阅读说明：本技术 一种塔式起重机钢丝绳预紧锁定装置 (Steel wire rope pre-tightening locking device of tower crane ) 是由 李宗明 于 2021-01-14 设计创作，主要内容包括：本发明涉及钢丝绳预紧锁定装置技术领域,具体为一种塔式起重机钢丝绳预紧锁定装置。本发明可以方便对钢丝绳进行预紧锁定,通过固定柱挤压钢丝绳增大钢丝绳与机体的摩擦,使得钢丝绳无法快速移动,在通过两块夹板将钢丝绳夹紧,使得钢丝绳无法移动,通过纯机械的结构来实现预紧锁定钢丝绳,减轻电动机的负担,减少电动机的损坏几率,使得电动机的使用寿命得以延长,增加塔式起重机的使用年限,增加经济效益。(The invention relates to the technical field of steel wire rope pre-tightening locking devices, in particular to a steel wire rope pre-tightening locking device of a tower crane. The steel wire rope can be conveniently pre-tightened and locked, friction between the steel wire rope and the machine body is increased by extruding the steel wire rope through the fixing column, so that the steel wire rope cannot move quickly, the steel wire rope is clamped tightly by the two clamping plates, so that the steel wire rope cannot move, the steel wire rope is pre-tightened and locked through a purely mechanical structure, the burden of the motor is reduced, the damage probability of the motor is reduced, the service life of the motor is prolonged, the service life of the tower crane is prolonged, and the economic benefit is increased.)

1. The utility model provides a tower crane wire rope pretension locking device, includes organism (1), its characterized in that: the rope walking mechanism is characterized in that a rope walking groove (2) is formed in the bottom end inside the machine body (1), a limited rope groove (26) is formed in the middle of the rope walking groove (2), a limiting structure (4) is arranged inside the left side of the upper end of the machine body (1), a movable cavity (3) is arranged inside the upper end of the machine body (1), a first sliding groove (5) is formed in the left side of the movable cavity (3), a first sliding block (6) is arranged inside the first sliding groove (5), a pushing block (7) is fixedly connected to the right side of the first sliding block (6), a fixing rod (8) is fixedly connected to the bottom of the pushing block (7), a clamping plate (9) is hinged to the bottom of the fixing rod (8), a lower support spring (10) is fixedly connected to the middle of the upper end of the pushing block (7), a lifting rod (11) is fixedly connected to the outer side of the upper end of the, electric telescopic handle (16) bottom fixed connection push pedal (19), push pedal (19) bottom fixed connection support post (20), support post (20) bottom is provided with moves board (21), moves board (21) inside and is provided with third spout (22), and third spout (22) inside is provided with third slider (23), and third slider (23) right side fixed connection promotes spring (24), it is provided with abrupt tooth (25) to move board (21) bottom, activity chamber (3) right side is provided with second spout (17), and second slider (18) have been organized to second spout (17) internal society.

2. The tower crane steel wire rope pretension locking device according to claim 1, characterized in that: walk rope groove (2) and run through organism (1), walk rope groove (2) middle symmetry and be provided with two limit rope grooves (26), limit rope groove (26) set up to semi-circular, walk rope groove (2) middle upper end intercommunication activity chamber (3).

3. The tower crane steel wire rope pretension locking device according to claim 1, characterized in that: the limiting structure (4) comprises a limiting cavity (401), a first push rod (402), a limiting plate (403), a limiting spring (404), a limiting block (405), a moving groove (406), a second push rod (407), a top block (408), a third push rod (409), a transmission rod (410) and a pressing block (411), the limiting cavity (401) is located inside the left side of the machine body (1), the first push rod (402) is arranged inside the limiting cavity (401), the bottom of the first push rod (402) is fixedly connected with the limiting plate (403), the left side of the limiting plate (403) is fixedly connected with the limiting spring (404), the left side of the limiting spring (404) is fixedly connected with the machine body (1), the right side of the first push rod (402) is fixedly connected with the limiting block (405), the right side of the limiting block (405) penetrates through the limiting cavity (401) and extends into the first sliding groove (5), the bottom of the right side of the limiting block (405) is arranged to be an inclined plane, move groove (406) left side and set up to the inclined plane, first push rod (402) upper end is provided with second push rod (407), second push rod (407) bottom left side is hugged closely and is moved groove (406) bottom inclined plane upper end, second push rod (407) upper end fixed connection kicking block (408), kicking block (408) upper end sets up to the inclined plane, kicking block (408) upper end left side is provided with second push rod (409), kicking block (408) upper end inclined plane is hugged closely to third push rod (409) right side bottom, third push rod (409) left side fixed connection transfer line (410), transfer line (410) run through organism (1) and extend to the outside, transfer line (410) left side fixed connection presses piece (411).

4. The tower crane steel wire rope pretension locking device according to claim 1, characterized in that: dead lever (8) use ejector pad (7) to be provided with two as central bilateral symmetry, every dead lever (8) bottom equal bilateral symmetry articulates there are two splint (9), splint (9) set up to the arc, support spring (10) upper end fixed connection organism (1) down, fixed block (13) upper end sets up to the inclined plane, lifter (11) run through organism (1) and extend to the outside, lifter (11) are provided with two, push pedal (19) right side fixed connection is first and slider (18), support pole (20) bottom fixed connection third slider (23), it sets up to the inclined plane to move board (21) left side, it is provided with abrupt tooth (25) to move board (21) bottom equidistance, center pin (15) outside fixed connection organism (1).

Technical Field

The invention relates to the technical field of steel wire rope pre-tightening locking devices, in particular to a steel wire rope pre-tightening locking device of a tower crane.

Background

The tower crane is the most common hoisting equipment on the construction site, also known as tower crane, and is lengthened section by section for hoisting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like. The tower crane is an indispensable device on a construction site.

When the tower crane lifts materials, the motor drives the steel wire rope to contract, the steel wire rope is pre-tightened and locked, the motor is overloaded, the motor is easily damaged, the service life of the tower crane is shortened, the economic expenditure is increased, and when the tower crane lifts heavy materials, the steel wire rope is easily driven by the materials to move down, so that the tower crane has great potential safety hazards, and the accidents are easily caused to casualties of construction personnel.

Therefore, the invention provides a tower crane steel wire rope pre-tightening locking device for solving the problems.

Disclosure of Invention

The invention aims to provide a steel wire rope pre-tightening locking device of a tower crane, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a tower crane steel wire rope pre-tightening locking device comprises a machine body, wherein a rope running groove is formed in the bottom end inside the machine body, a limited rope groove is formed in the middle of the rope running groove, a limiting structure is arranged inside the left side of the upper end of the machine body, a movable cavity is formed inside the upper end of the machine body, a first sliding groove is formed in the left side of the movable cavity, a first sliding block is arranged inside the first sliding groove, a pushing block is fixedly connected to the right side of the first sliding block, a fixed rod is fixedly connected to the bottom of the pushing block, a clamping plate is hinged to the bottom of the fixed rod, a lower supporting spring is fixedly connected to the middle of the upper end of the pushing block, a lifting rod is fixedly connected to the outer side of the upper end of the pushing block, a transverse plate is fixedly connected to the upper end of the lifting rod, an electric telescopic rod is fixedly connected to the upper end of, the right side of the third sliding block is fixedly connected with a pushing spring, the bottom of the moving plate is provided with a protruding tooth, the right side of the movable cavity is provided with a second sliding groove, and a second sliding block is socially assembled inside the second sliding groove.

Preferably, the rope running groove penetrates through the machine body, two rope limiting grooves are symmetrically arranged in the middle of the rope running groove, the rope limiting grooves are semicircular, and the upper end of the middle of the rope running groove is communicated with the movable cavity.

Preferably, the limiting structure comprises a limiting cavity, a first push rod, a limiting plate, a limiting spring, a limiting block, a moving groove, a second push rod, a top block, a third push rod, a transmission rod and a pressing block, the limiting cavity is positioned inside the left side of the machine body, the first push rod is arranged inside the limiting cavity, the bottom of the first push rod is fixedly connected with the limiting plate, the left side of the limiting plate is fixedly connected with the limiting spring, the left side of the limiting spring is fixedly connected with the machine body, the right side of the first push rod is fixedly connected with the limiting block, the right side of the limiting block penetrates through the limiting cavity and extends into the first sliding groove, the bottom of the right side of the limiting block is arranged to be an inclined plane, the upper end of the first push rod is provided with the moving groove, the left side of the moving groove is arranged to be an inclined plane, the upper end of the first push rod is tightly attached to the upper, the bottom of the right side of the third push rod clings to the inclined plane at the upper end of the ejector block, the left side of the third push rod is fixedly connected with a transmission rod, the transmission rod penetrates through the machine body and extends to the outer side, and the left side of the transmission rod is fixedly connected with a pressing block.

Preferably, the dead lever uses the ejector pad to be provided with two as central bilateral symmetry, and every dead lever bottom equal bilateral symmetry articulates there are two splint, and splint set up to the arc, support spring upper end fixed connection organism down, and the fixed block upper end sets up to the inclined plane, and the shadoof runs through the organism and extends to the outside, and the shadoof is provided with two, and push pedal right side fixed connection is the first and slider, supports pole bottom fixed connection third slider, moves the board left side and sets up to the inclined plane, moves board bottom equidistance and is provided with abrupt tooth, center pin outside fixed connection organism.

Compared with the prior art, the invention has the beneficial effects that:

1. when the steel wire rope needs to be pre-tightened and locked, firstly, the pressing block is pressed towards the right side, the pressing block pushes the transmission rod to move towards the right side, the transmission rod pushes the third push rod to move towards the right side, the third push rod pushes the ejector block to move downwards through the friction between the bottom of the right side and the inclined plane at the top of the ejector block, the ejector rod pushes the second push rod to move downwards, the second push rod pushes the first push rod to move towards the left side through the friction between the bottom of the second push rod and the inclined plane at the left side of the moving groove, the first push rod drives the limiting block to move leftwards, the limiting block does not limit the first slide block, the spring is pushed downwards to push the push block to move downwards, the push block pushes the fixing rod to move downwards, the fixing rod pushes the clamping plates to move downwards, the steel wire rope is clamped between the two clamping plates to enter the inside of, the steel wire rope can be conveniently pre-tightened and locked, friction between the steel wire rope and the machine body is increased by extruding the steel wire rope through the fixing column, so that the steel wire rope cannot move quickly, the steel wire rope is clamped tightly by the two clamping plates, so that the steel wire rope cannot move, the steel wire rope is pre-tightened and locked through a purely mechanical structure, the burden of the motor is reduced, the damage probability of the motor is reduced, the service life of the motor is prolonged, the service life of the tower crane is prolonged, and the economic benefit is increased.

2. When heavy materials are hoisted, the electric telescopic rod is started, the electric telescopic rod pushes the push plate downwards, the push plate drives the abutting rod to move downwards, the abutting rod pushes the moving block to move downwards, the left side of the moving block is tightly attached to the fixed block, the protruded tooth at the bottom of the moving block is meshed with the rotating wheel, the materials drive the steel wire rope to move, the steel wire rope drives the rotating wheel to move, the rotating wheel drives the protruded tooth to move towards the left side, the protruded tooth drives the moving plate to move towards the left side, the inclined surface at the left side of the moving plate pushes the fixed rod to move downwards by friction with the inclined surface at the right side of the fixed block, the fixed rod drives the push block to move downwards, the fixed rod pushes the clamping plate to move downwards, the clamping plate clamps the steel wire rope more tightly, the steel wire rope moves longer the steel wire rope, the clamping plate clamps the steel wire rope tightly, the invention can prevent the steel wire rope from being locked when, the safety of lifting the goods and materials is improved, potential safety hazards are avoided, and the safety of the construction personnel on the ground is guaranteed.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic diagram of a confinement structure of the present invention;

FIG. 4 is a schematic view of the shift lever of the present invention;

fig. 5 is a side cross-sectional view of the present invention.

In the figure: the rope-moving mechanism comprises a machine body 1, a rope-moving groove 2, a movable cavity 3, a limiting structure 4, a first sliding groove 5, a first sliding block 6, a pushing block 7, a fixed rod 8, a clamping plate 9, a lower abutting spring 10, a lifting rod 11, a transverse plate 12, a fixed block 13, a rotating wheel 14, a central shaft 15, an electric telescopic rod 16, a second sliding groove 17, a second sliding block 18, a pushing plate 19, an abutting rod 20, a moving plate 21, a third sliding groove 22, a third sliding block 23, a pushing spring 24, a protruding tooth 25, a rope-limiting groove 26, a limiting cavity 401, a first pushing rod 402, a limiting plate 403, a limiting spring 404, a limiting block 405, a moving groove 406, a second pushing rod 407, a top block 408, a third pushing rod 409, a transmission rod 410, a

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work, belong to the scope of protection of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: a tower crane steel wire rope pre-tightening locking device comprises a machine body 1, a rope running groove 2 is arranged at the bottom end inside the machine body 1, a rope limiting groove 26 is arranged in the middle of the rope running groove 2, a limiting structure 4 is arranged inside the left side of the upper end of the machine body 1, a movable cavity 3 is arranged inside the upper end of the machine body 1, a first sliding groove 5 is arranged on the left side of the movable cavity 3, a first sliding block 6 is arranged inside the first sliding groove 5, a pushing block 7 is fixedly connected to the right side of the first sliding block 6, a fixed rod 8 is fixedly connected to the bottom of the pushing block 7, a clamping plate 9 is hinged to the bottom of the fixed rod 8, a lower supporting spring 10 is fixedly connected to the middle of the upper end of the pushing block 7, a lifting rod 11 is fixedly connected to the outer side of the upper end of the pushing block 7, a transverse plate 12 is fixedly connected to the upper end of the upper, a third sliding groove 22 is formed in the moving plate 21, a third sliding block 23 is arranged in the third sliding groove 22, a pushing spring 24 is fixedly connected to the right side of the third sliding block 23, a protruding tooth 25 is arranged at the bottom of the moving plate 21, a second sliding groove 17 is formed in the right side of the movable cavity 3, and a second sliding block 18 is socially arranged in the second sliding groove 17.

Walk grooving 2 and run through organism 1, walk the symmetry in the middle of grooving 2 and be provided with two limit grooving 26, limit grooving 26 sets up to semi-circular, walks in the middle of grooving 2 upper end intercommunication activity chamber 3, limit grooving 26 can lock wire rope.

The limiting structure 4 comprises a limiting cavity 401, a first push rod 402, a limiting plate 403, a limiting spring 404, a limiting block 405, a moving groove 406, a second push rod 407, a top block 408, a third push rod 409, a transmission rod 410 and a pressing block 411, wherein the limiting cavity 401 is positioned inside the left side of the machine body 1, the first push rod 402 is arranged inside the limiting cavity 401, the bottom of the first push rod 402 is fixedly connected with the limiting plate 403, the left side of the limiting plate 403 is fixedly connected with the limiting spring 404, the left side of the limiting spring 404 is fixedly connected with the machine body 1, the right side of the first push rod 402 is fixedly connected with the limiting block 405, the right side of the limiting block 405 penetrates through the limiting cavity 401 and extends into the first sliding groove 5, the bottom of the right side of the limiting block 405 is arranged to be an inclined plane, the upper end of the first push rod 402 is provided with the moving groove 406, the left side of the moving groove 406 is arranged to be an inclined plane, the upper end of, the upper end of the ejector block 408 is set to be an inclined plane, the left side of the upper end of the ejector block 408 is provided with a second push rod 409, the bottom of the right side of the third push rod 409 is tightly attached to the inclined plane of the upper end of the ejector block 408, the left side of the third push rod 409 is fixedly connected with a transmission rod 410, the transmission rod 410 penetrates through the machine body 1 and extends to the outside, the left side of the transmission rod 410 is fixedly connected with a pressing block 411, and the limiting structure 4 can ensure that when pre-.

Dead lever 8 uses ejector pad 7 to be provided with two as central bilateral symmetry, the equal bilateral symmetry in every dead lever 8 bottom articulates there are two splint 9, splint 9 sets up to the arc, support spring 10 upper end fixed connection organism 1 down, set up to the inclined plane on the fixed block 13, lifter 11 runs through organism 1 and extends to the outside, lifter 11 is provided with two, 19 right sides fixed connection of push pedal is first and slider 18, support 20 bottom fixed connection third sliders 23 of pole, it sets up to the inclined plane to move board 21 left side, it is provided with abrupt tooth 25 to move board 21 bottom equidistance, 15 outside fixed connection organisms 1 of center pin, splint 9 can press from both sides tightly wire rope.

The working principle is as follows:

when the steel wire rope needs to be pre-locked, firstly, the pressing block 411 is pressed towards the right side, the pressing block 411 pushes the transmission rod 410 to move towards the right side, the transmission rod 410 pushes the third push rod 409 to move towards the right side, the third push rod 409 pushes the top block 408 to move downwards through the friction between the bottom of the right side and the inclined surface of the top block 408, the push rod 408 pushes the second push rod 407 to move downwards, the second push rod 407 pushes the first push rod 402 to move towards the left side through the friction between the bottom and the inclined surface of the left side of the moving groove 406, the first push rod 402 drives the limiting block 405 to move towards the left, the limiting block 405 does not limit the first slide block 6, the lower supporting spring 10 pushes the push block 7 to move downwards, the push block 7 pushes the fixing rod 8 to move downwards, the fixing rod 8 pushes the clamping plates 9 to move downwards, the steel wire rope is clamped between the two clamping plates 9 and enters the rope limiting groove 26, and the lower end of the fixed rod 8 also extrudes the steel wire rope to contact with the bottom of the rope running groove 2, when heavy materials are hoisted, the electric telescopic rod 16 is started, the electric telescopic rod 16 pushes the push plate 19 downwards, the push plate 19 drives the support rod 20 to move downwards, the support rod 20 pushes the moving block 21 to move downwards, the left side of the moving block 21 is clung to the fixed block 13, the protruded tooth 25 at the bottom of the moving block 21 is meshed and connected with the rotating wheel 14, the materials drive the steel wire rope to move, the steel wire rope moves to drive the rotating wheel 14 to move, the rotating wheel 14 drives the protruded tooth 25 to move towards the left side, the protruded tooth 25 drives the moving plate 21 to move towards the left side, the left side inclined surface of the moving plate 21 rubs with the right side inclined surface of the fixed block 13 to push the fixed rod 13 to move downwards, the fixed rod 13 drives the push block 7 to move downwards, the push block 7 drives the fixed rod, the tighter the clamping plate 9 holds the wire rope.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.