CN201448312U - Load sensing, pressure shut-off and standby control pump - Google Patents
Load sensing, pressure shut-off and standby control pump Download PDFInfo
- Publication number
- CN201448312U CN201448312U CN2009200465446U CN200920046544U CN201448312U CN 201448312 U CN201448312 U CN 201448312U CN 2009200465446 U CN2009200465446 U CN 2009200465446U CN 200920046544 U CN200920046544 U CN 200920046544U CN 201448312 U CN201448312 U CN 201448312U
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- CN
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- Prior art keywords
- valve
- oil
- pressure shut
- load
- load sensing
- 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
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000000295 complement effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a load sensing, pressure shut-off and standby control pump, which comprises a variable plunger pump communicated with an oil cylinder. An oil feeding opening of the variable plunger pump is connected with one end of the load sensing valve and one end of a pressure shut-off valve through an oil feeding pipe, oil chambers on other sides of the load sensing valve and the pressure shut-off valve are communicated with the oil feeding pipe through branched oil pipes, the load sensing valve is communicated with the oil chamber of the pressure shut-off valve, two chambers of a piston cylinder of the variable plunger pump are respectively connected with the oil feeding pipe and the pressure shut-off valve, the oil feeding pipe is equipped with an oil outlet, the load sensing valve and the pressure shut-off valve are communicated with an oil drain opening through an oil drain pipe, and the load sensing valve is connected with system pressure control and feedback signal interfaces. The load sensing, pressure shut-off and standby control pump is reasonable in structure, low in energy consumption and fine in work property.
Description
Technical field:
The utility model relates to a kind of plunger pump.
Background technique:
Existing plunger pump can not be realized load-sensing, the control of awaiting orders, and the work energy consumption is big, and service behaviour is undesirable.
Summary of the invention:
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, and energy consumption is little, the load-sensing of favorable working performance, pressure cut off, the control pump of awaiting orders.
Technical solution of the present utility model is:
A kind of load-sensing, pressure cut off, the control pump of awaiting orders, comprise the Variable plunger pump that communicates with oil cylinder, it is characterized in that: the oil supply port of Variable plunger pump is connected with an end of load-sensing valve and pressure shut-off valve by rail, the opposite side oil pocket of load-sensing valve, pressure shut-off valve communicates with rail by branch oil pipe, the load-sensing valve communicates with the oil pocket of pressure shut-off valve, the piston cylinder and two chambers of Variable plunger pump is connected with rail, pressure shut-off valve respectively, rail is provided with oil outlet, and load-sensing valve, pressure shut-off valve communicate with drain tap by drain mast; The load-sensing valve is connected with system pressure control and feedback signal interface.
The utility model is rational in infrastructure, can be operated in load-sensing, pressure cut off as required in a certain operating mode constantly, on the arbitrary characteristic between the control of awaiting orders; The priority of control is: the control of awaiting orders, pressure cut off, load-sensing; The X mouth is system pressure control and feedback signal interface, when connecting fuel tank, realizes awaiting orders control, when connecting load feedback pressure, realizes load-sensing control; X mouth receiving system by the load-sensing valve gets the pressure controling signal control that realizes awaiting orders, and when awaiting orders control, system is near zero pressure, zero delivery running, and is energy-conservation when making system unloaded; Realize load-sensing control by the X mouth receiving system pressure feedback signal of load-sensing valve, during load-sensing control, the output flow of pump and pressure are followed load request fully and are changed, and make pump be complementary no overflow power loss with the individual power of load at any time; By pressure shut-off valve, it is required to system to make system load reach the output flow that reduces pump after the setting pressure, least energy consumption when realizing working state.
Description of drawings:
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is an embodiment's of the utility model a configuration diagram.
Embodiment:
A kind of load-sensing, pressure cut off, the control pump of awaiting orders, comprise the Variable plunger pump 2 that communicates with oil cylinder 1, the oil supply port 3 of Variable plunger pump is connected with an end of load-sensing valve 5 and pressure shut-off valve 6 by rail 4, load-sensing valve 5, the opposite side oil pocket of pressure shut-off valve 6 is by branch oil pipe 7,8 communicate with rail, the load-sensing valve communicates with the oil pocket of pressure shut-off valve, 9 liang of chambers of the piston cylinder of Variable plunger pump respectively with rail, pressure shut-off valve connects, rail is provided with oil outlet B, the load-sensing valve, pressure shut-off valve communicates with drain tap L by drain mast 10; The load-sensing valve is connected with system pressure control and feedback signal interface X.Also have filler opening S, damping screw 11,12,13 among the figure.
Claims (1)
1. a load-sensing, pressure cut off, the control pump of awaiting orders, comprise the Variable plunger pump that communicates with oil cylinder, it is characterized in that: the oil supply port of Variable plunger pump is connected with an end of load-sensing valve and pressure shut-off valve by rail, the opposite side oil pocket of load-sensing valve, pressure shut-off valve communicates with rail by branch oil pipe, the load-sensing valve communicates with the oil pocket of pressure shut-off valve, the piston cylinder and two chambers of Variable plunger pump is connected with rail, pressure shut-off valve respectively, rail is provided with oil outlet, and load-sensing valve, pressure shut-off valve communicate with drain tap by drain mast; The load-sensing valve is connected with system pressure control and feedback signal interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200465446U CN201448312U (en) | 2009-06-12 | 2009-06-12 | Load sensing, pressure shut-off and standby control pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200465446U CN201448312U (en) | 2009-06-12 | 2009-06-12 | Load sensing, pressure shut-off and standby control pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201448312U true CN201448312U (en) | 2010-05-05 |
Family
ID=42553026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200465446U Expired - Fee Related CN201448312U (en) | 2009-06-12 | 2009-06-12 | Load sensing, pressure shut-off and standby control pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201448312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237785A (en) * | 2017-07-25 | 2017-10-10 | 江苏谷登工程机械装备有限公司 | A kind of pressure cut off control system of external enclosed pump |
-
2009
- 2009-06-12 CN CN2009200465446U patent/CN201448312U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237785A (en) * | 2017-07-25 | 2017-10-10 | 江苏谷登工程机械装备有限公司 | A kind of pressure cut off control system of external enclosed pump |
| CN107237785B (en) * | 2017-07-25 | 2019-03-12 | 江苏谷登工程机械装备有限公司 | A kind of pressure cut off control system of external enclosed pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu Hengyuan Hydraulic Co., Ltd. Assignor: Yang Xuhui Contract record no.: 2011320000396 Denomination of utility model: Load sensing, pressure shut-off and standby control pump Granted publication date: 20100505 License type: Exclusive License Record date: 20110325 |
|
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU HENGYUAN HYDRAULIC CO., LTD. Free format text: FORMER OWNER: YANG XUHUI Effective date: 20141212 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 226200 NANTONG, JIANGSU PROVINCE TO: 226000 NANTONG, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20141212 Address after: 226000 Industrial Park, Xin'an Town, Qidong, Jiangsu Patentee after: Jiangsu Hengyuan Hydraulic Co., Ltd. Address before: 226200 Jiangsu Province, Qidong City Department of Peace Road No. 810 King Dragon Town Building 4 floor Jiangsu Henyuan Hydraulic Co. Ltd. Patentee before: Yang Xuhui |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20160612 |