CN102734369B - Hydraulic type damper - Google Patents
Hydraulic type damper Download PDFInfo
- Publication number
- CN102734369B CN102734369B CN201210252516.6A CN201210252516A CN102734369B CN 102734369 B CN102734369 B CN 102734369B CN 201210252516 A CN201210252516 A CN 201210252516A CN 102734369 B CN102734369 B CN 102734369B
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- China
- Prior art keywords
- piston
- ring
- rear end
- piston rod
- damper
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- Expired - Fee Related
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Abstract
The invention discloses a hydraulic type damper, which belongs to the technical field of hydraulic control devices. The hydraulic type damper comprises a damper body; the inner side of the front end of the damper body is connected with a front end check ring through threads; a piston rod connected with the front end check ring penetrates through the interior of the front end check ring; a barrel is sleeved with the middle of the damper body; a piston connected with the piston rod is arranged in the barrel; a one-way valve is arranged at the rear end of the piston; the inner side of the rear end of the damper body is connected with a rear end nut through threads; an adjusting valve penetrates through the interior of the rear end nut; a filter is matched with the front end of the adjusting valve; the filter is elastically connected with the piston; and a speed adjusting knob is matched with the rear end of the adjusting valve. The hydraulic type damper has a simple structure and reasonable design, overcomes the conventional weak points of a damper through the reasonable arrangement of the internal structure, ensures that the consistency among dampers is good, can also ensure that the damping coefficient of the damper becomes infinite, is convenient to use in special applicable occasions, and has high stability and a long service life.
Description
Technical field
The invention belongs to hydraulic control device technical field, be specifically related to hydraulic damper.
Background technique
Hydraulic damper is to carry out the damping machinery of constant motion after needing to slow down under high-speed motion state.Existing damper adopts air-damped form mostly, when this type of air damper work, exists the compression ratio of an air, causes initial stage damping inadequate, and damping constant is unstable.
Summary of the invention
The problem existing for prior art, the object of the invention is to design provides a kind of technological scheme of hydraulic damper.
Described hydraulic damper, comprise body, it is characterized in that described body front end inside thread connects front end back-up ring, in front end back-up ring, intert the piston rod being connected with front end back-up ring is set, described body middle part socket arranges cylinder, in cylinder, be provided with the piston being connected with piston rod, piston rear end arranges one-way valve, end nut after described body rear end inside thread connects, in rear end nut, intert modulating valve is set, modulating valve front end is equipped with filter, and filter elasticity connects piston, and described modulating valve rear end is equipped with speed adjusting knob.
Described hydraulic damper, is characterized in that being provided with self oiling bearing between described front end back-up ring and piston rod.
Described hydraulic damper, is characterized in that described piston rod rear end socket arranges spring retainer, is equipped with spring B between spring retainer and front end back-up ring.
Described hydraulic damper, is characterized in that the liner that described piston rod rear end arranges by socket is supported in body.
Described hydraulic damper, is characterized in that described piston is socketed by front end the support ring arranging and is supported in cylinder.
Described hydraulic damper, is characterized in that described one-way valve comprises steel ball, annular spring and hole back-up ring, and described steel ball and annular spring are limited in piston rear end inner chamber with back-up ring by hole.
Described hydraulic damper, is characterized in that being provided with spacer ring, spacer ring sealed cylindrical between described piston and piston rod.
Described hydraulic damper, is characterized in that, between described piston rear end and filter, spring A is set.
Described hydraulic damper, is characterized in that the retaining screw that described speed adjusting knob arranges by side is fixedly connected with modulating valve, and the sealed screw that speed adjusting knob arranges by end face is by modulating valve back-end sealing.
Above-mentioned hydraulic damper, simple in structure, reasonable in design, by the setting of reasonable in internal structure, overcome the common weakness of damper, make between individuality conformity good, and can make damper damping constant become infinity, facilitate the occasion of Special use, and hydraulic damper of the present invention, stability is high, on working life.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
In figure: 1-speed adjusting knob; 2-retaining screw; 3-modulating valve; End nut after 4-; 5-body; 6-spring A; 7-cylinder; 8-annular spring; 9-piston; 10-liner; 11-piston rod; 12-self oiling bearing; 13-front end back-up ring; 14-spring B; 15-spring retainer; 16-spacer ring; 17-support ring; 18-steel ball; 19-hole back-up ring; 20-filter; 21-sealed screw.
Embodiment
Further illustrate the present invention below in conjunction with Figure of description.
As shown in Figure 1, hydraulic damper comprises body 5 and is arranged on piston rod 11, cylinder 7, piston 9, the modulating valve 3 of body 5 inner chambers.
The concrete structure of hydraulic damper is as follows:
The front end inside thread of body 5 connects front end back-up ring 13, in front end back-up ring 13, interts piston rod 11 is set.In order to make can there be relative slip between front end back-up ring 13 and piston rod 11, between front end back-up ring 13 and piston rod 11, be equipped with self oiling bearing 12.Piston rod 11 enters body 5 inner chambers through after front end back-up ring 13, and the liner 10 arranging by its rear end is supported in body 5 inner chambers.The outer socket of piston rod 11 is provided with spring retainer 15, by the spring B 14 arranging between spring retainer 15 and front end back-up ring 13, piston rod 11 is connected with front end back-up ring 13 elasticity.
In body 5 middle part inner chambers, be provided with cylinder 7, in cylinder 7, be provided with piston 9, and piston 9 be supported in cylinder 7 by support ring 17.Piston 9 is connected with piston rod 11, and is provided with spacer ring 16 between piston 9 and piston rod 11, and spacer ring 16 is by cylinder 7 front port sealings.Piston 9 rear ends are provided with one-way valve, and this one-way valve comprises and be arranged on the steel ball 18, annular spring 8 of piston 9 rear end cavitys and back-up ring 19 for hole, and hole is limited in steel ball 18 and annular spring 8 in piston 9 rear end cavitys with back-up ring 19.
Body 5 rear inside are by the rear end nut 4 secured adjusted valves 3 that are threaded with body 5, and modulating valve 3 interts in rear end nut 4.Modulating valve 3 front ends are equipped with filter 20, and filter 20 is for filtered fluid force feed, and filter 20 connects piston 9 by the spring A6 elasticity arranging, and spring A6 is positioned at cylinder 7.Modulating valve 3 rear ends are equipped with speed adjusting knob 1, and the retaining screw 2 that speed adjusting knob 1 arranges by side is fixedly connected with modulating valve 3, and the sealed screw 20 that speed adjusting knob 1 arranges by end face is by modulating valve 3 back-end sealings.
In the present invention, in the cavity of body 5 and liner 10 rear sides, be filled with working oil.
When work, piston rod 11 is subject to extraneous power, and spring B 14 is compressed, and promotes piston 9 and moves backward, spring A6 compression; Piston 9 motion back piston 9 rear side working oil extruding backward, make piston 9 backside pressure be greater than the pressure of front side, thereby make the one-way valve in piston 9 be in closed condition; After piston 9 backside pressure increase, regulate the valve opening between rear end nut 4 and modulating valve 3 under the effect of working oil, working oil enters in modulating valve 3; Entering front end that working oil in modulating valve 3 enters piston 9 by the gap between cylinder 7 and body 5 fills up because of the piston 9 cavity space producing of moving backward.
After power cut-off, spring A6 resilience, now piston 9 front side hydraulic fluid pressures are greater than the pressure of rear side, working oil acts on after steel ball 18, open check valve, the working oil that is positioned at piston 9 front sides enters the rear end of piston 9 by one-way valve, to keep the hydraulic oil balance at piston 9 two ends.
This product is suitable for after deceleration, needing under high-speed motion state the occasion of steady motion, and damping force can regulate as required.Because hydraulic damping does not exist airborne compression context, therefore good stability of the present invention, life-span are long, and can be used for frequent motion needs the occasion of damping.
Shown in the above and figure is only the preferred embodiment of the present invention.It should be pointed out that for the person of ordinary skill of the art, under the premise without departing from the principles of the invention, can also make some modification and improvement, these also should be considered as belonging to protection scope of the present invention.
Claims (4)
1. hydraulic damper, comprise body (5), it is characterized in that described body (5) front end inside thread connects front end back-up ring (13), in front end back-up ring (13), intert the piston rod (11) being connected with front end back-up ring (13) is set, described body (5) middle part socket arranges cylinder (7), in cylinder (7), be provided with the piston (9) being connected with piston rod (11), piston (9) rear end arranges one-way valve, end nut (4) after described body (5) rear inside is threaded, in rear end nut (4), intert modulating valve (3) is set, modulating valve (3) front end is equipped with filter (20), filter (20) elasticity connects piston (9), described modulating valve (3) rear end is equipped with speed adjusting knob (1),
Between described front end back-up ring (13) and piston rod (11), be provided with self oiling bearing (12); Described piston rod (11) rear end socket arranges spring retainer (15), between spring retainer (15) and front end back-up ring (13), is equipped with spring B (14); Between described piston (9) and piston rod (11), be provided with spacer ring (16), spacer ring (16) sealed cylindrical (7); Between described piston (9) rear end and filter (20), spring A(6 is set), the retaining screw (2) that described speed adjusting knob (1) arranges by side is fixedly connected with modulating valve (3), and the sealed screw (21) that speed adjusting knob (1) arranges by end face is by modulating valve (3) back-end sealing.
2. hydraulic damper as claimed in claim 1, is characterized in that the liner (10) that described piston rod (11) rear end arranges by socket is supported in body (5).
3. hydraulic damper as claimed in claim 1, is characterized in that described piston (9) is socketed by front end the support ring (17) arranging and is supported in cylinder (7).
4. hydraulic damper as claimed in claim 1, it is characterized in that described one-way valve comprises steel ball (18), annular spring (8) and back-up ring (19) for hole, described steel ball (18) and annular spring (8) are limited in the inner chamber of piston (9) rear end by hole back-up ring (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210252516.6A CN102734369B (en) | 2012-07-20 | 2012-07-20 | Hydraulic type damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210252516.6A CN102734369B (en) | 2012-07-20 | 2012-07-20 | Hydraulic type damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102734369A CN102734369A (en) | 2012-10-17 |
| CN102734369B true CN102734369B (en) | 2014-06-04 |
Family
ID=46990430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210252516.6A Expired - Fee Related CN102734369B (en) | 2012-07-20 | 2012-07-20 | Hydraulic type damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102734369B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110393888B (en) * | 2019-07-01 | 2024-04-02 | 动能趋势(广东)运动康复有限公司 | Hydraulic unidirectional damping device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367857A (en) * | 2011-09-20 | 2012-03-07 | 宁波一力减震器有限公司 | Adjustable force type hydraulic damper |
| CN202790292U (en) * | 2012-07-20 | 2013-03-13 | 詹高峰 | Hydraulic damper |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3843890B2 (en) * | 2002-05-31 | 2006-11-08 | Ｔｃｍ株式会社 | Work vehicle dynamic damper |
| JP4919045B2 (en) * | 2007-04-19 | 2012-04-18 | 日立オートモティブシステムズ株式会社 | Damping force adjustable fluid pressure shock absorber |
-
2012
- 2012-07-20 CN CN201210252516.6A patent/CN102734369B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367857A (en) * | 2011-09-20 | 2012-03-07 | 宁波一力减震器有限公司 | Adjustable force type hydraulic damper |
| CN202790292U (en) * | 2012-07-20 | 2013-03-13 | 詹高峰 | Hydraulic damper |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2003-343506A 2003.12.03 |
| JP特开2008-267487A 2008.11.06 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102734369A (en) | 2012-10-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20150720 |
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| EXPY | Termination of patent right or utility model |