CN216478644U - Shock absorber valve system with low-speed multistage regulation characteristic - Google Patents
Shock absorber valve system with low-speed multistage regulation characteristic Download PDFInfo
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- CN216478644U CN216478644U CN202122853902.8U CN202122853902U CN216478644U CN 216478644 U CN216478644 U CN 216478644U CN 202122853902 U CN202122853902 U CN 202122853902U CN 216478644 U CN216478644 U CN 216478644U
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Abstract
The utility model relates to a shock absorber valve system with low-speed multi-stage regulation characteristics, which comprises a multi-section adjustable piston assembly and a compression valve assembly; the multi-section adjustable piston assembly comprises an upper limiting washer, a piston spring piece, an upper limiting piece, a piston liquid passing piece, a piston assembly, a double-valve-line piston, an inner valve line throttling piece, an inner valve line adjusting piece, an inner valve line limiting piece, an outer valve line throttling piece, an outer valve line adjusting piece, an outer valve line limiting piece, a lower limiting washer and a nut; the inner valve line of the bottom of the double-valve-line piston at the inner side of the flow hole is higher than the outer valve line at the outer side. The utility model solves the defect that the direction of the damping force of the traditional shock absorber can be adjusted in a low-speed movement process is less, realizes the multi-stage adjustment of the low-speed damping force of the shock absorber, provides more debugging supporting points for the adjustment and calibration of the operation stability and the comfort level of an automobile for a customer, and improves the customer satisfaction; the discontinuous point between the low-speed damping force and the middle-high speed damping force is eliminated, the stability of the automobile is improved, and the increasing demand of the vehicle suspension system on the comfort is met.
Description
Technical Field
The utility model relates to the technical field of shock absorbers, in particular to a shock absorber valve system with low-speed multistage regulation characteristics.
Background
In the judgment of the good and bad of a car, the comfort, the stability and the safety are important measurement standards. The suspension is used as a force transmission part connected between the automobile body and an axle (or a wheel), has great influence on the running stability, safety and comfort of the automobile and the adhesion performance of the automobile and the ground, is an important part for ensuring the running safety of the automobile, and the shock absorber is used as an important component part of the suspension, thereby providing great effects on the comfort and the stability of the automobile by the suspension.
The road surface on which the automobile runs cannot be absolutely flat, vibration is inevitably generated, drivers and passengers easily feel uncomfortable and tired due to the continuous vibration, and the shock absorber is designed for rapidly attenuating the vibration, can rapidly attenuate the vibration transmitted to the automobile body by the road surface, and improves the driving smoothness; the comfortable riding experience is provided for drivers and passengers, so that the drivers and the passengers are not easy to fatigue, and goods are not easy to damage; the impact load of related parts is reduced, and the abrasion is reduced; the tire grounding performance is improved, the tire always runs at high speed and jumps, and the running safety is improved; the stability of operation is improved when the vehicle is suddenly accelerated, suddenly braked and sharply turned.
The damping force of the automobile shock absorber is generally divided into three sections, namely low speed, medium speed and high speed according to the motion speed of the shock absorber. The low-speed damping force influences the stability of the automobile and directly influences the driving comfort. The conventional pure valve plate type valve system can only adjust the low-speed damping force through the flow area of the opening valve plate, and has two defects. Firstly, the flow area of the opening valve plate is fixed, namely the low-speed damping force can not be adjusted in a segmented mode; secondly, the change between the low-speed damping force and the medium-high speed damping force has a discontinuous point, namely a blow-off point, so that the automobile is not stable in the driving process, and discomfort is brought to drivers and passengers.
Disclosure of Invention
The present invention is directed to overcoming the deficiencies of the prior art and providing a shock absorber valve train having a low speed multi-stage adjustment feature.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a shock absorber valve system with low-speed multi-stage adjustment characteristics comprises a multi-section adjustable piston assembly and a compression valve assembly, wherein the multi-section adjustable piston assembly is assembled on a piston rod in an inner shock absorber cylinder;
the multi-section adjustable piston assembly comprises an upper limiting washer, a piston spring piece, an upper limiting piece, a piston liquid passing piece, a piston assembly, a double-valve-line piston, an inner valve-line throttling piece, an inner valve-line adjusting piece, an inner valve-line limiting piece, an outer valve-line throttling piece, an outer valve-line adjusting piece, an outer valve-line limiting piece, a lower limiting washer and a nut which are sequentially arranged on a piston rod from top to bottom;
the inner ring circumference of the piston assembly is provided with a plurality of inner holes, and the outer ring circumference is provided with a plurality of outer holes; the upper circumference of the double-valve-line piston is provided with a plurality of circulation holes, the circulation holes of the double-valve-line piston are correspondingly arranged with the inner hole of the piston assembly, and the inner valve line of the bottom of the double-valve-line piston at the inner side of the circulation holes is higher than the outer valve line at the outer side.
The height difference between the inner valve line and the outer valve line is 07 mm.
The inner holes of the piston assembly are eight, and the diameter of the inner holes is 25 mm.
Twelve outer holes of the piston assembly are 2mm in diameter.
The outer diameter of the piston assembly is 32mm, and the diameter of the center hole of the piston rod is 8 mm.
The external diameter of the double-valve-line piston is 27 mm.
The compression valve component comprises a compression valve lower limiting gasket, a compression valve lower limiting sheet, a compression valve adjusting sheet, a compression valve lower throttling sheet, a compression valve seat, a compression valve liquid passing sheet, a compression valve upper limiting sheet, a compression valve spring sheet, a compression valve upper limiting gasket and a compression valve spring seat, which are sequentially arranged on the rivet in a penetrating mode, and the compression valve seat is assembled at the bottom of the inner cylinder of the shock absorber.
The utility model has the beneficial effects that: the utility model solves the defect that the direction of the damping force of the traditional shock absorber can be adjusted in a low-speed movement process is less, realizes the multi-stage adjustment of the low-speed damping force of the shock absorber, provides more debugging supporting points for the adjustment and calibration of the operation stability and the comfort level of an automobile for a customer, and improves the customer satisfaction; the discontinuous point between the low-speed damping force and the middle-high speed damping force is eliminated, the stability of the automobile is improved, and the increasing demand of the vehicle suspension system on the comfort is met.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a multi-segment adjustable piston assembly;
FIG. 3 is a side, fragmentary view of various components of the multi-segment adjustable piston assembly;
FIG. 4 is a top, fragmentary view of various components of the multi-segment adjustable piston assembly;
FIG. 5 is a plan view of the piston assembly;
FIG. 6 is a cross-sectional view of the piston assembly;
FIG. 7 is a cross-sectional view of a dual valve line piston;
FIG. 8 is a schematic structural view of a compression valve assembly;
FIG. 9 is a side, fragmentary view of various components of the compression valve assembly;
FIG. 10 is a top, fragmentary view of various components of the compression valve assembly;
FIG. 11 is a first stage operational schematic of the shock absorber during rebound movement;
FIG. 12 is a schematic diagram of the second stage of operation of the shock absorber during a rebound movement;
FIG. 13 is a schematic diagram of the third stage of operation of the shock absorber during a rebound movement;
in the figure: 1-an upper confinement washer; 2-piston spring lamination; 3-upper limiting sheet; 4-piston liquid-through sheet; 5-a piston assembly; 5.1-inner hole; 5.2-outer pore; 6-double valve line piston; 6.1-flow-through holes; 6.2-inner valve line; 6.3-external valve line; 7-inner valve line throttle plate; 8-inner valve line regulating sheet; 9-an inner valve line limiting sheet; 10-outer valve line throttling plate; 11-an external valve line adjustment tab; 12-an outer valve line limiting sheet; 13-a lower limit washer; 14-a nut; 15-compression valve spring seat; 16-compression valve upper limit washer; 17-compressing the valve spring leaf; 18-upper limit tab of compression valve; 19-compressing the valve liquid-through sheet; 20-a compression valve seat; 21-compressing the lower throttle plate of the valve; 22-compression valve flap; 23-a lower limit tab of the compression valve; 24-compression of the valve lower limit washer; 25-riveting; 26-inner tube of vibration damper; 27-a piston rod;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The utility model is further illustrated with reference to the following figures and examples:
as shown in fig. 1 to 10, a shock absorber valve train having a low-speed multi-stage adjustment feature includes a multi-stage adjustable piston assembly mounted on a piston rod 27 within a shock absorber inner tube 26 and a compression valve assembly mounted at the bottom of the shock absorber inner tube 26;
the multi-section adjustable piston assembly comprises an upper limiting washer 1, a piston spring leaf 2, an upper limiting piece 3, a piston liquid passing piece 4, a piston assembly 5, a double-valve-line piston 6, an inner valve-line throttling piece 7, an inner valve-line adjusting piece 8, an inner valve-line limiting piece 9, an outer valve-line throttling piece 10, an outer valve-line adjusting piece 11, an outer valve-line limiting piece 12, a lower limiting washer 13 and a nut 14 which are sequentially arranged on a piston rod 27 from top to bottom;
a plurality of inner holes 5.1 are formed in the circumference of the inner ring of the piston assembly 5, and a plurality of outer holes 5.2 are formed in the circumference of the outer ring of the piston assembly 5; the upper circumference of the double-valve-line piston 6 is provided with a plurality of flow holes 6.1, the flow holes 6.1 of the double-valve-line piston 6 are correspondingly arranged with the inner holes 5.1 of the piston assembly 5, and the inner valve line 6.2 at the inner side of the flow hole 6.1 at the bottom of the double-valve-line piston 6 is higher than the outer valve line 6.3 at the outer side.
The height difference between the inner valve line 6.2 and the outer valve line 6.3 is 0.7 mm.
The inner holes 5.1 of the piston assembly 5 are eight and the diameter is 2.5 mm.
Twelve outer holes 5.2 of the piston assembly 5 are provided, and the diameter of each outer hole is 2 mm.
The outer diameter of the piston assembly 5 is 32mm and the diameter of the central hole for installing the piston rod 27 is 8 mm.
The outer diameter of the double-valve-line piston 6 is 27 mm.
The compression valve component comprises a compression valve lower limiting gasket 24, a compression valve lower limiting sheet 23, a compression valve adjusting sheet 22, a compression valve lower throttling sheet 21, a compression valve seat 20, a compression valve liquid passing sheet 19, a compression valve upper limiting sheet 18, a compression valve spring sheet 17, a compression valve upper limiting gasket 16 and a compression valve spring seat 15 which are sequentially arranged on a rivet 25 in a penetrating mode, and the compression valve seat 20 is assembled at the bottom of an inner shock absorber cylinder 26.
The utility model relates to a shock absorber, which mainly comprises a multi-section adjustable piston assembly and a compression valve assembly. The multi-section adjustable piston component comprises an upper limiting washer 1, a piston spring piece 2, an upper limiting piece 3, a piston liquid passing piece 4, a piston assembly 5, a double-valve-line piston 6, an inner valve-line throttling piece 7, an inner valve-line adjusting piece 8, an inner valve-line limiting piece 9, an outer valve-line throttling piece 10, an outer valve-line adjusting piece 11, an outer valve-line limiting piece 12, a lower limiting washer 13 and a nut 14. Eight phi 2.5 inner holes and twelve phi 2 outer holes are arranged on the piston assembly 5, the inner diameter of the piston assembly 5 is phi 8, the outer diameter is phi 32, and the piston assembly 5 adopts a multi-hole and large-hole design to ensure the maximum flow of oil liquid, so that the oil liquid cannot be a point for limiting the damping force of the piston. The part of the double-valve-line piston 6 different from a common piston is that the inner valve line 6.2 and the outer valve line 6.3 have a height difference of 0.7mm, so that the inner valve line 6.2 and the outer valve line 6.3 are independent into two main bodies, the inner valve line 6.2 can be independently adjusted, and the requirements of low-speed multi-section adjustability and smooth transition are met. The double-valve-line piston 6 is the key point for adjusting the damping force, and the valve line below the double-valve-line piston 6 must be perfectly matched with the valve line of the piston assembly 5, so that a leakage point cannot exist; the height difference of 0.7mm exists between the inner valve line 6.2 and the outer valve line 6.3 of the double-valve-line piston 6, and when the valve plate of the inner valve line 6.2 is selected, the total height of the valve plate cannot be larger than 0.7 mm; when the valve plate is adjusted, the oil liquid circulation of the outer valve line throttling plate 10 in unit time is larger than that of the inner valve line 6.2 in unit time after the valve is opened.
The principle is that when the movement speed of the shock absorber is gradually increased, the flow rate of oil liquid is controlled by the inner valve line throttling sheet 7 in the first stage, as shown in fig. 11; in the second stage, the inner valve line 6.2 is opened, and the flow rate of oil liquid is controlled by the inner valve line adjusting sheet 8, as shown in figure 12; in the third stage, the external valve line 6.3 is opened, and the flow rate of the oil is controlled by the external valve line regulating sheet 11, as shown in fig. 13. Therefore, the shock absorber can be smoothly transited from the low speed to the medium-high speed, more adjustable directions are added in a low-speed interval, the discontinuous point between the low speed and the medium-high speed is effectively prevented, and the comfort and the operation stability of the whole suspension system are enhanced.
The utility model solves the defect that the direction of the damping force of the traditional shock absorber can be adjusted in a low-speed movement process is less, realizes the multi-stage adjustment of the low-speed damping force of the shock absorber, provides more debugging supporting points for the adjustment and calibration of the operation stability and the comfort level of an automobile for a customer, and improves the customer satisfaction; the discontinuous point between the low-speed damping force and the middle-high speed damping force is eliminated, the stability of the automobile is improved, and the increasing demand of the vehicle suspension system on the comfort is met.
The utility model has been described in connection with the accompanying drawings, it is to be understood that the utility model is not limited to the specific embodiments disclosed, but is intended to cover various modifications, adaptations or uses of the utility model, and all such modifications and variations are within the scope of the utility model.
Claims (7)
1. A shock absorber valve train with low-speed multi-stage adjustment features comprises a multi-stage adjustable piston assembly mounted on a piston rod (27) in an inner shock absorber tube (26) and a compression valve assembly mounted at the bottom of the inner shock absorber tube (26);
the multi-section adjustable piston assembly comprises an upper limiting washer (1), a piston spring piece (2), an upper limiting piece (3), a piston liquid passing piece (4), a piston assembly (5), a double-valve-line piston (6), an inner valve-line throttling piece (7), an inner valve-line adjusting piece (8), an inner valve-line limiting piece (9), an outer valve-line throttling piece (10), an outer valve-line adjusting piece (11), an outer valve-line limiting piece (12), a lower limiting washer (13) and a nut (14) which are sequentially arranged on a piston rod (27) from top to bottom;
the inner ring circumference of the piston assembly (5) is provided with a plurality of inner holes (5.1), and the outer ring circumference is provided with a plurality of outer holes (5.2); the double-valve-line piston (6) is circumferentially provided with a plurality of circulation holes (6.1), the circulation holes (6.1) of the double-valve-line piston (6) are correspondingly arranged with inner holes (5.1) of the piston assembly (5), and the inner valve line (6.2) at the inner side of the circulation hole (6.1) at the bottom of the double-valve-line piston (6) is higher than the outer valve line (6.3) at the outer side.
2. A shock absorber valve train having a low speed multistage adjustment characteristic according to claim 1, wherein the difference in height between the inner valve line (6.2) and the outer valve line (6.3) is 0.7 mm.
3. A shock absorber valve train having a low speed multi-stage regulation characteristic as set forth in claim 2 wherein said piston assembly (5) has eight bores (5.1) with a diameter of 2.5 mm.
4. A shock absorber valve train having a low speed multistage adjustment characteristic as claimed in claim 3 wherein the outer bore (5.2) of the piston assembly (5) is twelve and 2mm in diameter.
5. A shock absorber valve train having a low speed multi-stage regulation characteristic as set forth in claim 4 wherein the outer diameter of the piston assembly (5) is 32mm and the diameter of the central bore of the mounting piston rod (27) is 8 mm.
6. A shock absorber valve train having a low speed multi-stage regulation characteristic as claimed in claim 5 wherein the double-spool piston (6) has an outer diameter of 27 mm.
7. The shock absorber valve system with the low-speed multi-stage regulation characteristic as claimed in claim 6, wherein the compression valve assembly comprises a compression valve lower limiting washer (24), a compression valve lower limiting sheet (23), a compression valve regulating sheet (22), a compression valve lower throttling sheet (21), a compression valve seat (20), a compression valve liquid passing sheet (19), a compression valve upper limiting sheet (18), a compression valve spring sheet (17), a compression valve upper limiting washer (16) and a compression valve spring seat (15) which are sequentially arranged on a rivet (25), and the compression valve seat (20) is assembled at the bottom of the shock absorber inner cylinder (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122853902.8U CN216478644U (en) | 2021-11-22 | 2021-11-22 | Shock absorber valve system with low-speed multistage regulation characteristic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122853902.8U CN216478644U (en) | 2021-11-22 | 2021-11-22 | Shock absorber valve system with low-speed multistage regulation characteristic |
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| Publication Number | Publication Date |
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| CN216478644U true CN216478644U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122853902.8U Active CN216478644U (en) | 2021-11-22 | 2021-11-22 | Shock absorber valve system with low-speed multistage regulation characteristic |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607723A (en) * | 2022-05-11 | 2022-06-10 | 江苏科曼赛特减振器有限公司 | High-low speed compression damping adjustable valve system assembly structure |
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2021
- 2021-11-22 CN CN202122853902.8U patent/CN216478644U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607723A (en) * | 2022-05-11 | 2022-06-10 | 江苏科曼赛特减振器有限公司 | High-low speed compression damping adjustable valve system assembly structure |
| CN114607723B (en) * | 2022-05-11 | 2022-07-08 | 江苏科曼赛特减振器有限公司 | High-low speed compression damping adjustable valve system assembly structure |
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