Anti-derailing device for crane

Abstract

The utility model discloses an anti-derailing device of a crane, and relates to the technical field of crane accessories. The anti-derailment device of the crane comprises a rail, a mounting seat, a reinforcing sheet, a connecting seat, the crane, rail wheels, guide wheels and a buffer assembly, the rail wheels rolling along the top end of the rail are mounted on the crane, and the connecting seat is locked and mounted on the crane through a connecting piece and welded to a mounting seat box. A guide wheel in guide fit along the side end of the track is mounted at the bottom end of the mounting seat and mounted on the mounting seat through a rotating rod, a pressure applying part is arranged in the guide wheel, the rotating rod is in clearance fit with the pressure applying part, and the pressure applying part extrudes the buffer assembly. Derailing is avoided through cooperation of the guide wheel and the rail, efficient buffering is conducted in the guide wheel through the buffering assembly, in other words, buffering is conducted through cooperation of oil in the oil cavity in the sealing shell and the buffering rod, and the buffering effect is enhanced through the spring. The contact stress degree of the guide wheel and the rail is reduced, and the service life of the guide wheel is indirectly prolonged.

Description

Technical Field

[0001] This utility model relates to the field of crane accessories technology, and more specifically to a crane anti-derailment device. Background Technology

[0002] Currently, due to the shallow flanges of the wheels on cranes, if one drive motor is running while the other is jammed during operation, the asynchronous movement of the two running mechanisms will generate significant torque. This torque can cause the wheels to derail, leading to a crane fall and a serious safety accident. Crane anti-derailment devices are designed to prevent crane wheels from derailing. However, these devices are subjected to stress when in operation. Without buffering, they are prone to damage due to excessive stress, thus reducing their service life. Utility Model Content

[0003] The purpose of this utility model is to provide a crane anti-derailment device in order to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] A crane anti-derailment device includes a rail, a mounting base, a reinforcing plate, a connecting base, a crane, rail wheels, guide wheels, and a buffer assembly. Rail wheels that roll along the top of the rail are mounted on the crane. The connecting base is locked to the crane via a connector. The connecting base is welded to the mounting base box, and the reinforcing plate enhances the stability of the connecting base and the mounting base. A guide wheel that guides along the side of the rail is mounted at the bottom of the mounting base. The guide wheel is mounted to the mounting base via a rotating rod. A pressure-applying component is installed inside the guide wheel. The rotating rod and the pressure-applying component are in clearance fit, and the pressure-applying component compresses the buffer assembly.

[0006] The crane primarily relies on guide wheels to move along the top of the track. To prevent derailment, guide wheels are used to restrict movement in conjunction with the track. The track itself has an I-shaped structure, with guide wheels extending into slots on the side of the track, allowing for longitudinal restriction. The side of the connecting seat adapts to and wraps around the crane structure, and then the connecting seat is installed on the crane using connectors. The mounting base is a planar structure for mounting the guide wheels, and it forms a stable structure with the connecting seat through reinforcing plates, optimizing the stability of the assembled structure.

[0007] A preferred technical solution: The buffer assembly includes a sealing shell, a buffer rod, and a spring. The buffer rod is slidably installed inside the sealing shell. An oil chamber is provided inside the sealing shell, and oil is provided in the oil chamber. The top of the buffer rod is used to seal and squeeze the oil.

[0008] The buffer rod squeezes the oil in the oil chamber, dispersing the force generated by the buffer rod and achieving a certain buffering effect; the oil buffers the upward force, and the spring buffers the downward force.

[0009] A preferred technical solution: The buffer rod has a T-shaped structure, and a spring is nested on the buffer rod, with the pressure-applying component connected to the buffer rod.

[0010] A preferred technical solution: The structure at the connection between the rotating rod and the pressure-applying component is a T-shaped structure, with a certain gap between the rotating rod and the pressure-applying component, allowing the rotating rod to rotate on the pressure-applying component. When the mounting base and the rotating rod are offset in the vertical direction, the rotating rod can drive the buffer rod to move through the pressure-applying component.

[0011] A preferred technical solution: A mounting cavity is provided inside the guide wheel, and a bearing is installed inside the mounting cavity, with the bearing nested on the outer surface of the rotating rod.

[0012] A preferred technical solution: A lubrication chamber is also provided above the bearing, and a sealing ring is installed on the lubrication chamber for sealing. Sufficient oil is reserved in the lubrication chamber to keep the ball bearing structure in an oil environment, thereby improving the lubrication effect and reducing the frictional loss between the rotating rod and the guide wheel to a certain extent.

[0013] A preferred technical solution: guide wheels are distributed on both sides of the track.

[0014] A preferred technical solution: the connector is a screw.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention prevents derailment by using a guide wheel that works in conjunction with the track. A buffer assembly provides efficient cushioning inside the guide wheel; specifically, oil in the sealed housing's oil chamber works in conjunction with a buffer rod, and a spring enhances the cushioning effect. This reduces the stress on the guide wheel in contact with the track, indirectly extending the guide wheel's lifespan. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the guide wheel;

[0019] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0020] Reference numerals: 1. Rail; 2. Mounting base; 3. Reinforcing plate; 4. Connecting base; 41. Connecting component; 5. Crane; 6. Rail wheel; 7. Guide wheel; 71. Rotating rod; 72. Pressure applying component; 73. Mounting cavity; 74. Bearing; 75. Lubrication cavity; 76. Sealing ring; 8. Buffer assembly; 81. Sealing shell; 811. Oil cavity; 82. Buffer rod; 83. Spring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] like Figures 1 to 3 As shown, this embodiment provides a crane anti-derailment device, including a rail 1, a mounting base 2, a reinforcing plate 3, a connecting base 4, a crane 5, a rail wheel 6, a guide wheel 7, and a buffer assembly 8. The rail wheel 6, which rolls along the top of the rail 1, is installed on the crane 5. The connecting base 4 is locked onto the crane 5 by a connecting piece 41. The connecting base 4 is welded to the mounting base 2, and the stability of the connecting base 4 and the mounting base 2 is enhanced by the reinforcing plate 3. The bottom of the mounting base 2 is equipped with a guide wheel 7 that guides and cooperates with the side of the rail 1. The guide wheel 7 is installed on the mounting base 2 by a rotating rod 71. A pressure member 72 is provided inside the guide wheel 7. The rotating rod 71 and the pressure member 72 are in clearance fit, and the pressure member 72 compresses the buffer assembly 8.

[0024] Furthermore, the buffer assembly 8 includes a sealing shell 81, a buffer rod 82, and a spring 83. The buffer rod 82 is slidably installed inside the sealing shell 81. An oil cavity 811 is provided inside the sealing shell 81, and oil is provided inside the oil cavity 811. The top of the buffer rod 82 seals and squeezes the oil.

[0025] The buffer rod 82 is used to squeeze the oil in the oil chamber 811, which disperses the force generated by the buffer rod 82 and achieves a certain buffering effect; the upward force is buffered by the oil and the downward force is buffered by the spring 83.

[0026] Furthermore, the buffer rod 82 has a T-shaped structure, and a spring 83 is nested on the buffer rod 82, with the pressure-applying component 72 connected to the buffer rod 82.

[0027] Furthermore, the structure at the connection between the rotating rod 71 and the pressure-applying component 72 is a T-shaped structure, with a certain gap between the rotating rod 71 and the pressure-applying component 72, allowing the rotating rod 71 to rotate on the pressure-applying component 72. When the mounting base 2 and the rotating rod 71 are offset in the vertical direction, the rotating rod 71 can drive the buffer rod 82 to move through the pressure-applying component 72.

[0028] Furthermore, a mounting cavity 73 is provided inside the guide wheel 7, and a bearing 74 is provided inside the mounting cavity 73, with the bearing 74 nested on the outer surface of the rotating rod 71.

[0029] Furthermore, a lubrication cavity 75 is provided above the bearing 74, and a sealing ring 76 is provided on the lubrication cavity 75 for sealing. Sufficient oil is reserved in the lubrication cavity 75 to keep the ball structure inside the bearing 74 in an oil environment, thereby improving the lubrication effect and reducing the frictional loss between the rotating rod 71 and the guide wheel 7 to a certain extent.

[0030] Furthermore, guide wheels 7 are distributed on both sides of track 1.

[0031] Furthermore, connector 41 is a screw.

[0032] In use, the guide wheels 7 are installed on the mounting base 2 and symmetrically arranged on both sides of the track 1, with some guide wheels 7 extending into the groove of the track 1. When the track wheel 6 on the crane 5 disengages from the track 1, the guide wheel 7 will contact the track 1 structure upwards. At this time, the rotating rod 71 will drive the pressure applying component 72 to move upwards. An installation cavity 73 is provided inside the guide wheel 7. Excluding the sealing shell 81 and the bearing 74 structure, there is a space for the pressure applying component 72 to move vertically. When the pressure applying component 72 moves upwards, it drives the buffer rod 82 to move. The oil in the oil cavity 811 inside the sealing shell 81 and the spring 83 nested on the buffer rod 82 work together to buffer the movement. Through the cooperation of the above structures, the guide wheel 7 is effectively buffered, reducing the stress on the guide wheel 7 and the track 1, and indirectly improving the service life of the guide wheel 7.

Claims

1. A crane anti-derailing device, characterized in that, Including track, mounting seat, reinforcing sheet, connecting seat, crane, track wheel, guide wheel, buffer assembly, the crane is installed track wheel rolling along the top end of the track, the connecting seat is locked and installed on the crane through the connecting piece, the connecting seat is welded with the mounting seat box, and the stability of the connecting seat and the mounting seat is reinforced through the reinforcing sheet, the bottom end of the mounting seat is provided with a guide wheel matched with the guide along the side end of the track, the guide wheel is installed in the mounting seat through the rotating rod, the guide wheel is provided with a pressing piece, the rotating rod and the pressing piece are gap matched, and the pressing piece extrudes the buffer assembly.

2. A rail derailment prevention device for a crane according to claim 1, characterised in that The buffer assembly comprises a sealing shell, a buffer rod and a spring, the buffer rod is slidably installed in the sealing shell, an oil cavity is arranged in the sealing shell, and oil is arranged in the oil cavity, and the top end of the buffer rod is sealed and extruded oil.

3. A derailment prevention device for a crane according to claim 2, characterised in that The buffer rod is T-shaped structure, and the spring is nested on the buffer rod, and the pressing piece is connected with the buffer rod.

4. The anti-derailing device for cranes according to claim 1, characterized in that, The structure of the connecting part of the rotating rod and the pressing piece is T-shaped structure.

5. The anti-derailing device for cranes according to claim 1, characterized in that, The guide wheel is provided with an installation cavity, the installation cavity is provided with a bearing, and the bearing is nested on the outer surface of the rotating rod.

6. A derailment prevention device for a crane according to claim 5, characterised in that The bearing is also provided with a lubricating cavity above, and a sealing ring is arranged on the lubricating cavity.

7. The anti-derailing device for cranes according to claim 1, characterized in that, The guide wheel is distributed on both sides of the track.

8. The anti-derailing device for cranes according to claim 1, characterized in that, The connecting piece is a screw.

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