CN108749917A - A kind of passenger car electric servo steering device - Google Patents
A kind of passenger car electric servo steering device Download PDFInfo
- Publication number
- CN108749917A CN108749917A CN201810948286.4A CN201810948286A CN108749917A CN 108749917 A CN108749917 A CN 108749917A CN 201810948286 A CN201810948286 A CN 201810948286A CN 108749917 A CN108749917 A CN 108749917A
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- torque
- input shaft
- output shaft
- steering
- steering wheel
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- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 230000002441 reversible effect Effects 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 8
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 238000009428 plumbing Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
Abstract
The present invention discloses a kind of passenger car electric servo steering device, including input shaft, output shaft, it is arranged in input shaft and shell, the worm screw being sequentially connected with output shaft, the motor that is connect with worm screw and the ECU control units with motor communication connection outside output shaft, the input shaft is coaxially set with output shaft, and both input shaft and output shaft are fixedly connected by torque arm;The input shaft, which is connected with exporting axis in the outer circle at end, is provided with torque angle sensor, and torque angle sensor is connected with the communication of ECU control units;Turbine is fixedly connected with by flat key on the outer wall of the output shaft, turbine is a pair of reversible deceleration transmission pair with the worm screw.The passenger car electric servo steering device of the present invention, it is combined with traditional car hydraulic steering system, three kinds of operating modes can be achieved, i.e. hydraulic booster with it is electric boosted work at the same time pattern, it is electric boosted work independently pattern and artificial mechanism hydraulic booster works independently pattern, keep the steering boost system of car more safe and reliable.
Description
Technical field
The invention belongs to Bus Technology fields, specifically, being related to a kind of passenger car electric servo steering device.
Background technology
In the development course of automobile, steering is developed to hydraulic power steering system by initial mechanical steering
System is changed into Electro-Hydraulic Power Steering System from hydraulic power-assist steering system, then has Electro-Hydraulic Power Steering System transformation
For electric boosting steering system, wherein electric booster system is to provide power steering by electric boosted machine, reduces energy consumption, adjusts
Simply, assembly is flexible, can provide power steering in several situations, while electric boosted machine is connected with electronic control list
Member, electronic control unit provide the power steering of respective strengths by the electric boosted machine of the factor controllings such as speed, torque angle.
In the prior art, there are two types of the steering forms of electric boosting steering system, one is use electric boosted component
It is installed on steering hub column, but this mounting structure installation and maintenance are inconvenient, and improve steering hub column manufacture and bring complexity
Property, another kind is the circular ball type steering using hydraulic power-assisted steering and electric boosted combination, but this steering
Complicated, volume is big and arrangement is inconvenient, of high cost.It is mentioned above in steering boost system in order to solve the problems, such as, to obtain
A kind of simple in structure, dependable performance, using passenger car electric servo steering device the features such as convenience, the present invention provides following skills
Art scheme.
Invention content
The purpose of the present invention is to provide a kind of passenger car electric servo steering devices.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of passenger car electric servo steering device, including input shaft, output shaft, be arranged outside input shaft and output shaft
Shell, torque arm, torque angle sensor, with output shaft be sequentially connected turbine, worm screw, the motor being connect with worm screw and with
The ECU control units of motor communication connection, the input shaft are coaxially set with output shaft, and both input shaft and output shaft pass through
Torque arm is fixedly connected;
The input shaft is connected with exporting axis in the outer circle at end and is provided with torque angle sensor, torque angle sensor
The outer wall of an inner circle part and input shaft connects, and another part of torque angle sensor inner circle and the outer wall of output shaft connect,
The torque angle sensor is connected with the communication of ECU control units, and torque angle sensor detects torque and the corner of input shaft
Signal, and by the electric signal output of torque and corner to ECU control units;
If being socketed with dry bearing on the outer wall of the input shaft and output shaft, the outer shroud of bearing is fixed on the inside of shell,
The shell of shell is fixedly mounted on the chassis of car;
Be respectively fixed with left end cap and right end cap on the left and right ends face of the shell, left end cap with worn respectively in right end cap
Input shaft and output shaft are crossed, oil enveloping structure is built-in in left end cap and right end cap;
Turbine is fixedly connected with by flat key on the outer wall of the output shaft, the both sides of turbine are provided with spacer, spacer set
It is connected on the outer wall of output shaft, turbine is a pair of reversible deceleration transmission pair with the worm screw.
As the further scheme of the present invention, both the input shaft and output shaft connect one end and are provided with axial bore,
The outer end of axial bore is provided with radial pin hole, and torque arm is provided in the axial bore of input shaft and output shaft, torque arm
Both ends are inserted into radial pin hole by axis pin are fixedly connected with input shaft and output shaft respectively.
As the further scheme of the present invention, the passenger car electric servo steering device is arranged in angle transmission and direction
Between machine, wherein input shaft is connect with angle transmission, and output shaft is connect with steering wheel.
As the further scheme of the present invention, the quantity of the bearing is three, and two of which bearing is socketed in output shaft
Outer wall on, another bearing is socketed on the outer wall of input shaft.
As the further scheme of the present invention, round nut, circle spiral shell are provided between the oil enveloping structure and adjacent bearing
Mother stock is not screwed up by helicitic texture on the outer wall of input shaft and output shaft.
As the further scheme of the present invention, the working method of the electric power-assisted steering apparatus is:
When car low speed is turned, steering wheel needs larger torque, and steering wheel rotation band driven input shaft rotates, to drive
Torque arm and torque angle sensor torsional deformation, this torsional deformation generate electric signal and input ECU control units, ECU systems
Steering-wheel torque is converted by calculating, when steering-wheel torque reaches set target value, remaining torque is led to by motor output torque
Turbine is crossed with the reversible transmission deceleration torque of worm screw to provide, torque passes jointly after steering-wheel torque provides torque couple with motor
It is delivered on the input shaft of steering wheel, steering wheel is made to do hydraulic booster work, realize that car turns to;
When car middling speed or when running at high speed, travel needed for power steering it is smaller, hydraulic booster is stopped, defeated by motor
Go out torque and steering drag is overcome by the torque of turbine and the reversible transmission torque of worm screw, when manipulating steering wheel, rotation angle of torque
Sensor constantly measures steering and dtc signal on input shaft, which is input to ECU control lists simultaneously with speed ??signal
Member, ECU control units determine that size and the steering of motor torque, motor drive turbine and worm screw reversible transmission according to input signal
Dynamic pair, is transmitted to steering wheel, drives the left and right swing of plumbing arm on steering wheel, realizes that car turns to;
When the motor of car breaks down, steering can be added in the manual torque of steering wheel by driver, pass through
Input shaft and output shaft drive the rotation of steering wheel input shaft, steering wheel are made to do hydraulic booster work, realize that car turns to.
Beneficial effects of the present invention:
1, passenger car electric servo steering device of the invention, is combined with traditional car hydraulic steering system, it can be achieved that three
Kind operating mode, i.e. hydraulic booster work at the same time pattern, electric boosted pattern and the artificial mechanism liquid of working independently with electric boosted
Pressure power-assisted works independently pattern, keeps the steering boost system of car more safe and reliable.
2, structure of the invention is compared to traditional servo steering device, simpler, the volume smaller of whole device, no
Big quantity space can be occupied, facilitates installation and is laid with.
Description of the drawings
The present invention will be further described below with reference to the drawings.
Fig. 1 is the structural schematic diagram of the present invention;
Fig. 2 is the side view of structure of the invention;
Fig. 3 is connection diagram of the present invention in automobile steering transmission system.
Specific implementation mode
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
All other embodiment that art personnel are obtained without creative efforts belongs to the model that the present invention protects
It encloses.
A kind of passenger car electric servo steering device, as shown in Figure 1 and Figure 2, including input shaft 1, output shaft 8, setting inputting
Axis 1 and the shell 5 outside output shaft 8, torque arm 2, torque angle sensor 4, the turbine 6 being sequentially connected with output shaft 8, worm screw
11, the motor 12 being connect with worm screw 11 and the ECU control units with the communication connection of motor 12, the input shaft 1 and output shaft 8
It is coaxially set, input shaft 1 connect one end with 8 the two of output shaft and is provided with axial bore, and the outer end of axial bore is provided with diameter
To pin hole, input shaft 1 is provided with torque arm 2 with the axial bore of output shaft, and the both ends of torque arm 2 are inserted by axis pin respectively
It is fixedly connected with input shaft 1 and output shaft 8 in radial pin hole, to realize being connected and fixed for input shaft 1 and output shaft 8, such as Fig. 3
Shown, the passenger car electric servo steering device is arranged between angle transmission and steering wheel, and wherein input shaft 1 is driven with angle
Device connects, and output shaft 8 is connect with steering wheel.
The input shaft 1 is sensed with torque angle sensor 4, rotation angle of torque is provided in the outer circle of 8 connecting pin of output shaft
An inner circle part for device 4 is connect with the outer wall of input shaft 1, and another part of 4 inner circle of torque angle sensor is outer with output shaft 8
Wall connects, and the torque angle sensor 4 is connected with the communication of ECU control units, and torque angle sensor 4 detects input shaft 1
Torque and angular signal, and by the electric signal output of torque and corner to ECU control units.
If the input shaft 1 is socketed with dry bearing 10 on the outer wall of output shaft 8, in one embodiment of the invention,
The quantity of bearing 10 is three, and two of which bearing 10 is socketed on the outer wall of output shaft 8, another bearing 10 is socketed in input
On the outer wall of axis 1, the outer shroud of bearing 10 is fixed on the inside of shell 5, and threaded hole is provided on the shell of shell 5, and shell 5 passes through
The threaded hole is fixedly mounted on bolt on the chassis of car, and bearing 10 plays well input shaft 1 and output shaft 8 with shell 5
Support effect.
Be respectively fixed with left end cap 3 and right end cap 7 on the left and right ends face of the shell 5, left end cap 3 in right end cap 7
It is each passed through input shaft 1 and output shaft 8, oil enveloping structure 9 is built-in in left end cap 3 and right end cap 7, to the connection in shell 5
Structure plays good protecting effect, prevents dust debris from entering the normal work that junction influences device;
Round nut 15 is provided between the oil enveloping structure 9 and adjacent bearing 10, round nut 15 passes through screw thread knot respectively
Structure screws up on the outer wall of input shaft 1 and output shaft 8, prevents the generation of input shaft 1, output shaft 8 and shell 5 is opposite from sliding;
Turbine 6 is fixedly connected with by flat key 14 on the outer wall of the output shaft 8, the both sides of turbine 6 are provided with spacer 13,
Spacer 13 is socketed on the outer wall of output shaft 8, and turbine 6 and the worm screw 11 are a pair of reversible deceleration transmission pair, and when work can lead to
Crossing motor 12 drives worm screw 11 to rotate, and worm screw 11 is further driven to the rotation of turbine 6 to realize the rotation of output shaft 8.
The present invention working method be:
When car low speed is turned, steering wheel needs larger torque, and steering wheel rotation band driven input shaft 1 rotates, to band
4 torsional deformation of dynamic torque arm 2 and torque angle sensor, this torsional deformation generate electric signal and input ECU control units, ECU
System is by calculating conversion steering-wheel torque, and when steering-wheel torque reaches set target value, (steering-wheel torque cannot make at this time
Steering wheel works), remaining torque is carried by turbine 6 with 11 reversible transmission deceleration torque of worm screw by 12 output torque of motor
For torque is transmitted on the input shaft of steering wheel jointly after steering-wheel torque provides torque couple with motor 12, and steering wheel is made to do
Hydraulic booster works, and realizes that car turns to, i.e., hydraulic booster works at the same time pattern with electric boosted;
When car middling speed or when running at high speed, travel needed for power steering it is smaller, hydraulic booster is stopped, only by motor
12 output torques overcome steering drag by the torque of turbine 6 and 11 reversible transmission torque of worm screw, when manipulating steering wheel, turn round
Square rotary angle transmitter 4 constantly measures steering and dtc signal on input shaft 1, which is input to simultaneously with speed ??signal
ECU control units, ECU control units determine that size and the steering of 12 torque of motor, motor 12 drive turbine according to input signal
6 with 11 reversible transmission of worm screw, be transmitted to steering wheel, drive the left and right swing of plumbing arm on steering wheel, realize that car turns to, i.e.,
The electric boosted pattern that works independently;
When the motor 12 of car breaks down, steering can be added in the manual torque of steering wheel by driver, warp
Input shaft 1 and output shaft 8 are crossed, the rotation of steering wheel input shaft is driven, steering wheel is made to do hydraulic booster work, realizes that car turns to,
That is artificial mechanism hydraulic booster works independently pattern.
The passenger car electric servo steering device of the present invention, is combined with traditional car hydraulic steering system, it can be achieved that three kinds
Operating mode, i.e. hydraulic booster work at the same time pattern, electric boosted pattern and the artificial mechanism hydraulic pressure of working independently with electric boosted
Power-assisted works independently pattern, keeps the steering boost system of car more safe and reliable, while the structure of the present invention is compared to tradition
Servo steering device, simpler, the volume smaller of whole device will not occupy big quantity space, facilitate installation be laid with.
Above content is only to structure of the invention example and explanation, affiliated those skilled in the art couple
Described specific embodiment does various modifications or additions or substitutes by a similar method, without departing from invention
Structure or beyond the scope defined by this claim, is within the scope of protection of the invention.
Claims (6)
1. a kind of passenger car electric servo steering device, which is characterized in that inputted including input shaft (1), output shaft (8), setting
Axis (1) shell (5) external with output shaft (8), torque arm (2), torque angle sensor (4) and output shaft (8) are sequentially connected
Turbine (6), worm screw (11), the motor (12) being connect with worm screw (11) and controlled with the ECU of motor (12) communication connection single
Member, the input shaft (1) are coaxially set with output shaft (8), and both input shaft (1) and output shaft (8) are solid by torque arm (2)
Fixed connection;
The input shaft (1) passes with torque angle sensor (4), rotation angle of torque is provided in the outer circle of output shaft (8) connecting pin
An inner circle part for sensor (4) is connect with the outer wall of input shaft (1), another part of torque angle sensor (4) inner circle with it is defeated
The outer wall of shaft (8) connects, and the torque angle sensor (4) connects with the communication of ECU control units, torque angle sensor
(4) torque of detection input shaft (1) and angular signal, and by the electric signal output of torque and corner to ECU control units;
The input shaft (1) and output shaft (8) if outer wall on be socketed with dry bearing (10), the outer shroud of bearing (10) is fixed on shell
The shell of the inside of body (5), shell (5) is fixedly mounted on the chassis of car;
Left end cap (3) and right end cap (7), left end cap (3) and right end cap are respectively fixed on the left and right ends face of the shell (5)
(7) it is each passed through input shaft (1) and output shaft (8) in, oil enveloping structure (9) is built-in in left end cap (3) and right end cap (7);
Turbine (6) is fixedly connected with by flat key (14) on the outer wall of the output shaft (8), the both sides of turbine (6) be provided with every
It covers (13), spacer (13) is socketed on the outer wall of output shaft (8), and turbine (6) is that a pair of reversible deceleration passes with the worm screw (11)
Dynamic pair.
2. a kind of passenger car electric servo steering device according to claim 1, which is characterized in that the input shaft (1) with
Both output shafts (8) connection one end is provided with axial bore, and the outer end of axial bore is provided with radial pin hole, input shaft (1) with
Be provided with torque arm (2) in the axial bore of output shaft, the both ends of torque arm (2) respectively by axis pin be inserted into radial pin hole with
Input shaft (1) is fixedly connected with output shaft (8).
3. a kind of passenger car electric servo steering device according to claim 1, which is characterized in that the passenger car electric power-assisted
Transfer is arranged between angle transmission and steering wheel, and wherein input shaft (1) is connect with angle transmission, output shaft (8)
It is connect with steering wheel.
4. a kind of passenger car electric servo steering device according to claim 1, which is characterized in that the number of the bearing (10)
Amount is three, and two of which bearing (10) is socketed on the outer wall of output shaft (8), another bearing (10) is socketed in input shaft
(1) on outer wall.
5. a kind of passenger car electric servo steering device according to claim 1, which is characterized in that the oil enveloping structure (9)
Round nut (15) is provided between adjacent bearing (10), round nut (15) is screwed up by helicitic texture in input shaft respectively
(1) and on the outer wall of output shaft (8).
6. a kind of passenger car electric servo steering device according to claim 1, which is characterized in that the electric power steering fills
The working method set is:
When car low speed is turned, steering wheel needs larger torque, and steering wheel rotation band driven input shaft (1) rotates, to drive
Torque arm (2) and torque angle sensor (4) torsional deformation, this torsional deformation generate electric signal and input ECU control units,
ECU systems are by calculating conversion steering-wheel torque, and when steering-wheel torque reaches set target value, remaining torque is by motor (12)
Output torque is provided by turbine (6) with the reversible transmission deceleration torque of worm screw (11), and steering-wheel torque is carried with motor (12)
It is transmitted on the input shaft of steering wheel jointly for torque after torque couple, steering wheel is made to do hydraulic booster work, realize that car turns
To;
When car middling speed or when running at high speed, travel needed for power steering it is smaller, hydraulic booster is stopped, defeated by motor (12)
Go out torque and steering drag is overcome by the torque of turbine (6) and the reversible transmission torque of worm screw (11), when manipulating steering wheel, turns round
Square rotary angle transmitter (4) constantly measures steering and dtc signal on input shaft (1), which inputs simultaneously with speed ??signal
To ECU control units, ECU control units determine the size and steering of motor (12) torque, motor (12) band according to input signal
Dynamic turbine (6) and worm screw (11) reversible transmission, are transmitted to steering wheel, drive the left and right swing of plumbing arm on steering wheel, realize visitor
Vehicle turns to;
When the motor (12) of car breaks down, steering can be added in the manual torque of steering wheel by driver, pass through
Input shaft (1) and output shaft (8) drive the rotation of steering wheel input shaft, steering wheel are made to do hydraulic booster work, realize that car turns
To.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810948286.4A CN108749917A (en) | 2018-08-20 | 2018-08-20 | A kind of passenger car electric servo steering device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201810948286.4A CN108749917A (en) | 2018-08-20 | 2018-08-20 | A kind of passenger car electric servo steering device |
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Publication Number | Publication Date |
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CN108749917A true CN108749917A (en) | 2018-11-06 |
Family
ID=63967208
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CN201810948286.4A Pending CN108749917A (en) | 2018-08-20 | 2018-08-20 | A kind of passenger car electric servo steering device |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113443001A (en) * | 2020-03-27 | 2021-09-28 | 操纵技术Ip控股公司 | Variable stroke stop for improving durability of worm gear |
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JPH10329729A (en) * | 1997-05-28 | 1998-12-15 | Honda Motor Co Ltd | Electric power steering system |
US6328128B1 (en) * | 1999-07-19 | 2001-12-11 | Nsk Ltd. | Electric power steering apparatus |
JP2007290550A (en) * | 2006-04-25 | 2007-11-08 | Nsk Ltd | Electric power steering device |
CN201264171Y (en) * | 2008-08-05 | 2009-07-01 | 陈立新 | Radial movement mechanism |
CN104401388A (en) * | 2014-10-23 | 2015-03-11 | 北京奥特尼克科技有限公司 | Intelligent electro-hydraulic steering system |
CN107520892A (en) * | 2017-10-11 | 2017-12-29 | 青岛理工大学 | A kind of manual carborundum line cutting machine |
CN107670556A (en) * | 2017-11-03 | 2018-02-09 | 青岛科技大学 | A kind of convertible self- poking arrangement of moment of torsion |
CN208630693U (en) * | 2018-08-20 | 2019-03-22 | 安徽安凯汽车股份有限公司 | A kind of passenger car electric servo steering device |
-
2018
- 2018-08-20 CN CN201810948286.4A patent/CN108749917A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10329729A (en) * | 1997-05-28 | 1998-12-15 | Honda Motor Co Ltd | Electric power steering system |
US6328128B1 (en) * | 1999-07-19 | 2001-12-11 | Nsk Ltd. | Electric power steering apparatus |
JP2007290550A (en) * | 2006-04-25 | 2007-11-08 | Nsk Ltd | Electric power steering device |
CN201264171Y (en) * | 2008-08-05 | 2009-07-01 | 陈立新 | Radial movement mechanism |
CN104401388A (en) * | 2014-10-23 | 2015-03-11 | 北京奥特尼克科技有限公司 | Intelligent electro-hydraulic steering system |
CN107520892A (en) * | 2017-10-11 | 2017-12-29 | 青岛理工大学 | A kind of manual carborundum line cutting machine |
CN107670556A (en) * | 2017-11-03 | 2018-02-09 | 青岛科技大学 | A kind of convertible self- poking arrangement of moment of torsion |
CN208630693U (en) * | 2018-08-20 | 2019-03-22 | 安徽安凯汽车股份有限公司 | A kind of passenger car electric servo steering device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113443001A (en) * | 2020-03-27 | 2021-09-28 | 操纵技术Ip控股公司 | Variable stroke stop for improving durability of worm gear |
US11697454B2 (en) | 2020-03-27 | 2023-07-11 | Steering Solutions Ip Holding Corporation | Variable travel stop to increase worm gear durability |
CN113443001B (en) * | 2020-03-27 | 2023-07-14 | 操纵技术Ip控股公司 | Variable travel stop for improved worm gear durability |
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