CN103016603B - Inverted rear shock absorber with adjustable precompressed damping force - Google Patents
Inverted rear shock absorber with adjustable precompressed damping force Download PDFInfo
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- CN103016603B CN103016603B CN201210519285.0A CN201210519285A CN103016603B CN 103016603 B CN103016603 B CN 103016603B CN 201210519285 A CN201210519285 A CN 201210519285A CN 103016603 B CN103016603 B CN 103016603B
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- damping
- connecting rod
- spring
- shock absorber
- bottom valve
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Abstract
The invention discloses an inverted rear shock absorber with adjustable precompressed damping force. The inverted rear shock absorber comprises an upper joint, a lower joint, a double-drum type cylinder body, a shock absorber connecting rod, a shock absorber spring, an oil seal and a piston body, wherein the lower end of the shock absorber connecting rod is locked onto the lower joint by a nut, the upper end of the double-drum type cylinder body is fixedly connected together with the upper joint, the upper end of the shock absorber connecting rod extends into a working cylinder of the double-drum type cylinder body, the shock absorber connecting rod between a limiting cushion and a guide seat is provided with a buffer spring, a damping valve plate and a damping valve plate spring are arranged between the piston body and the limiting cushion, the lower joint is provided with a positioning screw with a vertical axis and an adjusting screw with a horizontal axis, the upper end surface of the positioning screw faces against the lower end surface of the shock absorber connecting rod, and the adjusting screw vertically penetrates through the side wall of the lower joint and then is engaged with a bevel gear at the lower end of the shock absorber connecting rod. After the screws are screwed in or screw out, the precompressed damping force can be adjusted, so the requirements of different vehicle working stations and road conditions are met, the driving comfort and the operation performance are improved, meanwhile, the integral structure is simplified, and the cost is reduced.
Description
Technical field
The present invention relates to damper of vehicle, particularly motorcycle rear shock reducing.
Background technique
Figure 1 shows that damping after traditional hydraulic damping type, is the installation signal of this rear damping on vehicle frame shown in Fig. 2.Known in conjunction with Fig. 1, Fig. 2, this rear damping is mainly comprised of upper connection 1, lower contact 2, double barreled cylinder body 3, damping connecting rod 4, damping spring 5, oil sealing 6, guide holder 7, piston body 8, buffer spring 10 etc.The upper end of damping connecting rod 4 is by nut check in upper connection 1, and the lower end of double barreled cylinder body 3 and lower contact 2 weld together, and the lower end of damping connecting rod 4 is stretched in the clutch release slave cylinder of double barreled cylinder body 3.Between damping connecting rod 4 and clutch release slave cylinder, be provided with piston body 8, piston body 8 is separated into upper cavity A and lower chamber B by clutch release slave cylinder, between the upper end of double barreled cylinder body 3 and damping connecting rod 4, be provided with oil sealing 6 and guide holder 7, on piston body 8, have damping hole 8a upper cavity A and lower chamber B are communicated with.The upper end of this rear damping is hinged on vehicle frame 18 by upper connection 1, and lower end is hinged on back vent 19 by lower contact 2.When car runs into obstacle, damping spring 5 is compressed, and damping connecting rod 4 moves downward relatively, and the volume of lower chamber B reduces, and fluid flows to upper cavity A by damping hole 8a.When damping spring 5 restores, fluid flows downward, and at fluid, is subject to resistance during by damping hole 8a, has realized the effect of damping.
Development along with rear cushion technique, there is damping after upside-down, as disclosed in State Intellectual Property Office " a kind of inverted rear shock absorber ", the patent No. is 200820099733.5, be that the upper end of damping connecting rod and upper connection 1 connect, the lower end of double barreled cylinder body is connected with lower contact, compares damping after traditional hydraulic damping type, its damping effect is better, and ride comfort is higher.But the common structure of damping is comparatively complicated after the upside-down occurring at present, number of spare parts is many; Meanwhile, the precompression of buffer spring and damper valve plate spring is definite when design, and its precompressed damping force can only match with a certain ride characteristic, can not meet the requirement of vehicle multi-operating mode, and its vehicle performance and travelling comfort still have much room for improvement.
Summary of the invention
The present invention is directed to above-mentioned technical problem and improve, aim to provide damping after a kind of upside-down that can regulate precompressed damping force, to be suitable for different road conditions requirements, improve driving comfortability and maneuverability.
For solving above technical problem, damping after the upside-down that a kind of precompressed damping force provided by the invention is adjustable, comprise upper connection (1), lower contact (2), double barreled cylinder body (3), damping connecting rod (4) and damping spring (5), key is: the lower end of described damping connecting rod (4) by nut check in lower contact (2), the upper end of double barreled cylinder body (3) and upper connection (1) are fixed together, the upper end of damping connecting rod (4) is stretched in the clutch release slave cylinder of double barreled cylinder body (3), and between damping connecting rod (4) and clutch release slave cylinder, be provided with piston body (8), between the lower end of double barreled cylinder body (3) and damping connecting rod (4), be provided with oil sealing (6) and guide holder (7), and guide holder (7) is positioned at the top of oil sealing (6), described piston body (8) is separated into upper cavity (A) and lower chamber (B) by clutch release slave cylinder (3b), on described piston body (8), having damping hole (8a) is communicated with upper cavity (A) and lower chamber (B), in the below of piston body (8), be provided with spacing pad (9), on the damping connecting rod (4) between spacing pad (9) and guide holder (7), buffer spring (10) is housed, between described piston body (8) and spacing pad (9), be provided with damper valve plate (17) and damper valve plate spring (15), described damper valve plate (17) covers damping hole (8a), damper valve plate spring (15) withstands on described damper valve plate (17), the adjusting screw (23) of the vertical positioning screwn of axis (22) and axis horizontal is housed in described lower contact (2), the upper-end surface of described positioning screwn (22) is over against the lower end of damping connecting rod (4), adjusting screw (23) is vertically through after the sidewall of lower contact (1), with the lower end cone tooth engagement of damping connecting rod (4).
Working procedure and principle are as follows: when car runs into jolt serious road surface and carrying capacity and increases, the precompressed damping force that needs damping after increasing, precession adjusting screw, due to adjusting screw rod and the engagement of damping connecting rod cone tooth, when driving damping connecting rod to rotate, move up, the precompression of damper valve plate spring increases, otherwise, screw out adjusting screw, the precompression of damper valve plate spring reduces.Working principle in running process is identical with the working principle of damping after existing upside-down, and when car runs into obstacle, damping spring is compressed, and damping connecting rod moves upward relatively, and the volume of upper cavity reduces, and fluid flows to lower chamber by damping hole.When damping spring restores, fluid upwards flows, and at fluid, is subject to resistance during by damping hole, has realized the effect of damping.
Institute is preferably, the top of above-mentioned double barreled cylinder body (3) is installed with shoe cream room (C), bottom valve body (11) and bottom valve banking stop (16), described shoe cream room (C) is communicated with upper cavity (A) by the oil-through hole (11a) being arranged on bottom valve body (11), between described bottom valve body (11) and bottom valve banking stop (16), be provided with bottom valve sheet (20) and bottom valve sheet spring (21), described bottom valve sheet (20) covers oil-through hole (11a), and bottom valve sheet spring (21) withstands on bottom valve sheet (20).
The top of described double barreled cylinder body (3) is set with spring supporting base (12), described spring supporting base (12) is connected with hydraulic regulation pump (14) by pipeline (13), the upper end of described damping spring (5) is against the lower surface of spring supporting base (12), and the lower end of damping spring (5) is against the upper surface of lower contact (2).When car runs into jolt serious road surface or carrying capacity and increases, can also pass through hydraulic regulation pump, the pressure in increase pipeline, thereby promoting spring supporting base moves downward, and compression shock absorption spring, to improve the precompression of damping spring, thus the damping performance of damping after further improving.
Described damping hole (8a) is comprised of the radial hole of axial hole and through hole perpendicular to axial direction, and whole L-shaped, optimal damping hole structure, to facilitate the processing of damping hole.
Beneficial effect:
(1) by set up positioning screwn and adjusting screw in lower contact, the lower end cone tooth engagement of adjusting screw and damping connecting rod, positioning screwn carries out spacing to the precession of adjusting screw, back-out, thereby the precompressed damping force to rear damping regulates, user can carry out precompression adjustment according to vehicle condition and pavement behavior, car load damping performance is strengthened, improve adhesive quality and the Security on wheel and road surface, meet requirement and the high request of people to vehicle riding comfort and maneuverability of vehicle multi-operating mode;
(2) by setting up spring supporting base, pipeline and hydraulic regulation pump, can regulate the precompression of damping spring, further to improve the damping performance of rear damping in addition;
(2) after this upside-down, existing upside-down damping is compared in damping, and structure is more simple, compact, has effectively reduced manufacture cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of damping after traditional hydraulic damping type.
Fig. 2 is the scheme of installation of damping on vehicle frame after hydraulic damping type.
Fig. 3 is structural representation of the present invention.
Fig. 4 is the partial enlarged drawing of Fig. 3.
Fig. 5 is the state of precompressed damping force minimum.
Fig. 6 is the state of precompressed damping force maximum.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
In conjunction with damping after the adjustable upside-down of the precompressed damping force shown in Fig. 3, Fig. 4, by upper connection 1, lower contact 2, double barreled cylinder body 3, damping connecting rod 4, damping spring 5, oil sealing 6, guide holder 7, piston body 8, spacing pad 9, buffer spring 10, bottom valve body 11, spring supporting base 12, pipeline 13, hydraulic regulation pump 14, damper valve plate spring 15, bottom valve banking stop 16, damper valve plate 17, bottom valve sheet 20, bottom valve sheet spring 21, positioning screwn nail 22, adjusting screw 23 etc., formed.
The lower end of damping connecting rod 4 is by nut check in lower contact 2, and the upper end of double barreled cylinder body 3 and upper connection 1 are fixed together.The lower end of double barreled cylinder body 3 is opening end, and the upper end of damping connecting rod 4 is stretched in the clutch release slave cylinder of double barreled cylinder body 3.Between damping connecting rod 4 and clutch release slave cylinder, be provided with piston body 8, piston body 8 is by nut check on damping connecting rod 4, and piston body 8 is separated into upper cavity A and lower chamber B by clutch release slave cylinder.Between the lower end of double barreled cylinder body 3 and damping connecting rod 4, be provided with oil sealing 6 and guide holder 7, guide holder 7 is positioned at the top of oil sealing 6, and fixes by the closing in of clutch release slave cylinder lower end, and oil sealing 6 overflows for preventing the fluid in clutch release slave cylinder.On piston body 8, having damping hole 8a is communicated with upper cavity A and lower chamber B.Damping spring 5 is arranged between spring supporting base 12 and lower contact 2, and the upper end of damping spring 5 is against the lower surface of spring supporting base 12, and the lower end of damping spring 5 is against the upper surface of lower contact 2.
Below piston body 8, be provided with spacing pad 9, on the damping connecting rod 4 between spacing pad 9 and guide holder 7, buffer spring 10 be housed.Between piston body 8 and spacing pad 9, be provided with damper valve plate 17 and damper valve plate spring 15, damper valve plate 17 covers damping hole 8a, and damper valve plate spring 15 withstands on damper valve plate 17; The adjusting screw 23 of axis vertical positioning screwn 22 and axis horizontal is housed in lower contact 2, the upper-end surface of positioning screwn 22 is plane, the upper-end surface of positioning screwn 22 is over against the lower end of damping connecting rod 4, adjusting screw 23 is vertical through after the sidewall of lower contact 1, with the lower end cone tooth engagement of damping connecting rod 4.The termination of adjusting screw 23 is with cone tooth, and the lower end of damping connecting rod 4 is with cone tooth, and both mesh together.
As shown in Figure 5, Figure 6, when screwing out adjusting screw 23, drive damping connecting rod 4 to move down, when the lower end of damping connecting rod 4 is against the upper-end surface of positioning screwn 22, precompressed damping force is minimum; When precession adjusting screw 23, drive damping connecting rod 4 to move up, when the left end of adjusting screw 23 is against the sidewall of positioning screwn 22, precompressed damping force is maximum.
Further, the top of double barreled cylinder body 3 is installed with shoe cream room C, bottom valve body 11 and bottom valve banking stop 16, and bottom valve banking stop 16 is positioned at the inner side of bottom valve body 11, and shoe cream room C is communicated with upper cavity A by the oil-through hole 11a being arranged on bottom valve body 11.Between bottom valve body 11 and bottom valve banking stop 16, be provided with bottom valve sheet 20 and bottom valve sheet spring 21, bottom valve sheet 20 covers oil-through hole 11a, and bottom valve sheet spring 21 withstands on bottom valve sheet 20.
The top of double barreled cylinder body 3 is set with spring supporting base 12, and spring supporting base 12 is slidably connected with double barreled cylinder body 3, and spring supporting base 12 is connected with hydraulic regulation pump 14 by pipeline 13.Hydraulic regulation pump 14 is preferably selected hydraulic hand-pump, with cost-saving.By hydraulic regulation pump 14, increase or reduce the pressure in pipeline 13, thereby promote spring supporting base 12, along double barreled cylinder body 3, slide up and down.
Secondly, damping hole 8a is preferably comprised of the radial hole of axial hole and through hole perpendicular to axial direction, whole L-shaped.Further, upper connection 1 is provided with mounting hole, is provided with shock absorbing sleeve 1a and spacer ring 1b in mounting hole, and upper connection 1 welds together with double barreled cylinder body 3.In lower contact 2, also have mounting hole.
Claims (4)
1. damping after the adjustable upside-down of a precompressed damping force, comprise upper connection (1), lower contact (2), double barreled cylinder body (3), damping connecting rod (4) and damping spring (5), it is characterized in that: the lower end of described damping connecting rod (4) by nut check in lower contact (2), the upper end of double barreled cylinder body (3) and upper connection (1) are fixed together, the upper end of damping connecting rod (4) is stretched in the clutch release slave cylinder of double barreled cylinder body (3), and between damping connecting rod (4) and clutch release slave cylinder, be provided with piston body (8), between the lower end of double barreled cylinder body (3) and damping connecting rod (4), be provided with oil sealing (6) and guide holder (7), and guide holder (7) is positioned at the top of oil sealing (6), described piston body (8) is separated into upper cavity (A) and lower chamber (B) by clutch release slave cylinder (3b), on described piston body (8), having damping hole (8a) is communicated with upper cavity (A) and lower chamber (B), in the below of piston body (8), be provided with spacing pad (9), on the damping connecting rod (4) between spacing pad (9) and guide holder (7), buffer spring (10) is housed, between described piston body (8) and spacing pad (9), be provided with damper valve plate (17) and damper valve plate spring (15), described damper valve plate (17) covers damping hole (8a), damper valve plate spring (15) withstands on described damper valve plate (17), the adjusting screw (23) of the vertical positioning screwn of axis (22) and axis horizontal is housed in described lower contact (2), the upper-end surface of described positioning screwn (22) is over against the lower end of damping connecting rod (4), adjusting screw (23) is vertically through after the sidewall of lower contact (1), with the lower end cone tooth engagement of damping connecting rod (4),
The top of described double barreled cylinder body (3) is installed with shoe cream room (C), bottom valve body (11) and bottom valve banking stop (16), described shoe cream room (C) is communicated with upper cavity (A) by the oil-through hole (11a) being arranged on bottom valve body (11), between described bottom valve body (11) and bottom valve banking stop (16), be provided with bottom valve sheet (20) and bottom valve sheet spring (21), described bottom valve sheet (20) covers oil-through hole (11a), and bottom valve sheet spring (21) withstands on bottom valve sheet (20).
2. according to damping after the adjustable upside-down of precompressed damping force claimed in claim 1, it is characterized in that: the top of described double barreled cylinder body (3) is set with spring supporting base (12), described spring supporting base (12) is connected with hydraulic regulation pump (14) by pipeline (13), the upper end of described damping spring (5) is against the lower surface of spring supporting base (12), and the lower end of damping spring (5) is against the upper surface of lower contact (2).
3. according to damping after the adjustable upside-down of precompressed damping force claimed in claim 2, it is characterized in that: described damping hole (8a) is comprised of the radial hole of axial hole and through hole perpendicular to axial direction, whole L-shaped.
4. according to damping after the adjustable upside-down of precompressed damping force claimed in claim 1, it is characterized in that: described upper connection (1) is provided with mounting hole, in mounting hole, be provided with shock absorbing sleeve (1a) and spacer ring (1b), upper connection (1) welds together with double barreled cylinder body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210519285.0A CN103016603B (en) | 2012-12-06 | 2012-12-06 | Inverted rear shock absorber with adjustable precompressed damping force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210519285.0A CN103016603B (en) | 2012-12-06 | 2012-12-06 | Inverted rear shock absorber with adjustable precompressed damping force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016603A CN103016603A (en) | 2013-04-03 |
| CN103016603B true CN103016603B (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210519285.0A Expired - Fee Related CN103016603B (en) | 2012-12-06 | 2012-12-06 | Inverted rear shock absorber with adjustable precompressed damping force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103016603B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108119592B (en) * | 2017-12-30 | 2023-11-21 | 珠海市业成轨道交通设备科技有限公司 | Bidirectional external adjustable oil pressure shock absorber for high-speed marking rail |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2616748Y (en) * | 2003-04-11 | 2004-05-19 | 陆杰 | Two-guiding hydraulic vibration-damper |
| CN201258938Y (en) * | 2008-08-18 | 2009-06-17 | 重庆渝安创新科技(集团)有限公司 | Inverted rear shock absorber |
| CN201973157U (en) * | 2010-12-30 | 2011-09-14 | 浙江万向系统有限公司 | Multistage damping piston valve of automobile vibration damper |
| CN202991999U (en) * | 2012-12-06 | 2013-06-12 | 力帆实业(集团)股份有限公司 | Inverted rear cushion capable of adjusting prestressed damping force |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06129470A (en) * | 1992-10-20 | 1994-05-10 | Tokico Ltd | Damping force adjusting type hydraulic shock absorber |
| CN2692005Y (en) * | 2004-04-21 | 2005-04-13 | 重庆长安减震器有限公司 | Adjustable compression damping aeration type rear shock absorber |
| DE102006025579B3 (en) * | 2006-06-01 | 2007-12-27 | Zf Friedrichshafen Ag | Piston rod for e.g. passenger car`s vibration damper, has axial transit channel via which mounting screw is guided, where thread connections provided by screw are accessible for adjustment of pre-stressing in each stroke position of rod |
| JP5564368B2 (en) * | 2010-08-30 | 2014-07-30 | カヤバ工業株式会社 | Rear cushion unit |
-
2012
- 2012-12-06 CN CN201210519285.0A patent/CN103016603B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2616748Y (en) * | 2003-04-11 | 2004-05-19 | 陆杰 | Two-guiding hydraulic vibration-damper |
| CN201258938Y (en) * | 2008-08-18 | 2009-06-17 | 重庆渝安创新科技(集团)有限公司 | Inverted rear shock absorber |
| CN201973157U (en) * | 2010-12-30 | 2011-09-14 | 浙江万向系统有限公司 | Multistage damping piston valve of automobile vibration damper |
| CN202991999U (en) * | 2012-12-06 | 2013-06-12 | 力帆实业(集团)股份有限公司 | Inverted rear cushion capable of adjusting prestressed damping force |
Non-Patent Citations (1)
| Title |
|---|
| JP平6-129470A 1994.05.10 |
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| CN103016603A (en) | 2013-04-03 |
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Address after: 400037 Chongqing city Beibei District caijiagang Zhen Tong Xing Industrial Park Fengqi Road No. 16 Patentee after: Lifan Industry (Group) Co., Ltd. Address before: 400037 Chongqing city Shapingba District No. 60 Zhangjiawan Bridge Patentee before: Lifan Industry (Group) Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20191206 |