CN203832247U - Walking wheel hydraulic drive system and wheel-type walking device driven by hydraulic drive system - Google Patents
Walking wheel hydraulic drive system and wheel-type walking device driven by hydraulic drive system Download PDFInfo
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- CN203832247U CN203832247U CN201420233642.1U CN201420233642U CN203832247U CN 203832247 U CN203832247 U CN 203832247U CN 201420233642 U CN201420233642 U CN 201420233642U CN 203832247 U CN203832247 U CN 203832247U
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- oil
- sequence valve
- oil circuit
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- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 11
- 230000033001 locomotion Effects 0.000 claims abstract description 6
- 239000003921 oil Substances 0.000 claims description 206
- 238000006073 displacement reaction Methods 0.000 claims description 75
- 239000012530 fluid Substances 0.000 claims description 43
- 230000001276 controlling effect Effects 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 239000010720 hydraulic oil Substances 0.000 claims description 6
- 238000003967 crop rotation Methods 0.000 claims description 5
- 230000007306 turnover Effects 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 4
- 239000010705 motor oil Substances 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model provides a walking wheel hydraulic drive system and a wheel-type walking device driven by the hydraulic drive system. The hydraulic drive system comprises a steering drive unit and a rotating drive unit, the rotating drive unit comprises a variable motor used for driving a walking wheel to rotate and a high-pressure oil circuit used for supplying oil to an oil inlet of the variable motor, the high-pressure oil circuit is provided with a sequence valve used for carrying out switching-on and switching-off motions according to oil pressure at the oil inlet of the variable motor, an oil control portion of the sequence valve is communicated with the oil inlet of the variable motor, the high-pressure oil circuit is communicated with a throttling oil circuit with a throttling valve, the throttling oil circuit is in parallel connection with the sequence valve, and two communication portions where the throttling oil circuit and the high-pressure oil circuit are in butt joint are located at the upstream and the downstream of the sequence valve respectively. When the wheel-type walking device needs to turn on site, a part of high-pressure oil flows to the variable motor through the throttling oil circuit, so that the variable motor drives the walking wheel to have a rotation tendency but cannot drive the walking wheel to rotate, and accordingly steering force needed by on-site rotation can be effectively reduced.
Description
Technical field
The utility model relates to a kind of road wheel fluid power system and uses the running gear system of fluid power system.
Background technology
Large-scale, heavy walking machine adopts running gear system and cterpillar drive conventionally, and wherein, running gear system is because it is simple in structure, low cost of manufacture is used widely.Running gear system comprises that road wheel and ground-engaging wheel rotate, the fluid power system turning to, fluid power system comprises the rotary drive unit that turns to driver element and rotate for ground-engaging wheel turning to for ground-engaging wheel, turn to driver element to comprise by the steering cylinder of hydraulic circuit drive actions, steering cylinder ground-engaging wheel turns to, rotary drive unit comprise the variable-dis-placement motor that is connected with traction drive and with the entering of variable-dis-placement motor, the height that oil outlet is communicated with, low pressure oil way, high pressure liquid force feed is rotated with driving variable-dis-placement motor in high-pressure oil passage entering variable motor, the low-pressure hydraulic oil of discharging from the oil outlet of variable-dis-placement motor is discharged through low pressure oil way.
The running gear of walking machine normally turns in moving process, while turning to, by turning to the steering cylinder ground-engaging wheel in driver element to turn to, while turning in moving process, the friction force that road wheel bears is relatively little, and required steering effort is also relatively little.While needing pivot stud when running into special operation condition, the friction force that during due to pivot stud, road wheel bears is larger, and steering effort is large (the required steering effort of pivot stud is generally to walk and turns to three times of required steering effort) also, and pivot stud is difficulty comparatively.
For ease of pivot stud, be mostly to configure at present jacking apparatus as adopted jacking supporting leg on running gear system, while needing pivot stud, first use jacking apparatus that walking machine is lifted, then complete and turn to.But the measure of this configuration jacking apparatus makes the cost of whole running gear system higher, hydraulic efficiency pressure system is also comparatively complicated, is not easy to maintenance, also comparatively dangerous in use.
Summary of the invention
The utility model provides a kind of simple, safe road wheel fluid power system, needs to configure jacking apparatus and causes to complete pivot stud the technical matters that running gear system cost is higher to solve in prior art; Meanwhile, the utility model also provides a kind of running gear system that uses above line travelling wheel fluid power system.
The technical scheme of a kind of road wheel fluid power system provided by the utility model is: road wheel fluid power system, comprise and turn to driver element and rotary drive unit, rotary drive unit comprises the high-pressure oil passage for the variable-dis-placement motor of ground-engaging wheel rotation and the corresponding oil inlet fuel feeding to variable-dis-placement motor, described high-pressure oil passage is provided with the sequence valve for carrying out switch motion according to the oil pressure size at variable-dis-placement motor oil inlet place, the control port of sequence valve is communicated with the oil inlet of described variable-dis-placement motor, on high-pressure oil passage, be communicated with the throttling oil circuit which is provided with flow regulating valve, throttling oil circuit and described sequence valve install in parallel, the corresponding upstream and downstream that is positioned at sequence valve of two connectivity parts that throttling oil circuit is docked and connected with high-pressure oil passage.
Described variable-dis-placement motor also has the oil outlet with described oil inlet positioned opposite, corresponding being communicated with and the low pressure oil way of high-pressure oil passage positioned opposite on oil outlet, the variable-dis-placement motor of described rotary drive unit is to drive corresponding line to walk the double-action variable displacement motor of crop rotation Double-directional rotary, double-action variable displacement motor has alternately two hydraulic fluid ports as described oil inlet and oil outlet, described rotary drive unit comprise respectively with double-action variable displacement motor two hydraulic fluid ports be docked and connected alternately as two oil circuits of described high-pressure oil passage and low pressure oil way, on two oil circuits, be equipped with described sequence valve and throttling oil circuit described and sequence valve install in parallel, on two oil circuits, be also communicated with respectively for the low pressure conducting oil circuit in the conducting during as low pressure oil way of corresponding oil circuit, low pressure conducting oil circuit is provided with the control cock for controlling low pressure conducting oil circuit break-make, low pressure conducting oil circuit and described throttling oil circuit, sequence valve install in parallel, the corresponding upstream and downstream that is positioned at sequence valve of two connectivity parts that low pressure conducting oil circuit is docked and connected with high-pressure oil passage.
Control cock on described low pressure conducting oil circuit is check valve.
Described sequence valve is the internal control formula sequence valve that leaks.
Described turn to driver element comprise the steering cylinder of tool rod chamber and rodless cavity and respectively with the rod chamber of steering cylinder and the hydraulic circuit of the corresponding connection of rodless cavity, hydraulic circuit is provided with the rod chamber for controlling hydraulic oil turnover steering cylinder, the electric proportional reversing valve of rodless cavity, is also provided with the balance cock for steering cylinder being locked to control road wheel steering angle on hydraulic circuit.
The utility model also provides a kind of technical scheme of the running gear system that uses above line travelling wheel fluid power system to be: running gear system, comprise that road wheel and corresponding ground-engaging wheel turn to, the road wheel fluid power system of rotation, road wheel fluid power system comprises and turns to driver element and rotary drive unit, rotary drive unit comprises the high-pressure oil passage for the variable-dis-placement motor of ground-engaging wheel rotation and the corresponding oil inlet fuel feeding to variable-dis-placement motor, it is characterized in that: described high-pressure oil passage is provided with the sequence valve for carrying out switch motion according to the oil pressure size at variable-dis-placement motor oil inlet place, the control port of sequence valve is communicated with the oil inlet of described variable-dis-placement motor, on high-pressure oil passage, be communicated with the throttling oil circuit which is provided with flow regulating valve, throttling oil circuit and described sequence valve install in parallel, the corresponding upstream and downstream that is positioned at sequence valve of two connectivity parts that throttling oil circuit is docked and connected with high-pressure oil passage.
Described variable-dis-placement motor also has the oil outlet with described oil inlet positioned opposite, corresponding being communicated with and the low pressure oil way of high-pressure oil passage positioned opposite on oil outlet, the variable-dis-placement motor of described rotary drive unit is to drive corresponding line to walk the double-action variable displacement motor of crop rotation Double-directional rotary, double-action variable displacement motor has alternately two hydraulic fluid ports as described oil inlet and oil outlet, described rotary drive unit comprise respectively with double-action variable displacement motor two hydraulic fluid ports be docked and connected alternately as two oil circuits of described high-pressure oil passage and low pressure oil way, on two oil circuits, be equipped with described sequence valve and throttling oil circuit described and sequence valve install in parallel, on two oil circuits, be also communicated with respectively for the low pressure conducting oil circuit in the conducting during as low pressure oil way of corresponding oil circuit, low pressure conducting oil circuit is provided with the control cock for controlling low pressure conducting oil circuit break-make, low pressure conducting oil circuit and described throttling oil circuit, sequence valve install in parallel, the corresponding upstream and downstream that is positioned at sequence valve of two connectivity parts that low pressure conducting oil circuit is docked and connected with high-pressure oil passage.
Control cock on described low pressure conducting oil circuit is check valve.
Described sequence valve is the internal control formula sequence valve that leaks.
Described turn to driver element comprise the steering cylinder of tool rod chamber and rodless cavity and respectively with the rod chamber of steering cylinder and the hydraulic circuit of the corresponding connection of rodless cavity, hydraulic circuit is provided with the rod chamber for controlling hydraulic oil turnover steering cylinder, the electric proportional reversing valve of rodless cavity, is also provided with the balance cock for steering cylinder being locked to control road wheel steering angle on hydraulic circuit.
The beneficial effects of the utility model are: the hydraulic efficiency pressure system in running gear system provided by the utility model comprises and turns to driver element and rotary drive unit, need to turn to time, can, by turning to drive unit drives road wheel to turn to, in the time that walking, needs be walked by rotary drive unit ground-engaging wheel.On the high-pressure oil passage of the rotary drive unit in road wheel fluid power system provided by the utility model, be communicated with throttling oil circuit, in the time that needs carry out pivot stud, make high pressure oil enter the high-pressure oil passage of rotary drive unit, because the control port of sequence valve and the oil inlet of variable-dis-placement motor are communicated with, in the time that road wheel does not rotate, the inlet pressure of variable-dis-placement motor is lower, sequence valve can not be opened, therefore the high pressure oil entering through high-pressure oil passage will flow to variable-dis-placement motor through throttling oil circuit, in throttling oil circuit under the throttling action of flow regulating valve, only there is part high-pressure oil flow to variable-dis-placement motor, this part high pressure oil can make variable-dis-placement motor ground-engaging wheel have rotation trend, but cannot rotate by ground-engaging wheel, in this simultaneously, turn to drive unit drives road wheel to turn to, because road wheel has rotation trend, be equivalent to turn to power-assisted is provided to road wheel, and then can effectively reduce the needed steering effort of pivot stud, operation is simple and reliable, safety factor is also higher.
Further, variable-dis-placement motor in rotary drive unit is double-action variable displacement motor, can meet like this road wheel Double-directional rotary to control moving forward and backward of walking machine, accordingly, two oil circuits in rotary drive unit also need alternately as high-pressure oil passage and low pressure oil way to meet the normal work of double-action variable displacement motor.
Further, on low pressure conducting oil circuit, adopt check valve as control cock, simple in structure, control reliable.
Further, turn on the hydraulic circuit in driver element, to be not only provided with electric proportional reversing valve and to turn to control road wheel, be also provided with balance cock road wheel is locked in to any steering position, thereby can control the rotational angle of road wheel.
Brief description of the drawings
Fig. 1 is the hydraulic schematic diagram of the rotary drive unit in a kind of embodiment of running gear system provided by the utility model;
Fig. 2 is the hydraulic schematic diagram that turns to driver element that for ground-engaging wheel turns to corresponding with rotary drive unit shown in Fig. 1.
Detailed description of the invention
As shown in Figure 1 and Figure 2, a kind of embodiment of running gear system, running gear system in this embodiment comprises the road wheel fluid power system that road wheel 1 and corresponding ground-engaging wheel 1 turn to, rotate, and road wheel fluid power system comprises and turns to driver element and rotary drive unit.
Turn to driver element comprise the steering cylinder 11 of tool rod chamber and rodless cavity and respectively with the rod chamber of steering cylinder 11 and the hydraulic circuit of the corresponding connection of rodless cavity, hydraulic circuit comprises oil-feed oil circuit P and oil return circuit T.Hydraulic circuit is provided with the rod chamber for controlling hydraulic oil turnover steering cylinder 11, the electric proportional reversing valve 13 of rodless cavity, is also provided with for the balance cock 12 with control road wheel steering angle by the plunger lock of steering cylinder 11 on hydraulic circuit.
Rotary drive unit comprises the variable-dis-placement motor and the corresponding high-pressure oil passage P into and out of hydraulic fluid port and hydraulic efficiency power unit (not shown), the low pressure oil way S that is communicated with variable-dis-placement motor that have into and out of hydraulic fluid port.Variable-dis-placement motor in the present embodiment is the double-action variable displacement motor 3 that can drive corresponding walking crop rotation Double-directional rotary, and double-action variable displacement motor 3 has alternately two hydraulic fluid ports as described oil inlet and oil outlet.Each driver element include respectively with two hydraulic fluid ports of bidirectional variable HM Hydraulic Motor 3 be docked and connected alternately as two oil circuits of high-pressure oil passage P and low pressure oil way S, the structure of two oil circuits is basic identical.On each driver element, be equipped with the sequence valve 5 for carrying out switch motion according to the oil pressure size at the oil inlet place of double-action variable displacement motor at corresponding oil circuit during as high-pressure oil passage, the control port 51 of sequence valve 5 is communicated with the oil inlet of the double-action variable displacement motor 3 of corresponding rotary drive unit, sequence valve 5 is the internal control formula sequence valve that leaks, and the drain tap on two sequence valves 5 on each driver element is communicated with corresponding oil return circuit T respectively.
On two oil circuits of rotary drive unit, be also communicated with respectively throttling oil circuit 300, throttling oil circuit 300 is provided with flow regulating valve 4, sequence valve 5 install in parallels that throttling oil circuit 300 is provided with corresponding oil circuit, the corresponding upstream and downstream that is positioned at sequence valve 5 of two connectivity parts that throttling oil circuit 300 is docked and connected with corresponding oil circuit.
On two oil circuits of rotary drive unit, be also communicated with respectively for the low pressure conducting oil circuit 200 in the conducting during as low pressure oil way of corresponding oil circuit, low pressure conducting oil circuit 200 is provided with the control cock for controlling low pressure conducting oil circuit 200 break-makes, control cock is check valve 6, described throttling oil circuit 300 on low pressure conducting oil circuit and each oil circuit, sequence valve 5 install in parallels, the corresponding upstream and downstream that is positioned at sequence valve 5 of two connectivity parts that low pressure conducting oil circuit 200 is docked and connected with corresponding oil circuit.
The running gear that the present embodiment provides is in the time of normal walking, double-action variable displacement motor 3 is in transmission connection by retarder 2 and corresponding road wheel 1, hydraulic efficiency power unit provides high pressure liquid force feed to rotary drive unit, a little high pressure liquid force feed flows to the oil inlet of corresponding double-action variable displacement motor 3 through throttling oil circuit 300, if the road wheel 1 that rotary drive unit drives is all non-slip, the load of the double-action variable displacement motor 3 of rotary drive unit is larger, oil inlet place at double-action variable displacement motor 3 forms high pressure, sequence valve 5 is opened, high pressure oil through the corresponding oil circuit Rapid Flow as high-pressure oil passage to double-action variable displacement motor 3, and flow out through low pressure oil way S, and then driving double-action variable displacement motor 3 fast rotational, double-action variable displacement motor 3 rotates by retarder 2 ground-engaging wheels 1, thereby drive whole walking machine normally to walk.
If need to turn in moving process, by turning to the corresponding corresponding line travelling wheel that drives of steering cylinder 11 in driver element to turn to.
If and need to turn in original place time, because the required steering effort of pivot stud is larger, be to turn to power-assisted is provided for reducing required steering effort, make high pressure oil enter the high-pressure oil passage of rotary drive unit, because the control port of sequence valve 5 is communicated with the oil inlet of double-action variable displacement motor 3, in the time that road wheel 1 does not rotate, the inlet pressure of double-action variable displacement motor 3 is lower, sequence valve 5 can not be opened, therefore the high pressure oil entering through high-pressure oil passage will flow to double-action variable displacement motor 3 through throttling oil circuit 100, under the throttling action of the flow regulating valve 4 in throttling oil circuit 100, only there is part high-pressure oil flow two-way to variable-dis-placement motor 3, this part high pressure oil can make double-action variable displacement motor 3 ground-engaging wheels 1 have rotation trend, but cannot rotate by ground-engaging wheel 1, in this simultaneously, turn to drive unit drives road wheel 1 to turn to, because road wheel 1 has rotation trend, be equivalent to turn to power-assisted is provided to road wheel, and then can effectively reduce the needed steering effort of pivot stud, operation is simple and reliable, safety factor is also higher.
In the present embodiment, the high pressure liquid force feed flow regulating valve of flowing through, poor into and out of mineralization pressure between oilhole at flow regulating valve, ensures whole system pressure stability.
The high pressure forming in the hydraulic fluid port place of two-way hydraulic motor in the present embodiment and low pressure are can drive sequence valve to be opened for standard, when the pressure of the hydraulic fluid port of double-action variable displacement motor increases to can be in the time that the control port of sequence valve drives sequence valve to open, think that the pressure of hydraulic fluid port of double-action variable displacement motor is high pressure, and when the hydraulic fluid port pressure decreased of double-action variable displacement motor is to can not be in the time that the control port of sequence valve drives sequence valve to open, think that the pressure of hydraulic fluid port of double-action variable displacement motor is low pressure.
In above-described embodiment turn to driver element also can adopt running gear of the prior art conventional turn to driver element.
In above-described embodiment, variable-dis-placement motor is double-action variable displacement motor, and in other embodiments, variable-dis-placement motor can be also unidirectional variable-dis-placement motor, and now, high-pressure oil passage and low pressure oil way do not need to exchange, and only sequence valve, throttling oil circuit need to be set on high-pressure oil passage.
The walking running gear that above-described embodiment provides can be applied in construction machinery and equipment, handling machinery, agriculture and forestry machinery, special vehicle etc. taking hydraulic-driven in main running gear.
The utility model also provides a kind of embodiment of road wheel fluid power system, and the structure of the road wheel fluid power system in this embodiment is identical with the structure of the fluid power system in above-mentioned running gear system, does not repeat them here.
Claims (10)
1. road wheel fluid power system, comprise and turn to driver element and rotary drive unit, rotary drive unit comprises the high-pressure oil passage for the variable-dis-placement motor of ground-engaging wheel rotation and the corresponding oil inlet fuel feeding to variable-dis-placement motor, it is characterized in that: described high-pressure oil passage is provided with the sequence valve for carrying out switch motion according to the oil pressure size at variable-dis-placement motor oil inlet place, the control port of sequence valve is communicated with the oil inlet of described variable-dis-placement motor, on high-pressure oil passage, be communicated with the throttling oil circuit which is provided with flow regulating valve, throttling oil circuit and described sequence valve install in parallel, the corresponding upstream and downstream that is positioned at sequence valve of two connectivity parts that throttling oil circuit is docked and connected with high-pressure oil passage.
2. road wheel fluid power system according to claim 1, it is characterized in that: described variable-dis-placement motor also has the oil outlet with described oil inlet positioned opposite, corresponding being communicated with and the low pressure oil way of high-pressure oil passage positioned opposite on oil outlet, the variable-dis-placement motor of described rotary drive unit is to drive corresponding line to walk the double-action variable displacement motor of crop rotation Double-directional rotary, double-action variable displacement motor has alternately two hydraulic fluid ports as described oil inlet and oil outlet, described rotary drive unit comprise respectively with double-action variable displacement motor two hydraulic fluid ports be docked and connected alternately as two oil circuits of described high-pressure oil passage and low pressure oil way, on two oil circuits, be equipped with described sequence valve and throttling oil circuit described and sequence valve install in parallel, on two oil circuits, be also communicated with respectively for the low pressure conducting oil circuit in the conducting during as low pressure oil way of corresponding oil circuit, low pressure conducting oil circuit is provided with the control cock for controlling low pressure conducting oil circuit break-make, low pressure conducting oil circuit and described throttling oil circuit, sequence valve install in parallel, the corresponding upstream and downstream that is positioned at sequence valve of two connectivity parts that low pressure conducting oil circuit is docked and connected with high-pressure oil passage.
3. road wheel fluid power system according to claim 2, is characterized in that: the control cock on described low pressure conducting oil circuit is check valve.
4. road wheel fluid power system according to claim 1, is characterized in that: described sequence valve is the internal control formula sequence valve that leaks.
5. according to the road wheel fluid power system described in any one in claim 1 to 4, it is characterized in that: described turn to driver element comprise the steering cylinder of tool rod chamber and rodless cavity and respectively with the rod chamber of steering cylinder and the hydraulic circuit of the corresponding connection of rodless cavity, hydraulic circuit is provided with the rod chamber for controlling hydraulic oil turnover steering cylinder, the electric proportional reversing valve of rodless cavity, is also provided with the balance cock for steering cylinder being locked to control road wheel steering angle on hydraulic circuit.
6. running gear system, comprise that road wheel and corresponding ground-engaging wheel turn to, the road wheel fluid power system of rotation, road wheel fluid power system comprises and turns to driver element and rotary drive unit, rotary drive unit comprises the high-pressure oil passage for the variable-dis-placement motor of ground-engaging wheel rotation and the corresponding oil inlet fuel feeding to variable-dis-placement motor, it is characterized in that: described high-pressure oil passage is provided with the sequence valve for carrying out switch motion according to the oil pressure size at variable-dis-placement motor oil inlet place, the control port of sequence valve is communicated with the oil inlet of described variable-dis-placement motor, on high-pressure oil passage, be communicated with the throttling oil circuit which is provided with flow regulating valve, throttling oil circuit and described sequence valve install in parallel, the corresponding upstream and downstream that is positioned at sequence valve of two connectivity parts that throttling oil circuit is docked and connected with high-pressure oil passage.
7. running gear system according to claim 6, it is characterized in that: described variable-dis-placement motor also has the oil outlet with described oil inlet positioned opposite, corresponding being communicated with and the low pressure oil way of high-pressure oil passage positioned opposite on oil outlet, the variable-dis-placement motor of described rotary drive unit is to drive corresponding line to walk the double-action variable displacement motor of crop rotation Double-directional rotary, double-action variable displacement motor has alternately two hydraulic fluid ports as described oil inlet and oil outlet, described rotary drive unit comprise respectively with double-action variable displacement motor two hydraulic fluid ports be docked and connected alternately as two oil circuits of described high-pressure oil passage and low pressure oil way, on two oil circuits, be equipped with described sequence valve and throttling oil circuit described and sequence valve install in parallel, on two oil circuits, be also communicated with respectively for the low pressure conducting oil circuit in the conducting during as low pressure oil way of corresponding oil circuit, low pressure conducting oil circuit is provided with the control cock for controlling low pressure conducting oil circuit break-make, low pressure conducting oil circuit and described throttling oil circuit, sequence valve install in parallel, the corresponding upstream and downstream that is positioned at sequence valve of two connectivity parts that low pressure conducting oil circuit is docked and connected with high-pressure oil passage.
8. running gear system according to claim 7, is characterized in that: the control cock on described low pressure conducting oil circuit is check valve.
9. running gear system according to claim 6, is characterized in that: described sequence valve is the internal control formula sequence valve that leaks.
10. according to the running gear system described in any one in claim 6 to 9, it is characterized in that: described turn to driver element comprise the steering cylinder of tool rod chamber and rodless cavity and respectively with the rod chamber of steering cylinder and the hydraulic circuit of the corresponding connection of rodless cavity, hydraulic circuit is provided with the rod chamber for controlling hydraulic oil turnover steering cylinder, the electric proportional reversing valve of rodless cavity, is also provided with the balance cock for steering cylinder being locked to control road wheel steering angle on hydraulic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420233642.1U CN203832247U (en) | 2014-05-08 | 2014-05-08 | Walking wheel hydraulic drive system and wheel-type walking device driven by hydraulic drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420233642.1U CN203832247U (en) | 2014-05-08 | 2014-05-08 | Walking wheel hydraulic drive system and wheel-type walking device driven by hydraulic drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203832247U true CN203832247U (en) | 2014-09-17 |
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ID=51510126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420233642.1U Expired - Lifetime CN203832247U (en) | 2014-05-08 | 2014-05-08 | Walking wheel hydraulic drive system and wheel-type walking device driven by hydraulic drive system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203832247U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539794A (en) * | 2019-09-24 | 2019-12-06 | 湖北航天技术研究院特种车辆技术中心 | vehicle steering control method and system |
-
2014
- 2014-05-08 CN CN201420233642.1U patent/CN203832247U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539794A (en) * | 2019-09-24 | 2019-12-06 | 湖北航天技术研究院特种车辆技术中心 | vehicle steering control method and system |
| CN110539794B (en) * | 2019-09-24 | 2021-07-20 | 湖北航天技术研究院特种车辆技术中心 | Vehicle steering control method and system |
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| GR01 | Patent grant | ||
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Granted publication date: 20140917 |