CN111951645A - Bending bolt group mechanics model teaching aids - Google Patents

Abstract

The invention provides a teaching aid for a mechanical model of a bending bolt group, including a fixing plate, the fixing plate includes a fixing plate A and a fixing plate B, and the fixing plate A and the fixing plate B are arranged in parallel; Press deformation plate A, extrusion deformation plate B; connecting plate, the connecting plate includes connecting plate A and connecting plate B, one end of connecting plate A is fixedly installed on fixed plate A, the other end is sleeved on the connecting shaft, and one end of connecting plate B is fixed Installed on the fixed plate B, the other end is sleeved on the connecting shaft; several rows of deformable screws, the deformable screws pass through the holes on the fixed plate A, the fixed plate B, the extrusion deformation plate A, and the extrusion deformation plate B. The fixed plate A is fixed, the fixed plate B and the extrusion deformation plate B are pivoted around the connecting shaft, and the extrusion deformation plate A, the extrusion deformation plate B, and the deformable screw are deformed, so as to realize the deformation of the display force, which is convenient for Carry out the teaching of mechanical analysis of bending bolt groups.

Description

Bending bolt group mechanics model teaching aids

technical field

The invention relates to a mechanical model teaching aid, in particular to a mechanical model teaching aid for a bending bolt group.

Background technique

In the teaching process of mechanical analysis of bending bolt groups, due to the change of the rotation axis of the bolt group and the corresponding stress-strain relationship, students have great difficulties in understanding the changing force and analysis process. There is a relatively intuitive understanding of problem understanding, and the present invention is specially designed to facilitate the teaching of such mechanical problems.

SUMMARY OF THE INVENTION

Aiming at the deficiencies of the prior art, the present invention provides a mechanical model teaching aid for a bending bolt group. The fixing plate A is fixed, the fixing plate B and the extrusion deformation plate B are pivoted around the connecting shaft, and the extrusion deformation plate A and the extrusion deformation plate B are pivoted. The deformation plate B and the deformable screw are deformed, so as to realize the deformation of the display force and facilitate the teaching of the mechanical analysis of the bending bolt group.

In order to realize the above-mentioned purpose, the present invention provides the following technical scheme: the mechanical model teaching aid of the bending bolt group, including,

The fixed plate, the fixed plate includes a fixed plate A and a fixed plate B, and the fixed plate A and the fixed plate B are arranged in parallel;

Extrusion deformation plate, extrusion deformation plate includes extrusion deformation plate A, extrusion deformation plate B, extrusion deformation plate A is fixedly connected to fixed plate A, extrusion deformation plate B is fixedly connected to extrusion deformation plate B, extrusion deformation plate A and extrusion deformation plate B have no extrusion contact fit;

The connecting plate, the connecting plate includes a connecting plate A and a connecting plate B, the connecting plate B is located on the opposite sides of the fixing plate A and the fixing plate B respectively, one end of the connecting plate A is fixedly installed on the fixing plate A, and the other end is sleeved on the connecting shaft , one end of the connecting plate B is fixedly installed on the fixed plate B, and the other end is sleeved on the connecting shaft, and the connecting shaft is at least matched with one of the connecting plate A and the connecting plate B;

Several rows of deformable screws, the deformable screws pass through the holes on the fixed plate A, the fixed plate B, the extrusion deformation plate A, and the extrusion deformation plate B, and the two ends of the deformable screws are provided with positioning pieces to connect the fixed plate A, The fixed plate B, the extrusion deformation plate A, and the extrusion deformation plate B are fixed in the axial direction of the deformable screw.

On the basis of the above solution, preferably, the deformable screws are arranged in 4 rows and 2 rows.

On the basis of the above solution, preferably, the materials of the fixing plate, the extrusion deformation plate, and the connecting plate are transparent materials.

On the basis of the above solution, preferably, the material of the deformable screw is rubber or plastic.

On the basis of the above solution, preferably, the positioning member is a nut.

On the basis of the above solution, preferably, the connecting shaft is a pin.

On the basis of the above solution, preferably, the connecting plate A and the fixing plate A and the connecting plate B and the fixing plate B are bonded and fixed.

On the basis of the above solution, preferably, the horizontal plane where the axis of the lowermost row of deformable screws is located is the same plane as the horizontal plane where the axis of the connecting plate is located, or

The horizontal plane where the axis of the connecting plate is located is located on the center plane of the matrix formed by several rows of deformable screws.

Compared with the prior art, the beneficial effects of the present invention are:

1. Fix the fixed plate A, the fixed plate B and the extrusion deformation plate B rotate with the connecting shaft as the pivot axis, the extrusion deformation plate A, the extrusion deformation plate B, and the deformable screw are deformed, so as to realize the deformation of the display force , to facilitate the teaching of mechanical analysis of bending bolt groups.

2. It is better to use a transparent material, or a combination of translucent material or partial transparency, so as to facilitate the observation of the deformation of the deformable screw. Among them, the deformable screw has the best color.

3. The method of bonding and fixing does not require drilling holes on the fixing plate to facilitate fixing the connecting plate, and the installation process is fast and convenient. A bump is arranged on the connecting plate, and the bump can be quickly fixed by being stuck in the groove and then bonded.

Description of drawings

Fig. 1 is the structural representation of the present invention;

Figure 2 is a schematic diagram of the cooperation between the fixed plate A and the extrusion deformation plate A;

Figure 3 is a schematic diagram of the cooperation between the fixed plate B and the extrusion deformation plate B;

Fig. 4 is the left side view of Fig. 1;

FIG. 5 is a schematic diagram of the structure of the connecting plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention. The original performance of the parts can be disassembled.

As shown in Figure 1-5, the teaching aids for the mechanical model of the bending bolt group include:

The fixed plate, the fixed plate includes a fixed plate A1, a fixed plate B2, and the fixed plate A and the fixed plate B are arranged in parallel;

Extrusion deformation plate, extrusion deformation plate includes extrusion deformation plate A3, extrusion deformation plate B4, extrusion deformation plate A is fixedly connected to fixed plate A, extrusion deformation plate B is fixedly connected to extrusion deformation plate B, extrusion deformation plate A and extrusion deformation plate B have no extrusion contact fit;

Connecting board, the connecting board includes connecting board A5, connecting board B6, connecting board A and connecting board B are respectively located on opposite sides of fixed board A and fixed board B, one end of connecting board A is fixedly installed on fixed board A, and the other end is sleeved On the connecting shaft, one end of the connecting plate B is fixedly installed on the fixing plate B, and the other end is sleeved on the connecting shaft 9, and the connecting shaft is at least one clearance fit between the connecting plate A and the connecting plate B;

Several rows of deformable screws 12, the deformable screws pass through the holes 8 on the fixed plate A, the fixed plate B, the extrusion deformation plate A, and the extrusion deformation plate B, and the two ends of the deformable screws are provided with the fixed plate A, The fixing plate B, the extrusion deformation plate A, and the extrusion deformation plate B are fixed to the positioning member 7 in the axial direction of the deformable screw.

Among them, the connecting plate A and connecting plate B are symmetrically arranged around the vertical plane where the axis of the connecting shaft is located, or they can be arranged asymmetrically. good.

The connecting plate A and the connecting plate B are provided with a mounting portion 10 at one end to be fixedly connected to the corresponding fixing plate A and the fixing plate B, and the other end is installed with the connecting shaft through the pin hole, so that the fixing plate B and the extrusion deformation plate B can be connected to each other. The axis rotates around the center.

The horizontal plane where the axis of the lowermost row of deformable screws is located is the same plane as the horizontal plane where the axis of the connecting plate is located, or

The horizontal plane where the axis of the connecting plate is located is located on the center plane of the matrix formed by several rows of deformable screws.

In the above scheme, when in use, the fixed plate A is fixed, the fixed plate B and the extrusion deformation plate B are pivoted around the connecting shaft, and the extrusion deformation plate A, the extrusion deformation plate B, and the deformable screw are deformed, thereby Realize the deformation of the display force, which is convenient for the teaching of mechanical analysis of the bending bolt group.

The deformable screws are arranged in 4 rows and 2 columns.

The material of the fixing plate, the extrusion deformation plate and the connecting plate is transparent material. It is better to use a transparent material, or a combination of translucent material or partial transparency, so as to facilitate the observation of the deformation of the deformable screw. Among them, the deformable screw has the best color.

The deformable screw is made of rubber or plastic.

The positioning piece is a nut.

The connecting shaft is a pin.

The connecting plate A and the fixing plate A and the connecting plate B and the fixing plate B are glued and fixed.

The method of bonding and fixing eliminates the need to drill holes on the fixing plate to facilitate fixing the connecting plate, and the installation process is fast and convenient. A bump is arranged on the top, and the bump is stuck in the groove and then bonded to realize fast fixing.

The design of hexagonal rod and hexagonal hole/slot matching can also be adopted. The hexagonal rod 12 constitutes the mounting part, which can quickly realize plug-in fixing, but the hexagonal hole needs to have a certain depth, which is not suitable for the deformable screw. The position of the hole will have an impact, therefore, it is necessary to set the hexagonal hole on the upper and lower sides of the hole.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (8)

1. A teaching aid for the mechanical model of the bending bolt group, characterized in that it includes, The fixed plate, the fixed plate includes a fixed plate A and a fixed plate B, and the fixed plate A and the fixed plate B are arranged in parallel; Extrusion deformation plate, extrusion deformation plate includes extrusion deformation plate A, extrusion deformation plate B, extrusion deformation plate A is fixedly connected to fixed plate A, extrusion deformation plate B is fixedly connected to extrusion deformation plate B, extrusion deformation plate A and extrusion deformation plate B have no extrusion contact fit; Connecting plate, the connecting plate includes connecting plate A and connecting plate B, one end of connecting plate A is fixedly installed on the fixed plate A, the other end is sleeved on the connecting shaft, one end of the connecting plate B is fixedly installed on the fixed plate B, and the other end is sleeved on the fixed plate B. On the connecting shaft, the connecting shaft is at least matched with one of the connecting plate A and the connecting plate B; Several rows of deformable screws, the deformable screws pass through the holes on the fixed plate A, the fixed plate B, the extrusion deformation plate A, and the extrusion deformation plate B, and the two ends of the deformable screws are provided with positioning pieces to connect the fixed plate A, The fixed plate B, the extrusion deformation plate A, and the extrusion deformation plate B are fixed in the axial direction of the deformable screw. 2 . The mechanical model teaching aid for bending bolt groups according to claim 1 , wherein the deformable screws in several rows are 4 rows and 2 rows. 3 . 3 . The mechanical model teaching aid for bending bolt groups according to claim 1 , wherein the material of the fixing plate, the extrusion deformation plate and the connecting plate is a transparent material. 4 . 4 . The mechanical model teaching aid for bending bolt groups according to claim 1 , wherein the material of the deformable screw rod is rubber or plastic. 5 . 5 . The mechanical model teaching aid for bending bolt groups according to claim 1 , wherein the positioning member is a nut. 6 . 6 . The mechanical model teaching aid for bending bolt groups according to claim 1 , wherein the connecting shaft is a pin. 7 . 7 . The mechanical model teaching aid for bending bolt groups according to claim 1 , wherein the connecting plate A and the fixing plate A and the connecting plate B and the fixing plate B are glued and fixed. 8 . 8. The bending bolt group mechanics model teaching aid of claim 1, wherein the horizontal plane where the axis of the lowermost row of deformable screws is located is the same plane as the horizontal plane where the axis of the connecting plate is located, or The horizontal plane where the axis of the connecting plate is located is located on the center plane of the matrix formed by several rows of deformable screws.

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