CN220670930U

CN220670930U - Vibration measuring instrument

Info

Publication number: CN220670930U
Application number: CN202322400485.0U
Authority: CN
Inventors: 蔡文革; 周书香; 林鸿城
Original assignee: Fujian Huake Measurement And Testing Co ltd
Current assignee: Fujian Huake Measurement And Testing Co ltd
Priority date: 2023-09-05
Filing date: 2023-09-05
Publication date: 2024-03-26
Anticipated expiration: 2033-09-05

Abstract

The utility model discloses a vibration measuring instrument which comprises a base, wherein a groove is formed in the base, a guide chute is formed in the inner wall of the groove, a movable groove and a wire groove which are communicated with the groove are also formed in the base, a clamping mechanism is connected in the movable groove, one side of the base is fixedly connected with a height adjusting mechanism, and the other side of the base is connected with a detecting mechanism; the detection mechanism comprises an electric push rod and a data acquisition instrument which are fixedly connected to one side of the base, a mounting frame fixedly connected to the telescopic end of the electric push rod, and a clamping block connected to the mounting frame. According to the vibration measuring device, the height adjusting mechanism is arranged, the height of the driving mechanism can be adjusted through the height adjusting mechanism, when the bearing with the larger outer diameter is subjected to vibration measurement, the axis of the driving mechanism is adjusted according to the axis of the bearing, the axis of the driving mechanism and the axis of the bearing are located on the same horizontal plane, and accuracy of measured data is guaranteed.

Description

Vibration measuring instrument

Technical Field

The utility model relates to the technical field of mechanical vibration measurement, in particular to a vibration measuring instrument.

Background

Mechanical vibration is a common physical phenomenon in engineering and daily life. Vibrations have detrimental aspects such as disrupting the normal operation of the machine, shortening the service life of the machine, generating noise, etc.

The existing vibration measuring instrument can measure the vibration of the bearing, but has the following defects that when a worker fixes or dismounts the bearing, the worker needs to frequently screw the fastening bolt, so that the movable plate and the fixed plate are mutually close to or far away from each other, and the operation is complicated;

the prior patent (publication number: CN 212779945U) discloses an angle adjusting device of a computer display screen, which comprises a base, an L-shaped plate body, a left vertical plate, a right vertical plate, a measuring assembly, an air cylinder, a sensor and other structures, wherein two movable blocks are enabled to move in opposite directions through rotation of a driving screw to complete fixed clamping of a bearing, so that a worker can conveniently fix or detach the bearing, and two rubber sheets are arranged on the two movable blocks for increasing friction force when the two rubber sheets are contacted with the bearing, so that the fixing effect is enhanced.

To the above-mentioned problem, the prior patent gives a solution, but does not give how to measure the vibration of the bearing, the bearing is usually used in cooperation with the rotor, in the prior patent, only the clamping and fixing of the bearing are disclosed, how to make the bearing inner ring rotate to finish the measurement of the vibration of the bearing is not disclosed, and also related structures are not disclosed, if the measurement of the vibration of the bearing is finished by manually rotating the bearing inner ring, inaccurate measurement data can be caused, if the bearing inner ring is driven to rotate by the driving mechanism, no corresponding supporting mechanism is provided in the patent, and the bearing axle centers of different outer diameters are different in height, and the axle centers of the driving mechanism cannot be guaranteed to be consistent with the bearing axle centers.

For this purpose, a vibration measuring device is proposed.

Disclosure of Invention

The utility model aims to provide a vibration measuring instrument which can solve the problems that measurement data are inaccurate and the axis of a driving mechanism is not consistent with the axis of a bearing.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the vibration measuring instrument comprises a base, wherein a groove is formed in the base, a guide sliding groove is formed in the inner wall of the groove, a movable groove and a wire groove which are communicated with the groove are also formed in the base, a clamping mechanism is connected in the movable groove, one side of the base is fixedly connected with a height adjusting mechanism, and the other side of the base is connected with a detecting mechanism;

the detection mechanism comprises an electric push rod fixedly connected to one side of the base, a data acquisition instrument, a mounting frame fixedly connected to the telescopic end of the electric push rod, a clamping block connected to the mounting frame, a second fixing bolt for fixing the clamping block to the mounting frame, and a sensor clamped and limited in the mounting frame by the clamping block and connected with the data acquisition instrument, wherein the sensor is connected with the downward-pressing positioning mechanism in a sliding manner in the guide sliding groove.

Preferably, the telescopic end of the electric push rod penetrates through the base and enters the groove, and the sensor comprises a non-contact type eddy current displacement sensor and a magneto-electric speed sensor.

Preferably, the height adjusting mechanism comprises a supporting seat fixedly connected to one side of the base, a plurality of guide posts penetrating through the supporting seat, a lifting seat fixedly connected with one ends of the guide posts, a screw rod II rotatably connected to the adjacent side of the lifting seat and the supporting seat, and a driving mechanism fixedly connected to the deviating side of the lifting seat and the supporting seat.

Preferably, the clamping mechanism comprises a servo motor fixedly connected to one side of the base, a first screw rod, a movable seat and a clamping piece, wherein one end of the first screw rod is connected with the servo motor, the other end of the first screw rod is rotationally connected with the inner wall of the movable groove, the movable seat is connected to the first screw rod in a threaded mode, and the clamping piece is fixedly connected to the movable seat.

Preferably, the clamping piece comprises an arc clamping seat and a clamping block, a slot is formed in the movable seat, a protruding block is integrally formed on one side of the clamping piece adjacent to the movable seat, and the protruding block is inserted into the slot and fixed through a first fixing bolt.

Preferably, the arc clamping seat is provided with a limit flange integrally formed on one side adjacent to the base, the arc clamping seat is connected with a limit plate on one side deviating from the base, the limit plate is fixedly connected with a guide rod on one side adjacent to the arc clamping seat, a guide groove for accommodating the guide rod is formed in the arc clamping seat, a screw groove is formed in the arc clamping seat, a positioning bolt is screwed into the limit plate, and the positioning bolt penetrates through the limit plate to be screwed into the screw groove.

Preferably, the pressing positioning mechanism comprises a sliding seat sliding in the guide sliding groove, a screw rod III rotatably connected to one side of the sliding seat, an inclined block fixed to one side of the sliding seat, a screw rod IV screwed in the inclined block, and an arc-shaped pressing seat rotatably connected with one end of the screw rod IV, wherein the screw rod III penetrates through the base and extends outwards with one end of the sliding seat, which is away from the base.

Preferably, the external threads on two sides of one outer surface of the screw rod are symmetrically arranged.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the vibration measuring device, the height adjusting mechanism is arranged, the height of the driving mechanism can be adjusted through the height adjusting mechanism, when the bearing with the larger outer diameter is subjected to vibration measurement, the axis of the driving mechanism is adjusted according to the axis of the bearing, so that the axis of the driving mechanism and the axis of the bearing are positioned on the same horizontal plane, and the accuracy of measured data is ensured;

2. this application is through being provided with pushing down positioning mechanism, can realize the location to different external diameter bearings through pushing down positioning mechanism, use with the fixture cooperation, fixture is to bearing below both sides application clamping force, pushing down positioning mechanism and exerting pressure to bearing top both sides, can be better to the positioning effect of bearing, make actuating mechanism when driving the bearing inner race and rotating, the bearing outer lane is more stable, better simulation goes out the service environment of bearing in mechanical equipment, the design of spacing piece can carry out spacingly to the bearing of different thickness simultaneously, the suitability of equipment has been improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is an overall structural view of the present utility model;

FIG. 2 is a top view of the base of the present utility model;

FIG. 3 is a view showing the structure of the pressing and positioning mechanism of the present utility model;

FIG. 4 is a structural view of the detection mechanism of the present utility model;

FIG. 5 is a view showing the structure of the guide bar and the limiting plate of the present utility model;

fig. 6 is a view showing the structure of the clamping block according to the present utility model.

Reference numerals illustrate:

1. a base; 11. a groove; 12. a movable groove; 13. a guide chute; 14. a wire slot; 2. a clamping mechanism; 21. a servo motor; 22. a first screw; 23. a first fixing bolt; 24. a movable seat; 25. an arc clamping seat; 26. a limit flange; 27. a guide rod; 28. a limiting piece; 29. a screw groove; 3. a height adjusting mechanism; 31. a lifting seat; 32. a support base; 33. a guide post; 34. a second screw; 35. a driving mechanism; 4. a detection mechanism; 41. a data acquisition instrument; 42. an electric push rod; 43. a mounting frame; 44. clamping blocks; 45. a second fixing bolt; 46. a sensor; 5. a pressing positioning mechanism; 51. a screw III; 52. a slide; 53. a sloping block; 54. a screw rod IV; 55. an arc-shaped pressing seat; 6. and a clamping block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 5, the present utility model provides a technical solution:

the vibration measuring instrument comprises a base 1, wherein a groove 11 is formed in the base 1, a guide chute 13 is formed in the inner wall of the groove 11, a movable groove 12 and a wire groove 14 which are communicated with the groove 11 are formed in the base 1, a clamping mechanism 2 is connected in the movable groove 12, a height adjusting mechanism 3 is fixedly connected to one side of the base 1, and a detecting mechanism 4 is connected to the other side of the base 1;

the detection mechanism 4 comprises an electric push rod 42 fixedly connected to one side of the base 1, a data acquisition instrument 41, a mounting frame 43 fixedly connected to the telescopic end of the electric push rod 42, a clamping block 44 connected to the mounting frame 43, a second fixing bolt 45 for fixing the clamping block 44 to the mounting frame 43, and a sensor 46 clamped and limited in the mounting frame 43 by the clamping block 44 and connected with the data acquisition instrument 41, wherein the guide chute 13 is in sliding connection with the pressing positioning mechanism 5. The telescopic end of the electric push rod 42 penetrates through the base 1 and enters the groove 11, and the sensor 46 comprises a non-contact eddy current displacement sensor 46 and a magneto-electric speed sensor 46.

By adopting the technical scheme, after the bearing inner ring is fixedly connected with the rotor shaft neck, the clamping mechanism 2 is controlled to fixedly clamp the two sides below the bearing outer ring, the pressing positioning mechanism 5 is controlled to press down, fix and compress the two sides above the bearing outer ring, the height of the driving device is adjusted through the height adjusting mechanism 3, the axis of the output shaft of the driving device and the axis of the rotor shaft neck are positioned on the same horizontal plane, the output shaft of the driving device and the rotor shaft neck are fixedly connected, the electric push rod 42 is controlled to descend to drive the sensor 46 to descend, the non-contact type eddy current displacement sensor 46 is adopted for measuring the relative vibration of the rotor shaft neck, the driving device is driven to rotate through the probe of the non-contact type eddy current displacement sensor 46 and the outer wall of the bearing, the vibration generated by the bearing is measured by the driving device, the rotor shaft neck and the bearing inner ring, and measured data are transmitted to the data acquisition instrument 41, and the data acquisition instrument 41 is also a common measuring instrument, and has functions of displaying, signal amplifying, filtering and the like, and the functions are not repeated here; the clamp splice 44 is fixed on the mounting frame 43 through the fixing bolt II 45, can fix the sensor 46, also conveniently change the sensor 46 simultaneously, when measuring the vibration of mechanical equipment, select magneto-electric speed sensor, measure the vibration that produces when the mechanical equipment operation through magneto-electric speed sensor's probe and mechanical equipment's shell laminating, the line body of sensor 46 passes wire casing 14 and is connected with data acquisition appearance 41.

Specifically, as shown in fig. 1, the height adjusting mechanism 3 includes a supporting seat 32 fixedly connected to one side of the base 1, a plurality of guide posts 33 penetrating through and inserted into the supporting seat 32, a lifting seat 31 fixedly connected to one end of the plurality of guide posts 33, a second screw 34 rotatably connected to a side of the lifting seat 31 adjacent to the supporting seat 32, and a driving mechanism 35 fixedly connected to a side of the lifting seat 31 facing away from the supporting seat 32.

Through adopting above-mentioned technical scheme, can drive elevating seat 31 through rotating screw rod two 34 and go up and down on supporting seat 32 to adjust the height of actuating mechanism 35, make the axle center of actuating mechanism 35 output shaft can be located same horizontal plane with the axle center of bearing, guide post 33 can play the effect of direction to elevating seat 31's lift.

Specifically, as shown in fig. 1 and 5, the clamping mechanism 2 includes a servo motor 21 fixedly connected to one side of the base 1, a first screw 22 with one end connected to the servo motor 21 and the other end rotatably connected to the inner wall of the movable slot 12, a movable seat 24 screwed to the first screw 22, and a clamping member fixedly connected to the movable seat 24. The clamping piece comprises an arc-shaped clamping seat 25 and a clamping block 6.

Through adopting above-mentioned technical scheme, can drive screw rod one 22 through servo motor 21 and rotate, screw rod one 22 rotates and can drive two movable seat 24 and move in opposite directions or move in opposite directions, realizes the centre gripping of bearing outer lane or cancel the centre gripping, and the centre gripping piece selects arc grip slipper 25 when fixing the bearing, selects grip slipper 6 when fixed spacing to mechanical equipment.

Specifically, as shown in fig. 5, the movable seat 24 is internally provided with a slot, and a bump is integrally formed on one side of the clamping member adjacent to the movable seat 24, and the bump is inserted into the slot and is fixed by a first fixing bolt 23. The arc clamping seat 25 has spacing flange 26 with the adjacent one side integrated into one piece of base 1, and arc clamping seat 25 deviates from one side with base 1 and be connected with spacing piece 28, spacing piece 28 is fixedly connected with guide bar 27 with the adjacent one side of arc clamping seat 25, and the inside guide way that holds guide bar 27 that has seted up of arc clamping seat 25, the helicoid groove 29 has still been seted up to the inside of arc clamping seat 25, and the spiro union has positioning bolt in the spacing piece 28, positioning bolt passes spacing piece 28 spiro union and gets into in the helicoid groove 29. The external threads on the two sides of the outer surface of the first screw rod 22 are symmetrically arranged.

Through adopting above-mentioned technical scheme, through screwing out fixing bolt one 23, can separate arc grip slipper 25 and movable seat 24, pull down arc grip slipper 25 from movable seat 24, fix grip block 6 on movable seat 24 through fixing bolt one 23, just can carry out the centre gripping to mechanical equipment's shell and fix, spacing flange 26 on the arc grip slipper 25 can play spacing effect to the bearing outer lane, cooperation spacing piece 28 can make the bearing outer lane spacing fix between spacing flange 26 and spacing piece 28, through the regulation to spacing piece 28 position, realize spacing regulation between spacing piece 28 and the spacing flange 26, be convenient for carry out the centre gripping fixedly to the bearing of different thickness.

Specifically, as shown in fig. 1 and 3, the pressing positioning mechanism 5 includes a sliding seat 52 slidingly connected in the guiding chute 13, a third screw 51 rotatably connected to one side of the sliding seat 52, a sloping block 53 fixed to a side of the sliding seat 52 away from the base 1, a fourth screw 54 screwed into the sloping block 53, and an arc-shaped pressing seat 55 rotatably connected to one end of the fourth screw 54, and the third screw 51 is screwed to the opposite end of the sliding seat 52, penetrates the base 1 and extends outwards.

Through adopting above-mentioned technical scheme, the position of slide 52 can be adjusted to the screw rod III 51 of rotation, and the screw rod IV 54 of rotation can be adjusted the position of arc pressure seat 55, adapts to the bearing of different external diameters, compresses tightly the left and right sides above the bearing inner race surface.

Working principle: after the bearing inner ring is fixedly connected with the rotor shaft neck, the bearing outer ring is placed between the two arc clamping seats 25, the first screw rod 22 can be driven to rotate through the servo motor 21, the first screw rod 22 can drive the two movable seats 24 to move in opposite directions to clamp the two sides below the outer surface of the bearing outer ring, meanwhile, the third screw rod 51 is rotated to enable the sliding seat 52 to move in the bearing direction, the fourth screw rod 54 is rotated to enable the arc pressing seat 55 to approach the bearing outer ring and compress the two sides above the outer surface of the bearing outer ring, fixing of the bearing outer ring is completed, the second screw rod 34 can drive the lifting seat 31 to lift on the supporting seat 32, so that the height of the driving mechanism 35 can be adjusted, the axis of an output shaft of the driving mechanism 35 can be located on the same horizontal plane with the axis of the bearing, the second screw rod 34 can drive the lifting seat 31 to lift on the supporting seat 32, so that the height of the output shaft of the driving mechanism 35 can be located on the same horizontal plane with the axis of the bearing; the first fixing bolt 23 is screwed out, the arc-shaped clamping seat 25 and the movable seat 24 can be separated, the arc-shaped clamping seat 25 is detached from the movable seat 24, the clamping block 6 is fixed on the movable seat 24 through the first fixing bolt 23, the servo motor 21 can drive the first screw 22 to rotate, the first screw 22 can drive the two movable seats 24 to move in opposite directions, the two clamping blocks 6 are driven to move in opposite directions to clamp and fix the outer surface of the mechanical equipment, the second fixing bolt 45 is unscrewed from the mounting frame 43, the clamping block 44 is detached from the mounting frame 43, the sensor 46 is replaced by a magneto-electric speed sensor, the sensor 46 is controlled to descend, so that the probe of the sensor 46 is attached to the shell of the mechanical equipment to measure vibration generated during operation of the mechanical equipment, and the device can measure relative vibration of a rotor journal and vibration of the mechanical equipment.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. A vibrating meter comprising a base (1), characterized in that: the novel multifunctional portable device is characterized in that a groove (11) is formed in the base (1), a guide chute (13) is formed in the inner wall of the groove (11), a movable groove (12) and a wire groove (14) which are communicated with the groove (11) are formed in the base (1), a clamping mechanism (2) is connected in the movable groove (12), a height adjusting mechanism (3) is fixedly connected to one side of the base (1), and a detecting mechanism (4) is connected to the other side of the base (1);

the detection mechanism (4) comprises an electric push rod (42) fixedly connected to one side of the base (1) and a data acquisition instrument (41), a mounting frame (43) fixedly connected to the telescopic end of the electric push rod (42), a clamping block (44) connected to the mounting frame (43), a fixing bolt II (45) for fixing the clamping block (44) to the mounting frame (43), and a sensor (46) clamped and limited in the mounting frame (43) by the clamping block (44) and connected with the data acquisition instrument (41), wherein the guiding chute (13) is in sliding connection with a pressing and positioning mechanism (5).

2. A vibratory meter as set forth in claim 1 wherein: the telescopic end of the electric push rod (42) penetrates through the base (1) and enters the groove (11), and the sensor (46) comprises a non-contact eddy current displacement sensor (46) and a magneto-electric speed sensor (46).

3. A vibratory meter as set forth in claim 1 wherein: the height adjusting mechanism (3) comprises a supporting seat (32) fixedly connected to one side of the base (1), a plurality of guide posts (33) penetrating through the supporting seat (32), a lifting seat (31) fixedly connected with one end of each guide post (33), a screw rod II (34) rotatably connected to the adjacent side of the lifting seat (31) and the supporting seat (32), and a driving mechanism (35) fixedly connected to the deviating side of the lifting seat (31) and the supporting seat (32).

4. A vibratory meter as set forth in claim 1 wherein: the clamping mechanism (2) comprises a servo motor (21) fixedly connected to one side of the base (1), a first screw rod (22) with one end connected with the servo motor (21) and the other end rotationally connected with the inner wall of the movable groove (12), a movable seat (24) screwed on the first screw rod (22) and a clamping piece fixedly connected to the movable seat (24).

5. The vibration measuring instrument of claim 4, wherein: the clamping piece comprises an arc clamping seat (25) and a clamping block (6), a slot is formed in the movable seat (24), a protruding block is integrally formed on one side, adjacent to the movable seat (24), of the clamping piece, and the protruding block is inserted into the slot and fixed through a first fixing bolt (23).

6. A vibratory meter as set forth in claim 5 wherein: the utility model discloses a novel arc clamping seat, including base (1), arc clamping seat (25), locating bolt passes locating piece (28) spiro union and gets into in helicoidal groove (29), arc clamping seat (25) adjacent one side integrated into one piece has limit flange (26) with base (1), and arc clamping seat (25) deviate from one side and be connected with spacing piece (28), spacing piece (28) and adjacent one side fixedly connected with guide bar (27) of arc clamping seat (25), and inside the offered of arc clamping seat (25) hold the guide way of guide bar (27), helicoidal groove (29) has still been offered to inside arc clamping seat (25), and the spiro union has locating bolt in spacing piece (28).

7. A vibratory meter as set forth in claim 1 wherein: the pushing-down positioning mechanism (5) comprises a sliding seat (52) which is slidingly connected in the guide sliding groove (13), a screw rod III (51) which is rotatably connected to one side of the sliding seat (52), an inclined block (53) which is fixed to the side, away from the base (1), of the sliding seat (52), a screw rod IV (54) which is in threaded connection with the inclined block (53), and an arc-shaped pressing seat (55) which is rotatably connected with one end of the screw rod IV (54), wherein the screw rod III (51) and one end, away from the sliding seat (52), of the screw rod III are in threaded connection with the base (1) and extend outwards.

8. The vibration measuring instrument of claim 4, wherein: external threads on two sides of the outer surface of the first screw rod (22) are symmetrically arranged.