CN104019176A - Novel damper - Google Patents
Novel damper Download PDFInfo
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- CN104019176A CN104019176A CN201410276036.2A CN201410276036A CN104019176A CN 104019176 A CN104019176 A CN 104019176A CN 201410276036 A CN201410276036 A CN 201410276036A CN 104019176 A CN104019176 A CN 104019176A
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- piston cylinder
- cover plate
- piston
- friction
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Abstract
The invention discloses a novel damper, and relates to the technical field of dampers. The novel damper is used for solving the problems that an existing viscous damper is affected by temperature largely, and a friction damper is abraded seriously. A vibration source acts on a piston rod to make the piston rod move downwards, the pressure of oil in a lower chamber is increased to force a self-adaptive ejector rod to move upwards, a part of the oil in the lower chamber enters a middle chamber, so that the pressure of the oil in the middle chamber is increased, friction is generated between a friction plate and a piston cylinder, and the pressure of the oil in the chambers can be adjusted by adjusting an adjusting valve to increase the friction between the friction plate and the piston cylinder. The novel damper will generate heat in the working process, and a gap is formed between the piston cylinder and an outer barrel, so that a part of heat is dissipated in the flowing process of the oil, and good heat dissipation performance of the novel damper is ensured. Friction damping and viscous damping are used for reducing vibration, and excessive abrasion, caused by friction damping force, of the friction plate is avoided.
Description
Technical field
The present invention relates to damper technique field, specifically a kind of On A Retrofitted Damper that reduces vibration by liquid viscous damping force and friction damping force acting in conjunction.
Background technique
Vibration extensively exists in multiple fields, and in most cases oscillation phenomenon is that we are reluctant the phenomenon of seeing.Such as, at Based Vibration in Machinery Manufacturing Testing, the element precision processing is reduced; In earthquake or strong wind situation, large vibration is destroyed building; Heavy apparatus vibration can bring noise, and that gives people healthyly brings harm etc.Vibration has become the key factor of restriction multiple fields development, but in a lot of situation, oscillation phenomenon is again inevitable.Therefore, take rational measure to reduce to vibrate most important.
Viscous damper is widely used as a kind of vibration damping equipment, particularly in automobile, is most widely used.Viscous damper is subject to the impact of temperature larger, and in the time that oil liquid temperature changes, fluid viscosity also can change, and viscous damping force is declined and its controllability is declined, and causes the effectiveness in vibration suppression of damper obviously to decline; And frcition damper is relatively little on the impact of oil liquid temperature, working stability is reliable, but wearing and tearing are more serious.
Summary of the invention
The object of the present invention is to provide a kind of On A Retrofitted Damper, for solving, existing viscous damper temperature influence is larger, the problem of frcition damper serious wear.
The present invention solves the technological scheme that its technical problem takes: a kind of On A Retrofitted Damper, comprise outer cylinder body, piston cylinder, upper cover plate, lower cover plate and piston rod, vertical described outer cylinder body and the piston cylinder of placing is columnar metalwork, described piston cylinder empty set arranges in the inside of outer cylinder body and with outer cylinder body coaxial line, the upper cover plate of one circle and lower cover plate are separately fixed at the two ends up and down of outer cylinder body, and described upper cover plate, lower cover plate and piston cylinder surround a columniform cavity; One piston rod extend in the inner chamber of piston cylinder through after upper cover plate, be fixed with two upper and lower spaced circular baffle plate in the bottom of described piston rod, piston cylinder is divided into three of upper, middle and lower chamber by two baffle plates, in three described chambers, is all filled with fluid, it is characterized in that
Described in two, between baffle plate, be provided with a columnar stop sleeve, between the two ends up and down of described stop sleeve and two baffle plates, be respectively equipped with the sheet rubber of a circle, be provided with the friction plate of two halves circle in the outside of described stop sleeve, described in two, the external cylindrical surface of friction plate and the inwall of piston cylinder contact cooperation; On the relative end face of baffle plate described in two, be respectively equipped with a cone shape hole, be respectively equipped with a circular aperture on the other end of baffle plate described in two, the aperture described in each on baffle plate is connected with cone shape hole; The two ends up and down of one self adaption push rod extend into respectively in the cone shape hole of two baffle plates, and between the two ends up and down of described self adaption push rod and two baffle plates, being respectively equipped with the caulking gum of a ring, described self adaption push rod is that two ends are that metallic rod and the described self adaption push rod of taper can move up and down between two baffle plates.
Further, on the casing wall at the upper and lower two ends of described piston cylinder, be respectively equipped with a through hole, one modulating valve is installed in the through hole on top, described modulating valve is columniform metalwork, on the center line of described modulating valve, be provided with the through hole that two ends vary in size, a columniform spool is threaded in described through hole.
Further, the bolt that is threaded respectively on the piston rod that is positioned at the chamber outside that two baffle plates surround with piston cylinder, described in two, bolt contacts cooperation with two baffle plates respectively.
Further, on the inwall of described piston cylinder, scribble wearing layer.
Further, described upper cover plate is connected with outer cylinder body by bolt respectively with lower cover plate.
Further, described upper cover plate is connected with piston cylinder by bolt respectively with lower cover plate.
The invention has the beneficial effects as follows: vibration source acts on piston rod piston rod is moved downward, the oil liquid pressure of lower chambers increases, force self adaption push rod to move upward, part fluid in lower chambers enters in intermediate cavity the oil liquid pressure in intermediate cavity is increased, thereby make to produce frictional force between friction plate and piston cylinder, and can change the oil liquid pressure in chamber by adjusting modulating valve, thereby increase the frictional force between friction plate and piston cylinder; Also can reach and regulate the damping force of through hole, piston cylinder upper end of flowing through by adjustment modulating valve, thereby can reduce better vibration.On A Retrofitted Damper can produce heat in the course of the work, between piston cylinder and outer cylinder body, has gap, makes fluid a part of heat that leaves in the process of flowing through, thereby ensures the good heat dispersion of On A Retrofitted Damper.The present invention utilizes friction damping force and viscous damping to reduce vibration, has avoided the excessive wear of the friction plate that friction damping force causes.
Brief description of the drawings
Fig. 1 is sectional view of the present invention;
Fig. 2 is A-A sectional view in Fig. 1;
Fig. 3 is the schematic three dimensional views of baffle plate;
Fig. 4 is the sectional view of baffle plate;
Fig. 5 is B place partial enlarged drawing in Fig. 1;
Fig. 6 is the graphics of sheet rubber;
Fig. 7 is the schematic diagram of friction plate;
Fig. 8 is C place partial enlarged drawing in Fig. 1;
In figure: 1 upper cover plate, 2 modulating valve, 21 spools, 22 through holes, 3 piston rods, 4 nuts, 5 baffle plates, 5 ' baffle plate, 51 apertures, 52 piston rod holes, 53 cone shape holes, 6 self adaption push rods, 7 sheet rubbers, 8 caulking gums, 9 piston cylinders, 10 outer cylinder bodies, 11 lower cover plates, 12 friction plates, 13 stop sleevees.
Embodiment
As shown in Figures 1 to 6, the present invention includes upper cover plate 1, modulating valve 2, piston rod 3, nut 4, baffle plate, self adaption push rod 6, sheet rubber 7, caulking gum 8, piston cylinder 9, outer cylinder body 10, lower cover plate 11, friction plate 12 and stop sleeve 13.Below in conjunction with accompanying drawing, present invention is described.
As shown in Figure 1, piston cylinder 9 and outer cylinder body 10 are the columnar metalwork of vertical placement, and the outside dimension of piston cylinder is less than the internal diameter size of outer cylinder body, and piston cylinder empty set is in the inside of outer cylinder body.On the casing wall at the upper and lower two ends of piston cylinder, be respectively equipped with a through hole, scribble high-abrasive material at the inwall of piston cylinder.The axial dimension of piston cylinder and outer cylinder body is identical, fixedly mounts a upper cover plate 1 at the top of piston cylinder and outer cylinder body, and upper cover plate 1 is circular metalwork, is provided with a circular hole at the center of upper cover plate.Fixedly mount a lower cover plate 11 in the bottom of piston cylinder and outer cylinder body, lower cover plate is also circular metalwork, and the radial dimension of upper and lower cover plate is identical and be greater than the radial dimension of outer cylinder body, and upper and lower cover plate and outer cylinder body surround a columniform confined space.One columniform piston rod 3 slides and is nested with in the circular hole of upper cover plate, and the lower end of piston rod extend in the inner chamber of piston cylinder.Be equipped with two baffle plates 5 (5 ') setting up and down in the lower end of piston rod, as shown in Figure 3, Figure 4, baffle plate is circular sheet metal, is provided with piston rod hole 52 at the center of baffle plate, the aperture in this piston rod hole is identical with piston rod external diameter, and piston rod can slide in piston rod hole.On an end face of baffle plate, be provided with aperture 51, the position being oppositely arranged at other end and the aperture of baffle plate is provided with a cone shape hole 53.Two baffle plates are setting up and down, and cone shape hole 53 on two baffle plates is oppositely arranged.On the piston rod of two baffle plate upsides and downside, be fixed with respectively nut 4, two nuts and coordinate the axial limiting of realizing two baffle plates with piston rod thread.Be provided with a stop sleeve 13 in the centre of two baffle plates, stop sleeve and piston/cylinder coaxial line are arranged.Between the two ends of stop sleeve and upper and lower two baffle plates, be respectively equipped with circular sheet rubber 7, stop sleeve is for separating by upper and lower two baffle plates the move toward one another that prevents two baffle plates, between sheet rubber and stop sleeve, there is frictional force radially, can prevent the radial slippage of stop sleeve.As shown in Figure 6, corresponding, be provided with the through hole that holds piston rod at the center of sheet rubber.Be provided with the friction plate 12 of two halves circle in stop sleeve outside, as shown in Figure 7, the friction plate of two halves circle surrounds a circle, and the exterior arc surface of two friction plates and the inwall of piston cylinder contact cooperation.
Between two baffle plates, be also provided with a self adaption push rod 6, self adaption push rod intermediate portion is that cylindrical, two ends are taper, the two ends up and down of self adaption push rod extend into respectively in the cone shape hole of two baffle plates, and under working state, one end of self adaption push rod contacts cooperation with cone shape hole.The two ends of self adaption push rod, respectively through upper and lower two sheet rubbers, are therefore provided with in the relevant position of sheet rubber and hold the circular hole that self adaption push rod passes.As shown in Figure 5, be respectively equipped with the caulking gum 8 of a ring between the two ends up and down of self adaption push rod and baffle plate, like this, sheet rubber, friction plate, stop sleeve, self adaption push rod and caulking gum are limited between two baffle plates.Piston cylinder is divided into three chambers of upper, middle and lower by upper and lower two baffle plates, in three chambers, is all filled with fluid, and upper and lower two chambers are communicated with by the gap between through hole and piston cylinder and the urceolus at the upper and lower two ends of piston cylinder.
When installation, the lower cover plate of this On A Retrofitted Damper is fixedly connected with fitting seat, the upper end of piston rod is connected with vibration source.In the time producing vibration, piston rod is subject to the effect of axial force and moves down, fluid in piston cylinder lower chambers is compressed, pressure increases, the aperture of fluid under shield acts on the bottom of self adaption push rod, force self adaption push rod to move upward, the passage of self adaption push rod lower end is opened, lower chambers is realized and being communicated with by aperture and cone shape hole with intermediate cavity.Simultaneously, the caulking gum in upper guard-plate is withstood in self adaption push rod upper end, by the pathway closure of self adaption push rod upper end, thereby intermediate cavity and upper chamber are cut off mutually, the oil liquid pressure of intermediate cavity increases and acts on friction plate, make friction plate be subject to the effect of radial force, thereby increase the frictional force between friction plate and piston cylinder inwall.In like manner, in the time that piston rod moves upward, the pressure of upper chamber increases, the passage of self adaption push rod upper end is opened, the pathway closure of lower end, upper chamber and intermediate cavity are communicated with, and the oil liquid pressure of intermediate cavity increases, finally make the frictional force between friction plate and piston cylinder increase, thereby reduce better vibration.The upper and lower two ends of piston cylinder are respectively provided with a through hole, one modulating valve is installed in the through hole of top, in the time that fluid is flowed through the through hole of piston cylinder upper end, can be produced damping force in through hole, when oil viscosity is larger, damping force will be more obvious, increased the effectiveness in vibration suppression of On A Retrofitted Damper.And can pass through the modulating valve of through hole, regulating piston cylinder upper end, regulate the damping force of the through hole of flowing through.Be specially, as shown in Figure 8, modulating valve is a columniform metalwork, and modulating valve is fixed in the through hole on piston cylinder top.Be provided with a through hole 22 at the center of modulating valve, this large one end, through hole one end is little, the columniform spool 21 that is threaded in through hole, and spool screws in the degree of depth difference in through hole, and the gap size between spool and modulating valve is different, to realize the object that changes flow.By the modulating valve of through hole, regulating piston cylinder upper end, can also regulate the oil liquid pressure in chamber, thereby reach the effect that regulates frictional force between friction plate and piston cylinder.
Claims (6)
1. an On A Retrofitted Damper, comprise outer cylinder body, piston cylinder, upper cover plate, lower cover plate and piston rod, vertical described outer cylinder body and the piston cylinder of placing is columnar metalwork, described piston cylinder empty set arranges in the inside of outer cylinder body and with outer cylinder body coaxial line, the upper cover plate of one circle and lower cover plate are separately fixed at the two ends up and down of outer cylinder body, and described upper cover plate, lower cover plate and piston cylinder surround a columniform cavity; One piston rod extend in the inner chamber of piston cylinder through after upper cover plate, be fixed with two upper and lower spaced circular baffle plate in the bottom of described piston rod, piston cylinder is divided into three of upper, middle and lower chamber by two baffle plates, in three described chambers, is all filled with fluid, it is characterized in that
Described in two, between baffle plate, be provided with a columnar stop sleeve, between the two ends up and down of described stop sleeve and two baffle plates, be respectively equipped with the sheet rubber of a circle, be provided with the friction plate of two halves circle in the outside of described stop sleeve, described in two, the external cylindrical surface of friction plate and the inwall of piston cylinder contact cooperation; On the relative end face of baffle plate described in two, be respectively equipped with a cone shape hole, be respectively equipped with a circular aperture on the other end of baffle plate described in two, the aperture described in each on baffle plate is connected with cone shape hole; The two ends up and down of one self adaption push rod extend into respectively in the cone shape hole of two baffle plates, and between the two ends up and down of described self adaption push rod and two baffle plates, being respectively equipped with the caulking gum of a ring, described self adaption push rod is that two ends are that metallic rod and the described self adaption push rod of taper can move up and down between two baffle plates.
2. a kind of On A Retrofitted Damper according to claim 1, it is characterized in that, on the casing wall at the upper and lower two ends of described piston cylinder, be respectively equipped with a through hole, one modulating valve is installed in the through hole on top, described modulating valve is columniform metalwork, on the center line of described modulating valve, be provided with the through hole that two ends vary in size, a columniform spool is threaded in described through hole.
3. a kind of On A Retrofitted Damper according to claim 2, is characterized in that, the bolt that is threaded respectively on the piston rod that is positioned at the chamber outside that two baffle plates surround with piston cylinder, and described in two, bolt contacts cooperation with two baffle plates respectively.
4. a kind of On A Retrofitted Damper according to claim 3, is characterized in that, on the inwall of described piston cylinder, scribbles wearing layer.
5. a kind of On A Retrofitted Damper according to claim 1, is characterized in that, described upper cover plate is connected with outer cylinder body by bolt respectively with lower cover plate.
6. a kind of On A Retrofitted Damper according to claim 1, is characterized in that, described upper cover plate is connected with piston cylinder by bolt respectively with lower cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410276036.2A CN104019176B (en) | 2014-06-19 | 2014-06-19 | A kind of On A Retrofitted Damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410276036.2A CN104019176B (en) | 2014-06-19 | 2014-06-19 | A kind of On A Retrofitted Damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104019176A true CN104019176A (en) | 2014-09-03 |
| CN104019176B CN104019176B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410276036.2A Active CN104019176B (en) | 2014-06-19 | 2014-06-19 | A kind of On A Retrofitted Damper |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782318A (en) * | 2015-01-12 | 2016-07-20 | 通用汽车环球科技运作有限责任公司 | Pressure Valve For Gas Spring |
| CN108443405A (en) * | 2018-05-04 | 2018-08-24 | 山推工程机械股份有限公司 | A kind of damping shock absorber and bull-dozer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB290185A (en) * | 1927-05-09 | 1928-11-22 | Stromberg Motor Devices Co | Improvements in or relating to shock absorbers for vehicle springs and the like |
| US5207774A (en) * | 1991-11-27 | 1993-05-04 | Lord Corporation | Valving for a controllable shock absorber |
| JP2008014358A (en) * | 2006-07-04 | 2008-01-24 | Kayaba Ind Co Ltd | Sealing construction |
| CN101315113A (en) * | 2008-07-22 | 2008-12-03 | 上海材料研究所 | Viscous damping device with radial position limiter |
| CN201779202U (en) * | 2010-07-23 | 2011-03-30 | 北京化工大学 | Honeycomb damper |
| CN103821872A (en) * | 2014-03-17 | 2014-05-28 | 济南大学 | Novel friction damper |
| CN203892440U (en) * | 2014-06-19 | 2014-10-22 | 济南大学 | Novel damper |
-
2014
- 2014-06-19 CN CN201410276036.2A patent/CN104019176B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB290185A (en) * | 1927-05-09 | 1928-11-22 | Stromberg Motor Devices Co | Improvements in or relating to shock absorbers for vehicle springs and the like |
| US5207774A (en) * | 1991-11-27 | 1993-05-04 | Lord Corporation | Valving for a controllable shock absorber |
| JP2008014358A (en) * | 2006-07-04 | 2008-01-24 | Kayaba Ind Co Ltd | Sealing construction |
| CN101315113A (en) * | 2008-07-22 | 2008-12-03 | 上海材料研究所 | Viscous damping device with radial position limiter |
| CN201779202U (en) * | 2010-07-23 | 2011-03-30 | 北京化工大学 | Honeycomb damper |
| CN103821872A (en) * | 2014-03-17 | 2014-05-28 | 济南大学 | Novel friction damper |
| CN203892440U (en) * | 2014-06-19 | 2014-10-22 | 济南大学 | Novel damper |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782318A (en) * | 2015-01-12 | 2016-07-20 | 通用汽车环球科技运作有限责任公司 | Pressure Valve For Gas Spring |
| CN108443405A (en) * | 2018-05-04 | 2018-08-24 | 山推工程机械股份有限公司 | A kind of damping shock absorber and bull-dozer |
| CN108443405B (en) * | 2018-05-04 | 2019-08-16 | 山推工程机械股份有限公司 | A kind of damping shock absorber and bull-dozer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104019176B (en) | 2016-03-23 |
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Effective date of registration: 20220130 Address after: 272613 1000 meters east of caizhuang village, quanpu Industrial Zone, Liangshan County, Jining City, Shandong Province Patentee after: Liangshan Xuantong transportation equipment manufacturing Co.,Ltd. Address before: 250022 No. 336, South Xin Zhuang West Road, Shizhong District, Ji'nan, Shandong Patentee before: University of Jinan |