Traction device for hauling airplane

Abstract

The utility model provides a traction device for hauling an airplane, and belongs to the technical field of aviation logistics. Comprising a traction rod, a connecting ring is arranged at one end of the traction rod, a hanging tool is arranged at the other end of the traction rod, a trailer is hung on the connecting ring, a positioning shaft parallel to the radial direction of the traction rod is arranged on the outer wall of the traction rod, a rotating frame is rotatably arranged on the positioning shaft around the axis of the positioning shaft, and two wheels used for making contact with the ground are coaxially and rotatably arranged at one end of the rotating frame at intervals. And a driving piece for driving the rotating frame to rotate is arranged on the traction rod. The rotating frame can be driven by the driving piece to rotate around the positioning shaft, and due to the fact that the wheels abut against the ground, when the rotating frame rotates, the positioning shaft lifts the traction rod under the counter-acting force of the ground, and therefore the hanging tool can hook the connecting part on the airplane. And the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation logistics, in particular to a traction device for towing an airplane. Background Art

[0002] Before the aircraft takes off or after landing, it is necessary to use an aircraft towing device to tow the aircraft to a designated location or maintenance area for inspection. The towing device includes a towing rod, one end of which is fixedly provided with a connecting ring for connecting to a trailer; the other end of the towing rod is rotatably connected with a hanger for hooking the connecting part on the aircraft; wheels are installed on the outer wall of the towing rod.

[0003] The patent with announcement number CN213139173U discloses an aircraft electric traction rod, including a rod body, a front frame and a T frame. Slide grooves are opened on the left and right sides of the inner wall of the front frame, and the top of the inner wall of the slide groove is opened. The top of the inner wall of the top opening is fixed with an inner spring, and the bottom end of the inner spring is welded with a limit pin. Three rod bodies are welded to the rear of the inner wall of the front frame, and the outer wall of the rod body is sleeved with an external spring welded to the inner wall of the front frame. The T frame is located in front of the front frame, and sliders are welded on the left and right sides of the T frame, and three hollow sleeves are welded to the rear end of the T frame.

[0004] The electric towing rod of the aircraft can play a shock-absorbing role when the aircraft is towed, thereby improving the protection effect of the towing rod. However, the height of the electric towing rod is fixed, and the height of the connection parts of different models of aircraft is different, so when used to tow different models of aircraft, there is a problem of inconvenience in hooking. Utility Model Content

[0005] In view of the above problems, the utility model provides a traction device for towing an airplane.

[0006] In order to achieve the above-mentioned invention object, the technical solution adopted by the utility model is as follows:

[0007] A traction device for towing an aircraft is provided, comprising a traction rod, one end of which is provided with a connecting ring, and the other end of which is provided with a hanger, a trailer is hung on the connecting ring, a positioning shaft is provided on the outer wall of the traction rod parallel to its own radial direction, a rotating frame is provided on the positioning shaft to rotate around its own axis, one end of the rotating frame is provided with two wheels for contacting the ground coaxially and rotating at intervals, and a driving member for driving the rotating frame to rotate is provided on the traction rod.

[0008] Furthermore, the driving part includes a mounting tube and a screw rod, a screw nut is threadedly connected to the screw rod, the mounting tube is coaxially sleeved on the screw rod and fixedly connected to the screw nut, a mounting frame is provided on the traction rod, a mounting seat is vertically rotatably provided on the mounting frame, one end of the mounting tube is vertically rotatably provided at the end of the rotating frame away from the wheel, and the screw rod is rotatably provided on the mounting seat around the axis of the mounting tube.

[0009] Furthermore, a rotating part for driving the screw rod to rotate in one direction is provided on the mounting seat, and the rotating part includes a one-way bearing, and the one-way bearing includes an outer ring and an inner ring which are coaxially rotatably arranged. A plurality of mounting grooves are opened on the outer wall of the inner ring around its circumference, and the inner wall of the mounting groove is undulating to form a slope surface, and the slope surface includes a shallow slope section and a deep slope section. A roller is provided in the mounting groove for movably abutting against the inner wall of the outer ring. The outer ring is fixedly arranged on the mounting seat, and one end of the screw rod is coaxially fixed and penetrated in the inner ring. A clamping part is provided on the mounting seat for driving the roller to move to the deep slope section to loosen the outer ring.

[0010] Furthermore, the clamping member includes a latch seat, on which are provided a plurality of latch rods for being inserted into the mounting grooves. The latch rods are inserted into the mounting grooves and are located at the shallow slope section of the slope, with a gap being left between the latch rods and the rollers.

[0011] Furthermore, a rotating handle is provided on the latch seat.

[0012] Furthermore, a universal wheel for steering is provided on the traction rod, and a push rod is also connected to the traction rod.

[0013] The beneficial effects of the utility model are as follows: the connecting ring is first hung on the trailer, and the rotating frame can be driven to rotate around the positioning shaft by the driving member. Since the wheels are in contact with the ground, when the rotating frame rotates, the positioning shaft is subjected to the reaction force of the ground to lift the traction rod, so that the hanger can hook the connecting part on the aircraft. After the towing is completed, the rotating frame is rotated in the opposite direction by the driving member to drive the traction rod to descend, which has the advantage of easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a traction device for towing an aircraft according to an embodiment of the present application.

[0015] Figure 2 This is a schematic diagram of the structure of a driving component of a traction device for towing an aircraft according to an embodiment of the present application.

[0016] Figure 3 This is a schematic diagram of the structure of a rotating part of a traction device for towing an aircraft according to an embodiment of the present application.

[0017] Figure 4 This is a schematic diagram of the one-way rotation state of a one-way bearing of a traction device for towing an aircraft according to an embodiment of the present application.

[0018] Figure 5 This is a schematic diagram of the screw locking state of a traction device for towing an aircraft according to an embodiment of the present application.

[0019] Figure 6 This is a schematic diagram of a screw rod unlocking state of a traction device for towing an aircraft according to an embodiment of the present application.

[0020] Among them, 1. traction rod; 11. connecting ring; 12. hanger; 13. wheel; 2. positioning shaft; 3. rotating frame; 4. driving part; 41. mounting tube; 42. screw; 421. screw nut; 5. mounting frame; 51. mounting seat; 6. rotating part; 61. one-way bearing; 611. outer ring; 612. inner ring; 613. mounting groove; 614. shallow slope section; 615. deep slope section; 616. roller; 7. latch seat; 71. latch rod; 8. rotating handle; 9. universal wheel; 10. push rod. DETAILED DESCRIPTION

[0021] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] The present application embodiment discloses a traction device for towing an aircraft, referring to Figure 1 , Figure 2 and Figure 3 , comprising a traction rod 1, a connection ring 11 is welded at one end of the traction rod 1, and a hanger 12 is installed at the other end. A trailer (not shown in the figure) is hung on the connection ring 11, a positioning shaft 2 is welded on the outer wall of the traction rod 1 parallel to its own radial direction, a rotating frame 3 is arranged on the positioning shaft 2 to rotate around its own axis, and two wheels 13 for contacting the ground are arranged at one end of the rotating frame 3 to rotate coaxially and spaced, and a driving member 4 for driving the rotating frame 3 to rotate is installed on the traction rod 1.

[0023] In the embodiment of the present application, the connecting ring 11 is first hung on the trailer, and the rotating frame 3 can be driven to rotate around the positioning shaft 2 through the driving member 4. Since the wheels 13 are in contact with the ground, when the rotating frame 3 rotates, the wheels 13 are subjected to the reaction force of the ground to cause the positioning shaft 2 to lift the end of the traction rod 1 close to the hanger 12, so that the hanger 12 can hook the connecting part on the aircraft. After the towing is completed, the hanger 12 is untied, and the rotating frame 3 is rotated in the opposite direction by the driving member 4, so that the end of the traction rod 1 close to the hanger 12 can be driven to descend. This enables the traction device of the present application to cooperate with the towing of various types of aircraft, and has the advantage of being easy to operate.

[0024] Specifically, the middle part of the rotating frame 3 is rotatably connected to the positioning shaft 3, and the two ends of the rotating frame 3 are respectively located at the upper and lower sides of the traction rod 1. The driving member 4 includes a mounting tube 41 and a screw rod 42, and a screw nut 421 is threadedly connected to the screw rod 42. The mounting tube 41 is coaxially sleeved on the screw rod 42 and bolted to the screw nut 421. The traction rod 1 is bolted with a mounting frame 5, and a mounting seat 51 is vertically rotatably arranged on the mounting frame 5. One end of the mounting tube 41 is vertically rotatably arranged at the end of the rotating frame 3 away from the wheel 13, and the screw rod 42 is rotatably arranged on the mounting seat 51 around the axis of the mounting tube 41.

[0025] In the embodiment of the present application, rotating the screw 42 can drive the installation tube 41 to move axially along the screw 42. When the installation tube 41 slides and the total length of the installation tube 41 and the screw 42 increases, the rotating frame 3 rotates, so that the wheel 13 rotates around the positioning shaft 3, and the end of the traction rod 1 close to the hanger 12 can be lifted; when the installation tube 41 retracts to reduce the total length of the installation tube 41 and the screw 42, the rotating frame 3 rotates in the far reverse direction to lower the end of the traction rod 1 close to the hanger 12.

[0026] The installation cylinder 41 can slide along the axial direction by rotating the screw 42 to raise and lower the traction rod 1. After the height adjustment of the traction rod 1 is completed, the traction rod 1 can be towed. During the towing process, the installation cylinder 41 may be retracted together with the screw nut 421 by the force on the traction rod 1, causing the screw 42 to rotate in the opposite direction, and then the end of the traction rod 1 close to the hanger 12 is lowered during the towing process, which poses a safety hazard. Therefore, a rotating member 6 for driving the screw 42 to rotate in one direction is installed on the mounting seat 51. The rotating member 6 includes a one-way bearing 61, and the one-way bearing 61 includes an outer ring 611 and an inner ring 612 that are coaxially arranged. A plurality of installation grooves 613 are opened on the outer wall of the inner ring 612 around its own circumference. The inner wall of the installation groove 613 is undulating to form a slope surface, and the slope surface includes a shallow slope section 614 and a deep slope section 615. A roller 616 for movably contacting the inner wall of the outer ring 611 is installed in the installation groove 613. The mounting seat 51 is provided with a mounting groove 613, the outer ring 611 is inserted into the mounting groove 613 by interference fit, one end of the screw rod 42 is coaxially inserted into the inner ring 612 and fixedly connected by welding. The mounting seat 51 is provided with a clamping member for driving the roller 616 to move to the deep slope section 615 to loosen the outer ring 611.

[0027] Figure 4 The direction shown is the rotation direction of the one-way bearing 61 itself. Figure 4 When the screw rod 42 is rotated in the direction shown, the roller 616 is always located at the deep slope section 615 of the inner ring 612, and the roller 616 can rotate together with the inner ring 612. In this way, the mounting tube 41 can slide and the total length of the mounting tube 41 and the screw rod 42 can be increased, thereby driving the end of the traction rod 1 close to the hanger 12 to rise.

[0028] When the installation cylinder 41 is forced to retract, the screw rod 42 will press Figure 5 The inner ring 612 rotates along with the screw rod 42, but the roller 616 moves relative to the inner ring 612 toward the shallow slope 614, so that the outer wall of the roller 616 abuts against the inner wall of the outer ring 611, further preventing the inner ring 612 from rotating further. In this way, after the screw rod 42 rotates and adjusts the height of the traction rod 1, it is difficult to rotate due to the force of the installation cylinder 41, and reaches a locked state, which has the effect of reducing safety hazards.

[0029] When the aircraft is towed, the hanger 12 is untied, and the roller 616 can be driven to move toward the deep slope section 615 through the clamp to loosen the outer ring 611, so that the staff can press Figure 5 The screw rod 42 is rotated in the direction shown to lower the end of the traction rod 1 close to the hanger 12.

[0030] Specifically, the clamp includes a latch seat 7, on which a plurality of latch rods 71 ​​for being inserted into the mounting groove 613 are integrally fixed. The latch rods 71 ​​are inserted into the mounting groove 613 and are located at the shallow slope section 614 of the slope, with a gap between the latch rods 71 ​​and the roller 616.

[0031] In the embodiment of the present application, the latch rod 71 is inserted into the mounting groove 613 of the inner ring 612. Figure 4 Rotating the latch seat 7 in the direction shown can make the latch rod 71 located at the shallow slope section 614 of the mounting groove 613, and the roller 616 is also located at the deep slope section 615 at this time, so the inner ring 612 of the one-way bearing 61 can rotate normally, so that the screw rod 42 can drive the end of the traction rod 1 close to the hanger 12 to rise.

[0032] When the staff press Figure 6 When the latch seat 7 is rotated in the direction shown, the latch rod 71 moves toward the deep slope section 615 and pushes the roller 616 to the deep slope section 615, so that the roller 616 cannot abut against the outer ring 611, thereby unlocking the locking state of the screw rod 42.

[0033] In order to facilitate the staff to rotate the screw rod 42, a rotating handle 8 is welded on the latch seat 7.

[0034] After the aircraft is towed, the traction device is manually transported to the designated area for the convenience of the staff. A universal wheel 9 for steering is installed on the traction rod 1, and a push rod 10 is also welded on the traction rod 1.

[0035] The implementation principle of a traction device for towing an aircraft in an embodiment of the present application is as follows: first, the connecting ring 11 is hung on a trailer, and the rotating frame 3 can be driven to rotate around the positioning shaft 2 through the driving member 4. Since the wheels 13 are in contact with the ground, when the rotating frame 3 rotates, the positioning shaft 2 is lifted by the reaction force of the ground to lift the end of the traction rod 1 close to the hanger 12, so that the hanger 12 can hook the connecting part on the aircraft. After the towing is completed, the hanger 12 is untied, and the rotating frame 3 is rotated in the opposite direction by the driving member 4, so that the end of the traction rod 1 close to the hanger 12 can be driven to descend. This allows the traction device of the present application to cooperate with the towing of various types of aircraft, and has the advantage of being easy to operate.

[0036] It should be understood by those skilled in the art that, although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A traction device for towing an aircraft, comprising a traction rod (1), one end of the traction rod (1) is provided with a connecting ring (11), and the other end is provided with a hanger (12), a trailer is hung on the connecting ring (11), characterized in that: The invention also comprises a positioning shaft (2), the positioning shaft (2) being arranged on the outer wall of the traction rod (1) in a radial direction parallel to the traction rod (1), a rotating frame (3) being arranged on the positioning shaft (2) so as to rotate around its own axis, two wheels (13) for contacting the ground being arranged at one end of the rotating frame (3) so as to rotate coaxially and spaced apart, and a driving member (4) for driving the rotating frame (3) to rotate is arranged on the traction rod (1).

2. A traction device for towing an aircraft according to claim 1, characterized in that: The driving member (4) comprises a mounting tube (41) and a screw rod (42); a screw rod nut (421) is threadedly connected to the screw rod (42); the mounting tube (41) is coaxially sleeved on the screw rod (42) and fixedly connected to the screw rod nut (421); a mounting frame (5) is provided on the traction rod (1); a mounting seat (51) is vertically rotatably provided on the mounting frame (5); one end of the mounting tube (41) is vertically rotatably provided at an end of the rotating frame (3) away from the wheel (13); and the screw rod (42) is rotatably provided on the mounting seat (51) around the axis of the mounting tube (41).

3. A traction device for towing an aircraft according to claim 2, characterized in that: The mounting seat (51) is provided with a rotating member (6) for driving the screw rod (42) to rotate in one direction, the rotating member (6) comprising a one-way bearing (61), the one-way bearing (61) comprising an outer ring (611) and an inner ring (612) arranged to rotate coaxially, a plurality of mounting grooves (613) are provided on the outer wall of the inner ring (612) around its circumference, the inner wall of the mounting groove (613) is undulating to form a slope surface, and the slope surface comprises a shallow slope section (611). 14) and a deep slope section (615), a roller (616) for movably abutting against the inner wall of the outer ring (611) is provided in the mounting groove (613), the outer ring (611) is fixedly arranged on the mounting seat (51), one end of the screw rod (42) is coaxially fixedly arranged in the inner ring (612), and a clamping member for driving the roller (616) to move to the deep slope section (615) to loosen the outer ring (611) is provided on the mounting seat (51).

4. A traction device for towing an aircraft according to claim 3, characterized in that: The clamping member comprises a latch seat (7), on which a plurality of latch rods (71) for being inserted into the mounting groove (613) are provided. The latch rods (71) are inserted into the mounting groove (613) and are located at the shallow slope section (614) of the slope surface, and a gap is left between the latch rods (71) and the roller (616).

5. A traction device for towing an aircraft according to claim 4, characterized in that: The latch seat (7) is provided with a rotating handle (8).

6. A traction device for towing an aircraft according to any one of claims 1 to 5, characterized in that: The traction rod (1) is provided with a universal wheel (9) for steering, and the traction rod (1) is also connected to a push rod (10).

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