Bearing mute tester

Abstract

The utility model belongs to the technical field of bearing testing, and particularly relates to a bearing mute tester, which comprises a machine body, a control display panel is arranged above the front side of the machine body, a measuring seat is fixed in the machine body, a rotary mounting shaft is arranged on the front side of the measuring seat, and the rotary mounting shaft is matched with the inner diameter of a bearing in size. A measuring head is mounted above the front side of the measuring seat, the bottom of the measuring head is in contact with the outer diameter surface of the bearing, a vertical plate is arranged on the front side of the machine body, a sliding rod slidably penetrates through the surface of the vertical plate, the height of the sliding rod is equal to that of the axis of the rotary mounting shaft, and a fixing disc is arranged at the rear end of the sliding rod. Three extension rods are arranged on the surface of the fixed disc, the top bolts can slide along the surfaces of the extension rods, then the distance between the top bolts and the axis is adjusted so as to adapt to mute detection work of bearings of different sizes, and meanwhile it is guaranteed that the three top bolts keep synchronous movement during adjustment so as to guarantee that the distances between the three top bolts and the central axis are consistent.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing testing, and particularly relates to a bearing silent tester. Background Art

[0002] A bearing is an important component in contemporary mechanical equipment. Its main function is to support a mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotational accuracy. Traditional bearings mainly consist of an inner ring, rolling elements, and an outer ring. During movement, the rolling elements roll between the inner and outer rings to convert the sliding friction during mechanical rotation into rolling friction, thereby reducing the friction coefficient and increasing the service life of the components. After the existing bearings are produced, various data need to be detected, and the noise detection of the bearings is one of the criteria for judging the quality of the bearings. Therefore, corresponding silent detection instruments will be used.

[0003] Traditional bearing silent detectors install the bearing on a shaft body that can rotate at high speed and keep the outer ring fixed. Then, the inner ring is rotated at high speed to make the internal rolling elements move at high speed. By detecting the vibration of the outer ring, the noise range can be judged. Therefore, during testing, after the bearing is safely installed, the outer ring of the bearing needs to be limited. In the prior art, three top bolts are used to squeeze and fix the outer ring of the bearing. However, the distance between the three top bolts cannot be adjusted, which results in the need to use supporting equipment for detection when replacing bearings of different sizes, causing inconvenience in use. Summary of the Utility Model

[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a bearing silent tester, which can adjust the positions of the three top bolts to adapt to the detection work of bearings of different sizes and ensure that the distances of the three top bolts from the axis are consistent when adjusted.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A bearing noise tester includes a machine body. Above the front side of the machine body, there is a control display panel. Inside the machine body, a measuring seat is fixed. In front of the measuring seat, there is a rotating mounting shaft adapted to the inner diameter of the bearing. The rotating mounting shaft is a stepped shaft. Above the front side of the measuring seat, a measuring head is installed. The bottom of the measuring head contacts the outer diameter surface of the bearing. On the front side of the machine body, there is a vertical plate. A sliding rod passes through the vertical plate surface. The sliding rod is at the same height as the axis of the rotating mounting shaft. At the rear end of the sliding rod, there is a fixed disk. On the outer surface of the fixed disk, three extension rods are evenly arranged around its center. A chute is provided on the surface of the extension rod. An adjustment block is slidably installed inside the chute. The adjustment block is in an I-shape. At the center of the rear side surface of the adjustment block, there is a top bolt. A buffer pad is provided on the end surface of the top bolt. All three buffer pads contact the side surface of the bearing outer ring.

[0007] Further, at one end of the adjustment block away from the top bolt, mounting plates are symmetrically arranged. Between two mounting plates in the same group, a connecting rod is rotatably installed.

[0008] Further, a sliding sleeve is slidably installed on the surface of the sliding rod. One end of each of the three connecting rods away from the adjustment block is hinged to the sliding sleeve.

[0009] Further, a convex strip is provided on the surface of the sliding rod. A locking bolt is screwed on the upper surface of the sliding sleeve. The locking bolt corresponds to the position of the convex strip.

[0010] Further, convex plates are symmetrically arranged below the front side of the machine body. Between the two convex plates, a control plate is rotatably installed. The control plate is arranged upward. An annular groove is provided at one end of the surface of the sliding rod away from the fixed disk.

[0011] Further, a through groove is provided on the surface of the control plate. The annular groove slides inside the through groove.

[0012] Further, a handle is fixed on the top of the control plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model is provided with three extension rods on the surface of the fixed disk, and enables the top bolt to slide along the surface of the extension rod, thereby adjusting the distance between the top bolt and the axis to adapt to the bearing noise detection work of different sizes. At the same time, it ensures that the three top bolts move synchronously during adjustment to ensure that the distances of the three top bolts from the central axis are the same, so as to improve the stability and practicality during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the installation three-dimensional structure schematic diagram of the present utility model;

[0015] Figure 2 is the installation structure schematic diagram of the adjustment block of the present utility model;

[0016] Figure 3 Schematic diagram of the fixed disk structure of the present utility model;

[0017] Figure 4 Schematic diagram of the adjustment block structure of the present utility model.

[0018] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0019] 1. Machine body; 2. Control display panel; 3. Measuring seat; 4. Measuring head; 5. Rotating mounting shaft; 6. Vertical plate; 7. Convex plate; 8. Control board; 9. Through groove; 10. Handle; 11. Slide bar; 12. Annular groove; 13. Ridge; 14. Fixed disk; 15. Extension rod; 16. Slide groove; 17. Adjustment block; 18. Mounting plate; 19. Top bolt; 20. Buffer pad; 21. Connecting rod; 22. Slide sleeve; 23. Locking bolt. Detailed implementation manners

[0020] In order to make the purpose and advantages of the present utility model clearer, the present utility model will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present utility model, and does not strictly limit the specific protection scope claimed by the present utility model.

[0021] Please refer to Figures 1-4As shown, a bearing silent tester includes a body 1, a control display panel 2 is arranged on the upper front side of the body 1 to calculate and display the data detected by the measuring head 4, and control the rotation and speed of the rotating mounting shaft 5, a measuring seat 3 is fixed inside the body 1, a rotating mounting shaft 5 is arranged on the front side of the measuring seat 3, the rotating mounting shaft 5 is adapted to the inner diameter size of the bearing, so as to drive the inner ring of the bearing to rotate at high speed, the rotating mounting shaft 5 is a stepped shaft to limit the rear side of the bearing, and the front side of the bearing is limited by three top bolts 19 to ensure the stability of the bearing during rotation, a measuring head 4 is installed on the upper front side of the measuring seat 3, the bottom of the measuring head 4 is in contact with the outer diameter surface of the bearing, so as to detect the vibration of the outer ring of the bearing, a vertical plate 6 is arranged on the front side of the body 1, a sliding rod 11 is slidably penetrated through the surface of the vertical plate 6, the sliding rod 11 is at the same height as the axis of the rotating mounting shaft 5, and the sliding rod 11 can be moved along The axis slides back and forth to control the distance between the fixed plate 14 and the bearing to realize the upper and lower bearings. A fixed plate 14 is arranged at the rear end of the slide rod 11. Three extension rods 15 are evenly arranged on the outer surface of the fixed plate 14 with its center as the center of the circle. A slide groove 16 is opened on the surface of the extension rod 15. An adjustment block 17 is slidably installed inside the slide groove 16. The adjustment block 17 is I-shaped so that the adjustment block 17 can only slide along the trajectory of the slide groove 16, and then adjust its distance from the axis of the slide rod 11. A scale value can be set on the extension rod 15 for easy observation and judgment. A top bolt 19 is arranged at the center of the rear side surface of the adjustment block 17. The front side of the bearing is squeezed and limited by the three top bolts 19 to prevent the outer ring of the bearing from rotating. A buffer pad 20 is arranged on the end surface of the top bolt 19. The three buffer pads 20 are in contact with the side surface of the outer ring of the bearing to prevent the outer ring of the bearing from being crushed by excessive extrusion force.

[0022] Please refer to Figures 2-4 As shown, a mounting plate 18 is symmetrically arranged at one end of the adjustment block 17 away from the top bolt 19, a connecting rod 21 is rotatably installed between two mounting plates 18 in the same group, a sliding sleeve 22 is slidably installed on the surface of the sliding rod 11, and the ends of the three connecting rods 21 away from the adjustment block 17 are hinged on the sliding sleeve 22. The connection direction of the connecting rod 21 is to ensure that when the sliding sleeve 22 moves backward, the three adjustment blocks 17 can be simultaneously controlled to move to the side away from the axis to adapt to the detection of large-sized bearings, and vice versa to move toward the center to adapt to the detection of small-sized bearings, thereby improving the flexibility of the equipment when used and ensuring the synchronous movement of the three top bolts 19.

[0023] Please refer to Figure 2 As shown, a convex strip 13 is provided on the surface of the slide rod 11, which can prevent the slide sleeve 22 from rotating and increase the thickness. A locking bolt 23 is screwed on the upper surface of the slide sleeve 22, and the locking bolt 23 corresponds to the position of the convex strip 13. The slide sleeve 22 is fixed by tightening the locking bolt 23.

[0024] Please refer to Figure 1As shown, convex plates 7 are symmetrically arranged at the lower front side of the machine body 1, and a control plate 8 is rotatably installed between the two convex plates 7. The control plate 8 is arranged upward, and an annular groove 12 is provided at the end of the surface of the slide rod 11 away from the fixed plate 14, and a through groove 9 is provided on the surface of the control plate 8. The annular groove 12 slides on the inner side of the through groove 9. A handle 10 is fixed on the top of the control plate 8. The handle 10 can drive the control plate 8 to swing with a certain movement amplitude, thereby driving the slide rod 11 to move back and forth, so as to facilitate loading and unloading.

[0025] The working principle of the utility model is as follows: firstly, the bearing to be tested is mounted on the surface of the rotating mounting shaft 5 to ensure that the inner ring of the bearing is driven to rotate at a high speed by the rotating mounting shaft 5, and the height of the measuring head 4 is adjusted so that the bottom of the measuring head 4 contacts the outer surface of the bearing, and the handle 10 is held by hand to pull the control plate 8 to rotate around the mounting pin at the bottom thereof, and then the slide bar 11 is driven to slide through the cooperation of the through groove 9 and the annular groove 12. When the handle 10 is rotated forward, the slide bar 11 can be driven to slide forward, and vice versa, when the handle 10 is rotated backward, the three buffer pads 20 at the rear end can be used to contact the outer surface of the bearing when the slide bar 11 slides backward. The ring is squeezed and fixed so that the outer ring of the bearing will not rotate, and then the inner and outer rings of the bearing will rotate relative to each other in height to facilitate measurement. The distance between the three top bolts 19 and the axis of the slide rod 11 can be adjusted according to the size of the bearing after use. When the sliding sleeve 22 is pushed to move toward the fixed plate 14, the adjustment block 17 can be mobilized to move outward through the connecting rod 21 to increase the distance to adapt to large-sized bolts, and vice versa to reduce the distance to adapt to small-sized bolts. The I-shaped adjustment block 17 can ensure that it can only slide along the slide groove 16, and it is fixed by the locking bolt 23 to keep the position of the three adjustment blocks 17 stable.

[0026] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A bearing silent tester, comprising a body (1), wherein a control display panel (2) is arranged on the upper front side of the body (1), and characterized in that: A measuring seat (3) is fixed inside the machine body (1), a rotating mounting shaft (5) is arranged on the front side of the measuring seat (3), the rotating mounting shaft (5) is adapted to the inner diameter size of the bearing, the rotating mounting shaft (5) is a stepped shaft, a measuring head (4) is arranged on the upper front side of the measuring seat (3), the bottom of the measuring head (4) is in contact with the outer diameter surface of the bearing, a vertical plate (6) is arranged on the front side of the machine body (1), a sliding rod (11) is slidably penetrated through the surface of the vertical plate (6), the sliding rod (11) is at the same height as the axis of the rotating mounting shaft (5), and the measuring head (4) is arranged on the upper front side of the measuring seat (3). A fixed plate (14) is arranged at the rear end of the slide rod (11), and three extension rods (15) are evenly arranged on the outer surface of the fixed plate (14) with the center of the fixed plate as the center of the circle. A sliding groove (16) is opened on the surface of the extension rod (15), and an adjustment block (17) is slidably installed inside the sliding groove (16). The adjustment block (17) is in an I-shape, and a push bolt (19) is arranged at the center of the rear side surface of the adjustment block (17). A buffer pad (20) is arranged on the end surface of the push bolt (19), and the three buffer pads (20) are all in contact with the side surface of the outer ring of the bearing.

2. A bearing silent tester according to claim 1, characterized in that: A mounting plate (18) is symmetrically arranged at one end of the adjustment block (17) away from the top bolt (19), and a connecting rod (21) is rotatably mounted between two mounting plates (18) in the same group.

3. A bearing silent tester according to claim 2, characterized in that: A sliding sleeve (22) is slidably mounted on the surface of the sliding rod (11), and one end of the three connecting rods (21) away from the adjustment block (17) is hinged on the sliding sleeve (22).

4. A bearing silent tester according to claim 3, characterized in that: The surface of the slide rod (11) is provided with a convex strip (13), and the upper surface of the slide sleeve (22) is screwed with a locking bolt (23), and the locking bolt (23) corresponds to the position of the convex strip (13).

5. The bearing silent tester according to claim 1, characterized in that: A convex plate (7) is symmetrically arranged at the lower front side of the machine body (1), a control plate (8) is rotatably installed between the two convex plates (7), and the control plate (8) is arranged upward. An annular groove (12) is formed on the end of the surface of the slide rod (11) away from the fixed plate (14).

6. A bearing silent tester according to claim 5, characterized in that: A through groove (9) is provided on the surface of the control plate (8), and the annular groove (12) slides inside the through groove (9).

7. A bearing silent tester according to claim 6, characterized in that: A handle (10) is fixed on the top of the control panel (8).

Images