CN213541194U - High-rotating-speed gearbox for automobile gearbox test - Google Patents
High-rotating-speed gearbox for automobile gearbox test Download PDFInfo
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- CN213541194U CN213541194U CN202021758981.3U CN202021758981U CN213541194U CN 213541194 U CN213541194 U CN 213541194U CN 202021758981 U CN202021758981 U CN 202021758981U CN 213541194 U CN213541194 U CN 213541194U
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Abstract
The utility model relates to a high-speed gearbox for automobile gearbox test, which comprises a box body; the box body is provided with a low-speed shaft gear component, a middle shaft gear component and a high-speed shaft gear component; the high-speed shaft gear assembly is provided with a flange plate at the extending end of the box body; the output end of the high-speed shaft gear assembly is provided with an annular positioning cover; the maximum size of the central line of the high-speed shaft gear assembly from the side surface of the box body is not more than 110 mm. Its advantages are: the utility model relates to a high rotational speed gear box is used in motor transmission is experimental, this gear box when having satisfied the acceleration rate requirement of specific velocity ratio, has still reached the requirement that test bench high-speed shaft central line is no longer than 110mm apart from gear box side maximum dimension and the requirement of disposing annular position cover at the output. And the problems of the rotating speed of the service life of the rolling bearing, the internal heating of the gear box, the overhigh pressure of the gear box, the oil leakage caused by air fluid and the like are solved.
Description
Technical Field
The utility model belongs to the technical field of the gear box technique and specifically relates to a high rotational speed gear box is used in motor transmission test.
Background
Gearboxes are one of the main components of automotive transmission systems. The actual use conditions of the automobile are very complicated, such as starting, idling stop, low-speed or high-speed running, acceleration, deceleration, climbing, backing and the like, so that the driving force and the speed of the automobile are required to be changed in a considerable range, and the output torque and the rotating speed of the piston engine which is widely adopted at present are relatively small in change range. In order to adapt to the frequently changing driving conditions and simultaneously enable the engine to work with higher power and lower oil consumption under favorable working conditions, a gear box is arranged in the transmission system.
However, the gearboxes used in the prior art for motor vehicles have the following drawbacks and disadvantages:
the automobile gearbox test bed needs the center line of the output high-speed shaft of the gearbox not to exceed 110mm from the maximum size of the side face of the gearbox due to the center distance of the tested gearbox. And the output end of the gear box needs to be matched with an annular positioning cover, so that the output end becomes small in space, compact in structure and complex. The rotating speed of the high-speed shaft is high, and the corresponding service life of the rolling bearing is required to be met. Then the problems of heat generation in the gear box, overhigh pressure of the gear box, oil leakage caused by air fluid and the like,
chinese patent document CN201220143564.7, application date 20120407, with patent names: electric automobile gearbox discloses an electric automobile gearbox, includes: the box, be equipped with height in the box and keep off gearshift and reverse gear gearshift, parallel arrangement's first transmission shaft and second transmission shaft are installed to the box internal rotation, it keeps off gear and reverse gear to be equipped with to go forward near the output in the first transmission shaft, it is equipped with the driving gear to be close to the input in the first transmission shaft, fixed mounting has the transition axle in the box, transition axle and first transmission shaft parallel arrangement and transition epaxial rotation install transition gear, transition gear is located between reverse gear and the third driven gear and with reverse gear and the equal meshing of third driven gear, sliding mounting has the second synchronizer between the gear that keeps off and the reverse gear, reverse gear gearshift is connected to the second synchronizer.
The electric vehicle transmission disclosed in the patent document is easy and free to shift, and the manufacturing cost of an electric vehicle is reduced. However, no corresponding disclosure is found about a technical solution for providing a reliable and stable step-up transmission device for a vehicle transmission test stand.
In view of the foregoing, there is a need for a reliable and stable step-up gear box for a vehicle transmission test stand, and no report on such a gear box is available.
Disclosure of Invention
The utility model aims at providing a provide a gearbox that provides a reliable, stable acceleration rate transmission for the motor transmission test bench.
In order to achieve the purpose, the utility model adopts the technical proposal that:
a high-rotating-speed gearbox for an automobile gearbox test comprises a box body; the box body is provided with a low-speed shaft gear component, a middle shaft gear component and a high-speed shaft gear component; a first aligning roller bearing is arranged at the joint of the low-speed shaft gear assembly and the box body; a first end cover is arranged on the outer side of the first self-aligning roller bearing; a first adjusting pad is arranged at the joint of the first end cover and the low-speed shaft gear assembly; the low-speed shaft gear assembly is provided with a first gear; the intermediate shaft gear assembly is provided with a second gear which is meshed with the first gear; a second self-aligning roller bearing is arranged at the joint of the intermediate shaft assembly and the box body; a second end cover is arranged on the outer side of the second self-aligning roller bearing; a second adjusting pad is arranged at the joint of the second end cover and the low-custom shaft gear assembly; the other end of the high-speed shaft gear component is provided with a distance ring; a third end cover is arranged at the outer edge of the spring; the high-speed shaft gear assembly is provided with a flange plate at the extending end of the box body; the output end of the high-speed shaft gear assembly is provided with an annular positioning cover; the maximum size of the central line of the high-speed shaft gear assembly from the side surface of the box body is not more than 110 mm.
As a preferable technical scheme, the annular positioning cover is fan-shaped and is provided with a notch.
As a preferable technical scheme, the second end cover adopts a concave mounting mode.
As a preferable technical scheme, a stepped bearing hole is adopted at the position of the third end cover.
As a preferable technical scheme, a torque sensor is arranged on the annular positioning cover.
As a preferable technical scheme, the gear box adopts a forced lubrication mode, and an oil baffle plate is arranged inside the gear box.
As a preferable technical proposal, a ventilation cap is arranged below the box body.
As a preferred technical scheme, a bracket is arranged on the box body; the bracket is provided with a torque sensor.
As a preferred technical scheme, the gearbox is provided with an oil inlet and an oil outlet, and the gearbox is also provided with an independent rare station.
As a preferable technical scheme, a first oil slinger is arranged at the position where the low-speed shaft gear assembly extends out of the box body; and a second oil throwing cup is arranged at the position where the high-speed shaft gear piece extends out of the box body.
The utility model has the advantages that:
1. the utility model relates to a high rotational speed gear box is used in motor transmission is experimental, this gear box when having satisfied the acceleration rate requirement of specific velocity ratio, has still reached the requirement that test bench high-speed shaft central line is no longer than 110mm apart from gear box side maximum dimension and the requirement of disposing annular position cover at the output. And the problems of the rotating speed of the service life of the rolling bearing, the internal heating of the gear box, the overhigh pressure of the gear box, the oil leakage caused by air fluid and the like are solved.
2. The annular positioning cover is fixed on the box body, and under a test state, a tested piece is fixed on the annular positioning cover through an end face bolt. The spigot of the annular positioning cover after the weight is hung and the coaxiality of the axial lead of the output shaft.
3. The testing device is provided with an annular positioning cover, the annular positioning cover is fixed on the box body, and a tested piece is fixed on the annular positioning cover through an end face bolt in a testing state. The spigot of the annular positioning cover after the weight is hung and the coaxiality of the axial lead of the output shaft.
4. The gearbox is a motor speed increaser used for an automobile gearbox test bed, the gearbox is accelerated in 2 levels, and the total speed ratio is about 6. Maximum input speed 2500rpm, maximum input torque 1400N.m, corresponding maximum output speed 15000rpm, maximum output torque 230 N.m.
Drawings
Fig. 1 is the utility model discloses a high rotational speed gear box's for motor transmission is experimental structure schematic diagram.
Figure 2 is a side schematic view of the gearbox of the present invention.
Detailed Description
The invention will be further described with reference to the following examples and with reference to the accompanying drawings.
The reference numerals and components referred to in the drawings are as follows:
1. a first oil throwing cup 2 and a first end cover
3. First adjusting pad 4, first self-aligning roller bearing
5. Low speed shaft gear assembly 6 intermediate shaft gear assembly
7. Second self-aligning roller bearing 8, adjusting pad
9. Second end cap 10. ultra-precision bearing
11. High speed shaft gear assembly 12, distance ring
13. Spring 14. third end cap
15. A second oil slinger 16. a flange plate
17. Annular positioning cover 18, support
19. Oil inlet 20. oil return port
Referring to fig. 1, fig. 1 is a schematic structural diagram of a high-speed gearbox for an automobile transmission test according to the present invention. A high-rotation-speed gearbox for an automobile gearbox test; the speed change gearbox comprises a box body (not shown in the figure); the box body is provided with a low-speed shaft gear component 5, a middle shaft gear component 6 and a high-speed shaft gear component 11; a first aligning roller bearing 4 is arranged at the joint of the low-speed shaft gear assembly 5 and the box body; a first end cover 2 is arranged on the outer side of the first self-aligning roller bearing 4; a first adjusting pad 83 is arranged at the joint of the first end cover 2 and the low-speed shaft gear assembly 5; the low-speed shaft gear assembly 5 is provided with a first gear.
The intermediate shaft gear assembly 6 is provided with a second gear which is meshed with the first gear; a second self-aligning roller bearing 7 is arranged at the joint of the intermediate shaft assembly and the box body; a second end cover 9 is arranged on the outer side of the second self-aligning roller bearing 7; and a second adjusting pad 8 is arranged at the joint of the second end cover 9 and the lower shaft gear assembly.
An ultra-precise bearing 10 is arranged at the joint of one end of the high-speed shaft gear component 11 and the box body, and the ultra-precise bearing 10 is provided with a spring 13; the other end of the high-speed shaft gear component 11 is provided with a distance ring 12; a third end cover 14 is arranged at the outer edge of the spring 13; a flange plate 16 is arranged on the end surface of the third end cover 14; the output end of the high-speed shaft gear assembly 11 is provided with an annular positioning cover 17; the maximum size of the central line of the high-speed shaft gear assembly 11 from the side surface of the box body is not more than 110 mm.
A first oil throwing cup 1 is arranged at the position where the low-speed shaft gear assembly 5 extends out of the box body; and a second oil throwing cup 15 is arranged at the position where the high-speed shaft gear piece extends out of the box body.
Referring to fig. 2, fig. 2 is a schematic side view of the gear box of the present invention. The box body is provided with a bracket 18; a torque sensor is arranged on the bracket 18; the gearbox is provided with an oil inlet 19 and an oil outlet, and the gearbox is also provided with an independent rare station.
The embodiment needs to be explained as follows:
be equipped with annular positioning cover 17, and annular positioning cover 17 fixes on the box, under experimental state, is fixed on annular positioning cover 17 through the terminal surface bolt by the test piece. The spigot of the annular positioning cover 17 after being hung with weight and the coaxiality of the axial lead of the output shaft.
The annular positioning cover 17 is fan-shaped and is provided with a notch. The effect of this design is: the annular cover is made into a fan shape under the condition that the size of the annular cover is 110mm, and a gap is reserved below the annular cover to provide the installation space of the torque sensor.
The second end cap 9 is mounted in a concave manner. Wherein, adopt the mounting means of indent for the installation face of annular positioning cover 17 can hug closely the box bearing frame.
And a stepped bearing hole is adopted at the position of the third end cover 14. Wherein the axial mounting dimension of the flange 16 can be reduced by the design of the stepped bearing hole.
The annular positioning cover 17 is provided with a torque sensor. The stator of the torque sensor is fixedly arranged on the bracket 18, so that the mounting precision of the torque sensor is ensured.
The gear box adopts a forced lubrication mode, and an oil baffle plate is arranged inside the gear box. The gear box adopts forced lubrication, and the lower box body can store a part of oil mass, so an oil baffle plate is preset below the gear in the box body, and excessive oil mist generated by two stages of high-speed rotating gears during rotation is avoided, so that the heat generated in the gear box is reduced, and the oil leakage of a ventilation cap and a sealing part is reduced.
And a ventilation cap is arranged below the box body. The ventilation cap is arranged above the box body, so that the internal pressure of the box body is reduced, and oil leakage caused by inconsistent internal and external pressures is avoided.
The gearbox is provided with an oil inlet 19 and an oil outlet, and the gearbox is also provided with an independent rare station. The effect of this design is: an independent thin oil station is placed beside the gear box, oil is fed into the gear box through an oil inlet 19 to perform forced lubrication on the gear pair and the bearing, and oil is returned through an oil return port 20 to ensure that the gear pair and the bearing are sufficiently lubricated.
The utility model relates to a high rotational speed gear box is used in motor transmission is experimental, this gear box when having satisfied the acceleration rate requirement of specific velocity ratio, has still reached the requirement that test bench high-speed shaft central line is no longer than 110mm apart from gear box side maximum dimension and the requirement of configuring annular position cover 17 at the output. And the problems of the rotating speed of the service life of the rolling bearing, the internal heating of the gear box, the overhigh pressure of the gear box, the oil leakage caused by air fluid and the like are solved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and additions can be made without departing from the principles of the present invention, and these improvements and additions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A high-rotation-speed gearbox for an automobile gearbox test is characterized by comprising a box body; the box body is provided with a low-speed shaft gear component, a middle shaft gear component and a high-speed shaft gear component; a first aligning roller bearing is arranged at the joint of the low-speed shaft gear assembly and the box body; a first end cover is arranged on the outer side of the first self-aligning roller bearing; a first adjusting pad is arranged at the joint of the first end cover and the low-speed shaft gear assembly; the low-speed shaft gear assembly is provided with a first gear; the intermediate shaft gear assembly is provided with a second gear which is meshed with the first gear; a second self-aligning roller bearing is arranged at the joint of the intermediate shaft assembly and the box body; a second end cover is arranged on the outer side of the second self-aligning roller bearing; a second adjusting pad is arranged at the joint of the second end cover and the low-custom shaft gear assembly; an ultra-precise bearing is arranged at the joint of one end of the high-speed shaft gear assembly and the box body, and the ultra-precise bearing is provided with a spring; the other end of the high-speed shaft gear component is provided with a distance ring; a third end cover is arranged at the outer edge of the spring; the high-speed shaft gear assembly is provided with a flange plate at the extending end of the box body; the output end of the high-speed shaft gear assembly is provided with an annular positioning cover; the maximum size of the central line of the high-speed shaft gear assembly from the side surface of the box body is not more than 110 mm.
2. The high-speed gearbox for automobile gearbox tests as recited in claim 1, wherein said annular retaining cap is fan-shaped and provided with notches.
3. The high-speed gearbox for automobile gearbox tests as recited in claim 1, wherein said second end cap is recessed.
4. The high-speed gearbox for automobile gearbox tests as recited in claim 1, wherein a stepped bearing hole is adopted at said third end cover position.
5. The high-speed gearbox for automobile gearbox tests as recited in claim 1, wherein said annular alignment cover is provided with a torque sensor.
6. The high-speed gearbox for automobile gearbox tests as recited in claim 1, wherein said gearbox is in a forced lubrication manner and is provided with an oil baffle inside.
7. The high-speed gearbox for automobile gearbox tests as recited in claim 1, wherein a vent cap is mounted below said casing.
8. The high-speed gearbox for the automobile gearbox test according to claim 1, wherein a bracket is arranged on the box body; the bracket is provided with a torque sensor.
9. The high-rotation-speed gearbox for the automobile gearbox test according to claim 1, wherein an oil inlet and an oil outlet are formed in the gearbox, and an independent rare station is further arranged on the gearbox.
10. The high-speed gearbox for the automobile gearbox test according to claim 1, wherein a first oil slinger is arranged at the position where the low-speed shaft gear assembly extends out of the box body; and a second oil throwing cup is arranged at the position where the high-speed shaft gear piece extends out of the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021758981.3U CN213541194U (en) | 2020-08-21 | 2020-08-21 | High-rotating-speed gearbox for automobile gearbox test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021758981.3U CN213541194U (en) | 2020-08-21 | 2020-08-21 | High-rotating-speed gearbox for automobile gearbox test |
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| Publication Number | Publication Date |
|---|---|
| CN213541194U true CN213541194U (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021758981.3U Active CN213541194U (en) | 2020-08-21 | 2020-08-21 | High-rotating-speed gearbox for automobile gearbox test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114894247A (en) * | 2022-04-21 | 2022-08-12 | 吉林大学 | Performance testing device and testing method for oil baffle disc inside gear box |
| CN117823604A (en) * | 2024-03-05 | 2024-04-05 | 湖南长航动力科技有限公司 | Gear box for directly mounting torque sensor at high-speed shaft end |
-
2020
- 2020-08-21 CN CN202021758981.3U patent/CN213541194U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114894247A (en) * | 2022-04-21 | 2022-08-12 | 吉林大学 | Performance testing device and testing method for oil baffle disc inside gear box |
| CN114894247B (en) * | 2022-04-21 | 2023-03-03 | 吉林大学 | Performance testing device and testing method for oil baffle disc in gear box |
| CN117823604A (en) * | 2024-03-05 | 2024-04-05 | 湖南长航动力科技有限公司 | Gear box for directly mounting torque sensor at high-speed shaft end |
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