CN107284520A - A kind of electrical servo steering mechanism that overload protection is provided - Google Patents
A kind of electrical servo steering mechanism that overload protection is provided Download PDFInfo
- Publication number
- CN107284520A CN107284520A CN201710463042.2A CN201710463042A CN107284520A CN 107284520 A CN107284520 A CN 107284520A CN 201710463042 A CN201710463042 A CN 201710463042A CN 107284520 A CN107284520 A CN 107284520A
- Authority
- CN
- China
- Prior art keywords
- steering
- swing arm
- deflecting roller
- pull bar
- coupling sleeve
- 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.)
- Pending
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
- B62D5/0418—Electric motor acting on road wheel carriers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B69/00—Steering of agricultural machines or implements; Guiding agricultural machines or implements on a desired track
- A01B69/007—Steering or guiding of agricultural vehicles, e.g. steering of the tractor to keep the plough in the furrow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/20—Links, e.g. track rods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Power Steering Mechanism (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
A kind of electrical servo steering mechanism that overload protection is provided; wherein; turning to swing arm includes upper steering swing arm and lower steering; swing arm movable motor is connected with deflecting roller; expansion coupling sleeve is arranged on the steering motor axle of servomotor, is placed in turning in swing arm one end, and upper steering swing arm other end is connected with pull bar one end; the pull bar other end is connected with lower steering swing arm, and lower steering swing arm is arranged on deflecting roller inner wheel hub；Deflecting roller is walked under movable motor driving, during steering, servomotor sends steering order, power is transferred to oscillating bearing through expansion coupling sleeve with upper steering swing arm, steering power is transferred into deflecting roller by pull bar again promotes deflecting roller to act, car body lateral sliding is effectively reduced, and then improves grass-cutting vehicle and turns to efficiency；When deflecting roller is by greater impact load, during transmission moment of torsion specified more than expansion coupling sleeve, with holding axle tightly the deflection of certain angle occurs for expansion coupling sleeve so that servomotor is not damaged with electrical servo steering mechanism.
Description
Technical field
Machine is turned to the present invention relates to servo steering technical field, more particularly to a kind of electrical servo for providing overload protection
Structure.
Background technology
Current most of airport mowing vehicle steering mechanisms are all to use automobile parallelogram steering mechanism, recycle hydraulic pressure
Power-assisted promotes two wheels to be turned at an angle, and because of the intrinsic steering feature of parallelogram steering mechanism, front-wheel is appointed
The corner of one electronic-controlled power steering wheel is identical with another corner, under such a state, when four-wheel car body is turned to, wheel
Easily occurs lateral sliding with ground, so as to influence the steering stability and accuracy of grass-cutting vehicle.
The content of the invention
Technical problem solved by the invention is a kind of electrical servo steering mechanism for providing overload protection of offer, with
Solve the shortcoming in above-mentioned background technology.
Technical problem solved by the invention is realized using following technical scheme：
A kind of electrical servo steering mechanism that overload protection is provided, including movable motor, servomotor, a pair turn to swing arm,
Expansion coupling sleeve, pull bar and deflecting roller；Wherein, turning to swing arm includes upper steering swing arm and lower steering, and swing arm movable motor is with turning
To wheel connection, expansion coupling sleeve is arranged on the steering motor axle of servomotor, is placed in turning in swing arm one end, upper to turn to
Swing arm other end is connected with pull bar one end, and the pull bar other end is connected with lower steering swing arm, and lower steering swing arm is arranged in deflecting roller
On wheel hub.
In the present invention, adjusting nut is provided with pull bar, deflecting roller after frequently turning to after a while, steering angle
When initial position and control angle have deviation, pass through adjusting nut（Adjust clockwise or counterclockwise）Return positive deflecting roller
Initial position, so as to recover control accuracy.
In the present invention, the pull bar other end is connected by oscillating bearing with lower steering swing arm.
In the present invention, deflecting roller is walked under movable motor driving, and during steering, servomotor sends steering order, is moved
Power is transferred to oscillating bearing through expansion coupling sleeve with upper steering swing arm, then steering power is transferred to deflecting roller and promoted by process pull bar
Deflecting roller is acted；When deflecting roller is by greater impact load, during transmission moment of torsion specified more than expansion coupling sleeve, expansion coupling sleeve with
The deflection of certain angle occurs for the steering motor axle held tightly so that servomotor is not damaged with electrical servo steering mechanism.
Beneficial effect：
1）This invention simplifies complexity of the large-scale grassland mowing vehicle steering mechanism in terms of machine driving so that install and more
Part is changed to be more prone to；
2）The present invention is in the case where two motors drive, and deflecting roller is accurately turned to corresponding steering angle respectively, and steering procedure more becomes
It is effective to reduce car body lateral sliding in Ackermann steering principle, and then improve grass-cutting vehicle steering efficiency；
3）The present invention applies expansion coupling sleeve in this steering mechanism, swollen when grass-cutting vehicle is by huge moment impact load
Tight coupling sleeve provides overload protection, occurs the deflection of certain angle with steering motor axle automatically, so as to protect servomotor and whole
Individual steering gear is not damaged.
Brief description of the drawings
Fig. 1 is the top view of presently preferred embodiments of the present invention.
Fig. 2 is the front view of presently preferred embodiments of the present invention.
Fig. 3 is the side view of presently preferred embodiments of the present invention.
Fig. 4 is the pull bar scheme of installation in presently preferred embodiments of the present invention.
Fig. 5 is A-A sectional views in Fig. 4.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are readily apparent from clearly, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
Referring to a kind of electrical servo steering mechanism for providing overload protection of Fig. 1~5, including movable motor 1, servo electricity
Machine 2, it is upper steering swing arm 3, it is lower steering swing arm 4, expansion coupling sleeve 5, pull bar 6, adjusting nut 7, oscillating bearing 8, deflecting roller 9 and turn
To motor shaft 10；Wherein, movable motor 1 is connected with deflecting roller 9, and expansion coupling sleeve 5 is arranged on the steering motor axle of servomotor 2
On 10, it is placed in turning in the one end of swing arm 3, the upper steering other end of swing arm 3 is connected with the one end of pull bar 6, and the other end of pull bar 6 passes through
Oscillating bearing 8 is connected with lower steering swing arm 4, and lower steering swing arm 4 is arranged on the inner wheel hub of deflecting roller 9, and is provided with pull bar 6
Adjusting nut 7.
Deflecting roller 9 is walked under the driving of movable motor 1, and during steering, servomotor 2 sends steering order, and power is through swelling
Coupling sleeve 5 is transferred to oscillating bearing 8 with upper steering swing arm 3, then steering power is transferred to deflecting roller 9 and promotes to turn by process pull bar 6
Acted to wheel 9, deflecting roller 9, can when steering angle initial position and control angle have deviation after frequently turning to after a while
Pass through adjusting nut 7（Adjust clockwise or counterclockwise）The initial position of positive deflecting roller 9 back and forth, so as to recover control essence
Exactness；When deflecting roller 9 is by greater impact load, during transmission moment of torsion specified more than expansion coupling sleeve 5, expansion coupling sleeve 5 and institute
The deflection of certain angle occurs for the steering motor axle 10 of holding so that servomotor 2 is not damaged with electrical servo steering mechanism；
According to Ackermann steering principle, four-wheel car body should all be turned at the steering moment with corresponding different angles, ability
Ensure that with ground lateral sliding does not occur for wheel, to solve this problem, two motors are set, in the case where two motors drive, turn to
Wheel 9 is accurately turned to corresponding steering angle respectively, and steering procedure is more intended to Ackermann steering principle, lateral to reduce car body
Slide, effectively improve grass-cutting vehicle and turn to efficiency, not only simplify steering mechanical structure, and greatly strengthen steering control
Flexibility processed, reduces control system complexity；In addition, also carrying overload protection function, heavy shock loads can be prevented effectively from
The damage of lower steering motor.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (4)
1. a kind of electrical servo steering mechanism for providing overload protection, it is characterised in that including movable motor, servomotor,
A pair of steering swing arms, expansion coupling sleeve, pull bar and deflecting roller；Wherein, turning to swing arm includes upper steering swing arm and lower steering, swing arm
Movable motor is connected with deflecting roller, and expansion coupling sleeve is arranged on the steering motor axle of servomotor, is placed in steering swing arm
In one end, upper steering swing arm other end is connected with pull bar one end, and the pull bar other end is connected with lower steering swing arm, lower steering swing arm peace
On deflecting roller inner wheel hub.
2. a kind of electrical servo steering mechanism that overload protection is provided according to claim 1, it is characterised in that pull bar
On be provided with adjusting nut.
3. a kind of electrical servo steering mechanism that overload protection is provided according to claim 1, it is characterised in that pull bar
The other end is connected by oscillating bearing with lower steering swing arm.
4. a kind of electrical servo steering mechanism that overload protection is provided according to any one of claims 1 to 3, its feature
It is, deflecting roller is walked under movable motor driving, and during steering, servomotor sends steering order, and power is through expansion coupling sleeve
Being transferred to oscillating bearing with upper steering swing arm, then steering power is transferred into deflecting roller by pull bar promotes deflecting roller to act；When
Deflecting roller is by greater impact load, during transmission moment of torsion specified more than expansion coupling sleeve, expansion coupling sleeve and the steering held tightly
The deflection of certain angle occurs for motor shaft so that servomotor is not damaged with electrical servo steering mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710463042.2A CN107284520A (en) | 2017-06-19 | 2017-06-19 | A kind of electrical servo steering mechanism that overload protection is provided |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710463042.2A CN107284520A (en) | 2017-06-19 | 2017-06-19 | A kind of electrical servo steering mechanism that overload protection is provided |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107284520A true CN107284520A (en) | 2017-10-24 |
Family
ID=60096484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710463042.2A Pending CN107284520A (en) | 2017-06-19 | 2017-06-19 | A kind of electrical servo steering mechanism that overload protection is provided |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107284520A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112829821A (en) * | 2019-11-22 | 2021-05-25 | 财团法人工业技术研究院 | Steering device and method |
| CN114435467A (en) * | 2022-03-11 | 2022-05-06 | 中铁四局集团有限公司 | Steering mechanism and beam transporting vehicle |
| US11603133B2 (en) | 2020-08-19 | 2023-03-14 | Honda Motor Co., Ltd. | Steering apparatus |
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| FR2896471A3 (en) * | 2006-01-24 | 2007-07-27 | Renault Sas | VEHICLE COMPRISING DIRECTION CONTROL WITHOUT MECHANICAL CONNECTION |
| CN201006725Y (en) * | 2006-08-07 | 2008-01-16 | 浙江吉利汽车研究院有限公司 | Fourth wheel positioning inclination angle regulating mechanism |
| CN104608415A (en) * | 2015-02-12 | 2015-05-13 | 江苏扬力数控机床有限公司 | Hollow type servo main transmission mechanism used for numerical control turret punch press |
| CN105799503A (en) * | 2016-05-24 | 2016-07-27 | 杭州伯坦科技工程有限公司 | Electric car chassis assembly capable of achieving four-wheel wheel-side-motor drive and four-wheel independent turning and control method |
| CN206107323U (en) * | 2016-09-13 | 2017-04-19 | 北京汽车研究总院有限公司 | Car steering linkage assembly and car |
-
2017
- 2017-06-19 CN CN201710463042.2A patent/CN107284520A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2896471A3 (en) * | 2006-01-24 | 2007-07-27 | Renault Sas | VEHICLE COMPRISING DIRECTION CONTROL WITHOUT MECHANICAL CONNECTION |
| CN201006725Y (en) * | 2006-08-07 | 2008-01-16 | 浙江吉利汽车研究院有限公司 | Fourth wheel positioning inclination angle regulating mechanism |
| CN104608415A (en) * | 2015-02-12 | 2015-05-13 | 江苏扬力数控机床有限公司 | Hollow type servo main transmission mechanism used for numerical control turret punch press |
| CN105799503A (en) * | 2016-05-24 | 2016-07-27 | 杭州伯坦科技工程有限公司 | Electric car chassis assembly capable of achieving four-wheel wheel-side-motor drive and four-wheel independent turning and control method |
| CN206107323U (en) * | 2016-09-13 | 2017-04-19 | 北京汽车研究总院有限公司 | Car steering linkage assembly and car |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112829821A (en) * | 2019-11-22 | 2021-05-25 | 财团法人工业技术研究院 | Steering device and method |
| CN112829821B (en) * | 2019-11-22 | 2022-06-21 | 财团法人工业技术研究院 | Steering apparatus and method |
| US11548552B2 (en) | 2019-11-22 | 2023-01-10 | Industrial Technology Research Institute | Steering device and method thereof |
| US11603133B2 (en) | 2020-08-19 | 2023-03-14 | Honda Motor Co., Ltd. | Steering apparatus |
| DE102021120244B4 (en) | 2020-08-19 | 2024-06-13 | Honda Motor Co., Ltd. | Steering device with steering drive source and manual toe angle adjustment mechanism |
| CN114435467A (en) * | 2022-03-11 | 2022-05-06 | 中铁四局集团有限公司 | Steering mechanism and beam transporting vehicle |
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| 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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171024 |