CN2656714Y - Oil-guiding bidirectional action barrel vibration damper - Google Patents
Oil-guiding bidirectional action barrel vibration damper Download PDFInfo
- Publication number
- CN2656714Y CN2656714Y CN 03211431 CN03211431U CN2656714Y CN 2656714 Y CN2656714 Y CN 2656714Y CN 03211431 CN03211431 CN 03211431 CN 03211431 U CN03211431 U CN 03211431U CN 2656714 Y CN2656714 Y CN 2656714Y
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- Prior art keywords
- oil
- piston
- guide holder
- valve
- clutch release
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Abstract
A double adjustable shock absorber for oil guiding belongs to the technical field of shock absorbing and is suitable for vehicle, including an oil cylinder which contains a working cylinder. The two ends of the cylinder are respectively provided with a guide seat with an oil return hole and a compression valve base with a compensation valve as well as a compression valve. The compression valve is provided with a micro hole. The working cylinder contains a piston which is provided with a flow valve and a rebound valve. The piston is also provided with a micro-hole. In the middle of the piston is provided a piston rod which matches the guide seat. The working cylinder and the layer between the working cylinder and the oil cylinder are inflated with damping oil. The lower end of the oil return hole of the guide seat is provided with an oil conduit which conducts the air and the damping oil in the upper space of the guide seat downwards into the layer between the working cylinder and the oil cylinder and only conducts the damping oil in the layer upwards into the upper space of the guide seat. Therefore air is prevented from entering the working cylinder; and abrasion is reduced as the piston rod is lubricated, which reduces friction forces; therefore the performance and service life of the shock absorber is increased.
Description
Technical field
The utility model relates to a kind of double adjustable shock absorber, and particularly a kind of Oil Guide double adjustable shock absorber that is suitable for the haulage vehicle use belongs to antivibration area.
Background technique
At present, double adjustable shock absorber uses very extensive on various vehicles, and it is to utilize the interaction of liquid, piston and valve to slow down vibration, reaches the effect of vibration damping.Double adjustable shock absorber of the prior art is mainly by oil storage cylinder, clutch release slave cylinder, guide holder, the compression valve seat, composition such as piston and piston rod, clutch release slave cylinder is positioned at oil storage cylinder, guide holder and compression valve seat are contained in the two ends of clutch release slave cylinder respectively, be shaped on spill port on the guide holder, on the compression valve seat, recuperation valve is housed, compression valve, also be shaped on little port on the compression valve seat, flowing valve is housed on piston, rebound valve, also be shaped on little port on the piston, the piston rod that matches with guide holder is housed in the centre of piston, guide holder directly contact with piston rod or guide holder and piston rod between guide sleeve is housed, on the clutch release slave cylinder inner carrier, be full of damping oil down, the interlayer Lower Half between clutch release slave cylinder and the oil storage cylinder is filled with damping oil, the upper space of interlayer and the upper space of guide holder are full of air, and two-part space is interconnected.
Compress valve seat in the prior art and also have two kinds of forms: a kind of is to make the convex annular band on compression valve seat end face, is pressed with the opening valve block on the convex annular band and does not have a mouthful valve block, and the opening valve block is provided with little port; Another kind is to make the convex annular band on compression valve seat end face, and the convex annular band is provided with little port, and this little port laterally disconnects the convex annular band, and being pressed with on the convex annular band does not have a mouthful valve block.The compression valve seat of these two kinds of structures has and the above-mentioned identical function of use of compression valve seat that recuperation valve, compression valve are housed.
Piston also has two kinds of forms in the prior art: a kind of is to be shaped on the convex annular band on piston end face, is pressed with the opening valve block on the convex annular band and does not have a mouthful valve block, and the opening valve block is provided with little port; Another kind is to be shaped on the convex annular band on piston end face, is provided with little port on the convex annular band, and little port laterally disconnects the convex annular band, and being pressed with on the convex annular band does not have a mouthful valve block.The piston of these two kinds of structures has the function of use identical with the above-mentioned piston that flowing valve, rebound valve are housed.
The problem that this vibration damper exists is, when piston rod and guide holder wear and tear, when matching gap increases, perhaps because machining error when big, under the vehicle plateau, shock absorber piston rod is not stretched, the power that contracts or when being subjected to minimum retracting force, in the interlayer that is back to clutch release slave cylinder and oil storage cylinder that damping oil can be too much, make the top that slowly enters into clutch release slave cylinder the gap of air between piston rod and guide holder on guide holder top, in a single day vehicle runs into bigger jolting, piston rod will be subjected to bigger stretching or compressive force, at this moment air will be discharged rapidly from this gap in the clutch release slave cylinder, make the damping force of vibration damper produce sudden change, vehicle produces bigger vibration and abnormal sound.In addition, because air enters into the top of clutch release slave cylinder, also can cause clutch release slave cylinder internal damping oil level to descend, the lubricated generation of piston rod is interrupted, form dry friction, cause the resistance to motion of piston rod to increase, cause piston rod and guide holder heavy wear, and produce high temperature, make the damping oil charing, vibration damper loses effectiveness in vibration suppression, has reduced the working life of vibration damper.
The model utility content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and existing double adjustable shock absorber is improved, and a kind of good damping result is provided, the Oil Guide double adjustable shock absorber of long service life.
The utility model is achieved in that
It has an oil storage cylinder, clutch release slave cylinder is housed in oil storage cylinder, the two ends of clutch release slave cylinder are equipped with guide holder and compression valve seat respectively, be shaped on spill port on the guide holder, on the compression valve seat recuperation valve is housed, compression valve or on compression valve seat end face, make the convex annular band and be furnished with valve block, compression valve seat or valve block or convex annular band are provided with little port, piston also is housed in clutch release slave cylinder, flowing valve is housed on the piston, rebound valve or on piston end surface, make the convex annular band and be furnished with valve block, on piston or valve block or convex annular band, also be provided with little port, the piston rod that matches with guide holder is housed in the centre of piston, the piston rod that matches with guide holder is housed in the centre of piston, guide holder directly contact with piston rod or guide holder and piston rod between guide sleeve is housed, on the clutch release slave cylinder inner carrier, under be full of damping oil, interlayer Lower Half between clutch release slave cylinder and the oil storage cylinder is filled with damping oil, the spill port of guide holder is communicated with the space on guide holder top and clutch release slave cylinder with mezzanine space between the oil storage cylinder, be tightly connected in guide holder spill port lower end oil guide pipe is housed, and the pore of oil guide pipe communicates with the upper space of guide holder, and the oil guide pipe lower end extend in the damping oil of interlayer lower half portion between clutch release slave cylinder and the oil storage cylinder.When piston rod stretches fast or compresses: because piston, flowing valve, rebound valve, recuperation valve, the effect that the interaction of compression valve is upwards flowed clutch release slave cylinder internal damping oil is remarkable, cause relative the increasing of pressure of guide holder upper space by piston rod and the gap between the guide holder, at this moment oil guide pipe just imports to the air or the damping oil of guide holder upper space downwards in the damping oil of the interlayer between clutch release slave cylinder and the oil storage cylinder, the air that imports rises in the space of the interlayer first half after the oral area of oil guide pipe lower end, the damping oil that imports is blended into after the oral area of oil guide pipe lower end among the damping oil of interlayer Lower Half, gradually the air on guide holder top is all imported in the space of the interlayer first half under the quick effect that stretches or compress of piston rod.When piston rod during slack or low-speed retraction: because in the downward slow promotion and piston of deadweight, the piston of clutch release slave cylinder internal damping oil, the effect of little port flows downward clutch release slave cylinder internal damping oil on the compression valve seat effect is remarkable, cause relative reduction of pressure of guide holder upper space by piston rod and the gap between the guide holder, at this moment oil guide pipe just upwards imports to the damping oil of interlayer Lower Half between clutch release slave cylinder and the oil storage cylinder space on guide holder top, and the guide holder upper space is replenished.The oil that upwards imports has prevented that air from entering in the clutch release slave cylinder on the one hand, avoided absorber damping force to produce sudden change, it makes piston have no to hinder again on the other hand, continually obtain sufficient lubrication, reduced frictional resistance, reduce wearing and tearing, improved the usability and the working life of vibration damper.
Compared with prior art, the beneficial effect that the utlity model has is:
Because in the prior art, guide holder spill port lower end does not have oil guide pipe.The air of guide holder upper space and damping oil can be in spill port flow to interlayer between clutch release slave cylinder and the oil storage cylinder, air in the interlayer also can arrive the guide holder upper space by spill port, and then in the gap arrival clutch release slave cylinder by piston rod and guide holder, make the damping force of vibration damper produce sudden change, also interrupted simultaneously the lubricated of piston rod, increase frictional resistance, increased wearing and tearing, reduced working life.
Because in the prior art, also have the seal ring that matches with piston rod is installed on guide holder top, from the top flexible gap that has sealed between piston rod and the guide holder.Though this seal ring can stop the air on guide holder top to enter into clutch release slave cylinder, prevent that the damping force of vibration damper from producing sudden change, this seal ring has also hindered from guide holder top lubricated to piston rod, the working life that is unfavorable for improving vibration damper.
The utility model is tightly connected in the spill port lower end of guide holder oil guide pipe is housed, and the pore of oil guide pipe communicates with the upper space of guide holder, the oil guide pipe lower end extend in the damping oil of interlayer lower half portion between clutch release slave cylinder and the oil storage cylinder, this oil guide pipe can import to the air of guide holder upper space and damping oil downwards between clutch release slave cylinder and the oil storage cylinder in the interlayer, can only upwards import to the damping oil in the interlayer in the guide holder upper space again.The oil that upwards imports has prevented that air from entering in the clutch release slave cylinder on the one hand, avoided absorber damping force to produce sudden change, it makes the sufficient lubrication that obtains that piston rod has no to hinder, continual again on the other hand, reduced frictional resistance, reduce wearing and tearing, improved the usability and the working life of vibration damper.
Description of drawings
Fig. 1 is an embodiment's providing of the utility model a structural representation.
Fig. 2 is another embodiment's of providing of the utility model a structural representation.
Fig. 3, Fig. 4 are the schematic representation that the convex annular band is joined valve structure in the prior art identical with the function of use of piston shown in Figure 1 (6), flowing valve (7), rebound valve (15).
Fig. 5, Fig. 6 are the schematic representation that the convex annular band is joined valve structure in the prior art identical with the function of use of compression valve seat (8) shown in Figure 1, recuperation valve (9), compression valve (11).
Number in the figure is: 1. piston rod, 2. oil sealing, 3. guide holder, 4. spill port, 5. clutch release slave cylinder, 6. piston, 7. flowing valve 8. compresses valve seat, 9. recuperation valve, 10. oil through, 11. compression valve, 12. little ports, 13. little port, 14. oil storage cylinders, 15. rebound valves, 16. damping oil, 17. matching gaps, 18. upper spaces, 19. oil guide pipe, the convex annular band of 20. pistons, the opening valve block of 21. pistons, 22. the no mouth valve block of piston, the convex annular band of 23. compression valve seats, the opening valve block of 24. compression valve seats, 25. the no mouth valve block of compression valve seat, 26. little ports, 27. little ports, 28. little port, 29. little ports.
Embodiment
The embodiment who provides below in conjunction with accompanying drawing is described further structure of the present utility model and using process:
As shown in Figure 1, the utility model has an oil storage cylinder 14, and oil storage cylinder 14 is a drum shape, its end sealing; Clutch release slave cylinder 5 is housed in oil storage cylinder 14, the two ends of clutch release slave cylinder 5 are equipped with guide holder 3 and compression valve seat 8 respectively, sealing and fixing between the three, the edge of guide holder 3 is provided with spill port 4, below compression valve seat 8, oil through 10 is arranged, the lower space of compression valve seat 8 is connected with oil storage cylinder 14, thus the enclosed space that is interconnected in the inside and outside formation of clutch release slave cylinder 5; On compression valve seat 8 recuperation valve 9, compression valve 11 are housed, compression valve seat 8 is provided with little port 12, and the opening of wherein little port 12 is very little, and the cracking pressure of recuperation valve 9 is lower, and the cracking pressure of compression valve 11 is higher; Piston 6 also is housed in clutch release slave cylinder 5, flowing valve 7, rebound valve 15 are housed on the piston 6, also be shaped on little port 13 on the piston 6, the opening of wherein little port 13 is very little, and the cracking pressure of flowing valve 7 is lower, and the cracking pressure of rebound valve 15 is higher; The piston rod 1 that matches with guide holder 3 is housed in the centre of piston 6, and piston rod 1 has matching gap 17 with guide holder 3, and piston rod 1 stretches out from the end of oil storage cylinder 14, in order to prevent leakage of oil, in the end of oil storage cylinder 14 oil sealing 2 is housed also; In clutch release slave cylinder 5 and in the interlayer between clutch release slave cylinder 5 and the oil storage cylinder 14, be filled with damping oil 16, damping oil 16 in clutch release slave cylinder 5, the upper space and the lower space of piston 6 all be in full state, and only fill a part in the interlayer between clutch release slave cylinder 5 and oil storage cylinder 14, play regulating action so that utilize the variation of interlayer upper air volume that total measurement (volume) in the damper body is changed; Be tightly connected in the lower end of the spill port 4 of guide holder 3 oil guide pipe 19 is housed, and the pore of oil guide pipe 19 communicates with the upper space 18 of guide holder 3, the lower end of oil guide pipe 19 extend in the damping oil 16 of interlayer lower half portion between clutch release slave cylinder 5 and the oil storage cylinder 14.Oil guide pipe 19 can import to the air in guide holder 3 upper spaces 18 and damping oil downwards between clutch release slave cylinder 5 and the oil storage cylinder 14 in the interlayer, can only upwards import to the damping oil in the interlayer 16 in guide holder 3 upper spaces 18 again.The oil that upwards imports has prevented that air from entering in the clutch release slave cylinder 5 on the one hand, avoided absorber damping force to produce sudden change, it makes again that piston rod 1 is that have no to hinder, continual to obtain sufficient lubrication on the other hand, reduced frictional resistance, reduce wearing and tearing, improved the usability and the working life of vibration damper.
As shown in Figure 2, its structure such as embodiment 1, difference are that the spill port 4 of guide holder 3 is manufactured on the edge of guide holder 3, have become the shape of fluting in the edge of guide holder 3.
Fig. 3 and Fig. 4 show, also has in the prior art to make the convex annular band also be furnished with very thin valve block on piston end surface.This kind structure also has the function of use of piston shown in Figure 16, flowing valve 7, rebound valve 15.
As shown in Figure 3, Fig. 3 is the schematic representation of one of this mode of structure, it is mainly composed as follows: be shaped on convex annular band 20 on the end face of piston 6, be pressed with opening valve block 21 on the convex annular band 20 and do not have a mouthful valve block 22, opening valve block 21 is provided with little port 26, and the effect of little port 26 is identical with little port 13 on Fig. 1 piston (6).
As shown in Figure 4, Fig. 4 is two a schematic representation of this mode of structure, it is mainly composed as follows: be shaped on convex annular band 20 on the end face of piston 6, on convex annular band 20, be provided with little port 27, little port 27 laterally disconnects convex annular band 20, being pressed with on the convex annular band 20 does not have a mouthful valve block 22, and the effect of little port 27 is identical with little port 13 on Fig. 1 piston 6.
Fig. 5 and Fig. 6 show, also has in the prior art to make the convex annular band also be furnished with very thin valve block on compression valve seat end face.This kind structure also has the function of use of compression valve seat 8 shown in Figure 1, recuperation valve 9, compression valve 11.
As shown in Figure 5, Fig. 5 is the schematic representation of one of this mode of structure, it is mainly composed as follows: be shaped on convex annular band 23 on the end face of compression valve seat 8, be pressed with opening valve block 24 on the convex annular band 23 and do not have a mouthful valve block 25, opening valve block 24 is provided with little port 28, and the effect of little port 28 is identical with little port 12 that Fig. 1 compresses on the valve seat 8.
As shown in Figure 6, Fig. 6 is two a schematic representation of this mode of structure, and it is mainly composed as follows:
On the end face of compression valve seat 8, be shaped on convex annular band 23, on convex annular band 23, be provided with little port 29, little port 29 laterally disconnects convex annular band 23, and being pressed with on the convex annular band 23 does not have a mouthful valve block 25, and the effect of little port 29 is identical with little port 12 that Fig. 1 compresses on the valve seat 8.
Fig. 3, Fig. 4, Fig. 5 also has in the structure of Fig. 6 recuperation valve and compression valve are made as one, and flowing valve and rebound valve are made as one, guide sleeve is housed between guide holder and piston rod.
Claims (4)
1. Oil Guide double adjustable shock absorber, it has an oil storage cylinder (14), clutch release slave cylinder (5) is housed in oil storage cylinder (14), the two ends of clutch release slave cylinder (5) are equipped with guide holder (3) and compression valve seat (8) respectively, guide holder (3) is provided with spill port (4), on the compression valve seat (8) recuperation valve (9) is housed, compression valve (11) or on compression valve seat (8) end face, make convex annular band (23) and be furnished with valve block, compression valve seat (8) or valve block or convex annular band (23) are provided with little port, piston (6) also is housed in clutch release slave cylinder (5), flowing valve (7) is housed on the piston (6), rebound valve (15) or on piston (6) end face, make convex annular band (20) and be furnished with valve block, on piston (6) or valve block or convex annular band (20), also be provided with little port, the piston rod (1) that matches with guide holder (3) is housed in the centre of piston (6), guide holder (3) directly contact with piston rod (1) or guide holder (3) and piston rod (1) between guide sleeve is housed, in clutch release slave cylinder (5) and in the interlayer between clutch release slave cylinder (5) and the oil storage cylinder (14), be filled with damping oil (16), the lower end of returning axis hole (4) that it is characterized in that guide holder (3) is provided with oil guide pipe (19), wherein the pore of oil guide pipe (19) communicates with the upper space (18) of guide holder (3), and the lower end of oil guide pipe (19) extend in the damping oil (16) of interlayer lower half portion between clutch release slave cylinder (5) and the oil storage cylinder (14).
2. Oil Guide double adjustable shock absorber according to claim 1 is characterized in that the edge of guide holder (3) is provided with spill port (4).
3. Oil Guide double adjustable shock absorber according to claim 1 is characterized in that the edge of guide holder (3) is provided with spill port (4).
4. according to claim 1 or 2 or 3 described Oil Guide double adjustable shock absorbers, it is characterized in that the lower end of spill port (4) of guide holder (3) and oil guide pipe (19) are for being tightly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03211431 CN2656714Y (en) | 2003-02-19 | 2003-02-19 | Oil-guiding bidirectional action barrel vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03211431 CN2656714Y (en) | 2003-02-19 | 2003-02-19 | Oil-guiding bidirectional action barrel vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2656714Y true CN2656714Y (en) | 2004-11-17 |
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ID=34325586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03211431 Expired - Fee Related CN2656714Y (en) | 2003-02-19 | 2003-02-19 | Oil-guiding bidirectional action barrel vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2656714Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436858C (en) * | 2005-03-28 | 2008-11-26 | 萱场工业株式会社 | Double tube hydraulic shock absorber |
| CN101424308B (en) * | 2007-10-30 | 2012-05-23 | 株式会社昭和 | Hydraulic shock absorber |
| CN104583638A (en) * | 2012-06-21 | 2015-04-29 | Smc株式会社 | Bi-directional shock absorbing device |
| CN107630964A (en) * | 2017-09-20 | 2018-01-26 | 周根元 | A kind of hydraulic damper |
-
2003
- 2003-02-19 CN CN 03211431 patent/CN2656714Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100436858C (en) * | 2005-03-28 | 2008-11-26 | 萱场工业株式会社 | Double tube hydraulic shock absorber |
| CN101424308B (en) * | 2007-10-30 | 2012-05-23 | 株式会社昭和 | Hydraulic shock absorber |
| CN104583638A (en) * | 2012-06-21 | 2015-04-29 | Smc株式会社 | Bi-directional shock absorbing device |
| CN104583638B (en) * | 2012-06-21 | 2016-06-15 | Smc株式会社 | Bidirectional buffering |
| CN107630964A (en) * | 2017-09-20 | 2018-01-26 | 周根元 | A kind of hydraulic damper |
| CN107630964B (en) * | 2017-09-20 | 2023-08-11 | 肇庆市维德亚科技有限公司 | Hydraulic damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |