CN101598119A - A kind of coaxial plunger high-pressure oil pump - Google Patents
A kind of coaxial plunger high-pressure oil pump Download PDFInfo
- Publication number
- CN101598119A CN101598119A CNA2009103038033A CN200910303803A CN101598119A CN 101598119 A CN101598119 A CN 101598119A CN A2009103038033 A CNA2009103038033 A CN A2009103038033A CN 200910303803 A CN200910303803 A CN 200910303803A CN 101598119 A CN101598119 A CN 101598119A
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- pump
- cylinder body
- transmission shaft
- pressure oil
- pump case
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Abstract
The invention discloses a kind of coaxial plunger high-pressure oil pump, comprise transmission shaft, oil distribution casing, swash plate, the pump housing, pump case, cylinder body, ball strand, be arranged on several plungers and the piston shoes between plunger and swash plate in the cylinder body, described oil distribution casing is installed in the pump chamber mouth of pump case, it is characterized in that described transmission shaft one end is by two ball bearings, the other end is by on a needle bearing fixed installation and the pump case, be provided with spring assembly between described cylinder body and the ball strand, the described pump housing closely is connected with pump case and forms one.Advantage of the present invention is that consumption is low, high working efficiency, mass stability height.
Description
Technical field
The present invention relates to a kind of pluger type hydraulic pump, relate in particular to a kind of coaxial plunger high-pressure oil pump.
Background technique
Coaxial plunger high-pressure oil pump, by the driven by motor transmission shaft, transmission shaft drives the cylinder body rotation, does flexible to-and-fro motion thereby drive plunger in the cylinder hole of cylinder body, finishes the suction oil action of pump.Existing coaxial plunger high-pressure oil pump, because the fixed effect of transmission shaft is undesirable, cause cylinder body because plunger piston slippery boots produce side gravitation when reciprocating along the swash plate inclined-plane, causes pressure not concentrated, do not reach coaxial plunger high-pressure oil pump suction oil ideal operation effect.Rely on the backhaul dish to force plunger piston slippery boots on the inclined-plane, to move reciprocatingly in addition merely, not only increased the wearing and tearing probability of backhaul dish and piston shoes, and along with backhaul dish and piston shoes use for a long time, the degree of wear constantly increases, can not produce the pressure of sufficient intensity, have a strong impact on coaxial plunger high-pressure oil pump suction oil work effect.
Summary of the invention
The purpose of this invention is to provide a kind of high working efficiency, low in resources consumption, compact structure, coaxial plunger high-pressure oil pump that mass stability is high.
The technical solution used in the present invention is:
A kind of coaxial plunger high-pressure oil pump, comprise transmission shaft, oil distribution casing, swash plate, the pump housing, pump case, cylinder body, ball strand, end cap, be arranged on several plungers and the piston shoes between plunger and swash plate in the cylinder body, described oil distribution casing is installed in the pump chamber mouth of pump case, described transmission shaft two ends are fixedly installed on the end cap, are provided with spring assembly between described cylinder body and the ball strand.
Further, described transmission shaft one end is by two ball bearings, and the other end is fixedly installed on the end cap by a needle bearing.
Further, the described pump housing closely is connected with pump case and forms one.
As improvement of the present invention, transmission shaft one end is by two ball bearings, and the other end is by on a needle bearing fixed installation and the end cap.Running accuracy was higher after transmission shaft adopted so two-way fixed structure, had avoided cylinder body because plunger piston slippery boots producing side gravitation along the swash plate inclined-plane when reciprocating, makes the moment of generation more concentrated, had guaranteed the work effect of coaxial plunger high-pressure oil pump.
As another improvement of the present invention, be provided with spring assembly between cylinder body and the ball strand.Finish the work of oil scavenge pump oil by thereby spring assembly compressing plunger piston slippery boots is reciprocating in cylinder bore along the swash plate inclined-plane, because the elastic force effect of spring, avoided the long-term high strength that causes of using of backhaul dish and piston shoes to wear and tear, guaranteed the required pressure of coaxial plunger high-pressure oil pump proper functioning, reduced resource loss and improved working efficiency simultaneously.
The pump housing closely is connected with pump case and forms as one, and it is whole that the pump housing becomes with pump case disjunctor casting processing, makes structure compact and reasonable more, and beautiful shape has improved the pump housing, pump case coaxality, and machine run stability is improved.
Advantage of the present invention is low in resources consumption, high working efficiency, mass stability height.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is done and to describe in further detail:
Fig. 1 is a structure cross-sectional schematic of the present invention.
Wherein: 1, oil distribution casing, 2, swash plate, 3, the pump housing, 4, pump case, 5, cylinder body, 6, the ball strand, 7, plunger, 8, piston shoes, 9, transmission shaft, 10, ball bearing, 11, needle bearing, 12, spring assembly, 13, end cap.
Embodiment
As shown in Figure 1, coaxial plunger high-pressure oil pump of the present invention, comprise transmission shaft 9, oil distribution casing 1, swash plate 2, the pump housing 3, pump case 4, cylinder body 5, ball strand 6, end cap 13, be arranged on several plungers 7 in the cylinder body, and the piston shoes 8 between plunger 7 and swash plate 2, oil distribution casing 1 is installed in the pump chamber mouth of pump case 4, transmission shaft 9 two ends one end is by two ball bearings, the other end is by on 11 fixed installations of a needle bearing and the pump case 4, be provided with spring assembly 12 between cylinder body 5 and the ball strand 6, the pump housing 3 and pump case 4 be tight to be connected and to form one.
Claims (3)
1. coaxial plunger high-pressure oil pump, comprise transmission shaft, oil distribution casing, swash plate, the pump housing, pump case, cylinder body, ball strand, end cap, be arranged on several plungers and the piston shoes between plunger and swash plate in the cylinder body, described oil distribution casing is installed in the pump chamber mouth of pump case, it is characterized in that described transmission shaft two ends are fixedly installed on the end cap, be provided with spring assembly between described cylinder body and the ball strand.
2. a kind of coaxial plunger high-pressure oil pump according to claim 1 is characterized in that described transmission shaft one end by two ball bearings, and the other end is fixedly installed on the end cap by a needle bearing.
3. a kind of coaxial plunger high-pressure oil pump according to claim 1 is characterized in that the described pump housing closely is connected with pump case and forms one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009103038033A CN101598119A (en) | 2009-06-29 | 2009-06-29 | A kind of coaxial plunger high-pressure oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009103038033A CN101598119A (en) | 2009-06-29 | 2009-06-29 | A kind of coaxial plunger high-pressure oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101598119A true CN101598119A (en) | 2009-12-09 |
Family
ID=41419672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009103038033A Pending CN101598119A (en) | 2009-06-29 | 2009-06-29 | A kind of coaxial plunger high-pressure oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101598119A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839006A (en) * | 2010-05-26 | 2010-09-22 | 太原重工股份有限公司 | High-voltage slide shoe for excavators |
| CN106401863A (en) * | 2016-10-26 | 2017-02-15 | 九江七所精密机电科技有限公司 | Swash-plate type hydraulic plunger motor or pump immersed in water for use |
| CN111336083A (en) * | 2020-03-09 | 2020-06-26 | 嘉兴考普诺机械科技有限公司 | Hydraulic oil pump for machine tool machining |
| CN111550340A (en) * | 2020-05-01 | 2020-08-18 | 宁波安创电子科技有限公司 | Through-shaft plunger high-pressure oil pump |
-
2009
- 2009-06-29 CN CNA2009103038033A patent/CN101598119A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101839006A (en) * | 2010-05-26 | 2010-09-22 | 太原重工股份有限公司 | High-voltage slide shoe for excavators |
| CN101839006B (en) * | 2010-05-26 | 2011-11-16 | 太原重工股份有限公司 | High-voltage slide shoe for excavators |
| CN106401863A (en) * | 2016-10-26 | 2017-02-15 | 九江七所精密机电科技有限公司 | Swash-plate type hydraulic plunger motor or pump immersed in water for use |
| CN111336083A (en) * | 2020-03-09 | 2020-06-26 | 嘉兴考普诺机械科技有限公司 | Hydraulic oil pump for machine tool machining |
| CN111550340A (en) * | 2020-05-01 | 2020-08-18 | 宁波安创电子科技有限公司 | Through-shaft plunger high-pressure oil pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091209 |