JPH084372B2 - Bearing device for testing single bearing rotating machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention tests a rotating machine such as a single-bearing generator, which is driven by being combined with an engine, by supporting both bearings without performing special extraction work. The present invention relates to a test bearing device capable of performing.

[Conventional technology]

A conventional example of a test bearing device for a single bearing rotating machine will be described with reference to FIG. This figure shows the state of the engine-driven single-bearing generator 1 at the time of testing. The generator 1 has a bearing only at one end of a rotating shaft (not shown), and has a cylindrical shape that is coupled to a flywheel housing of the engine (not shown) when in use. The other end surface of the frame (rotating machine main body) 2 is attached to the vertical surface of the L-shaped surface plate 3 and the installation leg 4 of the frame 2 is attached to the surface plate 3
It is fixedly installed on the horizontal plane. The other end of the rotary shaft is provided with a coupling 5 which is coupled to a flywheel of an engine (not shown) at the time of use. The coupling 5 penetrates a vertical surface of the surface plate 3 and is rotatable by a pedestal type bearing 6. It is connected to the supported test rotary shaft 7.

[Problems to be Solved by the Invention]

With the above structure, it is possible to perform a test with both bearings supported, but since the surface plate 3 and the pedestal type bearing 6 are independent of each other, it is necessary to combine them while producing the extruding accuracy and the surface runout accuracy each time. It has a drawback that it requires a lot of troubles for taking out work.

In order to eliminate the above-mentioned drawbacks, an object of the present invention is to provide a bearing device for a test of a single-bearing rotating machine, which is capable of supporting both bearings and performing a test without performing a special extraction work or the like. And

[Means for solving the problem]

In order to achieve the above-mentioned object, the present invention provides a test rotary shaft that is connected to the other end of a rotary shaft having a bearing only at one end
17 and a bearing stand 16 that supports the same and is coupled to the frame of the rotating machine.

[Action]

By directly attaching the single-bearing rotating machine 1 to the test bearing device, both bearings can be supported and tested with high precision without performing special extraction work.

〔Example〕

FIG. 1 shows an embodiment of the present invention, and those designated by the same reference numerals as those in FIG. 2 are the same parts. This figure shows the state of an engine-driven single-bearing generator (rotating machine) 1 at the time of testing, in which a coupling 5 is provided at the other end of a rotating shaft (not shown) of the generator 1 having a bearing only at one end. Test rotating shaft 17
The cylindrical frame (rotating machine main body) 2 is joined and supported at the other end surface thereof to the bearing stand 16 that rotatably supports the test rotating shaft 17. According to this embodiment, the single-bearing generator 1 is directly attached to the test bearing device, so that both bearings can be supported and tested with high precision without performing special extraction work.

〔The invention's effect〕

According to the present invention, in the test bearing device for a single-bearing rotary machine, the test rotary shaft and the bearing stand that supports the test rotary shaft are configured, and the single-bearing rotary machine is directly attached to the bearing device. An effect is obtained that both bearings can be supported and tested with high precision without performing ejection work.

Further, according to the present invention, since the rotating machine and the bearing stand are integrated by connecting the frame of the rotating machine and the bearing stand to each other, only one of the rotating machine and the test bearing device is externally connected for some reason. Even if force acts
An external force is applied to the integrated rotating machine and the test bearing device, and as a result, it is possible to prevent an unexpected force from acting on the coupling between the rotating shaft and the test bearing device. .

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of the present invention, and FIG. 2 is a vertical sectional view of a conventional example. 1 …… Rotary machine, 2 …… Rotary machine main body, 16 …… Bearing stand, 17 …… Test rotary shaft.

Claims (1)

[Claims] 1. A test bearing device for a rotary machine having a bearing only at one end of a rotary shaft, the test rotary shaft being coupled to the other end of the rotary shaft, and supporting the test rotary shaft. A bearing device for testing a rotating machine, comprising a bearing stand connected to a frame of the rotating machine.