CN103557208A - Multi-level adjustable hydraulic oil cylinder - Google Patents
Multi-level adjustable hydraulic oil cylinder Download PDFInfo
- Publication number
- CN103557208A CN103557208A CN201310545300.3A CN201310545300A CN103557208A CN 103557208 A CN103557208 A CN 103557208A CN 201310545300 A CN201310545300 A CN 201310545300A CN 103557208 A CN103557208 A CN 103557208A
- Authority
- CN
- China
- Prior art keywords
- oil
- pressure
- road
- oil circuit
- solenoid directional
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to the design of a hydraulic oil cylinder, in particular to a hydraulic oil cylinder with multi-level pressurizing force. The invention aims to provide a multi-level adjustable oil pressure mechanism to meet the multiple-level different or adjustable pressure demands in the same hydraulic mechanism in engineering. In the design scheme, dual pumps are adopted for oil pressurizing, alternative or cooperative use between the two pumps can be realized, and one path is mainly used for supplying oil for a pressure adjusting part, so the pressure adjusting part independently uses the oil and is stable in work without the limitation of a main oil path; a scheme that the main oil path and the pressure adjusting part are connected in parallel is adopted, so the full smoothness of the oil path is ensured; a pressurizing adjusting part is only used for pumping oil to a push end, and as the other end has no pressure demand, oil does not need to pass the pressure adjusting part.
Description
Technical field
The present invention relates to the design of a hydraulic jack, what specially refer to is a kind of with multistage stressed hydraulic jack.
Background technique
Hydraulic jack is suitable general the mechanically use of today, a lot of in particular cases all will using; Oil hydraulic cylinder by hydraulic energy change mechanical energy into, the do straight reciprocating motion hydraulic actuator of (or oscillating motion).Its simple in structure, reliable operation.While realizing to-and-fro motion with it, can remove speed reducer from, and there is no drive gap, motion steadily, is therefore used widely in the hydraulic system of various machineries.The pressure reduction on oil hydraulic cylinder ouput force and piston effective area and both sides thereof is directly proportional; Oil hydraulic cylinder is comprised of cylinder barrel and cylinder cap, piston and piston rod, seal arrangement, damping device and venting gas appliance substantially.Damping device and venting gas appliance are depending on concrete application, and other devices are essential.
Summary of the invention
The object of the present invention is to provide a kind of multistage adjustable oil sector, meet in engineering, for the multistage different pressure of same Ye Tai mechanism's needs, or multistage adjustable pressure demand.
For completing foregoing invention object, the present invention has designed like this: a kind of Multi-stage adjustable hydraulic jack, it is by fuel feeding part, power section, flows to control section and do-part, between above-mentioned part, by oil pipe, connects, and described do-part is to take blame for others; It is characterized in that: described power part is by two oil pumps of portion's driven by motor, to form two-way oil circuit to form; One working connection ，Yi road, road Pressure Increasing Oil-Line; The described control section that flows to comprises two solenoid directional control valves; At two solenoid directional control valves, to being provided with pressure regulating part between do-part, divide; Described two-way oil circuit is connected with corresponding solenoid directional control valve respectively; Pressure Increasing Oil-Line by solenoid directional control valve out after wherein a road and pressure regulating part divide series winding, after pressure adjusts pressure regulating part to divide, be connected to the propelling filler opening of do-part; By solenoid directional control valve, another Lu Zaijing mono-selector valve after is out connected with the indentation filler opening of do-part Pressure Increasing Oil-Line, or is connected with pressure guard; Described working connection through solenoid directional control valve out Hou Yi road and pressure regulating part divide in parallelly, be finally connected to by the road the propelling filler opening of do-part; Another road is connected with the indentation filler opening of do-part.
Present design adopts double pump to carry out oil pressure, can realize between two pumps and have mutual use or cooperation to use, and wherein a road binders is mainly used for dividing fuel feeding to pressure regulating part, allows pressure regulating part divide independently and uses oily working stability, is not subject to the restriction of working connection; Adopt working connection to divide scheme in parallel with pressure regulating part, guaranteed the fully unimpeded of oil circuit; Boost pressure regulation part is only for advancing end to carry out oiling, at the other end owing to needing without pressure, therefore, without regulating part through overvoltage business.
Technique scheme is made to further refinement, and it is to regulate oil circuit to compose in parallel by least three tunnels that described pressure regulating part divides, and wherein multichannel consists of a solenoid directional control valve and a Speed governing with micro-adjustment valve respectively above; Last road is by an independent Speed governing with micro-adjustment valve, between every branch road, is provided with one-way valve.Adopting multi-channel parallel mode, is mainly the control that is beneficial to oil circuit, is provided with each other one-way cock and prevents from flowing backwards, and every branch road all has selector valve, as oil circuit real work regulator whether; In addition, the branch road is also provided with Speed governing with micro-adjustment valve, the pressure of setting every branch road with this, and the pressure that reaches every branch road is all not identical; This combination just can produce the adjusting pressure that is greater than branch road sum.
Technique scheme is carried out further perfect, before oil circuit enters indentation filler opening, be also connected to two straight moving relief valves and shock-proof pressure gauges.
At main oil, be connected to before first is electromagnetic switch magnetic, be connected in addition a upper protection oil circuit; Described upper protection oil circuit is to connect a pipe kind through working connection, through selector valve and a series of auxiliary oil way, finally takes back fuel tank.Be connected to before first is electromagnetic switch magnetic increasing oil circuit, through a selector valve ，Yi road, be connected to upper protection oil circuit; Described upper protection oil circuit is to connect a pipe kind through working connection, through selector valve and a series of auxiliary oil way, finally takes back fuel tank, and the implementation of port of carrying out oil cylinder is received on another road.
Such scheme is in order to guarantee, Security and be the auxiliary oil way that pressure-regulating portion arranges, thereby punching spares, his pressure regulation some work is more stable, safer.
This patent adopts pressure-regulating device, realizes and allowing to same oil sector, produces multiple pressure business, realizes multistage variation, and pressure is adjustable, quite practical in realizing work.
Accompanying drawing explanation
Fig. 1 is connection diagram of the present invention.
Embodiment
As shown in the figure, a kind of Multi-stage adjustable hydraulic jack, it is by fuel feeding part, power section, flows to control section and do-part, between above-mentioned part, by oil pipe, connects, and described do-part is to take blame for others; Described power part is by portion's motor 11, to drive two oil pumps 21,22 to form two-way oil circuit to form; One road working connection 2 ，Yi road Pressure Increasing Oil-Line 1; The described control section that flows to comprises two solenoid directional control valves 22,13; At two solenoid directional control valves, to being provided with pressure regulating part between do-part 4, divide 3; Described two-way oil circuit 1,2 connects with corresponding solenoid directional control valve 22,13 respectively; Pressure Increasing Oil-Line 1 by solenoid directional control valve 13 out after wherein a road and pressure regulating part divide series winding, after pressure adjusts pressure regulating part to divide, be connected to the propelling filler opening of do-part; By solenoid directional control valve 13, another Lu Zaijing mono-selector valve after is out connected with the indentation filler opening of do-part Pressure Increasing Oil-Line 1, or is connected with pressure guard 4; Described working connection 1 through solenoid directional control valve out Hou Yi road and pressure regulating part divide 3 in parallelly, be finally connected to by the road the propelling filler opening of do-part; Another road is connected with the indentation filler opening of do-part.Described pressure regulating part divides 3 to be to regulate oil circuit to compose in parallel by least three tunnels, and the present embodiment is that wherein multichannel consists of a solenoid directional control valve 31,33 and a Speed governing with micro-adjustment valve 32,34 respectively above; Last road is by an independent Speed governing with micro-adjustment valve 35, between every branch road, is provided with one-way valve.Before oil circuit enters indentation filler opening, be also connected to two straight moving relief valves and a shock-proof pressure gauge.At main oil, be connected to before first is electromagnetic switch magnetic, be connected in addition a upper protection oil circuit 6; Described upper protection oil circuit 6 is to connect a pipeline through working connection 2, through selector valve and a series of auxiliary oil way 61, finally takes back fuel tank.Be connected to before first is electromagnetic switch magnetic increasing oil circuit, through a selector valve ，Yi road, be connected to upper protection oil circuit; Described upper protection oil circuit is to connect a pipe kind through working connection, through selector valve and a series of auxiliary oil way, finally takes back fuel tank, and the implementation of port of carrying out oil cylinder is received on another road.
When work; several stage pressures as required; carry out your unlatching accordingly, for example at work, first at leading portion half way; we need a pressure; here work can not carried out in our pressure regulation working area, and at intermediate section, we can open successively corresponding valve and carry out pressure adjusting, and the path of opening pressure regulation district is more; final pressure is also just larger, thereby has added overvoltage protection and a series of complementary pressure business element to reach stable work simultaneously.
Claims (5)
1. a Multi-stage adjustable hydraulic jack, it is by fuel feeding part, power section, flows to control section and do-part, between above-mentioned part, by oil pipe, connects, and described do-part is to take blame for others; It is characterized in that: described power part is by two oil pumps of portion's driven by motor, to form two-way oil circuit to form; One working connection ，Yi road, road Pressure Increasing Oil-Line; The described control section that flows to comprises two solenoid directional control valves; At two solenoid directional control valves, to being provided with pressure regulating part between do-part, divide; Described two-way oil circuit is connected with corresponding solenoid directional control valve respectively; Pressure Increasing Oil-Line by solenoid directional control valve out after wherein a road and pressure regulating part divide series winding, after pressure adjusts pressure regulating part to divide, be connected to the propelling filler opening of do-part; By solenoid directional control valve, another Lu Zaijing mono-selector valve after is out connected with the indentation filler opening of do-part Pressure Increasing Oil-Line, or is connected with pressure guard; Described working connection through solenoid directional control valve out Hou Yi road and pressure regulating part divide in parallelly, be finally connected to by the road the propelling filler opening of do-part; Another road is connected with the indentation filler opening of do-part.
2. a kind of Multi-stage adjustable hydraulic jack according to claim 1, is characterized in that: it is to regulate oil circuit to compose in parallel by least three tunnels that described pressure regulating part divides, and wherein multichannel consists of a solenoid directional control valve and a Speed governing with micro-adjustment valve respectively above; Last road is by an independent Speed governing with micro-adjustment valve, between every branch road, is provided with one-way valve.
3. a kind of Multi-stage adjustable hydraulic jack according to claim 1, is characterized in that: before oil circuit enters indentation filler opening, be also connected to two straight moving relief valves and a shock-proof pressure gauge.
4. a kind of Multi-stage adjustable hydraulic jack according to claim 1, is characterized in that: at main oil, be connected to before first is electromagnetic switch magnetic, be connected in addition a upper protection oil circuit; Described upper protection oil circuit is to connect a pipe kind through working connection, through selector valve and a series of auxiliary oil way, finally takes back fuel tank.
5. a kind of Multi-stage adjustable hydraulic jack according to claim 1, is characterized in that: be connected to before first is electromagnetic switch magnetic increasing oil circuit, through a selector valve ，Yi road, be connected to upper protection oil circuit; Described upper protection oil circuit is to connect a pipe kind through working connection, through selector valve and a series of auxiliary oil way, finally takes back fuel tank, and the implementation of port of carrying out oil cylinder is received on another road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310545300.3A CN103557208B (en) | 2013-11-07 | 2013-11-07 | Multi-level adjustable hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310545300.3A CN103557208B (en) | 2013-11-07 | 2013-11-07 | Multi-level adjustable hydraulic oil cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103557208A true CN103557208A (en) | 2014-02-05 |
| CN103557208B CN103557208B (en) | 2016-06-01 |
Family
ID=50011535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310545300.3A Expired - Fee Related CN103557208B (en) | 2013-11-07 | 2013-11-07 | Multi-level adjustable hydraulic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103557208B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017219337A1 (en) * | 2016-06-24 | 2017-12-28 | 邵正国 | Hydraulic system for hydraulic machine for forging and pressing elastic material |
| CN110410374A (en) * | 2019-08-16 | 2019-11-05 | 中铁工程装备集团有限公司 | A kind of Thrust System of Shield Tunneling Machines supercharging device and its working method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4024798A (en) * | 1975-05-01 | 1977-05-24 | Caterpillar Tractor Co. | Control valve providing two speed operation for a motor |
| JPS5284377A (en) * | 1975-12-30 | 1977-07-13 | Daikin Ind Ltd | Coaxial boost cylinder oil pressure circuit |
| DE3219730A1 (en) * | 1982-05-26 | 1983-12-01 | Robert Bosch Gmbh, 7000 Stuttgart | Arrangement for controlling a hydraulic servomotor |
| JPS5934002A (en) * | 1982-08-21 | 1984-02-24 | Hitachi Constr Mach Co Ltd | Hydraulic closed circuit device |
| CN87102639A (en) * | 1986-06-11 | 1987-12-23 | 株式会社岛津制作所 | Hydraulic system |
| CN203614516U (en) * | 2013-11-07 | 2014-05-28 | 南通皋液液压机有限公司 | Multi-stage adjustable type hydraulic cylinder |
-
2013
- 2013-11-07 CN CN201310545300.3A patent/CN103557208B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4024798A (en) * | 1975-05-01 | 1977-05-24 | Caterpillar Tractor Co. | Control valve providing two speed operation for a motor |
| JPS5284377A (en) * | 1975-12-30 | 1977-07-13 | Daikin Ind Ltd | Coaxial boost cylinder oil pressure circuit |
| DE3219730A1 (en) * | 1982-05-26 | 1983-12-01 | Robert Bosch Gmbh, 7000 Stuttgart | Arrangement for controlling a hydraulic servomotor |
| JPS5934002A (en) * | 1982-08-21 | 1984-02-24 | Hitachi Constr Mach Co Ltd | Hydraulic closed circuit device |
| CN87102639A (en) * | 1986-06-11 | 1987-12-23 | 株式会社岛津制作所 | Hydraulic system |
| CN203614516U (en) * | 2013-11-07 | 2014-05-28 | 南通皋液液压机有限公司 | Multi-stage adjustable type hydraulic cylinder |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017219337A1 (en) * | 2016-06-24 | 2017-12-28 | 邵正国 | Hydraulic system for hydraulic machine for forging and pressing elastic material |
| CN110410374A (en) * | 2019-08-16 | 2019-11-05 | 中铁工程装备集团有限公司 | A kind of Thrust System of Shield Tunneling Machines supercharging device and its working method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103557208B (en) | 2016-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102587443A (en) | Multiway valve hydraulic control system of crawler excavator | |
| CN103085865A (en) | Load sensitive turning hydraulic system of loading machine | |
| CN203614516U (en) | Multi-stage adjustable type hydraulic cylinder | |
| CN203297181U (en) | load sensing system | |
| CN102734241B (en) | Opened and closed hydraulic system and engineering machinery | |
| CN204344557U (en) | A kind of ultrahigh pressure pilot operated compound relief valve | |
| CN203548390U (en) | Hydraulic pumping system and concrete pumping equipment | |
| CN103557208A (en) | Multi-level adjustable hydraulic oil cylinder | |
| CN104828702A (en) | Crane, reversing control system, and oil supply apparatus thereof | |
| CN202290751U (en) | Control system of vertical roller balance hydraulic cylinder | |
| CN104234993B (en) | Hydraulic planger pump output control device and control method | |
| CN104061198A (en) | Double-pump oil supply fast-control system | |
| CN205014009U (en) | Two step change discharge capacity oil pump of machinery valve accuse | |
| CN208442095U (en) | LEP electricity proportional load sensitive pump and hydraulic system | |
| CN204646822U (en) | A kind of hydraulic control system for loader | |
| CN201155420Y (en) | Hydroturbine emergency stop device based on cartridge valve | |
| CN108679006B (en) | Single-action reciprocating hydraulic supercharger | |
| CN104196829A (en) | High-pressure high-flow sealing part test system | |
| CN203081878U (en) | Hydraulic control system and engineering machinery | |
| CN210265310U (en) | Multi-pump confluence hydraulic station device | |
| CN103277276A (en) | Ultrahigh pressure multistage radial plunger pump | |
| CN204113810U (en) | A kind of high-pressure high-flow Sealing test system | |
| CN103994112A (en) | Integrated load-sensitive multi-way valve | |
| CN204284266U (en) | A kind of railway locomotive uses hydraulic braking control device | |
| CN103557202B (en) | The meta off-load damping loop of large discharge electro-hydraulic reversing valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Bai Pu town Rugao City, Jiangsu province 226500 Nantong Tongyang Road No. 111 Patentee after: NANTONG GAOYE HEAVY INDUSTRY CO.,LTD. Address before: 226511 a group of Qianjin village, Bai Pu town, Nantong, Jiangsu, Rugao Patentee before: NANTONG GAOYE HYDRAULIC PRESS MACHINE Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20211107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |