CN202597302U - Hydraulic system and long spiral drilling machine with hydraulic system - Google Patents
Hydraulic system and long spiral drilling machine with hydraulic system Download PDFInfo
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- CN202597302U CN202597302U CN 201220246173 CN201220246173U CN202597302U CN 202597302 U CN202597302 U CN 202597302U CN 201220246173 CN201220246173 CN 201220246173 CN 201220246173 U CN201220246173 U CN 201220246173U CN 202597302 U CN202597302 U CN 202597302U
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Abstract
The utility model relates to a hydraulic system, which comprises a reversing valve and a hydraulic cylinder, wherein two work oil openings of the reversing valve are respectively communicated with a rod cavity and a rodless cavity of the hydraulic cylinder through a first oil path and the second oil path, the rod cavity and the rodless cavity are also communicated through a bypass oil path, a controlled valve is arranged on the bypass oil path, a one-way valve for preventing hydraulic oil from flowing from the rod cavity to the reversing valve is arranged on the first oil path positioned between the bypass oil path and the reversing valve, and a liquid control one-way value is also arranged on the second oil path arranged between the bypass oil path and the reversing valve. The utility model also relates to a long spiral drilling machine with the hydraulic system. When the hydraulic oil flows from the reversing valve to the rodless cavity through the second oil path, the rodless cavity and the rod cavity are communicated, when the hydraulic oil flows from the reversing valve to the rod cavity through the first oil path, the controlled valve is closed, and the extending-out speed of the piston rod is accelerated on the premise of not influencing the retraction speed of the piston rod.
Description
Technical field
The utility model relates to a kind of hydraulic system, also relates to the long-spiral drilling machine with this hydraulic system.
Background technique
At present, the long-spiral drilling machine walking walkings that adopt drive walking dolly by one or two hydraulic system and on shoe boots track, walk more; Platform advances with respect to the shoe boots or retreats thereby drive is got on the bus, and realizes the rig displacement, and existing hydraulic system generally comprises fuel tank, oil hydraulic pump, oil hydraulic cylinder and selector valve; Selector valve is generally three position four-way directional control valve, and the hydraulic fluid port that selector valve is communicated with oil hydraulic pump is the pressure hydraulic fluid port, and the pressure hydraulic fluid port is connected through oil circuit with the oil hydraulic pump oil outlet; The hydraulic fluid port that selector valve is communicated with fuel tank is a return opening, and selector valve is actuator port with second oil circuit with the hydraulic fluid port that corresponding oil hydraulic cylinder rod chamber links to each other with rodless cavity through first oil circuit respectively, for long-spiral drilling machine; Because the oil hydraulic pump output flow is constant; And effective work area of oil hydraulic cylinder rod chamber and rodless cavity does not wait, for identical flow, in the oil hydraulic cylinder piston rod stretch out and the speed of the hydraulic cylinder body of withdrawing just unequal; The effective work area of rod chamber is little; So rapid speed during the piston rod withdrawal, the effective work area of rodless cavity is big, and speed was slower when piston rod stretched out.When builder's yard stake and pile spacing were far away, the rig shift time had a strong impact on generation to efficiency of construction.
Summary of the invention
The purpose of the utility model is to be provided at and improves a kind of hydraulic system that piston rod stretches out speed under the prerequisite that does not influence piston rod retraction speed in the oil hydraulic cylinder, and the utility model also provides the long-spiral drilling machine with this hydraulic system simultaneously.
In order to address the above problem; A kind of hydraulic system of the utility model; Comprise selector valve and oil hydraulic cylinder; Two actuator ports of selector valve are communicated with the rod chamber and the rodless cavity of said oil hydraulic cylinder through first oil circuit and second oil circuit respectively; Said rod chamber and said rodless cavity also are communicated with through the bypass oil circuit; On this bypass oil circuit, be provided with Controlled valve, this Controlled valve is connected said rod chamber and rodless cavity during to the hydraulic cylinder body external moving and is closed said bypass oil circuit at piston rod when moving to hydraulic cylinder body is inner at piston rod, prevents that hydraulic oil from being flowed to the one-way valve of said selector valve by said rod chamber on said first oil circuit between said bypass oil circuit and the said selector valve, being provided with; Said second oil circuit between said bypass oil circuit and the said selector valve is provided with Pilot operated check valve, and the said selector valve actuator port that links to each other with said second oil circuit is communicated with the control port of this Pilot operated check valve.
Said Controlled valve is a Pilot operated check valve; This Pilot operated check valve comprises filler opening, oil outlet and control port; The filler opening of this Pilot operated check valve is communicated with said rodless cavity through said bypass oil circuit; The oil outlet of this Pilot operated check valve is communicated with said rod chamber through said bypass oil circuit, and the said selector valve actuator port that links to each other with said first oil circuit is communicated with the control port of this Pilot operated check valve.
Said Controlled valve is a solenoid valve.
Said selector valve is a three position four-way directional control valve.
A kind of long-spiral drilling machine; Comprise the hydraulic system of being located on the traveller; This hydraulic system comprises selector valve and oil hydraulic cylinder; Two actuator ports of selector valve are communicated with the rod chamber and the rodless cavity of said oil hydraulic cylinder through first oil circuit and second oil circuit respectively; Said rod chamber and said rodless cavity also are communicated with through the bypass oil circuit; On this bypass oil circuit, be provided with Controlled valve, this Controlled valve is connected said rod chamber and rodless cavity during to the hydraulic cylinder body external moving and is closed said bypass oil circuit at piston rod when moving to hydraulic cylinder body is inner at piston rod, prevents that hydraulic oil from being flowed to the one-way valve of said selector valve by said rod chamber on said first oil circuit between said bypass oil circuit and the said selector valve, being provided with; Said second oil circuit between said bypass oil circuit and the said selector valve is provided with Pilot operated check valve, and the said selector valve actuator port that links to each other with said second oil circuit is communicated with the control port of this Pilot operated check valve.
Said Controlled valve is a Pilot operated check valve; This Pilot operated check valve comprises filler opening, oil outlet and control port; The filler opening of this Pilot operated check valve is communicated with said rodless cavity through said bypass oil circuit; The oil outlet of this Pilot operated check valve is communicated with said rod chamber through said bypass oil circuit, and the said selector valve actuator port that links to each other with said first oil circuit is communicated with the control port of this Pilot operated check valve.
Said Controlled valve is a solenoid valve.
Said selector valve is a three position four-way directional control valve.
The utility model when hydraulic oil when selector valve flows to rodless cavity through second oil circuit, Controlled valve is opened, rodless cavity and rod chamber are communicated with through the bypass oil circuit; Because stopping of one-way valve; The hydraulic oil that rod chamber is discharged flows into rodless cavity through the bypass oil circuit, has strengthened the hydraulic fluid flow rate that flows into rodless cavity, has accelerated the speed of stretching out of piston rod in the oil hydraulic cylinder; When hydraulic oil when selector valve flows to rod chamber through first oil circuit; Controlled valve is closed, and the hydraulic fluid flow rate not influence of the hydraulic oil that rodless cavity is discharged to getting into rod chamber improved piston rod and stretched out speed under the prerequisite that does not influence the piston rod retraction speed.
Description of drawings
Fig. 1 is the phase diagram of hydraulic system when three position four-way directional control valve is positioned at the normality position among the utility model embodiment;
Fig. 2 is the phase diagram during the inside retraction of piston rod among Fig. 1;
Fig. 3 is the phase diagram when piston rod outwards moves among Fig. 1;
Fig. 4 is the structural representation of long-spiral drilling machine traveller among the utility model embodiment;
Fig. 5 is the plan view of Fig. 4.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is done detailed description:
A kind of embodiment of hydraulic system; Shown in Fig. 1-3; Comprise fuel tank 15, oil hydraulic pump 14, selector valve and oil hydraulic cylinder 9; Selector valve is a three position four-way directional control valve 13 in the present embodiment; Two actuator ports of three position four-way directional control valve 13 are communicated with rodless cavity 901 with the rod chamber 903 of oil hydraulic cylinder 9 through first oil circuit 16 and second oil circuit 17 respectively; Rod chamber 903 also is communicated with through bypass oil circuit 18 with rodless cavity 901; On this bypass oil circuit 18, be provided with Controlled valve, this Controlled valve is connected rod chamber 903 and rodless cavity 901 during to the hydraulic cylinder body external moving and is closed bypass oil circuit 18 at piston rod 902 when moving to hydraulic cylinder body is inner at piston rod 902, prevents that hydraulic oil from being flowed to the one-way valve 12 of three position four-way directional control valve 13 by rod chamber 903 on first oil circuit 16 between bypass oil circuit 18 and the three position four-way directional control valve 13, being provided with; Controlled valve is a Pilot operated check valve 11; This Pilot operated check valve 11 comprises filler opening, oil outlet and control port, and the filler opening of this Pilot operated check valve 11 is communicated with rodless cavity 901 through bypass oil circuit 18, and these Pilot operated check valve 11 oil outlets are communicated with rod chamber 903 through bypass oil circuit 18; Three position four-way directional control valve 13 actuator ports that link to each other with first oil circuit 16 are communicated with the control port of this Pilot operated check valve 11; Second oil circuit 17 between bypass oil circuit 18 and the three position four-way directional control valve 13 is provided with Pilot operated check valve 10, and this Pilot operated check valve 10 comprises filler opening, oil outlet and control port, and the filler opening of this Pilot operated check valve 10 is communicated with the relevant work hydraulic fluid port of three position four-way directional control valve 13 through second oil circuit 17; The oil outlet of this Pilot operated check valve 10 is communicated with rodless cavity 901 through second oil circuit 17, and three position four-way directional control valve 13 actuator ports that link to each other with second oil circuit 17 are communicated with the control port of this Pilot operated check valve 10.
Present embodiment when hydraulic oil when three position four-way directional control valve 13 flows to rodless cavity 901 through second oil circuit 17; Pilot operated check valve 11 is opened two-way admittance; Rodless cavity 901 is communicated with through bypass oil circuit 18 with rod chamber 903, and owing to stopping of one-way valve 12, the hydraulic oil that rod chamber 903 is discharged flows into rodless cavity 901 through bypass oil circuit 18; Strengthened the hydraulic fluid flow rate that flows into rodless cavity 901; Accelerated the speed that piston rod stretches out hydraulic cylinder body, when hydraulic oil when three position four-way directional control valve 13 flows to rod chamber 903 through first oil circuit 16, Pilot operated check valve 11 closures; The hydraulic fluid flow rate not influence of the hydraulic oil that rodless cavity 901 is discharged to getting into rod chamber 903 or not and improves piston rod 902 under the prerequisite of piston rod 902 retraction speed and stretch out speed; The oil hydraulic cylinder internal diameter square be two times of diameter of piston rod square the time, piston rod 902 shuttle speed equate.
In other embodiments of the utility model, different with the foregoing description is, Controlled valve can also be solenoid valve, and described selector valve can also be two position and four-way reversing valves or the like.
A kind of embodiment of long-spiral drilling machine shown in Fig. 1-5, comprises traveller and is located at the hydraulic system on the traveller; Traveller comprises drilling machine platform 1, supports 6 walking dollies 5 that link together with drilling machine platform 4 and carry out boots 2 with walking dolly 5 wheels 4 rig that cooperates that rolls through revolution, and the cylinder body of oil hydraulic cylinder and piston rod 3 are connected in respectively on dolly 5 and the rig shoe boots 2, and four jiaos of drilling machine platform 1 have four support oil cylinders 8; During use, four support oil cylinders 8 are all withdrawn, this moment, rig was carried out boots 2 close proximity to grounds; Operating hydraulically operated cylinder Joystick makes hydraulic cylinder body outwards move relative to piston rod, under the promotion of oil hydraulic cylinder; Trundle 4 on the walking dolly 5 rolls on the rail 7 of rig shoe boots 2, drives drilling machine platform 1 and moves right with respect to rig shoe boots 2, then; Let four support oil cylinders 8 all stretch out, this moment, rig was carried out boots 2 built on stilts, and rig leans on four support oil cylinders 8 to contact with ground; Rig is carried out boots 2 and is lifted by walking dolly 5, and operating hydraulically operated cylinder Joystick makes the piston rod withdrawal; Under the promotion of piston rod, rig is carried out boots 2 and is moved right with respect to drilling machine platform 1, after piston rod is all withdrawn; Pack up four support oil cylinders 8, repeat an action, rig is able to constantly advance forward; But existing hydraulic system makes that speed was slower when piston rod stretched out, and when builder's yard stake and pile spacing were far away, the rig shift time had a strong impact on generation to efficiency of construction; The hydraulic system that improvement has comprises fuel tank 15, oil hydraulic pump 14, selector valve and oil hydraulic cylinder 9; Selector valve is a three position four-way directional control valve 13 in the present embodiment; Two actuator ports of three position four-way directional control valve 13 are communicated with rodless cavity 901 with the rod chamber 903 of oil hydraulic cylinder 9 through first oil circuit 16 and second oil circuit 17 respectively; Rod chamber 903 also is communicated with through bypass oil circuit 18 with rodless cavity 901; On this bypass oil circuit 18, be provided with Controlled valve; This Controlled valve is connected rod chamber 903 and rodless cavity 901 during to the hydraulic cylinder body external moving and is closed bypass oil circuit 18 at piston rod 902 when moving to hydraulic cylinder body is inner at piston rod 902; Prevent that hydraulic oil from being flowed to the one-way valve 12 of three position four-way directional control valve 13 by rod chamber 903 on first oil circuit 16 between bypass oil circuit 18 and the three position four-way directional control valve 13, being provided with; Controlled valve is a Pilot operated check valve 11; This Pilot operated check valve 11 comprises filler opening, oil outlet and control port, and the filler opening of this Pilot operated check valve 11 is communicated with rodless cavity 901 through bypass oil circuit 18, and these Pilot operated check valve 11 oil outlets are communicated with rod chamber 903 through bypass oil circuit 18; Three position four-way directional control valve 13 actuator ports that link to each other with first oil circuit 16 are communicated with the control port of this Pilot operated check valve 11; Second oil circuit 17 between bypass oil circuit 18 and the three position four-way directional control valve 13 is provided with Pilot operated check valve 10, and this Pilot operated check valve 10 comprises filler opening, oil outlet and control port, and the filler opening of this Pilot operated check valve 10 is communicated with the relevant work hydraulic fluid port of three position four-way directional control valve 13 through second oil circuit 17; The oil outlet of this Pilot operated check valve 10 is communicated with rodless cavity 901 through second oil circuit 17, and three position four-way directional control valve 13 actuator ports that link to each other with second oil circuit 17 are communicated with the control port of this Pilot operated check valve 10; Hydraulic system after the improvement can improve piston rod 902 and stretch out speed under the prerequisite that does not influence piston rod 902 retraction speed; The oil hydraulic cylinder internal diameter square be two times of piston rod 902 diameters square the time, piston rod 902 shuttle speed equate.
In other embodiments of the utility model long-spiral drilling machine, different with above-mentioned long-spiral drilling machine embodiment is, Controlled valve can also be solenoid valve, and described selector valve can also be two position and four-way reversing valves or the like.
This hydraulic system also is used for the hydraulically powered machinery of multiple needs.
Claims (8)
1. hydraulic system; Comprise selector valve and oil hydraulic cylinder; Two actuator ports of selector valve are communicated with the rod chamber and the rodless cavity of said oil hydraulic cylinder through first oil circuit and second oil circuit respectively; It is characterized in that: said rod chamber and said rodless cavity also are communicated with through the bypass oil circuit; On this bypass oil circuit, be provided with Controlled valve; This Controlled valve is connected said rod chamber and rodless cavity during to the hydraulic cylinder body external moving and is closed said bypass oil circuit at piston rod when moving to hydraulic cylinder body is inner at piston rod; Prevent that hydraulic oil from flowing to the one-way valve of said selector valve by said rod chamber on said first oil circuit between said bypass oil circuit and the said selector valve, being provided with, said second oil circuit between said bypass oil circuit and the said selector valve is provided with Pilot operated check valve, and the said selector valve actuator port that links to each other with said second oil circuit is communicated with the control port of this Pilot operated check valve.
2. a kind of hydraulic system according to claim 1; It is characterized in that: said Controlled valve is a Pilot operated check valve; This Pilot operated check valve comprises filler opening, oil outlet and control port; The filler opening of this Pilot operated check valve is communicated with said rodless cavity through said bypass oil circuit, and the oil outlet of this Pilot operated check valve is communicated with said rod chamber through said bypass oil circuit, and the said selector valve actuator port that links to each other with said first oil circuit is communicated with the control port of this Pilot operated check valve.
3. a kind of hydraulic system according to claim 1 is characterized in that: said Controlled valve is a solenoid valve.
4. according to claim 1 or 2 or 3 described a kind of hydraulic systems, it is characterized in that: said selector valve is a three position four-way directional control valve.
5. long-spiral drilling machine; Comprise the hydraulic system of being located on the traveller; This hydraulic system comprises selector valve and oil hydraulic cylinder; Two actuator ports of selector valve are communicated with the rod chamber and the rodless cavity of said oil hydraulic cylinder through first oil circuit and second oil circuit respectively; It is characterized in that: said rod chamber and said rodless cavity also are communicated with through the bypass oil circuit; On this bypass oil circuit, be provided with Controlled valve, this Controlled valve is connected said rod chamber and rodless cavity during to the hydraulic cylinder body external moving and is closed said bypass oil circuit at piston rod when moving to hydraulic cylinder body is inner at piston rod, prevents that hydraulic oil from being flowed to the one-way valve of said selector valve by said rod chamber on said first oil circuit between said bypass oil circuit and the said selector valve, being provided with; Said second oil circuit between said bypass oil circuit and the said selector valve is provided with Pilot operated check valve, and the said selector valve actuator port that links to each other with said second oil circuit is communicated with the control port of this Pilot operated check valve.
6. a kind of long-spiral drilling machine according to claim 5; It is characterized in that: said Controlled valve is a Pilot operated check valve; This Pilot operated check valve comprises filler opening, oil outlet and control port; The filler opening of this Pilot operated check valve is communicated with said rodless cavity through said bypass oil circuit, and the oil outlet of this Pilot operated check valve is communicated with said rod chamber through said bypass oil circuit, and the said selector valve actuator port that links to each other with said first oil circuit is communicated with the control port of this Pilot operated check valve.
7. a kind of long-spiral drilling machine according to claim 5 is characterized in that: said Controlled valve is a solenoid valve.
8. according to claim 5 or 6 or 7 described a kind of long-spiral drilling machines, it is characterized in that: said selector valve is a three position four-way directional control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220246173 CN202597302U (en) | 2012-05-29 | 2012-05-29 | Hydraulic system and long spiral drilling machine with hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220246173 CN202597302U (en) | 2012-05-29 | 2012-05-29 | Hydraulic system and long spiral drilling machine with hydraulic system |
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| Publication Number | Publication Date |
|---|---|
| CN202597302U true CN202597302U (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220246173 Expired - Fee Related CN202597302U (en) | 2012-05-29 | 2012-05-29 | Hydraulic system and long spiral drilling machine with hydraulic system |
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| Country | Link |
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| CN (1) | CN202597302U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867140A (en) * | 2014-03-20 | 2014-06-18 | 湖州市千金宝云机械铸件有限公司 | Hydraulic drive drilling machine |
| CN109538574A (en) * | 2018-12-28 | 2019-03-29 | 泸州市龙马潭区长江液压件有限公司 | Open body hopper hydraulic cylinder |
| CN110219591A (en) * | 2019-07-25 | 2019-09-10 | 桂林航天工业学院 | A kind of engineering geo-drilling equipment running gear |
| CN114183580A (en) * | 2021-10-28 | 2022-03-15 | 武汉船用机械有限责任公司 | Hydraulic control system of arc-shaped door of concrete bucket |
-
2012
- 2012-05-29 CN CN 201220246173 patent/CN202597302U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867140A (en) * | 2014-03-20 | 2014-06-18 | 湖州市千金宝云机械铸件有限公司 | Hydraulic drive drilling machine |
| CN103867140B (en) * | 2014-03-20 | 2016-03-23 | 湖州市千金宝云机械铸件有限公司 | Hydraulic-driven rig |
| CN109538574A (en) * | 2018-12-28 | 2019-03-29 | 泸州市龙马潭区长江液压件有限公司 | Open body hopper hydraulic cylinder |
| CN110219591A (en) * | 2019-07-25 | 2019-09-10 | 桂林航天工业学院 | A kind of engineering geo-drilling equipment running gear |
| CN110219591B (en) * | 2019-07-25 | 2024-04-26 | 桂林航天工业学院 | Engineering drilling equipment running gear |
| CN114183580A (en) * | 2021-10-28 | 2022-03-15 | 武汉船用机械有限责任公司 | Hydraulic control system of arc-shaped door of concrete bucket |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20140529 |