CN112498473A - Electronic steering gear of commercial vehicle - Google Patents
Electronic steering gear of commercial vehicle Download PDFInfo
- Publication number
- CN112498473A CN112498473A CN202011548815.5A CN202011548815A CN112498473A CN 112498473 A CN112498473 A CN 112498473A CN 202011548815 A CN202011548815 A CN 202011548815A CN 112498473 A CN112498473 A CN 112498473A
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- Prior art keywords
- steering gear
- electronic steering
- meshing
- bidirectional piston
- worm
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- 230000002457 bidirectional effect Effects 0.000 claims description 38
- 238000007789 sealing Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 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
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0409—Electric motor acting on the steering column
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
- B62D15/021—Determination of steering angle
- B62D15/0215—Determination of steering angle by measuring on the steering column
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/04—Steering gears mechanical of worm type
- B62D3/10—Steering gears mechanical of worm type with worm engaging in sector or roller gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/043—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by clutch means between driving element, e.g. motor, and driven element, e.g. steering column or steering gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
- B62D6/001—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits the torque NOT being among the input parameters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a commercial vehicle electronic steering gear, which comprises an electronic steering gear body, wherein the electronic steering gear body is arranged on an automobile chassis; the electronic steering gear comprises a steering gear body, an electronic steering gear body and a steering gear box, wherein the electronic steering gear body comprises an adjusting base, a driving unit, an engaging shaft sleeve unit and an angle measuring device; generally, the invention can automatically control the steering wheel, and can timely remove the control of the steering wheel when an emergency occurs, thereby ensuring the driving safety of the vehicle.
Description
Technical Field
The invention belongs to the field of automatic driving of automobiles, and relates to a steering gear, in particular to an electronic steering gear of a commercial vehicle.
Background
Traffic is a big problem for mankind today in social development. Nowadays, the vehicle investment is gradually increased, and traffic accidents are increased every year. The driving safety of the vehicle is more and more emphasized. The research at the present stage mainly aims at auxiliary driving systems such as vehicle anti-collision early warning, vehicle active anti-collision technology and the like. Automatic driving of vehicles has been the ultimate goal of research. At present, some cars enter an experimental stage, such as automatic braking, lane keeping, automatic direction correction and other technologies are put into use, and electronic steering gear products of the cars are more mature. On large commercial vehicles, there is still a large gap in this technology. The invention relates to an electronic steering gear of a commercial vehicle, which can be matched with other auxiliary products and corresponding program algorithms to realize the automatic driving of a large commercial vehicle.
Disclosure of Invention
The invention aims to provide an electronic steering gear of a commercial vehicle, which can provide related original technology for controlling steering wheel control for automatic driving research of the commercial vehicle, manually or automatically releases control when emergency occurs in control, ensures the safety of the vehicle and has extremely high use value.
The purpose of the invention is realized as follows: a commercial vehicle electronic steering gear comprises an electronic steering gear body, wherein the electronic steering gear body is arranged on an automobile chassis, a steering gear pipe column is arranged on the automobile chassis, the steering gear pipe column penetrates through the electronic steering gear body, and an automobile steering wheel is arranged at the top of the steering gear pipe column; the electronic steering gear comprises a steering gear body, an electronic steering gear body and a steering gear box, wherein the electronic steering gear body comprises an adjusting base, a driving unit, an engaging shaft sleeve unit and an angle measuring device;
the bottom plate of the adjusting base is fixedly arranged on the automobile chassis, and the side plate of the adjusting base is connected with the driving shell of the driving unit through a fixing screw;
the driving unit comprises a driving shell, a worm and a worm wheel, wherein the worm shell is arranged outside the driving shell, the worm is arranged inside the worm shell through a bearing A, a servo motor is arranged on the worm shell, the servo motor is connected with the worm through a coupler, the worm wheel is arranged inside the driving shell through a bearing B, the worm wheel is in transmission connection with the worm, and inner engaging teeth A are arranged inside the worm wheel;
the meshing unit comprises an air cylinder, a bidirectional piston, a spring base and a rotating shaft, wherein the spring base is fixedly connected to the driving shell, the air cylinder and the spring are arranged on the upper portion of the spring base, the bidirectional piston is installed inside the air cylinder, the air cylinder is divided into an upper cavity and a lower cavity by the bidirectional piston, the spring is arranged in the lower cavity, the lower portion of the bidirectional piston is embedded into a worm wheel, a guide pad A is arranged at the contact position of the bidirectional piston and the spring base, the upper portion of the bidirectional piston penetrates out of an upper top plate of the air cylinder, a guide pad B is arranged at the contact position of the upper portion of the bidirectional piston and the air cylinder, and a sealing ring is arranged between a; the rotating shaft is arranged in the bidirectional piston, a needle bearing is arranged between the rotating shaft and the bidirectional piston, external meshing teeth A are arranged on the outer side of the bottom of the rotating shaft, internal meshing teeth B are arranged in the rotating shaft, the bottom of the rotating shaft is arranged in the worm wheel, a clamping groove is arranged at the top of the rotating shaft, and a clamp is arranged in the clamping groove; the top of the inner cavity of the cylinder is provided with a sealing gasket, the outer side surface of the top of the cylinder is provided with a ball groove, balls are arranged in the ball groove, the upper part of the ball groove is provided with a ball cover, and the upper part of the ball cover is provided with a retaining ring;
the meshing shaft sleeve unit comprises a meshing shaft sleeve, a clamping groove and external meshing teeth B, the external meshing teeth B are arranged on the outer side face of the meshing shaft sleeve, the clamping groove is formed in the top of the meshing shaft sleeve, the meshing shaft sleeve is fixedly arranged on the steering gear column, and the external meshing teeth B outside the meshing shaft sleeve are meshed with the internal meshing teeth B inside the rotating shaft;
the angle measuring device comprises a corner sensor and a sensor fixing frame, the sensor fixing frame is fixed on the upper portion of the air cylinder through a fixing screw, the corner sensor is installed on the sensor fixing frame, and the top of the meshing shaft sleeve is installed on the corner sensor.
The air cylinder lateral surface sets up air inlet, gas vent respectively, the upper portion cavity intercommunication in air inlet and the cylinder, the gas vent communicates with the lower part cavity in the cylinder, install the solenoid valve on the air inlet.
The external gear A is meshed with the internal gear A, the external gear B is meshed with the internal gear B, and the external gear A, the internal gear A, the external gear B and the internal gear B are all arc-surface teeth.
The bearing A is correspondingly provided with a bearing cover A, and the bearing B is correspondingly provided with a bearing cover B.
The ball cover is provided with a groove, and the buckle is arranged in the groove on the ball cover.
And a sealing gasket compression ring is arranged at the sealing gasket.
And the clamping groove at the top of the meshing shaft sleeve is clamped on the protruding position, corresponding to the clamping groove, on the corner sensor.
The inner side face of the bidirectional piston is provided with a circle of convex structures, the number of the needle roller bearings is two, one needle roller bearing is arranged above the convex structures of the bidirectional piston, and the other needle roller bearing is arranged below the convex structures of the bidirectional piston.
The invention has the following beneficial effects: firstly, the meshing shaft sleeve and the tubular column of the automobile steering wheel are fixed into a whole, and the meshing shaft sleeve can be directly manufactured into the tubular column of the steering wheel during later-stage mass production without later-stage additional installation. Secondly, the electronic steering gear body can rotate around the center of the rotating shaft, the inner meshing teeth contained in the rotating shaft can be meshed with the outer meshing teeth on the meshing shaft sleeve, and then the rotating shaft drives the meshing shaft sleeve and the steering wheel column to rotate together when rotating, so that the steering wheel is controlled to rotate. And thirdly, the external meshing teeth arranged at the lower end of the rotating shaft are meshed with the internal meshing teeth arranged inside the worm wheel, so that when the servo motor receives an instruction to rotate, the rotating quantity can be transmitted to the rotating shaft through the worm and the worm wheel. Fourthly, after the electronic steering gear body is installed on an automobile chassis, an air inlet on the air cylinder is connected to a vehicle-mounted air storage tank, the electromagnetic valve is in a closed state at ordinary times and stands by, once an emergency occurs, the electromagnetic valve is controlled to be opened through electric control or manual control, air in the air storage tank enters the air cylinder, the spring force is overcome by the action of air pressure, the air cylinder moves downwards to push the rotating shaft to move downwards, and the meshing shaft sleeve and the rotating shaft are separated; when the crisis state is relieved, the electromagnetic valve is controlled to exhaust by electric control or manual control, the cylinder is jacked up under the action of the restoring force of the spring, the rotating shaft moves upwards, and the meshing shaft sleeve and the rotating shaft are restored to the meshing state. Fifthly, the external gear A, the internal gear A, the external gear B and the internal gear B are all arc-surface gears, so that the meshing dead angle is reduced, and the safety of the device is improved.
Drawings
Fig. 1 is a schematic perspective view of an electronic steering gear box body mounted on an automobile chassis.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a schematic view of an assembly structure of the electronic steering gear box body.
Fig. 4 is a schematic longitudinal sectional view of the electric steering gear body.
Fig. 5 is an assembly structure diagram of the driving unit.
Fig. 6 is an assembly structure diagram of the engagement unit.
Fig. 7 is a schematic view of an assembled structure of the engaging boss unit.
Fig. 8 is an assembly structure diagram of the angle measuring device.
Fig. 9 is a schematic perspective view i of the rotating shaft.
Fig. 10 is a perspective view of the rotating shaft, schematically illustrating the structure ii.
Fig. 11 is a schematic sectional view of the rotary shaft.
FIG. 12 is a schematic front view of the inlet and outlet of the steering wheel body.
Fig. 13 is a perspective view of the ball cover.
In the figure: 1. the electronic steering gear comprises an electronic steering gear body 2, an automobile chassis 3, a steering gear column 4, an automobile steering wheel 5, an adjusting base 6, a driving unit 7, a meshing unit 8, a meshing shaft sleeve unit 9, an angle measuring device 10, a fixing screw 11, a driving shell 12, a worm 13, a worm wheel 14, a worm shell 15, a bearing A16, a servo motor 17, a coupler 18, a bearing B19, inner meshing teeth A20, a cylinder 21, a bidirectional piston 22, a spring 23, a spring base 24, a rotating shaft 25, a guide pad A26, a guide pad B27, a sealing ring 28, a needle bearing 29, outer meshing teeth A30, inner meshing teeth B31, a buckling groove 32, a buckle 33, a sealing pad 34, a ball groove 35, balls 36, a ball cover 37, a buckling ring 38, a meshing shaft sleeve 39, a clamping ring 36, The device comprises a clamping groove 40, external teeth B41, a rotation angle sensor 42, a sensor fixing frame 43, an air inlet 44, an air outlet 45, a bearing cover A46, a bearing cover B47, a groove 48 and a sealing gasket pressing ring.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1-13, an electronic steering gear for commercial vehicles comprises an electronic steering gear body 1, wherein the electronic steering gear body 1 is mounted on an automobile chassis 2, a steering gear column 3 is mounted on the automobile chassis 2, the steering gear column 3 penetrates through the electronic steering gear body 1, and an automobile steering wheel 4 is mounted at the top of the steering gear column 3; the electronic steering gear body 1 comprises an adjusting base 5, a driving unit 6, an engaging unit 7, an engaging shaft sleeve unit 8 and an angle measuring device 9, wherein the adjusting base 5 is installed on an automobile chassis 2 through a steering gear column 3, the driving unit 6 is installed on the adjusting base 5, the engaging unit 7 is installed on the driving unit 6, the engaging shaft sleeve unit 8 is installed on the engaging unit 7, and the angle measuring device 9 is connected with the engaging shaft sleeve unit 8;
the bottom plate of the adjusting base 5 is fixedly arranged on the automobile chassis 2, and the side plate of the adjusting base 5 is connected with the driving shell 11 of the driving unit 6 through a fixing screw 10;
the driving unit 6 comprises a driving shell 11, a worm 12 and a worm wheel 13, wherein the worm shell 14 is arranged outside the driving shell 11, the worm 12 is installed inside the worm shell 14 through a bearing A15, a servo motor 16 is installed on the worm shell 14, the servo motor 16 is connected with the worm 12 through a coupling 17, the worm wheel 13 is installed inside the driving shell 11 through a bearing B18, the worm wheel 13 is in transmission connection with the worm 12, and inner meshing teeth A19 are arranged inside the worm wheel 13;
the meshing unit 7 comprises a cylinder 20, a bidirectional piston 21, a spring 22, a spring base 23 and a rotating shaft 24, wherein the spring base 23 is fixedly connected to the driving shell 11, the cylinder 20 and the spring 22 are arranged on the upper portion of the spring base 23, the bidirectional piston 21 is installed inside the cylinder 20, the cylinder is divided into an upper cavity and a lower cavity by the bidirectional piston 21, the spring 22 is arranged in the lower cavity, the lower portion of the bidirectional piston 21 is embedded into the worm wheel 13, a guide pad A25 is arranged at the contact position of the bidirectional piston 21 and the spring base 23, the upper portion of the bidirectional piston 21 penetrates through the upper top plate of the cylinder 20, a guide pad B26 is arranged at the contact position of the upper portion of the bidirectional piston 21 and the cylinder 20, and a sealing ring 27 is arranged between the middle plug body of the bidirectional piston 21 and; the rotating shaft 24 is installed in the bidirectional piston 21, a needle bearing 28 is arranged between the rotating shaft 24 and the bidirectional piston 21, an external tooth A29 is arranged outside the bottom of the rotating shaft 24, an internal tooth B30 is arranged inside the rotating shaft 24, the bottom of the rotating shaft 24 is installed in the worm wheel 13, a buckling groove 31 is arranged on the top of the rotating shaft 24, and a buckle 32 is installed in the buckling groove 31; a sealing gasket 33 is arranged at the top of the inner cavity of the cylinder 20, a ball groove 34 is arranged on the outer side surface of the top of the cylinder 20, a ball 35 is arranged in the ball groove 34, a ball cover 36 is arranged at the upper part of the ball groove 34, and a retaining ring 37 is arranged at the upper part of the ball cover 36;
the meshing shaft sleeve unit 8 comprises a meshing shaft sleeve 38, a clamping groove 39 and external meshing teeth B40, the external meshing teeth B40 are arranged on the outer side face of the meshing shaft sleeve 38, the clamping groove 39 is arranged at the top of the meshing shaft sleeve 38, the meshing shaft sleeve 38 is fixedly arranged on the steering column 3, and the external meshing teeth B40 outside the meshing shaft sleeve are meshed with the internal meshing teeth B30 inside the rotating shaft 24;
the angle measuring device 9 comprises a rotation angle sensor 41 and a sensor fixing frame 42, the sensor fixing frame 42 is fixed on the upper portion of the air cylinder 20 through a fixing screw 10, the rotation angle sensor 41 is installed on the sensor fixing frame 42, and the top of the meshing shaft sleeve 38 is installed on the rotation angle sensor 41.
The outer side surface of the cylinder 20 is respectively provided with an air inlet 43 and an air outlet 44, the air inlet 43 is communicated with an upper cavity in the cylinder 20, the air outlet 44 is communicated with a lower cavity in the cylinder 20, and the air inlet 43 is provided with an electromagnetic valve.
The external gear A29 is meshed with the internal gear A19, the external gear B40 is meshed with the internal gear B30, and the external gear A29, the internal gear A19, the external gear B40 and the internal gear B30 are all arc-surface gears.
The bearing A15 is externally provided with a bearing cover A45 correspondingly, and the bearing B18 is externally provided with a bearing cover B46 correspondingly.
The ball cover 36 is provided with a groove 47, and the snap 32 is mounted in the groove 47 of the ball cover 36.
And a sealing gasket pressing ring 48 is arranged at the sealing gasket 33.
The engaging groove 39 on the top of the engaging sleeve 38 is engaged with a protruding position of the rotation angle sensor 41 corresponding to the engaging groove 39.
The inner side surface of the bidirectional piston 21 is provided with a circle of convex structures, the number of the needle roller bearings 28 is two, one needle roller bearing is arranged above the convex structures of the bidirectional piston, and the other needle roller bearing is arranged below the convex structures of the bidirectional piston.
When the invention is used: the electronic steering gear body penetrates through the steering gear column and is fixed on the automobile chassis, and after the steering gear body is installed, the steering wheel is installed on the steering gear column. The electronic steering gear body comprises five parts, namely an adjusting base, a driving unit, an engaging shaft sleeve unit and an angle measuring device. The adjusting base is fixed on the automobile chassis, fixes and supports the whole structure of the electronic steering gear body, and can be adapted to the direction of a steering gear column to be finely adjusted; the driving unit is fixed on the adjusting base through a fixing screw, and receives a corresponding instruction to finely adjust the direction and the angle of the automobile; the engaging unit is connected with the driving unit and controls the disengagement and engagement with the steering wheel of the automobile. The engaging sleeve is fixed to the steering wheel column integrally with the steering wheel column, and engages with the rotating shaft in the engaging unit to rotate the steering wheel. The angle measuring device is connected with the meshing shaft sleeve, measures the rotation angle of the steering wheel, and feeds back angle information so that the control unit can send out the next instruction.
When the electronic steering gear body works, the servo motor drives the screw rod and the worm wheel to rotate, so that the rotating shaft rotates to drive the meshing shaft sleeve on the steering wheel pipe column to rotate, and the steering wheel is driven to rotate to achieve the purpose of controlling the steering wheel. After the electronic steering gear body is installed on an automobile chassis, an exhaust port on a cylinder is always communicated with the atmosphere, an air inlet on the cylinder is connected to a vehicle-mounted air storage tank, a solenoid valve is in a closed state at ordinary times and stands by, and once an emergency occurs, the solenoid valve is opened through electronic control, air in the air storage tank enters the cylinder, the spring force is overcome by the action of air pressure, the cylinder moves downwards to firstly push a needle roller bearing, and then the needle roller bearing pushes a rotating shaft to move downwards to separate an engaging shaft sleeve from the rotating shaft; when the crisis state is relieved, the electric control electromagnetic valve exhausts air, at the moment, the air outlet enters air, the air cylinder is jacked up under the action of the restoring force of the spring, the rotating shaft moves upwards, and the meshing shaft sleeve and the rotating shaft are restored to a meshing state.
Generally, the invention can automatically control the steering wheel, and can timely remove the control of the steering wheel when an emergency occurs, thereby ensuring the driving safety of the vehicle.
Claims (9)
1. A commercial vehicle electronic steering gear comprises an electronic steering gear body, wherein the electronic steering gear body is arranged on an automobile chassis, a steering gear pipe column is arranged on the automobile chassis, the steering gear pipe column penetrates through the electronic steering gear body, and an automobile steering wheel is arranged at the top of the steering gear pipe column; the method is characterized in that: the electronic steering gear comprises a steering gear body, an electronic steering gear body and a steering gear box, wherein the electronic steering gear body comprises an adjusting base, a driving unit, an engaging shaft sleeve unit and an angle measuring device;
the bottom plate of the adjusting base is fixedly arranged on the automobile chassis, and the side plate of the adjusting base is connected with the driving shell of the driving unit through a fixing screw;
the driving unit comprises a driving shell, a worm and a worm wheel, wherein the worm shell is arranged outside the driving shell, the worm is arranged inside the worm shell through a bearing A, a servo motor is arranged on the worm shell, the servo motor is connected with the worm through a coupler, the worm wheel is arranged inside the driving shell through a bearing B, the worm wheel is in transmission connection with the worm, and inner engaging teeth A are arranged inside the worm wheel;
the meshing unit comprises an air cylinder, a bidirectional piston, a spring base and a rotating shaft, wherein the spring base is fixedly connected to the driving shell, the air cylinder and the spring are arranged on the upper portion of the spring base, the bidirectional piston is installed inside the air cylinder, the air cylinder is divided into an upper cavity and a lower cavity by the bidirectional piston, the spring is arranged in the lower cavity, the lower portion of the bidirectional piston is embedded into a worm wheel, a guide pad A is arranged at the contact position of the bidirectional piston and the spring base, the upper portion of the bidirectional piston penetrates out of an upper top plate of the air cylinder, a guide pad B is arranged at the contact position of the upper portion of the bidirectional piston and the air cylinder, and a sealing ring is arranged between a; the rotating shaft is arranged in the bidirectional piston, a needle bearing is arranged between the rotating shaft and the bidirectional piston, external meshing teeth A are arranged on the outer side of the bottom of the rotating shaft, internal meshing teeth B are arranged in the rotating shaft, the bottom of the rotating shaft is arranged in the worm wheel, a clamping groove is arranged at the top of the rotating shaft, and a clamp is arranged in the clamping groove; the top of the inner cavity of the cylinder is provided with a sealing gasket, the outer side surface of the top of the cylinder is provided with a ball groove, balls are arranged in the ball groove, the upper part of the ball groove is provided with a ball cover, and the upper part of the ball cover is provided with a retaining ring;
the meshing shaft sleeve unit comprises a meshing shaft sleeve, a clamping groove and external meshing teeth B, the external meshing teeth B are arranged on the outer side face of the meshing shaft sleeve, the clamping groove is formed in the top of the meshing shaft sleeve, the meshing shaft sleeve is fixedly arranged on the steering gear column, and the external meshing teeth B outside the meshing shaft sleeve are meshed with the internal meshing teeth B inside the rotating shaft;
the angle measuring device comprises a corner sensor and a sensor fixing frame, the sensor fixing frame is fixed on the upper portion of the air cylinder through a fixing screw, the corner sensor is installed on the sensor fixing frame, and the top of the meshing shaft sleeve is installed on the corner sensor.
2. A commercial vehicle electronic steering gear according to claim 1, characterised in that: the air cylinder lateral surface sets up air inlet, gas vent respectively, the upper portion cavity intercommunication in air inlet and the cylinder, the gas vent communicates with the lower part cavity in the cylinder, install the solenoid valve on the air inlet.
3. A commercial vehicle electronic steering gear according to claim 1, characterised in that: the external gear A is meshed with the internal gear A.
4. A commercial vehicle electronic steering gear according to claim 1, characterised in that: the external gear A, the internal gear A, the external gear B and the internal gear B are all set to be cambered surface teeth.
5. A commercial vehicle electronic steering gear according to claim 1, characterised in that: the bearing A is correspondingly provided with a bearing cover A, and the bearing B is correspondingly provided with a bearing cover B.
6. A commercial vehicle electronic steering gear according to claim 1, characterised in that: the ball cover is provided with a groove, and the buckle is arranged in the groove on the ball cover.
7. A commercial vehicle electronic steering gear according to claim 1, characterised in that: and a sealing gasket compression ring is arranged at the sealing gasket.
8. A commercial vehicle electronic steering gear according to claim 1, characterised in that: and the clamping groove at the top of the meshing shaft sleeve is clamped on the protruding position, corresponding to the clamping groove, on the corner sensor.
9. A commercial vehicle electronic steering gear according to claim 1, characterised in that: the inner side face of the bidirectional piston is provided with a circle of convex structures, the number of the needle roller bearings is two, one needle roller bearing is arranged above the convex structures of the bidirectional piston, and the other needle roller bearing is arranged below the convex structures of the bidirectional piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011548815.5A CN112498473A (en) | 2020-12-24 | 2020-12-24 | Electronic steering gear of commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011548815.5A CN112498473A (en) | 2020-12-24 | 2020-12-24 | Electronic steering gear of commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112498473A true CN112498473A (en) | 2021-03-16 |
Family
ID=74923287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011548815.5A Pending CN112498473A (en) | 2020-12-24 | 2020-12-24 | Electronic steering gear of commercial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112498473A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008051652A (en) * | 2006-08-24 | 2008-03-06 | Jtekt Corp | Steering angle detection apparatus |
| JP2008168651A (en) * | 2007-01-06 | 2008-07-24 | Nissan Motor Co Ltd | Clutch and vehicular steering system using the same |
| CN101547825A (en) * | 2007-04-11 | 2009-09-30 | 丰田自动车株式会社 | Vehicle steering control system |
| CN102395504A (en) * | 2009-01-27 | 2012-03-28 | 帕尔马里克斯有限公司 | Drive control system |
| CN103223973A (en) * | 2012-01-25 | 2013-07-31 | 本田技研工业株式会社 | Vehicle and steering apparatus |
| CN105691446A (en) * | 2016-03-22 | 2016-06-22 | 毕大宁 | Steering tube type electric power assisting device |
| US20170217475A1 (en) * | 2016-02-02 | 2017-08-03 | Jtekt Corporation | Steering Device |
| CN109649472A (en) * | 2018-12-27 | 2019-04-19 | 河南护航实业股份有限公司 | A kind of steering wheel automatic fine tuning device |
| CN210971266U (en) * | 2019-11-29 | 2020-07-10 | 罗伯特·博世有限公司 | Torque angle sensor |
| CN211336156U (en) * | 2019-11-29 | 2020-08-25 | 比亚迪股份有限公司 | Vehicle, vehicle steering system and clutch mechanism thereof |
-
2020
- 2020-12-24 CN CN202011548815.5A patent/CN112498473A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008051652A (en) * | 2006-08-24 | 2008-03-06 | Jtekt Corp | Steering angle detection apparatus |
| JP2008168651A (en) * | 2007-01-06 | 2008-07-24 | Nissan Motor Co Ltd | Clutch and vehicular steering system using the same |
| CN101547825A (en) * | 2007-04-11 | 2009-09-30 | 丰田自动车株式会社 | Vehicle steering control system |
| CN102395504A (en) * | 2009-01-27 | 2012-03-28 | 帕尔马里克斯有限公司 | Drive control system |
| CN103223973A (en) * | 2012-01-25 | 2013-07-31 | 本田技研工业株式会社 | Vehicle and steering apparatus |
| US20170217475A1 (en) * | 2016-02-02 | 2017-08-03 | Jtekt Corporation | Steering Device |
| CN105691446A (en) * | 2016-03-22 | 2016-06-22 | 毕大宁 | Steering tube type electric power assisting device |
| CN109649472A (en) * | 2018-12-27 | 2019-04-19 | 河南护航实业股份有限公司 | A kind of steering wheel automatic fine tuning device |
| CN210971266U (en) * | 2019-11-29 | 2020-07-10 | 罗伯特·博世有限公司 | Torque angle sensor |
| CN211336156U (en) * | 2019-11-29 | 2020-08-25 | 比亚迪股份有限公司 | Vehicle, vehicle steering system and clutch mechanism thereof |
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Effective date of registration: 20240403 Address after: 310000, Room 305, Building 1, No. 868 Shenglian Road, Qingshanhu Street, Lin'an District, Hangzhou City, Zhejiang Province (self declared) Applicant after: Zhejiang Zhonghe Escort Technology Co.,Ltd. Country or region after: China Address before: 450000 Incubation Building 1309-1317, No. 1, Incubation Park, Henan National University Science Park, No. 11 Changchun Road, Zhengzhou High-tech Zone, Henan Province Applicant before: HENAN ESCORT INDUSTRIAL Co.,Ltd. Country or region before: China |