CN205101300U - Four -wheel laser leveling machine hydraulic control system that walks - Google Patents
Four -wheel laser leveling machine hydraulic control system that walks Download PDFInfo
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- CN205101300U CN205101300U CN201520863834.5U CN201520863834U CN205101300U CN 205101300 U CN205101300 U CN 205101300U CN 201520863834 U CN201520863834 U CN 201520863834U CN 205101300 U CN205101300 U CN 205101300U
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Abstract
The utility model relates to an evener wheel actuation controls technical field, discloses a four -wheel laser leveling machine hydraulic control system that walks, including the two -way variable displacement pump, the engine of drive two -way variable displacement pump, a mouth on the two -way variable displacement pump, it has front wheel hydraulic motor I to connect in parallel between the B mouth, front wheel hydraulic motor II, rear wheel hydraulic motor I, rear wheel hydraulic motor II, be connected with the reversing handle on the two -way variable displacement pump, front wheel hydraulic motor I's both ends are equipped with balanced valve I respectively, two balanced valve I interconnect, front wheel hydraulic motor II's both ends are equipped with balanced valve II respectively, two balanced valve II interconnect, rear wheel hydraulic motor I, both ends and A mouth after rear wheel hydraulic motor II is parallelly connected, be equipped with one -way throttle valve between the B mouth respectively. The utility model has the advantages of simple structure, convenient operation, strong adaptability, the beneficial effect that stability is good, the front wheel rear wheel does not have the differential.
Description
Technical field
The utility model relates to flattening machine wheel Drive Control Technique field, particularly relates to a kind of four-wheel laser leveling machine walking hydraulic control system.
Background technique
The wheel of current four-wheel laser leveling machine is all driven by mechanical structure usually, because the working site execution conditions of laser leveling machine are severe, and dust is in the majority, in the motor of traditional mechanical drive system, various lubrication joint easily enters dust and causes vehicle wheel rotation resistance to increase, between mechanical transmissioning piece, surface friction drag increases, easy wearing and tearing, complicated integral structure, poor stability.
Model utility content
The utility model easily affects in order to the drive mechanism for wheel solving four-wheel laser leveling machine of the prior art the deficiency causing poor stability by extraneous construction environment, provide that a kind of structure is simple, easy to operate, the four-wheel laser leveling machine of strong adaptability, good stability, front-wheel trailing wheel indifferential walking hydraulic control system.
To achieve these goals, the utility model adopts following technological scheme:
A kind of four-wheel laser leveling machine walking hydraulic control system, comprise two-way variable displacement pump, drive the motor of two-way variable displacement pump, A mouth on two-way variable displacement pump, front-wheel oil hydraulic motor I is parallel with between B mouth, front-wheel oil hydraulic motor II, trailing wheel oil hydraulic motor I, trailing wheel oil hydraulic motor II, described two-way variable displacement pump is connected with reversing handle, the two ends of described front-wheel oil hydraulic motor I are respectively equipped with equilibrium valve I, two equilibrium valve I are interconnected, the two ends of described front-wheel oil hydraulic motor II are respectively equipped with equilibrium valve II, two equilibrium valve II are interconnected, described trailing wheel oil hydraulic motor I, two ends after trailing wheel oil hydraulic motor II parallel connection and A mouth, one-way throttle valve is respectively equipped with between B mouth.
Whole oil-way system is a closed entirety, changes fluid in two-way variable displacement pump flow to by reversing handle, thus synchronization control front-wheel oil hydraulic motor I, front-wheel oil hydraulic motor II, trailing wheel oil hydraulic motor I, the rotating forward of trailing wheel oil hydraulic motor II, reversion; Two front-wheels of laser leveling machine, two trailing wheels are respectively by independently fluid motor-driven, when rough road surface travels, even if part wheel not with earth surface, also the normal movement of flattening machine, walking can be kept, equilibrium valve I, equilibrium valve II, one-way throttle valve can adjust return oil pressure and the rotating speed of oil hydraulic motor, thus ensure four-wheel laser leveling machine smooth running, starting stops steadily, front and back wheels indifferential and without skidding.
As preferably, also comprise fuel tank, gear pump, described gear pump is by described engine-driving, and the oil inlet end of described gear pump is connected with fuel tank, the oil outlet end of gear pump is connected with A mouth, B mouth respectively, and the connecting end of gear pump and A mouth, B mouth is respectively equipped with Fill valve.Need repairing when fluid lacks in the system closed, now carry out repairing by gear pump, Fill valve to the system closed, in keeping system, oil mass is stablized.
As preferably, be also provided with hydraulic operated valve between A mouth and B mouth, the return opening on hydraulic operated valve is connected with fuel tank, and the return opening place on hydraulic operated valve is provided with pressure regulator valve.The pressure of two-way variable displacement pump actuator port (A mouth, B mouth) is regulated together by hydraulic operated valve, pressure regulator valve.
As preferably, the oil outlet end of described gear pump is connected with fuel tank, and the oil outlet end of gear pump and the connecting pipeline of fuel tank are provided with overload valve.Oil compensation pressure is regulated by overload valve.
As preferably, described two-way variable displacement pump is axial piston two-way variable displacement pump.
As preferably, the oil inlet end of described gear pump is provided with oil filter.Oil filter can prevent the impurity in fuel tank inner fluid from entering in oil-way system.
Therefore, the utility model has that structure is simple, easy to operate, the beneficial effect of strong adaptability, good stability, front-wheel trailing wheel indifferential.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
In figure: two-way variable displacement pump 1, motor 2, fuel tank 3, gear pump 4, front-wheel oil hydraulic motor I5, front-wheel oil hydraulic motor II6, trailing wheel oil hydraulic motor I7, trailing wheel oil hydraulic motor II8, reversing handle 9, equilibrium valve I10, equilibrium valve II11, one-way throttle valve 12, hydraulic operated valve 13, pressure regulator valve 14, Fill valve 15, overload valve 16, oil filter 17.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
A kind of four-wheel laser leveling machine walking hydraulic control system as shown in Figure 1, comprise two-way variable displacement pump 1, motor 2, fuel tank 3, gear pump 4, two-way variable displacement pump, gear pump is all pass through engine-driving, two-way variable displacement pump in the present embodiment is axial piston two-way variable displacement pump, A mouth on two-way variable displacement pump 1, front-wheel oil hydraulic motor I5 is parallel with between B mouth, front-wheel oil hydraulic motor II6, trailing wheel oil hydraulic motor I7, trailing wheel oil hydraulic motor II8, two-way variable displacement pump 1 is connected with reversing handle 9, the two ends of front-wheel oil hydraulic motor I5 are respectively equipped with equilibrium valve I10, two equilibrium valve I are interconnected, the two ends of front-wheel oil hydraulic motor II6 are respectively equipped with equilibrium valve II11, two equilibrium valve II are interconnected, trailing wheel oil hydraulic motor I7, two ends after trailing wheel oil hydraulic motor II8 parallel connection and A mouth, one-way throttle valve 12 is respectively equipped with between B mouth, also be provided with hydraulic operated valve 13 between A mouth and B mouth, the return opening on hydraulic operated valve 13 is connected with fuel tank 3, and the return opening place on hydraulic operated valve is provided with pressure regulator valve 14.
The oil inlet end of gear pump 4 is connected with fuel tank 3, and the oil inlet end of gear pump is provided with oil filter 17, and the oil outlet end of gear pump 4 is connected with A mouth, B mouth respectively, and gear pump 4 is respectively equipped with Fill valve 15 with the connecting end of A mouth, B mouth; The oil outlet end of gear pump 4 also has pipeline to be connected with fuel tank, and the oil outlet end of gear pump 4 and the connecting pipeline of fuel tank are provided with overload valve 16.
Whole main control oil-way system is a closed entirety, change fluid in two-way variable displacement pump by reversing handle to flow to, thus synchronization control front-wheel oil hydraulic motor I, front-wheel oil hydraulic motor II, trailing wheel oil hydraulic motor I, the rotating forward of trailing wheel oil hydraulic motor II, reversion; Two front-wheels of laser leveling machine, two trailing wheels are respectively by independently fluid motor-driven, when rough road surface travels, even if part wheel not with earth surface, also the normal movement of flattening machine, walking can be kept, equilibrium valve I, equilibrium valve II, one-way throttle valve can adjust return oil pressure and the rotating speed of oil hydraulic motor, the pressure that two-way variable displacement pump puts into actuator port (A mouth, B mouth) is regulated by hydraulic operated valve, thus ensure four-wheel laser leveling machine smooth running, starting stops steadily, front and back wheels indifferential and without skidding; Need repairing when oil mass reduces in the main control oil-way system closed, now just carry out repairing by gear pump, Fill valve, oil compensation pressure is controlled by overload valve.Therefore, the utility model has that structure is simple, easy to operate, the beneficial effect of strong adaptability, good stability, front-wheel trailing wheel indifferential.
Claims (6)
1. a four-wheel laser leveling machine walking hydraulic control system, it is characterized in that, comprise two-way variable displacement pump, drive the motor of two-way variable displacement pump, A mouth on two-way variable displacement pump, front-wheel oil hydraulic motor I is parallel with between B mouth, front-wheel oil hydraulic motor II, trailing wheel oil hydraulic motor I, trailing wheel oil hydraulic motor II, described two-way variable displacement pump is connected with reversing handle, the two ends of described front-wheel oil hydraulic motor I are respectively equipped with equilibrium valve I, two equilibrium valve I are interconnected, the two ends of described front-wheel oil hydraulic motor II are respectively equipped with equilibrium valve II, two equilibrium valve II are interconnected, described trailing wheel oil hydraulic motor I, two ends after trailing wheel oil hydraulic motor II parallel connection and A mouth, one-way throttle valve is respectively equipped with between B mouth.
2. four-wheel laser leveling machine walking hydraulic control system according to claim 1, it is characterized in that, also comprise fuel tank, gear pump, described gear pump is by described engine-driving, the oil inlet end of described gear pump is connected with fuel tank, the oil outlet end of gear pump is connected with A mouth, B mouth respectively, and the connecting end of gear pump and A mouth, B mouth is respectively equipped with Fill valve.
3. four-wheel laser leveling machine walking hydraulic control system according to claim 2, it is characterized in that, be also provided with hydraulic operated valve between A mouth and B mouth, the return opening on hydraulic operated valve is connected with fuel tank, and the return opening place on hydraulic operated valve is provided with pressure regulator valve.
4. the four-wheel laser leveling machine walking hydraulic control system according to Claims 2 or 3, it is characterized in that, the oil outlet end of described gear pump is connected with fuel tank, and the oil outlet end of gear pump and the connecting pipeline of fuel tank are provided with overload valve.
5. the four-wheel laser leveling machine walking hydraulic control system according to claim 1 or 2 or 3, it is characterized in that, described two-way variable displacement pump is axial piston two-way variable displacement pump.
6. four-wheel laser leveling machine walking hydraulic control system according to claim 2, it is characterized in that, the oil inlet end of described gear pump is provided with oil filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520863834.5U CN205101300U (en) | 2015-10-31 | 2015-10-31 | Four -wheel laser leveling machine hydraulic control system that walks |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520863834.5U CN205101300U (en) | 2015-10-31 | 2015-10-31 | Four -wheel laser leveling machine hydraulic control system that walks |
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| CN205101300U true CN205101300U (en) | 2016-03-23 |
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| CN201520863834.5U Active CN205101300U (en) | 2015-10-31 | 2015-10-31 | Four -wheel laser leveling machine hydraulic control system that walks |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744999A (en) * | 2019-10-28 | 2020-02-04 | 韩国昊 | Hydraulic differential control system for vehicle |
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2015
- 2015-10-31 CN CN201520863834.5U patent/CN205101300U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110744999A (en) * | 2019-10-28 | 2020-02-04 | 韩国昊 | Hydraulic differential control system for vehicle |
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