CN112082761A

CN112082761A - Multidirectional rotating machinery bearing vibration measuring device

Info

Publication number: CN112082761A
Application number: CN202010945390.5A
Authority: CN
Inventors: 徐佳俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2020-12-15

Abstract

The invention provides a multi-azimuth rotary mechanical bearing vibration measuring device, and relates to the technical field of mechanical vibration detection. This diversified rotating machinery bearing vibration measuring device, including the pivot, the peripheral fixedly connected with mount pad of pivot, the peripheral fixedly connected with bearing of the inside pivot of mount pad, the hydraulic pressure chamber has been seted up to the periphery of mount pad, one side sliding connection that the hydraulic pressure chamber is close to the bearing has first piston, the one end fixed mounting that first piston is close to the bearing has the feeler lever, the first spring of peripheral fixedly connected with of feeler lever. This diversified rotating machinery bearing vibration measuring device comes to carry out the perception to the vibration of bearing through mechanical structure to enlarge the displacement that the vibration produced, when can carry out all-round detection to bearing outlying vibration, also improved measuring precision, realized to bearing outlying check out test set's calibration and zero setting, avoided the error that the intermittent type measuring in-process produced.

Description

Multidirectional rotating machinery bearing vibration measuring device

Technical Field

The invention relates to the technical field of mechanical vibration detection, in particular to a multi-azimuth vibration measuring device for a rotary mechanical bearing.

Background

The bearing vibration measuring device is an instrument for detecting the vibration of a bearing generated in the using process, and is mainly suitable for bearing manufacturers to detect the quality of the bearing, but because the amplitude of the vibration of the bearing generated in the using process is very small, the traditional measuring device utilizes a direct attached sensor to detect, the measuring precision is low, and when the device stops running, the deviation of the initial position of the bearing can be changed, so that the bearing can generate errors in the subsequent vibration detecting process.

In order to solve the above problems, the inventor provides a multi-azimuth rotary mechanical bearing vibration measuring device, which senses the vibration of a bearing through a mechanical structure, amplifies the displacement generated by the vibration, can detect the vibration around the bearing in an all-around manner, improves the measuring precision, realizes the calibration and zero adjustment of the peripheral detecting equipment of the bearing, and avoids the error generated in the intermittent measurement process.

Disclosure of Invention

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a diversified rotating machinery bearing vibration measuring device, includes pivot, mount pad, bearing, hydraulic pressure chamber, first piston, feeler lever, first spring, second piston, squeeze stem, second spring, pressure sensor, threaded rod, wire, processing element, calibration dial plate.

Wherein:

the utility model discloses a hydraulic pressure sensor, including mount pad, hydraulic chamber, first piston, feeler lever, wire fixedly connected with processing element, the peripheral fixedly connected with calibration dial plate of processing element, the peripheral fixedly connected with bearing of the inside pivot of mount pad, the hydraulic pressure chamber has been seted up to the periphery of mount pad, one side sliding connection that the hydraulic pressure chamber is close to the bearing has first piston, the one end fixed mounting that first piston is close to the bearing has the feeler lever, the first piston is close to the one end fixed mounting of bearing has the first spring of feeler lever, the first piston is kept away from in the hydraulic pressure chamber, one side sliding connection that the bearing has the second piston, the one end fixed mounting that first piston was kept away from to the second piston has the stripper bar, the outside of stripper bar is through second spring fixedly connected with pressure sensor.

Preferably, the periphery of the hydraulic cavity is conical, the aperture is gradually reduced from inside to outside, and hydraulic oil is filled in the hydraulic cavity, so that hydraulic pressure can be generated after pressure is generated in the hydraulic cavity.

Preferably, the first piston and the second piston are respectively connected inside the inner side and the outer side of the hydraulic cavity in a sliding manner, and are attached to the inner wall of the hydraulic cavity, and the sectional area of the first piston is ten times that of the second piston, so that when the first piston moves, the second piston can amplify the moving distance under the action of hydraulic pressure.

Preferably, the total ten feeler levers of quantity, at the inboard evenly distributed of mount pad, and inboard all is attached mutually with the surface of bearing, is convenient for perceive the peripheral rotation of bearing.

Preferably, the periphery of the inner side of the feeler lever is fixedly provided with a limiting disc, and the first spring is fixedly connected between the limiting disc and the inner wall of the mounting seat, so that the feeler lever is elastically connected and attached to the periphery of the bearing.

Preferably, the pressure sensor is connected with the mounting seat in a limiting sliding mode inside the mounting seat, a threaded rod connected with the mounting seat in a rotating mode is connected with the inner wall of the mounting seat in a threaded mode on the outer side of the mounting seat in a rotating mode, and a knob is fixedly mounted on the periphery of the threaded rod, so that the position of the pressure sensor inside the mounting seat can be adjusted through rotating the threaded rod.

Preferably, the calibration dial plates extend outwards to the periphery of the mounting seat and are uniformly distributed on the periphery of the mounting seat, and all the calibration dial plates are electrically connected with the data processing device, so that the data processing device can collect and process data reflected on each calibration dial plate in a centralized manner to obtain vibration data on each part of the periphery of the bearing.

The invention provides a multi-azimuth rotary mechanical bearing vibration measuring device. The method has the following beneficial effects:

1. this diversified rotating machinery bearing vibration measuring device through feeler lever and bearing outlying mutual attached to and the design of the inside first piston and the second piston in the different apertures in the inside and outside both sides of hydraulic pressure chamber, can come to carry out the perception to the vibration of bearing through mechanical structure, and enlarge the displacement that the vibration produced, when can carrying out all-round detection to bearing outlying vibration, also improved measuring precision.

2. This diversified rotating machinery bearing vibration measuring device, the second spring through fixed connection between extrusion stem and the pressure sensor to and the design of the threaded rod of pressure sensor outside rotation connection, when the pivot stop rotation, can adjust the pressure that each pressure sensor received through the cooperation of threaded rod and calibration dial plate, and then realize the calibration and zero adjustment to bearing peripheral check out test set, avoid the error that the intermittent type measuring in-process produced.

Drawings

FIG. 1 is a cross-sectional view of a structure of the present invention;

FIG. 2 is a cross-sectional view of the structure of FIG. 1 taken along line A-A thereof in accordance with the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2;

FIG. 4 is a schematic view of a single detection structure at the top of the mount of the present invention;

fig. 5 is an enlarged view of the structure of fig. 4 at B according to the present invention.

In the figure: 1. a rotating shaft; 2. a mounting seat; 3. a bearing; 4. a hydraulic chamber; 5. a first piston; 6. a feeler lever; 7. a first spring; 8. a second piston; 9. an extrusion stem; 10. a second spring; 11. a pressure sensor; 12. a threaded rod; 13. a wire; 14. a processing element; 15. and calibrating the dial plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the multi-azimuth rotating machinery bearing vibration measuring device is as follows:

referring to fig. 1-5, a multi-directional vibration measuring device for a rotating mechanical bearing includes a rotating shaft 1, a mounting base 2, a bearing 3, a hydraulic chamber 4, a first piston 5, a feeler lever 6, a first spring 7, a second piston 8, a squeeze lever 9, a second spring 10, a pressure sensor 11, a threaded rod 12, a wire 13, a processing element 14, and a calibration dial 15.

Wherein:

the periphery of the rotating shaft 1 is fixedly connected with a mounting seat 2, the periphery of the rotating shaft 1 inside the mounting seat 2 is fixedly connected with a bearing 3, the periphery of the mounting seat 2 is provided with a hydraulic cavity 4, the periphery of the hydraulic cavity 4 is conical, the aperture is gradually reduced from inside to outside, hydraulic oil is filled inside the hydraulic cavity 4, so that hydraulic pressure can be generated after the pressure is generated inside the hydraulic cavity 4, one side of the hydraulic cavity 4, which is close to the bearing 3, is slidably connected with a first piston 5, one end of the first piston 5, which is close to the bearing 3, is fixedly provided with a touch rod 6, the number of the touch rods 6 is ten, the touch rods are uniformly distributed on the inner side of the mounting seat 2, the inner sides of the touch rods are attached to the outer surface of the bearing 3, the rotation of the periphery of the bearing 3 is sensed conveniently, the periphery of the touch rod 6 is fixedly connected with a first spring 7, the periphery of the inner side of the touch, make feeler lever 6 be elastic connection, come to be attached mutually with the periphery of bearing 3, through feeler lever 6 and the peripheral mutual attached of bearing 3 to and the inside and outside different apertures of both sides of hydraulic pressure chamber 4 inside first piston 5 and the design of second piston 8, can come to carry out the perception to the vibration of bearing 3 through mechanical structure, and enlarge the displacement that the vibration produced, when can carrying out all-round detection to the peripheral vibration of bearing 3, also improved measuring precision.

One side of the hydraulic cavity 4 far away from the bearing 3 is connected with a second piston 8 in a sliding manner, the first piston 5 and the second piston 8 are respectively connected in the inner side and the outer side of the hydraulic cavity 4 in a sliding manner and are attached to the inner wall of the hydraulic cavity 4, and the sectional area of the first piston 5 is ten times of that of the second piston 8, so that when the first piston 5 moves, under the action of hydraulic pressure, the second piston 8 can amplify the moving distance, a squeezing rod 9 is fixedly installed at one end of the second piston 8 far away from the first piston 5, a pressure sensor 11 is fixedly connected to the outer side of the squeezing rod 9 through a second spring 10, the pressure sensor 11 is in limited sliding connection in the mounting seat 2, a threaded rod 12 in outer side rotating connection is in threaded connection with the inner wall of the mounting seat 2, and a knob is fixedly installed on the periphery of the threaded rod 12, so that the position of the pressure sensor 11 in the mounting seat 2 can be adjusted by rotating the threaded rod, the outer side of the pressure sensor 11 is rotatably connected with a threaded rod 12, the left end and the right end of the pressure sensor 11 are fixedly connected with a processing element 14 through leads 13, the periphery of the processing element 14 is fixedly connected with a calibration dial 15, the calibration dial 15 extends outwards to the periphery of the mounting seat 2 and is uniformly distributed on the periphery of the mounting seat 2, and all the calibration dials 15 are electrically connected with a data processing device, so that the data processing device can intensively collect and process data reflected on each calibration dial 15 to obtain vibration data of each part of the periphery of the bearing 3, through the design of the second spring 10 fixedly connected between the extrusion rod 9 and the pressure sensor 11 and the threaded rod 12 rotatably connected on the outer side of the pressure sensor 11, when the rotating shaft 1 stops rotating, the pressure borne by each pressure sensor 11 can be adjusted through the matching of the threaded rod 12 and the calibration dial 15, and further, the calibration and zero setting of the peripheral detection equipment of the bearing 3 are realized, so that errors generated in the intermittent measurement process are avoided.

When the device is used, the rotating shaft 1, the bearing 3 and the mounting seat 2 are installed, then the driving device is used for driving the rotating shaft 1 to rotate in the bearing 3 to observe whether the rotating shaft 1 rotates normally, after the rotating shaft 1 rotates normally due to debugging, the rotating shaft 1 stops rotating to calibrate and zero the detection device, the threaded rod 12 is rotated, the threaded rod 12 is connected in the mounting seat 2 in a threaded manner to drive the pressure sensor 11 to move in the mounting seat 2 to adjust the pressure of the second spring 10 received by the pressure sensor 11, the calibration dial 15 is matched for calibrating and zero adjustment, after the adjustment is completed, the rotating shaft 1 is driven to rotate again, when the bearing 3 vibrates, the vibration can be sensed by the action of the touch rod 6 attached to the periphery of the bearing 3, so that the touch rod 6 moves, and then drive first piston 5 and move in hydraulic pressure chamber 4, cooperate with the tapered mouth of hydraulic pressure chamber 4 and the proportion of the first piston 5 and second piston 8 bore diameter, can enlarge the displacement distance that the vibration produced, and then improve the measuring precision, and the movement of second piston 8 can make the extrusion pole 9 extrude the second spring 10, and then increase or reduce the pressure that pressure sensor 11 received, and process the data collected through processing element 14, and carry out the feedback on calibration dial 15, and utilize the electric connection of all calibration dials 15 and data processing device, can concentrate the collection and handle to the data that reflect on calibration dial 15 everywhere, obtain the vibration data of bearing 3 periphery everywhere, realized measuring and detecting bearing 3 vibration.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a diversified rotating machinery bearing vibration measuring device, includes pivot (1), its characterized in that: the periphery of the rotating shaft (1) is fixedly connected with a mounting seat (2), the periphery of the rotating shaft (1) in the mounting seat (2) is fixedly connected with a bearing (3), a hydraulic cavity (4) is formed in the periphery of the mounting seat (2), one side, close to the bearing (3), of the hydraulic cavity (4) is connected with a first piston (5) in a sliding mode, one end, close to the bearing (3), of the first piston (5) is fixedly provided with a touch rod (6), the periphery of the touch rod (6) is fixedly connected with a first spring (7), one side, far away from the bearing (3), of the hydraulic cavity (4) is connected with a second piston (8) in a sliding mode, one end, far away from the first piston (5), of the second piston (8) is fixedly provided with an extrusion rod (9), the outer side of the extrusion rod (9) is fixedly connected with a pressure sensor (11) through a second spring (10), and the outer side of the pressure sensor (, the left end and the right end of the pressure sensor (11) are fixedly connected with a processing element (14) through a conducting wire (13), and the periphery of the processing element (14) is fixedly connected with a calibration dial (15).

2. The multi-azimuth rotating machine bearing vibration measuring device of claim 1, wherein: the periphery of the hydraulic cavity (4) is conical, the aperture gradually decreases from inside to outside, and hydraulic oil is filled in the hydraulic cavity (4).

3. The multi-azimuth rotating machine bearing vibration measuring device of claim 1, wherein: the first piston (5) and the second piston (8) are respectively connected to the inner side and the outer side of the hydraulic cavity (4) in a sliding mode, are attached to the inner wall of the hydraulic cavity (4) mutually, and the sectional area of the first piston (5) is ten times that of the second piston (8).

4. The multi-azimuth rotating machine bearing vibration measuring device of claim 1, wherein: the number of the feeler levers (6) is ten, the feeler levers are uniformly distributed on the inner side of the mounting seat (2), and the inner side of the feeler levers is attached to the outer surface of the bearing (3).

5. The multi-azimuth rotating machine bearing vibration measuring device of claim 1, wherein: the contact rod (6) is characterized in that a limiting disc is fixedly mounted on the inner side of the periphery of the contact rod, and the first spring (7) is fixedly connected between the limiting disc and the inner wall of the mounting seat (2).

6. The multi-azimuth rotating machine bearing vibration measuring device of claim 1, wherein: the pressure sensor (11) is connected with the inner wall of the mounting seat (2) in a limiting and sliding mode, the threaded rod (12) connected with the mounting seat (2) in a rotating mode is connected with the inner wall of the mounting seat in a threaded mode, and a knob is fixedly installed on the periphery of the threaded rod (12).

7. The multi-azimuth rotating machine bearing vibration measuring device of claim 1, wherein: the calibration dial (15) outwards extends to the periphery of the mounting seat (2), the calibration dial is uniformly distributed on the periphery of the mounting seat (2), and all the calibration dial (15) are electrically connected with the data processing device.