CN206111843U - A flat housing for bumper shock absorber - Google Patents

Abstract

The utility model discloses a flat housing for bumper shock absorber, including upper cover, lower cover, get on the right track, down track and holder, upper cover and lower cover all are the round structure, upper cover and lower cover junction are equipped with the external seal circle, are equipped with the inside seal circle on the lower cover inner circle wall, external seal circle and inside seal enclose and all adopt secondary injection moulding, the interval is equipped with a plurality of rectangular channels on the inner circle wall that the external seal enclosed, the holder is oblique annular structure, the lower cover overcoat has the metal outer lane. The utility model discloses simple structure, be full of cracks, abnormal sound, jamming phenomenon can not appear at rotational stabilization, smoothness.

Description

A kind of plane bearing for amortisseur

Technical field

This utility model is related to plane bearing field, more particularly, to a kind of plane bearing for amortisseur, mainly should For automotive suspension amortisseur, bearing automobile car body weight and car assisted steering.

Background technology

The linear motion bearing form of early stage, exactly places row's rod under row's skid plate.Modern linear motion bearing Same operation principle is used, only with ball replaces roller sometimes.Simplest swivel bearing is axle sleeve bearing, and it is only It is a bushing being clipped between wheel and wheel shaft.This design is subsequently scrolled bearing replacement, with many cylinders Roller substitutes original bushing, and each rolling element is just as a single wheel.

On the ancient Roman's ship for being built in B.C. 40 years that Italian nm lake finds, it was found that the ball of early stage The example of bearing：One wooden ball bearing is for supporting rotating table top.It is said that Lie Angnaduo Leonardo da Vincis were on a left side in 1500 The right side once carried out description to a kind of ball bearing.In the various immature factor of ball bearing, have the very important point be exactly ball it Between can collide, cause extra friction.But can be by the ball to put little cage one by one into prevents this phenomenon.17 generation Record, Galileo did earliest description to the ball bearing of " cage mounted ball ".17th century end, C. watt of Lip river of Britain manufactures and designs ball axle Hold, and be mounted in the P. of on probation and Britain on postal car and irrigate the patent that think of obtains ball bearing.Earliest input it is practical with retainer Rolling bearing be clock and watchmaker John Harry be inferior to 1760 for make H3 chronoscopes and invent.18 end of the centurys Germany H.R. hertz delivers the paper with regard to ball bearing contact stress.On the basis of hertz achievement, the R. of Germany applies Trebek, auspicious A. handkerchief nurse Glenns of allusion quotation et al. have carried out substantial amounts of test, and the design theory and Calculation of Fatigue Life to developing rolling bearing is made Contribution.Subsequently, the N.P. Dinko Petrov application newton law of viscosities calculation bearing friction of Russia.First with regard to ball track Patent is that the fertile grace of the gloomy Philips of Karma was obtained in 1794.

1883, Friedrich Fei Sheer was proposed and is ground that size is identical, circularity is accurate using suitable production machine The opinion of true steel ball, has established the basis of bearing industry.

Bearing：For determining rotary shaft and other parts relative motion position, the parts of supporting or guide effect are played.It It is that part that is fixed and reducing load coefficient of friction is played in mechanical transmission course.It may also be said that when other parts on axle that This produce relative motion when, for reducing power transmission process in coefficient of friction and holding shaft center fix parts.

Existing automotive suspension pres planes bearing, because structure is limited, its sealing, dust-proof, waterproof and other effects are poor, and it is determined , in motor process, easily there is breakage and turn to the failures such as abnormal sound in position, guide frame limitation.Therefore, it is necessary to its carry out Improve.

The content of the invention

Technical problem to be solved in the utility model is to provide a kind of good sealing effect, constitutionally stable plane bearing, The plane bearing has good dustproof effect, is not in cracking, abnormal sound, catching phenomenon when the plane bearing is rotated.

This utility model solve the technical scheme that adopted of above-mentioned technical problem for：A kind of plane axis for amortisseur Hold, including upper lid, lower cover, upper rail, lower railway and retainer, described upper lid and lower cover is in cyclic structure, and described is upper Lid and lower cover junction are provided with exterior seal ring, and described lower cover inner ring wall is provided with inner seal ring, described exterior seal ring and interior Sealing ring adopts secondary injection molding, and on the inner ring wall of described exterior seal ring multiple rectangular channels, described guarantor are interval with Frame is held in oblique circulus, metal outer ring is cased with outside described lower cover.

Further improve as this utility model, described retainer is provided with plane of rotation, the inclination of described plane of rotation Angle is 45 °, and multiple mobilizable steel balls are interval with described plane of rotation.Jing many experiments show, inclination angle is 45 ° and turns Dynamic face, steel ball rotates most stable and is not in abnormal sound.

Further improve as this utility model, described lower railway and upper rail are in cyclic structure, described lower rail Road inwall is provided with outside depression, and described upper rail pipeline outer wall is provided with inside depression, described lower railway and upper rail Connection, described outside depression and the composition rolling groove that caves inward, described retainer is movably arranged in rolling groove.Rolling groove energy The enough direction of motion for being oriented to retainer well.

Compared with prior art, the utility model has the advantage of parts are few, simple structure, by the external seal for arranging Circle and inner seal ring, strengthen sealing effectiveness of the present utility model, can not only preferably play dustproof effect, and can be effective Reduce the abnormal sound that sends when retainer is rotated, in addition in lower cover overcoat, to improve structure of the present utility model strong for metal outer ring Degree, rotates this utility model more stable.

Description of the drawings

Fig. 1 is this utility model structural decomposition diagram.

Specific embodiment

In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain this Utility model, is not used to limit this utility model.

As shown in Figure 1：A kind of plane bearing for amortisseur, including upper lid 1, lower cover 2, the upper rail 3, and of lower railway 4 Retainer 8, upper lid 1 and lower cover 2 are in cyclic structure, and upper lid 1 and the junction of lower cover 2 are provided with exterior seal ring 5, the inner ring wall of lower cover 2 Be provided with inner seal ring 6, exterior seal ring 5 and inner seal ring 6 adopt secondary injection molding, on the inner ring wall of exterior seal ring 5 between Every multiple rectangular channels are provided with, retainer 8 is in be cased with metal outer ring 7 outside oblique circulus, lower cover 2.

Retainer 8 is provided with plane of rotation 8, and the inclination angle of plane of rotation 8 is 45 °, is interval with plane of rotation 8 multiple movable Steel ball.

Lower railway 4 and upper rail 3 are in cyclic structure, and the inwall of lower railway 4 is provided with outside depression, and get on the right track 3 outer walls Inside depression is provided with, lower railway 4 and upper rail 3 connect, and be outwards recessed and cave inward composition rolling groove, and retainer 8 is lived It is dynamic to be located in rolling groove.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit this utility model Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in this utility model Protection domain within.

Claims (3)

1. a kind of plane bearing for amortisseur, including upper lid, lower cover, upper rail, lower railway and retainer, it is characterised in that Described upper lid and lower cover is in cyclic structure, and described upper lid and lower cover junction is provided with exterior seal ring, in described lower cover Circle wall is provided with inner seal ring, and described exterior seal ring and inner seal ring adopts secondary injection molding, described exterior seal ring Inner ring wall on be interval with multiple rectangular channels, described retainer is in oblique circulus, is cased with outside metal outside described lower cover Circle.

2. a kind of plane bearing for amortisseur according to claim 1, it is characterised in that set on described retainer There is plane of rotation, the inclination angle of described plane of rotation is 45 °, and multiple mobilizable steel balls are interval with described plane of rotation.

3. a kind of plane bearing for amortisseur according to claim 2, it is characterised in that described lower railway and upper Track is in cyclic structure, and described lower railway inwall is provided with outside depression, and described upper rail pipeline outer wall is provided with inwardly Depression, described lower railway and upper rail connection, described outside depression and the composition rolling groove that caves inward, described holding Frame is movably arranged in rolling groove.