Protection device for preventing anti-falling net of bridge crane from being damaged

Abstract

The utility model discloses a protection device for preventing an anti-falling net of a bridge crane from being damaged, which relates to the technical field of anti-falling net protection, and comprises a frame body, a walking trolley is movably arranged at the top of the frame body, a plurality of steel wire ropes are arranged at the bottom end of the walking trolley, the end parts of the steel wire ropes are connected with a grab bucket, and an anti-falling net slideway steel wire rope is arranged between the side walls of the frame body. An anti-falling net is movably arranged on the anti-falling net sliding way steel rope, the ends of the anti-falling net are arranged on the two sides of the walking trolley, mounting blocks are fixedly arranged on the side walls, close to the two sides of the anti-falling net, of the walking trolley, and limiting blocking beams are welded to the ends of the mounting blocks. The steel wire rope is in contact and friction with the limiting blocking beam, the steel wire rope is prevented from directly making contact with the anti-falling net in the up-down lifting and left-right swinging process, and therefore the effect of protecting the anti-falling net is achieved, and the phenomenon that the anti-falling net is broken or torn or wound by the grab bucket steel wire rope is reduced; and the falling safety risk of personnel in the daily maintenance operation process of the travelling crane is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anti-falling net protection, and particularly relates to a protection device for preventing damage of an anti-falling net of a bridge crane. BACKGROUND

[0002] The bridge crane is an important tool and equipment for realizing the mechanization and automation of the production process in modern industrial production and hoisting transportation, and has the characteristics of the widest use range and the largest number. It is widely used in indoor and outdoor warehouses, workshops, wharfs and open-air storage yards, and can be used for hoisting various materials and equipment.

[0003] During each left or right movement of the travelling trolley of the bridge crane, the anti-falling net installed and connected on both sides of the travelling trolley will be stretched and contracted along with the movement of the trolley. The weight of the grab bucket and the materials grabbed by the grab bucket is borne by the four lifting steel wires. When the trolley moves left or right, the grab bucket moves left or right along with the steel wires and will have a certain swing amplitude. When the trolley moves at a high speed or frequently, the upper end steel wire close to the trolley will contact, rub and wind the anti-falling net close to both sides during the swing. During the high-frequency operation of the grab bucket, the upper end of the steel wire rubs or winds the anti-falling net in different directions, which causes the anti-falling net to be broken, torn or wound by the steel wire of the grab bucket, and increases the falling safety risk of the staff during the daily maintenance and repair operation of the travelling crane. SUMMARY

[0004] The utility model aims to provide a protection device for preventing damage of an anti-falling net of a bridge crane, so as to solve the problem that the travelling trolley of the existing bridge crane is easy to cause the anti-falling net to be broken, torn or wound by the steel wire of the grab bucket during operation, and increases the falling safety risk of the staff during the daily maintenance and repair operation of the travelling crane.

[0005] A protection device for preventing damage of an anti-falling net of a bridge crane, comprising a frame body, a travelling trolley movably arranged on the top of the frame body, a plurality of steel wires arranged at the bottom end of the travelling trolley, a grab bucket connected to the end of the steel wire, an anti-falling net slide steel wire arranged between the side walls of the frame body, an anti-falling net movably arranged on the anti-falling net slide steel wire, the end of the anti-falling net arranged on both sides of the travelling trolley, a mounting block fixedly arranged on the side wall close to the anti-falling net on the travelling trolley, and a limiting blocking beam welded at the end of the mounting block.

[0006] Preferably, one end of the anti-falling net slide steel wire is fixedly arranged on the side wall of the frame body, and the other end is provided with a steel wire stretching adjuster. A clasp matched with the steel wire stretching adjuster is arranged on the side wall close to the steel wire stretching adjuster on the frame body, and the steel wire stretching adjuster is buckled in the clasp.

[0007] Preferably, the anti-falling net is penetrated through the anti-falling net slide steel rope by detachable hooks.

[0008] Preferably, the limiting blocking beam is made of galvanized steel pipe, and the weight of each limiting blocking beam is not more than 2 kg.

[0009] The utility model discloses the advantages lie in: a kind of protection device for preventing bridge crane anti-falling net damage in the utility model, by being provided with limiting blocking beam, so that steel wire rope and limiting blocking beam contact and rub, avoid steel wire rope up and down, left and right swing process directly contact anti-falling net, to play the role of protecting anti-falling net, reduce the phenomenon of anti-falling net fracture, be torn or be grabbed by grab steel wire rope winding, reduce the falling safety risk of staff in the process of routine maintenance operation of travelling crane, enhance the safety of device, by being provided with steel wire rope tensile adjuster, make anti-falling net slide steel rope always be in straightened state, avoid anti-falling net slide steel rope droop. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 It is the three-dimensional structure schematic diagram of the utility model.

[0011] Fig. 2 It is the structure schematic diagram of steel wire rope tensile adjuster in the utility model.

[0012] Fig. 3 It is the structure schematic diagram of limiting blocking beam in the utility model.

[0013] Among them, 100, trolley car;101, steel wire rope;102, grab;103, mounting block;104, limiting blocking beam;200, frame;201, anti-falling net slide steel rope;202, anti-falling net;203, detachable hook;204, steel wire rope tensile adjuster;205, buckle. DETAILED DESCRIPTION

[0014] To make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.

[0015] As Figs. 1 to 3As shown, a kind of protection device for preventing damage of bridge crane anti-falling net, including frame body 200, the movable top of the frame body 200 is equipped with travelling car 100, the bottom of the travelling car 100 is equipped with multiple steel wires 101, the end of the steel wire 101 is connected with grab bucket 102, the sidewall between the frame body 200 is equipped with anti-falling net slide steel rope 201, the movable anti-falling net 202 is equipped on the anti-falling net slide steel rope 201, the end of the anti-falling net 202 is located on the both sides of travelling car 100, the sidewall close to the both sides of anti-falling net 202 on the travelling car 100 is fixedly equipped with mounting block 103, the end of the mounting block 103 is welded with limiting blocking beam 104.

[0016] The travelling car 100 moves left and right on the frame body 200, drives the steel wire 101 to swing, and is easy to contact, rub and wind to the anti-falling net 202 close to both sides, by setting limiting blocking beam 104, the steel wire 101 is contacted and rubbed with limiting blocking beam 104, avoids the steel wire 101 to directly contact anti-falling net 202 in the process of up and down lifting and left and right swinging, thereby plays the role of protecting anti-falling net 202, reduces the phenomenon of anti-falling net 202 breaking, being torn or being wound by grab bucket steel wire, reduces the falling safety risk of staff in the process of daily maintenance and maintenance of travelling crane, enhances the safety of device.

[0017] In the embodiment, one end of the anti-falling net slide steel rope 201 is fixedly arranged on the sidewall of the frame body 200, the other end is provided with steel wire stretching adjuster 204, the sidewall close to the steel wire stretching adjuster 204 on the frame body 200 is provided with snap ring 205 matched with the steel wire stretching adjuster 204, and the steel wire stretching adjuster 204 is buckled in the snap ring 205.

[0018] The steel wire in the middle part of the fixedly arranged anti-falling net slide steel rope 201 is sagged due to gravity in actual operation process, so that the anti-falling net 202 on it is also sagged, once the grab bucket 102 swings back and forth in operation, the sagged anti-falling net 202 is easily wound, so that the anti-falling net 202 is wound and torn by the steel wire and damaged, by setting steel wire stretching adjuster 204, one end of the anti-falling net slide steel rope 201 is changed from the original fixed mode to the telescopic adjustment mode, so that the anti-falling net slide steel rope 201 is always in the straight state, thereby solving the problem that the anti-falling net 202 is wound and torn by the steel wire 101 due to the sagging of the anti-falling net slide steel rope 201.

[0019] In the embodiment, the anti-falling net 202 is arranged on the anti-falling net slide steel rope 201 through detachable hook 203.

[0020] The left and right movement of the walking trolley 100 can realize the stretching and contraction of the anti-falling net 202, and the anti-falling net 202 is prone to being stuck or damaged due to the small size of the hook during frequent movement back and forth in use, the detachable hook 203 with a slightly larger size is arranged, and the number of times of applying lubricating oil on the anti-falling net slide steel rope 201 is increased, so that the detachable hook 203 is prevented from being stuck or damaged, and the reliability and practicability of the device are improved.

[0021] In the embodiment, the limiting blocking beams 104 are made of galvanized steel pipes, and the weight of each limiting blocking beam 104 is not more than 2 kg.

[0022] The weight of the limiting blocking beams 104 is limited, so that the walking trolley 100 runs more stably.

[0023] Working process and principle: when the device is used, the one end of the anti-falling net slide steel rope 201 is changed from the original fixed mode to the telescopic adjustment mode through the setting of the steel wire rope stretching adjuster 204, so that the anti-falling net slide steel rope 201 is always in a straight state, the anti-falling net 202 is penetrated on the anti-falling net slide steel rope 201 by using the detachable hook 203 with a slightly larger size, and the number of times of applying lubricating oil on the anti-falling net slide steel rope 201 is increased, so that the detachable hook 203 is prevented from being stuck or damaged, the limiting blocking beams 104 are arranged on the side wall of the walking trolley 100, so that the steel wire rope 101 contacts and rubs against the limiting blocking beams 104, the anti-falling net 202 is prevented from being directly contacted during the upward and downward movement and left and right swing of the steel wire rope 101, so that the anti-falling net 202 is protected, the phenomenon of the anti-falling net 202 being broken, torn or wound by the grab steel wire is reduced, the falling safety risk of the worker during the daily maintenance operation of the device is reduced, and the safety of the device is enhanced.

[0024] As known from common technical knowledge, the utility model can be realized by other embodiments without departing from the spirit or essential characteristics thereof. Therefore, the above disclosed embodiments are only examples and are not the only ones. All changes within the scope of the utility model or within the scope equivalent to the utility model are included in the utility model.

Claims

1. A protection device for preventing damage to a fall arrest net of a bridge crane, characterized in that: Including frame body (200), the frame body (200) top activity is equipped with walking trolley (100), the walking trolley (100) bottom end is equipped with multiple steel wire ropes (101), the steel wire rope (101) end is connected with grab bucket (102), the frame body (200) side wall is equipped with the anti-falling net slide steel rope (201) between, the anti-falling net slide steel rope (201) is equipped with anti-falling net (202) movably, the anti-falling net (202) end is located in walking trolley (100) both sides, the walking trolley (100) is fixedly equipped with mounting block (103) on the side wall near the both sides of anti-falling net (202), the mounting block (103) end is welded with limit blocking beam (104).

2. A protection device for preventing damage to a fall arrest net of a bridge crane according to claim 1, characterized in that: One end of the anti-falling net slide steel rope (201) is fixed on the side wall of the frame body (200), and the other end is provided with a steel wire rope tensioning adjuster (204). A clasp ring (205) adapted to the steel wire rope tensioning adjuster (204) is arranged on the side wall of the frame body (200) near the steel wire rope tensioning adjuster (204). The steel wire rope tensioning adjuster (204) is buckled in the clasp ring (205).

3. A protection device for preventing damage to a fall arrest net of a bridge crane according to claim 2, characterized in that: The anti-falling net (202) is penetrated on the anti-falling net slide steel rope (201) by the detachable hook (203).

4. The protection device for preventing damage to the fall arrest net of the bridge crane according to claim 1, characterized in that: The limit blocking beam (104) is made of galvanized steel pipe, and the weight of each limit blocking beam (104) should not exceed 2 kg.

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