CN108087480A - Minitype damper and its piston - Google Patents
Minitype damper and its piston Download PDFInfo
- Publication number
- CN108087480A CN108087480A CN201810085016.5A CN201810085016A CN108087480A CN 108087480 A CN108087480 A CN 108087480A CN 201810085016 A CN201810085016 A CN 201810085016A CN 108087480 A CN108087480 A CN 108087480A
- Authority
- CN
- China
- Prior art keywords
- slot
- piston rod
- damper
- piston
- annular groove
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3228—Constructional features of connections between pistons and piston rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
- F16F9/3405—Throttling passages in or on piston body, e.g. slots
Abstract
The present invention discloses a kind of Minitype damper and its piston, Minitype damper is hydraulic damper, its damping piston includes the body of piston, this one end of the inserting piston rod of body is formed with the slot of accommodating piston rod inserting, slot has the cell wall that opposite sides cooperation piston rod interference is seated, the other both sides of slot form aerial drainage straight slot, and the other end of body is formed with the current limliting through hole of straight-through slot slot bottom.Since current limliting through hole is located at the other end of the inserting piston rod of the body of piston by the present invention, so, the current limliting through hole set in response to damping parameter would not be deformed because of inserting piston rod, so that the damping parameter of Minitype damper is stablized, it can guarantee the requirement for meeting production, product quality is stablized, further to promote application of the damper in miniature fine equipment.
Description
Technical field
The present invention relates to damper technique field, the piston being specifically related in damper.
Background technology
Hydraulic damper is by controlling the feed speed of damping piston in desired scope, to realize that damping is made
.Some existing hydraulic dampers, damping piston are generally integrated the function of damping control valve.As shown in Figure 1, body
Circumferential annular groove 11 is formed on 1, the sealing ring 3 that sealing is formed with the casing wall of hydraulic cylinder 2, sealing ring are set on annular groove 11
Gap axially and radially is left between 3 and annular groove 11 so that sealing ring 3 can move axially in annular groove 11, pass through sealing
The control of the mobile realization damping of circle 3.This side channel wall of the inserting piston rod 4 of annular groove 11 is provided with a current limliting through hole 12, and is somebody's turn to do
Dredging flow groove 13 is distributed in the periphery wall of the body 1 of side.The opposite side cell wall of annular groove 11 is also provided with current by pass 14, and the aerial drainage leads to
Road 14 is close to 11 slot bottom of annular groove.In this way, when the piston rod 4 of damper is headed on retraction, sealing ring 3, which moves to, to be close to be provided with current limliting
This side channel wall of through hole 12, sealing ring 3 will close up the passage of the dredging flow groove 13 of 1 peripheral wall of body, and liquid can only be from current limliting
Through hole 12 is by the way that the damping action of damper is opened, and damping action, the size in 12 aperture of current limliting through hole are played to the retraction of piston rod
Determine the size of the damping dynamics of damper.And when piston rod 4 stretches out, sealing ring 3 moves to current by pass 14 this side channel wall,
The passage of dredging flow groove 13 is opened, and liquid can pass through damping from the dredging flow groove 13 that current limliting through hole 12 and periphery wall are laid simultaneously
The damping action of device is closed, and piston rod 4 can be resetted by quick stretch out.
It is well known that since structure is limited, the specification of damper is difficult to accomplish to minimize and be miniaturized, the reason is that resistance
The structure of the body of Buddhist nun's device is limited.Inserting and current limliting through hole due to piston rod are all located at the same end of body, and piston rod is to adopt
It is seated with interference, after the too small body of specification has inserted piston rod, the aperture for inevitably resulting in adjacent current limliting through hole becomes
Shape causes the damping parameter of damper to change, affects the quality of damper product.Therefore, traditional hydraulic damper is difficult
To realize micromation.
The content of the invention
It should the technical problem to be solved in the present invention is to provide a kind of piston of achievable hydraulic damper micromation and use
The damper of piston.
Used technical solution to solve above-mentioned technical problem：A kind of piston of Minitype damper, includes body, this
In body axial direction a wherein half inserting piston rod, the other half section shape into accommodating sealing ring annular groove, between sealing ring and annular groove
Gap axially and radially is left, several dredging flow grooves are laid on that section of peripheral wall of the inserting piston rod of body, the separate of annular groove lives
This side channel wall of stopper rod offers the current by pass of straight-through annular groove slot bottom, it is characterised in that：The inserting piston rod of the body
This one end be formed with the slot of accommodating piston rod inserting, slot has the cell wall that opposite sides cooperation piston rod interference is seated,
The other both sides of slot form aerial drainage straight slot, and the other end of body is formed with the current limliting through hole of straight-through slot slot bottom.
Used another technical solution to solve above-mentioned technical problem：A kind of Minitype damper, the Minitype damper
For hydraulic damper, it is characterised in that：The damping piston of the hydraulic damper uses the piston such as preceding solution.
Using advantageous effect caused by the present invention：Since current limliting through hole is located at the inserting piston rod of body by the present invention
The other end, in this way, the current limliting through hole set in response to damping parameter would not be deformed because of inserting piston rod so that miniature resistance
The damping parameter of Buddhist nun's device is stablized, and can guarantee the requirement for meeting production, product quality is stablized, further to promote damper micro-
Application in the fine equipment of type.
Description of the drawings
Fig. 1 is the partial schematic diagram of conventional damper；
Fig. 2 is the structure diagram of damping piston of the present invention；
Fig. 3 is the structure diagram of damper of the present invention.
Specific embodiment
As shown in Figure 2,3, a kind of Minitype damper, the Minitype damper be hydraulic damper, the hydraulic damper bag
Damping piston is included, which includes body 1, the wherein half inserting piston rod 2 in 1 axial direction of body, the other half section shape
Into the annular groove 11 of accommodating sealing ring 3, gap axially and radially, the inserting piston of body 1 are left between sealing ring 3 and annular groove 11
Several dredging flow grooves 12 are laid on that section of peripheral wall of bar 2, this side channel wall of the separate piston rod 2 of annular groove 11 is offered close to annular groove
The current by pass 13 of 11 slot bottoms.In the present invention, this one end of the inserting piston rod 2 of the body 1 is formed with accommodating piston rod 2
The slot 14 of inserting, slot 14 have the cell wall 15 that opposite sides cooperation 2 interference of piston rod is seated, the other both sides shape of slot 14
Into aerial drainage straight slot 16, the other end of body 1 is formed with the current limliting through hole 17 of straight-through 14 slot bottom of slot.
In the slot 14 of end 1 end of insertion body of piston rod 2, the meeting clamping piston of cell wall 15 bar 2 of 14 both sides of slot,
In addition the aerial drainage straight slot 16 of both sides connects the current limliting through hole 17 of 1 other end of body by 14 slot bottom of slot.In this way, piston rod 2
Inserting and current limliting through hole 17 just set up separately at the both ends of body 1, when inserting body 1, only result in the deformation of that end of slot 14, without
This end of current limliting through hole 17 is influenced, the aperture of current limliting through hole 17 is indeformable, can keep the flow of setting always.Since slot 14 is
By the 15 clamping piston bar 2 of cell wall of both sides, and in addition the aerial drainage straight slot 16 of both sides is as flowing through letting out for 17 liquid of current limliting through hole
Circulation road, aperture are much larger than the aperture of current limliting through hole 17, and the deformation of aerial drainage straight slot 16 is not interfere with changing for damping parameter
Become, thus damper product quality using the present invention is stablized, the micromation for being more advantageous to damper improves.
For Minitype damper in the present invention using existing hydraulic damper, damping piston uses above-mentioned piston.It can be with
Know, the cylinder barrel 4 of the hydraulic damper is separated into two sections of cylinder barrels, and the separating part 41 between two sections of cylinder barrels is provided with intercommunicating pore
42, hydraulic oil and damping piston are housed in one section of cylinder barrel 43, another section of cylinder barrel 44 houses seal rubber plug 5 and keep seal rubber plug 5
The spring 6 of 41 trend of separating part is shifted to, which plays its rear and front end of obstruction seals, is inserted with damping piston
Piston rod 2 through separating part 41, seal rubber plug 5, spring 6, stretch out cylinder barrel outside.
When piston rod 2 is headed on retraction, the sealing ring 3 on piston only 1 moves to this side channel wall for being close to dredging flow groove 12,
Sealing ring 3 will close up the passage of the dredging flow groove 12 of 1 peripheral wall of body, and liquid can only be from current limliting through hole 17 by through inserting
16 aerial drainage of aerial drainage straight slot of 14 both sides of slot, the damping action of damper are opened, and damping action is played to the retraction of piston rod 2.Piston
Bar 2 can occupy the space in cylinder barrel while retraction cylinder barrel, and the hydraulic oil of 43 that section of cylinder barrel can flow into cylinder by intercommunicating pore 42
44 that section of cylinder, drive seal rubber plug 5 that the elastic force of spring 6 is overcome to be moved away from separating part 41.After removing external force, under the action of spring 6,
Seal rubber plug 5 shifts to separating part 41 by driving, and the hydraulic oil of 44 that section of cylinder barrel can pass back into cylinder barrel 43 that section, the pressure of hydraulic oil
Piston rod 2 can be driven to stretch out, sealing ring 3 moves to current by pass 13 this side channel wall at this time, and the passage of dredging flow groove 12 is opened, liquid
Body can be simultaneously from the dredging flow groove 12 that current limliting through hole 17 and periphery wall are laid by the way that the damping action of damper is closed, and piston rod 2 can
It is resetted by quick stretch out.
Claims (2)
1. a kind of piston of Minitype damper includes body, the upward wherein half of body shaft inserts piston rod, the other half
Section shape leaves gap axially and radially, the inserting piston rod of body into the annular groove of accommodating sealing ring between sealing ring and annular groove
That section of peripheral wall on lay several dredging flow grooves, this side channel wall of the separate piston rod of annular groove offers letting out for straight-through annular groove slot bottom
Circulation road, it is characterised in that：This one end of the inserting piston rod of the body is formed with the slot of accommodating piston rod inserting, slot
With the cell wall that opposite sides cooperation piston rod interference is seated, the other both sides of slot form aerial drainage straight slot, the other end of body
It is formed with the current limliting through hole of straight-through slot slot bottom.
2. a kind of Minitype damper, the Minitype damper is hydraulic damper, it is characterised in that：The resistance of the hydraulic damper
Buddhist nun's piston uses piston as described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810085016.5A CN108087480A (en) | 2018-01-29 | 2018-01-29 | Minitype damper and its piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810085016.5A CN108087480A (en) | 2018-01-29 | 2018-01-29 | Minitype damper and its piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108087480A true CN108087480A (en) | 2018-05-29 |
Family
ID=62182586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810085016.5A Pending CN108087480A (en) | 2018-01-29 | 2018-01-29 | Minitype damper and its piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108087480A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113474587A (en) * | 2019-03-04 | 2021-10-01 | Ｋｙｂ株式会社 | Buffer device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201666069U (en) * | 2009-09-15 | 2010-12-08 | 卫德义 | Precise micropore hydraulic damper |
| CN102203369A (en) * | 2008-10-23 | 2011-09-28 | 拉玛德卡尼股份公司 | Damper |
| DE102012224392A1 (en) * | 2011-12-27 | 2013-06-27 | Hitachi Automotive Systems, Ltd. | Gas spring for use in e.g. smoke delivery window, has recess region arranged at position, which is low range of piston or disk valve, in operation so that cylinder is arranged inclined or parallel to horizontal plane |
| CN203717770U (en) * | 2014-03-15 | 2014-07-16 | 唐善培 | Damping piston of hydraulic damper |
| CN203717769U (en) * | 2014-03-15 | 2014-07-16 | 唐善培 | Damping piston with high damping coefficient for hydraulic damper |
| US20150198214A1 (en) * | 2014-01-10 | 2015-07-16 | Toyota Jidosha Kabushiki Kaisha | Shock absorber |
| CN206111923U (en) * | 2016-10-26 | 2017-04-19 | 谭发杨 | Be applied to piston structure of attenuator |
| CN208024754U (en) * | 2018-01-29 | 2018-10-30 | 佛山市南海区然铭力佳利五金制品有限公司 | Minitype damper and its piston |
-
2018
- 2018-01-29 CN CN201810085016.5A patent/CN108087480A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102203369A (en) * | 2008-10-23 | 2011-09-28 | 拉玛德卡尼股份公司 | Damper |
| CN201666069U (en) * | 2009-09-15 | 2010-12-08 | 卫德义 | Precise micropore hydraulic damper |
| DE102012224392A1 (en) * | 2011-12-27 | 2013-06-27 | Hitachi Automotive Systems, Ltd. | Gas spring for use in e.g. smoke delivery window, has recess region arranged at position, which is low range of piston or disk valve, in operation so that cylinder is arranged inclined or parallel to horizontal plane |
| US20150198214A1 (en) * | 2014-01-10 | 2015-07-16 | Toyota Jidosha Kabushiki Kaisha | Shock absorber |
| CN203717770U (en) * | 2014-03-15 | 2014-07-16 | 唐善培 | Damping piston of hydraulic damper |
| CN203717769U (en) * | 2014-03-15 | 2014-07-16 | 唐善培 | Damping piston with high damping coefficient for hydraulic damper |
| CN206111923U (en) * | 2016-10-26 | 2017-04-19 | 谭发杨 | Be applied to piston structure of attenuator |
| CN208024754U (en) * | 2018-01-29 | 2018-10-30 | 佛山市南海区然铭力佳利五金制品有限公司 | Minitype damper and its piston |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113474587A (en) * | 2019-03-04 | 2021-10-01 | Ｋｙｂ株式会社 | Buffer device |
| CN113474587B (en) * | 2019-03-04 | 2024-02-23 | Ｋｙｂ株式会社 | Buffer device |
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| PB01 | Publication | ||
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