CN212050321U

CN212050321U - Overload protection device of tower crane

Info

Publication number: CN212050321U
Application number: CN202020601444.1U
Authority: CN
Inventors: 高钰敏; 刘艳; 付梦哲; 杨英; 李巍; 屈斌; 杨开翔
Original assignee: Weite Technologies Co ltd
Current assignee: Weite Technologies Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-12-01
Anticipated expiration: 2030-04-21

Abstract

The utility model belongs to the technical field of the protective apparatus, especially, be an overload protection device of tower crane, to the problem that overload protection device of current hoist is not perfect enough, the following scheme is proposed at present, and it includes the base, top one side fixed mounting of base has the riser, and the inner wall fixed mounting of riser has the cavity post, and the inboard slidable mounting of cavity post has the outside of slide bar, and the one end fixed mounting of slide bar has the one end of first spring. The utility model discloses realize reminding workman overloaded function, through the rack and the gear that set up, the area makes first spring stretched when putting the material of thing frame inside transshipping to drive the rack and remove to the outside of well cavity post, when rack and gear engagement, gear anticlockwise rotation, thereby make the horizon bar remove left, make the inside alarm lamp upward movement of well cavity section of thick bamboo, thereby remind workman's device overload problem to appear.

Description

Overload protection device of tower crane

Technical Field

The utility model relates to a protection equipment technical field especially relates to a tower crane's overload protection device.

Background

The crane is a common large-scale device in factories and construction sites, is used for lifting heavy construction materials such as reinforcing steel bars and plates, and is an essential device in factories and construction sites. The crane winds and releases the steel wire rope through the motor on the cross beam, so that heavy objects are hoisted. However, when the weight of the heavy object borne by the overload protection device exceeds the bearing limit of the crane, the crane is inevitably damaged and causes accidents, the overload of the crane directly causes the failure or even burning of the motor, and the heavy object falls off from the air in the hoisting process, so that serious potential safety hazards are brought to constructors and construction facilities, and therefore the overload protection device of the tower crane is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defect that the overload protection device of the existing crane is not perfect enough, and providing the overload protection device of the tower crane.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an overload protection device of a tower crane comprises a base, wherein a vertical plate is fixedly mounted on one side of the top of the base, a hollow column is fixedly mounted on the inner wall of the vertical plate, the outer side of a sliding rod is slidably mounted on the inner side of the hollow column, one end of the sliding rod is fixedly mounted with one end of a first spring, the other end of the first spring is fixedly mounted on the inner wall of the hollow column, the other end of the sliding rod extends to the outer side of the hollow column and is rotatably mounted with a pulley, the bottom end of a vertical rod is fixedly mounted on one side of the top of the sliding rod, the top end of the vertical rod extends to the outer side of the hollow column and is fixedly mounted with the bottom of a fixed block, the bottom of a rack is fixedly mounted on the top of the fixed block, a gear is rotatably mounted on the outer side of the vertical plate, a round shaft is fixedly mounted on the front side of, the bottom of second spring is fixedly mounted on the inner wall of the bottom of the hollow cylinder, the bottom of the transverse plate is fixedly mounted at the top end of the second spring, the transverse plate is slidably connected inside the hollow cylinder, the alarm lamp is fixedly mounted at the top of the transverse plate, the other end of the horizontal rod extends to the inside of the hollow cylinder, and the bottom of the horizontal rod is movably connected with the top of the transverse plate.

Preferably, the bottom four corners of base all rotates and installs the universal wheel, and top one side fixed mounting of riser has the horizontal pole, and the transportation that whole device can be nimble is made in the setting of universal wheel.

Preferably, the top of base is rotated and is installed the reel, and the bottom of horizontal pole and the top of base are all rotated and are installed fixed pulley, and the setting of reel can be so that wire rope is wound and is established thereby obtaining the function of rising the material.

Preferably, the top of base is equipped with the removal pulley, and the bottom swing joint of removing the pulley has puts the thing frame, puts the setting of thing frame and can be used for bearing the material that needs the transportation.

Preferably, the pulley, the fixed pulley, the reel and the movable pulley are wound with the same steel wire rope, and the steel wire rope can be used for safely transporting materials.

Preferably, the through-hole has been seted up at the top of cavity post, the outside swing joint of pole setting is in the inboard of through-hole, and the setting of through-hole provides certain scope for the motion of pole setting.

In the utility model, the overload protection device of the tower crane can be used for bearing materials to be transported through the arranged object placing frame, and meanwhile, the universal wheels arranged at the bottom of the base can flexibly transport the whole device;

the utility model discloses a rack and the gear that set up, the area makes first spring stretched when putting the inside material of thing frame and transshipping to drive the rack and remove to the outside of well cavity post, when rack and gear engagement, gear anticlockwise rotation, thereby make the horizon bar remove left, make the inside alarm lamp upward movement of well cavity section of thick bamboo, thereby remind workman's device to appear overloaded problem.

Drawings

Fig. 1 is a schematic structural view of an overload protection device of a tower crane according to the present invention;

fig. 2 is a schematic structural diagram of a part a of an overload protection device of a tower crane according to the present invention.

In the figure: 1. a base; 2. a vertical plate; 3. a cross bar; 4. a universal wheel; 5. a storage frame; 6. a wire rope; 7. a pulley; 8. a slide bar; 9. a hollow column; 10. a first spring; 11. erecting a rod; 12. a fixed block; 13. a rack; 14. a gear; 15. a circular shaft; 16. a mullion; 17. a horizontal bar; 18. an alarm lamp; 19. a transverse plate; 20. a second spring; 21. a reel; 22. fixing the pulley; 23. a movable pulley; 24. a hollow cylinder.

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.

Referring to fig. 1-2, an overload protection device of a tower crane comprises a base 1, a vertical plate 2 is fixedly installed on one side of the top of the base 1, a hollow column 9 is fixedly installed on the inner wall of the vertical plate 2, the outer side of a sliding rod 8 is slidably installed on the inner side of the hollow column 9, one end of the sliding rod 8 is fixedly installed with one end of a first spring 10, the other end of the first spring 10 is fixedly installed on the inner wall of the hollow column 9, the other end of the sliding rod 8 extends to the outer side of the hollow column 9 and is rotatably installed with a pulley 7, the bottom end of a vertical rod 11 is fixedly installed on one side of the top of the sliding rod 8, the top end of the vertical rod 11 extends to the outer side of the hollow column 9 and is fixedly installed with the bottom of a fixed block 12, the bottom of a rack 13 is fixedly installed on the top of the fixed block 12, a gear 14 is rotatably installed on, the outside fixed mounting of mullion 16 has the one end of horizon bar 17, the top one side fixed mounting of cavity post 9 has a cavity section of thick bamboo 24, fixed mounting has the bottom of second spring 20 on the bottom inner wall of cavity section of thick bamboo 24, the top fixed mounting of second spring 20 has the bottom of diaphragm 19, the outside sliding connection of diaphragm 19 is in the inside of cavity section of thick bamboo 24, the top fixed mounting of diaphragm 19 has alarm lamp 18, the other end of horizon bar 17 extends to the inside of cavity section of thick bamboo 24, the bottom of horizon bar 17 and the top swing joint of diaphragm 19.

The utility model discloses in, base 1's bottom four corners is all rotated and is installed universal wheel 4, and top one side fixed mounting of riser 2 has horizontal pole 3, and the setting up of universal wheel 4 makes the transportation that whole device can be nimble.

The utility model discloses in, reel 21 is installed in the top rotation of base 1, and the bottom of horizontal pole 3 all rotates with base 1's top and installs fixed pulley 22, thereby reel 21's setting can be so that wire rope 6 is by the function that obtains the rise material around establishing.

The utility model discloses in, base 1's top is equipped with removes pulley 23, and the bottom swing joint that removes pulley 23 has puts thing frame 5, and the setting of putting thing frame 5 can be used for bearing the material that needs the transportation.

The utility model discloses in, around being equipped with same wire rope 6 on pulley 7, fixed pulley 22, reel 21 and the movable pulley 23, wire rope 6 sets up transportation that the material can be safe.

The utility model discloses in, the through-hole has been seted up at the top of well hollow column 9, and the outside swing joint of pole setting 11 provides certain scope for the motion of pole setting 11 in the inboard of through-hole, the setting of through-hole.

The working principle of the overload protection device is as follows: through the gear 14, the device realizes automatic operation when in use, when the material inside the object placing frame 5 is overloaded, the pulley 7 can drive the sliding rod 8 to slide rightwards, so as to drive the rack 13 to move the same, when the rack 13 moves to be meshed with the gear 14, the gear 14 is driven to rotate anticlockwise, so that the round shaft 15 at the front side of the gear 14 starts to rotate, so that the vertical frame 16 and the horizontal rod 17 start to move leftwards, the second spring 20 drives the alarm lamp 18 inside the hollow cylinder 24 to move upwards in the resetting process, thereby arousing the attention of staff, increasing the flexibility of the device, realizing the diversity of the device, solving different problems and realizing a mode of sustainable development, the utility model has simple structure and reasonable design, can effectively improve the working environment of the staff and improve the automation, the problems of complexity and the like of manual operation are reduced, and the method has strong practical value.

Claims

1. The utility model provides an overload protection device of tower crane, including base (1), a serial communication port, top one side fixed mounting of base (1) has riser (2), the inner wall fixed mounting of riser (2) has well cavity post (9), the inboard slidable mounting of well cavity post (9) has the outside of slide bar (8), the one end fixed mounting of slide bar (8) has the one end of first spring (10), the other end fixed mounting of first spring (10) is on the inner wall of well cavity post (9), the other end of slide bar (8) extends to the outside of well cavity post (9) and rotates and installs pulley (7), the bottom of top one side fixed mounting of slide bar (8) has pole setting (11), the top of pole setting (11) extends to the outside of well cavity post (9) and fixed mounting has the bottom of fixed block (12), the top fixed mounting of fixed block (12) has the bottom of rack (13), the outside of riser (2) is rotated and is installed gear (14), the front side fixed mounting of gear (14) has round axle (15), the outside movable sleeve of round axle (15) is equipped with mullion (16), the outside fixed mounting of mullion (16) has the one end of horizon bar (17), top one side fixed mounting of well cavity post (9) has well cavity section of thick bamboo (24), fixed mounting has the bottom of second spring (20) on the bottom inner wall of well cavity section of thick bamboo (24), the top fixed mounting of second spring (20) has the bottom of diaphragm (19), the outside sliding connection of diaphragm (19) is in the inside of well cavity section of thick bamboo (24), the top fixed mounting of diaphragm (19) has alarm lamp (18), the other end of horizon bar (17) extends to the inside of well cavity section of thick bamboo (24), the bottom of horizon bar (17) and the top swing joint of diaphragm (19).

2. The overload protection device for the tower crane according to claim 1, wherein four corners of the bottom of the base (1) are rotatably provided with universal wheels (4), and one side of the top of the vertical plate (2) is fixedly provided with a cross rod (3).

3. The overload protection device for the tower crane according to claim 1, wherein a reel (21) is rotatably mounted on the top of the base (1), and a fixed pulley (22) is rotatably mounted on the bottom of the cross bar (3) and the top of the base (1).

4. The overload protection device of the tower crane according to claim 1, wherein a movable pulley (23) is arranged above the base (1), and a storage frame (5) is movably connected to the bottom of the movable pulley (23).

5. The overload protection device for the tower crane according to claim 1, wherein the same steel wire rope (6) is wound on the pulley (7), the fixed pulley (22), the reel (21) and the movable pulley (23).

6. The overload protection device for the tower crane according to claim 1, wherein a through hole is formed in the top of the hollow column (9), and the outer side of the upright rod (11) is movably connected to the inner side of the through hole.