CN204127043U - Horizontal directional drilling machine double-motive power closed hydraulic system flushing flow rate control gear - Google Patents
Horizontal directional drilling machine double-motive power closed hydraulic system flushing flow rate control gear Download PDFInfo
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- CN204127043U CN204127043U CN201420402341.7U CN201420402341U CN204127043U CN 204127043 U CN204127043 U CN 204127043U CN 201420402341 U CN201420402341 U CN 201420402341U CN 204127043 U CN204127043 U CN 204127043U
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Abstract
A kind of horizontal directional drilling machine double-motive power closed hydraulic system flushing flow rate control gear, first enclosed pump (2), second enclosed pump (6), first oil hydraulic motor (3), second oil hydraulic motor (7), the A mouth of the first flushing valve (4) and the second flushing valve (5) is interconnected, first enclosed pump (2), second enclosed pump (6), first oil hydraulic motor (3), second oil hydraulic motor (7), the B mouth of the first flushing valve (4) and the second flushing valve (5) is interconnected, first flushing valve (4) is connected with the first oil hydraulic motor (3) and the second oil hydraulic motor (7) after being communicated with the oil outlet of the second flushing valve (5), the flushing pressure setting value of the first flushing valve (4) is greater than the flushing pressure setting value of the second flushing valve (5).The utility model can realize driving separately single enclosed pump work two kinds of pattern flushing flow rate to control to the two enclosed pump work of twin-engined common driving and monomotor, can ensure the normal operation of two kinds of mode of operations.
Description
Technical field
The utility model relates to closed type hydraulic system, specifically a kind of horizontal directional drilling machine double-motive power closed hydraulic system flushing flow rate control gear.
Background technique
In large-scale horizontal directional drilling machine work progress, for ensureing the stationarity of transmission, adopt closed type hydraulic system, be energy saving and raising efficiency of construction more, according to different geological conditions and work progress, single transmit machine is usually needed to work alone and the switching of the twin-engined two kinds of patterns that simultaneously work.Because working connection does not dispel the heat by cooler in closed type hydraulic system, so usually adopt flushing valve that the heat in system is washed away.
In prior art, double-motive power closed hydraulic system flushing flow rate is all carry out mating with twin-engined work simultaneously and do not controlled, when monomotor works, also flushing heat radiation can be carried out by two flushing valves to two oil hydraulic motors, and due to this mode flushing flow rate excessive, the force value of the repairing of closed system can be caused to reduce, particularly after machine uses a period of time, along with the increase of oil leakage quantity in hydraulic element, the deficiency of the overall oil compensation pressure of closed system can be caused, thus make this mode of operation cisco unity malfunction of monomotor.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of horizontal directional drilling machine double-motive power closed hydraulic system flushing flow rate control gear, can realize driving separately the flushing flow rate of single enclosed pump work two kinds of mode of operations to control to the two enclosed pump work of twin-engined common driving and monomotor, all required flushing radiating effect can be met under ensureing two kinds of mode of operations, thus single twin-engined two kinds of mode of operations all can normally be worked, with the demand of satisfied difference construction operating mode.
To achieve these goals, the utility model provides a kind of horizontal directional drilling machine double-motive power closed hydraulic system flushing flow rate control gear, comprise the first motor, second motor, first flushing valve, second flushing valve, described first motor is connected with the first enclosed pump, second motor is connected with the second enclosed pump, the A mouth of the first enclosed pump, the A mouth of the second enclosed pump, the A mouth of the first oil hydraulic motor, the A mouth of the second oil hydraulic motor, the A mouth of the first flushing valve and the A mouth of the second flushing valve are interconnected, the B mouth of the first enclosed pump, the B mouth of the second enclosed pump, the B mouth of the first oil hydraulic motor, the B mouth of the second oil hydraulic motor, the B mouth of the first flushing valve and the B mouth of the second flushing valve are interconnected, the housing revealing mouth L1 and the second oil hydraulic motor after the oil outlet of the oil outlet of described first flushing valve and the second flushing valve is communicated with the housing of the first oil hydraulic motor is revealed mouth L11 and is connected, the housing of described first oil hydraulic motor is revealed after mouth L2 is communicated with the housing leakage mouth L22 of the second oil hydraulic motor and is connected with hydraulic oil container, described first enclosed pump is identical with the oil compensation pressure setting value of the second enclosed pump, the flushing pressure setting value of described first flushing valve and the second flushing valve is all less than the oil compensation pressure setting value of the first enclosed pump and the second enclosed pump, the flushing pressure setting value of the first flushing valve is greater than the flushing pressure setting value of the second flushing valve.
Further, described first flushing valve and the second flushing valve are external flushing valve.
Further, described first flushing valve and the second flushing valve include three-way shuttle valve and relief valve.
The utility model is provided with the first flushing valve and the second flushing valve, and the flushing pressure setting value of the first flushing valve and the second flushing valve is all less than the oil compensation pressure setting value of the first enclosed pump and the second enclosed pump, the flushing pressure setting value of the first flushing valve is greater than the flushing pressure setting value of the second flushing valve, therefore, can realize driving separately the flushing flow rate of single enclosed pump work two kinds of mode of operations to control to the two enclosed pump work of twin-engined common driving and monomotor, all required flushing radiating effect can be met under ensureing two kinds of mode of operations, thus single twin-engined two kinds of mode of operations all can normally be worked, with the demand of satisfied difference construction operating mode, all select external flushing valve additionally by by the first flushing valve and the second flushing valve, the thermal diffusivity of system can be made better.
Accompanying drawing explanation
Fig. 1 is hydraulic schematic diagram of the present utility model.
In figure: 1, the first motor, the 2, first enclosed pump, the 3, first oil hydraulic motor, the 4, first flushing valve, the 5, second flushing valve, the 6, second enclosed pump, the 7, second oil hydraulic motor, the 8, second motor.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of horizontal directional drilling machine double-motive power closed hydraulic system flushing flow rate control gear, comprise the first motor 1, second motor 8, first flushing valve 4, second flushing valve 5, described first motor 1 is connected with the first enclosed pump 2, second motor 8 is connected with the second enclosed pump 6, the A mouth of the first enclosed pump 2, the A mouth of the second enclosed pump 6, the A mouth of the first oil hydraulic motor 3, the A mouth of the second oil hydraulic motor 7, the A mouth of the first flushing valve 4 and the A mouth of the second flushing valve 5 are interconnected, the B mouth of the first enclosed pump 2, the B mouth of the second enclosed pump 6, the B mouth of the first oil hydraulic motor 3, the B mouth of the second oil hydraulic motor 7, the B mouth of the first flushing valve 4 and the B mouth of the second flushing valve 5 are interconnected, the housing revealing mouth L1 and the second oil hydraulic motor 7 after the oil outlet of the oil outlet of described first flushing valve 4 and the second flushing valve 5 is communicated with the housing of the first oil hydraulic motor 3 is revealed mouth L11 and is connected, the housing of described first oil hydraulic motor 3 is revealed after mouth L2 is communicated with the housing leakage mouth L22 of the second oil hydraulic motor 7 and is connected with hydraulic oil container, described first enclosed pump 2 is identical with the oil compensation pressure setting value of the second enclosed pump 6, the flushing pressure setting value of described first flushing valve 4 and the second flushing valve 5 is all less than the oil compensation pressure setting value of the first enclosed pump 2 and the second enclosed pump 6, the flushing pressure setting value of the first flushing valve 4 is greater than the flushing pressure setting value of the second flushing valve 5.
In order to make the thermal diffusivity of system better, described first flushing valve 4 and the second flushing valve 5 can be made to be external flushing valve.
In order to improve the control effects to flushing flow rate further, described first flushing valve 4 and the second flushing valve 5 include three-way shuttle valve and relief valve.
Working procedure: when only having an engine operation, first motor 2 or the second motor 8 work independently into the second flushing valve 5 action all can only be made to dispel the heat to system, here, illustrate when working alone to only have the first motor 2, first motor 1 rotates drive first enclosed pump 2 and operates, when the first enclosed pump 2 rotates forward, its A mouth is high-pressure oil feed mouth, its B mouth is refluxing opening, when the first enclosed pump 2 reverses, its B mouth is high-pressure oil feed mouth, its A mouth is refluxing opening, here only just transferring example to the first enclosed pump 2 to be described, high pressure oil is supplied the A mouth of the first ram valve 4 by the A mouth of the first enclosed pump, the A mouth of the second ram valve 5, the A mouth of the first oil hydraulic motor 3 and the A mouth of the second oil hydraulic motor 7, because only have an enclosed pump work, again because the oil compensation pressure setting value of each enclosed pump is all greater than the flushing pressure setting value of the first flushing valve 4 or the second flushing valve 5, the A mouth of now the second flushing valve 5 and the A mouth of the first flushing valve 4 all obtain high pressure oil, the B mouth of the second flushing valve 5 and the B mouth of the first flushing valve 4 all obtain the repairing of lower pressure, and the flushing pressure setting value of the second flushing valve 5 is less than the flushing pressure setting value of the first flushing valve 4, so the relief valve filler opening in the second flushing valve 5 can first be communicated with the repairing mouth of lower pressure, thus impel the relief valve of its second flushing valve 5 inside to open, so the second flushing valve 5 action, after second flushing valve 5 action, the pressure of system repairing can be caused to reduce, thus be less than the relief valve flushing pressure setting value of the first flushing valve 4, therefore the first flushing valve 4 is failure to actuate.Hydraulic oil can be supplied the housing leakage mouth L1 of the first oil hydraulic motor 3 and housing leakage mouth L11 of the second oil hydraulic motor 7 by the oil outlet of the second flushing valve 5, thus oil hydraulic motor is dispelled the heat, in addition, hydraulic oil is back in hydraulic oil container by the housing leakage mouth L2 of the first oil hydraulic motor 3 and housing leakage mouth L22 of the second oil hydraulic motor 7.If when the first enclosed pump 2 reverses, the B mouth of the second flushing valve 5 and the B mouth of the first flushing valve 4 all obtain high pressure oil, the A mouth of the second flushing valve 5 and the A mouth of the first flushing valve 4 all obtain the repairing of lower pressure simultaneously, relief valve filler opening in second flushing valve 5 is first communicated with the repairing mouth of lower pressure, thus impel the relief valve of its second flushing valve 5 inside to open, so the second flushing valve 5 action; After second flushing valve 5 action, can cause the reduction of system oil compensation pressure, thus be less than the relief valve flushing pressure setting value of the first flushing valve 4, therefore the first flushing valve 4 is failure to actuate.Hydraulic oil can be supplied the housing leakage mouth L1 of the first oil hydraulic motor 3 and housing leakage mouth L11 of the second oil hydraulic motor 7 by the oil outlet of the second flushing valve 5, thus dispels the heat to oil hydraulic motor.
When two motors all work, first motor 1 and the second motor 8 all work, now, first enclosed pump 2 and the second enclosed pump 6 can only rotate forward simultaneously or reverse simultaneously, when rotating forward simultaneously, the A mouth of the first enclosed pump 2 and the A mouth of the second enclosed pump 6 are high-pressure oil feed mouth, the B mouth of the first enclosed pump 2 and the B mouth of the second enclosed pump 6 are as refluxing opening, when the first enclosed pump 2 and the second enclosed pump 6 reverse simultaneously, the B mouth of the first enclosed pump 2 and the B mouth of the second enclosed pump 6 are high-pressure oil feed mouth, the A mouth of the first enclosed pump 2 and the A mouth of the second enclosed pump 6 are as refluxing opening, here only just transferring example to the first enclosed pump 2 and the second enclosed pump 6 to be described simultaneously, when first enclosed pump 2 and the second enclosed pump 6 rotate forward simultaneously, hydraulic oil is supplied the A mouth of the first ram valve 4 by high-pressure oil feed mouth, the A mouth of the second ram valve 4, the A mouth of the first oil hydraulic motor 3 and the A mouth of the second oil hydraulic motor 7, because the first enclosed pump 2 is identical with the oil compensation pressure setting value of the second enclosed pump 6, and the flushing pressure setting value of the first flushing valve 4 and the second flushing valve 5 is all less than the oil compensation pressure setting value of the first enclosed pump 2 and the second enclosed pump 6, the A mouth of now the first flushing valve 4 and the A mouth of the second flushing valve 5 all obtain high pressure oil, and the B mouth of the B mouth of the first flushing valve 4 and the second flushing valve 5 all obtains the repairing of lower pressure, relief valve filler opening in two flushing valves all can be communicated with the repairing mouth of lower pressure, and work due to two enclosed pump simultaneously, repairing is sufficient, thus the first flushing valve 4 and the respective inner relief valve of the second flushing valve 5 can be made all to open, so the first flushing valve 4 and the second flushing valve 5 meeting action simultaneously, the housing of the housing leakage mouth L1 and the second oil hydraulic motor 7 that hydraulic oil are supplied the first oil hydraulic motor 3 to make the oil outlet of the oil outlet of the first flushing valve 4 and the second flushing valve 5 reveals mouth L11, thus all can dispel the heat to two oil hydraulic motors, the housing leakage mouth L2 of the first oil hydraulic motor 3 and the housing of the second oil hydraulic motor 7 are revealed mouth L22 and are back in hydraulic oil container by hydraulic oil.If when the first enclosed pump 2 and the second enclosed pump 6 all reverse, the B mouth of the first flushing valve 4 and the B mouth of the second flushing valve 5 all obtain high pressure oil, the A mouth of the first flushing valve 4 and the A mouth of the second flushing valve 5 all obtain the repairing of lower pressure, relief valve filler opening in two flushing valves is communicated with the repairing mouth of lower pressure, and work due to two enclosed pump simultaneously, repairing is sufficient, thus the first flushing valve 4 and the respective inner relief valve of the second flushing valve 5 can be made to open, so hydraulic oil all can be supplied the housing leakage mouth L1 of the first oil hydraulic motor 3 and housing leakage mouth L11 of the second oil hydraulic motor 7 by the oil outlet of the oil outlet of the first flushing valve 4 and the second flushing valve 5, thus oil hydraulic motor is dispelled the heat.
Claims (3)
1. a horizontal directional drilling machine double-motive power closed hydraulic system flushing flow rate control gear, it is characterized in that, comprise the first motor (1), second motor (8), first flushing valve (4), second flushing valve (5), described first motor (1) is connected with the first enclosed pump (2), second motor (8) is connected with the second enclosed pump (6), the A mouth of the first enclosed pump (2), the A mouth of the second enclosed pump (6), the A mouth of the first oil hydraulic motor (3), the A mouth of the second oil hydraulic motor (7), the A mouth of the first flushing valve (4) and the A mouth of the second flushing valve (5) are interconnected, the B mouth of the first enclosed pump (2), the B mouth of the second enclosed pump (6), the B mouth of the first oil hydraulic motor (3), the B mouth of the second oil hydraulic motor (7), the B mouth of the first flushing valve (4) and the B mouth of the second flushing valve (5) are interconnected, the housing revealing mouth L1 and the second oil hydraulic motor (7) after the oil outlet of the oil outlet of described first flushing valve (4) and the second flushing valve (5) is communicated with the housing of the first oil hydraulic motor (3) is revealed mouth L11 and is connected, the housing of described first oil hydraulic motor (3) is revealed after mouth L2 is communicated with the housing leakage mouth L22 of the second oil hydraulic motor (7) and is connected with hydraulic oil container, described first enclosed pump (2) is identical with the oil compensation pressure setting value of the second enclosed pump (6), the flushing pressure setting value of described first flushing valve (4) and the second flushing valve (5) is all less than the oil compensation pressure setting value of the first enclosed pump (2) and the second enclosed pump (6), the flushing pressure setting value of the first flushing valve (4) is greater than the flushing pressure setting value of the second flushing valve (5).
2., according to a kind of horizontal directional drilling machine double-motive power closed hydraulic system flushing flow rate control gear described in claim 1, it is characterized in that, described first flushing valve (4) and the second flushing valve (5) are external flushing valve.
3. a kind of horizontal directional drilling machine double-motive power closed hydraulic system flushing flow rate control gear according to claim 1 or 2, it is characterized in that, described first flushing valve (4) and the second flushing valve (5) include three-way shuttle valve and relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420402341.7U CN204127043U (en) | 2014-07-21 | 2014-07-21 | Horizontal directional drilling machine double-motive power closed hydraulic system flushing flow rate control gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420402341.7U CN204127043U (en) | 2014-07-21 | 2014-07-21 | Horizontal directional drilling machine double-motive power closed hydraulic system flushing flow rate control gear |
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| Publication Number | Publication Date |
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| CN204127043U true CN204127043U (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420402341.7U Active CN204127043U (en) | 2014-07-21 | 2014-07-21 | Horizontal directional drilling machine double-motive power closed hydraulic system flushing flow rate control gear |
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| CN (1) | CN204127043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065787A (en) * | 2020-09-27 | 2020-12-11 | 中铁工程装备集团有限公司 | Hydraulic control system of cantilever excavator excavation device |
-
2014
- 2014-07-21 CN CN201420402341.7U patent/CN204127043U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065787A (en) * | 2020-09-27 | 2020-12-11 | 中铁工程装备集团有限公司 | Hydraulic control system of cantilever excavator excavation device |
| CN112065787B (en) * | 2020-09-27 | 2023-11-03 | 中铁工程装备集团有限公司 | Hydraulic control system of cantilever development machine excavating device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |