CN107477133A - A kind of single-piston rod hydraulic damper - Google Patents
A kind of single-piston rod hydraulic damper Download PDFInfo
- Publication number
- CN107477133A CN107477133A CN201710969864.8A CN201710969864A CN107477133A CN 107477133 A CN107477133 A CN 107477133A CN 201710969864 A CN201710969864 A CN 201710969864A CN 107477133 A CN107477133 A CN 107477133A
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- Prior art keywords
- piston rod
- section
- hydraulic cylinder
- cylinder
- piston
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Classifications
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- 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
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
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- 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
- F16F9/3235—Constructional features of cylinders
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Actuator (AREA)
Abstract
The invention discloses a kind of single-piston rod hydraulic damper, including hydraulic cylinder, the piston rod stretched out to left end is coaxially provided with hydraulic cylinder, it is provided with hydraulic cylinder and is used for sleeve and piston that piston rod is positioned and is oriented to, the sleeve and piston are fixed on hydraulic cylinder inwall and are slidably connected with piston rod, multiple first springs are circumferentially with the spaced winding of sleeve and piston, cylinder sliding block is fixed with the right part of piston rod, the right-hand member of cylinder sliding block is fixed with core print seat, the surge chamber of sealing is formed on the left of core print seat between piston rod right-hand member, the horizontal channel being connected with surge chamber is provided with inside the front end of piston rod, the Vertical Channel being connected with horizontal channel is provided with the piston rod on the left of cylinder sliding block；Tool for oil cylinder is provided with the hydraulic cylinder on the right side of piston；The single-piston rod hydraulic damper for the low frequency large amplitude that volume compact, load range are big, damping force is big, the reliability and stability that is swift in motion is good is reached.
Description
Technical field
The invention belongs to damper technique field, particularly belongs to a kind of single-piston rod hydraulic damper.
Background technology
Hydraulic damper is a kind of sensitive attenuation by absorption shaking device of speed responsing, it can absorb, damping vibrations with
The energy of impact, exempted from so as to reduce the critical facility such as the dynamic response of component, protection building, engineering structure, mechanical structure
The jerk caused by earthquake, blast, natural wind etc. destroys.Pipeline hydraulic damper is a kind of common hydraulic damping
Device, when in use, one end of pipeline hydraulic damper are installed on pipeline, and the other end is arranged on fixed body, and both ends can produce
Raw relative motion.Mainly there are two aspects to its performance requirement：When low speed stroke resistance, second, locking velocity, works as pipeline
Because from being thermally deformed wait influences, when radial motion speed is relatively low, the moving part of pipeline hydraulic damper is with pipeline one
Low-speed motion is played, at this moment pipeline hydraulic damper is low speed stroke resistance to additional force caused by pipeline；When the footpath of pipeline
When reaching certain value to the speed of vibration, pipeline hydraulic damper can produce locking, and speed now is locking velocity, together
When, pipeline hydraulic damper can produce a larger power, as the 3rd fulcrum of pipeline, protective conduit.
At present, the design of pipeline hydraulic damper manufacture view is simple, and cylinder body manufacture is coarse, reaction sensitivity is inadequate, it is impossible to
Freely shift, sealing, action stability are unreliable, can not meet domestic high-end manufacture product demand.
The content of the invention
The present invention seeks to propose a kind of single-piston rod hydraulic pressure resistance to solve above-mentioned problems of the prior art
Buddhist nun's device, the present invention are adopted the technical scheme that to reach above-mentioned purpose：
A kind of single-piston rod hydraulic damper, including hydraulic cylinder, the piston stretched out to left end is coaxially provided with hydraulic cylinder
Bar, it is provided with hydraulic cylinder and is used for sleeve and piston that piston rod is positioned and is oriented to, the sleeve and piston are fixed on hydraulic pressure
It is slidably connected on inboard wall of cylinder block and with piston rod, multiple first springs is circumferentially with the spaced winding of sleeve and piston, in piston rod
Right part be fixed with cylinder sliding block, the right-hand member of cylinder sliding block is fixed with core print seat, is formed on the left of core print seat between piston rod right-hand member
The surge chamber of sealing, the horizontal channel being connected with surge chamber is provided with inside the front end of piston rod, on the left of cylinder sliding block
Piston rod is provided with the Vertical Channel being connected with horizontal channel；Tool for oil cylinder, institute are provided with the hydraulic cylinder on the right side of piston
State tool for oil cylinder and be divided into smooth section, emptying section, seal section, thread segment and linkage section, smooth section and hydraulic cylinder from left to right
Gap is provided between internal wall, circumferencial direction unloads oilhole provided with multiple in emptying section Shangrao, in the hydraulic pressure corresponding with emptying section
Inboard wall of cylinder block is provided with buffering and stitched, and is provided with seal between seal section and hydraulic cylinder inwall, in thread segment and hydraulic cylinder
Wall is threadedly coupled, and internal thread hole is provided with linkage section, the connector for fixing object to be buffered is connected with screwed hole；
The accumulator of left end opening is provided with the left half of tool for oil cylinder, the cylinder sliding block slides with accumulator inner wall sealing to be connected
Connect, the accumulator unloads oilhole and connected with multiple, and hole is communicated between accumulator and screwed hole, equipped with end in intercommunicating pore
It is stifled.
Preferably, multiple second springs are circumferentially with the spaced winding of core print seat and accumulator right-hand member inwall.
Preferably, the multiple oilhole that unloads is staggered successively from left to right.
Preferably, the smooth section is divided into Channel Group's section and gap section, Channel Group's section and hydraulic cylinder from left to right
Interval is provided between inwall, is provided with gap between gap section and hydraulic cylinder inwall, the distance at the interval more than gap away from
From.
Preferably, the positioning sleeve support for being used for supporting the first spring is provided with the piston rod between sleeve and piston.
Preferably, the connector includes connecting rod, and the left end of connecting rod is threadedly coupled with screwed hole, and the right-hand member screw thread of connecting rod connects
It is connected to end joints bearing.
The advantageous effect of present invention is that：By smooth section on tool for oil cylinder, emptying section, seal section, thread segment and
The setting of linkage section, has reached that volume compact, load range are big, damping force is big, the good low frequency of reliability and stability that is swift in motion is big
The single-piston rod hydraulic damper of amplitude.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of single-piston rod hydraulic damper, including hydraulic cylinder 2, it is coaxially provided with hydraulic cylinder 2
The piston rod 1 stretched out to left end, it is provided with hydraulic cylinder 2 and is used for sleeve 23 and piston 20 that piston rod 1 is positioned and is oriented to, institute
State sleeve 23 and piston 20 is fixed on the inwall of hydraulic cylinder 2 and is slidably connected with piston rod 1, between sleeve 23 and piston 20
Around multiple first springs 22 are circumferentially with, cylinder sliding block 19 is fixed with the right part of piston rod 1, the right-hand member of cylinder sliding block 19 is consolidated
Surely there is core print seat 18, the surge chamber 17 of sealing is formed between the left side of core print seat 18 and the right-hand member of piston rod 1, inside the front end of piston rod 1
Provided with the horizontal channel 4 being connected with surge chamber 17, it is provided with and the phase of horizontal channel 4 on the piston rod 1 in the left side of cylinder sliding block 19
The Vertical Channel 3 of connection；Be provided with tool for oil cylinder in the hydraulic cylinder 2 on the right side of piston 19, the tool for oil cylinder from left to right according to
It is secondary to be divided into smooth section, emptying section, seal section, thread segment 10 and linkage section 11, between being provided between smooth section and the inwall of hydraulic cylinder 2
Gap, in emptying section Shangrao, circumferencial direction unloads oilhole 7 provided with multiple, is provided with hydraulic cylinder 2 inwall corresponding with emptying section
Buffering seam 8, is provided with seal 9 between seal section and the inwall of hydraulic cylinder 2, and thread segment 10 connects with the inner thread of hydraulic cylinder 2
Connect, be provided with internal thread hole in linkage section 11, the connector for fixing object to be buffered, the company are connected with screwed hole
Fitting includes connecting rod 13, and the left end of connecting rod 13 is threadedly coupled with screwed hole, and the right-hand member of connecting rod 13 is threaded with end joints axle
Hold 12；The accumulator 16 of left end opening, the cylinder sliding block 19 and the inwall of accumulator 16 are provided with the left half of tool for oil cylinder
Sealing is slidably connected, and the accumulator 16 is connected with multiple oilholes 7 that unload, and hole is communicated between accumulator 16 and screwed hole,
Equipped with end stifled 14 in intercommunicating pore.
Auxiliary cushioning effect is played while hydraulic oil cushioning effect in order to further coordinate, in core print seat 18 and accumulator 16
The spaced winding of right-hand member inwall is circumferentially with multiple second springs 15；Unload oilhole 7 by multiple and be staggered successively from left to right, and adjacent two
The individual interval unloaded between oilhole also tapers into, and the diameter for unloading oilhole of high order end is maximum, so as to drive cylinder to slide in piston rod 1
Block 19 unloads oil pressure during compressing to the right gradually increase to further function as cushioning effect, reaches the effect of more smooth transition
Fruit.
The smooth section is divided into Channel Group's section and gap section from left to right, Channel Group's section and the inwall of hydraulic cylinder 2 it
Between be provided with interval 5, be provided with gap 6 between gap section and hydraulic cylinder inwall, the distance of the distance at the interval 5 more than gap 6；
The positioning sleeve support 21 for being used for supporting the first spring 22 is provided with piston rod 1 between sleeve 23 and piston 20.
The present invention at work, pipeline is fixed in end joints bearing 12, the left end of piston rod 1 is fixed on into fixation
On body, when pipeline, which runs into jerk, presses to fixed body direction, piston rod 1 drives the core print seat 18 of cylinder sliding block 19 to move right together
Dynamic, so as to extrude the oil in reserve in accumulator 16, oil in reserve passes through, unload oilhole 7 successively by buffering seam 8, gap 6, interval 5,
Vertical Channel 3 and horizontal channel 4 enter surge chamber 17；When pipeline jerk round about, piston rod and oil in reserve
Action to pipeline on the contrary, so that play a part of buffer damping.
By the setting of smooth section on tool for oil cylinder, emptying section, seal section, thread segment and linkage section, it is tight volume has been reached
Gather, the single-piston rod hydraulic damper for the low frequency large amplitude that load range is big, damping force is big, the reliability and stability that is swift in motion is good.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown is only for ease of the description present invention and simplifies description, rather than instruction or the device for inferring meaning
Or element must have specific orientation, be specific azimuth configuration and operation, thus it is not intended that in present invention protection
The limitation of appearance.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic,
But these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (6)
1. a kind of single-piston rod hydraulic damper, it is characterised in that including hydraulic cylinder, be coaxially provided with to the left in hydraulic cylinder
The piston rod stretched out is held, is provided with hydraulic cylinder and is used for sleeve and piston that piston rod is positioned and is oriented to, the sleeve and work
Plug is fixed on hydraulic cylinder inwall and is slidably connected with piston rod, and multiple first bullets are circumferentially with the spaced winding of sleeve and piston
Spring, cylinder sliding block is fixed with the right part of piston rod, the right-hand member of cylinder sliding block is fixed with core print seat, and core print seat left side and piston rod are right
The surge chamber of sealing is formed between end, the horizontal channel being connected with surge chamber is provided with inside the front end of piston rod, in cylinder
Piston rod on the left of sliding block is provided with the Vertical Channel being connected with horizontal channel；Storage is provided with the hydraulic cylinder on the right side of piston
Cylinder body, the tool for oil cylinder are divided into smooth section, emptying section, seal section, thread segment and linkage section, smooth section from left to right
Gap is provided between hydraulic cylinder inwall, circumferencial direction unloads oilhole provided with multiple in emptying section Shangrao, relative with emptying section
The hydraulic cylinder inwall answered is provided with buffering and stitched, and seal, thread segment and liquid are provided between seal section and hydraulic cylinder inwall
Inboard wall of cylinder block threaded connection is pressed, internal thread hole is provided with linkage section, is connected with screwed hole for fixing object to be buffered
Connector；The accumulator of left end opening is provided with the left half of tool for oil cylinder, the cylinder sliding block and oil storage chamber interior walls are close
Envelope is slidably connected, and the accumulator unloads oilhole and connected with multiple, hole is communicated between accumulator and screwed hole, in intercommunicating pore
It is interior stifled equipped with end.
2. single-piston rod hydraulic damper according to claim 1, it is characterised in that in core print seat and accumulator right-hand member inwall
Spaced winding be circumferentially with multiple second springs.
3. single-piston rod hydraulic damper according to claim 2, it is characterised in that the multiple to unload oilhole from left to right
It is staggered successively.
4. single-piston rod hydraulic damper according to claim 3, it is characterised in that the smooth section is from left to right successively
It is divided into Channel Group's section and gap section, interval, gap section and hydraulic cylinder inwall is provided between Channel Group's section and hydraulic cylinder inwall
Between be provided with gap, the distance at the interval is more than the distance in gap.
5. the single-piston rod hydraulic damper according to any one of Claims 1-4, it is characterised in that in sleeve and piston
Between piston rod be provided be used for support the first spring positioning sleeve support.
6. the single-piston rod hydraulic damper according to any one of Claims 1-4, it is characterised in that the connector bag
Connecting rod is included, the left end of connecting rod is threadedly coupled with screwed hole, and the right-hand member of connecting rod is threaded with end joints bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710969864.8A CN107477133B (en) | 2017-10-18 | 2017-10-18 | A kind of single-piston rod hydraulic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710969864.8A CN107477133B (en) | 2017-10-18 | 2017-10-18 | A kind of single-piston rod hydraulic damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107477133A true CN107477133A (en) | 2017-12-15 |
| CN107477133B CN107477133B (en) | 2019-09-17 |
Family
ID=60605313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710969864.8A Active CN107477133B (en) | 2017-10-18 | 2017-10-18 | A kind of single-piston rod hydraulic damper |
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| Country | Link |
|---|---|
| CN (1) | CN107477133B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518147A (en) * | 2018-01-18 | 2018-09-11 | 广州丹德自动化科技有限公司 | Cold-storage door Self-closing buffer |
| WO2022241905A1 (en) * | 2021-05-20 | 2022-11-24 | 南京驭逡通信科技有限公司 | Industrial robot joint active damping device and damping method therefor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4133415A (en) * | 1976-04-28 | 1979-01-09 | Dressell Jr Richard G | Linear force shock absorber |
| KR20090100545A (en) * | 2008-03-20 | 2009-09-24 | 주식회사 만도 | Shock absorber |
| CN202118177U (en) * | 2011-05-24 | 2012-01-18 | 扬州市明瑞气弹簧有限公司 | Low-pressure controllable gas spring |
| CN203322140U (en) * | 2013-05-13 | 2013-12-04 | 南阳淅减汽车减振器有限公司 | Shock absorber recovery damping valve |
| CN106763438A (en) * | 2017-02-03 | 2017-05-31 | 国网江苏省电力公司电力科学研究院 | Hydraulic bjuffer |
-
2017
- 2017-10-18 CN CN201710969864.8A patent/CN107477133B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4133415A (en) * | 1976-04-28 | 1979-01-09 | Dressell Jr Richard G | Linear force shock absorber |
| KR20090100545A (en) * | 2008-03-20 | 2009-09-24 | 주식회사 만도 | Shock absorber |
| CN202118177U (en) * | 2011-05-24 | 2012-01-18 | 扬州市明瑞气弹簧有限公司 | Low-pressure controllable gas spring |
| CN203322140U (en) * | 2013-05-13 | 2013-12-04 | 南阳淅减汽车减振器有限公司 | Shock absorber recovery damping valve |
| CN106763438A (en) * | 2017-02-03 | 2017-05-31 | 国网江苏省电力公司电力科学研究院 | Hydraulic bjuffer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518147A (en) * | 2018-01-18 | 2018-09-11 | 广州丹德自动化科技有限公司 | Cold-storage door Self-closing buffer |
| CN108518147B (en) * | 2018-01-18 | 2024-01-12 | 广州中臣丹德智能装备科技有限公司 | Self-closing buffer device for cold storage door |
| WO2022241905A1 (en) * | 2021-05-20 | 2022-11-24 | 南京驭逡通信科技有限公司 | Industrial robot joint active damping device and damping method therefor |
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| Publication number | Publication date |
|---|---|
| CN107477133B (en) | 2019-09-17 |
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