CN106438821A - Barrel type hydraulic shock absorber - Google Patents
Barrel type hydraulic shock absorber Download PDFInfo
- Publication number
- CN106438821A CN106438821A CN201610607872.3A CN201610607872A CN106438821A CN 106438821 A CN106438821 A CN 106438821A CN 201610607872 A CN201610607872 A CN 201610607872A CN 106438821 A CN106438821 A CN 106438821A
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- China
- Prior art keywords
- valve
- piston
- shock absorber
- elastic component
- hydraulic shock
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Classifications
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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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- 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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
- F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
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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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/06—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper
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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
- 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
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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
- 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
- F16F9/3482—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 the annular discs being incorporated within the valve or piston body
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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
- 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
- F16F9/3488—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 features intended to affect valve bias or pre-stress
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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
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
- F16F9/516—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics resulting in the damping effects during contraction being different from the damping effects during extension, i.e. responsive to the direction of movement
Abstract
The invention provides a barrel type hydraulic shock absorber, and belongs to the technical field of shock absorption. The barrel type hydraulic shock absorber solves the technical problems that when a vehicle body is heavy, the response speed of an existing barrel type hydraulic shock absorber to vibration is low, and the shock absorber is prone to being damaged. A flow valve hole and a restoration valve hole are formed in a piston of the barrel type hydraulic shock absorber, a first elastic piece and a flow valve plate are arranged on the upper side of the piston, the lower end of the first elastic piece is connected with the upper end face of the flow valve plate, and the upper end of the first elastic piece is fixedly connected with a connecting rod. A restoration valve plate and a restoration valve nut are arranged on the lower side of the piston, and a second elastic piece is arranged between the restoration valve plate and the lower end of the restoration valve nut. A valve rod on a compression valve seat is fixedly connected with the compression valve seat, the upper end of a third elastic piece is fixedly connected with the upper end of the connecting rod, and the lower end of the third elastic piece is connected with the upper end face of the restoration valve plate. By means of design of the first elastic piece, the second elastic piece and the third elastic piece in the barrel type hydraulic shock absorber, the response speed of the barrel type hydraulic shock absorber can be increased.
Description
Technical field
The invention belongs to antivibration area, it is related to a kind of Hydraulic shock absorber.
Background technology
The knot of the widely used torsion+hydraulic shock absorber of suspension of present oversize vehicle such as Tank and Armoured Vehicle
Structure, the feature of this suspension is that effectiveness in vibration suppression is preferable, technology maturation is reliable, and cost is relatively low.And hydraulic shock absorber therein
Generally Hydraulic shock absorber, Hydraulic shock absorber is made up of parts such as outer tube, inner core, piston, piston rods, and outer tube passes through
One connecting rod is connected with balance arm and bogie wheel, and inner core is connected with car body by cylinder arm, is filled with Damping fluid between inner/outer tube.
The principle of its vibration damping is as follows：When bogie wheel rises, band piston moves together, and the liquid of upper piston area is passed through
A lot of through holes press to piston lower portion space, and due to through hole very little, liquid creates very big resistance in flow process, thus playing
Damping effect；When bogie wheel declines, the liquid of piston lower portion is pressed back in upper space again, equally plays damping effect.
But nowadays the Hydraulic shock absorber on market is only applicable to automotive type more typically and damping value relatively
Relatively low vehicle, if used in when on oversize vehicle such as tank armor car, because vehicle body is heavier, the damping value of vibroshock can not
Enough, lead to the generation of the problems such as response speed to vibration is slow, and during vibration damping, noise is larger, vibroshock is easily damaged.
Content of the invention
The present invention is directed to the problems referred to above that existing technology exists, and provides a kind of Hydraulic shock absorber, the present invention is wanted
Solve technical problem be：How to improve the response speed of vibroshock.
The purpose of the present invention can be realized by following technical proposal：
A kind of Hydraulic shock absorber, described Hydraulic shock absorber includes cylinder barrel, connecting rod and is fixed on connecting rod one end
Piston, described piston is located in described cylinder barrel and the outer wall of described piston is close to inwall, described piston and the company of described cylinder barrel
Bar can slide in described cylinder barrel along cylinder barrel axis direction and pass through described piston it is characterised in that being provided with described piston
The circulation valve opening worn and recovery valve opening, the upside of described piston is provided with the first elastic component and the circulation by described circulation valve bore closure
Valve block, the bottom of described first elastic component is connected with the upper surface of described flow- through valve plate, the upper end of described first elastic component
It is connected with described connecting rod；The downside of described piston is provided with will restore the recovery valve block of valve bore closure and is used for described recovery valve block
Fixing recovery valve nut, is provided with the second elastic component between described recovery valve block and the bottom restoring valve nut；Described cylinder barrel
Bottom be provided with and seal against fixing compression valve seat, described compression valve seat is provided with compensator valve plate, valve rod, the 3rd elastic component
With the compensation valve opening running through described compression valve seat, described valve rod and described compression valve seat be connected, and described compensator valve plate is located at described
The upside of compression valve seat, the upper end of described 3rd elastic component is connected with the upper end of described connecting rod, described 3rd elastic component
Bottom is connected with the described upper surface restoring valve block.
Its operation principle is as follows：In this Hydraulic shock absorber, on the upside of cylinder barrel inner carrier, sealing-plug and cylinder barrel surrounded
Space is upper cavity, and the space that piston underside, cylinder barrel and compression valve seat are surrounded is lower chamber, the sky between surge drum and cylinder barrel
Between be oil storage cylinder；Flowing valve includes circulate valve opening, flow- through valve plate and the first elastic component；Rebuilt valve includes restoring valve opening, rebuilt valve
Piece, recovery valve nut and the second elastic component；Recuperation valve includes compensator valve plate and compensates valve opening, and compression valve seat is provided with compression valve；
When vehicle frame (or vehicle body) and between vehicle bridge vibrated relative motion occurs when, the piston in this Hydraulic shock absorber moves up and down,
Fluid in upper cavity and cavity of resorption body will pass through the flowing between upper cavity and lower chamber repeatedly of different through holes.Now hole wall
Friction and between fluid and the intermolecular internal friction of fluid form damping force to vibration, make automobile vibrational energy be converted into fluid heat
Can, then be dispersed in air by shock absorber.
When this Hydraulic shock absorber is compressed, now vibroshock inner carrier moves down.The volume reducing of lower chamber, oil
Pressure raises, and fluid flows through flowing valve and flows to upper cavity.Upper cavity has been accounted for a part of space by piston rod, thus upper cavity increases
Volume be less than the volume that cavity of resorption reduces, a part of fluid then just pushes compression valve open, flows back to oil storage cylinder.These valves are to oily section
About form the damping force of the compressed motion of suspension.Vibroshock is in wheel away from vehicle body, vibroshock Tensile, the at this moment work of vibroshock
Plug moves up, and the oil pressure in epicoele body raises, and flowing valve is closed, and the fluid in epicoele body is pushed rebuilt valve open and flowed into lower chamber.
Due to the presence of piston rod, the fluid coming from upper cavity stream is not enough to the volume increasing full of lower chamber, and lower chamber can be made to produce
One vacuum, at this moment the fluid in oil storage cylinder push recuperation valve open and flow to lower chamber and supplemented.Due to the throttling action of these valves,
Therefore play damping action to when being suspended in and doing stretching exercise.
In this Hydraulic shock absorber, rebuilt valve and recuperation valve are to uphold valve group, and flowing valve and compression valve are compression valve group,
Being designed to of first elastic component, the second elastic component and the 3rd elastic component increases flow- through valve plate respectively, restores valve block and recuperation valve
The pretightning force of piece, under same pressure, upholds the accordingly long straight joint gap of valve group and channel cross-sectional area summation is less than compression valve group
Accordingly long straight joint gap and channel cross-sectional area summation, this makes the damping force that the extension stroke of amortisseur produces be more than compression travel
Damping force, reaches the requirement of rapid damping；First elastic component, the second elastic component and the 3rd elastic component can also be to vibrating simultaneously
To certain cushioning effect, decrease the generation of heat during vibration damping, improve the response speed of vibration damping.
In a kind of above-mentioned Hydraulic shock absorber, the middle part of described piston is provided with and first leads to what described piston ran through
Hole, described connecting rod passes through from described first through hole and described piston is circumferentially fixed with connecting rod, and the upside of described piston is additionally provided with stream
Port valve backup washer, described flowing valve backup washer ringwise and the inwall of described flowing valve backup washer and described connecting rod outer
Wall is fitted, and described flow- through valve plate is located between lower end and the upper surface of described piston of described flowing valve backup washer, and described
The inner of flow- through valve plate is pressed abd fixed on the upper surface of described piston by described flowing valve backup washer, and described flowing valve supports
The upper end of packing ring has first convex edge vertical with connecting rod axis, the bottom of described first elastic component and described flow- through valve plate
Upper surface connect, and both junction points be located at described flow- through valve plate outer end, the upper end of described first elastic component with
First convex edge of described flowing valve backup washer is connected.Above-mentioned first elastic component can be helical spring or gum elastic.
In a kind of above-mentioned Hydraulic shock absorber, the described valve block that restores is located at the described upper end restoring valve nut and institute
State between the lower surface of piston, and described the inner restoring valve block is pressed abd fixed on described work by the described upper end restoring valve nut
On the lower surface of plug；Described restore valve block downside be provided with rebuilt valve backup washer, described rebuilt valve backup washer ringwise and
It is set in the outside of the described upper end restoring valve nut, the lower end of described recovery valve nut is provided with and described recovery valve nut
The second vertical convex edge of axis, the upper end of described second elastic component is fixed on the lower surface of described rebuilt valve backup washer,
The lower end of described second elastic component is connected with described the second convex edge restored on valve nut.Above-mentioned second elastic component can be spiral
Spring or gum elastic.
In a kind of above-mentioned Hydraulic shock absorber, described valve rod runs through described compression valve seat, the lower end of described valve rod
The outer wall of salt valve rod is circumferentially provided with positioning convex, and the upper end of described valve rod is fixed with compensation valve nut.
In a kind of above-mentioned Hydraulic shock absorber, described compensator valve plate is located at the described lower end compensating valve nut and institute
State between the upper surface of compression valve seat, and the inner of described compensator valve plate is pressed abd fixed on described compression by described compensation valve nut
On the upper surface of valve seat, it is convex that the described upper end compensating valve nut is provided with threeth vertical with the axis of described compensation valve nut
Edge, the upper end of described 3rd elastic component is connected with described 3rd convex edge, the lower end of described 3rd elastic component and described compensator valve plate
Upper surface be connected.Above-mentioned 3rd elastic component can be helical spring or gum elastic.
In a kind of above-mentioned Hydraulic shock absorber, described compression valve seat is additionally provided with compression valve block and by described compression
The compression valve opening that valve seat runs through, described compression valve block is located at the downside of described compression valve seat and by described compression valve bore closure, institute
State and between positioning convex and described compression valve block, be provided with limiting gasket, the external diameter of described limiting gasket is less than described compression valve block
External diameter.
In a kind of above-mentioned Hydraulic shock absorber, described Hydraulic shock absorber also includes surge drum and sealing-plug,
Described surge drum is sheathed on outside described cylinder barrel, and the upper end of described sealing-plug seals fixation with the upper end of described surge drum, described close
The lower end of blocking is tightly connected with the upper end of described cylinder barrel, has conduit in described sealing-plug, described conduit by described cylinder barrel and
Surge drum connects.
In a kind of above-mentioned Hydraulic shock absorber, described connecting rod runs through described sealing-plug, the upper end of described sealing-plug
It is fixed with sealing ring, described sealing ring is set on described connecting rod and is tightly connected with described connecting rod.
Compared with prior art, advantages of the present invention is as follows：
In this Hydraulic shock absorber, the first elastic component, the second elastic component and the 3rd elastic component is designed to vibrating
To certain cushioning effect, decrease the generation of heat during vibration damping, improve the response speed of vibration damping.
Brief description
Fig. 1 is the overall structure diagram of this Hydraulic shock absorber.
Fig. 2 is the partial enlarged drawing at A in Fig. 1.
Fig. 3 is the partial enlarged drawing at B in Fig. 1.
In figure, 1, cylinder barrel；2nd, connecting rod；3rd, piston；4th, circulate valve opening；5th, restore valve opening；6th, the first elastic component；7th, flowing valve
Piece；8th, restore valve block；9th, restore valve nut；10th, the second elastic component；11st, compression valve seat；12nd, compensator valve plate；13rd, valve rod；14、
3rd elastic component；15th, compensate valve opening；16th, flowing valve backup washer；17th, the first convex edge；18th, rebuilt valve backup washer；19th,
Two convex edges；20th, positioning convex；21st, compensate valve nut；22nd, the 3rd convex edge；23rd, compress valve block；24th, compress valve opening；25th, spacing
Packing ring；26th, surge drum；27th, sealing-plug；28th, conduit；29th, sealing ring.
Specific embodiment
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
Hydraulic shock absorber as Figure 1-3, this Hydraulic shock absorber includes cylinder barrel 1, connecting rod 2 and the company of being fixed on
The piston 3 of bar 2 one end, piston 3 is located at inwall, piston 3 and connecting rod 2 energy that interior and piston 3 the outer wall of cylinder barrel 1 is close to cylinder barrel 1
Enough slide it is characterised in that the circulation valve opening 4 running through piston 3 is provided with piston 3 in cylinder barrel 1 along cylinder barrel 1 axis direction
With recovery valve opening 5, the upside of piston 3 is provided with the first elastic component 6 and the flow- through valve plate 7 closing circulation valve opening 4, the first elastic component
6 bottom is connected with the upper surface of flow- through valve plate 7, and the upper end of the first elastic component 6 is connected with connecting rod 2；The downside of piston 3 sets
Have and restore restore that valve opening 5 closes valve block 8 and be used for the recovery valve nut 9 fixing by restoring valve block 8, restore valve block 8 and multiple
It is provided with the second elastic component 10 between the bottom of former valve nut 9；The bottom of cylinder barrel 1 is provided with and seals against fixing compression valve seat
11, compression valve seat 11 is provided with compensator valve plate 12, valve rod 13, the 3rd elastic component 14 and the compensation valve opening running through compression valve seat 11
15, valve rod 13 is connected with compression valve seat 11, and compensator valve plate 12 is located at the upside of compression valve seat 11, the upper end of the 3rd elastic component 14
It is connected with the upper end of connecting rod 2, the bottom of the 3rd elastic component 14 is connected with the upper surface restoring valve block 8.
As depicted in figs. 1 and 2, the middle part of piston 3 is provided with the first through hole running through piston 3, and connecting rod 2 is worn from first through hole
Cross and piston 3 is circumferentially fixed with connecting rod 2, the upside of piston 3 is additionally provided with flowing valve backup washer 16, and flowing valve backup washer 16 is in
The annular and inwall of flowing valve backup washer 16 is fitted with the outer wall of connecting rod 2, and flow- through valve plate 7 is located at flowing valve backup washer 16
Between the upper surface of lower end and piston 3, and the inner of flow- through valve plate 7 is pressed abd fixed on piston 3 by flowing valve backup washer 16
On upper surface, the upper end of flowing valve backup washer 16 has first convex edge 17 vertical with connecting rod 2 axis, the first elastic component 6
Bottom be connected with the upper surface of flow- through valve plate 7, and both junction points be located at flow- through valve plate 7 outer end, first elasticity
The upper end of part 6 is connected with the first convex edge 17 of flowing valve backup washer 16.Above-mentioned first elastic component 6 can for helical spring or
Person's gum elastic.
As depicted in figs. 1 and 2, restore valve block 8 to be located between the upper end restoring valve nut 9 and the lower surface of piston 3, and multiple
The upper end that the inner of former valve block 8 is reconditioned valve nut 9 is pressed abd fixed on the lower surface of piston 3；The downside restoring valve block 8 is provided with
Rebuilt valve backup washer 18, rebuilt valve backup washer 18 ringwise and be set in restore valve nut 9 upper end outside, restore
The lower end of valve nut 9 is provided with second convex edge 19 vertical with the axis restoring valve nut 9, and the upper end of the second elastic component 10 is fixed
On the lower surface of rebuilt valve backup washer 18, the lower end of the second elastic component 10 is solid with the second convex edge 19 restored on valve nut 9
Even.Above-mentioned second elastic component 10 can be helical spring or gum elastic.
As shown in figures 1 and 3, valve rod 13 runs through compression valve seat 11, and the outer wall circumference of the lower end salt valve rod 13 of valve rod 13 sets
It is equipped with positioning convex 20, the upper end of valve rod 13 is fixed with compensation valve nut 21；Compensator valve plate 12 is located at and compensates under valve nut 21
Between end and the upper surface of compression valve seat 11, and the inner of compensator valve plate 12 is compensated valve nut 21 and is pressed abd fixed on compression valve seat
On 11 upper surface, the upper end compensating valve nut 21 is provided with threeth convex edge 22 vertical with the axis compensating valve nut 21, the
The upper end of three elastic components 14 is connected with the 3rd convex edge 22, and the lower end of the 3rd elastic component 14 is connected with the upper surface of compensator valve plate 12.
Above-mentioned 3rd elastic component 14 can be helical spring or gum elastic.
As shown in figure 3, compression valve block 23 and the compression valve opening 24 running through compression valve seat 11 are additionally provided with compression valve seat 11,
Compression valve block 23 located at the downside of compression valve seat 11 and will compress valve opening 24 and close, and positioning convex 20 and compressing sets between valve block 23
Limited location packing ring 25, the external diameter of limiting gasket 25 is less than the external diameter of compression valve block 23.
As shown in figure 1, Hydraulic shock absorber also includes surge drum 26 and sealing-plug 27, surge drum 26 is sheathed on cylinder barrel 1
Outward, the upper end of sealing-plug 27 and the upper end sealing of surge drum 26 are fixed, and the lower end of sealing-plug 27 is sealed even with the upper end of cylinder barrel 1
Connect, there is in sealing-plug 27 conduit 28, cylinder barrel 1 is connected with surge drum 26 by conduit 28.
In a kind of above-mentioned Hydraulic shock absorber, connecting rod 2 runs through sealing-plug 27, and the upper end of sealing-plug 27 is fixed with close
Seal 29, sealing ring 29 is set on connecting rod 2 and is tightly connected with connecting rod 2.
Its operation principle is as follows：In this Hydraulic shock absorber, cylinder barrel 1 inner carrier 3 upside, sealing-plug 27 and cylinder barrel 1 institute
The space surrounding is upper cavity, and the space that piston 3 downside, cylinder barrel 1 and compression valve seat 11 are surrounded is lower chamber, surge drum 26 He
Space between cylinder barrel 1 is oil storage cylinder；Flowing valve includes circulate valve opening 4, flow- through valve plate 7 and the first elastic component 6；Rebuilt valve includes
Restore valve opening 5, restore valve block 8, restore valve nut 9 and the second elastic component 10；Recuperation valve includes compensator valve plate 12 and compensates valve opening
15, compression valve seat 11 is provided with compression valve；When vehicle frame (or vehicle body) and between vehicle bridge vibrated relative motion occurs when, this cartridge type liquid
Piston 3 in pressure damper moves up and down, the fluid in upper cavity and cavity of resorption body will pass through different through holes repeatedly in epicoele
Flow between body and lower chamber.The now friction between hole wall and fluid and the intermolecular internal friction of fluid form damping to vibration
Power, makes automobile vibrational energy be converted into fluid heat energy, then is dispersed in air by shock absorber.
When this Hydraulic shock absorber is compressed, now vibroshock inner carrier 3 moves down.The volume reducing of lower chamber,
Oil pressure raises, and fluid flows through flowing valve and flows to upper cavity.Upper cavity has been accounted for a part of space by piston 3 bar, thus upper cavity
Increased volume is less than the volume that cavity of resorption reduces, and a part of fluid is then just pushed compression valve open, flowed back to oil storage cylinder.These valves are to oil
Saving formed the compressed motion of suspension damping force.Vibroshock is in wheel away from vehicle body, vibroshock Tensile, at this moment vibroshock
Piston 3 move up, oil pressure in epicoele body raises, and flowing valve is closed, and the fluid in epicoele body is pushed open under rebuilt valve flows into
Cavity.Due to the presence of piston 3 bar, the fluid coming from upper cavity stream is not enough to the volume increasing full of lower chamber, can make cavity of resorption
Body produces a vacuum, and at this moment the fluid in oil storage cylinder is pushed recuperation valve open and flow to lower chamber and supplemented.Section due to these valves
Stream acts on, and therefore plays damping action to when being suspended in and doing stretching exercise.
In this Hydraulic shock absorber, rebuilt valve and recuperation valve are to uphold valve group, and flowing valve and compression valve are compression valve group,
Being designed to of first elastic component 6, the second elastic component 10 and the 3rd elastic component 14 increases flow- through valve plate 7 respectively, restores valve block 8 and
The pretightning force of compensator valve plate 12, under same pressure, upholds the accordingly long straight joint gap of valve group and channel cross-sectional area summation is less than pressure
The accordingly long straight joint gap of contracting valve group and channel cross-sectional area summation, this makes the damping force that the extension stroke of amortisseur produces be more than pressure
The damping force of indention journey, reaches the requirement of rapid damping；First elastic component 6, the second elastic component 10 and the 3rd elastic component 14 simultaneously
Certain cushioning effect can also be played to vibration, decrease the generation of heat during vibration damping, improve the response speed of vibration damping
Degree.
Specific embodiment described herein is only explanation for example to present invention spirit.The affiliated technology of the present invention is led
The technical staff in domain can be made various modifications or supplement or replaced using similar mode to described specific embodiment
Generation, but the spirit without departing from the present invention or surmount scope defined in appended claims.
Claims (8)
1. a kind of Hydraulic shock absorber, described Hydraulic shock absorber includes cylinder barrel (1), connecting rod (2) and is fixed on connecting rod (2)
The piston (3) of one end, described piston (3) is located in described cylinder barrel (1) and the outer wall of described piston (3) is close to described cylinder barrel
(1) inwall, described piston (3) and connecting rod (2) can slide in described cylinder barrel (1) along cylinder barrel (1) axis direction, and it is special
Levy and be, described piston (3) is provided with the circulation valve opening (4) running through described piston (3) and restores valve opening (5), described piston
(3) upside is provided with the first elastic component (6) and the flow- through valve plate (7) closing described circulation valve opening (4), described first elastic component
(6) bottom is connected with the upper surface of described flow- through valve plate (7), the upper end of described first elastic component (6) and described connecting rod
(2) it is connected；The downside of described piston (3) is provided with will restore valve opening (5) the recovery valve block (8) closed and for by described rebuilt valve
The fixing recovery valve nut (9) of piece (8), is provided with the second bullet between the described bottom restored valve block (8) and restore valve nut (9)
Property part (10)；The bottom of described cylinder barrel (1) is provided with and seals against fixing compression valve seat (11), on described compression valve seat (11)
It is provided with compensator valve plate (12), valve rod (13), the 3rd elastic component (14) and the compensation valve opening (15) running through described compression valve seat (11),
Described valve rod (13) is connected with described compression valve seat (11), and described compensator valve plate (12) is upper located at described compression valve seat (11)
Side, the upper end of described 3rd elastic component (14) is connected with the upper end of described connecting rod (2), under described 3rd elastic component (14)
End is connected with the described upper surface restoring valve block (8).
2. a kind of Hydraulic shock absorber according to claim 1 is it is characterised in that the middle part of described piston (3) is provided with
The first through hole that described piston (3) is run through, described connecting rod (2) passes through and described piston (3) and connecting rod from described first through hole
(2) circumferentially fixed, the upside of described piston (3) is additionally provided with flowing valve backup washer (16), described flowing valve backup washer (16)
Ringwise and the inwall of described flowing valve backup washer (16) is fitted with the outer wall of described connecting rod (2), described flow- through valve plate (7) position
Between the lower end and the upper surface of described piston (3) of described flowing valve backup washer (16), and described flow- through valve plate (7) is interior
End is pressed abd fixed on the upper surface of described piston (3) by described flowing valve backup washer (16), described flowing valve backup washer
(16) upper end has first convex edge (17) vertical with connecting rod (2) axis, the bottom of described first elastic component (6) and institute
State flow- through valve plate (7) upper surface connect, and both junction points be located at described flow- through valve plate (7) outer end, described first
The upper end of elastic component (6) is connected with first convex edge (17) of described flowing valve backup washer (16).
3. a kind of Hydraulic shock absorber according to claim 1 is it is characterised in that described recovery valve block (8) is located at institute
State between the upper end restoring valve nut (9) and the lower surface of described piston (3), and the inner of described recovery valve block (8) is described
The upper end restoring valve nut (9) is pressed abd fixed on the lower surface of described piston (3)；The described downside restoring valve block (8) is provided with
Rebuilt valve backup washer (18), described rebuilt valve backup washer (18) ringwise and is set in the upper of described recovery valve nut (9)
The outside of end, it is convex that the lower end of described recovery valve nut (9) is provided with second vertical with the described axis restoring valve nut (9)
Along (19), the upper end of described second elastic component (10) is fixed on the lower surface of described rebuilt valve backup washer (18), and described the
The lower end of two elastic components (10) is connected with described the second convex edge (19) restored on valve nut (9).
4. a kind of Hydraulic shock absorber according to claim 1 or 2 or 3 is it is characterised in that described valve rod (13) runs through
Described compression valve seat (11), the outer wall of lower end salt valve rod (13) of described valve rod (13) is circumferentially provided with positioning convex (20), institute
The upper end stating valve rod (13) is fixed with compensation valve nut (21).
5. a kind of Hydraulic shock absorber according to claim 4 is it is characterised in that described compensator valve plate (12) is located at institute
State between the lower end compensating valve nut (21) and the upper surface of described compression valve seat (11), and the inner of described compensator valve plate (12)
It is pressed abd fixed on the upper surface of described compression valve seat (11) by described compensation valve nut (21), described compensation valve nut (21)
Upper end is provided with and described vertical the 3rd convex edge (22) in axis compensating valve nut (21), described 3rd elastic component (14) upper
End is connected with described 3rd convex edge (22), and the lower end of described 3rd elastic component (14) is solid with the upper surface of described compensator valve plate (12)
Even.
6. a kind of Hydraulic shock absorber according to claim 1 or 2 or 3 is it is characterised in that described compression valve seat (11)
On be additionally provided with compression valve block (23) and compression valve opening (24) that described compression valve seat (11) is run through, described compression valve block (23) sets
In described compression valve seat (11) downside and by described compression valve opening (24) closing, described positioning convex (20) and described compression valve
It is provided with limiting gasket (25), the external diameter of described limiting gasket (25) is less than the external diameter of described compression valve block (23) between piece (23).
7. a kind of Hydraulic shock absorber according to claim 1 or 2 or 3 is it is characterised in that described cylinder type hydraulic vibration damping
Device also includes surge drum (26) and sealing-plug (27), and described surge drum (26) is sheathed on described cylinder barrel (1) outward, described sealing-plug
(27) upper end seals fixation, the lower end of described sealing-plug (27) and described cylinder barrel (1) with the upper end of described surge drum (26)
Upper end is tightly connected, and has conduit (28) in described sealing-plug (27), and described conduit (28) is by described cylinder barrel (1) and surge drum
(26) connect.
8. a kind of Hydraulic shock absorber according to claim 7 is it is characterised in that described connecting rod (2) runs through described close
Blocking (27), the upper end of described sealing-plug (27) is fixed with sealing ring (29), and described sealing ring (29) is set in described connecting rod (2)
It is tightly connected above and with described connecting rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607872.3A CN106438821A (en) | 2016-07-14 | 2016-07-14 | Barrel type hydraulic shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610607872.3A CN106438821A (en) | 2016-07-14 | 2016-07-14 | Barrel type hydraulic shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106438821A true CN106438821A (en) | 2017-02-22 |
Family
ID=58184360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610607872.3A Pending CN106438821A (en) | 2016-07-14 | 2016-07-14 | Barrel type hydraulic shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438821A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989946A (en) * | 2017-12-28 | 2018-05-04 | 欧孚迪汽车设计武汉有限公司 | Hydro-pneumatic spring, the steering mechanism of wheel, wheel and electric car |
| CN108730400A (en) * | 2018-05-25 | 2018-11-02 | 北京理工大学 | The dual-tube shock absorber for keeping damping force using temperature control element and preventing cavitation from distorting |
| CN110259870A (en) * | 2019-06-28 | 2019-09-20 | 杭州金士顿实业有限公司 | Safety valve and its working method for seat damper |
| CN113958650A (en) * | 2021-10-25 | 2022-01-21 | 中电建路桥集团有限公司 | Damper for noise elimination and vibration reduction of building operation equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989946A (en) * | 2017-12-28 | 2018-05-04 | 欧孚迪汽车设计武汉有限公司 | Hydro-pneumatic spring, the steering mechanism of wheel, wheel and electric car |
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| CN108730400B (en) * | 2018-05-25 | 2019-12-06 | 北京理工大学 | Double-cylinder shock absorber for maintaining damping force and preventing cavitation distortion by using temperature control element |
| CN110259870A (en) * | 2019-06-28 | 2019-09-20 | 杭州金士顿实业有限公司 | Safety valve and its working method for seat damper |
| CN113958650A (en) * | 2021-10-25 | 2022-01-21 | 中电建路桥集团有限公司 | Damper for noise elimination and vibration reduction of building operation equipment |
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Application publication date: 20170222 |