CN204677668U - A kind of passive passive type hydraulic damping device - Google Patents
A kind of passive passive type hydraulic damping device Download PDFInfo
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- CN204677668U CN204677668U CN201520257129.0U CN201520257129U CN204677668U CN 204677668 U CN204677668 U CN 204677668U CN 201520257129 U CN201520257129 U CN 201520257129U CN 204677668 U CN204677668 U CN 204677668U
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- end cap
- piston rod
- cylinder bucket
- impact head
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Abstract
The purpose of this utility model is to provide a kind of passive passive type hydraulic damping device, comprise cylinder bucket, square end cap, circular end cap, piston rod, piston, impact head, square end cap and circular end cap are separately fixed at stem and the afterbody of cylinder bucket, it is inner that piston rod stretches to cylinder bucket through circular end cap, piston is arranged on piston rod upper end portion, piston arranges relief valve respectively, one-way valve and damping hole, upper cover of piston rod is equipped with floating piston, piston and the square end cap above it and cylinder barrel-shaped become rodless cavity, piston and the floating piston below it and form rod chamber between cylinder bucket, damping hole is communicated with rod chamber and rodless cavity, the underpart of piston rod connects impact head, recovery spring is set between impact head and circular end cap.The utility model can reduce impact when lifting, and use simply does not need human intervention simultaneously, to whole using process without additional requirement, can be applied in the environment of any depth of water, be specially adapted to use under water.
Description
Technical field
The utility model relates to a kind of damping device, specifically hydraulic damping device.
Background technique
Along with the development of ocean engineering, the general feature of marine settings is that build is larger, carry out modularized production, the installation between module is the important ring of ocean engineering all the time, and some are equipped with water-tight requirement simultaneously, these are equipped in can be very difficult in accurate installation in dark environments such as subsea, on the one hand because object is generally heavier, the precision of lifting is not high on the other hand, may produce huge impact, light then injuring part surface makes seal failure, heavy then directly break part.Load damping device, avoid the direct collision of part will make a kind of simple and effective method solving shock and damage.
Existing hydraulic bjuffer adopts pressure accumulation leather bag mostly, the oil storages such as pressure accumulation sponge regulate oil liquid pressure and change, refer in patent (publication number: CN203926565U) a kind ofly relies on pressure accumulation sponge to the hydraulic bjuffer regulating fluid to change, this kind of device relies on resiliently deformable to carry out work, in use easily fatigue damage occurs.
Summary of the invention
The purpose of this utility model is to provide the one being specially adapted to use passive passive type hydraulic damping device under water.
The purpose of this utility model is achieved in that
A kind of passive passive type hydraulic damping device of the utility model, it is characterized in that: comprise cylinder bucket, square end cap, circular end cap, piston rod, piston, impact head, square end cap and circular end cap are separately fixed at stem and the afterbody of cylinder bucket, it is inner that piston rod stretches to cylinder bucket through circular end cap, piston is arranged on piston rod upper end portion, piston arranges relief valve respectively, one-way valve and damping hole, upper cover of piston rod is equipped with floating piston, floating piston is between piston and circular end cap, piston and the square end cap above it and cylinder barrel-shaped become rodless cavity, piston and the floating piston below it and form rod chamber between cylinder bucket, damping hole is communicated with rod chamber and rodless cavity, the underpart of piston rod connects impact head, recovery spring is set between impact head and circular end cap.
The utility model can also comprise:
1, seal by O type circle between piston and cylinder bucket inwall, seal by O type circle between floating piston and cylinder bucket inwall and piston rod, pass through O type circle between square end cap and cylinder bucket and seal.
2, the piston rod part of stretching out outside circular end cap arranges adjustment bolt, and round nose covers the tapped hole arranging and coordinate with adjustment bolt, and impact head arranges rubber pad.
Advantage of the present utility model is:
1, simple and compact for structure, do not need oil sources.
Damping hole, relief valve, one-way valve is integrated on piston, does not need extra oil circuit, and component used are less, can save space again, and it is compact that various piece arranges.Compare traditional buffer, component are more, and what have also has outside oil circuit, and structure is more complicated.
2, Environmental Conditions and use pressure on device without impact.
The utility model adopts floating piston to regulate the change of oil pocket, has also carried out adjusting to the pressure of inside ensureing that the pressure difference at piston two ends does not change because of the change of Environmental Conditions all the time while regulating oil pocket.
3, be convenient to manufacture.
Cylinder bucket, the manufacture of the component such as end cap adopts machine tool both can process, and adopts standard piece in a large number simultaneously; Assembly process is also very simple, and step is less, can produce in batches.
4, application maintenance is simple.
Do not need hydraulic oil source during use, do not have oil circuit simultaneously, various valve arrangement is integrated in device inside, and Precerving liquid only needs the cleaning to outside.Very easy to use, only need require to install according to flange.
Accompanying drawing explanation
Fig. 1 is overall three-dimensional structure sketch of the present utility model;
Fig. 2 is the utility model structure diagram (plan view);
Fig. 3 is circular end cap structure diagram;
Fig. 4 is square end cap structure diagram;
Fig. 5 is impact head structure diagram;
Fig. 6 is the A-A sectional view in Fig. 2;
Fig. 7 is the B-B sectional view of relief valve in Fig. 6;
Fig. 8 is the C-C sectional view of one-way valve in Fig. 6;
Fig. 9 is the bolt connection diagram of end cap.
Embodiment
Below in conjunction with accompanying drawing citing, the utility model is described in more detail:
Composition graphs 1 ~ 9, the utility model comprises: plug cock seal ring 1, turnbuckle 2, hexagon nut 3, spring washer 4, square end cap 5, plug cock 6, round nut 7, lock washer 8, O type circle 9, O type circle back-up ring 10, O type circle back-up ring 11, O type circle 12, piston 13, cylinder bucket 14, piston rod 15, floating piston 16, O type circle back-up ring 17, O type circle 18, circular end cap 19, adjustment bolt 20, recovery spring 21, impact head 22, rubber pad 23, rod chamber e1, rodless cavity e2; Fig. 7 is relief valve, comprising: overflow spool 24, overflow valve core spring 25, relief valve adjustment knob 26; Fig. 8 is one-way valve, comprises check valve spring seat 27, nonreturn valve core spring 28, spherical valve core 29.
As depicted in figs. 1 and 2, it is primarily of oil cylinder, damper piston for a kind of passive passive type hydraulic damping device overall structure, and returning spring and impact head four part are formed.Piston has two formations, piston 13 is integrated with relief valve, damping hole, one-way valve; Piston 18 is floating piston.
Buffer unit structure is as shown in Fig. 1, Fig. 2, and square end cap 5 is connected by hexagon socket head cap screw assembly 2 with cylinder bucket 14 with circular end cap 19, and spring washer 3 mainly plays Anti-loosen stop; Sealed by two cover O type circle back-up rings 11 and O type circle 12 between square end cap 5 and cylinder bucket; Do not need between transparent cover 19 and cylinder bucket to seal; Piston 13 is fixed on piston rod 15 by round nut 7 and lock washer 8, installs O type circle 9 additional and O type circle back-up ring 10 seals between piston 13 and piston rod 15; The two-layer combined seal ring be made up of O type circle 12 and O type circle back-up ring 13 is installed between piston 13 and cylinder bucket 14 seal; Floating piston 18 is not fixedly connected with any structure, and is sealed by the two-layer combined seal ring be made up of O type circle 12 and O type circle back-up ring 13 between cylinder bucket 14, and has O type circle 9 and O type circle back-up ring 10 to seal between piston rod 15; Recover the external part that spring 21 is sleeved on piston rod 15, impact head 22 is connected with bolt shank 15 by screw thread, compresses and recovers spring.Be arranged in impact head 22 after rubber pad 23 gluing.
When a collision occurs, first rubber pad 23 contacts with object, there is deformation thereupon, avoid intermetallic direct collision, cylinder bucket 14 inner carrier 13 setting in motion simultaneously, fluid enters rod chamber e1 from rodless cavity e2 by damping hole, and the volume of rod chamber e1 is not enough to hold the fluid entered, so fluid promotes the volume of floating piston 16 motor adjustment rod chamber e1, in the process of fluid by damping hole, consume the energy of shock.When impacting the pressure in initial cylinder bucket 14 and being excessive, as shown in Figure 7, overflow spool 24 will compress relief valve spring 25, carry out pressure release, ensure that damping device can not damage, close when pressure to be reduced to a certain degree relief valve, enter damping process, regulation relief valve adjustment knob 26 can carry out the cracking pressure of regulation relief valve; Damping device reseting procedure promotes piston rod 15 by recovery spring 21 and resets, oil liquid pressure under the effect recovering spring 21 in rod chamber e1 increases, fluid promotes spherical valve core 29, compression nonreturn valve core spring 28, thus open check valve, fluid backflow rodless cavity e2, floating piston also thereupon motion reduce the volume of rod chamber e1, the volume differences coming in regulator solution force feed movement process by regulating the cavity between two pistons 13 and 16.Adjustment screw 20 is used for regulating the stroke cushioned.
A kind of passive passive hydraulic damping device.It mainly contains oil cylinder, piston, damper piston, and returning spring and impact head five part are formed.Device is arranged on other equipment by flange; Piston is integrated with damping hole, relief valve and one-way valve, plays buffer function; Pressure difference when damper piston is used to adjust piston movement inside and outside the change of oil chamber volume and oil cylinder; Recover spring fitting on the piston rod between the impact head and circular end cap of piston rod, mainly piston reset, does not provide cushion effect; The outer material of impact head is rubber is in order to protection-gear surface is not scratched.When device docks, when impact head touches pedestal, outer layer rubber is extruded, and base-plates surface can not be made to damage, impact force is transmitted to piston press hydraulic oil by piston rod simultaneously, hydraulic oil is discharged gradually by impact energy during damping hole, and because piston movement makes rodless cavity reduce, hydraulic oil will enter rod chamber, this provides space pressure release by floating piston is outwards mobile to hydraulic oil, such project organization is compact, and do not need extra oil circuit, reliability improves greatly.
Damping device is by flange and other equipment connections; Piston is integrated with throttle valve, relief valve and one-way valve, plays buffer function, pressure difference when floating piston is used to adjust piston movement inside and outside the change of oil chamber volume and oil cylinder; Recover spring fitting on the piston rod between the impact head and oil cylinder of piston rod, mainly make piston reset, do not provide cushion effect; The outer material of impact head is rubber, is in order to protection-gear surface is not scratched.
The end cap of one end of oil cylinder is the circular end cap with flange, and for being connected with the device of outside, be connected by turnbuckle with the square cylinder cap of the other end, it does not need to install any seal ring simultaneously.
Piston is integrated with relief valve, and damping hole and one-way valve, install seal ring additional between piston and oil cylinder, is used for mainly realizing pooling feature.
Floating piston is not fixed with piston rod and oil cylinder; Between piston and piston rod, between piston and oil cylinder, install seal ring additional.For regulating the volume of internal pressure and oil pocket, it relies on adjusting bolt to limit stroke.
Recover on the piston rod of spring fitting between impact head and circular end cap, its elasticity is very weak, is only to play the effect of piston top being replied position.
Be processed with screw thread in impact head to be connected with screw rod, fixing recovery spring, and impact head be processed with groove, for installing outermost rubber pad.
A kind of passive passive hydraulic damping device assembly process is as follows: piston and relief valve one-way valve are assembled, and be connected with piston rod; The piston external member assembled is loaded in cylinder bucket, and loads floating piston; First square cylinder cap is loaded, in the circular transparent cover of loading; Connect two end caps with turnbuckle, pretension, complete fixing; Be screwed into adjustment bolt, the stroke of adjustment floating piston; Being drawn by piston rod Shen to adjusting bolt position, in cylinder bucket, adding hydraulic oil, after filling it up with, tighten plug cock, retracting and pull piston rod, piston rod mouth down is left standstill a period of time; Again open plug cock and fill it up with hydraulic oil, and tighten plug cock, hydraulic oil overflows on a small quantity in plug cock rundown process, the oil that erasing is overflowed, and the air now in cylinder bucket is to get rid of; Add shock mount, installation shock head, compression is fixing spring also.
A kind of passive passive type hydraulic damping device of the utility model, it mainly contains oil cylinder 14, piston 13, floating piston 18, and returning spring 21 and impact head 22 5 part are formed.This device is arranged on other equipment by flange; Piston 13 is integrated with damping hole, relief valve and one-way valve, plays buffer function, pressure difference when floating piston 18 is used for adjusting piston movement inside and outside the change of oil chamber volume and oil cylinder; Recover spring 21 to be arranged on the piston rod 15 between impact head 22 and oil cylinder 14, Main Function is piston reset, does not provide cushion effect; The outer material of impact head is rubber is in order to protection-gear surface is not scratched.
One end of oil cylinder is circular cylinder cap 19 for there being flange, is used for being connected with outside device during use, is connected with the square cylinder cap 5 of the other end by turnbuckle 2,3,4 simultaneously.
Be integrated with relief valve in piston as Fig. 7, damping hole and one-way valve, as Fig. 8, install seal ring 11,12 additional between piston 13 and oil cylinder 14, are used for mainly realizing pooling feature.
Floating piston is floating, and floating piston is not connected and fixed with piston rod 15 or oil cylinder 14, installs seal ring 11 additional between piston and piston rod between piston and oil cylinder, 13,17,18, for regulating the volume of internal pressure and oil pocket, it relies on adjusting bolt 20 to limit stroke.
Recover spring fitting overlaps on the piston rod between the circular end cap 19 of impact head 22 and oil cylinder, and its elasticity is very weak, is only to play the effect that just piston top returns.
Be processed with screw thread in impact head to be connected with screw rod, compress and recover spring 21, and impact head is processed with groove, for installing outermost rubber pad 23.
Claims (3)
1. a passive passive type hydraulic damping device, it is characterized in that: comprise cylinder bucket, square end cap, circular end cap, piston rod, piston, impact head, square end cap and circular end cap are separately fixed at stem and the afterbody of cylinder bucket, it is inner that piston rod stretches to cylinder bucket through circular end cap, piston is arranged on piston rod upper end portion, piston arranges relief valve respectively, one-way valve and damping hole, upper cover of piston rod is equipped with floating piston, floating piston is between piston and circular end cap, piston and the square end cap above it and cylinder barrel-shaped become rodless cavity, piston and the floating piston below it and form rod chamber between cylinder bucket, damping hole is communicated with rod chamber and rodless cavity, the underpart of piston rod connects impact head, recovery spring is set between impact head and circular end cap.
2. the passive passive type hydraulic damping device of one according to claim 1, it is characterized in that: sealed by O type circle between piston and cylinder bucket inwall, seal by O type circle between floating piston and cylinder bucket inwall and piston rod, sealed by O type circle between square end cap and cylinder bucket.
3. the passive passive type hydraulic damping device of one according to claim 1 and 2, is characterized in that: the piston rod part of stretching out outside circular end cap arranges adjustment bolt, and round nose covers the tapped hole arranging and coordinate with adjustment bolt, and impact head arranges rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520257129.0U CN204677668U (en) | 2015-04-27 | 2015-04-27 | A kind of passive passive type hydraulic damping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520257129.0U CN204677668U (en) | 2015-04-27 | 2015-04-27 | A kind of passive passive type hydraulic damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204677668U true CN204677668U (en) | 2015-09-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520257129.0U Active CN204677668U (en) | 2015-04-27 | 2015-04-27 | A kind of passive passive type hydraulic damping device |
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| CN (1) | CN204677668U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489723A (en) * | 2017-08-24 | 2017-12-19 | 宁波力减震器有限公司 | damper with floating piston |
| CN107972691A (en) * | 2017-11-21 | 2018-05-01 | 四川辉冠金属材料有限公司 | Mine car buffer coupling |
| CN108343656A (en) * | 2018-01-31 | 2018-07-31 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of adaptive clamping device in deep-sea and its adaptive clamping means |
-
2015
- 2015-04-27 CN CN201520257129.0U patent/CN204677668U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489723A (en) * | 2017-08-24 | 2017-12-19 | 宁波力减震器有限公司 | damper with floating piston |
| CN107489723B (en) * | 2017-08-24 | 2019-05-21 | 宁波一力减震器有限公司 | Damper with floating piston |
| CN107972691A (en) * | 2017-11-21 | 2018-05-01 | 四川辉冠金属材料有限公司 | Mine car buffer coupling |
| CN108343656A (en) * | 2018-01-31 | 2018-07-31 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | A kind of adaptive clamping device in deep-sea and its adaptive clamping means |
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