Vibration device for fault judgment of rolling bearing

Abstract

The utility model relates to the technical field of bearing detection, in particular to a vibration device for fault judgment of a rolling bearing. According to the technical scheme, a set of vertical plates are fixedly connected to a bottom plate, a set of holes are formed in the two vertical plates, fixing devices used for clamping and fixing a transverse shaft are arranged on the two vertical plates, the transverse shaft is connected to a rolling bearing needing to be detected in a sleeving mode, mounting grooves are formed in the fixing devices, and detection devices used for judging faults are arranged on the mounting grooves. When the driving shaft installed on the rolling bearing rotates at a high speed between the clamping blocks, the clamping block, the extending plate and the limiting block are driven to vibrate, the vibration sensor can vibrate, mechanical vibration energy transmitted by the transverse shaft is converted into mechanical, optical or electric signals through the vibration sensor, and the mechanical, optical or electric signals are transmitted to the rolling bearing. And a voltage signal transmitted from the transverse shaft is input to the display through the voltage amplifier according to a measurement requirement, so that whether the rolling bearing has a fault or not is judged according to a numerical value on the display, and a detection effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of bearing testing technology, and in particular to a vibration device for diagnosing rolling bearing faults. Background Art

[0002] Rolling bearings are precision mechanical components that convert the sliding friction between a rotating shaft and its housing into rolling friction, thereby reducing frictional losses.

[0003] Rolling bearings generally consist of four parts: an inner ring, an outer ring, rolling elements, and a cage. The inner ring mates with the shaft and rotates with it. The outer ring mates with the bearing housing and provides support. The rolling elements are evenly distributed between the inner and outer rings by the cage. Their shape, size, and number directly affect the performance and lifespan of the rolling bearing.

[0004] Even if rolling bearings are well lubricated, correctly installed, dustproof and moisture-proof, and operate normally, they will eventually fail due to fatigue of the rolling contact surfaces. Therefore, they need to be inspected and replaced regularly. In order to detect the operating condition of rolling bearings, the vibration of the drive shaft sleeved on the rolling bearing during operation can be detected to determine whether the rolling bearing is faulty. When the tested bearing is not faulty, lubricant can be injected into the bearing during the test to increase the lubrication effect. Therefore, this application proposes a vibration device for diagnosing rolling bearing faults. Utility Model Content

[0005] The purpose of this invention is to address the problem in the background art that rolling bearings fail due to fatigue of the rolling contact surface, thus requiring regular inspection, and to propose a vibration device for judging rolling bearing failure.

[0006] The technical solution of this utility model is: a vibration device for judging rolling bearing faults, including a base plate 1 and a vertical plate 2. The vertical plate 2 is provided with a fixing device 3 for clamping and fixing the outer ring of the rolling bearing. The fixing device 3 is provided with a lubrication injection device. The fixing device 3 is provided with a detachable detection device 4 for judging faults.

[0007] Optionally, a set of vertical plates 2 are fixedly connected to the base plate 1. A set of mounting holes are provided on the two vertical plates 2. A baffle 201 is installed on the vertical plates 2. The two fixing devices include clamping blocks. One side of the clamping block is arc-shaped. A set of limiting posts are fixedly installed on the two clamping blocks. The four limiting posts are fitted into the holes on the vertical plates. Compression springs are sleeved on the outer circumferential surface of the four limiting posts. One end of the four compression springs is in contact with the vertical plate, and the other end of the four compression springs is in contact with the clamping blocks. T-shaped slots are provided on the two clamping blocks.

[0008] Optionally, the two clamping blocks are provided with injection ports and liquid outlets, and the side of the two clamping blocks located at the liquid outlets is provided with transverse grooves.

[0009] Optionally, the detection device includes a locking block that fits into a T-shaped slot. An extension plate is fixedly connected to the locking block, and a limit block is fixedly connected to the extension plate. The limit block has an installation groove, in which a vibration sensor is installed.

[0010] Optionally, a voltage amplifier is fixedly mounted on the base plate by bolts, and the voltage amplifier is connected to the vibration sensor via wiring.

[0011] Optionally, a monitor can be mounted on the base plate, and the monitor is connected to the voltage amplifier via wiring.

[0012] Optionally, the clamping block clamps and fixes the outer ring of the bearing.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] By adding lubricant through the injection port and then through the outlet and transverse groove, the lubricant is evenly spread between the clamping block and the transverse shaft of the rolling bearing to be tested, thus achieving a lubrication effect and reducing the influence of the clamping block on the test. When the drive shaft mounted on the rolling bearing rotates at high speed between the clamping blocks, it will cause the locking block, extension plate, and limit block to vibrate, which will vibrate the sensor. The vibration sensor converts the mechanical vibration energy transmitted from the transverse shaft into mechanical, optical, or electrical signals. The voltage signal transmitted from the transverse shaft is then amplified and input to the display according to the measurement requirements. Based on the value displayed, the presence of a fault in the rolling bearing can be determined, thereby achieving the detection function. Attached Figure Description

[0015] Figure 1 A schematic diagram of an overall embodiment of the present invention is provided;

[0016] Figure 2 This is a schematic diagram of the fixing device;

[0017] Figure 3 This is a schematic diagram of the fixing device;

[0018] Figure 4 This is a schematic diagram of the detection device.

[0019] Reference numerals: 1. Base plate; 2. Vertical plate; 201. Baffle; 3. Fixing device; 301. Clamping block; 302. Limiting post; 303. Compression spring; 304. Injection port; 305. T-shaped slot; 306. Outlet port; 307. Horizontal groove; 4. Detection device; 401. Engaging block; 402. Extension plate; 403. Limiting block; 404. Vibration sensor; 5. Voltage amplifier; 6. Display; 7. Bearing outer ring. DETAILED DESCRIPTION

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0021] like Figure 1 As shown, the vibration device for judging rolling bearing faults proposed in this utility model has a base plate 1 and a vertical plate 2. The vertical plate 2 is provided with a fixing device 3 for clamping and fixing the outer ring of the rolling bearing. The fixing device 3 is provided with a lubrication injection device. The fixing device 3 is provided with a detachable detection device 4 for judging faults.

[0022] like Figure 1-3 As shown, a set of vertical plates 2 are fixedly connected to the base plate 1. A set of mounting holes are provided on the two vertical plates 2. A baffle 201 is installed on the vertical plates 2. The baffle 201 can prevent lubricant from falling into the instrument at the bottom. The two fixing devices 3 include clamping blocks 301. One side of the clamping block 301 is arc-shaped. A set of limiting posts 302 are fixedly installed on the two clamping blocks 301. The four limiting posts 302 are fitted into the holes on the vertical plates 2. Compression springs 303 are sleeved on the outer circumferential surface of the four limiting posts 302. One end of the four compression springs 303 is in contact with the vertical plates 2. The other end of the four compression springs 303 is in contact with the clamping blocks 301. T-shaped slots 305 are provided on the two clamping blocks 301. The elastic force on the compression springs 303 is applied to the clamping blocks 301 under the action of the limiting posts 302, thereby causing the clamping blocks 301 to generate clamping force, which is used to clamp the outer ring of the fixed bearing.

[0023] like Figure 1-3 As shown, two clamping blocks 301 are provided with injection ports 304 and liquid outlets 306. A transverse groove 307 is provided on the side of the two clamping blocks 301 located at the liquid outlet 306. During the inspection process, when the inspected bearing is not faulty, lubricant can be added through the injection ports 304 and then applied to the bearing clamped and fixed by the clamping blocks 301 through the liquid outlets 306 and the transverse grooves 307, thereby improving the lubrication effect of the bearing.

[0024] like Figure 4As shown, the detection device 4 includes a locking block 401, which fits into a T-shaped slot 305. An extension plate 402 is fixedly connected to the locking block 401, and a limit block 403 is fixedly connected to the extension plate 402. The limit block 403 has an installation groove, in which a vibration sensor 404 is installed. The vibration sensor 404 is a CM-01B model. When the bearing rotates at high speed between the clamping blocks 301, it will cause the locking block 401, the extension plate 402, and the limit block 403 to vibrate, thereby vibrating the sensor 404. The vibration sensor 404 detects the bearing... The received mechanical vibration energy is converted into mechanical, optical, or electrical signals. A voltage amplifier 5, model EftSkKBD, is fixedly mounted on the base plate 1 by bolts. The voltage amplifier 5 is connected to the vibration sensor 404 via a circuit. A display 6 is also mounted on the base plate 1. The display 6 is connected to the voltage amplifier 5 via a circuit. The voltage signal transmitted from the vibration sensor 404 is input to the display 6 through the voltage amplifier 5 according to the measurement requirements. The value displayed on the display 6 is used to determine whether there is a fault in the rolling bearing, thereby achieving the detection function.

[0025] In this embodiment, the elastic force on the compression spring 303, under the action of the limiting post 302, acts on the clamping block 301, thereby causing the clamping block 301 to generate a clamping force, which is used to clamp and fix the outer ring of the bearing. When the tested bearing is not faulty, lubricant can be added through the injection port 304 and applied to the bearing clamped and fixed by the clamping block 301 through the outlet port 306 and the transverse groove 307, thereby improving the lubrication effect of the bearing. When the rolling bearing rotates at high speed between the clamping blocks 301, it will cause the locking block 401, the extension plate 402 and the limiting block 403 to vibrate, which will vibrate the sensor 404. The vibration sensor 404 converts the mechanical vibration energy transmitted from the transverse shaft into mechanical, optical or electrical signals. The voltage signal transmitted from the transverse shaft is input to the display 6 through the voltage amplifier 5 according to the measurement requirements, thereby judging whether the rolling bearing is faulty based on the value on the display 6, thus achieving the detection function.

[0026] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A vibration device for diagnosing rolling bearing faults, comprising a base plate (1) and a vertical plate (2), characterized in that: The vertical plate (2) is provided with a fixing device (3) for clamping and fixing the outer ring of the rolling bearing, and the fixing device (3) is provided with a lubrication injection device; The fixed device (3) is equipped with a detachable fault detection device (4).

2. The vibration device for diagnosing rolling bearing faults according to claim 1, characterized in that, A set of vertical plates (2) are fixedly connected to the base plate (1). A set of mounting holes are provided on the two vertical plates (2). A baffle (201) is installed on the vertical plate (2). The two fixing devices (3) include clamping blocks (301). One side of the clamping block (301) is arc-shaped. A set of limiting posts (302) is fixedly installed on the two clamping blocks (301). The four limiting posts (302) are fitted into the holes on the vertical plates (2). Compression springs (303) are sleeved on the outer peripheral surface of the four limiting posts (302). One end of the four compression springs (303) is in contact with the vertical plate (2). The other end of the four compression springs (303) is in contact with the clamping blocks (301). T-shaped slots (305) are provided on the two clamping blocks (301).

3. The vibration device for diagnosing rolling bearing faults according to claim 2, characterized in that, The two clamping blocks (301) are provided with injection ports (304), the two clamping blocks (301) are provided with outlet ports (306), and the two clamping blocks (301) are provided with transverse grooves (307) on the side of the outlet ports (306).

4. The vibration device for diagnosing rolling bearing faults according to claim 1, characterized in that, The detection device (4) includes a locking block (401), which is fitted onto a T-shaped slot (305). An extension plate (402) is fixedly connected to the locking block (401), and a limiting block (403) is fixedly connected to the extension plate (402). An installation groove is provided on the limiting block (403), and a vibration sensor (404) is installed in the groove.

5. The vibration device for diagnosing rolling bearing faults according to claim 1, characterized in that, A voltage amplifier (5) is fixedly installed on the base plate (1) by bolts, and the voltage amplifier (5) is connected to the vibration sensor (404) by a circuit.

6. The vibration device for diagnosing rolling bearing faults according to claim 1, characterized in that, A display (6) is installed on the base plate (1), and the display (6) is connected to the voltage amplifier (5) through a line.

7. The vibration device for diagnosing rolling bearing faults according to claim 3, characterized in that, The clamping block (301) clamps and fixes the bearing outer ring (7).

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