CN218408292U

CN218408292U - Novel structure hydraulic buffer shock absorber

Info

Publication number: CN218408292U
Application number: CN202222657257.7U
Authority: CN
Inventors: 任海; 安学成; 任宪奇
Original assignee: Yangzhou Focus Shock Absorber Co ltd
Current assignee: Yangzhou Focus Shock Absorber Co ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-01-31
Anticipated expiration: 2032-10-10

Abstract

The application provides a novel structure hydraulic cushion bumper shock absorber relates to the bumper shock absorber field. This novel structure hydraulic buffer bumper shock absorber, including piston rod and cylinder body, the surface of piston rod is provided with hydraulic shock absorption portion, buffer piston body and spacing ring are installed to hydraulic shock absorption portion's both ends counterpoint. This novel structure hydraulic buffer bumper shock absorber, through changing the buffering piston body into the plastics material, the mode that the bumper shock absorber buffering piston adopted powder metallurgy material in the past has been replaced, the buffering piston body that adopts the plastics material can play the effect of blotter, and can restrict the home range of buffering piston ring again, utilize the pressure equipment spacing ring, assemble the buffering piston ring, the installation to buffer structure can be accomplished to the assembly buffering piston, the part quantity has been reduced, the part cost has been saved, "the spacing ring" of below, the pressure equipment targets in place once by the machine, the buffering piston of top plastics material can be directly manual assembly targets in place, and the production efficiency is improved.

Description

Novel structure hydraulic buffer shock absorber

Technical Field

The application relates to the technical field of shock absorbers, in particular to a hydraulic buffering shock absorber with a novel structure.

Background

In the driving process of an automobile, in order to quickly attenuate the vibration of a frame and a body of the automobile so as to improve the smoothness and comfort of the driving of the automobile, a shock absorber is generally installed on an automobile suspension system. In the daily driving process, the automobile is matched with proper shock absorbers according to different road conditions, so that the driving comfort can be greatly improved, and the service life of the shock absorbers is effectively prolonged. When the automobile runs in bad road conditions in daily life, the stroke of the shock absorber can often run to the top point, rigid contact is likely to be generated between the piston inside the shock absorber and the outer cylinder, the oil drainage type hydraulic buffer shock absorber can effectively avoid the rigid contact, the damage to the shock absorber is reduced, and the service life of the shock absorber is effectively prolonged.

The existing buffering piston structure for the hydraulic buffering shock absorber needs a piston rod to process 2 clamp spring grooves, assemble the clamp spring 1, sequentially assemble the buffering piston I, the buffering piston ring and the buffering piston II, assemble the clamp spring 2, and assemble a buffering cushion from the upper end, so that the process is complex, and the equipment cost is increased.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the not enough of prior art, this application provides a novel structure hydraulic cushion bumper shock absorber, has solved the problem that mentions in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the present application is implemented by the following technical solutions: the utility model provides a novel structure hydraulic pressure buffering bumper shock absorber, includes piston rod and cylinder body, the surface of piston rod is provided with hydraulic damping portion, buffer piston body and spacing ring are installed to the both ends counterpoint of hydraulic damping portion, buffer piston body is including the equidistant lug that set up of cover joint ring and multiunit integration, the mounting groove with hydraulic damping portion joint is seted up to the inside counterpoint of cover joint ring, the buffering piston ring has been cup jointed to the surface of buffer piston body.

Through adopting above-mentioned technical scheme, can utilize the pressure equipment spacing ring, assembly buffering piston can accomplish the installation to buffer structure, has saved the step of pounding the jump ring in the bumper shock absorber in the past, great improvement production efficiency.

Preferably, the lug is nested with the buffering piston ring and clamped with the limiting ring.

Through adopting above-mentioned technical scheme, can stabilize the combination with spacing ring and buffering piston body.

Preferably, the bottom of the buffering piston ring is provided with an opening.

By adopting the technical scheme, the buffer piston ring and the convex block at the outer end of the buffer piston ring can be conveniently nested and assembled by the arrangement of the opening.

Preferably, the piston rod is located in an inner cavity of the cylinder body, an oil storage cylinder is arranged on one side of the piston rod, a working cylinder is fixedly mounted on one side of the oil storage cylinder, and a connecting plate is arranged below the piston rod.

By adopting the technical scheme, the oil can be collected by utilizing the oil storage cylinder.

Preferably, one end of the oil storage cylinder is fixedly provided with an oil seal, one side of the oil seal is provided with a gland, and the other side of the oil storage cylinder is fixedly provided with a guider.

By adopting the technical scheme, the sealing performance of the oil storage cylinder can be improved by utilizing the oil seal, oil leakage is avoided, and the oil storage cylinder can be sealed by utilizing the gland.

Preferably, one end of the piston rod is provided with a piston valve, a spring tray and a compression valve which are connected with the cylinder body for limiting.

Through adopting above-mentioned technical scheme, the shock attenuation suspension spring upper end acts on the vehicle body connecting plate, and the lower extreme acts on spring tray, and on the spring tray was applied to completely to shock attenuation suspension spring's effort, spring tray need bear shock attenuation suspension spring reciprocating motion's load, and piston valve and compression valve formed the damping force that the suspension received compression motion to the saving of oil.

Preferably, the other end of the piston rod is communicated with the opening end of the cylinder body, a reducing area is arranged in one end of the cylinder body, and a reducing transition area is arranged on one side of the reducing area.

By adopting the technical scheme, the piston rod can be stably connected out through the reducing transition area and the reducing area, and the cylinder body can be sealed and the piston rod can be guided by matching the oil seal at the reducing transition area and the guider.

Preferably, tapered grooves are uniformly formed in the surface of the inner wall of the reducing transition region.

Through adopting above-mentioned technical scheme, the bell jar is close to its effective flow area of director end and is littleer, and along with the buffer piston ring moves upwards, its effective flow area through the bell jar is littleer, and the resistance that fluid produced is big more, and the buffering effect is more obvious.

(III) advantageous effects

The application provides a novel structure hydraulic cushion bumper shock absorber. Has the following beneficial effects:

1. this novel structure hydraulic buffer bumper shock absorber through changing the buffering piston body into the plastics material, has replaced the mode that the bumper shock absorber buffering piston adopted powder metallurgy material in the past, and the buffering piston body that adopts the plastics material can play the effect of blotter, can restrict the home range of buffering piston ring moreover again.

2. This novel structure hydraulic buffer bumper shock absorber utilizes the pressure equipment spacing ring, assembles the buffering piston ring, and the installation to buffer structure can be accomplished to the assembly buffering piston, has reduced part quantity, has saved the part cost, "spacing ring" of below targets in place by the pressure equipment of machine, and the buffering piston of top plastics material can directly manual assembly target in place, and convenient operation saves operating time, has improved production efficiency.

3. By adjusting the reducing length and the shape of the working cylinder, the requirements of the shock absorber of almost all buffer strokes and force values can be met, the buffer pressure is provided by the shock absorber oil, the loss of parts in the shock absorber is small, and the service life of the shock absorber is obviously prolonged; the hydraulic buffer force can be stably transited through the hydraulic ring, so that the damping performance and the comfort level are improved; the stroke of the shock absorber is not occupied.

Drawings

FIG. 1 is a front view of a structural cross-section of the present application;

FIG. 2 is a cross-sectional view of the cylinder end of the present application;

FIG. 3 is a sectional view of the piston rod and the damping piston body of the present application;

FIG. 4 is a schematic perspective view of a damping piston body according to the present application;

FIG. 5 is an enlarged view of a portion of the structure of FIG. 3;

FIG. 6 is a front view of a stop collar of the present application;

fig. 7 is a front view of the present application of a cushioning piston ring.

In the figure: 1. a piston rod; 2. a gland; 3. oil sealing; 4. a guide; 5. a spring tray; 6. an oil storage cylinder; 7. a working cylinder; 8. a cushion piston body; 9. a buffer piston ring; 10. a limiting ring; 11. a connecting plate; 12. a piston valve; 13. a compression valve; 14. a cylinder body; 15. reducing the diameter of the zone; 16. a tapered groove; 17. reducing the diameter of the transition zone; 18. a bump; 19. mounting grooves; 20. a hydraulic damping part; 21. and opening the ring opening.

Detailed Description

The present application is explained in further detail below with reference to the figures and examples.

Referring to fig. 1, fig. 4 and fig. 5, the embodiment of the present application provides a hydraulic buffer shock absorber with a novel structure, including a piston rod 1 and a cylinder 14, the surface of the piston rod 1 is provided with a hydraulic shock absorption portion 20, a buffer piston body 8 and a limit ring 10 are installed at opposite positions of two ends of the hydraulic shock absorption portion 20, the buffer piston body 8 includes a sleeve ring and equidistant bumps 18 integrally arranged in multiple groups, a mounting groove 19 clamped with the hydraulic shock absorption portion 20 is provided at the inner part of the sleeve ring in opposite positions, a buffer piston ring 9 is sleeved on the outer surface of the buffer piston body 8, the material of the upper buffer piston body 8 is plastic, the material of the lower buffer piston body 8 is 10# steel, when the hydraulic buffer shock absorber is used, through the hydraulic shock absorption portion 20 on the surface of the piston rod 1, stable positioning and mounting can be performed on the buffer piston body 8 and the buffer piston ring 9, the hydraulic buffer shock absorber is used through the cooperation of the buffer piston body 8 and the buffer piston ring 9, when the piston rod 1 is telescopic, the cylinder 14 is used, hydraulic buffer fluid is used to provide stable hydraulic buffer shock absorption protection for the telescopic of the piston rod 1.

Referring to fig. 4 and 5, in one aspect of the present embodiment, the projection 18 is nested with the cushion piston ring 9 and is fitted to the retainer ring 10, and the cushion piston ring 9 is fitted to the retainer ring 10 by the projection 18.

Referring to fig. 7, in one aspect of the present embodiment, the bottom of the damping piston ring 9 is opened with an opening 21, and the damping piston ring 9 is conveniently assembled between the damping piston body 8 and the retainer ring 10 through the opening 21 at the bottom of the damping piston ring 9.

Referring to fig. 1, in one aspect of the present embodiment, a piston rod 1 is located in an inner cavity of a cylinder 14, one side of the piston rod 1 is provided with an oil storage cylinder 6, one side of the oil storage cylinder 6 is fixedly provided with a working cylinder 7, a connecting plate 11 is arranged below the piston rod 1, the oil storage cylinder 6 is used for storing oil for compressing the piston rod 1, when the volume of a lower chamber of the piston is reduced, the oil pressure is increased, the oil flows to a chamber (an upper chamber) above the piston through a circulation valve, the upper chamber is occupied by the piston rod 1, therefore, the increased volume of the upper chamber is smaller than the reduced volume of the lower chamber, and a part of the oil pushes away a compression valve 13 and flows back to the oil storage cylinder 6.

Referring to fig. 1, in one aspect of the present embodiment, an oil seal 3 is fixedly mounted at one end of an oil storage cylinder 6, a gland 2 is disposed at one side of the oil seal 3, a guider 4 is fixedly mounted at the other side of the oil storage cylinder 6, the oil storage cylinder 6 is sealed by the gland 2, and the oil seal 3 is located between the gland 2 and an oil inlet of the oil storage cylinder 6, so that the gland 2 and the oil storage cylinder 6 are more attached to each other, and the sealing performance of the oil storage cylinder 6 is improved.

Referring to fig. 1, in an aspect of the present embodiment, one end of a piston rod 1 is provided with a piston valve 12, a spring tray 5 and a compression valve 13, which are engaged with and limited by a cylinder 14, the other end of the piston rod 1 penetrates through an open end of the cylinder 14, a reducing area 15 is provided inside one end of the cylinder 14, one side of the reducing area 15 is provided with a reducing transition area 17, stable assembly of the piston rod 1 and the cylinder 14 can be completed by sealing and fixing the piston valve 12 and the spring tray 5 outside the piston rod 1 and the lower end of the cylinder 14, and the cylinder 14, the hydraulic buffer mechanism at the other end of the hydraulic buffer unit 20 can be assembled by installing an oil seal 3, a gland 2 and a guide 4 at the opening of the cylinder 14.

Referring to fig. 2, in an aspect of this embodiment, the bell jar 16 has evenly been seted up on the surface of undergauge transition region 17 inner wall, hydraulic buffer bumper shock absorber cooperatees through the buffer structure assembly with on the piston rod 1 after adopting the undergauge at inside working cylinder 7 top, when the piston ring moves to working cylinder 7 undergauge department, along with buffering piston ring 9 upwards moves, fluid between piston ring and the director 4 can form huge reverse direction effort to the piston ring when the extrusion, fluid passes through bell jar 16 and slowly drains oil simultaneously, hydraulic buffer power can smooth transition.

All consumer in this scheme all supplies power through external power source.

The working principle is as follows: when the hydraulic buffer device is used, the buffer piston body 8 is stably nested and clamped in the hydraulic buffer part 20 on the surface of the piston rod 1, the buffer piston body 8 and the lug 18 on the surface of the buffer piston body 8 can be nested through the arrangement of the ring opening 21 at the bottom of the limiting ring 10, the upper end of the working cylinder 7 is reduced in diameter at first, then a plurality of conical grooves 16 are machined at the diameter-reduced end along the circumference, and the effective flow area of the end, which is closer to the guider 4, of the groove is smaller. When the shock absorber is compressed, the piston rod 1 in the shock absorber moves downwards at the moment, the volume of the lower chamber of the piston is reduced, the oil pressure is increased, the oil flows through the circulating valve to flow to the chamber (upper chamber) above the piston, the upper chamber occupies a part of space by the piston rod 1, so that the increased volume of the upper chamber is smaller than the reduced volume of the lower chamber, and a part of the oil pushes away the compression valve 13 and flows back to the oil storage cylinder 6.

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

Claims

1. The utility model provides a novel structure hydraulic cushion bumper shock absorber, includes piston rod (1) and cylinder body (14), its characterized in that: the surface of piston rod (1) is provided with hydraulic shock attenuation portion (20), buffer piston body (8) and spacing ring (10) are installed to the both ends counterpoint of hydraulic shock attenuation portion (20), equidistant lug (18) that buffer piston body (8) set up including set collar and multiunit integration, set collar inside counterpoint offer with hydraulic shock attenuation portion (20) looks joint mounting groove (19), buffer piston ring (9) have been cup jointed to the surface of buffer piston body (8).

2. The hydraulic buffer shock absorber with the novel structure as claimed in claim 1, is characterized in that: the lug (18) is nested with the buffering piston ring (9) and clamped with the limiting ring (10).

3. The hydraulic buffer shock absorber with the novel structure as claimed in claim 1, is characterized in that: the bottom of the buffering piston ring (9) is provided with an opening (21).

4. The hydraulic buffer shock absorber with the novel structure as claimed in claim 1, is characterized in that: the piston rod (1) is located in an inner cavity of the cylinder body (14), an oil storage cylinder (6) is arranged on one side of the piston rod (1), a working cylinder (7) is fixedly mounted on one side of the oil storage cylinder (6), and a connecting plate (11) is arranged below the piston rod (1).

5. The hydraulic buffer shock absorber with the novel structure as claimed in claim 4, is characterized in that: one end fixed mounting of oil reservoir (6) has oil blanket (3), one side of oil blanket (3) is provided with gland (2), the opposite side fixed mounting of oil reservoir (6) has director (4).

6. The hydraulic buffer shock absorber with the novel structure as claimed in claim 1, is characterized in that: one end of the piston rod (1) is provided with a piston valve (12), a spring tray (5) and a compression valve (13) which are connected with the cylinder body (14) for limiting.

7. The hydraulic buffer shock absorber with the novel structure as claimed in claim 1, is characterized in that: the other end of the piston rod (1) is communicated with the opening end of the cylinder body (14), a reducing area (15) is arranged in one end of the cylinder body (14), and a reducing transition area (17) is arranged on one side of the reducing area (15).

8. The hydraulic buffer shock absorber with a novel structure as claimed in claim 7, wherein: tapered grooves (16) are uniformly formed in the surface of the inner wall of the reducing transition region (17).