Novel cart track limiting device of bridge crane

Abstract

The utility model discloses a novel cart track limiting device of a bridge crane, belongs to the technical field of cranes, and solves the problem that the existing limiting device is inconvenient to disassemble and assemble. The device comprises a U-shaped shell and a limiting seat, the width of the inner wall of the U-shaped shell is larger than that of a track, a cover plate is arranged at one end of the U-shaped shell, the bottom face and the top face of the cover plate are flush with the bottom face and the top face of the U-shaped shell respectively, the limiting seat is fixed to the top of the U-shaped shell, the width of the limiting seat is smaller than that of the U-shaped shell, and the limiting seat is fixed to the top of the U-shaped shell. One end of the limiting base extends to the middle of the cover plate, the height of the limiting base is gradually reduced along one end of the cover plate, and a lifting hole is formed in the end, away from the cover plate, of the limiting base. The limiting device can be placed on tracks on the two sides of a temporary overhaul area anytime and anywhere, the overhaul time is shortened to a large extent, and the effect of overhaul safety can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, and more specifically, to a novel bridge crane trolley track limiting device. Background Art

[0002] Due to the busy production on site, steel production enterprises use bridge cranes frequently. A production line usually has multiple bridge cranes operating at the same time. When one of the bridge cranes fails or a certain area of ​​the track needs to be repaired, the adjacent cranes need to continue to operate. At this time, a track limit device with stable use effect is needed to prevent the adjacent cranes in the maintenance area from losing control or the operator's misoperation causing the crane to enter the maintenance area, causing personal safety accidents for the maintenance workers. The existing track limit device generally fixes a baffle on the track with bolts, so the maintenance personnel need to wear a safety belt and step out of the safety guardrail, and use special tools to complete the installation or removal on the track. This operation process is time-consuming and requires a certain degree of professionalism. There are great safety hazards in the process of installing or removing the track limit device.

[0003] Therefore, it is urgent to design a new type of bridge crane trolley track limiting device to solve the above-mentioned problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a novel bridge crane trolley track limiting device in view of the above-mentioned deficiencies in the prior art, which can be placed on the tracks on both sides of the temporary maintenance area anytime and anywhere, greatly shortening the maintenance time and achieving the effect of maintenance safety.

[0005] The technical solution of the utility model is as follows: a new type of bridge crane trolley track limiting device, including a U-shaped shell and a limiting seat, the inner wall width of the U-shaped shell is greater than the width of the track, a cover plate is provided at one end of the U-shaped shell, the bottom and top surfaces of the cover plate are respectively flush with the bottom and top surfaces of the U-shaped shell, the limiting seat is fixed at the top of the U-shaped shell, the width of the limiting seat is smaller than the width of the U-shaped shell, one end of the limiting seat extends to the middle of the cover plate, and the height of the limiting seat gradually decreases along one end of the cover plate, and a hanging hole is provided on the end of the limiting seat away from the cover plate.

[0006] As a further improvement, the U-shaped shell, cover plate and limit seat are all made of 12 mm thick Q235 steel plates.

[0007] Furthermore, the U-shaped shell and the cover plate are an integrated structure, and the limit seat is fixed on the central axis of the U-shaped shell by welding.

[0008] Furthermore, a rubber pad is provided at the bottom of the inner wall of the U-shaped shell.

[0009] Furthermore, the height of the inner wall of the U-shaped shell is smaller than the height of the track.

[0010] Furthermore, transversely arranged telescopic columns are provided on both sides of the inner wall of the U-shaped shell, a pressure plate is provided at one end of the telescopic column away from the inner wall of the U-shaped shell, and a spring is sleeved on the telescopic column between the pressure plate and the inner wall of the U-shaped shell.

[0011] Furthermore, both upper and lower ends of the pressing plate are provided with inclined surfaces.

[0012] Beneficial Effects

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The limit device of the utility model, by providing a U-shaped shell and a limit seat on the U-shaped shell, can directly place the U-shaped shell on the track on one side of the bridge crane to be repaired before maintenance, so that the U-shaped shell and the cover plate are in contact with the top surface of the track. Once the bridge crane moves and enters the cover plate, the cover plate and the U-shaped shell will be under pressure, thereby increasing the friction between them and the track and reducing the risk of slippage of the U-shaped shell. The limit seat can prevent the bridge crane from crossing over, effectively blocking adjacent cranes from entering the maintenance area, and ensuring the personal safety of maintenance personnel in the maintenance area. The device is placed on the track movably and can be placed on the tracks on both sides of the temporary maintenance area at any time and anywhere. After confirming that the maintenance is completed, the track limit device can be removed to restore the normal operation of the crane. No tools are required during the disassembly and assembly of the track limit device, which greatly shortens the maintenance time and achieves the effect of maintenance safety.

[0015] 2. The limit device of the utility model is provided with telescopic columns, springs and pressure plates on both sides of the inner wall of the U-shaped shell. When the U-shaped shell is sleeved on the track, the pressure plates are pressed on both sides of the track. This not only increases the friction between the U-shaped shell and the track, further reducing the risk of overall slippage of the limit device, but also prevents the limit device from overall slippage by utilizing the interference between the pressure plate and the fastening screws of the track itself, thus providing higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the main structure during application;

[0019] Figure 4 for Figure 3 A schematic diagram of the structure enlargement at the center A;

[0020] Figure 5 It is a side view structural schematic diagram of the utility model when it is applied;

[0021] Figure 6 for Figure 5 A schematic diagram of the enlarged structure at point A in the middle.

[0022] Among them: 1-U-shaped shell, 2-limit seat, 3-track, 4-cover plate, 5-lifting hole, 6-rubber pad, 7-telescopic column, 8-pressure plate, 9-spring, 10-inclined surface, 11-fastening bolt, 12-bridge crane. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0024] See also Figure 1-6 The utility model discloses a new type of bridge crane trolley track limiting device, comprising a U-shaped shell 1 and a limiting seat 2, wherein the inner wall width of the U-shaped shell 1 is greater than the width of the track 3, ensuring that the U-shaped shell 1 can be sleeved on the track 3, and a cover plate 4 is provided at one end of the U-shaped shell 1, and the bottom surface and the top surface of the cover plate 4 are respectively flush with the bottom surface and the top surface of the U-shaped shell 1, ensuring that the bottom surfaces of the U-shaped shell 1 and the cover plate 4 can contact the top surface of the track 3, and through the setting of the cover plate 4, the space between the limiting device and the track 3 can be increased. The contact area between the two increases the friction between them and reduces the risk of the overall slippage of the limiting device. The limiting seat 2 is fixed on the top of the U-shaped shell 1. The width of the limiting seat 2 is smaller than the width of the U-shaped shell 1, which can effectively reduce the weight of the limiting device. One end of the limiting seat 2 extends to the middle of the cover plate 4, and the height of the limiting seat 2 gradually decreases along one end of the cover plate 3, which plays a role in limiting the bridge crane 12. A lifting hole 5 is provided on the end of the limiting seat 2 away from the cover plate 4 to facilitate the removal of the entire limiting device.

[0025] The limiting device of the present invention, by providing a U-shaped shell 1 and a limiting seat 2 on the U-shaped shell 1, can directly place the U-shaped shell 1 on the track 3 on one side of the bridge crane to be repaired before maintenance, so that the U-shaped shell 1 and the cover plate 3 are fitted on the top surface of the track 3. Once the bridge crane moves and enters the cover plate 4, the cover plate 4 and the U-shaped shell 1 will be under pressure, thereby increasing the friction between them and the track 3 and reducing the risk of slippage of the U-shaped shell 1, while the limiting seat 2 can prevent the bridge crane from crossing over, effectively blocking the adjacent cranes from entering the maintenance area, and ensuring the personal safety of the maintenance personnel in the maintenance area. The device is placed on the track movably and can be placed on the tracks on both sides of the temporary maintenance area at any time and anywhere. After confirming that the maintenance is completed, the track limiting device can be removed to restore the normal operation of the crane. No tools are required during the disassembly and assembly of the track limiting device, which greatly shortens the maintenance time and achieves the effect of maintenance safety.

[0026] Preferably, the U-shaped shell 1, the cover plate 4 and the limiting seat 2 are all made of 12 mm thick Q235 steel plates, which are convenient for material acquisition, and the structural strength of the entire limiting device can also meet the use requirements.

[0027] Preferably, the U-shaped shell 1 and the cover plate 4 are of an integrated structure, which effectively improves the structural strength of the two. The limit seat 2 is fixed on the central axis of the U-shaped shell 1 by welding, which is convenient for welding and fixing.

[0028] Preferably, a rubber pad 6 is provided at the bottom of the inner wall of the U-shaped shell 1. The rubber pad 6 is in contact with the track 3, which can effectively increase the friction force and avoid the problem of rigid collision.

[0029] Preferably, the inner wall height of the U-shaped shell 1 is less than the height of the track 3, ensuring that the inner wall bottom surface of the U-shaped shell 1 can contact the top surface of the track 3, thereby forming a support and avoiding the problem of deformation and damage of the U-shaped shell 1 when under pressure.

[0030] Preferably, transversely arranged telescopic columns 7 are provided on both sides of the inner wall of the U-shaped shell 1, and a pressing plate 8 is provided at one end of the telescopic column 7 away from the inner wall of the U-shaped shell 1. A spring 9 is sleeved on the telescopic column 7 between the pressing plate 8 and the inner wall of the U-shaped shell 1. The spring 9 pushes the pressing plate 8 out in a natural state so that the inclined surfaces 10 at the upper and lower ends thereof are aligned with the edges of both sides of the track 3. Inclined surfaces 10 are provided at the upper and lower ends of the pressing plate 8 to facilitate the U-shaped shell 1 to be pressed onto the track 3.

[0031] The limiting device of this embodiment is configured with telescopic columns 7, springs 9 and pressure plates 8 on both sides of the inner wall of the U-shaped shell 1. When the U-shaped shell 1 is sleeved on the track 3, the pressure plates 8 are pressed on both sides of the track 3. This not only increases the friction between the U-shaped shell 1 and the track 3, further reducing the risk of the limiting device slipping as a whole, but also prevents the limiting device from slipping as a whole by interfering with the fastening screws of the track itself, thereby providing higher safety.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A new type of bridge crane trolley track limiter, characterized in that: The invention comprises a U-shaped shell (1) and a limit seat (2), wherein the inner wall width of the U-shaped shell (1) is greater than the width of the track (3), a cover plate (4) is provided at one end of the U-shaped shell (1), the bottom surface and the top surface of the cover plate (4) are respectively flush with the bottom surface and the top surface of the U-shaped shell (1), the limit seat (2) is fixed to the top of the U-shaped shell (1), the width of the limit seat (2) is less than the width of the U-shaped shell (1), one end of the limit seat (2) extends to the middle of the cover plate (4), and the height of the limit seat (2) gradually decreases along one end of the cover plate (4), and a hanging hole (5) is provided on the end of the limit seat (2) away from the cover plate (4).

2. A new type of bridge crane trolley track limiting device according to claim 1, characterized in that: The U-shaped shell (1), cover plate (4) and limit seat (2) are all made of Q235 steel plates with a thickness of 12 mm.

3. The novel bridge crane trolley track limiting device according to claim 1 is characterized in that: The U-shaped shell (1) and the cover plate (4) are an integrated structure, and the limit seat (2) is fixed on the central axis of the U-shaped shell (1) by welding.

4. The novel bridge crane trolley track limiting device according to claim 1 is characterized in that: A rubber pad (6) is provided at the bottom of the inner wall of the U-shaped shell (1).

5. The novel bridge crane trolley track limiting device according to claim 1 is characterized in that: The height of the inner wall of the U-shaped shell (1) is smaller than the height of the track (3).

6. A new type of bridge crane trolley track limiting device according to any one of claims 1 to 5, characterized in that: Transversely arranged telescopic columns (7) are provided on both sides of the inner wall of the U-shaped shell (1); a pressure plate (8) is provided at one end of the telescopic column (7) away from the inner wall of the U-shaped shell (1); and a spring (9) is sleeved on the telescopic column (7) between the pressure plate (8) and the inner wall of the U-shaped shell (1).

7. A new type of bridge crane trolley track limiter according to claim 6, characterized in that: The upper and lower ends of the pressing plate (8) are both provided with inclined surfaces (10).

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