A motor shaft rotation runout detection device

Abstract

This utility model relates to the field of motor shaft runout detection technology, and discloses a motor shaft rotational runout detection device, including a base plate for supporting an upper component. A detection mechanism for detecting the motor shaft is arranged on one side of the upper end of the base plate, and a positioning component for positioning motor shafts of different sizes is arranged on the side of the upper end of the base plate away from the detection mechanism. The movable plate of the detection mechanism slides along the base plate and is finely adjusted in conjunction with the control column, which can flexibly adapt to motor shafts of different positions and lengths, laying the foundation for accurate detection. The steering ball joint allows the steering column to rotate in multiple directions, and combined with the fine adjustment of the rotating shaft, it can adapt to the tilt angle of the motor shaft or detect runout in different directions. The rotating shaft, connecting shaft, and other components are linked, which can adjust the position of the detection component in real time, avoiding the detection head from detaching or excessive pressure. The detection head is in contact with the motor shaft, and the pressure gauge converts the runout into a direct numerical value, achieving a flexible detection effect.

Description

Technical Field

[0001] This utility model relates to the field of motor shaft runout detection technology, specifically, to a motor shaft rotational runout detection device. Background Technology

[0002] In modern industrial manufacturing, many complex machines are assembled manually, including mobile phones and computers in the electronics industry, as well as automobile manufacturing and other home appliances; these industrial manufacturing processes require many small assembly steps to be combined together.

[0003] However, existing motor shaft runout detection devices are difficult to adjust the detection position according to motor shafts of different positions and lengths. This can lead to the detection components being unable to stably and accurately align with the detection area of ​​the motor shaft, resulting in data acquisition deviations during the detection process. Ultimately, this reduces the accuracy of the motor shaft rotational runout detection results and makes it difficult to meet the accuracy requirements of motor shaft detection under different working conditions. Therefore, those skilled in the art provide a motor shaft rotational runout detection device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a motor shaft rotation runout detection device to solve the problems in the prior art.

[0005] This utility model provides the following technical solution: a motor shaft rotation runout detection device, including a base plate for supporting an upper part, a detection mechanism for detecting the motor shaft is provided on one side of the upper end of the base plate, and a positioning component for positioning motor shafts of different sizes is provided on the side of the upper end of the base plate away from the detection mechanism.

[0006] As a preferred embodiment of the above technical solution, the detection mechanism includes a movable plate, which is slidably connected to one side of the upper end of the base plate. A control column is fixedly connected to the center of the upper end of the movable plate, and a base is fixedly connected to the top of the control column.

[0007] As a preferred embodiment of the above technical solution, a steering column is rotatably connected to the upper end of the base, and the base and the steering column are rotatably connected through a steering ball joint. A first connecting rod is fixedly connected to the upper end of the steering column, and a rotating shaft is rotatably connected to one side of the top end of the first connecting rod.

[0008] As a preferred embodiment of the above technical solution, a connecting shaft is rotatably connected to one side of the rotating shaft, and the connecting shaft passes through the inner cavity of the upper end of the first connecting rod. A second connecting rod is rotatably connected to the outer side of the connecting shaft away from the rotating shaft, and a steering rod is rotatably connected to the end of the second connecting rod away from the connecting shaft.

[0009] As a preferred embodiment of the above technical solution, a third link is fixedly connected to the outer side of the steering rod away from the second link, a detection shaft is fixedly connected to the inner cavity of the third link away from the steering rod, a pressure gauge is fixedly connected to one end of the detection shaft, and a detection head is fixedly connected to the end of the detection shaft away from the pressure gauge.

[0010] As a preferred embodiment of the above technical solution, the positioning component includes a movable shaft, which is fixedly connected to the upper end of the base plate on the side away from the movable plate. Two sets of symmetrically arranged positioning columns are slidably connected to the outer side of the movable shaft. A telescopic rod is slidably connected to the inner cavity of the upper end of the positioning column. One end of the telescopic rod is fixedly connected to a spring head for positioning the motor shaft, and two sets of the spring heads are symmetrically arranged.

[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention features a detection mechanism. Through the sliding connection between the movable plate and the base plate, combined with the fine-tuning of the base's position and posture by the control column, it can flexibly adapt to the detection needs of motor shafts of different positions and lengths, providing a precise initial positioning basis for detection. The steering ball joint design between the base and the steering column gives the steering column multi-directional rotation capability. Combined with the fine-tuning of the rotation of the top shaft of the first connecting rod, the posture of subsequent detection components can be flexibly adjusted. Even if the motor shaft has an angular tilt or needs to detect runout in different directions, it can ensure that the detection component accurately fits the surface of the motor shaft. The coordinated linkage of the rotating shaft, connecting shaft, second connecting rod, and steering rod forms a flexible transmission and adjustment mechanism, which can adjust the position of the detection component in real time according to the dynamic changes in the rotation of the motor shaft, preventing the detection head from detaching or excessive pressure from affecting accuracy. Furthermore, the third connecting rod drives the detection shaft to move synchronously, ensuring stable contact between the detection head and the motor shaft. A pressure gauge then converts the runout into a direct pressure value, allowing operators to accurately judge the amplitude and pattern of the runout. Overall, this achieves flexible adjustment of the detection position.

[0012] Based on the above-mentioned beneficial effects, this utility model is equipped with a positioning component. The moving shaft provides a stable foundation for adjustment, and two sets of symmetrical positioning columns can slide along the moving shaft to adjust the spacing, flexibly adapting to motor shafts of different lengths. The telescopic rod at the upper end of the positioning column can be extended and retracted according to the diameter of the motor shaft or the installation height. With the help of two sets of symmetrical spring heads at one end, it can achieve close contact with the surface of the motor shaft by means of spring elasticity, and firmly fix the motor shaft in the preset detection position, effectively preventing the motor shaft from shifting or shaking during the rotation detection process. It can also avoid damage to the surface of the motor shaft caused by rigid contact, and realize flexible positioning of motor shafts of different sizes. Attached Figure Description

[0013] Figure 1 A schematic diagram of the overall structure of a motor shaft rotation runout detection device; Figure 2This is a schematic diagram of the connection of the movable plate of the detection mechanism in a motor shaft rotation runout detection device; Figure 3 This is a schematic diagram of the pressure gauge connection in the detection mechanism of a motor shaft rotation runout detection device. Figure 4 A schematic diagram of the telescopic rod connection of the positioning component in a motor shaft rotation runout detection device; Figure 5 This is a schematic diagram of the steering column connection of a motor shaft rotation runout detection device.

[0014] In the diagram: 1. Base plate; 2. Detection mechanism; 21. Movable plate; 22. Control column; 23. Base; 24. Steering column; 25. First link; 26. Rotating shaft; 27. Connecting shaft; 28. Second link; 29. ​​Steering rod; 210. Third link; 211. Detection shaft; 212. Pressure gauge; 213. Detection head; 3. Positioning assembly; 31. Moving shaft; 32. Positioning column; 33. Telescopic rod; 34. Spring head. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] Please see Figures 1-5 As shown, this utility model provides a technical solution: a motor shaft rotation runout detection device, including a base plate 1 for supporting the upper part, a detection mechanism 2 for detecting the motor shaft is provided on one side of the upper end of the base plate 1, and a positioning component 3 for positioning motor shafts of different sizes is provided on the side of the upper end of the base plate 1 away from the detection mechanism 2.

[0017] First, the base plate 1 supports all components at the top of the device, providing a stable foundation for the entire testing operation. Next, the positioning component 3, located on the side of the base plate 1 away from the testing mechanism 2, adjusts according to the specific dimensions of the motor shaft to be tested. Through the coordinated action of its internal moving shaft 31, positioning column 32, telescopic rod 33, and spring head 34, it securely positions motor shafts of different sizes in the appropriate positions, ensuring that the motor shaft will not shift or shake during the testing process. Finally, the testing mechanism 2, located on one side of the top of the base plate 1, can then perform rotational runout testing on the accurately positioned motor shaft. Through the cooperation of the various components inside the testing mechanism 2, the rotational runout of the motor shaft is accurately detected.

[0018] As one implementation method in this embodiment, please refer to Figures 1-5 As shown, the detection mechanism 2 includes a movable plate 21, which is slidably connected to one side of the upper end of the base plate 1. A control column 22 is fixedly connected to the center of the upper end of the movable plate 21, and a base 23 is fixedly connected to the top of the control column 22.

[0019] The sliding connection structure between the movable plate 21 and the upper part of the base plate 1 near one side allows it to slide flexibly along the corresponding area of ​​the base plate 1. Operators can adjust the movable plate 21 to the appropriate initial testing position based on the actual testing requirements, such as the position and length of the motor shaft to be tested, laying the positional foundation for subsequent accurate testing. The control column 22, fixedly connected to the center of the upper end of the movable plate 21, plays a crucial role in connection and force transmission. On one hand, it stably supports the base 23 above; on the other hand, it can assist in fine-tuning its own angle under external force, thereby driving the fixed base 23 at the top to simultaneously achieve precise adjustment of its position or posture.

[0020] As one implementation method in this embodiment, please refer to Figures 2-5 As shown, a steering column 24 is rotatably connected to the upper end of the base 23. The base 23 and the steering column 24 are rotatably connected through a steering ball joint. A first connecting rod 25 is fixedly connected to the upper end of the steering column 24. A rotating shaft 26 is rotatably connected to one side of the top end of the first connecting rod 25.

[0021] The base 23 serves as the supporting foundation for the steering column 24, and is rotatably connected to the steering column 24 via a steering ball joint. The structural design of the steering ball joint gives the steering column 24 the ability to rotate flexibly in multiple directions. When the motor shaft to be tested is tilted at an angle, or when it is necessary to detect the rotational runout of the motor shaft in different directions, the steering column 24 can freely adjust its rotation angle around the steering ball joint, thereby driving the first connecting rod 25, which is fixedly connected at the upper end, to adjust its angle synchronously. At the same time, the rotating shaft 26, which is rotatably connected to one side of the top of the first connecting rod 25, can further achieve its own rotational fine adjustment based on the angle adjustment of the first connecting rod 25. Through the coordinated action of the steering column 24 and the rotating shaft 26, the posture of the subsequently connected detection components can be flexibly adjusted.

[0022] As one implementation method in this embodiment, please refer to Figures 3-5 As shown, a connecting shaft 27 is rotatably connected to one side of the rotating shaft 26, and the connecting shaft 27 passes through the inner cavity of the upper end of the first connecting rod 25. A second connecting rod 28 is rotatably connected to the outer side of the connecting shaft 27 away from the rotating shaft 26, and a steering rod 29 is rotatably connected to the end of the second connecting rod 28 away from the connecting shaft 27.

[0023] As the starting component for power and motion transmission, the rotating shaft 26 is rotatably connected to the connecting shaft 27 on one side, enabling it to transmit its own rotational motion to the connecting shaft 27. Simultaneously, the design of the connecting shaft 27 penetrating the upper inner cavity of the first connecting rod 25 serves both to limit and guide the movement of the connecting shaft 27, ensuring it moves only within a set range and preventing deviations that could affect detection accuracy, and to allow the connecting shaft 27 to move axially and rotate flexibly within the inner cavity of the first connecting rod 25. When the connecting shaft 27 rotates or moves axially under the drive of the rotating shaft 26, the second connecting rod 28, rotatably connected to its outer side away from the rotating shaft 26, will accordingly swing or adjust its angle, thus transmitting the motion to itself. The steering rod 29, rotatably connected to the end of the second connecting rod 28 away from the connecting shaft 27, can receive the motion of the second connecting rod 28 and convert it into its own steering action.

[0024] As one implementation method in this embodiment, please refer to Figures 3-5 As shown, a third link 210 is fixedly connected to the outer side of the steering rod 29 away from the second link 28. A detection shaft 211 is fixedly connected to the inner cavity of the third link 210 away from the steering rod 29. A pressure gauge 212 is fixedly connected to one end of the detection shaft 211. A detection head 213 is fixedly connected to the end of the detection shaft 211 away from the pressure gauge 212.

[0025] The third link 210, fixedly connected to the outer side of the end of the steering rod 29 furthest from the second link 28, can stably support the steering action and position adjustment of the steering rod 29 and accurately transmit these movements to itself. Since the inner cavity of the end of the third link 210 furthest from the steering rod 29 is fixedly connected to the detection shaft 211, this fixed structure ensures that the movement of the third link 210 can completely synchronize with the position and attitude adjustment of the detection shaft 211, avoiding deviations during movement transmission and allowing the detection shaft 211 to always follow the overall adjustment rhythm and adapt to the detection requirements of the motor shaft. The detection head 213, fixedly connected to the end of the detection shaft 211 furthest from the pressure gauge 212, is the component that directly contacts the motor shaft to be tested. Driven by the detection shaft 211, the detection head 213 can tightly fit against the surface of the motor shaft. When the motor shaft rotates and generates vibration, the vibration amount is transmitted to the detection shaft 211 through the detection head 213. The pressure gauge 212, which is fixedly connected to one end of the detection shaft 211, can convert the force or displacement generated by the motor shaft jump on the detection shaft 211 into a readable pressure value.

[0026] As one implementation method in this embodiment, please refer to Figures 1-4As shown, the positioning component 3 includes a movable shaft 31, which is fixedly connected to the upper end of the base plate 1 on the side away from the movable plate 21. Two sets of symmetrically arranged positioning columns 32 are slidably connected to the outer side of the movable shaft 31. A telescopic rod 33 is slidably connected to the inner cavity of the upper end of the positioning column 32. One end of the telescopic rod 33 is fixedly connected to a spring head 34 for positioning the motor shaft, and two sets of spring heads 34 are symmetrically arranged.

[0027] The movable shaft 31, as a core support component, is securely installed on the upper part of the base plate 1 away from the movable plate 21 via a fixed connection, providing a stable foundation for the operation of the entire positioning assembly 3. Since two sets of positioning posts 32 are symmetrically slidably connected to the outside of the movable shaft 31, operators can push the two sets of positioning posts 32 along the axial direction of the movable shaft 31 according to the length of the motor shaft to be tested, adjusting the distance between the two positioning posts 32 to match the length of the motor shaft and ensuring that the positioning range fully covers the support requirements of the motor shaft. Simultaneously, the telescopic rod 33, slidably connected to the inner cavity of the upper end of the positioning post 32, can be axially extended and retracted according to the diameter of the motor shaft or the installation height. Two sets of symmetrical spring heads 34 fixed at one end of the telescopic rod 33 can make close contact with the surface of the motor shaft under the push of the telescopic rod 33. The elastic properties of the spring heads 34 themselves can generate appropriate pressure upon contact, firmly fixing the motor shaft in the preset detection position and preventing the motor shaft from shifting or shaking during rotational testing.

[0028] Working principle: The base plate 1 provides stable support for all components at the upper end of the device. Then, the positioning component 3 located on the upper end of the base plate 1 away from the detection mechanism 2 starts to work: the movable shaft 31 fixed on the base plate 1 provides support for positioning adjustment. The operator slides two sets of symmetrical positioning columns 32 along the movable shaft 31 to adjust the spacing according to the length of the motor shaft to be tested, so as to adapt to the length of the motor shaft. At the same time, the telescopic rod 33 in the upper cavity of the positioning column 32 can extend or retract according to the diameter or height of the motor shaft. The two sets of symmetrical spring heads 34 at one end are in close contact with the surface of the motor shaft due to their elasticity, which can not only fix the motor shaft in the preset position to prevent displacement and shaking during testing, but also avoid rigid contact damage to the motor shaft. After positioning is completed, the detection mechanism 2 on one side of the upper end of the base plate 1 starts detection: the movable plate 21 slides along the base plate 1, and with the fine adjustment of the control column 22, the base 23 is adjusted to the initial position suitable for detection; the base 23 and the steering column 24 achieve multi-directional rotation through the steering ball joint, driving the first connecting rod 25 to adjust the angle, and the rotating shaft 26 at the top of the first connecting rod 25 is further rotated for fine adjustment to ensure that the subsequent components are adapted to the motor shaft angle; the rotating shaft 26 drives the connecting shaft 27 that passes through the inner cavity of the first connecting rod 25 to rotate or move axially, and the connecting shaft 27 then drives the second connecting rod 28 to swing, and the second connecting rod 28 transmits motion to steering rod 29 to make it turn; steering rod 29 drives detection shaft 211 to adjust its position and attitude synchronously through third link 210, so that detection head 213 at one end of detection shaft 211 is in close contact with the surface of motor shaft; when the motor shaft rotates and generates a jump, the jump amount is transmitted to detection shaft 211 through detection head 213, and pressure gauge 212 at the other end of detection shaft 211 converts the force or displacement generated by the jump into a readable pressure value. By observing the change in the value of pressure gauge 212, the staff can accurately judge the amplitude and pattern of the motor shaft rotation jump.

[0029] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A device for detecting the rotational runout of a motor shaft, characterized in that: It includes a base plate (1) for supporting the upper part, and a detection mechanism (2) for detecting the motor shaft is provided on one side of the upper end of the base plate (1). A positioning component (3) for positioning motor shafts of different sizes is provided on the side of the upper end of the base plate (1) away from the detection mechanism (2).

2. The motor shaft rotating run-out detection device according to claim 1, characterized in that: The detection mechanism (2) includes a movable plate (21), which is slidably connected to the upper end of the base plate (1) on one side. A control column (22) is fixedly connected to the upper center of the movable plate (21), and a base (23) is fixedly connected to the top of the control column (22).

3. The motor shaft rotating run-out detection device according to claim 2, characterized in that: The upper end of the base (23) is rotatably connected to a steering column (24). The base (23) and the steering column (24) are rotatably connected through a steering ball joint. The upper end of the steering column (24) is fixedly connected to a first connecting rod (25). The top of the first connecting rod (25) is rotatably connected to a rotating shaft (26) on one side.

4. The motor shaft rotating run-out detection device according to claim 3, characterized in that: A connecting shaft (27) is rotatably connected to one side of the rotating shaft (26), and the connecting shaft (27) passes through the inner cavity of the upper end of the first connecting rod (25). A second connecting rod (28) is rotatably connected to the outer side of the connecting shaft (27) away from the rotating shaft (26), and a steering rod (29) is rotatably connected to the end of the second connecting rod (28) away from the connecting shaft (27).

5. A device for detecting rotational run-out of a motor shaft according to claim 4, characterized in that: A third link (210) is fixedly connected to the outer side of the steering rod (29) away from the second link (28). A detection shaft (211) is fixedly connected to the inner cavity of the third link (210) away from the steering rod (29). A pressure gauge (212) is fixedly connected to one end of the detection shaft (211). A detection head (213) is fixedly connected to the end of the detection shaft (211) away from the pressure gauge (212).

6. The motor shaft rotating run-out detection device according to claim 2, characterized in that: The positioning component (3) includes a movable shaft (31), which is fixedly connected to the upper end of the base plate (1) away from the movable plate (21). Two sets of symmetrically arranged positioning columns (32) are slidably connected to the outer side of the movable shaft (31). A telescopic rod (33) is slidably connected to the inner cavity of the upper end of the positioning column (32). One end of the telescopic rod (33) is fixedly connected to a spring head (34) for positioning the motor shaft, and two sets of the spring heads (34) are symmetrically arranged.

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