A drive device assembly for a two-wheel drive electric off-road vehicle

Abstract

The present invention discloses a drive device assembly for a two-wheel drive electric off-road vehicle, and relates to the technical field of electric vehicles. The device aims to solve the problem that when an electric off-road vehicle is traveling on a mountain road with a relatively large slope, the chassis is easily collided with the ground, thereby causing injuries to the vehicle and passengers. The device specifically includes a vehicle chassis, wherein the outer walls of both sides of the vehicle chassis are respectively provided with circular through holes, the inner walls of the circular through holes are respectively fixed with a connecting sleeve and a fixing cylinder, the inner walls of the connecting sleeve are rotatably connected to a half-shaft, the inner wall of the fixing cylinder is fixed to a support column, and the outer walls of one side of the half-shaft and the support column are provided with an L-shaped connecting block, the outer wall of one side of the L-shaped connecting block is fixed to the outer wall of one side of the vehicle chassis, the outer wall of one side of the L-shaped connecting block is rotatably connected to a rotating plate, and the inner wall of the rotating plate is rotatably connected to a rotating shaft. The present invention can keep the bottom of the vehicle chassis away from the ground without affecting the normal driving of the vehicle, thereby preventing the bottom of the vehicle chassis from colliding with the road surface when traveling on a road with a large gradient.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicles, and in particular to a drive device assembly of a two-wheel drive electric off-road vehicle. Background Art

[0002] With the improvement of people's living standards, electric off-road vehicles have become an indispensable part of our lives. However, the electric off-road vehicles currently on the market can basically only cross relatively complex roads and cannot achieve true off-road driving. Current off-road vehicles can only cross relatively small slopes. For mountain roads with relatively large slopes, current off-road vehicles cannot easily cross them. Drivers must drive with caution. If they are not careful, they may roll over or slip, causing great harm to people.

[0003] In order to solve the above problems, after searching, a patent application with Chinese patent application number CN201710300956.7 discloses a four-wheel drive electric off-road vehicle, including a body, two front drive wheels and two rear drive wheels, and also includes a front transverse beam rotatably connected to the front end of the body, a rear transverse beam rotatably connected to the rear end of the body, a front connecting arm rotatably connected to the front transverse beam and connected to the front drive wheels, and a rear connecting arm rotatably connected to the rear transverse beam and connected to the rear drive wheels. However, since the above technical solution does not provide a corresponding mechanism for raising and lowering the chassis on which the drive assembly is installed, there is still a problem that the chassis of the electric off-road vehicle is prone to collide with the ground when driving on a mountain road with a relatively large slope, thereby causing injuries to the vehicle and passengers. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a drive device assembly for a two-wheel drive electric off-road vehicle.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A drive device assembly for a two-wheel drive electric off-road vehicle includes a vehicle chassis, wherein circular through holes are respectively opened on the outer walls of both sides of the vehicle chassis, and a connecting sleeve and a fixed cylinder are respectively fixed on the inner walls of the circular through holes, the inner wall of the connecting sleeve is rotatably connected to a half-shaft, the inner wall of the fixed cylinder is fixed to a support column, an L-shaped connecting block is provided on one outer wall of the half-shaft and the support column, an outer wall of one side of the L-shaped connecting block is fixed to an outer wall of one side of the vehicle chassis, an outer wall of one side of the L-shaped connecting block is rotatably connected to a rotating plate, the inner wall of the rotating plate is rotatably connected to a rotating shaft, the half-shaft is transmission-connected to the outer wall of the corresponding rotating shaft, a driving wheel or a driven wheel is fixed on the outer wall of one side of the rotating shaft, the outer wall of the rotating shaft is rotatably connected to a guide block, a movable support rod is fixed on the outer wall of the top of the guide block, a support plate is fixed on the outer wall of one side of the movable support rod, an outer wall of one side of the support plate is slidably connected to a lifting plate, and the lifting plate is slidably connected to the outer wall of one side of the vehicle chassis.

[0007] Preferably, the inner wall of the vehicle chassis is provided with a driving mechanism, the outer wall at the top of the lifting plate is provided with a lifting mechanism, and the outer wall on one side of the support plate is provided with a pushing mechanism.

[0008] Further: the drive mechanism includes a drive motor, a control panel, a transmission and a self-locking differential. The drive motor is fixed on the bottom inner wall of the vehicle chassis, the control panel is fixed on one side outer wall of the drive motor, the transmission is arranged on one side outer wall of the drive motor, the self-locking differential is arranged on one side outer wall of the transmission, the half-shaft drive is connected to one side inner wall of the self-locking differential, and the drive motor is electrically connected to the control panel.

[0009] Further preferred: the lifting mechanism includes a mounting plate, a cylinder, a fixed plate, and a second airbag, the mounting plate is fixed to the top outer wall of the vehicle chassis, the cylinder is fixed to one side outer wall of the mounting plate, the fixed plate is fixed to one side outer wall of the vehicle chassis, the output shaft of the cylinder passes through the top outer wall of the fixed plate, the top outer wall of the second airbag is fixed to the bottom outer wall of the fixed plate, the bottom outer wall of the second airbag is fixed to the top outer wall of the lifting plate, and the cylinder is electrically connected to the control panel.

[0010] As a preferred embodiment of the present invention: the pushing mechanism includes a first airbag and an air guide tube, the first airbag is fixed on one side outer wall of the support plate, the air guide tube is inserted into one side outer wall of the first airbag, the air guide tube passes through one side outer wall of the lifting plate, and one side outer wall of the air guide tube is inserted into one side outer wall of the second airbag.

[0011] As a further preferred embodiment of the present invention, the outer wall of the connecting sleeve is rotatably connected to a guide plate, the outer wall on one side of the rotating shaft is rotatably connected to the outer wall on one side of the guide plate, and the guide plate is slidably connected to the outer wall on one side of the vehicle chassis.

[0012] As a further solution of the present invention: a fixing plate is fixed on the top outer wall of the lifting plate, and the fixing plate can be fixed on the outer wall of one side of the vehicle chassis; a support seat is fixed on the outer wall of the support column; the bottom outer wall of the support seat is fixed on the bottom inner wall of the vehicle chassis; and an air valve is provided on the outer wall of one side of the movable support rod.

[0013] On the basis of the above-mentioned solution: a group of fixing frames are fixed to the outer wall on one side of the vehicle chassis, and a baffle is fixed to the outer wall on one side of the guide plate.

[0014] Based on the above scheme, it is preferred that: the inner wall of one side of the fixed frame is rotatably connected to a threaded rod, the outer wall of the threaded rod is connected to a movable block through a thread, the outer wall of one side of the movable block is slidably connected to the inner wall of one side of the fixed frame, a stepper motor is fixed to the outer wall of one side of the fixed frame, the output shaft of the stepper motor passes through the outer wall of one side of the fixed frame, the output shaft of the stepper motor is connected to the outer wall of one side of the threaded rod through a coupling, an infrared sensor is provided on the outer wall of one side of the vehicle chassis, and the stepper motor and the infrared sensor are electrically connected to the control panel respectively.

[0015] The beneficial effects of the present invention are:

[0016] When it is necessary to travel on a mountain road with a large slope difference, the staff can control the pushing mechanism and the lifting mechanism at the same time. The pushing mechanism simultaneously pushes the movable support rod to move relative to one side of the vehicle chassis, pushing the driving wheel and the driven wheel to move at a relatively uniform speed. At the same time, the lifting mechanism pushes the lifting plate to move downward as a whole, so that the driven wheel and the driving wheel can respectively rotate downward on one side of the L-shaped connecting block through the rotating plate. When the rotating plate rotates downward ninety degrees, the pushing mechanism and the lifting mechanism stop running. At this time, the rotating plate moves from a horizontal state to a state vertical to the ground, thereby increasing the length of the bottom of the driving wheel and the driven wheel from the bottom of the vehicle chassis, and keeping the bottom of the vehicle chassis away from the ground without affecting the normal driving of the vehicle, thereby avoiding the bottom of the vehicle chassis from colliding with the road surface when driving on a road with a large slope difference.

[0017] When the driven wheel needs to be lifted upward, the control panel controls the cylinder to pull the lifting plate upward through the output shaft, driving the support plate on one side of the lifting plate to move upward, and pulling the driving wheel and the driven wheel upward through the movable support rod. When the lifting plate moves upward, it will squeeze the second airbag through the fixed plate, and the gas inside the second airbag will be filled into the first airbag through the air duct. After the first airbag expands, it will push the support plate on one side to move forward, allowing the driven wheel to rotate upward through the rotating plate, reducing the distance between the bottom of the vehicle chassis and the road surface. At the same time, the first airbag can cushion the moving movable support rod through its own elastic force, thereby improving the overall shock absorption effect of the drive device assembly.

[0018] When the driving wheel and the driven wheel are rotated to the appropriate angle through the lifting mechanism and the pushing mechanism, the fixing plate can be fixed to one side of the vehicle chassis by screws, so that the lifting plate as a whole is fixed to one side of the vehicle chassis, thereby improving the stability of the entire lifting and pushing mechanism. The staff can regularly open the air valve to inflate the first airbag and the second airbag to avoid the problem that the pushing mechanism and the lifting mechanism cannot work normally due to insufficient gas inside the first airbag and the second airbag.

[0019] The two fixed frames are arranged vertically. When the guide plate rotates upward or downward 90 degrees driven by the rotating shaft, it will collide with the fixed frame through the baffle. At this time, the fixed frame can limit the up and down rotation angles of the driving wheel and the driven wheel.

[0020] When the guide plate rotates upward along the shaft to a position parallel to the vehicle chassis, the guide plate will block the infrared sensor. At this time, the control panel will control the stepper motor on the side of the infrared sensor to rotate, thereby driving the movable block forward through the thread, allowing the L-shaped positioning rod at the bottom of the movable block to be inserted into the side of the baffle, thereby supporting the position of the guide plate and improving the stability of the shaft on one side of the guide plate during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a chassis elevation of a drive device assembly for a two-wheel drive electric off-road vehicle proposed in the present invention;

[0022] Figure 2 This is a schematic top view of the structure of a drive device assembly for a two-wheel drive electric off-road vehicle proposed by the present invention;

[0023] Figure 3 This is a schematic diagram of the drive wheel structure of a drive device assembly for a two-wheel drive electric off-road vehicle proposed by the present invention;

[0024] Figure 4 This is a schematic diagram of the driven wheel structure of a drive device assembly of a two-wheel drive electric off-road vehicle proposed by the present invention;

[0025] Figure 5 A schematic diagram of a chassis lowering of a drive device assembly of a two-wheel drive electric off-road vehicle proposed by the present invention;

[0026] Figure 6 This is a schematic diagram of the fixed frame structure of a drive device assembly of a two-wheel drive electric off-road vehicle proposed by the present invention;

[0027] Figure 7 This is a schematic diagram of the circuit flow of a drive device assembly for a two-wheel drive electric off-road vehicle proposed by the present invention.

[0028] In the figure: 1 vehicle chassis, 2 rotating plate, 3 movable support rod, 4 first airbag, 5 air valve, 6 driving wheel, 7 infrared sensor, 8 mounting plate, 9 cylinder, 10 fixed plate, 11 second airbag, 12 half shaft, 13 self-locking differential, 14 transmission, 15 support base, 16 support column, 17 control panel, 18 driving motor, 19 rotating shaft, 20 guide plate, 21 baffle, 22 L-shaped connecting block, 23 lifting plate, 24 threaded rod, 25 movable block, 26 fixing frame, 27 stepping motor, 28 L-shaped positioning rod, 29 air guide tube, 30 support plate, 31 fixing plate, 32 guide block, 33 connecting sleeve, 34 driven wheel, 35 fixing cylinder. DETAILED DESCRIPTION

[0029] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0030] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this patent.

[0032] In the description of this patent, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "set" should be understood in a broad sense. For example, they can refer to fixed connection or set, detachable connection or set, or integral connection or set. Those skilled in the art will understand the specific meanings of the above terms in this patent based on the specific circumstances.

[0033] Example 1:

[0034] A drive assembly for a two-wheel drive electric off-road vehicle, such as Figure 1-7As shown, it includes a vehicle chassis 1, wherein the outer walls on both sides of the vehicle chassis 1 are respectively provided with circular through holes, the inner walls of the circular through holes are respectively fixed with a connecting sleeve 33 and a fixing cylinder 35, the inner wall of the connecting sleeve 33 is rotatably connected to the half shaft 12, the inner wall of the fixing cylinder 35 is fixed with a support column 16, and an outer wall on one side of the half shaft 12 and the support column 16 is provided with an L-shaped connecting block 22, the outer wall on one side of the L-shaped connecting block 22 is fixed to the outer wall on one side of the vehicle chassis 1, and the outer wall on one side of the L-shaped connecting block 22 is rotatably connected to a rotating plate 2. The inner wall of the rotating plate 2 is rotatably connected to the rotating shaft 19, and the half shaft 12 is drivingly connected to the outer wall of the corresponding rotating shaft 19. A driving wheel 6 or a driven wheel 34 is fixed to the outer wall of one side of the rotating shaft 19. The outer wall of the rotating shaft 19 is rotatably connected to the guide block 32. The outer wall of the top of the guide block 32 is fixed to the movable support rod 3. A support plate 30 is fixed to the outer wall of one side of the movable support rod 3. The outer wall of one side of the support plate 30 is slidably connected to the lifting plate 23. The lifting plate 23 is slidably connected to the outer wall of one side of the vehicle chassis 1;

[0035] The inner wall of the vehicle chassis 1 is provided with a driving mechanism, the outer wall of the top of the lifting plate 23 is provided with a lifting mechanism, and the outer wall of one side of the support plate 30 is provided with a pushing mechanism; the driving mechanism drives the half-axles 12 on both sides to rotate in the same direction at the same time, and the half-axles 12 drive the rotating shaft 19 to rotate through the transmission belt, driving the driving wheel 6 on one side of the rotating shaft 19 to rotate, thereby driving the vehicle chassis 1 as a whole to move forward through the driving wheel 6, and travel on various road surfaces. When it is necessary to travel on a mountain road with a large gradient difference, the staff can control the operation of the pushing mechanism and the lifting mechanism at the same time, and the pushing mechanism simultaneously pushes the movable support rod 3 to move relatively on one side of the vehicle chassis 1, pushing the driving wheel 6 and the driven wheel 34 move at a relatively uniform speed, and at the same time, the lifting mechanism pushes the lifting plate 23 to move downward as a whole, so that the driven wheel 34 and the driving wheel 6 are respectively rotated downward on one side of the L-shaped connecting block 22 through the rotating plate 2. When the rotating plate 2 is rotated downward by ninety degrees, the pushing mechanism and the lifting mechanism stop running. At this time, the rotating plate 2 moves from a horizontal state to a state vertical to the ground, thereby increasing the distance between the bottom of the driving wheel 6 and the driven wheel 34 and the bottom of the vehicle chassis 1. Under the premise of not affecting the normal driving of the vehicle, the bottom of the vehicle chassis 1 can be kept away from the ground, avoiding the bottom of the vehicle chassis 1 from colliding with the road surface when driving on a road with a large slope difference.

[0036] like Figure 2As shown, the drive mechanism includes a drive motor 18, a control panel 17, a transmission 14 and a self-locking differential 13. The drive motor 18 is fixed to the bottom inner wall of the vehicle chassis 1 by screws, the control panel 17 is fixed to one side outer wall of the drive motor 18 by screws, the transmission 14 is arranged on one side outer wall of the drive motor 18, the self-locking differential 13 is arranged on one side outer wall of the transmission 14, the half shaft 12 is transmission-connected to one side inner wall of the self-locking differential 13, the drive motor 18 is electrically connected to the control panel 17; the output shaft of the drive motor 18 is connected to the transmission 14, and the self-locking differential 13 ... The gear shaft inside the speed reducer 14 outputs power to the double gear shaft inside the self-locking differential 13, thereby driving the half-shafts 12 on both sides of the self-locking differential 13 to rotate stably. At the same time, when the vehicle is traveling in the wild or on a bad road, when the drive wheel 6 is stuck in a pit and idling and slipping, since a differential lock is provided inside the self-locking differential 13, the differential lock can lock the self-locking differential 13, so that the two drive wheels 6 of the vehicle become rigidly connected, allowing the other drive wheel 6 that is not stuck in the pit to roll normally on the road, allowing the vehicle to quickly climb out of the pit, thereby allowing the vehicle to travel stably in the wild or on a bad road.

[0037] like Figure 1 、 Figure 5 As shown, the lifting mechanism includes a mounting plate 8, a cylinder 9, a fixing plate 10, and a second airbag 11. The mounting plate 8 is fixed to the top outer wall of the vehicle chassis 1 by screws, the cylinder 9 is fixed to one side outer wall of the mounting plate 8 by screws, the fixing plate 10 is fixed to one side outer wall of the vehicle chassis 1 by screws, the output shaft of the cylinder 9 passes through the top outer wall of the fixing plate 10, the top outer wall of the second airbag 11 is fixed to the bottom outer wall of the fixing plate 10, the bottom outer wall of the second airbag 11 is fixed to the top outer wall of the lifting plate 23, and the cylinder 9 is electrically connected to the control panel 17;

[0038] The pushing mechanism includes a first airbag 4 and an air guide tube 29. The first airbag 4 is fixed on the outer wall of one side of the support plate 30. The air guide tube 29 is plugged into the outer wall of one side of the first airbag 4. The air guide tube 29 passes through the outer wall of one side of the lifting plate 23. The outer wall of one side of the air guide tube 29 is plugged into the outer wall of one side of the second airbag 11. When it is necessary to lift the driven wheel 34 upward, the control panel 17 controls the cylinder 9 to pull the lifting plate 23 upward through the output shaft, thereby driving the support plate 30 on one side of the lifting plate 23 to move upward, and pulling the driving wheel 6 and the driven wheel 34 through the movable support rod 3. The driven wheel 34 moves upward, and when the lifting plate 23 moves upward, it will squeeze the second airbag 11 through the fixed plate 10, so that the gas inside the second airbag 11 is filled into the first airbag 4 through the air duct 29. After the first airbag 4 expands, it will push the support plate 30 on one side to move forward, so that the driven wheel 34 can rotate upward through the rotating plate 2, thereby reducing the distance between the bottom of the vehicle chassis 1 and the road surface. At the same time, the first airbag 4 can cushion the moving movable support rod 3 through its own elastic force, thereby improving the overall shock absorption effect of the drive device assembly.

[0039] like Figure 3 、 Figure 4 As shown, the outer wall of the connecting sleeve 33 is rotatably connected to the guide plate 20, the outer wall of one side of the rotating shaft 19 is rotatably connected to the outer wall of one side of the guide plate 20, and the guide plate 20 is slidably connected to the outer wall of one side of the vehicle chassis 1; when the rotating plate 2 drives the driven wheel 34 and the driving wheel 6 on one side to rotate up and down, the guide plate 20 on the side of the rotating shaft 19 will also rotate up and down together, thereby improving the stability of the rotating shaft 19 when it moves up and down with the driving wheel 6 and the driven wheel 34.

[0040] like Figure 2 、 Figure 5 As shown, a fixing plate 31 is fixed to the top outer wall of the lifting plate 23, and the fixing plate 31 can be fixed to the outer wall of one side of the vehicle chassis 1 by screws, and a support seat 15 is fixed to the outer wall of the support column 16, and the bottom outer wall of the support seat 15 is fixed to the bottom inner wall of the vehicle chassis 1 by screws, and an air valve 5 is provided on the outer wall of one side of the movable support rod 3; when the driving wheel 6 and the driven wheel 34 are rotated to a suitable angle through the lifting mechanism and the pushing mechanism, the fixing plate 31 can be fixed to one side of the vehicle chassis 1 by screws, so that the lifting plate 23 is fixed to one side of the vehicle chassis 1 as a whole, thereby improving the stability of the entire lifting and pushing mechanism, and the staff can regularly open the air valve 5 to inflate the first airbag 4 and the second airbag 11 to avoid the problem that the pushing mechanism and the lifting mechanism cannot work normally due to insufficient gas inside the first airbag 4 and the second airbag 11.

[0041] like Figure 6As shown, a set of fixing frames 26 are fixed to the outer wall of one side of the vehicle chassis 1 by screws, and a baffle 21 is fixed to the outer wall of one side of the guide plate 20; the two fixing frames 26 are vertically arranged between each other, and when the guide plate 20 rotates upward or downward by ninety degrees driven by the rotating shaft 19, a collision will occur between the baffle 21 and the fixing frame 26 respectively. At this time, the fixing frame 26 can limit the angle of rotation of the driving wheel 6 and the driven wheel 34.

[0042] When this embodiment is in use, the driving mechanism drives the half-shafts 12 on both sides to rotate in the same direction at the same time. The half-shafts 12 drive the rotating shaft 19 to rotate through the transmission belt, driving the driving wheel 6 on one side of the rotating shaft 19 to rotate, thereby driving the vehicle chassis 1 to move forward as a whole through the driving wheel 6 and travel on various road surfaces. When it is necessary to travel on a mountain road with a large slope difference, the staff can control the operation of the pushing mechanism and the lifting mechanism at the same time. The pushing mechanism simultaneously pushes the movable support rod 3 to move relative to one side of the vehicle chassis 1, pushing the driving wheel 6 and the driven wheel 34 to move at a relatively uniform speed. At the same time, the lifting mechanism pushes the lifting plate 23 to move downward as a whole. When the rotating plate 2 rotates downward ninety degrees, the pushing mechanism and the lifting mechanism stop running. At this time, the rotating plate 2 moves from a horizontal state to a state perpendicular to the ground, increasing the length of the bottom of the driving wheel 6 and the driven wheel 34 from the bottom of the vehicle chassis 1.

[0043] When the driven wheel 34 needs to be lifted upward, the control panel 17 controls the cylinder 9 to pull the lifting plate 23 upward through the output shaft, thereby driving the support plate 30 on one side of the lifting plate 23 to move upward, and pulling the driving wheel 6 and the driven wheel 34 upward through the movable support rod 3. When the lifting plate 23 moves upward, the second airbag 11 will be squeezed through the fixed plate 10, so that the gas inside the second airbag 11 is filled into the first airbag 4 through the air guide tube 29. After the first airbag 4 expands, it will push the support plate 30 on one side to move forward, so that the driven wheel 34 can rotate upward through the rotating plate 2, thereby reducing the distance between the bottom of the vehicle chassis 1 and the road surface.

[0044] The output shaft of the drive motor 18 is connected to the transmission 14, and the power is output to the double gear shaft inside the self-locking differential 13 through the gear shaft inside the transmission 14, thereby driving the half-shafts 12 on both sides of the self-locking differential 13 to rotate stably. At the same time, when the vehicle is driving in the wild or on a bad road, when the drive wheel 6 is stuck in a pit and idling and slipping, since a differential lock is provided inside the self-locking differential 13, the differential lock can lock the self-locking differential 13, so that the two drive wheels 6 of the vehicle become rigidly connected, allowing the other drive wheel 6 that is not stuck in the pit to roll normally on the road, allowing the vehicle to quickly climb out of the pit, so that the vehicle can drive stably in the wild or on a bad road.

[0045] Example 2:

[0046] A drive assembly for a two-wheel drive electric off-road vehicle, such as Figure 4 、 Figure 6 As shown, this embodiment makes the following improvements on the basis of embodiment 1: the inner wall of one side of the fixed frame 26 is rotatably connected to the threaded rod 24, the outer wall of the threaded rod 24 is connected to the movable block 25 by a thread, the outer wall of one side of the movable block 25 is slidably connected to the inner wall of one side of the fixed frame 26, the outer wall of one side of the fixed frame 26 is fixed with a stepper motor 27 by a screw, the output shaft of the stepper motor 27 passes through the outer wall of one side of the fixed frame 26, and the output shaft of the stepper motor 27 is connected to the outer wall of one side of the threaded rod 24 by a coupling, an infrared sensor 7 is provided on the outer wall of one side of the vehicle chassis 1, and the stepper motor 27 and the infrared sensor 7 are electrically connected to the control panel 17 respectively; when the guide plate 20 follows the rotating shaft 19 to rotate upward to a position parallel to the vehicle chassis 1, the guide plate 20 will block the infrared sensor 7, and at this time the control panel 17 will control the stepper motor 27 on the side of the infrared sensor 7 to rotate, thereby The movable block 25 moves forward, allowing the L-shaped positioning rod 28 at the bottom of the movable block 25 to be inserted into one side of the baffle 21, thereby supporting the position of the guide plate 20 and improving the stability of the rotating shaft 19 on one side of the guide plate 20 during rotation. When the vehicle chassis 1 needs to be raised, the control panel 17 first controls the corresponding stepper motor 27 to reset, releases the fixation of the baffle 21 by the L-shaped positioning rod 28, and then drives the guide plate 20 to rotate downward ninety degrees. At this time, the infrared sensor 7 on one side of the vehicle chassis 1 will no longer be blocked. At this time, the control panel 17 will control the stepper motor 27 on the side of another fixed frame 26 perpendicular to the previous fixed frame 26 to operate, driving another L-shaped positioning rod 28 to move upward and get stuck on another baffle 21 on one side of the guide plate 20, thereby clamping and limiting the guide plate 20 perpendicular to the bottom of the vehicle chassis 1, thereby improving the stability of the entire drive device assembly of the vehicle chassis 1 after raising and lowering.

[0047] When this embodiment is in use, the control panel 17 controls the corresponding stepper motor 27 to rotate, driving the movable block 25 forward through the thread, so that the L-shaped positioning rod 28 at the bottom of the movable block 25 is inserted into the side of the corresponding baffle 21, supporting the position of the guide plate 20 and improving the stability of the rotating shaft 19 on one side of the guide plate 20 during rotation.

[0048] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A drive device assembly for a two-wheel drive electric off-road vehicle, comprising a vehicle chassis (1), characterized in that: Circular through holes are respectively formed on the outer walls of both sides of the vehicle chassis (1), and a connecting sleeve (33) and a fixing cylinder (35) are respectively fixed on the inner walls of the circular through holes. The inner wall of the connecting sleeve (33) is rotatably connected to the half shaft (12), and the inner wall of the fixing cylinder (35) is fixed to the support column (16). An L-shaped connecting block (22) is provided on one outer wall of the half shaft (12) and the support column (16). One outer wall of the L-shaped connecting block (22) is fixed to one outer wall of the vehicle chassis (1), and one outer wall of the L-shaped connecting block (22) is rotatably connected to the rotating plate (2). The rotating plate (2) The inner wall is rotatably connected to a rotating shaft (19), the half shaft (12) is transmission-connected to the outer wall of the corresponding rotating shaft (19), a driving wheel (6) or a driven wheel (34) is fixed to the outer wall of one side of the rotating shaft (19), the outer wall of the rotating shaft (19) is rotatably connected to a guide block (32), a movable support rod (3) is fixed to the outer wall of the top of the guide block (32), a support plate (30) is fixed to the outer wall of one side of the movable support rod (3), a lifting plate (23) is slidably connected to the outer wall of one side of the support plate (30), and the lifting plate (23) is slidably connected to the outer wall of one side of the vehicle chassis (1); The inner wall of the vehicle chassis (1) is provided with a driving mechanism, the top outer wall of the lifting plate (23) is provided with a lifting mechanism, and the outer wall of one side of the support plate (30) is provided with a pushing mechanism; The lifting mechanism includes a mounting plate (8), a cylinder (9), a fixing plate (10), and a second airbag (11), wherein the mounting plate (8) is fixed to the top outer wall of the vehicle chassis (1), the cylinder (9) is fixed to one side outer wall of the mounting plate (8), the fixing plate (10) is fixed to one side outer wall of the vehicle chassis (1), the output shaft of the cylinder (9) passes through the top outer wall of the fixing plate (10), the top outer wall of the second airbag (11) is fixed to the bottom outer wall of the fixing plate (10), the bottom outer wall of the second airbag (11) is fixed to the top outer wall of the lifting plate (23), and the cylinder (9) is electrically connected to the control panel (17); The pushing mechanism includes a first airbag (4) and an air guide tube (29), wherein the first airbag (4) is fixed to an outer wall of one side of the support plate (30), and the air guide tube (29) is plugged into an outer wall of one side of the first airbag (4). The air guide tube (29) passes through an outer wall of one side of the lifting plate (23), and an outer wall of one side of the air guide tube (29) is plugged into an outer wall of one side of the second airbag (11).

2. The driving device assembly of a two-wheel drive electric off-road vehicle according to claim 1, characterized in that: The driving mechanism includes a driving motor (18), a control panel (17), a transmission (14) and a self-locking differential (13), wherein the driving motor (18) is fixed on the bottom inner wall of the vehicle chassis (1), the control panel (17) is fixed on one side outer wall of the driving motor (18), the transmission (14) is arranged on one side outer wall of the driving motor (18), the self-locking differential (13) is arranged on one side outer wall of the transmission (14), the half shaft (12) is transmission-connected to one side inner wall of the self-locking differential (13), and the driving motor (18) is electrically connected to the control panel (17).

3. The driving device assembly of a two-wheel drive electric off-road vehicle according to claim 1, characterized in that: The outer wall of the connecting sleeve (33) is rotatably connected to a guide plate (20), the outer wall on one side of the rotating shaft (19) is rotatably connected to the outer wall on one side of the guide plate (20), and the guide plate (20) is slidably connected to the outer wall on one side of the vehicle chassis (1).

4. The driving device assembly of a two-wheel drive electric off-road vehicle according to claim 1, characterized in that: A fixing plate (31) is fixed to the top outer wall of the lifting plate (23), and the fixing plate (31) can be fixed to the outer wall of one side of the vehicle chassis (1). A support seat (15) is fixed to the outer wall of the support column (16), and the bottom outer wall of the support seat (15) is fixed to the bottom inner wall of the vehicle chassis (1). An air valve (5) is provided on the outer wall of one side of the movable support rod (3).

5. The driving device assembly of a two-wheel drive electric off-road vehicle according to claim 4, characterized in that: A set of fixing frames (26) is fixed to the outer wall of one side of the vehicle chassis (1), and a baffle (21) is fixed to the outer wall of one side of the guide plate (20).

6. The driving device assembly of a two-wheel drive electric off-road vehicle according to claim 5, characterized in that: The inner wall of one side of the fixed frame (26) is rotatably connected to a threaded rod (24), the outer wall of the threaded rod (24) is threadedly connected to a movable block (25), the outer wall of one side of the movable block (25) is slidably connected to the inner wall of one side of the fixed frame (26), a stepper motor (27) is fixed to the outer wall of one side of the fixed frame (26), the output shaft of the stepper motor (27) passes through the outer wall of one side of the fixed frame (26), and the output shaft of the stepper motor (27) is connected to the outer wall of one side of the threaded rod (24) through a coupling, an infrared sensor (7) is provided on the outer wall of one side of the vehicle chassis (1), and the stepper motor (27) and the infrared sensor (7) are respectively electrically connected to the control panel (17).

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