A bulk grain transfer metering device with automatic material level control

Abstract

This application relates to an automatic level control metering device for bulk grain transfer, belonging to the technical field of bulk grain transfer. It includes a feed pipe with a chute scale installed on it; a buffer chute, one end of which is connected to the feed pipe, and a capacitive distance sensor installed inside the buffer chute; a discharge pipe connected to the end of the buffer chute away from the discharge pipe; a gate assembly mounted on the discharge pipe; and a controller connected to the gate assembly, used to control the gate assembly, and electrically connected to the capacitive distance sensor. This application improves the discharge stability of the bulk grain transfer device.

Description

Technical Field

[0001] This application relates to the technical field of bulk grain transfer, and in particular to a bulk grain transfer metering device with automatic material level control. Background Technology

[0002] To prevent bulk grain from caking inside silos, it is necessary to periodically transfer the bulk grain to different silos. This transfer is achieved between silos via a bulk grain transfer device. During the transfer process, the bulk grain needs to be measured for storage management purposes.

[0003] Regarding the aforementioned technologies, during the transfer process, the material level in the transfer pipeline will change with the feed rate and feed speed. Maintaining the same discharge speed for the bulk grain will affect the stability of subsequent operations. Summary of the Invention

[0004] To improve the discharge stability of bulk grain transfer devices, this application provides a bulk grain transfer metering device with automatic material level control.

[0005] This application provides an automatic level control device for bulk grain transfer and metering, which adopts the following technical solution:

[0006] A bulk grain transfer and metering device with automatic level control, comprising:

[0007] A feed pipe, on which a chute scale is installed;

[0008] A buffer chute, one end of which is connected to the feed pipe, and a capacitive distance sensor is installed inside the buffer chute;

[0009] A discharge pipe, wherein the discharge pipe is connected to the end of the buffer chute away from the discharge pipe;

[0010] A gate assembly, which is mounted on the discharge pipe;

[0011] A controller is connected to the gate assembly and is used to control the gate assembly. The controller is also electrically connected to the capacitive distance sensor.

[0012] By adopting the above technical solution, bulk grain enters the buffer chute through the feed pipe and is weighed by a chute scale. Simultaneously, a capacitive distance sensor detects the bulk grain level within the buffer chute, transmitting the level signal to the controller, which then controls the opening size of the gate assembly. This ensures the bulk grain level remains consistently between the high and low material levels, improving the discharge stability of the bulk grain transfer device.

[0013] Optionally, the gate assembly includes:

[0014] Two first telescopic rods are symmetrically and fixedly installed on the discharge pipe, and the controller is electrically connected to the first telescopic rods.

[0015] A sliding plate is slidably mounted on the discharge pipe, and the sliding plate is fixedly connected to the movable end of the first telescopic rod.

[0016] By adopting the above technical solution, when the gate assembly opening is increased, the controller controls the movable end of the first telescopic rod to retract, causing the two sliding plates to move away from each other, thus increasing the diameter of the discharge pipe. When the gate assembly opening is decreased, the controller controls the movable end of the first telescopic rod to extend, causing the two sliding plates to move closer together, thus decreasing the diameter of the discharge pipe and improving the discharge stability of the bulk grain transfer device. This also prevents material from accumulating in the buffer chute and avoids material buildup on the chute scale, which would affect the scale's metering accuracy.

[0017] Optionally, two sets of material shaking components are also installed inside the discharge pipe. The two sets of material shaking components are respectively connected to the two sliding plates. Each set of material shaking components includes:

[0018] Two sliding rods are provided, which pass through the discharge pipe. The two sliding rods are horizontally slidably mounted on the discharge pipe, and the two sliding rods are vertically slidably mounted on the discharge pipe.

[0019] A push plate is disposed inside the discharge pipe and is fixedly connected to the sliding rod;

[0020] A first spring, one end of which is fixedly installed on the inner wall of the discharge pipe, and the other end of which is fixedly connected to the push plate;

[0021] A cam is rotatably mounted on the discharge pipe, and the cam abuts against the end of the sliding rod away from the push plate.

[0022] By adopting the above technical solution, the cam rotates and drives the sliding rod to move. The sliding rod moves synchronously with the push plate. At the same time, the first spring ensures that the sliding rod is always in contact with the cam, so that the sliding rod reciprocates, which in turn drives the push plate to reciprocate. Through the reciprocating motion of the two push plates, the loose grain in the discharge pipe is shaken, so as to avoid the loose grain from accumulating in the discharge pipe and being unable to be discharged normally.

[0023] Optionally, the shaking component further includes:

[0024] Driven bevel gear, which is coaxial with and fixedly connected to the cam;

[0025] A driving bevel gear, which meshes with a driven bevel gear;

[0026] A spur gear, which is coaxial with and fixedly connected to the driving bevel gear, and is rotatably mounted on the discharge pipe;

[0027] A rack, which meshes with the spur gear and is fixedly connected to the sliding plate.

[0028] By adopting the above technical solution, when the sliding plate slides, it drives the rack to move, the rack to move in turn drives the spur gear to rotate, the spur gear to rotate in turn drives the driving bevel gear to rotate, the driving bevel gear to rotate in turn drives the driven bevel gear to rotate, and the driven bevel gear to rotate in turn drives the cam to rotate, thereby improving the mechanical linkage of a bulk grain transfer metering device with automatic material level control.

[0029] Optionally, the shaking component further includes:

[0030] The third telescopic rod has its fixed end fixedly installed on the discharge pipe, and its movable end slidably connected to the sliding rod.

[0031] The second spring is sleeved on the third telescopic rod. One end of the second spring is fixedly connected to the fixed end of the third telescopic rod, and the other end of the second spring is fixedly connected to the movable end of the third telescopic rod.

[0032] By adopting the above technical solution, when the amount of bulk grain accumulated in the discharge pipe increases, the downward pressure exerted by the bulk grain on the sliding rod increases, causing the sliding rod and push plate to move downwards vertically. This downward movement of the sliding rod and push plate then shortens the movable end of the third telescopic rod. When the amount of bulk grain accumulated in the discharge pipe decreases, the downward pressure exerted by the bulk grain on the sliding rod decreases. Under the action of the third spring, the sliding rod and push plate move upwards vertically, causing the movable end of the third telescopic rod to extend. This improves the mechanical linkage of a bulk grain transfer and metering device with automatic material level control.

[0033] Optionally, the buffer chute is provided with high material level points and low material level points:

[0034] The high material point is located at the end of the buffer chute away from the discharge pipe;

[0035] The low material point is located at one end of the buffer chute near the discharge pipe.

[0036] By adopting the above technical solution, a capacitive distance sensor detects the bulk grain level in the buffer chute. The capacitive distance sensor transmits the bulk grain level signal to the controller, which controls the opening size of the gate assembly. When the material level approaches the high material level point, the opening of the gate assembly is increased; when the material level approaches the low material level point, the opening of the gate assembly is decreased, ensuring that the bulk grain level is always maintained between the high and low material levels, thus improving the discharge stability of the bulk grain transfer device.

[0037] Optionally, a feed control component is installed inside the buffer chute. The feed control component is installed on the side of the high feed point away from the low feed point, and the feed control component includes:

[0038] A feed plate, which is fixedly installed inside the buffer chute;

[0039] There is at least one feed tube, and the feed tubes are evenly and fixedly installed on the feed plate. The inner cavity of the feed tube is cylindrical.

[0040] A first rotating shaft is inserted through and rotatably mounted on the feed pipe;

[0041] A first baffle is disposed inside the feed pipe and is fixedly installed on the first rotating shaft. The first baffle is semi-circular in shape and can fit tightly against the inner wall of the feed pipe.

[0042] The second rotating shaft is coaxially sleeved and rotatably mounted on the first rotating shaft, and the second rotating shaft passes through and rotatably mounted on the feed pipe;

[0043] The second baffle is disposed inside the feed pipe and is fixedly installed on the second rotating shaft. The second baffle is semi-circular in shape and can fit tightly against the inner wall of the feed pipe.

[0044] By adopting the above technical solution, the first and second baffles rotate around the first rotating shaft axis. The first and second baffles rotate in directions away from each other until they are on the same plane, completely blocking the feed pipe. This prevents the bulk grain above the feed plate from entering the buffer chute, thus avoiding excessive bulk grain in the buffer chute exceeding the high material level. The first and second baffles then rotate in directions closer to each other until they are in contact, fully opening the feed pipe and accelerating the entry of bulk grain above the feed plate into the buffer chute, preventing insufficient bulk grain in the buffer chute from exceeding the low material level. This ensures that the bulk grain level is always maintained between the high and low material levels, improving the discharge stability of the bulk grain transfer device.

[0045] Optionally, the feed control component further includes:

[0046] The first rotating block is fixedly mounted on the first rotating shaft;

[0047] A first slider is fixedly installed at the end of the first rotating block away from the first rotating shaft;

[0048] The second rotating block is fixedly mounted on the second rotating shaft;

[0049] The second slider is fixedly installed at the end of the second rotating block away from the second rotating shaft.

[0050] By adopting the above technical solution, the first slider and the second slider slide, thereby driving the first rotating block and the second rotating block to rotate around the first rotating shaft axis. The rotation of the first rotating block and the second rotating block, in turn, drives the first baffle and the second baffle to rotate around the first rotating shaft axis, thereby improving the mechanical linkage of the feeding control component.

[0051] Optionally, the feed control component further includes:

[0052] A sliding plate, which is slidably mounted on the feed pipe;

[0053] A first slide groove is formed on the slide plate, and a first rotating shaft is slidably installed in the first slide groove;

[0054] Two second slide grooves are symmetrically formed on the slide plate, and the first slider and the second slider are slidably installed in the two second slide grooves respectively.

[0055] By adopting the above technical solution, the slide plate moves while driving the first rotating shaft to slide in the first slide groove. The movement of the first rotating shaft then drives the first slider and the second slider to slide in the second slide groove, thereby improving the mechanical linkage of the feeding control component.

[0056] Optionally, the feeding control assembly further includes a second telescopic rod, the fixed end of which is fixedly installed on the feeding pipe, and the movable end of which is fixedly connected to the slide plate;

[0057] The rodless cavity at the fixed end of the third telescopic rod is connected to the rodless cavity at the fixed end of the second telescopic rod.

[0058] By adopting the above technical solution, when the movable end of the third telescopic rod shortens, the hydraulic fluid in the fixed end of the third telescopic rod enters the rodless cavity of the fixed end of the second telescopic rod through the connecting pipe, causing the movable end of the second telescopic rod to extend. This extension of the movable end of the second telescopic rod then drives the slide plate to move away from the fixed end of the second telescopic rod. When the movable end of the third telescopic rod extends, the hydraulic fluid in the fixed end of the second telescopic rod enters the rodless cavity of the fixed end of the third telescopic rod through the connecting pipe, causing the movable end of the second telescopic rod to shorten. This shortening of the movable end of the second telescopic rod then drives the slide plate to move closer to the fixed end of the second telescopic rod, thus improving the mechanical linkage of the feeding control component.

[0059] In summary, this application includes at least one of the following beneficial technical effects:

[0060] 1. Bulk grain enters the buffer chute through the feed pipe and is weighed by a chute scale. Simultaneously, a capacitive distance sensor detects the grain level within the buffer chute and transmits the signal to the controller, which then controls the opening of the gate assembly. This ensures the bulk grain level remains consistently between the high and low material levels, improving the discharge stability of the bulk grain transfer device.

[0061] 2. When the gate assembly opening is increased, the controller controls the movable end of the first telescopic rod to retract, causing the two sliding plates to move away from each other, thus increasing the diameter of the discharge pipe. When the gate assembly opening is decreased, the controller controls the movable end of the first telescopic rod to extend, causing the two sliding plates to move closer to each other, thus decreasing the diameter of the discharge pipe. This improves the discharge stability of the bulk grain transfer device, prevents material from accumulating in the buffer chute, and avoids material accumulation on the chute scale, which would affect the metering accuracy of the chute scale.

[0062] 3. The rotation of the cam drives the sliding rod to move. The sliding rod moves synchronously with the push plate. At the same time, the first spring ensures that the sliding rod is always in contact with the cam, causing the sliding rod to reciprocate. This, in turn, drives the push plate to reciprocate. Through the reciprocating motion of the two push plates, the loose grain in the discharge pipe is shaken, preventing the loose grain from accumulating in the discharge pipe and being unable to be discharged normally. Attached Figure Description

[0063] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0064] Figure 2 This is a schematic diagram illustrating the internal structure of the embodiment;

[0065] Figure 3 This is a structural diagram used to demonstrate the material shaking component;

[0066] Figure 4 yes Figure 2Enlarged view of point A;

[0067] Figure 5 This is a structural diagram used to illustrate the feed control component;

[0068] Figure 6 This is a schematic diagram used to illustrate the structure of the feed pipe;

[0069] Figure 7 This is a structural diagram used to illustrate the first baffle.

[0070] Explanation of reference numerals in the attached figures:

[0071] 1. Feed pipe; 11. Slide chute scale;

[0072] 2. Buffer chute; 21. High material level point; 22. Low material level point; 23. Capacitive distance sensor;

[0073] 3. Discharge pipe;

[0074] 4. Gate assembly; 41. First telescopic rod; 42. Sliding plate;

[0075] 5. Feed control assembly; 51. Feed plate; 52. Feed pipe; 531. First rotating shaft; 532. First rotating block; 533. First slider; 534. First baffle; 541. Second rotating shaft; 542. Second rotating block; 543. Second slider; 544. Second baffle; 55. Second telescopic rod; 56. Slide plate; 561. First chute; 562. Second chute;

[0076] 6. Shaking assembly; 61. Sliding rod; 62. Push plate; 63. First spring; 64. Cam; 65. Rack; 66. Spur gear; 67. Driving bevel gear; 68. Driven bevel gear; 69. Third telescopic rod; 691. Second spring. Detailed Implementation

[0077] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0078] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0079] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0080] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0081] This application discloses an automatic material level control device for bulk grain transfer and metering.

[0082] Reference Figure 1 and Figure 2 The automatic level control bulk grain transfer and metering device includes a feed pipe 1, a buffer chute 2, a discharge pipe 3, a gate assembly 4, and a controller. A chute scale 11 is installed on the feed pipe 1. One end of the buffer chute 2 is connected to the feed pipe 1, and a capacitive distance sensor 23 is installed inside the buffer chute 2. The buffer chute 2 has a high material level point 21 and a low material level point 22. The high material level point 21 is located at the end of the buffer chute 2 furthest from the discharge pipe 3, and the low material level point 22 is located at the end of the buffer chute 2 closest to the discharge pipe 3. The discharge pipe 3 is connected to the end of the buffer chute 2 furthest from the discharge pipe 3. The gate assembly 4 is installed on the discharge pipe 3. The controller is connected to the gate assembly 4 and is used to control the gate assembly 4. The controller is electrically connected to the capacitive distance sensor 23.

[0083] Bulk grain enters the buffer chute 2 through the feed pipe 1 and is weighed by the chute scale 11. Simultaneously, a capacitive distance sensor 23 detects the bulk grain level in the buffer chute 2 and transmits the level signal to the controller, which then controls the opening size of the gate assembly 4. When the grain level approaches the high material level point 21, the opening of the gate assembly 4 is increased; when the grain level approaches the low material level point 22, the opening of the gate assembly 4 is decreased, ensuring that the bulk grain level remains between the high material level point 21 and the low material level point 22, thus improving the discharge stability of the bulk grain transfer device.

[0084] Reference Figure 2 , Figure 3 and Figure 4 The gate assembly 4 includes two first telescopic rods 41 and a sliding plate 42. The fixed ends of the two first telescopic rods 41 are symmetrically and fixedly installed on the discharge pipe 3, and the controller is electrically connected to the first telescopic rods 41. The sliding plate 42 is slidably installed on the discharge pipe 3, and the sliding plate 42 is fixedly connected to the movable end of the first telescopic rods 41.

[0085] When the material level approaches the high material level point 21, the opening of the gate assembly 4 is increased, and the controller controls the movable end of the first telescopic rod 41 to retract. The movable end of the first telescopic rod 41 drives the two sliding plates 42 to move away from each other, increasing the diameter of the discharge pipe 3. When the material level approaches the low material level point 22, the opening of the gate assembly 4 is decreased, and the controller controls the movable end of the first telescopic rod 41 to extend. The movable end of the first telescopic rod 41 drives the two sliding plates 42 to move closer to each other, decreasing the diameter of the discharge pipe 3. This ensures that the bulk grain level is always maintained between the high material level point 21 and the low material level point 22, improving the discharge stability of the bulk grain transfer device. It also prevents material from accumulating in the buffer chute 2 and avoids material accumulation on the chute scale 11, which would affect the metering accuracy of the chute scale 11.

[0086] Reference Figure 2 , Figure 3 and Figure 4 Two sets of shaking components 6 are also installed inside the discharge pipe 3. Each set of shaking components 6 is connected to two sliding plates 42. Each set of shaking components 6 includes two sliding rods 61, a push plate 62, a first spring 63, a cam 64, a driven bevel gear 68, a driving bevel gear 67, a spur gear 66, a rack 65, a third telescopic rod 69, and a second spring 691. The two sliding rods 61 pass through the discharge pipe 3, sliding horizontally and vertically. The push plate 62 is located inside the discharge pipe 3 and is fixedly connected to the sliding rods 61. One end of the first spring 63 is fixedly installed on the inner wall of the discharge pipe 3, and the other end is fixedly connected to the push plate 62. The cam 64 is rotatably installed on the discharge pipe 3, and abuts against the end of the sliding rod 61 away from the push plate 62.

[0087] Driven bevel gear 68 is coaxial with and fixedly connected to cam 64. Driven bevel gear 67 meshes with driven bevel gear 68. Spur gear 66 is coaxial with and fixedly connected to drive bevel gear 67, and is rotatably mounted on discharge pipe 3. Rack 65 meshes with spur gear 66, and is fixedly connected to sliding plate 42.

[0088] The fixed end of the third telescopic rod 69 is fixedly installed on the discharge pipe 3, and the movable end of the third telescopic rod 69 is slidably connected to the sliding rod 61. The fixed end of the third telescopic rod 69 is filled with hydraulic fluid. The second spring 691 is sleeved on the third telescopic rod 69, with one end of the second spring 691 fixedly connected to the fixed end of the third telescopic rod 69 and the other end of the second spring 691 fixedly connected to the movable end of the third telescopic rod 69.

[0089] When the sliding plate 42 slides, it drives the rack 65 to move. The movement of the rack 65 in turn drives the spur gear 66 to rotate. The rotation of the spur gear 66 in turn drives the driving bevel gear 67 to rotate. The rotation of the driving bevel gear 67 in turn drives the driven bevel gear 68 to rotate. The rotation of the driven bevel gear 68 in turn drives the cam 64 to rotate. The rotation of the cam 64 in turn pushes the sliding rod 61 to move. At the same time, the movement of the sliding rod 61 drives the push plate 62 to move synchronously. Under the action of the first spring 63, the sliding rod 61 is always in contact with the cam 64, so that the sliding rod 61 reciprocates, which in turn drives the push plate 62 to reciprocate. Through the reciprocating movement of the two push plates 62, the loose grain in the discharge pipe 3 is shaken, so as to prevent the loose grain from accumulating in the discharge pipe 3 and being unable to be discharged normally.

[0090] When the amount of bulk grain accumulated in the discharge pipe 3 increases, the downward pressure exerted by the bulk grain on the sliding rod 61 increases, causing the sliding rod 61 and the push plate 62 to move downwards. This downward movement of the sliding rod 61 and the push plate 62 then shortens the movable end of the third telescopic rod 69. When the amount of bulk grain accumulated in the discharge pipe 3 decreases, the downward pressure exerted by the bulk grain on the sliding rod 61 decreases. Under the action of the third spring, the sliding rod 61 and the push plate 62 move upwards. This upward movement of the sliding rod 61 and the push plate 62 then extends the movable end of the third telescopic rod 69.

[0091] Reference Figure 5 , Figure 6 and Figure 7A feed control assembly 5 is installed inside the buffer chute 2. The feed control assembly 5 is installed on the side of the high material point 21 away from the low material point 22. The feed control assembly 5 includes a feed plate 51, at least one feed pipe 52, a first rotating shaft 531, a first rotating block 532, a first slider 533, a first baffle 534, a second rotating shaft 541, a second rotating block 542, a second slider 543, a second baffle 544, a second telescopic rod 55, a slide plate 56, a first chute 561, and two second chute 562. The feed plate 51 is fixedly installed inside the buffer chute 2. At least one feed pipe 52 is evenly and fixedly inserted through the feed plate 51, and the inner cavity of the feed pipe 52 is cylindrical. The first rotating shaft 531 is inserted through and rotatably installed on the feed pipe 52. A first baffle 534 is disposed inside the feed pipe 52 and is fixedly mounted on the first rotating shaft 531. The first baffle 534 is semi-circular in shape and can fit tightly against the inner wall of the feed pipe 52. A second rotating shaft 541 is coaxially sleeved and rotatably mounted on the first rotating shaft 531, and passes through and rotatably mounted on the feed pipe 52. A second baffle 544 is disposed inside the feed pipe 52 and is fixedly mounted on the second rotating shaft 541. The second baffle 544 is semi-circular in shape and can fit tightly against the inner wall of the feed pipe 52.

[0092] The first rotating block 532 is fixedly mounted on the first rotating shaft 531. The first slider 533 is fixedly mounted on the end of the first rotating block 532 away from the first rotating shaft 531. The second rotating block 542 is fixedly mounted on the second rotating shaft 541. The second slider 543 is fixedly mounted on the end of the second rotating block 542 away from the second rotating shaft 541. The slide plate 56 is slidably mounted on the feed pipe 52. The first groove 561 is formed on the slide plate 56, and the first rotating shaft 531 is slidably mounted in the first groove 561. Two second grooves 562 are symmetrically formed on the slide plate 56, and the first slider 533 and the second slider 543 are slidably mounted in the two second grooves 562 respectively. The fixed end of the second telescopic rod 55 is fixedly mounted on the feed pipe 52, and the movable end of the second telescopic rod 55 is fixedly connected to the slide plate 56. The rodless cavity of the fixed end of the third telescopic rod 69 communicates with the rodless cavity of the fixed end of the second telescopic rod 55.

[0093] When the movable end of the third telescopic rod 69 shortens, the hydraulic fluid in the fixed end of the third telescopic rod 69 enters the rodless cavity of the fixed end of the second telescopic rod 55 through the connecting pipe, causing the movable end of the second telescopic rod 55 to extend. This extension of the movable end of the second telescopic rod 55 then drives the slide plate 56 to move away from the fixed end of the second telescopic rod 55. Simultaneously, the movement of the slide plate 56 causes the first rotating shaft 531 to slide within the first slide groove 561. The movement of the first rotating shaft 531 then causes the first slider 533 and the second slider 543 to slide within the second slide groove 562. The sliding of the first slider 533 and the second slider 543 further drives the first rotating block 532 and... The second rotating block 542 rotates around the axis of the first rotating shaft 531. The rotation of the first rotating block 532 and the second rotating block 542 drives the first baffle 534 and the second baffle 544 to rotate around the axis of the first rotating shaft 531. The first baffle 534 and the second baffle 544 rotate in a direction away from each other until the first baffle 534 and the second baffle 544 rotate to be on the same plane. The feed pipe 52 is completely blocked by the first baffle 534 and the second baffle 544, so that the loose grain above the feed plate 51 cannot enter the buffer chute 2, thus preventing too much loose grain in the buffer chute 2 from exceeding the high material point 21.

[0094] When the movable end of the third telescopic rod 69 extends, hydraulic fluid in the fixed end of the second telescopic rod 55 enters the rodless cavity of the fixed end of the third telescopic rod 69 through the connecting pipe, shortening the length of the movable end of the second telescopic rod 55. This shortening of the movable end of the second telescopic rod 55 causes the sliding plate 56 to move closer to the fixed end of the second telescopic rod 55. Simultaneously, the sliding plate 56 causes the first rotating shaft 531 to slide within the first slide groove 561. The movement of the first rotating shaft 531 further causes the first slider 533 and the second slider 543 to slide within the second slide groove 562. The first slider 533 and the second slider 543 slide into… The first rotating block 532 and the second rotating block 542 rotate around the axis of the first rotating shaft 531. This rotation, in turn, causes the first baffle 534 and the second baffle 544 to rotate around the axis of the first rotating shaft 531. The first baffle 534 and the second baffle 544 rotate towards each other until they are in contact, fully opening the feed pipe 52. This accelerates the entry of bulk grain above the feed plate 51 into the buffer chute 2, preventing insufficient bulk grain in the buffer chute 2 from exceeding the low material level 22. This ensures that the bulk grain level remains between the high material level 21 and the low material level 22, improving the discharge stability of the bulk grain transfer device.

[0095] The implementation principle of the bulk grain transfer and metering device with automatic material level control according to an embodiment of this application is as follows: Bulk grain enters the buffer chute 2 through the feed pipe 1 and is weighed by the chute scale 11. Simultaneously, a capacitive distance sensor 23 detects the bulk grain level in the buffer chute 2 and transmits the bulk grain level signal to the controller, which controls the opening size of the gate assembly 4. When the material level approaches the high material level point 21, the opening of the gate assembly 4 is increased; when the material level approaches the low material level point 22, the opening of the gate assembly 4 is decreased, ensuring that the bulk grain level is always maintained between the high material level point 21 and the low material level point 22, thus improving the discharge stability of the bulk grain transfer device. The above are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A bulk grain transfer and metering device with automatic material level control, characterized in that, include: Feed pipe (1), on which a chute scale (11) is installed; A buffer chute (2) is provided, one end of which is connected to the feed pipe (1), and a capacitive distance sensor (23) is installed inside the buffer chute (2). The discharge pipe (3) is connected to the end of the buffer chute (2) away from the discharge pipe (3); Gate assembly (4), the gate assembly (4) is installed on the discharge pipe (3); A controller is connected to the gate assembly (4) and is used to control the gate assembly (4). The controller is electrically connected to the capacitive distance sensor (23). The gate assembly (4) includes: Two first telescopic rods (41) are fixedly mounted symmetrically on the discharge pipe (3) with their fixed ends symmetrically attached. The controller is electrically connected to the first telescopic rods (41). A sliding plate (42) is slidably mounted on the discharge pipe (3), and the sliding plate (42) is fixedly connected to the movable end of the first telescopic rod (41); The discharge pipe (3) is also equipped with two sets of shaking components (6), which are respectively connected to the two sliding plates (42). Each set of shaking components (6) includes: Two sliding rods (61) are inserted through the discharge pipe (3). The two sliding rods (61) are horizontally slidably installed on the discharge pipe (3) and vertically slidably installed on the discharge pipe (3). Push plate (62), the push plate (62) is disposed inside the discharge pipe (3), and the push plate (62) is fixedly connected to the sliding rod (61); The first spring (63) has one end fixedly installed on the inner wall of the discharge pipe (3), and the other end of the first spring (63) is fixedly connected to the push plate (62); Cam (64) is rotatably mounted on the discharge pipe (3), and cam (64) abuts against the end of the sliding rod (61) away from the push plate (62).

2. The bulk grain transfer and metering device with automatic material level control according to claim 1, characterized in that, The shaking component (6) also includes: Driven bevel gear (68), which is coaxial with and fixedly connected to the cam (64); A driving bevel gear (67) meshes with the driven bevel gear (68); A spur gear (66) is coaxial with and fixedly connected to the drive bevel gear (67), and the spur gear (66) is rotatably mounted on the discharge pipe (3); A rack (65) meshes with the spur gear (66) and is fixedly connected to the sliding plate (42).

3. The bulk grain transfer and metering device with automatic material level control according to claim 1, characterized in that, The shaking component (6) also includes: The third telescopic rod (69) has its fixed end fixedly installed on the discharge pipe (3), and its movable end is slidably connected to the sliding rod (61). The second spring (691) is sleeved on the third telescopic rod (69). One end of the second spring (691) is fixedly connected to the fixed end of the third telescopic rod (69), and the other end of the second spring (691) is fixedly connected to the movable end of the third telescopic rod (69).

4. The bulk grain transfer and metering device with automatic material level control according to claim 3, characterized in that, The buffer chute (2) is provided with a high material point (21) and a low material point (22): The high material point (21) is located at the end of the buffer chute (2) away from the discharge pipe (3); The low material point (22) is located at one end of the buffer chute (2) near the discharge pipe (3).

5. The bulk grain transfer and metering device with automatic material level control according to claim 4, characterized in that, A feed control component (5) is installed inside the buffer chute (2). The feed control component (5) is installed on the side of the high feed point (21) away from the low feed point (22). The feed control component (5) includes: Feed plate (51), the feed plate (51) is fixedly installed inside the buffer chute (2); There is at least one feed tube (52), and the feed tube (52) is evenly and fixedly installed on the feed plate (51). The inner cavity of the feed tube (52) is cylindrical. The first rotating shaft (531) is inserted through and rotatably mounted on the feed pipe (52); The first baffle (534) is disposed inside the feed pipe (52). The first baffle (534) is fixedly installed on the first rotating shaft (531). The first baffle (534) is semi-circular in shape and can fit tightly against the inner wall of the feed pipe (52). The second rotating shaft (541) is coaxially sleeved and rotatably mounted on the first rotating shaft (531), and the second rotating shaft (541) passes through and rotatably mounted on the feed pipe (52); The second baffle (544) is disposed inside the feed pipe (52). The second baffle (544) is fixedly installed on the second rotating shaft (541). The second baffle (544) is semi-circular in shape and can fit tightly against the inner wall of the feed pipe (52).

6. The bulk grain transfer and metering device with automatic material level control according to claim 5, characterized in that, The feed control component (5) also includes: The first rotating block (532) is fixedly mounted on the first rotating shaft (531); The first slider (533) is fixedly installed at the end of the first rotating block (532) away from the first rotating shaft (531); The second rotating block (542) is fixedly mounted on the second rotating shaft (541); The second slider (543) is fixedly installed at one end of the second rotating block (542) away from the second rotating shaft (541).

7. The bulk grain transfer and metering device with automatic material level control according to claim 6, characterized in that, The feed control component (5) also includes: A sliding plate (56) is slidably mounted on the feed pipe (52); The first slide groove (561) is formed on the slide plate (56), and the first rotating shaft (531) is slidably installed in the first slide groove (561); Two second slide grooves (562) are symmetrically opened on the slide plate (56), and the first slider (533) and the second slider (543) are respectively slidably installed in the two second slide grooves (562).

8. The bulk grain transfer and metering device with automatic material level control according to claim 7, characterized in that, The feeding control assembly (5) also includes a second telescopic rod (55), the fixed end of which is fixedly installed on the feeding pipe (52), and the movable end of which is fixedly connected to the slide plate (56); The rodless cavity at the fixed end of the third telescopic rod (69) is connected to the rodless cavity at the fixed end of the second telescopic rod (55).

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