CN204140745U - Semitrailer crusherbull zone hydro-pneumatic spring - Google Patents
Semitrailer crusherbull zone hydro-pneumatic spring Download PDFInfo
- Publication number
- CN204140745U CN204140745U CN201420527785.3U CN201420527785U CN204140745U CN 204140745 U CN204140745 U CN 204140745U CN 201420527785 U CN201420527785 U CN 201420527785U CN 204140745 U CN204140745 U CN 204140745U
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- CN
- China
- Prior art keywords
- piston
- semitrailer
- pneumatic spring
- cylinder barrel
- crusherbull zone
- 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.)
- Expired - Lifetime
Links
- 238000007667 floating Methods 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 238000013016 damping Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 244000261422 Lysimachia clethroides Species 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
Semitrailer crusherbull zone hydro-pneumatic spring described in the utility model relates to tractor-trailer buffer unit, is a kind of semitrailer crusherbull zone hydro-pneumatic spring.Described semitrailer crusherbull zone hydro-pneumatic spring comprises interconnective cylinder bottom and cylinder barrel; Cylinder barrel one end open, be provided with the oil pocket that piston makes to be formed between cylinder barrel and piston sealing, and this oil pocket is provided with oil-filled mouth in opening end; Piston hollow, is socketed with piston rod in it; Piston rod hollow, its floating piston that is slidably installed airtightly in one end of cylinder bottom, the other end seals and is connected with bar head, so form the air cavity of sealing between floating piston and rod seal end, and this air cavity is provided with inflation inlet, and inflation inlet is built with seal arrangement.The utility model rigidity is large, and stroke is long, can play damping effect when Vehicle Speed Fast transforms, and can get up in Emergency braking or when running into collision good buffering energy-absorbing function; It is not fragile, is easy to manufacturing and with low cost.
Description
Technical field
The utility model relates to tractor-trailer buffer unit, is a kind of semitrailer crusherbull zone hydro-pneumatic spring.
Background technique
May there is Emergency braking in semitrailer vehicles, even occur collision phenomenon in transportation process, thus cause the damage in various degree of transport goods and materials.In some valuable cargo transportation processs, need protect transport goods and materials, prevent traffic-induced damage.The anticollision buffer element mainly helical spring that current semitrailer vehicles uses, some vehicle is even without damping device.Although helical spring has more advantages, also Shortcomings: rigidity of helical spring is little, stroke is short, and impact resistance is lower, cannot meet the inertia impact of high vehicle speeds, without energy-obsorbing and damping effect, easily damages.
Summary of the invention
The purpose of this utility model is: provide a kind of semitrailer crusherbull zone hydro-pneumatic spring, make it can play good buffering energy-absorbing function when car is brought to a halt or run into collision, thus reduce the damaged condition of transported goods, damping effect is played during Vehicle Speed Fast transforms, make simultaneously it have volume little, lightweight, simple and reasonable, be easy to the features such as manufacturing, cost be low, be specially adapted to semitrailer.
The utility model is achieved through the following technical solutions for achieving the above object:
Semitrailer crusherbull zone hydro-pneumatic spring described in the utility model, it comprises interconnective cylinder bottom and cylinder barrel; Cylinder barrel one end open, be provided with the oil pocket that piston makes to be formed between cylinder barrel and piston sealing, and this oil pocket is provided with oil-filled mouth in opening end; Piston hollow, is socketed with piston rod in it; Piston rod hollow, its floating piston that is slidably installed airtightly in one end of cylinder bottom, the other end seals and is connected with bar head, so form the air cavity of sealing between floating piston and rod seal end, and this air cavity is provided with inflation inlet, and inflation inlet is built with seal arrangement.
Preferably, the oil-filled mouth of cylinder barrel is connected with one by oil pipe
pistonformula accumulator, should
pistonformula accumulator comprises a hollow cylinder, and its two ends seal, and centre is slidably fitted with piston airtightly, and this piston and cylinder body one end form the oil pocket sealed, and oil pipe is communicated with oil pocket through cylinder body.
Or more preferably, described piston is provided with orifice valve, cylinder barrel has installed the guide sleeve of hollow airtightly near one end of piston rod, this guide sleeve hollow is through piston rod, and and form airtight hollow oil pocket between piston, this hollow oil pocket is communicated with by orifice valve with the oil pocket forming sealing between cylinder barrel and piston.
Further preferably, described orifice valve is made up of rebound valve and compression valve.
Or preferably, circular groove is offered on the surface that piston contacts with cylinder barrel, in its circular groove, matchingly guidance tape is installed.
Or preferably, the surface of floating piston and plunger rod contacts is offered 4 circular grooves, two interior guidance tapes, two-way sealing ring and Yx seal ring are installed in its circular groove respectively.
Or preferably, the surface that guide sleeve contacts with cylinder barrel is offered two circular grooves, static seal O shape circle and back-up ring are all installed in its circular groove.
Or preferably, the surface of guide sleeve and plunger rod contacts is offered four circular grooves, outer guidance tape, this special envelope, Yx seal ring and two-way dust ring are installed in circular groove respectively.
Or preferably, between cylinder barrel open end and bar head, dust-proof cover is installed.
The utility model draws following advantage through on probation: (1) rigidity is large, and stroke is long, strong shock resistance; Vehicle in Emergency braking or when running into collision buffering energy-absorbing function good; (3) play damping effect during Vehicle Speed Fast transforms; (4) good reliability, not fragile; (5) volume is little, lightweight, simple and reasonable, is easy to manufacturing, and cost is low; (6) be specially adapted to semitrailer, other similar vehicles also can use.
Accompanying drawing explanation
Accompanying drawing 1 is partial sectional view of the present utility model.
Accompanying drawing 2 is that the F-F of Fig. 1 analyses and observe enlarged diagram.
In figure: 1, cylinder bottom 2, cylinder barrel 3, piston 4, piston guide band 5, orifice valve 6, interior O shape circle 7, guide sleeve 8, outer guidance tape 9, dust-proof cover 10, gas charging valve 11, bar head 12, outer O shape circle 13, piston rod 14, floating piston 15, interior guidance tape 16, swivel nut 17, supporting frame 18, accumulator 19, elbow connection
20, joint 21, joint shaft bearing.
Embodiment
As shown in the figure, semitrailer crusherbull zone hydro-pneumatic spring of the present utility model, comprises interconnective cylinder bottom 1 and cylinder barrel 2, can weld and also can be threaded.Cylinder barrel 2 one end open, install piston 3 in opening end, piston 3 hollow, is socketed with piston rod 13 in it.Piston 3 is installed one group of orifice valve 5(and comprise rebound valve and compression valve).Piston rod 13 hollow, its floating piston 14 that is slidably installed airtightly in one end of cylinder bottom, the spacing swivel nut 16 of another installation one floating piston.The other end seals and is connected with bar head, forms the air cavity C of sealing between floating piston 14 and rod seal end.Air cavity C is provided with inflation inlet, and inflation inlet is built with gas charging valve 10.Install guide sleeve 7 airtightly between piston rod 13 and cylinder barrel 2, this guide sleeve 7 hollow through piston rod 13, and and forms airtight hollow oil pocket B between piston 3.Piston rod 13 seals towards the other end of cylinder bottom and is connected with bar head 11, can weld and also can be threaded.Dust-proof cover 9 is installed between cylinder barrel 2 open end and bar head.
Piston makes to form oil pocket A between cylinder barrel and piston, and this oil pocket A is provided with oil-filled mouth; Oil-filled mouth is connected with a piston accumulator by joint 20, elbow connection 19 oil pipe, this piston accumulator comprises a hollow cylinder, its two ends seal, centre is slidably fitted with piston airtightly, this piston and cylinder body one end form the oil pocket D sealed, form with the cylinder body the other end air cavity E sealed, oil pocket A is communicated with oil pocket D by elbow connection 19.Piston accumulator is fastened onto on cylinder barrel 2 by supporting frame 17.
Cylinder bottom 1 and bar head 11 all fill joint shaft bearing 21.
The external cylindrical surface of piston is offered a circular groove, the in-built piston guide band 4 of circular groove.The external cylindrical surface of guide sleeve 7 is offered two circular grooves, in circular groove, all fill static seal O shape circle I6 and back-up ring.The inner cylindrical surface of guide sleeve 7 is offered four circular grooves, outer guidance tape 8, this special envelope, Yx seal ring and two-way dust ring are installed in circular groove respectively.Floating piston 14 external cylindrical surface is offered four circular grooves, guidance tape 15, two-way sealing ring and Yx seal ring in installing respectively in circular groove.The external cylindrical surface of bar head is offered an annular groove, the outer O shape circle 12 of the in-built gas static seal of groove and back-up ring.Cylinder bottom one end is connected with sliding traction seat, and the first end of bar is connected with gooseneck steel structure.Hydro-pneumatic spring assembling rear interior cavity is divided into A, B, C, D, E five chamber, and wherein A, B, D chamber is fluid chamber, C and E is air cavity.The external inflator of gas charging valve 10, to C chamber inflated with nitrogen.The gas charging valve that inflator connects piston accumulator is inflated to E chamber.By joint 20 to the oiling of A, B and D chamber.
The utility model is installed and used: the towing pin of trailer is sliding type, and namely towing pin can along car direct of travel slide anteroposterior, and towing pin is inserted in the joint shaft bearing of cylinder bottom.Bar head and gooseneck steel structure connection.Float when advancing traction seat and gooseneck steel structure of vehicle is mutual even at the cost of one's life, and now hydro-pneumatic spring is in free length state.Vehicle Emergency braking in the process of moving or prominent when being collided, the piston rod of hydro-pneumatic spring is subject to inertia impact and moves in cylinder, now the volume in A chamber reduces, pressure increases, fluid in A chamber flows to three directions: one, fluid promotion floating piston flows to C cavity direction, C chamber volume reduces, and pressure increases; Two, fluid flows into the D chamber of piston accumulator by connected pipes, and D chamber fluid increases, and pressure increases, and the floating piston of piston accumulator is to the motion of E chamber, and E chamber volume reduces, and pressure increases; Three, the orifice valve (compression valve) on piston is opened, and the compressed valve of fluid and normal open hole flow into B chamber.The gas volume in piston rod C chamber and E chamber in compression process diminishes, pressure increase, and the resistance of piston rod increases gradually, has the effect of elastic element; Orifice valve (comprising rebound valve and compression valve) on piston all offers normal open hole, and during normal vehicle operation, cylinder inner fluid is identical with gas pressure and be in minimum pressure state; After A cavity pressure increases and exceedes the cracking pressure of orifice valve, orifice valve is opened, fluid flows through damping hole under pressure and enters B chamber, due to the damping function of damping hole, when fluid flows through damping hole, part kinetic energy is absorbed and is converted into heat energy, distributed in air by fluid and cylinder body, therefore, hydro-pneumatic spring serves buffering energy-absorbing function.After piston rod is compressed into limit position, piston rod end face contacts with cylinder bottom, and hydro-pneumatic spring forms a rigid construction, and each cavity pressure no longer increases, thus ensure that use safety.When trailer forward velocity is after zero, due to the elastic reaction of gas, piston rod has the trend outwards upheld, if the resistance of trailer is less than the rebounding force of cylinder inner piston rod, trailer will to mobile in the other direction, to state of equilibrium.If the resistance of trailer is greater than the rebounding force of cylinder inner piston rod, trailer is motionless.Due to the effect of orifice valve (rebound valve), piston rod is subject to larger resistance when reversing motion, piston rod reversing motion speed is slowed down, thus plays damping effect.
Claims (9)
1. semitrailer crusherbull zone hydro-pneumatic spring, is characterized in that: it comprises interconnective cylinder bottom (1) and cylinder barrel (2); Cylinder barrel (2) one end open, be provided with the oil pocket that piston makes to be formed between cylinder barrel and piston sealing, and this oil pocket is provided with oil-filled mouth in opening end; Piston hollow, is socketed with piston rod (13) in it; Piston rod (13) hollow, its floating piston (14) that is slidably installed airtightly in one end of cylinder bottom, the other end seals and is connected with bar head, so form the air cavity of sealing between floating piston and rod seal end, and this air cavity is provided with inflation inlet, and inflation inlet is built with seal arrangement.
2. semitrailer crusherbull zone hydro-pneumatic spring as claimed in claim 1, is characterized in that the oil-filled mouth of cylinder barrel (2) is connected with one by oil pipe
pistonformula accumulator, should
pistonformula accumulator comprises a hollow cylinder, and its two ends seal, and centre is slidably fitted with piston airtightly, and this piston and cylinder body one end form the oil pocket sealed, and oil pipe is communicated with oil pocket through cylinder body.
3. semitrailer crusherbull zone hydro-pneumatic spring as claimed in claim 1 or 2, it is characterized in that described piston is provided with orifice valve, cylinder barrel has installed the guide sleeve of hollow airtightly near one end of piston rod, this guide sleeve hollow is through piston rod, and and form airtight hollow oil pocket between piston, this hollow oil pocket is communicated with by orifice valve with the oil pocket forming sealing between cylinder barrel and piston.
4. semitrailer crusherbull zone hydro-pneumatic spring according to claim 3, its feature is: described orifice valve (5) is made up of rebound valve and compression valve.
5. semitrailer crusherbull zone hydro-pneumatic spring according to claim 1, its feature is: circular groove is offered on the surface that piston (3) contacts with cylinder barrel, installs guidance tape (4) in its circular groove matchingly.
6. semitrailer crusherbull zone hydro-pneumatic spring according to claim 1, its feature is: 4 circular grooves are offered on floating piston (14) and the surface of plunger rod contacts, installs two interior guidance tapes (15), two-way sealing ring and Yx seal rings in its circular groove respectively.
7. semitrailer crusherbull zone hydro-pneumatic spring according to claim 1, its feature is: two circular grooves are offered on the surface that guide sleeve (7) contacts with cylinder barrel, all installs static seal O shape circle and back-up ring in its circular groove.
8. semitrailer crusherbull zone hydro-pneumatic spring according to claim 1, its feature is: four circular grooves are offered on guide sleeve (7) and the surface of plunger rod contacts, installs outer guidance tape (8), this special envelope, Yx seal ring and two-way dust ring in circular groove respectively.
9. semitrailer crusherbull zone hydro-pneumatic spring according to claim 1, its feature is: between cylinder barrel (2) open end and bar head (11), install dust-proof cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420527785.3U CN204140745U (en) | 2014-09-15 | 2014-09-15 | Semitrailer crusherbull zone hydro-pneumatic spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420527785.3U CN204140745U (en) | 2014-09-15 | 2014-09-15 | Semitrailer crusherbull zone hydro-pneumatic spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204140745U true CN204140745U (en) | 2015-02-04 |
Family
ID=52417430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420527785.3U Expired - Lifetime CN204140745U (en) | 2014-09-15 | 2014-09-15 | Semitrailer crusherbull zone hydro-pneumatic spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204140745U (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090316A (en) * | 2015-07-08 | 2015-11-25 | 宁波一力减震器有限公司 | Air spring |
| CN105172919A (en) * | 2015-08-31 | 2015-12-23 | 中国兵器工业集团第二O二研究所 | Front part buffer device for semi-trailer transport vehicle |
| CN105443638A (en) * | 2015-12-31 | 2016-03-30 | 河海大学常州校区 | Energy storing type buffer |
| CN106015430A (en) * | 2016-07-13 | 2016-10-12 | 湖北航天技术研究院特种车辆技术中心 | Buffering device and hydro-pneumatic spring |
| CN106195095A (en) * | 2016-07-13 | 2016-12-07 | 湖北航天技术研究院特种车辆技术中心 | A kind of hydro-pneumatic spring |
| CN106246793A (en) * | 2016-10-14 | 2016-12-21 | 北京汽车研究总院有限公司 | A kind of hydro-pneumatic spring power cylinder, hydro pneumatic suspension and automobile |
| CN106704442A (en) * | 2017-03-24 | 2017-05-24 | 中国北方车辆研究所 | Hydro-pneumatic spring |
| CN107035805A (en) * | 2017-04-28 | 2017-08-11 | 东莞市博鼎精密机械制造有限公司 | One kind delay nitrogen spring device |
| CN107366653A (en) * | 2017-08-23 | 2017-11-21 | 中航飞机起落架有限责任公司 | A kind of oil-gas type suitable for space environment is equipped |
| CN109268322A (en) * | 2018-11-13 | 2019-01-25 | 湖南特力液压有限公司 | Energy-storage hydraulic device |
| CN114016844A (en) * | 2021-10-25 | 2022-02-08 | 庆安集团有限公司 | Split type pneumatic driving device with locking device and buffering function |
| CN114233788A (en) * | 2021-12-18 | 2022-03-25 | 新乡市新华液压机械有限公司 | Lightweight hydro-pneumatic spring |
| CN114233792A (en) * | 2021-12-18 | 2022-03-25 | 新乡市新华液压机械有限公司 | Piston rod structure for hydro-pneumatic spring |
| CN114876999A (en) * | 2022-04-06 | 2022-08-09 | 北京航天发射技术研究所 | Multi-cavity high-reliability hydro-pneumatic spring |
| CN115000607A (en) * | 2022-06-21 | 2022-09-02 | 南通耐维特电源有限公司 | Lithium battery pack with anti-impact function |
-
2014
- 2014-09-15 CN CN201420527785.3U patent/CN204140745U/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090316A (en) * | 2015-07-08 | 2015-11-25 | 宁波一力减震器有限公司 | Air spring |
| CN105090316B (en) * | 2015-07-08 | 2018-07-03 | 宁波一力减震器有限公司 | gas spring |
| CN105172919A (en) * | 2015-08-31 | 2015-12-23 | 中国兵器工业集团第二O二研究所 | Front part buffer device for semi-trailer transport vehicle |
| CN105443638A (en) * | 2015-12-31 | 2016-03-30 | 河海大学常州校区 | Energy storing type buffer |
| CN106015430A (en) * | 2016-07-13 | 2016-10-12 | 湖北航天技术研究院特种车辆技术中心 | Buffering device and hydro-pneumatic spring |
| CN106195095A (en) * | 2016-07-13 | 2016-12-07 | 湖北航天技术研究院特种车辆技术中心 | A kind of hydro-pneumatic spring |
| CN106246793A (en) * | 2016-10-14 | 2016-12-21 | 北京汽车研究总院有限公司 | A kind of hydro-pneumatic spring power cylinder, hydro pneumatic suspension and automobile |
| CN106704442B (en) * | 2017-03-24 | 2019-11-08 | 中国北方车辆研究所 | Hydro-pneumatic spring |
| CN106704442A (en) * | 2017-03-24 | 2017-05-24 | 中国北方车辆研究所 | Hydro-pneumatic spring |
| CN107035805A (en) * | 2017-04-28 | 2017-08-11 | 东莞市博鼎精密机械制造有限公司 | One kind delay nitrogen spring device |
| CN107366653A (en) * | 2017-08-23 | 2017-11-21 | 中航飞机起落架有限责任公司 | A kind of oil-gas type suitable for space environment is equipped |
| CN109268322A (en) * | 2018-11-13 | 2019-01-25 | 湖南特力液压有限公司 | Energy-storage hydraulic device |
| CN114016844A (en) * | 2021-10-25 | 2022-02-08 | 庆安集团有限公司 | Split type pneumatic driving device with locking device and buffering function |
| CN114233788A (en) * | 2021-12-18 | 2022-03-25 | 新乡市新华液压机械有限公司 | Lightweight hydro-pneumatic spring |
| CN114233792A (en) * | 2021-12-18 | 2022-03-25 | 新乡市新华液压机械有限公司 | Piston rod structure for hydro-pneumatic spring |
| CN114876999A (en) * | 2022-04-06 | 2022-08-09 | 北京航天发射技术研究所 | Multi-cavity high-reliability hydro-pneumatic spring |
| CN114876999B (en) * | 2022-04-06 | 2024-04-05 | 北京航天发射技术研究所 | Multi-cavity high-reliability hydro-pneumatic spring |
| CN115000607A (en) * | 2022-06-21 | 2022-09-02 | 南通耐维特电源有限公司 | Lithium battery pack with anti-impact function |
| CN115000607B (en) * | 2022-06-21 | 2023-05-09 | 南通耐维特电源有限公司 | Lithium battery assembly with anti-impact function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150204 |