CN102878143A - Self-cleaning oil recharging lockup valve of combination type hydraulic cylinder - Google Patents
Self-cleaning oil recharging lockup valve of combination type hydraulic cylinder Download PDFInfo
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- CN102878143A CN102878143A CN2012104164834A CN201210416483A CN102878143A CN 102878143 A CN102878143 A CN 102878143A CN 2012104164834 A CN2012104164834 A CN 2012104164834A CN 201210416483 A CN201210416483 A CN 201210416483A CN 102878143 A CN102878143 A CN 102878143A
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Abstract
A self-cleaning oil recharging lockup valve of a combination type hydraulic cylinder is characterized by comprising a valve body with an oil inlet V1, an oil outlet C1, an oil inlet V2 and an oil outlet C2, and a first check valve component, a second check valve component, a first hydraulic control check valve and a second hydraulic control check valve which are arranged in the valve body; and the oil inlet V1 of the valve body is communicated with an axial port in a valve body of the first check valve component and an oil passage in the valve body, the working oil outlet C1 in the valve body is communicated with a radial oil port in the valve body of the first check valve component and an axial oil port in the valve body of the first hydraulic control check valve, the oil inlet V2 of the valve body is communicated with the axial port in the valve body of the second check valve component and the oil passage in the valve body, the working oil outlet C2 in the valve body is communicated with the radial oil port in the valve body of the first check valve component and the radial oil port in the valve body of the first hydraulic control check valve, the oil passage in the valve body is communicated with a hydraulic port of the second hydraulic control check valve, the oil passage in the valve body is communicated with the hydraulic port of the first hydraulic control check valve, and an oil return port T in the valve body is communicated with the radial oil port in the valve body of the first hydraulic control check valve and the radial oil port in the valve body of the second hydraulic control check valve.
Description
Technical field
The present invention relates to engineering machinery, technical field of hydraulic, especially a kind of Combined press oil cylinder automatically cleaning repairing lock valve that has from blowdown, exhaust, repairing function.
Background technique
Along with engineering machinery, mining machinery develop to maximization, high-power, hydraulicdriven application is also more and more extensive, hydraulic jack is essential as hydraulicdriven executive component, hydraulicdriven loop also increases thereupon, the air that oil hydraulic circuit, hydraulic jack inside thereupon occur is difficult to get rid of, cause hydraulic jack to occur stretching and creep the faults such as element cavitation erosion.Especially the product after the newly assembled or long-time shutdown, the air that pipeline produces will rest in the oil hydraulic circuit for a long time, causes the system failure.
A lot of occasions exist hydraulic jack to work under heavy load, high-speed working condition because the flow system flow undersupply causes hydraulic jack one chamber negative pressure to occur, inhale the problems such as empty so that occur creeping, the danger such as cavitation erosion.
In addition, the environment of part engineering machinery, mining machinery work is abominable, and the small particles such as dust can be attached on the piston rod, along with stretching of piston rod, enter hydraulic jack inside, oil hydraulic circuit, cause hydrovalve to lock, and accelerate problem or the faults such as oil hydraulic pump and motor wear.
Summary of the invention
Purpose of the present invention provides the Combined press oil cylinder automatically cleaning repairing lock valve that has from blowdown, exhaust, repairing function for existing deficiency in the above-mentioned prior art just.Lock valve of the present invention can be when realizing the locking hydraulic jack, guarantee that air, pollutant in hydraulic jack or the oil hydraulic circuit discharge fast, have the timely repairing function of hydraulic jack concurrently, improve stability, the reliable of hydraulic system, improve the working life of hydraulic element.
Purpose of the present invention can realize by following technique measures:
Combined press oil cylinder automatically cleaning repairing lock valve of the present invention comprises the valve body that is provided with filler opening V1, oil outlet C1, filler opening V2 and oil outlet C2, is arranged on first and second check valve assembly and first and second fluid-control one-way valve assembly in the valve body; Oil duct in the filler opening V1 of described valve body and the first check valve assembly valve body axial port and the valve body communicates, the actuator port C1 of valve body and the first check valve assembly valve body radially hydraulic fluid port and the axial hydraulic fluid port of the first fluid-control one-way valve assembly valve body communicate, oil duct in the filler opening V2 of valve body and the second check valve assembly valve body axial port and the valve body communicates, the actuator port C2 of valve body and the first check valve assembly valve body radially hydraulic fluid port and the axial hydraulic fluid port of the first fluid-control one-way valve assembly valve body communicate, oil duct in the valve body communicates with the second fluid-control one-way valve assembly hydraulic control mouth, oil duct in the valve body communicates with the first fluid-control one-way valve assembly hydraulic control mouth, the oil return inlet T on the valve body and the first fluid-control one-way valve assembly valve body radially hydraulic fluid port and the second fluid-control one-way valve assembly valve body radially hydraulic fluid port communicate.
Structure and the performance of described first, second check valve assembly are identical, comprise valve seat, valve body, spool, spring, and seal groove and retaining thread are arranged on the valve seat, and with the sealing of valve body axial bore, press little by unlatching by spring for spool.
Structure and the performance of described first, second fluid-control one-way valve assembly are identical, comprise valve seat, spool, piston, interstage sleeve, spring, valve body, back-up ring, have the two seals groove on the valve seat, be threaded connection between valve seat and the valve body, spool blocks the valve body axial bore by spring and interstage sleeve.
Combined press oil cylinder automatically cleaning repairing lock valve of the present invention adopts plank frame, be directly installed on the oil cylinder, realize an oil-feed, separately oil extraction, simultaneously, can carry out repairing according to the hydraulic system needs, avoid inhaling sky, compact structure, easy to maintenance, check valve assembly and fluid-control one-way valve assembly all adopt spring reset and linear sealing, and good airproof performance, reaction is fast, contamination resistance is strong.
Beneficial effect of the present invention is as follows:
1, Combined press oil cylinder automatically cleaning repairing lock valve of the present invention adopts plank frame to install, be directly installed on the oil cylinder, and compact structure, installation and maintenance are convenient;
2, Combined press oil cylinder automatically cleaning repairing lock valve of the present invention can be realized an oil-feed, separately oil extraction, realize the single cycle of Hydraulic Main system, avoid air and pollutant in hydraulic jack and the pipeline to rest on for a long time oil hydraulic circuit, cause the system failure and element impaired;
3, Combined press oil cylinder automatically cleaning repairing lock valve of the present invention can carry out timely repairing to hydraulic jack according to system's needs, avoids system negative pressure or suction sky to occur, causes the faults such as hydraulic jack is creeped, cavitation erosion.
4, check valve assembly and the fluid-control one-way valve assembly in the Combined press oil cylinder automatically cleaning repairing lock valve of the present invention all adopts spring reset and linear sealing, and good airproof performance, reaction is fast, contamination resistance is strong.
Market prospects of the present invention:
At present, a lot of product (as: rig, multiple-drilling machine, twist bit, continuous wall grab, coal mine machinery, mining machinery etc. are dug in choosing) equipment radiuses are large, and load is large.Hydraulic jack on the equipment is far away apart from control unit (such as multi-way valve etc.), and oil hydraulic circuit is long, all has the phenomenons such as exhaust, blowdown difficulty, in time repairing.And some hydraulic cylinder piston rods pollute thing and enter hydraulic jack often by encirclements such as mud, dust, and enter system.
Lock valve of the present invention can well overcome the above problems.
Description of drawings
Figure l is plan view of the present invention.
Fig. 2 is the A-A sectional view of figure l.
Fig. 3 is the B-B sectional view of figure l.
Fig. 4 is the C-C sectional view of figure l.
Fig. 5 is schematic diagram of the present invention.
Serial number name is as follows among the figure: valve body l, filler opening V1, filler opening V2, working hole C1, working hole C2, oil return inlet T, the first fluid-control one-way valve assembly 2, the first fluid-control one-way valve assembly spool 2.1, the first Pilot operated check valve component sealing 2.2, the first fluid-control one-way valve assembly hydraulic control mouth 2.0, the first fluid-control one-way valve assembly piston 2.3, the first fluid-control one-way valve assembly interstage sleeve 2.4, the first fluid-control one-way valve assembly combination seal 2.5, the first fluid-control one-way valve assembly spring 2.6, the first fluid-control one-way valve assembly valve body 2.7, the first fluid-control one-way valve assembly combination seal 2.8, the first fluid-control one-way valve assembly back-up ring 2.9, the first check valve assembly 3, the first check valve assembly sealing 3.1, the first check valve assembly spring 3.2, the first check valve assembly spool 3.3, the first check valve assembly sealing 3.4, the first check valve assembly valve body 3.5, the second check valve assembly 4, the second check valve assembly sealing 4.1, the second check valve assembly spring 4.2, the second check valve assembly spool 4.3, the second check valve assembly sealing 4.4, the second check valve assembly valve body 4.5, the second fluid-control one-way valve assembly 5, the second fluid-control one-way valve assembly spool 5.1, the second Pilot operated check valve component sealing 5.2, the second fluid-control one-way valve assembly hydraulic control mouth 5.0, the second fluid-control one-way valve assembly piston 5.3, the second fluid-control one-way valve assembly interstage sleeve 5.4, the second fluid-control one-way valve assembly combination seal 5.5, the second fluid-control one-way valve assembly spring 5.6, the second fluid-control one-way valve assembly valve body 5.7, the second fluid-control one-way valve assembly combination seal 5.8, the second Pilot operated check valve back-up ring 5.9.
Embodiment
The present invention is described in further detail below with reference to embodiment's (accompanying drawing).
Shown in Fig. 1 to 5, Combined press oil cylinder automatically cleaning repairing lock valve of the present invention comprises the valve body 1 that is provided with filler opening V1, oil outlet C1, filler opening V2 and oil outlet C2, is arranged on first and second check valve assembly 3 in the valve body, 4 and first and second fluid-control one- way valve assembly 2,5; Oil duct in the filler opening V1 of described valve body and the first check valve assembly valve body 3.5 axial ports and the valve body communicates, the actuator port C1 of valve body and the first check valve assembly valve body 3.5 radially hydraulic fluid port and the first fluid-control one-way valve assembly valve body 2.7 axial hydraulic fluid ports communicate, oil duct in the filler opening V2 of valve body and the second check valve assembly valve body 4.5 axial ports and the valve body communicates, the actuator port C2 of valve body and the first check valve assembly valve body 4.5 radially hydraulic fluid port and the first fluid-control one-way valve assembly valve body 5.7 axial hydraulic fluid ports communicate, oil duct in the valve body communicates with the second fluid-control one-way valve assembly hydraulic control mouth 5.0, oil duct in the valve body communicates with the first fluid-control one-way valve assembly hydraulic control mouth 2.0, the oil return inlet T on the valve body and the first fluid-control one-way valve assembly valve body 2.7 radially hydraulic fluid port and the second fluid-control one-way valve assembly valve body 5.7 radially hydraulic fluid port communicate.
Working principle of the present invention is as follows:
As shown in Figure 2, during the filler opening V1 oil-feed of valve body 1, the first check valve assembly spool 3.3 upper axial end faces are subject to the pressure of hydraulic oil, and power passed to the first check valve assembly spring 3.2 that is connected with the first check valve assembly spool 3.3, the first check valve assembly spring 3.2 is stressed compressed, the first check valve assembly spool 3.3 moves down, the actuator port C1 of valve body 1 and the filler opening V1 of valve body 1 are communicated with, simultaneously, hydraulic oil enters the second fluid-control one-way valve assembly hydraulic control mouth 5.0 by the oil duct in the valve body 1, promoting the second fluid-control one-way valve assembly piston 5.3 moves right, the second fluid-control one-way valve assembly spool 5.1 that the second fluid-control one-way valve assembly piston 5.3 promotes to link to each other with it moves right together, and the actuator port C2 of valve body 1 and the second fluid-control one-way valve assembly valve body 5.7 radially hydraulic fluid port communicate with the oil return inlet T of valve body 1.Thereby realize that hydraulic oil enters from the filler opening V1 of valve body 1, flow out from the actuator port C1 of valve body 1, realize simultaneously the hydraulic oil that enters from the actuator port C2 of valve body 1, the oil return inlet T by valve body 1 flows out.
During valve body 1 filler opening V2 oil-feed, the second check valve assembly spool 4.3 upper axial end faces are subject to the pressure of hydraulic oil, and power passed to the second check valve assembly spring 4.2 that is connected with the second check valve assembly spool 4.3, the second check valve assembly spring 4.2 is stressed compressed, the second check valve assembly spool 4.3 moves down, the actuator port C2 of valve body 1 and valve body 1 filler opening V2 are communicated with, simultaneously, hydraulic oil enters the first fluid-control one-way valve assembly hydraulic control mouth 2.0 by the oil duct in the valve body 1, promoting the first fluid-control one-way valve assembly piston 2.3 moves right, the first fluid-control one-way valve assembly spool 2.1 that the first fluid-control one-way valve assembly piston 2.3 promotes to link to each other with it moves right together, and the actuator port C1 of valve body 1 and the first fluid-control one-way valve assembly valve body 2.7 radially hydraulic fluid port communicate with the oil return inlet T of valve body 1.Thereby realize that hydraulic oil enters from the filler opening V2 of valve body 1, flow out from the actuator port C2 of valve body 1, realize simultaneously the hydraulic oil that enters from the actuator port C1 of valve body 1, the oil return inlet T by valve body 1 flows out.
Claims (2)
1. Combined press oil cylinder automatically cleaning repairing lock valve, it is characterized in that: it comprises the valve body that is provided with filler opening V1, oil outlet C1, filler opening V2 and oil outlet C2, is arranged on first and second check valve assembly and first and second fluid-control one-way valve assembly in the valve body; Oil duct in the filler opening V1 of described valve body and the first check valve assembly valve body axial port and the valve body communicates, actuator port C1 on the valve body and the first check valve assembly valve body radially hydraulic fluid port and the axial hydraulic fluid port of the first fluid-control one-way valve assembly valve body communicate, oil duct in the filler opening V2 of valve body and the second check valve assembly valve body axial port and the valve body communicates, actuator port C2 on the valve body and the first check valve assembly valve body radially hydraulic fluid port and the axial hydraulic fluid port of the first fluid-control one-way valve assembly valve body communicate, oil duct in the valve body communicates with the second fluid-control one-way valve assembly hydraulic control mouth, oil duct in the valve body communicates with the first fluid-control one-way valve assembly hydraulic control mouth, the oil return inlet T of valve body and the first fluid-control one-way valve assembly valve body radially hydraulic fluid port and the second fluid-control one-way valve assembly valve body radially hydraulic fluid port communicate.
2. Combined press oil cylinder automatically cleaning repairing lock valve according to claim 1 is characterized in that: described lock valve adopts plank frame, is directly installed on the oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104164834A CN102878143A (en) | 2012-10-27 | 2012-10-27 | Self-cleaning oil recharging lockup valve of combination type hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104164834A CN102878143A (en) | 2012-10-27 | 2012-10-27 | Self-cleaning oil recharging lockup valve of combination type hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102878143A true CN102878143A (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104164834A Pending CN102878143A (en) | 2012-10-27 | 2012-10-27 | Self-cleaning oil recharging lockup valve of combination type hydraulic cylinder |
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| Country | Link |
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| CN (1) | CN102878143A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3044054A1 (en) * | 2015-11-20 | 2017-05-26 | Db Ind | AUTOMATIC RINSING DEVICE FOR DOUBLE EFFECT HYDRAULIC CYLINDERS |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050229594A1 (en) * | 2004-03-31 | 2005-10-20 | Kobelco Construction Machinery Co., Ltd. | Hydraulic control system and construction machine |
| CN201043542Y (en) * | 2007-04-24 | 2008-04-02 | 上海立新液压有限公司 | Hydraulic combined valve |
| CN201173125Y (en) * | 2008-04-03 | 2008-12-31 | 郑州恒达液压工程中心 | Linked bidirectional lock for cover type hydraulic support first and second level protecting boards |
| CN201568389U (en) * | 2009-11-20 | 2010-09-01 | 无锡亚中自动化设备有限公司 | Combined valve |
| CN102678646A (en) * | 2012-05-29 | 2012-09-19 | 特福隆集团有限公司 | Hydraulic combination valve |
-
2012
- 2012-10-27 CN CN2012104164834A patent/CN102878143A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050229594A1 (en) * | 2004-03-31 | 2005-10-20 | Kobelco Construction Machinery Co., Ltd. | Hydraulic control system and construction machine |
| CN201043542Y (en) * | 2007-04-24 | 2008-04-02 | 上海立新液压有限公司 | Hydraulic combined valve |
| CN201173125Y (en) * | 2008-04-03 | 2008-12-31 | 郑州恒达液压工程中心 | Linked bidirectional lock for cover type hydraulic support first and second level protecting boards |
| CN201568389U (en) * | 2009-11-20 | 2010-09-01 | 无锡亚中自动化设备有限公司 | Combined valve |
| CN102678646A (en) * | 2012-05-29 | 2012-09-19 | 特福隆集团有限公司 | Hydraulic combination valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3044054A1 (en) * | 2015-11-20 | 2017-05-26 | Db Ind | AUTOMATIC RINSING DEVICE FOR DOUBLE EFFECT HYDRAULIC CYLINDERS |
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| PB01 | Publication | ||
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| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130116 |