CN212076264U

CN212076264U - Crane overload protection device capable of preventing collision and damage of hoisting weight

Info

Publication number: CN212076264U
Application number: CN202020574463.XU
Authority: CN
Inventors: 代永利; 孙超; 张利峰; 梁旭
Original assignee: Luoyang Crane Factory Co ltd
Current assignee: Luoyang Crane Factory Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-12-04
Anticipated expiration: 2030-04-17

Abstract

The utility model discloses a crane overload protection device capable of preventing collision damage of hoisting weight, which comprises an electric hoist body, a steel wire rope, a lifting hook, a driving motor and an overload limiter, wherein the steel wire rope is arranged in the electric hoist body, the driving motor is fixedly arranged on the right side of the electric hoist body, a control box is fixedly arranged on the back of the driving motor, the overload limiter is fixedly arranged at the middle part of the upper end of a transverse plate, a fixing bolt is arranged on the lateral side of an outer cover, a connecting rod is arranged at the inner end of a baffle plate, the end part of the connecting rod is arranged on a sliding block, the sliding block is arranged in a side block, a limit column is fixedly connected on the inner side of the baffle plate, an inner plate is fixedly arranged in the outer cover, and the crane overload protection device capable of preventing collision damage of hoisting weight can play a good dustproof, avoid the dust to pile up in a large number on overload protection device, can play certain buffering guard action simultaneously.

Description

Crane overload protection device capable of preventing collision and damage of hoisting weight

Technical Field

The utility model relates to a hoist technical field specifically is a can prevent hanging hoist overload protection device that heavy collision damaged.

Background

The crane is a lifting mechanical device capable of vertically lifting and horizontally carrying a heavy object within a certain range, so that the crane becomes an indispensable machine in various fields in industrial production, the heavy object which is difficult to move manually can be lifted and conveyed by the crane, the working speed in industrial production is improved, and at present, in order to prevent the electric hoist mounted on the crane from being overloaded, an overload protection device is usually additionally mounted on the electric hoist.

However, the existing overload protection device has the following problems:

1. the existing overload protection device does not have a certain buffer protection function, so that the overload protection device is easily damaged by collision in the process of hoisting;

2. the existing overload protection device is inconvenient to play a good dustproof protection role in use, and dust is easily accumulated on the overload protection device due to long-time use.

Aiming at the problems, the overload protection device is innovatively designed on the basis of the original overload protection device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can prevent hanging hoist overload protection device that heavy collision damaged to propose current overload protection device self in solving above-mentioned background art and do not possess certain buffering guard action, thereby lead to overload protection device to collide the damage easily at the in-process that hangs heavily, be not convenient for play good dustproof guard action when using, lead to the dust to carry out a large amount of accumulations problem on overload protection device because of long-time use easily.

In order to achieve the above object, the utility model provides a following technical scheme: a crane overload protection device capable of preventing collision damage of a hoisting weight comprises an electric hoist body, a steel wire rope, a lifting hook, a driving motor and an overload limiter, wherein the steel wire rope is installed inside the electric hoist body, the lower end of the steel wire rope is fixedly installed on the lifting hook, the driving motor is fixedly installed on the right side of the electric hoist body, a control box is fixedly installed on the back of the driving motor, a transverse plate is fixedly installed at the upper end of the control box, the overload limiter is fixedly installed in the middle of the upper end of the transverse plate, an outer cover is installed on the outer side of the overload limiter, a fixing bolt is installed on the lateral side of the outer cover, a baffle is installed on the lateral side of the outer cover, a connecting rod is installed at the inner end of the baffle, the end of the connecting rod is installed on a sliding block, the sliding block, the inner side of the baffle is fixedly connected with a limiting column, the inner end of the limiting column is arranged on the built-in plate, the built-in plate is fixedly arranged in the outer cover, and a compression spring is connected between the built-in plate and the limiting column.

Preferably, the lower end of the outer cover and the upper end of the transverse plate are attached to each other, and the outer cover and the transverse plate are connected with each other through fixing bolts.

Preferably, the baffle is evenly distributed on the outer side of the outer cover, and a welding integrated structure is arranged between the inner end of the baffle and the limiting column.

Preferably, through connecting rod interconnect between sliding block and the baffle, and all be connected for articulated formula between the tip of connecting rod for sliding block and baffle.

Preferably, the outer wall of the sliding block and the inner wall of the side block are mutually attached, and a sliding connection structure is formed between the sliding block and the side block.

Preferably, a sliding connection structure is formed between the limiting column and the outer side of the built-in plate, and the built-in plate is uniformly distributed on the inner side of the outer cover.

Compared with the prior art, the beneficial effects of the utility model are that: the crane overload protection device capable of preventing collision damage of the hoisting weight can play a good dustproof protection role when in use, prevents a large amount of dust from being accumulated on the overload protection device, and can play a certain buffer protection role at the same time;

1. the overload limiter is provided with an outer cover, the outer cover is arranged on the outer side of the overload limiter, a certain dustproof protection effect can be achieved on the overload limiter when the overload limiter is used, meanwhile, the side edge of the outer cover and the transverse plate are mutually connected through a fixing bolt, and the outer cover can be conveniently detached and installed through the fixing bolt;

2. be provided with the baffle, the motion of baffle can make the sliding block move in the inside of side piece under the effect of connecting rod, thereby the motion of sliding block plays certain cushioning effect under buffer spring's effect, and the motion of baffle can make spacing post move in the inside of built-in board simultaneously, and the motion of spacing post on the built-in board can play further buffering guard action under compression spring's effect.

Drawings

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

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

FIG. 3 is a schematic sectional view of the cover of the present invention;

fig. 4 is the schematic view of the sectional structure of the sliding block and the side block of the present invention.

In the figure: 1. an electric hoist body; 2. a wire rope; 3. a hook; 4. a drive motor; 5. a control box; 6. a transverse plate; 7. an overload limiter; 8. a housing; 9. fixing the bolt; 10. a baffle plate; 11. a connecting rod; 12. a slider; 13. a side block; 14. a buffer spring; 15. a limiting column; 16. a built-in plate; 17. compressing the spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a crane overload protection device capable of preventing collision damage of a hoisting load comprises an electric hoist body 1, a steel wire rope 2, a lifting hook 3, a driving motor 4, a control box 5, a transverse plate 6, an overload limiter 7, an outer cover 8, a fixing bolt 9, a baffle plate 10, a connecting rod 11, a sliding block 12, a side block 13, a buffer spring 14, a limiting column 15, a built-in plate 16 and a compression spring 17, wherein the steel wire rope 2 is installed inside the electric hoist body 1, the lower end of the steel wire rope 2 is fixedly installed on the lifting hook 3, the driving motor 4 is fixedly installed on the right side of the electric hoist body 1, the control box 5 is fixedly installed on the back of the driving motor 4, the transverse plate 6 is fixedly installed on the upper end of the control box 5, the overload limiter 7 is fixedly installed in the middle of the upper end of the transverse plate 6, the outer cover 8 is installed on the outer side of the overload limiter 7, the fixing bolt, connecting rod 11 is installed to the inner of baffle 10, and the tip of connecting rod 11 is installed on sliding block 12, and sliding block 12 is installed in the inside of side piece 13, and is connected with buffer spring 14 between side piece 13 and the sliding block 12, the inboard fixedly connected with spacing post 15 of baffle 10, and the inner of spacing post 15 is installed on built-in plate 16, and built-in plate 16 fixed mounting is in the inside of dustcoat 8, and is connected with compression spring 17 between built-in plate 16 and the spacing post 15.

The lower extreme of dustcoat 8 and the upper end of diaphragm 6 laminate each other, and through fixing bolt 9 interconnect between dustcoat 8 and the diaphragm 6, can make things convenient for the dismantlement installation between dustcoat 8 and the diaphragm 6 through fixing bolt 9.

Baffle 10 evenly distributed is in the outside of dustcoat 8, and for welding integrated configuration between the inner of baffle 10 and spacing post 15, and the motion of baffle 10 can drive spacing post 15 and carry out synchronous motion.

Sliding block 12 and baffle 10 are connected with each other through connecting rod 11, and sliding block 12 and baffle 10 are connected with the tip of connecting rod 11 for articulated formula, and the outer wall of sliding block 12 and the inner wall of side piece 13 are laminated each other, and constitute sliding connection structure between sliding block 12 and the side piece 13, and the motion of baffle 10 can make sliding block 12 slide in the inside of side piece 13 under the effect of connecting rod 11.

A sliding connection structure is formed between the limiting columns 15 and the outer sides of the built-in plates 16, the built-in plates 16 are uniformly distributed on the inner side of the outer cover 8, and certain buffering effect can be achieved under the action of the compression springs 17 through the movement of the limiting columns 15 on the built-in plates 16.

The working principle is as follows: when the crane overload protection device capable of preventing collision damage of hoisting load is used, firstly, as shown in fig. 1-4, an overload limiter 7 is installed at the upper end of a transverse plate 6, an outer cover 8 is installed on the outer side of the overload limiter 7, a certain dustproof protection effect can be achieved on the overload limiter 7 through the outer cover 8, meanwhile, the outer cover 8 and the transverse plate 6 are mutually connected through a fixing bolt 9, and the outer cover 8 and the transverse plate 6 can be conveniently detached and installed through the fixing bolt 9;

as shown in fig. 3 and 4, when a heavy object is hung, the overload limiter 7 is mounted inside the outer cover 8, when the outer cover 8 is impacted by an external force, the external force contacts the baffle 10, the baffle 10 is stressed to enable the connecting rod 11 to drive the sliding block 12 to slide inside the side block 13, the movement of the sliding block 12 can play a certain role in buffering under the action of the buffer spring 14, meanwhile, the movement of the baffle 10 can enable the limit column 15 to move on the built-in plate 16, and the movement of the limit column 15 can play a further role in buffering under the action of the compression spring 17, so that the overload limiter 7 is prevented from being damaged due to the impact of the external force.

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.

Claims

1. The utility model provides a can prevent hoist overload protection device that heavy collision damaged, includes electric block body (1), wire rope (2), lifting hook (3), driving motor (4) and overload limiter (7), its characterized in that: the electric hoist comprises an electric hoist body (1), wherein a steel wire rope (2) is mounted inside the electric hoist body (1), the lower end of the steel wire rope (2) is fixedly mounted on a lifting hook (3), a driving motor (4) is fixedly mounted on the right side of the electric hoist body (1), a control box (5) is fixedly mounted on the back of the driving motor (4), a transverse plate (6) is fixedly mounted on the upper end of the control box (5), an overload limiter (7) is fixedly mounted in the middle of the upper end of the transverse plate (6), an outer cover (8) is mounted on the outer side of the overload limiter (7), a fixing bolt (9) is mounted on the lateral side of the outer cover (8), a baffle (10) is mounted on the lateral side of the outer cover (8), a connecting rod (11) is mounted at the inner end of the baffle (10), the end of the connecting rod (11) is mounted on a sliding block (, and a buffer spring (14) is connected between the side block (13) and the sliding block (12), a limiting column (15) is fixedly connected to the inner side of the baffle (10), the inner end of the limiting column (15) is installed on the built-in plate (16), the built-in plate (16) is fixedly installed in the outer cover (8), and a compression spring (17) is connected between the built-in plate (16) and the limiting column (15).

2. The crane overload protection device capable of preventing collision damage of the hoisting weight according to claim 1, wherein: the lower end of the outer cover (8) is attached to the upper end of the transverse plate (6), and the outer cover (8) and the transverse plate (6) are connected with each other through a fixing bolt (9).

3. The crane overload protection device capable of preventing collision damage of the hoisting weight according to claim 1, wherein: the baffle (10) is uniformly distributed on the outer side of the outer cover (8), and a welding integrated structure is arranged between the inner end of the baffle (10) and the limiting column (15).

4. The crane overload protection device capable of preventing collision damage of the hoisting weight according to claim 1, wherein: sliding block (12) and baffle (10) are connected through connecting rod (11) each other between, and are connected for articulated formula between the tip of sliding block (12) and baffle (10) all with connecting rod (11).

5. The crane overload protection device capable of preventing collision damage of the hoisting weight according to claim 1, wherein: the outer wall of sliding block (12) and the inner wall of side piece (13) laminate each other, and constitute sliding connection structure between sliding block (12) and side piece (13).

6. The crane overload protection device capable of preventing collision damage of the hoisting weight according to claim 1, wherein: and a sliding connection structure is formed between the limiting columns (15) and the outer side of the built-in plate (16), and the built-in plate (16) is uniformly distributed on the inner side of the outer cover (8).