CN101392810A - External adjustable damper valve of oil gas suspension - Google Patents
External adjustable damper valve of oil gas suspension Download PDFInfo
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- CN101392810A CN101392810A CNA2008102260652A CN200810226065A CN101392810A CN 101392810 A CN101392810 A CN 101392810A CN A2008102260652 A CNA2008102260652 A CN A2008102260652A CN 200810226065 A CN200810226065 A CN 200810226065A CN 101392810 A CN101392810 A CN 101392810A
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Abstract
The invention provides an external adjustable damping valve for an oil-gas suspension, which comprises an external adjustable damping valve body, wherein the valve body is provided with an energy accumulator interface and an oil-gas suspension cylinder interface; an end closure of the valve body is assembled with the external adjustable damping valve body through a fastening bolt; an upper hollow rod and a lower hollow rod are arranged in the valve body; a compression/rebound valve and a control valve with adjustable throttling area are arranged on the side wall of the upper hollow rod, and the compression/rebound valve is arranged on the periphery of the upper hollow rod; a valve plug of the control valve is arranged in the upper hollow rod; the upper end of the compression/rebound valve is provided with a first compression phase damping valve component; a rebound phase damping valve component is arranged between the compression/rebound valve and a spacing disc of the rebound valve; and two ends of the control valve are provided with a second compression phase damping valve component. The external adjustable damping valve has the advantages of good heat dissipation, small outer diameter of the control valve element, simple structure and high reliability.
Description
Technical field:
The present invention relates to the damping member of automobile suspension system, especially at the suspension system that the hydro pneumatic suspension vehicle is housed.The external adjustable damper valve of oil gas suspension that the present invention is designed, the damping force that it produces can be regulated according to pavement behavior.
Background technique:
Hydro-pneumatic spring is because its non-linear and cumulative property change rigidity is having good application prospects aspect special vehicle and the off-road vehicle.It transmits pressure with fluid, therefore, only need add suitable damping device on fluid path, and hydro-pneumatic spring can the double as damping member.Many hydro pneumatic suspensions do not design special damping member, be double as elastic element of hydro-pneumatic spring own and damping member, the damping of this hydro pneumatic suspension is mainly from two aspects, the one, when the wheel bob, fluid forms damping at oil pipe and tubing interface place during to-and-fro motion in hydro-pneumatic suspension system, the 2nd, the gas in the accumulator carries out the energy loss that heat exchange causes with the external world in expansion and compression process, and this part damping is also referred to as this structure damping of hydro-pneumatic spring.For most of vehicles, this part damping force is less relatively, is difficult to satisfy the requirement of the rapid attenuation vibration of vehicle, especially for the off-road vehicle that travels on the bad road surface of being everlasting, only utilizes this part damping force far can not satisfy the requirement of suspension system.Simultaneously, this part damping not only with the structure of hydro pneumatic suspension, arrange relevantly, also relevant with the working condition of hydro pneumatic suspension, external temperature etc., in design process, be difficult to this part damping is estimated.In order to improve the smoothness that the hydro pneumatic suspension vehicle is housed, just be necessary for it and design independently orifice valve.
At present, domestic hydro pneumatic suspension is used for off-road vehicle and load-carrying vehicle more, the road surface situation that it travels is complicated and changeable, if adopt the uncontrollable damping member of damping constant, be difficult in and all obtain run smoothness preferably on the different road surfaces, can influence the average overall travel speed of vehicle like this, and then increase cost of transportation.In addition, for present hydro pneumatic suspension, also exist such problem, because the oil cylinder piston area of hydro pneumatic suspension is bigger, therefore, fluid flow by orifice valve can be very big, when orifice valve is built-in, will run into heat dissipation problem when on bad road, travelling, the too high meeting of oil liquid temperature causes viscosity to reduce, and can have influence on the performance of gas in the accumulator, thereby have influence on the external characteristics of hydro pneumatic suspension.
No. 98111480.6 patent of invention that China announces have been announced a kind of automobile-used hydro-pneumatic spring vibration damper for the first time in advance, and this invention has increased adjustable restrictive valve and accumulator from oleo-pneumatic shock absorber, has formed the hydro-pneumatic spring vibration damper.The vibration damper with oil-gas spring that this invention is announced in advance, when the frequency of excitation during less than 6～7Hz, the proportion of utilization solenoid valve carries out vibration damping as damping member, when the frequency of excitation is higher than 7Hz, utilizes accumulator to carry out vibration damping as damping member.Yet, because this patent of invention is from air oil shock absorber, there is such problem, it must be provided with special elastic element, if with itself as elastic element, that part of active force that then former cause elastic element bears is all born by vibration damper with oil-gas spring, this will certainly increase the pressure of system, and the piston area of vibration damper with oil-gas spring is by the damper piston area decision of its repacking, can be smaller, this can make that the pressure of vibration damper with oil-gas spring is very high, and is very high to the seal request of system, not only increase the cost of system, also reduced the reliability of system.Simultaneously, its more consideration is an effectiveness in vibration suppression of improving vibration damper by the repacking to vibration damper, and the structure to its orifice valve is not elaborated.
Summary of the invention:
The external adjustable damper valve of oil gas suspension that the object of the invention provides at the problems referred to above just with variable damping force characteristic, this external adjustable damper valve of oil gas suspension comprises: a) external adjustable damper valve valve body, valve body are provided with accumulator interface and hydro pneumatic suspension cylinder interface; B) valve body end cap is by clamping bolt and the assembling of external adjustable damper valve valve body; C) go up hollow stem for one, hollow stem is provided with the liquid opening that radially penetrates on this, and two positioning steps in outer wall upper edge axial distribution; The top is provided with the through hole that passes for adjustable lever, and bottom interior wall is provided with the internal thread of control valves spool lower end axially locating; D) following hollow stem, its upper half part outer wall is provided with the outside thread of control valves spool axially locating, and lower half portion outer wall is provided with the outside thread that matches with the rebound valve locking nut, and the bottom is provided with the liquid communication port; E) control valve, this control valve are provided with compression phase liquid chunnel that penetrates vertically and the liquid opening that radially penetrates; And be respectively equipped with annular chamber that is communicated with the liquid opening and the annular chamber that is communicated with liquid chunnel, its upper axial end is by positioning step on the last hollow stem and the constraint of last positioning block; F) control valve spool, this control valve spool is a hollow structure, can in last hollow stem, rotate, it drives by apply external force on adjustable lever, friction when being provided with lining at the two ends of control valve spool and reducing to rotate, this control valve spool outer wall diverse location is provided with liquid opening that radially penetrates and the liquid that radially penetrates stream crack; G) compression/rebound valve, this compression/rebound valve is the periphery that constitutes and be fixed on vertically hollow stem like this, compression/rebound valve is along with its axis being the liquid chunnel that is provided with compression phase that penetrates of the conical surface at center and the liquid chunnel of upholding phase place, and this compression/rebound valve is provided with the middle pressure receiving cavity chamber of phase place and is provided with compression phase intermediate pressure reception chamber in the outlet of compression phase fluid passage around the outlet of upholding the phase place fluid passage; H) first compression phase damping valve component, this component limitations ground are filled the fluid of being permitted first chamber and are flowed into second chamber through compression phase liquid chunnel, compression phase intermediate pressure reception chamber, so that produce a higher damping force herein; I) uphold phase place orifice valve assembly, this component limitations ground fills the fluid of being permitted second chamber and receives chamber and flow into first chamber by extension phase place liquid chunnel, extension phase place intermediate pressure, so that produce a higher damping force herein.J) second compression phase damping valve component (4,5a) with (6,5c), fill to this component limitations the liquid opening (perhaps liquid stream crack) on hollow stem liquid communication port, the control valve spool under the fluid process of being permitted first chamber, go up liquid opening, annular chamber, compression phase liquid chunnel, inflow second chamber on the hollow stem, so that produce relatively low damping force herein.K) holddown spring of upholding phase place, an end of this holddown spring is pressed in rebound valve position-arresting disk surface, and the other end is retrained by locking nut, can regulate the maximum of rebound valve by adjusting lock nut's position and open the valve height and open valve speed; L) half-duplex channel of one second compression phase, under big damping state, the outer wall of control valve spool aligns with liquid opening on the last hollow stem, and this passage ends; Under middle damping state, this passage by the liquid communication port of following hollow stem lower end, go up the boring part of hollow stem and following hollow stem, the liquid stream crack on the control valve spool, last liquid opening, annular chamber, control valve liquid chunnel, second compression phase damping valve component (4 on the hollow stem, 5a), form C
3By the liquid communication port of following hollow stem lower end, go up the boring part of hollow stem and following hollow stem, the liquid stream crack on the control valve spool, last liquid opening, annular chamber, control valve liquid chunnel, second compression phase damping valve component (6 on the hollow stem, 5c), form C
2Under little damping state, this passage is by the liquid communication port of descending the hollow stem lower end, the boring part that goes up hollow stem and following hollow stem, the liquid opening on the control valve spool, liquid opening, annular chamber, control valve liquid chunnel, second compression phase damping valve component (4 of last hollow stem, 5a), form C
3By the liquid communication port of following hollow stem lower end, go up the boring part of hollow stem and following hollow stem, the liquid stream crack on the control valve spool, last liquid opening, annular chamber, control valve liquid chunnel, second compression phase damping valve component (6 on the hollow stem, 5c), form C
2By the liquid communication port of following hollow stem lower end, go up the boring part of hollow stem and following hollow stem, on the control valve spool the liquid opening, go up liquid opening, annular chamber, control valve liquid opening on the hollow stem, formation C
1M) half-duplex channel of a compression phase, this passage receives chamber, the formation of first compression phase damping valve component by compression phase liquid chunnel, compression phase intermediate pressure; N) half-duplex channel of upholding phase place, this passage receives chamber, upholds the formation of phase place orifice valve assembly by the liquid chunnel that passes compression phase, extension phase place intermediate pressure.
Beneficial effect
Because it is external that the present invention takes, so good heat dissipation, and the external diameter of its control valve element is less, simple in structure, the reliability height.In addition, this external adjustable damper valve of oil gas suspension can be implemented in a feature locations compression phase and be in big damping state, compression phase is in middle damping state during a feature locations, and compression phase is in little damping state during the another one feature locations, and can be implemented in the conversion between each state.
Description of drawings
Fig. 1 is an axial section of the present invention;
Fig. 2 is the scheme of installation of external adjustable damper valve of oil gas suspension 22;
Fig. 3 is the top view of external adjustable damper valve valve body 2 shown in Figure 1;
Fig. 4 be control valve 5 shown in Figure 1 vertically partly cut open figure;
Fig. 5 is the plan view of compression/rebound valve 8 shown in Figure 1;
Fig. 6 a be compression/rebound valve 8 shown in Figure 1 along A-A to sectional view;
Fig. 6 b be compression/rebound valve 8 shown in Figure 1 along B-B to sectional view;
Fig. 7 is that described external adjustable damper valve of oil gas suspension is in the liquid chunnel schematic representation when compressing little damping position;
Fig. 8 is the liquid chunnel schematic representation of described external adjustable damper valve of oil gas suspension when being in damping state in the compression;
Fig. 9 is the liquid chunnel figure of described external adjustable damper valve of oil gas suspension when being in the big damping state of compression;
Figure 10 is that described external adjustable damper valve of oil gas suspension is in the liquid chunnel figure when upholding damping state;
Figure 11 a be described control valve element when turning to big damping state along S
2-S
2Sectional drawing;
Figure 11 b be during described control valve element turns to during damping state along S
2-S
2Sectional drawing;
Figure 11 c be described control valve element when turning to little damping state along S
2-S
2Sectional drawing;
Figure 12 a be described control valve element when turning to big damping state along S
1-S
1Sectional drawing;
Figure 12 b be during described control valve element turns to during damping state along S
1-S
1Sectional drawing;
Figure 12 c be described control valve element when turning to little damping state along S
1-S
1Sectional drawing.
Among the figure: 1-external orifice valve valve body, 1a-accumulator interface, 1b-hydro pneumatic suspension cylinder interface, 2-upward hollow stem, 2a-liquid opening, 2b-liquid opening, 2c-liquid stream crack, 2d-liquid opening, 2e-liquid stream crack, 3-upward positioning blocks, 4-throttle valve plate, 5-control valve, 5a-auxiliary body, 5b-liquid chunnel, 5c-auxiliary body, 5d-liquid opening, 5e-annular chamber, 5f-annular chamber, 6-throttle valve plate, 7-throttle valve plate, 8-compression/rebound valve, 8a-extension phase place liquid chunnel, 8b-extension phase place seat, 8c-compression phase liquid chunnel, 8d-compression phase seat, 9-throttle valve plate, 10-position-arresting disk, 11-holddown spring, 12-locking nut, 13-following hollow stem, 13a-liquid communication port, 14-clamping bolt, 15-valve body end cap, 16-control valve spool, 16a-liquid opening, 16b-liquid opening, 16c-liquid stream crack, 16d-liquid opening, 16e-liquid stream crack, 17-adjustable lever, 18a-seal ring, 18b-seal ring, 18c-seal ring, 18d-seal ring, 19a-lining, 19b-lining, 20a-adjustment pad, 20b-adjustment pad, 20c-adjustment pad, 20d-adjustment pad, 21-accumulator, 22-external adjustable damper valve of oil gas suspension, 23-hydro pneumatic suspension cylinder, R-the-chamber, S-second chamber, C
1-the second compression phase half-duplex channel, C
2-the second compression phase half-duplex channel, C
3-the second compression phase half-duplex channel, D-compression phase half-duplex channel, E-extension phase place half-duplex channel.
Describe the present invention below in conjunction with accompanying drawing:
As shown in Figure 1, described external adjustable damper valve of oil gas suspension 22 comprises a control valve 5 and a compression/rebound valve 8, control valve 5 and compression/rebound valve 8 are fixed on the outer circumferential face of hollow stem 2 vertically, wherein the upper end of control valve 5 is spacing by positioning step on the last hollow stem 2 and last positioning block 3, the annular chamber 5e of control valve 5 aligns with liquid opening 2a on the last hollow stem 2, and annular chamber 5f aligns with liquid opening 2b, 2c on the last hollow stem 2; The upper end of control valve 5 lower ends and compression/rebound valve 8 is constrained each other, and the lower end of compression/rebound valve 8 retrains by locking nut 12, and locking nut 12 is fixed on down on the hollow stem 13 by internal thread vertically; All above-mentioned elements are installed in the internal cavities that external adjustable damper valve valve body 1 and valve body end cap 15 formed, external adjustable damper valve valve body 1 assembles by clamping bolt 14 with valve body end cap 15, and the inner space that control valve 5 and compression/rebound valve 8 are formed external adjustable damper valve valve body 1 and valve body end cap 15 is divided into the first chamber R and the second chamber S that includes fluid.
External adjustable damper valve of oil gas suspension 22 is between accumulator 21 and the hydro pneumatic suspension cylinder 23, and it is connected with accumulator 21 by accumulator interface 1a, and 1b is connected with hydro pneumatic suspension cylinder 23 by hydro pneumatic suspension cylinder interface, forms the confining liquid circulation flow path of hydro-pneumatic suspension system.
Fig. 4 comprises the auxiliary body 5a of two second compression phases, and 5c and six along the circumferential direction evenly distribute, the liquid chunnel 5b of axial penetration.Wherein auxiliary body 5a, 5c is a parallel form, is separately positioned on the top and bottom of control valve 5, so that form second compression phase damping valve component with throttle valve plate; This control valve also comprises two annular cavity 5e, 5f and 2 liquid opening 5d that radially become 180 °, and wherein, annular chamber 5f communicates with liquid chunnel 5b, and annular chamber 5e communicates with liquid opening 5d.
In addition, the upper surface of control valve 5 is installed one group of compression phase damping throttle valve plate 4, and this throttle valve plate and auxiliary body 5a form second compression phase damping valve component (4 near contacting, 5a), so that restrictively fill the flow of liquid mistake of being permitted among the compression phase liquid chunnel 5b.The lower surface of control valve 5 is installed one group of compression phase damping throttle valve plate 6, and this throttle valve plate and auxiliary body 5c be near contacting, form second compression phase damping valve component (6,5c) so that restrictively fill flow of liquid mistake among the compression phase liquid chunnel 5b perhaps.By rational design throttle valve plate 4 and 6, can obtain different control valve damping characteristics.
Shown in Fig. 5, Fig. 6 a, Fig. 6 b, described compression/rebound valve 8 comprises: the extension phase place liquid chunnel 8a that the conical surface that 8 edges are the center with the valve axis penetrates, its cross section is circular, evenly distributes on circumference, so that make fluid flow into the second chamber S from the first chamber R; And 8 equally distributed pressure channel 8c of the conical surface that the edge is the center with the valve axis, its cross section is circular, evenly distributes on circumference, so that make fluid flow into the first chamber R from the second chamber S.8 extension phase place liquid chunnels and 8 compression phase liquid chunnels are crisscross arranged on compression/rebound valve 8, and the liquid chunnel of adjacent compression phase is 22.5 ° with extending the phase place liquid chunnel along circumferential angle.In addition, the upper surface tool of compression/rebound valve 8 receives chamber with the compression phase seat 8d that stretches out from it to form the intermediate pressure that communicates with compression phase liquid chunnel 8c.In contrast, the following table mask of compression/rebound valve 8 receives chamber with the extension phase place seat 8b that stretches out from it to form the intermediate pressure that communicates with compression phase liquid chunnel 8a.In addition, the upper surface of compression/rebound valve 8 is installed a compression phase damping throttle valve plate 7, and this throttle valve plate and compression phase seat 8d form first compression phase damping valve component (7 near contacting, 8d), so that restrictively fill the flow of liquid mistake of being permitted among the compression phase liquid chunnel 8c.The lower surface of compression/rebound valve 8 is installed one and is upheld phase place damping throttle valve plate 9, this throttle valve plate with uphold phase place seat 8b near contacting, formation extension phase place orifice valve assembly (9,8b), so that restrictively fill the flow of liquid mistake of being permitted to uphold among the phase place liquid chunnel 8a.
External adjustable damper valve of oil gas suspension shown in Figure 1, be provided with uphold phase place orifice valve assembly (9, position-arresting disk 10 8b), it utilizes locking nut 12 to position, and by holddown spring 11, controls the cracking pressure and the maximum of rebound valve and opens the valve height.
External adjustable damper valve of oil gas suspension shown in Figure 1 also is provided with adjusts pad 20a, 20b, 20c, 20d, in order to limit described first, second compression phase and to uphold phase place orifice valve assembly, so that the degree of crook of first, second above-mentioned compression phase and extension phase place orifice valve assembly is less than or equal to its predetermined degree of crook.
External adjustable damper valve of oil gas suspension shown in Figure 1 also is provided with seal ring 18a, 18b, 18c, 18d, in order to guarantee the sealing of described external adjustable damper valve of oil gas suspension.
A columniform control valve spool 16 inserts the inside of passing hollow stem 2 along axis rotationally, this control valve spool 16 is provided with three groups of liquid opening 16a at the axial diverse location of outer surface, 16b, 16d, every group comprises and is positioned at two through holes that are mutually 180 ° on the same cross section, simultaneously, with the same cross section of liquid opening 16b on also be provided with two liquid stream crack 16c that are mutually 180 °, with the same cross section of liquid opening 16d on also be provided with two liquid stream crack 16e that are mutually 180 °, adjacent liquid opening and liquid stream crack angle along the circumferential direction are 60 °, be provided with lining 19a at the two ends of control valve spool 16,19b, frictional force when rotating in order to reduce control valve spool 16, the upper end of control valve spool 16 positions by the step of last hollow stem 2 inside, and the lower end positions by following hollow stem 13.Vertically diverse location is provided with three groups of liquid opening 2a, 2b, 2c on the wall of last hollow stem 2, and every group comprises and be positioned at two through holes that are mutually 180 ° on the same cross section, two positioning steps in outer wall upper edge axial distribution; The top is provided with the through hole that passes for adjustable lever 17.The outer surface of following hollow stem 13 lower half portions is provided with the screw thread that matches with locking nut 12, and its bottom is provided with liquid communication port 13a, and last hollow stem 2 and following hollow stem 13 are assembled by the internal thread of last hollow stem 2 bottoms and the outside thread on following hollow stem 13 tops.The adjusting of the damping force of hydro-pneumatic suspension system mainly realizes by the rotation of regulation valve core 16, orifice valve spool 16 is installed in the hollow piston rod 2, regulation valve core 16 and adjustable lever 17 Joints, by the driving force of this bar input from stepper motor or other power source (not shown), this stepper motor is according to rotating its rotor from a rotation command signal with a computer control device, and above-mentioned rotation command signal is to produce according to a signal that is vertically fixed on the acceleration transducer on the vehicle body freely.
When control valve spool 16 turns to its outer wall with liquid opening 2a, the 2b of last hollow stem 2, when 2c aligns, described external adjustable damper valve is in big damping position.At this moment, the relative position of control valve spool 16, last hollow stem 2 and control valve 5 is shown in Figure 11 a and Figure 12 a, the compression phase half-duplex channel D of external adjustable damper valve as shown in Figure 9, fluid among the first chamber R is by compression phase liquid chunnel 8c, first compression phase damping valve component (7,8d), enter the second chamber S.When control valve spool 16 turn to liquid opening 2b on its liquid stream crack 16c, 16e and the last hollow stem 2, when 2c aligns, described external adjustable damper valve is in middle damping position.At this moment, the relative position of control valve spool 16, last hollow stem 2 and control valve 5 is shown in Figure 11 b and Figure 12 b, fluid in the external adjustable damper valve body is through the second compression phase half-duplex channel C of control valve 5 with through the compression phase half-duplex channel D of overcompression/rebound valve 8, enter the second chamber S from the first chamber R, as shown in Figure 8.Compression phase half-duplex channel D is by compression phase liquid chunnel 8c, and first compression phase damping valve component (7,8d) form; The second compression phase half-duplex channel C comprises two-part: by the liquid communication port 13a of following hollow stem 13 lower ends, go up the boring part of hollow stem 2 and following hollow stem 13, liquid stream crack 16c on the control valve spool 16 and 16e, upward the liquid opening 2b on the hollow stem 2 and 2c, annular chamber 5f, liquid chunnel 5b, second compression phase damping valve component (4,5a), form C
3By the liquid communication port 13a of following hollow stem 13 lower ends, go up the boring part of hollow stem 2 and following hollow stem 13, liquid stream crack 16c on the control valve spool 16 and 16e, upward the liquid opening 2b on the hollow stem 2 and 2c, annular chamber 5f, liquid chunnel 5b, second compression phase damping valve component (6,5c), form C
2When control valve spool 16 turn to liquid opening 2a, 2b on liquid opening 16a, 16b, 16d and the last hollow stem 2, when 2c aligns, described external adjustable damper valve is in little damping position.At this moment, the relative position of control valve spool 16, last hollow stem 2 and control valve 5 is shown in Figure 11 c and Figure 12 c, the fluid of external adjustable damper valve is through the second compression phase half-duplex channel C of control valve 5 with through the compression phase half-duplex channel D of overcompression/rebound valve 8, enter the second chamber S from the first chamber R, as shown in Figure 7.Compression phase half-duplex channel D is by compression phase liquid chunnel 8c, and first compression phase damping valve component (7,8d) form; The second compression phase half-duplex channel C comprises three parts: by the liquid communication port 13a of following hollow stem 13 lower ends, go up the boring part of hollow stem 2 and following hollow stem 13, on the control valve spool 16 liquid opening 16b and 16d, go up liquid opening 2b on the hollow stem 2 and 2c, annular chamber 5f, liquid chunnel 5b, second compression phase damping valve component (4,5a), form C
3By the liquid communication port 13a of following hollow stem 13 lower ends, go up the boring part of hollow stem 2 and following hollow stem 13, on the control valve spool 16 liquid opening 16b and 16d, go up liquid opening 2b on the hollow stem 2 and 2c, annular chamber 5f, liquid chunnel 5b, second compression phase damping valve component (6,5c), form C
2By the liquid communication port 13a of following hollow stem 13 lower ends, go up the boring part of hollow stem 2 and following hollow stem 13, on the control valve spool 16 liquid opening 16a, go up liquid opening 2a, annular chamber 5e, liquid opening 5d on the hollow stem 2, formation C
1The extension phase place half-duplex channel E of external adjustable damper valve as shown in figure 10, the fluid among the second chamber S is by upholding phase place liquid chunnel 8a, first compression phase damping valve component (9,8b), enter into the first chamber R.
The control valve spool size of this invention is little, what guaranteed that external adjustable damper valve can be under different damping power state freely changes and has saved as much as possible manufacture cost, simultaneously because orifice valve is external, improved the radiating condition of damping member, reduced the influence of temperature to the hydro-pneumatic suspension system external characteristics, compression/rebound valve and control valve parallel connection have improved the reliability of damped system.
And because external adjustable damper valve of oil gas suspension is simple in structure, the size of control valve spool is less, makes this control valve element fluid power load torque reduce, and the size of the stepper motor of driving regulator can further reduce, make its overall dimensions reduce, and saved manufacture cost.
Claims (12)
1. an external adjustable damper valve of oil gas suspension comprises valve body, end cap, adjustable lever, holddown spring, it is characterized in that:
A) the external adjustable damper valve body 1, and valve body is provided with accumulator interface 1a and hydro pneumatic suspension cylinder interface 1b;
B) valve body end cap 15 is by clamping bolt 14 and 1 assembling of external adjustable damper valve valve body;
C) hollow stem 2 and following hollow stem 13 are housed in the valve body, compression/rebound valve 8 and the adjustable control valve 5 of area of passage are housed at last hollow stem 2 sidewalls;
D) control valve spool 16 is housed in hollow stem, transmits extraneous driving force by adjustable lever 17;
E) be provided with in compression/rebound valve 8 upper ends first compression phase damping valve component (7,8d);
F) between compression/rebound valve 8 and rebound valve position-arresting disk 10, be equipped with uphold phase place orifice valve assembly (9,8b);
G) be provided with second compression phase damping valve component at the two ends of control valve 5, comprise (4,5a) and (6,5c).
2. external adjustable damper valve of oil gas suspension as claimed in claim 1, it is characterized in that, control valve 5 and compression/rebound valve 8 are divided into the first chamber R and the second chamber S that comprises damping liquid with the inside of valve body, the first chamber R communicates with hydro pneumatic suspension cylinder 23 by oil gas suspension cylinder interface 1b on the valve body 1, and the second chamber S communicates with accumulator 21 by accumulator interface 1a.
3. external adjustable damper valve of oil gas suspension as claimed in claim 1, it is characterized in that, described extension phase place orifice valve assembly (9,8b) comprise overlapped setting and be installed in the dish type throttle valve plate 9 of hollow stem 2 sidewalls, the extension phase place intermediate pressure that the extension phase place seat 8b of the radial surface of dish type throttle valve plate 9 and compression/rebound valve 8 limits receives chamber, compression/rebound valve 8 have with dished plate radial surface end near the extension phase place seat 8b that contacts; First compression phase damping valve component (7,8d) comprise overlapped setting and be installed in the dish type throttle valve plate 7 of hollow stem 2 sidewalls, the compression phase seat 8d of the radial surface of dish type throttle valve plate 7 and compression/rebound valve 8 limits described compression phase intermediate pressure and receives chamber, compression/rebound valve 8 have with dished plate radial surface end near the compression phase seat 8d that contacts; Second compression phase damping valve component (4,5a) comprise overlapped setting and be installed in the dish type throttle valve plate 4 of hollow stem 2 sidewalls, the auxiliary body 5a of the radial surface of dish type throttle valve plate 4 and control valve 5 limits the second phase place intermediate pressure and receives chamber, control valve 5 have with dished plate radial surface end near the auxiliary body 5a that contacts, second compression phase damping valve component (6,5c) comprise overlapped setting and be installed in the dish type throttle valve plate 6 of hollow stem 2 sidewalls, control valve 5 have with dished plate radial surface end near the auxiliary body 5c that contacts.
4. external adjustable damper valve of oil gas suspension as claimed in claim 1 is characterized in that, last hollow stem 2 is provided with the liquid opening 2a that radially penetrates, 2b, and 2c, and two positioning steps in outer wall upper edge axial distribution; The top is provided with the through hole that passes for adjustable lever 17, and bottom interior wall is provided with the internal thread of control valves spool 16 lower end axially locating; Following hollow stem 13 upper half part outer walls are provided with the outside thread of control valves spool 16 axially locating, and lower half portion outer wall is provided with the outside thread that matches with lock bolt 11, and the bottom is provided with liquid communication port 13a; The liquid opening 5d that control valve 5 is provided with the compression phase liquid chunnel 5b that penetrates vertically and radially penetrates, and be provided with annular chamber 5f that is communicated with liquid chunnel 5b and the annular chamber 5e that is communicated with liquid opening 5d; Its upper axial end is by last positioning block 3 constraints; Control valve spool 16 is a hollow structure, can rotate in last hollow stem 2, is provided with lining 19a, 19b at the two ends of control valve spool 16, this control valve spool outer wall diverse location is provided with the through hole 16a that radially penetrates, 16b, 16d and the crack 16c that radially penetrates, 16e; Compression/rebound valve 8 is fixed on the periphery of hollow stem 2 vertically, compression/rebound valve 8 is provided with compression phase liquid chunnel 8c and upholds phase place liquid chunnel 8a along the conical surface that with its axis is center line, this compression/rebound valve 8 is provided with the pressure receiving cavity chamber of upholding in the middle of the phase place around the outlet of described extension phase place liquid chunnel 8a, is provided with the compression phase intermediate pressure in the outlet of described compression phase liquid chunnel 8c and receives chamber.
5. external adjustable damper valve of oil gas suspension as claimed in claim 1 is characterized in that, on rebound valve position-arresting disk 10 surfaces holddown spring 11 is housed, and the one end is pressed in rebound valve position-arresting disk 10 surfaces, and the other end is retrained by locking nut 12.
6. external adjustable damper valve of oil gas suspension as claimed in claim 1, it is characterized in that, the control valve 5 and second compression phase damping valve component (4,5a) with (6,5c) form half-duplex channel C, under big damping state, the outer wall of control valve spool 16 aligns with through hole 2a, 2b, 2c on the last hollow stem, and this passage ends; Under middle damping state, this passage by the port 13a of following hollow stem 13 lower ends, go up the boring part of hollow stem 2 and following hollow stem 13, liquid stream crack 16c on the control valve spool 16 and 16e, upward the liquid opening 2b on the hollow stem 2 and 2c, annular chamber 5f, liquid chunnel 5b, second compression phase damping valve component (4,5a), form C
3By the port 13a of following hollow stem 13 lower ends, go up the boring part of hollow stem 2 and following hollow stem 13, liquid stream crack 16c on the control valve spool 16 and 16e, upward the liquid opening 2b on the hollow stem 2 and 2c, annular chamber 5f, liquid chunnel 5b, second compression phase damping valve component (6,5c), form C
2Under little damping state, this passage by the port 13a of following hollow stem 13 lower ends, go up hollow stem 2 and following hollow stem 13 boring partly, liquid opening 2b on liquid opening 16b on the control valve spool 16 and 16d, the hollow stem 2 and 2c, annular chamber 5f, liquid chunnel 5b, second compression phase damping valve component (4,5a), form C
3By the port 13a of hollow stem 13 lower ends, go up through hole 2b on the boring part of hollow stem 2 and following hollow stem 13, liquid opening 16b on the control valve spool 16 and 16d, the last hollow stem 2 and 2c, annular chamber 5f, liquid chunnel 5b, second compression phase damping valve component (6,5c), form C
2By the port 13a of following hollow stem 13 lower ends, go up the boring part of hollow stem 2 and following hollow stem 13, on the control valve spool 16 liquid opening 16a, go up through hole 2a, annular chamber 5e, liquid opening 5d on the hollow stem 2, formation C
1
7. external adjustable damper valve of oil gas suspension as claimed in claim 3 is characterized in that, and first compression phase damping valve component (7,8d), liquid chunnel 8c, compression phase intermediate pressure receive chamber and constitute compression phase half-duplex channel D; Uphold phase disk form drag Buddhist nun valve assembly (9,8b), liquid chunnel 8a, uphold the phase place intermediate pressure and receive chamber and constitute and uphold phase place half-duplex channel E.
8. external adjustable damper valve of oil gas suspension as claimed in claim 4 is characterized in that, the described liquid opening 2a that goes up on the hollow stem 2 aligns with annular chamber 5e, and the liquid opening 2b, the 2c that go up on the hollow stem 2 align with annular chamber 5f.
9. external adjustable damper valve of oil gas suspension as claimed in claim 1, it is characterized in that, adjustment pad 20a, 20b, 20c, 20d are housed respectively at the two ends of control valve 5 and compression/rebound valve 8, near first, second compression phase and extension phase place orifice valve assembly, so that the degree of crook of first, second above-mentioned compression phase and extension phase place orifice valve assembly is less than or equal to its predetermined degree of crook; Seal ring 18a, 18b, 18c are housed in external adjustable damper valve of oil gas suspension 22, and 18d is in order to guarantee the sealing of described external adjustable damper valve; Copper lining 19a, 19b are housed, the frictional force when rotating in order to reduce control valve spool 16 at the two ends of control valve spool 16.
10. external adjustable damper valve of oil gas suspension as claimed in claim 6 is characterized in that, the cross section of the compression phase liquid chunnel 5b of described control valve 5 is circular, and quantity is six, evenly distributes along the circumference of control valve.
11. external adjustable damper valve of oil gas suspension as claimed in claim 7, it is characterized in that, the cross section of the liquid chunnel 8c of described compression phase is circular, quantity is eight, circumference along described compression/rebound valve 8 evenly distributes, and the cross section of the liquid chunnel 8a of described extension phase place is circular, and quantity is eight, circumference along described compression/rebound valve 8 evenly distributes, and the liquid chunnel of adjacent compression phase is 22.5 ° with extending the phase place liquid chunnel along circumferential angle.
12. external adjustable damper valve of oil gas suspension as claimed in claim 4, it is characterized in that, the liquid opening 16a of described control valve spool 16,16b, the centerline of 16d is in a plane crossing its axis, liquid stream crack 16c, the centerline of 16e is in another plane of crossing its axis, and the angle on two planes is 60 °, the centerline of the center line of liquid opening 16a and the liquid opening 2a on the last hollow stem 2 is in the same cross section perpendicular to last hollow stem 2 axis, liquid opening 16b, the center line of liquid stream crack 16c and the centerline of the liquid opening 2b on the last hollow stem 2 in same cross section perpendicular to last hollow stem 2 axis, liquid opening 16d, the centerline of the center line of liquid stream crack 16e and the liquid opening 2c of last hollow stem 2 is in the same cross section perpendicular to last hollow stem 2 axis.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102260652A CN101392810B (en) | 2008-11-05 | 2008-11-05 | External adjustable damper valve of oil gas suspension |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102260652A CN101392810B (en) | 2008-11-05 | 2008-11-05 | External adjustable damper valve of oil gas suspension |
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| CN101392810A true CN101392810A (en) | 2009-03-25 |
| CN101392810B CN101392810B (en) | 2010-08-25 |
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| CN2008102260652A Expired - Fee Related CN101392810B (en) | 2008-11-05 | 2008-11-05 | External adjustable damper valve of oil gas suspension |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101871502A (en) * | 2010-06-22 | 2010-10-27 | 北京理工大学 | External mechanical induction type adjustable damping valve of oil-gas suspension |
| CN102094927A (en) * | 2011-01-14 | 2011-06-15 | 北京理工大学 | Integral type pneumatic spring with controllable third-level damp and adaptive second-level stiffness |
| CN102644693A (en) * | 2012-05-11 | 2012-08-22 | 株洲时代新材料科技股份有限公司 | Adjustment method for dynamic stiffness of rubber joint with liquid damping, and rubber joint |
| CN103225665A (en) * | 2013-05-13 | 2013-07-31 | 南阳淅减汽车减振器有限公司 | Recovery damping valve for shock absorber |
| CN103511541A (en) * | 2012-06-21 | 2014-01-15 | Zf腓特烈斯哈芬股份公司 | Adjustable damping valve arrangement |
| CN108443392A (en) * | 2018-04-28 | 2018-08-24 | 南京林业大学 | A kind of displacement correlation variable force variable damping parameter fluid linking damper |
| CN109139775A (en) * | 2018-11-02 | 2019-01-04 | 浙江戈尔德减震器股份有限公司 | A kind of external damping regulating valve applied to automobile absorber |
| CN109476200A (en) * | 2016-03-15 | 2019-03-15 | 夸德罗车辆公司 | Improved suspension |
| CN110475985A (en) * | 2017-07-27 | 2019-11-19 | 日立汽车系统株式会社 | Buffer |
| CN112984020A (en) * | 2019-12-17 | 2021-06-18 | 什拉姆有限责任公司 | Bicycle suspension component and electronic control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101871502A (en) * | 2010-06-22 | 2010-10-27 | 北京理工大学 | External mechanical induction type adjustable damping valve of oil-gas suspension |
| CN102094927A (en) * | 2011-01-14 | 2011-06-15 | 北京理工大学 | Integral type pneumatic spring with controllable third-level damp and adaptive second-level stiffness |
| CN102644693A (en) * | 2012-05-11 | 2012-08-22 | 株洲时代新材料科技股份有限公司 | Adjustment method for dynamic stiffness of rubber joint with liquid damping, and rubber joint |
| CN103511541A (en) * | 2012-06-21 | 2014-01-15 | Zf腓特烈斯哈芬股份公司 | Adjustable damping valve arrangement |
| CN103225665A (en) * | 2013-05-13 | 2013-07-31 | 南阳淅减汽车减振器有限公司 | Recovery damping valve for shock absorber |
| CN103225665B (en) * | 2013-05-13 | 2015-04-15 | 南阳淅减汽车减振器有限公司 | Recovery damping valve for shock absorber |
| CN109476200A (en) * | 2016-03-15 | 2019-03-15 | 夸德罗车辆公司 | Improved suspension |
| CN110475985A (en) * | 2017-07-27 | 2019-11-19 | 日立汽车系统株式会社 | Buffer |
| CN108443392A (en) * | 2018-04-28 | 2018-08-24 | 南京林业大学 | A kind of displacement correlation variable force variable damping parameter fluid linking damper |
| CN109139775A (en) * | 2018-11-02 | 2019-01-04 | 浙江戈尔德减震器股份有限公司 | A kind of external damping regulating valve applied to automobile absorber |
| CN109139775B (en) * | 2018-11-02 | 2024-02-27 | 浙江戈尔德智能悬架股份有限公司 | External damping regulating valve applied to automobile shock absorber |
| CN112984020A (en) * | 2019-12-17 | 2021-06-18 | 什拉姆有限责任公司 | Bicycle suspension component and electronic control device |
| US11724769B2 (en) | 2019-12-17 | 2023-08-15 | Sram, Llc | Bicycle suspension components and electronic control devices |
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| CN101392810B (en) | 2010-08-25 |
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