Novel drive axle main speed reducer shell assembly

Abstract

The utility model discloses a novel drive axle main speed reducer shell assembly, which belongs to the technical field of automobile drive axles and comprises a protective shell, a conical cover is mounted on the outer side of the protective shell, and flange plates are fixedly mounted at opposite ends of the protective shell and the conical cover. A telescopic piece is installed on the flange plate, a connecting column is installed on the telescopic piece, and a pressing base is installed on the outer side of the connecting column. According to the technical scheme, by arranging the telescopic piece and pulling the connecting column, the extending column slides on the inner side of the movable sleeve, so that the pressing base is separated from the flange plate, the flange plate on the conical cover is in butt joint with the flange plate on the protective shell, after butt joint, under the cooperation of the spring, the connecting column is reset, the fastening sleeve is rotated, and the flange plate on the conical cover and the flange plate on the protective shell are fixed. Under the cooperation of the threaded groove, the pressing seat moves downwards, so that the locking column on the pressing seat, the locking hole in the flange plate and the butt joint groove are in butt joint and locked, and the protective shell and the conical cover can be conveniently disassembled and assembled in the overhauling process.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile drive axles, in particular to a novel drive axle main reducer housing assembly. Background Art

[0002] The drive axle is one of the core key assemblies of heavy-duty trucks. It bears the full spring load of the vehicle and the plumb force, longitudinal force, lateral force and torque given by the ground through the wheels and the frame through the suspension, as well as the impact load. The drive axle also transmits the maximum torque in the transmission system, and the bridge housing also bears the reaction torque. The structural type and design parameters of the automobile drive axle not only have an important impact on the reliability and durability of the vehicle, but also have a direct impact on the vehicle's driving performance such as power, economy, smoothness, passability, maneuverability and handling stability.

[0003] With the continuous advancement of automobile technology, the distributed structure of automobile parts has gradually evolved towards integration and lightweight, becoming a major trend in the development of automobile technology. The main reducer, as the core assembly of the drive axle, mainly includes the main reducer housing, differential, spiral bevel gear, bearing, bearing cover, differential lock assembly and other components. Among them, the main reducer housing structure design has a great influence on the strength and stiffness of the main reducer transmission system. The existing housing has a complex design structure, and the assembly steps with the equipment are cumbersome during use; and when the main reducer inside the housing is damaged, it is extremely inconvenient for the staff to disassemble the housing, which increases the workload of the staff. Summary of the invention

[0004] In order to solve the deficiencies in the prior art, the utility model provides a new drive axle main reducer housing assembly, which has the advantages of being able to easily assemble its protective outer shell with a conical cover, thereby solving the problem that the design structure of the housing is complex and the assembly steps with the equipment are troublesome during use; and when the main reducer inside the housing is damaged, it is extremely inconvenient for the staff to disassemble the housing, thereby increasing the workload of the staff.

[0005] To this end, the technical solution of the utility model is: a new type of drive axle main reducer housing assembly, including a protective shell, characterized in that a conical cover is installed on the outer side of the protective shell, and a flange is fixedly installed on the opposite end of the protective shell to the conical cover.

[0006] A telescopic part is installed on the flange of the protective shell, a connecting column is installed on the telescopic part, a pressure seat that can abut against the flange on the conical cover is installed on the other side of the connecting column, a fastening sleeve is installed on the side of the pressure seat away from the telescopic part, and a locking column is fixedly connected to the side of the pressure seat close to the telescopic part.

[0007] Preferably, a bushing tube is installed at one end of the conical cover away from the protective shell.

[0008] Preferably, locking holes and docking grooves are provided on the surface of the flange, and there are several locking holes and docking grooves, and the specifications of the several locking holes and docking grooves are the same.

[0009] Preferably, the telescopic member comprises a movable sleeve fixedly mounted on the outer side of the flange of the protective housing, an extension column is movably connected to the inner side of the movable sleeve, and a spring is provided between the extension column and the movable sleeve.

[0010] Preferably, the inner side wall of the movable sleeve is fixedly connected to a limiting seat, and a surface of the limiting seat is provided with a perforation.

[0011] Preferably, the connecting column is fixedly connected to the extension column, a threaded groove is provided on the outer side of the connecting column, and a limiting block is fixedly connected to one end of the connecting column away from the extension column.

[0012] Preferably, the pressure seat is arc-shaped, the outer side of the pressure seat is fixedly connected to a connecting seat, and a through hole for the connecting column to pass through is opened on the surface of the connecting seat.

[0013] Beneficial effect: Compared with the prior art, the technical solution of the present application sets a telescopic part, and through the pulling of the connecting column, the extending column slides on the inner side of the movable sleeve, so that the pressure seat and the flange are separated, and the flange on the conical cover is docked with the flange on the protective shell. After docking, with the cooperation of the spring, the connecting column is reset, and the fastening sleeve is rotated. With the cooperation of the threaded groove, the pressure seat moves downward, so that the locking column on the pressure seat and the locking hole on the flange are docked and locked with the docking groove, so that the protective shell and the conical cover can be conveniently disassembled and assembled during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model.

[0015] Figure 2 It is a cross-sectional view of the utility model.

[0016] Figure 3 It is a three-dimensional diagram of the pressure seat of the utility model.

[0017] As shown in the figure: 1. Protective shell; 2. Conical cover; 201. Bushing tube; 3. Flange; 301. Locking hole; 4. Telescopic member; 41. Movable sleeve; 411. Limit seat; 42. Extension column; 43. Spring; 5. Connecting column; 501. Threaded groove; 502. Limiting block; 6. Press seat; 601. Connecting seat; 602. Through hole; 7. Fastening sleeve; 8. Locking column. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings, but this embodiment should not be understood as a limitation to the present invention.

[0019] The utility model Figures 1 to 3 As shown:

[0020] A novel drive axle main reducer housing assembly comprises a protective housing 1, a conical cover 2 is installed on the outer side of the protective housing 1, the number of the conical covers 2 is two and they are symmetrically distributed, a bushing tube 201 is installed on the end of the conical cover 2 away from the protective housing 1, a flange 3 is fixedly installed on the end of the protective housing 1 opposite to the conical cover 2, a locking hole 301 and a docking groove are opened on the surface of the flange 3, the docking groove is located on the flange 3 outside the protective housing 1, the locking hole 301 is located on the flange 3 outside the conical cover 2, the number of the locking holes 301 and the docking grooves is several, and the specifications of the several locking holes 301 and the docking grooves are the same;

[0021] It should be noted that the conical cover 2 is usually used to cover the top of the reducer to protect the internal components and prevent dust. The conical cover 2 is usually installed on the top of the reducer, covering the output shaft and other key components of the reducer to play a sealing and protective role. The conical cover 2 is usually made of metal or plastic and other materials, and has a certain strength and durability. It can effectively protect the internal components of the reducer from the influence of the external environment. The design of the conical cover 2 usually takes into account the overall structure and use environment of the reducer to ensure that it can perfectly cooperate with the reducer and play a good sealing and protective role.

[0022] A telescopic part 4 is installed on the flange 3. There are two telescopic parts 4, which are symmetrically distributed. The telescopic part 4 includes a movable sleeve 41 fixedly installed on the outside of the flange 3. The inner wall of the movable sleeve 41 is fixedly connected to a limiting seat 411. A through hole is provided on the surface of the limiting seat 411. An extension column 42 is movably connected to the inner side of the movable sleeve 41. The extension column 42 is "T"-shaped and is located on the inner side of the through hole. A spring 43 is fixedly connected between the extension column 42 and the movable sleeve 41, and one end of the spring 43 is fixedly connected to the limiting seat 411.

[0023] A connecting column 5 is installed on the telescopic member 4, and the connecting column 5 is fixedly connected to the extension column 42. A threaded groove 501 is provided on the outer side of the connecting column 5, and a limiting block 502 is fixedly connected to the end of the connecting column 5 away from the extension column 42. A pressure seat 6 is installed on the outer side of the connecting column 5. The pressure seat 6 is arc-shaped, and a connecting seat 601 is fixedly connected to the outer side of the pressure seat 6. A through hole 602 is provided on the surface of the connecting seat 601, and the diameter of the through hole 602 is larger than the diameter of the connecting column 5. A fastening sleeve 7 is installed on the outer side of the pressure seat 6, and the fastening sleeve 7 is rotatably connected to the connecting seat 601. The fastening sleeve 7 is threadedly connected to the threaded groove 501. A locking column 8 is fixedly connected to the outer side of the pressure seat 6. The number of locking columns 8 is the same as the number of locking holes 301, and the specifications of the locking columns 8 are compatible with the specifications of the locking holes 301.

[0024] In this embodiment, the fastening sleeve 7 is rotated, and the pressure seat 6 moves downward with the cooperation of the threaded groove 501, so that the locking column 8 on the pressure seat 6 and the locking hole 301 on the flange 3 are docked and locked with the docking groove, so that the protective shell 1 and the conical cover 2 can be easily disassembled and assembled during maintenance.

[0025] The working principle of this utility model:

[0026] By setting the telescopic part 4 and pulling the connecting column 5, the extending column 42 slides on the inner side of the movable sleeve 41, so that the pressure seat 6 is separated from the flange 3, and the flange 3 on the conical cover 2 is docked with the flange 3 on the protective shell 1. After docking, with the cooperation of the spring 43, the connecting column 5 is reset, and the fastening sleeve 7 is rotated. With the cooperation of the threaded groove 501, the pressure seat 6 moves downward, so that the locking column 8 on the pressure seat 6 and the locking hole 301 on the flange 3 are docked and locked with the docking groove, so that the protective shell 1 and the conical cover 2 can be conveniently disassembled and assembled during maintenance.

[0027] Parts not described in detail in this specification are well-known technologies in the art.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A new type of drive axle main reducer housing assembly, including a protective housing, characterized in that: A conical cover is installed on the outer side of the protective shell, and a flange is fixedly installed on the end of the protective shell opposite to the conical cover. A telescopic part is installed on the flange of the protective shell, a connecting column is installed on the telescopic part, a pressure seat that can abut against the flange on the conical cover is installed on the other side of the connecting column, a fastening sleeve is installed on the side of the pressure seat away from the telescopic part, and a locking column is fixedly connected to the side of the pressure seat close to the telescopic part.

2. According to claim 1, the novel drive axle final reducer housing assembly is characterized in that: A bushing tube is installed at one end of the conical cover away from the protective shell.

3. A novel drive axle final reducer housing assembly according to claim 1 or 2, characterized in that: The surface of the flange is provided with locking holes and docking grooves, the number of the locking holes and the docking grooves is several, and the specifications of the several locking holes and the docking grooves are the same.

4. According to claim 3, the novel drive axle final reducer housing assembly is characterized in that: The telescopic member comprises a movable sleeve fixedly mounted on the outer side of the flange of the protective shell, an extension column is movably connected to the inner side of the movable sleeve, and a spring is arranged between the extension column and the movable sleeve.

5. According to claim 4, the novel drive axle final reducer housing assembly is characterized in that: The inner side wall of the movable sleeve is fixedly connected to the limiting seat, and the surface of the limiting seat is provided with a through hole.

6. According to claim 4, the novel drive axle final reducer housing assembly is characterized in that: The connecting column is fixedly connected to the extension column, a threaded groove is provided on the outer side of the connecting column, and a limiting block is fixedly connected to one end of the connecting column away from the extension column.

7. A novel drive axle final reducer housing assembly according to claim 1 or 2 or 4 or 5 or 6, characterized in that: The pressure seat is in an arc shape, the outer side of the pressure seat is fixedly connected with a connecting seat, and the surface of the connecting seat is provided with a through hole for the connecting column to pass through.

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