CN107477133B - A kind of single-piston rod hydraulic damper - Google Patents

A kind of single-piston rod hydraulic damper Download PDF

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Publication number
CN107477133B
CN107477133B CN201710969864.8A CN201710969864A CN107477133B CN 107477133 B CN107477133 B CN 107477133B CN 201710969864 A CN201710969864 A CN 201710969864A CN 107477133 B CN107477133 B CN 107477133B
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CN
China
Prior art keywords
piston rod
cylinder
hydraulic cylinder
piston
hydraulic
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CN201710969864.8A
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Chinese (zh)
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CN107477133A (en
Inventor
刘克申
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Converge Grand Precision Equipment Manufacture Ltd Co In Henan Province
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Converge Grand Precision Equipment Manufacture Ltd Co In Henan Province
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Priority to CN201710969864.8A priority Critical patent/CN107477133B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10Springs, 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
    • F16F9/14Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16Devices 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
    • F16F9/18Devices 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
    • F16F9/19Devices 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/3207Constructional features
    • F16F9/3235Constructional features of cylinders

Abstract

The invention discloses a kind of single-piston rod hydraulic dampers, including hydraulic cylinder, the piston rod stretched out to left end is coaxially provided in hydraulic cylinder, the sleeve and piston for positioning and being oriented to for piston rod are equipped in hydraulic cylinder, the sleeve and piston are fixed on hydraulic cylinder inner wall and are slidably connected with piston rod, multiple first springs are circumferentially in the spaced winding of sleeve and piston, cylinder sliding block is fixed in the right part of piston rod, the right end 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 end, the horizontal channel being connected with surge chamber is equipped with inside the front end of piston rod, the Vertical Channel being connected with horizontal channel is equipped on the piston rod on the left of cylinder sliding block;Tool for oil cylinder is equipped in 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

A kind of single-piston rod hydraulic damper
Technical field
The invention belongs to damper technique fields, particularly belong to a kind of single-piston rod hydraulic damper.
Background technique
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, to reduce the dynamic response of component, the critical facilities such as protection building, engineering structure, mechanical structure from The jerk due to caused by earthquake, explosion, 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 mounted on fixed body, and both ends can produce Raw relative motion.It is main to its performance requirement that there are two aspects: first is that low speed stroke resistance, second is that locking velocity, works as pipeline Due to from being thermally deformed equal influence, when radial motion speed is lower, the moving part of pipeline hydraulic damper is with pipeline one Low-speed motion is played, the additional force that at this moment pipeline hydraulic damper generates pipeline is low speed stroke resistance;When the diameter of pipeline When reaching certain value to the speed of vibration, pipeline hydraulic damper can generate locking, and speed at this time is locking velocity, together When, pipeline hydraulic damper can generate a biggish power, as the third fulcrum of pipeline, protective conduit.
Currently, the design of pipeline hydraulic damper manufacture view is simple, cylinder body manufacture is coarse, reaction sensitivity is inadequate, cannot It freely shifts, leakproofness, action stability are unreliable, can not meet domestic high-end manufacture product demand.
Summary of the invention
Object of the present invention is to propose a kind of hydraulic resistance of single-piston rod to solve above-mentioned problems of the prior art Buddhist nun's device, the present invention are adopted the technical scheme that in order to achieve the above objectives:
A kind of single-piston rod hydraulic damper, including hydraulic cylinder are coaxially provided with to left end stretching in hydraulic cylinder Piston rod is equipped with the sleeve and piston for positioning and being oriented to for piston rod in hydraulic cylinder, and the sleeve and piston are fixed on It is slidably connected on hydraulic cylinder inner wall and with piston rod, multiple first springs is circumferentially in the spaced winding of sleeve and piston, in work The right part of stopper rod is fixed with cylinder sliding block, and the right end of cylinder sliding block is fixed with core print seat, between core print seat left side and piston rod right end The surge chamber for forming sealing is equipped with the horizontal channel being connected with surge chamber inside the front end of piston rod, left in cylinder sliding block The piston rod of side is equipped with the Vertical Channel being connected with horizontal channel;Oil storage cylinder is equipped in the hydraulic cylinder on the right side of piston Body, the tool for oil cylinder are divided into smooth section, emptying section, seal section, thread segment and linkage section, smooth section and liquid from left to right It presses and is equipped with gap between inboard wall of cylinder block, oilhole is unloaded equipped with multiple in emptying section Shangrao circumferencial direction, corresponding with emptying section Hydraulic cylinder inner wall is equipped with buffering seam, and sealing element, thread segment and hydraulic cylinder are equipped between seal section and hydraulic cylinder inner wall Internal wall is threadedly coupled, and internal thread hole is equipped in linkage section, the company for fixing object to be buffered is connected in threaded hole Fitting;The oil storage room of left end opening is equipped in the left half of tool for oil cylinder, the cylinder sliding block and the sealing of oil storage chamber interior walls are slided Dynamic connection, the oil storage room unload oilhole and are connected to, equipped with intercommunicating pore between oil storage room and threaded hole, match in intercommunicating pore with multiple There is end stifled.
Preferably, multiple second springs are circumferentially in the spaced winding of core print seat and oil storage room right end inner wall.
Preferably, the multiple oilhole that unloads successively is staggered 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 Be equipped with interval between inner wall, be equipped with gap between gap section and hydraulic cylinder inner wall, the distance at the interval be greater than gap away from From.
Preferably, the positioning sleeve support for being used to support the first spring is equipped on the piston rod between sleeve and piston.
Preferably, the connector includes connecting rod, and the left end of connecting rod is threadedly coupled with threaded hole, and the right end 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.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
The present invention is further described with reference to the accompanying drawing.
As shown in Figure 1, a kind of single-piston rod hydraulic damper, including hydraulic cylinder 2, it is coaxially provided in hydraulic cylinder 2 The piston rod 1 stretched out to left end is equipped with the sleeve 23 and piston 20 for positioning and being oriented to for piston rod 1, institute in hydraulic cylinder 2 It states sleeve 23 and piston 20 is fixed on 2 inner wall of hydraulic cylinder and is slidably connected with piston rod 1, between sleeve 23 and piston 20 Around multiple first springs 22 are circumferentially with, it is fixed with cylinder sliding block 19 in the right part of piston rod 1, the right end of cylinder sliding block 19 is solid Surely there is core print seat 18, the surge chamber 17 of sealing is formed between 18 left side of core print seat and 1 right end of piston rod, inside the front end of piston rod 1 Equipped with the horizontal channel 4 being connected with surge chamber 17, it is equipped with and 4 phase of horizontal channel on the piston rod 1 in 19 left side of cylinder sliding block The Vertical Channel 3 of connection;Be equipped 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 equipped between 2 inner wall of smooth section and hydraulic cylinder Gap is unloaded oilhole 7 equipped with multiple in emptying section Shangrao circumferencial direction, is equipped on 2 inner wall of hydraulic cylinder corresponding with emptying section Buffering seam 8, is equipped with sealing element 9 between 2 inner wall of seal section and hydraulic cylinder, and thread segment 10 and 2 inner thread of hydraulic cylinder connect It connects, internal thread hole is equipped in linkage section 11, the connector for fixing object to be buffered, the company are connected in threaded hole Fitting includes connecting rod 13, and the left end of connecting rod 13 is threadedly coupled with threaded hole, and the right end of connecting rod 13 is threaded with end joints axis Hold 12;The oil storage room 16 of left end opening, the cylinder sliding block 19 and 16 inner wall of oil storage room are equipped in the left half of tool for oil cylinder Sealing is slidably connected, and the oil storage room 16 is connected to multiple oilholes 7 that unload, and intercommunicating pore is equipped between oil storage room 16 and threaded hole, Equipped with end stifled 14 in intercommunicating pore.
Auxiliary buffer function is played while hydraulic oil buffer function in order to further cooperate, in core print seat 18 and oil storage room 16 The spaced winding of right end inner wall is circumferentially with multiple second springs 15;It unloads oilhole 7 by multiple and is successively staggered from left to right, and adjacent two A interval unloaded between oilhole also gradually becomes smaller, and the diameter for unloading oilhole of left end is maximum, to drive cylinder sliding in piston rod 1 Block 19 unloads oil pressure during compressing to the right and is gradually increased the effect for reaching more smooth transition to further function as buffer function Fruit.
The smooth section is divided into Channel Group's section and gap section from left to right, Channel Group section and 2 inner wall of hydraulic cylinder it Between be equipped with interval 5, gap section and hydraulic cylinder inner wall between be equipped with gap 6, it is described interval 5 distance be greater than gap 6 distance; The positioning sleeve support 21 for being used to support the first spring 22 is equipped on piston rod 1 between sleeve 23 and piston 20.
At work, pipeline is fixed in end joints bearing 12 by the present invention, and the left end of piston rod 1 is fixed on fixation On body, when pipeline, which encounters jerk, presses to fixed body direction, piston rod 1 drives 19 core print seat 18 of cylinder sliding block to move right together Dynamic, to squeeze the oil in reserve in oil storage room 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 Movement is on the contrary, to play the role of buffer damping to pipeline.
By the setting of smooth section, emptying section, seal section, thread segment and linkage section on tool for oil cylinder, it is tight volume has been reached It gathers, 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 present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute The orientation or positional relationship shown is only the present invention and simplified description for ease of description, rather than indicates or imply signified device Or element must have a particular orientation, construct and operate for specific orientation, thus should not be understood as 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 Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features, But these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and Range.

Claims (5)

1. a kind of single-piston rod hydraulic damper, which is characterized in that including hydraulic cylinder, be coaxially provided with to the left in hydraulic cylinder The piston rod stretched out is held, the sleeve and piston for positioning and being oriented to for piston rod, the sleeve and work are equipped in hydraulic cylinder Plug is fixed on hydraulic cylinder inner wall and is slidably connected with piston rod, is circumferentially with multiple first bullets in the spaced winding of sleeve and piston Spring is fixed with cylinder sliding block in the right part of piston rod, and the right end of cylinder sliding block is fixed with core print seat, and core print seat left side and piston rod are right The surge chamber that sealing is formed between end is equipped with the horizontal channel being connected with surge chamber, in cylinder inside the front end of piston rod Piston rod on the left of sliding block is equipped with the Vertical Channel being connected with horizontal channel;Storage is equipped in 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 It is equipped with gap between hydraulic cylinder inner wall, oilhole is unloaded equipped with multiple in emptying section Shangrao circumferencial direction, opposite with emptying section The hydraulic cylinder inner wall answered is equipped with buffering seam, and sealing element, thread segment and liquid are equipped between seal section and hydraulic cylinder inner wall It presses inboard wall of cylinder block to be threadedly coupled, internal thread hole is equipped in linkage section, is connected in threaded hole for fixing object to be buffered Connector;The oil storage room of left end opening is equipped in 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 oil storage room unloads oilhole and be connected to multiple, intercommunicating pore is equipped between oil storage room and threaded hole, in intercommunicating pore It is interior stifled equipped with end;The multiple oilhole that unloads successively is staggered from left to right, and the two neighboring interval unloaded between oilhole is also gradually Become smaller, the diameter for unloading oilhole of left end is maximum.
2. single-piston rod hydraulic damper according to claim 1, which is characterized in that in core print seat and oil storage room right end inner wall Spaced winding be circumferentially with multiple second springs.
3. single-piston rod hydraulic damper according to claim 2, which is characterized 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 inner wall is equipped between Channel Group's section and hydraulic cylinder inner wall Between be equipped with gap, the distance at the interval is greater than the distance in gap.
4. single-piston rod hydraulic damper according to any one of claims 1 to 3, which is characterized in that in sleeve and piston Between piston rod be equipped with and be used to support the positioning sleeve support of the first spring.
5. single-piston rod hydraulic damper according to any one of claims 1 to 3, which is characterized in that the connector packet Connecting rod is included, the left end of connecting rod is threadedly coupled with threaded hole, and the right end of connecting rod is threaded with end joints bearing.
CN201710969864.8A 2017-10-18 2017-10-18 A kind of single-piston rod hydraulic damper Active CN107477133B (en)

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

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CN107477133A CN107477133A (en) 2017-12-15
CN107477133B true CN107477133B (en) 2019-09-17

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Family Cites Families (5)

* Cited by examiner, † Cited by third party
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
CN106763438B (en) * 2017-02-03 2019-01-08 江苏省电力试验研究院有限公司 Hydraulic bjuffer

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