CN202132436U - Vibration damper piston assembly with adjustable damping force - Google Patents
Vibration damper piston assembly with adjustable damping force Download PDFInfo
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- CN202132436U CN202132436U CN201120207669U CN201120207669U CN202132436U CN 202132436 U CN202132436 U CN 202132436U CN 201120207669 U CN201120207669 U CN 201120207669U CN 201120207669 U CN201120207669 U CN 201120207669U CN 202132436 U CN202132436 U CN 202132436U
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Abstract
The utility model discloses a vibration damper piston assembly with adjustable damping force. The piston assembly comprises a piston valve assembly extending a working cylinder of a vibration damper, and a hollow piston rod, the upper end of the hollow piston rod is connected with an upper hoisting ring of the vibration damper, the lower end of the hollow piston rod is connected with the piston valve assembly, a radial hole which is communicated with a central hole of the hollow piston rod and runs through an upper cavity and a lower cavity of the working cylinder is arranged at the lower part of the hollow piston rod, a mobile valve rod is arranged in the central hole, and the upper hoisting ring is internally provided with a damping adjustment rotary valve for pushing the mobile valve rod to adjust an opening of the radial hole. According to the adopted technical scheme, the mobile valve rod is used as a control execution device, so that the realization is easier compared with the traditional mode by controlling a rotation angle of the piston rod, the damping is simply and conveniently adjusted, and the working is more reliable; and no complicated sensors or electronic elements are needed, the structure is simple, and the piston assembly is convenient to application and popularization in engineering.
Description
Technical field
The utility model belongs to technical field of hydraulic elements, and specifically, the utility model relates to a kind of adjustable damper piston assembly of damping force that is used for vehicle suspension system.
Background technique
Vibration damper is the critical component on the automobile, has high technology content, and its service behaviour quality is directly connected to riding comfort, operation stabilization and the Security of automobile.Common vibration damper is in vehicle traveling process, and damping can't be regulated with the operating conditions of automobile and the variation of excitation, and therefore, the further raising of its damping property is restricted.For this reason; On the variable vibration damper of damping in some half advanced active automobile suspension systems; Adopted solenoid valve to come control flow rate; Its principle is to realize regulating automatically through the damping of restriction flow control to vibration damper, so that vehicle better, more adapts to the excitation on different road surfaces, improves travelling comfort, the handling and Security of vehicle.The control mode of rotating piston bar is adopted in the restriction flow control of the ride control shock absorber of existing technology mostly; Like publication number is that the Chinese patent of CN98100809.7 discloses a kind of airflow control; It is to be rotating power with the electromagnetic torque motor, directly drives the rotating piston bar and does to rotate in 90 ° of scopes.This control gear implements the comparison difficulty, and manufacturing cost and use cost is high, is difficult to large-scale promotion application in vibration damper, and this has restricted the further raising of car mass to a certain extent.
The model utility content
The utility model technical problem to be solved provides a kind ofly to be had damping and regulates easyly, and reliability is high, and manufacturing is easy, damper piston assembly easy to maintenance.
In order to solve the problems of the technologies described above; The technological scheme that the utility model adopted is: the damper piston assembly that a kind of damping force is adjustable; Comprise the piston valve assembly and the box type piston bar that stretch in the vibration damper clutch release slave cylinder; The upper end of said box type piston bar is connected with the upper rings of vibration damper, and the lower end is connected with said piston valve assembly, is provided with the radial hole that is communicated with vibration damper clutch release slave cylinder epicoele and cavity of resorption that connects with its center hole in the bottom of said box type piston bar; In said center hole, be provided with one and move valve rod, in said upper rings, be provided with and promote said mobile valve rod and regulate rotary valve with the damping of the opening of regulating said radial hole.
Said damping is regulated rotary valve and is acted on mutually with said mobile valve rod through a push rod that is located in the said center hole; The end that said damping adjusting rotary valve is connected with said push rod is the cam type structure; On the external peripheral surface of said damping adjusting rotary valve, evenly be provided with a plurality of gear fixed grooves, in this gear fixed groove, be provided with steel ball I.
The end near said radial hole of said mobile valve rod is a cone structure.
Between said push rod and mobile valve rod both ends of the surface, be the sphere contact.
Between said push rod and mobile valve rod both ends of the surface, be provided with a steel ball II.
Said damping is regulated between rotary valve and the said push rod and is contacted for putting a face.
Said push rod and mobile valve rod and said box type piston bar are one group of mating plate.
Said piston valve assembly is fixedly connected through hollow screw with said box type piston bar, and this hollow screw is coaxial with said box type piston bar.
Said damping is regulated rotary valve and is located in the valve opening of said upper rings, and damping is regulated rotary valve one end and stretched out outside the said valve opening, and is provided with the damping adjusting knob that is fixedly connected through attachment screw with damping adjusting rotary valve at this end.
The utility model adopts technique scheme, moves valve rod as the control actuating device, realizes more easily than traditional mode of pass through control piston bar steering angle, and it is easy to have a damping adjusting, and it is more reliable to work; Box type piston bar and mobile valve rod adopt mating plate, seals tightly, have guaranteed the accurate control of flow, have improved the degree of accuracy of resistance of shock absorber adjusting; Do not need complex sensing device or electronic component, simple in structure, there is not complicated electric controller, fringe cost is low, and reliable operation is convenient to practical applications and is promoted.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation that rotary valve is regulated in the damping of the utility model;
Fig. 3 is that A-A among Fig. 2 is to structural representation;
Mark among the above-mentioned figure is: 1, upper rings; 2, push rod; 3, box type piston bar; 4, steel ball II; 5, radial hole; 6, piston valve assembly; 7, vibration damper clutch release slave cylinder; 8, move valve rod; 9, damping adjusting knob; 10, rotary valve is regulated in damping; 11, gear fixed groove; 12, cam type structure.
Embodiment
Damper piston assembly as shown in Figure 1, that a kind of damping force of the utility model is adjustable is installed on the vibration damper, with the performance of the absorbing vibration damping of giving full play to vibration damper.This damper piston assembly comprises the piston valve assembly 6 and box type piston bar 3 that stretches in the vibration damper clutch release slave cylinder 7; The upper end of box type piston bar 3 is connected with the upper rings of vibration damper 1; The lower end is connected with piston valve assembly 6; Piston valve assembly 6 and box type piston bar 3 are fixedly connected through hollow screw, and this hollow screw is coaxial with box type piston bar 3.Be provided with the radial hole 5 that is communicated with vibration damper clutch release slave cylinder 7 epicoeles and cavity of resorption that connects with its center hole in the bottom of box type piston bar 3; In center hole, be provided with one and move valve rod 8; The end near radial hole 5 of moving valve rod 8 is a cone structure; In upper rings 1, be provided with and promote to move the damping adjusting rotary valve 10 of valve rod 8 with the opening of adjusting radial hole 5, damping is regulated rotary valve 10 and is acted on mutually with mobile valve rod 8 through a push rod 2 that is located in the center hole.Push rod 2 is one group of mating plate with mobile valve rod 8 with box type piston bar 3, seal tightly, has guaranteed the accurate control of flow, has improved the degree of accuracy of resistance of shock absorber adjusting.
On vibration damper upper rings 1, be provided with the valve opening that rotary valve 10 is regulated in damping is installed, damping is regulated rotary valve 10 1 ends and is stretched out outside the valve opening, and is provided with the damping adjusting knob 9 that is fixedly connected through attachment screw with damping adjusting rotary valve 10 at this end; Like Fig. 2, shown in Figure 3; Regulate the external peripheral surface of rotary valve 10 in damping and represent a regulation stall along evenly being provided with 11, one grooves of a plurality of gear fixed grooves on its circumferencial direction, the number of groove is set as required; In this gear fixed groove 11, be provided with steel ball I; And withstand through the pressure spring in the upper rings 1, the spring lower end is provided with screw, and screw is fixed in the screw hole on the upper rings 1.The end that rotary valve 10 is regulated in damping is cam type structure 12, and damping is regulated rotary valve 10 and is connected with push rod 2 at this end, and the upper end of push rod 2 is tapered, and regulating between rotary valve and the push rod 2 is a face contacts.
Be the sphere contact between the both ends of the surface of push rod 2 and mobile valve rod 8.As shown in Figure 1; Between push rod 2 and mobile valve rod 8, be provided with a steel ball II4, when vibration damper is worked, be the contact of some face between the end face of steel ball II4 and push rod 2, mobile valve rod 8; The effect of steel ball II4 is to make push rod 2 and mobile valve rod 8 in moving process, have good adaptive property; Make and move valve rod 8 and have well, make itself and piston valve assembly 6 no-floats, guarantee the accuracy of damping force adjusting disposition.In addition, also can one of them be made as sphere with push rod 2 and mobile valve rod 8 contacted both ends of the surface.
During the utility model work, drive damping through rotary damping adjusting knob 9 and regulate rotary valve 10 rotations, and then promote push rods 2 and move valve rod 8 in box type piston bar 3, to move axially by the cam type structure 12 of damping adjusting rotary valve 10 front ends; The cone structure that moves valve rod 8 lower ends cooperates with the radial hole 5 and the hollow screw of box type piston bar 3 lower ends, forms the passage of fluid, is communicated with the epicoele and the cavity of resorption of vibration damper clutch release slave cylinder 7; Through moving the opening of valve rod 8 control radial holes 5,, realize control to the through-current capacity of clutch release slave cylinder upper and lower cavity to regulate the size of the fluid flow between vibration damper clutch release slave cylinder 7 cavity of resorptions and the epicoele; And then reach the purpose of regulating resistance of shock absorber, regulate easy, reliable operation; And do not need complex sensing device or electronic component; Simple in structure, there is not complicated electric controller, fringe cost is low; Reliable operation is convenient to practical applications and is promoted.
Combine accompanying drawing that the utility model has been carried out exemplary description above; Obviously the concrete realization of the utility model does not receive the restriction of aforesaid way; As long as adopted the method design of the utility model and the improvement of the various unsubstantialities that technological scheme is carried out; Or the design of the utility model and technological scheme are directly applied to other occasion without improving, all within the protection domain of the utility model.
Claims (9)
1. damper piston assembly that damping force is adjustable; Comprise the piston valve assembly (6) and the box type piston bar (3) that stretch in the vibration damper clutch release slave cylinder (7); The upper end of said box type piston bar (3) is connected with the upper rings (1) of vibration damper; The lower end is connected with said piston valve assembly (6); It is characterized in that: be provided with the radial hole (5) that is communicated with vibration damper clutch release slave cylinder (7) epicoele and cavity of resorption that connects with its center hole in the bottom of said box type piston bar (3), in said center hole, be provided with one and move valve rod (8), in said upper rings (1), be provided with and promote the damping adjusting rotary valve (10) of said mobile valve rod (8) with the opening of regulating said radial hole (5).
2. the damper piston assembly that damping force according to claim 1 is adjustable; It is characterized in that: said damping is regulated rotary valve (10) and is acted on mutually with said mobile valve rod (8) through a push rod (2) that is located in the said center hole; The end that said damping adjusting rotary valve (10) is connected with said push rod (2) is cam type structure (12); On the external peripheral surface of said damping adjusting rotary valve (10), evenly be provided with a plurality of gear fixed grooves (11), in this gear fixed groove (11), be provided with steel ball I.
3. the damper piston assembly that damping force according to claim 2 is adjustable is characterized in that: the end near said radial hole (5) of said mobile valve rod (8) is a cone structure.
4. according to claim 2 or the adjustable damper piston assembly of 3 described damping forces, it is characterized in that: between said push rod (2) and mobile valve rod (8) both ends of the surface, be the sphere contact.
5. the damper piston assembly that damping force according to claim 4 is adjustable is characterized in that: between said push rod (2) and mobile valve rod (8) both ends of the surface, be provided with a steel ball II (4).
6. the damper piston assembly that damping force according to claim 5 is adjustable is characterized in that: said push rod (2) is regulated between the rotary valve (10) with said damping and is contacted for the some face.
7. the damper piston assembly that damping force according to claim 6 is adjustable is characterized in that: said push rod (2) and mobile valve rod (8) are one group of mating plate with said box type piston bar (3).
8. the damper piston assembly that damping force according to claim 7 is adjustable is characterized in that: said piston valve assembly (6) is fixedly connected through hollow screw with said box type piston bar (3), and this hollow screw is coaxial with said box type piston bar (3).
9. the damper piston assembly that damping force according to claim 8 is adjustable; It is characterized in that: said damping is regulated rotary valve (10) and is located in the valve opening of said upper rings (1); Damping is regulated rotary valve (10) one ends and is stretched out outside the said valve opening, and is provided with the damping adjusting knob (9) that is fixedly connected through attachment screw with damping adjusting rotary valve (10) at this end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120207669U CN202132436U (en) | 2011-06-20 | 2011-06-20 | Vibration damper piston assembly with adjustable damping force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120207669U CN202132436U (en) | 2011-06-20 | 2011-06-20 | Vibration damper piston assembly with adjustable damping force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202132436U true CN202132436U (en) | 2012-02-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120207669U Expired - Fee Related CN202132436U (en) | 2011-06-20 | 2011-06-20 | Vibration damper piston assembly with adjustable damping force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202132436U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148156A (en) * | 2013-03-15 | 2013-06-12 | 常州新瑞汽车配件制造有限公司 | Mechanical adjusting mechanism for damper |
| CN105156551A (en) * | 2015-07-21 | 2015-12-16 | 重庆川东减震制造有限公司 | Mechanism enabling recovery force of damper to be adjustable |
| CN109958733A (en) * | 2017-12-22 | 2019-07-02 | 株式会社万都 | A kind of the piston valve assembly and damper of variable damping force |
| CN111288108A (en) * | 2020-02-20 | 2020-06-16 | 唐山保靓汽车配件有限公司 | Damping adjustment device for shock absorber |
-
2011
- 2011-06-20 CN CN201120207669U patent/CN202132436U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148156A (en) * | 2013-03-15 | 2013-06-12 | 常州新瑞汽车配件制造有限公司 | Mechanical adjusting mechanism for damper |
| CN105156551A (en) * | 2015-07-21 | 2015-12-16 | 重庆川东减震制造有限公司 | Mechanism enabling recovery force of damper to be adjustable |
| CN109958733A (en) * | 2017-12-22 | 2019-07-02 | 株式会社万都 | A kind of the piston valve assembly and damper of variable damping force |
| CN111288108A (en) * | 2020-02-20 | 2020-06-16 | 唐山保靓汽车配件有限公司 | Damping adjustment device for shock absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20120620 |