CN218973407U

CN218973407U - Surface roughness testing device for rupture membrane

Info

Publication number: CN218973407U
Application number: CN202223299737.7U
Authority: CN
Inventors: 华路
Original assignee: Heyuan Xuanlang Photoelectric Technology Co ltd
Current assignee: Heyuan Xuanlang Photoelectric Technology Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-05-05
Anticipated expiration: 2032-12-09

Abstract

The utility model discloses a surface roughness testing device for an explosion-proof membrane, which comprises a workbench and a testing platform arranged on the outer wall of the top of the workbench, wherein a storage table is arranged on the outer wall of the top of the workbench, weights are arranged on the outer wall of the top of the storage table, the top surface of the testing platform is of an inclined structure, and a mounting groove is formed in the bottom of the inclined structure of the testing platform. According to the surface roughness testing device for the rupture membrane, provided by the utility model, a plurality of spare friction belts can be arranged for selection according to the test pieces to be tested with different roughness, the testing range is wider, and the test pieces to be tested with various roughness can be ensured to be capable of measuring accurate data on the testing platform.

Description

Surface roughness testing device for rupture membrane

Technical Field

The utility model relates to the technical field of explosion-proof membrane processing, in particular to a surface roughness testing device for an explosion-proof membrane.

Background

At present, most of glass used for screen display is fragile and dangerous after being crushed, an explosion-proof film needs to be attached to the upper surface of a screen cover plate, and in the explosion-proof film finished product test, the roughness of the surface of the explosion-proof film needs to be tested.

When the surface roughness of the rupture disc is tested, only the friction force generated by the rupture disc during sliding is required to be tested, and the sliding friction force is only related to the surface pressure, the material and the surface roughness, so that the roughness of the surface of the rupture disc can be tested only by observing the sliding distance of the rupture disc when the surface pressure and the material are unchanged.

However, the conventional surface roughness testing device for the rupture disc cannot adjust the roughness of the testing platform according to the roughness of the surface of the rupture disc, so that the rupture disc can possibly slide out too far to stay in the testing process, and the testing is inaccurate; for example: when the friction coefficient of the test platform is lower, the friction coefficient of the surface of the explosion-proof membrane is also lower, and the explosion-proof membrane possibly slides out of the test platform to a too far distance to stay, so that the obtained distance is inaccurate, and the measured roughness is also inaccurate.

Disclosure of Invention

The utility model discloses a surface roughness testing device for an explosion-proof membrane, and aims to solve the technical problems that the traditional surface roughness testing device for the explosion-proof membrane cannot adjust the roughness of a testing platform according to the roughness of the surface of the explosion-proof membrane, so that the explosion-proof membrane can possibly slide out too far to stay in the testing process, and the testing is inaccurate.

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

the utility model provides a surface roughness testing arrangement for rupture membrane, includes the workstation and set up in the test platform of workstation top outer wall, the top outer wall of workstation is provided with puts the thing platform, the top outer wall of putting the thing platform is provided with the weight, test platform's top surface sets up to the slope structure, open the bottom of test platform slope structure has the mounting groove, the inner wall of mounting groove is provided with a plurality of reserve friction strips and first friction strip, first friction strip is located the top, the friction coefficient that first friction strip brought a plurality of reserve friction strip increases in proper order, test platform's top outer wall is opened there is the test tank, the inner wall of test tank is provided with the scale groove, test piece that awaits measuring has been placed to the inner wall of test tank, one side outer wall of test platform is provided with fixed establishment.

The test piece that awaits measuring of different roughness can be selected for use through setting up a plurality of reserve friction area, and test range is wider, can guarantee that the test piece that awaits measuring of multiple roughness all can measure accurate data on test platform.

In a preferred scheme, the test piece to be tested comprises an explosion-proof membrane body and a placing frame, sucking discs are arranged at four corners of the outer wall of the bottom of the placing frame, the sucking discs are adsorbed on the upper surface of the explosion-proof membrane body, weights are placed on the inner wall of the placing frame, the section shapes of the weights are consistent with the section shapes of the inner wall of the placing frame, and the heights of the weights are different.

The cross sections of the bottoms of the weights are all set to be the same, and then the height of the weights is changed, so that the weights can conveniently apply uniform pressure to the explosion-proof membrane body.

From the above, a surface roughness testing arrangement for rupture membrane, including the workstation with set up in the test platform of workstation top outer wall, the top outer wall of workstation is provided with puts the thing platform, the top outer wall of putting the thing platform is provided with the weight, test platform's top surface sets up to the slope structure, open the bottom of test platform slope structure has the mounting groove, the inner wall of mounting groove is provided with a plurality of reserve friction strips and first friction strip, first friction strip is located the top, the coefficient of friction of a plurality of reserve friction strip increases in proper order for the first friction strip, test platform's top outer wall is opened there is the test slot, the inner wall of test slot is provided with the scale groove, the test piece that awaits measuring has been placed to the inner wall of test slot, one side outer wall of test platform is provided with fixed establishment. According to the surface roughness testing device for the rupture disc, provided by the utility model, a plurality of spare friction belts can be arranged for selection according to the test pieces to be tested with different roughness, the testing range is wider, and the test pieces to be tested with various roughness can be ensured to measure accurate data on the testing platform.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a surface roughness testing device for an explosion-proof membrane according to the present utility model.

Fig. 2 is a perspective view of a testing platform of the surface roughness testing device for an explosion-proof membrane.

Fig. 3 is an explosion diagram of a test piece to be tested of the surface roughness testing device for an explosion-proof membrane.

In the accompanying drawings: 1. a work table; 2. a storage table; 3. a weight; 4. a test platform; 5. placing a frame; 6. a first friction belt; 7. a scale groove; 8. a spare friction belt; 9. a limiting block; 10. a limit groove; 11. a limit rod; 12. a suction cup; 13. an explosion-proof membrane body.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.

The surface roughness testing device for the rupture disc disclosed by the utility model is mainly applied to the traditional surface roughness testing device for the rupture disc, and the roughness of a testing platform cannot be adjusted according to the roughness of the surface of the rupture disc, so that the rupture disc can possibly slide out too far to stay in the testing process, and further, the inaccurate testing scene is caused.

Referring to fig. 1 and 2, a surface roughness testing device for an explosion-proof membrane comprises a workbench 1 and a testing platform 4 arranged on the outer wall of the top of the workbench 1, wherein a storage table 2 is arranged on the outer wall of the top of the workbench 1, weights 3 are arranged on the outer wall of the top of the storage table 2, the top surface of the testing platform 4 is of an inclined structure, a mounting groove is formed in the bottom of the inclined structure of the testing platform 4, a plurality of standby friction belts 8 and first friction belts 6 are arranged on the inner wall of the mounting groove, the first friction belts 6 are positioned at the uppermost part, the friction coefficients of the first friction belts 6 to the plurality of standby friction belts 8 are sequentially increased, a testing groove is formed in the outer wall of the top of the testing platform 4, a scale groove 7 is formed in the inner wall of the testing groove, a test piece to be tested is placed in the inner wall of the testing groove, and a fixing mechanism is arranged on the outer wall of one side of the testing platform 4; the bottom of the test platform 4 is provided with a plurality of standby friction belts 8, different sliding surfaces can be regulated according to tests under different conditions, if the surface of a relatively smooth test piece to be tested is met, the standby friction belt 8 with relatively large friction coefficient can be selected, and when the surface of the relatively rough test piece to be tested is required to be tested, the standby friction belt 8 with relatively low friction coefficient can be selected, the test method is that the test piece to be tested is placed in a test groove, then the sliding distance of the test piece to be tested in the test groove is observed until the test piece to be tested is completely stopped, and then the roughness index of the surface of the test piece to be tested is obtained by recording the sliding distance of the test piece to be tested and multiplying the friction coefficient of the selected first friction belt 6 or standby friction belt 8.

Wherein the inclination angle of the top inclination structure of the test platform 4 is 30-45 degrees; if the inclination degree of the test platform 4 is large, the sliding speed of the test piece to be tested is too high, so that the length of the test platform 4 is shortened by phase change, the test difficulty is increased, and if the inclination degree is too small, the sliding distance of the test piece to be tested is possibly caused to be too small and the measurement is not accurate enough.

Specifically, the first friction belt 6 and the plurality of spare friction belts 8 are matched with the inner wall of the test groove.

Referring to fig. 1 and 3, in a preferred embodiment, a test piece to be tested comprises an explosion-proof membrane body 13 and a placement frame 5, suction cups 12 are arranged at four corners of the outer wall of the bottom of the placement frame 5, the suction cups 12 are adsorbed on the upper surface of the explosion-proof membrane body 13, weights 3 are placed on the inner wall of the placement frame 5, the cross-sectional shape of the weights 3 is consistent with the cross-sectional shape of the inner wall of the placement frame 5, and the heights of different weights 3 are different; because the surface of the explosion-proof film is generally smooth, and the sliding distance is far, a placing frame 5 is connected to the upper surface of the explosion-proof film body 13 through a sucker 12, then weights 3 are placed in the placing frame 5, the pressure on the explosion-proof film body 13 is increased, the sliding friction force of the explosion-proof film body 13 is increased, the sliding distance of the explosion-proof film body 13 on the test platform 4 is properly reduced, the test range can be enlarged by setting weights 3 with different weights, and the roughness index is the original index divided by the mass of the weights 3.

Referring to fig. 1 and 2, in a preferred embodiment, the fixing mechanism includes a limiting block 9 disposed on two sides of an outer wall of one side of the test platform 4, a limiting groove 10 is disposed at the bottom of the limiting block 9, a limiting rod 11 is disposed at one end of the first friction belt 6 and one end of the standby friction belt 8, and an outer wall of the limiting rod 11 is adapted to an inner wall of the limiting groove 10; when the spare friction belt 8 is replaced, the first friction belt 6 with smaller friction coefficient can be placed in the limit groove 10 through the limit rod 11 in sequence, the first friction belt 6 is fit into the test groove to serve as a new reference surface, then the spare friction belt 8 with larger friction coefficient is placed in the test groove to form a new surface of the test platform 4, and the limit rod 11 is placed in the limit groove 10 to limit and fix the test platform.

Working principle: when the test platform is used, the bottom of the test platform 4 is provided with a plurality of standby friction belts 8, different sliding surfaces can be regulated according to tests of different conditions, if the surface of a relatively smooth test piece to be tested is met, the standby friction belt 8 with a relatively large friction coefficient can be selected, and when the surface of the relatively rough test piece to be tested is required to be tested, the standby friction belt 8 with a relatively low friction coefficient can be selected.

The above description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto. The substitutions may be partial structures, devices, or method steps, or may be a complete solution. The technical proposal and the utility model concept are equivalent to or changed in accordance with the utility model, and the utility model is covered in the protection scope of the utility model.

Claims

1. The utility model provides a surface roughness testing arrangement for rupture membrane, includes workstation (1) and set up in test platform (4) of workstation (1) top outer wall, the top outer wall of workstation (1) is provided with puts thing platform (2), the top outer wall of putting thing platform (2) is provided with weight (3), its characterized in that, the top surface of test platform (4) sets up to the slope structure, open the bottom of test platform (4) slope structure has the mounting groove, the inner wall of mounting groove is provided with a plurality of reserve friction strips (8) and first friction strip (6), first friction strip (6) are located the top, the coefficient of friction of first friction strip (6) to a plurality of reserve friction strip (8) increases in proper order, the top outer wall of test platform (4) is opened there is the test groove, the inner wall of test groove is provided with scale groove (7), the test piece that awaits measuring has been placed to the inner wall of test platform (4), one side outer wall of test platform (4) is provided with fixed establishment.

2. A surface roughness test device for explosion-proof membrane according to claim 1, characterized in that the inclination angle of the top inclination structure of the test platform (4) is 30 ° -45 °.

3. A surface roughness testing device for explosion-proof membrane according to claim 2, characterized in that the first friction belt (6) and the plurality of spare friction belts (8) are adapted to the inner wall of the test groove.

4. The surface roughness testing device for the rupture disc according to claim 1, wherein the test piece to be tested comprises a rupture disc body (13) and a placing frame (5), suction cups (12) are arranged at four corners of the outer wall of the bottom of the placing frame (5), the suction cups (12) are adsorbed on the upper surface of the rupture disc body (13), and the weights (3) are placed on the inner wall of the placing frame (5).

5. The surface roughness test device for explosion proof membrane according to claim 4, wherein the cross section shape of the weight (3) is in accordance with the cross section shape of the inner wall of the placing frame (5).

6. The surface roughness test device for rupture discs as claimed in claim 5, wherein the heights of the weights (3) are different.

7. The surface roughness testing device for an explosion-proof membrane according to claim 1, wherein the fixing mechanism comprises limiting blocks (9) arranged on two sides of the outer wall of one side of the testing platform (4), and limiting grooves (10) are formed in the bottoms of the limiting blocks (9).

8. The surface roughness testing device for explosion-proof membrane according to claim 7, wherein the first friction belt (6) and one end of the spare friction belt (8) are both provided with a limit rod (11), and the outer wall of the limit rod (11) is matched with the inner wall of the limit groove (10).