CN205013422U - Stroking mechanism of servo variable pump of hydraulic pressure - Google Patents
Stroking mechanism of servo variable pump of hydraulic pressure Download PDFInfo
- Publication number
- CN205013422U CN205013422U CN201520738840.8U CN201520738840U CN205013422U CN 205013422 U CN205013422 U CN 205013422U CN 201520738840 U CN201520738840 U CN 201520738840U CN 205013422 U CN205013422 U CN 205013422U
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- valve
- big
- spring
- valve core
- valve body
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- Withdrawn - After Issue
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Abstract
The utility model relates to a stroking mechanism of servo variable pump of hydraulic pressure, it includes block and valve body, the valve body is established inside the block be equipped with filling oil valve hole I and filling oil valve hole II on the block of valve body front end the valve body rear end is equipped with the valve gap be equipped with big spring on the valve gap the valve body front portion is equipped with the valve opening be equipped with big case in the valve body big case rear end is equipped with the spring holder be equipped with big poppet spring on the spring holder the gate valve in -core is equipped with little case be equipped with little poppet spring on the little case be equipped with the adjusting washer between little poppet spring and the little case be equipped with the recess on the outer wall of big case be equipped with O type sealing washer in the recess, the front end of valve body, big case and the rear end of little case all are the frustum face. The utility model discloses the screw -in cartridge structure, simple to operate, plug -in components interchangeability is good, relies on the fluid that self provides to realize the hydrovalve function.
Description
Technical field
The utility model belongs to Hydraulic Field, is specifically related to a kind of hydraulic planger pump servo variable mechanism.
Background technique
Plunger armstrong's patent servo variable pump, this pump is used for construction machinery hydraulic system, its control mechanism mainly contains four main valves and a repairing relief valve composition, at present,, there is complex structure, difficulty be installed in major part hydraulic planger pump servo variable mechanism, the pin compatibility of valve is poor, the problems such as inconvenient maintenance.
Summary of the invention
Goal of the invention: the purpose of this utility model is to overcome deficiency of the prior art, provides a kind of thread cartridge structure, and easy for installation, pin compatibility is good, and the fluid relying on self to provide realizes the stroking mechanism of the hydraulic servo variable displacement pump of hydrovalve function.
Technological scheme: in order to solve the problems of the technologies described above, the stroking mechanism of a kind of hydraulic servo variable displacement pump described in the utility model, it comprises block and valve body, described valve body is located at bulk inner, the block of described valve body front end is provided with repairing valve opening I and repairing valve opening II, valve gap is provided with at described valve rear end, described valve gap is provided with big spring, valve opening is provided with in described valve body front portion, big valve core is provided with in described valve body, spring seat is provided with in described big valve core rear end, described spring seat is provided with big valve core spring, small valve core is provided with in described big valve core, described small valve core is provided with small valve core spring, adjustment packing ring is provided with between described small valve core spring and small valve core, the outer wall of described big valve core is provided with groove, O RunddichtringO is provided with in described groove, described valve body, the front end of big valve core and the rear end of small valve core are all frustum face, be respectively the first frustum face, second frustum face and third hand tap table top, described first frustum face coordinates with repairing valve opening I and is flexibly connected, formed during both contacts and be tightly connected, described second frustum face coordinates with valve body and is flexibly connected, formed during both contacts and be tightly connected, described third hand tap table top coordinates with spring seat and is flexibly connected, formed during both contacts and be tightly connected.
Described big valve core spring one end is connected with spring seat, and the other end is connected with valve gap.
Described valve body, valve gap and big spring composition one-step valve; Described big valve core, spring seat and big valve core spring composition secondary valve; Described small valve core and small valve core spring form three step valves; The control valve assembly of described one-step valve, secondary valve and three step valves composition plug-in mounting structure.
Described one-step valve, secondary valve and three step valves are all cone valve.
Described control valve assembly and block are threaded connection.
Described repairing valve opening I place is for importing and exporting oil pocket 1, and repairing valve opening II place is for importing and exporting oil pocket 2.
Working principle of the present utility model: when vane pump fuel feeding is to intermediate, the power acting on oil liquid pressure on big valve core and small valve core spring makes small valve core close on spring seat, form closed chamber, valve body big spring can be overcome when oil liquid pressure continues to increase to, the conical surface of valve body is opened, now, fluid enters low-pressure cavity, on the contrary, when import and export oil pocket 2 is hyperbaric chamber, importing and exporting oil pocket 1 is low-pressure cavity, high pressure oil enters in the valve opening of valve body front end with in the damping hole of valve rear end valve gap, along with the rising of pressure, the hydraulic fluid pressure of front end constantly overcomes the elastic force of big valve core spring, the high pressure oil of rear end then enters into the damping hole of big valve core spring chamber and spring seat from the damping hole meter of valve gap, the making a concerted effort of the power of big spring and the pressure of fluid big valve core and valve body is made to be in closed state, when being greater than the setting value of small valve core spring when making a concerted effort, small valve core is opened, two ends now in valve body produce pressure reduction instantaneously, the hydraulic fluid pressure of front end overcomes the elastic force of big valve core spring below, the conical surface that big valve core and valve body are close to is opened, now the aperture of hydraulic oil in the middle of big valve core overflows to repairing chamber.
Beneficial effect: the utility model compared with prior art, its remarkable advantage is: the utility model relies on the hydraulic pressure self provided to realize hydraulic control valve function, adopt cone valve, fast response time, good stability, whole control valve assembly relies on screw thread to be connected with block, one-step valve, secondary valve and three step valves composition plug-in mounting structure, interchangeability is good, and be convenient to maintenance, this product is applicable to the system of high pressure compared with small flow.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, the stroking mechanism of a kind of hydraulic servo variable displacement pump described in the utility model, it comprises block 1 and valve body 2, it is inner that described valve body 2 is located at block 1, the block 1 of described valve body 2 front end is provided with repairing valve opening I 3 and repairing valve opening II 4, valve gap 5 is provided with in described valve body 2 rear end, described valve gap 5 is provided with big spring 6, valve opening 7 is provided with in described valve body 2 front portion, big valve core 8 is provided with in described valve body 2, spring seat 9 is provided with in described big valve core 8 rear end, described spring seat 9 is provided with big valve core spring 10, small valve core 11 is provided with in described big valve core 8, described small valve core 11 is provided with small valve core spring 12, be provided with between described small valve core spring 12 and small valve core 11 and adjust packing ring 13, the outer wall of described big valve core 8 is provided with groove 14, O RunddichtringO 15 is provided with in described groove 14, described valve body 2, the front end of big valve core 8 and the rear end of small valve core 11 are all frustum face, be respectively the first frustum face 16, second frustum face 17 and third hand tap table top 18, described first frustum face 16 coordinates with repairing valve opening I 3 and is flexibly connected, described second frustum face 17 coordinates with valve body 2 and is flexibly connected, described third hand tap table top 18 coordinates with spring seat 9 and is flexibly connected, described big valve core spring 10 one end is connected with spring seat 9, and the other end is connected with valve gap 5, described valve body 2, valve gap 5 and big spring 6 form one-step valve, described big valve core 8, spring seat 9 and big valve core spring 10 form secondary valve, described small valve core 11 and small valve core spring 12 form three step valves, the control valve assembly of described one-step valve, secondary valve and three step valves composition plug-in mounting structure, described one-step valve, secondary valve and three step valves are all cone valve, described control valve assembly and block 1 are threaded connection.The utility model relies on the hydraulic pressure self provided to realize hydraulic control valve function, adopt cone valve, fast response time, good stability, whole control valve assembly relies on screw thread to be connected with block, one-step valve, secondary valve and three step valves composition plug-in mounting structure, and interchangeability is good, be convenient to maintenance, this product is applicable to the system of high pressure compared with small flow.
The utility model provides a kind of thinking and method; the method and access of this technological scheme of specific implementation is a lot; the above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art, under the prerequisite not departing from the utility model principle, some improvements and modifications can also be made; these improvements and modifications also should be considered as protection domain of the present utility model, and all available prior art of each constituent element not clear and definite in the present embodiment is realized.
Claims (5)
1. the stroking mechanism of a hydraulic servo variable displacement pump, it is characterized in that: it comprises block (1) and valve body (2), it is inner that described valve body (2) is located at block (1), the block (1) of described valve body (2) front end is provided with repairing valve opening I (3) and repairing valve opening II (4), valve gap (5) is provided with in described valve body (2) rear end, described valve gap (5) is provided with big spring (6), valve opening (7) is provided with in described valve body (2) front portion, big valve core (8) is provided with in described valve body (2), spring seat (9) is provided with in described big valve core (8) rear end, described spring seat (9) is provided with big valve core spring (10), small valve core (11) is provided with in described big valve core (8), described small valve core (11) is provided with small valve core spring (12), be provided with between described small valve core spring (12) and small valve core (11) and adjust packing ring (13), the outer wall of described big valve core (8) is provided with groove (14), O RunddichtringO (15) is provided with in described groove (14), described valve body (2), the front end of big valve core (8) and the rear end of small valve core (11) are all frustum face, be respectively the first frustum face (16), second frustum face (17) and third hand tap table top (18), described first frustum face (16) coordinates with repairing valve opening I (3) and is flexibly connected, described second frustum face (17) coordinates with valve body (2) and is flexibly connected, described third hand tap table top (18) coordinates with spring seat (9) and is flexibly connected.
2. the stroking mechanism of hydraulic servo variable displacement pump according to claim 1, is characterized in that: described big valve core spring (10) one end is connected with spring seat (9), and the other end is connected with valve gap (5).
3. the stroking mechanism of hydraulic servo variable displacement pump according to claim 1, is characterized in that: described valve body (2), valve gap (5) and big spring (6) composition one-step valve; Described big valve core (8), spring seat (9) and big valve core spring (10) composition secondary valve; Described small valve core (11) and small valve core spring (12) form three step valves; The control valve assembly of described one-step valve, secondary valve and three step valves composition plug-in mounting structure.
4. the stroking mechanism of hydraulic servo variable displacement pump according to claim 3, is characterized in that: described one-step valve, secondary valve and three step valves are all cone valve.
5. the stroking mechanism of hydraulic servo variable displacement pump according to claim 3, is characterized in that: described control valve assembly and block (1) are threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520738840.8U CN205013422U (en) | 2015-09-22 | 2015-09-22 | Stroking mechanism of servo variable pump of hydraulic pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520738840.8U CN205013422U (en) | 2015-09-22 | 2015-09-22 | Stroking mechanism of servo variable pump of hydraulic pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205013422U true CN205013422U (en) | 2016-02-03 |
Family
ID=55212031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520738840.8U Withdrawn - After Issue CN205013422U (en) | 2015-09-22 | 2015-09-22 | Stroking mechanism of servo variable pump of hydraulic pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205013422U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626617A (en) * | 2016-03-23 | 2016-06-01 | 合肥长源液压股份有限公司 | Pressure control device in static hydraulic system |
| CN106545537A (en) * | 2015-09-22 | 2017-03-29 | 无锡市德美嘉机械科技有限公司 | A kind of stroking mechanism of hydraulic servo variable pump |
-
2015
- 2015-09-22 CN CN201520738840.8U patent/CN205013422U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106545537A (en) * | 2015-09-22 | 2017-03-29 | 无锡市德美嘉机械科技有限公司 | A kind of stroking mechanism of hydraulic servo variable pump |
| CN106545537B (en) * | 2015-09-22 | 2018-08-10 | 江苏汉力士液压制造有限公司 | A kind of stroking mechanism of hydraulic servo variable pump |
| CN105626617A (en) * | 2016-03-23 | 2016-06-01 | 合肥长源液压股份有限公司 | Pressure control device in static hydraulic system |
| CN105626617B (en) * | 2016-03-23 | 2017-08-29 | 合肥长源液压股份有限公司 | Pressure control device in hydrostatic pressure system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20171023 Granted publication date: 20160203 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20180423 Granted publication date: 20160203 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180615 Address after: 214241 Xuxu Town Industrial Zone, Yixing City, Wuxi, Jiangsu Patentee after: Jiangsu halies hydraulic manufacturing Co., Ltd. Address before: 214246 Fang Zhuang Industrial Zone, Xuxu Town, Yixing City, Wuxi, Jiangsu Patentee before: WUXI DEMEIJIA MACHINERY TECHNOLOGY CO., LTD. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160203 Effective date of abandoning: 20180810 |