Thrust wheel anti-falling structure

Abstract

The utility model relates to the technical field of excavator thrust wheels, and discloses a thrust wheel anti-falling structure which comprises a track shoe, a caterpillar track is fixedly connected to the front end of the track shoe, a thrust wheel body is movably installed at the front end of the caterpillar track, constraint frames are arranged on the two sides of the thrust wheel body, and constraint shells are welded to the upper ends and the lower ends of the constraint frames. According to the technical scheme, the caterpillar track can be limited through the cooperation of the steel balls and the binding shell, so that the caterpillar track is effectively prevented from falling off from the thrust wheel, the contact smoothness of the caterpillar track and the binding shell can be guaranteed, the friction force of contact between every two caterpillar tracks is reduced, the abrasion condition of all parts is reduced, and the service life of the caterpillar track is prolonged. And the steel balls can rotate in the binding shells, so that lubricating oil in the oil-immersed sponge blocks can be attached to the surfaces of the steel balls, the lubricating effect on the contact between the steel balls and the caterpillar track is achieved, the friction force of the contact between the steel balls and the caterpillar track is further reduced, and the driving energy consumption of the excavator can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of excavator track wheels, in particular to a track wheel anti-falling structure. Background Art

[0002] The track roller is an important component of the crawler excavator's walking and support system, and is also one of the four wheels in the crawler engineering machinery chassis. Its main function is to support the weight of the excavator and bulldozer, allowing the crawler track to move forward along the wheel. However, the existing track roller cannot prevent the chain track from falling off the track roller.

[0003] After searching, the publication number is (CN219857412U), which discloses an anti-falling structure for the supporting wheels of an excavator, including supporting wheels, fixing holes on both sides of the supporting wheels, anti-falling plates on both sides of the supporting wheels, connecting holes on the anti-falling plates, connecting rods between the connecting holes and the fixing holes, restraint blocks fixedly connected at both ends of the anti-falling plates, a spring fixedly connected inside the restraint blocks, a large ring fixedly connected to the restraint blocks, a small ring fixedly connected to the restraint blocks, a circular groove between the large ring and the small ring, a connecting ring movably connected inside the circular groove, an anti-pressure block fixedly connected to the spring, and a protective cover provided on the anti-pressure block.

[0004] When implementing this technical solution, at least the following drawbacks remain: Although this utility model can prevent the track from falling off the supporting rollers by cooperating with structures such as the anti-compression block, the contact between the anti-compression block and the track is not smooth, which increases the friction between the track and the anti-compression block, easily causing wear of various components and increasing the excavator's driving energy consumption. Therefore, improvement is urgently needed. Therefore, we propose a supporting roller anti-falling structure. Utility Model Content

[0005] The purpose of the utility model is to provide a supporting wheel anti-falling structure, which solves the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a supporting wheel anti-falling structure, comprising a track shoe, the front end of the track shoe is fixedly connected to a chain rail, the front end of the chain rail is movably mounted with a supporting wheel body, both sides of the supporting wheel body are provided with a restraining frame, the upper and lower ends of the restraining frame are welded with a restraining shell, and the restraining shell is arranged on the side close to the chain rail, a sealing plate is provided on one side of the restraining shell, a sealing ring is provided in the middle of the sealing plate, an oil supply hole is opened on one side of the restraining shell, the inner cavity of the oil supply hole is provided with a sealing plug, and the inner cavity of the restraining shell is provided with a steel ball.

[0007] By adopting the above technical solutions, the steel balls and the restraint shell can cooperate to limit the track, thus effectively preventing the track from falling off the idler wheel. Moreover, the arrangement of the steel balls can ensure the smoothness of the contact between the track and the restraint shell, reduce the friction between the two contacts, and thus reduce the wear of each component. Also, since the steel balls can rotate in the restraint shell, the lubricating oil in the oil-soaked sponge block can be adhered to the surface of the steel balls, thereby achieving the lubricating effect on the contact between the steel balls and the track, further reducing the friction between the steel balls and the track, ensuring the limiting effect on the track, and reducing the driving energy consumption of the excavator.

[0008] Optionally, the size of the sealing plug is adapted to the size of the oil replenishing hole, and the sealing plug is sealingly connected to the oil replenishing hole.

[0009] By adopting the above technical solutions, it is convenient to cooperate the sealing plug with the oil replenishing hole, facilitating the staff to add lubricating oil to the oil-soaked sponge block regularly through the oil replenishing hole.

[0010] Optionally, an oil-soaked sponge block is placed in the inner cavity of the restraint shell, and the size of the oil-soaked sponge block is adapted to the size of the inner cavity of the restraint shell.

[0011] By adopting the above technical solutions, it is convenient to cooperate with the oil-soaked sponge block in the restraint shell, thereby achieving the lubricating effect on the steel balls.

[0012] Optionally, the size of the sealing plate is larger than the opening size of the restraint shell, and the sealing plate is detachably connected to the restraint shell by bolts.

[0013] By adopting the above technical solutions, it is convenient to seal and limit the lubricating oil and the steel balls through the sealing plate.

[0014] Optionally, the inner diameter of the sealing ring is smaller than the diameter of the steel balls, and the oil-soaked sponge block is wrapped outside the steel balls.

[0015] By adopting the above technical solutions, it is convenient to limit the position of the steel balls through the sealing ring, and it can also reduce the entry of external impurities into the restraint shell.

[0016] Optionally, the two restraint frames are symmetrically arranged, and the restraint frames are detachably connected to the idler wheel main body by fixing bolts.

[0017] By adopting the above technical solutions, it is convenient to limit the track through the arrangement of the restraint frames, thus avoiding the situation of the idler wheel main body falling off.

[0018] Compared with the prior art, the beneficial effects of the technical solutions of the present application are as follows:

[0019] The technical solution of this application, through the arrangement of track shoes, track chains, main body of idler wheel, restraint housing, sealing ring, oil-soaked sponge block and steel balls, can not only use the steel balls in cooperation with the restraint housing to limit the track chain, thus effectively preventing the track chain from falling off the idler wheel, but also, due to the arrangement of the steel balls, ensure the smoothness of the contact between the track chain and the restraint housing, reduce the friction force of pairwise contact, thereby reducing the wear of each component. Moreover, since the steel balls can rotate in the restraint housing, the lubricating oil in the oil-soaked sponge block can be adhered to the surface of the steel balls, thus achieving the lubricating effect on the contact between the steel balls and the track chain, further reducing the friction force of the contact between the steel balls and the track chain, ensuring the limiting effect on the track chain, and reducing the driving energy consumption of the excavator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present utility model will become more apparent from the following detailed description of non-limiting embodiments read in conjunction with the accompanying drawings:

[0021] Figure 1 It is a schematic diagram of the overall structure of an idler wheel anti-drop structure of the present utility model;

[0022] Figure 2 It is a partial enlarged structural schematic diagram at A of an idler wheel anti-drop structure of the present utility model;

[0023] Figure 3 It is a side view structural schematic diagram of the sealing plate of an idler wheel anti-drop structure of the present utility model.

[0024] In the figure: 1, track shoe; 11, track chain; 12, main body of idler wheel; 2, restraint frame; 21, restraint housing; 22, sealing plate; 23, sealing ring; 24, oil-soaked sponge block; 25, oil replenishing hole; 26, sealing plug; 3, steel ball. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Please refer to Figures 1-3, the present utility model provides a technical solution: a structure for preventing the idler wheel from falling off, including a crawler plate 1. A track link 11 is fixedly connected to the front end of the crawler plate 1. An idler wheel body 12 is movably installed at the front end of the track link 11. Binding frames 2 are arranged on both sides of the idler wheel body 12. Binding shells 21 are welded to both the upper and lower ends of the binding frames 2, and the binding shells 21 are arranged on the side close to the track link 11. A sealing plate 22 is arranged on one side of the binding shell 21. A sealing ring 23 is arranged in the middle of the sealing plate 22. An oil replenishing hole 25 is opened on one side of the binding shell 21. A sealing plug 26 is arranged in the inner cavity of the oil replenishing hole 25. A steel ball 3 is arranged in the inner cavity of the binding shell 21. The size of the sealing plate 22 is larger than the opening size of the binding shell 21, and the sealing plate 22 is detachably connected to the binding shell 21 by bolts, which is convenient for sealing and limiting the lubricating oil and the steel ball 3 through the sealing plate 22. The inner diameter of the sealing ring 23 is smaller than the diameter of the steel ball 3, and the oil-soaked sponge block 24 is wrapped outside the steel ball 3, which is convenient for limiting the position of the steel ball 3 through the sealing ring 23, and can reduce the entry of external impurities into the binding shell 21. The two binding frames 2 are symmetrically arranged, and the binding frames 2 are detachably connected to the idler wheel body 12 by fixing bolts, which is convenient for limiting the track link 11 through the arrangement of the binding frames 2, thereby avoiding the situation of the idler wheel body 12 falling off.

[0026] The size of the sealing plug 26 is adapted to the size of the oil replenishing hole 25, and the sealing plug 26 is hermetically connected to the oil replenishing hole 25, which is convenient for the staff to add lubricating oil to the oil-soaked sponge block 24 regularly through the oil replenishing hole 25 by the cooperation of the sealing plug 26 and the oil replenishing hole 25.

[0027] An oil-soaked sponge block 24 is placed in the inner cavity of the binding shell 21. The size of the oil-soaked sponge block 24 is adapted to the inner cavity size of the binding shell 21, which is convenient for the oil-soaked sponge block 24 in the binding shell 21 to cooperate, so as to lubricate the steel ball 3.

[0028] When the excavator turns, the steel ball 3 on the corresponding side will roll and contact with the track link 11. The steel ball 3 cooperates with the binding shell 21 to limit the track link 11, thereby effectively preventing the track link 11 from falling off the idler wheel. At the same time, due to the setting of the steel ball 3, the smoothness of the contact between the track link 11 and the binding shell 21 can be ensured, the friction force of the pairwise contact is reduced, thereby reducing the wear of each component. At the same time, since the steel ball 3 can rotate in the binding shell 21, the lubricating oil in the oil-soaked sponge block 24 can be adhered to the surface of the steel ball 3, thereby lubricating the contact between the steel ball 3 and the track link 11, further reducing the friction force of the contact between the steel ball 3 and the track link 11, ensuring the limiting effect on the track link 11, and reducing the driving energy consumption of the excavator.

Claims

1. A structure for preventing the idler wheel from falling off, including a crawler track plate (1), characterized in that: A track shoe (1) has a track chain (11) fixedly connected to its front end. A road wheel body (12) is movably installed at the front end of the track chain (11). Binding frames (2) are provided on both sides of the road wheel body (12). Binding shells (21) are welded to both the upper and lower ends of the binding frames (2), and the binding shells (21) are arranged on the side close to the track chain (11). A sealing plate (22) is provided on one side of the binding shell (21). A sealing ring (23) is provided in the middle of the sealing plate (22). An oil replenishing hole (25) is formed on one side of the binding shell (21). A sealing plug (26) is arranged in the inner cavity of the oil replenishing hole (25). Steel balls (3) are arranged in the inner cavity of the binding shell (21).

2. The anti-drop structure of a track roller according to claim 1, wherein: The size of the sealing plug (26) is adapted to the size of the oil replenishing hole (25), and the sealing plug (26) is sealingly connected to the oil replenishing hole (25).

3. The anti - shedding structure of a track roller according to claim 1, characterized in that: An oil-soaked sponge block (24) is placed in the inner cavity of the binding shell (21), and the size of the oil-soaked sponge block (24) is adapted to the size of the inner cavity of the binding shell (21).

4. A structure for preventing the carrier roller from falling off according to claim 1, characterized in that: The size of the sealing plate (22) is larger than the opening size of the binding shell (21), and the sealing plate (22) is detachably connected to the binding shell (21) by bolts.

5. The anti-drop-off structure of a track roller according to claim 3, characterized in that: The inner diameter of the sealing ring (23) is smaller than the diameter of the steel ball (3), and the oil-soaked sponge block (24) wraps around the outside of the steel ball (3).

6. The anti - shedding structure of a track roller according to claim 1, wherein: The two binding frames (2) are symmetrically arranged, and the binding frames (2) are detachably connected to the road wheel body (12) by fixing bolts.

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