards, the mounting plate 55 is tightly abutted against the clamping groove 62, the winch mounting shell 1 is fixed with the winch connecting base 6, the clamping groove 62 extrudes the upper surface of the trigger block 53 in the abutting process of the mounting plate 55 and the clamping groove 62, the trigger block 53 moves towards the bottom of the mounting cavity 551 along the direction of the mounting cavity 551, meanwhile, the return spring 57 in the spring cavity 531 is compressed, the pressing grooves 532 at the two ends of the trigger block 53 synchronously move while the trigger block 53 moves, the pressing grooves 532 drive the trigger rod 56 to move downwards at one end arranged in the pressing grooves 532, the trigger rod 56 rotates along the trigger shaft, the other end of the trigger rod 56 pushes the balance blocks 54 at the two sides of the mounting plate 55 to move upwards and extrude the starting sensor arranged in the clamping groove 62, the balance blocks 54 play a balance role while extruding the starting sensor, the two sides of the mounting plate 55 are stressed evenly in the process that the clamping rod 51 pulls the mounting plate 55 upwards, meanwhile, the contact area with the clamping plate 61 is increased, so that the fixing is more stable and firm, the first motor 4 is electrified by the work of the starting sensor, the output end of the first motor 4 rotates, the electric telescopic shaft 41 at the upper end is driven, meanwhile, the electric telescopic shaft 41 rotates and extends, the electric telescopic shaft 41 enters the connecting hole 26 at the bottom of the transmission shaft 25 in the extending process, the electric telescopic shaft 41 is connected with the transmission shaft 25 (the shaft-disengaging principle is shown in the publication number CN 207664826U), then, the electric telescopic shaft 41 drives the transmission shaft 25 to synchronously rotate, the transmission shaft 25 drives the bevel gear 24 to synchronously rotate in the rotating process, the bevel gear 24 drives the bevel fluted disc 21 to rotate, the conical fluted disc 21 drives the accommodating shaft 2 to rotate in the rotating process, the process of receiving and loosening the steel wire rope is realized, and when the winch loosens in the working process, the balance block 54 can disengage from the starting sensor, thereby first motor 4 can cut off the power supply at once, the flexible end of electronic telescopic shaft 41 is withdrawed and the stall, avoid staff's safety hazard of going out in the course of the work, when needing to dismantle the change maintenance, the flexible end of the electronic tight pole 63 of control is withdrawed, the flexible end of electronic tight pole 63 breaks away from with joint rod 51, joint rod 51 rotates and makes mounting panel 55 roll out from joint groove 62, realize breaking away from of base 6 is connected with the capstan winch to capstan winch installation shell 1, high convenience and rapidness, be favorable to the quick replacement and the maintenance of capstan winch.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a hoist is convenient for change winch of maintaining which characterized in that: comprises a winch mounting shell (1), a receiving shaft (2), a quick replacement mechanism (5) and a winch connecting base (6), wherein the bottom of the outer wall of the winch mounting shell (1) is provided with a limiting groove (11), the top of the side wall of the winch connecting base (6) is provided with a limiting block matched with the limiting groove (11), the outer wall of the top of the winch connecting base (6) is fixedly provided with a clamping plate (61), the bottom of the winch mounting shell (1) is contacted with the upper surface of the clamping plate (61), the receiving shaft (2) is rotatably connected between the two side walls of the winch mounting shell (1), the quick replacement mechanism (5) is arranged below the outer wall of the winch mounting shell (1), the winch connecting base (6) is arranged at the bottom of the winch mounting shell (1), one end of the receiving shaft (2) is fixedly connected with a conical fluted disc (21), and the conical fluted disc (21) is rotatably connected with the winch mounting shell (1) through a connecting rotating shaft (23), a conical gear (24) is arranged below the conical fluted disc (21), the conical gear (24) is meshed with the conical fluted disc (21), the bottom of the conical gear (24) is fixedly connected with a transmission shaft (25), the transmission shaft (25) penetrates through the bottom of the winch mounting shell (1), the transmission shaft (25) is rotatably connected with the bottom of the winch mounting shell (1), and a connecting hole (26) is formed in the bottom of the transmission shaft (25);

capstan winch installation shell (1) lateral wall bottom is equipped with mounting groove (12), quick replacement mechanism (5) are including joint pole (51) and loose axle (52), loose axle (52) fixed connection is in joint pole (51) upper end both sides, mounting groove (12) are arranged in to loose axle (52) upper end, mounting groove (12) lateral wall is equipped with the movable groove with loose axle (52) looks adaptation, joint pole (51) are through loose axle (52) and movable groove swing joint, fixed surface is connected with electronic puller rod (63) on joint board (61), the flexible end of electronic puller rod (63) can contact with joint pole (51).

2. A winch for facilitating replacement and maintenance of a crane according to claim 1, wherein: the winch is connected base (6) middle part and is equipped with the cavity, and the first motor of cavity bottom fixedly connected with (4) of base (6) is connected to the winch, the electronic telescopic shaft (41) of output fixedly connected with of first motor (4), the flexible end and the connecting hole (26) cooperation setting of electronic telescopic shaft (41).

3. A winch for facilitating replacement and maintenance of a crane according to claim 1, wherein: clamping rod (51) bottom fixedly connected with mounting panel (55), clamping plate (61) are equipped with joint groove (62), and joint groove (62) are arranged in mounting panel (55), and mounting panel (55) can support tightly with joint groove (62).

4. A winch for facilitating replacement and maintenance of a crane according to claim 3, wherein: the middle of the mounting plate (55) is provided with a mounting cavity (551), the trigger block (53) is arranged in the mounting cavity (551), and the trigger block (53) is in sliding connection with the side wall of the mounting cavity (551).

5. A winch of claim 4, wherein the winch is convenient for replacement and maintenance, and comprises: trigger block (53) bottom is equipped with spring chamber (531), and spring chamber (531) internal connection has return spring (57), and return spring (57) upper end fixed connection is at spring chamber (531) top, and return spring (57)'s lower extreme fixed connection supports groove (552) in installation cavity (551) bottom, supports groove (552) middle part fixedly connected with trigger shaft, and trigger bar (56) middle part cover is established at the trigger shaft outer wall, and trigger bar (56) rotate with the trigger shaft outer wall and be connected.

6. A winch of claim 5, wherein the winch is adapted to facilitate replacement and maintenance of the winch, and further comprises: the two sides of the bottom of the trigger block (53) are provided with a pressing groove (532), one end of the trigger rod (56) close to the trigger block (53) is arranged in the pressing groove (532), and the trigger rod (56) is tightly abutted to the outer wall of the pressing groove (532).

7. A winch of claim 4, wherein the winch is convenient for replacement and maintenance, and comprises: mounting panel (55) both sides are equipped with balancing piece (54), mounting panel (55) both sides are equipped with connecting groove (553), balancing piece (54) are close to mounting panel (55) one side be equipped with the connecting block of connecting groove (553) looks adaptation, the connecting block is arranged in connecting groove (553), balancing piece (54) are through connecting block and connecting groove (553) swing joint, in joint groove (62) are arranged in balancing piece (54), joint groove (62) bottom is equipped with start-up sensor, balancing piece (54) can support tight start-up sensor.

8. A winch of claim 7, wherein the winch is adapted to facilitate replacement and maintenance of the winch, and further comprises: a jacking sliding groove (541) is formed in the balance block (54), one end, far away from the trigger block (53), of the trigger rod (56) is arranged in the jacking sliding groove (541), and the trigger rod (56) is connected with the jacking sliding groove (541) in a sliding mode.