CN104214148A - Intelligent buffering and overflowing device - Google Patents
Intelligent buffering and overflowing device Download PDFInfo
- Publication number
- CN104214148A CN104214148A CN201410433843.0A CN201410433843A CN104214148A CN 104214148 A CN104214148 A CN 104214148A CN 201410433843 A CN201410433843 A CN 201410433843A CN 104214148 A CN104214148 A CN 104214148A
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- valve
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- filler opening
- pipeline
- oil outlet
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- 230000003139 buffering effect Effects 0.000 title claims abstract description 13
- 239000003921 oil Substances 0.000 claims abstract description 54
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 41
- 239000000945 filler Substances 0.000 claims description 44
- 230000005611 electricity Effects 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 8
- 238000005553 drilling Methods 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000001502 supplementing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000035939 shock Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
The invention provides an intelligent buffering and overflowing device. A hydraulic oil tank (1) is communicated with a reversing valve (2) through a hydraulic pump; a first working oil opening A of a control valve is communicated with one end of a rotary motor (3) through a first executing oil opening C1; a fifth check valve (4.4), a third check valve (4.2), a first direct-acting type overflowing valve (5) and a first check valve (4) are connected between the first working oil opening A of the control valve and a pipeline of the rotary motor in parallel; the check valves and the direct-acting type overflowing valve are connected between a second working oil opening B of the control valve and the pipeline of the rotary motor by a second executing oil opening C2; an electric proportion flow control valve (6) is connected among the four check valves in parallel; a main oil pipeline which is connected between the check valves and the direct-acting type overflowing valve in parallel is in pipeline communication with the hydraulic oil tank through an oil supplementing opening T. The hydraulic impact when a rotary drilling rig does rotary movement is reduced and the getting-on shaking amount when the rotary drilling rig rotates is reduced; the stability of a main engine is improved and the service life of related components is prolonged.
Description
Technical field
The present invention relates to a kind of intelligent buffering overflow mechanism, specifically a kind of buffering of the intellectuality for the motion control of swirl gear rotary motor overflow mechanism, belongs to technical field of hydraulic.
Background technique
At present, both at home and abroad getting on the bus of crawler rotary drilling rig all utilizes hydraulic system to drive swirl gear to realize rotating object with getting off, swirl gear is supported and is formed by rotary motor, speed reducer and revolution, rotating specific works principle is that hydraulic system realizes the rotation of motor to rotary motor fuel feeding, rotary motor drives rotary reducer rotation, thereby rotary reducer drives revolution support rotation to realize, gets on the bus and the Turning course of getting off; Between rotary motor and hydraulic system, be conventionally connected an equilibrium valve, equilibrium valve plays buffer function when the start and stop of rotary motor.Domestic used revolution equilibrium valve is comprised of one-way valve and relief valve at present, and one-way valve allows the logical oil of one direction, oppositely cut-off, relief valve passes through setting pressure, when allowing hydraulic circuit higher than setting pressure, open overflow, thereby reach the object of protection operation element, but the cushioning effect of this equilibrium valve is poor, rotary motor easily reverses under compression shock, at rig, do the startup of revolution action, braking and suddenly commutation momentary load change greatly, shock and vibration are frequent, because the rotary inertia of getting on the bus is very large, therefore can cause very large hydraulic shock, hydraulic shock meeting makes whole hydraulic system and element produce vibration and noise, even can cause the damage of hydraulic element, thereby affected the working stability of complete machine, increased the danger of complete machine.
Summary of the invention
The problem existing for above-mentioned prior art, the invention provides a kind of intelligent buffering overflow mechanism, reduce the hydraulic shock of rotary drilling rig when doing revolution action, the rolling momentum of getting on the bus while reducing Operation of Rotary Pile Drill, improve main frame stability, extend the working life of related elements.
To achieve these goals, the technical solution used in the present invention is: a kind of intelligent buffering overflow mechanism, comprise hydraulic oil container, rotary motor, hydraulic oil container is communicated with selector valve by oil hydraulic pump, the left position of selector valve is by the first actuator port A, first carries out hydraulic fluid port C1 is connected with one end pipeline of rotary motor, between the left position of described selector valve and one end connecting pipeline of rotary motor successively and be connected to the filler opening of the 5th one-way valve, the oil outlet of the 3rd one-way valve, the oil outlet of the filler opening of the first direct-acting overflow valve and the first one-way valve, the right position of selector valve is by the second actuator port B, second carries out hydraulic fluid port C2 is connected with the other end pipeline of rotary motor, between the right position of described selector valve and the other end connecting pipeline of rotary motor successively and be connected to the filler opening of the 6th one-way valve, the oil outlet of the 4th one-way valve, the oil outlet of the filler opening of the second direct-acting overflow valve and the second one-way valve, the oil outlet of described the 5th one-way valve is connected with the oil outlet pipeline of the 6th one-way valve, the filler opening of the 3rd one-way valve is connected with the filler opening pipeline of the 4th one-way valve, the oil outlet pipeline of the oil outlet of the first direct-acting overflow valve and the second direct-acting overflow valve is connected, and the filler opening pipeline of the filler opening of the first one-way valve and the second one-way valve is connected, one end of electricity operated proportional flow control valve is attempted by the oil outlet of the 5th one-way valve, between the oil outlet of the 6th one-way valve, the other end is attempted by the filler opening of the 3rd one-way valve, between the filler opening of the 4th one-way valve, hydraulic oil container is attempted by respectively between the oil outlet of the first direct-acting overflow valve and the oil outlet of the second direct-acting overflow valve, the filler opening of the first one-way valve and the filler opening of the second one-way valve by repairing mouth T, the first pressure transducer is connected with the filler opening pipeline of the 5th one-way valve by Pressure testing mouth, and the second pressure transducer is connected with the filler opening pipeline of the 6th one-way valve by Pressure testing mouth.
The first one-way valve and the second one-way valve are repairing one-way valves.
Radiator and filter are set between pipeline and hydraulic oil container.
Selector valve is 3-position 4-way solenoid directional control valve.
Electricity operated proportional flow control valve is leading type electricity operated proportional flow control valve, and the unloading port of electric operated proportional flow control valve is connected with hydraulic oil container.
The present invention is by being integrated in the hydraulic element such as direct-acting overflow valve, one-way valve, electric operated proportional flow control valve on a valve piece, direct-acting overflow valve plays overflow effect, for the swirl gear of overflow rotary drilling rig starting, braking and the instantaneous pressure that produces while commutating suddenly; One-way valve plays the effect that selectivity is linked up corresponding system oil circuit in this device; Electricity operated proportional flow control valve plays the buffer function of intelligent adjust flux in this device, this device can reduce the complete machine rolling momentum of rotary drilling rig when revolution, guarantee the stability of rotary drilling rig, simple in structure, be easy to processing, change quick, electric intelligent control, be particularly suitable for being used in the revolution position of engineering machinery, can play buffering overflow effect to revolution part, improve the complete machine stability of engineering machinery, reduced the hydraulic shock of rotary drilling rig when doing revolution action, the working life of prolongation related elements.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, hydraulic oil container, 2, selector valve, 3, rotary motor, 4, the first one-way valve, the 4.1, second one-way valve, 4.2., the 3rd one-way valve, 4.3, the 4th one-way valve, 4.4, the 5th one-way valve, the 4.5, the 6th one-way valve, the 5, first direct-acting overflow valve, 5.1, the second direct-acting overflow valve, 6, electric operated proportional flow control valve, the 7, first pressure transducer, the 7.1, second pressure transducer.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1: a kind of intelligent buffering overflow mechanism provided by the invention, comprise hydraulic oil container 1, rotary motor 3, hydraulic oil container 1 is communicated with selector valve 2 by oil hydraulic pump, the left position of selector valve 2 is by the first actuator port A, first carries out hydraulic fluid port C1 is connected with one end pipeline of rotary motor 3, between the left position of described selector valve 2 and one end connecting pipeline of rotary motor 3 successively and be connected to the filler opening of the 5th one-way valve 4.4, the oil outlet of the 3rd one-way valve 4.2, the oil outlet of the filler opening of the first direct-acting overflow valve 5 and the first one-way valve 4, the right position of selector valve 2 is by the second actuator port B, second carries out hydraulic fluid port C2 is connected with the other end pipeline of rotary motor 3, between the right position of described selector valve 2 and the other end connecting pipeline of rotary motor 3 successively and be connected to the filler opening of the 6th one-way valve 4.5, the oil outlet of the 4th one-way valve 4.3, the oil outlet of the filler opening of the second direct-acting overflow valve 5.1 and the second one-way valve 4.1, the oil outlet of described the 5th one-way valve 4.4 is connected with the oil outlet pipeline of the 6th one-way valve 4.5, the filler opening of the 3rd one-way valve 4.2 is connected with the filler opening pipeline of the 4th one-way valve 4.3, the oil outlet of the first direct-acting overflow valve 5 is connected with the oil outlet pipeline of the second direct-acting overflow valve 5.1, and the filler opening of the first one-way valve 4 is connected with the filler opening pipeline of the second one-way valve 4.1, one end of electricity operated proportional flow control valve 6 is attempted by the oil outlet of the 5th one-way valve 4.4, between the oil outlet of the 6th one-way valve 4.5, the other end is attempted by the filler opening of the 3rd one-way valve 4.2, between the filler opening of the 4th one-way valve 4.3, hydraulic oil container 1 is attempted by respectively between the oil outlet of the first direct-acting overflow valve 5 and the oil outlet of the second direct-acting overflow valve 5.1, the filler opening of the first one-way valve 4 and the filler opening of the second one-way valve 4.1 by repairing mouth T, the first pressure transducer 7 is connected with the filler opening pipeline of the 5th one-way valve 4.4 by Pressure testing mouth, and the second pressure transducer 7.1 is connected with the filler opening pipeline of the 6th one-way valve 4.5 by Pressure testing mouth.
The first one-way valve 4 and the second one-way valve 4.1 can be common one-way valve, also can be repairing one-way valve, be preferably in this application repairing one-way valve, the spring force of repairing one-way valve is very weak, pressure is in 0.5bar left and right, facilitate repairing, can effectively reduce the cumulative error of shock and vibration and the elimination synchronizing circuit of system.
Further, between pipeline and hydraulic oil container 1, radiator and filter are set, the effect that can hydraulic oil be realized cooling and be filtered.
Preferably, selector valve 2 is 3-position 4-way solenoid directional control valve, simple in structure, processes easyly, and anti-pollution hydraulic pressure oil liquid ability is stronger, is not easy to produce to stop up, and functional reliability is high, fast response time.
Further, electricity operated proportional flow control valve 6 is leading type electricity operated proportional flow control valve, the unloading port of electricity operated proportional flow control valve 6 is connected with hydraulic oil container 1, excess oil in electric operated proportional flow control valve 6 is discharged in hydraulic oil container 1, thereby make electric operated proportional flow control valve not be subject to the interference of excess oil in spring chamber, move more accurate.
Working principle: when the right position of selector valve 2 is connected, the hydraulic oil second execution hydraulic fluid port C2 that flows through along main oil pipe road by the second actuator port B drives rotary motor 3 to rotate, the hydraulic oil in main oil pipe road of flowing through has the filler opening that part is diverted to the 5th one-way valve 4.4 and flows to electric operated proportional flow control valve 6, electricity operated proportional flow control valve 6 is according to the first pressure transducer 7, the second pressure transducer 7.1 detects the first actuator port A, the pressure of the second actuator port B changes, when the pressure detecting changes over certain numerical value, drive the spool of electric operated proportional flow control valve 6 to open, electricity operated proportional flow control valve 6 can allow a small amount of hydraulic oil process, now, due to the pressure of the 4th one-way valve 4.3 pressure higher than the 3rd one-way valve 4.2, the a small amount of hydraulic oil of electric operated proportional flow control valve 6 of flowing through can flow back to hydraulic oil container 1 through the 3rd one-way valve 4.2, in this flow process, when actuator in rotation motion process owing to leaking or when overflow causes hydraulic oil to lack, repairing mouth T is responsible for to system repairing, when the pressure of the first direct-acting overflow valve 5 and the second direct-acting overflow valve 5.1 surpasses 28MP, the first direct-acting overflow valve 5, the second direct-acting overflow valve 5.1 conductings, the hydraulic oil that repairing mouth T flows out first direct-acting overflow valve 5 of can flowing through, the second direct-acting overflow valve 5.1, the first one-way valve 4 and the second one-way valve 4.1, first direct-acting overflow valve 5 of flowing through, the hydraulic oil of the first one-way valve 4 can flow back to hydraulic oil container 1 through pipeline, second direct-acting overflow valve 5.1 of flowing through, the hydraulic oil of the second one-way valve 4.1 flows to rotary motor 3, in case there is rotary motor 3, inhale the empty situation that causes element damage.
In like manner, when the left position of selector valve 2 is connected, the hydraulic oil first execution hydraulic fluid port C1 that flows through along main oil pipe road by the first actuator port A drives rotary motor 3 to rotate, the hydraulic oil in main oil pipe road of flowing through has the filler opening that part is diverted to the 5th one-way valve 4.4 and flows to electric operated proportional flow control valve 6, electricity operated proportional flow control valve 6 is according to the first pressure transducer 7, the second pressure transducer 7.1 detects the first actuator port A, the pressure of the second actuator port B changes, when the pressure detecting changes over certain numerical value, drive the spool of electric operated proportional flow control valve 6 to open, electricity operated proportional flow control valve 6 can allow a small amount of hydraulic oil process, now, due to the pressure of the 3rd one-way valve 4.2 pressure higher than the 4th one-way valve 4.3, the a small amount of hydraulic oil of electric operated proportional flow control valve 6 of flowing through can flow back to hydraulic oil container 1 through the 4th one-way valve 4.3, in this flow process, when actuator in rotation motion process owing to leaking or when overflow causes hydraulic oil to lack, repairing mouth T is responsible for to system repairing, when the pressure of the first direct-acting overflow valve 5 and the second direct-acting overflow valve 5.1 surpasses 28MP, the first direct-acting overflow valve 5, the second direct-acting overflow valve 5.1 conductings, the hydraulic oil that repairing mouth T flows out first direct-acting overflow valve 5 of can flowing through, the second direct-acting overflow valve 5.1, the first one-way valve 4 and the second one-way valve 4.1, second direct-acting overflow valve 5.1 of flowing through, the hydraulic oil of the second one-way valve 4.1 can flow back to hydraulic oil container 1 through pipeline, first direct-acting overflow valve 5 of flowing through, the hydraulic oil of the first one-way valve 5.1 flows to rotary motor 3, in case there is rotary motor 3, inhale the empty situation that causes element damage.
When starting, brake and commutate suddenly in Operation of Rotary Pile Drill mechanism, by the pressure parameter variable quantity of Pressure testing mouth M1, Pressure testing mouth M2, variable quantity enters controller, controller opens its spool to electric operated proportional flow control valve 6 according to variable quantity by pulse duration modulation restituted signal PWM output variable current, electricity operated proportional flow control valve 6 can allow a small amount of hydraulic oil to enter into low voltage terminal from the high voltage terminal of rotary motor 3, thereby reduces the high pressure of rotary motor 3 high voltage terminals; The first direct-acting overflow valve 5 and the second direct-acting overflow valve 5.1 play overflow effect; the instantaneous pressure producing in start and stop and when commutation for the protection of rotary motor 3 impacts; can effectively solve rotary drilling rig gets on the bus and shakes the large problem of momentum when stopping turning round; prevent the reversion of rotary motor 3, improved the security and stability of complete machine.
Claims (5)
1. an intellectuality cushions overflow mechanism, comprise hydraulic oil container (1), rotary motor (3), hydraulic oil container (1) is communicated with selector valve (2) by oil hydraulic pump, it is characterized in that, the left position of selector valve (2) is by the first actuator port A, first carries out hydraulic fluid port C1 is connected with one end pipeline of rotary motor (3), between the left position of described selector valve (2) and one end connecting pipeline of rotary motor (3) successively and be connected to the filler opening of the 5th one-way valve (4.4), the oil outlet of the 3rd one-way valve (4.2), the oil outlet of the filler opening of the first direct-acting overflow valve (5) and the first one-way valve (4), the right position of selector valve (2) is by the second actuator port B, second carries out hydraulic fluid port C2 is connected with the other end pipeline of rotary motor (3), between the right position of described selector valve (2) and the other end connecting pipeline of rotary motor (3) successively and be connected to the filler opening of the 6th one-way valve (4.5), the oil outlet of the 4th one-way valve (4.3), the oil outlet of the filler opening of the second direct-acting overflow valve (5.1) and the second one-way valve (4.1), the oil outlet of described the 5th one-way valve (4.4) is connected with the oil outlet pipeline of the 6th one-way valve (4.5), the filler opening of the 3rd one-way valve (4.2) is connected with the filler opening pipeline of the 4th one-way valve (4.3), the oil outlet of the first direct-acting overflow valve (5) is connected with the oil outlet pipeline of the second direct-acting overflow valve (5.1), and the filler opening of the first one-way valve (4) is connected with the filler opening pipeline of the second one-way valve (4.1), one end of electricity operated proportional flow control valve (6) is attempted by the oil outlet of the 5th one-way valve (4.4), between the oil outlet of the 6th one-way valve (4.5), the other end is attempted by the filler opening of the 3rd one-way valve (4.2), between the filler opening of the 4th one-way valve (4.3), hydraulic oil container (1) is attempted by respectively between the oil outlet of the first direct-acting overflow valve (5) and the oil outlet of the second direct-acting overflow valve (5.1), the filler opening of the first one-way valve (4) and the filler opening of the second one-way valve (4.1) by repairing mouth T, the first pressure transducer (7) is connected with the filler opening pipeline of the 5th one-way valve (4.4) by Pressure testing mouth, and the second pressure transducer (7.1) is connected with the filler opening pipeline of the 6th one-way valve (4.5) by Pressure testing mouth.
2. a kind of intelligent buffering overflow mechanism according to claim 1, is characterized in that, described the first one-way valve (4) and the second one-way valve (4.1) are repairing one-way valves.
3. a kind of intelligent buffering overflow mechanism according to claim 1 and 2, is characterized in that, between pipeline and hydraulic oil container (1), radiator and filter is set.
4. a kind of intelligent buffering overflow mechanism according to claim 1 and 2, is characterized in that, described selector valve (2) is 3-position 4-way solenoid directional control valve.
5. a kind of intelligent buffering overflow mechanism according to claim 3, is characterized in that, described electric operated proportional flow control valve (6) is leading type electricity operated proportional flow control valve, and the unloading port of electric operated proportional flow control valve (6) is connected with hydraulic oil container (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410433843.0A CN104214148A (en) | 2014-08-29 | 2014-08-29 | Intelligent buffering and overflowing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410433843.0A CN104214148A (en) | 2014-08-29 | 2014-08-29 | Intelligent buffering and overflowing device |
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| Publication Number | Publication Date |
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| CN104214148A true CN104214148A (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410433843.0A Pending CN104214148A (en) | 2014-08-29 | 2014-08-29 | Intelligent buffering and overflowing device |
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| CN (1) | CN104214148A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545536A (en) * | 2015-09-21 | 2017-03-29 | 徐工集团工程机械股份有限公司 | Slow supply oil valve, slow supply oil system and deep drilling rig |
| CN107762995A (en) * | 2017-09-13 | 2018-03-06 | 江苏恒立液压科技有限公司 | Novel electric proportional overflow device |
| CN109611392A (en) * | 2018-11-16 | 2019-04-12 | 北汽福田汽车股份有限公司 | The hydraulic control system and crane of crane |
| CN110360189A (en) * | 2019-08-20 | 2019-10-22 | 北京三一智造科技有限公司 | Oil cylinder shock resistance protective device and its method |
| CN113833701A (en) * | 2021-09-07 | 2021-12-24 | 徐州徐工挖掘机械有限公司 | Hydraulic system of rotary machine |
| CN116624449A (en) * | 2023-07-25 | 2023-08-22 | 索特传动设备有限公司 | Overflow valve, hydraulic system and working machine |
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| CN116624449A (en) * | 2023-07-25 | 2023-08-22 | 索特传动设备有限公司 | Overflow valve, hydraulic system and working machine |
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Application publication date: 20141217 |
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| WD01 | Invention patent application deemed withdrawn after publication |