JPS625883Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of a grindstone lifting fitting that is equipped with a protective device to prevent the grindstone from hitting the cover or the like and being damaged when the grindstone is lifted by the grinding wheel lifting fitting. In order to attach or remove a grindstone from the grindstone shaft of a grinding machine, the grindstone is lifted up and transported by a crane, but at this time, the circumference of the grindstone may hit a grindstone cover or the like and be damaged.

This idea was made to solve the above-mentioned problem, and a whetstone protector was removably attached to the whetstone lifting bracket, and this protector also served as a positioning stand. It is.

Embodiments of this invention will be described below with reference to the drawings. Reference numeral 1 denotes a grinding wheel shaft rotatably supported on a grinding wheel head main body (not shown) of a grinding machine, 2 a grinding wheel flange attached to the tip of this grinding wheel shaft 1, and 3 the grinding wheel flange 2 and lid bodies 4 and 5 on both sides. It is a grinding wheel held by a Reference numeral 6 denotes a grinding wheel lifting fitting; the upper part is a hanging fitting to be hung by a crane; the central part is a tightening part 8 for tightening the grinding wheel flange 2;
At the bottom is a mounting part 10 for attaching a protective gear 9, which will be described later.
The hanging fitting 7, the tightening part 8, and the mounting part 10 are integrally constructed. 11 is a cap nut for tightening the grinding wheel flange 2 to the grinding wheel shaft 1;
12 is a C-shaped washer. Reference numeral 13 denotes a bolt which is screwed into the mounting portion 10 so that its center line coincides with the grinding wheel axis, and has a small diameter portion in the middle and acts as a retainer.
A boss 14 is welded to the protector 9 which is removably connected to the mounting portion 10, and has a bifurcated shape and a vertical pin 15. Reference numeral 16 denotes a lever rotatably attached to this pin 15, which has a thread at its tip and is screwed into handle lever 17. Then, due to the rotation, it fits into a notch opened and cut in the end face of the mounting part 10,
The protective device 9 is tightened to the mounting portion 10 by pinching the mounting portion 10 using the handle lever 17. The protector 9 covers the lower circumference of the whetstone 3 and extends toward the whetstone stand, and is formed in a shape that can be installed on the floor.

Next, the effect will be explained. To remove the grinding wheel 3 from the grinding wheel shaft 1, first, the grinding wheel lifting fitting 6 with the protector 9 attached thereto is sent to the position of the grinding wheel flange 2 using a crane, and the tightening part 8 is tightened to the grinding wheel flange 2. Thereafter, the cap nut 11 is loosened slightly and the C-shaped washer 12 is taken out, the bolt 13 is turned so that the tip touches the top of the cap nut 11, and the bolt 13 is further turned to remove the grindstone flange 2 from the grindstone shaft 1. In addition, the whetstone 3 was placed in the middle of being transported by crane.
When temporarily storing the protector 9, the protector 9 can be placed stably on the floor by simply removing it from the crane and acting as a temporary storage stand. When balancing the grinding wheel 3, the grinding wheel 3 is removed from the grinding wheel shaft 1 and placed temporarily with the protector 9, then hoisted by a crane, manually loosened the handle lever 17, and moved the lever 16 to the pin 15. The attachment part 10 and the protective equipment 9 are separated by rotating around the . Then, a balancing arbor is inserted into the center hole of the grindstone flange 2. At this time, the bolts 13 are loosened and moved back so as not to interfere with the arbor. The grinding wheel is then transported by crane to the position of the balancing device. Furthermore, when the grinding wheel 3 is attached to the grinding wheel shaft 1, the protector 9 is attached to the grinding wheel lifting fitting 6 while the grinding wheel 3 is being transported by a crane and until the attachment is completed.

As described in detail above, in the present invention, the grinding wheel is attached to the grinding wheel shaft, and when the grinding wheel is mounted, a protection device for the grinding wheel is attached to the grinding wheel lifting fitting, so that the grinding wheel is not damaged. This protector can also be used as a temporary stand for the whetstone. Additionally, this protective equipment can be easily removed when it is not needed.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the state in which the grinding wheel lifting bracket with protective device of the present invention is attached to the grinding wheel flange;
The figure is a cross-sectional view of FIG. 6... Grinding wheel lifting fitting, 7... Hanging fitting, 8...
...Tightening part, 9...Protective equipment, 10...Mounting part.

Claims (1)

[Scope of utility model registration request] The grindstone lifting metal fittings for hoisting and transporting the grindstone are
In addition to the hanging bracket that is hung by a crane and the tightening part that is tightened to the whetstone flange, a mounting part is integrally constructed, and the mounting part has a protective device that covers the lower circumference of the whetstone and is shaped so that it can be installed on the floor. A grindstone lifting fixture with a protective gear, which is characterized by being removably attached.