CN109268254A - Low noise lightweight hydraulic pump plunger - Google Patents
Low noise lightweight hydraulic pump plunger Download PDFInfo
- Publication number
- CN109268254A CN109268254A CN201710586117.6A CN201710586117A CN109268254A CN 109268254 A CN109268254 A CN 109268254A CN 201710586117 A CN201710586117 A CN 201710586117A CN 109268254 A CN109268254 A CN 109268254A
- Authority
- CN
- China
- Prior art keywords
- plunger
- hydraulic pump
- light filling
- low noise
- hollow
- 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
Links
- 239000000463 material Substances 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 239000011796 hollow space material Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/001—Noise damping
Abstract
The invention discloses a kind of low noise lightweight hydraulic pump plungers.It includes plunger body, and a hollow cavity is equipped in the plunger body, and the head of the plunger body is equipped with the duct being connected to the hollow cavity；It further include a light filling body, the light filling body is filled in the hollow cavity and is fixed by positioning piece and the light filling body corresponds to the duct equipped with hollow duct.The present invention can make the bigger of the volume ratio conventional plunger of hollow cavity, and then reduce the overall weight of plunger；And light filling body can efficiently reduce the hollow volume of plunger, and can enhance the intensity of plunger hollow space, so that reaching not only reduces the dead volume of plunger, reduces operation noise, but also be able to achieve the lightweight of plunger, extend the purpose of plunger service life.
Description
Technical field
The present invention relates to a kind of low noise lightweight hydraulic pump plungers.
Background technique
Pluger type hydraulic pump is an important device of hydraulic system, it is moved back and forth in cylinder body by plunger, is made close
The volume of envelope working volumes changes to realize oil suction and pressure oil.As shown in Figure 1, existing hydraulic pump plunger has a column
Plug body 1, the plunger body is interior to be equipped with a hollow cavity 11, and the head 12 of the plunger body is equipped with to be connected to the hollow cavity
Duct 121.The plunger of this kind of structure can have the intracorporal hydraulic oil of cylinder and not be completely exhausted out in the reciprocating motion of cylinder body
In the case where the new hydraulic oil of inspiration again, causing some oil liquid, here it is so-called choke-out appearances always wherein
Product.Biggish dead volume certainly will will increase the noise of plunger pump.Therefore, existing hydraulic pump plunger design is to try to reduce column
The size of hollow cavity is filled in, but if unlimited reduction will definitely increase the weight of plunger again, and then increase plunger motion is used
Property amount reduces the service life of plunger so that plunger be made to be prone to wear.
Summary of the invention
The purpose of the present invention is to provide a kind of low noise lightweight hydraulic pump plungers, effectively to solve the prior art not
Foot place.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
Low noise lightweight hydraulic pump plunger, including plunger body, the plunger body is interior to be equipped with a hollow cavity, the column
The head of plug body is equipped with the duct being connected to the hollow cavity；It further include a light filling body, the light filling body filling
It is fixed in the hollow cavity and through positioning piece and the light filling body corresponds to the duct equipped with hollow hole
Road.
Preferably, the light filling body is using density less than 3.0 × 103kg/m3, intensity be not less than 300MPa, bullet
Property modulus be not less than 2.1 × 104Obturator made of the material of MPa.Further preferably, the light filling body is using aluminium
Obturator made of expecting.
Preferably, the hollow cavity is divided into path hollow section and major diameter hollow section, the path hollow section and the hole
Road connection.
Preferably, the peripheral side that the light filling body is located at major diameter hollow section equidistantly offers several rings along axial direction
Connected in star.
Preferably, the light filling body is an integral structure or segmentation structure.
Preferably, the hollow cavity is equipped with circlip mounting groove close to the tail portion of plunger body and the locating piece is card
Spring.
The present invention can make the bigger of the volume ratio conventional plunger of hollow cavity by using above structure, and then reduce column
The overall weight of plug；And light filling body can efficiently reduce the hollow volume of plunger, and can enhance plunger hollow space
Intensity so that reaching not only reduces the dead volume of plunger, reduces operation noise, but also is able to achieve the lightweight of plunger, extends
The purpose of plunger service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing hydraulic pump plunger.
Fig. 2 is schematic cross-sectional view of the invention.
Fig. 3 is structural exploded view of the invention.
In figure:
1-plunger body；11-hollow cavities；111-path hollow sections；112-major diameter hollow sections；12-plunger bodies it
Head；121-ducts；The tail portion of 13-plunger bodies；131-circlip mounting grooves；2-light filling bodies；21-hollow ducts；
22-annular grooves；3-circlips.
Now in conjunction with drawings and examples, invention is further described in detail.
Specific embodiment
As shown in Figures 2 and 3, low noise lightweight hydraulic pump plunger of the present invention, mainly by plunger body 1, light
Matter obturator 2 and circlip 3 form.
The bigger hollow cavity 11 of the hollow cavity of a volume ratio conventional plunger is equipped in the plunger body 1, this is hollow
Chamber is divided into path hollow section 111 and major diameter hollow section 112.The head 12 of plunger body is equipped with the path hollow section with hollow cavity
The duct 121 of 111 connections.Hollow cavity is equipped with a circlip mounting groove 131 close to the tail portion of plunger body 13.
The light filling body 2 is that filling is accommodated in hollow cavity 11, corresponds to duct 121 and is equipped with hollow duct
21.The peripheral side that light filling body 2 is located at major diameter hollow section 121 equidistantly offers several annular grooves 22 along axial direction, thus
Constitute a similar cellular structure.In addition, light filling body 2 of the invention is preferably using density less than 3.0 × 103kg/
m3, intensity not less than 300MPa, elasticity modulus be not less than 2.1 × 104The material of MPa is made, and the present embodiment is using aluminum material.
In addition, integral structure or segmentation structure can be used in light filling body of the invention, the present embodiment is an integral structure.
After light filling body 2 is assembled into plunger body 1, circlip 3 is placed in circlip mounting groove 131, to realize
Positioning to light filling body.
The present invention has smaller dead volume relative to existing hydraulic pump plunger, and the operation for reducing hydraulic pump is made an uproar
Sound.And the setting of light filling body can be supplemented because the hollow volume increase due to of plunger leads to the low-intensity of wall thickness reduction, to realize
In the case where same plunger weight, there is lesser hollow volume.
Claims (7)
1. low noise lightweight hydraulic pump plunger, including plunger body, the plunger body is interior to be equipped with a hollow cavity, the plunger
The head of ontology is equipped with the duct being connected to the hollow cavity, which is characterized in that further includes a light filling body, the lightweight is filled out
Body is filled to be filled in the hollow cavity and be fixed by positioning piece and the light filling body corresponds to the duct and is equipped with
Hollow duct.
2. low noise lightweight hydraulic pump plunger according to claim 1, which is characterized in that the light filling body is to adopt
With density less than 3.0 × 103kg/m3, intensity not less than 300MPa, elasticity modulus be not less than 2.1 × 104Made of the material of MPa
Obturator.
3. low noise lightweight hydraulic pump plunger according to claim 2, which is characterized in that the light filling body is to adopt
The obturator made of aluminum material.
4. low noise lightweight hydraulic pump plunger according to claim 1, which is characterized in that the hollow cavity is divided into path
Hollow section and major diameter hollow section, the path hollow section and the hole link.
5. low noise lightweight hydraulic pump plunger according to claim 4, which is characterized in that the light filling body is located at
The peripheral side of major diameter hollow section equidistantly offers several annular grooves along axial direction.
6. low noise lightweight hydraulic pump plunger according to claim 1, which is characterized in that the light filling body is one
Body formula structure or segmentation structure.
7. low noise lightweight hydraulic pump plunger according to claim 1, which is characterized in that the hollow cavity is close to plunger
The tail portion of ontology is equipped with circlip mounting groove and the locating piece is circlip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710586117.6A CN109268254A (en) | 2017-07-18 | 2017-07-18 | Low noise lightweight hydraulic pump plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710586117.6A CN109268254A (en) | 2017-07-18 | 2017-07-18 | Low noise lightweight hydraulic pump plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109268254A true CN109268254A (en) | 2019-01-25 |
Family
ID=65152663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710586117.6A Pending CN109268254A (en) | 2017-07-18 | 2017-07-18 | Low noise lightweight hydraulic pump plunger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109268254A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237153A (en) * | 2020-03-21 | 2020-06-05 | 哈尔滨工程大学 | Axial plunger pump plunger with stepped multiple grooves |
| CN111237152A (en) * | 2020-03-21 | 2020-06-05 | 哈尔滨工程大学 | Axial plunger pump plunger with groove-pit combined type texture |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203584787U (en) * | 2013-12-08 | 2014-05-07 | 浙江沃尔液压科技有限公司 | Plunger for high-pressure plunger pump |
| CN203717328U (en) * | 2014-01-24 | 2014-07-16 | 上海高压油泵厂有限公司 | Plunger piston structure |
| CN206144775U (en) * | 2016-09-19 | 2017-05-03 | 佛山市科达液压机械有限公司 | Novel plunger and novel plunger pump |
| CN207004795U (en) * | 2017-07-18 | 2018-02-13 | 佛山市科达液压机械有限公司 | Low noise lightweight hydraulic pump plunger |
-
2017
- 2017-07-18 CN CN201710586117.6A patent/CN109268254A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203584787U (en) * | 2013-12-08 | 2014-05-07 | 浙江沃尔液压科技有限公司 | Plunger for high-pressure plunger pump |
| CN203717328U (en) * | 2014-01-24 | 2014-07-16 | 上海高压油泵厂有限公司 | Plunger piston structure |
| CN206144775U (en) * | 2016-09-19 | 2017-05-03 | 佛山市科达液压机械有限公司 | Novel plunger and novel plunger pump |
| CN207004795U (en) * | 2017-07-18 | 2018-02-13 | 佛山市科达液压机械有限公司 | Low noise lightweight hydraulic pump plunger |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111237153A (en) * | 2020-03-21 | 2020-06-05 | 哈尔滨工程大学 | Axial plunger pump plunger with stepped multiple grooves |
| CN111237152A (en) * | 2020-03-21 | 2020-06-05 | 哈尔滨工程大学 | Axial plunger pump plunger with groove-pit combined type texture |
| CN111237152B (en) * | 2020-03-21 | 2021-12-21 | 哈尔滨工程大学 | Axial plunger pump plunger with groove-pit combined type texture |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |