A low-voltage electrical appliance rotor testing device
By designing a low-voltage electrical rotor detection device including a base, a driving mechanism and a fixing mechanism, the problems of low detection efficiency and poor accuracy in the prior art are solved, and efficient and accurate detection of rotors of different sizes are achieved.
Patent Information
- Application Number
- CN202421438661.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-21
AI Technical Summary
During the inspection process, existing low-voltage electrical rotor detection equipment has gaps due to wear of the fixture, which affects the detection results. Rotors of different sizes need to replace the corresponding fixtures, which reduces the detection efficiency.
A low-voltage electrical rotor detection device including a base, a driving mechanism and a fixing mechanism is designed. The fixing mechanism achieves multi-direction clamping of the rotor through components such as slides, rollers and screws to avoid vibrations, and adapts to rotors of different sizes through an adjustable structure.
It effectively avoids vibrations of the rotor during the detection process, improves the accuracy of the detection results, and adapts to rotors of different sizes through a unified fixture structure, improving detection efficiency.
Smart Images
Figure CN222704235U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rotor detection, in particular to a low-voltage electrical appliance rotor detection device. Background Art
[0002] Low-voltage electrical appliances refer to components or devices that work in circuits with an AC voltage of less than 1000V and a DC voltage of less than 1500V. According to external signals and requirements, they can manually or automatically connect and disconnect circuits to achieve switching, control, protection, detection and regulation of circuits or non-electrical objects, as well as electrical equipment that uses electrical energy to control, protect and regulate non-electrical processes and non-electrical devices.
[0003] A rotor refers to a rotating body supported by bearings. It is mostly the main rotating component in power machinery and working machinery and is widely used in low-voltage electrical appliances. After the rotor is produced, due to various factors such as uneven material or defects in the blank, errors caused by processing and assembly, and even asymmetric geometric shapes during design, the centrifugal inertial forces generated by each tiny particle on the rotor cannot offset each other when it rotates. The centrifugal inertial forces act on the machine and its foundation through the bearings, causing vibration, generating noise, accelerating bearing wear, shortening the life of the machine, and in severe cases causing destructive accidents. Therefore, the rotor needs to be dynamically balanced before use.
[0004] When performing a dynamic balancing test on a rotor, a clamp is required to fix the shafts at both ends of the rotor. As the use time increases, the clamp gradually wears out, resulting in a gap between the clamp and the shaft. When the rotor moves, the shaft vibrates inside the clamp, thus affecting the test results. In addition, rotors of different sizes need to be replaced with corresponding clamps, which reduces the test effect.
[0005] Therefore, it is necessary to provide a new low-voltage electrical appliance rotor detection device to solve the above technical problems. Utility Model Content
[0006] The technical problem solved by the utility model is to provide a low-voltage electrical appliance rotor detection device which can improve rotor detection efficiency and increase rotor detection effect accuracy.
[0007] In order to solve the above technical problems, the low-voltage electrical appliance rotor detection equipment provided by the utility model includes: a base, a driving mechanism for driving the low-voltage electrical appliance rotor to rotate is installed on the surface of the base, both ends of the low-voltage electrical appliance rotor are fixedly connected to the rotating shaft, and the two sides of the base are slidably connected to the fixing mechanism for fixing the low-voltage electrical appliance rotor; the fixing mechanism includes a slide and a support plate, the surface of the base is slidably connected to the slide, and the top of the slide is fixedly connected to the support plate; the interior of the slide is symmetrically rotationally connected to the second roller, and the side wall of the second roller is fixedly connected to the first roller; the bottom end of the support plate is threadedly connected to the screw, and the bottom end of the screw is connected to a pressure wheel through a detection mechanism, the pressure wheel, the first roller and the second roller are all rotationally connected to the side wall of the rotating shaft, and the detection mechanism is connected to the side wall of the rotating shaft.
[0008] Preferably, the fixing mechanism also includes a protrusion and a slide groove, the surface of the base is provided with a slide groove, the inside of the slide groove is slidably connected to the protrusion, and the bottom end of the slide seat is symmetrically fixedly connected to the protrusion; the slide seat is threadedly connected to the bolt, and the bottom end of the bolt is fixedly connected to a rubber pad; a plurality of ribs are installed on the surface of the base, and the rubber pad contacts the ribs and the surface of the base.
[0009] Preferably, the detection mechanism includes a fixed shell, the pressure wheel is internally rotatably connected to the pressure wheel, a displacement sensor is installed inside the fixed shell, a probe is installed on the side wall of the fixed shell, and the probe is connected to the displacement sensor; a protective pad is installed at the bottom end of the probe, and the protective pad is slidably connected to the side wall of the rotating shaft.
[0010] Preferably, the screw rod is rotationally connected to the fixed shell, the side wall of the fixed shell is fixedly connected to a limiting rod, and the limiting rod is slidably connected to the side wall of the support plate.
[0011] Preferably, the diameter of the second roller is greater than the diameter of the first roller, and the center between the two second rollers and the center of the pressing wheel are located in the same plane.
[0012] Preferably, the driving mechanism includes a fixed seat, the surface of the base is fixedly connected to the fixed seat at the center, the fixed seat is installed with a servo motor, the output shaft of the servo motor is connected to a sleeve shaft, and the sleeve shaft and the side wall of the low-voltage electrical appliance rotor are slidingly connected by a belt.
[0013] Preferably, the driving mechanism also includes an adjusting rod, the side wall of the fixed seat is rotatably connected to the adjusting rod, the side wall of the adjusting rod is threadedly connected to the fixed sleeve, the side wall of the fixed sleeve is rotatably connected to the sleeve shaft, one end of the fixed sleeve is fixedly connected to a block, and the block is slidably connected to the side wall of the fixed seat.
[0014] Compared with the related art, the low-voltage electrical appliance rotor detection equipment provided by the utility model has the following beneficial effects:
[0015] The utility model provides a low-voltage electrical appliance rotor detection device. When detecting the low-voltage electrical appliance rotor, the slide seat is slid to make the two slide seats approach each other, the rotating shaft is placed between the two first rollers, and then the slide seat is moved. The slide seats approach each other and drive the second roller to contact the side wall of the rotating shaft, so that the second roller fixes the rotating shaft to prevent the rotating shaft from sliding under the action of the side wall of the first roller; the screw rod is rotated, and the screw rod drives the detection mechanism and the pressure wheel to move downward, so that the pressure wheel contacts the top of the rotating shaft. When the rotating shaft rotates for dynamic balancing detection, the pressure wheel, the first roller and the second roller cooperate with each other to clamp the rotating shaft from all directions to prevent the internal vibration of the rotating shaft in the fixing mechanism from affecting the detection effect; and the rotating shaft is fixed by the cooperation of the pressure wheel, the first roller and the second roller, so that the rotating shafts of different sizes are placed between the first rollers, so as to facilitate the detection of low-voltage electrical appliance rotors of different sizes and improve the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A structural schematic diagram of a preferred embodiment of the low-voltage electrical appliance rotor detection device provided by the utility model;
[0017] Figure 2 for Figure 1 A side view of the slide structure shown;
[0018] Figure 3 for Figure 2 The schematic diagram of the internal structure of the testing mechanism shown;
[0019] Figure 4 for Figure 1 A side view of the fixing seat structure shown;
[0020] Figure 5 for Figure 4 A top view of the fixing seat structure is shown.
[0021] Numbers in the figure: 1. base, 2. driving mechanism, 21. fixed seat, 22. belt, 23. servo motor, 24. adjusting rod, 25. sleeve shaft, 26. fixed sleeve, 27. block, 3. low-voltage electrical appliance rotor, 31. rotating shaft, 4. fixing mechanism, 41. slide seat, 42. bolt, 43. support plate, 44. limiting rod, 45. screw, 46. bump, 47. slide groove, 48. rib, 49. rubber pad, 410. pressure wheel, 411. first roller, 412. second roller, 5. detection mechanism, 51. probe, 52. fixed shell, 53. displacement sensor, 54. protective pad. DETAILED DESCRIPTION
[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.
[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 .in Figure 1 A structural schematic diagram of a preferred embodiment of the low-voltage electrical appliance rotor detection device provided by the utility model; Figure 2 for Figure 1 A side view of the slide structure shown; Figure 3 for Figure 2 The schematic diagram of the internal structure of the testing mechanism shown; Figure 4 for Figure 1 A side view of the fixing seat structure shown; Figure 5 for Figure 4 The top view of the fixed seat structure is shown. The low-voltage electrical appliance rotor detection equipment includes: a base 1, the surface of the base 1 is installed with a driving mechanism 2 for driving the low-voltage electrical appliance rotor 3 to rotate, both ends of the low-voltage electrical appliance rotor 3 are fixedly connected to the rotating shaft 31, the driving mechanism 2 includes a fixed seat 21, the surface of the base 1 is fixedly connected to the fixed seat 21 at the center, the fixed seat 21 is installed with a servo motor 23, the output shaft of the servo motor 23 is connected to the sleeve shaft 25, the sleeve shaft 25 and the side wall of the low-voltage electrical appliance rotor 3 are slidably connected to the belt 22; the driving mechanism 2 also includes an adjusting rod 24, the side wall of the fixed seat 21 is rotatably connected to the adjusting rod 24, the side wall of the fixed sleeve 26 is rotatably connected to the sleeve shaft 25, one end of the fixed sleeve 26 is fixedly connected to a card block 27, and the card block 27 is slidably connected to the side wall of the fixed seat 21; when the low-voltage electrical appliance is rotated, the fixed seat 21 is fixedly connected to the rotating shaft 31, and the fixed seat 21 is fixedly connected to the rotating shaft 31; ... When the rotor 3 is fixed between the fixing mechanism 4, the belt 22 is used to be sleeved on the sleeve shaft 25 and the side wall of the low-voltage electrical appliance rotor 3, and the adjusting rod 24 is rotated. The side wall of the adjusting rod 24 is threadedly connected with the fixing sleeve 26. By utilizing the principle of spiral transmission, the fixing sleeve 26 moves downward on the side wall of the adjusting rod 24, and the fixing sleeve 26 drives the block 27 to move along the side wall of the fixing seat 21 to prevent the fixing sleeve 26 from rotating on the side wall of the adjusting rod 24. The fixing sleeve 26 moves downward and drives one of the sleeve shafts 25 to move downward, so that the sleeve shaft 25 moves downward to tighten the belt 22, and the servo motor 23 is turned on. The servo motor 23 drives the sleeve shaft 25 and the belt 22 to rotate, and the belt 22 drives the low-voltage electrical appliance rotor 3 and the rotating shaft 31 to rotate.
[0024] The fixing mechanism 4 also includes a protrusion 46 and a slide groove 47. The surface of the base 1 is provided with a slide groove 47, and the inside of the slide groove 47 is slidably connected to the protrusion 46. The bottom end of the slide seat 41 is symmetrically fixedly connected to the protrusion 46; the slide seat 41 is threadedly connected to the bolt 42, and the bottom end of the bolt 42 is fixedly connected to the rubber pad 49; a plurality of ribs 48 are installed on the surface of the base 1, and the rubber pad 49 contacts the ribs 48 and the surface of the base 1. When the rotating shaft 31 is installed and fixed, the slide seat 41 is moved, and the slide seat 41 drives the protrusion 46 The slide seats 41 move inside the slide groove 47 to approach each other, so that the rotating shaft 31 is placed on the side wall of the first roller 411, and the second rollers 412 approach each other and contact the side wall of the rotating shaft 31 to prevent the rotating shaft 31 from shaking left and right; after the position adjustment of the slide seat 41 is completed, the bolt 42 is rotated, and the bolt 42 drives the rubber pad 49 to squeeze and contact the surface of the rib 48 and the base 1, and the rib 48 increases the friction between the rubber pad 49 and the base 1, thereby fixing the slide seat 41 on the surface of the base 1.
[0025] And the two sides of the base 1 are slidably connected to the fixing mechanism 4 for fixing the low-voltage electrical appliance rotor 3; the fixing mechanism 4 includes a slide 41 and a support plate 43, the surface of the base 1 is slidably connected to the slide 41, and the top of the slide 41 is fixedly connected to the support plate 43; the interior of the slide 41 is symmetrically rotationally connected to the second roller 412, and the side wall of the second roller 412 is fixedly connected to the first roller 411; the bottom end of the support plate 43 is threadedly connected to the screw 45, and the bottom end of the screw 45 is connected to the pressure wheel 410 through the detection mechanism 5, and the pressure wheel 410, the first roller 411 and the second roller 412 are all rotationally connected to the side wall of the rotating shaft 31, and the detection mechanism 5 is connected to the side wall of the rotating shaft 31. After the rotating shaft 31 is fixed to the side walls of the first roller 411 and the second roller 412, the screw 45 is rotated, and the screw 45 drives the detection mechanism 5 and the pressure wheel 410 to move downward, so that the pressure wheel 410 contacts the top of the rotating shaft 30. When the rotating shaft 31 rotates for dynamic balancing detection, the pressure wheel 410, the first roller 411 and the second roller 412 cooperate with each other to clamp the rotating shaft 31 from all directions to prevent the internal vibration of the rotating shaft 31 in the fixing mechanism 4 from affecting the detection effect; and the rotating shaft 31 is fixed by the pressure wheel 410, the first roller 411 and the second roller 412, so that the rotating shaft 31 of different sizes can be placed between the first roller 411, thereby facilitating the detection of the low-voltage electrical appliance rotor 3 of different sizes and improving the detection efficiency.
[0026] The diameter of the second roller 412 is greater than that of the first roller 411. In order to facilitate the second roller 412 to contact the side wall of the rotating shaft 31 and prevent the rotating shaft 31 from shaking left and right, the center between the two second rollers 412 and the center of the pressing wheel 410 are located in the same plane. In order to facilitate the pressing wheel 410 to move downward and contact the highest point of the rotating shaft 31, the rotating shaft 31 is fixed between the first roller 411 and the second roller 412.
[0027] The detection mechanism 5 includes a fixed shell 52, the pressure wheel 410 is rotatably connected to the pressure wheel 410, a displacement sensor 53 is installed inside the fixed shell 52, a probe 51 is installed on the side wall of the fixed shell 52, and the probe 51 is connected to the displacement sensor 53; a pad 54 is installed at the bottom end of the probe 51, and the pad 54 is slidably connected to the side wall of the rotating shaft 31; the screw 45 is rotatably connected to the fixed shell 52, the side wall of the fixed shell 52 is fixedly connected to the limit rod 44, and the limit rod 44 is slidably connected to the side wall of the support plate 43, when the screw 45 rotates on the side wall of the support plate 43, the screw 45 is fixed on the fixed shell 52. The side wall of the shell 52 rotates, the screw 45 drives the fixed shell 52 to move up and down, and the fixed shell 52 drives the limit rod 44 to move up and down inside the support plate 43, preventing the fixed shell 52 and the pressure wheel 410 from rotating on the side wall of the screw 45, facilitating the fixed shell 52 to move linearly downward, so that the pad 54 contacts the side wall of the rotating shaft 31. When the rotating shaft 31 is subjected to dynamic balancing detection, the pad 54 protects the probe 51 from damage, and the probe 51 is used to capture the vibration or displacement signal of the low-voltage electrical appliance rotor 3, and the displacement sensor 53 converts it into an electrical signal, thereby detecting the low-voltage electrical appliance rotor 3.
[0028] The working principle of the low-voltage electrical appliance rotor detection device provided by the utility model is as follows: when installing and fixing the rotating shaft 31, the slide 41 is moved, and the slide 41 drives the protrusion 46 to move inside the slide groove 47, so that the slides 41 are close to each other, so that the rotating shaft 31 is placed on the side wall of the first roller 411, and the second roller 412 is close to each other and contacts the side wall of the rotating shaft 31, so as to prevent the rotating shaft 31 from shaking left and right; after the position adjustment of the slide 41 is completed, the bolt 42 is rotated, and the bolt 42 drives the rubber pad 49 to squeeze and contact the surface of the rib 48 and the base 1, and the The rib 48 increases the friction between the rubber pad 49 and the base 1, thereby fixing the slide 41 on the surface of the base 1 and turning to the screw 45. The screw 45 rotates on the side wall of the fixed shell 52. The screw 45 drives the fixed shell 52 to move up and down, and the fixed shell 52 drives the limit rod 44 to move up and down inside the support plate 43, preventing the fixed shell 52 and the pressure wheel 410 from rotating on the side wall of the screw 45, making it easier for the fixed shell 52 and the pressure wheel 410 to move linearly downward, so that the pad 54 and the pressure wheel 410 contact the side wall of the rotating shaft 31. The belt 22 is sleeved on the sleeve shaft 25 and the side wall of the low-voltage electrical appliance rotor 3, and the adjusting rod 24 is rotated. The side wall of the adjusting rod 24 is threadedly connected to the fixed sleeve 26. By utilizing the principle of spiral transmission, the fixed sleeve 26 moves downward on the side wall of the adjusting rod 24, and the fixed sleeve 26 drives the block 27 to move along the side wall of the fixing seat 21 to prevent the fixed sleeve 26 from rotating on the side wall of the adjusting rod 24. The fixed sleeve 26 moves downward and drives one of the sleeve shafts 25 to move downward, so that the sleeve shaft 25 moves downward to tighten the belt 22. The device is connected to an external power source, and the servo motor 23 is turned on. The servo motor 23 drives the sleeve shaft 25 and the belt 22 to rotate, and the belt 22 drives the low-voltage electrical appliance rotor 3 and the rotating shaft 31 to rotate. When the rotating shaft 31 rotates, the probe 51 is used to capture the vibration or displacement signal of the low-voltage electrical appliance rotor 3, and the displacement sensor 53 converts it into an electrical signal, thereby detecting the low-voltage electrical appliance rotor 3, and by controlling the rotation speed of the servo motor 23 to change the rotation speed of the low-voltage electrical appliance rotor 3 and the rotating shaft 31, the dynamic balance of the low-voltage electrical appliance rotor 3 is detected at different rotation speeds.When the rotating shaft 31 rotates for dynamic balancing detection, the pressure wheel 410, the first roller 411 and the second roller 412 cooperate with each other to clamp the rotating shaft 31 from all directions to prevent the internal vibration of the rotating shaft 31 in the fixing mechanism 4 from affecting the detection effect; and the rotating shaft 31 is fixed by the pressure wheel 410, the first roller 411 and the second roller 412, which is convenient for placing the rotating shaft 31 of different sizes between the first roller 411, thereby facilitating the detection of the low-voltage electrical appliance rotor 3 of different sizes and improving the detection efficiency.
[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A low voltage electrical appliance rotor detection device, characterized in that: include: A base (1), a driving mechanism (2) for driving a low-voltage electrical appliance rotor (3) to rotate is installed on the surface of the base (1), both ends of the low-voltage electrical appliance rotor (3) are fixedly connected to a rotating shaft (31), and both sides of the base (1) are slidably connected to a fixing mechanism (4) for fixing the low-voltage electrical appliance rotor (3); The fixing mechanism (4) comprises a slide seat (41) and a support plate (43); the surface of the base (1) is slidably connected to the slide seat (41), and the top end of the slide seat (41) is fixedly connected to the support plate (43); the interior of the slide seat (41) is symmetrically rotationally connected to the second roller (412), and the side wall of the second roller (412) is fixedly connected to the first roller (411); the bottom end of the support plate (43) is threadedly connected to the screw rod (45), and the bottom end of the screw rod (45) is connected to the pressure wheel (410) through the detection mechanism (5); the pressure wheel (410), the first roller (411) and the second roller (412) are all rotationally connected to the side wall of the rotating shaft (31), and the detection mechanism (5) is connected to the side wall of the rotating shaft (31).
2. The low-voltage electrical appliance rotor detection device according to claim 1 is characterized in that: The fixing mechanism (4) further comprises a protrusion (46) and a slide groove (47); the surface of the base (1) is provided with a slide groove (47); the interior of the slide groove (47) is slidably connected to the protrusion (46); the bottom end of the slide seat (41) is symmetrically fixedly connected to the protrusion (46); the slide seat (41) is threadedly connected to the bolt (42); the bottom end of the bolt (42) is fixedly connected to a rubber pad (49); a plurality of ribs (48) are installed on the surface of the base (1), and the rubber pad (49) contacts the ribs (48) and the surface of the base (1).
3. The low-voltage electrical appliance rotor detection device according to claim 1 is characterized in that: The detection mechanism (5) comprises a fixed shell (52), the interior of the pressure wheel (410) is rotatably connected to the pressure wheel (410), a displacement sensor (53) is installed inside the fixed shell (52), a probe (51) is installed on the side wall of the fixed shell (52), and the probe (51) is connected to the displacement sensor (53); a protective pad (54) is installed at the bottom end of the probe (51), and the protective pad (54) is slidably connected to the side wall of the rotating shaft (31).
4. The low-voltage electrical appliance rotor detection device according to claim 3 is characterized in that: The screw rod (45) is rotationally connected to the fixed shell (52), the side wall of the fixed shell (52) is fixedly connected to the limiting rod (44), and the limiting rod (44) is slidably connected to the side wall of the support plate (43).
5. The low-voltage electrical appliance rotor detection device according to claim 1, characterized in that: The diameter of the second roller (412) is greater than the diameter of the first roller (411), and the center between the two second rollers (412) and the center of the pressing wheel 4 (10) are located in the same plane.
6. The low-voltage electrical appliance rotor detection device according to claim 1, characterized in that: The driving mechanism (2) comprises a fixed seat (21), the fixed seat (21) is fixedly connected to the center of the surface of the base (1), a servo motor (23) is installed on the fixed seat (21), the output shaft of the servo motor (23) is connected to a sleeve shaft (25), and the sleeve shaft (25) and the side wall of the low-voltage electrical appliance rotor (3) are slidably connected by a belt (22).
7. The low-voltage electrical appliance rotor detection device according to claim 6, characterized in that: The driving mechanism (2) further comprises an adjusting rod (24), the side wall of the fixing seat (21) is rotatably connected to the adjusting rod (24), the side wall of the adjusting rod (24) is threadedly connected to a fixing sleeve (26), the side wall of the fixing sleeve (26) is rotatably connected to the sleeve shaft (25), one end of the fixing sleeve (26) is fixedly connected to a clamping block (27), and the clamping block (27) is slidably connected to the side wall of the fixing seat (21).