Drive axle of high-horsepower harvesting machine

By fixedly connecting the planet wheel to the needle roller bearing, the problem of axial movement of the planet wheel is solved, the mechanical stability in the high-power agricultural machinery is achieved, and the stability of the drive axle is improved.

CN223294200UActive Publication Date: 2025-09-02YANCHENG RONGNAN MACHINERY MFG
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422260613.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-14
Publication Date
2025-09-02
Estimated Expiration
2034-09-14

AI Technical Summary

Technical Problem

The connection between the planetary wheel and the rolling needle in the existing harvesting mechanical drive axle causes axial movement, affecting mechanical stability, and the problem is more significant, especially in high-power agricultural machinery.

Method used

The needle roller structure is changed to a needle roller bearing structure, the planet wheel and the needle roller bearing are integrated, and fixed to the planet wheel shaft through a spring to avoid axial movement of the planet wheel.

Benefits of technology

Maintaining the mechanical stability in the high-power agricultural machinery, avoiding the axial movement of the planetary wheels, and improving the stability of the drive axle.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223294200U_ABST
    Figure CN223294200U_ABST
Patent Text Reader

Abstract

The utility model discloses a high-horsepower harvesting machinery drive axle which comprises a front axle shell, hub discs are installed at the two ends of the front axle shell, a drive shaft is arranged in the front axle shell, the drive shaft is in transmission connection with the hub discs, planet wheels are arranged in the hub discs, one side of each planet wheel is in transmission connection with the drive shaft, and the other side of each planet wheel is in transmission connection with the drive shaft. One side of the planet wheel is meshed with the hub disc, the other side of the planet wheel is meshed with a gear ring, the gear ring is in transmission connection with the hub disc, the planet wheel is installed on a planet wheel shaft through a needle bearing, the planet wheel is fixedly connected with the needle bearing, and the needle bearing is fixedly connected with the planet wheel shaft. According to the utility model, a needle roller structure is changed into a needle roller bearing structure, the planet wheel and the roll correcting bearing are connected into a whole, and then the planet wheel and the roll correcting shaft are fixed on the planet wheel shaft through the snap spring, so that the axial movement of the planet wheel is avoided, and the stability can be still kept after the horsepower of an agricultural machine is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a high-horsepower harvesting machinery drive axle. Background Art

[0002] With the continuous development of large-scale and intelligent agricultural machinery, high-horsepower agricultural machinery, as the power source of agricultural machinery, has an increasingly wider application range. The existing harvesting machinery drive axle structure, such as Figure 3 As described above, the planetary gear and the planetary gear shaft are connected by needle rollers. When the machine is moving, the planetary gear and the needle roller 12 will move axially and collide with the gear support plate 13. After the horsepower of the agricultural machinery is further increased, the problem becomes more obvious. Utility Model Content

[0003] The purpose of the utility model is to provide a high-horsepower harvesting machinery drive axle. By changing the needle roller structure to a needle roller bearing structure, the planetary gear and the aligning bearing are connected as one, and the planetary gear and the aligning shaft are fixed to the planetary gear shaft, the axial movement of the planetary gear is avoided, and stability can still be maintained after the horsepower of the agricultural machinery is increased.

[0004] In order to achieve the purpose of the present utility model, the present utility model provides a high-horsepower harvesting machinery drive axle, including: a front axle housing, hub discs are installed at both ends of the front axle housing, a drive shaft is arranged in the front axle housing, the drive shaft is transmission-connected to the hub disc, a planetary gear is arranged in the hub disc, one side of the planetary gear is transmission-connected to the drive shaft, and the other side of the planetary gear is meshed with a ring gear, the ring gear is transmission-connected to the hub disc, the planetary gear is installed on the planetary gear shaft through a needle bearing, the planetary gear is fixedly connected to the needle bearing, and the needle bearing is fixedly connected to the planetary gear shaft.

[0005] As a preferred technical solution of the present invention, a differential lock mechanism is provided at the middle portion of the front axle housing, and the drive shaft is drivingly connected to the differential lock mechanism.

[0006] As a preferred technical solution of the present invention, steering knuckle mechanisms are further provided at both ends of the front axle housing, and the wheel hub is installed on the outside of the steering knuckle mechanism.

[0007] As a preferred technical solution of the present invention, a first retaining ring groove is formed on the outer wall of the needle roller bearing, a retaining ring is arranged in the first retaining ring groove, and the planetary gear and the needle roller bearing are connected as a whole through the first retaining ring.

[0008] As a preferred technical solution of the present invention, a second retaining ring groove is opened on the outer wall of the planetary gear shaft, a retaining ring is arranged in the second retaining ring groove, and the planetary gear and needle roller bearing are fixedly connected to the planetary gear shaft through the retaining ring.

[0009] Compared with the existing technology, the utility model provides a high-horsepower harvesting machinery drive axle, which has the following beneficial effects:

[0010] The utility model changes the needle roller structure into a needle roller bearing structure, connects the planetary gear and the aligning bearing into one, and then fixes the planetary gear and the aligning shaft to the planetary gear shaft through a retaining spring, thereby avoiding axial movement of the planetary gear and maintaining stability after the horsepower of the agricultural machinery is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the hub structure of the utility model;

[0013] Figure 3 This is a schematic diagram of the structure of an agricultural machinery hub disc with a needle roller structure.

[0014] 1 is the front axle housing, 2 is the wheel hub, 3 is the drive shaft, 4 is the planetary gear, 5 is the ring gear, 6 is the needle roller bearing, 7 is the planetary gear shaft, 8 is the differential lock mechanism, 9 is the steering knuckle mechanism, 10 is the first retaining ring groove, 11 is the second retaining ring groove, 12 is the needle roller, and 13 is the gear support plate. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] See also Figure 1-Figure 3 The embodiment of the utility model provides a high-horsepower harvesting machinery drive axle, including: a front axle housing 1, hub discs 2 are installed at both ends of the front axle housing 1, a drive shaft 3 is arranged in the front axle housing 1, the drive shaft 3 is transmission-connected to the hub disc 2, a planetary gear 4 is arranged in the hub disc 2, one side of the planetary gear 4 is transmission-connected to the drive shaft 3, and the other side of the planetary gear 4 is meshed with a ring gear 5, the ring gear 5 is transmission-connected to the hub disc 2, the planetary gear 4 is mounted on the planetary gear shaft 7 through a needle bearing 6, the planetary gear 4 is fixedly connected to the needle bearing 6, and the needle bearing 6 is fixedly connected to the planetary gear shaft 7.

[0017] In one embodiment of the present invention, a differential lock mechanism 8 is provided in the middle of the front axle housing 1 , and the drive shaft 3 is transmission-connected to the differential lock mechanism 8 .

[0018] In one embodiment of the present invention, steering knuckle mechanisms 9 are further provided at both ends of the front axle housing 1 , and the wheel hub 2 is installed on the outside of the steering knuckle mechanisms 9 .

[0019] In one embodiment of the present invention, a first retaining ring groove 10 is formed on the outer wall of the needle roller bearing 6 , a retaining ring is provided in the first retaining ring groove 10 , and the planetary gear 4 and the needle roller bearing 6 are connected as a whole via the first retaining ring.

[0020] In one embodiment of the present invention, a second retaining ring groove 11 is formed on the outer wall of the planetary gear shaft 7 , a retaining ring is provided in the second retaining ring groove 11 , and the planetary gear 4 and the needle roller bearing 6 are fixedly connected to the planetary gear shaft 7 via the retaining ring.

[0021] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A high-horsepower harvesting machinery drive axle, characterized in that: include: A front axle housing (1), wherein hub discs (2) are installed at both ends of the front axle housing (1), a drive shaft (3) is provided in the front axle housing (1), the drive shaft (3) is transmission-connected to the hub disc (2), a planetary gear (4) is provided in the hub disc (2), one side of the planetary gear (4) is transmission-connected to the drive shaft (3), the other side of the planetary gear (4) is meshedly connected to a ring gear (5), the ring gear (5) is transmission-connected to the hub disc (2), the planetary gear (4) is installed on a planetary gear shaft (7) through a needle roller bearing (6), the planetary gear (4) is fixedly connected to the needle roller bearing (6), and the needle roller bearing (6) is fixedly connected to the planetary gear shaft (7).

2. The high-horsepower harvesting machinery drive axle according to claim 1, characterized in that: A differential lock mechanism (8) is provided at the middle of the front axle housing (1), and the drive shaft (3) is drivingly connected to the differential lock mechanism (8).

3. The high-horsepower harvesting machinery drive axle according to claim 1, characterized in that: Steering knuckle mechanisms (9) are also provided at both ends of the front axle housing (1), and the wheel hub (2) is mounted on the outside of the steering knuckle mechanism (9).

4. The high-horsepower harvesting machinery drive axle according to claim 1, characterized in that: A first retaining ring groove (10) is formed on the outer wall of the needle roller bearing (6), a retaining ring is provided in the first retaining ring groove (10), and the planetary gear (4) and the needle roller bearing (6) are connected as a whole via the first retaining ring.

5. The high-horsepower harvesting machinery drive axle according to claim 1, characterized in that: A second retaining ring groove (11) is provided on the outer wall of the planetary gear shaft (7), a retaining ring groove (11) is provided in the second retaining ring groove (11), and the planetary gear (4) and the needle roller bearing (6) are fixedly connected to the planetary gear shaft (7) via the retaining ring.