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 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] 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 present invention provides a novel spreading device with a swinging disc. The disc is directly driven by the output shaft of a motor, and the reciprocating swing of the disc is achieved by controlling the forward and reverse rotation of the motor output shaft. However, the inventor has discovered that using the output shaft of the motor to drive the disc back and forth requires the motor to be constantly stopped and accelerated in reverse, resulting in extremely high motor power consumption and severe heat generation. This not only affects the battery life of the battery that provides power to the motor but also easily burns out the motor. Therefore, an elastic member is provided to utilize the elastic potential energy released by the elastic member to drive the disc to swing in the reverse direction. However, the inventor has further discovered that the elastic member applies a radial force to the output shaft of the motor that drives the disc to rotate, causing the motor output shaft to be pulled and even risking breakage.

[0005] The spreading device provided by the present invention can be used in the spreading system of unmanned equipment, and the spreading device can reduce the power consumption of the motor, improve the problem of serious heating of the motor, and thus help to extend the life of the battery that provides power to the motor, and effectively improve the problem of motor burning; moreover, it can prevent the elastic mechanism from providing radial force to the output shaft of the motor, avoid pulling the output shaft of the motor, and thus effectively improve the problem of broken shaft.

[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 spinner is connected to the output shaft of the motor. When the spreading device is working, the motor drives the spinner to swing back and forth through forward and reverse rotation.

[0010] Two elastic mechanisms, when the spinning disc swings, the swinging motion of the spinning disc is converted into the axial deformation of the two elastic mechanisms respectively. When the two elastic mechanisms release the elastic potential energy, they can drive the spinning disc to swing in the opposite direction;

[0011] The radial forces exerted by the two elastic mechanisms on the output shaft of the motor can offset each other.

[0012] In an optional embodiment, the two elastic mechanisms are centrally symmetrically distributed relative to the swing center of the spinner.

[0013] In an optional embodiment, the elastic mechanism includes an elastic member, a first end of the elastic member is connected to a fixed position and is rotationally connected to the entity at the fixed position, and a second end of the elastic member is rotationally connected to the spinner or an oscillating member that swings synchronously with the spinner.

[0014] In an optional embodiment, when the spinner is in the middle position, the length extension directions of the elastic members of the two elastic mechanisms both point to the swing center of the spinner; when the elastic members of the two elastic mechanisms release elastic potential energy, they can cooperatively drive the spinner to swing in the opposite direction.

[0015] In an optional embodiment, the elastic members of the two elastic mechanisms are distributed in a centrally symmetrical manner.

[0016] In an optional embodiment, the elastic members of the two elastic mechanisms are distributed at intervals on both sides of the swing center of the spinner in the horizontal direction.

[0017] In an optional embodiment, the swing member includes a first swing arm provided on the output shaft of the motor, and the 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 member is provided with a connecting head, the connecting head is provided with a first axial hole, the first swing arm 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.

[0019] In an optional embodiment, the spinner 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 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.

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

[0022] In an optional embodiment, a connecting head is provided at the first end of the elastic member, 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.

[0023] In an optional embodiment, the elastic member is arranged on a plane parallel to the swinging plane of the spinneret, and the direction of the elastic force provided by the elastic member is perpendicular to the axial direction of the output shaft of the motor.

[0024] In an optional embodiment, the elastic member includes a spring, both ends of the spring are provided with connectors, the connectors are provided with spiral grooves, and when the coils of the spring are screwed into the spiral grooves, the connectors are fixed to the spring.

[0025] 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.

[0026] In an optional embodiment, the elastic mechanism includes an elastic member and a linear motion assembly. The linear motion assemblies of the two elastic mechanisms are centrally symmetrically distributed relative to the swing center of the spinner, and both cooperate with the spinner transmission. The two linear motion assemblies are both used to convert the swing of the spinner into linear motion, and respectively cause the corresponding elastic member to undergo axial deformation.

[0027] In an optional embodiment, the spreading device further includes a second swing arm that swings synchronously with the spinning disc, the linear motion assembly 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 direction of the first slide rail and the second slide rail are perpendicular; the elastic member is arranged on the corresponding first slide rail or the second slide rail;

[0028] When the spinning disc swings, the end of the second swing arm slides in the first slide rail, and drives the first slide rail to slide along the second slide rail, so that the corresponding elastic member undergoes axial deformation.

[0029] In an optional embodiment, the linear motion assembly includes a sliding member, a third slide rail and a rocker arm. The sliding member slides in cooperation with the third slide rail. The two ends of the rocker arm are pivotally connected to the sliding member and the spinner disc respectively. When the spinner disc swings and drives the rocker arm to swing, the rocker arm drives the sliding member to slide relative to the third slide rail, and the sliding member can cause the corresponding elastic member to undergo axial deformation.

[0030] 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.

[0031] In an optional embodiment, the spreading system further includes a feeding device, which is used to receive the material output from the material box and transport the received material to the spreading device.

[0032] 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.

[0033] The beneficial effects of the sowing device according to the embodiment of the utility model include: the sowing device provided by the embodiment of the utility model includes a motor, a spinning disc, and two elastic mechanisms. The spinning disc is connected to the output shaft of the motor. When the sowing device is in operation, the motor drives the spinning disc to swing back and forth through forward and reverse rotation. When the spinning disc swings, the swinging motion of the spinning disc is converted into axial deformation of each of the two elastic mechanisms. When the two elastic mechanisms release elastic potential energy, they can drive the spinning disc to swing in the opposite direction. The radial forces applied by the two elastic mechanisms to the output shaft of the motor can offset each other. Since the radial forces applied by the two elastic mechanisms to the output shaft of the motor can offset each other, the output shaft of the motor is protected from radial pulling, effectively improving the problem of broken output shaft of the motor.

[0034] The spreading system of the embodiment of the present invention includes all the beneficial effects of the aforementioned spreading device, for example, it prevents the output shaft of the motor from being pulled radially, and effectively improves the problem of the output shaft of the motor being broken.

[0035] The unmanned equipment of the embodiment of the present invention includes all the beneficial effects of the aforementioned spreading system, for example, preventing the output shaft of the motor from being pulled radially, and effectively improving the problem of the output shaft of the motor being broken. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] 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.

[0037] Figure 1 A schematic diagram of the partial structure of the unmanned equipment disclosed herein;

[0038] Figure 2 It is a partial structural schematic diagram of the spreading system disclosed in the present invention;

[0039] Figure 3 Schematic diagram of the structure of the spreading device disclosed in the present invention;

[0040] Figure 4 Schematic diagram of the structure of the spreading device of Example 1 of the present disclosure;

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

[0042] Figure 6 Schematic diagram of the reciprocating swing of the spinning disc of the spreading device of Example 2 of the present disclosure;

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

[0044] Figure 8 Schematic diagram of the reciprocating swing of the spinning disc of the spreading device of Example 3 of the present disclosure;

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

[0046] Figure 10 Schematic diagram of the structure of the spreading device with two non-center-symmetrical elastic mechanisms Figure 1 ;

[0047] Figure 11 Schematic diagram of the reciprocating swing of the spinning disc of the spreading device of Example 4 of the present disclosure;

[0048] Figure 12 This is a schematic diagram of the exploded structure of the spreading device according to Embodiment 4 of the present disclosure;

[0049] Figure 13 Schematic diagram of the structure of the spreading device with two non-center-symmetrical elastic mechanisms Figure 2 ;

[0050] Figure 14 This is a schematic diagram of the partial structure of the spreading device of Example 4 of the present disclosure;

[0051] Figure 15 is a structural schematic diagram of a spreading device according to another embodiment of the present disclosure;

[0052] Figure 16 This is a force analysis diagram showing the mutual offset of the forces between the two elastic members of the spreading device of Example 4 of the present disclosure;

[0053] Figure 17 This is a schematic structural diagram of a connector according to Embodiment 4 of the present disclosure;

[0054] Figure 18 This is a structural schematic diagram of the first swing arm of Example 4 of the present disclosure;

[0055] Figure 19 This is a schematic structural diagram of the spreading device of Example 4 of the present disclosure.

[0056] Icons: 100-load support; 110-spreading system; 111-material box; 112-feeding device; 113-material cover; 114-material opening; 020-spreading device; 200-motor; 300-spinning disc; 310-disc body; 320-paddle; 400-support; 410-accommodating groove; 411-mounting wall; 420-connecting seat; 421-plug hole; 422-third axis hole; 423-second rotating shaft; 430-shielding cover; 500-elastic mechanism; 51 0-elastic part; 511-first elastic part; 512-second elastic part; 520-connecting head; 521-first axial hole; 522-spiral groove; 523-rib; 602-second swing arm; 610-first swing arm; 611-clamping arm; 612-second axial hole; 613-first rotating shaft; 700-linear motion component; 711-first slide rail; 712-second slide rail; 713-slider; 731-sliding part; 732-third slide rail; 733-rocker; a-set axis. DETAILED DESCRIPTION

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] Please refer to Figure 1 The present 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 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.

[0064] 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.

[0065] Please refer to Figure 2 and Figure 3The spreading device 020 disclosed in the present invention includes a material cover 113, a motor 200, a support 400 and a spinner 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 spinner 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 spinner 300, for driving the spinner 300 to swing back and forth around its own swing center on both sides of the set axis a. The swinging spinner 300 can spread the material that falls from the material port 114 between the material cover 113 and the support 400.

[0066] 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.

[0067] 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.

[0068] Optionally, in some embodiments, the motor 200 may be connected to the spinner 300 via a reduction gearbox, which is not specifically limited herein.

[0069] 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.

[0070] To address the aforementioned issues, the spreading device 020 provided herein further includes an elastic mechanism 500. The elastic mechanism 500 is configured to absorb the kinetic energy of the spinner 300 and undergo elastic deformation as the spinner 300 swings, and to drive the spinner 300 to swing in the opposite direction when the elastic potential energy is released. In this manner, the elastic deformation of the elastic mechanism 500 is utilized to absorb stored energy, allowing the elastic mechanism 500 to adapt to the swing frequency of the spinner 300, thereby assisting in deceleration and reverse acceleration of the spinner 300. This reduces energy consumption during sudden stops and reverse acceleration of the motor 200, alleviates the problem of severe heating of the motor 200, and thereby helps extend the battery life of the battery that supplies power to the motor 200, effectively alleviating the problem of motor 200 burning out.

[0071] The elastic mechanism 500 has various implementations, and each implementation will be described exemplarily below.

[0072] Please refer to Figure 4-11 The elastic mechanism 500 includes a straight elastic member (hereinafter referred to as the elastic member 510). When the spinning tray 300 swings, the swinging motion of the spinning tray 300 is converted into axial deformation of the elastic member 510. This arrangement allows more of the kinetic energy of the spinning tray 300 to be absorbed by the elastic member 510, and more of the elastic potential energy released by the elastic member 510 can be converted into power to drive the spinning tray 300 in the reverse direction, thereby reducing energy loss, improving the connection stability between the elastic member 510 and the spinning tray 300, reducing wear, and further enhancing the reliability of the elastic member 510 in assisting the spinning tray 300 in the reverse direction.

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

[0074] In the present disclosure, some embodiments utilize the linear motion assembly 700 of the elastic mechanism 500 to convert the circular motion of the spinner 300 into linear motion, so that the elastic member 510 is linearly stretched or compressed. That is, the spinner 300 and the linear motion assembly 700 are in transmission cooperation, and the linear motion assembly 700 is used to convert the swinging of the spinner 300 into linear motion and cause the elastic member 510 to undergo axial deformation. In other embodiments, the linear motion assembly 700 is not required. The following will provide an exemplary description of multiple embodiments.

[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 assembly 700 includes a first slide rail 711 and a second slide rail 712. The other end of the second swing arm 602 slides with the first slide rail 711; the first slide rail 711 slides with the second slide rail 712, and the extension direction of the first slide rail 711 is perpendicular to the second slide rail 712; the elastic member 510 is arranged on the first slide rail 711; when the spinning disc 300 swings, the end of the second swing arm 602 slides in the first slide rail 711, and drives the first slide rail 711 to slide along the second slide rail 712, so that the elastic member 510 undergoes axial deformation. By configuring the two-dimensional slide rail assembly, the swinging motion of the spinner 300 is converted into linear motion within the first slide rail 711, and the second swing arm 602 is used to extend and retract the elastic member 510. When the elastic member 510 recovers, the elastic potential energy released by the elastic member 510 can be used to reliably drive the second swing arm 602 and the spinner 300 to swing in the opposite direction synchronously, thereby ensuring the reliability of the spinner 300 utilizing the elastic action of the elastic member 510 to coordinate its reciprocating swing, reducing the loss of elastic potential energy, and improving 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 members 510, the first slide rail 711 has a linear slide groove, the first slide rail 711 extends in the horizontal direction, the two elastic members 510 are both arranged in the slide groove of the first slide rail 711, and the first ends of the two elastic members 510 are respectively connected to the two ends of the length direction of the first slide rail 711, and the second ends of the two elastic members 510 are both connected to the end of the slide groove of the first slide rail 711 that is slidably arranged with the second swing arm 602, and the length extension direction of the two elastic members 510 extends in the horizontal direction. When the spinning tray 300 swings, the second swing arm 602 swings synchronously, compressing one elastic member 510 and stretching the other elastic member 510 . In this way, the two elastic members 510 can be used to drive the second swing arm 602 and the spinning tray 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 a slot of the first slide rail 711 and connected to the spinner 300, with the two elastic members 510 of the elastic mechanism 500 respectively located on either side of the slider, and one end of each elastic member 510 being connected to the slider. Alternatively, in other embodiments, the end of the second swing arm 602 is rotatably connected to a slider, which is slidably disposed on the first slide rail 711, and the two elastic members 510 of the elastic mechanism 500 are respectively connected to either side of the slider; when the spinner 300 swings, the second swing arm 602 is driven to drive the slider to slide within the first slide rail 711, thereby utilizing the slider to cause the elastic member 510 to expand and contract.

[0079] The inventors have found that Figure 5 In the embodiment of the single elastic mechanism 500 shown, the direction of the force F1 applied by the elastic member 510 to the spinner tray 300 via the second swing arm 602 is not perpendicular to the direction from the swing center of the spinner tray 300 to the point of force application. This causes the output shaft of the motor 200 that drives the spinner tray 300 to swing to be subjected to a radial force F2. The radial force changes as the force provided by the elastic member 510 changes during the swinging process of the spinner tray 300, thereby pulling on the output shaft of the motor 200 and easily causing the shaft to break.

[0080] To improve the above problems, 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 arranged relative to the swing center of the spinning disc 300. Specifically, the linear motion assemblies 700 of the two elastic mechanisms 500 are centrally symmetrically arranged relative to the swing center of the spinning disc 300, and the elastic members 510 of the two elastic mechanisms 500 are also centrally symmetrically arranged relative to the swing center of the spinning disc 300. The two second swing arms 602 slideably engage with the first slide rails 711 of the two linear motion assemblies 700 in a one-to-one correspondence. For example, along the longitudinal direction of the predetermined 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 offset each other. Since the radial forces exerted by the two elastic mechanisms 500 on the output shaft of the motor 200 can be offset, the output shaft of the motor 200 is prevented from being subjected to radial tension, effectively alleviating the problem of output shaft breakage.

[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 assembly 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 slides with the first slide rail 711; the first slide rail 711 slides with the second slide rail 712, and the extension direction of the first slide rail 711 is perpendicular to the second slide rail 712; the elastic member 510 is arranged on the second slide rail 712; when the spinning disc 300 swings, the end of the second swing arm 602 slides in the first slide rail 711, and drives the first slide rail 711 to slide along the second slide rail 712, so that the elastic member 510 undergoes axial deformation. By configuring the two-dimensional slide rail assembly, the swinging motion of the spinner 300 is converted into the linear motion of the first slide rail 711, and the first slide rail 711 is used to extend and retract the elastic member 510. When the elastic member 510 recovers, the elastic potential energy released by the elastic member 510 can be used to reliably drive the second swing arm 602 and the spinner 300 to swing in the opposite direction synchronously, thereby ensuring the reliability of the spinner 300 utilizing the elastic action of the elastic member 510 to coordinate its reciprocating swing, reducing the loss of elastic potential energy, and improving 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 slides with the second slide rail 712 via the slider 713. The elastic member 510 is disposed within the second slide rail 712, and the ends of the elastic member 510 are respectively connected to the second slide rail 712 and the slider 713. When the spinning tray 300 swings, the end of the second swing arm 602 away from the spinning tray 300 slides along the first slide rail 711, driving the first slide rail 711 to drive the slider 713 to slide within the second slide rail 712, thereby causing the elastic member 510 to expand and contract via the slider 713. When the elastic member 510 recovers, the elastic member 510 causes the slider 713 to slide in the opposite direction, and the first slide rail 711 drives the second swing arm 602 and the spinning tray 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 arrangement ensures that when the spinner 300 drives the second swing arm 602 to swing synchronously, the second swing arm 602 sliding in the first slide rail 711 can reliably drive the first slide rail 711 to drive the slider 713 to slide in the second slide rail 712.

[0085] Optionally, the first slide rail 711 and the slider 713 are connected at an angle, and the two roughly form a "T" shape, and the end of the slider 713 away from the first slide rail 711 is slidably engaged with the second slide rail 712.

[0086] The included angle between the first slide rail 711 and the slider 713 is not specifically limited, and 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 have found that Figure 7 In the embodiment of the single elastic mechanism 500 shown, the direction of the force F1 applied by the elastic member 510 to the spinner tray 300 via the second swing arm 602 is not perpendicular to the direction from the swing center of the spinner tray 300 to the point of force application. This causes the output shaft of the motor 200 that drives the spinner tray 300 to swing to be subjected to a radial force F2. The radial force changes as the force provided by the elastic member 510 changes during the swinging process of the spinner tray 300, thereby pulling on the output shaft of the motor 200 and easily causing the shaft to break.

[0089] To improve the above problems, please refer to Figure 6In this embodiment, the spreading device 020 includes two elastic mechanisms 500, which can be understood as comprising two elastic members 510 and two linear motion assemblies 700. The two elastic members 510 and the two linear motion assemblies 700 are arranged in a one-to-one correspondence. This allows the two sets of elastic members 510 and linear motion assemblies 700 to cause the spinning disc 300 to swing in the opposite direction when the spinning disc 300 swings, ensuring the reliability of the elastic members 510 in causing the spinning disc 300 to swing in the opposite direction. The two elastic mechanisms 500 are centrally symmetrically arranged about the swing center of the spinning disc 300. The output shaft of the motor 200 is transmission-connected to the spinning disc 300 via a second swing arm 602. When the spinning disc 300 swings, the radial forces exerted on the output shaft of the motor 200 by the elastic members 510 of the two elastic mechanisms 500 offset each other, and the elastic members 510 of the two elastic mechanisms 500 extend or contract synchronously. In this way, the radial forces exerted by the two elastic mechanisms 500 on the output shaft of the motor 200 can offset each other, thereby improving the problem that the output shaft of the motor 200 is easily pulled and 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 is not specifically limited here.

[0091] Furthermore, the middle portion of the second swing arm 602 is coaxially connected to the spinner 300, and both 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 assemblies 700; in this way, the same second swing arm 602 can be used to simultaneously cause the two elastic members 510 to undergo elastic deformation.

[0092] The connection method between the output shaft of the motor 200 and the second swing arm 602 includes but is not limited to plugging and welding.

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

[0094] Optionally, when the spinning tray 300 is in the middle position, the length extension directions of the two elastic members 510 are both directed towards the swing center of the spinning tray 300. The spinning tray 300 being in the middle position may mean that the spinning tray 300 is not affected by the motor 200 and the elastic members 510 and is in a stationary position.

[0095] Example 3

[0096] Please refer to Figure 8 and 9The linear motion assembly 700 includes a sliding member 731, a third slide rail 732, and a rocker arm 733. The sliding member 731 slidably engages the third slide rail 732. The rocker arm 733 is pivotally connected to the sliding member 731 and the spinner 300 at both ends. When the spinner 300 swings and drives the rocker arm 733 to swing, the rocker arm 733 drives the sliding member 731 to slide relative to the third slide rail 732, and the sliding member 731 causes the elastic member 510 to axially deform. When the elastic member 510 recovers and releases its elastic potential energy, the elastic member 510 drives the sliding member 731 to slide in the opposite direction relative to the third slide rail 732. The sliding member 731 drives the rocker arm 733 to swing in the opposite direction, and the rocker arm 733 drives the spinner 300 to swing in the opposite direction.

[0097] The inventors have found that Figure 9 In the embodiment of the single elastic mechanism 500 shown, the direction of the force F1 exerted by the elastic member 510 on the spinner 300 through the second swing arm 602 is not perpendicular to the direction from the swing center of the spinner 300 to the force application point. This causes the output shaft of the motor 200 that drives the spinner 300 to swing to be subjected to a radial force F2. The radial force changes with the change of the force provided by the elastic member 510 during the swinging process of the spinner 300, thereby pulling the output shaft of the motor 200 and easily causing the problem of broken shaft. Moreover, as shown in FIG. Figure 10 In the embodiment shown in which the two elastic mechanisms 500 are not centrally symmetrically distributed about the swing center of the spinner 300, the elastic members 510 of the two elastic mechanisms 500 will cause the output shaft of the motor 200 that drives the spinner 300 to swing to be subjected to a radial force F2. The radial forces F2 provided by the elastic members 510 of the two elastic mechanisms 500 will not cancel each other out, but will vary with the force provided by the elastic members 510 during the swinging process of the spinner 300. Therefore, the output shaft of the motor 200 will still be pulled, and the problem of shaft breakage may be easily caused.

[0098] To improve the above problems, please refer to Figure 8The spreading device 020 of this embodiment includes two elastic mechanisms 500, which can be understood as the spreading device 020 including two elastic members 510 and two linear motion assemblies 700. The two elastic members 510 are arranged in a one-to-one correspondence with the third slide rails 732 of the two linear motion assemblies 700, and the third slide rails 732 are connected to the first side of the support member 400. The elastic members 510 are arranged 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 spinner 300. 2. The two ends of the second swing arm 602 in the longitudinal extension direction are respectively pivotally connected to one end of the swing rod 733 of the two linear motion assemblies 700. That is, the swing rod 733 is pivotally connected to the spinner 300 through the second swing arm 602. The other ends of the swing rod 733 of the two linear motion assemblies 700 slide with their respective corresponding sliding members 731. The sliding members 731 of the two linear motion assemblies 700 slide in cooperation with their respective corresponding third slide rails 732. The two ends of the elastic member 510 are respectively connected to the corresponding third slide rails 732 and the sliding member 731. When the spinning tray 300 swings, the second swing arm 602 swings synchronously, driving the two swing rods 733 to swing. The swing rods 733 drive the corresponding sliding members 731 to slide in the third slide rails 732, so that the two sliding members 731 can be used to synchronously extend or shorten the two elastic members 510; when the two elastic members 510 recover and release their elastic potential energy, they drive their 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 can drive the spinning tray 300 to swing in the opposite direction.

[0099] The two elastic mechanisms 500 are symmetrically arranged about the swing center of the spinning disc 300. The output shaft of the motor 200 is connected to the spinning disc 300 via a second swing arm 602. When the spinning disc 300 swings, the radial forces exerted on the output shaft of the motor 200 by the elastic members 510 of the two elastic mechanisms 500 offset each other, and the elastic members 510 of the two elastic mechanisms 500 extend or contract synchronously. This allows the radial forces exerted on the output shaft of the motor 200 by the two elastic mechanisms 500 to offset each other, thereby alleviating the problem of the output shaft of the motor 200 being easily pulled and reducing the risk of the output shaft of the motor 200 breaking.

[0100] Of course, in other embodiments, the number of elastic mechanisms 500 can be increased or decreased as needed, and is not specifically limited here.

[0101] The connection method between the output shaft of the motor 200 and the second swing arm 602 includes but is not limited to plugging and welding.

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

[0103] Optionally, when the spinner 300 is in the middle position, the length extension directions of the two elastic members 510 are both directed towards the swing center of the spinner 300. The spinner 300 being in the middle position may mean that the spinner 300 is not affected by the motor 200 and the elastic members 510 and is in a stationary position.

[0104] In the above-described embodiments 1-3, when the elastic potential energy released by the elastic member 510 is used to cause the spinning disk 300 to swing in the opposite direction, friction exists between the first and second slide rails 711, 712, and the second swing arm 602 of the second embodiment. This force is not applied in the direction of the length of the first slide rail 711, resulting in friction between the second swing arm 602 and the first slide rail 711. In addition, the sliding member 731 of the third embodiment is not applied in the direction of the length of the third slide rail 732, resulting in friction between the sliding member 731 and the third slide rail 732. This reduces the conversion rate of the elastic potential energy. Furthermore, while the embodiments 1-3 convert the swinging motion of the spinning disk 300 into linear motion through the linear motion assembly 700, the linear motion assembly 700 itself is complex in structure, requires a large assembly space, and has low reliability. To address these various issues, the fourth embodiment is provided.

[0105] Example 4

[0106] Please refer to Figure 11-15 The first end of the elastic member 510 is connected to a fixed position and is rotationally connected to an entity at the fixed position. Specifically, the first end of the elastic member 510 is rotationally connected to the support member 400, that is, the entity at the fixed position is the support member 400. The second end of the elastic member 510 is rotationally connected to the spinning tray 300 or an oscillating member that oscillates synchronously with the spinning tray 300. When the spinning tray 300 oscillates, the second end of the elastic member 510 oscillates with the spinning tray 300 and simultaneously rotates about the position to which it is connected. The first end of the elastic member 510 does not oscillate with the spinning tray 300, but it also rotates about the fixed position to which it is connected. As a result, the elastic member 510 can maintain a straight shape during the swinging of the second end of the elastic member 510. The swinging motion of the spinning tray 300 is converted into axial deformation of the elastic member 510. When the elastic member 510 releases its elastic potential energy, it can drive the spinning tray 300 to oscillate in the opposite direction. With such an arrangement, there is no need to additionally set up a linear motion component 700, and the swinging circular motion is converted into linear motion. In addition, 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 improving the energy conversion rate. More energy can be converted into the elastic potential energy of the elastic member 510, thereby utilizing the elastic potential energy of the elastic member 510 to fully reduce the energy consumption of the motor 200 driving the spinner 300 to rotate back and forth.

[0107] The inventors have found that Figure 13In the embodiment shown, in which the two elastic mechanisms 500 are not centrally symmetrically distributed about the swing center of the spinning disc 300, the direction of the force F1 exerted by the elastic member 510 of any elastic mechanism 500 on the spinning disc 300 is not perpendicular to the direction from the swing center of the spinning disc 300 to the point of force application. This causes the output shaft of the motor 200 that drives the spinning disc 300 to swing to be subjected to a radial force F2. The radial forces F2 provided by the elastic members 510 of the two non-centrally symmetrical elastic mechanisms 500 cannot offset each other and vary with the force provided by the elastic members 510 during the swinging process. Therefore, the output shaft of the motor 200 is pulled and easily breaks.

[0108] To improve the above problems, please refer to Figure 14 The spreading device 020 includes two elastic mechanisms 500, each having elastic members 510, a first elastic member 511, and a second elastic member 512. A first swing arm 610 is positioned between the support member 400 and the spinning disc 300 along the longitudinal direction of the swing axis of the spinning disc 300. The middle portion of the first swing arm 610 is connected to the output shaft of the motor 200. The middle portion of the first swing arm 610 is also in transmission connection with the spinning disc 300, such that the output shaft of the motor 200 is in transmission connection with the disc body 310 of the spinning disc 300 via the first swing arm 610. The longitudinal ends of the first swing arm 610 are connected to the second end of the first elastic member 511 and the second end of the second elastic member 512, respectively. This arrangement allows the two elastic members 510 to reliably drive the spinning disc 300 to swing in opposite directions.

[0109] The first elastic member 511 and the second elastic member 512 are centrally symmetrically distributed about the swing center of the spinning tray 300. When the spinning tray 300 swings, the radial forces exerted by the first elastic member 511 and the second elastic member 512 on the output shaft of the motor 200 cancel each other out, and the first elastic member 511 and the second elastic member 512 extend or contract synchronously. This alleviates the problem of shaft breakage. The radial force component exerted by the first elastic member 511 on the output shaft of the motor 200 and the radial force component exerted by the second elastic member 512 on the output shaft of the motor 200 cancel each other out, thereby alleviating the risk of the output shaft of the motor 200 being pulled by the radial force component and causing shaft breakage.

[0110] Further, please refer to Figure 12The 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.

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

[0112] 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.

[0113] In this embodiment, please refer to Figure 12 and Figure 14 The swing member includes a first swing arm 610 provided 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; so arranged, the elastic member 510 can reliably drive the spinner 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 (such as Figure 15 ), 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 spinner 300 include but are not limited to plugging, clamping, and welding, which 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 is not connected to the spinneret 300 , that is, the spinneret 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 tray 300 is in the middle position, the length extension direction of the elastic member 510 points to the swing center of the spinning tray 300; specifically, 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 direction of the first elastic member 511 and the length extension direction of the second elastic member 512 coincide with and are perpendicular to the set axis a, and the first elastic member 511 and the second elastic member 512 are distributed on both sides of the set axis a at intervals in the horizontal direction; when the spinning tray 300 swings, the swinging of the spinning tray 300 is converted into the axial deformation of the first elastic member 511 and the second elastic member 512 respectively, and the first elastic member 511 and the second elastic member 512 can cooperatively drive the spinning tray 300 to swing in the opposite direction when releasing elastic potential energy. This arrangement ensures that when the first elastic member 511 and the second elastic member 512 release their elastic potential energy, they are not in a state of mutual opposition, but rather cooperate with each other, thereby improving the problem of reduced energy conversion efficiency. In other words, it improves 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 the 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 either the first elastic member 511 or the second elastic member 512 is converted into a reduced kinetic energy of the spinner 300, thereby ensuring that the power consumption of the motor 200 is reliably reduced. In other words, by the concentric installation of the first elastic member 511 and the second elastic member 512, the spinner 300 will simultaneously extend in either direction, and the elastic potential energy released by the first elastic member 511 and the second elastic member 512 can provide torque to reverse the spinner 300 to its neutral position, thereby ensuring that the first elastic member 511 and the second elastic member 512 can cooperate with each other, rather than oppose each other. Moreover, as Figure 16 As shown, the axes of the first elastic member 511 and the second elastic member 512 are always kept parallel, and the forces provided by the two are always opposite, which can effectively offset the radial force acting on the output shaft of the motor 200, avoid pulling the output shaft of the motor 200, and improve the broken shaft problem.

[0118] Of course, in other embodiments, please refer to Figure 15 When the spinning tray 300 is in the middle position, the length extension direction of the elastic member 510 may not point to the swing center of the spinning tray 300, which is not specifically limited here.

[0119] 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 first swing arm 610 and the support member 400. Only one of the elastic members 510 is introduced in detail here.

[0120] In this embodiment, please refer to Figure 12 、 Figure 17 and Figure 18The second end of the elastic member 510 is provided with a connector 520, which is provided with a first axial hole 521. The first 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 first swing arm 610, and ensures that the second end of the elastic member 510 can rotate smoothly about the first rotating shaft 613.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] 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 12 and Figure 17 In 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.

[0125] 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.

[0126] Of course, in other embodiments, the elastic member 510 includes a spring, and the connecting head 520 connected to its end is a spring itself wound to form a hook; or, in other embodiments, the connecting head 520 is a hook, and the end of the spring is wound to form a necking structure, so that the hook can be embedded in the necking structure of the spring end, so that the problem of spring stress concentration can be alleviated.

[0127] In other embodiments, the elastic member 510 may further include an elastic rubber strip, etc., which is 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 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.

[0129] 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.

[0130] 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 .

[0131] Further, please refer to Figure 12 and Figure 19 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.

[0132] 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.

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

[0134] Of course, in other embodiments, the first elastic member 511 and the second elastic member 512 are both in a stretched state when the spinner 300 is swinging, and are in a natural state (i.e., neither stretched nor compressed) when the spinner 300 is stationary; such a configuration can extend the service life of the first elastic member 511 and the second elastic member 512.

[0135] Alternatively, in other embodiments, the first elastic member 511 and the second elastic member 512 are both in a compressed state when the spinner 300 is stationary, and in a stretched state when the spinner 300 is swinging.

[0136] Please understand, please refer to Figure 15 In other embodiments, the second end of the elastic member 510 can also be connected to a position of the spinner 300 away from its swing center, and the elastic direction provided by the elastic member 510 is not perpendicular to the axial direction of the output shaft of the motor 200; illustratively, the second end of the first elastic member 511 and the second end of the second elastic member 512 are both connected to a position of the spinner 300 away from its swing center, and the first elastic member 511 and the second elastic member 512 are respectively located on both sides of the set axis a and are symmetrically distributed with respect to the swing center of the spinner 300; when the spinner 300 swings, the first elastic member 511 and the second elastic member 512 both extend or shorten at the same time. In this way, the first elastic member 511 and the second elastic member 512 can also be used to jointly drive the spinner 300 to swing in the opposite direction.

[0137] It should be noted that the stretching and shortening of each elastic member 510 disclosed herein refers to a 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.

[0138] The unmanned equipment disclosed herein can utilize the spreading system 110 to spread granular materials such as seeds. The specific spreading process includes: the motor 200 drives the spinner 300 to swing back and forth, and during the swinging of the spinner 300, the elastic mechanism 500 undergoes elastic deformation, and the elastic potential energy released when the elastic mechanism 500 recovers can be utilized to drive the spinner 300 to swing in the opposite direction.

[0139] 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 serious heating of the motor 200, and thus help to extend the life of the battery that provides power to the motor 200, and effectively improve the problem of burning of the motor 200; moreover, it can prevent the elastic mechanism 500 from providing radial force to the output shaft of the motor 200, avoid pulling the output shaft of the motor 200, and thus effectively improve the problem of broken shaft.

[0140] 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 motor (200) drives the spinning disc (300) to swing back and forth through forward and reverse rotation. Two elastic mechanisms (500), when the spinning disc (300) swings, the swinging motion of the spinning disc (300) is converted into axial deformation of each of the two elastic mechanisms (500), and the two elastic mechanisms (500) can drive the spinning disc (300) to swing in opposite directions when releasing elastic potential energy; The radial forces applied by the two elastic mechanisms (500) to the output shaft of the motor (200) can offset each other.

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

3. The spreading device according to claim 1, characterized in that The elastic mechanism (500) comprises an elastic member (510), a first end of the elastic member (510) being connected to a fixed position and being rotationally connected to a physical body at the fixed position, and a second end of the elastic member (510) being rotationally connected to the spinner (300) or an oscillating member that oscillates synchronously with the spinner (300).

4. The spreading device according to claim 3, characterized in that When the spinning disk (300) is in a neutral position, the length extension directions of the elastic members (510) of the two elastic mechanisms (500) both point to the swing center of the spinning disk (300); when the elastic members (510) of the two elastic mechanisms (500) release elastic potential energy, they can cooperatively drive the spinning disk (300) to swing in the opposite direction.

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

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

7. The spreading device according to claim 3, characterized in that The swing member comprises a first swing arm (610) arranged 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 member (510) is provided with a connector (520), and the connector (520) is provided with a first axial hole (521). The first swing arm (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 arranged 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 spinner (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 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 installation wall (411), and the first end of the elastic member (510) is rotatably connected to the supporting member (400) via the connecting seat (420).

12. The spreading device according to claim 11, characterized in that The first end of the elastic member (510) is provided with a connector (520), and 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), and 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 3, characterized in that The elastic member (510) is arranged on a plane parallel to the swinging plane of the spinneret (300), 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).

14. The spreading device according to claim 3, characterized in that The elastic member (510) includes a spring, both ends of which are provided with connectors (520), and the connectors (520) are provided with spiral grooves (522). When the coil of the spring is screwed into the spiral grooves (522), the connectors (520) are 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 elastic mechanism (500) comprises an elastic member (510) and a linear motion assembly (700). The linear motion assemblies (700) of the two elastic mechanisms (500) are centrally symmetrically distributed relative to the swing center of the spinner (300) and are both in transmission cooperation with the spinner (300). The two linear motion assemblies (700) are both used to convert the swing of the spinner (300) into linear motion and respectively cause the corresponding elastic member (510) to undergo axial deformation.

17. The spreading device according to claim 16, characterized in that The spreading device further comprises a second swing arm (602) that swings synchronously with the spinning disc (300); the linear motion assembly (700) comprises a first slide rail (711) and a second slide rail (712); the end of the second swing arm (602) is in sliding engagement with the first slide rail (711); the first slide rail (711) is in sliding engagement with the second slide rail (712); the extension directions of the first slide rail (711) and the second slide rail (712) are perpendicular; the elastic member (510) is arranged on the corresponding first slide rail (711) or the second slide rail (712); When the spinning disc (300) swings, the end of the second swing arm (602) slides in 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 member (510) undergoes axial deformation.

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

19. A spreading system, characterized in that: It comprises a material box (111) and the spreading device according to any one of claims 1 to 18, 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.

20. The spreading system according to claim 19, characterized in that The spreading system further comprises a feeding device (112), wherein 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.

21. An unmanned device, characterized in that: It comprises an unmanned equipment body and the spreading system according to any one of claims 19-20, wherein the spreading system is arranged on the unmanned equipment body.

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