CN207864583U - The connection structure of new-energy automobile transmission input shaft and output shaft - Google Patents
The connection structure of new-energy automobile transmission input shaft and output shaft Download PDFInfo
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- CN207864583U CN207864583U CN201820236005.8U CN201820236005U CN207864583U CN 207864583 U CN207864583 U CN 207864583U CN 201820236005 U CN201820236005 U CN 201820236005U CN 207864583 U CN207864583 U CN 207864583U
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- output shaft
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Abstract
The utility model discloses a kind of connection structure of new-energy automobile transmission input shaft and output shaft, including input shaft, first bearing, second bearing and output shaft, the inner ring of first bearing is fixed in the outer peripheral wall of input shaft front end, the outer ring of first bearing is fixedly connected on shell, the rear end of input shaft is connected to output shaft by second bearing, wherein, second bearing is RN type cylindrical bearings, the inner ring of RN type cylindrical bearings is fixed at the front end of output shaft, inputs being machined with and the matched bearing outer ring of cylindrical roller for shaft rear end.The connection structure of new-energy automobile transmission input shaft and output shaft described in the utility model can effectively prevent axial force from bearing is had an impact and being caused the failure or damage of bearing.
Description
Technical field
The utility model belongs to automotive trannsmission system technical field, and in particular to a kind of new-energy automobile transmission input shaft
With the connection structure of output shaft.
Background technology
The relative rotation speed of new-energy automobile gearbox is higher, traditional new-energy automobile transmission input shaft and output shaft
Connection structure has that axial force has an impact bearing caused by rotating speed height, and axial force causes bearing to shake
It is dynamic, and then lead to the failure or damage of bearing.
The patent document that Chinese Patent Application No. is 201220484131.8 discloses a kind of transmission input shaft and output
The connection structure of axis is connected for transmission input shaft with the end that output shaft is extend into gearbox, which is characterized in that packet
It includes：Fixing sleeve is set to the tapered roller bearing internal ring assembly of the input shaft or output shaft end；It is opened in another shaft end
Tapered shaft bearing bore, the diameter of the tapered shaft bearing bore is gradually reduced from one end close to shaft end to the other end, the cone
Bearing hole is set in outside the tapered roller bearing internal ring assembly, and just with the tapered roller bearing internal ring assembly structure
At complete taper roll bearing structure.
A kind of connection structure of transmission input shaft and output shaft is disclosed in the prior art, and above-mentioned connection structure is in reality
The course of work in i.e. there are technical problems as above.
Based on the prior art there are technical problem as above, the present inventor combines production and research and development experience for many years, proposes
A kind of connection structure of new-energy automobile transmission input shaft and output shaft.
Utility model content
The utility model provides a kind of connection structure of new-energy automobile transmission input shaft and output shaft, the new energy
The connection structure of automobile gearbox input shaft and output shaft effectively can prevent axial force from being had an impact to bearing and causing axis
The failure or damage held.
The utility model adopts the following technical solution：
A kind of connection structure of new-energy automobile transmission input shaft and output shaft, including input shaft, first bearing, second
The inner ring of bearing and output shaft, first bearing is fixed in the outer peripheral wall of input shaft front end, and the outer ring of first bearing is fixed
It is connected to gear box casing, the rear end of input shaft is connected to output shaft by second bearing, wherein second bearing is RN type cylinders
The inner ring of bearing, RN type cylindrical bearings is fixed at the front end of output shaft, and input shaft rear end is machined with and RN type cylindrical bearings
Matched bearing outer ring.
Further, first bearing is deep groove ball bearing, and first bearing passes through deep groove ball bearing snap ring and bearing plate pair
First bearing is positioned, wherein what deep groove ball bearing snap ring can be dismantled be embedded in the outer peripheral wall of input shaft front end and with
The front end of first bearing abuts, and bearing plate is fixed on gear box casing and is abutted with the rear end of first bearing.
Further, returning the car on the rear end of input shaft has gear.
Further, if the rear end of input shaft also uniformly offers dry lube injection hole, the lubricating oil injection hole
Lubricating oil can be injected into second bearing.
Further, the inner ring of cylindrical bearing is fixed at the front end of output shaft by cylindrical bearing snap ring.
Further, the axial plane of the inner ring of cylindrical bearing and output shaft is interference fitted.
Compared with prior art, the beneficial effects of the utility model are：
The connection structure of new-energy automobile transmission input shaft and output shaft described in the utility model passes through input shaft,
One bearing, second bearing and output shaft are equipped with, and make the connection of the new-energy automobile transmission input shaft and output shaft
The structure of structure is simple, transmission efficiency.
The connection structure of new-energy automobile transmission input shaft and output shaft described in the utility model, by by second bearing
Outer ring removal the service life of second bearing can effectively be extended using outer ring of the input shaft rear end as second bearing.
The connection structure of new-energy automobile transmission input shaft and output shaft described in the utility model, by being equipped with depth
Ditch ball bearing snap ring and bearing plate keep the connection structure of the new-energy automobile transmission input shaft and output shaft effective
The play for preventing first bearing.
Description of the drawings
Fig. 1 is the structural representation of the connection structure of new-energy automobile transmission input shaft and output shaft described in the utility model
Figure.
Reference numeral：
1- input shafts, 2- first bearings, 3- second bearings, 4- output shafts, 5- deep groove ball bearings snap ring, 6- bearing plates,
7- lubricating oil injection hole, 8- cylindrical bearing snap rings.
Specific implementation mode
In the following with reference to the drawings and specific embodiments, the utility model is further described.
Embodiment
As shown in Figure 1, a kind of connection structure of new-energy automobile transmission input shaft and output shaft, including input shaft 1,
The inner ring of one bearing 2, second bearing 3 and output shaft 4, first bearing 2 is fixed in the outer peripheral wall of 1 front end of input shaft, the
The outer ring of one bearing 2 is fixedly connected on gear box casing (not shown), and 1 rear end of input shaft is connected to defeated by second bearing 3
Shaft 4, wherein second bearing 3 is RN type cylindrical bearings, and the inner ring of RN type cylindrical bearings is fixed at the front end of output shaft 4,
1 rear end of input shaft is machined with and the matched outer ring of RN type cylindrical bearings.
Wherein, RN types cylindrical bearing plays the role of connecting input shaft 1 and output shaft 4, is sent out in input shaft 1 and output shaft 4
It is the machined holes on input shaft 1, new energy vapour that can support rotation, the outer ring of RN type cylindrical bearings while raw relative rotation
Vehicle gearbox rotating speed is high compared to the rotating speed of other gearboxes, is replaced outside RN type cylindrical bearings using the machined holes on input shaft 1
Circle, the stability of RN type cylindrical bearings can be improved, RN type cylindrical bearings in running at high speed, the type cylindrical bearing outer rings RN by
It can shake when the radial load of excess load, it will it causes RN type cylindrical bearings outer ring to crack, while roller being caused to damage, and machine
Processing hole replaces RN type cylindrical bearings outer ring that can improve the thickness of outer wall, and when high-speed rotation not will produce because shaking the damage generated
Bad or spot corrosion.
First bearing 2 is deep groove ball bearing, and first bearing 2 is by deep groove ball bearing snap ring 5 and bearing plate 6 to first axle
It holds 2 to be positioned, wherein what deep groove ball bearing snap ring 5 can be dismantled be embedded in the outer peripheral wall of 1 front end of input shaft and with first
The front end of bearing 2 abuts, and bearing plate 6 is fixed on gear box casing and is abutted with the rear end of first bearing 2.
Returning the car on the rear end of input shaft 1 has gear (not shown).
Wherein, gear is integrally formed with input shaft 1, transmission efficiency higher.
If the rear end of input shaft 1 also uniformly offers dry lube injection hole 7, the lubricating oil injection hole 7 can be to
Lubricating oil is injected in second bearing 3.
The inner ring of cylindrical bearing is fixed at the front end of output shaft 4 by cylindrical bearing snap ring 8.
The inner ring of cylindrical bearing is interference fitted with the axial plane of output shaft 4.
The utility model is not limited to the above embodiment, without departing substantially from the utility model in essence content, this
Any deformation, improvement, the replacement that field technology personnel are contemplated that each fall within the scope of protection of the utility model.
Claims (6)
1. a kind of connection structure of new-energy automobile transmission input shaft and output shaft, including input shaft, first bearing, the second axis
It holds and output shaft, which is characterized in that the inner ring of first bearing is fixed in the outer peripheral wall of input shaft front end, first bearing
Outer ring is fixedly connected on gear box casing, and the rear end of input shaft is connected to output shaft by second bearing, wherein second bearing is
The inner ring of RN type cylindrical bearings, RN type cylindrical bearings is fixed at the front end of output shaft, and input shaft rear end is machined with and RN types
The matched bearing outer ring of cylindrical bearing.
2. the connection structure of new-energy automobile transmission input shaft and output shaft according to claim 1, which is characterized in that
First bearing is deep groove ball bearing, and first bearing positions first bearing by deep groove ball bearing snap ring and bearing plate,
Wherein, what deep groove ball bearing snap ring can be dismantled is embedded in the outer peripheral wall of input shaft front end and is supported with the front end of first bearing
It connects, bearing plate is fixed on gear box casing and is abutted with the rear end of first bearing.
3. the connection structure of new-energy automobile transmission input shaft and output shaft according to claim 1, which is characterized in that
Returning the car on the rear end of input shaft has gear.
4. the connection structure of new-energy automobile transmission input shaft and output shaft according to claim 3, which is characterized in that
If the rear end of input shaft also uniformly offers dry lube injection hole, the lubricating oil injection hole can be noted into second bearing
Enter lubricating oil.
5. the connection structure of new-energy automobile transmission input shaft and output shaft according to claim 1, which is characterized in that
The inner ring of cylindrical bearing is fixed at the front end of output shaft by cylindrical bearing snap ring.
6. the connection structure of new-energy automobile transmission input shaft and output shaft according to claim 1, which is characterized in that
The inner ring of cylindrical bearing and the axial plane of output shaft are interference fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820236005.8U CN207864583U (en) | 2018-02-09 | 2018-02-09 | The connection structure of new-energy automobile transmission input shaft and output shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820236005.8U CN207864583U (en) | 2018-02-09 | 2018-02-09 | The connection structure of new-energy automobile transmission input shaft and output shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207864583U true CN207864583U (en) | 2018-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820236005.8U Active CN207864583U (en) | 2018-02-09 | 2018-02-09 | The connection structure of new-energy automobile transmission input shaft and output shaft |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360302A (en) * | 2019-06-10 | 2019-10-22 | 浙江吉利控股集团有限公司 | A kind of support construction of transmission shaft |
| CN111412266A (en) * | 2020-03-26 | 2020-07-14 | 东风汽车集团有限公司 | Mounting structure suitable for hybrid transmission motor gear shaft |
-
2018
- 2018-02-09 CN CN201820236005.8U patent/CN207864583U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360302A (en) * | 2019-06-10 | 2019-10-22 | 浙江吉利控股集团有限公司 | A kind of support construction of transmission shaft |
| CN111412266A (en) * | 2020-03-26 | 2020-07-14 | 东风汽车集团有限公司 | Mounting structure suitable for hybrid transmission motor gear shaft |
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