Sowing device and system and unmanned equipment

Abstract

The invention relates to the technical field of unmanned equipment, in particular to a sowing device and system and unmanned equipment. The sowing device can be used for a sowing system of unmanned equipment; the sowing device comprises a motor, a throwing disc and two elastic mechanisms, the throwing disc is connected with an output shaft of the motor, and when the sowing device works, the motor drives the throwing disc to swing back and forth through forward and reverse rotation; when the throwing disc swings, the swinging motion of the throwing disc is converted into respective axial deformation of the two elastic mechanisms, and the two elastic mechanisms can drive the throwing disc to swing reversely when releasing elastic potential energy; and the radial forces applied to the output shaft of the motor by the two elastic mechanisms can be mutually counteracted. The sowing device can reduce the power consumption of the motor and improve the problem of serious heating of the motor, so that the endurance of a battery for providing electric energy for the motor is prolonged; moreover, the elastic mechanism can be prevented from providing radial force for the output shaft of the motor, the output shaft of the motor is prevented from being pulled, and the problem of shaft breakage is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of unmanned equipment technology, and more specifically, to a dispersing device, system, and unmanned equipment. Background Technology

[0002] Unmanned equipment, such as drones or unmanned 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 needs to be equipped with a sowing system. This system typically includes a hopper, a feeding device, and a sowing device. The hopper, connected to the sowing device via the feeding device, stores seeds and other materials. The feeding device transports the material from the hopper to the sowing device, which then sows the material. The sowing device includes a motor and a rotating disc connected to the motor's drive. The motor drives the rotating disc to oscillate back and forth, thus dispersing the material.

[0003] Existing seeding devices employ a swing-type swivel disc. The motor is connected to the disc 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 the reciprocating oscillation of the disc. However, this transmission method has a complex structure, faces numerous reliability challenges, and is costly. Summary of the Invention

[0004] This invention provides a novel oscillating spraying device with a spinning disc. The output shaft of a motor directly drives the spinning disc, and the reciprocating oscillation of the disc is achieved by controlling the forward and reverse rotation of the motor's output shaft. However, the inventors discovered that using the forward and reverse rotation of the motor's output shaft to drive the spinning disc requires constant emergency stops and reverse accelerations, resulting in extremely high power consumption and severe heat generation. This not only affects the battery's range but also risks burning out the motor. Therefore, an elastic element was added to utilize its released elastic potential energy to drive the spinning disc in the reverse direction. However, the inventors further discovered that the elastic element provides a radial force to the output shaft of the motor driving the spinning disc, causing the output shaft to be stretched and even risking breakage.

[0005] The seeding device provided by this invention can be used in the seeding system of unmanned equipment. This seeding device can reduce the power consumption of the motor, improve the problem of severe motor overheating, and thus help extend the battery life that provides power to the motor, effectively improving the problem of motor burnout. Moreover, it can prevent the elastic mechanism from providing radial force to the output shaft of the motor, avoid pulling on the output shaft of the motor, and thus effectively improve the problem of shaft breakage.

[0006] The embodiments of the present invention are implemented as follows:

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

[0008] Electric motor;

[0009] The swivel disc is connected to the output shaft of the motor. When the spreading device is working, the motor drives the swivel disc to swing back and forth by rotating forward and backward.

[0010] Two elastic mechanisms: when the slinger swings, the slinging motion of the slinger is converted into the axial deformation of each of the two elastic mechanisms. When the two elastic mechanisms release elastic potential energy, they can drive the slinger to swing in the opposite direction.

[0011] The radial forces exerted on the motor's output shaft by the two elastic mechanisms can cancel each other out.

[0012] In an optional implementation, the two elastic mechanisms are centrally symmetrically distributed with respect to the swing center of the swivel disc.

[0013] In an optional embodiment, the elastic mechanism includes an elastic element, the first end of which is connected to a fixed position and rotatably connected to a solid at the fixed position, and the second end of which is rotatably connected to a swivel disc or a swinging element that swings synchronously with the swivel disc.

[0014] In an optional implementation, when the swing disc is in the middle position, the length extension direction of the elastic elements of the two elastic mechanisms both point to the swing center of the swing disc; when the elastic elements of the two elastic mechanisms release elastic potential energy, they can cooperate to drive the swing disc to swing in the opposite direction.

[0015] In an optional implementation, the elastic elements of the two elastic mechanisms are centrally symmetrically distributed.

[0016] In an optional implementation, the elastic elements of the two elastic mechanisms are distributed horizontally at intervals on both sides of the swing center of the swivel disc.

[0017] In an optional embodiment, the swing member includes a first swing arm disposed on the output shaft of the motor, and a second end of the elastic member is rotatably connected to the end of the first swing arm.

[0018] In an optional embodiment, the second end of the elastic element is provided with a connector, the connector is provided with a first shaft hole, the first swing arm includes two spaced-apart clamping arms, the clamping arms are provided with a second shaft hole, the connector is provided between the two clamping arms, and the first shaft hole and the second shaft hole are opposite to each other and a first rotating shaft is passed through them.

[0019] In an optional implementation, the swivel disc is connected to the output shaft of the motor via a first swing arm.

[0020] In an optional embodiment, the spreading device further includes a support member, the entity at the fixed position being the support member, the support member including a mounting wall disposed radially on the output shaft of the motor, and the fixed position being located on the mounting wall.

[0021] In an optional embodiment, a connecting seat is provided at a fixed position on the mounting wall, and the first end of the elastic member is rotatably connected to the support member through the connecting seat.

[0022] In an optional embodiment, the first end of the elastic element is provided with a connector, the connector is provided with a first shaft hole, the connector is provided with a plug hole and a third shaft hole communicating with the plug hole, the connector is plugged into the plug hole, and the first shaft hole and the third shaft hole are opposite to each other and a second rotating shaft passes through them.

[0023] In an optional embodiment, the elastic element is disposed on a plane parallel to the swing plane of the swivel disc, and the direction of the elastic force provided by the elastic element is perpendicular to the output shaft axis of the motor.

[0024] In an optional embodiment, the elastic element includes a spring, with connectors at both ends of the spring. Each connector has a helical groove, and the connector is fixed to the spring when the spring's coil is screwed into the helical groove.

[0025] In an alternative embodiment, the connector is provided with a flange, and the end of the spring abuts against the flange, which is used to prevent the spring from displacing axially.

[0026] In an optional embodiment, the elastic mechanism includes an elastic element and a linear motion component. The linear motion components of the two elastic mechanisms are centrally symmetrically distributed with respect to the swing center of the swivel disc and are both engaged with the swivel disc transmission. Both linear motion components are used to convert the swing of the swivel disc into linear motion and respectively cause the corresponding elastic element to undergo axial deformation.

[0027] In an optional embodiment, the spreading device further includes a second swing arm that swings synchronously with the swivel disc, and the linear motion component includes a first slide rail and a second slide rail. The end of the second swing arm is slidably engaged with the first slide rail. The first slide rail and the second slide rail are slidably engaged, and the extension directions of the first slide rail and the second slide rail are perpendicular. An elastic element is disposed on the corresponding first slide rail or second slide rail.

[0028] When the disc swings, the end of the second swing arm slides within the first slide rail, causing the first slide rail to slide along the second slide rail, thereby causing the corresponding elastic element to undergo axial deformation.

[0029] In an optional embodiment, the linear motion component includes a slider, a third slide rail, and a rocker arm. The slider is slidably engaged with the third slide rail, and the two ends of the rocker arm are pivotally connected to the slider and the swing plate, respectively. When the swing plate swings and drives the rocker arm to swing, the rocker arm drives the slider to slide relative to the third slide rail, and the slider can cause the corresponding elastic element to undergo axial deformation.

[0030] Secondly, the present invention provides a spreading system, including a material bin and a spreading device according to any of the foregoing embodiments, wherein the material bin is connected to the spreading device, and the material in the material bin is spread out through the spreading device.

[0031] In an optional embodiment, the spreading system further includes a feeding device for receiving the material output from the hopper and conveying the received material to the spreading device.

[0032] Thirdly, the present invention provides an unmanned device, including an unmanned device body and a dispersing system according to any of the foregoing embodiments, wherein the dispersing system is disposed on the unmanned device body.

[0033] The beneficial effects of the spreading device in this embodiment of the invention include: the spreading device provided in this embodiment of the invention includes a motor, a swivel disc, and two elastic mechanisms. The swivel disc is connected to the output shaft of the motor. When the spreading device is working, the motor drives the swivel disc to oscillate back and forth by rotating in both directions. When the swivel disc oscillates, the oscillation motion of the swivel disc is converted into axial deformation of each of the two elastic mechanisms. When the two elastic mechanisms release their elastic potential energy, they can drive the swivel disc to oscillate in the opposite direction. The radial forces exerted by the two elastic mechanisms on the output shaft of the motor can cancel each other out. Because the radial forces exerted by the two elastic mechanisms on the output shaft of the motor can cancel each other out, the radial tension on the output shaft of the motor is avoided, effectively improving the problem of shaft breakage of the motor output shaft.

[0034] The spreading system of this invention includes all the beneficial effects of the aforementioned spreading device, such as: avoiding radial pulling on the motor output shaft, effectively improving the problem of motor output shaft breakage.

[0035] The unmanned equipment of this invention includes all the beneficial effects of the aforementioned seeding system, such as: avoiding radial pulling on the motor output shaft, effectively improving the problem of motor output shaft breakage. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a partial structural schematic diagram of the unmanned equipment disclosed herein;

[0038] Figure 2 This is a partial structural diagram of the dissemination system disclosed herein;

[0039] Figure 3 This is a schematic diagram of the dispersing device disclosed herein;

[0040] Figure 4 This is a schematic diagram of the dispersing device according to Embodiment 1 of this disclosure;

[0041] Figure 5 Schematic diagram of a dispensing device with a single elastic mechanism Figure 1 ;

[0042] Figure 6 This is a schematic diagram of the reciprocating oscillation of the dispersing disc of the spreading device in Embodiment 2 of this disclosure;

[0043] Figure 7 Schematic diagram of a dispensing device with a single elastic mechanism Figure 2 ;

[0044] Figure 8 This is a schematic diagram of the reciprocating oscillation of the dispersing disc of the spreading device in Embodiment 3 of this disclosure;

[0045] Figure 9 Schematic diagram of a dispensing device with a single elastic mechanism Figure 3 ;

[0046] Figure 10 Schematic diagram of a non-centrosymmetric dispersing device with two elastic mechanisms Figure 1 ;

[0047] Figure 11 This is a schematic diagram of the reciprocating oscillation of the dispersing disc of the spreading device in Embodiment 4 of this disclosure;

[0048] Figure 12 This is an exploded structural diagram of the spreading device according to Embodiment 4 of this disclosure;

[0049] Figure 13 Schematic diagram of a non-centrosymmetric dispersing device with two elastic mechanisms Figure 2 ;

[0050] Figure 14 This is a partial structural schematic diagram of the spreading device according to Embodiment 4 of this disclosure;

[0051] Figure 15 This is a schematic diagram of the dispersing device according to other embodiments of this disclosure;

[0052] Figure 16 This is a force analysis diagram showing the mutual cancellation of forces between the two elastic elements of the dispersing device in Embodiment 4 of this disclosure;

[0053] Figure 17 This is a schematic diagram of the connector structure of Embodiment 4 of this disclosure;

[0054] Figure 18 This is a schematic diagram of the structure of the first swing arm in Embodiment 4 of this disclosure;

[0055] Figure 19 This is a schematic diagram of the spreading device according to Embodiment 4 of this disclosure.

[0056] Icons: 100-Load support; 110-Spreading system; 111-Bag; 112-Feeding device; 113-Material cover; 114-Material inlet; 020-Spreading device; 200-Motor; 300-Slinging disc; 310-Disc body; 320-Pulley; 400-Support component; 410-Receiving groove; 411-Mounting wall; 420-Connecting seat; 421-Insertion hole; 422-Third shaft hole; 423-Second rotating shaft; 430-Shielding cover; 500-Elastic mechanism; 51 0-Elastic element; 511-First elastic element; 512-Second elastic element; 520-Connector; 521-First shaft hole; 522-Helical groove; 523-Side flange; 602-Second swing arm; 610-First swing arm; 611-Clamping arm; 612-Second shaft hole; 613-First rotating shaft; 700-Linear motion assembly; 711-First slide rail; 712-Second slide rail; 713-Slider; 731-Sliding element; 732-Third slide rail; 733-Swing rod; a-Set axis. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0058] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0059] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0060] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0061] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0062] Please refer to Figure 1 This disclosure 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.

[0063] Please refer to Figure 1 and Figure 2 The unmanned equipment includes an unmanned equipment body and a spreading system 110 installed on the unmanned equipment body. Specifically, the unmanned equipment body includes a load support 100, and the spreading system 110 is mounted on the load support 100. The spreading system 110 includes a material bin 111, a feeding device 112, and a spreading device 020. The material bin 111 is mounted on the load support 100 and connected to the spreading device 020 via the feeding device 112. The material bin 111 is used to store seeds and other materials. The feeding device 112 receives the materials output from the material bin 111 and transports the received materials to the spreading device 020, which then spreads the materials. The unmanned equipment body can refer to the unmanned aerial vehicle (UAV) itself.

[0064] It should be understood that the feeding device 112 is not a necessary structure. In other embodiments, the material bin 111 may not be connected to the spreading device 020 through the feeding device 112. That is, the material output from the material bin 111 does not need to be conveyed by the feeding device 112, but falls directly to the spreading device 020 for spreading.

[0065] Please refer to Figure 2 and Figure 3 The spreading device 020 disclosed herein includes a material cover 113, a motor 200, a support member 400, and a slinging disc 300. The material cover 113 is provided with a material inlet 114 and is connected between the feeding device 112 and the support member 400. The slinging disc 300 is located between the material cover 113 and the support member 400. The motor 200 is mounted on the support member 400, and the output shaft of the motor 200 is connected to the slinging disc 300 for driving the slinging disc 300 to swing back and forth around its own swing center on both sides of a set axis a. The swinging slinging disc 300 can spread the material that falls from the material inlet 114 between the material cover 113 and the support member 400.

[0066] Furthermore, the support member 400 has a first side and a second side distributed opposite to each other. The first side is distributed opposite to the material cover 113. The slinger 300 is disposed on the first side, and the motor 200 is mounted on the second side. The output shaft of the motor 200 passes through the support member 400 and is connected to the slinger 300. This arrangement improves the integration of the spreading device 020.

[0067] The slinging 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 inlet 114 and swings with the disc body 310 to scatter the material.

[0068] Alternatively, in some embodiments, the motor 200 can be connected to the slewing disc 300 via a gearbox, which is not specifically limited here.

[0069] In related technologies, the output shaft of motor 200 is used to drive the swivel disc 300 to swing back and forth in both forward and reverse directions. This requires motor 200 to stop and accelerate in reverse frequently, resulting in extremely high power consumption and severe heat generation of motor 200. This not only affects the battery life that provides power to motor 200, but also easily burns out motor 200.

[0070] To address the aforementioned issues, the spreading device 020 provided in this disclosure further includes an elastic mechanism 500. The elastic mechanism 500 absorbs the kinetic energy of the swivel disc 300 and undergoes elastic deformation during its oscillation, and drives the swivel disc 300 to oscillate in the opposite direction when releasing its elastic potential energy. In this way, by utilizing the elastic deformation of the elastic mechanism 500 to absorb and store energy, the elastic mechanism 500 is adapted to the oscillation frequency of the swivel disc 300, assisting in the deceleration and reverse acceleration of the swivel disc 300. This reduces energy consumption during sudden stops and reverse acceleration of the motor 200, improves the problem of severe overheating of the motor 200, and consequently helps extend the battery life that supplies power to the motor 200, effectively mitigating the problem of motor 200 burnout.

[0071] The flexible mechanism 500 has multiple implementations, and the following will describe each implementation by way of example.

[0072] Please refer to Figures 4-11 The elastic mechanism 500 includes a straight elastic element (hereinafter referred to as elastic element 510). When the swing disc 300 swings, the swing motion of the swing disc 300 is converted into the axial deformation of the elastic element 510. With this configuration, more of the kinetic energy of the swing disc 300 can be absorbed by the elastic element 510, and more of the elastic potential energy released by the elastic element 510 can be converted into the power to drive the swing disc 300 to rotate in the opposite direction, reducing energy loss and improving the connection stability between the elastic element 510 and the swing disc 300, reducing wear, and thus improving the reliability of using the elastic element 510 to assist the swing disc 300 in swinging in the opposite direction.

[0073] It should be noted that a straight elastic element refers to an elastic element designed to undergo axial deformation when subjected to external force, such as a spring or rubber that can be stretched or compressed in the length direction.

[0074] In this disclosure, some embodiments utilize the linear motion component 700 of the elastic mechanism 500 to convert the circular motion of the swivel disc 300 into linear motion, so that the elastic element 510 is linearly stretched or compressed. That is, the swivel disc 300 and the linear motion component 700 are in transmission cooperation, and the linear motion component 700 is used to convert the swing of the swivel disc 300 into linear motion and cause the elastic element 510 to undergo axial deformation. In other embodiments, the linear motion component 700 is not required. Several embodiments will be described exemplarily below.

[0075] Example 1

[0076] Please refer to Figure 4 and 5 The spreading device 020 also includes a second swing arm 602 that swings synchronously with the spinning disc 300. Specifically, one end of the second swing arm 602 is coaxially connected to the disc body 310 of the spinning disc 300. The linear motion component 700 includes a first slide rail 711 and a second slide rail 712. The other end of the second swing arm 602 is slidably engaged with the first slide rail 711. The first slide rail 711 and the second slide rail 712 are slidably engaged, and the extension directions of the first slide rail 711 and the second slide rail 712 are perpendicular. An elastic element 510 is disposed on the first slide rail 711. When the spinning disc 300 swings, the end of the second swing arm 602 slides within the first slide rail 711 and drives the first slide rail 711 to slide along the second slide rail 712, so that the elastic element 510 undergoes axial deformation. By configuring the two-dimensional slide rail assembly, the swing of the swivel disc 300 is converted into linear motion within the first slide rail 711. The second swing arm 602 is used to extend and retract the elastic element 510. When the elastic element 510 returns to its original position, the elastic potential energy released by the elastic element 510 reliably drives the second swing arm 602 and the swivel disc 300 to swing synchronously in opposite directions. This ensures the reliability of the swivel disc 300's reciprocating swing in coordination with the elastic effect of the elastic element 510, reduces the loss of elastic potential energy, and improves reliability.

[0077] Furthermore, the second slide rail 712 is connected to the first side of the support member 400, and the length extension direction of the second slide rail 712 is parallel to the set axis a; the second swing arm 602 is located on the side of the disk body 310 facing the support member 400, and the elastic mechanism 500 includes two elastic elements 510. The first slide rail 711 has a straight groove and extends horizontally. Both elastic elements 510 are disposed in the groove of the first slide rail 711, and the first ends of the two elastic elements 510 are respectively connected to the two ends of the first slide rail 711 in the length direction. The second ends of the two elastic elements 510 are slidably connected to the end of the groove of the first slide rail 711 of the second swing arm 602. The length extension direction of the two elastic elements 510 extends horizontally. When the swivel disc 300 swings, the second swing arm 602 swings synchronously. The second swing arm 602 compresses one of the elastic elements 510 and stretches the other elastic element 510. In this way, the two elastic elements 510 can be used to drive the second swing arm 602 and the swivel disc 300 to swing in opposite directions.

[0078] It should be understood that in other embodiments, the second swing arm 602 may also refer to a slider slidably disposed in the groove of the first slide rail 711 and connected to the swivel disc 300, with the two elastic elements 510 of the elastic mechanism 500 located on both sides of the slider, and one end of each elastic element 510 connected to the slider. Alternatively, in other embodiments, the end of the second swing arm 602 is rotatably connected to the slider, the slider is slidably disposed in the first slide rail 711, and the two elastic elements 510 of the elastic mechanism 500 are respectively connected to both sides of the slider; when the swivel disc 300 swings, the second swing arm 602 is driven to move the slider within the first slide rail 711, so as to use the slider to extend and retract the elastic elements 510.

[0079] The inventors discovered through research that, for example Figure 5 In the embodiment of the single elastic mechanism 500 shown, the direction of the force F1 exerted by the elastic element 510 on the swing plate 300 through the second swing arm 602 is not perpendicular to the direction from the swing center of the swing plate 300 to the point of force application. This causes the output shaft of the motor 200 that drives the swing plate 300 to swing to be subjected to a radial force F2. The radial force changes with the force provided by the elastic element 510 during the swing of the swing plate 300, which will pull on the output shaft of the motor 200 and easily lead to the problem of shaft breakage.

[0080] To improve the above issues, please refer to Figure 4In this embodiment, the spreading device 020 includes two elastic mechanisms 500 and two second swing arms 602. The two elastic mechanisms 500 are centrally symmetrically distributed with respect to the swing center of the spinning disc 300, that is, the linear motion components 700 of the two elastic mechanisms 500 are centrally symmetrically distributed with respect to the swing center of the spinning disc 300, and the elastic elements 510 of the two elastic mechanisms 500 are also centrally symmetrically distributed with respect to the swing center of the spinning disc 300. The two second swing arms 602 are slidably engaged with the first slide rails 711 of the two linear motion components 700 in a one-to-one correspondence. For example, along the length extension direction of the set axis a, the two elastic mechanisms 500 are located at the upper and lower ends of the swing center of the spinning disc 300, respectively. This arrangement allows the radial forces exerted by the two elastic mechanisms 500 on the output shaft of the motor 200 to cancel each other out. Since the radial forces exerted by the two elastic mechanisms 500 on the output shaft of the motor 200 can cancel each other out, the output shaft of the motor 200 is prevented from being subjected to radial tension, effectively improving the problem of shaft breakage of the motor 200.

[0081] Example 2

[0082] Please refer to Figure 6 and 7 The spreading device 020 also includes a second swing arm 602 that swings synchronously with the spinning disc 300. Specifically, one end of the second swing arm 602 is coaxially connected to the disc body 310 of the spinning disc 300. The linear motion component 700 includes a first slide rail 711 and a second slide rail 712. The second slide rail 712 is connected to the support member 400. The end of the second swing arm 602 is slidably engaged with the first slide rail 711. The first slide rail 711 and the second slide rail 712 are slidably engaged, and the extension directions of the first slide rail 711 and the second slide rail 712 are perpendicular. An elastic element 510 is disposed on the second slide rail 712. When the spinning disc 300 swings, the end of the second swing arm 602 slides within the first slide rail 711 and drives the first slide rail 711 to slide along the second slide rail 712, so that the elastic element 510 undergoes axial deformation. By configuring the two-dimensional slide rail assembly, the swing of the swivel disc 300 is converted into the linear motion of the first slide rail 711. The first slide rail 711 is used to extend and retract the elastic element 510. When the elastic element 510 returns to its original position, the elastic potential energy released by the elastic element 510 can reliably drive the second swing arm 602 and the swivel disc 300 to swing synchronously in opposite directions. This ensures the reliability of the swivel disc 300's reciprocating swing in coordination with the elastic effect of the elastic element 510, reduces the loss of elastic potential energy, and improves reliability.

[0083] Furthermore, the first slide rail 711 is connected to the slider 713, and the slider 713 is slidably connected to the second slide rail 712, that is, the first slide rail 711 and the second slide rail 712 are slidably engaged through the slider 713; the elastic element 510 is disposed in the second slide rail 712, and both ends of the elastic element 510 are respectively connected to the second slide rail 712 and the slider 713. When the swivel disc 300 swings, the end of the second swing arm 602 away from the swivel disc 300 slides along the first slide rail 711, and drives the first slide rail 711 to drive the slider 713 to slide in the second slide rail 712, so as to use the slider 713 to extend and retract the elastic element 510. When the elastic element 510 returns to its original position, the elastic element 510 causes the slider 713 to slide in the opposite direction, and uses the first slide rail 711 to drive the second swing arm 602 and the swivel disc 300 to swing in the opposite direction.

[0084] Furthermore, the length extension direction of the first slide rail 711 is parallel to the length extension direction of the set axis a. This configuration ensures that when the swing disc 300 drives the second swing arm 602 to swing synchronously, the second swing arm 602 sliding within the first slide rail 711 can reliably drive the first slide rail 711 to drive the slider 713 to slide within the second slide rail 712.

[0085] Optionally, the first slide rail 711 and the slider 713 are connected at an angle, roughly forming a "T" shape, and the end of the slider 713 away from the first slide rail 711 slides in cooperation with the second slide rail 712.

[0086] The included angle between the first slide rail 711 and the slider 713 is not specifically limited, but includes, but is not limited to, 90°, 85°, and 80°.

[0087] Of course, in other embodiments, the first slide rail 711 and the slider 713 are connected at an angle, and the two roughly form an "L" shape.

[0088] The inventors discovered through research that, for example Figure 7 In the embodiment of the single elastic mechanism 500 shown, the direction of the force F1 exerted by the elastic element 510 on the swing plate 300 through the second swing arm 602 is not perpendicular to the direction from the swing center of the swing plate 300 to the point of force application. This causes the output shaft of the motor 200 that drives the swing plate 300 to swing to be subjected to a radial force F2. The radial force changes with the force provided by the elastic element 510 during the swing of the swing plate 300, which will pull on the output shaft of the motor 200 and easily lead to the problem of shaft breakage.

[0089] To improve the above issues, please refer to Figure 6In this embodiment, the spreading device 020 includes two elastic mechanisms 500. This can be understood as the spreading device 020 including two elastic elements 510 and two linear motion components 700. The two elastic elements 510 and the two linear motion components 700 cooperate in a one-to-one correspondence, so that when the spinning disc 300 swings, the two sets of elastic elements 510 and linear motion components 700 can be used to make the spinning disc 300 swing in the opposite direction, ensuring the reliability of using the elastic elements 510 to make the spinning disc 300 swing in the opposite direction. The two elastic mechanisms 500 are centrally symmetrically distributed about the swing center of the spinning disc 300. The output shaft of the motor 200 is connected to the spinning disc 300 via the second swing arm 602. When the spinning disc 300 swings, the radial forces applied by the elastic elements 510 of the two elastic mechanisms 500 to the output shaft of the motor 200 can cancel each other out, and the elastic elements 510 of the two elastic mechanisms 500 extend or shorten synchronously. In this way, the radial forces exerted by the two elastic mechanisms 500 on the output shaft of the motor 200 can cancel each other out, thereby improving the problem that the output shaft of the motor 200 is easily pulled and reducing the risk of the output shaft of the motor 200 breaking.

[0090] Of course, in other embodiments, the number of elastic mechanisms 500 can be increased or decreased as needed, and no specific limitation is made here.

[0091] Furthermore, the middle part of the second swing arm 602 is coaxially connected to the swivel disc 300, and the two ends of the second swing arm 602 in the length extension direction are respectively slidably engaged with the first slide rails 711 of the two linear motion components 700; in this way, the same second swing arm 602 can be used to simultaneously cause the two elastic elements 510 to undergo elastic deformation.

[0092] The connection methods between the output shaft of the motor 200 and the second swing arm 602 include, but are not limited to, plug-in and welding.

[0093] Optionally, the elastic elements 510 of the two elastic mechanisms 500 are symmetrically distributed on both sides of the set axis a, that is, the two elastic elements 510 are symmetrically distributed on both sides of the set axis a in the horizontal direction.

[0094] Optionally, when the swivel disc 300 is in the neutral position, the length extension directions of both elastic elements 510 are both pointing towards the swing center of the swivel disc 300. The aforementioned neutral position of the swivel disc 300 can mean that the swivel disc 300 is not subject to the force of the motor 200 and the elastic elements 510 and is in a stationary position.

[0095] Example 3

[0096] Please refer to Figure 8 and 9The linear motion assembly 700 includes a slider 731, a third slide rail 732, and a rocker arm 733. The slider 731 is slidably engaged with the third slide rail 732. The two ends of the rocker arm 733 are pivotally connected to the slider 731 and the swivel disc 300, respectively. When the swivel disc 300 swings and drives the rocker arm 733 to swing, the rocker arm 733 drives the slider 731 to slide relative to the third slide rail 732, and the slider 731 can cause the elastic element 510 to undergo axial deformation. When the elastic element 510 recovers and releases its elastic potential energy, the elastic element 510 drives the slider 731 to slide in the opposite direction relative to the third slide rail 732, and uses the slider 731 to drive the rocker arm 733 to swing in the opposite direction, and uses the rocker arm 733 to drive the swivel disc 300 to swing in the opposite direction.

[0097] The inventors discovered through research that, for example Figure 9 In the embodiment of the single elastic mechanism 500 shown, the direction of the force F1 exerted by the elastic element 510 on the swing disc 300 through the second swing arm 602 is not perpendicular to the direction from the swing center of the swing disc 300 to the point of force application. This causes the output shaft of the motor 200 driving the swing disc 300 to be subjected to a radial force F2. The radial force changes with the force provided by the elastic element 510 during the swing of the swing disc 300, thus pulling on the output shaft of the motor 200 and easily leading to shaft breakage. Moreover, as Figure 10 In the embodiment where the two elastic mechanisms 500 are not centrally symmetrically distributed about the swing center of the swivel disc 300, the elastic elements 510 of both elastic mechanisms 500 will cause the output shaft of the motor 200 that drives the swivel disc 300 to be subjected to a radial force F2. Moreover, the radial force F2 provided by the elastic elements 510 of the two elastic mechanisms 500 will not cancel each other out, and will change with the force provided by the elastic elements 510 during the swing of the swivel disc 300. Therefore, it will still pull on the output shaft of the motor 200 and easily lead to the problem of shaft breakage.

[0098] To improve the above issues, please refer to Figure 8The spreading device 020 of this embodiment includes two elastic mechanisms 500, which can be understood as including two elastic elements 510 and two linear motion components 700. The two elastic elements 510 are correspondingly arranged with the third slide rails 732 of the two linear motion components 700, and the third slide rails 732 are connected to the first side of the support member 400. The elastic elements 510 are disposed in the corresponding third slide rails 732. The spreading device 020 also includes a second swing arm 60 coaxially connected to the disc body 310 of the throwing disc 300. 2. The two ends of the second swing arm 602 in the length extension direction are respectively pivotally connected to one end of the swing rod 733 of the two linear motion components 700. That is, the swing rod 733 is pivotally connected to the swivel plate 300 through the second swing arm 602. The other end of the swing rod 733 of the two linear motion components 700 slides with their respective corresponding sliding members 731. The sliding members 731 of the two linear motion components 700 slide in cooperation with their respective corresponding third slide rails 732. And the two ends of the elastic member 510 are respectively connected to the corresponding third slide rails 732 and sliding members 731. When the swivel disc 300 swings, the second swing arm 602 swings synchronously to drive the two swing rods 733 to swing. The swing rods 733 drive the corresponding sliding members 731 to slide within the third slide rail 732, so that the two elastic members 510 can be extended or shortened synchronously by using the two sliding members 731. When the two elastic members 510 recover and release their elastic potential energy, they drive their respective corresponding sliding members 731 to slide in the opposite direction, so that the sliding members 731 drive the swing rods 733 to swing in the opposite direction, and the swing rods 733 drive the swivel disc 300 to swing in the opposite direction.

[0099] The two elastic mechanisms 500 are centrally symmetrically distributed around the swing center of the swing disc 300. The output shaft of the motor 200 is connected to the swing disc 300 via a second swing arm 602. When the swing disc 300 swings, the radial forces exerted on the output shaft of the motor 200 by the elastic elements 510 of the two elastic mechanisms 500 can cancel each other out, and the elastic elements 510 of the two elastic mechanisms 500 extend or shorten synchronously. In this way, the radial forces exerted on the output shaft of the motor 200 by the two elastic mechanisms 500 can cancel each other out, thereby improving the problem of the output shaft of the motor 200 being easily stretched and reducing the risk of shaft breakage.

[0100] Of course, in other embodiments, the number of elastic mechanisms 500 can be increased or decreased as needed, and no specific limitation is made here.

[0101] The connection methods between the output shaft of the motor 200 and the second swing arm 602 include, but are not limited to, plug-in and welding.

[0102] Furthermore, the two elastic mechanisms 500 are symmetrically distributed on both sides of the set axis a, and the two elastic elements 510 are symmetrically distributed on both sides of the set axis a in the horizontal direction.

[0103] Optionally, when the swing disc 300 is in the neutral position, the length extension directions of both elastic elements 510 are both pointing towards the swing center of the swing disc 300. The swing disc 300 being in the neutral position can mean that the swing disc 300 is not subject to the force of the motor 200 and the elastic elements 510 and is in a stationary position.

[0104] In embodiments 1-3, when the elastic potential energy released by the elastic element 510 causes the swivel disc 300 to swing in the opposite direction, friction occurs between the first slide rail 711 and the second slide rail 712 due to the force exerted on the first slide rail 711 in embodiment 1 (not in the direction of the second slide rail 712's extension), the second swing arm 602 in embodiment 2 (not in the direction of the first slide rail 711's extension), and the sliding element 731 in embodiment 3 (not in the direction of the third slide rail 732's extension). This leads to a decrease in the conversion rate of elastic potential energy. Furthermore, embodiments 1-3, which convert the swivel of the swivel disc 300 into linear motion using the linear motion component 700, suffer from the problems of complex structure, large assembly space requirements, and low reliability of the linear motion component 700 itself. To address these issues, embodiment 4 is proposed.

[0105] Example 4

[0106] Please refer to Figure 11-15 The first end of the elastic element 510 is connected to a fixed position and rotatably connected to a solid at the fixed position. Specifically, the first end of the elastic element 510 is rotatably connected to the support member 400, i.e., the solid at the fixed position refers to the support member 400. The second end of the elastic element 510 is rotatably connected to the swivel disc 300 or a swinging member that swings synchronously with the swivel disc 300. When the swivel disc 300 swings, the second end of the elastic element 510 swings with the swivel disc 300, and at the same time, the second end also rotates around the position to which it is connected. The first end of the elastic element 510 does not swing with the swivel disc 300, but it also rotates around the fixed position to which it is connected. Thus, the elastic element 510 can always maintain a straight shape during the swing of its second end. The swinging motion of the swivel disc 300 can be converted into the axial deformation of the elastic element 510, and the elastic element 510 can drive the swivel disc 300 to swing in the opposite direction when it releases elastic potential energy. With this configuration, the oscillating circular motion can be converted into linear motion without the need for an additional linear motion component 700. Moreover, by utilizing the variable length of the elastic element 510, energy can be directly absorbed and released during the circular motion, avoiding unnecessary energy loss and improving the energy conversion rate. More energy can be converted into the elastic potential energy of the elastic element 510, thereby fully reducing the energy consumption of the motor 200 driving the swivel disc 300 to reciprocate.

[0107] The inventors discovered through research that, for example Figure 13In the embodiment shown where the two elastic mechanisms 500 are not centrally symmetrically distributed about the swing center of the swing disc 300, the direction of the force F1 exerted by the elastic element 510 of any one of the elastic mechanisms 500 on the swing disc 300 is not perpendicular to the direction from the swing center of the swing disc 300 to the point of force application. This results in the output shaft of the motor 200 that drives the swing disc 300 to swing being subjected to a radial force F2. The radial force F2 provided by the elastic elements 510 of the two non-centrally symmetrical elastic mechanisms 500 cannot cancel each other out, and it changes with the force provided by the elastic element 510 during the swing process. Therefore, it will pull on the output shaft of the motor 200 and easily lead to the problem of shaft breakage.

[0108] To improve the above issues, please refer to Figure 14 The spreading device 020 includes two elastic mechanisms 500, with elastic elements 510 of the two elastic mechanisms 500 being a first elastic element 511 and a second elastic element 512, respectively. Along the length extension direction of the swing axis of the spinning disc 300, a first swing arm 610 is located between the support member 400 and the spinning disc 300. The middle portion of the first swing arm 610 is connected to the output shaft of the motor 200, and the middle portion of the first swing arm 610 is also drive-connected to the spinning disc 300, so that the output shaft of the motor 200 is drive-connected to the disc body 310 of the spinning disc 300 through the first swing arm 610. The two ends of the first swing arm 610 along its length extension direction are respectively connected to the second end of the first elastic element 511 and the second end of the second elastic element 512. With this configuration, the two elastic elements 510 can reliably drive the spinning disc 300 to swing in opposite directions.

[0109] The first elastic element 511 and the second elastic element 512 are centrally symmetrically distributed about the swing center of the swing disc 300. When the swing disc 300 swings, the radial forces exerted by the first elastic element 511 and the second elastic element 512 on the output shaft of the motor 200 can cancel each other out, and the first elastic element 511 and the second elastic element 512 extend or shorten synchronously. In this way, the shaft breakage problem can be improved, that is, the radial component of the force exerted by the first elastic element 511 on the output shaft of the motor 200 and the radial component of the force exerted by the second elastic element 512 on the output shaft of the motor 200 cancel each other out, reducing the risk of shaft breakage caused by the radial force pulling on the output shaft of the motor 200.

[0110] Further, please refer to Figure 12Extending along the length of the swing axis of the swivel disc 300, the elastic element 510 is located between the support member 400 and the swivel disc 300. Specifically, the elastic element 510 is positioned on a plane parallel to the swing plane of the swivel disc 300. The elastic element 510 is located on the side of the disc body 310 of the swivel disc 300 away from the paddle 320, and the direction of the elastic force provided by the elastic element 510 is perpendicular to the output shaft axis of the motor 200. This arrangement avoids interference from the elastic element 510 in distributing materials by the swivel disc 300 and ensures that the elastic potential energy of the elastic element 510 is converted as much as possible into the power for the reverse swing of the swivel disc 300, thus improving efficiency.

[0111] Of course, in other embodiments, the elastic element 510 may also be disposed on the plane in which the swivel disc 300 swings.

[0112] Alternatively, in other embodiments, the first end of the elastic member 510 may also be rotatably connected to the load support 100, etc., without being specifically limited here.

[0113] In this embodiment, please refer to Figure 12 and Figure 14 The swinging member includes a first swing arm 610 disposed on the output shaft of the motor 200, and the second end of the elastic member 510 is rotatably connected to the end of the first swing arm 610; thus, the elastic member 510 can reliably drive the swivel disc 300 to swing in the opposite direction.

[0114] It should be understood that in other embodiments, the number of elastic mechanisms 500 can be increased or decreased as needed, for example: 4 elastic mechanisms 500 (e.g. Figure 15 (as shown), etc., are not specifically limited here.

[0115] The connection method between the output shaft of the motor 200 and the first swing arm 610, and the connection method between the first swing arm 610 and the swing plate 300, include but are not limited to plug-in, snap-in, and welding, and are not specifically limited here.

[0116] It should be understood that in other embodiments, the first swing arm 610 is connected to the output shaft of the motor 200, but not to the swivel disc 300, that is, the swivel disc 300 is not connected to the output shaft of the motor 200 via the first swing arm 610.

[0117] Please refer to Figure 14When the spinning disc 300 is in the middle position, the length extension direction of the elastic element 510 points to the swing center of the spinning disc 300. Specifically, the length extension directions of both the first elastic element 511 and the second elastic element 512 point to the swing center of the spinning disc 300, and the length extension directions of the first elastic element 511 and the second elastic element 512 coincide and are perpendicular to the set axis a. The first elastic element 511 and the second elastic element 512 are distributed horizontally on both sides of the set axis a. When the spinning disc 300 swings, the swing of the spinning disc 300 is converted into the axial deformation of the first elastic element 511 and the second elastic element 512 respectively. When the first elastic element 511 and the second elastic element 512 release elastic potential energy, they can cooperate to drive the spinning disc 300 to swing in the opposite direction. This configuration ensures that the first elastic element 511 and the second elastic element 512, when releasing elastic potential energy, are not in a state of mutual antagonism but rather cooperate with each other. This improves the problem of decreased energy conversion rate, specifically mitigating the issue where the elastic potential energy released by one of the first elastic elements 511 and the second elastic element 512 is simultaneously converted into the kinetic energy of the spinning disc 300 and the elastic potential energy of the other. Furthermore, it reduces the problem of reduced conversion of either the first elastic element 511 or the second elastic element 512 into the kinetic energy of the spinning disc 300, ensuring that the motor 200 reliably reduces power consumption. In other words, the centripetal installation of the first elastic element 511 and the second elastic element 512 ensures that regardless of the direction the spinning disc 300 swings, both the first elastic element 511 and the second elastic element 512 will extend simultaneously, and the elastic potential energy released by both can provide the torque needed to restore the spinning disc 300 to its neutral position. This ensures that the first elastic element 511 and the second elastic element 512 cooperate with each other, rather than being antagonistic. Moreover, as... Figure 16 As shown, the axes of the first elastic member 511 and the second elastic member 512 are always parallel, and the forces they provide are always opposite, which can effectively counteract the radial force acting on the output shaft of the motor 200, avoid pulling on the output shaft of the motor 200, and improve the problem of shaft breakage.

[0118] Of course, in other embodiments, please refer to Figure 15 When the swing plate 300 is in the middle position, the length extension direction of the elastic element 510 does not have to point to the swing center of the swing plate 300, and no specific limitation is made here.

[0119] The two elastic elements 510 in this embodiment (i.e., the first elastic element 511 and the second elastic element 512) are similar in their own structure and in their connection with the first swing arm 610 and the support member 400. Only one of the elastic elements 510 will be described in detail here.

[0120] In this embodiment, please refer to Figure 12 , Figure 17 and Figure 18The second end of the elastic element 510 is provided with a connector 520, which has a first shaft hole 521. The first swing arm 610 includes two spaced-apart clamping arms 611, each with a second shaft hole 612. The connector 520 is inserted between the two clamping arms 611, and the first shaft hole 521 and the second shaft hole 612 are opposite to each other and a first rotating shaft 613 is inserted through them. This arrangement ensures easy assembly and stable assembly of the elastic element 510 and the first swing arm 610, and ensures that the second end of the elastic element 510 can rotate smoothly around the first rotating shaft 613.

[0121] Furthermore, the support member 400 includes a radial mounting wall 411 disposed on the output shaft of the motor 200, with a fixed position located on the mounting wall 411, and the second end of the elastic member 510 rotatably connected to the mounting wall 411. This arrangement ensures that the elastic member 510 is reliably disposed between the slinger 300 and the support member 400, effectively preventing the elastic member 510 from interfering with the slinger 300 in spreading materials.

[0122] Furthermore, a connecting seat 420 is provided at the fixed position of the mounting wall 411, and the first end of the elastic element 510 is rotatably connected to the support member 400 through the connecting seat 420. The setting of the connecting seat 420 ensures the reliability of the rotatable connection between the first end of the elastic element 510 and the fixed position.

[0123] Optionally, the first end of the elastic element 510 is also provided with a connector 520, and the connecting seat 420 is provided with a insertion hole 421 and a third shaft hole 422 communicating with the insertion hole 421. The connector 520 at the first end of the elastic element 510 is inserted into the insertion hole 421, and the first shaft hole 521 and the third shaft hole 422 are opposite to each other and a second rotating shaft 423 is passed through it. This arrangement ensures the ease of assembly and the stability of the assembly of the elastic element 510 and the connecting seat 420, and ensures that the first end of the elastic element 510 can rotate smoothly around the second rotating shaft 423.

[0124] The connection method between any end of the elastic element 510 and the corresponding connector 520 can be selected as needed; please refer to [reference needed]. Figure 12 and Figure 17 In this embodiment, the elastic element 510 includes a spring, and both ends of the spring are provided with connectors 520. Each connector 520 is provided with a helical groove 522. When the spring's coil is screwed into the helical groove 522, the connector 520 is fixed to the spring. This design ensures the ease of connection between the spring and the connector 520, as well as the stability after connection.

[0125] Furthermore, the connector 520 is connected to a retaining flange 523, and the end of the spring can abut against the retaining flange 523. The retaining flange 523 is used to prevent the spring from displacing along its axial direction. This design not only improves the stress concentration problem of 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, thus greatly improving the life and reliability of the spring.

[0126] Of course, in other embodiments, the elastic element 510 includes a spring, and the connector 520 connected to its end is a hook formed by the spring itself; or, in other embodiments, the connector 520 is a hook, and the end of the spring is wound to form a constricted structure so that the hook is embedded in the constricted structure at the end of the spring, thereby reducing the problem of spring stress concentration.

[0127] In other embodiments, the elastic element 510 may also include elastic rubber strips, etc., which are not specifically limited here.

[0128] In this embodiment, please refer to Figure 12 The support member 400 is provided with a receiving groove 410, and the elastic member 510 is at least partially located within 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 receiving groove 410 provides a smaller space for accommodating the elastic member 510 and allows the elastic member 510 to swing within the receiving groove 410. Assembling the elastic member 510 in a relatively small space makes it easier to seal and protect it compared to assembling it in a large space. For example, the size of the cover 430 connected to the support member 400 to cover the receiving groove 410 can be made smaller.

[0129] Furthermore, the connecting seat 420 is integrally formed onto the groove wall of the receiving groove 410. Of course, in other embodiments, the connection method between the connecting seat 420 and the groove wall of the receiving groove 410 can also be bonding, fastening with bolts or other fasteners, etc., which are not specifically limited here.

[0130] Furthermore, both elastic elements 510 are embedded in the receiving groove 410, that is, both the first elastic element 511 and the second elastic element 512 are embedded in the receiving groove 410.

[0131] Furthermore, please refer to Figure 12 and Figure 19 The spreading device 020 also includes a shielding cover 430, which is connected to the support member 400 and is used to shield the opening of the receiving groove 410. This arrangement reduces the interference of material on the elastic member 510, ensuring that the elastic member 510 reliably releases its elastic potential energy to drive the swivel disc 300 to swing in the opposite direction.

[0132] The connection methods between the cover 430 and the support 400 include, but are not limited to, snap-fit ​​and connection by fasteners such as bolts.

[0133] In this embodiment, both the first elastic element 511 and the second elastic element 512 are in a stretched state when the swivel disc 300 is stationary, and are also in a stretched state when oscillating; that is, the first elastic element 511 and the second elastic element 512 are in a stretched state whether they are stationary or oscillating, which is beneficial to improving the state stability of the first elastic element 511 and the second elastic element 512, and to ensuring the consistency of the elastic force provided by the first elastic element 511 and the second elastic element 512.

[0134] Of course, in other embodiments, the first elastic element 511 and the second elastic element 512 are both in a stretched state when the spinning disc 300 swings, and in a natural state (i.e., neither stretched nor compressed) when the spinning disc 300 is stationary; this setting can extend the service life of the first elastic element 511 and the second elastic element 512.

[0135] Alternatively, in other embodiments, the first elastic element 511 and the second elastic element 512 are both in a compressed state when the swivel disc 300 is stationary, and in a stretched state when it is oscillating.

[0136] It should be understood, please refer to Figure 15 In other embodiments, the second end of the elastic element 510 may also be connected to a position of the swivel disc 300 away from its swing center, and the elastic direction provided by the elastic element 510 is not perpendicular to the axial direction of the output shaft of the motor 200; for example, the second end of the first elastic element 511 and the second end of the second elastic element 512 are both connected to a position of the swivel disc 300 away from its swing center, and the first elastic element 511 and the second elastic element 512 are respectively located on both sides of the set axis a, and are centrally symmetrically distributed with respect to the swing center of the swivel disc 300; when the swivel disc 300 swings, the first elastic element 511 and the second elastic element 512 both extend or shorten at the same time, so that the first elastic element 511 and the second elastic element 512 can also be used to drive the swivel disc 300 to swing in the opposite direction.

[0137] It should be noted that the stretching and shortening of each elastic element 510 in this disclosure refer to the change in its length, and do not represent the change in its elasticity. That is, stretching and compression do not mean that the elastic element 510 is in a state of providing tension or thrust.

[0138] The unmanned equipment disclosed herein can use the seeding system 110 to seed particulate materials such as seeds. The specific seeding process includes: the motor 200 drives the sling plate 300 to swing back and forth, and during the swinging process of the sling plate 300, the elastic mechanism 500 undergoes elastic deformation, and the elastic potential energy released when the elastic mechanism 500 recovers can be used to drive the sling plate 300 to swing in the opposite direction.

[0139] In summary, 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 overheating of the motor 200, and thus help extend the battery life that provides power to the motor 200, effectively improving the problem of motor 200 burnout; moreover, it can prevent the elastic mechanism 500 from providing radial force to the output shaft of the motor 200, avoid pulling on the output shaft of the motor 200, and thus effectively improve the problem of shaft breakage.

[0140] The above are merely preferred embodiments of the present invention and are not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A spreading device, characterized in that, include: Motor (200); The swivel disc (300) is connected to the output shaft of the motor (200). When the spreading device is working, the motor (200) drives the swivel disc (300) to swing back and forth by rotating in both directions. Two elastic mechanisms (500) are provided. When the swivel disc (300) swings, the swivel motion of the swivel disc (300) is converted into the axial deformation of each of the two elastic mechanisms (500). When the two elastic mechanisms (500) release elastic potential energy, they can drive the swivel disc (300) to swing in the opposite direction. The radial forces exerted by the two elastic mechanisms (500) on the output shaft of the motor (200) can cancel each other out.

2. The spreading device according to claim 1, characterized in that, The two elastic mechanisms (500) are centrally symmetrically distributed with respect to the swing center of the swivel disc (300).

3. The spreading device according to claim 1, characterized in that, The elastic mechanism (500) includes an elastic element (510), the first end of which is connected to a fixed position and rotatably connected to a solid at the fixed position, and the second end of which is rotatably connected to the swivel disc (300) or a swinging element that swings synchronously with the swivel disc (300).

4. The spreading device according to claim 3, characterized in that, When the swivel disc (300) is in the middle position, the length extension direction of the elastic elements (510) of the two elastic mechanisms (500) is pointing towards the swing center of the swivel disc (300); when the elastic elements (510) of the two elastic mechanisms (500) release elastic potential energy, they can cooperate to drive the swivel disc (300) to swing in the opposite direction.

5. The spreading device according to claim 3, characterized in that, The elastic elements (510) of the two elastic mechanisms (500) are centrally symmetrically distributed.

6. The spreading device according to claim 5, characterized in that, The elastic elements (510) of the two elastic mechanisms (500) are distributed horizontally at intervals on both sides of the swing center of the swivel disc (300).

7. The spreading device according to claim 3, characterized in that, The swing member includes a first swing arm (610) disposed on the output shaft of the motor (200), and the second end of the elastic member (510) is rotatably connected to the end of the first swing arm (610).

8. The spreading device according to claim 7, characterized in that, The second end of the elastic element (510) is provided with a connector (520), the connector (520) is provided with a first shaft hole (521), the first swing arm (610) includes two spaced clamping arms (611), the clamping arms (611) are provided with a second shaft hole (612), the connector (520) is provided between the two clamping arms (611), and the first shaft hole (521) and the second shaft hole (612) are opposite to each other and a first rotating shaft (613) is passed through them.

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

10. The spreading device according to claim 9, characterized in that, The spreading device also includes a support member (400), the entity at the fixed position is the support member (400), the support member (400) includes a radial mounting wall (411) disposed 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 on the mounting wall (411), and the first end of the elastic member (510) is rotatably connected to the support member (400) through the connecting seat (420).

12. The spreading device according to claim 11, characterized in that, The first end of the elastic element (510) is provided with a connector (520), the connector (520) is provided with a first shaft hole (521), the connecting seat (420) is provided with a plug hole (421) and a third shaft hole (422) communicating with the plug hole (421), the connector (520) is plugged into the plug hole (421), the first shaft hole (521) and the third shaft hole (422) are opposite to each other and a second rotating shaft (423) passes through them.

13. The spreading device according to claim 3, characterized in that, The elastic element (510) is disposed on a plane parallel to the swing plane of the swivel disc (300), and the elastic force provided by the elastic element (510) is perpendicular to the output shaft axis of the motor (200).

14. The spreading device according to claim 3, characterized in that, The elastic element (510) includes a spring, and both ends of the spring are provided with connectors (520). The connectors (520) are provided with spiral grooves (522). When the coil of the spring is screwed into the spiral groove (522), the connectors (520) are fixed to the spring.

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

16. The spreading device according to claim 1, characterized in that, The elastic mechanism (500) includes an elastic element (510) and a linear motion component (700). The linear motion components (700) of the two elastic mechanisms (500) are centrally symmetrically distributed with respect to the swing center of the swivel disc (300), and both are in transmission cooperation with the swivel disc (300). Both linear motion components (700) are used to convert the swing of the swivel disc (300) into linear motion, and respectively cause the corresponding elastic element (510) to undergo axial deformation.

17. The spreading device according to claim 16, characterized in that, The spreading device further includes a second swing arm (602) that swings synchronously with the swivel disc (300). The linear motion component (700) includes a first slide rail (711) and a second slide rail (712). The end of the second swing arm (602) is slidably engaged with the first slide rail (711). The first slide rail (711) and the second slide rail (712) are slidably engaged, and the extension directions of the first slide rail (711) and the second slide rail (712) are perpendicular. The elastic element (510) is disposed on the corresponding first slide rail (711) or second slide rail (712). When the swivel disc (300) swings, the end of the second swing arm (602) slides within the first slide rail (711) and drives the first slide rail (711) to slide along the second slide rail (712), so that the corresponding elastic element (510) undergoes axial deformation.

18. The spreading device according to claim 16, characterized in that, The linear motion assembly (700) includes a slider (731), a third slide rail (732), and a rocker arm (733). The slider (731) is slidably engaged with the third slide rail (732). The two ends of the rocker arm (733) are pivotally connected to the slider (731) and the swivel disc (300), respectively. When the swivel disc (300) swings and drives the rocker arm (733) to swing, the rocker arm (733) drives the slider (731) to slide relative to the third slide rail (732), and the slider (731) can cause the corresponding elastic element (510) to undergo axial deformation.

19. A dissemination system, characterized in that, It includes a material bin (111) and a spreading device according to any one of claims 1-18, wherein the material bin (111) is connected to the spreading device, and the material in the material bin (111) is spread out through the spreading device.

20. The dissemination system according to claim 19, characterized in that, The spreading system also includes a feeding device (112), which is used to receive the material output from the material box (111) and transport the received material to the spreading device.

21. An unmanned device, characterized in that, It includes an unmanned equipment body and a dispersing system as described in any one of claims 19-20, wherein the dispersing system is disposed on the unmanned equipment body.

Images