Electric drive control device and automatic driving agricultural machine

Abstract

The invention relates to the field of automatic driving and unmanned driving of agricultural machinery, in particular to an electric drive control device and an automatic driving agricultural machinery. In an automatic driving or auxiliary driving system, the electric drive control device with a screen is replaced, and the electric drive control device specifically comprises a motor and a steering wheel which are arranged on a steering column of the agricultural machinery; a display screen is arranged on the steering wheel and does not rotate along with the steering wheel, a panel module and an electric drive control module in the system are integrated, the integration level is high, operation is convenient, and related modules such as an agricultural machine horn, an instrument panel and vehicle information can be secondarily developed and integrated on a panel. Safety performance of agricultural machinery is greatly improved, and potential safety hazards are reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the field of agricultural machinery automatic driving and unmanned driving, and particularly relates to an electric drive control device and an automatic driving agricultural machine. BACKGROUND

[0002] With the continuous improvement of the automation degree of agricultural machinery in China, agricultural machinery is used to replace manual farming, which greatly improves the farming efficiency of agriculture. In recent years, more and more agricultural machinery is equipped with automatic driving systems or auxiliary driving systems. In the field of agricultural machinery automatic driving or auxiliary driving, the control of the agricultural machinery is usually achieved by driving the rotation of the steering column of the agricultural machinery through an electric drive control device, so as to drive the steering and rotation of the agricultural machinery. In this solution, a display screen is an important component, and the display screen is usually fixed in the cab of the agricultural machinery and is far away from the steering column of the agricultural machinery. During the operation of the automatic driving or auxiliary driving system, the driver needs to look up at the display screen or stretch out the hand to click the display screen. In this operation, it is particularly inconvenient, and the driver even needs to get up to perform the operation, which may cause a risk of personal safety. SUMMARY

[0003] The application provides an electric drive control device which can simply and effectively turn on the horn circuit of the vehicle body to make the horn of the vehicle body emit sound, and meanwhile, the electric drive control device will not be easily eroded and affected by the harsh environment such as wind, sand and rain in the agricultural field.

[0004] The application aims to provide an electric drive control device and an automatic driving agricultural machine to solve the problems in the background.

[0005] In order to solve the above technical problems, the application provides the following technical scheme. An electric drive control device comprises a motor and a steering wheel arranged on an agricultural machinery steering column, and a display screen is arranged on the steering wheel, and the display screen does not rotate with the steering wheel. This design does not exist in the prior art and the market. Under the premise of basically not increasing the cost, the user experience and driving safety are improved, and the design has unexpected technical effects.

[0006] Preferably, the display screen is inclined by 10 degrees. The inclination of 10 degrees is an ergonomic design, which is convenient for the user to operate and watch.

[0007] Preferably, the motor is a hollow cup motor, the hollow cup motor comprises a shell and a core, the core is fixedly connected with the agricultural machinery steering column, and the shell is fixed on the agricultural machinery. The hollow cup motor saves the modification cost of the original agricultural machinery, has a small size, does not additionally occupy the space of the cab, and improves the driving experience and modification cost of the user.

[0008] Preferably, the motor is connected with the agricultural machine steering column through a motor connecting piece, thereby controlling the direction of the agricultural machine; the motor connecting piece comprises a first connecting part and a second connecting part, the first connecting part connects the core with the agricultural machine steering column, and the second connecting part is fixed at one end of the shell and the other end of the agricultural machine.

[0009] Preferably, a fixing piece is arranged above the shell, the fixing piece comprises a stationary part and a rotating part, the stationary part is fixed above the display screen, and the rotating part is connected with the steering wheel and the core. The fixing piece is provided with the stationary part and the rotating part, so that the steering wheel can rotate normally and the display screen does not rotate, thereby greatly improving the driving safety and the operation convenience.

[0010] Preferably, the fixing piece is provided with a bearing inner position and a bearing outer position, the rotating part comprises a first bearing arranged at the bearing inner position and a second bearing arranged at the bearing outer position, the first bearing is internally provided with an internal gear, the internal gear is fixedly connected with the core, and the second bearing is provided with an external gear disc, and the external gear disc is fixedly connected with the steering wheel. The internal gear is engaged with the external gear disc and is not coaxial. The non-concentric shaft arrangement is also known as eccentric gear arrangement, and the stationary part is arranged at the gap between the non-engagement part of the internal gear and the external gear disc, so that the steering wheel can rotate normally, the display screen mounted on the stationary part does not rotate, and the structure has low cost, convenient maintenance and unexpected technical effects.

[0011] Preferably, a connecting spline is arranged above the core, and the internal gear is provided with an internal groove matched with the connecting spline. The connecting spline facilitates the installation and assembly of the internal gear and the core, improves the installation efficiency, and is convenient for disassembly and maintenance.

[0012] Preferably, the stationary part is arranged between the bearing inner position and the bearing outer position. The space of the fixing piece is reasonably utilized, and the stationary part is arranged on the outer side of the bearing outer position, thereby saving space and having unexpected technical effects.

[0013] Preferably, the internal gear is provided with gear pieces at the upper part, specifically two gear pieces, and the gear pieces are connected with the internal gear through U-shaped springs. The gear pieces reduce the return difference in the gear engagement rotation process, are fixedly connected with the internal gear through the U-shaped springs, do not occupy additional space, reduce the cost, and improve the installation efficiency.

[0014] Preferably, the inner ring diameter of the steering wheel is smaller than the outer ring diameter of the second bearing. Through this design, the firmness of the steering wheel installation is improved, the steering wheel and the outer gear disc sandwich the second bearing, and are fixed integrally through the bolt, the structure is firm and does not shake, the inner ring of the steering wheel is clamped at the bottom of the second bearing, so that the lower part of the two is connected without additional fixing structure, the cost is saved, and the installation efficiency is improved.

[0015] Preferably, the fixed part is provided with a partition plate above the first bearing and the second bearing. The function of the partition plate is to fix the first bearing and the second bearing on the fixed part. This design facilitates bearing installation and replacement, and the partition plate presses down on the bearing to avoid falling off during rotation.

[0016] Preferably, the inner gear is provided with a snap spring below the first bearing. The snap spring facilitates the fixation of the inner gear and the first bearing, improves the installation efficiency, and is convenient to replace.

[0017] Preferably, the static part is a display screen support. The display screen support can adapt to screens of different sizes and different installation angles, improving the compatibility of the equipment.

[0018] Preferably, the display screen support reserves a wiring space. The wiring between the display and the agricultural machine is realized through the reserved wiring space, improving the appearance of the equipment. The built-in wiring also reduces the risk of line breakage and accidental contact with the cable, which can damage the equipment, improving the overall safety of the equipment. The existing technology has a safety hazard of exposed display screen lines, which is eliminated in the present application, improving the overall safety of the equipment.

[0019] Preferably, a shade is arranged above the display screen support. The shade can prevent dust, and the shade outlet and the display screen inlet are provided with a gland, and the gland is threaded. The cable is threaded out from the inside of the shade, avoiding exposure to the outside and being easily damaged.

[0020] Preferably, a display screen fixing frame is arranged above the shade. The display screen fixing frame can be adjusted in angle, facilitating users to adjust the installation angle of the screen according to the site conditions, improving the convenience of equipment use.

[0021] An automatic driving agricultural machine comprises the electric drive control device according to any one of the preceding embodiments.

[0022] Compared with the prior art, the automatic driving or assisted driving system of the present application has the following beneficial effects: by replacing a kind of screen electric drive control device, the flat module and the electric drive control module in the system are integrated, the integration degree is high, the operation is convenient, and the related modules such as agricultural machine horn, instrument panel and vehicle information can be integrated on the flat panel. The safety performance of the agricultural machine is greatly improved, and the safety hazard is reduced.

[0023] The application is based on the structure of the original electric steering wheel, and the integrated screen is installed on the upper part to avoid the exposure of the connecting line, and the driver needs to get up to find the screen and operate, which is simple in structure, low in cost, high in safety, and unexpected technical effects are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings are included to provide a further understanding of the application, and constitute a part of the specification, which together with the embodiments of the application, are used to explain the application, and do not constitute a limitation on the application. In the drawings: Figure 1 It is the overall exploded view of the embodiment of the application; Figure 2 It is the gear meshing exploded view of the embodiment of the application; Figure 3 It is the gear assembly view of the embodiment of the application; Figure 4 It is the bearing exploded view of the embodiment of the application; Figure 5 It is the bearing assembly view of the embodiment of the application; Figure 6 It is the structure schematic diagram of the embodiment of the application; Figure 7 It is the structure schematic diagram of the embodiment of the application without the upper part of the cover; Figure 8 It is the structure schematic diagram of the embodiment of the application without the outer gear disc Figure 9 It is the structure schematic diagram of the embodiment of the application without the gear set; Figure 10 It is the fixed part schematic diagram of the embodiment of the application; Among them, the display screen 1, the display screen fixing frame 2, the cover 3, the display screen support 4, the inner gear 5, the snap spring 6, the outer gear disc 7, the steering wheel 8, the partition plate 9, the fixed part 10, the connecting spline 11, the motor 12, the motor connecting piece 13, the wire hole 21, the support fixing hole 22, the gear set 30, the gear piece 31, the U-shaped spring 32, the first bearing 41, the second bearing 42, the bearing inner position 43, the bearing outer position 44. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application.

[0026] Embodiment, refer to the specific structureFigures 1-10 .

[0027] A screen electric drive device, including display screen, display screen fixing frame, shade, display screen support, inner gear, outer gear disc, steering wheel, partition, fixing part, connecting spline, motor, motor connecting part and other related components.

[0028] The connecting spline is fixed on the upper surface threaded hole of the motor shaft by screw. (The motor and connecting spline are pre-assembled as the lower part), the outer position of the fixing part bearing, install the second bearing, the inner position of the fixing part bearing, install the first bearing, the partition is fixed on the upper threaded hole of the fixing part by screw, the steering wheel is pre-placed between the second bearing and the fixing part, the rivet is pressed on the steering wheel, the gear shaft includes the outer gear disc and the inner gear, the outer gear disc is fixed on the rivet of the steering wheel, at this time the steering wheel and the outer gear disc are connected as a whole, the inner gear contains outer teeth, which are meshed and fixed with the inner teeth of the outer gear disc, at the same time, from the bottom of the second gear disc, the inner gear is fixed at the bottom of the inner gear by a circlip, the inner gear contains inner splines, which are meshed with the outer splines of the connecting spline, the outer edge of the fixing part contains six hole positions, which are fixed in the corresponding threaded holes of the motor by screws, the inner gear is provided with corresponding hole positions for placing U-shaped springs for fixing the two gear pieces. At the same time, glue is applied in the U-shaped spring hole to strengthen the fixing, the display screen support is fixed in the support fixing hole on the fixing part by screw, the display screen support is provided with a long hole inside, which is used for wiring, and the cable is connected with the screen. The upper part of the shade is provided with a hole position, which is fixed and connected with the side threaded hole of the display screen support, used for covering the internal details and preventing dust and water, at the same time, the side of the shade is provided with a hole position for fixing the gland, and the gland is threaded. The cable is threaded out from the inside of the shade to avoid being exposed and damaged, and at the same time, the hole positions on both sides of the gland hole position are provided with hole positions for fixing the display screen fixing frame, and the display screen fixing frame is provided with corresponding hole positions for fixing the display screen. The display screen is designed to have a certain angle with the horizontal plane, so that the display screen has a certain installation angle, which meets the ergonomics. The motor is connected with the agricultural machine steering column through the motor connecting part, and then the direction of the agricultural machine is controlled. The motor connecting part is divided into two parts, Figure 1 The upper part shown in FIG. Figure 1 The lower part shown in FIG.

[0029] The specific installation effect is as follows: (1) A screen electric drive control device, which realizes the placement of the screen in the upper part of the steering wheel, does not affect the rotation of the steering wheel, makes the whole automatic driving system or auxiliary driving system have higher integration, and is more convenient to operate.

[0030] (2), the fixed part contains bearing inner position, bearing outer position, used for fixedly connecting the first bearing and the second bearing.

[0031] (3), the partition plate is connected to the fixed part through the upper threaded hole of the fixed part, is lowered to press the bearing and avoids the bearing from falling off in the rotating process.

[0032] (4), the upper part of the internal gear is fixed with two gear pieces through the U-shaped spring, the return difference in the gear meshing rotating process is reduced, the clearance is eliminated, the use precision and accuracy of the steering wheel are improved.

[0033] (5), the display screen support is provided with a long hole for wiring, and the side wall plays a cable protection role.

[0034] (6), the display screen is fixed on the display screen support, the display screen support has a certain angle and meets the ergonomic design.

[0035] (7), the steering wheel is connected with the external gear disc, and the internal teeth of the external gear disc rotate relative to the motor.

[0036] (8), the internal gear external spline is designed to mesh with the internal spline of the external gear disc and move relative to each other, and the eccentric position is reserved for the display screen support, which is used for wiring and connecting with the upper plate.

[0037] (9), the display screen support contains multiple groups of hole positions for assembling and connecting with the upper and lower related structures.

[0038] (10), the whole set of equipment is mechanically connected more firmly and reliably through the meshing of the eccentric gear and the meshing between the internal and external teeth of the spline.

[0039] Innovation points: (1), in the whole system, the display screen is concentrated in the steering wheel position, the operation is more convenient, the scene can be expanded, and the staff can operate more conveniently.

[0040] (2), the fixed part is connected with the first bearing and the second bearing through the meshing between the internal and external teeth, and the relative rotation between the steering wheels is realized.

[0041] (3), the cover is designed to cover the whole structure, which is more protective and not easy to be damaged.

[0042] (4), according to the ergonomic design, the screen installation angle is inclined by 10 degrees, and the operator is more convenient to operate.

[0043] (5), this scheme design can be extended and integrated in the later stage, and other information of agricultural machinery can be displayed, such as engine related data and instrument related data display.

[0044] (6), by connecting spline, the motor and the upper part are connected, and the screen is installed above the steering wheel.

[0045] (7), through the display screen support, internal wiring is realized to small screen for power supply.

[0046] (8), the display screen support is changed, and the screen angle is adjusted.

[0047] (9), the installation design of the display screen replaces the original scattered installation of the display screen.

[0048] (10), the first bearing and the second bearing are oppositely installed, the steering wheel and the screen are separated, the steering wheel is normally rotated, and the display screen is in a stationary state.

[0049] It should be noted that in this text, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0050] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application is described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An electric drive control device, comprising an electric motor and a steering wheel arranged on an agricultural machine steering column, characterized in that, The display screen is not rotated with the steering wheel.

2. The electric drive control device according to claim 1, characterized by The display screen is installed at an angle of 10 degrees.

3. The electric drive control device according to claim 1, characterized by The motor is a hollow cup motor, which comprises a shell and a core.

4. The electric drive control device according to claim 3, characterized by The motor is connected with the steering column of the agricultural machine through a motor connector, thereby controlling the direction of the agricultural machine.

5. The electric drive control device according to claim 3, characterized by The motor connector comprises a first connecting part and a second connecting part.

6. The electric drive control device according to claim 5, characterized by The upper part of the shell is provided with a fixing part, which comprises a static part and a rotating part.

7. The electric drive control device according to claim 6, characterized by The rotating part comprises a first bearing arranged in the inner bearing position and a second bearing arranged in the outer bearing position.

8. The electric drive control device according to claim 6, characterized by The upper part of the core is provided with a connecting spline.

9. The electric drive control device according to claim 6, characterized by The static part is arranged between the inner bearing position and the outer bearing position.

10. The electric drive control device according to claim 6, characterized by The upper part of the inner gear is provided with a gear piece, which is clamped with the inner gear through a U-shaped spring.

11. The electric drive control device according to claim 6, characterized by The inner diameter of the steering wheel is smaller than the outer diameter of the second bearing.

12. The electric drive control device according to claim 6, characterized by The upper part of the fixing part is provided with a partition plate.

13. The electric drive control device according to claim 5, characterized by The lower part of the inner gear is provided with a clamping spring.

14. The electric drive control device according to claim 13, characterized by The static part is a display screen support.

15. The electric drive control device according to claim 13, characterized by The upper part of the display screen support is provided with a mask.

16. The electric drive control device according to claim 15, characterized by The upper part of the mask is provided with a display screen fixing frame, the angle of which can be adjusted.

17. An autonomous agricultural vehicle, comprising: The electric drive control device comprises: The electric drive control device comprises: The electric drive control device comprises:

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