A rotating machine vibration measuring device

By using a self-positioning measuring device with multi-angle adjustment and centering clamping, the problem of non-perpendicular contact in the vibration measurement of rotating machinery is solved, thus achieving measurement accuracy and stability and improving the effectiveness of predictive maintenance.

CN122062172BActive Publication Date: 2026-07-14LONGYAN UNIV
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Patent Information

Application Number
CN202610520005.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-04-20
Publication Date
2026-07-14
Estimated Expiration
2046-04-20

AI Technical Summary

Technical Problem

In existing vibration measurements of rotating machinery, handheld vibration meters do not make perpendicular contact with curved surfaces, leading to measurement errors and reduced maintenance effectiveness.

Method used

A self-positioning measuring device is adopted, and the vibration meter is clamped by a multi-angle adjustment component and a centering plate to ensure that the probe is in perpendicular contact with the tangent of the arc surface of the rotating machinery. The centering rubber plate and the mounting rubber plate are adapted to the surface of the vibration meter to improve the measurement stability.

Benefits of technology

To ensure measurement accuracy, improve the effectiveness of predictive maintenance, avoid vibration energy attenuation or distortion, and enhance the accuracy and stability of measurement results.

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Abstract

The application belongs to the technical field of rotary vibration measurement, and particularly relates to a rotary machine vibration measurement device. When rotary machine vibration is measured, handheld vibration measurement equipment is prone to non-perpendicular contact with an arc surface, resulting in errors. The present application proposes the following scheme, which comprises a measurement table, and the upper side of the measurement table is fixedly connected with a sliding groove frame. The rotary machine vibration measurement device disclosed in the application measures by using a self-positioning measurement assembly to mechanically clamp the vibration measurement equipment through two centering plates and two mounting plates. The vibration measurement equipment is always centered and clamped by the two centering plates, so that the probe of the vibration measurement equipment is always in perpendicular contact with the tangent of the arc surface of the rotary machine before and after measurement, avoiding non-perpendicular contact, which can cause the vibration energy received by the probe to attenuate or distort, and cannot truly reflect the actual vibration state of the machine. The present application can ensure measurement accuracy and improve the effectiveness of predictive maintenance.
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Description

Technical Field

[0001] This invention relates to the field of rotational vibration measurement technology, and more particularly to a rotating machinery vibration measurement device. Background Technology

[0002] Rotating machinery refers to equipment that relies on rotating components to achieve energy conversion or material transport, such as turbines, compressors, pumps, and motors. Vibration measurement of these machines aims to assess the equipment's operating status in real time by monitoring vibration signals, detect potential faults such as imbalance, misalignment, or wear early, thereby preventing sudden shutdowns, improving operational safety, and extending equipment life. This vibration monitoring technology is widely used in key fields such as power, petrochemicals, aerospace, and manufacturing to ensure the continuity and reliability of production processes.

[0003] The vibration measurement surface of rotating machinery is usually the arc-shaped surface of the outer wall of the rotating machinery around the center of rotation. However, the existing measurement method is for the operator to directly measure the arc-shaped surface of the rotating machinery with a handheld vibration meter. In this process, it is impossible to ensure that the probe of the vibration meter is in perpendicular contact with the tangent of the arc-shaped surface. As a result, non-perpendicular contact will cause the vibration energy received by the probe to be attenuated or distorted, which cannot truly reflect the actual vibration state of the machinery. This not only fails to ensure the accuracy of the measurement, but also reduces the effectiveness of predictive maintenance. Summary of the Invention

[0004] This invention discloses a rotating machinery vibration measuring device, which aims to solve the technical problem in the background art that when measuring the vibration of rotating machinery, the handheld vibration meter is prone to non-perpendicular contact with the curved surface, resulting in errors and reducing the effectiveness of maintenance.

[0005] This invention proposes a rotating machinery vibration measuring device, comprising a measuring platform, a slide frame fixedly connected to the upper side of the measuring platform, a lifting cylinder fixedly connected to the lower inner wall of the slide frame, a multi-angle adjustment component slidably connected inside the slide frame, the telescopic end of the lifting cylinder being fixedly connected to the multi-angle adjustment component, a self-positioning measuring component being provided at one end of the multi-angle adjustment component, the self-positioning measuring component comprising a fixed frame, a vibration meter placed inside the fixed frame, multiple slides being opened on both sides of the fixed frame, a centering plate being slidably connected inside each pair of opposite slides, and a centering rubber plate being fixedly connected to the opposite side of each of the two centering plates.

[0006] In a preferred embodiment, a through hole is provided on one side of the centering plate, and a centering rod is fixedly connected inside the two through holes. The two centering rods slide inside the corresponding movable slots on both sides of the fixed frame. A through hole is provided on both sides of the fixed frame, and a rotating shaft is connected inside the two through holes through bearings. A disc is fixedly connected to the outer wall of the two rotating shafts.

[0007] In a preferred embodiment, two fixed shafts are fixedly connected at equal intervals on the sides of the two disks that are far apart from each other. The outer walls of the two fixed shafts on the same disk are respectively connected to one end of a push-pull plate via bearings. The other ends of the two push-pull plates on the same side are respectively connected to the outer wall of one end of the corresponding centering rod via bearings.

[0008] In a preferred embodiment, a motor frame is fixedly connected to one side of the fixed frame, one end of a rotating shaft passes through one side of the motor frame and is located outside it, and a fixed motor is fixedly connected to the other side of the motor frame, with the drive end of the fixed motor connected to one end of the rotating shaft via a coupling.

[0009] In a preferred embodiment, brake gears are fixedly connected to the outer walls of the two rotating shafts, and the two brake gears are located between the corresponding discs and the fixed frame.

[0010] In a preferred embodiment, multiple clamping holes are equally spaced on both sides of the fixed frame, and limit rods are slidably connected inside the multiple clamping holes. The same mounting plate is fixedly connected to one end of the multiple limit rods on the same side inside the fixed frame, and mounting rubber plates are fixedly connected to the opposite sides of the two mounting plates.

[0011] In a preferred embodiment, two mounting holes are respectively opened on both sides of the fixed frame. A double-acting screw is connected to each pair of opposite mounting holes through a bearing. One end of each of the two mounting plates is sleeved on the outer wall of the two double-acting screws. Driven gears are fixedly connected to the outer walls of the two double-acting screws located outside the fixed frame. Multiple driven gears mesh with corresponding brake gears. A connecting frame is fixedly connected to the outer wall of the fixed frame. A fixed frame is provided on the side of the connecting frame away from the fixed frame. A measuring telescopic rod is fixedly connected to the inner wall of the fixed frame. The telescopic end of the measuring telescopic rod passes through the fixed frame and is fixedly connected to the connecting frame.

[0012] In a preferred embodiment, the multi-angle adjustment component includes a sliding block that slides inside a slide rail frame. A circular hole is provided on one side of the sliding block, and an adjustment shaft is connected inside the circular hole via a bearing. A drive motor is fixedly connected to the other side of the sliding block, and the drive end of the drive motor is connected to one end of the adjustment shaft via a coupling. A support frame is fixedly connected to the other end of the adjustment shaft.

[0013] In a preferred embodiment, an arc-shaped frame is fixedly connected to the end of the support frame away from the sliding block. Limiting slots are provided on both sides of the arc-shaped frame, and the same arc-shaped toothed plate is slidably connected inside the two limiting slots. The fixed frame is fixedly connected to the inner wall of the arc-shaped toothed plate. An adjustment hole is provided on one side of the support frame, and a drive shaft is connected to the adjustment hole through a bearing. An adjustment motor is fixedly connected to the other side of the support frame. The drive end of the adjustment motor is connected to one end of the drive shaft through a coupling. An adjustment gear is fixedly connected to the outer wall of the drive shaft inside the support frame. The adjustment gear passes through the opening in the outer wall of the arc-shaped frame and meshes with the arc-shaped toothed plate.

[0014] In a preferred embodiment, a U-shaped frame is fixedly connected to one side of the arc-shaped frame, a rotating shaft is connected to the inner wall of the opening of the U-shaped frame via a bearing, a rotating block is fixedly connected to the outer wall of the rotating shaft, and a center marker is fixedly connected to one end of the rotating block.

[0015] As can be seen from the above, the rotating machinery vibration measuring device provided by the present invention utilizes a self-positioning measuring component to mechanically clamp and fix the vibration meter through two centering plates and two mounting plates. At the same time, the vibration meter is always centered and clamped by the two centering plates, thereby ensuring that the probe of the vibration meter is always in perpendicular contact with the tangent of the measuring arc surface of the rotating machinery before and after measurement. This avoids the situation where non-perpendicular contact will cause the vibration energy received by the probe to be attenuated or distorted, resulting in a situation where it cannot truly reflect the actual vibration state of the machinery. This ensures the accuracy of measurement and improves the effectiveness of predictive maintenance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a rotating machinery vibration measuring device proposed in this invention;

[0017] Figure 2 This is a schematic diagram of the overall structure of the slide frame of the rotating machinery vibration measuring device proposed in this invention;

[0018] Figure 3 This is a schematic diagram of the overall structure of the self-positioning measurement component and the multi-angle adjustment component of the rotating machinery vibration measuring device proposed in this invention.

[0019] Figure 4 This is an exploded view of the self-positioning measurement component of a rotating machinery vibration measuring device proposed in this invention;

[0020] Figure 5 This is an exploded view of the fixed frame in the self-positioning measurement component of a rotating machinery vibration measuring device proposed in this invention.

[0021] Figure 6 This is a top view of the fixed frame structure in the self-positioning measurement component of a rotating machinery vibration measuring device proposed in this invention;

[0022] Figure 7 This is a schematic diagram of the overall structure of the multi-angle adjustment component of the rotating machinery vibration measuring device proposed in this invention;

[0023] Figure 8 This is an exploded view of the multi-angle adjustment component of a rotating machinery vibration measuring device proposed in this invention.

[0024] In the diagram: 1. Measuring platform; 2. Self-positioning measuring assembly; 201. Vibration meter; 202. Fixed frame; 203. Connecting frame; 204. Fixed frame; 205. Measuring telescopic rod; 206. Fixed motor; 207. Motor frame; 208. Centering rod; 209. Brake gear; 210. Fixed shaft; 211. Rotating shaft; 212. Push-pull plate; 213. Limiting rod; 214. Centering rubber plate; 215. Two-way lead screw; 216. Mounting plate; 217. Safe 218. Rubber plate; 219. Center plate; 220. Disc; 3. Driven gear; 3. Multi-angle adjustment assembly; 301. Drive motor; 302. Sliding block; 303. Support frame; 304. Drive shaft; 305. Adjusting gear; 306. Arc frame; 307. Arc toothed plate; 308. Rotating shaft; 309. Rotating block; 310. U-shaped frame; 311. Shaft marker; 312. Adjusting shaft; 313. Adjusting motor; 4. Slide frame; 5. Lifting cylinder. Detailed Implementation

[0025] 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. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0026] The rotating machinery vibration measuring device disclosed in this invention is mainly used in scenarios where handheld vibration measuring instruments are prone to non-perpendicular contact with curved surfaces during rotating machinery vibration measurement, leading to errors and reduced maintenance effectiveness.

[0027] Reference Figures 1-6 A rotating machinery vibration measuring device includes a measuring platform 1. A slide frame 4 is fixedly connected to the upper side of the measuring platform 1. A lifting cylinder 5 is fixedly connected to the inner wall of the lower end of the slide frame 4. A multi-angle adjustment component 3 is slidably connected inside the slide frame 4. The telescopic end of the lifting cylinder 5 is fixedly connected to the multi-angle adjustment component 3. A self-positioning measuring component 2 is provided at one end of the multi-angle adjustment component 3. The self-positioning measuring component 2 includes a fixed frame 202. A vibration meter 201 is placed inside the fixed frame 202. Multiple slides are opened on both sides of the fixed frame 202. A centering plate 218 is slidably connected inside each pair of opposite slides. A centering rubber plate 214 is fixedly connected to the opposite side of each of the two centering plates 218.

[0028] In this invention, a through hole is provided on one side of the centering plate 218, and a centering rod 208 is fixedly connected inside the two through holes. The two centering rods 208 slide inside the corresponding movable slots on both sides of the fixed frame 202. A through hole is provided on both sides of the fixed frame 202, and a rotating shaft 211 is connected inside the two through holes through bearings. A disc 219 is fixedly connected to the outer wall of the two rotating shafts 211.

[0029] In this invention, two fixed shafts 210 are fixedly connected at equal intervals on the sides of the two disks 219 that are far apart from each other. The outer walls of the two fixed shafts 210 located on the same disk 219 are respectively connected to one end of the push-pull plate 212 through bearings. The other ends of the two push-pull plates 212 located on the same side are respectively connected to the outer wall of one end of the corresponding centering rod 208 through bearings.

[0030] In this invention, a motor frame 207 is fixedly connected to one side of a fixed frame 202, and one end of a rotating shaft 211 passes through one side of the motor frame 207 and is located outside it. A fixed motor 206 is fixedly connected to the other side of the motor frame 207, and the drive end of the fixed motor 206 is connected to one end of one of the rotating shafts 211 through a coupling.

[0031] In this invention, brake gears 209 are fixedly connected to the outer walls of the two rotating shafts 211 respectively, and the two brake gears 209 are located between the corresponding disks 219 and the fixed frame 202 respectively.

[0032] In this invention, multiple clamping holes are equally spaced on both sides of the fixed frame 202. Limiting rods 213 are slidably connected inside the multiple clamping holes. The same mounting plate 216 is fixedly connected to one end of the multiple limiting rods 213 on the same side inside the fixed frame 202. Mounting rubber plates 217 are fixedly connected to the opposite sides of the two mounting plates 216.

[0033] In this invention, two mounting holes are respectively opened on both sides of the fixed frame 202. A bidirectional lead screw 215 is connected to each pair of opposite mounting holes through bearings. One end of each of the two mounting plates 216 is sleeved on the outer wall of the two bidirectional lead screws 215. Driven gears 220 are fixedly connected to the outer walls of the two bidirectional lead screws 215 located outside the fixed frame 202. Multiple driven gears 220 mesh with corresponding brake gears 209. A connecting frame 203 is fixedly connected to the outer wall of the fixed frame 202. A fixed frame 204 is provided on the side of the connecting frame 203 away from the fixed frame 202. A measuring telescopic rod 205 is fixedly connected to the inner wall of the fixed frame 204. The telescopic end of the measuring telescopic rod 205 passes through the fixed frame 204 and is fixedly connected to the connecting frame 203.

[0034] Specifically, before measurement, the tail of the vibration meter 201 is first placed directly inside the fixed frame 202 in the self-positioning measurement assembly 2. Then, by turning on the fixed motor 206, one of the rotating shafts 211 is rotated. During this process, the brake gear 209 fixed on one of the rotating shafts 211 rotates, thereby driving the two driven gears 220 close to the brake gear 209 to rotate. Through the two bidirectional lead screws 215, the other two driven gears 220 drive the other brake gear 209 to rotate, so that the two brake gears 209 rotate at the same speed. During the rotation of the two bidirectional lead screws 215, the two mounting plates 216 move relative to each other and initially clamp and fix the vibration meter 201. Then, during the rotation of the two rotating shafts 211, the two push-pull plates 212 on each disc 219 simultaneously pull the corresponding centering rod 208 relative to each other, so that the two centering plates 218 perform the final centering and positioning clamping of the vibration meter 201.

[0035] In specific application scenarios, the two centering plates 218 provide final centering and positioning clamping for the vibration meter 201, ensuring that the probe of the vibration meter 201 is always in perpendicular contact with the tangent of the measuring arc surface of the rotating machinery before and after measurement. This avoids attenuation or distortion of the vibration energy received by the probe due to non-perpendicular contact, preventing the measurement from accurately reflecting the actual vibration state of the machinery. This ensures measurement accuracy while improving the effectiveness of predictive maintenance. The two centering rubber plates 214 and the two mounting rubber plates 217 better adapt to the surface of the vibration meter 201, improving stability during measurement. During measurement, the measuring telescopic rod 205 can push the vibration meter 201 into contact with the rotating machinery, thereby ensuring the stability of the contact force between the vibration meter 201 and the rotating machinery and improving the accuracy of the measurement results.

[0036] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 8 In a preferred embodiment, the multi-angle adjustment component 3 includes a sliding block 302, which slides inside the slide rail frame 4. A circular hole is provided on one side of the sliding block 302, and an adjustment shaft 312 is connected inside the circular hole via a bearing. A drive motor 301 is fixedly connected to the other side of the sliding block 302. The drive end of the drive motor 301 is connected to one end of the adjustment shaft 312 via a coupling. A support frame 303 is fixedly connected to the other end of the adjustment shaft 312.

[0037] In this invention, an arc-shaped frame 306 is fixedly connected to one end of the support frame 303 away from the sliding block 302. Limiting slots are provided on both sides of the arc-shaped frame 306. The same arc-shaped toothed plate 307 is slidably connected inside the two limiting slots. The fixing frame 204 is fixedly connected to the inner wall of the arc-shaped toothed plate 307. An adjustment hole is provided on one side of the support frame 303. A drive shaft 304 is connected inside the adjustment hole through a bearing. An adjustment motor 313 is fixedly connected to the other side of the support frame 303. The drive end of the adjustment motor 313 is connected to one end of the drive shaft 304 through a coupling. An adjustment gear 305 is fixedly connected to the outer wall of the drive shaft 304 inside the support frame 303. The adjustment gear 305 passes through the opening on the outer wall of the arc-shaped frame 306 and meshes with the arc-shaped toothed plate 307.

[0038] In this invention, a U-shaped frame 310 is fixedly connected to one side of the arc frame 306, and a rotating shaft 308 is connected to the inner wall of the opening of the U-shaped frame 310 through a bearing. A rotating block 309 is fixedly connected to the outer wall of the rotating shaft 308, and a center marker rod 311 is fixedly connected to one end of the rotating block 309.

[0039] Specifically, in use, first place the rotating machinery to be measured on the measuring table 1, then turn on the lifting cylinder 5, and adjust the axis marker 311 in the multi-angle adjustment component 3 to be perpendicular to the axis of the measuring surface of the rotating machinery. Then adjust the position of the rotating machinery until the axis of the measuring surface of the rotating machinery and the head end of the axis marker 311 are on the same horizontal line.

[0040] In specific application scenarios, the position of the rotating machinery is adjusted by the axis marker 311, which facilitates the subsequent self-positioning measurement component 2 to use the axis of the rotating machinery as the center point and adjust the position and angle of the measuring surface of the rotating machinery according to the required parameters around this circular point, thereby improving measurement efficiency. Specifically, the drive motor 301 can be turned on to make the adjustment shaft 312 drive the arc frame 306 to switch between horizontal and vertical orientations, thereby meeting the measurement needs of both vertical and horizontal rotating machinery, improving the adaptability and flexibility of the measurement. During measurement, the drive shaft 304 can be turned on by the adjustment motor 313 to rotate the adjustment gear 305, thereby causing the arc toothed plate 307 to drive the self-positioning measurement component 2 to rotate around the arc surface of the rotating machinery, thereby meeting the measurement needs of different positions, improving the multiplicity of measurement results, and reducing errors.

[0041] Working principle: In use, the rotating machinery to be measured is first placed on the measuring table 1. Then, the lifting cylinder 5 is turned on to adjust the axis marker 311 in the multi-angle adjustment component 3 to be perpendicular to the axis of the measuring surface of the rotating machinery. Then, the position of the rotating machinery is adjusted until the axis of the measuring surface of the rotating machinery and the head of the axis marker 311 are on the same horizontal line. During this process, the position of the rotating machinery is adjusted by the axis marker 311, so that the self-positioning measurement component 2 can use the axis of the rotating machinery as the center point and adjust the position angle of the measuring surface of the rotating machinery according to the required circle point, thereby improving the measurement efficiency. The drive motor 301 can be turned on to make the adjustment shaft 312 drive the arc frame 306 to switch between horizontal and vertical, thereby meeting the measurement of vertical and horizontal rotating machinery, improving the adaptability and flexibility of the measurement.

[0042] Before measurement, the tail of the vibration meter 201 is first placed directly inside the fixed frame 202 of the self-positioning measurement assembly 2. Then, by turning on the fixed motor 206, one of the rotating shafts 211 is rotated. During this process, the brake gear 209 fixed on one of the rotating shafts 211 rotates, thereby driving the two driven gears 220 close to the brake gear 209 to rotate. Through two bidirectional lead screws 215, the other two driven gears 220 drive the other brake gear 209 to rotate, so that the two brake gears 209 rotate at the same speed. During the rotation of the two bidirectional lead screws 215, the two mounting plates 216 move relative to each other and initially clamp and fix the vibration meter 201. Subsequently... During the rotation of the two rotating shafts 211, the two push-pull plates 212 on each disk 219 simultaneously pull the corresponding centering rod 208, thereby enabling the two centering plates 218 to perform final centering and positioning clamping of the vibration meter 201. This ensures that the probe of the vibration meter 201 is always in perpendicular contact with the tangent of the measuring arc surface of the rotating machinery before and after measurement, avoiding the attenuation or distortion of the vibration energy received by the probe due to non-perpendicular contact, which would result in a situation where the actual vibration state of the machinery cannot be accurately reflected. This ensures the accuracy of the measurement while improving the effectiveness of predictive maintenance. In particular, the two centering rubber plates 214 and the two mounting rubber plates 217 can better adapt to the surface of the vibration meter 201, improving the stability during measurement.

[0043] During measurement, the vibration meter 201 can be pushed to contact the rotating machinery by the telescopic rod 205, thereby ensuring the stability of the contact force between the vibration meter 201 and the rotating machinery and improving the accuracy of the measurement results. At the same time, the drive shaft 304 can be driven by the adjustment motor 313 to rotate the adjustment gear 305, thereby causing the arc-shaped toothed plate 307 to drive the self-positioning measurement component 2 to rotate around the arc-shaped surface of the rotating machinery, thus satisfying the measurement at different positions, improving the multiplicity of measurement results and reducing errors.

[0044] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A rotating machinery vibration measuring device, comprising a measuring table (1), characterized in that, The upper side of the measuring platform (1) is fixedly connected to a slide frame (4), and the lower inner wall of the slide frame (4) is fixedly connected to a lifting cylinder (5). The slide frame (4) is slidably connected to a multi-angle adjustment component (3). The telescopic end of the lifting cylinder (5) is fixedly connected to the multi-angle adjustment component (3). One end of the multi-angle adjustment component (3) is provided with a self-positioning measurement component (2). The self-positioning measurement component (2) includes a fixed frame (202). A vibration meter (201) is placed inside the fixed frame (202). Multiple slides are opened on both sides of the fixed frame (202). A centering plate (218) is slidably connected inside each pair of opposite slides. A centering rubber plate (214) is fixedly connected to the opposite side of the two centering plates (218). The fixed frame (202) has multiple clamping holes at equal intervals on both sides. Limiting rods (213) are slidably connected inside the multiple clamping holes. The same mounting plate (216) is fixedly connected to one end of the multiple limiting rods (213) on the same side inside the fixed frame (202). Mounting rubber plates (217) are fixedly connected to the opposite sides of the two mounting plates (216). The fixed frame (202) has two mounting holes on each side. Each pair of opposite mounting holes is connected to a double-acting screw (215) via a bearing. One end of each of the two mounting plates (216) is fitted onto the outer wall of the two double-acting screws (215). Driven gears (220) are fixedly connected to the outer walls of the two double-acting screws (215) located outside the fixed frame (202). Multiple driven gears (220) mesh with corresponding brake gears (209). A connecting frame (203) is fixedly connected to the outer wall of the fixed frame (202). A fixed frame (204) is provided on the side of the connecting frame (203) away from the fixed frame (202). A measuring telescopic rod (205) is fixedly connected to the inner wall of the fixed frame (204). The telescopic end of the measuring telescopic rod (205) passes through the fixed frame (204) and is fixedly connected to the connecting frame (203).

2. The rotating machinery vibration measuring device according to claim 1, characterized in that, The centering plate (218) has through holes on one side, and centering rods (208) are fixedly connected inside the two through holes. The two centering rods (208) slide inside the corresponding movable slots on both sides of the fixed frame (202). The fixed frame (202) has through holes on both sides, and rotating shafts (211) are connected inside the two through holes through bearings. The outer walls of the two rotating shafts (211) are fixedly connected to discs (219).

3. The rotating machinery vibration measuring device according to claim 2, characterized in that, Two fixed shafts (210) are fixedly connected at equal intervals on the side of the two disks (219) that are far apart from each other. The outer walls of the two fixed shafts (210) on the same disk (219) are respectively connected to one end of the push-pull plate (212) through bearings. The other ends of the two push-pull plates (212) on the same side are respectively connected to the outer wall of one end of the corresponding centering rod (208) through bearings.

4. The rotating machinery vibration measuring device according to claim 3, characterized in that, A motor frame (207) is fixedly connected to one side of the fixed frame (202), and one end of a rotating shaft (211) passes through one side of the motor frame (207) and is located outside it. A fixed motor (206) is fixedly connected to the other side of the motor frame (207), and the drive end of the fixed motor (206) is connected to one end of one of the rotating shafts (211) through a coupling.

5. The rotating machinery vibration measuring device according to claim 4, characterized in that, Brake gears (209) are fixedly connected to the outer walls of the two rotating shafts (211), and the two brake gears (209) are located between the corresponding disks (219) and the fixed frame (202).

6. The rotating machinery vibration measuring device according to claim 1, characterized in that, The multi-angle adjustment component (3) includes a sliding block (302), which slides inside the slide frame (4). A circular hole is provided on one side of the sliding block (302), and an adjustment shaft (312) is connected inside the circular hole through a bearing. A drive motor (301) is fixedly connected to the other side of the sliding block (302). The drive end of the drive motor (301) is connected to one end of the adjustment shaft (312) through a coupling. A support frame (303) is fixedly connected to the other end of the adjustment shaft (312).

7. The rotating machinery vibration measuring device according to claim 6, characterized in that, The support frame (303) is fixedly connected to an arc-shaped frame (306) at one end away from the sliding block (302). Limiting slots are opened on both sides of the arc-shaped frame (306). The same arc-shaped toothed plate (307) is slidably connected inside the two limiting slots. The fixed frame (204) is fixedly connected to the inner wall of the arc-shaped toothed plate (307). An adjustment hole is opened on one side of the support frame (303). A drive shaft (304) is connected inside the adjustment hole through a bearing. An adjustment motor (313) is fixedly connected to the other side of the support frame (303). The drive end of the adjustment motor (313) is connected to one end of the drive shaft (304) through a coupling. An adjustment gear (305) is fixedly connected to the outer wall of the drive shaft (304) inside the support frame (303). The adjustment gear (305) passes through the opening of the outer wall of the arc-shaped frame (306) and meshes with the arc-shaped toothed plate (307).

8. The rotating machinery vibration measuring device according to claim 7, characterized in that, A U-shaped frame (310) is fixedly connected to one side of the arc frame (306). A rotating shaft (308) is connected to the inner wall of the opening of the U-shaped frame (310) through a bearing. A rotating block (309) is fixedly connected to the outer wall of the rotating shaft (308). A center marker (311) is fixedly connected to one end of the rotating block (309).

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