CN104565173A - Isolation guiding device for shock absorption - Google Patents
Isolation guiding device for shock absorption Download PDFInfo
- Publication number
- CN104565173A CN104565173A CN201410676807.7A CN201410676807A CN104565173A CN 104565173 A CN104565173 A CN 104565173A CN 201410676807 A CN201410676807 A CN 201410676807A CN 104565173 A CN104565173 A CN 104565173A
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- CN
- China
- Prior art keywords
- guiding device
- guide sleeve
- damping
- isolation guiding
- piston rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/366—Special sealings, including sealings or guides for piston-rods functioning as guide only, e.g. bushings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses an isolation guiding device for shock absorption. The isolation guiding device comprises a guide sleeve, wherein the guide sleeve sleeves the middle of a piston rod of a shock absorber. According to the isolation guiding device, a guide sleeve structure is adopted and is arranged at the middle of the piston rod when used, and the middle is a deformed part, which easily deviates from a center line, of a spring; when the isolation guiding device is used, collision and friction between the spring and the piston rod are avoided, the piston rod and the spring are well protected, the smoothness of relative movement between the piston rod and the spring is ensured, noises of the shock absorber are reduced, and the comfort and the stability are improved.
Description
Technical field
The present invention relates to a kind of motor vehicle damper parts, particularly a kind of damping isolation guiding device.
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 the column spring being coated at piston rod; For motorcycle, front shock absorber is due to overall and formed longer, and 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 uses; Due to disalignment, the uneven change of the elastic force of spring can be made, affect the damping effect of vibration damper, also can send larger noise, affect the use of motorcycle, reduce the travelling comfort and Security that use.
Therefore, need to improve existing 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.
Summary of the invention
In view of this; the invention provides a kind of damping isolation guiding device; be applied to vibration damper; 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.
Damping isolation guiding device of the present invention, comprises the guide sleeve in the middle part of the piston rod for being enclosed within vibration damper; Guide sleeve generally adopts the material softer than spring material, 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.
Further, also comprise at least axial outwards spacing hydraulic cushion part being arranged at piston rod, the setting position of hydraulic cushion part makes the piston of piston assembly prevent at the bottom of rigid touch at end of travel; 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, guide sleeve is that plastics or nylon are made; 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.
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; 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 and protect guide sleeve not occur to wear and tear faster, clash into lose efficacy and effectively led and avoid the bending rear hydraulic performance decline of damping spring, be beneficial to and keep good damping precision.
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; 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.
Further, hydraulic cushion part is coated at an 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 on interior cover; 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.
Further, described cannelure makes the cross section of guide sleeve form the tooth type structures of tooth top and the equal rounding off of tooth root, generally adopts arc transition, is easy to processing; Be beneficial to reduction stress to concentrate, there is when camber of spring clashes into the opposing of higher toughness, meanwhile, also comparatively submissive to the reaction force of spring, avoid concentrating effect.
Further, described hydraulic cushion part is coaxially arranged at the end of guide sleeve, and guide sleeve has certain support effect to hydraulic cushion part.
Further, the length of described guide sleeve is more than or equal to 1/3rd of piston rod, is easy to form the general protection to piston rod, spring, avoids contact and has enough buffer lengths.
Beneficial effect of the present invention: damping isolation guiding device of the present invention; adopt the structure of guide sleeve; the middle part of piston rod is arranged on during use; 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 invention will be further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is Figure 1A place enlarged view.
Embodiment
Fig. 1 is structural representation of the present invention, and Fig. 2 is Figure 1A place enlarged view, as shown in the figure: the damping isolation guiding device of the present embodiment, comprises the guide sleeve 1 in the middle part of the piston rod 1 for being enclosed within vibration damper; Guide sleeve 1 generally adopts the material than spring 5 material softer, such as plastics or nylon etc., avoids spring 5 working procedure to rub with piston rod 1 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.
In the present embodiment, also comprise at least axial outwards spacing hydraulic cushion part 3 being arranged at piston rod 1, 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 and referring 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: the position of hydraulic cushion part 3 on piston rod 1 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 that piston compresses in damping cylinder 6 least significant end and spring 5, 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, guide sleeve 4 is made for plastics or nylon; 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 spring 5, 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 41; This cannelure 41 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 and protect guide sleeve not occur to wear and tear faster, clash into lose efficacy and effectively led 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 is cushion collar structure, and this cushion collar structure is to the diminishing taper of end face near the end of damping cylinder 6; 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 coated at an inner sleeve, and described inner sleeve is T-shaped cover 2, and hydraulic cushion part 3 realizes axial limiting on interior cover by the major part of this T-shaped cover 2 and the catch of T-shaped cover cylindrical; Carry out in buffering course, make buffering course be divided into hydraulic cushion part 3 and T-shaped to overlap 2 two-stages, increase cushioning effect; Certainly, T-shaped cover major part in the one end being away from damping cylinder 6, to form the buffer stop to hydraulic cushion part.
In the present embodiment, described cannelure 41 makes the cross section of guide sleeve 4 form the tooth type structures of tooth top and the equal rounding off of tooth root, generally adopts arc transition, is easy to processing; Be beneficial to reduction stress to concentrate, there is when camber of spring clashes into the opposing of higher toughness, meanwhile, also comparatively submissive to the reaction force of spring, avoid concentrating effect.
In the present embodiment, described hydraulic cushion part 3 is coaxially arranged at the end of guide sleeve 4, and guide sleeve 4 pairs of hydraulic cushion parts 3 have certain support effect.
In the present embodiment, the length of described guide sleeve 4 is more than or equal to 1/3rd of piston rod 1, is easy to form the general protection to piston rod, spring, avoids contact and has enough buffer lengths.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. a damping isolation guiding device, is characterized in that: comprise the guide sleeve in the middle part of the piston rod for being enclosed within vibration damper.
2. damping isolation guiding device according to claim 1, it is characterized in that: also comprise at least axial outwards spacing hydraulic cushion part being arranged at piston rod, the setting position of hydraulic cushion part makes the piston of piston assembly prevent at the bottom of rigid touch at end of travel.
3. damping isolation guiding device according to claim 1, is characterized in that: guide sleeve is that plastics or nylon are made.
4. damping according to claim 1 isolation guiding device, is characterized in that: guide sleeve is longitudinally structure that two broad in the middle is little.
5. damping isolation guiding device according to claim 1, is characterized in that: guide sleeve is at circumferencial direction and column distribution arranges cannelure.
6. damping isolation guiding device according to claim 2, it is characterized in that: hydraulic cushion part is cushion collar structure, this cushion collar structure is to the diminishing taper of end face near the end of damping cylinder.
7. damping according to claim 6 isolation guiding device, it is characterized in that: hydraulic cushion part is coated at an inner sleeve, 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 on interior cover.
8. damping isolation guiding device according to claim 5, is characterized in that: described cannelure makes the cross section of guide sleeve form the tooth type structures of tooth top and the equal rounding off of tooth root.
9. damping isolation guiding device according to claim 2, is characterized in that: described hydraulic cushion part is coaxially arranged at the end of guide sleeve.
10. damping isolation guiding device according to claim 1, is characterized in that: the length of described guide sleeve is more than or equal to 1/3rd of piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410676807.7A CN104565173B (en) | 2014-11-21 | 2014-11-21 | Damping isolation guider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410676807.7A CN104565173B (en) | 2014-11-21 | 2014-11-21 | Damping isolation guider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104565173A true CN104565173A (en) | 2015-04-29 |
| CN104565173B CN104565173B (en) | 2018-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410676807.7A Active CN104565173B (en) | 2014-11-21 | 2014-11-21 | Damping isolation guider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104565173B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005282585A (en) * | 2004-03-26 | 2005-10-13 | Honda Motor Co Ltd | Cushion unit of vehicle |
| CN102562930A (en) * | 2012-03-09 | 2012-07-11 | 四川川南减震器集团有限公司 | Hydraulic damping device |
| EP2511564A2 (en) * | 2011-04-13 | 2012-10-17 | KTM Sportmotorcycle AG | Device and method for guiding a wheel of a vehicle |
| CN103523142A (en) * | 2013-11-04 | 2014-01-22 | 四川川南减震器集团有限公司 | Upside-down motorcycle front shock absorber |
| CN203926563U (en) * | 2014-04-29 | 2014-11-05 | 台州齐力减震器有限公司 | A kind of motorcycle vibration absorber |
| CN204284295U (en) * | 2014-11-21 | 2015-04-22 | 重庆隆鑫发动机有限公司 | For the buffer-oriented part of vibration damper |
-
2014
- 2014-11-21 CN CN201410676807.7A patent/CN104565173B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005282585A (en) * | 2004-03-26 | 2005-10-13 | Honda Motor Co Ltd | Cushion unit of vehicle |
| EP2511564A2 (en) * | 2011-04-13 | 2012-10-17 | KTM Sportmotorcycle AG | Device and method for guiding a wheel of a vehicle |
| CN102562930A (en) * | 2012-03-09 | 2012-07-11 | 四川川南减震器集团有限公司 | Hydraulic damping device |
| CN103523142A (en) * | 2013-11-04 | 2014-01-22 | 四川川南减震器集团有限公司 | Upside-down motorcycle front shock absorber |
| CN203926563U (en) * | 2014-04-29 | 2014-11-05 | 台州齐力减震器有限公司 | A kind of motorcycle vibration absorber |
| CN204284295U (en) * | 2014-11-21 | 2015-04-22 | 重庆隆鑫发动机有限公司 | For the buffer-oriented part of vibration damper |
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| Publication number | Publication date |
|---|---|
| CN104565173B (en) | 2018-02-16 |
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