CN216038369U

CN216038369U - Hoisting mechanism for tower crane

Info

Publication number: CN216038369U
Application number: CN202121742518.4U
Authority: CN
Inventors: 段建伟
Original assignee: Mingli Heavy Industry Group Co ltd
Current assignee: Mingli Heavy Industry Group Co ltd
Priority date: 2021-07-25
Filing date: 2021-07-25
Publication date: 2022-03-15
Anticipated expiration: 2031-07-25

Abstract

A lifting mechanism for a tower crane comprises a tower crane lifting mechanism, a roller, a pressing wheel and a supporting seat, wherein the left end and the right end of the outer side of the roller are both rotatably connected with the supporting seat, the tower crane hoisting mechanism is fixedly connected with the supporting seat, the outer side of the pressing wheel is fixedly and rotatably connected with a positioning block, the top end of the positioning block is fixedly connected with a positioning rod, the outer side of the positioning rod is connected with a limiting block in a sliding way, through the arrangement of the pressing wheel, the positioning block, the positioning rod, the limiting block, the first spring, the supporting rod, the connecting block, the sliding block and the second spring, when in use, the pressing wheel is clamped on the steel wire, then the sliding block is pushed by the second spring in the connecting block, the sliding block drives the supporting rod to slide in the connecting block, so that the supporting rod drives the pressing wheel to move back and forth, then the positioning block is driven by the pressing wheel to be extruded by the positioning rod to the first spring, so that vibration of the steel wire rope is reduced.

Description

Hoisting mechanism for tower crane

Technical Field

The utility model relates to the technical field of building construction equipment, in particular to a lifting mechanism for a tower crane.

Background

The tower crane hoisting mechanism is a basic component which is necessary for the tower crane and is used for lifting and operating objects, a hoisting motor drives a winding drum to rotate through a coupling via a hollow shaft of a speed reducer, so that a steel wire rope or a cable wire wound on the winding drum drives a hook device to ascend or descend, corresponding couplings and supporting frames are required to be configured according to different hoisting heights, and the working performance of the whole tower crane is directly influenced by the working quality of the hoisting mechanism.

When the tower crane hoisting mechanism is used, a possible steel wire rope can shake due to tension, so that the hoisting of a tower crane can be influenced, the drum can jump to a drum rotating shaft in the running process, the normal use of the tower crane hoisting mechanism is influenced, the drum of the tower crane hoisting mechanism is not provided with a safety device, and the drum can be independently rotated when the tower crane hoisting mechanism is used, so that the steel wire rope falls.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hoisting mechanism for a tower crane, which aims to solve the problem that a steel wire rope shakes and even falls off in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a tower machine is with mechanism that rises, includes tower machine hoisting mechanism, cylinder, presses pinch roller and supporting seat, both ends all rotate about the cylinder outside and are connected with the supporting seat, tower machine hoisting mechanism and supporting seat fixed connection, press pinch roller outside fixed rotation to be connected with the locating piece, locating piece top fixedly connected with locating lever, locating lever outside sliding connection has the stopper, the equal fixedly connected with bracing piece in both ends about the stopper, bracing piece bottom fixedly connected with slider, slider outside sliding connection has the connecting block, connecting block rear end fixedly connected with second spring, second spring and connecting block fixed connection, bracing piece and connecting block sliding connection.

Preferably, the front end of the inner side of the supporting seat is slidably connected with a push block, the outer side of one end, close to the center of the roller, of the push block is fixedly connected with a third spring, the third spring is fixedly connected with the supporting seat, the front end of the push block is fixedly connected with a fixed plate, the outer side of one end, close to the center of the roller, of the fixed plate is fixedly connected with a stop block, the outer side of the fixed plate is slidably connected with a supporting block, the bottom end of the supporting block is fixedly connected with an electric telescopic rod, and the electric telescopic rod is fixedly connected with a tower crane lifting mechanism.

Preferably, the front end face of each supporting block is in a trapezoidal arrangement, the number of the supporting blocks is two, and the supporting blocks are symmetrically distributed at the left end and the right end of the front end of the roller.

Preferably, the front end face of each supporting rod is arranged in an L shape, the number of the supporting rods is two, and the supporting rods are symmetrically distributed at the left end and the right end of the rear end of the roller.

Preferably, the pressing wheel is made of high manganese steel material and is positioned at the rear end of the roller.

Preferably, the connecting block is fixedly connected with a tower crane hoisting mechanism, and the connecting block is arranged in a hollow manner.

Preferably, the left end face of dog is cylindricly set up, and the dog has two, the dog is both ends about the cylinder outside that symmetric distribution is.

Preferably, the lower end of the limiting block is connected with a first spring in a sliding mode, and the first spring is connected with the positioning block in a sliding mode.

Compared with the prior art, the utility model has the beneficial effects that:

1. through the arrangement of the pressing wheel, the positioning block, the positioning rod, the limiting block, the first spring, the supporting rod, the connecting block, the sliding block and the second spring, when the tower crane hoisting mechanism is used, the pressing wheel is clamped on a steel wire, then the sliding block is pushed through the second spring in the connecting block, so that the sliding block drives the supporting rod to slide in the connecting block, the supporting rod drives the pressing wheel to move back and forth, then the positioning block is driven through the pressing wheel, the positioning block extrudes the first spring through the positioning rod, and therefore the vibration of the steel wire rope is reduced, and the tower crane hoisting mechanism is more stable when the tower crane hoisting mechanism is used;

2. through ejector pad, third spring, fixed plate, dog, supporting shoe and the electric telescopic handle that sets up, when using, drive the supporting shoe through electric telescopic handle, make the supporting shoe promote the fixed plate, make the fixed plate pass through the ejector pad and extrude the third spring in the supporting seat, then make the fixed plate drive the dog card and advance in the round hole in the cylinder, stop the cylinder, prevent that the cylinder from reversing, prevent that the article of promotion from overweight leads to the cylinder rotation, increased certain security.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 at point A according to the present invention;

fig. 3 is a schematic view of the mounting structure of the support rod of the present invention.

In the figure: 1-a tower crane lifting mechanism, 2-a pressing wheel, 3-a supporting seat, 4-a positioning block, 5-a positioning rod, 6-a limiting block, 7-a first spring, 8-a supporting rod, 9-a connecting block, 10-a sliding block, 11-a second spring, 12-a pushing block, 13-a third spring, 14-a fixing plate, 15-a stopping block, 16-a supporting block, 17-an electric telescopic rod and 18-a roller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the tower crane lifting mechanism comprises a tower crane lifting mechanism 1, a roller 18, a pressing wheel 2 and a supporting seat 3, wherein the supporting seat 3 is rotatably connected to the left end and the right end of the outer side of the roller 18, the tower crane lifting mechanism 1 is fixedly connected with the supporting seat 3, the positioning block 4 is fixedly and rotatably connected to the outer side of the pressing wheel 2, the positioning rod 5 is fixedly connected to the top end of the positioning block 4, the limiting block 6 is slidably connected to the outer side of the positioning rod 5, the supporting rod 8 is fixedly connected to the left end and the right end of the limiting block 6, the slider 10 is fixedly connected to the bottom end of the supporting rod 8, the connecting block 9 is slidably connected to the outer side of the slider 10, the second spring 11 is fixedly connected to the rear end of the connecting block 9, the second spring 11 is fixedly connected to the connecting block 9, and the supporting rod 8 is slidably connected to the connecting block 9.

The front end of the inner side of the supporting seat 3 is slidably connected with a push block 12, the outer side of one end of the push block 12 close to the center of the roller 18 is fixedly connected with a third spring 13, the third spring 13 is fixedly connected with the supporting seat 3, the front end of the push block 12 is fixedly connected with a fixed plate 14, the outer side of one end of the fixed plate 14 close to the center of the roller 18 is fixedly connected with a stop block 15, the outer side of the fixed plate 14 is slidably connected with a supporting block 16, the bottom end of the supporting block 16 is fixedly connected with an electric telescopic rod 17, the electric telescopic rod 17 is fixedly connected with a tower crane lifting mechanism 1, the stop block 15 is clamped into the roller 18, the roller 18 is prevented from rotating due to heavier lifted objects, the front end surface of the supporting block 16 is in a trapezoidal arrangement, the number of the two supporting blocks 16 is provided, the two supporting blocks 16 are symmetrically distributed at the left end and the right end of the front end of the roller 18, the stop block 15 is conveniently aligned with the front end of the L-shaped arrangement, the two supporting rods 8 are symmetrically distributed at the left end and the right end of the rear end of the roller 18, to fixing a position according to pinch roller 2, the elasticity of pinch roller 2 pinch-off cock, pinch-off cock 2 is high manganese steel material, and pinch-off cock 2 is located cylinder 18 rear end, it is convenient to compress tightly wire rope, connecting block 9 and 1 fixed connection of tower crane hoisting mechanism, and connecting block 9 is hollow setting, make bracing piece 8 slide in connecting block 9, the distance of pinch roller 2 is pressed in the adjustment, the left end face of dog 15 is cylindric setting, and dog 15 has two, dog 15 is both ends about 18 outsides of symmetric distribution, reduce the effort when cylinder 18 rotates, 6 lower extreme sliding connection of stopper has first spring 7,

first spring

7 and 4 sliding connection of locating piece, prevent wire rope vibration.

When the lifting mechanism is used, the pressing wheel 2 is clamped on a steel wire rope, the sliding block 10 is pushed through the second spring 11 in the connecting block 9, the sliding block 10 drives the supporting rod 8 to slide in the connecting block 9, the supporting rod 8 drives the pressing wheel 2 to move back and forth, the positioning block 6 is driven through the pressing wheel 2, the positioning block 6 extrudes the first spring 7 through the positioning rod 5, vibration of the steel wire rope is reduced, the lifting mechanism 1 of the tower crane is more stable when in use, the supporting block 16 is driven through the electric telescopic rod 17, the supporting block 16 pushes the fixing plate 14, the fixing plate 14 extrudes the third spring 13 in the supporting seat 3 through the pushing block 12, the fixing plate 14 drives the check block 15 to be clamped in a round hole in the roller 18, the roller 18 is limited, the roller is prevented from being reversed, the lifted object is prevented from rotating due to overweight, and certain safety is increased.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tower machine is with mechanism that rises, includes tower machine hoisting mechanism (1), cylinder (18), pinch roller (2) and supporting seat (3), its characterized in that: both ends are all rotated and are connected with supporting seat (3) about cylinder (18) outside, tower machine hoisting mechanism (1) and supporting seat (3) fixed connection, rotate according to pinch roller (2) outside and be connected with locating piece (4), locating piece (4) top fixedly connected with locating lever (5), locating lever (5) outside sliding connection has stopper (6), equal fixedly connected with bracing piece (8) in both ends about stopper (6), bracing piece (8) bottom fixedly connected with slider (10), slider (10) outside sliding connection has connecting block (9), connecting block (9) rear end fixedly connected with second spring (11), second spring (11) and connecting block (9) fixed connection, bracing piece (8) and connecting block (9) sliding connection.

2. A lifting mechanism for a tower crane according to claim 1, characterized in that: the inner side front end of the supporting seat (3) is slidably connected with a push block (12), the push block (12) is close to a third spring (13) fixedly connected to the outer side of one end of the center of the roller (18), the third spring (13) is fixedly connected with the supporting seat (3), the front end of the push block (12) is fixedly connected with a fixing plate (14), the fixing plate (14) is close to a stop block (15) fixedly connected to the outer side of one end of the center of the roller (18), a supporting block (16) is slidably connected to the outer side of the fixing plate (14), an electric telescopic rod (17) is fixedly connected to the bottom end of the supporting block (16), and the electric telescopic rod (17) is fixedly connected with a tower crane lifting mechanism (1).

3. A lifting mechanism for a tower crane according to claim 2, characterized in that: the front end face of each supporting block (16) is in a trapezoidal arrangement, the number of the supporting blocks (16) is two, and the supporting blocks (16) are symmetrically distributed at the left end and the right end of the front end of the roller (18).

4. A lifting mechanism for a tower crane according to claim 1, characterized in that: the front end of the supporting rod (8) is L-shaped, the number of the supporting rods (8) is two, and the supporting rods (8) are symmetrically distributed at the left end and the right end of the rear end of the roller (18).

5. A lifting mechanism for a tower crane according to claim 1, characterized in that: the pressing wheel (2) is made of high manganese steel material, and the pressing wheel (2) is positioned at the rear end of the roller (18).

6. A lifting mechanism for a tower crane according to claim 1, characterized in that: the connecting block (9) is fixedly connected with the tower crane hoisting mechanism (1), and the connecting block (9) is arranged in a hollow mode.

7. A lifting mechanism for a tower crane according to claim 2, characterized in that: the left end face of the stop block (15) is arranged in a cylindrical mode, the number of the stop blocks (15) is two, and the stop blocks (15) are symmetrically distributed at the left end and the right end of the outer side of the roller (18).

8. A lifting mechanism for a tower crane according to claim 1, characterized in that: the lower end of the limiting block (6) is connected with a first spring (7) in a sliding mode, and the first spring (7) is connected with the positioning block (4) in a sliding mode.