Three-section shaft type thrust wheel

Abstract

The utility model relates to the technical field of thrust wheels, in particular to a three-section shaft type thrust wheel. An annular outer groove is formed in each of the two ends of the idler wheel, two sets of limiting grooves are symmetrically formed in the outer side of the idler wheel, a middle shaft is rotationally installed in the idler wheel through a bearing, sealing covers are arranged on the portions, located on the two sides of the idler wheel, of the middle shaft respectively, and oil seals are arranged in the sealing covers. Rubber rings made of high-performance rubber are embedded in the side walls of the two ends of the roller; mounting plates are clamped to the two sides of the wheel carrier respectively, the two ends of the middle shaft are connected with lengthened shafts respectively, and the outer side ends of the lengthened shafts are clamped to the mounting plates respectively. The limiting grooves of the thrust wheel are matched with the outer grooves, so that an outwards-protruding ring is formed at the edge of the rolling wheel, the annular part can generate certain deformation when being vibrated in the working process of the thrust wheel so as to absorb vibration, and meanwhile, the rubber ring is embedded, so that noise is further reduced; the thrust wheel can be quickly mounted.

Description

Technical Field

[0001] This utility model relates to the field of support roller technology, specifically to a three-section axle support roller. Background Technology

[0002] Track rollers are one of the key components of tracked vehicles, typically used to support and guide the tracks, ensuring smooth operation when in contact with the ground. Track rollers play a crucial role in track systems of construction machinery, military equipment, and agricultural machinery, bearing not only the vehicle's weight but also the impacts and friction from complex terrain.

[0003] Existing track rollers, due to their large weight and high rigidity, generate significant noise during use and require a complex installation process. Utility Model Content

[0004] The purpose of this utility model is to provide a reasonably designed three-section axle support roller that addresses the defects and shortcomings of the existing technology, thereby solving the aforementioned deficiencies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: It includes a wheel frame, a roller is provided inside the wheel frame, annular outer grooves are opened at both ends of the roller, two sets of limiting grooves are symmetrically opened on the outer side of the roller, a central shaft is rotatably mounted in the roller through a bearing, a cover is provided on both sides of the central shaft, and an oil seal is provided in each cover, and a rubber ring made of high-performance rubber is embedded in the side wall at both ends of the roller; mounting plates are respectively clamped on both sides of the wheel frame, and extension shafts are respectively connected to both ends of the central shaft, and the outer ends of the extension shafts are respectively clamped to the mounting plates.

[0006] Preferably, the top end of the central shaft is provided with an alignment groove, and one end of the extension shaft is provided with a groove that matches the alignment groove, and the extension shaft is engaged with the central shaft through the groove.

[0007] Preferably, one end of the extension shaft has several connecting grooves, and the extension shaft is snapped onto the mounting plate through the connecting grooves.

[0008] Preferably, the mounting plates are all square plates, and the mounting plates and wheel frames have several mounting holes corresponding to each other. The bottom of the mounting holes has internal threads, and a fixing bolt is inserted into the mounting hole. The bottom end of the fixing bolt has a thread, and the bottom end of the fixing bolt is connected to the mounting hole by the thread.

[0009] Preferably, the edges of the limiting groove are chamfered.

[0010] Preferably, the wheel frame has multiple rollers installed.

[0011] The beneficial effects of this utility model after adopting the above structure are:

[0012] This track roller features a chamfered limiting groove, which is larger than traditional designs. This allows for a better fit between the track edge and the limiting groove, resulting in improved stability. The limiting groove, in conjunction with the outer groove, creates an outward-protruding ring at the edge of the roller. This ring deforms under vibration during operation, absorbing vibration and reducing noise. The embedded rubber ring further reduces noise.

[0013] This track roller, with its extended shaft and design including connecting grooves, alignment grooves, mounting plates, and fixing bolts, allows for quick installation and ensures stable connections between the shafts during operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the roller structure in this utility model;

[0016] Figure 3 This is a cross-sectional view of the roller structure in this utility model;

[0017] Figure 4 This is a schematic diagram of the installation of the extended shaft in this utility model;

[0018] Figure 5 This is a schematic diagram of the installation of the fixing bolt in this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Wheel frame; 2. Roller; 3. External groove; 4. Limiting groove; 5. Rubber ring; 6. Central shaft; 7. Bearing; 8. Cover; 9. Oil seal; 10. Alignment groove; 11. Extension shaft; 12. Mounting plate; 13. Connecting groove; 14. Fixing bolt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] See Figures 1-5As shown, it includes a wheel frame 1, which contains several rollers 2. Each roller 2 has an annular outer groove 3 at both ends. Two sets of limiting grooves 4 are symmetrically opened on the outer side of the roller 2. The edges of the limiting grooves 4 are all chamfered. A central shaft 6 is rotatably mounted in the roller 2 through a bearing 7. A cover 8 is provided on both sides of the central shaft 6, and an oil seal 9 is provided in each cover 8. A rubber ring 5 made of high-performance rubber is embedded in the side walls at both ends of the roller 2. Mounting plates 12 are respectively clamped on both sides of the wheel frame 1. An extension shaft 11 is connected to both ends of the central shaft 6. The outer ends of the extension shaft 11 are respectively clamped on the mounting plates 12.

[0023] The top of the central shaft 6 is provided with a matching groove 10, and one end of the extended shaft 11 is provided with a groove that matches the matching groove 10. The extended shaft 11 is engaged with the central shaft 6 through the groove.

[0024] The extended shaft 11 has several connecting slots 13 at one end, and the extended shaft 11 is snapped onto the mounting plate 12 through the connecting slots 13.

[0025] The mounting plates 12 are all square plates. The mounting plates 12 and the wheel frame 1 have several mounting holes corresponding to each other. The bottom of the mounting holes has internal threads. Fixing bolts 14 are inserted into the mounting holes. The bottom of the fixing bolts 14 has threads. The bottom of the fixing bolts 14 is connected to the mounting holes by threads.

[0026] The principle and usage process of this utility model:

[0027] During installation, place the roller 2 into the wheel frame 1, connect the extension shaft 11 to both ends, then install the mounting plate 12 so that the connecting groove 13 is engaged in the extension shaft 11, and insert and tighten the fixing bolt 14 to complete the installation.

[0028] By opening the chamfered limiting groove 4, the limiting groove 4 can be enlarged compared to the traditional design, so that the edge of the track and the contact surface of the limiting groove 4 can maintain a better fit and better stability. At the same time, the limiting groove 4 cooperates with the outer groove 3, so that the edge of the roller 2 forms an outward protruding ring. The ring part can generate a certain deformation when subjected to vibration during the operation of the support roller, thereby absorbing vibration and reducing noise. Meanwhile, the embedded rubber ring 5 further reduces noise.

[0029] By extending the shaft 11 and designing the connecting groove 13, alignment groove 10, mounting plate 12 and fixing bolt 14, the support roller can be installed quickly, and the connection stability between the shafts can be guaranteed during operation.

[0030] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A three-section axle type support roller, comprising a wheel frame (1), characterized in that: The wheel frame (1) is equipped with a roller (2), and the roller (2) has an annular outer groove (3) at both ends. Two sets of limiting grooves (4) are symmetrically opened on the outer side of the roller (2). The roller (2) is equipped with a central shaft (6) through a bearing (7). The central shaft (6) is equipped with a cover (8) on both sides of the roller (2). The cover (8) is equipped with an oil seal (9). The side walls at both ends of the roller (2) are inlaid with rubber rings (5) made of high-performance rubber. The wheel frame (1) is equipped with mounting plates (12) on both sides. The two ends of the central shaft (6) are connected to an extension shaft (11). The outer ends of the extension shaft (11) are respectively attached to the mounting plates (12).

2. The three-section axle type support roller according to claim 1, characterized in that: The top of the central shaft (6) is provided with a matching groove (10), and one end of the extended shaft (11) is provided with a groove that matches the matching groove (10). The extended shaft (11) is engaged with the central shaft (6) through the groove.

3. A three-section axle type support roller according to claim 2, characterized in that: The extended shaft (11) has several connecting grooves (13) at one end, and the extended shaft (11) is snapped onto the mounting plate (12) through the connecting grooves (13).

4. A three-section axle type support roller according to claim 3, characterized in that: The mounting plates (12) are all square plates. The mounting plates (12) and the wheel frame (1) have several mounting holes. The bottom of the mounting holes has internal threads. Fixing bolts (14) are inserted into the mounting holes. The bottom of the fixing bolts (14) has threads. The bottom of the fixing bolts (14) is connected to the mounting holes by threads.

5. A three-section axle type support roller according to claim 4, characterized in that: The edges of the limiting groove (4) are all chamfered.

6. A three-section axle type support roller according to claim 5, characterized in that: The number of rollers (2) installed in the wheel frame (1) is multiple.

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