Five-axle hydrostatic driving highway-railway dual-purpose traction device and operation method thereof

Abstract

The invention relates to a five-axle hydrostatic driving highway-railway dual-purpose tractor and an operation method thereof, and belongs to the field of highway-railway dual-purpose tractors. According to the technical scheme, the vehicle comprises a vehicle body, rubber driving wheels and guide wheels are arranged at the bottom of the vehicle body, a front wheel frame and a rear wheel frame are arranged on the lower portion of the vehicle body through slewing bearings respectively, a double-axle front drive is arranged on the lower portion of the front wheel frame, a double-axle rear drive is arranged on the lower portion of the rear wheel frame, and a locking mechanism is arranged between the front wheel frame and the rear wheel frame of the vehicle body. The locking structure comprises two locking hydraulic cylinders, cylinder bodies of the locking hydraulic cylinders are connected to the vehicle body in a hinged mode, piston rods of the two locking hydraulic cylinders face the opposite directions and are connected with locking push plates respectively, a locking embedding device is arranged behind the front wheel frame, and a locking embedding device is arranged in front of the rear wheel frame. Under the railway mode, five-axle ten-wheel driving is achieved, and the driving force is high; in the railway mode, the vehicle body is always of an integrated structure, the overall structure is strong in the traction state, and the running state is more stable compared with a front-back hinged vehicle body.

Description

Technical Field

[0001] The invention relates to a five-axle hydrostatic drive road-rail dual-purpose traction vehicle and an operating method thereof, and belongs to the field of road-rail dual-purpose traction vehicles. Background Art

[0002] In order to solve the purpose of being used on roads and railways respectively, the current road-rail dual-purpose vehicles are divided into front and rear bodies, which are connected in the middle by an articulated structure. The front and rear bodies can be unlocked when turning on the road and locked when traveling on the track, realizing the changes in the body structure under different states.

[0003] However, since the front and rear body structures of the road-rail dual-purpose vehicle are used for traction, in order to increase the traction when running on the track, more drive axles need to be added. At the same time, in order to ensure the overall operation stability, the integrated structure of the front and rear body needs to be strengthened. Summary of the Invention

[0004] In view of the above problems, the present invention provides a five-axle hydrostatic drive dual-purpose road-rail traction and its operation method, which solves the problems of insufficient strength and insufficient driving power in the integrated state of the double car bodies.

[0005] To achieve the above object, the technical solution adopted by the present invention is: The five-axle hydrostatic drive dual-purpose traction vehicle for road and rail transportation of the present invention comprises a vehicle body, a rubber driving wheel and a guide wheel are provided at the bottom of the vehicle body, a front wheel frame and a rear wheel frame are provided at the lower part of the vehicle body through slewing bearings, a double-axle front drive is provided at the lower part of the front wheel frame, and a double-axle rear drive is provided at the lower part of the rear wheel frame. The vehicle body is provided with a locking mechanism between the front wheel frame and the rear wheel frame. The locking structure includes two locking hydraulic cylinders. The cylinder bodies of the locking hydraulic cylinders are hingedly connected to the vehicle body. The piston rods of the two locking hydraulic cylinders face in opposite directions and are respectively connected to locking push plates. A locking interlocking device is provided at the rear of the front wheel frame, and a locking interlocking device is provided at the front of the rear wheel frame. The locking hydraulic cylinder pushes the locking push rod to engage with the locking interlocking device to achieve locking of the front and rear wheel frames and the vehicle body. The double-axle front drive is composed of two sets of drive axles, each of which is provided with a pair of rubber wheels. The front wheel frame is provided with a front intermediate lifting guide mechanism between the front and rear rubber wheels, and the front of the front wheel frame is provided with a front lifting guide mechanism. The double-axle rear drive is composed of two sets of drive axles, each of which is provided with a pair of rubber wheels. The rear wheel frame is provided with a rear intermediate lifting guide mechanism between the front and rear rubber wheels, and the rear of the rear wheel frame is provided with a rear lifting guide mechanism. A guide wheel is provided at the bottom of each lifting guide mechanism; A pontoon lifting device is arranged between the front wheel frame and the rear wheel frame. The pontoon lifting device includes a pontoon lifting guide box, a pontoon lifting cylinder, a pontoon lifting frame, a floating drive axle and a pontoon power mechanism. The pontoon lifting guide box is rigidly welded to the upper body. The pontoon lifting frame is provided with a transverse frame and a vertical sliding box. The transverse frame is located at the lower part of the vertical sliding box. The vertical sliding box is arranged in the pontoon lifting guide box. A pontoon lifting cylinder is arranged in the middle of the vertical sliding box to connect the bottom of the vertical sliding box and the top of the pontoon lifting guide box. The floating drive axle is arranged at the lower part of the pontoon lifting frame. The pontoon power mechanism is installed on the transverse frame. The pontoon power mechanism is connected to the power input shaft of the floating drive axle.

[0006] According to the five-axle hydrostatic drive dual-purpose road-rail traction, the middle opening of the front wheel frame is installed with the rotating part of the slewing support, the fixed part of the slewing support is fixed to the lower part of the vehicle body, the front part of the front wheel frame is installed with the front steering drive axle, the rear part is installed with the steering drive axle, and the front drive power mechanism is installed at the lower part of the middle position. The front and rear output ends of the front drive power mechanism are respectively connected to the front steering drive axle and the rear steering drive axle. The front steering drive axle and the rear steering drive axle of the front wheel frame are steering drive axles.

[0007] According to the five-axle hydrostatic drive dual-purpose road-rail traction, the front wheel frame is provided with the front intermediate lifting guide mechanism on both sides of the front driving power mechanism, the front intermediate lifting guide mechanism includes a lifting guide mechanism, a lifting hydraulic cylinder and a guide lifting wheel frame, the lower part of the guide lifting wheel frame is installed with the wheel axle of the guide wheel, the guide lifting frame connects the guide moving end of the lifting guide mechanism and the piston rod of the lifting hydraulic cylinder, the lifting hydraulic cylinder and the lifting guide mechanism are arranged side by side, and the cylinder body of the lifting hydraulic cylinder and the fixed end of the lifting guide mechanism are arranged at the edge position of the front wheel frame.

[0008] According to the five-axle hydrostatic drive dual-purpose road-rail traction, the front lifting guide mechanism is installed on both sides of the front end of the front wheel frame, and the edges of both sides of the front end of the front wheel frame are provided with mounting holes that pass through from top to bottom. The front middle lifting guide mechanism and the front lifting guide mechanism have the same structure, and the lifting hydraulic cylinder is embedded in the mounting hole.

[0009] According to the five-axle hydrostatic drive dual-purpose road-rail traction, the rear wheel frame and the double-axle rear drive are identical in structure to the front wheel frame and the double-axle front drive.

[0010] According to the five-axle hydrostatic drive dual-purpose road-rail traction, the front end of the locking thrust plate of the front wheel frame is trapezoidal, and the locking engaging device is provided with a trapezoidal inner groove. The lower part of the vehicle body is also provided with a locking slide groove. After the locking thrust plate passes through the locking slide groove, the front end of the locking thrust plate is trapezoidally embedded in the trapezoidal inner groove.

[0011] According to the five-axle hydrostatic drive dual-purpose road-rail traction, the locking mechanism on the rear wheel frame is symmetrical with the locking mechanism on the front wheel frame.

[0012] According to the five-axle hydrostatic drive dual-purpose road-rail traction, an engine and a hydraulic station are also provided in the vehicle body. The engine drives the hydraulic station to work. The hydraulic station is connected to the hydraulic motors and hydraulic cylinders of each drive axle. The hydraulic motor is connected to the input end of the drive axle to drive the rubber wheels to run. Couplers are respectively provided at the rear and front ends of the vehicle body.

[0013] The operating method of the five-bridge hydrostatic drive road-rail dual-purpose traction described in the present invention is divided into a road state and a railway state. On the road, The floating bridge lifting cylinder retracts, the floating drive axle is lifted away from the ground, the locking hydraulic cylinder of the locking mechanism extends, the locking push plate engages with the locking interlocking device of the front and rear wheel frames to achieve locking, and the lifting hydraulic cylinders of the front middle lifting guide mechanism and the front lifting guide mechanism of the front wheel frame and the rear middle lifting guide mechanism and the rear lifting guide mechanism of the rear wheel frame retract, and the guide device is lifted away from the ground; the road state is four-axle drive, and steering is completed by the two sets of steering drive axles of the front wheel frame; Under railway conditions, The floating bridge lifting cylinder extends, and the floating drive axle falls to the ground; the locking hydraulic cylinder of the locking mechanism retracts, and the locking push plate separates from the locking interlocking device of the front and rear wheel frames, realizing unlocking. The front and rear wheel frames can rotate freely relative to the vehicle body with the turntable as the center of the circle; The lifting hydraulic cylinders of the front middle lifting guide mechanism and the front lifting guide mechanism of the front wheel frame and the rear middle lifting guide mechanism and the rear lifting guide mechanism of the rear wheel frame are extended, and the guide wheels fall to the rail surface. The railway state is five-axle drive, which increases the traction of the whole vehicle. The four sets of guide devices play a guiding role to adapt to the on-rail operation state; the front and rear wheel frames can rotate freely with the slewing bearing as the center relative to the vehicle body, and can pass through a smaller curve radius on the track.

[0014] The advantages of the present invention are: In railway mode, it has five-bridge ten-wheel drive and strong driving force; In railway mode, the car body always maintains an integrated structure, and the overall structure is strong in traction state. Compared with the car body connected by front and rear articulations, the running state is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention, Figure 2 It is a side structural diagram of the present invention, Figure 3 It is a bottom view structural diagram of the present invention, Figure 4 1 is a structural diagram of the front wheel frame and the rear wheel frame of the present invention, Figure 5 1 is a bottom view of the front wheel frame and rear wheel frame structure of the present invention, Figure 6 This is a structural diagram of the front wheel frame, rear wheel frame and wire structure combination of the present invention. Figure 7 This is a structural diagram of the floating drive axle of the present invention. Figure 8 This is a front side view of the floating drive axle of the present invention. Figure 9 This is a side cross-sectional structural diagram of the floating drive axle of the present invention. Figure 1: 1. Front traction coupler, 2. Vehicle body, 3. Cab, 4. Locking mechanism, 5. Locking hydraulic cylinder, 6. Locking push plate, 7. Locking interlocking device, 8. Floating drive axle, 9. Floating bridge power mechanism, 10. Floating bridge lifting guide box, 11. Floating bridge lifting cylinder, 12. Floating bridge lifting frame, 13. Front wheel frame, 14. Front steering drive axle, 15. Rear steering drive axle, 16. Front drive power mechanism, 17. Front middle lifting Guide mechanism, 18. Front lifting guide mechanism, 19. Slewing bearing, 20. Rear wheel frame, 21. Engine, 22. Hydraulic station, 23. Rear traction coupler, 24 Locking slide, 25 Lifting guide mechanism, 26. Lifting hydraulic cylinder, 27. Guide lifting wheel frame, 28. Rear middle lifting guide mechanism, 29. Rear lifting guide mechanism, 30. Rear frame front drive axle, 31. Rear frame rear drive axle, 32. Rails, 33. Guide wheel. DETAILED DESCRIPTION

[0016] The specific content of the present invention will be further described below: The five-axle hydrostatic drive dual-purpose road-rail traction vehicle of the present invention comprises a vehicle body 2 , the bottom of which is provided with rubber driving wheels and guide wheels.

[0017] The lower part of the vehicle body 2 of the device is provided with a front wheel frame 13 and a rear wheel frame 20 through a slewing bearing 19. The lower part of the front wheel frame 13 is provided with a double-axle front drive, and the lower part of the rear wheel frame 20 is provided with a double-axle rear drive.

[0018] The vehicle body 2 is provided with a locking mechanism 4 between the front wheel frame 13 and the rear wheel frame 20. The locking structure includes two locking hydraulic cylinders 5. The cylinder bodies of the locking hydraulic cylinders 5 are hingedly connected to the vehicle body 2. The piston rods of the two locking hydraulic cylinders 5 face in opposite directions and are respectively connected to the locking thrust plates 6. A locking interlocking device 7 is provided at the rear of the front wheel frame 13, and a locking interlocking device 7 is provided in front of the rear wheel frame 20. The locking hydraulic cylinders 5 push the locking push rod and the locking interlocking device. The double-axle front drive of this device is two sets of drive axles, each of which is provided with a pair of rubber wheels. The front wheel frame 13 is provided with a front intermediate lifting guide mechanism 17 between the front and rear rubber wheels, and the front of the front wheel frame 13 is provided with a front lifting guide mechanism 18. The double-axle rear drive is composed of two sets of drive axles, each of which is provided with a pair of rubber wheels. A rear intermediate lifting guide mechanism 25 is provided between the front and rear rubber wheels of the rear wheel frame 20, and a rear lifting guide mechanism 29 is provided at the rear of the rear wheel frame 20. A guide wheel is provided at the bottom of each lifting guide mechanism 25; A pontoon lifting device is arranged between the front wheel frame 13 and the rear wheel frame 20. The pontoon lifting device includes a pontoon lifting guide box 10, a pontoon lifting cylinder 11, a pontoon lifting frame 12, a floating drive axle 8 and a pontoon power mechanism 9. The pontoon lifting guide box 10 is rigidly welded to the upper body 2. The pontoon lifting frame 12 is provided with a transverse frame and a vertical sliding box. The transverse frame is located at the lower part of the vertical sliding box. The vertical sliding box is arranged in the pontoon lifting guide box 10. A pontoon lifting cylinder 11 is arranged in the middle of the vertical sliding box to connect the bottom of the vertical sliding box and the top of the pontoon lifting guide box 10. The floating drive axle 8 is arranged at the lower part of the pontoon lifting frame 12. The pontoon power mechanism 9 is installed on the transverse frame. The pontoon power mechanism 9 is connected to the power input shaft of the floating drive axle 8.

[0019] The middle opening of the front wheel frame 13 is installed with the rotating part of the slewing support, and the fixed part of the slewing support is fixed to the lower part of the vehicle body 2. The front steering drive axle 14 is installed at the front of the front wheel frame 13, and the rear steering drive axle is installed at the rear. The front drive power mechanism 16 is installed at the lower part of the middle position. The front and rear output ends of the front drive power mechanism 16 are respectively connected to the front steering drive axle 14 and the rear drive axle 15. The front steering drive axle 14 and the rear steering drive axle 15 of the front wheel frame 13 are steering drive axles.

[0020] The front wheel frame 13 is provided with the front intermediate lifting guide mechanism 17 on both sides of the front driving power mechanism 16. The front intermediate lifting guide mechanism 17 includes a lifting guide mechanism 25, a lifting hydraulic cylinder and a guide lifting wheel frame 27. The lower part of the guide lifting wheel frame 27 is installed with the wheel axle of the guide wheel. The guide lifting frame connects the guide moving end of the lifting guide mechanism 25 and the piston rod of the lifting hydraulic cylinder. The lifting hydraulic cylinder and the lifting guide mechanism 25 are arranged side by side. The cylinder body of the lifting hydraulic cylinder and the fixed end of the lifting guide mechanism 25 are arranged at the edge position of the front wheel frame 13.

[0021] The front lifting guide mechanism 18 is installed on both sides of the front end of the front wheel frame 13. The edges of both sides of the front end of the front wheel frame 13 are provided with mounting holes that pass through from top to bottom. The front middle lifting guide mechanism 17 and the front lifting guide mechanism 18 have the same structure, and the lifting hydraulic cylinder is embedded in the mounting hole.

[0022] The rear wheel frame 20 and double-axle rear drive of this device are symmetrically arranged with the front wheel frame 13 and double-axle front drive relative to the middle plane of the vehicle body, and the arranged structures are the same. Specifically, a rear lifting guide mechanism is set at the rear, and a rear middle lifting guide mechanism is set between the two drive axles.

[0023] Specifically, the front end of the locking thrust plate 6 on the front wheel frame 13 of this device is trapezoidal in shape, and the locking engaging device 7 is provided with a trapezoidal inner groove. The lower portion of the vehicle body 2 is also provided with a locking slide 24. After the locking thrust plate 6 passes through the locking slide 24, the front end of the locking thrust plate 6 is trapped in the trapezoidal inner groove. The locking mechanism 4 on the rear wheel frame 20 is symmetrical with the locking mechanism 4 on the front wheel frame 13.

[0024] The vehicle body 2 is also equipped with an engine and a hydraulic station. The engine drives the hydraulic station to work. The hydraulic station is connected to the hydraulic motors and hydraulic cylinders of each drive axle. The hydraulic motor is connected to the input end of the drive axle to drive the rubber wheel to run. Couplers are respectively provided at the rear and front ends of the vehicle body 2.

[0025] The present invention provides a five-axle hydrostatic drive road-rail dual-use traction operation method, wherein the vehicle operation is divided into a road state and a railway state. On the road, The floating bridge lifting cylinder 11 retracts, the floating drive axle 8 is lifted away from the ground, the locking hydraulic cylinder 5 of the locking mechanism 4 extends, and the locking push plate 6 engages with the locking interlocking device 7 of the front and rear wheel frames 20 to achieve locking. The lifting hydraulic cylinders of the front intermediate lifting guide mechanism 17 and the front lifting guide mechanism 18 of the front wheel frame 13 and the rear intermediate lifting guide mechanism 25 and the rear lifting guide mechanism 29 of the rear wheel frame 20 retract, and the guide devices are lifted away from the ground; the road state is four-axle drive, and steering is completed by the two sets of steering drive axles of the front wheel frame 13; Under railway conditions, The floating bridge lifting cylinder 11 extends, and the floating drive axle 8 falls to the ground; the locking hydraulic cylinder 5 of the locking mechanism 4 retracts, and the locking thrust plate 6 is separated from the locking interlocking device 7 of the front and rear wheel frames 20, thereby unlocking the front and rear wheel frames 20. The front and rear wheel frames 20 can freely rotate relative to the vehicle body 2 with the rotary disk as the center of the circle; The lifting hydraulic cylinders of the front middle lifting guide mechanism 17 and the front lifting guide mechanism 18 of the front wheel frame 13 and the rear middle lifting guide mechanism 25 and the rear lifting guide mechanism 29 of the rear wheel frame 20 are extended, and the guide wheels fall to the rail surface. The railway state is five-axle drive, which increases the traction of the whole vehicle. The four sets of guide devices play a guiding role to adapt to the on-rail operation state; the front and rear wheel frames can rotate freely relative to the vehicle body 2 with the slewing bearing 19 as the center of the circle, and can pass through a smaller curve radius on the track.

Claims

1. A five-axle hydrostatic drive dual-purpose road-rail traction vehicle, comprising a vehicle body (2), the bottom of which is provided with a rubber drive wheel and a guide wheel, characterized in that: The lower part of the vehicle body (2) is provided with a front wheel frame (13) and a rear wheel frame (20) through a slewing support (19). The lower part of the front wheel frame (13) is provided with a double-bridge front drive, and the lower part of the rear wheel frame (20) is provided with a double-bridge rear drive. The vehicle body (2) is provided with a locking mechanism (4) between the front wheel frame (13) and the rear wheel frame (20), and the locking structure includes two locking hydraulic cylinders (5), the cylinder bodies of the locking hydraulic cylinders (5) are hingedly connected to the vehicle body (2), the piston rods of the two locking hydraulic cylinders (5) face in opposite directions and are respectively connected to locking push plates (6), a locking interlocking device (7) is provided at the rear of the front wheel frame (13), and a locking interlocking device (7) is provided at the front of the rear wheel frame (20), and the locking hydraulic cylinders (5) push the locking push rods and the locking interlocking device (7) to interlock with each other, thereby achieving locking of the front and rear wheel frames (20) and the vehicle body (2); The double-axle front drive comprises two sets of drive axles, each of which is provided with a pair of rubber wheels. A front intermediate lifting guide mechanism (17) is provided between the front and rear rubber wheels of the front wheel frame (13), and a front lifting guide mechanism (18) is provided at the front of the front wheel frame (13). The double-axle rear drive comprises two sets of drive axles, each of which is provided with a pair of rubber wheels. A rear intermediate lifting guide mechanism (25) is provided between the front and rear rubber wheels of the rear wheel frame (20). A rear lifting guide mechanism (29) is provided at the rear of the rear wheel frame (20). A guide wheel is provided at the bottom of each lifting guide mechanism (25); A pontoon lifting device is provided between the front wheel frame (13) and the rear wheel frame (20), and the pontoon lifting device comprises a pontoon lifting guide box (10) body, a pontoon lifting oil cylinder (11), a pontoon lifting frame (12), a floating drive axle (8) and a pontoon power mechanism (9). The pontoon lifting guide box (10) body is rigidly welded to the upper vehicle body (2). The pontoon lifting frame (12) is provided with a transverse frame and a vertical sliding box. The transverse frame is located at the lower part of the vertical sliding box. The vertical sliding box is provided in the pontoon lifting guide box (10). A pontoon lifting oil cylinder (11) is provided in the middle of the vertical sliding box to connect the bottom of the vertical sliding box and the top of the pontoon lifting guide box (10). The floating drive axle (8) is provided at the lower part of the pontoon lifting frame (12). The pontoon power mechanism (9) is installed on the transverse frame. The pontoon power mechanism (9) is connected to the power input shaft of the floating drive axle (8).

2. The five-bridge hydrostatic drive dual-purpose road-rail traction system according to claim 1 is characterized in that: The middle opening of the front wheel frame (13) is used to install the rotating part of the slewing support, and the fixed part of the slewing support is fixed to the lower part of the vehicle body (2). The front steering drive axle (14) is installed at the front of the front wheel frame (13), and the steering drive axle is installed at the rear. The front driving power mechanism (16) is installed at the lower middle position. The front and rear output ends of the front driving power mechanism (16) are connected to the front steering drive axle (14) and the rear steering drive axle (15) respectively. The front steering drive axle (14) and the rear steering drive axle (15) of the front wheel frame (13) are steering drive axles.

3. The five-bridge hydrostatic drive dual-purpose road-rail traction system according to claim 2 is characterized in that: The front wheel frame (13) is provided with the front intermediate lifting guide mechanism (17) on both sides of the front driving power mechanism (16). The front intermediate lifting guide mechanism (17) includes a lifting guide mechanism (25), a lifting hydraulic cylinder and a guide lifting wheel frame (27). The lower part of the guide lifting wheel frame (27) is provided with a wheel axle of a guide wheel. The guide lifting frame connects the guide movable end of the lifting guide mechanism (25) and the piston rod of the lifting hydraulic cylinder. The lifting hydraulic cylinder and the lifting guide mechanism (25) are arranged side by side. The cylinder body of the lifting hydraulic cylinder and the fixed end of the lifting guide mechanism (25) are arranged at the edge position of the front wheel frame (13).

4. The five-bridge hydrostatic drive dual-purpose road-rail traction system according to claim 1 is characterized in that: The front lifting guide mechanism (18) is installed on both sides of the front end of the front wheel frame (13). The edges of both sides of the front end of the front wheel frame (13) are provided with mounting holes that pass through from top to bottom. The front middle lifting guide mechanism (17) and the front lifting guide mechanism (18) have the same structure, and the lifting hydraulic cylinder is embedded in the mounting hole.

5. The five-bridge hydrostatic drive dual-purpose road-rail traction system according to claim 3 is characterized in that: The rear wheel frame (20) and the double-bridge rear drive are identical in structure to the front wheel frame (13) and the double-bridge front drive.

6. The five-bridge hydrostatic drive dual-purpose road-rail traction system according to claim 3 is characterized in that: The front end of the locking thrust plate (6) of the front wheel frame (13) is trapezoidal, and the locking engaging device (7) is provided with a trapezoidal inner groove. The lower part of the vehicle body (2) is also provided with a locking slide groove (24). After the locking thrust plate (6) passes through the locking slide groove (24), the front end of the locking thrust plate (6) is trapezoidally embedded in the trapezoidal inner groove.

7. The five-bridge hydrostatic drive dual-purpose road-rail traction system according to claim 6 is characterized in that: The locking mechanism (4) on the rear wheel frame (20) and the locking mechanism (4) on the front wheel frame (13) are symmetrical in front and back directions.

8. According to the five-bridge hydrostatic drive dual-purpose road-rail traction, it is characterized by: An engine and a hydraulic station are also provided in the vehicle body (2). The engine drives the hydraulic station to work. The hydraulic station is connected to the hydraulic motors and hydraulic cylinders of each drive axle. The hydraulic motor is connected to the input end of the drive axle to drive the rubber wheel to run. Couplers are respectively provided at the rear and front ends of the vehicle body (2).

9. An operating method for a five-axle hydrostatic drive dual-purpose road-rail traction system according to claim 1, characterized in that: Vehicle operation is divided into road state and railway state. On the road, The floating bridge lifting cylinder (11) is retracted, the floating drive axle (8) is lifted away from the ground, the locking hydraulic cylinder (5) of the locking mechanism (4) is extended, the locking push plate (6) is combined with the locking engaging device (7) of the front and rear wheel frames (20) to achieve locking, the front middle lifting guide mechanism (17) and the front lifting guide mechanism (18) of the front wheel frame (13) and the rear middle lifting guide mechanism (25) and the rear lifting guide mechanism (29) of the rear wheel frame (20) are retracted, and the guide device is lifted away from the ground; the road state is four-axle drive, and the steering is completed by the two sets of steering drive axles of the front wheel frame (13); Under railway conditions, The floating bridge lifting cylinder (11) extends, and the floating drive bridge (8) falls to the ground; the locking hydraulic cylinder (5) of the locking mechanism (4) retracts, and the locking thrust plate (6) is separated from the locking engaging device (7) of the front and rear wheel frames (20), thereby achieving unlocking, and the front and rear wheel frames (20) can freely rotate relative to the vehicle body (2) with the rotary disk as the center of the circle; The lifting hydraulic cylinders of the front intermediate lifting guide mechanism (17) and the front lifting guide mechanism (18) of the front wheel frame (13) and the rear intermediate lifting guide mechanism (25) and the rear lifting guide mechanism (29) of the rear wheel frame (20) are extended, and the guide wheels fall to the rail surface. The railway state is five-axle drive, which increases the traction of the whole vehicle. The four sets of guide devices play a guiding role to adapt to the on-rail operation state; the front and rear wheel frames can rotate freely relative to the vehicle body (2) with the slewing bearing (19) as the center of the circle, and can pass through a smaller curve radius on the track.

Images