CN105370784A - Temperature attenuation resisting vibration reducer - Google Patents
Temperature attenuation resisting vibration reducer Download PDFInfo
- Publication number
- CN105370784A CN105370784A CN201510930770.0A CN201510930770A CN105370784A CN 105370784 A CN105370784 A CN 105370784A CN 201510930770 A CN201510930770 A CN 201510930770A CN 105370784 A CN105370784 A CN 105370784A
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- China
- Prior art keywords
- piston
- valve
- oil
- hole
- pressure release
- 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.)
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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
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
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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
- F16F9/3221—Constructional features of piston rods
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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
- F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a temperature attenuation resisting vibration reducer. The temperature attenuation resisting vibration reducer comprises a working cylinder, a piston valve, a piston rod and an oil seal, and is characterized in that the piston valve is arranged in the working cylinder; hydraulic oil in the working cylinder is divided into an upper cavity and a lower cavity by the piston valve; an oil passing hole is formed in the piston valve for communicating the upper cavity with the lower cavity; a valve piece covers the oil passing hole; an oil seal is arranged below the lower cavity for closing the working cylinder; a guide base is additionally arranged below the oil seal; the piston rod is connected with the piston valve, and penetrates out of the working cylinder from the oil seal and the guide base; and automatic pressure relief devices are additionally arranged on the piston valve and the piston rod. The temperature attenuation resisting vibration reducer can reduce adverse effects caused by the viscosity reduction of the hydraulic oil at high temperature, reduces the attenuation of damping force, guarantees stable vibration reducing effect, improves the vibration reducing performance of the vibration reducer at high temperature, improves the whole vehicle comfort and controllability, and reduces potential safety hazards.
Description
Technical field
The present invention relates to vibration damper technical field, particularly relate to a kind of temperature resistance and to decline vibration damper.
Background technique
Traditional spring hydraulic formula vibration damper is when playing cushioning effect, piston moves back and forth in the cylinder barrel of vibration damper, fluid in vibration damper housing just flows into another inner chamber from inner chamber by some narrow holes repeatedly, now, the friction of liquid and inwall and the interior friction of fluid molecule just form the damping force to vibrating, vibration damper transfers mechanical energy to hydraulic energy, is finally converted to heat energy, then is distributed by vibration damper surface.When there is high-frequency vibration with impact in existing vibration damper, temperature can be elevated to 100 DEG C, along with the rising of temperature, the kinematical viscosity of hydraulic oil declines to a great extent, cause damping force significantly to decay, cause anti seismic efficiency to decline to a great extent, vibration frequency raises, have a strong impact on the manipulation to car load, potential safety hazard increases.
Summary of the invention
The technical assignment of technical problem to be solved by this invention and proposition improves prior art, a kind of temperature resistance is provided to decline vibration damper, solve traditional vibration damper in current technology after temperature raises, damping force significantly decays, anti seismic efficiency declines, affect car load travelling comfort and handling, the problem that potential safety hazard increases.
For solving above technical problem, technological scheme of the present invention is:
A kind of temperature resistance declines vibration damper, comprise clutch release slave cylinder, piston valve, piston rod and oil sealing, it is characterized in that, in described piston valve device busy cylinder, hydraulic oil in clutch release slave cylinder is separated into epicoele and cavity of resorption by piston valve, piston valve also offers oil-through hole and is communicated with cavity of resorption by epicoele, and oil-through hole is stamped valve block, the below of cavity of resorption arranges oil sealing and is closed by clutch release slave cylinder, the below of oil sealing is also provided with guide holder, piston rod is connected with piston valve and passes clutch release slave cylinder from oil sealing, guide holder, and is also provided with automatic decompression device on piston valve and piston rod.The temperature resistance of the present invention vibration damper that declines is provided with automatic decompression device on traditional vibration damper, automatic decompression device is provided with pressure threshold, pressure exceedes threshold value automatic decompression device and could automatically perform fighting, when normal temperature state, the kinematical viscosity of hydraulic oil is large, and damping force is comparatively large, thus automatic decompression device can be made automatically to open, hydraulic oil is from automatic decompression device circulation, and vibration damper realizes stable damping effect; After temperature rises, hydraulic pressure oil viscosity reduces, damping force reduces, automatic decompression device cannot be opened by pressure, hydraulic oil can only be opened valve block from oil-through hole and pass through, thus reduces the decay of damping force, guarantees that at high temperature vibration damper still has stable damping effect, improve car load travelling comfort and handling, reduce potential safety hazard.
Further, described automatic decompression device comprises automatic decompression valve block and pressure release spring, piston rod inner offers pressure release passage, the wall that piston rod is positioned at cavity of resorption is offered cavity of resorption through hole and is communicated with pressure release passage, the wall that piston rod is positioned at piston valve is offered valve hole and is communicated with pressure release passage, and be provided with pressure release aperture in piston valve valve hole is communicated with epicoele, the automatic decompression valve block that in pressure release passage, device mates with pressure release passage internal diameter, the device for upper end pressure release spring of automatic decompression valve block, blind hole is offered in automatic decompression valve block bottom, and on sidewall, offer oil drainage hole be communicated with blind hole, automatic decompression valve block upwards compresses pressure release spring makes oil drainage hole be communicated with valve hole.The temperature resistance of the present invention vibration damper that declines utilizes pressure release spring to provide a pressure threshold, automatic decompression valve block upwards could be boosted during hydraulic fluid pressure Overpressure of a safety valve threshold value in cavity of resorption, make oil drainage hole and valve hole, thus make automatic decompression device by epicoele and epicoele conducting, hydraulic oil flows into from cavity of resorption along automatic decompression device in epicoele, at normal temperatures, hydraulic oil viscosity is high, thus automatic decompression device can be opened greatly by damping force, and when high temperature, hydraulic pressure oil viscosity reduces, damping force diminishes and automatic decompression device cannot be opened, hydraulic oil can only pass through from oil-through hole, thus effectively reduce the decay of damping force, under guaranteeing high temperature, vibration damper also has good damping performance.
Further, described clutch release slave cylinder inner chamber top returning apparatus has float piston, the top of float piston is pressurized gas, the bottom of float piston is the epicoele of hydraulic oil, when being impacted or shake, the pressure change of hydraulic oil is initiatively recompensed by float piston under the vibration of pressurized gas, and it is uncomfortable that the vibrations brought are impacted in further elimination, improves damping effect.
Further, the outer circumferential walls of described piston valve is provided with slide bushing, reduces the wearing and tearing of piston valve and clutch release slave cylinder, enable piston valve to-and-fro motion in clutch release slave cylinder stably, improve travelling comfort and the stationarity of vibration damper.
Further, the lower port of described clutch release slave cylinder is provided with dustproof seal, improves sealing, keeps the lubrication of vibration damper inside, prevents sand and dust from entering vibration damper inside and wearing and tearing are aggravated, increase the service life.
Compared with prior art, the invention has the advantages that:
Temperature resistance of the present invention decline vibration damper can reduce when high temperature hydraulic oil viscosity reduce adverse effect, reduce the decay of damping force, ensure stable damping effect, improve vibration damper damping performance at high temperature, improve car load travelling comfort and handling, reduce potential safety hazard, structure of the present invention is simple, it is convenient to implement, low cost of manufacture, high financial profit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial enlargement structural representation at A place in Fig. 1;
Fig. 3 is performance of damping force schematic diagram of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of temperature resistance disclosed in the embodiment of the present invention declines vibration damper, reduce temperature to decline impact, the flowing of hydraulic oil is reduced when hydraulic oil kinematical viscosity declines, thus reduce the decay of damping force, ensure stable damping effect, improve vibration damper damping performance at high temperature, improve car load travelling comfort and handling, reduce potential safety hazard.
As shown in Figure 1 to Figure 3, a kind of temperature resistance declines vibration damper, comprise clutch release slave cylinder 1, piston valve 2, piston rod 3 and oil sealing 4, clutch release slave cylinder 1 inner chamber top returning apparatus has float piston 8, the top of float piston 8 is pressurized gas, the bottom of float piston 8 is hydraulic oil, in described piston valve 2 device busy cylinder 1, hydraulic oil in clutch release slave cylinder 1 is separated into epicoele 5 and cavity of resorption 6 by piston valve 2, the outer circumferential walls of piston valve 2 is provided with slide bushing 24, reduce the wearing and tearing of piston valve 2 and clutch release slave cylinder 1, piston valve 2 also offers oil-through hole 21 and is communicated with cavity of resorption 6 by epicoele 5, and oil-through hole 21 is stamped valve block 22, the below of cavity of resorption 6 arranges oil sealing 4 and is closed by clutch release slave cylinder 1, the below of oil sealing 4 is also provided with guide holder 7, piston rod 3 is connected with piston valve 2 and from oil sealing 4, guide holder 7 passes clutch release slave cylinder 1, the lower port of clutch release slave cylinder 1 is provided with dustproof seal 9 and avoids sand and dust to enter damping unstable wear in it, and on piston valve 2 and piston rod 3, be also provided with automatic decompression device.
Automatic decompression device comprises automatic decompression valve block 31 and pressure release spring 32, piston rod 3 inside offers pressure release passage 33, the wall that piston rod 3 is positioned at cavity of resorption 6 is offered cavity of resorption through hole 34 and is communicated with pressure release passage 33, the wall that piston rod 3 is positioned at piston valve 2 is offered valve hole 35 and is communicated with pressure release passage 33, and be provided with pressure release aperture 23 in piston valve 2 valve hole 35 is communicated with epicoele 5, the automatic decompression valve block 31 that in pressure release passage 33, device mates with pressure release passage 33 internal diameter, the device for upper end pressure release spring 32 of automatic decompression valve block 31, blind hole is offered in automatic decompression valve block 31 bottom, and on sidewall, offer oil drainage hole 36 be communicated with blind hole, automatic decompression valve block 31 upwards compresses pressure release spring 32 makes oil drainage hole 36 be communicated with valve hole 35.
The temperature resistance of the present invention vibration damper working state that declines divides two kinds, performance of damping force as shown in Figure 3, under normal temperature, hydraulic oil pressure viscosity is high, automatic decompression valve block upwards boosts by the pressure threshold that damping force exceedes pressure release spring, makes oil drainage hole and valve hole, and hydraulic oil passes through from automatic decompression device and oil-through hole simultaneously, guarantee that hydraulic oil circulates between epicoele and cavity of resorption, reach stable damping effect; At high temperature, hydraulic pressure oil viscosity reduces, and damping force diminishes and automatic decompression device cannot be opened, and hydraulic oil only passes through from oil-through hole, and running of hydraulic power oil reduces, thus reduces the decay of damping force, and under guaranteeing high temperature, vibration damper also has good damping performance.
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred implementation should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a temperature resistance declines vibration damper, comprise clutch release slave cylinder (1), piston valve (2), piston rod (3) and oil sealing (4), it is characterized in that, in described piston valve (2) device busy cylinder (1), hydraulic oil in clutch release slave cylinder (1) is separated into epicoele (5) and cavity of resorption (6) by piston valve (2), piston valve (2) also offers oil-through hole (21) and is communicated with cavity of resorption (6) by epicoele (5), and oil-through hole (21) is stamped valve block (22), the below of cavity of resorption (6) arranges oil sealing (4) and is closed by clutch release slave cylinder (1), the below of oil sealing (4) is also provided with guide holder (7), piston rod (3) is connected with piston valve (2) and from oil sealing (4), guide holder (7) passes clutch release slave cylinder (1), and on piston valve (2) and piston rod (3), be also provided with automatic decompression device.
2. temperature resistance according to claim 1 declines vibration damper, it is characterized in that, described automatic decompression device comprises automatic decompression valve block (31) and pressure release spring (32), piston rod (3) inside offers pressure release passage (33), the wall that piston rod (3) is positioned at cavity of resorption (6) is offered cavity of resorption through hole (34) and is communicated with pressure release passage (33), the wall that piston rod (3) is positioned at piston valve (2) is offered valve hole (35) and is communicated with pressure release passage (33), and be provided with pressure release aperture (23) in piston valve (2) valve hole (35) is communicated with epicoele (5), the automatic decompression valve block (31) that pressure release passage (33) interior device mates with pressure release passage (33) internal diameter, the device for upper end pressure release spring (32) of automatic decompression valve block (31), blind hole is offered in automatic decompression valve block (31) bottom, and on sidewall, offer oil drainage hole (36) be communicated with blind hole, automatic decompression valve block (31) upwards compresses pressure release spring (32) makes oil drainage hole (36) be communicated with valve hole (35).
3. temperature resistance according to claim 1 declines vibration damper, it is characterized in that, described clutch release slave cylinder (1) inner chamber top returning apparatus has float piston (8), the top of float piston (8) is pressurized gas, and the bottom of float piston (8) is the epicoele (5) of hydraulic oil.
4. temperature resistance according to claim 1 declines vibration damper, it is characterized in that, the outer circumferential walls of described piston valve (2) is provided with slide bushing (24).
5. temperature resistance according to claim 1 declines vibration damper, and it is characterized in that, the lower port of described clutch release slave cylinder (1) is provided with dustproof seal (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510930770.0A CN105370784A (en) | 2015-12-14 | 2015-12-14 | Temperature attenuation resisting vibration reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510930770.0A CN105370784A (en) | 2015-12-14 | 2015-12-14 | Temperature attenuation resisting vibration reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105370784A true CN105370784A (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510930770.0A Pending CN105370784A (en) | 2015-12-14 | 2015-12-14 | Temperature attenuation resisting vibration reducer |
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| Country | Link |
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| CN (1) | CN105370784A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469702A (en) * | 2017-09-07 | 2019-03-15 | 斯塔比卢斯有限责任公司 | Damper, rotatable photovoltaic panel component and the related method for reducing vibration |
| CN110848309A (en) * | 2019-11-19 | 2020-02-28 | 李茂强 | Pressure-controllable oil buffer |
| CN112709889A (en) * | 2021-01-15 | 2021-04-27 | 华北理工大学 | Multi-degree-of-freedom damping device for electromechanical equipment |
| CN113944716A (en) * | 2021-10-18 | 2022-01-18 | 邹怀琴 | High-temperature-resistant self-extinguishing shock absorber |
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2015
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469702A (en) * | 2017-09-07 | 2019-03-15 | 斯塔比卢斯有限责任公司 | Damper, rotatable photovoltaic panel component and the related method for reducing vibration |
| CN110848309A (en) * | 2019-11-19 | 2020-02-28 | 李茂强 | Pressure-controllable oil buffer |
| CN112709889A (en) * | 2021-01-15 | 2021-04-27 | 华北理工大学 | Multi-degree-of-freedom damping device for electromechanical equipment |
| CN112709889B (en) * | 2021-01-15 | 2022-05-13 | 华北理工大学 | Multi-degree-of-freedom damping device for electromechanical equipment |
| CN113944716A (en) * | 2021-10-18 | 2022-01-18 | 邹怀琴 | High-temperature-resistant self-extinguishing shock absorber |
| CN113944716B (en) * | 2021-10-18 | 2023-08-22 | 湖南闽湘消防设备有限公司 | High-temperature-resistant self-extinguishing shock absorber |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160302 |