Hairbrush friction factor detection device

Abstract

The utility model relates to a hairbrush friction factor detection device, comprising a measuring rotary table which is provided with a fixing assembly, the fixing assembly is used for fixing a plurality of hairbrushes so that the hairbrush surfaces of the plurality of hairbrushes are located on the same plane, and the measuring rotary table is arranged to be capable of rotating to any inclination angle; the measuring standard part is made of a flexible or rigid material, the measuring standard part is provided with a measuring plane, the measuring plane covers the brush surface, and the brush surface supports the measuring standard part; the sensor is arranged on the measuring rotary table, and the sensor is used for detecting the relative position of the measuring rotary table and the measuring standard part; according to the utility model, the measuring turntable and the measuring standard component are arranged, and the measuring standard component is driven by gravity to slide relative to the brush to realize friction factor detection, so that the influence of environmental factors on the measuring result is reduced, and the detection precision of the friction factor of the brush is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of friction factor measurement, in particular to a detection device for the friction factor of a brush. Background Art

[0002] The dynamic friction factor (or dynamic friction coefficient) is the ratio between the frictional force and the normal pressure when two contacting objects move relative to each other. For products such as brushes and finished fabrics, different dynamic friction factors result in different surface roughnesses, and there are also differences in the daily cleaning effect or comfort. Therefore, different users and usage scenarios have different requirements for the friction factors of brushes and finished fabrics. Friction factor detection is an important quality control process, which is beneficial to product quality control and performance evaluation. Most of the existing friction factor detection devices detect based on the principle of horizontally pulling the object to be measured to slide relative to the contacting object by a dynamometer. The dynamometer is greatly affected by environmental factors and the operation is complex, resulting in inaccurate detection accuracy. Summary of the Utility Model

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the problem that the detection of the friction coefficient of the brush in the prior art is not accurate enough, and further provide a detection device for the friction factor of the brush, which effectively improves the detection accuracy of the friction factor of the brush.

[0004] To solve the above technical problem, the utility model provides a detection device for the friction factor of a brush, including:

[0005] A measuring turntable, which is provided with a fixing component for fixing a plurality of brushes so that the brush surfaces of the plurality of brushes are located on the same plane, and the measuring turntable is set to be able to rotate to any inclination angle;

[0006] A measuring standard part, which is made of flexible or rigid material, and the measuring standard part is provided with a measuring plane covering the brush surface, and the brush surface supports the measuring standard part;

[0007] A sensor, which is arranged on the measuring turntable, and the sensor is used to detect the relative position between the measuring turntable and the measuring standard part.

[0008] In an embodiment of the utility model, it further includes a base and two support plates arranged on the base, and both ends of the measuring turntable are rotatably connected to the two support plates.

[0009] In an embodiment of the utility model, it further includes a driver arranged on the support plate, and the driver drives the measuring turntable to rotate.

[0010] In an embodiment of the utility model, the measuring standard part is set to be in a plate-like or block-like structure.

[0011] In an embodiment of the present utility model, the fixing assembly includes a plurality of sliding rails arranged in parallel, the plurality of sliding rails are parallel to the measuring turntable, and the brush is slidably connected to the sliding rails.

[0012] In an embodiment of the present utility model, the length direction of the sliding rail is parallel or perpendicular to the rotation axis of the measuring turntable.

[0013] In an embodiment of the present utility model, the fixing assembly further includes a plurality of sliders, the two ends of the sliding rail are provided with the sliders, and the sliders are slidably connected to the sliding rail and fixed by screws.

[0014] In an embodiment of the present utility model, the fixing assembly further includes a plurality of mounting parts, the mounting parts can be detachably connected to the measuring turntable, and the sliding rail is located on the mounting parts.

[0015] In an embodiment of the present utility model, it further includes a plurality of sensor mounting seats distributed at the four corners of the measuring turntable, the sensor mounting seats are arranged in an "L" shape, and a plurality of strip holes are provided on the sensor mounting seats, and the sensor mounting seats are mounted on the measuring turntable through the strip holes.

[0016] In an embodiment of the present utility model, the mounting part is connected to the slider by screws.

[0017] In an embodiment of the present utility model, it further includes a control module arranged on the base, the control module includes a control unit, a control panel and a display, and the control panel includes a plurality of buttons.

[0018] The above technical solution of the present utility model has the following beneficial effects compared with the prior art:

[0019] For the brush friction coefficient detection device of the present utility model, by setting a measuring turntable and a measuring standard part, placing the measuring standard part on the brush, and using gravity to drive the measuring standard part to slide relative to the brush, the interference of environmental factors on the detection accuracy is reduced; the measuring standard part is made of a flexible material to fully simulate the use environment of the brush and improve the detection accuracy; the moment of relative sliding between the measuring turntable and the measuring standard part is accurately detected by a sensor, and the maximum static friction force of the brush surface is accurately obtained, so as to accurately calculate the dynamic friction coefficient of the brush surface. Description of the Drawings

[0020] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model in conjunction with the drawings, where

[0021] Figure 1 This is a schematic structural diagram of a brush friction coefficient detection device in a preferred embodiment of the present utility model.

[0022] Figure 2 For Figure 1 The installation split body of the brush friction coefficient detection device shown and the structural schematic diagram of the slider.

[0023] Explanation of the reference numerals in the specification drawings: 1, base; 12, support plate; 13, button; 14, display; 2, measuring turntable; 3, driver; 4, measuring standard part; 41, measuring plane; 5, slider; 51, slide rail; 52, installation split body; 6, sensor mounting seat. Specific embodiments

[0024] The following further describes the present utility model in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited are not intended to limit the present utility model.

[0025] Embodiment

[0026] Referring to Figure 1 As shown, in an embodiment of the present utility model, a brush friction coefficient detection device includes:

[0027] A measuring turntable 2, on the surface of which a fixing component is provided, and the fixing component is used to fix a plurality of brushes to be detected on the measuring turntable 2, so that the brush surfaces of each brush are located on the same plane and the edges of adjacent brush surfaces are tightly and evenly connected. The measuring turntable 2 is set to be able to rotate precisely and slowly at any inclination angle, so that the brush surface can also be inclined to any angle;

[0028] A measuring standard part 4, which is preferably made of a flexible material and can be made of a rigid material in other embodiments. The measuring standard part 4 is provided with a measuring plane 41, and the measuring plane 41 covers the brush surface, and the brush surface supports the measuring standard part 4. The measuring standard part 4 is a standardized sample used to generate a relative sliding friction force with the brush surface and ensure the consistency and comparability of the test results. It can be set as, for example, an organic glass plate, an aluminum plate, a stainless steel plate or a carpet, etc. When the measuring turntable 2 rotates to a certain angle, after the gravitational separation of the measuring standard part 4 along the measuring turntable 2 downward is greater than the maximum static friction force between the brush surfaces, the measuring standard part 4 starts to slide relative to the brush surface;

[0029] A plurality of sensors are arranged on the measuring turntable 2. The sensors measure to detect the relative position between the measuring turntable 2 and the measuring standard part 4, as well as the tilt angle of the measuring turntable 2. At the moment when it is detected that the measuring standard part 4 slides relative to the brush surface, the sensor reads the tilt angle of the measuring turntable 2 at this moment and transmits the tilt angle to the control unit. The control unit calculates the sliding friction coefficient of the brush surface according to the tilt angle. Among them, the sliding friction coefficient of the brush surface is calculated by the formula F = N * μ, where N is the normal pressure of the brush surface and F is the maximum static friction force of the brush surface. The mass of the measuring standard part 4 is a known number, and then N and F can be calculated according to the tilt angle of the measuring turntable 2, and further the sliding friction coefficient μ of the brush surface can be calculated.

[0030] In an embodiment of the present invention, referring to Figure 1 As shown, in order to facilitate the movement of the entire detection device and also provide a stable and easily detachable and maintainable support structure for the measuring turntable, it includes a base 1 and two support plates 12 arranged on the base 1. Both ends of the measuring turntable 2 are rotatably connected to the two support plates 12.

[0031] In an embodiment of the present invention, referring to Figure 1 As shown, in order to accurately control the rotation speed and angle of the measuring turntable 2 and improve the automation of the device, it further includes a driver 3 arranged on the support plate 12. The driver 3 is used to drive the measuring turntable 2 to rotate to various angles. The driver 3 is preferably a servo motor, and the servo motor is electrically connected to the encoder of the control unit.

[0032] In an embodiment of the present invention, referring to Figure 1 As shown, in order to make the gravity of the measuring standard part 4 act on the brush surface relatively evenly, the measuring standard part 4 is set as a plate-shaped or square-shaped structure.

[0033] In an embodiment of the present invention, referring to Figure 1 and 2 As shown, the fixing component includes 10 slide rails 51 arranged in parallel on the measuring turntable 2. The 10 slide rails 51 are arranged parallel to the measuring turntable 2 by screws. The brush is slidably connected to the slide rails 51 through the slide seat at its bottom. On one slide rail 51, multiple brushes are closely abutted before and after sliding, and the brushes on adjacent slide rails 51 are closely arranged left and right. The function of the slide rails 51 is to quickly disassemble and install the brushes and ensure that all brush surfaces are located on the same smooth plane to ensure the accuracy of the detection results.

[0034] In an embodiment of the present invention, referring to Figure 1 and 2As shown, the length direction of the slide rail 51 is arranged parallel to the rotation axis of the measuring turntable 2. In other embodiments, the length direction of the slide rail 51 can be arranged perpendicular to the rotation axis of the measuring turntable 2.

[0035] In an embodiment of the present utility model, referring to Figure 1 and 2 As shown, in order to fix all the brushes on one slide rail 51, the fixing assembly further includes a plurality of sliders 55. The sliders 55 are provided at both ends of the slide rail 51. After the brushes are closely abutted front and back, the two sliders 55 are slidably connected to the slide rail 51 and fixed by screws.

[0036] In an embodiment of the present utility model, referring to Figure 1 and 2 As shown, in order to further improve the installation efficiency of the brushes and quickly adjust the number of brushes, the fixing assembly further includes a plurality of mounting sub - bodies 52. The mounting sub - bodies 52 can be detachably connected to the measuring turntable 2 by screws. The slide rail 51 is located on the mounting sub - bodies 52. In this way, multiple brushes can be integrally installed on the measuring turntable 2 or integrally removed from the measuring turntable 2. In this embodiment, there are 10 mounting sub - bodies 52.

[0037] In an embodiment of the present utility model, referring to Figure 1 As shown, it further includes four sensor mounting seats 6 distributed at the four corners of the measuring turntable 2. The sensor mounting seats 6 are arranged in an "L" - shaped structure so that sensors can be set at different heights on the sensor mounting seats 6. And a plurality of strip - shaped holes are provided on the sensor mounting seats 6. The sensor mounting seats 6 are mounted on the measuring turntable 2 through the strip - shaped holes. The function of the strip - shaped holes is to facilitate fine - tuning the position of the sensor mounting seats 6.

[0038] In an embodiment of the present utility model, referring to Figure 1 As shown, the mounting sub - body 52 is connected to the slider 55 through screw holes at its bottom by screws.

[0039] In an embodiment of the present utility model, referring to Figure 1 As shown, in order to control the detection device, it further includes a control module arranged on the base 1. The control module includes a control unit, a control panel, and a display 14. The control unit is electrically connected to the sensor. The control panel includes a plurality of buttons 12, and the opening and closing of the servo motor are controlled through the buttons.

[0040] The working principle of the brush friction coefficient detection device of the present utility model is:

[0041] Fix multiple brushes to be detected on the mounting split body 52 in advance. Initially, the measuring turntable 2 is in a horizontal state. Fix the multiple mounting split bodies 52 on the measuring turntable 2 so that all the brushes form a smooth brush surface. Then place the measuring standard part 4 on the brush surface, press the start button 13, and the servo motor drives the measuring turntable 2 to rotate slowly. When the measuring standard part 4 starts to tilt to a certain extent, when the gravitational component of the measuring standard part 4 along the surface of the measuring turntable 2 downward is greater than the maximum static friction force between the measuring standard part 4 and the brush surface, the measuring standard part 4 starts to slide relatively. The sensor reads the tilt angle of the measuring turntable 2 at the moment when the measuring standard part 4 slides, the control unit obtains the angle of the measuring turntable 2, calculates the sliding friction coefficient of the brush surface according to the weight of the measuring standard part 4 and the tilt angle, and outputs it to the display 14.

[0042] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A brush friction factor detection device, characterized in that: include: A measuring turntable, which is provided with a fixing assembly, wherein the fixing assembly is used to fix a plurality of brushes so that the brush surfaces of the plurality of brushes are located on the same plane, and the measuring turntable is configured to be able to rotate to any inclination angle; A measurement standard part, which is made of a flexible or rigid material, and is provided with a measurement plane, which covers the brush surface, and the brush surface supports the measurement standard part; A sensor is arranged on the measuring turntable, and the sensor is used to detect the relative position of the measuring turntable and the measuring standard part and the tilt angle of the measuring turntable.

2. A brush friction factor detection device according to claim 1, characterized in that: It also includes a base and two support plates arranged on the base, and the two ends of the measuring turntable are rotatably connected to the two support plates.

3. A brush friction factor detection device according to claim 2, characterized in that: It also includes a driver arranged on the supporting plate, and the driver drives the measuring turntable to rotate.

4. A brush friction factor detection device according to claim 1, characterized in that: The measurement standard is configured as a plate-shaped or block-shaped structure.

5. A brush friction factor detection device according to claim 1, characterized in that: The fixing assembly comprises a plurality of slide rails arranged in parallel, the plurality of slide rails are arranged parallel to the measuring turntable, and the brush is slidably connected to the slide rails.

6. A brush friction factor detection device according to claim 5, characterized in that: The length direction of the slide rail is parallel to or perpendicular to the rotation axis of the measuring turntable.

7. A brush friction factor detection device according to claim 5, characterized in that: The fixing assembly further comprises a plurality of sliding blocks, both ends of the sliding rail are provided with the sliding blocks, and the sliding blocks are slidably connected to the sliding rail and fixed by screws.

8. A brush friction factor detection device according to claim 7, characterized in that: The fixing assembly further comprises a plurality of mounting split bodies, wherein the mounting split bodies can be detachably connected to the measuring turntable, and the slide rail is located on the mounting split bodies.

9. A brush friction factor detection device according to claim 8, characterized in that: The mounting split body is connected to the sliding block via screws.

10. A brush friction factor detection device according to claim 1, characterized in that: It also includes a plurality of sensor mounting seats distributed on the four corners of the measuring turntable, the sensor mounting seats are arranged in an "L"-shaped structure, and a plurality of strip holes are provided on the sensor mounting seats, and the sensor mounting seats are installed on the measuring turntable through the strip holes.

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