CN202790292U - Hydraulic damper - Google Patents
Hydraulic damper Download PDFInfo
- Publication number
- CN202790292U CN202790292U CN 201220353745 CN201220353745U CN202790292U CN 202790292 U CN202790292 U CN 202790292U CN 201220353745 CN201220353745 CN 201220353745 CN 201220353745 U CN201220353745 U CN 201220353745U CN 202790292 U CN202790292 U CN 202790292U
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- CN
- China
- Prior art keywords
- hydraulic damper
- piston
- ring
- rear end
- piston rod
- 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.)
- Expired - Fee Related
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- Fluid-Damping Devices (AREA)
Abstract
The utility model provides a hydraulic damper and belongs to the technical field of hydraulic control devices. The hydraulic damper comprises a body, an internal thread at the front end of the body is connected with a front-end retaining ring, a piston rod connected with the front-end retaining ring penetrates in the front-end retaining ring, a one-way valve is arranged at the rear end of a piston, an internal thread at the rear end of the body is connected with a rear-end nut, a control valve penetrates in the rear-end nut, a filter is matched with the front end of the control valve, the filter is elastically connected with the piston, and the rear end of the control valve is matched with a speed regulation knob. The hydraulic damper is simple in structure and reasonable in design, common defects of the damper are overcome by the use of the reasonable inside structure, and accordingly consistence of the parts is high, damping coefficient of the damper can be infinite and the hydraulic damper is convenient to use in special places. In addition, the hydraulic damper is high in stability and long in service life.
Description
Technical field
The utility model belongs to the hydraulic control device technical field, is specifically related to the hydraulic damper.
Background technique
Hydraulic damper is for carrying out the damping machinery of constant motion after need slowing down under high-speed motion state.Existing damper adopts air-damped form mostly, during this type of air damper work, exists the compression ratio of an air, causes the initial stage damping inadequate, and damping constant is unstable.
The model utility content
For the problem that prior art exists, the purpose of this utility model is to design the technological scheme that a kind of hydraulic damper is provided.
Described hydraulic damper, comprise body, it is characterized in that described body front end inside thread connects the front end back-up ring, intert in the front end back-up ring piston rod that is connected with the front end back-up ring is set, the middle part socket of described body arranges cylinder, be provided with the piston that is connected with piston rod in the cylinder, piston rear end arranges one-way valve, end nut after described body rear end inside thread connects, intert in the rear end nut modulating valve is set, the modulating valve front end is equipped with filter, and filter elasticity connects piston, and described modulating valve rear end is equipped with the speed adjusting knob.
Described hydraulic damper is characterized in that being provided with self oiling bearing between described front end back-up ring and the piston rod.
Described hydraulic damper is characterized in that the socket of described piston rod rear end arranges spring retainer, is equipped with spring B between spring retainer and the front end back-up ring.
Described hydraulic damper is characterized in that described piston rod rear end is supported in the body by the liner that socket arranges.
Described hydraulic damper is characterized in that described piston is supported in the cylinder by the support ring that the front end socket arranges.
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 the piston rear end inner chamber with back-up ring by the hole.
Described hydraulic damper is characterized in that being provided with spacer ring between described piston and the piston rod spacer ring sealed cylindrical.
Described hydraulic damper is characterized in that arranging between described piston rear end and the filter spring A.
Described hydraulic damper is characterized in that described speed adjusting knob is fixedly connected with modulating valve by the retaining screw that the side arranges, and the sealed screw of speed adjusting knob by the end face setting is with the 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, so that conformity is good between the individuality, and can make the damper damping constant become infinity, make things convenient for the occasion of Special use, and hydraulic damper of the present utility model, stability is high, on working life.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1-speed adjusting knob; The 2-retaining screw; The 3-modulating valve; End nut behind the 4-; The 5-body; 6-spring A; The 7-cylinder; The 8-annular spring; The 9-piston; The 10-liner; The 11-piston rod; The 12-self oiling bearing; 13-front end back-up ring; The 14-spring B; The 15-spring retainer; The 16-spacer ring; The 17-support ring; The 18-steel ball; 19-hole back-up ring; The 20-filter; The 21-sealed screw.
Embodiment
Further specify the utility model below in conjunction with Figure of description.
As shown in Figure 1, the 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, interts in the front end back-up ring 13 piston rod 11 is set.For so that between front end back-up ring 13 and the piston rod 11 relative slip can be arranged, 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 after passing front end back-up ring 13, and the liner 10 that arranges by its rear end is supported in body 5 inner chambers.Piston rod 11 outer sockets are provided with spring retainer 15, by the spring B 14 that arranges between spring retainer 15 and the front end back-up ring 13, make piston rod 11 be connected elasticity with the front end back-up ring and connect.
Be provided with cylinder 7 in the body 5 middle part inner chambers, be provided with piston 9 in the cylinder 7, and piston 9 be supported in the 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 seals cylinder 7 front ports.Piston 9 rear ends are provided with one-way valve, and this one-way valve comprises steel ball 18, annular spring 8 and the hole back-up ring 19 that is arranged on piston 9 rear end cavitys, and the hole is limited in steel ball 18 and annular spring 8 in the piston 9 rear end cavitys with back-up ring 19.
The rear end nut 4 secured adjusted valves 3 of body 5 rear inside by being threaded with body 5, modulating valve 3 interts in rear end nut 4.Modulating valve 3 front ends are equipped with filter 20, and filter 20 is used for the filtered fluid force feed, and filter 20 connects piston 9 by the spring A6 elasticity that arranges, and spring A6 is positioned at cylinder 7.Modulating valve 3 rear ends are equipped with speed adjusting knob 1, and speed adjusting knob 1 is fixedly connected with modulating valve 3 by the retaining screw 2 that the side arranges, and the sealed screw 20 of speed adjusting knob 1 by the end face setting is with modulating valve 3 back-end sealings.
Be filled with working oil in the cavity of body 5 and liner 10 rear sides in the utility model.
During work, piston rod 11 is subject to extraneous power, spring B 14 compressions, and pushing piston 9 moves backward, spring A6 compression; Backward motion back piston 9 rear side working oils extruding of piston 9 so that piston 9 backside pressure are greater than the pressure of front side, thereby makes the one-way valve in the piston 9 be in closed condition; After piston 9 backside pressure increased, at the valve opening of regulating under the effect of working oil between rear end nut 4 and the modulating valve 3, working oil entered in the modulating valve 3; The working oil that enters in the modulating valve 3 is filled up the cavity space of moving backward and producing because of piston 9 by the front end that the gap between cylinder 7 and the body 5 enters piston 9.
After the power cut-off, spring A6 resilience, piston 9 front side hydraulic fluid pressures are greater than the pressure of rear side at this moment, after working oil acts on 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.
Need the occasion of steady motion after this product is suitable for slowing down under the high-speed motion state, damping force can be regulated as required.Because there is not airborne compression context in hydraulic damping, so the utility model good stability, life-span are long, can be used for the occasion of frequent motion need damping.
Shown in the above and the figure only is preferred implementation of the present utility model.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model principle, can also make some modification and improvement, these also should be considered as belonging to protection domain of the present utility model.
Claims (9)
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), intert in the front end back-up ring (13) piston rod (11) that is connected with front end back-up ring (13) is set, the socket of described body (5) middle part arranges cylinder (7), be provided with the piston (9) that is connected with piston rod (11) in the cylinder (7), piston (9) rear end arranges one-way valve, described body (5) the rear inside rear end nut (4) that is threaded, intert in the rear end nut (4) modulating valve (3) is set, modulating valve (3) front end is equipped with filter (20), filter (20) elasticity connects piston (9), and described modulating valve (3) rear end is equipped with speed adjusting knob (1).
2. hydraulic damper as claimed in claim 1 is characterized in that being provided with self oiling bearing (12) between described front end back-up ring (13) and the piston rod (11).
3. hydraulic damper as claimed in claim 1 is characterized in that the socket of described piston rod (11) rear end arranges spring retainer (15), is equipped with spring B (14) between spring retainer (15) and the front end back-up ring (13).
4. hydraulic damper as claimed in claim 1 is characterized in that described piston rod (11) rear end is supported in the body (5) by the liner (10) that socket arranges.
5. hydraulic damper as claimed in claim 1 is characterized in that described piston (9) is supported in the cylinder (7) by the support ring (17) that the front end socket arranges.
6. hydraulic damper as claimed in claim 1, it is characterized in that described one-way valve comprises steel ball (18), annular spring (8) and hole back-up ring (19), described steel ball (18) and annular spring (8) are limited in the inner chamber of piston (9) rear end with back-up ring (19) by the hole.
7. hydraulic damper as claimed in claim 1 is characterized in that being provided with spacer ring (16) between described piston (9) and the piston rod (11), spacer ring (16) sealed cylindrical (7).
8. hydraulic damper as claimed in claim 1 is characterized in that between described piston (9) rear end and the filter (20) spring A(6 being set).
9. hydraulic damper as claimed in claim 1, it is characterized in that described speed adjusting knob (1) is fixedly connected with modulating valve (3) by the retaining screw (2) that the side arranges, the sealed screw (21) of speed adjusting knob (1) by the end face setting is with modulating valve (3) back-end sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220353745 CN202790292U (en) | 2012-07-20 | 2012-07-20 | Hydraulic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220353745 CN202790292U (en) | 2012-07-20 | 2012-07-20 | Hydraulic damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790292U true CN202790292U (en) | 2013-03-13 |
Family
ID=47817558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220353745 Expired - Fee Related CN202790292U (en) | 2012-07-20 | 2012-07-20 | Hydraulic damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734369A (en) * | 2012-07-20 | 2012-10-17 | 詹高峰 | Hydraulic type damper |
-
2012
- 2012-07-20 CN CN 201220353745 patent/CN202790292U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734369A (en) * | 2012-07-20 | 2012-10-17 | 詹高峰 | Hydraulic type damper |
| CN102734369B (en) * | 2012-07-20 | 2014-06-04 | 詹高峰 | Hydraulic type damper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130313 Termination date: 20150720 |
|
| EXPY | Termination of patent right or utility model |