Spreading device for a harvesting apparatus and harvesting apparatus

Abstract

The application discloses a throwing device for a harvesting device and the harvesting device, and the throwing device comprises a support plate arranged at the bottom tail end of a frame of the harvesting device and distributed in a horizontal direction; a first connecting shaft rotatably arranged on the support plate; a first throwing disc unit sleeved on the outer peripheral side of the first connecting shaft and internally formed with a mounting space; and a first electric drive arranged in the mounting space, with a driving output end of the first electric drive connected with the first connecting shaft. The throwing device for the harvesting device has the advantages of higher control precision, faster response speed, lower maintenance cost and the like.

Description

Technical Field

[0001] This application belongs to the field of harvesting equipment technology, and specifically relates to a spreading device and harvesting equipment for harvesting equipment. Background Technology

[0002] The spreading device (such as a double-disc spreader) on harvesting equipment is a key component that achieves uniform spreading of straw back into the field through two high-speed rotating discs. Harvesting equipment is typically designed to harvest crops with significantly different material characteristics, making it difficult to control the speed and width of the crop residue discharged from the spreader. For example, lightweight crops (such as wheat) produce lower-density residue, which is much harder to spread over a greater distance compared to heavier crops (such as corn, which produces relatively dense residue). To accommodate these different material characteristics, many spreading devices include hydraulic motors or cylinders. The hydraulic motor enables variable-speed rotation of the spreader discs, while the hydraulic cylinder drives guide plates to control the spreading width of the crop residue. However, hydraulic systems that achieve hydraulic drive suffer from lag and instability due to oil temperature variations, pressure fluctuations, and leaks. They also require regular hydraulic oil changes or handling hydraulic oil leaks, leading to cumbersome operation and potential pollution. Furthermore, they suffer from drawbacks such as complex control, low control precision, and increased maintenance frequency. Summary of the Invention

[0003] The purpose of this application is to provide a spreading device and harvesting equipment for harvesting equipment, which has the advantages of higher control precision, faster response speed and lower maintenance cost.

[0004] To achieve the above objectives, the first aspect of this application provides a spreading device for a harvesting apparatus, the spreading device comprising: Support plates are installed at the bottom rear end of the frame of the harvesting equipment and distributed in a horizontal direction; The first connecting shaft is rotatably mounted on the support plate; The first spraying disc unit is sleeved on the outer periphery of the first connecting shaft and has an installation space inside it; A first electric drive unit is disposed in the installation space, and the drive output end of the first electric drive unit is connected to the first connecting shaft.

[0005] In the embodiments of this application, the first spraying disc unit and the frame together form a first material flow channel located outside the installation space, and the spraying device further includes: The first mounting bracket is connected to the bottom of the support plate; The guide plate assembly is rotatably mounted on the first mounting frame and located on the side of the first spreading disc unit away from the chopper assembly of the harvesting equipment. A first outlet of the first material flow channel is formed between the guide plate assembly and the side plate of the frame. The second electric drive unit is electrically connected to the grass guide plate assembly.

[0006] In embodiments of this application, the grass guide assembly includes: The first swing arm is rotatably mounted on the first mounting bracket and located below the first spraying disc unit; The first baffle is located at the end of the first swing arm away from the first mounting frame and extends toward the top plate of the frame; The second swing arm is rotatably mounted on the first mounting bracket and located below the first swing arm; the second electric drive unit is drivenly connected to the second swing arm. The second baffle is located at the end of the second swing arm away from the first mounting frame and extends in the direction of the first material flow channel.

[0007] In an embodiment of this application, a weight-reducing through hole is provided on the second baffle.

[0008] In embodiments of this application, the spraying device further includes an angle detection element for detecting the rotation angle of the second baffle and communicating with the second electric drive element.

[0009] In embodiments of this application, the spreading device further includes a guide frame disposed at the bottom of the frame and used to guide the first material from the shredder assembly of the harvesting equipment into the first material flow channel.

[0010] In embodiments of this application, the spraying device further includes: The second mounting bracket connects to the rack. The second spraying disc unit is rotatably mounted above the second mounting frame and is spaced apart from the first spraying disc unit along the length of the frame; The second connecting shaft is rotatably mounted on the second mounting bracket and is connected to the second spraying disc unit via a transmission. The third electric drive unit is mounted on the second mounting bracket, and the drive output end of the third electric drive unit is connected to the second connecting shaft.

[0011] In embodiments of this application, the second spraying disc unit includes a first spraying disc assembly and a second spraying disc assembly spaced apart along the width direction of the frame, and the spraying device further includes: The first driving bevel gear is mounted on the second connecting shaft and located below the first spraying disc assembly; The first driven bevel gear is disposed on the first spraying disc assembly and meshes with the first driving bevel gear; The second driving bevel gear is mounted on the second connecting shaft and located below the second spraying disc assembly; The second driven bevel gear is mounted on the second spraying disc assembly and meshes with the second driving bevel gear.

[0012] In embodiments of this application, the spraying device further includes: The first boom is located on one side of the second spraying disc unit in the width direction and is connected to the second mounting frame and the machine frame; The second boom is located on the other side of the width direction of the second spraying disc unit and connects to the second mounting frame and the frame; The hanging pipe is located between the first and second spraying disc assemblies, with its two ends connected to the second mounting bracket and the machine frame, respectively.

[0013] A second aspect of this application provides a harvesting device that includes the aforementioned spreading device for harvesting devices.

[0014] As can be seen from the above technical solution, the spreading device includes a support plate, a first connecting shaft, a first spreading disc unit, and a first electric drive component. The support plate is set at the bottom end of the frame of the harvesting equipment and is distributed in a horizontal direction. The first connecting shaft is rotatably set on the support plate. The first spreading disc unit is sleeved on the outer periphery of the first connecting shaft and forms an installation space inside. The first electric drive component is set in the installation space, and the drive output end of the first electric drive component is connected to the first connecting shaft. This spraying device has a simple structure and few parts. By setting a first connecting shaft, a first spraying disc unit, and a first electric drive component, the first spraying disc unit performs the spraying function under the drive of the first electric drive component. Compared with the existing technology that uses a hydraulic drive component to drive the spraying disc unit, the above driving method can accurately control the spraying speed of the first material sprayed from the first spraying disc unit, improve the control accuracy and response speed of the first spraying disc unit, reduce the energy consumption and maintenance cost of the spraying device, and also has the ability to seamlessly connect to intelligent systems. In addition, since the first electric drive component is set in the installation space, the internal space of the first spraying disc unit is effectively utilized, improving the compact layout of the various components of the spraying device and avoiding the overall space occupation of the spraying device.

[0015] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram of the structure of the first spraying disc unit in the embodiment of this application (view from below). Figure 2This is a schematic diagram (top view) of the structure of the second spraying disc unit in the embodiment of this application. Figure 3 This is a schematic diagram of the structure of the second spraying disc unit in the embodiment of this application (view from below). Figure 4 This is a partial structural schematic diagram of the harvesting equipment in an embodiment of this application.

[0017] Explanation of reference numerals in the attached figures 1-Support plate; 2-First spraying disc unit; 201-Cylindrical component; 202-Base plate; 203-First rotating plate; 204-Third spraying disc assembly; 205-Fourth spraying disc assembly; 3-First electric drive component; 4-First mounting frame; 401-Bracket part; 402-First connecting plate part; 5-Grass guide plate assembly; 501-First swing rod; 502-First baffle; 503-Second swing rod; 504-Second baffle; 5041-Weight reduction through hole; 6-Second electric drive component; 7-Angle detection component; 8-Guide frame; 9-Second mounting frame; 10-Second Spraying disc unit; 1001-Turntable; 1102-Housing; 1003-Second rotating plate; 1004-First spraying disc assembly; 1005-Second spraying disc assembly; 11-Second connecting shaft; 12-Third electric drive component; 13-First driving bevel gear; 14-First driven bevel gear; 15-Second driving bevel gear; 16-Second driven bevel gear; 17-First boom; 18-Second boom; 19-Hanging pipe; 20-Cleaning chamber assembly; 21-Chopper assembly; 22-Frame; 2201-Top plate; 2202-Side plate; 23-Third baffle. Detailed Implementation

[0018] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0019] Embodiments of this application provide a spreading device for harvesting equipment, such as... Figure 1 As shown, the spraying device includes: Support plate 1 is set at the bottom end of the frame 22 of the harvesting equipment and distributed in the horizontal direction; The first connecting shaft is rotatably mounted on the support plate 1; The first spraying disc unit 2 is sleeved on the outer periphery of the first connecting shaft and has an installation space inside it; The first electric drive unit 3 is disposed in the installation space, and the drive output end of the first electric drive unit 3 is connected to the first connecting shaft.

[0020] Specifically, the harvesting equipment in this embodiment can be a harvester (such as a combine harvester) and also includes a cleaning chamber assembly 20 and a shredder assembly 21 (such as a cleaning chamber assembly 20 and a shredder assembly 21).Figure 4 As shown, the spraying device includes a front spraying assembly and a rear spraying assembly. The first material inlet end of the front spraying assembly is connected to the first material outlet end of the cleaning chamber assembly 20. The front spraying assembly is used to spray the second material (such as the first crop residue with a smaller volume and lighter weight) that falls from the cleaning chamber assembly 20. The second material inlet end of the rear spraying assembly is connected to the first material outlet end of the chopper assembly 21. The rear spraying assembly is used to spray the first material (such as the second crop residue, the volume of which is greater than the volume of the first crop residue, and the mass of which is greater than the mass of the first crop residue) that has been chopped by the chopper.

[0021] The first spraying disc unit 2 includes a third spraying disc assembly 204 and a fourth spraying disc assembly 205, both disposed at the bottom end of the frame 22. Along the width of the frame 22, the third spraying disc assembly 204 and the fourth spraying disc assembly 205 are spaced apart and each includes a cylindrical component 201, a base plate 202, and multiple first rotating plates 203 (e.g., four). The base plate 202 is annular and distributed horizontally, and is connected to the axial bottom end of the cylinder. The multiple first rotating plates 203 are radially arranged along the cylindrical component 201 on the cylinder. The components 201 are distributed on the outer peripheral wall and at intervals along the circumference of the cylindrical component 201. The installation space is formed inside the cylindrical component 201. The cylindrical component 201, the bottom plate 202, the first rotating plate 203 and the frame 22 together form a first material throwing channel located on the periphery of the installation space. The material inlet end (i.e. the second material inlet end) of the first material throwing channel is connected to the second material outlet end of the chopper assembly 21. The material outlet end and the material inlet end of the first material throwing channel are distributed opposite to each other and connected to the outside.

[0022] The support plate 1 is connected to the frame 22. The setting direction of the first connecting shaft is perpendicular to the setting direction of the support plate 1. The cylindrical component 201 includes a cylindrical part and a connecting frame part located inside the cylindrical part. The connecting frame part is connected to the inner circumferential wall of the cylindrical part. The connecting frame part is sleeved on the outer circumferential side of the first connecting shaft. The first electric drive component 3 can be an electric motor. When the first electric drive component 3 rotates, it drives the first connecting shaft and the spraying disc assembly connected to the first connecting shaft to rotate (the third spraying disc assembly 204 or the fourth spraying disc assembly 205). The first material entering the first material spraying channel from the material inlet end of the first material spraying channel is sprayed out from the material outlet end of the first material spraying channel under the action of centrifugal force and / or the thrust of the first rotating plate 203.

[0023] The spraying device in this embodiment has a simple structure and few parts. By setting a first connecting shaft, a first spraying disc unit 2, and a first electric drive unit 3, the first spraying disc unit 2 performs the spraying function under the drive of the first electric drive unit 3. Compared with the prior art that uses a hydraulic drive unit to drive the spraying disc unit, the above driving method can accurately control the spraying speed of the first material sprayed from the first spraying disc unit 2, improve the control accuracy and response speed of the first spraying disc unit 2, reduce the energy consumption and maintenance cost of the spraying device, and also has the ability to seamlessly connect to intelligent systems. In addition, since the first electric drive unit 3 is set in the installation space, the internal space of the first spraying disc unit 2 is effectively utilized, improving the compact layout of the various components of the spraying device and avoiding the overall space occupied by the spraying device.

[0024] In one embodiment of this application, the first spraying disc unit 2 and the frame 22 together form a first material flow channel located outside the installation space, and the spraying device further includes: The first mounting bracket 4 is connected to the bottom of the support plate 1; The guide plate assembly 5 is rotatably mounted on the first mounting frame 4 and located on the side of the first spreading disc unit 2 away from the chopper assembly 21 of the harvesting equipment. A first outlet of the first material flow channel is formed between the guide plate assembly 5 and the side plate portion 2202 of the frame 22. The second electric drive unit 6 is electrically connected to the grass guide plate assembly 5.

[0025] Specifically, the first mounting frame 4 is located below and connected to the support plate 1. The frame 22 includes a top plate portion 2201 and a side plate portion 2202. The top plate portion 2201 is located at the top of the side plate portion 2202 and above the first sprinkling disc unit 2. The side plate portion 2202 is located on the same side as the top plate portion 2201 and the first sprinkling disc unit 2. One side of the support plate 1 is connected to the side plate portion 2202. The first outlet (located at the material outlet end of the first material sprinkling channel) is located between the side plate portion 2202 and the guide plate assembly 5. The first material entering the first material flow channel is sprinkled outward from the first outlet. Under the driving action of the second electric drive unit 6, the guide plate assembly 5 rotates, and the relative position between the guide plate assembly 5 and the side plate portion 2202 changes, thereby changing the width of the first outlet. This improves the adaptability of the first sprinkling disc unit 2 to different types of first materials and helps to expand the application range of the sprinkling device. Furthermore, the installation of the second electric drive unit 6 improves the efficiency and accuracy of the first outlet width adjustment.

[0026] In one embodiment of this application, the grass guide assembly 5 includes: The first swing arm 501 is rotatably mounted on the first mounting bracket 4 and located below the first spraying disc unit 2; The first baffle 502 is disposed at the end of the first swing arm 501 away from the first mounting bracket 4 and extends toward the top plate portion 2201 of the frame 22; The second swing arm 503 is rotatably mounted on the first mounting bracket 4 and located below the first swing arm 501. The second electric drive unit 6 is drivenly connected to the second swing arm 503. The second baffle 504 is located at the end of the second swing rod 503 away from the first mounting frame 4 and extends in the direction of the first material flow channel.

[0027] Specifically, the first mounting frame 4 includes a support portion 401, a first connecting plate portion 402, a first connecting column portion, a second connecting column portion, and a mounting column portion. The support portion 401 is L-shaped, and one end of the support portion 401 is connected to the side of the support plate 1 near the side plate portion 2202. The first connecting plate portion 402 is distributed in a horizontal direction, and the first connecting plate portion 402 is connected to the end of the support portion 401 away from the side plate portion 2202 and extends towards the center of the first spraying disc unit 2. An accommodating space is formed between the support portion 401, the first connecting plate portion 402, and the support plate 1. The top ends of the first connecting column portion, the second connecting column portion, and the mounting column portion are all connected to the support plate 1. The bottom end of the first connecting column portion is connected to the support portion 401. The bottom end of the second connecting column portion is connected to the first connecting plate portion 402 and is spaced apart from the first connecting column portion. The bottom end of the mounting column portion is connected to the first connecting plate portion 402 and is spaced apart from the second connecting column portion. The second connecting column portion is located between the first connecting column portion and the mounting column portion.

[0028] One end of the second electric drive unit 6 is rotatably connected to the first connecting column. The first swing rod 501 is distributed horizontally and includes a first swing rod portion, a first connecting portion, and a second connecting portion. One end of the first swing rod portion is rotatably sleeved on the outer periphery of the mounting column. The first connecting portion is located at the end of the first swing rod portion near the mounting column and is drivenly connected to the second electric drive unit 6 away from the first connecting column. The second electric drive unit 6 is a telescopic drive unit (such as an electric push rod). The second connecting portion is located at the end of the first swing rod portion near the mounting column and on the side of the first swing rod portion away from the first connecting portion. The two swing arms include a second swing arm portion and a third connecting portion. One end of the first swing arm portion is rotatably sleeved on the outer periphery of the mounting column portion and located below the first swing arm 501. The third connecting portion is located at one end of the second swing arm portion near the mounting column portion and on the side of the second swing arm portion near the second connecting portion. The first mounting bracket 4 also includes a second connecting plate portion rotatably connected to the second connecting column portion. The second connecting plate portion, the third connecting portion, part of the second connecting portion, and part of the first connecting plate portion 402 together form a parallelogram structure. The first baffle 502 and the second baffle 504 are both arc-shaped. The first and second swing rods can overlap on the horizontal plane. In this case, the first baffle 502 and the second baffle 504 overlap in the circumferential direction of the first spraying disc unit 2. When the second electric drive unit 6 extends or retracts, it simultaneously drives the circumferential positions of the first baffle 502 and the second baffle 504 to change, thereby altering the width of the first opening. In this situation, the first opening can have a larger width, expanding the spraying range of the first spraying disc unit 2. Alternatively, the first and second swing rods can be angled on the horizontal plane, releasing the connection between the first swing rod 501 and the second swing rod 503 and fixing them in place. When the first swing rod 501 and the second electric drive unit 6 extend or retract, only the circumferential position of the second baffle 504 changes. When the second baffle 504 and the second baffle 504 partially overlap or do not overlap in the circumferential direction of the first spraying disc unit 2, the width of the first opening becomes smaller (when the second baffle 504 and the second baffle 504 do not overlap in the circumferential direction of the first spraying disc unit 2, the width of the first opening can be minimized), thus reducing the spraying range of the first spraying disc unit 2. The above settings further improve the width adjustment range of the first opening and further improve the adaptability of the first spraying disc unit 2 to different types of first materials.

[0029] In one embodiment of this application, a weight-reducing through hole 5041 is provided on the second baffle 504. The second baffle 504 in this embodiment is made of metal. The weight-reducing through hole 5041 can reduce the weight of the second baffle 504, which is beneficial to reduce the power required by the second electric drive unit 6 when driving the second baffle 504 to move. It can also reduce the manufacturing cost of the second baffle 504 and enhance its aesthetics.

[0030] In one embodiment of this application, the spraying device further includes an angle detection element 7 for detecting the rotation angle of the second baffle 504 and communicating with the second electric drive element 6.

[0031] Specifically, in this embodiment, the angle detection element 7 is mounted on the support plate 1 and can be optionally an angle sensor. The spraying device also includes a processor, which is communicatively connected to the angle detection element 7, the second electric drive element 6, and the first electric drive element 3. When the second electric drive element 6 performs its driving function, the angle detection element 7 detects the rotation angle of the second baffle 504 and sends the detection result to the processor. The processor compares the rotation angle detected by the angle detection element 7 with a preset rotation angle (the preset rotation angle is pre-stored in the processor; or, after the operator inputs the preset rotation angle through the operating device, the operating device sends the preset rotation angle to the processor). If the rotation angle reaches the preset rotation angle, it indicates that the second baffle 504 has rotated to the correct position. The processor controls the second electric drive element 6 to stop its operation. The angle detection element 7 and the second electric drive element 6 work together to further improve the accuracy of the movement of the second baffle 504 and also enable dynamic adjustment of the first opening, which is beneficial to further improve the adaptability of the first spraying disc unit 2 to different types of first materials.

[0032] In one embodiment of this application, the spreading device further includes a guide frame 8 disposed at the bottom of the frame 22 and used to guide the first material from the shredder assembly 21 of the harvesting device into the first material flow channel.

[0033] Specifically, the guide frame 8 is located at the bottom of the top plate 2201 and between the third and fourth spreading disc assemblies 204 and 205. The spreading device also includes a third baffle 23 located on the side plate 2202 near the first material flow channel. Both the third baffle 23 and the guide frame 8 are located at the material inlet end of the first material spreading channel, forming a first inlet between the third baffle 23 and the guide frame 8. The first material from the chopper assembly 21 enters the first material spreading channel through the first inlet. The guide frame 8 has a guide groove on the side facing the first material spreading channel so that the first material can enter the first material spreading channel more smoothly and be spread out without being scattered towards other parts of the harvesting equipment.

[0034] In one embodiment of this application, such as Figures 2-3 As shown, the spraying device also includes: The second mounting bracket 9 is connected to the rack 22; The second spraying disc unit 10 is rotatably disposed above the second mounting frame 9 and is distributed at intervals with the first spraying disc unit 2 along the length of the frame 22; The second connecting shaft 11 is rotatably mounted on the second mounting bracket 9 and is connected to the second spraying disc unit 10 in a transmission manner. The third electric drive unit 12 is mounted on the second mounting bracket 9, and the drive output end of the third electric drive unit 12 is connected to the second connecting shaft 11.

[0035] Specifically, the second spraying disc unit 10 includes a first spraying disc assembly 1004 and a second spraying disc assembly 1005 spaced apart along the width direction of the frame 22. Both the first spraying disc assembly 1004 and the second spraying disc assembly 1005 include a turntable 1001, a housing 1102, a plurality of second rotating plates 1003, and a third connecting shaft. The turntable 1001, the housing 1102, and the plurality of second rotating plates 1003 together form a second material spraying channel. The turntable 1001 is distributed horizontally. Multiple second rotating plates 1003 are arranged at intervals along the circumference of the turntable 1001. The direction of the rotating plates is perpendicular to the direction of the turntable 1001. The housing 1102 is arc-shaped and located on the outer periphery of the turntable 1001. A second inlet is formed on the top of the housing 1102 (i.e., the inlet end of the second material throwing channel is located on the top of the housing 1102). A second outlet extending laterally (i.e., the outlet end of the second material throwing channel) is also formed on the housing 1102. A third connecting shaft is inserted at the center of the turntable 1001 and extends towards the direction of the second mounting base. The direction of the third connecting shaft is perpendicular to the direction of the turntable 1001. The throwing device also includes a transmission assembly. The power input end of the transmission assembly is connected to the second connecting shaft 11, and the power output end of the transmission assembly is connected to the third connecting shaft. The first electric drive unit 3 can be an electric motor. When the third electric drive unit 12 rotates, it drives the second connecting shaft 11 to rotate. The second connecting shaft 11 then transmits power to the transmission assembly and the third connecting shaft in sequence. The third connecting shaft then rotates the turntable 1001 and the multiple second rotating plates 1003 on the turntable 1001 together. The second material entering the second material throwing channel from the material inlet end of the second material throwing channel is thrown out from the material outlet end of the second material throwing channel under the action of centrifugal force and / or the thrust of the second rotating plates 1003. The above configuration further expands the types of materials that can be thrown by the throwing device, and can also accurately control the throwing speed of the second material thrown from the second throwing disc unit 10, thereby improving the control accuracy and response speed of the second throwing disc unit 10.

[0036] In one embodiment of this application, the second spraying disc unit 10 includes a first spraying disc assembly 1004 and a second spraying disc assembly 1005 spaced apart along the width direction of the frame 22, and the spraying device further includes: The first driving bevel gear 13 is disposed on the second connecting shaft 11 and located below the first spraying disc assembly 1004; The first driven bevel gear 14 is disposed on the first spraying disc assembly 1004 and meshes with the first driving bevel gear 13; The second drive bevel gear 15 is disposed on the second connecting shaft 11 and located below the second spraying disc assembly 1005; The second driven bevel gear 16 is disposed on the second spraying disc assembly 1005 and meshes with the second driving bevel gear 15.

[0037] Specifically, the first driven bevel gear 14 is mounted on the third connecting shaft of the first spraying disc assembly 1004, and the second driven bevel gear 16 is mounted on the third connecting shaft of the second spraying disc assembly 1005. When the third electric drive unit 12 rotates, the second connecting shaft 11 simultaneously drives the first driving bevel gear 13 and the second driving bevel gear 15 to rotate. The first driving bevel gear 13 and the second driving bevel gear 15 then transmit power to the first driven bevel gear 14 and the second driven bevel gear 16 respectively. The first driven bevel gear 14 and the second driven bevel gear 16 then drive the two third connecting shafts and the first spraying disc assembly 1004 and the second spraying disc assembly 1005 to rotate. The above arrangement has the advantages of simple structure, low manufacturing cost, and can further expand the spraying range of the second spraying disc unit 10.

[0038] In one embodiment of this application, the spraying device further includes a first boom 17, a second boom 18, and a lifting pipe 19. The first boom 17 is disposed on one side of the width direction of the second spraying disc unit 10 and is connected to the second mounting frame 9 and the frame 22. The second boom 18 is disposed on the other side of the width direction of the second spraying disc unit 10 and is connected to the second mounting frame 9 and the frame 22. The lifting pipe 19 is disposed between the first spraying disc assembly 1004 and the second spraying disc assembly 1005. The two ends of the lifting pipe 19 are respectively connected to the second mounting frame 9 and the frame 22. The above-mentioned arrangement has a simple structure and provides three connection points between the front spraying assembly and the frame 22, which fully ensures the structural stability of the front spraying assembly and the reliability of the connection with the frame 22.

[0039] Another embodiment of this application provides a harvesting device, which includes the spreading device for harvesting devices described in the above embodiments.

[0040] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0043] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A spreading device for harvesting equipment, characterized in that, The spraying device includes: Support plate (1) is set at the bottom end of the frame (22) of the harvesting equipment and distributed in the horizontal direction; The first connecting shaft is rotatably mounted on the support plate (1); The first spraying disc unit (2) is sleeved on the outer periphery of the first connecting shaft and has an installation space inside it; A first electric drive unit (3) is disposed in the installation space, and the drive output end of the first electric drive unit (3) is connected to the first connecting shaft.

2. The spreading device for harvesting equipment according to claim 1, characterized in that, The first spraying disc unit (2) and the frame (22) together form a first material flow channel located outside the installation space. The spraying device also includes: The first mounting bracket (4) is connected to the bottom of the support plate (1); The guide plate assembly (5) is rotatably mounted on the first mounting frame (4) and located on the side of the first spreading disc unit (2) away from the chopper assembly (21) of the harvesting equipment. A first outlet of the first material flow channel is formed between the guide plate assembly (5) and the side plate portion (2202) of the frame (22). The second electric drive unit (6) is electrically driven connected to the grass guide plate assembly (5).

3. The spreading device for harvesting equipment according to claim 2, characterized in that, The grass guide plate assembly (5) includes: The first swing arm (501) is rotatably mounted on the first mounting bracket (4) and located below the first spraying disc unit (2); The first baffle (502) is disposed at one end of the first swing rod (501) away from the first mounting bracket (4) and extends toward the top plate portion (2201) of the frame (22); The second swing arm (503) is rotatably mounted on the first mounting bracket (4) and located below the first swing arm (501), and the second electric drive unit (6) is driven to connect with the second swing arm (503); The second baffle (504) is disposed at the end of the second swing rod (503) away from the first mounting bracket (4) and extends toward the direction of the first material flow channel.

4. The spreading device for harvesting equipment according to claim 3, characterized in that, The second baffle (504) has a weight reduction through hole (5041).

5. The spreading device for harvesting equipment according to claim 3, characterized in that, The spraying device also includes an angle detection element (7) for detecting the rotation angle of the second baffle (504) and communicating with the second electric drive element (6).

6. The spreading device for harvesting equipment according to claim 2, characterized in that, The spreading device also includes a guide frame (8) disposed at the bottom of the frame (22) and used to guide the first material from the shredder assembly (21) of the harvesting equipment into the first material flow channel.

7. The spreading device for harvesting equipment according to claim 1, characterized in that, The spraying device also includes: The second mounting bracket (9) is connected to the frame (22); The second spraying disc unit (10) is rotatably disposed above the second mounting frame (9) and is spaced apart from the first spraying disc unit (2) along the length of the frame (22); The second connecting shaft (11) is rotatably mounted on the second mounting bracket (9) and is connected in transmission to the second spraying disc unit (10); The third electric drive unit (12) is disposed on the second mounting bracket (9), and the drive output end of the third electric drive unit (12) is connected to the second connecting shaft (11).

8. The spreading device for harvesting equipment according to claim 7, characterized in that, The second spraying disc unit (10) includes a first spraying disc assembly (1004) and a second spraying disc assembly (1005) spaced apart along the width direction of the frame (22), and the spraying device further includes: The first driving bevel gear (13) is disposed on the second connecting shaft (11) and located below the first spraying disc assembly (1004); The first driven bevel gear (14) is disposed on the first spraying disc assembly (1004) and meshes with the first driving bevel gear (13); The second drive bevel gear (15) is disposed on the second connecting shaft (11) and located below the second spraying disc assembly (1005); The second driven bevel gear (16) is disposed on the second spraying disc assembly (1005) and meshes with the second driving bevel gear (15).

9. The spreading device for harvesting equipment according to claim 7, characterized in that, The spraying device also includes: The first boom (17) is located on one side of the width direction of the second spraying disc unit (10) and connects the second mounting bracket (9) and the frame (22). The second boom (18) is located on the other side of the width direction of the second spraying disc unit (10) and connects the second mounting bracket (9) and the frame (22). A hanging pipe (19) is disposed between the first spraying disc assembly (1004) and the second spraying disc assembly (1005), and the two ends of the hanging pipe (19) are respectively connected to the second mounting bracket (9) and the frame (22).

10. A harvesting device, characterized in that, The harvesting equipment includes a spreading device for the harvesting equipment according to any one of claims 1-9.

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