Steering control device

Abstract

The utility model discloses a steering control device. The steering control device comprises a lower shell, an upper shell, a transmission ring and a driving assembly. Wherein the lower shell is fixedly arranged below a steering wheel and is provided with a containing groove; the upper shell is used for being fixedly connected with the steering wheel and covers a groove opening of the containing groove to form an annular containing cavity, and the two side walls, oppositely arranged, of the lower shell and the upper shell are arranged at intervals in the radial direction of the lower shell. The transmission ring is connected with the upper shell in a fastening mode, and the transmission ring is movably arranged on the lower shell and contained in the annular containing cavity. And the driving assembly is in transmission connection with the transmission ring, so that the transmission ring and the upper shell rotate relative to the lower shell under the transmission of the driving assembly to drive the steering wheel to rotate around the rotating shaft. According to the technical scheme, the transmission ring can be protected and is not prone to damage, and therefore the service life of the steering control device is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic control of driving systems, and in particular relates to a steering control device. BACKGROUND

[0002] With the continuous development of the agricultural industry and the increasing emphasis of the country on agriculture, agricultural mechanization has gradually been popularized in some areas of China. Traditional mechanized farming requires a large amount of labor costs, and with the continuous increase of labor costs, automatic driving technology has been applied in the field of agricultural machinery.

[0003] Agricultural machinery is usually not equipped with automatic driving function when it leaves the factory, and it needs to be installed with an automatic driving system to have the automatic driving function. The automatic driving system includes a vehicle-mounted computer terminal and a steering control device, the steering control device is installed on the steering wheel of the agricultural machinery, and the vehicle-mounted computer terminal is electrically connected with the steering control device to control the working of the steering control device, so as to adjust the moving direction of the agricultural machinery.

[0004] In the related art, in some vehicles (for example: agricultural machinery), in order to improve the field of view of the driver's cabin, the periphery of the driver's cabin is usually designed with transparent glass, or the driver's cabin is designed to be open or semi-open. Therefore, the steering control device installed on the steering wheel is inevitably exposed to the sun and eroded by rain, which makes the transmission ring and other parts prone to damage, thereby reducing the service life of the steering control device. CONTENT OF THE UTILITY MODEL

[0005] The main purpose of the present application is to provide a steering control device, which aims to improve the existing steering control device, which is exposed to the sun and eroded by rain, causing the transmission ring and other parts to be prone to damage.

[0006] To achieve the above-mentioned purpose, the steering control device provided by the present application comprises a lower shell, an upper shell, a transmission ring and a driving assembly; wherein,

[0007] The lower shell is fixedly arranged below the steering wheel and is provided with a receiving groove;

[0008] The upper shell is used for fixedly connecting with the steering wheel and covering the slot opening of the receiving groove to form an annular receiving cavity, wherein the two side walls of the lower shell arranged oppositely are both spaced apart from the upper shell in the radial direction of the lower shell;

[0009] The transmission ring is tightly connected with the upper shell, and the transmission ring is movably arranged on the lower shell and accommodated in the annular receiving cavity;

[0010] The driving assembly is in transmission connection with the transmission ring, so that the transmission ring and the upper shell rotate relative to the lower shell under the transmission of the driving assembly to drive the steering wheel to rotate around the rotating shaft.

[0011] In some embodiments of the present application, the lower shell is spaced apart from the upper shell on one side of the upper shell in the depth direction of the accommodating groove.

[0012] In some embodiments of the present application, two sealing members are further arranged between the lower shell and the upper shell, respectively, and the two sealing members are respectively arranged on the two side walls of the lower shell.

[0013] In some embodiments of the present application, the bottom wall of the accommodating groove is provided with a drainage hole.

[0014] In some embodiments of the present application, the bottom wall of the accommodating groove is provided with a plurality of drainage holes, and the plurality of drainage holes are spaced apart along the circumference of the accommodating groove.

[0015] The upper shell, the lower shell and the transmission ring each comprise at least two detachably connected parts.

[0016] In some embodiments of the present application, the accommodating groove is a circular ring structure.

[0017] In some embodiments of the present application, the upper shell is provided with at least one drainage slope on the side away from the lower shell.

[0018] In some embodiments of the present application, the upper shell is provided with a stepped structure on the side away from the lower shell, the stepped structure comprises a first horizontal surface, the drainage slope and a second horizontal surface which are sequentially connected, and the second horizontal surface is obliquely below the first horizontal surface.

[0019] In some embodiments of the present application, the second horizontal surface is provided with a through hole in the depth direction of the accommodating groove, and a screw structure is threaded through the through hole and is in threaded connection with the transmission ring.

[0020] In some embodiments of the present application, the upper shell is recessed with a mounting groove on the side away from the second horizontal surface, and the transmission ring is protruded with a boss engaged with the mounting groove on the side toward the upper shell.

[0021] In some embodiments of the present application, the second horizontal surface is further provided with a drainage slope on the side away from the first horizontal surface.

[0022] In some embodiments of the present application, the drainage slope is provided with a water guide groove.

[0023] In some embodiments of the present application, the steering control device further comprises a rolling support assembly rotatably arranged on a bottom wall of the accommodating groove and in rolling contact with the transmission ring so as to movably arrange the transmission ring on the lower housing.

[0024] In some embodiments of the present application, an inner peripheral side of the transmission ring is concavely provided with an annular groove along a radial direction of the transmission ring, and the rolling support assembly is at least partially accommodated in the annular groove and in rolling contact with at least a side groove wall of the annular groove close to the steering wheel so as to rolling support the transmission ring.

[0025] In some embodiments of the present application, the driving assembly is in driving connection with the transmission ring through meshing connection of a spur gear.

[0026] In some embodiments of the present application, an outer peripheral side of the transmission ring is provided with a plurality of straight teeth, the straight teeth are arranged along a thickness direction of the transmission ring, and the plurality of straight teeth are equidistantly arranged along a circumferential direction of the transmission ring.

[0027] The driving assembly comprises the spur gear, and the spur gear is in meshing connection with the plurality of straight teeth.

[0028] In some embodiments of the present application, the driving assembly further comprises a first motor, a motor shaft of the first motor is arranged along the thickness direction of the transmission ring, and the spur gear is fixed on the motor shaft of the first motor so as to synchronously drive the spur gear to rotate when the motor shaft of the first motor rotates.

[0029] In some embodiments of the present application, the driving assembly is in driving connection with the transmission ring through meshing connection of a bevel gear.

[0030] In some embodiments of the present application, an outer peripheral side of the transmission ring is provided with a slope and a plurality of bevel teeth, and the plurality of bevel teeth are equidistantly arranged on the slope along a circumferential direction of the transmission ring.

[0031] The driving assembly comprises the bevel gear, and the bevel gear is in meshing connection with the plurality of bevel teeth.

[0032] In some embodiments of the present application, the driving assembly further comprises a second motor, a motor shaft of the second motor is arranged along a radial direction of the transmission ring, and the bevel gear is fixed on the motor shaft of the second motor so as to synchronously drive the bevel gear to rotate when the motor shaft of the second motor rotates.

[0033] In some embodiments of the present application, the lower housing further comprises a mounting portion with a mounting cavity, the mounting portion is arranged adjacent to the accommodating groove, and the mounting cavity is arranged in communication with the accommodating groove for mounting the driving assembly.

[0034] In some embodiments of the present application, the lower shell further comprises a fixing support provided with a fixing connecting part and a locking part, the fixing connecting part is fixedly connected with the lower shell, and the locking part is used for being fixedly connected with the sleeve below the steering wheel, so as to fixedly arrange the lower shell below the upper shell.

[0035] The present application also provides an automatic driving system, which comprises a vehicle-mounted computer terminal and the steering control device.

[0036] The vehicle-mounted computer terminal comprises a positioning module and a control module, the positioning module is in communication connection with a positioning system to obtain position information, and the positioning module and the driving assembly are both in electrical connection with the control module, and the control module controls the working of the driving assembly according to the position information obtained by the positioning module, so as to adjust the moving direction of the agricultural machine.

[0037] The steering control device provided by the present application has the above structure, after being installed on the steering wheel, the transmission ring can be accommodated in the annular accommodating cavity, avoiding being directly exposed to the environment in the cockpit, when the steering control device is exposed to the sun, the annular accommodating cavity formed by the upper shell and the lower shell can protect the transmission ring, when the steering control device is eroded by rain, since the two side walls arranged opposite to each other on the lower shell are both spaced apart from the upper shell in the radial direction of the lower shell, the rain will fall along the edge of the upper shell to the ground of the cockpit, and it is difficult to enter the annular accommodating cavity to erode the transmission ring, so that the transmission ring is protected and is not easy to be damaged, thereby improving the service life of the steering control device. At the same time, since the transmission ring is protected, the requirements of corrosion resistance and hardness of the material of the transmission ring can be reduced, so that the transmission ring can be made of cheaper materials, thereby reducing the manufacturing cost of the steering control device. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative labor.

[0039] Figure 1 The overall structure diagram of the steering control device of the present application installed on the steering wheel is shown in the figure.

[0040] Figure 2 The structure diagram of the steering control device in the present application is shown in the figure. Figure 1 The structure diagram of the steering control device in the present application is shown in the figure.

[0041] Figure 3 Fig. 1 is a perspective view of a steering control device according to an embodiment of the present application; Figure 2 Fig. 2 is a sectional view of the steering control device;

[0042] Figure 4 Fig. 3 is a sectional view of the steering control device; Figure 3 Fig. 4 is an enlarged view of part A in Fig. 3;

[0043] Figure 5 Fig. 5 is a sectional view of the steering control device; Figure 2 Fig. 6 is a schematic view of a partial structure of the steering control device;

[0044] Figure 6 Fig. 7 is a schematic view of a partial structure of the steering control device; Figure 5 Fig. 8 is a schematic view of a partial structure of the steering control device

[0045] Figure 7 Fig. 9 is an exploded view of another embodiment of the steering control device according to the present application;

[0046] Figure 8 Fig. 10 is a sectional view of the steering control device; Figure 7 Fig. 11 is a sectional view of the steering control device;

[0047] Figure 9 Fig. 12 is an enlarged view of part B in Fig. 11. Figure 8 BRIEF DESCRIPTION OF THE DRAWINGS

[0048] 100, steering control device; 10, lower housing; 11, accommodating groove; 111, side wall; 12, drainage hole; 13, mounting portion; 14, fixing support; 141, lock; 1411, locking portion; 142, support frame; 20, upper housing; 21, drainage slope; 22, first flange; 23, second flange; 24, first horizontal plane; 25, second horizontal plane; 26, mounting groove; 30, transmission ring; 31, annular groove body; 32, mounting hole; 33, boss; 40, driving assembly; 41, spur gear; 42, first motor; 50, annular accommodating cavity; 60, rolling support assembly; 200, steering wheel; 201, spoke; 202, sleeve.

[0049] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings.

[0050] DETAILED DESCRIPTION DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0052] In the present application, unless specifically defined and limited otherwise, the terms "connected", "fixed", and the like should be interpreted broadly, for example, "fixed" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements, or interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0054] The embodiment of the present application provides a steering control device 100, which is used for realizing automatic driving by controlling the rotation of the steering wheel 200 around the corresponding rotation shaft. Specifically, the steering control device 100 can be used for vehicles such as agricultural machinery, please combine with reference to the accompanying drawings Figures 1 to 6 In the embodiment of the present application, the steering control device 100 comprises a lower shell 10, an upper shell 20, a transmission ring 30 and a driving assembly 40.

[0055] The lower shell 10 is fixedly arranged below the steering wheel 200 and is provided with a containing groove 11. The lower shell 10 can be directly or indirectly fixedly connected with the sleeve 202 of the steering wheel 200 to be fixed below the steering wheel 200, and the sleeve 202 is mainly used for surrounding protection of the rotation shaft below the steering wheel 200. It can be understood that in agricultural machinery, a seat is usually arranged near the steering wheel 200, and the lower shell 10 can be directly or indirectly fixedly connected with the seat to be fixed below the steering wheel 200; a heavy base can also be placed in the cockpit, and the lower shell 10 can be directly or indirectly fixedly connected with the base to be fixed below the steering wheel 200.

[0056] The upper shell 20 is fixedly connected with the steering wheel 200 and covers the slot of the accommodating groove 11 to form the annular accommodating cavity 50, wherein the two side walls 111 of the lower shell 10 arranged oppositely are spaced apart from the upper shell 20 in the radial direction of the lower shell 10. The connection between the upper shell 20 and the steering wheel 200 can also be various, and the upper shell 20 can be fixedly connected with the steering wheel 200 through a hoop, a strap and the like.

[0057] Specifically, the surface of the upper shell 20 can be provided with a plurality of pipe clamps to achieve the fixed connection between the upper shell 20 and the steering wheel 200 by clamping the rim and / or spoke 201 of the steering wheel 200 through the plurality of pipe clamps. In other examples, the surface of the upper shell 20 can be provided with a plurality of hoops to achieve the fixed connection between the upper shell 20 and the steering wheel 200 by tightly holding the rim and / or spoke 201 of the steering wheel 200 through the plurality of hoops.

[0058] Specifically, in the present embodiment, the side of the upper shell 20 away from the steering wheel 200 is provided with a first flange 22 protruding away from the steering wheel 200, and the first flange 22 is arranged around the outer side wall 111 of the lower shell 10, so that the outer side wall 111 of the lower shell 10 is spaced apart from the upper shell 20. The side of the upper shell 20 away from the steering wheel 200 is also provided with a second flange 23 protruding away from the steering wheel 200, and the second flange 23 is arranged around the inner side wall 111 of the lower shell 10, so that the inner side wall 111 of the lower shell 10 is spaced apart from the upper shell 20.

[0059] It can be understood that generally, the two side walls 111 arranged oppositely of the lower shell 10 surround to form the accommodating groove 11, and the slot of the accommodating groove 11 is formed between the two side walls 111 arranged oppositely of the lower shell 10. The above-mentioned upper shell 20 covers the slot of the accommodating groove 11, that is, the upper shell 20 covers the upper part of the lower shell 10.

[0060] In other examples, the outer periphery and the inner periphery of the side of the upper shell 20 away from the steering wheel 200 respectively extend downwardly along the depth direction of the accommodating groove 11, so that the outer side wall of the lower shell 10 is spaced apart from the extension part of the outer periphery of the upper shell 20, and the inner side wall of the lower shell 10 is spaced apart from the extension part of the inner periphery of the upper shell 20.

[0061] It can be understood that through the above arrangement of the upper shell 20, the projection area of the outer contour of the upper shell 20 on the horizontal plane will cover the projection area of the outer contour of the lower shell 10 on the horizontal plane.

[0062] The transmission ring 30 is fixedly connected with the upper shell 20, and the transmission ring 30 is movably arranged on the lower shell 10 and accommodated in the annular accommodating cavity 50. The transmission ring 30 can be fixed to the upper shell 20 through a screw structure, or can be fixed to the upper shell 20 through an adhesive.

[0063] In some examples, as shown in Figure 4 and Figure 5 The transmission ring 30 is provided with a plurality of mounting holes 32 along the thickness direction thereof, and the plurality of mounting holes 32 are also spaced along the circumferential direction of the transmission ring 30. A plurality of screw structures are respectively threaded through the corresponding mounting holes 32 and are screwed with the upper shell 20, so as to fix the transmission ring 30 to the upper shell 20.

[0064] In the present example, the upper shell 20 is provided with a threaded hole in the vertical direction, which is preferably a blind hole. It should be noted that the plurality of mounting holes 32 can be uniformly spaced along the axial direction of the transmission ring 30, or can not be uniformly spaced. Preferably, the mounting hole 32 is a counterbore.

[0065] In this way, the screw structure is threaded through the mounting hole 32 and is screwed with the upper shell 20 in the vertical direction below the transmission ring 30, avoiding direct exposure of the screw structure to the upper surface of the upper shell 20, reducing the probability of corrosion of the screw structure, and thereby improving the reliability of the connection between the transmission ring 30 and the upper shell 20.

[0066] Of course, in other examples, the mounting hole 32 can be a threaded hole, and the upper shell 20 is provided with a through hole. The screw structure is threaded through the through hole of the upper shell 20 and is screwed with the mounting hole 32 in the vertical direction above the upper shell 20, so as to fix the transmission ring 30 to the upper shell 20.

[0067] The driving assembly 40 is in driving connection with the transmission ring 30, so that the transmission ring 30 and the upper shell 20 are rotated relative to the lower shell 10 under the driving of the driving assembly 40, so as to drive the steering wheel 200 to rotate around the rotating shaft. The driving assembly 40 can be in driving connection with the transmission ring 30 through chain transmission, gear transmission, etc.

[0068] The steering control device 100 provided by the embodiments of the present application controls the rotation of the steering wheel 200 as follows: the driving assembly 40 drives the transmission ring 30 to rotate clockwise, and the transmission ring 30 is fixedly connected with the steering wheel 200 through the upper shell 20, so as to drive the steering wheel 200 to rotate clockwise around the rotating shaft, thereby adjusting the moving direction of the agricultural machine. The driving assembly 40 drives the rotating body to rotate counterclockwise, and the transmission ring 30 is fixedly connected with the steering wheel 200 through the upper shell 20, so as to drive the steering wheel 200 to rotate counterclockwise around the rotating shaft, thereby adjusting the moving direction of the agricultural machine. The upper shell 20 can drive the steering wheel 200 to rotate around the rotating shaft through the spokes 201 and / or the rim of the steering wheel 200.

[0069] The steering control device 100 provided by the embodiments of the present application is installed on the steering wheel 200, and the transmission ring 30 is accommodated in the annular accommodating cavity 50, thereby avoiding direct exposure to the environment in the cockpit. When the steering control device 100 is exposed to sunlight, the annular accommodating cavity 50 formed by the upper shell 20 and the lower shell 10 can protect the transmission ring 30. When the steering control device 100 is eroded by rain, the rainwater will fall to the ground of the cockpit along the edge of the upper shell 20 and is difficult to enter the annular accommodating cavity 50 to erode the transmission ring 30, thereby protecting the transmission ring 30 and preventing the transmission ring 30 from being damaged, and further improving the service life of the steering control device 100. Meanwhile, since the transmission ring 30 is protected, the requirements for corrosion resistance and hardness of the material of the transmission ring 30 can be reduced, so that the transmission ring 30 can be made of cheaper materials, thereby reducing the manufacturing cost of the steering control device 100.

[0070] The specific installation mode of the steering control device 100 provided by the embodiments of the present application has various modes. In one installation mode, the steering control device 100 can be assembled in advance, the steering wheel 200 on the vehicle is disassembled, the assembled steering control device 100 is sleeved into the sleeve 202 below the steering wheel 200, and then the steering wheel 200 is installed. At this time, the upper shell 20 and the steering wheel 200 can be fixedly connected, and the lower shell 10 can be fixedly arranged below the steering wheel 200.

[0071] In some other embodiments, as shown in Figure 7 The upper shell 20, the transmission ring 30 and the lower shell 10 of the steering control device 100 each include at least two detachably connected parts. The driving assembly 40 is fixedly installed on the lower shell 10 of any part, so that the upper shell 20, the transmission ring 30 and the lower shell 10 composed of at least two parts are assembled into complete parts with the sleeve 202 below the steering wheel 200 as an axis, and the assembly process of the steering control device 100 is simultaneously performed. Finally, the upper shell 20 and the steering wheel 200 are fixedly connected, and the lower shell 10 is fixedly arranged below the steering wheel 200.

[0072] Preferably, in some examples, two sealing members are respectively arranged between the lower shell 10 and the upper shell 20, and the two sealing members are respectively located on the two side walls 111 of the lower shell 10. In this way, the gap between the lower shell 10 and the upper shell 20 is reduced by the sealing members to avoid the entry of foreign matters.

[0073] The sealing member can be fixedly installed on the upper shell 20 or the lower shell 10. Further, the sealing member can be a fitting member such as a steel sleeve, which is fitted on the upper shell 20 or the lower shell 10. It is emphasized that when the sealing member is installed on the upper shell 20, a small gap is left between the sealing member and the lower shell 10 to avoid interference with the movement of the upper shell 20 relative to the lower shell 10. Similarly, when the sealing member is installed on the lower shell 10, a small gap is left between the sealing member and the upper shell 20 to avoid interference with the movement of the upper shell 20 relative to the lower shell 10.

[0074] In some examples, the sealing member includes at least two parts that are detachably connected.

[0075] In some examples, as shown in Figure 5 The accommodation groove 11 is in a circular ring structure. This arrangement is intended to better accommodate the transmission ring.

[0076] In some examples, as shown in Figure 4 The two side walls 111 of the lower shell 10 arranged opposite to each other are spaced apart from the upper shell 20 in the depth direction of the accommodation groove 11. This arrangement is intended to reduce the resistance experienced by the upper shell 20 when rotating, thereby improving the energy utilization rate of the drive assembly 40.

[0077] In some examples, as shown in Figures 2 to 4 The side of the upper shell 20 facing away from the lower shell 10 is provided with at least one drainage slope 21. The drainage slope 21 refers to a portion of the surface of the upper shell 20 that is arranged obliquely, forming a certain angle with the horizontal plane. This arrangement is intended to accelerate the drainage of rainwater away from the upper shell 20 through the interaction of the gravity of the rainwater and the drainage slope 21.

[0078] In some examples, as shown in Figure 2 The surface of the side of the upper shell 20 facing away from the lower shell 10 has a circular ring surface in the middle that is parallel to the horizontal plane, and the circular ring surfaces on both sides are inclined downward in the depth direction of the accommodation groove 11. The circular ring surfaces on both sides are the drainage slopes 21.

[0079] In some examples, as shown in Figure 7 The side of the upper shell 20 facing away from the lower shell 10 is provided with a stepped structure, which includes a first horizontal plane 24, a drainage slope 21, and a second horizontal plane 25 that are sequentially connected, and the second horizontal plane 25 is obliquely below the first horizontal plane 24. Through the above arrangement, the stepped structure forms a step surface, which is intended to further improve the drainage speed.

[0080] In some examples, as shown in Figure 7As shown, the second horizontal surface 25 is provided with a through hole along the depth direction of the accommodating groove 11, and the screw structure is threadedly connected with the transmission ring 30 through the through hole.

[0081] In this way, the space utilization of the upper shell 20 is further optimized, the transmission ring 30 is facilitated to be installed, and the upper shell 20 is more compact.

[0082] In some examples, as shown in Figure 8 and Figure 9 the side of the upper shell 20 away from the second horizontal surface 25 is concavely provided with a mounting groove 26, and the side of the transmission ring 30 facing the upper shell 20 is convexly provided with a boss 33 engaged with the mounting groove 26. In this way, the boss 33 is engaged with the mounting groove 26, so that the transmission ring 30 and the upper shell 20 are concave-convex matched with each other, and the stability of the transmission ring 30 installed on the upper shell 20 is improved.

[0083] In some examples, as shown in Figure 7 the side of the second horizontal surface 25 away from the first horizontal surface 24 is further provided with a drainage slope 21. In this way, the drainage efficiency is further improved.

[0084] In some examples, as shown in Figure 7 the drainage slope 21 is provided with a water guide groove. Specifically, the water guide groove can extend from the through hole on the second horizontal surface 25 to the center of the upper shell 20. In this way, the drainage efficiency is further improved.

[0085] In some examples, as shown in Figure 2 and Figure 6 the bottom wall of the accommodating groove 11 is provided with a drainage hole 12. In this way, a small amount of rainwater entering the annular accommodating cavity 50 can be discharged through the drainage hole 12, the annular accommodating cavity 50 can be communicated with the outside through the drainage hole 12, the exchange of air flow is promoted, the heat in the annular accommodating cavity 50 is discharged, the heat is prevented from being accumulated in the annular accommodating cavity 50, and the normal work of the steering control device 100 is affected.

[0086] In this example, the drainage hole 12 is further provided along the radial direction of the accommodating groove 11; in another example, the drainage hole 12 is provided along the circumferential direction of the accommodating groove 11. The shape of the drainage hole 12 is various, which is not described one by one here.

[0087] In some examples, as shown in Figure 6 the bottom wall of the accommodating groove 11 is provided with a plurality of drainage holes 12, and the plurality of drainage holes 12 are arranged at intervals along the circumferential direction of the accommodating groove 11. In this way, a small amount of rainwater entering the annular accommodating cavity 50 can be quickly discharged through the plurality of drainage holes 12.

[0088] In some examples, asFigures 3 to 5 As shown, the steering control device 100 further comprises a rolling support assembly 60, which is rotatably arranged on the bottom wall of the accommodating groove 11 and in rolling contact with the transmission ring 30, so that the transmission ring 30 is movably arranged on the lower shell 10. In this way, it is intended to improve the stability of the transmission ring 30 when rotating relative to the lower shell by rolling contact between the rolling support assembly 60 and the transmission ring 30, so that the driving assembly 40 mounted on the lower shell 10 is more reliable in transmission connection with the transmission ring 30.

[0089] In this way, the rolling support assembly 60 can be in rolling contact with the bottom of the transmission ring 30 to provide upward support force for the rotating body at the bottom of the transmission ring 30, and the rolling support assembly 60 can also extend into the interior of the transmission ring 30 and be in rolling contact with the interior of the transmission ring 30 to provide upward support force for the transmission ring 30.

[0090] According to different positions of the rolling support assembly 60 in rolling contact with the transmission ring 30, the rolling support assembly 60 also has various setting modes. In some examples, the rolling support assembly 60 comprises a plurality of rolling balls, which are respectively in rolling contact with the bottom of the transmission ring 30. The transmission ring 30 can also be provided with a groove at the bottom, and the plurality of rolling balls at least partially extend into the interior of the groove and are in rolling abutment with the groove wall. In other examples, the inner circumferential side of the transmission ring 30 is provided with a groove, and the rolling support assembly 60 extends into the groove and is in rolling abutment with the groove wall. In yet other examples, the rotating body can also be provided with a groove at the outer circumferential side, and the rolling support assembly 60 extends into the groove and is in rolling abutment with the groove wall.

[0091] In some examples, as shown, Figure 5 The inner circumferential side of the transmission ring 30 is recessed along the radial direction of the transmission ring 30 to form an annular groove body 31, and the rolling support assembly 60 is at least partially accommodated in the annular groove body 31 and at least in rolling contact with the groove wall on the side of the annular groove body 31 close to the steering wheel 200, so as to rolling support the transmission ring 30.

[0092] In this way, it is intended to guide the rotation of the transmission ring 30 by the cooperation between the annular groove body 31 and the rolling support assembly 60 while the rolling support assembly 60 is rolling supporting the transmission ring 30.

[0093] In order to improve the stability of the rolling support assembly 60 supporting the transmission ring 30, the rolling support assembly 60 comprises at least two rolling support bodies, and the at least two rolling support bodies are arranged at intervals along the circumferential direction of the annular groove body 31. Among them, the rolling support bodies can be uniformly arranged at intervals, or can be arranged at non-uniform intervals. For example, when the number of rolling support bodies is three, two rolling support bodies are arranged on the same diameter of the transmission ring 30, and the other rolling support body is arranged on another diameter of the transmission ring 30, so that the connecting lines between the three rolling support bodies form a right triangle. When the number of rolling support bodies is three, the three rolling support bodies can be uniformly arranged at intervals in the circumferential direction of the transmission ring 30, so that the connecting lines between the three rolling support bodies form an equilateral triangle.

[0094] In some examples, as shown in Figure 4 and Figure 5 The rolling support body comprises a fixed shaft and a rotating wheel. One end of the fixed shaft is fixedly arranged on the lower shell 10, and the other end of the fixed shaft is rotatably arranged with the rotating wheel. The rotating wheel is at least partially accommodated in the annular groove body 31 and at least in rolling contact with the groove wall of the annular groove body 31 close to the steering wheel 200, so as to rolling support the transmission ring 30.

[0095] The one end of the fixed shaft fixedly arranged on the lower shell 10 also has various implementation manners. In one arrangement, a blind hole is formed on the lower shell 10, and the one end of the fixed shaft is in interference fit with the blind hole to be inserted and fixed on the lower shell 10. In another arrangement, the fixed shaft is welded to the lower shell 10.

[0096] The rotating wheel can be rotatably mounted on the fixed shaft through a bearing, or the rotating wheel can be directly sleeved on the fixed shaft, which will not be described one by one.

[0097] In this way, the rolling support assembly 60 is arranged in rolling contact with the groove wall of the annular groove body 31 close to the steering wheel 200 through the rolling support body, so as to rolling support the transmission ring 30 through the rolling support body, and provide upward supporting force for the transmission ring 30.

[0098] In Figure 5 the example shown, the number of rolling support bodies is six and they are uniformly arranged at intervals. In other examples, the number of rolling support bodies is eight or ten, which is not limited in the present application.

[0099] In some examples, as shown in Figure 5 The driving assembly 40 is in driving connection with the transmission ring 30 through the meshing connection of the straight gear 41. In this way, the driving efficiency and reliability of the driving assembly 40 and the transmission ring 30 are improved.

[0100] In some examples, as shown in Figure 5As shown, the outer periphery of the transmission ring 30 is provided with a plurality of straight teeth extending along the thickness direction of the transmission ring 30, and the plurality of straight teeth are equidistantly arranged along the circumferential direction of the transmission ring 30. The drive assembly 40 comprises a straight gear 41, and the straight gear 41 is meshingly connected with the plurality of straight teeth. In this way, the drive assembly 40 is meshingly connected with the transmission ring 30 through the straight gear 41, so as to further improve the reliability of the transmission.

[0101] In some examples, as shown in Figure 5 The drive assembly 40 further comprises a first motor 42, and the motor shaft of the first motor 42 extends along the thickness direction of the transmission ring 30. The straight gear 41 is fixed on the motor shaft of the first motor 42, so as to drive the straight gear 41 to rotate synchronously when the motor shaft of the first motor 42 rotates. In this way, the assembly of the steering control device 100 is facilitated.

[0102] In some examples, the drive assembly 40 is meshingly connected with the transmission ring 30 through a bevel gear. In this way, the transmission efficiency and reliability of the drive assembly 40 and the transmission ring 30 are improved.

[0103] In some examples, the outer periphery of the transmission ring 30 is provided with a slope and a plurality of bevel teeth equidistantly arranged on the slope along the circumferential direction of the transmission ring 30. The drive assembly 40 comprises a bevel gear, and the bevel gear is meshingly connected with the plurality of bevel teeth. In this way, the drive assembly 40 is meshingly connected with the transmission ring 30 through the bevel gear, so as to further improve the reliability of the transmission.

[0104] In some examples, the drive assembly 40 further comprises a second motor, and the motor shaft of the second motor extends along the radial direction of the transmission ring 30. The bevel gear is fixed on the motor shaft of the second motor, so as to drive the bevel gear to rotate synchronously when the motor shaft of the second motor rotates. In this way, the installation position of the second motor is located on the same horizontal plane as the transmission ring 30, so as to reduce the thickness of the steering control device 100, thereby reducing the space occupation of the steering control device 100 in the vertical direction of the cockpit.

[0105] In some examples, as shown in Figures 2 to 5 The lower housing 10 further comprises a mounting portion 13 with a mounting cavity, and the mounting portion 13 is arranged adjacent to the accommodating groove 11 and in communication with the accommodating groove 11, so as to mount the drive assembly 40.

[0106] In this way, the drive assembly 40 is protected by the mounting cavity, the protection performance of the steering control device 100 is improved, the influence of external factors on the steering control device 100 is avoided, the service life of the steering control device 100 is improved, and the reliability of the transmission connection between the drive assembly 40 and the transmission ring 30 is improved.

[0107] Specifically, in an example, the mounting portion 13 comprises a mounting plate and a cover body, the mounting plate and the cover body jointly form a mounting cavity, the motor of the driving assembly 40 is fixedly installed on a side of the mounting plate away from the mounting cavity, and a motor shaft of the motor extends into the mounting cavity, the gear of the driving assembly 40 is fixed on the motor shaft and partially accommodated in the mounting cavity, and the gear is also engaged with the transmission ring 30 at a position where the mounting cavity and the accommodating groove 11 communicate.

[0108] In yet another example, the mounting portion 13 comprises a mounting shell, the mounting shell has a mounting cavity formed therein, the motor of the driving assembly 40 is fixedly installed in the mounting cavity, the gear of the driving assembly 40 is fixed on the motor shaft and partially accommodated in the mounting cavity, and the gear is also engaged with the transmission ring 30 at a position where the mounting cavity and the accommodating groove 11 communicate.

[0109] In some examples, the driving assembly 40 further comprises a gearbox, the motor of the driving assembly 40 is in driving connection with the gearbox, and an output end of the gearbox is connected with the bevel gear or the spur gear 41 mentioned above, that is, the motor of the driving assembly 40 is connected with the bevel gear or the spur gear 41 through the gearbox, and the bevel gear or the spur gear 41 is engaged with the transmission ring 30. In this way, the output power, torque, etc. of the driving assembly 40 can be controlled through the gearbox, so as to improve the controllability of the steering control device 100.

[0110] In some examples, as shown in Figure 1 and Figure 2 , the lower shell 10 further comprises a fixing support 14, the fixing support 14 is provided with a fixed connecting portion and a locking portion 1411, the fixed connecting portion is fixedly connected with the lower shell 10, and the locking portion 1411 is used for fixedly connecting with a sleeve 202 below the steering wheel 200, so as to fixedly arrange the lower shell 10 below the upper shell 20.

[0111] In this way, the assembly of the lower shell 10 is facilitated, so as to improve the assembly efficiency of the steering control device 100. At the same time, by fixedly arranging the lower shell 10 below the steering wheel 200 through the fixing support 14, the influence of the vibration of the agricultural machinery on the steering control device 100 is reduced, so as to improve the reliability of the steering control device 100.

[0112] In some examples, as shown in Figure 1 and Figure 2 , the fixing support 14 comprises a lock 141 and a support frame 142, one side of the lock 141 is provided with the locking portion 1411, the other side of the lock 141 is fixedly connected with the support frame 142, the side of the support frame 142 away from the lock 141 is provided with a connecting hole to form the fixed connecting portion, and the support frame 142 is fixedly connected with the lower shell 10 through the connecting hole and a screw structure.

[0113] In this way, the assembly of the lower shell 10 is facilitated, and the locking of the sleeve 202 by the locking portion 1411 of the lock 141 improves the adaptability of the fixing support 14 to the sleeve 202.

[0114] The lock 141 can include a hoop or two clamping plates and two bolts. When the two clamping plates are clamped on opposite sides of the sleeve 202, the two clamping plates are fixed by the two bolts, so that the lock 141 is fixed to the circumferential side of the sleeve 202.

[0115] The application also provides an automatic driving system, which comprises a vehicle-mounted computer terminal and a steering control device 100. The specific structure of the steering control device 100 is described in the above embodiments. Since the automatic driving system adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0116] The vehicle-mounted computer terminal comprises a positioning module and a control module. The positioning module is in communication connection with a positioning system to obtain position information. The positioning module and the driving assembly 40 are both in electrical connection with the control module. The control module controls the operation of the driving assembly 40 according to the position information obtained by the positioning module, so as to adjust the moving direction of the agricultural machine.

[0117] The positioning system can be a global positioning system (GPS), a Beidou navigation system, etc. It can provide accurate position information for the positioning module. The control module can accurately determine the specific position of the agricultural machine according to the position information, and can calculate the speed of the agricultural machine according to the change of the position information.

[0118] It can be understood that the control of the control module on the operation of the driving assembly 40 to adjust the moving direction of the agricultural machine generally means that the agricultural machine is controlled to move within a predetermined range, for example, to move within a designated farmland.

[0119] Of course, in some examples, the vehicle-mounted computer terminal can also communicate with other communication devices to receive information of other devices, so as to control the operation of the driving assembly 40 according to the information to adjust the moving direction of the agricultural machine, thereby realizing the remote operation of the agricultural machine.

[0120] The above is only an optional embodiment of the application, and does not limit the patent scope of the application. Any equivalent structural transformation made by using the content of the application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the application.

Claims

1. A steering control device for achieving automatic driving by controlling the rotation of a steering wheel around a corresponding axis, characterized in that, It includes a lower housing, an upper housing, a transmission ring, and a drive assembly; among which, The lower housing is fixedly disposed below the steering wheel and is provided with a receiving groove; The upper housing is used to be fixedly connected to the steering wheel and to cover the opening of the receiving groove to form a receiving cavity; wherein, the two side walls of the lower housing are arranged opposite to each other and are spaced apart from the upper housing in the radial direction of the lower housing; The transmission ring is fastened to the upper housing, and the transmission ring is movably disposed on the lower housing and housed within the receiving cavity; The drive assembly is connected to the transmission ring, so that the transmission ring and the upper housing rotate relative to the lower housing under the drive assembly, thereby driving the steering wheel to rotate around the shaft.

2. The steering control device as described in claim 1, characterized in that, The lower housing is spaced apart from the upper housing on the side of the receiving groove facing the upper housing in the depth direction.

3. The steering control device as described in claim 1, characterized in that, Two sealing elements are respectively provided between the lower housing and the upper housing, and the two sealing elements are respectively located on the two side walls of the lower housing that are opposite to each other.

4. The steering control device as described in claim 1, characterized in that, The bottom wall of the receiving tank is provided with a drainage hole.

5. The steering control device as described in claim 4, characterized in that, The bottom wall of the receiving tank is provided with a plurality of drainage holes, which are spaced apart along the circumference of the receiving tank.

6. The steering control device as claimed in claim 1, characterized in that, The upper housing, the lower housing, and the transmission ring each include at least two detachably connected parts.

7. The steering control device as claimed in claim 1, characterized in that, The receiving groove has a circular ring structure.

8. The steering control device as claimed in claim 1, characterized in that, The upper shell has at least one drainage slope on the side opposite to the lower shell.

9. The steering control device as claimed in claim 8, characterized in that, The upper shell has a stepped structure on the side opposite to the lower shell. The stepped structure includes a first horizontal surface, a drainage slope, and a second horizontal surface that are connected in sequence, and the second horizontal surface is located diagonally below the first horizontal surface.

10. The steering control device as claimed in claim 9, characterized in that, The second horizontal plane has a through hole extending through the depth of the receiving groove, and a screw structure passes through the through hole and is threadedly connected to the transmission ring.

11. The steering control device as claimed in claim 9, characterized in that, The upper housing has a recessed mounting groove on the side opposite to the second horizontal plane, and the transmission ring has a protrusion on the side facing the upper housing that engages with the mounting groove.

12. The steering control device as claimed in claim 9, characterized in that, The second horizontal plane is further provided with a drainage slope on the side away from the first horizontal plane.

13. The steering control device as claimed in claim 12, characterized in that, A water guide groove is provided on the drainage slope.

14. The steering control device as claimed in claim 1, characterized in that, The steering control device further includes a rolling support assembly, which is rotatably disposed on the bottom wall of the receiving groove and rolls in contact with the transmission ring, so that the transmission ring is movably disposed on the lower housing.

15. The steering control device as claimed in claim 14, characterized in that, The inner circumference of the transmission ring is recessed with an annular groove along the radial direction of the transmission ring. The rolling support assembly is at least partially housed in the annular groove and rolls in contact with at least the groove wall of the annular groove on the side closest to the steering wheel, so as to roll support the transmission ring.

16. The steering control device as claimed in claim 1, characterized in that, The drive assembly is connected to the transmission ring via a spur gear meshing connection.

17. The steering control device as claimed in claim 16, characterized in that, The outer circumferential side of the transmission ring is provided with a plurality of straight teeth, which extend along the thickness direction of the transmission ring and are evenly spaced along the circumference of the transmission ring. The drive assembly includes the spur gear, and the spur gear is meshed with a plurality of the spur teeth.

18. The steering control device as claimed in claim 17, characterized in that, The drive assembly further includes a first motor, the motor shaft of the first motor extending along the thickness direction of the transmission ring, and the spur gear fixed on the motor shaft of the first motor so that when the motor shaft of the first motor rotates, it synchronously drives the spur gear to rotate.

19. The steering control device as claimed in claim 1, characterized in that, The drive assembly is connected to the transmission ring via a bevel gear meshing connection.

20. The steering control device as claimed in claim 19, characterized in that, The outer circumference of the transmission ring is provided with an inclined surface and multiple inclined teeth, and the multiple inclined teeth are equally spaced on the inclined surface along the circumference of the transmission ring; The drive assembly includes the bevel gear, and the bevel gear is meshed with a plurality of the helical teeth.

21. The steering control device as claimed in claim 20, characterized in that, The drive assembly also includes a second motor, the motor shaft of the second motor extending radially along the transmission ring, and the bevel gear fixed on the motor shaft of the second motor so as to synchronously drive the bevel gear to rotate when the motor shaft of the second motor rotates.

22. The steering control device as claimed in claim 1, characterized in that, The lower housing also includes a mounting portion having a mounting cavity, the mounting portion being disposed adjacent to the receiving groove, and the mounting cavity being connected to the receiving groove for mounting the drive assembly.

23. The steering control device as claimed in claim 1, characterized in that, The lower housing also includes a fixing bracket, which has a fixing connection part and a locking part. The fixing connection part is fixedly connected to the lower housing, and the locking part is used to fixally connect to the sleeve below the steering wheel, so as to fix the lower housing below the upper housing.

Images