Novel drive axle

Abstract

The utility model discloses a novel drive axle which is characterized in that a first shaft seat is arranged on the lower side of a shell, a second shaft seat is arranged on the lower side of a cover plate, the first shaft seat is correspondingly matched with the second shaft seat, the shell is matched with the cover plate and is connected with the cover plate through a bolt, and the first shaft seat and the second shaft seat are provided with a driving shaft through a bearing in a matched mode. A driving gear is fixedly arranged on one side of the driving shaft and arranged on the inner sides of the first shaft seat and the second shaft seat, a driven gear is arranged in the middle of the shell and the middle of the cover plate in a matched mode, the driven gear is in transmission connection with the driving gear, maintenance and component replacement are convenient, each module can be independently designed and optimized, and the cost is reduced. The connecting structure of the axle housing and the hub seat is simple, assembly is convenient, stability is improved, errors caused by stacking of multiple parts are avoided, oil leakage is avoided through the arrangement of the second oil seal, stability is improved, and load distribution is optimized and bearing capacity is improved through the step-shaped structure arranged between the supporting shaft and the hub seat.

Description

Technical Field

[0001] This utility model relates to the field of drive axle technology, specifically a novel drive axle. Background Technology

[0002] The widespread use of mini loaders in construction, landscaping, and other fields has placed higher demands on the load-bearing capacity and ease of maintenance of drive axles. While existing drive axle technology can achieve basic functions, it has shortcomings in structural design:

[0003] 1. Due to the high integration of components, the integrated drive axle requires complete disassembly during maintenance, which is time-consuming and labor-intensive, and is not conducive to subsequent iteration and optimization;

[0004] 2. The connection structure between the axle housing and the hub seat is complex, such as the stacking of multi-stage bearings and gaskets, which is prone to assembly errors and sealing failures. The wheel side structure lacks modular optimization, resulting in low assembly and disassembly efficiency.

[0005] These problems not only increase the cost of assembly and subsequent maintenance, but also limit the reliability of the drive axle under high load conditions. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a new type of drive axle to address the shortcomings of the existing technology and solve at least one of the above-mentioned technical problems.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A novel drive axle includes a housing and a cover plate. A first bearing seat is provided on the lower side of the housing, and a second bearing seat is provided on the lower side of the cover plate. The first bearing seat and the second bearing seat are correspondingly fitted. The housing and the cover plate are fitted together and connected by bolts. A drive shaft is provided on the first bearing seat and the second bearing seat through bearing fit. A drive gear is fixedly provided on one side of the drive shaft and is located inside the first bearing seat and the second bearing seat. A driven gear is fitted in the middle of the housing and the cover plate. The driven gear is drivingly connected to the drive gear. A connecting seat is bolted to the middle of the driven gear. A cross shaft seat is bolted to the connecting seat. A cross shaft is fixedly provided on the connecting seat and the cross shaft seat. The system is equipped with planetary bevel gears. Shaft holes are provided on the sides of the housing and cover plate. Half-shaft flanges are mounted on the sides of the housing and cover plate via bearings. Half-shaft bevel gears are mounted at the ends of the half-shaft flanges. The half-shaft bevel gears on both sides are connected to the planetary bevel gears for transmission. Bridge housings are threaded onto the sides of the housing and cover plate. A support shaft is connected to the end of the bridge housing. A through hole is provided in the middle of the support shaft. The shaft end of the half-shaft flange passes through the support shaft and bridge housing. A hub seat is bolted to the inner side of the flange end of the half-shaft flange. The middle of the hub seat mates with the side of the support shaft, and the hub seat and support shaft are connected via bearings. A brake drum is mounted on one side of the hub seat, and a brake is mounted on one side of the support shaft. The brake mates with the brake drum.

[0008] Furthermore, the side of the support shaft is provided with a stepped structure, and the middle of the hub seat is provided with a stepped structure that cooperates with the stepped structure on the support shaft. Several bearings that connect the hub seat and the support shaft are evenly arranged on the stepped structure.

[0009] Furthermore, a sealing gasket is provided between the flange end of the half-shaft flange and the hub seat, and a second oil seal is provided at the end of the hub seat and the second oil seal is connected to the side of the support shaft.

[0010] Furthermore, the second oil seal is a double-lip oil seal.

[0011] Furthermore, the support shaft is welded to the bridge housing.

[0012] Furthermore, the drive shaft is provided with a first oil seal and the first oil seal is connected to the second shaft seat.

[0013] Furthermore, the first oil seal is a double-lip oil seal.

[0014] The beneficial effects of this utility model are:

[0015] This invention divides the drive axle into multiple relatively independent modules, facilitating maintenance and component replacement. Each module can be independently designed and optimized. The connection structure between the axle housing and the hub seat is simple, making assembly easier and improving stability. It avoids errors caused by stacking multiple components. The second oil seal prevents oil leakage and improves stability. Furthermore, the device optimizes load distribution and improves load-bearing capacity by setting a stepped structure between the support shaft and the hub seat. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Housing; 2. Cover plate; 3. First shaft seat; 4. Second shaft seat; 5. Drive shaft; 6. Drive gear; 7. First oil seal; 8. Bridge housing; 9. Half shaft flange; 10. Driven gear; 11. Connecting seat; 12. Cross shaft seat; 13. Cross shaft; 14. Planetary bevel gear; 15. Half shaft bevel gear; 16. Support shaft; 17. Hub seat; 18. Second oil seal; 19. Brake drum; 20. Brake. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example 1: See Figure 1This is a schematic diagram of the structure of this utility model, including a housing 1 and a cover plate 2. A first bearing 3 is provided on the lower side of the housing 1, and a second bearing 4 is provided on the lower side of the cover plate 2. The first bearing 3 and the second bearing 4 are correspondingly fitted. The housing 1 and the cover plate 2 are fitted together and connected by bolts. A cavity for placing components is provided inside the housing 1 and the cover plate 2 assembly. A drive shaft 5 is provided on the first bearing 3 and the second bearing 4 through bearing cooperation. A drive gear 6 is fixedly provided on one side of the drive shaft 5 and is located inside the first bearing 3 and the second bearing 4. The drive shaft 5 is used for transmission connection with a power device. The housing 1 and the cover plate 2... A driven gear 10 is provided in the middle, and the driven gear 10 is connected to the driving gear 6. The driving gear 6 drives the driven gear 10 to rotate. A connecting seat 11 is bolted to the middle of the driven gear 10. A cross shaft seat 12 is bolted to the connecting seat 11. A cross shaft 13 is fixedly mounted on the connecting seat 11 and the cross shaft seat 12. Planetary bevel gears 14 are mounted on the cross shaft 13. The rotation of the driven gear 10 drives the cross shaft 13 to rotate, which in turn drives the planetary bevel gears 14 to rotate around. There are four planetary bevel gears 14. Shaft holes are provided on the sides of the housing 1 and the cover plate 2. The sides of the cover plate 2 are equipped with half-shaft flanges 9 via bearings, and the housing 1 and cover plate 2 are equipped with limit bearings to facilitate the disassembly and assembly of the half-shaft flanges 9. Half-shaft bevel gears 15 are located at the ends of the half-shaft flanges 9. The rotation of the cross shaft 13 drives the half-shaft bevel gears 15 to rotate. The half-shaft bevel gears 15 on both sides are engaged with planetary bevel gears 14 for transmission. The half-shaft bevel gears 15 on both sides engage with and limit the planetary bevel gears 14, which in turn engage with and limit the driven gear 10. Bridge housings 8 are threadedly connected to the sides of the housing 1 and cover plate 2. A support shaft 16 is connected to the end of the bridge housing 8, and the support shaft 16 is used to support the wheels. A through hole is provided in the middle of the hub seat 17 and the support shaft 16. The shaft end of the half-shaft flange 9 passes through the support shaft 16 and the axle housing 8. The hub seat 17 is bolted to the inner side of the flange end of the half-shaft flange 9. The middle part of the hub seat 17 mates with the side of the support shaft 16, and the hub seat 17 and the support shaft 16 are connected by a bearing. A brake drum 19 is provided on one side of the hub seat 17, and a brake 20 is provided on one side of the support shaft 16. The brake 20 mates with the brake drum 19. The brake 20 uses a brake transmission mechanism to make the brake shoes press the brake friction pads against the inner side of the brake drum 19, thereby generating braking force.

[0027] Specifically, the side of the support shaft 16 is provided with a stepped structure, and the middle of the hub seat 17 is provided with a stepped structure that cooperates with the stepped structure on the support shaft 16. Several bearings that connect the hub seat 17 and the support shaft 16 are evenly arranged on the stepped structure. The stepped structure optimizes the load distribution and improves the load-bearing capacity.

[0028] Specifically, a sealing gasket is provided between the flange end of the half-shaft flange 9 and the hub seat 17, and a second oil seal 18 is provided at the end of the hub seat 17 and the second oil seal 18 is connected to the side of the support shaft 16, which effectively prevents oil leakage and improves service life.

[0029] Specifically, the second oil seal 18 is a double-lip oil seal.

[0030] Specifically, the support shaft 16 is welded to the axle housing 8.

[0031] Specifically, the drive shaft 5 is provided with a first oil seal 7 and the first oil seal 7 is connected to the second shaft seat 4 to prevent oil leakage from one side of the drive shaft 5.

[0032] Specifically, the first oil seal 7 is a double-lip oil seal.

[0033] This invention divides the drive axle into multiple relatively independent modules or components, connected by bolts. During maintenance and component replacement, only the corresponding module or component needs to be repaired or replaced, reducing maintenance costs. Each module can be independently designed and optimized, and can be directly replaced after optimization.

[0034] When replacing the axle housing 8 and support shaft 16 with new materials, the operator removes the bolts connecting the axle housing 8 to the housing 1 and cover plate 2, removes the axle housing 8 and the half-shaft flange 9 together. The diameter of the half-shaft bevel gear 15 is smaller than the diameter of the shaft hole. The bolts connecting the brake drum 19 to the hub seat 17 are removed. The brake 20 and support shaft 16 are also bolted together. The bolts connecting the brake 20 and support shaft 16 are removed, as are the bolts between the half-shaft flange 9 and the hub seat 17. The components are disassembled, and the new axle housing 8 is bolted onto the housing 1 and cover plate 2. The support shaft 16 is connected to the end of the new axle housing 8. The brake 20 is fixed to the support shaft 16 with bolts, the hub seat 17 is connected to the support shaft 16 through bearings, the half-shaft flange 9 is assembled into the axle housing 8, and the half-shaft bevel gear 15 of the half-shaft flange 9 is engaged with the planetary bevel gear 14. The half-shaft flange 9 is then connected to the hub seat 17 with bolts, the brake drum 19 is installed on the hub seat and the hub seat 19 is engaged with the brake 20, thus completing the replacement of the axle housing 8. The second oil seal 18 is used to prevent oil leakage and improve stability. This device also optimizes the load distribution and improves the load-bearing capacity by setting a stepped structure between the support shaft 16 and the hub seat 17.

[0035] The above are merely optional embodiments of this utility model and are not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0036] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

Claims

1. A novel drive axle, characterized in that: The device includes a housing (1) and a cover plate (2). A first bearing seat (3) is provided on the lower side of the housing (1), and a second bearing seat (4) is provided on the lower side of the cover plate (2). The first bearing seat (3) and the second bearing seat (4) are correspondingly fitted. The housing (1) and the cover plate (2) are fitted together and connected by bolts. A drive shaft (5) is provided between the first bearing seat (3) and the second bearing seat (4) through bearing fit. A drive gear (6) is fixedly provided on one side of the drive shaft (5), and the drive gear (6) is located between the first bearing seat (3) and the second bearing seat (4). Inside the two-shaft seat (4), a driven gear (10) is provided in the middle of the housing (1) and the cover plate (2). The driven gear (10) is connected to the driving gear (6) for transmission. A connecting seat (11) is bolted to the middle of the driven gear (10). A cross shaft seat (12) is bolted to the connecting seat (11). A cross shaft (13) is fixedly provided in the connecting seat (11) and the cross shaft seat (12). A planetary bevel gear (14) is provided on the cross shaft (13). The housing ( 1) The side of the cover plate (2) is provided with shaft holes. The side of the housing (1) and the cover plate (2) are provided with half-shaft flanges (9) through bearings. The end of the half-shaft flange (9) is provided with a half-shaft bevel gear (15). The half-shaft bevel gears (15) on both sides are connected to the planetary bevel gears (14) for transmission. The side of the housing (1) and the cover plate (2) are connected with bridge housings (8) through threads. The end of the bridge housing (8) is connected with a support shaft (16). The middle of the support shaft (16) is provided with a through hole. The shaft end of the half-shaft flange (9) passes through the support shaft (16) and the bridge housing (8). The inner side of the flange end of the half-shaft flange (9) is connected to the hub seat (17) by bolts. The middle part of the hub seat (17) is engaged with the side of the support shaft (16), and the hub seat (17) and the support shaft (16) are connected by bearings. A brake drum (19) is provided on one side of the hub seat (17), and a brake (20) is provided on one side of the support shaft (16). The brake (20) is engaged with the brake drum (19).

2. The novel drive axle according to claim 1, characterized in that: The side of the support shaft (16) is provided with a stepped structure, and the middle of the hub seat (17) is provided with a stepped structure that cooperates with the stepped structure on the support shaft (16). The bearings connecting the hub seat (17) and the support shaft (16) are arranged in a plurality of uniformly fitted on the stepped structure.

3. The novel drive axle according to claim 1, characterized in that: A sealing gasket is provided between the flange end of the half-shaft flange (9) and the hub seat (17), and a second oil seal (18) is provided at the end of the hub seat (17) and the second oil seal (18) is connected to the side of the support shaft (16).

4. The novel drive axle according to claim 3, characterized in that: The second oil seal (18) is a double-lip oil seal.

5. The novel drive axle according to claim 1, characterized in that: The support shaft (16) is welded to the bridge housing (8).

6. The novel drive axle according to claim 1, characterized in that: The drive shaft (5) is provided with a first oil seal (7) and the first oil seal (7) is connected to the second shaft seat (4).

7. The novel drive axle according to claim 6, characterized in that: The first oil seal (7) is a double-lip oil seal.

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