JPS6338983Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a heating material conveying device for a ring heater.

In mechanical repair work, there is shrink fitting work that utilizes the difference in thermal expansion of metals to fasten and fasten rotating body parts.

A ring heater (annular metal heating device) is generally used for this shrink fitting operation.

Figures 1a, b, c, and d show conventional methods of heating annular metals using a ring heater. 1 is a ring heater, only the main parts are shown, 2 is a U-shaped core, 3 is a core protection plate, and 4 is a core. The guide, 5 is an I-type core, and 6 is an object to be heated. FIG. 1a is a diagram showing a ring-shaped metal to be heated 6 to be attached to the ring heater 1. Heavier objects are attached to the heat treatment section using a lifting machine, while lighter objects are attached to the heating processing section by hand. FIG. 1b shows the I-shaped core 5 with the heated object 6 placed in a predetermined position.
This shows the state in which induction heating is being performed with the The heating temperature varies depending on the type of the object to be heated 6, but is between 80° and 160°.
It is about ℃. Figure 1c shows the demagnetization process after heat treatment, and the power is turned on (ON) without installing the I-type core 5.
Demagnetization can be achieved by slowly sliding the object 6 to be heated along the core guide 4 in the heating position. In this case, demagnetization can be accomplished quickly by rotating the heated object 6 by 90 degrees.

FIG. 1d shows a situation in which the object to be heated 6 is taken out from the ring heater 1 after the demagnetization process is completed.

In such a heating demagnetization operation, the object to be heated 6
If the weight of the ring heater 1 is large, a lifting machine is used to load and rotate the heated object 6 into the predetermined position of the ring heater 1, which may cause damage to the ring heater 1 due to load swing. There is a risk of getting your hands pinched or getting burned when rotating the charger.

Furthermore, since a lifting machine is used when loading, rotating, and extracting the object to be heated 6 into the ring heater 1, there is a problem in that work efficiency is low.

The present invention has been made to advantageously solve the above-mentioned problems, and its gist is to provide a transport device that is movable on wheels, with a turntable as the receiving surface of the transport device, and a turntable. The table and the board disposed at the bottom of the turntable are insulated, a core insertion hole is provided in the center of the turntable and the board corresponding to the position, and the turntable and the board are connected to the insertion hole. This invention relates to a heating material conveying device for a ring heater, which has a notch in the ring heater.

The present invention will be explained below based on examples.

2 to 5 show one embodiment of the device 7 of the present invention, in which 8 is a turntable on which an object to be heated is placed, 9 is a substrate fixed to the frames 16a, 16b, 16b, and 10 is a turntable. An I-shaped core insertion hole is provided in the center of the table 8 and is similarly formed in the substrate 9. Reference numeral 11 denotes a notch connected to the core insertion hole 10, which is provided in the turntable 8 and the substrate 9, and the notch 11 forms an open portion from the center toward the other end. Reference numeral 12 designates a hand pusher, 13 designates a radial bearing fixedly arranged on the base plate 9, and 14 designates an axis of the bearing. Reference numeral 15 denotes wheels fixed to a frame 16c fixed to the lower part of the frame 16b. Reference numeral 17 denotes an insulating plate 18 which is stretched over the back surface of the turntable 8 and comes into contact with the radial bearing 13.
is an insulating material provided around the core insertion hole 10 of the substrate 9.

That is, the present invention uses the turntable 8 as the load receiving surface, and the core insertion hole 10 is formed in the turntable 8 and the substrate 9 that rotatably supports the turntable 8.
A notch 11 connected to the hole 10 is formed, and the turntable 8 and the substrate 9 are connected to each other using insulating materials 17 and 18.
The key point of this invention is the insulation.

Therefore, the size of the core charging hole 10 is I-type core 5.
The notch 11 connected to the charging hole 10 is such that only the object to be heated 6 is heated when the object to be heated is placed on the turntable 8 and heated by induction. 11, the electric circuit is interrupted and no heating is produced. Therefore, although the spacing between the notches may be small, it is convenient to set the spacing so that the slinging rope can be passed through it without using the notch 11 to lift the object to be heated.

Furthermore, as shown in FIG. 5, an insulating plate 17 is stretched over a part of the bottom surface of the turntable 8, and the turntable 8 is rotated by a bearing 13 disposed on a substrate 9 via an insulating material 17. It is freely supported. An insulating material 18 is provided around the core insertion hole 10 of the substrate 9, and since the turntable 8 and the main body of the apparatus are electrically completely insulated by the insulating material 18, seizure of the bearing 13 does not occur.

Incidentally, as shown in FIG. 2, the recess 1 provided in the substrate 9
In order to quickly and accurately position the device of the present invention when inserting it into the ring heater 1, the width of the recess 19 is formed to match the width of the U-shaped core of the ring heater 1.

Next, how to use the device of the present invention is shown in Figure 6 a, b,
This will be explained using c and d.

FIG. 6a shows a state in which the object to be heated 6 is placed on the turntable of the device of the present invention and inserted into the ring heater 1 for heating, and FIG. 6b shows the I-shaped core 5 inserted into the charging hole 10. This shows the state during heat treatment. Fig. 6c shows the demagnetizing operation after the heat treatment, and the ring heater 1 is turned on, the I-type core 5 is not attached, and the object to be heated is placed on the turntable 8, and the heating section is moved. Making and taking out (←→
mark). This loading and unloading is normally performed 5 to 6 times, but if the heated object 6 is rotated by 90 degrees by the turntable 8 as it is loaded and unloaded, the
Sufficient demagnetization is possible by inserting and removing the magnet three times.

Therefore, since a lifting device such as a crane is not used as in the conventional method, there is an advantage that there is no danger of wires becoming a hindrance during rotation, or damage to the equipment due to load swing, and no risk of being caught.

As explained in detail above, according to the present invention, it is possible to heat and demagnetize the object to be heated 6 while it is placed on the turntable 8, eliminating the need for loading, extraction, and rotation using a lifting machine or manual power as in the past. This has the advantage of preventing disasters such as equipment damage, being pinched, and burns due to load swinging, and greatly improving heating and demagnetizing work efficiency.

[Brief explanation of the drawing]

Figures 1a, b, c, and d are explanatory diagrams showing conventional annular metal heating and demagnetization operations using a ring heater, and Figures 2 to 5 are explanatory diagrams showing embodiments of the device of the present invention. The figure is a plan view, Fig. 3 is a front view, Fig. 4 is a side view, Fig. 5 is an enlarged view of the main part of the section taken along line A-A' in Fig. 2, and Fig. 6 a, b, c, and d are main views. It is an explanatory view showing how to use the invention. 1 is a ring heater, 2 is a U-shaped core, 3 is a core protection plate, 4 is a core guide, 5 is an I-shaped core, 6 is an object to be heated, 7 is a device of the present invention, 8 is a turntable,
9 is a substrate, 10 is a core insertion hole, 11 is a notch, 1
Reference numeral 2 denotes a hand press, 13 a radial bearing, 14 a shaft, 15 a wheel, 16a, 16b, 16c a frame, 17 and 18 an insulating material, and 19 a recess.

Claims (1)

[Scope of utility model registration request] A transport device that is movable with wheels, the load receiving surface of the transport device is a turntable, the turntable and a board disposed at the bottom of the turntable are insulated, and the central part of the turntable and the position thereof are A heated material conveying device for a ring heater, characterized in that a core insertion hole is provided in a substrate corresponding to the substrate, and a notch is provided in a turntable and the substrate connected to the insertion hole.