CN214092829U - High leakproofness bumper shock absorber for car - Google Patents

Abstract

The utility model discloses a high-tightness automobile shock absorber, which comprises a shell, a buffer column, a shock absorbing cylinder, an upper spring seat, a lower spring seat, a shock absorbing spring, a dustproof ring, an oil seal, a Y-type polyurethane sealing ring, a St sealing ring, an upper guide sleeve, a lower guide sleeve and a shaft retainer ring, wherein the dustproof ring, the St sealing ring, the oil seal and the Y-type polyurethane sealing ring are sequentially arranged at the position where the buffer column extends out of the shock absorbing cylinder and is contacted with the shock absorbing cylinder, and the buffer column, the shock absorbing cylinder, the upper guide sleeve and the lower guide sleeve are coated with lubricating oil before assembly, the design of the four-type sealing ring can prevent all dust and impurity particles from entering the shock absorbing cylinder, ensure the cleanness in the shock absorbing cylinder, ensure the smooth operation of the buffer column, and coat the lubricating oil before assembly of the buffer column, the shock absorbing cylinder, the upper guide sleeve and the lower guide sleeve, the resistance of the buffer column running in the shock absorption cylinder can be reduced, and the friction of the buffer column on the shock absorption cylinder is reduced.

Description

High leakproofness bumper shock absorber for car

Technical Field

The utility model relates to a bumper shock absorber technical field for the car, in particular to bumper shock absorber for high leakproofness car.

Background

The shock Absorber (Absorber), the shock Absorber is mainly used to restrain the shock and the impact from the road surface when the spring absorbs the shock and rebounds. When the shock absorber passes through the uneven road surface, although the shock absorbing spring can filter the shock of the road surface, the spring can still reciprocate, and the shock absorber is used for inhibiting the spring from jumping. The shock absorber is too soft, the vehicle body jumps up and down, and the shock absorber is too hard, so that too much resistance is brought, and the normal work of the spring is hindered. In a retrofit process for a suspension system, a stiff damper is used in conjunction with a stiff spring, which stiffness is related to vehicle weight, so that heavier vehicles typically use stiffer dampers. The device connected with the vibration inducing crankshaft is used for resisting the torsional vibration of the crankshaft (namely the phenomenon that the crankshaft is twisted by the impact force of cylinder ignition).

The shock absorber is widely applied to an automobile suspension system, can play a role in shock absorption in compression and extension strokes, can effectively slow down jolt caused by the fact that an automobile runs to an uneven road surface, and improves the riding comfort of the automobile. The car can take dirt or foreign particle at the operation in-process, if these foreign particle and dust in once getting into the shock absorber tube in the bumper shock absorber, can cause the unable early shock absorber tube of cushion column in smoothly sliding, perhaps the increase of friction of cushion column and shock absorber tube inner wall makes the shock attenuation effect of bumper shock absorber descend or become invalid.

The utility model provides a high leakproofness is bumper shock absorber for car solves above-mentioned technical problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high leakproofness is bumper shock absorber for car solves above-mentioned technical problem.

The utility model provides a high leakproofness bumper shock absorber for car which characterized in that: the shock absorber comprises a shell, a buffer column, a shock absorbing cylinder, an upper spring seat, a lower spring seat, a shock absorbing spring, a dustproof ring, an oil seal, a Y-shaped polyurethane sealing ring, a St sealing ring, an upper guide sleeve, a lower guide sleeve and an axial check ring, wherein the shock absorbing cylinder is fixed in an inner cavity of the shell in a welding mode, one end of the bottom of the shell is provided with the lower spring seat, the buffer column is 1/3 in length and is inserted in an inner cavity of the shock absorbing cylinder, the end, away from the shock absorbing cylinder, of the buffer column is provided with the upper spring seat, the shock absorbing spring is fixedly installed through the upper spring seat and the lower spring seat, the buffer column is inserted in one end of the inner cavity of the shock absorbing cylinder and is provided with the lower guide sleeve, the axial check ring and the upper guide sleeve are arranged between the lower guide sleeve and the upper guide sleeve, the position, extending from the shock absorbing cylinder and contacting with the shock absorbing cylinder, of the buffer column is sequentially provided with the dustproof ring, the St sealing ring and the St sealing ring from top to bottom, The oil seal and Y type polyurethane sealing washer, buffer column, damper cylinder, go up uide bushing and lower uide bushing are paintd lubricating oil and are handled before the equipment.

Furthermore, the buffer column, the damping cylinder, the upper guide sleeve and the lower guide sleeve need to be subjected to dust removal treatment and lubricating oil smearing treatment before assembly.

Further, the rigidity of the damping spring is 53.6 kg/cm.

Further, the effective stroke of the buffer column is 120-126 mm.

Compared with the prior art, the utility model has the advantages that: through the design that the dustproof ring, the St sealing ring, the oil seal and the Y-type polyurethane sealing ring are sequentially arranged at the position, extending out of the shock absorption cylinder, of the buffer column and contacted with the shock absorption cylinder, and the buffer column, the shock absorption cylinder, the upper guide sleeve and the lower guide sleeve are coated with lubricating oil before assembly, and the design of the four layers of sealing rings can prevent all dust and impurity particles from entering the shock absorption cylinder, ensure the cleanness of the shock absorption cylinder and the smooth operation of the buffer column, and in addition, the design that the buffer column, the shock absorption cylinder, the upper guide sleeve and the lower guide sleeve are coated with the lubricating oil before assembly can reduce the running resistance of the buffer column in the shock absorption cylinder, reduce the friction of the buffer column on the shock absorption cylinder, prolong the service life of the shock absorption cylinder, avoid the loss of the lubricating oil due to the design of the oil seal, further ensure the smooth running of the buffer column in the shock absorption cylinder, reduce the friction of the buffer column on the shock absorption cylinder, the service life of the device is prolonged.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

Fig. 1 is a schematic structural view of a high-sealability shock absorber for an automobile according to an embodiment of the present invention;

in the drawings: 1. a housing; 2. a buffer column; 3. a damper cylinder; 4. an upper spring seat; 5. a lower spring seat; 6. a damping spring; 7. a dust ring; 8. oil sealing; 9. a Y-type polyurethane sealing ring; 10. a stet seal ring; 11. an upper guide sleeve; 12. a lower guide sleeve; 13. a retainer ring for a shaft.

Detailed Description

In view of the deficiencies in the prior art, the technical solution of the present invention can be provided through long-term research and a large amount of practice. The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention.

Fig. 1 is a schematic structural view of a high-sealing automobile shock absorber provided in an embodiment of the present invention, as shown in fig. 1, a high-sealing automobile shock absorber characterized in that: including shell 1, cushion column 2, surge drum 3, go up spring holder 4, spring holder 5, damping spring 6, dust ring 7, oil blanket 8, Y type polyurethane sealing washer 9, stet sealing washer 10, go up uide bushing 11, uide bushing 12 and for axle retaining ring 13 down, cushion drum 3 fixes at shell 1 inner chamber through the welded mode, shell 1's bottom one end is equipped with down spring holder 5, cushion column 2 has 1/3 length to peg graft at the 3 inner chambers of surge drum, cushion column 2 keeps away from the one end of surge drum 3 and is equipped with spring holder 4 down, damping spring 6 installs fixedly through last spring holder 4 and lower spring holder 5, the one end of cushion column 2 pegging graft at the 3 inner chambers of surge drum is equipped with uide bushing 12, for axle retaining ring 13 and last uide bushing 11 down, be equipped with for axle retaining ring 13 between uide bushing 12 and the last uide bushing 11 down, cushion column 2 stretches out from cushion drum 3 and down be equipped with in proper order with the position that contacts with the surge drum 3 from last retaining ring 12, cushion column 3 down A dust ring 7, a St sealing ring 10, an oil seal 8 and a Y-type polyurethane sealing ring 9.

Preferably, the buffer posts 2, the damper cylinder 3, the upper guide sleeve 11 and the lower guide sleeve 12 are subjected to dust removal treatment before assembly.

Preferably, the stiffness of the damper spring 6 is 53.6 kg/cm.

Preferably, the effective stroke of the buffer column 2 is 120-126 mm.

The beneficial effects of the utility model include: through the design that the dustproof ring, the St sealing ring, the oil seal and the Y-type polyurethane sealing ring are sequentially arranged at the position, extending out of the shock absorption cylinder, of the buffer column and contacted with the shock absorption cylinder, and the buffer column, the shock absorption cylinder, the upper guide sleeve and the lower guide sleeve are coated with lubricating oil before assembly, and the design of the four layers of sealing rings can prevent all dust and impurity particles from entering the shock absorption cylinder, ensure the cleanness of the shock absorption cylinder and the smooth operation of the buffer column, and in addition, the design that the buffer column, the shock absorption cylinder, the upper guide sleeve and the lower guide sleeve are coated with the lubricating oil before assembly can reduce the running resistance of the buffer column in the shock absorption cylinder, reduce the friction of the buffer column on the shock absorption cylinder, prolong the service life of the shock absorption cylinder, avoid the loss of the lubricating oil due to the design of the oil seal, further ensure the smooth running of the buffer column in the shock absorption cylinder, reduce the friction of the buffer column on the shock absorption cylinder, the service life of the device is prolonged.

The utility model provides a pair of high leakproofness is bumper shock absorber for car, it should be understood, above-mentioned embodiment is only for the explanation the utility model discloses a technical conception and characteristics, its aim at let the personage of familiar with this technique can understand the utility model discloses a content and according to with the implementation, can not restrict with this the utility model discloses a protection scope. All simple changes and replacements made by the contents of the utility model are included in the protection scope of the utility model.

Claims (4)

1. The utility model provides a high leakproofness bumper shock absorber for car which characterized in that: the shock absorber comprises a shell, a buffer column, a shock absorbing cylinder, an upper spring seat, a lower spring seat, a shock absorbing spring, a dustproof ring, an oil seal, a Y-shaped polyurethane sealing ring, a St sealing ring, an upper guide sleeve, a lower guide sleeve and an axial check ring, wherein the shock absorbing cylinder is fixed in an inner cavity of the shell in a welding mode, one end of the bottom of the shell is provided with the lower spring seat, the buffer column is 1/3 in length and is inserted in an inner cavity of the shock absorbing cylinder, the end, away from the shock absorbing cylinder, of the buffer column is provided with the upper spring seat, the shock absorbing spring is fixedly installed through the upper spring seat and the lower spring seat, the buffer column is inserted in one end of the inner cavity of the shock absorbing cylinder and is provided with the lower guide sleeve, the axial check ring and the upper guide sleeve are arranged between the lower guide sleeve and the upper guide sleeve, the position, extending from the shock absorbing cylinder and contacting with the shock absorbing cylinder, of the buffer column is sequentially provided with the dustproof ring, the St sealing ring and the St sealing ring from top to bottom, Oil seal and Y type polyurethane sealing washer.

2. The damper for an automobile with high sealing performance according to claim 1, wherein: the buffer column, the damping cylinder, the upper guide sleeve and the lower guide sleeve are required to be subjected to dust removal treatment before assembly.

3. The damper for an automobile with high sealing performance according to claim 1, wherein: the rigidity of the damping spring is 53.6 kg/cm.

4. The damper for an automobile with high sealing performance according to claim 1, wherein: the effective stroke of the buffer column is 120-126 mm.

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