CN207554680U - A kind of damper compression hydraulic buffer gear - Google Patents
A kind of damper compression hydraulic buffer gear Download PDFInfo
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- CN207554680U CN207554680U CN201721692212.6U CN201721692212U CN207554680U CN 207554680 U CN207554680 U CN 207554680U CN 201721692212 U CN201721692212 U CN 201721692212U CN 207554680 U CN207554680 U CN 207554680U
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- China
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- cushion
- working cylinder
- cushion dashpot
- piston rod
- lug boss
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Abstract
A kind of damper compression hydraulic buffer gear,Including working cylinder and the piston rod being slidably arranged in working cylinder,Sealing mechanism is equipped between piston rod top and working cylinder,Underpart of the piston rod is equipped with piston valve,Working cylinder lower end is equipped with compression valve,The cushion dashpot of upper end opening is equipped in working cylinder,Piston-rod lower end lateral surface is circumferentially with first annular lug boss along it,When first annular lug boss enters cushion dashpot,Part in cushion dashpot below first annular lug boss forms the first cushion chamber,Cushion dashpot upper surface,The second cushion chamber is formed between working cylinder upper cylinder and piston rod,Cushion dashpot lateral wall,Third cushion chamber is formed between cushion dashpot bottom surface and working cylinder lower cylinders,Cushion dashpot is equipped with the oil transportation hole of the second cushion chamber of connection and third cushion chamber,First annular lug boss lateral surface and/or cushion dashpot upper inner face are equipped with the oil-returning structure of the first cushion chamber of connection and the second cushion chamber.
Description
Technical field
The utility model is related to vibration absorber more particularly to damper compression hydraulic buffer gears.
Background technology
In vehicle travel process, the piston rod of damper moves up and down damper, and fluid is driven to pass through piston valve and pressure
Contracting valve generates damping force, absorbs the vibrational energy of vehicle, ensure that the comfort for multiplying and driving.Due to the work(of damper in the car
It can so that piston rod does straight reciprocating motion always relative to working cylinder.Therefore, it just necessarily requires when wheel moves up and down,
The limit is moved up and down to wheel by damper realization and carries out cushioning restraint.Damper not only acts as vibration isolation effect, also reaches to vehicle
The bounce limit of wheel carries out cushioning restraint function；But it in excessive bumpy road, needs by the buffer of damper outside or inside
Structure come inhibit vehicle body shake and wheel upper jump, it is ensured that the comfort and stability of running car.
Piston rod can directly cause to impact to compression valve when encountering pitchpole simultaneously, influence service life, therefore existing
Damper in can buffer gear is set between piston rod and compression valve, conventional damper internal damping mechanism, some are
Spring buffer, but with the increase of usage time, spring easily generates attenuation, and pooling feature declines, and brings noise, can not be very
Good solves the problems, such as that damper service life is short.
Utility model content
For defect in the prior art, the purpose of this utility model is to provide a kind of damper compression hydraulics
Buffer gear, service life are long.
To realize above-mentioned purpose of utility model, the technical solution adopted in the utility model is：A kind of damper compression liquid
Buffer gear is pressed, including working cylinder and the piston rod being slidably arranged in working cylinder, is equipped between piston rod top and working cylinder
Sealing mechanism, underpart of the piston rod are equipped with piston valve, and working cylinder lower end is equipped with compression valve, the buffering of upper end opening is equipped in working cylinder
Cylinder, piston-rod lower end lateral surface are circumferentially with first annular lug boss along it, when first annular lug boss enters cushion dashpot, delay
It rushes the part in cylinder below first annular lug boss and forms the first cushion chamber, cushion dashpot upper surface, working cylinder upper cylinder
The second cushion chamber is formed between piston rod, is formed between cushion dashpot lateral wall, cushion dashpot bottom surface and working cylinder lower cylinders
Three cushion chambers, cushion dashpot are equipped with the oil transportation hole of the second cushion chamber of connection and third cushion chamber, first annular lug boss lateral surface
And/or cushion dashpot upper inner face is equipped with the oil-returning structure of the first cushion chamber of connection and the second cushion chamber.
When only when first annular lug boss lateral surface is equipped with oil-returning structure, underpart of the piston rod lateral surface is circumferentially with along it
Second annular relief, the second annular relief is between piston valve and first annular lug boss, when the second annular relief
During into cushion dashpot, the second annular relief seals the opening of cushion dashpot upper end.
The piston-rod lower end is equipped with the profile nut being connected through a screw thread with piston rod, first annular lug boss and second
Annular relief is arranged on profile nut.
The first annular lug boss is arc convex, and first annular lug boss lower end is concordant with profile nut lower end.
The cushion dashpot upper end is equipped with turnup structure, and oil transportation hole is arranged on turnup structure.
The oil transportation hole is circumferentially uniformly distributed along cushion dashpot.
The working cylinder is two sections formula structure, and the epimere and hypomere of working cylinder are respectively sleeved at the flange knot of cushion dashpot
A complete working cylinder is formed on structure.
The epimere and hypomere of the working cylinder are interference fitted with the turnup structure of cushion dashpot.
The cushion dashpot is close to working cylinder bottom.
The oil-returning structure is oil-recovery tank.
The utility model is simple in structure, and manufacture is at low cost, and prevailing roadway when driving, above cushion dashpot back and forth transport by piston rod
Dynamic, resistance is smaller, and the suspension of vehicle is softer at this time, and passenger inside the vehicle's seating is pleasant, and when encountering pitchpole, piston rod is fast
Speed moves downward, and profile nut enters in cushion dashpot, and the hydraulic oil in cushion dashpot is moved downward by compression increase piston rod
Resistance reduces impact of the piston rod to piston valve and compression valve, increases the service life of the present apparatus, at the same decrease passenger by
The severe jolt impact arrived, improves riding comfort.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is working condition when the utility model prevailing roadway uses；
Working condition when Fig. 3 is the utility model pitchpole pavement usage；
Fig. 4 is 2 structure diagram of the utility model embodiment；
Fig. 5 is 3 structure diagram of the utility model embodiment.
Specific embodiment
As shown in Figure 1 to Figure 3, a kind of damper compression hydraulic buffer gear including working cylinder 1 and is slidably arranged in work
Make the piston rod 2 in cylinder 1, sealing mechanism 3 is equipped between 2 top of piston rod and working cylinder 1,2 lower part of piston rod is equipped with piston valve
4,1 lower end of working cylinder is equipped with compression valve 5, is equipped with the cushion dashpot 6 of upper end opening in working cylinder 1,2 lower end outside face of piston rod along its
First annular lug boss 7 is circumferentially with, when first annular lug boss 7 enters cushion dashpot 6, is located in cushion dashpot 6 first annular
The part of 7 lower section of lug boss forms the first cushion chamber 8, shape between 6 upper surface of cushion dashpot, 1 upper cylinder of working cylinder and piston rod 2
Into the second cushion chamber 9, third cushion chamber 10 is formed between 1 lower cylinders of 6 lateral wall of cushion dashpot, 6 bottom surface of cushion dashpot and working cylinder,
Cushion dashpot 6 is equipped with the oil transportation hole 11 of the second cushion chamber of connection 9 and third cushion chamber 10, when the vehicle of the installation present apparatus is common
During road traveling, piston rod 2 moves up and down above cushion dashpot 6, at this time the present apparatus and Normal hydraulic damper working method phase
Together, as the prior art, details are not described herein, generates resistance by the hydraulic oil in 4 compression work cylinder 1 of piston valve, reaches and subtract
The purpose shaken.
Embodiment 1
2 lower outside face of piston rod is circumferentially with the second annular relief 13 along it, and 2 lower end of piston rod is equipped with and piston rod
2 profile nuts 14 being connected through a screw thread, first annular 7 and second annular relief 13 of lug boss are arranged at profile nut 14
On.First annular lug boss 7 is arc convex, and 7 lower end of first annular lug boss is concordant with 14 lower end of profile nut, makes abnormal shape
14 lower end of nut from top to bottom forms a contraction structure, is entered in cushion dashpot 6 convenient for profile nut 14.First annular protrusion
7 lateral surface of portion is equipped with the oil-recovery tank 12 of the first cushion chamber 8 of connection and the second cushion chamber 9.Second annular relief 13 is located at piston
Between valve 4 and first annular lug boss 7, when the second annular relief 13 enters cushion dashpot 6, the second annular relief 13 will be slow
The opening for rushing 6 upper end of cylinder is closed.
When encountering pitchpole, piston rod 2 drive 14 sharp downward movement of profile nut, when first annular lug boss 7 into
When entering the first cushion chamber 8, profile nut 14 compresses the hydraulic oil in the first cushion chamber 8, and piston rod is simultaneously by piston valve 4 at this time
With the resistance generated at 14 liang of profile nut, the resistance that piston rod 2 is subject to becomes larger, and has buffered the impact force of the generation of piston rod 2, returns
Oil groove 12 is circumferentially uniformly distributed around profile nut 14, and oil-recovery tank 12 is vertically extending, and the hydraulic oil in the first cushion chamber 8 is pressed
Enter the second cushion chamber 9 from oil-recovery tank 12 after contracting, hydraulic oil when oil-recovery tank 12 is wider, quantity is more in first cushion chamber 8 returns
Speed oil is faster, and the resistance that profile nut 14 is subject to is with regard to smaller, slower, the impact that passenger experiences of 2 speed of piston rod reduction
Power is smaller, and seating is more comfortable, but the stroke that piston rod 2 moves at this time is relatively long, and the inclination of vehicle or shaking amplitude are larger,
It is unfavorable for manipulation and the stabilization of vehicle；Hydraulic oil oil return speed when oil-recovery tank 12 is narrower, quantity is fewer in first cushion chamber 8 is more
Slowly, the resistance that profile nut 14 is subject to is bigger, and 2 speed of piston rod reduces faster, and the impact force that passenger experiences is larger, no
Conducive to riding comfort, but the stroke that piston rod 2 moves at this time is relatively short, and the inclination of vehicle or shaking amplitude are smaller, favorably
Manipulation and stabilization in vehicle, therefore can meet the needs of different vehicle by adjusting the width and quantity of oil-recovery tank 12, expand
The big use scope of the present apparatus；When the second annular relief 13 enters cushion dashpot 6,12 and second cushion chamber 9 of oil-recovery tank is disconnected
It opens, while the second annular relief 13, by the closure of openings of 6 upper end of cushion dashpot, the first cushion chamber 8 becomes a closed oil pocket, this
When piston rod 2 piston rod 2 by larger resistance, will be made to stop, but sealing mechanism 3, piston valve 4 and compression valve 5 at this time rapidly
Outside cushion dashpot 6, its spoilage can't be reduced, while without elastic portion in the present apparatus by huge impact force
Part the situation of performance degradation will not occur, therefore present apparatus service life is longer with the increase of usage time.In addition,
When encountering pitchpole, as first annular 7 and second annular relief 13 of lug boss is sequentially entered in cushion dashpot 6, piston rod 2
The resistance being subject to gradually increases, and interior passenger is made not improved riding comfort by loftier impact force.
6 upper end of cushion dashpot is equipped with turnup structure 15, and oil transportation hole 11 is arranged on turnup structure 15, and oil transportation hole 11 is around flange knot
Structure 15 is circumferential to be uniformly distributed, and the second cushion chamber 9 is connected with third cushion chamber 10,
Working cylinder 1 is two sections formula structure, and the epimere and hypomere of working cylinder 1 are respectively sleeved at the flange knot of cushion dashpot 6
A complete working cylinder 1 is formed on structure 15, convenient for the installation of cushion dashpot 6, the epimere and hypomere of working cylinder 1 with cushion dashpot 6
Turnup structure 15 be interference fitted, it is easy for installation, and turnup structure 15 have thicker thickness, make working cylinder 1 epimere and under
Section has longer connecting portion with turnup structure 15, so as to which the epimere of working cylinder 1 and hypomere be made to have better concentricity；Buffering
Cylinder 6 makes piston rod 2 have longer stroke close to 1 bottom of working cylinder.
Embodiment 2
First annular lug boss 7 is arc convex, and 7 lower end of first annular lug boss is concordant with 14 lower end of profile nut,
14 lower end of profile nut is made from top to bottom to form a contraction structure, is entered in cushion dashpot 6 convenient for profile nut 14.Cushion dashpot
6 upper inner walls are equipped with oil-recovery tank 16,
When encountering pitchpole, piston rod 2 drive 14 sharp downward movement of profile nut, when first annular lug boss 7 into
When entering the first cushion chamber 8, profile nut 14 compresses the hydraulic oil in the first cushion chamber 8, and piston rod is simultaneously by piston valve 4 at this time
With the resistance generated at 14 liang of profile nut, the resistance that piston rod 2 is subject to becomes larger, and the impact force that piston rod 2 generates becomes smaller, oil return
Slot 16 is circumferentially uniformly distributed around cushion dashpot 6, and oil-recovery tank 16 is vertically extending, after the hydraulic oil in the first cushion chamber 8 is compressed
Enter the second cushion chamber 9 from oil-recovery tank 16, hydraulic oil oil return speed when oil-recovery tank 16 is wider, quantity is more in first cushion chamber 8
Degree it is faster, the resistance that profile nut 14 is subject to regard to smaller, 2 speed of piston rod reduce it is slower, the impact force that passenger experiences compared with
Small, seating is more comfortable, but the stroke that piston rod 2 moves at this time is relatively long, and the inclination of vehicle or shaking amplitude are larger, unfavorable
Manipulation and stabilization in vehicle；Hydraulic oil oil return speed when oil-recovery tank 16 is narrower, quantity is fewer in first cushion chamber 8 is slower,
The resistance that profile nut 14 is subject to is bigger, and 2 speed of piston rod reduces faster, and the impact force that passenger experiences is larger, unfavorable
In riding comfort, but the stroke that piston rod 2 moves at this time is relatively short, and the inclination of vehicle or shaking amplitude are smaller, are conducive to
The manipulation of vehicle, therefore can meet the needs of different vehicle by adjusting the width and quantity of oil-recovery tank 16, expand this dress
The use scope put；
When first annular lug boss 7 moves downwardly to 16 lower section of oil-recovery tank, oil-recovery tank 16 is disconnected with the first cushion chamber 8,
First annular lug boss 7 is by the closure of openings of cushion dashpot 6 simultaneously, and the first cushion chamber 8 becomes an oil closed cavity, at this time piston rod
2, by by larger resistance, make piston rod 2 stop rapidly, but sealing mechanism 3, piston valve 4 and compression valve 5 are located at buffering at this time
Outside cylinder 6, its spoilage can't be reduced by huge impact force, while without elastomeric element in the present apparatus, with making
The situation of performance degradation will not occur, therefore present apparatus service life is longer with the increase of time.In addition, encountering pitchpole
When, as first annular lug boss 7 enters cushion dashpot 66 lower part of cushion dashpot, piston rod 2 are moved to first annular lug boss 7
The resistance being subject to gradually increases, and interior passenger is made not improved riding comfort by loftier impact force.
6 upper end of cushion dashpot is equipped with turnup structure 15, and oil transportation hole 11 is arranged on turnup structure 15, and oil transportation hole 11 is around flange knot
Structure 15 is circumferential to be uniformly distributed, and the second cushion chamber 9 is connected with third cushion chamber 10,
Working cylinder 1 is two sections formula structure, and the epimere and hypomere of working cylinder 1 are respectively sleeved at the flange knot of cushion dashpot 6
A complete working cylinder 1 is formed on structure 15, convenient for the installation of cushion dashpot 6, the epimere and hypomere of working cylinder 1 with cushion dashpot 6
Turnup structure 15 be interference fitted, it is easy for installation, and turnup structure 15 have thicker thickness, make working cylinder 1 epimere and under
Section has longer connecting portion with turnup structure 15, so as to which the epimere of working cylinder 1 and hypomere be made to have better concentricity；Buffering
Cylinder 6 makes piston rod 2 have longer stroke close to 1 bottom of working cylinder.
Embodiment 3
First annular lug boss 7 is arc convex, and 7 lower end of first annular lug boss is concordant with 14 lower end of profile nut,
14 lower end of profile nut is made from top to bottom to form a contraction structure, is entered in cushion dashpot 6 convenient for profile nut 14.First ring
7 lateral surface of shape lug boss and 6 upper inner wall of cushion dashpot are respectively equipped with oil-recovery tank 17 and oil-recovery tank 18,
When encountering pitchpole, piston rod 2 drive 14 sharp downward movement of profile nut, when first annular lug boss 7 into
When entering the first cushion chamber 8, profile nut 14 compresses the hydraulic oil in the first cushion chamber 8, and piston rod is simultaneously by piston valve 4 at this time
With the resistance generated at 14 liang of profile nut, the resistance that piston rod 2 is subject to becomes larger, and the impact force that piston rod 2 generates becomes smaller, oil return
Slot 18 is circumferentially uniformly distributed around cushion dashpot 6, and oil-recovery tank 18 and oil-recovery tank 17 are vertically extending, the hydraulic pressure in the first cushion chamber 8
Oil from oil-recovery tank 18 and oil-recovery tank 17 enters the second cushion chamber 9 after being compressed, oil-recovery tank 18 and oil-recovery tank 17 is wider, quantity more
Hydraulic oil oil return speed when more in first cushion chamber 8 is faster, and the resistance that profile nut 14 is subject to is with regard to smaller, 2 speed of piston rod
What is reduced is slower, and the impact force that passenger experiences is smaller, and seating is more comfortable, but the stroke that piston rod 2 moves at this time is relatively
Long, the inclination of vehicle or shaking amplitude are larger, are unfavorable for manipulation and the stabilization of vehicle；Oil-recovery tank 18 and oil-recovery tank 17 are narrower, count
Hydraulic oil oil return speed when amount is fewer in first cushion chamber 8 is slower, and the resistance that profile nut 14 is subject to is bigger, piston rod 2
Speed reduces faster, and the impact force that passenger experiences is larger, is unfavorable for riding comfort, but the row that piston rod 2 moves at this time
Journey is relatively short, and the inclination of vehicle or shaking amplitude are smaller, is conducive to manipulation and the stabilization of vehicle, therefore can be by adjusting oil return
The width of slot 18 and oil-recovery tank 17 meets the needs of different vehicle with quantity, expands the use scope of the present apparatus；
When first annular lug boss 7 moves downwardly to 18 lower section of oil-recovery tank, oil-recovery tank 18 is detached from the first cushion chamber 8,
Hydraulic oil in first cushion chamber 8 enters from oil-recovery tank 17 in the second cushion chamber 9, due to the reduction of oil-returning structure quantity, at this time
The resistance that piston rod 2 is subject to further increases, and piston rod 2 is made to stop rapidly, but sealing mechanism 3, piston valve 4 and compression valve at this time
5 are located at outside cushion dashpot 6, can't be reduced its spoilage, while without elastic portion in the present apparatus by huge impact force
Part the situation of performance degradation will not occur, therefore present apparatus service life is longer with the increase of usage time.In addition,
When encountering pitchpole, moved under cushion dashpot 6 to first annular lug boss 7 as first annular lug boss 7 enters cushion dashpot 6
Portion, the resistance that piston rod 2 is subject to gradually increase, and interior passenger is made not improved seating by loftier impact force
Comfort.
6 upper end of cushion dashpot is equipped with turnup structure 15, and oil transportation hole 11 is arranged on turnup structure 15, and oil transportation hole 11 is around flange knot
Structure 15 is circumferential to be uniformly distributed, and the second cushion chamber 9 is connected with third cushion chamber 10,
Working cylinder 1 is two sections formula structure, and the epimere and hypomere of working cylinder 1 are respectively sleeved at the flange knot of cushion dashpot 6
A complete working cylinder 1 is formed on structure 15, convenient for the installation of cushion dashpot 6, the epimere and hypomere of working cylinder 1 with cushion dashpot 6
Turnup structure 15 be interference fitted, it is easy for installation, and turnup structure 15 have thicker thickness, make working cylinder 1 epimere and under
Section has longer connecting portion with turnup structure 15, so as to which the epimere of working cylinder 1 and hypomere be made to have better concentricity；Buffering
Cylinder 6 makes piston rod 2 have longer stroke close to 1 bottom of working cylinder.
Claims (10)
1. a kind of damper compression hydraulic buffer gear, living including working cylinder and the piston rod being slidably arranged in working cylinder
Sealing mechanism is equipped between stopper rod top and working cylinder, underpart of the piston rod is equipped with piston valve, and working cylinder lower end is equipped with compression valve,
It is characterized in that：The cushion dashpot of upper end opening is equipped in working cylinder, piston-rod lower end lateral surface is circumferentially with first annular convex along it
The portion of rising, when first annular lug boss enters cushion dashpot, the part in cushion dashpot below first annular lug boss forms the
One cushion chamber, forms the second cushion chamber between cushion dashpot upper surface, working cylinder upper cylinder and piston rod, cushion dashpot lateral wall,
Third cushion chamber is formed between cushion dashpot bottom surface and working cylinder lower cylinders, cushion dashpot is equipped with the second cushion chamber of connection and third
The oil transportation hole of cushion chamber, first annular lug boss lateral surface and/or cushion dashpot upper inner face be equipped with connection the first cushion chamber with
The oil-returning structure of second cushion chamber.
2. a kind of damper compression hydraulic buffer gear according to claim 1, it is characterised in that：When only in the first ring
When shape lug boss lateral surface is equipped with oil-returning structure, underpart of the piston rod lateral surface is circumferentially with the second annular relief along it, and second
Annular relief is between piston valve and first annular lug boss, when the second annular relief enters cushion dashpot, the second ring
Shape lug boss is closed by the opening of cushion dashpot upper end.
3. a kind of damper compression hydraulic buffer gear according to claim 2, it is characterised in that：Under the piston rod
End is equipped with the profile nut being connected through a screw thread with piston rod, and first annular lug boss and the second annular relief are arranged at different
On type nut.
4. a kind of damper compression hydraulic buffer gear according to claim 3, it is characterised in that：It is described first annular
Lug boss is arc convex, and first annular lug boss lower end is concordant with profile nut lower end.
5. a kind of damper compression hydraulic buffer gear according to claim 1, it is characterised in that：On the cushion dashpot
End is equipped with turnup structure, and oil transportation hole is arranged on turnup structure.
6. a kind of damper compression hydraulic buffer gear according to claim 5, it is characterised in that：Oil transportation hole edge
Cushion dashpot is circumferentially uniformly distributed.
7. a kind of damper compression hydraulic buffer gear according to claim 5, it is characterised in that：The working cylinder is
Two sections formula structure, the epimere and hypomere of working cylinder are respectively sleeved at one complete work of formation on the turnup structure of cushion dashpot
Make cylinder.
8. a kind of damper compression hydraulic buffer gear according to claim 5, it is characterised in that：The working cylinder
Epimere and hypomere are interference fitted with the turnup structure of cushion dashpot.
9. a kind of damper compression hydraulic buffer gear according to claim 1, it is characterised in that：The cushion dashpot leans on
Nearly working cylinder bottom.
10. a kind of damper compression hydraulic buffer gear according to claim 1, it is characterised in that：The oil return knot
Structure is oil-recovery tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721692212.6U CN207554680U (en) | 2017-12-07 | 2017-12-07 | A kind of damper compression hydraulic buffer gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721692212.6U CN207554680U (en) | 2017-12-07 | 2017-12-07 | A kind of damper compression hydraulic buffer gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207554680U true CN207554680U (en) | 2018-06-29 |
Family
ID=62666225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721692212.6U Active CN207554680U (en) | 2017-12-07 | 2017-12-07 | A kind of damper compression hydraulic buffer gear |
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| Country | Link |
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| CN (1) | CN207554680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830101A (en) * | 2017-12-07 | 2018-03-23 | 南阳淅减汽车减振器有限公司 | A kind of shock absorber compression hydraulic buffer gear |
-
2017
- 2017-12-07 CN CN201721692212.6U patent/CN207554680U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107830101A (en) * | 2017-12-07 | 2018-03-23 | 南阳淅减汽车减振器有限公司 | A kind of shock absorber compression hydraulic buffer gear |
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