Lightweight heavy truck drive axle housing assembly

Abstract

The utility model discloses a light-weight heavy truck drive axle housing assembly, which relates to the technical field of automobile accessories and comprises an axle housing unit, connecting units fixedly connected to two ends of the axle housing unit, shaft head units respectively mounted at one ends of the two connecting units, and positioning and clamping units arranged in the shaft head units, the positioning and clamping unit comprises abutting columns movably arranged in the upper end and the lower end of the shaft head unit and movable clamping columns movably arranged on the upper inner surface and the lower inner surface of the shaft head unit correspondingly and used for positioning and clamping. The positioning clamping unit is adopted, connection between the axle housing middle section and the connecting shaft is improved in a positioning clamping mode, compared with a traditional bolt fastening mode, connection is more stable, the connection effect between the axle housing middle section and the connecting shaft is improved, later-stage disassembly and maintenance are facilitated, the structure is simple, operation is easy, time and labor are saved, and good practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a lightweight heavy-duty truck drive axle housing assembly. Background Art

[0002] Automobile energy conservation has become a key research topic in the development of the automobile industry. Studies have shown that reducing the weight of the automobile itself is one of the effective measures to improve automobile fuel economy and reduce automobile CO2 emissions, especially for the heavy truck industry. At present, the drive axle housing assembly usually consists of the main section of the housing and the middle section of the housing at both ends and the shaft head, and the shaft head is equipped with a connecting flange or a bracket plate connector.

[0003] The existing drive axle housing is connected by multiple bolts when the shaft head and the middle section of the housing are butt-jointed and installed. This connection method not only causes the bolts to wear and affect the connection effect over a long period of time, but also makes the later disassembly and assembly more troublesome and time-consuming. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a lightweight heavy-duty truck drive axle housing assembly, which can effectively solve the problem that the existing drive axle housing connection method between the shaft head and the middle section of the housing not only causes bolt wear over a long period of time, affecting the connection effect, but also makes later disassembly and assembly more troublesome, time-consuming and labor-intensive.

[0005] The technical solution provided by the utility model is: a lightweight heavy-duty truck drive axle housing assembly, comprising an axle housing unit, a connecting unit fixedly connected to both ends of the axle housing unit, and an axle head unit respectively installed at one end of the two connecting units, wherein the special feature is that a positioning clamping unit is arranged inside the axle head unit;

[0006] The positioning clamping unit comprises a clamping column movably arranged in the shaft head unit, and movable clamping columns for positioning clamping which are movably arranged on the upper and lower inner surfaces of the shaft head unit respectively.

[0007] Furthermore, the bridge housing unit includes a bridge housing main section and a bridge housing middle section respectively fixedly connected to both sides of the bridge housing main section.

[0008] Furthermore, the connecting unit includes a connecting piece fixedly connected to one end of the middle section of the bridge housing, a positioning groove opened at the center of one end of the connecting piece, a positioning rod fixedly connected to one side of the connecting piece, and a positioning card hole opened on the outer surface of the positioning rod.

[0009] Further, the shaft head unit includes a connecting shaft installed in a positioning groove at one end of a connecting member, a collar sleeved on the outer surface of the connecting shaft, insertion holes respectively opened on the inner sides of the upper and lower ends of the collar, movable cavities respectively opened inside the upper and lower ends of the collar, and inner sliding grooves opened on the opposite inner wall surfaces of the movable cavities.

[0010] Further, the positioning and clamping unit further includes an adjusting screw rod inserted through the collar, a threaded block threadedly connected to the outer surface of the adjusting screw rod, a connecting plate fixedly connected to one side of the threaded block, a limiting plate sleeved on the outer surface of the movable clamping post, and a return spring sleeved on the outer surface of the movable clamping post.

[0011] Further, one side of the connecting plate is fixedly connected to one end of the abutting post, the limiting plate is movably arranged inside the inner sliding groove, and the return spring is arranged between the movable cavity and the limiting plate; the outer diameter of the movable clamping post is adapted to the inner diameter of the positioning clamping hole.

[0012] Further, the outer diameter of one end of the connecting shaft is adapted to the inner diameter of the positioning groove, the outer diameter of the positioning rod is adapted to the inner diameter of the insertion hole, and the inner diameter of the collar is adapted to the outer diameter of one end of the connecting member.

[0013] Further, the outer diameter of one end of the connecting shaft is adapted to the inner diameter of the positioning groove, the outer diameter of the positioning rod is adapted to the inner diameter of the insertion hole, and the inner diameter of the collar is adapted to the outer diameter of one end of the connecting member.

[0014] The utility model has the following beneficial effects:

[0015] 1. By adopting the positioning and clamping unit, the connection between the middle section of the axle housing and the connecting shaft is improved through the positioning and clamping method. Compared with the traditional bolt fastening method, the connection is more stable, the connection effect between the two is improved, and it is convenient for later disassembly and maintenance; 2. The structure is simple, the operation is simple, time and labor are saved, and it has good practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the utility model;

[0017] Figure 2 is Figure 1 an enlarged structural diagram of part A of

[0018] Figure 3 is Figure 2 an enlarged structural diagram of part B of

[0019] In the figure: 100, axle housing unit; 101, main section of the axle housing; 102, middle section of the axle housing; 200, connecting unit; 201, connecting piece; 202, positioning groove; 203, positioning rod; 204, positioning card hole; 300, axle head unit; 301, connecting shaft; 302, collar; 303, insertion hole; 304, movable cavity; 305, inner sliding groove; 400, positioning and clamping unit; 401, adjusting screw rod; 402, threaded block; 403, connecting plate; 404, pressing column; 405, movable clamping column; 406, limiting plate; 407, return spring. Detailed implementation mode

[0020] For better understanding and implementation, the present utility model will be described in detail below with reference to the accompanying drawings.

[0021] As Figure 1 、 2 、shown in Figure 3, a lightweight heavy-duty truck drive axle housing assembly includes an axle housing unit 100, a connecting unit 200 fixedly connected to both ends of the axle housing unit 100, and axle head units 300 respectively installed at one end of the two connecting units 200, and further includes a positioning and clamping unit 400 arranged inside the axle head unit 300;

[0022] The axle housing unit 100 includes a main section 101 of the axle housing, and middle sections 102 of the axle housing fixedly connected to both sides of the main section 101 of the axle housing respectively;

[0023] The connecting unit 200 includes a connecting piece 201 fixedly connected to one end of the middle section 102 of the axle housing, a positioning groove 202 opened at the center of one end of the connecting piece 201, a positioning rod 203 fixedly connected to one side of the connecting piece 201, and a positioning card hole 204 opened on the outer surface of the positioning rod 203;

[0024] The axle head unit 300 includes a connecting shaft 301 installed in the positioning groove 202 at one end of the connecting piece 201, a collar 302 sleeved on the outer surface of the connecting shaft 301, insertion holes 303 respectively opened on both sides of the upper and lower ends of the collar 302, movable cavities 304 respectively opened inside the upper and lower ends of the collar 302, and inner sliding grooves 305 opened on the opposite inner wall surfaces of the movable cavities 304;

[0025] Wherein, the outer diameter dimension of one end of the connecting shaft 301 is adapted to the inner diameter dimension of the positioning groove 202, the outer diameter dimension of the positioning rod 203 is adapted to the inner diameter dimension of the insertion hole 303, and the inner diameter dimension of the collar 302 is adapted to the outer diameter dimension of one end of the connecting piece 201;

[0026] The positioning and clamping unit 400 includes a pressing column 404 movably arranged inside the shaft head unit 300, and movable clamping columns 405 for positioning and clamping respectively movably arranged on the upper and lower inner surfaces of the shaft head unit 300; the positioning and clamping unit 400 further includes an adjusting screw rod 401 inserted into the collar 302, a threaded block 402 threadedly connected to the outer surface of the adjusting screw rod 401, a connecting plate 403 fixedly connected to one side of the threaded block 402, a limiting plate 406 sleeved on the outer surface of the movable clamping column 405, and a return spring 407 sleeved on the outer surface of the movable clamping column 405; one side of the connecting plate 403 is fixedly connected to one end of the pressing column 404, the limiting plate 406 is movably arranged inside the inner sliding groove 305, the return spring 407 is arranged between the movable cavity 304 and the limiting plate 406, and the outer diameter of the movable clamping column 405 is adapted to the inner diameter of the positioning clamping hole 204.

[0027] For the working principle of a lightweight heavy truck drive axle housing assembly of the present utility model: during installation, one end of the connecting shaft 301 is inserted into the positioning groove 202 of the connecting piece 201, and the two insertion holes 303 on the collar 302 are aligned with and inserted into the two positioning rods 203 at one end of the connecting piece 201, and one end of the connecting shaft 301 is in tight contact with the inner wall of the positioning groove 202. Then, by rotating the adjusting screw rod 401, the rotation of the adjusting screw rod 401 drives the threaded block 402 to move to one side on its outer surface. The movement of the threaded block 402 drives the connecting plate 403 to move accordingly. The movement of the connecting plate 403 drives the pressing column 404 to move, so that the inclined surface at one end of the pressing column 404 contacts the inclined surface at one end of the movable clamping column 405. As the pressing column 404 continues to move, the movable clamping column 405 is extruded and moved through the contact of the inclined surfaces. The movement of the movable clamping column 405 drives the limiting plate 406 to move inside the inner sliding groove 305 and compresses the return spring 407. The movement of the movable clamping column 405 enters the positioning clamping hole 204 of the positioning rod 203, thus completing the positioning and clamping installation of the connecting piece 201 and the connecting shaft 301. On the contrary, when disassembly is required, the adjusting screw rod 401 is rotated in the reverse direction, and the pressing column 404 returns to its original state. After the movable clamping column 405 loses the extrusion force, the return spring 405 elastically returns and bounces the movable clamping column 405 away from the positioning clamping hole 204 through the limiting plate 406, and the disassembly between the connecting shaft 301 and the connecting piece 201 can be completed. This structure improves the connection between the middle section 102 of the axle housing and the connecting shaft 301 through the positioning and clamping method. Compared with the traditional bolt fastening method, the connection is more stable, the connection effect between the two is improved, and it is convenient for later disassembly and maintenance. The structure is simple, the operation is simple, time-saving and labor-saving, and it has good practicability.

[0028] It should be understood that the technical features not elaborated in this specification all belong to the prior art. Although the embodiments of the utility model patent have been described above in conjunction with the accompanying drawings, the utility model is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Those of ordinary skill in the art can, under the inspiration of the utility model, make more forms without departing from the gist of the utility model and the scope protected by the claims. All of these fall within the protection scope of the utility model.

Claims

1. A lightweight heavy-duty truck drive axle housing assembly, comprising a housing unit (100), a connecting unit (200) fixedly connected to both ends of the housing unit (100), and an axle head unit (300) respectively mounted on one end of the two connecting units (200), characterized in that: A positioning clamping unit (400) is disposed inside the shaft head unit (300); The positioning clamping unit (400) comprises a clamping column (404) movably arranged in the shaft head unit (300), and movable clamping columns (405) for positioning clamping and movably arranged on the upper and lower inner surfaces of the shaft head unit (300), respectively.

2. The lightweight heavy-duty truck drive axle housing assembly according to claim 1 is characterized in that: The axle housing unit (100) comprises an axle housing main section (101) and an axle housing middle section (102) respectively fixedly connected to both sides of the axle housing main section (101).

3. The lightweight heavy-duty truck drive axle housing assembly according to claim 1 is characterized in that: The connection unit (200) comprises a connection piece (201) fixedly connected to one end of the middle section (102) of the bridge housing, a positioning groove (202) provided at the center of one end of the connection piece (201), a positioning rod (203) fixedly connected to one side of the connection piece (201), and a positioning clamping hole (204) provided on the outer surface of the positioning rod (203).

4. The lightweight heavy-duty truck drive axle housing assembly according to claim 1 is characterized in that: The shaft head unit (300) comprises a connecting shaft (301) installed in a positioning groove (202) at one end of a connecting member (201), a collar (302) sleeved on the outer surface of the connecting shaft (301), insertion holes (303) respectively provided on the inner sides of the upper and lower ends of the collar (302), movable cavities (304) respectively provided inside the upper and lower ends of the collar (302), and an inner sliding groove (305) provided on the inner wall surface opposite to the movable cavity (304).

5. The lightweight heavy-duty truck drive axle housing assembly according to claim 1 is characterized in that: The positioning clamping unit (400) further comprises an adjusting screw (401) inserted into the collar (302), a threaded block (402) threadedly connected to the outer surface of the adjusting screw (401), a connecting plate (403) fixedly connected to one side of the threaded block (402), a limiting plate (406) sleeved on the outer surface of the movable clamping column (405), and a return spring (407) sleeved on the outer surface of the movable clamping column (405).

6. The lightweight heavy-duty truck drive axle housing assembly according to claim 5, characterized in that: One side of the connecting plate (403) is fixedly connected to one end of the clamping column (404); the limit plate (406) is movably arranged inside the inner slide groove (305); the return spring (407) is arranged between the movable cavity (304) and the limit plate (406); and the outer diameter of the movable clamping column (405) is adapted to the inner diameter of the positioning clamping hole (204).

7. The lightweight heavy-duty truck drive axle housing assembly according to claim 3 is characterized in that: The outer diameter of the positioning rod (203) is matched to the inner diameter of the insertion hole (303).

8. The lightweight heavy-duty truck drive axle housing assembly according to claim 4, characterized in that: The outer diameter of one end of the connecting shaft (301) matches the inner diameter of the positioning groove (202); and the inner diameter of the collar (302) matches the outer diameter of one end of the connecting piece (201).

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