Spoke rim structure and thrust wheel applying same

Abstract

The utility model belongs to the technical field of walking mechanisms, and particularly relates to a spoke rim structure and a thrust wheel applying the same. The spoke rim structure comprises a rim which is integrally in a circular tube shape, a circular tube-shaped spoke ring is arranged in the rim, the interior of the spoke ring is connected with an annular plate-shaped spoke plate, and the spoke plate is arranged close to the axial center of the rim. The spoke rings are lined in the rim, so that the bearing capacity of the rim can be obviously enhanced, and the deformation resistance of the rim sections lined with the spoke rings can also be greatly improved. When the spoke rim structure is applied to the thrust wheel, the strength and the reliability of a thrust wheel body are improved, besides, as the annular plate-shaped spoke plate is arranged in the middle section of the rim and the center of the spoke plate is sleeved on the wheel shaft sleeve, when the wheel shaft sleeve drives the wheel body to rotate, the shear stress and the torque borne by the spoke plate are obviously reduced, and the service life of the thrust wheel body can be effectively prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of traveling mechanisms, and particularly relates to a spoke and rim structure and a track roller applying this structure. Background Art

[0002] In a crawler traveling mechanism, the track rollers support the load of the whole machine, and also cooperate with the limiting components of the crawler to limit the displacement of the crawler in the wheel axle direction, providing guidance for the crawler while preventing the crawler from slipping. The working environment of engineering or agricultural machinery is harsh. The track rollers often travel on muddy and sandy roads, and their rims are extremely prone to damage.

[0003] The applicant's prior application CN219947763U discloses a spoke and rim structure and a track roller with this structure. The outer edge of its spoke is a round tube-shaped spoke ring. The inside of the spoke ring is connected with a flat and shallow annular plate-shaped spoke plate, and the outside is connected with the rim. The junction of the spoke ring and the spoke plate is located in the middle of the rim in the axial direction. The spoke ring body is located within a semi-circle on one side of the rim, and the spoke plate is located within a semi-circle on the other side of the rim, and the socket hole at the center of the spoke plate is adjacent to the rim edge. This spoke and rim structure can effectively improve the anti-deformation ability of the outer rim body of the rim, but it is only applicable to wheels with a relatively narrow rim surface. When applied to track rollers, its load-bearing capacity is also low. The track rollers for heavy machinery need to bear a large load. To ensure the support effect, a larger rim surface is required. When the prior application's spoke and rim structure is applied to a track roller with a large rim surface, when the tubular hub connected by the socket hole at the center of the spoke plate rotates, the spoke plate will bear a large torque. The flat and shallow annular spoke plate repeatedly bears a large torque, which easily causes damage to the spoke plate. That is, the existing spoke and rim structure cannot maintain the roundness of the rim while ensuring the reliability of the spoke plate structure, and cannot meet the requirements of track rollers for heavy machinery. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a spoke and rim structure with high load-bearing capacity and strong anti-deformation ability and a track roller applying this structure.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A spoke and rim structure includes a rim that is integrally round tube-shaped. Inside the rim, there is a round tube-shaped spoke ring. Inside the spoke ring, there is an annular plate-shaped spoke plate connected, and the arrangement position of the spoke plate is adjacent to the center of the rim in the axial direction.

[0007] A track roller applying the aforementioned spoke and rim structure, the socket hole at the center of the spoke plate is socketed on the middle section of the wheel axle sleeve, and the wheel axle sleeve is concentrically arranged with the rim and the spoke ring.

[0008] Compared with the prior art, the utility model has the following technical effects: By lining a spoke ring inside the rim, the load-bearing capacity of the rim can be significantly enhanced, and the anti-deformation ability of the rim segment lined with the spoke ring can also be greatly improved. When this spoke and rim structure is applied to a idler wheel, in addition to improving the strength and reliability of the idler wheel body, since the annular plate-shaped spoke plate is arranged in the middle section of the rim and the center of the spoke plate is sleeved on the wheel shaft sleeve, when the wheel shaft sleeve drives the wheel body to rotate, the shear stress and torque borne by the spoke plate are significantly reduced, thereby effectively extending the service life of the idler wheel body. Brief Description of the Drawings

[0009] The following briefly describes the content expressed in each drawing of this specification and the marks in the drawings:

[0010] Figure 1 、 2 is a perspective view of Embodiment 5;

[0011] Figure 3 is the front view of Embodiment 5;

[0012] Figure 4 is a cross-sectional view through the wheel core of Embodiment 1;

[0013] Figure 5 is a cross-sectional view through the wheel core of Embodiment 2;

[0014] Figure 6 is a cross-sectional view through the wheel core of Embodiment 3;

[0015] Figure 7 is a cross-sectional view through the wheel core of Embodiment 4;

[0016] Figure 8 is Figure 3 the A-A cross-sectional view of;

[0017] Figure 9 is a cross-sectional view through the wheel core of Embodiment 6. Detailed Description of the Invention

[0018] A spoke and rim structure, as shown in Figs. Figure 1-3 8, includes a rim 10 which is integrally tubular. Inside the rim 10, there is a tubular spoke ring 21. Inside the spoke ring 21, an annular plate-shaped spoke plate 22 is connected. The spoke plate 22 is arranged adjacent to the center of the rim 10 in the axial direction. The spoke ring 21 lined inside the rim 10 can significantly enhance the load-bearing capacity of the rim 10 and effectively maintain the roundness of the rim 10 segment lined with the spoke ring 21.

[0019] When the above-mentioned spoke and rim structure is applied to a track roller, the socket hole 222 at the center of the spoke plate 22 is socketed on the middle section of the wheel axle sleeve 30, and the wheel axle sleeve 30, the rim 10, and the spoke ring 21 are concentrically arranged. In this way, the shear stress and torque borne by the annular spoke plate 22 during operation are significantly reduced, which can effectively improve the service life of the track roller body while enhancing the load-bearing capacity of the track roller.

[0020] In addition, as shown in the appendix Figures 4-9 The inside of the wheel axle sleeve 30 is a stepped hole, and the inner diameter of the wheel axle sleeve 30 at the connection position between the spoke plate 22 and the wheel axle sleeve 30 is the smallest. In this way, after the load of the heavy machinery is transmitted to the spoke plate through the rim, it can be reliably supported at the wheel axle sleeve 30. During specific implementation, two bearings are symmetrically installed on both sides of the smallest inner diameter ring platform in the middle of the wheel axle sleeve 30, which can realize the stable installation of the track roller and the wheel axle, and further ensure the reliability of the track roller during operation.

[0021] To prevent excessive stress from being applied to the spoke plate 22 along the axial direction of the roller body due to sediment accumulation, which may cause the track roller body to deflect and jam and unable to rotate smoothly, through holes 221 are provided at equal angular intervals along the circumferential direction of the plate body of the spoke plate 22. Road obstacles such as sediment can pass through the through holes 221 to balance the forces on both sides of the spoke plate 22.

[0022] Appendix Figures 4-9 The cross-sectional view of the track roller passing through the wheel core in the embodiment of the track roller applying the aforementioned spoke and rim structure is shown below. With reference to the accompanying drawings, the specific implementation manners of each embodiment will be further described in detail. For the convenience of description, it is defined that the left end of the rim 10 in the appendix Figures 4-9 is the inner end and the right end is the outer end. During specific implementation, the right end of the rim 10 is in the exposed position, facing the side of the traveling mechanism, and the left end is adjacent to the center of the traveling mechanism and is in the blocked position. Embodiment

[0023] As shown in the appendix Figure 4 In this embodiment, the spoke ring 21 is arranged in the middle. In this way, the overall strength of the rim 10 on both sides of the spoke plate 22 is the same. The axial dimension of the spoke ring 21 is smaller than that of the rim 10, and the outer end and the inner end of the spoke ring 21 are respectively welded to the rim 10, and the weld connecting the two is blocked by the rim 10 body, which can ensure the reliability of their connection. In order to fully improve the load-bearing capacity of the track roller body while saving materials, the axial dimension of the spoke ring 21 is preferably 1 / 3 to 2 / 3 of the axial dimension of the rim 10. Embodiment

[0024] As shown in the appendix Figure 5 The difference between this embodiment and Embodiment 1 is that the body of the spoke ring 21 is offset and arranged adjacent to the outer section of the rim 10 body, which can effectively ensure the roundness of the outer section of the rim 10. On this basis, in order to maintain the roundness of the inner section of the rim 10, the inner end of the rim 10 is radially folded inward to form a flanging 11.

[0025] In this embodiment, the angle α between the flange 11 and the generatrix of the wheel rim 10 is an acute angle, that is, the angle α that the generatrix of the outer cylindrical surface of the wheel rim 10 rotates to the conical surface where the flange 11 is located for the first time coincides with the flange 11. In the preferred embodiment, the outer surface of the flange 11 coincides with the adjacent surface of the stopper component arranged in the middle of the track. Example

[0026] As attached Figure 6 As shown, the difference between this embodiment and embodiment 2 is that the ring body of the spoke 21 is arranged on the outer section of the rim 10, the outer end of the spoke 21 is welded to the outer end of the rim 10, the inner end of the spoke 21 is connected to the outer plate edge of the spoke plate 22, the spoke 21 and the spoke plate 22 are in annular groove shape, and the spoke 21 and the spoke plate 22 are made of homogeneous plates by spinning and bending to form an integrated structure. In this way, the spoke rim of the supporting wheel is composed of two components connected together, and the wheel body structure is more reliable.

[0027] Since the outer end of the supporting wheel directly contacts the road obstacles, the outer section of the rim 10 is easy to interfere with hard objects such as stones and is more likely to deform during operation. Therefore, a spoke 21 is lined inside the outer section of the rim 10 and a flange 11 is provided at the inner end of the rim 10. Although this makes the load-bearing capacity and anti-deformation ability of the inner and outer sections of the rim 10 different, it can save materials and simplify the production and processing steps to reduce production costs, while making the wheel body of the supporting wheel meet the use requirements and have a long service life.

[0028] In this embodiment, since the spoke 21 and the spoke plate 22 are an integrally connected component, and the spoke 21 is closely matched with the rim 10, the inner end of the spoke 21 and the rim 10 can meet the use requirements without further connection. In other embodiments, the inner end of the spoke 21 and the rim 10 can be welded to enhance the reliability of the connection between the spoke and the rim. Example

[0029] As attached Figure 7 As shown, the difference between this embodiment and the third embodiment is that the spoke 21 and the rim 10 are in a folded and overlapped shape, and the rim 10 and the spoke 21 are made of the same material plate and are formed into an integrated structure by spinning and bending. That is, the connection method between the outer end of the spoke 21 and the outer end of the rim 10 in this embodiment is different from that in the third embodiment. The spoke rim 10 in this embodiment is an integrated structure, with better overall performance and a more stable and reliable structure.

[0030] In this embodiment, the median ring 21 is arranged close to the inside of the wheel rim 10 , so that the ring body thickness at this location is doubled, which greatly improves the ring body strength at the outer end of the wheel rim 10 . Example

[0031] As attached Figure 8As shown, to obtain a larger load-bearing capacity, the one-piece spoke-rim structural member needs to be made of a blank with a larger plate thickness. However, the process control of making the adjacent ring surfaces of the spoke ring 21 and the rim 10 fit together by spinning is difficult. After experimental verification, in the one-piece spoke-rim structural member, the adjacent ring surfaces of the spoke ring 21 and the rim 10 are arranged at intervals and still have strong anti-deformation ability and load-bearing capacity. Therefore, the difference between this embodiment and Embodiment 4 lies in that the adjacent ring surfaces of the spoke ring 21 and the rim 10 are arranged at intervals. Embodiment

[0032] As shown in the appendix Figure 9 As shown, in order to further improve the structural performance of the one-piece spoke-rim structural member in this embodiment, the inner end of the spoke ring 21 is welded to the rim 10. In a preferred solution, the inner end of the spoke ring 21 and the rim 10 do not need to be fully welded. As shown in the appendix Figure 9 In the embodiment shown, the connection welds 12 at the inner end of the spoke ring 21 and the rim 10 are arranged at equal angular intervals around the circumference of the spoke ring 21. The arrangement of the connection welds 12 can be arranged in the same position as the through holes 221.

Claims

1. A spoke rim structure, characterized in that: The wheel rim (10) comprises a rim (10) which is in the shape of a circular tube as a whole. A rim (21) in the shape of a circular tube is arranged inside the wheel rim (10). An annular plate-shaped spoke plate (22) is connected inside the spoke ring (21). The spoke plate (22) is arranged near the axial center of the wheel rim (10).

2. The spoke rim structure according to claim 1, characterized in that: The axial dimension of the spoke ring (21) is 1 / 3 to 2 / 3 of the axial dimension of the wheel rim (10).

3. The spoke rim structure according to claim 1, characterized in that: The ring body of the spoke ring (21) is arranged on the outer section of the wheel rim (10), and the inner end of the wheel rim (10) is radially folded inward to form a flange (11), and the included angle α between the flange (11) and the generatrix of the wheel rim (10) is an acute angle.

4. The spoke rim structure according to claim 1, characterized in that: The outer end and the inner end of the spoke (21) are respectively welded to the wheel rim (10).

5. The spoke rim structure according to claim 3, characterized in that: The outer end of the spoke (21) is connected to the outer end of the rim (10).

6. The spoke rim structure according to claim 5, characterized in that: The spoke ring (21) and the wheel rim (10) are in a folded and overlapped shape, and the wheel rim (10) and the spoke ring (21) are made of a homogeneous plate material and are formed into an integrated connected structural component by spin-bending.

7. The spoke rim structure according to claim 6, characterized in that: The spoke ring (21) is arranged at intervals from the adjacent ring surface of the wheel rim (10).

8. The spoke rim structure according to claim 7, characterized in that: The inner end of the spoke (21) is welded to the wheel rim (10), and the connecting welds (12) of the two are arranged at equal intervals in the circumferential direction thereof.

9. The spoke rim structure according to claim 3, characterized in that: The inner end of the web (21) is connected to the outer plate edge of the spoke (22); the web (21) and the spoke (22) are in the shape of a circular groove; the web (21) and the spoke (22) are made of the same sheet material and are formed by spinning and bending to form an integrated structure.

10. The spoke rim structure according to claim 1, characterized in that: The upper ring of the plate body of the spoke plate (22) is provided with through holes (221) at equal angular intervals in the circumferential direction.

11. A track wheel using the spoke rim structure according to any one of claims 1 to 10, characterized in that: The sleeve hole (222) at the center of the spoke plate (22) is sleeved on the middle section of the axle sleeve (30), and the axle sleeve (30) is coaxially arranged with the wheel rim (10) and the spoke ring (21).

12. The track roller according to claim 11, characterized in that: The inside of the axle sleeve (30) is a stepped hole, and the hole diameter inside the axle sleeve (30) at the connection position between the spoke plate (22) and the axle sleeve (30) is the smallest.

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