CN214173629U

CN214173629U - Rigid body rotational inertia data acquisition device

Info

Publication number: CN214173629U
Application number: CN202120136218.5U
Authority: CN
Inventors: 潘贵英; 马彦兵; 曲晓英; 邓雄
Original assignee: Guizhou Minzu University
Current assignee: Guizhou Minzu University
Priority date: 2021-01-19
Filing date: 2021-01-19
Publication date: 2021-09-10
Anticipated expiration: 2031-01-19

Abstract

The utility model discloses a rigid body inertia data acquisition device, including triangle bottom plate, activity disc, fixed disc and threaded rod, surface welding has the stand on the one end of triangle bottom plate, the connecting seat is installed on the top of stand, fixed disc rotates and installs on the connecting seat, the installation disc is installed through the bolt to the lower surface of fixed disc, rotate on the installation disc and install the rolling axle, the epaxial rolling of rolling has the connection rope, the other end bolt system of connection rope is on the activity disc, the one end welding of threaded rod has square pole, state the threaded rod screw thread and install on the installation disc, and square pole activity is pegged graft in the rolling axle. The utility model discloses, compact structure, it is convenient to use, and the three-way pendulum of being convenient for adjust is in the horizontality, ensures measurement accuracy, satisfies personnel's user demand.

Description

Rigid body rotational inertia data acquisition device

Technical Field

The utility model relates to a rigid body inertia technical field specifically is a rigid body inertia data acquisition device.

Background

The moment of inertia is a physical quantity describing the magnitude of the moment of inertia of a rigid body, and is an important physical quantity for researching and describing the rotation rule of the rigid body, which not only depends on the total mass of the rigid body, but also is related to the shape, mass distribution and the position of a rotating shaft of the rigid body.

In practical situations, the moment of inertia of the irregular rigid body is often difficult to calculate accurately and needs to be determined through experiments. There are many methods for measuring the moment of inertia of a rigid body, and three-wire pendulum, torsional pendulum, compound pendulum, etc. are commonly used. The three-line pendulum is used for measuring the rotational inertia of an object through torsional motion, and is characterized by clear physical image, simple and easy operation, and suitability for objects with various shapes, such as mechanical parts, motor rotors, gun shots, fan blades of electric fans and the like. The experimental method has certain practical significance in theory and technology.

At present, three-wire pendulum on the market is troublesome in the balance operation with the wire pendulum in the operation process, and the wire pendulum is in the adjustment process, and the step is loaded down with trivial details, and efficiency is lower, can not satisfy personnel's user demand.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rigid body inertia data acquisition device, possess compact structure, it is convenient to use, is convenient for adjust three-wire pendulum each department and is in the horizontality, ensures measurement accuracy, satisfies personnel user demand's advantage, solves three-wire pendulum on the present market at the in-process of operation, and is comparatively troublesome to the balanced operation with the wire pendulum, and the wire pendulum is in the accommodation process, and the step is loaded down with trivial details, and efficiency is lower, can not satisfy personnel's user demand's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a rigid body inertia data acquisition device, includes triangle bottom plate, activity disc, fixed disc and threaded rod, the one end upper surface welding of triangle bottom plate has the stand, the connecting seat is installed on the top of stand, fixed disc rotates and installs on the connecting seat, the installation disc is installed through the bolt to the lower surface of fixed disc, rotate on the installation disc and install the rolling axle, the epaxial rolling of rolling has the connection rope, the other end bolt system of connection rope is on the activity disc, the one end welding of threaded rod has square pole, state threaded rod screw thread and install on the installation disc, and square pole activity is pegged graft in the rolling axle.

Preferably, the upper surface of the mounting disc is provided with a rotating groove matched with the winding shaft, and the winding shaft is placed in the rotating groove.

Preferably, a square groove matched with the square rod is formed in the middle of the winding shaft, and the square rod is movably inserted into the square groove.

Preferably, a threaded hole matched with the threaded rod is formed in the mounting disc, and the threaded rod is mounted on the threaded hole in a threaded manner.

Preferably, the lower surface of one end of the triangular bottom plate corresponding to the upright column is welded with a fixed leg, and the other two ends of the triangular bottom plate are provided with adjusting bolts in a threaded manner.

Preferably, the number of the connecting ropes is three, and the three connecting ropes are distributed in an annular array relative to the movable disc.

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

1. the rigid body rotational inertia data acquisition device of the utility model can be placed on a table top through the triangular bottom plate when in use, the placing level of the triangular bottom plate is adjusted by screwing the adjusting bolt to adjust the length of the adjusting bolt exposed out of the lower surface of the triangular bottom plate, so that the fixed disc is in a horizontal state, then the threaded rod is rotated, the threaded rod is rotated to move inwards through the thread meshing effect between the threaded rod and the threaded hole, the square rod enters the square groove, the threaded rod rotates to drive the winding shaft to rotate, thereby leading the winding shaft to wind the connecting rope, further adjusting the length of the connecting rope between the movable disc and the fixed disc, therefore, the movable disc is in a horizontal state, the structure is compact, the use is convenient, the three-line pendulum can be conveniently adjusted to be in the horizontal state, the measurement precision is ensured, and the use requirements of personnel are met.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic structural view of the fixed disk and the movable disk of the present invention;

fig. 4 is a schematic structural diagram of a in fig. 3 according to the present invention.

In the figure: 1. adjusting the bolt; 2. a triangular bottom plate; 3. a fixed leg; 4. a movable disc; 5. a column; 6. a connecting seat; 7. fixing the disc; 8. connecting ropes; 9. installing a disc; 10. a winding shaft; 11. a square rod; 12. a threaded rod; 13. a threaded hole; 14. a rotating groove; 15. a square groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the present invention provides an embodiment: the utility model provides a rigid body inertia data acquisition device, including triangle bottom plate 2, activity disc 4, fixed disc 7 and threaded rod 12, surface welding has stand 5 on the one end of triangle bottom plate 2, connecting seat 6 is installed on the top of stand 5, fixed disc 7 rotates and installs on connecting seat 6, the one end lower surface welding that triangle bottom plate 2 and stand 5 correspond has fixed leg 3, adjusting bolt 1 is installed to the other both ends screw thread of triangle bottom plate 2, can put the device on the desktop through triangle bottom plate 2, adjust its length that exposes 2 lower surfaces of triangle bottom plate through twisting adjusting bolt 1 and adjust the level of placing of triangle bottom plate 2, thereby make fixed disc 7 be in the horizontality.

The lower surface of fixed disk 7 is installed installation disc 9 through the bolt, rotates on the installation disc 9 and installs rolling axle 10, and the upper surface of installation disc 9 is seted up with rolling axle 10 looks adaptation rotate the groove 14, and rolling axle 10 is shelved in rotating the groove 14, and the rolling has on the rolling axle 10 to connect rope 8, connects the other end tether of rope 8 on activity disc 4, connects rope 8 totally three, and three connection rope 8 is annular array distribution for activity disc 4.

One end of a threaded rod 12 is welded with a square rod 11, the threaded rod 12 is installed on an installation disc 9 in a threaded manner, a threaded hole 13 matched with the threaded rod 12 is formed in the installation disc 9, the threaded rod 12 is installed on the threaded hole 13 in a threaded manner, the square rod 11 is movably inserted in a winding shaft 10, a square groove 15 matched with the square rod 11 is formed in the middle of the winding shaft 10, the square rod 11 is movably inserted in the square groove 15, the threaded rod 12 is rotated to enable the threaded rod 12 to move inwards through the threaded engagement effect between the threaded rod 12 and the threaded hole 13, the square rod 11 enters the square groove 15 at the moment, the threaded rod 12 rotates to drive the winding shaft 10 to rotate, so that the winding shaft 10 winds the connecting rope 8, the length of the connecting rope 8 between the movable disc 4 and the fixed disc 7 is adjusted, and the movable disc 4 is in a horizontal state, compact structure, it is convenient to use, is convenient for adjust three-way pendulum each and is in the horizontality, ensures measurement accuracy, satisfies personnel's user demand.

The working principle is as follows: the utility model discloses rigid body inertia data acquisition device is in the use, can put the device on the desktop through triangle bottom plate 2, adjust its length that exposes 2 lower surfaces of triangle bottom plate through twisting adjusting bolt 1 and adjust the level of placing of triangle bottom plate 2, thereby make fixed disc 7 be in the horizontality, then rotation threaded rod 12, through the thread engagement effect between threaded rod 12 and screw hole 13, thereby make threaded rod 12 rotate the internalization, at this moment square pole 11 gets into square groove 15 in, threaded rod 12 rotates and drives rolling axle 10 and also produce the rotation, thereby make rolling axle 10 to connect rope 8 to carry out the rolling, thereby adjust the length of being connected rope 8 between activity disc 4 and the fixed disc 7, thereby make activity disc 4 be in the horizontality.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a rigid body inertia data acquisition device, includes triangle bottom plate (2), activity disc (4), fixed disc (7) and threaded rod (12), its characterized in that: surface welding has stand (5) on the one end of triangle bottom plate (2), connecting seat (6) are installed on the top of stand (5), fixed disc (7) are rotated and are installed on connecting seat (6), installation disc (9) are installed through the bolt to the lower surface of fixed disc (7), it installs rolling axle (10) to rotate on installation disc (9), the rolling has connection rope (8) on rolling axle (10), the other end bolt system of connecting rope (8) is on activity disc (4), the one end welding of threaded rod (12) has square pole (11), state threaded rod (12) screw thread and install on installation disc (9), and square pole (11) activity is pegged graft in rolling axle (10).

2. A rigid body moment of inertia data acquisition device as claimed in claim 1, wherein: the upper surface of the mounting disc (9) is provided with a rotating groove (14) matched with the winding shaft (10), and the winding shaft (10) is placed in the rotating groove (14).

3. A rigid body moment of inertia data acquisition device as claimed in claim 1, wherein: the middle position of the winding shaft (10) is provided with a square groove (15) matched with the square rod (11), and the square rod (11) is movably inserted in the square groove (15).

4. A rigid body moment of inertia data acquisition device as claimed in claim 1, wherein: the mounting disc (9) is provided with a threaded hole (13) matched with the threaded rod (12), and the threaded rod (12) is mounted on the threaded hole (13) in a threaded manner.

5. A rigid body moment of inertia data acquisition device as claimed in claim 1, wherein: the lower surface of one end that triangle bottom plate (2) and stand (5) correspond has fixed leg (3), adjusting bolt (1) is installed to the other both ends screw thread of triangle bottom plate (2).

6. A rigid body moment of inertia data acquisition device as claimed in claim 1, wherein: the number of the connecting ropes (8) is three, and the three connecting ropes (8) are distributed in an annular array relative to the movable disc (4).