CN114877005B - Variable damping device of valve-plate-free piston matched single-layer pipe small-hole damper - Google Patents
Variable damping device of valve-plate-free piston matched single-layer pipe small-hole damper Download PDFInfo
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- CN114877005B CN114877005B CN202210387665.7A CN202210387665A CN114877005B CN 114877005 B CN114877005 B CN 114877005B CN 202210387665 A CN202210387665 A CN 202210387665A CN 114877005 B CN114877005 B CN 114877005B
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- damping
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- piston rod
- piston
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- 238000013016 damping Methods 0.000 title claims abstract description 111
- 239000002356 single layer Substances 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims description 13
- 230000017525 heat dissipation Effects 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 230000035939 shock Effects 0.000 description 6
- 239000006096 absorbing agent Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
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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
-
- 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
- F16F9/3214—Constructional features of pistons
-
- 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
-
- 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
-
- 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
- F16F9/42—Cooling arrangements
-
- 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
- F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
- F16F9/435—Filling or drainage arrangements, e.g. for supply of gas via opening in cylinder wall
-
- 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
- F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
- F16F9/49—Stops limiting fluid passage, e.g. hydraulic stops or elastomeric elements inside the cylinder which contribute to changes in fluid damping
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a variable damping device of a valve-plate-free piston matched single-layer pipe orifice damper, which comprises a fixing unit, a sealing unit, a damping unit and a radiating unit, wherein the radiating unit is connected with the damping unit, and the damping unit and the sealing unit are both positioned in a cylinder barrel of the fixing unit; the damping unit comprises a piston rod, a damping tube, a piston head and an oil passing cavity, wherein the damping tube inside the piston rod is in sliding connection with the piston head, the oil passing cavity is formed between the damping tube and the inner side wall of the piston rod, a plurality of oil passing holes are formed in the side wall of the damping tube, and an oil outlet channel of the piston head is communicated with the oil passing cavity. The variable damping device with the structure that the valve-free piston is matched with the single-layer pipe small-hole damper is adopted in the invention, the piston rod is not provided with the valve plate, the damping value can be changed according to road conditions, the variable damping device is synchronous with the driving requirements of people, and the hydraulic anti-collision service life is long.
Description
Technical Field
The invention relates to the technical field of automobile shock absorbers, in particular to a variable damping device of a valve-plate-free piston matched with a single-layer pipe small-hole damper.
Background
The hydraulic shock absorber is adopted in the automobile suspension system, and the working principle of the hydraulic shock absorber is that when the automobile body and an axle are subjected to vibration and have relative movement, a piston in the shock absorber moves downwards and upwards, and oil liquid repeatedly flows into one cavity through different holes. The damping force of the automobile shock absorber is generally close to a fixed value, so that the bumping degree of the automobile can only be controlled by the speed during driving, meanwhile, the internal structure mostly utilizes the valve plate to realize the design of the damping value, and the valve plate has high manufacturing precision requirement, is easy to damage and has high cost.
Disclosure of Invention
The invention aims to provide a variable damping device with a valve-free piston matched with a single-layer pipe small-hole damper, wherein a piston rod is not provided with a valve plate, the damping value can be changed according to road conditions, the variable damping device is synchronous with driving requirements of people, and the variable damping device can be hydraulically crashproof and has long service life.
The invention provides a variable damping device of a valve-plate-free piston matched single-layer pipe small hole damper, which comprises a fixing unit, a sealing unit, a damping unit and a heat dissipation unit, wherein the heat dissipation unit is connected with the damping unit, and the damping unit and the sealing unit are both positioned in a cylinder barrel of the fixing unit;
the damping unit comprises a piston rod, a damping tube, a piston head and an oil passing cavity, wherein the damping tube inside the piston rod is in sliding connection with the piston head, the oil passing cavity is formed between the damping tube and the inner side wall of the piston rod, a plurality of oil passing holes are formed in the side wall of the damping tube, and an oil outlet channel of the piston head is communicated with the oil passing cavity.
Preferably, the fixing unit comprises an end cover, an oilless bearing, an upper lifting lug, a lower lifting lug and a cylinder barrel, wherein the upper lifting lug is respectively connected with the cylinder barrel and the damping tube, the lower lifting lug is connected with the piston rod, the end cover is provided with a moving hole matched with the piston rod, and the oilless bearing is arranged in the moving hole and is in sliding connection with the piston rod.
Preferably, the sealing unit comprises a sealing ring and an oil seal, the piston rod is sleeved with the sealing ring and the oil seal from inside to outside in sequence at the end cover, and the sealing ring is sleeved at the joint of the cylinder barrel and the upper lifting lug.
Preferably, the heat dissipation unit comprises a nitrogen cylinder, the nitrogen cylinder is communicated with a first oil cavity at the upper lifting lug through a first oil pipe and a second oil pipe, and the first oil cavity is respectively communicated with a second one-way valve and the damping pipe.
Preferably, the damping tube is communicated with a first one-way valve, and the cylinder barrel is communicated with a second one-way valve.
Preferably, the total length of the piston rod and the piston head is greater than the length of the damper tube.
Therefore, the variable damping device of the valve-plate-free piston matched with the single-layer pipe orifice damper has the following structure, the piston rod is not provided with the valve plate, the damping value can be changed according to road conditions, the variable damping device is synchronous with the driving requirements of people, and the hydraulic anti-collision service life is long.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a front cross-sectional view of a variable damping device of the present invention with a valveless piston fitted with a single-layer tube orifice damper.
Reference numerals
1. A cylinder; 2. a piston rod; 3. a damping tube; 4. a piston head; 5. passing through the oil cavity; 6. an oil passing hole; 7. an oil outlet duct; 8. a first one-way valve; 9. a second one-way valve; 10. an upper lifting lug; 11. an end cap; 12. an oilless bearing; 13. a nitrogen cylinder; 14. a first oil chamber; 15. and a lower lifting lug.
Detailed Description
The technical scheme of the invention is further described through the drawings and the embodiments.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "lower", "upper", "left", "right", etc. are used merely to indicate a relative positional relationship, which may be changed accordingly when the absolute position of the object to be described is changed.
FIG. 1 is a front cross-sectional view of a variable damping device of a valveless piston-fitted single-layer tube orifice damper of the present invention, as shown in the drawing, comprising a fixing unit, a sealing unit, a shock absorbing unit and a heat dissipating unit. The heat dissipation unit is connected with the damping unit, and the damping unit and the sealing unit are both positioned in the cylinder barrel 1 of the fixing unit. The sealing unit ensures that damping oil does not leak, the damping unit dampens the automobile, and the radiating unit radiates damping oil, so that the damping effect of the damping unit is ensured.
The damping unit comprises a piston rod 2, a damping tube 3, a piston head 4 and an oil passing cavity 5, wherein the damping tube 3 in the piston rod 2 is in sliding connection with the piston head 4, the oil passing cavity 5 is formed between the damping tube 3 and the inner side wall of the piston rod 2, a plurality of oil passing holes 6 are formed in the side wall of the damping tube 3, and an oil outlet channel 7 of the piston head 4 is communicated with the oil passing cavity 5.
The fixing unit comprises an end cover 11, an oilless bearing 12, an upper lifting lug 10, a lower lifting lug 15 and a cylinder barrel 1, wherein the upper lifting lug 10 is respectively connected with the cylinder barrel 1 and the damping tube 3, and the lower lifting lug 15 is connected with the piston rod 2. The end cover 11 is provided with a moving hole matched with the piston rod 2, and an oilless bearing 12 which is in sliding connection with the piston rod 2 is arranged in the moving hole. The upper lifting lug 10 fixes the positions of the damping tube 3 and the cylinder barrel 1, so that the smooth work of the damping unit is ensured. The arrangement of the moving hole and the oilless bearing 12 ensures that the piston rod 2 moves smoothly relative to the cylinder 1.
The sealing unit comprises a sealing ring and an oil seal, the sealing ring and the oil seal are sequentially sleeved on the piston rod 2 at the end cover 11 from inside to outside, and the sealing ring is sleeved at the joint of the cylinder barrel 1 and the upper lifting lug 10. And the arrangement of the sealing ring and the oil seal avoids leakage of damping oil in the cylinder barrel 1.
The heat radiating unit includes a nitrogen cylinder 13, and the nitrogen cylinder 13 communicates with a first oil chamber 14 at the upper shackle 10 through a first oil pipe and a second oil pipe. The first oil cavity 14 is respectively communicated with the second one-way valve 9 and the damping tube 3, so that smooth work of the damping unit is ensured. The nitrogen cylinder 13 carries out heat dissipation treatment on the damping oil entering the nitrogen cylinder, and the cooled damping oil continuously enters the damping unit to work, so that the damping effect of the damping unit is ensured.
The damping tube 3 is communicated with the first one-way valve 8, and the cylinder barrel 1 is communicated with the second one-way valve 9.
The total length of the piston rod 2 and the piston head 4 is greater than the length of the damping tube 3.
Example 1
Depending on the relative position of the piston rod 2 and the damping tube 3, different damping values are produced. The damping value of the piston rod 2 is smaller when the piston rod 2 is positioned in the middle of the damping tube 3, and the damping value of the piston rod 2 is larger when the piston rod 2 is positioned at the two ends of the damping tube 3. This law is synchronized with the law of the degree of jolting when the vehicle is running, and the hydraulic anti-collision effect is achieved when the two ends of the damping tube 3 are not provided with the oil holes 6.
In the compression process of the damping unit, the piston rod 2 moves upwards relative to the cylinder barrel 1, damping oil above the piston rod 2 is driven to enter the damping tube 3 along the oil passing hole 6, the oil passing hole 6 can be distributed into a plurality of sections on the side wall of the damping tube 3, and the hole number, the hole diameter and the distance of each section can be different. Part of damping oil enters the oil passing cavity 5 through the oil passing hole 6 in the piston rod 2, and the other part of damping oil enters the first oil cavity 14 through the damping pipe 3 and finally enters the nitrogen cylinder 13 to dissipate heat. Damping oil that has entered the inside of the oil passing chamber 5 enters below the piston head 4 along an oil outlet passage 7 at the piston head 4.
When the piston head 4 approaches to the upper part of the cylinder tube 1, the piston head 4 closes the oil passing hole 6, and the damping oil above the piston head 4 cannot flow along the second one-way valve 9. Damping oil in the nitrogen cylinder 13 enters the first oil cavity 14 and then enters the upper part of the piston head 4 through the second one-way valve 9, so that hydraulic anti-collision is realized.
During the stretching of the damping unit, the second one-way valve 9 is opened and damping oil inside the nitrogen cylinder 13 enters above the piston head 4. Damping oil below the piston head 4 enters the oil passing cavity 5 through the oil outlet channel 7. Part of the damping oil in the oil passing cavity 5 returns to the upper part of the piston head 4 or enters the nitrogen cylinder 13 through the damping pipe 3, and the other part is left in the oil passing cavity 5.
When the piston head 4 is close to the end cover 11, the piston head 4 seals the oil passing hole 6, and damping oil below the piston head 4 cannot flow. The pressure difference enables damping oil in the damping tube 3 to push away the first one-way valve 8, then enter the oil passing cavity 5, and enter the lower part of the piston head 4 through the oil outlet channel 7, so that hydraulic anti-collision is realized.
Therefore, the variable damping device of the valve-plate-free piston matched with the single-layer pipe orifice damper has the following structure, the piston rod is not provided with the valve plate, the damping value can be changed according to road conditions, the variable damping device is synchronous with the driving requirements of people, and the hydraulic anti-collision service life is long.
Finally, it should be noted that: the following examples are given by way of illustration of the technical aspects of the present invention and are not to be construed as limiting thereof, although the present invention has been described in detail with reference to the preferred embodiments, as will be understood by those of ordinary skill in the art: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.
Claims (3)
1. A variable damping device of a valve-plate-free piston matched single-layer pipe orifice damper is characterized in that: the damping device comprises a fixing unit, a sealing unit, a damping unit and a radiating unit, wherein the radiating unit is connected with the damping unit, and the damping unit and the sealing unit are both positioned in a cylinder barrel of the fixing unit;
the damping unit comprises a piston rod, a damping tube, a piston head and an oil passing cavity, wherein the damping tube in the piston rod is in sliding connection with the piston head, the oil passing cavity is formed between the damping tube and the inner side wall of the piston rod, a plurality of oil passing holes are formed in the side wall of the damping tube, and an oil outlet channel of the piston head is communicated with the oil passing cavity;
the oil passing holes can be distributed into a plurality of sections on the side wall of the damping tube, the number of holes, the aperture and the spacing of each section can be different, and the two ends of the damping tube are not provided with the oil passing holes;
the fixing unit comprises an end cover, an oilless bearing, an upper lifting lug, a lower lifting lug and a cylinder barrel, wherein the upper lifting lug is respectively connected with the cylinder barrel and the damping tube, the lower lifting lug is connected with the piston rod, the end cover is provided with a moving hole matched with the piston rod, and the oilless bearing in sliding connection with the piston rod is arranged in the moving hole;
the heat dissipation unit comprises a nitrogen cylinder, the nitrogen cylinder is communicated with a first oil cavity at the upper lifting lug through a first oil pipe and a second oil pipe, and the first oil cavity is respectively communicated with a second one-way valve and the damping pipe;
the damping tube is communicated with the first one-way valve, and the cylinder barrel is communicated with the second one-way valve.
2. The variable damping device of the valve-plate-free piston matched single-layer pipe orifice damper according to claim 1, wherein the variable damping device comprises the following components: the sealing unit comprises a sealing ring and an oil seal, the piston rod is sleeved with the sealing ring and the oil seal from inside to outside in sequence at the end cover, and the sealing ring is sleeved at the joint of the cylinder barrel and the upper lifting lug.
3. The variable damping device of the valve-plate-free piston matched single-layer pipe orifice damper according to claim 1, wherein the variable damping device comprises the following components: the total length of the piston rod and the piston head is greater than the length of the damper tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210387665.7A CN114877005B (en) | 2022-04-13 | 2022-04-13 | Variable damping device of valve-plate-free piston matched single-layer pipe small-hole damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210387665.7A CN114877005B (en) | 2022-04-13 | 2022-04-13 | Variable damping device of valve-plate-free piston matched single-layer pipe small-hole damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114877005A CN114877005A (en) | 2022-08-09 |
| CN114877005B true CN114877005B (en) | 2023-10-17 |
Family
ID=82670663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210387665.7A Active CN114877005B (en) | 2022-04-13 | 2022-04-13 | Variable damping device of valve-plate-free piston matched single-layer pipe small-hole damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114877005B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2758083A1 (en) * | 1977-12-24 | 1979-07-05 | Stabilus Gmbh | FREQUENCY-DEPENDENT VIBRATION DAMPER |
| CN101505981A (en) * | 2006-06-07 | 2009-08-12 | 李海珍 | Shock absorber apparatus for reducing weight and vibration of vehicle |
| CN202914615U (en) * | 2012-11-12 | 2013-05-01 | 杭州伊诺斐机电有限公司 | Bidirectional speed regulator |
| JP2013096566A (en) * | 2011-11-07 | 2013-05-20 | Honda Motor Co Ltd | Damping force variable damper |
| CN104179872A (en) * | 2014-07-24 | 2014-12-03 | 三一矿机有限公司 | Variable damping oil-gas suspension cylinder and mining dump truck thereof |
| CN209687985U (en) * | 2019-03-18 | 2019-11-26 | 络优集成科技(无锡)有限公司 | The cylinder type damper of adaptive damping |
| CN211501448U (en) * | 2020-01-22 | 2020-09-15 | 无锡比德希减震阻尼技术有限公司 | Hydraulic buffer device and buffer system |
| CN112727978A (en) * | 2021-01-22 | 2021-04-30 | 保定市东利机械制造股份有限公司 | Damping self-adaptation automobile shock absorber ware |
| CN112747063A (en) * | 2019-10-31 | 2021-05-04 | 比亚迪股份有限公司 | Vibration damper, energy conversion device and vehicle |
| CN113931961A (en) * | 2021-09-09 | 2022-01-14 | 神龙汽车有限公司 | Novel hydraulic self-adaptive damping adjustment shock absorber |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202016100438U1 (en) * | 2016-01-29 | 2016-02-16 | Thyssenkrupp Ag | vibration |
-
2022
- 2022-04-13 CN CN202210387665.7A patent/CN114877005B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2758083A1 (en) * | 1977-12-24 | 1979-07-05 | Stabilus Gmbh | FREQUENCY-DEPENDENT VIBRATION DAMPER |
| CN101505981A (en) * | 2006-06-07 | 2009-08-12 | 李海珍 | Shock absorber apparatus for reducing weight and vibration of vehicle |
| JP2013096566A (en) * | 2011-11-07 | 2013-05-20 | Honda Motor Co Ltd | Damping force variable damper |
| CN202914615U (en) * | 2012-11-12 | 2013-05-01 | 杭州伊诺斐机电有限公司 | Bidirectional speed regulator |
| CN104179872A (en) * | 2014-07-24 | 2014-12-03 | 三一矿机有限公司 | Variable damping oil-gas suspension cylinder and mining dump truck thereof |
| CN209687985U (en) * | 2019-03-18 | 2019-11-26 | 络优集成科技(无锡)有限公司 | The cylinder type damper of adaptive damping |
| CN112747063A (en) * | 2019-10-31 | 2021-05-04 | 比亚迪股份有限公司 | Vibration damper, energy conversion device and vehicle |
| CN211501448U (en) * | 2020-01-22 | 2020-09-15 | 无锡比德希减震阻尼技术有限公司 | Hydraulic buffer device and buffer system |
| CN112727978A (en) * | 2021-01-22 | 2021-04-30 | 保定市东利机械制造股份有限公司 | Damping self-adaptation automobile shock absorber ware |
| CN113931961A (en) * | 2021-09-09 | 2022-01-14 | 神龙汽车有限公司 | Novel hydraulic self-adaptive damping adjustment shock absorber |
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| Publication number | Publication date |
|---|---|
| CN114877005A (en) | 2022-08-09 |
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Denomination of invention: A variable damping device using a valve free piston combined with a single-layer tube small hole damper Granted publication date: 20231017 Pledgee: Ningjin County sub branch of Postal Savings Bank of China Ltd. Pledgor: Shandong arnoda Auto Parts Manufacturing Co.,Ltd. Registration number: Y2024980030227 |
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