CN110935504A

CN110935504A - Rice mill for agricultural machine

Info

Publication number: CN110935504A
Application number: CN201911305698.7A
Authority: CN
Inventors: 黄丽兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-03-31

Abstract

The invention discloses a rice mill for agricultural machinery, which structurally comprises a base, a baffle plate, a motor, a whitening chamber, a feed hopper and a discharge port, wherein the baffle plate is welded on the base and is used as an outer protective cover of the motor, a transmission belt of the motor is in transmission fit with a transmission end of the whitening chamber, the bottom of the whitening chamber is provided with the discharge port, a bran outlet is arranged at the adjacent side of the same position of the discharge port, the top end of the whitening chamber is provided with the feed hopper, a rice sieve, a whitening roller and a transmission shaft are arranged in the whitening chamber, the rice sieve is arranged at the interface of the whitening chamber and the feed hopper, the rice sieve is matched at the vertical upper end of the whitening roller, the rice sieve and the whitening roller are both arranged in the whitening chamber, the rice sieve is suspended by a return spring and a swing pull rod, the up-down movement can be realized, the pressure of the whitening chamber can be controlled by adjusting the tensioning degree of, the automatic pressure regulating function is realized, so that the condition that the yield is reduced due to too low pressure in the whitening chamber is avoided.

Description

Rice mill for agricultural machine

Technical Field

The invention relates to the field of agricultural machinery, in particular to a rice mill for agricultural machinery.

Background

The rice mill is one of agricultural processing machines, and is used for removing bran layer from brown rice and grinding the brown rice into white rice, its main working component is a grinding chamber formed from rotary grinding roller and its peripheral steel plate punched rice sieve, the brown rice is discharged from rice outlet after removing bran layer in the grinding chamber, the rice bran is discharged from rice outlet, and passed through the sieve pores of rice sieve, the feeding quantity of feeding mechanism, gap and pressure of grinding chamber can be regulated, and the rice sieves with different pore shapes and sizes can be substituted, the rice outlet is provided with a pressure door or a gate to adapt to different requirements, the size of the rice outlet is controlled and can be adjusted to obtain different milling precision and flow, the mechanical and physical actions of rice milling are simply intercrossed, the long-term production practice in China proves that the rice breaking rate can be reduced and the rice color can be improved by adopting mixed whitening mainly based on grinding and secondarily based on rubbing, and meanwhile, the yield is favorably improved;

the rice mill is according to the device form of glutinous roller main shaft of rice mill, divide into vertical rice mill and horizontal rice mill two major types, vertical rice mill is mostly the sand white rice mill, belong to the type of grinding, the roller adopts the emery wheel cluster to piece together, vertical roller is the mode of the perpendicular whereabouts of nature, the roller receives grain friction impact effect for a long time, make roller axis straightness fine error that appears that hangs down, though still the roller of complete balance, its focus also deviates from the plumb line and produces unbalanced force, lead to the room internal pressure undersize of roller, cause output to reduce.

Disclosure of Invention

In order to solve the problems, the invention provides a rice mill for agricultural machinery.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a rice mill for agricultural machine, its structure includes base, baffle, motor, whitening chamber, feeder hopper, discharge gate, the welding has the baffle on the base, and this baffle is as the outer protection casing of motor, the drive belt of motor adopts the transmission cooperation with the transmission end of whitening chamber, whitening chamber bottom is equipped with the discharge gate, and the adjacent side department that wherein is located the discharge gate same position is equipped with out the chaff mouth, the feeder hopper is installed on the top of whitening chamber, be provided with rice sieve and whitening roller, transmission shaft in the whitening chamber, the kneck of whitening chamber and feeder hopper is located to the rice sieve, the cooperation of rice sieve is in the perpendicular upper end of whitening roller, the transmission shaft is adorned in the bottom roller core department of whitening roller to adopt the transmission with the motor and be connected, the rice sieve suspends in midair through swing pull rod and reset spring.

As a further improvement of the invention, the whitening roller is formed by splicing more than two tile-shaped components with the same structure and is divided into an upper part and a lower part, wherein the upper part is provided with a cutting blade, and the lower part is provided with a friction plate.

As a further improvement of the invention, a conical pressing cap is fixed at the upper end of the cutting blade, and the friction plate and the cutting blade are fixed by a connecting rod.

As a further improvement of the invention, the conical pressing cap comprises a pressing plate and a clamping piece, and the conical pressing cap is mechanically connected to the cutting sheet through the pressing plate and the clamping piece.

As a further improvement of the invention, four clamping pieces are arranged and uniformly surround the pressure plate in a planetary shape, so that the mounting stability of the conical pressure cap is improved, and the position deviation in the whitening process is prevented.

As a further improvement of the invention, the outer surface of the friction plate is an inner ring in a abacus shape, and the inner ring is matched with the outer ring.

As a further improvement of the invention, the outer ring is arranged at the lower end of the rice sieve and is controlled by a return spring, and the swinging pull rod is positioned at the upper top end of the return spring.

As a further improvement of the invention, the rice sieve is hexagonal and is positioned in the whitening chamber in a way that the circumferential pressure generates six moderate changes within one week.

As a further improvement of the invention, the cutting sheet mainly consists of a sand roller, and the friction plate is arranged on the surface of the iron roller, so that the effective operation of the cutting sheet and the friction plate is realized.

Compared with the prior art, the invention has the beneficial effects that:

1. the rice sieve and the whitening roller are both arranged in the whitening chamber, the rice sieve is suspended by the return spring and the swing pull rod, can move up and down, can control the pressure of the whitening chamber by adjusting the tensioning degree of the return spring, keeps the pressure in the whitening chamber constant, and plays a role in automatically adjusting the pressure to avoid the situation that the yield is reduced because the pressure in the whitening chamber is too low.

2. The invention is provided with the conical pressing cap on the whitening roller, the conical pressing cap is stably fixed on the whitening roller by the pressure plate and the clamping piece, the structural design of a spiral head is cancelled by the conical pressing cap, the raw materials are pushed only by the variable pitch spiral groove on the cutting sheet and the friction sheet and the gravity, so that the whole whitening roller can be filled with the materials during vertical feeding, and the conical pressing cap can provide the vertical pressure of the whitening roller to prevent the gravity center of the whitening roller from deviating and the verticality from having errors.

3. The rice sieve is hexagonal, has no local high pressure area, and the peripheral pressure of the whitening chamber generates six times of mild changes in one week, promotes the reaction of rice grains and the translocation of inner and outer layers of rice grain fluid in revolution, and is favorable for uniformly whitening and reducing broken rice.

Drawings

FIG. 1 is a schematic structural view of a rice mill for agricultural machinery according to the present invention.

FIG. 2 is a schematic view of a whitening chamber of the rice mill for agricultural machinery of the present invention.

FIG. 3 is a schematic view showing the structure of a whitening roller of the rice mill for agricultural machinery of the present invention.

FIG. 4 is a schematic view showing a partial three-dimensional structure of a whitening roller of the rice mill for agricultural machinery of the present invention.

FIG. 5 is a detailed view of the structure of a rice sieve of the rice mill for agricultural machinery of the present invention.

Fig. 6 is a schematic structural view of a friction plate of the rice mill for agricultural machinery of the present invention.

FIG. 7 is a schematic view of a top view of a rice sieve opening of the rice mill for agricultural machinery of the present invention.

FIG. 8 is a schematic view of a circumferential distribution structure of rice sieves of the rice mill for agricultural machinery of the present invention.

In the figure: base-1, baffle-2, motor-3, whitening chamber-4, feed hopper-5, discharge port-6, rice sieve-41, whitening roller-42, transmission shaft-43, cutting piece-421, friction piece-422, swing pull-rod-411, reset spring-412, conical pressure cap-423, connecting rod-424, pressure plate-231, clamping piece-232, inner ring-a 1 and outer ring-a 2.

Detailed Description

In order to make the technical means, the creation features, the achievement objects and the effects of the present invention easy to understand, fig. 1 to 8 schematically show the structure of the rice mill according to the embodiment of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1-3, the present invention provides a rice mill for agricultural machinery, which comprises a base 1, a baffle 2, a motor 3, a whitening chamber 4, a feed hopper 5, and a discharge port 6, wherein the baffle 2 is welded on the base 1, the baffle 2 is used as an outer protective cover of the motor 3, a transmission belt of the motor 3 is in transmission fit with a transmission end of the whitening chamber 4, the discharge port 6 is arranged at the bottom of the whitening chamber 4, a bran outlet is arranged at the adjacent side of the same position of the discharge port 6, the feed hopper 5 is arranged at the top end of the whitening chamber 4, a rice sieve 41, a whitening roller 42 and a transmission shaft 43 are arranged in the whitening chamber 4, the rice sieve 41 is arranged at the interface of the whitening chamber 4 and the feed hopper 5, the rice sieve 41 is matched at the vertical upper end of the whitening roller 42, the transmission shaft 43 is arranged at the bottom roller core of the whitening roller 42 and is in transmission connection with the motor 3, since the rice grain density (same cross section) around the whitening roller 42 is the same because the whitening chamber 4 is vertical, the rice grains are uniformly pressed during whitening, and broken rice is not easily generated.

The conical pressing cap 423 comprises a pressing plate 231 and a clamping member 232, and the conical pressing cap 423 is mechanically connected to the cutting blade 421 through the pressing plate 231 and the clamping member 232.

Joint 232 is equipped with four, is that the planet form evenly encircles on pressure disk 231, improves the installation stability of toper pressure cap 423, prevents that offset from appearing in the whitening process.

Example 2

As shown in fig. 4, the whitening roller 42 is formed by splicing more than two tile-shaped components with the same structure, and is divided into an upper part and a lower part, wherein the upper part is provided with a cutting blade 421, the lower part is provided with a friction plate 422, the upper end of the cutting blade 421 is fixed with a conical pressing cap 423, the friction plate 422 and the cutting blade 421 are fixed by a connecting rod 424, the cutting blade 421 is mainly formed by a sand roller, the friction plate 422 is arranged on the surface of an iron roller, so as to realize the effective operation of the cutting blade 421 and the friction plate 422, by improving the structure of the whitening roller 42, the upper part and the lower part are formed by splicing a plurality of tile-shaped components, the upper part is assembled into a grinding type, the lower part is assembled into a friction type, thus the type of the whitening roller 42 can be determined according to the original, the pressure control mechanism formed by the rice sieve 41, the return spring 412 and the swing pull rod 411 can be conveniently determined according, even the unripe rice with loose texture can be effectively whitened.

Example 3

As shown in fig. 5 to 8, the rice sieve 41 is suspended by the swing rod 411 and the return spring 412, the outer surface of the friction plate 422 is an inner ring a1 in a shape of a abacus disc, the inner ring a1 is matched with an outer ring a2, the outer ring a2 is arranged at the lower end of the rice sieve 41 and controlled by the return spring 412, the swing rod 411 is arranged at the upper top end of the return spring 412, the rice sieve 41 is hexagonal and is arranged in the whitening chamber 4, the circumferential pressure is changed within a circle for six times, the inner ring a1 in a shape of a disc at the end of the whitening roller 42 (namely the position of the friction plate 422) is matched with the outer ring a2 controlled by the return spring 412, when the whitening chamber pressure is not large, the tension of the return spring 412 moves the rice sieve 41 upwards, so that there is almost no gap between the inner ring and the outer ring, the rice grain discharging port is closed until the indoor pressure is increased to exceed the tension of the return, a gap is formed between the inner ring and the outer ring, and the gap is a circular ring with equal gaps on the periphery, so that rice grains are uniformly discharged.

The working principle of the rice mill in the above technical scheme is explained as follows:

under the power action of a motor 3, a whitening roller 42 with a transmission shaft 43 is matched with and rotates, when the rice grains enter a whitening chamber 4 during vertical blanking, the pressure in the chamber is gradually increased, a rice sieve 41 moves downwards under the action of pressure, a return spring 412 is lengthened, when the pressures of the return spring 412 and the whitening chamber 4 are balanced mutually, the position of the rice sieve 41 is kept still, when the whitening chamber 4 is filled with the rice grains, the pressure in the chamber is increased to exceed the tension of the return spring 412, the rice sieve 41 moves downwards, namely an outer ring a2 moves downwards, a gap is formed between the outer ring a1 and the inner ring a1, and the separated rice grains and brown bran are uniformly discharged from a discharge port 6 and a bran discharge port respectively under the mixing action of a cutting piece 421 and a friction piece 422 of the whitening roller 42;

when the pressure in the whitening chamber 4 is reduced, the tension of the return spring 412 can not move down the rice sieve 41 due to the tension of the return spring 412, and at the moment, the rice sieve 41 moves up, so that the inner ring a1 and the outer ring a2 have almost no clearance, the rice discharge port is in a closed state, the pressure in the whitening chamber 4 rises, the pressure in the whitening chamber 4 can be kept constant, and the automatic pressure regulation effect is realized.

In the description of the present invention, it is to be understood that the terms "central," "lateral," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "side," and the like, as used herein, are used in an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and is not to be construed as limiting the invention.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Claims

1. The utility model provides a rice mill for agricultural machine which characterized in that: the structure of the rice husking machine comprises a base (1), a baffle (2), a motor (3), a whitening chamber (4), a feed hopper (5) and a discharge port (6), wherein the baffle (2) is welded on the base (1) and serves as an outer protective cover of the motor (3), a transmission belt of the motor (3) is in transmission fit with a transmission end of the whitening chamber (4), the bottom of the whitening chamber (4) is provided with the discharge port (6), a bran outlet is formed in the adjacent side of the same position of the discharge port (6), the feed hopper (5) is installed at the top end of the whitening chamber (4), a rice sieve (41) and a whitening roller (42) and a transmission shaft (43) are arranged in the whitening chamber (4), the rice sieve (41) is arranged at the joint of the whitening chamber (4) and the feed hopper (5), the rice sieve (41) is matched at the vertical upper end of the whitening roller (42), and the transmission shaft (43) is arranged at the bottom core of the whitening roller (42), and is in transmission connection with the motor (3), and the rice sieve (41) is suspended with a return spring (412) through a swing pull rod (411).

2. The rice mill for agricultural machinery according to claim 1, wherein: the whitening roller (42) is formed by splicing more than two tile-shaped parts with the same structure and is divided into an upper part and a lower part, wherein the upper part is provided with a cutting blade (421), and the lower part is provided with a friction plate (422).

3. The rice mill for agricultural machinery according to claim 2, characterized in that: the upper end of the cutting blade (421) is fixed with a conical pressing cap (423), and the friction plate (422) and the cutting blade (421) are fixed by a connecting rod (424).

4. A rice mill for agricultural machinery according to claim 3, characterized in that: the conical pressing cap (423) comprises a pressing plate (231) and a clamping piece (232), and the conical pressing cap (423) is mechanically connected to the cutting blade (421) through the pressing plate (231) and the clamping piece (232).

5. A rice mill for agricultural machinery according to claim 4, characterized in that: the number of the clamping pieces (232) is four, and the clamping pieces are uniformly arranged on the pressure plate (231) in a planetary shape.

6. A rice mill for agricultural machinery as claimed in claim 1, 2 or 3, wherein: the outer surface of the friction plate (422) is an inner ring (a1) in a abacus shape, and the inner ring (a1) is matched with the outer ring (a 2).

7. The rice mill for agricultural machinery according to claim 6, wherein: the outer ring (a2) is arranged at the lower end of the rice sieve (41) and is controlled by a return spring (412), and the swing pull rod (411) is arranged at the upper top end of the return spring (412).

8. A rice mill for agricultural machinery as claimed in claim 1 or 7, wherein: the rice sieve (41) is hexagonal and is positioned in the whitening chamber (4) and generates six gentle changes in circumferential pressure within one circle.