CN219285877U

CN219285877U - Friction coefficient measurement teaching aid convenient for material replacement

Info

Publication number: CN219285877U
Application number: CN202223432992.4U
Authority: CN
Inventors: 韩阳; 王金伙; 葛晓宏; 祁正兵; 孔祥荣; 王荣文; 吴桦炜; 孙绍训
Original assignee: Xiamen University of Technology
Current assignee: Xiamen University of Technology
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-06-30
Anticipated expiration: 2032-12-21

Abstract

The utility model discloses a friction coefficient measuring teaching aid convenient for material replacement, which belongs to the technical field of friction coefficient measurement and comprises a base, wherein the top of the base is fixedly connected with a friction coefficient testing assembly, and two sides of the inner wall of the friction coefficient testing assembly are respectively fixedly connected with a first inclined panel clamping assembly and a second inclined panel clamping assembly; and the side end surface of the friction coefficient testing assembly is fixedly connected with an inclined panel pushing assembly. According to the utility model, the inclined panel in the inclined panel pushing groove can be pushed to move towards the direction of the inclined panel assembling groove by the inclined panel pushing plate, and in the process of moving towards the direction of the inclined panel assembling groove, the inclined panel which is originally clamped and connected between the first inclined panel clamping assembly and the second inclined panel clamping assembly is pushed out, so that the inclined panel assembling groove is internally provided with the inclined panel assembling and disassembling actions at the same time, the convenience of using the teaching aid is improved, and the inclined panel replacing assembly adopts the lever principle, so that the teaching aid has a victory and portable effect.

Description

Friction coefficient measurement teaching aid convenient for material replacement

Technical Field

The utility model belongs to the technical field of friction coefficient measurement, and particularly relates to a friction coefficient measurement teaching aid convenient for material replacement.

Background

The maximum static friction coefficient measuring method is mostly an inclined plane method, a material box filled with raw materials is placed on the inclined plane according to a mechanical principle, if the static friction force is larger than the sliding force, an object stays on the inclined plane, the inclined plane is increased, the material box can just slide downwards, and the calculation is performed according to μs=tan alpha. Wherein, μs is the maximum static friction coefficient; alpha is the maximum static friction angle of the skateboard.

In the prior art, the teaching aid for friction coefficient measurement still has some defects in the using process, because the surface friction coefficient of the raw materials to be tested has larger difference, in order to ensure the measurement accuracy and the efficiency, a proper inclined panel is generally required to be selected, in order to ensure the stability of the inclined panel in the raw material test, a clamp is required to be used, when the inclined panel is replaced, the inclined panel is required to be firstly operated to be disassembled, and then the selected inclined panel is assembled on the clamp, so that the operation is relatively complicated.

Based on the above, the utility model designs a friction coefficient measuring teaching aid convenient for material replacement so as to solve the problems.

Disclosure of Invention

The utility model aims at: in order to solve the problem that the teaching aid for measuring friction coefficient in the prior art still has some defects in the use process, because the surface friction coefficient of the raw material to be tested has larger difference, in order to ensure measurement accuracy and efficiency, a proper inclined plate is generally required to be selected, in order to ensure the stability of the inclined plate in testing the raw material, a clamp is required to be used, when the inclined plate is replaced, the inclined plate is required to be disassembled by operating the clamp, then the selected inclined plate is assembled on the clamp, and the problem that the operation is relatively complicated is solved.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model provides a friction coefficient measurement is with teaching aid convenient to material change, includes the base, the top fixedly connected with friction coefficient test assembly of base, the both sides of friction coefficient test assembly inner wall are fixedly connected with first inclined plane board clamping assembly and second inclined plane board clamping assembly respectively;

the side end face of the friction coefficient testing assembly is fixedly connected with an inclined panel pushing assembly, and the top of the inclined panel pushing assembly is fixedly connected with an inclined panel replacing assembly.

As a further description of the above technical solution:

the friction coefficient testing component comprises a first adapter, the bottom of the first adapter is fixedly connected to one side of the top of the base, the end face of the first adapter is rotationally connected with a bevel board assembly seat, the top of the bevel board assembly seat is provided with a bevel board assembly groove, and one side, far away from the first adapter, of the bottom of the inner side of the bevel board assembly groove is fixedly connected with a side rib plate;

and a supporting seat is embedded at one side of the bottom of the inner side of the inclined panel assembly groove, and the edge of the bottom of the supporting seat is hinged with the bottom of the inner side of the inclined panel assembly groove through a spring hinge.

As a further description of the above technical solution:

the side end face of the first inclined panel clamping assembly is fixedly connected with the end face of the inner side of the inclined panel assembly groove, and the side end face of the second inclined panel clamping assembly is fixedly connected with the side end face of the side rib plate.

As a further description of the above technical solution:

the structure of the first inclined plate clamping assembly is the same as that of the second inclined plate clamping assembly, the second inclined plate clamping assembly comprises an assembling seat, the side end face of the assembling seat is fixedly connected with the side end face of the side rib plate, one face of the assembling seat, which is far away from the side rib plate, is fixedly connected with a supporting spring, and the other end of the supporting spring is fixedly connected with an inclined plate clamping roller.

As a further description of the above technical solution:

the inclined plate pushing assembly comprises an inclined plate pushing seat, the inclined plate pushing seat is fixedly connected to the front side end face of the base, the inclined plate pushing seat is arranged at the top of the inclined plate pushing seat corresponding to the position of the inclined plate assembly groove, an inclined plate pushing plate is slidably connected to the inner side of the inclined plate pushing groove, a sliding block is fixedly connected to the side end face of the inclined plate pushing plate, and the sliding block is slidably connected to a linear sliding groove formed in the inner side end face of the inclined plate assembly groove.

As a further description of the above technical solution:

the inclined panel replacement assembly comprises a second adapter seat, the bottom of the second adapter seat is fixedly connected to the top of the inclined panel pushing plate, the outer side of the second adapter seat is rotatably connected with a telescopic inner shaft, and the other end of the telescopic inner shaft is sleeved with a telescopic outer sleeve;

the telescopic coat is characterized in that a transfer port is formed in the side end face of the telescopic coat, a transfer shaft is connected in the transfer port in a rotating mode, the end portion of the transfer shaft is fixedly connected to the top of the inclined panel pushing seat through a support column, a torsion spring is sleeved on the outer surface of the transfer shaft, one end of the torsion spring is fixedly connected to the outer surface of the transfer shaft, and the other end of the torsion spring is fixedly connected with one side of the support column which is close to the other end of the torsion spring.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

according to the utility model, a selected inclined plate is inserted into the inclined plate pushing groove, then a worker dials one end of the telescopic outer sleeve far away from the telescopic inner shaft by force, the worker rotates through the switching shaft under the action of force, the torsion spring is twisted while the switching shaft rotates, the torsion spring deforms under the action of torsion force, meanwhile, the telescopic outer sleeve also utilizes the telescopic inner shaft to apply force on the second switching seat, in the process, one end of the telescopic inner shaft retracts in the telescopic outer sleeve, the other end of the telescopic inner shaft rotates by taking the second switching seat as the switching center, and then the inclined plate in the inclined plate pushing groove can be pushed to move towards the direction of the inclined plate assembling groove by the inclined plate pushing plate, and in the process of moving towards the direction of the inclined plate assembling groove, the inclined plate which is originally clamped and connected between the first inclined plate clamping assembly and the second inclined plate clamping assembly is pushed out, so that the inclined plate assembling and the disassembling actions of the inclined plate are simultaneously carried out in the inclined plate assembling groove, thereby the convenience of using a teaching aid is improved, and the inclined plate replacing assembly adopts the lever principle.

Drawings

FIG. 1 is a schematic diagram of the whole structure of a friction coefficient measuring teaching aid for facilitating material replacement;

FIG. 2 is a schematic diagram of a friction coefficient measuring teaching aid for material replacement according to another view angle;

FIG. 3 is a schematic diagram of the left and right equiangular shaft side structure of the teaching aid for measuring friction coefficient, which is convenient for material replacement;

fig. 4 is a schematic diagram of an upper and a lower equiangular shaft side structures of a friction coefficient measuring teaching aid for facilitating material replacement according to the present utility model.

Legend description:

1. a base; 2. a coefficient of friction testing assembly; 201. a first adapter; 202. a bevel board assembly seat; 203. a bevel panel assembly groove; 204. a butt joint seat; 205. side rib plates; 3. a first bevel panel clamping assembly; 4. a second bevel panel clamping assembly; 401. assembling a seat; 402. a support spring; 403. the inclined panel clamps the idler wheel; 5. a bevel panel pushing assembly; 501. a bevel board pushing seat; 502. a bevel board pushing groove; 503. a bevel board pushing plate; 504. a linear chute; 6. a bevel board replacement assembly; 601. the second adapter seat; 602. a telescoping inner shaft; 603. a telescopic jacket; 604. a transfer shaft; 605. a support column; 606. and a torsion spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a friction coefficient measurement is with teaching aid convenient to material change, includes base 1, and the top fixedly connected with friction coefficient test assembly 2 of base 1, the both sides of friction coefficient test assembly 2 inner wall are fixedly connected with first inclined panel clamping assembly 3 and second inclined panel clamping assembly 4 respectively;

the side end face of the friction coefficient testing component 2 is fixedly connected with a bevel board pushing component 5, and the top of the bevel board pushing component 5 is fixedly connected with a bevel board replacing component 6.

Specifically, the friction coefficient testing component 2 includes a first adapter 201, the bottom of the first adapter 201 is fixedly connected to one side of the top of the base 1, the end surface of the first adapter 201 is rotatably connected with a bevel board assembly seat 202, the top of the bevel board assembly seat 202 is provided with a bevel board assembly groove 203, and one side of the bottom of the inner side of the bevel board assembly groove 203, which is far away from the first adapter 201, is fixedly connected with a side rib plate 205;

one side of the inboard bottom of inclined plane board assembly groove 203 inlays and is equipped with butt seat 204, butt seat 204 bottom's border department articulates with the inboard bottom of inclined plane board assembly groove 203 through the spring hinge, the side face fixed connection of first inclined plane board clamping assembly 3 is at the inboard terminal surface of inclined plane board assembly groove 203, the side face fixed connection of second inclined plane board clamping assembly 4 is at the side face of side floor 205, the structure of first inclined plane board clamping assembly 3 and second inclined plane board clamping assembly 4 is the same, second inclined plane board clamping assembly 4 includes equipment seat 401, the side face fixed connection of equipment seat 401 is at the side face of side floor 205, the one side fixedly connected with supporting spring 402 of equipment seat 401 keeping away from side floor 205, the other end fixedly connected with inclined plane board clamping roller 403 of supporting spring 402.

Specifically, the inclined panel pushing component 5 includes an inclined panel pushing seat 501, the inclined panel pushing seat 501 is fixedly connected to the front side end surface of the base 1, the inclined panel pushing seat 501 is provided at the position of the top of the inclined panel pushing seat 501 corresponding to the inclined panel assembly groove 203, the inner side of the inclined panel pushing groove 502 is slidably connected with an inclined panel pushing plate 503, the side end surface of the inclined panel pushing plate 503 is fixedly connected with a sliding block, the sliding block is slidably connected in a linear sliding groove 504 provided at the inner side end surface of the inclined panel assembly groove 203, the inclined panel replacing component 6 includes a second adapter 601, the bottom of the second adapter 601 is fixedly connected to the top of the inclined panel pushing plate 503, the outer side of the second adapter 601 is rotatably connected with a telescopic inner shaft 602, and the other end of the telescopic inner shaft 602 is sleeved with a telescopic outer sleeve 603;

the side end face of the telescopic jacket 603 is provided with a switching port, a switching shaft 604 is rotationally connected in the switching port, the end part of the switching shaft 604 is fixedly connected to the top of the inclined panel pushing seat 501 through a supporting column 605, a torsion spring 606 is sleeved on the outer surface of the switching shaft 604, one end of the torsion spring 606 is fixedly connected to the outer surface of the switching shaft 604, and the other end of the torsion spring 606 is fixedly connected to one surface close to the supporting column 605.

The implementation mode specifically comprises the following steps: when changing the inclined plane board of different coefficient of friction according to the article to be tested, the staff stirs the butt seat 204 hard and rotates through the spring hinge, after butt seat 204 is opened, insert the inclined plane board that selects into inclined plane board propelling movement inslot 502, then the staff stirs the one end that flexible overcoat 603 kept away from flexible interior axle 602 hard, the staff rotates through changeover axle 604 under the effect, changeover axle 604 pivoted still can twist torsion spring 606, torsion spring 606 takes place deformation under the effect of torsion force, simultaneously, flexible overcoat 603 still can utilize flexible interior axle 602 to exert oneself on second adapter 601, in this process, the one end of flexible interior axle 602 is the motion of retracting in the inside of flexible overcoat 603, the other end of flexible interior axle 602 is rotated with second adapter 601 as the switching center, and then just can promote the inclined plane board in the inclined plane board propelling movement inslot 502 to the direction of inclined plane board assembly groove 203 through inclined plane board propelling movement board 503.

Working principle, when in use:

when the inclined plate with different friction coefficients needs to be replaced according to the object to be tested, firstly, a worker needs to stir the abutting seat 204 forcefully to rotate through the spring hinge, after the abutting seat 204 is opened, the selected inclined plate is inserted into the inclined plate pushing groove 502, then the worker stir the telescopic jacket 603 forcefully to be away from one end of the telescopic inner shaft 602, the worker rotates through the switching shaft 604 under the action of force, the switching shaft 604 rotates and also twists the torsion spring 606, the torsion spring 606 deforms under the action of torsion force, meanwhile, the telescopic jacket 603 also utilizes the telescopic inner shaft 602 to apply force on the second switching seat 601, in the process, one end of the telescopic inner shaft 602 is retracted in the telescopic jacket 603 to rotate by taking the second switching seat 601 as the switching center, and then the inclined plate in the inclined plate pushing groove 502 can be pushed to move towards the direction of the inclined plate assembling groove 203 through the inclined plate pushing plate 503, and the original clamping connection can be carried out between the inclined plate clamping assembly 3 and the inclined plate clamping assembly 4 under the action of torsion spring 606, and the inclined plate assembly 203 can be conveniently detached by the aid, and the inclined plate assembly 6 can be conveniently assembled by the aid of the principle of using the principle of easy and convenient and easy replacement.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.

Claims

1. The utility model provides a friction coefficient measurement is with teaching aid convenient to material change, includes base (1), its characterized in that, the top fixedly connected with friction coefficient test assembly (2) of base (1), the both sides of friction coefficient test assembly (2) inner wall are fixedly connected with first inclined plane board clamping assembly (3) and second inclined plane board clamping assembly (4) respectively;

the friction coefficient testing device is characterized in that the side end face of the friction coefficient testing assembly (2) is fixedly connected with a bevel board pushing assembly (5), and the top of the bevel board pushing assembly (5) is fixedly connected with a bevel board replacing assembly (6).

2. The teaching aid for measuring friction coefficient convenient for material replacement according to claim 1, wherein the friction coefficient testing component (2) comprises a first adapter seat (201), the bottom of the first adapter seat (201) is fixedly connected to one side of the top of the base seat (1), an inclined panel assembly seat (202) is rotatably connected to the end face of the first adapter seat (201), an inclined panel assembly groove (203) is formed in the top of the inclined panel assembly seat (202), and a side rib plate (205) is fixedly connected to one side, far away from the first adapter seat (201), of the inner bottom of the inclined panel assembly groove (203);

one side of the inner side bottom of the inclined panel assembly groove (203) is embedded with a supporting seat (204), and the edge of the bottom of the supporting seat (204) is hinged with the bottom of the inner side of the inclined panel assembly groove (203) through a spring hinge.

3. The teaching aid for measuring friction coefficient for facilitating material replacement according to claim 2, wherein the side end face of the first inclined plate clamping assembly (3) is fixedly connected to the end face inside the inclined plate assembly groove (203), and the side end face of the second inclined plate clamping assembly (4) is fixedly connected to the side end face of the side rib plate (205).

4. The teaching aid for friction coefficient measurement convenient for material replacement according to claim 3, wherein the first inclined plate clamping assembly (3) and the second inclined plate clamping assembly (4) are identical in structure, the second inclined plate clamping assembly (4) comprises an assembly seat (401), the side end face of the assembly seat (401) is fixedly connected with the side end face of the side rib plate (205), one face, away from the side rib plate (205), of the assembly seat (401) is fixedly connected with a supporting spring (402), and the other end of the supporting spring (402) is fixedly connected with an inclined plate clamping roller (403).

5. The teaching aid for friction coefficient measurement convenient for material replacement according to claim 4, wherein the inclined plate pushing assembly (5) comprises an inclined plate pushing seat (501), the inclined plate pushing seat (501) is fixedly connected to the front side end face of the base (1), the inclined plate pushing groove (502) is formed in the position, corresponding to the inclined plate assembling groove (203), of the top of the inclined plate pushing seat (501), an inclined plate pushing plate (503) is connected to the inner side of the inclined plate pushing groove (502) in a sliding mode, and a sliding block is fixedly connected to the side end face of the inclined plate pushing plate (503) and is in sliding connection with a linear sliding groove (504) formed in the inner side end face of the inclined plate assembling groove (203).

6. The teaching aid for measuring friction coefficient for facilitating material replacement according to claim 1, wherein the inclined panel replacement assembly (6) comprises a second adapter seat (601), the bottom of the second adapter seat (601) is fixedly connected to the top of an inclined panel pushing plate (503), a telescopic inner shaft (602) is rotatably connected to the outer side of the second adapter seat (601), and a telescopic outer sleeve (603) is sleeved at the other end of the telescopic inner shaft (602);

the telescopic sleeve is characterized in that a rotating interface is formed in the side end face of the telescopic sleeve (603), a rotating shaft (604) is connected in the rotating interface, the end portion of the rotating shaft (604) is fixedly connected to the top of the inclined panel pushing seat (501) through a supporting column (605), a torsion spring (606) is sleeved on the outer surface of the rotating shaft (604), one end of the torsion spring (606) is fixedly connected to the outer surface of the rotating shaft (604), and the other end of the torsion spring (606) is fixedly connected to one surface close to the supporting column (605).