CN212080013U

CN212080013U - Drum-type bidirectional flexible shock absorber

Info

Publication number: CN212080013U
Application number: CN202020803481.0U
Authority: CN
Inventors: 倪涛
Original assignee: HANGZHOU KAISHENG SHOCK ABSORBER CO Ltd
Current assignee: HANGZHOU KAISHENG SHOCK ABSORBER CO Ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-12-04
Anticipated expiration: 2030-05-14

Abstract

The utility model relates to the technical field of shock absorbers, and discloses a cylinder type bidirectional flexible shock absorber, which comprises a piston rod, wherein a steel bead strip is arranged on the outer wall of the middle part of the piston rod, so that the sliding friction of the original piston rod is changed into rolling friction, the friction force borne by the piston rod is greatly reduced, the lower end of the piston rod is fixedly connected with a piston, the left end of the piston is provided with an extension valve, the right end of the piston is provided with a circulation valve, the outer wall of a working cylinder is fixedly connected with an oil storage cylinder, the outer wall of the upper part of the oil storage cylinder is provided with a chute, the upper end inside the chute is provided with a slider, one end of the slider, which is far away from the piston rod, is fixedly connected with a fixed column, and one end of the fixed column, which is far away from the slider, is fixedly connected with, the service life of the whole shock absorber is prolonged.

Description

Drum-type bidirectional flexible shock absorber

Technical Field

The utility model relates to a bumper shock absorber technical field specifically is a two-way flexible bumper shock absorber of cylinder.

Background

The shock Absorber (Absorber) is divided in the sense of the damping-producing material, mainly into two types, hydraulic and pneumatic, and also into a variable damping shock Absorber. The shock absorber is mainly used for inhibiting the shock when the spring absorbs the shock and rebounds and the impact from the road surface. 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).

When the two-way cylinder shock absorber was installed at present, dust cover section of thick bamboo opening down, silt got into easily between dust sleeve and the oil storage section of thick bamboo, debris such as silt can pile up on oil blanket department or piston rod, roll into the oil blanket during piston rod reciprocating motion in, and then cause oil blanket and piston rod to harm, and produce wearing and tearing easily among the piston rod back and forth movement process, influence its life.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a two-way flexible bumper shock absorber of cylinder possesses dustproof effectual and the little advantage of frictional resistance, has solved the problem of proposing among the above-mentioned background art.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a cylinder type bidirectional flexible shock absorber comprises a piston rod, wherein a rod cap is fixedly connected to the upper surface of the piston rod, a steel bead strip is arranged on the outer wall of the middle part of the piston rod, a fixed block is fixedly connected to the outer wall of the steel bead strip, an oil seal is fixedly connected to the lower end of the fixed block, a working cylinder is fixedly connected to the lower surface of the oil seal, a piston is fixedly connected to the lower end of the piston rod, an extension valve is arranged at the left end of the piston, a circulation valve is arranged at the right end of the piston, an oil storage cylinder is fixedly connected to the outer wall of the working cylinder, a fixed disc is fixedly connected to the outer wall of the middle part of the oil storage cylinder, a fixed ring is fixedly connected to the lower surface of the oil storage cylinder, a sliding groove is formed in the outer wall of, the one end fixedly connected with dust cover that the slider was kept away from to the fixed column, working barrel lower extreme left side fixedly connected with compression valve, working barrel right side fixedly connected with compensating valve.

Preferably, the piston is arranged in the working barrel, and the left end and the right end of the piston are attached to the inner wall of the working barrel.

Preferably, the sliding groove, the sliding block and the fixing column are mutually matched.

Preferably, the steel balls in the steel ball strip are uniformly arranged at equal intervals and are mutually attached.

(III) advantageous effects

Compared with the prior art, the utility model provides a two-way flexible bumper shock absorber of cylinder possesses following beneficial effect:

1. this two-way flexible bumper shock absorber of cylinder, the spout has been seted up on through oil storage section of thick bamboo upper portion outer wall, the slider has been placed to the inside upper end of spout, the one end that the slider is close to the piston rod is laminated with the spout inner wall mutually, the one end fixedly connected with fixed column of piston rod is kept away from to the slider, the structure of the one end fixedly connected with dust cover of slider is kept away from to the fixed column, make the piston rod device of whole bumper shock absorber can not contact the external air in the use, make the piston rod can not lead to whole device to cause the damage at the shock attenuation in-process because of exposing the material that is infected.

2. This two-way flexible shock absorber of cylinder is provided with the steel ball strip on the outer wall through the piston rod middle part, and the structure of the even equidistance arrangement of steel ball in the steel ball strip and laminating mutually for the sliding friction change of original piston rod is rolling friction, greatly reduced the frictional force that receives on the piston rod, makes the piston rod can be enough for a longer time.

Drawings

Fig. 1 is a schematic view of the cross-sectional plane structure of the present invention.

In the figure: the device comprises a piston rod 1, a rod cap 2, a steel bead strip 3, a fixed block 4, an oil seal 5, a working cylinder 6, a piston 7, an expansion valve 8, a flow valve 9, an oil storage cylinder 10, a fixed disc 11, a fixed ring 12, a sliding chute 13, a sliding block 14, a fixed column 15, a dust cover 16, a compression valve 17 and a compensation valve 18.

Detailed Description

The technical solutions 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, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, a cylinder type bidirectional flexible shock absorber comprises a piston rod 1, a rod cap 2 is fixedly connected to the upper surface of the piston rod 1, steel beads 3 are arranged on the outer wall of the middle part of the piston rod 1, steel beads in the steel beads 3 are uniformly arranged at equal intervals and mutually attached, so that the sliding friction of the piston rod 1 originally is changed into rolling friction, the friction force borne by the piston rod is greatly reduced, a fixed block 4 is fixedly connected to the outer wall of the steel beads 3, an oil seal 5 is fixedly connected to the lower end of the fixed block 4, a working cylinder 6 is fixedly connected to the lower surface of the oil seal 5, a piston 7 is fixedly connected to the lower end of the piston rod 1, the piston 7 is positioned inside the working cylinder 6, the left end and the right end of the piston 7 are attached to the inner wall of the working cylinder 6, an extension valve 8 is arranged at the left end of the piston 7, a circulation valve 9, fixed surface is connected with retainer plate 12 under oil storage cylinder 10, spout 13 has been seted up on the outer wall of oil storage cylinder 10 upper portion, slider 14 has been placed to the inside upper end of spout 13, slider 14 is close to piston rod 1's one end and the laminating of spout 13 inner wall mutually, slider 14 keeps away from piston rod 1's one end fixedly connected with fixed column 15, spout 13, slider 14 and fixed column 15 adaptation of each other, slider 14's one end fixedly connected with dust cover 16 is kept away from to fixed column 15, make the piston rod 1 device of whole bumper shock absorber can not contact the outside air in the use, make piston rod 1 can not lead to whole device to cause the damage in shock attenuation process because of exposing the material that is infected with the dust or is difficult to clear away outside, the life of whole bumper shock absorber has been increased, working cylinder 6 lower extreme left side fixedly connected.

When the shock absorber is used, during a compression stroke, the shock absorber is compressed, the piston 7 in the shock absorber moves downwards at the moment, the volume of the lower part of the piston 7 is reduced, the oil pressure is increased, oil flows to the upper part of the piston through the circulating valve 9, the increased volume of the upper part is smaller than the reduced volume of the lower part, a part of the oil pushes away the compression valve 17 and flows back to the oil storage cylinder 10, when the shock absorber is stretched, the piston 7 of the shock absorber moves upwards, the oil pressure of the upper part of the piston 7 is increased, the circulating valve 9 is closed, the oil on the upper part pushes away the stretching valve 8 and flows into the lower part, in the process, the sliding block 14 in the sliding groove 13 moves up and down along with the piston rod 1 in the sliding groove 13.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a two-way flexible bumper shock absorber of cylinder, includes piston rod (1), fixed surface is connected with pole cap (2) on piston rod (1), be provided with steel bead strip (3) on the outer wall of piston rod (1) middle part, fixedly connected with fixed block (4) on steel bead strip (3) outer wall, fixed block (4) lower extreme fixedly connected with oil blanket (5), oil blanket (5) lower surface fixedly connected with working barrel (6), piston rod (1) lower extreme fixedly connected with piston (7), piston (7) left end is provided with the valve of stretching (8), piston (7) right-hand member is provided with flow valve (9), working barrel (6) outer wall fixedly connected with oil storage barrel (10), its characterized in that: fixedly connected with fixed disk (11) on oil storage cylinder (10) middle part outer wall, fixedly connected with retainer plate (12) under oil storage cylinder (10), spout (13) have been seted up on oil storage cylinder (10) upper portion outer wall, slider (14) have been placed to spout (13) inside upper end, the one end that slider (14) are close to piston rod (1) is laminated with spout (13) inner wall mutually, the one end fixedly connected with fixed column (15) of piston rod (1) are kept away from in slider (14), the one end fixedly connected with dust cover (16) of slider (14) are kept away from in fixed column (15), working cylinder (6) lower extreme left side fixedly connected with compression valve (17), working cylinder (6) right side fixedly connected with compensating valve (18).

2. The telescopic bi-directional compliant shock absorber of claim 1, wherein: the piston (7) is arranged inside the working barrel (6), and the left end and the right end of the piston (7) are attached to the inner wall of the working barrel (6).

3. The telescopic bi-directional compliant shock absorber of claim 1, wherein: the sliding groove (13), the sliding block (14) and the fixing column (15) are mutually matched.

4. The telescopic bi-directional compliant shock absorber of claim 1, wherein: the steel balls in the steel ball strips (3) are uniformly arranged at equal intervals and are mutually attached.