CN202255266U - Rotation and bearing wear detection and display device - Google Patents

Rotation and bearing wear detection and display device Download PDF

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Publication number
CN202255266U
CN202255266U CN2011203354743U CN201120335474U CN202255266U CN 202255266 U CN202255266 U CN 202255266U CN 2011203354743 U CN2011203354743 U CN 2011203354743U CN 201120335474 U CN201120335474 U CN 201120335474U CN 202255266 U CN202255266 U CN 202255266U
Authority
CN
China
Prior art keywords
display
analysis
detection
coils
magnetic test
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011203354743U
Other languages
Chinese (zh)
Inventor
高岭
牟福亮
李阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YANTAI SUNSHINE PUMP CO Ltd
Original Assignee
YANTAI SUNSHINE PUMP CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by YANTAI SUNSHINE PUMP CO Ltd filed Critical YANTAI SUNSHINE PUMP CO Ltd
Priority to CN2011203354743U priority Critical patent/CN202255266U/en
Application granted granted Critical
Publication of CN202255266U publication Critical patent/CN202255266U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a rotary direction and bearing wear detection and display device which comprises a detection part, an analysis part and a display part, wherein the detection part comprises three detection coils arranged on a stator core inside a canned motor; the detection coils are connected with the analysis part; the analysis part is connected with the display part; the three detection coils are respectively staggered by 120 degrees; the analysis part is provided with a remote interface; the display part comprises four display lamps; and the four display lamps are LEDs (light-emitting diodes). By adopting the three magnetic test coils staggered by 120 degrees, the detection device not only can be used in a horizontal canned motor pump, but also can be used in a vertical canned motor pump. As for the rotation detection, a 'Forward' and 'Reverse' display device is directly mounted, so that the user can judge a bearing clearance failure and a motor rotary direction failure in a more directly and easier way, thereby facilitating the maintenance operation and saving time, manpower and material resources.

Description

A kind of turning to and bearing wear detection and display device
Technical field
The utility model belongs to mechanical field, relates in particular to a kind of turning to and bearing wear detection and display device.
Background technology
The bearing wear pick-up unit of the shielded electric pump of using in the market mainly contains following two kinds of structures; The one, the signal of bearing wear situation shows through the gauge outfit of a magneto-electric; Adopted two magnetic test coils in the device, at a distance of 180 °, the bearing wear that can only be applied to horizontal shielded electric pump detects; To shield electric machine turn to can not be correct mensuration, can only be shown as the bearing wear fault; The 2nd, mechanical hook-up, the high pressure nitrogen of in an airtight shell, annotating is equipped with a tensimeter; The pressure that shows high pressure nitrogen, in case small gap of device and axle design is bearing wear; Axle just galls closed shell, and high pressure nitrogen leaks, and the tensimeter of installing on the device does not just show pressure; Thereby draw the information that needs to change bearing, this device is made complicated, and installation accuracy requires very high; This has just caused failure rate than higher, and the eccentric error of installation also might cause wrong report, and can not detect turning to of shield electric machine.
Summary of the invention
The utility model provides a kind of and turned to and bearing wear detection and display device, solved the pick-up unit in the background technology and can not detect and turn to and the shortcoming of complex equipments.
The technical scheme of the utility model is achieved in that a kind of turning to and bearing wear detection and display device; Comprise test section, analysis part and display part, the test section comprises the magnetic test coil that is placed on the inner stator core of shield electric machine, and magnetic test coil links to each other with analysis part; Analysis part links to each other with the display part; Be equipped with three magnetic test coils on the stator core, three magnetic test coils stagger 120 ° respectively;
Analysis part is equipped with remote interface;
The display part comprises four display lamps; Four display lamps are LED.
The beneficial effect of the utility model is: the utility model has adopted three magnetic test coils, and at a distance of 120 °, this pick-up unit not only can be applied to horizontal shielded electric pump; Also can be applicable to vertical canned motor pump; For the detection that turns to, display device of " just changeing " and " counter-rotating " directly has been installed, more direct, be easier to judge bearing clearance fault and motor steering fault; The purpose that helps maintenance operation is saved time, human and material resources.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Part explanation: 1, magnetic test coil, 2, stator core, 3, the test section, 4, analysis part, 5, remote interface, 6, display lamp one, 7, display lamp two, 8, display lamp three, 9, display lamp four, 10, display part.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described: a kind of turning to and bearing wear detection and display device; Comprise test section 3, analysis part 4 and display part 10; Test section 3 comprises three magnetic test coils 1 that are placed on the inner stator core 2 of shield electric machine; Three magnetic test coils 1 stagger 120 ° respectively, and magnetic test coil 1 links to each other with analysis part 4, and analysis part 4 is equipped with remote interface 5; Analysis part 4 links to each other with display part 10, and display part 10 comprises four LED display lamps 1, display lamp 27, display lamp 38, display lamp 49.
The detection that turns to: three magnetic test coils produce alternating voltage respectively; 120 ° of electrical angles of mutual deviation; Form the low-voltage three-phase ac power supply, the electric current that the three-phase alternating current of three magnetic test coil generations can provide is minimum, only works the signal effect that provides; Three magnetic test coils are transferred to signal the analysis circuit of analysis part through lead; Judge the sense of rotation of shielded motor through the phase sequence of analyzing this three-phase alternating current, and produce and output signal to the display part that the display part just demonstrates the sense of rotation of shielded motor.
The detection of bearing wear: when bearing newly uses; Because the gap of bearing is qualified; So three magnetic test coils equate that apart from the rotor of shielded motor the voltage value that therefore on three magnetic test coils, produces equates that the signal of the 120 ° of electrical angles of three mutual deviations that equate is transferred to analysis part; The circuit to three of an analysis part signal calculates the back addition, and the algebraic sum after the addition at this moment is 0.After bearing progressively wore and tore, the distance of three magnetic test coils and shielded motor rotor was just unequal, and the signal of the 120 ° of electrical angles of unequal three mutual deviations that produce like this is transferred to analysis part; The circuit to three of an analysis part signal calculates the back addition; At this moment the algebraic sum after the addition is not equal to 0, and its absolute value is greater than 0, and it is many more to wear and tear; The distance of three magnetic test coils and shielded motor rotor just differs big more, and it is big more that the magnitude of voltage that produces on the magnetic test coil just differs.Analysis circuit is obtained a result through analytical calculation, changes into the output signal and is transferred to the display part and shows.
Result's demonstration: the display part has four LED display lamps (light emitting diode); Display lamp 1 is used to show the forward running of shielded motor; Display lamp 27 is used to show the electronic bearing of shielding experience wear; Display lamp 38 is used to show bearing near scrapping, and should change the electronic bearing of shielding immediately, and display lamp 49 is used to show the antiport of shielded motor.1, just transports row, having only display lamp 1 that demonstration is arranged; 2, just transporting row, when bearing experience wear, causing shield electric machine to damage but be unlikely, in the time of can also operate as normal, display lamp 1, display lamp 27 all have demonstration; 3, just transporting row, when bearing experience wear, in the time of will causing shielded motor to break down, display lamp 1, display lamp 27, display lamp 38 all have demonstration, and should the hard stop maintenance change bearing this moment; 4, when new shielded electric pump was debugged, if be operated in the counter-rotating running status, then display lamp 49 had demonstration, and other three are not all had demonstration, and should change the phase sequence that is input to shielded motor this moment.

Claims (3)

1. one kind turns to and bearing wear detection and display device; Comprise test section (3), analysis part (4) and display part (10); Test section (3) comprises the magnetic test coil (1) that is placed on the inner stator core (2) of shield electric machine, and magnetic test coil (1) links to each other with analysis part (4), and analysis part (4) links to each other with display part (10); It is characterized in that being equipped with three magnetic test coils (1) on the stator core (2), three magnetic test coils (1) stagger 120 ° respectively.
2. a kind of turning to and bearing wear detection and display device according to claim 1 is characterized in that analysis part (4) is equipped with remote interface (5).
3. a kind of turning to and bearing wear detection and display device according to claim 1; It is characterized in that display part (10) comprises four display lamps one (6), display lamp two (7), display lamp three (8), display lamp four (9), four display lamps are LED.
CN2011203354743U 2011-09-08 2011-09-08 Rotation and bearing wear detection and display device Expired - Fee Related CN202255266U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203354743U CN202255266U (en) 2011-09-08 2011-09-08 Rotation and bearing wear detection and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203354743U CN202255266U (en) 2011-09-08 2011-09-08 Rotation and bearing wear detection and display device

Publications (1)

Publication Number Publication Date
CN202255266U true CN202255266U (en) 2012-05-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203354743U Expired - Fee Related CN202255266U (en) 2011-09-08 2011-09-08 Rotation and bearing wear detection and display device

Country Status (1)

Country Link
CN (1) CN202255266U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106931870A (en) * 2017-04-07 2017-07-07 中国矿业大学 A kind of the middle pan of scraper conveyor wear detector and method
CN108612658A (en) * 2018-04-22 2018-10-02 大连理工大学 A kind of fault detect prior-warning device for canned motor pump
CN110361194A (en) * 2019-08-07 2019-10-22 东北大学秦皇岛分校 A kind of on-line measuring device of the bush(ing) bearing abrasion loss based on inductance measurement
CN110441059A (en) * 2019-08-07 2019-11-12 东北大学秦皇岛分校 A kind of bush(ing) bearing abrasion loss on-line measuring device
CN110441058A (en) * 2019-08-07 2019-11-12 东北大学秦皇岛分校 A kind of on-line measuring device of the bush(ing) bearing abrasion loss based on pressure detecting

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106931870A (en) * 2017-04-07 2017-07-07 中国矿业大学 A kind of the middle pan of scraper conveyor wear detector and method
CN108612658A (en) * 2018-04-22 2018-10-02 大连理工大学 A kind of fault detect prior-warning device for canned motor pump
CN108612658B (en) * 2018-04-22 2019-10-22 大连理工大学 A kind of fault detection prior-warning device for canned motor pump
CN110361194A (en) * 2019-08-07 2019-10-22 东北大学秦皇岛分校 A kind of on-line measuring device of the bush(ing) bearing abrasion loss based on inductance measurement
CN110441059A (en) * 2019-08-07 2019-11-12 东北大学秦皇岛分校 A kind of bush(ing) bearing abrasion loss on-line measuring device
CN110441058A (en) * 2019-08-07 2019-11-12 东北大学秦皇岛分校 A kind of on-line measuring device of the bush(ing) bearing abrasion loss based on pressure detecting

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120530

Termination date: 20140908