A kind of electrically conductive slip ring fatigue life detection device and its detection method

Abstract

The application provides a kind of electrically conductive slip ring fatigue life detection device, including installation base plate, limiting guide rail and horizontal moving base, limiting guide rail is fixedly connected to the right side of the top of installation base plate, horizontal moving base is slidably arranged in limiting guide rail.The electrically conductive slip ring is placed between the current detector, four limiting plates can be self-adapting clamping and limiting for electrically conductive slip rings with different diameters due to the action of the first reset spring, the servo motor is started, the limiting plate reverses to drive the electrically conductive slip ring to reverse, the current detector transmits data to the processor for detection when the electrically conductive slip ring conducts electricity, so it can be suitable for electrically conductive slip rings with different diameters for detection, which is more convenient.

Description

Technical Field

[0001] This invention relates to the field of conductive slip ring testing technology, and in particular to a conductive slip ring fatigue life testing device and testing method. Background Technology

[0002] The function of a conductive slip ring is to transmit power and signals during rotation. The function of the conductive slip ring determines that it is a core component of the equipment or mechanism. Therefore, the expected reliability life of the conductive slip ring is the reliability guarantee that the conductive slip ring meets the usage requirements.

[0003] Patent publication number CN213934057U discloses a conductive slip ring life reliability testing device. This device features a simple structure, convenient testing, and strong practicality. It can perform random sampling inspections on mass-produced or purchased products to verify the batch-specific reliability of conductive slip ring life. The technical solution of this invention includes a base, a drive mechanism, a transmission mechanism, a support frame, a fixing mechanism, and a counting mechanism. The support frame is mounted on the base, and the drive mechanism, transmission mechanism, and fixing mechanism are supported by the support frame. The drive mechanism is connected to the transmission mechanism, which is connected to the stator or rotor of the conductive slip ring. The fixing mechanism is connected to the rotor or stator of the conductive slip ring. The counting mechanism is located on one side of the conductive slip ring and is used to detect the number of rotations of the conductive slip ring. Although the above patent can achieve the testing of conductive slip rings, the varying diameters of the conductive slip rings necessitate testing on different models of testing devices, which is cumbersome. Summary of the Invention

[0004] To overcome the drawback that different diameter conductive slip rings require different testing devices for testing, which is cumbersome, this invention provides a conductive slip ring fatigue life testing device and method. This device is applicable to conductive slip rings of different diameters and can conveniently test conductive slip rings.

[0005] The technical solution of this invention:

[0006] A fatigue life testing device for conductive slip rings includes a mounting base, a limiting guide rail, a transverse base, a current detector, a limiting spring, and a support plate. The limiting guide rail is fixed to the top right side of the mounting base, and the transverse base is slidably mounted inside the limiting guide rail. The support plate is fixed to the top left side of the mounting base, and two current detectors for detecting conductive slip rings are slidably mounted on the support plate. Each current detector is connected to the support plate by two limiting springs. The device is characterized by further including a rotating mechanism and a limiting mechanism. A rotating mechanism that provides power for the rotation of the conductive slip ring is provided between the mounting base and the transverse base, and a limiting mechanism for limiting the movement of the conductive slip ring is provided on the rotating mechanism.

[0007] To further explain, it also includes a support frame, with the support frame fixed to the bottom of the mounting base.

[0008] To further explain, the rotating mechanism includes a servo motor, a drive hexagonal shaft, a drive gear, an external gear ring, and a rotating frame. The servo motor is fixedly connected to the bottom right side of the mounting base. The drive hexagonal shaft is rotatably mounted on the top right side of the mounting base. The drive hexagonal shaft is slidably connected to the transverse base. The drive hexagonal shaft and the output shaft of the servo motor are driven by a synchronous belt. The drive gear is rotatably mounted in the middle of the left side of the transverse base. The drive gear is slidably connected to the drive hexagonal shaft. The rotating frame is rotatably mounted on the upper part of the transverse base. An external gear ring is fixedly connected to the left side of the rotating frame. The external gear ring meshes with the drive gear.

[0009] To further explain, the limiting mechanism includes a limiting plate, a reset guide post, and a first reset spring. Four sets of reset guide posts are fixedly connected at intervals on the left side of the rotating frame. Each set of reset guide posts has two posts. A limiting plate is slidably provided on each of the four sets of reset guide posts. Two first reset springs are connected between each of the four limiting plates and the rotating frame. The first reset springs are wound around the reset guide posts.

[0010] Further explanation: It also includes a locking mechanism for locking the limit plates. The locking mechanism includes a first hydraulic cylinder, a first hydraulic rod, a magnetic guide rail, a first liquid guide tube, a second hydraulic cylinder, a first hydraulic frame, a locking frame, a positioning stand, and a positioning spring. Four first hydraulic cylinders are fixedly connected at intervals on the left side of the rotating frame. Each of the four first hydraulic cylinders has a first hydraulic rod slidably installed inside. The four first hydraulic rods are respectively fixedly connected to the four limit plates. A magnetic guide rail is fixedly connected to the upper right side of the transverse base. A second hydraulic cylinder is fixedly connected to the middle of the rotating frame. A first liquid guide tube connects the second hydraulic cylinder to the four first hydraulic cylinders. A first hydraulic frame is slidably installed inside the second hydraulic cylinder. A locking frame is rotatably installed inside the magnetic guide rail. The magnetic guide rail can attract the locking frame. A positioning stand is fixedly connected to the right side of the rotating frame. The locking frame is sleeved on the positioning stand. Positioning springs are symmetrically connected between the locking frame and the positioning stand.

[0011] Further explanation: It also includes a support mechanism for positioning and supporting the conductive slip ring. This support mechanism includes a buffer plate, a buffer spring, a hydraulic tank, a second hydraulic frame, a positioning link, a support side frame, a third hydraulic cylinder, a second guide pipe, a second hydraulic rod, and a second return spring. A buffer plate is slidably mounted on the lower part of the transverse base, and two buffer springs connect the buffer plate to the transverse base. A hydraulic tank is embedded in the lower part of the support plate, and a second hydraulic frame is slidably mounted inside the hydraulic tank. A second return spring connects the hydraulic tank and the second hydraulic frame. A positioning link is symmetrically rotated in the middle of the support plate, and a support side frame for positioning and supporting the conductive slip ring is fixed to both the front and rear positioning links. A third hydraulic cylinder is symmetrically rotated in the lower part of the support plate, and a second guide pipe connects both the front and rear third hydraulic cylinders to the hydraulic tank. A second hydraulic rod is slidably mounted inside both the front and rear third hydraulic cylinders, and the front and rear second hydraulic rods are rotatably connected to the front and rear positioning links, respectively.

[0012] Further explanation: It also includes a positioning mechanism for precisely moving the transverse base. The positioning mechanism includes a limit screw and a positioning grip. The lower part of the support plate is equipped with a limit screw that rotates symmetrically back and forth. The limit screws on the front and rear sides are driven by a synchronous belt. The limit screws are threadedly connected to the transverse base. The left side of the rear limit screw is fixedly connected to the positioning grip.

[0013] Further explanation: It also includes an anti-wear mechanism for protecting the conductive slip ring. The anti-wear mechanism includes an anti-wear plate and a fixing block. Each of the two current detectors has a set of fixing blocks symmetrically fixed to the front and back. There are two fixing blocks in each set, and an anti-wear plate for protecting the conductive slip ring is fixed to each fixing block.

[0014] The method of using a conductive slip ring fatigue life testing device is as follows, characterized by including the following steps:

[0015] S1. First, the operator connects the two current detectors to the external processor, and then places the conductive slip ring to be tested between the two current detectors.

[0016] S2. Pull the horizontal base to limit the conductive slip ring with the limiting plate, and then start the servo motor so that the limiting plate drives the conductive slip ring to rotate between the two current detectors.

[0017] S3. After the conductive slip ring has been running at high speed for a period of time, the current detector will record the contact resistance and wear morphology of the conductive slip ring and detect its conductivity. Then, the data will be transmitted to the processor, which will analyze the data and calculate the service life of the conductive slip ring.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. In this invention, conductive slip rings are placed between current detectors. Due to the action of the first reset spring, the four limiting plates can adaptively clamp and limit conductive slip rings of different diameters. When the servo motor is started, the limiting plates reverse and drive the conductive slip rings to reverse. The current detectors transmit the conductive data of the conductive slip rings to the processor for detection. In this way, conductive slip rings of different diameters can be used for detection, which is more convenient.

[0020] 2. Under the action of the support mechanism, the positioning connecting rods on the front and rear sides swing inward, which in turn drives the support side frames on the front and rear sides to swing inward. The inward swing of the support side frames on the front and rear sides positions the conductive slip ring, so as to avoid the possible displacement of the rotation center of the current detector during the detection of the conductive slip ring, which would affect the detection results. In this way, the displacement of the rotation center of the current detector during the detection of the conductive slip ring can be avoided.

[0021] 3. With the action of the anti-wear mechanism, the operator places the conductive slip ring into the upper and lower current detectors. The anti-wear plate prevents the conductive slip ring from rubbing against the current detector, which would cause fine scratches on the conductive slip ring and affect the detection. In this way, friction between the conductive slip ring and the current detector can be avoided when placing the conductive slip ring. Attached Figure Description

[0022] Figure 1 This is a first-view three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a second-view three-dimensional structural diagram of the present invention.

[0024] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the first embodiment of the present invention.

[0025] Figure 4 This is a partial cross-sectional view of the rotating mechanism of the present invention.

[0026] Figure 5 This is a partial cross-sectional view of the limiting mechanism of the present invention.

[0027] Figure 6 This is a schematic diagram of a second partial cross-sectional structure of the present invention.

[0028] Figure 7 This is a partial cross-sectional view of the locking mechanism of the present invention.

[0029] Figure 8 This is a schematic cross-sectional view of the second type of locking mechanism of the present invention.

[0030] Figure 9 This is a cross-sectional view of the third part of the locking mechanism of the present invention.

[0031] Figure 10This is a schematic cross-sectional view of the first type of support mechanism of the present invention.

[0032] Figure 11 This is a schematic cross-sectional view of the second type of support mechanism of the present invention.

[0033] Figure 12 This is a cross-sectional view of the third part of the support mechanism of the present invention.

[0034] Figure 13 This is a schematic diagram of the third partial cross-sectional structure of the present invention.

[0035] Figure 14 This is a partial cross-sectional view of the positioning mechanism of the present invention.

[0036] Figure 15 This is a partial cross-sectional view of the anti-wear mechanism of the present invention.

[0037] The above-mentioned attached drawings include the following reference numerals: 1. Mounting base plate; 2. Support frame; 3. Limiting guide rail; 4. Horizontal sliding base; 5. Current detector; 51. Limiting spring; 6. Supporting upright plate; 7. Rotating mechanism; 71. Servo motor; 72. Drive hexagonal shaft; 73. Drive gear; 74. External gear ring; 75. Rotating circular frame; 8. Limiting mechanism; 81. Limiting plate; 82. Reset guide post; 83. First reset spring; 9. Locking mechanism; 91. First hydraulic cylinder; 92. First hydraulic rod; 93. Magnetic guide rail; 94. First liquid guide tube; 95. The first... 96. Second hydraulic cylinder, 97. First hydraulic frame, 98. Locking frame, 99. Positioning stand, 10. Positioning spring, 10. Support mechanism, 101. Buffer short plate, 102. Buffer spring, 103. Hydraulic tank, 104. Second hydraulic frame, 105. Positioning connecting rod, 106. Support side frame, 107. Third hydraulic cylinder, 108. Second guide pipe, 109. Second hydraulic rod, 1010. Second return spring, 11. Positioning mechanism, 111. Limiting screw, 112. Positioning grip, 12. Anti-wear mechanism, 121. Anti-wear plate, 122. Fixing block. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0039] Example 1

[0040] A device and method for testing the fatigue life of a conductive slip ring, such as Figures 1-5As shown, the system includes a mounting base 1, a support frame 2, a limiting guide rail 3, a transverse base 4, a current detector 5, a limiting spring 51, a supporting upright plate 6, a rotating mechanism 7, and a limiting mechanism 8. The support frame 2 is fixed to the bottom of the mounting base 1. The limiting guide rail 3 is fixed to the top right side of the mounting base 1. The transverse base 4 is slidably installed inside the limiting guide rail 3. The supporting upright plate 6 is fixed to the top left side of the mounting base 1. The current detector 5 is slidably installed on the supporting upright plate 6. The current detector 5 can detect the life of the conductive slip ring. Two limiting springs 51 are connected between the two current detectors 5 and the supporting upright plate 6. A rotating mechanism 7 is set between the mounting base 1 and the transverse base 4. The rotating mechanism 7 can provide power for the rotation of the conductive slip ring. The limiting mechanism 8 is set on the rotating mechanism 7. The limiting mechanism 8 can limit the movement of the conductive slip ring.

[0041] like Figure 3 and Figure 4 As shown, the rotating mechanism 7 includes a servo motor 71, a drive hexagonal shaft 72, a drive gear 73, an external gear ring 74, and a rotating frame 75. The servo motor 71 is fixedly connected to the bottom right side of the mounting base 1. The drive hexagonal shaft 72 is rotatably mounted on the top right side of the mounting base 1. The drive hexagonal shaft 72 is slidably connected to the transverse base 4. The drive hexagonal shaft 72 and the output shaft of the servo motor 71 are driven by a synchronous belt. The drive gear 73 is rotatably mounted in the middle of the left side of the transverse base 4. The drive gear 73 is slidably connected to the drive hexagonal shaft 72. The rotating frame 75 is rotatably mounted on the upper part of the transverse base 4. The external gear ring 74 is fixedly connected to the left side of the rotating frame 75. The external gear ring 74 meshes with the drive gear 73.

[0042] like Figure 3 and Figure 5 As shown, the limiting mechanism 8 includes a limiting plate 81, a reset guide post 82, and a first reset spring 83. Four sets of reset guide posts 82 are fixedly connected at intervals on the left side of the rotating frame 75. Each set of reset guide posts 82 has two posts. The four sets of reset guide posts 82 are slidably provided with a limiting plate 81. Two first reset springs 83 are connected between each of the four limiting plates 81 and the rotating frame 75. The first reset springs 83 are wound around the reset guide posts 82.

[0043] First, the operator connects the upper and lower current detectors 5 to an external processor. Then, the conductive slip ring to be tested is placed between the upper and lower current detectors 5. The limiting spring 51 acts as a buffer. Next, the horizontal moving base 4 is pulled to the left. Pulling the horizontal moving base 4 to the left moves the rotating frame 75 to the left. The rotating frame 75 moves to the left, which in turn moves the four limiting plates 81 to the left. The four limiting plates 81 are engaged in the conductive slip ring. Due to the action of the first reset spring 83, the four limiting plates 81 can adaptively clamp and limit conductive slip rings of different diameters. The servo motor 71 is started. The servo motor 71 drives the drive hexagonal shaft 72 to rotate via a synchronous belt. The drive hexagonal shaft 72 rotates forward, which drives the drive gear 73 to rotate forward. The drive gear 73 rotates forward, which drives the external gear ring 74 to rotate in reverse. The external gear ring 74 rotates in reverse, which drives the rotating frame. The rotating frame 75 reverses, causing the four limit plates 81 to reverse, which in turn causes the conductive slip ring to reverse. Since the conductive slip ring reverses between the upper and lower current detectors 5, the current detectors 5 record the contact resistance and wear morphology of the conductive slip ring and transmit the data to the processor. The processor analyzes the conductivity of the conductive slip ring and calculates its service life. After the conductive slip ring detection is completed, the servo motor 71 is turned off. The servo motor 71 stops driving the hexagonal shaft 72 to rotate forward via the synchronous belt, and the rotating frame 75 stops reversing. Then, the transverse base 4 is pulled to move the rotating frame 75 to the right to reset, and the four limit plates 81 move to the right and disengage from the conductive slip ring. The conductive slip ring can then be removed for further processing.

[0044] Example 2

[0045] Based on Example 1, such as Figures 6-9 As shown, it also includes a locking mechanism 9, which includes a first hydraulic cylinder 91, a first hydraulic rod 92, a magnetic guide rail 93, a first liquid guide tube 94, a second hydraulic cylinder 95, a first hydraulic frame 96, a locking frame 97, a positioning stand 98, and a positioning spring 99. Four first hydraulic cylinders 91 are fixedly connected at intervals on the left side of the rotating circular frame 75. Each of the four first hydraulic cylinders 91 has a first hydraulic rod 92 slidably mounted inside it. The four first hydraulic rods 92 are respectively fixedly connected to four limiting plates 81. A locking mechanism 92 is fixedly connected to the upper right side of the transverse base 4. A magnetic guide rail 93 and a rotating circular frame 75 are fixedly connected to a second hydraulic cylinder 95. A first liquid guide pipe 94 connects the second hydraulic cylinder 95 to four first hydraulic cylinders 91. A first hydraulic frame 96 is slidably provided inside the second hydraulic cylinder 95. A locking frame 97 is rotatably provided inside the magnetic guide rail 93. The magnetic guide rail 93 can attract the locking frame 97. A positioning frame 98 is fixedly connected to the right side of the rotating circular frame 75. The locking frame 97 is sleeved on the positioning frame 98. Positioning springs 99 are symmetrically connected between the locking frame 97 and the positioning frame 98.

[0046] like Figure 6 , Figure 10 , Figure 11 and Figure 12 As shown, it also includes a support mechanism 10, which includes a buffer short plate 101, a buffer spring 102, a hydraulic tank 103, a second hydraulic frame 104, a positioning link 105, a support side frame 106, a third hydraulic cylinder 107, a second guide pipe 108, a second hydraulic rod 109, and a second return spring 1010. The buffer short plate 101 is slidably provided at the lower part of the transverse base 4, and two buffer springs 102 are connected between the buffer short plate 101 and the transverse base 4. The hydraulic tank 103 is embedded in the lower part of the support upright plate 6, and the second hydraulic frame 104 is slidably provided inside the hydraulic tank 103. The hydraulic tank 103 and the second hydraulic rod 104 are connected. A second return spring 1010 is connected between the frames 104. A positioning link 105 is symmetrically rotated in the middle of the support plate 6. A support side frame 106 is fixed to the positioning link 105 on both the front and rear sides. The support side frame 106 can realize the positioning support of the conductive slip ring. A third hydraulic cylinder 107 is symmetrically rotated in the lower part of the support plate 6. A second liquid guide pipe 108 is connected between the third hydraulic cylinder 107 on both the front and rear sides and the hydraulic tank 103. A second hydraulic rod 109 is slidably installed in the third hydraulic cylinder 107 on both the front and rear sides. The second hydraulic rod 109 on both the front and rear sides is rotatably connected to the positioning link 105 on the front and rear sides respectively.

[0047] When the four limiting plates 81 move to the left and engage with the conductive slip ring, the conductive slip ring causes the four limiting plates 81 to move inward. The first return spring 83 is compressed, and the inward movement of the four limiting plates 81 drives the four first hydraulic rods 92 to move inward. The four first hydraulic rods 92, through the first guide pipe 94, discharge hydraulic oil into the second hydraulic cylinder 95, thereby causing the first hydraulic frame 96 to move to the right. Subsequently, when the servo motor 71 operates, the positioning spring 99 is compressed, and the rotating frame 75 reverses, causing the first hydraulic frame 96 to reverse as well. The first hydraulic frame 96 then engages with the groove of the locking frame 97, limiting the first hydraulic frame 96. The locking frame 97 also limits the first hydraulic frame 96, thus limiting the limiting plates 81 and preventing them from disengaging from the conductive slip ring during rotation. At the same time, the reverse rotation of the rotating frame 75 also causes the positioning stand 98 to reverse, making contact with the locking frame 97. The positioning spring 99 is compressed, and then the positioning stand 98 continues to reverse, driving the locking frame 97 to reverse as well. The locking frame 97 slides within the magnetic guide rail 93. After the conductive slip ring detection is completed, the servo motor 71 is turned off, and the rotating frame 75 stops driving the positioning stand 98 to reverse. The magnetic guide rail 93 attracts and positions the locking frame 97. Due to the action of the positioning spring 99, the positioning stand 98 drives the first hydraulic frame 96 to rotate in the opposite direction a certain distance through the rotating frame 75. The first hydraulic frame 96 disengages from the locking frame 97, and then the transverse base 4 is pulled to disengage the four limiting plates 81 from the conductive slip ring. Due to the action of the first reset spring 83, the four limiting plates 81 respectively drive the four first hydraulic rods 92 to move outward and reset. The hydraulic oil is drawn back into the first hydraulic cylinder 91, and the first hydraulic frame 96 also moves to the left and resets. In this way, the limiting plates 81 can be prevented from disengaging from the conductive slip ring, which would affect the detection.

[0048] When the horizontal sliding base 4 is pulled to the left, the leftward movement of the horizontal sliding base 4 causes the buffer short plate 101 to move to the left. The buffer short plate 101 moves to the left and contacts the second hydraulic frame 104. The buffer short plate 101 continues to move to the left, causing the second hydraulic frame 104 to move to the left. The first return spring 83 is compressed, and the buffer spring 102 plays a buffering role. The second hydraulic frame 104 moves to the left and discharges hydraulic oil into the third hydraulic cylinders 107 on the front and rear sides through the second guide pipes 108 on both sides. As a result, the second hydraulic rods 109 on both sides extend and cause the positioning connecting rods 105 on both sides to swing inward. The inward swing of the positioning connecting rods 105 on both sides causes the supporting side frames 106 on both sides to swing inward. The front and rear support side frames 106 swing inward to position the conductive slip ring, preventing it from shifting from the rotation center of the current detector 5 during testing, which could affect the test results. After the conductive slip ring test is completed, the horizontal base 4 is pulled to move the buffer plate 101 to the right to reset. The buffer plate 101 moves to the right and disengages from the second hydraulic frame 104. Due to the action of the second reset spring 1010, the second hydraulic frame 104 moves to the right to reset. Subsequently, the second hydraulic rods 109 on the front and rear sides retract and drive the positioning connecting rods 105 on the front and rear sides to swing outward to reset. The front and rear support side frames 106 also swing outward to reset. In this way, the shift from the rotation center of the current detector 5 during the conductive slip ring test can be avoided.

[0049] Example 3

[0050] Based on Examples 1 and 2, such as Figure 13 and Figure 14 As shown, it also includes a positioning mechanism 11, which includes a limiting screw 111 and a positioning grip 112. The lower part of the support plate 6 is symmetrically and rotatably provided with the limiting screw 111. The limiting screws 111 on the front and rear sides are driven by a synchronous belt. The limiting screw 111 is threadedly connected to the transverse base 4. The positioning grip 112 is fixedly connected to the left side of the rear limiting screw 111.

[0051] like Figure 13 and Figure 15 As shown, it also includes an anti-wear mechanism 12, which includes an anti-wear plate 121 and a fixing block 122. A set of fixing blocks 122 is symmetrically fixed to each of the two current detectors 5. There are two fixing blocks 122 in each set, and an anti-wear plate 121 is fixed to each fixing block 122. When the conductive slip ring is placed between the upper and lower current detectors 5, the anti-wear plate 121 can protect the conductive slip ring and prevent scratches.

[0052] When the transverse base 4 needs to be moved to the left, the positioning grip 112 is turned in reverse. The reverse rotation of the positioning grip 112 drives the rear limit screw 111 to reverse. The synchronous belt drive causes the front and rear limit screws 111 to reverse synchronously. The reverse rotation of the front and rear limit screws 111 drives the transverse base 4 to move to the left. Similarly, if the transverse base 4 needs to be moved to the right, the positioning grip 112 is turned clockwise. The front and rear limit screws 111 also turn clockwise, driving the transverse base 4 to move to the right. This allows for more precise movement and adjustment of the transverse base 4.

[0053] When people use this device, the operator places the conductive slip ring into the upper and lower current detectors 5. The anti-wear plate 121 prevents the conductive slip ring from rubbing against the current detector 5, which would cause fine scratches on the conductive slip ring and affect the detection. In this way, friction between the conductive slip ring and the current detector 5 can be avoided when the conductive slip ring is placed.

[0054] Example 4

[0055] The method of using a conductive slip ring fatigue life testing device is as follows, characterized by including the following steps:

[0056] S1. First, the operator connects the two current detectors 5 to the external processor, and then places the conductive slip ring to be tested between the two current detectors 5.

[0057] S2. Pull the horizontal base 4 to limit the conductive slip ring with the limiting plate 81, and then start the servo motor 71 so that the limiting plate 81 drives the conductive slip ring to rotate between the two current detectors 5.

[0058] S3. After the conductive slip ring has been running at high speed for a period of time, the current detector 5 will record the contact resistance and wear morphology of the conductive slip ring and detect its conductivity. Then, the data will be transmitted to the processor. The processor will analyze the data of the conductive slip ring and calculate its service life.

[0059] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A device for detecting the fatigue life of a conductive slip ring, comprising a mounting base (1), a limiting guide rail (3), a transverse base (4), a current detector (5), a limiting spring (51), and a supporting plate (6), wherein the limiting guide rail (3) is fixedly connected to the top right side of the mounting base (1), the transverse base (4) is slidably provided inside the limiting guide rail (3), the supporting plate (6) is fixedly connected to the top left side of the mounting base (1), and two current detectors (5) for detecting conductive slip rings are slidably provided on the supporting plate (6), and two limiting springs (51) are connected between each of the two current detectors (5) and the supporting plate (6), characterized in that, It also includes a rotating mechanism (7) and a limiting mechanism (8). A rotating mechanism (7) is provided between the mounting base (1) and the transverse base (4) to provide power for the rotation of the conductive slip ring. A limiting mechanism (8) for limiting the conductive slip ring is provided on the rotating mechanism (7). It also includes a support frame (2), and the bottom of the mounting plate (1) is fixed with the support frame (2). The rotating mechanism (7) includes a servo motor (71), a drive hexagonal shaft (72), a drive gear (73), an external gear ring (74), and a rotating frame (75). The servo motor (71) is fixedly connected to the bottom right side of the mounting base (1). The drive hexagonal shaft (72) is rotatably mounted on the top right side of the mounting base (1). The drive hexagonal shaft (72) is slidably connected to the transverse base (4). The drive hexagonal shaft (72) and the output shaft of the servo motor (71) are driven by a synchronous belt. The drive gear (73) is rotatably mounted in the middle of the left side of the transverse base (4). The drive gear (73) is slidably connected to the drive hexagonal shaft (72). The rotating frame (75) is rotatably mounted on the upper part of the transverse base (4). The external gear ring (74) is fixedly connected to the left side of the rotating frame (75). The external gear ring (74) meshes with the drive gear (73). The limiting mechanism (8) includes a limiting plate (81), a reset guide post (82) and a first reset spring (83). Four sets of reset guide posts (82) are fixedly connected at intervals on the left side of the rotating frame (75). Each set of reset guide posts (82) has two posts. The four sets of reset guide posts (82) are slidably provided with a limiting plate (81). Two first reset springs (83) are connected between the four limiting plates (81) and the rotating frame (75). The first reset springs (83) are wound around the reset guide posts (82).

2. The conductive slip ring fatigue life testing device according to claim 1, characterized in that, It also includes a locking mechanism (9) for locking the limiting plate (81). The locking mechanism (9) includes a first hydraulic cylinder (91), a first hydraulic rod (92), a magnetic guide rail (93), a first liquid guide tube (94), a second hydraulic cylinder (95), a first hydraulic frame (96), a locking frame (97), a positioning stand (98), and a positioning spring (99). Four first hydraulic cylinders (91) are fixedly connected at intervals on the left side of the rotating round frame (75). Each of the four first hydraulic cylinders (91) is provided with a first hydraulic rod (92) in a sliding manner. The four first hydraulic rods (92) are respectively fixedly connected to the four limiting plates (81). The upper right side of the transverse base (4) A magnetic guide rail (93) is fixed to the side. A second hydraulic cylinder (95) is fixed to the middle of the rotating round frame (75). A first liquid guide pipe (94) is connected between the second hydraulic cylinder (95) and the four first hydraulic cylinders (91). A first hydraulic frame (96) is slidably provided inside the second hydraulic cylinder (95). A locking frame (97) is rotatably provided inside the magnetic guide rail (93). The magnetic guide rail (93) can attract the locking frame (97). A positioning stand (98) is fixed to the right side of the rotating round frame (75). The locking frame (97) is sleeved on the positioning stand (98). A positioning spring (99) is symmetrically connected between the locking frame (97) and the positioning stand (98).

3. The conductive slip ring fatigue life testing device according to claim 2, characterized in that, It also includes a support mechanism (10) for positioning and supporting the conductive slip ring. The support mechanism (10) includes a buffer short plate (101), a buffer spring (102), a hydraulic tank (103), a second hydraulic frame (104), a positioning link (105), a support side frame (106), a third hydraulic cylinder (107), a second guide pipe (108), a second hydraulic rod (109), and a second return spring (1010). The lower part of the transverse base (4) is provided with a buffer short plate (101), and two buffer springs (102) are connected between the buffer short plate (101) and the transverse base (4). The lower part of the support plate (6) is provided with a hydraulic tank (103), and the second hydraulic frame (1010) is provided with a sliding second hydraulic frame (1010). 04), a second return spring (1010) is connected between the hydraulic tank (103) and the second hydraulic frame (104). A positioning link (105) is symmetrically rotated in the middle of the support plate (6). A support side frame (106) for positioning and supporting the conductive slip ring is fixed on the positioning link (105) on both the front and rear sides. A third hydraulic cylinder (107) is symmetrically rotated in the lower part of the support plate (6). A second liquid guide pipe (108) is connected between the third hydraulic cylinder (107) on both the front and rear sides and the hydraulic tank (103). A second hydraulic rod (109) is slidably installed in the third hydraulic cylinder (107) on both the front and rear sides. The second hydraulic rod (109) on both the front and rear sides is rotatably connected to the positioning link (105) on both the front and rear sides respectively.

4. The conductive slip ring fatigue life testing device according to claim 3, characterized in that, It also includes a positioning mechanism (11) for precisely moving the transverse base (4). The positioning mechanism (11) includes a limit screw (111) and a positioning grip (112). The lower part of the support plate (6) is equipped with a limit screw (111) that rotates symmetrically from front to back. The limit screws (111) on the front and rear sides are driven by a synchronous belt. The limit screw (111) is threadedly connected to the transverse base (4). The left side of the rear limit screw (111) is fixedly connected to the positioning grip (112).

5. The conductive slip ring fatigue life testing device according to claim 4, characterized in that, It also includes an anti-wear mechanism (12) for protecting the conductive slip ring. The anti-wear mechanism (12) includes an anti-wear plate (121) and a fixing block (122). A set of fixing blocks (122) is symmetrically fixed to both current detectors (5). There are two fixing blocks (122) in each set. An anti-wear plate (121) for protecting the conductive slip ring is fixed to each fixing block (122).

6. The method of using the conductive slip ring fatigue life testing device according to claim 5, characterized in that, Includes the following steps: S1. First, the operator connects the two current detectors (5) to the processor, and then places the conductive slip ring to be tested between the two current detectors (5). S2. Pull the horizontal base (4) to limit the conductive slip ring with the limiting plate (81), and then start the servo motor (71) so that the limiting plate (81) drives the conductive slip ring to rotate between the two current detectors (5). S3. After the conductive slip ring runs at high speed for a period of time, the current detector (5) will record the contact resistance and wear morphology of the conductive slip ring and the conductivity. Then the data will be transmitted to the processor. The processor will analyze the data of the conductive slip ring and calculate the service life of the conductive slip ring.

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