CN208686871U

CN208686871U - A kind of damper

Info

Publication number: CN208686871U
Application number: CN201821446692.2U
Authority: CN
Inventors: 沈礼方; 金玉根; 金嘉平
Original assignee: Jiaxing Fulaide Automobile Parts Manufacturing Co Ltd
Current assignee: Jiaxing Fulaide Automobile Parts Manufacturing Co Ltd
Priority date: 2018-09-04
Filing date: 2018-09-04
Publication date: 2019-04-02
Anticipated expiration: 2028-09-04

Abstract

The utility model discloses a kind of dampers, belong to suspension system field, aim to solve the problem that damping oil can the gap between piston and working cylinder stay, cause the deattenuation of damper, thus the problem of reducing the damping effect of damper, its key points of the technical solution are that: including working cylinder, the working cylinder opening is fixedly connected with end cap, piston is axially slidably connected in the working cylinder, the piston coaxial is fixed with piston rod, the piston rod passes through work cylinder end cap and extends to outside working cylinder, the piston side wall coaxially offers several annular grooves, O-ring is arranged in the annular groove, the O-ring lateral wall is abutted with the inner wall of working cylinder.The utility model it is structurally reasonable, it is easy to operate, using O-ring by clearance seal, make damping oil that can not increase the damping of damper by the gap between piston and the work inside wall of cylinder, improve the damping effect of damper.

Description

A kind of damper

Technical field

The utility model belongs to suspension system, more specifically, it relates to a kind of damper.

Background technique

Currently, the damper that automobile uses is substantially all category hydraulic damper.Vehicle is in rough ride, hydraulic damper Piston rod constantly make stretching motion in cylinder body, the intracorporal damping oil of cylinder is constantly flowed up and down by the connecting hole on piston, Carry out cushion impact forces, extenuates degree of jolting.

Notification number is a kind of anti-damping oil damper foamy of energy, skill disclosed in the Chinese patent of CN201162799 Art main points are: including the piston component in working cylinder, working cylinder, the piston rod on piston, damping in working cylinder, working cylinder Oil, valve body, working cylinder upper end guider oil sealing sub-unit；It is characterized in that being set in damping oil between working cylinder and working cylinder Set an oil resistant spongy layer.Spongy layer is made of polyester and polyether-type oil the filtering filtering sponge material of oil resistant.

Above scheme makes no longer to generate bubble in damping oil using oil resistant spongy layer, but when using damper, piston There are gap between the inner wall of working cylinder, damping oil can gap flowing between piston and working cylinder, cause damper Deattenuation, damping effect are undesirable.

Therefore it needs to propose the new technical solution of one kind to solve the above problems.

Utility model content

In view of the deficienciess of the prior art, subtracting the purpose of this utility model is to provide a kind of damper for being promoted The damping for shaking device, reduces the vibration amplitude of damper.

To achieve the above object, the utility model provides following technical solution: a kind of damper, including working cylinder, institute It states working cylinder opening and is fixedly connected with end cap, piston is axially slidably connected in the working cylinder, the piston coaxial is fixed with Piston rod, the piston rod pass through work cylinder end cap and extend to outside working cylinder, and the piston side wall coaxially offers several annular grooves, O-ring is arranged in the annular groove, the O-ring lateral wall is abutted with the inner wall of working cylinder.

By using above-mentioned technical proposal, the gap for reducing piston between the inside wall of cylinder that works using o-ring, to subtract The quantity for having lacked the damping oil passed through in the gap between piston and the work inside wall of cylinder, increases the damping of damper, enhances The damping effect of damper.

The utility model is further arranged to: the piston is connected with the adjusting group of adjustment connecting hole internal damping oil stream amount Part, the adjusting component include several abutting blocks connecting with piston thread, and the abutting block is in a circular table shape and its is round table-like tiltedly Facing towards connecting hole, it is described abut block minimum diameter be less than connecting hole diameter, it is several it is described abut blocks axis respectively with The axis of its corresponding connecting hole is overlapped, and the side of the piston towards end cap is fixedly connected with bracket, the abutting block and branch Frame is threadedly coupled.

By using above-mentioned technical proposal, using abutting block far from or close to connecting hole, to adjust through connecting hole The flow of damping oil, and then the damping of damper is adjusted, the vibration of different amplitudes is just suitable for using the same damper.

The utility model is further arranged to: through several rotation slots are offered, the adjusting component also wraps the end cap Several rotating bars with end cap rotation connection are included, the rotating bar is inserted in rotation slot and is rotatablely connected with rotation slot, described Rotating bar is fixedly connected with polygon clamping block towards the end face for abutting block, and the end face for abutting block towards rotating bar offers With the clamping groove of clamping block cooperation, the clamping block can be placed in clamping groove.

By using above-mentioned technical proposal, clamping block and clamping groove are clamped, direct rotary motion bar achieves that abutting Block is separate or close to piston, and the process of adjusting no longer needs to dismantle in damper, adjusts more convenient.

The utility model is further arranged to: the abutting block is fixedly connected with limited block, and the limited block can be with bracket Towards the end face of piston abutting and it is used to prevent from abutting block and bracket is detached from.

By using above-mentioned technical proposal, prevent from abutting the company of block disengaging and bracket with the limitation of bracket using limited block It connects, increases the stability for abutting block connection.

The utility model is further arranged to: the rotating bar is socketed with the gap between closing rotating bar and rotation slot The outer wall of outside framework oil seal, the outside framework oil seal is abutted with rotation slot inner wall.

By using above-mentioned technical proposal, using outside framework oil seal by the clearance seal between rotating bar and rotation slot, damping Oil will not be revealed out of working cylinder, and the quantity of the damping oil in working cylinder is made to keep stablizing, and the damping of damper will not change, from And the shock absorbing process of damper is made to keep stablizing.

The utility model is further arranged to: the rotating bar has been fixedly and coaxially connected gear, and the end cap coaxially turns Dynamic to be connected with ring gear, several gears are engaged with ring gear simultaneously.

By using above-mentioned technical proposal, at the aperture for needing to adjust connecting hole, ring gear is rotated directly to drive All rotating bar rotations, the process of rotating bar rotation are more convenient.

The utility model is further arranged to: the end face of the ring gear towards end cap is fixedly connected with friction pad, described Friction pad is abutted with end cap.

By using above-mentioned technical proposal, ring gear is applied in obstruction using friction pad when not needing rotation and abutting block The power of gear ring rotation, is kept fixed ring gear, so that rotating bar be made also to be kept fixed, be not in clamping block and clamping groove without It is more stable to adjust component for the case where method is aligned.

The utility model is further arranged to: end face of the ring gear far from end cap is circumferentially fixed to be connected with several abuttings Bar.

By using above-mentioned technical proposal, when rotating ring gear to bar force is abutted, ring gear is driven using bar is abutted Rotation, the process for rotating ring gear are more convenient.

In conclusion the utility model has the following beneficial effects:

1, the utility model reduces the two of the damping oil that the gap between piston and working cylinder is flowed through using O-ring, from And the damping of damper is increased, reduce the vibration amplitude of damper；

2, component is adjusted by setting, makes damper that can realize the change of damping, so that damper be made to be suitable for different width The vibration of degree.

Detailed description of the invention

Fig. 1 is the perspective view of the present embodiment；

Fig. 2 is the schematic diagram that the present embodiment is used to show piston；

Fig. 3 is the portion the A enlarged drawing of Fig. 2；

Fig. 4 is the portion the B enlarged drawing of Fig. 2.

Detailed description of the invention: 1, working cylinder；11, piston；111, connecting hole；112, annular groove；113, bracket；12, end cap；121, turn Dynamic slot；122, stop collar；123, fixed block；13, piston rod；14, bottom cover；2, O-ring；3, component is adjusted；31, block is abutted； 311, clamping groove；312, limited block；32, rotating bar；341, clamping block；4, outside framework oil seal；5, gear；51, ring gear；511, it allows Position slot；52, bar is abutted；6, friction pad.

Specific embodiment

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

Wherein identical components are presented with like reference characters.It should be noted that word used in the following description Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and "outside" refers respectively to the direction towards or away from geometric center of specific component.

A kind of damper, as shown in Figure 1, seeing Fig. 2 including working cylinder 1, the piston 11(coaxial with working cylinder 1) and piston 11 bar of piston of 11 connections and the end cap 12 being open for closing working cylinder 1.Working cylinder 1 is cylindrical shape, and one end is welded with bottom Lid 14, the other end are threaded with end cap 12, and bottom cover 14 and end cap 12 are jointly by 1 bore seal of working cylinder.Piston 11 is circle Cylindricality, in sliding in working cylinder 1 and the connecting hole 111 there are three opened up for the damping oil that circulates is circumferentially run through in end face thereon (see figure 3).11 bar of piston passes through piston 11 and, the axis of piston 11 bar and the axis of piston 11 fixed using bolt and piston 11 It is overlapped.As shown in Fig. 2, 11 side wall of piston is coaxially opened up there are two annular groove 112, two annular grooves 112 respectively close to end face thereon and Lower end surface.O-ring 2 is respectively sleeved in sliding slot, the outer diameter of O-ring 2 is greater than the diameter of piston 11, lateral wall and working cylinder 1 Inner wall abuts.Reduce the gap between 1 inner wall of 11 side wall of piston and working cylinder by O-ring 2, to reduce from piston 11 The quantity for the damping oil that gap between working cylinder 1 passes through reduces the shake of damper to increase the damping of damper Dynamic amplitude.

As shown in figure 3, causing the damping effect of damper to reduce, thus in difference due to the damping for increasing damper Occasion when need replacing different dampers, need to prepare spare damper at this time, be more troublesome.Therefore piston 11 is connected with The adjusting component 3(for adjusting 111 internal damping oil stream amount of connecting hole is shown in Fig. 2), the abutting block 31 that component 3 includes truncated cone-shaped is adjusted, is supported The axis for connecing block 31 is overlapped with the axis of connecting hole 111 respectively and the inclined-plane of its truncated cone-shaped is towards connecting hole 111.11 court of piston Three U-shaped brackets 113 are welded with to the end face of end cap 12, and the U type slot of bracket 113 is towards piston 11.Abut block 31 maximum gauge is greater than the diameter of connecting hole 111, and minimum diameter is less than the diameter of connecting hole 111, and three abutting blocks 31 divide It is not threadedly coupled with bracket 113 and can be by the closing open at one end of connecting hole 111.Abutting block 31 by rotation makes to abut block 31 far The flow of damping oil is adjusted to change sectional area of the connecting hole 111 for damping oil flowing from or close to connecting hole 111, And then the damping of damper is adjusted, damper is suitable for more amplitudes at this time.

As shown in Figure 3 and Figure 4, it needs to dismantle in damper when abutting the spacing between block 31 and piston 11 due to adjusting, It is more troublesome.Therefore adjust component 3(and see Fig. 2) it further include the rotating bar 32 being rotatablely connected with end cap 12.End cap 12 is towards piston 11 end face, which is run through, offers three rotation slots 121 that with rotating bar 32 cooperate coaxial with connecting hole 111, and rotating bar 32 is planted With in rotation slot 121 and itself and rotation slot 121 are rotatablely connected.Rotating bar 32 is coaxially fixed with positive six face towards the end face of piston 11 Shape clamping block 341 abuts block 31 and coaxially offers the clamping groove 311 cooperated with clamping block 341, card towards the end face of rotating bar 32 Connecing block 341 can be placed in clamping groove 311.When needing to adjust the flow of the damping oil passed through in connecting hole 111, by clamping block 341 are placed in clamping groove 311, are rotated by rotary motion bar 32 to make to abut block 31, and then adjust and abut block 31 and piston Spacing between 11.It when adjusting the spacing between abutting block 31 and piston 11, no longer needs to dismantle in damper, subtract to make to adjust The process for shaking device damping is more convenient.

As shown in Figure 3 and Figure 4, due to using the rotation of rotating bar 32 to be difficult to determine the position for abutting block 31 when abutting block 31, It may be there is a situation where abutting block 31 to be disconnected with bracket 113, to influence the use of abutting block 31.Therefore it is same to abut block 31 Axis is welded with discoidal limited block 312, and when abutting block 31 is not in connecting hole 111, limited block 312 can be with bracket 113 It is abutted towards the end face of piston 11.It prevents abutting block 31 to be disconnected with bracket 113 using limited block 312, increases and adjust component 3 Stability when use.

As shown in figure 4, due to having gap between rotating bar 32 and rotation slot 121, meeting during rotating bar 32 rotates There is damping oil leakage, to influence the use of damper.Therefore rotating bar 32 is socketed with outside framework oil seal 4, and outside framework oil seal 4 will rotate Between bar 32 and rotation slot 121 gap closing, make damping oil will not the gap between rotation slot 121 and rotating bar 32 let out Dew, increases the service life of damper.

As shown in figure 4, due to use adjust component 3(see Fig. 2) when need to rotate three rotating bars 32, be more troublesome.Cause This rotating bar 32 is coaxially fixed with gear 5, and end cap 12, which rotates coaxially, is connected with ring gear 51, ring gear 51 simultaneously with three teeth 5 engagement of wheel.The end face of end cap 12 towards ring gear 51 is fixedly and coaxially connected restraining position ring block 122, and stop collar 122 is far from end cap 12 End face be circumferentially welded with four pieces be in rectangle fixed block 123.51 side wall of ring gear coaxially offers recessing groove 511, fixed block 123 are placed in recessing groove 511 close to one end of ring gear 51, due to limiting the axial movement of ring gear 51.Rotate ring gear 51 To make to rotate with the fixed rotating bar 32 of gear 5, the process of rotary motion bar 32 is more convenient.

As shown in Figure 3 and Figure 4, since damper constantly vibrates, ring gear 51 can be made to rotate, to drive rotation Bar 32 generates rotation, causes clamping block 341 that can not be clamped with clamping groove 311, influences the use for adjusting component 3.Therefore ring gear 51 have friction pad 6 towards the end face gluing of end face lid, and end face of the friction pad 6 far from ring gear 51 is abutted with end cap 12.Using rubbing Scrubbing pad 6 increases the frictional force between ring gear 51 and end cap 12, to reduce the rotation amplitude of ring gear 51, makes ring gear 51 rotation is more subtle, reduces and the case where clamping block 341 and clamping groove 311 can not be clamped occurs, increases adjusting group The stability of part 3.

As shown in figure 4, due to increasing the frictional force between ring gear 51 and end cap 12, and 51 surface of ring gear does not have The direct point of application causes the rotary course of ring gear 51 more difficult.Therefore ring gear 51 is welded far from the end face of friction pad 6 There are four abutting bars 52.When needing to rotate ring gear 51, directly make the axis rotation for abutting bar 52 around ring gear 51, rotation There is the point that can directly exert a force when ring gear 51, keeps the rotation of ring gear 51 more convenient.

Working principle:

When work, O-ring 2 closes the gap between 1 inner wall of piston 11 and working cylinder, makes damping oil will not be from piston 11 Gap between 1 inner wall of working cylinder passes through, and increases the damping of damper.In the damping for needing to adjust damper, by card Access slot 311 and clamping block 341 are clamped, and apply the power rotated around the axis of ring gear 51 to rotating bar 32, and ring gear 51 drives It is rotated with the fixed rotating bar 32 of gear 5, to adjust the relative position abutted between block 31 and piston 11, and then the company of having adjusted The flow for connecing the damping oil flowed in hole 111 finally realizes the adjusting of damper damping.

Specific embodiment is only the explanation to the utility model, is not limitations of the present invention, this field Technical staff can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but only It will be in the scope of the claims of the utility model all by the protection of Patent Law.

Claims

1. a kind of damper, including working cylinder (1), working cylinder (1) opening is fixedly connected with end cap (12), the work It is axially slidably connected in cylinder (1) piston (11), the piston (11) is coaxially fixed with piston rod (13), the piston rod (13) Working cylinder (1) is extended to outside across working cylinder (1) end cap (12), it is characterised in that: piston (11) side wall coaxially offers Several annular grooves (112), the annular groove (112) is interior to be arranged with O-ring (2), O-ring (2) lateral wall and working cylinder (1) Inner wall abuts.

2. a kind of damper according to claim 1, it is characterised in that: the piston (11) is connected with adjustment connecting hole (111) the adjusting component (3) of internal damping oil stream amount, adjust component (3) include that be threadedly coupled with piston (11) several support It connects block (31), the abutting block (31) is in a circular table shape and its round table-like inclined-plane is towards connecting hole (111), abut block (31) Minimum diameter is less than the diameter of connecting hole (111), and several axis for abutting block (31) distinguish corresponding connecting hole (111) axis is overlapped, and the side of piston (11) towards the end cap (12) is fixedly connected with bracket (113), the abutting block (31) it is threadedly coupled with bracket (113).

3. a kind of damper according to claim 2, it is characterised in that: the end cap (12), which is run through, offers several turns Dynamic slot (121), adjust component (3) further include several rotating bars (32) with end cap (12) rotation connection, the rotating bar (32) it is inserted in rotation slot (121) and is rotatablely connected with rotation slot (121), rotating bar (32) direction abuts block (31) End face is fixedly connected with polygon clamping block (341), and the end face for abutting block (31) towards rotating bar (32) offers and blocks The clamping groove (311) of block (341) cooperation is connect, the clamping block (341) can be placed in clamping groove (311).

4. a kind of damper according to claim 3, it is characterised in that: the abutting block (31) is fixedly connected with limited block (312), the limited block (312) can abut with the end face of bracket (113) towards piston (11) and it is used for prevents from abutting block (31) it is detached from bracket (113).

5. a kind of damper according to claim 4, it is characterised in that: the rotating bar (32) is socketed with closing rotating bar (32) outside framework oil seal (4) in the gap between rotation slot (121), the outer wall of the outside framework oil seal (4) and rotation slot (121) are interior Wall abuts.

6. a kind of damper according to claim 5, it is characterised in that: the rotating bar (32) has been fixedly and coaxially connected Gear (5), the end cap (12), which rotates coaxially, to be connected with ring gear (51), several gears (5) simultaneously with ring gear (51) Engagement.

7. a kind of damper according to claim 6, it is characterised in that: the ring gear (51) is towards end cap (12) End face is fixedly connected with friction pad (6), and the friction pad (6) abuts with end cap (12).

8. a kind of damper according to claim 7, it is characterised in that: the ring gear (51) is far from end cap (12) End face is circumferentially fixed to be connected with several abutting bars (52).