CN106864587A - Pipe column type electric servo steering device - Google Patents
Pipe column type electric servo steering device Download PDFInfo
- Publication number
- CN106864587A CN106864587A CN201710243731.2A CN201710243731A CN106864587A CN 106864587 A CN106864587 A CN 106864587A CN 201710243731 A CN201710243731 A CN 201710243731A CN 106864587 A CN106864587 A CN 106864587A
- Authority
- CN
- China
- Prior art keywords
- motor
- bar
- cycloid
- shaft
- shaped trough
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- B62D5/0403—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 constructional features, e.g. common housing for motor and gear box
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
Abstract
The invention belongs to automobile technical field, it is related to a kind of pipe column type electric servo steering device, including motor, motor output end connection reducing gear, it is characterised in that：Motor shaft be axially through hollow structure, motor shaft extended in reducing gear；The reducing gear includes rotating the hollow output shaft for being arranged at motor shaft output, steering wheel column is rotated and is arranged in motor shaft endoporus, linked with hollow output shaft steering wheel column lower end, motor shaft diameter of axle surface decentration portion tight fit sets clutch shaft bearing, cycloid disc is equipped with clutch shaft bearing outer ring, and the cycloid groove of hollow output shaft inner face is coordinated with the cycloid groove of the side surface of cycloid disc one by the first steel ball；Motor bottom end face sets gradually one side slotted disk, gap adjusting pad, and decelerator shell is pressed on the adjusting pad of gap, and is fastenedly connected with motor.The transfer energy consumption is low, can effectively improve the stability of motor turning manipulation.
Description
Technical field
The invention belongs to automobile technical field, it is related to a kind of pipe column type electric servo steering device.
Background technology
In modern industry, reliable motor-drive technique is increasingly applied, and is widely used in machine tool numerical control system and automatic
In change equipment.Electric drive, environmental protection can obtain the control performances such as satisfied torque, position, speed.Especially in garage
Industry, such as motor turning power-assisted.It is electric boosted increasingly perfect, gradually replace traditional hydraulic power-assisted steering.
Electric boosted (EPS) compares hydraulic booster (HPS), consumes energy lower.Have been widely used on low power consuming automobile, especially
It is pure electric automobile, and EPS is its optimal selection.The electric boosted operating physical force that can mitigate driver.It is electric boosted
(EPS) system can make automobile that satisfied power steering can be obtained under various speed by the control of software (ECU), change
The stability of kind automobile operation.EPS is with vehicle power supply as the energy, as long as electric power is sufficient, you can produce power-assisted.
The content of the invention
The present invention is regarding to the issue above, there is provided a kind of pipe column type electric servo steering device, the transfer energy consumption is low, can
To effectively improve the stability of motor turning manipulation.
According to technical scheme：A kind of pipe column type electric servo steering device, including motor, motor output end connect
Connect reducing gear, it is characterised in that：Motor shaft be axially through hollow structure, motor shaft extended in reducing gear；It is described
Reducing gear includes rotating the hollow output shaft for being arranged at motor shaft output, and steering wheel column is rotated and is arranged at motor shaft endoporus
In, steering wheel column lower end is linked with hollow output shaft, and motor shaft diameter of axle surface decentration portion tight fit sets clutch shaft bearing, cycloid disc
It is equipped with clutch shaft bearing outer ring, the cycloid groove of hollow output shaft inner face and the cycloid groove of the side surface of cycloid disc one are by the
One steel ball coordinates；Motor bottom end face sets gradually one side slotted disk, gap adjusting pad, and decelerator shell is pressed in gap adjusting pad
On, and be fastenedly connected with motor, decelerator shell is supported axially through thrust bearing with hollow output shaft and is spaced, decelerator shell
With hollow output shaft radial through oil sealing sealing；Set in decelerator shell inner chamber, corresponding between one side slotted disk and cycloid disc
Two-sided slotted disk is put, the bar-shaped trough of the two-sided slotted disk both side surface is respectively by the second steel ball and one side slotted disk, cycloid disc
Bar-shaped trough is engaged.
As a further improvement on the present invention, self-lubricating set is arranged on the steering wheel column, self-lubricating set tightly fits in electricity
In arbor endoporus.
As a further improvement on the present invention, the steering wheel column is fixed with hollow output shaft by key or tensioning sleeve and connected
Connect.
As a further improvement on the present invention, the hollow output shaft by second bearing and 3rd bearing rotational support in
On motor shaft or hollow output shaft by a two-row ball bearing rotational support on motor shaft.
As a further improvement on the present invention, the center line of the cycloid slotted disk meets cycloid equation：
X=R*cos (t)+e*cos (N*t), Y=R*sin (t)-e*sin (N*t)；
The cycloid equation that the end face cycloid groove of hollow output shaft meets is：
X=R*cos (t)-e*cos (N*t), Y=R*sin (t)-e*sin (N*t),
Wherein X is the abscissa of certain point on curve, and Y is the ordinate of respective point,
N is the quantity of meshing point when internal and external cycloids are engaged,
E is eccentric throw, and t is the angle between any point and origin of coordinates line and X-axis on cycloid,
R is the base radius for generating cycloid；
The span of angle t is 0 °~360 °, R=cycloid disc radiuses * (0.6~0.85), N=2* speed reducing ratio+1, e's
Span is 0.5~3；Bar-shaped trough arrangement on two-sided slotted disk, cycloid disc and one side slotted disk is identical, wherein one side slotted disk
Above, upper row's bar-shaped trough, lower row's bar-shaped trough, left column bar-shaped trough, right row bar-shaped trough, upper row are respectively provided with corresponding to through hole upper and lower ends
Bar-shaped trough lower section two ends are respectively provided with two bar-shaped troughs, and lower row's bar-shaped trough top two ends are respectively provided with two bar-shaped troughs, it is described on
Row's bar-shaped trough, lower row's bar-shaped trough include four bar-shaped troughs, and left column bar-shaped trough, right row bar-shaped trough include three bar-shaped troughs；It is double
The structure on face slotted disk two sides differs 90 degree；The cycloid groove, the cross section of bar-shaped trough are circular arc, the circular arc and the first steel ball,
Second steel ball is engaged.
As a further improvement on the present invention, lead between the decelerator shell, gap adjusting pad, one side slotted disk and motor
Fixing bolt is crossed to be fastenedly connected.
As a further improvement on the present invention, the hollow output shaft lower end diameter of axle surface sets the first encoder, first
Encoder passes through the spacing fixation of aluminium ring.
As a further improvement on the present invention, the motor includes the machine winding being arranged in motor casing, rotor
It is sheathed on motor shaft and is placed in machine winding inner ring, the rotor two ends passes through motor bearings one, motor bearings respectively
Two spacing fixations, motor bearings two is installed on motor front end cover, and motor front end cover is fixedly connected on motor casing, motor bearings
One upper surface sets motor encoder, motor encoder and motor shaft synchronous axial system, and motor encoder outer ring sets cushion, bullet
Property pad one end is pressed in the outer ring of motor bearings one, and the other end is held out against on motor casing.
The technical effects of the invention are that：1) planetary steel ball reducing gear can with antiport (antiport will not and whirlpool
The same locking of worm and gear reducing gear), it is meant that without arrangement of clutch so that mechanism reliability is more preferable.2) motor and reductor
Structure uses through hollow design, and steering column can be formed directly into.Do not influence the structure of steering column, steering column intensity not to receive at all
Influence, manufacturing process is unaffected.While the vehicle being installed at present using HPS that can be without lifting an eyebrow.3) motor and deceleration
Mechanism's integrated design, compact conformation, it is easy to arrangement and assembling, planetary steel ball reducing gear part processing are simple, cost
It is cheap.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Fig. 2 is the structural representation of motor shaft in the present invention.
Fig. 3 is hollow output shaft inner face structural representation in the present invention.
Fig. 4 is the schematic diagram of two-sided slotted disk in the present invention.
Fig. 5 is the A-A sectional views of Fig. 4.
Fig. 6 is the rearview of Fig. 4.
Fig. 7 is the schematic diagram of one side slotted disk in the present invention.
Fig. 8 is the B-B sectional views of Fig. 7.
Fig. 9 is use state schematic diagram of the invention.
Specific embodiment
Specific embodiment of the invention is further described below in conjunction with the accompanying drawings.
In Fig. 1, including hollow output shaft 1, the first encoder 2, decelerator shell 3, thrust bearing 4, clutch shaft bearing 5,
Two steel balls 6, one side slotted disk 7, fixing bolt 8, motor front end cover 9, machine winding 10, self-lubricating set 11, motor bearings 1, electricity
Machine encoder 13, cushion 14, steering wheel column 15, motor shaft 16, rotor 17, motor bearings 2 18, gap adjusting pad 19,
Two-sided slotted disk 20, cycloid disc 21, the first steel ball 22, second bearing 23, oil sealing 24,3rd bearing 25, aluminium ring 26, tensioning sleeve 27,
Wheel 28, fixed support 29, eccentric part 30, end face cycloid groove 31 etc..
As shown in figure 1, the present invention is a kind of pipe column type electric servo steering device, including motor, motor output end connection
Reducing gear, motor shaft 16 be axially through hollow structure, motor shaft 16 extended in reducing gear；The reducing gear bag
The hollow output shaft 1 for rotating and being arranged at the output end of motor shaft 16 is included, steering wheel column 15 is rotated and is arranged in the endoporus of motor shaft 16, side
Linked with hollow output shaft 1 to the lower end of disk post 15, the tight fit of 16 diameter of axle surface decentration portion of motor shaft 30 sets clutch shaft bearing 5, pendulum
Drum 21 is equipped with the outer ring of clutch shaft bearing 5, the cycloid groove of the inner face of hollow output shaft 1 and the pendulum of the side surface of cycloid disc 21 1
Wire casing is coordinated by the first steel ball 22；Motor bottom end face sets gradually one side slotted disk 7, gap adjusting pad 19, decelerator shell 3
It is pressed on gap adjusting pad 19, and is fastenedly connected with motor, decelerator shell 3 is with hollow output shaft 1 axially through thrust axis
4 supports interval is held, decelerator shell 3 is sealed with hollow output shaft 1 radial through oil sealing 24；In the inner chamber of decelerator shell 3, it is right
Two-sided slotted disk 20, the bar-shaped trough difference of the both side surface of two-sided slotted disk 20 should be set between one side slotted disk 7 and cycloid disc 21
It is engaged with the bar-shaped trough on one side slotted disk 7, cycloid disc 21 by the second steel ball 6.
Self-lubricating set 11 is arranged on steering wheel column 15, self-lubricating set 11 is tightly fitted in the endoporus of motor shaft 16.
Steering wheel column 15 is fixedly connected by key or tensioning sleeve 27 with hollow output shaft 1.
Hollow output shaft 1 is by second bearing 23 and the rotational support of 3rd bearing 25 on motor shaft 16 or hollow output
Axle 1 is by a two-row ball bearing rotational support on motor shaft 16.
The center line of cycloid slotted disk 21 meets cycloid equation：
X=R*cos (t)+e*cos (N*t), Y=R*sin (t)-e*sin (N*t)；
The cycloid equation that the end face cycloid groove 31 of hollow output shaft 1 meets is：
X=R*cos (t)-e*cos (N*t), Y=R*sin (t)-e*sin (N*t),
Wherein X is the abscissa of certain point on curve, and Y is the ordinate of respective point,
N is the quantity of meshing point when internal and external cycloids are engaged,
E is eccentric throw, and t is the angle between any point and origin of coordinates line and X-axis on cycloid,
R is the base radius for generating cycloid；
The span of angle t is 0 °~360 °, R=cycloid disc radiuses * (0.6~0.85), N=2* speed reducing ratio+1, e's
Span is 0.5~3；
Bar-shaped trough arrangement on two-sided slotted disk 20, cycloid disc 21 and one side slotted disk 7 is identical, wherein on one side slotted disk 7,
Upper row's bar-shaped trough 7-1, lower row's bar-shaped trough 7-2, left column bar-shaped trough 7-3, right row bar shaped are respectively provided with corresponding to through hole upper and lower ends
Groove 7-4, upper row's bar-shaped trough 7-1 lower sections two ends are respectively provided with two bar-shaped troughs, and lower row's bar-shaped trough 7-2 tops two ends are respectively provided with two
Individual bar-shaped trough, upper row's bar-shaped trough 7-1, lower row's bar-shaped trough 7-2 include four bar-shaped troughs, left column bar-shaped trough 7-3, right row bar
Shape groove 7-4 includes three bar-shaped troughs；The structure on the two sides of two-sided slotted disk 20 differs 90 degree；The cycloid groove, bar-shaped trough it is transversal
Face is circular arc, and the circular arc is engaged with the first steel ball 22, the second steel ball 6.
It is fastenedly connected by fixing bolt 8 between decelerator shell 3, gap adjusting pad 19, one side slotted disk 7 and motor.
The lower end diameter of axle surface of hollow output shaft 1 sets the first encoder 2, and the first encoder 2 passes through the spacing fixation of aluminium ring 26.
Motor includes the machine winding 10 being arranged in motor casing, and rotor 17 is sheathed on motor shaft 16 and is placed in electricity
The inner ring of machine winding 10, the two ends of the rotor 17 pass through motor bearings 1, the spacing fixation of motor bearings 2 18, motor respectively
Bearing 2 18 is installed on motor front end cover 9, and motor front end cover 9 is fixedly connected on motor casing, the upper surface of motor bearings 1
Motor encoder 13, motor encoder 13 and the synchronous axial system of motor shaft 16 are set, and the outer ring of motor encoder 13 sets cushion 14,
The one end of cushion 14 is pressed in the outer ring of motor bearings 1, and the other end is held out against on motor casing.
The course of work of the invention is as follows：Clutch shaft bearing 5 is assemblied on motor shaft 16, while axle has a bias herein
Amount e, can form eccentric cam motion.I.e. with the rotation of motor shaft 16, this bias promotes clutch shaft bearing 5 to do eccentric revolution.
Clutch shaft bearing 5 drives cycloid disc 21 to do eccentric revolution.The motion of cycloid disc 21 is constrained by two-sided slotted disk 20, therefore cycloid disc 21 does row
Star gyration.
Product of the present invention is suitable to the selection of Motor of steering wheel power-assisted：The power of motor in 150w--350w, its output torque
In 1.5NM--3NM, motor speed 1000RPM--2000RPM (band idling speed).
Planetary steel ball reducing gear can set speed reducing ratio in coordinate size, the curve of interference fit different parameters
Count into 1:10 to 1:20.So, the actual moment of torsion in reducing gear output shaft end is from minimum 15NM to 60NM.Rotating speed is in 100--
Between 200RPM.
First encoder 2 and motor encoder 13, according to demand for control, can only use one of those.First encoder 2
It is that, in output end, motor encoder 13 is mounted in motor shaft end.
When in use, motor housing is connected by fixed support 29 and vehicle chassis.Wheel 28 is formed directly into planetary steel ball
The hollow shaft of reducing gear is simultaneously coupled output end.The moment of torsion of motor is amplified by ball planet reducing gear, direct drive
The vehicle of shaft.Avoid distinguishing driving moment using Double half axle, the transmission mechanism such as belt or gear, chain can be saved.
The intensity for weakening wheel shaft is avoided, security is improved.
Operation principle of the invention is as follows：When steering wheel column 15 is rotated by driver toward certain side, steering wheel column 15 passes through
The tensioner component of tensioning sleeve 27 drives the encoder 2 of hollow output shaft 1 and first to rotate, and now encoder provides steering wheel column 15 and rotates
Direction and rate signal to controller (ECU), to motor, motor is according to this for the signal of controller (ECU) output control motor
Signal and program setting start rotation, then eccentric shaft promotes clutch shaft bearing 5 and cycloid disc 21 to turn round, and this gyration is by the
Two steel ball 6 promotes hollow output shaft 1 to rotate.The output torque of so motor is amplified by key or the side of passing to of tensioning sleeve 27
To disk post 15, smoothly turn to.If without the signal that controller is given, motor is in holding state.Wait next signal.
Claims (8)
1. a kind of pipe column type electric servo steering device, including motor, motor output end connection reducing gear, it is characterised in that：
Motor shaft (16) be axially through hollow structure, motor shaft (16) extended in reducing gear；The reducing gear includes turning
The dynamic hollow output shaft (1) for being arranged at motor shaft (16) output end, steering wheel column (15) is rotated and is arranged at motor shaft (16) endoporus
In, steering wheel column (15) lower end is linked with hollow output shaft (1), and motor shaft (16) diameter of axle surface decentration portion (30) tight fit is set
Clutch shaft bearing (5), cycloid disc (21) is equipped with clutch shaft bearing (5) outer ring, the cycloid groove of hollow output shaft (1) inner face with
The cycloid groove of the side surface of cycloid disc (21) is coordinated by the first steel ball (22)；Motor bottom end face sets gradually one side slotted disk
(7), gap adjusting pad (19), decelerator shell (3) is pressed on gap adjusting pad (19), and is fastenedly connected with motor, is slowed down
Machine shell (3) supports interval, decelerator shell (3) and hollow output shaft with hollow output shaft (1) axially through thrust bearing (4)
(1) radial through oil sealing (24) seal；In decelerator shell (3) inner chamber, corresponding to one side slotted disk (7) and cycloid disc (21) it
Between two-sided slotted disk (20) is set, the bar-shaped trough of two-sided slotted disk (20) both side surface passes through the second steel ball (6) and one side respectively
Bar-shaped trough on slotted disk (7), cycloid disc (21) is engaged.
2. pipe column type electric servo steering device as claimed in claim 1, it is characterised in that：Covered on the steering wheel column (15)
If from self-lubricating set (11), self-lubricating set (11) is tightly fitted in motor shaft (16) endoporus.
3. pipe column type electric servo steering device as claimed in claim 1, it is characterised in that：The steering wheel column (15) passes through
Key or tensioning sleeve (27) are fixedly connected with hollow output shaft (1).
4. pipe column type electric servo steering device as claimed in claim 1, it is characterised in that：The hollow output shaft (1) is led to
Second bearing (23) and 3rd bearing (25) rotational support are crossed on motor shaft (16) or hollow output shaft (1) is double by one
Row ball bearing rotational support is on motor shaft (16).
5. pipe column type electric servo steering device as claimed in claim 1, it is characterised in that：In the cycloid slotted disk (21)
Heart line meets cycloid equation：
X=R*cos (t)+e*cos (N*t), Y=R*sin (t)-e*sin (N*t)；
The cycloid equation that the end face cycloid groove (31) of hollow output shaft (1) meets is：
X=R*cos (t)-e*cos (N*t), Y=R*sin (t)-e*sin (N*t)；
Wherein X is the abscissa of certain point on curve, and Y is the ordinate of respective point；
N is the quantity of meshing point when internal and external cycloids are engaged；
E is eccentric throw, and t is the angle between any point and the line and X-axis of the origin of coordinates on cycloid；
R is the base radius for generating cycloid；
The span of angle t is 0 °~360 °, R=cycloid disc radiuses * (0.6~0.85), N=2* speed reducing ratio+1, the value of e
Scope is 0.5~3；
Bar-shaped trough arrangement on two-sided slotted disk (20), cycloid disc (21) and one side slotted disk (7) is identical, wherein one side slotted disk
(7) upper row's bar-shaped trough (7-1), lower row's bar-shaped trough (7-2), left column bar-shaped trough (7- are respectively provided with, corresponding to through hole upper and lower ends
3), right row bar-shaped trough (7-4), upper row's bar-shaped trough (7-1) lower section two ends are respectively provided with two bar-shaped troughs, lower row's bar-shaped trough (7-2)
Top two ends are respectively provided with two bar-shaped troughs, and upper row's bar-shaped trough (7-1), lower row's bar-shaped trough (7-2) include four bar shapeds
Groove, left column bar-shaped trough (7-3), right row bar-shaped trough (7-4) include three bar-shaped troughs；The structure difference on two-sided slotted disk (20) two sides
90 degree；The cycloid groove, the cross section of bar-shaped trough are circular arc, and the circular arc and the first steel ball (22), the second steel ball (6) match
Close.
6. pipe column type electric servo steering device as claimed in claim 1, it is characterised in that：The decelerator shell (3),
Gap adjusting pad (19), one side slotted disk (7) are fastenedly connected and motor between by fixing bolt (8).
7. pipe column type electric servo steering device as claimed in claim 1, it is characterised in that：Under the hollow output shaft (1)
End diameter of axle surface sets the first encoder (2), and the first encoder (2) is by aluminium ring (26) spacing fixation.
8. pipe column type electric servo steering device as claimed in claim 1, it is characterised in that：The motor includes being arranged at electricity
Machine winding (10) in casing, rotor (17) is sheathed on motor shaft (16) and is placed in machine winding (10) inner ring, institute
State rotor (17) two ends and pass through motor bearings one (12), the spacing fixation of motor bearings two (18), motor bearings two respectively
(18) it is installed on motor front end cover (9), motor front end cover (9) is fixedly connected on motor casing, the upper end of motor bearings one (12)
Face sets motor encoder (13), motor encoder (13) and motor shaft (16) synchronous axial system, and motor encoder (13) outer ring sets
Cushion (14) is put, cushion (14) one end is pressed in the outer ring of motor bearings one (12), and the other end is held out against on motor casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243731.2A CN106864587A (en) | 2017-04-14 | 2017-04-14 | Pipe column type electric servo steering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243731.2A CN106864587A (en) | 2017-04-14 | 2017-04-14 | Pipe column type electric servo steering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106864587A true CN106864587A (en) | 2017-06-20 |
Family
ID=59162182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710243731.2A Withdrawn CN106864587A (en) | 2017-04-14 | 2017-04-14 | Pipe column type electric servo steering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106864587A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090831A (en) * | 2021-03-17 | 2021-07-09 | 同济大学 | Fluid conveying method and device for realizing large reduction ratio and pipeline return joint function |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5904224A (en) * | 1996-09-24 | 1999-05-18 | Mitsuba Corporation | Electric power steering unit |
| JP2008133861A (en) * | 2006-11-27 | 2008-06-12 | Ogino Kogyo Kk | Rocking gear device |
| CN103375539A (en) * | 2012-04-25 | 2013-10-30 | 吴小杰 | Self-braking cycloidal reducer of aerial cableway |
| CN203472983U (en) * | 2013-10-15 | 2014-03-12 | 河北联合大学 | Swing line and steel ball planetary reduction gear |
| CN103883683A (en) * | 2014-03-19 | 2014-06-25 | 江苏泰隆减速机股份有限公司 | Single-stage rigid tooth surface cycloid steel ball planetary gear reducer |
| CN105667581A (en) * | 2016-03-22 | 2016-06-15 | 王亚莉 | Compact steering column type automobile electric power assisting device |
| CN206914419U (en) * | 2017-04-14 | 2018-01-23 | 无锡市宝通流体设备有限公司 | Pipe column type electric servo steering device |
-
2017
- 2017-04-14 CN CN201710243731.2A patent/CN106864587A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5904224A (en) * | 1996-09-24 | 1999-05-18 | Mitsuba Corporation | Electric power steering unit |
| JP2008133861A (en) * | 2006-11-27 | 2008-06-12 | Ogino Kogyo Kk | Rocking gear device |
| CN103375539A (en) * | 2012-04-25 | 2013-10-30 | 吴小杰 | Self-braking cycloidal reducer of aerial cableway |
| CN203472983U (en) * | 2013-10-15 | 2014-03-12 | 河北联合大学 | Swing line and steel ball planetary reduction gear |
| CN103883683A (en) * | 2014-03-19 | 2014-06-25 | 江苏泰隆减速机股份有限公司 | Single-stage rigid tooth surface cycloid steel ball planetary gear reducer |
| CN105667581A (en) * | 2016-03-22 | 2016-06-15 | 王亚莉 | Compact steering column type automobile electric power assisting device |
| CN206914419U (en) * | 2017-04-14 | 2018-01-23 | 无锡市宝通流体设备有限公司 | Pipe column type electric servo steering device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090831A (en) * | 2021-03-17 | 2021-07-09 | 同济大学 | Fluid conveying method and device for realizing large reduction ratio and pipeline return joint function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8235165B2 (en) | Electromechanical power steering system with a ball screw drive | |
| US20170137086A1 (en) | Bicycle drive unit | |
| ATE400488T1 (en) | SPEED SUPERMEDIATE DEVICE WITH AUXILIARY DRIVE | |
| CN103770893B (en) | Bicycle drive unit | |
| CN109850006A (en) | Auxiliary device | |
| TW201726482A (en) | Driving device for use in bicycle ican further perform control in response to driving condition | |
| CN108603577A (en) | Electric actuator | |
| CN104943813B (en) | Ring-type type buncher and the built-in variable speed hub of bicycle use using the speed changer | |
| JP2009101800A5 (en) | ||
| CN108884921A (en) | Electric actuator | |
| CN107499112A (en) | Drive device and the wheel for possessing drive device | |
| CN108886303A (en) | Electric actuator | |
| CN102442399B (en) | Built-in transmission device of pedal electric power-assisted bicycle without manual speed regulation | |
| CN206914419U (en) | Pipe column type electric servo steering device | |
| CN106864587A (en) | Pipe column type electric servo steering device | |
| JP2007078174A (en) | Power transmission device | |
| CN208813364U (en) | Steering wheel driving device and mechanical equipment with Cycloidal pin-wheel drive mechanism | |
| CN104494693B (en) | Mechanical hydraulic power-assisted steering adaptive energy-saving device | |
| CN205819312U (en) | A kind of steering tube pillar electric booster | |
| CN102501939B (en) | Pedal electric power-assisted bicycle with transmission integration and without manual speed regulation | |
| CN100390001C (en) | Speed reduction gear of electric power steering device | |
| CN208630693U (en) | A kind of passenger car electric servo steering device | |
| JP2017190118A (en) | Adaptive front steering system of vehicle | |
| CN104500687B (en) | Torque guide differential | |
| CN207157413U (en) | A kind of Split type electric force driving device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170620 |