CN213521577U

CN213521577U - Dust removal motor overheat monitoring device

Info

Publication number: CN213521577U
Application number: CN202022328947.9U
Authority: CN
Inventors: 王松伟; 李洋
Original assignee: Hebei Rongxin Iron And Steel Co ltd
Current assignee: Hebei Rongxin Iron And Steel Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-06-22
Anticipated expiration: 2030-10-19

Abstract

The utility model discloses a dust removal motor overheat monitoring device, which comprises a dust removal fan body, an air outlet pipeline, an air inlet pipeline, a dust removal motor, a front axle seat, a rear axle seat, a detection part, a control alarm part and a fixed part; the detection part comprises a front shaft temperature sensing module, a rear shaft temperature sensing module and a stator temperature sensing module; the front shaft sleeve of the front shaft seat, the rear shaft sleeve of the rear shaft seat and the stator core of the dust removal motor are respectively and fixedly provided with a fixing component; the front shaft temperature sensing module, the rear shaft temperature sensing module and the stator temperature sensing module are respectively fixed on a front shaft sleeve of the front shaft seat, a rear shaft sleeve of the rear shaft seat and a stator iron core of the dust removal motor through fixing components; and the signal output ends of the front shaft temperature sensing module, the rear shaft temperature sensing module and the stator temperature sensing module are respectively connected with the control alarm part. The utility model has the characteristics of it is high to detect the precision, and monitoring effect is good, workman low in labor strength, and the dust removal motor damages the possibility low grade.

Description

Dust removal motor overheat monitoring device

Technical Field

The utility model relates to a temperature control device for preventing motor overload, especially a dust removal motor overheat monitoring device.

Background

The dust removal fan is a key device of a converter primary dust removal system. The flue gas generated in the smelting process of the converter is drawn by a plurality of dust removal fans, passes through a vaporization flue and dust removal equipment, and then is recycled or diffused. The dedusting motor works in a mode that the motor shaft is supported by the front shaft seat and the rear shaft seat because the motor shaft is larger. At this moment, if the motor bearings of the front shaft seat and the rear shaft seat enter particles, lubricating oil is too little, and the bearings are worn and torn, the motor bearings generate heat and then are damaged. In addition, the inside of the dust removal fan can also generate a clamping stagnation phenomenon, so that the current passing through the dust removal motor in a short time is too large, the stator generates heat, and a stator core is burnt out. The dust removal motor is easy to generate the faults when in work, and in order to reduce the replacement rate of the dust removal motor and avoid the influence of the faults of the dust removal motor from being expanded, the faults are timely discovered and solved when the local temperature rise of the dust removal motor is overhigh. At present, the temperature of the motor is detected only by detecting the overall heating temperature outside the motor, the temperature of a stator core and a bearing of the motor is not detected, and if the temperature of partial areas inside the motor is too high, an operator can hardly find the temperature.

In addition, because a gap exists in a contact space between the temperature sensor module and a measurement part inside the motor, the temperature raised by the motor shaft cannot be timely transmitted to the temperature sensor module, the heat conduction efficiency is affected, the measurement of the temperature sensor module is inaccurate, an operator cannot timely find the motor fault, and the optimal time for fault treatment is missed. In case the dust removal motor breaks down like this, will directly lead to dust exhausting fan stall, and then cause the stall of whole production process.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a detect real-time, accurate dust removal motor overheat monitoring device.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is:

a dust removal motor overheating monitoring device comprises a dust removal fan body, an air outlet pipeline, an air inlet pipeline, a dust removal motor, a front shaft seat, a rear shaft seat, a detection part, a control alarm part and a fixing part; the dust removal fan body is respectively communicated with the air outlet pipeline and the air inlet pipeline; a motor shaft of the dust removal motor passes through the rear shaft seat, the dust removal fan body and the front shaft seat; the detection part comprises a front shaft temperature sensing module, a rear shaft temperature sensing module and a stator temperature sensing module; the front shaft sleeve of the front shaft seat, the rear shaft sleeve of the rear shaft seat and the stator core of the dust removal motor are respectively and fixedly provided with a fixing component; the fixing part comprises a left vertical plate, a right vertical plate and an upper cover plate; the upper cover plate is clamped with any one of the left vertical plate and the right vertical plate and is rotatably connected with the other vertical plate; the front shaft temperature sensing module, the rear shaft temperature sensing module and the stator temperature sensing module are respectively positioned in each fixed part and are respectively pressed on a front shaft sleeve of the front shaft seat, a rear shaft sleeve of the rear shaft seat and a stator iron core of the dust removal motor by an upper cover plate; and the signal output ends of the front shaft temperature sensing module, the rear shaft temperature sensing module and the stator temperature sensing module are respectively connected with the control alarm part.

The dust removal motor overheating monitoring device also comprises a heat-conducting silica gel sheet; the heat-conducting silica gel sheets are arranged between the front shaft temperature sensing module and the front shaft sleeve, between the rear shaft temperature sensing module and the rear shaft sleeve and between a stator core of the dust removal motor and a motor shell of the dust removal motor respectively.

In the dust removal motor overheating monitoring device, the fixing part further comprises a rubber cushion block; the rubber cushion block is fixed on the inner side of the upper cover plate.

In the dust removal motor overheating monitoring device, the front axle temperature sensing module comprises a front axle CPU, a front axle temperature sensor and a front axle wireless transmitter; the front axle temperature sensor is connected with a P1.0 interface of a front axle CPU; and a P2.0 interface of the front axle CPU is connected with the front axle wireless transmitter.

In the dust removal motor overheating monitoring device, the rear axle temperature sensing module comprises a rear axle CPU, a rear axle temperature sensor and a rear axle wireless transmitter; the rear axle temperature sensor is connected with a P1.0 interface of a rear axle CPU; and the P2.0 interface of the rear axle CPU is connected with the rear axle wireless transmitter.

In the dust removal motor overheating monitoring device, the stator temperature sensing module comprises a stator CPU, a stator temperature sensor and a stator wireless transmitter; the stator temperature sensor is connected with a P1.0 interface of the stator CPU; and the P2.0 interface of the stator CPU is connected with the stator wireless transmitter.

In the dust removal motor overheating monitoring device, the control alarm part comprises a main CPU, a front shaft wireless receiver, a rear shaft wireless receiver, a stator wireless receiver, a first triode, a first relay normally open control contact, a loudspeaker and a display screen; the P1.0 interface of the CPU is connected with the front axle wireless receiver; the P1.1 interface of the CPU is connected with the rear axle wireless receiver; p1.2 of the CPU is connected with a stator wireless receiver; the P1.2 interface of the CPU is connected with the base electrode of a first triode, the collector electrode of the first triode is connected with a power supply after passing through a first relay, and the emitter electrode of the first triode is grounded; one end of the normally open control contact of the first relay is connected with a power supply, and the other end of the normally open control contact of the first relay is grounded after passing through the horn.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the utility model discloses a front axle temperature sensing module, rear axle temperature sensing module and stator temperature sensing module detect motor front axle, motor rear axle, motor inside respectively, can effectively strengthen the temperature monitoring to each position of motor, just can detect unusually at its temperature variation initial stage to reduced operator's nurse, avoided dust removal motor to damage effectively. The utility model discloses still adopt fixed part to fix front axle temperature sensing module, rear axle temperature sensing module and stator temperature sensing module for temperature sensor can not take place to rock, has guaranteed the measuring accuracy. The utility model has the characteristics of it is high to detect the precision, and detection effect is good etc, has avoided the possibility that the dust removal motor damaged effectively, has reduced workman's maintenance intensity.

Furthermore, the utility model discloses set up rubber cushion in the inboard of upper cover plate, the elastic deformation who utilizes rubber cushion makes the upper cover plate press front axle temperature sensing module, rear axle temperature sensing module and stator temperature sensing module more firm to further avoid rocking of temperature sensor, guaranteed the measuring accuracy more effectively.

Furthermore, front axle temperature sensing module, rear axle temperature sensing module, stator temperature sensing module all adopt heat conduction silica gel sheet to fill the gap between motor position of generating heat and the temperature sensor module when the installation, have found the hot aisle between motor and the temperature sensor module, have effectively improved heat conduction efficiency, have reduced the heat and have scattered and disappear, have improved the detection precision of temperature sensor module for the temperature sensor module can in time detect temperature variation, and then avoid dust exhausting fan to damage more effectively.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view in full section of the front axle seat;

FIG. 3 is an enlarged schematic view of part A of FIG. 2;

FIG. 4 is a schematic half-section of the motor;

FIG. 5 is an electrical schematic of the front axle portion of the present invention;

fig. 6 is an electrical schematic of the rear axle portion of the present invention;

fig. 7 is an electrical schematic of a stator core portion of the present invention;

fig. 8 is a main electrical schematic diagram of the present invention.

The reference numerals in the figures denote: 1. an air outlet pipeline; 2. a dust removal motor; 3. a rear axle seat; 4. a dust removal fan body; 5. a front axle seat; 6. an air inlet pipeline; 7. a front shaft sleeve; 8. a heat-conducting silica gel sheet; 9. a front axle temperature sensor; 10. a left vertical plate; 11. an upper cover plate; 12. a right vertical plate; 13. a rubber cushion block; 14. a motor shaft; 15. a motor housing; 16. a stator temperature sensor; 17. a stator core; 18. a front axle CPU; 19. a rear axle CPU; 20. a stator CPU; 21. a main CPU; 22. a rear axle temperature sensor; 231. a front axle wireless transmitter; 232. a front axle wireless receiver; 241. a rear axle wireless transmitter; 242. a rear axle wireless receiver; 251. a stator wireless transmitter; 252. a stator wireless receiver; 26. a display screen; 27. a front axle temperature sensing module; 28. a stator temperature sensing module; VT1, a first triode; j1, a first relay; j1-1, a first relay normally open control contact; LB and horn.

Detailed Description

Referring to fig. 1, 2, 3, 4, 5, 6, 7 and 8, the utility model discloses a dust exhausting fan organism 4, air-out pipeline 1, intake stack 6, dust removal motor 2, front axle seat 5, rear axle seat 3, detection part, control alarm part and fixed part. The dust removal fan body is respectively communicated with the air outlet pipeline 1 and the air inlet pipeline 6; and a motor shaft 14 of the dust removal motor 2 sequentially passes through the rear shaft seat 3, the dust removal fan body and the front shaft seat 5. The detection part comprises a front shaft temperature sensing module 27, a rear shaft temperature sensing module and a stator temperature sensing module 28. The front shaft sleeve 7 of the front shaft seat 5, the rear shaft sleeve of the rear shaft seat 3 and the stator core 17 of the dust removal motor 2 are respectively and fixedly provided with a fixing component; the front shaft temperature sensing module 27, the rear shaft temperature sensing module and the stator temperature sensing module 28 are respectively fixed on the front shaft sleeve 7 of the front shaft seat 5, the rear shaft sleeve of the rear shaft seat 3 and the stator iron core 17 of the dust removal motor 2 through fixing components; the signal output ends of the front shaft temperature sensing module 27, the rear shaft temperature sensing module and the stator temperature sensing module 28 are respectively connected with the control alarm part. By adopting the structure, the front shaft temperature sensing module 27, the rear shaft temperature sensing module 14 and the stator temperature sensing module 28 can respectively detect the temperatures of the front shaft, the rear shaft and the stator core 17 when the dust removing fan 2 works, and the temperature sensor module is adopted to replace manpower, so that the temperature change can be detected at the initial moment of abnormal temperature, and the temperature change signal is transmitted to the control alarm part, so as to alarm in time and perform corresponding operation.

Referring to fig. 2, 3 and 4, an embodiment of the present invention is shown. The fixing parts comprise a left vertical plate 10, a right vertical plate 12, an upper cover plate 11 and a rubber cushion block 13. The left vertical plate 10 and the right vertical plate 12 are correspondingly and fixedly arranged on the front shaft sleeve 7, the rear shaft seat 3 and the stator core 17. One end of the upper cover plate 11 is in shaft rotating connection with the right vertical plate 12 or the left vertical plate 10, and the other end of the upper cover plate is provided with a buckle; a convex block is arranged on the outer side of the left vertical plate 10 or the right vertical plate 12, and a clamping groove is formed in the lower part of the convex block; the buckle is in clamping fit with the clamping groove. The rubber pad 13 is fixed on the inner side of the upper cover plate 11. By adopting the structure, the front shaft temperature sensing module 27, the rear shaft temperature sensing module 14 and the stator temperature sensing module 28 are respectively arranged between the left vertical plate 10 and the right vertical plate 12, and the upper cover plate 11 is rotated to clamp the buckle and the clamping groove together; the front shaft temperature sensing module 27, the rear shaft temperature sensing module 14 and the stator temperature sensing module 28 are clamped and fixed on the front shaft sleeve 7, the rear shaft seat 3 and the stator iron core 17 by utilizing the elastic deformation of the rubber cushion block 13; therefore, the temperature sensor is prevented from shaking, and the measuring accuracy is ensured.

Referring to fig. 2, 3 and 4, the present invention further includes a heat conductive silicone sheet 8; the heat-conducting silica gel sheets 8 are respectively arranged between the front shaft temperature sensing module 27 and the front shaft sleeve 7, between the rear shaft temperature sensing module and the rear shaft sleeve, and between the stator core 17 of the dust removal motor 2 and the motor shell of the dust removal motor 2. The heat-conducting silica gel sheet 8 is adopted, so that the influence of a gap between the front shaft sleeve 7 and the front shaft temperature sensing module 27 on the measurement of the temperature sensor module can be avoided, and the measurement precision of the temperature sensor module is effectively improved.

Referring to fig. 5, 6, 7 and 8, the front axle temperature sensing module 27 of the present invention includes a front axle CPU18, a front axle temperature sensor 9 and a front axle wireless transmitter 231; the front axle temperature sensor 9 is connected with a P1.0 interface of a front axle CPU 18; the P2.0 interface of the front axle CPU18 is connected with the front axle wireless transmitter 231; with the above-described structure, the front axle temperature sensor 9 detects temperature information and transmits it to the front axle CPU18, and the front axle CPU18 transmits the information via the front axle wireless transmitter 231. The rear axle temperature sensing module comprises a rear axle CPU19, a rear axle temperature sensor 22 and a rear axle wireless transmitter 241; the rear axle temperature sensor 22 is connected with a P1.0 interface of a rear axle CPU 19; the P2.0 interface of the rear axle CPU19 is connected with the rear axle wireless transmitter 241; with the above configuration, the rear axle temperature sensor 22 detects temperature information and transmits it to the rear axle CPU19, and the rear axle CPU19 transmits the information via the rear axle wireless transmitter 241. The stator temperature sensing module 28 comprises a stator CPU20, a stator temperature sensor 16 and a stator wireless transmitter 251; the stator temperature sensor 16 is connected with a P1.0 interface of a stator CPU 20; the P2.0 interface of the stator CPU20 is connected with a stator wireless transmitter 251; with the above-described structure, the stator temperature sensor 16 detects temperature information and transmits it to the stator CPU20, and the stator CPU20 transmits the information via the stator wireless transmitter 251. The front shaft, the rear shaft and the stator core 17 are measured in the mode, so that line connection can be reduced, the influence of the line connection on normal operation of a motor is avoided, and the influence of a line on signal output to a control alarm part is effectively avoided.

Referring to fig. 5, fig. 6, fig. 7 and fig. 8, the control alarm portion of the present invention includes a main CPU21, a front axle wireless receiver 232, a rear axle wireless receiver 242, a stator wireless receiver 252, a first triode VT1, a first relay J1, a first relay normally open control contact J1-1, a horn LB and a display screen 26. The P1.0 interface of the CPU is connected with a front axle wireless receiver 232; the P1.1 interface of the CPU is connected with a rear axle wireless receiver 242; p1.2 of the CPU is connected with a stator wireless receiver 252; the P1.2 interface of the CPU is connected with the base electrode of a first triode VT1, the collector electrode of the first triode VT1 is connected with a power supply after passing through a first relay J1, and the emitter electrode is grounded; one end of the first relay normally open control contact J1-1 is connected with a power supply, and the other end is grounded after passing through the horn LB. By adopting the structure, the received signals are transmitted to the CPU15 by the current shaft wireless receiver 232, the rear shaft wireless receiver 242 and the stator wireless receiver 252 respectively, the CPU15 compares the received temperature signals with the stored information, if the temperature at any position exceeds a set value, the CPU15 controls the conduction of the first triode VT1, the first relay J1 is electrified, the normally open control contact J1-1 of the first relay is closed, and the horn LB is electrified to sound. The CPU15 also synchronizes the received temperature information to the display screen 26 for display.

The utility model discloses a working process does: the flue gas enters the dedusting fan body 4 through the air inlet pipeline 6, then goes out from the air outlet pipeline 1 and enters the next working unit. The dedusting motor 2 controls the motor shaft 10 to rotate, and further controls the dedusting fan body 4 to work. The front shaft temperature sensor 9, the rear shaft temperature sensor 22 and the stator temperature sensor 15 can detect the temperature of the dust removal fan 2 at the front shaft, the rear shaft and the stator core 17 when the dust removal fan works respectively, the heat conduction silica gel sheet 8 can prevent the gap between the shaft sleeve 7 and the front shaft temperature sensing module 27 from influencing the measurement of the temperature sensor module, and the measurement precision of the temperature sensor module is effectively improved. After any one of the front axle temperature sensing module 27, the rear axle temperature sensing module 14 and the stator temperature sensing module 28 detects a temperature signal, the signal is transmitted to the CPU15 in a wireless mode, the CPU15 compares the received signal with the stored information, if the temperature exceeds a set value, the CPU15 controls the conduction of the first triode VT1, the first relay J1 is powered on, the normally-open control contact J1-1 of the first relay is closed, and the horn LB is powered on to sound. The CPU15 synchronizes the transmission of the received temperature information to the display screen 26 for display.

Claims

1. The utility model provides a dust removal motor overheat monitoring device which characterized in that: the dust removal fan comprises a dust removal fan body (4), an air outlet pipeline (1), an air inlet pipeline (6), a dust removal motor (2), a front shaft seat (5), a rear shaft seat (3), a detection part, a control alarm part and a fixing part; the dedusting fan body (4) is respectively communicated with the air outlet pipeline (1) and the air inlet pipeline (6); a motor shaft (14) of the dust removal motor (2) penetrates through the rear shaft seat (3), the dust removal fan body (4) and the front shaft seat (5); the detection part comprises a front shaft temperature sensing module (27), a rear shaft temperature sensing module and a stator temperature sensing module (28); the front shaft sleeve (7) of the front shaft seat (5), the rear shaft sleeve of the rear shaft seat (3) and the stator core (17) of the dust removal motor (2) are respectively and fixedly provided with a fixing component; the fixing part comprises a left vertical plate (10), a right vertical plate (12) and an upper cover plate (11); the upper cover plate (11) is clamped with any one of the left vertical plate (10) and the right vertical plate (12) and is rotatably connected with the other vertical plate; the front shaft temperature sensing module (27), the rear shaft temperature sensing module and the stator temperature sensing module (28) are respectively positioned in each fixed part and are respectively pressed on a front shaft sleeve (7) of the front shaft seat (5), a rear shaft sleeve of the rear shaft seat (3) and a stator iron core (17) of the dust removal motor (2) by an upper cover plate (11); and the signal output ends of the front shaft temperature sensing module (27), the rear shaft temperature sensing module and the stator temperature sensing module (28) are respectively connected with the control alarm part.

2. The dust removal motor overheat monitoring device according to claim 1, wherein: the heat-conducting silica gel sheet (8) is also included; the heat-conducting silica gel sheets (8) are arranged between the front shaft temperature sensing module (27) and the front shaft sleeve (7), between the rear shaft temperature sensing module and the rear shaft sleeve, and between the stator core (17) of the dust-removing motor (2) and the motor shell (15) of the dust-removing motor (2).

3. The dust removal motor overheat monitoring device according to claim 1, wherein: the fixing part also comprises a rubber cushion block (13); the rubber cushion block (13) is fixed on the inner side of the upper cover plate (11).

4. The dust removal motor overheat monitoring apparatus according to any one of claims 1 to 3, wherein: the front axle temperature sensing module (27) comprises a front axle CPU (18), a front axle temperature sensor (9) and a front axle wireless transmitter (231); the front axle temperature sensor (9) is connected with a P1.0 interface of a front axle CPU (18); and the P2.0 interface of the front axle CPU (18) is connected with a front axle wireless transmitter (231).

5. The dust removal motor overheat monitoring device according to claim 4, wherein: the rear axle temperature sensing module comprises a rear axle CPU (19), a rear axle temperature sensor (22) and a rear axle wireless transmitter (241); the rear axle temperature sensor (22) is connected with a P1.0 interface of a rear axle CPU (19); and a P2.0 interface of the rear axle CPU (19) is connected with a rear axle wireless transmitter (241).

6. The dust removal motor overheat monitoring device according to claim 5, wherein: the stator temperature sensing module (28) comprises a stator CPU (20), a stator temperature sensor (16) and a stator wireless transmitter (251); the stator temperature sensor (16) is connected with a P1.0 interface of a stator CPU (20); the P2.0 interface of the stator CPU (20) is connected with a stator wireless transmitter (251).

7. The dust removal motor overheat monitoring device according to claim 6, wherein: the control alarm part comprises a main CPU (21), a front axle wireless receiver (232), a rear axle wireless receiver (242), a stator wireless receiver (252), a first triode (VT1), a first relay (J1), a first relay normally open control contact (J1-1), a horn (LB) and a display screen (26); the P1.0 interface of the CPU is connected with a front axle wireless receiver (232); the P1.1 interface of the CPU is connected with a rear axle wireless receiver (242); p1.2 of the CPU is connected with a stator wireless receiver (252); the P1.2 interface of the CPU is connected with the base electrode of a first triode (VT1), the collector electrode of the first triode (VT1) is connected with a power supply after passing through a first relay (J1), and the emitter electrode is grounded; one end of the first relay normally open control contact (J1-1) is connected with a power supply, and the other end is grounded after passing through a horn (LB).