Single-beam travelling crane cart running wheel anti-derailing device

Abstract

The utility model relates to a single -beam travelling crane cart running wheel anti -derailing device, and end plate is connected with the end of end beam through bolt, the middle line position of end plate is connected in parallel with the collision seat through the support plate of vertical connection, and the below of end plate, support plate and collision seat are all connected perpendicularly with the positioning plate, and the inside of collision block is fixedly connected with one end of guide column, and the other end of guide column is provided with screw rod, and the through -hole connection of screw rod and collision seat middle, and the outer periphery of guide column is equipped with spring, and the anti -derailing wheel of the positioning plate below located support plate both sides is installed through the stud bolt axle, prevent the derailment accident of travelling crane, improve hoisting operation efficiency, promote hoisting operation essential safety, effectively guarantee the running safety of travelling crane cart, improve the use ratio of equipment and save the equipment maintenance cost, greatly prolong the service life of equipment.

Description

Technical Field

[0001] This utility model relates to safety auxiliary equipment for single-girder cranes, and in particular to a device for preventing derailment of the running wheels of a single-girder crane. Background Technology

[0002] A single-girder overhead crane, also known as a single-beam crane, is a type of crane that moves along a single beam. It is widely used in various industrial plants, warehouses, docks, and other locations, and is an indispensable part of modern industrial production. It mainly consists of a trolley (beam), end beams, traveling mechanism, auxiliary trolley, motors, reducers, stoppers, and rails. The traveling mechanism of the single-girder overhead crane is called the trolley traveling mechanism. This mechanism consists of two motors, two reducers, and four trolley traveling wheels (two driving wheels and two driven wheels) mounted on both sides of the end beam. Anti-collision rubber blocks are installed at the ends of the end beams to provide cushioning against impacts.

[0003] Single-girder overhead cranes, due to their light weight and large span, present several operational challenges. In practice, issues such as track defects from prolonged use, improper operation, or asynchrony between the two drive motors, coupled with damage to the anti-collision rubber blocks at the end beams from long-term impacts, frequently cause the four traveling wheels to bounce up and down during operation. This results in lateral displacement of the traveling wheels along the track, and significant displacement can lead to derailment, causing a crane derailment accident. Derailment accidents severely impact daily lifting efficiency, pose significant safety risks, and increase the workload for maintenance personnel. Utility Model Content

[0004] This utility model provides a device to prevent the traveling wheels of a crane from derailing, thereby preventing crane derailment accidents, improving hoisting operation efficiency, and enhancing the safety of hoisting equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution. A single-beam trolley traveling wheel anti-derailment device includes an end plate, which is bolted to the end of an end beam; the centerline of the end plate is connected parallel to a collision seat via a vertically connected support plate; a through hole is provided in the middle of the collision seat; the end plate, support plate, and the lower part of the collision seat are all vertically connected to a positioning plate; the inner side of the positioning plate is connected to the bottom plate of the end beam; the inner side of the collision block is fixedly connected to one end of a guide post; a screw is provided at the other end of the guide post, and the screw is connected to the through hole in the middle of the collision seat; a spring is fitted around the outer periphery of the guide post; a clearance groove is provided on the support plate corresponding to the screw; anti-derailment wheels are installed below the positioning plates located on both sides of the support plate via double-headed screw shafts.

[0006] Furthermore, the anti-derailment wheel is cylindrical with a stepped inner hole, and a bearing is installed on the step. A nylon bushing is installed on the bearing, and the double-ended screw shaft passes through the nylon bushing and the bearing in sequence and connects to the bottom of the positioning plate.

[0007] Furthermore, the support plate is in the shape of a right trapezoid, with its lower base perpendicularly connected to the end plate and its upper base perpendicularly connected to the collision seat.

[0008] Furthermore, the inner side of the anti-derailment wheel is in contact with the two outer sides of the rail head, and the lower end of the anti-derailment wheel is lower than the lower edge of the rail head.

[0009] Furthermore, the end beam is equipped with running wheels, and the outer circumference of the running wheels is in contact with the rail head surface.

[0010] Furthermore, the spring is a compression spring.

[0011] This utility model modifies the end of the crane's end beam by removing the original rectangular rubber bumper block and installing a circular collision block with a spring. Two anti-derailment wheels are installed below the collision block and on the outer sides of the traveling wheels. This prevents the traveling wheels of the crane from derailing, thus preventing crane derailment accidents, improving hoisting efficiency, enhancing the inherent safety of hoisting operations, effectively ensuring the safe operation of the crane, increasing equipment utilization, saving equipment maintenance costs, and greatly extending the service life of the equipment. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is the front view of this utility model;

[0014] Figure 3 yes Figure 2 The left view;

[0015] Figure 4 This is a partial cross-sectional view of the mounting structure of the collision block 4 and the spring 10 in this utility model;

[0016] Figure 5 This is a cross-sectional structural diagram of the anti-derailment wheel 6 in this utility model.

[0017] In the diagram: 1. Traveling wheel, 2. End plate, 3. Bolt, 4. Collision block, 41. Guide post; 5. Track, 6. Anti-derailment wheel, 61. Bearing, 62. Nylon bushing, 63. Double-ended screw shaft; 7. Positioning plate, 8. Collision seat, 9. Support plate, 10. Spring, 11. Screw, 12. Relief groove, 13. End beam. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. See also Figures 1 to 5A single-girder trolley traveling wheel anti-derailment device, wherein a traveling wheel 1 is installed inside the end beam 13, and the outer circumference of the traveling wheel 1 is in contact with the rail head surface of the track 5 (e.g. Figure 1 (As shown). End plate 2 is connected to the end of end beam 13 by bolts 3; the centerline of rectangular end plate 2 is connected parallel to collision seat 8 by a vertically connected support plate 9. Support plate 9 is a right trapezoid, with its lower base perpendicularly connected to end plate 2 and its upper base perpendicularly connected to collision seat 8 (as shown). Figure 2 (As shown). A through hole is provided in the middle of the collision seat 8. The end plate 2, support plate 9, and the lower part of the collision seat 8 are all vertically connected to the positioning plate 7. The inner side of the positioning plate 7 is connected to the bottom plate of the end beam 13. The inner side of the collision block 4 is fixedly connected to one end of the guide post 41. A screw 11 is provided at the other end of the guide post 41, and the screw 11 is connected to the through hole in the middle of the collision seat 8. A spring 10 is fitted around the outer periphery of the guide post 41. The spring 10 is a compression spring (such as...). Figure 1 , Figure 2 and Figure 4 (As shown); a clearance groove 12 is provided at the corresponding position of the support plate 9 and the screw 11. When the collision block 4 and the guide post 41 push the screw 11 to move backward, the clearance groove 12 can avoid the space for the screw 11 to move backward. Anti-derailment wheels 6 (as shown) are symmetrically installed below the positioning plates 7 on both sides of the support plate 9 via double-headed screw shafts 63. Figure 3 (As shown). The anti-derailment wheel 6 is cylindrical with a stepped inner hole, and a bearing 61 is mounted on the step. A nylon bushing 62 is mounted on the bearing 61. The double-ended screw shaft 63 passes through the nylon bushing 62 and the bearing 61 in sequence and connects to the bottom of the positioning plate 7 (as shown). Figure 5 (As shown). The inner side of the anti-derailment wheel 6 contacts the two outer sides of the rail head of the track 5, and the lower end of the anti-derailment wheel 6 is lower than the lower edge of the rail head of the track 5. The nylon bushing 62 is used to fix and press the bearing 61 to prevent the bearing 61 from moving axially.

[0019] Example: In this utility model, the end plate 2 is a rectangular steel plate, which is fixed to the end of the end beam 13 by bolts 3; the inner side of the support plate 9 is vertically welded to the middle of the end plate 2, and the bumper seat 8 is vertically welded to the outer side of the support plate 9. The bumper seat 8 is parallel to the end plate 2. A spring 10 is installed between the collision block 4 and the collision seat 8. The installation of the collision block 4 can effectively play the role of buffering the single beam trolley. The positioning plate 7 is vertically welded to the bottom of the bumper seat 8 and the end plate 2, and is connected to the bottom plate of the end beam 13; two anti-derailment wheels 6 are symmetrically installed on the left and right sides of the positioning plate 7 by double-headed screw shafts 63. The inner distance between the two anti-derailment wheels 6 corresponds to the width of the rail head of the track 5, and the lower end of the anti-derailment wheel 6 is lower than the lower edge of the rail head.

[0020] When the single-girder trolley travels, the traveling wheel 1 may bounce up, down, left, and right for various reasons, causing it to shift laterally along the track 5. If the displacement is too large, the traveling wheel 1 may derail from the track 5. The improved collision block 4 in this device creates space below the end plate 2 for installing the anti-derailment wheel 6, effectively reducing the impact force when the trolley collides with the track stop and decreasing the bouncing of the traveling wheel 1. Two anti-derailment wheels 6 are located on either side of the track 5, with their lower surfaces below the rail head. When the traveling wheel 1 shifts laterally, regardless of its direction, one anti-derailment wheel 6 will contact the side of the track 5, generating a resisting force opposite to the lateral movement of the traveling wheel 1, thus preventing excessive lateral movement and derailment.

[0021] The application of this utility model prevents excessive lateral movement of the trolley's traveling wheels 1, thus preventing derailment. This effectively ensures the safe operation of the trolley, improves the utilization rate of the equipment, reduces maintenance costs caused by derailment, and extends the service life of the equipment.

Claims

1. A device for preventing derailment of the traveling wheels of a single-girder trolley, characterized in that, The device includes an end plate, which is bolted to the end of an end beam. The centerline of the end plate is connected to a collision seat in parallel via a vertically connected support plate. A through hole is provided in the middle of the collision seat. The end plate, support plate, and the lower part of the collision seat are all vertically connected to a positioning plate. The inner side of the positioning plate is connected to the bottom plate of the end beam. The inner side of the collision block is fixedly connected to one end of a guide post. A screw is provided at the other end of the guide post, and the screw is connected to the through hole in the middle of the collision seat. A spring is fitted around the outer periphery of the guide post. A clearance groove is provided on the support plate corresponding to the screw. Anti-derailment wheels are installed below the positioning plates on both sides of the support plate via double-headed screw shafts.

2. The anti-derailment device for the traveling wheels of a single-girder trolley according to claim 1, characterized in that, The anti-derailment wheel is cylindrical with a stepped inner hole. A bearing is installed on the step, and a nylon bushing is installed on the bearing. The double-ended screw shaft passes through the nylon bushing and the bearing in sequence and connects to the bottom of the positioning plate.

3. The anti-derailment device for the traveling wheels of a single-girder trolley according to claim 1, characterized in that, The support plate is a right trapezoid, with its lower base perpendicularly connected to the end plate and its upper base perpendicularly connected to the collision seat.

4. The anti-derailment device for the traveling wheels of a single-girder trolley according to claim 1, characterized in that, The inner side of the anti-derailment wheel is in contact with the two outer sides of the rail head, and the lower end of the anti-derailment wheel is lower than the lower edge of the rail head.

5. The anti-derailment device for the traveling wheels of a single-girder trolley according to claim 1, characterized in that, The end beam is equipped with running wheels, and the outer circumference of the running wheels is in contact with the rail head surface.

6. The anti-derailment device for the traveling wheels of a single-girder trolley according to claim 1, characterized in that, The spring is a compression spring.

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