Material conveyor for primary processing of agricultural products

Abstract

The invention discloses a material conveyor for primary processing of agricultural products, and relates to the technical field of material conveying. The problems of material loss, material accumulation, inconvenience in material recovery and the like existing in traditional material conveying equipment are solved, impact during material falling can be effectively relieved by arranging the functions of a shielding falling cover, a material conveying belt, material recovery and a differential control electromagnet, the material recovery rate is increased, the material accumulation is prevented from being too high, and the material conveying efficiency is improved. The material conveying efficiency is improved, the equipment loss is reduced, and the material utilization rate is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of material conveying, in particular to a material conveyor for primary processing of agricultural products. Background Art

[0002] At present, the common material conveying systems in the primary processing of agricultural products mostly use traditional conveyor belts or screw conveying equipment. Although these devices can complete the material transportation task to a certain extent, they also have some significant disadvantages. First, the traditional conveyor belt system is prone to material breakage and loss during the falling process of the material. Secondly, the traditional system lacks effective buffering devices in the process of materials from one conveying point to another. Especially for high-drop transportation tasks, the materials may be impacted, resulting in quality degradation. In addition, during the material transportation process, the materials are easy to slip to the outside of the conveyor belt due to mechanical vibration. Due to the lack of material recovery design, materials are wasted, especially in the process of material accumulation, and these materials are often unable to be effectively recovered and reused. Summary of the invention

[0003] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: a material conveyor for primary processing of agricultural products, comprising a shielding drop cover, an opening is provided at the bottom of the shielding drop cover, a feed belt is provided below the opening, and the distance between the upper surface of the feed belt and the bottom opening of the shielding drop cover can be adjusted; feed baffles are provided on both sides of the feed belt, and belt drive rollers are rotatably installed at both ends between the opposite surfaces of the two feed baffles, wherein the two belt drive rollers are synchronously driven by the feed belt, and a belt support plate is also fixed between the two feed baffles, and the belt support plate is used to support the feed belt, wherein the belt support plate does not pass under the bottom opening of the shielding drop cover, and the elasticity of the feed belt itself is used to buffer the falling of the material, and a downwardly inclined bend is provided at one end of the belt support plate close to the shielding drop cover; an auxiliary triangular bevel is provided on the upper surface of the feed belt, and the auxiliary triangular bevel is provided in a closed position, so that the material falling out of the shielding drop cover can slide onto the feed belt, thereby preventing the material from accumulating at the right angle between the feed belt and the feed baffle.

[0004] Preferably, a partition is fixedly covered on the falling shielding cover, a lower hopper is arranged above the partition, the falling shielding cover and the lower hopper are connected by a conveying channel tube, and the falling shielding cover, the conveying channel tube and the lower hopper are coaxially arranged, and a feeding assembly is rotatably arranged inside the conveying channel tube.

[0005] Preferably, the feeding assembly includes a bottom rotating column and a top rotating column, and the bottom spiral sheet and the top spiral sheet are respectively fixed around the outer surface of the bottom rotating column and the top rotating column. The bottom spiral sheet and the top spiral sheet can be combined into a complete spiral plate, and the opposite sides of the bottom spiral sheet and the top spiral sheet adopt a sliding matching method.

[0006] Preferably, spline holes are provided at the axis centers of the bottom rotating column and the top rotating column, and spline cylindrical shafts are slidably arranged in the two spline holes by means of splines. A magnetic traction block is fixed to the top of the spline cylindrical shaft, and the spline cylindrical shaft rotates and slides at the axis center to cooperate with the center rod shaft, and the bottom end of the center rod shaft is fixedly matched with the bottom rotating column.

[0007] Preferably, an embedded groove is also provided in the top rotating column, and the embedded groove is located at the top of the spline hole provided in the top rotating column. The inner wall of the embedded groove slides with the magnetic traction block, and an auxiliary electromagnet is provided above the embedded groove, and the auxiliary electromagnet is embedded inside the top rotating column.

[0008] Preferably, a return spring is fixedly arranged between the top of the inner wall of the embedded groove and the top end of the spline cylinder shaft, and the return spring is arranged around the outside of the central rod shaft, and the central rod shaft is rotationally matched with the top rotating column.

[0009] Preferably, a crossbeam frame is fixed to the top edge of the lower hopper, and a feeding transmission column is rotatably mounted on the crossbeam frame, the feeding transmission column is fixedly matched with the top of the top rotating column, and the feeding transmission column is rotatably matched with the center rod shaft, and the top of the center rod shaft extends to above the top of the feeding transmission column; a differential gear ring is rotatably mounted on the crossbeam frame, the differential gear ring is fixedly matched with the top of the feeding transmission column, and a differential center gear fixed to the top of the center rod shaft is rotatably provided at the center position of the differential gear ring, and the differential center gear and the inner ring teeth of the differential gear ring are meshed and driven through three differential planetary gears, and the three differential planetary gears are rotatably mounted on the differential magnetic planetary frame.

[0010] Preferably, the differential magnetic planetary carrier is rotatably mounted on the differential control electromagnet bracket, the differential control electromagnet bracket is fixed on the crossbeam frame, the differential control electromagnet bracket is also fixed with a differential control electromagnet that magnetically cooperates with the differential magnetic planetary carrier, the crossbeam frame is also fixed with a drive motor, and the output shaft of the drive motor is connected to the differential gear ring through a transmission belt.

[0011] Preferably, an arc-shaped baffle plate is fixed on the two feed baffles, and the arc-shaped baffle plate is used to block the material so that the highest point of the upper surface of the material accumulated on the feed belt does not exceed the inner side of the frame of the arc-shaped baffle plate, thereby preventing the material from sliding off the feed belt.

[0012] Preferably, a bottom material collecting chute is obliquely arranged at a common lower position of the shielding drop cover and the material feeding baffle, and the bottom material collecting chute is also located below the arc-shaped material baffle plate, and a recycling material guide pipe is fixedly arranged at the lowest point of the bottom material collecting chute, and an obliquely arranged top guiding material chute is fixed at the top of the recycling material guide pipe, and the top guiding material chute is used to discharge the material inside the recycling material guide pipe into the lower hopper; a recycling drive motor is fixed to the bottom end of the recycling material guide pipe, and a recycling material guide screw is rotatably provided on the inner wall of the recycling material guide pipe, and the recycling material guide screw is fixed on the output shaft of the recycling drive motor, and an opening is provided at the position where the recycling material guide pipe contacts the bottom material collecting chute, so that the material on the bottom material collecting chute can slide into the recycling material guide pipe.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention can effectively reduce the impact force of the falling material by adding an elastic self-buffering mechanism to the conveying system. In particular, for relatively fragile materials, the buffering effect of the materials on the conveyor belt can prevent them from being damaged, thereby improving the stability and efficiency of the transportation process; (2) The present invention has a material recovery function, which can automatically recover the fallen or accumulated materials into the lower hopper, which can effectively reduce material waste and improve the efficiency of resource reuse; (3) The present invention can effectively prevent the materials from being accumulated too high and overflowing on the conveyor belt by setting an arc-shaped baffle plate and a bottom material collection trough, and prevent the materials from easily sliding to the outside of the conveyor belt due to mechanical vibration during the material transportation process; (4) The present invention can adjust the working state of the conveyor belt according to the characteristics of the material and the height of the fall through the adjustable feed belt height, thereby avoiding unnecessary impact caused by excessively high or low drop, and ensuring that the materials can be delivered to the target position in the optimal state. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a structural schematic diagram of the material conveying baffle of the present invention.

[0016] Figure 3 It is a schematic diagram of the feeding baffle and the auxiliary triangular bevel structure of the present invention.

[0017] Figure 4 It is a schematic diagram of the structure of the conveyor belt of the present invention.

[0018] Figure 5 It is a schematic diagram of the lower hopper structure of the present invention.

[0019] Figure 6 It is a structural schematic diagram of the differential magnetic planet carrier of the present invention.

[0020] Figure 7It is a schematic diagram of the structure of the feeding assembly of the present invention.

[0021] Figure 8 It is a schematic diagram of the spline hole structure of the present invention.

[0022] In the figure: 101-shielding drop cover; 102-bottom rotating column; 103-top rotating column; 104-transmission channel tube; 105-partition; 106-lower hopper; 107-crossbeam frame; 108-differential control electromagnet bracket; 109-differential control electromagnet; 110-transmission belt; 111-drive motor; 112-differential gear ring; 113-feeding transmission column; 114-bottom spiral sheet; 115-top spiral sheet; 116-auxiliary electromagnet; 117-center rod shaft; 118-reset spring; 119-magnetic traction Block; 120-spline barrel shaft; 121-embedded groove; 122-spline hole; 123-differential central gear; 124-differential planetary gear; 125-differential magnetic planetary carrier; 126-feeding baffle; 127-arc baffle; 128-bottom material collection and sliding trough; 129-recycling drive motor; 130-recycling material guide pipe; 131-recycling material guide screw; 132-top guide material chute; 133-auxiliary triangular bevel; 134-feeding belt; 135-belt drive roller; 136-belt support plate. DETAILED DESCRIPTION

[0023] Combine the following Figure 1-Figure 8 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0024] The present invention provides a material conveyor for primary processing of agricultural products, comprising a shielding drop cover 101, an opening is arranged at the bottom of the shielding drop cover 101, a feeding belt 134 is arranged below the opening, and the distance between the upper surface of the feeding belt 134 and the bottom opening of the shielding drop cover 101 can be adjusted; feeding baffles 126 are arranged on both sides of the feeding belt 134, and belt driving rollers 135 are rotatably installed at both ends between the opposite surfaces of the two feeding baffles 126, wherein the two belt driving rollers 135 are synchronously driven and matched through the feeding belt 134, and a belt supporting plate 136 is fixed between the two feeding baffles 126, and the belt supporting plate 136 is fixed between the two feeding baffles 126. The support plate 136 is used to support the feed belt 134, wherein the belt support plate 136 does not pass under the bottom opening of the shielding drop cover 101, and uses the elasticity of the feed belt 134 itself to cushion the falling of the materials, and the belt support plate 136 is provided with a downward inclined bend at one end close to the shielding drop cover 101; the upper surface of the feed belt 134 is provided with an auxiliary triangular bevel 133, and the auxiliary triangular bevel 133 is closed to allow the materials falling out of the shielding drop cover 101 to slide onto the feed belt 134, thereby preventing the materials from accumulating at the right angle between the feed belt 134 and the feed baffle 126. A partition 105 is fixedly covered on the falling shielding cover 101, and a lower hopper 106 is arranged above the partition 105. The falling shielding cover 101 and the lower hopper 106 are connected by a conveying channel tube 104, and the falling shielding cover 101, the conveying channel tube 104 and the lower hopper 106 are coaxially arranged, and a feeding component is rotatably arranged inside the conveying channel tube 104.

[0025] The feeding assembly includes a bottom rotating column 102 and a top rotating column 103. The bottom spiral sheet 114 and the top spiral sheet 115 are respectively fixed around the outer surface of the bottom rotating column 102 and the top rotating column 103. The bottom spiral sheet 114 and the top spiral sheet 115 can be combined into a complete spiral plate. The bottom spiral sheet 114 and the top spiral sheet 115 are matched in a sliding manner at the opposite side. Spline holes 122 are provided at the axis of the bottom rotating column 102 and the top rotating column 103. Spline cylinder shafts 120 are slidably provided in the two spline holes 122. A magnetic traction block 119 is fixed to the top of the spline cylinder shaft 120. The center of the spline cylinder shaft 120 rotates and slides to match the center rod shaft 117. The bottom end of the center rod shaft 117 is fixedly matched with the bottom rotating column 102. An embedded groove 121 is also provided in the top rotating column 103. The embedded groove 121 is located at the top of the spline hole 122 provided in the top rotating column 103. The inner wall of the embedded groove 121 is slidably matched with the magnetic traction block 119. An auxiliary electromagnet 116 is provided above the embedded groove 121. The auxiliary electromagnet 116 is embedded in the top rotating column 103. A return spring 118 is fixedly provided between the top of the inner wall of the embedded groove 121 and the top of the spline cylinder shaft 120. The return spring 118 is arranged around the outside of the center rod shaft 117. The center rod shaft 117 and the top rotating column 103 are rotatably matched. A crossbeam frame 107 is fixed to the top edge of the lower hopper 106, and a feeding transmission column 113 is rotatably mounted on the crossbeam frame 107. The feeding transmission column 113 is fixedly matched with the top of the top rotating column 103, and the feeding transmission column 113 is rotatably matched with the center rod shaft 117, and the top of the center rod shaft 117 extends to above the top of the feeding transmission column 113; a differential gear ring 112 is rotatably mounted on the crossbeam frame 107, and the differential gear ring 112 is fixedly matched with the top of the feeding transmission column 113. The center position of the differential gear ring 112 is rotatably equipped with a differential center gear 123 fixed to the top of the center rod shaft 117. The differential center gear 123 and the inner ring teeth of the differential gear ring 112 are meshed and transmitted through three differential planetary gears 124, and the three differential planetary gears 124 are rotatably mounted on the differential magnetic planetary frame 125. The differential magnetic planet carrier 125 is rotatably mounted on the differential control electromagnet bracket 108, and the differential control electromagnet bracket 108 is fixed on the crossbeam frame 107. The differential control electromagnet 109 that magnetically cooperates with the differential magnetic planet carrier 125 is also fixed on the differential control electromagnet bracket 108. The drive motor 111 is also fixed on the crossbeam frame 107, and the output shaft of the drive motor 111 is connected to the differential gear ring 112 through a transmission belt 110.

[0026] An arc-shaped baffle plate 127 is also fixed to the two feed baffles 126 , and the arc-shaped baffle plate 127 is used to block materials so that the highest point of the upper surface of the materials accumulated on the feed belt 134 does not exceed the inner side of the frame of the arc-shaped baffle plate 127 to prevent the materials from sliding off the feed belt 134 . A bottom material collecting and sliding trough 128 is obliquely arranged at the common lower position of the shielding drop cover 101 and the material feeding baffle 126, and the bottom material collecting and sliding trough 128 is also located below the arc-shaped material baffle plate 127. A recycling material guide pipe 130 is fixedly arranged at the lowest point of the bottom material collecting and sliding trough 128, and a top guiding material chute 132 is fixedly arranged at the top of the recycling material guide pipe 130. The top guiding material chute 132 is used to discharge the material inside the recycling material guide pipe 130 into the lower hopper 106; a recycling drive motor 129 is fixed to the bottom end of the recycling material guide pipe 130, and a recycling material guide screw 131 is rotatably provided on the inner wall of the recycling material guide pipe 130, and the recycling material guide screw 131 is fixed on the output shaft of the recycling drive motor 129, and an opening is opened at the position where the recycling material guide pipe 130 contacts the bottom material collecting and sliding trough 128, so that the material on the bottom material collecting and sliding trough 128 can slide into the recycling material guide pipe 130.

[0027] The working principle of the material conveyor for primary processing of agricultural products disclosed in the present invention is as follows: the material is poured into the lower hopper 106, and then the driving motor 111 is started. The output shaft of the driving motor 111 drives the differential gear ring 112 to rotate through the transmission belt 110. The rotation of the differential gear ring 112 drives the feeding transmission column 113 to rotate. The rotation of the feeding transmission column 113 drives the top rotating column 103 to rotate. When the auxiliary electromagnet 116 is not started, the spline cylinder shaft 120 is inserted into the spline hole 122 in the bottom rotating column 102, so that the spline cylinder shaft 120 is driven by the spline cylinder shaft 122. 0 will cause the bottom rotating column 102 and the top rotating column 103 to rotate synchronously, so the bottom rotating column 102 will also rotate, and the corresponding bottom spiral sheet 114 and top spiral sheet 115 will rotate, and the material inside the lower hopper 106 will be rotated into the shielding drop cover 101, and then fall onto the conveyor belt 134. Since the conveyor belt 134 under the shielding drop cover 101 is not supported by the belt support plate 136, the elasticity of the conveyor belt 134 itself can play a buffering role. At this time, the material is transported to the specified position by the rotation of the conveyor belt 134. After the material falls from the shielding drop cover 101 onto the conveyor belt 134, the material will pass through the arc-shaped material baffle plate 127, which will block the upper surface of the shaped material, making the upper surface of the material arc-shaped and limiting the height of the material accumulation to prevent the top of the material from sliding down when moving on the conveyor belt 134. The material blocked by the arc-shaped material baffle plate 127 will fall onto the bottom material collecting and sliding chute 128. The area of ​​the bottom material collecting and sliding chute 128 is larger than the width of the conveyor belt 134. Since the bottom material collecting and sliding chute 128 is inclined, the material will slide into the recycling material guide pipe 130 under the action of gravity, and the recycling drive motor 129 will be started. The recycling drive motor 129 drives the recycling material guide screw 131 to rotate, and the recycling material guide screw 131 drives the material to move to the top of the recycling material guide pipe 130, and then falls back into the lower hopper 106 through the top guide material chute 132 to achieve recycling. The drop cover 101 and the material feeding baffle 126 are fixed on the corresponding frames, and the distance between them can be adjusted.

[0028] Some materials contain some moisture, so they may stick to the bottom spiral sheet 114 and the bottom rotating column 102 (the top spiral sheet 115 and the feeding transmission column 113 are in direct contact with the material inside the lower hopper 106, playing the role of material transportation). Extending the bottom rotating column 102 of the feeding assembly to the bottom of the conveying channel tube 104 can reduce the height between the bottom rotating column 102 and the conveyor belt 134, reduce the distance the material falls, and thus play the role of material falling buffer. However, some sticky materials will stand on the bottom spiral sheet 114, so it is necessary to extend the bottom rotating column 102 of the feeding assembly to the bottom of the conveying channel tube 104. In order to get rid of the material attached to the bottom spiral sheet 114, it is necessary to increase the rotation speed of the bottom spiral sheet 114 and the bottom rotating column 102, and get rid of the material on the bottom spiral sheet 114 by centrifugal force. Specifically, it is necessary to start the differential control electromagnet 109 and the auxiliary electromagnet 116 at the same time, wherein the auxiliary electromagnet 116 generates magnetic force to attract the magnetic traction block 119, and the magnetic traction block 119 drives the spline barrel shaft 120 to be pulled out from the spline hole 122 in the bottom rotating column 102, so that the top rotating column 103 and the bottom rotating column 102 no longer rotate synchronously, and the differential control The magnetic force generated by the electromagnet 109 will attract the differential magnetic planet carrier 125, thereby magnetically constraining the differential magnetic planet carrier 125 (it is not a rigid connection, so when the spline barrel shaft 120 has not been pulled out of the spline hole 122 on the bottom rotating column 102, the center rod shaft 117 will rotate with the differential gear ring 112, and the differential magnetic planet carrier 125 will overcome the magnetic force of the differential control electromagnet 109 to rotate), limiting the rotation of the differential magnetic planet carrier 125 (the differential magnetic planet carrier 125 is free to rotate at the beginning), and the differential magnetic planet carrier 125 is After limiting the rotation, the power on the differential ring gear 112 will be transmitted to the differential center gear 123 through the differential planetary gear 124, and the differential center gear 123 will drive the center rod shaft 117 to rotate. Since the radius of the differential ring gear 112 is larger than the radius of the differential center gear 123, it is an increase in speed. The center rod shaft 117 drives the bottom rotating column 102 to rotate, and the bottom rotating column 102 drives the bottom spiral plate 114 to rotate. At this time, the rotation speed of the bottom spiral plate 114 will be greater than that of the top spiral plate 115, and the attached material will be thrown off through the high-speed transfer of the bottom spiral plate 114.When resetting, the auxiliary electromagnet 116 needs to be stopped first, and the spline barrel shaft 120 is reset under the elastic force of the reset spring 118. The spline barrel shaft 120 will slide toward the spline hole 122 in the bottom rotating column 102. At the beginning, the spline on the spline barrel shaft 120 (there is only one spline on the spline barrel shaft 120, so the rotation angle is fixed, allowing the bottom spiral sheet 114 and the top spiral sheet 115 to form a complete spiral) will slide relative to each other at the top of the bottom rotating column 102 (keeping the differential control electromagnet 109 started is to allow there to be a speed difference between the top rotating column 103 and the bottom rotating column 102), until the spline hole 122 is aligned, the spline barrel shaft 120 will enter the spline hole 122, at which time the bottom rotating column 102 and the top rotating column 103 will rotate synchronously again, and then the differential control electromagnet 109 will be stopped.

Claims

1. A material conveyor for primary processing of agricultural products, characterized in that: It comprises a shielding drop cover (101), wherein an opening is arranged at the bottom of the shielding drop cover (101), a feeding belt (134) is arranged below the opening, and the distance between the upper surface of the feeding belt (134) and the bottom opening of the shielding drop cover (101) is adjustable; A feed baffle (126) is provided on both sides of the feed belt (134), and belt drive rollers (135) are rotatably installed at both ends between the opposite surfaces of the two feed baffles (126), wherein the two belt drive rollers (135) are synchronously driven by the feed belt (134), and a belt support plate (136) is fixed between the two feed baffles (126), and the belt support plate (136) is used to support the feed belt (134), wherein the belt support plate (136) does not pass under the bottom opening of the shielding drop cover (101), and uses the elasticity of the feed belt (134) itself to buffer the falling of the material, and a downwardly inclined bend is provided at one end of the belt support plate (136) close to the shielding drop cover (101); An auxiliary triangular bevel (133) is provided on the upper surface of the conveyor belt (134). The auxiliary triangular bevel (133) is arranged to be closed, so that materials falling out of the shielding drop cover (101) can slide onto the conveyor belt (134), thereby preventing the materials from accumulating at the right angle between the conveyor belt (134) and the conveyor baffle (126).

2. A material conveyor for primary processing of agricultural products according to claim 1, characterized in that: The shielding drop cover (101) is covered and fixed with a partition (105), and a lower hopper (106) is arranged above the partition (105). The shielding drop cover (101) and the lower hopper (106) are connected via a conveying channel tube (104), and the shielding drop cover (101), the conveying channel tube (104) and the lower hopper (106) are coaxially arranged, and a feeding assembly is rotatably arranged inside the conveying channel tube (104).

3. A material conveyor for primary processing of agricultural products according to claim 2, characterized in that: The feeding assembly comprises a bottom rotating column (102) and a top rotating column (103), and a bottom spiral sheet (114) and a top spiral sheet (115) are respectively fixedly disposed around the outer surfaces of the bottom rotating column (102) and the top rotating column (103). The bottom spiral sheet (114) and the top spiral sheet (115) can be combined into a complete spiral plate, and the opposite sides of the bottom spiral sheet (114) and the top spiral sheet (115) are matched in a sliding manner.

4. The material conveyor for primary processing of agricultural products according to claim 3, characterized in that: A spline hole (122) is provided at the axis of the bottom rotating column (102) and the top rotating column (103). A spline cylindrical shaft (120) is slidably arranged in the two spline holes (122) in a spline manner. A magnetic traction block (119) is fixed to the top of the spline cylindrical shaft (120). The axis of the spline cylindrical shaft (120) is rotatably and slidably matched with a central rod shaft (117), and the bottom end of the central rod shaft (117) is fixedly matched with the bottom rotating column (102).

5. The material conveyor for primary processing of agricultural products according to claim 4, characterized in that: An embedded groove (121) is also provided in the top rotating column (103). The embedded groove (121) is located at the top of the spline hole (122) provided in the top rotating column (103). The inner wall of the embedded groove (121) is slidably matched with the magnetic traction block (119). An auxiliary electromagnet (116) is provided above the embedded groove (121). The auxiliary electromagnet (116) is embedded in the top rotating column (103).

6. The material conveyor for primary processing of agricultural products according to claim 5, characterized in that: A return spring (118) is fixedly arranged between the top of the inner wall of the embedded groove (121) and the top end of the spline cylinder shaft (120). The return spring (118) is arranged around the outside of the central rod shaft (117). The central rod shaft (117) and the top rotating column (103) are rotationally matched.

7. The material conveyor for primary processing of agricultural products according to claim 6, characterized in that: A crossbeam frame (107) is fixed to the top edge of the lower hopper (106), a feeding transmission column (113) is rotatably mounted on the crossbeam frame (107), the feeding transmission column (113) is fixedly matched with the top end of the top rotating column (103), and the feeding transmission column (113) is rotatably matched with the center rod shaft (117), and the top end of the center rod shaft (117) extends to above the top end of the feeding transmission column (113); A differential gear ring (112) is rotatably mounted on the crossbeam frame (107). The differential gear ring (112) is fixedly matched with the top of a feeding transmission column (113). A differential central gear (123) fixed to the top of a central rod shaft (117) is rotatably mounted at the center of the differential gear ring (112). The differential central gear (123) and the inner ring teeth of the differential gear ring (112) are meshed and driven through three differential planetary gears (124). The three differential planetary gears (124) are rotatably mounted on a differential magnetic planetary frame (125).

8. The material conveyor for primary processing of agricultural products according to claim 7, characterized in that: The differential magnetic planet carrier (125) is rotatably mounted on a differential control electromagnet bracket (108), the differential control electromagnet bracket (108) is fixed on a crossbeam bracket (107), a differential control electromagnet (109) magnetically matched with the differential magnetic planet carrier (125) is also fixed on the differential control electromagnet bracket (108), a drive motor (111) is also fixed on the crossbeam bracket (107), and an output shaft of the drive motor (111) is connected to the differential gear ring (112) via a transmission belt (110).

9. A material conveyor for primary processing of agricultural products according to claim 8, characterized in that: The two feed baffles (126) are also fixed with arc-shaped baffle plates (127), which are used to block materials so that the highest point of the upper surface of the materials accumulated on the feed belt (134) does not exceed the inner side of the frame of the arc-shaped baffle plates (127), thereby preventing the materials from sliding off the feed belt (134).

10. A material conveyor for primary processing of agricultural products according to claim 9, characterized in that: A bottom material collection chute (128) is obliquely arranged at a position below the common shielding drop cover (101) and the material conveying baffle (126); the bottom material collection chute (128) is also located below the arc-shaped material baffle (127); a recovery material guide pipe (130) is fixedly arranged at the lowest point of the bottom material collection chute (128); a top recovery material guide chute (132) is fixedly arranged at the top end of the recovery material guide pipe (130); the top recovery material guide chute (132) is used to discharge the material inside the recovery material guide pipe (130) into the lower hopper (106); A recycling drive motor (129) is fixed to the bottom end of the recycling material guide tube (130), a recycling material guide screw (131) is rotatably provided on the inner wall of the recycling material guide tube (130), the recycling material guide screw (131) is fixed to the output shaft of the recycling drive motor (129), and an opening is provided at a position where the recycling material guide tube (130) contacts the bottom material collection sliding groove (128), so that the material on the bottom material collection sliding groove (128) can slide into the recycling material guide tube (130).

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