Grain assisted milling device for feed preparation

Abstract

The application discloses a grain auxiliary grinding device for feed preparation, relates to the technical field of feed preparation grinding devices, and discloses a grain auxiliary grinding device for feed preparation, which comprises a grinding cylinder and further comprises: a main shaft rotatably arranged in the grinding cylinder, wherein a first grinding wheel and a second grinding wheel are fixedly connected to the main shaft; and a coarse grinding area is formed between the first grinding wheel and the inner wall of the grinding cylinder. The grain auxiliary grinding device is provided with three areas capable of finely grinding grain raw materials, namely, a partitioned fine grinding area one, a partitioned fine grinding area two and a sandwiched material grinding and rubbing assembly. In the process of grinding the grain raw materials, the grain raw materials can be ground in a partitioned, dispersed and separated manner, thereby effectively avoiding the heavy grinding burden caused by only one grinding area in the prior art. Therefore, the grain auxiliary grinding device can not only solve the problem of complete grinding, but also improve the grinding efficiency and reduce the grinding burden.

Description

Technical Field

[0001] This invention belongs to the technical field of feed preparation grinding devices, specifically, it relates to a grain auxiliary grinding device for feed preparation. Background Technology

[0002] In the feed preparation process, grain raw materials, such as corn and wheat, need to be crushed before they can enter the next step of the feed preparation process.

[0003] Existing grinding devices do not grind raw materials thoroughly enough and have low grinding efficiency. Furthermore, the raw materials can only be ground by one grinding component, which leads to a heavy grinding burden in the grinding area and further reduces the grinding effect and efficiency. To address these issues, we propose a grain-assisted grinding device for feed preparation. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a grain auxiliary milling device for feed preparation that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: a grain auxiliary grinding device for feed preparation, comprising a grinding cylinder, and further comprising: a main shaft rotatably disposed in the grinding cylinder, wherein a first grinding wheel and a second grinding wheel are fixedly connected to the main shaft respectively, and a coarse grinding zone is formed between the first grinding wheel and the inner wall of the grinding cylinder; a filter screen fixedly connected in the grinding cylinder, wherein a fine grinding screen is fixedly connected to the filter screen, the fine grinding screen extending between the first grinding wheel and the second grinding wheel, and the fine grinding screen being connected to the first grinding wheel and the second grinding wheel. A first fine grinding zone is formed between the two grinding wheels. A material discharge channel is provided on the second grinding wheel, which extends through the end of the second grinding wheel to finely grind the raw material that has undergone coarse grinding. A clamping and grinding assembly is provided between the second grinding wheel and the inner wall of the grinding cylinder to clamp and grind the raw material when it passes through the clamping and grinding assembly. A second fine grinding zone is formed between the lower wall of the second grinding wheel and the grinding cylinder to finely grind the raw material that has passed through the second fine grinding zone. A discharge cylinder is located at the lower end of the grinding cylinder.

[0006] Preferably, a wide channel area is formed between the second grinding wheel and the grinding cylinder, and the material clamping and grinding assembly is located in the wide channel area. The material clamping and grinding assembly includes a plurality of first magnetic plates circumferentially mounted on the upper wall of the second grinding wheel at equal intervals. A guide rod is slidably connected to the grinding cylinder, and a second magnetic plate is fixedly connected to one end of the guide rod. A plurality of guide rods and second magnetic plates are circumferentially arranged. The guide rod is connected to the grinding cylinder by a spring, and the first magnetic plates and second magnetic plates are attracted to each other.

[0007] Furthermore, a material discharge zone and a material drop zone are formed between the second grinding wheel and the grinding cylinder. The height of the second grinding wheel is L, the height of the material discharge zone is L1, the height of the wide channel zone is L2, the height of the second fine grinding zone is L3, and the height of the material discharge zone is L4. Then, the following constraint relationship exists:

[0008] L = L1 + L2 + L3,

[0009] L2 = 1.8L3 = 4L1,

[0010] L4 = 1 / 10L;

[0011] The width of the material feeding area is W1, the width of the wide channel area is W2, the width of the second partitioned fine grinding area is W3, and the width of the discharge area is W4. Then the following constraints exist:

[0012] W2 = W1 = 4W3 = 3W4.

[0013] Preferably, an upper support and a lower support are fixedly connected in the grinding cylinder, the main shaft is rotatably connected to the upper support and the lower support, a motor is installed on the grinding cylinder, and the motor is connected to the main shaft.

[0014] Furthermore, a first rod is fixedly connected to the upper support, a crossbar is provided on the first grinding wheel, and a second rod is fixedly connected to the crossbar. The second rod and the first rod are staggered to agitate the raw material in the upper end of the grinding cylinder when the first grinding wheel rotates, through the cooperation of the second rod and the first rod.

[0015] Furthermore, the first and second grinding wheels are circumferentially connected with multiple long sliding rods. The ends of the long sliding rods are connected to the bottom of the second grinding wheel by tension springs. The crossbar is connected to the long sliding rods and is used to drive the second rod to move up and down between the first rods when the long sliding rods slide back and forth.

[0016] Preferably, an arc-shaped curved plate is fixedly connected to the upper bracket, and one end of the long sliding rod corresponds to the arc-shaped curved plate.

[0017] Furthermore, it also includes a first air inlet pipe and a first air outlet pipe, with the first air outlet pipe facing the fine grinding screen.

[0018] Furthermore, it also includes a second air inlet pipe and a second air outlet pipe, the second air outlet pipe facing the second fine grinding zone, and a third air outlet pipe provided on the second air outlet pipe, the third air outlet pipe facing the second magnetic plate.

[0019] Preferably, the second grinding wheel has multiple cavities corresponding to the long slide rod. The long slide rod is fixedly connected to a piston plate inside the cavity. The piston plate is slidably connected in the cavity. The cavity is divided into a first chamber and a second chamber by the piston plate. The first air inlet pipe and the first air outlet pipe are connected to the first chamber. Both the first air inlet pipe and the first air outlet pipe are equipped with one-way valves. The second air inlet pipe and the second air outlet pipe are connected to the second chamber. Both the second air inlet pipe and the second air outlet pipe are equipped with one-way valves. An air passage is opened in the main shaft. The air passage extends to the end of the main shaft. Both the first air inlet pipe and the second air inlet pipe are connected to the air passage.

[0020] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0021] 1. This feed preparation grain auxiliary grinding device has three areas for fine grinding of grain raw materials: a first fine grinding area, a second fine grinding area, and a clamping grinding component. This allows for the grinding of grain raw materials in a segmented, dispersed, and separate manner, effectively avoiding the heavy grinding burden caused by having only one grinding area in the existing technology. Therefore, it not only solves the problem of thorough grinding but also improves grinding efficiency and reduces the grinding burden.

[0022] 2. The grain-assisted grinding device for feed preparation has a wider channel area with a height L, allowing for a larger channel area. This enables larger grain materials passing through the filter to be more effectively clamped by the first and second magnetic plates, further improving the grinding effect. The lower drop zone allows grain materials passing through the filter to enter the wide channel area more quickly, reducing the distance between the drop zone and the wide channel area. The lower discharge zone guides the finely ground grain feed, which slides quickly down the inner wall of the discharge cylinder to the bottom. This results in a V-shaped accumulation of the grain feed in the discharge cylinder, creating a concave area in the middle. The grain feed falling into the discharge cylinder through the drop channel fills this concave area, ensuring that the ground grain feed is evenly distributed in the discharge cylinder, preventing uneven accumulation and instability of the grinding cylinder's center of gravity.

[0023] 3. The width of the feeding zone allows grain raw materials passing through the filter screen to quickly enter the wide channel zone, thus avoiding accumulation and jamming. The width of the wide channel zone allows for a larger gap between the first and second magnetic plates in the default state. This means that when the first and second magnetic plates are close together, more grain raw materials can be clamped, thereby improving the efficiency of fine grinding of the grain raw materials. In addition, the second magnetic plate can obtain a greater clamping force when it approaches the first magnetic plate, further crushing the grain raw materials that have passed through the first and second magnetic plates. The narrow second-division fine grinding zone can improve the effect of fine grinding of grain raw materials. The discharge zone, which is wider than the second-division fine grinding zone, allows the grain feed after being ground in the second-division fine grinding zone to fall quickly into the discharge cylinder, avoiding accumulation or jamming in the discharge zone.

[0024] 4. The grain grinding auxiliary device for feed preparation, through the first rod and the second rod that can rotate and move up and down, can effectively stir the grain raw material to be ground in the grinding cylinder, avoid jamming, and handle foreign objects in the grain raw material to be ground.

[0025] 5. The grain auxiliary grinding device for feed preparation, the long slide rod in this device can not only drive the second rod to move up and down to block foreign objects in the grain raw material to be ground, but also pump gas into the first air outlet pipe and the second air outlet pipe when the long slide rod moves up and down, so as to remove the grain blocked on the fine grinding screen and drive the fine grain raw material in the second fine grinding zone to accelerate through the second fine grinding zone and fall into the discharge cylinder.

[0026] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0027] In the attached diagram:

[0028] Figure 1 This is a schematic diagram of the structure of a grain auxiliary milling device for feed preparation proposed in this invention. Figure 1 ;

[0029] Figure 2 This invention provides a grain-assisted milling device for feed preparation. Figure 1 Schematic diagram of the structure at point A;

[0030] Figure 3 This is a schematic diagram of the discharge cylinder of a grain auxiliary grinding device for feed preparation proposed in this invention;

[0031] Figure 4 This invention provides a grain-assisted milling device for feed preparation. Figure 3Schematic diagram of the structure at point B;

[0032] Figure 5 This is a schematic diagram of the first and second grinding wheels of a grain auxiliary grinding device for feed preparation proposed in this invention.

[0033] Figure 6 This invention provides a grain-assisted milling device for feed preparation. Figure 5 Schematic diagram of the structure at point C;

[0034] Figure 7 This is a schematic diagram of the support leg of a grain auxiliary milling device for feed preparation proposed in this invention;

[0035] Figure 8 This is a schematic diagram of the long slide bar and the material feeding channel of a grain auxiliary grinding device for feed preparation proposed in this invention.

[0036] Figure 9 This is a schematic diagram of the structure of the first section of the fine grinding zone in a grain auxiliary grinding device for feed preparation proposed in this invention;

[0037] Figure 10 This is a schematic diagram of the structure of the first magnetic plate and the second magnetic plate of a grain auxiliary milling device for feed preparation proposed in this invention.

[0038] Figure 11 This is a schematic diagram of the cavity structure of a grain auxiliary grinding device for feed preparation proposed in this invention.

[0039] In the diagram: 1. Grinding cylinder; 10. Discharge cylinder; 101. Support leg; 11. Main shaft; 111. Air passage; 112. Lower support; 12. Motor; 13. Upper support; 131. First rod; 132. Arc-shaped curved plate; 14. First grinding wheel; 141. Coarse grinding zone; 142. Filter screen; 143. Fine grinding screen; 144. First zoned fine grinding zone; 145. Material discharge channel; 15. Second grinding wheel; 150. Material discharge zone; 1500. Discharge zone; 151. Wide channel zone; 1501. Upper... 1502. Lower wall; 152. First magnetic plate; 153. Guide rod; 154. Spring; 155. Second magnetic plate; 156. Second fine grinding zone; 16. Long slide rod; 161. Crossbar; 162. Second rod; 163. Tension spring; 164. Cavity; 165. Piston plate; 166. First chamber; 1661. First air inlet pipe; 1662. First air outlet pipe; 167. Second chamber; 1671. Second air inlet pipe; 1672. Second air outlet pipe; 1673. Third air outlet pipe. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0041] Example 1: Refer to Figures 1-11 A grain-assisted grinding device for feed preparation includes a grinding cylinder 1, and further includes: a main shaft 11 rotatably disposed in the grinding cylinder 1, on which a first grinding wheel 14 and a second grinding wheel 15 are fixedly connected respectively; a coarse grinding zone 141 is formed between the first grinding wheel 14 and the inner wall of the grinding cylinder 1; a filter screen 142 fixedly connected in the grinding cylinder 1, on which a fine grinding screen 143 is fixedly connected, extending between the first grinding wheel 14 and the second grinding wheel 15, and forming a partitioned fine grinding zone 144 between the first grinding wheel 14 and the second grinding wheel 15; and a material discharge channel 145 is provided on the second grinding wheel 15. 45 passes through the end of the second grinding wheel 15 and is used to fine grind the raw material that has undergone coarse grinding; a clamping and grinding assembly is provided between the second grinding wheel 15 and the inner wall of the grinding cylinder 1, which is used to clamp and grind the raw material when it passes through the clamping and grinding assembly; a partitioned fine grinding zone 156 is formed between the lower wall 1502 of the second grinding wheel 15 and the grinding cylinder 1, which is used to fine grind the raw material that has passed through the partitioned fine grinding zone 156; the discharge cylinder 10 is located at the lower end of the grinding cylinder 1; an upper support 13 and a lower support 112 are fixedly connected in the grinding cylinder 1, and the main shaft 11 is rotatably connected to the upper support 13 and the lower support 112; a motor 12 is installed on the grinding cylinder 1 and the motor 12 is connected to the main shaft 11;

[0042] When this device is in use, the grain raw material is poured in from above the grinding cylinder 1. The first grinding wheel 14 and the second grinding wheel 15 rotate in the grinding cylinder 1 under the drive of the motor 12. When the grain raw material passes through the coarse grinding zone 141, it is crushed in the coarse grinding zone 141 by the rotation of the first grinding wheel 14.

[0043] After being crushed, the grain raw material is screened by the filter screen 142, so that some of the grain raw material passes through the filter screen 142 and enters between the second grinding wheel 15 and the grinding cylinder 1. The grain raw material that does not pass through the filter screen 142 will move to the inclined fine grinding screen 143 and come to the first fine grinding zone 144. The first grinding wheel 14 and the second grinding wheel 15 rotate to finely grind the grain raw material on the fine grinding screen 143 in the first fine grinding zone 144. The ground fine grain raw material is then discharged directly into the discharge cylinder 10 through the discharge channel 145.

[0044] The grain material passing through the filter screen 142 will enter between the second grinding wheel 15 and the grinding cylinder 1. A clamping and grinding component is provided between the second grinding wheel 15 and the grinding cylinder 1. Therefore, when the grain material passing through the filter screen 142 passes through the clamping and grinding component, it will be clamped, causing the grain material to be further broken and crushed. The clamping and grinding component will also grind the clamped grain material, thus making the grain material have a good grinding effect. After being ground by the clamping and grinding component, the grain material directly passes through the second fine grinding zone 156 and then into the discharge cylinder 10.

[0045] Grain raw materials that are not clamped by the clamping and grinding components will be finely ground when passing through the second fine grinding zone 156, and then ground into grain feed raw materials that meet the requirements.

[0046] It should be understood that grinding teeth are provided on the inner wall of the grinding cylinder 1 in the coarse grinding zone 141, the outer wall of the first grinding wheel 14, the lower wall 1502 of the second grinding wheel 15 in the second fine grinding zone 156, the inner wall of the grinding cylinder 1, and the bottom surface of the first grinding wheel 14, in order to further facilitate the crushing of grain raw materials.

[0047] Therefore, this device has three areas for fine grinding of grain raw materials: a first fine grinding area 144, a second fine grinding area 156, and a clamping grinding component. This allows for the grinding of grain raw materials in a segmented, dispersed, and separate manner during the grinding process. This effectively avoids the heavy grinding burden caused by having only one grinding area in the prior art. Therefore, it not only solves the problem of thorough grinding but also improves grinding efficiency and reduces the grinding burden.

[0048] Reference Figure 2 , Figure 4 , Figure 9 , Figure 10 A wide channel area 151 is formed between the second grinding wheel 15 and the grinding cylinder 1. The material clamping and grinding assembly is located in the wide channel area 151. The material clamping and grinding assembly includes a plurality of first magnetic plates 152 that are circumferentially mounted on the upper wall 1501 of the second grinding wheel 15 at equal intervals. A guide rod 153 is slidably connected to the grinding cylinder 1. A second magnetic plate 155 is fixedly connected to one end of the guide rod 153. A plurality of guide rods 153 and second magnetic plates 155 are arranged circumferentially. The guide rod 153 is connected to the grinding cylinder 1 by a spring 154. The first magnetic plates 152 and second magnetic plates 155 are attracted to each other.

[0049] The clamping and grinding assembly is achieved by the first magnetic plate 152 on the outer wall of the second grinding wheel 15 reciprocating to approach the second magnetic plate 155 on the inner wall of the grinding cylinder 1 when the second grinding wheel 15 rotates. Since the first magnetic plate 152 and the second magnetic plate 155 can attract each other, when the first magnetic plate 152 approaches the second magnetic plate 155, the second magnetic plate 155 is attracted and closely adheres to the first magnetic plate 152. During the close contact process, the grain raw material passing through the wide channel area 151 is clamped, thereby achieving the effect of breaking and crushing the clamped grain raw material.

[0050] Furthermore, the second grinding wheel 15 is rotating. Therefore, after the first magnetic plate 152 and the second magnetic plate 155 attract each other, the first magnetic plate 152 and the second magnetic plate 155 can grind the clamped grain material, thereby effectively grinding the clamped grain material.

[0051] Therefore, the clamping and grinding assembly set in the wide channel area 151 of this device can crush and finely grind the grain raw material that has passed through the filter screen 142 after being ground by the first grinding wheel 14, and achieve fine grinding of the grain raw material in advance, reducing the grinding burden of the second fine grinding area 156, and effectively improving the grinding effect and grinding efficiency.

[0052] When the first magnetic plate 152 and the second magnetic plate 155 separate, the second magnetic plate 155 will be reset under the pushing force of the spring 154.

[0053] The grinding cylinder 1 is equipped with support legs 101, which facilitates the installation of the grinding cylinder 1.

[0054] Example 2: Refer to Figure 2 A grain-assisted grinding device for feed preparation is basically the same as in Example 1, but with a further improvement: a material drop zone 150 and a material discharge zone 1500 are formed between the second grinding wheel 15 and the grinding cylinder 1. The height of the second grinding wheel 15 is L, the height of the material drop zone 150 is L1, the height of the wide channel zone 151 is L2, the height of the second zone fine grinding zone 156 is L3, and the height of the material discharge zone 1500 is L4. Then the following constraint relationship exists:

[0055] L = L1 + L2 + L3,

[0056] L2 = 1.8L3 = 4L1,

[0057] L4 = 1 / 10L;

[0058] Reference Figure 2 , Figure 4The height L2 of the wide channel area 151 allows for a larger area, enabling larger grain materials passing through the filter screen 142 to be more effectively clamped by the first magnetic plate 152 and the second magnetic plate 155 within the wide channel area 151. This further improves the grinding effect on the grain materials.

[0059] The smaller drop zone 150 allows the grain material passing through the filter screen 142 to enter the wide channel zone 151 more quickly, thereby reducing the distance between the drop zone 150 and the wide channel zone 151.

[0060] The relatively small discharge zone 1500 allows the finely ground grain feed to slide quickly down the inner wall of the discharge cylinder 10 to the bottom of the discharge cylinder 10 after being guided by the discharge zone 1500. This allows the grain feed falling into the discharge cylinder 10 through the discharge zone 1500 to form a V-shaped accumulation in the discharge cylinder 10, creating a concave area in the middle of the discharge cylinder 10. At this time, the grain feed falling into the discharge cylinder 10 through the dropping channel 145 just fills the concave area, thus ensuring that the ground grain feed can be evenly filled in the discharge cylinder 10, avoiding uneven accumulation of feed in the discharge cylinder 10 and causing instability of the center of gravity of the grinding cylinder 1.

[0061] The width of the material discharge zone 150 is W1, the width of the wide channel zone 151 is W2, the width of the secondary fine grinding zone 156 is W3, and the width of the discharge zone 1500 is W4. Then the following constraints exist:

[0062] W2 = W1 = 4W3 = 3W4;

[0063] The width of the material drop zone 150 allows the grain raw materials passing through the filter screen 142 to quickly enter the wide channel zone 151, thereby avoiding accumulation and jamming.

[0064] The width of the wide channel area 151 allows for a larger spacing between the first magnetic plate 152 and the second magnetic plate 155 in the default state. This allows the first magnetic plate 152 and the second magnetic plate 155 to clamp more grain raw materials when they are close together, thereby improving the efficiency of fine grinding of grain raw materials. In addition, it also allows the second magnetic plate 155 to obtain a greater clamping force when it moves closer to the first magnetic plate 152, thereby further crushing the grain raw materials that have passed through the first magnetic plate 152 and the second magnetic plate 155.

[0065] The narrow-width fine grinding zone 2 (156) can improve the fine grinding effect on grain raw materials;

[0066] The width is greater than the discharge zone 1500 of the second fine grinding zone 156, which allows the grain feed after being ground in the second fine grinding zone 156 to fall quickly into the discharge cylinder 10, avoiding accumulation or jamming in the discharge zone 1500.

[0067] Example 3: Reference Figure 1 , Figure 6 , Figure 9 , Figure 10 , Figure 11 A grain-assisted grinding device for feed preparation is basically the same as that in Example 2, but further: a first rod 131 is fixedly connected to the upper support 13, a crossbar 161 is provided on the first grinding wheel 14, a second rod 162 is fixedly connected to the crossbar 161, and the second rod 162 is staggered with the first rod 131 so that when the first grinding wheel 14 rotates, the second rod 162 cooperates with the first rod 131 to stir the raw material in the upper end of the grinding cylinder 1.

[0068] Multiple long slide rods 16 are circumferentially connected in the first grinding wheel 14 and the second grinding wheel 15. The ends of the long slide rods 16 are connected to the bottom of the second grinding wheel 15 by a tension spring 163. The crossbar 161 is connected to the long slide rods 16 and is used to drive the second rod 162 to move up and down between the first rods 131 when the long slide rods 16 slide back and forth.

[0069] An arc-shaped curved plate 132 is fixedly connected to the upper bracket 13, and one end of the long sliding rod 16 corresponds to the arc-shaped curved plate 132.

[0070] When in use, when the first grinding wheel 14 and the second grinding wheel 15 rotate, they will drive the crossbar 161 and the second rod 162 to rotate together. At this time, the crossbar 161 and the second rod 162 can stir the grain raw material to be ground in the grinding cylinder 1 while rotating, which can effectively prevent the grain raw material to be ground from getting stuck in the grinding cylinder 1.

[0071] Furthermore, when the first grinding wheel 14 and the second grinding wheel 15 rotate, the long sliding rod 16 will move downward when passing the arc-shaped bending plate 132. When it moves downward, the second rod 162 will also move downward. When the long sliding rod 16 is not in contact with the arc-shaped bending plate 132, the long sliding rod 16 will move upward under the pull of the tension spring 163, thus forming a trajectory of the second rod 162 repeatedly moving up and down between the first rod 131. Therefore, when the second rod 162 moves up and down, it can effectively trap foreign objects in the grain raw material to be ground in the grinding cylinder 1 onto the second rod 162 and block them at the first rod 131 and the second rod 162, preventing foreign objects from entering the coarse grinding area 141.

[0072] Therefore, the first rod 131 and the second rod 162, which can rotate and move up and down, can effectively stir the grain raw material to be ground in the grinding cylinder 1, prevent it from getting stuck, and handle foreign objects in the grain raw material to be ground.

[0073] Example 4:

[0074] Reference Figure 4 , Figure 8 , Figure 10 , Figure 11 A grain-assisted grinding device for feed preparation is basically the same as that in Example 3, but further includes a first air inlet pipe 1661 and a first air outlet pipe 1662, with the first air outlet pipe 1662 facing the fine grinding screen 143.

[0075] It also includes a second air inlet pipe 1671 and a second air outlet pipe 1672. The second air outlet pipe 1672 faces the second fine grinding zone 156. A third air outlet pipe 1673 is provided on the second air outlet pipe 1672. The third air outlet pipe 1673 faces the second magnetic plate 155.

[0076] The second grinding wheel 15 has multiple cavities 164 corresponding to the long slide rod 16. The long slide rod 16 is located in the cavity 164 and is fixedly connected to a piston plate 165. The piston plate 165 is slidably connected in the cavity 164. The cavity 164 is divided into a first chamber 166 and a second chamber 167 by the piston plate 165. The first air inlet pipe 1661 and the first air outlet pipe 1662 are connected to the first chamber 166. One-way valves are provided on the first air inlet pipe 1661 and the first air outlet pipe 1662. The second air inlet pipe 1671 and the second air outlet pipe 1672 are connected to the second chamber 167. One-way valves are provided in the second air inlet pipe 1671 and the second air outlet pipe 1672. An air passage 111 is opened in the main shaft 11 and extends to the end of the main shaft 11. The first air inlet pipe 1661 and the second air inlet pipe 1671 are connected to the air passage 111.

[0077] When in use, the long slide rod 16 is driven by the arc-shaped curved plate 132 and slides up and down in the first grinding wheel 14 and the second grinding wheel 15, which causes the piston plate 165 to slide in the cavity 164. Therefore, during the sliding process of the piston plate 165, the gas in the first chamber 166 and the second chamber 167 is squeezed respectively. The squeezed gas is sprayed onto the fine grinding screen 143 through the first air outlet pipe 1662, which removes the grain blocked on the fine grinding screen 143, thereby improving the grinding effect of the fine grinding screen 143 on the grain raw materials.

[0078] The gas ejected from the second exhaust pipe 1672 is directed into the second partitioned fine grinding zone 156. This gas allows the fine grains in the second partitioned fine grinding zone 156 to pass through quickly and fall into the discharge cylinder 10, thereby improving grinding efficiency. Furthermore, the ejected gas also cleans the inner wall of the grinding cylinder 1 in the second partitioned fine grinding zone 156, further enhancing grinding efficiency.

[0079] In addition, the third air outlet pipe 1673 can spray air onto the second magnetic plate 155 to remove the grains adhering to the second magnetic plate 155, thereby effectively improving the grinding effect of the grains.

[0080] The first air intake pipe 1661 and the second air intake pipe 1671 draw air into the first chamber 166 and the second chamber 167 respectively through the air passage 111;

[0081] Therefore, the long slide bar 16 in this device can not only drive the second rod 162 to move up and down to block foreign objects in the grain raw material to be ground, but also pump gas into the first air outlet pipe 1662 and the second air outlet pipe 1672 when the long slide bar 16 moves up and down, so as to remove the grain blocked on the fine grinding screen 143 and drive the fine grain raw material in the second fine grinding zone 156 to accelerate through the second fine grinding zone 156 and fall into the discharge cylinder 10.

[0082] This invention provides three areas for fine grinding of grain raw materials: a first fine grinding area 144, a second fine grinding area 156, and a clamping grinding component. This allows for the grinding of grain raw materials in a segmented, dispersed, and separate manner, effectively avoiding the heavy grinding burden caused by having only one grinding area in the prior art. Therefore, it not only solves the problem of thorough grinding but also improves grinding efficiency and reduces the grinding burden.

[0083] The first rod 131 and the second rod 162, which can rotate and move up and down, can effectively stir the grain raw material to be ground in the grinding cylinder 1, avoid jamming, and handle foreign objects in the grain raw material to be ground.

[0084] Furthermore, the long slide bar 16 in this device can not only drive the second rod 162 to move up and down to block foreign objects in the grain raw material to be ground, but also pump gas into the first air outlet pipe 1662 and the second air outlet pipe 1672 when the long slide bar 16 moves up and down, so as to remove the grain blocked on the fine grinding screen 143 and drive the fine grain raw material in the second fine grinding zone 156 to accelerate through the second fine grinding zone 156 and fall into the discharge cylinder 10.

[0085] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A grain-assisted milling device for feed preparation, comprising a milling cylinder (1), characterized in that, Also includes: A main shaft (11) is rotatably installed in the grinding cylinder (1). A first grinding wheel (14) and a second grinding wheel (15) are fixedly connected to the main shaft (11). A coarse grinding zone (141) is formed between the first grinding wheel (14) and the inner wall of the grinding cylinder (1). A filter screen (142) is fixedly connected inside the grinding cylinder (1). A fine grinding screen (143) is fixedly connected to the filter screen (142). The fine grinding screen (143) extends between the first grinding wheel (14) and the second grinding wheel (15). The fine grinding screen (143) forms a partitioned fine grinding zone (144) between the first grinding wheel (14) and the second grinding wheel (15). A material discharge channel (145) is provided on the second grinding wheel (15). The material discharge channel (145) passes through the end of the second grinding wheel (15) and is used to fine grind the raw material that has undergone coarse grinding. A clamping and grinding assembly is provided between the second grinding wheel (15) and the inner wall of the grinding cylinder (1) to clamp and grind the raw material when it passes through the clamping and grinding assembly. A second fine grinding zone (156) is formed between the lower wall (1502) of the second grinding wheel (15) and the grinding cylinder (1) to finely grind the raw material passing through the second fine grinding zone (156). The discharge cylinder (10) is located at the lower end of the grinding cylinder (1); A wide channel area (151) is formed between the second grinding wheel (15) and the grinding cylinder (1). The material clamping and grinding assembly is located in the wide channel area (151). The material clamping and grinding assembly includes a plurality of first magnetic plates (152) that are circumferentially mounted on the upper wall (1501) of the second grinding wheel (15) at equal intervals. A guide rod (153) is slidably connected to the grinding cylinder (1). A second magnetic plate (155) is fixedly connected to one end of the guide rod (153). A plurality of guide rods (153) and second magnetic plates (155) are circumferentially arranged. The guide rod (153) is connected to the grinding cylinder (1) by a spring (154). The first magnetic plates (152) and the second magnetic plates (155) are attracted to each other. A material drop zone (150) and a material discharge zone (1500) are formed between the second grinding wheel (15) and the grinding cylinder (1). The height of the second grinding wheel (15) is L, the height of the material drop zone (150) is L1, the height of the wide channel zone (151) is L2, the height of the second fine grinding zone (156) is L3, and the height of the material discharge zone (1500) is L4. Then the following constraint relationship exists: L = L1 + L2 + L3, L2=1.8L3=4L1, L4 = 1 / 10L; The width of the material discharge area (150) is W1, the width of the wide channel area (151) is W2, the width of the second partitioned fine grinding area (156) is W3, and the width of the discharge area (1500) is W4. Then the following constraint relationship exists: W2=W1=4W3=3W4.

2. The grain auxiliary milling device for feed preparation according to claim 1, characterized in that: The grinding cylinder (1) is fixedly connected to an upper support (13) and a lower support (112). The main shaft (11) is rotatably connected to the upper support (13) and the lower support (112). A motor (12) is installed on the grinding cylinder (1) and is connected to the main shaft (11).

3. The grain auxiliary grinding device for feed preparation according to claim 2, characterized in that: A first rod (131) is fixedly connected to the upper support (13), a crossbar (161) is provided on the first grinding wheel (14), and a second rod (162) is fixedly connected to the crossbar (161). The second rod (162) and the first rod (131) are arranged alternately to agitate the raw material in the upper end of the grinding cylinder (1) when the first grinding wheel (14) rotates through the cooperation of the second rod (162) and the first rod (131).

4. The grain auxiliary grinding device for feed preparation according to claim 3, characterized in that: The first grinding wheel (14) and the second grinding wheel (15) are circumferentially connected with a plurality of long sliding rods (16). The ends of the long sliding rods (16) are connected to the bottom of the second grinding wheel (15) by a tension spring (163). The crossbar (161) is connected to the long sliding rods (16) and is used to drive the second rod (162) to move up and down between the first rod (131) when the long sliding rods (16) slide back and forth.

5. The grain auxiliary milling device for feed preparation according to claim 4, characterized in that: An arc-shaped curved plate (132) is fixedly connected to the upper bracket (13), and one end of the long sliding rod (16) corresponds to the arc-shaped curved plate (132).

6. The grain auxiliary milling device for feed preparation according to claim 5, characterized in that: It also includes a first air inlet pipe (1661) and a first air outlet pipe (1662), with the first air outlet pipe (1662) facing the fine grinding screen (143).

7. The grain auxiliary grinding device for feed preparation according to claim 6, characterized in that: It also includes a second air inlet pipe (1671) and a second air outlet pipe (1672), the second air outlet pipe (1672) facing the second fine grinding zone (156), and a third air outlet pipe (1673) provided on the second air outlet pipe (1672), the third air outlet pipe (1673) facing the second magnetic plate (155).

8. The grain auxiliary milling device for feed preparation according to claim 7, characterized in that: The second grinding wheel (15) has multiple cavities (164) corresponding to the long slide rod (16). The long slide rod (16) is fixedly connected to a piston plate (165) within the cavity (164). The piston plate (165) is slidably connected within the cavity (164). The cavity (164) is divided into a first chamber (166) and a second chamber (167) by the piston plate (165). The first air inlet pipe (1661) and the first air outlet pipe (1662) are connected to the first chamber (166). One-way valves are provided on the air pipe (1661) and the first air outlet pipe (1662). The second air inlet pipe (1671) and the second air outlet pipe (1672) are connected to the second chamber (167). One-way valves are provided in the second air inlet pipe (1671) and the second air outlet pipe (1672). An air passage (111) is opened in the main shaft (11). The air passage (111) extends to the end of the main shaft (11). The first air inlet pipe (1661) and the second air inlet pipe (1671) are connected to the air passage (111).

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