JPS638430Y2 - - Google Patents

Description

[Detailed description of the invention] Generally, in a hulling machine, a head plate is provided close to the side end surface of a rubber roll to prevent the paddy supplied onto the rubber roll from leaking downward from the side of the rubber roll. In such devices, conventionally, as a rubber roll rotation speed measuring device for a rice huller, as shown in FIG.
The operating shaft of the tachometer 20 is inserted into a locking hole provided at the shaft end of the rubber roll shaft 7a, and both shafts 7a and 20 are connected by a detachable mechanism such as a serration, or the tachometer 20 is installed above the rubber roll. There is one that is attached to the shaft of the feed roll, but in the former case, in order to remove the roll cover, the tachometer 20 must also be removed, and when the tachometer 20 is attached again, the operating shaft and the end of the roll shaft 7a must be removed. In the latter case, the paddy feed roller shaft is driven by a belt from the main shaft that supports the rubber roll, and foreign matter may get mixed into the supplied paddy. When this happens, rotational fluctuations occur due to slips, etc., and the rotational speed of the main shaft, which is the main cause of release, has a defect that cannot be accurately captured.

In view of the above-mentioned conventional deficiencies, the present invention aims to improve this.The operating shaft of the tachometer is directly connected to the main shaft, and the rotation speed of the main shaft can be accurately captured. However, the installation of the tachometer has been devised so that the roll cover can be attached and detached without removing or attaching the tachometer.

The structure of the present invention will be explained with reference to the embodiments shown in FIGS. 1 to 3. 1 is the body of a rice huller;
A stripping device 2 is installed above the front of the machine body 1, and a tilting swing sorting body 3 is supported behind the stripping device 2 so as to be swingable in the longitudinal direction of the machine body. Reference numeral 4 denotes an elevator, which is erected on the side of the fuselage 1 adjacent to the removal device 2. Reference numeral 5 denotes a paddy supply opening frame provided at the upper part of the dehulling device 2, and a paddy hopper 6 is attached to this. It is designed to drop and supply between 7 and 8. One rubber roll 7 is pivotally supported by a main shaft 7a, and the other rubber roll 8 is pivotally supported by a driven shaft 8a.

Reference numeral 9 denotes an end plate which is placed close to and opposite to the outer end surfaces of the rubber rolls 7 and 8, and whose upper end is connected to the paddy supply opening frame 5.
It has a roughly ladder-like shape when viewed from the side. Reference numeral 10 denotes a tachometer attached to the end plate 9, and is attached with the indicator panel facing outward.The operating shaft protruding inward is inserted into a locking hole provided at the shaft end of the main shaft 7a, so that both 10 and 7a are connected by a detachable mechanism such as serrations provided in the insertion section.

Reference numeral 11 denotes a roll cover provided on the removal device 2 to cover the rubber rolls 7 and 8 from the outside of the end plate 9, and has a window hole 11a, from which a display plate of the tachometer 10 projects. Since the display panel faces the operation side opposite to the elevator 4, the driver can easily sense the rotation speed of the main shaft 7a using the display panel. The roll cover 11 is configured so that it can be attached and detached while being attached to the end plate 9 at a rotational speed of 10. 12,13
is a mounting bolt for the roll cover 11.

The reference numeral 17 is a screw rod, on the outer end of which a roll gap adjustment handle 14 is attached, and on the inner end the upper end of a swinging rod 16 that can be rotated about the lower end is pivoted. The driven shaft 8a is pivotally supported in the middle of the swinging rod 16. By operating the adjustment handle 14, the driven shaft 8a is moved to adjust the roll gap. 15
is a paddy feed roll.

The present invention is constructed as described above, and when the paddy is supplied to the paddy hopper 6 and the operation is started, the paddy is removed between the rotating rubber rolls 7 and 8, wind-selected in the machine body 1, and then transferred to the elevator. 4, the brown rice is sorted by a swinging sorter 3, and is discharged outside the machine through a brown rice elevator 4a attached to the elevator 4. In the above operation, the rotation speed of the main shaft 7a is displayed on the display board of the tachometer 10, and the display board shows a constant rotation speed that is slightly lower than when no load is applied in a normal unloaded state. When the roll gap is enlarged, the removal performance decreases and the rotational speed of the main shaft 7a increases from the above-mentioned constant value, and the change can be quickly detected on the display panel. Therefore, in that case, while operating the machine, the roll gap adjustment handle 14 should be operated and adjusted so that the rotation speed becomes normal while looking at the display panel. In addition, when checking the wear condition of the rubber rolls 7 and 8, such as uneven wear, or when the lower part of the rubber rolls 7 and 8 is clogged with rice, the roll cover 11 must be opened. Since it is fixed to the end plate 9 independently of the roll cover 11, there is no need to remove the tachometer 10 when attaching or detaching the roll cover 11, and the process can be done extremely quickly.

In the above embodiment of the present invention, the tachometer is used to indicate the rotation, but as shown in FIG. 4, which is another embodiment, the tachometer is used as a rotation sensor 18, and the sensor Due to the signal, the screw rod 1
It is also possible to operate the drive motor M of No. 7 to automatically adjust the roll gap.
21 in the figure is a control box.

In this invention, a head plate that is closely opposed to the outer end surface of the rubber roll is attached to the frame of the paddy supply opening of a paddy removing device in which a rubber roll is installed on the main shaft and a driven shaft, respectively, and a tachometer is attached to the head plate to operate the rice. A tachometer mounting device for a hulling machine in which the shaft is connected to the main shaft and the head plate is covered with a roll cover detachably attached to the dehulling device, and the tachometer is connected directly to the main shaft which is the main body of dehulling. Because they are connected, it is possible to obtain extremely accurate rotational speed without errors caused by slips, etc. Also, since the tachometer is attached to the end plate regardless of the roll cover, there is no need to attach or remove the tachometer. The roll cover can be quickly attached and detached, which is effective in improving work efficiency.

[Brief explanation of the drawing]

Figures 1 to 3 show an embodiment of a rice huller equipped with the device of the present invention, in which Figure 1 is a side view, Figure 2 is a side sectional view of the main parts, and Figure 3 is a side view of the main parts. is a rear sectional view, FIG. 4 is a rear sectional view showing another embodiment, and FIG.
The figure is a rear sectional view of a conventional example. 5...Paddy supply opening frame, 7...Rubber roll, 7a...
...Main shaft, 8...Rubber roll, 9...End plate, 10...
...Tachometer, 11...Roll cover.

Claims (1)

[Scope of utility model registration request] A head plate that closely opposes the outer end surface of the rubber roll is attached to the frame of the paddy supply opening of the paddy removal device, which has rubber rolls installed on the main shaft and driven shaft, respectively, and a tachometer is attached to the head plate, and the operating shaft is set as the main shaft. A tachometer mounting device for a rice hulling machine, which is connected to the rice huller and covers the end plate with a roll cover detachably attached to the removing device.