Carbon brush holder electrical property detection mechanism
By designing an electrical detection mechanism for the carbon brush holder and using a cylinder to drive the connecting rod to achieve automatic clamping and release, the friction environment between the carbon brush and the rotor is simulated, which solves the problem that multimeter detection cannot simulate the actual working environment and improves detection efficiency and reliability.
Patent Information
- Application Number
- CN202510963292.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-14
- Publication Date
- 2025-09-26
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, when a multimeter is used to detect the carbon brush holder, it is impossible to simulate the actual working environment, resulting in an inability to accurately obtain the electrical data of the carbon brush holder during actual operation.
An electrical detection mechanism for a carbon brush holder was designed. A cylinder-driven connecting rod was used to rotate the L-shaped rod to achieve automatic clamping and release of the test sample. The friction environment between the carbon brush and the rotor was simulated by a simulation mechanism, integrating clamping, testing and unloading functions to reduce manual intervention.
The electrical testing of the carbon brush holder is realized in a simulated actual working environment, which improves the testing efficiency and reliability, automates the testing process and reduces manual intervention.
Smart Images
Figure CN120703494A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of detection mechanisms, in particular to an electrical property detection mechanism for a carbon brush holder. Background Art
[0002] The carbon brush holder is a key mechanical support component in a motor or generator. Its core function is to ensure that the carbon brushes maintain close contact with the rotating commutator or slip ring by fixing the position of the carbon brushes and applying stable spring pressure, thereby achieving stable current conduction between the fixed and rotating bodies.
[0003] The core function of electrical testing of carbon brush holders is to ensure the reliability of their insulation performance or grounding function, thereby ensuring the safe operation of the motor, preventing short-circuit accidents and maintaining the purity of the current transmission path. For large generator grounding carbon brush holders used to eliminate shaft current, the on-resistance between them and the grounding circuit is tested to ensure that the shaft voltage is effectively introduced into the ground, preventing the shaft current from breaking through the bearing oil film and causing electrical corrosion damage. At the same time, it provides a low-resistance path for rotor grounding protection, facilitating the monitoring of the winding insulation status.
[0004] In the prior art, when inspecting the produced carbon brush holder, the inspector usually uses a multimeter to inspect the processed carbon brush holder to ensure that its grounding function is intact. However, in actual use, the carbon brush holder is installed inside the motor, and the motor will generate vibration during operation. Therefore, using a multimeter to inspect the carbon brush holder cannot simulate the actual working environment, and therefore cannot accurately obtain the data of the carbon brush holder during actual operation. Summary of the Invention
[0005] Based on this, the purpose of the present invention is to provide a carbon brush holder electrical detection mechanism to solve the technical problem that using a multimeter to detect the carbon brush holder cannot simulate the actual working environment and cannot accurately obtain the data of the carbon brush holder during actual operation.
[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a carbon brush holder electrical detection mechanism, comprising a body, a simulation mechanism is provided inside the body, a fixed plate is fixedly connected to one side of the body, a clamping mechanism is provided inside the body, a detection mechanism is provided on one side of the fixed plate, the clamping mechanism comprises a cylinder, a slider, a connecting rod and a fixed rod, wherein the cylinder is fixedly installed on the body, the cylinder output end is fixedly connected to the slider, one side of the slider is rotatably connected to the connecting rod, an L-shaped rod is installed on one side of the connecting rod, and multiple groups of fixed rods are fixedly connected to one side of the fixed plate, the L-shaped rod comprises a short rod, a long rod and a fixed shaft, wherein the short rod and the long rod are integrated and the short rod and the long rod are ninety degrees apart, the short rod and the connecting rod are rotatably connected, the fixed shaft is fixedly installed at the angle between the short rod and the long rod, and the L-shaped rod is movably connected to the fixed plate through the fixed shaft and the fixed rod.
[0007] By adopting the above technical solution, the present invention utilizes the cylinder to drive the connecting rod to drive the L-shaped rod to rotate, thereby realizing automatic clamping and release of the test sample, and during the clamping process, the detection point on the test sample is tightly fitted with the detection contact, and the carbon brush is in continuous contact with the rotating roller in the simulation mechanism. The operation of the simulation mechanism can simulate the friction environment between the carbon brush and the rotor during actual operation, thereby obtaining electrical data that is closer to the actual operation. After the detection is completed, the cylinder reverses to tilt the L-shaped rod, and the test sample will automatically slide and fall into an external collection device to complete unmanned unloading. The entire process, by integrating clamping, testing, and unloading functions, greatly reduces manual intervention, improves detection efficiency and reliability, and solves the technical problem that using a multimeter to detect the carbon brush holder cannot simulate the actual working environment and cannot accurately obtain the data of the carbon brush holder during actual operation.
[0008] Furthermore, the simulation mechanism includes a motor, a rotating shaft and a rotating roller, wherein the motor is fixedly installed inside the machine body, the output end of the motor is fixedly connected to the rotating shaft, and the end of the rotating shaft is fixedly connected to the rotating roller.
[0009] By adopting the above technical solution, the motor will be powered to drive the rotating shaft to rotate, and the rotating roller will also rotate accordingly. At this time, since the carbon brush is tightly fitted with the rotating roller, when the rotating roller rotates, it can simulate the working environment of the carbon brush holder in actual work.
[0010] Furthermore, the detection mechanism includes a telescopic rod, a detection contact and a pressure block, wherein the two groups of telescopic rods are movably connected to the fixed plate, the detection contacts are fixedly installed at the end of the telescopic rod, and one side of one group of detection contacts is fixedly connected to the pressure block. The detection mechanism also includes a spring, wherein the spring is installed at one end of the telescopic rod, and the other end of the spring is fixedly connected to the body through a support frame, and the telescopic rod is elastically connected to the body through the spring.
[0011] By adopting the above technical solution, the test sample will also squeeze one of the sets of pressure blocks installed on one side of the test contacts when moving. After the test sample is clamped, the first test point and the second test point will fit tightly with the test contacts. After the simulation mechanism is started, the user starts the control system inside the body, and the test sample can be tested for electrical properties such as grounding and insulation through the test contacts.
[0012] Furthermore, the clamping mechanism also includes a push rod, wherein one side of the push rod is fixedly connected to the output end of the cylinder, and the other side of the push rod is fixedly connected to the slider. The clamping mechanism also includes a slide rail, wherein the slide rail is fixedly installed on one side of the fixed disk, and the slider is slidably connected to the fixed disk through the slide rail. The clamping mechanism also includes an active cavity, wherein multiple groups of active cavities are opened inside the fixed disk, and each group of active cavities serves to allow the connecting rod and the short rod to pass through. The clamping mechanism also includes a first rotating shaft and a second rotating shaft, wherein the first rotating shaft is movably installed between the slider and the connecting rod, and one end of the connecting rod and one end of the short rod are rotatably connected through the second rotating shaft.
[0013] By adopting the above technical solution, multiple groups of cylinders will drive multiple groups of push rods to move synchronously, and each group of push rods is fixedly connected to the slider. Therefore, when the push rod moves, it will drive the slider to slide inside the slide rail. In order to allow the short rod to rotate smoothly, multiple groups of movable cavities are opened inside the fixed plate to ensure that the short rod and connecting rod can pass smoothly.
[0014] Furthermore, a test sample is provided on the outside of the L-shaped rod, and the test sample includes a carbon brush holder and a carbon brush, wherein the carbon brush holder is located outside the long rod, and the carbon brush is installed inside the carbon brush holder, and the end of the carbon brush is in contact with the rotating roller. The test sample also includes a first detection point and a second detection point, wherein the first detection point and the second detection point are respectively fixedly installed on the outside of the carbon brush holder, and the first detection point and the second detection point play a role in performing electrical detection on the test sample by being in contact with the detection contacts.
[0015] By adopting the above technical solution, the carbon brushes installed on the carbon brush holder will fit exactly with the rotating roller in the simulation mechanism, and when the test sample moves, the first detection point and the second detection point will squeeze the test mechanism, making it easier to test the test sample.
[0016] To sum up, the present invention mainly has the following beneficial effects: the present invention utilizes the cylinder to drive the connecting rod to drive the L-shaped rod to rotate, thereby realizing automatic clamping and releasing of the test sample, and during the clamping process, the detection point on the test sample is tightly fitted with the detection contact, and the carbon brush is in continuous contact with the rotating roller in the simulation mechanism. The operation of the simulation mechanism can simulate the friction environment between the carbon brush and the rotor during actual operation, thereby obtaining electrical data that is closer to the actual operation. After the detection is completed, the cylinder reverses the action to tilt the L-shaped rod, and the test sample will automatically slide and fall into an external collection device to complete unmanned unloading. The entire process, by integrating the clamping, testing, and unloading functions, greatly reduces manual intervention, improves detection efficiency and reliability, and solves the technical problem that the use of a multimeter to detect the carbon brush holder cannot simulate the actual working environment and cannot accurately obtain the data of the carbon brush holder during actual operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 is a cutaway view of the present invention; Figure 3 For the present invention Figure 2 A magnified view of point A; Figure 4 It is a cross-sectional view of some parts of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point B; Figure 6 For the present invention Figure 3 Enlarged view of point C; Figure 7 It is a structural schematic diagram of local parts of the present invention; Figure 8 It is a cutaway view of a local part of the present invention; Figure 9 Schematic diagram of the structure of the detection sample of the present invention.
[0018] In the figure: 1. Machine body; 2. Simulation mechanism; 201. Motor; 202. Rotating shaft; 203. Rotating roller; 3. Fixed disk; 4. Clamping mechanism; 401. Cylinder; 402. Push rod; 403. Slider; 404. Connecting rod; 405. Slide rail; 406. Movable cavity; 407. Fixed rod; 408. First rotating shaft; 409. Second rotating shaft; 5. Detection mechanism; 501. Telescopic rod; 502. Spring; 503. Detection contact; 504. Press block; 6. L-shaped rod; 601. Short rod; 602. Long rod; 603. Fixed shaft; 7. Detection sample; 701. Brush holder; 702. Carbon brush; 703. First detection point; 704. Second detection point. DETAILED DESCRIPTION
[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.
[0020] The following describes an embodiment of the present invention based on its overall structure.
[0021] A carbon brush holder electrical detection mechanism, such as Figure 1-9As shown, it includes a body 1, a simulation mechanism 2 is provided inside the body 1, a fixed plate 3 is fixedly connected to one side of the body 1, a clamping mechanism 4 is provided inside the body 1, and a detection mechanism 5 is provided on one side of the fixed plate 3. The clamping mechanism 4 includes a cylinder 401, a slider 403, a connecting rod 404 and a fixed rod 407, wherein the cylinder 401 is fixedly mounted on the body 1, the output end of the cylinder 401 is fixedly connected to the slider 403, one side of the slider 403 is rotatably connected to the connecting rod 404, an L-shaped rod 6 is installed on one side of the connecting rod 404, and multiple groups of fixing rods 407 are fixedly connected to one side of the fixed plate 3; The multiple groups of cylinders 401 are activated synchronously, driving the slider 403 to slide inside the fixed plate 3. A connecting rod 404 is installed at one end of the slider 403, and is connected to the short rod 601 in the L-shaped rod 6 through the connecting rod 404. Therefore, after the cylinders 401 are activated, the slider 403 and the connecting rod 404 act to cause the short rod 601 to rotate toward the inside of the body 1 with the fixed axis 603 as the center, and drive the test sample 7 to move on the L-shaped rod 6. Furthermore, the L-shaped rod 6 includes a short rod 601, a long rod 602 and a fixed shaft 603, wherein the short rod 601 and the long rod 602 are integrated and the short rod 601 and the long rod 602 are at a 90-degree angle. The short rod 601 and the connecting rod 404 are rotatably connected, and the fixed shaft 603 is fixedly installed at the angle between the short rod 601 and the long rod 602. The L-shaped rod 6 is movably connected to the fixed plate 3 through the fixed shaft 603 and the fixed rod 407. The user can place the test sample 7 on the L-shaped rod 6 with the help of an external loading device or by manual loading. The interior of the carbon brush holder 701 will be stuck on the long rod 602 of the multiple groups of L-shaped rods 6. When the cylinder 401 drives the push rod 402, the rotation amplitude of the L-shaped rod 6 will increase until the L-shaped rod 6 rotates ninety degrees. At this time, the test sample 7 will move to the short rod 601. At this time, the test sample 7 will be between the long rod 602 and the fixed plate 3, achieving the effect of clamping and fixing the test sample 7. When the test sample 7 moves, the first detection point 703 and the second detection point 704 will squeeze the detection mechanism 5. In the example, the simulation mechanism 2 includes a motor 201, a rotating shaft 202, and a rotating roller 203, wherein the motor 201 is fixedly installed inside the body 1, the output end of the motor 201 is fixedly connected to the rotating shaft 202, and the end of the rotating shaft 202 is fixedly connected to the rotating roller 203; When the motor 201 is powered, it drives the rotating shaft 202 to rotate, and the rotating roller 203 will also rotate accordingly. At this time, since the carbon brush 702 is tightly attached to the rotating roller 203, when the rotating roller 203 rotates, it can simulate the working environment of the carbon brush holder 701 in actual work. In the example, the detection mechanism 5 includes a telescopic rod 501, a detection contact 503 and a pressure block 504, wherein the two groups of telescopic rods 501 are movably connected to the fixed plate 3, the detection contacts 503 are fixedly mounted at the ends of the telescopic rods 501, and one side of one group of detection contacts 503 is fixedly connected to the pressure block 504. The detection mechanism 5 also includes a spring 502, wherein the spring 502 is mounted at one end of the telescopic rod 501, and the other end of the spring 502 is fixedly connected to the body 1 via a support frame. The telescopic rod 501 is elastically connected to the body 1 via the spring 502; When the test sample 7 moves, it also presses one of the pressure blocks 504 installed on one side of the test contact 503. After the test sample 7 is clamped, the first test point 703 and the second test point 704 are tightly attached to the test contact 503. After the simulation mechanism 2 is started, the user activates the control system inside the body 1, and the test sample 7 can be tested for electrical properties such as grounding and insulation through the test contacts 503. In the example, the clamping mechanism 4 further includes a push rod 402, wherein one side of the push rod 402 is fixedly connected to the output end of the cylinder 401, and the other side of the push rod 402 is fixedly connected to the slider 403, the clamping mechanism 4 further includes a slide rail 405, wherein the slide rail 405 is fixedly mounted on one side of the fixed disk 3, and the slider 403 is slidably connected to the fixed disk 3 via the slide rail 405, the clamping mechanism 4 further includes a movable cavity 406, wherein multiple groups of movable cavities 406 are all opened inside the fixed disk 3, and each group of movable cavities 406 serves to allow the connecting rod 404 and the short rod 601 to pass through, the clamping mechanism 4 further includes a first rotating shaft 408 and a second rotating shaft 409, wherein the first rotating shaft 408 is movably mounted between the slider 403 and the connecting rod 404, and one end of the connecting rod 404 is rotatably connected to one end of the short rod 601 via the second rotating shaft 409; The multiple sets of cylinders 401 drive the multiple sets of push rods 402 to move synchronously, and each set of push rods 402 is fixedly connected to the slider 403. Therefore, when the push rods 402 move, they drive the slider 403 to slide inside the slide rail 405. In order to ensure the smooth rotation of the short rod 601, multiple sets of movable cavities 406 are opened inside the fixed plate 3 to ensure that the short rod 601 and the connecting rod 404 can pass smoothly. In the example, a test sample 7 is provided on the outside of the L-shaped rod 6. The test sample 7 includes a carbon brush holder 701 and a carbon brush 702, wherein the carbon brush holder 701 is located outside the long rod 602, and the carbon brush 702 is installed inside the carbon brush holder 701, and the end of the carbon brush 702 is in contact with the rotating roller 203. The test sample 7 also includes a first detection point 703 and a second detection point 704, wherein the first detection point 703 and the second detection point 704 are respectively fixedly mounted on the outside of the carbon brush holder 701. The first detection point 703 and the second detection point 704 are in contact with the detection contact 503 to perform electrical detection on the test sample 7. The carbon brush 702 installed on the carbon brush holder 701 will fit exactly with the rotating roller 203 in the simulation mechanism 2, and when the test sample 7 moves, the first test point 703 and the second test point 704 will squeeze the test mechanism 5, making it easier to test the test sample 7.
[0022] The working principle of the present invention is as follows: when in use, the power is turned on, and the user first places the test sample 7 on the L-shaped rod 6 using an external loading device or manual loading. The interior of the carbon brush holder 701 is then stuck on the long rod 602 in the multiple groups of L-shaped rods 6. At this time, the carbon brushes 702 installed on the carbon brush holder 701 will fit neatly with the rotating roller 203 in the simulation mechanism 2. At this time, the user activates the cylinder 401 in the clamping mechanism 4 through the control system provided in the body 1. The multiple cylinders 401 are activated synchronously, driving the multiple push rods 402 to move synchronously. Each push rod 402 is fixedly connected to the slider 403. Therefore, when the push rod 402 moves, it drives the slider 403 to slide inside the slide rail 405. A connecting rod 404 is installed at one end of the slider 403, and is connected to the short rod 601 in the L-shaped rod 6 through the connecting rod 404. Therefore, after the cylinder 401 is started, the short rod 601 will start to rotate toward the inside of the body 1 with the fixed axis 603 as the center under the action of the slider 403 and the connecting rod 404. In order to ensure the smooth rotation of the short rod 601, multiple groups of movable cavities 406 are opened in the fixed plate 3 to ensure that the short rod 601 and the connecting rod 404 can pass through smoothly. When the multiple groups of L-shaped rods 6 start to rotate synchronously, they will drive the test sample 7 to move on the L-shaped rod 6. As the cylinder 401 drives the push rod 402, the rotation amplitude of the L-shaped rod 6 increases until the L-shaped rod 6 rotates ninety degrees. At this time, the test sample 7 will move to the short rod 601. At this time, the test sample 7 will be between the long rod 602 and the fixed plate 3, achieving the effect of clamping and fixing the test sample 7. When the test sample 7 moves, the first detection point 703 and the second detection point 704 will squeeze the detection mechanism 5. When the test sample 7 moves, it also squeezes one of the pressure blocks 504 installed on one side of the test contact 503. After the test sample 7 is clamped, the first test point 703 and the second test point 704 will fit tightly with the test contact 503, facilitating subsequent electrical testing of the test sample 7. At this time, the user activates the simulation mechanism 2. The motor 201 is energized to drive the rotating shaft 202 to rotate, and the rotating roller 203 will also rotate accordingly. At this time, since the carbon brush 702 is tightly fitted with the rotating roller 203, when the rotating roller 203 rotates, it can simulate the working environment of the carbon brush holder 701 in actual operation. At this time, the user activates the control system inside the body 1, and the electrical properties such as grounding and insulation of the test sample 7 can be tested through the detection contact 503. After the test is completed, the simulation mechanism 2 stops working first, and then the cylinder 401 is started, so that the push rod 402 drives the slider 403 to move in the slide rail 405, so that the L-shaped rod 6 can be rotated through the connecting rod 404, and then the test sample 7 can be driven to move. When the cylinder 401 drives the push rod 402 to extend to the limit position, under the action of the connecting rod 404 and the short rod 601, the long rod 602 in the L-shaped rod 6 will be inclined. At this time, the test sample 7 will slide along the long rod 602 and fall into the collection device placed under the detection device, thereby realizing the function of automatic unloading and collection of the test sample 7, further saving manpower and time. After the test sample 7 is separated from the L-shaped rod 6, the cylinder 401 is activated and drives the L-shaped rod 6 back to its original position through the clamping mechanism 4, so that the long rod 602 is in a horizontal state, which is convenient for the next set of test samples 7 to be tested. At the same time, after the test sample 7 is separated from the L-shaped rod 6, the test contact 503 is restored to its original position under the action of the spring 502. The above structure can solve the technical problem that using a multimeter to detect the carbon brush holder 701 cannot simulate the actual working environment and thus cannot accurately obtain the data of the carbon brush holder 701 during actual work.
[0023] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.
Claims
1. A carbon brush holder electrical property detection mechanism, comprising a body (1), characterized in that: A simulation mechanism (2) is provided inside the body (1), a fixed disk (3) is fixedly connected to one side of the body (1), a clamping mechanism (4) is provided inside the body (1), and a detection mechanism (5) is provided on one side of the fixed disk (3); The clamping mechanism (4) comprises a cylinder (401), a slider (403), a connecting rod (404) and a fixed rod (407), wherein the cylinder (401) is fixedly mounted on the machine body (1), the output end of the cylinder (401) is fixedly connected to the slider (403), one side of the slider (403) is rotatably connected to the connecting rod (404), one side of the connecting rod (404) is mounted with an L-shaped rod (6), one side of the fixed plate (3) is fixedly connected to multiple groups of fixed rods (407), the L-shaped rod (6) comprises a short The short rod (601), the long rod (602) and the fixed shaft (603) are designed as an integrated whole, and the short rod (601) and the long rod (602) are at a ninety-degree angle, the short rod (601) and the connecting rod (404) are rotatably connected, the fixed shaft (603) is fixedly installed at the angle between the short rod (601) and the long rod (602), and the L-shaped rod (6) is movably connected to the fixed disk (3) through the fixed shaft (603) and the fixed rod (407).
2. The carbon brush holder electrical property detection mechanism according to claim 1, characterized in that: The simulation mechanism (2) comprises a motor (201), a rotating shaft (202) and a rotating roller (203), wherein the motor (201) is fixedly mounted inside the machine body (1), the output end of the motor (201) is fixedly connected to the rotating shaft (202), and the end of the rotating shaft (202) is fixedly connected to the rotating roller (203).
3. The carbon brush holder electrical property detection mechanism according to claim 1, characterized in that: The detection mechanism (5) comprises a telescopic rod (501), a detection contact (503) and a pressure block (504), wherein two groups of telescopic rods (501) are movably connected to the fixed plate (3), the detection contact (503) is fixedly mounted on the end of the telescopic rod (501), and one side of one group of the detection contacts (503) is fixedly connected to the pressure block (504).
4. The carbon brush holder electrical property detection mechanism according to claim 1, characterized in that: The clamping mechanism (4) further comprises a push rod (402), wherein one side of the push rod (402) is fixedly connected to the output end of the cylinder (401), and the other side of the push rod (402) is fixedly connected to the slider (403).
5. The carbon brush holder electrical property detection mechanism according to claim 1, characterized in that: The clamping mechanism (4) further comprises a slide rail (405), wherein the slide rail (405) is fixedly mounted on one side of the fixed disk (3), and the slider (403) is slidably connected to the fixed disk (3) via the slide rail (405).
6. The carbon brush holder electrical property detection mechanism according to claim 1, characterized in that: The clamping mechanism (4) further comprises a movable cavity (406), wherein a plurality of groups of movable cavities (406) are all opened inside the fixed disk (3), and each group of movable cavities (406) serves to allow the connecting rod (404) and the short rod (601) to pass through.
7. The carbon brush holder electrical property detection mechanism according to claim 1, characterized in that: The clamping mechanism (4) further comprises a first rotating shaft (408) and a second rotating shaft (409), wherein the first rotating shaft (408) is movably mounted between the slider (403) and the connecting rod (404), and one end of the connecting rod (404) is rotatably connected to one end of the short rod (601) via the second rotating shaft (409).
8. The carbon brush holder electrical property detection mechanism according to claim 3, characterized in that: The detection mechanism (5) further comprises a spring (502), wherein the spring (502) is mounted on one end of the telescopic rod (501), and the other end of the spring (502) is fixedly connected to the body (1) via a support frame, and the telescopic rod (501) is elastically connected to the body (1) via the spring (502).
9. The carbon brush holder electrical property detection mechanism according to claim 2, characterized in that: A test sample (7) is provided on the outside of the L-shaped rod (6), and the test sample (7) comprises a carbon brush holder (701) and a carbon brush (702), wherein the carbon brush holder (701) is located outside the long rod (602), and the carbon brush (702) is installed inside the carbon brush holder (701), and the end of the carbon brush (702) is in contact with the rotating roller (203).
10. The carbon brush holder electrical property detection mechanism according to claim 9, characterized in that: The test sample (7) further comprises a first test point (703) and a second test point (704), wherein the first test point (703) and the second test point (704) are respectively fixedly mounted on the outside of the carbon brush holder (701), and the first test point (703) and the second test point (704) perform electrical testing on the test sample (7) by being in contact with the test contact (503).