A trackless rubber-tyred vehicle

Abstract

The present invention provides a trackless rubber-tyred vehicle, which includes a bottom bracket, a rear ladder, a cooling device, a connecting bracket, an electric control box and a multi-functional pump. The bottom bracket is located at the bottom of the trackless rubber-tyred vehicle; the rear ladder is located at the tail of the trackless rubber-tyred vehicle; the cooling device is used for cooling the hydraulic oil; the connecting bracket is used for connecting the motor and the reduction box; the electric control box is located on the left side in the middle of the trackless rubber-tyred vehicle; the multi-functional pump provides power for the braking system and the steering system of the trackless rubber-tyred vehicle. The present application provides a trackless rubber-tyred vehicle with a simple design structure, high safety and low energy consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial machinery, and particularly to a trackless rubber-tyred vehicle. Background Art

[0002] At present, it is particularly important to design a trackless rubber-tyred vehicle with a simple structure, high safety and low energy consumption. Summary of the Invention

[0003] In order to solve the deficiencies in the prior art, the present application provides a trackless rubber-tyred vehicle with a simple structure and convenient installation.

[0004] A trackless rubber-tyred vehicle, the trackless rubber-tyred vehicle includes a bottom bracket, a rear ladder, a cooling device, a connection bracket, an electric control box and a multi-functional pump. Among them,

[0005] The bottom bracket is located at the bottom of the trackless rubber-tyred vehicle;

[0006] The rear ladder is located at the tail of the trackless rubber-tyred vehicle;

[0007] The cooling device is used to cool the hydraulic oil;

[0008] The connection bracket is used to connect the motor and the reduction gearbox;

[0009] The electric control box is located on the left side in the middle of the trackless rubber-tyred vehicle;

[0010] The multi-functional pump provides power for the braking system and the steering system of the trackless rubber-tyred vehicle.

[0011] In a possible implementation, the cooling device includes a radiator (105), a cooling fan (106) and a motor (109); among them,

[0012] The motor (109) is fixedly connected through the cooling fan (106), and the cooling fan (106) is correspondingly arranged with the radiator (105); the cooling fan (106) is correspondingly arranged with the radiator (105), and the cooling device is movably connected with the radiator (105);

[0013] The trackless rubber-tyred vehicle includes a charge valve (103), a hydraulic oil tank (101) and a wet brake (107); among them, one end of the radiator (105) is connected to the O outlet of the charge valve (103) through a pipeline, and the other end is fixedly connected to the wet brake (107) through a pipeline; the wet brake (107) is connected to the hydraulic oil tank (101) through a pipeline, and the T outlet of the charge valve (103) is connected to the hydraulic oil tank (101) through a pipeline;

[0014] The trackless rubber-tired vehicle further includes an electric control system (108), wherein the electric control system (108) is electrically connected to the motor (109); the trackless rubber-tired vehicle further includes an oil pump (102) and a braking system (104); wherein, the A outlet of the charging valve (103) is connected to the braking system (104) through an oil pipe, the P outlet of the charging valve (103) is connected to the oil pump (102) through an oil pipe, and the other end of the oil pump (102) is connected to the hydraulic oil tank (101) through an oil pipe.

[0015] In a possible implementation manner, the bottom bracket includes 6 side cross beams (201), 3 middle cross beams (203), and 6 hanging plates (202); wherein,

[0016] The hanging plates (202) are arranged on both the left and right sides of each middle cross beam (203); the bottom of the hanging plate (202) is fixedly connected to the middle cross beam (203); both ends of the 3 middle cross beams (203) are fixedly connected to the 6 side cross beams (201) respectively;

[0017] The trackless rubber-tired vehicle includes longitudinal beams (221) on both the left and right sides, and the longitudinal beams (221) are fixedly arranged with the frame of the trackless rubber-tired vehicle; 3 hanging plates (202) on the left side are fixedly connected to the left longitudinal beam, and 3 hanging plates (202) on the right side are fixedly connected to the right longitudinal beam of the frame.

[0018] In a possible implementation manner, the multi-functional pump of the trackless rubber-tired vehicle includes a motor box (301), a double gear pump (303), and a coupling (304), wherein,

[0019] The motor box (301) is fixedly connected to the double gear pump (303) through the coupling (304), and the motor box (301) is fixedly connected to the coupling (304); the multi-functional pump of the trackless rubber-tired vehicle further includes a connecting bracket (302), and the connecting bracket (302) fixes the motor box (301), the double gear pump (303), and the coupling (304) on the trackless rubber-tired vehicle;

[0020] The power output of the double gear pump (303) is braking power and steering power.

[0021] In a possible implementation manner, the rear ladder includes side plates (402) and pedals (403), and the trackless rubber-tired vehicle includes a rear bumper (401); wherein,

[0022] The rear ladder is arranged in cooperation with the rear bumper (401) of the trackless rubber-tyred vehicle. The rear bumper (401) penetrates through the side plates (402) and the pedal (403) of the rear ladder. The rear ladder includes two side plates (402) and two pedals (403). The two pedals (403) include an upper pedal and a lower pedal. The rear bumper (401) penetrates through the two side plates (402) and the upper pedal of the rear ladder.

[0023] The rear ladder further includes a long swing arm (404), a short swing arm (405) and a telescopic joint (406). The upper pedal is movably connected to the lower pedal through the short swing arm (405). The upper pedal is movably connected to the lower pedal through the long swing arm (404) and the telescopic joint (406). The long swing arm (404) is movably connected to the telescopic joint (406). The long swing arm (404) is movably connected to the short swing arm (405). The long swing arm (404) is provided with a through hole, and the telescopic joint (406) is provided with a bolt. The long swing arm (404) is movably connected to the bolt of the telescopic joint (406) through the through hole.

[0024] The long swing arm (404) is provided with a bolt, and the telescopic joint (406) is provided with a through hole. The long swing arm (404) is movably connected to the through hole of the telescopic joint (406) through the bolt. The short swing arm (405) is provided with a protrusion, and the long swing arm (404) is provided with a groove. The short swing arm (405) is in contact connection with the groove of the long swing arm (404) through the protrusion.

[0025] In a possible implementation manner, the connection bracket (503) of the trackless rubber-tyred vehicle includes a mounting plate (505), a seat plate (506) and a connecting plate (507). Among them,

[0026] The connecting plate (507) is arranged between the two mounting plates (505) and is fixedly connected to the two mounting plates (505) at the same time. The seat plate (506) is arranged at the bottom of the mounting plate (505) and is fixedly connected to the two connecting plates (507) at the same time.

[0027] The length of the seat plate (506) is greater than the interval width between the two mounting plates (505). The middle of the mounting plate (505) is provided with a circular hollow. The connecting plate (507) is a folded plate. The angle between the two sides of the folded plate is greater than 90°, and the connecting plate (507) is arranged around the edge of the circular hollow in the mounting plate (505).

[0028] In a possible implementation, the electric control box of the trackless rubber-tired vehicle includes four cover plates and an electric control box body (605). The four cover plates include a wiring cavity cover (601), a side cover (602), a bottom water-cooling cover (603), and a low-voltage battery cavity cover (604). Among them,

[0029] The wiring cavity cover (601), the side cover (602), the bottom water-cooling cover (603), and the low-voltage battery cavity cover (604) are respectively fixedly connected to the electric control box body (605);

[0030] The wiring cavity cover (601) is located on the left side of the electric control box body (605), the bottom water-cooling cover (603) is located at the bottom of the electric control box body (605), the side cover (602) is located on the front side of the electric control box body (605), and the low-voltage battery cavity cover (604) is located on the upper right side of the electric control box body (605);

[0031] The electric control box of the trackless rubber-tired vehicle includes a main control cavity, a low-voltage battery cavity (614), and a wiring cavity (615). The wiring cavity (615) is located on the left side of the electric control box, the low-voltage battery cavity (614) is located on the right side of the electric control box, and the main control cavity is located in the middle of the electric control box.

[0032] In a possible implementation, the cab of the trackless rubber-tired vehicle is communicated with the passenger compartment.

[0033] In a possible implementation, LED lights are arranged on the ground of the passenger compartment of the trackless rubber-tired vehicle.

[0034] This application provides a trackless rubber-tired vehicle with a simple design structure, high safety, and low energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0036] Figure 1 It is a schematic structural diagram of a cooling device of a trackless rubber-tired vehicle provided by this application;

[0037] Figure 2a It is a schematic structural diagram of a bottom bracket of a trackless rubber-tired vehicle provided by this application;

[0038] Figure 2b It is a schematic structural diagram of a bottom bracket of a trackless rubber-tired vehicle provided by this application;

[0039] Figure 3a Schematic diagram of the multi-functional pump structure of a trackless rubber-tyred vehicle provided by this application;

[0040] Figure 3b Schematic diagram of the multi-functional pump structure of a trackless rubber-tyred vehicle provided by this application;

[0041] Figure 4a Schematic diagram of the rear ladder structure of a trackless rubber-tyred vehicle provided by this application;

[0042] Figure 4b Schematic diagram of the rear ladder structure of a trackless rubber-tyred vehicle provided by this application;

[0043] Figure 4c Schematic diagram of the rear ladder structure of a trackless rubber-tyred vehicle provided by this application;

[0044] Figure 5a Schematic diagram of the connection bracket structure of a trackless rubber-tyred vehicle provided by this application;

[0045] Figure 5b Schematic diagram of the connection bracket structure of a trackless rubber-tyred vehicle provided by this application;

[0046] Figure 5c Schematic diagram of the connection bracket structure of a trackless rubber-tyred vehicle provided by this application;

[0047] Figure 6a Schematic diagram of the electric control box structure of a trackless rubber-tyred vehicle provided by this application;

[0048] Figure 6b Schematic diagram of the electric control box structure of a trackless rubber-tyred vehicle provided by this application;

[0049] Figure 6c Schematic diagram of the electric control box structure of a trackless rubber-tyred vehicle provided by this application;

[0050] Figure 6d Schematic diagram of the electric control box structure of a trackless rubber-tyred vehicle provided by this application;

[0051] Figure 6e Schematic diagram of the electric control box structure of a trackless rubber-tyred vehicle provided by this application;

[0052] Figure 6f Schematic diagram of the electric control box structure of a trackless rubber-tyred vehicle provided by this application.

[0053] Figures 1-6fIn the middle: hydraulic oil tank 101, oil pump 102, filling valve 103, braking system 104, radiator 105, cooling fan 106, wet brake 107, electric control system 108, motor 109; side crossbeam 201, hanging plate 202, middle crossbeam 203, left and right longitudinal beams 221 of the frame of the trackless rubber-tyred vehicle; motor box 301, connecting bracket 302, double gear pump 303, coupling 304; rear bumper 401, side plate 402, pedal 403, long swing arm 404, short swing arm 405, telescopic joint 406; motor bracket 501, motor 502, connecting bracket 503, reduction gearbox (horizontally installed) 504, mounting plate 505, seat plate 506, connecting plate 507, guard plate 508; wiring cavity cover 601, side cover 602, bottom water-cooled cover 603, low-voltage battery cavity cover 604, electric control box body 605, electric control box mounting position 600, main control cavity (control layer) 611, main control cavity (battery energy layer) 612, main control cavity (high-voltage power layer) 613, low-voltage battery cavity 614, wiring cavity 615. Detailed implementation mode

[0054] The technical solution of the present invention will be further described in detail below with reference to the drawings and embodiments.

[0055] A cooling device for a trackless rubber-tyred vehicle, the trackless rubber-tyred vehicle cooling device includes a radiator 105, a cooling fan 106 and a motor 109; wherein,

[0056] The motor 109 is fixedly connected through the cooling fan 106, and the cooling fan 106 is correspondingly arranged with the radiator 105.

[0057] In one example, the cooling fan 106 is correspondingly arranged with the radiator 105, including: the cooling device is movably connected with the radiator 105.

[0058] In one example, the trackless rubber-tyred vehicle includes a filling valve 103, a hydraulic oil tank 101 and a wet brake 107; wherein, one end of the radiator 105 is connected to the outlet of the filling valve 103D through a oil pipe, and the other end is fixedly connected to the wet brake 107 through a oil pipe; the wet brake 107 is connected to the hydraulic oil tank 101 through a oil pipe, and the outlet of the filling valve 103T is connected to the hydraulic oil tank 101 through a oil pipe.

[0059] In one example, the trackless rubber-tyred vehicle further includes an electric control system 108, wherein the electric control system 108 is electrically connected to the motor 109.

[0060] In one example, the trackless rubber-tyred vehicle further includes an oil pump 102 and a braking system 104; wherein, the outlet of the fluid filling valve 103A is electrically connected to the braking system 104, the outlet of the fluid filling valve 103P is fixedly connected to the oil pump 102, and the other end of the oil pump 102 is connected to the hydraulic oil tank 101 through an oil pipe.

[0061] In this embodiment, the principle of the cooling device of the trackless rubber-tyred vehicle is as follows: The hydraulic oil pump sucks hydraulic oil from the hydraulic oil tank through an oil pipe, and the hydraulic oil is pressurized by the oil pump. The high-pressure oil flows into the P port of the fluid filling valve through the oil pipe. When the pressure of the braking system is relatively low, the fluid filling valve fills the braking system with high-pressure oil from the A port through the hydraulic oil pipe. When the oil pressure of the braking system reaches the requirement, the fluid filling valve directs the hydraulic oil to the O port and flows to the radiator through the oil pipe. In the radiator, the hydraulic oil dissipates heat into the air to achieve the purpose of cooling the hydraulic oil. The cooled hydraulic oil flows into the wet brake through the oil pipe, and then this part of the hydraulic oil flows out of the wet brake and flows back to the hydraulic oil tank through the oil pipe. The excess hydraulic oil of the fluid filling valve also flows back to the tank through the oil pipe via the T port.

[0062] The cooling fan of the radiator increases the cooling intensity of the hydraulic oil by blowing air forcibly towards the radiator. The rotation of the fan is realized by a motor. The fan is fastened to the shaft of the motor by bolts. The rotation of the motor is driven by the electric power transmitted from the motor controller, and they are connected by wires.

[0063] In addition, it should be noted that when the trackless rubber-tyred vehicle adopts wet braking, the wet braking system adopts a two-stage forced cooling form. When the working intensity of the braking system is low and the oil temperature is low, the oil in the brake is circulated to the cooler. The cooler is located in the air duct under the cab. At this time, only the natural ventilation of the cooler is sufficient to achieve the required cooling effect. When the braking intensity is high, the brake oil temperature rises to a certain temperature because it cannot obtain sufficient heat dissipation intensity. At this time, the fan starts to increase the heat dissipation intensity and take away the heat generated by braking.

[0064] This can not only ensure the safety of braking and the service life of the brake, but also reduce the cooling energy consumption and use electric energy more effectively.

[0065] For the bottom bracket of a trackless rubber-tyred vehicle, the bottom bracket of the trackless rubber-tyred vehicle includes 6 side crossbeams 201, 3 middle crossbeams 203 and 6 hanging plates 202; the hanging plates 202 are arranged on both the left and right sides of each middle crossbeam 203; the bottom of the hanging plate 202 is fixedly connected to the middle crossbeam 203; both ends of the 3 middle crossbeams 203 are fixedly connected to the 6 side crossbeams 201 respectively.

[0066] In one example, the trackless rubber-tyred vehicle includes longitudinal beams 221 on both the left and right sides, and the longitudinal beams 221 are fixedly arranged with the frame of the trackless rubber-tyred vehicle; among them, three hanging plates 202 on the left side are fixedly connected to the left longitudinal beam, and three hanging plates 202 on the right side are fixedly connected to the right longitudinal beam of the frame.

[0067] In one example, a reducer and a motor are arranged on the middle cross beam 203, and among them, the reducer and the motor are respectively fixedly connected to the middle cross beam 203. An electric control box, a water tank and a water pump are arranged on the left side cross beam 201; among them, the electric control box, the water tank and the water pump are respectively fixedly connected to the left side cross beam 201; an energy storage device, a hydraulic power unit and a hydraulic oil tank are arranged on the right side cross beam 201; among them, the energy storage device, the hydraulic power unit and the hydraulic oil tank are respectively fixedly connected to the right side cross beam 201.

[0068] In this embodiment, the bottom bracket of the trackless rubber-tyred vehicle is located below the middle of the vehicle and plays a role in supporting and installing vehicle components. Three hanging plates 202 on each of the left and right sides hoist the whole structure onto the left and right longitudinal beams of the frame with bolts.

[0069] In addition, a motor and a reducer assembly are installed in the middle of the bottom bracket. The left side provides support for the electric control box, the water tank and the water pump, and the right side provides support for the hydraulic oil tank, the hydraulic power unit, the hydraulic control valve and the energy storage device, etc.

[0070] In this embodiment, the bottom bracket installed in the middle of the longitudinal beam is an integral structure: the three cross beams on the left, middle and right are interconnected structurally and become an integral body to bear the weights of various components; and this integral cross beam is connected to the frame through three hanging brackets on each of the left and right sides. This integral structure is reasonable and distributes the load evenly on the frame and various structural components. Especially for the frame, it only bears bending and does not bear torsional load. The integral structure in the middle of the bottom bracket is located below the middle of the vehicle and plays a role in supporting and installing vehicle components. An electric motor and a reduction gearbox assembly are installed in the middle of this integral bracket. The left side provides support for the electric control box, the water tank and the water pump, and the right side provides support for the hydraulic oil tank, the hydraulic power unit, the hydraulic control valve and the energy storage device, etc. Three hanging plates on each of the left and right sides hoist the whole structure onto the left and right longitudinal beams of the frame with bolts. The components of the integral structure are installed together with bolts. It is mainly composed of hanging plates, middle cross beams and side cross beams. These components are structural parts, which are made by cutting, bending, punching and welding high-strength steel plates.

[0071] In this embodiment, the integral structure of the bottom bracket has the following advantages: (1) The forces on each component are reasonable, and it will not affect the vehicle frame. The entire structure is relatively heavy after installing the upper components. These weights are transmitted to the vehicle frame through 3 suspension plates on each of the left and right sides, thereby dispersing its load. In addition, the longitudinal beam of the vehicle frame only bears bending moment without torque, which is the most favorable stress form for its "C" - shaped structure. The middle cross - beam not only bears the force transmitted from the middle motor and reduction box, but also plays a role in connecting the left and right side cross - beams into a whole. The entire structure integrates each component according to its function, and together with the left and right flip - up side covers, it makes the vehicle assembly and maintenance more convenient.

[0072] (2) Light weight. Due to reasonable design and high utilization rate of component materials, large - sized reinforcing beams and other components are omitted, so the weights of each component are relatively light.

[0073] (3) Simple structure and convenient installation. All components of the entire structure are installed with bolts, and at the same time, their positions are on both sides of the vehicle, with good accessibility, so the installation is relatively convenient.

[0074] In addition, there is a multi - functional pump for a trackless rubber - tired vehicle. The multi - functional pump for the trackless rubber - tired vehicle includes a motor box 301, a double - gear pump 303, and a coupling 304.

[0075] The motor box 301 is fixedly connected to the double - gear pump 303 through the coupling 304, and the motor box 301 is fixedly connected to the coupling 304.

[0076] In one example, the multi - functional pump for the trackless rubber - tired vehicle further includes a connecting bracket 302, and the connecting bracket 302 fixes the motor box 301, the double - gear pump 303, and the coupling 304 on the trackless rubber - tired vehicle.

[0077] In one example, the power output of the double - gear pump 303 is braking power and steering power.

[0078] In the present invention, driving two mutually independent pumps by one power source is achieved by driving a double - gear pump with one motor. The connecting bracket fixes the motor and the double - pump in the correct position, and the coupling connects the electric power output shaft and the double - pump shaft together, so that the motor can drive the pump shaft to rotate.

[0079] Furthermore, a rear ladder of a trackless rubber-tyred vehicle, the rear ladder includes side plates 402 and pedals 403, and the trackless rubber-tyred vehicle includes a rear bumper 401. The rear ladder is cooperatively arranged with the rear bumper 401 of the trackless rubber-tyred vehicle, and the rear bumper 401 penetrates through the side plates 402 and pedals 403 of the rear ladder. The rear ladder includes two side plates 402 and two pedals 403, and the two pedals 403 include an upper pedal and a lower pedal; wherein, the rear bumper 401 penetrates through the two side plates 402 and the upper pedal of the rear ladder.

[0080] The rear ladder further includes a long swing arm 404, a short swing arm 405 and a telescopic joint 406; the upper pedal is movably connected to the lower pedal through the short swing arm 405, and the upper pedal is movably connected to the lower pedal through the long swing arm 404 and the telescopic joint 406; the long swing arm 404 is movably connected to the telescopic joint 406, and the long swing arm 404 is movably connected to the short swing arm 405.

[0081] In one example, the long swing arm 404 is provided with a through hole, the telescopic joint 406 is provided with a bolt, and the long swing arm 404 is movably connected to the bolt of the telescopic joint 406 through the through hole;

[0082] The long swing arm 404 is provided with a bolt, the telescopic joint 406 is provided with a through hole, and the long swing arm 404 is movably connected to the through hole of the telescopic joint 406 through the bolt.

[0083] In one example, the short swing arm 405 is provided with a protrusion, the long swing arm 404 is provided with a groove, and the short swing arm 405 is in contact connection with the groove of the long swing arm 404 through the protrusion.

[0084] Among the upper pedal and the lower pedal, the upper and lower positions are relative. The position of the upper pedal is arranged above the lower pedal. In the present invention, the rear ladder and the rear bumper are integrated, and the middle step is welded on the rear bumper round tube. The rear ladder is composed of the rear bumper tube, side plates and pedals. The middle part between the two pedals is fixed, and the lower one is movable. The lower pedal and the structure above it are connected together through the long swing arm, short swing arm and telescopic joint, and can have telescopic and swinging actions. The structure above it is welded into a whole. The pedals are made of patterned plates, which play a role in anti-slip. The whole structure is installed on the main beam of the vehicle frame through the left and right side plates with bolts. When the lower step contacts the ground or other objects, it will first swing upward to avoid, and then the telescopic joint will take effect to generate more avoidance actions.

[0085] The rear ladder has the following advantages: 1. While taking into account comfort, it increases the departure angle of the vehicle, thereby improving the vehicle's passability. The smaller the distance between the rear ladder pedal and the ground, the more convenient it is to get on the vehicle. However, this will also cause the departure angle of the vehicle to become smaller, affecting the vehicle's passing performance. Therefore, the lowest step of the rear ladder is designed as a movable structure, which yields when it touches the ground, thereby improving the vehicle's passing performance. If more avoidance actions are required, or the contact with the ground comes from the rear (when the vehicle is reversing), the telescopic section will extend and retract to generate more avoidance actions. 2. The rear ladder is an external type. The external rear ladder eliminates the need for a sunken ladder inside the carriage, providing more space inside the carriage. At the same time, the carriage floor is flat, and the structure of the carriage is simpler. In addition, the height of the rear door of the carriage will be reduced accordingly, thereby reducing the weight of the door. 3. The functions of the rear ladder and the rear bumper are integrated, making the structure simpler and lighter.

[0086] And a connecting bracket for a rail-less rubber-tired vehicle, the rail-less rubber-tired vehicle connecting bracket 503 includes a mounting plate 505, a seat plate 506, and a connecting plate 507. The connecting plate 507 is disposed between the two mounting plates 505 and is fixedly connected to the two mounting plates 505; the seat plate 506 is disposed at the bottom of the mounting plate 505 and is fixedly connected to the two connecting plates 507.

[0087] In one example, the length of the seat plate 506 is greater than the interval width between the two mounting plates 505. A circular hollow is provided in the middle of the mounting plate 505. The connecting plate 507 is a folding plate, the angle between the two sides of the folding plate is greater than 90°, and the connecting plate 507 is disposed around the edge of the circular hollow in the mounting plate 505.

[0088] In one example, the rail-less rubber-tired vehicle includes a motor bracket 501, a motor 502, and a reduction gearbox 504; wherein, the rail-less rubber-tired vehicle connecting bracket is disposed between the motor bracket 501 and the reduction gearbox 504, and the rail-less rubber-tired vehicle connecting bracket is fixedly connected to the motor bracket 501 and fixedly connected to the reduction gearbox 504; the reduction gearbox 504 is horizontally disposed, and the motor 502 is disposed in the motor bracket 501. The rail-less rubber-tired vehicle further includes a guard plate 508, wherein, the guard plate 508 is disposed at the bottom of the reduction gearbox 504.

[0089] In the present invention, the guard plate 508 effectively protects the reduction gearbox 504; the reduction gearbox 504 is horizontally mounted, increasing the minimum ground clearance; the rail-less rubber-tired vehicle connecting bracket 503 is both a connecting bracket and a mounting bracket for the power unit.

[0090] In one example, the connecting plate 507 can be composed of six bent steel plates. Its left and right planes are respectively welded to two mounting plates, and its function is to connect the two mounting plates respectively connected to the motor and the reduction gearbox. The entire connecting bracket bears the bending moment caused by the weights of the motor and the reduction gearbox, and also bears the torque transmitted from the reduction gearbox. The six connecting plates are integrally distributed in a ring shape, enabling the material performance to be exerted under both torsional and bending conditions.

[0091] The connection bracket of the trackless rubber-tyred vehicle in the present invention has a simple structure, is convenient to install, saves space, and ensures the mechanical connection strength between the motor and the reduction gearbox.

[0092] In addition, an electric control box of a trackless rubber-tyred vehicle, the electric control box of the trackless rubber-tyred vehicle includes four covers and an electric control box body 605. The four covers include a wiring cavity cover 601, a side cover 602, a bottom water-cooling cover 603, and a low-voltage battery cavity cover 604.

[0093] The wiring cavity cover 601, the side cover 602, the bottom water-cooling cover 603, and the low-voltage battery cavity cover 604 are respectively fixedly connected to the electric control box body 605;

[0094] The wiring cavity cover 601 is located on the left side surface of the electric control box body 605, the bottom water-cooling cover 603 is located at the bottom of the electric control box body 605, the side cover 602 is located on the front side surface of the electric control box body 605, and the low-voltage battery cavity cover 604 is located on the upper right side of the electric control box body 605.

[0095] In one example, the electric control box of the trackless rubber-tyred vehicle includes a main control cavity, a low-voltage battery cavity 614, and a wiring cavity 615. Among them, the wiring cavity 615 is located on the left side of the electric control box, the low-voltage battery cavity 614 is located on the right side of the electric control box, and the main control cavity is located in the middle of the electric control box.

[0096] In one example, the main control cavity includes a main control cavity control layer 611 for accommodating the control layer, a main control cavity energy layer 612 for accommodating the battery energy layer, and a main control cavity high-voltage power layer 613 for accommodating the high-voltage power layer. Among them, the main control cavity control layer 611 for accommodating the control layer is located on the upper layer of the main control cavity, the main control cavity energy layer 612 for accommodating the battery energy layer is located on the middle layer of the main control cavity, and the main control cavity high-voltage power layer 613 for accommodating the high-voltage power layer is located on the lower layer of the main control cavity.

[0097] In one example, the electric control box is located on the left side in the middle of the trackless rubber-tyred vehicle.

[0098] In the embodiments of the present application, the electric control box is a highly integrated box. On the premise of meeting the explosion-proof function requirements of coal mine safety, the vehicle electric control system VCU, battery management system BMS, motor controller, and low-voltage battery system are integrated in one box.

[0099] The installation position 600 of the electric control box is located on the left side of the middle of the vehicle and is fixed to the integral bracket in the middle of the vehicle by 4 bolts.

[0100] The electric control box is composed of four covers and an electric control box body 605. The 4 covers are installed by bolts to enclose the box body, and they are the wiring cavity cover 601, side cover 602, bottom water-cooling cover 603, and low-voltage battery cavity cover 604 respectively. The bottom water-cooling cover 603 is a steel plate with cooling water channels. It not only isolates the cooling water channels from the inside of the electric control box to play an explosion-proof role, but also takes away the heat generated by the motor controller fixed inside the electric control box on the water-cooling cover to play a cooling role. The remaining covers play the roles of sealing and explosion-proof.

[0101] The electric control box is of welded structure and consists of 3 mutually isolated chambers. The electrical components installed in them are connected together through wall-through terminals between the chambers. These chambers are the main control chamber, low-voltage battery chamber 614, and wiring chamber 615 respectively.

[0102] The main control chamber is divided into 3 layers, and they can communicate with each other. The upper layer is the control layer, that is, the main control chamber, on which the vehicle controller VCU, relay, and fuse are installed by bolts; the middle layer is the battery energy layer, on which components related to the battery such as the battery management system BMS and high-voltage distribution box are installed by bolts; the lower layer is the high-voltage power layer, on which components such as the motor controller and DCAC are installed by bolts to provide driving power for each motor.

[0103] The low-voltage battery chamber 614 is installed with a 24V low-voltage battery module to provide power for the vehicle low-voltage electrical system. The function of the wiring chamber 615 is to introduce the input and output cables of the electric control box into it through the cable inlet device on it, so as to achieve the explosion-proof function.

[0104] The present application provides a trackless rubber-tyred vehicle with a simple design structure, high safety, and low energy consumption.

[0105] The above specific embodiments further elaborate on the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above is only the specific embodiment of the present invention and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A trackless rubber-tyred vehicle, characterized in that, The trackless rubber-tired vehicle includes a bottom bracket, a rear ladder, a cooling device, a trackless rubber-tired vehicle connection bracket, an electric control box, and a multi-functional pump. Among them, the bottom bracket is located at the bottom of the trackless rubber-tired vehicle; the rear ladder is located at the tail of the trackless rubber-tired vehicle; the cooling device is used to cool the hydraulic oil; the trackless rubber-tired vehicle connection bracket is used to connect the motor and the reduction gearbox; the electric control box is located on the left side in the middle of the trackless rubber-tired vehicle; the multi-functional pump provides power for the braking system and the steering system of the trackless rubber-tired vehicle; the cooling includes a radiator (105), a cooling fan (106), and a motor (109); among them, the motor (109) is fixedly connected through the cooling fan (106), and the cooling fan (106) is arranged corresponding to the radiator (105); the cooling fan (106) is arranged corresponding to the radiator (105), and the cooling fan is movably connected to the radiator (105); the trackless rubber-tired vehicle includes a liquid filling valve (103), a hydraulic oil tank (101), and a wet brake (107); among them, one end of the radiator (105) is connected to the O outlet of the liquid filling valve (103) through a pipeline, and the other end is fixedly connected to the wet brake (107) through a pipeline; the wet brake (107) is connected to the hydraulic oil tank (101) through a pipeline, and the T outlet of the liquid filling valve (103) is connected to the hydraulic oil tank (101) through a pipeline; the trackless rubber-tired vehicle further includes an electric control system (108), among which, the electric control system (108) is electrically connected to the motor (109); the trackless rubber-tired vehicle further includes an oil pump (102) and a braking system (104); among them, the A outlet of the liquid filling valve (103) is connected to the braking system (104) through a pipeline, the P outlet of the liquid filling valve (103) is connected to the oil pump (102) through a pipeline, and the other end of the oil pump (102) is connected to the hydraulic oil tank (101) through a pipeline; the bottom bracket includes 6 side cross beams (201), 3 middle cross beams (203), and 6 hanging plates (202); among them, the hanging plates (202) are arranged on both the left and right sides of each middle cross beam (203); the bottom of the hanging plate (202) is fixedly connected to the middle cross beam (203); both ends of the 3 middle cross beams (203) are fixedly connected to the 6 side cross beams (201) respectively.

2. The trackless rubber-tired vehicle according to claim 1, wherein the trackless rubber-tired vehicle includes longitudinal beams (221) on the left and right sides, and the longitudinal beams (221) are fixedly arranged with the frame of the trackless rubber-tired vehicle; 3 hanging plates (202) on the left side are fixedly connected to the left longitudinal beam, and 3 hanging plates (202) on the right side are fixedly connected to the right longitudinal beam of the frame.

3. The trackless rubber-tyred vehicle according to claim 1, characterized in that, The multi-functional pump of the trackless rubber-tired vehicle includes a motor box (301), a double gear pump (303), and a coupling (304). Among them, The motor box (301) is fixedly connected to the double gear pump (303) through a coupling (304), and the motor box (301) is fixedly connected to the coupling (304); the multi-functional pump of the trackless rubber-tyred vehicle further includes a connecting bracket (302), and the multi-functional pump connecting bracket (302) fixes the motor box (301), the double gear pump (303) and the coupling (304) on the trackless rubber-tyred vehicle; The power output of the double gear pump (303) is braking power and steering power.

4. The trackless rubber-tyred vehicle according to claim 1, wherein, The rear ladder includes side plates (402) and pedals (403), and the trackless rubber-tyred vehicle includes a rear bumper (401); among them, The rear ladder is cooperatively arranged with the rear bumper (401) of the trackless rubber-tyred vehicle, and the rear bumper (401) penetrates through the side plates (402) and pedals (403) of the rear ladder; the rear ladder includes two side plates (402) and two pedals (403), and the two pedals (403) include an upper pedal and a lower pedal; the rear bumper (401) penetrates through the two side plates (402) and the upper pedal of the rear ladder; The rear ladder further includes a long swing arm (404), a short swing arm (405) and a telescopic joint (406); the upper pedal is movably connected to the lower pedal through the short swing arm (405), and the upper pedal is movably connected to the lower pedal through the long swing arm (404) and the telescopic joint (406); the long swing arm (404) is movably connected to the telescopic joint (406), and the long swing arm (404) is movably connected to the short swing arm (405); the long swing arm (404) is provided with a through hole, the telescopic joint (406) is provided with a bolt, and the long swing arm (404) is movably connected to the bolt of the telescopic joint (406) through the through hole; The long swing arm (404) is provided with a bolt, the telescopic joint (406) is provided with a through hole, and the long swing arm (404) is movably connected to the through hole of the telescopic joint (406) through the bolt; the short swing arm (405) is provided with a protrusion, the long swing arm (404) is provided with a groove, and the short swing arm (405) is in contact connection with the groove of the long swing arm (404) through the protrusion.

5. The trackless rubber-tyred vehicle according to claim 1, wherein The trackless rubber-tyred vehicle connecting bracket (503) includes a mounting plate (505), a seat plate (506) and a connecting plate (507); among them, The connecting plate (507) is arranged between the two mounting plates (505) and is fixedly connected to the two mounting plates (505) at the same time; the seat plate (506) is arranged at the bottom of the mounting plate (505) and is fixedly connected to the two connecting plates (507) at the same time; The length of the seat plate (506) is greater than the interval width between the two mounting plates (505); a circular hollow is arranged in the middle of the mounting plate (505); the connecting plate (507) is a folding plate, the angle between the two sides of the folding plate is greater than 90°, and the connecting plate (507) is arranged around the edge of the circular hollow in the mounting plate (505).

6. The trackless rubber-tyred vehicle according to claim 1, wherein, The electric control box of the trackless rubber-tyred vehicle comprises four cover plates and an electric control box body (605). The four cover plates include a wiring cavity cover (601), a side cover (602), a bottom water-cooling cover (603) and a low-voltage battery cavity cover (604); among them, the wiring cavity cover (601), the side cover (602), the bottom water-cooling cover (603) and the low-voltage battery cavity cover (604) are respectively fixedly connected to the electric control box body (605); the wiring cavity cover (601) is located on the left side surface of the electric control box body (605), the bottom water-cooling cover (603) is located at the bottom of the electric control box body (605), the side cover (602) is located on the front side surface of the electric control box body (605), and the low-voltage battery cavity cover (604) is located at the upper right side of the electric control box body (605); the electric control box of the trackless rubber-tyred vehicle comprises a main control cavity, a low-voltage battery cavity (614) and a wiring cavity (615). The wiring cavity (615) is located on the left side of the electric control box, the low-voltage battery cavity (614) is located on the right side of the electric control box, and the main control cavity is located in the middle of the electric control box.

7. The trackless rubber-tyred vehicle according to claim 1, wherein The cab of the trackless rubber-tyred vehicle is communicated with the passenger compartment.

8. The trackless rubber-tyred vehicle according to claim 1, wherein, LED lights are arranged on the ground of the passenger compartment of the trackless rubber-tyred vehicle.

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