CN2147186Y - Front wheel steering device for drawed or pushed plane - Google Patents
Front wheel steering device for drawed or pushed plane Download PDFInfo
- Publication number
- CN2147186Y CN2147186Y CN 92244201 CN92244201U CN2147186Y CN 2147186 Y CN2147186 Y CN 2147186Y CN 92244201 CN92244201 CN 92244201 CN 92244201 U CN92244201 U CN 92244201U CN 2147186 Y CN2147186 Y CN 2147186Y
- Authority
- CN
- China
- Prior art keywords
- towing pin
- wheel
- guide rail
- travel guide
- aircraft
- 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
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- Guiding Agricultural Machines (AREA)
Abstract
The utility model belongs to the aviation ground handling equipment, providing a device which manipulates the deflection of the aircraft front wheel when an aircraft tractor pulls or pushes an aircraft on the ground, and the fixed traction pins of the existing aircraft tractors are replaced with compulsively laterally moving traction pins. The lateral movement of the traction pins makes the front wheel and the tow bar of the aircraft which is connected with the aircraft generate deflection. Therefore, the aircraft that is trailed can move more precisely and agilely. The device can be realized by using various power transmission technologies and has the advantages of simple structure, operational safety, low cost, etc.
Description
The utility model belongs to the aviation ground handling equipment.
Aircraft towing is when ground traction or pushing tow aircraft, and the wheel that need make the aircraft nose-gear that connects with it requires left and right sides deflection according to the aircraft running route.The draw gear of existing aircraft towing all is a towing pin that is fixed on the tractor truck longitudinal axis symmetrical plane, and handles the front-wheel pivot angle that is pulled aircraft with deflection or the mode that is offset whole tractor truck.When dispatching aircraft in comparatively narrow place, particularly during the pushing tow aircraft, often have to install four-wheel steering on aircraft towing, the crab line such as turns at unconventional steering hardware, to improve the manoevreability of aircraft towing, this must increase the complexity and the manufacturing cost of the structure of tractor truck.
The purpose of this utility model provides a kind of inflector assembly of operating aircraft front-wheel simple in structure.
The utility model is by the towing pin on tractor truck frame, frame front end or the rear end, an end and towing pin bonded assembly draw bar, form with the aircraft nose wheel etc. in the draw bar other end bonded assembly undercarriage, alighting gear.It is characterized in that between tractor truck frame and towing pin, being provided with the transverse moving device of towing pin.The cross motion of towing pin makes pivotally attached draw bar deflection with it, drives the deflection by a relatively large margin of undercarriage and aircraft nose wheel thereof do.
Simple in structure, the low cost of manufacture of this aircraft nose wheel inflector assembly, under the situation of tractor truck invariant position, make the draw bar left and right sides deflection that connects with the aircraft nose-gear, thereby undercarriage and aircraft nose wheel are obtained to satisfying the required angle of inclination of aircraft moving direction.
The utility model is described in further detail by embodiment below in conjunction with accompanying drawing.
Accompanying drawing 1 is a birds-eye view of the present utility model
Accompanying drawing 2 is used another technical scheme of towing pin transverse moving device of the utility model.
Tractor truck frame (1) front end or rear end are provided with the transverse moving device (see figure 1) of towing pin (2).This device has a double acting hydraulic actuating cylinder (3) and control setup (8) thereof.The piston rod of hydraulic actuating cylinder (3), the one end is a piston, it is hinged that the other end stretches out hydraulic cylinder one end outer and towing pin (2), tractor truck frame (1) is provided with side travel guide rail (4), towing pin (2) can move laterally along guide rail (4), towing pin (2) connects with aircraft draw bar (6), and the other end of draw bar (6) and aircraft nose-gear (5) are hinged, and aircraft nose wheel (7) is contained in the nose-gear (5).
When tractor truck traction or pushing tow aircraft, towing pin (2) is connected with aircraft draw bar (6), when needs make aircraft nose wheel (7) according to the aircraft running route require the left and right sides deflection time, the control setup (8) of operating hydraulically operated cylinder (3), the piston rod of hydraulic actuating cylinder (3) is advanced or retreat, drive towing pin (2) and on side travel guide rail (4), move laterally, thereby make draw bar (6) beat.And then aircraft nose-gear (5) and aircraft nose wheel (7) are obtained to satisfying the required angle of deflection of aircraft moving direction.
The transverse moving device of towing pin (2) can adopt other hydraulic pressure, compressed-air controlled, pattern electric power or pure machinery.Figure 2 shows that the technical scheme that fluid motor-driven gear one rack drives towing pin moves along side travel guide rail (4).This transverse moving device by HM Hydraulic Motor (9), be fixed on gear (10) on the hydraulic motor output shaft, tooth bar (11), side travel guide rail (4), the maneuver control device (8) of HM Hydraulic Motor and form with gear mesh.Towing pin (2) is captiveed joint with tooth bar.By the forward or reverse of the operating hydraulically operated motor of maneuver control device (8) (9), thereby make gear (10) rotating, drive towing pin (2) that tooth bar (11) reaches and it is fixing and move laterally along side travel guide rail (4).
The transverse moving device of towing pin (2) also can be made up of with its ingear screw rod and side travel guide rail (4) the nut of sliding nut or band circulating steel ball.When screw rod rotated, nut just moved, and moved laterally along side travel guide rail (4) thereby drive with its fixing towing pin (2).
The transverse moving device of towing pin (2) also can be to make towing pin (2) around a certain spot wobble of tractor truck frame rear end.This installs by the bearing pin on the tractor truck frame (1) and can form around the towing pin (2) of bearing pin swing.When towing pin (2) by power when bearing pin is swung, drive connected draw bar (6) deflection, thereby drive aircraft nose wheel (7) deflection in undercarriage (5) and the alighting gear.
More than side travel guide rail (4) in said towing pin (2) transverse moving device be linear, also can be circular arc or other suitable curve.
More than said towing pin (2) with can adopt bolt-type, coupling type and other mechanical attachment mode connecting of aircraft draw bar (6).Can install upright position regulating mechanism, operating handle, automatic hanging mechanisms and lockout mechanism on the towing pin.
More than said hydraulic actuating cylinder maneuver control device (8) can be arranged in the operator's compartment of tractor truck or other position on the tractor truck, also can outside car, carry out remote control by wired or wireless mode.
Claims (10)
1, a kind of device of operating aircraft front-wheel deflection when ground traction or pushing tow aircraft, it is by the towing pin (2) on tractor truck frame (1), frame (1) front end or the rear end, an end and towing pin bonded assembly draw bar (6), form with the aircraft nose wheel (7) etc. in the draw bar other end bonded assembly undercarriage (5), alighting gear, it is characterized in that, the transverse moving device of towing pin is set between tractor truck frame (1) and the towing pin (2).
2, according to the device of the said operating aircraft front-wheel of claim 1 deflection, it is characterized in that, said towing pin transverse moving device is made up of the maneuver control device (8) of hydraulic actuating cylinder (3), side travel guide rail (4), hydraulic actuating cylinder, piston rod one end of hydraulic actuating cylinder (3) is that piston is in hydraulic cylinder, it is hinged that the other end stretches out hydraulic cylinder one end outer and towing pin (2), and towing pin (2) moves along side travel guide rail (4).
3, according to the device of the said operating aircraft front-wheel of claim 1 deflection, it is characterized in that, said towing pin transverse moving device by HM Hydraulic Motor (9), be fixed on gear (10) on the hydraulic motor output shaft, form with tooth bar (11), side travel guide rail (4), the HM Hydraulic Motor maneuver control device (8) of gear mesh, towing pin (2) is captiveed joint with tooth bar (11), and towing pin (2) moves laterally along side travel guide rail (4).
4, according to the device of the said operating aircraft front-wheel of claim 1 deflection, it is characterized in that, said towing pin transverse moving device is by nut, form with nut ingear screw rod and side travel guide rail, and towing pin and nut are fixed, and can move along the side travel guide rail.
According to the device of the said operating aircraft front-wheel of claim 1 deflection, it is characterized in that 5, said towing pin transverse moving device is by the bearing pin on the tractor truck frame, with bearing pin pivotally attached towing pin and the engine installation of towing pin swing is formed.
According to the device of claim 1,2,3 or 4 said operating aircraft front-wheel deflections, it is characterized in that 6, said side travel guide rail (4) is linear.
According to the device of claim 1,2 or 3 said operating aircraft front-wheel deflections, it is characterized in that 7, said side travel guide rail (4) is a circular arc type.
According to the device of claim 1,2 or 3 said operating aircraft front-wheel deflections, it is characterized in that 8, said side travel guide rail (4) is a shaped form.
According to the device of claim 1,2,3,4 or 5 said operating aircraft front-wheel deflections, it is characterized in that 9, said towing pin (2) is a bolt-type with the connecting mode of draw bar (6).
According to the device of claim 1,2,3,4 or 5 said operating aircraft front-wheel deflections, it is characterized in that 10, said towing pin (2) is a coupling type with the connecting mode of draw bar (6).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 92244201 CN2147186Y (en) | 1992-12-21 | 1992-12-21 | Front wheel steering device for drawed or pushed plane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 92244201 CN2147186Y (en) | 1992-12-21 | 1992-12-21 | Front wheel steering device for drawed or pushed plane |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2147186Y true CN2147186Y (en) | 1993-11-24 |
Family
ID=33783526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 92244201 Expired - Lifetime CN2147186Y (en) | 1992-12-21 | 1992-12-21 | Front wheel steering device for drawed or pushed plane |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2147186Y (en) |
-
1992
- 1992-12-21 CN CN 92244201 patent/CN2147186Y/en not_active Expired - Lifetime
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |