JPH0735153A - Coupling cover - Google Patents

Abstract

PURPOSE:To provide a coupling cover which is able to cool a heating part without setting up aby cooling system in a driven machine. CONSTITUTION:An induction blade 2 is installed in the inner part of a coupling cover 1, and air is taken out of an inlet port 3 at the side of a driving machine, whereby this air can be blown off out of a supply opening 4 at the side of a driven machine. In brief, a blast of air for cooling is made achievable to a heating part of the driven machine. Accordingly, since such a requirement as installing a cooling fan and a water jacket in the heating part of these rotary machines falls into disuse, a system in the rotary machine is thus simplifiable and an ambient noise and an efficiency drop can be prevented from occurring.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coupling or a flywheel cover in a rotary machine, and more particularly,
The present invention relates to a coupling cover which is suitable for cooling a heat generating part of a rotating machine.

[0002]

2. Description of the Related Art FIGS. 3, 4, 5, and 6 are views showing a conventional example. FIG. 3 shows a conventional coupling cover. In FIG. 3, 1 is a coupling cover and 5 is a flow of air. This coupling cover is a kind of cover for preventing an operator around the rotating machine from touching the rotating body. FIG. 4 shows an example in which the coupling cover of FIG. 3 is used in a rotary machine. In FIG. 4, 6 is a drive machine and 8 is a driven machine. In the case of the use example shown in FIG.
The air flow 5 generated from the driving machine 6 is blocked by the coupling cover 1 and does not flow to the driven machine side. Also, the air that has entered the coupling cover is the air flow 5 in FIG.
As shown in, it does not flow to the driven side. For this reason, the heat generated from the driven machine heat generating part is supplied to the air flow 5 from the drive machine 6.
Can not be cooled by. As a result, a cooling device for the heat generating portion must be installed on the driven machine 8.

5 and 6 are explanatory views showing a conventional example in which a cooling device for a heat generating portion is installed in a driven machine. In FIG. 5, 9 is a fan and 10 is a bearing. The cooling device sends a large amount of air flow 5 to the driven machine 8 by the fan 9,
This is because the bearing 2 is cooled by heat exchange. However, since the fan 9 is rotated, a load is applied to the driving machine 6 and causes a reduction in the efficiency of the rotary machine. In addition, noise is generated due to the wind noise when the fan 9 rotates.

FIG. 6 is a diagram showing a conventional example in which the heat generating portion of the driven machine 8 is cooled by a method different from that of FIG. In FIG.
Reference numeral 11 is a water jacket, and 12 is a flow of water. The present cooling device takes into consideration cooling of the bearing 10 by exchanging heat generated by the bearing 10 with the flow 12 of water flowing in the water jacket 11. However, the structure becomes complicated by installing the water jacket 11 on the driven machine 8. Further, a device for supplying cooling water is also required, which is a factor that complicates the system for operating the rotating machine.

[0005]

Although the coupling cover has a simple structure, it is a factor that impedes the flow of air sent from the driving machine. Therefore, when the driven machine has a heat generating portion such as a bearing, the air blown from the drive machine cannot be used for cooling the bearing. Therefore, it is necessary to install a cooling device on the driven machine side.

An object of the present invention is to provide a coupling cover which can cool a heat generating portion without installing a cooling device on a driven machine.

[0007]

In order to achieve the above object, the present invention provides a coupling cover having a cylindrical shape,
In addition to having an air inlet and air outlet, and providing guide vanes inside the cover to control the flow of air, air is sucked in from the inlet of the coupling cover and blown to the driven machine side from the air outlet to generate heat. It is characterized by cooling.

[0008]

According to the present invention, air can be sucked from the suction port of the coupling cover, and the air can be blown out from the outlet of the coupling cover by controlling the air to the driven side by the guide vanes inside the coupling cover. Therefore, the heat generating portion of the driven machine can be cooled by heat exchange.

[0009]

An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an explanatory view showing the structure of the coupling cover of the present invention, and FIG. 2 is a view showing an example in which the coupling cover of FIG. 1 is used in a rotary machine.

In FIG. 1, 1 is a coupling cover,
Reference numeral 2 is a guide blade, 3 is a suction port, 4 is an outlet, and 5 is a flow of air. Further, in FIG. 2, 6 is a driving machine, 7 is a coupling, and 8 is a driven machine.

The coupling 7 is rotated by a driving machine and has a function of sucking air from the outside of the coupling cover 1 through the suction port 3 by the disc friction generated between the outer peripheral portion and the air. The sucked air goes around the inside of the outer plate of the coupling cover 1 and is blown out to the outside of the coupling cover 1. However, since the outer peripheral portion of the coupling 7 is smooth, the air flow should be controlled in a fixed direction. Is difficult. Therefore, a plurality of guide vanes 2 are provided inside the coupling cover 1 to control the flow of air to the driven machine side. The air sent to the driven machine side by the guide vanes 2 is blown out from the air outlet. Since the heat generating part of the driven machine 8 is cooled by heat exchange with the air sent from the outlet 4, it is possible to prevent abnormal heat generation of the heat generating part without installing a cooling device in the driven machine 8.

[0013]

According to the coupling cover with a cooling function of the present invention, since a cooling fan is not required, noise due to the rotation of the fan can be prevented, and further, the efficiency of the rotating machine due to the cooling fan is reduced. Has the effect of preventing

Further, since a cooling device such as a water jacket is unnecessary, the operating system of the rotary machine can be simplified and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a coupling cover according to an embodiment of the present invention.

2 is an explanatory view of an example of use of the coupling cover in FIG. 1 in a rotary machine.

FIG. 3 is an explanatory view of a conventional coupling cover.

4 is an explanatory view of the flow of air when the coupling cover of FIG. 3 is used.

FIG. 5 is an explanatory diagram of a cooling method when a cooling fan is used.

FIG. 6 is an explanatory diagram of a cooling method when a water jacket is used.

[Explanation of symbols]

1 ... Coupling cover, 2 ... Guide blade, 3 ... Suction port,
4 ... Blowout port, 5 ... Air flow, 6 ... Driving machine, 7 ... Coupling, 8 ... Driven machine, 9 ... Fan, 10 ... Bearing, 11 ...
Water jacket, 12 ... water flow.

Claims (1)

[Claims] 1. In a cover of a coupling or a flywheel for a rotary machine, the cover has a cylindrical shape, has an air inlet and an air outlet, and is provided with an inner guide vane for controlling the air flow. Coupling cover featuring.