Rotational inertia measuring device

Abstract

A rotational inertia measuring device comprises a base, an n-shaped frame body is arranged on the base, a hinge shaft is arranged at the top of the n-shaped frame body, a rotating frame body is hinged to the lower portion of the hinge shaft, a bottom table is arranged on the lower portion of the rotating frame body, a rotating table is arranged on the bottom table, and a table body is arranged on the rotating table. A plurality of auxiliary supporting parts are arranged on the periphery of the rotating table, the bottoms of the rotating table and the auxiliary supporting parts are fixedly connected with the rotating table, and a position locking piece used for clamping the rotating frame body is arranged on the n-shaped frame body. According to the device, the rotating frame body and the bottom table form the rotating space, and then the rotating table and the auxiliary supporting part are arranged, so that a large component can be conveniently placed on the rotating table, and the rotational inertia of the large component can be conveniently measured.

Description

Technical Field

[0001] The present application relates to a moment of inertia measuring device. Background Art

[0002] The moment of inertia is a measure of the inertia of a rigid body when it rotates around an axis. The main method for measuring the moment of inertia of an object is the three-wire pendulum measurement method. The three-wire pendulum measurement device includes a bracket, an upper plate, a lower plate, three suspension wires, and a relatively rotatable anti-magnetic leakage shell and a magnetic leakage cover plate. The magnetic leakage shell and the magnetic leakage cover plate are made of magnetic conductive materials. The magnetic leakage cover plate is fixedly installed at the bottom of the lower plate. The lower surface of the magnetic leakage cover plate is fixedly installed with a first connecting column. The bottom end of the first connecting column is fixedly installed with a disk. The outer surface of the disk is provided with a number of inner magnets distributed along the circumference. A cylinder is fixedly installed outside the disk in the magnetic leakage shell. The inner surface of the cylinder is provided with a number of outer magnets distributed along the circumference. The outer magnets are arranged corresponding to the inner magnets and the polarity of the opposite surfaces of the two are the same. The main problem of this device is that for objects with larger shapes, the assembly measurement is more difficult, and there is also a certain risk in the measurement process, which affects the versatility of the three-wire pendulum measurement method. Utility Model Content

[0003] In order to solve the above problems, the present application proposes a moment of inertia measuring device, including a base, an n-shaped frame body is arranged on the base, a hinge shaft is arranged on the top of the n-shaped frame body, a rotating frame body is hingedly arranged below the hinge shaft, a bottom table is arranged at the lower part of the rotating frame body, a rotating table is arranged on the bottom table, and a main body is arranged on the rotating table; a plurality of auxiliary support parts are arranged around the rotating table, the bottom of the rotating table and the auxiliary support parts are fixedly connected to the rotating table, and a position locking part for clamping the rotating frame body is arranged on the n-shaped frame body. The present application adopts the rotating frame body and the bottom table to form a rotating space, and then by setting the rotating table and the auxiliary support parts, it is convenient to place large components on the rotating table, so that the moment of inertia of large components can be conveniently measured.

[0004] Preferably, an annular groove is provided at the bottom of the rotating table, and the auxiliary support parts are evenly distributed below the annular groove. The auxiliary support parts include an auxiliary cylinder, and the auxiliary cylinder rod extends out of the auxiliary cylinder and is movably inserted into the annular groove. The present application can adjust the height direction of the rotating table by providing the auxiliary support parts to avoid tilting during use, and when the center of gravity of the object being measured is offset, the auxiliary support parts can be used to adjust the center of gravity position.

[0005] Preferably, the number of the auxiliary support parts is not less than three, and they are arranged with the rotating table as the center.

[0006] Preferably, the position locking member includes a transverse hinge shaft hingedly arranged with the N-shaped frame body, a transverse hinge plate hingedly arranged on the transverse hinge shaft, a U-shaped clamping plate arranged on the transverse hinge plate, and the U-shaped clamping plate movably clamped and arranged on the outer side of the rotating frame body. When the present application needs to put in items, the U-shaped clamping plate can be used to lock the rotating frame body to ensure the safety of the transfer process and prevent it from shaking back and forth.

[0007] Preferably, the rotating frame body is two rectangular frames arranged opposite to each other, and the inner side of the U-shaped clamping plate is movably clamped with the outer side of the rectangular frame.

[0008] Preferably, a snap-fitting protrusion is provided at a position of the hinge shaft corresponding to the rotating frame body, and the rotating frame body is provided with a snap-fitting groove matched with the snap-fitting protrusion.

[0009] Preferably, a rotary bearing is provided on the n-shaped frame, and the hinge shaft passes through the rotary bearing.

[0010] This application can bring the following beneficial effects:

[0011] 1. The present application adopts a rotating frame and a bottom table to form a rotating space, and then by setting a rotating table and an auxiliary support part, large components can be conveniently placed on the rotating table, thereby conveniently measuring the moment of inertia of large components.

[0012] 2. The present application can adjust the height direction of the rotating table by setting up the auxiliary support part to avoid tilting during use. When the center of gravity of the object being measured itself shifts, the auxiliary support part can be used to adjust the center of gravity position.

[0013] 3. When the object needs to be placed in the container, the rotating frame can be locked by a U-shaped clamping plate to ensure the safety of the transfer process and prevent it from shaking back and forth. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of this application;

[0016] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0017] Figure 3 for Figure 1 A schematic diagram of the enlarged structure of part B;

[0018] Figure 4 This is a schematic diagram of the top view of the structure of this application. DETAILED DESCRIPTION

[0019] In order to clearly illustrate the technical features of the present solution, the present application is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0020] In the first embodiment, if Figure 1 As shown, a moment of inertia measuring device includes a base 1, an n-shaped frame body 2 is arranged on the base 1, a hinge shaft 3 is arranged on the top of the n-shaped frame body 2, a rotating frame body 4 is hingedly arranged below the hinge shaft 3, a bottom platform 5 is arranged at the lower part of the rotating frame body 4, a rotating table 6 is arranged on the bottom platform 5, and a main body 7 is arranged on the rotating table 6; a plurality of auxiliary supporting parts 8 are arranged around the rotating table 6, the bottom of the rotating table 6 and the auxiliary supporting parts 8 are fixedly connected to the rotating table 6, and a position locking member 9 for clamping the rotating frame body 4 is arranged on the n-shaped frame body 2.

[0021] When in use, the table body 7 is rotated relative to the rotating table 6 to the outside, and then the object whose moment of inertia is to be measured is placed on the table body 7, and then the table body 7 is returned to its original position by rotating the rotating table, and then the moment of inertia can be measured by the compound pendulum method.

[0022] In the second embodiment, if Figure 1-4As shown, a moment of inertia measuring device includes a base 1, an n-shaped frame 2 is arranged on the base 1, a hinge shaft 3 is arranged on the top of the n-shaped frame 2, a rotating frame 4 is hingedly arranged below the hinge shaft 3, a bottom platform 5 is arranged at the bottom of the rotating frame 4, a rotating table 6 is arranged on the bottom platform 5, and a main body 7 is arranged on the rotating table 6; a plurality of auxiliary support parts 8 are arranged around the rotating table 6, the bottom of the rotating table 6 and the auxiliary support parts 8 are fixedly connected to the rotating table 6, and a position locking member 9 for clamping the rotating frame 4 is arranged on the n-shaped frame 2. An annular groove 10 is arranged at the bottom of the rotating table 6, and the auxiliary support parts 8 are evenly arranged below the annular groove 10. The auxiliary support parts 8 include an auxiliary cylinder 11, and the auxiliary cylinder rod 12 extends out of the auxiliary cylinder 11 and is movably inserted into the annular groove 10. The number of the auxiliary support parts 8 is not less than three, and they are arranged with the rotating table 6 as the center. The position locking member 9 includes a transverse hinge shaft 13 hingedly set with the n-shaped frame body 2, a transverse hinge plate 14 hingedly set on the transverse hinge shaft 13, a U-shaped clamping plate 15 is set on the transverse hinge plate 14, and the U-shaped clamping plate 15 is movably clamped and set on the outer side of the rotating frame body 4. The rotating frame body 4 is two rectangular frames arranged opposite to each other, and the inner side of the U-shaped clamping plate 15 is movably clamped and set with the outer side of the rectangular frame. A clamping protrusion 16 is set at the position of the hinge shaft 3 corresponding to the rotating frame body 4, and the rotating frame body 4 is provided with a clamping groove arranged in cooperation with the clamping protrusion 16. A rotating bearing 17 is set on the n-shaped frame body 2, and the hinge shaft 3 is set through the rotating bearing 17.

[0023] When storing, the U-shaped clamping plate 15 is clamped on the rotating frame body 4 composed of a rectangular frame to avoid displacement. When in use, the lock is released, the table body 7 is rotated relative to the rotating table 6 to the outside, and then the object whose moment of inertia is to be measured is placed on the table body 7, and then the rotating table is used to rotate the table body 7 back to its original position, and then the moment of inertia can be measured by the compound pendulum method.

[0024] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. A moment of inertia measuring device, characterized in that: It includes a base, an n-shaped frame body is arranged on the base, a hinge shaft is arranged on the top of the n-shaped frame body, a rotating frame body is hingedly arranged below the hinge shaft, a bottom platform is arranged at the lower part of the rotating frame body, a rotating table is arranged on the bottom platform, and a main body is arranged on the rotating table; a plurality of auxiliary support parts are arranged around the rotating table, the bottom of the rotating table and the auxiliary support parts are fixedly connected to the rotating table, and a position locking part for clamping the rotating frame body is arranged on the n-shaped frame body.

2. A moment of inertia measuring device according to claim 1, characterized in that: An annular groove is arranged at the bottom of the rotating table, the auxiliary support parts are evenly arranged below the annular groove, and the auxiliary support parts include an auxiliary cylinder, the auxiliary cylinder rod extends out of the auxiliary cylinder and is movably inserted into the annular groove.

3. A moment of inertia measuring device according to claim 2, characterized in that: The number of the auxiliary support parts is not less than three, and they are arranged with the rotating table as the center.

4. The moment of inertia measuring device according to claim 1, characterized in that: The position locking member comprises a transverse hinge shaft hinged to the n-shaped frame body, a transverse hinge plate hinged on the transverse hinge shaft, a U-shaped clamping plate is arranged on the transverse hinge plate, and the U-shaped clamping plate is movably clamped on the outer side of the rotating frame body.

5. The moment of inertia measuring device according to claim 4, characterized in that: The rotating frame body is two rectangular frames arranged opposite to each other, and the inner side of the U-shaped clamping plate is movably clamped with the outer side of the rectangular frame.

6. The moment of inertia measuring device according to claim 1, characterized in that: The hinge shaft is provided with a clamping protrusion at a position corresponding to the rotating frame body, and the rotating frame body is provided with a clamping groove matched with the clamping protrusion.

7. The moment of inertia measuring device according to claim 1, characterized in that: The n-shaped frame is provided with a rotary bearing, and the hinge shaft is provided through the rotary bearing.

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