CN2323172Y - Automatic pressure controlling device for high pressure pump - Google Patents
Automatic pressure controlling device for high pressure pump Download PDFInfo
- Publication number
- CN2323172Y CN2323172Y CN 98203171 CN98203171U CN2323172Y CN 2323172 Y CN2323172 Y CN 2323172Y CN 98203171 CN98203171 CN 98203171 CN 98203171 U CN98203171 U CN 98203171U CN 2323172 Y CN2323172 Y CN 2323172Y
- Authority
- CN
- China
- Prior art keywords
- control valve
- control
- pressure
- high pressure
- service pump
- 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
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Abstract
The utility model relates to an automatically pressure controlling device for a high pressure pump. The utility model is composed of a micro motor, a speed reducer, and a control valve. A high pressure hose which is arranged at the back cavity of the overflow valve of the high pressure pump is communicated with the control valve. The micro motor and a reduction box are connected with the driving thread sleeve of the control valve. The automatic control of the output pressure of the high pressure pump can be realized, which provides a base for realizing the automated operation of a device which uses the high pressure pump as the power. The utility model has the advantage of stable pressure regulation.
Description
The utility model relates to a kind of high-pressure service pump automatic pressure regulating device, mainly supplies the usefulness of the remote pressure regulation of high-pressure service pump automatic control system.
Prior art is to regulate high-pressure service pump relief valve spring pressure with handwheel, with the outlet pressure of control high-pressure service pump.Its deficiency is: must manual operate on the pump housing, thereby can't realize the automatic Regulation of high-pressure service pump.
The purpose of this practical firewood type is to overcome above-mentioned deficiency of the prior art and a kind of high-pressure service pump automatic pressure regulating device of realizing automatic Regulation is provided.
The purpose of this utility model can reach by following measure:
The utility model is made up of micro motor, retarder and control valve, and the spool of high-pressure service pump relief valve has throttle orifice, and the relief valve back cavity has high pressure hose to be communicated with control valve, and the transmission swivel nut of micro motor, speed reducer and control valve is connected.
The control valve body of control valve is connected with the transmission swivel nut, and piston, control spring and control spool are arranged in the control valve body, and control valve seat is to be sealed and matched with the control spool and is connected, and control valve seat end in addition is communicated with high-pressure service pump relief valve back cavity.
The drawing of accompanying drawing is described as follows:
Fig. 1 is the sectional view of the utility model basic structure;
Fig. 2 is the sectional view of the utility model control valve;
Fig. 3 is loaded on total figure on the support for the utility model.
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing:
Fig. 1 represents basic structure of the present utility model.The relief valve 11 of figure left side expression high-pressure service pump, the top of valve body 6 inner spools 5 is an ante-chamber, is communicated with the high-pressure service pump outlet.Spool below be a back cavity, in spring 12 is arranged, back cavity passes through high pressure hose 16 and is communicated with control valve 7.Front/back cavity connects by the throttle orifice 17 of spool.
Fig. 2 represents the structure of the utility model control valve 7, is made up of control valve casing 1, control spool 2, piston 3, transmission swivel nut 4, control spring 15, control valve seat 13 and control valve body 14, and control valve body outer end (diagram right-hand member) is threaded with the transmission swivel nut.Piston, control spring and control spool are arranged, the control valve seat in the control spool is opening and closing at the bottom of the control valve in the control valve body.
Fig. 3 represents to be equipped with on the support 9 total figure of the present utility model.Except adopting micro motor to drive the control valve, also can adopt stepper motor to drive control valve by coupling by coupling and retarder.
During use, when micro motor 10 drove 4 rotations of transmission swivel nut by coupling and retarder 8, axial advance and retreat moved the transmission swivel nut because of rotation produces, and it is mobile to promote piston work advance and retreat, thereby changed the elastic force of control spring 15.
When the cavity pressure balance of high-pressure service pump relief valve front and back, the elastic force of spring 12 closes relief valve.Push the control spool 2 of control valve 7 open and when causing control valve to produce overflow, back cavity pressure reduces when the back cavity pressure, high-pressure service pump ante-chamber (promptly exporting) pressure is pushed the spool 5 of relief valve open, produces the overflow of big flow, causes the outlet pressure of high-pressure service pump to reduce rapidly.Therefore, regulate the elastic force of control spring 15, with regard to the outlet pressure of can regulate high-pressure service pump.So the clockwise and anticlockwise and the rotating amount of distant control (be actually and adopt microcomputer control) micro motor 10 just can be realized the automatic Regulation to high-pressure service pump.
The utility model contrast prior art has following advantage: can realize the automatic accent to the high-pressure pump outlet pressure Control is for the equipment that adopts high-pressure pump to be used as power realizes that automation mechanized operation provides the foundation; Pressure regulation is stable.
Claims (2)
1, a kind of high-pressure service pump automatic pressure regulating device comprises micro motor and retarder, it is characterized in that, also comprises control valve, and high-pressure service pump relief valve back cavity has high pressure hose to be communicated with control valve, and the transmission swivel nut of micro motor, speed reducer and control valve is connected.
2, high-pressure service pump automatic pressure regulating device according to claim 1, it is characterized in that, the control valve body of control valve is connected with the transmission swivel nut, piston, control spring and control spool are arranged in the control valve body, control valve seat is to be sealed and matched with the control spool and is connected, and control valve seat end in addition is communicated with high-pressure service pump relief valve back cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98203171 CN2323172Y (en) | 1998-04-07 | 1998-04-07 | Automatic pressure controlling device for high pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98203171 CN2323172Y (en) | 1998-04-07 | 1998-04-07 | Automatic pressure controlling device for high pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2323172Y true CN2323172Y (en) | 1999-06-09 |
Family
ID=33960059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98203171 Expired - Fee Related CN2323172Y (en) | 1998-04-07 | 1998-04-07 | Automatic pressure controlling device for high pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2323172Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101233321B (en) * | 2005-07-28 | 2010-06-16 | 格雷索明尼苏达有限公司 | Reciprocating pump with electronically monitored air valve and piston |
| CN109154262A (en) * | 2016-05-17 | 2019-01-04 | 罗伯特·博世有限公司 | For the overflow valve of high-pressure pump, high-pressure pump and method for running overflow valve |
-
1998
- 1998-04-07 CN CN 98203171 patent/CN2323172Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101233321B (en) * | 2005-07-28 | 2010-06-16 | 格雷索明尼苏达有限公司 | Reciprocating pump with electronically monitored air valve and piston |
| CN109154262A (en) * | 2016-05-17 | 2019-01-04 | 罗伯特·博世有限公司 | For the overflow valve of high-pressure pump, high-pressure pump and method for running overflow valve |
| CN109154262B (en) * | 2016-05-17 | 2021-07-27 | 罗伯特·博世有限公司 | Overflow valve for a high-pressure pump, high-pressure pump and method for operating an overflow valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |