CN220982544U

CN220982544U - Rotor balance testing machine based on vibration analysis

Info

Publication number: CN220982544U
Application number: CN202323073031.3U
Authority: CN
Inventors: 房井宝; 黄龙
Original assignee: Yunnan Fenjing Electronic Technology Co ltd
Current assignee: Yunnan Fenjing Electronic Technology Co ltd
Priority date: 2023-11-15
Filing date: 2023-11-15
Publication date: 2024-05-17
Anticipated expiration: 2033-11-15

Abstract

The utility model relates to the technical field of rotor dynamic balance test, and provides a rotor balance test machine based on vibration analysis, which comprises a test bench and rotating wheels, wherein the middle part of the upper part of the test bench is provided with electric telescopic rods I, the electric telescopic rods I are provided with four, the upper part of each electric telescopic rod I is provided with a motor case I, the upper part of the inner part of each motor case I is provided with a belt, the top end of the inner part of each belt is provided with a rotating rod, the left side of each rotating rod is provided with a limiting seat I, the rotating rods are in rotary connection with the limiting seats I, the rotating wheels are arranged in the limiting seats I, the rotating rods and the rotating wheels are in an integrated structure, the upper part of each rotating wheel is provided with a motor rotor, the left side of each motor rotor is provided with a fixing groove I, the heights of the rotating wheels are adjusted by controlling the lengths of the electric telescopic rods I, and the rotating wheels with different sizes can be tightly attached to the bottom surfaces of the motor rotor when detection is performed, and the vibration analysis on the surfaces of the motor rotor is convenient.

Description

Rotor balance testing machine based on vibration analysis

Technical Field

The utility model relates to the technical field of rotor dynamic balance test, in particular to a rotor balance test machine based on vibration analysis.

Background

The rotor balancing machine is a machine for measuring the unbalance amount and position of a rotor, the rotor is subjected to rotation test by the rotor balancing machine, the unbalance amount of the rotor is corrected by measured data, the mass distribution of the rotor relative to an axis can be improved, vibration generated when the rotor rotates or vibration force acting on a bearing is reduced to be within an allowable range, and the rotor balancing machine is an indispensable device for reducing vibration, improving performance and improving quality.

The utility model discloses a generator rotor dynamic balance test all-in-one machine, the publication number is CN211651940U, the utility model provides a "generator rotor dynamic balance test all-in-one machine", when having solved current device rotor test, the rotor is because bulky, very inconvenient when installing at the test machine, intensity of labour is big, and is with high costs, be unfavorable for carrying out the problem of generator rotor test, it includes test base, bracing piece, crossbeam, mobile mechanism, electric hoist, placement mechanism, electric hoist switch, mobile motor switch, rotor, test motor and casing, the top at test base both ends all is fixed with the bracing piece, and the top welding of bracing piece has the crossbeam, and one side welding in the middle part of the crossbeam has mobile mechanism, and electric hoist is installed to mobile mechanism's bottom, and the placement mechanism is provided with to the bottom of electric hoist switch, and this utility model novel structure, and very inconvenient for use, the installation when being convenient for carrying out the dynamic balance test of large-scale generator rotor, need not be favorable to carry out test "when the motor rotor is too big, have certain guard action to the motor rotor, and motor rotor is in the motor rotor carries out the rotation, and is because of carrying out the rotor is big, and rotor is difficult to carry out the relative rotation device because of the high in the rotation and the corresponding rotation, the device that leads to carrying out the measurement of the high, and the vibration device is not able to be carried out the corresponding to be accurate in the vibration measurement, the relative to the measurement process is made to the measurement of the relative, the result is not able to be well to be analyzed to be based on the relative to the measurement device.

Disclosure of utility model

The utility model aims to provide a rotor balance testing machine based on vibration analysis, which solves the problems that the corresponding record cannot be made on the rotation speed of a rotor and the vibration testing process and result of dynamic balance in the related art, so that relatively accurate analysis cannot be made, and the specific position of the unbalance of the rotor is difficult to judge.

The technical scheme of the utility model is as follows:

The utility model provides a rotor balance test machine based on vibration analysis, includes testboard and runner, the top middle part of testboard is provided with electric telescopic handle one, and electric telescopic handle one is provided with four, electric telescopic handle one's top is provided with motor case one, and motor case one's inside top is provided with the belt, the inside top of belt is provided with the bull stick, and the left side of bull stick is provided with spacing seat one, the bull stick is connected for rotating with spacing seat one, the runner sets up in spacing seat one's inside, bull stick and runner are integrated into one piece structure, the top of runner is provided with motor rotor, and motor rotor's left side outside is provided with fixed slot one, fixed slot one's outside is provided with the fixed plate.

Preferably, the electric telescopic rods II are arranged on the front side and the rear side of the upper portion of the fixing plate, the connecting rods I are arranged on the upper portion of the electric telescopic rods II, the limiting seats II are arranged in the middle of the lower portion of the connecting rods I, and the fixing wheels I are arranged in the lower portion of the limiting seats II.

Preferably, the right side outside of motor rotor is provided with fixed slot two, and the outside of fixed slot two is provided with the movable plate, the top of movable plate is provided with electric telescopic handle three, and electric telescopic handle three's top is provided with connecting rod two, the below middle part of connecting rod two is provided with the tight pulley two.

Preferably, the slider is arranged below the moving plate, two sliders are arranged, a sliding groove is formed in the outer portion of the slider, and the slider is in sliding connection with the sliding groove.

Preferably, a fixing rod is arranged above the rear side of the fixing plate, and an electric telescopic rod IV is arranged in front of the fixing rod.

Preferably, the front of the electric telescopic rod IV is provided with a signal converter, the front of the signal converter is provided with an induction groove, the induction layer is in an integrated structure with the induction groove.

Preferably, a second motor box is arranged on the rear side above the right side of the test board, and a bearing is arranged on the left side of the second motor box.

Preferably, a screw rod is arranged on the left side of the bearing, a threaded ring is arranged outside the screw rod, the screw rod is rotationally connected with the threaded ring, and the threaded ring and the movable plate are of an integrated structure.

The utility model has the beneficial effects that:

1. the motor box I drives the belt to rotate, the belt drives the rotating rod to rotate, the rotating rod drives the rotating wheel to rotate, the rotating wheel drives the motor rotor to rotate, the motor rotor starts to rotate at a high speed, the length of the motor telescopic rod I is controlled through the motor, the height of the rotating wheel can be correspondingly adjusted according to the height of the bottom surface of the motor rotor, the rotating wheel can be tightly attached to the bottom surface of the motor rotor when the motor rotor with different sizes is detected, the rotating wheel drives the motor rotor to rotate to the greatest extent, the rotating speed of the motor rotor is improved, and meanwhile, a user can sense an induction layer, so that the user can analyze the motor rotor conveniently.

2. The sensing layer starts to record the rotational speed of every position of this altitude on the motor rotor, simultaneously with the inside of response information conduction to the sensing groove, the rethread sensing groove is with signal transducer conduction to signal transducer's inside, the rethread signal transducer sees the response signal and changes the signal of telecommunication, on the display screen at receiver place with the signal conduction again, the vibration frequency that the sensing layer of user accessible display top sensed this moment, the signal diagram of formation, whether this motor rotor is balanced, so made things convenient for the user to judge the state of turning of this motor rotor's dynamic balance, can be with motor rotor's vibration frequency conduction to the display on the while, the user has made things convenient for judging, the four controllable sensing layer of electric telescopic handle distance from motor rotor simultaneously, the device has made things convenient for detecting the rotor of different diameter sizes, the state of sensing layer and motor rotor surface non-laminating has been avoided simultaneously, detection efficiency has been improved.

3. The left end of the motor rotor is placed on the first fixed groove inside the fixed plate, the second electric telescopic rod is controlled, the second electric telescopic rod is shortened downwards, the first connecting rod is driven to move downwards, the limiting seat is driven to move downwards through the connecting rod, the first fixed wheel is driven to move downwards through the second limiting seat, the left end of the motor rotor is fixed, the right end of the motor rotor is placed on the second fixed groove inside the movable plate, the third electric telescopic rod is controlled, the third electric telescopic rod is shortened downwards, the connecting rod is driven to move downwards, the second fixed wheel is driven to move downwards through the second connecting rod, the right end of the motor rotor is fixed, and accordingly, the left end and the right end of the motor rotor are fixed through the principle of two points and one line, so that the motor rotor can keep corresponding dynamic balance in the rotation process, the motor rotor has certain limiting fixing performance in the rotation process, and the problem that the rotor moves in the rotation process is avoided.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a front perspective view of the present utility model;

FIG. 2 is a schematic perspective view of a mobile plate according to the present utility model;

FIG. 3 is a schematic diagram of a signal converter according to the present utility model;

FIG. 4 is a schematic view of a three-dimensional structure of a screw rod according to the present utility model;

FIG. 5 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

In the figure: 1. a test bench; 2. an electric telescopic rod I; 3. a first motor case; 4. a belt; 5. a rotating rod; 6. a first limiting seat; 7. a rotating wheel; 8. a motor rotor; 9. a first fixing groove; 10. a fixing plate; 11. an electric telescopic rod II; 12. a first connecting rod; 13. a second limiting seat; 14. a first fixed wheel; 15. a second fixing groove; 16. a moving plate; 17. an electric telescopic rod III; 18. a second connecting rod; 19. a second fixed wheel; 20. a slide block; 21. a chute; 22. a fixed rod; 23. an electric telescopic rod IV; 24. a signal converter; 25. an induction tank; 26. an induction layer; 27. a second motor case; 28. a bearing; 29. a screw rod; 30. a threaded ring.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill 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.

As shown in fig. 1-5, the present embodiment provides a rotor balance testing machine based on vibration analysis, including a testing table 1 and a rotating wheel 7, wherein an electric telescopic rod 12 is arranged in the middle of the upper part of the testing table 1, four electric telescopic rods 2 are arranged, a motor case 13 is arranged above the electric telescopic rod 1, a belt 4 is arranged above the inner part of the motor case 1, a rotating rod 5 is arranged at the top end of the inner part of the belt 4, a limiting seat 1 is arranged at the left side of the rotating rod 5, the rotating rod 5 is in rotational connection with the limiting seat 6, the rotating wheel 7 is arranged in the limiting seat 6, the rotating rod 5 and the rotating wheel 7 are in an integrated structure, a motor rotor 8 is arranged above the rotating wheel 7, a fixing groove 1 is arranged outside the left side of the motor rotor 8, a fixing plate 10 is arranged outside the fixing groove 1, two electric telescopic rods 11 are arranged on the front side and the rear side of the upper part of the fixing plate 10, the upper part of the electric telescopic rod II 11 is provided with a connecting rod I12, the middle part of the lower part of the connecting rod I12 is provided with a limiting seat II 13, the lower part of the limiting seat II 13 is internally provided with a fixed wheel I14, the right side of the motor rotor 8 is externally provided with a fixed groove II 15, the outside of the fixed groove II 15 is provided with a movable plate 16, the upper part of the movable plate 16 is provided with an electric telescopic rod III 17, the upper part of the electric telescopic rod III 17 is provided with a connecting rod II 18, the middle part of the lower part of the connecting rod II 18 is provided with a fixed wheel II 19, the downward moving distance of the fixed wheel I14 can be controlled by controlling the electric telescopic rod II 11, the bottom surface of the fixed wheel I14 is contacted with the upper top surface of the motor rotor 8, the bottom surface of the fixed wheel II 19 is contacted with the right side top surface of the motor rotor 8 by controlling the electric telescopic rod III 17, and the right end of the motor rotor 8 is fixed, therefore, the moving distance of the first fixed wheel 14 and the second fixed wheel 19 is controlled by controlling the second electric telescopic rod 11 and the third electric telescopic rod 17, the first fixed wheel 14 and the second fixed wheel 19 can be fixed together with the left end and the right end of the motor rotor 8 in a relatively attached mode, a certain point in the upper portion of the motor rotor 8 can be fixed, meanwhile, the inner surfaces of the first fixed groove 9 and the second fixed groove 15 are provided with a certain radian, the first fixed groove 9 and the second fixed groove 15 enable the lower portions of the left end and the right end of the motor rotor 8 to be attached as much as possible, a certain point in the middle of the lower portion of the motor rotor 8 can be fixed, and therefore the motor rotor 8 is in a relatively stable dynamic balance state in the rotating process.

As shown in fig. 1 to 4, a slide 20 is arranged below the moving plate 16, two slide 20 are arranged, a slide groove 21 is arranged outside the slide 20, the slide 20 is in sliding connection with the slide groove 21, a fixed rod 22 is arranged above the rear side of the fixed plate 10, an electric telescopic rod four 23 is arranged in front of the fixed rod 22, a signal converter 24 is arranged in front of the electric telescopic rod four 23, an induction groove 25 is arranged in front of the signal converter 24, an induction layer 26 is arranged, the induction layer 26 and the induction groove 25 are in an integrated structure, the induction layer 26 can sense the rotating speed and the vibration frequency of the surface of the motor rotor 8 and perform corresponding sensing at each point on the circumference of the position, meanwhile, the induction layer 26 can conduct an induction signal to the induction groove 25 and conduct the signal to the signal converter 24 through the induction groove 25, and see the signal through signal converter 24 and change signal into the signal and relay, the right side top rear side of testboard 1 is provided with motor case two 27, and the left side of motor case two 27 is provided with bearing 28, the left side of bearing 28 is provided with lead screw 29, and the outside of lead screw 29 is provided with screwed ring 30, lead screw 29 is connected for rotating with screwed ring 30, screwed ring 30 and movable plate 16 are integrated structure, the motor body in the motor case two 27 of accessible control, thereby screwed ring 30 can remove to the relatively suitable position, thereby avoid the user to need remove and fix movable plate 16 and operate the assistance when carrying out contrast motor rotor 8, and then improved the cost of labor, thereby reduced the cost of labor to a certain extent, work efficiency has been improved simultaneously.

In this embodiment, when in use, the length of the rotor can be visually checked, the motor body in the second motor case 27 is driven by the motor body to rotate by the bearing 28, the screw rod 29 is driven by the bearing 28 to rotate by the screw rod 29, the threaded ring 30 is driven by the screw rod 29, because the threaded ring 30 is fixed at the rear of the moving plate 16, and the moving plate 16 is fixed at the chute 21 by the sliding block 20, so that the threaded ring 30 moves leftwards under the driving of the screw rod 29, the moving plate 16 is driven by the threaded ring 30 to move leftwards, the sliding block 20 is driven by the moving plate 16 to move leftwards on the chute 21, so that the moving plate 16 moves to a proper placement position which is more suitable for the motor rotor 8, then the left end of the motor rotor 8 is placed on the first fixed groove 9 in the fixed plate 10, the second electric telescopic rod 11 is controlled to be shortened downwards, and the first connecting rod 12 is driven to move downwards, the first connecting rod 12 drives the second limiting seat 13 to move downwards, the second limiting seat 13 drives the first fixed wheel 14 to move downwards to fix the left end of the motor rotor 8, the right end of the motor rotor 8 is placed on the second fixed groove 15 in the moving plate 16, the third electric telescopic rod 17 is controlled to shorten downwards, the second connecting rod 18 is driven to move downwards, the second connecting rod 18 drives the second fixed wheel 19 to move downwards to fix the right end of the motor rotor 8, at the moment, the fourth electric telescopic rod 23 can be controlled to extend forwards, the fourth electric telescopic rod 23 drives the signal converter 24 to move forwards, the sensing groove 25 is driven to move forwards through the signal converter 24, the sensing layer 26 is driven to move forwards through the sensing groove 25, the inner surface of the sensing layer 26 is attached to the rear side surface of the motor rotor 8, the servo motor in the first motor box 3 is started, the motor case I3 drives the belt 4 to rotate, the belt 4 drives the rotary rod 5 to rotate, the rotary rod 5 drives the rotary wheel 7 to rotate, the rotary wheel 7 drives the motor rotor 8 to rotate, the motor rotor 8 starts to rotate at a high speed, meanwhile, the induction layer 26 starts to record the rotating speed of each position of the height on the motor rotor 8, induction information is conducted to the inside of the induction groove 25, the signal converter 24 is conducted to the inside of the signal converter 24 through the induction groove 25, the induction signal is converted into an electric signal through the signal converter 24, the electric signal is conducted to a display screen where the receiver is located, at the moment, a signal diagram formed by the vibration frequency sensed by a user through the induction layer 26 above the display is used for analyzing whether the motor rotor 8 is balanced or not, if the motor rotor 8 is unbalanced, the position of an unbalanced signal can be analyzed in the signal diagram, and then the position of the unbalanced signal can be modified according to analyzed content.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a rotor balance test machine based on vibration analysis, its characterized in that, including testboard (1) and runner (7), the top middle part of testboard (1) is provided with electric telescopic handle one (2), and electric telescopic handle one (2) is provided with four, the top of electric telescopic handle one (2) is provided with motor case one (3), and the inside top of motor case one (3) is provided with belt (4), the inside top of belt (4) is provided with bull stick (5), and the left side of bull stick (5) is provided with spacing seat one (6), bull stick (5) are connected for rotating with spacing seat one (6), runner (7) set up in the inside of spacing seat one (6), bull stick (5) and runner (7) are integrated structure, the top of runner (7) is provided with motor rotor (8), and the left side outside of motor rotor (8) is provided with fixed slot one (9), the outside of fixed slot one (9) is provided with fixed plate (10).

2. The rotor balance testing machine based on vibration analysis according to claim 1, wherein the front side and the rear side of the upper portion of the fixing plate (10) are respectively provided with an electric telescopic rod II (11), a connecting rod I (12) is arranged above the electric telescopic rods II (11), a limiting seat II (13) is arranged in the middle of the lower portion of the connecting rod I (12), and a fixing wheel I (14) is arranged in the lower portion of the limiting seat II (13).

3. The rotor balance testing machine based on vibration analysis according to claim 1, wherein a second fixing groove (15) is formed in the outer portion of the right side of the motor rotor (8), a moving plate (16) is arranged on the outer portion of the second fixing groove (15), an electric telescopic rod III (17) is arranged above the moving plate (16), a connecting rod II (18) is arranged above the electric telescopic rod III (17), and a second fixing wheel II (19) is arranged in the middle of the lower portion of the connecting rod II (18).

4. A rotor balance testing machine based on vibration analysis according to claim 3, characterized in that a sliding block (20) is arranged below the moving plate (16), two sliding blocks (20) are arranged, a sliding groove (21) is arranged outside the sliding block (20), and the sliding block (20) is in sliding connection with the sliding groove (21).

5. The rotor balance testing machine based on vibration analysis according to claim 1, wherein a fixing rod (22) is arranged above the rear side of the fixing plate (10), and an electric telescopic rod four (23) is arranged in front of the fixing rod (22).

6. The rotor balance testing machine based on vibration analysis according to claim 5, wherein a signal converter (24) is arranged in front of the electric telescopic rod IV (23), an induction groove (25) is arranged in front of the signal converter (24), an induction layer (26) is arranged in front of the signal converter (24), and the induction layer (26) and the induction groove (25) are of an integrated structure.

7. The rotor balance testing machine based on vibration analysis according to claim 1, wherein a second motor case (27) is arranged on the upper right rear side of the test bench (1), and a bearing (28) is arranged on the left side of the second motor case (27).

8. The rotor balance testing machine based on vibration analysis according to claim 7, wherein a screw rod (29) is arranged on the left side of the bearing (28), a threaded ring (30) is arranged outside the screw rod (29), the screw rod (29) is in rotary connection with the threaded ring (30), and the threaded ring (30) and the movable plate (16) are of an integrated structure.