CN202560923U

CN202560923U - Base of shock absorber

Info

Publication number: CN202560923U
Application number: CN2012202462035U
Authority: CN
Inventors: 潘成群
Original assignee: Ningbo Qunxing Powder Metallurgy Co Ltd
Current assignee: Ningbo Qunxing Powder Metallurgy Co Ltd
Priority date: 2012-05-29
Filing date: 2012-05-29
Publication date: 2012-11-28
Anticipated expiration: 2022-05-29

Abstract

A base of a shock absorber comprises a base body (1) which is sequentially provided with a first ring-shaped bulge (1.1), a second ring-shaped bulge (1.2) and a third ring-shaped bulge (1.3) from inside to outside, wherein the first ring-shaped bulge (1.1) and the second ring-shaped bulge (1.2) form a first ring-shaped groove (1.4); and at least four quadrate first through-holes (2) are uniformly arranged on the first ring-shaped groove (1.4) in the circumferential direction. The base of the shock absorber can enlarge a hydraulic oil flow.

Description

The vibration damper base

Technical field

The utility model relates to a kind of auto parts and components field, specifically relates to a kind of vibration damper base that is used for the automobile shockproof system.

Background technique

Automobile is through uneven road surface the time, though the shock-absorbing spring in the shockproof system can filter the vibrations on road surface, spring self also has to-and-fro motion, and vibration damper is used for suppressing the back and forth jump of this spring.The structure of vibration damper is that the piston rod that has piston inserts in the tube, is full of oil in the tube.Throttle orifice is arranged on the piston, make that the oil in two-part space that is separated by piston can complement each other.The working principle of vibration damper is when receiving vibrations relative movement to occur between vehicle frame and vehicle bridge or vehicle body and vehicle bridge; Piston in the vibration damper moves up and down; Fluid in the vibration damper chamber just flows in another chamber from a chamber through different holes times without number; The intermolecular interior friction of friction between hole wall and fluid and fluid at this moment forms damping force to vibrations, and making the thump Conversion of energy is fluid heat energy, is dispersed in the atmosphere by the vibration damper absorption again.

When the compression stroke of vibration damper, promptly automotive axle and vehicle frame each other near the time, the damping force of vibration damper should be less, so that give full play to the elastic reaction of elastic element.When the extension stroke of vibration damper, promptly automotive axle and vehicle frame each other away from the time, the damping force of vibration damper should be bigger, plays the effect of rapid damping.Cushion the task of hitting with damping because vibration damper and elastic element are being born, damping force is too small, does not have corresponding damping effect.Otherwise damping force is excessive, with the elastic element moment damage that makes in the suspension system, even the vibration damper link is damaged.

Base is one of strength member in the vibration damper, when vehicle bridge and interaxle relative velocity are excessive, requires vibration damper can strengthen the flow of hydraulic oil automatically, damping force is remained in certain scope, to avoid bearing excessive impulsive load.Damping hole on the vibration damper base of existing technology is circular hole; Under the certain situation of base diameter; The quantity and the diameter of circular hole also are restricted, because the circular hole sectional area is less, the hydraulic fluid flow rate through single circular hole in the unit time is less; Circular hole quantity is certain, and the hydraulic fluid flow rate through base in the unit time is corresponding also less.

The model utility content

The utility model technical problem to be solved is that a kind of vibration damper base that can increase hydraulic fluid flow rate is provided.

The technical solution of the utility model is; A kind of vibration damper base with following structure is provided; Comprise the base body, said base body is provided with first annular protrusion, second annular protrusion and the 3rd annular protrusion successively from interior going up outward, and said first annular relief and second annular relief form first annular groove; At least be provided with on said first annular groove along four first evenly distributed through holes of circumference, said first through hole is a square through hole.

After adopting above structure, the utility model vibration damper base compared with prior art has following advantage:

Because first through hole of establishing on first annular groove of the utility model vibration damper base is a square through hole, under the situation that number of openings equates, square through hole is bigger than the sectional area of manhole, and the hydraulic fluid flow rate through square through hole in the unit time is also more; Correspondingly in the identical time, the hydraulic fluid flow rate that flows through the base of the square through hole that is provided with equivalent amount increases.

As preferably, the quantity of said first through hole is six, six first through holes location and processing easily.

As improvement; Said second annular relief and the 3rd annular relief form second annular groove; Said second annular groove is provided with along six second evenly distributed through holes of circumference; Said second through hole is that four angles of square through hole and square through hole are equipped with fillet, and second through hole is that square through hole is compared manhole and can be increased through the hydraulic fluid flow rate on second annular groove, and four angles of second through hole are equipped with fillet and can cushion the fluid impact force that receives on four angles.

As improvement, said second through hole and first through hole are crisscross arranged on the base body, and the sectional area maximum that is crisscross arranged and can makes first through hole and second through hole increases the hydraulic fluid flow rate that flows through base.

Description of drawings

Fig. 1 is the structural representation of the utility model vibration damper valve seat;

Wherein, 1, the base body, 1.1, first annular protrusion, 1.2, second annular protrusion, the 1.3, the 3rd annular protrusion, 1.4, first annular groove, 1.5, second annular groove, 2, first through hole, 3, second through hole, 4, fillet.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is done explanation in further detail.

Please with reference to shown in Figure 1; The utility model vibration damper valve seat comprises base body 1; Said base body 1 is provided with first annular protrusion 1.1, second annular protrusion 1.2 and the 3rd annular protrusion 1.3 successively from interior going up outward; Said first annular relief 1.1 and second annular relief 1.2 form first annular groove 1.4, are provided with at least on said first annular groove 1.4 along four first evenly distributed through holes 2 of circumference, it is characterized in that: said first through hole 2 is square through hole.

The quantity of said first through hole 2 is six.

Said second annular relief 1.2 and the 3rd annular relief 1.3 form second annular groove 1.5; Said second annular groove 1.5 is provided with along six second evenly distributed through holes 3 of circumference, and said second through hole 3 is equipped with fillet 4 for four angles of square through hole and square through hole.

Said second through hole 3 and first through hole 2 are crisscross arranged on base body 1.Second through hole and first through hole are crisscross arranged on the base body and are meant, the line between two second through holes in the line between two first through holes in any center of circle excessively and the mistake center of circle is not on same straight line.

Claims

1. vibration damper base; Comprise base body (1); Said base body (1) is provided with first annular protrusion (1.1), second annular protrusion (1.2) and the 3rd annular protrusion (1.3) successively from interior going up outward; Said first annular relief (1.1) forms first annular groove (1.4) with second annular relief (1.2), is provided with at least on said first annular groove (1.4) along evenly distributed four first through holes (2) of circumference, and it is characterized in that: said first through hole (2) is a square through hole.

2. vibration damper base according to claim 1 is characterized in that: the quantity of said first through hole (2) is six.

3. vibration damper base according to claim 1; It is characterized in that: said second annular relief (1.2) and the 3rd annular relief (1.3) form second annular groove (1.5); Said second annular groove (1.5) is provided with along evenly distributed six second through holes (3) of circumference, and said second through hole (3) is equipped with fillet (4) for four angles of square through hole and square through hole.

4. vibration damper base according to claim 3 is characterized in that: said second through hole (3) is crisscross arranged on base body (1) with first through hole (2).