CN107939892B - Wear-resistant automobile shock absorber - Google Patents
Wear-resistant automobile shock absorber Download PDFInfo
- Publication number
- CN107939892B CN107939892B CN201711430184.5A CN201711430184A CN107939892B CN 107939892 B CN107939892 B CN 107939892B CN 201711430184 A CN201711430184 A CN 201711430184A CN 107939892 B CN107939892 B CN 107939892B
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- CN
- China
- Prior art keywords
- inner tube
- piston
- plug
- tube
- diameter
- 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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Links
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 19
- 230000035939 shock Effects 0.000 title claims abstract description 18
- 238000013016 damping Methods 0.000 claims abstract description 11
- 230000001105 regulatory effect Effects 0.000 claims description 24
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 230000005540 biological transmission Effects 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to a shock absorber, in particular to a wear-resistant automobile shock absorber. The assembly includes an outer tube connected to a frame of the vehicle and having a closed end and an open end, a piston rod, a piston and a damping device, the inner tube connected to a wheel of the vehicle and slidably inserted into the open end of the outer tube, the inner tube having an inner surface and an inner space having an inner diameter, the piston rod connected to a first end of the closed end of the outer tube and a second end extending into the inner tube, the piston fixedly mounted at the second end of the piston rod and slidably secured within the inner tube dividing the inner space of the inner tube into two sections, the oil in the two sections of the inner space of the inner tube, the piston having at least one passage defined by the piston and communicating with a section of the inner space of the inner tube, the inner tube sliding relative to the outer tube when an external force is applied to the wheel to produce an impact, the piston moving along the inner tube. The invention changes the vibration reduction effect by changing the oil flow, and has simple structure.
Description
Technical Field
The invention relates to a shock absorber, in particular to a wear-resistant automobile shock absorber.
Background
In order to improve the comfort of running or riding of automobiles, motorcycles, bicycles and the like and prevent damage to the vehicle caused by impact transmission to the vehicle, shock absorbers are always mounted on the frame and wheels of the vehicle.
Conventional shock absorbers according to the prior art basically include an outer tube, an inner tube slidably coupled with the outer tube, and a shock absorbing element. The damping element is mounted between the inner tube and the outer tube and may be a spring or oil. Due to the compression of the spring or the flow of oil in the tube, a damping effect is achieved. However, when the impact applied to the wheel is large, the stroke of the inner tube with respect to the outer tube is too long, resulting in the inner tube directly striking against the outer tube. This will result in the shock absorbing effect of the absorber being eliminated and damage to the absorber and the vehicle. In addition, an elastic buffer is installed between the inner tube and the outer tube to prevent the tubes from directly contacting each other. However, the bumper is easily damaged after a period of use due to elastic fatigue.
Disclosure of Invention
In order to solve the above-described technical problems, the present invention provides a wear-resistant automobile damper to provide excellent damping by changing the effect by changing the flow rate of oil.
The technical scheme adopted by the invention for realizing the purpose is as follows:
a wear-resistant automotive shock absorber includes an outer tube connected to a frame of a vehicle and having a closed end and an open end, an inner tube connected to a wheel of the vehicle and slidably inserted into the open end of the outer tube, the inner tube having an inner surface and an inner space having an inner diameter, a piston rod connected to a first end of the closed end of the outer tube and a second end extending into the inner tube, the piston fixedly mounted at the second end of the piston rod slidably secured within the inner tube dividing the inner space of the inner tube into two sections, oil in two portions of the inner space of the inner tube, the piston having at least one passage defined by the piston and communicating with a section of the inner space of the inner tube, the inner tube sliding relative to the outer tube when an external force is applied to the wheel to produce an impact, the piston moving along the inner tube.
As a further improvement, the damping device comprises a plug connected to the piston and having a diameter, and a sleeve mounted in the inner tube and having an inner diameter, the diameter of the plug being smaller than the inner diameter of the inner space of the inner tube and the sleeve.
As a further improvement, the inner tube has a plurality of annular locating grooves respectively defined in an inner surface of the inner tube, the sleeve being mounted between two grooves in the inner tube, the two fasteners being mounted in the grooves respectively.
As a further refinement, the plug includes a pressure regulator valve mounted within the plug, the pressure regulator valve including a regulator channel axially passing through the plug, the regulator channel having an inner diameter and a tapered section defined at an end of the regulator channel opposite the piston, a seal movably mounted in the regulator channel to close the tapered section of the regulator channel, a biasing member mounted in the regulator channel and abutting the sealing member to urge the sealing member to close the tapered section of the regulator channel, and an adjustment bolt threaded into the regulator channel and abutting the biasing member.
As a further refinement, the pressure regulating valve further comprises a branch channel which is radially defined in the plug and communicates with the regulating channel.
As a further improvement, the diameter of the seal is smaller than the inner diameter of the adjustment channel and larger than the inner diameter of the conical section.
As a further improvement, the sealing element is a sphere.
As a further improvement, a spring is arranged on the piston rod.
The invention changes the vibration reduction effect by changing the oil flow, and has simple structure.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partially enlarged schematic structural view of the shock absorber of fig. 1.
Fig. 3 is a schematic view of a partial enlarged operation of the shock absorber of fig. 1.
Detailed Description
The following describes the embodiments of the present invention in detail with reference to the drawings.
As shown in fig. 1 to 3, a wear-resistant automobile shock absorber, the assembly includes an outer tube 12, an inner tube 10, a piston rod 14, a piston 16 and a damping device 20, the outer tube 12 being connected to a frame of a vehicle and having a closed end and an open end, the inner tube 10 being connected to a wheel of the vehicle and being slidably inserted into the open end of the outer tube 12, the inner tube 10 having an inner surface and an inner space having an inner diameter, the piston rod 14 being connected to the closed end of the outer tube 12 and a second end extending into the inner tube 10, the piston 16 being fixedly installed at the second end of the piston rod 14, being slidably fixed within the inner tube 10, dividing the inner space of the inner tube 10 into two sections, oil being in two portions of the inner space of the inner tube 10, the piston 16 having at least one passage defined by the piston 16 and communicating with a section of the inner space of the inner tube 10, the inner tube 10 sliding relative to the outer tube 12 when an impact is applied to the wheel, the piston 16 will move along the inner tube 10. The space of the inner tube (10) will flow through the channel in the piston (16) to the other section and the pressure in the compression section increases. Thus, a vibration damping effect is provided as the pressure of the oil increases.
The damping device 20 includes a plug 22 and a sleeve 24, the plug 22 being connected to the piston 16 and having a diameter, the sleeve 24 being mounted in the inner tube 10 and having an inner diameter, the plug 22 having a diameter smaller than the inner diameter of the inner space of the inner tube 10 and the sleeve 24.
When the inner tube 10 moves relative to the outer tube 12, the oil in the compressed section of the inner space of the inner tube 10 flows by the first fluid to the piston 16. When the plug 22 enters the sleeve 24, a second flow path is defined between the plug 22 and the sleeve 24. Since the width of the second flow passage is smaller than that of the first flow passage, the oil flow area is reduced and the oil flow rate is reduced. Accordingly, the speed of movement of the plug 22 and piston 16 will decrease and the oil pressure applied to the compression section of the piston 16 will increase. Therefore, the plug 22 can be effectively prevented from colliding with the inner tube 10, and the impact absorbing effect of the absorber can be improved.
The inner tube 10 has a plurality of annular locating grooves respectively defined in the inner surface of the inner tube 10, the sleeve 24 being mounted between two grooves in the inner tube 10, the two fasteners being mounted in the grooves respectively.
The plug 22 includes a pressure regulating valve mounted within the plug 22, the pressure regulating valve including a regulating passage 222, a seal 26, a biasing member 25, a regulating bolt 28 and a branch passage 226, the regulating passage 222 passing axially through the plug 22, the regulating passage 222 having an inner diameter and a tapered section 224 defined at an end of the regulating passage 222 opposite the piston 16, the seal 26 being movably mounted in the regulating passage 222 to close the tapered section 224 of the regulating passage 222, the biasing member 25 being mounted in the regulating passage 222 and abutting the seal member 26 to urge the seal member 26 to close the tapered section 224 of the regulating passage 222, the regulating bolt 28 being screwed into the regulating passage 222 and abutting the biasing member 25, the branch passage 226 being radially defined in the plug 22 and communicating with the regulating passage 222. With such a pressure regulating valve, where the diameter of the seal 26 is smaller than the inner diameter of the regulating passage 222 and larger than the inner diameter of the conical section 224, the seal member 26 will be pushed away from the conical section 224 to allow oil to flow into the regulating passage 222 in the compression section when the oil pressure in the compression section is larger than the elasticity of the biasing member 25. Accordingly, the oil in the compression section directly flows into the first flow passage between the plug 22 and the inner tube 10 through the adjustment passage 222 and the branch passage 226, and provides the oil pressure adjusting to the compression section. When the bolt 28 is tightened relative to the plug 22, the tension provided by the biasing member 25 will be changed.
The seal 26 is a sphere.
In addition, springs are mounted around piston rod 14 to provide improved vibration damping.
Claims (4)
1. A wear-resistant automotive shock absorber comprising an outer tube (12), an inner tube (10), a piston rod (14), a piston (16) and a damping device (20), the outer tube (12) being connected to a frame of a vehicle and having a closed end and an open end, the inner tube (10) being connected to a wheel of the vehicle and being slidably inserted into the open end of the outer tube (12), the inner tube (10) having an inner surface and an inner space having an inner diameter, the piston rod (14) being connected to a first end of the closed end of the outer tube (12) and a second end extending into the inner tube (10), the piston (16) being fixedly mounted at the second end of the piston rod (14), being slidably fixed within the inner tube (10), characterized in that: dividing the interior space of the inner tube (10) into two sections, oil being in two parts of the interior space of the inner tube (10), the piston (16) having at least one passage defined by the piston (16) and communicating with a section of the interior space of the inner tube (10), the inner tube (10) sliding relative to the outer tube (12) when an impact is applied to the wheel by an external force, the piston (16) being movable along the inner tube (10), the damping device (20) comprising a plug (22) and a sleeve (24), the plug (22) being connected to the piston (16) and having a diameter, the sleeve (24) being mounted in the inner tube (10) and having an inner diameter, the plug (22) having a diameter smaller than the inner diameters of the interior space of the inner tube (10) and the sleeve (24), the inner tube (10) having a plurality of annular locating grooves respectively defined in the inner surface of the inner tube (10), the sleeve (24) being mounted between the two grooves in the inner tube (10), the two fasteners being respectively mounted in the grooves, the plug (22) comprising a pressure regulating valve mounted in said plug (22), said pressure regulating valve (22) being mounted in said plug (22) and having a diameter, said regulating passage (222), said regulating bolt (222) being biased axially through said regulating passage (28), the adjustment channel (222) has an inner diameter and a conical section (224) defined at an end of the adjustment channel (222) opposite the piston (16), a seal (26) is movably mounted in the adjustment channel (222) to close the conical section (224) of the adjustment channel (222), a biasing member (25) is mounted in the adjustment channel (222) and abuts the seal (26) to push the seal (26) to close the conical section (224) of the adjustment channel (222), an adjustment bolt (28) is screwed into the adjustment channel (222) and abuts the biasing member (25), the pressure adjustment valve further comprises a branching channel (226) radially defined in the plug (22) and in communication with the adjustment channel (222), oil in the compression section of the inner space of the inner tube (10) flows towards the piston (16) by a first fluid when the plug (22) enters the sleeve (24), a second flow passage is defined between the plug (22) and the sleeve (24), the width of the second flow passage is smaller than the width of the first flow passage and the flow passage decreases the oil flow rate of the oil is applied to the piston (16) by the first flow passage decreases and the flow rate of the oil decreases accordingly to the piston (16) decreases.
2. A wear-resistant automotive shock absorber as claimed in claim 1, wherein: the seal (26) has a diameter less than the inner diameter of the adjustment passage (222) and greater than the inner diameter of the tapered section (224).
3. A wear-resistant automotive shock absorber according to any one of claims 1-2, characterized in that: the sealing element (26) is a sphere.
4. A wear-resistant automotive shock absorber as claimed in claim 1, wherein: the piston rod (14) is provided with a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711430184.5A CN107939892B (en) | 2017-12-26 | 2017-12-26 | Wear-resistant automobile shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711430184.5A CN107939892B (en) | 2017-12-26 | 2017-12-26 | Wear-resistant automobile shock absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107939892A CN107939892A (en) | 2018-04-20 |
| CN107939892B true CN107939892B (en) | 2024-04-05 |
Family
ID=61940269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711430184.5A Active CN107939892B (en) | 2017-12-26 | 2017-12-26 | Wear-resistant automobile shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107939892B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019131319A1 (en) | 2019-11-20 | 2021-05-20 | Thyssenkrupp Ag | Vibration damper and motor vehicle with such a vibration damper |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4428566A (en) * | 1980-11-26 | 1984-01-31 | August Bilstein Gmbh & Co. Kg | Two-tube hydropneumatic shock absorber |
| US5522486A (en) * | 1993-11-13 | 1996-06-04 | Delphi France Automotive Systems | Damping valve for shock absorber |
| CN200952546Y (en) * | 2006-06-28 | 2007-09-26 | 李忠家 | Vibration damper with anticompacting device |
| CN202612465U (en) * | 2012-06-06 | 2012-12-19 | 浙江亚之星汽车部件有限公司 | Vehicle steering damper |
| CN105202097A (en) * | 2015-10-21 | 2015-12-30 | 无锡惠山泵业有限公司 | Automobile shock absorber structure |
| CN106763428A (en) * | 2017-03-07 | 2017-05-31 | 汽-大众汽车有限公司 | A kind of double offset frequency mutative damp shock absorbers of passive type |
| CN207750427U (en) * | 2017-12-26 | 2018-08-21 | 浙江亚之星汽车部件有限公司 | A kind of wear-resistant type vehicle shock absorber |
-
2017
- 2017-12-26 CN CN201711430184.5A patent/CN107939892B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4428566A (en) * | 1980-11-26 | 1984-01-31 | August Bilstein Gmbh & Co. Kg | Two-tube hydropneumatic shock absorber |
| US5522486A (en) * | 1993-11-13 | 1996-06-04 | Delphi France Automotive Systems | Damping valve for shock absorber |
| CN200952546Y (en) * | 2006-06-28 | 2007-09-26 | 李忠家 | Vibration damper with anticompacting device |
| CN202612465U (en) * | 2012-06-06 | 2012-12-19 | 浙江亚之星汽车部件有限公司 | Vehicle steering damper |
| CN105202097A (en) * | 2015-10-21 | 2015-12-30 | 无锡惠山泵业有限公司 | Automobile shock absorber structure |
| CN106763428A (en) * | 2017-03-07 | 2017-05-31 | 汽-大众汽车有限公司 | A kind of double offset frequency mutative damp shock absorbers of passive type |
| CN207750427U (en) * | 2017-12-26 | 2018-08-21 | 浙江亚之星汽车部件有限公司 | A kind of wear-resistant type vehicle shock absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107939892A (en) | 2018-04-20 |
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