Transmission input shaft
By designing a detachable device on the transmission input shaft, the rapid replacement of gears on the shaft is achieved, and the high replacement cost and resource waste caused by gear wear in the prior art is solved, and the maintenance process is simplified.
Patent Information
- Application Number
- CN202420546503.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-03-20
AI Technical Summary
During use, the gears are worn and broken due to long rotation during long periods of rotation, and the entire input shaft needs to be replaced, which is costly and wastes resources.
A transmission input shaft including a detachable device is designed, and the gears on the shaft are replaced by a stop device, a detachable device and a limiting device to achieve a rapid replacement of the gears on the shaft by providing splines and a detachable gears on the input shaft body.
It realizes rapid replacement of gears on the shaft, reduces maintenance costs, avoids unnecessary waste of resources, and simplifies the maintenance process.
Smart Images
Figure CN222351357U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transmission parts, in particular to a transmission input shaft. Background Art
[0002] The transmission input shaft is the shaft through which power enters the transmission. Power enters the transmission from the engine through the input shaft, and then the input shaft drives the integrally formed gear on the shaft to transfer power to the output gear, thereby driving the output shaft to rotate and driving the differential to move. The existing transmission input shaft will easily cause the gear teeth integrally formed on the shaft to wear and break due to long-term rotation during use. In order to ensure that the input shaft can work normally, a new transmission input shaft needs to be replaced. However, directly replacing the transmission input shaft is expensive, and other parts of the shaft body are not worn. The entire replacement wastes too much social production resources. Utility Model Content
[0003] Therefore, in view of the above problems, the utility model provides a transmission input shaft which is convenient for replacing the gears on the input shaft.
[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is to provide a transmission input shaft, including an input shaft body, a spline arranged on the input shaft body, and the input shaft body is provided with a shaft gear through a detachable device for replacement when the shaft gear is damaged;
[0005] The detachable device includes: a first connecting thread provided on the inner side of the gear on the shaft, a second connecting thread provided on the input shaft body for matching with the first connecting thread, and a rotation-stopping device for preventing the thread from rotating is also provided between the gear on the shaft and the input shaft body.
[0006] A further improvement is that the anti-rotation device includes: a retaining ring, a retaining ring groove opened at the connection between the gear on the shaft and the input shaft body, a plurality of clamping blocks arranged on the retaining ring and distributed on the inner ring and outer ring of the retaining ring, and clamping grooves opened on the inner and outer sides of the retaining ring groove for engaging with the clamping blocks, and an anti-drop device is arranged between the retaining ring and the input shaft body and the gear on the shaft.
[0007] A further improvement is that the anti-drop device comprises: a plurality of threaded holes arranged on the input shaft body, and mounting holes arranged on the retaining ring for matching with the threaded holes, wherein screws are locked in the threaded holes.
[0008] A further improvement is that: the anti-drop device is: the retaining ring is welded between the input shaft body and the gear on the shaft.
[0009] A further improvement is that a limiting device for reducing the force on the anti-rotation device is also arranged on the input shaft body.
[0010] A further improvement is that the limiting device comprises: a limiting block arranged on the input shaft body and located at the tail end of the second connecting thread, and a limiting groove provided on the gear on the shaft for engaging with the limiting block.
[0011] A further improvement is that the number of the card slots is greater than the number of card blocks.
[0012] The advantages and beneficial effects of the utility model are:
[0013] The structure is simple and replacement is convenient. The shaft gear and the input shaft, which were originally integrally formed on the input shaft body, are manufactured separately and connected and combined through a detachable device. When the shaft gear is worn, it can be quickly replaced to avoid direct replacement of the entire input shaft, saving maintenance costs and waste of social resources. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic top view of a transmission input shaft of the utility model;
[0015] Figure 2 This is a partial cross-sectional schematic diagram of a transmission input shaft of the utility model;
[0016] Figure 3 This is a rear view schematic diagram of a transmission input shaft without a retaining ring installed in the utility model;
[0017] Figure 4 This is a schematic diagram of a transmission input shaft retaining ring and a clamping block of the utility model;
[0018] In the figure: 1. Input shaft body; 2. Spline; 3. Gear on the shaft; 4. Retaining ring; 5. Retaining ring groove; 6. Block; 7. Slot; 8. Threaded hole; 9. Mounting hole; 10. Limit block; 11. Limiting groove. DETAILED DESCRIPTION
[0019] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.
[0020] like Figure 1-Figure 4 As shown, a transmission input shaft comprises an input shaft body 1 and a spline 2 arranged on the input shaft body 1. The input shaft body 1 is provided with a shaft gear 3 through a detachable device for replacement when the shaft gear 3 is damaged.
[0021] In order to facilitate the replacement of the shaft gear 3, the detachable device includes: a first connecting thread (not shown in the figure) opened on the inner side of the shaft gear 3, and a second connecting thread (not shown in the figure) opened on the input shaft body 1 for matching with the first connecting thread. A stop device for preventing the thread from rotating is also provided between the shaft gear 3 and the input shaft body 1.
[0022] In order to prevent the gear 3 on the shaft from rotating when subjected to force, the anti-rotation device includes: a retaining ring 4, a retaining ring 4 groove opened at the connection between the gear 3 on the shaft and the input shaft body 1, a plurality of clamping blocks 6 arranged on the retaining ring 4 and distributed on the inner and outer rings of the retaining ring 4, and a clamping groove 7 opened on the inner and outer sides of the retaining ring 4 groove for engaging with the clamping blocks 6. An anti-drop device is provided between the retaining ring 4, the input shaft body 1 and the gear 3 on the shaft.
[0023] In order to facilitate the fixing of the retaining ring 4, the anti-drop device includes: a plurality of threaded holes 8 provided on the input shaft body 1, and mounting holes 9 provided on the retaining ring 4 for matching with the threaded holes 8, wherein screws (not shown in the figure) are locked in the threaded holes 8.
[0024] In order to facilitate the fixing of the retaining ring 4 and further improve the connection strength, the anti-drop device is: the retaining ring 4 is welded between the input shaft body 1 and the gear 3 on the shaft. After the gear 3 on the shaft is damaged, the welding point can be broken to remove the gear on the wheel. After the retaining ring 4 is locked by screws, it can be welded again to further improve the connection strength.
[0025] In order to cooperate with the anti-rotation device and reduce the force applied to the anti-rotation device, a limiting device for reducing the force applied to the anti-rotation device is also provided on the input shaft body 1, and the limiting device includes: a limiting block 10 arranged on the input shaft body 1 and located at the tail end of the second connecting thread, and a limiting groove 11 opened on the gear 3 on the shaft for engaging with the limiting block 10.
[0026] In order to facilitate the installation of the retaining ring 4 , the clamping grooves 7 and the clamping blocks 6 are aligned, and the number of the clamping grooves 7 is greater than the number of the clamping blocks 6 .
[0027] Working principle: When the transmission input shaft is damaged, remove the transmission input shaft, unscrew the screws to remove the retaining ring 4, release the engagement between the slot 7 and the block 6, rotate the shaft gear 3, release the engagement between the first connecting thread and the second connecting thread, remove the shaft gear 3, and then install the new shaft gear 3 on the input shaft body 1, align the block 6 and the slot 7, position the retaining ring 4, and re-install the shaft gear 3.
[0028] The basic principles, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.
Claims
1. A transmission input shaft, comprising an input shaft body and a spline arranged on the input shaft body, characterized in that: The input shaft body is provided with a shaft gear through a detachable device for replacement when the shaft gear is damaged; The detachable device includes: a first connecting thread provided on the inner side of the gear on the shaft, a second connecting thread provided on the input shaft body for matching with the first connecting thread, and a rotation-stopping device for preventing the thread from rotating is also provided between the gear on the shaft and the input shaft body.
2. A transmission input shaft according to claim 1, characterized in that: The anti-rotation device includes: a retaining ring, a retaining ring groove opened at the connection between the gear on the shaft and the input shaft body, a plurality of clamping blocks arranged on the retaining ring and distributed on the inner ring and the outer ring of the retaining ring, and clamping grooves opened on the inner and outer sides of the retaining ring groove for engaging with the clamping blocks. An anti-drop device is arranged between the retaining ring and the input shaft body and the gear on the shaft.
3. A transmission input shaft according to claim 2, characterized in that: The anti-drop device comprises: a plurality of threaded holes arranged on the input shaft body, and mounting holes arranged on the retaining ring for matching with the threaded holes, wherein screws are locked in the threaded holes.
4. A transmission input shaft according to claim 2, characterized in that: The anti-drop device is: the retaining ring is welded between the input shaft body and the gear on the shaft.
5. The transmission input shaft according to claim 1, characterized in that: The input shaft body is also provided with a limiting device for reducing the force on the anti-rotation device.
6. A transmission input shaft according to claim 5, characterized in that: The limiting device comprises: a limiting block arranged on the input shaft body and located at the tail end of the second connecting thread, and a limiting groove arranged on the gear on the shaft and used for engaging with the limiting block.
7. The transmission input shaft according to claim 2, characterized in that: The number of the card slots is greater than the number of the card blocks.