CN205689662U - A kind of hydraulic pressure restores buffer structure - Google Patents
A kind of hydraulic pressure restores buffer structure Download PDFInfo
- Publication number
- CN205689662U CN205689662U CN201620557943.9U CN201620557943U CN205689662U CN 205689662 U CN205689662 U CN 205689662U CN 201620557943 U CN201620557943 U CN 201620557943U CN 205689662 U CN205689662 U CN 205689662U
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- working cylinder
- spring base
- spring
- axle
- buffer
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Abstract
The utility model discloses a kind of hydraulic pressure and restore 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 structure is restored, when restoring end of travel, it is to avoid when retainer ring contacts, produce bigger impact with spacer by changing amortisseur, avoid pressure oscillation, make recovery end of travel smooth transition, greatly reduce impact dynamics, be conducive to improving vehicle riding comfort and handling.
Description
Technical field
This utility model belongs to mechanical field, is specifically related to a kind of hydraulic pressure and restores buffer structure.
Background technology
Amortisseur is the decay for accelerating vehicle frame and body vibrations, to improve the device of ride of vehicle (comfortableness)
Tool, equipped with amortisseur inside the suspension system of most of automobiles.When vehicle frame makees reciprocal relative movement with vehicle bridge, and vibroshock
In piston the most reciprocating in cylinder barrel, then the fluid in damper shelf body the most repeatedly from an inner chamber by some are narrow
Little hole flows into another inner chamber.Now, friction and fluid molecule internal friction between hole wall and fluid just form the resistance to vibration
Buddhist nun's power, makes the vibrational energy of vehicle body and vehicle frame be converted into heat energy, and is absorbed by fluid and shock absorber casing, be then scattered to air
In.The size of absorber damping force increases and decreases with vehicle frame and the increase and decrease of the relative velocity of vehicle bridge (or wheel), and glues with fluid
Spend relevant.Require that used by vibroshock, the viscosity of fluid is acted upon by temperature changes the least；And there is anti-vaporization, antioxidation with
And various metals and non-metal workpiece are not played the performances such as corrosiveness.The vibroshock used on automobile has two-way function cartridge type to subtract
Shake device, inflatable vibration damper and adjustable-damping shock absorber 3 kinds.
Conventional oil fluid shock absorber end buffer structure is as it is shown in figure 1, its cushioning principle is to contact with spacer by fixing seat to touch
Hitting, spacer alternating compression cuts down the energy restoring end of travel, but spacer deflection is less, if end of travel impact force
When being worth bigger or the biggest, amortisseur can be produced the biggest impact and noise, to the comfortableness of vehicle with handling cause relatively
Big impact.
Utility model content
When technical problem to be solved in the utility model is existing vibroshock end buffering recovery damping force value relatively big or
When person is the biggest, amortisseur can be produced the biggest impact and noise, to the comfortableness of vehicle with handling affect greatly, mesh
Be provide a kind of hydraulic pressure to restore buffer structure, restore buffer structure by changing amortisseur, when restoring end of travel, keep away
Exempt to produce when retainer ring contacts with spacer bigger impact, it is to avoid pressure oscillation, make recovery end of travel smooth transition, significantly subtract
Shaochong hits dynamics, is conducive to improving vehicle riding comfort and handling.
This utility model 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
Being provided with axle, buffer spring and spring base, buffer spring and spring socket sleeve in working cylinder to be combined on the outer wall of axle, buffer spring sets
Put 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 be along axles
Centerline direction move, be provided with throttling channel in the bottom surface of spring base, and throttling channel connect with the wall of spring base, working cylinder
Inwall concave shaped become 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 buffering elastic
The clamp connection of 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
Time bigger or the biggest, amortisseur can be produced the biggest impact and noise, to the comfortableness of vehicle and handling cause bigger
Impact.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, restores buffer structure by changing amortisseur, passes through oil liquid pressure
With fluid change in volume, when restoring end of travel, it is to avoid generation bigger impact when retainer ring contacts with spacer, it is to avoid pressure
Fluctuation, makes recovery end of travel smooth transition, greatly reduces impact dynamics, is conducive to improving vehicle riding comfort and handling.Should
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, its groove
Width and tapering depend on buffering the stroke of transitional region and the slope of easement curve.
The concave side wall of spring base forms annular groove, is provided with sealing ring in annular groove, the outer wall of sealing ring with
The contact internal walls of working cylinder, sealing ring is arranged between spring base and working cylinder, and the external diameter of sealing ring is less than the diameter of groove；Work
Making to be provided with in the cavity of cylinder axle sleeve and back-up ring, axle sleeve is fixed in director assembly, back-up ring director assembly and axle sleeve it
Between, inside back-up ring, the cylindrical with axle is fitted, guide assemblies and axle sleeve limit it and move axially, and axle sleeve is arranged on buffer spring
Top；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 is at axle
On outer wall, follow axle and move together, when retainer ring moves to buffer area, contact with spring base bottom surface, and retainer ring is arranged on
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 retainer ring
Lower section.When restoring end of travel, it is to avoid produce bigger impact when retainer ring contacts with spacer, it is to avoid pressure oscillation, make
Restore end of travel smooth transition, greatly reduce impact dynamics, be conducive to improving vehicle riding comfort and handling.
This utility model compared with prior art, has such advantages as and beneficial effect: restore by changing amortisseur
Buffer structure, when restoring end of travel, it is to avoid produces bigger impact with spacer when retainer ring contacts, 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.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by this utility model embodiment, constitutes the one of the application
Part, is not intended that the restriction to this utility model embodiment.In the accompanying drawings:
Fig. 1 is conventional recovery end buffer structure figure；
Fig. 2 is this utility model structural representation；
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-is solid
Determining ring, 9-axle, 10-resetting valve system, 11-throttling channel, 12-groove, 13-spacer, 14-fixes seat, 15-oil sealing, 16-guide holder group
Part.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing,
The utility model is described in further detail, and exemplary embodiment of the present utility model and explanation thereof are only used for explaining this
Utility model, is not intended as restriction of the present utility model.
Embodiment:
As shown in Figure 2, Figure 3, Figure 4, a kind of hydraulic pressure restores buffer structure, including the working cylinder 5 of inner hollow and joins with it
The director assembly 16 closed, is provided with axle 9, buffer spring 3 and spring base 6, buffer spring 3 and spring base 6 in described working cylinder 5
Being linked on the outer wall of axle 9, buffer spring 3 is arranged on above spring base 6, and the outer wall of spring base 6 connects with the inwall of working cylinder 5
Touch, and buffer spring 3 and spring base 5 all can move along the centerline direction of axle 9, and the bottom surface of spring base 6 is provided with joint
Chute 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 towards
The end face orient diameter of working cylinder 5 is gradually decrease to identical with working cylinder 5 internal diameter.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 pacified by oil sealing 15
Being contained in insulating liquid force feed or lubricating oil in guide assemblies 16, fixing seat 14 uses steelwork, spacer 13 use rubber or gather
Urethane is made.In this programme, groove 12 is owing to being gradually decrease to and working cylinder 5 internal diameter towards the end face orient diameter of working cylinder 5
Identical so that it has the gradient tilted in working cylinder 5, the centrage of working cylinder 5 is through the center of groove 12, sealing ring
After 7 are arranged on spring base 6, the stroke starting stage, when spring base 6 is in groove 12 scope, between sealing ring 7 and groove 12 exist
Gap, hydraulic oil then can slow down situation along with this gap flows out adjustment, reduce impact, now due to sealing ring 7 and groove
12 gaps are big, and fluid will not pass through from throttling channel 11, and along with spring contraction, spring base 6 moves towards axle sleeve 2 direction, groove 12
Diameter is gradually reduced, and sealing ring 7 is also gradually reduced with the gap of groove 12, and hydraulic oil flows out from gap and gradually decreases, its buffering
Declines, due to the pressure extrusion of fluid, fluid also begins to by slowing down from throttling channel 11, when final spring base
After the scope of 6 fully out grooves 12 or when reaching stroke end, sealing ring 7 is in close contact without fluid with working cylinder 5 inwall
Leakage, now fluid can only flow to lower chamber by the throttling channel 11 on spring base 6, produces choke pressure 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,
Making to buffer more steady, parts impact force is little, and service life is longer.This utility model restores by changing amortisseur
Buffer structure, when restoring end of travel, utilizes oil liquid pressure and fluid change in volume by mechanical action purely, it is to avoid fixing
Produce bigger impact when ring contacts with spacer, it is to avoid pressure oscillation, make recovery end of travel smooth transition, greatly reduce impact
Dynamics, is conducive to improving vehicle riding comfort and handling.
Buffer spring 3 is used for fixing spring base 6 position, with working cylinder wall and spring base interference fit, resilience bullet simultaneously
Spring abutment, to design attitude, will install the chamber named hydraulic stop chamber 4 of buffer spring 3 in working cylinder 5, buffer spring 3 is all the time
It is to move in hydraulic stop chamber 4.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 sealing ring 7, the outer wall of sealing ring 7 in annular groove
With 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 groove 12
Diameter.Sealing ring 7 is existing structure, is used for sealing fluid, stops fluid to be revealed.
The cavity of working cylinder 5 is provided with axle sleeve 2 and back-up ring 1, and axle sleeve 2 and back-up ring 1 is 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 rushing oil seal lip
Brush, 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 overlapped
On 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, plane at cooperation
Degree requires 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 be by the throttling on spring base 6
Groove 11 flows to lower chamber, produces choke pressure, thus reach the function of hydraulic cushion at throttling channel.The regulation of buffering energy
It 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 throttling channel 11
Line through the centrage of spring base 6, and throttling channel 11 connects with the inner and outer wall of spring base 6 simultaneously, is symmetrical arranged
Throttling channel 11 more uniform time fluid is passed through, help to maintain internal flow velocity and the balance of pressure.
Above-described detailed description of the invention, is entered the purpose of this utility model, technical scheme and beneficial effect
One step describes in detail, be it should be understood that and the foregoing is only detailed description of the invention of the present utility model, is not used to limit
Fixed protection domain of the present utility model, all within spirit of the present utility model and principle, any amendment, the equivalent made are replaced
Change, improvement etc., within should be included in protection domain of the present utility model.
Claims (7)
1. hydraulic pressure restores a 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 bullet
Spring abutment (6) is linked on the outer wall of axle (9), and buffer spring (3) is arranged on spring base (6) top, the outer wall of spring base (6) and work
Make the contact internal walls of 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), working cylinder (5)
Inwall concave shaped becomes groove (12), and groove (12) is gradually decrease to and working cylinder towards the end face orient diameter of working cylinder (5)
(5) internal diameter is identical.
A kind of hydraulic pressure the most according to claim 1 restores buffer structure, it is characterised 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) simultaneously with
The inner and outer wall connection of spring base (6).
A kind of hydraulic pressure the most according to claim 1 restores buffer structure, it is characterised in that the sidewall of described spring base (6)
Concave shaped circularizes groove, is provided with the inwall of sealing ring (7), the outer wall of sealing ring (7) and working cylinder (5) in annular groove
Contact, sealing ring (7) is arranged between spring base (6) and working cylinder (5), and the external diameter of sealing ring (7) is straight less than groove (12)
Footpath.
A kind of hydraulic pressure the most according to claim 1 restores buffer structure, it is characterised in that the cavity of described working cylinder (5)
In be provided with axle sleeve (2) and back-up ring (1), in axle sleeve (2) is fixed on director assembly (16), back-up ring (1) is at director assembly
(16) and between axle sleeve (2), the cylindrical laminating of back-up ring (1) inner side and axle (9), by guide assemblies (16) and axle sleeve (2) restriction
It moves axially, 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 characterised in that the bottom of described spring base (6)
Being provided with retainer ring (8), 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)
On, follow axle (9) and move together, when retainer ring (8) moves to buffer area, contact with spring base (6) bottom surface, and retainer ring
(8) it is arranged in working cylinder (5).
A kind of hydraulic pressure the most according to claim 6 restores buffer structure, it is characterised in that arrange in described working cylinder (5)
There are resetting valve system (10), resetting valve system (10) to be enclosed within the outer wall of axle (9), and resetting valve system (10) is arranged on retainer ring (8)
Lower section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620557943.9U CN205689662U (en) | 2016-06-12 | 2016-06-12 | A kind of hydraulic pressure restores buffer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620557943.9U CN205689662U (en) | 2016-06-12 | 2016-06-12 | A kind of hydraulic pressure restores buffer structure |
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| Publication Number | Publication Date |
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| CN205689662U true CN205689662U (en) | 2016-11-16 |
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| CN201620557943.9U Active CN205689662U (en) | 2016-06-12 | 2016-06-12 | A kind of hydraulic pressure restores buffer structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015429A (en) * | 2016-06-12 | 2016-10-12 | 四川宁江山川机械有限责任公司 | Hydraulic returning and buffering structure |
-
2016
- 2016-06-12 CN CN201620557943.9U patent/CN205689662U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015429A (en) * | 2016-06-12 | 2016-10-12 | 四川宁江山川机械有限责任公司 | Hydraulic returning and buffering structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |