CN111963604B - Adjustable viscous damper - Google Patents
Adjustable viscous damper Download PDFInfo
- Publication number
- CN111963604B CN111963604B CN202010840023.9A CN202010840023A CN111963604B CN 111963604 B CN111963604 B CN 111963604B CN 202010840023 A CN202010840023 A CN 202010840023A CN 111963604 B CN111963604 B CN 111963604B
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- China
- Prior art keywords
- piston rod
- hinged support
- cylinder body
- cylinder
- fixedly connected
- 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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
- F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
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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
- F16F9/30—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
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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
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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
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/362—Combination of sealing and guide arrangements for piston rods
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses an adjustable viscous damper, which is characterized in that a contact block receives external pressure applied from multiple directions, so that the contact block and a hinged support rotate, and simultaneously, a hinged support and a rotating ring are driven to axially rotate, so that a piston rod does not need to axially rotate, the rotation of a lantern ring and the hinged support offsets a part of lateral pressure, the other part of force is transmitted to the hinged support, a buffer ball is abutted between the hinged support and a fixed cylinder, the lateral direction of the hinged support is buffered and supported, the lateral thrust transmitted to the piston rod by the hinged support is reduced, the piston rod is ensured to linearly move in a cylinder body, and the piston rod is prevented from laterally colliding with the cylinder body.
Description
Technical Field
The invention relates to the field of viscous dampers, in particular to an adjustable viscous damper.
Background
At present, a damping channel of a viscous damper is generally arranged on a piston, when the piston moves, a damping medium passes through the damping channel on the piston to generate damping force, and the viscous damper is a speed-dependent structural energy dissipation and shock absorption device which is designed and manufactured by utilizing the principle that viscous fluid and structural components of the damper generate damping force.
When the end part of the existing damper is stressed and deflected, the end part of the damping guide rod is easy to collide with the outer cylinder of the damper, and the damping effect of the damper is reduced.
Disclosure of Invention
The invention aims to provide an adjustable viscous damper, and aims to solve the technical problems that when the end part of a damper in the prior art is subjected to a force in an inclined direction, the end part of a damping guide rod is stressed and deflected, the damping guide rod is easy to collide with an outer cylinder of the damper, and the damping effect of the damper is reduced.
In order to achieve the purpose, the invention adopts an adjustable viscous damper, which comprises a cylinder body, a piston rod and a mounting device; the piston rod is connected with the cylinder body in a sliding mode, one end of the piston rod is located inside the cylinder body, and the other end of the piston rod extends out of the cylinder body; the mounting device comprises a joint bearing, a hinged support, a contact block and a connecting assembly, the joint bearing is fixedly connected with the piston rod and is positioned on one side of the piston rod, which is far away from the cylinder body, the hinged support is rotatably connected with the joint bearing and is positioned on one side of the joint bearing, which is far away from the cylinder body, and the contact block is rotatably connected with the hinged support and is positioned on one side of the hinged support, which is far away from the joint bearing; the free bearing has the connecting hole, the connecting hole is located the free bearing is close to one side of contact piece, coupling assembling includes the lantern ring, a fixed section of thick bamboo and buffering ball, the lantern ring with contact piece fixed connection, and with the free bearing rotates to be connected, and is located the inside of connecting hole, a fixed section of thick bamboo with joint bearing fixed connection, and be located joint bearing is close to one side of free bearing, one side of buffering ball with a fixed section of thick bamboo butt, and the opposite side with the free bearing butt, and be located a fixed section of thick bamboo with between the free bearing.
The connecting assembly further comprises a cushion pad, the cushion pad is fixedly connected with the hinged support, abutted to the lantern ring and located inside the connecting hole.
The mounting device further comprises a guide cylinder, the guide cylinder is fixedly connected with the cylinder body, is in sliding connection with the piston rod and is positioned on one side, close to the piston rod, of the cylinder body.
Wherein, the cylinder body has a buffer chamber, and the buffer chamber is located the cylinder body and keeps away from the one side of guide cylinder.
The mounting device further comprises a sealing piece, wherein the sealing piece is fixedly connected with the cylinder body, fixedly connected with the guide cylinder and positioned on one side, close to the buffer chamber, of the guide cylinder.
The adjustable viscous damper further comprises a plug head, wherein the plug head is connected with the cylinder body in a sliding mode, fixedly connected with the piston rod and located inside the buffer chamber.
According to the adjustable viscous damper, the contact block receives external pressure applied from multiple directions, the contact block and the hinged support rotate, the hinged support and the rotating ring are driven to axially rotate, the piston rod does not need to axially rotate, a part of lateral pressure is offset by the rotation of the lantern ring and the hinged support, the other part of lateral pressure is transmitted to the hinged support, the buffer ball is abutted between the hinged support and the fixed cylinder, so that the lateral thrust transmitted to the piston rod by the hinged support is reduced, the piston rod is guaranteed to linearly move in the cylinder body, and the piston rod is prevented from laterally colliding with the cylinder body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of the structure of the mounting device of the present invention.
Fig. 2 is a schematic structural view of the spherical plain bearing of the present invention.
Fig. 3 is a schematic view of a connection structure of a piston rod and a cylinder of the present invention.
In the figure: 1-cylinder body, 2-piston rod, 3-mounting device, 4-plug, 11-buffer chamber, 31-knuckle bearing, 32-hinged support, 33-contact block, 34-connecting assembly, 35-guide cylinder, 36-sealing element, 100-adjustable viscous damper, 311-fixed ring, 312-rotary ring, 313-ball, 321-connecting hole, 341-lantern ring, 342-fixed cylinder, 343-buffer ball, 344-buffer pad and 345-abutting spring.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 2, the present invention provides an adjustable viscous damper 100, which includes a cylinder 1, a piston rod 2 and a mounting device 3; the piston rod 2 is connected with the cylinder body 1 in a sliding mode, one end of the piston rod is located inside the cylinder body 1, and the other end of the piston rod extends out of the cylinder body 1; the mounting device 3 comprises a joint bearing 31, a hinged support 32, a contact block 33 and a connecting assembly 34, wherein the joint bearing 31 is fixedly connected with the piston rod 2 and is positioned on one side of the piston rod 2 far away from the cylinder body 1, the hinged support 32 is rotatably connected with the joint bearing 31 and is positioned on one side of the joint bearing 31 far away from the cylinder body 1, and the contact block 33 is rotatably connected with the hinged support 32 and is positioned on one side of the hinged support 32 far away from the joint bearing 31; the hinge base 32 is provided with a connecting hole 321, the connecting hole 321 is located on one side of the hinge base 32 close to the contact block 33, the connecting assembly 34 comprises a collar 341, a fixed cylinder 342 and a buffer ball 343, the collar 341 is fixedly connected with the contact block 33, rotatably connected with the hinge base 32 and located inside the connecting hole 321, the fixed cylinder 342 is fixedly connected with the knuckle bearing 31 and located on one side of the knuckle bearing 31 close to the hinge base 32, one side of the buffer ball 343 is abutted with the fixed cylinder 342, the other side is abutted with the hinge base 32 and located between the fixed cylinder 342 and the hinge base 32.
Further, referring to fig. 2, the joint bearing 31 includes a fixed ring 311 and a rotating ring 312, the fixed ring 311 is fixedly connected to the piston rod 2, and is fixedly connected to the fixed cylinder 342, and is located at one end of the piston rod 2 away from the cylinder 1; the rotating ring 312 is rotatably connected to the fixed ring 311, is fixedly connected to the hinge base 32, and is located between the fixed ring 311 and the hinge base 32.
In the present embodiment, the cylinder body 1 is a cylinder, and has a cylindrical groove inside the cylinder body 1, the piston rod 2 extends into the cylinder body 1 and slides in the axial direction with the cylinder body 1, the fixed ring 311 and the rotating ring 312 are screwed to one end of the piston rod 2 extending out of the cylinder body 1, the fixed ring 311 and the rotating ring 312 are both circular disks, the diameter of the fixed ring 311 is larger than that of the rotating ring 312, the fixed ring 311 and the rotating ring 312 are concentric, the rotating ring 312 rotates around the center of the fixed ring 311, the fixed cylinder 342 is screwed to the outer periphery of the fixed ring 311, the fixed cylinder 342 has a through hole inside, the hinge 32 is a block-shaped support base, and the bottom is screwed to the surface of the rotating ring 312, so that the hinge 32 divides the inside of the fixed cylinder 342 into equal left and right sides, the buffer balls 343 are rubber round balls, and two buffer balls 343 are disposed between the fixed cylinder 342 and the hinge base 32, respectively, and abut against the hinge base 32 and the fixed cylinder 342, so that the hinge base 32 drives the two buffer balls 343 to rotate together in the rotation process, and apply pressure to the buffer balls 343 when the buffer balls 343 are stressed in an inclined manner, the ring is a hollow ring, and passes through the connection holes 321 of the hinge base 32, the ring is screwed on the back of the contact block 33, so that the contact block 33 can be rotatably connected to the hinge base 32, and thus the contact block 33 receives external pressure applied from multiple directions, so that the contact block 33 and the hinge base 32 rotate, and simultaneously drives the hinge base 32 and the rotation ring 312 to rotate axially, so that the piston rod 2 does not need to rotate axially, the rotation of the collar 341 and the hinged support 32 offsets a part of lateral pressure, another part of force is transmitted to the hinged support 32, and the buffer ball 343 abuts between the hinged support 32 and the fixed cylinder 342, so as to buffer and support the lateral direction of the hinged support 32, so that the lateral thrust transmitted from the hinged support 32 to the piston rod 2 is reduced, thereby ensuring that the piston rod 2 performs linear motion in the cylinder 1, and avoiding the lateral collision between the piston rod 2 and the cylinder 1.
Further, referring to fig. 2, the knuckle bearing 31 further includes balls 313, and the balls 313 are rotatably connected to the fixed ring 311, rotatably connected to the rotating ring 312, and located between the fixed ring 311 and the rotating ring 312.
In this embodiment, the balls 313 are installed between the fixed ring 311 and the rotating ring 312, and the fixed ring 311 and the rotating ring 312 are driven to rotate, so that the rotating ring 312 can be driven to rotate by the force applied to the hinge base 32.
Further, referring to fig. 2, the connecting assembly 34 further includes a buffer 344, and the buffer 344 is fixedly connected to the hinge base 32, abuts against the collar 341, and is located inside the connecting hole 321.
In this embodiment, the cushion pad 344 is a PU rubber pad, has a ring shape, and is bonded to the inner sidewall of the connection hole 321, and the collar 341 passes through the connection hole 321 and contacts the cushion pad 344 during rotation, thereby absorbing shock to the collar 341.
Further, referring to fig. 3, the connecting assembly 34 further includes an abutting spring 345, one side of the abutting spring 345 is fixedly connected to the fixing ring 311, and the other side of the abutting spring is fixedly connected to the cylinder 1 and is sleeved on the outer periphery of the piston rod 2.
In this embodiment, the abutting spring 345 abuts between the cylinder 1 and the fixing ring 311 and is sleeved on the periphery of the piston rod 2, and the piston rod 2 is supported by the resilience force of the abutting spring 345 in the expansion process, so that the expansion speed of the piston rod 2 is reduced.
Further, referring to fig. 3, the mounting device 3 further includes a guide cylinder 35, and the guide cylinder 35 is fixedly connected to the cylinder body 1, slidably connected to the piston rod 2, and located on one side of the cylinder body 1 close to the piston rod 2.
In this embodiment, the guide cylinder 35 is a metal cylinder having a hole therein, and is screwed into the cylinder body 1, so that the piston rod 2 passes through the guide cylinder 35, thereby limiting the extension and retraction of the piston rod 2 by the guide cylinder 35 and ensuring the linear sliding of the telescopic rod.
Further, referring to fig. 3, the cylinder 1 has a buffer chamber 11, and the buffer chamber 11 is located on a side of the cylinder 1 away from the guide cylinder 35.
Further, referring to fig. 3, the adjustable viscous damper 100 further includes a plug 4, and the plug 4 is slidably connected to the cylinder 1, fixedly connected to the piston rod 2, and located inside the buffer chamber 11.
In this embodiment, the buffer chamber 11 is located the inside central point of cylinder body 1 puts to the packing has viscous hydraulic oil in the buffer chamber 11, chock plug 4 threaded fixation piston rod 2 stretches into the one end of cylinder body 1, and along with piston rod 2 slides together, chock plug 4 extrudes viscous hydraulic oil at the slip in-process, thereby is right the slip of piston rod 2 slows down.
Further, referring to fig. 3, the mounting device 3 further includes a sealing member 36, and the sealing member 36 is fixedly connected to the cylinder body 1, fixedly connected to the guide cylinder 35, and located on a side of the guide cylinder 35 close to the buffer chamber 11.
In this embodiment, the sealing element 36 is fixed to the cylinder body 1 through threads, and fixed to the guide cylinder 35 through threads, the sealing element 36 wraps the periphery of the piston rod 2, and is sealed to the guide cylinder 35, so that viscous hydraulic oil in the buffer chamber 11 moves in the cylinder body 1, and the viscous hydraulic oil is prevented from overflowing into the cylinder body 1.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. An adjustable viscous damper is characterized by comprising a cylinder body, a piston rod and a mounting device;
the piston rod is connected with the cylinder body in a sliding mode, one end of the piston rod is located inside the cylinder body, and the other end of the piston rod extends out of the cylinder body;
the mounting device comprises a joint bearing, a hinged support, a contact block and a connecting assembly, the joint bearing is fixedly connected with the piston rod and is positioned on one side of the piston rod, which is far away from the cylinder body, the hinged support is rotatably connected with the joint bearing and is positioned on one side of the joint bearing, which is far away from the cylinder body, and the contact block is rotatably connected with the hinged support and is positioned on one side of the hinged support, which is far away from the joint bearing;
the hinged support is provided with a connecting hole, the connecting hole is positioned on one side of the hinged support close to the contact block, the connecting assembly comprises a lantern ring, a fixed cylinder and a buffer ball, the lantern ring is fixedly connected with the contact block, is rotatably connected with the hinged support and is positioned inside the connecting hole, the fixed cylinder is fixedly connected with the joint bearing and is positioned on one side of the joint bearing close to the hinged support, one side of the buffer ball is abutted against the fixed cylinder, the other side of the buffer ball is abutted against the hinged support and is positioned between the fixed cylinder and the hinged support;
the joint bearing comprises a fixed ring, a rotating ring and a ball, the fixed ring is fixedly connected with the piston rod and fixedly connected with the fixed cylinder and is positioned at one end of the piston rod, which is far away from the cylinder body, the rotating ring is rotatably connected with the fixed ring and fixedly connected with the hinged support and is positioned between the fixed ring and the hinged support, and the ball is rotatably connected with the fixed ring and rotatably connected with the rotating ring and is positioned between the fixed ring and the rotating ring.
2. The adjustable viscous damper of claim 1,
the connecting assembly further comprises a cushion pad, the cushion pad is fixedly connected with the hinged support, abutted against the lantern ring and located inside the connecting hole.
3. The adjustable viscous damper of claim 1,
the mounting device further comprises a guide cylinder, the guide cylinder is fixedly connected with the cylinder body, is in sliding connection with the piston rod and is positioned on one side, close to the piston rod, of the cylinder body.
4. The adjustable viscous damper of claim 3,
the cylinder body is provided with a buffer chamber which is positioned on one side of the cylinder body far away from the guide cylinder.
5. The adjustable viscous damper of claim 4,
the mounting device further comprises a sealing piece, wherein the sealing piece is fixedly connected with the cylinder body, fixedly connected with the guide cylinder and positioned on one side, close to the buffer chamber, of the guide cylinder.
6. The adjustable viscous damper of claim 4,
the adjustable viscous damper further comprises a plug head, wherein the plug head is connected with the cylinder body in a sliding mode, fixedly connected with the piston rod and located in the buffer chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840023.9A CN111963604B (en) | 2020-08-20 | 2020-08-20 | Adjustable viscous damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010840023.9A CN111963604B (en) | 2020-08-20 | 2020-08-20 | Adjustable viscous damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111963604A CN111963604A (en) | 2020-11-20 |
| CN111963604B true CN111963604B (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010840023.9A Active CN111963604B (en) | 2020-08-20 | 2020-08-20 | Adjustable viscous damper |
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| Country | Link |
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| CN (1) | CN111963604B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115479102A (en) * | 2022-08-09 | 2022-12-16 | 广州大学 | Upper restraint damping device for converter valve tower |
Citations (4)
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|---|---|---|---|---|
| US3139989A (en) * | 1960-04-27 | 1964-07-07 | Opee Ltd | Buffers and draw-gear for railways, tramways and like vehicles |
| JPH08210416A (en) * | 1995-01-31 | 1996-08-20 | Showa:Kk | Damping force adjuster for hydraulic shock absorber |
| CN101173703A (en) * | 2004-12-11 | 2008-05-07 | 尹学军 | Damper |
| CN101440852A (en) * | 2008-12-25 | 2009-05-27 | 柳平波 | Vibration damper with ball head structure |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007078012A (en) * | 2005-09-12 | 2007-03-29 | Aakitekusu:Kk | Base isolation device |
| KR200448940Y1 (en) * | 2008-05-19 | 2010-06-08 | 주식회사 한국가스스프링 | A gas-cylinder |
| WO2010148502A1 (en) * | 2009-06-24 | 2010-12-29 | Litens Automotive Partnership | Hydraulic damper and piston head assembly therefore |
| JP5775328B2 (en) * | 2011-02-28 | 2015-09-09 | 日立オートモティブシステムズ株式会社 | Hydraulic shock absorber |
| CN104948642A (en) * | 2015-06-29 | 2015-09-30 | 广西大学 | Damper automatically preventing car body from being inclined |
| CN207111820U (en) * | 2017-07-26 | 2018-03-16 | 武汉凌云海工程技术有限公司 | Viscous damper |
| CN207437659U (en) * | 2017-09-28 | 2018-06-01 | 重庆财经职业学院 | A kind of new automatic liquid compression buffer |
| CN209278379U (en) * | 2018-12-20 | 2019-08-20 | 常州市莱特气弹簧有限公司 | Limiting buffer formula air-leg |
| CN209909052U (en) * | 2019-04-16 | 2020-01-07 | 南京丹枫机械科技有限公司 | Cylindrical friction damper |
| CN210827904U (en) * | 2019-09-16 | 2020-06-23 | 江苏容大减震科技股份有限公司 | Viscous damper and mounting structure thereof |
-
2020
- 2020-08-20 CN CN202010840023.9A patent/CN111963604B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3139989A (en) * | 1960-04-27 | 1964-07-07 | Opee Ltd | Buffers and draw-gear for railways, tramways and like vehicles |
| JPH08210416A (en) * | 1995-01-31 | 1996-08-20 | Showa:Kk | Damping force adjuster for hydraulic shock absorber |
| CN101173703A (en) * | 2004-12-11 | 2008-05-07 | 尹学军 | Damper |
| CN101440852A (en) * | 2008-12-25 | 2009-05-27 | 柳平波 | Vibration damper with ball head structure |
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| CN111963604A (en) | 2020-11-20 |
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