CN106015429A - Hydraulic returning and buffering structure - Google Patents
Hydraulic returning and buffering structure Download PDFInfo
- Publication number
- CN106015429A CN106015429A CN201610406432.1A CN201610406432A CN106015429A CN 106015429 A CN106015429 A CN 106015429A CN 201610406432 A CN201610406432 A CN 201610406432A CN 106015429 A CN106015429 A CN 106015429A
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- CN
- China
- Prior art keywords
- working cylinder
- spring base
- spring
- wall
- axle
- 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.)
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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
- F16F9/10—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
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a hydraulic returning and buffering structure. The hydraulic returning and buffering structure comprises a working cylinder with hollow interior and a guider component matched with the working cylinder, wherein a shaft, a buffering spring and a spring seat are arranged in the working cylinder; the buffering spring and the spring seat sheath the outer wall of the shaft; the buffering spring is arranged on the spring seat; the outer wall of the spring seat is in contact with the inner wall of the working cylinder; the buffering spring and the spring seat can move along the direction of the center line of the shaft; throttling grooves are formed in the bottom surface of the spring seat and communicate with the wall surface of the spring seat; the inner wall of the working cylinder is sunk to form a groove; and the diameter of the groove is gradually reduced in a direction of the top surface of the working cylinder till the diameter of the groove is the same as the inner diameter of the working cylinder. A damper returning and buffering structure is changed, so that the great impact generated when fixing rings are in contact with spacer bushes can be avoided at the end of the returning stroke; the pressure fluctuation is avoided; the end of the returning stroke is smooth in transition; the impact strength is greatly reduced; and comfortableness and controllability of vehicles can be improved.
Description
Technical field
The invention belongs to mechanical field, be specifically related to a kind of hydraulic pressure and restore buffer structure.
Background technology
Amortisseur is the decay for accelerating vehicle frame and body vibrations, to improve the utensil of ride of vehicle (comfortableness), equipped with amortisseur inside the suspension system of most of automobiles.When vehicle frame makees reciprocal relative movement with vehicle bridge, and the piston in vibroshock is the most reciprocating in cylinder barrel, then the fluid in damper shelf body flows into another inner chamber from an inner chamber by some narrow holes the most repeatedly.Now, friction and fluid molecule internal friction between hole wall and fluid just form the damping force to vibration, make the vibrational energy of vehicle body and vehicle frame be converted into heat energy, and are absorbed by fluid and shock absorber casing, are then scattered in air.The size of absorber damping force increases and decreases with the increase and decrease of the relative velocity of vehicle bridge (or wheel) with vehicle frame, and relevant with oil viscosity.Require that used by vibroshock, the viscosity of fluid is acted upon by temperature changes the least；And there is anti-vaporization, antioxidation and various metals and non-metal workpiece are not played the performances such as corrosiveness.The vibroshock used on automobile has double adjustable shock absorber, inflatable vibration damper and adjustable-damping shock absorber 3 kinds.
Conventional oil fluid shock absorber end buffer structure is as shown in Figure 1, its cushioning principle is by fixing seat and spacer contact-impact, spacer alternating compression cuts down the energy restoring end of travel, but spacer deflection is less, if end of travel shock force value is bigger or the biggest, amortisseur can be produced the biggest impact and noise, to the comfortableness of vehicle with handling affect greatly.
Summary of the invention
When the technical problem to be solved is existing vibroshock end buffering, recovery damping force value is bigger or the biggest, amortisseur can be produced the biggest impact and noise, to the comfortableness of vehicle with handling affect greatly, purpose is to provide a kind of hydraulic pressure to restore buffer structure, buffer structure is restored by changing amortisseur, when restoring end of travel, bigger impact is produced with spacer when avoiding retainer ring to contact, avoid pressure oscillation, make recovery end of travel smooth transition, greatly reduce impact dynamics, be conducive to improving vehicle riding comfort and handling.
The present invention is achieved through the following technical solutions:
A kind of hydraulic pressure restores buffer structure, including the working cylinder of inner hollow and the director assembly that coordinates with it, described working cylinder is provided with axle, buffer spring and spring base, buffer spring and spring socket sleeve are combined on the outer wall of axle, buffer spring is arranged on above spring base, the outer wall of spring base and the contact internal walls of working cylinder, and buffer spring and spring base all can move along the centerline direction of axle, the bottom surface of spring base is provided with throttling channel, and throttling channel connects with the wall of spring base, the inwall concave shaped of working cylinder becomes groove, and groove is gradually decrease to identical with working cylinder internal diameter towards the end face orient diameter of working cylinder；Buffer spring upper end external diameter is connected with working cylinder inwall interference, and contacts with director assembly upper surface, spring base and the clamp connection of buffer spring lower end；Throttling channel connects with the inner and outer wall of spring base simultaneously.The cushioning principle of conventional oil fluid shock absorber is by fixing seat and spacer contact-impact, spacer alternating compression cuts down the energy restoring end of travel, if recovery damping force value is bigger or the biggest, amortisseur can be produced the biggest impact and noise, to the comfortableness of vehicle with handling affect greatly.And the regulation that the buffering energy of the technical program can regulate according to the concrete condition of vehicle, to reach optimal driving requirement.This structure is mainly used in all types of oil damper, buffer structure is restored by changing amortisseur, by oil liquid pressure and fluid change in volume, when restoring end of travel, produce bigger impact when avoiding retainer ring to contact with spacer, it is to avoid pressure oscillation, make recovery end of travel smooth transition, greatly reduce impact dynamics, be conducive to improving vehicle riding comfort and handling.This device is good through practical effect.
The quantity of throttling channel does not limits, and can be a plurality of, and quantity and cross-sectional area set according to design and buffering energy size.The quantity of working cylinder indent groove can be a plurality of, and the angle of indent all can set according to design and buffering energy size, and the width of its groove and tapering depend on stroke and the slope of easement curve buffering transitional region.
The concave side wall of spring base forms annular groove, is provided with sealing ring in annular groove, the outer wall of sealing ring and the contact internal walls of working cylinder, and sealing ring is arranged between spring base and working cylinder, and the external diameter of sealing ring is less than the diameter of groove；The cavity of working cylinder is provided with axle sleeve and back-up ring, axle sleeve is fixed in director assembly, and back-up ring is between director assembly and axle sleeve, and inside back-up ring, the cylindrical with axle is fitted, being limited it by guide assemblies and axle sleeve to move axially, axle sleeve is arranged on the top of buffer spring；The bottom of spring base is provided with retainer ring, and the end face of retainer ring contacts with the bottom surface of spring base, and Fixing shrink ring, on the outer wall of axle, is followed axle and moved together, when retainer ring moves to buffer area, contacts with spring base bottom surface, and retainer ring is arranged in working cylinder；Being provided with resetting valve system in working cylinder, resetting valve system is enclosed within the outer wall of axle, and resetting valve system is arranged on the lower section of retainer ring.When restoring end of travel, it is to avoid produce bigger impact when retainer ring contact with spacer, it is to avoid pressure oscillation, make recovery end of travel smooth transition, greatly reduce impact dynamics, beneficially raising vehicle riding comfort and handling.
The present invention is compared with prior art, have such advantages as and beneficial effect: restore buffer structure by changing amortisseur, when restoring end of travel, bigger impact is produced with spacer when avoiding retainer ring to contact, avoid pressure oscillation, make recovery end of travel smooth transition, greatly reduce impact dynamics, be conducive to improving vehicle riding comfort and handling.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by the embodiment of the present invention, constitutes the part of the application, is not intended that the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is conventional recovery end buffer structure figure；
Fig. 2 is present configuration schematic diagram；
Fig. 3 is the spring-compressed view of Fig. 2；
Fig. 4 is the structural representation of spring base.
The parts title of labelling and correspondence in accompanying drawing:
1-back-up ring, 2-axle sleeve, 3-buffer spring, 4-hydraulic stop chamber, 5-working cylinder, 6-spring base, 7-sealing ring, 8-retainer ring, 9-axle, 10-resetting valve system, 11-throttling channel, 12-groove, 13-spacer, 14-fixes seat, 15-oil sealing, 16-guide assemblies.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and the exemplary embodiment of the present invention and explanation thereof are only used for explaining the present invention, not as a limitation of the invention.
Embodiment:
Such as Fig. 2, Fig. 3, shown in Fig. 4, a kind of hydraulic pressure restores buffer structure, including the working cylinder 5 of inner hollow and the director assembly 16 that coordinates with it, described working cylinder 5 is provided with axle 9, buffer spring 3 and spring base 6, buffer spring 3 and spring base 6 are linked on the outer wall of axle 9, buffer spring 3 is arranged on above spring base 6, the outer wall of spring base 6 and the contact internal walls of working cylinder 5, and buffer spring 3 and spring base 5 all can move along the centerline direction of axle 9, the bottom surface of spring base 6 is provided with throttling channel 11, and throttling channel 11 connects with the wall of spring base 6, the inwall concave shaped of working cylinder 5 becomes groove 12, and groove 12 is gradually decrease to identical with working cylinder 5 internal diameter towards the end face orient diameter of working cylinder 5.Fig. 1 is conventional recovery end buffer structure figure, fit guide assemblies 16, spacer 13, fixing seat 14 and resetting valve system 10 successively on the outer wall of axle, and it is arranged on insulating liquid force feed or lubricating oil in guide assemblies 16 by oil sealing 15, fixing seat 14 uses steelwork, spacer 13 to use rubber or polyurethane to make.nullIn this programme, groove 12 is identical with working cylinder 5 internal diameter owing to being gradually decrease to towards the end face orient diameter of working cylinder 5，It is made to have the gradient tilted in working cylinder 5，The centrage of working cylinder 5 is through the center of groove 12，After sealing ring 7 is arranged on spring base 6，The stroke starting stage，When spring base 6 is in groove 12 scope，There is gap in sealing ring 7 and groove 12，Hydraulic oil then can slow down situation along with this gap flows out adjustment，Reduce impact，Now big with groove 12 gap due to sealing ring 7，Fluid will not pass through from throttling channel 11，Along with spring contraction，Spring base 6 moves towards axle sleeve 2 direction，Groove 12 diameter is gradually reduced，Sealing ring 7 is also gradually reduced with the gap of groove 12，Hydraulic oil flows out from gap and gradually decreases，Its cushioning effect weakens，Pressure extrusion due to fluid，Fluid also begins to from throttling channel 11 by slowing down，When after the scope of the final fully out groove of spring base 6 12 or when reaching stroke end，Sealing ring 7 is in close contact without oil liquid leakage with working cylinder 5 inwall，Now fluid can only flow to lower chamber by the throttling channel 11 on spring base 6，Choke pressure is produced at throttling channel，Thus reach the function of hydraulic cushion again，Decrease impact.Dual slowing down is slowed down accordingly according to diverse location and state so that buffering is more steady, and parts impact force is little, and service life is longer.The present invention restores buffer structure by changing amortisseur, when restoring end of travel, mechanical action purely is utilized oil liquid pressure and fluid change in volume, bigger impact is produced with spacer when avoiding retainer ring to contact, avoid pressure oscillation, make recovery end of travel smooth transition, greatly reduce impact dynamics, be conducive to improving vehicle riding comfort and handling.
The quantity of throttling channel 11 does not limits, and can be a plurality of, and quantity and cross-sectional area set according to design and buffering energy size.The quantity of working cylinder indent groove 12 can be a plurality of, and the angle of indent all can set according to design and buffering energy size, and the width of its groove 12 and tapering depend on stroke and the slope of easement curve buffering transitional region so that more steady when buffering.
Buffer spring 3 is used for fixing spring base 6 position, with working cylinder wall and spring base interference fit, rebound spring seat is to design attitude simultaneously, will install the chamber named hydraulic stop chamber 4 of buffer spring 3 in working cylinder 5, and buffer spring 3 is to move in hydraulic stop chamber 4 all the time.Spring base 6 has coordinated cushioning effect with retainer ring 8.
The concave side wall of spring base 6 forms annular groove, is provided with the contact internal walls of sealing ring 7, the outer wall of sealing ring 7 and working cylinder 5 in annular groove, and sealing ring 7 is arranged between spring base 6 and working cylinder 5, and the external diameter of sealing ring 7 is less than the diameter of groove 12.Sealing ring 7 is existing structure, is used for sealing fluid, stops fluid to be revealed.
Being provided with axle sleeve 2 and back-up ring 1 in the cavity of working cylinder 5, and axle sleeve 2 and back-up ring 1 are all linked on the outer wall of axle 9, back-up ring 1 is arranged on the top of axle sleeve 2 and back-up ring 1 bottom surface contacts with axle sleeve 2 end face, and axle sleeve 2 is arranged on the top of buffer spring 3.Back-up ring 1 uses annular retaining ring, and the effect of annular retaining ring is to prevent damping oil high speed oil pressure when restoring from washing away oil seal lip, prevents oil liquid leakage.
The bottom of spring base 6 is provided with retainer ring 8, and the end face of retainer ring 8 contacts with the bottom surface of spring base 6, and retainer ring 8 is enclosed within the outer wall of axle 9, and retainer ring 8 is arranged in working cylinder 5.Retainer ring 8 and the bottom surface of spring base 6, at cooperation, planarity requirements is higher, and employing machine adds part, and the space requirement of throttling channel 11 is reserved out.
Restoring end of travel, when spring base 6 and retainer ring 8 contact, fluid can only flow to lower chamber by the throttling channel 11 on spring base 6, produces choke pressure, thus reach the function of hydraulic cushion at throttling channel.The regulation of buffering energy is to be adjusted by the cross-sectional area of the throttling channel 11 on spring base 6.Throttling channel 11 preferred amount is two, and the line of throttling channel 11 is through the centrage of spring base 6, and throttling channel 11 connects with the inner and outer wall of spring base 6 simultaneously, more uniform when symmetrically arranged throttling channel 11 makes fluid pass through, help to maintain internal flow velocity and the balance of pressure.
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect are further described; it is it should be understood that; the foregoing is only the detailed description of the invention of the present invention; the protection domain being not intended to limit the present invention; all within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included within the scope of the present invention.
Claims (7)
- null1. a hydraulic pressure restores buffer structure，Including the working cylinder (5) of inner hollow and the director assembly (16) that coordinates with it，It is characterized in that，Described working cylinder (5) is provided with axle (9)、Buffer spring (3) and spring base (6)，Buffer spring (3) and spring base (6) are linked on the outer wall of axle (9)，Buffer spring (3) is arranged on spring base (6) top，The outer wall of spring base (6) and the contact internal walls of working cylinder (5)，And buffer spring (3) and spring base (5) all can move along the centerline direction of axle (9)，The bottom surface of spring base (6) is provided with throttling channel (11)，And throttling channel (11) connects with the wall of spring base (6)，The inwall concave shaped of working cylinder (5) becomes groove (12)，And groove (12) is gradually decrease to identical with working cylinder (5) internal diameter towards the end face orient diameter of working cylinder (5).
- A kind of hydraulic pressure the most according to claim 1 restores buffer structure, it is characterized in that, described buffer spring (3) upper end external diameter is connected with working cylinder (5) inwall interference, and contacts with director assembly (16) upper surface, spring base (6) and buffer spring (3) lower end clamp connection.
- A kind of hydraulic pressure the most according to claim 1 restores buffer structure, it is characterised in that described throttling channel (11) connects with the inner and outer wall of spring base (6) simultaneously.
- A kind of hydraulic pressure the most according to claim 1 restores buffer structure, it is characterized in that, the concave side wall of described spring base (6) forms annular groove, sealing ring (7) it is provided with in annular groove, the outer wall of sealing ring (7) and the contact internal walls of working cylinder (5), sealing ring (7) is arranged between spring base (6) and working cylinder (5), and the external diameter of sealing ring (7) is less than the diameter of groove (12).
- A kind of hydraulic pressure the most according to claim 1 restores buffer structure, it is characterized in that, the cavity of described working cylinder (5) is provided with axle sleeve (2) and back-up ring (1), axle sleeve (2) is fixed in director assembly (16), back-up ring (1) is between director assembly (16) and axle sleeve (2), back-up ring (1) inner side and the cylindrical laminating of axle (9), limited it moved axially by guide assemblies (16) and axle sleeve (2), and axle sleeve (2) is arranged on the top of buffer spring (3).
- A kind of hydraulic pressure the most according to claim 1 restores buffer structure, it is characterized in that, the bottom of described spring base (6) is provided with retainer ring (8), the end face of retainer ring (8) contacts with the bottom surface of spring base (6), retainer ring (8) is enclosed within the outer wall of axle (9), follows axle (9) and moves together, when retainer ring (8) moves to buffer area, contact with spring base (6) bottom surface, and retainer ring (8) is arranged in working cylinder (5).
- A kind of hydraulic pressure the most according to claim 6 restores buffer structure, it is characterized in that, being provided with resetting valve system (10) in described working cylinder (5), resetting valve system (10) is enclosed within the outer wall of axle (9), and resetting valve system (10) is arranged on the lower section of retainer ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610406432.1A CN106015429A (en) | 2016-06-12 | 2016-06-12 | Hydraulic returning and buffering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610406432.1A CN106015429A (en) | 2016-06-12 | 2016-06-12 | Hydraulic returning and buffering structure |
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| Publication Number | Publication Date |
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| CN106015429A true CN106015429A (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610406432.1A Pending CN106015429A (en) | 2016-06-12 | 2016-06-12 | Hydraulic returning and buffering structure |
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| CN (1) | CN106015429A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667875A (en) * | 2019-01-21 | 2019-04-23 | 桂林电子科技大学 | A kind of hydraulic damping damper of stiffness variable self-adaptive damping variable |
| CN110345187A (en) * | 2019-07-17 | 2019-10-18 | 太原理工大学 | A kind of compound Self-resetting energy-consuming shock absorber and its application method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4345748A (en) * | 1978-12-14 | 1982-08-24 | Fichtel & Sachs Ag | Fluid damped unit, particularly for use as shock absorber or telescopic strut |
| US20060049014A1 (en) * | 2004-09-09 | 2006-03-09 | Vincent Vanspauwen | Shock absorber having a hydraulic stop |
| CN102619920A (en) * | 2012-03-27 | 2012-08-01 | 柴远宗 | Unpowered hydraulic one-way buffer device |
| CN202756521U (en) * | 2012-08-24 | 2013-02-27 | 天纳克（北京）汽车减振器有限公司 | Hydraulic recovery and cushion shock absorber |
| CN103486187A (en) * | 2013-10-11 | 2014-01-01 | 重庆瑞翱机电设备有限公司 | Automatic variable damping rear shock absorber of motorcycle capable of vibrating along with ups and downs of road surface |
| CN203641378U (en) * | 2014-01-13 | 2014-06-11 | 浙江亚之星汽车部件有限公司 | Hydraulic damping shock absorber |
| CN205689662U (en) * | 2016-06-12 | 2016-11-16 | 四川宁江山川机械有限责任公司 | A kind of hydraulic pressure restores buffer structure |
-
2016
- 2016-06-12 CN CN201610406432.1A patent/CN106015429A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4345748A (en) * | 1978-12-14 | 1982-08-24 | Fichtel & Sachs Ag | Fluid damped unit, particularly for use as shock absorber or telescopic strut |
| US20060049014A1 (en) * | 2004-09-09 | 2006-03-09 | Vincent Vanspauwen | Shock absorber having a hydraulic stop |
| CN102619920A (en) * | 2012-03-27 | 2012-08-01 | 柴远宗 | Unpowered hydraulic one-way buffer device |
| CN202756521U (en) * | 2012-08-24 | 2013-02-27 | 天纳克（北京）汽车减振器有限公司 | Hydraulic recovery and cushion shock absorber |
| CN103486187A (en) * | 2013-10-11 | 2014-01-01 | 重庆瑞翱机电设备有限公司 | Automatic variable damping rear shock absorber of motorcycle capable of vibrating along with ups and downs of road surface |
| CN203641378U (en) * | 2014-01-13 | 2014-06-11 | 浙江亚之星汽车部件有限公司 | Hydraulic damping shock absorber |
| CN205689662U (en) * | 2016-06-12 | 2016-11-16 | 四川宁江山川机械有限责任公司 | A kind of hydraulic pressure restores buffer structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667875A (en) * | 2019-01-21 | 2019-04-23 | 桂林电子科技大学 | A kind of hydraulic damping damper of stiffness variable self-adaptive damping variable |
| CN109667875B (en) * | 2019-01-21 | 2024-03-01 | 桂林电子科技大学 | Variable-rigidity self-adaptive variable-damping hydraulic damping shock absorber |
| CN110345187A (en) * | 2019-07-17 | 2019-10-18 | 太原理工大学 | A kind of compound Self-resetting energy-consuming shock absorber and its application method |
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Application publication date: 20161012 |