CN207513817U - Based on bionical multilevel hierarchy reciprocating type plunger - Google Patents
Based on bionical multilevel hierarchy reciprocating type plunger Download PDFInfo
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- CN207513817U CN207513817U CN201720574438.XU CN201720574438U CN207513817U CN 207513817 U CN207513817 U CN 207513817U CN 201720574438 U CN201720574438 U CN 201720574438U CN 207513817 U CN207513817 U CN 207513817U
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- plunger
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- multilevel hierarchy
- sine surface
- bionical
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Abstract
The utility model discloses a kind of based on bionical multilevel hierarchy reciprocating type plunger, including plunger, level-one sine surface structure and two level sine surface structure.Axially distributed level-one sine surface, period λ on plunger1, amplitude A1；Two level sine surface, period λ are distributed on level-one sine surface2, amplitude A2；Level-one sine surface period λ1And amplitude A1Respectively it is more than or much larger than two level sine surface period λ2And amplitude A2.The utility model based on bionical multilevel hierarchy reciprocating type plunger at work, the multistage sine surface of plunger forms the gap with multilevel hierarchy feature with plunger case hole wall, it forms " tapered region ", it is supported conducive to hydrodynamic is formed, liquid film bearing capacity is improved, so as to reduce the fretting wear of plunger and plunger cylinder holes.On the other hand, " labyrinth seal " is played in the gap with multilevel hierarchy feature, is vortexed conducive to being formed, so as to reduce the leakage rate of plunger and plunger case interporal lacuna.
Description
Technical field
The utility model belongs to fluid machinery engineering and bionic field, and in particular to a kind of past based on bionical multilevel hierarchy
Oscillating plunger.
Background technology
Problem both ways is deposited between reciprocating type plunger and plunger cylinder holes to have been a concern, and is on the one hand because between the two
Relative motion and fretting wear problem occurs；On the other hand it is that there are fit clearances between the two, fluid can lead in real work
Outflow at the two fit clearance is crossed to leak so as to generate.These two aspects reason causes power loss, including frictional power loss and
Leakage power loss.To solve the problems, such as fretting wear, many researchs are using plunger or plunger cylinder holes inner wall shape is changed, so as to draw
Enter hydrldynamic pressure lubrication technology.In plunger with respect in cylinder holes reciprocatory movement, fluid is formed at plunger and plunger case interporal lacuna
Liquid film generates bearing capacity, so as to lubrication and reduction fretting wear effect.However leakage problem it is often ignored in addition
Leakage rate is increased to a certain extent.If reducing fit clearance between the two, though be conducive to reduce leakage rate, make plunger and
Liquid film is excessively thin between plunger case, and bearing capacity is relatively low, supports and lubricates it is difficult to play the role of hydrodynamic, at this time plunger and plunger
Fretting wear between cylinder becomes serious again, reduces the service life.To solve this contradiction, the utility model proposes one kind to be based on
Bionical secondary structure Novel plunger, advantageously forms hydrldynamic pressure lubrication, can reduce leakage rate, and can improve liquid film carrying
Ability reduces fretting wear, on the one hand reduces power loss, on the other hand extends the secondary service life of friction.
Multilevel hierarchy is one of main feature of nature biotechnology material.Wide coverage has shell, bone, tooth at present
Tooth, sponge gourd tendril, Boston ivy foot etc. natural biologic material, their excellent mechanical properties be derived from multilevel hierarchy
The microstructure of feature.For example, the ingredient of shell 95% is calcium carbonate, but the multilevel hierarchy feature of shell makes its shock resistance tough
Property be higher than up to 3000 times of calcium carbonate.Also someone carries out SEM scanning electron microscope microscopic observations to the keratin structure of ox horn, finds ox
The microcosmic multistage sinusoidal structured of keratin makes it have preferable shock resistance.The multilevel hierarchy of nature biotechnology material is certainly
So select, the survival of the fittest as a result, greatly improve the performance of biomaterial, be conducive to biological life in extreme natural environment
In existence, this natural multilevel hierarchy is also generally existing, and abundant material, this reality are provided for mankind's Bionic Design
This is also had benefited from based on bionical multilevel hierarchy Novel plunger with novel proposition is a kind of.
Invention content
The purpose of this utility model is that proposition is a kind of based on bionical multilevel hierarchy reciprocating type plunger, can effectively improve
Liquid film bearing capacity avoids friction pair from being in direct contact, and reduces fretting wear, and can reduce leakage rate.
The implementation method of the utility model aim, based on bionical multilevel hierarchy reciprocating type plunger, including plunger, level-one just
String curved-surface structure and two level sine surface structure are dispersed with level-one sine surface on the plunger surface in an axial direction, described
The level-one sine surface period is λ1, amplitude A1, it is dispersed with two level sine surface on the level-one sine surface, described two
The grade sine surface period is λ2, amplitude A2.The level-one sine surface period λ1It is A with amplitude1Respectively it is more than or long-range
It is λ in the two level sine surface period2It is A with amplitude2.The multistage sine surface of plunger forms more with plunger case hole wall
The scraggly gap of grade sine surface formula, and interior formation liquid film, plunger move back and forth in plunger case in this gap, liquid film exists
The multistage scraggly gap location of sine surface formula is formed a large amount of " tapered regions ", and then forms liquid film dynamic pressure support, avoids plunger
Being in direct contact between plunger case hole wall ensures that it is in Liquid Lubrication Condition, can effectively reduce plunger and plunger case hole wall
Fretting wear.On the other hand, the multistage scraggly gap of sine surface formula will play the role of " labyrinth seal ", largely disappear
Fluid dynamic energy is consumed, so as to greatly reduce the leakage of working media.
The utility model is based on bionical multilevel hierarchy reciprocating type plunger, level-one sine surface period λ1It is A with amplitude1
It can change, but ratio A1/λ1When identical, it is consistent with the influence for improving liquid film bearing capacity that leakage rate is reduced to plunger.
The utility model is based on bionical multilevel hierarchy reciprocating type plunger, two level sine surface period λ2It is A with amplitude2
It can change, but ratio λ2/A2When identical, it is consistent with the influence for improving liquid film bearing capacity that leakage rate is reduced to plunger.
The utility model reduces leakage rate based on bionical multilevel hierarchy reciprocating type plunger, two level sine surface to plunger
It is better than level-one sine surface with the influence for improving liquid film bearing capacity, this has fully demonstrated the importance of two level sine surface structure
And necessity.
The utility model can be beaten based on bionical multilevel hierarchy reciprocating type plunger, surface texture by high precision machine tool, 3D
The technologies such as print, laser or chemical etching are realized.Under the premise of machining accuracy meets, it may be considered that by the reciprocating column of multilevel hierarchy
The surface texture of plug is increased to three-level or higher series.
The beneficial effects of the utility model are the angle from nature biotechnology material multilevel hierarchy, have obtained one kind
Liquid film bearing capacity can be improved so as to reduce fretting wear but also reduce the multilevel hierarchy reciprocating type plunger of leakage rate, can be
The development of precision instruments provides technical support and reference.
Description of the drawings
Fig. 1 is three-dimensional structure and its contour curve signal of the utility model based on bionical multilevel hierarchy reciprocating type plunger
Figure.
Fig. 2 is assembling schematic diagram of the utility model based on bionical multilevel hierarchy reciprocating type plunger and plunger case.
Fig. 3 is specific embodiment of the utility model based on bionical multilevel hierarchy reciprocating type plunger.
In figure, 1- plungers, 2- level-one sine surfaces, 3- two level sine surfaces, 4- plungers, 5- multistage sine surfaces, between 6-
Gap, 7- plunger case hole walls, 8- plunger cases, the inlet and outlet of 9- working medias, 10- shafts, 11- swash plates, 12- piston shoes, 13- plungers,
14- plunger cases, 15- valve plates, 16- suction inlets, 17- outlets.
Specific embodiment
As shown in Figure 1, a kind of reciprocating type plunger based on bionical multilevel hierarchy of the utility model, including plunger 1, level-one
Sine surface structure 2 and two level sine surface structure 3 are dispersed with level-one sine surface 2, institute on the plunger surface in an axial direction
2 period of level-one sine surface stated is λ1, amplitude A1, two level sine surface 3, institute are dispersed on the level-one sine surface 2
3 period of two level sine surface stated is λ2, amplitude A2.2 period of the level-one sine surface λ1It is A with amplitude1Respectively
Be more than or much larger than 3 period of two level sine surface be λ2It is A with amplitude2。
Fig. 2 is a kind of assembling schematic diagram based on bionical multilevel hierarchy reciprocating type plunger and plunger case of the utility model,
It is convex that the multistage sine surface 5 of the reciprocating type plunger 4 of bionical multilevel hierarchy with the inner wall 7 of plunger case 8 forms multistage sine surface formula
The gap 6 of recessed injustice, and liquid film is formed in gap 6, when plunger 4 moves back and forth in plunger case 8, liquid film is with multistage
Forming quantity huge micro- " tapered region " at the gap 6 of structure feature, and then liquid film dynamic pressure support is formed, avoid plunger 4 and column
Being in direct contact between the inner wall 7 of plug cylinder 8 ensures that it is in Liquid Lubrication Condition, can effectively reduce plunger 4 and plunger case 8
Fretting wear between inner wall 7.On the other hand, the gap 6 with multilevel hierarchy feature will play " labyrinth seal ", greatly
Fluid dynamic energy in amount consumption gap 6, so as to greatly reduce the leakage of working media.9 be the inlet and outlet of working media.
Fig. 3 be specific embodiment of the utility model based on bionical multilevel hierarchy reciprocating type plunger, typical axially directed column
Plug pump, plunger 13 are interacted by piston shoes 12 and swash plate 11, and plunger case 14, plunger 13, piston shoes 12 are driven when shaft 10 rotates
It rotates together, under the action of swash plate 11, plunger 13 moves back and forth in plunger case 14.When plunger 13 in the plunger case 14 to
When left movement, i.e. plunger cavity volume increase, working media is entered by suction inlet 16 and valve plate 15 in plunger cavity；Plunger 13,
Piston shoes 12 and plunger case 14 are rotated with shaft 10, and under the effect of swash plate 11, plunger 13 moves right in plunger case 14, even if
When plunger cavity volume reduces, working media is discharged by valve plate 15 and outlet 17, and whole process completes sucking and the row of pump
Go out.
The reciprocating type plunger of the bionical multilevel hierarchy of the utility model can operate with the various volumes such as automobile engine, hydraulic pump
Formula hydraulic device, and it is small suitable for a variety of working medias, especially viscosity, it easily leaks, be not likely to produce hydrodynamic, poor lubrication
Medium, the citing that differs illustrate.What deserves to be explained is under the premise of being designed based on above-mentioned multilevel hierarchy, to solve same skill
Art problem, even if making some changes or polishing without substantive property on the utility model, the technical solution essence of use is still
As the utility model, thus its should also be as it is within the protection scope of the present utility model.
Claims (3)
1. based on bionical multilevel hierarchy reciprocating type plunger, it is characterised in that：The multilevel hierarchy of plunger surface is specifically included along axis
To the multilevel hierarchy with circumferential direction.
2. it is according to claim 1 based on bionical multilevel hierarchy reciprocating type plunger, it is sinusoidal bent to specifically include plunger, level-one
Face structure and two level sine surface structure, it is characterised in that：Level-one sine surface is dispersed on the plunger surface in an axial direction,
The level-one sine surface period is λ1, amplitude A1, two level sine surface, institute are dispersed on the level-one sine surface
The two level sine surface period stated is λ2, amplitude A2；Level-one sine surface period λ1It is A with amplitude1Respectively it is more than or long-range
It is λ in the two level sine surface period2It is A with amplitude2。
It is 3. according to claim 1 based on bionical multilevel hierarchy reciprocating type plunger, it is characterised in that：The multistage of plunger is just
The multistage scraggly gap of sine surface formula that string curved surface is formed with plunger case hole wall, and interior formation liquid film in this gap, column
Plug moves back and forth in plunger case, and liquid film is formed a large amount of " tapered regions " in the gap location with multilevel hierarchy feature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720574438.XU CN207513817U (en) | 2017-05-23 | 2017-05-23 | Based on bionical multilevel hierarchy reciprocating type plunger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720574438.XU CN207513817U (en) | 2017-05-23 | 2017-05-23 | Based on bionical multilevel hierarchy reciprocating type plunger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207513817U true CN207513817U (en) | 2018-06-19 |
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|---|---|---|---|
| CN201720574438.XU Expired - Fee Related CN207513817U (en) | 2017-05-23 | 2017-05-23 | Based on bionical multilevel hierarchy reciprocating type plunger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996369A (en) * | 2017-05-23 | 2017-08-01 | 中国矿业大学(北京) | Based on bionical multilevel hierarchy reciprocating type plunger |
-
2017
- 2017-05-23 CN CN201720574438.XU patent/CN207513817U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996369A (en) * | 2017-05-23 | 2017-08-01 | 中国矿业大学(北京) | Based on bionical multilevel hierarchy reciprocating type plunger |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180619 Termination date: 20190523 |
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| CF01 | Termination of patent right due to non-payment of annual fee |