CN107627904B - Differential adjusting device - Google Patents
Differential adjusting device Download PDFInfo
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- CN107627904B CN107627904B CN201710881153.5A CN201710881153A CN107627904B CN 107627904 B CN107627904 B CN 107627904B CN 201710881153 A CN201710881153 A CN 201710881153A CN 107627904 B CN107627904 B CN 107627904B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/84—Data processing systems or methods, management, administration
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Abstract
The invention relates to the field of electric automobile manufacturing, in particular to a differential adjusting device which comprises a transmission device and a sealing device, wherein the sealing device is arranged on two sides of the transmission device, the transmission device comprises at least one first layer sleeve, at least one second layer sleeve, at least one arc-shaped key, at least four damping blocks, at least one third layer sleeve and at least one flat key, the second layer sleeve is sleeved outside the first layer sleeve, a connecting port is formed in the middle of the second layer sleeve, one end of the arc-shaped key is fixedly connected to the middle of the first layer sleeve, the other end of the arc-shaped key is arranged in the connecting port of the second layer sleeve in a cantilever mode, the four damping blocks are arranged in the connecting port of the second layer sleeve and distributed on two sides of the arc-shaped key, the third layer sleeve is sleeved outside the second layer sleeve, and the third layer sleeve is fixedly. Compared with the prior art, the differential speed adjusting device has the advantages of optimized structure, low energy consumption, low abrasion, low cost and good assembly performance, thereby having wide market application prospect.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of electric automobile manufacturing, in particular to a differential adjusting device.
[ background of the invention ]
At present, the differential control method of the electric automobile comprises the steps of regulating the braking torque of a driving wheel through a control system and controlling a mechanical differential.
The control system has a great problem in the reality of adjusting the braking torque of the driving wheel, and the complexity and the burstiness of the road surface in the driving process determine that the control system has higher refinement degree and extremely high response speed. At present, the controller on the market is difficult to achieve the degree.
The control of the mechanical differential also has some problems, the control of the existing differential has large energy consumption, large volume, large abrasion and large rigid impact, and the application range of the existing differential in the electric automobile is limited.
[ summary of the invention ]
In order to overcome the problems, the invention provides a differential speed adjusting device which is optimized in structure, reduced in energy consumption and rigid impact and good in assembling performance.
The invention provides a technical scheme for solving the technical problems, which comprises the following steps: provides a differential adjusting device which is arranged between an automobile hub and a hub motor and is used for adjusting the rotating speed difference between the hub and the motor, and comprises a transmission device and sealing devices, wherein the sealing devices are arranged at two sides of the transmission device and are used for sealing the transmission device, play the guard action to transmission simultaneously, transmission includes an at least first layer cover, an at least second floor cover, an at least arc key, four damping piece at least, an at least third floor cover and an at least flat key, outside first floor cover was located to second floor cover, the connector is seted up at second floor cover middle part, arc key one end fixed connection is in first floor cover middle part, the other end is encorbelmented and is set up in second floor cover interface, four damping piece set up in second floor cover interface, distribute in the arc key both sides, outside second floor cover was located to third floor cover, third floor cover and second floor cover pass through flat key fixed connection.
Preferably, the sealing device includes an inner bearing shell, an outer bearing shell, at least two sealing washers, an outer end cover, a plurality of screws, an inner end cover and at least one water seal, the inner bearing shell and the outer bearing shell are respectively disposed between two ends of the second layer sleeve and the first layer sleeve for fixedly supporting the second layer sleeve and the first layer sleeve, two ends of the third layer sleeve are respectively provided with a sealing washer for enhancing the sealing effect, the outer end cover and the inner end cover are fixedly connected to two ends of the third layer sleeve through a plurality of screws, the outer end cover and the inner end cover are disposed outside the sealing washers, and the water seal is disposed between the inner end cover and the inner bearing shell.
Preferably, the first layer of sleeve is connected with the motor, and the third layer of sleeve is connected with the wheel hub.
Preferably, the screw is a socket head cap screw.
Compared with the prior art, the differential speed adjusting device comprises a transmission device and sealing devices, wherein the sealing devices are arranged on two sides of the transmission device and are used for sealing the transmission device and protecting the transmission device; the second layer is sleeved outside the first layer sleeve, a connecting port is formed in the middle of the second layer sleeve, one end of an arc-shaped key is fixedly connected to the middle of the first layer sleeve, the other end of the arc-shaped key is arranged in the connecting port of the second layer sleeve in an overhanging manner, four damping blocks are arranged in the connecting port of the second layer sleeve and distributed on two sides of the arc-shaped key, the third layer sleeve is arranged outside the second layer sleeve, the third layer sleeve and the second layer sleeve are fixedly connected through a flat key, the first layer sleeve is connected with a motor output shaft through a spline, and the third layer sleeve is connected with a wheel hub through a bolt; when the automobile runs, the motor rotates to drive the first layer sleeve to rotate, the arc-shaped key rotates along with the first layer sleeve, the damping block is compressed, when the torque of the motor is smaller than the set torque of the damping block, the damping block drives the second layer sleeve to rotate, the third layer sleeve drives the tire to rotate, when the road condition is complex, the friction force met by one tire is increased, the corresponding tire speed is reduced and is smaller than the speeds of other tires, at the moment, the speed of the automobile is higher than the speed of the automobile, the automobile drives the tire to rotate, the rotating speed of the tire is higher than the rotating speed of the corresponding motor, the hub drives the third layer sleeve to rotate, the torque transmitted by the damping block is reduced until the speed of the tire is consistent with the speed of the motor, when the friction force met by one tire is reduced, the corresponding tire speed is increased, the rotating speed of the tire is higher than the rotating speed of the motor, and the torque transmitted, the speed of the corresponding tire is gradually reduced until the rotating speed of the tire is consistent with that of the motor, the problem of high rigid impact can be effectively relieved, the service life is prolonged, the assembly performance is improved, the differential speed adjustment response is fast, the energy consumption is low, the abrasion is low, the vibration impact is small, the impact is not influenced by the rotating speed of the engine, the cost is low, the processing is easy, and the market prospect is wide.
[ description of the drawings ]
Fig. 1 is an exploded view of a differential adjusting apparatus according to the present invention;
FIG. 2 is a 3d sectional structural view of a differential adjusting apparatus according to the present invention;
fig. 3 is a sectional plan view of a differential adjusting apparatus according to the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that all directional indications (such as up, down, left, right, front, and back … …) in the embodiments of the present invention are limited to relative positions on a given view, not absolute positions.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Referring to fig. 1 to 3, the differential adjusting device of the present invention is installed between an automobile hub and a hub motor, and is used for adjusting a rotational speed difference between the hub and the hub motor. The transmission device comprises at least one first layer sleeve 1, at least one second layer sleeve 2, at least one arc-shaped key 5, at least four damping blocks 6, at least one third layer sleeve 7 and at least one flat key 12. Outside first layer cover 1 was located to second layer cover 2 cover, the connector was seted up at second layer cover 2 middle part, and 5 one end fixed connection of arc key set in first layer cover 1 middle part, the other end was encorbelmented and is set up in second layer cover 2 connector. Four damping blocks 6 are arranged in the connecting port of the second layer sleeve 2 and distributed on two sides of the arc-shaped key 5. The third layer of sleeve 7 is sleeved outside the second layer of sleeve 2, and the third layer of sleeve 7 is fixedly connected with the second layer of sleeve 2 through a flat key 12. The first layer sleeve 1 is connected with the output shaft of the motor through a spline, and the third layer sleeve 7 is connected with the hub through a bolt. The sealing device comprises an inner bearing bush 3, an outer bearing bush 4, at least two sealing washers 8, an outer end cover 9, a plurality of screws 10, an inner end cover 11 and at least one water seal 13. The inner bearing bush 3 and the outer bearing bush 4 are respectively arranged between the two ends of the second layer sleeve 2 and the first layer sleeve 1 and are used for fixedly supporting the second layer sleeve 2 and the first layer sleeve 1. And two ends of the third layer sleeve 7 are respectively provided with a sealing gasket 8 for enhancing the sealing effect. The outer end cap 9 and the inner end cap 11 are fixedly connected to two ends of the third layer sleeve 7 through a plurality of screws 10, and the outer end cap 9 and the inner end cap 11 are arranged outside the sealing washer 8. The water seal 13 is disposed between the inner end cap 11 and the inner bearing 3 for water-proof. The screw 10 is a socket head cap screw.
When the automobile runs, the motor rotates to drive the first layer sleeve 1 to rotate, the arc-shaped key 5 rotates along with the first layer sleeve, the damping block 6 is compressed, when the torque of the motor is smaller than the torque set by the damping block 6, the damping block 6 drives the second layer sleeve 2 to rotate, and meanwhile, the third layer sleeve 7 drives the tire to rotate. When the road surface condition is complicated, the friction force met by one of the tires is increased, the corresponding tire speed is reduced and is smaller than the speeds of other tires, at the moment, the speed of the automobile is larger than the speed for driving the tire, the automobile drives the tire to rotate, the rotating speed of the tire is larger than the rotating speed of the corresponding motor, the hub drives the third layer sleeve 7 to rotate, and meanwhile, the torque transmitted by the damping block 6 is reduced until the speed of the tire is consistent with the speed of the motor. When the friction force encountered by one of the tires is reduced, the corresponding tire speed is increased, the rotating speed of the tire is greater than that of the motor, the torque transmitted to the tire by the damping block 6 is gradually reduced, and the corresponding tire speed is gradually reduced until the rotating speed of the tire is consistent with that of the motor.
Compared with the prior art, the differential speed adjusting device comprises a transmission device and sealing devices, wherein the sealing devices are arranged on two sides of the transmission device and are used for sealing the transmission device and protecting the transmission device; the second layer sleeve 2 is sleeved outside the first layer sleeve 1, a connecting port is formed in the middle of the second layer sleeve 2, one end of an arc-shaped key 5 is fixedly connected to the middle of the first layer sleeve 1, the other end of the arc-shaped key is arranged in the connecting port of the second layer sleeve 2 in an overhanging manner, four damping blocks 6 are arranged in the connecting port of the second layer sleeve 2 and distributed on two sides of the arc-shaped key 5, the third layer sleeve 7 is sleeved outside the second layer sleeve 2, the third layer sleeve 7 is fixedly connected with the second layer sleeve 2 through a flat key 12, the first layer sleeve 1 is connected with a motor output shaft through a spline, and the third layer sleeve 7 is connected with a hub through a bolt, so that the structure is optimized; when the automobile runs, the motor rotates to drive the first layer sleeve 1 to rotate, the arc-shaped key 5 rotates along with the first layer sleeve, the damping block 6 is compressed, when the torque of the motor is smaller than the torque set by the damping block 6, the damping block 6 drives the second layer sleeve 2 to rotate, meanwhile, the third layer sleeve 7 drives the tire to rotate, when the road conditions are complex, the friction force encountered by one tire is increased, the corresponding tire speed is reduced and is smaller than the speeds of other tires, at the moment, the speed of the automobile is higher than the speed for driving the tire, the automobile drives the tire to rotate, the rotating speed of the tire is higher than the rotating speed of the corresponding motor, the hub drives the third layer sleeve 7 to rotate, the torque transmitted by the damping block 6 is reduced, until the speed of the tire is consistent with the speed of the motor, when the friction force encountered by one tire is reduced, the corresponding tire speed is increased, and the rotating speed of the tire is, the torque transmitted to the tire by the damping block 6 is gradually reduced, the speed of the corresponding tire is gradually reduced until the rotating speed of the tire is consistent with that of the motor, the problem of high rigid impact can be effectively solved, the service life is prolonged, the assembly performance is improved, the differential speed adjustment response is fast, the energy consumption is low, the abrasion is small, the vibration impact is small, the engine rotating speed is not influenced, the cost is low, the processing is easy, and therefore the market prospect is wide.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit of the present invention should be included in the scope of the present invention.
Claims (4)
1. The utility model provides a differential adjusting device, installs between automobile wheel hub and wheel limit motor for adjust wheel hub and the difference of motor rotation speed, its characterized in that: the sealing device is arranged on two sides of the transmission device and used for sealing the transmission device and protecting the transmission device;
the transmission device comprises at least one first layer sleeve, at least one second layer sleeve, at least one arc key, at least four damping blocks, at least one third layer sleeve and at least one flat key, the second layer sleeve is arranged outside the first layer sleeve, the middle part of the second layer sleeve is provided with a connector, one end of the arc key is fixedly connected to the middle part of the first layer sleeve, the other end of the arc key is cantilevered to be arranged in the second layer sleeve connector, the four damping blocks are arranged in the second layer sleeve connector, the damping blocks are distributed on two sides of the arc key, the third layer sleeve is arranged outside the second layer sleeve, and the third layer sleeve is fixedly connected with the second layer sleeve through the flat keys.
2. The differential speed adjusting device according to claim 1, wherein the sealing device comprises an inner bearing shell, an outer bearing shell, at least two sealing washers, an outer end cover, a plurality of screws, an inner end cover and at least one water seal, the inner bearing shell and the outer bearing shell are respectively disposed between two ends of the second layer sleeve and two ends of the first layer sleeve for fixedly supporting the second layer sleeve and the first layer sleeve, two ends of the third layer sleeve are respectively provided with a sealing washer for enhancing the sealing effect, the outer end cover and the inner end cover are fixedly connected to two ends of the third layer sleeve through a plurality of screws, the outer end cover and the inner end cover are disposed outside the sealing washers, and the water seal is disposed between the inner end cover and the inner bearing shell.
3. A differential speed adjustment device as claimed in claim 2 wherein said first layer of bushings are connected to the electric machine and said third layer of bushings are connected to the wheel hub.
4. A differential speed adjustment device as claimed in claim 3 wherein said screw is a socket head cap screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710881153.5A CN107627904B (en) | 2017-09-21 | 2017-09-21 | Differential adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710881153.5A CN107627904B (en) | 2017-09-21 | 2017-09-21 | Differential adjusting device |
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| Publication Number | Publication Date |
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| CN107627904A CN107627904A (en) | 2018-01-26 |
| CN107627904B true CN107627904B (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710881153.5A Active CN107627904B (en) | 2017-09-21 | 2017-09-21 | Differential adjusting device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3814222A (en) * | 1973-01-29 | 1974-06-04 | Gen Motors Corp | Differential and brake assembly with parking brake for differential outputs |
| US6046518A (en) * | 1999-01-21 | 2000-04-04 | Williams; Malcolm R. | Axial gap electrical machine |
| WO2011065936A1 (en) * | 2009-11-24 | 2011-06-03 | Navistar Canada, Inc. | Independent dual wheel tractor drive |
| CN103273839A (en) * | 2013-06-02 | 2013-09-04 | 十堰鸿孝电动车桥有限公司 | Integrated drive front axle assembly for electric vehicles |
| CN103386881A (en) * | 2012-05-07 | 2013-11-13 | 卢茂高 | Electric automobile wheels and automobile axle without differential |
| CN105667579A (en) * | 2016-03-03 | 2016-06-15 | 西安工业大学 | Differential steering system for hub motor driving electric automobile and electric automobile |
| CN206049354U (en) * | 2016-09-09 | 2017-03-29 | 陕西理工学院 | The driving means of AC servo direct-driving type pure electric automobile |
-
2017
- 2017-09-21 CN CN201710881153.5A patent/CN107627904B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3814222A (en) * | 1973-01-29 | 1974-06-04 | Gen Motors Corp | Differential and brake assembly with parking brake for differential outputs |
| US6046518A (en) * | 1999-01-21 | 2000-04-04 | Williams; Malcolm R. | Axial gap electrical machine |
| WO2011065936A1 (en) * | 2009-11-24 | 2011-06-03 | Navistar Canada, Inc. | Independent dual wheel tractor drive |
| CN103386881A (en) * | 2012-05-07 | 2013-11-13 | 卢茂高 | Electric automobile wheels and automobile axle without differential |
| CN103273839A (en) * | 2013-06-02 | 2013-09-04 | 十堰鸿孝电动车桥有限公司 | Integrated drive front axle assembly for electric vehicles |
| CN105667579A (en) * | 2016-03-03 | 2016-06-15 | 西安工业大学 | Differential steering system for hub motor driving electric automobile and electric automobile |
| CN206049354U (en) * | 2016-09-09 | 2017-03-29 | 陕西理工学院 | The driving means of AC servo direct-driving type pure electric automobile |
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| CN107627904A (en) | 2018-01-26 |
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