A rapeseed cake grinding device

Abstract

The embodiment of the application provides a rapeseed residue grinding device, and relates to the rapeseed residue processing technical field.The rapeseed residue grinding device comprises a crushing box, a feeding hopper with a blocking cover is communicated with the top of the crushing box in a diagonal manner, a material guide frame with a vertical groove is embedded at the center of the inner cavity of the crushing box, material guide covers are communicated with the two sides of the crushing box, a feeding frame with a solenoid valve is communicated with the bottom end of the material guide cover, and the inner end of the feeding frame is communicated with a grinding box fixedly matched with the crushing box;an outer cover is fixedly connected to the outer side of the material guide cover, supporting leg frames are arranged on the bottom of the grinding box, extrusion assemblies for extruding and feeding the material guide cover are arranged on the two sides of the inner cavity of the crushing box, the extrusion assembly comprises a servo motor fixed to the top of the crushing box, a reciprocating screw rod fixed to the output shaft of the servo motor, and the reciprocating screw rod is rotationally matched with the center of the material guide frame.The bidirectional extrusion crushing mode is adopted to realize efficient and sufficient grinding effect of the rapeseed residue.

Description

Technical Field

[0001] The invention belongs to the technical field of rapeseed residue processing, and in particular relates to a rapeseed residue grinding device. Background Art

[0002] Rapeseed residue is a byproduct of rapeseed oil extraction. It has multiple uses and economic value. It appears as yellow or light brown fragments or coarse powder and contains 35%-40% crude protein, amino acids, minerals and cellulose. It is a common material for organic fertilizer and straw return to the field. During the deep processing of rapeseed, it is further processed through grinding equipment.

[0003] The prior art (Patent No. CN209034520U, Patent Name: A Rapeseed Residue Grinding Device) has an ingenious structure, is easy to use, facilitates grinding and crushing of rapeseed residue, has a flexible processing capacity, achieves good grinding and crushing effects, and has low processing costs. During the implementation of this technical solution, it was discovered that the prior art has at least the following problems:

[0004] Before rapeseed residue is produced into fertilizer, it is necessary to grind the agglomerated and caked rapeseed residue. However, the grinding methods currently used mostly use grinding discs to grind the rapeseed residue directly. Due to the presence of oily substances in rapeseed residue, it is easy to stick during grinding, and small areas of agglomeration and cake formation will still occur, resulting in insufficient grinding of the rapeseed residue. Summary of the Invention

[0005] The present application aims to at least address one of the technical issues in the prior art, namely, the inability to achieve efficient and sufficient grinding of rapeseed residue using a bidirectional extrusion crushing method, the tendency for small-area agglomeration and cake formation, and the resulting insufficient grinding of the rapeseed residue. To this end, the present application proposes a rapeseed residue grinding device.

[0006] To achieve the above purpose, the specific technical solutions of the present invention are as follows:

[0007] A rapeseed residue grinding device comprises a crushing box, wherein the top of the crushing box is diagonally connected to a feed hopper with a blocking cover, and a material guide rack with a vertical slot is embedded in the center of the inner cavity of the crushing box, both sides of the crushing box are connected to a material guide cover, and the bottom end of the material guide cover is connected to a feeding rack with a solenoid valve, and the inner end of the feeding rack is connected to a grinding box fixedly matched with the crushing box;

[0008] The outer side of the material guide cover is fixedly connected to the outer side, and a leg frame is provided at the bottom of the grinding box. Both sides of the inner cavity of the crushing box are provided with extrusion components for extruding and feeding with the material guide cover, and the extrusion components include a servo motor fixed to the top of the crushing box, and a reciprocating screw fixed to the output shaft of the servo motor, and rotating with the center of the material guide frame;

[0009] The inner cavity of the grinding box is respectively provided with a first grinding assembly and a second grinding assembly, and the first grinding assembly includes an extension rod fixed at the bottom of the reciprocating screw rod, and rotatably cooperates with the crushing box and the grinding box, and an upper grinding disc fixed at the bottom of the extension rod, and rotatably cooperates with the grinding box. The second grinding assembly includes a main bevel gear fixed on the output shaft of the servo motor, and a bevel gear rack meshed with the outside of the main bevel gear.

[0010] Preferably: the extrusion assembly also includes a screw sleeve threadedly connected to the reciprocating screw, and push-pull arms are hinged on both sides of the screw sleeve through a hinge joint, the other end of the push-pull arm is hinged with an extrusion plate that slides with the crushing box, and the outer array of the extrusion plate is fixed with extrusion teeth, and the side of the crushing box close to the material guide cover is embedded with a forming plate that extrudes the crushed material with the extrusion teeth.

[0011] Preferably: the first grinding assembly also includes an upper grinding head fixed triangularly and equidistantly on the upper grinding disc, and a special-shaped ring is fixedly connected to the top of the inner cavity of the grinding box, the bottom of the special-shaped ring is rollingly connected to a universal ball, and the bottom of the universal ball is fixedly connected to a slide that slides with the upper grinding disc, the slide is provided with a compression spring that is fixed with the upper grinding disc, and the slide and the upper grinding head are staggered.

[0012] Preferably: the second grinding assembly also includes a secondary bevel gear meshed with the outside of the bevel gear frame, and the bottom of the secondary bevel gear is fixedly connected to a long rotating rod, the bottom of the long rotating rod is fixedly connected to a differential gear, and the inner side of the differential gear is meshed with a single-sided gear ring that rotates with the support leg frame, the inner side of the single-sided gear ring is fixedly connected to a lower grinding disc used in conjunction with the upper grinding disc, and the top triangle of the lower grinding disc is fixed with a lower grinding head used in conjunction with the upper grinding head.

[0013] Preferably, a slide groove is transversely provided on the top of the inner cavity of the crushing box, and a slider fixedly matched with the extrusion plate is slidably connected to the inner cavity of the slide groove.

[0014] Preferably, the forming plate is provided with forming holes in an array, and the ends of the forming holes are provided with arc chamfers and are distributed in a one-to-one alignment with the extrusion teeth.

[0015] Preferably, a hidden groove is provided at the bottom of the upper grinding disc, and a crushing plate fixedly matched with the slide slides in the hidden groove, and crushing teeth are fixed in an array at the bottom of the crushing plate.

[0016] Preferably, the upper triangle of the lower grinding disc is provided with discharge openings at equal intervals, which are staggered with the lower grinding head, and a sieve plate is embedded in the discharge opening.

[0017] Preferably, the bottom end of the lower grinding disc near the discharge port is connected to a discharge rack, and the inner end of the discharge rack is connected to a discharge pipe with a one-way valve.

[0018] Preferably, the grinding box is provided with an annular edge on one side close to the feeding rack, and an annular sliding mouth fixedly matched with the single-sided gear ring is rotatably connected in the annular edge.

[0019] The rapeseed residue grinding device of the present invention has the following advantages:

[0020] 1. A rapeseed residue grinding device, a servo motor drives the reciprocating screw to rotate, the reciprocating screw drives two push-pull arms through the screw sleeve to push and pull inward and outward, the two push-pull arms drive two sets of extrusion plates to slide back and forth in the crushing box, and drive the extrusion teeth to reciprocate and extrude toward the forming holes on the two sets of forming plates, so as to achieve a reciprocating extrusion and crushing effect on the rapeseed residue added to the crushing box, completing the preliminary crushing and refinement work of the rapeseed residue before grinding.

[0021] 2. This rapeseed residue grinding device, the reciprocating screw drives the upper grinding head on the upper grinding disk through the extension rod to grind the rapeseed residue arriving at the grinding box, and the compression spring plays an elastic buffering and elastic reset role on the slide, and the slide that rotates synchronously with the upper grinding disk drives the universal ball to roll on the special-shaped ring. Since the special-shaped ring adopts a concave and convex wavy design, there is a height difference, which forces the slide on the universal ball to drive the crushing teeth on the crushing plate to move up and down, which plays an auxiliary crushing and turning role on the rapeseed residue in the upper grinding head area to prevent the rapeseed residue from sticking and forming cakes.

[0022] 3. In this rapeseed residue grinding device, the main bevel gear drives two sets of short rotating rods on the slave bevel gears to rotate, and the two short rotating rods drive two sets of slave synchronous wheels to rotate accordingly through the synchronous belt on the main synchronous wheel. The two sets of slave synchronous wheels drive two sets of cutting knives and guide blades to rotate in the guide cover through two rotating shafts. The cutting knives first cut off the crushed rapeseed residue extruded from the forming plate to prevent adhesion, and then the guide blades guide the rapeseed residue reaching the guide cover to the feed rack to prevent blocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic structural diagram of a rapeseed residue grinding device according to the present invention;

[0025] Figure 2 This is a cross-sectional view of the structure of a rapeseed residue grinding device of the present invention;

[0026] Figure 3 This is an internal view of the initial state of the structure of a rapeseed residue grinding device of the present invention;

[0027] Figure 4 This is an internal view of the structure of a rapeseed residue grinding device of the present invention in a working state;

[0028] Figure 5 This is a diagram showing the initial state of the extrusion assembly structure of the present invention;

[0029] Figure 6 This is a diagram showing the working state of the extrusion assembly structure of the present invention;

[0030] Figure 7 A partial bottom view of the extrusion assembly structure of the present invention;

[0031] Figure 8 It is a bottom-view cross-sectional view of the crushing box, material guide rack, material guide cover and feeding rack structure of the present invention;

[0032] Figure 9 A top view of the first grinding assembly and the second grinding assembly of the present invention;

[0033] Figure 10 A bottom view of the first grinding assembly structure of the present invention;

[0034] Figure 11 This is an exploded view of the first grinding assembly structure of the present invention;

[0035] Figure 12 A partially exploded view of the first grinding assembly structure of the present invention;

[0036] Figure 13 A side view of the second grinding assembly structure of the present invention;

[0037] Figure 14 A partial exploded view of the second grinding assembly structure of the present invention;

[0038] Figure 15 A partial exploded view of the grinding box and the second grinding assembly of the present invention;

[0039] Figure 16 A side view of the cutting assembly structure of the present invention;

[0040] Figure 17 It is a partial rear view of the cutting assembly structure of the present invention.

[0041] Explanation of the markings in the figure: 1. Crushing box; 2. Guide rack; 3. Guide cover; 4. Feed rack; 5. Grinding box; 6. Outer cover; 7. Leg rack; 81. Servo motor; 82. Reciprocating screw; 83. Screw sleeve; 84. Push-pull arm; 85. Extrusion plate; 86. Extrusion teeth; 87. Forming plate; 91. Extension rod; 92. Upper grinding disc; 93. Upper grinding head; 94. Special-shaped ring; 95. Universal ball bearing; 96. Slide; 97. Compression spring; 101. Main bevel gear; 102. Bevel gear rack; 103. Secondary bevel gear Gear; 104, long rotating rod; 105, differential gear; 106, single-sided ring gear; 107, lower grinding disc; 108, lower grinding head; 111, slave bevel gear; 112, short rotating rod; 113, main synchronous wheel; 114, slave synchronous wheel; 115, rotating shaft; 116, cutting knife; 117, guide blade; 12, chute; 13, slider; 14, crushing plate; 15, crushing teeth; 16, screening plate; 17, discharge port; 18, discharge rack; 19, discharge pipe; 20, annular edge; 21, annular slide. DETAILED DESCRIPTION

[0042] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments:

[0043] like Figures 1-17 As shown, a rapeseed residue grinding device of the present invention comprises a crushing box 1, the top of the crushing box 1 is diagonally connected to a feed hopper with a blocking cover, and a guide frame 2 with a vertical slot is embedded in the center of the inner cavity of the crushing box 1, both sides of the crushing box 1 are connected to a guide cover 3, and the bottom end of the guide cover 3 is connected to a feed frame 4 with a solenoid valve, and the inner end of the feed frame 4 is connected to a grinding box 5 fixedly matched with the crushing box 1;

[0044] The outer side of the material guide cover 3 is fixedly connected to the outer side cover 6, and the bottom of the grinding box 5 is provided with a leg frame 7. Both sides of the inner cavity of the crushing box 1 are provided with an extrusion component for extruding and feeding with the material guide cover 3, and the extrusion component includes a servo motor 81 fixed to the top of the crushing box 1, and a reciprocating screw rod 82 fixed to the output shaft of the servo motor 81, and rotating with the center of the material guide frame 2, to achieve a reciprocating extrusion and crushing effect on the rapeseed residue added to the crushing box 1, completing the preliminary crushing and refining work of the rapeseed residue before grinding;

[0045] The inner cavity of the grinding box 5 is respectively provided with a first grinding assembly and a second grinding assembly, and the first grinding assembly includes an extension rod 91 fixed to the bottom of the reciprocating screw 82, and rotatably cooperates with the crushing box 1 and the grinding box 5, and an upper grinding disc 92 fixed to the bottom of the extension rod 91, and rotatably cooperates with the grinding box 5, to assist in crushing and turning the rapeseed residue in the area of ​​the upper grinding head 93, so as to prevent the rapeseed residue from sticking and forming cakes. The second grinding assembly includes a main bevel gear 101 fixed on the output shaft of the servo motor 81, and a bevel gear rack 102 meshing with the outside of the main bevel gear 101, to achieve a relative differential grinding effect on the rapeseed residue arriving in the grinding box 5, thereby further improving the fineness of the grinding of the rapeseed residue.

[0046] like Figure 5-Figure 15 As shown, the extrusion assembly also includes a screw sleeve 83 threadedly connected to the reciprocating screw rod 82, and both sides of the screw sleeve 83 are hinged with push-pull arms 84 through hinge joints. The servo motor 81 drives the reciprocating screw rod 82 to rotate, and the reciprocating screw rod 82 drives the two push-pull arms 84 to push and pull inward and outward through the screw sleeve 83. The other end of the push-pull arm 84 is hinged with an extrusion plate 85 that slides with the crushing box 1. The two push-pull arms 84 drive the two groups of extrusion plates 85 to slide back and forth in the crushing box 1, and the outer array of the extrusion plate 85 is fixed with extrusion teeth 86. The side of the crushing box 1 close to the material guide cover 3 is embedded with a forming plate 87 that extrudes the crushed material with the extrusion teeth 86. The two groups of extrusion plates 85 drive the extrusion teeth 86 to reciprocate and extrude toward the forming holes on the two groups of forming plates 87, thereby achieving a reciprocating extrusion and crushing effect on the rapeseed residue added to the crushing box 1, completing the preliminary crushing and refining work before the rapeseed residue is ground;

[0047] A slide groove 12 is horizontally provided at the top of the inner cavity of the crushing box 1, and the inner cavity of the slide groove 12 is slidably connected to a slider 13 fixedly matched with the extrusion plate 85, which serves as a sliding limiter for the extrusion plate 85 to prevent the extrusion plate 85 from tilting and getting stuck when sliding in the crushing box 1, which is beneficial to the extrusion of rapeseed residue. An array of forming holes is provided on the forming plate 87, and the ports of the forming holes are provided with arc chamfers, and are distributed in a one-to-one alignment with the extrusion teeth 86, which is beneficial for the extrusion teeth 86 to extrude and crush the rapeseed residue through the forming holes on the extrusion plate 85.

[0048] The first grinding assembly also includes an upper grinding head 93 fixed triangularly and equidistantly on the upper grinding disc 92. The reciprocating screw 82 drives the upper grinding head 93 on the upper grinding disc 92 through the extension rod 91 to grind the rapeseed residue arriving in the grinding box 5. The top of the inner cavity of the grinding box 5 is fixedly connected to a special-shaped ring 94. The bottom of the special-shaped ring 94 is rollingly connected to a universal ball 95. The bottom of the universal ball 95 is fixedly connected to a slide 96 that slides with the upper grinding disc 92. The compression spring 97 plays an elastic buffering and elastic reset role on the slide 96. The slide 96 that rotates synchronously with the upper grinding disc 92 drives the universal ball 95 to roll on the special-shaped ring 94. The slide 96 is provided with a compression spring 97 that is fixedly matched with the upper grinding disc 92, and the slide 96 is staggered with the upper grinding head 93. Since the special-shaped ring 94 adopts a concave and convex wavy design, there is a height difference, which forces the slide 96 on the universal ball 95 to drive the crushing teeth 15 on the crushing plate 14 to move up and down, thereby assisting in crushing and turning the rapeseed residue in the area of ​​the upper grinding head 93 to prevent the rapeseed residue from sticking and forming cakes.

[0049] A hidden groove is provided at the bottom of the upper grinding disc 92, and a crushing plate 14 fixedly matched with the slide 96 slides in the hidden groove. Crushing teeth 15 are fixed to the bottom array of the crushing plate 14. The crushing teeth 15 on the crushing plate 14 are driven by the slide 96 sliding up and down to assist in crushing and turning the rapeseed residue in the grinding area of ​​the upper grinding disc 92.

[0050] The second grinding assembly also includes a secondary bevel gear 103 meshed with the outside of the bevel gear frame 102, and the secondary bevel gear 103 on the bevel gear frame 102 is driven by the main bevel gear 101 to rotate successively, and the bottom of the secondary bevel gear 103 is fixedly connected to a long rotating rod 104, and the bottom of the long rotating rod 104 is fixedly connected to a differential gear 105, and the secondary bevel gear 103 drives the differential gear 105 to rotate through the long rotating rod 104, and the inner side of the differential gear 105 is meshed with a single-sided gear ring 106 that rotates with the support leg frame 7. The grinding box 5 is provided with an annular edge 20 on the side close to the feed rack 4, and the annular edge 20 is rotatably connected to the single-sided gear ring 106. The annular sliding mouth 21 fixedly matched with the ring 106 plays the role of rotational support for the single-sided gear ring 106, thereby improving the rotational stability of the single-sided gear ring 106. The inner side of the single-sided gear ring 106 is fixedly connected to a lower grinding disc 107 used in conjunction with the upper grinding disc 92. The differential gear 105 drives the lower grinding disc 107 in the single-sided gear ring 106 to rotate, and the top triangle of the lower grinding disc 107 is fixed with a lower grinding head 108 used in conjunction with the upper grinding head 93. The lower grinding head 108 is combined with the upper grinding head 93 to achieve a relative differential grinding effect on the rapeseed residue arriving in the grinding box 5, thereby further improving the fineness of the grinding of the rapeseed residue.

[0051] The upper triangle of the lower grinding disc 107 is equidistantly provided with discharge ports 17, which are staggered with the lower grinding head 108, and a sieve plate 16 is embedded in the discharge port 17 to screen the ground rapeseed residue so that the ground rapeseed residue meets the standards. The bottom end of the lower grinding disc 107 near the discharge port 17 is connected to a discharge rack 18, and the inner end of the discharge rack 18 is connected to a discharge pipe 19 with a one-way valve to discharge the ground rapeseed residue in different areas to avoid blockage.

[0052] like Figure 16-17 As shown, during the grinding of rapeseed residue, the rapeseed residue after extrusion and crushing cannot be cut, refined and diverted to prevent blocking. A cutting assembly used in conjunction with the guide cover 3 and the forming plate 87 is provided in the outer cover 6, and the cutting assembly includes a slave bevel gear 111 meshed with both sides of the main bevel gear 101. The outer side of the slave bevel gear 111 is fixedly connected to a main synchronous wheel 113 that rotates with the outer cover 6 through a short rotating rod 112, and the bottom of the main synchronous wheel 113 is connected to a slave synchronous wheel 114 through a synchronous belt drive. The main bevel gear 101 first drives the two sets of short rotating rods 112 on the slave bevel gears 111 to rotate, and the two short rotating rods 112 drives two sets of slave synchronous wheels 114 to rotate through the synchronous belt on the main synchronous wheel 113. The inner side of the slave synchronous wheel 114 is fixedly connected with a cutting knife 116 and a guide leaf 117 used in conjunction with the forming plate 87 and the guide cover 3 through a rotating shaft 115. The two sets of slave synchronous wheels 114 drive two sets of cutting knives 116 and guide leaves 117 to rotate in the guide cover 3 through two rotating shafts 115. The cutting knife 116 first cuts off the crushed rapeseed residue squeezed out of the forming plate 87 to prevent adhesion, and then the guide leaf 117 guides the rapeseed residue reaching the guide cover 3 to the feeding rack 4 to prevent blocking.

[0053] The working principle of a rapeseed residue grinding device is as follows: first, the rapeseed residue is guided from the feed hopper through the guide frame 2 and then enters the areas on both sides of the inner cavity of the crushing box 1. Then, the servo motor 81 is controlled to start and drive the reciprocating screw 82 and the main bevel gear 101 to rotate synchronously. The reciprocating screw 82 drives the screw sleeve 83 to move up and down accordingly. The screw sleeve 83 drives the extrusion plate 85 to slide back and forth on both sides of the inner cavity of the crushing box 1 through two push-pull arms 84. The sliding extrusion plate 85 squeezes the rapeseed residue in the areas on both sides of the inner cavity of the crushing box 1 to the position of the forming plate 87, and the rapeseed residue passing through the forming hole area of ​​the forming plate 87 is squeezed into crushed materials by the extrusion teeth 86.

[0054] At the same time, the main bevel gear 101 drives the two sets of slave bevel gears 111 to rotate, and the two sets of slave bevel gears 111 drive the two sets of main synchronous wheels 113 to rotate through two short rotating rods 112. The two sets of main synchronous wheels 113 drive the rotating shafts 115 on the two sets of slave synchronous wheels 114 to rotate through two synchronous belts. The two rotating shafts 115 drive the two sets of cutting knives 116 and the guide blades 117 to rotate accordingly. The two sets of cutting knives 116 in the rotating state cut the crushed rapeseed residue extruded from the forming plate 87 to prevent adhesion, and the guide blades 117 then guide the rapeseed residue reaching the guide cover 3 to the feeding rack 4 to prevent blocking.

[0055] The rapeseed residue in the two sets of material guide covers 3 is delivered to the grinding areas of the upper grinding disc 92 and the lower grinding disc 107 in the grinding box 5 through the two sets of feeding racks 4. The reciprocating screw 82 drives the upper grinding disc 92 to rotate through the extension rod 91. At the same time, the main bevel gear 101 drives the secondary bevel gear 103 on the bevel gear rack 102 to rotate successively. The secondary bevel gear 103 drives the differential gear 105 to rotate accordingly through the long rotating rod 104. The differential gear 105 drives the lower grinding disc 107 in the single-sided ring gear 106 to rotate at a differential speed. The rotating upper grinding disc 92 drives the upper grinding head 93, and the lower grinding disc 107 drives the lower grinding head 108 to perform bidirectional differential grinding of the rapeseed residue.

[0056] During this period, the rotating upper grinding disc 92 drives the universal ball 95 to roll on the fixed special-shaped ring 94 through the slide 96, and the compression spring 97 plays an elastic buffering and elastic reset role on the slide 96. Since the special-shaped ring 94 adopts a concave and convex wavy design, there is a height difference, forcing the slide 96 on the universal ball 95 to drive the crushing teeth 15 on the crushing plate 14 to move up and down, which plays an auxiliary crushing and turning role on the rapeseed residue in the area of ​​the upper grinding head 93 until the rapeseed residue is ground into place. The rapeseed residue that meets the standards passes through the three-component sieve plate 16 to reach the discharge port 17, and is then discharged by the discharge pipe 19 on the discharge rack 18. The rapeseed residue that does not meet the standards remains in the grinding area of ​​the upper grinding disc 92 and the lower grinding disc 107, and continues to be ground until all the rapeseed residue has completed the grinding work.

[0057] It should be noted that the specific model and specifications of the servo motor 81 need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be repeated in detail.

[0058] The power supply circuit of the servo motor 81 is clear to those skilled in the art and will not be described in detail here.

[0059] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A rapeseed residue grinding device, comprising a crushing box, characterized in that: The top of the crushing box is diagonally connected to a feed hopper with a blocking cover, and a guide rack with a vertical slot is embedded in the center of the inner cavity of the crushing box. Both sides of the crushing box are connected to a guide cover, and the bottom end of the guide cover is connected to a feeding rack with a solenoid valve, and the inner end of the feeding rack is connected to a grinding box fixedly matched with the crushing box; The outer side of the material guide cover is fixedly connected to the outer side, and a leg frame is provided at the bottom of the grinding box. Both sides of the inner cavity of the crushing box are provided with extrusion components for extruding and feeding with the material guide cover, and the extrusion components include a servo motor fixed to the top of the crushing box, and a reciprocating screw fixed to the output shaft of the servo motor, and rotating with the center of the material guide frame; The inner cavity of the grinding box is respectively provided with a first grinding assembly and a second grinding assembly, and the first grinding assembly includes an extension rod fixed to the bottom of the reciprocating screw rod, and rotatably cooperates with the crushing box and the grinding box, and an upper grinding disc fixed to the bottom of the extension rod, and rotatably cooperates with the grinding box, the second grinding assembly includes a main bevel gear fixed to the output shaft of the servo motor, and a bevel gear rack meshed with the outer side of the main bevel gear, the extrusion assembly also includes a screw sleeve threadedly connected to the reciprocating screw rod, and both sides of the screw sleeve are hinged with push-pull arms through hinge joints, the other end of the push-pull arm is hinged with an extrusion plate that slides with the crushing box, and the outer array of the extrusion plate is fixed with extrusion teeth, the crushing box is embedded with a forming plate that extrudes crushed materials with the extrusion teeth on one side close to the material guide cover, the first grinding assembly also includes The upper grinding head is fixed on the upper grinding disc at equal intervals in the triangle, and the top of the inner cavity of the grinding box is fixedly connected with a special-shaped ring, the bottom of the special-shaped ring is rollingly connected with a universal ball, and the bottom of the universal ball is fixedly connected to a slide that slides with the upper grinding disc, and the slide is provided with a compression spring that is fixed with the upper grinding disc, and the slide is staggered with the upper grinding head. The second grinding assembly also includes a secondary bevel gear meshed with the outside of the bevel gear frame, and the bottom of the secondary bevel gear is fixedly connected with a long rotating rod, the bottom of the long rotating rod is fixedly connected with a differential gear, and the inner side of the differential gear is meshed with a single-sided gear ring that rotates with the support leg frame, the inner side of the single-sided gear ring is fixedly connected with a lower grinding disc used in combination with the upper grinding disc, and the top triangle of the lower grinding disc is fixed with a lower grinding head used in combination with the upper grinding head.

2. The rapeseed residue grinding device according to claim 1, characterized in that: A slide groove is transversely provided on the top of the inner cavity of the crushing box, and the inner cavity of the slide groove is slidably connected with a sliding block fixedly matched with the extrusion plate.

3. The rapeseed residue grinding device according to claim 2, characterized in that: The forming plate is provided with forming holes in an array, and the ends of the forming holes are provided with arc chamfers and are distributed in a one-to-one alignment with the extrusion teeth.

4. The rapeseed residue grinding device according to claim 3, characterized in that: A hidden groove is provided at the bottom of the upper grinding disc, and a crushing plate fixedly matched with the slide frame slides in the hidden groove, and crushing teeth are fixed in an array at the bottom of the crushing plate.

5. The rapeseed residue grinding device according to claim 4, characterized in that: The upper triangle of the lower grinding disc is equidistantly provided with discharge openings, which are staggered with the lower grinding head, and a screening plate is embedded in the discharge openings.

6. The rapeseed residue grinding device according to claim 5, characterized in that: The bottom end of the lower grinding disc close to the discharge port is connected to a discharge rack, and the inner end of the discharge rack is connected to a discharge pipe with a one-way valve.

7. The rapeseed residue grinding device according to claim 6, characterized in that: An annular edge is provided on one side of the grinding box close to the feeding rack, and an annular sliding port which is rotatably connected in the annular edge and fixedly matched with the single-sided gear ring is provided.

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