CN213138396U - Drive axle housing assembly and automobile - Google Patents

Abstract

The utility model provides a drive axle housing assembly and car, drive axle housing assembly includes: the axle housing comprises an axle housing body (1), wherein the axle housing body (1) is of an integrally formed structure, and the axle housing body (1) comprises an axle package (101) and two axle tubes (102) which symmetrically extend outwards from two ends of the axle package (101); the semi-shaft sleeve flange (5) is connected with one end, far away from the bridge package (101), of the shaft tube (102) in a matched mode; the component mounting bracket is arranged on the axle housing body (1). Above-mentioned scheme, transaxle axle housing assembly has sufficient intensity and rigidity, can guarantee that the vehicle when traveling under the extreme condition, avoids axle housing body and each spare part installing support to produce great deformation or damage to avoid the welding seam fracture and the problem of the oil impregnate that leads to, simple structure, manufacturability are good, light in weight and with low costs.

Description

Drive axle housing assembly and automobile

Technical Field

The utility model relates to an automobile field, in particular to transaxle axle housing assembly and car.

Background

The axle housing of the automobile drive axle is used for mounting parts such as a main speed reducer, a half shaft and the like, is also used for supporting the weight of an automobile, and transmits various acting forces and moments transmitted to wheels from the ground to members of a frame and an automobile body through a suspension system.

The drive axle housing among the prior art can not satisfy the installation and the operation requirement of single trailing arm spiral spring formula non-independent suspension system, has the welding seam and easily ftractures and leads to the problem of oil impregnate, consequently, needs design a drive axle housing with the non-independent suspension of cooperation single trailing arm spiral spring formula.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a drive axle housing assembly and car to solve the welding seam on the drive axle housing and easily split and lead to the problem of oil impregnate.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the foundation the utility model discloses an aspect provides a transaxle axle housing assembly, include:

the axle housing comprises an axle housing body, wherein the axle housing body is of an integrally formed structure and comprises an axle package and two axle tubes symmetrically extending outwards from two ends of the axle package;

the semi-shaft sleeve flange is connected with one end, far away from the bridge package, of the shaft tube in a matching manner;

and the part mounting bracket is arranged on the axle housing body.

Optionally, the method further comprises:

the welding is in main on the bridging bag subtracts the backup pad, main subtract the backup pad and be a ring platelike structure, evenly be provided with a plurality of screw holes along axial direction on the main backup pad that subtracts.

Optionally, the component mounting bracket includes a stabilizer bar bracket, a left side damper bracket, a right side damper bracket, a single trailing arm bracket, a lateral thrust rod bracket, and a coil spring seat bracket.

Optionally, the stabilizer bar bracket is disposed on the axle tube adjacent an outer wall of the bridge package.

Optionally, the left side shock absorber support and the right side shock absorber support are both provided with bending portions, and the left side shock absorber support and the right side shock absorber support are symmetrically arranged on two sides of the axle package and welded on the outer wall, close to the axle sleeve flange, of the axle tube.

Optionally, an arc-shaped groove is formed in the single trailing arm bracket, the single trailing arm bracket is bridged on the axle tube through the arc-shaped groove, and the arc-shaped groove is attached to and connected with the outer wall of the axle tube;

wherein the single trailing arm bracket is positioned between the axle half sleeve flange and the stabilizer bar bracket.

Optionally, the lateral thrust rod bracket is disposed on the single trailing arm bracket, and the coil spring seat bracket is connected to the single trailing arm bracket and the outer wall of the axle tube, respectively.

Optionally, the axle tube is a hollow tubular structure, and one end of the flange plate of the half axle sleeve is inserted into the end of the axle tube far away from the axle pack.

Optionally, the bridge package is not the same wall thickness as the axle tube.

Optionally, the wall thickness of the bridge package is 3 mm; the wall thickness of the shaft tube is 5.5 mm.

According to another aspect of the present invention, there is provided an automobile including the axle housing assembly as described above.

The utility model has the advantages that:

according to the scheme, the drive axle housing assembly has sufficient strength and rigidity, normal meshing of the main reducer gear can be guaranteed when a vehicle is transmitted with large torque, and the problem that oil leakage is caused due to welding seam cracking is avoided as the axle housing body and the mounting supports of all parts are prevented from being deformed or damaged greatly when the vehicle runs under the limit working condition; in addition, on the premise of meeting the requirements of various installation and use functions, the novel LED lamp also has the advantages of simple structure, good manufacturability, light weight, low cost and the like.

Drawings

Fig. 1 is a schematic structural diagram of a drive axle housing assembly according to an embodiment of the present invention;

fig. 2 shows a schematic structural view of an axle housing body provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a main support plate of the present invention;

fig. 4 is a schematic view illustrating a welding structure of a main support plate of the present invention;

fig. 5 is a schematic view showing a welding structure of a flange plate of a half shaft sleeve, an oil filling plug seat, an oil discharging plug seat, a vent plug seat and an axle housing body provided by the embodiment of the utility model;

fig. 6 is a schematic view showing a flange structure of a half shaft sleeve according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a vent plug seat according to an embodiment of the present invention;

fig. 8 is a schematic structural view of an oil drain plug seat provided in an embodiment of the present invention;

fig. 9 is a schematic structural view of a fuel filler plug seat according to an embodiment of the present invention;

fig. 10 is a schematic view illustrating a welding structure of a stabilizer bar and a shock absorber bracket to an axle housing body according to an embodiment of the present invention;

fig. 11 shows a second schematic view of a welding structure of the stabilizer bar, the shock absorber bracket and the axle housing body according to the embodiment of the present invention;

fig. 12 is a schematic structural view of a right shock absorber support provided in an embodiment of the present invention;

fig. 13 is a schematic structural view of a left shock absorber support according to an embodiment of the present invention;

fig. 14 is a schematic structural view of a lateral thrust rod support according to an embodiment of the present invention;

fig. 15 is a schematic view of a stabilizer bar bracket according to an embodiment of the present invention;

fig. 16 is a schematic structural view of a coil spring seat support according to an embodiment of the present invention;

fig. 17 is a schematic structural view of a single trailing arm bracket according to an embodiment of the present invention;

fig. 18 shows one of the welding structural diagrams of the single trailing arm bracket, the coil spring seat bracket, the lateral thrust rod bracket and the axle housing body provided in the embodiment of the present invention;

fig. 19 is a second schematic view of a welding structure of the single trailing arm bracket, the coil spring seat bracket, the lateral thrust rod bracket and the axle housing body according to the embodiment of the present invention;

fig. 20 is a third schematic view showing a welding structure of the single trailing arm bracket, the coil spring seat bracket, the lateral thrust rod bracket and the axle housing body according to the embodiment of the present invention;

fig. 21 shows the fourth schematic view of the welding structure of the single trailing arm bracket, the coil spring seat bracket, the lateral thrust rod bracket and the axle housing body provided in the embodiment of the present invention.

Description of reference numerals:

1-an axle housing body; 101-bridge package; 102-an axle tube; 2-a coil spring seat support; 3-stabilizer bar support; 4-single trailing arm support; 5-flange of half shaft sleeve; 6-ventilating plug seat; 7-a filler plug seat; 8-lateral thrust rod support; 9-left shock absorber support; 10-right side shock absorber support; 11-oil drain plug seat; 12-main reduction support plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses welding seam on to the transaxle axle housing is easily cracked and is leaded to the problem of oil impregnate, provides a transaxle axle housing assembly and car.

As shown in fig. 1, one of the embodiments of the present invention provides a drive axle housing assembly, including:

the axle housing comprises an axle housing body 1, wherein the axle housing body 1 is of an integrally formed structure, a hydraulic expansion forming process can be adopted, and as shown in fig. 2, the axle housing body 1 comprises an axle package 101 and two axle tubes 102 which symmetrically extend outwards from two ends of the axle package 101;

the semi-shaft sleeve flange 5 is connected with one end, far away from the bridge package 101, of the shaft tube 102 in a matched mode;

the component mounting bracket is arranged on the axle housing body 1.

It should be noted that the traditional axle housing body 1 has a welding seam, so that the risk of oil leakage due to the cracking of the welding seam exists, and the axle housing body 1 of the present application adopts a hydraulic expansion type axle housing structure, i.e. the axle housing body can be integrally formed by a hydraulic expansion type forming process, so that no welding seam exists in the axle housing body 1, the welding cost is reduced, and the risk of oil leakage due to the cracking of the welding seam of the axle housing body 1 can be avoided; compare in traditional steel sheet punching press axle housing or syllogic axle housing, promoted fatigue strength and rigidity, reduced the risk of axle housing body 1 fracture, improved production efficiency.

Optionally, the shaft tube 102 is a hollow tubular structure; the utility model discloses an optional embodiment, the structure of half axle sleeve ring flange 5 is shown in fig. 6, wherein one end of half axle sleeve ring flange 5 is inserted and is located central siphon 102 is kept away from the one end of bridgeware 101, half axle sleeve ring flange 5 with central siphon 102 accessible welding or cast mode are even as an organic whole.

Optionally, the method further comprises:

the main support plate 12 welded to the bridge package 101 is a circular plate-shaped structure, as shown in fig. 3, and a plurality of threaded holes are uniformly formed in the main support plate 12 in the axial direction.

It should be noted that, in the conventional structure, the number of welding seams when the main support plate 12 is welded on the bridge package 101 is 4, and welding needs to be performed for 4 times, so that the requirement on the welding process is high, the welding cost is high, the efficiency is low, and if the welding seams are not overlapped well, the risk of oil leakage exists. The main reducing support plate 12 of the application adopts a circular ring plate-shaped structure, and compared with the traditional main reducing support plate 12, the main reducing support plate has small volume and light weight; as shown in FIG. 4, the welding seam with the axle housing body 1 is only one annular welding seam, so that the welding difficulty is greatly reduced.

In addition, the main reducing support plate 12 can be welded on the axle housing body 1 through carbon dioxide arc welding, and a threaded hole in the main reducing support plate 12 can be used for fixing the main speed reducer assembly; the drive axle housing assembly has sufficient strength and rigidity, and can ensure that the meshing of the main reducer gear is normal when a large torque is transmitted by a vehicle.

Optionally, the component mounting bracket includes a stabilizer bar bracket 3, a left side damper bracket 9, a right side damper bracket 10, a single trailing arm bracket 4, a lateral thrust bar bracket 8, and a coil spring seat bracket 2.

According to the requirement of hard points of the whole vehicle head office and the structural sizes of a transverse stabilizer bar and a shock absorber of a suspension system, a transverse stabilizer bar bracket 3 and a shock absorber bracket can be respectively designed, and the transverse stabilizer bar bracket 3 and the shock absorber bracket can be arranged on an axle housing body 1 in a welding mode; specifically, the welding can be performed by carbon dioxide arc welding.

Optionally, stabilizer bar support 3 sets up central siphon 102 is close to on the outer wall of bridgebag 101, in an optional embodiment of the present invention, stabilizer bar support 3's structure is as shown in fig. 15, and stabilizer bar support 3 includes a tetragonal installation panel and sets up respectively the side board on two relative sides of installation panel, be provided with the mounting hole on the installation panel.

As shown in fig. 10-11, in an alternative embodiment of the present invention, two stabilizer bar brackets 3 are respectively disposed on two sides of the axle bag 101, and are symmetrically arranged with respect to the center of the vehicle after being installed in place, and the stabilizer bar brackets 3 on two sides are universal parts.

In addition, the shock absorber supports can also be symmetrically arranged relative to the center of the automobile, and the shock absorber supports adopted on the two sides are symmetrical parts; that is, the shock absorber supports may include a left side shock absorber support 9 and a right side shock absorber support 10, the left side shock absorber support 9 and the right side shock absorber support 10 are provided with bent portions, but the bending directions of the bent portions are different, as shown in fig. 12 to 13, the left side shock absorber support 9 and the right side shock absorber support 10 are symmetrically arranged at both sides of the axle package 101 and are welded on the outer wall of the axle tube 102 near the half axle tube flange 5.

The embodiment of the utility model provides a, according to CAE (Computer Aided Engineering) intensity analysis result, improved the optimization to stabilizer bar support 3 and bumper shock absorber support's structure. The shock absorber support is provided with a reinforcing plate, and when the shock absorber support is welded on the shaft tube 102, the reinforcing plate is attached to and connected with the outer wall of the shaft tube 102; can increase bumper shock absorber support body intensity through increasing the reinforcing plate, and then increase bumper shock absorber support welding strength through the reinforcing plate with axle housing body 1's welding seam to satisfy the use strength requirement.

It can be understood that on the premise of meeting the use function and the strength, the design structure of each part mounting bracket can be simplified as much as possible, the part mounting brackets on the left side and the right side are designed into a universal structure as much as possible, and therefore the maximum universality of the parts can be guaranteed, the types of dies are reduced, and the production cost is reduced.

As shown in fig. 17, optionally, an arc-shaped groove is formed in the single trailing arm bracket 4, through which the single trailing arm bracket 4 bridges over the axle tube 102, and the arc-shaped groove is attached to the outer wall of the axle tube 102; wherein the single trailing arm bracket 4 is located between the axle sleeve flange 5 and the stabilizer bar bracket 3, as shown in fig. 1.

It should be noted that the single trailing arm bracket 4 is overlapped on the axle housing body 1, and can be welded with the axle housing body 1 through carbon dioxide arc welding. In transaxle axle housing assembly, can set up 2 single trailing arm supports 4, arrange symmetrically the axle package 101 both sides, 2 single trailing arm supports 4 can be designed into general parts, install the relative car centrosymmetry behind the target in place.

Optionally, the lateral thrust bar support 8 is provided on the single trailing arm support 4; in an optional embodiment of the present invention, the structure of the lateral thrust rod bracket 8 is as shown in fig. 14, the lateral thrust rod bracket 8 is a U-shaped bent structure, the bent structure is formed with three mutually connected side surfaces, wherein two parallel opposite side surfaces are provided with mutually matched mounting through holes; the transverse thrust rod bracket 8 can be vertically connected to one of the outer wall surfaces of the single trailing arm bracket 4 and can be used for improving the bearing capacity of a connecting part; the coil spring seat bracket 2 is respectively connected with the single trailing arm bracket 4 and the outer wall of the axle tube 102.

It should be noted that, according to the present application, the single trailing arm bracket 4, the coil spring seat bracket 2, and the lateral thrust rod bracket 8 may be designed according to the hard spot requirement of the entire vehicle head office and the structural dimensions of the single trailing arm, the coil spring, and the lateral thrust rod of the suspension system.

In the specific implementation process, according to the general arrangement requirement, the problem that the three parts of the single trailing arm, the spiral spring and the transverse thrust rod of the suspension system are close to the installation hard point of the axle housing assembly of the drive axle and are compact in installation and arrangement sometimes can be caused, so that the three supports can not be independently welded with the axle housing body 1. Therefore, in the design, the three component mounting brackets need to be combined and welded, and then are welded with the axle housing body 1 after the combination and welding; in addition, welding manufacturability, suspension component assembly manufacturability and the like should be considered.

Specifically, one part of the coil spring seat support 2 can be directly lapped on the axle housing body 1, and the other part of the coil spring seat support can be lapped on the single trailing arm support 4 and welded through carbon dioxide arc welding; the lateral thrust rod bracket 8 may not be welded in direct contact with the axle housing body 1, but welded to the single trailing arm bracket 4, indirectly achieving connection with the axle housing body 1.

According to the design requirement, as shown in fig. 16, the coil spring seat support 2 has a certain inward inclination angle, and in order to ensure that the coil spring seat supports 2 on both sides are used commonly during the design, the coil spring seat support 2 on the right side is horizontally rotated by 180 ° around the axis, and then is placed at the right side design position, that is, the front part of the coil spring seat support 2 on the left side is the rear part of the coil spring seat support 2 on the right side, and the rear part of the coil spring seat support 2 on the left side is the front part of the coil spring seat support 2 on the right side, as shown in fig. 18-21.

The utility model discloses an in one of them embodiment, the structure of transaxle axle housing assembly is as shown in figure 1, including axle housing body 1, main bracing plate 12, each spare part installing support, half axle sleeve ring flange, refuel chock 7, oil drain chock 11, the chock 6 etc. of ventilating. According to the use function and the structure requirement, 2 single trailing arm supports 4, 2 spiral spring seat supports 2, 2 shock absorber supports (namely 1 left shock absorber support 9 and 1 right shock absorber support 10), 2 stabilizer bar supports 3 and 2 half shaft sleeve pipe flanges can be arranged, and the rest parts can be respectively arranged to be 1.

As shown in fig. 5, drive axle housing assembly still includes and refuels stopper 7, oil drain stopper seat 11 and ventilates stopper seat 6 set up respectively on the three different sides of axle package 101, these spare parts can be based on its service function and assembly requirement, carry out design improvement optimization on the basis of traditional axle housing spare part to weld through carbon dioxide arc welding with axle housing body 1 and carry out the girth welding, satisfy its service function and performance.

In the embodiment of the present invention, the structure of the vent plug seat 6 is shown in fig. 7; the structure of the oil drain plug seat 11 is shown in fig. 8; the structure of the filler plug holder 7 is shown in fig. 9.

Optionally, the wall thickness of the bridge package 101 is not the same as the wall thickness of the shaft tube 102. Optionally, the wall thickness of the bridge package 101 is 3 mm; the wall thickness of the shaft tube 102 is 5.5 mm.

As shown in FIG. 2, the axle housing body 1 can be formed by a hydraulic expansion forming process by using a seamless steel pipe Q345B as a raw material, and the material utilization rate is high. Compare with traditional transaxle axle housing, can realize the design of wall thickness that varies, by axle housing middle part bridging 101 to both ends central siphon 102, the wall thickness is gradually changed to 5.5mm by 3mm, and this thickness can be according to different axle loads, refers to CAE analysis result, bench test result etc. and designs the adjustment. Compared with the traditional axle housing, the axle housing body 1 is designed with unequal wall thickness, so that the axle housing of the drive axle is light in weight, low in production cost and low in part cost under the conditions of equal strength and rigidity.

This application provides a transaxle axle housing of single longitudinal wall spiral spring formula non-independent suspension system according to the concrete spare part structure of single longitudinal wall spiral spring formula non-independent suspension system, connect assembly requirement, installation hard point requirement and whole car correlation performance index requirement etc. can satisfy the installation and the operation requirement of single longitudinal wall spiral spring formula non-independent suspension system, has richened the structural type of the transaxle axle housing of cooperation single longitudinal wall spiral spring formula non-independent suspension system.

The drive axle housing assembly provided by the embodiment of the utility model has enough strength and rigidity, can ensure that the meshing of the main reducer gear is normal when the vehicle is transmitted with large torque, and can prevent the axle housing body and the mounting bracket of each part from generating large deformation or damage when the vehicle runs under the limit working condition, thereby avoiding the problem of oil leakage caused by the cracking of welding seams; in addition, on the premise of meeting the requirements of various installation and use functions, the novel LED lamp also has the advantages of simple structure, good manufacturability, light weight, low cost and the like.

The embodiment of the utility model provides a still provide an automobile, including foretell transaxle axle housing assembly.

The foregoing is directed to the preferred embodiments of the present invention, and it will be understood by those skilled in the art that various changes and modifications may be made without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.

Claims (11)

1. A transaxle axle housing assembly, comprising:

the axle housing comprises an axle housing body (1), wherein the axle housing body (1) is of an integrally formed structure, and the axle housing body (1) comprises an axle package (101) and two axle tubes (102) which symmetrically extend outwards from two ends of the axle package (101);

the semi-shaft sleeve flange (5) is connected with one end, far away from the bridge package (101), of the shaft tube (102) in a matched mode;

the component mounting bracket is arranged on the axle housing body (1).

2. The drive axle housing assembly of claim 1 further comprising:

the welding is in main subtract backup pad (12) on bridging bag (101), main subtract backup pad (12) be a ring platelike structure, evenly be provided with a plurality of screw holes along axial direction on main subtract backup pad (12).

3. The drive axle housing assembly of claim 1 wherein the component mounting brackets include a stabilizer bar bracket (3), a left side damper bracket (9), a right side damper bracket (10), a single trailing arm bracket (4), a lateral thrust bar bracket (8) and a coil spring seat bracket (2).

4. A transaxle case assembly according to claim 3 wherein the stabilizer bar bracket (3) is provided on the outer wall of the axle tube (102) near the axle package (101).

5. The drive axle housing assembly according to claim 3, characterized in that the left side shock absorber support (9) and the right side shock absorber support (10) are provided with bent portions, and the left side shock absorber support (9) and the right side shock absorber support (10) are symmetrically arranged on two sides of the axle package (101) and welded on the outer wall of the axle tube (102) close to the axle half tube flange (5).

6. The drive axle housing assembly as claimed in claim 3, wherein the single trailing arm bracket (4) is provided with an arc-shaped groove, the single trailing arm bracket (4) is bridged on the axle tube (102) through the arc-shaped groove, and the arc-shaped groove is in fit connection with the outer wall of the axle tube (102);

the single-trailing-arm support (4) is located between the half-shaft sleeve flange (5) and the transverse stabilizer bar support (3).

7. The transaxle case assembly of claim 3 wherein the lateral thrust rod bracket (8) is disposed on the single trailing arm bracket (4), and the coil spring seat bracket (2) is connected to the single trailing arm bracket (4) and the outer wall of the axle tube (102), respectively.

8. The drive axle housing assembly of claim 1 wherein the axle tube (102) is a hollow tubular structure, and one end of the axle tube flange (5) is inserted into the end of the axle tube (102) away from the axle package (101).

9. The transaxle axle housing assembly of claim 1 wherein the wall thickness of the axle package (101) and the axle tube (102) are not the same.

10. The drive axle housing assembly of claim 9 wherein the wall thickness of the axle package (101) is 3 mm; the wall thickness of the shaft tube (102) is 5.5 mm.

11. An automotive vehicle comprising a transaxle case assembly of any one of claims 1 to 10.

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