CN105201963A - Hydraulic oil temperature control system and rotary drilling rig - Google Patents
Hydraulic oil temperature control system and rotary drilling rig Download PDFInfo
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- CN105201963A CN105201963A CN201510701417.5A CN201510701417A CN105201963A CN 105201963 A CN105201963 A CN 105201963A CN 201510701417 A CN201510701417 A CN 201510701417A CN 105201963 A CN105201963 A CN 105201963A
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Abstract
The invention discloses a hydraulic oil temperature control system and a rotary drilling rig. The hydraulic oil temperature control system comprises a hydraulic motor, heat dissipation fans are connected to the hydraulic motor, two oil inlets/outlets of the hydraulic motor are communicated with two oil outlets of a reversing valve respectively, an oil inlet of the reversing valve is communicated with an oil inlet of a proportional valve and an output oilway of an oil pump, and an oil outlet of the proportional valve is communicated with an oil return opening of the reversing valve and an oil tank. When the reversing valve is located at the right position, the hydraulic motor rotates in the forward direction; when the reversing valve is located at the left position, the hydraulic motor rotates in the reverse direction. The hydraulic oil temperature control system has a reverse blowing function, the hydraulic oil temperature fluctuation is small, and the heat dissipation effect is good.
Description
Technical field
The present invention relates to Hydraulic Field, particularly a kind of hydraulic oil temperature control system and rotary drilling rig.
Background technique
Analysis of hydraulic oil overheat makes Hydraulic Seals premature aging, sealing effect be deteriorated, and produces leakage of oil; Change hydraulic pressure oil viscosity, hydraulic oil goes bad, and hydraulic system leakage amount strengthens, and causes efficiency of construction reduction, hydraulic system damage fault.
At present, the hydraulic fluid temperature of rotary drilling rig controls mainly to adopt digital output modul, when oil temperature is higher than certain value, opens the switch valve of hydraulic control oil cooling fan, starts fan, hydraulic fluid temperature is reduced; When real-time oil temperature is lower than certain value, switch valve cuts out, and fan stops.This control mode needs switch hydraulic oil fan control valve frequently, and hydraulic fluid temperature fluctuation is large.After rotary drilling rig uses a period of time, external dust enters in radiator gap, causes radiating effect to be deteriorated.When some abnormal factors causes oil temperature to continue to rise, if do not have control measure to continue construction, will work the mischief to hydraulic system.
There is following problem in existing hydraulic oil temperature control system:
1) hydraulic oil cooling system adopts switch valve to control, and hydraulic fluid temperature fluctuation is large.
2) external dust enters in radiator gap, causes radiating effect to be deteriorated.
3) if hydraulic oil temperature continues to rise continue construction, efficiency of construction is low, and will work the mischief to rotary drilling rig.
Summary of the invention
In view of this, the present invention proposes a kind of hydraulic oil temperature control system and rotary drilling rig, to solve the problems such as the large and radiating effect of hydraulic fluid temperature fluctuation is poor.
On the one hand, the invention provides a kind of hydraulic oil temperature control system, comprise oil hydraulic motor, oil hydraulic motor is connected with radiation fan, two oil inlet and outlets of oil hydraulic motor are connected with two oil outlets of selector valve respectively, the filler opening of selector valve is connected with the output circuit of oil pump with the filler opening of Proportional valve, and the oil outlet of Proportional valve is connected with fuel tank with the return opening of selector valve; When selector valve is in right position, oil hydraulic motor rotates forward; When selector valve is in left position, oil hydraulic motor counterrotating.
Further, controller and blowback button is comprised; Controller comprises: when blowback knob is pressed, and controller controls selector valve commutation makes it be in the blowback control module of right position.
Further, fuel tank is provided with the oil temperature sensor for detecting hydraulic fluid temperature in fuel tank in real time; Controller also comprises: controller obtains the real-time oil temperature signal that oil temperature sensor detects, the proportional valve control module of control ratio valve current value.
Further, in controller, be provided with the first Oil temperature threshold value and the second Oil temperature threshold value; In proportional valve control module, when real-time oil temperature is less than or equal to the first Oil temperature threshold value, control ratio valve current value is maximum value; When real-time oil temperature is greater than the first Oil temperature threshold value, and when oil temperature is less than or equal to the second Oil temperature threshold value in real time, control ratio valve current value raises with real-time oil temperature and reduces.
Further, in controller, be provided with the 3rd Oil temperature threshold value; Controller also comprises: when real-time oil temperature is greater than the second Oil temperature threshold value, and when oil temperature is less than or equal to the 3rd Oil temperature threshold value in real time, the oil pump control module that control oil pump power valve current value reduces.
Further, comprise motor, motor is connected with oil pump, and controller also comprises: when real-time oil temperature is greater than the 3rd Oil temperature threshold value, controls the engine control module that motor is in idling mode and warning.
Further, comprise display device, display device intercoms mutually with controller, and blowback button is arranged over the display, first Oil temperature threshold value and the second Oil temperature threshold value and the 3rd Oil temperature threshold value can be arranged over the display, and the real-time oil temperature that oil temperature sensor detects can show over the display.
Further, Proportional valve is electric proportional pressure control valve.
In addition, present invention also offers a kind of rotary drilling rig, comprise above-mentioned hydraulic oil temperature control system.
A kind of hydraulic oil temperature control system provided by the invention and rotary drilling rig, hydraulic fluid temperature only needs to regulate Proportional valve current value size, do not need to control selector valve, avoid frequently manipulating selector valve, cause hydraulic fluid temperature to fluctuate large, therefore technological scheme of the present invention and prior art have the raising of matter.The present invention also has blowing function, and when selector valve is in left position, oil hydraulic motor counterrotating, oil hydraulic motor drives the reverse blowing-out of radiation fan except the dust on radiator, improves radiating effect.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is hydraulic oil temperature control system schematic diagram of the present invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Below in conjunction with Fig. 1, the preferred embodiments of the present invention are described in further detail,
As shown in Figure 1, a kind of hydraulic oil temperature control system, comprise oil hydraulic motor 4, oil hydraulic motor 4 is connected with radiation fan 5, two oil inlet and outlets of oil hydraulic motor 4 are connected with two oil outlets A, B of selector valve 2 respectively, the oil inlet P of selector valve 2 is connected with the output circuit of oil pump 1 with the filler opening of Proportional valve 3, and the oil outlet of Proportional valve 3 is connected with fuel tank 6 with the oil return inlet T of selector valve 2.Selector valve 2 is two-position four-way solenoid directional control valve, and Proportional valve 3 is electric proportional pressure control valve.When selector valve 2 is in right position, oil hydraulic motor 4 rotates forward; When selector valve 2 is in left position, oil hydraulic motor 4 counterrotating.
Proportional valve 3 current value is directly proportional to flow.That is: when the current value of Proportional valve 3 increases gradually, the flow flowing through Proportional valve 3 increases, and the flow flowing through oil hydraulic motor 4 reduces.When the current value of Proportional valve 3 reduces gradually, the flow flowing through Proportional valve 3 reduces, and the flow flowing through oil hydraulic motor 4 increases.
Controlling to automatically realize blowing function, comprising controller and blowback button.Controller comprises blowback control module, in blowback control module, when blowback knob is pressed, controller controls selector valve 2 and obtains electric, and control ratio valve 3 current value is zero, and selector valve 2 is in left position, pressure oil is successively through selector valve 2, oil hydraulic motor 4, selector valve 2, fuel tank 6, oil hydraulic motor 4 counterrotating, the dust on radiator is removed in radiation fan 5 counterrotating, improves radiating effect.In blowback control module, also can control ratio valve 3 current value, hydraulic control motor 4 counterrotating speed.
When blowback knob is not pressed, selector valve 2 must not be electric, and selector valve 2 is in right position, and oil hydraulic motor 4 rotates forward.Now a part of pressure oil is successively through selector valve 2, oil hydraulic motor 4, selector valve 2, fuel tank 6, another pressure oil oil sump tank 6 after Proportional valve 3.
Control to automatically realize hydraulic oil temperature, fuel tank 6 is provided with the oil temperature sensor 7 for detecting hydraulic fluid temperature in fuel tank 6 in real time; The first Oil temperature threshold value and the second Oil temperature threshold value is provided with in controller.
Controller comprises proportional valve control module: in proportional valve control module, and controller obtains the real-time oil temperature signal that oil temperature sensor 7 detects, and when real-time oil temperature is less than or equal to the first Oil temperature threshold value, control ratio valve 3 current value is maximum value.Pressure oil direct passing ratio valve 3 oil sump tank 6 that oil pump 1 exports, because the pressure oil of oil pump 1 output is all by Proportional valve 3 off-load, pressure oil can not flow to oil hydraulic motor 4, and oil hydraulic motor 4 stops the rotation, and radiator is in non-radiating state.
When real-time oil temperature is greater than the first Oil temperature threshold value, and when oil temperature is less than or equal to the second Oil temperature threshold value in real time, control ratio valve 3 current value raises with real-time oil temperature and reduces gradually.Now because Proportional valve 3 current value reduces, pressure oil part passing ratio valve 3 oil sump tank 6 that oil pump 1 exports, another part is successively through selector valve 2, oil hydraulic motor 4, selector valve 2, fuel tank 6, and oil hydraulic motor 4 drives radiation fan 5 to rotate forward, and dispels the heat to radiator.When Proportional valve 3 current value reduces gradually, the hydraulic fluid flow rate flowing through oil hydraulic motor 4 increases gradually.When ratio value current value is zero, the pressure oil that oil pump 1 exports is all successively through selector valve 2, oil hydraulic motor 4, selector valve 2, fuel tank 6.The hydraulic fluid flow rate now flowing through oil hydraulic motor 4 is maximum, and the rotating speed of oil hydraulic motor 4 is the highest, and radiator heat-dissipation effect is best.
Continuing to prevent hydraulic oil temperature to rise, in controller, being provided with the 3rd Oil temperature threshold value; Controller comprises oil pump control module, and in oil pump control module, when real-time oil temperature is greater than the second Oil temperature threshold value, and when oil temperature is less than or equal to the 3rd Oil temperature threshold value in real time, the power valve current value of control oil pump 1 reduces, and reduces oil pump 1 output power.Because the output power of oil pump 1 reduces, hydraulic oil temperature also can correspondingly reduce.
Continue to prevent hydraulic oil temperature to rise, motor is connected with oil pump 1, and engine-driving oil pump 1 rotates.Controller comprises engine control module: in engine control module, when real-time oil temperature is greater than the 3rd Oil temperature threshold value, controls motor and is in idling mode and warning.Reduce oil pump 1 rotating speed by the rotating speed reducing motor, reduce the output power of oil pump 1.Motor enters idling protected mode, prevents from, owing to not taking treatment measures to continue construction, causing efficiency of construction low, the serious consequence that hydraulic system is damaged.
Above-mentioned blowback control module, proportional valve control module, oil pump control module, engine control module are control program.
In order to realize the display of real-time oil temperature and optimum configurations, comprise display device, display device intercoms mutually with controller, blowback button is arranged over the display, first Oil temperature threshold value and the second Oil temperature threshold value and the 3rd Oil temperature threshold value can be arranged by display device, and the real-time oil temperature that oil temperature sensor 7 detects can be shown by display device.
Meanwhile, present invention also offers a kind of rotary drilling rig, comprise above-mentioned hydraulic oil temperature control system.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a hydraulic oil temperature control system, comprise oil hydraulic motor (4), oil hydraulic motor (4) is connected with radiation fan (5), it is characterized in that: two oil inlet and outlets of oil hydraulic motor (4) are connected with two oil outlets of selector valve (2) respectively, the filler opening of selector valve (2) is connected with the output circuit of oil pump (1) with the filler opening of Proportional valve (3), and the oil outlet of Proportional valve (3) is connected with fuel tank (6) with the return opening of selector valve (2); When selector valve (2) is in right position, oil hydraulic motor (4) rotates forward; When selector valve (2) is in left position, oil hydraulic motor (4) counterrotating.
2. hydraulic oil temperature control system according to claim 1, is characterized in that: comprise controller and blowback button; Controller comprises: when blowback knob is pressed, and controller controls selector valve (2) commutation makes it be in the blowback control module of right position.
3. hydraulic oil temperature control system according to claim 2, is characterized in that: on fuel tank (6), be provided with the oil temperature sensor (7) for detecting hydraulic fluid temperature in fuel tank (6) in real time; Controller also comprises: controller obtains the real-time oil temperature signal that oil temperature sensor (7) detects, the proportional valve control module of control ratio valve (3) current value.
4. hydraulic oil temperature control system according to claim 3, is characterized in that: in controller, be provided with the first Oil temperature threshold value and the second Oil temperature threshold value; In proportional valve control module, when real-time oil temperature is less than or equal to the first Oil temperature threshold value, control ratio valve (3) current value is maximum value; When real-time oil temperature is greater than the first Oil temperature threshold value, and when oil temperature is less than or equal to the second Oil temperature threshold value in real time, control ratio valve (3) current value raises with real-time oil temperature and reduces.
5. hydraulic oil temperature control system according to claim 4, is characterized in that: in controller, be provided with the 3rd Oil temperature threshold value; Controller also comprises: when real-time oil temperature is greater than the second Oil temperature threshold value, and when oil temperature is less than or equal to the 3rd Oil temperature threshold value in real time, the oil pump control module that control oil pump (1) power valve current value reduces.
6. hydraulic oil temperature control system according to claim 5, it is characterized in that: comprise motor, motor is connected with oil pump (1), controller also comprises: when real-time oil temperature is greater than the 3rd Oil temperature threshold value, controls the engine control module that motor is in idling mode and warning.
7. hydraulic oil temperature control system according to claim 6, it is characterized in that: comprise display device, display device intercoms mutually with controller, blowback button is arranged over the display, first Oil temperature threshold value and the second Oil temperature threshold value and the 3rd Oil temperature threshold value can be arranged over the display, and the real-time oil temperature that oil temperature sensor (7) detects can show over the display.
8. hydraulic oil temperature control system according to claim 6, is characterized in that: Proportional valve (3) is electric proportional pressure control valve.
9. a rotary drilling rig, is characterized in that, comprises the hydraulic oil temperature control system as described in claim 1 to 8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510701417.5A CN105201963A (en) | 2015-10-26 | 2015-10-26 | Hydraulic oil temperature control system and rotary drilling rig |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510701417.5A CN105201963A (en) | 2015-10-26 | 2015-10-26 | Hydraulic oil temperature control system and rotary drilling rig |
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| CN105201963A true CN105201963A (en) | 2015-12-30 |
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| CN201510701417.5A Pending CN105201963A (en) | 2015-10-26 | 2015-10-26 | Hydraulic oil temperature control system and rotary drilling rig |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340218A (en) * | 2018-12-18 | 2019-02-15 | 中国铁建重工集团有限公司 | A kind of cooling control system and cutting apparatus of diaphram wall cutting apparatus |
| CN111536109A (en) * | 2020-04-30 | 2020-08-14 | 三一重机有限公司 | Oil temperature control method and device and engineering machinery |
| CN111536087A (en) * | 2020-04-30 | 2020-08-14 | 中铁工程机械研究设计院有限公司 | Hydraulic oil temperature control system and control method |
| CN115211285A (en) * | 2022-07-01 | 2022-10-21 | 中国铁建重工集团股份有限公司 | Hydraulic control system and hydraulic control method for packing auger of cotton picker |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109340218A (en) * | 2018-12-18 | 2019-02-15 | 中国铁建重工集团有限公司 | A kind of cooling control system and cutting apparatus of diaphram wall cutting apparatus |
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| CN111536087A (en) * | 2020-04-30 | 2020-08-14 | 中铁工程机械研究设计院有限公司 | Hydraulic oil temperature control system and control method |
| CN111536109B (en) * | 2020-04-30 | 2023-04-21 | 三一重机有限公司 | Oil temperature control method and device and engineering machinery |
| CN115211285A (en) * | 2022-07-01 | 2022-10-21 | 中国铁建重工集团股份有限公司 | Hydraulic control system and hydraulic control method for packing auger of cotton picker |
| CN115211285B (en) * | 2022-07-01 | 2023-05-23 | 中国铁建重工集团股份有限公司 | Hydraulic control system and hydraulic control method for auger of cotton picker |
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Application publication date: 20151230 |