TWM631805U - Structure Improvement of Vehicle Shock Absorber - Google Patents

Abstract

A structural improvement of a shock absorber for vehicles, comprising an outer cylinder and a shock absorber of the shock absorber; the outer barrel and the shock absorber include at least three axial sliding bearings and an auxiliary sliding vane; three shafts of the shock absorber The direction sliding bearing and the auxiliary sliding plate are both located between the outer cylinder and the cylinder body of the shock-absorbing cylinder, and the auxiliary sliding plate is sandwiched by the two axial sliding bearings on both sides of the shock absorber in the telescopic direction. The axial sliding bearing and the auxiliary sliding vane make the relative movement of the outer cylinder and the cylinder body of the shock absorber in the expansion and contraction direction of the shock absorber to have low friction characteristics; the axial sliding bearing and the auxiliary sliding vane make the cylinder body of the damping cylinder outside The radial limit is obtained in the cylinder to improve the radial stability; when the vehicle turns and the shock absorber is subjected to unilateral uneven thrust, the auxiliary sliding vane can provide a stable force opposite to the uneven thrust, reducing the axial sliding bearing Often suffered from uneven thrust and wear damage.

Description

Structure Improvement of Vehicle Shock Absorber

This creation relates to a shock absorber, and more specifically, to the structural improvement of an inverted-insertion shock absorber.

The shock absorber can be divided into upright and inverted according to the installation direction. The shock absorber can be divided into a single-cylinder structure and a double-cylinder structure according to the distribution of oil and gas. Inverted shock absorbers mostly adopt a single-tube structure.

TWI600847B (hereinafter referred to as the 847 case) describes a single-tube inverted shock absorber, the main technical feature of which is the arrangement of bearings and O-rings between the outer tube and the shock-absorbing tube. In the 847 case, at least three bearings are arranged between the inner surface of the outer cylinder and the outer surface of the damping cylinder, so that the cylinder body of the damping cylinder can slide relative to the outer cylinder along the expansion and contraction direction of the shock absorber. An O-ring is sandwiched between two adjacent bearings, and the O-ring provides a stabilizing force relative to the radial limit of the outer cylinder to the shock-absorbing cylinder to stabilize the sliding between the outer cylinder and the shock-absorbing cylinder 20. shift.

The purpose of this creation is to further improve the arrangement of the bearings and O-rings of the single-tube inverted shock absorber, so as to improve the radial limit and stability force of the outer cylinder on the shock absorber cylinder, so that the outer cylinder and the shock absorber can be connected to the shock absorber. The slip between the shock cylinders has higher stability.

The technical features of this creation to achieve the above purpose:

A structural improvement of a shock absorber for vehicles, comprising an outer cylinder and a shock absorber of the shock absorber; the shock absorber includes a barrel and a piston rod; the barrel has an outer surface facing the outer barrel. An inner surface is coaxially sleeved in the outer cylinder, the piston rod is fixed to the lower end of the outer cylinder, and the other end of the piston rod penetrates into the cylinder; the cylinder also includes a distribution configuration for oil and gas; it is characterized in that:

The outer cylinder and the damping cylinder include at least three axial sliding bearings and an auxiliary sliding vane; the three axial sliding bearings and the auxiliary sliding vane are located on the inner surface of the outer cylinder and the outer surface of the cylinder body between the surfaces and fixed on the inner surface of the outer cylinder; the auxiliary sliding vane is sandwiched by two of the three axial sliding bearings on both sides of a telescopic direction of the shock absorber .

The effect of this creation:

The shock absorber acts in the telescopic direction to buffer the impact of the vehicle traveling on the uneven road. The axial sliding bearing and the auxiliary sliding vane enable the sliding action between the outer cylinder and the cylinder body of the damping cylinder to have low friction characteristics.

Axial sliding bearings and auxiliary sliding vanes enable the cylinder of the shock-absorbing cylinder to obtain a radial limit in the outer cylinder, and keep the cylinder of the shock-absorbing cylinder at the center of the outer cylinder, so that the radial stability of the cylinder in the outer cylinder is higher. The relative movement stability of the outer cylinder and the shock-absorbing cylinder body in the telescopic direction can be further improved.

When the vehicle turns and the shock absorber is subjected to a curved, one-sided uneven thrust, the auxiliary sliding vane can provide a stable force opposite to the uneven thrust to counteract the uneven thrust and reduce the frequent failure of the axial sliding bearing. It is subject to uneven thrust and wear and damage, thereby extending the service life of the shock absorber.

10: outer cylinder

101: inner surface

20: shock absorber

21: Cylinder

211: outer surface

22: Piston rod

23: Working Piston

24: The first ring groove

25: The second ring groove

30: Axial Lubrication Assembly

31: Axial sliding bearing

32: Axial sliding bearing

33: Axial sliding bearing

34: Auxiliary Slider

51: O-ring

52: Dust-proof oil seal

D: stretch direction

L1: Axial length of axial plain bearing

L2: Axial length of axial plain bearing

L3: Axial length of auxiliary slide

[Figure 1] The plan view of the shock absorber outer tube and the shock absorber tube of this creation.

[Figure 2] The cross-sectional view of the shock absorber outer tube and the shock absorber tube of this creation.

[Fig. 3] A partial cross-sectional view according to Fig. 2. [Fig.

In order to facilitate the description of the central idea expressed in the column of the above-mentioned novel content of the present creation, specific embodiments are hereby expressed. Various objects in the embodiments are drawn according to proportions, sizes, deformations or displacements suitable for description, rather than the proportions of actual elements, which will be described first.

As shown in Fig. 1 to Fig. 3 , the outer cylinder 10 and the damping cylinder 20 of the shock absorber of the present invention are shown. The damping cylinder 20 includes a cylinder body 21 and a piston rod 22 . The outer surface 211 of the cylinder 21 is coaxially sleeved in the outer cylinder 10 in such a way that the outer surface 211 faces the inner surface 101 of the outer cylinder 10 . The inside of the cylinder body 21 also includes the distribution configuration of oil and gas and the working piston 23 that cooperates with the oil and gas compression action. This part is not a technical feature of the present invention, and will not be repeated here.

The outer cylinder 10 and the damping cylinder 20 of the present invention also include at least three axial sliding bearings 31 , 32 , 33 and an auxiliary sliding plate 34 . The axial sliding bearings 31 , 32 , 33 and the auxiliary sliding vanes 34 are located between the inner surface 101 of the outer cylinder 10 and the outer surface 211 of the damping cylinder 20 , and are fixed to the inner surface 101 of the outer cylinder 10 . The material of the auxiliary slider 34 includes but is not limited to Teflon. The auxiliary sliding vane 34 is sandwiched by two of the three axial sliding bearings 31 and 32 on both sides of the shock absorber expansion and contraction direction D, so that the cylinder body 21 can expand and contract along the shock absorber relative to the outer cylinder 10 Direction D is slidable. The three axial sliding bearings 31, 32, 33 are selected from self-lubricating bearings, which can maintain low friction characteristics without oil supply.

In the present invention, the outer cylinder 10 and the shock-absorbing cylinder 20 further include an O-ring 51 and a dust-proof oil seal 52 . The O-ring 51 and the dust-proof oil seal 52 are respectively limited in the first ring groove 24 and the second ring groove 25 at the top of the outer cylinder 10 , and are tightly sleeved on the outer surface 211 of the cylinder body 21 . The position of the dust oil seal 52 is on the shock absorber Above the O-ring 51 in the telescopic direction.

The shock absorber acts in the telescopic direction D to buffer the impact of the vehicle traveling on the uneven road. Therefore, the relative movement of the outer cylinder 10 and the shock absorber cylinder body 21 in the telescopic direction D must maintain low friction characteristics. The axial sliding bearings 31 , 32 , and 33 and the auxiliary sliding vane 34 enable the sliding between the outer cylinder 10 and the cylinder body 21 of the damping cylinder 20 to have low friction characteristics.

Axial sliding bearings 31 , 32 , 33 , auxiliary sliding vanes 34 and O-rings 51 enable the cylinder body 21 of the damping cylinder 20 to obtain a radial limit in the outer cylinder 10 and keep the cylinder body 21 of the damping cylinder 20 in the outer cylinder 10, so that the radial stability of the cylinder 21 in the outer cylinder 10 is higher, and the relative movement stability of the outer cylinder 10 and the shock-absorbing cylinder 20 and the cylinder 21 in the telescopic direction D can be further improved. Especially when the vehicle turns and the shock absorber is subjected to a curved, one-sided uneven thrust, the auxiliary sliding vane 34 and the O-ring 51 can provide a stabilizing force opposite to the uneven thrust to counteract the uneven thrust, Reduce the wear and damage of the axial sliding bearings 31, 32, 33 due to frequent uneven thrust, thereby prolonging the service life of the shock absorber.

In the embodiment, the auxiliary sliding piece 34 and the two axial sliding bearings 31, 32 that clamp it are located near the upper end of the outer cylinder 10, but not limited to this, the auxiliary sliding piece 34 and the two shafts that clamp it The sliding bearings 31 , 32 can also be provided near the lower end of the outer cylinder 10 , or any other position between the upper and lower ends, so as to provide a stabilizing force for different positions of the cylinder body 21 of the damping cylinder 20 .

The auxiliary sliding vane 34 and the two axial sliding bearings 31 , 32 sandwiching it constitute an axial lubrication assembly 30 . In the embodiment, an axial lubrication component 30 is arranged between the outer cylinder 10 and the cylinder body 21 . Two axial lubricating components 30 may also be arranged between the outer cylinder 10 and the cylinder body 21 to provide a higher stabilizing force for the cylinder body 21 of the shock absorber cylinder 20 .

In the embodiment, the axial length of the two axial sliding bearings that sandwich the auxiliary slide 34 L1 and L2 are the same. The axial length L3 of the auxiliary sliding vane 34 is the same as the axial lengths L1 and L2 of the axial sliding bearing. Or the axial length L3 of the auxiliary sliding vane 34 is larger or smaller than the axial lengths L1 and L2 of the axial sliding bearing.

10: outer cylinder

21: Cylinder

22: Piston rod

23: Working Piston

24: The first ring groove

25: The second ring groove

30: Axial Lubrication Assembly

31: Axial sliding bearing

32: Axial sliding bearing

33: Axial sliding bearing

34: Auxiliary Slider

51: O-ring

52: Dust-proof oil seal

D: stretch direction

Claims (6)

A structural improvement of a shock absorber for vehicles, comprising an outer cylinder and a shock absorber of the shock absorber; the shock absorber includes a barrel and a piston rod; the barrel has an outer surface facing the outer barrel. An inner surface is coaxially sleeved in the outer cylinder, the piston rod is fixed to the lower end of the outer cylinder, and the other end of the piston rod penetrates into the cylinder; the cylinder also includes a distribution configuration for oil and gas; it is characterized in that: The outer cylinder and the shock-absorbing cylinder include at least three axial sliding bearings and an auxiliary sliding vane; The three axial sliding bearings and the auxiliary sliding vanes are located between the inner surface of the outer cylinder and the outer surface of the cylinder body, and are fixed to the inner surface of the outer cylinder; The auxiliary sliding plate is sandwiched by two of the three axial sliding bearings on both sides of a telescopic direction of the shock absorber. The structural improvement of the shock absorber for vehicles according to claim 1, wherein the three axial sliding bearings are selected from self-lubricating bearings. The structural improvement of the shock absorber for a vehicle according to claim 1, wherein the outer cylinder and the shock absorbing cylinder further comprise an O-ring and a dust-proof oil seal; the O-ring and the dust-proof oil seal are respectively limited to the outer casing A first ring groove and a second ring groove on the top of the barrel are tightly sleeved on the outer surface of the barrel. The structural improvement of the vehicle shock absorber according to claim 1, wherein the auxiliary sliding vane and the two axial sliding bearings sandwiching it form an axial lubrication component; a Above this axial lubrication assembly. The structural improvement of the shock absorber for a vehicle according to claim 1, wherein the axial lengths of the two axial sliding bearings sandwiching the auxiliary sliding vane are the same; the axial length of the auxiliary sliding vane is the same as that of the axial sliding The axial lengths of the bearings are the same. The structural improvement of the shock absorber for a vehicle according to claim 1, wherein the auxiliary slider is sandwiched The axial lengths of the two axial sliding bearings of the sheet are the same; the axial length L3 of the auxiliary sliding sheet 34 is larger or smaller than the axial lengths L1 and L2 of the axial sliding bearing.

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