Sowing device and system and unmanned equipment

Abstract

The utility model relates to the technical field of unmanned equipment, in particular to a sowing device, a sowing system and unmanned equipment, the sowing device can be used for the sowing system of the unmanned equipment, the sowing device comprises a motor, a throwing disc and two elastic pieces, the throwing disc is connected with an output shaft of the motor, and the output shaft of the motor drives the throwing disc to swing back and forth through forward and reverse rotation; the first end of any elastic piece is connected to a fixed position and rotationally connected with an entity at the fixed position, the second end of any elastic piece is rotationally connected with the throwing disc or the swing piece synchronously swinging along with the throwing disc, and the second ends of the two elastic pieces can swing along with the throwing disc; when the projecting disc is located at the middle position, the length extension directions of the two elastic pieces point to the swinging center of the projecting disc; when the throwing disc swings, swinging of the throwing disc is converted into axial deformation of any elastic piece, and the two elastic pieces can cooperatively drive the throwing disc to reversely swing when releasing elastic potential energy. The sowing device can reduce the power consumption of the motor through mutual cooperation of the two elastic pieces.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned equipment, and in particular to a spreading device, a system and unmanned equipment. Background Art

[0002] Unmanned equipment, such as drones and autonomous vehicles, is widely used in the field of plant protection technology, specifically for operations such as seed sowing and watering. Unmanned equipment used for seed sowing requires a sowing system to be installed on the unmanned equipment itself. The sowing system typically includes a material box, a feeding device, and a sowing device. The material box is connected to the sowing device via the feeding device. The material box is used to store seeds and other materials. The feeding device is used to transport the materials output from the material box to the sowing device, which is used to sow the materials. The sowing device includes a motor and a spinner connected to the motor. The motor drives the spinner to swing back and forth, thereby beating the materials out.

[0003] Existing spreading devices using oscillating discs have a motor connected to the discs via a crank-connecting rod mechanism. The motor only needs to rotate rapidly in one direction to drive the crank-connecting rod mechanism, converting the motor's circular motion into reciprocating oscillation of the discs. However, this transmission method is complex, faces numerous reliability challenges, and is costly. Utility Model Content

[0004] The utility model provides a novel swing-type disk spreading device, in which the output shaft of a motor directly drives the disk, and the reciprocating swing of the disk can be achieved by controlling the forward and reverse rotation of the output shaft of the motor. However, using the output shaft of the motor to drive the disk to swing back and forth requires the motor to be constantly stopped and accelerated in the reverse direction, resulting in extremely high power consumption and severe heat generation of the motor, which not only affects the battery life of the battery that provides power to the motor but also easily burns out the motor. Therefore, elastic members are also configured to utilize the elastic potential energy released by the elastic members to drive the disk to swing in the reverse direction. However, there is an antagonistic effect between the elastic members, which leads to a reduced conversion rate of the elastic potential energy of the elastic members into the power for the disk to swing.

[0005] The spreading device provided by the present invention can be used in the spreading system of unmanned equipment, and the spreading device can not only reduce the power consumption of the motor and improve the problem of serious motor heating, thereby helping to extend the life of the battery that provides power to the motor and effectively improve the problem of motor burning, but also enable the elastic parts to cooperate with each other, and improve the problem of reduced conversion rate of the elastic potential energy of the elastic parts into the swinging power of the spinner due to the mutual confrontation between multiple elastic parts.

[0006] The embodiment of the present utility model is achieved as follows:

[0007] In a first aspect, the present invention provides a spreading device, comprising:

[0008] Motor;

[0009] The spinning disc is connected to the output shaft of the motor. When the spreading device is working, the output shaft of the motor drives the spinning disc to swing back and forth through forward and reverse rotation; and

[0010] A first elastic member and a second elastic member, wherein the first end of the first elastic member and the first end of the second elastic member are respectively connected to a fixed position and are rotatably connected to the entity at the fixed position, the second end of the first elastic member and the second end of the second elastic member are both rotatably connected to the spinning disk or the oscillating member that oscillates synchronously with the spinning disk, and the second end of the first elastic member and the second end of the second elastic member can oscillate with the spinning disk;

[0011] When the spinning disc is in the middle position, the length extension directions of the first elastic member and the second elastic member both point to the swing center of the spinning disc;

[0012] When the spinning disc swings, the swing of the spinning disc is converted into axial deformation of the first elastic member and the second elastic member, and the first elastic member and the second elastic member can cooperate to drive the spinning disc to swing in the opposite direction when releasing elastic potential energy.

[0013] In an optional embodiment, the first elastic member and the second elastic member are both in a stretched state when the spinning disc is stationary or oscillating.

[0014] In an optional embodiment, the spinner is configured to be able to swing back and forth around its own swing center on both sides of a set axis; the first elastic member and the second elastic member are respectively located on both sides of the set axis.

[0015] In an optional embodiment, when the spinner is located at a neutral position, the first elastic member and the second elastic member are symmetrically distributed on both sides of the set axis.

[0016] In an optional embodiment, when the spinner is located at a neutral position, the lengthwise extension direction of the first elastic member coincides with the lengthwise extension direction of the second elastic member.

[0017] In an optional embodiment, the spinner is configured to be able to swing back and forth around its own swing center on both sides of a set axis; the first elastic member and the second elastic member are located on the same side of the set axis.

[0018] In an optional embodiment, the swing member includes a swing arm member provided on the output shaft of the motor, and the second end of the first elastic member and the second end of the second elastic member are rotatably connected to two ends of the swing arm member respectively.

[0019] In an optional embodiment, at least one of the second end of the first elastic member and the second end of the second elastic member is provided with a connecting head, the connecting head is provided with a first axial hole, the swing arm member includes two spaced-apart clamping arms, the clamping arms are provided with a second axial hole, the connecting head is provided between the two clamping arms, and the first axial hole and the second axial hole are opposite to each other and are passed through by a first rotating shaft.

[0020] In an optional embodiment, the spinner is connected to the output shaft of the motor via a swing arm.

[0021] In an optional embodiment, the spreading device further includes a support member, the entity at the fixed position is the support member, the support member includes a radial mounting wall arranged on the output shaft of the motor, and the fixed position is located on the mounting wall.

[0022] In an optional embodiment, a connecting seat is provided at a fixed position of the mounting wall, and at least one of the first end of the first elastic member and the first end of the second elastic member is rotatably connected to the support member through the connecting seat.

[0023] In an optional embodiment, at least one of the first end of the first elastic member and the first end of the second elastic member is provided with a connecting head, the connecting head is provided with a first axial hole, the connecting seat is provided with a plug hole and a third axial hole connected to the plug hole, the connecting head is plugged into the plug hole, the first axial hole is opposite to the third axial hole and is passed through by a second rotating shaft.

[0024] In an optional embodiment, the first elastic member and the second elastic member are both arranged on a plane parallel to the swinging plane of the spinneret, and the elastic force directions provided by the first elastic member and the second elastic member are perpendicular to the axial direction of the output shaft of the motor.

[0025] In an optional embodiment, at least one of the first elastic member and the second elastic member includes a spring, and both ends of the spring are provided with a connecting head, and the connecting head is provided with a spiral groove. When the coil of the spring is screwed into the spiral groove, the connecting head and the spring are fixed.

[0026] In an optional embodiment, the connector is connected to a rib, and the end of the spring can abut against the rib, and the rib is used to prevent the spring from being displaced along its axial direction.

[0027] In an optional embodiment, the spreading device further comprises a support member having a first side and a second side disposed opposite to each other, the spinning disc is arranged on the first side, the motor is assembled on the second side, and the output shaft of the motor passes through the support member and is connected to the spinning disc.

[0028] In an optional embodiment, the spinning disc includes a disc body and a paddle connected to one side of the disc body, the output shaft of the motor is connected to the disc body, the paddle swings with the disc body, and is used to spread the material out, and the first elastic member and the second elastic member are both located on the side of the disc body away from the paddle.

[0029] In an optional embodiment, the spreading device further includes a support member, the motor is fixedly assembled on the support member, the support member is provided with a receiving groove, the first elastic member and the second elastic member are at least partially located in the receiving groove, and the entity at the fixed position is the support member.

[0030] In an optional embodiment, the spreading device further comprises a shielding cover connected to the support member, and the shielding cover is used to shield the slot opening of the accommodating slot.

[0031] In a second aspect, the present invention provides a spreading system, comprising a material box and a spreading device according to any one of the aforementioned embodiments, wherein the material box is connected to the spreading device, and the material in the material box is spread out through the spreading device.

[0032] In an optional embodiment, the spreading system further includes a feeding device, through which the material box is connected to the spreading device, and the feeding device is used to receive the material output from the material box and transport the received material to the spreading device.

[0033] In a third aspect, the present invention provides an unmanned device, comprising an unmanned device body and a spreading system according to any one of the aforementioned embodiments, wherein the spreading system is arranged on the unmanned device body.

[0034] The beneficial effects of the sowing device of the embodiment of the utility model include: the sowing device provided by the embodiment of the utility model includes a motor, a spinning disc, a first elastic member and a second elastic member, the spinning disc is connected to the output shaft of the motor, and when the sowing device is working, the output shaft of the motor drives the spinning disc to swing back and forth by forward and reverse rotation; the first end of the first elastic member and the first end of the second elastic member are respectively connected to a fixed position and are connected to the entity rotation at the fixed position, the second end of the first elastic member and the second end of the second elastic member are rotationally connected to the spinning disc or a swinging member that swings synchronously with the spinning disc, and the first elastic member and the second elastic member can both swing with the spinning disc; when the spinning disc is in the middle position, the length extension directions of the first elastic member and the second elastic member both point to the swing center of the spinning disc; when the spinning disc swings, the swing of the spinning disc is converted into axial deformation of the first elastic member and the second elastic member, and the first elastic member and the second elastic member can cooperatively drive the spinning disc to swing in the opposite direction when releasing elastic potential energy. Such arrangement ensures that the first elastic member and the second elastic member are not in a state of mutual confrontation when releasing elastic potential energy, but cooperate with each other, thereby improving the problem of decreased energy conversion efficiency, that is, improving the problem that the elastic potential energy released by one of the first elastic member and the second elastic member will be simultaneously converted into the kinetic energy of the spinner and the elastic potential energy of the other of the first elastic member and the second elastic member, thereby improving the problem of reduced conversion of the elastic potential energy of the elastic member into the kinetic energy of the spinner, ensuring that the motor can reliably reduce power consumption, that is, through the centripetal installation of the elastic member, the first elastic member and the second elastic member will be extended at the same time no matter in which direction the spinner swings, and the elastic potential energy released by the first elastic member and the second elastic member can provide torque for returning the spinner to the neutral position, thereby ensuring that the first elastic member and the second elastic member can cooperate with each other, rather than confront each other.

[0035] The spreading system of the embodiment of the present invention includes all the beneficial effects of the aforementioned spreading device. For example, when releasing elastic potential energy, the first elastic member and the second elastic member are not in a state of mutual confrontation, but cooperate with each other, which can improve the problem of decreased energy conversion efficiency.

[0036] The unmanned equipment of the embodiment of the present invention includes all the beneficial effects of the aforementioned spreading system. For example, when releasing elastic potential energy, the first elastic member and the second elastic member are not in a state of mutual confrontation, but cooperate with each other, which can improve the problem of decreased energy conversion rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 This is a schematic structural diagram of the load support and spreading system of the unmanned equipment in an embodiment of the present utility model;

[0039] Figure 2 This is a partial structural diagram of the spreading system in an embodiment of the present utility model;

[0040] Figure 3 The structure of the spreading device in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0041] Figure 4 Schematic diagram of the reciprocating swing of the spinning disc of the spreading device in an embodiment of the present utility model;

[0042] Figure 5 This is a schematic diagram of the exploded structure of the spreading device in an embodiment of the present utility model;

[0043] Figure 6 It is a partial structural diagram of the spreading device in the embodiment of the present utility model;

[0044] Figure 7 A schematic diagram of the reciprocating swing of a spinning disc of a spreading device in accordance with a related art embodiment;

[0045] Figure 8 Schematic diagram of the reciprocating swing of the spinning disc of the spreading device in the second embodiment of the related art;

[0046] Figure 9 Schematic diagram of the reciprocating swing of the spinning disc of the spreading device in the third embodiment of the related art;

[0047] Figure 10 It is a structural schematic diagram of a spreading device in the related art in which an elastic member is bent when the spinning disc swings;

[0048] Figure 11 This is a schematic structural diagram of another embodiment of the present invention in which the first elastic member and the second elastic member are respectively on the same side of the set axis;

[0049] Figure 12 A schematic diagram of a structure in which multiple elastic members are symmetrically distributed on both sides of a set axis in another embodiment of the present invention;

[0050] Figure 13 This is a schematic structural diagram of a connector in an embodiment of the present invention;

[0051] Figure 14 This is a schematic structural diagram of the swing arm member in an embodiment of the present utility model;

[0052] Figure 15 The structure of the spreading device in the embodiment of the utility model is shown as follows Figure 2 .

[0053] Icons: 100-load bracket; 110-spreading system; 111-material box; 112-feeding device; 113-material cover; 114-material port; 020-spreading device; 200-motor; 300-throwing disc; 310-disc body; 320-paddle; 400-support member; 410-accommodating groove; 411-mounting wall; 420-connecting seat; 421-plug hole; 422-third axis hole; 423-second rotating shaft; 430-shielding cover; 510-elastic member; 511-first elastic member; 512-second elastic member; 520-connector; 521-first axis hole; 522-spiral groove; 523-rib; 610-swing arm member; 611-clamping arm; 612-second axis hole; 613-first rotating shaft; a-setting axis. DETAILED DESCRIPTION

[0054] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0055] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0056] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0057] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., etc., are used solely for distinction and should not be construed as indicating or implying relative importance.

[0058] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0059] Please refer to Figure 1 This embodiment provides an unmanned device, which may refer to a drone; of course, in other embodiments, the unmanned device may also refer to an unmanned vehicle, which is not specifically limited here.

[0060] Please refer to Figure 1 and Figure 2 The unmanned device includes an unmanned device body and a sowing system 110 disposed on the unmanned device body. Specifically, the unmanned device body includes a load support 100, and the sowing system 110 is assembled on the load support 100. The sowing system 110 includes a material box 111, a feeding device 112, and a sowing device 020. The material box 111 is assembled on the load support 100 and connected to the sowing device 020 via the feeding device 112. The material box 111 is used to store materials such as seeds. The feeding device 112 is used to receive materials output by the material box 111 and transport the received materials to the sowing device 020. The sowing device 020 is used to sow the materials. The unmanned device body can refer to the drone body.

[0061] It should be understood that the feeding device 112 is not a necessary structure. In other embodiments, the material box 111 may not be connected to the sowing device 020 through the feeding device 112, that is, the material output by the material box 111 does not need to be transported through the feeding device 112, but directly falls on the sowing device 020 for sowing.

[0062] Please refer to Figure 2 and Figure 3 The spreading device 020 of this embodiment includes a material cover 113, a motor 200, a support 400 and a spinning disc 300. The material cover 113 is provided with a material port 114, and the material cover 113 is connected between the feeding device 112 and the support 400; the spinning disc 300 is located between the material cover 113 and the support 400; the motor 200 is assembled on the support 400, and the output shaft of the motor 200 is transmission-connected to the spinning disc 300, for driving the spinning disc 300 to swing back and forth around its own swing center on both sides of the set axis a. The swinging spinning disc 300 can spread the material that falls from the material port 114 between the material cover 113 and the support 400.

[0063] Furthermore, the support member 400 has a first side and a second side disposed opposite each other, the first side being disposed opposite the material cover 113, the spinner 300 being disposed on the first side, the motor 200 being mounted on the second side, and the output shaft of the motor 200 passing through the support member 400 to connect to the spinner 300. This arrangement improves the integration of the spreading device 020.

[0064] The spinning disc 300 includes a disc body 310 and a paddle 320 connected to one side of the disc body 310. The output shaft of the motor 200 is connected to the disc body 310. The paddle 320 is distributed opposite to the material opening 114, and the paddle 320 swings with the disc body 310 and is used to spread the material out.

[0065] Optionally, in some embodiments, the motor 200 may be connected to the spinner 300 via a reduction gearbox, which is not specifically limited herein.

[0066] In the related art, the output shaft of the motor 200 is used to drive the spinner 300 to swing back and forth in forward and reverse rotation, which requires the motor 200 to constantly stop and accelerate in the reverse direction, resulting in extremely high power consumption and severe heat generation of the motor 200, which not only affects the battery life of the battery that provides power to the motor 200, but also easily burns the motor 200.

[0067] In order to improve the above-mentioned problem, the spreading device 020 of the present embodiment further includes an elastic member 510, wherein a first end of the elastic member 510 is connected to a fixed position and is rotatably connected to an entity at the fixed position. Specifically, the first end of the elastic member 510 is rotatably connected to the support member 400, that is, the entity at the fixed position refers to the support member 400; the second end of the elastic member 510 is rotatably connected to the spinning disc 300 or an oscillating member that oscillates synchronously with the spinning disc 300; when the spinning disc 300 oscillates, the second end of the elastic member 510 oscillates along with the spinning disc 300 and simultaneously rotates about the position to which it is connected. The first end of the elastic member 510 does not oscillate along with the spinning disc 300 but also rotates about the fixed position to which it is connected, so that the elastic member 510 can always maintain a straight shape during the swinging of its second end, the swinging motion of the spinning disc 300 can be converted into axial deformation of the elastic member 510, and the elastic member 510 can drive the spinning disc 300 to swing in the opposite direction when releasing its elastic potential energy. With such a configuration, the elastic deformation of the elastic member 510 can be utilized to absorb and store energy, so that the elastic member 510 is adapted to the swing frequency of the spinner 300, and the spinner 300 is assisted in deceleration and reverse acceleration, thereby reducing the energy consumption of the motor 200 during emergency stop and reverse acceleration, improving the problem of serious heating of the motor 200, and thus helping to prolong the life of the battery that provides power to the motor 200, and effectively improving the problem of burning of the motor 200; moreover, there is no need to additionally set up other motion conversion mechanisms to convert the circular motion of the spinner 300 into linear motion (for example: linear motion components such as slide rail components, gear racks, etc.); the variable length characteristic of the elastic member 510 is utilized to directly absorb and release energy during the circular motion, thereby avoiding unnecessary energy loss, and more energy can be converted into the elastic potential energy of the elastic member 510, so that the elastic potential energy of the elastic member 510 can be utilized to fully reduce the energy consumption of the motor 200 driving the spinner 300 to rotate back and forth.

[0068] In the related art, the spreading device 020 includes only one elastic member 510. In order to provide sufficient torque to the spinning disc 300, the elastic member 510 needs to be made very large. In order to improve the problem of needing to make the elastic member 510 very large, this embodiment uses the combined force of multiple elastic members 510 (i.e., greater than or equal to two elastic members 510) to provide torque. The following embodiments are included, taking two elastic members 510 as an example: Embodiment 1, please refer to Figure 7 When the spinning disc 300 is in the middle position, the two elastic members 510 are in a natural length (i.e., neither stretched nor compressed). That is, when the spinning disc 300 is stationary, the two elastic members 510 are in a state of neither stretching nor compressing. When the spinning disc 300 swings, one of the elastic members 510 is stretched and the other elastic member 510 is compressed. For the second embodiment, please refer to Figure 8, the two elastic members 510 are in a stretched state when the spinning disc 300 is stationary or swinging, but the degree of stretching is different. When the spinning disc 300 is in the middle position, the two elastic members 510 are balanced. When the spinning disc swings, the tension of one elastic member 510 becomes larger and the tension of the other elastic member 510 becomes smaller. For implementation method three, please refer to Figure 9 The two elastic members 510 are in a compressed state when the spinning disc 300 is stationary or swinging, but the degree of compression is different. When the spinning disc 300 is in the middle position, the two elastic members 510 are balanced in force. When the spinning disc swings, the thrust of one elastic member 510 becomes greater, while the thrust of the other elastic member 510 becomes smaller.

[0069] However, since the swinging motion of the disk 300 is an arc motion, the elastic member 510 of the first and third embodiments will be subjected to a force different from the axial force of the spring provided by the disk 300 when compressed, and this force may cause the spring to bend (e.g. Figure 10 To address this issue, a cylindrical retainer can be provided outside the elastic member 510 to confine the elastic member 510 within the retainer and prevent it from bending. However, even in this manner, the elastic member 510 will still be subjected to non-axial forces, causing friction between the elastic member 510 and the retainer's cylindrical wall, significantly impacting the life of the elastic member 510. The second embodiment, however, does not require a retainer to confine the elastic member 510, resulting in a simpler and more reliable structure and greater advantages.

[0070] However, in the solution of the second embodiment, the two elastic members 510 are always in opposition to each other. When the spinner 300 swings, the forces between the elastic members 510 are in opposition to each other, that is, the elastic members 510 cannot cooperate with each other, which will lead to a decrease in the energy conversion rate, because the elastic potential energy of the elastic member 510 will be simultaneously converted into the kinetic energy of the spinner 300 and the elastic potential energy of the other elastic member 510, which will result in a reduction in the kinetic energy that can be provided to the spinner 300, and the power consumption reduction effect of the motor 200 will be discounted.

[0071] To improve the above problems, please refer to Figure 4, the spreading device 020 of this embodiment includes two elastic members 510, which are a first elastic member 511 and a second elastic member 512 respectively; along the length extension direction of the swing axis of the spinning disc 300, the swing arm member 610 is located between the support member 400 and the spinning disc 300, the middle part of the swing arm member 610 is connected to the output shaft of the motor 200, and the middle part of the swing arm member 610 is transmission-connected to the spinning disc 300, so that the output shaft of the motor 200 is transmission-connected to the disc body 310 of the spinning disc 300 through the swing arm member 610; the two ends of the swing arm member 610 in the length extension direction are respectively connected to the second end of the first elastic member 511 and the second end of the second elastic member 512; when the spinning disc 300 is in the middle position, the length extension direction of the elastic member 510 points to the swing center of the spinning disc 300; specifically, when the spinning disc 300 is in the middle position, the length extension direction of the elastic member 510 points to the swing center of the spinning disc 300; When the spinning tray 300 is in the middle position, the length extension directions of the first elastic member 511 and the second elastic member 512 both point to the swing center of the spinning tray 300, and the length extension directions of the first elastic member 511 and the second elastic member 512 coincide with and are perpendicular to the set axis a. The first elastic member 511 and the second elastic member 512 are symmetrically distributed on both sides of the set axis a in the horizontal direction. The first elastic member 511 and the second elastic member 512 are both in a stretched state when the spinning tray 300 is stationary and are also in a stretched state when the spinning tray 300 is swinging. When the spinning tray 300 swings, the swinging of the spinning tray 300 is converted into axial deformation of the first elastic member 511 and the second elastic member 512 respectively. When the elastic potential energy is released, the first elastic member 511 and the second elastic member 512 can cooperatively drive the spinning tray 300 to swing in the opposite direction.

[0072] Such an arrangement ensures that the first elastic member 511 and the second elastic member 512 do not oppose each other when releasing elastic potential energy, but rather cooperate with each other. This can improve the problem of reduced energy conversion efficiency. In other words, it can improve the problem that the elastic potential energy released by one of the first elastic member 511 and the second elastic member 512 is simultaneously converted into kinetic energy of the spinner 300 and the elastic potential energy of the other. This further improves the problem that the elastic potential energy of the first elastic member 511 and the second elastic member 512 is converted into less kinetic energy of the spinner 300, thereby ensuring that the power consumption of the motor 200 is reliably reduced. In other words, by the centripetal installation of the first elastic member 511 and the second elastic member 512, the first elastic member 511 and the second elastic member 512 are simultaneously extended regardless of the direction in which the spinner 300 swings. The elastic potential energy released by the first elastic member 511 and the second elastic member 512 can provide torque to restore the spinner 300 to its neutral position, thereby ensuring that the first elastic member 511 and the second elastic member 512 cooperate with each other rather than oppose each other.

[0073] For further information, please refer to Figure 5The elastic member 510 is positioned between the support member 400 and the spinning disc 300 along the longitudinal extension of the swing axis of the spinning disc 300. Specifically, the elastic member 510 is positioned on a plane parallel to the swing plane of the spinning disc 300. Specifically, the elastic member 510 is positioned on the side of the spinning disc 300 body 310 facing away from the paddle 320, and the direction of the elastic force provided by the elastic member 510 is perpendicular to the axial direction of the output shaft of the motor 200. This arrangement prevents the elastic member 510 from interfering with the spreading of the material by the spinning disc 300 and ensures that the elastic potential energy of the elastic member 510 is converted as much as possible into power for the reverse swing of the spinning disc 300, thereby improving efficiency.

[0074] Of course, in other embodiments, the elastic member 510 may also be disposed on a plane that is not parallel to the swinging plane of the spinner 300 .

[0075] Alternatively, in other embodiments, the first end of the elastic member 510 may also be rotatably connected to the load bracket 100 , etc., which is not specifically limited here.

[0076] In this embodiment, please refer to Figure 5 and Figure 6 The swinging member includes a swinging arm member 610 arranged on the output shaft of the motor 200, the spinner 300 is connected to the output shaft of the motor 200 through the swinging arm member 610, and the second end of the elastic member 510 is rotatably connected to the end of the swinging arm member 610; with such an arrangement, the elastic member 510 can reliably drive the spinner 300 to swing in the opposite direction.

[0077] In one embodiment, when the spinner 300 is in the middle position, the length extension directions of the first elastic member 511 and the second elastic member 512 both point to the swing center of the spinner 300, and the first elastic member 511 and the second elastic member 512 are asymmetrically distributed on both sides of the set axis a, or the first elastic member 511 and the second elastic member 512 are distributed on the same side of the set axis a, which is not specifically limited here.

[0078] It should be understood that in other embodiments, the number of elastic members 510 may be increased or decreased as needed, for example, four elastic members 510 , etc., which is not specifically limited here.

[0079] It should be noted that, in embodiments where the number of elastic members 510 is greater than two, the problem of lack of coordination between the elastic members 510 can be solved by including only two centripetally arranged elastic members 510. For example, in an embodiment where the number of elastic members 510 is four, two of the elastic members 510 are respectively a first elastic member 511 and a second elastic member 512, whose length extension directions point toward the swing center of the spinning tray 300 when the spinning tray 300 is in the neutral position, while the length extension directions of the other two elastic members 510 do not need to point toward the center of the spinning tray 300. Of course, if the length extension directions of all the elastic members 510 point toward the swing center of the spinning tray 300 when the spinning tray 300 is in the neutral position, then all the elastic members 510 can coordinately drive the spinning tray 300 to swing in the opposite direction.

[0080] The connection method between the output shaft of the motor 200 and the swing arm 610, and the connection method between the swing arm 610 and the spinner 300 include but are not limited to plugging, clamping, and welding, which are not specifically limited here.

[0081] It should be understood that in other embodiments, the swing arm 610 is connected to the output shaft of the motor 200 but is not connected to the spinneret 300 , that is, the spinneret 300 is not connected to the output shaft of the motor 200 through the swing arm 610 .

[0082] In this embodiment, please refer to Figure 6 The first elastic member 511 and the second elastic member 512 are centrally symmetrically distributed about the swing center of the spinning disk 300. When the spinning disk 300 swings, the radial forces applied by the first elastic member 511 and the second elastic member 512 to the output shaft of the motor 200 can offset each other, and the first elastic member 511 and the second elastic member 512 extend or shorten synchronously. In this way, the problem of shaft breakage can be improved. That is, the radial force component of the output shaft of the motor 200 exerted by the first elastic member 511 and the radial force component of the output shaft of the motor 200 exerted by the second elastic member 512 offset each other, thereby improving the problem of the risk of the output shaft of the motor 200 being pulled by the radial force component and causing shaft breakage.

[0083] Of course, in the embodiment where the number of elastic members 510 is 2 or more, it is not necessary for the plurality of elastic members 510 to be centrally symmetrically distributed about the swing center of the spinner 300. In other embodiments, the plurality of elastic members 510 do not need to be centrally symmetrically distributed about the swing center of the spinner 300. For example, in other embodiments, the first elastic member 511 and the second elastic member 512 can be distributed on the same side of the set axis a (e.g., Figure 11 As shown); or, in other embodiments, the plurality of elastic members 510 may be asymmetrically distributed on both sides of the set axis a; or, the plurality of elastic members 510 may be symmetrically but non-centrosymmetrically distributed on both sides of the set axis a, etc. (as shown Figure 12 ), which is not specifically limited here.

[0084] The two elastic members 510 (i.e., the first elastic member 511 and the second elastic member 512) of this embodiment are similar in their own structures and their connection methods with the swing arm member 610 and the support member 400. Only one of the elastic members 510 is introduced in detail here.

[0085] In this embodiment, please refer to Figure 5 、 Figure 13 and Figure 14 The second end of the elastic member 510 is provided with a connector 520, which is provided with a first axial hole 521. The swing arm 610 includes two spaced-apart clamping arms 611, each of which is provided with a second axial hole 612. The connector 520 is inserted between the two clamping arms 611, and the first axial hole 521 and the second axial hole 612 are opposite each other and pass through a first rotating shaft 613. This arrangement ensures easy and stable assembly of the elastic member 510 and the swing arm 610, and ensures that the second end of the elastic member 510 can rotate smoothly about the first rotating shaft 613.

[0086] Furthermore, the support member 400 includes a mounting wall 411 disposed radially of the output shaft of the motor 200. The fixed position is located on the mounting wall 411, and the second end of the elastic member 510 is rotatably connected to the mounting wall 411. This arrangement ensures that the elastic member 510 is reliably disposed between the spinner 300 and the support member 400, effectively preventing the elastic member 510 from interfering with the spinner 300 in spreading the material.

[0087] Furthermore, a connecting seat 420 is provided at a fixed position of the mounting wall 411, and the first end of the elastic member 510 is rotatably connected to the support member 400 via the connecting seat 420. The provision of the connecting seat 420 ensures the reliability of the rotatable connection between the first end of the elastic member 510 and the fixed position.

[0088] Optionally, the first end of the elastic member 510 is also provided with a connector 520, and the connecting base 420 is provided with an insertion hole 421 and a third shaft hole 422 connected to the insertion hole 421. The connector 520 at the first end of the elastic member 510 is inserted into the insertion hole 421. The first shaft hole 521 and the third shaft hole 422 are opposite and pass through the second rotation axis 423. This arrangement ensures easy and stable assembly of the elastic member 510 and the connecting base 420, and ensures that the first end of the elastic member 510 can rotate smoothly about the second rotation axis 423.

[0089] The connection method between any end of the elastic member 510 and the corresponding connector 520 can be selected as needed; please refer to Figure 5 and Figure 13In this embodiment, the elastic member 510 includes a spring, each end of which is provided with a connector 520. The connector 520 is provided with a spiral groove 522. When the coil of the spring is screwed into the spiral groove 522, the connector 520 and the spring are fixed. This arrangement ensures easy operation and stability of the connection between the spring and the connector 520.

[0090] Furthermore, connector 520 is connected to a rib 523, against which the end of the spring abuts, preventing the spring from axially displacing. This arrangement not only alleviates stress concentration in the spring but also ensures that the spring can adapt well to various complex and harsh working conditions, such as vibration, high-frequency tension, and impact, significantly improving the spring's lifespan and reliability.

[0091] Of course, in other embodiments, the elastic member 510 comprises a spring, and the connector 520 connected to its end is a spring wound to form a hook; or, in other embodiments, the connector 520 is a hook, and the end of the spring is wound to form a constriction structure, so that the hook is embedded in the constriction structure of the spring end, thereby reducing the problem of spring stress concentration. Alternatively, in other embodiments, the structures of the two elastic members 510 can be different, and the first and second ends of the two elastic members 510 can be connected to the connecting base 420 and the swing arm member 610 respectively in different ways. For example, the first end of the first elastic member 511 is rotatably connected to the connecting base 420 via the second rotating shaft 423, so as to be connected to the spinner 300 via the connecting base 420, while the first end of the second elastic member 512 is directly rotatably connected to the spinner 300 via the second rotating shaft 423, without passing through the connecting base 420.

[0092] In other embodiments, the elastic member 510 may further include an elastic rubber strip, etc., which is not specifically limited here.

[0093] In this embodiment, please refer to Figure 5 The support member 400 is provided with a receiving groove 410, and the elastic member 510 is at least partially located in the receiving groove 410. The groove wall of the receiving groove 410 is the aforementioned mounting wall 411, and the connecting seat 420 is connected to the groove wall of the receiving groove 410. The provision of the receiving groove 410 provides a relatively small space for accommodating the elastic member 510 and allows the elastic member 510 to swing within the receiving groove 410. Compared with assembling the elastic member 510 in a large space, assembling the elastic member 510 in a relatively small space is easier to seal and protect. For example, the size of the shielding cover 430 connected to the support member 400 for shielding the receiving groove 410 can be made smaller.

[0094] Furthermore, the connecting seat 420 is directly integrally formed on the wall of the receiving groove 410. Of course, in other embodiments, the connection method of the connecting seat 420 and the wall of the receiving groove 410 can also be bonding, connecting with fasteners such as bolts, etc., which is not specifically limited here.

[0095] Furthermore, the two elastic members 510 are both embedded in the receiving groove 410 , that is, the first elastic member 511 and the second elastic member 512 are both embedded in the receiving groove 410 .

[0096] Further, please refer to Figure 5 and Figure 15 The spreading device 020 further includes a shielding cover 430 connected to the support member 400 and used to shield the notch of the receiving groove 410. This arrangement can reduce the interference of the material on the elastic member 510, thereby ensuring that the elastic member 510 reliably releases elastic potential energy to drive the spinner 300 to swing in the opposite direction.

[0097] The connection method between the shielding cover 430 and the support member 400 includes but is not limited to clamping, and connection through fasteners such as bolts.

[0098] It should be noted that the stretching and shortening of each elastic member 510 in this embodiment refers to the change in its length, and does not represent a change in its elasticity, that is, stretching and compression does not mean that the elastic member 510 is in a state of providing tension or thrust.

[0099] The unmanned equipment of this embodiment can use the sowing system 110 to sow seeds and other granular materials. The specific sowing process includes: the motor 200 drives the spinner 300 to swing back and forth, and during the swinging process of the spinner 300, the first elastic member 511 and the second elastic member 512 are elastically deformed, and the elastic potential energy released when the first elastic member 511 and the second elastic member 512 recover can be used to drive the spinner 300 to swing in the opposite direction.

[0100] To sum up, the spreading device 020 of the present invention can be used in the spreading system 110 of unmanned equipment. The spreading device 020 can reduce the power consumption of the motor 200, improve the problem of severe heating of the motor 200, and thus help to extend the battery life of the battery that provides power to the motor 200, and effectively improve the problem of burning of the motor 200; moreover, when the first elastic member 511 and the second elastic member 512 release elastic potential energy, they are not in a state of mutual confrontation, but cooperate with each other, which can improve the problem of decreased energy conversion rate.

[0101] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A spreading device, characterized in that: include: Motor (200); A spinning disc (300) is connected to the output shaft of the motor (200). When the spreading device is working, the output shaft of the motor (200) drives the spinning disc (300) to swing back and forth by rotating forward and reverse; and A first elastic member (511) and a second elastic member (512), wherein the first end of the first elastic member (511) and the first end of the second elastic member (512) are respectively connected to a fixed position and are rotationally connected to the entity at the fixed position, the second end of the first elastic member (511) and the second end of the second elastic member (512) are both rotationally connected to the spinner (300) or an oscillating member that swings synchronously with the spinner (300), and the second end of the first elastic member (511) and the second end of the second elastic member (512) can swing along with the spinner (300); When the spinning disc (300) is in a neutral position, the length extension directions of the first elastic member (511) and the second elastic member (512) both point to the swing center of the spinning disc (300); When the spinner (300) swings, the swing of the spinner (300) is converted into axial deformation of the first elastic member (511) and the second elastic member (512), and the first elastic member (511) and the second elastic member (512) can cooperatively drive the spinner (300) to swing in the opposite direction when releasing elastic potential energy.

2. The spreading device according to claim 1, characterized in that The first elastic member (511) and the second elastic member (512) are both in a stretched state when the spinner (300) is stationary or swinging.

3. The spreading device according to claim 1, characterized in that The spinning disc (300) is configured to be able to swing back and forth around its own swing center on both sides of a set axis (a); the first elastic member (511) and the second elastic member (512) are respectively located on both sides of the set axis (a).

4. The spreading device according to claim 3, characterized in that When the spinner (300) is located at the middle position, the first elastic member (511) and the second elastic member (512) are symmetrically distributed on both sides of the setting axis (a).

5. The spreading device according to claim 4, characterized in that When the spinner (300) is located at the middle position, the length extension direction of the first elastic member (511) and the length extension direction of the second elastic member (512) coincide with each other.

6. The spreading device according to claim 1, characterized in that The spinning disc (300) is configured to be able to swing back and forth around its own swing center on both sides of a set axis (a); the first elastic member (511) and the second elastic member (512) are located on the same side of the set axis (a).

7. The spreading device according to claim 1, characterized in that The swing member comprises a swing arm member (610) arranged on the output shaft of the motor (200), and the second end of the first elastic member (511) and the second end of the second elastic member (512) are rotatably connected to two ends of the swing arm member (610) respectively.

8. The spreading device according to claim 7, characterized in that At least one of the second end of the first elastic member (511) and the second end of the second elastic member (512) is provided with a connector (520), and the connector (520) is provided with a first axial hole (521). The swing arm member (610) includes two spaced-apart clamping arms (611), and the clamping arms (611) are provided with a second axial hole (612). The connector (520) is provided between the two clamping arms (611), and the first axial hole (521) and the second axial hole (612) are opposite to each other and are penetrated by a first rotating shaft (613).

9. The spreading device according to claim 7, characterized in that The spinning disc (300) is connected to the output shaft of the motor (200) via the swing arm (610).

10. The spreading device according to claim 9, characterized in that The spreading device further comprises a support member (400), the entity at the fixed position is the support member (400), the support member (400) comprises a radial mounting wall (411) arranged on the output shaft of the motor (200), and the fixed position is located on the mounting wall (411).

11. The spreading device according to claim 10, characterized in that A connecting seat (420) is provided at a fixed position of the mounting wall (411), and at least one of the first end of the first elastic member (511) and the first end of the second elastic member (512) is rotatably connected to the supporting member (400) via the connecting seat (420).

12. The spreading device according to claim 11, characterized in that At least one of the first end of the first elastic member (511) and the first end of the second elastic member (512) is provided with a connector (520), the connector (520) is provided with a first axial hole (521), the connecting seat (420) is provided with a plug hole (421) and a third axial hole (422) connected to the plug hole (421), the connector (520) is plugged into the plug hole (421), the first axial hole (521) is opposite to the third axial hole (422) and is penetrated by a second rotating shaft (423).

13. The spreading device according to claim 1, characterized in that The first elastic member (511) and the second elastic member (512) are both arranged on a plane parallel to the swinging plane of the spinneret (300), and the direction of the elastic force provided by the first elastic member (511) and the second elastic member (512) is perpendicular to the axial direction of the output shaft of the motor (200).

14. The spreading device according to claim 1, characterized in that At least one of the first elastic member (511) and the second elastic member (512) comprises a spring, both ends of the spring are provided with a connecting head (520), the connecting head (520) is provided with a spiral groove (522), and when the coil of the spring is screwed into the spiral groove (522), the connecting head (520) is fixed to the spring.

15. The spreading device according to claim 14, characterized in that The connecting head (520) is connected to a retaining edge (523), and the end of the spring can abut against the retaining edge (523). The retaining edge (523) is used to prevent the spring from being displaced along its axial direction.

16. The spreading device according to claim 1, characterized in that The spreading device further comprises a support member (400), wherein the support member (400) has a first side and a second side arranged opposite to each other, the spinner (300) is arranged on the first side, the motor (200) is assembled on the second side, and the output shaft of the motor (200) passes through the support member (400) and is connected to the spinner (300).

17. The spreading device according to claim 1, characterized in that The spinning disc (300) comprises a disc body (310) and a paddle (320) connected to one side of the disc body (310); the output shaft of the motor (200) is connected to the disc body (310); the paddle (320) swings with the disc body (310) and is used to spread the material; the first elastic member (511) and the second elastic member (512) are both located on the side of the disc body (310) facing away from the paddle (320).

18. The spreading device according to claim 1, characterized in that The spreading device further comprises a support member (400), the motor (200) is fixedly assembled on the support member (400), the support member (400) is provided with a receiving groove (410), the first elastic member (511) and the second elastic member (512) are at least partially located in the receiving groove (410), and the entity at the fixed position is the support member (400).

19. The spreading device according to claim 18, characterized in that The spreading device further comprises a shielding cover (430), the shielding cover (430) being connected to the support member (400), and the shielding cover (430) being used to shield the notch of the accommodating groove (410).

20. A spreading system, characterized in that: It comprises a material box (111) and the spreading device according to any one of claims 1 to 19, wherein the material box (111) is connected to the spreading device, and the material in the material box (111) is spread out through the spreading device.

21. The spreading system according to claim 20, characterized in that The spreading system further comprises a feeding device (112), the material box (111) is connected to the spreading device via the feeding device (112), and the feeding device (112) is used to receive the material outputted from the material box (111) and transport the received material to the spreading device.

22. An unmanned device, characterized in that: It comprises an unmanned equipment body and the spreading system according to any one of claims 20-21, wherein the spreading system is arranged on the unmanned equipment body.

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