CN114441049A - Real-time temperature monitoring device for synchronous motor - Google Patents

Abstract

The invention discloses a synchronous motor real-time temperature monitoring device which is used for monitoring the internal temperature of a synchronous motor in real time and comprises a thermal infrared imager, a data line and an observation cover, wherein the data line is used for connecting an external device and the thermal infrared imager, the observation cover is used for sealing an observation port of the synchronous motor, an observation hole is formed in the observation cover, and a lens of the thermal infrared imager is arranged right opposite to the observation hole so as to receive infrared radiation in the synchronous motor through the observation hole and convert the infrared radiation into an infrared thermograph which is transmitted to the external device through the data line. The temperature of each position in the synchronous motor is monitored through the infrared thermograph, the overtemperature fault of the synchronous motor is avoided, the stable operation of the synchronous motor is ensured, and the smooth production of steel rolling operation and the like is further ensured. In addition, the thermal infrared imager is arranged outside the synchronous motor, so that the installation is convenient and the replacement is convenient.

Description

A real-time temperature monitoring device for synchronous motor

technical field

The invention relates to the field of electrical technology, and more particularly, to a real-time temperature monitoring device for a synchronous motor.

Background technique

In the metallurgical industry, large and medium-sized synchronous motors are usually used to drive rolling mills for steel rolling operations. As the key equipment of the production line, the synchronous motor needs to be checked regularly during the shutdown of the equipment.

During regular inspection, in addition to external inspection, it is also necessary to open the four observation ports on both sides of the motor to check the insulation material inside the motor, the condition of the stator and rotor, etc. Problems such as partial iron core damage can avoid the fault that the motor temperature exceeds the normal range when the rated load is carried out, thereby affecting the normal production.

However, regular inspections cannot avoid the occurrence of synchronous motor failures, especially internal failures.

To sum up, how to monitor the internal fault of the synchronous motor in real time is an urgent problem to be solved by those skilled in the art.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide a real-time temperature monitoring device for a synchronous motor, which collects the infrared thermal image inside the synchronous motor in real time through an infrared thermal imager, so as to avoid the over-temperature fault of the synchronous motor and ensure the stable operation of the synchronous motor. .

In order to achieve the above object, the present invention provides the following technical solutions:

A real-time temperature monitoring device for a synchronous motor, used for real-time monitoring of the internal temperature of the synchronous motor, the real-time temperature monitoring device for a synchronous motor includes an infrared thermal imager, a data line for connecting peripherals and the infrared thermal imager, and a In the observation port cover that closes the observation port of the synchronous motor, the observation port cover is provided with an observation hole, and the lens of the infrared thermal imager is set facing the observation hole, so as to receive the said observation hole through the observation hole. The infrared radiation inside the synchronous motor is converted into an infrared thermal image and transmitted to the peripheral device by the data line.

Preferably, the observation hole is provided with a dust cover for preventing dust from entering the inside of the motor, the dust cover is sleeved outside the infrared thermal imager, and one end of the dust cover is connected to the observation port. The inner surface of the cover is attached.

Preferably, the inner surface of the observation port cover is provided with a dust cover fixing plate, the dust cover fixing plate is bolted to the inner surface of the observation port cover, and one end of the dust cover is connected to the dust cover Hood fixing plate connection.

Preferably, a bracket is provided below the infrared thermal imager, so that the center of the lens of the infrared thermal imager is aligned with the center of the observation hole.

Preferably, the observation hole is a rectangular hole, and the observation hole is larger than the field of view formed by the infrared thermal imager being tilted and rotated left and right by 15°.

Preferably, the bracket is U-shaped, and the bracket includes a top plate and side plates connected to both sides of the top plate.

Preferably, a reinforcing rib is provided between the top plate and the side plate.

Preferably, the number of the infrared thermal imagers is two, and the two infrared thermal imagers are arranged diagonally.

Preferably, the number of the infrared thermal imaging cameras is four, and the infrared thermal imaging cameras are in one-to-one correspondence with the observation port covers.

In the real-time temperature monitoring device for a synchronous motor provided by the present invention, the infrared thermal imager collects the infrared thermal image inside the synchronous motor in real time, and transmits it to the peripheral terminal monitor or software client through the data line, and the infrared thermal image The temperature of each position inside the synchronous motor is monitored to avoid the over-temperature fault of the synchronous motor, to ensure the stable operation of the synchronous motor, and to ensure the smooth production of steel rolling operations.

In addition, the infrared thermal imager is set outside the synchronous motor, which is convenient for installation and replacement.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative work.

1 is a schematic structural diagram of a specific embodiment of a real-time temperature monitoring device for a synchronous motor provided by the present invention;

Fig. 2 is the side sectional schematic diagram of Fig. 1;

FIG. 3 is a schematic view of the assembly of the dust cover fixing plate and the dust cover.

In Figure 1-Figure 3:

1 is the synchronous motor, 11 is the observation port cover, 12 is the observation port, 2 is the observation hole, 3 is the observation hole cover, 4 is the infrared thermal imager, 41 is the frame, 42 is the base, 5 is the bracket, 6 is the data Line, 7 is a dust cover, 8 is a dust cover fixing plate, and 9 is a bolt.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The core of the invention is to provide a real-time temperature monitoring device for a synchronous motor, which collects the infrared thermal image inside the synchronous motor in real time through an infrared thermal imager, so as to avoid the over-temperature fault of the synchronous motor and ensure the stable operation of the synchronous motor.

Please refer to FIG. 1-FIG. 3, FIG. 1 is a schematic structural diagram of a specific embodiment of a synchronous motor real-time temperature monitoring device provided by the present invention; FIG. 2 is a schematic side sectional view of FIG. 1; Assembly diagram of the dust cover.

The real-time temperature monitoring device for a synchronous motor provided by the present invention is used for real-time monitoring of the internal temperature of the synchronous motor. The real-time temperature monitoring device for the synchronous motor includes an infrared thermal imager 4, a data line 6 for connecting the peripheral device and the infrared thermal imager 4, and The observation port cover 11 used to close the observation port 12 of the synchronous motor 1, the observation port cover 11 is provided with an observation hole 2, and the lens of the infrared thermal imager 4 is set facing the observation hole 2, so as to receive the synchronous motor through the observation hole 2 1, the internal infrared radiation, and the infrared radiation is converted into an infrared thermal image and transmitted to the peripheral device by the data line 6.

It should be noted that the above-mentioned peripheral devices include a terminal monitor, a software client on a PC, and the like.

The infrared thermal imager 4 is used to convert the infrared radiation emitted by the components inside the synchronous motor 1 into a visible infrared thermal image, so as to judge the surface temperature of each component through the difference of the infrared thermal image, and then judge the internal components of the synchronous motor 1 whether a failure occurs.

The infrared thermal imager 4 includes an infrared lens, a frame 41 for installing the infrared lens, and a base 42 rotatably connected to the frame 41. The frame 41 is used to adjust the pitch angle of the infrared lens, and the base 42 is used to adjust the orientation of the infrared lens. horn. The type and model of the infrared thermal imager 4 are determined according to actual production needs, and will not be repeated here.

Referring to FIG. 2 , the infrared thermal imager 4 can be inserted into the observation hole 2 and the observation port 12 , so as to prevent the observation port cover 11 and the side wall of the synchronous motor 1 from blocking the infrared radiation entering the infrared thermal imager 4 . In order to prevent the infrared thermal imager 4 from being inserted too deep and affecting the normal operation of the internal components of the synchronous motor 1 , the infrared lens of the infrared thermal imager 4 is usually set so as not to exceed the inner side of the observation port 12 .

The specific number and distribution of the thermal imaging cameras 4 are related to the size and internal structure of the synchronous motor 1 in actual production. Preferably, the number of infrared thermal imagers 4 can be set to two, and the two infrared thermal imagers 4 are arranged diagonally.

The two infrared thermal imagers 4 are arranged diagonally, on the one hand, all components inside the synchronous motor 1 can be effectively monitored, and on the other hand, the required number of infrared thermal imagers 4 is small, which saves equipment costs.

Of course, the number of the infrared thermal imagers 4 can also be set to four, and the infrared thermal imagers 4 are in one-to-one correspondence with the observation port cover 11 to avoid the occurrence of monitoring dead spots.

Please refer to FIG. 1 , the four corners of the synchronous motor 1 are respectively provided with four observation ports 12 , and the corresponding four observation port covers 11 are provided with observation holes 2 and observation hole covers 3 for sealing the observation holes 2 . When the infrared thermal imager 4 is set outside, the observation hole cover 3 can be removed so that the infrared thermal imager 4 can receive infrared radiation; when the infrared thermal imager 4 is not set outside the observation hole 2, the observation hole cover 3 is used to seal the observation hole 2 to prevent Dust enters the inside of the synchronous motor 1 .

Of course, the observation hole 2 may be provided only on the observation port cover 11 .

In order to avoid high temperature, dust and other harsh environments affecting signal transmission, the infrared thermal imager 4 and the peripherals are connected through a data line 6 . In order to slow down the aging of the outer layer of the data cable 6 and prolong the service life of the data cable 6, preferably, the outer layer of the data cable 6 is provided with a threaded tube, and the outer layer of the data cable 6 is isolated from the high temperature dust environment through the threaded tube.

In this embodiment, the infrared thermal imager 4 collects the infrared thermal image inside the synchronous motor 1 in real time, and transmits it to the peripheral terminal monitor or software client through the data line 6, and monitors the synchronization through the infrared thermal image. The temperature of each position inside the motor 1 avoids the over-temperature fault of the synchronous motor 1, ensures the stable operation of the synchronous motor 1, and further ensures the smooth running of production such as steel rolling operations.

In addition, the infrared thermal imager 4 is arranged outside the synchronous motor 1, which is convenient for installation and replacement.

On the basis of the above embodiment, please refer to FIG. 2 , the observation hole 2 is provided with a dust cover 7 for preventing dust from entering the inside of the motor, the dust cover 7 is sleeved outside the infrared thermal imager 4, and the dust cover 7 One end is connected to the inner surface of the observation port cover 11 .

The material, size and connection method of the dust cover 7 are determined according to the actual production environment and the size of the infrared thermal imager 4 .

In this embodiment, the dust cover 7 is used to separate the interior of the synchronous motor 1 from the external environment, so as to prevent dust and the like from entering the interior of the synchronous motor 1 , thereby affecting the normal operation of various components inside the synchronous motor 1 .

Preferably, please refer to FIG. 2 and FIG. 3 , the inner surface of the observation port cover 11 is provided with a dust cover fixing plate 8 , and the dust cover fixing plate 8 is bolted to the inner surface of the observation port cover 11 , and one end of the dust cover 7 is Connect to the dust cover fixing plate 8.

Please refer to FIG. 3 , the dust cover fixing plate 8 is a frame structure, and the four sides of the dust cover fixing plate 8 are provided with several bolt mounting holes for installing the bolts 9 , and the dust cover 7 is connected to the dust cover by bonding or the like. The inner frame of the cover fixing plate 8 .

On the basis of the above-mentioned embodiment, a bracket 5 can be provided below the infrared thermal imager 4, so that the center of the lens of the infrared thermal imager 4 is aligned with the center of the observation hole 2, so that the infrared thermal imager 4 can obtain a larger observation range.

The shape of the observation hole 2 is not limited, and can be set as a round hole, a rectangular hole, or the like. Preferably, the observation hole 2 is a rectangular hole, and the observation hole 2 is larger than the field of view formed by the infrared thermal imager 4 tilted and rotated left and right by 15°.

Preferably, please refer to FIG. 1 , the bracket 5 is U-shaped, the bracket 5 includes a top plate and side plates connected to both sides of the top plate, and the structure is simple and easy to manufacture.

In order to enhance the bearing capacity of the bracket 5, preferably, a reinforcing rib may be provided between the top plate and the side plate.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other.

The real-time temperature monitoring device for a synchronous motor provided by the present invention has been described in detail above. The principles and implementations of the present invention are described herein by using specific examples, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can also be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (9)

1. The utility model provides a synchronous motor real-time temperature monitoring device for the real-time supervision of synchronous motor internal temperature, its characterized in that, synchronous motor real-time temperature monitoring device include thermal infrared imager (4), be used for connect the peripheral hardware with data line (6) of thermal infrared imager (4) and be used for sealing observation flap (11) of observation mouth (12) of synchronous motor (1), be equipped with observation hole (2) on observation flap (11), the camera lens of thermal infrared imager (4) is just right observation hole (2) set up, so that pass through observation hole (2) are received the inside infrared radiation of synchronous motor (1), and will infrared radiation turns into the infrared thermograph by data line (6) transmit to the peripheral hardware.

2. The synchronous motor real-time temperature monitoring device according to claim 1, wherein a dust cover (7) for preventing dust from entering the motor is arranged in the observation hole (2), the dust cover (7) is sleeved outside the thermal infrared imager (4), and one end of the dust cover (7) is connected with the inner surface of the observation opening cover (11).

3. The synchronous motor real-time temperature monitoring device according to claim 2, wherein a dust cover fixing plate (8) is arranged on the inner surface of the observation opening cover (11), the dust cover fixing plate (8) is connected with the inner surface of the observation opening cover (11) through bolts, and one end of the dust cover (7) is connected with the dust cover fixing plate (8).

4. The synchronous motor real-time temperature monitoring device according to claim 1, characterized in that a bracket (5) is arranged below the thermal infrared imager (4) so that the lens center of the thermal infrared imager (4) is aligned with the center of the observation hole (2).

5. The synchronous motor real-time temperature monitoring device according to claim 4, wherein the observation hole (2) is a rectangular hole, and the observation hole (2) is larger than a view field formed by pitching and left-right rotating 15 degrees of the thermal infrared imager (4).

6. The real-time temperature monitoring device for the synchronous motor according to claim 4, wherein the bracket (5) is U-shaped, and the bracket (5) comprises a top plate and side plates connected to two sides of the top plate.

7. The real-time temperature monitoring device for the synchronous motor according to claim 6, wherein a reinforcing rib is arranged between the top plate and the side plate.

8. The synchronous motor real-time temperature monitoring device according to any one of claims 1-7, wherein the number of the thermal infrared imagers (4) is two, and the two thermal infrared imagers (4) are arranged diagonally.

9. The synchronous motor real-time temperature monitoring device according to any one of claims 1-7, wherein the number of the thermal infrared imagers (4) is four, and the thermal infrared imagers (4) are in one-to-one correspondence with the observation ports covers (11).

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