CN104002986A - Rodless aircraft tractor clamping and lifting device - Google Patents
Rodless aircraft tractor clamping and lifting device Download PDFInfo
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- CN104002986A CN104002986A CN201410265197.1A CN201410265197A CN104002986A CN 104002986 A CN104002986 A CN 104002986A CN 201410265197 A CN201410265197 A CN 201410265197A CN 104002986 A CN104002986 A CN 104002986A
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- bearing bucket
- hydraulic pressure
- lifting load
- pressure cylinder
- lifting
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Abstract
The invention discloses a rodless aircraft tractor clamping and lifting device which comprises a base, two hinge heads, two rotary rear baffles, two rotary rear baffle hydraulic cylinder components, a plurality of cylindrical pins, a lifting bearing bucket, two lifting bearing bucket hydraulic cylinder components, two lifting bearing bucket auxiliary hydraulic cylinder components, two compressing supports and two compressing support hydraulic cylinder components. According to the rodless aircraft tractor clamping and lifting device, the number of the degrees of freedom of a mechanism is changed through the limitation of the stroke of the hydraulic cylinder components, and therefore the lifting bearing bucket is changed to rotate in a vertical plane from the horizontal motion, intermediate links are effectively reduced, safety can be improved, the complexity degree of a control system can be lowered, meanwhile, the safety can be improved, hydraulic loops can be reduced, a power device can be arranged in a centralized mode, and the device has the advantages of being reasonable in structural design, convenient to operate and the like.
Description
Technical field
The invention belongs to airport ground special equipment technical field, particularly relate to a kind of non-rod aircraft tractor clamping-lifting device.
Background technology
Aircraft towing be a kind of on airport ground the support equipment for towing aircraft, the feature such as have that vehicle body is low, dead weight of vehicle is large, tractive force is large.Be divided into and have bar tractor truck and without bar tractor truck according to the difference of its structure.Wherein, because the volume without bar tractor truck self is little, lightweight, working area is little, need not change the features such as draw bar and become gradually the main force of aircraft towing, become thus the focus of airplane ground support equipment development in the world.And one of key point that judges non-rod aircraft tractor quality is exactly itself and aircraft butted part, the i.e. quality of clamping-lifting device.Clamping-lifting device on non-rod aircraft tractor is the key device that vehicle is connected with aircraft, and the quality of its performance and working condition will directly affect the safety of aircraft floor service guarantee operation with normal.When docking aircraft, pass through the actions of many group hydraulic actuating cylinders without the clamping-lifting device of bar tractor truck, two self-contained process in succession of process clamping and lifting, hold aircraft nose wheel be lifted away from tightly ground 100-150mm.But there is following point in conventional clamping-lifting device at present: lifting mechanism adopts the lifting of single pole ball pivot, easily causes aircraft nose-gear vertical line do not overlap with center of gravity and produce additional torque in the process of lifting, thereby to impacting its service life; The revoliving arm of holding device needs two cylinder circuit to control revolution inwardly motion, causes the redundancy of hydraulic circuit.The engine installation of lifting mechanism and clamping device distributes and disperses, and the integration of control system is bad, and complexity increases.
Summary of the invention
In order to address the above problem, to the object of the present invention is to provide one can improve safety and reduce hydraulic circuit, the non-rod aircraft tractor clamping-lifting device of centralized arrangement engine installation.
In order to achieve the above object, non-rod aircraft tractor clamping-lifting device provided by the invention comprises that pedestal, two articulated joints, two revolution back shields, two revolution back shield hydraulic pressure cylinder assemblies, multiple straight pin, lifting load-bearing bucket, two lifting load-bearing bucket hydraulic pressure cylinder assemblies, two lifting load-bearing bucket auxiliary hydraulic pressure cylinder components, two compression supports and two compress bracket hydraulic cylinder components; Wherein pedestal is made up of cross bar and two hold-down arms, and wherein the rear end of two hold-down arms is connected to the two ends of cross bar, and the front end of two hold-down arms is formed with respectively a transverse opening; The outside, rear end of each hold-down arm is connected with respectively an articulated joint; The middle part of each revolution back shield is connected in the opening of a hold-down arm by a straight pin; The rear end of each revolution back shield hydraulic pressure cylinder assembly is hinged in an articulated joint that is positioned at hold-down arm rear end, front end is hinged on a revolution back shield rear end that is positioned at the same side with it, therefore under the drive of revolution back shield hydraulic pressure cylinder assembly, turns round back shield and can in horizontal surface, rotate; The cross section of lifting load-bearing bucket is L-shaped, be horizontally installed between two hold-down arms middle parts, and aft end face top is formed with an after cross member backward with opening mode edge forward; The rear end of two lifting load-bearing bucket hydraulic pressure cylinder assemblies is hinged on respectively the position, both sides, front end face bottom of cross bar, and front end is hinged on position, both sides, lifting load-bearing bucket aft end face bottom; The rear end of two lifting load-bearing bucket auxiliary hydraulic pressure cylinder components is separately fixed at position, both sides, cross bar front end face middle part, and front end is hinged on position, both sides, lifting load-bearing bucket aft end face middle part; The lower end of two compression supports is hinged on the position, both sides, upper end of lifting load-bearing bucket by straight pin; The upper end of each compression bracket hydraulic cylinder component is hinged on respectively the middle part, rear end of a compression support, lower end is hinged on position, both sides, after cross member outer end, and revolution back shield hydraulic pressure cylinder assembly, lifting load-bearing bucket hydraulic pressure cylinder assembly, lifting load-bearing bucket auxiliary hydraulic pressure cylinder component and the hydraulic actuating cylinder compressing on bracket hydraulic cylinder component are connected with hydraulic efficiency pressure system simultaneously.
Described compression support is made up of two prone bows and the adapter plate that is arranged on bow upper end.
The downward-sloping formation from back to front of the surface, lower surface of described lifting load-bearing bucket, the angle between this dip plane and horizontal surface is 10 °.
Non-rod aircraft tractor clamping-lifting device provided by the invention is to utilize the restriction of the stroke of hydraulic pressure cylinder assembly to change the number of mechanism freedom, thereby make lifting load-bearing bucket change into the rotation in perpendicular by horizontal motion, effectively reduce intermediate link, thereby can improve safety and reduce the complexity of control system, it can improve safety and reduce hydraulic circuit simultaneously, and can centralized arrangement engine installation, there is reasonable in design, the advantage such as easy to operate.
Brief description of the drawings
Fig. 1 is non-rod aircraft tractor clamping-lifting device provided by the invention and aircraft nose wheel structural representation when starting to operate.
Fig. 2 is non-rod aircraft tractor clamping-lifting device provided by the invention and aircraft nose wheel structure side view when starting to operate.
Fig. 3 is non-rod aircraft tractor clamping-lifting device provided by the invention and aircraft nose wheel structural representation in operating process.
Fig. 4 is non-rod aircraft tractor clamping-lifting device provided by the invention and aircraft nose wheel structural representation when having operated.
Fig. 5 is for having operated non-rod aircraft tractor clamping-lifting device provided by the invention and aircraft nose wheel structure side view.
Detailed description of the invention
As Figure 1-Figure 5, non-rod aircraft tractor clamping-lifting device provided by the invention comprises that pedestal 1, two articulated joints 2, two revolution back shields 4, two revolution back shield hydraulic pressure cylinder assemblies 3, multiple straight pin 5, lifting load-bearing bucket 8, two lifting load-bearing bucket hydraulic pressure cylinder assemblies 6, two lifting load-bearing bucket auxiliary hydraulic pressure cylinder components 7, two compression supports 9 and two compress bracket hydraulic cylinder components 10; Wherein pedestal 1 is made up of cross bar 12 and two hold-down arms 13, and wherein the rear end of two hold-down arms 13 is connected to the two ends of cross bar 12, and the front end of two hold-down arms 13 is formed with respectively a transverse opening 14; The outside, rear end of each hold-down arm 13 is connected with respectively an articulated joint 2; The middle part of each revolution back shield 4 is connected to by a straight pin in the opening 14 of a hold-down arm 13; The rear end of each revolution back shield hydraulic pressure cylinder assembly 3 is hinged in an articulated joint 2 that is positioned at hold-down arm 13 rear ends, front end is hinged on revolution back shield 4 rear ends that are positioned at the same side with it, therefore under the drive of revolution back shield hydraulic pressure cylinder assembly 3, turns round back shield 4 and can in horizontal surface, rotate; The cross section of lifting load-bearing bucket 8 is L-shaped, be horizontally installed between two hold-down arm 13 middle parts, and aft end face top is formed with an after cross member 15 backward with opening mode edge forward; The rear end of two lifting load-bearing bucket hydraulic pressure cylinder assemblies 6 is hinged on respectively the position, both sides, front end face bottom of cross bar 12, and front end is hinged on lifting load-bearing bucket 8 positions, both sides, aft end face bottom; The rear end of two lifting load-bearing bucket auxiliary hydraulic pressure cylinder components 7 is separately fixed at cross bar 12 positions, both sides, front end face middle part, and front end is hinged on lifting load-bearing bucket 8 positions, both sides, aft end face middle part; The lower end of two compression supports 9 is hinged on the position, both sides, upper end of lifting load-bearing bucket 8 by straight pin 5; The upper end of each compression bracket hydraulic cylinder component 10 is hinged on respectively the middle part, rear end of a compression support 9, lower end is hinged on after cross member 15 positions, both sides, outer end, and revolution back shield hydraulic pressure cylinder assembly 3, lifting load-bearing bucket hydraulic pressure cylinder assembly 6, lifting load-bearing bucket auxiliary hydraulic pressure cylinder component 7 and the hydraulic actuating cylinder compressing on bracket hydraulic cylinder component 10 are connected with hydraulic efficiency pressure system simultaneously.
Described compression support 9 is made up of with the adapter plate 17 that is arranged on bow 16 upper ends two prone bows 16.
The downward-sloping formation from back to front of the surface, lower surface of described lifting load-bearing bucket 8, the angle between this dip plane and horizontal surface is 10 °.
In the time need to utilizing non-rod aircraft tractor clamping-lifting device provided by the invention to clamp with lifting to the front-wheel 11 on aircraft, first by staff, aircraft towing is driven to tram, two front-wheels 11 that then make the aircraft nose-gear resting on the ground and be connected to nose-gear lower end enter into the lifting load-bearing bucket 8 of this clamping-lifting device.Start afterwards revolution back shield hydraulic pressure cylinder assembly 3 and make the piston rod on it protruding, thereby drive the front end of two revolution back shields 4 inwardly to rotate.Then starting on lifting load-bearing bucket hydraulic pressure cylinder assembly 6 and auxiliary hydraulic pressure cylinder component 7 makes the piston rod on it simultaneously protruding, clamping-lifting device is moved backward with respect to front-wheel 11, in the time that auxiliary hydraulic pressure cylinder component 7 reaches the limit of stroke and front-wheel 11 and contacts with revolution back shield 4, lifting load-bearing bucket hydraulic pressure cylinder assembly 6 continues motion owing to not reaching the limit of stroke, thereby the lower surface of lifting load-bearing bucket 8 is upwards rotated, thereby by lifting load-bearing bucket 8 and interior front-wheel 11 lifting 10～15cm thereof.Finally starting compression bracket hydraulic cylinder component 10 makes the piston rod on it protruding, thereby the front end that compresses support 9 is overturn downwards, until adapter plate 17 front end faces are pressed on front-wheel 11, now front-wheel 11 is subject to 3 clamping actions, completes thus whole lifting clamping process.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all embodiments.And the apparent variation of being extended out thus or variation are still among the protection domain in the invention.
Claims (3)
1. non-rod aircraft tractor clamping-lifting device, is characterized in that: it comprises pedestal (1), two articulated joints (2), two revolution back shields (4), two revolution back shield hydraulic pressure cylinder assemblies (3), multiple straight pin (5), a lifting load-bearing bucket (8), two lifting load-bearing bucket hydraulic pressure cylinder assemblies (6), two lifting load-bearing bucket auxiliary hydraulic pressure cylinder components (7), two compression supports (9) and two compression bracket hydraulic cylinder components (10); Wherein pedestal (1) is made up of cross bar (12) and two hold-down arms (13), wherein the rear end of two hold-down arms (13) is connected to the two ends of cross bar (12), and the front end of two hold-down arms (13) is formed with respectively a transverse opening (14); The outside, rear end of each hold-down arm (13) is connected with respectively an articulated joint (2); The middle part of each revolution back shield (4) is connected to by a straight pin in the opening (14) of a hold-down arm (13); The rear end of each revolution back shield hydraulic pressure cylinder assembly (3) is hinged in an articulated joint (2) that is positioned at hold-down arm (13) rear end, front end is hinged on revolution back shield (4) rear end that is positioned at the same side with it, and therefore under the drive of revolution back shield hydraulic pressure cylinder assembly (3), revolution back shield (4) can rotate in horizontal surface; The cross section of lifting load-bearing bucket (8) is L-shaped, be horizontally installed between two hold-down arms (13) middle part, and aft end face top is formed with an after cross member (15) backward with opening mode edge forward; The rear end of two lifting load-bearing bucket hydraulic pressure cylinder assemblies (6) is hinged on respectively the position, both sides, front end face bottom of cross bar (12), and front end is hinged on position, both sides, lifting load-bearing bucket (8) aft end face bottom; The rear end of two lifting load-bearing bucket auxiliary hydraulic pressure cylinder components (7) is separately fixed at position, both sides, cross bar (12) front end face middle part, and front end is hinged on position, both sides, lifting load-bearing bucket (8) aft end face middle part; The lower end of two compression supports (9) is hinged on the position, both sides, upper end of lifting load-bearing bucket (8) by straight pin (5); The upper end of each compression bracket hydraulic cylinder component (10) is hinged on respectively the middle part, rear end of a compression support (9), lower end is hinged on position, after cross member (15) both sides, outer end, and revolution back shield hydraulic pressure cylinder assembly (3), lifting load-bearing bucket hydraulic pressure cylinder assembly (6), lifting load-bearing bucket auxiliary hydraulic pressure cylinder component (7) and the hydraulic actuating cylinder compressing on bracket hydraulic cylinder component (10) are connected with hydraulic efficiency pressure system simultaneously.
2. non-rod aircraft tractor clamping-lifting device according to claim 1, is characterized in that: described compression support (9) by two prone bows (16) and be arranged on bow (16) upper end adapter plate (17) form.
3. non-rod aircraft tractor clamping-lifting device according to claim 1, is characterized in that: surface, the lower surface downward-sloping formation from back to front of described lifting load-bearing bucket (8), the angle between this dip plane and horizontal surface is 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410265197.1A CN104002986A (en) | 2014-06-13 | 2014-06-13 | Rodless aircraft tractor clamping and lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410265197.1A CN104002986A (en) | 2014-06-13 | 2014-06-13 | Rodless aircraft tractor clamping and lifting device |
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| CN104002986A true CN104002986A (en) | 2014-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410265197.1A Pending CN104002986A (en) | 2014-06-13 | 2014-06-13 | Rodless aircraft tractor clamping and lifting device |
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| CN (1) | CN104002986A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106742031A (en) * | 2017-01-12 | 2017-05-31 | 中国民航大学 | One kind is without rod-type aircraft tractor wheel holding mechanism |
| CN107271154A (en) * | 2016-04-06 | 2017-10-20 | 哈尔滨飞机工业集团有限责任公司 | A kind of aircraft cat net tests load maintainer |
| CN107719689A (en) * | 2017-09-20 | 2018-02-23 | 彩虹无人机科技有限公司 | One kind is used for unmanned plane tow trailer device |
| CN107878131A (en) * | 2017-11-23 | 2018-04-06 | 广州普华灵动机器人技术有限公司 | tricycle traction bucket and tractor |
| CN108725836A (en) * | 2018-06-05 | 2018-11-02 | 荆门畅享光年机电技术服务有限公司 | A kind of intelligent multimode conveying device of amphibious aircraft |
| CN109071036A (en) * | 2016-03-18 | 2018-12-21 | 戈尔德霍弗股份公司 | tractor |
| CN110282147A (en) * | 2019-06-05 | 2019-09-27 | 李恒 | A kind of device for no rod-type aircraft tractor wheel holding mechanism |
| CN110371271A (en) * | 2019-08-06 | 2019-10-25 | 乔紫妍 | A kind of ship is lauched process and speed controllable device for the first time |
| CN112722312A (en) * | 2021-02-09 | 2021-04-30 | 中国民航大学 | Emergency rescue vehicle and emergency rescue method for airplane substitute wheel |
| CN114987786A (en) * | 2022-07-02 | 2022-09-02 | 哈尔滨理工大学 | Clamping-lifting device for rodless tractor of shipboard aircraft |
| CN115991287A (en) * | 2023-02-23 | 2023-04-21 | 沈阳坦择实业有限公司 | Unmanned electric rodless tractor for airplane |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5054714A (en) * | 1989-04-28 | 1991-10-08 | Man Gutehoffnungshutte Aktiengesellschaft | Aircraft tractor without tow-bar with adjustable tow arms |
| CN2635519Y (en) * | 2003-05-29 | 2004-08-25 | 北京阳光之路特种车辆技术有限公司 | Device for clamping and lifting airplane wheel |
| CN102673799A (en) * | 2012-04-13 | 2012-09-19 | 威海广泰空港设备股份有限公司 | Wheel holding mechanism of rodless aircraft tractor |
| CN102869573A (en) * | 2010-02-16 | 2013-01-09 | 以色列宇航工业有限公司 | Plane tractor |
| CN102951300A (en) * | 2012-12-02 | 2013-03-06 | 威海广泰空港设备股份有限公司 | Airplane nose wheel gripping device |
-
2014
- 2014-06-13 CN CN201410265197.1A patent/CN104002986A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5054714A (en) * | 1989-04-28 | 1991-10-08 | Man Gutehoffnungshutte Aktiengesellschaft | Aircraft tractor without tow-bar with adjustable tow arms |
| CN2635519Y (en) * | 2003-05-29 | 2004-08-25 | 北京阳光之路特种车辆技术有限公司 | Device for clamping and lifting airplane wheel |
| CN102869573A (en) * | 2010-02-16 | 2013-01-09 | 以色列宇航工业有限公司 | Plane tractor |
| CN102673799A (en) * | 2012-04-13 | 2012-09-19 | 威海广泰空港设备股份有限公司 | Wheel holding mechanism of rodless aircraft tractor |
| CN102951300A (en) * | 2012-12-02 | 2013-03-06 | 威海广泰空港设备股份有限公司 | Airplane nose wheel gripping device |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11142341B2 (en) | 2016-03-18 | 2021-10-12 | Goldhofer Ag | Towing vehicle |
| CN109071036A (en) * | 2016-03-18 | 2018-12-21 | 戈尔德霍弗股份公司 | tractor |
| CN109071036B (en) * | 2016-03-18 | 2022-07-15 | 戈尔德霍弗股份公司 | Tractor vehicle |
| CN107271154A (en) * | 2016-04-06 | 2017-10-20 | 哈尔滨飞机工业集团有限责任公司 | A kind of aircraft cat net tests load maintainer |
| CN106742031A (en) * | 2017-01-12 | 2017-05-31 | 中国民航大学 | One kind is without rod-type aircraft tractor wheel holding mechanism |
| CN107719689A (en) * | 2017-09-20 | 2018-02-23 | 彩虹无人机科技有限公司 | One kind is used for unmanned plane tow trailer device |
| CN107719689B (en) * | 2017-09-20 | 2019-06-18 | 彩虹无人机科技有限公司 | One kind being used for unmanned plane tow trailer device |
| CN107878131A (en) * | 2017-11-23 | 2018-04-06 | 广州普华灵动机器人技术有限公司 | tricycle traction bucket and tractor |
| CN107878131B (en) * | 2017-11-23 | 2023-10-13 | 广州普华灵动机器人技术有限公司 | Tricycle traction bucket and tractor |
| CN108725836A (en) * | 2018-06-05 | 2018-11-02 | 荆门畅享光年机电技术服务有限公司 | A kind of intelligent multimode conveying device of amphibious aircraft |
| CN108725836B (en) * | 2018-06-05 | 2019-11-29 | 陈威强 | A kind of intelligent multimode conveying device of amphibious aircraft |
| CN110282147A (en) * | 2019-06-05 | 2019-09-27 | 李恒 | A kind of device for no rod-type aircraft tractor wheel holding mechanism |
| CN110371271A (en) * | 2019-08-06 | 2019-10-25 | 乔紫妍 | A kind of ship is lauched process and speed controllable device for the first time |
| CN112722312A (en) * | 2021-02-09 | 2021-04-30 | 中国民航大学 | Emergency rescue vehicle and emergency rescue method for airplane substitute wheel |
| CN112722312B (en) * | 2021-02-09 | 2021-08-13 | 中国民航大学 | Emergency rescue vehicle and emergency rescue method for airplane substitute wheel |
| CN114987786A (en) * | 2022-07-02 | 2022-09-02 | 哈尔滨理工大学 | Clamping-lifting device for rodless tractor of shipboard aircraft |
| CN115991287A (en) * | 2023-02-23 | 2023-04-21 | 沈阳坦择实业有限公司 | Unmanned electric rodless tractor for airplane |
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Application publication date: 20140827 |