A bearing vibration noise measuring instrument

Abstract

The utility model discloses a bearing vibration noise measuring instrument, the utility model belongs to bearing vibration measuring instrument technical field, a bearing vibration noise measuring instrument contains positioning stand and the lifting groove that opens to the inside of positioning stand front, and the top surface of self lifting groove extends downwardly to have the threaded rod, and the threaded rod end that is located in the inside of positioning stand is fixed with gear no.

Description

Technical Field

[0001] This utility model belongs to the technical field of bearing vibration measuring instruments, and in particular relates to a bearing vibration noise measuring instrument. Background Technology

[0002] A bearing vibration measuring instrument, also known as a bearing velocity measuring instrument, is a device used to measure the vibration velocity of deep groove ball bearings, angular contact ball bearings, and tapered roller bearings. It is primarily used in bearing manufacturers, motor factories, commodity inspection departments, and research institutions for bearing manufacturing testing and acceptance. When a bearing needs to be measured, it is placed on a rotating shaft, and then the outer ring of the bearing is positioned using a positioning rod. The sensor then collects the measurement data.

[0003] According to publication number CN115791181A, the title is: "A Bearing Vibration and Noise Measuring Instrument." This instrument, by incorporating a drive box, a rotary motor, a second turntable, and a convex positioning shaft, facilitates bearing positioning and simultaneously drives the inner ring to rotate.

[0004] In the aforementioned patent, the bearing is placed on the rotating shaft and fixed by a concave limiting plate. Subsequently, the bearing is measured and tested. However, due to the different diameters of some bearings, the fixed position is also adjusted accordingly. However, in the aforementioned patent, the adjustment needs to be made separately and cannot be adjusted simultaneously. Utility Model Content

[0005] The purpose of this invention is to provide a bearing vibration and noise measuring instrument to solve the technical problem mentioned in the background art of not being able to simultaneously adjust and fix the bearing.

[0006] To achieve the above objectives, the specific technical solution of this utility model is as follows: A bearing vibration and noise measuring instrument includes a positioning frame and a lifting groove opened inward on the front of the positioning frame. A threaded rod extends downward from the top surface of the lifting groove, and a gear is fixed at the end of the threaded rod located inside the positioning frame. At the same time, a positioning rod capable of synchronous displacement adjustment is also provided in the lifting groove. A push rod is also fixed on one side of the positioning frame, and the push rod pushes the positioning frame to move laterally.

[0007] Preferably, one side of each of the three gears is provided with a rotatable rotating disk, and a crown gear is fixed to the edge of the rotating disk surface opposite to the gear, which forms a meshing connection with the gear.

[0008] Preferably, a rotating shaft extends from the center of the rotating disk toward the center of the positioning frame, a lifting block is slidably provided on the bottom surface of the lifting groove, and a threaded hole is provided through the top surface of the lifting block to be threadedly connected to the threaded rod, and the end of the positioning rod is fixedly connected to one end of the lifting block.

[0009] Preferably, the synchronous displacement adjustment of the positioning rod is achieved through a drive mechanism.

[0010] Preferably, the drive mechanism is composed of a motor located inside the push rod, and the power output end of the motor is fixedly connected to the center of the rotating disk.

[0011] Preferably, the drive mechanism is composed of a crown gear two fixedly formed at the other edge of the rotating disk, and a gear groove is provided at one end of the push rod, and a rotatable gear two is provided inside the gear groove.

[0012] Preferably, the second gear is meshed with the second crown gear, and a positioning hole is provided on the outer periphery of the push rod in the direction of the gear groove, and a telescopic shaft extends from the center of the second gear in the direction of the positioning hole.

[0013] Preferably, the telescopic shaft has two limiting grooves on its outer surface, one on each side, and a sleeve is fitted onto the outer circumferential surface of the telescopic shaft, the sleeve being open from the bottom to the top.

[0014] Preferably, one end of the push rod is also fixed with a cylinder rod, the extension and retraction of the cylinder rod is achieved by the cylinder, the bottom surface of the cylinder is also fixed with a base, and the bottom surface of the base is fixed with a base plate.

[0015] The bearing vibration and noise measuring instrument of this utility model has the following advantages:

[0016] When the bearing needs to be measured and its positioning rod needs to be adjusted, the motor inside the push rod can start running. Then the motor output drives the rotating disk, and the crown gear at the edge of the rotating disk drives the gear on one side, so that the three threaded rods can rotate synchronously. When the threaded rods rotate, they are threadedly connected to the threaded holes, and then the three positioning rods can be synchronously displaced and adjusted. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the telescopic frame structure of this utility model;

[0020] Figure 3This is a schematic diagram of the positioning frame structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the first embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the second embodiment of the present invention;

[0023] Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0024] The markings in the diagram are as follows: 1. Analyzer; 11. Body; 12. Base plate; 13. Base; 131. Telescopic frame; 2. Cylinder; 21. Cylinder rod; 22. Push rod; 221. Limiting groove one; 222. Motor; 23. Gear groove; 24. Positioning hole; 3. Positioning frame; 31. Lifting groove; 32. Lifting block; 321. Threaded hole; 322. Positioning rod; 33. Threaded rod; 331. Gear one; 4. Rotary disk; 41. Crown gear one; 42. Rotating shaft; 43. Crown gear two; 5. Gear two; 51. Telescopic shaft; 52. Sleeve; 53. Limiting groove two. Detailed Implementation

[0025] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a bearing vibration and noise measuring instrument.

[0026] like Figures 1-4 As shown, the first embodiment of this application is illustrated, wherein the bearing vibration and noise measuring instrument of this application consists of an analyzer 1 and a body 11 fixedly connected to the bottom of the analyzer 1. A rotatable drive mechanism is also provided on the front of the body 11, and its bearing can be sleeved on the rotating shaft of the drive mechanism. The vibration generated by its rotation can then be analyzed by the analyzer 1.

[0027] A base plate 12 is fixed to the lower part of the body 11, and a base 13 for supporting the cylinder 2 is fixed to the upper surface of the base plate 12. The output end of the cylinder 2 faces the shaft of the drive mechanism and is arranged coaxially. A telescopic cylinder rod 21 is located at the output end of the cylinder 2. A push rod 22 is sleeved at the end of the cylinder rod 21, and the hole in the center of the telescopic frame 131 is sleeved on the outer circumferential surface of the push rod 22. One end of the telescopic frame 131 is fixedly connected to one side of the outer surface of the base 13. At the same time, a limiting groove 221 is formed downward on the outer circumferential surface of the push rod 22, and one end of the protrusion on the inner ring wall of the central opening of the telescopic frame 131 extends to the limiting groove 221. By moving the protrusion along the limiting groove 221, the push rod 22 can be limited to telescopic extension.

[0028] A positioning frame 3 is fixed at the end of the push rod 22. The positioning frame 3 is arranged in a triangular structure. A lifting groove 31 is opened through the front of the positioning frame 3 so that the positioning rod 322 can move. One end of the positioning rod 322 abuts against the outer ring of the bearing through the cylinder 2.

[0029] A threaded rod 33 extends downward from the top surface of the lifting groove 31, and the end of the threaded rod 33 extends into the hollow center of the positioning frame 3. A gear 331 is fixed to the end of the threaded rod 33 inside the positioning frame 3. A rotatable rotating disk 4 is also provided on one side of the three gears 331. A crown gear 41 is fixed to the edge of the surface of the rotating disk 4 opposite to the gears 331. The crown gear 41 is meshed with the gears 331. A rotating shaft 42 extends from the center of the rotating disk 4 toward the center of the positioning frame 3. The rotating disk 4 can be rotated around the rotating shaft 42.

[0030] A lifting block 32 is slidably provided on the bottom surface of the lifting groove 31. At the same time, a threaded hole 321 is provided through the top surface of the lifting block 32, which can be threadedly connected to the threaded rod 33. The end of the positioning rod 322 is fixedly connected to one end of the lifting block 32. The positioning rod 322 can be synchronously displaced by driving the driving mechanism.

[0031] like Figure 4 The diagram illustrates the drive mechanism of the first embodiment of this application. This drive mechanism comprises a motor 222 located inside the push rod 22. The power output end of the motor 222 is fixedly connected to the center of the rotating disk 4. Therefore, when the bearing needs to be measured and its positioning rod 322 needs to be adjusted, the motor 222 inside the push rod 22 can operate. The output end of the motor 222 drives the rotating disk 4, and subsequently, the crown gear 41 at the edge of the rotating disk 4 drives the gear 331 meshing on one side, thereby enabling the three threaded rods 33 to rotate synchronously. When the threaded rods 33 rotate, they are threadedly connected to the threaded holes 321, thus allowing the three positioning rods 322 to be synchronously displaced and adjusted.

[0032] like Figures 5-6 As shown, a second embodiment of this application is presented. This embodiment maintains the same core concept as the first embodiment, but the drive mechanism is improved. The drive mechanism is composed of a crown gear 43 fixedly formed at the other edge of the rotating disk 4. A gear groove 23 is provided at one end of the push rod 22. A rotatable gear 5 is provided inside the gear groove 23. The gear 5 and the crown gear 43 are meshed. Therefore, when the gear 5 rotates, it can drive the crown gear 43 meshed on one side.

[0033] Meanwhile, a positioning hole 24 is provided on the outer periphery of the push rod 22 in the direction of the gear groove 23. A telescopic shaft 51 extends from the center of the gear 25 towards the positioning hole 24. Limiting grooves 253 are respectively provided on both sides of the outer surface of the telescopic shaft 51. A sleeve 52 is sleeved on the outer periphery of the telescopic shaft 51. The sleeve 52 is open from bottom to top. At the same time, the protrusion provided on the inner wall of the sleeve 52 extends to the limiting groove 253, so that the sleeve 52 can be displaced along the length of the limiting groove 253. A magnetic block is also fixed on the top surface of the inner cavity of the sleeve 52. The magnetic block can make the sleeve 52 and the top surface of the telescopic shaft 51 magnetically attract each other, and then the sleeve 52 is fixed in the positioning hole 24. Therefore, when the positioning rod 322 needs to be adjusted synchronously, the sleeve 52 is pulled, and the sleeve 52 is moved out of the positioning hole 24. Then, the sleeve 52 is rotated so that the telescopic shaft 51 can rotate together. After the telescopic shaft 51 rotates, the gear 2 5 drives the crown gear 2 43 meshing on one side, thereby enabling the three positioning rods 322 to move together.

[0034] The working principle of a bearing vibration and noise measuring instrument: When the bearing needs to be measured, and its positioning rod 322 needs to be adjusted, the motor 222 inside the push rod 22 can run. Then, the output end of the motor 222 drives the rotating disk 4. Subsequently, the crown gear 41 at the edge of the rotating disk 4 can drive the gear 331 meshing on one side, thereby enabling the three threaded rods 33 to rotate synchronously. When the threaded rods 33 rotate, they are threadedly connected to the threaded hole 321, and then the three positioning rods 322 can be synchronously displaced and adjusted.

[0035] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A bearing vibration and noise measuring instrument, characterized in that: The positioning frame (3) includes a positioning frame (3) and a lifting groove (31) with the front of the positioning frame (3) facing inward. A threaded rod (33) extends downward from the top surface of the lifting groove (31), and a gear (331) is fixed at the end of the threaded rod (33) inside the positioning frame (3). At the same time, a positioning rod (322) capable of synchronous displacement adjustment is also provided inside the lifting groove (31). A push rod (22) is also fixed on one side of the positioning frame (3), and the push rod (22) pushes the positioning frame (3) to move laterally.

2. The bearing vibration and noise measuring instrument according to claim 1, characterized in that: One side of each of the three gears (331) is provided with a rotating disk (4) that can rotate. The edge of the rotating disk (4) opposite to the gear (331) is fixed with a crown gear (41), which meshes with the gear (331).

3. The bearing vibration and noise measuring instrument according to claim 2, characterized in that: The rotating disk (4) has a rotating shaft (42) extending from the center of the rotating disk (4) to the center of the positioning frame (3). The bottom surface of the lifting groove (31) is provided with a lifting block (32). At the same time, a threaded hole (321) is provided on the top surface of the lifting block (32) and can be threadedly connected to the threaded rod (33). The end of the positioning rod (322) is fixedly connected to one end of the lifting block (32).

4. The bearing vibration and noise measuring instrument according to claim 3, characterized in that: The synchronous displacement adjustment of the positioning rod (322) is achieved through a drive mechanism.

5. The bearing vibration and noise measuring instrument according to claim 4, characterized in that: The drive mechanism consists of a motor (222) located inside the push rod (22), and the power output end of the motor (222) is fixedly connected to the center of the rotating disk (4).

6. The bearing vibration and noise measuring instrument according to claim 4, characterized in that: The drive mechanism is composed of a crown gear (43) fixed at the edge of the other side of the rotating disk (4), and a gear groove (23) is provided at one end of the push rod (22), and a rotatable gear (5) is provided inside the gear groove (23).

7. The bearing vibration and noise measuring instrument according to claim 6, characterized in that: The gear 2 (5) is meshed with the crown gear 2 (43). A positioning hole (24) is provided on the outer periphery of the push rod (22) in the direction of the gear groove (23). A telescopic shaft (51) extends from the center of the gear 2 (5) in the direction of the positioning hole (24).

8. The bearing vibration and noise measuring instrument according to claim 7, characterized in that: The telescopic shaft (51) has two limiting grooves (53) on both sides of its outer surface, and a sleeve (52) is fitted on the outer circumferential surface of the telescopic shaft (51), which is open from bottom to top.

9. The bearing vibration and noise measuring instrument according to claim 8, characterized in that: One end of the push rod (22) is also fixed with a cylinder rod (21). The extension and retraction of the cylinder rod (21) are achieved by the cylinder (2). The bottom surface of the cylinder (2) is also fixed with a base (13), and the bottom surface of the base (13) is fixed with a base plate (12).

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