CN102979848A - Inversion type rear shock absorber with adjustable prepressure of shock absorber spring - Google Patents
Inversion type rear shock absorber with adjustable prepressure of shock absorber spring Download PDFInfo
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- CN102979848A CN102979848A CN2012105194108A CN201210519410A CN102979848A CN 102979848 A CN102979848 A CN 102979848A CN 2012105194108 A CN2012105194108 A CN 2012105194108A CN 201210519410 A CN201210519410 A CN 201210519410A CN 102979848 A CN102979848 A CN 102979848A
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Abstract
The invention discloses an inversion type rear shock absorber with adjustable prepressure of a shock absorber spring, which comprises an upper connector, a lower connector, a double-barrel type cylinder body, a shock absorption connecting rod, the shock absorber spring, an oil seal and a piston body, wherein the lower end of the shock absorption connecting rod is locked on the lower connector through a nut, the upper end of the double-barrel type cylinder body is fixedly connected with the upper connector, and the upper end of the shock absorption connecting rod extends into a working cylinder of the double-barrel type cylinder body; a spring support base is sheathed on the upper part of the double-barrel type cylinder body and connected with a hydraulic adjusting handle through a hydraulic pipe; and the upper end of the shock absorber spring is abutted against the lower surface of the spring support base, and the lower end of the shock absorber spring is abutted against the upper surface of the lower connector. Through the additionally added spring support base, a pipeline and a hydraulic adjusting pump, the prepressure of the shock absorber spring can be adjusted through a prepressure adjusting mechanism, so as to meet the requirements of different vehicle operating conditions and road conditions and increase the driving comfort and controllabitity. Additionally, 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 behind traditional hydraulic damping type, shown in Figure 2 is installation signal of damping on vehicle frame after this.In conjunction with Fig. 1, Fig. 2 as can be known, damping mainly is 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. after this.In upper connection 1, the lower end of double barreled cylinder body 3 and lower contact 2 weld together by nut check in the upper end of damping connecting rod 4, 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 with 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, have damping hole 8a at piston body 8 upper cavity A and lower chamber B are communicated with.The upper end of damping is hinged on the vehicle frame 18 by upper connection 1 after being somebody's turn to do, and the lower end is hinged on the back vent 19 by lower contact 2.When car ran into obstacle and load capacity increase, damping spring 5 was 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.Fluid flows downward when damping spring 5 restores, and is subject to resistance at fluid during by damping hole 8a, has realized the effect of damping.
Development along with rear cushion technique, damping behind the upside-down has appearred, such as State Intellectual Property Office disclosed " a kind of inverted rear shock absorber ", the patent No. is 20082099733.5, be that the upper end of damping connecting rod and upper connection 1 connect, the lower end of double barreled cylinder body links to each other with lower contact, compares damping behind traditional hydraulic damping type, its damping effect is better, and ride comfort is higher.But the common structure of damping is comparatively complicated behind the upside-down that occurs at present, and number of spare parts is many; Simultaneously, the precompression of damping spring is definite when design, and its shock absorbing characteristics can only be complementary with a certain ride characteristic, can not satisfy the requirement of different road conditions and carrying capacity, and its vehicle performance and travelling comfort still remain to be improved.
Summary of the invention
The present invention is directed to above-mentioned technical problem and improve, aim to provide damping behind a kind of upside-down that can regulate the damping spring precompression, with applicable different road conditions and carrying capacity requirement, improve driving comfortability and maneuverability.
For solving above technical problem, damping behind the upside-down that a kind of damping spring precompression 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), described piston body (8) is separated into upper cavity (A) and lower chamber (B) with clutch release slave cylinder (3b), between the lower end of double barreled cylinder body (3) and damping connecting rod (4), be provided with oil sealing (6), have damping hole (8a) at described piston body (8) upper cavity (A) and lower chamber (B) are communicated with; The top of described double barreled cylinder body (3) is set with spring supporting base (12), described spring supporting base (12) links to each other 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).
Working procedure and principle are as follows: when car runs into jolt serious road surface or carrying capacity and increases, by the hydraulic regulation pump, increase the pressure in the pipeline, move downward thereby promote the spring supporting base, and the compression shock absorption spring, to improve the precompression of damping spring; The working principle of damping is identical behind working principle in the running process and the existing upside-down, and when car ran into obstacle, damping spring was compressed, and the damping connecting rod moves upward relatively, and the volume of upper cavity reduces, and fluid flows to lower chamber by damping hole.Fluid upwards flows when damping spring restores, and is subject to resistance at fluid during by damping hole, has realized the effect of damping.
Between above-mentioned clutch release slave cylinder and damping connecting rod (4), be provided with guide holder (7), guide holder (7) is positioned at the top of oil sealing (6), be provided with spacing pad (9) in the below of piston body (8), damping connecting rod (4) between spacing pad (9) and guide holder (7) is equipped with buffer spring (10), 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) that is arranged on the bottom valve body (11), between described piston body (8) and the spacing pad (9), be respectively arranged with valve block (17) and valve block spring (15) between bottom valve body (11) and the bottom valve banking stop (16); The valve block (17) that is arranged between piston body (8) and the spacing pad (9) covers damping hole (8a), corresponding valve block spring (15) withstands on this valve block (17), the valve block (17) that is arranged between bottom valve body (11) and the bottom valve banking stop (16) covers oil-through hole (11a), and corresponding valve block spring (15) withstands on this valve block (17).Guide holder is the guiding that moves up and down of damping connecting rod, and binding buffer spring, bottom valve body, valve block and valve block spring etc. have further improved the damping effect of rear damping.
Described damping hole (8a) is comprised of the radial hole of axial hole and through hole perpendicular to axial direction, and whole L-shaped, the optimal damping hole structure is to make things convenient for the processing of damping hole.
Be preferably, described upper connection (1) is provided with mounting hole, is provided with shock absorbing sleeve (1a) and spacer ring (1b) in the mounting hole, and upper connection (1) welds together with double barreled cylinder body (3).
Beneficial effect:
(1) by setting up spring supporting base, pipeline and hydraulic regulation pump, can regulate the precompression of damping spring.The user can carry out the precompression adjustment according to vehicle capacity and pavement behavior, and the car load damping performance is strengthened, and improves adhesive quality and the Security on wheel and road surface, satisfies the requirement of vehicle multi-operating mode and people to the high request of vehicle riding comfort and maneuverability.
(2) existing upside-down damping is compared in damping behind this upside-down, and structure is more simple, compact, has effectively reduced manufacture cost.
Description of drawings
Fig. 1 is the structural representation of damping behind the traditional hydraulic damping type.
Fig. 2 is the scheme of installation of damping on vehicle frame behind the hydraulic damping type.
Fig. 3 is structural representation of the present invention.
Fig. 4 is the partial enlarged drawing of Fig. 3.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
In conjunction with damping behind Fig. 3, the upside-down that damping spring precompression shown in Figure 4 is adjustable, formed 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, valve block spring 15, bottom valve banking stop 16, valve block 17 etc.
In lower contact 2, the upper end of double barreled cylinder body 3 and upper connection 1 are fixed together by nut check in the lower end of damping connecting rod 4.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.Be provided with piston body 8 between damping connecting rod 4 and clutch release slave cylinder, on damping connecting rod 4, piston body 8 is separated into upper cavity A and lower chamber B with clutch release slave cylinder to piston body 8 by nut check.Between the lower end of double barreled cylinder body 3 and damping connecting rod 4, be provided with oil sealing 6, overflow to avoid the fluid in the clutch release slave cylinder.Having damping hole 8a at piston body 8 is communicated with upper cavity A and lower chamber B.The top of double barreled cylinder body 3 is set with spring supporting base 12, and spring supporting base 12 is slidingly connected with double barreled cylinder body 3, and spring supporting base 12 links to each other with hydraulic regulation pump 14 by pipeline 13.Hydraulic regulation pump 14 is preferably selected hydraulic hand-pump, to save cost.By hydraulic regulation pump 14, increase or reduce pressure in the pipeline 13, slide up and down along double barreled cylinder body 3 thereby promote spring supporting base 12.Damping spring 5 is arranged between spring supporting base 12 and the 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.
Be preferably, be provided with guide holder 7 between clutch release slave cylinder and damping connecting rod 4, 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.Be provided with spacing pad 9 below piston body 8, the damping connecting rod 4 between spacing pad 9 and guide holder 7 is equipped with buffer spring 10.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 inboard of bottom valve body 11, and shoe cream room C is communicated with upper cavity A by the oil-through hole 11a that is arranged on the bottom valve body 11.Between piston body 8 and the spacing pad 9, be respectively arranged with valve block 17 and valve block spring 15 between bottom valve body 11 and the bottom valve banking stop 16.The valve block 17 that is arranged between piston body 8 and the spacing pad 9 covers damping hole 8a, and corresponding valve block spring 15 withstands on this valve block 17; Equally, the valve block 17 that is arranged between bottom valve body 11 and the bottom valve banking stop 16 covers oil-through hole 11a, and corresponding valve block spring 15 withstands on this valve block 17.
Secondly, damping hole 8a preferably is comprised of the radial hole of axial hole and through hole perpendicular to axial direction, and is whole L-shaped.Further, upper connection 1 is provided with mounting hole, is provided with shock absorbing sleeve 1a and spacer ring 1b in the mounting hole, and upper connection 1 welds together with double barreled cylinder body 3.Also have mounting hole in the lower contact 2.
Claims (4)
1. damping behind the adjustable upside-down of a damping spring precompression, 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), described piston body (8) is separated into upper cavity (A) and lower chamber (B) with clutch release slave cylinder (3b), between the lower end of double barreled cylinder body (3) and damping connecting rod (4), be provided with oil sealing (6), have damping hole (8a) at described piston body (8) upper cavity (A) and lower chamber (B) are communicated with; The top of described double barreled cylinder body (3) is set with spring supporting base (12), described spring supporting base (12) links to each other 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).
2. according to damping behind the adjustable upside-down of damping spring precompression claimed in claim 1, it is characterized in that: between described clutch release slave cylinder and damping connecting rod (4), be provided with guide holder (7), guide holder (7) is positioned at the top of oil sealing (6), be provided with spacing pad (9) in the below of piston body (8), damping connecting rod (4) between spacing pad (9) and guide holder (7) is equipped with buffer spring (10), 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) that is arranged on the bottom valve body (11), between described piston body (8) and the spacing pad (9), be respectively arranged with valve block (17) and valve block spring (15) between bottom valve body (11) and the bottom valve banking stop (16); The valve block (17) that is arranged between piston body (8) and the spacing pad (9) covers damping hole (8a), corresponding valve block spring (15) withstands on this valve block (17), the valve block (17) that is arranged between bottom valve body (11) and the bottom valve banking stop (16) covers oil-through hole (11a), and corresponding valve block spring (15) withstands on this valve block (17).
3. according to damping behind the adjustable upside-down of claim 1 or 2 described damping spring precompressions, 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, and is whole L-shaped.
4. according to damping behind the adjustable upside-down of damping spring precompression claimed in claim 3, it is characterized in that: described upper connection (1) is provided with mounting hole, be provided with shock absorbing sleeve (1a) and spacer ring (1b) in the mounting hole, upper connection (1) welds together with double barreled cylinder body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105194108A CN102979848A (en) | 2012-12-06 | 2012-12-06 | Inversion type rear shock absorber with adjustable prepressure of shock absorber spring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105194108A CN102979848A (en) | 2012-12-06 | 2012-12-06 | Inversion type rear shock absorber with adjustable prepressure of shock absorber spring |
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| CN102979848A true CN102979848A (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105194108A Pending CN102979848A (en) | 2012-12-06 | 2012-12-06 | Inversion type rear shock absorber with adjustable prepressure of shock absorber spring |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020318A (en) * | 2015-07-09 | 2015-11-04 | 重庆川东减震制造有限公司 | Oil storage barrel assembly |
| CN109080733A (en) * | 2018-09-29 | 2018-12-25 | 北京云迹科技有限公司 | Robot chassis and robot |
| CN115370875A (en) * | 2022-08-25 | 2022-11-22 | 芜湖高昌液压机电技术有限公司 | Hydraulic contraction type electromechanical equipment auxiliary moving assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3848710A (en) * | 1971-09-13 | 1974-11-19 | Bobrick Corp | Shock absorber, piston and valve structure |
| US4036335A (en) * | 1971-09-13 | 1977-07-19 | Arnold A. Cowan | Adjustable shock absorber |
| US4159756A (en) * | 1978-01-17 | 1979-07-03 | Kayaba K.K. | Adjusting device for damping force of rear shock-absorbers of motorcycles |
| CN2560553Y (en) * | 2002-05-23 | 2003-07-16 | 重庆长安减震器有限公司 | Air-bag split reear dampener |
| CN2594540Y (en) * | 2002-03-10 | 2003-12-24 | 重庆长安减震器有限公司 | Guiding seat bushing dampener |
| CN2601871Y (en) * | 2002-12-20 | 2004-02-04 | 重庆渝安创新科技集团有限公司 | Hydraulic pressure adjustable spring rear shock absorber |
| 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 |
| CN202992000U (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 prestress of damping spring |
-
2012
- 2012-12-06 CN CN2012105194108A patent/CN102979848A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3848710A (en) * | 1971-09-13 | 1974-11-19 | Bobrick Corp | Shock absorber, piston and valve structure |
| US4036335A (en) * | 1971-09-13 | 1977-07-19 | Arnold A. Cowan | Adjustable shock absorber |
| US4159756A (en) * | 1978-01-17 | 1979-07-03 | Kayaba K.K. | Adjusting device for damping force of rear shock-absorbers of motorcycles |
| CN2594540Y (en) * | 2002-03-10 | 2003-12-24 | 重庆长安减震器有限公司 | Guiding seat bushing dampener |
| CN2560553Y (en) * | 2002-05-23 | 2003-07-16 | 重庆长安减震器有限公司 | Air-bag split reear dampener |
| CN2601871Y (en) * | 2002-12-20 | 2004-02-04 | 重庆渝安创新科技集团有限公司 | Hydraulic pressure adjustable spring rear shock absorber |
| 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 |
| CN202992000U (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 prestress of damping spring |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020318A (en) * | 2015-07-09 | 2015-11-04 | 重庆川东减震制造有限公司 | Oil storage barrel assembly |
| CN109080733A (en) * | 2018-09-29 | 2018-12-25 | 北京云迹科技有限公司 | Robot chassis and robot |
| CN115370875A (en) * | 2022-08-25 | 2022-11-22 | 芜湖高昌液压机电技术有限公司 | Hydraulic contraction type electromechanical equipment auxiliary moving assembly |
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Application publication date: 20130320 |