CN203047535U - Nose landing gear protective device of rodless aircraft tractor - Google Patents
Nose landing gear protective device of rodless aircraft tractor Download PDFInfo
- Publication number
- CN203047535U CN203047535U CN2012206775433U CN201220677543U CN203047535U CN 203047535 U CN203047535 U CN 203047535U CN 2012206775433 U CN2012206775433 U CN 2012206775433U CN 201220677543 U CN201220677543 U CN 201220677543U CN 203047535 U CN203047535 U CN 203047535U
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- 230000001681 protective effect Effects 0.000 title abstract description 7
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 239000010720 hydraulic oil Substances 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model provides an aircraft nose landing gear protective device of a rodless aircraft tractor. The aircraft nose landing gear protective device of the rodless aircraft tractor is mainly characterized in that one end of a herringbone draw rod mechanism is connected with a machine body through a knuckle bearing, and the other end of the herringbone draw rod mechanism is connected with a lifting platform through a torque sensing mechanism. Two ends of a lower draw rod mechanism are respectively connected with the machine body and the lifting platform through knuckle bearings. A stopping machine wheel mechanism is connected with the lifting platform through a pin shaft, two ends of lifting oil cylinders are connected with the machine body and the lifting platform through knuckle bearings, and telescopic arms are connected with the lifting platforms through cushion blocks. Folding arm mechanisms are connected with the telescopic arms through pin shafts and driven through folding arm oil cylinders which are installed among the folding arm mechanisms and the telescopic arms. Plug pin mechanisms are connected with the folding arm mechanisms through bolts. Grounding wheels are connected with the lifting platform through the pin shafts and baffles. The aircraft nose landing gear protective device of the rodless aircraft tractor has the advantages that when aircraft classes listed in the use range of an aircraft tractor are dragged and pushed, the aircraft nose landing gear protective device is reliable in protection effect on a nose landing gear of the aircraft, and the problem that when the rodless aircraft tractor detects various function and performance parameters, whether the rodless aircraft tractor can cause heavy economic losses and damage on the aircraft nose landing gear or not can not be confirmed is solved.
Description
Technical field
The utility model relates to a kind of non-rod aircraft tractor, particularly a kind of non-rod aircraft tractor that has protection aircraft nose-gear system.
Background technology
At present; China is homemade all to be that rod aircraft tractor is arranged; fallen behind epoch than international non-rod aircraft tractor, and several non-rod aircraft tractors of domestic trial-production are not owing to there is an aircraft nose-gear protection system, fixed point testing agency requires to drag leads real machine test and can't realize.Simultaneously, to all in range of use tens kinds, twenties kinds of aircrafts are tested the aircraft that foreign aircraft framework manufacturer produces by bench teat, also are impossible realize.
Summary of the invention
The purpose of this utility model is the deficiency that exists in the above-mentioned technology, and a kind of nose-gear fender guard of non-rod aircraft tractor is provided.Drag lead, aircraft kind time-like that this non-rod aircraft tractor of pushing tow range of use is listed, the nose-gear of this aircraft is had the failure-free protective effect, avoid causing aircraft playing, fall, causing when transporting the fatal crass owing to nose-gear is damaged.Can solve non-rod aircraft tractor when various functions and performance perameter, can't determine and damage and heavy economic losses the aircraft nose-gear when detecting.
The purpose of this utility model is to realize like this, install one at the front end of non-rod aircraft tractor and lift mechanism, comprise herringbone drag link mechanism, body, torque sensing mechanism, lift platform, lower link mechanism, retaining wheel mechanism, lift oil cylinder, telescopic boom, folding arm mechanism, insert-pull pin mechanism, bolt, wheel contacts to earth, it is characterized in that, the herringbone drag link mechanism is connected with body by oscillating bearing, the other end by torque sensing mechanism with lift platform and link to each other.Lower link mechanism two ends by oscillating bearing respectively with body with lift platform and link to each other.Retaining wheel mechanism by bearing pin with lift platform and link to each other, and the hydraulic oil cylinder driving by same bearing pin connection.Lift the oil cylinder two ends by oscillating bearing and body with lift platform and link to each other.Telescopic boom by cushion block with lift platform and link to each other, and have telescopic boom cylinder to drive.Folding arm mechanism links to each other with telescopic boom by bearing pin and by being installed in folding arm hydraulic oil cylinder driving between the two.Insert-pull pin mechanism links to each other with folding arm mechanism by bolt.Contact to earth wheel by bearing pin and baffle plate with lift platform and link to each other.
Two pull bars about the bottom add the special push-pull effort sensor of customized design, and by suffered push-and-pull STRESS VARIATION, the converts analog signal is exported.And the tractive force by inspection vehicle demarcates, and compares with the stressed limit data of the nose-gear of the corresponding type of planemaker, obtains the limit data that prestores.To record data and put muchly by signal, and be converted into analog current signal and pass controller back and compare with the limit that prestores, judge whether its tractive force transfinites.
When lifting after mechanism holds tightly, holds up aircraft nose wheel, the herringbone pull bar on two lower links and top bears to drag and leads (drawing forward), pushing tow (to pusher) aircraft, enters hardstand, maintenance place, breaks away from connecting bridge before taking off and enter designated runway.In two lower links, be provided with the push-pull effort sensor, can record aircraft towing and drag the moment of leading, bearing when pushing tow, acceleration, deceleration, zero load, fully loaded aircraft, and moment numerical value is transferred to controller.Axis system at last herringbone pull bar adds torque sensor equally, can record the moment of torsion that aircraft towing bears when the aircraft nose-gear is in various angles, speed when turning, and torque value is transferred to controller, the pushing away of input, pulling force and various corner, the speed of a motor vehicle and moment of torsion and be pre-stored in operating range in the controller interior corresponding tractive force of various aircratfsmans and torque value and compare, when reporting to the police automatic train stop when arriving 100% greater than 70% the time.Can make the fatal crass's that the aircraft nose-gear avoids being tractive force, the mistake moment of torsion damages and cause grave accident thus.When sensor had fault, tractor truck can not carry out traction work simultaneously, thereby guaranteed the safety of nose-gear.
The utility model has the advantages that; drag lead, aircraft kind time-like that this non-rod aircraft tractor of pushing tow range of use is listed; nose-gear to this aircraft has the failure-free protective effect, avoids causing aircraft playing, fall, causing when transporting the fatal crass owing to nose-gear is damaged.
Can solve non-rod aircraft tractor when various functions and performance perameter, can't determine and damage and heavy economic losses the aircraft nose-gear when detecting.
Description of drawings
Fig. 1 is constructional drawing of the present utility model
Fig. 2 is lower link mechanism structure figure of the present utility model
Fig. 3 is torque sensing mechanism structure figure of the present utility model
The specific embodiment
Below in conjunction with accompanying drawing present embodiment is described further
As shown in Figure 1, herringbone drag link mechanism 10 1 ends are connected with body by oscillating bearing, the other end by torque sensing mechanism 11 with lift platform 6 and link to each other.Lower link mechanism 9 two ends by oscillating bearing respectively with body with lift platform 6 and link to each other.Retaining wheel mechanism 7 by bearing pin with lift platform 6 and link to each other, and the hydraulic oil cylinder driving by same bearing pin connection.Lift oil cylinder 5 two ends by oscillating bearing and body with lift platform 6 and link to each other.Telescopic boom 3 by cushion block with lift platform and link to each other, and have telescopic boom cylinder to drive.Folding arm mechanism 1 links to each other with telescopic boom 3 by bearing pin and by being installed in folding arm hydraulic oil cylinder driving between the two.Insert-pull pin mechanism 2 links to each other with folding arm mechanism 1 by bolt.Contact to earth wheel 4 by bearing pin and baffle plate with lift platform 6 and link to each other.Front apron mechanism 8 lower ends with bearing pin with lift platform and be connected, the upper end with spring with lift the platform welding
Folding arm mechanism 1 left-right symmetric when folding arm is stretched out, is stretched out by telescopic boom 3, lifts platform 6 and descends, and the wheel 4 that contacts to earth lands, and then near aircraft nose wheel, again by 90 ° of arm 1 invaginations, insert-pull pin 2 inserts in the knock hole automatically.Two telescopic booms are held aircraft wheel simultaneously tightly then, and up to front apron 8 its sensor output signals, retaining wheel 7 presses down up to reaching set pressure, lift platform 6 then and begin to rise up to reaching constrain height, the various work that can push away, draw aircraft this moment.
As shown in Figure 2, pull bar 1 links to each other with push-pull effort sensor 3 by connecting double-screw bolt 2, and same push-pull effort sensor 3 also links to each other with pull bar 4 by connecting double-screw bolt 2.When non-rod aircraft tractor pushing tow or traction, push-pull effort sensor 3, front and back two sectional type pull bar 1 and pull bar 4 and push-and-pull sensor 3 in the lower link.Connect by connecting double-screw bolt 2, be subjected to pass signal back controller after the push-pull effort load.
As shown in Figure 3, torque sensor 4 lower ends connect by bolt and link to each other with platform connecting panel 1, and lift platform and platform connecting panel 1 is welded as a whole.Torque sensor 4 upper ends link to each other with herringbone drag link mechanism 2 by key 3, transmit moment of torsion.Axle 5 one ends and 1 welding of platform connecting panel, the other end links to each other with herringbone drag link mechanism 2 by jam nut 6.
When the tractor truck pushing tow, when towing aircraft turns to, torque sensor 4 is connected with herringbone pull bar 2 by key 3 on the one hand; On the other hand, and lift the platform connecting panel and be connected, two aspects form the static torque transmission.Spacer 7, jam nut 6 make main platform be connected with the herringbone pull bar by axle 5, bear the moment of torsion power of other directions in addition.When non-rod aircraft tractor pushed away or draw aircraft to turn to, torque sensor 4 was passed the torque value that produces back controller immediately.
In sum; two kinds of sensors are passed tractive force and moment of torsion back controller immediately; and the tractive force that in advance its each planemaker is provided by inspection vehicle, the respective value of torque limit data prestore; by with controller in the real-time contrast of data; and in time make and reporting to the police and halt instruction carries out the control of tractive force and moment of torsion, thereby assurance aircraft nose-gear being perfectly safe in above-mentioned action.
Claims (4)
1. the aircraft nose-gear fender guard of a non-rod aircraft tractor; install one at the front end of non-rod aircraft tractor and lift mechanism; comprise the herringbone drag link mechanism; body; torque sensing mechanism; lift platform; lower link mechanism; retaining wheel mechanism; lift oil cylinder; telescopic boom; folding arm mechanism; insert-pull pin mechanism; bolt; wheel contacts to earth; it is characterized in that; the herringbone drag link mechanism is connected with body by oscillating bearing; the other end by torque sensing mechanism with lift platform and link to each other; lower link mechanism two ends by oscillating bearing respectively with body with lift platform and link to each other; retaining wheel mechanism by bearing pin with lift platform and link to each other; and the hydraulic oil cylinder driving that connects by same bearing pin; lift the oil cylinder two ends by oscillating bearing and body with lift platform and link to each other; telescopic boom by cushion block with lift platform and link to each other; and there is telescopic boom cylinder to drive; folding arm mechanism links to each other with telescopic boom by bearing pin and by being installed in folding arm hydraulic oil cylinder driving between the two; insert-pull pin mechanism links to each other with folding arm mechanism by bolt, contact to earth wheel by bearing pin and baffle plate with lift platform and link to each other.
2. the aircraft nose-gear fender guard of a kind of non-rod aircraft tractor according to claim 1 is characterized in that, when the tractor truck pushing tow, when towing aircraft turns to, torque sensor is connected with the herringbone pull bar by key on the one hand; On the other hand, and lift the platform connecting panel and be connected, two aspects form the static torque transmission, and spacer, jam nut make main platform be connected with the herringbone pull bar by axle, bear the moment of torsion power of other directions in addition; When non-rod aircraft tractor pushed away or draw aircraft to turn to, torque sensor was passed the torque value that produces back controller immediately.
3. the aircraft nose-gear fender guard of a kind of non-rod aircraft tractor according to claim 1; it is characterized in that; pull bar links to each other with the push-pull effort sensor by connecting double-screw bolt; the push-pull effort sensor links to each other with pull bar by connecting double-screw bolt; when non-rod aircraft tractor pushing tow or traction, push-pull effort sensor, front and back two sectional type pull bar and push-and-pull sensor in the lower link; connect by connecting double-screw bolt, be subjected to pass signal back controller after the push-pull effort load.
4. the aircraft nose-gear fender guard of a kind of non-rod aircraft tractor according to claim 1; it is characterized in that; axis system at last herringbone pull bar adds torque sensor; can record aircraft towing when turning the aircraft nose-gear in various angles; the moment of torsion that bears during speed; and torque value is transferred to controller; pushing away of input; pulling force and various corner; the speed of a motor vehicle and moment of torsion and the corresponding tractive force of various aircratfsmans and the torque value that are pre-stored in the operating range in the controller compare; when reporting to the police automatic train stop when arriving 100% greater than 70% the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206775433U CN203047535U (en) | 2012-12-11 | 2012-12-11 | Nose landing gear protective device of rodless aircraft tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206775433U CN203047535U (en) | 2012-12-11 | 2012-12-11 | Nose landing gear protective device of rodless aircraft tractor |
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| Publication Number | Publication Date |
|---|---|
| CN203047535U true CN203047535U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206775433U Expired - Fee Related CN203047535U (en) | 2012-12-11 | 2012-12-11 | Nose landing gear protective device of rodless aircraft tractor |
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| Country | Link |
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| CN (1) | CN203047535U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085982A (en) * | 2012-12-11 | 2013-05-08 | 沈阳北方交通重工有限公司 | Device for protecting nose landing gear of rodless aircraft tractor |
| CN112455711A (en) * | 2021-01-12 | 2021-03-09 | 新乡平原航空技术工程有限公司 | Aircraft tractor |
-
2012
- 2012-12-11 CN CN2012206775433U patent/CN203047535U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103085982A (en) * | 2012-12-11 | 2013-05-08 | 沈阳北方交通重工有限公司 | Device for protecting nose landing gear of rodless aircraft tractor |
| CN112455711A (en) * | 2021-01-12 | 2021-03-09 | 新乡平原航空技术工程有限公司 | Aircraft tractor |
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Granted publication date: 20130710 Termination date: 20151211 |