Ball bearing vibration noise detector

Abstract

The utility model provides a ball bearing vibration noise detector, and relates to the technical field of bearing detection. Four sets of instrument frames are arranged above the instrument base, a display screen is arranged at the position, between the two sets of instrument frames on the front side, of the instrument base, a driving motor is arranged on the upper side of the interior of the instrument base, the upper end of the driving motor is connected with a driving shaft, the upper end of the driving shaft is connected with a shaft rod, and a positioning plate is arranged above the shaft rod. A positioning plate is arranged on the instrument frame, an adjusting plate is arranged above the positioning plate, four groups of adjusting hydraulic rods are arranged above the adjusting plate, fixing rods are connected above the adjusting hydraulic rods, and the fixing rods are fixed on the instrument frame. The problem that existing equipment lacks a structure for isolating external noise is solved.

Description

Technical Field

[0001] This utility model belongs to the field of bearing testing technology, and more specifically, it relates to a ball bearing vibration and noise detector. Background Technology

[0002] Ball bearings, also known as rolling bearings, belong to the category of rolling bearings. Their core characteristic is the use of spherical rolling elements (balls) to reduce friction generated during mechanical transmission, thereby supporting the rotating shaft and bearing the corresponding load. Vibration and noise detection plays a central and crucial role in bearing quality control, fault prediction, performance optimization, and maintenance management. By comprehensively analyzing vibration velocity, acceleration, and spectrum, the type of defect can be accurately determined, such as steel ball surface damage and assembly errors, thus enabling full lifecycle control of ball bearings from manufacturing to operation and maintenance. For critical equipment, it is recommended to combine vibration monitoring with other technologies (such as acoustic emission technology) to improve diagnostic accuracy. However, it is worrying that some ball bearing vibration and noise detectors are not equipped with structures that can isolate external noise when conducting noise detection work. As a result, ambient noise may adversely affect the test results. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a ball bearing vibration and noise detector to solve the problem that existing equipment lacks a structure to isolate external noise.

[0004] This utility model ball bearing vibration and noise detector is achieved through the following specific technical means:

[0005] A ball bearing vibration and noise detector includes: an instrument base; four sets of instrument frames are arranged on top of the instrument base; a display screen is provided on the instrument base between the two sets of instrument frames on the front side; a drive motor is installed on the upper side inside the instrument base; the upper end of the drive motor is connected to the drive shaft; the upper end of the drive shaft is connected to the shaft rod; a positioning plate is provided above the shaft rod; an adjustment plate is provided above the positioning plate; four sets of adjusting hydraulic rods are provided above the adjustment plate; a fixing rod is connected above the adjusting hydraulic rods; and the fixing rod is fixed to the instrument frame.

[0006] Furthermore, the lower end of the shaft is provided with a cross-shaped locking rod, the upper end of the drive shaft is provided with a matching cross-shaped locking groove, a surrounding plate is provided around the lower end of the shaft, and through holes are provided at both the lower end of the shaft and the upper end of the drive shaft. The fixing screw passes through the through hole, and a fixing nut is provided at the end of the fixing screw.

[0007] Furthermore, the positioning plate is in the form of an arc-shaped plate, and there are four sets of them. Two opposing sets of positioning plates are divided into one group. The two positioning plates in this group are connected by a positioning hydraulic rod. A cross sliding groove is opened on the lower side of the adjusting plate, and the positioning hydraulic rod is placed inside the cross sliding groove.

[0008] Furthermore, a soundproof cover is provided in the middle of the instrument frame, and an insertion port is provided at the edge of the soundproof cover. An insertion slot is provided at the corresponding position of the instrument frame and the instrument base. The soundproof side plate can be inserted into the insertion slot through the insertion port. A movable frame is provided above the soundproof side plate, and a sealing strip is provided inside the insertion slot at its edge.

[0009] Furthermore, detection devices are provided at the middle positions of the inner corners of the instrument frame, and the number of detection devices is four sets.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. This utility model, by setting a locking rod, a surrounding plate and fixing bolts, not only ensures that the shaft is firmly fixed, but also has the advantage of facilitating the replacement of shafts of different diameters, thereby enabling vibration and noise testing of ball bearings with different inner diameters.

[0012] 2. This utility model, by setting up positioning plates and positioning hydraulic rods, and by adjusting the distance between the positioning plates, helps the instrument to perform vibration and noise detection work on ball bearings with different outer diameters.

[0013] 3. By setting a soundproof cover plate, a soundproof side plate and a sealing strip, this utility model can isolate external interference noise as much as possible, which helps to improve the accuracy of test data. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0016] Figure 3 This is an exploded structural diagram of the present invention.

[0017] Figure 4 This is a schematic diagram of the soundproof side panel connection structure of this utility model.

[0018] Figure 5 This utility model is made by Figure 4 A schematic diagram of the enlarged structure of part A.

[0019] Figure 6 This is a schematic diagram of the sound insulation side panel structure of this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Instrument base; 101. Instrument frame;

[0022] 2. Display screen;

[0023] 3. Soundproof cover;

[0024] 4. Soundproof side panels; 401. Movable frame;

[0025] 5. Drive motor;

[0026] 6. Drive shaft;

[0027] 7. Shaft; 701. Locking rod; 702. Enclosure plate;

[0028] 8. Fixing screw; 801. Fixing nut;

[0029] 9. Positioning plate;

[0030] 10. Positioning hydraulic rod;

[0031] 11. Adjusting plate; 1101. Sliding groove;

[0032] 12. Adjusting hydraulic rod; 1201. Fixing rod;

[0033] 13. Detection device;

[0034] 14. Sealing strip. Detailed Implementation

[0035] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0036] Example: As attached Figure 1 To be continued Figure 6 As shown:

[0037] This utility model provides a ball bearing vibration and noise detector, including: an instrument base 1; four sets of instrument frames 101 are arranged on the top of the instrument base 1, a display screen 2 is provided on the instrument base 1 between the two sets of instrument frames 101 on the front side, a drive motor 5 is arranged on the upper side inside the instrument base 1, the upper end of the drive motor 5 is connected to the drive shaft 6, the upper end of the drive shaft 6 is connected to the shaft rod 7, a positioning plate 9 is provided on the shaft rod 7, an adjustment plate 11 is provided on the positioning plate 9, and four sets of adjusting hydraulic rods 12 are provided on the adjustment plate 11. A fixing rod 1201 is connected on the upper part of the adjusting hydraulic rods 12 and fixed on the instrument frame 101. A detection device 13 is provided at the middle position of the inner corner of the instrument frame 101, and the number of detection devices 13 is four.

[0038] Among them, such as Figure 2 and Figure 3 As shown, a cross-shaped locking rod 701 is provided at the lower end of the shaft 7, and a matching cross-shaped locking groove is provided at the upper end of the drive shaft 6. A surrounding plate 702 is provided around the lower end of the shaft 7. Through holes are provided at the lower end of the shaft 7 and the upper end of the drive shaft 6. The fixing screw 8 passes through the through hole, and a fixing nut 801 is provided at the end of the fixing screw 8. Its structure ensures that the shaft 7 can be firmly fixed, and also has the advantage of facilitating the replacement of shafts 7 with different diameters. Thus, vibration and noise testing can be carried out for ball bearings with different inner diameters.

[0039] Among them, as shown in the figure Figure 2 and Figure 3 As shown, the positioning plate 9 is in the form of an arc plate, and there are four sets of them. The two sets of positioning plates 9 facing each other are divided into one group. The two positioning plates 9 in this group are connected by the positioning hydraulic rod 10. The lower side of the adjusting plate 11 is provided with a cross sliding groove 1101, and the positioning hydraulic rod 10 is placed inside the cross sliding groove 1101. By adjusting the distance between the positioning plates 9, the instrument can perform vibration and noise detection work for ball bearings with different outer diameters.

[0040] Among them, such as Figures 4 to 6 As shown, a soundproof cover plate 3 is provided in the middle of the instrument frame 101. An insertion port is provided at the edge of the soundproof cover plate 3. An insertion slot is provided at the corresponding position of the instrument frame 101 and the instrument base 1. The soundproof side plate 4 can be inserted into the insertion slot through the insertion port. A movable frame 401 is provided above the soundproof side plate 4. A sealing strip 14 is provided inside the insertion slot at its edge to isolate external interference noise as much as possible, which helps to improve the accuracy of the test data.

[0041] The specific usage and function of this embodiment are as follows:

[0042] In this utility model, the sound insulation side plate 4 is pulled out, the fixing bolt 8 is unscrewed, the shaft 7 of the corresponding diameter is replaced, the ball bearing to be tested is fixed on the shaft 7, the locking rod 701 on the lower side of the shaft 7 is inserted into the locking groove, the fixing bolt 8 passes through the through hole, the fixing nut 801 is tightened, the shaft 7 is fixed, the control adjustment hydraulic rod 12 is extended, the positioning plate 9 is lowered to a certain position, the control positioning hydraulic rod 10 is retracted, so that the outer ring of the hoop ball bearing is inserted, the sound insulation side plate 4 is inserted into the insertion groove, the drive motor 5 is turned on, the detection device 13 detects the internal noise, and the display screen 2 will display the detection value.

[0043] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

Claims

1. Ball bearing vibration and noise detector, including: Instrument base (1); characterized in that: four sets of instrument frames (101) are arranged above the instrument base (1), a display screen (2) is provided on the instrument base (1) between the two sets of instrument frames (101) on the front side, a drive motor (5) is arranged on the upper side inside the instrument base (1), the upper end of the drive motor (5) is connected to the drive shaft (6), the upper end of the drive shaft (6) is connected to the shaft (7), a positioning plate (9) is provided above the shaft (7), an adjustment plate (11) is provided above the positioning plate (9), and four sets of adjustment hydraulic pressure are provided above the adjustment plate (11). The upper part of the adjusting hydraulic rod (12) is connected to the fixing rod (1201), and the fixing rod (1201) is fixed on the instrument frame (101). The instrument frame (101) is provided with a soundproof cover plate (3) in the middle position. An insertion port is provided at the edge of the soundproof cover plate (3). An insertion slot is provided at the corresponding position of the instrument frame (101) and the instrument base (1). The soundproof side plate (4) can be inserted into the insertion slot through the insertion port. A movable frame (401) is provided above the soundproof side plate (4), and a sealing strip (14) is provided inside the insertion slot at its edge.

2. The ball bearing vibration and noise detector as described in claim 1, characterized in that: The lower end of the shaft (7) is provided with a cross-shaped locking rod (701), the upper end of the drive shaft (6) is provided with a matching cross-shaped locking groove, and a surrounding plate (702) is provided around the lower end of the shaft (7). Both the lower end of the shaft (7) and the upper end of the drive shaft (6) are provided with through holes, through which the fixing screw (8) passes. A fixing nut (801) is provided at the end of the fixing screw (8).

3. The ball bearing vibration and noise detector as described in claim 1, characterized in that: The positioning plate (9) is in the form of an arc plate, and there are four sets of them. Two sets of positioning plates (9) are divided into one group. The two positioning plates (9) in this group are connected by a positioning hydraulic rod (10). A cross sliding groove (1101) is provided on the lower side of the adjusting plate (11), and the positioning hydraulic rod (10) is placed inside the cross sliding groove (1101).

4. The ball bearing vibration and noise detector as described in claim 1, characterized in that: The instrument frame (101) has four sets of detection devices (13) at the middle position of the inner corner.

Images