CN102996700A - Pre-pressure adjustable hydraulic damping shock absorber - Google Patents
Pre-pressure adjustable hydraulic damping shock absorber Download PDFInfo
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- CN102996700A CN102996700A CN2012105192507A CN201210519250A CN102996700A CN 102996700 A CN102996700 A CN 102996700A CN 2012105192507 A CN2012105192507 A CN 2012105192507A CN 201210519250 A CN201210519250 A CN 201210519250A CN 102996700 A CN102996700 A CN 102996700A
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- spring
- urceolus
- gland
- support plate
- traveller
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Abstract
The invention discloses a pre-pressure adjustable hydraulic damping shock absorber which comprises an outer barrel, a sliding column, a damping rod, a long spring, a gland, a support base, a sealing ring and a pre-pressure adjusting mechanism, wherein the pre-pressure adjusting mechanism comprises an adjusting bolt, a locating plate (11) and a spring support plate (12); the upper end of the long spring (5) props against the spring support plate (12), the adjusting bolt (9) passes through the gland (6), and the locating plate (11) props against the spring support plate (12); a threaded connection section is arranged between the adjusting bolt (9) and the gland (6), and the sealing ring (14) is arranged between the threaded connection section and the locating plate (11); and the adjusting bolt (9) is provided with a circumferential locating boss (9a), and the circumferential locating boss (9a) is positioned between the sealing ring (14) and the locating plate (11). Through additionally arranging the pre-pressure adjusting mechanism, the pre-pressure adjustable hydraulic damping shock absorber can meet different vehicle working condition and road condition requirements, and the driving comfort and maneuverability are improved.
Description
Technical field
The present invention relates to damper of vehicle, relate in particular to a kind of hydraulic damping type vibration damper for motorcycle.
Background technique
Motorcycle front damper adopts the hydraulic damping type vibration damper usually, and its connecting structure is comprised of urceolus 1, traveller 2, damper regulation mechanism, gland 6, supporting base 7 and seal ring 8 etc. as shown in Figure 1.The upper end of urceolus 1 is opening end, the lower end of traveller 2 is stretched in the urceolus 1 and is set in together with urceolus 1, opening end at urceolus 1 is provided with oil sealing 3, the left end of traveller 2 is provided with gland 6, gland 6 is threaded togather with traveller 2, between gland 6 and traveller 2, be provided with seal ring 14, make urceolus 1 and the airtight active chamber of traveller 2 interior formation.Be flexibly connected the damper regulation mechanism that consists of by damper rod 4 and long spring 5 and be installed in this active chamber, damper rod 4 is supported in the active chamber by supporting base 7, and the right-hand member of damper rod 4 and urceolus 1 are connected, and the upper end of long spring 5 is against on the gland 6.Be provided with seal ring 8 between damper rod 4 and the long spring 5, be provided with little spring 10 in the first cavity A that is surrounded by seal ring 8 and supporting base 7, the active chamber that is positioned at supporting base 7 belows is the second cavity B, offers damping hole 4a over against the first cavity A on the damper rod 4, over against the pod apertures 4b of the second cavity B.
When being given a shock urceolus 1 and moving upward, the second cavity B inner volume reduces, and liquid is under pressure and flows to damper rod 4 inner chambers by pod apertures 4b, the first cavity A inner volume increases simultaneously, produces negative pressure, by damping hole 4a oil suction, produce resistance to compression pression, and the long spring 5 of compression; Restoring stroke, under the effect of long spring 5 restoring forces, liquid is discharged by damping hole 4a in the first cavity A.The form that damper regulation mechanism adopts hydraulic pressure and spring shock absorption to combine, wherein the degree of adaptability of spring shock absorption and hydraulic shock-absorption has influence on the damping effect of vibration damper integral body.But this vibration damper can only be complementary with the given travel characteristic, vehicle is when using a vibration damper, usually affect damping effect because the variation of road conditions etc. is large, can not satisfy the requirement on vehicle multi-operating mode and road surface, can not satisfy people to the high request of vehicle riding comfort and maneuverability.
Summary of the invention
The present invention is directed to above-mentioned technical problem and improve, aim to provide a kind of vibration damper that can damping adjusting power, with applicable different vehicle operating mode and road conditions requirement, improve driving comfortability and maneuverability.
For solving above technical problem, a kind of precompression adjustable hydraulic damping shock absorber provided by the invention, comprise urceolus, the lower end of traveller is stretched in the urceolus and is set in together with urceolus, opening end at urceolus is provided with oil sealing, the upper end of traveller is provided with gland, make and form airtight active chamber in urceolus and the traveller, the damper regulation mechanism that is made of damper rod and long spring is installed in this active chamber, described damper rod is supported in the active chamber by supporting base, the lower end of damper rod and urceolus bottom are connected, the lower end of described long spring is against the upper end of damper rod, described damper rod is provided with seal ring near an end of long spring, be provided with seal ring between described damper rod and the long spring, be provided with little spring in the first cavity that is surrounded by seal ring and supporting base, the active chamber that is positioned at the supporting base below is the second cavity, offer on the described damper rod over against the damping hole of the first cavity, pod apertures over against the second cavity, key is: the upper end of described traveller is provided with the precompression controlling mechanism, described precompression controlling mechanism comprises adjusting bolt, positioning plate, and spring-support plate, described positioning plate is fixed by screws on the lower end surface of gland, described spring-support plate is arranged between positioning plate and the long spring, and be slidingly connected with described traveller inwall, the upper end of long spring is against on the spring-support plate, described adjusting bolt is passed gland, positioning plate is against on the spring-support plate, be provided with the section of being threaded between adjusting bolt and the gland, between the section of being threaded and positioning plate, be provided with seal ring, be provided with the hoop positioning boss on the described adjusting bolt, described hoop positioning boss is between seal ring and positioning plate, and the external diameter of positioning boss is greater than the bolt through-hole diameter on the positioning plate.
The agent structure of precompression adjustable hydraulic damping shock absorber is consistent with former hydraulic damping type shock absorber structure, but increased adjustable structure at vibration damper, can adjust the precompression of long spring, only need to rotate the adjusting double-screw bolt with simple tool, namely realize the adjustment of pre-pressure of the spring.Regulate the screw thread that mutually matches on double-screw bolt and the gland, when regulating the double-screw bolt back-out, spring-support plate moves under the recuperability of long spring, namely reduced the precompression of long spring, when regulating double-screw bolt and screw out thread root to gland, regulate double-screw bolt and can not rotate, realized the location that makes progress; When regulating double-screw bolt and screw, spring-support plate moves down thereupon, compress long spring, and the precompression of the long spring of increase when moving to the circular orientation step and touch positioning plate, has namely been realized downward location.Regulate the sealing that realizes oil circuit in the double-screw bolt adjustment process with seal ring.
As preferably, be provided with oil-through hole on the described spring-support plate, to avoid between positioning plate and spring-support plate, the forming vacuum oil film.
Beneficial effect: by setting up the precompression controlling mechanism, can regulate the precompression of damper.The user can carry out the precompression adjustment according to vehicle condition and pavement behavior, satisfies the requirement of vehicle multi-operating mode, has effectively satisfied the high request of people to vehicle riding comfort and maneuverability; Its precompression is adjusted to mechanical type and regulates, and fringe cost is low, and reliable operation strengthens the car load damping performance, in the situation that take a sudden turn or run at high speed in various road surface, improves adhesive quality and the Security on wheel and road surface.
Description of drawings
Fig. 1 is the structural representation of former hydraulic damping type vibration damper.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the enlarged view of precompression controlling mechanism among Fig. 2.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
Precompression adjustable hydraulic damping shock absorber as shown in Figure 2 is comprised of urceolus 1, traveller 2, oil sealing 3, damper rod 4, long spring 5, gland 6, supporting base 7, seal ring 8, little spring 10 etc.
The upper end of urceolus 1 is opening end, and the lower end of traveller 2 is stretched in the urceolus 1 and is set in together with urceolus 1, is provided with oil sealing 3 at the opening end of urceolus 1.The upper end of traveller 2 is provided with gland 6, and gland 6 is threaded togather with traveller 2, is provided with seal ring 14 between gland 6 and traveller 2, makes urceolus 1 and the airtight active chamber of traveller 2 interior formation.The damper regulation mechanism that is made of damper rod 4 and long spring 5 is installed in this active chamber, damper rod 4 is supported in the active chamber by supporting base 7, the lower end of damper rod 4 and urceolus 1 bottom are connected, the lower end of long spring is against the upper end of damper rod, damper rod 4 is provided with seal ring 8 near an end of long spring 5, be provided with little spring 10 in the first cavity A that is surrounded by seal ring 8 and supporting base 7, the active chamber that is positioned at supporting base 7 belows is the second cavity B.Offer damping hole 4a over against the first cavity A on the damper rod 4, over against the pod apertures 4b of the second cavity B.The lower end of urceolus 1 is provided with mounting hole 1a, as the tie point of vibration damper with the outside.The above is consistent with traditional hydraulic damper structure, does not repeat them here.
Difference is: as shown in Figure 3, the upper end of traveller 2 is provided with the precompression controlling mechanism, and the precompression controlling mechanism is comprised of adjusting bolt 9, positioning plate 11, spring-support plate 12, screw 13 and seal ring 14.Positioning plate 11 is fixed on the lower end surface of gland 6 by screw 13.Spring-support plate 12 is arranged between positioning plate 11 and the long spring 5, and is slidingly connected with traveller 2 inwalls, and the upper end of long spring 5 is against on the spring-support plate 12.Adjusting bolt 9 is passed gland 6, positioning plate 11 is against on the spring-support plate 12, be provided with the section of being threaded between adjusting bolt 9 and the gland 6, between the section of being threaded and positioning plate 11, be provided with seal ring 14, be provided with hoop positioning boss 9a on the adjusting bolt 9, hoop positioning boss 9a is between seal ring 14 and positioning plate 11, and the external diameter of positioning boss 9a is greater than the bolt through-hole diameter 11a on the positioning plate 11.
As preferably, be provided with oil-through hole 12a on the spring-support plate 12.
Working procedure: when being given a shock urceolus 1 and moving upward, the second cavity B inner volume reduces, and liquid is under pressure and flows to damper rod 4 inner chambers by pod apertures 4b, the first cavity A inner volume increases simultaneously, produces negative pressure, by damping hole 4a oil suction, produce resistance to compression pression, and the long spring 5 of compression; Restoring stroke, under the effect of long spring 5 restoring forces, liquid is discharged by damping hole 4a in the first cavity A.
When regulating double-screw bolt 9 and screw out, spring-support plate 12 moves under the recuperability of long spring 5, has namely reduced the precompression of long spring 5, and when regulating double-screw bolt 9 and screw out thread root to gland 6, adjusting double-screw bolt 9 can not rotate, and has realized the location that makes progress; When regulating double-screw bolt 9 and screw, spring-support plate 12 moves down thereupon, compresses long spring 5, increases the precompression of long spring 5, when moving to circular orientation step 9a and touch positioning plate 11, has namely realized downward location.Regulate the sealing that realizes oil circuit in double-screw bolt 9 adjustment processes with seal ring 14.
Claims (2)
1. precompression adjustable hydraulic damping shock absorber, comprise urceolus (1), the lower end of traveller (2) is stretched in the urceolus (1) and is set in together with urceolus (1), opening end at urceolus (1) is provided with oil sealing (3), the upper end of traveller (2) is provided with gland (6), make and form airtight active chamber in urceolus (1) and the traveller (2), the damper regulation mechanism that is made of damper rod (4) and long spring (5) is installed in this active chamber, described damper rod (4) is supported in the active chamber by supporting base (7), the lower end of described damper rod (4) and urceolus (1) bottom are connected, the lower end of described long spring (5) is against the upper end of damper rod (4), described damper rod (4) is provided with seal ring (8) near an end of long spring (5), be provided with little spring (10) in the first cavity (A) that is surrounded by seal ring (8) and supporting base (7), the active chamber that is positioned at supporting base (7) below is the second cavity (B), offer the damping hole (4a) over against the first cavity (A) on the described damper rod (4), pod apertures (4b) over against the second cavity (B), it is characterized in that: the upper end of described traveller (2) is provided with the precompression controlling mechanism, described precompression controlling mechanism comprises adjusting bolt (9), positioning plate (11) and spring-support plate (12), described positioning plate (11) is fixed on the lower end surface of gland (6) by screw (13), described spring-support plate (12) is arranged between positioning plate (11) and the long spring (5), and be slidingly connected with described traveller (2) inwall, the upper end of long spring (5) is against spring-support plate (12) lower end, described adjusting bolt (9) is passed gland (6), positioning plate (11) is against spring-support plate (12) upper end, be provided with the section of being threaded between adjusting bolt (9) and the gland (6), between the section of being threaded and positioning plate (11), be provided with seal ring (14), be provided with hoop positioning boss (9a) on the described adjusting bolt (9), described hoop positioning boss (9a) is positioned between seal ring (14) and the positioning plate (11), and the external diameter of positioning boss (9a) is greater than the bolt through-hole diameter (11a) on the positioning plate (11).
2. according to precompression adjustable hydraulic damping shock absorber claimed in claim 1, it is characterized in that: be provided with oil-through hole (12a) on the described spring-support plate (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105192507A CN102996700A (en) | 2012-12-06 | 2012-12-06 | Pre-pressure adjustable hydraulic damping shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105192507A CN102996700A (en) | 2012-12-06 | 2012-12-06 | Pre-pressure adjustable hydraulic damping shock absorber |
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| Publication Number | Publication Date |
|---|---|
| CN102996700A true CN102996700A (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105192507A Pending CN102996700A (en) | 2012-12-06 | 2012-12-06 | Pre-pressure adjustable hydraulic damping shock absorber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481904A (en) * | 2013-09-25 | 2014-01-01 | 吴江骏达电梯部件有限公司 | Elasticity modulus adjustable vehicle hanging buffer structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07257468A (en) * | 1994-03-18 | 1995-10-09 | Kayaba Ind Co Ltd | Vehicle height adjusting device of front fork for motorcycle |
| JPH0882337A (en) * | 1994-09-09 | 1996-03-26 | Showa:Kk | Vehicle height adjusting mechanism for front fork |
| JP2003184931A (en) * | 2001-12-21 | 2003-07-03 | Kayaba Ind Co Ltd | Hydraulic shock absorber |
| CN2661561Y (en) * | 2003-11-11 | 2004-12-08 | 重庆宗申技术开发研究有限公司 | Adjustable front absorber of motorcycle |
| CN200946642Y (en) * | 2006-04-10 | 2007-09-12 | 江苏明星减震器有限公司 | Front damper capable of adjusting prestress of damping spring |
| CN201368169Y (en) * | 2009-03-27 | 2009-12-23 | 江苏振龙减震器有限公司 | Motorbike front shock absorber with adjustable damping and hardness |
-
2012
- 2012-12-06 CN CN2012105192507A patent/CN102996700A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07257468A (en) * | 1994-03-18 | 1995-10-09 | Kayaba Ind Co Ltd | Vehicle height adjusting device of front fork for motorcycle |
| JPH0882337A (en) * | 1994-09-09 | 1996-03-26 | Showa:Kk | Vehicle height adjusting mechanism for front fork |
| JP2003184931A (en) * | 2001-12-21 | 2003-07-03 | Kayaba Ind Co Ltd | Hydraulic shock absorber |
| CN2661561Y (en) * | 2003-11-11 | 2004-12-08 | 重庆宗申技术开发研究有限公司 | Adjustable front absorber of motorcycle |
| CN200946642Y (en) * | 2006-04-10 | 2007-09-12 | 江苏明星减震器有限公司 | Front damper capable of adjusting prestress of damping spring |
| CN201368169Y (en) * | 2009-03-27 | 2009-12-23 | 江苏振龙减震器有限公司 | Motorbike front shock absorber with adjustable damping and hardness |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481904A (en) * | 2013-09-25 | 2014-01-01 | 吴江骏达电梯部件有限公司 | Elasticity modulus adjustable vehicle hanging buffer structure |
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Application publication date: 20130327 |