Smashing and grinding unit

Abstract

The utility model relates to a crushing and grinding unit. Comprising a mounting bracket, an upper box body is mounted on the mounting bracket, a feeding hopper is mounted at the top of the upper box body, a grinding feeding hopper is mounted at the bottom of the upper box body, a grinding shell structure is arranged below the grinding feeding hopper, and a feeding guide structure is mounted between the grinding feeding hopper and the grinding shell structure; two groups of crushing rollers and two groups of grinding rollers are rotationally connected in the upper box body; a material distributing piece is arranged between the two groups of crushing rollers and the two groups of grinding rollers, and a grinding material blocking piece is arranged on the outer side of each grinding roller and below the material distributing piece; the device further comprises a smashing driving assembly and an upper driving assembly. A grinding rotating shaft is arranged in the grinding shell structure in a penetrating manner, and a lower grinding device is mounted on the grinding rotating shaft; a discharging filter plate and a centrifugal discharging assembly are mounted in the grinding shell structure, and the discharging slide way is mounted at a discharging opening formed in the lower portion of the grinding shell structure. Raw materials can be efficiently and fully crushed and ground, the working efficiency is high, and the rate of finished products is high; and meanwhile, the condition of material blockage can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of crushing equipment, in particular to a crushing and grinding machine group. Background Art

[0002] Food processing refers to the grain grinding, feed processing, vegetable oil and sugar processing, slaughtering and meat processing, aquatic product processing, as well as processing activities of vegetables, fruits, nuts and other foods that directly use agricultural, forestry, animal husbandry and fishery products as raw materials. With the development of modern industry, the requirements for food processing equipment are constantly increasing.

[0003] When food is processed, it is necessary to crush larger raw materials into smaller pieces, and then grind the small pieces into powder for subsequent processing operations. When performing the above-mentioned crushing and grinding operations, a crushing and grinding machine is required. The existing crushing and grinding machine has a relatively simple structure, mainly including a shell structure, in which a crushing assembly and a grinding assembly are installed in an upper and lower distribution, wherein the crushing assembly is mostly crushing rollers arranged in pairs, and the grinding assembly is mostly grinding rollers arranged in pairs.

[0004] In the actual working process, it is found that the above-mentioned existing crushing and grinding machines have certain defects. First, the existing crushing and grinding machines crush the raw materials first and then grind them. The grinding component is arranged below the crushing component, but the material that falls directly is easy to cause blockage at the grinding component; in addition, the existing crushing and grinding machines have a relatively simple structure, and the crushing and grinding are not thorough enough, and a large number of large-size particles that do not meet the requirements are easy to appear, the working efficiency is low and the yield is low. Therefore, it is urgent to design a crushing and grinding unit to solve the above problems. Utility Model Content

[0005] The utility model provides a crushing and grinding machine group with a reasonable structural design to solve the technical problems existing in the known technology. The utility model can perform efficient and sufficient crushing and grinding operations on raw materials, with high working efficiency and high yield.

[0006] The utility model adopts the technical scheme to solve the technical problems existing in the known technology: a crushing and grinding machine group includes a mounting bracket, an upper box body is mounted on the mounting bracket, a feeding hopper is mounted on the top of the upper box body, a grinding feeding hopper is mounted at the bottom open of the upper box body, a grinding shell structure is arranged below the grinding feeding hopper, and a feeding guide structure for guiding materials is arranged between the grinding feeding hopper and the grinding shell structure; two groups of matching crushing rollers are rotatably connected in the upper box body, and two groups of matching grinding rollers are arranged below the two groups of crushing rollers; a material dividing piece with a triangular structure is arranged between the two groups of crushing rollers and the two groups of grinding rollers, A grinding material stopper that cooperates with the gap of the grinding roller is arranged on the outside of each grinding roller and below the material dividing piece, and is used to guide the material between the two groups of grinding rollers; it also includes a crushing drive assembly and an upper drive assembly for driving the two groups of crushing rollers and the two groups of grinding rollers to rotate respectively; a grinding shaft that is rotatably connected to it and arranged longitudinally is passed through the grinding shell structure, a lower grinding device is installed on the grinding shaft, and it also includes a lower drive assembly for driving the grinding shaft to rotate; a discharge filter plate and a centrifugal discharge assembly located below the lower grinding device are installed in the grinding shell structure, and it also includes a discharge chute installed at the discharge port opened at the lower part of the grinding shell structure.

[0007] The advantages and positive effects of the utility model are as follows: the utility model provides a crushing and grinding unit, which can disperse the raw materials that fall after crushing to both sides by setting a material dividing piece, and cooperate with two sets of grinding blocking pieces to increase the rolling distance of the crushed raw materials, thereby reducing the amount of raw materials that fall between the two sets of grinding rollers per unit time, and solves the problem that the crushed raw materials directly fall and easily cause blockage between the two sets of grinding rollers; by setting a rotatable grinding shaft and a lower grinding device, in cooperation with a grinding shell structure, the crushed and ground raw materials can be ground again; by setting a feed guide structure, the materials ground by the two sets of grinding rollers can be dispersed to the surroundings and rolled, so that the rotating lower grinding device can be conveniently used to grind the materials again, thereby improving the working efficiency and yield of the crushing and grinding unit; by setting a discharge filter plate, the crushed and ground materials can be filtered, and by setting a centrifugal discharge component, the centrifugal force can be used to guide the materials out of the grinding shell structure for collection.

[0008] Preferably: the feed guide structure includes a guide shell connecting cylinder connected to the grinding feed hopper and the grinding shell structure, a guide conical shell that matches the inner wall clearance is arranged in the inner cavity of the guide shell connecting cylinder, and a plurality of groups of guide shell connecting blocks that connect the two into one are arranged between the bottom edge of the guide conical shell and the inner wall of the guide shell connecting cylinder, the plurality of groups of guide shell connecting blocks are evenly distributed along the circumferential direction, and a channel for material to pass through is arranged between two adjacent groups of guide shell connecting blocks.

[0009] Preferably: the lower grinding device includes a mounting sleeve connected to the grinding shaft, and a plurality of groups of radially distributed pivot links are fixedly connected to the outer peripheral wall of the mounting sleeve, a grinding wheel link is pivotally connected to the outer end of each pivot link, and a grinding wheel frictionally matched with the inner wall of the grinding shell structure is installed at the lower end of each grinding wheel link.

[0010] Preferably: it also includes a grinding base fixed to the lower part of the mounting bracket, and the grinding shell structure is installed on the grinding base; the grinding shell structure includes a grinding cylinder fixed to the grinding base, a plurality of mounting ribs are installed between the outer peripheral wall of the grinding cylinder and the grinding base, and a grinding cover is detachably installed at the top open end of the grinding cylinder; the discharge filter plate is installed in the grinding cylinder.

[0011] Preferably: the centrifugal discharge assembly includes a centrifugal discharge plate connected to the grinding shaft by screws, and the centrifugal discharge plate is located below the discharge filter plate; it also includes a discharge guide plate installed at the discharge port opened at the lower part of the grinding cylinder, the discharge guide plate is located above the centrifugal discharge plate, and its outer end is connected to the grinding cylinder.

[0012] Preferably: the outer end of the grinding stopper is fixedly connected to the inner wall of the upper box body, the inner end of the grinding stopper is an arc structure that is adapted to and clearance-matched with the outer circumference of the grinding roller, and an inclined surface with the outer end higher than the inner end is provided on the top surface of the grinding stopper.

[0013] Preferably, two groups of material discharge guide plates are provided above the discharge port of the upper box body, and the two groups of material discharge guide plates are distributed in an inverted figure eight shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main cross-sectional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the exploded structure of the lower body of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the centrifugal discharging assembly in the utility model.

[0017] In the figure: 1. mounting bracket; 2. lower drive assembly; 3. grinding shaft; 4. grinding base; 5. centrifugal discharge assembly; 5-1. discharge guide plate; 5-2. centrifugal discharge plate; 6. discharge slide; 7. discharge filter plate; 8. grinding shell structure; 8-1. mounting ribs; 8-2. grinding cylinder; 8-3. grinding cover; 9. lower grinding device; 9-1. grinding wheel; 9-2. grinding wheel connecting rod; 9-3. pivot connecting rod; 10. grinding feed hopper; 11. feed guide structure; 11-1. guide cone shell; 11-2. guide shell connecting block; 11-3. guide shell connecting cylinder; 12. feed guide plate; 13. grinding roller; 14. grinding material stopper; 15. material dividing member; 16. upper drive assembly; 17. crushing drive assembly; 18. crushing roller; 19. feed hopper; 20. upper box. DETAILED DESCRIPTION

[0018] In order to further understand the content, features and effects of the present invention, the following embodiments are described in detail as follows:

[0019] See also Figure 1 The pulverizing and grinding machine unit of the utility model includes a mounting bracket 1, an upper box body 20 is mounted on the mounting bracket 1, a feed hopper 19 is mounted on the top of the upper box body 20, a grinding feed hopper 10 is mounted at the bottom open of the upper box body 20, a grinding shell structure 8 is arranged below the grinding feed hopper 10, and a feed guide structure 11 for guiding materials is installed between the grinding feed hopper 10 and the grinding shell structure 8. It also includes a grinding base 4 fixed to the lower part of the mounting bracket 1, and the grinding shell structure 8 is mounted on the grinding base 4. In addition, this embodiment also includes two groups of material discharge guide plates 12 arranged above the discharge port of the upper box body 20, and the two groups of material discharge guide plates 12 are inverted eight-shaped distribution. Furthermore, a funnel-shaped guide hopper is installed at the upper feed port of the upper box body 20 to guide the material into between the two groups of crushing rollers 18; two groups of material baffles are arranged above the two groups of crushing rollers 18 to prevent the material from popping out to both sides and falling into the grinding feed hopper 10 when the two groups of crushing rollers 18 rotate in opposite directions to crush the material.

[0020] like Figure 2 As shown, the grinding shell structure 8 includes a grinding cylinder 8-2 fixed on the grinding base 4, a plurality of mounting ribs 8-1 are installed between the outer peripheral wall of the grinding cylinder 8-2 and the grinding base 4, and a grinding cover 8-3 is detachably installed at the top open end of the grinding cylinder 8-2; the grinding cylinder 8-2 and the grinding cover 8-3 are connected by flanges and bolts.

[0021] like Figure 1As shown, two matching groups of crushing rollers 18 are rotatably connected in the upper box body 20, and two matching groups of grinding rollers 13 are arranged below the two groups of crushing rollers 18; a material dividing piece 15 with a triangular structure is arranged between the two groups of crushing rollers 18 and the two groups of grinding rollers 13, and a grinding material blocking piece 14 that is gap-matched with the grinding roller 13 is arranged on the outside of each grinding roller 13 and below the material dividing piece 15, which is used to guide the material between the two groups of grinding rollers 13; this embodiment also includes a crushing drive assembly 17 and an upper drive assembly 16 for driving the two groups of crushing rollers 18 and the two groups of grinding rollers 13 to rotate respectively.

[0022] The upper driving assembly 16 includes a driving motor installed on the upper housing 20, and the output shaft of the driving motor is selectively connected between the two groups of grinding rollers 13. The end of each grinding roller 13 is keyed with a transmission gear, and the two groups of transmission gears are meshed.

[0023] The above-mentioned crushing drive assembly 17 includes a driving motor installed on the upper box body 20, and the output shaft of the driving motor is connected to one of the two groups of crushing rollers 18. A transmission gear is keyed to the end of each crushing roller 18, and the above-mentioned two groups of transmission gears are meshed.

[0024] like Figure 1 As shown, the outer end of the above-mentioned grinding stopper 14 is fixedly connected to the inner wall of the upper box body 20, and the inner end of the grinding stopper 14 is an arc structure that is adapted to and clearance-matched with the outer circumferential surface of the grinding roller 13, and an inclined surface with the outer end higher than the inner end is provided on the top surface of the grinding stopper 14.

[0025] See also Figure 1 A grinding shaft 3 is provided in the grinding shell structure 8 and is connected to the grinding shell structure 8 and is longitudinally arranged. A lower grinding device 9 is installed on the grinding shaft 3, and also includes a lower driving component 2 for driving the grinding shaft 3 to rotate. Figure 1 As shown, the above-mentioned lower driving assembly 2 includes a transversely arranged driving motor fixedly connected to the grinding base 4, and a bevel gear pair is installed between the output shaft of the driving motor and the lower end of the grinding shaft 3; the bevel gear pair includes an active bevel gear keyed to the output shaft of the driving motor, and also includes a driven bevel gear keyed to the lower end of the grinding shaft 3, and the above-mentioned active bevel gear and driven bevel gear are meshed.

[0026] like Figure 1 As shown, a discharge filter plate 7 and a centrifugal discharge assembly 5 located below the lower grinding device 9 are installed in the grinding shell structure 8, and a discharge chute 6 is installed at the discharge port opened at the lower part of the grinding shell structure 8. The above-mentioned discharge filter plate 7 is installed in the grinding cylinder 8-2. The above-mentioned discharge filter plate 7 is fixedly connected to the inner wall of the grinding cylinder 8-2, and the grinding shaft 3 passes through the discharge filter plate 7 and is rotatably connected thereto.

[0027] See also Figure 2 The above-mentioned feed guide structure 11 includes a guide shell connecting tube 11-3 connected to the milling feed hopper 10 and the grinding shell structure 8. The inner cavity of the guide shell connecting tube 11-3 is provided with a guide cone shell 11-1 that matches the inner wall clearance. Between the bottom edge of the guide cone shell 11-1 and the inner wall of the guide shell connecting tube 11-3, multiple groups of guide shell connecting blocks 11-2 that connect the two as one are provided. The multiple groups of guide shell connecting blocks 11-2 are evenly distributed along the circumference, and a channel for material to pass through is provided between two adjacent groups of guide shell connecting blocks 11-2. Among them, the upper end of the above-mentioned guide shell connecting tube 11-3 is connected to the discharge port of the milling feed hopper 10 through a flange; the lower end discharge port of the guide shell connecting tube 11-3 is connected to the upper port of the grinding shell structure 8.

[0028] like Figure 2 As shown, the lower grinding device 9 includes a mounting sleeve connected to the grinding shaft 3, and a plurality of groups of pivot links 9-3 distributed radially are fixedly connected to the outer peripheral wall of the mounting sleeve. In this embodiment, four groups of pivot links 9-3 are provided. A roller link 9-2 is pivotally connected to the outer end of each pivot link 9-3, and a grinding wheel 9-1 frictionally matched with the inner wall of the grinding shell structure 8 is installed at the lower end of each roller link 9-2. An open slot and a pin hole are provided at the outer end of each pivot link 9-3, and the upper end of the roller link 9-2 is inserted into the open slot and pivotally connected to the pivot link 9-3 through a pin.

[0029] See also Figure 3 In this embodiment, the above-mentioned centrifugal discharge assembly 5 includes a centrifugal discharge disc 5-2 connected to the grinding shaft 3 by screws, and the centrifugal discharge disc 5-2 is located below the discharge filter plate 7; it also includes a discharge guide plate 5-1 installed at the discharge port opened at the lower part of the grinding cylinder 8-2, and the discharge guide plate 5-1 is located above the centrifugal discharge disc 5-2, and its outer end is connected to the grinding cylinder 8-2. Among them, the above-mentioned centrifugal discharge disc 5-2 includes a sleeve portion connected to the grinding shaft 3 by screws, and also includes a disc part integrally formed on the sleeve portion. The centrifugal discharge disc 5-2 can rotate synchronously with the grinding shaft 3; the outer end of the discharge guide plate 5-1 is connected to the grinding cylinder 8-2 by screws, and the inner end of the discharge guide plate 5-1 is gap-matched with the sleeve portion of the centrifugal discharge disc 5-2. In addition, the above-mentioned discharge guide plate 5-1 and the radial direction of the centrifugal discharge disc 5-2 have a certain angle, so that the material thrown out by the centrifugal force flows out from the discharge port opened on the grinding cylinder 8-2.

[0030] Working principle:

[0031] In the actual working process, the raw materials are put into the upper box body 20 from the feed hopper 19, the raw materials fall along the guide hopper, and are concentrated between the two sets of relatively rotating crushing rollers 18 to be crushed, and the crushed materials fall and contact the dividing piece 15. The triangular structure of the dividing piece 15 disperses the falling crushed raw materials to both sides, and the crushed raw materials roll along the inclined surface of the dividing piece 15, thereby increasing the rolling distance of the crushed raw materials, thereby reducing the raw materials falling between the two sets of grinding rollers 13 per unit time; the raw materials after passing through the dividing piece 15 roll along the top bevel of the grinding stopper 14 and enter between the two grinding rollers 13, and are ground by the two relatively rotating grinding rollers 13, and the ground materials fall from the grinding feed hopper 10 to the feed guide structure 11, and are fed into the feed guide structure 12 by the grinding feed hopper 10. The guide conical shells 11-1 in 11 are dispersed and fall from between the two groups of guide shell connecting blocks 11-2 into the grinding shell structure 8. The rotating grinding shaft 3 can drive the lower grinding device 9 installed thereon to rotate. During the rotation process, the grinding wheels 9-1 and the grinding cylinder 8-2 in the lower grinding device 9 cooperate with each other to grind the crushed materials falling into the grinding shell structure 8 again. The ground materials fall onto the rotating centrifugal discharge disc 5-2 after screening by the discharge filter plate 7 and are thrown outwards under the action of centrifugal force. The thrown materials are pushed out from the discharge port opened at the bottom of the grinding cylinder 8-2 under the blocking and guiding action of the discharge guide plate 5-1 and slide down along the discharge chute 6. A collection box for collecting materials can be placed under the discharge chute 6.

Claims

1. A crushing and grinding unit, characterized in that: The invention comprises a mounting bracket (1), an upper box body (20) is mounted on the mounting bracket (1), a feed hopper (19) is mounted on the top of the upper box body (20), a grinding feed hopper (10) is mounted at the bottom open portion of the upper box body (20), a grinding shell structure (8) is arranged below the grinding feed hopper (10), and a feed guide structure (11) for guiding materials is arranged between the grinding feed hopper (10) and the grinding shell structure (8); two groups of matching crushing rollers (18) are rotatably connected in the upper box body (20), and two groups of matching grinding rollers (13) are arranged below the two groups of crushing rollers (18); a material dividing piece (15) in a triangular structure is arranged between the two groups of crushing rollers (18) and the two groups of grinding rollers (13), and a material dividing piece (15) in a triangular structure is arranged on the outer side of each grinding roller (13) and the material dividing piece (11). 5), a grinding material stopper (14) which is in clearance fit with the grinding roller (13) is arranged below the two groups of grinding rollers (13), and is used to guide the material into between the two groups of grinding rollers (13); it also includes a grinding drive assembly (17) and an upper drive assembly (16) which are respectively used to drive the two groups of crushing rollers (18) and the two groups of grinding rollers (13) to rotate; a grinding shaft (3) which is rotatably connected with the grinding shaft (8) and is arranged longitudinally is passed through the grinding shell structure (8), a lower grinding device (9) is installed on the grinding shaft (3), and it also includes a lower drive assembly (2) for driving the grinding shaft (3) to rotate; a discharge filter plate (7) and a centrifugal discharge assembly (5) located below the lower grinding device (9) are installed in the grinding shell structure (8), and it also includes a discharge chute (6) installed at the discharge port opened at the lower part of the grinding shell structure (8).

2. The crushing and grinding unit according to claim 1, characterized in that: The feed guide structure (11) comprises a guide shell connecting cylinder (11-3) connected to a grinding feed hopper (10) and a grinding shell structure (8); a guide conical shell (11-1) is arranged in the inner cavity of the guide shell connecting cylinder (11-3) and is matched with the inner wall thereof; a plurality of groups of guide shell connecting blocks (11-2) are arranged between the bottom edge of the guide conical shell (11-1) and the inner wall of the guide shell connecting cylinder (11-3) to connect the two as a whole; the plurality of groups of guide shell connecting blocks (11-2) are evenly distributed along the circumferential direction; and a passage for material to pass through is arranged between two adjacent groups of guide shell connecting blocks (11-2).

3. The crushing and grinding unit according to claim 1, characterized in that: The lower grinding device (9) comprises a mounting sleeve connected to the grinding shaft (3), a plurality of radially distributed pivot links (9-3) are fixedly connected to the outer peripheral wall of the mounting sleeve, a grinding wheel link (9-2) is pivotally connected to the outer end of each pivot link (9-3), and a grinding wheel (9-1) frictionally matched with the inner wall of the grinding shell structure (8) is mounted on the lower end of each grinding wheel link (9-2).

4. The crushing and grinding unit according to claim 1, characterized in that: The invention also comprises a grinding base (4) fixedly connected to the lower part of the mounting bracket (1), and a grinding shell structure (8) mounted on the grinding base (4); the grinding shell structure (8) comprises a grinding cylinder (8-2) fixedly connected to the grinding base (4), a plurality of groups of mounting ribs (8-1) are mounted between the outer peripheral wall of the grinding cylinder (8-2) and the grinding base (4), and a grinding cover shell (8-3) is detachably mounted on the top open end of the grinding cylinder (8-2); and a discharge filter plate (7) is mounted in the grinding cylinder (8-2).

5. The crushing and grinding unit according to claim 1, characterized in that: The centrifugal discharge assembly (5) comprises a centrifugal discharge disc (5-2) connected to the grinding shaft (3) by screws, the centrifugal discharge disc (5-2) being located below the discharge filter plate (7); and also comprises a discharge guide plate (5-1) installed at a discharge port opened at the bottom of the grinding cylinder (8-2), the discharge guide plate (5-1) being located above the centrifugal discharge disc (5-2), and the outer end portion of which is connected to the grinding cylinder (8-2).

6. The crushing and grinding machine set according to claim 1, characterized in that: The outer end of the grinding stopper (14) is fixedly connected to the inner wall of the upper box body (20), and the inner end of the grinding stopper (14) is an arc-shaped structure that is compatible with the outer peripheral surface of the grinding roller (13) and has a clearance fit. The top surface of the grinding stopper (14) is provided with an inclined surface with the outer end higher than the inner end.

7. The crushing and grinding unit according to claim 1, characterized in that: It also includes two groups of material discharge guide plates (12) arranged above the discharge port of the upper box body (20), and the two groups of material discharge guide plates (12) are distributed in an inverted figure eight shape.

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