CN104728336A - Inverted-type front shock absorption device of motorcycle - Google Patents
Inverted-type front shock absorption device of motorcycle Download PDFInfo
- Publication number
- CN104728336A CN104728336A CN201510155132.6A CN201510155132A CN104728336A CN 104728336 A CN104728336 A CN 104728336A CN 201510155132 A CN201510155132 A CN 201510155132A CN 104728336 A CN104728336 A CN 104728336A
- Authority
- CN
- China
- Prior art keywords
- pipe
- oil pocket
- piston
- breeches pipe
- shock absorption
- 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.)
- Granted
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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
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K25/00—Axle suspensions
- B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
- B62K25/06—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms
- B62K25/08—Axle suspensions for mounting axles resiliently on cycle frame or fork with telescopic fork, e.g. including auxiliary rocking arms for front wheel
-
- 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
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses an inverted-type front shock absorption device of a motorcycle. The inverted-type front shock absorption device of the motorcycle comprises a double-barrel cylinder body and a breeches pipe combination. The double-barrel cylinder body comprises an outer pipe, an inner pipe and an end cover. The breeches pipe combination comprises a breeches pipe and a foot valve seat assembly. The lower end of the breeches pipe is fixed on a lower foot. The upper portion of the breeches pipe and the foot valve seat assembly extend together into an outer cavity of the double-barrel cylinder body. The breeches pipe is further provided with a front shock absorption spring. The lower end of the inner pipe is connected with an inner pipe connector. The position between the foot valve seat assembly and the inner pipe connector is sleeved with a buffering spring. The inner pipe connector is fixedly sleeved with a main piston and a reset damping steel sheet from top to bottom, and is locked by a main piston locking nut. The upper end of the front shock absorption spring is abutted against the main piston locking nut. The lower end of the front shock absorption spring is fixed on a shock absorption spring base at the bottom of the breeches pipe. An annular groove is formed in the waist portion of the main piston. The annular groove is movably sleeved with a piston ring. By optimizing a shock absorption damping oil compressing channel and a reset channel, the trafficability and the comfort level of the whole motorcycle are improved, the structure is simple, the quantity of parts is few, and the shock absorption performance is good.
Description
Technical field
The present invention relates to damper of vehicle, particularly shock-damping structure before motorcycle inverted formula.
Background technique
Vehicle, all can at front-wheel and forward mounting position assembling front shock absorber because of various road surfaces demand, offsets vehicle whereby and bears the active force that road surface and bearing material bring, improve the travelling comfort that vehicle is driven.
Traditional reversed front shock absorber, primarily of bitubular cylinder body and breeches pipe combination composition.Bitubular cylinder body is combined by the outer tube be fixed together, interior pipe and end cap usually, and bitubular cylinder body comprises inner chamber and exocoel.Breeches pipe combination usually by breeches pipe, and is connected in the foot valve seat assembly composition of breeches pipe upper end.The lower end of breeches pipe is fixed on leftover bits and pieces, and the top of breeches pipe is stretched in the exocoel of bitubular cylinder body together with after foot valve seat assembly rivet clasp.Damping spring and damping spring base before being also provided with in breeches pipe, by the motion of front damping spring and hydraulic oil, realize the effect of damping.Existing inversion type front buffer gear, structure and oil circuit are comparatively complicated, and number of spare parts is many, damping effect is not ideal enough.
Summary of the invention
The present invention is intended to the oil channel structures optimizing reversed front shock absorber, and reduces number of spare parts, improves damping effect, improves the travelling comfort driven.
For solving above technical problem, a kind of inversion type front buffer gear in motorcycle provided by the invention, comprise bitubular cylinder body and breeches pipe combination, described bitubular cylinder body comprises the outer tube (1) be fixed together, interior pipe (2) and end cap (3), described breeches pipe combination comprises breeches pipe (4), and be connected in the foot valve seat assembly (5) of breeches pipe (4) upper end, the lower end of described breeches pipe (4) is fixed on leftover bits and pieces (6), the top of breeches pipe (4) is stretched in the exocoel of bitubular cylinder body together with foot valve seat assembly (5), front damping spring (7) is also installed in described breeches pipe (4), it is characterized in that: the lower end of described interior pipe (2) is connected to inner pipe joint (8), damping spring (9) is set with between foot valve seat assembly (5) and inner pipe joint (8), described inner pipe joint (8) is installed with main piston (10) outward from top to bottom and replys damping steel disc (11), and by main piston locking nut (12) locking, the upper end of described front damping spring (7) is against on main piston locking nut (12), the lower end of front damping spring (7) is fixed on the damping spring base (14) of breeches pipe (4) bottom, the waist of described main piston (10) has circular groove (10a), the outer wall on main piston (10) top has through longitudinal short slot (10b) to circular groove (10a), piston main body (10c) between adjacent longitudinal short slot (10b) has the piston oilhole (203) of up/down perforation, outside described circular groove (10a), be movably installed with piston ring (13),
When damping device is subject to downward active force and starts to compress front damping spring (7), described piston ring (13) moves upward and is against the top of circular groove (10a) under the promotion of the first oil pocket (101) oil pressure, the a part of fluid being positioned at the first oil pocket (101) enters longitudinal short slot (10b) through the gap between main piston (10) and breeches pipe (4), finally flows into the second oil pocket (102) between foot valve seat assembly (5) and main piston (10); Another part fluid being arranged in the first oil pocket (101) flows into pipe (2) inner chamber and is divided into two-way, wherein a road enters described second oil pocket (102) through the downside cinclides (201) of interior pipe (2), and an other road enters the 3rd oil pocket (103) between foot valve seat assembly (5) and end cap (3) through the upside cinclides (202) of interior pipe (2);
When current damping spring (7) starts to reply, reply outboard end downsagging thus expose piston oilhole (203) under the promotion of the second oil pocket (102) oil pressure of damping steel disc (11), piston ring (13) moves downward and is against the bottom of circular groove (10a) simultaneously, the a part of fluid being positioned at the second oil pocket (102) gets back to the first oil pocket (101) through piston oilhole (203), till the second oil pocket (102) oil pressure is not enough to promote to reply damping steel disc (11) warpage; Another part fluid being arranged in the second oil pocket (102) gets back to pipe (2) inner chamber through downside cinclides (201), the fluid being arranged in the 3rd oil pocket (103) gets back to pipe (2) inner chamber through upside cinclides (202), flows back to together in the first oil pocket (101) after converging.
Be preferably, described interior pipe (2) middle part fixed cover is equipped with stroke limit plate (16) and crashproof primer (15), and crashproof primer (15) is positioned at the below of stroke limit plate (16).Stroke limit plate is used for carrying out upper limit to foot valve seat assembly, and prevent transition from compressing front damping device, crashproof primer is for cushioning the shock of foot valve seat assembly to stroke limit plate.
The present invention by arranging main piston, replying damping steel disc and piston ring in front damping device, piston ring and reply the damping steel disc automatic valve as wherein two oil circuits, select to open and close according to the size of oil pressure, thus different oil circuits is formed in compression and Recovery Process, be communicated with the first oil pocket and the second oil pocket.Whole oil circuit is always three oil circuits in compression process, and just started to be three oil circuits in Recovery Process, be two oil circuits afterwards, optimize damping damping oil pressure channel and reply passage, contribute to improving car load passing ability and travelling comfort, there is the features such as structure is simple, number of spare parts is few, damping performance is good.
Accompanying drawing explanation
Fig. 1 is outline drawing of the present invention.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the stereogram of main piston in Fig. 2.
Fig. 4 is one of sectional view of Fig. 3.
Fig. 5 is the sectional view two of Fig. 3.
Fig. 6 is the structural representation of replying damping steel disc in Fig. 2.
Fig. 7 is the oil circuit figure of compressive state of the present invention.
Fig. 8 is the oil circuit figure of recoil state of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Shown in composition graphs 1, Fig. 2, a kind of inversion type front buffer gear in motorcycle, combines two-part composition primarily of bitubular cylinder body and breeches pipe.Wherein, bitubular cylinder body to be fixed together formation primarily of outer tube 1, interior pipe 2 and end cap 3, and bitubular cylinder body comprises inner chamber and exocoel, and outer tube 1, interior pipe 2 are threaded connection with end cap 3 respectively, being convenient to installation and removal, end cap 3 being provided with outside thread for being connected with outer tube 1; End cap 3 is provided with internal thread for being connected with interior pipe 2, and passes through nut check.
Breeches pipe combination is primarily of breeches pipe 4, and the foot valve seat assembly 5 being connected in breeches pipe 4 upper end forms.The lower end of breeches pipe 4 is fixed on leftover bits and pieces 6, and the top of breeches pipe 4 is stretched in the exocoel of bitubular cylinder body together with foot valve seat assembly 5, damping spring 7 before being also provided with in breeches pipe 4, and the above is consistent with existing inversion type front buffer gear structure, does not repeat them here.
Difference is: the lower end of interior pipe 2 is connected to inner pipe joint 8, and interior pipe 2 and inner pipe joint 8 are preferably by being threaded.Be set with damping spring 9 between foot valve seat assembly 5 and inner pipe joint 8, inner pipe joint 8 is outer to be installed with main piston 10 from top to bottom and to reply damping steel disc 11, and is locked by main piston locking nut 12.The upper end of front damping spring 7 is against on main piston locking nut 12, and the lower end of front damping spring 7 is fixed on the damping spring base 14 bottom breeches pipe 4; Piston ring 13 is movably installed with outside circular groove 10a.
Preferably, in the middle part of interior pipe 2, fixed cover is equipped with stroke limit plate 16 and crashproof primer 15, and crashproof primer 15 is positioned at the below of stroke limit plate 16, when foot valve seat assembly 5 is up and crashproof primer 15 contacts, namely stops up.
Shown in composition graphs 3, Fig. 4, Fig. 5, the waist of main piston 10 has circular groove 10a, the outer wall on main piston 10 top has through longitudinal short slot 10b to circular groove 10a, the piston main body 10c between adjacent longitudinal short slot 10b has the piston oilhole 203 of up/down perforation.Shown in composition graphs 2, Fig. 3, the top of circular groove 10a is preferably inclined-plane, and bottom is plane, and when piston ring 13 is against the top of circular groove 10a, both are linear contact lay; When piston ring 13 is against the bottom of circular groove 10a, both are face contact.During compression stroke, piston ring 13 is against the top of circular groove 10a, and longitudinal short slot 10b opens, and strengthens asphalt channel area, changes the compression damping in compression stroke; During recovery stroke, piston ring 13 is against the bottom of circular groove 10a, and longitudinal short slot 10b closes.
As shown in Figure 6, reply damping steel disc 11 to be formed by stacking by multiple elastic steel sheet.
Specific works process is as follows:
Composition graphs 2, Fig. 7, as shown by the arrows in Figure 7, when damping device is subject to downward active force and starts to compress front damping spring 7, piston ring 13 moves upward and is against the top of circular groove 10a under the promotion of the first oil pocket 101 oil pressure, enter longitudinal short slot 10b at a part of fluid of the first oil pocket 101 through the gap between main piston 10 and breeches pipe 4, finally flow into the second oil pocket 102 between foot valve seat assembly 5 and main piston 10; Another part fluid being arranged in the first oil pocket 101 flows into pipe 2 inner chamber and is divided into two-way, wherein a road enters the second oil pocket 102 through the downside cinclides 201 of interior pipe 2, and an other road enters the 3rd oil pocket 103 between foot valve seat assembly 5 and end cap 3 through the upside cinclides 202 of interior pipe 2.
Composition graphs 2, Fig. 8, as shown by the arrows in Figure 8, when current damping spring 7 starts to reply, the outboard end of replying damping steel disc 11 downsagging thus expose piston oilhole 203 under the promotion of the second oil pocket 102 oil pressure, piston ring 13 moves downward and is against the bottom of circular groove 10a simultaneously, the a part of fluid being positioned at the second oil pocket 102 gets back to the first oil pocket 101 through piston oilhole 203, till the second oil pocket 102 oil pressure is not enough to promote to reply damping steel disc 11 warpage; Another part fluid being arranged in the second oil pocket 102 gets back to pipe 2 inner chamber through downside cinclides 201, and the fluid being arranged in the 3rd oil pocket 103 gets back to pipe 2 inner chamber through upside cinclides 202, flows back to together in the first oil pocket 101 after converging.
Claims (4)
1. an inversion type front buffer gear in motorcycle, comprise bitubular cylinder body and breeches pipe combination, described bitubular cylinder body comprises the outer tube (1) be fixed together, interior pipe (2) and end cap (3), described breeches pipe combination comprises breeches pipe (4), and be connected in the foot valve seat assembly (5) of breeches pipe (4) upper end, the lower end of described breeches pipe (4) is fixed on leftover bits and pieces (6), the top of breeches pipe (4) is stretched in the exocoel of bitubular cylinder body together with foot valve seat assembly (5), front damping spring (7) is also installed in described breeches pipe (4), it is characterized in that: the lower end of described interior pipe (2) is connected to inner pipe joint (8), damping spring (9) is set with between foot valve seat assembly (5) and inner pipe joint (8), described inner pipe joint (8) is installed with main piston (10) outward from top to bottom and replys damping steel disc (11), and by main piston locking nut (12) locking, the upper end of described front damping spring (7) is against on main piston locking nut (12), the lower end of front damping spring (7) is fixed on the damping spring base (14) of breeches pipe (4) bottom, the waist of described main piston (10) has circular groove (10a), the outer wall on main piston (10) top has through longitudinal short slot (10b) to circular groove (10a), piston main body (10c) between adjacent longitudinal short slot (10b) has the piston oilhole (203) of up/down perforation, outside described circular groove (10a), be movably installed with piston ring (13),
When damping device is subject to downward active force and starts to compress front damping spring (7), described piston ring (13) moves upward and is against the top of circular groove (10a) under the promotion of the first oil pocket (101) oil pressure, the a part of fluid being positioned at the first oil pocket (101) enters longitudinal short slot (10b) through the gap between main piston (10) and breeches pipe (4), finally flows into the second oil pocket (102) between foot valve seat assembly (5) and main piston (10); Another part fluid being arranged in the first oil pocket (101) flows into pipe (2) inner chamber and is divided into two-way, wherein a road enters described second oil pocket (102) through the downside cinclides (201) of interior pipe (2), and an other road enters the 3rd oil pocket (103) between foot valve seat assembly (5) and end cap (3) through the upside cinclides (202) of interior pipe (2);
When current damping spring (7) starts to reply, reply outboard end downsagging thus expose piston oilhole (203) under the promotion of the second oil pocket (102) oil pressure of damping steel disc (11), piston ring (13) moves downward and is against the bottom of circular groove (10a) simultaneously, the a part of fluid being positioned at the second oil pocket (102) gets back to the first oil pocket (101) through piston oilhole (203), till the second oil pocket (102) oil pressure is not enough to promote to reply damping steel disc (11) warpage; Another part fluid being arranged in the second oil pocket (102) gets back to pipe (2) inner chamber through downside cinclides (201), the fluid being arranged in the 3rd oil pocket (103) gets back to pipe (2) inner chamber through upside cinclides (202), flows back to together in the first oil pocket (101) after converging.
2. according to inversion type front buffer gear in motorcycle according to claim 1, it is characterized in that: described interior pipe (2) middle part fixed cover is equipped with stroke limit plate (16) and crashproof primer (15), and crashproof primer (15) is positioned at the below of stroke limit plate (16).
3. according to inversion type front buffer gear in motorcycle according to claim 1, it is characterized in that: described outer tube (1), interior pipe (2) are threaded connection with end cap (3) respectively.
4. according to inversion type front buffer gear in motorcycle according to claim 1, it is characterized in that: the top of described circular groove (10a) is inclined-plane, bottom is plane, and when piston ring (13) is against the top of circular groove (10a), both are linear contact lay; When piston ring (13) is against the bottom of circular groove (10a), both are face contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510155132.6A CN104728336B (en) | 2015-04-02 | 2015-04-02 | Inversion type front buffer gear in motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510155132.6A CN104728336B (en) | 2015-04-02 | 2015-04-02 | Inversion type front buffer gear in motorcycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104728336A true CN104728336A (en) | 2015-06-24 |
| CN104728336B CN104728336B (en) | 2017-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510155132.6A Expired - Fee Related CN104728336B (en) | 2015-04-02 | 2015-04-02 | Inversion type front buffer gear in motorcycle |
Country Status (1)
| Country | Link |
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| CN (1) | CN104728336B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782322A (en) * | 2015-04-24 | 2016-07-20 | 无锡比德希减震阻尼技术有限公司 | High-stability piston structure for mechanical equipment damper |
| CN106122343A (en) * | 2016-08-31 | 2016-11-16 | 江门市大长江集团有限公司 | A kind of inversion type front damping device for motorcycle |
| CN112576679A (en) * | 2020-12-31 | 2021-03-30 | 赣州禾盈通用零部件有限公司 | Buffer device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1727249A (en) * | 2005-07-25 | 2006-02-01 | 重庆渝安创新科技(集团)有限公司 | An inverted front shock absorber for a motorcycle |
| JP2006183691A (en) * | 2004-12-24 | 2006-07-13 | Showa Corp | Front forks such as motorcycles |
| JP2011231794A (en) * | 2010-04-23 | 2011-11-17 | Showa Corp | Hydraulic shock absorber |
| JP2012117586A (en) * | 2010-11-30 | 2012-06-21 | Showa Corp | Front fork |
| CN102966696A (en) * | 2011-08-30 | 2013-03-13 | 株式会社昭和 | Front fork |
| CN104455184A (en) * | 2014-11-24 | 2015-03-25 | 重庆市亮影工贸有限公司 | Motorcycle inversed type front damper |
| CN204692442U (en) * | 2015-04-02 | 2015-10-07 | 重庆弓虽工页机械有限公司 | Inversion type front buffer gear in motorcycle |
-
2015
- 2015-04-02 CN CN201510155132.6A patent/CN104728336B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006183691A (en) * | 2004-12-24 | 2006-07-13 | Showa Corp | Front forks such as motorcycles |
| CN1727249A (en) * | 2005-07-25 | 2006-02-01 | 重庆渝安创新科技(集团)有限公司 | An inverted front shock absorber for a motorcycle |
| JP2011231794A (en) * | 2010-04-23 | 2011-11-17 | Showa Corp | Hydraulic shock absorber |
| JP2012117586A (en) * | 2010-11-30 | 2012-06-21 | Showa Corp | Front fork |
| CN102966696A (en) * | 2011-08-30 | 2013-03-13 | 株式会社昭和 | Front fork |
| CN104455184A (en) * | 2014-11-24 | 2015-03-25 | 重庆市亮影工贸有限公司 | Motorcycle inversed type front damper |
| CN204692442U (en) * | 2015-04-02 | 2015-10-07 | 重庆弓虽工页机械有限公司 | Inversion type front buffer gear in motorcycle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782322A (en) * | 2015-04-24 | 2016-07-20 | 无锡比德希减震阻尼技术有限公司 | High-stability piston structure for mechanical equipment damper |
| CN106122343A (en) * | 2016-08-31 | 2016-11-16 | 江门市大长江集团有限公司 | A kind of inversion type front damping device for motorcycle |
| CN106122343B (en) * | 2016-08-31 | 2019-05-17 | 江门市大长江集团有限公司 | A kind of inversion type front damping device for motorcycle |
| CN112576679A (en) * | 2020-12-31 | 2021-03-30 | 赣州禾盈通用零部件有限公司 | Buffer device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104728336B (en) | 2017-03-08 |
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Granted publication date: 20170308 Termination date: 20180402 |