CN204253717U - Buffer-oriented type vibration damper - Google Patents
Buffer-oriented type vibration damper Download PDFInfo
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- CN204253717U CN204253717U CN201420709348.3U CN201420709348U CN204253717U CN 204253717 U CN204253717 U CN 204253717U CN 201420709348 U CN201420709348 U CN 201420709348U CN 204253717 U CN204253717 U CN 204253717U
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- piston rod
- vibration damper
- buffer
- piston
- type vibration
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Abstract
The utility model discloses a kind of buffer-oriented type vibration damper, comprise damping spring and damper assembly, damper assembly comprises damping cylinder and piston assembly, piston assembly comprises piston and piston rod, damping spring is coated at piston rod, in the middle part of piston rod between damping spring and piston rod, overcoat has guide sleeve, and guide sleeve is axial limiting on the piston rod; The utility model adopts the structure arranging guide sleeve at the middle part of piston rod; and in the middle part of this just spring be easy to the position of the distortion departing from center line; the collision between spring and piston rod and friction can be avoided during use; be beneficial to protection piston rod and spring; ensure the smoothness of relative movement therebetween; reduce shock absorber noise, improve travelling comfort and stationarity.
Description
Technical field
The utility model relates to a kind of automotive component, particularly a kind of buffer-oriented type vibration damper.
Background technique
Vibration damper is the necessary parts of motor vehicle, handling, the travelling comfort of structure influence car load, performance whether reliable and stable, is directly connected to the safe and reliable of car load, travelling comfort and handling.Existing vibration damper generally comprises damper assembly and damping spring; For the vibration damper of this structure, more is applied independently in motorcycle, and when for front shock absorber, entirety is longer, and damping spring is that column spring overcoat is in piston rod; Due to longer, column spring can depart from the situation of center line, causes the collision between piston rod and spring and friction, cause spring and piston rod impaired, impact normally use; Further, larger noise can be sent, affect the use of motorcycle, reduce the travelling comfort and Security that use.
Therefore, need a kind of vibration damper, the collision between spring and piston rod and friction during use, can be avoided, be beneficial to protection piston rod and spring, ensure the smoothness of relative movement therebetween, reduce shock absorber noise, improve travelling comfort and stationarity.
Model utility content
In view of this, the utility model provides a kind of buffer-oriented type vibration damper, can avoid the collision between spring and piston rod and friction during use; be beneficial to protection piston rod and spring; ensure the smoothness of relative movement therebetween, reduce shock absorber noise, improve travelling comfort and stationarity.
Buffer-oriented type vibration damper of the present utility model, comprise damping spring and damper assembly, described damper assembly comprises damping cylinder and piston assembly, described piston assembly comprises piston and piston rod, damping spring can be coated at piston rod, also can be coated at piston rod and damping cylinder, not repeat them here; Be positioned at overcoat in the middle part of piston rod and have guide sleeve, guide sleeve is axial limiting on the piston rod; The mode of axial limiting can adopt two ends as shown in the figure to arrange the limit structure of the machineries such as the mode of catch; Guide sleeve generally adopts the material softer than spring, such as plastics or nylon etc., avoids spring works process to rub with piston rod by bending producing the wearing and tearing that abnormal sound affects performance or causes piston rod and spring, makes whole working procedure more smooth and easy; During actual use, the length of guide sleeve should not be shorter than 1/3rd of piston rod.
Further, on stopper rod, at least axis is outwards spacing while still alive arranges hydraulic cushion part, and the setting position of hydraulic cushion part makes the piston of piston assembly prevent at the bottom of rigid touch at end of travel, hydraulic cushion part axial limiting on the piston rod; Working stroke end refers to the final stroke of piston at damping cylinder least significant end and spring-compressed, at working stroke tip designs hydraulic damping buffer structure, the gradual increase of compression damping power can be made, there will not be the undesirable conditions such as the stiff tactile end when ensureing forward stroke limit situation, ensure that travelling comfort, working procedure more safety and stability is reliable.
Further, described damping spring is provided with the adjusting nut for regulating its pretightening force, the inner core of vibration damper is fixedly connected on shock-absorber cylinder and is placed on urceolus in axial slidably cooperation, urceolus or spring seat to extenal fixation at least axial with urceolus are withstood in described damping spring upper end, and the thread bush of adjusting nut screw-thread fit axial restraint on piston rod or piston rod also withstands urceolus or the extremity piece fixing with urceolus downwards; Can absorber spring be regulated according to demand at any time to preload by adjusting nut, and can set scale, adjustment has standardization.
Further, guide sleeve is that plastics or nylon are made, and cost is lower and easily make, and has good convertibility.
Further, guide sleeve is longitudinally the little structure in two broad in the middle; Be adapted to the distortion of spring, smooth contact occurs during use, reduce further to impact.
Further; guide sleeve is at circumferencial direction and column distribution arranges cannelure; this cannelure makes the cross section of guide sleeve be the tooth-shape structure of spline type structure or smooth excessiveness; this structure makes guide sleeve save finished material; reduce rubbing contact area; there is good guide effect, be beneficial to protect guide sleeve not occur to wear and tear faster and effectively lead and avoid the bending rear hydraulic performance decline of damping spring.
Further, hydraulic cushion part is cushion collar structure, and this cushion collar structure is to the diminishing taper of end face near the end of damping cylinder; Be applicable to increase gradually reaction force contact, ensure cushioning effect, improve vibration damper touch the end before travelling comfort.
Further, hydraulic cushion part is arranged at piston rod by inner sleeve, and described inner sleeve is T-shaped cover, and the catch of the major part that hydraulic cushion part is overlapped by this T-shaped and T-shaped cover cylindrical realizes axial limiting, makes buffering course be divided into two-stage, increases cushioning effect.
Further, described shock-absorber cylinder is forging, adopts and be threaded between this shock-absorber cylinder with inner core; General anaerobic adhesive of smearing at screw thread place prevents rotation from loosening, and designs simultaneously and only locks screw, prevent inner core from screwing further loosening, ensure this reliability assembled.
The beneficial effects of the utility model: buffer-oriented type vibration damper of the present utility model; adopt the structure that guide sleeve is set at the middle part of piston rod; and in the middle part of this just spring be easy to the position of the distortion departing from center line; the collision between spring and piston rod and friction can be avoided during use; be beneficial to protection piston rod and spring; ensure the smoothness of relative movement therebetween, reduce shock absorber noise, improve travelling comfort and stationarity.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is Figure 1A place enlarged view.
Embodiment
Fig. 1 is structural representation of the present utility model, Fig. 2 is Figure 1A place enlarged view, as shown in the figure: the buffer-oriented type vibration damper of the present embodiment, comprise damping spring 11 and damper assembly, described damper assembly comprises damping cylinder 12 and piston assembly, and described piston assembly comprises piston and piston rod 5, and damping spring 11 can be coated at piston rod 5, also can be coated at piston rod 5 and damping cylinder 12, not repeat them here; Be positioned at overcoat in the middle part of piston rod and have guide sleeve 4, be namely placed on the exposed parts of piston rod 5; Guide sleeve 4 is axial limiting on piston rod 5; The mode of axial limiting can adopt two ends as shown in the figure to arrange the limit structure of the machineries such as the mode of catch; Guide sleeve generally adopts the material softer than spring, such as plastics or nylon etc., avoids spring works process to rub with piston rod by bending producing the wearing and tearing that abnormal sound affects performance or causes piston rod and spring, makes whole working procedure more smooth and easy; During actual use, the length of guide sleeve should not be shorter than 1/3rd of piston rod, is easy to form the general protection to piston rod, spring, avoids contact and has enough buffer lengths.
In the present embodiment, on piston rod 5, at least axis is outwards spacing arranges hydraulic cushion part 3, the setting position of hydraulic cushion part 3 makes the piston of piston assembly prevent at the bottom of rigid touch at end of travel, axially outwards refer to outside relative to damping cylinder, being generally used for vibration damper refers to upwards, namely can realize goal of the invention to upper limit, can certainly be fixedly installed; The setting position of hydraulic cushion part 3 enables the piston of piston assembly prevent from referring at the bottom of rigid touch at end of travel: hydraulic cushion part 3 position on the piston rod makes hydraulic cushion part 3 contact damping cylinder end cap before piston touches the end, prevents piston from continuing at a high speed downwards; Working stroke end refers to the final stroke of piston at damping cylinder least significant end and spring-compressed, at working stroke tip designs hydraulic damping buffer structure, the gradual increase of compression damping power can be made, there will not be the undesirable conditions such as the stiff tactile end when ensureing forward stroke limit situation, ensure that travelling comfort, working procedure more safety and stability is reliable.
In the present embodiment, described damping spring 11 is provided with the adjusting nut 9 for regulating its pretightening force, the inner core 13 of vibration damper is fixedly connected on shock-absorber cylinder 10 and is placed on urceolus 1 in axial slidably cooperation, urceolus 1 or spring seat 6 to extenal fixation at least axial with urceolus are withstood in described damping spring 11 upper end, as shown in the figure, piston rod overcoat has spring seat 6, and spring seat withstands on the cover that is fixedly connected with urceolus 1 by a power transmission cylinder 7; The thread bush 8 of adjusting nut 9 screw-thread fit axial restraint on piston rod 5 or piston rod 5 also withstands urceolus or the extremity piece (cover) fixing with urceolus downwards, as shown in the figure, piston rod 5 is fixed with thread bush 8, described adjusting nut 9 screw-thread fit is arranged at thread bush 8 and withstands the extremity piece (cover) fixing with urceolus, adjusts at any time; Can absorber spring be regulated according to demand at any time to preload by adjusting nut 9, and can set scale, adjustment has standardization.
In the present embodiment, guide sleeve 4 is made for plastics or nylon, and cost is lower and easily make, and have good convertibility, meanwhile, plastics or nylon have certain hardness and toughness, has certain self-lubricating function, alleviate friction damage for collision.
In the present embodiment, guide sleeve 4 is longitudinally the little structure in two broad in the middle; Be adapted to the distortion of damping spring, smooth contact occurs during use, reduce further to impact.
In the present embodiment, guide sleeve 4 is at circumferencial direction and column distribution arranges cannelure, this cannelure makes the cross section of guide sleeve be the tooth-shape structure of spline type structure or smooth excessiveness, guide sleeve is made to save finished material, reduce rubbing contact area, guide sleeve cylindrical is made to reduce hardness and impact force, first soft rear order just during impact, to the distortion collision of spring, there is effective buffering, simultaneously, there is good guide effect, be beneficial to protection guide sleeve not occur to wear and tear faster, clash into inefficacy and effectively lead and avoid the bending rear hydraulic performance decline of damping spring, be beneficial to and keep good damping precision,
In the present embodiment, hydraulic cushion part 3 cushion collar structure, this cushion collar structure is to the diminishing taper of end face near the end of damping cylinder; When carrying out slowly before piston touches the end, the little end surface first contact damping cylinder end cap of taper, is formed by the contact of the little reaction force increased gradually, ensures cushioning effect, and raising vibration damper touches the travelling comfort at the end.
In the present embodiment, hydraulic cushion part 3 is arranged at piston rod 5 by inner sleeve 2, described inner sleeve 2 is T-shaped cover, the catch of the major part that hydraulic cushion part 3 is overlapped by this T-shaped and T-shaped cover cylindrical realizes axial limiting, carry out in buffering course, make buffering course be divided into hydraulic cushion part and T-shaped cover two-stage, increase cushioning effect; Certainly, T-shaped cover major part in the one end being away from damping cylinder, to form the buffer stop to hydraulic cushion part; As shown in the figure, hydraulic cushion part is arranged at piston rod by inner sleeve 2, and two ends realize axial limiting; As shown in the figure, inner sleeve 2 is T-shaped cover, the catch of the major part that hydraulic cushion part 3 is overlapped by this T-shaped and T-shaped cover cylindrical realizes axial limiting, T-shaped overlaps one end and guide sleeve 4 shares spacing catch, the other end is spacing by independent spacing catch, make hydraulic cushion part 3 be arranged at the end of guide sleeve, guide sleeve has certain support effect to hydraulic cushion part and does not repeat them here.
In the present embodiment, described shock-absorber cylinder 10 is forging, adopts and be threaded between this shock-absorber cylinder 10 with inner core 13; General anaerobic adhesive of smearing at screw thread place prevents rotation from loosening, and designs simultaneously and only locks screw, prevent inner core from screwing further loosening, ensure this reliability assembled.
In the utility model, adopt rational sealing configuration as required in the connection of various parts, such as o type circle or sealing gasket etc., do not repeat them here; In the utility model, outward appearance aspect, the uniform spiral lines of urceolus, surface adopts anodizing, and appearance luster is vivid, and texture is strong, and Corrosion Protection is reliable and stable; Meanwhile, load segment requirement retrofit is pulled to steering column up and down, control surface roughness, convenient for assembly and to ensure that itself and steering column are won in succession and assembled reliable and stable, thus effectively ensure the parallel of left and right vibration damper, avoid the phenomenon of vibration damper work eccentric wear clamping stagnation.
The utility model independently uses the front shock absorber being applicable to three-wheel, two-wheeled motor vehicle.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (9)
1. a buffer-oriented type vibration damper, comprise damping spring and damper assembly, described damper assembly comprises damping cylinder and piston assembly, and described piston assembly comprises piston and piston rod, it is characterized in that: being positioned at overcoat in the middle part of piston rod has guide sleeve, and guide sleeve is axial limiting on the piston rod.
2. buffer-oriented type vibration damper according to claim 1, it is characterized in that: on piston rod, at least axis is outwards spacing arranges hydraulic cushion part, the setting position of hydraulic cushion part makes the piston of piston assembly prevent at the bottom of rigid touch at end of travel, hydraulic cushion part axial limiting on the piston rod.
3. buffer-oriented type vibration damper according to claim 1, it is characterized in that: described damping spring is provided with the adjusting nut for regulating its pretightening force, the inner core of vibration damper is fixedly connected on shock-absorber cylinder and is placed on urceolus in axial slidably cooperation, urceolus or spring seat to extenal fixation at least axial with urceolus are withstood in described damping spring upper end, and the thread bush of adjusting nut screw-thread fit axial restraint on piston rod or piston rod also withstands urceolus or the extremity piece fixing with urceolus downwards.
4. buffer-oriented type vibration damper according to claim 1, is characterized in that: guide sleeve is that plastics or nylon are made.
5. buffer-oriented type vibration damper according to claim 1, is characterized in that: guide sleeve is longitudinally the little structure in two broad in the middle.
6. buffer-oriented type vibration damper according to claim 1, is characterized in that: guide sleeve is at circumferencial direction and column distribution arranges cannelure.
7. buffer-oriented type vibration damper according to claim 2, is characterized in that: hydraulic cushion part is cushion collar structure, and this cushion collar structure is to the diminishing taper of end face near the end of damping cylinder.
8. buffer-oriented type vibration damper according to claim 7, is characterized in that: hydraulic cushion part is arranged at piston rod by inner sleeve, and described inner sleeve is T-shaped cover, and the catch of the major part that hydraulic cushion part is overlapped by this T-shaped and T-shaped cover cylindrical realizes axial limiting.
9. buffer-oriented type vibration damper according to claim 3, is characterized in that: described shock-absorber cylinder is forging, adopts and be threaded between this shock-absorber cylinder with inner core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709348.3U CN204253717U (en) | 2014-11-21 | 2014-11-21 | Buffer-oriented type vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709348.3U CN204253717U (en) | 2014-11-21 | 2014-11-21 | Buffer-oriented type vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253717U true CN204253717U (en) | 2015-04-08 |
Family
ID=52958026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420709348.3U Expired - Fee Related CN204253717U (en) | 2014-11-21 | 2014-11-21 | Buffer-oriented type vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113767759A (en) * | 2021-09-12 | 2021-12-10 | 黑龙江华垦农业机械有限公司 | Multifunctional agricultural machine with front and rear carriage for paddy field and dry field |
-
2014
- 2014-11-21 CN CN201420709348.3U patent/CN204253717U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113767759A (en) * | 2021-09-12 | 2021-12-10 | 黑龙江华垦农业机械有限公司 | Multifunctional agricultural machine with front and rear carriage for paddy field and dry field |
| CN113767759B (en) * | 2021-09-12 | 2022-06-17 | 黑龙江华垦农业机械有限公司 | Multifunctional agricultural machine with front and rear carriage for paddy field and dry field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20151121 |
|
| EXPY | Termination of patent right or utility model |