Assembly for drive axle

Abstract

The utility model discloses an assembly for a drive axle. The assembly comprises an axle housing body, a connecting flange, a multi-angle sealing assembly and a speed reducer housing assembly. A connecting flange is integrally formed on one side of the axle housing body. The multi-angle sealing assembly comprises a multi-angle sealing gasket, the multi-angle sealing gasket is assembled on one side of the connecting flange in a clamped mode, a limiting inner pipe is sleeved with the multi-angle sealing gasket, the limiting inner pipe is fixedly connected with the inner wall of the connecting flange, and an auxiliary sealing ring is arranged between the multi-angle sealing gasket and the limiting inner pipe. The speed reducer shell assembly comprises a main speed reducer shell, and a V-shaped extrusion block is integrally formed on the side, close to the axle shell body, of the main speed reducer shell. According to the assembly for the drive axle, due to the arrangement of corresponding structures, the connection sealing performance of the drive axle housing is improved, the risk of oil leakage of the drive axle housing in the long-time use or multiple disassembly and assembly processes is reduced, and the use stability of the drive axle housing is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of drive axle components, and in particular relates to a component for a drive axle. Background Art

[0002] The drive axle is a terminal transmission mechanism of the transmission system, which is mainly used to change the speed and torque from the transmission and transmit this power to the drive wheels. Common drive axles are generally composed of the main reducer, differential, transmission device and drive axle housing. Among them, the drive axle housing is the assembly base for installing the main reducer, differential, half shafts and transmission device, and is mainly used to support and protect various transmission components.

[0003] The common drive axle housing is mainly composed of the axle housing body, rear cover, main reducer housing and half-axle sleeve. Among them, the rear cover and the axle housing body are mostly integrated, and the main reducer housing and the axle housing body are mainly connected by bolts. Since various transmission components are arranged in the drive axle housing, in order to ensure the smooth operation of the transmission components, it is usually necessary to add lubricating oil to the drive axle housing, which places certain requirements on the sealing of the drive axle housing.

[0004] In the prior art, a sealing ring is usually placed between the main reducer housing and the axle housing body to ensure the sealing of the drive axle housing. However, in actual application, the sealing ring will be affected by factors such as environmental corrosion and extrusion fatigue, resulting in poor sealing effect. This will cause the drive axle housing to leak oil after being used for a certain period of time or after multiple disassembly and assembly.

[0005] Therefore, in view of the above technical problems, it is necessary to provide a drive axle component.

[0006] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0007] The purpose of the utility model is to provide a drive axle assembly, which can improve the connection sealing performance of the drive axle housing.

[0008] In order to achieve the above-mentioned purpose, a specific embodiment of the present invention provides a drive axle assembly, including: an axle housing body, a connecting flange, a multi-angle sealing assembly, and a reducer housing assembly.

[0009] A connecting flange is integrally formed on one side of the bridge housing body.

[0010] The multi-angle sealing assembly is assembled on one side of the bridge housing body, and the multi-angle sealing assembly includes a multi-angle sealing gasket, which is snap-fitted and assembled on one side of the connecting flange. A limiting inner tube is sleeved inside the multi-angle sealing gasket, and the limiting inner tube is fixedly connected to the inner wall of the connecting flange. An auxiliary sealing ring is arranged between the multi-angle sealing gasket and the limiting inner tube, and the auxiliary sealing ring is sleeved on the outside of the connecting flange.

[0011] The reducer housing assembly is assembled on one side of the multi-angle sealing gasket, and the reducer housing assembly includes a main reducer housing. The main reducer housing is arranged on the side of the multi-angle sealing gasket away from the bridge housing body, and the side of the main reducer housing close to the bridge housing body is integrally formed with a V-shaped extrusion block.

[0012] In one or more embodiments of the present invention, a rear cover is integrally formed on the side of the axle housing body facing away from the connecting flange. This rear cover assists the axle housing body in assembling and sealing the final drive and differential. Axle shaft sleeves are integrally formed on both sides of the axle housing body. These sleeves support, limit, and protect the axle shafts.

[0013] In one or more embodiments of the present invention, the connecting flange is provided with a plurality of evenly distributed assembly bolt holes. These assembly bolt holes facilitate the use of assembly bolts to secure the axle housing body to the final reducer housing. A plurality of positioning holes are provided on the side of the connecting flange proximal to the multi-angle sealing gasket. These positioning holes are staggered with the assembly bolt holes. The multi-angle sealing gasket is assembled and positioned by the interaction of positioning posts and the positioning holes.

[0014] In one or more embodiments of the present invention, the multi-angle sealing gasket is composed of a sealing ring body, a V-shaped sealing ring body and a side sealing ring. The sealing ring body is provided with a plurality of assembly avoidance holes, and the plurality of assembly avoidance holes are provided corresponding to the assembly bolt holes. By providing a plurality of assembly avoidance holes, a plurality of assembly bolts can be used to assemble and fix the connecting flange and the assembly flange. A plurality of positioning columns are integrally formed on the side of the sealing ring body close to the connecting flange, and the plurality of positioning columns are provided corresponding to the positioning holes. The coordination of the plurality of positioning columns and the positioning holes ensures the assembly stability of the multi-angle sealing gasket and reduces the risk of slippage of the multi-angle sealing gasket during the assembly process. The side sealing ring is sleeved on the outside of the limiting inner tube. The limiting inner tube and the main reducer housing are auxiliary sealed by the side sealing ring.

[0015] In one or more embodiments of the present invention, a V-shaped sealing groove is defined on the side of the connecting flange proximal to the multi-angle sealing gasket. This groove corresponds to the V-shaped sealing ring body and the V-shaped extrusion block. This facilitates the assembly and sealing of the axle housing body and the final reducer housing through the cooperation of the V-shaped sealing ring body and the V-shaped sealing groove. Furthermore, the cooperation of the V-shaped sealing groove and the V-shaped sealing ring body enables multi-angle sealing between the axle housing body and the final reducer housing, ensuring a tight connection between the axle housing body and the final reducer housing.

[0016] In one or more embodiments of the present invention, an assembly groove is provided in the inner limiting tube, and the auxiliary sealing ring is mounted in the assembly groove. The assembly groove ensures the assembly stability of the auxiliary sealing ring and reduces the possibility of the auxiliary sealing ring slipping and deflecting during the actual assembly process. An inflation connecting tube is fixedly connected to one side of the auxiliary sealing ring located in the assembly groove. The inflation connecting tube serves to connect the auxiliary sealing ring with the air guide channel, so that the compressed gas transported in the air guide channel can be transported along the inflation connecting tube to the auxiliary sealing ring, thereby facilitating the control of the expansion sealing state of the auxiliary sealing ring.

[0017] In one or more embodiments of the present invention, air flow channels are defined within the axle housing body and the inner limiting tube. These channels communicate with the inflation connection pipe, facilitating the delivery of compressed gas into the inflation connection pipe through the channels. An inflation nozzle is threadedly mounted on the outer surface of the axle housing body and communicates with the air flow channels. The inflation nozzle is connected to an external compressed gas delivery pipe.

[0018] In one or more embodiments of the present invention, a mounting flange is integrally formed on the side of the final reducer housing proximate the axle housing body. This facilitates assembly and fixation of the final reducer housing to the axle housing body by means of the mounting flange. The mounting flange is provided with a plurality of evenly distributed connecting through-holes, each corresponding to mounting bolt holes. The provision of the connecting through-holes facilitates assembly and fixation of the mounting flange to the connecting flange using mounting bolts.

[0019] In one or more embodiments of the present invention, the mounting flange is fixedly mounted with multiple sets of evenly distributed mounting bolts, each of which penetrates the connecting through-holes, the mounting avoidance holes, and the mounting bolt holes. The mounting flange and the connecting flange are assembled and fixed by the multiple sets of mounting bolts.

[0020] Compared with the prior art, the drive axle assembly disclosed in the utility model improves the connection sealing of the drive axle housing through the setting of corresponding structures, reduces the risk of oil leakage of the drive axle housing during long-term use or multiple disassembly and assembly, and ensures the stability of the drive axle housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some of the embodiments described in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts.

[0022] Figure 1 This is a structural perspective view of a drive axle assembly in one embodiment of the present utility model;

[0023] Figure 2 This is a perspective view of the structure of a drive axle assembly from another angle in one embodiment of the present invention;

[0024] Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle;

[0025] Figure 4 This is a structural diagram of a drive axle assembly in one embodiment of the present utility model;

[0026] Figure 5 This is a side sectional view of a drive axle assembly in one embodiment of the present utility model;

[0027] Figure 6 for Figure 5 Schematic diagram of the structure at B in the middle;

[0028] Figure 7 It is a three-dimensional diagram of a drive axle assembly in one embodiment of the present invention.

[0029] Description of main reference numerals:

[0030] 1-bridge housing body, 101-connecting flange, 102-rear cover, 103-half-axle sleeve, 2-multi-angle sealing assembly, 201-multi-angle sealing gasket, 2011-sealing ring body, 2012-V-shaped sealing ring body, 2013-side sealing ring, 202-limiting inner tube, 203-auxiliary sealing ring, 204-positioning column, 205-inflating connecting pipe, 206-inflating nozzle, 3-reducer housing assembly, 301-main reducer housing, 302-V-shaped extrusion block, 303-assembly flange, 304-assembly bolts. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0032] like Figures 1 to 7 As shown, a drive axle assembly in one embodiment of the present invention includes: an axle housing body 1, a connecting flange 101, a multi-angle sealing assembly 2, and a reducer housing assembly 3.

[0033] like Figures 1 to 4 As shown, a connecting flange 101 is integrally formed on one side of the axle housing body 1. The axle housing body 1 and the final reducer housing 301 can be assembled and fixed by assembling and fixing the connecting flange 101.

[0034] like Figures 5 to 7 As shown, a rear cover 102 is integrally formed on the side of the axle housing body 1 facing away from the connecting flange 101. This rear cover 102 assists in assembling and sealing the final drive and differential. Axle shaft sleeves 103 are integrally formed on both sides of the axle housing body 1. These sleeves support, limit, and protect the axle shafts.

[0035] Specifically, a plurality of evenly distributed assembly bolt holes are provided on the connection flange 101. The assembly bolt holes facilitate the use of assembly bolts 304 to connect and fix the axle housing body 1 and the final reducer housing 301.

[0036] like Figures 2 to 4 As shown, the multi-angle sealing assembly 2 is assembled on one side of the axle housing body 1. The multi-angle sealing assembly 2 includes a multi-angle sealing gasket 201, which is snap-fitted onto one side of the connecting flange 101. This facilitates multi-angle sealing between the connecting flange 101 and the mounting flange 303 through the multi-angle sealing gasket 201.

[0037] like Figure 4 As shown, the multi-angle sealing gasket 201 consists of a sealing ring body 2011, a V-shaped sealing ring body 2012, and a side sealing ring 2013. The sealing ring body 2011 is provided with multiple assembly clearance holes, which correspond to the assembly bolt holes. The multiple assembly clearance holes allow multiple sets of assembly bolts 304 to assemble and secure the connecting flange 101 and the assembly flange 303.

[0038] Specifically, a V-shaped sealing groove is defined on the side of the connecting flange 101 proximal to the multi-angle sealing gasket 201. This groove corresponds to the V-shaped sealing ring body 2012 and the V-shaped extrusion block 302. This facilitates the assembly and sealing of the axle housing body 1 and the final drive housing 301 through the cooperation of the V-shaped sealing ring body 2012 and the V-shaped sealing groove. Furthermore, the cooperation of the V-shaped sealing groove and the V-shaped sealing ring body 2012 enables multi-angle sealing between the axle housing body 1 and the final drive housing 301, ensuring a tight connection between the two.

[0039] like Figures 2 to 3 As shown, multiple positioning posts 204 are integrally formed on the side of the sealing ring body 2011 proximal to the connecting flange 101. These posts 204 correspond to the positioning holes. The coordination of the multiple positioning posts 204 and the positioning holes ensures the assembly stability of the multi-angle sealing gasket 201, reducing the risk of slippage during assembly. A side sealing collar 2013 fits over the outer side of the limiting inner tube 202. This provides auxiliary sealing between the limiting inner tube 202 and the final reducer housing 301.

[0040] The connection flange 101 has a plurality of positioning holes on one side thereof close to the multi-angle sealing gasket 201. The positioning holes are staggered with the assembly bolt holes. The multi-angle sealing gasket 201 is assembled and positioned by the mutual cooperation between the positioning posts 204 and the positioning holes.

[0041] like Figures 1 to 6 As shown, a limiting inner tube 202 is inserted into the multi-angle sealing gasket 201, and the limiting inner tube 202 is fixedly connected to the inner wall of the connecting flange 101. The limiting inner tube 202 cooperates with the inner wall of the final reducer housing 301 to guide and limit the assembly process of the axle housing body 1 and the final reducer housing 301.

[0042] like Figures 1 to 6 As shown, an auxiliary sealing ring 203 is arranged between the multi-angle sealing gasket 201 and the limiting inner tube 202, and the auxiliary sealing ring 203 is sleeved on the outside of the connecting flange 101. The auxiliary sealing ring 203 is convenient for the auxiliary side sealing ring 2013 to connect and seal the main reducer housing 301 by expanding the auxiliary sealing ring 203.

[0043] Specifically, an assembly groove is provided in the limiting inner tube 202, and the auxiliary sealing ring 203 is sleeved in the assembly groove. The assembly groove ensures the assembly stability of the auxiliary sealing ring 203 and reduces the possibility of the auxiliary sealing ring 203 slipping and deviating during the actual assembly process.

[0044] like Figures 5 and 6As shown, an inflation connection tube 205 is fixedly connected to one side of the auxiliary sealing ring 203 located in the assembly groove. The inflation connection tube 205 connects the auxiliary sealing ring 203 with the air guide channel, allowing the compressed gas transported in the air guide channel to be transported along the inflation connection tube 205 into the auxiliary sealing ring 203, thereby facilitating the control of the expansion and sealing state of the auxiliary sealing ring 203.

[0045] Among them, the bridge housing body 1 and the limiting inner tube 202 are both provided with air guide channels, which are connected to the inflation connecting tube 205. It is convenient to transport compressed gas into the inflation connecting tube 205 through the air guide channels.

[0046] like Figures 5 and 6 As shown, the outer side of the bridge housing body 1 is threadedly equipped with an air filling nozzle 206, which is in communication with the air guide passage and is connected to an external compressed gas delivery pipe.

[0047] like Figures 2 to 6 As shown, the reducer housing assembly 3 is assembled on one side of the multi-angle sealing gasket 201. The reducer housing assembly 3 includes a final reducer housing 301, which is arranged on the side of the multi-angle sealing gasket 201 facing away from the axle housing body 1. A V-shaped extrusion block 302 is integrally formed on the side of the final reducer housing 301 proximal to the axle housing body 1. The V-shaped extrusion block 302 cooperates with the V-shaped sealing groove to squeeze the V-shaped sealing ring body 2012, thereby facilitating the multi-angle sealing and position limiting effect of the V-shaped sealing ring body 2012 on the assembly flange 303 and the connecting flange 101.

[0048] like Figures 5 and 6 As shown, a mounting flange 303 is integrally formed on one side of the final reducer housing 301 close to the axle housing body 1. The final reducer housing 301 and the axle housing body 1 can be assembled and fixed by assembling and fixing the mounting flange 303.

[0049] Specifically, the assembly flange 303 is provided with a plurality of evenly distributed connection through holes, which are corresponding to the assembly bolt holes, so as to facilitate the assembly bolts 304 to assemble and fix the assembly flange 303 and the connection flange 101.

[0050] like Figures 5 and 6 As shown, the mounting flange 303 is fixed with multiple sets of evenly distributed mounting bolts 304, which are all inserted through the connection through-holes, the mounting avoidance holes and the mounting bolt holes. The mounting flange 303 and the connecting flange 101 are assembled and fixed by the multiple sets of mounting bolts 304.

[0051] During specific use, the multi-angle sealing gasket 201 is assembled and positioned by plugging the positioning column 204 into the positioning hole, and the multi-angle sealing gasket 201 is auxiliary positioned by the engagement of the V-shaped sealing groove and the V-shaped sealing ring body 2012. Subsequently, the connecting flange 101, the sealing ring body 2011 and the assembly flange 303 can be assembled and fixed by means of multiple sets of assembly bolts 304 passing through the connecting through holes, assembly avoidance holes and assembly bolt holes.

[0052] During the assembly and fixing process, the V-shaped sealing ring body 2012 can be squeezed by the V-shaped extrusion block 302 and the V-shaped sealing groove so that the V-shaped sealing ring body 2012 can perform multi-angle sealing on the assembly flange 303 and the connecting flange 101, and the side sealing ring 2013 can be used to auxiliary seal the outer wall of the limiting inner tube 202 and the inner wall of the main reducer housing 301.

[0053] In addition, compressed gas can be delivered into the air guide channel by connecting the inflation nozzle 206 to an external compressed air pipe. The compressed gas is delivered to the auxiliary sealing ring 203 along the inflation connecting pipe 205. The auxiliary sealing ring 203 expands to assist in sealing the side sealing ring 2013, thereby ensuring the assembly and fixing sealing of the bridge housing body 1 and the main reducer housing 301.

[0054] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0055] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A drive axle assembly, characterized in that: include: A bridge housing body, wherein a connecting flange is integrally formed on one side of the bridge housing body; A multi-angle sealing assembly is assembled on one side of the axle housing body, the multi-angle sealing assembly includes a multi-angle sealing gasket, the multi-angle sealing gasket is snap-fitted and assembled on one side of the connecting flange, a limiting inner tube is sleeved within the multi-angle sealing gasket, the limiting inner tube is fixedly connected to the inner wall of the connecting flange, an auxiliary sealing ring is arranged between the multi-angle sealing gasket and the limiting inner tube, and the auxiliary sealing ring is sleeved on the outside of the connecting flange; The reducer housing assembly is assembled on one side of the multi-angle sealing gasket. The reducer housing assembly includes a main reducer housing. The main reducer housing is arranged on the side of the multi-angle sealing gasket away from the bridge housing body. The side of the main reducer housing close to the bridge housing body is integrally formed with a V-shaped extrusion block.

2. A drive axle assembly according to claim 1, characterized in that: A rear cover is integrally formed on one side of the bridge housing body away from the connecting flange, and half-axle sleeves are integrally formed on both sides of the bridge housing body.

3. The drive axle assembly according to claim 1, characterized in that: The connecting flange is provided with a plurality of evenly distributed assembly bolt holes, and a plurality of positioning holes are provided on a side of the connecting flange close to the multi-angle sealing gasket, and the plurality of positioning holes and the assembly bolt holes are staggered.

4. The drive axle assembly according to claim 3, characterized in that: The multi-angle sealing gasket consists of a sealing ring body, a V-shaped sealing ring body and a side sealing ring. The sealing ring body is provided with a plurality of assembly avoidance holes, and the plurality of assembly avoidance holes are arranged corresponding to the assembly bolt holes. The sealing ring body is integrally formed with a plurality of positioning columns on one side close to the connecting flange, and the plurality of positioning columns are arranged corresponding to the positioning holes. The side sealing ring is sleeved on the outside of the limiting inner tube.

5. The drive axle assembly according to claim 4, characterized in that: A V-shaped sealing groove is provided on one side of the connecting flange close to the multi-angle sealing gasket, and the V-shaped sealing groove is arranged corresponding to the V-shaped sealing ring body and the V-shaped extrusion block.

6. The drive axle assembly according to claim 1, characterized in that: An assembly groove is provided in the limiting inner tube, the auxiliary sealing ring is sleeved in the assembly groove, and an inflation connecting pipe is fixedly connected to one side of the auxiliary sealing ring located in the assembly groove.

7. The drive axle assembly according to claim 6, characterized in that: The bridge housing body and the limiting inner tube are both provided with air guide channels, the air guide channels are communicated with the inflation connecting tube, the outer side of the bridge housing body is threadedly equipped with an inflation nozzle, and the inflation nozzle is communicated with the air guide channels.

8. The drive axle assembly according to claim 4, characterized in that: A mounting flange is integrally formed on one side of the main reducer housing close to the bridge housing body. The mounting flange is provided with a plurality of evenly distributed connecting through holes, and the plurality of connecting through holes are arranged corresponding to the mounting bolt holes.

9. The drive axle assembly according to claim 8, characterized in that: The assembly flange is fixedly assembled with a plurality of evenly distributed assembly bolts, and the plurality of assembly bolts are all arranged through the connecting through holes, the assembly avoidance holes and the assembly bolt holes.

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