CN204740100U - A tooling mechanism for testing the equatorial moment of inertia of a rotating body - Google Patents

Abstract

The utility model discloses a solid of revolution equator inertia test fixture mechanism, including base plate and centering chi, install two guide rails on the base plate, install fixed V type frame and liftable V type frame on the guide rail, just fix the left side of V type chord position in liftable V type frame, be equipped with the locating hole between fixed V type frame and the liftable V type frame, all install the dog on fixed V type frame and the liftable V type frame, be equipped with two rubber gyro wheels that are the V type in the liftable V type frame. The utility model discloses installing the dog in the middle of the simple structure, base plate, can measuring the product focus distance central apart from the base plate through the centering chi, the rubber gyro wheel on the usable liftable V type frame removes the solid of revolution, and is light convenient.

Description

A tooling mechanism for testing the equatorial moment of inertia of a rotating body

technical field

The utility model relates to a measuring frock mechanism, in particular to a revolving body equatorial moment of inertia testing frock mechanism.

Background technique

The existing equatorial moment of inertia measurement tooling mechanism has a complex structure, which is difficult to accurately center and affects the swing measurement, so the measurement accuracy is not high; and when measuring large workpieces, it is difficult for the product to coincide with the axis of the torsion bar after direct hoisting, and at the same time the heavy product There is a high potential for impact forces on the thrust ball bearings carried under the torsion bar.

Utility model content

The purpose of this utility model is to provide a simple structure, easy to use equatorial moment of inertia testing tooling mechanism to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A tooling mechanism for testing the equatorial moment of inertia of a revolving body, including a base plate and a centering ruler, two guide rails are installed on the base plate, a fixed V-shaped frame and a liftable V-shaped frame are installed on the guide rails, and the fixed V-shaped frame is mounted on the fixed V-shaped frame. The frame is located on the left side of the liftable V-frame, and a positioning hole is arranged between the fixed V-frame and the liftable V-frame.

As a further solution of the utility model: both the fixed V-shaped frame and the liftable V-shaped frame are equipped with stoppers.

As a further solution of the utility model: the liftable V-shaped frame is provided with two V-shaped rubber rollers.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model has a simple structure, and a stopper is installed in the middle of the base plate. The distance between the center of gravity of the product and the center of the base plate can be measured through the centering ruler, and the revolving body can be moved easily and conveniently by using the rubber roller on the liftable V-shaped frame.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

Please refer to Figure 1, a tooling mechanism for testing the equatorial moment of inertia of a rotating body, including a base plate 1 and a centering ruler 2, two guide rails 3 are installed on the base plate 1, and a fixed V-shaped frame 4 and a fixed V-shaped frame 4 are installed on the guide rail 3. Liftable V-shaped frame 5, and the fixed V-shaped frame 4 is located on the left side of the liftable V-shaped frame 5, and both the fixed V-shaped frame 4 and the liftable V-shaped frame 5 can move on the guide rail 3 and are in place Afterwards, it can be locked, and a positioning hole 6 is provided between the fixed V-shaped frame 4 and the liftable V-shaped frame 5, and stoppers 7 are installed on the fixed V-shaped frame 4 and the liftable V-shaped frame 5.

The inertia value of the base plate 1 and the tooling is as small as possible, and cannot exceed the moment of inertia value of the rotating body to be measured. The base plate 1 is provided with a positioning hole 6 for positioning and connecting with the tooling, which ensures the accuracy of the positioning of the tooling. The form can measure the polar moment of inertia and equatorial moment of inertia of the rotating body.

There is a positioning reference on the base plate 1. The positioning reference is two mutually perpendicular surfaces, one side is parallel to the axial direction of the product, and the other side passes through the rotating shaft. When working, firstly align the two planes of the ruler 2 with the stopper 7 , and then put the centering ruler 2 against the rotating body and align it with the center of mass mark on the measuring frame to complete the positioning of the rotating body, that is, when centering, align the short side of the centering ruler 2 parallel to the product axis The long side is aligned with the surface passing the rotating shaft, so that the long side of the centering ruler 2 is on the surface passing the rotating shaft and perpendicular to the product axis, and then the product is moved so that the axial centroid mark of the product is aligned with the centering ruler 2 At this time, the center of mass of the product passes through the rotating shaft; the centering ruler 2 is not installed on the test equipment, and after positioning, remove the centering ruler 2 to perform other tasks of the equatorial moment of inertia test. Simple and reliable without compromising swing measurements.

Both the fixed V-shaped frame 4 and the liftable V-shaped frame 5 can slide freely to adapt to rotating bodies of different lengths. For rotary bodies with different diameters, the alignment ruler 2 is equipped to align the center of mass of the rotary body with the center of the base plate 1 for testing when the rotary body is placed.

The base plate 1 is welded by profiles, and then the guide rail 3 is processed. The fixed V-shaped frame 4 and the liftable V-shaped frame 5 are installed on the guide rail 3, and the fixed V-shaped frame 4 and the liftable V-shaped frame 5 can carry and rotate The role of the body cylinder, by fixing the V-shaped frame 4 and the liftable V-shaped frame 5, can make the axis of the rotating body parallel to the guide rail of the base plate 1 and position it to adapt to the rotating body to be tested. The fixed V-shaped frame 4 and the liftable V-shaped frame 5 can slide freely on the guide rail 3 and can be locked at any position. By adjusting the distance between the fixed V-shaped frame 4 and the liftable V-shaped frame 5, different lengths of the rotation to be tested can be met. Body requirements, there is a centering ruler 2 in the middle of the substrate 1, and the centering ruler 2 can align the center of mass of the rotating body with the center of the substrate 1 when measuring the equatorial moment of inertia of the rotating body.

The interior of the base plate 1 is equipped with a central shaft system, a torsion bar, and a periodic testing device. The horizontal fixture is provided with a set of V-shaped frames, and the center clamps the rotating body. The release mechanism adopts a roller mechanism. The periodic testing device is mainly composed of photoelectric Composed of a shooting sensor and a pendulum needle, installed inside the base, the photoelectric shooting sensor and the external wiring socket can be connected to the industrial computer through a cable.

The liftable V-frame 5 is provided with two V-shaped rubber rollers 8. During the centering process of the rotary body, the rotary body can be pushed forward and backward through the rubber rollers 8, and the rubber rollers 8 can be locked after the centering is completed. , so that the gyrator no longer moves.

The utility model has a simple structure, and a stopper 7 is installed in the middle of the base plate 1. The distance between the center of gravity of the product and the center of the base plate 1 can be measured through the centering ruler 2, and the rotating body can be moved by using the rubber roller 8 on the liftable V-shaped frame 5, which is easy convenient.

The preferred implementation of this patent has been described in detail above, but this patent is not limited to the above-mentioned implementation. Within the scope of knowledge of those of ordinary skill in the art, various implementations can be made without departing from the purpose of this patent. kind of change.

Claims (3)

1. a solid of revolution equator moment of inertia test fixture mechanism, it is characterized in that, comprise substrate (1) and centering chi (2), described substrate (1) is provided with two guide rails (3), described guide rail (3) is provided with fixing V-type frame (4) and liftable V-type frame (5), and described fixing V-type frame (4) is positioned at the left side of liftable V-type frame (5), between described fixing V-type frame (4) and liftable V-type frame (5), be provided with pilot hole (6).

2. solid of revolution equator moment of inertia test fixture mechanism according to claim 1, is characterized in that, described fixing V-type frame (4) and liftable V-type frame (5) are all provided with block (7).

3. solid of revolution equator moment of inertia test fixture mechanism according to claim 1, is characterized in that, is provided with two V-shaped rubber rolls (8) in described liftable V-type frame (5).