A mechanized cargo bridge and its erection method

Through the mechanized cargo bridge controlled by hydraulic and electrical control, the problem of low manpower assembly efficiency of existing cargo bridges is solved, and the height adjustable and efficient cargo bridge installation is achieved to meet the loading and unloading needs of air transportation.

CN111332831BActive Publication Date: 2025-01-03CHINA HARZONE IND CORP
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Patent Information

Application Number
CN201911276773.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2019-12-12
Publication Date
2025-01-03
Estimated Expiration
2039-12-12

AI Technical Summary

Technical Problem

The existing cargo bridge structure requires a lot of manpower assembled, which has high labor intensity, long operating time and low efficiency, making it difficult to meet the needs of air transportation loading and unloading guarantees.

Method used

A mechanized cargo bridge is designed, adopting hydraulic and electrically controlled erection and adjustment actions, including legs, universal walking wheels, bridge joint lifting mechanism and folding/display drive mechanism, which can adjust the height and angle by itself to adapt to cargo holds of different transport aircraft high.

Benefits of technology

It greatly reduces the intensity and time of manpower, improves the operating efficiency, can meet the loading and unloading needs of self-equipped and non-self-equipped equipment, and adapts to the cargo hold heights of different transport aircraft.

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Abstract

The invention discloses a mechanized cargo bridge and an erection method thereof, comprising: an outrigger A, an outrigger B, a universal traveling wheel, a wheeled chassis, a bridge section lifting mechanism and a vehicle body bridge section arranged on the wheeled chassis, a rear bridge section, a front bridge section, a rear bridge section folding / expanding driving mechanism and a front bridge section folding / expanding driving mechanism arranged on the vehicle body bridge section; the height of the mechanized cargo bridge is adjustable to meet the height requirements of cargo compartments of different transport aircraft; the mechanized cargo bridge and the erection method thereof have a high degree of mechanization, low labor intensity, short operation time and high efficiency; and can meet the requirements for loading and unloading of self-propelled equipment as well as the requirements for loading and unloading of non-self-propelled equipment.
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Description

Technical Field

[0001] The invention relates to a cargo bridge, and in particular to a mechanized cargo bridge and an erection method thereof. Background Art

[0002] At present, my country's research on transport aircraft loading and unloading cargo bridges is relatively lacking. The cargo bridges in the existing technology mainly use assembled structures, which require a large amount of manpower for assembly operations, have high labor intensity, long operation time and low efficiency.

[0003] Therefore, in view of my country's aviation transport loading and unloading security needs, it is very necessary to develop mechanized cargo bridges for use with large transport aircraft. Summary of the invention

[0004] In view of this, the present invention provides a mechanized cargo bridge that can meet the needs of self-propelled and non-self-propelled equipment getting on and off transport aircraft. The mechanized cargo bridge is height-adjustable and can adapt to the heights of cargo compartments of different transport aircraft. The erection and adjustment actions of the cargo bridge are all hydraulically and electrically controlled, which saves a lot of manpower, greatly reduces the labor intensity of operators, shortens the operation time, and increases efficiency.

[0005] The technical solution of the present invention is: a mechanized cargo bridge, comprising: outriggers A, outriggers B, universal running wheels, a wheeled chassis, a bridge section lifting mechanism and a vehicle body bridge section arranged on the wheeled chassis, a rear bridge section arranged on the vehicle body bridge section, a front bridge section, a rear bridge section folding / expanding driving mechanism and a front bridge section folding / expanding driving mechanism;

[0006] The front end of the vehicle body bridge section is hinged to the front end of the wheeled chassis, and the rear end of the vehicle body bridge section is connected to the rear end of the wheeled chassis through a bridge section lifting mechanism, and the bridge section lifting mechanism is used to drive the vehicle body bridge section to rotate around the hinge axis between it and the wheeled chassis;

[0007] One end of the front bridge section is hinged to the front end of the vehicle body bridge section, and the other end is provided with a support leg A; the front bridge section can rotate around the hinge axis with the vehicle body bridge section under the drive of the front bridge section folding / expanding driving mechanism to realize the folding or unfolding of the front bridge section;

[0008] One end of the tail bridge section is hinged to the rear end of the vehicle body bridge section, and the other end is provided with a universal walking wheel and a support leg B; the tail bridge section can rotate around the hinge axis with the vehicle body bridge section under the drive of the tail bridge section folding / expanding drive mechanism to realize the folding or unfolding of the tail bridge section.

[0009] Preferably, the front bridge section folding / expanding driving mechanism is a double-cylinder bridge frame A, and the rear bridge section folding / expanding driving mechanism is a double-cylinder bridge frame B. Both the double-cylinder bridge frame A and the double-cylinder bridge frame B include: a bridge frame and two hydraulic cylinders;

[0010] The cylinder ends of the two hydraulic cylinders of the double-cylinder bridge frame A are respectively connected to the upper front end of the vehicle body bridge section and one end of the front end bridge section, and the piston ends of the two hydraulic cylinders are hinged at two opposite end points on the bridge frame. The front end of the vehicle body bridge section and the end of the front end bridge section connected to the front end of the vehicle body bridge section are also respectively hinged to the bridge frame;

[0011] The cylinder bodies of the two hydraulic cylinders of the double-cylinder deployment bridge frame B are respectively connected to the upper part of the rear end of the vehicle body bridge section and one end of the tail bridge section, and the piston ends of the two hydraulic cylinders are hinged at two opposite end points on the deployment bridge frame. The rear end of the vehicle body bridge section and the end of the tail bridge section connected to the rear end of the vehicle body bridge section are also respectively hinged to the deployment bridge frame of the double-cylinder deployment bridge frame B.

[0012] Preferably, a slide groove A is provided at the rear end of the wheeled chassis; a slide groove B is provided at the rear end of the vehicle body bridge section; the bridge section lifting mechanism includes: a hydraulic cylinder and a lifting frame, the lifting frame includes: two support rods hinged to each other, the cylinder end of the hydraulic cylinder of the bridge section lifting mechanism is fixedly connected to the wheeled chassis, the piston end is connected to one end of a support rod of the lifting frame and slidingly cooperates with the slide groove A, one end of the other support rod of the lifting frame is fixed on the wheeled chassis, and the hinge of the two support rods on the lifting frame is slidingly cooperated with the slide groove B at the rear end of the vehicle body bridge section through a pulley.

[0013] Preferably, the front end bridge section and the rear end bridge section each include more than two bridge sections, and the adjacent bridge sections of the front end bridge section are hinged to enable folding or unfolding of the adjacent bridge sections, and the adjacent bridge sections of the rear end bridge section are hinged to enable folding or unfolding of the adjacent bridge sections.

[0014] Preferably, both the supporting legs A and B are retractable structures.

[0015] A method for erecting a mechanized cargo bridge, for erecting a cargo bridge for self-propelled equipment loading and unloading, in the transport state, the front bridge section and the rear bridge section are folded and stored above the bridge section of the vehicle body, and the bridge section lifting mechanism is in the lowest position; the wheeled chassis vehicle drives to a set position behind the cargo compartment of a transport aircraft, and parks outside the cargo compartment of the transport aircraft, and under the action of the rear bridge section folding / expanding driving mechanism and the front bridge section folding / expanding driving mechanism, the front bridge section and the rear bridge section are respectively unfolded, and at the same time, the universal running wheels on the rear bridge section are extended to touch the ground as the running wheels of the rear bridge section, and then the wheeled chassis vehicle is driven into the rear of the cargo compartment of the transport aircraft, so that the front bridge section on it is docked with the cargo compartment of the transport aircraft, the support legs A on the front bridge section are extended to touch the ground for support, and then the universal running wheels on the rear bridge section are retracted, so that the rear end of the rear bridge section touches the ground for support, and the erection of the cargo bridge for self-propelled equipment loading and unloading is completed;

[0016] For the erection of a non-self-propelled equipment loading and unloading cargo bridge, in the transport state, the front bridge section and the rear bridge section are folded and stored above the vehicle body bridge section, and the bridge section jacking mechanism is in the lowest position; the wheeled chassis vehicle drives to the set position behind the cargo hold of the transport aircraft, and parks outside the cargo hold of the transport aircraft, and under the action of the rear bridge section folding / expanding drive mechanism and the front bridge section folding / expanding drive mechanism, the front bridge section and the rear bridge section are respectively unfolded, and the universal running wheels on the rear bridge section are extended at the same time to touch the ground as the running wheels of the rear bridge section, and then the wheeled chassis vehicle is driven Enter the rear end of the cargo hold of the transport plane and dock the front bridge section on it with the cargo hold of the transport plane, extend the support leg A on the front bridge section and make it touch the ground for support, then extend the support leg B on the rear bridge section and make it touch the ground for support, the bridge section jacking mechanism lifts the vehicle body bridge section to adjust the bridge deck height of the vehicle body bridge section, then retract the universal running wheel on the rear bridge section, finally, by adjusting the extended length of the support legs A and the support legs B and adjusting the bridge deck level of the vehicle body bridge section through the bridge section jacking mechanism, the cargo bridge deck is level, and the erection of the cargo bridge for loading and unloading non-self-propelled equipment is completed.

[0017] Preferably, the erection height and angle of the front bridge section are adjusted by adjusting the extension length of the support leg A; and the erection height and angle of the rear bridge section are adjusted by adjusting the extension length of the support leg B.

[0018] Beneficial effects:

[0019] (1) Compared with the prior art, the present invention has the following advantages: the height of the mechanized cargo bridge is adjustable to meet the height requirements of cargo compartments of different transport aircraft; the mechanization degree is high, the labor intensity is low, the operation time is short, and the efficiency is high; it can meet the requirements of loading and unloading of both self-propelled equipment and non-self-propelled equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall equipment structure of the mechanized cargo bridge transportation state of the present invention.

[0021] Figure 2 This is a state diagram of the mechanized cargo bridge erection process of the present invention.

[0022] Figure 3 This is a diagram of the loading and unloading status of the mechanized cargo bridge self-propelled equipment of the present invention.

[0023] Figure 4 This is a diagram showing the loading and unloading status of the non-self-propelled equipment of the mechanized cargo bridge of the present invention.

[0024] Among them, 1-wheeled chassis, 2-bridge section lifting mechanism, 3-vehicle bridge section, 4-double-cylinder bridge frame A, 5-front bridge section, 6-outrigger A, 7-rear bridge section, 8-universal walking wheel, 9-double-cylinder bridge frame B, 10-outrigger B. DETAILED DESCRIPTION

[0025] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0026] The present embodiment provides a mechanized cargo bridge that can meet the needs of self-propelled and non-self-propelled equipment getting on and off transport aircraft. The mechanized cargo bridge is height-adjustable and can adapt to the heights of cargo compartments of different transport aircraft. The erection and adjustment actions of the cargo bridge are all hydraulically and electrically controlled, which saves a lot of manpower, greatly reduces the labor intensity of operators, shortens the operation time, and increases efficiency.

[0027] like Figure 1 As shown, the mechanized cargo bridge comprises: a double-cylinder bridge frame A4, a double-cylinder bridge frame B9, outriggers A6, outriggers B10, universal walking wheels 8, a wheeled chassis 1, a bridge section lifting mechanism 2 and a vehicle body bridge section 3 arranged on the wheeled chassis 1, a rear bridge section 7 and a front bridge section 5 arranged on the vehicle body bridge section 3;

[0028] The overall connection relationship of the mechanized cargo bridge is as follows: an articulated ear plate is provided at the upper front end of the wheeled chassis 1, and a support and a slide A are provided at the rear end; an articulated ear plate is provided at the front end of the vehicle body bridge section 3, and a slide B is provided at the rear end; the vehicle body bridge section 3 is articulated with the wheeled chassis 1 by the articulated ear plate thereon cooperating with the articulated ear plate on the wheeled chassis 1, and the direction of the articulated axis is horizontally parallel to the wheeled chassis 1, so that the vehicle body bridge section 3 has the freedom to rotate around the articulated axis relative to the wheeled chassis 1; the double-cylinder bridge frame A4 and the double-cylinder bridge frame B9 both include: two hydraulic cylinders and a bridge frame, and the double-cylinder bridge frame A4 is provided with four hinge points that can form a quadrilateral, which are respectively recorded as hinge point A, hinge point B, hinge point C and hinge point D, among which let the left The hinge point at the top is hinge point A, and the four hinge points are hinge point A, hinge point B, hinge point C and hinge point D in the counterclockwise direction. The cylinder ends of the two hydraulic cylinders of the double-cylinder deployment bridge frame A4 are respectively connected to the upper front end of the vehicle body bridge section 3 and one end of the front end bridge section 5, and the piston ends of the two hydraulic cylinders are hinged at hinge point A and hinge point B on the deployment bridge frame (the hinge axes are both horizontally parallel to the wheeled chassis 1), and the front end of the vehicle body bridge section 3 and the end of the front end bridge section 5 connected to the front end of the vehicle body bridge section 3 are also respectively hinged to hinge point C and hinge point D on the deployment bridge frame (the hinge axes are both horizontally parallel to the wheeled chassis 1), so that the front end bridge section 5 has the freedom to rotate around its hinge axis relative to the vehicle body bridge section 3, so as to realize the deployment or folding of the front end bridge section 5 (when deploying or folding). The movement directions of the two hydraulic cylinders are opposite); the double-cylinder bridge frame B9 is provided with four hinge points that can form a quadrilateral, which are respectively recorded as hinge point A', hinge point B', hinge point C' and hinge point D', among which the hinge point on the upper right is hinge point A', and the four hinge points are hinge point A', hinge point B', hinge point C' and hinge point D' in the clockwise direction. The cylinder bodies of the two hydraulic cylinders of the double-cylinder bridge frame B9 are respectively connected to the upper part of the rear end of the vehicle body bridge section 3 and one end of the tail bridge section 7, and the piston ends of the two hydraulic cylinders are hinged at the hinge point A' and hinge point B' on the bridge frame (the hinge axes are both horizontally parallel to the wheeled chassis 1), and the rear end of the vehicle body bridge section 3 and the end of the tail bridge section 7 connected to the rear end of the vehicle body bridge section 3 are also respectively connected to the double-cylinder bridge frame. The hinge point C' and the hinge point D' on the unfolding bridge frame of the frame B9 are hinged to each other (the hinge axes are both horizontally parallel to the wheeled chassis 1), so that the rear bridge section 7 has the freedom to rotate around its hinge axis relative to the body bridge section 3, thereby realizing the unfolding or folding of the rear bridge section 7 (the movement directions of the two hydraulic cylinders are opposite when unfolding or folding); the other end of the front bridge section 5 is provided with a hydraulically retractable support leg A6, which is used to support the front bridge section 5 or adjust the height of the front bridge section 5 when the support leg A6 is extended and unfolded; the other end of the rear bridge section 7 is provided with a universal walking wheel 8 and a hydraulically retractable support leg B10, which is used to support the rear bridge section 7 or adjust the height of the rear bridge section 7 when the support leg B10 is extended and unfolded, and the universal walking wheel 8 is used to drive the rear bridge section 7 to move under the drive of the wheeled chassis 1.

[0029] The bridge section lifting mechanism 2 is used to provide power for the vehicle body bridge section 3 to rotate around the hinge axis hinged to the wheeled chassis 1, and includes: a hydraulic cylinder and a lifting frame, the lifting frame includes two support rods hinged to each other, the cylinder end of the hydraulic cylinder is fixedly connected to the wheeled chassis 1, the piston end is connected to one end of a support rod of the lifting frame and slides with the slide A. When the piston end is extended or retracted, it slides in the slide A, and one end of the other support rod of the lifting frame is fixed on the support of the wheeled chassis 1. The hinge of the two support rods on the lifting frame slides with the slide B at the rear end of the vehicle body bridge section 3 through a pulley.

[0030] The working process of the mechanized cargo bridge is as follows:

[0031] like Figure 2-4 As shown, for the erection of a self-propelled equipment loading and unloading cargo bridge (the equipment vehicle can directly drive from the ground to the rear bridge section 7, and then enter the cargo hold of the transport aircraft through the bridge deck of the mechanized cargo bridge), in the transport state, the front bridge section 5 and the rear bridge section 7 are folded and stored above the vehicle body bridge section 3, the bridge section jacking mechanism 2 is in the lowest position (the lowest position refers to the position of the bridge section jacking mechanism 2 when the piston end of the bridge section jacking mechanism 2 is fully retracted into the hydraulic cylinder), and the vehicle body bridge section 3 is in a backward and downward tilted state; the wheeled chassis vehicle 1 drives to the set position behind the cargo hold of the transport aircraft, parks outside the cargo hold of the transport aircraft, and deploys the double-cylinder bridge frame A4 and the double-cylinder deployment Under the action of the bridge frame B9, the front bridge section 5 and the rear bridge section 7 are unfolded respectively, and the universal running wheels 8 on the rear bridge section 7 are extended to touch the ground as the running wheels of the rear bridge section 7. Then the wheeled chassis 1 is driven to the rear of the cargo hold of the transport aircraft, so that the front bridge section 5 on it is docked with the cargo hold of the transport aircraft, and the support legs A6 on the front bridge section 5 are extended to make it touch the ground for support (by extending and retracting the support legs A6, the erection height and angle of the front bridge section 5 are adjusted so that it can dock with the cargo hold of the transport aircraft), and then the universal running wheels 8 on the rear bridge section 7 are slowly retracted to make the rear end of the rear bridge section 7 touch the ground for support, thereby completing the erection of the self-equipped loading and unloading cargo bridge.

[0032] For the erection of a non-self-propelled equipment loading and unloading cargo bridge (the equipment vehicle is hoisted onto the rear bridge section 7 by external hoisting equipment, and then enters the cargo hold of the transport aircraft through the bridge deck of the mechanized cargo bridge), in the transport state, the front bridge section 5 and the rear bridge section 7 are folded and stored above the vehicle bridge section 3, and the bridge section lifting mechanism 2 is in the lowest position; the wheeled chassis 1 travels to the set position behind the cargo hold of the transport aircraft, parks outside the cargo hold of the transport aircraft, and under the action of the double-cylinder bridge frame A4 and the double-cylinder bridge frame B9, the front bridge section 5 and the rear bridge section 7 are respectively unfolded, and the universal running wheels 8 on the rear bridge section 7 are extended at the same time, so that they touch the ground and serve as the running wheels of the rear bridge section 7, and then the wheeled chassis 1 is driven into the rear of the cargo hold of the transport aircraft, so that the front bridge section 5 on it is docked with the cargo hold of the transport aircraft, the support legs A6 on the front bridge section 5 are extended and made to touch the ground for support, and then the support legs B10 on the rear bridge section 7 are extended. And make it touch the ground for support, the piston end of the hydraulic cylinder on the bridge section lifting mechanism 2 extends in the slide groove A, pushing the two support rods in the jacking frame on the bridge section lifting mechanism 2 to rotate relative to each other (the hinge points of the two support rods slide relative to each other in the slide groove B through the pulley), and then lift the vehicle bridge section 3, and then slowly retract the universal walking wheel 8 on the rear bridge section 7, finally by adjusting the height and angle of the support legs A6 and the support legs B10 and adjusting the bridge deck level of the vehicle bridge section 3 through the bridge section lifting mechanism 2, the cargo bridge deck is made level, and the erection of the non-self-propelled equipment loading and unloading cargo bridge is completed.

[0033] Embodiment 2:

[0034] On the basis of Example 1, the front end bridge section 5 and the rear end bridge section 7 each include more than two bridge sections, and the adjacent bridge sections of the front end bridge section 5 are hinged to each other so as to be folded or unfolded (driven by a hydraulic mechanism), and the adjacent bridge sections of the rear end bridge section 7 are hinged to each other so as to be folded or unfolded (driven by a hydraulic mechanism), which is beneficial to miniaturization of the mechanized cargo bridge by folding the front end bridge section 5 and the rear end bridge section 7 in the transportation state, and at the same time, it is beneficial to increase the length of the bridge deck by unfolding the front end bridge section 5 and the rear end bridge section 7 in the erection state of the mechanized cargo bridge.

[0035] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mechanized cargo bridge, characterized in that: include: Leg A (6), leg B (10), universal travel wheel (8), wheeled chassis (1), bridge section lifting mechanism (2) and vehicle body bridge section (3) arranged on the wheeled chassis (1), rear bridge section (7) arranged on the vehicle body bridge section (3), front bridge section (5), rear bridge section folding / expanding driving mechanism and front bridge section folding / expanding driving mechanism; The front end of the vehicle body bridge section (3) is hinged to the front end of the wheeled chassis (1), and the rear end of the vehicle body bridge section (3) is connected to the rear end of the wheeled chassis (1) via a bridge section lifting mechanism (2), and the bridge section lifting mechanism (2) is used to drive the vehicle body bridge section (3) to rotate around the hinge axis between it and the wheeled chassis (1); One end of the front bridge section (5) is hinged to the front end of the vehicle body bridge section (3), and the other end is provided with a support leg A (6); the front bridge section (5) can be driven by the front bridge section folding / expanding driving mechanism to rotate around the hinge axis between it and the vehicle body bridge section (3), so as to realize the folding or unfolding of the front bridge section (5); One end of the tail bridge section (7) is hinged to the rear end of the vehicle body bridge section (3), and the other end is provided with a universal running wheel (8) and a support leg B (10); the tail bridge section (7) can be driven by the tail bridge section folding / expanding driving mechanism to rotate around the hinge axis between it and the vehicle body bridge section (3), so as to realize the folding or unfolding of the tail bridge section (7); The front bridge section folding / expanding driving mechanism is a double-cylinder bridge frame A (4), and the rear bridge section folding / expanding driving mechanism is a double-cylinder bridge frame B (9). Both the double-cylinder bridge frame A (4) and the double-cylinder bridge frame B (9) include: a bridge frame and two hydraulic cylinders; The cylinder ends of the two hydraulic cylinders of the double-cylinder bridge frame A (4) are respectively connected to the upper front end of the vehicle body bridge section (3) and one end of the front end bridge section (5), and the piston ends of the two hydraulic cylinders are hinged at two opposite end points on the bridge frame. The front end of the vehicle body bridge section (3) and one end of the front end bridge section (5) connected to the front end of the vehicle body bridge section (3) are also respectively hinged to the bridge frame; The cylinder bodies of the two hydraulic cylinders of the double-cylinder bridge frame B (9) are respectively connected to the upper rear end of the vehicle body bridge section (3) and one end of the tail bridge section (7), and the piston ends of the two hydraulic cylinders are hinged at two opposite end points on the bridge frame. The rear end of the vehicle body bridge section (3) and the end of the tail bridge section (7) connected to the rear end of the vehicle body bridge section (3) are also respectively hinged to the bridge frame of the double-cylinder bridge frame B (9); A slide groove A is provided at the rear end of the wheeled chassis (1); a slide groove B is provided at the rear end of the vehicle body bridge section (3); the bridge section lifting mechanism (2) comprises: a hydraulic cylinder and a lifting frame, and the lifting frame comprises: two support rods hinged to each other, the cylinder end of the hydraulic cylinder of the bridge section lifting mechanism (2) is fixedly connected to the wheeled chassis (1), the piston end is connected to one end of a support rod of the lifting frame and slides with the slide groove A, one end of the other support rod of the lifting frame is fixed on the wheeled chassis (1), and the hinge of the two support rods on the lifting frame slides with the slide groove B at the rear end of the vehicle body bridge section (3) through a pulley; The front bridge section (5) and the rear bridge section (7) each include more than two bridge sections. The adjacent bridge sections of the front bridge section (5) are hinged to each other, so that the adjacent bridge sections can be folded or unfolded. The adjacent bridge sections of the rear bridge section (7) are hinged to each other, so that the adjacent bridge sections can be folded or unfolded.

2. The mechanized cargo bridge according to claim 1, characterized in that: The supporting legs A (6) and B (10) are both retractable structures.

3. A method for erecting a mechanized cargo bridge, characterized in that: It uses the mechanized cargo bridge as described in claim 1. For the erection of the self-propelled loading and unloading cargo bridge, in the transport state, the front bridge section (5) and the rear bridge section (7) are folded and stored above the vehicle body bridge section (3), and the bridge section lifting mechanism (2) is in the lowest position; the wheeled chassis vehicle (1) travels to the set position behind the cargo compartment of the transport aircraft, parks outside the cargo compartment of the transport aircraft, and under the action of the rear bridge section folding / expanding drive mechanism and the front bridge section folding / expanding drive mechanism, the front bridge section (5) and the rear bridge section (7) are respectively unfolded. The bridge section (7) is moved forward, and the universal running wheels (8) on the rear bridge section (7) are extended to touch the ground as running wheels of the rear bridge section (7). Then, the wheeled chassis (1) is driven into the rear of the cargo compartment of the transport aircraft, so that the front bridge section (5) on the wheeled chassis (1) is docked with the cargo compartment of the transport aircraft, and the support legs A (6) on the front bridge section (5) are extended to touch the ground for support, and then the universal running wheels (8) on the rear bridge section (7) are retracted to make the rear end of the rear bridge section (7) touch the ground for support, thereby completing the erection of the self-propelled equipment loading and unloading cargo bridge; For the erection of a non-self-propelled loading and unloading cargo bridge, in the transport state, the front bridge section (5) and the rear bridge section (7) are folded and stored above the vehicle body bridge section (3), and the bridge section lifting mechanism (2) is in the lowest position; the wheeled chassis vehicle (1) is driven to a set position behind the cargo compartment of the transport aircraft, and is parked outside the cargo compartment of the transport aircraft. Under the action of the rear bridge section folding / expanding drive mechanism and the front bridge section folding / expanding drive mechanism, the front bridge section (5) and the rear bridge section (7) are respectively unfolded, and at the same time, the universal running wheels (8) on the rear bridge section (7) are extended to touch the ground as the running wheels of the rear bridge section (7), and then the wheeled chassis vehicle (1) is driven into the cargo compartment of the transport aircraft. The rear end of the vehicle is provided with a front bridge section (5) connected to the cargo compartment of the transport aircraft, the support leg A (6) on the front bridge section (5) is extended and made to touch the ground for support, and then the support leg B (10) on the rear bridge section (7) is extended and made to touch the ground for support, the bridge section lifting mechanism (2) lifts the vehicle bridge section (3) to adjust the bridge deck height of the vehicle bridge section (3), and then the universal running wheel (8) on the rear bridge section (7) is retracted, and finally, by adjusting the extended length of the support leg A (6) and the support leg B (10) and adjusting the bridge deck level of the vehicle bridge section (3) through the bridge section lifting mechanism (2), the cargo bridge deck is made level, and the erection of the non-self-propelled equipment loading and unloading cargo bridge is completed.

4. The method for erecting a mechanized cargo bridge according to claim 3, characterized in that: The erection height and angle of the front bridge section (5) are adjusted by adjusting the extension length of the support leg A (6); and the erection height and angle of the rear bridge section (7) are adjusted by adjusting the extension length of the support leg B (10).