JPS6211626B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a polishing trochanter replacement device for a vertical rice mill, which facilitates the replacement of a polishing trochanter that is worn out.

A grinding wheel called a Kongo roll is generally used for the polishing trochanter of a vertical rice mill. This white trochanter wears out after long-term use and must be replaced with a new one.

Traditionally, the rice polishing machine had to be disassembled to replace the polishing trochanter, but vertical rice mills have a large rice polishing tank at the top, and the height of the large rice mill is about 8 meters above the ground. Because of this, removing the rice polishing tank would be a huge undertaking.
Work at heights requires the use of cranes, chain blocks, etc., which is extremely dangerous and time-consuming, and operations must be suspended during this time.
This would have resulted in a huge economic loss.

The present invention solves these conventional difficulties, and
The present invention is intended to enable quick and easy replacement of the refined trochanter, and will be described below with reference to the attached drawings.

The upper rice milling tank 1 is supported by the upper extension 3 of the frame 2 of the rice milling machine, and the rice milling tank 1
The rice milling main part 5 containing the milling trochanter 4 located directly under the machine is removed from the upper rice milling tank 1 and the frame 2, as well as the rotation transmission device 6, and the rice milling main part 5 is pivoted and moved out of the machine. , the whitening trochanter 4 can be replaced by disassembling it.

An example of a device for rotating and moving the rice milling main part 5 out of the machine is that one side of the rice milling main part 5 is rotatably supported on a pivot shaft 7 fixed upright to the frame 2, and the rice milling main part 5 is rotated. It pivots around the shaft 7 and moves laterally.

To explain in more detail how to rotate and move the rice milling main part 5 out of the machine as shown in FIG. 2, the connection between the rice milling tank 1 and the rice milling main part 5 is
A cylindrical shutter 8 whose inner diameter touches the outer periphery of the small-diameter cylindrical portion at the lower end and can slide up and down is configured to close the gap between the lower end of the rice milling tank 1 and the upper end of the main rice milling section 5. , remove the mounting bolts 9 from the rice milling main part 5 of this cylindrical shutter 8, and remove the rice milling tank 1 as shown by the imaginary line in FIG.
Slide up the outer periphery of the small diameter cylindrical part at the lower end of the
form. Next, the connection with the frame 2 is removed by removing the connecting bolt 10, and further, the rotation transmission device (belt is shown in the figure) 6 is removed. Then, by turning the adjustment screw 11 screwed onto the upper end of the turning shaft 7, the rice milling main part 5 is slightly lifted, and the regular center point O of the rice milling main part 5 is adjusted as shown in FIG. axis 7
From the center point P of
By turning and moving the milling machine to point Q, the rice milling main part 5 can be disassembled and the milling trochanter 4 can be replaced.

FIG. 4 shows an example of the structure of the main rice milling section 5 that has been pivoted out of the machine. The upper shell 1 of the shell 12 surrounding the milling trochanter 4 that fits into the disassembly of this rice milling main part 5
3, remove the surrounding mounting bolts 14 and remove the white trochanter shaft 1 whose lower part is supported by the bearing tube 15.
When the locking nut 17 at the upper end of the trochanter 6 is removed and the upper trochanter holder 18 is removed, the polished trochanter 4 can be removed upwards, so it can be replaced with a new one and reassembled.

The white trochanter 4 is shown as one piece in the figure, but due to manufacturing reasons, it may be divided into two or three stages and stacked, but even in this case, Just remove them and assemble them one by one from the bottom.

Although the rice milling tank 1 is supported by extending the frame 2 of the rice milling machine upward, the present invention is not limited to this.
It is also possible to support it by a building separate from the floor, or by attaching an appropriate support device to pillars, beams, girders, trusses, etc. of the building.

As explained above, the present invention makes it possible to rotate the main part of rice milling, which includes the milling trochanter, out of the machine and replace the milling trochanter by simply removing a few bolts. There is no need to remove the upper rice milling tank with a hook, and therefore the replacement work of the milling trochanter, which conventionally required about 2 man-hours, can be significantly shortened to about 0.2 man-hours, and the replacement work is extremely easy and not dangerous. This has great effects such as being able to greatly reduce the cost required to replace the polished trochanter, including the economic loss due to business suspension during that time.

[Brief explanation of the drawing]

The attached drawings show one embodiment of the present invention. Figure 1 is a front view of the main parts of a rice milling machine equipped with the apparatus of the present invention in its normal state, and Figure 2 shows a state in which the main parts of the rice milling machine have been moved. 3 is a partially cutaway front view of the main part, FIG. 3 is a plan view taken along the line AB in FIG. 2, and FIG. 4 is a longitudinal cross-sectional view of the main part of rice milling. DESCRIPTION OF SYMBOLS 1...Rice polishing tank, 2...Frame, 3...Upper extension part, 4...Milling trochanter, 5...Rice milling main part, 6...Rotation transmission device, 7...Swivel shaft, 8...Cylindrical shutter, 9...Mounting bolt, 10 ... Connection bolt, 11 ... Adjustment screw, 12 ... Shell body, 13 ... Upper shell body, 14 ... Mounting bolt, 15 ... Bearing cylinder, 16 ... White trochanter shaft, 1
7... Lock nut, 18... Upper trochanter presser.

Claims (1)

[Scope of Claims] 1. An upper rice milling tank is supported by the frame of the rice milling machine or another structure, and the rice milling main part containing a milling trochanter is placed directly below the rice milling tank.
A milling rotation of a vertical rice milling machine, characterized in that the connection with the upper rice milling tank and the lower frame and the rotation transmission device are removed, the main rice milling parts are moved outside the machine, and the milling trochanter is replaced. Child exchange device. 2. One side of the main rice milling part is rotatably supported on a pivot shaft fixed upright on the frame, so that the main rice milling part can be pivoted around the pivot shaft and moved laterally.
A milling trochanter exchange device for a vertical rice milling machine according to claim 1.