Grinding roller for malt crusher

Abstract

The utility model discloses a grinding roller, and particularly relates to a grinding roller for a malt crusher, which comprises a mandrel, a roller and a protective plate, and the mandrel is mounted on the malt crusher; the roller and the mandrel are concentrically arranged, the roller is fixedly connected with the mandrel, the roller surrounds the outer side of the mandrel, and at least one through first groove is formed in the roller; the protection plate is connected with the mandrel in a sliding mode, and the protection plate can slide into the first groove to enable the roller to form a complete outer surface or slide to the outer surface protruding out of the roller. The grinding roller for the malt crusher disclosed by the utility model can assist a scraper in removing malt husks adhered to the surface of the grinding roller.

Description

Technical Field

[0001] This utility model discloses a grinding roller, and more particularly relates to a grinding roller for a malt crusher. Background Technology

[0002] Chinese utility model patent CN203750587U discloses a novel malt roller crusher that crushes materials through the extrusion of grinding rollers. During operation, the crushed malt husks adhere to the surface of the grinding rollers. Therefore, a common practice is to install a scraper on one side of the grinding rollers (see appendix). Figure 8 The scraper can float up and down, and as the grinding roller rotates, the scraper peels off the malt husks adhering to the surface. The scraper generally has two mounting positions; see appendix. Figure 8 There are two installation positions: First, the scraper is perpendicular to the tangent of the grinding roller. This position easily causes the scraper to chip. Second, the scraper is not perpendicular to the tangent of the grinding roller. While this position avoids chipping, it can cause problems when the malt bran is already evenly adhered to the surface of the grinding roller (i.e., the malt bran is already evenly attached to the surface of the grinding roller). Figure 8 (As shown in the adhesion state) The cutter cannot effectively remove the malt bran adhering to the surface of the grinding roller because it cannot adhere to the surface of the grinding roller.

[0003] Therefore, the structure of the grinding roller needs to be improved. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, a grinding roller for a malt crusher is provided, which can be used with a scraper to remove malt husks adhering to the surface of the grinding roller.

[0005] A grinding roller for a malt crusher, comprising:

[0006] Mandrel, the mandrel being mounted to a malt crusher;

[0007] A roller, which is concentrically arranged with and fixedly connected to the mandrel, surrounds the outside of the mandrel, and is provided with at least one through-hole first groove;

[0008] The guard plate is slidably connected to the spindle. The guard plate can slide into the first groove to make the roller form a complete outer surface, or slide to protrude from the outer surface of the roller.

[0009] Preferably, a guide plate is connected to one side of the guard plate, the mandrel is provided with a second groove, and the guide plate extends into the second groove; the guide plate is provided with a guide groove, the guide groove extends along the sliding direction of the guard plate, the mandrel is connected to a pin, a roller is connected to the pin, and the roller is placed in the guide groove.

[0010] Preferably, a first pin is connected to each side of the guide plate, a second pin is connected to the mandrel, and a spring is connected between the first pin and the second pin; under the action of the spring, the guide plate has a tendency to slide towards the axis of the mandrel.

[0011] Preferably, a screw is rotatably connected inside the mandrel, and the screw is provided with two sections of transmission threads with opposite directions of rotation; the mandrel is connected to a rotating sleeve, and the rotating sleeve is connected to both ends of the screw.

[0012] Preferably, a recess is provided on the side where the guide plate connects to the guard plate, and a protrusion is provided on the side where the guard plate connects to the guide plate, and the protrusion and the recess are interlocked and fixed together.

[0013] Preferably, guide sleeves are connected to the two transmission threads with opposite directions on the screw. The outer surface of the guide sleeve is provided with a guide protrusion, and the guide protrusion has a first guide slope. One side of the guide plate has a second guide slope that cooperates with the first guide slope, and the first guide slope and the second guide slope are in close contact with each other.

[0014] Preferably, a third groove is provided on the opposite end faces of the screw.

[0015] Preferably, the roller includes a flange portion and a cylindrical portion, wherein the flange portion is fixed to both ends of the cylindrical portion and is fixed to the mandrel.

[0016] The beneficial effects of this utility model are as follows:

[0017] When it is necessary to remove the malt husks from the surface of the grinding roller, the screw is first driven to rotate, which in turn causes the guide sleeve to drive the guide plate to slide along the radial direction of the roller, pushing off a portion of the malt husks adhering to the roller surface. Then the guide plate is returned to its original position. The scraper uses the guide plate as the entry point and can then adhere to the surface of the grinding roller. As the grinding roller continues to rotate, the malt husks adhering to its surface can be completely removed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the roller in this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of this utility model after the roller has been removed;

[0021] Figure 4 This is a schematic diagram of the connection between the guard plate and the guide plate in this utility model;

[0022] Figure 5 For the appendix Figure 3 The main view;

[0023] Figure 6 This is a schematic diagram showing the connection of the protective plate, guide plate, mandrel, screw, guide sleeve, etc. in this utility model;

[0024] Figure 7 This is a schematic diagram of the guide sleeve in this utility model;

[0025] Figure 8 This is a schematic diagram illustrating the principle of the distribution of grinding rollers and scrapers in the prior art.

[0026] In the diagram, 1. mandrel; 2. roller; 3. first groove; 4. guard plate; 5. guide plate; 6. second groove; 7. guide groove; 8. pin; 9. roller; 10. first pin; 11. second pin; 12. spring; 13. screw; 14. rotating sleeve; 15. recess; 16. protrusion; 17. guide sleeve; 18. guide protrusion; 19. third groove; 20. flange; 21. cylinder. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1 To be continued Figure 8 The embodiments describe the principles and features of this utility model. The examples are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0028] A grinding roller for a malt crusher includes a spindle 1, a drum 2, and a guard plate 4.

[0029] The mandrel 1 is mounted on the malt crusher. Rollers 2 are distributed within the hopper of the malt crusher and are fixedly connected to the mandrel 1 by fasteners (bolts). Rollers 2 rotate together with the mandrel 1. Rollers 2 and mandrel 1 are concentrically arranged, with rollers 2 surrounding the outer side of the mandrel 1. For ease of assembly, rollers 2 are divided into flanges 20 and cylinders 21. Flanges 20 are fixed to both ends of cylinders 21 by fasteners (bolts). Rollers 2 are provided with at least one through-groove first groove 3, extending axially from one end to the other. In this embodiment, three first grooves 3 are provided, arranged in an array along the circumference of rollers 2. A guard plate 4 corresponds one-to-one with each of the first grooves 3. Specifically, the guard plate 4 is slidably connected to the mandrel 1, and the guard plate 4 can slide radially along the mandrel 1. The guard plate 4 can slide towards the side closer to the spindle 1 into the first groove 3 so that the roller 2 forms a complete outer surface; the guard plate 4 can also slide away from the spindle 1 to push off a portion of the malt husks attached to the outer surface of the grinding roller.

[0030] A guide plate 5 is connected to the side of the guard plate 4 facing the spindle 1. Specifically, a recess 15 is provided on the side of the guide plate 5 connected to the guard plate 4, while a protrusion 16 is provided on the side of the guard plate 4 connected to the guide plate 5. The protrusion 16 and the recess 15 are interlocked and fixed to form a detachable connection between the guard plate 4 and the guide plate 5. A second groove 6 is provided on the spindle 1, and the second groove 6 corresponds one-to-one with the guide plate 5. One end of the guide plate 5 extends into the second groove 6. The guide plate 5 is provided with a guide groove 7, which extends along the sliding direction of the guard plate 4 (i.e., the radial direction of the grinding roller). Corresponding to the guide groove 7, a pin 8 is connected to the spindle 1. The pin 8 passes through the second groove 6 and is connected to a roller 9, which is placed in the guide groove 7. The guide groove 7 and the roller 9 cooperate to limit the sliding distance of the guide plate 5, preventing the guide plate 5 from detaching from the spindle 1 during sliding.

[0031] A screw 13 is rotatably connected to the center of the mandrel 1. The screw 13 has two sections of drive threads with opposite directions. A rotating sleeve 14 is fixedly connected to the mandrel 1, connecting to both ends of the screw 13 and supporting its rotation. Guide sleeves 17 are respectively fitted onto the two sections of the drive threads of the screw 13. The outer surface of each guide sleeve 17 has a guide protrusion 18 with a first guide slope extending into a second groove 6. The lower side of the guide plate 5 has a second guide slope that engages with the first guide slope, and the first and second guide slopes are in close contact. When the two guide sleeves 17 slide relative to each other, under the action of the first and second guide slopes, the guide plate 5 drives the guard plate 4 to slide away from the mandrel 1. First pins 10 are connected to both sides of the guide plate 5, and second pins 11 are connected to the spindle 1. A spring 12 is connected between the first pins 10 and the second pins 11. Under the action of the spring 12, the guide plate 5 has a tendency to slide towards the axis of the spindle 1. When the two guide plates 5 slide in opposite directions, under the action of the spring 12, the guide plate 5 drives the guard plate 4 to slide towards the side closer to the spindle 1.

[0032] To facilitate the rotation of the screw 13, a third groove 19 is provided on the opposite end faces of the screw 13. The third groove 19 can be engaged with an Allen screwdriver, allowing the screw 13 to rotate by tightening the Allen screwdriver. Positioning the third groove 19 at both ends of the screw 13 allows for external rotation of the screw 13 from the outside of the malt crusher. However, it is important to note that a corresponding opening needs to be provided at the bearing end cap of the spindle 1.

[0033] The working principle of this device is as follows: In the working state, the guard plate 4 is in the first groove 3, and the roller 2 is a complete outer surface. When it is necessary to use a scraper to remove the malt husks attached to the outer surface of the roller 2, the drive screw 13 rotates, and the two guide sleeves 17 slide relative to each other to lift the guide plate 5. The guide plate 5 drives the guard plate 4 to remove the malt husks at the corresponding position. Then the guard plate 4 returns to its original position, and the scraper can remove the malt husks attached to the surface of the grinding roller by using this position as the cutting point.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grinding roller for a malt crusher, characterized in that It comprises: a mandrel (1) which is installed to a malt crusher; a roller (2) which is concentrically arranged with the mandrel (1) and fixedly connected with the mandrel (1), surrounds the outside of the mandrel (1), and is provided with at least one first groove (3) which penetrates through; a guard plate (4) which is slidably connected with the mandrel (1) and can be slid into the first groove (3) to make the roller (2) form a complete outer surface or be slid out of the first groove (3) to protrude from the outer surface of the roller (2).

2. The grinding roller for a malt crusher according to claim 1, characterized in that One side of the guard plate (4) is connected with a guide plate (5), the mandrel (1) is provided with a second groove (6), and the guide plate (5) extends into the second groove (6); the guide plate (5) is provided with a guide groove (7) which extends in the sliding direction of the guard plate (4), the mandrel (1) is connected with a pin shaft (8), the pin shaft (8) is connected with a roller (9), and the roller (9) is arranged in the guide groove (7).

3. The attrition roller for a malt crusher according to claim 2, characterized in that, Both sides of the guide plate (5) are respectively connected with a first pin (10), the mandrel (1) is connected with a second pin (11), and a spring (12) is connected between the first pin (10) and the second pin (11); under the action of the spring (12), the guide plate (5) has a movement tendency of sliding towards the axis of the mandrel (1).

4. The attrition mill roller for malt crushing according to claim 2, characterized in that, A screw rod (13) is rotatably connected in the mandrel (1), the screw rod (13) is provided with two sections of transmission threads with opposite rotation directions, and the mandrel (1) is connected with a rotating sleeve (14) which is connected to both ends of the screw rod (13).

5. The attrition mill roller for malt crushing according to claim 4, characterized in that, One side of the guide plate (5) which is connected with the guard plate (4) is provided with a recess (15), one side of the guard plate (4) which is connected with the guide plate (5) is provided with a protrusion (16), and the protrusion (16) and the recess (15) are inserted and fixed with each other.

6. The attrition mill roller for malt crushing according to claim 4, characterized in that, The two sections of transmission threads with opposite rotation directions of the screw rod (13) are respectively connected with guide sleeves (17), the outer surface of the guide sleeve (17) is provided with a guide protrusion (18), the guide protrusion (18) has a first guide inclined surface, one side of the guide plate (5) has a second guide inclined surface which matches the first guide inclined surface, and the first guide inclined surface and the second guide inclined surface are matched with each other.

7. The attrition roll for a malt crusher according to claim 4, characterized in that, Third grooves (19) are arranged on the opposite end surfaces of the screw rod (13).

8. The attrition mill roller for malt crushing according to claim 1, characterized in that, The roller (2) comprises a flange portion (20) and a cylinder portion (21), the flange portion (20) is respectively fixed to both ends of the cylinder portion (21) and is fixed with the mandrel (1).

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