CN104019176B - A kind of On A Retrofitted Damper - Google Patents
A kind of On A Retrofitted Damper Download PDFInfo
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- CN104019176B CN104019176B CN201410276036.2A CN201410276036A CN104019176B CN 104019176 B CN104019176 B CN 104019176B CN 201410276036 A CN201410276036 A CN 201410276036A CN 104019176 B CN104019176 B CN 104019176B
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- piston cylinder
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- baffle plates
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Abstract
A kind of On A Retrofitted Damper, relates to damper technique field, existing viscous damper temperature influence is larger for solving, the problem of frcition damper serious wear.Vibration source acts on piston rod and piston rod is moved downward, the oil liquid pressure of lower chambers increases, self adaption push rod is forced to move upward, part fluid in lower chambers enters in intermediate cavity and the oil liquid pressure in intermediate cavity is increased, thus make to produce frictional force between friction plate and piston cylinder, and the oil liquid pressure that can be changed by adjustment modulating valve in chamber, thus increase the frictional force between friction plate and piston cylinder.On A Retrofitted Damper can produce heat in the course of the work, has gap between piston cylinder and outer cylinder body, makes fluid flow through in process a part of heat that leaves, thus ensures the heat dispersion that On A Retrofitted Damper is good.The present invention utilizes frictional damping and viscous damping to reduce vibration, avoids the excessive wear of the friction plate that friction damping force causes.
Description
Technical field
The present invention relates to damper technique field, specifically a kind of On A Retrofitted Damper being reduced to vibrate by liquid sticky damping force and friction damping force acting in conjunction.
Background technique
Vibration extensively exists in multiple field, and in most cases oscillation phenomenon is the phenomenon that we are reluctant to see.Such as, at Based Vibration in Machinery Manufacturing Testing, the element precision processed is reduced; Vibration large in earthquake or high wind conditions makes building be destroyed; Heavy apparatus vibration can bring noise, brings harm etc. to the healthy of people.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 vibration most important.
Viscous damper is widely used as a kind of vibration damping equipment, is particularly most widely used in the car.Viscous damper is comparatively large by the impact of temperature, and when oil liquid temperature changes, fluid viscosity also can change, and viscous damping force is declined and its controllability is declined, causing 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, existing viscous damper temperature influence be larger for solving, 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, the described outer cylinder body of vertical placement and piston cylinder are columnar metalwork, described piston cylinder empty set is in the inside of outer cylinder body and arrange 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 about two spaced circular baffle plate in the bottom of described piston rod, piston cylinder is divided into three, upper, middle and lower chamber by two baffle plates, in three described chambers, be all filled with fluid, it is characterized in that
A columnar stop sleeve is being provided with between baffle plate described in two, the sheet rubber of a circle is respectively equipped with between the two ends up and down and two baffle plates of described stop sleeve, be provided with the friction plate of two halves circle in the outside of described stop sleeve, the external cylindrical surface of friction plate described in two coordinates with the contact internal walls of piston cylinder; The end face that baffle plate described in two is relative is respectively equipped with a cone shape hole, and the other end of baffle plate described in two is respectively equipped with a circular aperture, and the aperture on baffle plate described in each is connected with cone shape hole; The two ends up and down of one self adaption push rod extend in the cone shape hole of two baffle plates respectively, and between the two ends up and down and two baffle plates of described self adaption push rod, being respectively equipped with the caulking gum of a ring, the metallic rod of described self adaption push rod to be two ends be taper and described self adaption push rod can move up and down between two baffle plates;
The casing wall at the upper and lower two ends of described piston cylinder is respectively equipped with a through hole, one modulating valve is installed in the through hole on top, described modulating valve is columniform metalwork, and the center line of described modulating valve is provided with the through hole that two ends vary in size, and be threaded a columniform spool in described through hole.
Further, the piston rod being positioned at the exterior thereto that two baffle plates surround with piston cylinder is threaded respectively a bolt, and bolt described in two contacts with two baffle plates respectively and coordinates.
Further, the inwall of described piston cylinder scribbles wearing layer.
Further, described upper cover plate is connected with outer cylinder body respectively by bolt with lower cover plate.
Further, described upper cover plate is connected with piston cylinder respectively by bolt with lower cover plate.
The invention has the beneficial effects as follows: vibration source acts on piston rod and piston rod is moved downward, the oil liquid pressure of lower chambers increases, self adaption push rod is forced to move upward, part fluid in lower chambers enters in intermediate cavity and the oil liquid pressure in intermediate cavity is increased, thus make to produce frictional force between friction plate and piston cylinder, and the oil liquid pressure that can be changed by adjustment modulating valve in chamber, thus increase the frictional force between friction plate and piston cylinder; Also can reach by adjustment modulating valve the damping force regulating and flow through through hole, piston cylinder upper end, thus vibration can be reduced better.On A Retrofitted Damper can produce heat in the course of the work, has gap between piston cylinder and outer cylinder body, makes fluid flow through in process a part of heat that leaves, thus ensures the heat dispersion that On A Retrofitted Damper is good.The present invention utilizes friction damping force and viscous damping to reduce vibration, avoids the excessive wear of the friction plate that friction damping force causes.
Accompanying drawing explanation
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 rod aperture, 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 vertical columnar metalwork placed, 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.The casing wall at the upper and lower two ends of piston cylinder is respectively equipped with a through hole, scribbles high-abrasive material at the inwall of piston cylinder.Piston cylinder is identical with the axial dimension of outer cylinder body, 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.Two baffle plates 5 (5 ') setting up and down are equipped with in the lower end of piston rod, as shown in Figure 3, Figure 4, baffle plate is circular sheet metal, is provided with rod aperture 52 at the center of baffle plate, the aperture of this rod aperture is identical with piston rod external diameter, and piston rod can slide in rod aperture.An end face of baffle plate is provided with aperture 51, and the position be oppositely arranged in the other end of baffle plate and aperture is provided with a cone shape hole 53.Two baffle plates are setting up and down, and the cone shape hole 53 on two baffle plates is oppositely arranged.The piston rod of two baffle plate the upper side and lower side is fixed with nut 4 respectively, and two nuts coordinate the axial limiting realized 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.Circular sheet rubber 7 is respectively equipped with between the two ends of stop sleeve and upper and lower two baffle plates, stop sleeve is used for upper and lower two baffle plates to separate the move toward one another preventing two baffle plates, there is between sheet rubber and stop sleeve radial frictional force, the radial slippage of stop sleeve can be prevented.As shown in Figure 6, accordingly, the through hole holding piston rod is provided with 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 coordinates with the contact internal walls of piston cylinder.
A self adaption push rod 6 is also provided with between two baffle plates, self adaption push rod intermediate portion is cylindrical, two ends is taper, the two ends up and down of self adaption push rod extend in the cone shape hole of two baffle plates respectively, and under working state, one end of self adaption push rod contacts with cone shape hole and coordinates.The two ends of self adaption push rod are each passed through upper and lower two sheet rubbers, are therefore provided with the circular hole holding self adaption push rod and pass in the relevant position of sheet rubber.As shown in Figure 5, at the caulking gum 8 being respectively equipped with a ring up and down between two ends and baffle plate of self adaption push rod, 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 upper, middle and lower three chambers by upper and lower two baffle plates, is all filled with fluid in three chambers, and upper and lower two chambers are by the through hole at the upper and lower two ends of piston cylinder and the gap area between piston cylinder and urceolus.
During installation, be fixedly connected with by the lower cover plate of this On A Retrofitted Damper with fitting seat, the upper end of piston rod is connected with vibration source.When producing vibration, piston rod is subject to the effect of axial force and moves down, fluid in piston cylinder lower chambers is compressed, pressure increase, 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, and lower chambers realizes 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, thus 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, thus increase the frictional force between friction plate and piston cylinder inwall.In like manner, when piston rod moves upward, the pressure increase of upper chamber, the passage of self adaption push rod upper end is opened, the pathway closure of lower end, upper chamber is communicated with intermediate cavity, and the oil liquid pressure of intermediate cavity increases, finally make the frictional force between friction plate and piston cylinder increase, thus reduce vibration better.The upper and lower two ends of piston cylinder are respectively provided with a through hole, one modulating valve is installed in upper through-hole, damping force can be produced in through hole, when oil viscosity is larger when the through hole of oil flows through piston cylinder upper end, damping force will be more obvious, adds the effectiveness in vibration suppression of On A Retrofitted Damper.And by the modulating valve of through hole, regulating piston cylinder upper end, the damping force flowing through through hole can be regulated.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, and be threaded a columniform spool 21 in through-holes, and the degree of depth that spool screws in through hole is different, and the gap size between spool from modulating valve is different, to realize the object changing flow.By the modulating valve of through hole, regulating piston cylinder upper end, the oil liquid pressure in chamber can also be regulated, thus reach the effect regulating frictional force between friction plate and piston cylinder.
Claims (5)
1. an On A Retrofitted Damper, comprise outer cylinder body, piston cylinder, upper cover plate, lower cover plate and piston rod, the described outer cylinder body of vertical placement and piston cylinder are columnar metalwork, described piston cylinder empty set is in the inside of outer cylinder body and arrange 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 about two spaced circular baffle plate in the bottom of described piston rod, piston cylinder is divided into three, upper, middle and lower chamber by two baffle plates, in three described chambers, be all filled with fluid, it is characterized in that
A columnar stop sleeve is being provided with between baffle plate described in two, the sheet rubber of a circle is respectively equipped with between the two ends up and down and two baffle plates of described stop sleeve, be provided with the friction plate of two halves circle in the outside of described stop sleeve, the external cylindrical surface of friction plate described in two coordinates with the contact internal walls of piston cylinder; The end face that baffle plate described in two is relative is respectively equipped with a cone shape hole, and the other end of baffle plate described in two is respectively equipped with a circular aperture, and the aperture on baffle plate described in each is connected with cone shape hole; The two ends up and down of one self adaption push rod extend in the cone shape hole of two baffle plates respectively, and between the two ends up and down and two baffle plates of described self adaption push rod, being respectively equipped with the caulking gum of a ring, the metallic rod of described self adaption push rod to be two ends be taper and described self adaption push rod can move up and down between two baffle plates;
The casing wall at the upper and lower two ends of described piston cylinder is respectively equipped with a through hole, one modulating valve is installed in the through hole on top, described modulating valve is columniform metalwork, and the center line of described modulating valve is provided with the through hole that two ends vary in size, and be threaded a columniform spool in described through hole.
2. a kind of On A Retrofitted Damper according to claim 1, is characterized in that, the piston rod being positioned at the exterior thereto that two baffle plates surround with piston cylinder is threaded respectively a bolt, and bolt described in two contacts with two baffle plates respectively and coordinates.
3. a kind of On A Retrofitted Damper according to claim 2, is characterized in that, the inwall of described piston cylinder scribbles wearing layer.
4. 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 respectively by bolt with lower cover plate.
5. a kind of On A Retrofitted Damper according to claim 1, is characterized in that, described upper cover plate is connected with piston cylinder respectively by bolt 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 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410276036.2A CN104019176B (en) | 2014-06-19 | 2014-06-19 | A kind of On A Retrofitted Damper |
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| Publication Number | Publication Date |
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| CN104019176A CN104019176A (en) | 2014-09-03 |
| CN104019176B true CN104019176B (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9593737B2 (en) * | 2015-01-12 | 2017-03-14 | GM Global Technology Operations LLC | Pressure valve for gas spring |
| 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 |
Citations (6)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4948058B2 (en) * | 2006-07-04 | 2012-06-06 | カヤバ工業株式会社 | Seal structure |
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2014
- 2014-06-19 CN CN201410276036.2A patent/CN104019176B/en active Active
Patent Citations (6)
| 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 |
| 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 |
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| CN104019176A (en) | 2014-09-03 |
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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 |