CN220302694U - Self-adaptive rear axle transmission device - Google Patents
Self-adaptive rear axle transmission device Download PDFInfo
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- CN220302694U CN220302694U CN202322105799.8U CN202322105799U CN220302694U CN 220302694 U CN220302694 U CN 220302694U CN 202322105799 U CN202322105799 U CN 202322105799U CN 220302694 U CN220302694 U CN 220302694U
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- transmission
- cam sleeve
- rear axle
- driven gear
- transmission shaft
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 112
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 230000003044 adaptive effect Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
The utility model discloses a self-adaptive rear axle transmission device, which is characterized in that an end face cam is matched through the matching of a transmission cam sleeve, a primary driven gear and an elastic element, and then an elastic load is formed between transmission matching parts of the self-adaptive rear axle transmission device through the axial sliding matching of the transmission cam sleeve and a transmission shaft, so that the power of an input shaft input alternating load can be shaped into a very gentle power which is output to a differential mechanism input gear of a differential mechanism, the running quality of a vehicle is greatly improved, the fatigue problem of parts of the self-adaptive rear axle transmission device is greatly reduced, the service life is prolonged, and meanwhile, the whole process is completely self-adaptive, and the self-adaptive rear axle transmission device is purely mechanized and has extremely high reliability.
Description
Technical Field
The utility model relates to the technical field of transmission mechanisms, in particular to a self-adaptive rear axle transmission device.
Background
The rear axle transmission mechanism functions to transmit power from the motor to the rear axle. In actual working conditions, the power output by the motor is not an absolute gentle power, but is approximate to an alternating load power. However, the driving matching parts of the existing rear axle driving mechanism are rigidly matched, so that the power output to the rear axle differential mechanism is still power similar to alternating load, the smoothness of the power output is poor, the driving quality of a vehicle is affected, and the fatigue problem of parts of the rear axle driving mechanism is easy to occur, so that the service life is affected.
Solving the above problems is urgent.
Disclosure of Invention
The utility model provides a self-adaptive rear axle transmission device, which aims to solve the technical problems that the power output is not smooth and the service lives of parts are shorter due to the fact that the transmission matching parts of the existing rear axle transmission mechanism are all in a rigid matching mode.
The technical scheme is as follows:
the utility model provides a self-adaptation rear axle transmission, includes input shaft, transmission case and all installs drive mechanism and differential mechanism in the transmission case, integrated into one piece has one-level initiative tooth after the one end of input shaft inserts the transmission case, its characterized in that: the transmission mechanism comprises a transmission shaft parallel to the input shaft, a primary driven gear, a transmission cam sleeve and an elastic element, wherein the primary driven gear, the transmission cam sleeve and the elastic element are all sleeved on the transmission shaft, the primary driven gear is meshed with the primary driving gear and can rotate relative to the transmission shaft, the transmission cam sleeve can axially slide along the transmission shaft, one end faces, close to each other, of the primary driven gear and the transmission cam sleeve are cam profiles which jointly form an end face cam fit, the elastic element is used for driving the transmission cam sleeve to be close to the primary driven gear, and power output teeth meshed with a differential mechanism input gear of the differential mechanism are integrally formed on the transmission shaft.
Compared with the prior art, the utility model has the beneficial effects that:
according to the self-adaptive rear axle transmission device adopting the technical scheme, the end face cam fit is formed through the fit of the transmission cam sleeve, the primary driven gear and the elastic element, and the axial sliding fit of the transmission cam sleeve and the transmission shaft is realized, so that an elastic load is formed between transmission fit parts of the self-adaptive rear axle transmission device, the input shaft input alternating load power can be shaped into a very gentle power output differential mechanism input gear of the differential mechanism, the running quality of a vehicle is greatly improved, the fatigue problem of parts of the self-adaptive rear axle transmission device is greatly reduced, the service life is prolonged, meanwhile, the whole process is completely self-adaptive, and the self-adaptive rear axle transmission device is purely mechanized and has extremely high reliability.
Drawings
Fig. 1 is a schematic diagram of an adaptive rear axle transmission.
Detailed Description
The utility model is further described below with reference to examples and figures.
As shown in fig. 1, an adaptive rear axle transmission mainly comprises an input shaft 1, a transmission case 2, and a transmission mechanism and a differential 3 which are all installed in the transmission case 2. The input shaft 1 is typically connected to the motor shaft of a power motor by a coupling for transmitting power into the input shaft 1. The transmission mechanism is used for transmitting the power transmitted by the input shaft 1 to the differential 3.
One end of the input shaft 1 is inserted into the transmission case 2 and then integrally formed with a primary driving gear 1a, the transmission mechanism comprises a transmission shaft 4 parallel to the input shaft 1, a primary driven gear 5, a transmission cam sleeve 6 and an elastic element 7 which are all sleeved on the transmission shaft 4, the primary driven gear 5 can be sleeved on the transmission shaft 4 in a rotary manner relative to the transmission shaft 4, and the primary driven gear 5 is meshed with the primary driving gear 1 a. The transmission cam sleeve 6 can axially slide along the transmission shaft 4, one end face of the primary driven gear 5, which is close to the transmission cam sleeve 6, is a cam surface which jointly forms an end face cam fit, the elastic element 7 is used for driving the transmission cam sleeve 6 to be close to the primary driven gear 5, and the transmission shaft 4 is integrally formed with power output teeth 4a which are meshed with the differential input gear 3a of the differential 3.
Therefore, the end face cam fit is formed by the fit of the transmission cam sleeve 6, the primary driven gear 5 and the elastic element 7, and the axial sliding fit of the transmission cam sleeve 6 and the transmission shaft 4 is realized, when the moment of the input shaft 1 is increased, the transmission cam sleeve 6 moves in the direction away from the primary driven gear 5, and when the moment of the input shaft 1 is reduced, the transmission cam sleeve 6 moves in the direction close to the primary driven gear 5, so that an elastic load is formed between transmission fit parts of the self-adaptive rear axle transmission device, the input alternating load power can be shaped into a very gentle power to be output to a differential mechanism input gear of the differential mechanism, the running quality of a vehicle is greatly improved, the fatigue problem of parts of the self-adaptive rear axle transmission device is greatly reduced, the service life is prolonged, and meanwhile, the whole process is fully self-adaptive, and the self-adaptive is purely mechanized, and the reliability is extremely high.
In this embodiment, the outer diameter of the primary driven gear 5 is larger than the outer diameter of the primary driving gear 1a, and the outer diameter of the differential input gear 3a is larger than the outer diameter of the power output gear 4a, so that the effect of reducing speed and increasing torque can be achieved.
Further, a plurality of ball inner raceways 4b extending along the axial direction of the transmission shaft 4 are formed on the outer wall of the transmission shaft 4 in a recessed manner, the ball inner raceways 4b are uniformly distributed along the circumferential direction of the transmission shaft 4, a plurality of balls 8 are arranged in the ball inner raceways 4b, a ball outer raceway 6a corresponding to the ball inner raceways 4b one by one is formed on the inner wall of the transmission cam sleeve 6 in a recessed manner, and the balls 8 can roll in the corresponding ball inner raceways 4b and ball outer raceway 6 a. By arranging the balls 8, the stability and reliability of the axial sliding of the transmission cam sleeve 6 on the transmission shaft 4 are greatly improved by utilizing the rolling of the balls 8 in the ball inner rolling way 4b and the ball outer rolling way 6 a.
The elastic element 7 is a disc spring sleeved on the transmission shaft 4, the locking component 9 is detachably mounted at one end of the transmission shaft 4, two ends of the disc spring are respectively elastically supported on one end far away from the transmission cam sleeve 6 and the locking component 9, the force application of the disc spring is stable and reliable, the number of the disc springs can be selected according to actual requirements, and the pretightening force on the disc spring can be adjusted through the locking component 9, so that the operation is convenient.
The locking assembly 9 generally comprises a retainer ring, a locking cover and a retainer ring, and the pretightening force of the disc spring can be conveniently adjusted by selecting retainer rings with different thicknesses.
The radial protrusion is formed with spacing support section 4c on the outer peripheral face of transmission shaft 4, and power take off tooth 4a shaping is on spacing support section 4 c's outer peripheral face, and one-level driven gear 5 is rotatably installed on transmission shaft 4 through bearing 10, is provided with end bearing 11 between one end terminal surface that one-level driven gear 5 kept away from transmission cam sleeve 6 and spacing support section 4 c's the adjacent terminal surface, through setting up bearing 10 and end bearing 11, has promoted one-level driven gear 5 pivoted smoothness by a wide margin.
Further, the primary driven gear 5 comprises a cam sleeve part 5a and a gear part 5b integrally formed on the outer peripheral surface of the cam sleeve part 5a, one end face of the cam sleeve part 5a adjacent to the transmission cam sleeve 6 is a cam molded surface, one end face of the cam sleeve part 5a adjacent to the end face bearing 11 is supported on the end face bearing 11, and the integrally formed primary driven gear 5 is high in structural strength and long in service life.
In the embodiment, the input shaft 1, the transmission shaft 4 and the differential 3 are all arranged in the transmission case 2 through deep groove ball bearings, so that the transmission is stable and reliable.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (6)
1. The utility model provides a self-adaptation rear axle transmission, includes input shaft (1), transmission case (2) and all installs drive mechanism and differential mechanism (3) in transmission case (2), integrated into one piece has one-level initiative tooth (1 a), its characterized in that behind transmission case (2) are inserted to the one end of input shaft (1): the transmission mechanism comprises a transmission shaft (4) parallel to an input shaft (1), a primary driven gear (5), a transmission cam sleeve (6) and an elastic element (7), wherein the primary driven gear (5), the transmission cam sleeve (6) and the elastic element (7) are sleeved on the transmission shaft (4), the primary driven gear (5) is meshed with primary driving teeth (1 a) and can rotate relative to the transmission shaft (4), the transmission cam sleeve (6) can axially slide along the transmission shaft (4), one end faces, close to each other, of the primary driven gear (5) and the transmission cam sleeve (6) are cam profiles which jointly form an end face cam fit, the elastic element (7) is used for driving the transmission cam sleeve (6) to be close to the primary driven gear (5), and power output teeth (4 a) meshed with a differential mechanism input gear (3 a) of a differential mechanism (3) are integrally formed on the transmission shaft (4).
2. The adaptive rear axle transmission as set forth in claim 1, wherein: the outer wall of the transmission shaft (4) is concavely provided with a plurality of ball inner raceways (4 b) extending along the axial direction of the transmission shaft, the ball inner raceways (4 b) are uniformly distributed along the circumferential direction of the transmission shaft (4), a plurality of balls (8) are arranged in the ball inner raceways (4 b), the inner wall of the transmission cam sleeve (6) is concavely provided with ball outer raceways (6 a) which are respectively in one-to-one correspondence with the ball inner raceways (4 b), and the balls (8) can roll in the corresponding ball inner raceways (4 b) and the ball outer raceways (6 a).
3. The adaptive rear axle transmission as set forth in claim 1, wherein: the elastic element (7) is a disc spring sleeved on the transmission shaft (4), a locking component (9) is detachably arranged at one end of the transmission shaft (4), and two ends of the disc spring are respectively elastically supported on one end, far away from the transmission cam sleeve (6), of the locking component (9).
4. The adaptive rear axle transmission as set forth in claim 1, wherein: the transmission shaft (4) is formed with spacing support section (4 c) on the outer peripheral face of extension radial protrusion, power take off tooth (4 a) shaping is on the outer peripheral face of spacing support section (4 c), one-level driven gear (5) is rotatably installed on transmission shaft (4) through bearing (10), and one-level driven gear (5) is kept away from and is provided with end bearing (11) between the one end terminal surface of transmission cam cover (6) and the adjacent terminal surface of spacing support section (4 c).
5. The adaptive rear axle transmission as defined in claim 4, wherein: the primary driven gear (5) comprises a cam sleeve part (5 a) and a gear part (5 b) integrally formed on the outer peripheral surface of the cam sleeve part (5 a), one end face of the cam sleeve part (5 a) adjacent to the transmission cam sleeve (6) is the cam profile, and one end face of the cam sleeve part (5 a) adjacent to the end face bearing (11) is supported on the end face bearing (11).
6. The adaptive rear axle transmission as set forth in claim 1, wherein: the outer diameter of the primary driven gear (5) is larger than that of the primary driving gear (1 a), and the outer diameter of the differential input gear (3 a) is larger than that of the power output gear (4 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322105799.8U CN220302694U (en) | 2023-08-07 | 2023-08-07 | Self-adaptive rear axle transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322105799.8U CN220302694U (en) | 2023-08-07 | 2023-08-07 | Self-adaptive rear axle transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220302694U true CN220302694U (en) | 2024-01-05 |
Family
ID=89348462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322105799.8U Active CN220302694U (en) | 2023-08-07 | 2023-08-07 | Self-adaptive rear axle transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220302694U (en) |
-
2023
- 2023-08-07 CN CN202322105799.8U patent/CN220302694U/en active Active
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