CN201606201U - Axial variable plunger pump - Google Patents
Axial variable plunger pump Download PDFInfo
- Publication number
- CN201606201U CN201606201U CN2009202771342U CN200920277134U CN201606201U CN 201606201 U CN201606201 U CN 201606201U CN 2009202771342 U CN2009202771342 U CN 2009202771342U CN 200920277134 U CN200920277134 U CN 200920277134U CN 201606201 U CN201606201 U CN 201606201U
- Authority
- CN
- China
- Prior art keywords
- variable
- pump
- head
- axial
- lead screw
- 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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- Reciprocating Pumps (AREA)
Abstract
The utility model relates to an axial variable plunger pump, belonging to the field of pumps. The axial variable plunger pump is provided with a variable pump shell and is characterized in that an inner cavity of the variable pump shell is provided with a variable plunger; a concave hole of the variable pump shell is internally provided with a variable head; a mortar head of the lower end of the variable head is articulated with a mortar slot of the variable plunger on which a lead screw nut is fixed; and a transmission lead screw is screwed on the lead screw nut and connected with an output shaft of a stepping motor. In the axial variable plunger pump, the variable of a hydraulic pump is not affected and interfered by load, and the axial variable plunger pump changes the manual operating into the stepping motor operation, thus being capable of realizing remotely automatic control, having convenient control, reliability and high precision, and providing a reliable joining mode for the automation control.
Description
Technical field
The utility model relates to mechanical pump class field, especially a kind of axial variable plunger pump.
Background technique
As everyone knows, at present, in axial piston pump, what the change of flow and load were irrelevant is exactly manual adjustment formula Variable plunger pump, but manual adjustment formula variable displacement pump is not suitable for doing frequent adjustment, can not realize telecontrol and control automatically, can't satisfy job requirement in automatic control system.
Summary of the invention
In order to overcome the deficiency of manual adjustment formula Variable plunger pump, the utility model provides a kind of axial piston pump that can control automatically and can frequently change flow.This pump changes control mode on the basis of original manual adjustment.According to different umber of pulses,, change the deflection angle of variable head in the oil hydraulic pump by the variable piston, thereby reach the purpose of variable with the variable piston of stepper motor in turn-screw control plunger pump.So not only can realize remote auto control, and can frequently change the flow of oil hydraulic pump, and the variation of flow and load have nothing to do, not influenced by it and disturb.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of axial variable plunger pump, be provided with the variable displacement pump housing, variable displacement pump housing inner chamber is equipped with the variable piston, be provided with the variable head in the shrinkage pool of variable shell, the mortar head of variable head lower end and the mortar groove of variable piston are hinged, be fixed with feed screw nut on the variable piston, be combined with drive lead screw on the feed screw nut, drive lead screw is connected with the output shaft of stepper motor.
The utility model also can be realized by following measure: be connected with coupling between the output shaft of drive lead screw and stepper motor.
The beneficial effects of the utility model are, the variable of oil hydraulic pump is not subjected to the influence and the interference of load, and by manually changing stepper motor into, can realize remote auto control, and control is convenient, reliable, precision is high, for automation control provides reliable bridging mode.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 the utility model structural representation.
1. variable heads among the figure; 2. variable piston; 3. variable displacement pump housing; 4. feed screw nut; 5. turn-screw; 6. locating pad; 7. upper flange; 8. coupling; 9. stepper motor.
Embodiment
Shown in Figure 1, the utility model is provided with variable displacement pump housing 3, variable displacement pump housing 3 inner chambers are equipped with variable piston 2, be provided with variable head 1 in the shrinkage pool of variable displacement pump housing 3, the mortar head of variable head 1 lower end and the mortar groove of variable piston 2 are hinged, and are fixed with feed screw nut 4 on the variable piston 2, and feed screw nut 4 spins together with drive lead screw 5 one ends, drive lead screw 5 the other ends are fixedlyed connected with the output shaft of stepper motor 9 through coupling 8, and locating pad 6 and upper flange 7 are installed on the variable displacement pump housing 3 of coupling 8 inboards.
The utility model feed screw nut 4 is fixed on the variable piston 2, upper flange 7 is fixed on the variable displacement pump housing 3, when stepper motor 9 obtains pulse command, main shaft can rotate a certain angle, by the rotation of coupling 8 and turn-screw 5, feed screw nut 4 moves the relative position of variable piston 2, when variable piston 2 moves, change the angle of deflection of variable head 1, reach the variable of variable displacement pump.After stepper motor 9 is finished instruction, turn-screw 5 is by the quiet torque take-up of stepper motor 9, it is constant that variable piston 2 is fixed on the corresponding position, the angle of yaw of variable head 1 also just is fixed, at this moment, oil hydraulic pump is also just worked under new flow, and delivery pressure and flow are irrelevant, have so just guaranteed that flow is not subjected to the influence and the interference of load variations.
Claims (2)
1. axial variable plunger pump, be provided with the variable displacement pump housing, it is characterized in that: variable displacement pump housing inner chamber is equipped with the variable piston, be provided with the variable head in the shrinkage pool of variable shell, the mortar head of variable head lower end and the mortar groove of variable piston are hinged, be fixed with feed screw nut on the variable piston, be combined with drive lead screw on the feed screw nut, drive lead screw is connected with the output shaft of stepper motor.
2. according to the described axial variable plunger pump of claim 1, it is characterized in that being connected with coupling between the output shaft of said drive lead screw and stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202771342U CN201606201U (en) | 2009-12-04 | 2009-12-04 | Axial variable plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202771342U CN201606201U (en) | 2009-12-04 | 2009-12-04 | Axial variable plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201606201U true CN201606201U (en) | 2010-10-13 |
Family
ID=42950907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202771342U Expired - Fee Related CN201606201U (en) | 2009-12-04 | 2009-12-04 | Axial variable plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201606201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761464A (en) * | 2009-12-04 | 2010-06-30 | 威海华东数控股份有限公司 | Axial variable plunger pump |
-
2009
- 2009-12-04 CN CN2009202771342U patent/CN201606201U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761464A (en) * | 2009-12-04 | 2010-06-30 | 威海华东数控股份有限公司 | Axial variable 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: 20101013 Termination date: 20141204 |
|
| EXPY | Termination of patent right or utility model |