CN214543973U - Explosion-proof vibrating motor with temperature monitoring function - Google Patents
Explosion-proof vibrating motor with temperature monitoring function Download PDFInfo
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- CN214543973U CN214543973U CN202120453297.2U CN202120453297U CN214543973U CN 214543973 U CN214543973 U CN 214543973U CN 202120453297 U CN202120453297 U CN 202120453297U CN 214543973 U CN214543973 U CN 214543973U
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- motor
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- stator
- temperature
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000003063 flame retardant Substances 0.000 claims abstract description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 12
- 229910052697 platinum Inorganic materials 0.000 claims description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 9
- 238000005253 cladding Methods 0.000 abstract 1
- 239000011247 coating layer Substances 0.000 description 7
- 238000007789 sealing Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 238000009529 body temperature measurement Methods 0.000 description 3
- 210000004907 gland Anatomy 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model relates to an explosion-proof vibrating motor with temperature monitoring function belongs to the material and carries equipment field technique. The utility model discloses a stator is installed in motor housing, the rotor is installed on the revolving axle, the revolving axle is supported by the support bearing at both ends, support bearing installs in the casing end cover, adopt the apron to seal in the casing end cover outside, the eccentric block is installed on the revolving axle in the apron outside, temperature element is installed near the position of bearing inner race at the casing end cover, temperature element's connecting wire is drawn forth by the faying face between casing end cover and the motor casing, and introduce in the terminal box through the passageway that sets up on the motor casing, the connecting wire adopts fire-retardant rubber material to carry out the cladding, the thermocouple has been buried underground to the position that is close to the stator internal surface in the motor casing. The utility model discloses can accurately detect the temperature variation condition of explosion-proof vibrating motor's support bearing and rotor, can effectively prevent because the temperature rise is too fast too high and the motor that causes burns out and explodes the incident.
Description
Technical Field
The utility model relates to an explosion-proof vibrating motor with temperature monitoring function belongs to the material and carries equipment field technique.
Background
With the development of modern industry, the application of vibrating equipment such as vibrating screens, vibrating conveyors, vibrating crushers is also becoming more and more widespread. The vibration motor is used as a vibration source of vibration equipment, has a compact structure, is simple and convenient to mount and dismount, and is increasingly applied to the vibration equipment. In addition, with the higher and higher requirements of industries such as mining industry, chemical industry and the like on safety production, the higher and higher requirements on the explosion-proof performance of a power source in some flammable and explosive fields are also provided, so that the vibration motor is used as a power source and is required to have the stricter and stricter explosion-proof performance when being applied in the fields. The vibration motor is characterized in that a coil for generating power and an eccentric block for generating exciting force are assembled together to work, so that resistance heat generated by power consumption of the motor and mechanical heat generated by mechanical friction are superposed together in the working process, the temperature rise of the motor is greatly improved compared with that of a common motor, particularly for some high-power explosion-proof vibration motors, the power consumption heat and the mechanical friction heat are greatly increased due to the increase of the power and the increase of the external dimensions of structural components such as bearings and the like, the requirement on explosion-proof safety performance is improved, the sealing performance among the components is also improved, the frictional heat is more serious, and the final result is that the temperature rise of the large explosion-proof vibration motor is very high in the working process. After the temperature of the explosion-proof vibration motor rises, the coil insulation failure can be caused, meanwhile, the support bearing exceeds the rated working temperature, finally, the coil of the explosion-proof vibration motor is burnt, the bearing is locked, after all the phenomenon occurs, the motor is damaged by light persons, and the safety accident of burning and explosion occurs by heavy persons, so that the casualty accident is caused. In order to prevent the temperature of the explosion-proof vibration motor from being excessively increased in the engineering process, firstly, the temperature of the explosion-proof vibration motor in the working process can be monitored so as to control the temperature of the explosion-proof vibration motor, but at present, no effective detection means exists for the temperature of the explosion-proof vibration motor in the working process, so that the temperature increase of the explosion-proof vibration motor cannot be controlled, and various problems caused by the excessively high temperature increase finally occur.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing such an explosion-proof vibrating motor with temperature monitoring function, it can the effectual current explosion-proof vibrating motor of solution can't rise the problem that detects to the temperature.
The purpose of the utility model is realized like this: an explosion-proof vibration motor with temperature detection function comprises a rotating shaft, supporting bearings, an eccentric block, a motor shell, a stator and a rotor, wherein the stator is arranged in the motor shell, the rotor is arranged on the rotating shaft and corresponds to the position of the stator, the rotating shaft is supported by the supporting bearings at two ends, the supporting bearings are arranged in shell end covers, the shell end covers are fixed at two ends of the motor shell, a cover plate is adopted at the outer side of each shell end cover for sealing, the eccentric block is arranged on the rotating shaft at the outer side of the cover plate, a temperature measuring element is arranged at the position, close to the outer ring of a bearing, of each shell end cover, a connecting wire of the temperature measuring element is led out from a joint surface between the shell end cover and the motor shell and is led into a junction box through a channel arranged on the motor shell, and is coated by flame-retardant rubber material, and a thermocouple is embedded in the position close to the inner surface of the stator in the motor shell.
And a groove is formed in the shell end cover, and the connecting wire is led into a channel arranged on the motor shell from the groove.
And a pressure plate is arranged at the position of the groove.
And a group of thermocouples are respectively embedded in the motor shell at positions close to the stator and corresponding to each phase of the three-phase winding.
The temperature measuring element and the thermocouple adopt a platinum thermocouple.
The rotor is arranged on the rotating shaft and the stator is arranged in the motor shell, the rotor arranged on the rotating shaft is driven to rotate through electromagnetic force after the stator is electrified, the rotating shaft is supported in the supporting bearing, the eccentric blocks are arranged at two ends of the rotating shaft, the rotating shaft can be ensured to drive the eccentric blocks to rotate smoothly, and therefore the required exciting force is generated. Install support bearing in the casing end cover, the casing end cover is connected on motor casing, and the outside adopts the apron to seal, and the main objective is guaranteed to carry out effectual lubrication and sealed to support bearing, guarantees explosion-proof vibrating motor's normal work.
The support bearing rotates at a high speed and bears the action of an eccentric force generated by the eccentric block when in work, so that heat is generated to cause the temperature of the support bearing to rise, the support bearing with the raised temperature transfers the heat to parts which are in contact with the support bearing all around, the support bearing comprises a shell end cover, a temperature measuring element is arranged at the position, close to the outer ring of the support bearing, of the shell end cover, the temperature of the support bearing can be tested and detected more accurately and rapidly, and the support bearing has the advantage of sensitive and accurate temperature measuring reaction. Because the motor is used in the occasion with explosion-proof requirement, the joints of all connecting wires must be sealed, for this reason, the connecting wires of the temperature measuring elements are led out from the joint surface between the shell end cover and the motor shell and are led into the junction box through the channel arranged on the motor shell, the wiring work is completed in the explosion-proof junction box, and the explosion-proof performance of the connecting wires is ensured. The connecting wires are coated by the flame-retardant rubber material, so that the connecting wires can be effectively isolated in a narrow space, short circuit between the connecting wires is prevented, and meanwhile, the connecting wires can be isolated from peripheral parts in a channel leading to the junction box, and the explosion-proof performance is improved.
In the working process of the explosion-proof vibration motor, except for the heating of the supporting bearing, large-flow current flows in the stator and the rotor, so that certain heat is generated due to power consumption to cause the stator to generate heat. The design has the advantage of being capable of carrying out safe and effective detection on the working temperature of the vibration motor.
The groove is formed in the end cover of the shell, and the connecting wire is led into the channel formed in the motor shell from the groove, so that the connecting wire is the simplest structure for leading the connecting wire into the channel formed in the motor shell from the temperature measuring position, and arrangement, installation and disassembly of the temperature measuring element are facilitated. The pressing plate is arranged at the groove position, so that the flame-retardant rubber material coating layer coating the connecting wire can be tightly pressed in the groove, the sealing isolation and positioning functions among all the parts are ensured, and the parts are prevented from being worn in the vibration process of the vibration equipment.
Because every motor all has three wire winding stator, buries a set of thermocouple underground respectively corresponding to the position that is close to the stator of each looks of three-phase winding in the motor casing, the temperature rise state of monitoring motor casing that can be more accurate to the realization is to more accurate temperature detection of explosion-proof vibrating motor.
The platinum thermocouple has a series of advantages of high measurement precision, stable temperature measurement performance, good test linearity, compact volume, outstanding vibration resistance, low price and the like, is suitable for temperature detection of solid surfaces in narrow places, is directly embedded at the positions of a stator winding and a shell end cover close to a support bearing to serve as a temperature measurement element and a thermocouple, and can perfectly adapt to the requirements of an explosion-proof vibrating motor on the temperature measurement performance.
Drawings
The accompanying drawings are a structural diagram of an embodiment of the present invention, wherein fig. 1 is a front sectional view of the embodiment, and fig. 2 is a partial sectional view taken from a position a to a in fig. 1.
Detailed Description
In the drawings of the present embodiment, the numerical values are as follows: 1. a protective cover; 2. an eccentric block; 3. a rotating shaft; 4. a felt ring; 5. A gland; 6. a support bearing; 7. a housing end cap; 8. a temperature measuring element; 9. a connecting wire; 10. a temperature measuring terminal; 11. a power supply wiring terminal; 12. a lead tube; 13. a thermocouple terminal; 14. a top cover; 15. a thermocouple; 16. a junction box; 17. a coating layer; 18. pressing a plate; 19. a seal ring; 20. a key; 21. a retainer ring; 22. a motor housing; 23. a rotor; 24. a stator; 25. and a seal.
In this embodiment, the rotary shaft 3 is supported at both ends by the support bearings 6, the rotor 23 is installed at the middle part of the rotary shaft, the stator 24 is installed in the motor housing 22 corresponding to the rotor, the housing end cover 7 is connected to the motor housing by bolts, the gland 5 is connected to the housing end cover by bolts, and the felt 4 and the packing 19 are installed between the gland, the housing end cover and the rotary shaft, respectively, to seal the grease of the support bearings. The eccentric block 2 is arranged at two ends of the rotating shaft, the circumferential direction is positioned by adopting a key 20, the axial direction is positioned by adopting a retainer ring 21, and the eccentric block is protected by adopting a protective cover 1. The temperature measuring element 8 is a platinum thermocouple and is arranged at a position, close to the outer ring of the support bearing, of the shell end cover, the connecting wire 9 is coated by a coating layer 17, the coating layer is made of flame-retardant rubber materials and used for insulating and isolating the connecting wires and the shell end cover and the motor shell, the connecting wires and the coating layer are led into a channel on the motor shell through a groove formed in the shell end cover and are led into the junction box 16 through the channel, and finally the connecting wire and the coating layer are connected onto the temperature measuring terminal 10. The pressing plate 18 is arranged at the position of a groove formed in the shell end cover, the sealing piece 25 is arranged between the shell end cover and the motor shell joint surface, when the shell end cover is installed, the shell end cover extrudes the sealing piece to enable the sealing piece and the shell end cover to be sealed and closed, meanwhile, the pressing plate is pressed in the groove, the coating layer generates certain deformation, the temperature measuring element and the connecting wire are sealed and isolated from the peripheral space, and the explosion-proof performance is guaranteed. The three-phase power wires of the stator are connected to the power supply wiring terminal 11, the number of the thermocouples 15 is three, the thermocouples are respectively arranged at the positions of the three-phase stator to test the temperature of the three-phase stator, the thermocouples also adopt platinum thermocouples, and the wires of the thermocouples are connected to the thermocouple terminal 13. The lead wires and the connecting wires connected to the thermocouple terminal, the power wire connecting terminal and the temperature measuring terminal are transited through the terminals and then led out from a lead tube 12 on the junction box, an explosion-proof isolation element is arranged in the lead tube, and meanwhile, the junction box is isolated from the outside in a sealed mode by adopting a top cover 14 on the upper portion of the junction box, so that the explosion-proof performance of the junction box is guaranteed. All platinum thermocouples are finally connected to relevant measuring and display instruments, alarm systems, etc.
When the explosion-proof vibration motor works, the stator is electrified to drive the rotor and the rotating shaft to rotate, and the rotating shaft drives the eccentric block to rotate at a high speed to generate effective exciting force so that the vibration equipment generates required vibration. In the process, the temperature of the supporting bearing is increased due to the friction action of the supporting bearing roller, the inner ring, the outer ring, the sealing ring, the felt ring and the rotating shaft, meanwhile, the temperature of the stator and the motor shell is also increased due to the fact that current passes through the stator and the rotor, resistance heat is generated, temperature changes of the positions can be timely and sensitively measured by the temperature measuring elements and the thermocouples which are arranged at the positions close to the end cover of the shell and the stator, the temperature changes are displayed through a display instrument, whether the temperature rise is too fast or not or whether the temperature exceeds a limit or not can be judged according to the test result, if the temperature changes, the electric control system stops the machine, and meanwhile, related alarm systems are used for alarming to remind related personnel of carrying out maintenance, so that the damage of equipment and the occurrence of casualty accidents due to the occurrence of combustion and explosion of the personnel are prevented.
Claims (5)
1. An explosion-proof vibrating motor with temperature monitoring function, contains the pivot, supports bearing, eccentric block, motor casing, stator and rotor, the stator is installed in the motor casing, the rotor is installed on the pivot, and with the position of stator is corresponding, its characterized in that: the motor comprises a shell, a rotating shaft, eccentric blocks, a temperature measuring element, a connecting wire and a thermocouple, wherein the rotating shaft is supported by supporting bearings at two ends, the supporting bearings are arranged in shell end covers, the shell end covers are fixed at two ends of a motor shell, a cover plate is adopted to seal the outer sides of the shell end covers, the eccentric blocks are arranged on the rotating shaft at the outer sides of the cover plates, the position, close to the outer ring of a bearing, of the shell end covers is provided with the temperature measuring element, the connecting wire of the temperature measuring element is led out from a joint surface between the shell end covers and the motor shell and is led into a junction box through a channel arranged on the motor shell, the connecting wire is coated by a flame-retardant rubber material, and the thermocouple is buried in the position, close to the inner surface of a stator, in the motor shell.
2. The explosion-proof vibration motor with the temperature monitoring function according to claim 1, characterized in that: and a groove is formed in the shell end cover, and the connecting wire is led into a channel arranged on the motor shell from the groove.
3. The explosion-proof vibration motor with the temperature monitoring function according to claim 2, characterized in that: and a pressure plate is arranged at the position of the groove.
4. The explosion-proof vibration motor with the temperature monitoring function according to claim 1, characterized in that: and a group of thermocouples are respectively embedded in the motor shell at positions close to the stator and corresponding to each phase of the three-phase winding.
5. The explosion-proof vibration motor with the temperature monitoring function according to claim 4, characterized in that: the temperature measuring element and the thermocouple adopt a platinum thermocouple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120453297.2U CN214543973U (en) | 2021-03-03 | 2021-03-03 | Explosion-proof vibrating motor with temperature monitoring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120453297.2U CN214543973U (en) | 2021-03-03 | 2021-03-03 | Explosion-proof vibrating motor with temperature monitoring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214543973U true CN214543973U (en) | 2021-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120453297.2U Expired - Fee Related CN214543973U (en) | 2021-03-03 | 2021-03-03 | Explosion-proof vibrating motor with temperature monitoring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214543973U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115815643A (en) * | 2022-11-29 | 2023-03-21 | 无锡阳光精机股份有限公司 | High-speed efficient multi-linkage main shaft equipment for intelligent manufacturing of high-end equipment |
-
2021
- 2021-03-03 CN CN202120453297.2U patent/CN214543973U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115815643A (en) * | 2022-11-29 | 2023-03-21 | 无锡阳光精机股份有限公司 | High-speed efficient multi-linkage main shaft equipment for intelligent manufacturing of high-end equipment |
| CN115815643B (en) * | 2022-11-29 | 2023-11-10 | 无锡阳光精机股份有限公司 | High-speed high-efficiency multi-linkage main shaft equipment for intelligent manufacturing of high-end equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211029 |
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| CF01 | Termination of patent right due to non-payment of annual fee |