CN102953972A - Low-noise oil pump - Google Patents
Low-noise oil pump Download PDFInfo
- Publication number
- CN102953972A CN102953972A CN2012104779190A CN201210477919A CN102953972A CN 102953972 A CN102953972 A CN 102953972A CN 2012104779190 A CN2012104779190 A CN 2012104779190A CN 201210477919 A CN201210477919 A CN 201210477919A CN 102953972 A CN102953972 A CN 102953972A
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- CN
- China
- Prior art keywords
- plungers
- oil pump
- plunger
- noise
- oil
- 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.)
- Pending
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- 238000000034 method Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Reciprocating Pumps (AREA)
- Rotary Pumps (AREA)
- Compressor (AREA)
Abstract
The invention discloses a low-noise oil pump which comprises two plunger sleeves and a crank shaft, wherein two plungers which are in sealing sliding fit are respectively arranged in the plunger sleeves; one ends of the two plungers, extending out of the plunger sleeves, are connected with a same position of the crank shaft through a pin shaft; the central lines of the two plungers are coincided; the two plunger sleeves are arranged in opposite positions; and a one-way inlet and a one-way outlet are arranged at the top of each of the plunger sleeves. The crank shaft is adopted by the low-noise oil pump provided by the invention to drive the two plungers with reverse motion rules and the crank shaft generates the acting forces to the plungers all the time during a rotating process, so that the noise caused by the instability of the present single plunger is avoided; the two plungers can simultaneously convey oil, so that the efficiency of the oil pump is increased; and an oil inlet area is designed as being more than a one-way outlet area, so that the degree of easiness in forming gas by the negative pressure in the oil pump during an oil feeding process is reduced and the generation of the noise is further overcome.
Description
Technical field
The present invention is a kind of low noise oil pump.
Background technique
Oil pump is a kind of transferring oil or the machinery that oil carried out supercharging, is generally piston cylinder operator, namely comprises plunger and plunger bushing, and plunger is up through cam driven, the spring in the compression plunger cover simultaneously, and then spring recovers and to head on plunger descending; In plunger up-downgoing process, corresponding entrance and exit is opened, and realizes the function of transferring oil.Such low noise oil pump is owing to the effect of elasticity of demand spare, and service time is long, can affect its elasticity, thereby causes working life short, the while complex structure, and noise is larger in addition.
Summary of the invention
The purpose of this invention is to provide a kind of low noise oil pump, solve the existing large problem of low noise oil pump noise.
Purpose of the present invention is come specific implementation by the following technical programs: a kind of low noise oil pump, include two plunger bushings and bent axle, be equipped with sealed sliding plunger movingly in each plunger bushing, the end that two plungers stretch out plunger bushing is connected the central lines of two plungers with bent axle same position bearing pin; Two plunger bushing relative positions arrange, and are provided with single admission and unidirectional outlet at the top of each plunger bushing.
Further, the area of this single admission is greater than the area of unidirectional outlet.
Low noise oil pump of the present invention adopts bent axle to drive two plungers that the characteristics of motion is opposite, so that bent axle is in rotary course all the time plunger is produced active force, has avoided the unstable and noise that causes of existing single plunger; Two plungers can carry out delivering oil simultaneously simultaneously, have improved oil pump efficient; The oil-in area is made as greater than unidirectional discharge area, and the negative pressure when reducing oil-feed in the oil pump easily forms the gas degree, further overcomes the generation of noise.
Figure of description
The below is described in further detail the present invention with embodiment with reference to the accompanying drawings.
Fig. 1 is the structural representation of the described low noise oil pump of the embodiment of the invention.
Embodiment
The below adopts specific embodiment to describe the present invention by reference to the accompanying drawings:
A kind of low noise oil pump as shown in Figure 1, include two plungers 2, two plunger bushings 1 and bent axle 3, two plungers 2 seal respectively and are located at slidably in two plunger bushings 1, and same crankshaft journal carries out bearing pin and is connected on the end that two plungers 2 stretch out plunger bushing 1 and the bent axle 3.Two plungers 2 are under bent axle 3 effects, and simultaneously motion is made as coincidence with the center line of two plungers 2, and namely two plungers 2 effect in plunger bushing 1 separately is just in time opposite, can play well balance oil pump, reaches the purpose of noise reduction.
As shown in Figure 1 the area of entrance 11 is made as greater than outlet 12, when oil suction, guarantee to be full of rapidly in the pump housing oil, avoid producing negative pressure and gaseous substance occurs, prevent that the transferring oil gas mixture from easily causing noise, because same bent axle 3 can drive two plungers 2 and carry out delivering oil, improved the efficient of oil pump simultaneously.
Claims (2)
1. low noise oil pump, it is characterized in that: include two plunger bushings and bent axle, be equipped with sealed sliding plunger movingly in each plunger bushing, the end that two plungers stretch out plunger bushing is connected the central lines of two plungers with bent axle same position bearing pin; Two plunger bushing relative positions arrange, and are provided with single admission and unidirectional outlet at the top of each plunger bushing.
2. low noise oil pump as claimed in claim 1, it is characterized in that: the area of this single admission is greater than the area of unidirectional outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104779190A CN102953972A (en) | 2012-11-22 | 2012-11-22 | Low-noise oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104779190A CN102953972A (en) | 2012-11-22 | 2012-11-22 | Low-noise oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102953972A true CN102953972A (en) | 2013-03-06 |
Family
ID=47763223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104779190A Pending CN102953972A (en) | 2012-11-22 | 2012-11-22 | Low-noise oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102953972A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2641313Y (en) * | 2003-09-18 | 2004-09-15 | 郑州磨料磨具磨削研究所 | Super high pressure oil pump |
| CA2514817A1 (en) * | 2005-08-11 | 2007-02-11 | Afif Abou-Raphael | Reciprocating double acting pump |
| CN201209526Y (en) * | 2008-04-24 | 2009-03-18 | 朱昶昊 | Large displacement horizontal opposition type high pressure plunger pump |
| CN201615036U (en) * | 2009-11-20 | 2010-10-27 | 山东金鹏石化设备有限公司 | Axially-split opposite double-acting oil-water mixed transmission pump |
| CN102536720A (en) * | 2011-12-23 | 2012-07-04 | 四川盛堡机电科技有限责任公司 | Vertical double-acting spinning pump |
| CN102635527A (en) * | 2012-05-14 | 2012-08-15 | 淮南市华源矿用机电设备厂 | Novel hydraulic pump |
-
2012
- 2012-11-22 CN CN2012104779190A patent/CN102953972A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2641313Y (en) * | 2003-09-18 | 2004-09-15 | 郑州磨料磨具磨削研究所 | Super high pressure oil pump |
| CA2514817A1 (en) * | 2005-08-11 | 2007-02-11 | Afif Abou-Raphael | Reciprocating double acting pump |
| CN201209526Y (en) * | 2008-04-24 | 2009-03-18 | 朱昶昊 | Large displacement horizontal opposition type high pressure plunger pump |
| CN201615036U (en) * | 2009-11-20 | 2010-10-27 | 山东金鹏石化设备有限公司 | Axially-split opposite double-acting oil-water mixed transmission pump |
| CN102536720A (en) * | 2011-12-23 | 2012-07-04 | 四川盛堡机电科技有限责任公司 | Vertical double-acting spinning pump |
| CN102635527A (en) * | 2012-05-14 | 2012-08-15 | 淮南市华源矿用机电设备厂 | Novel hydraulic pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130306 |