CN1269684C - Damper after changing damp - Google Patents
Damper after changing damp Download PDFInfo
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- CN1269684C CN1269684C CN 200310112836 CN200310112836A CN1269684C CN 1269684 C CN1269684 C CN 1269684C CN 200310112836 CN200310112836 CN 200310112836 CN 200310112836 A CN200310112836 A CN 200310112836A CN 1269684 C CN1269684 C CN 1269684C
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- oil
- piston
- compression
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Abstract
The present invention relates to a damping-changed rear shock damper which comprises a lower connector, a buffer pad, a damping spring, a spring seat, a damping device and an upper connector, wherein the damping device is composed of a piston rod, an oil cylinder, a guiding assembly, a buffer spring and a piston assembly. The piston is provided with a compressing and damping oil channel and a restoring and damping flowing channel; the piston and a damping core sleeve are respectively connected with both sides of a valve seat, and an oil hole on the damping core sleeve is communicated with an oil hole on the valve seat; a compressing and damping valve sheet for controlling the compressing and damping oil channel and a damping restoring valve sheet for controlling the restoring and damping flow channel are arranged between the piston and the valve seat. A damping seat on the upper connector has a damping shaft which can extend into the cavity of the oil cylinder. When the damping shaft is compressed, the damping shaft extends into the oil hole of the damping core sleeve and the hole of the piston rod. A variable compressing damping can be formed until the compressing damping reaches the maximum by reducing the oil flow quantity of the unit section. The service life of the shock damper and the riding comfort can be obviously improved by the variable compressing damping to prevent the shock damper from impacting with the bottom when a motorcycle is heavily loaded or impacted strongly.
Description
Technical field
The present invention relates to a kind of bumper of self-propelled vehicle, especially relate to a kind of change damping rear shock absorber of motor bike.
Background technology
Motor bike when trailing wheel runs into the obstacle impact, absorbs and the attenuate shock vibrations by rear shock absorber, to improve comfort of drivers and passengers in the process of moving.Liquid damper behind the tradition motor bike is decay a impact endurance test shock in the vehicle ' process of resistance that elastic buffer and oil cylinder inner fluid by damping spring are produced.This traditional liquid damper, on the one hand bumper easily causes bumper to hit the end in heavy duty or when being subjected to exterior intense impact, the traveling comfort driven of influence not only, but also easily bumper is caused damage.On the other hand, because of in-oil cylinder fluid and gas for loading in mixture, can produce the emulsion of fluid in the use, therefore seriously influenced the serviceability of bumper.Be to solve the emulsion of bumper fluid, present a kind of rear shock absorber is that the air bag by independent closed solves the problem that oil gas loads in mixture, to improve the serviceability of bumper.But this bumper still can't solve in heavy duty or when being subjected to outside intense impact, causes bumper to hit the phenomenon at the end.
Summary of the invention
The present invention overcomes above-mentioned weak point, and a kind of change damping rear shock absorber is provided, and when motor bike is in heavy duty or is subjected to exterior intense impact, prevents that by the compression damping that changes bumper from hitting the end, improves the traveling comfort of bumper service life and driving.
The technical scheme that the present invention will solve the problems of the technologies described above is: a kind of change damping rear shock absorber, comprise attaching parts down, cushion rubber, damping spring, spring perch, damping arrangement and upper connector, damping arrangement is made of piston rod, oil cylinder, guidance set, recoil spring, spring perch and piston component; Wherein, described guidance set is by seal cover cap, oil sealing and orienting sleeve constitute, described piston component is by piston, valve seat and compression damping valve block, valve block spring and recovery damper valve plate constitute, described recoil spring is arranged between orienting sleeve and the piston, it is characterized in that: described piston is provided with the compression damping oil duct and restores damping flow channel, piston and damping core retainer plate are connected to the both sides of valve seat, the oilhole of damping core retainer plate communicates with oilhole on the valve seat, be provided with the compression damping valve block of control compression damping oil duct between piston and the valve seat, also be provided with the recovery damper valve plate that damping flow channel is restored in control between piston and the valve seat; Upper connector also has the damping seat, the damping seat has the damping axle that extends in the oil cylinder cavity, damping shaft extension during compression is to the hole of the oilhole of damping core retainer plate and piston rod, reduce the oilhole of damping core retainer plate and the flow of piston rod hole unit cross-sectional area liquid oil, form the compression damping that changes, until the compression damping maximum.
Principle of work of the present invention is: when bumper is subjected to outside intense impact or heavy duty, the compression shock absorption spring, piston rod drive piston component to the upper connector axis of orientation to moving, fluid in the upper oil cavitie is washed the compression damping valve block open by the compression damping oil duct on the valve seat and is entered lower oil cavitie, produces a spot of compression damping decay; When valve seat when the upper connector, then the damping axle on the damping seat works, the damping axle inserts in the oilhole of damping core retainer plate, in moving axially process, make fluid pass through the runner of a variable section earlier, thereby form the compression damping of a variation, when the runner between damping axle and the damping core retainer plate reaches minimum clearance, make damping pressure reach maxim gradually, prevent that effectively bumper from hitting the end.When restoring under the effect of piston rod at damping spring, the compression damping oil duct of compression damping valve block on closure piston under the fluid effect then, and the fluid in the lower oil cavitie is washed the recovery damper valve plate open, the slit that recovery compression damping oil duct by piston enters valve seat and oil cylinder inner wall enters upper oil cavitie, restores resistance and produce during the slit of fluid by valve seat and oil cylinder.
The present invention is owing to adopt technique scheme, therefore when motor bike is in variable load or heavy condition and travel on rugged road, under the resistance to compression pression that the elastic buffer and the oil cylinder inner fluid of damping spring changed, make bumper realize becoming damping shock absorption, can prevent effectively that rear shock absorber is being subjected to bump end phenomenon after heavy duty or the outside intense impact, delayed the service life of bumper, not only obviously improved the damping performance of motor bike, and obviously improved comfort of drivers and passengers, also improved the ride comfort of motorcycle driving simultaneously.
Description of drawings
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
Fig. 1 becomes one of structural representation of damping rear shock absorber for the present invention.
Fig. 2 is the I place structure for amplifying scheme drawing of Fig. 1.
Fig. 3 become for the present invention the damping rear shock absorber structural representation two.
The specific embodiment
See change damping rear shock absorber of the present invention shown in Figure 1, comprise attaching parts 1, cushion rubber 3, damping spring 2, spring perch 18, damping arrangement and upper connector 17 down.See shown in Fig. 1,2 that damping arrangement is made of piston rod 4, oil cylinder 15, guidance set, recoil spring 9, spring perch 18 and piston component.Guidance set is made of seal cover cap 5, oil sealing 6 and orienting sleeve 7, and seal cover cap 5 is fixed on a side of oil cylinder 15 and by outside framework oil seal 6 sealings, is sleeved on orienting sleeve 7 and oil cylinder 15 clampings on the piston rod 4, makes piston rod 4 axial motion in orienting sleeve 7.For improving orienting sleeve 7 resistance to abrasions and preventing leakage of oil, a composite bush 8 also is housed in orienting sleeve 7, composite bush 8 is made of from inside to outside polytetrafluoroethylene floor, glass layer, metallic framework layer and copper sheathing layer successively, and composite bush 8 is fitted in the orienting sleeve 7.See shown in Figure 2, piston component is by valve seat 13, piston 10 and compression damping valve block 12, valve block spring 11 and recovery damper valve plate 22 constitute, be provided with recoil spring 9 between orienting sleeve 7 and the piston 10, piston 10 is provided with compression damping oil duct 10-1 and restores damping flow channel 10-2, the position of compression damping oil duct 10-1 and recovery damping flow channel 10-2 can be provided with as required, piston 10 is connected on the valve seat 13, opposite side at valve seat 13 also is equipped with damping core retainer plate 14, the oilhole of damping core retainer plate 14 communicates with oilhole on the valve seat 13, be provided with the compression damping valve block 12 of control compression damping oil duct 10-1 between piston 10 and the valve seat 13, compression damping valve block 12 1 sides are provided with valve block spring 11,13 of piston 10 and valve seats also are provided with the recovery damper valve plate 22 that damping flow channel 10-2 is restored in control, restore damper valve plate 22 1 sides and have projection supporting, this projection can adopt packing ring, or be set directly on the valve seat 13, also can adopt shell fragment to withstand on a side of restoring damper valve plate 22.Damping seat 16 on the upper connector 17 has the damping axle 16-1 that extends in the oil cylinder 15, the length of damping axle 16-1 is between 5mm～45mm, and damping core retainer plate 14 has the oilhole that matches with damping axle 16-1, this damping seat 16 can be made integrative-structure with upper connector 17, or be illustrated in figure 1 as the branch body structure, damping seat 16 is connected on the upper connector 17, and damping seat 16 wraps in oil cylinder 15 outsides and is tightly connected.When bumper compression shock absorption spring 2, when making damping axle 16-1 enter damping core retainer plate 14, because the variation of anterior oil duct sectional area, and the flow of minimizing unit cross-sectional area fluid, form the resistance to compression pression that changes, in damping axle 16 goed deep into the hole of damping core retainer plate 14 and piston rod 4, it is minimum that the runner between damping axle 16-1 and the damping core retainer plate 14 reaches, make damping pressure reach maxim gradually, form the compression damping power of a variation.See shown in Fig. 1,2 that the present invention preferably its front portion of damping axle 16-1 of damping seat 16 is the awl column and matches with the oilhole of damping core retainer plate 14, forms a comparatively compression damping of moderate change.The damping axle 16-1 that can also be damping seat 16 is a vertical cyclindrical shape, and matches with the reamer hole of damping core retainer plate 14 oilholes, also can form the compression damping of a moderate change, along with the stroke of damping axle 16-1 increases, until the maxim of compression damping.
Therefore damping changing impact damper of the present invention is when being subjected to external force intense impact or heavy duty, compression shock absorption spring 2, restore the recovery damping flow channel 10-2 on damper valve plate 22 closure pistons 10, fluid in the upper oil cavitie is by the compression damping oil duct 10-1 of piston 10, enter lower oil cavitie, when damping axle 16-1 enters damping core retainer plate 14, form the compression damping of a variation, arrive maximum up to compression damping.In the bumper recuperation, compression damping valve block 12 closure pistons 10 compression damping oil duct 10-1 then, restoring damper valve plate 22 opens, fluid in the lower oil cavitie is entered in the upper oil cavitie from restoring damping flow channel 10-2, valve seat 13 peripheries and oil cylinder 15 inwalls, form when making fluid pass through valve seat 13 peripheries and restore damping with oil cylinder 15 inwalls.
Seeing shown in Figure 3ly, is the another kind of structure that becomes the damping rear shock absorber of the present invention, and not existing together with said structure is to have set up airbag structure, makes in-oil cylinder fluid realize Oil-gas Separation, to prevent fluid emulsification and to reduce dumping force.Also be provided with oil pocket 17-1 at upper connector 17, be provided with independent sealed air bag 19 in the oil pocket 17-1, air bag 19 is fixed on the gasbag seat 23, and gasbag seat 23 is equipped with inflation spool 21, be convenient to fast aeration, the oil pocket 17-1 outer face of upper connector 17 also is equipped with seal closure 21, and damping seat 16 is provided with oilhole 16-2, and the oil pocket 17-1 on the upper connector 17 communicates with oil cylinder 15 by the oilhole 6-2 on oil duct 17-2 and the damping seat 16.When bumper compressed, the fluid in the upper oil cavitie entered the oil pocket 17-1 compressing gasbag of upper connector 17 by damping seat 16 upper oil hole 16-2; During recovery, then fluid enters upper oil cavitie from the oil pocket 17-1 of upper connector 17 by oil duct 17-2 and damping seat 16, stretch in the oil pocket institute's volume of increasing and reducing to remedy piston rod 4, thereby make in-oil cylinder fluid reach the purpose of Oil-gas Separation, prevent fluid emulsification.
For making bumper have stability preferably, the internal diameter of oil cylinder 15 of the present invention is arranged on 22mm～38mm, and the internal diameter of its oil cylinder 15 adopts the large tank series of 22mm, 28mm, 30mm, 35mm, 38mm.
Claims (9)
1, a kind of change damping rear shock absorber, comprise attaching parts (1) down, cushion rubber (3), damping spring (2), spring perch (18), damping arrangement and upper connector (17), damping arrangement is made of piston rod (4), oil cylinder (15), guidance set, recoil spring (9), spring perch (18) and piston component; Wherein, described guidance set is made of seal cover cap (5), oil sealing (6) and orienting sleeve (7), described piston component is by piston (10), valve seat (13) and compression damping valve block (12), valve block spring (11) and restore damper valve plate (22) formation, described recoil spring (9) is arranged between orienting sleeve (7) and the piston (10), it is characterized in that:
A, described piston (10) are provided with compression damping oil duct (10-1) and restore damping flow channel (10-2), piston (10) and damping core retainer plate (14) are connected to the both sides of valve seat (13), the oilhole of damping core retainer plate (14) communicates with oilhole on the valve seat (13), be provided with the compression damping valve block (12) of control compression damping oil duct (10-1) between piston (10) and the valve seat (13), also be provided with the recovery damper valve plate (22) that damping flow channel (10-2) is restored in control between piston (10) and the valve seat (13);
B, upper connector (17) also have damping seat (16), damping seat (16) has the damping axle (16-1) that extends in oil cylinder (15) cavity, damping axle (16-1) during compression extends in the hole of the oilhole of damping core retainer plate (14) and piston rod (4), reduce the flow of unit cross-sectional area liquid oil, form the compression damping that changes, arrive maximum until compression damping.
2, change damping rear shock absorber according to claim 1, it is characterized in that: described damping seat (16) is connected on the upper connector (17), and damping seat (16) is tightly connected with oil cylinder (15).
3, change damping rear shock absorber according to claim 1 and 2 is characterized in that: its front portion of damping axle (16-1) of described damping seat (16) is the awl column and matches with the oilhole of damping core retainer plate (14), forms the compression damping of moderate change.
4, change damping rear shock absorber according to claim 1 and 2 is characterized in that: the damping axle (16-1) of described damping seat (16) is a vertical cyclindrical shape, and matches with the reamer hole of damping core retainer plate (14) oilhole, forms the compression damping of moderate change.
5, change damping rear shock absorber according to claim 1 and 2 is characterized in that: the length of the damping axle (16-1) of described damping seat (16) is between 5mm～45mm.
6, change damping rear shock absorber according to claim 1, it is characterized in that: the internal diameter of described oil cylinder (15) is between 22mm～38mm.
7, change damping rear shock absorber according to claim 1, it is characterized in that: abrasion resistant composite bush (8) is housed in the described orienting sleeve (7), and composite bush (8) is made of from inside to outside polytetrafluoroethylene floor, glass layer, metallic framework layer and copper sheathing layer successively.
8, change damping rear shock absorber according to claim 1, it is characterized in that: described upper connector (17) also is provided with oil pocket (17-1), and be provided with independent sealed air bag (19) in the oil pocket (17-1), seal closure (21) is connected oil pocket (17-1) side of upper connector (17), damping seat (16) is provided with oilhole (16-2), and the oil pocket (17-1) on the upper connector (17) communicates with oil cylinder (15) by the oilhole (16-2) of oil duct (17-2) and damping seat (16).
9, change damping rear shock absorber according to claim 8, it is characterized in that: described air bag (19) is fixed on the gasbag seat (23), and gasbag seat (23) is equipped with inflation spool (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310112836 CN1269684C (en) | 2003-12-29 | 2003-12-29 | Damper after changing damp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310112836 CN1269684C (en) | 2003-12-29 | 2003-12-29 | Damper after changing damp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1554875A CN1554875A (en) | 2004-12-15 |
| CN1269684C true CN1269684C (en) | 2006-08-16 |
Family
ID=34336739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310112836 Expired - Fee Related CN1269684C (en) | 2003-12-29 | 2003-12-29 | Damper after changing damp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1269684C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011823B (en) * | 2010-12-09 | 2012-12-12 | 常州市武进华强车配有限公司 | Rear vibration isolator |
| CN102954142B (en) * | 2011-08-25 | 2016-03-23 | 长春孔辉汽车科技股份有限公司 | bidirectional hydraulic limit shock absorber |
| CN102434532A (en) * | 2011-12-16 | 2012-05-02 | 江苏新瑞重工科技有限公司 | Mechanical throttle buffering structure for hydraulic cylinder |
| CN103171394B (en) * | 2013-03-21 | 2015-07-22 | 丁占鳌 | Three-wheeled vehicle suspension eliminating vibration through throttle resistance and friction |
| CN103267083A (en) * | 2013-05-13 | 2013-08-28 | 瑞安市耐迪特汽摩配有限公司 | Restoring-resistance-adjustable shock absorber |
| CN103758915B (en) * | 2013-12-30 | 2016-02-17 | 中国人民解放军92537部队 | Proportional zoom type impact-resistant isolation device |
| CN107035804B (en) * | 2017-06-08 | 2023-08-04 | 高碑店市龙程汽车制造有限公司 | Vehicle damping device |
| CN107795625B (en) * | 2017-09-20 | 2019-10-22 | 武汉船用机械有限责任公司 | A kind of fluid pressure type damping buffer |
| CN112591140B (en) * | 2020-11-02 | 2022-10-21 | 中国运载火箭技术研究院 | Load-shedding slow-release device for aircraft drag release launching |
-
2003
- 2003-12-29 CN CN 200310112836 patent/CN1269684C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1554875A (en) | 2004-12-15 |
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