CN100575190C - A kind of non-rod aircraft tractor - Google Patents
A kind of non-rod aircraft tractor Download PDFInfo
- Publication number
- CN100575190C CN100575190C CN200810011347A CN200810011347A CN100575190C CN 100575190 C CN100575190 C CN 100575190C CN 200810011347 A CN200810011347 A CN 200810011347A CN 200810011347 A CN200810011347 A CN 200810011347A CN 100575190 C CN100575190 C CN 100575190C
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- Prior art keywords
- damper cylinder
- cylinder
- guide cylinder
- valve
- damper
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- 238000004146 energy storage Methods 0.000 claims abstract description 19
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000013016 damping Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 8
- 239000000428 dust Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 239000004519 grease Substances 0.000 description 3
- 239000010985 leather Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Fluid-Damping Devices (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention provides a kind of non-rod aircraft tractor and turn to damper cylinder.Its major technique feature is, damper cylinder connects to ground by big flange, lower end steering yoke bolt joint is connected with turning to end of the bridge, the epitrochoidal chamber of damper cylinder links to each other with unidirectional shut off valve, connect by threeway and two energy storages, the damper cylinder urceolus links to each other with guide cylinder, and stop screw is installed in the two side ends of damper cylinder urceolus, guide cylinder inside is equipped with and is axially turned to load carrier, and guide cylinder and piston link together by screw.Can obtain different suspension rates by the inflation pressure that changes energy storage, change the flow area of unidirectional shut off valve and the spring power of back pressure spring and regulate the damping sensitivity.Its advantage is a novel structure, and technology is simple, and low cost of manufacture is convenient to produce and maintenance.Be applicable to that non-rod aircraft tractor uses, and also can be applied to other self-propelled vehicle.
Description
Technical field:
The present invention relates to a kind of non-rod aircraft tractor, particularly a kind of non-rod aircraft tractor turns to damper cylinder.
Background technology:
At present, the steering hardware of China's non-rod aircraft tractor and shock mitigation system all are independently, and the connecting rod guiding mechanism will be arranged, general layout requires the space bigger, though hydro-pneumatic spring is arranged, manufacturing cost is more expensive relatively, and maintenance cost is also higher, is unfavorable for producing and maintenance.
Summary of the invention:
The objective of the invention is the problem that exists in the above-mentioned technology, provide a kind of non-rod aircraft tractor to turn to damper cylinder, product is reduced produce and maintenance cost, help producing and maintenance.
The object of the present invention is achieved like this: comprise that damper cylinder, damper cylinder urceolus, guide cylinder, piston, height compress energy storage, steering yoke bolt, one-way throttle valve, locating dowel pin, axially turn to load carrier, it is characterized in that, damper cylinder connects to ground by big flange, lower end steering yoke bolt joint is connected with turning to end of the bridge, the epitrochoidal chamber of damper cylinder links to each other with unidirectional shut off valve, connect by threeway and two energy storages, the damper cylinder urceolus links to each other with guide cylinder, and locating dowel pin is installed in the two side ends of damper cylinder urceolus.Guide cylinder inside is equipped with and is axially turned to load carrier, and guide cylinder and piston link together by screw.
Advantage of the present invention is, novel structure, and technology is simple, and low cost of manufacture is convenient to produce and maintenance.
Description of drawings:
Fig. 1 is a cut-away view of the present invention
Fig. 2 is a shape assumption diagram of the present invention
Fig. 3 is a concrete enforcement structural representation of the present invention
Fig. 4 is a principle schematic of the present invention
The specific embodiment:
As shown in Figure 1, screw 1 is used for connecting the urceolus of damper cylinder 3 upper end covers 23 and damper cylinder 3, and O RunddichtringO 2 plays the effect of upper end, seal operation chamber.The urceolus of damper cylinder 3 is main bodys of whole damper cylinder, it not only as the parts that connect to ground but also be each part of damper cylinder linked mutually basic.Combined seal ring 4 is enclosed within the seal ring draw-in groove of piston 21, and seal ring 4 and damper cylinder outer tube inner wall closed contact play the effect of lower end, seal operation chamber simultaneously.Piston cushion blocking 22 is embedded in piston 21 tops, and when the fluid in the epitrochoidal chamber was all discharged by crossover sub 24, this moment, piston cushion blocking 22 and 23 times end in contact of damper cylinder upper end cover prevented undue impact, played buffer action.Piston 21 is connected with the screw 5 of pilot sleeve 6 by 6 M10, prevents that piston 21 from separating with pilot sleeve 6.Pilot sleeve 6 inside are with axle sleeve 7, and steering yoke bolt 14 passes from the centre, and it bears the diametral load that is acted on steering yoke bolt 14 by wheel 30.There is thrust ball bearing 17 upper end of steering yoke bolt 14, be used to carry the weight of steering yoke bolt 14 and following all attached parts, thrust ball bearing 17 upper ends have stub block 19 usefulness screws 20 to be connected with steering yoke bolt 14 simultaneously, come the adjusting play with bearing cap shim 18 between stub block 19 and the thrust ball bearing 17.There is axial roller bearing 15 steering yoke bolt 14 lower ends, are used for loading carriage and other load.There is seal ring 13 at middle part, steering yoke bolt 14 lower ends, prevents that grease from leaking and dust enters.Between pilot sleeve 6 and damper cylinder 3 outer cylinders guide bush 9 is arranged, guarantee that sleeve 6 axial motions are accurate.Owing to cooperates precision between pilot sleeve 6 and the guide bush 9, enter for preventing dust, there is dust ring 10 to be used for preventing dust, be fixing dust ring 10 simultaneously, be connected the lower surface of damper cylinder 3 outer cylinders by dust ring trim ring 12 and screw 11.Have two elongated slots of symmetry at the middle part of pilot sleeve 6, this groove is position-limited trough and oil resevoir.The middle part of damper cylinder 3 outer cylinders has the tapped bore of two symmetries, is furnished with two stop screws 8.When compression stroke (liquid in the epitrochoidal chamber is extruded) at the end, piston cushion blocking 22 and 23 times end in contact of damper cylinder upper end cover, when extension stroke when liquid make-up (in the epitrochoidal chamber) at the end, the upper end of position-limited trough contacts with stop screw 8, pilot sleeve 6 can not stretch out again, prevent that sleeve 6 from deviating from from damper cylinder 3 outer cylinders, cause danger.Can also when maintenance, in groove, inject less amount of lubrication oil, enter the gap of 9 on pilot sleeve 6 and axle sleeve, play lubricating effect by tapped bore.Side at pilot sleeve is equipped with zerk 16, belonging to sunk installs, when extension stroke is maximum, oil hole all exposes, inject grease to zerk 16, the cinclides of the cinclides of grease by pilot sleeve 6, guide bush 7 enters the slit between steering yoke bolt 14 and the axle sleeve 9, enters two bearings 15,17 up and down afterwards, to lubricated.
As shown in Figure 2, damper cylinder 3 connects to ground by big flange, stop screw 8 is installed in the two side ends of damper cylinder 3 urceolus, damper cylinder 3 urceolus link to each other with guide cylinder 6, the epitrochoidal chamber of damper cylinder 3 links to each other with one-way throttle valve 31, and one-way throttle valve 31 uses as dash pot valve, and the outside that is placed on damper cylinder 3 links to each other with two energy storages 25,26 by threeway, threeway connects energy storage 25,26 respectively and links to each other with one-way throttle valve 31, and steering yoke bolt 14 is installed in the inside of guide cylinder 6.
As shown in Figure 3, wheel 30 and the bolted connection of wheel hub 29 (wheel hub and motor one) with 10 M22, motor 29 is connected with the high strength bolt that turns to 16 M22 of end of the bridge 28 usefulness, turn to the screw of 5 M24 of end of the bridge 28 and steering yoke bolt 14 usefulness to be connected, steering yoke bolt is an one with turning to damper cylinder, turn to the cavity top of damper cylinder upper end to have the special-purpose crossover sub 24 of hydraulic pressure to connect with one-way throttle valve 31, one-way throttle valve 31 links to each other with high pressure accumulator 25 and low pressure accumulator 26 by pipeline.Energy storage is a bladder type hydropneumatic accumulator.
By Fig. 2-4 as can be known, (principle of work) clutch release slave cylinder 3 connects to ground by big flange, lower end stub joint 14 is connected with turning to end of the bridge, the epitrochoidal chamber of clutch release slave cylinder links to each other with unidirectional shut off valve 31, colluding two energy storages connections (is high pressure 25, and another is a low pressure 26) energy storage by three is bladder type hydropneumatic accumulator.In compression stroke, steering yoke bolt 14 drives guide cylinder 6 and piston 21 upward movements, and the liquid in the epitrochoidal chamber of cylinder enters in the low pressure accumulator 26 through one-way throttle valve 31.If load this moment less (pressure in the epitrochoidal chamber is lower than the gaseous tension of high pressure accumulator 25) then fluid by valve 31 can not promote the leather bags motion (just 25 in gas can not be compressed) in the energy storage 25, energy storage 25 is not worked.When load strengthens, the pressure of the fluid in the epitrochoidal chamber is greater than leather bag motion during gaseous tension in the energy storage 25 (just 25 in gas be compressed), and then two energy storages are worked simultaneously.In the overall process of compression stroke, the fluid in the epitrochoidal chamber all enters in energy storage 25 and the energy storage 26.
In extension stroke, because fluid pressure descends in the epitrochoidal chamber, the anti-leather bag that pushes away of gaseous tension in energy storage 25 and the energy storage 26 forces fluid to return epitrochoidal chamber through one-way throttle valve 31.Because this moment, the check valve of unidirectional shut off valve was closed under the anti-thrust pressure of fluid, the flow area of the passage that the anti-stream of fluid is passed through reduces, and forms dumping force, reduces extension speed, reaches the effect of damping.
At compression stroke at the end, cushion blocking 22 contacts with damper cylinder upper end cover 23, avoids piston to be pushed up wound.In extension stroke at the end, spacing by stop screw 8, prevent that guide cylinder and piston from deviating from from outer cylinder, accident meets accident.
This assembly is the effect of double as steering yoke bolt also.When turning to end of the bridge to rotate under steering hardware drives, steering yoke bolt can rotate in guide cylinder, plays the effect of steering yoke bolt.The upper end of steering yoke bolt is supported with thrust ball bearing, the weight of carrying stub and following annex, and the lower end is supported with thrust roller bearing, loading carriage and other load.
Because guide cylinder only endwisely slips, be in guide cylinder, to carry out (guide cylinder does not rotate) and rotate, reduce the wearing and tearing of guide cylinder greatly, increase the service life.And structurally processing is easier, maintains convenient and simple.
Can obtain different suspension rates by the inflation pressure that changes energy storage (25,26), the spring power that changes the flow area utmost point back pressure spring of unidirectional shut off valve 31 is regulated the damping sensitivity.
Claims (3)
1, a kind of non-rod aircraft tractor, comprise damper cylinder, guide cylinder, piston, high pressure accumulator, low pressure accumulator, steering yoke bolt, unidirectional shut off valve, stop screw, axially turn to load carrier, it is characterized in that, damper cylinder connects to ground by big flange, lower end steering yoke bolt joint is connected with turning to end of the bridge, the epitrochoidal chamber of damper cylinder links to each other with unidirectional shut off valve, by threeway and described high pressure accumulator and low pressure accumulator connection, the damper cylinder urceolus links to each other with guide cylinder, stop screw is installed in the two side ends of damper cylinder urceolus, guide cylinder inside is equipped with and is axially turned to load carrier, guide cylinder and piston link together by screw, damper cylinder is to endwisely slip with being connected of guide cylinder, and steering yoke bolt rotates in guide cylinder.
2, a kind of non-rod aircraft tractor according to claim 1 is characterized in that, energy storage is a bladder type hydropneumatic accumulator.
3, a kind of non-rod aircraft tractor according to claim 1 is characterized in that, unidirectional shut off valve uses as dash pot valve, is placed on damper cylinder urceolus inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810011347A CN100575190C (en) | 2008-05-09 | 2008-05-09 | A kind of non-rod aircraft tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810011347A CN100575190C (en) | 2008-05-09 | 2008-05-09 | A kind of non-rod aircraft tractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101342945A CN101342945A (en) | 2009-01-14 |
| CN100575190C true CN100575190C (en) | 2009-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810011347A Active CN100575190C (en) | 2008-05-09 | 2008-05-09 | A kind of non-rod aircraft tractor |
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| Country | Link |
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| CN (1) | CN100575190C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105555246A (en) * | 2013-09-25 | 2016-05-04 | 美国圣戈班性能塑料公司 | Cryopreservation container |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102817879B (en) * | 2012-08-29 | 2015-09-30 | 三一重工股份有限公司 | Hydro-pneumatic spring cylinder and engineering vehicle |
| CN104786634A (en) * | 2015-03-27 | 2015-07-22 | 浙江阳天包装材料有限公司 | Improved material control device for material feed roller of cigarette paper box printing machine |
| CN104742507A (en) * | 2015-03-27 | 2015-07-01 | 浙江阳天包装材料有限公司 | Novel material control system of material roller in cigarette paper box printing machine |
| CN110886726B (en) * | 2019-11-08 | 2021-07-23 | 陕西航天动力高科技股份有限公司 | Double-buffer for outlet of diaphragm pump |
| CN110905866B (en) * | 2019-11-08 | 2021-09-28 | 陕西航天动力高科技股份有限公司 | Single buffer at outlet of diaphragm pump |
| CN116175278B (en) * | 2023-05-04 | 2024-02-20 | 南京航空航天大学 | Automatic wall thickness on-machine detection system and operation method thereof |
-
2008
- 2008-05-09 CN CN200810011347A patent/CN100575190C/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105555246A (en) * | 2013-09-25 | 2016-05-04 | 美国圣戈班性能塑料公司 | Cryopreservation container |
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| Publication number | Publication date |
|---|---|
| CN101342945A (en) | 2009-01-14 |
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Inventor after: Qu Kai Inventor after: Jin Zhiwei Inventor after: Liu Linshan Inventor after: Chen Mingfei Inventor after: Wang Na Inventor after: Qu Han Inventor before: Qu Kai Inventor before: Jin Zhiwei |
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