Self-adjusting crane explosion-proof wheel set

By introducing specific components into the explosion-proof wheel set of the self-adjusting crane, the problems of inconvenient lubrication and poor bolt limiting effect are solved, improving the smoothness and installation stability of the wheel set and achieving better shock absorption and explosion-proof performance.

CN224258120UActive Publication Date: 2026-05-19HENAN TUOKE HOISTING MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN TUOKE HOISTING MASCH CO LTD
Filing Date
2025-06-18
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing self-adjusting crane explosion-proof wheel sets suffer from inconvenience in adding lubricating oil and poor bolt limiting effect, affecting the smoothness of wheel movement and installation stability.

Method used

An explosion-proof wheel assembly was designed, comprising components such as a cavity seat, damper, shock absorber spring, guide block, bearing seat, bearing, round rod, wheel, oil reservoir, U-shaped plate, return spring, sealing baffle, and positioning slider. Lubricating oil is added by opening and closing the sealing baffle, smoothness is improved by the damper and shock absorber spring, and installation stability is improved by the limit spring and positioning block.

Benefits of technology

It enables convenient addition of lubricating oil, improves the smoothness of wheel rotation, reduces bolt loosening, and enhances the installation stability and explosion-proof effect of the wheel assembly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a self-adjusting crane explosion-proof wheel set, which relates to the technical field of cranes, in particular to a self-adjusting crane explosion-proof wheel set, which comprises a connecting plate and a disc, a cavity seat is mounted at the bottom of the disc, a damper and a damping spring are respectively mounted on the inner top wall of the cavity seat, a guide block is mounted at one end of the damping spring, and the other end of the damping spring is connected with the connecting plate. A bearing seat is installed at the bottom of the guide block, a round rod is rotationally connected into the bearing seat through a bearing, and wheels are installed at the two ends of the round rod. The self-adjusting crane explosion-proof wheel set has the effects of conveniently adding lubricating oil to the bearings of the wheel set and improving the rotation smoothness of the wheels, lubricating oil is added to the bearings through the oil storage cavities, the oil storage cavities are conveniently exposed or closed through the sealing baffles, lubricating oil is conveniently added, and the wheels are convenient to move; and through cooperation of a damper and a damping spring, the buffering and damping effects are facilitated, the anti-explosion effect is achieved, and the purpose of improving practicability is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically to a self-adjusting explosion-proof crane wheel set. Background Technology

[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. Cranes are suitable for maintenance and loading / unloading work in light to medium-duty machine shops, warehouses, material yards, and hydroelectric power stations, and are widely used lifting equipment in China. Crane tires can burst when traveling on bumpy roads for extended periods. To extend the lifespan of crane tires, explosion-proof wheel sets are typically used to protect them.

[0003] Existing self-adjusting explosion-proof crane wheel sets have drawbacks. The wheel movement is difficult to adjust the lubricating oil, affecting the smoothness of the wheel movement and hindering its movement. Furthermore, most existing self-adjusting explosion-proof crane wheel sets are installed using bolts, which have poor bolt positioning, leading to bolt loosening and falling, affecting installation stability. The invention of a self-adjusting explosion-proof crane wheel set solves these problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a self-adjusting explosion-proof crane wheel set, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a self-adjusting explosion-proof crane wheel assembly, comprising a connecting plate and a disc. A cavity seat is installed at the bottom of the disc. A damper and a shock-absorbing spring are respectively installed on the inner top wall of the cavity seat. A guide block is installed at one end of the shock-absorbing spring. A bearing seat is installed at the bottom of the guide block. A round rod is rotatably connected to the bearing seat through a bearing. Wheels are installed at both ends of the round rod. An oil storage cavity is opened inside the bearing seat. A U-shaped plate is installed at the front of the bearing seat. A return spring is installed inside the U-shaped plate. A sealing baffle is installed at one end of the return spring. Positioning sliders are installed on both sides of the sealing baffle. A push block is installed at the front of the sealing baffle. A limit spring and a guide rod are respectively installed on the inner wall of the cavity seat. A limit baffle is installed at one end of the limit spring. A guide hole is opened inside the limit baffle. Threaded holes are opened inside the connecting plate and the disc. Bolts are installed inside the threaded holes. A positioning block is installed on the top of the disc.

[0008] Optionally, the side of the sealing baffle away from the push block abuts against the bearing housing, and the position of the oil reservoir corresponds to the position of the sealing baffle and the bearing, respectively.

[0009] Optionally, the inner wall of the U-shaped plate is provided with a positioning groove with the left and right direction as the depth direction and the up and down direction as the length direction. The end of the positioning slider is located inside the positioning groove, and the positioning slider can slide along the length direction of the positioning groove.

[0010] Optionally, the end of the guide block away from the bearing housing is located inside the cavity housing, and the damper is fixedly connected to the guide block.

[0011] Optionally, the guide rod passes through the guide hole, the top of the limiting baffle abuts against the end of the bolt, and the end of the limiting baffle is located inside the cavity seat.

[0012] Optionally, the bottom of the connecting plate is provided with a positioning groove in the vertical direction as the depth direction, the end of the positioning block is inserted into the positioning groove, and the top of the disc abuts against the bottom of the connecting plate.

[0013] This utility model provides a self-adjusting explosion-proof crane wheel set, which has the following beneficial effects:

[0014] 1. This self-adjusting explosion-proof crane wheel assembly, through the arrangement of a cavity seat, damper, shock-absorbing spring, guide block, bearing seat, bearing, round rod, wheel, oil reservoir, U-shaped plate, return spring, sealing baffle, positioning slider, and push block, enables convenient addition of lubricating oil to the bearings of the wheel assembly, improving the smoothness of wheel rotation. Lubricating oil is added to the bearings through the oil reservoir, and the sealing baffle allows for easy exposure or closure of the oil reservoir, facilitating lubrication and wheel movement. The cooperation of the damper and shock-absorbing spring provides buffering and shock absorption, achieving an explosion-proof effect and improving practicality.

[0015] 2. This self-adjusting explosion-proof crane wheel set, through the setting of limit springs, guide rods, limit baffles, bolts, and positioning blocks, has the effect of improving the stability of the wheel set installation. The positioning blocks play a role in positioning the installation, and the bolts securely connect the disc and the connecting plate. The cooperation of the limit springs and limit baffles facilitates the restriction of the bolt position, prevents the bolts from loosening and falling off, improves the stability of the installation, and achieves the purpose of improving practicality. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a structural schematic diagram of the present invention in frontal cross-section;

[0018] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0019] Figure 4 This is a side view sectional diagram of the present invention.

[0020] Figure 5 This utility model Figure 4 Enlarged structural diagram at point B;

[0021] Figure 6 This is a structural schematic diagram of the present invention viewed from below in cross-section;

[0022] Figure 7 This utility model Figure 6 Enlarged structural diagram at point C.

[0023] In the diagram: 1. Connecting plate; 2. Disc; 3. Cavity seat; 4. Damper; 5. Shock absorber spring; 6. Guide block; 7. Bearing seat; 8. Bearing; 9. Round rod; 10. Wheel; 11. Oil reservoir; 12. U-shaped plate; 13. Return spring; 14. Sealing baffle; 15. Positioning slider; 16. Push block; 17. Limiting spring; 18. Guide rod; 19. Limiting baffle; 20. Bolt; 21. Positioning block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Please see Figures 1 to 7 This utility model provides a technical solution: a self-adjusting explosion-proof crane wheel set, including a connecting plate 1 and a disc 2. A cavity seat 3 is installed at the bottom of the disc 2. A damper 4 and a shock-absorbing spring 5 are respectively installed on the inner top wall of the cavity seat 3. A guide block 6 is installed at one end of the shock-absorbing spring 5. A bearing seat 7 is installed at the bottom of the guide block 6. A round rod 9 is rotatably connected inside the bearing seat 7 through a bearing 8. Wheels 10 are installed at both ends of the round rod 9. An oil storage cavity 11 is opened inside the bearing seat 7. A U-shaped plate 12 is installed at the front of the bearing seat 7. A return spring 13 is installed inside the cavity seat 2. A sealing baffle 14 is installed at one end of the return spring 13. Positioning sliders 15 are installed on both sides of the sealing baffle 14. A push block 16 is installed in front of the sealing baffle 14. A limit spring 17 and a guide rod 18 are installed on the inner wall of the cavity seat 3. A limit baffle 19 is installed at one end of the limit spring 17. A guide hole is opened inside the limit baffle 19. Threaded holes are opened inside the connecting plate 1 and the disc 2. Bolts 20 are installed inside the threaded holes. A positioning block 21 is installed on the top of the disc 2.

[0027] Specifically, the sealing baffle 14 serves to shield the oil storage cavity 11, preventing dust from entering. The opening and closing of the sealing baffle 14 facilitates the addition of lubricating oil into the oil storage cavity 11.

[0028] Please see Figures 1 to 5 The side of the sealing baffle 14 away from the push block 16 abuts against the bearing seat 7, and the position of the oil reservoir 11 corresponds to the position of the sealing baffle 14 and the bearing 8 respectively.

[0029] Specifically, the positioning slider 15 serves as a guide, improving the stability of the movement of the sealing baffle 14 and facilitating the sealing baffle 14 to cover the oil storage cavity 11.

[0030] Please see Figures 2 to 3 The inner wall of the U-shaped plate 12 is provided with a positioning groove with the left and right direction as the depth direction and the up and down direction as the length direction. The end of the positioning slider 15 is located inside the positioning groove, and the positioning slider 15 can slide along the length direction of the positioning groove.

[0031] Specifically, the combination of damper 4 and shock absorber spring 5 facilitates good shock absorption and improves the protection of wheel 10.

[0032] Please see Figures 1 to 2 The end of the guide block 6 away from the bearing seat 7 is located inside the cavity seat 3, and the damper 4 is fixedly connected to the guide block 6.

[0033] Specifically, the limit baffle 19 is designed to block the position of the bolt 20, prevent the bolt 20 from loosening and falling off, and improve the stability of the bolt 20 installation.

[0034] Please see Figures 6 to 7 The guide rod 18 passes through the guide hole, the top of the limiting baffle 19 abuts against the end of the bolt 20, and the end of the limiting baffle 19 is located inside the cavity seat 3.

[0035] Specifically, the positioning block 21 serves to position the wheel assembly and improve its stability during installation.

[0036] Please see Figures 2 to 6 The bottom of the connecting plate 1 is provided with a positioning groove with the vertical direction as the depth direction. The end of the positioning block 21 is inserted into the inside of the positioning groove, and the top of the disc 2 abuts against the bottom of the connecting plate 1.

[0037] In use, the connecting plate 1 is welded to the bottom of the external crane. With the cooperation of multiple wheels 10, the crane moves easily. The damper 4 and shock-absorbing spring 5 work together to provide good shock absorption and explosion-proof protection, enhancing the protection of the wheels 10. When lubricating oil is added to the oil reservoir 11 to lubricate the bearing 8, the push block 16 is pushed, causing it to move the sealing baffle 14 and the positioning slider 15. This causes the return spring 13 to contract under force, and the positioning slider 15 to slide along the length of the positioning groove. The sealing baffle 14 moves upward, exposing the oil reservoir 11. Lubricating oil is then added to the oil reservoir 11, flowing to the bearing 8 to lubricate it, improving the smoothness of the rotation of the round rod 9 and facilitating the rotation of the wheels 10. After releasing the push block 16, the elastic tension of the return spring 13 causes the sealing baffle 14 to return to its original position, thus blocking the oil reservoir 11 and preventing dust from entering. When installing the wheel assembly, push the limiting baffle 19. The guide rod 18 passes through the guide hole, acting as a guide. This causes the limiting spring 17 to contract, moving the limiting baffle 19 away from the threaded hole. Move the disc 2 so that the end of the positioning block 21 inserts into the positioning groove. When the disc 2 abuts against the connecting plate 1, the threaded hole on the disc 2 aligns with the threaded hole on the connecting plate 1. Tighten the bolt 20 inside the threaded hole to secure the disc 2 to the connecting plate 1. After tightening the bolt 20, release the limiting baffle 19. The elastic tension of the limiting spring 17 causes the top of the limiting baffle 19 to abut against the bottom of the bolt 20, facilitating the restriction of the bolt 20's position, improving the stability of the wheel assembly installation, and enhancing practicality.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A self-adjusting explosion-proof crane wheel assembly, comprising a connecting plate and a disc, characterized in that: A cavity seat is installed at the bottom of the disc. A damper and a shock-absorbing spring are installed on the inner top wall of the cavity seat. A guide block is installed at one end of the shock-absorbing spring. A bearing seat is installed at the bottom of the guide block. A round rod is rotatably connected to the bearing seat through a bearing. Wheels are installed at both ends of the round rod. An oil reservoir is opened inside the bearing seat. A U-shaped plate is installed at the front of the bearing seat. A return spring is installed inside the U-shaped plate. A sealing baffle is installed at one end of the return spring. Positioning sliders are installed on both sides of the sealing baffle. A push block is installed in front of the sealing baffle. A limit spring and a guide rod are installed on the inner wall of the cavity seat. A limit baffle is installed at one end of the limit spring. A guide hole is opened inside the limit baffle. Threaded holes are opened inside the connecting plate and the disc. Bolts are installed inside the threaded holes. A positioning block is installed on the top of the disc.

2. The self-adjusting explosion-proof crane wheel set according to claim 1, characterized in that: The side of the sealing baffle away from the push block abuts against the bearing housing, and the position of the oil reservoir corresponds to the position of the sealing baffle and the bearing, respectively.

3. The self-adjusting explosion-proof crane wheel set according to claim 1, characterized in that: The inner wall of the U-shaped plate is provided with positioning grooves with the left and right directions as the depth direction and the up and down directions as the length direction. The end of the positioning slider is located inside the positioning groove, and the positioning slider can slide along the length direction of the positioning groove.

4. The self-adjusting explosion-proof crane wheel set according to claim 1, characterized in that: The end of the guide block away from the bearing housing is located inside the cavity housing, and the damper is fixedly connected to the guide block.

5. The self-adjusting explosion-proof crane wheel set according to claim 1, characterized in that: The guide rod passes through the guide hole, the top of the limiting baffle abuts against the end of the bolt, and the end of the limiting baffle is located inside the cavity seat.

6. The self-adjusting explosion-proof crane wheel set according to claim 1, characterized in that: The bottom of the connecting plate has a positioning groove with the vertical direction as the depth direction. The end of the positioning block is inserted into the positioning groove, and the top of the disc abuts against the bottom of the connecting plate.