Corn screening device and use method

Abstract

The invention discloses a corn screening device and a method of use, and relates to the technical field of corn screening agricultural machinery. In view of the technical problem that the current corn screening device requires workers to manually feed materials, thereby increasing the labor intensity of workers, the device of the invention comprises a wheel body, a channel is provided on the wheel body, the channel is arranged above the feed port of the screening device body, a feed pipe is arranged on the side of the wheel body, a driving mechanism is provided on the wheel body, the driving mechanism is used to drive the feed pipe to rotate around the side of the wheel body, and the feed pipe is provided with a bucket at one end away from the wheel body; the method of use is that the driving mechanism drives the feed pipe to rotate around the side of the wheel body, the feed pipe drives the bucket to rotate, and the bucket scoops up the corn materials piled on the ground during the rotation process, and when the bucket rotates to the upper side of the wheel body, the corn materials in the bucket sequentially enter the interior of the screening device body through the feed pipe, the channel, and the feed port. The invention can realize the mechanized feeding of the corn screening device and reduce the labor intensity of workers.

Description

Technical Field

[0001] The invention relates to the technical field of corn screening agricultural machinery, and in particular to a corn screening device and a use method thereof. Background Art

[0002] Corn screening device is an agricultural machine mainly used to separate corn kernels and corn cobs. Corn screening device is usually used after corn threshing step. When corn cobs are clamped by threshing wheel and thresher, due to the large gap between threshing wheel and thresher, corn cobs will be crushed or bent and finally fall into the kernel outlet, so that corn cobs and corn kernels are mixed together.

[0003] When using the corn screening device, workers are required to manually pour the corn material to be screened into the corn screening device. This manual feeding method increases the labor intensity of the workers.

[0004] Therefore, how to reduce the labor intensity of workers when feeding the corn screening device is a technical problem that needs to be solved at present. Summary of the invention

[0005] The present invention aims at the above-mentioned deficiencies in the prior art and provides a corn screening device and a method of use. The present invention can realize mechanized feeding of the corn screening device and reduce the labor intensity of workers.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A corn screening device includes a wheel body, the end face of the wheel body is connected to the side of the screening device body, the wheel body is provided with a channel, the upper end of the channel penetrates to the side of the wheel body, and the lower end of the channel penetrates to the end face of the wheel body, a feed port is provided on the screening device body, the channel is arranged above the feed port, a feed pipe is provided on the side of the wheel body, a driving mechanism is provided on the end face of the wheel body away from the screening device body, the driving mechanism is used to drive the feed pipe to rotate around the side of the wheel body, and a bucket is provided on the feed pipe at one end away from the wheel body, and the bucket is connected to the feed pipe.

[0008] Furthermore, the driving mechanism includes a driving motor and a driving rod. The wheel body is provided with a driving motor in the middle of the end surface facing away from the screening device body. The output end of the driving motor is connected to one end of the driving rod. The driving rod is connected to the feed pipe at the end away from the driving motor.

[0009] Further, the feed pipe includes a first tube body and a second tube body, the second tube body is sleeved on the outside of the first tube body, the first tube body and the second tube body are slidably matched, the first tube body is slidably connected to the side of the wheel body at one end away from the second tube body, and the second tube body is provided with the bucket at one end away from the first tube body;

[0010] The driving rod includes an inner rod, a sleeve, and a reset elastic member. One end of the inner rod is connected to the output end of the driving motor, and the other end of the inner rod is sleeved with a sleeve. The sleeve is connected to the second tube body at the end away from the inner rod. One end of the reset elastic member is connected to the inner rod, and the other end of the reset elastic member is connected to the sleeve. The reset elastic member is used to push the sleeve to move along the direction in which the inner rod is away from the driving motor.

[0011] Furthermore, the wheel body is provided with an annular track on the end face away from the screening device body, and an annular groove is provided on the annular track. The first tube body is provided with a slide plate at one end away from the second tube body, and the slide plate is slidably matched with the annular groove.

[0012] Furthermore, the outer wall of the inner rod is provided with a first guide plate, the first guide plate is provided with a guide rod, the outer wall of the sleeve is provided with a second guide plate, the second guide plate is provided with a guide hole, the guide rod and the guide hole are slidably matched, and the reset elastic member adopts a reset spring, the reset spring is sleeved on the guide rod, one end of the reset spring is connected to the first guide plate, and the other end of the reset spring is connected to the second guide plate.

[0013] Furthermore, the wheel body is provided with a guide groove on the end face facing away from the screening device body, the guide groove includes an arc groove and an eccentric groove, the driving motor is provided at the center position of the arc groove, the lower part of the arc groove is connected with the eccentric groove, the groove walls on both sides of the eccentric groove are inclined, and the outer wall of the sleeve is provided with a guide pin, which cooperates with the guide groove.

[0014] Furthermore, the bucket is provided with an extension mechanism, which includes an extension base plate and an extension elastic member. A avoidance hole is provided at the bottom of the side wall of the bucket. The extension base plate is arranged inside the bucket, and one side of the extension base plate extends out from the avoidance hole. The extension base plate is slidably connected to the avoidance hole. The side of the extension base plate extending from the avoidance hole is connected to the side wall of the bucket through the extension elastic member. The extension elastic member is used to push the extension base plate to extend out from the inside of the bucket.

[0015] Furthermore, an extension seat is provided on the side wall of the bucket, an extension slide hole is provided on the extension seat, an extension cross bar is provided on the side of the extension base plate extending from the avoidance hole, the extension cross bar is slidably matched with the extension slide hole, and the extension elastic member adopts an extension spring, the extension spring is sleeved on the extension cross bar, one end of the extension spring is connected to the extension seat, and the other end of the extension spring is connected to the extension base plate.

[0016] Furthermore, the screening device body includes a casing, the top of the casing is provided with the feed port, the rear side of the casing is provided with the wheel body, the front side of the casing is provided with a first discharge port, the right side of the casing is provided with a second discharge port, the interior of the casing is provided with an inclined first filter basket, the high end of the first filter basket is arranged close to the wheel body, the low end of the first filter basket extends out from the first discharge port, and the left side of the casing is provided with a left and right vibration mechanism, which is used to drive the first filter basket to vibrate reciprocatingly in the left and right directions.

[0017] A method for using a corn screening device. Based on the corn screening device, the method includes the following steps: starting the driving mechanism, the driving mechanism drives the feed pipe to rotate around the side of the wheel body, the feed pipe drives the bucket to rotate together, the bucket scoops up corn materials piled on the ground during the rotation, and when the bucket rotates to the upper side of the wheel body, the corn materials in the bucket enter the interior of the screening device body through the feed pipe, the channel, and the feed port in sequence.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the invention, the wheel body, driving mechanism, feed pipe and bucket are arranged so that the drive mechanism can be used to drive the feed pipe and the bucket to rotate around the side of the wheel body. The bucket scoops up corn materials piled on the ground during the rotation. When the bucket rotates to the upper side of the wheel body, the corn materials in the bucket sequentially pass through the feed pipe, the channel and the feed port into the interior of the screening device body, thereby realizing the mechanized transportation of the corn materials into the screening device body. There is no need for workers to manually feed the materials, which is beneficial to reducing the labor intensity of the workers and also beneficial to improving the feeding efficiency.

[0020] 2. In the invention, the corn material is scooped up by a bucket. When the bucket rotates to the upper side of the wheel body, the corn material scooped up by the bucket flows through the feed pipe and the channel into the interior of the screening device body under the action of its own gravity. There is no need to use pumping equipment such as a grain pump, which can reduce the risk of blockage and improve the reliability of smooth feeding.

[0021] 3. In the invention, the wheel body is installed on the side of the screening device body. During the shoveling process, the feed pipe and the bucket rotate around the wheel body, which will not occupy the ground space and is conducive to improving space utilization.

[0022] 4. When the bucket rotates around the side of the wheel body to the bottom of the wheel body, the first tube body, the second tube body, the inner rod, the sleeve, and the reset elastic member are provided to allow the bucket to maintain contact with the ground, so that the bucket can shovel up the corn material closest to the ground, thereby being able to more thoroughly shovel up the corn material on the ground, reducing the dead angle of shoveling, improving the shoveling effect of the corn material piled on the ground, and reducing waste.

[0023] 5. Because the bucket can scoop up the corn material closest to the ground, the upper corn material in the corn material pile can flow downward to fill the position of the corn material that has been shoveled away on the ground, so that the bucket can shovel material again, which can reduce the number of times the entire device is moved and improve the convenience of use.

[0024] 6. When the second tube body slides relative to the first tube body, since the first tube body is located inside the second tube body, the tube wall of the first tube body can push the corn cob stuck in the second tube body to prevent the corn cob in the corn material from blocking the second tube body, thereby achieving dredging of the second tube body and improving the reliability of smoothly feeding the corn material into the screening device body.

[0025] 7. By setting the arc groove, eccentric groove and guide pin, the rotation range of the bucket can be adjusted when the bucket rotates around the side of the wheel body. When the guide pin is located in the eccentric groove, the bucket rotates at the lower side of the wheel body, which can increase the rotation range of the bucket, so that the bucket can approach the ground and slide against the ground, ensuring that the bucket can shovel up the corn material closest to the ground, ensuring the shoveling effect of the corn material piled on the ground, and ensuring the saving effect.

[0026] 8. When the guide pin slides in the arc groove, the bucket rotates on the upper side of the wheel body, and the bucket is at the closest distance to the wheel body, which can reduce the rotation range of the bucket, increase the distance between the bucket and nearby workers, and improve safety in use.

[0027] 9. When the guide pin is located in the arc groove and slides, because the bucket is at the position closest to the wheel body, the distance between the bucket and the side of the wheel body can be shortened, so that the corn material in the bucket can pass through the second tube body and the first tube body more quickly into the channel, which is beneficial to improve the feeding efficiency.

[0028] 10. By setting up an extension mechanism, the extended bottom plate in the extension mechanism can be used to increase the contact area between the bucket and the corn material pile, so that more corn materials can be scooped up at one time, so as to increase the amount of material fed into the screening device body each time, which is beneficial to improving the feeding efficiency.

[0029] 11. Because the extended bottom plate in the extension mechanism can increase the contact area between the bucket and the corn material pile, it can contact the corn material pile at a deeper level, so that the corn material pile can be loosened at a deeper level, so that the corn material on the upper part can flow downward to fill the position of the shoveled corn material so as to shovel material again. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A three-dimensional view of a corn screening device according to Example 1 Figure 1 ;

[0031] Figure 2 A three-dimensional view of a corn screening device according to Example 1 Figure 2 ;

[0032] Figure 3 It is a stereoscopic diagram of a corn screening device after removing the protective cover of Example 1;

[0033] Figure 4 This is a three-dimensional diagram of a corn screening device after the casing of Example 1 is cut open;

[0034] Figure 5 for Figure 4 A three-dimensional view after adding a second filter basket;

[0035] Figure 6 A three-dimensional view of a corn screening device according to Example 3 Figure 1 ;

[0036] Figure 7 A three-dimensional view of a corn screening device according to Example 3 Figure 2 ;

[0037] Figure 8 It is a right side view of a corn screening device of Example 3;

[0038] Fig. 9 This is a three-dimensional diagram of a corn screening device according to Example 4;

[0039] Fig.10 This is a rear view of a corn screening device according to Example 4;

[0040] Fig.11 A three-dimensional view of a corn screening device according to Example 5 Figure 1 ;

[0041] Fig.12 A three-dimensional view of a corn screening device according to Example 5 Figure 2 ;

[0042] Fig.13 A three-dimensional view of the bucket of Example 5 with an additional extension mechanism;

[0043] Fig.14 This is a rear view of a corn screening device in Example 5.

[0044] Description of reference numerals:

[0045] 11- housing, 111- feed port, 112- first discharge port, 113- second discharge port, 114- third discharge port, 12- first filter basket, 13- second filter basket, 14- linkage rod,

[0046] 2-wheel body, 21-channel, 22-annular track, 221-annular groove, 23-arc groove, 24-eccentric groove,

[0047] 3-feeding pipe, 31-first tube body, 311-slide plate, 32-second tube body,

[0048] 4-bucket, 41-avoidance hole,

[0049] 51-driving motor, 52-driving rod, 521-inner rod, 522-sleeve, 523-reset spring, 524-first guide plate, 525-guide rod, 526-second guide plate, 527-stop block, 528-guide pin,

[0050] 61-vibration support, 62-vibration shaft, 63-vibration motor, 64-cam, 65-vibration frame, 66-vibration rod, 67-support rod, 68-support sleeve, 69-protection cover,

[0051] 71-extension base plate, 72-extension seat, 73-extension cross bar, 731-limiting block, 74-extension spring. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] Embodiment 1:

[0054] See also Figure 1 A corn screening device comprises a screening device body, and a feed port 111 is provided on the top of the screening device body.

[0055] See also Figure 1 In this embodiment 1, it also includes a wheel body 2, the front end face of the wheel body 2 is fixedly installed on the rear side of the screening device body, and a channel 21 is provided on the wheel body 2. The upper end of the channel 21 penetrates the side of the wheel body 2, and the lower end of the channel 21 penetrates the front end face of the wheel body 2. The channel 21 is arranged above the feed port 111.

[0056] See also Figure 2 A feed pipe 3 is provided on the side of the wheel body 2. A bucket 4 is provided at one end of the feed pipe 3 away from the wheel body 2. The bucket 4 is connected to the feed pipe 3. The bucket 4 and the feed pipe 3 are an integrated structure.

[0057] See also Figure 2The rear end face of the wheel body 2 is provided with a driving mechanism, and the driving mechanism is used to drive the feed pipe 3 to rotate around the side of the wheel body 2. In this embodiment 1, the driving mechanism includes a driving motor 51 and a driving rod 52. The driving motor 51 is fixedly mounted in the middle of the rear end face of the wheel body 2, the output end of the driving motor 51 is fixedly connected to one end of the driving rod 52, and the driving rod 52 is fixedly connected to the side wall of the feed pipe 3 at the end away from the driving motor 51.

[0058] The method of use of this embodiment 1 is as follows:

[0059] Start the drive motor 51, the output end of the drive motor 51 drives the drive rod 52 to rotate, the drive rod 52 drives the feed pipe 3 to rotate, the feed pipe 3 rotates around the side of the wheel body 2, the feed pipe 3 drives the bucket 4 to rotate around the side of the wheel body 2, the bucket 4 scoops up the corn material piled on the ground during the rotation, when the bucket 4 rotates to the upper side of the wheel body 2, the corn material in the bucket 4 slides into the interior of the screening device body through the feed pipe 3, the channel 21, and the feed port 111 in sequence under the action of its own gravity.

[0060] If the bucket 4 cannot scoop up the corn material currently on the ground, the entire device can be moved to make the entire device closer to the corn material so that the bucket 4 can continue to scoop up the corn material and feed it into the interior of the screening device body.

[0061] Through the above-mentioned usage method, it can be known that the present embodiment 1 has the following effects:

[0062] In this embodiment 1, the arrangement of the wheel body 2, the driving mechanism, the feed pipe 3, and the bucket 4 realizes the mechanized transportation of the corn material into the screening device body, without the need for workers to manually feed the material, which is beneficial to reducing the labor intensity of the workers and also beneficial to improving the feeding efficiency.

[0063] In this embodiment 1, the corn material is scooped up by the bucket 4. When the bucket 4 rotates to the upper side of the wheel body 2, the corn material scooped up by the bucket 4 flows through the feed pipe 3 and the channel 21 under the action of its own gravity and enters the interior of the screening device body. There is no need to use pumping equipment such as a grain pump, which can reduce the risk of blockage and improve the reliability of smooth feeding.

[0064] In this embodiment 1, the wheel body 2 is installed on the side of the screening device body. During the shoveling process, the feed pipe 3 and the bucket 4 rotate around the wheel body 2, which will not occupy the ground space and is conducive to improving space utilization.

[0065] Embodiment 2:

[0066] See also Figure 1In a corn screening device of the present embodiment 2, the screening device body includes a housing 11 and a first filter basket 12. A feed port 111 is provided at the top rear side of the housing 11, a wheel body 2 is fixedly mounted at the rear side of the housing 11, a first discharge port 112 is provided at the front side of the housing 11, and a second discharge port 113 is provided at the right side of the housing 11. An inclined first filter basket 12 is provided inside the housing 11, a high end of the first filter basket 12 is provided close to the wheel body 2, and a low end of the first filter basket 12 extends from the first discharge port 112.

[0067] See also Figure 3 and Figure 4 , a left-right vibration mechanism is provided on the left side of the casing 11, and the left-right vibration mechanism is used to drive the first filter basket 12 to vibrate back and forth in the left and right directions. The left-right vibration mechanism includes a vibration support 61, a vibration shaft 62, a vibration motor 63, a cam 64, a vibration frame 65, a vibration rod 66, a support rod 67, and a support sleeve 68. Two vibration supports 61 are provided side by side, and the two vibration supports 61 are fixedly mounted on the left side wall of the casing 11. The vibration shaft 62 is provided between the two vibration supports 61, and both ends of the vibration shaft 62 are rotatably connected to the vibration supports 61 through bearings. The vibration motor 63 is fixedly mounted on a vibration support 61, and the output end of the vibration motor 63 is fixedly connected to one end of the vibration shaft 62. The cam 64 is fixedly mounted on the vibration shaft 62. The vibration frame 65 is sleeved on the outside of the cam 64. The left end of the vibration rod 66 is fixedly connected to the outer side wall of the vibration frame 65, the right end of the vibration rod 66 penetrates the left side wall of the housing 11, the vibration rod 66 is slidably connected to the left side wall of the housing 11, and the right end of the vibration rod 66 entering the interior of the housing 11 is fixedly connected to the side wall of the first filter basket 12. The support rod 67 is fixedly installed inside the housing 11, the support rod 67 extends in a left-right straight direction, and a support sleeve 68 is sleeved on the support rod 67, and the support sleeve 68 is fixedly installed at the bottom of the first filter basket 12.

[0068] The working principle of this embodiment 2 is as follows:

[0069] When the corn material enters the housing 11 from the feed port 111, the corn material falls into the first filter basket 12, the vibration motor 63 is started, the vibration motor 63 drives the vibration shaft 62 to rotate, and the vibration shaft 62 drives the cam 64 to rotate together. When the distal end of the cam 64 contacts the left side wall of the vibration frame 65, the vibration frame 65 is pushed to the left by the cam 64, and when the distal end of the cam 64 contacts the right side wall of the vibration frame 65, the vibration frame 65 is pushed to the right by the cam 64. Every time the cam 64 rotates one circle, the vibration frame 65 reciprocates left and right once.

[0070] The vibration frame 65 drives the first filter basket 12 to move back and forth together through the vibration rod 66. When the first filter basket 12 moves back and forth, the support sleeve 68 at the bottom of the first filter basket 12 slides back and forth on the support rod 67. The corn material in the first filter basket 12 is vibrated. After passing through the first filter basket 12, the corn particles in the corn material are discharged from the second discharge port 113, and the corn cobs in the corn material are intercepted by the first filter basket 12. As the first filter basket 12 vibrates, the corn cobs on the first filter basket 12 move toward the lower end of the first filter basket 12 with the vibration until the corn cobs are discharged from the first discharge port 112.

[0071] From the above working principle, it can be seen that the second embodiment has the following effects:

[0072] The left-right vibration mechanism can drive the first filter basket 12 to reciprocate in the left-right direction, so that the corn material in the first filter basket 12 is reciprocated in the left-right direction, and the corn cobs and corn particles in the corn material are screened under the vibration.

[0073] For further information, see Figure 1 The left and right vibration mechanisms further include a protective cover 69, which is fixedly mounted on the left side wall of the housing 11. The vibration support 61, the vibration shaft 62, the vibration motor 63, the cam 64, the vibration frame 65, and the vibration rod 66 are all arranged inside the protective cover 69. The setting of the protective cover 69 can protect the structure located outside the housing 11, prevent the workers' clothes from being involved in the left and right vibration mechanisms, and improve the safety of operation.

[0074] For further information, see Figure 5 A third discharge port 114 is provided on the front side of the casing 11, and the third discharge port 114 is provided below the first discharge port 112. A second filter basket 13 is also provided inside the casing 11, and the second filter basket 13 is used to separate corn particles and dust debris. The second filter basket 13 is provided below the first filter basket 12, and the second filter basket 13 is inclined. The inclination direction of the second filter basket 13 is the same as that of the first filter basket 12. A linkage rod 14 is fixedly installed on the side wall of the second filter basket 13, and the top of the linkage rod 14 is fixedly installed on the bottom of the first filter basket 12.

[0075] When the left and right vibration mechanism drives the first filter basket 12 to vibrate back and forth, the first filter basket 12 drives the second filter basket 13 to vibrate back and forth through the linkage rod 14. The first filter basket 12 vibrates to separate the corn cobs and corn particles in the corn material. The corn cobs are discharged from the first discharge port 112, and the corn particles fall into the second filter basket 13. The corn particles are discharged from the third discharge port 114, and the dust and debris in the corn particles pass through the filter holes of the second filter basket 13 and are discharged from the second discharge port 113.

[0076] By adding the second filter basket 13 and the linkage rod 14, the corn cobs, corn particles and dust debris in the corn material can be separated together with the first filter basket 12, thereby further improving the screening effect.

[0077] Embodiment 3:

[0078] See also Figure 6 , Figure 7 and Figure 8 In a corn screening device of the present embodiment 3, a ring track 22 is provided on the end surface of the wheel body 2 which faces away from the screening device body, and a ring groove 221 is provided on the ring track 22.

[0079] See also Figure 6 and Figure 8 The feed pipe 3 includes a first tube body 31 and a second tube body 32. The second tube body 32 is sleeved on the outside of the first tube body 31. The first tube body 31 and the second tube body 32 are slidably matched. A slide plate 311 is fixedly installed at the end of the first tube body 31 away from the second tube body 32. The slide plate 311 is slidably matched with the annular groove 221. The second tube body 32 is provided with a bucket 4 at the end away from the first tube body 31. The bucket 4 and the second tube body 32 are an integral structure.

[0080] See also Figure 6 and Figure 8 The driving rod 52 includes an inner rod 521, a sleeve 522, a first guide plate 524, a guide rod 525, a second guide plate 526, a stop block 527, and a reset elastic member. One end of the inner rod 521 is fixedly connected to the output end of the driving motor 51, and the other end of the inner rod 521 is sleeved with a sleeve 522, and the sleeve 522 is fixedly connected to the second tube body 32 at the end away from the inner rod 521. The outer wall of the inner rod 521 is fixedly mounted with a first guide plate 524, and the first guide plate 524 is fixedly mounted with a guide rod 525. The outer wall of the sleeve 522 is fixedly mounted with a second guide plate 526, and the second guide plate 526 is provided with a guide hole, and the guide rod 525 is slidably matched with the guide hole. A stop block 527 is fixedly mounted on the bottom end of the guide rod 525, and the stop block 527 is used to prevent the guide rod 525 from completely disengaging from the guide hole. The reset elastic member adopts a reset spring 523, which is sleeved on the guide rod 525. One end of the reset spring 523 abuts against the first guide plate 524, and the other end of the reset spring 523 abuts against the second guide plate 526. The reset spring 523 is used to push the sleeve 522 to move along the direction of the inner rod 521 away from the driving motor 51.

[0081] The working principle of this embodiment 3 is as follows:

[0082] When the driving motor 51 drives the inner rod 521 to rotate, the inner rod 521 pushes the inner wall of the sleeve 522, so that the inner rod 521 drives the sleeve 522 to rotate together, and the sleeve 522 drives the second tube body 32 to rotate around the side of the wheel body 2. The second tube body 32 pushes the outer wall of the first tube body 31, so that the second tube body 32 drives the first tube body 31 to rotate around the side of the wheel body 2. The first tube body 31 drives the slide plate 311 to rotate around the side of the wheel body 2. The slide plate 311 slides in the annular groove 221, and the second tube body 32 drives the bucket 4 to rotate around the side of the wheel body 2.

[0083] As the bucket 4 rotates downward around the side of the wheel body 2, the bucket 4 gradually approaches the ground. When the bucket 4 contacts the ground, the bucket 4 drives the second tube 32 to move along the direction of the first tube 31 approaching the wheel body 2, and the second tube 32 drives the sleeve 522 to move along the direction of the inner rod 521 approaching the drive motor 51, so that the return spring 523 is gradually compressed. As the bucket 4 continues to rotate around the side of the wheel body 2, the bucket 4 maintains contact with the ground and slides over the ground, so that the bucket 4 scoops up the corn material closest to the ground.

[0084] When the bucket 4 rotates upward around the side of the wheel body 2, the bucket 4 leaves the ground, the return spring 523 stretches, and the elastic force of the return spring 523 pushes the sleeve 522 to move along the inner rod 521 in the direction away from the drive motor 51. The sleeve 522 drives the second tube 32 to move along the first tube 31 in the direction away from the wheel body 2, so that the length of the feed pipe 3 and the drive rod 52 is restored. When the bucket 4 rotates to the upper side of the wheel body 2, the corn material in the bucket 4 slides into the interior of the screening device body through the second tube 32, the first tube 31, the channel 21, and the feed port 111 in sequence under the action of gravity.

[0085] From the above working principle, it can be seen that the present embodiment 3 has the following effects:

[0086] In this embodiment 3, when the bucket 4 rotates around the side of the wheel body 2 to the bottom of the wheel body 2, the first tube body 31, the second tube body 32, the inner rod 521, the sleeve 522, and the reset elastic member are provided to allow the bucket 4 to maintain contact with the ground, so that the bucket 4 can shovel up the corn material closest to the ground, thereby being able to more thoroughly shovel up the corn material on the ground, reducing the dead angle of shoveling, improving the shoveling effect of the corn material piled on the ground, and reducing waste.

[0087] In this embodiment 3, because the bucket 4 can shovel up the corn material closest to the ground, the upper layer of corn material in the corn material pile can flow downward to fill the position of the corn material that has been shoveled away on the ground, so that the bucket 4 can shovel material again, which can reduce the number of times the entire device is moved and improve ease of use.

[0088] In the present embodiment 3, when the second tube body 32 slides relative to the first tube body 31, since the first tube body 31 is located inside the second tube body 32, the tube wall of the first tube body 31 can push the corn cob stuck in the second tube body 32, preventing the corn cob in the corn material from blocking the second tube body 32, thereby achieving the unblocking of the second tube body 32 and improving the reliability of smoothly feeding the corn material into the screening device body.

[0089] In the present embodiment 3, the arrangement of the first guide plate 524, the second guide plate 526, the guide rod 525 and the guide hole can guide the return spring 523 sleeved on the guide rod 525 to deform along the axial direction, thereby improving the stability of the return spring 523 when deforming.

[0090] In this embodiment 3, the setting of the annular track 22, the annular groove 221, and the slide plate 311 can allow the first tube body 31 to maintain sliding contact with the side of the wheel body 2, prevent the first tube body 31 from leaving the side of the wheel body 2, and ensure that the corn material smoothly enters the channel 21 on the wheel body 2.

[0091] Embodiment 4:

[0092] See also Fig. 9 and Fig.10 This embodiment 4 is further improved on the basis of embodiment 3: a guide groove is provided on the rear end face of the wheel body 2, and the guide groove includes an arc groove 23 and an eccentric groove 24. A driving motor 51 is fixedly installed at the center position of the arc groove 23, and the lower part of the arc groove 23 is connected to the eccentric groove 24. The groove walls on both sides of the eccentric groove 24 are inclined, and a guide pin 528 is fixedly installed on the outer wall of the sleeve 522, and the guide pin 528 cooperates with the guide groove.

[0093] The working principle of this embodiment 4 is as follows:

[0094] When the driving motor 51 drives the inner rod 521 to rotate, the inner rod 521 drives the sleeve 522 to rotate together. On the one hand, the sleeve 522 drives the guide pin 528 to rotate together, and the guide pin 528 slides in the guide groove; on the other hand, the sleeve 522 drives the second tube 32 to rotate around the side of the wheel body 2, the second tube 32 drives the first tube 31 to rotate around the side of the wheel body 2, and the second tube 32 drives the bucket 4 to rotate around the side of the wheel body 2.

[0095] When the guide pin 528 slides in the arc groove 23 of the guide groove, the sleeve 522 fixedly installed with the guide pin 528 is in the position closest to the drive motor 51, the return spring 523 is in the state of maximum compression, and the sleeve 522 pulls the second tube body 32 to be in the state closest to the side of the wheel body 2. The bucket 4 located at the end of the second tube body 32 is also in the state closest to the side of the wheel body 2. At this time, the range of rotation of the bucket 4 around the wheel body 2 is the smallest.

[0096] When the guide pin 528 enters the eccentric groove 24 from the arc groove 23, the radial movable range of the guide pin 528 increases, and the return spring 523 has space to stretch. The return spring 523 can push the sleeve 522 to move along the inner rod 521 away from the drive motor 51, and the sleeve 522 pushes the second tube body 32 to move away from the side of the wheel body 2. The second tube body 32 drives the bucket 4 to move away from the side of the wheel body 2, and the bucket 4 gradually approaches the ground.

[0097] When the bucket 4 contacts the ground, the bucket 4 drives the second tube 32 to move toward the wheel body 2, and the second tube 32 drives the sleeve 522 to move toward the drive motor 51, so that the return spring 523 is gradually compressed. As the bucket 4 continues to rotate downward around the side of the wheel body 2, the bucket 4 maintains contact with the ground and can scoop up the bottom layer of corn materials accumulated on the ground.

[0098] As the driving motor 51 drives the inner rod 521 to continue to rotate upward, the inner rod 521 drives the sleeve 522 to rotate upward, and the sleeve 522 drives the guide pin 528 to rotate upward. When the guide pin 528 rotates upward, the inclined groove wall of the eccentric groove 24 has a radial component of force on the guide pin 528, so that the guide pin 528 overcomes the elastic force of the return spring 523 and gradually slides from the eccentric groove 24 into the arc groove 23, so that the sleeve 522 is in the position closest to the driving motor 51, and the sleeve 522 pulls the second tube body 32 to be in a state closest to the side of the wheel body 2, and the bucket 4 located at the end of the second tube body 32 is also in a state closest to the side of the wheel body 2.

[0099] From the above working principle, it can be seen that the present embodiment 4 has the following effects:

[0100] In this embodiment 4, by providing the arc groove 23, the eccentric groove 24, and the guide pin 528, the rotation range of the bucket 4 can be adjusted when the bucket 4 rotates around the side of the wheel body 2. When the guide pin 528 is located in the eccentric groove 24, the bucket 4 is located at the lower side of the wheel body 2 and rotates, which can increase the rotation range of the bucket 4, so that the bucket 4 can approach the ground and slide against the ground, ensuring that the bucket 4 can shovel up the corn material closest to the ground, ensuring the shoveling effect of the corn material piled on the ground, and ensuring the saving effect.

[0101] In this embodiment 4, when the guide pin 528 is located in the arc groove 23 and slides, the bucket 4 is located on the upper side of the wheel body 2 and rotates. The bucket 4 is at the closest distance to the wheel body 2, which can reduce the rotation range of the bucket 4, increase the distance between the bucket 4 and nearby workers, and improve safety of use.

[0102] In this embodiment 4, when the guide pin 528 is located in the arc groove 23 and slides, because the bucket 4 is at the position closest to the wheel body 2, the distance between the bucket 4 and the side of the wheel body 2 can be shortened, allowing the corn material in the bucket 4 to pass through the second tube body 32 and the first tube body 31 more quickly into the channel 21, which is beneficial to improving the feeding efficiency.

[0103] Embodiment 5:

[0104] See also Fig.11 , Fig.12 , Fig.13 , Fig.14 In a corn screening device of the present embodiment 5, an extension mechanism is provided on the bucket 4. The extension mechanism comprises an extension bottom plate 71, an extension seat 72, an extension cross bar 73 and an extension elastic member.

[0105] See also Fig.13 A position avoiding hole 41 is provided at the bottom of the side wall of the bucket 4, an extension bottom plate 71 is provided inside the bucket 4, one side of the extension bottom plate 71 extends out from the position avoiding hole 41, and the extension bottom plate 71 is horizontally slidably connected to the position avoiding hole 41.

[0106] See also Fig.13 An extension seat 72 is fixedly installed at the bottom of the side wall of the bucket 4, and an extension slide hole is provided on the extension seat 72. An extension cross bar 73 is fixedly installed on the side of the extension bottom plate 71 extending from the avoidance hole 41, and the extension cross bar 73 is horizontally slidably matched with the extension slide hole. A limit block 731 is fixedly installed at the end of the extension cross bar 73 away from the extension bottom plate 71, and the limit block 731 is used to prevent the extension cross bar 73 from completely sliding out of the extension slide hole.

[0107] See also Fig.13 The extension elastic member adopts an extension spring 74, which is sleeved on the extension cross bar 73, one end of the extension spring 74 abuts against the extension seat 72, and the other end of the extension spring 74 abuts against the extension bottom plate 71. The extension spring 74 is used to push the extension bottom plate 71 to extend horizontally from the inside of the bucket 4.

[0108] The working principle of this embodiment 5 is as follows:

[0109] When the bucket 4 and the extension bottom plate 71 have not yet contacted the ground, the extension spring 74 is in an extended state, and the extension spring 74 pushes the extension bottom plate 71 to extend out from the inside of the bucket 4 .

[0110] When the bucket 4 approaches the ground, the extension base plate 71 contacts the ground one step ahead of the bucket 4. As the driving mechanism drives the bucket 4 to rotate around the wheel body 2, the extension base plate 71 overcomes the elastic force of the extension spring 74 and slides into the interior of the bucket 4.

[0111] As the bucket 4 continues to rotate downward around the side of the wheel body 2, the bucket 4 pushes the second tube 32 to move toward the side of the wheel body 2. At the same time, the extended bottom plate 71 scoops up the corn materials piled on the ground.

[0112] When the bottom surface of the bucket 4 is completely in contact with the ground, the bottom surface of the bucket 4 is in a horizontal state, and the extended bottom plate 71 is also in a horizontal state. The extended bottom plate 71 is no longer in contact with the ground. At this time, the extended bottom plate 71 extends from the inside of the bucket 4, and the extended bottom plate 71 extending from the inside of the bucket 4 can be inserted deeper into the corn material pile. When the bucket 4 drives the extended bottom plate 71 to rotate upward, more corn material can be shoveled up, increasing the amount of material shoveled at one time. In addition, the extended bottom plate 71 can contact the corn material pile at a deeper level, so that the corn material pile is loosened at a deeper level, so that the corn material on the upper part can flow downward to fill the position of the shoveled corn material, so as to shovel material again.

[0113] When the bucket 4 rotates upward around the wheel body 2, the bucket 4 gradually leaves the ground, and the corn material on the extended bottom plate 71 slides into the interior of the bucket 4. The corn material entering the bucket 4 passes through the feed pipe 3, the channel 21, and the feed port 111 in turn and enters the interior of the screening device body.

[0114] From the above working principle, it can be seen that the present embodiment 5 has the following effects:

[0115] In this embodiment 5, by setting up an extension mechanism, the extension bottom plate 71 in the extension mechanism can be used to increase the contact area between the bucket 4 and the corn material pile, so that more corn materials can be scooped up at one time, so as to increase the amount of material fed into the screening device body each time, which is beneficial to improving the feeding efficiency.

[0116] In this embodiment 5, because the extended bottom plate 71 in the extension mechanism can increase the contact area between the bucket 4 and the corn material pile, it can contact the corn material pile at a deeper level, so that the corn material pile can be loosened at a deeper level, and the corn material on the upper part can flow downward to fill the position of the shoveled corn material so as to shovel material again.

[0117] In the present embodiment 5, the provision of the extension seat 72 , the extension sliding hole, and the extension cross bar 73 can guide the deformation direction of the extension spring 74 , allowing the extension spring 74 to be compressed and deformed along the axial direction, thereby improving the deformation stability of the extension spring 74 .

[0118] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A corn screening device, comprising a screening device body, wherein the screening device body is provided with a feed inlet, characterized in that: It also includes a wheel body, the end face of the wheel body is connected to the side of the screening device body, a channel is provided on the wheel body, the upper end of the channel penetrates the side of the wheel body, the lower end of the channel penetrates the end face of the wheel body, the channel is arranged above the feed port, a feed pipe is arranged on the side of the wheel body, a driving mechanism is arranged on the end face of the wheel body away from the screening device body, the driving mechanism is used to drive the feed pipe to rotate around the side of the wheel body, and a bucket is arranged on the end of the feed pipe away from the wheel body, and the bucket is connected to the feed pipe; The feed pipe comprises a first tube body and a second tube body, the second tube body is sleeved on the outside of the first tube body, the first tube body and the second tube body are slidably matched, the first tube body is slidably connected to the side of the wheel body at one end away from the second tube body, and the second tube body is provided with the bucket at one end away from the first tube body; The driving mechanism comprises a driving motor and a driving rod. The wheel body is provided with a driving motor at the middle of the end surface away from the screening device body. The driving rod comprises an inner rod, a sleeve, and a reset elastic member. One end of the inner rod is connected to the output end of the driving motor. The other end of the inner rod is sleeved with a sleeve. The sleeve is connected to the second tube body at the end away from the inner rod. One end of the reset elastic member is connected to the inner rod. The other end of the reset elastic member is connected to the sleeve. The reset elastic member is used to push the sleeve to move along the direction in which the inner rod is away from the driving motor. The wheel body is provided with a guide groove on the end face away from the screening device body, the guide groove includes an arc groove and an eccentric groove, the driving motor is provided at the center of the arc groove, the lower part of the arc groove is connected with the eccentric groove, the groove walls on both sides of the eccentric groove are inclined, and the outer wall of the sleeve is provided with a guide pin, which cooperates with the guide groove; When the guide pin enters the eccentric groove from the arc groove, the radial movable range of the guide pin increases, the reset elastic member has space to stretch, the reset elastic member can push the sleeve to move along the direction of the inner rod away from the drive motor, the sleeve pushes the second tube body to move away from the side of the wheel body, the second tube body drives the bucket to move away from the side of the wheel body, and the bucket gradually approaches the ground.

2. A corn screening device as claimed in claim 1, characterized in that: The wheel body is provided with an annular track at the end face away from the screening device body, and an annular groove is provided on the annular track. The first tube body is provided with a slide plate at one end away from the second tube body, and the slide plate is slidably matched with the annular groove.

3. A corn screening device as claimed in claim 1, characterized in that: The outer wall of the inner rod is provided with a first guide plate, the first guide plate is provided with a guide rod, the outer wall of the sleeve is provided with a second guide plate, the second guide plate is provided with a guide hole, the guide rod and the guide hole are slidably matched, the reset elastic member adopts a reset spring, the reset spring is sleeved on the guide rod, one end of the reset spring is connected to the first guide plate, and the other end of the reset spring is connected to the second guide plate.

4. A corn screening device as claimed in claim 1, characterized in that: The bucket is provided with an extension mechanism, which includes an extension base plate and an extension elastic member. A avoidance hole is provided at the bottom of the side wall of the bucket. The extension base plate is arranged inside the bucket, and one side of the extension base plate extends out from the avoidance hole. The extension base plate is slidably connected to the avoidance hole. The side of the extension base plate extending out of the avoidance hole is connected to the side wall of the bucket through the extension elastic member. The extension elastic member is used to push the extension base plate to extend out from the inside of the bucket.

5. A corn screening device as claimed in claim 4, characterized in that: An extension seat is provided on the side wall of the bucket, an extension slide hole is provided on the extension seat, an extension cross bar is provided on the side of the extension base plate extending from the avoidance hole, the extension cross bar is slidably matched with the extension slide hole, the extension elastic member adopts an extension spring, the extension spring is sleeved on the extension cross bar, one end of the extension spring is connected to the extension seat, and the other end of the extension spring is connected to the extension base plate.

6. A corn screening device as claimed in claim 1, characterized in that: The screening device body includes a casing, the top of the casing is provided with the feed port, the rear side of the casing is provided with the wheel body, the front side of the casing is provided with a first discharge port, the right side of the casing is provided with a second discharge port, the interior of the casing is provided with an inclined first filter basket, the high end of the first filter basket is arranged close to the wheel body, the low end of the first filter basket extends out from the first discharge port, and the left side of the casing is provided with a left-right vibration mechanism, which is used to drive the first filter basket to vibrate reciprocatingly in the left-right direction.

7. A method for using a corn screening device, characterized in that: Based on a corn screening device as described in any one of claims 1 to 6, the method of use includes the following steps: starting the driving mechanism, the driving mechanism drives the feed pipe to rotate around the side of the wheel body, the feed pipe drives the bucket to rotate together, the bucket scoops up corn materials piled on the ground during the rotation process, and when the bucket rotates to the upper side of the wheel body, the corn materials in the bucket enter the interior of the screening device body through the feed pipe, the channel, and the feed port in sequence.

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