Square bundle bundling machine capable of reducing forage grass picking loss rate

Abstract

The invention discloses a square bundle bundling machine capable of reducing forage grass picking loss rate, which comprises a picking device, a conveying device, a screening device, a vibration device, a pre-compression device, a feeding device, a compression device, a detection device, a driving device and a control device, the picking device comprises a picking device, a picking device wheel, a suction box, a picking device wheel arm and a hydraulic cylinder, the suction box is matched with the picking device for synchronous operation, scattered and short pasture and leaves which are not grabbed by the picking device are sucked in and conveyed to the screening device through the conveying device and then conveyed to the pre-compression device, the vibration device drives the screening device to vibrate, and the pre-compression device drives the picking device to vibrate. Impurities such as soil and broken stones in forage grass can be separated, the industrial camera detects the distance between the bottom of a traction beam of the square bundle bundling machine and the ground, the hydraulic cylinder is automatically driven to adjust the height of the pickup device, the ground is prevented from being scratched, it is guaranteed that the scattered and short forage grass and leaves are effectively grabbed, and the pickup loss rate is reduced.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery, and in particular to a square baler for reducing the loss rate of hay picking. Background Technology

[0002] Forage grasses (especially high-quality varieties such as alfalfa) are the core feed source for livestock farming, and the integrity of their harvest directly determines the cost and efficiency of livestock farming. Leaves are rich in key nutrients such as crude protein, vitamins, and minerals, and are the core carriers of feed nutritional value. The crude protein content of leaves can reach 18%-22%, which is much higher than that of stems (8%-12%). Therefore, the complete collection and recycling of leaves is one of the core keys to improving the efficiency of forage harvesting.

[0003] Square balers are the final equipment for harvesting hay. The pickup device, as the first core component that comes into contact with the hay in the field, determines the harvesting effect based on its height adjustment accuracy and adaptability. In actual harvesting scenarios, because the height of the pickup device is fixed or roughly manually adjustable, it cannot adjust in real time according to the terrain. Protruding terrain can cause the pickup device to rub against uneven surfaces, while depressions can cause a large amount of loose hay and fallen leaves to be missed because the device cannot effectively contact them. Furthermore, the spacing between the pickup device's tines allows short hay and leaves to slip through, leading to an increased harvesting loss rate.

[0004] Therefore, existing square balers have the problem of being unable to pick up loose, short hay and leaves, resulting in an increased pick-up loss rate. Summary of the Invention

[0005] The purpose of this invention is to solve the problem that existing square balers cannot pick up loose, short hay and leaves, resulting in an increased pick-up loss rate.

[0006] To address the aforementioned technical problems, embodiments of the present invention provide a square baler for reducing hay picking loss rate, comprising: a picking device, a conveying device, a screening device, a vibration device, a pre-compression device, a feeding device, a compression device, a detection device, a drive device, a control device, and a human-machine interface module. The human-machine interface module is connected to the control device, and the control device is connected to the drive device. The human-machine interface module and the control device are located in the cab of the square baler, and the drive device is connected to the feeding device via a transmission.

[0007] The detection device includes an industrial camera, a first pressure sensor, and a second pressure sensor. The industrial camera is installed at the bottom of the traction beam of the square baler, and the industrial camera, the first pressure sensor, and the second pressure sensor are connected to the control device.

[0008] The picking device includes a picker, a picker wheel, a suction box, a picker wheel arm, and a hydraulic cylinder. The picker is installed at the inlet end of the square baler and is connected to the drive unit. The picker transports the hay to the feeding device, which then transports the hay to the compression device and through the pre-compression device. The suction box is located on one side of the picker, with its inlet at the bottom of the picker. The outlet of the suction box is connected to one end of the conveying device, and the other end of the conveying device is located at one end of the screening device, which is located on one side of the pre-compression device. The conveying device transports the hay from the suction box to the screening device, which then transports the hay to the pre-compression device. The picker wheel and picker wheel arm are located at both ends of the picker. The hydraulic cylinder is connected to the control unit, with one end fixed to the square baler and the other end fixed to the picker.

[0009] The vibration device is located at the bottom of the screening device. The drive device is connected to the vibration device. The control device controls the drive device to work, drives the vibration device to move, and then drives the screening device to reciprocate in the vertical direction, thereby causing the screening device to vibrate.

[0010] The pre-compression device includes a base plate, an upper connecting plate, and a baffle hook. The base plate is located below the upper connecting plate, and a cavity is formed between the base plate and the upper connecting plate. The baffle hook is located at the outlet end of the cavity and the inlet end of the compression device, and the baffle hook is connected to the drive device. The first pressure sensor is installed on the side of the base plate away from the upper connecting plate.

[0011] The industrial camera and the first pressure sensor transmit the detected signals to the control device, and the human-machine interface module displays them visually. Based on the visual data from the human-machine interface module, the working status of the drive device and the hydraulic cylinder is controlled. The hydraulic cylinder can control the height of the pickup, and the drive device can control the opening or closing of the material stop hook.

[0012] Using the above scheme, the picker transports hay to the feeding device, which then transports the hay to the pre-compressing device to compress it into hay flakes. The feeding device then transports the hay flakes to the compression device to compress them into bales. The suction box works synchronously with the picker, sucking in loose, short hay and leaves that were not picked up by the picker and conveying them to the screening device. The screening device transports the screened hay to the pre-compressing device to compress it into hay flakes, and the feeding device transports the hay flakes to the compression device to compress them into bales. This not only reduces the hay picking loss rate but also improves the quality of the hay bales. An industrial camera collects real-time signals of the distance between the bottom of the traction beam of the square baler and the ground and transmits them to the control device. The control device drives the hydraulic cylinder to adjust the height of the picker. The height of the picker is raised on raised terrain and lowered precisely on sunken terrain, avoiding scratching the ground and ensuring that loose hay is effectively picked up, further reducing the picking loss rate. The vibrating device drives the screening device to vibrate, which can separate impurities such as soil and gravel from the hay, preventing impurities from affecting the quality of the hay bales. The first pressure sensor collects the pressure signal of the bottom plate in real time and transmits it to the control device. The control device drives the drive device to adjust the opening or closing of the baffle hook to prevent hay from piling up in the pre-compression device.

[0013] Furthermore, embodiments of the present invention also provide a square baler for reducing hay picking loss rate. The conveying device includes a curved pipe, a blower, and a buffer box. The curved pipe includes a first curved pipe and a second curved pipe, one end of which is connected to the suction box. The blower includes a first blower and a second blower. The first blower is fixed on the square baler, and its inlet end is connected to the other end of the first curved pipe. The outlet end of the first blower is fixedly connected to and connected to one side of the buffer box. A drive device is respectively connected to the first blower and the second blower. One side of the buffer box is composed of multiple first meshes. A discharge port is provided at the bottom of the buffer box, and one end of a screening device is located below the discharge port.

[0014] Using the above scheme, the first blower, the first bend, and the suction box form a negative pressure adsorption system. The negative pressure from the first blower enhances the suction box's adsorption force on loose, short hay and leaves that have fallen from the pickup unit, especially light, ground-hugging hay and leaves. The structure of the bend is adapted to the layout of the baler, avoiding hay blockage caused by bends in the conveying path. The buffer box receives the hay conveyed by the first blower. Through volume expansion, it slows down the airflow and causes the hay to settle, preventing high-speed airflow from carrying hay out of the discharge port and causing spillage. Furthermore, one side of the buffer box consists of multiple first grids, which not only discharge the high-speed airflow from the first blower conveying hay and reduce the air pressure inside the buffer box, preventing high-speed airflow from carrying hay out of the discharge port and causing spillage, but also remove dust and fine sand, improving the quality of the hay bales.

[0015] Furthermore, embodiments of the present invention also provide a square baler for reducing hay picking loss rate. The first fan includes a first fan housing, a first fan main shaft, a first impeller, and a protective cover. One end of the first fan main shaft is connected to a drive device, the first impeller is fixed to the other end of the first fan main shaft and located inside the first fan housing, the opening end of the protective cover is fixedly connected to the inner side of the first fan housing, and the first impeller is located inside the protective cover.

[0016] The second fan includes a second fan housing, a second fan main shaft, and a second impeller. One end of the second fan main shaft is connected to the drive device for transmission, and the second impeller is fixed to the other end of the second fan main shaft and located inside the second fan housing.

[0017] Using the above scheme, the first fan is used to suck up loose, short hay and blades that have fallen from the pickup, while the air blown by the second fan is used to screen for impurities and hay. The protective cover prevents sucked-in hay from entering the first impeller, avoiding rigid impact or cutting damage to the hay.

[0018] Furthermore, embodiments of the present invention also provide a square baler for reducing hay picking loss rate. The screening device includes a box, a support, a conveying component, elastic elements, a discharge box, a first screen, and a second screen. One end of the box along its length is provided with an opening, which is located below the discharge port. The support is located at the lower part of the box and is inclinedly fixed to the square baler along the length of the box. Four elastic elements are provided, and the two ends of each elastic element are respectively connected to the box and the support. One end of the discharge box is located on one side of the box along its width and away from the opening, and the other end of the discharge box is located in the cavity. The second screen is at the bottom of the box, and the first screen and the conveying component are located inside the box and above the second screen. The first screen is composed of multiple second grids. The second screen is composed of multiple third grids, and the size of the third grids is smaller than that of the second grids. The conveying component is flush with the upper surface of the first screen and is located at the end near the discharge box. A discharge port is also provided on the box, located at the end away from the opening and between the first and second screens. A second pressure sensor is installed on the upper surface of the first screen, and the drive device is connected to the conveying component. A second fan is fixed to the support. One end of a second bend is connected to the outlet of the second fan, and the other end is fixed to and connected to the box, located on the opposite side of the discharge box, between the first and second screens. A vibration device is located between the support and the box. The control device controls the drive device to move, driving the vibration device to reciprocate vertically, thus causing the box to vibrate. The second pressure sensor transmits the detected signal to the control device, which displays it visually via a human-machine interface module. The conveying speed of the conveying component is controlled based on the visualized data from the human-machine interface module.

[0019] The above scheme employs a double-layer structure of a first screen and a second screen, combined with vibration from a vibrating device, to achieve graded screening of forage. The first screen uses size to filter larger forage, which is then conveyed to the discharge box by a conveying component. The remaining smaller forage, leaves, and impurities go to the second screen. The second screen and a second fan use the differences in size and weight to separate the smaller forage, leaves, and impurities. The smaller forage and leaves are then conveyed to the discharge box, while impurities are discharged through the discharge port and under the second screen, thereby improving the quality of the forage bales. A second pressure sensor provides real-time feedback on the weight signal of the forage on the first screen. The control device drives the drive unit to push the forage to the discharge box and into the pre-compression device, preventing forage from accumulating and overflowing, thus avoiding leakage.

[0020] Furthermore, embodiments of the present invention also provide a square baler for reducing hay picking loss rate. The conveying components include drive rollers, a conveyor belt, baffles, and a pusher. Two drive rollers are arranged along the width direction of the housing, and each drive roller is rotatably connected to the housing. One end of each drive roller is connected to a drive device. The conveyor belt is wrapped around the outer periphery of the two drive rollers. Two baffles are provided and are located on both sides of the conveyor belt. The pusher is arranged on the surface of the conveyor belt.

[0021] Using the above scheme, the conveying component drives the conveyor belt to rotate through the drive roller, and transports the larger hay after the first screen to the discharge box. The pusher on the surface of the conveyor belt enhances the ability to grab and push the hay, prevents it from slipping due to vibration, ensures that the hay is accurately delivered to the discharge box, and prevents leakage in the conveying process.

[0022] Furthermore, embodiments of the present invention also provide a square baler for reducing hay picking loss rate. The vibration device includes a main shaft, a disc, a connecting rod mounting lug, a bearing, and a bearing base. The mounting lug is fixed to a second screen and rotatably connected to one end of the connecting rod. The other end of the connecting rod is sleeved on the disc and rotatably connected to the disc. The main shaft passes through the non-center position of the disc and is fixedly connected. One end of the main shaft is connected to a drive device. The bearing cooperates with the main shaft. The bearing base is fixedly connected to the outer ring of the bearing and is fixed on a bracket. The drive device drives the main shaft to rotate, which in turn drives the disc to rotate. The connecting rod drives the mounting lug to reciprocate in the vertical direction, thereby causing the housing to vibrate.

[0023] Using the above scheme, the vibration device drives the eccentrically set disk to rotate through the main shaft, and the circular motion is converted into reciprocating vibration of the box in the vertical direction through the connecting rod. The transmission structure is compact and the power loss is small, which can produce a stable vibration effect.

[0024] The beneficial effects of this invention are: This invention discloses a square baler for reducing hay picking loss rate, comprising a picking device, a conveying device, a screening device, a vibrating device, a pre-compression device, a feeding device, a compression device, a detection device, a driving device, and a control device. The detection device includes an industrial camera. The picking device includes a picker, a picker wheel, a suction box, a picker wheel arm, and a hydraulic cylinder. The suction box works synchronously with the picker to suck in loose, short hay and leaves that have not been picked up by the picker and conveys them to the screening device via the conveying device, and then to the pre-compression device. The vibrating device drives the screening device to vibrate, which can separate impurities such as soil and gravel from the hay. The industrial camera detects the distance between the bottom of the square baler's traction beam and the ground, and automatically drives the hydraulic cylinder to adjust the height of the picker, which avoids scraping the ground and ensures that loose, short hay and leaves are effectively picked up, thus reducing the picking loss rate.

[0025] Other features and corresponding beneficial effects of the present invention will be described in the latter part of the specification, and it should be understood that at least some of the beneficial effects will become obvious from the description in the specification. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a square baler for reducing hay picking loss rate according to an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of the conveying device, screening device and vibration device; Figure 3 for Figure 2 A schematic diagram of the structure of the screening device and the vibration device; Figure 4 for Figure 3 A sectional view; Figure 5 for Figure 4 A schematic diagram of the conveying component; Figure 6 This is a control principle diagram of a square baler for reducing hay picking loss rate, provided in an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures: 1. Pickup device; 11. Pickup device; 12. Pickup device wheel; 13. Suction box; 14. Pickup device wheel arm; 2. Conveying device; 21. Bend; 211. First bend; 212. Second bend; 22. Fan; 221. First fan; 222. Second fan; 23. Buffer box; 231. Discharge port; 3. Screening device; 31. Box body; 311. Opening; 312. Discharge port; 32. Support; 33. Conveying components; 331. Drive roller; 332. Conveyor belt; 333. Baffle; 334. Pushing component; 34. Elastic element; 35. Discharge box; 36. First screen; 37. Second screen; 4. Vibration device; 41. Spindle; 42. Disc; 43. Connecting rod; 44. Mounting lug; 45. Bearing; 46. Bearing base; 5. Pre-compression device; 51. Base plate; 52. Upper connecting plate; 53. Material stop hook; 6. Feeding device; 7. Compression device; 8. Detection device; 81. Industrial camera; 82. First pressure sensor; A. Vertical direction. Detailed Implementation

[0028] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Although the description of the present invention is presented in conjunction with preferred embodiments, this does not mean that the features of the invention are limited to these embodiments. On the contrary, the purpose of describing the invention in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of the present invention. To provide a deep understanding of the invention, many specific details will be included in the following description. The invention may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of the invention, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0029] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in during use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0031] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0032] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0033] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. The present invention will be further described in detail below with reference to the accompanying drawings.

[0034] To address the aforementioned technical problems, embodiments of the present invention disclose a square baler for reducing hay picking loss rate, such as... Figure 1 and Figure 6 As shown, it includes a picking device 1, a conveying device 2, a screening device 3, a vibration device 4, a pre-compression device 5, a feeding device 6, a compression device 7, a detection device 8, a drive device, a control device, and a human-machine interaction module. The human-machine interaction module is connected to the control device, and the control device is connected to the drive device. The human-machine interaction module and the control device are located in the cab of the square baler. The drive device is connected to the feeding device 6 via a transmission.

[0035] The detection device 8 includes an industrial camera 81, a first pressure sensor 82, and a second pressure sensor. The industrial camera 81 is installed at the bottom of the traction beam of the square baler. The industrial camera 81, the first pressure sensor 82, and the second pressure sensor are connected to the control device.

[0036] The picking device 1 includes a picker 11, a picker wheel 12, a suction box 13, a picker wheel arm 14, and a hydraulic cylinder. The picker 11 is installed at the inlet end of the square baler and is connected to the drive unit. The picker 11 conveys the hay to the feeding device 6, which in turn conveys the hay to the compression device 7 and then to the pre-compression device 5. The suction box 13 is located on one side of the picker 11, with its inlet end at the bottom of the picker 11 and its outlet end connected to the conveyor system. One end of the device 2 is connected, and the other end of the conveying device 2 is set at one end of the screening device 3. The screening device 3 is located on one side of the pre-compression device 5. The conveying device 2 transports the hay in the suction box 13 to the screening device 3, and the screening device 3 then transports the hay to the pre-compression device 5. The pickup wheel 12 and the pickup wheel arm 14 are set at both ends of the pickup 11. The hydraulic cylinder is connected to the control device. One end of the hydraulic cylinder is fixed on the square baler, and the other end of the hydraulic cylinder is fixed on the pickup 11.

[0037] The vibration device 4 is located at the lower part of the screening device 3. The drive device is connected to the vibration device 4 through transmission. The control device controls the drive device to work, drives the vibration device 4 to move, and then drives the screening device 3 to reciprocate in the vertical direction A, thereby causing the screening device 3 to vibrate.

[0038] The pre-compression device 5 includes a base plate 51, an upper connecting plate 52, and a baffle hook 53. The base plate 51 is located below the upper connecting plate 52, and a cavity is formed between the base plate 51 and the upper connecting plate 52. The baffle hook 53 is located at the outlet end of the cavity and the inlet end of the compression device 7, and the baffle hook 53 is connected to the drive device. The first pressure sensor 82 is installed on the side of the base plate 51 away from the upper connecting plate 52.

[0039] The industrial camera 81 and the first pressure sensor 82 transmit the detected signals to the control device, and the human-machine interaction module displays them visually. Based on the visual data from the human-machine interaction module, the working status of the drive device and the hydraulic cylinder is controlled. The hydraulic cylinder can control the height of the pick-up device 11, and the drive device can control the conveying speed of the conveying component 33 and the opening or closing status of the stop hook 53.

[0040] Specifically, in this embodiment, the driving device can be a motor drive device or a hydraulic drive device. Those skilled in the art can design it according to actual conditions and specific needs. This embodiment does not make specific limitations in this regard.

[0041] More specifically, in this embodiment, the transmission connection method includes belt drive, chain drive, gear drive, etc. Those skilled in the art can design according to actual conditions and specific needs, and this embodiment does not make specific limitations in this regard.

[0042] More specifically, in this embodiment, the feeding device 6 feeds the forage into the space between the bottom plate 51 and the upper connecting plate 52 of the pre-compressing device 5, compressing the forage into grass flakes. When the pre-compressing device 5 obtains enough grass flakes, the baffle hook 53 opens, and the feeding device 6 feeds the grass flakes into the compression device, which then compresses multiple grass flakes into a bale.

[0043] More specifically, in this embodiment, the feeding device 6 delivers hay between the bottom plate 51 and the upper connecting plate 52 of the pre-compressing device 5. The first pressure sensor 82 is used to detect the pressure on the bottom plate 51 of the pre-compressing device 5. When the first pressure sensor 82 detects that the pressure on the bottom plate 51 is less than a certain pressure threshold range, the control device drives the drive device to adjust the baffle hook 53 to remain closed. When the first pressure sensor 82 detects that the pressure on the bottom plate 51 is greater than a certain pressure threshold range, the control device drives the drive device to adjust the baffle hook 53 to open, and the feeding device 6 feeds the hay into the compression device. The setting of the first pressure sensor 82 can not only ensure the compactness of the hay but also prevent hay clogging.

[0044] More specifically, in this embodiment, the industrial camera 81 collects the distance signal between the bottom of the traction beam of the square baler and the ground in real time. When the industrial camera 81 detects that the distance between the bottom of the traction beam of the square baler and the ground is less than a certain distance threshold range, the control device drives the hydraulic cylinder to raise the height of the pickup 11. When the industrial camera 81 detects that the distance between the bottom of the traction beam of the square baler and the ground is greater than a certain distance threshold range, the control device drives the hydraulic cylinder to lower the height of the pickup 11. This avoids scraping the ground and ensures that loose hay is effectively picked up, further reducing the pickup loss rate and achieving automated control.

[0045] Using the above scheme, the picker 11 transports the hay to the feeding device 6, which then transports the hay to the pre-compressing device 5 to compress it into hay flakes. The feeding device 6 then transports the hay flakes to the compression device 7 to compress them into hay bales. The suction box 13 works synchronously with the picker 11 to suck in the loose, short hay and leaves that were not picked up by the picker 11 and transport them through the conveying device 2 to the screening device 3. The screening device 3 transports the screened hay to the pre-compressing device 5 to compress it into hay flakes, and the feeding device 6 transports the hay flakes to the compression device 7 to compress them into hay bales. This not only reduces the hay picking loss rate but also improves the quality of the hay bales. Industrial camera 81 collects real-time data on the distance between the bottom of the traction beam of the square baler and the ground, transmitting this data to the control device. The control device drives the hydraulic cylinder to adjust the height of the pickup 11. The pickup 11 is raised on raised terrain and lowered precisely on recessed terrain, preventing it from scraping the ground and ensuring that loose hay and residual hay at the bottom are effectively picked up, further reducing the pickup loss rate. Vibration device 4 drives screening device 3 to vibrate, separating impurities such as soil and gravel from the hay, preventing these impurities from affecting the quality of the hay bales. First pressure sensor 82 collects real-time pressure signals from the base plate 51 and transmits them to the control device. The control device drives the drive unit to adjust the opening or closing of the baffle hook 53, preventing hay from accumulating in the pre-compression device 5.

[0046] According to another specific embodiment of the present invention, such as Figure 2As shown, the conveying device 2 includes a bend 21, a blower 22, and a buffer box 23. The bend 21 includes a first bend 211 and a second bend 212, with one end of the first bend 211 connected to the suction box 13. The blower 22 includes a first blower 221 and a second blower 222. The first blower 221 is fixed to the square baler, and its inlet end is connected to the other end of the first bend 211. Its outlet end is fixedly connected to one side of the buffer box 23. A drive device is connected to both the first blower 221 and the second blower 222. One side of the buffer box 23 is composed of multiple first meshes. A discharge port 231 is located at the bottom of the buffer box 23, and one end of the screening device 3 is located below the discharge port 231.

[0047] Specifically, the first grid can be circular, rectangular, square, etc. Those skilled in the art can design it according to actual conditions and specific needs. This embodiment does not make specific limitations in this regard.

[0048] More specifically, when the first grid is a square grid, the side length of the first grid is 1mm-3mm. Those skilled in the art can design it according to the actual situation and specific needs. This embodiment does not make specific limitations in this regard.

[0049] Using the above scheme, the first blower 221, the first bend pipe 211, and the suction box 13 form a negative pressure adsorption system. The negative pressure from the first blower 221 enhances the suction box 13's adsorption force on loose, short hay and leaves that have fallen from the picker 11, especially light, ground-hugging hay and leaves. The structure of the bend pipe 21 is suitable for the layout of the baler, avoiding hay blockage caused by bends in the conveying path. The buffer box 23 receives the hay conveyed by the first blower 221. Through volume expansion, it slows down the airflow and causes the hay to settle, preventing high-speed airflow from carrying hay out of the discharge port 231 and causing spillage. Furthermore, one side of the buffer box 23 is composed of multiple first grids, which not only discharge the high-speed airflow from the first blower 221 when conveying hay and reduce the air pressure inside the buffer box 23 to prevent high-speed airflow from carrying hay out of the discharge port 231 and causing spillage, but also remove dust and fine sand, improving the quality of the hay bales.

[0050] According to another specific embodiment of the present invention, such as Figure 2 As shown, the first fan 221 includes a first fan housing, a first fan main shaft, a first impeller, and a protective cover. One end of the first fan main shaft is connected to the drive device for transmission. The first impeller is fixed at the other end of the first fan main shaft and located inside the first fan housing. The open end of the protective cover is fixedly connected to the inner side of the first fan housing, and the first impeller is located inside the protective cover.

[0051] The second fan 222 includes a second fan housing, a second fan main shaft, and a second impeller. One end of the second fan main shaft is connected to the drive device for transmission, and the second impeller is fixed to the other end of the second fan main shaft and located inside the second fan housing.

[0052] Using the above scheme, the first fan 221 is used to suck up loose, short hay and blades that have fallen from the pickup, while the air blown by the second fan 222 is used to screen impurities and hay. The protective cover can prevent sucked-in hay from entering the first impeller, avoiding rigid impact or cutting damage to the hay.

[0053] According to another specific embodiment of the present invention, such as Figure 3 and Figure 6 As shown, the screening device 3 includes a housing 31, a support 32, a conveying component 33, elastic elements 34, a discharge box 35, a first screen 36, and a second screen 37. The housing 31 has an opening 311 at one end along its length, located below the discharge port 231. The support 32 is located at the lower part of the housing 31 and is inclined and fixed to the square baler along the length of the housing 31. Four elastic elements 34 are provided, with each elastic element 34 connected to the housing 31 and the support 32 at both ends. One end of the discharge box 35 is located on one side of the housing 31 along its width, away from the opening 311, and the other end of the discharge box 35 is located inside the cavity. The second screen 37 is at the bottom of the housing 31. The first screen 36 and the conveying component 33 are located inside the housing 31 and above the second screen 37. The first screen 36 consists of multiple second meshes; the second screen 37 consists of multiple third meshes, with the third meshes having a smaller size than the second meshes. The conveying component 33 is flush with the upper surface of the first screen 36 and is located at one end near the discharge box 35. The box 31 is also provided with a discharge port 312, which is located at one end of the box 31 away from the opening 311 and between the first screen 36 and the second screen 37. The second pressure sensor is installed on the upper surface of the first screen 36 and the drive device is connected to the conveying component 33. The second fan 222 is fixed on the bracket 32. One end of the second bend 212 is connected to the outlet end of the second fan 222, and the other end of the second bend 212 is fixed and connected to the box 31 and located on the opposite side of the discharge box 35. It is located between the first screen 36 and the second screen 37. The vibration device 4 is located between the bracket 32 ​​and the box 31. The control device controls the drive device to work, drives the vibration device 4 to move, and thus drives the box 31 to reciprocate in the vertical direction A, thereby causing the box 31 to vibrate. The second pressure sensor transmits the detected signal to the control device, and the human-machine interface module displays the signal visually. The conveying speed of the conveying component 33 is controlled based on the visual data from the human-machine interface module.

[0054] Specifically, in this embodiment, the second pressure sensor is installed on the upper surface of the first screen 36. When the second pressure sensor detects that the pressure of the first screen 36 is less than a certain pressure threshold range, the control device drives the drive device to adjust the conveying component 33 to maintain a normal speed. When the second pressure sensor detects that the pressure of the first screen 36 is greater than a certain pressure threshold range, the control device drives the drive device to increase the speed of the conveying component 33. The setting of the second pressure sensor can not only prevent the hay on the first screen 36 from overflowing, but also realize automated control.

[0055] More specifically, the second and third grids can be circular, rectangular, square, etc. Those skilled in the art can design them according to actual conditions and specific needs. This embodiment does not impose any specific limitations on this.

[0056] More specifically, when the second and third grids are square grids, the side length of the second grid is 10mm-20mm and the side length of the third grid is 3mm-8mm. Those skilled in the art can design according to actual conditions and specific needs, and this embodiment does not make specific limitations in this regard.

[0057] Using the above scheme, the screening device 3 employs a double-layer structure of a first screen 36 and a second screen 37. Combined with the vibration of the vibration device 4, it achieves graded screening of forage. The first screen 36 uses size to screen larger forage, which is then conveyed to the discharge box via the conveying component 33. The remaining smaller forage, leaves, and impurities go to the second screen 37. The second screen 37 and the second blower 222 use the differences in size and weight to separate the smaller forage, leaves, and impurities. The smaller forage and leaves are conveyed to the discharge box 35, while impurities are discharged through the discharge port 312 and under the second screen 37, thereby improving the quality of the forage bales. A second pressure sensor provides real-time feedback on the weight signal of the forage on the first screen 36. The control device drives the drive unit to move the conveying component 33 to push the forage to the discharge box 35 and into the pre-compression device 5, preventing forage accumulation and overflow.

[0058] According to another specific embodiment of the present invention, such as Figure 4 and Figure 5 As shown, the conveying component 33 includes a drive roller 331, a conveyor belt 332, a baffle 333, and a pusher 334. Two drive rollers 331 are arranged along the width direction of the housing 31, and each drive roller 331 is rotatably connected to the housing 31. One end of each drive roller 331 is connected to the drive device. The conveyor belt 332 is wrapped around the outer periphery of the two drive rollers 331. Two baffles 333 are provided and are located on both sides of the conveyor belt 332 respectively. The pusher 334 is arranged on the surface of the conveyor belt 332.

[0059] Using the above scheme, the conveying component 33 drives the conveyor belt 332 to rotate through the drive roller 331, and conveys the larger hay after screening by the first screen 36 to the discharge box 35. The pusher 334 on the surface of the conveyor belt 332 enhances the ability to grab and push the hay, prevents it from slipping due to vibration, ensures that the hay is accurately delivered to the discharge box 35, and prevents leakage in the conveying process.

[0060] According to another specific embodiment of the present invention, such as Figure 3 As shown, the vibration device 4 includes a main shaft 41, a disc 42, a connecting rod 43, a mounting ear plate 44, a bearing 45, and a bearing base 46. The mounting ear plate 44 is fixed on the second screen 37 and is rotatably connected to one end of the connecting rod 43. The other end of the connecting rod 43 is sleeved on the disc 42 and is rotatably connected to the disc 42. The main shaft 41 passes through the non-center position of the disc 42 and is fixedly connected. One end of the main shaft 41 is connected to the drive device. The bearing 45 cooperates with the main shaft 41. The bearing base 46 is fixedly connected to the outer ring of the bearing 45 and is fixed on the bracket 32. The drive device drives the main shaft 41 to rotate, which drives the disc 42 to rotate. Through the connecting rod 43, the mounting ear plate 44 reciprocates along the vertical direction A, thereby causing the housing 31 to vibrate.

[0061] Using the above scheme, the vibration device 4 drives the eccentrically set disk 42 to rotate through the main shaft 41, and the circular motion is converted into the reciprocating vibration of the box 31 along the vertical direction A through the connecting rod 43. The transmission structure is compact and the power loss is small, which can produce a stable vibration effect.

[0062] While the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the invention to these descriptions. Various changes in form and detail can be made by those skilled in the art, including several simple deductions or substitutions, without departing from the spirit and scope of the invention.

Claims

1. A square bale baler for reducing the loss rate of pasture grasses, characterised in that, The square bale baler comprises a pickup device, a conveying device, a screening device, a vibrating device, a pre-compression device, a feeding device, a compression device, a detection device, a driving device, a control device, and a human-machine interaction module. The detection device comprises an industrial camera, a first pressure sensor, and a second pressure sensor. The pickup device comprises a pickup, a pickup wheel, a suction box, a pickup wheel arm, and a hydraulic cylinder. The vibrating device is located at the lower part of the screening device. The pre-compression device comprises a bottom plate, an upper connecting plate, and a material blocking hook. The industrial camera and the first pressure sensor transmit the detected signals to the control device. The human-machine interaction module can visually display the data, and the working status of the driving device and the hydraulic cylinder can be controlled according to the visual data of the human-machine interaction module. The hydraulic cylinder can control the height of the pickup, and the driving device can control the opening or closing state of the material blocking hook.

2. A square baler for reducing loss rates of pasture grasses according to claim 1, characterised in that, The conveying device comprises a bend pipe, a fan, and a buffer tank, wherein the bend pipe comprises a first bend pipe and a second bend pipe, one end of the first bend pipe is communicated with the suction tank; the fan comprises a first fan and a second fan, the first fan is fixed on the square bale baler, the inlet end of the first fan is communicated with the other end of the first bend pipe, the outlet end of the first fan is fixedly connected with and communicated with one side of the buffer tank, the driving device is respectively drivingly connected with the first fan and the second fan, one side of the buffer tank is composed of a plurality of first grids, the lower part of the buffer tank is provided with a discharge port, one end of the screening device is located below the discharge port.

3. A square baler for reducing loss rates of forage grasses as claimed in claim 2, wherein, The first fan comprises a first fan box body, a first fan main shaft, a first impeller and a protective cover, one end of the first fan main shaft is drivingly connected with the driving device, the first impeller is fixed at the other end of the first fan main shaft and located inside the first fan box body, the opening end of the protective cover is fixedly connected with the inner side of the first fan box body, and the first impeller is located inside the protective cover. The second fan comprises a second fan box body, a second fan main shaft and a second impeller, one end of the second fan main shaft is drivingly connected with the driving device, and the second impeller is fixed at the other end of the second fan main shaft and located inside the second fan box body.

4. A square baler according to claim 3, wherein, The screening device comprises a box, a support, a conveying component, an elastic element, a discharge box, a first screen and a second screen. One end of the box is provided with an opening part, which is located at the lower part of the discharge port. The support is located at the lower part of the box and is fixed on the square bale baler in a length direction of the box. The elastic element is provided with four, and the two ends of each elastic element are connected with the box and the support respectively. One end of the discharge box is provided on one side of the box in a width direction and away from the opening part, and the other end of the discharge box is located in the cavity. The second screen is the bottom of the box, the first screen and the conveying component are located in the interior of the box and above the second screen, and the first screen is composed of a plurality of second meshes. The second screen is composed of a plurality of third meshes, and the specification of the third mesh is smaller than that of the second mesh. The conveying component is flush with the upper surface of the first screen, and the conveying component is provided close to one end of the discharge box. The box is further provided with a discharge port, which is provided at one end of the box away from the opening part and between the first screen and the second screen. The second pressure sensor is installed on the upper surface of the first screen, the driving device is in transmission connection with the conveying component, the second fan is fixed on the support, one end of the second elbow pipe is in communication with the outlet end of the second fan, the other end of the second elbow pipe is fixedly connected and communicated on the box and located on the opposite side of the discharge box and between the first screen and the second screen. The vibration device is located between the support and the box. The control device controls the driving device to work, drives the vibration device to move, and then drives the box to move in the height direction of the square bale baler, so that the box vibrates. The second pressure sensor transmits the detected signal to the control device, and the man-machine interaction module is visually displayed. According to the visual data of the man-machine interaction module, the conveying speed of the conveying component is controlled.

5. A square baler for reducing loss rates of forage grasses as claimed in claim 4, wherein, The conveying component comprises a driving roller, a conveying belt, a baffle and a pushing piece. Two driving rollers are arranged in the width direction of the box, and each driving roller is rotatably connected with the box. One end of each driving roller is in transmission connection with the driving device. The conveying belt is arranged around the outer periphery of the two driving rollers. The baffle is provided with two and located on both sides of the conveying belt. The pushing piece is arranged on the surface of the conveying belt.

6. A square baler for reducing loss rates of pasture grasses according to claim 5, characterised in that, The vibration device comprises a main shaft, a disc, a connecting rod, a mounting lug plate, a bearing and a bearing base, the mounting lug plate is fixed on the second screen, and the mounting lug plate is rotationally connected with one end of the connecting rod, the other end of the connecting rod is sleeved on the disc and rotationally connected with the disc, the main shaft passes through a non-center position of the disc and is fixedly connected, one end of the main shaft is drivingly connected with the driving device, the bearing is matched with the main shaft, the bearing base is fixedly connected with an outer ring of the bearing, and the bearing base is fixed on the support, the driving device drives the main shaft to rotate, drives the disc to rotate, drives the mounting lug plate to reciprocate along the height direction of the square bale baler through the connecting rod, and further makes the box vibrate.

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