CN220227633U - Novel low-speed large-damping transverse shock absorber recovery valve and valve pin - Google Patents

Abstract

The utility model discloses a novel low-speed large-damping transverse shock absorber recovery valve and a valve pin, which relate to the technical field of shock absorbers, in particular to a novel low-speed large-damping transverse shock absorber valve pin, comprising a valve pin body, wherein two ends of the valve pin body are respectively a thick end and a thin end, an annular boss is arranged at the joint of the thick end and the thin end of the valve pin body and positioned at the outer side wall, a valve pin groove is axially formed in the thick end of the valve pin body, the valve pin groove reaches the middle part of the valve pin body and is positioned at the upper part of the thin end of the valve pin body, and a side hole is formed in the side wall of the thick end of the valve pin body and positioned at the valve pin groove; through set up a plurality of valve pins on the main valve body, make this novel horizontal shock absorber of low-speed big damping restore valve possess the effect of controlling the interior oil flow volume of liquid chute, realize the adjustment of damping size through the interior oil flow volume of adjustment control valve pin to realize the shock absorber and reach big damped purpose under the low-speed state.

Description

Novel low-speed large-damping transverse shock absorber recovery valve and valve pin

Technical Field

The utility model relates to the technical field of vibration dampers, in particular to a novel low-speed large-damping transverse vibration damper restoration valve and a valve pin.

Background

Along with the demand of customer riding comfort, the demand of vibration reduction performance is continuously improved, the influence of the vibration absorber on the comfort is relatively large, the factors influencing the performance of the vibration absorber are various, the piston valve system is the most main component of the vibration absorber generating damping force when the suspension spring is stretched and restored, and the vibration absorber must give different damping matches according to different road conditions and speeds, but must be suitable for achieving the riding comfort operation stability.

At present, the transverse shock absorber has small low-speed (0.01 m/s,0.02m/s,0.03m/s and 0.04 m/s) damping, and the damping is generally below 5000N. The current valve system structure mainly controls the low-speed (0.01 m/s,0.02m/s,0.03m/s and 0.04 m/s) damping of the shock absorber by means of the opening size of a throttle valve plate (please see the throttle valve plate 6 in fig. 1) and the clearance between a piston valve and a working cylinder, and the shock absorber has a shorter working stroke and a lower speed because of the shorter working stroke of the transverse shock absorber, so that the larger damping is difficult to obtain under the condition of the low speed of the shock absorber. In order to obtain larger damping of the shock absorber under the low-speed condition, the existing valve system structure mainly relies on reducing the fit clearance of parts to enable oil to pass through to generate damping; however, the damper is increased in damping by reducing the tolerance of parts, so that the damper is blocked during assembly, and the production efficiency is affected.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a novel low-speed large-damping transverse shock absorber recovery valve and a valve pin, and solves the problems in the prior art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a novel low-speed big damping transverse shock absorber valve pin, includes the valve pin body, the both ends of valve pin body are thick end and thin end respectively, the thick end of valve pin body and thin end junction and be located lateral wall department have annular boss, the thick end of valve pin body has seted up the valve pin groove along the axial, the valve pin groove reaches the middle part of valve pin body and is located the upper portion of valve pin body thin end deeply, the side opening has been seted up on the thick end lateral wall of valve pin body and located valve pin groove department; the valve pin body is thin and is close to the valve pin hole has been seted up on the lateral wall of annular boss, valve pin hole and valve pin groove intercommunication.

Optionally, the valve pin hole number can be a plurality of, the adjustment of valve pin hole pore size and quantity on the valve pin body can realize controlling fluid throughput.

The novel low-speed large-damping transverse shock absorber reset valve comprises a main valve body, wherein a plurality of annular evenly-distributed liquid flow grooves are formed in the main valve body, a valve pin body according to the claim is arranged in each liquid flow groove of the main valve body, and a spring is sleeved on the outer side wall of the thin end of the valve pin body; a piston rod mounting hole is formed in the middle of the main valve body.

Optionally, the main valve body includes valve body a, valve body B respectively, all offered on valve body a and the valve body B and mutually support the liquid flow channel that corresponds, every the valve pin body sets up in every liquid flow channel after valve body a and the cooperation of valve body B are assembled, a plurality of have the thick end of half valve pin body towards valve body a in the valve pin body, a plurality of the thick end of other half valve pin body in the valve pin body towards valve body B.

Optionally, the valve body a and the valve body B are provided with a plurality of pin grooves corresponding to each other, and pins are arranged in the plurality of pin grooves corresponding to each other on the valve body a and the valve body B.

Optionally, valve body A keeps away from valve body B's one end and is located the first annular bulge on the lateral wall, valve body A's lateral wall middle part has seted up the seal groove, seal groove department is provided with the sealing washer, the sealing washer adopts rubber material to make.

Optionally, valve body B keeps away from valve body A's one end and is located there is the second annular arch on the lateral wall, valve body B's lateral wall is last and be located the bellied one side cover of second annular and be equipped with the piston ring, the upper end and the sealing washer butt of piston ring and the other end and the bellied butt of second annular.

Optionally, one end of the spring is abutted with the annular boss of the valve pin body, and a spring pad is arranged at the abutting position.

The utility model provides a novel low-speed large-damping transverse shock absorber recovery valve and a valve pin, which have the following beneficial effects:

1. this novel low-speed big damping horizontal shock absorber recovery valve through setting up a plurality of valve pins on the main valve body, makes this novel low-speed big damping horizontal shock absorber recovery valve possess the effect of controlling the interior oil flow volume of liquid chute, realizes the adjustment of damping size through the interior fluid flow volume of adjustment control valve pin to realize the shock absorber and reach big damped purpose under low-speed state.

2. This novel low-speed big damping transverse damper valve pin through offer valve pin groove, side opening and valve pin hole on the valve pin body, makes the valve pin under the condition that does not reduce the tolerance (also refer to the whole parameter that does not reduce or reduce the valve pin), makes fluid can flow through the valve pin groove, the valve pin hole of intercommunication each other, can realize that the shock absorber reaches big damping under the low-speed state to when the shock absorber assembly, also can not lead to the shock absorber jamming, improved the production efficiency of shock absorber.

Drawings

FIG. 1 is a schematic diagram of a prior art valve train (specifically, a part dispersion or explosion diagram);

FIG. 2 is a schematic perspective view of a novel low-speed high-damping transverse shock absorber rebound valve according to the present utility model;

FIG. 3 is a schematic illustration of the component dispersion (exploded view) structure of a novel low-speed large-damping transverse shock absorber restoring valve of the present utility model;

FIG. 4 is a schematic view of a three-dimensional (bottom view) structure of a novel low-speed high-damping lateral shock absorber valve pin of the present utility model;

FIG. 5 is a schematic view of a three-dimensional (overhead) structure of a novel low-speed, high-damping lateral shock absorber valve pin of the present utility model;

FIG. 6 is a schematic cross-sectional view of a novel low-speed high damping lateral shock absorber valve pin of the present utility model;

FIG. 7 is a graph of damping force versus data for a novel low speed high damping lateral shock absorber rebound valve train configuration of the present utility model versus a prior art valve train configuration at low speed.

In the figure: 1. a valve body A; 2. a valve body B; 3. a seal ring; 4. a nut; 5. a piston rod mounting hole; 6. a throttle plate; 7. a valve pin body; 701. a side hole; 702. a valve pin hole; 703. an annular boss; 704. a valve pin slot; 8. a spring; 9. a spring pad; 10. a pin; 11. a liquid flow groove; 12. a pin slot; 13. piston rings; 14. and (5) sealing the groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 to 7, the present utility model provides the following technical solutions: the utility model provides a novel low-speed big damping lateral shock absorber valve pin, including valve pin body 7, the both ends of valve pin body 7 are thick end and thin end respectively, and the thick end of valve pin body 7 is located outside wall department and has annular boss 703 with thin end junction, and valve pin body 7 thick end has seted up valve pin groove 704 along the axial, and valve pin groove 704 degree of depth reaches valve pin body 7 middle part and is located valve pin body 7 thin end's upper portion, and valve pin body 7 thick end lateral wall is located valve pin groove 704 department and has been seted up side hole 701; the valve pin body 7 has a valve pin hole 702 formed in the outer wall thereof adjacent to the annular boss 703, and the valve pin hole 702 communicates with the valve pin groove 704. The number of the valve pin holes 702 can be multiple, and the adjustment of the aperture size and the number of the valve pin holes 702 on the valve pin body 7 can realize the control of the oil throughput (the flow of oil through the valve pin) so as to meet the requirement of low-speed large damping.

Through offer valve pin groove 704, side opening 701 and valve pin hole 702 on the valve pin body, make the valve pin under the condition of not reducing the tolerance (also refer to not reducing or reducing the overall parameters of valve pin), make fluid can flow through the valve pin groove 704 of intercommunication, valve pin hole 702 each other, can realize that the shock absorber reaches big damping under the low-speed state to when the shock absorber assembly, also can not lead to the shock absorber jamming, improved the production efficiency of shock absorber.

The utility model provides a novel low-speed big damping transverse shock absorber recovery valve, includes the main valve body, has seted up a plurality of liquid flow grooves 11 that are annular evenly arranged on the main valve body, all is provided with valve pin body 7 in every liquid flow groove 11 of the main valve body, and the thin end lateral wall cover of valve pin body 7 is equipped with spring 8, and the one end and the annular boss 703 butt and the butt department of valve pin body 7 of spring 8 are provided with spring pad 9, and wherein, spring pad 9 is used for adjusting the spring compression volume, can take the place or adjust gasket thickness as required when actual implementation. The middle part of the main valve body is provided with a piston rod mounting hole 5. The hydraulic oil (also referred to as oil) can flow through each of the oil grooves 11, can flow through the valve pin body 7 located in the oil groove 11, and can specifically flow through the valve pin groove (704) and the valve pin hole 702 on the valve pin body 7. The valve pin hole 702 aperture on the valve pin body 7 is adjusted, the oil passing amount (hydraulic oil flow) of the shock absorber during low speed is adjusted to control low speed damping, the valve opening point of the shock absorber is controlled through P value adjustment of the springs 8 (the springs 8 with different P values are selected according to different damping requirements), medium and high speed damping is adjusted, and the structure can simultaneously control restoration and compression damping adjustment.

Specifically, the main valve body includes valve body A1, valve body B2 respectively, has all offered the liquid flow channel 11 that corresponds mutually supporting on valve body A1 and the valve body B2, and every valve pin body 7 sets up in every liquid flow channel 11 after valve body A1 and the valve body B2 cooperation equipment, and the thick end of half valve pin body 7 among a plurality of valve pin bodies 7 is towards valve body A1, and the thick end of other half valve pin body 7 among a plurality of valve pin bodies 7 is towards valve body B2. Here, in order to be able to fit the valve pin body 7 inside the main valve body, the main valve body is divided into two parts, namely, a valve body A1 and a valve body B2. The split arrangement of the valve body A1 and the valve body B2 can facilitate the assembly of the valve pin body 7.

More specifically, the valve body A1 and the valve body B2 are respectively provided with a plurality of mutually matched corresponding pin grooves 12, and the valve body A1 and the valve body B2 are respectively internally provided with the pins 10 in the mutually matched corresponding pin grooves 12. After the valve pin body 7 is assembled in the corresponding fluid grooves 11 of the valve body A1 and the valve body B2, in order to enhance the connection strength of the valve body A1 and the valve body B2 and the comparison parameters of the fluid grooves 11, a plurality of pins 10 are provided between the valve body A1 and the valve body B2, and the plurality of pins 10 limit the positions of the valve body A1 and the valve body B2 to prevent the two from being deviated and enhance the connection strength of the two.

Further specifically, one end of the valve body A1, which is far away from the valve body B2, is provided with a first annular bulge on the outer side wall, the middle part of the outer side wall of the valve body A1 is provided with a sealing groove 14, a sealing ring 3 is arranged at the sealing groove 14, and the sealing ring 3 is made of rubber materials. The sealing ring 3 is used for meeting the sealing strength of the rebound valve in the shock absorber cylinder barrel during reciprocating motion.

Further specifically, one end of the valve body B2 away from the valve body A1 and located on the outer side wall is provided with a second annular bulge, one side of the outer side wall of the valve body B2 and located on the second annular bulge is sleeved with a piston ring 13, the upper end of the piston ring 13 is abutted with the sealing ring 3, and the other end of the piston ring is abutted with the second annular bulge. The piston ring 13 is used for covering the outer side walls of the valve body B2 and the valve body A1, enhancing the connection tightness of the valve body B2 and the valve body A1, sealing the abutting surface of the valve body B2 and the valve body A1, and preventing the liquid in the liquid flow groove 11 from flowing out through the gap of the abutting surface of the valve body A1 and the valve body B2.

The application shows a novel low-speed big damping transverse shock absorber recovery valve, through set up a plurality of valve pins on the main valve body, makes this novel low-speed big damping transverse shock absorber recovery valve possess the effect of controlling the interior oil flow volume of liquid chute 11, realizes the adjustment of damping size through the interior fluid flow volume of adjustment control valve pin to realize the shock absorber and reach big damped purpose under the low-speed state. The valve pin hole 702 aperture on the valve pin body 7 is adjusted, the oil passing amount (hydraulic oil flow) of the shock absorber during low speed is adjusted to control low speed damping, the valve opening point of the shock absorber is controlled through P value adjustment of the springs 8 (the springs 8 with different P values are selected according to different damping requirements), medium and high speed damping is adjusted, and the structure can simultaneously control restoration and compression damping adjustment. The chassis transverse shock absorber has excellent durability and quick assembly, and can be widely applied to chassis transverse shock absorbers.

Damping force at low speed versus (see fig. 7): the comparative bodies were the prior art valve train structure (see FIG. 1) and the recovery valve structure shown in the present application (i.e., the valve pin train structure of FIG. 7), respectively, and the comparative data included damping force in the tensile state and damping force in the compressive state (unit: N) at low speeds (0.01 m/s,0.02m/s,0.03m/s,0.04 m/s). Through specific implementation and experimental comparison, after the recovery valve and the valve pin shown in the application of the valve pin in the transverse shock absorber, the damping force of the shock absorber is greatly increased in a low-speed state, and the shock absorbing effect is better.

When assembled: 1. the sealing ring 3 is sleeved in a sealing groove 14 of the outer side wall of the valve body B2;

2. the springs 8 are sleeved on the outer side wall of the thin end of the valve pin body 7 (whether the spring pad 9 is used or not is selected according to the requirement, the thickness of the spring pad 9 is adjusted according to the requirement, and the spring pad 9 cannot shade the valve pin hole 702);

3. inserting each pin 10 into a pin groove 12 on the valve body A1, and placing each valve pin body 7 (including the spring 8) into a flow groove 11 of the valve body A1 (half of the valve pin bodies 7 have thick ends facing the valve body A1, and half of the valve pin bodies 7 have thin ends facing the valve body A1 and are arranged to be mutually interposed);

4. the piston ring 13 is sleeved on the outer side wall of the valve body A1; the valve body B2 is placed above the valve body A1, the upper ends of the valve pin bodies 7 are positioned in the liquid flow groove 11 of the valve body B2, the upper ends of the pins 10 are positioned in the pin groove 12 of the valve body B2, the lower part of the valve body B2 is positioned in the piston ring 13, and the lower surface of the valve body B2 is abutted against the upper surface of the valve body A1;

5. the end head of the piston rod of the shock absorber is inserted into (and penetrates through) a piston rod mounting hole 5 of the main valve body, the piston rod of the shock absorber is in threaded connection with a nut 4 after penetrating through the piston rod mounting hole 5 of the main valve body (comprising a valve body A1 and a valve body B2), the nut 4 is screwed down, the nut 4 is connected and fastened with the piston rod, and meanwhile the valve body A1 and the valve body B2 are connected and fastened.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (8)

1. A novel valve pin of a low-speed large-damping transverse shock absorber is characterized in that: the valve pin comprises a valve pin body (7), wherein the two ends of the valve pin body (7) are respectively a thick end and a thin end, an annular boss (703) is arranged at the joint of the thick end and the thin end of the valve pin body (7) and positioned at the outer side wall, a valve pin groove (704) is formed in the thick end of the valve pin body (7) along the axial direction, the depth of the valve pin groove (704) reaches the middle part of the valve pin body (7) and is positioned at the upper part of the thin end of the valve pin body (7), and a side hole (701) is formed in the side wall of the thick end of the valve pin body (7) and positioned at the valve pin groove (704); the valve pin body (7) is thin and is close to the outer side wall of the annular boss (703) and is provided with a valve pin hole (702), and the valve pin hole (702) is communicated with the valve pin groove (704).

2. The novel low-speed high damping lateral shock absorber valve pin of claim 1, wherein: the valve pin hole (702) quantity can be a plurality of, the adjustment of valve pin hole (702) aperture size and quantity on valve pin body (7) can realize controlling fluid throughput.

3. A novel low-speed large-damping transverse shock absorber reset valve is characterized in that: the valve comprises a main valve body, wherein a plurality of annular evenly-distributed liquid flow grooves (11) are formed in the main valve body, a valve pin body (7) according to claim 1 is arranged in each liquid flow groove (11) of the main valve body, and a spring (8) is sleeved on the outer side wall of the thin end of the valve pin body (7); a piston rod mounting hole (5) is formed in the middle of the main valve body.

4. A novel low-speed high-damping transverse shock absorber reset valve according to claim 3, wherein: the main valve body comprises a valve body A (1) and a valve body B (2), wherein the valve body A (1) and the valve body B (2) are respectively provided with a liquid flow groove (11) which corresponds to each other in a matched mode, each valve pin body (7) is arranged in each liquid flow groove (11) formed after the valve body A (1) and the valve body B (2) are matched and assembled, the thick ends of half valve pin bodies (7) in the valve pin bodies (7) face the valve body A (1), and the thick ends of the other half valve pin bodies (7) in the valve pin bodies (7) face the valve body B (2).

5. The novel low-speed high-damping transverse shock absorber recovery valve according to claim 4, wherein: the valve body A (1) and the valve body B (2) are provided with a plurality of mutually matched corresponding pin grooves (12), and pins (10) are arranged in the mutually matched corresponding pin grooves (12) of the valve body A (1) and the valve body B (2).

6. The novel low-speed high-damping transverse shock absorber recovery valve according to claim 4, wherein: the valve body A (1) is far away from one end of the valve body B (2) and is located on the outer side wall and provided with a first annular bulge, the middle of the outer side wall of the valve body A (1) is provided with a sealing groove (14), the sealing groove (14) is provided with a sealing ring (3), and the sealing ring (3) is made of rubber materials.

7. The novel low-speed high-damping transverse shock absorber recovery valve according to claim 4, wherein: the valve body B (2) is far away from one end of the valve body A (1) and is located on the outer side wall, a piston ring (13) is sleeved on the outer side wall of the valve body B (2) and located on one side of the second annular protrusion, and the upper end of the piston ring (13) is abutted to the sealing ring (3) and the other end of the piston ring is abutted to the second annular protrusion.

8. A novel low-speed high-damping transverse shock absorber reset valve according to claim 3, wherein: one end of the spring (8) is abutted with an annular boss (703) of the valve pin body (7), and a spring pad (9) is arranged at the abutting part.