Bulk grain transfer device

Abstract

The present application relates to a bulk grain transfer device, and relates to the technical field of bulk grain transfer, which includes a transfer pipeline, a chute scale and a dust cleaning mechanism, the transfer pipeline is connected to the inlet of the chute scale, and the dust cleaning mechanism includes a filter box, a filter assembly, an air extraction assembly and an air blowing assembly; the filter assembly includes a filter net; the air extraction assembly includes a first air extraction pipe and a second air extraction pipe; the air blowing assembly includes a first air blowing pipe and a second air blowing pipe; the filter net is arranged in the filter box; the first air extraction pipe and the second air extraction pipe are both provided with an air pump, the first air extraction pipe connects the transfer pipeline and the filter box, the second air extraction pipe connects the chute scale and the filter box, the position where the first air extraction pipe connects the filter box and the position where the second air extraction pipe connects the filter box are respectively located on both sides of the filter net, and the second air extraction pipe faces the filter net; the first air blowing pipe connects the transfer pipeline and the filter box, and the second air blowing pipe connects the chute scale and the filter box. The present application has the effect of enabling the bulk grain transfer device to clean dust in real time.

Description

Technical Field

[0001] This application relates to the technical field of bulk grain transfer, and in particular to a bulk grain transfer device. Background Art

[0002] To prevent bulk grain from caking inside the silos, it is necessary to transfer the bulk grain to different silos periodically. The transfer of bulk grain between silos is achieved through a bulk grain transfer device.

[0003] Existing bulk grain transfer devices include transfer pipelines and metering devices. The transfer pipelines are connected to the metering devices and one silo, and the metering devices are connected to another silo. Bulk grain flows from one silo into another silo through the transfer pipelines and the metering devices. The metering devices measure the weight of the bulk grain to facilitate storage management. The metering devices can be a closed chute scale with a flip-top structure disclosed in Chinese Patent No. CN217980488U.

[0004] Bulk grains often contain a large amount of dust. During the bulk grain transfer process, dust easily accumulates in the transfer pipes and chute scales, requiring regular manual cleaning. Although manual cleaning can reduce the impact of dust on the chute scale's measurement, the accumulated dust can still affect the scale's readings, thus hindering the long-term stable operation of the bulk grain transfer device. Summary of the Invention

[0005] In order to enable the bulk grain transfer device to clean dust in real time and improve its long-term operational stability, this application provides a bulk grain transfer device.

[0006] This application provides a bulk grain transfer device, which adopts the following technical solution:

[0007] A bulk grain transfer device includes a transfer pipe, a chute scale, and a dust removal mechanism. The transfer pipe is connected to the inlet of the chute scale and is inclined along the inclination direction of the inlet of the chute scale. The dust removal mechanism includes a filter box, a filter assembly, an air extraction assembly, and an air blowing assembly.

[0008] The filter assembly includes a filter screen; the air extraction assembly includes a first air extraction pipe and a second air extraction pipe; the air blowing assembly includes a first air blowing pipe and a second air blowing pipe.

[0009] The filter screen is installed inside the filter box;

[0010] Air pumps are installed on both the first and second air extraction pipes. One end of the first air extraction pipe is connected to the transfer pipe and the other end is connected to the filter box. One end of the second air extraction pipe is connected to the slide scale. The positions where the first and second air extraction pipes connect to the filter box are located on both sides of the filter screen, and the second air extraction pipe faces the filter screen.

[0011] One end of the first air blowing pipe and one end of the second air blowing pipe are both connected to the filter box, and the connection positions are both located on the side of the filter screen near the second air extraction pipe. The other end of the first air blowing pipe is connected to the transfer pipe, and the other end of the second air blowing pipe is connected to the slide scale.

[0012] By adopting the above technical solution, the air pump is started during the bulk grain transfer process. The air pump draws the dust-containing air in the transfer pipeline into the filter box through the first air extraction pipe, and draws the dust-containing air in the chute scale into the filter box through the second air extraction pipe. This allows the dust in the transfer pipeline and chute scale to be cleaned in real time and prevents it from accumulating in the transfer pipeline and chute scale.

[0013] Because the dust from the bulk grain is first drawn in at the transfer pipe, the air drawn in by the second suction pipe is cleaner than that drawn in by the first suction pipe. The side of the filter screen closest to the first suction pipe can filter the dust drawn into the filter box by the first suction pipe. The relatively clean air drawn in by the second suction pipe can blow onto the filter screen, and the relatively clean air can sweep away the dust drawn in by the first suction pipe that was filtered by the filter screen. At the same time, the filter screen can also filter the small amount of dust contained in the air drawn in by the second suction pipe. Thus, the filter screen can filter the air drawn in by the first and second suction pipes through double-sided filtration, and can automatically clean itself, making it easy for the filter screen to filter dust stably for a long time.

[0014] The first air blowing pipe blows filtered air back into the transfer pipe, and the second air blowing pipe blows filtered air back into the chute scale to replenish the air missing in the transfer pipe and the chute scale, so that the measurement is not easily affected by changes in air pressure in the transfer pipe and the chute scale.

[0015] By performing real-time air extraction, filtration, filter cleaning, and air blowing during the bulk grain transfer process, the bulk grain transfer device can clean dust in real time, making it easier for the bulk grain transfer device to operate stably for a long time and more conducive to the long-term use of bulk grain transfer.

[0016] Optionally, the filter assembly further includes a filter cloth, which is fixed inside the filter box and located on the side of the second exhaust pipe away from the filter screen.

[0017] By adopting the above technical solution, the filter cloth further filters the air filtered by the filter screen. Since the filtration accuracy of the filter cloth is higher than that of the filter screen, a two-stage filtration and dust removal is formed, which improves the dust filtration effect.

[0018] Optionally, the end of the filter screen near the second suction pipe is hinged to the filter box via a hinge shaft. The filter screen is inclined in the direction away from the hinge shaft and towards the filter cloth. The filter screen is connected to a vibrating part, which includes a vibrating groove, a magnetic block, a baffle and an electromagnet.

[0019] The vibrating chute is an arc-shaped groove and is connected to the filter box. The vibrating chute is located at the end of the filter screen away from the hinge axis, and the end of the filter screen away from the hinge axis is slidably set in the vibrating chute.

[0020] The magnetic block is fixed at the end of the filter screen away from the hinge axis;

[0021] The baffle is fixed on the side of the vibrating chute closest to the filter cloth;

[0022] The electromagnet is fixed on the side of the vibrating chute away from the filter cloth. The electromagnet is electrically connected to a button, which is fixedly installed on the vibrating chute and located within the sliding range of the filter screen. The button is positioned close to the electromagnet.

[0023] When the button is pressed, the electromagnet is energized; when the button is released, the electromagnet is de-energized. When the electromagnet and the magnetic block are close to each other, they have the same polarity.

[0024] By adopting the above technical solution, the airflow from the second suction pipe blows onto the filter screen and pushes the filter screen to swing, so that the end of the filter screen can slide along the vibration groove. When the end of the filter screen slides past the button, the electromagnet is energized. The energized electromagnet applies a magnetic thrust to the magnetic block. The magnetic thrust can drive the end of the filter screen to hit the baffle. The impact force between the filter screen and the baffle causes the filter screen to vibrate, thereby improving the automatic cleaning effect of the filter screen.

[0025] Optionally, the filter box is provided with a striking part, which includes a rack, a striking gear, a striking rod, and a striking ball. The rack is located on the side of the baffle away from the vibration groove and is slidably connected to the filter box. The end of the rack near the baffle abuts against the baffle. The striking gear meshes with the rack and is rotatably connected to the filter box. One end of the striking rod is fixedly connected to the striking gear, and the other end is fixedly connected to the striking ball, which is used to strike the filter cloth.

[0026] By adopting the above technical solution, the end of the filter screen can generate a striking force on the baffle. The baffle can transmit the striking force to the end of the rack, causing the rack to slide away from the baffle. The rack drives the striking gear to rotate, and the striking gear drives the striking rod to swing. The striking rod drives the striking ball to strike the filter cloth, making the dust filtered by the filter cloth easy to fall off, thereby enabling the filter cloth to achieve automatic cleaning.

[0027] Optionally, the filter box is connected to a dust collection box, and the connection between the dust collection box and the filter box is located between the hinge shaft and the second exhaust pipe. The side of the dust collection box away from the second exhaust pipe is flush with the hinge shaft.

[0028] By adopting the above technical solution, the dust in the air drawn by the second suction pipe of the filter screen and the dust falling from the filter cloth can be collected in the dust collection box along the inclined surface of the filter screen, so that the dust is not easy to clog the filter screen.

[0029] Optionally, the transfer pipeline is equipped with a debris removal assembly, which includes a guide plate and a debris collection box;

[0030] The first air blowing pipe is connected to the bottom of the transfer pipe through the air blowing box. Multiple air blowing holes are opened at the bottom of the transfer pipe. All the air blowing holes are located in the projection area of ​​the air blowing box in the transfer pipe. The size of the air blowing holes is smaller than the size of a single grain.

[0031] Multiple guide plates are provided, all located inside the air blowing box. The guide plates are fixed to the transfer pipe and correspond one-to-one with the air blowing holes. The direction of the airflow blown out of the air blowing holes of the guide plates forms an acute angle with the flow direction of the bulk grain.

[0032] The collection box is fixedly installed on the top of the transfer pipe, and a collection hole is opened on the side close to the transfer pipe. The collection hole is located at the end of the collection box away from the slide scale. The airflow blown out by all the air holes forms an airflow column, which is directly opposite the collection hole.

[0033] By adopting the above technical solution, the airflow from the air blowing hole is directed towards the collection hole by the guide plate. As the bulk grain flows through the air blowing hole, the airflow can blow the impurities mixed in the bulk grain into the collection box, making it easier to clean the impurities in the bulk grain during the flow. At the same time, since the direction of the airflow from the air blowing hole is at an acute angle to the flow direction of the bulk grain, the airflow from the air blowing hole also helps to promote the flow of the bulk grain.

[0034] Optionally, the collection box has multiple material leakage holes on the side near the transfer pipe, and the size of the material leakage holes is larger than the size of a single grain.

[0035] By adopting the above technical solution, the loose grain that enters the collection box can fall back into the transfer pipe through the leakage hole when sliding along the collection box, thus making it difficult for loose grain that accidentally enters to remain in the collection box.

[0036] Optionally, the cleaning assembly further includes a debris-removing part, which is disposed inside the collection box and has two symmetrically arranged along the flow direction of the bulk grain. The debris-removing part includes a debris-removing gear, a debris-removing rod, a torsion spring, and an incomplete gear ring. The debris-removing gear is rotatably connected to the collection box. One end of the debris-removing rod is fixed to the debris-removing gear. The torsion spring is disposed between the debris-removing gear and the collection box and is used to drive the debris-removing gear to reset. The incomplete gear ring is rotatably connected to the collection box and is sleeved on the debris-removing gear and is used to mesh with the debris-removing gear.

[0037] By adopting the above technical solution, the imperfect gear ring can intermittently drive the debris-discarding gear to rotate. Under the restoring action of the torsion spring, the debris-discarding gear can reciprocate, thereby enabling the debris-discarding rod to reciprocate and push the debris into the bottom of the debris collection box.

[0038] Optionally, the end of the first suction pipe away from the filter box is connected to a suction box, the open end of the suction box is fixed to the side of the collection box away from the transfer pipe, and the side of the collection box away from the transfer pipe has multiple suction holes.

[0039] By adopting the above technical solution, the first suction pipe sucks up dust through the suction holes opened on the suction box and the collection box. On the one hand, the dust in the transfer pipe can be extracted, and on the other hand, the suction force of the dust suction helps the debris flow to the collection hole.

[0040] Optionally, the incomplete gear ring is coaxially fixed to a rotating shaft, the end of the rotating shaft away from the incomplete gear ring is inserted into the suction box, the rotating shaft is rotatably connected to the collection box, and the end of the rotating shaft located in the suction box is coaxially fixed to an impeller.

[0041] By adopting the above technical solution, the suction force generated by the first suction pipe in the suction box can drive the impeller to rotate, and the impeller can drive the incomplete gear ring to rotate through the rotating shaft, thereby making it easy for the incomplete gear ring to obtain driving force.

[0042] In summary, this application includes at least one of the following beneficial technical effects:

[0043] 1. By setting up a filter box, filter screen, first air extraction pipe, second air extraction pipe, first air blowing pipe and second air blowing pipe, the dust in the transfer pipe and chute scale is easy to clean in real time, and the dust is not easy to accumulate in the transfer pipe and chute scale, so that the dust is unlikely to affect the measurement of the chute scale, and thus the bulk grain transfer device can operate stably for a long time.

[0044] 2. By incorporating filter cloth, a vibrating section, and a striking section, the dust filtration effect is improved, and both the filter screen and filter cloth can be automatically cleaned.

[0045] 3. By setting up a flow guide plate and a collection box, the debris in the bulk grain can be cleaned up during the flow process. Attached Figure Description

[0046] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0047] Figure 2 This is a cross-sectional view of the filter component;

[0048] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0049] Figure 4 This is a structural diagram of the cleaning component;

[0050] Figure 5 yes Figure 4 Enlarged view at point B;

[0051] Figure 6 yes Figure 4 A magnified view of point C in the middle.

[0052] Explanation of reference numerals in the attached figures:

[0053] 1. Transfer pipe; 11. Air blowing port; 2. Slide scale; 3. Dust cleaning mechanism; 4. Filter box; 5. Filter assembly; 51. Filter screen; 511. Hinge shaft; 52. Filter cloth; 53. Vibrating part; 531. Vibrating chute; 532. Magnetic block; 533. Baffle; 534. Electromagnet; 535. Button; 54. Striking part; 541. Rack; 542. Striking gear; 543. Striking rod; 544. Striking ball; 55. Dust collection box; 6. Air extraction assembly; 61 611. First suction pipe; 62. Suction box; 63. Second suction pipe; 7. Air pump; 8. Air blowing assembly; 71. First air blowing pipe; 711. Air blowing box; 72. Second air blowing pipe; 8. Cleaning assembly; 81. Guide plate; 82. Collection box; 821. Collection hole; 822. Leakage hole; 823. Suction hole; 83. Impurity part; 831. Impurity gear; 832. Impurity rod; 833. Torsion spring; 834. Incomplete gear ring; 835. Rotating shaft; 836. Impeller. DETAILED DESCRIPTION

[0054] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0055] This application discloses a bulk grain transfer device. (Refer to...) Figure 1 and Figure 2 A bulk grain transfer device includes a transfer pipe 1, a chute scale 2, and a dust removal mechanism 3. The dust removal mechanism 3 includes a filter box 4, a filter assembly 5, an air extraction assembly 6, and an air blowing assembly 7. The transfer pipe 1 is connected to the chute scale 2. The filter box 4 is connected to both the transfer pipe 1 and the chute scale 2 through the air extraction assembly 6. The air extraction assembly 6 is used to draw dust from the transfer pipe 1 and the chute scale 2 into the filter box 4. The filter assembly 5 is installed inside the filter box 4 and is used to filter dust. The filter box 4 is connected to both the transfer pipe 1 and the chute scale 2 through the air blowing assembly 7. The air blowing assembly 7 is used to blow filtered air into the transfer pipe 1 and the chute scale 2.

[0056] During use, the bulk grain flows through the transfer pipe 1 and the chute scale 2. The air extraction component 6 draws the dust-laden air from the transfer pipe 1 and the chute scale 2 into the filter box 4. The filter component 5 filters the dust-laden air, and the air blowing component 7 blows the filtered air into the transfer pipe 1 and the chute scale 2 to replenish the air extracted by the air extraction component 6. This makes it easier to maintain stable air pressure in the transfer pipe 1 and the chute scale 2, making it easier to clean the dust in the bulk grain transfer device in real time. This also makes the measurement of the chute scale 2 less affected by dust accumulation, thus making it easier for the bulk grain transfer device to operate stably for a long time.

[0057] Reference Figure 1 The transfer pipe 1 is rectangular and one end of it is connected to the inlet of the chute scale 2. The transfer pipe 1 is inclined along the inlet of the chute scale 2.

[0058] Reference Figure 2 The filter box 4 is rectangular and vertically arranged. The filter assembly 5 includes a filter screen 51 and a filter cloth 52, which are arranged sequentially from bottom to top. The filter screen 51 is rectangular and inclined, and is connected to the filter box 4. The filter cloth 52 is rectangular and horizontally arranged, and is fixedly connected to the filter box 4.

[0059] Reference Figure 1 and Figure 2 The air extraction assembly 6 includes a first air extraction pipe 61 and a second air extraction pipe 62. Both the first air extraction pipe 61 and the second air extraction pipe 62 are circular tubes. One end of the first air extraction pipe 61 is connected to the transfer pipe 1, and the other end is connected to the filter box 4. The connection between the first air extraction pipe 61 and the filter box 4 is located on the side of the filter screen 51 away from the filter cloth 52.

[0060] One end of the second suction pipe 62 is connected to the slide scale 2, and the other end is connected to the filter box 4. The connection between the second suction pipe 62 and the filter box 4 is located between the filter screen 51 and the filter cloth 52, and is located within the projection area of ​​the filter screen 51 on the side wall of the filter box 4. The connection between the second suction pipe 62 and the filter box 4 faces the mesh surface of the filter screen 51. An air pump 63 is provided at the end of both the first suction pipe 61 and the second suction pipe 62 near the filter box 4.

[0061] Reference Figure 1 The air blowing assembly 7 includes a first air blowing pipe 71 and a second air blowing pipe 72. One end of the first air blowing pipe 71 is connected to the top of the filter box 4 and the other end is connected to the transfer pipe 1. One end of the second air blowing pipe 72 is connected to the top of the filter box 4 and the other end is connected to the chute scale 2.

[0062] In operation, two air pumps 63 are activated. The air pump 63 on the first suction pipe 61 draws dust-laden air from the transfer pipe 1 into the filter box 4, and the air pump 63 on the second suction pipe 62 draws dust-laden air from the chute scale 2 into the filter box 4. The dust-laden air drawn by the second suction pipe 62 is blown onto the filter screen 51 to clean it. The filter screen 51 filters the dust drawn by the first suction pipe 61 and the dust drawn by the second suction pipe 62. The air filtered by the filter screen 51 flows through the filter cloth 52, which performs secondary filtration of the dust to improve the filtration effect. Part of the filtered air is blown into the transfer pipe 1 through the first blowing pipe 71, and the other part is blown into the chute scale 2 through the second blowing pipe 72 to balance the air pressure in the transfer pipe 1 and the chute scale 2. This ensures that the metering of the transfer pipe 1 and the chute scale 2 is not easily affected by dust accumulation, thus enabling the bulk grain transfer device to operate stably for a long time.

[0063] Reference Figure 2 The bottom end of the filter screen 51 is hinged to the side wall of the filter box 4 via the hinge shaft 511, and the inclined direction of the filter screen 51 is from the direction away from the hinge shaft 511 toward the direction closer to the filter cloth 52.

[0064] Reference Figure 2 and Figure 3 The filter assembly 5 also includes a vibration part 53 and a striking part 54. The vibration part 53 includes a vibration groove 531, a magnetic block 532, a baffle 533 and an electromagnet 534. The vibration groove 531 is an arc-shaped groove and is connected to the filter box 4. The vibration groove 531 is located at the end of the filter screen 51 away from the hinge axis 511. The end of the filter screen 51 away from the hinge axis 511 is rounded and slidably disposed in the vibration groove 531. The end of the filter screen 51 away from the hinge axis 511 is in contact with the arc-shaped side of the vibration groove 531.

[0065] The magnetic block 532 is rectangular and is fixedly embedded at the end of the filter screen 51 away from the hinge shaft 511. The magnetic block 532 is located on the side of the filter screen 51 away from the filter cloth 52. The baffle 533 is rectangular and is fixed on the side of the vibrating chute 531 near the filter cloth 52. The surface of the baffle 533 is perpendicular to the tangent direction of the arc side of the vibrating chute 531.

[0066] The electromagnet 534 is rectangular and fixedly inserted into the vibrating groove 531 on the side away from the filter cloth 52. The electromagnet 534 and the magnetic block 532 are located in the same vertical plane perpendicular to the axis of the hinge shaft 511. The electromagnet 534 is electrically connected to a button 535, which is fixedly inserted into the arc-shaped side of the vibrating groove 531 and located within the sliding stroke range of the filter screen 51. The button 535 is positioned close to the electromagnet 534, and the end closest to the inside of the vibrating groove 531 is hemispherical. When the button 535 is pressed, the electromagnet 534 is energized; when the button 535 is released from pressure, the electromagnet 534 is de-energized. In the energized state, the polarities of the electromagnet 534 and the magnetic block 532 on the side closest to each other are the same.

[0067] Reference Figure 2 The striking part 54 includes a rack 541, a striking gear 542, a striking rod 543, and a striking ball 544. The rack 541 is located on the side of the baffle 533 away from the vibration groove 531. The rack 541 is slidably connected to the side wall of the filter box 4, and the sliding direction is towards or away from the baffle 533. The end of the rack 541 near the baffle 533 abuts against the baffle 533. The striking gear 542 is located at the end of the rack 541 away from the baffle 533 and is located above the rack 541. The striking gear 542 meshes with the rack 541 and is rotatably connected to the side wall of the filter box 4. The striking rod 543 is a circular rod, and one end in the axial direction is fixedly connected to the striking gear 542. The other end of the striking rod 543 is fixedly connected to the striking ball 544. The striking ball 544 is spherical and is used to strike the filter cloth 52.

[0068] A rectangular box-shaped dust collection box 55 is connected to the filter box 4. The connection between the dust collection box 55 and the filter box 4 is located between the hinge shaft 511 and the second exhaust pipe 62. The side of the dust collection box 55 away from the second exhaust pipe 62 is flush with the hinge shaft 511.

[0069] In use, the airflow from the second suction pipe 62 blows onto the filter screen 51, causing it to swing. When the end of the filter screen 51 slides to the button 535 position, it presses against the button, energizing the electromagnet 534. The energized electromagnet 534 applies a magnetic force to the magnetic block 532, driving the filter screen 51 to swing in the opposite direction. The end of the filter screen 51 then impacts the baffle 533. The impact force between the filter screen 51 and the baffle 533 causes it to vibrate, driving the rack 5... 41 Sliding, the filter screen 51 cleans dust under the action of vibration. The rack 541 drives the knocking gear 542 to rotate. The knocking gear 542 drives the knocking rod 543 to swing. The knocking rod 543 drives the knocking ball 544 to knock on the filter cloth 52 to clean the dust on the filter cloth 52. Thus, both the filter screen 51 and the filter cloth 52 can be automatically cleaned of dust. The dust on the side of the filter screen 51 close to the filter cloth 52 and the dust on the filter cloth 52 can slide into the dust collection box 55 for centralized collection.

[0070] Reference Figure 4 The transfer pipeline 1 is equipped with a cleaning component 8, which includes a guide plate 81, a collection box 82, and a cleaning part 83.

[0071] Reference Figure 4 and Figure 5 The first air blowing pipe 71 is connected to the bottom of the transfer pipe 1 through the air blowing box 711. The air blowing box 711 is rectangular. Multiple air blowing holes 11 are opened at the bottom of the transfer pipe 1. The multiple air blowing holes 11 are all located in the projection area of ​​the air blowing box 711 in the transfer pipe 1. The multiple air blowing holes 11 are arranged along the flow direction of the bulk grain. The air blowing holes 11 are rectangular, and their length direction is consistent with the width direction of the transfer pipe 1. The width dimension of the air blowing hole 11 is smaller than the size of a single grain.

[0072] Multiple guide plates 81 are provided, all located inside the air blowing box 711. The guide plates 81 are fixed to the transfer pipe 1 and correspond one-to-one with the air blowing holes 11. The guide plates 81 are rectangular plates with the same length as the air blowing holes 11. The guide plates 81 are located on the side of the air blowing holes 11 away from the trough scale 2. The length direction of the guide plates 81 is the same as the length direction of the air blowing holes 11. The direction of the airflow blown out of the air blowing holes 11 by the guide plates 81 forms an acute angle with the flow direction of the bulk grain.

[0073] Reference Figure 4 The collection box 82 is rectangular and is fixedly installed on the top of the transfer pipe 1 on one side. The collection box 82 has a collection hole 821 on the side near the transfer pipe 1. The collection hole 821 is rectangular and located at the end of the collection box 82 away from the slide scale 2. The airflow blown out by all the air holes 11 forms an airflow column, which is directly opposite the collection hole 821.

[0074] Reference Figure 4 and Figure 6 The collection box 82 has multiple material leakage holes 822 on one side near the transfer pipe 1. The multiple material leakage holes 822 are all located at one end of the collection box 82 near the chute scale 2. The multiple material leakage holes 822 are arranged in a matrix. The material leakage holes 822 are circular and larger than the size of a single grain.

[0075] Reference Figure 1 The first suction pipe 61 is connected to a suction box 611 at the end away from the filter box 4. The suction box 611 is rectangular and its open end is fixed to the side of the collection box 82 away from the transfer pipe 1.

[0076] Reference Figure 6 The collection box 82 has multiple air intake holes 823 on the side away from the transfer pipe 1. The multiple air intake holes 823 are arranged in a matrix and are all located in the projection area of ​​the collection hole 821 on the side of the collection box 82 away from the transfer pipe 1. The air intake holes 823 are circular and smaller than the size of a single grain.

[0077] The impurity removal part 83 is disposed inside the impurity collection box 82, and two are symmetrically arranged along the flow direction of the bulk grain. The impurity removal part 83 includes an impurity removal gear 831, an impurity removal rod 832, a torsion spring 833, and an incomplete gear ring 834. The impurity removal gear 831 is rotatably connected to the impurity collection box 82, and its axis is perpendicular to the side wall of the impurity collection box 82 near the transfer pipe 1. The impurity removal rod 832 is rectangular, and its length direction is parallel to the diameter direction of the impurity removal gear 831. One end of the impurity removal rod 832 is fixed to the impurity removal gear 831, and the length of the impurity removal rod 832 is less than half the width of the impurity collection box 82. The torsion spring 833 is fixed between the impurity removal gear 831 and the impurity collection box 82 and is used to drive the impurity removal gear 831 to reset. The incomplete gear ring 834 is sleeved on the impurity removal gear 831 and is rotatably connected to the impurity collection box 82. The incomplete gear ring 834 is used to mesh with the impurity removal gear 831.

[0078] An incomplete gear ring 834 is coaxially fixed to a rotating shaft 835. The end of the rotating shaft 835 away from the incomplete gear ring 834 is inserted into the vacuum box 611. The rotating shaft 835 is rotatably connected to the collection box 82. The end of the rotating shaft 835 located in the vacuum box 611 is coaxially fixed to an impeller 836.

[0079] In use, the first air blowing pipe 71 blows air into the transfer pipe 1 through the air blowing box 711 and the air blowing hole 11. The guide plate 81 guides the angle of the air blowing in, so that the airflow blows towards the collection hole 821. The airflow drives the impurities mixed in the bulk grain into the collection box 82. The first air suction pipe 61 sucks the dust in the transfer pipe 1 through the air suction box 611 and the suction hole 823. The suction airflow drives the impeller 836 to rotate. The impeller 836 drives the incomplete gear ring 834 to rotate through the rotating shaft 835. The incomplete gear ring 834 intermittently drives the impurity-discarding gear 831 to rotate. The torsion spring 833 drives the impurity-discarding gear 831 to reset. The impurity-discarding gear 831 reciprocates to drive the impurity-discarding rod 832 to swing. The impurity-discarding rod 832 reciprocates to push the impurities to slide to the bottom of the collection box 82, realizing the centralized collection of impurities.

[0080] The implementation principle of the bulk grain transfer device in this application embodiment is as follows: During use, the air pump 63 is started, drawing dust into the filter box 4. The filter screen 51 filters the dust, and the filter cloth 52 performs secondary filtration. The airflow from the second suction pipe 62 blows onto the filter screen 51, driving it to swing. The end of the filter screen 51 slides within the vibration groove 531. Pressing the button 535 energizes the electromagnet 534, which in turn drives the filter screen 51. The reverse swing causes the filter screen 51 to strike the baffle 533. The impact force between the filter screen 51 and the baffle 533 cleans the dust on the filter screen 51 and drives the rack 541 to slide. The rack 541 drives the striking gear 542 to rotate. The striking gear 542 drives the striking ball 544 to strike the filter cloth 52 through the striking rod 543 to clean the dust on the filter cloth 52. The filtered air is blown into the transfer pipe 1 and the slide scale 2 to balance the air pressure in the transfer pipe 1 and the slide scale 2.

[0081] The guide plate 81 directs the airflow blowing into the transfer pipe 1 toward the collection hole 821. The blowing airflow drives the impurities mixed in the bulk grain into the collection box 82. The airflow sucked in the suction box 611 drives the impeller 836 to rotate. The impeller 836 drives the incomplete gear ring 834 to rotate through the rotating shaft 835. The incomplete gear ring 834 intermittently drives the impurity-dispelling gear 831 to rotate. Under the elastic force of the torsion spring 833, the impurity-dispelling gear 831 reciprocates to drive the impurity-dispelling rod 832 to dispel the impurities, so as to collect the impurities in a concentrated manner. Thus, through the real-time suction of dust and the real-time blowing of air into the transfer pipe 1 and the chute scale 2, the dust is unlikely to affect the measurement of the chute scale 2, thereby enabling the bulk grain transfer device to operate stably for a long time.

[0082] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A bulk grain transfer device, characterized in that: The invention comprises a transfer pipe (1), a chute scale (2) and a dust cleaning mechanism (3); the transfer pipe (1) is connected to the inlet of the chute scale (2) and is arranged to be inclined along the inclination direction of the inlet of the chute scale (2); and the dust cleaning mechanism (3) comprises a filter box (4), a filter assembly (5), an air extraction assembly (6) and an air blowing assembly (7); The filter assembly (5) comprises a filter screen (51); the air extraction assembly (6) comprises a first air extraction pipe (61) and a second air extraction pipe (62); the air blowing assembly (7) comprises a first air blowing pipe (71) and a second air blowing pipe (72); The filter screen (51) is arranged in the filter box (4); An air pump (63) is provided on both the first air extraction pipe (61) and the second air extraction pipe (62); one end of the first air extraction pipe (61) is connected to the transfer pipe (1), and the other end is connected to the filter box (4); one end of the second air extraction pipe (62) is connected to the chute scale (2), and the other end is connected to the filter box (4); the position where the first air extraction pipe (61) is connected to the filter box (4) and the position where the second air extraction pipe (62) is connected to the filter box (4) are respectively located on both sides of the filter screen (51), and the second air extraction pipe (62) faces the filter screen (51); One end of the first air blowing pipe (71) and one end of the second air blowing pipe (72) are both connected to the filter box (4), and the connection positions are both located on a side of the filter screen (51) close to the second air extraction pipe (62), the other end of the first air blowing pipe (71) is connected to the transfer pipe (1), and the other end of the second air blowing pipe (72) is connected to the chute scale (2); The filter assembly (5) further comprises a filter cloth (52), the filter cloth (52) being fixedly connected to the filter box (4) and located on a side of the second air extraction pipe (62) away from the filter screen (51); One end of the filter screen (51) close to the second air extraction pipe (62) is hinged to the filter box (4) via a hinge shaft (511); the filter screen (51) is tilted in a direction away from the hinge shaft (511) and toward a direction close to the filter cloth (52); the filter screen (51) is connected to a vibration part (53); the vibration part (53) comprises a vibration chute (531), a magnetic block (532), a baffle (533) and an electromagnet (534); The vibration chute (531) is in the shape of an arc groove and is connected to the filter box (4). The vibration chute (531) is located at an end of the filter screen (51) away from the hinge shaft (511). The end of the filter screen (51) away from the hinge shaft (511) is slidably arranged in the vibration chute (531). The magnetic block (532) is fixedly mounted on an end of the filter screen (51) away from the hinge shaft (511); The baffle (533) is fixedly mounted on a side of the vibration chute (531) close to the filter cloth (52); The electromagnet (534) is fixedly mounted on a side of the vibration chute (531) away from the filter cloth (52), and the electromagnet (534) is electrically connected to a button (535). The button (535) is fixedly mounted on the vibration chute (531) and is located within the sliding travel range of the filter net (51). The button (535) is arranged close to the electromagnet (534); When the button (535) is squeezed, the electromagnet (534) is energized, and when the button (535) is released from being squeezed, the electromagnet (534) is de-energized, and the electromagnet (534) in the energized state has the same polarity as the side of the magnetic block (532) that is close to each other; A knocking part (54) is arranged in the filter box (4), and the knocking part (54) comprises a rack (541), a knocking gear (542), a knocking rod (543) and a knocking ball (544); the rack (541) is located on a side of the baffle (533) away from the vibration chute (531) and is slidably connected to the filter box (4); one end of the rack (541) close to the baffle (533) abuts against the baffle (533); the knocking gear (542) meshes with the rack (541) and is rotatably connected to the filter box (4); one end of the knocking rod (543) is fixedly connected to the knocking gear (542), and the other end is fixedly connected to the knocking ball (544); the knocking ball (544) is used to knock the filter cloth (52).

2. A bulk grain transfer device according to claim 1, characterized in that: The filter box (4) is connected to an ash collecting box (55); the connection point between the ash collecting box (55) and the filter box (4) is located between the hinge shaft (511) and the second air extraction pipe (62); a side of the ash collecting box (55) away from the second air extraction pipe (62) is flush with the hinge shaft (511).

3. A bulk grain transfer device according to claim 1, characterized in that: The transfer pipe (1) is provided with a debris removal component (8), and the debris removal component (8) comprises a guide plate (81) and a debris collection box (82); The first air blowing pipe (71) is connected to the bottom of the transfer pipe (1) through the air blowing box (711); a plurality of air blowing holes (11) are provided at the bottom of the transfer pipe (1); the plurality of air blowing holes (11) are all located within a projection area of ​​the air blowing box (711) on the transfer pipe (1); and the size of the air blowing hole (11) is smaller than the size of a single grain of loose grain; A plurality of guide plates (81) are provided and are all located in the blowing box (711). The guide plates (81) are fixedly connected to the transfer pipe (1) and correspond one to one with the blowing holes (11). The direction of the airflow blown out of the guide blowing holes (11) of the guide plates (81) forms an acute angle with the flow direction of the bulk grain. The debris collecting box (82) is fixedly installed on the top of the transfer pipe (1), and a debris collecting hole (821) is opened on a side close to the transfer pipe (1). The debris collecting hole (821) is located at an end of the debris collecting box (82) away from the chute scale (2). The airflows blown out of all the air holes (11) form an airflow column, and the airflow column is directly opposite to the debris collecting hole (821).

4. A bulk grain transfer device according to claim 3, characterized in that: A plurality of material leakage holes (822) are provided on a side of the debris collection box (82) close to the transfer pipe (1), and the size of the material leakage holes (822) is larger than the size of a single grain of loose grain.

5. The bulk grain transfer device according to claim 3, characterized in that: The debris clearing assembly (8) further comprises a debris clearing part (83), which is arranged in the debris collecting box (82) and is symmetrically provided with two of them along the flow direction of the loose grain. The debris clearing part (83) comprises a debris clearing gear (831), a debris clearing rod (832), a torsion spring (833) and an incomplete gear ring (834). The debris clearing gear (831) is rotatably connected to the debris collecting box (82), one end of the debris clearing rod (832) is fixedly connected to the debris clearing gear (831), the torsion spring (833) is arranged between the debris clearing gear (831) and the debris collecting box (82) and is used to drive the debris clearing gear (831) to reset, and the incomplete gear ring (834) is rotatably connected to the debris collecting box (82), the incomplete gear ring (834) is sleeved on the debris clearing gear (831) and is used to mesh with the debris clearing gear (831).

6. A bulk grain transfer device according to claim 5, characterized in that: One end of the first air extraction pipe (61) away from the filter box (4) is connected to an air extraction box (611); an open end of the air extraction box (611) is fixedly arranged on a side of the debris collection box (82) away from the transfer pipe (1); and a plurality of air suction holes (823) are provided on the side of the debris collection box (82) away from the transfer pipe (1).

7. A bulk grain transfer device according to claim 6, characterized in that: The incomplete gear ring (834) is coaxially fixedly connected to a rotating shaft (835); one end of the rotating shaft (835) away from the incomplete gear ring (834) penetrates into the air extraction box (611); the rotating shaft (835) is rotatably connected to the debris collection box (82); and one end of the rotating shaft (835) located in the air extraction box (611) is coaxially fixedly connected to an impeller (836).

Images