CN108825701A - The oil buffer of tapered piston structure - Google Patents
The oil buffer of tapered piston structure Download PDFInfo
- Publication number
- CN108825701A CN108825701A CN201810979429.8A CN201810979429A CN108825701A CN 108825701 A CN108825701 A CN 108825701A CN 201810979429 A CN201810979429 A CN 201810979429A CN 108825701 A CN108825701 A CN 108825701A
- Authority
- CN
- China
- Prior art keywords
- oil
- pressure chamber
- oil pressure
- tapered piston
- face
- 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
- 239000000872 buffer Substances 0.000 title claims abstract description 29
- 230000003139 buffering effect Effects 0.000 claims abstract description 24
- 230000006835 compression Effects 0.000 claims abstract description 21
- 238000007906 compression Methods 0.000 claims abstract description 21
- 238000000605 extraction Methods 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 9
- 229920000742 Cotton Polymers 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000003247 decreasing effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 111
- 239000010720 hydraulic oil Substances 0.000 description 8
- 238000013016 damping Methods 0.000 description 2
- 239000010734 process oil Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
-
- 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
-
- 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
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body
- F16F9/3481—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body characterised by shape or construction of throttling passages in piston
-
- 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
- F16F9/363—Combination of sealing and guide arrangements for piston rods the guide being mounted between the piston and the sealing, enabling lubrication of the guide
Abstract
The present invention provides the oil buffers of tapered piston structure, and making the variation of oil extraction sectional area is the process continuously gradually successively decreased, and extraneous mobile object can be with uniformly retarded motion to stopping, and the buffering effect of buffer reaches ideal slowing effect.It includes outer shell, outer cover, outer shell is internally provided with the first oil pressure chamber, second oil pressure chamber, outside at the end stop of the second oil pressure chamber is the first oil pressure chamber, the corresponding opening end cap far from the second oil pressure chamber of the first oil pressure chamber is equipped with the outer cover, a tapered piston is disposed on the end face of outer cover the second oil pressure chamber of direction, direction of the tapered piston from close to the second oil pressure chamber to far from the second oil pressure chamber is flared setting, the major diameter end face of the tapered piston is fixed in the inner end of oil compression rod, the outer end of the oil compression rod is exposed behind the straight-line guidance hole of the outer cover, reset spring is disposed between the inner face of the second oil pressure chamber and the path end face of the tapered piston.
Description
Technical field
The present invention relates to the technical fields of oil buffer structure, the specially oil buffer of tapered piston structure.
Background technique
Oil buffer is the element applied in automated machine operation, can reduce the shake generated during mechanical work
Dynamic and noise, makes machinery improve efficiency increase production capacity, and effectively extending service life of a machine reduces maintenance cost；Its working principle is that will move
Kinetic energy caused by animal body is converted to thermal energy and is released in atmosphere.
Existing oil buffer is specially oil extraction pore structure, when buffer work by progressively closing off outage come real
The variation of existing damping force.The disadvantage is that due to outage be distributed on interior casing wall in spacing, Gu the variation of its oil drain quantity is disconnected
Discontinuously continue, the damping force of generation has fluctuation, and buffering effect is unstable.
Summary of the invention
In view of the above-mentioned problems, making oil extraction sectional area the present invention provides the oil buffer of tapered piston structure
Variation is the process continuously gradually successively decreased, and extraneous mobile object can be with uniformly retarded motion to stopping, the buffering effect of buffer
Reach ideal slowing effect.
The oil buffer of tapered piston structure, it is characterised in that：It includes outer shell, outer cover, and the inside of the outer shell is set
It is equipped with the first oil pressure chamber, the second oil pressure chamber, the outside at the end stop of the second oil pressure chamber is the first oil pressure chamber, institute
The corresponding opening end cap far from the second oil pressure chamber of the first oil pressure chamber is stated equipped with the outer cover, the outer cover is towards described the
Be disposed with a tapered piston on the end face of two oil pressure chambers, the tapered piston from close to the second oil pressure chamber to far from described the
The direction of two oil pressure chambers is flared setting, and the major diameter end face of the tapered piston is fixed in the inner end of oil compression rod, the oil compression rod
Outer end exposed, the inner face of the second oil pressure chamber and path of the tapered piston behind the straight-line guidance hole of the outer cover
Reset spring is disposed between end face, the diameter of the path end face is less than the internal diameter at the end stop, the major diameter end face
Diameter be greater than the internal diameter at the end stop, at the end stop of the conical surface of the tapered piston and the second oil pressure chamber
Between formed oil extraction section.
It is further characterized by：
The first oil pressure chamber, the second oil pressure chamber are circular cylindrical cavity, and the internal diameter of the first oil pressure chamber is greater than described
The internal diameter of second oil pressure chamber；
The region that the outer cover is located at the inside of the outer shell is provided with an annular groove, is filled with pressure accumulation in the annular groove
Cotton, the outer ring surface of the accumulator cotton are close to the corresponding region inner wall arrangement of the outer shell；
O-ring is packaged between the capping end of the outer cover and the end anchor ring of the outer shell；
The straight-line guidance hole is provided with interior concave ring groove, and oil sealing, the inner ring of the oil sealing are disposed in the interior concave ring groove
It is close to the corresponding region arrangement of the oil compression rod in face；
The inner face corresponding to the second oil pressure chamber of the outer shell is provided with buffering oil duct, and interference is matched in the buffering oil duct
Conjunction is provided with the first steel ball, and the endface position corresponding to the outer shell of the buffering oil duct is packaged with set screw, ensures
Internal hydraulic oil does not leak；
The path end face center of the tapered piston is recessed buffering oil pocket, the buffering oil pocket towards the outer cover
Position be provided with runner, the buffering oil pocket, runner starting point between be disposed with the second steel ball, the end of the runner is logical
It crosses radial line and is connected to the first oil pressure chamber；When tapered piston is mobile to the second oil pressure chamber, the second steel ball can block stream
Road does not allow hydraulic oil to pass through, when reset, when tapered piston is mobile to the first oil pressure chamber, the second steel ball can enter buffering oil pocket,
And then runner is opened, allow hydraulic oil to come back to the second oil pressure chamber from runner, the second steel ball plays an one-way sealing effect；
First steel ball, the second steel ball are chromium steel pearl；
The straight-line guidance hole is located at the axial centre location arrangements of the outer cover, and the inner end of the oil compression rod is affixed or one
Body is connected to the center of the major diameter end face of the tapered piston；
The spring tip is provided on the path end face, the inner face of the second oil pressure chamber is provided with spring positioning protrusion,
One end of reset spring is set in the spring positioning protrusion, and the other end of the reset spring is fixed in the spring tip.
Oil extraction is formed after above-mentioned technical side, between the end stop of the conical surface of tapered piston and the second oil pressure chamber to cut
Face, when the non-stress of oil compression rod, the oil extraction sectional area at the end stop of the conical surface of tapered piston and the second oil pressure chamber is maximum, when
When extraneous mobile object hits oil compression rod, the inner face that oil compression rod drives tapered piston towards the second oil pressure chamber is mobile, and taper is living
It forms oil extraction area of section between the end stop of the conical surface of plug and the second oil pressure chamber to gradually become smaller, so that outer cylinder interior second
The descending sectional area discharge of the hydraulic oil of oil pressure chamber, the variation of this process oil extraction sectional area is the mistake continuously gradually successively decreased
Journey, rather than in existing structure outage intermittent variation, buffer linearly slows down, so that extraneous mobile object can be with even
Retarded motion to stopping, the buffering effect of buffer reaches ideal slowing effect.
Detailed description of the invention
Fig. 1 is section view figure structure schematic representation of the invention (oil extraction sectional area is maximum)；
Title corresponding to serial number is as follows in figure：
Outer shell 1, end anchor ring 11, buffering oil duct 12, the first steel ball 13, set screw 14, outer cover 2, straight-line guidance hole 21,
Annular groove 22, capping end 23, interior concave ring groove 24, oil sealing 25, the first oil pressure chamber 3, the second oil pressure chamber 4,41, inner end at end stop
Face 42, spring positioning protrusion 43, tapered piston 5, major diameter end face 51, path end face 52, the conical surface 53, buffering oil pocket 54, the second steel
Pearl 55, the spring tip 56, runner 57, radial line 58, oil compression rod 6, reset spring 7, oil extraction section 8, accumulator cotton 9, o-ring 10.
Specific embodiment
The oil buffer of tapered piston structure, is shown in Fig. 1：It includes outer shell 1, outer cover 2, and outer shell 1 is internally provided with
One oil pressure chamber 3, the second oil pressure chamber 4,41 outside is the first oil pressure chamber 3, the first oil pressure chamber at the end stop of the second oil pressure chamber 4
The 3 corresponding opening end cap far from the second oil pressure chamber 4 is equipped with outer cover 2, and outer cover 2 is towards being disposed on the end face of the second oil pressure chamber 4
One tapered piston 5, direction of the tapered piston 5 from close to the second oil pressure chamber 4 to far from the second oil pressure chamber 4 are flared setting, and taper is living
The major diameter end face 51 of plug 5 is fixed in the inner end of oil compression rod 6, and the outer end of oil compression rod 6 is outer behind the straight-line guidance hole 21 of outer cover 2
Dew, is disposed with reset spring 7 between the inner face 42 of the second oil pressure chamber 4 and the path end face 52 of tapered piston 5, path end face 52
Diameter is less than at end stop 41 internal diameter, and the diameter of major diameter end face 51 is greater than at end stop 41 internal diameter, tapered piston 5
Oil extraction section 8 is formed between 41 at the end stop of the conical surface 53 and the second oil pressure chamber 4.
In specific embodiment, the first oil pressure chamber 3, the second oil pressure chamber 4 are circular cylindrical cavity, the internal diameter of the first oil pressure chamber 3
Greater than the internal diameter of the second oil pressure chamber 4；
The region that outer cover 2 is located at the inside of outer shell 1 is provided with an annular groove 22, is filled with accumulator cotton 9 in annular groove 22, stores
The outer ring surface of cotton 9 is pressed to be close to the corresponding region inner wall arrangement of outer shell 1；
O-ring 10 is packaged between the capping end 23 of outer cover 2 and the end anchor ring 11 of outer shell 1；
Straight-line guidance hole 21 is provided with interior concave ring groove 24, and oil sealing 25, the inner ring surface of oil sealing 25 are disposed in interior concave ring groove 24
It is close to the corresponding region arrangement of oil compression rod 6；
The inner face corresponding to the second oil pressure chamber 4 of outer shell 1 is provided with buffering oil duct 12, interference fit in buffering oil duct 12
It is provided with the first steel ball 13, the endface position corresponding to outer shell 1 of buffering oil duct 12 is packaged with set screw 14, ensures inside
Hydraulic oil do not leak；
52 center of path end face of tapered piston 5 is recessed buffering oil pocket 54, buffers the position towards outer cover 2 of oil pocket 54
It installs and is equipped with runner 57, buffer and be disposed with the second steel ball 55 between the starting point of oil pocket 54, runner 57, the end of runner 57 passes through
Radial line 58 is connected to the first oil pressure chamber 3；When tapered piston 5 is mobile to the second oil pressure chamber 4, the second steel ball 55 can block stream
Road 57, does not allow hydraulic oil to pass through, and when reset, when tapered piston 5 is mobile to the first oil pressure chamber 3, the second steel ball 55 can enter slow
It rushes oil pocket 54 and then opens runner 57, allow hydraulic oil to come back to the second oil pressure chamber 4 from runner, the second steel ball 55 plays one
Individual event sealing effect；
First steel ball 13, the second steel ball 55 are chromium steel pearl；
Straight-line guidance hole 21 is located at the axial centre location arrangements of outer cover 2, and the inner end of oil compression rod 6 is affixed or is integrally connected to
The center of the major diameter end face 51 of tapered piston 5；
The spring tip 56 is provided on path end face 52, the inner face 42 of the second oil pressure chamber 4 is provided with spring positioning protrusion 43,
One end of reset spring 7 is set in spring positioning protrusion 43, and the other end of reset spring 7 is fixed in the spring tip 56.
Oil extraction section is formed between the end stop of the conical surface of tapered piston and the second oil pressure chamber, when the non-stress of oil compression rod
When, the oil extraction sectional area at the end stop of the conical surface of tapered piston and the second oil pressure chamber is maximum, when extraneous mobile object is hit
When oil compression rod, the inner face that oil compression rod drives tapered piston towards the second oil pressure chamber is mobile, the conical surface of tapered piston and the second oil
Press chamber end stop between formed oil extraction area of section gradually become smaller so that the hydraulic oil of outer cylinder interior the second oil pressure chamber by
Small sectional area discharge is arrived greatly, and the variation of this process oil extraction sectional area is the process continuously gradually successively decreased, rather than existing structure
The intermittent variation of middle outage, buffer linearly slow down, so that extraneous mobile object can extremely be stopped with uniformly retarded motion,
The buffering effect of buffer reaches ideal slowing effect.
Specific embodiments of the present invention are described in detail above, but content is only the preferable implementation of the invention
Example, should not be considered as limiting the invention the practical range of creation.It is all to become according to equalization made by the invention application range
Change and improve etc., it shall still fall within the scope of this patent.
Claims (10)
1. the oil buffer of tapered piston structure, it is characterised in that：It includes outer shell, outer cover, the inside setting of the outer shell
There are the first oil pressure chamber, the second oil pressure chamber, the outside at the end stop of the second oil pressure chamber is the first oil pressure chamber, described
The corresponding opening end cap far from the second oil pressure chamber of first oil pressure chamber is equipped with the outer cover, and the outer cover is towards described second
A tapered piston is disposed on the end face of oil pressure chamber, the tapered piston is from the close second oil pressure chamber to far from described second
The direction of oil pressure chamber is flared setting, and the major diameter end face of the tapered piston is fixed in the inner end of oil compression rod, the oil compression rod it is outer
End exposed, the inner face of the second oil pressure chamber and miner diameter end of the tapered piston behind the straight-line guidance hole of the outer cover
Reset spring is disposed between face, the diameter of the path end face is less than the internal diameter at the end stop, the major diameter end face
Diameter is greater than the internal diameter at the end stop, at the end stop of the conical surface of the tapered piston and the second oil pressure chamber it
Between formed oil extraction section.
2. the oil buffer of tapered piston structure as described in claim 1, it is characterised in that：The first oil pressure chamber,
Two oil pressure chambers are circular cylindrical cavity, and the internal diameter of the first oil pressure chamber is greater than the internal diameter of the second oil pressure chamber.
3. the oil buffer of tapered piston structure as claimed in claim 2, it is characterised in that：The outer cover is located at described outer
The region of the inside of cylinder is provided with an annular groove, and accumulator cotton is filled in the annular groove, and the outer ring surface of the accumulator cotton is close to
The corresponding region inner wall of the outer shell is arranged.
4. the oil buffer of tapered piston structure as described in claim 1, it is characterised in that：The capping end of the outer cover and
O-ring is packaged between the end anchor ring of the outer shell.
5. the oil buffer of tapered piston structure as described in claim 1, it is characterised in that：The straight-line guidance hole setting
There is interior concave ring groove, oil sealing is disposed in the interior concave ring groove, the inner ring surface of the oil sealing is close to the corresponding region of the oil compression rod
Arrangement.
6. the oil buffer of tapered piston structure as described in claim 1, it is characterised in that：The capping end of the outer cover and
O-ring is packaged between the end anchor ring of the outer shell.
7. the oil buffer of tapered piston structure as described in claim 1, it is characterised in that：The outer shell corresponds to the
The inner face of two oil pressure chambers is provided with buffering oil duct, and interference fit is provided with the first steel ball, the buffering in the buffering oil duct
The endface position corresponding to the outer shell of oil duct is packaged with set screw.
8. the oil buffer of tapered piston structure as described in claim 1, it is characterised in that：The path of the tapered piston
End face center is recessed buffering oil pocket, and the position towards the outer cover of the buffering oil pocket is provided with runner, the buffering
Oil pocket, runner starting point between be disposed with the second steel ball, the end of the runner is connected to described first by radial line
Oil pressure chamber.
9. the oil buffer of tapered piston structure as described in claim 1, it is characterised in that：The straight-line guidance hole is located at
The axial centre location arrangements of the outer cover, the inner end of the oil compression rod is affixed or is integrally connected to the major diameter of the tapered piston
The center of end face.
10. the oil buffer of tapered piston structure as described in claim 1, it is characterised in that：It is set on the path end face
It is equipped with the spring tip, the inner face of the second oil pressure chamber is provided with spring positioning protrusion, and one end of reset spring is set in described
Spring positioning protrusion, the other end of the reset spring are fixed in the spring tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810979429.8A CN108825701A (en) | 2018-08-23 | 2018-08-23 | The oil buffer of tapered piston structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810979429.8A CN108825701A (en) | 2018-08-23 | 2018-08-23 | The oil buffer of tapered piston structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108825701A true CN108825701A (en) | 2018-11-16 |
Family
ID=64150745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810979429.8A Pending CN108825701A (en) | 2018-08-23 | 2018-08-23 | The oil buffer of tapered piston structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108825701A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2727945Y (en) * | 2004-07-01 | 2005-09-21 | 广东省顺德开关厂有限公司 | Oil buffer for circuit breaker |
| JP2007192283A (en) * | 2006-01-18 | 2007-08-02 | Fuji Latex Kk | Shock absorber |
| CN203906641U (en) * | 2014-06-26 | 2014-10-29 | 西一电气有限公司 | Oil buffer |
| CN204792591U (en) * | 2015-07-31 | 2015-11-18 | 圣特立集团有限公司 | Oil bumper |
| CN207539259U (en) * | 2017-11-17 | 2018-06-26 | 苏州西捷克缓冲科技有限公司 | A kind of adjustable type oil buffer |
| CN209026090U (en) * | 2018-08-23 | 2019-06-25 | 苏州西捷克缓冲科技有限公司 | The oil buffer of tapered piston structure |
-
2018
- 2018-08-23 CN CN201810979429.8A patent/CN108825701A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2727945Y (en) * | 2004-07-01 | 2005-09-21 | 广东省顺德开关厂有限公司 | Oil buffer for circuit breaker |
| JP2007192283A (en) * | 2006-01-18 | 2007-08-02 | Fuji Latex Kk | Shock absorber |
| CN203906641U (en) * | 2014-06-26 | 2014-10-29 | 西一电气有限公司 | Oil buffer |
| CN204792591U (en) * | 2015-07-31 | 2015-11-18 | 圣特立集团有限公司 | Oil bumper |
| CN207539259U (en) * | 2017-11-17 | 2018-06-26 | 苏州西捷克缓冲科技有限公司 | A kind of adjustable type oil buffer |
| CN209026090U (en) * | 2018-08-23 | 2019-06-25 | 苏州西捷克缓冲科技有限公司 | The oil buffer of tapered piston structure |
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