CN202827713U - Hydraulic steering and alignment system - Google Patents
Hydraulic steering and alignment system Download PDFInfo
- Publication number
- CN202827713U CN202827713U CN 201220278634 CN201220278634U CN202827713U CN 202827713 U CN202827713 U CN 202827713U CN 201220278634 CN201220278634 CN 201220278634 CN 201220278634 U CN201220278634 U CN 201220278634U CN 202827713 U CN202827713 U CN 202827713U
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- oil cylinder
- steering
- electromagnetic valve
- controller
- angle sensor
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Abstract
The utility model belongs to the control system of vehicle steering, and particularly relates to a hydraulic steering and alignment system. The hydraulic steering and alignment system comprises an electromagnetic valve, a left front oil cylinder, a right front oil cylinder, a left back oil cylinder and a right back oil cylinder. The left front oil cylinder and the right front oil cylinder are respectively connected with a front steering knuckle arm. The left back oil cylinder and the right back oil cylinder are respectively connected with a back steering knuckle arm. The hydraulic steering and alignment system is characterized by further comprising a controller, a front angle sensor and a back angle sensor. The front angle sensor is arranged on the front steering knuckle arm. The back angle sensor is arranged on the back steering knuckle arm. Voltage signals are sent to the controller by the front angle sensor and the back angle sensor. The controller is connected with coils of the left end and the right end of the electromagnetic valve. The hydraulic steering and alignment system has the advantages of achieving automatic alignment, reducing abrasion of wheels, prolonging service life of the wheels, and solving the problems that efficiency of the steering and alignment of an existing heavy type engineering vehicle is low and operation is complicated.
Description
Technical field
The utility model belongs to vehicle steering control system, is specifically related to a kind of fluid-link steering center support system.
Background technology
For vehicle, fluid-link steering control system commonly used is controlled turning to of vehicle.Its steering swivel system because pipeline air amount and hydraulic actuating cylinder are let out in existing, causes to turn to low precision in use for some time, turns to phase delay.After in use tire is impacted, can cause when straight-line travelling, front and back group wheel is not point-blank.For this reason, need to adjust the relative position of front and back group wheel, make it the angle relation that keeps correct, thereby reduce the wearing and tearing of wheel.In the routine inspection process, if the group wheel concerns mal before and after finding, then should adjust.Large-tonnage multiaxis engineering truck steering swivel system mainly adopts front-wheel or rear-axle steering centering at present, when adopting front-wheel centering, at first trailing wheel is ajusted, and is locked trailing wheel mechanically, then rotates steering hardware, and front-wheel is ajusted.The patent No. is that the application of CN201020528238.9 discloses a kind of vehicle two-way driving all hydraulic steering system, formed by front and back steeraxle and hydraulic control system, the front and back steeraxle is arranged symmetrically with respect to the car load cross central line, two oil cylinders are set on every root bridge, be called left front oil cylinder, right front oil cylinder, left back oil cylinder and right back oil cylinder, left front oil cylinder and right front oil cylinder are connected on the arm for steering knuckle of right hand and left hand of front steering axle, are arranged symmetrically with respect to the bridge line of centers; Left back oil cylinder and right back oil cylinder are connected on the arm for steering knuckle of right hand and left hand of rear steering bridge, are arranged symmetrically with respect to the bridge line of centers; Hydraulic control system mainly comprises front steering device, rear steering device, front electromagnetic valve, rear electromagnetic valve, front Two-way flow ball valve, rear Two-way flow ball valve, front ball valve and rear ball valve.At first by steering hardware the steeraxle vehicle wheel put-straight, the closed front/rear Two-way flow ball valve that is installed on the front/rear steering cylinder oil circuit then cuts off the oil circuit of front/rear oil cylinder, rotate again at last steering hardware realize after/the oil-filled degassing function of front oil cylinder.Although steeraxle collaborative turned to or the turning to separately of arbitrary bridge before and after this technology can realize, that realizes simultaneously front-rear axle turns to centering and the oil-filled degassing function of oil cylinder, and whole operating process is complexity comparatively, particularly turns to the centering inefficiency.
The utility model content
Technical problem to be solved in the utility model provides and a kind ofly can realize the multi-axle steering automatic centering, fluid-link steering center support system easy and simple to handle, that efficient is high.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of fluid-link steering center support system comprises electromagnetic valve and left front oil cylinder, right front oil cylinder, left back oil cylinder and right back oil cylinder; Described left front oil cylinder, right front oil cylinder are connected with front steering joint arm respectively, described left back oil cylinder be connected oil cylinder and be connected with rear steering joint arm respectively, also comprise controller and forward and backward angular transducer, described front angle installation of sensors is on front steering joint arm, described rear angle installation of sensors is on rear steering joint arm, forward and backward angular transducer sends to described controller with voltage signal, and described controller is connected with two end-coils about described electromagnetic valve.
Described fluid-link steering center support system also comprises hydraulic lock, described electromagnetic valve A mouth links to each other with an oil inlet of described hydraulic lock, described electromagnetic valve B mouth links to each other with another oil inlet of described hydraulic lock, an oil outlet of described hydraulic lock is connected to the loculus of described left front oil cylinder and described right back oil cylinder, another oil outlet is connected to the loculus of described right front oil cylinder and described left back oil cylinder, and the T mouth of described electromagnetic valve is directly got back to hydraulic reservoir.
Described controller is the PLC controller.
Described electromagnetic valve is three position four-way electromagnetic valve.
The fluid-link steering center support system that the utility model provides has been realized automatic centering, has reduced the wearing and tearing of wheel, has prolonged the service life of wheel, has solved existing heavy engineering Vehicular turn centering inefficiency, the problem of complicated operation.
Description of drawings
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is further described in detail.
Fig. 1 is the systematic schematic diagram of the utility model embodiment fluid-link steering center support system.
The specific embodiment
As shown in Figure 1, the fluid-link steering center support system on the diaxon engineering truck comprises three position four-way electromagnetic valve 1, left front oil cylinder 3, right front oil cylinder 4, left back oil cylinder 5 and right back oil cylinder 6.Left front oil cylinder 3, right front oil cylinder 4 are connected with front steering joint arm 9 respectively, left back oil cylinder 5 be connected oil cylinder 6 and save arm 10 with rear steering respectively and be connected.The fluid-link steering center support system also comprises PLC controller 11, front angular transducer 7 and rear angular transducer 8, and front angular transducer 7 is installed on the front steering joint arm 9, and rear angular transducer 8 is installed on the rear steering joint arm 10.Front angular transducer 7 and rear angular transducer 8 send to PLC controller 11 with voltage signal, PLC controller 11 is connected with Y22 with three position four-way electromagnetic valve about 1 two end-coil Y21, the P mouth of three position four-way electromagnetic valve 1 connects oil sources, the A mouth links to each other with an oil inlet of hydraulic lock 2, the B mouth links to each other with another oil inlet of hydraulic lock 2, an oil outlet of hydraulic lock 2 is connected to the loculus of left front oil cylinder 3 and right back oil cylinder 5, and another oil outlet is connected to the loculus of right front oil cylinder 4 and left back oil cylinder 6.The T mouth of three position four-way electromagnetic valve 1 is directly got back to hydraulic reservoir 12.
The centering process of this fluid-link steering center support system is:
The real-time angle that front angular transducer 7 records 9 rotations of front steering arm is θ 1, and the real-time angle that rear angular transducer 8 records 10 rotations of rear steering arm is θ 2; PLC controller 11 is converted to angle value with the magnitude of voltage of angular transducer collection.
When | θ 1|＞| θ 2|, θ 1＞0 o'clock (clockwise direction for just), the coil Y22 of PLC control this moment three position four-way electromagnetic valve 1 gets electric, pressure oil enters the P mouth of three position four-way electromagnetic valve 1, flow out from the A mouth, pressure oil flows out the loculus that arrives left front oil cylinder 3 and right back oil cylinder 6 from hydraulic lock 2, pressure oil promotes front steering arm 9 and rear steering arm 10 rotates counterclockwise, the oil in left front oil cylinder 3 large chambeies enters left back oil cylinder 5, the oil in right back oil cylinder 6 large chambeies enters the large chamber of right front oil cylinder 4, the pressure oil of left back oil cylinder 5 and right front oil cylinder 4 loculuses flows back to hydraulic reservoir 12 by the hydraulic lock 2 of opening from the B mouth of three position four-way electromagnetic valve 1, when | during θ 1|=| θ 2|, the coil Y22 outage of three position four-way electromagnetic valve 1, front steering arm 9 and rear steering arm 10 stop operating simultaneously, and at this moment, the front and back spindle arm equates with the absolute value of axle axis angle, opposite direction, centering is finished.
When | θ 1|＞| θ 2|, θ 1＜0 o'clock (clockwise direction for just), the coil Y21 of PLC control this moment three position four-way electromagnetic valve 1 gets electric, pressure oil enters the P mouth of three position four-way electromagnetic valve, flow out from the B mouth, pressure oil flows out the loculus that arrives right front oil cylinder 4 and left back oil cylinder 5 from hydraulic lock 2, the oil content in right front oil cylinder 4 and left back oil cylinder 5 large chambeies does not enter the large chamber of right back oil cylinder 6 and left front oil cylinder 3, the pressure oil of left front oil cylinder 3 and right back oil cylinder 6 loculuses flows back to hydraulic reservoir 12 by the hydraulic lock 2 of opening from the A mouth of three position four-way electromagnetic valve 1, when | during θ 1|=| θ 2|, the coil Y21 outage of three position four-way electromagnetic valve 1, front steering arm 9 and rear steering arm 10 stop operating simultaneously, at this moment, centering is finished.
When | θ 1|＜| θ 2|, θ 2〉0 o'clock (clockwise direction for just), this moment, the Y22 of three position four-way electromagnetic valve 1 got electric, pressure oil enters the P mouth of three position four-way electromagnetic valve, flow out from the A mouth, pressure oil flows out the loculus that arrives left front oil cylinder 3 and right back oil cylinder 6 from hydraulic lock, pressure oil promotes spindle arm 9 and spindle arm 10 rotates counterclockwise, the oil content in left front oil cylinder 3 and right back oil cylinder 6 large chambeies does not enter the large chamber of left back oil cylinder 5 and right front oil cylinder 4, the pressure oil of left back oil cylinder 5 and right front oil cylinder 4 loculuses flows back to hydraulic reservoir 12 by the hydraulic lock 2 of opening from the B mouth of three position four-way electromagnetic valve 1, when | during θ 1|=| θ 2|, the coil Y22 of three position four-way electromagnetic valve 1 outage, front steering arm 9 and rear steering arm 10 stop operating simultaneously, at this moment, the front and back spindle arm equates with the absolute value of axle axis angle, opposite direction, and centering is finished.
When | θ 1|＜| θ 2|, θ 2＜0 o'clock (clockwise direction for just), this moment, the Y21 of three position four-way electromagnetic valve 1 got electric, this moment, the Y21 of three position four-way electromagnetic valve 1 got electric, pressure oil enters the P mouth of three position four-way electromagnetic valve, flow out from the B mouth, pressure oil arrives the loculus of steering cylinder 4 and steering cylinder 5 from hydraulic lock 2, the oil content in right front oil cylinder 4 and left back oil cylinder 5 large chambeies does not enter the large chamber of right back oil cylinder 6 and left front oil cylinder 3, the pressure oil of left front oil cylinder 3 and right back oil cylinder 6 loculuses flows back to hydraulic reservoir 12 by the hydraulic lock 2 of opening from the A mouth of three position four-way electromagnetic valve 1, when | during θ 1|=| θ 2|, the coil Y21 outage of three position four-way electromagnetic valve 1, front steering arm 9 and rear steering arm 10 stop operating simultaneously, and at this moment, centering is finished.
The hydraulic centralizing system actv. of the present embodiment has been realized automatic centering, has reduced the wearing and tearing of wheel, has prolonged the service life of wheel.Solved existing heavy engineering Vehicular turn centering inefficiency, the problem of complicated operation.
It should be noted last that, the above specific embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. a fluid-link steering center support system comprises electromagnetic valve and left front oil cylinder, right front oil cylinder, left back oil cylinder and right back oil cylinder; Described left front oil cylinder, right front oil cylinder are connected with front steering joint arm respectively, described left back oil cylinder be connected oil cylinder and be connected with rear steering joint arm respectively, it is characterized in that, also comprise controller and forward and backward angular transducer, described front angle installation of sensors is on front steering joint arm, described rear angle installation of sensors is on rear steering joint arm, and forward and backward angular transducer sends to described controller with voltage signal, and described controller is connected with two end-coils about described electromagnetic valve.
2. fluid-link steering center support system according to claim 1, it is characterized in that, also comprise hydraulic lock, described electromagnetic valve A mouth links to each other with an oil inlet of described hydraulic lock, described electromagnetic valve B mouth links to each other with another oil inlet of described hydraulic lock, an oil outlet of described hydraulic lock is connected to the loculus of described left front oil cylinder and described right back oil cylinder, and another oil outlet is connected to the loculus of described right front oil cylinder and described left back oil cylinder, and the T mouth of described electromagnetic valve is directly got back to hydraulic reservoir.
3. fluid-link steering center support system according to claim 1 and 2 is characterized in that, described controller is the PLC controller.
4. fluid-link steering center support system according to claim 1 and 2 is characterized in that, described electromagnetic valve is three position four-way electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220278634 CN202827713U (en) | 2012-06-14 | 2012-06-14 | Hydraulic steering and alignment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220278634 CN202827713U (en) | 2012-06-14 | 2012-06-14 | Hydraulic steering and alignment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202827713U true CN202827713U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220278634 Expired - Lifetime CN202827713U (en) | 2012-06-14 | 2012-06-14 | Hydraulic steering and alignment system |
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| CN (1) | CN202827713U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109083661A (en) * | 2018-09-19 | 2018-12-25 | 中国铁建重工集团有限公司 | A kind of steering system and method for concrete spraying trolley |
| CN109318984A (en) * | 2018-09-07 | 2019-02-12 | 北京航天发射技术研究所 | It is a kind of with turning to steering control device to positive interlock function, method and system |
| CN113895514A (en) * | 2021-10-22 | 2022-01-07 | 国能神东煤炭集团有限责任公司 | Hydraulic steering wheel centering system and centering method |
-
2012
- 2012-06-14 CN CN 201220278634 patent/CN202827713U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109318984A (en) * | 2018-09-07 | 2019-02-12 | 北京航天发射技术研究所 | It is a kind of with turning to steering control device to positive interlock function, method and system |
| CN109083661A (en) * | 2018-09-19 | 2018-12-25 | 中国铁建重工集团有限公司 | A kind of steering system and method for concrete spraying trolley |
| CN113895514A (en) * | 2021-10-22 | 2022-01-07 | 国能神东煤炭集团有限责任公司 | Hydraulic steering wheel centering system and centering method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: AEROSPACE HEAVY ENGINEERING EQUIPMENT CO., LTD. Free format text: FORMER OWNER: CHINA SPACE SANJIANG GROUP CO., LTD. Effective date: 20140416 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430040 WUHAN, HUBEI PROVINCE TO: 432000 XIAOGAN, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140416 Address after: 432000 No. 1 Wan Shan Road, Xiaogan Development Zone, Hubei Patentee after: Aerospace Heavy Engineering Equipment Co., Ltd. Address before: 430040 Wuhan, East and West Lake District, Jinshan Road, No. 9, Hubei Patentee before: China Aerospace Sanjiang Group Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term |