Rapeseed harvesting device

Abstract

The invention relates to the technical field of agricultural instruments, in particular to a rapeseed harvesting device which comprises a tractor used for walking in a field, and a harvesting mechanism used for collecting rapeseed pods is arranged on the tractor; the harvesting mechanism comprises a supporting plate, the supporting plate is fixedly connected with the tractor, a plurality of processing grooves used for containing rape plants are formed in the bottom of the supporting plate, and cutting mechanisms used for cutting rape stalks are arranged in the processing grooves; a shielding plate is fixedly connected to the top of the supporting plate. A conveying pipeline is arranged on one side of the shielding plate. The two sides of the shielding plate communicate with a wind power mechanism used for blowing the rape pods to move, and a weight detection mechanism used for measuring the weight of the rape pods in the conveying pipeline is arranged in the conveying pipeline. The processor is used for judging the maturity of the rape based on the weight of the rape pods and controlling the wind power mechanism and the cutting mechanism to work based on the maturity; different picking modes are switched according to the different maturity degrees of the current rapeseeds, and it is guaranteed that the rapeseeds are harvested.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, and in particular to a rapeseed harvesting device. Background Art

[0002] As one of the important sources of edible oil and feed, oil-tea occupies an important position in agricultural production, so it is widely distributed in my country. At the same time, rapeseed also has multiple functions such as ornamental value, energy value and improving soil structure, making an important contribution to the sustainable development of agriculture.

[0003] During the rapeseed harvesting process, the rapeseed needs to be separated from the rapeseed stalks. The traditional harvesting method is usually manual harvesting. Before the rapeseed is easy to burst and fall off, the rapeseed stalks are cut down as a whole, and the water is drained by drying, and then threshing is carried out. Not only is the work efficiency slow, but when encountering windy and rainy weather during the picking process, it is easy for the rapeseed to absorb moisture and become moldy.

[0004] Therefore, in the process of large-scale picking, mechanical picking is usually adopted. However, the maturity of rapeseed determines the hardness of its pods and the fullness of the grains. As the maturity increases, the pods gradually become dry and fragile, and the grains become fuller. If the rapeseed is not yet fully mature, the stems are highly tough and have a high moisture content. At this time, the stems are easy to entangle and block the blades, and a sharp blade is required to perform high-frequency cutting on the stems; if the rapeseed is over-mature, the stems are easy to break and the grains are very easy to fall off. It is necessary to reduce the impact of the blades on the pods when they contact the rapeseed stalks to reduce the falling of the grains. Rapeseed grown in the same area may differ in maturity due to differences in microclimate, pests and diseases, or weed interference. Therefore, the present invention provides a rapeseed harvesting device that can be adjusted according to the current maturity of rapeseed. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a rapeseed harvesting device, which is used to switch different picking methods according to the current maturity of the rapeseed to ensure the progress of rapeseed harvesting.

[0006] In order to achieve the above-mentioned object, the technical scheme of the present invention is as follows: a rapeseed harvesting device, comprising a tractor for traveling in a field, wherein a harvesting mechanism for collecting rapeseed pods is provided in the forward direction of the tractor; the harvesting mechanism comprises a support plate, the support plate is fixedly connected to the tractor, a plurality of processing grooves for accommodating rapeseed plants are provided at the bottom of the support plate, and a cutting mechanism for cutting rapeseed stems is provided in the processing grooves;

[0007] A shielding plate is fixedly connected to the top of the support plate, and a conveying pipe is provided on one side of the shielding plate. The conveying pipe is located on the side of the support plate away from the processing tank;

[0008] The two sides of the shielding plate are connected to a wind mechanism for blowing the rape pods to move, and a weight detection mechanism for measuring the weight of the rape pods in the transmission pipeline is provided inside the transmission pipeline;

[0009] The device also includes a processor, which is used to judge the maturity of the rapeseed currently cut by the cutting mechanism based on the weight of the rapeseed pods, and control the wind mechanism and the cutting mechanism to work based on the maturity.

[0010] Furthermore, the height of the side of the conveying pipe close to the support plate is higher than the side of the conveying pipe far from the support plate.

[0011] Furthermore, the cutting mechanism includes a plurality of cutting blades and splitting blades, a central block is provided between adjacent processing grooves, the central block is fixedly connected to the support plate, and the cutting blades and splitting blades are symmetrically arranged with the central block as the center;

[0012] The cutting blade is located at the center of the processing groove, and a rotating shaft is coaxially fixedly connected to the center of the cutting blade, and a first motor is coaxially fixedly connected to one end of the rotating shaft; the rotating shaft is rotatably matched with the support plate, and the first motor is electrically connected to the processor;

[0013] The split pieces are located on both sides of the processing groove, and an electric push rod is fixedly connected to the support plate. The electric push rod is located on the side of the processing groove away from the center block, and the electric push rod is electrically connected to the processor.

[0014] Furthermore, a hidden groove is opened in the support plate, the hidden groove is connected to the processing groove, and the cutting blade is located in the hidden groove; a cross bar is also connected between adjacent cutting blades, the cross bar is rotationally matched with the rotating shaft, and the cross bar is slidingly matched with the support plate;

[0015] A second motor is fixedly connected at the center of the support plate, the second motor is electrically connected to the processor, the output shaft of the second motor is coaxially fixedly connected to a lead screw, the lead screw is rotatably matched with the support plate; a nut block is slidably matched on the lead screw, a slider is fixedly connected to the nut block, the slider is fixedly connected to the crossbar, and the slider and the nut block are not in the same height direction;

[0016] A plurality of driving teeth are coaxially fixedly connected to the screw rod, and the driving teeth are rotatably matched with the center block, and the upper and lower sides of the driving teeth are respectively meshed with the first rack and the second rack; the end of the first rack away from the second rack passes through the center block, the first rack and the center block are slidably matched, and the first rack is fixedly connected to the dividing piece on the side of the processing groove close to the first rack; the end of the second rack away from the first rack passes through the center block, the second rack and the center block are slidably matched, and the second rack is fixedly connected to the dividing piece on the side of the processing groove close to the second rack;

[0017] When the nut block drives the cross bar to move to the closest point to the center block, the cutting piece goes deep into the processing groove, and the first rack and the second rack drive the splitting piece to move to the side close to the center of the processing groove; when the nut block drives the cross bar to move to the farthest point from the center block, the cutting piece is hidden in the hidden groove, and the first rack and the second rack drive the splitting piece to move to the side away from the center of the processing groove.

[0018] Furthermore, the electric push rod is electrically connected to a button for controlling the electric push rod to start, a slide groove is opened in the support plate, the slide groove is connected to the hidden groove, and the cross bar is slidably matched with the slide groove, and the button is located in the slide groove;

[0019] When the nut block drives the cross bar to move to the point closest to the center block, the cross bar abuts against the button; when the nut block drives the cross bar to move to the point farthest from the center block, the cross bar separates from the button.

[0020] Furthermore, a partition is provided at the center of the transmission pipeline, and a plurality of connection holes are provided on the partition.

[0021] Furthermore, a chain is rotatably arranged in the conveying pipe, one end of the chain is fixedly connected to a driving member, and the chain is located below the partition; a plurality of meshing teeth are meshed on the chain, a plurality of grabbing teeth corresponding to the connecting holes are fixedly connected to the meshing teeth, and the diameter of the grabbing teeth is greater than the height of the connecting hole.

[0022] Furthermore, the wind mechanism includes a plurality of air supply ports located on the outer wall of the shielding plate, the air supply ports are located above the cutting blade, and the air outlet direction of the air supply ports is toward the transmission pipeline; the air supply ports are connected to an air pipe, and one end of the air pipe away from the air supply ports is connected to an air pump, and the air pump is electrically connected to the processor;

[0023] The weight detection mechanism includes a first pressure sensor and a second pressure sensor, wherein the first pressure sensor is located on the top of the partition and is fixedly connected to the partition; the second pressure sensor is located below the chain and is fixedly connected to the transmission pipeline;

[0024] The first pressure sensor is used to detect the first pressure data applied by the rape pod in real time, and send the first pressure data to the processor; the second pressure sensor is used to detect the second pressure data applied by the rape pod in real time, and send the second pressure data to the processor;

[0025] The processor is used to compare the first pressure data with the set first standard value. If the first pressure data is greater than the standard value, an extrapolation instruction is sent to the second motor, a high power instruction is sent to the first motor, and a blowing instruction is sent to the vacuum pump; if the first pressure data is less than the standard value, the second pressure data is compared with the set second standard value. If the second pressure data is greater than the second standard value, a retraction instruction is sent to the second motor, a low power instruction is sent to the first motor, and a negative pressure instruction is sent to the vacuum pump; if the second pressure data is less than the second standard value, an extrapolation instruction is sent to the second motor, a high power instruction is sent to the first motor, and a blowing instruction is sent to the vacuum pump.

[0026] Furthermore, a plurality of heating tubes are fixedly connected inside the transmission pipeline, and the heating tubes are electrically connected to the processor;

[0027] The processor is also used to send a start instruction to the heating tube when the first pressure data is greater than a standard value and the second pressure data is less than a second standard value.

[0028] Furthermore, a recovery pipe is provided on the support plate, one end of the recovery pipe is connected with the conveying pipeline, one end of the recovery pipe close to the partition is located above the chain, and the other end of the recovery pipe is connected with the outside.

[0029] The above scheme has the following beneficial effects:

[0030] 1. In this scheme, since the maturity of rapeseed in the same area is different, there will be differences in the weight of the rapeseed pods after being cut by the cutting mechanism. The weight of the rapeseed pods is measured by the weight detection mechanism to determine the current maturity of the rapeseed, which is convenient for subsequent adjustments based on the maturity and reduces damage and loss of rapeseed during the rapeseed harvesting process.

[0031] 2. In the present scheme, during the process of collecting rape pods, a shielding plate is used to shield the upper part of the contact process between the cutting mechanism and the rape stem, so as to facilitate the collection and processing of the rape seeds that may burst in the rape pods; at the same time, the wind mechanism is used to blow or suck based on the maturity. For rape pods with high maturity, it is convenient to suck the rape seeds behind the rape pods into the transmission pipeline; for rape pods with low maturity, wind force is generated to blow and assist in pushing the rape pods inside the transmission pipeline to move, thereby reducing the probability of blockage and facilitating the harvesting and processing of the rape pods.

[0032] 3. In this solution, during the blowing process of the wind mechanism, the hot air or cold air connected by the wind mechanism is controlled according to the maturity, so as to reduce the residual liquid in the transmission pipeline, ensure the dryness of the transmission pipeline, and facilitate the subsequent storage and processing of the rapeseed.

[0033] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is an axonometric diagram of an embodiment of a rapeseed harvesting device of the present invention;

[0035] Figure 2 It is a front view of an embodiment of a rapeseed harvesting device of the present invention;

[0036] Figure 3 for Figure 2 Schematic diagram of the cross section in the AA direction;

[0037] Figure 4 for Figure 2 Schematic diagram of the cross section in the BB direction;

[0038] Figure 5 for Figure 3 Schematic diagram of the connection of the middle driving gear;

[0039] Figure 6 for Figure 3 Schematic diagram of the movement of the middle crossbar.

[0040] The figure marks in the drawings of the specification include: 1. support plate; 11. mounting rod; 12. processing groove; 13. center block; 2. baffle plate; 3. transmission pipe; 31. connecting hole; 32. chain; 33. meshing tooth; 34. grabbing tooth; 4. cutting blade; 41. first motor; 42. cross bar; 43. screw rod; 431. second motor; 432. nut block; 433. slider; 434. driving tooth; 5. dividing piece; 51. electric push rod; 52. first rack; 53. second rack; 54. button; 6. air outlet; 7. first pressure sensor; 71. second pressure sensor; 8. recovery pipe. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The following is further described in detail through specific implementation methods:

[0045] Embodiment 1:

[0046] As attached Figures 1 to 6 Shown is a rapeseed harvesting device, including a tractor (not shown) for traveling in a field, a harvesting mechanism for collecting rapeseed pods being provided in the forward direction of the tractor; the harvesting mechanism comprising a support plate 1, a mounting rod 11 for support being welded between the support plate 1 and the tractor, a plurality of processing grooves 12 for accommodating rapeseed plants being provided at the bottom of the support plate 1, a cutting mechanism for cutting rapeseed stalks being provided in the processing grooves 12.

[0047] A shielding plate 2 is fixedly connected to the top of the support plate 1, and a conveying pipe 3 is provided on one side of the shielding plate 2. The height of the conveying pipe 3 close to the support plate 1 is higher than the height of the conveying pipe 3 away from the support plate 1. The conveying pipe 3 is located on the side of the support plate 1 away from the processing groove 12. The conveying pipe 3 is divided by a partition at the center, and a plurality of connection holes 31 are opened on the partition.

[0048] The cutting mechanism includes a plurality of cutting blades 4 and a plurality of splitting blades 5. A central block 13 is provided between adjacent processing grooves 12. The central block 13 is fixedly connected to the support plate 1. The cutting blade 4 and the splitting blade 5 are symmetrically arranged with the central block 13 as the center; the cutting blade 4 is located at the center of the processing groove 12, and a rotating shaft is coaxially fixedly connected to the center of the cutting blade 4. One end of the rotating shaft is coaxially fixedly connected to the first motor 41. A slider 433 is rotatably matched on the rotating shaft. The slider 433 is fixedly connected to the first motor 41. The slider 433 is slidably matched with the support plate 1, and the rotating shaft is rotatably matched with the support plate 1; the splitting blade 5 is located on both sides of the processing groove 12, and an electric push rod 51 is also fixedly connected to the support plate 1. The electric push rod 51 is located on the side of the processing groove 12 away from the central block 13.

[0049] A hidden groove is opened in the support plate 1, which is connected to the processing groove 12, and the cutting blade 4 is located in the hidden groove; a cross bar 42 is also connected between adjacent cutting blades 4, the cross bar 42 is rotatably matched with the rotating shaft, and the cross bar 42 is slidably matched with the support plate 1; a second motor 431 is fixedly connected to the center of the support plate 1, and the output shaft of the second motor 431 is coaxially fixedly connected with a screw rod 43, and the screw rod 43 is rotatably matched with the support plate 1; a nut block 432 is slidably matched on the screw rod 43, and a slider 433 is fixedly connected to the nut block 432, and the slider 433 is fixedly connected to the cross bar 42, and the slider 433 and the nut block 432 are not in the same height direction.

[0050] A plurality of driving teeth 434 are coaxially fixedly connected to the screw rod 43, and the driving teeth 434 are rotatably matched with the center block 13, and the upper and lower sides of the driving teeth 434 are respectively meshed with the first rack 52 and the second rack 53; the end of the first rack 52 away from the second rack 53 passes through the center block 13, and the first rack 52 slides with the center block 13, and the first rack 52 is fixedly connected to the dividing piece 5 on the side of the processing groove 12 close to the first rack 52; the end of the second rack 53 away from the first rack 52 passes through the center block 13, and the second rack 53 slides with the center block 13, and the second rack 53 is fixedly connected to the dividing piece 5 on the side of the processing groove 12 close to the second rack 53.

[0051] When the nut block 432 drives the cross bar 42 to move to the closest point to the center block 13, the cutting blade 4 penetrates into the processing groove 12, and the first rack 52 and the second rack 53 drive the splitting piece 5 to move to the side close to the center of the processing groove 12; when the nut block 432 drives the cross bar 42 to move to the farthest point from the center block 13, the cutting blade 4 is hidden in the hidden groove, and the first rack 52 and the second rack 53 drive the splitting piece 5 to move to the side away from the center of the processing groove 12.

[0052] The electric push rod 51 is electrically connected to a button 54 for controlling the electric push rod 51 to start. A slide groove is opened in the support plate 1, the slide groove is connected to the hidden groove, and the cross bar 42 slides in cooperation with the slide groove, and the button 54 is located in the slide groove; when the nut block 432 drives the cross bar 42 to move to the nearest point from the center block 13, the cross bar 42 and the button 54 are against each other; when the nut block 432 drives the cross bar 42 to move to the farthest point from the center block 13, the cross bar 42 and the button 54 are separated.

[0053] Both sides of the baffle plate 2 are connected with a wind mechanism for blowing the rape pods to move, and a weight detection mechanism for measuring the weight of the rape pods in the conveying pipeline 3 is provided inside the conveying pipeline 3; wherein the wind mechanism includes a plurality of air supply ports 6 located on the outer wall of the baffle plate 2, the air supply ports 6 are located above the cutting blade 4, and the air outlet direction of the air supply ports 6 is toward the conveying pipeline 3; the air supply ports 6 are connected with an air pipe, and the end of the air pipe away from the air supply ports 6 is connected with an exhaust pump, which is not shown in the figure, and the exhaust pump is a prior art, which will not be described in detail in this embodiment.

[0054] The weight detection mechanism includes a first pressure sensor 7 and a second pressure sensor 71. The first pressure sensor 7 is located on the top of the partition and is fixedly connected to the partition; the second pressure sensor 71 is located below the chain 32 and is fixedly connected to the conveying pipeline 3.

[0055] The device further comprises a processor (not shown in the figure), which is used for judging the maturity of the rapeseed currently cut by the cutting mechanism based on the weight of the rapeseed pods, and controlling the wind mechanism and the cutting mechanism to work based on the maturity.

[0056] The first pressure sensor 7 is used to detect the first pressure data applied by the rape pods in real time, and send the first pressure data to the processor; the second pressure sensor 71 is used to detect the second pressure data applied by the rape pods in real time, and send the second pressure data to the processor.

[0057] The processor is used to compare the first pressure data with the set first standard value. If the first pressure data is greater than the standard value, an extrapolation instruction is sent to the second motor 431, a high power instruction is sent to the first motor 41, and a blowing instruction is sent to the vacuum pump; if the first pressure data is less than the standard value, the second pressure data is compared with the set second standard value. If the second pressure data is greater than the second standard value, a retraction instruction is sent to the second motor 431, a low power instruction is sent to the first motor 41, and a negative pressure instruction is sent to the vacuum pump; if the second pressure data is less than the second standard value, an extrapolation instruction is sent to the second motor 431, a high power instruction is sent to the first motor 41, and a blowing instruction is sent to the vacuum pump.

[0058] For example, the first pressure data is compared to determine whether the weight of the rapeseed pods on the partition is compared with the first standard value corresponding to the maturity; the rapeseed pods have low maturity and high moisture content, so the weight of the rapeseed pods is large, and the rapeseed stalks have high moisture content and high toughness, so high-speed rotation is used for cutting; the higher the maturity of the rapeseed pods, the easier it is for the rapeseed to detach from the rapeseed pods, so the second pressure data reflects the weight of the fallen rapeseed; the second pressure data is compared to determine the weight of the currently collected rapeseed and judge the maturity of the rapeseed. For rapeseed that falls less, the maturity is in a moderate state, and high-speed cutting can quickly separate the rapeseed stalks from the rapeseed pods to ensure rapid harvesting of the rapeseed; and for rapeseed with higher maturity, by controlling the rotation speed change of the cutting blade 4 and the suction air change of the vacuum pump, the vibration and shedding of the rapeseed pods can be reduced, which is convenient for adsorbing the fallen rapeseed to move to the conveying pipeline 3, so as to facilitate the collection and processing of the rapeseed.

[0059] The specific implementation process is as follows:

[0060] First, the tractor is driven through the field to make the rape pods located between the support plate 1 and the shielding plate 2, and the rape stems located inside the processing tank 12. The cut rape pods are made to fall into the conveying pipe 3 due to the movement trend. In the process of collecting the rape pods, the height difference formed by the conveying pipe 3 is utilized so that the fallen rape pods slide to the depth of the conveying pipe 3 due to their own gravity, thereby reducing the occurrence of blockage in the conveying pipe 3 and facilitating continuous harvesting of the rape pods.

[0061] Since the maturity of tea oil in the same area is different, there will be a difference in weight of the rape pods after being cut by the cutting mechanism. The rape pods are separated and processed in different ways using the first pressure data and the pressure data, and the processor controls the first motor 41 and the electric push rod 51 based on the maturity, so that the rape pods with high humidity and high toughness are cut by the cutting blade 4, and the rape pods and the rape stalks are separated in time; the electric push rod 51 pushes the dividing blade 5 to close toward the center, so that the dividing blade 5 shears the rape stalks, reduces the shaking of the rape stalks during the cutting process of the cutting blade 4, and is convenient for shearing the rapeseed with higher maturity, so as to facilitate the collection and processing of the rape pods with higher maturity.

[0062] During the conversion process of the cutting blade 4 and the dividing blade 5, the second motor 431 is used to drive the screw rod 43 to rotate, and the screw rod 43 drives the cross bar 42 on the nut block 432 to move. The cutting blade 4 is driven to slide on the support plate 1 through the cross bar 42 to control the depth of the cutting blade 4 penetrating into the processing groove 12, so as to control the cutting blade 4 and the rape stalk inside the processing groove 12 for cutting.

[0063] At the same time, during the rotation of the screw rod 43, the screw rod 43 drives the driving teeth 434 to rotate, and the driving teeth 434 drives the first rack 52 and the second rack 53 meshing on the upper and lower sides to mesh and move, so that the first rack 52 and the second rack 53 move in opposite directions to control the segmentation piece 5 to close or move away from the center of the processing groove 12, so as to cooperate with the partition piece fixedly connected to the telescopic electric push rod 51 to shear the rapeseed stem, so as to select different cutting methods according to the maturity of the rapeseed. The first rack 52 and the second rack 53 drive the segmentation piece 5 to move in the opposite direction to the moving direction of the cutting piece 4, so as to reduce the interference generated during the working process of the cutting piece 4 and the segmentation piece 5, so as to ensure the progress of the rapeseed collection process.

[0064] The screw rod 43 drives the cross bar 42 to move through the nut block 432 to control the contact between the cross bar 42 and the button 54, so as to control the start of the electric push rod 51, so that the electric push rod 51 pushes the dividing piece 5 to the center of the processing groove 12 for closing, so as to facilitate the automatic control of the cutting and separation of the rapeseed stalks.

[0065] When the rape pods fall into the conveying pipe 3, the conveying pipe 3 is divided into an upper and lower part by a partition. The upper part of the conveying pipe 3 is used to convey the cut rape pods, and the lower part of the conveying pipe is connected by a connecting hole 31, so as to facilitate the separation of the rapeseeds that fall off during the rape pod harvesting process, and then facilitate the subsequent separate processing of the rape pods and rapeseeds, so as to switch different picking methods according to the current maturity of the rapeseeds, and ensure the rapeseed harvesting.

[0066] Embodiment 2:

[0067] The difference from the embodiment 1 is that a chain 32 is rotatably coupled in the conveying pipe 3, and one end of the chain 32 is fixedly connected to a driving member, which is not shown in the figure. The driving member is a servo motor, which is a prior art and will not be described in detail in this embodiment. The chain 32 is located below the partition; a plurality of meshing teeth 33 are meshed on the chain 32, and a plurality of grabbing teeth 34 corresponding to the connecting holes 31 are fixedly connected to the meshing teeth 33, and the diameter of the grabbing teeth 34 is greater than the height of the connecting holes 31.

[0068] The specific implementation process is as follows: during the rotation of the chain 32, the chain 32 can drive the meshing teeth 33 to rotate, and the meshing teeth 33 can drive the grabbing teeth 34 to push the rape pods inside the conveying pipe 3 to move continuously. The meshing teeth 33 can disperse the rape pods to separate part of the rape pods from the separated tea seeds, making it easier for the tea seeds to be separated from the rape pods through the connecting holes 31, so as to reduce the mixing of rape seeds and rape pods, thereby reducing the content of impurities in the rape seeds.

[0069] Embodiment 3:

[0070] The difference from Example 2 is that a number of heating tubes are fixedly connected inside the transmission pipeline 3, and the heating tubes are electrically connected to the processor; the processor is also used to send a start instruction to the heating tube when the first pressure data is greater than the standard value and the second pressure data is less than the second standard value.

[0071] A recovery pipe 8 is provided on the support plate 1 , one end of the recovery pipe 8 is connected to the conveying pipe 3 , one end of the recovery pipe 8 close to the partition is located above the chain 32 , and the other end of the recovery pipe 8 is connected to the outside.

[0072] The specific implementation process is as follows: in the process of collecting rapeseed pods, the inside of the conveying pipe 3 is heated by a heating tube to reduce the adhesion of the crushed slurry in the rapeseed stalks to the conveying pipe 3, to reduce the adhesion caused by the contact between the rapeseed and the slurry, to ensure the stable measurement of the second pressure sensor 71, and at the same time, to reduce the adhesion of the rapeseed through the slurry, to facilitate the subsequent drying of the rapeseed.

[0073] While the heating tube is heating the inside of the conveying pipe 3, the heated water vapor is collected through the recovery pipe 8, and the water vapor moistens the dust on the ground and the dust dropped after the rape stalks are cut, so as to reduce the ground dust raised by the tractor during the passage and the dust generated by the tractor during the crushing of the rape stalks, thereby improving the air quality and protecting the health of the staff.

[0074] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A rapeseed harvesting device, comprising a tractor for traveling in a field, wherein a harvesting mechanism for collecting rapeseed pods is provided in the forward direction of the tractor; characterized in that: The harvesting mechanism comprises a support plate (1), the support plate (1) is fixedly connected to the tractor, a plurality of processing grooves (12) for accommodating rapeseed plants are formed at the bottom of the support plate (1), and a cutting mechanism for cutting rapeseed stems is arranged in the processing grooves (12); A shielding plate (2) is fixedly connected to the top of the support plate (1), a conveying pipe (3) is provided on one side of the shielding plate (2), and the conveying pipe (3) is located on a side of the support plate (1) away from the processing groove (12); Both sides of the shielding plate (2) are connected to a wind mechanism for blowing the rape pods to move, and a weight detection mechanism for measuring the weight of the rape pods in the transmission pipeline (3) is provided inside the transmission pipeline (3); The device also includes a processor, which is used to judge the maturity of the rapeseed currently cut by the cutting mechanism based on the weight of the rapeseed pods, and control the wind mechanism and the cutting mechanism to work based on the maturity.

2. The rapeseed harvesting device according to claim 1, characterized in that: The height of the side of the conveying pipe (3) close to the support plate (1) is higher than the height of the side of the conveying pipe (3) far from the support plate (1).

3. The rapeseed harvesting device according to claim 2, characterized in that: The cutting mechanism comprises a plurality of cutting blades (4) and a plurality of splitting blades (5); a central block (13) is provided between adjacent processing grooves (12); the central block (13) is fixedly connected to the support plate (1); and the cutting blades (4) and the splitting blades (5) are symmetrically arranged with the central block (13) as the center. The cutting blade (4) is located at the center of the processing groove (12); a rotating shaft is coaxially fixedly connected to the center of the cutting blade (4); one end of the rotating shaft is coaxially fixedly connected to a first motor (41); the rotating shaft is rotationally matched with the support plate (1), and the first motor (41) is electrically connected to the processor; The split pieces (5) are respectively located on both sides of the processing groove (12). An electric push rod (51) is also fixedly connected to the support plate (1). The electric push rod (51) is located on a side of the processing groove (12) away from the central block (13). The electric push rod (51) is electrically connected to the processor.

4. The rapeseed harvesting device according to claim 3, characterized in that: A hidden groove is formed in the support plate (1), the hidden groove is communicated with the processing groove (12), and the cutting blade (4) is located in the hidden groove; a cross bar (42) is connected between adjacent cutting blades (4), the rotating shaft and the cross bar (42) are rotationally matched, and the cross bar (42) and the support plate (1) are slidingly matched; A second motor (431) is fixedly connected to the center of the support plate (1), the second motor (431) is electrically connected to the processor, the output shaft of the second motor (431) is coaxially fixedly connected to a screw rod (43), the screw rod (43) and the support plate (1) are rotatably matched; a nut block (432) is slidably matched on the screw rod (43), a slider (433) is fixedly connected to the nut block (432), the slider (433) is fixedly connected to the crossbar (42), and the slider (433) and the nut block (432) are not in the same height direction; The screw rod (43) is also coaxially fixedly connected with a plurality of driving teeth (434), the driving teeth (434) are rotatably matched with the center block (13), and the upper and lower sides of the driving teeth (434) are respectively meshed with a first rack (52) and a second rack (53); one end of the first rack (52) away from the second rack (53) passes through the center block (13), the first rack (52) and the center block (13) are slidably matched, and the first rack (52) is fixedly connected to a split piece (5) in the processing groove (12) close to the first rack (52); one end of the second rack (53) away from the first rack (52) passes through the center block (13), the second rack (53) and the center block (13) are slidably matched, and the second rack (53) is fixedly connected to a split piece (5) in the processing groove (12) close to the second rack (53); When the nut block (432) drives the cross bar (42) to move to the point closest to the center block (13), the cutting blade (4) penetrates into the processing groove (12), and the first rack (52) and the second rack (53) respectively drive the splitting blade (5) to move toward a side close to the center of the processing groove (12); when the nut block (432) drives the cross bar (42) to move to the point farthest from the center block (13), the cutting blade (4) is hidden in the hidden groove, and the first rack (52) and the second rack (53) respectively drive the splitting blade (5) to move toward a side far away from the center of the processing groove (12).

5. The rapeseed harvesting device according to claim 4, characterized in that: The electric push rod (51) is electrically connected to a button (54) for controlling the electric push rod (51) to start. A slide groove is provided in the support plate (1), the slide groove is connected to the hidden groove, and the cross bar (42) is slidably matched with the slide groove, and the button (54) is located in the slide groove; When the nut block (432) drives the cross bar (42) to move to the point closest to the center block (13), the cross bar (42) and the button (54) abut against each other; when the nut block (432) drives the cross bar (42) to move to the point farthest from the center block (13), the cross bar (42) and the button (54) separate.

6. The rapeseed harvesting device according to claim 5, characterized in that: The center of the transmission pipeline (3) is divided by a partition plate, and a plurality of connection holes (31) are opened on the partition plate.

7. The rapeseed harvesting device according to claim 6, characterized in that: A chain (32) is rotatably mounted in the conveying pipe (3), one end of the chain (32) is fixedly connected to a driving member, and the chain (32) is located below the partition plate; a plurality of meshing teeth (33) are meshed on the chain (32), and a plurality of grabbing teeth (34) corresponding to the connecting holes (31) are fixedly connected to the meshing teeth (33), and the diameter of the grabbing teeth (34) is greater than the height of the connecting holes (31).

8. The rapeseed harvesting device according to claim 7, characterized in that: The wind mechanism comprises a plurality of air supply ports (6) located on the outer wall of the shielding plate (2), the air supply ports (6) being located above the cutting blade (4), and the air outlet direction of the air supply ports (6) being oriented toward the transmission pipe (3); the air supply ports (6) are connected to an air pipe, and one end of the air pipe away from the air supply ports (6) is connected to an air pump, and the air pump is electrically connected to the processor; The weight detection mechanism comprises a first pressure sensor (7) and a second pressure sensor (71), wherein the first pressure sensor (7) is located on the top of the partition, and the first pressure sensor (7) is fixedly connected to the partition; the second pressure sensor (71) is located below the chain (32), and the second pressure sensor (71) is fixedly connected to the transmission pipeline (3); The first pressure sensor (7) is used to detect first pressure data applied by the rapeseed pods in real time, and send the first pressure data to the processor; the second pressure sensor (71) is used to detect second pressure data applied by the rapeseed pods in real time, and send the second pressure data to the processor; The processor is used to compare the first pressure data with a set first standard value. If the first pressure data is greater than the standard value, an extrapolation instruction is sent to the second motor (431), a high power instruction is sent to the first motor (41), and a blowing instruction is sent to the air pump; if the first pressure data is less than the standard value, the second pressure data is compared with a set second standard value. If the second pressure data is greater than the second standard value, a retraction instruction is sent to the second motor (431), a low power instruction is sent to the first motor (41), and a negative pressure instruction is sent to the air pump; if the second pressure data is less than the second standard value, an extrapolation instruction is sent to the second motor (431), a high power instruction is sent to the first motor (41), and a blowing instruction is sent to the air pump.

9. The rapeseed harvesting device according to claim 8, characterized in that: A plurality of heating tubes are also fixedly connected inside the transmission pipeline (3), and the heating tubes are electrically connected to the processor; The processor is also used to send a start instruction to the heating tube when the first pressure data is greater than a standard value and the second pressure data is less than a second standard value.

10. The rapeseed harvesting device according to claim 9, characterized in that: A recovery pipe (8) is provided on the support plate (1), one end of the recovery pipe (8) is connected to the conveying pipe (3), one end of the recovery pipe (8) close to the partition is located above the chain (32), and the other end of the recovery pipe (8) is connected to the outside.

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