Non-contact vibration detector for fan

Abstract

The utility model relates to the technical field of fan vibration detection, and discloses a fan non-contact vibration detector, which comprises a fan shell and a mounting rack, a first motor is fixedly connected onto the mounting rack, and the output end of the first motor is fixedly connected with a threaded rod rotationally connected with the mounting rack through a coupler. According to the non-contact vibration detector for the fan, the mounting rack is fixed to the outer side of the fan shell, then the detection groove is formed in the top of the fan shell, and then the threaded rod drives the transmission block to move, so that the detection accuracy is improved, and the detection efficiency is improved. The transmission block drives the laser vibration detection sensor to move left and right, the laser vibration detection sensor detects all positions of the surface of the fan body, multi-position non-contact vibration detection of the surface of the fan body is achieved, the problems of the fan body can be found in time, and some risks are prevented. And the detection effect on the vibration of the fan is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan vibration detection technical field, concretely relates to a fan non -contact type vibration detection machine. BACKGROUND

[0002] The operation safety and stability of large wind turbine generator units have a vital role. For rotating equipment, vibration has the most direct reflection on the equipment state. Vibration analysis and measurement play a very important role in the fault diagnosis of rotating machinery. If it cannot be controlled and found in time, it will bring great safety hazards to the whole system and cause permanent damage in subsequent operation.

[0003] At present, the vibration monitoring of the fan unit is often only the vibration sensor installed on the surface of the motor of the fan body to carry out contact type vibration detection of the fan, which cannot detect multiple positions on the surface of the motor, such as the vibration of the motor transmission shaft and the connection between the transmission shaft and the fan blade, resulting in poor fan vibration detection effect, and the position of the vibration cannot be found in time, causing the problem of subsequent maintenance trouble. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a fan non -contact type vibration detection machine, which solves the deficiencies in the above background technology.

[0005] The purpose of the utility model can be realized by the following technical scheme:

[0006] A fan non -contact type vibration detection machine, comprising a fan shell,

[0007] A mounting frame is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a threaded rod rotatably connected with the mounting frame through a shaft coupling, the outer surface of the threaded rod is threadedly matched with a transmission block slidably connected with the mounting frame, and the bottom of the transmission block is provided with a laser vibration detection mechanism for vibration detection of the surface of the motor.

[0008] The outer surface of the fan shell is provided with a detection groove, and the fan shell is fixedly connected with a fan body.

[0009] As a further scheme of the utility model, the laser vibration detection mechanism comprises a mounting frame fixedly connected with the transmission block, two transmission shafts are rotatably connected in the mounting frame, a connecting block is fixedly connected between the two transmission shafts, a laser vibration detection sensor is fixedly connected on the connecting block, one end of one of the transmission shafts is fixedly connected with a second motor fixedly connected with the mounting frame through a shaft coupling, and a cleaning mechanism connected with the mounting frame is arranged in the mounting frame.

[0010] As a further scheme of the utility model: the cleaning mechanism includes transmission column that is slidably connected with the mounting frame, one end of the transmission column is fixedly connected with the connecting frame, the connecting frame is slidably connected with the sponge, the other end of the transmission column is fixedly connected with the first electric telescopic rod that is fixedly connected with the mounting frame through the connecting plate, the lower portion of the sponge is provided with the flushing mechanism that is connected with the mounting frame, and the flushing mechanism is used for flushing the sponge.

[0011] As a further scheme of the utility model: the flushing mechanism includes the water tank that is fixedly connected with the mounting frame, one side of the water tank is fixedly connected with the water pump through the pipeline, the output end of the water pump is fixedly connected with the water jet pipe that is fixedly connected with the mounting frame through the hose, the water jet pipe is provided with the water jet head, the second electric telescopic rod is fixedly connected in the connecting frame, and one end of the second electric telescopic rod is fixedly connected with the extrusion block.

[0012] As a further scheme of the utility model: the top of the water tank is fixedly connected with the water replenishing pipe.

[0013] As a further scheme of the utility model: the mounting frame is threadedly connected with the adjusting bolt, the bottom end of the adjusting bolt is rotatably connected with the supporting plate, and the fixing hole is formed in the supporting plate.

[0014] The utility model discloses beneficial effects are as follows:

[0015] (1) through fixing the mounting frame on the outside of the fan shell, then through setting the detection groove on the top of the fan shell, then through the threaded rod and drive the transmission block to move, the transmission block drives the laser vibration detection sensor to move left and right, and the laser vibration detection sensor detects each position on the surface of the fan main body, realizes the multi-position non-contact vibration detection of the surface of the fan main body, is convenient for finding the problem of the fan main body in time, prevents some risks from happening, and greatly improves the detection effect of the vibration of the fan.

[0016] (2) through the cleaning mechanism, the surface that the laser vibration detection sensor emits is washed and cleaned during the process of detecting the fan main body, so that the dust on the surface is cleaned out, prevents the dust from blocking the irradiation of laser, influences the vibration detection of the fan main body, improves the stability of the vibration detection of the fan main body, and the sponge of the cleaning mechanism is cleaned automatically, realizes the repeated use of the sponge, and improves the stability of cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0017] The utility model will be further explained in connection with the drawings.

[0018] Figure 1 It is the first perspective drawing of external structure of the utility model;

[0019] Figure 2 This is a second stereoscopic view of the external structure of the utility model;

[0020] Figure 3 It is a three-dimensional diagram of the internal structure of the utility model;

[0021] Figure 4 This utility model Figure 2 A magnified view of middle A;

[0022] Figure 5 It is an enlarged view of B in the utility model 3.

[0023] In the figure: 1. Fan housing; 2. Mounting frame; 3. First motor; 4. Threaded rod; 5. Transmission block; 6. Detection slot; 7. Fan body; 8. Mounting frame; 9. Transmission shaft; 10. Connecting block; 11. Laser vibration detection sensor; 12. Second motor; 13. Transmission column; 14. Connecting frame; 15. Sponge; 16. First electric telescopic rod; 17. Water tank; 18. Water pump; 19. Water spray pipe; 20. Water spray head; 21. Second electric telescopic rod; 22. Extrusion block; 23. Water supply pipe; 24. Adjusting bolt; 25. Support plate. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] See also Figures 1-5As shown, the utility model is a kind of fan non-contact vibration detection machine, including fan casing 1 and mounting bracket 2, the outer surface of fan casing 1 is equipped with detection groove 6, fan casing 1 is fixedly connected with fan main body 7, first motor 3 is fixedly connected on mounting bracket 2, first motor 3 is controlled by PLC programming program, can control first motor 3 and rotate and rotate angle, the output end of first motor 3 is fixedly connected with the threaded rod 4 of rotationally connected with mounting bracket 2 by coupling, the outer surface of threaded rod 4 is threadedly cooperated with the transmission block 5 of slidingly connected with mounting bracket 2, the bottom of transmission block 5 is provided with laser vibration detection mechanism, for vibration detection to motor surface, laser vibration detection mechanism includes the mounting frame 8 of fixedly connected with transmission block 5, two transmission shafts 9 are rotatably connected in mounting frame 8, connecting block 10 is fixedly connected between two transmission shafts 9, laser vibration detection sensor 11 is fixedly connected on connecting block 10, laser vibration detection sensor 11 is prior art, so here do not make too much repetition, while laser vibration detection sensor 11 and laser vibration detection device main body electrically connected, one end of one transmission shaft 9 is fixedly connected with the second motor 12 of fixedly connected with mounting frame 8 by coupling, second motor 12 is controlled by PLC programming program, can control second motor 12 and rotate and rotate angle, cleaning mechanism is provided in mounting frame 8 and connected with mounting bracket 2, cleaning mechanism is used to clean laser vibration detection sensor 11 emission head, adjusting bolt 24 is screw-connected on mounting bracket 2, the bottom end of adjusting bolt 24 is rotatably connected with support plate 25, and fixed hole is formed in support plate 25.

[0027] By rotating the adjusting bolt 24, the adjusting bolt 24 drives the support plate 25 to move, and then the fixing of the support plate 25 is realized. Then the second motor 12 drives the transmission shaft 9 and the connecting block 10 to rotate, the connecting block 10 drives the laser vibration detection sensor 11 to overturn to the lower side, and then the laser vibration detection sensor 11 is started. The laser vibration detection sensor 11 irradiates the surface of the fan body 7 through the monitoring groove, realizes the detection of the vibration on the surface of the motor of the fan body 7, and at the same time, the first motor 3 drives the threaded rod 4 to rotate, the threaded rod 4 drives the transmission block 5 to move, the transmission block 5 drives the installation frame 8 to move, the installation frame 8 drives the transmission shaft 9, the connecting block 10 and the laser vibration detection sensor 11 to move, realizes the vibration detection of the motor position of the fan body 7, the vibration detection of the motor transmission shaft 9 and the vibration detection of the connection between the fan blade and the motor shaft, and at the same time, the number of revolutions of the first motor 3 is controlled by the PLC control program to determine the position of the abnormal vibration detected by the laser vibration detection sensor 11, realizes the multi-position non-contact precise vibration detection of the surface of the fan body 7, facilitates the timely discovery of the problems of the fan body 7, and greatly improves the detection effect of the fan vibration. At the same time, by rotating the adjusting bolt 24 on the mounting frame 2, the adjusting bolt 24 drives the support plate 25 to adjust, so that the detection equipment can detect different sizes of fans, and the applicability of the detection equipment is greatly improved.

[0028] Example two

[0029] Based on example one, please refer to Figures 2-5 As shown in FIG. 1, the cleaning mechanism includes a transmission column 13 slidably connected with the installation frame 8, one end of the transmission column 13 is fixedly connected with a connecting frame 14, the connecting frame 14 is slidably connected with a sponge 15, the other end of the transmission column 13 is fixedly connected with a first electric telescopic rod 16 fixedly connected with the installation frame 8 through a connecting plate, the lower side of the sponge 15 is provided with a flushing mechanism connected with the mounting frame 2, the flushing mechanism is used for flushing the sponge 15, the flushing mechanism includes a water tank 17 fixedly connected with the mounting frame 2, one side of the water tank 17 is fixedly connected with a water pump 18 through a pipeline, the output end of the water pump 18 is fixedly connected with a water spraying pipe 19 fixedly connected with the installation frame 8 through a hose, the water spraying pipe 19 is provided with a water spraying head 20, the connecting frame 14 is fixedly connected with a second electric telescopic rod 21, one end of the second electric telescopic rod 21 is fixedly connected with a pressing block 22, and the top of the water tank 17 is fixedly connected with a water replenishing pipe 23.

[0030] After detecting for a period of time, the transmission block 5 is moved to one side of the mounting frame 2 by the threaded rod 4, then the transmission shaft 9 is rotated by the second motor 12, the connecting block 10 and the laser vibration detection sensor 11 are turned over 180° by the transmission shaft 9, then the connecting plate and the transmission column 13 are moved by the first electric telescopic rod 16, the transmission column 13 drives the connecting frame 14 to move, the sponge 15 is moved by the connecting frame 14, the emitted end surface of the laser vibration detection sensor 11 is wiped by the sponge 15, so that the dust on the surface is cleaned out, preventing the dust from blocking the laser irradiation, affecting the vibration detection of the fan body 7, improving the stability of the vibration detection of the fan body 7, and at the same time, after wiping is completed, the water in the water tank 17 is pumped out by the water pump 18, then the water is input into the water spraying pipe 19 through the hose, then the water spraying head 20 on the water spraying pipe 19 sprays water to wash the sponge 15, so that the dust wiped on the surface of the sponge 15 is cleaned out, then the sponge 15 is extruded by the extrusion block 22 driven by the second electric telescopic rod 21, so that the sponge 15 is extruded, and the cleaning water cup is extruded out, realizing repeated use of the sponge 15 and improving the stability of cleaning.

[0031] The working principle of the utility model is: by rotating the adjusting bolt 24, the adjusting bolt 24 drives the supporting plate 25 to move, then the supporting plate 25 is fixed, the mounting frame 2 is fixed, then the transmission shaft 9 and the connecting block 10 are rotated by the second motor 12, the connecting block 10 drives the laser vibration detection sensor 11 to turn over to the lower side, then the laser vibration detection sensor 11 is started, the laser vibration detection sensor 11 irradiates the surface of the fan body 7 through the monitoring groove, realizes the vibration detection of the motor surface on the fan body 7, at the same time, the threaded rod 4 is rotated by the first motor 3, the transmission block 5 is moved, the mounting frame 8 is moved, the transmission shaft 9, the connecting block 10 and the laser vibration detection sensor 11 are moved by the mounting frame 8, realizing the vibration detection of the motor position of the fan body 7, the vibration detection of the motor transmission shaft 9 and the vibration detection of the connection between the fan blade and the motor shaft, realizing the multi-position non-contact vibration detection of the surface of the fan body 7, facilitating the timely discovery of the problems of the fan body 7, and greatly improving the detection effect of the fan vibration.

[0032] The above embodiment of the utility model is described in detail, but the content described can only be the preferred embodiment of the utility model, and cannot be considered as limiting the scope of the utility model. Any equivalent change and improvement within the scope of the utility model application shall still belong to the patent coverage range of the utility model.

Claims

1. A fan non-contact vibration detection machine, characterized in that, Including fan shell (1), The mounting frame (2) is fixedly connected with the first motor (3), the output end of the first motor (3) is fixedly connected with the threaded rod (4) which is rotatably connected with the mounting frame (2) through the shaft coupling, the outer surface of the threaded rod (4) is threadedly connected with the transmission block (5) which is slidably connected with the mounting frame (2), and the bottom of the transmission block (5) is provided with a laser vibration detection mechanism for vibration detection of the motor surface. The outer surface of the fan shell (1) is provided with a detection groove (6), and the fan shell (1) is fixedly connected with a fan body (7).

2. The non-contact vibration detection machine for a fan according to claim 1, characterized in that, The laser vibration detection mechanism comprises a mounting frame (8) fixedly connected with the transmission block (5), two transmission shafts (9) rotatably connected in the mounting frame (8), a connecting block (10) fixedly connected between the two transmission shafts (9), a laser vibration detection sensor (11) fixedly connected on the connecting block (10), and one end of one of the transmission shafts (9) is fixedly connected with a second motor (12) fixedly connected with the mounting frame (8) through the shaft coupling.

3. The non-contact vibration detection machine for a fan according to claim 2, characterized in that, The cleaning mechanism comprises a transmission column (13) slidably connected with the mounting frame (8), one end of the transmission column (13) is fixedly connected with a connecting frame (14), a sponge (15) is slidably connected in the connecting frame (14), the other end of the transmission column (13) is fixedly connected with a first electric telescopic rod (16) fixedly connected with the mounting frame (8) through the connecting plate, and a flushing mechanism connected with the mounting frame (2) is arranged below the sponge (15).

4. The non-contact vibration detection machine for a fan according to claim 3, characterized in that, The flushing mechanism comprises a water tank (17) fixedly connected with the mounting frame (2), a water pump (18) fixedly connected with one side of the water tank (17) through a pipeline, a water spraying pipe (19) fixedly connected with the mounting frame (8) through a hose connected with the output end of the water pump (18), a water spraying head (20) arranged on the water spraying pipe (19), a second electric telescopic rod (21) fixedly connected in the connecting frame (14), and an extrusion block (22) fixedly connected at one end of the second electric telescopic rod (21).

5. The non-contact vibration detection machine for a fan according to claim 4, characterized in that, The top of the water tank (17) is fixedly connected with a water replenishing pipe (23).

6. The non-contact vibration detection machine for a fan according to claim 1, characterized in that, The mounting frame (2) is threadedly connected with an adjusting bolt (24), the bottom end of the adjusting bolt (24) is rotatably connected with a supporting plate (25), and the supporting plate (25) is provided with a fixing hole.

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