Double-steering electric four-wheel-drive hand-cranking integrated machine

Abstract

The invention relates to the technical field of steering, in particular to a double-steering electric four-wheel-drive hand-cranking all-in-one machine which comprises a chassis, a front axle and a rear axle, the front axle and the rear axle are installed on the front side and the rear side of the chassis, each of the front axle and the rear axle comprises two symmetrically-arranged wheel parts and a connecting rod connected between the two wheel parts, and the wheel parts are rotationally connected with the chassis; a transmission rod is connected between the front axle and the rear axle, one end of the transmission rod is rotationally connected to one wheel portion of the front axle, the other end of the transmission rod is rotationally connected to one wheel portion of the rear axle, and the two wheel portions connected to the two ends of the transmission rod are arranged diagonally. The transmission rod is connected between the two diagonally arranged wheel parts, the four wheel parts form a linkage whole, the rotating directions of the wheel parts in the front axle and the rear axle can be opposite, the steering angle is multiplied, and the turning radius is reduced; the driving assembly is arranged on the front axle and can drive one of the wheel parts to rotate, so that steering of the agricultural machine is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of steering, in particular to a dual-steering electric four-wheel drive hand-cranked integrated machine. Background Art

[0002] The dual-steering electric four-wheel drive hand-cranked integrated machine is an agricultural machine. Compared with traditional fuel-driven vehicles, the electric four-wheel drive omits complex components such as gearboxes and transfer cases, and has a more streamlined structure. It is mainly divided into three driving modes: single motor drive, dual motor drive and hub motor drive. Single motor drive means that only one motor is installed, located between the engine and the gearbox, and four-wheel drive is achieved by relying on the drive shaft; dual motor drive is to install a motor on each front and rear axle, and achieve four-wheel drive through a traditional differential; the hub motor uses the wheel hub as the rotor and the bearing as the stator to drive the vehicle.

[0003] However, the existing agricultural machinery only relies on the front wheels rotating around the steering knuckle to achieve steering, and the steering angle is small and the steering radius is large. Summary of the invention

[0004] The present invention aims to solve the problem that the existing agricultural machinery in the prior art only relies on the front wheels to rotate around the steering knuckle to achieve steering, the steering angle is small, and the steering radius is large. The present invention provides a dual-steering electric four-wheel drive hand-cranked integrated machine. The specific technical solution is as follows:

[0005] A dual-steering electric four-wheel drive hand-cranked integrated machine includes a chassis and a front axle and a rear axle installed on the front and rear sides of the chassis, the front axle and the rear axle each include two symmetrically arranged wheel portions and a connecting rod connected between the two wheel portions, the wheel portions are rotatably connected to the chassis, a transmission rod is connected between the front axle and the rear axle, one end of the transmission rod is rotatably connected to a wheel portion of the front axle, and the other end of the transmission rod is rotatably connected to a wheel portion of the rear axle, and the two wheel portions connected to the two ends of the transmission rod are diagonally arranged.

[0006] As a further technical solution of the present invention, the chassis includes two horizontal frames arranged in parallel and a vertical frame connected between the two horizontal frames, and both ends of the horizontal frame are provided with steering balls.

[0007] As a further technical solution of the present invention, the wheel part includes a block looped outside the steering ball, a wheel connected to the other end of the block, and an extension rod installed on the top of the block, and the connecting rod is rotatably installed on the end of the extension rod away from the chassis.

[0008] As a further technical solution of the present invention, the wheel is evenly provided with a plurality of groups of paddles along the circumferential direction.

[0009] As a further technical solution of the present invention, a driving assembly is provided on the front axle, and the driving assembly includes a bracket installed on the cross frame, a sliding sleeve connected to the other end of the bracket, a rack plate is slidably connected in the sliding sleeve, the other end of the rack plate is rotatably connected to a driving arm, the other end of the driving arm is rotatably connected to an extension rod, a gear 1 meshing with the rack plate is rotatably provided in the sliding sleeve, and a rotating rod is coaxially connected to the gear 1.

[0010] As a further technical solution of the present invention, a fixed plate is connected to the top of the bracket, an output motor is installed on the fixed plate, the output end of the output motor passes through the fixed plate and is connected to gear three, gear two is coaxially connected to the rotating rod, and gear two meshes with gear three.

[0011] The beneficial effects of this application are as follows:

[0012] (1) In the present application, a transmission rod is connected between two diagonally arranged wheels to form a linked whole with four wheels, and the wheels in the front axle and the rear axle can rotate in opposite directions, thereby doubling the steering angle and reducing the turning radius.

[0013] (2) In the present application, by providing a driving assembly on the front axle, one of the wheels can be driven to rotate, thereby realizing the steering of the agricultural machinery and realizing automatic steering based on electric drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The overall structural diagram of the dual-steering electric four-wheel drive hand-cranked integrated machine is shown;

[0015] Figure 2 A schematic diagram of the structure of the transmission rod is shown;

[0016] Figure 3 A schematic diagram of the structure of the chassis is shown;

[0017] Figure 4 shows a schematic structural diagram of the rear axle;

[0018] Figure 5 A schematic diagram of the structure of the wheel portion is shown;

[0019] Figure 6 A schematic diagram of the structure of the front axle and the drive assembly is shown;

[0020] Figure 7 A schematic diagram of the structure of the drive assembly is shown.

[0021] Description of the drawings: 100, chassis; 110, cross frame; 111, steering ball; 120, vertical frame; 200a, front axle; 200b, rear axle; 210, wheel; 211, bushing; 212, wheel; 213, extension rod; 214, paddle; 220, connecting rod; 300, transmission rod; 400, driving assembly; 410, bracket; 420, sliding sleeve; 430, rack plate; 440, driving arm; 450, gear one; 460, rotating rod; 461, gear two; 470, fixing plate; 480, output motor; 490, gear three. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0023] Figure 1 The overall structure diagram of the dual-steering electric four-wheel drive hand-cranked integrated machine is shown; Figure 1 In the figure, the dual-steering electric four-wheel drive hand-cranked integrated machine includes a chassis 100 and a front axle 200a and a rear axle 200b installed on the front and rear sides of the chassis 100. The front axle 200a and the rear axle 200b are both in contact with the ground and support the chassis 100 off the ground.

[0024] Figure 2 shows a schematic structural diagram of the transmission rod 300; Figure 2 In the figure, a transmission rod 300 is connected between the front axle 200a and the rear axle 200b, and the transmission rod 300 is diagonally arranged between the front axle 200a and the rear axle 200b; since the transmission rod 300 is diagonally arranged between the front axle 200a and the rear axle 200b, when the front axle 200a is tractioned and turns, the rear axle 200b can be driven to turn through the transmission rod 300, and the rotation directions of the front axle 200a and the rear axle 200b are opposite, so that the cooperation between the front axle 200a and the rear axle 200b can double the steering angle and reduce the turning radius.

[0025] Figure 3 shows a schematic structural diagram of the chassis 100; Figure 3 In the figure, the chassis 100 includes two parallel transverse frames 110 and a vertical frame 120 connected between the two transverse frames 110, and both ends of the transverse frames 110 are provided with steering balls 111; in actual use, the transverse frame 110 and the vertical frame 120 are combined to form a bottom bracket, the two transverse frames 110 correspond to the front axle 200a and the rear axle 200b respectively, and the four steering balls 111 can correspond to the four wheel parts.

[0026] Figure 4 shows a schematic structural diagram of the rear axle 200b; Figure 4In the embodiment, the front axle 200a and the rear axle 200b each include two symmetrically arranged wheel portions 210 and a connecting rod 220 connected between the two wheel portions 210. The wheel portions 210 are rotatably connected to the chassis 100. One end of the transmission rod 300 is rotatably connected to a wheel portion 210 of the front axle 200a. The other end of the transmission rod 300 is rotatably connected to a wheel portion 210 of the rear axle 200b. The two wheel portions 210 connected to both ends of the transmission rod 300 are arranged diagonally. Since the wheel portions 210 are rotatably connected to the chassis 100, the wheel portions 210 can rotate along the rotation node when driven by an external force, and the wheel portions 210 can rotate along the rotation node when driven by an external force. Since the two wheel portions 210 are connected by the connecting rod 220, the two wheel portions 210 connected by the connecting rod 220 interfere with each other and rotate synchronously to achieve steering; at the same time, a wheel portion 210 in the front axle 200a is connected to a wheel portion 210 in the rear axle 200b by the transmission rod 300, so that the four wheel portions 210 form a whole that can interfere with each other, and the transmission rod 300 is diagonally arranged, so that the wheel portion 210 in the front axle 200a and the wheel portion 210 in the rear axle 200b rotate in opposite directions, thereby doubling the steering angle and reducing the turning radius.

[0027] Figure 5 shows a schematic structural diagram of the wheel portion 210; Figure 5 In the figure, the wheel part 210 includes a sleeve block 211 which is sleeved outside the steering ball 111, a wheel 212 which is connected to the other end of the sleeve block 211, and an extension rod 213 which is installed on the top of the sleeve block 211, and a connecting rod 220 which is rotatably installed on the end of the extension rod 213 which is away from the chassis 100; the sleeve block 211 and the steering ball 111 can make the wheel part 210 and the cross frame 110 universally connected, that is, the wheel part 210 can rotate relative to the cross frame 110, and the four wheels 212 can form a supporting plane for the chassis 100, and the connecting rod 220 rotates on the side away from the cross frame 110, which can avoid interference with the transmission rod 300; the wheel 212 is evenly provided with a plurality of groups of paddles 214 along the circumferential direction; the arrangement of the paddles 214 can be applied to the complex terrain in the farmland to ensure the walking effect.

[0028] Figure 6 A schematic diagram of the structure of the front axle 200a and the drive assembly 400 is shown; Figure 7 shows a schematic structural diagram of the drive assembly 400; Figure 6 and Figure 7In the embodiment, a driving assembly 400 is provided on the front axle 200a. The driving assembly 400 includes a bracket 410 installed on the cross frame 110, a sleeve 420 connected to the other end of the bracket 410, a rack plate 430 is slidably connected in the sleeve 420, the other end of the rack plate 430 is rotatably connected to a driving arm 440, the other end of the driving arm 440 is rotatably connected to the extension rod 213, a gear 1 450 is rotatably provided in the sleeve 420 for meshing with the rack plate 430, a rotating rod 460 is coaxially connected to the gear 1 450; the rotating rod 460 is driven to rotate, so that the gear 1 450 rotates and drives the rack plate 430 to slide in the sleeve 420, and the driving arm 440 is pulled by the rack plate 430. Since the other end of the driving arm 440 is connected to the extension rod 213, On the extension rod 213, when the driving arm 440 is driven by the rack plate 430 to move, it can drive the wheel part 210 to rotate, so that the four wheel parts 210 all make corresponding turns; a fixed plate 470 is connected to the top of the bracket 410, and an output motor 480 is installed on the fixed plate 470. The output end of the output motor 480 passes through the fixed plate 470 and is connected to a gear three 490. A gear two 461 is coaxially connected to the rotating rod 460, and the gear two 461 meshes with the gear three 490; the output motor 480 is started, and the output end of the output motor 480 drives the gear three 490 to rotate, thereby driving the gear two 461 and the rotating rod 460 to rotate, thereby realizing an electric control automatic steering based on the output motor 480.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. A dual-steering electric four-wheel drive hand-cranked integrated machine, comprising a chassis (100) and a front axle (200a) and a rear axle (200b) installed on the front and rear sides of the chassis (100), wherein the front axle (200a) and the rear axle (200b) each comprise two symmetrically arranged wheel portions (210) and a connecting rod (220) connected between the two wheel portions (210), wherein the wheel portions (210) are rotatably connected to the chassis (100), and characterized in that: A transmission rod (300) is connected between the front axle (200a) and the rear axle (200b); one end of the transmission rod (300) is rotatably connected to a wheel portion (210) of the front axle (200a); the other end of the transmission rod (300) is rotatably connected to a wheel portion (210) of the rear axle (200b); and the two wheel portions (210) connected to the two ends of the transmission rod (300) are arranged diagonally.

2. The dual-steering electric four-wheel drive hand-cranked integrated machine according to claim 1, characterized in that: The chassis (100) comprises two horizontal frames (110) arranged in parallel and a vertical frame (120) connected between the two horizontal frames (110), and both ends of the horizontal frame (110) are provided with steering balls (111).

3. The dual-steering electric four-wheel drive hand-cranked all-in-one machine according to claim 2, characterized in that: The wheel portion (210) comprises a sleeve block (211) sleeved outside the steering ball (111), a wheel (212) connected to the other end of the sleeve block (211), and an extension rod (213) installed on the top of the sleeve block (211), and the connecting rod (220) is rotatably installed on one end of the extension rod (213) away from the chassis (100).

4. The dual-steering electric four-wheel drive hand-cranked integrated machine according to claim 3, characterized in that: The wheel (212) is evenly provided with a plurality of groups of paddles (214) along the circumferential direction.

5. The dual-steering electric four-wheel drive hand-cranked integrated machine according to claim 4, characterized in that: The front axle (200a) is provided with a driving assembly (400), the driving assembly (400) comprising a bracket (410) mounted on a cross frame (110), a sliding sleeve (420) connected to the other end of the bracket (410), a rack plate (430) being slidably connected in the sliding sleeve (420), the other end of the rack plate (430) being rotatably connected to a driving arm (440), the other end of the driving arm (440) being rotatably connected to an extension rod (213), a gear 1 (450) meshing with the rack plate (430) being rotatably provided in the sliding sleeve (420), and a rotating rod (460) being coaxially connected to the gear 1 (450).

6. The dual-steering electric four-wheel drive hand-cranked integrated machine according to claim 5, characterized in that: The top of the bracket (410) is connected to a fixing plate (470), an output motor (480) is mounted on the fixing plate (470), an output end of the output motor (480) passes through the fixing plate (470) and is connected to a gear three (490), the rotating rod (460) is coaxially connected to a gear two (461), and the gear two (461) meshes with the gear three (490).

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