Automobile gearbox end cover

Abstract

The utility model discloses an automobile gearbox end cover belongs to gearbox technical field, including output shaft end cover, the side surface fixed with two anti -unhooking of output shaft end cover, the back of output shaft end cover is provided with positioning dismounting mechanism, and positioning dismounting mechanism includes rotary support arm, axial limit component and positioning sleeve, and the one side of output shaft end cover is provided with positioning sleeve, and the side surface on positioning sleeve is fixed with rotary support arm, and axial limit component sets up one end of rotary support arm, and the end face of two anti -unhooking all is provided with anti -unhooking groove, and the anti -unhooking groove opening direction of two anti -unhooking is opposite, the utility model discloses the positioning dismounting mechanism and anti -unhooking that set up, discard the complex positioning mode that traditional screw locking needs accurate alignment screw hole, through twisting output shaft end cover makes anti -unhooking and rotary support arm interlock, can complete preliminary positioning, and the positioning operation difficulty is reduced greatly, and assembly efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of gearbox technology, specifically to an automotive gearbox end cover. Background Technology

[0002] In automotive transmission systems, the gearbox end cover, as a key sealing and support component, plays a vital role in ensuring the stable operation of internal gears, shafts, and other parts, as well as preventing lubricant leakage. As the automotive manufacturing industry develops towards higher efficiency and intelligence, higher requirements are placed on the installation accuracy, assembly efficiency, and reliability of the gearbox end cover.

[0003] However, traditional automotive gearbox end covers are typically installed and secured using screws. This method requires precise alignment of the screw holes during installation, and the use of screwdrivers, wrenches, and other tools to tighten multiple screws sequentially to achieve a secure connection between the end cover and the gearbox housing. During the positioning phase, due to the extremely high precision required for the screw hole positions, operators must repeatedly adjust the end cover position to ensure complete alignment. Even slight deviations can lead to installation failure. This not only increases the complexity of the positioning operation but also easily causes problems such as screw hole wear and screw stripping. Furthermore, the step of tightening each screw individually is cumbersome and time-consuming, making it difficult to meet the demands of modern automotive production lines for large-scale and rapid production. Therefore, a new automotive gearbox end cover is needed to solve the problems existing in the current technology. Utility Model Content

[0004] The purpose of this invention is to provide an automotive gearbox end cover to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automotive gearbox end cover, including an output shaft end cover, with two anti-disengagement hooks fixed to the side surface of the output shaft end cover. A positioning and disassembly mechanism is provided on the back of the output shaft end cover. The positioning and disassembly mechanism includes a rotating support arm, an axial limiting component, and a positioning sleeve. The positioning sleeve is disposed on one side of the output shaft end cover, the rotating support arm is fixed to the side surface of the positioning sleeve, the axial limiting component is disposed at one end of the rotating support arm, and anti-disengagement grooves are provided on one end face of each of the two anti-disengagement hooks, with the opening directions of the anti-disengagement grooves of the two anti-disengagement hooks being opposite.

[0006] Preferably, the axial limiting assembly includes a clamping shell and a return spring. The clamping shell is slidably connected to the outside of the rotating arm, and the return spring is sleeved on the outside of the rotating arm. A fixed end plate is fixed to one end of the clamping shell.

[0007] Preferably, one end of the reset spring is fixed to the end face of the fixed end plate, and the other end of the reset spring is fixed to the end face of the clamping shell.

[0008] Preferably, a limiting groove is formed on one side surface of the clamping shell, and a limiting groove is formed on one end face of the anti-disengagement hook, with the clamping shell embedded in the limiting groove of the anti-disengagement hook.

[0009] Preferably, the rotating support arm is adapted to the anti-disengagement hook and anti-disengagement groove, and a limit block is fixed in the limit groove of the anti-disengagement hook, and the limit block is fitted with the limit slot of the pressing shell.

[0010] Preferably, one end of the output shaft end cover is fitted with a through-shaft opening, which slides through the inside of the positioning sleeve, and one end face of the positioning sleeve is fixed to the vehicle gearbox.

[0011] This utility model provides an automotive gearbox end cover, which has the following advantages compared with the prior art:

[0012] By using a positioning and disassembly mechanism and an anti-disengagement hook, the complex positioning method that requires precise alignment of screw holes in traditional screw locking is eliminated. The initial positioning can be completed by twisting the output shaft end cover to engage the anti-disengagement hook with the rotating support arm, which greatly reduces the difficulty of positioning operations and improves assembly efficiency.

[0013] With the axial limiting component in place, after initial positioning, the clamping shell in the axial limiting component automatically resets under the action of the return spring, embeds into the anti-disengagement limiting groove and engages with the limiting block, effectively limiting the accidental twisting of the output shaft end cover, reducing the risk of detachment from the gearbox, and ensuring the reliability of the automotive gearbox operation; during the overall installation process, only simple operations such as pulling, twisting, and automatic spring-back engagement are required, without the need to use tools to tighten screws, which significantly simplifies the installation process, shortens the assembly time, and reduces labor intensity, making it especially suitable for large-scale production scenarios. Attached Figure Description

[0014] Figure 1 This is a perspective view of the overall structure of this utility model;

[0015] Figure 2 This is a perspective view of the output shaft end cover structure of this utility model;

[0016] Figure 3 This is a perspective view of the positioning sleeve structure of this utility model;

[0017] Figure 4 This is a perspective view of the anti-detachment structure of this utility model.

[0018] In the diagram: 1. Output shaft end cover; 2. Through shaft opening; 3. Positioning and disassembly mechanism; 4. Anti-disengagement hook; 5. Rotating support arm; 6. Axial limiting component; 7. Positioning sleeve; 8. Anti-disengagement groove; 9. Limiting groove; 10. Limiting block; 11. Pressing shell; 12. Limiting groove; 13. Fixed end plate; 14. Return spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides an automotive gearbox end cover, including an output shaft end cover 1. Two anti-disengagement hooks 4 are fixed on the side surface of the output shaft end cover 1. A positioning and disassembly mechanism 3 is provided on the back of the output shaft end cover 1. The positioning and disassembly mechanism 3 includes a rotating support arm 5, an axial limiting component 6, and a positioning sleeve 7. The positioning sleeve 7 is provided on one side of the output shaft end cover 1. The rotating support arm 5 is fixed on the side surface of the positioning sleeve 7. The axial limiting component 6 is provided at one end of the rotating support arm 5. An anti-disengagement groove 8 is provided on one end face of each of the two anti-disengagement hooks 4. The opening directions of the anti-disengagement grooves 8 of the two anti-disengagement hooks 4 are opposite.

[0021] Before use, fix the positioning sleeve 7 to the car gearbox, so that the gearbox input shaft passes through the center hole of the positioning sleeve 7. When installing the output shaft end cover 1, first pull the clamping shell 11 outward, then align and insert the shaft through hole 2 of the output shaft end cover 1 along the positioning sleeve 7, rotate the output shaft end cover 1, so that the two anti-disengagement hooks 4 on the end cover are engaged with the rotating support arm 5. This operation achieves the initial positioning of the output shaft end cover 1 and the gearbox. Compared with the traditional screw locking, which requires precise alignment of the screw holes, the positioning difficulty is significantly reduced.

[0022] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the axial limiting assembly 6 includes a clamping shell 11 and a return spring 14. The clamping shell 11 is slidably connected to the outside of the rotating support arm 5, and the return spring 14 is sleeved on the outside of the rotating support arm 5. One end of the clamping shell 11 is fixed with a fixed end plate 13, one end of the return spring 14 is fixed on the end face of the fixed end plate 13, and the other end of the return spring 14 is fixed on the end face of the clamping shell 11.

[0023] After initial positioning, the clamping shell 11, which is slidably fitted onto the rotating support arm 5, automatically resets under the restoring force of the return spring 14. At this time, one end of the clamping shell 11 is embedded in the limiting groove 9 of the anti-disengagement hook 4, and its limiting slot 12 precisely engages with the limiting block 10 in the limiting groove 9, effectively restricting the movement of the anti-disengagement hook 4 and preventing the output shaft end cover 1 from accidentally twisting and loosening. Compared with the traditional screw fixing method, this quick limiting design greatly simplifies the operation process and improves installation efficiency.

[0024] Further as Figure 1 , Figure 2 and Figure 4 As shown, it is worth noting that a limiting groove 12 is provided on one side surface of the clamping shell 11, and a limiting groove 9 is provided on one end face of the anti-disengagement hook 4. The clamping shell 11 is embedded in the limiting groove 9 of the anti-disengagement hook 4. The rotating support arm 5 is adapted to the anti-disengagement groove 8 of the anti-disengagement hook 4. A limiting block 10 is fixed in the limiting groove 9 of the anti-disengagement hook 4, and the limiting block 10 is properly engaged with the limiting groove 12 of the clamping shell 11.

[0025] Further as Figure 1 As shown, it is worth noting that one end of the output shaft end cover 1 is fitted with a through-shaft opening 2, which slides through the inside of the positioning sleeve 7, and one end face of the positioning sleeve 7 is fixed to the car gearbox.

[0026] The solution has the following working process: Before use, the positioning sleeve 7 is fixed on the car gearbox, and the gearbox input shaft passes through the center hole of the positioning sleeve 7. When the output shaft end cover 1 is installed with the gearbox, the clamping shell 11 is pulled outward first. Then, the shaft through hole 2 of the output shaft end cover 1 is aligned and inserted along the positioning sleeve 7. Then, the output shaft end cover 1 is twisted until the two anti-disengagement hooks 4 on the output shaft end cover 1 are engaged with the rotating support arm 5. This can initially position the output shaft end cover 1 with the gearbox. The twisting positioning operation of the output shaft end cover 1 can simplify the screw hole alignment positioning steps in the traditional screw locking method, thereby reducing the positioning operation difficulty of the output shaft end cover 1.

[0027] After the output shaft end cover 1 is initially positioned with the car gearbox, the clamping shell 11, which is slidably sleeved on the rotating support arm 5, automatically resets under the restoring force of the return spring 14. One end of the clamping shell 11 is embedded in the limiting groove 9 of the anti-disengagement hook 4, and at the same time, the limiting slot 12 of the clamping shell 11 is aligned with the limiting block 10 in the limiting groove 9 and engages. In this way, the clamping shell 11 can limit the anti-disengagement hook 4, thereby reducing the trouble of the output shaft end cover 1 accidentally twisting and becoming loose from the gearbox. The quick limiting method of the output shaft end cover 1 by the clamping shell 11 has the advantage of simple operation compared with the traditional screw fixing method.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Although embodiments of this utility model have been shown and described, this does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model. Regarding the embodiments of this utility model, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automotive gearbox end cover comprising an output shaft end cover (1), characterized in that: Two anti-disengagement hooks (4) are fixed on the side surface of the output shaft end cover (1). A positioning and disassembly mechanism (3) is provided on the back of the output shaft end cover (1). The positioning and disassembly mechanism (3) includes a rotating support arm (5), an axial limiting component (6), and a positioning sleeve (7). The positioning sleeve (7) is provided on one side of the output shaft end cover (1). The rotating support arm (5) is fixed on the side surface of the positioning sleeve (7). The axial limiting component (6) is provided at one end of the rotating support arm (5). An anti-disengagement groove (8) is provided on one end face of each of the two anti-disengagement hooks (4). The opening directions of the anti-disengagement grooves (8) of the two anti-disengagement hooks (4) are opposite.

2. The automobile transmission end cover according to claim 1, characterized in that: The axial limiting assembly (6) includes a clamping shell (11) and a return spring (14). The clamping shell (11) is slidably connected to the outside of the rotating arm (5), and the return spring (14) is sleeved on the outside of the rotating arm (5). One end of the clamping shell (11) is fixed with a fixed end plate (13).

3. The automobile transmission end cover according to claim 2, characterized in that: One end of the reset spring (14) is fixed to the end face of the fixed end plate (13), and the other end of the reset spring (14) is fixed to the end face of the clamping shell (11).

4. The automobile transmission end cover according to claim 3, characterized in that: A limiting groove (12) is provided on one side surface of the clamping shell (11), and a limiting groove (9) is provided on one end face of the anti-disengagement hook (4). The clamping shell (11) is embedded in the limiting groove (9) of the anti-disengagement hook (4).

5. The automotive transmission end cover of claim 4, wherein: The rotating arm (5) is adapted to the anti-detachment groove (8) of the anti-detachment hook (4), and a limit block (10) is fixed in the limit groove (9) of the anti-detachment hook (4). The limit block (10) is fitted with the limit groove (12) of the pressing shell (11).

6. The automobile transmission end cover according to claim 1, wherein: One end of the output shaft end cap (1) is fitted with a shaft through-hole (2), which slides through the inside of the positioning sleeve (7), and one end face of the positioning sleeve (7) is fixed to the automobile gearbox.

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