CN2409350Y - Piston rod volume variable displacement regulator - Google Patents
Piston rod volume variable displacement regulator Download PDFInfo
- Publication number
- CN2409350Y CN2409350Y CN 99250846 CN99250846U CN2409350Y CN 2409350 Y CN2409350 Y CN 2409350Y CN 99250846 CN99250846 CN 99250846 CN 99250846 U CN99250846 U CN 99250846U CN 2409350 Y CN2409350 Y CN 2409350Y
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- CN
- China
- Prior art keywords
- piston rod
- connecting rod
- stroke
- piston
- cavity
- 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 discloses a piston rod volume variable displacement regulator. A pump body is provided with an oil storage chamber, the volume of which can be changed, and the oil storage chamber is communicated with a piston cavity. The inner part of a piston rod is provided with a cavity in which a connecting rod provided with a plug is arranged. The wall of the piston rod is provided with a through hole. The utility model can lead the stroke of the connecting rod to be unchanged, the volume of the oil storage chamber is adjusted, and the flow quantity is adjusted. The utility model is suitable for using a device, the stroke of which is fixed, to drive a device, the stroke of which needs to be changed. The utility model has the characteristics of convenient adjustment, no noise, and simple structure.
Description
The utility model belongs to pump class technology, is specifically related to the flow adjuster in a kind of pump.
A lot of pump classes such as metering pump adopt the method for the regulating piston throw of lever to reach the Flow-rate adjustment purpose at present mostly, and the method for adjustment stroke are more.General as:
1, arc posture.It is to adopt to connect a segmental support in the piston rod outer end, and the segmental support outer end has one to regulate bolt.Make to be arranged in the inner termination that the recessed eccentric shaft of segmental support bow rotates the inner side surface and the adjusting bolt of collision segmental support, drive piston rod and move around.When adjusting the distance of regulating between bolt and eccentric shaft, can change the stroke of piston rod, thereby reach the purpose of Flow-rate adjustment.
2, wedge shape shaft type or N oblique crank Z formula.It is the wedge axle that a band leading screw is set in a hollow shaft, but the rotation drivening rod and the piston rod of hollow shaft are done straight reciprocating motion, and when adjustment wedge axle moves up and down, can change the throw of eccentric of connecting rod, thereby the stroke of connecting rod and piston rod is changed, reach the purpose of Flow-rate adjustment.
With upper type all is the purpose that reaches the flow of regulating pump by the stroke that changes piston rod and outside connecting rod simultaneously.
The purpose of this utility model provides the device that a kind of outside connecting rod stroke is constant, can conveniently adjust the flow of pump.
The technical solution adopted in the utility model is: piston rod volume variable regulating device comprises the pump housing and piston rod, and an accumulator that communicates with piston cavity is arranged on the pump housing, and the adjustment piece is arranged in the accumulator, adjusts piece and is connected with regulating handle.Cavity is arranged in the piston rod, the connecting rod that has chock plug is arranged in the cavity, on the piston rod wall open-work is arranged.
During flow adjuster work, in the cavity of piston rod liquid is housed, when connecting rod moved inward, the liquid in the plunger was pressed in the accumulator by the open-work on the piston wall, and behind the accumulator full of liquid, piston rod just moves inward with connecting rod; Outside when mobile when connecting rod, its chock plug pulling piston rod outwards moves.When adjusting the volume of accumulator, the relative position that connecting rod and piston rod move inward simultaneously changes, and the connecting rod stroke is constant, and the piston rod stroke is changed, thereby reaches the purpose of regulating flow.
The utility model is used for removing to drive the device that needs stroke alteration with the fixed journey system device.Can make connecting rod piston produce fixedly reciprocating stroke as crankshaft ﹠ connecting, can make piston stroke variable after adding this device, thereby make the flow change of pump.The contrast prior art the utlity model has easy to adjust, noise free, characteristic of simple structure.
Further specify structure of the present utility model below in conjunction with drawings and embodiments.
Fig. 1 is arc posture metering pump flow regulator structural representation;
Fig. 2 is a wedge shape shaft type metering pump flow regulator structural representation;
Fig. 3 is a structural representation of the present utility model.
Piston rod volume variable regulating device is that an accumulator 6 that interlinks with piston cavity is set on the pump housing 3, adjustment piece 5 moving up and down is arranged in the accumulator 6, adjusting on the piece 5 has seal ring closely to contact with the accumulator inwall, adjust piece 5 and be connected with the regulating handle 4 that stretches out outside the accumulator 6, when rotating regulating handle 4, adjust piece 5 and promptly move up and down, adjustment piece 5 following accumulator 6 volumes are changed.There is cavity 9 piston rod 2 inside, and the connecting rod 1 that has chock plug 7 is arranged in the cavity 9, and chock plug 7 closely contacts with the inwall of cavity 9.There is undergauge cavity 9 outer ends, and all recessed shoulders that this undergauge forms adapt with the convex shoulder of connecting rod chock plug 7, and promptly when moving to this protruding, recessed shoulder collision outside the connecting rod 1, it is outwards mobile together to spur piston rod 2.Have one section cylinder recessed 8 on piston rod 2 outer walls, the position of cylinder recessed 8 and length and the stroke of connecting rod 1 in plunger 9 adapt, and on the piston wall of recessed section of this cylinder open-work 10 are arranged.When flow adjuster is worked, be filled with oil in the plunger 9, when connecting rod 1 inwardly moved, part oil was pressed in the accumulator 6 through open-work 10, and the air in the former accumulator is compressed, and after accumulator 6 was full of oil, piston rod 2 just moved in connecting rod 1.This moment, connecting rod chock plug 7 was L with the distance of plunger 9 end walls.Connecting rod 1 is outside when mobile, and beginning piston rod 2 wouldn't move, and the oil in the accumulator 6 is back in the plunger 9, and when in the connecting rod chock plug 7 convex shoulders collision plunger 9 during the recessed shoulder of undergauge, the side pulls to piston rod 2 outward and moves.When adjusting regulating handle 4, adjustment piece 5 is moved up and down, when changing the volume of accumulator 6, connecting rod 1 also moves back and forth according to original stroke, but connecting rod 1 moved inward the relative position that drives piston rod 2 motions and became this moment, and promptly distance L changes, so the stroke of piston rod 2 was with originally different.Thereby can reach the purpose of Flow-rate adjustment.
Claims (1)
- A kind of piston rod volume variable regulating device comprises the pump housing (3), and piston rod (2) is characterized in that an accumulator that communicates with piston cavity (6) is arranged on the pump housing (3), and adjustment piece (5) is arranged in the accumulator (6), adjusts piece (5) and is connected with regulating handle (4); There is cavity (9) piston rod (2) inside, and the connecting rod (1) that has chock plug (7) is arranged in the cavity (9), on piston rod (2) wall open-work (10) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99250846 CN2409350Y (en) | 1999-12-28 | 1999-12-28 | Piston rod volume variable displacement regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99250846 CN2409350Y (en) | 1999-12-28 | 1999-12-28 | Piston rod volume variable displacement regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2409350Y true CN2409350Y (en) | 2000-12-06 |
Family
ID=34035503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99250846 Expired - Fee Related CN2409350Y (en) | 1999-12-28 | 1999-12-28 | Piston rod volume variable displacement regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2409350Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406724C (en) * | 2001-08-03 | 2008-07-30 | 韩国机械研究院 | Tilted variable axial piston device |
-
1999
- 1999-12-28 CN CN 99250846 patent/CN2409350Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406724C (en) * | 2001-08-03 | 2008-07-30 | 韩国机械研究院 | Tilted variable axial piston device |
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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 |