CN107461443A - A kind of single hole piston-type hydraulic buffer - Google Patents
A kind of single hole piston-type hydraulic buffer Download PDFInfo
- Publication number
- CN107461443A CN107461443A CN201710543880.0A CN201710543880A CN107461443A CN 107461443 A CN107461443 A CN 107461443A CN 201710543880 A CN201710543880 A CN 201710543880A CN 107461443 A CN107461443 A CN 107461443A
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- CN
- China
- Prior art keywords
- piston
- parts
- spill port
- cylinder body
- axle sleeve
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L15/00—Compositions of rubber derivatives
- C08L15/005—Hydrogenated nitrile rubber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/362—Combination of sealing and guide arrangements for piston rods
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of single hole piston-type hydraulic buffer, including cylinder body, one end of the cylinder body is provided with cylinder head, and the other end is sequentially installed with axle sleeve, oil sealing and cylinder cap, sponge is equipped with the axle sleeve；Piston and piston rod are installed in the middle part of the cylinder body；Spring is installed, the inner of the piston rod is resisted against the end of the piston, and its outer end is run through axle sleeve, oil sealing and cylinder cap and stretched out outside cylinder body to be connected with cylinder cap between the piston and cylinder head；One is provided with the central axis of the piston and runs through the piston and the main spill port for connecting piston or so cavity, the main spill port is in hierarchic structure, and an oil return steel ball is provided with the hierarchic structure.The piston of the present invention only sets a main spill port wherein on mandrel line, when returning, fluid will not change such piston to the resistance of piston, and then make it that piston operation is more steady, improves the job stability of buffer.
Description
Technical field
The present invention relates to a kind of single hole piston-type hydraulic buffer.
Background technology
Buffer, it is under the premise of industrial equipment runnability is not influenceed, eliminates to increase production efficiency, improve operation speed
Impact, vibrations, noise, guarantee safety, optimize production environment caused by degree.In the prior art, conventional piston structure has more
Individual spill port, after so when wherein one or more spill ports block the problem of, the oil return resistance of piston will be caused to send out
It is raw to change, and then make it that piston operation is unstable, the job stability of buffer is reduced, and process multiple spill ports can also make
High into processing technology difficulty, increase processing cost is big.
The content of the invention
The defects of the present invention seeks to exist for prior art, is provided as a kind of single hole piston-type hydraulic buffer.
The present invention to achieve the above object, adopts the following technical scheme that：A kind of single hole piston-type hydraulic buffer, including cylinder
Body, one end of the cylinder body are provided with cylinder head, and the other end is sequentially installed with axle sleeve, oil sealing and cylinder cap, is equipped with the axle sleeve
Sponge；Piston and piston rod are installed in the middle part of the cylinder body；Spring is installed between the piston and cylinder head, the piston rod
The inner is resisted against the end of the piston, and its outer end is run through axle sleeve, oil sealing and cylinder cap and stretched out outside cylinder body to be connected with cylinder cap；It is described
One is provided with the central axis of piston and runs through the piston and the main spill port for connecting piston or so cavity, the main spill port
In hierarchic structure, and an oil return steel ball is provided with the hierarchic structure；The side of the main spill port, which is additionally provided with, to be aided in back
Oilhole；Wherein, the aperture of the auxiliary spill port is 1/6th of the aperture of main spill port；Wherein, the raw material of the oil sealing
Include by weight：20 parts of hydrogenated nitrile-butadiene rubber, 17 parts of para-aramid fiber, 12 parts of boron phenolic, 1 part of stearic acid, zinc oxide 2
Part, 3 parts of silane coupler, cumyl peroxide 2-3 parts, Cosan 0.2-0.3 parts, dibenzothiazyl disulfide 1.5-2.5
Part, 15 parts of ACM, 16 parts of fluorubber, 14 parts of maleic acid tin octylate, 3 parts of age resistor and Nano carbon white reinforcing agent
2 parts.
Further, the left end of the piston is provided with boss, and the spring is fastened on the boss.
Further, the right-hand member of the piston is provided with the oil-recovery tank connected with the main spill port.
Further, external screw thread is provided with the outer circumference of the cylinder body, adjusting nut is provided with the external screw thread.
Further, be provided with the first O-ring seal between the cylinder head and cylinder body, the axle sleeve and the piston rod it
Between be provided with the second O-ring seal, be provided with the 3rd O-ring seal between the axle sleeve and oil sealing, the cylinder cap and the cylinder
The 4th O-ring seal is provided between body.
Beneficial effects of the present invention：The piston of the present invention only sets a main spill port wherein on mandrel line, so living
When returning, fluid will not change plug to the resistance of piston, and then make it that piston operation is more steady, improve buffer
Job stability, and due to only machined a main spill port, the processing technology difficulty of piston is greatly reduced, reduce and add
Work cost., can be with addition, the auxiliary spill port set has when prevent that the problem of buffer invalidation from occurring suddenly in main spill port
Ensure that the oil return of fluid is more smooth.
Brief description of the drawings
Fig. 1 the structural representation of present invention.
Embodiment
Shown in Fig. 1, it is related to a kind of single hole piston-type hydraulic buffer, including cylinder body 1, one end of the cylinder body 1 is provided with
Cylinder head 2, the other end are sequentially installed with axle sleeve 3, oil sealing 4 and cylinder cap 5, sponge 6 are equipped with the axle sleeve 3；The middle part of cylinder body 1
Piston 7 and piston rod 8 are installed；Spring 9 is installed, the inner of the piston rod 8 is resisted against between the piston 7 and cylinder head 2
The end of the piston 7, its outer end is run through axle sleeve 3, oil sealing 4 and cylinder cap 5 and stretched out outside cylinder body 1 to be connected with cylinder cap 10；The work
One is provided with the central axis of plug 7 through the piston 7 and returns the main spill port 11 of the cavity of piston 7 or so connection, the master
Oilhole 11 is in hierarchic structure, and an oil return steel ball 12 is provided with the hierarchic structure；The side of the main spill port 11 is also set
It is equipped with auxiliary spill port 13；Wherein, the aperture of the auxiliary spill port 13 is 1/6th of the aperture of main spill port.
On the basis of above-mentioned technical proposal, in order to improve the oil resistant of oil sealing, resistance to oxidation and resistance to elevated temperatures, the present invention
In, the raw material of above-mentioned oil sealing includes by weight：20 parts of hydrogenated nitrile-butadiene rubber, 17 parts of para-aramid fiber, 12 parts of boron phenolic, firmly
1 part of resin acid, 2 parts of zinc oxide, 3 parts of silane coupler, cumyl peroxide 2-3 parts, Cosan 0.2-0.3 parts, curing two
Benzothiazole 1.5-2.5 parts, 15 parts of ACM, 16 parts of fluorubber, 14 parts of maleic acid tin octylate, 3 parts of age resistor and
2 parts of Nano carbon white reinforcing agent.In the present invention, due to being used as the using hydrogenated nitrile-butadiene rubber, para-aramid fiber and boron phenolic
One major ingredient, makes the oil sealing material of the present invention have an excellent oil resistance, good seal performance, due to para-aramid fiber have compared with
Good heat resistance and dimensional stability, also with chemical resistance, high-insulativity, high tensile strength and initial elastic mould
Amount, the heat resistance and tensile property of the present invention greatly improved.Due to misery using ACM, fluorubber and Malaysia
Ji Xi makes the oil sealing material of the present invention have abrasion loss low as the second major ingredient, and coefficient of friction is small, and mechanical property is good, does not ftracture,
The effect of mating plate is not worn.
Wherein, the left end of the piston 7 is provided with boss 71, and the spring 9 is fastened on the boss 71.So can
So that the connection between piston 7 and spring is relatively reliable.
Wherein, the right-hand member of the piston 7 is provided with the oil-recovery tank 72 connected with the main spill port 11.Oil-recovery tank 72 is set
Put, it is more smooth when enabling to fluid oil return.
Wherein, external screw thread 21 is provided with the outer circumference of the cylinder body 1, adjusting nut is provided with the external screw thread 21
22.Adjusting nut 22 is set on cylinder body 1, the position of cylinder body 1 can be facilitated to fix.
Wherein, the first O-ring seal 31, the axle sleeve 3 and the piston rod 8 are provided between the cylinder head 2 and cylinder body 1
Between be provided with the second O-ring seal 32, the 3rd O-ring seal 33, the cylinder cap 5 are provided between the axle sleeve 3 and oil sealing 4
The 4th O-ring seal 34 is provided between the cylinder body 1.
In use, external impetus driving piston rod 8 is moved to the left, the inner of piston rod 8 offsets with piston 7, promotes piston 7
It is moved to the left, spring 9 compresses, the life extruding of the fry dried food ingredients of the left end lumen portion of piston 7, and now fluid is along piston 7 and the inner chamber of cylinder body 1
The gap of body enters the right-hand member of piston 7, and the oil pressure resistance of fluid gradually increases so that the both ends oil pressure amplitude of variation of piston 7 becomes
It is small.A fluid part into the right-hand member of piston 7 is absorbed by sponge 6, and another part enters main spill port 11, oil along oil-recovery tank 72
Liquid squeezes to the right-hand member of piston 7 and pushes away and steel ball 12 is extruded, and when pressure is larger, steel ball 12 is open, appropriate to reduce right side oil pressure；
When piston rod 8 moves right, the oil pocket increase of the left end of piston 7, oil pressure reduces, and the fluid of its right-hand member enters a left side from spill port 11
End, and under the elastic force effect of spring 9, promote piston 7 to reset.
During present invention design, multiple spill ports in traditional piston 7 are made into design a list on mandrel line wherein
Only spill port, when returning, fluid will not be changed such piston 7 to the resistance of piston 7, and then piston 7 is run
It is more steady, improve the job stability of buffer.In addition, it is unbalanced that oil liquid resistance easily occurs in the original spill port of elimination
Meanwhile also individually open up a small auxiliary spill port 72, the smooth oil return of piston is ensured with this, prevents main spill port from going out suddenly
Now block and caused by buffer invalidation the problem of.After the structural change of above-mentioned piston, to the processing request of piston spill port significantly
Reduce, but still should be noted that piston needs the oil return speed reached, therefore the auxiliary spill port opened up on piston for oil return of meeting an urgent need
Diameter must reach given requirements, the aperture that auxiliary spill port 13 is required in the present invention is six points of the aperture of main spill port
One of.After changing piston structure, because the simplification of processing technology and flow is effectively improved production capacity.And make assembling
Technique is simplified, and is shortened the process-cycle, is effectively improved yield.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (5)
- A kind of 1. single hole piston-type hydraulic buffer, it is characterised in that including cylinder body, one end of the cylinder body is provided with cylinder head, The other end is sequentially installed with axle sleeve, oil sealing and cylinder cap, and sponge is equipped with the axle sleeve；Be provided with the middle part of the cylinder body piston and Piston rod；Spring is installed, the inner of the piston rod is resisted against the end of the piston, outside it between the piston and cylinder head End is run through axle sleeve, oil sealing and cylinder cap and stretched out outside cylinder body to be connected with cylinder cap；One is provided with the central axis of the piston to run through The piston and the main spill port for connecting piston or so cavity, the main spill port is in hierarchic structure, and in the hierarchic structure It is provided with an oil return steel ball；The side of the main spill port is additionally provided with auxiliary spill port；Wherein, the hole of the auxiliary spill port Footpath is 1/6th of the aperture of main spill port；Wherein, the raw material of the oil sealing includes by weight：Hydrogenated nitrile-butadiene rubber 20 Part, 17 parts of para-aramid fiber, 12 parts of boron phenolic, 1 part of stearic acid, 2 parts of zinc oxide, 3 parts of silane coupler, peroxidating diisopropyl Benzene 2-3 parts, Cosan 0.2-0.3 parts, dibenzothiazyl disulfide 1.5-2.5 parts, 15 parts of ACM, fluorubber 16 Part, 2 parts of 14 parts of maleic acid tin octylate, 3 parts of age resistor and Nano carbon white reinforcing agent.
- 2. a kind of single hole piston-type hydraulic buffer as claimed in claim 1, it is characterised in that the left end of the piston is set There is boss, the spring is fastened on the boss.
- 3. a kind of single hole piston-type hydraulic buffer as claimed in claim 1, it is characterised in that the right-hand member of the piston is set There is the oil-recovery tank connected with the main spill port.
- 4. a kind of single hole piston-type hydraulic buffer as claimed in claim 1, it is characterised in that in the outer circumference of the cylinder body External screw thread is provided with, adjusting nut is provided with the external screw thread.
- 5. a kind of single hole piston-type hydraulic buffer as claimed in claim 1, it is characterised in that between the cylinder head and cylinder body The first O-ring seal is provided with, the second O-ring seal, the axle sleeve and oil are provided between the axle sleeve and the piston rod The 3rd O-ring seal is provided between envelope, the 4th O-ring seal is provided between the cylinder cap and the cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710543880.0A CN107461443A (en) | 2017-07-05 | 2017-07-05 | A kind of single hole piston-type hydraulic buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710543880.0A CN107461443A (en) | 2017-07-05 | 2017-07-05 | A kind of single hole piston-type hydraulic buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107461443A true CN107461443A (en) | 2017-12-12 |
Family
ID=60543831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710543880.0A Pending CN107461443A (en) | 2017-07-05 | 2017-07-05 | A kind of single hole piston-type hydraulic buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107461443A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4310148A (en) * | 1978-11-18 | 1982-01-12 | Stabilus Gmbh | Cylinder-and-piston device |
| CN201636259U (en) * | 2010-01-29 | 2010-11-17 | 宁波亚德客自动化工业有限公司 | Adjustable hydraulic damper |
| CN201671996U (en) * | 2010-01-29 | 2010-12-15 | 宁波亚德客自动化工业有限公司 | Adjustable hydraulic buffer |
| CN104610604A (en) * | 2015-01-30 | 2015-05-13 | 柳州市颖航汽配有限公司 | Oil resistant rubber material and preparation method thereof |
| CN104989778A (en) * | 2015-07-21 | 2015-10-21 | 无锡比德希减震阻尼技术有限公司 | Novel buffer |
| CN106763428A (en) * | 2017-03-07 | 2017-05-31 | 汽-大众汽车有限公司 | A kind of double offset frequency mutative damp shock absorbers of passive type |
-
2017
- 2017-07-05 CN CN201710543880.0A patent/CN107461443A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4310148A (en) * | 1978-11-18 | 1982-01-12 | Stabilus Gmbh | Cylinder-and-piston device |
| CN201636259U (en) * | 2010-01-29 | 2010-11-17 | 宁波亚德客自动化工业有限公司 | Adjustable hydraulic damper |
| CN201671996U (en) * | 2010-01-29 | 2010-12-15 | 宁波亚德客自动化工业有限公司 | Adjustable hydraulic buffer |
| CN104610604A (en) * | 2015-01-30 | 2015-05-13 | 柳州市颖航汽配有限公司 | Oil resistant rubber material and preparation method thereof |
| CN104989778A (en) * | 2015-07-21 | 2015-10-21 | 无锡比德希减震阻尼技术有限公司 | Novel buffer |
| CN106763428A (en) * | 2017-03-07 | 2017-05-31 | 汽-大众汽车有限公司 | A kind of double offset frequency mutative damp shock absorbers of passive type |
Non-Patent Citations (1)
| Title |
|---|
| 唐磊等: "《耐高温隔热材料技术》", 31 July 2013 * |
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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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171212 |
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| RJ01 | Rejection of invention patent application after publication |