CN2202803Y - Radial plunger pump - Google Patents
Radial plunger pump Download PDFInfo
- Publication number
- CN2202803Y CN2202803Y CN 94222204 CN94222204U CN2202803Y CN 2202803 Y CN2202803 Y CN 2202803Y CN 94222204 CN94222204 CN 94222204 CN 94222204 U CN94222204 U CN 94222204U CN 2202803 Y CN2202803 Y CN 2202803Y
- Authority
- CN
- China
- Prior art keywords
- plunger
- cylinder body
- bearing shell
- radial
- bent axle
- 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 a radial plunger pump, comprising a cylinder body, a crankshaft, and a plunger, wherein, the cylinder body and the plunger are in a radial stelliform equispaced state. The inner end of the plunger is movably connected with the crankshaft, and the other of the plunger end forms a sealed working chamber with the cylinder body. The utility model is characterized in that the crankshaft is sheathed with a return ring in the radial direction, and bearing shells are plugged in the return ring in a stelliform equispaced state; the inner end of the plunger is provided with a concave slot, both sides of the concave slot are provided with cross bores, the outer end of each bearing shell is provided with a semicircle bore, the inner end of the bearing shell is in a circular arc shape, and is coincided with the outer diameter of the crankshaft; the plunger pin is penetrated through the cross bores of the plunger concave slot and the semicircle bores of outer ends of the bearing shells, is used for connecting the plunger and bearing shells, and is return ring is clamped in the plunger concave slot by the plunger pin. The radial plunger pump omits a return spring, and the structure is compact.
Description
The utility model relates to a kind of radial plunger pump, belongs to the oil hydraulic pump technical scope.
The cylinder body of radial plunger pump and plunger are the radially uniform state of star, rely on the variation of cylinder internal volume to produce pressure oil.Its structure comprises cylinder body, bent axle, plunger, retracting spring, and the inner of plunger is against on the bent axle, and the other end and cylinder body constitute the active chamber of sealing, and cylinder body and plunger are the radially uniform state of star.When crankshaft rotating, because the interaction of eccentric and retracting spring, plunger is to-and-fro motion in cylinder body, finishes oil suction and presses oily process.This radial plunger pump is owing to adopt retracting spring, complex structure, thereby plunger pump is not only greatly but also heavy.
The purpose of this utility model provides a kind of retracting spring that omitted, and the radial plunger pump of compact structure.
The radial plunger pump structure that the utility model proposes comprises cylinder body, bent axle, plunger, cylinder body and plunger are the radially uniform state of star, the inner of plunger and bent axle flexibly connect, the other end and cylinder body constitute the active chamber of sealing, it is characterized in that bent axle radially is with the backhaul ring, bearing shell is inserted in the backhaul ring by the uniform state of star; Plunger the inner is provided with groove, and the groove both sides have cross-drilled hole, and the bearing shell outer end is provided with semicircle orifice, and the inner is circular arc and the bent axle external diameter coincide; Plunger pin passes plunger groove cross-drilled hole and bearing shell outer end semicircle orifice, connects plunger and bearing shell, and the backhaul ring is stuck in the plunger groove.
The radial plunger pump that the utility model proposes is rational in infrastructure, has omitted retracting spring, and plunger has adopted backhaul ring, bearing shell and plunger pin with being connected of bent axle.When crankshaft rotating, bearing shell is released plunger, and the backhaul ring retracts plunger, thereby plunger is reciprocating in cylinder body, finishes imbibition and discharge opeing process.
Followingly concrete enforcement of the present utility model is further described with reference to accompanying drawing.
Shown in Figure 1 is the structural drawing of this radial plunger pump;
Shown in Figure 2 is the A-A sectional view of Fig. 1.
This radial plunger pump structure comprises cylinder body 1, bent axle 5, plunger 2, and cylinder body 1 and 3 plungers 2 are the radially uniform state of star, and the inner of plunger 2 and bent axle 5 flexibly connect, and the other end and cylinder body 1 constitute the active chamber of sealing.It is characterized in that bent axle 5 radially is with 6,3 bearing shells 4 of backhaul ring and is inserted in the backhaul ring 6 by the uniform state of star; Plunger 2 the inners have groove, and the groove both sides have cross-drilled hole, and bearing shell 4 outer ends are provided with semicircle orifice, and the inner is circular arc and bent axle 5 external diameters coincide; Plunger pin 3 passes plunger 2 groove cross-drilled holes and bearing shell 4 outer end semicircle orifices, connects plunger 2 and bearing shell 4, and backhaul ring 6 is stuck in plunger 2 grooves.
Claims (1)
- A kind of radial plunger pump, its structure comprises cylinder body, bent axle, plunger, cylinder body and plunger are the radially uniform state of star, the inner of plunger and bent axle flexibly connect, the other end and cylinder body constitute the active chamber of sealing, it is characterized in that bent axle radially is with the backhaul ring, bearing shell is inserted in the backhaul ring by the uniform state of star; Plunger the inner is provided with groove, and the groove both sides have cross-drilled hole, and the bearing shell outer end is provided with semicircle orifice, and the inner is circular arc and the bent axle external diameter coincide; Plunger pin passes plunger groove cross-drilled hole and bearing shell outer end semicircle orifice, connects plunger and bearing shell, and the backhaul ring is stuck in the plunger groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94222204 CN2202803Y (en) | 1994-09-19 | 1994-09-19 | Radial plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94222204 CN2202803Y (en) | 1994-09-19 | 1994-09-19 | Radial plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2202803Y true CN2202803Y (en) | 1995-07-05 |
Family
ID=33836275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94222204 Expired - Fee Related CN2202803Y (en) | 1994-09-19 | 1994-09-19 | Radial plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2202803Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422550C (en) * | 2003-10-23 | 2008-10-01 | 西门子公司 | Radial piston pumps for common rail injection systems |
| CN101799001A (en) * | 2010-03-26 | 2010-08-11 | 王润湘 | Cam-type air compressor |
| CN109519351A (en) * | 2018-11-21 | 2019-03-26 | 中国航发西安动力控制科技有限公司 | A kind of plunger return facilities for crankshaft connecting rod type radial plunger pump |
-
1994
- 1994-09-19 CN CN 94222204 patent/CN2202803Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422550C (en) * | 2003-10-23 | 2008-10-01 | 西门子公司 | Radial piston pumps for common rail injection systems |
| CN101799001A (en) * | 2010-03-26 | 2010-08-11 | 王润湘 | Cam-type air compressor |
| CN109519351A (en) * | 2018-11-21 | 2019-03-26 | 中国航发西安动力控制科技有限公司 | A kind of plunger return facilities for crankshaft connecting rod type radial plunger pump |
| CN109519351B (en) * | 2018-11-21 | 2020-10-20 | 中国航发西安动力控制科技有限公司 | Plunger return device for crankshaft connecting rod type radial plunger pump |
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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 |