Diamond sand roller

Abstract

The diamond sand roller comprises an iron core, a grinding layer and grinding strips, the cylindrical grinding layer is arranged on the outer side of the iron core, an annular cavity is formed between the iron core and the grinding layer, a plurality of connecting rods are evenly arranged on the inner side of the annular cavity in the radial direction, and the two ends of each connecting rod are fixedly connected with the iron core and the grinding layer respectively. A plurality of connecting grooves are evenly formed in the outer surface of the grinding layer in the radial direction, each connecting groove is parallel to the axis of the grinding layer, a grinding strip is detachably arranged on the inner side of each connecting groove, a shaft hole is formed in the iron core, a plurality of sets of ventilation holes are evenly formed in the grinding layer, and the ventilation holes penetrate through the inner surface and the outer surface of the grinding layer. According to the sand roller, the grinding surface is increased, and the wear resistance and the grinding force of the sand roller are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand rollers, and specifically relates to a diamond sand roller. Background Art

[0002] In China, the mechanical method is generally used to polish brown rice. It uses a special equipment (rice milling machine) to drive the rice milling sand roller to rotate. By using the pressure between the rice grains and the functions of the sand roller and the fan, the rice grains are rubbed between the sand roller and the sieve plate to achieve the effect of removing the rice husk; the milling force mainly comes from the high-speed rotation between the inner roller and the outer cylinder and the sand blades of the surface emery grains. The brown rice, as an interlayer, is continuously milled during the chaotic movement, causing its cortex to rupture and fall off. When polishing brown rice by this method, the pressure required for the rice grains to remove the skin is relatively small, and the broken rice produced is less.

[0003] During the use of the existing rice milling sand roller, the outer surface of the milling layer is worn. When the outer surface of the milling layer is worn to a certain extent, the milling force of the sand roller will decrease, resulting in insufficient milling of brown rice. When the sand roller mills brown rice, heat will always be generated due to the high-speed friction with the brown rice, and it is necessary to cool the sand roller. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a diamond sand roller aiming at the above deficiencies.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A diamond sand roller includes an iron core, a milling layer, and milling bars. A cylindrical milling layer is arranged on the outer side of the iron core. An annular cavity is formed between the iron core and the milling layer. A plurality of connecting rods are evenly arranged radially on the inner side of the annular cavity. The two ends of each connecting rod are fixedly connected to the iron core and the milling layer respectively. A plurality of connecting grooves are evenly opened on the outer surface of the milling layer along the radial direction. Each connecting groove is parallel to the axis of the milling layer. A milling bar is detachably arranged inside each connecting groove. A shaft hole is opened on the iron core. A plurality of groups of ventilation holes are evenly opened on the milling layer. The ventilation holes penetrate the inner and outer surfaces of the milling layer. A diamond coating is arranged on the outer surface of the milling bar.

[0007] Furthermore, each group of ventilation holes includes two ventilation holes arranged vertically.

[0008] Furthermore, two key grooves are axially opened on the inner side of the iron core. The included angle between the two key grooves is [angle value] degrees. The key grooves are used for fitting and installation with the key grooves on the external rotating shaft.

[0009] Furthermore, two threaded holes penetrating through the milling layer are opened on each milling bar. The milling bar is fixedly connected to the milling layer through fastening bolts.

[0010] Further, the number of the connecting grooves is six.

[0011] Further, the milling bar is made of steel.

[0012] After the utility model adopts the above technical solutions, compared with the prior art, it has the following advantages:

[0013] By arranging the milling bar and the diamond coating, the milling surface is increased, and the wear resistance and milling force of the sand roller are improved. By arranging the ventilation holes, the flowing air blown by the blower on the rice mill first flows through the inside of the sand roller and then flows out from the ventilation holes, which can reduce the temperature on the surface of the sand roller, avoid the too high temperature between the sand roller and the paddy rice, and affect the quality of the milled white rice.

[0014] The following will describe the present utility model in detail with reference to the drawings and embodiments. Description of the Drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a top view of the present utility model;

[0017] Figure 3 is a cross-sectional view of the internal structure of the present utility model.

[0018] In the drawings, the list of components represented by each reference numeral is as follows:

[0019] 1, iron core; 101, shaft hole; 102, keyway; 2, milling layer; 201, connecting groove; 202, ventilation hole; 3, milling bar; 301, threaded hole; 4, connecting rod. Specific Embodiments

[0020] The following will describe the principle and features of the present utility model with reference to the drawings. The examples cited are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0022] Such as Figures 1-3As shown in the figure, a diamond abrasive roll includes an iron core 1, a milling layer 2 and milling bars 3. A cylindrical milling layer 2 is arranged on the outer side of the iron core 1. An annular cavity is formed between the iron core 1 and the milling layer 2. A plurality of connecting rods 4 are evenly arranged radially on the inner side of the annular cavity. The two ends of each connecting rod 4 are fixedly connected to the iron core 1 and the milling layer 2 respectively. A plurality of connecting grooves 201 are evenly opened radially on the outer surface of the milling layer 2. Each connecting groove 201 is parallel to the axis of the milling layer 2. A milling bar 3 is detachably arranged inside each connecting groove 201. A shaft hole 101 is opened on the iron core 1. A plurality of groups of ventilation holes 202 are evenly opened on the milling layer 2. The ventilation holes 202 penetrate through the inner and outer surfaces of the milling layer 2. A diamond coating is arranged on the outer surface of the milling bar 3.

[0023] As an implementation manner, each group of ventilation holes 202 includes two ventilation holes 202 arranged vertically.

[0024] As an implementation manner, two key grooves 102 are opened on the inner side of the iron core 1. The included angle between the two key grooves 102 is 90 degrees. The key grooves 102 are used for fitting and installing with the key grooves on the external rotating shaft.

[0025] As an implementation manner, two threaded holes 301 penetrating through the milling layer 2 are opened on each milling bar 3. The milling bar 3 is fixedly connected to the milling layer 2 through fastening bolts.

[0026] As an implementation manner, the number of the connecting grooves 201 is six.

[0027] As an implementation manner, the milling bar 3 is made of steel.

[0028] The working process of the present utility model: First, install the abrasive roll on the main shaft of the rice milling machine, and the abrasive roll can be installed out of position with other abrasive rolls on the main shaft of the rice milling machine through the two key grooves 102. After starting the rice milling machine, the paddy is milled between two adjacent milling bars 3. The paddy contacts the diamond coating on the milling bar 3. The diamond coating and the milling layer 2 mill the paddy into white rice. The flowing air blown by the blower on the rice milling machine is blown out from the ventilation holes 202 to cool the surfaces of the milling layer 2 and the milling bars 3.

[0029] The above is an example of the best implementation manner of the present utility model. The parts not described in detail are all common general knowledge of those of ordinary skill in the art. The protection scope of the present utility model is subject to the content of the claims. Any equivalent transformation based on the technical inspiration of the present utility model is also within the protection scope of the present utility model.

Claims

1. A diamond grinding roller, characterized in that: The invention comprises an iron core (1), a grinding layer (2) and a grinding bar (3), wherein a cylindrical grinding layer (2) is arranged on the outer side of the iron core (1), an annular cavity is formed between the iron core (1) and the grinding layer (2), a plurality of connecting rods (4) are evenly arranged radially on the inner side of the annular cavity, the two ends of the connecting rods (4) are respectively fixedly connected to the iron core (1) and the grinding layer (2), a plurality of connecting grooves (201) are evenly arranged radially on the outer surface of the grinding layer (2), each of the connecting grooves (201) is parallel to the axis of the grinding layer (2), a grinding bar (3) is detachably arranged on the inner side of each connecting groove (201), an axial hole (101) is arranged on the iron core (1), a plurality of ventilation holes (202) are evenly arranged on the grinding layer (2), the ventilation holes (202) penetrate the inner and outer surfaces of the grinding layer (2), and a diamond coating is arranged on the outer surface of the grinding bar (3).

2. A diamond grinding roller according to claim 1, characterized in that: Each group of ventilation holes (202) includes two ventilation holes (202) arranged one above the other.

3. A diamond grinding roller according to claim 1, characterized in that: Two key slots (102) are provided on the inner side of the iron core (1) along the axial direction, the angle between the two key slots (102) is 90 degrees, and the key slots (102) are used for matching and installing with the key slots on the external rotating shaft.

4. A diamond grinding roller according to claim 1, characterized in that: Each grinding bar (3) is provided with two threaded holes (301) penetrating the grinding layer (2); the grinding bar (3) is fixedly connected to the grinding layer (2) via fastening bolts.

5. A diamond grinding roller according to claim 1, characterized in that: The number of the connecting grooves (201) is six.

6. A diamond grinding roller according to claim 1, characterized in that: The grinding bar (3) is made of steel.

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