CN207378044U

CN207378044U - Damper

Info

Publication number: CN207378044U
Application number: CN201721344980.2U
Authority: CN
Inventors: 尤崇新
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-10-18
Filing date: 2017-10-18
Publication date: 2018-05-18
Anticipated expiration: 2027-10-18

Abstract

The utility model discloses a kind of dampers, it is related to auto-parts field, including oil pressure unit and vibration absorption unit, the oil pressure unit includes cylinder body, stretches in the mandrel of cylinder body, the vibration absorption unit includes damping spring, the lower spring mounting seat for being connected to damping spring both ends and upper spring mounting seat, the lower spring mounting seat is in thread fitting with outer wall of cylinder block, detachably there is stroke limit block between the cylinder body and upper spring mounting seat, the stroke limit block thickness is axially extending along cylinder center, and the mandrel is arranged in stroke limit block.The utility model provides the protruded length that can change mandrel, promotes a kind of damper of whole vehicle stability.

Description

Damper

Technical field

The utility model is related to automobile suspension system, more particularly to a kind of damper.

Background technology

In order to which the vibration for making vehicle frame and vehicle body decays rapidly, improve the ride comfort and comfort of running car, automotive suspension Damper is typically equipped in system.

The patent document of Chinese patent notification number CN204041847U discloses a kind of telescopic shock absorber, including valve seat, Fuel tank, working cylinder and piston rod, the valve base sealing connect one end of the fuel tank, and the working cylinder is threaded through the storage The other end of oily cylinder has placed piston rod on the working cylinder, the first retainer ring has been socketed in the fuel tank, in institute vertically It states and the second retainer ring is respectively sleeved on piston rod, bullet is provided between first retainer ring and second retainer ring Spring offers external screw thread in the store oil drum outer wall, and first retainer ring is gear ring, and the gear ring is centrally formed with spiral shell Pit, the gear ring are fixed on by the cooperation of the external screw thread and the threaded hole on the fuel tank.

Above-mentioned technical proposal can make according to the demand or personalized preference of actual road conditions between gear ring and working cylinder Produce relative rotation, with regard to can change integral body height and spring it is soft or hard, but change vehicle body height after, piston rod Protruded length will increase, during the use of shock absorber, if running car, at bad road surface, shock absorber is excessive Movement travel will cause the serious offset of vehicle's center of gravity, and cause automobile that the phenomenon that unstable occurs in the process of moving.

Utility model content

The purpose of this utility model is to provide a kind of damper, can change the protruded length of mandrel, promotes vehicle and stablizes Property.

The above-mentioned technical purpose of the utility model technical scheme is that：A kind of damper, including Oil pressure unit and vibration absorption unit, the oil pressure unit include cylinder body, stretch in the mandrel of cylinder body, and the vibration absorption unit includes damping Spring, the lower spring mounting seat for being connected to damping spring both ends and upper spring mounting seat, the lower spring mounting seat and cylinder External wall detachably has stroke limit block, the stroke limit block in thread fitting between the cylinder body and upper spring mounting seat Thickness is axially extending along cylinder center, and the mandrel is arranged in stroke limit block.

By using above-mentioned technical proposal, the length of cylinder body can be extended using stroke limit block, so that mandrel is outer Dew length shortens, then in compression process, spring mounting seat can be made to contact at stroke limit block in advance, shorten the pressure of mandrel Indention journey keeps the ratio between mandrel length and its distance of stretch out and draw back suitable, avoids generating the stroke of mandrel when vehicle body adjusts Dislocation, influences the stability of vehicle in the process of moving, after overall height is adjusted, can keep the limited compression stroke of damper In certain scope, avoid that vehicle is caused to generate the inclined of center of gravity during bad road surface is travelled on due to compression travel is long It moves, and causes vehicle traveling unstable；By this movement travel /V and then vehicle's center of gravity is reduced, before reducing left and right vehicle wheel Beat afterwards, increase vehicle center of gravity stability, to running car at bad road surface the steady and security of running car have compared with High promotion.

The utility model is further arranged to：The stroke limit block includes two fixture blocks being mutually clamped, two cards Parallel to cylinder body towards upper one side end face of spring mounting seat, two fixture blocks are clamped to be formed to be worn for mandrel for the end face that block is formed Centre bore.

By using above-mentioned technical proposal, dismounting effect can be realized to stroke limit block, so as to according to actual vehicle Height replaces the stroke limit block of different-thickness, so that the protruded length of mandrel is maintained at a suitable value, has widened its use Scope.

The utility model is further arranged to：Fixture block cross section semicircular in shape, the both ends of the surface of the fixture block are set respectively There are the dovetail groove being mutually clamped and dovetails, the fixture block center offers semicircle orifice.

By using above-mentioned technical proposal, using the clamping engagement of dovetails and dovetail groove, facilitate and pacify stroke limit block It is filled between cylinder body and upper spring mounting seat, and is steadily set on mandrel, two fixture blocks rely on semicircle orifice after clamping A centre bore for wearing and sliding for mandrel is formed, so as to not interfere with the normal work of oil pressure unit.

The utility model is further arranged to：One side end face of the stroke limit block towards lower spring mounting seat contacts at Cylinder body wears and slides in centre bore towards upper one side end face of spring mounting seat, the mandrel.

By using above-mentioned technical proposal, in mandrel contraction process, cylinder body is increased in axial direction using stroke limit block On length, so as to shorten the movement travel of mandrel, when running into bad road surface, mandrel can be avoided to be compressed excessive row Journey and the acute variation for causing center of gravity, and vehicle's center of gravity is caused to deviate, cause traveling unstable.

The utility model is further arranged to：The stroke limit block is axially arranged with multiple along mandrel.

By using above-mentioned technical proposal, change the movable stroke of mandrel by changing the number of stroke limit block, Can the length that mandrel is stretched out be changed according to the soft or hard degree and overall height of actual spring, so as to which vehicle is avoided to travel The acute variation of vehicle's center of gravity is caused to during bad ground.

The utility model is further arranged to：The stroke limit block is arranged and thread fitting is in the outer wall of cylinder body, described Stroke limit block stretches out in cylinder body and sets one side end face of mandrel.

By using above-mentioned technical proposal, being detachably connected for stroke limit block and cylinder body is realized using thread fitting, and And the end face of stroke limit block is made to stretch out in the end face of cylinder body, the protruded length of mandrel is changed, passes through rotational travel /V Block can change the distance that stroke limit block stretches out cylinder body end face, and then can be adjusted according to actual different overall height.

The utility model is further arranged to：The lower spring mounting seat includes being arranged and thread fitting is in outer wall of cylinder block Turn ring seat contacts at turn ring seat towards upper one side end face of spring mounting seat and thread fitting in the mounting ring of outer wall of cylinder block, The damping spring is arranged and relatively rotates in mounting ring away from one end of upper spring mounting seat.

By using above-mentioned technical proposal, ring is rotatablely installed, position of the adjustment mounting ring on outer wall of cylinder block can change The distance between mounting ring and upper spring mounting seat, so as to change the soft or hard degree of damping spring, and then can be according to actually driving Custom is sailed to change the length of shock-proof spring；Meanwhile using turn ring seat, /V work is further played to the position of mounting ring With, it avoids in the process of moving, and mounting ring is made to generate improper movement.

The utility model is further arranged to：The mounting ring is equipped with mounting surface, and the damping spring is pacified away from upper spring The one end for filling seat is equipped with connection plane that is parallel and contacting at mounting surface.

By using above-mentioned technical proposal, using mounting surface and the relative rotation relation of connection plane, in rotational installation ring When, the torsion of damping spring will not be caused, keeps the normal condition of damping spring, and then the normal tune of mounting ring will not be caused Section process.

The utility model is further arranged to：The cylinder body is towards upper one side end face of spring mounting seat and upper spring mounting seat Between be provided with dust cover.

By using above-mentioned technical proposal, the space between cylinder body and upper spring mounting seat can be played using dust cover Dustproof effect avoids external dust from generating accumulation between mandrel and cylinder body and play inhibition to the flexible of mandrel.

The utility model is further arranged to：The mandrel is fixed with cushion rubber bumper away from one end of cylinder body.

By using above-mentioned technical proposal, during mandrel is shunk, when cushion rubber bumper and stroke limit block collide, energy Enough shock dynamics for reducing the two avoid spring mounting seat and stroke limit block from generating direct collision, and upper spring is installed Seat damages.

In conclusion the utility model has the advantages that：Utilize the stroke between cylinder body and upper spring mounting seat Stroke limit block by dismountable mode, is sheathed on mandrel by limited block, so as to change the exposed length of mandrel, into And just can change the movement travel of mandrel, by this movement travel /V and then vehicle's center of gravity is reduced, it is left to reduce vehicle Beat before and after the right side increases the stability of vehicle center of gravity, to the steady and security of running car running car at bad road surface There is higher promotion.

Description of the drawings

Fig. 1 is the structure diagram of the present embodiment one；

Fig. 2 is that the present embodiment one omits dust cover and is mainly used for embodying the structure diagram of mandrel；

Fig. 3 is the partial structural diagram that the present embodiment one is mainly used for embodying lower spring mounting seat；

Fig. 4 is that the present embodiment one omits damping spring and is mainly used for embodying the structure diagram of stroke limit block；

Fig. 5 is the structure diagram that the present embodiment one is mainly used for embodying stroke limit block；

Fig. 6 is the structure diagram of the present embodiment two；

Fig. 7 is the structure diagram of the present embodiment four.

Reference numeral：1st, oil pressure unit；11st, cylinder body；12nd, mandrel；2nd, vibration absorption unit；21st, damping spring；22nd, lower spring Mounting base；221st, turn ring seat；222nd, mounting ring；23rd, upper spring mounting seat；3rd, stroke limit block；31st, fixture block；4th, centre bore； 5th, dovetails；6th, dovetail groove；7th, semicircle orifice；8th, mounting surface；9th, plane is connected；10th, dust cover；13rd, cushion rubber bumper；14th, necking.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Embodiment one：

A kind of damper, shown referring to Figures 1 and 2, including oil pressure unit 1 and vibration absorption unit 2, oil pressure unit 1 includes cylinder Shape cylinder body 11 stretches along cylinder body 11 is central axial in the mandrel 12 in cylinder body 11；Vibration absorption unit 2 includes being fixedly connected on mandrel 12 The upper spring mounting seat 23 of end, the lower spring mounting seat 22 for being connected to 11 outer wall of cylinder body are connected to lower 22 and of spring mounting seat Damping spring 21 between upper spring mounting seat 23.

With reference to shown in Fig. 2, in order to change the soft or hard degree of damping spring 21, the outer wall of cylinder body 11 has external screw thread； Lower spring mounting seat 22 include being arranged and thread fitting in 11 outer wall of cylinder body turn ring seat 221, to be placed in turn ring seat 221 close Upper 23 one side of spring mounting seat and thread fitting are installed in the mounting ring 222 of 11 outer wall of cylinder body, damping spring 21 away from upper spring One end of seat 23 is connected to mounting ring 222；With reference to shown in Fig. 3, in a ring, mounting ring 222 is in boss shape and most for turn ring seat 221 Major diameter is more than the diameter of turn ring seat 221, and mounting ring 222 contacts at turn ring seat 221 away from a side end face of vibration absorption unit 2 Towards upper 23 1 side end face of spring mounting seat, so as to play position-limiting action to the position of mounting ring 222 using turn ring seat 221.

With reference to shown in Fig. 3, the tool of mounting ring 222 is there are one the mounting surface 8 towards 21 one side of damping spring, in damping spring 21 One end away from lower spring mounting seat 22 is equipped with the connection plane 9 parallel with mounting surface 8, and connection plane 9 is bonded and contacts at peace Dress face 8, meanwhile, damping spring 21 is sheathed on the boss outer ring of mounting ring 222；Have between damping spring 21 and mounting ring 222 Relative rotation relation then when being rotatablely installed ring 222, can effectively avoid damping spring 21 from twisting with mounting ring 222.

With reference to shown in Fig. 4, after the whole overall height of adjustment or the soft or hard degree of change spring, the movement travel of mandrel 12 It will change, in order to avoid traveling causes vehicle's center of gravity not at bad road surface because of the excessive movement travel of mandrel 12 Surely, detachably there is the stroke limit block 3 made of rubber material in the outside of mandrel 12.

With reference to shown in Fig. 4 and Fig. 5, stroke limit block 3 includes the fixture block 31 of two settings that are centrosymmetric, two fixture blocks 31 The equal semicircular in shape of transversal horizontal plane；And the center of each fixture block 31 offers radius and semicircle similar in 12 radius of mandrel Hole 7；Two the vertical side faces of fixture block 31, one integrally formed with dovetails 5, another offers what is plugged with dovetails 5 Dovetail groove 6, after two fixture blocks 31 are mutually engaged by clamping by dovetails 5 with dovetail groove 6, two semicircle orifices 7 form one For the centre bore 4 that mandrel 12 is worn, mandrel 12 can be slid after centre bore 4 is worn in centre bore 4；And stroke limit block 3 Installation site close to cylinder body 11, then the end face of stroke limit block 3 towards lower 22 one side of spring mounting seat contacts at cylinder body 11 Towards the end face of upper 23 one side of spring mounting seat, then when upper spring mounting seat 23 pushes down with mandrel 12, upper spring peace Dress seat 23 can contact at stroke limit block 3 in advance, then can not move still further below, limit the movement travel of mandrel 12, then not The center of gravity of vehicle can acutely be changed, vehicle is kept to travel the stability at bad road surface.

With reference to shown in Fig. 2, in order to reduce the shock dynamics between upper spring mounting seat 23 and stroke limit block 3, There are one cushion rubber bumpers 13 for one end set of the mandrel 12 away from cylinder body 11；Tight fit between cushion rubber bumper 13 and mandrel 12, and delay Rush the surface that rubber cushion 13 contacts at spring mounting seat 23 away from the end face of 3 one side of stroke limit block.

It is shown referring to Figures 1 and 2, meanwhile, set between cylinder body 11 and upper spring mounting seat 23 there are one have deformation energy The dust cover 10 of power, the both ends of dust cover 10 are individually fixed in cylinder body 11 towards upper 23 1 side end face of spring mounting seat and upper spring The lower face of mounting base 23.

The operation principle of the present embodiment is：When needing to change the soft or hard degree of damping spring 21, turn is rotated using spanner Ring seat 221 makes to be separated between turn ring seat 221 and mounting ring 222, is rotated further by mounting ring 222, adjusts mounting ring 222 in cylinder Position on 11 outer wall of body, and then complete the adjusting of 21 soft or hard degree of damping spring.

When in use, upper spring mounting seat 23 is fixed on vehicle bottom, the bottom of cylinder body 11 is articulated in wheel shaft；In vehicle Vibrations when, upper spring mounting seat 23 push mandrel 12 to 11 one side of cylinder body push, the buffering adhesive on upper spring mounting seat 23 When pad 13 contacts at stroke limit block 3, then mandrel 12 can not be again to 11 contract of cylinder body, and then the movement of mandrel 12 can be determined Stroke shortens the extreme sport stroke of increased mandrel 12 originally, and mandrel 12 occurs acutely to become when avoiding travelling on bad road surface Change and vehicle's center of gravity is caused to change, promote the stability of vehicle traveling.

Embodiment two：

A kind of damper, with embodiment one the difference is that, with reference to shown in Fig. 6, in its natural state, stroke limit The diameter of the centre bore 4 of block 3 is slightly less than 12 diameter of mandrel, so as to which after stroke limit block 3 is installed to mandrel 12, stroke limits Position block 3 and mandrel 12 can keep tight fit, then the relative position of the two is constant, at this point it is possible to according to actual needs by stroke Limited block 3 is installed to the different position of the exposed part of mandrel 12, then adjusts upper spring mounting seat 23 and stroke as needed The distance between limited block 3, when upper spring mounting seat 23 promotes mandrel 12 to push downwards, mandrel 12 is with stroke limit block 3 It moves downward simultaneously, when stroke limit block 3 contacts at the upper surface of cylinder body 11, then mandrel 12 can not move still further below, so as to The movable stroke of mandrel 12 is determined.

Embodiment three：

A kind of damper, with embodiment one the difference is that, according to the overall height or damping bullet after actual adjust The soft or hard degree of spring 21 is equipped with multiple stroke limit blocks 3 on mandrel 12, and then changes the integral thickness of stroke limit block 3, Change the protruded length of mandrel 12, then change the effective exercise stroke of mandrel 12.

Example IV：

A kind of damper, the difference is that, with reference to shown in Fig. 7, stroke limit block 3 is in cylindrical hollow with embodiment one Body is equipped with the internal thread for being matched with 11 outer wall of cylinder body in the inner wall of stroke limit block 3, and stroke limit block 3 is arranged and thread fitting In cylinder body 11 close to one end of upper spring mounting seat 23, and stroke limit block 3 is made to stretch out in the upper surface of cylinder body 11, so as to Enough change the protruded length of mandrel 12 by rotational travel limited block 3；At the same time, in order to install dust cover 10（It is shown in figure 1）, one end of upper spring mounting seat 23 is provided with necking 14 of the diameter less than stroke limit block 3 in stroke limit block 3, from And one end of dirt-proof boot can be sheathed on to necking 14, and the end of dust cover 10 has the trend that the heart collapses thereto, from And after dust cover 10 is installed, dust cover 10 can banding in 14 outer ring of necking.

This specific embodiment is only explanation to the utility model, is not the limitation to the utility model, ability Field technique personnel can as needed make the present embodiment the modification of no creative contribution after this specification is read, but As long as it is all protected in the right of the utility model be subject to Patent Law.

Claims

1. a kind of damper, including oil pressure unit（1）And vibration absorption unit（2）, the oil pressure unit（1）Including cylinder body（11）, stretch Shrink in cylinder body（11）Mandrel（12）, the vibration absorption unit（2）Including damping spring（21）, be connected to damping spring（21） The lower spring mounting seat at both ends（22）With upper spring mounting seat（23）, the lower spring mounting seat（22）With cylinder body（11）Outer wall is in Thread fitting, it is characterized in that：The cylinder body（11）With upper spring mounting seat（23）Between detachably have stroke limit block（3）, institute State stroke limit block（3）Thickness is along cylinder body（11）Central axial extension, the mandrel（12）It is arranged in stroke limit block（3）.

2. damper according to claim 1, it is characterized in that：The stroke limit block（3）Including two cards being mutually clamped Block（31）, two fixture blocks（31）The end face of composition is parallel to cylinder body（11）Towards upper spring mounting seat（23）One side end face, Two fixture blocks（31）Clamping is formed for mandrel（12）The centre bore worn（4）.

3. damper according to claim 2, it is characterized in that：The fixture block（31）Cross section semicircular in shape, the fixture block （31）Both ends of the surface be respectively equipped with the dovetail groove being mutually clamped（6）And dovetails（5）, the fixture block（31）Center offers semicircle orifice （7）.

4. the damper according to Claims 2 or 3, it is characterized in that：The stroke limit block（3）Towards lower spring mounting seat （22）A side end face contact at cylinder body（11）Towards upper spring mounting seat（23）One side end face, the mandrel（12）It wears and slides It moves in centre bore（4）.

5. damper according to claim 1 or 2, it is characterized in that：The stroke limit block（3）Along mandrel（12）Axially set Have multiple.

6. damper according to claim 1, it is characterized in that：The stroke limit block（3）It is arranged and thread fitting is in cylinder Body（11）Outer wall, the stroke limit block（3）Stretch out in cylinder body（11）Mandrel is set（12）One side end face.

7. damper according to claim 1, it is characterized in that：The lower spring mounting seat（22）Including being arranged and screw thread is matched somebody with somebody Together in cylinder body（11）The turn ring seat of outer wall（221）, contact at turn ring seat（221）Towards upper spring mounting seat（23）One side Face and thread fitting is in cylinder body（11）The mounting ring of outer wall（222）, the damping spring（21）Away from upper spring mounting seat（23） One end be arranged and relatively rotate in mounting ring（222）.

8. damper according to claim 7, it is characterized in that：The mounting ring（222）Equipped with mounting surface（8）, it is described to subtract Shake spring（21）Away from upper spring mounting seat（23）One end be equipped with parallel and contact at mounting surface（8）Connection plane（9）.

9. damper according to claim 1, it is characterized in that：The cylinder body（11）Towards upper spring mounting seat（23）One side End face and upper spring mounting seat（23）Between be provided with dust cover（10）.

10. damper according to claim 1, it is characterized in that：The mandrel（12）Away from cylinder body（11）One end fix There is cushion rubber bumper（13）.