Crawler belt self-discharging device for grains

Abstract

The invention provides a grain crawler belt self-unloading device, and belongs to the technical field of grain self-unloading. The grain crawler belt self-discharging device comprises a box body, a discharging opening, a roller assembly, a conveying belt, a push plate assembly, a winding reel assembly, a scraper assembly and a box door assembly. The conveying belt is wound on the outer side of the roller assembly, the bottom of the push plate assembly is connected with the other end of the conveying belt, and the winding reel assembly is connected with the push plate assembly, so that when the roller assembly rotates and the winding reel assembly takes up or takes off a wire, the roller assembly and the winding reel assembly are matched to drive the push plate assembly to move; and compared with the mode that the box body is lifted and the box body is inclined, the grain is discharged, the situation that a vehicle turns over due to the fact that the soil texture of an unloading site is soft can be avoided, and then the use safety and applicability of the product are improved.

Description

Technical Field

[0001] This invention belongs to the field of grain self-unloading technology, specifically relating to a grain tracked self-unloading device. Background Technology

[0002] In related technologies, when transporting grain, the grain is usually poured into the cargo compartment of a transport vehicle; then, the transport vehicle is moved to a predetermined location, and the grain is unloaded.

[0003] Existing technology (authorization announcement number: CN118306293B) discloses a support assembly for a mining dump truck, relating to the technical field of dump truck accessory devices. It includes a support base frame, support rods, support plates, and locking components. The support base frame is installed on the side beam of the dump truck frame and located above the chassis. One end of the support rod is hinged to the support base frame along a rotation direction parallel to the truck bed, and the other end of the support rod is hinged to the support plate along a rotation direction parallel to the truck bed. A support groove is provided at the bottom of the truck bed along its length, which slides in connection with the support plate. The locking components are connected to the support rods and support plates. In this application, when the truck bed is tilted, the support rods are vertically positioned. The locking components can lock the connection angle between the support rods and the support plate, fixing the positions of the support plate and support rods. The support plate supports the truck bed along a tilt direction perpendicular to the bottom of the truck bed, thereby reducing the load on the hydraulic system, lowering the risk of hydraulic system damage when lifting the truck bed, and extending the service life of the hydraulic system.

[0004] In this prior art, the grain is unloaded by tilting the car body to tilt it. However, this method requires a certain level of hardness in the unloading area. If the soil at the unloading area is soft, the vehicle may overturn, which reduces the safety and applicability of the product. Summary of the Invention

[0005] To address the problem in existing technologies where lifting trucks are used for unloading grain, which can easily lead to vehicle overturning in soft soil areas, thus reducing product safety and applicability, this invention provides a grain tracked self-unloading device. This device uses a pusher assembly to move the grain for unloading. The tilted unloading mechanism, relative to the lifting truck body, avoids overturning in soft soil areas, thereby improving product safety and applicability. The specific technical solution is as follows: A grain tracked self-unloading device includes: a box body, a discharge port, a roller assembly, a conveyor belt, a pusher plate assembly, a winding drum assembly, a scraper assembly, and a box door assembly. The box body is a hollow cavity with an opening at the top. The discharge port is located at one end of the box body. The roller assembly is rotatably connected to the bottom of the box body near the discharge port. The conveyor belt is placed at the bottom of the box body, with one end connected to the roller assembly and wrapped around the outside of the roller assembly. The pusher plate assembly is located inside the box body, with its bottom connected to the other end of the conveyor belt. The winding drum assembly is installed inside the box body, located on the side of the pusher plate assembly opposite to the discharge port, and connected to the pusher plate assembly. The scraper assembly is installed at the bottom of the box body, below the roller assembly, and in contact with the conveyor belt. The box door assembly is installed at the discharge port.

[0006] In addition, the grain tracked self-unloading device in the above-mentioned technical solution provided by the present invention may also have the following additional technical features: In the above technical solution, the roller assembly includes: a roller support, a first hydraulic motor, a roller body, a connecting flange, and connecting holes; two roller supports are installed at the bottom of the housing, and there is a gap between the two roller supports; the first hydraulic motor is installed on one roller support; the roller body is a hollow cavity with openings at both ends, one end of the roller body is rotatably connected to the other roller support, and the other end of the roller body is wrapped around the outside of the output end of the first hydraulic motor; the connecting flange is installed inside the other end of the roller body, and the connecting flange is connected to the output end of the first hydraulic motor; multiple connecting holes are provided on the outer wall of the roller body.

[0007] In the above technical solution, the cable reel assembly includes: a first mounting base, a cable reel body, a second hydraulic motor, a first guide frame, a first guide wheel, a connecting pin, and a wire rope; the first mounting base has a mounting groove, is installed at the bottom of the housing, and is located on the side of the push plate assembly away from the discharge port; the cable reel body is located in the mounting groove and is rotatably connected to the first mounting base; the second hydraulic motor is installed on the first mounting base and is connected to the cable reel body; the first guide frame has a first receiving groove, and is connected to the push plate assembly; the first guide wheel is located in the first receiving groove and is rotatably connected to the first guide frame; the connecting pin is connected to the push plate assembly and is located above the first guide wheel; one end of the wire rope is connected to the cable reel body, the other end of the wire rope is connected to the connecting pin, the wire rope is wound around the outside of the cable reel body, and the wire rope is wound around the outside of the first guide wheel.

[0008] In the above technical solution, the cable reel assembly further includes: a limiting disc, a mounting plate, a limiting rod, a limiting plate, and a first spring; a limiting groove is provided on the outer side of the limiting disc, the limiting disc is fitted onto the outer side of the connecting pin, the wire rope is embedded in the limiting groove, and the wire rope is connected to the limiting disc; the mounting plate is connected to the side of the push plate assembly near the cable reel body, and the mounting plate is located above the connecting pin; the limiting rod passes through the mounting plate, and the limiting rod is located above the limiting disc; the limiting plate is fitted onto the outer side of the limiting rod, and the limiting plate is located above the mounting plate; the first spring is fitted onto the outer side of the limiting rod, one end of the first spring is connected to the mounting plate, and the other end of the first spring is connected to the limiting plate.

[0009] In the above technical solution, the door assembly includes: a door body, a tilting plate, a hydraulic cylinder, a first locking block, and a second locking block; the door body is fastened to the discharge port; the tilting plate is L-shaped, with one end of each tilting plate rotatably connected to the top of the two sides of the box body, and the two tilting plates are respectively connected to the two sides of the top of the box body; the two hydraulic cylinders are respectively rotatably connected to the two sides of the box body, and the output ends of the two hydraulic cylinders are respectively rotatably connected to the middle of the two tilting plates; the first locking block is L-shaped, with two first locking blocks connected to the bottom of the end of the box body, and the two first locking blocks are located on both sides of the discharge port; the second locking block is L-shaped, with two second locking blocks connected to the bottom sides of the door body, and the second locking blocks are staggered with the first locking blocks.

[0010] In the above technical solution, the door assembly further includes: a contact seat and a contact switch; the two contact seats are respectively connected to two hydraulic cylinders; the two contact switches are respectively connected to both sides of the box body, and the two contact switches are respectively opposite to the two contact seats; wherein, the two contact switches are respectively electrically connected to the first hydraulic motor and the second hydraulic motor.

[0011] In the above technical solution, the pusher assembly further includes: a pusher plate body, a first scraper, a second scraper, and a second spring; the pusher plate body is located inside the housing, connected to the conveyor belt, and connected to the winding drum assembly; the first scraper is arc-shaped, connected to the pusher plate body, and placed on the conveyor belt; multiple second scrapers are rotatably connected to both sides of the pusher plate body, and the second scrapers are in contact with the inner wall of the housing; one end of the second spring is connected to the pusher plate body, and the other end of the second spring is connected to the second scraper; wherein, the second scraper is an elastic body.

[0012] In the above technical solution, the grain tracked self-unloading device further includes: a moving mechanism, a folding cover assembly, guide rods, second guide frames, second guide wheels, and connecting rods; the moving mechanism is installed on both sides of the opening at the top of the box; one end of the folding cover assembly is rotatably connected to one side of the opening of the box, and both sides of the other end of the folding cover assembly are simultaneously connected to the moving mechanism; two guide rods are respectively installed on both sides of the box; multiple second guide frames are respectively connected to both sides of the folding cover assembly, and multiple second guide frames are respectively wound around the two guide rods; guide grooves are provided on the outer wall of the second guide wheels, at least two second guide wheels are installed in the second guide frames, and the guide rods are simultaneously embedded in the guide grooves of at least two second guide wheels; the connecting rod is U-shaped, and both ends of the connecting rod are respectively connected to the second guide frames located on both sides of the box.

[0013] In the above technical solution, the moving mechanism includes: a synchronous shaft, a first sprocket, an adjusting mechanism, a second sprocket, and a chain; the synchronous shaft passes through the end of the box body away from the discharge port, and the synchronous shaft is rotatably connected to the box body; two first sprockets are respectively fitted on both ends of the synchronous shaft, and the two first sprockets are located on both sides of the box body; two adjusting mechanisms are installed on both sides of the box body near the discharge port; two second sprockets are rotatably connected to the two adjusting mechanisms respectively; the chain is fitted on the outside of the first sprocket and the second sprocket located on one side, and the chain is connected to the other end of the folding cover assembly.

[0014] In the above technical solution, the adjustment mechanism includes: a mounting frame, an adjustment groove, a support frame, a connecting shaft, a nut, and an adjustment bolt; the mounting frame has a second receiving groove and is mounted on the side wall of the housing; the adjustment groove is elongated, and two adjustment grooves are located on both sides of the mounting frame; the support frame is U-shaped and is located within the second receiving groove; the connecting shaft passes through the two adjustment grooves and the support frame in sequence, and a second sprocket is fitted on the outside of the connecting shaft; the nut has an internal thread and is mounted at the end of the mounting frame; the adjustment bolt has an external thread on its outer wall, and the adjustment bolt passes through the nut and the mounting frame in sequence, and is connected to the support frame; wherein the internal thread and the external thread are compatible.

[0015] The grain tracked self-unloading device of the present invention has the following advantages compared with the prior art: 1. By having the conveyor belt wrapped around the outside of the roller assembly, connecting the bottom of the pusher assembly to the other end of the conveyor belt, and connecting the winding drum assembly to the pusher assembly, when the roller assembly rotates and the winding drum assembly takes in or releases the wire, the roller assembly and winding drum assembly work together to drive the pusher assembly to move. This allows the pusher assembly to move the grain, thus completing the unloading of the grain. Compared to lifting the container, tilting the container to unload the grain avoids the risk of overturning due to soft soil at the unloading site, thereby improving the safety and applicability of the product. Since there is no need to lift the container, there are no restrictions on the height of the unloading site, further enhancing the product's applicability. Moreover, by using the pusher assembly to move the grain, compared to unloading by tilting, the unloading rate is increased, preventing grain residue in the container and improving unloading efficiency. Simultaneously, unloading can be carried out while the container is moving, enabling quantitative and batch unloading, further enhancing the user experience.

[0016] 2. By installing the connecting flange inside the other end of the roller body, the roller body supports the connecting flange, thereby enabling the roller body and the connecting flange to rotate synchronously. By rotatably connecting one end of the roller body to another roller support and connecting the connecting flange to the output end of the first hydraulic motor, the roller body and the first hydraulic motor cooperate to support the roller body, thereby enabling the first hydraulic motor to drive the roller body to rotate.

[0017] 3. By connecting the connecting pin to the push plate assembly and positioning the connecting pin above the first guide wheel, the push plate assembly supports the connecting pin. By connecting one end of the wire rope to the drum body and the other end to the connecting pin, and simultaneously winding the wire rope around the outside of both the drum body and the first guide wheel, the wire rope connects the drum body and the push plate assembly together. This allows the drum body to take in or release the wire rope when it rotates, driving the push plate assembly to move. Consequently, the first guide wheel supports the wire rope, ensuring it remains taut and preventing damage due to coiling.

[0018] 4. By fitting the first spring onto the outside of the limiting rod, connecting one end of the first spring to the mounting plate, and connecting the other end of the first spring to the limiting plate, the mounting plate supports the limiting plate and the limiting rod through the first spring. This allows the limiting rod to press the wire rope tightly into the limiting groove of the limiting plate, preventing the wire rope from coming out of the limiting groove and preventing the wire rope from deviating, thereby improving the stability of the wire rope.

[0019] 5. By rotatably connecting two hydraulic cylinders to both sides of the box body and rotatably connecting the conveying ends of the two hydraulic cylinders to the middle of the two tilting plates, the hydraulic cylinders can drive the tilting plates to rotate and rotate accordingly with the position of the tilting plates, thus ensuring that the tilting plates can drive the box door body to rotate. By connecting two L-shaped first locking blocks to the bottom of the box body and two L-shaped second locking blocks to the bottom sides of the box door body, and staggering the second locking blocks with the first locking blocks, when the box door body rotates downward and closes the discharge port, the first and second locking blocks stagger to lock the box door body, preventing the box door body from moving out of the discharge port, thereby preventing grain from flowing out of the discharge port and improving the efficiency of grain storage and transportation.

[0020] 6. By connecting two contact switches to both sides of the housing, the two contact switches are respectively positioned opposite two contact seats, and the two contact switches are electrically connected to the first hydraulic motor and the second hydraulic motor, respectively. This allows the housing to support the two contact switches. When the hydraulic cylinder moves the contact seats to a predetermined position (at which point the housing door is fully open), the contact seats contact the contact switches, releasing the lock on the first and second hydraulic motors. This allows the operator to remotely start the first and second hydraulic motors, thus preventing the push plate assembly from moving the grain when the housing door is not fully open, which could cause the grain to impact the housing door, thereby improving the safety of product use.

[0021] 7. By connecting the arc-shaped first scraper to the pusher plate body and placing the first scraper on the conveyor belt, the pusher plate body can drive the first scraper to move, thereby enabling the first scraper to scrape off the grain remaining on the conveyor belt and improve the grain unloading rate. By rotatably connecting multiple second scrapers to both sides of the pusher plate body, connecting one end of the second spring to the pusher plate body, and connecting the other end of the second spring to the second scraper, the pusher plate body supports the second scraper through the second spring, ensuring that the second scraper can contact the inner wall of the box, thereby enabling the second scraper to scrape off the grain adhering to the inner wall of the box and further improve the grain unloading rate.

[0022] 8. By installing the moving mechanism on both sides of the top opening of the box, one end of the folding cover assembly is rotatably connected to one side of the box opening, and both sides of the other end of the folding cover assembly are simultaneously connected to the moving mechanism. This allows the moving mechanism to drive the other end of the folding cover assembly to move, enabling the folding cover assembly to fold or unfold. This allows the folding cover assembly to close or open the top opening of the box, thereby protecting the grain stored inside. By connecting multiple second guide frames to both sides of the folding cover assembly, installing multiple second guide wheels inside the second guide frames, and simultaneously embedding guide rods into the guide grooves of the multiple second guide wheels, the second guide frames support the multiple second guide wheels. This allows the multiple second guide wheels and the second guide frames to move along the guide rods, thereby guiding the folding cover assembly when it is folded or unfolded, thus improving the stability of the folding cover assembly during folding or unfolding.

[0023] 9. By fitting the chain around the outside of the first and second sprockets located on one side and connecting the chain to the other end of the folding cover assembly, the first and second sprockets cooperate to support the chain and drive the chain to move, thereby enabling the chain to drive the folding cover assembly to move, so as to control the folding cover assembly to fold or unfold.

[0024] 10. By installing the nut at the end of the mounting bracket, the adjusting bolt passes through the nut and the mounting bracket in sequence, and connects the adjusting bolt to the support bracket to achieve a threaded connection between the adjusting bolt and the nut. Tightening the adjusting bolt causes the support bracket to move, adjusting the distance between the first and second sprockets. This ensures the chain is taut, improving the stability of the chain driving the folding cover assembly. Attached Figure Description

[0025] Figure 1 This is one of the perspective views of a grain tracked self-unloading device according to the present invention; Figure 2 for Figure 1 Enlarged view of a portion at point A; Figure 3 for Figure 1 A magnified view of section B; Figure 4 for Figure 1 A magnified view of a portion at point C; Figure 5 This is a second perspective view of a grain tracked self-unloading device according to the present invention; Figure 6 This is a perspective view of the pusher plate assembly and the winding drum assembly of the present invention; Figure 7 for Figure 6 A magnified view of a portion at point D; Figure 8 This is a third perspective view of a grain tracked self-unloading device according to the present invention; Figure 9 for Figure 7 A magnified view of a portion at point E; Figure 10 This is a cross-sectional view of the roller assembly of the present invention; in, Figures 1 to 10 The correspondence between the reference numerals and component names in the attached drawings is as follows: 10. Housing, 11. Discharge port, 12. Roller assembly, 121. Roller support, 122. First hydraulic motor, 123. Roller body, 124. Connecting flange, 125. Connecting hole, 13. Conveyor belt, 14. Pusher plate assembly, 141. Pusher plate body, 142. First scraper, 143. Second scraper, 15. Drum assembly, 151. First mounting base, 152. Drum body, 153. Second hydraulic motor, 154. First guide frame, 155. First guide wheel, 156. Connecting pin, 157. Limiting plate, 158. Mounting plate, 159. Limiting rod, 160. Limiting plate, 1 61 First spring, 17 Scraper assembly, 18 Door assembly, 181 Door body, 182 Flip plate, 183 Hydraulic cylinder, 184 First locking block, 185 Second locking block, 186 Contact seat, 187 Contact switch, 19 Moving mechanism, 191 Synchronous shaft, 192 Adjusting mechanism, 1921 Mounting bracket, 1922 Adjusting groove, 1923 Support bracket, 1924 Connecting shaft, 1925 Nut, 1926 Adjusting bolt, 193 Second sprocket, 20 Folding cover assembly, 21 Guide rod, 22 Second guide frame, 23 Second guide wheel, 24 Connecting rod. Detailed Implementation

[0026] The following are specific implementation cases and appendices. Figures 1 to 10 The present invention will be further described, but the present invention is not limited to these embodiments.

[0027] A grain tracked self-unloading device, such as Figures 1 to 10As shown, the grain tracked self-unloading device includes: a box body 10, a discharge port 11, a roller assembly 12, a conveyor belt 13, a pusher plate assembly 14, a winding drum assembly 15, a scraper assembly 17, and a box door assembly 18; the box body 10 is a hollow cavity with an opening at the top; the discharge port 11 is located at the end of the box body 10; the roller assembly 12 is rotatably connected to the bottom of the box body 10 near the discharge port 11; the conveyor belt 13 is placed at the bottom of the box body 10, one end of the conveyor belt 13 is connected to the roller assembly 12, and the conveyor belt 13 is wound around the roller. The outer side of component 12; push plate assembly 14 is located inside the housing 10, and the bottom of push plate assembly 14 is connected to the other end of conveyor belt 13; winding drum assembly 15 is installed inside the housing 10, the winding drum assembly 15 is located on the side of push plate assembly 14 away from discharge port 11, and the winding drum assembly 15 is connected to push plate assembly 14; scraper assembly 17 is installed at the bottom of housing 10, the scraper assembly 17 is located below roller assembly 12, and the scraper assembly 17 is in contact with conveyor belt 13; housing door assembly 18 is installed at discharge port 11.

[0028] By setting the box 10 as a hollow cavity with an opening at the top and setting the discharge port 11 at the end of the box 10, the box 10 has an internal space for storing and transporting grain, so that the grain stored in the box 10 can be discharged through the discharge port 11; by rotating the roller assembly 12 to the bottom of the box 10 near the discharge port 11, placing the conveyor belt 13 at the bottom of the box 10, connecting one end of the conveyor belt 13 to the roller assembly 12, and wrapping the conveyor belt 13 around the outside of the roller assembly 12, the box 10 supports the roller assembly 12, so that when the roller assembly 12 rotates, the roller assembly 12 uses friction to wrap the conveyor belt 13 around the outside of the roller assembly 12, thereby enabling the roller assembly 12 to drive the conveyor belt 13 to move inside the box 10. By placing the pusher assembly 14 inside the housing 10 and connecting its bottom to the conveyor belt 13, the conveyor belt 13 can drive the pusher assembly 14 towards the discharge port 11 when it is wound around the outside of the roller assembly 12. This allows the pusher assembly 14 to push the grain stored in the housing 10 towards the discharge port 11 and discharge the grain through the discharge port 11, thus completing the unloading of the grain. By installing the winding drum assembly 15 inside the housing 10 and connecting it to the pusher assembly 14, the winding drum assembly 15 can move the pusher assembly 14 in conjunction with the roller assembly 12 by winding or unwinding the wire, thereby adjusting the position of the pusher assembly 14. By installing the scraper assembly 17 at the bottom of the housing 10 and making the scraper assembly 17 fit against the conveyor belt 13, the scraper assembly 17 can scrape off the grain remaining on the conveyor belt 13 when the conveyor belt 13 is wrapped around the outside of the roller assembly 12. This not only prevents the residual grain from being mixed into the grain stored next time, but also avoids grain waste, thereby improving the user experience of the product. By installing the door assembly 18 at the discharge port 11, the door assembly 18 can close the discharge port 11, thereby preventing the grain from flowing out through the discharge port 11 when the housing 10 stores and transports grain.

[0029] In actual use of the product, first, fasten the door assembly 18 to the discharge port 11, and position the pusher assembly 14 inside the end of the box 10 away from the discharge port 11; then, pour the grain into the box 10 through the opening at the top of the box 10; next, move the box 10 to the predetermined position; then, open the door assembly 18 and start the roller assembly 12, causing the rotating roller assembly 12 to wrap around the outside of the conveyor belt 13, thereby causing the conveyor belt 13 to drive the pusher assembly 14 towards the discharge port 11, and then... The pusher assembly 14 pushes the grain to move and allows it to flow out through the discharge port 11 to complete the unloading of the grain. At the same time, the winding drum assembly 15 is activated to unwind the wire to avoid interference between the winding drum assembly 15 and the pusher assembly 14. After the grain is unloaded, the winding drum assembly 15 is activated to wind up the wire, thereby causing the winding drum assembly 15 to drive the pusher assembly 14 to move away from the discharge port 11. At the same time, the roller assembly 12 is activated to unwind the wire.

[0030] With the above structure, by having the conveyor belt 13 wrapped around the outside of the roller assembly 12, connecting the bottom of the pusher assembly 14 to the other end of the conveyor belt 13, and connecting the winding drum assembly 15 to the pusher assembly 14, when the roller assembly 12 rotates and the winding drum assembly 15 takes in or releases the wire, the roller assembly 12 and the winding drum assembly 15 cooperate to drive the pusher assembly 14 to move, thereby enabling the pusher assembly 14 to push the grain to move and complete the unloading of the grain. The unloading of the grain by tilting the box 10 relative to the lifting box 10 can avoid the situation of overturning due to the soft soil of the unloading site, thereby improving the safety and applicability of the product. Since there is no need to lift the container 10, there are no restrictions on the height of the unloading site, further improving the applicability of the product. Moreover, by using the push plate assembly 14 to move the grain, the unloading rate can be increased compared to unloading by tilting, avoiding grain residue in the container 10 and improving unloading efficiency. At the same time, the container 10 can be moved while unloading, so as to achieve quantitative and batch unloading, further improving the user experience of the product.

[0031] In embodiments of the present invention, such as Figures 1 to 10As shown, the roller assembly 12 includes: a roller support 121, a first hydraulic motor 122, a roller body 123, a connecting flange 124, and connecting holes 125; two roller supports 121 are installed at the bottom of the housing 10, and there is a gap between the two roller supports 121; the first hydraulic motor 122 is installed on one roller support 121; the roller body 123 is a hollow cavity with openings at both ends, one end of the roller body 123 is rotatably connected to the other roller support 121, and the other end of the roller body 123 is wrapped around the outside of the output end of the first hydraulic motor 122; the connecting flange 124 is installed inside the other end of the roller body 123, and the connecting flange 124 is connected to the output end of the first hydraulic motor 122; multiple connecting holes 125 are provided on the outer wall of the roller body 123.

[0032] By installing two roller supports 121 at the bottom of the housing 10 and mounting the first hydraulic motor 122 on one of the roller supports 121, the roller supports 121 support the first hydraulic motor 122, thereby improving the stability of the first hydraulic motor 122; by installing the connecting flange 124 inside the other end of the roller body 123, the roller body 123 supports the connecting flange 124, thereby enabling the roller body 123 and the connecting flange 124 to rotate synchronously. By rotatably connecting one end of the roller body 123 to another roller support 121 and connecting the connecting flange 124 to the output end of the first hydraulic motor 122, the roller body 123 and the first hydraulic motor 122 cooperate to support the roller body 123, thereby enabling the first hydraulic motor 122 to drive the roller body 123 to rotate. By setting multiple connecting holes 125 on the outer wall of the roller body 123, the roller body 123 can be connected to the conveyor belt 13 through the multiple connecting holes 125, thereby improving the firmness of the connection between the roller body 123 and the conveyor belt 13, and ensuring that the roller body 123 wraps the conveyor belt 13 around its outside, thereby improving the user experience of the product.

[0033] In embodiments of the present invention, such as Figures 1 to 10As shown, the cable reel assembly 15 includes: a first mounting base 151, a cable reel body 152, a second hydraulic motor 153, a first guide frame 154, a first guide wheel 155, a connecting pin 156, and a wire rope; the first mounting base 151 is provided with a mounting groove, the first mounting base 151 is installed at the bottom of the housing 10, and the first mounting base 151 is located on the side of the push plate assembly 14 opposite to the discharge port 11; the cable reel body 152 is located in the mounting groove, and the cable reel body 152 is rotatably connected to the first mounting base 151; the second hydraulic motor 153 is installed on the first mounting base 151, and the second hydraulic motor 153... The first guide frame 154 is connected to the main body 152 of the winding drum; a first receiving groove is provided in the first guide frame 154, and the first guide frame 154 is connected to the push plate assembly 14; a first guide wheel 155 is located in the first receiving groove, and the first guide wheel 155 is rotatably connected to the first guide frame 154; a connecting pin 156 is connected to the push plate assembly 14, and the connecting pin 156 is located above the first guide wheel 155; one end of the wire rope is connected to the main body 152 of the winding drum, and the other end of the wire rope is connected to the connecting pin 156. The wire rope is wound around the outside of the main body 152 of the winding drum and around the outside of the first guide wheel 155.

[0034] By installing the first mounting base 151 at the bottom of the housing 10, the cable reel body 152 is positioned in the mounting groove of the first mounting base 151, and the cable reel body 152 is rotatably connected to the first mounting base 151, so that the first mounting base 151 supports the cable reel body 152, thereby enabling the cable reel body 152 to rotate within the mounting groove; by installing the second hydraulic motor 153 on the first mounting base 151 and connecting the second hydraulic motor 153 to the cable reel body 152, the first mounting base 151 supports the second hydraulic motor 153, thereby enabling the second hydraulic motor 153 to drive the cable reel body 152 to rotate. By connecting the first guide frame 154 to the push plate assembly 14, the first guide wheel 155 is positioned within the first receiving groove of the first guide frame 154, and the first guide wheel 155 is rotatably connected to the first guide frame 154, thereby enabling the first guide frame 154 to support the first guide wheel 155 and allowing the first guide wheel 155 to rotate within the first receiving groove; by connecting the connecting pin 156 to the push plate assembly 14, and positioning the connecting pin 156 above the first guide wheel 155, the push plate assembly 14 supports the connecting pin 156; by connecting the wire rope... One end of the wire rope is connected to the drum body 152, and the other end of the wire rope is connected to the connecting pin 156. The wire rope is wound around the outside of both the drum body 152 and the first guide wheel 155. This allows the wire rope to connect the drum body 152 and the push plate assembly 14 together. When the drum body 152 rotates, it can take in or release the wire rope, thereby moving the push plate assembly 14. This allows the first guide wheel 155 to support the wire rope, ensuring that the wire rope is taut and preventing damage from winding.

[0035] In embodiments of the present invention, such as Figures 1 to 10 As shown, the cable reel assembly 15 also includes: a limiting disc 157, a mounting plate 158, a limiting rod 159, a limiting plate 160, and a first spring 161; a limiting groove is provided on the outer side of the limiting disc 157, the limiting disc 157 is fitted onto the outer side of the connecting pin 156, the wire rope is embedded in the limiting groove, and the wire rope is connected to the limiting disc 157; the mounting plate 158 is connected to the side of the push plate assembly 14 near the cable reel body 152, and the mounting plate 158... Located above the connecting pin 156; the limiting rod 159 passes through the mounting plate 158 and is located above the limiting disc 157; the limiting plate 160 is fitted on the outside of the limiting rod 159 and is located above the mounting plate 158; the first spring 161 is fitted on the outside of the limiting rod 159, one end of the first spring 161 is connected to the mounting plate 158, and the other end of the first spring 161 is connected to the limiting plate 160.

[0036] By fitting the limiting plate 157 onto the outside of the connecting pin 156, embedding the wire rope into the limiting groove of the limiting plate 157, and connecting the wire rope to the limiting plate 157, the connecting pin 156 is connected to the wire rope through the limiting plate 157. This utilizes the limiting groove of the limiting plate 157 to limit the wire rope and prevent it from shifting. By connecting the mounting plate 158 to the push plate assembly 14, the limiting rod 159 passes through the mounting plate 158, and the limiting plate 160 is fitted onto the outside of the limiting rod 159. This allows the push plate assembly 14 to support the mounting plate 158. To achieve synchronous movement of the limiting plate 160 and the limiting rod 159, the first spring 161 is fitted onto the outside of the limiting rod 159. One end of the first spring 161 is connected to the mounting plate 158, and the other end of the first spring 161 is connected to the limiting plate 160. This allows the mounting plate 158 to support the limiting plate 160 and the limiting rod 159 through the first spring 161. Consequently, the limiting rod 159 can press the wire rope tightly into the limiting groove of the limiting plate 157 to prevent the wire rope from coming out of the limiting groove and to prevent the wire rope from deviating, thereby improving the stability of the wire rope.

[0037] In embodiments of the present invention, such as Figures 1 to 10 As shown, the door assembly 18 includes: a door body 181, a flip plate 182, a hydraulic cylinder 183, a first locking block 184, and a second locking block 185; the door body 181 is fastened to the discharge port 11; the flip plate 182 is L-shaped, with one end of each flip plate 182 rotatably connected to the top of both sides of the box body 10, and the two flip plates 182 are respectively connected to the top of both sides of the box body 10; the two hydraulic cylinders 183 are respectively rotatably connected to the sides of the box body 10, and the output ends of the two hydraulic cylinders 183 are respectively rotatably connected to the middle of the two flip plates 182; the first locking block 184 is L-shaped, with both first locking blocks 184 connected to the bottom of the end of the box body 10, and the two first locking blocks 184 are located on both sides of the discharge port 11; the second locking block 185 is L-shaped, with both second locking blocks 185 connected to the bottom sides of the door body 181, and the second locking blocks 185 and the first locking blocks 184 are staggered.

[0038] By fastening the box door body 181 to the discharge port 11, one end of each of the two L-shaped flip plates 182 is rotatably connected to the top of both sides of the box body 10, and the two flip plates 182 are connected to the top of the box body 10, so that the box body 10 supports the box door body 181 through the two flip plates 182. Thus, when the two flip plates 182 rotate, they cooperate to drive the box door body 181 to rotate, thereby opening or closing the inlet. By rotatably connecting the two hydraulic cylinders 183 to the sides of the box body 10, and rotatably connecting the conveying ends of the two hydraulic cylinders 183 to the middle of the two flip plates 182, the hydraulic cylinders 183 can drive the flip plates 182 to rotate, and the hydraulic cylinders 183 rotate accordingly following the position of the flip plates 182, thereby ensuring that the flip plates 182 can drive the box door body 181 to rotate. By connecting two L-shaped first locking blocks 184 to the bottom of the end of the box body 10, and connecting two L-shaped second locking blocks 185 to the bottom sides I of the box door body 181, and staggering the second locking blocks 185 with the first locking blocks 184, when the box door body 181 rotates downward and closes the discharge port 11, the first locking blocks 184 and the second locking blocks 185 stagger each other, thereby locking the box door body 181 to prevent the box door body 181 from moving out of the discharge port 11, and thus preventing the grain from flowing out of the discharge port 11, thereby improving the efficiency of grain storage and transportation.

[0039] In embodiments of the present invention, such as Figures 1 to 10 As shown, the door assembly 18 also includes: a contact seat 186 and a contact switch 187; the two contact seats 186 are respectively connected to the two hydraulic cylinders 183; the two contact switches 187 are respectively connected to the two sides of the housing 10, and the two contact switches 187 are respectively opposite to the two contact seats 186; wherein, the two contact switches 187 are respectively electrically connected to the first hydraulic motor 122 and the second hydraulic motor 153.

[0040] By connecting two contact seats 186 to two hydraulic cylinders 183 respectively, the hydraulic cylinders 183 support the contact seats 186, thereby achieving synchronous rotation and movement of the hydraulic cylinders 183 and contact seats 186. By connecting two contact switches 187 to both sides of the housing 10, the two contact switches 187 are respectively opposite to the two contact seats 186, and the two contact switches 187 are respectively electrically connected to the first hydraulic motor 122 and the second hydraulic motor 153, thereby achieving synchronous rotation and movement of the hydraulic cylinders 183 and contact seats 186. When the contact seat 186 is moved to the predetermined position (at which time the box door body 181 is in the fully open state), the contact seat 186 contacts the contact switch 187 to release the lock on the first hydraulic motor 122 and the second hydraulic motor 153, so that the operator can start the first hydraulic motor 122 and the second hydraulic motor 153 by remote control. This avoids the situation where the push plate assembly 14 pushes the grain to move and causes the grain to impact the box door body 181 because the box door body 181 is not in the fully open state, thereby improving the safety of product use.

[0041] In embodiments of the present invention, such as Figures 1 to 10 As shown, the pusher assembly 14 further includes: a pusher plate body 141, a first scraper 142, a second scraper 143, and a second spring; the pusher plate body 141 is located inside the housing 10, connected to the conveyor belt 13, and connected to the winding drum assembly 15; the first scraper 142 is arc-shaped, connected to the pusher plate body 141, and placed on the conveyor belt 13; multiple second scrapers 143 are rotatably connected to both sides of the pusher plate body 141, and the second scrapers 143 are in contact with the inner wall of the housing 10; one end of the second spring is connected to the pusher plate body 141, and the other end of the second spring is connected to the second scraper 143; wherein, the second scraper 143 is an elastic body.

[0042] By connecting the pusher plate body 141 to the conveyor belt 13 and the pusher plate body 141 to the winding drum assembly 15, the conveyor belt 13 and the winding drum assembly 15 cooperate to drive the pusher plate body 141 to move, thereby enabling the pusher plate body 141 to push the grain. By connecting the arc-shaped first scraper 142 to the pusher plate body 141 and placing the first scraper 142 on the conveyor belt 13, the pusher plate body 141 can drive the first scraper 142 to move, thereby enabling the first scraper 142 to remove residues on the conveyor belt. The grain on the 13 is scraped off to improve the grain unloading rate. Multiple second scrapers 143 are rotatably connected to both sides of the pusher plate body 141. One end of the second spring is connected to the pusher plate body 141, and the other end is connected to the second scraper 143. This allows the pusher plate body 141 to support the second scrapers 143 via the second springs, ensuring that the second scrapers 143 can contact the inner wall of the box 10. This allows the second scrapers 143 to scrape off the grain adhering to the inner wall of the box 10, further improving the grain unloading rate. By setting the second scrapers 143 as elastic bodies, rigid contact between the second scrapers 143 and the box 10 is avoided, preventing damage to both and improving the user experience.

[0043] Specifically, the second scraper 143 is made of polyurethane.

[0044] In embodiments of the present invention, such as Figures 1 to 10 As shown, the grain tracked self-unloading device also includes: a moving mechanism 19, a folding cover assembly 20, guide rods 21, second guide frames 22, second guide wheels 23, and connecting rods 24; the moving mechanism 19 is installed on both sides of the top opening of the box 10; one end of the folding cover assembly 20 is rotatably connected to one side of the opening of the box 10, and both sides of the other end of the folding cover assembly 20 are simultaneously connected to the moving mechanism 19; two guide rods 21 are respectively installed on both sides of the box 10; multiple second guide frames 22 are respectively connected to both sides of the folding cover assembly 20, and multiple second guide frames 22 are respectively wound around the two guide rods 21; the outer wall of the second guide wheel 23 is provided with a guide groove, at least two second guide wheels 23 are installed in the second guide frame 22, and the guide rods 21 are simultaneously embedded in the guide grooves of at least two second guide wheels 23; the connecting rod 24 is U-shaped, and both ends of the connecting rod 24 are respectively connected to the second guide frames 22 located on both sides of the box 10.

[0045] By installing the moving mechanism 19 on both sides of the top opening of the box 10, one end of the folding cover assembly 20 is rotatably connected to one side of the opening of the box 10, and both sides of the other end of the folding cover assembly 20 are simultaneously connected to the moving mechanism 19. This allows the moving mechanism 19 to drive the other end of the folding cover assembly 20 to move, thereby enabling the folding cover assembly 20 to fold or unfold. This allows the folding cover assembly 20 to close or open the top opening of the box 10, thus protecting the grain stored inside the box 10. By installing two guide rods 21 on both sides of the box 10, the box 10 can be folded or unfolded. The 0 supports two guide rods 21; by connecting multiple second guide frames 22 to both sides of the folding cover assembly 20 respectively, multiple second guide wheels 23 are installed in the second guide frames 22, and the guide rods 21 are simultaneously embedded in the guide grooves of the multiple second guide wheels 23, so that the second guide frames 22 support the multiple second guide wheels 23, thereby enabling the multiple second guide wheels 23 and the second guide frames 22 to move along the guide rods 21, thus guiding the folding cover assembly 20 when folding or unfolding, thereby improving the stability of the folding cover assembly 20 when folding or unfolding. By connecting the two ends of the U-shaped connecting rod 24 to the second guide frames 22 located on both sides of the box body 10 respectively, the second guide frames 22 located on both sides of the box body 10 can move synchronously, thereby preventing the folding cover assembly 20 from shifting when folding or unfolding, thereby further improving the stability of the folding cover assembly 20 when folding or unfolding.

[0046] Specifically, the folding cover assembly 20 includes multiple cover bodies, which are connected end to end in sequence. Multiple second guide frames 22 are respectively connected to one end of the multiple cover bodies to realize the folding or unfolding of two adjacent cover bodies.

[0047] In embodiments of the present invention, such as Figures 1 to 10 As shown, the moving mechanism 19 includes: a synchronous shaft 191, a first sprocket, an adjusting mechanism 192, a second sprocket 193, and a chain; the synchronous shaft 191 passes through the end of the housing 10 opposite to the discharge port 11, and the synchronous shaft 191 is rotatably connected to the housing 10; two first sprockets are respectively fitted on both ends of the synchronous shaft 191, and the two first sprockets are located on both sides of the housing 10; two adjusting mechanisms 192 are installed on both sides of the housing 10 near the discharge port 11; two second sprockets 193 are respectively rotatably connected to the two adjusting mechanisms 192; the chain is fitted on the outside of the first sprocket and the second sprocket 193 located on one side, and the chain is connected to the other end of the folding cover assembly 20.

[0048] By passing the synchronous shaft 191 through the end of the housing 10 away from the discharge port 11 and rotatably connecting the synchronous shaft 191 to the housing 10, the housing 10 supports the synchronous shaft 191, allowing the synchronous shaft 191 to rotate within the housing 10. By mounting two first sprockets on both ends of the synchronous shaft 191 and positioning them on either side of the housing 10, the synchronous shaft 191 can drive the two first sprockets to rotate. By installing two adjusting mechanisms 192 on either side of the housing 10 near the discharge port 11, the two second sprockets... 193 is rotatably connected to two adjustment mechanisms 192, so that the adjustment mechanism 192 can drive the second sprocket 193 to move, thereby adjusting the distance between the first sprocket and the second sprocket 193; by fitting the chain on the outside of the first sprocket and the second sprocket 193 located on one side, and connecting the chain to the other end of the folding cover assembly 20, the first sprocket and the second sprocket 193 cooperate to support the chain and drive the chain to move, thereby enabling the chain to drive the folding cover assembly 20 to move, so as to control the folding cover assembly 20 to fold or unfold.

[0049] In embodiments of the present invention, such as Figures 1 to 10 As shown, the adjustment mechanism 192 includes: a mounting bracket 1921, an adjustment groove 1922, a support bracket 1923, a connecting shaft 1924, a nut 1925, and an adjustment bolt 1926; the mounting bracket 1921 has a second receiving groove inside, and the mounting bracket 1921 is mounted on the side wall of the housing 10; the adjustment groove 1922 is elongated, and two adjustment grooves 1922 are arranged on both sides of the mounting bracket 1921; the support bracket 1923 is U-shaped and is located in the second receiving groove; the connecting shaft... The connecting shaft 1924 passes through two adjusting slots 1922 and the support frame 1923 in sequence, and the second sprocket 193 is fitted on the outside of the connecting shaft 1924; the nut 1925 is provided with internal threads and is installed at the end of the mounting bracket 1921; the adjusting bolt 1926 is provided with external threads on its outer wall, and the adjusting bolt 1926 passes through the nut 1925 and the mounting bracket 1921 in sequence, and is connected to the support frame 1923; wherein, the internal threads and the external threads are compatible.

[0050] By mounting the mounting bracket 1921 on the side wall of the housing 10, and placing the U-shaped support bracket 1923 in the second receiving groove of the mounting bracket 1921, the housing 10 supports the mounting bracket 1921, thereby enabling the support bracket 1923 to move within the second receiving groove. By setting two elongated adjustment grooves 1922 on both sides of the mounting bracket 1921, the connecting shaft 1924 passes through the two adjustment grooves 1922 and the support bracket 1923 in sequence, and the second sprocket 193 is fitted onto the connecting shaft 1924, so that the support bracket 1923 can drive the connecting shaft 1924 to move within the adjustment grooves 1922. Thus, the mounting bracket 1921 supports the connecting shaft 1924 and the support bracket 1923 through the adjustment grooves 1922, and the connecting shaft 1924 supports the second sprocket 193. By installing the nut 1925 at the end of the mounting bracket 1921, the adjusting bolt 1926 passes through the nut 1925 and the mounting bracket 1921 in sequence, and connects the adjusting bolt 1926 to the support bracket 1923, thus achieving a threaded connection between the adjusting bolt 1926 and the nut 1925. Tightening the adjusting bolt 1926 causes it to move the support bracket 1923, adjusting the distance between the first sprocket and the second sprocket 193. This ensures the chain is taut, improving the stability of the chain driving the folding cover assembly 20. In the description of this invention, the term "a plurality of" refers to two or more. Unless otherwise explicitly defined, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. The terms "connection," "installation," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0051] In the description of this invention, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this invention, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A grain tracked self-unloading device, characterized in that, The grain tracked self-unloading device includes: The box body is a hollow cavity with an opening at the top; A discharge port is located at the end of the housing; A roller assembly, wherein the roller assembly is rotatably connected to the bottom of the housing near the discharge port; A conveyor belt is placed at the bottom of the housing, one end of the conveyor belt is connected to the roller assembly, and the conveyor belt is wrapped around the outside of the roller assembly; A pusher assembly, the pusher assembly being located inside the housing, and the bottom of the pusher assembly being connected to the other end of the conveyor belt; A winding drum assembly is installed inside the housing, located on the side of the push plate assembly opposite to the discharge port, and connected to the push plate assembly. A scraper assembly is installed at the bottom of the housing, located below the roller assembly, and in contact with the conveyor belt; A door assembly is installed at the discharge port.

2. The grain tracked self-unloading device according to claim 1, characterized in that, The roller assembly includes: Roller supports, two roller supports are installed at the bottom of the housing, and there is a gap between the two roller supports; A first hydraulic motor is mounted on one of the roller supports; The roller body is a hollow cavity with openings at both ends. One end of the roller body is rotatably connected to another roller support, and the other end of the roller body is wrapped around the outside of the output end of the first hydraulic motor. A connecting flange is installed inside the other end of the roller body and is connected to the output end of the first hydraulic motor. Connection holes, a plurality of the connection holes are provided on the outer wall of the roller body.

3. A grain tracked self-unloading device according to claim 2, characterized in that, The winding drum assembly includes: The first mounting base has a mounting groove inside. The first mounting base is installed at the bottom of the box body and is located on the side of the push plate assembly away from the discharge port. A cable reel body, wherein the cable reel body is located in the mounting groove and is rotatably connected to the first mounting base; A second hydraulic motor is mounted on the first mounting base and is connected to the winding drum body; A first guide frame, wherein a first receiving groove is provided inside the first guide frame, and the first guide frame is connected to the push plate assembly; The first guide wheel is located in the first receiving groove and is rotatably connected to the first guide frame; A connecting pin is provided, which is connected to the push plate assembly and is located above the first guide wheel; A wire rope, one end of which is connected to the drum body and the other end of which is connected to the connecting pin, is wound around the outside of the drum body and around the outside of the first guide wheel.

4. A grain tracked self-unloading device according to claim 3, characterized in that, The winding drum assembly also includes: A limiting plate is provided on the outer side of the limiting plate. The limiting plate is fitted onto the outer side of the connecting pin. The wire rope is embedded in the limiting groove and is connected to the limiting plate. Mounting plate, the mounting plate is connected to the push plate assembly on the side near the winding drum body, and the mounting plate is located above the connecting pin shaft; A limiting rod passes through the mounting plate and is located above the limiting disc; A limiting plate, which is fitted onto the outside of the limiting rod and is located above the mounting plate; A first spring is fitted onto the outside of the limiting rod, with one end of the first spring connected to the mounting plate and the other end of the first spring connected to the limiting plate.

5. A grain tracked self-unloading device according to claim 4, characterized in that, The door assembly includes: The box door body is fastened to the discharge port; The flip-up plate is L-shaped, with one end of each of the two flip-up plates rotatably connected to the top of the two sides of the box body, and the two flip-up plates are respectively connected to the two sides of the top of the box body. Two hydraulic cylinders are rotatably connected to both sides of the housing, and the output ends of the two hydraulic cylinders are rotatably connected to the middle of the two tilting plates. The first locking block is L-shaped, and the two first locking blocks are connected to the bottom of the end of the box body, and the two first locking blocks are located on both sides of the discharge port; The second locking block is L-shaped, and the two second locking blocks are connected to the bottom sides of the box door body, and the second locking blocks are staggered with the first locking block.

6. A grain tracked self-unloading device according to claim 5, characterized in that, The door assembly also includes: Contact seats, the two contact seats are respectively connected to the two hydraulic cylinders; The two contact switches are respectively connected to the two sides of the housing, and the two contact switches are respectively opposite to the two contact seats; The two contact switches are electrically connected to the first hydraulic motor and the second hydraulic motor, respectively.

7. A grain tracked self-unloading device according to claim 1, characterized in that, The pusher assembly also includes: The pusher plate body is located inside the box, the pusher plate body is connected to the conveyor belt, and the pusher plate body is connected to the winding drum assembly; The first scraper is arc-shaped and connected to the pusher plate body, and is placed on the conveyor belt; The second scraper, and multiple second scrapers are rotatably connected to both sides of the pusher plate body, and the second scrapers are in contact with the inner wall of the box; The second spring has one end connected to the pusher plate body and the other end connected to the second scraper. The second scraper is an elastomer.

8. A grain tracked self-unloading device according to claim 1, characterized in that, The grain tracked self-unloading device also includes: A moving mechanism, which is installed on both sides of the opening at the top of the housing; A folding cover assembly, one end of which is rotatably connected to one side of the box opening, and both sides of the other end of which are simultaneously connected to the moving mechanism. Guide rods, two of which are respectively installed on both sides of the housing; The second guide frame, and a plurality of the second guide frames are respectively connected to both sides of the folding cover assembly, and the plurality of the second guide frames are respectively connected around the two guide rods; The second guide wheel has a guide groove on its outer wall. At least two second guide wheels are installed in the second guide frame, and the guide rod is simultaneously embedded in the guide grooves of at least two second guide wheels. The connecting rod is U-shaped, and its two ends are respectively connected to the second guide frame located on both sides of the box body.

9. A grain tracked self-unloading device according to claim 8, characterized in that, The moving mechanism includes: A synchronous shaft passes through one end of the housing opposite to the discharge port, and the synchronous shaft is rotatably connected to the housing; The first sprocket, two first sprockets are respectively mounted on both ends of the synchronous shaft, and the two first sprockets are located on both sides of the housing; Adjustment mechanisms, two of which are installed on both sides of the housing near the discharge port; The second sprocket, and the two second sprockets are respectively rotatably connected to the two adjustment mechanisms; A chain, which is fitted around the outside of the first and second sprockets located on one side, and is connected to the other end of the folding cover assembly.

10. A grain tracked self-unloading device according to claim 9, characterized in that, The adjustment mechanism includes: Mounting bracket, wherein a second receiving slot is provided inside the mounting bracket, and the mounting bracket is mounted on the side wall of the housing; The adjustment groove is elongated and two adjustment grooves are arranged on both sides of the mounting frame; A support frame, the support frame being U-shaped, is located within the second receiving groove; A connecting shaft passes sequentially through the two adjusting slots and the support frame, and the second sprocket is fitted onto the outside of the connecting shaft; A nut having an internal thread is mounted on the end of the mounting bracket; An adjusting bolt is provided with an external thread on its outer wall. The adjusting bolt passes through the nut and the mounting bracket in sequence, and is connected to the support bracket. The internal thread is adapted to the external thread.

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