CN204312429U - A kind of hydraulic differential circuit system be made up of screw-in cartridge valve - Google Patents
A kind of hydraulic differential circuit system be made up of screw-in cartridge valve Download PDFInfo
- Publication number
- CN204312429U CN204312429U CN201420716049.2U CN201420716049U CN204312429U CN 204312429 U CN204312429 U CN 204312429U CN 201420716049 U CN201420716049 U CN 201420716049U CN 204312429 U CN204312429 U CN 204312429U
- Authority
- CN
- China
- Prior art keywords
- valve
- cartridge
- plug
- mouth
- controlled check
- 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.)
- Expired - Fee Related
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a kind of hydraulic differential circuit system be made up of screw-in cartridge valve, comprise system filler opening, system oil return mouth, the first system oil outlet, second system oil outlet, cartridge throttle valve, insert type change-over valve, cartridge balanced valve, first plug-in type pilot controlled check valve, second plug-in type pilot controlled check valve and oil hydraulic cylinder, in this hydraulic differential circuit system, each valve assembly adopts screw-in cartridge valve composition, can effectively avoid leaking of hydraulic oil, and screw-in cartridge valve also to have integrated volume little, low noise, plug-in mounting is convenient, interchangeability is strong, be convenient to the features such as installation, as long as the commutation controlling insert type change-over valve just can the quick advance of hydraulic control cylinder, high pressure advances, return fast and stop action, easy to operate.
Description
Technical field
The utility model relates to hydraulic control system technical field, particularly the hydraulic differential circuit system that forms of a kind of screw-in cartridge valve.
Background technique
Hydraulic differential control loop is widely used a kind of flow control circuit in Hydraulic Power Transmission System, its essence is that the hydraulic oil that hydraulic cylinder piston rod chamber is discharged is back in the piston cavity of oil hydraulic cylinder, thus increase the flow entering piston cavity, the corresponding speed also increasing piston and stretch out, meet high thrust flexibly, the working stroke requirement of little speed and low thrust, greatly speed.But traditional differential circuit is all made up of common hydrovalve, there is the shortcoming of hydraulic fluid leak, not only lower efficiency also befouling environment, and time integrated, volume is also comparatively large, there is inconvenience greatly there being the place of strict demand to installation dimension.
Model utility content
Technical problem to be solved in the utility model is to provide the hydraulic differential circuit system that a kind of integrated volume is little, easy for installation, avoid hydraulic oil to leak.
For solving the problems of the technologies described above adopted technological scheme: a kind of hydraulic differential circuit system be made up of screw-in cartridge valve, comprise system filler opening, system oil return mouth, the first system oil outlet, second system oil outlet, cartridge throttle valve, insert type change-over valve, cartridge balanced valve, first plug-in type pilot controlled check valve, second plug-in type pilot controlled check valve and oil hydraulic cylinder, described system filler opening connects with the import of cartridge throttle valve, the outlet of described cartridge throttle valve connects with the P mouth of insert type change-over valve, described system oil return mouth connects with the t mouth of insert type change-over valve, the A mouth of described insert type change-over valve respectively with the import of the first plug-in type pilot controlled check valve, the outlet of the second plug-in type pilot controlled check valve connects, the outlet of described first plug-in type pilot controlled check valve is connected to the first system oil outlet, the import of described second plug-in type pilot controlled check valve is connected to second system oil outlet, the B mouth of described insert type change-over valve is connected with second system oil outlet by cartridge balanced valve, described first plug-in type pilot controlled check valve collects mutually with the control mouth of the second plug-in type pilot controlled check valve and is connected to the B mouth of insert type change-over valve, the control mouth of described cartridge balanced valve is connected to the A mouth of insert type change-over valve.
Further, described the first system oil outlet is connected with the rodless cavity of oil hydraulic cylinder by high pressure hose, and described second system oil outlet is connected by the rod end chamber of high pressure hose oil hydraulic cylinder.
Beneficial effect: in this hydraulic differential circuit system, each valve assembly adopts screw-in cartridge valve composition, can effectively avoid leaking of hydraulic oil, and screw-in cartridge valve also has, and integrated volume is little, low noise, plug-in mounting convenient, interchangeability is strong, be convenient to the features such as installation, as long as the commutation controlling insert type change-over valve just can hydraulic control cylinder quick advance, high pressure advance, return and stop action fast, easy to operate.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further;
Fig. 1 is the systematic schematic diagram of the utility model embodiment.
Embodiment
With reference to Fig. 1, a kind of hydraulic differential circuit system be made up of screw-in cartridge valve of the utility model, comprise system oil inlet P, system oil return mouth T, the first system oil outlet A1, second system oil outlet A2, cartridge throttle valve 1, insert type change-over valve 2, cartridge balanced valve 3, first plug-in type pilot controlled check valve 4, second plug-in type pilot controlled check valve 5 and oil hydraulic cylinder 6, system oil inlet P connects with the import of cartridge throttle valve 1, the outlet of cartridge throttle valve 1 connects with the P mouth of insert type change-over valve 2, system oil return mouth T connects with the t mouth of insert type change-over valve 2, the A mouth of insert type change-over valve 2 respectively with the import of the first plug-in type pilot controlled check valve 4, the outlet of the second plug-in type pilot controlled check valve 5 connects, the outlet of the first plug-in type pilot controlled check valve 4 is connected to the first system oil outlet A1, the import of the second plug-in type pilot controlled check valve 5 is connected to second system oil outlet B1, the B mouth of insert type change-over valve 2 is connected with second system oil outlet B1 by cartridge balanced valve 3, first plug-in type pilot controlled check valve 4 collects mutually with the control mouth of the second plug-in type pilot controlled check valve 5 and is connected to the B mouth of insert type change-over valve 2, the control mouth of cartridge balanced valve 3 is connected to the A mouth of insert type change-over valve 2.
Wherein, in the present embodiment, at system oil inlet P place, also there is filler opening pressure-measuring point MP, the first system oil outlet A1 is connected by the rodless cavity of high pressure hose 7 with oil hydraulic cylinder 6, second system oil outlet B1 is connected by the rod end chamber of high pressure hose 7 with oil hydraulic cylinder 6, also has fuel-displaced pressure tap MA1 and fuel-displaced pressure tap MB1 at the first system oil outlet A1 and second system oil outlet B1 place.
The working procedure of the utility model hydraulic differential circuit system is as follows: when the electromagnet DT1 of insert type change-over valve 2 obtains electric, system high pressure oil is successively through system oil inlet P, cartridge throttle valve 1, insert type change-over valve 2, first plug-in type pilot controlled check valve 4, high pressure hose 7 enters the rodless cavity of oil hydraulic cylinder 6, the piston rod promoting oil hydraulic cylinder 6 advances, simultaneity factor high pressure oil acts on the control mouth of cartridge balanced valve 3, thus make the fluid of the rod end chamber of oil hydraulic cylinder 6 successively through high pressure hose 7, second plug-in type pilot controlled check valve 5, first plug-in type pilot controlled check valve 4, high pressure hose 7 enters the rodless cavity of oil hydraulic cylinder 6 again, realize advancing fast, when the pressure acting on cartridge balanced valve 3 is greater than the pilot pressure of cartridge balanced valve 3 setting, cartridge balanced valve 3 is opened, and realizes high pressure and advances, when the electromagnet 2DT of insert type change-over valve 2 obtains electric, system high pressure oil is successively through system oil inlet P, cartridge throttle valve 1, cartridge balanced valve 3, high pressure hose 7 enters the rod end chamber of oil hydraulic cylinder 6, pressure oil acts on the control mouth of the first plug-in type pilot controlled check valve 4 and the second plug-in type pilot controlled check valve 5 simultaneously, first plug-in type pilot controlled check valve 4 is opened, second plug-in type pilot controlled check valve 5 is closed, the fluid of the rodless cavity of oil hydraulic cylinder 12 is successively through the first plug-in type pilot controlled check valve 4, insert type change-over valve 2, system oil return mouth T flows back to system, realize returning fast, when insert type change-over valve 2 must not electricity time, oil hydraulic cylinder keep original position be failure to actuate.
By reference to the accompanying drawings mode of execution of the present utility model is explained in detail above, but the utility model is not limited to above-mentioned mode of execution, in the ken that described technical field those of ordinary skill possesses, various change can also be made under the prerequisite not departing from the utility model aim.
Claims (2)
1. the hydraulic differential circuit system be made up of screw-in cartridge valve, it is characterized in that: comprise system filler opening, system oil return mouth, the first system oil outlet, second system oil outlet, cartridge throttle valve, insert type change-over valve, cartridge balanced valve, first plug-in type pilot controlled check valve, second plug-in type pilot controlled check valve and oil hydraulic cylinder, described system filler opening connects with the import of cartridge throttle valve, the outlet of described cartridge throttle valve connects with the P mouth of insert type change-over valve, described system oil return mouth connects with the t mouth of insert type change-over valve, the A mouth of described insert type change-over valve respectively with the import of the first plug-in type pilot controlled check valve, the outlet of the second plug-in type pilot controlled check valve connects, the outlet of described first plug-in type pilot controlled check valve is connected to the first system oil outlet, the import of described second plug-in type pilot controlled check valve is connected to second system oil outlet, the B mouth of described insert type change-over valve is connected with second system oil outlet by cartridge balanced valve, described first plug-in type pilot controlled check valve collects mutually with the control mouth of the second plug-in type pilot controlled check valve and is connected to the B mouth of insert type change-over valve, the control mouth of described cartridge balanced valve is connected to the A mouth of insert type change-over valve.
2. the hydraulic differential circuit system be made up of screw-in cartridge valve according to claim 1, it is characterized in that: described the first system oil outlet is connected with the rodless cavity of oil hydraulic cylinder by high pressure hose, described second system oil outlet is connected by the rod end chamber of high pressure hose oil hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716049.2U CN204312429U (en) | 2014-11-24 | 2014-11-24 | A kind of hydraulic differential circuit system be made up of screw-in cartridge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716049.2U CN204312429U (en) | 2014-11-24 | 2014-11-24 | A kind of hydraulic differential circuit system be made up of screw-in cartridge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312429U true CN204312429U (en) | 2015-05-06 |
Family
ID=53134747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420716049.2U Expired - Fee Related CN204312429U (en) | 2014-11-24 | 2014-11-24 | A kind of hydraulic differential circuit system be made up of screw-in cartridge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312429U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057525A (en) * | 2015-07-15 | 2015-11-18 | 天津市天锻压力机有限公司 | Hydraulic system for controlling die forging heavy-load workbench |
| CN109202170A (en) * | 2018-11-15 | 2019-01-15 | 长沙思胜智能设备有限公司 | The main hydraulic system and broaching machine of broaching 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 |
| CN111188572A (en) * | 2019-12-30 | 2020-05-22 | 恒天九五重工有限公司 | Automatic rapid pressurization control method for rotary drilling rig |
| CN111396390A (en) * | 2020-04-29 | 2020-07-10 | 徐州徐工随车起重机有限公司 | Balance valve group suitable for stability control of overhead working truck |
| CN114278624A (en) * | 2021-12-10 | 2022-04-05 | 南京理工大学 | Closed pump control system of erecting fast |
-
2014
- 2014-11-24 CN CN201420716049.2U patent/CN204312429U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057525A (en) * | 2015-07-15 | 2015-11-18 | 天津市天锻压力机有限公司 | Hydraulic system for controlling die forging heavy-load workbench |
| CN109202170A (en) * | 2018-11-15 | 2019-01-15 | 长沙思胜智能设备有限公司 | The main hydraulic system and broaching machine of broaching 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 |
| CN111188572A (en) * | 2019-12-30 | 2020-05-22 | 恒天九五重工有限公司 | Automatic rapid pressurization control method for rotary drilling rig |
| CN111188572B (en) * | 2019-12-30 | 2021-07-02 | 恒天九五重工有限公司 | Automatic rapid pressurization control method for rotary drilling rig |
| CN111396390A (en) * | 2020-04-29 | 2020-07-10 | 徐州徐工随车起重机有限公司 | Balance valve group suitable for stability control of overhead working truck |
| CN111396390B (en) * | 2020-04-29 | 2021-05-18 | 徐州徐工随车起重机有限公司 | Balance valve group suitable for stability control of overhead working truck |
| CN114278624A (en) * | 2021-12-10 | 2022-04-05 | 南京理工大学 | Closed pump control system of erecting fast |
| CN114278624B (en) * | 2021-12-10 | 2024-05-03 | 南京理工大学 | Closed pump control quick erection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204312429U (en) | A kind of hydraulic differential circuit system be made up of screw-in cartridge valve | |
| CN104196800B (en) | The combination brake switch and proporting that a kind of import and export oil circuit with load-sensitive function independently controls | |
| CN203348203U (en) | Speed-regulating hydraulic control valve group of large-flow two-way cartridge valve | |
| CN203743127U (en) | Hydraulic system for engineering oil cylinder durability test | |
| CN204344557U (en) | A kind of ultrahigh pressure pilot operated compound relief valve | |
| CN203548390U (en) | Hydraulic pumping system and concrete pumping equipment | |
| CN108738331B (en) | Hydraulic device lifts fast | |
| CN201776935U (en) | Hydraulic machine with two sets of hydraulic system structures | |
| CN203770266U (en) | Hydraulic pumping system and concrete pumping equipment | |
| CN203384136U (en) | Speed exchange circuit with parallel speed control valves | |
| CN204082762U (en) | The automatic reciprocating oil hydraulic cylinder of a kind of integrated form | |
| CN208619430U (en) | Large-flow hydraulic system differential circuit | |
| CN102003432B (en) | Electro-hydraulic actuator | |
| CN203784005U (en) | Oil inlet valve block and compound flow control multi-way valve | |
| CN203879823U (en) | Hydraulic control loop used for adjusting unloading speed | |
| CN202946477U (en) | Hydraulic oil cylinder and engineering machinery with the same | |
| CN201760386U (en) | Automatic glue amount control system for automatic hollow glass glue sealing line | |
| CN203685726U (en) | Extra-large flow electrical proportional speed regulation control system | |
| CN104030199A (en) | Forklift hydraulic system with bypass oil way throttling speed regulation loop | |
| CN204284266U (en) | A kind of railway locomotive uses hydraulic braking control device | |
| CN203926176U (en) | Integrated hydraulic hoists | |
| CN204458574U (en) | A kind of punch press plug-in unit controls the hydraulic control system of two oil cylinders | |
| CN203362682U (en) | Differential oil supplementing hydraulic control device of electro-hydraulic proportional cartridge valve | |
| CN204041340U (en) | Large-scale pumped storage power unit Double-working-condition subsection and closed device | |
| CN204459332U (en) | A kind of Pilot operated safety valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20171124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |