CN112963485A - Single-cylinder shock absorber for automobile - Google Patents

Single-cylinder shock absorber for automobile Download PDF

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Publication number
CN112963485A
CN112963485A CN202110282758.9A CN202110282758A CN112963485A CN 112963485 A CN112963485 A CN 112963485A CN 202110282758 A CN202110282758 A CN 202110282758A CN 112963485 A CN112963485 A CN 112963485A
Authority
CN
China
Prior art keywords
push rod
shock absorber
mono
piston
automotive
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.)
Pending
Application number
CN202110282758.9A
Other languages
Chinese (zh)
Inventor
王广斌
李学军
王滕强
王小卉
蒋玲莉
杨大炼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lingnan Normal University
Original Assignee
Lingnan Normal University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lingnan Normal University filed Critical Lingnan Normal University
Priority to CN202110282758.9A priority Critical patent/CN112963485A/en
Publication of CN112963485A publication Critical patent/CN112963485A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10Springs, 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
    • F16F9/14Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16Devices 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
    • F16F9/18Devices 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
    • F16F9/19Devices 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/3207Constructional features
    • F16F9/3221Constructional features of piston rods
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/34Special valve constructions; Shape or construction of throttling passages
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/34Special valve constructions; Shape or construction of throttling passages
    • F16F9/3405Throttling passages in or on piston body, e.g. slots
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/42Cooling arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/54Arrangements for attachment
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/58Stroke limiting stops, e.g. arranged on the piston rod outside the cylinder

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The invention provides an automobile single-cylinder shock absorber which comprises a shell, a piston and a push rod, wherein the piston is fixedly connected with the push rod, the piston is connected with the surface of an inner cavity of the shell in a sliding and sealing mode, and a matrix groove is formed in the outer surface of the push rod. In the vibration reduction process, the piston compresses hydraulic oil, the hydraulic oil flows through the matrix groove when flowing in the compression chamber and the recovery chamber, and the matrix groove provides enough damping to enable the hydraulic oil to form turbulence in the matrix groove, so that heat in the hydraulic oil is consumed, and the purpose of radiating the hydraulic oil is achieved.

Description

Single-cylinder shock absorber for automobile
Technical Field
The invention relates to a shock absorber, in particular to an automobile single-cylinder shock absorber.
Background
At present, most of automobile shock absorbers circulating in the market are suitable for double-tube shock absorbers, and the heat dissipation research on single-tube shock absorbers is neglected.
At present, the traditional shock absorber that most cars used is through exposing the shock absorber and forming the forced air cooling heat dissipation in the air, can not transmit to the outside because of the heat that the compression hydraulic oil friction chamber wall produced when the shock absorber, can cause the damping performance greatly reduced of hydraulic oil, can not provide sufficient damping, and the heat can't give off in addition, can lead to intracavity hydraulic pressure increase in the past for a long time, and then arouse the leakage of hydraulic oil, can produce unusual vibration and noise even, and then influence work efficiency.
Disclosure of Invention
Based on the technical scheme, the invention provides the single-tube shock absorber for the automobile, which aims to solve the problems that the traditional shock absorber cannot provide enough damping and heat cannot be dissipated, and the specific technical scheme is as follows:
the single-cylinder shock absorber for the automobile comprises a shell, a piston and a push rod, wherein the piston is fixedly connected with one end of the push rod, the piston is connected with the surface of an inner cavity of the shell in a sliding and sealing mode, and a matrix groove is formed in the outer surface of the push rod.
The invention has the following beneficial effects: in the vibration reduction process, the piston compresses hydraulic oil, the hydraulic oil flows through the matrix groove when flowing in the compression chamber and the recovery chamber, and the matrix groove provides enough damping to enable the hydraulic oil to form turbulence in the matrix groove, so that heat in the hydraulic oil is consumed, and the purpose of radiating the hydraulic oil is achieved.
Furthermore, a limiting block is arranged on the push rod and fixedly installed on the push rod.
Furthermore, the matrix grooves are located between the limiting block and the piston, and are uniformly distributed along the length direction of the push rod.
Furthermore, a through heat pipe is arranged in the push rod, the through heat pipe is provided with an evaporation end and a condensation end, the evaporation end is located at the top of the push rod, and the condensation end is located at the bottom of the push rod.
Furthermore, the penetrating type heat pipe is coaxial with the push rod, and the inner diameter of the push rod is matched with the outer diameter of the penetrating type heat pipe.
Furthermore, the automobile mono-tube shock absorber further comprises an upper hanging ring and a lower hanging ring, the lower hanging ring is fixedly connected with one end of the shell, and the upper hanging ring is fixedly connected with the other end of the push rod.
Further, a heat dissipation seat is arranged between the upper lifting ring and the other end of the push rod, the upper lifting ring is fixedly connected with the other end of the push rod through the heat dissipation seat, through holes are formed in the heat dissipation seat, and the through holes are uniformly distributed on the surface of the heat dissipation seat.
Furthermore, the condensation end is located in the heat dissipation seat, the condensation end is provided with a second heat dissipation fin, and the second heat dissipation fin is located in the through hole.
Further, the automobile mono-tube shock absorber also comprises first radiating fins which are fixedly arranged on the outer surface of the shell.
Furthermore, damping holes are formed in the piston and are uniformly distributed.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
FIG. 1 is a schematic diagram of the overall structure of a mono-tube shock absorber for an automobile according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the condenser end of an automotive mono-tube damper in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating a portion of a mono-tube shock absorber for a vehicle in accordance with an embodiment of the present invention;
FIG. 4 is a schematic diagram of a second partial structure of a monotube shock absorber for an automobile according to an embodiment of the invention;
FIG. 5 is a cross-sectional view of an automotive mono-tube shock absorber in an embodiment of the present invention.
Description of reference numerals:
1. a lower lifting ring; 2. an upper hanging ring; 3. a first heat radiation fin; 31. a push rod; 32. a piston; 4. a heat dissipation base; 5. a through heat pipe; 6. a second heat radiation fin; 7. a matrix groove; 8. a limiting block; 9. an evaporation end; 10. a condensing end; 11. a damping hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
As shown in fig. 1 to 5, an automotive mono-tube shock absorber according to an embodiment of the present invention includes a housing, a piston 32 and a push rod 31, wherein the piston 32 is fixedly connected to one end of the push rod 31, the piston 32 is slidably and sealingly connected to an inner cavity surface of the housing, and an outer surface of the push rod 31 is provided with a matrix groove 7.
In the vibration reduction process, the piston 32 compresses hydraulic oil, the hydraulic oil flows through the matrix groove 7 when flowing in the compression chamber and the recovery chamber, the matrix groove 7 provides enough damping, so that the hydraulic oil forms turbulence in the matrix groove 7, the heat in the hydraulic oil is further consumed, and the purpose of heat dissipation of the hydraulic oil is achieved.
In one embodiment, a through heat pipe 5 is arranged in the push rod 31, the through heat pipe 5 is provided with an evaporation end 9 and a condensation end 10, the evaporation end 9 is located at the top of the push rod 31, and the condensation end 10 is located at the bottom of the push rod 31. The heat in the matrix groove 7 is transferred to the evaporation end 9, so that the heat dissipation of the internal oil is realized, the enhanced heat transfer in the hydraulic oil compression process is realized, and the compressive strength of the piston 32 can be enhanced.
In one embodiment, the through heat pipe 5 is coaxial with the push rod 31, and the inner diameter of the push rod 31 matches with the outer diameter of the through heat pipe 5. The penetrating heat pipe 5 is tightly connected with the inner surface of the push rod 31 without a gap, so that hydraulic oil is prevented from flowing into the push rod 31 from the gap, and the working efficiency of vibration reduction is reduced.
In one embodiment, the push rod 31 is provided with a limit block 8, and the limit block 8 is fixedly installed on the push rod 31; the matrix groove 7 is located between the limiting block 8 and the piston 32, and the matrix groove 7 is uniformly distributed along the outer surface of the push rod 31. The limiting block 8 is used for limiting the stroke of the piston 32, and preventing hydraulic oil from being brought out of the recovery chamber when the push rod 31 moves upwards to cause leakage of the hydraulic oil, so that the matrix groove 7 is limited within a proper stroke range, and hydraulic oil can be rapidly made to form a turbulent flow state when the hydraulic oil just flows into the recovery chamber.
In one embodiment, the automotive mono-tube shock absorber further comprises an upper hanging ring 2 and a lower hanging ring 1, wherein the lower hanging ring 1 is fixedly connected with one end of the shell, and the upper hanging ring 2 is fixedly connected with the other end of the push rod 31; go up rings 2 with be equipped with heat spreader 4 between the other end of push rod 31, go up rings 2 pass through heat spreader 4 with the other end fixed connection of push rod 31, heat spreader 4 is equipped with the through-hole, the through-hole distributes uniformly on heat spreader 4's surface. The lower hanging ring 1 and the upper hanging ring 2 play a role in fixing the automobile single-cylinder shock absorber, and the contact area of the condensation end 10 and air is increased through the through holes, so that heat transfer is enhanced.
In one embodiment, the condensation end 10 is located in the heat sink 4, the condensation end 10 is provided with a second heat dissipation fin 6, and the second heat dissipation fin 6 is located in the through hole. The second heat dissipation fins 6 achieve the enhancement of the heat dissipation of the condensation end 10.
In one embodiment, the automotive mono-tube shock absorber further comprises a first heat dissipation fin 3, and the first heat dissipation fin 3 is fixedly installed on the outer surface of the outer shell. The contact area of the shock absorber and air is increased, and heat dissipation of the shock absorber body is achieved.
In one embodiment, the piston 32 is provided with damping holes 11, and the damping holes 11 are uniformly arranged. When the hydraulic oil flows through the damping holes 11, a pressure difference is generated, so that the hydraulic oil forms a turbulent flow in the matrix groove 7, and the heat is better dissipated.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. An automobile single-tube shock absorber comprises a shell and is characterized in that: the automobile single-cylinder shock absorber further comprises a piston and a push rod, the piston is fixedly connected with one end of the push rod, the piston is connected with the surface of the inner cavity of the shell in a sliding and sealing mode, and a matrix groove is formed in the outer surface of the push rod.
2. The automotive mono-tube shock absorber of claim 1, wherein: the push rod is provided with a limiting block, and the limiting block is fixedly installed on the push rod.
3. A mono-tube shock absorber for vehicles as claimed in claim 2, wherein: the matrix groove is located between the limiting block and the piston, and the matrix groove is uniformly distributed along the length direction of the push rod.
4. The automotive mono-tube shock absorber of claim 1, wherein: the push rod is internally provided with a through heat pipe, the through heat pipe is provided with an evaporation end and a condensation end, the evaporation end is positioned at the top of the push rod, and the condensation end is positioned at the bottom of the push rod.
5. The automotive mono-tube shock absorber of claim 4, wherein: the through heat pipe is coaxial with the push rod, and the inner diameter of the push rod is matched with the outer diameter of the through heat pipe.
6. The automotive mono-tube shock absorber of claim 5, wherein: the automobile single-cylinder shock absorber further comprises an upper hanging ring and a lower hanging ring, the lower hanging ring is fixedly connected with one end of the shell, and the upper hanging ring is fixedly connected with the other end of the push rod.
7. The automotive mono-tube shock absorber of claim 6, wherein: go up rings with be equipped with the radiating seat between the other end of push rod, go up rings pass through the radiating seat with the other end fixed connection of push rod, the radiating seat is equipped with the through-hole, the through-hole distributes uniformly on the surface of radiating seat.
8. The automotive mono-tube shock absorber of claim 7, wherein: the condensation end is located in the heat radiating seat, the condensation end is provided with second heat radiating fins, and the second heat radiating fins are located in the through holes.
9. The automotive mono-tube shock absorber of claim 1, wherein: the single-cylinder shock absorber for the automobile further comprises first radiating fins, and the first radiating fins are fixedly installed on the outer surface of the shell.
10. The automotive mono-tube shock absorber of claim 1, wherein: the piston is provided with damping holes which are uniformly distributed.
CN202110282758.9A 2021-03-16 2021-03-16 Single-cylinder shock absorber for automobile Pending CN112963485A (en)

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CN202110282758.9A CN112963485A (en) 2021-03-16 2021-03-16 Single-cylinder shock absorber for automobile

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Application Number Priority Date Filing Date Title
CN202110282758.9A CN112963485A (en) 2021-03-16 2021-03-16 Single-cylinder shock absorber for automobile

Publications (1)

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CN112963485A true CN112963485A (en) 2021-06-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116255413A (en) * 2023-05-10 2023-06-13 江苏晟楠电子科技股份有限公司 Combined shock absorber for airplane

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3202152A1 (en) * 1982-01-23 1983-08-11 Daimler-Benz Ag, 7000 Stuttgart Hydraulic shock absorber
US4702355A (en) * 1985-06-07 1987-10-27 Enertrols, Inc. Shock absorber with hole-on-groove configuration and with adjusting device
KR20000026444A (en) * 1998-10-20 2000-05-15 이형도 High voltage fuel pump for directly injecting gasoline
KR20070083275A (en) * 2006-02-08 2007-08-24 주식회사 만도 Vehicle shock absorber for promoting heat emission
CN102359531A (en) * 2011-09-29 2012-02-22 中国北方车辆研究所 Single-cylinder shock absorber
CN104179875A (en) * 2014-09-02 2014-12-03 南阳淅减汽车减振器有限公司 Air-cooled shock absorber
CN107542829A (en) * 2017-08-29 2018-01-05 北汽福田汽车股份有限公司 Shock absorber and there is its vehicle
CN207470669U (en) * 2017-08-04 2018-06-08 上海汽车集团股份有限公司 Damper cylinder structure with heat sinking function
CN207701656U (en) * 2017-12-31 2018-08-07 天津市垠昊鑫科技发展有限公司 A kind of damper with heat sinking function

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3202152A1 (en) * 1982-01-23 1983-08-11 Daimler-Benz Ag, 7000 Stuttgart Hydraulic shock absorber
US4702355A (en) * 1985-06-07 1987-10-27 Enertrols, Inc. Shock absorber with hole-on-groove configuration and with adjusting device
KR20000026444A (en) * 1998-10-20 2000-05-15 이형도 High voltage fuel pump for directly injecting gasoline
KR20070083275A (en) * 2006-02-08 2007-08-24 주식회사 만도 Vehicle shock absorber for promoting heat emission
CN102359531A (en) * 2011-09-29 2012-02-22 中国北方车辆研究所 Single-cylinder shock absorber
CN104179875A (en) * 2014-09-02 2014-12-03 南阳淅减汽车减振器有限公司 Air-cooled shock absorber
CN207470669U (en) * 2017-08-04 2018-06-08 上海汽车集团股份有限公司 Damper cylinder structure with heat sinking function
CN107542829A (en) * 2017-08-29 2018-01-05 北汽福田汽车股份有限公司 Shock absorber and there is its vehicle
CN207701656U (en) * 2017-12-31 2018-08-07 天津市垠昊鑫科技发展有限公司 A kind of damper with heat sinking function

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116255413A (en) * 2023-05-10 2023-06-13 江苏晟楠电子科技股份有限公司 Combined shock absorber for airplane

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Application publication date: 20210615