Modularized and quick-disassembly type light vehicle-mounted revolving platform of aircraft tractor

Abstract

The invention provides a modularized and quick-disassembly type light vehicle-mounted revolving platform of an aircraft tractor. The modularized and quick-disassembly type light vehicle-mounted revolving platform is composed of a revolving platform body, a case, supporting lugs, a supporting frame and a turntable bearing. The sub-components are in bolted connection with the rotary platform main body, so that the connection strength is ensured, and meanwhile, quick disassembly and maintenance can be carried out. And meanwhile, the rotary platform adopts a main body casting and partition welding mode, and light-weight design is carried out aiming at cast parts. According to the modularized and quick-disassembly type light vehicle-mounted rotary platform, various devices can be borne, the modularized and quick-disassembly type light vehicle-mounted rotary platform has the advantages of being high in space utilization rate, wide in adaptability, simple in layout and the like, sub-components can be quickly disassembled, maintained and replaced, and powerful support is provided for development of a new generation of vehicle-mounted rotary platform.

Description

Technical Field

[0001] The invention relates to the technical field of aviation ground special equipment, in particular to a modular, quick-detachable, lightweight vehicle-mounted rotary platform. Background Art

[0002] In order to promote a new departure towing mode, that is, by introducing the power integration with departure taxiing, centralized control and high-speed towing movement, the departure mode relies on the power of the towing vehicle to directly complete the efficient transfer from the berth to the take-off runway. Therefore, the high-speed and heavy-load typical characteristics of the aircraft towing system in this mode have promoted the development of towbarless towing vehicles and their on-board rotary platforms in terms of safety and robustness.

[0003] The barless tractor is a tractor that connects the front landing gear of the aircraft to the wheel holding system of the tractor, fixes the freedom of the front landing gear of the aircraft, and applies an upward load to the front landing gear of the aircraft to ensure that the traction work is carried out when the landing gear leaves the ground. The advantages of small size, maneuverability and high efficiency of barless aircraft tractors have attracted more and more attention, and provide a new idea for ground aircraft traction work. Due to the uneven pavement caused by the repeated effects of construction, environment, weather, materials, aircraft take-off and landing loads, and unsafe operation methods, China's airports have caused severe working conditions, resulting in ground traction accidents. Therefore, in order to improve the safety, robustness and efficiency of traction work, the proposal of a rotary platform is a low-tech and high-feasibility solution to strengthen fleet management and improve traction efficiency in the development process of barless aircraft tractors.

[0004] As the aviation ground special vehicle carrying equipment continues to tend towards integrated development, the special vehicle revolving platform is facing the trend of lightweight, modular and universal development. Although the existing large steel structure revolving platform has good plasticity and easy processing and characteristics, its heavy weight, poor adaptability, low strength and poor maintainability are particularly obvious in the application of special vehicle revolving platforms, resulting in the impact of vehicle load ratio. The revolving platform made of high-strength aluminum alloy integrated casting has become a feasible alternative with its significant advantages such as light weight, high strength and good adaptability. However, the existing integrated casting revolving platform cannot meet the needs of rapid disassembly and universalization, and is restricted by the fluidity of casting metal, which limits its application scope in special vehicle revolving platforms. In order to adapt to the requirements of different carrying equipment, it is urgent to develop a new type of special vehicle revolving platform that is universal, quick to disassemble and highly adaptable to meet the growing demand for special vehicles. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a modular, quick-detachable lightweight vehicle-mounted revolving platform for aircraft tractors. Based on the need for special vehicle revolving platforms to carry a variety of equipment, the chassis, lugs, and support frames are placed at the front, middle, and rear of the vehicle-mounted revolving platform body, respectively, and connected by bolts. Each module can be partitioned and designed for quick disassembly and maintenance. At the same time, lightweight design is carried out on the premise of meeting the structural rigidity, and the main body casting and partition welding mode are selected. Compared with traditional steel structure revolving platforms and cast revolving platforms, it has the advantages of high specific strength, strong versatility, and good maintainability.

[0006] The present invention is achieved through the following technical solutions:

[0007] The present invention provides a modular, quick-detachable lightweight vehicle-mounted revolving platform for aircraft tractors, comprising a vehicle-mounted revolving platform layout; the vehicle-mounted revolving platform layout design is to respectively install a chassis, a support lug, and a support frame at the front, middle, and rear of a revolving platform body through bolt connections, and to be symmetrically distributed left and right, and a turntable bearing is installed at the bottom of the revolving platform body through bolts.

[0008] Each module of the vehicle-mounted revolving platform is connected to the revolving platform body by bolts, which can not only design the size of each module and related interfaces according to the special vehicle carrying equipment, but also achieve the purpose of rapid disassembly and maintenance.

[0009] The main body of the slewing platform is the main load-bearing part of the vehicle-mounted slewing platform, which is cast from aluminum alloy as a whole. The middle part is circular, and the seat ring bearing surface is processed inside, and the weight is reduced in a "net" format. The lug is a load-bearing part that carries the rotating functional parts, which is cast from aluminum alloy as a whole, and the weight is reduced in a "mouth" format.

[0009] The chassis is a structural component that carries the electrical equipment installed on special vehicles, and is welded from high-strength aluminum alloy. The support frame is a structural component that extends and supports the special vehicle installation, and is welded from high-strength aluminum alloy. The turntable bearing is a large-sized internal gear, which is meshed and driven by the corresponding transmission system of the special vehicle, so that the vehicle-mounted revolving platform can rotate 360°.

[0010] The beneficial effects of the present invention are as follows: ① A layout of a vehicle-mounted rotary platform is proposed, in which a chassis, a support lug, and a support frame are placed at the front, middle, and rear of the vehicle-mounted rotary platform body, respectively, and a turntable bearing is placed at the bottom, which has the characteristics of compact structure and high space utilization. ② Each module is connected to the rotary platform body by bolts, and each module can be designed according to the specific load-bearing equipment, which has the advantages of high degree of commonality and good maintainability; ③ The main body casting and partition welding mode is adopted, that is, the poor performance of the casting due to the fluidity of the casting metal is avoided, and the wide applicability of the welded parts is utilized to meet the lightweight design requirements of the vehicle-mounted rotary platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0012] Figure 2 is a top view of the casting of the present invention;

[0013] Figure 3 It is a schematic diagram of the chassis structure of the present invention;

[0014] In the figure: 1-left chassis, 2-rotating body, 3-left support ear, 4-left support frame, 5-right support frame, 6-right support ear, 7-turntable bearing, 8-right chassis. DETAILED DESCRIPTION

[0015] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0016] Embodiment 1, as Figure 1 A modular, quick-detachable aircraft tractor lightweight vehicle-mounted slewing platform is shown. The casting slewing platform body and the lugs are designed according to the standard GB / T 9438-2013 "Aluminum Alloy Castings".

[0017] Example 2, based on Example 1, describes a modular, quick-detachable aircraft tractor lightweight vehicle-mounted rotating platform. The vehicle-mounted rotating platform layout is as follows: Figure 1 The chassis, lugs and support frame are bolted and installed at the front, middle and rear of the slewing platform body, and are symmetrically distributed. The turntable bearing is bolted to the bottom of the slewing platform body. The chassis and lugs carry the electrical equipment and slewing components installed on the special vehicle. The support frame is used as a structural part to extend the support of the special vehicle body.

[0018] In Example 3, based on Example 1 and Example 2, all parts of the rotary platform are connected by bolts, and different parts can be disassembled, repaired and replaced according to actual conditions. This can achieve rapid disassembly and maintenance, effectively reduce maintenance costs and improve equipment usability.

[0019] Example 4, based on Example 1 and Example 2, adopts the main body casting and partition welding mode, and based on this model, each module is lightweight designed. The main body of the rotary platform is the main load-bearing part of the entire rotary platform, which is integrally cast, and weight-reducing holes are added around it. The middle part is weight-reduced in a "net" format, as shown in the following example. Figure 2 The partition modules of the rotary platform can be designed according to the actual load, taking the lugs and chassis as an example. The lugs are integrally cast and symmetrically distributed in the middle of the rotary platform body. They are weight-reduced in a "mouth" format and two rotary interfaces are reserved. Figure 2The chassis is used to carry the corresponding electrical equipment. The whole is welded by plates. It is designed as a double-door combined electrical box. Figure 3 shown.

[0020] Example 5, based on Example 2, the revolving platform can be rotated 360° by meshing the large-sized internal gear installed at the bottom of the revolving platform with the corresponding transmission system of the special vehicle.

Claims

1. A modular, quick-detachable lightweight vehicle-mounted slewing platform for an aircraft tractor mainly comprises a slewing platform body (2), a left chassis (1), a right chassis (8), a left support frame (4), a right support frame (5), a left support lug (3), a right support lug (6), and a turntable bearing (7). The characteristics are: The chassis, the support lugs and the support frame are connected by bolts respectively and installed at the front, middle and rear of the rotating platform body (2) and are symmetrically distributed left and right; the turntable bearing (7) is installed at the bottom of the rotating platform body (2) by bolts.

2. A modular, quick-detachable aircraft tractor lightweight vehicle-mounted rotating platform as claimed in claim 1, characterized in that: Each module is connected to the rotary platform body (2) by bolts, which not only allows the size of each module and related interfaces to be specifically designed according to the special vehicle carrying equipment, but also allows for rapid disassembly and maintenance.

3. A modular, quick-detachable aircraft tractor lightweight vehicle-mounted rotating platform as claimed in claim 1, characterized in that: The main body (2) of the slewing platform is the main load-bearing member of the slewing platform. It is made of aluminum alloy casting as a whole. The middle part is circular, the wheel bearing installation surface is processed inside, and the weight is reduced in a "net" format.

4. A modular, quick-detachable aircraft tractor lightweight vehicle-mounted rotating platform as claimed in claim 1, characterized in that: The chassis is a structural component for carrying electrical equipment installed on a special vehicle. It is welded from a high-strength aluminum alloy and is divided into a left chassis (1) and a right chassis (8), which are symmetrically distributed on the front of the rotary platform body (2).

5. A modular, quick-detachable aircraft tractor lightweight vehicle-mounted rotating platform as claimed in claim 1, characterized in that: The lugs are load-bearing parts for carrying components with slewing functions. The lugs are cast from aluminum alloy as a whole and are divided into a left lug (3) and a right lug (6). They are symmetrically distributed in the middle of the slewing platform body (2) and are in a "mouth"-shaped format to reduce weight.

6. A modular, quick-detachable aircraft tractor lightweight vehicle-mounted rotating platform as claimed in claim 1, characterized in that: The support frame is a structural member for extending and supporting the upper body of the special vehicle. The support frame is welded from a high-strength aluminum alloy and is divided into a left support member (4) and a right support member (5), which are symmetrically distributed at the rear of the main body of the rotary platform.

7. A modular, quick-detachable aircraft tractor lightweight vehicle-mounted rotating platform as claimed in claim 1, characterized in that: The turntable bearing (7) is a large-sized internal gear, which is meshed and driven by a corresponding transmission system of the special vehicle, so that the turntable can rotate 360 ​​degrees.

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