CN204152740U - A kind of plunger pump deciding grade and level stroking mechanism - Google Patents
A kind of plunger pump deciding grade and level stroking mechanism Download PDFInfo
- Publication number
- CN204152740U CN204152740U CN201420474132.3U CN201420474132U CN204152740U CN 204152740 U CN204152740 U CN 204152740U CN 201420474132 U CN201420474132 U CN 201420474132U CN 204152740 U CN204152740 U CN 204152740U
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- variable
- level
- plunger
- plunger pump
- deciding grade
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Abstract
The utility model discloses a kind of plunger pump deciding grade and level stroking mechanism, belong to mechanical field.Described plunger pump deciding grade and level stroking mechanism comprises variable shell, is arranged on the upper flange at described variable shell top, is arranged on the lower flange bottom described variable shell, the adjustment sleeve be fixed on described upper flange, the adjustable lever be fixed in described adjustment sleeve, be arranged on the plunger in the middle of described lower flange, the variable piston be arranged in described variable shell, the variable head that is arranged on spring above described variable piston, is connected with described variable piston.The utility model is by arranging variable head, change the variable of variable brilliance degree, make it to obtain peak rate of flow when low pressure, and when exceeding certain pressure, make flow minimizing export setting value to, meet the working condition requirement of low pressure and mass flow high-pressure low-flow, while satisfying the demands, save the energy.
Description
Technical field
The utility model relates to mechanical field, particularly a kind of plunger pump deciding grade and level stroking mechanism.
Background technique
Generally adopt quantitatively at the stroking mechanism in the plunger pump field of hydraulic machinery, manually, the variable format such as constant voltage, invariable power, servo; high-low pressure combination pump is often adopted when hydraulic system for low pressure and mass flow, high-pressure low-flow needs; when needing low pressure; two pumps are jointly for system provides energy; when hydraulic system needs high pressure; high-pressure service pump provides energy for system, and low pressure pump takes the method for overflow off-load to protect low pressure pump not come to harm.
Realizing in process of the present utility model, inventor finds that prior art at least exists following problem:
Hydraulic oil certainly will cause low pressure pump to dally through low pressure pump reciprocation cycle and waste energy, and hydraulic oil viscosity reduces, temperature ramps, and working life shortens.
Summary of the invention
In order to solve the problem of prior art, the utility model embodiment provides a kind of plunger pump deciding grade and level stroking mechanism.Described technological scheme is as follows:
The utility model embodiment provides a kind of plunger pump deciding grade and level stroking mechanism, and described plunger pump deciding grade and level stroking mechanism comprises variable shell, is arranged on the upper flange at described variable shell top, is arranged on the lower flange bottom described variable shell, the adjustment sleeve be fixed on described upper flange, the adjustable lever be fixed in described adjustment sleeve, be arranged on the plunger in the middle of described lower flange, the variable piston be arranged in described variable shell, the variable head that is arranged on spring above described variable piston, is connected with described variable piston.
Particularly, described adjustment sleeve is fixed on described upper flange by screw thread, and described adjustable lever is fixed in described adjustment sleeve by screw thread.
Particularly, described plunger contacts with described variable piston.
Particularly, described plunger side is provided with the first oil cavity channel, and described first oil cavity channel is communicated with the second oil cavity channel, and described second oil cavity channel is communicated with variable displacement pump oil outlet.
Particularly, described variable piston is provided with epicoele and cavity of resorption, and described epicoele, described cavity of resorption are all communicated with pump chamber.
Particularly, in described variable head, be provided with bearing pin, described bearing pin and described variable piston hinge.
The beneficial effect that the technological scheme that the utility model embodiment provides is brought is:
By arranging variable head, change the variable of variable brilliance degree, make it to obtain peak rate of flow when low pressure, and when exceeding certain pressure, make flow minimizing export setting value to, meet the working condition requirement of low pressure and mass flow high-pressure low-flow, while satisfying the demands, save the energy.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the plunger pump deciding grade and level stroking mechanism that the utility model embodiment provides.
Embodiment
For making the purpose of this utility model, technological scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model mode of execution is described in further detail.
Embodiment
The utility model embodiment provides a kind of plunger pump deciding grade and level stroking mechanism, see Fig. 1, described plunger pump deciding grade and level stroking mechanism comprises variable shell 1, is arranged on the upper flange 2 at variable shell 1 top, is arranged on the lower flange 3 bottom variable shell 1, the adjustment sleeve 4 be fixed on upper flange 2, the adjustable lever 5 be fixed in adjustment sleeve 4, the plunger 6 being arranged on lower flange 3 intermediate portion, the variable piston 7 be arranged in variable shell 1, the variable head 9 that is arranged on spring 8 above variable piston 7, is connected with variable piston 7.
Particularly, adjustment sleeve 4 is fixed on the upper flange 2 at variable shell 1 top by screw thread, and adjustable lever 5 is fixed in adjustment sleeve 4 by screw thread, and adjustable lever 5 and adjustment sleeve 4 can adjust relative position vertically by screw thread.
Particularly, plunger 6 and variable piston 7 times end in contact, variable piston 7 can move up and down vertically in variable shell 1.Plunger 6 side is provided with the first oil cavity channel c, and the first oil cavity channel c is communicated with the second oil cavity channel b, and the second oil cavity channel b is communicated with variable displacement pump oil outlet a (controlling oily passage).
Particularly, variable piston 7 is provided with epicoele and cavity of resorption, and fill pump chamber liquid in epicoele and cavity of resorption, variable piston 7 has passage epicoele, cavity of resorption to be communicated with pump chamber.
Particularly, in variable head 9, be provided with bearing pin 91, bearing pin 91 and variable piston 7 chain connection.The upper and lower displacement displacement of variable piston 7 makes variable head 9 drift angle change, final POF change.
Wherein, pump housing side is provided with filler opening d.When cylinder body rotates, plunger opposing cylinder moves reciprocatingly, and the enclosed volume of plunger case changes, and fluid is discharged from variable displacement pump oil outlet a, and discharge fluid is high pressure.Hydraulic oil enters filler opening d from pump housing side, liquid is compressed, flow out from variable displacement pump oil outlet a, variable displacement pump oil outlet a is for controlling oily passage, control oil and flow to the first oil cavity channel c from the second oil cavity channel b, again with in the first oil cavity channel c entering variable piston 7 lower chamber, overcome spring force at pressure oil effect lower plunger and promote variable piston moves.
When pump startup, system is non-loaded, a outlet pressure is 0, now controlling oil pocket pressure is 0, plunger lower end is without thrust, variable piston is in variable shell bottom under spring action up, the inclination angle of this variations per hour head is maximum, the output flow of plunger pump is maximum, meet the requirement of low pressure and mass flow, along with the increase of load, the pressure increase of a outlet, the thrust of plunger lower end is larger, when reach overcome spring force time, plunger moves up, promote variable piston to move up, until the lower end in contact of variable piston upper end and top adjustment sleeve, the inclination angle of this variations per hour head is minimum, output flow is minimum, meet the requirement of high-pressure low-flow.Otherwise when load diminishes, the thrust of plunger lower end reduces, and when being less than spring force, spring force promotes variable piston and moves to bottom to lower end, and variable head inclination angle returns to maximum position, and plunger pump flow is maximum.The decrement that the point that variable piston starts to start variable changes spring by adjustment adjustable lever regulates, and the position that minimum discharge size can be contacted with adjustment sleeve by the Level Change variable piston upper end of adjustment sleeve regulates.
The beneficial effect that the technological scheme that the utility model embodiment provides is brought is:
By arranging variable head, change the variable of variable brilliance degree, make it to obtain peak rate of flow when low pressure, and when exceeding certain pressure, make flow minimizing export setting value to, meet the working condition requirement of low pressure and mass flow high-pressure low-flow, while satisfying the demands, save the energy.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a plunger pump deciding grade and level stroking mechanism, it is characterized in that, described plunger pump deciding grade and level stroking mechanism comprises variable shell, is arranged on the upper flange at described variable shell top, is arranged on the lower flange bottom described variable shell, the adjustment sleeve be fixed on described upper flange, the adjustable lever be fixed in described adjustment sleeve, be arranged on the plunger in the middle of described lower flange, the variable piston be arranged in described variable shell, the variable head that is arranged on spring above described variable piston, is connected with described variable piston.
2. plunger pump deciding grade and level stroking mechanism according to claim 1, it is characterized in that, described adjustment sleeve is fixed on described upper flange by screw thread, and described adjustable lever is fixed in described adjustment sleeve by screw thread.
3. plunger pump deciding grade and level stroking mechanism according to claim 1, it is characterized in that, described plunger contacts with described variable piston.
4. plunger pump deciding grade and level stroking mechanism according to claim 1, it is characterized in that, described plunger side is provided with the first oil cavity channel, and described first oil cavity channel is communicated with the second oil cavity channel, and described second oil cavity channel is communicated with variable displacement pump oil outlet.
5. plunger pump deciding grade and level stroking mechanism according to claim 1, it is characterized in that, described variable piston is provided with epicoele and cavity of resorption, and described epicoele, described cavity of resorption are all communicated with pump chamber.
6. plunger pump deciding grade and level stroking mechanism according to claim 1, is characterized in that, be provided with bearing pin in described variable head, described bearing pin and described variable piston hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420474132.3U CN204152740U (en) | 2014-08-21 | 2014-08-21 | A kind of plunger pump deciding grade and level stroking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420474132.3U CN204152740U (en) | 2014-08-21 | 2014-08-21 | A kind of plunger pump deciding grade and level stroking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204152740U true CN204152740U (en) | 2015-02-11 |
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ID=52510861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420474132.3U Expired - Fee Related CN204152740U (en) | 2014-08-21 | 2014-08-21 | A kind of plunger pump deciding grade and level stroking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204152740U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763604A (en) * | 2015-03-26 | 2015-07-08 | 浙江大学台州研究院 | Alternating flow-allocating pump for controlling hydraulic excitation system |
| CN105042311A (en) * | 2015-06-19 | 2015-11-11 | 袁川来 | Variable control system of oil pump |
| CN105673373A (en) * | 2016-02-18 | 2016-06-15 | 西北工业大学 | Constant-pressure variable axial plunger pump with adjustable zero load flow |
-
2014
- 2014-08-21 CN CN201420474132.3U patent/CN204152740U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763604A (en) * | 2015-03-26 | 2015-07-08 | 浙江大学台州研究院 | Alternating flow-allocating pump for controlling hydraulic excitation system |
| CN105042311A (en) * | 2015-06-19 | 2015-11-11 | 袁川来 | Variable control system of oil pump |
| CN105673373A (en) * | 2016-02-18 | 2016-06-15 | 西北工业大学 | Constant-pressure variable axial plunger pump with adjustable zero load flow |
| CN105673373B (en) * | 2016-02-18 | 2018-02-06 | 西北工业大学 | No load discharge adjustable constant-pressure axial variable displacement plunger pump |
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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: 20150211 Termination date: 20170821 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |