CN103010296A - Independent steering device for four wheels of aircraft traction truck - Google Patents
Independent steering device for four wheels of aircraft traction truck Download PDFInfo
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- CN103010296A CN103010296A CN 201110285392 CN201110285392A CN103010296A CN 103010296 A CN103010296 A CN 103010296A CN 201110285392 CN201110285392 CN 201110285392 CN 201110285392 A CN201110285392 A CN 201110285392A CN 103010296 A CN103010296 A CN 103010296A
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- steering
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- steering device
- aircraft
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Abstract
The invention provides an independent steering device for four wheels of an aircraft traction truck. The independent steering device mainly comprises an axle, a steering oil cylinder, a proportion control valve and related electric control units. In the steering system, four oil cylinders respectively control the four wheels, the steering angle of each wheel in various steering modes can be accurately controlled through the electric control units so as to ensure that the steering centers of all wheels are coincident at the same point, the friction loss of power can be furthest reduced, the resource utilization rate can be improved, the steering wear of tires can be reduced and the service life of the tire can be prolonged.
Description
Technical field:
The present invention and ground service specialized equipment field, airport relate in particular to a kind of for the control aircraft tractor four-wheel independent steering assembly.
Background technology:
Aircraft towing is a kind of for the ground-support equipment at airport ground auxiliary moving aircraft, with self powerful tractive force by draw bar pushing tow or towing aircraft.Because the traction stability requirement is high, working environment is narrow, so turning to of aircraft towing made higher requirement.
Traditional aircraft towing turns to, and adopts a road driving vehicle bridge, and when aircraft towing was done common turning to, the steering trapezium of vehicle bridge just played a role like this, guaranteed the Vehicular turn center, reduced wear on tyres.But when the crab row of doing the aircraft towing specific (special) requirements turns to, steering track rod has just limited the inclination angle of wheel, cause tilting of wheels angle inconsistent, will produce huge side friction to wheel in the form process, cause the serious emery wheel of wheel, not only strengthened the operation cost of vehicle, serious potential safety hazard has also been arranged.
The present invention is in order to overcome the application shortcoming of traditional Ackermann steering gear on aircraft towing, remove vehicle bridge steering track rod (or adopting adjustable stable pull bar) and respectively each wheel rim is set up independently steering cylinder and steering angle sensor, control the angle requirement that difference turns to by sensor acquisition angles information.
Summary of the invention:
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of more rational aircraft tractor four-wheel independent steering assembly.When aircraft towing carried out turning to of different mode, the stability that turns to that improves had greatly also reduced the wearing and tearing of tire.
Technical solution of the present invention is as follows: connect respectively independently steering cylinder on four wheel hubs of vehicle bridge, the passing ratio valve is controlled the delivery quality of oil cylinder.Wheel hub is provided with angular transducer.Behind engine starting, the angle information of moment collection vehicle tire, angle information feeds back to ECU.In order to guarantee the reasonable of steering angle, in ECU, set up various four deflection angles of pattern that turn to and close system/program, when angle does not satisfy the steering angle relation be not, will send electric signal to relevant apportioning valve, adjust steering angle by steering cylinder independently, be fit to guarantee that tire drift angle relation is in the most stable a kind of state.
Advantage of the present invention is, turns to the drift angle relationship technology to incorporate automatic control technology at aircraft towing first, and traditional Ackermann of breakthrough turns to the restriction that turns to for the crab row, can realize freely that the crab type turns to and pivot stud.
Description of drawings:
Accompanying drawing 1 is car load steering swivel system sketch:
Accompanying drawing 2 is front-wheel independent steering principle.
Accompanying drawing 3 is trailing wheel independent steering principle.
Accompanying drawing 4 is Eight characters steering principle.
Accompanying drawing 5 is crab type steering principle.
The specific embodiment:
1. be steering cylinder: each wheel all is equipped with an independently steering cylinder;
2. be ECU (Electrical Control Unit): in steering procedure, ECU (Electrical Control Unit) is responsible for gathering Turning radius information, and by 3. controlling deflection angle;
3. be proportion magnetic valve: proportion magnetic valve is controlled oil cylinder character by control turnover oil mass after the information of accepting 2., reach the purpose of control wheel turning angle;
4. be vehicle bridge: this vehicle bridge breaks through tradition with the mechanical type deflection angle control principle of steering track rod, adopts electronics package control deflection angle, and is more accurate, more reasonable.
5. be tire.
Claims (3)
1. aircraft towing steering technique, its feature are controlled the relation of each wheel turning angle at the stroke by ECU (Electrical Control Unit) control steering cylinder.
2. described aircraft towing steering hardware according to claim 1 is characterized in that each wheel hub is equipped with respectively a steering cylinder.
3. described aircraft towing steering hardware according to claim 1 is characterized in that the relation of wheel turning angle is controlled by ECU (Electrical Control Unit).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110285392 CN103010296A (en) | 2011-09-23 | 2011-09-23 | Independent steering device for four wheels of aircraft traction truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110285392 CN103010296A (en) | 2011-09-23 | 2011-09-23 | Independent steering device for four wheels of aircraft traction truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103010296A true CN103010296A (en) | 2013-04-03 |
Family
ID=47959549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110285392 Pending CN103010296A (en) | 2011-09-23 | 2011-09-23 | Independent steering device for four wheels of aircraft traction truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103010296A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110509990A (en) * | 2019-07-31 | 2019-11-29 | 上海航福机场设备有限公司 | Positive system is returned in position in a kind of four-wheel drive vehicle four-wheel |
| CN110936876A (en) * | 2019-12-03 | 2020-03-31 | 贵州航天特种车有限责任公司 | Airport is with quick loading and unloading platform |
-
2011
- 2011-09-23 CN CN 201110285392 patent/CN103010296A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110509990A (en) * | 2019-07-31 | 2019-11-29 | 上海航福机场设备有限公司 | Positive system is returned in position in a kind of four-wheel drive vehicle four-wheel |
| CN110936876A (en) * | 2019-12-03 | 2020-03-31 | 贵州航天特种车有限责任公司 | Airport is with quick loading and unloading platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Huang Haiqin Document name: Notification of before Expiration of Request of Examination as to Substance |
|
| DD01 | Delivery of document by public notice |
Addressee: Huang Haiqin Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |