JPS5849441A - Drive apparatus of samll rice polisher - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drive device for a small rice mill that can be started with a small horsepower.

Generally, small rice mills use a low-horsepower three-wheel self-conducting electric motor, so if the rotational speed at startup does not increase rapidly, there is a risk that the torque will be insufficient and the motor coils will burn out. In particular, if there are rice grains left in the milling chamber, the friction resistance caused by the rice grains will make it difficult to start, and if the rotor is stopped, there is a serious risk of burnout due to overcurrent. If the main shaft is not directly connected and power is transmitted indirectly using belts, even if the tension of the belt is high enough for a small horsepower, the frictional force will cause an overload, making it difficult to rapidly increase the rotational speed at startup. , the risk of heat generation and burnout is high.

The present invention solves the above-mentioned problems by rounding and loosely fitting a spring coil across the outer peripheral surfaces of a white trochanter main shaft and a motor main shaft, which are mounted concentrically with an appropriate shaft end distance between them. At the same time, by locking and fixing both ends of the coil to the locking portions provided on each of the main shafts, the extra frictional force that is pulled laterally and generated on the main shaft of the conventional device for hanging the belt is eliminated. This eliminates the resistance of the electric motor and generates rotational force against the inertia of the rotor alone, so the starting load is minimal, and the rotational force is accelerated in the shortest time and the rapid momentum is used to drive the motor. As mentioned above, the rotational efficiency at restart is greatly improved, and the speed-up time of the rotor due to the stirring action of the spring coil is 9. Therefore, the conventional clutch mechanism is not installed, and the shock generated at the time of startup is reduced. It is an object of the present invention to develop and provide a device that can smoothly and quickly mass-produce high-quality polished rice at all times without causing wear and tear due to the above-mentioned coil failure or the above-mentioned failure of the coil.

The present invention will be explained with reference to embodiment figures. Figure 1 is a side sectional view of a small-sized rice milling machine, in which a milling and bran removal cylinder (2) with a porous wall is horizontally suspended inside the machine frame (1), and a polishing trochanter is placed inside the rice bran removal cylinder (2). (8) and the screen conveyor (4).

A milling chamber (6) is formed by inserting the fixed main shaft (5), and the milling chamber (6) K is equipped with a rice feeding opening and a rice discharging opening (9) equipped with a pressing lid (8). , the rice feeding opening (7) is connected to the upper rice feeding hopper (lO), and the bran removing cylinder (2> is provided with a bran removing cylinder (11) around it to remove the bran from the lower rice bran 11). (12) K communication, (18) is a flow rate adjustment rod that adjusts the grain flow rate of the rice feeding port (7), (14)
is the main shaft of the electric motor (15), and (16) is the lid of the rice feeding hopper.

Next, the drive device of the present invention has an appropriate shaft end latch (17).
A spring coil ( 1
8) in a loose-fitting manner, and the both ends of the coil (18) are engaged with the locking portions (19) or (2o) provided on each of the main shafts (5) or (14), respectively. put it on and fix it,
The spring coils (18) are rotated by the rotation of the motor main shaft (14) to each main shaft (5) t & $1 (14)K
They are each twisted, and the two sets of refined trochanter main shafts (5) are formed to interlock and rotate simultaneously by the winding frictional force.

As shown in FIG. 2, in the range of waiting tf precision (2), the polished trochanter main shaft has a fitting cylinder part (
21), and a Tsumugi power distribution motor main shaft (14) is provided in the cylindrical portion (21).
) are slidably inserted and connected in an N6 shape, so the centering bearings, etc. of (14) are omitted for each of the main shafts (5), which simplifies the structure and makes assembly easier.・It has the effect of simplifying disassembly.

With the above-mentioned configuration, when the rice feeding hopper (lO) is supplied with K raw brown rice and the apparatus is started, the rotation of the electric motor main shaft (14) causes the spring coil (1) fitted in a loosely fitted manner ( 18) move in the same direction to connect them concentrically and twist each of the above-mentioned main shafts (5) and (14), respectively.
The milling trochanter main shaft (5) rotates in conjunction with the winding frictional force, so that when the brown rice flows into the milling chamber (6) and is subjected to the milling action, the milled rice is transferred to the rice discharging port (9). ), and the rice bran powder is taken out of the machine from the perforated wall of the polishing and rice bran removing cylinder (2) into the rice bran removal chamber (river) and collected in the rice bran box (12). When it stops, the main shaft (5) (
14) Due to its turning elastic force, the K-wound spring coil (18) loosens the above-mentioned loosely stitched state and returns to its original loosely fitted state, and its return repulsive force causes the white trochanter main-(5) to move the main axis (5) in the opposite direction.
The milled grain j7-CB) attached to the milling chamber (6) is reversed, and the density of rice grains in the milling chamber (6) is moderated.

Therefore, the power to restart the pumping action is harmonized, and the rotational force is accelerated in the shortest possible time and driven by the rapidly increasing momentum, so the rotational efficiency at the time of restart can be greatly improved. In addition, since the rotor speed is increased by the stirring action of the spring coil, it is possible to completely prevent wear and tear caused by the impact that occurs when the device starts up, and the aforementioned coil failure, and to ensure constant operation. This has effects such as stable, high-quality polished rice that can be produced smoothly and quickly using the kit.

[Brief explanation of the drawing]

The drawings are illustrations of embodiments of the present invention. FIG. 1 is a side sectional view of the present device, and FIG. 2 is a partially enlarged plan view of the main parts thereof. l... Machine frame 2... Refined bran removal cylinder 8...
・White trochanter 4...Scree conveyor b
... Main shaft 6 ... Milling room 7°°° Rice feed port 8 ... Pressing lid - 9 ... Rice discharge port
10... Rice feeding hopper 11... Bran removal room
12... Rice bran box l3... Flow rate adjustment rod
14...Main shaft 15...Electric motor 16...
- Lid body 17... Shaft end distance 18... Spring coil 19... Locking part 20...
Locking part 21 -- Fitting cylinder part Patent applicant's Fig. 2

Claims (2)

[Claims] (1) A spring coil is loosely fitted around the outer periphery 1iKI of the polished trochanter main shaft and the motor main shaft, which are concentrically mounted with an appropriate distance between the shaft ends, and both ends of the coil are The spring coils are fixed by being engaged with locking portions provided on each of the main shafts, and the spring coils are respectively twisted to each of the main shafts according to the rotation of the motor main shaft, and the winding friction force is used to tighten the milled trochanter main shaft. The driving device of the nine small lid rice milling machine is interlocked to rotate. (2) A patent claim in which the polished trochanter main shaft is provided with a fitting cylindrical portion at the end of the shaft, and is concentrically connected to the cylindrical portion in a sliding manner as the main shaft of the front power distribution motor. A drive device for a small rice milling machine according to scope (1).