CN210565966U - Inlaid hydraulic buffer vibration-damper - Google Patents

Abstract

The utility model discloses an inserted hydraulic cushion shock absorber, including working cylinder and piston rod, be full of hydraulic oil in the working cylinder, the piston rod is located and carries out axial round trip movement in the working cylinder, a serial communication port, the embedded buffer tube that is equipped with of working cylinder, the relative buffer tube of piston rod slides and sets up, the piston rod interlude is equipped with the buffer, buffer external diameter and buffer tube internal diameter clearance fit, when the buffer gets into the buffer tube, the buffer tube inner wall is hugged closely to the buffer and slides. In a normal driving state, the piston rod drives the piston to move back and forth in the cylinder body, and the damping oil in the cylinder body continuously flows back and forth to play a damping role; when the piston rod is stretched to the limit position in the limit driving state, the buffer enters the buffer tube, the smaller the gap between the buffer and the buffer tube is, the larger the generated pressure is, and the generated damping force absorbs vibration to play a role in buffering.

Description

Inlaid hydraulic buffer vibration-damper

Technical Field

The utility model relates to a shock absorber, in particular to inserted hydraulic cushion shock absorber.

Background

When the conventional automobile shock absorber is used, if an automobile runs on bumpy or hollow poor road conditions, the shock absorber has large amplitude relative to a flat road shock absorber, and the shock absorber is easy to stretch to a stretching limit position, so that the internal guide structure of the shock absorber and the internal limit part of the piston rod can generate rigid impact, and people can hear abnormal sound generated by impact in the running process of the automobile. The internal guide structure and the piston rod are internally limited and collide for a long time, so that internal parts of the shock absorber are easily damaged, and the shock absorber is further caused to lose efficacy. There is also a design of arranging a buffer spring in the shock absorber, but the spring is a linear force value, the elastic force is relatively small, and the buffer spring cannot play a significant role in the buffer process.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an inserted hydraulic cushion shock absorber increases hydraulic cushion function, can guarantee to pass through steadily jolting, hollow road surface, can not produce any abnormal sound that the striking sent, guarantees the travelling comfort of driving.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: inserted hydraulic cushion shock absorber, including working cylinder and piston rod, be full of hydraulic oil in the working cylinder, the piston rod is located and carries out axial round trip movement in the working cylinder, its characterized in that, the embedded buffer tube that is equipped with of working cylinder, the relative buffer tube of piston rod slides and sets up, the piston rod interlude is equipped with the buffer, buffer external diameter and buffer tube internal diameter clearance fit, when the buffer gets into the buffer tube, the buffer tube inner wall is hugged closely to the buffer and slides.

The orifice of the buffer tube is enlarged outwardly.

The buffer is made of powder metallurgy materials.

And a buffer ring is arranged on the front side of the buffer.

The piston rod is provided with a clamping groove, the clamping groove is provided with a clamp spring, one end of the buffer is fixed by the clamp spring, and the other end of the buffer is fixed through a limiting block.

The utility model has the advantages that: in a normal driving state, the piston rod drives the piston to move back and forth in the cylinder body, and the damping oil in the cylinder body continuously flows back and forth to play a damping role; when the piston rod is stretched to the limit position in the limit driving state, the buffer enters the buffer tube, the smaller the gap between the buffer and the buffer tube is, the larger the generated pressure is, and the generated damping force absorbs vibration to play a role in buffering.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a partial enlarged view of the present invention.

Detailed Description

Referring to the attached drawings, the embedded hydraulic buffer shock absorber comprises a working cylinder 1 and a piston rod 2, hydraulic oil is filled in the working cylinder, the piston rod 2 is located in the working cylinder 1 and moves back and forth in the axial direction, a piston 3 is arranged at the tail end of the piston rod 2, and the piston 3 is driven by the piston rod 2 to move back and forth, so that the hydraulic oil in the working cylinder flows back and forth, and the shock absorption effect is achieved.

The embedded buffer tube 4 that is equipped with of working cylinder 1, the relative buffer tube 4 of piston rod 2 slides and sets up, and the buffer tube 4 interference is fixed to be located in the working cylinder 1 promptly, 2 interlude of piston rod are equipped with buffer 5, 5 external diameters of buffer and 4 internal diameter clearance fits of buffer tube, and when 2 stretching of piston rod, hydraulic oil can flow in this clearance from the buffer, works as when buffer 5 gets into buffer tube 4, buffer 5 hugs closely 4 inner walls of buffer tube and slides, and the clearance is less, and the cavity between buffer 5 and the director 6 produces pressure more big, and then increases the cushion effect.

In order to allow the buffer to enter the buffer tube smoothly, the orifice 41 of the buffer tube 4 is enlarged outwards and serves as a guide.

The buffer 5 is made of powder metallurgy materials.

The front side of the buffer 5 is provided with a buffer ring 7, and in the limit driving state, once the buffer enters the buffer tube and continues to move to the front end, the buffer ring can play a role of protection at the front side of the buffer in order to prevent the buffer from directly impacting a guider positioned at the front side of the working cylinder.

Be equipped with draw-in groove 21 on the piston rod 2, be equipped with jump ring 8 on the draw-in groove 21, 5 one end of buffer is fixed by jump ring 8, and 5 other ends of buffer pass through stopper 9 to be fixed, can prevent that the buffer from removing.

Claims (5)

1. Inserted hydraulic cushion shock absorber, including working cylinder, piston and piston rod, be full of hydraulic oil in the working cylinder, the piston rod rear end is located to the piston, piston rod and piston are located and carry out axial round trip movement in the working cylinder, its characterized in that, the front side inlays in the working cylinder and is equipped with the buffer tube, the relative buffer tube of piston rod slides and sets up, the piston rod interlude is equipped with the buffer, buffer external diameter and buffer tube internal diameter clearance fit, when the buffer got into the buffer tube, the buffer tube inner wall was hugged closely to the buffer and slides.

2. The hydraulic mosaic vibration damper of claim 1, wherein said buffer tube orifices are outwardly enlarged.

3. The mosaic hydraulic cushion damper of claim 1, wherein said damper is a powder metallurgy material.

4. The mosaic hydraulic cushion damper according to claim 1, wherein said damper front side is provided with a cushion ring.

5. The embedded hydraulic cushion shock absorber of claim 1, wherein the piston rod is provided with a clamping groove, the clamping groove is provided with a clamp spring, one end of the cushion is fixed by the clamp spring, and the other end of the cushion is fixed by a limiting block.

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