Thrust wheel device for crawler harvester

Abstract

The utility model relates to the technical field of harvesters, in particular to a track roller device for a crawler harvester, which comprises a track roller shaft, track roller components are mounted at two ends of the track roller shaft, each track roller component comprises a track roller and a bearing cover, the track rollers are sleeved at two ends of the track roller shaft, and the bearing covers are mounted on the track roller shaft. The thrust wheel is simple in structure, the framework oil seal is adopted, the sealing performance is good, water and other impurities are prevented from entering the thrust wheel, cost is low, the size is small, and the thrust wheel is suitable for harvesters in hilly and mountainous areas.

Description

TECHNICAL FIELD

[0001] The utility model relates to a harvester technical field especially is a track harvester supporting wheel device. BACKGROUND

[0002] The track harvester is an agricultural machinery, and is mainly used for harvesting various crops such as wheat, corn, rice and the like. The track harvester can complete harvesting, threshing and grain concentration in a storage bin through integrated design. The harvested crops are conveyed to a transport vehicle through a conveyor belt.

[0003] The supporting wheel is a core component of a track walking system, and its main function is to support the weight of the harvester, so that the track advances along the wheel, thereby reducing the frictional resistance when the equipment walks. The supporting wheel device usually comprises a sealing device to prevent impurities such as mud from entering the inside of the supporting wheel, to protect the internal components such as bearings, shafts and oil seals, and to prolong the service life.

[0004] The existing supporting wheel adopts a combined oil seal, which is not only high in cost but also large in size, and is not suitable for hilly and mountainous area harvesters. SUMMARY

[0005] The utility model solves the technical problems: in order to solve the problems existing in the prior art in the above background art, provide a kind of supporting wheel device for track harvester with good sealing performance, prevent water and other impurities from entering the inside of supporting wheel, and the supporting wheel device for track harvester with low cost.

[0006] The utility model solves the technical problems and adopts the technical scheme: a kind of supporting wheel device for track harvester, including supporting wheel shaft, the both ends of the supporting wheel shaft are equipped with supporting wheel assembly, each supporting wheel assembly includes supporting wheel and bearing cover, the supporting wheel is sleeved at the both ends of supporting wheel shaft, and the shaft body between supporting wheel and supporting wheel shaft is successively sleeved with bearing and skeleton oil seal from outside to inside.

[0007] Further, the number of skeleton oil seals is 2.

[0008] Further, key slots are formed on the shaft body of the supporting wheel shaft, keys are installed in the key slots, screw holes are formed on the both ends of the supporting wheel shaft, bolts are screwed in the screw holes, flat washers and first spring washers are inserted between the end faces of the supporting wheel shaft and the bolts.

[0009] Further, the number of bearings is 2, and a spacer sleeve is sleeved on the shaft body of the supporting wheel shaft between the two bearings.

[0010] Further, the supporting wheel is installed with a bearing cover matched therewith, the supporting wheel and the bearing cover are installed through locking bolts, and the second spring washer is arranged between the locking bolts and the bearing cover.

[0011] Furthermore, a combined spacer is fitted onto the shaft between the support roller axle and the support roller.

[0012] Furthermore, the inner wall of the combined spacer is uniformly provided with several meshing teeth along the axial direction.

[0013] The advantages of this utility model are: the utility model has a simple structure, adopts a skeleton oil seal, has good sealing performance, prevents water and other impurities from entering the support roller, and has low cost and small size, making it suitable for harvesters in hilly and mountainous areas. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a utility model Figure 1 A sectional view along the AA direction;

[0017] Figure 3 This is a perspective view of the present invention;

[0018] In the diagram: 1. Bolt, 2. First spring washer, 3. Flat washer, 4. Bearing cap, 5. Support roller, 6. Spacer, 7. Bearing, 8. Frame oil seal, 9. Support roller shaft, 10. Key, 11. Combined spacer, 12. Locking bolt, 13. Second spring washer, 15. Screw hole. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0020] like Figures 1 to 3 The track roller device for a tracked harvester shown includes a track roller shaft 9. Track roller assemblies are installed at both ends of the track roller shaft 9. Each track roller assembly includes a track roller 5 and a bearing cover 4. The track roller 5 is sleeved on both ends of the track roller shaft 9. The shaft body between the track roller 5 and the track roller shaft 9 is fitted with a bearing 7 and a skeleton oil seal 8 from the outside to the inside.

[0021] like Figure 2 As shown, there are two skeleton oil seals (8). Skeleton oil seals are relatively small in size. Due to their excellent sealing performance and wear resistance, skeleton oil seals are suitable for agricultural machinery, including small tracked harvesters. They effectively prevent lubricating oil leakage, protect mechanical parts from dirt and dust intrusion, thereby extending the service life of the equipment. They are typically used under extreme conditions such as high speed, high temperature, and high pressure. The reliability and durability of skeleton oil seals are crucial to ensuring the normal operation of equipment.

[0022] The support roller shaft 9 has a keyway on its shaft body, and a key 10 is installed in the keyway. Both ends of the support roller shaft 9 have screw holes 15, and bolts 1 are screwed into the screw holes 15. A flat washer 3 and a first spring washer 2 are inserted between the bolt 1 and the end face of the support roller shaft 9.

[0023] Among them, the first spring washer 2 is an annular sealing element with a certain elasticity. It can deform when subjected to pressure or compression, thereby providing elastic support and sealing effect. After the bolt 1 is tightened, it applies a force to the bolt 1, increasing the friction between the bolt 1 and the bolt hole, and preventing the bolt from loosening due to vibration of the equipment during operation.

[0024] There are two bearings 7. A spacer 6 is fitted on the shaft of the support roller 9 between the two bearings 7 to adjust the bearing clearance and preload, which helps to improve the stability and service life of the equipment.

[0025] The support roller 5 is equipped with a bearing cover 4 that matches it. The support roller 5 and the bearing cover 4 are connected by a locking bolt 12. A second spring washer 13 is provided between the locking bolt 12 and the bearing cover 4.

[0026] A combined spacer 11 is fitted on the axle between the support roller axle 9 and the support roller 5.

[0027] The inner wall of the combined spacer 11 is uniformly provided with several meshing teeth along the axial direction.

[0028] The combined spacer 11 features a simple structure, rapid adjustment, and high precision, significantly reducing equipment costs and shortening the parts processing cycle. Overall height adjustment is achieved by adjusting the meshing height between the upper and lower spacers, meeting slitting size requirements. Installation and maintenance are relatively simple, facilitating disassembly and replacement, thus improving maintenance efficiency.

[0029] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A track harvester ground wheel assembly characterized by: The application relates to a supporting wheel axle (9), both ends of which are provided with supporting wheel assemblies, each of which comprises a supporting wheel (5) and a bearing cover (4), the supporting wheel (5) is sleeved at both ends of the supporting wheel axle (9), and the shaft body between the supporting wheel (5) and the supporting wheel axle (9) is sequentially sleeved with a bearing (7) and a skeleton oil seal (8) from outside to inside; a combined spacer sleeve (11) is sleeved on the shaft body between the supporting wheel axle (9) and the supporting wheel (5).

2. A track harvester wheel assembly as claimed in claim 1 wherein: The number of the skeleton oil seals (8) is two.

3. A track harvester wheel assembly as set forth in claim 1 wherein: The shaft body of the supporting wheel axle (9) is provided with a key groove, a key (10) is arranged in the key groove, both ends of the supporting wheel axle (9) are provided with screw holes (15), bolts (1) are screwed into the screw holes (15), flat washers (3) and first spring washers (2) are arranged between the bolts (1) and the end faces of the supporting wheel axle (9).

4. The track-type harvester wheel assembly of claim 1 wherein: The number of the bearings (7) is two, and a spacer sleeve (6) is sleeved on the shaft body of the supporting wheel axle (9) between the two bearings (7).

5. The track harvester wheel assembly of claim 1, wherein: The supporting wheel (5) is provided with a bearing cover (4) matched therewith, the supporting wheel (5) and the bearing cover (4) are arranged through locking bolts (12), and second spring washers (13) are arranged between the locking bolts (12) and the bearing cover (4).

6. A track harvester wheel assembly as set forth in claim 1 wherein: The sleeve inner wall of the combined spacer sleeve (11) is uniformly provided with a plurality of meshing teeth in the axial direction.

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