CN116006620A - Piston, adjustable valve, shock absorber and control method for hydraulic oil of shock absorber - Google Patents
Piston, adjustable valve, shock absorber and control method for hydraulic oil of shock absorber Download PDFInfo
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- CN116006620A CN116006620A CN202211588590.5A CN202211588590A CN116006620A CN 116006620 A CN116006620 A CN 116006620A CN 202211588590 A CN202211588590 A CN 202211588590A CN 116006620 A CN116006620 A CN 116006620A
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Abstract
The application relates to the technical field of vibration absorbers, in particular to a piston, an adjustable valve, a vibration absorber and a regulating and controlling method for hydraulic oil of the vibration absorber. The piston comprises a piston main body, a first boss is protruded at the central axis of the piston main body and at the circulation side, and a through shaft hole for a piston rod to pass through is formed along the central axis extension direction of the first boss; the piston main body is provided with a first through hole close to the central axis and a second through hole far away from the central axis along the radial direction, and the first through hole and the second through hole are respectively distributed at intervals in the circumferential direction; a second boss is arranged at the position of the circulation side corresponding to the second through hole, and a second conduction groove communicated with the second through hole is formed in the second boss; a first conduction groove capable of being conducted with the first through hole is formed between the adjacent second bosses; the edge of the second conducting groove is protruded with a convex edge, and a third conducting groove is formed in the convex edge. In summary, when the adjustable valve is applied to a shock absorber, both a restoring damping force and a compression damping force can be provided.
Description
Technical Field
The application relates to the technical field of vibration absorbers, in particular to a piston, an adjustable valve, a vibration absorber and a regulating and controlling method for hydraulic oil of the vibration absorber.
Background
Shock absorbers (absorbers) are used to suppress oscillations and impacts from the road surface when the springs rebound after absorbing shocks. The damping device is widely used for automobiles, and is used for accelerating the damping of the vibration of the frames and the automobile bodies so as to improve the running smoothness of the automobiles.
The existing valve system is a circulation valve structure formed by combining and combining valve plates and spring pieces, the structural performance is single, the valve system can only provide the adjustment of the restoring damping force and cannot provide the adjustment of the compression damping force, for example, the structure disclosed in patent number 201220405524.5, the restoring valve system of the structure cannot provide the compression damping force, the circulation side of the valve system only plays a sealing role, and the compression damping force is provided by the compression valve alone.
However, with the development of the technology in the vibration absorber industry, the performance requirements of various vehicle types on the vibration absorber are higher and higher, and the original valve system structure with the spring cannot meet the teaching requirements of a main machine factory. Therefore, there is a need for a piston, an adjustable valve, a damper, and a method for controlling hydraulic oil of a damper, which solve the technical problems in the prior art to a certain extent.
Disclosure of Invention
The invention provides a piston, an adjustable valve, a shock absorber and a regulating and controlling method for hydraulic oil of the shock absorber, so as to solve the technical problem that a valve system structure in the prior art can only provide a restoring damping force but can not provide a compression damping force to a certain extent.
The application provides a piston, which comprises a piston main body, wherein one side of the piston main body is a circulation side, and the other side of the piston main body is a recovery side; a first boss is protruded at the central axis of the piston main body and at the circulating side, and a through shaft hole for a piston rod to pass through is formed along the central axis extension direction of the first boss; the piston main body is provided with a first through hole close to the central axis and a second through hole far away from the central axis along the radial direction, and the first through hole and the second through hole are respectively distributed at intervals in the circumferential direction;
a second boss is arranged at the position, corresponding to the second through hole, of the circulation side, and a second conduction groove communicated with the second through hole is formed in the second boss; a first conduction groove capable of being conducted with the first through hole is formed between the adjacent second bosses;
the edge of the second conducting groove is protruded with a convex edge, and a third conducting groove is formed in the convex edge.
The application also provides an adjustable valve comprising a compression side assembly, a recovery side assembly, a piston rod and the piston;
the piston rod passes through the through-hole of the piston;
the compression side component is sleeved on the piston rod positioned on the circulation side and is overlapped with the convex edge so as to cover the second conduction groove; the compression side assembly comprises a plurality of compression valve plates, and the compression valve plates are sequentially overlapped and arranged along a first direction;
the restoring side assembly is sleeved on the piston rod positioned on the restoring side.
In the above technical scheme, further, the compression valve plates are provided with 4, and the diameters of the 4 compression valve plates arranged along the first direction are sequentially increased.
In the above technical solution, further, the restoring side assembly includes a sleeve nut, an adjusting valve plate, a restoring valve plate, a sealing ring assembly, a restoring spring, and a lock nut;
the sleeve nut is sleeved on the piston rod positioned on the recovery side, and the lock nut is positioned at the end part of the piston rod positioned on the recovery side;
the adjusting valve plate, the restoring valve plate and the restoring spring are sequentially sleeved on the piston rod along the first direction, one end of the restoring spring is abutted to the restoring valve plate, and the other end of the restoring spring is abutted to the locking nut.
In the above technical solution, further, the number of the restoring valve plates is plural, and the plural restoring valve plates are arranged along the first direction.
In the above technical solution, further, the number of the restoring valve plates is 4;
at least 1 of the rest of the restoring valve plates except for the position close to the adjusting valve plate is a waist-shaped restoring valve plate.
In the above technical scheme, further, the circumferential edges of the adjusting valve plates are provided with adjusting grooves at intervals;
at least part of the regulating groove is communicated with the first conducting groove.
In the above solution, further, the recovery side assembly further includes a cover Kong Fapian, and the cover Kong Fapian is sleeved on the piston rod and located between the piston and the sleeve nut.
The application also provides a shock absorber comprising the piston or the adjustable valve.
The application also provides a regulating and controlling method for hydraulic oil of the shock absorber, which comprises the establishment of compression damping force and the establishment of restoration damping force;
the compression damping force is established such that the adjustable valve moves in a first direction relative to the shock absorber body during tire jounce; when the vehicle speed is low, hydraulic oil is led into the circulation side from the recovery side through the second through hole, the second through groove and the third through valve in sequence to generate a low-speed compression damping force; when the vehicle speed is high, the pressure oil sequentially passes through the second through hole and the second conduction groove and pushes the compression valve plate to be led into the circulation side from the recovery side so as to generate high-speed compression damping force;
the restoring damping force is established such that the adjustable valve moves in a direction opposite the first direction relative to the shock absorber body during a jump down of the tire; when the vehicle speed is low, the hydraulic oil sequentially passes through the first conducting groove, the first through hole and the regulating valve plate and is led into the restoring side from the circulating side so as to generate a low-speed restoring damping force; when the vehicle speed is medium speed, the hydraulic oil sequentially passes through the first conduction groove and the first through hole and pushes the restoring valve plate to be led into the restoring side from the circulating side so as to generate medium speed restoring damping force; when the vehicle speed is high, the hydraulic oil sequentially passes through the first conducting groove, the first through hole and pushes the restoring valve plate and the restoring spring to be led into the restoring side from the circulating side so as to generate high-speed restoring damping force.
Compared with the prior art, the beneficial effects of this application are:
the application provides a piston, which comprises a piston main body, wherein one side of the piston main body is a circulation side, and the other side of the piston main body is a recovery side; a first boss is protruded at the central axis of the piston main body and at the circulating side, and a through shaft hole for a piston rod to pass through is formed along the central axis extension direction of the first boss; the piston main body is provided with a first through hole close to the central axis and a second through hole far away from the central axis along the radial direction, and the first through hole and the second through hole are respectively distributed at intervals in the circumferential direction;
a second boss is arranged at the position, corresponding to the second through hole, of the circulation side, and a second conduction groove communicated with the second through hole is formed in the second boss; a first conduction groove capable of being conducted with the first through hole is formed between the adjacent second bosses;
the edge of the second conducting groove is protruded with a convex edge, and a third conducting groove is formed in the convex edge.
In summary, the piston is applied to a shock absorber that can provide both a restoring damping force and a compression damping force.
The application also provides an adjustable valve comprising a compression side assembly, a recovery side assembly, a piston rod and the piston; the piston rod passes through the through-hole;
the compression side component is sleeved on the piston rod positioned on the circulation side and is overlapped with the convex edge so as to cover the second conduction groove; the compression side assembly comprises a plurality of compression valve plates, and the compression valve plates are sequentially overlapped and arranged along a first direction; the restoring side assembly is sleeved on the piston rod positioned on the restoring side.
In summary, the adjustable valve can provide both a restoring damping force and a compression damping force on the restoring side. And through the mutual ingenious combination of piston, compression valve block and restoring valve block for adjustable valve can provide higher compression damping force and restoring damping force's adjustment scope, and then reaches the demand that satisfies the customer.
In this embodiment a shock absorber is provided comprising a piston as described above or an adjustable valve as described above. Thus having all the advantages of the piston or the adjustable valve described above, not described here too much.
The application also provides a regulating and controlling method for hydraulic oil of the shock absorber, which comprises the establishment of compression damping force and the establishment of restoration damping force;
the compression damping force is established such that the adjustable valve moves in a first direction relative to the shock absorber body during tire jounce; when the vehicle speed is low, hydraulic oil is led into the circulation side from the recovery side through the second through hole, the second through groove and the third through valve in sequence to generate a low-speed compression damping force; when the vehicle speed is high, the pressure oil sequentially passes through the second through hole and the second conduction groove and pushes the compression valve plate to be led into the circulation side from the recovery side so as to generate high-speed compression damping force;
the restoring damping force is established such that the adjustable valve moves in a direction opposite the first direction relative to the shock absorber body during a jump down of the tire; when the vehicle speed is low, the hydraulic oil sequentially passes through the first conducting groove, the first through hole and the regulating valve plate and is led into the restoring side from the circulating side so as to generate a low-speed restoring damping force; when the vehicle speed is medium speed, the hydraulic oil sequentially passes through the first conduction groove and the first through hole and pushes the restoring valve plate to be led into the restoring side from the circulating side so as to generate medium speed restoring damping force; when the vehicle speed is high, the hydraulic oil sequentially passes through the first conducting groove, the first through hole and pushes the restoring valve plate and the restoring spring to be led into the restoring side from the circulating side so as to generate high-speed restoring damping force.
In summary, the adjustable valve can provide both a restoring damping force and a compression damping force on the restoring side. And through the mutual ingenious combination of piston, compression valve block and restoring valve block for adjustable valve can provide higher compression damping force and restoring damping force's adjustment scope, and then reaches the demand that satisfies the customer.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a piston according to a first embodiment of the present disclosure at a first view angle;
FIG. 2 is a schematic view of a piston according to a first embodiment of the present disclosure in a second view;
fig. 3 is a schematic structural diagram of a regulating valve provided in a second embodiment of the present application at a first view angle;
fig. 4 is an enlarged view at a in fig. 3;
fig. 5 is a schematic structural diagram of a regulating valve provided in a second embodiment of the present application at a second view angle;
FIG. 6 is an exploded view of a regulator valve according to a second embodiment of the present disclosure;
FIG. 7 is a cross-sectional view of a regulator valve provided in accordance with a second embodiment of the present application;
fig. 8 is a schematic structural diagram of an adjusting valve plate in an adjusting valve according to a second embodiment of the present disclosure.
Reference numerals:
1-a piston body; 2-a first boss; 3-passing through the shaft hole; 4-a first through hole; 5-a second through hole; 6-a second boss; 7-a first conduction groove; 8-a second conduction groove; 9-convex edges; 10-a third conduction groove; 11-a compression side assembly; 12-a reconstitution side assembly; 13-a piston rod; 14-a first compression valve plate; 15-a first direction; 16-sleeve nut; 17-adjusting the valve plate; 18-a first recovery valve plate; 19-O-shaped ring; 20-restoring springs; 21-a lock nut; 22-a second recovery valve plate; 23-a third recovery valve plate; 24-fourth restoring valve plate; 25-adjusting grooves; 26-cover Kong Fapian; 27-a second compression valve plate; 28-a third compression valve plate; 29-fourth compression valve plate; 30-O-ring gasket.
Detailed Description
The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown.
The components of the embodiments of the present application, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application.
All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
Example 1
As shown in connection with fig. 1 and 2, in this embodiment a piston is provided, which comprises a piston body 1, one side of the piston body 1 being the flow-through side and the other side being the recovery side.
Specifically, a first boss 2 protrudes from the central axis of the piston main body 1 at the flow side, the first boss 2 is preferably in a shape of a truncated cone, and a through shaft hole 3 for a piston rod 13 to pass through is formed along the extending direction of the central axis of the first boss 2; the piston main body 1 is provided with a first through hole 4 close to the central axis and a second through hole 5 far away from the central axis along the radial direction, and the first through hole 4 and the second through hole 5 are respectively distributed at intervals in the circumferential direction; further, both the first through hole 4 and the second through hole 5 can be communicated from the circulation side to the recovery side of the piston main body 1; further, the first through holes 4 are cylindrical holes, the number of the first through holes 4 is 8, the second through holes 5 are fan-shaped through holes with cross sections, and the number of the second through holes 5 is 4.
Specifically, a second boss 6 is provided at the position corresponding to the second through hole 5 on the flow side, and a second conduction groove 8 communicating with the second through hole 5 is provided on the second boss 6; preferably, the cross section of the second boss 6 is a sector; a first conduction groove 7 capable of conducting with the first through hole 4 is formed between the adjacent second bosses 6.
Specifically, the edge of the second conducting groove 8 is protruded with a convex edge 9, and a third conducting groove 10 is formed on one side, far away from the central axis, of the convex edge 9.
Further, the total height of the second boss 6 and the flange 9 in the direction of the central axis is equal to the height of the first boss 2 in the direction of the central axis.
In actual use, the piston may be applied to an adjustable valve in a shock absorber.
In particular, the adjustable valve moves in a vertically downward direction relative to the damper body (which is prior art and understood by those skilled in the art) as the tire is being jounced; when the vehicle speed is low, hydraulic oil is introduced from the recovery side to the circulation side through the second through hole 5, the second through hole 8, and the third through hole 10 in this order to generate a low-speed compression damping force; when the vehicle speed is high, the pressurized oil sequentially passes through the second through hole 5 and the second through groove 8 and pushes the compression valve plate (the compression valve plate is one of the adjustable valve structures, which is the prior art, and a person skilled in the art can understand that the pressurized oil is led into the flow side from the restoring side to generate a high-speed compression damping force);
more specifically, the adjustable valve moves in a direction upward from vertical relative to the damper body as the tire is in the process of jumping down; when the vehicle speed is low, the hydraulic oil is led into the restoring side from the circulating side through the first conducting groove 7, the first through hole 4 and the regulating valve plate 17 in sequence to generate a low-speed restoring damping force; when the vehicle speed is a medium speed, the hydraulic oil sequentially passes through the first conduction groove 7 and the first through hole 4 and pushes the restoring valve plate (the restoring valve plate is in the prior art, and a person skilled in the art can understand that the restoring valve plate is in the prior art), and is led into the restoring side from the flow side to generate a medium speed restoring damping force; when the vehicle speed is high, the hydraulic oil sequentially passes through the first conduction groove 7 and the first through hole 4 and pushes the return valve plate and the return spring 20 (the return spring 20 is a conventional art, and it should be understood by those skilled in the art) to be introduced from the flow side to the return side to generate a high-speed return damping force.
In summary, the piston is applied to the shock absorber, and can provide both a restoring damping force and a compression damping force.
Example two
In this embodiment, as shown in connection with fig. 3-8, an adjustable valve is provided comprising a compression side assembly 11, a recovery side assembly 12, a piston rod 13 and a piston as set forth in embodiment one.
Specifically, the piston rod 13 passes through the through-hole 3; the compression side component 11 is sleeved on the piston rod 13 positioned on the circulation side, and the compression side component 11 is overlapped with the convex edge 9 and the first boss 2 so as to cover the second conduction groove 8; the compression side assembly 11 comprises a plurality of compression valve plates, wherein the plurality of compression valve plates are respectively a first compression valve plate 14, a second compression valve plate 27, a third compression valve plate 28 and a fourth compression valve plate 29, and the first compression valve plate 14, the second compression valve plate 27, the third compression valve plate 28 and the fourth compression valve plate 29 are sequentially overlapped and arranged along a first direction 15 (the first direction 15 is a vertical downward direction);
further, the diameters of the first compression valve plate 14, the second compression valve plate 27, the third compression valve plate 28 and the fourth compression valve plate 29 are sequentially increased, so that the first compression valve plate 14, the second compression valve plate 27, the third compression valve plate 28 and the fourth compression valve plate 29 form a tower-like structure.
Specifically, the restoring side assembly 12 is sleeved on the piston rod 13 located on the restoring side. More specifically, the restoring side assembly 12 includes a sleeve nut 16, an adjusting valve plate 17, a restoring valve plate, a seal ring assembly, a restoring spring 20, and a lock nut 21; the sleeve nut 16 is sleeved on the piston rod 13 positioned on the recovery side, and the lock nut 21 is positioned at the end part of the piston rod 13 positioned on the recovery side; the adjusting valve plate 17, the restoring valve plate and the restoring spring 20 are sequentially sleeved on the piston rod 13 along the vertical downward direction, one end of the restoring spring 20 is abutted against the restoring valve plate, and the other end is abutted against the locking nut 21.
Further, the sleeve nut 16 can improve the coaxiality dimension between the sleeve nut 16 and the piston rod 13. Meanwhile, the sleeve nut 16 is matched with the lock nut 21, the double-nut structure improves the self-locking performance, and a better anti-loosening effect is achieved.
More specifically, the number of the restoring valve plates is 4, and the 4 restoring valve plates are respectively a first restoring valve plate 18, a second restoring valve plate 22, a third restoring valve plate 23 and a fourth restoring valve plate 24; and the first restoring valve plate 18, the second restoring valve plate 22, the third restoring valve plate 23 and the fourth restoring valve plate 24 are sequentially arranged along the vertical downward direction.
Further, the second restoring valve plate 22 is a kidney-shaped restoring valve plate.
More specifically, the circumferential edges of the regulating valve plate 17 are provided with regulating grooves 25 at intervals; and at least part of the regulating groove 25 is in communication with the first communicating groove 7.
In this embodiment, the reconstitution side assembly 12 further includes a cap Kong Fapian, the cap Kong Fapian being disposed over the piston rod 13 and between the piston and the sleeve nut 16.
In this embodiment, the restoring side assembly 12 further includes an O-ring 19 sleeved on the sleeve nut 16 and an O-ring washer 30, the O-ring washer 30 is connected to the fourth restoring valve plate 24, and one end of the restoring spring 20 is finally abutted against the O-ring washer 30 and the other end is abutted against the lock nut 21.
Wherein, the sealing performance of the restoring side is improved by the O-shaped ring 19, and the consistency of the product performance can be better ensured.
During actual use, the adjustable valve may be used in a shock absorber.
In particular, the adjustable valve moves in a vertically downward direction relative to the damper body (which is prior art and understood by those skilled in the art) as the tire is being jounced; when the vehicle speed is low, hydraulic oil is led into the circulation side from the recovery side to the circulation side through the second through hole 5, the second through groove 8 and the third through groove 10 in sequence to generate a low-speed compression damping force, and in the process, the low-speed compression damping force can be adjusted by adjusting the size of the third through groove 10; when the vehicle speed is high, the pressurized oil sequentially passes through the second through hole 5 and the second through hole 8 and sequentially pushes the fourth compression valve plate 29, the third compression valve plate 28, the second compression valve plate 27 and the first compression valve plate 14, and is introduced from the recovery side to the circulation side to generate a high-speed compression damping force; in the process, the high-speed damping force can be adjusted by adjusting the rigidity of the compression valve plate.
Notably, are: because the diameters of the first compression valve plate 14, the second compression valve plate 27, the third compression valve plate 28 and the fourth compression valve plate 29 are sequentially increased, the first compression valve plate 14, the second compression valve plate 27, the third compression valve plate 28 and the fourth compression valve plate 29 finally form a tower-like structure, so that the high-speed compression damping force is built to be more flexible.
More specifically, the adjustable valve moves in a direction upward from vertical relative to the damper body as the tire is in the process of jumping down; when the vehicle speed is low, the hydraulic oil is led into the restoring side from the circulating side through the first conducting groove 7, the first through hole 4 and the adjusting groove 25 on the adjusting valve plate 17 in sequence to generate a low-speed restoring damping force, and the magnitude of the low-speed damping force can be adjusted by adjusting the magnitude of the adjusting groove 25 on the adjusting valve plate 17; when the vehicle speed is a medium speed, the hydraulic oil sequentially passes through the first conduction groove 7 and the first through hole 4 and sequentially pushes the first recovery valve plate 18, the second recovery valve plate 22 (kidney-shaped recovery valve plate), the third recovery valve plate 23 and the fourth recovery valve plate 24 to be led into the recovery side from the circulation side, and in the process, the hydraulic oil causes the compression valve plate to be deformed, so that a medium speed damping force is established; the thickness of the waist-shaped restoring valve plates can adjust the middle-speed damping force by adjusting the number of the restoring valve plates; when the vehicle speed is high, the hydraulic oil sequentially passes through the first conduction groove 7 and the first through hole 4 and sequentially pushes the first restoring valve plate 18, the second restoring valve plate 22, the third restoring valve plate 23, the fourth restoring valve plate 24 and the restoring spring 20, and is led into the restoring side from the circulation side to generate a high-speed restoring damping force, in other words, the restoring valve plate deformation at high speed has reached a limit, the impact force of the hydraulic oil pushes the restoring spring 20 to generate a high-speed restoring damping force, and in the process, the restoring high-speed damping force is adjusted by adjusting the rigidity and the load of the restoring spring 20.
Notably, are: because the second restoring valve plate 22 is a kidney-shaped restoring valve plate, when the hydraulic oil passes through the first conducting groove 7 and the first through hole 4 and pushes the first restoring valve plate 18, the second restoring valve plate 22, the third restoring valve plate 23 and the fourth restoring valve plate 24 in sequence, the first restoring valve plate 18 is under the action of the second restoring valve plate 22 (the second restoring valve plate 22 is a kidney-shaped restoring valve plate, and the first restoring valve plate 18 is an annular plate), and under the impact of the hydraulic oil, the annular plate can undergo micro deformation relative to the kidney-shaped restoring valve plate, so that the hydraulic oil can more smoothly pass through the first restoring valve plate 18, the second restoring valve plate 22, the third restoring valve plate 23 and the fourth restoring valve plate 24 in sequence.
In summary, the adjustable valve is applied to a shock absorber, and can provide both a restoring damping force and a compression damping force. And through the mutual ingenious combination of piston, compression valve block and restoring valve block for adjustable valve can provide higher compression damping force and restoring damping force's adjustment scope, and then reaches the demand that satisfies the customer.
Example III
In this embodiment a shock absorber is provided comprising a piston as described above or an adjustable valve as described above. Thus having all the advantages of the piston or the adjustable valve described above, not described here too much.
Example IV
In this embodiment, a method for controlling hydraulic oil for a shock absorber is provided, which specifically includes the establishment of a compression damping force and the establishment of a rebound damping force;
specifically, the compression damping force is established such that the adjustable valve moves in a first direction relative to the shock absorber body during tire jounce; when the vehicle speed is low, hydraulic oil is led into the circulation side from the recovery side through the second through hole, the second through groove and the third through groove in sequence to generate a low-speed compression damping force; when the vehicle speed is high, the pressure oil sequentially passes through the second through hole and the second conduction groove and pushes the compression valve plate to be led into the circulation side from the recovery side so as to generate high-speed compression damping force;
more specifically, the restoring damping force is established such that the adjustable valve moves in a direction opposite to the first direction with respect to the shock absorber body when the tire is in the process of jumping down; when the vehicle speed is low, the hydraulic oil sequentially passes through the first conducting groove, the first through hole and the regulating valve plate and is led into the restoring side from the circulating side so as to generate a low-speed restoring damping force; when the vehicle speed is medium speed, the hydraulic oil sequentially passes through the first conduction groove and the first through hole and pushes the restoring valve plate to be led into the restoring side from the circulating side so as to generate medium speed restoring damping force; when the vehicle speed is high, the hydraulic oil sequentially passes through the first conducting groove, the first through hole and pushes the restoring valve plate and the restoring spring to be led into the restoring side from the circulating side so as to generate high-speed restoring damping force.
In summary, the application of the adjustable valve to a shock absorber can provide both a restoring damping force and a compression damping force. And through the mutual ingenious combination of piston, compression valve block and restoring valve block for adjustable valve can provide higher compression damping force and restoring damping force's adjustment scope, and then reaches the demand that satisfies the customer.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A piston comprising a piston body having one side being a flow-through side and the other side being a recovery side; a first boss is protruded at the central axis of the piston main body and at the circulating side, and a through shaft hole for a piston rod to pass through is formed along the central axis extension direction of the first boss; the piston is characterized in that a first through hole close to the central axis and a second through hole far away from the central axis are formed in the piston main body along the radial direction, and the first through hole and the second through hole are respectively distributed at intervals in the circumferential direction;
a second boss is arranged at the position, corresponding to the second through hole, of the circulation side, and a second conduction groove communicated with the second through hole is formed in the second boss; a first conduction groove capable of being conducted with the first through hole is formed between the adjacent second bosses;
the edge of the second conducting groove is protruded with a convex edge, and a third conducting groove is formed in the convex edge.
2. An adjustable valve comprising a compression side assembly, a rebound side assembly, a piston rod and the piston of claim 1;
the piston rod passes through the through-hole;
the compression side component is sleeved on the piston rod positioned on the circulation side and is overlapped with the convex edge so as to cover the second conduction groove; the compression side assembly comprises a plurality of compression valve plates, and the compression valve plates are sequentially overlapped and arranged along a first direction;
the restoring side assembly is sleeved on the piston rod positioned on the restoring side.
3. The adjustable valve according to claim 2, wherein 4 compression valve plates are provided, and diameters of the 4 compression valve plates arranged in the first direction sequentially increase.
4. The adjustable valve of claim 2, wherein the reset side assembly comprises a sleeve nut, an adjustment valve plate, a reset valve plate, a seal ring assembly, a reset spring, and a lock nut;
the sleeve nut is sleeved on the piston rod positioned on the recovery side, and the lock nut is positioned at the end part of the piston rod positioned on the recovery side;
the adjusting valve plate, the restoring valve plate and the restoring spring are sequentially sleeved on the piston rod along the first direction, one end of the restoring spring is abutted to the restoring valve plate, and the other end of the restoring spring is abutted to the locking nut.
5. The adjustable valve of claim 4, wherein the number of said regeneration valve plates is plural and a plurality of said regeneration valve plates are arranged in said first direction.
6. The adjustable valve of claim 5 wherein the number of said regeneration valve plates is 4;
at least 1 of the rest of the restoring valve plates except for the position close to the adjusting valve plate is a waist-shaped restoring valve plate.
7. The adjustable valve of claim 4 wherein the circumferential edges of the adjustment valve plate are spaced apart with adjustment slots;
at least part of the regulating groove is communicated with the first conducting groove.
8. The adjustable valve of claim 4, wherein the reset side assembly further comprises a cap Kong Fapian, the cap Kong Fapian being nested around the piston rod and located between the piston and the sleeve nut.
9. A shock absorber comprising a piston as claimed in claim 1 or an adjustable valve as claimed in any one of claims 2 to 8.
10. The method for regulating and controlling the hydraulic oil for the shock absorber is characterized by comprising the establishment of compression damping force and the establishment of restoring damping force;
the compression damping force is established such that the adjustable valve moves in a first direction relative to the shock absorber body during tire jounce; when the vehicle speed is low, hydraulic oil is led into the circulation side from the recovery side through the second through hole, the second through groove and the third through groove in sequence to generate a low-speed compression damping force; when the vehicle speed is high, the pressure oil sequentially passes through the second through hole and the second conduction groove and pushes the compression valve plate to be led into the circulation side from the recovery side so as to generate high-speed compression damping force;
the restoring damping force is established such that the adjustable valve moves in a direction opposite the first direction relative to the shock absorber body during a jump down of the tire; when the vehicle speed is low, the hydraulic oil sequentially passes through the first conducting groove, the first through hole and the regulating valve plate and is led into the restoring side from the circulating side so as to generate a low-speed restoring damping force; when the vehicle speed is medium speed, the hydraulic oil sequentially passes through the first conduction groove and the first through hole and pushes the restoring valve plate to be led into the restoring side from the circulating side so as to generate medium speed restoring damping force; when the vehicle speed is high, the hydraulic oil sequentially passes through the first conducting groove, the first through hole and pushes the restoring valve plate and the restoring spring to be led into the restoring side from the circulating side so as to generate high-speed restoring damping force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211588590.5A CN116006620A (en) | 2022-12-09 | 2022-12-09 | Piston, adjustable valve, shock absorber and control method for hydraulic oil of shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211588590.5A CN116006620A (en) | 2022-12-09 | 2022-12-09 | Piston, adjustable valve, shock absorber and control method for hydraulic oil of shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116006620A true CN116006620A (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211588590.5A Pending CN116006620A (en) | 2022-12-09 | 2022-12-09 | Piston, adjustable valve, shock absorber and control method for hydraulic oil of shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116006620A (en) |
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- 2022-12-09 CN CN202211588590.5A patent/CN116006620A/en active Pending
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