New energy highway-railway dual-purpose car puller

Abstract

The invention discloses a new energy highway-railway dual-purpose car puller, which relates to the technical field of car pulling equipment, and comprises a car pulling equipment body and a driving wheel assembly, an eight-in-one controller, a new energy battery, a high-voltage direct-current variable-frequency driving motor, a gearbox and two gearbox driving shafts are arranged on the traction equipment body, the input end of the eight-in-one controller is electrically connected with the output end of the new energy battery, and the input end of the eight-in-one controller is electrically connected with the input end of the high-voltage direct-current variable-frequency driving motor; the gearbox is connected with the high-voltage direct-current variable-frequency driving motor, the rear driving wheel assembly is installed at the rear end of the lower side of the vehicle pulling equipment body, the two corresponding height adjusting assemblies are installed on the front side and the rear side of the vehicle pulling equipment body, and the guiding assemblies are installed on the lower sides of the height adjusting assemblies. And the height adjusting assembly is matched with the guide assembly, so that steering can be performed very conveniently, and meanwhile, separation from a rail is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of tractor equipment, and in particular to a new energy dual-purpose tractor for road and rail. Background Art

[0002] Road-rail vehicles can travel on both roads and railways. When traveling on railways, they are provided with direction by guide wheels and powered by rubber tires. They are often used for maintenance and rescue work along roads and railways. New energy electric road-rail vehicles use electricity as a driving energy source, which is more environmentally friendly. During the application process, new energy electric road-rail vehicles need to be inspected, repaired and maintained after reaching a certain mileage to ensure the quality and service life of the dual-purpose vehicles.

[0003] It is inconvenient for existing road-rail vehicles to turn around when driving on the road, mainly because the design of their steering mechanism does not fully take into account the flexibility requirements of road driving. Specifically, the steering system of traditional road-rail vehicles is often bulky, with limited steering angles and lacks modern technical support such as electric power steering, which makes it difficult for drivers to operate in road driving scenarios that require frequent steering and turning, affecting the vehicle's maneuverability and efficiency.

[0004] At the same time, when traveling on the railway, the existing road-rail dual-use vehicles face more serious problems. Due to the small contact area between the rubber tires and the rails, the accuracy of manual steering wheel control is seriously insufficient, which directly leads to extremely difficult steering. It is often difficult for operators to quickly and accurately match the wheels with the rails, which consumes a lot of time and energy in the actual operation process. In addition, the contact stability between the rubber tires and the rails is poor, which is easily affected by factors such as uneven tracks and curves, further increasing the difficulty of steering. What is more serious is that when the vehicle is traveling at high speed, a large lateral component of force will be generated between the rubber tires and the rails. This lateral component of force will not only affect the driving stability of the vehicle, but may also cause the vehicle to derail, posing a huge threat to driving safety. Once derailed, it will not only cause damage to the equipment, but may also endanger the lives of surrounding personnel, and will seriously affect the normal operation of the railway line. For this reason, we propose a new energy road-rail dual-use tractor. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a new energy dual-purpose road-rail tractor that can turn very conveniently and avoid leaving the rails, thereby effectively solving the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a new energy road-rail dual-purpose tractor, comprising a tractor equipment body and a driving wheel assembly; Towing equipment body: an eight-in-one controller, a new energy battery, a high-voltage DC variable frequency drive motor, a gearbox and two gearbox drive shafts are arranged on it, the input end of the eight-in-one controller is electrically connected to the output end of the new energy battery, the input end of the eight-in-one controller is electrically connected to the input end of the high-voltage DC variable frequency drive motor, the gearbox is connected to the high-voltage DC variable frequency drive motor, a rear drive wheel assembly is installed at the rear end of the lower side of the towing equipment body, two corresponding height adjustment assemblies are installed on the front and rear sides of the towing equipment body, a guide assembly is installed on the lower side of the height adjustment assembly, and the height adjustment assembly and the guide assembly cooperate; Driving wheel assembly: includes a driving wheel bridge, a connecting frame, a connecting shaft, a connecting plate, a pull rod, a connecting plate, a pulling strip and a driving wheel, two driving wheel bridges are installed at the front end of the lower side of the towing equipment body, and the front and rear driving wheel bridges are respectively connected to the two gearbox transmission shafts arranged on the towing equipment body, and two corresponding connecting frames are arranged on the left and right sides of the driving wheel bridge, and the driving wheel is installed on the surface of the connecting frame, and a connecting plate is arranged inside the connecting frame, and an opening is arranged in the middle of the connecting plate, and a connecting shaft is fixed inside the opening, and two corresponding connecting holes are arranged on the upper and lower sides of the connecting frame, and the upper and lower ends of the connecting shaft are fixed inside the two connecting holes, and the left and right sides of the driving wheel bridge are provided with Two corresponding rotating holes, the connecting shaft is rotatably connected to the inside of the two rotating holes, the front side edge of the connecting plate is movably riveted with a pulling strip, the rear side edge of the connecting plate is provided with a mounting hole, the inside of the mounting hole is rotatably connected with a connecting disk, the two connecting disks are connected by a pull rod, and a driving wheel adjustment assembly is installed on the front side of the driving wheel bridge, and the left and right ends of the driving wheel adjustment assembly are connected to two pulling strips. By setting the driving wheel assembly, during the working process, the new energy battery can be controlled by the eight-in-one controller provided on the towing equipment body to power the high-voltage DC variable frequency drive motor, so that the four front and rear driving wheels are driven to rotate through the gearbox and the two gearbox rotating shafts, so that the towing equipment body can move forward and backward.

[0007] Further, the driving wheel adjustment assembly includes a cylinder, a piston, a piston rod, a return spring and an oil injection nozzle. The side of the driving wheel bridge is fixed with a cylinder, and the piston is slidably connected inside the cylinder. Two corresponding piston rods are fixed to the left and right ends of the piston, and the two piston rods are respectively riveted to the corresponding two pull strips. The surface of the piston rod is sleeved with a return spring, and the adjacent ends of the two return springs are respectively fixed to the left and right ends of the piston, and the other ends of the two return springs are respectively fixed to the left and right ends of the cylinder. Two corresponding oil injection nozzles are arranged on the left and right ends of the cylinder surface. An oil tank is arranged inside the towing device body, and two groups of four oil injection nozzles are connected to the oil tank arranged inside the towing device body through two reversing valves. The angles of the four driving wheels are adjusted by arranging two driving wheel adjustment assemblies. If the steering directions are the same after adjustment, driving the four driving wheels can enable the towing device body to travel obliquely without moving the vehicle body. If the steering directions are different after adjustment, driving the four driving wheels can facilitate the towing device body to make a 360-degree turn. In this case, it is convenient for the towing device body to turn and turn around when driving on the road.

[0008] Furthermore, the height adjustment assembly includes a fixed frame, a guide tube, a hydraulic rod and a support plate. Two corresponding fixed frames are fixed on the front and rear sides of the towing equipment body, and two corresponding guide tubes are fixed on the sides of the fixed frames. A hydraulic rod is installed on the upper end of the guide tube, and a support plate is fixed on the telescopic arm of the hydraulic rod. The support plate is located inside the guide tube, and the height of the guide assembly is adjusted by setting the height adjustment assembly.

[0009] Furthermore, the guide assembly includes a spring shock absorber, a slide tube, a connecting ring, an axle, a guide wheel and a limit pin, the guide tube is slidably connected to the inside of the guide tube, the upper end of the slide tube is fixed with a spring shock absorber, the upper end of the spring shock absorber is fixed to the lower end of the corresponding support plate, the lower end of the slide tube is fixed with a connecting ring, the insides of two adjacent connecting rings are rotatably connected to the axle, two guide wheels are installed at the left and right ends of the axle surface, a limit pin is fixed on the front side of the slide tube, and the limit pin corresponds to the guide tube. By setting the guide assembly, when the tractor equipment body is traveling on the rails, when the four guide wheels contact the rails, the eight-in-one controller provided on the tractor equipment body automatically controls the four driving wheels to be centered. After centering, the steering wheel inside the tractor equipment body is automatically locked. In this case, the tractor equipment body can only move forward and backward in the direction of the rails to prevent the tractor equipment body from being separated when traveling on the rails.

[0010] Furthermore, two corresponding towing hooks are fixed to the side of the fixing frame, and the towing hooks are provided to connect the towing device body to the vehicle to be towed.

[0011] Compared with the prior art, the beneficial effects of the present invention are: the new energy road-rail dual-purpose tractor has the following advantages: 1. Through the height adjustment component, start the hydraulic rod to make the guide wheel fit the rail. The eight-in-one controller automatically controls the driving wheel to center and locks the steering wheel to ensure that the traction equipment can only move forward and backward along the rail direction to prevent derailment; 2. Through the cooperation of the drive wheel assembly and the eight-unit controller, the new energy battery switches to the high-voltage DC variable frequency drive motor to drive the front and rear four drive wheels to move forward and backward. The controller can also adjust the deflection angle of the drive wheel, so that the vehicle can flexibly turn, diagonally and turn around, operate efficiently in a limited space, and quickly fit the rails to improve traction efficiency; 3. By setting new energy batteries as power, compared with traditional internal combustion engines, new energy batteries will not produce harmful emissions during operation, which is more in line with modern environmental protection requirements. In addition, new energy batteries also have the advantages of low maintenance costs and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure on the right side of the present invention; Figure 2 A schematic diagram of the structure of the drive wheel assembly of the present invention; Figure 3 A schematic diagram of the structure of the drive wheel adjustment assembly of the present invention; Figure 4 A schematic diagram of the structure of the rear drive wheel assembly of the present invention; Figure 5 A schematic diagram of the structure of the guide assembly of the present invention; Figure 6 It is a schematic diagram of the structure of the guide wheel of the present invention.

[0013] In the figure: 1 a towing device body, 2 a driving wheel assembly, 21 a driving wheel axle, 22 a connecting frame, 23 a connecting shaft, 24 a connecting plate, 25 a pulling rod, 26 a connecting plate, 27 a pulling strip, 28 a driving wheel, 3 a driving wheel adjusting assembly, 31 a cylinder, 32 a piston, 33 a piston rod, 34 a return spring, 35 an oil filling pipe opening, 4 a rear driving wheel assembly, 41 a rear driving wheel axle, 42 a second connecting frame, 43 a rear wheel, 5 a height adjustment assembly, 51 a fixing frame, 52 a guide tube, 53 a hydraulic rod, 54 a supporting plate, 6 a guiding assembly, 61 a spring shock absorber, 62 a sliding tube, 63 a connecting ring, 64 an axle, 66 a guiding wheel, 7 a towing hook. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1-6 ,This embodiment provides a technical solution: a new energy road-rail dual-purpose tractor, including a tractor equipment body and a driving wheel assembly; Towing equipment body: an eight-in-one controller, a new energy battery, a high-voltage DC variable frequency drive motor, a gearbox and two gearbox drive shafts are arranged on it. The input end of the eight-in-one controller is electrically connected to the output end of the new energy battery, and the input end of the eight-in-one controller is electrically connected to the input end of the high-voltage DC variable frequency drive motor. The gearbox is connected to the high-voltage DC variable frequency drive motor. A rear drive wheel assembly 4 is installed at the rear end of the lower side of the towing equipment body 1. Two corresponding height adjustment assemblies 5 are installed on the front and rear sides of the towing equipment body 1. A guide assembly 6 is installed on the lower side of the height adjustment assembly 5. The height adjustment assembly 5 and the guide assembly 6 cooperate. The drive wheel adjustment assembly 3 includes a cylinder body 31, a piston 32, a piston rod 33, a return spring 34 and an oil filling pipe mouth 35. A cylinder body 31 is fixed to the side of the drive wheel bridge 21. A piston 32 is slidably connected inside the cylinder body 31. Two corresponding piston rods 33 are fixed to the left and right ends of the piston 32. The two piston rods 33 are respectively connected to the corresponding two pulling wheels. The pull strips 27 are riveted together, and a return spring 34 is sleeved on the surface of the piston rod 33. The adjacent ends of the two return springs 34 are respectively fixed to the left and right ends of the piston 32, and the other ends of the two return springs 34 are respectively fixed to the left and right ends inside the cylinder body 31. Two corresponding oil filling nozzles 35 are arranged at the left and right ends of the surface of the cylinder body 31. An oil tank is arranged inside the tractor body 1. Two groups of four oil filling nozzles 35 are connected to the oil tank arranged inside the tractor body 1 through two reversing valves. The angles of the four drive wheels 28 are adjusted by arranging two drive wheel adjustment assemblies 3. If the steering directions are the same after adjustment, driving the four drive wheels 28 can make the tractor body 1 drive obliquely without moving the vehicle body. If the steering directions are different after adjustment, driving the four drive wheels 28 can facilitate the tractor body 1 to make a 360-degree turn. In this case, the tractor body 1 can turn and turn around conveniently when driving on the road. The height adjustment component 5 comprises a fixing frame 51, a guide tube 52, a hydraulic rod 53 and a support plate 54. Two corresponding fixing frames 51 are fixed on the front and rear sides of the tractor body 1. Two corresponding guide tubes 52 are fixed on the sides of the fixing frame 51. The upper end of the guide tube 52 is installed with a hydraulic rod 53. The telescopic arm of the hydraulic rod 53 is fixed with a support plate 54. The support plate 54 is located inside the guide tube 52. The height of the guide component 6 is adjusted by setting the height adjustment component 5. The guide assembly 6 comprises a spring shock absorber 61, a slide tube 62, a connecting ring 63, an axle 64, a guide wheel 65 and a limit pin 66. The guide tube 52 is slidably connected to the slide tube 62. The upper end of the slide tube 62 is fixed with the spring shock absorber 61. The upper end of the spring shock absorber 61 is fixed to the lower end of the corresponding support plate 54. The lower end of the slide tube 62 is fixed with a connecting ring 63. The interiors of two adjacent connecting rings 63 are rotatably connected to the axle 64. Two guide wheels 65 are installed on the left and right ends of the surface of the axle 64. A limit pin 66 is fixed on the front side of the tube 62, and the limit pin 66 corresponds to the guide tube 52. By setting the guide assembly 6, when the tractor body 1 is traveling on the rails, when the four guide wheels 65 contact the rails, the eight-in-one controller set on the tractor body 1 automatically controls the four driving wheels 28 to be centered. After the centering, the steering wheel inside the tractor body 1 is automatically locked. In this case, the tractor body 1 can only move forward and backward in the direction of the rails, so as to avoid the tractor body 1 from being separated when traveling on the rails. Driving wheel assembly: includes driving wheel bridge 21, connecting frame 22, connecting shaft 23, connecting plate 24, pull rod 25, connecting plate 26, pulling strip 27 and driving wheel 28. Two driving wheel bridges 21 are installed at the front end of the lower side of the tractor body 1. The front and rear driving wheel bridges 21 are respectively connected to the two gearbox transmission shafts arranged on the tractor body 1. Two corresponding connecting frames 22 are arranged on the left and right sides of the driving wheel bridge 21. The surface of the connecting frame 22 is equipped with a driving wheel. A connecting plate 24 is arranged inside the connecting frame 22. An opening is arranged in the middle of the connecting plate 24. The connecting shaft 23 is fixed inside the opening. Two corresponding connecting holes are arranged on the upper and lower sides of the connecting frame 22. The upper and lower ends of the connecting shaft 23 are fixed inside the two connecting holes. The left side of the driving wheel bridge 21 Two corresponding rotating holes are provided on the right side, and the connecting shaft 23 is rotatably connected to the inside of the two rotating holes. A pulling strip 27 is movably riveted on the front side of the connecting plate 24, and a mounting hole is provided on the rear side of the connecting plate 24. A connecting disk 26 is rotatably connected to the inside of the mounting hole. The two connecting disks 26 are connected by a pull rod 25. A driving wheel adjustment assembly 3 is installed on the front side of the driving wheel bridge 21, and the left and right ends of the driving wheel adjustment assembly 3 are connected to the two pulling strips 27. By setting the driving wheel assembly 2, the eight-in-one controller provided on the towing equipment body 1 can be used to control the new energy battery to power the high-voltage DC variable frequency drive motor during operation, so that the four front and rear driving wheels 28 are driven to rotate through the gearbox and the two gearbox rotating shafts, so that the towing equipment body 1 can move forward and backward.

[0016] Wherein: two corresponding towing hooks 7 are fixed on the side of the fixing frame 51, and the towing hooks 7 are provided to connect the vehicle to be towed to the vehicle body 1.

[0017] The working principle of a new energy dual-purpose road-rail tractor provided by the present invention is as follows: during use, the eight-in-one controller arranged on the tractor body 1 is first used to control the new energy battery to power the high-voltage DC variable frequency drive motor, so that the motor drives the front and rear four drive wheels 28 to rotate through the gearbox and two gearbox rotating shafts, so that the tractor body 1 moves forward and backward. During the process of the tractor body 1 moving forward and backward, if it is necessary to turn left, the hydraulic oil can be injected into the left end of the cylinder body 31 through the reversing valve. After the injection, the piston 32 will move along the cylinder body. When the two piston rods 33 move, the piston rod 33 on the right side will push the pulling strip 27 on the right side to move to the right, so that the connecting plate 24 on the right side deflects to the left. In this case, the driving wheel 28 on the right side can be driven to deflect to the left. The connecting plate 24 on the right side deflects to the left, and the pulling rod 25 on the left deflects to the left, so that the connecting plate 24 on the left side deflects to the left. In this case, the driving wheel 28 on the left side can be deflected to the left. When turning to the right, the hydraulic oil is injected into the right end of the cylinder body 31 through the reversing valve. In this way, the two driving wheels 28 are deflected to the right, so that the tractor body 1 can be turned conveniently. At the same time, on some complex roads, the angles of the front and rear four driving wheels 28 can be adjusted by controlling the two driving wheel adjustment components 3. After adjustment, if the steering directions of the front and rear two sets of driving wheels 28 are the same, driving the four driving wheels 28 can make the tractor body 1 travel obliquely without moving the vehicle body. After adjustment, if the steering directions of the front and rear two sets of driving wheels 28 are different, driving the four driving wheels 28 can make it convenient for the tractor body 1 to 3 60-degree turn. When the tractor body 1 runs onto the rail, the towing hook 4 is connected to the train to be towed. After the connection, the four hydraulic rods 53 are started to move the four support plates 54 downward, so that the four guide wheels 65 are pressed downward against the rail. After pressing, the eight-in-one controller provided on the tractor body 1 automatically controls the four driving wheels 28 to be centered. After the centering, the steering wheel inside the tractor body 1 is automatically locked. In this case, the tractor body 1 can only move forward and backward in the direction of the rail to avoid the tractor body 1 from being separated when running on the rail.

[0018] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A new energy dual-purpose road-rail tractor, characterized in that: It comprises a tractor body (1) and a driving wheel assembly (2); A tractor body (1) is provided with an eight-in-one controller, a new energy battery, a high-voltage DC variable frequency drive motor, a gearbox and two gearbox drive shafts, the input end of the eight-in-one controller is electrically connected to the output end of the new energy battery, the input end of the eight-in-one controller is electrically connected to the input end of the high-voltage DC variable frequency drive motor, the gearbox is connected to the high-voltage DC variable frequency drive motor, a rear drive wheel assembly (4) is installed at the rear end of the lower side of the tractor body (1), two corresponding height adjustment assemblies (5) are installed at the front and rear sides of the tractor body (1), a guide assembly (6) is installed at the lower side of the height adjustment assembly (5), and the height adjustment assembly (5) and the guide assembly (6) cooperate with each other; The driving wheel assembly (2) comprises a driving wheel frame bridge (21), a connecting frame (22), a connecting shaft (23), a connecting plate (24), a pull rod (25), a connecting plate (26), a pulling strip (27) and a driving wheel (28). Two driving wheel frame bridges (21) are installed at the front end of the lower side of the tractor body (1). The front and rear driving wheel frame bridges (21) are respectively connected to two gearbox transmission shafts provided on the tractor body (1). Two corresponding connecting frames (22) are provided on the left and right sides of the driving wheel frame bridge (21). The driving wheel is installed on the surface of the connecting frame (22). The connecting plate (24) is provided inside the connecting frame (22). The middle part of the connecting plate (24) is provided with an opening. The connecting shaft (23) is fixed inside the opening. 23), two corresponding connecting holes are provided on the upper and lower sides of the connecting frame (22), the upper and lower ends of the connecting shaft (23) are fixed inside the two connecting holes, the left and right sides of the driving wheel frame bridge (21) are provided with two corresponding rotating holes, the connecting shaft (23) is rotatably connected inside the two rotating holes, the front side edge of the connecting plate (24) is movably riveted with a pulling strip (27), the rear side edge of the connecting plate (24) is provided with a mounting hole, the inside of the mounting hole is rotatably connected with a connecting disk (26), the two connecting disks (26) are connected by a pull rod (25), the front side of the driving wheel frame bridge (21) is installed with a driving wheel adjustment assembly (3), the left and right ends of the driving wheel adjustment assembly (3) are connected to the two pulling strips (27).

2. A new energy road-rail dual-purpose tractor according to claim 1, characterized in that: The driving wheel adjustment assembly (3) comprises a cylinder body (31), a piston (32), a piston rod (33), a return spring (34) and an oil injection nozzle (35). The cylinder body (31) is fixed to the side of the driving wheel bridge (21). The piston (32) is slidably connected inside the cylinder body (31). Two corresponding piston rods (33) are fixed to the left and right ends of the piston (32). The two piston rods (33) are respectively movably riveted to the corresponding two pulling strips (27). The surface of the piston rod (33) is sleeved with a return spring (34). The adjacent ends of the two return springs (34) are respectively fixed to the left and right ends of the piston (32). The other ends of the two return springs (34) are respectively fixed to the left and right ends of the cylinder body (31). Two corresponding oil injection nozzles (35) are provided at the left and right ends of the surface of the cylinder body (31). An oil tank is provided inside the towing equipment body (1). Two groups of four oil injection nozzles (35) are connected to the oil tank provided inside the towing equipment body (1) through two reversing valves.

3. The new energy road-rail dual-purpose tractor according to claim 1 is characterized in that: The height adjustment assembly (5) comprises a fixing frame (51), a guide tube (52), a hydraulic rod (53) and a support plate (54); two corresponding fixing frames (51) are fixed on the front and rear sides of the towing equipment body (1); two corresponding guide tubes (52) are fixed on the side of the fixing frame (51); a hydraulic rod (53) is installed on the upper end of the guide tube (52); a support plate (54) is fixed on the telescopic arm of the hydraulic rod (53); and the support plate (54) is located inside the guide tube (52).

4. A new energy road-rail dual-purpose tractor according to claim 3, characterized in that: The guide assembly (6) comprises a spring shock absorber (61), a slide tube (62), a connecting ring (63), an axle (64), a guide wheel (65) and a limit pin (66); the guide tube (52) is slidably connected to the slide tube (62); the upper end of the slide tube (62) is fixed with a spring shock absorber (61); the upper end of the spring shock absorber (61) is fixed to the lower end of a corresponding support plate (54); the lower end of the slide tube (62) is fixed with a connecting ring (63); the insides of two adjacent connecting rings (63) are rotatably connected to the axle (64); two guide wheels (65) are installed at the left and right ends of the surface of the axle (64); the front side of the slide tube (62) is fixed with a limit pin (66); the limit pin (66) corresponds to the guide tube (52).

5. The new energy road-rail dual-purpose tractor according to claim 4 is characterized in that: Two corresponding towing hooks (4) are fixed on the side of the fixing frame (51).

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