CN203282998U - Automatic leveling system of rodless aircraft tractor - Google Patents
Automatic leveling system of rodless aircraft tractor Download PDFInfo
- Publication number
- CN203282998U CN203282998U CN2013202788566U CN201320278856U CN203282998U CN 203282998 U CN203282998 U CN 203282998U CN 2013202788566 U CN2013202788566 U CN 2013202788566U CN 201320278856 U CN201320278856 U CN 201320278856U CN 203282998 U CN203282998 U CN 203282998U
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- fluid cylinder
- suspension fluid
- hanging
- valve
- electromagnetic switch
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Abstract
The utility model relates to the technical field of aviation ground facilities, in particular to an automatic leveling system of a rodless aircraft tractor. The automatic leveling system of the rodless aircraft tractor comprises a vehicle frame, a front vehicle axle, a left hanging hydraulic cylinder, a right hanging hydraulic cylinder and an oil tank, and is characterized by comprising a hanging valve block, energy accumulators, position sensors and an oil supplementation pump, the position sensors are respectively arranged on a telescopic rod side face of the left hanging hydraulic cylinder and a telescopic rod side face of the right hanging hydraulic cylinder to induce whether the extending lengths of the hanging hydraulic cylinders are appropriate, the oil supplementation pump is arranged on a hydraulic pipeline at the near end of the oil tank, one end of the hanging valve block is respectively connected with the left hanging hydraulic cylinder and the right hanging hydraulic cylinder, the other end of the hanging valve block is connected with the oil supplementation pump, the left energy accumulator is arranged on a hydraulic pipeline between the left hanging hydraulic cylinder and the hanging valve block, and the right energy accumulator is arranged on a hydraulic pipeline between the right hanging hydraulic cylinder and the hanging valve block. The automatic leveling system of the rodless aircraft tractor has the advantages of being novel in structure, being provided with a stable vehicle body, meeting the working condition requirements of vehicles, improving the work performance of the intra-industry rodless aircraft tractor, and the like.
Description
Technical field
The utility model relates to Ground facility technology field, specifically a kind of automatic horizontal control system of the non-rod aircraft tractor for embracing folder aircraft nosewheel.
Background technology
At present, whole world most countries is all greatly developed aircraft industry, the flourish impetus has appearred, non-rod aircraft tractor is owing to greatly saving labour turnover and the advantage of use cost, be subjected to the favor of vast airport and airline company, non-rod aircraft tractor directly contacts with the aircraft nose-gear, specifically, completes towage after the wheel holding mechanism of non-rod aircraft tractor takes the aircraft nosewheel in one's arms.non-rod aircraft tractor generally includes vehicle frame, front axle, left suspension fluid cylinder, right suspension fluid cylinder and fuel tank, the wheel inboard at front axle two ends is respectively equipped with bearing, left suspension fluid cylinder, right suspension fluid cylinder lower end is fixedly connected with front axle through bearing respectively, the telescopic upper end bar is fixedly connected with vehicle frame through bearing pin respectively, left suspension fluid cylinder, right suspension fluid cylinder is connected with fuel tank through hydraulic tubing respectively, due to its special structure and work characteristics, can cause vehicle body injustice and chassis appearance decline to a certain degree after taking the aircraft nosewheel in one's arms, make the too low Vehicle Driving Cycle that affects of chassis ground clearance, therefore need to design a kind of mechanism that can the automatic leveling non-rod aircraft tractor and solve the problems referred to above.
Summary of the invention
The purpose of this utility model is when solving above-mentioned prior art deficiency, provide a kind of novel structure, car body steadily, meet the working condition requirement of vehicle, improve the non-rod aircraft tractor automatic horizontal control system of non-rod aircraft tractor serviceability in industry.
The technical scheme that its technical matters that solves the utility model adopts is:
a kind of non-rod aircraft tractor automatic horizontal control system, comprise vehicle frame, front axle, left suspension fluid cylinder, right suspension fluid cylinder and fuel tank, the wheel inboard at front axle two ends is respectively equipped with bearing, left suspension fluid cylinder, right suspension fluid cylinder lower end is fixedly connected with front axle through bearing respectively, the telescopic upper end bar is fixedly connected with vehicle frame through bearing pin respectively, left suspension fluid cylinder, right suspension fluid cylinder is connected with fuel tank through hydraulic tubing respectively, it is characterized in that comprising suspension valve piece, left energy storage, right energy storage, position transduser, support and slippage pump, described left suspension fluid cylinder and right suspension fluid cylinder one side are respectively equipped with support, the support lower end be fixedly connected with front axle, upper end is provided with
position transduser, position transduser is corresponding with the expansion link of left suspension fluid cylinder and right suspension fluid cylinder respectively, whether the extension elongation that hangs fluid cylinder with induction puts in place, the hydraulic tubing of described fuel tank near-end is provided with slippage pump, described suspension valve piece one interface is connected with right suspension fluid cylinder with left suspension fluid cylinder through hydraulic tubing respectively, another interface is connected with slippage pump, be beneficial to cut off or be communicated with oil circuit, realize the accurately effect of leveling automatically, simplified the operation of chaufeur, described left suspension fluid cylinder and the hydraulic tubing that hangs between the valve piece are provided with left energy storage, right suspension fluid cylinder and the hydraulic tubing that hangs between the valve piece are provided with right energy storage, so that non-rod aircraft tractor lifting aircraft puts in place and rear pressure in hydraulic tubing is carried out pressurize, greatly increased the safety performance of non-rod aircraft tractor, improved the driver comfort of chaufeur, simplified operation, steadily comfortable when automatic leveling, can not make the System Sudden decompression cause great impact to vehicle and aircraft.
suspension valve piece described in the utility model comprises valve body, be provided with left electromagnetic switch spool in valve body, right electromagnetic switch spool, nonreturn valve core, relief pressure valve cartridge and air cock valve, left electromagnetic switch spool and right electromagnetic switch spool are connected in parallel through oil circuit, the oil circuit oil revolving end of right electromagnetic switch spool is provided with nonreturn valve core, be beneficial to prevent oil return, assurance is to left suspension fluid cylinder and right suspension fluid cylinder normal fuel injection, be serially connected with relief pressure valve cartridge on the oil circuit of right electromagnetic switch spool, to guarantee the pressure in the fuel feeding process, air cock valve in parallel on the oil circuit of relief pressure valve cartridge, be beneficial to remove the gas in oil circuit, when non-rod aircraft tractor takes aircraft nosewheel and lifting in one's arms and puts in place, hang the right electromagnetic switch spool action in the valve piece, be communicated with oil circuit, hang respectively fuel feeding in fluid cylinder and right suspension fluid cylinder left, the expansion link that drives left suspension fluid cylinder and right suspension fluid cylinder stretches out and the lifting car body respectively, after the position transduser on left suspension fluid cylinder and right suspension fluid cylinder upper side support is sensed desired location, right electromagnetic switch spool return, lifting stops, rely on the pressure of left energy storage and right energy storage to carry out pressurize, after non-rod aircraft tractor puts down aircraft, hang the left electromagnetic switch spool action of valve piece, left suspension fluid cylinder and the oil return of right suspension fluid cylinder, the expansion link of left suspension fluid cylinder and right suspension fluid cylinder is regained respectively, car body rolls back down initial condition gradually.
the utility model is owing to adopting said structure, realized the chassis height of non-rod aircraft tractor is regulated automatically, owing to adopting oleo-pneumatic suspension, greatly improved the driver comfort of non-rod aircraft tractor, steadily comfortable when automatic leveling, can not impact to aircraft, chaufeur can not felt any discomfort yet, adopt the form of solenoid directional control valve and position transduser combination to realize accurate automatic leveling, simplified the operation of chaufeur, make non-rod aircraft tractor more intelligent, add energy storage to play the effect of pressurize in hydraulic tubing simultaneously, improved the safety of this system, the System Sudden decompression is impacted vehicle and aircraft, avoid can causing vehicle body injustice and chassis appearance decline to a certain degree after taking the aircraft nosewheel in one's arms, make chassis remain the pulsation-free state, has novel structure, car body is steady, meet the working condition requirement of vehicle, improve the advantages such as the interior non-rod aircraft tractor serviceability of industry.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the mounting structure schematic diagram in the utility model.
Fig. 3 is the left view of Fig. 2.
Reference numeral: 1: left suspension fluid cylinder; 2: left energy storage; 3: hang the valve piece; 4: hydraulic tubing; 5: position transduser; 6: bearing pin; 7: right suspension fluid cylinder; 9: right energy storage; 10: left electromagnetic switch spool; 11: right electromagnetic switch spool; 13: the relief pressure valve cartridge core; 14: the air cock valve.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated:
as shown in drawings, a kind of non-rod aircraft tractor automatic horizontal control system, comprise vehicle frame, front axle, left suspension fluid cylinder 1, right suspension fluid cylinder 2 and fuel tank, the wheel inboard at front axle two ends is respectively equipped with bearing, left suspension fluid cylinder 1, right suspension fluid cylinder 2 lower ends are fixedly connected with front axle through bearing respectively, the telescopic upper end bar is fixedly connected with vehicle frame through bearing pin 6 respectively, left suspension fluid cylinder 1, right suspension fluid cylinder 7 is connected with fuel tank through hydraulic tubing 4 respectively, it is characterized in that comprising suspension valve piece 3, left energy storage 2, right energy storage 9, position transduser 5 and slippage pump, the expansion link side of described left suspension fluid cylinder 1 and right suspension fluid cylinder 2 is respectively equipped with position transduser 5, position transduser 5 is connected with control system, whether put in place with the extension elongation of responding to left suspension fluid cylinder 1 and right suspension fluid cylinder 7 expansion links, the hydraulic tubing 4 of described fuel tank near-end is provided with slippage pump, hanging valve piece 3 one ends is connected with right suspension fluid cylinder 7 with left suspension fluid cylinder 1 respectively, the other end is connected with slippage pump, be beneficial to cut off or be communicated with oil circuit, realize the accurately effect of leveling automatically, simplified the operation of chaufeur, left suspension fluid cylinder 1 and the hydraulic tubing 4 that hangs between valve piece 3 are provided with left energy storage 2, right suspension fluid cylinder 7 and the hydraulic tubing 4 that hangs between valve piece 3 are provided with right energy storage 9, so that non-rod aircraft tractor lifting aircraft puts in place and rear pressure in hydraulic tubing 4 is carried out pressurize, greatly increased the safety performance of non-rod aircraft tractor, improved the driver comfort of chaufeur, simplified operation, steadily comfortable when automatic leveling, can not make the System Sudden decompression cause great impact to vehicle and aircraft.
The utility model when mounted, left suspension fluid cylinder 1 and right suspension fluid cylinder 2 are fixed on the bearing of vehicle frame and front axle by bearing pin 6 respectively, by changing left suspension fluid cylinder 1 and right suspension fluid cylinder 7 extension bar length are regulated the non-rod aircraft tractor height, position transduser 5 is arranged on a side fluid cylinder, induction fluid cylinder extension elongation puts in place judging whether, left energy storage be arranged on left suspension fluid cylinder near, right energy storage be arranged on right suspension fluid cylinder near, after suspension valve piece 3 is positioned at front axle top, operator's compartment, be used for cutting off or UNICOM's oil circuit.
the utility model is before the towing aircraft nosewheel, discharge by the gas that the air cock valve will hang in oil circuit in the valve piece, when non-rod aircraft tractor takes the aircraft lifting in one's arms, hang right electromagnetic switch spool 11 actions in valve piece 3, left electromagnetic switch spool 10 is closed, hydraulic oil in fuel tank hangs respectively fuel feeding in fluid cylinder 1 and right suspension fluid cylinder 7 left through oil circuit and hydraulic tubing, the expansion link that drives left suspension fluid cylinder 1 and right suspension fluid cylinder 7 stretches out and the lifting car body respectively, after the position transduser 5 induction expansion links of left suspension fluid cylinder 1 and right suspension fluid cylinder 7 sides arrive desired location, right electromagnetic switch spool 11 returns, lifting stops, rely on the pressure of left energy storage 2 and right energy storage 9 to carry out pressurize, after non-rod aircraft tractor puts down the aircraft nosewheel, hang left electromagnetic switch spool 10 actions in valve piece 3, hydraulic oil in left suspension fluid cylinder 1 and right suspension fluid cylinder 7 is respectively through the oil circuit oil return of hydraulic tubing and left electromagnetic switch spool 10, the expansion link of left suspension fluid cylinder 1 and right suspension fluid cylinder 7 reclaims gradually, roll back initial condition under vehicle frame.
the utility model is owing to adopting said structure, realized the chassis height of non-rod aircraft tractor is regulated automatically, owing to adopting oleo-pneumatic suspension, greatly improved the driver comfort of non-rod aircraft tractor, steadily comfortable when automatic leveling, can not impact to aircraft, chaufeur can not felt any discomfort yet, adopt the form of solenoid directional control valve and position transduser combination to realize accurate automatic leveling, simplified the operation of chaufeur, make non-rod aircraft tractor more intelligent, add energy storage to play the effect of pressurize in hydraulic tubing simultaneously, improved the safety of this system, the System Sudden decompression is impacted vehicle and aircraft, avoid can causing vehicle body injustice and chassis appearance decline to a certain degree after taking the aircraft nosewheel in one's arms, make chassis remain the pulsation-free state, has novel structure, car body is steady, meet the working condition requirement of vehicle, improve the advantages such as the interior non-rod aircraft tractor serviceability of industry.
Claims (2)
1. non-rod aircraft tractor automatic horizontal control system, comprise vehicle frame, front axle, left suspension fluid cylinder, right suspension fluid cylinder and fuel tank, the wheel inboard at front axle two ends is respectively equipped with bearing, left suspension fluid cylinder, right suspension fluid cylinder lower end is fixedly connected with front axle through bearing respectively, the telescopic upper end bar is fixedly connected with vehicle frame through bearing pin respectively, left suspension fluid cylinder, right suspension fluid cylinder is connected with fuel tank through hydraulic tubing respectively, it is characterized in that comprising suspension valve piece, left energy storage, right energy storage, position transduser and slippage pump, the expansion link side of described left suspension fluid cylinder and right suspension fluid cylinder is respectively equipped with position transduser, the hydraulic tubing of described fuel tank near-end is provided with slippage pump, hanging valve piece one end is connected with right suspension fluid cylinder with left suspension fluid cylinder respectively, the other end is connected with slippage pump, described left suspension fluid cylinder and the hydraulic tubing that hangs between the valve piece are provided with left energy storage, described right suspension fluid cylinder and the hydraulic tubing that hangs between the valve piece are provided with right energy storage.
2. a kind of non-rod aircraft tractor automatic horizontal control system according to claim 1, it is characterized in that suspension valve piece described in the utility model comprises valve body, be provided with left electromagnetic switch spool, right electromagnetic switch spool, nonreturn valve core, relief pressure valve cartridge and air cock valve in valve body, left electromagnetic switch spool and right electromagnetic switch spool are connected in parallel through oil circuit, the oil circuit oil revolving end of right electromagnetic switch spool is provided with nonreturn valve core, be serially connected with relief pressure valve cartridge on the oil circuit of right electromagnetic switch spool, air cock valve in parallel on the oil circuit of relief pressure valve cartridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202788566U CN203282998U (en) | 2013-05-21 | 2013-05-21 | Automatic leveling system of rodless aircraft tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202788566U CN203282998U (en) | 2013-05-21 | 2013-05-21 | Automatic leveling system of rodless aircraft tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203282998U true CN203282998U (en) | 2013-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202788566U Withdrawn - After Issue CN203282998U (en) | 2013-05-21 | 2013-05-21 | Automatic leveling system of rodless aircraft tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203282998U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241094A (en) * | 2013-05-21 | 2013-08-14 | 威海广泰空港设备股份有限公司 | Automatic leveling system of rodless aircraft tractor |
-
2013
- 2013-05-21 CN CN2013202788566U patent/CN203282998U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103241094A (en) * | 2013-05-21 | 2013-08-14 | 威海广泰空港设备股份有限公司 | Automatic leveling system of rodless aircraft tractor |
| CN103241094B (en) * | 2013-05-21 | 2016-05-25 | 威海广泰空港设备股份有限公司 | The automatic horizontal control system of non-rod aircraft tractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131113 Effective date of abandoning: 20160525 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |