CN102338667A - Device and method for detecting temperature of motor bearing - Google Patents
Device and method for detecting temperature of motor bearing Download PDFInfo
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- CN102338667A CN102338667A CN2010102305970A CN201010230597A CN102338667A CN 102338667 A CN102338667 A CN 102338667A CN 2010102305970 A CN2010102305970 A CN 2010102305970A CN 201010230597 A CN201010230597 A CN 201010230597A CN 102338667 A CN102338667 A CN 102338667A
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- temperature
- motor bearings
- bilayer sleeve
- outer tube
- detection motor
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Abstract
The invention discloses a device and a method for detecting a temperature of a motor bearing. The device for detecting the temperature of the motor bearing comprises a double-layer sleeve and a temperature sensor. The double-layer sleeve is formed in a mode that an inner tube is sleeved in an outer tube; the inner tube is provided with a closed bottom; the outer wall of the inner tube is provided with a pushing mechanism; the inner wall of the outer tube is provided with a blocking mechanism; the pushing mechanism and the blocking mechanism are oppositely arranged on the axial direction of the double-layer sleeve; the position of the blocking mechanism relative to the pushing mechanism is closer to the bottom of the double-layer sleeve; a spring is arranged between the pushing mechanism and the blocking mechanism; the inner tube can move along the axial direction of the outer tube under the action of the spring; the temperature sensor consists of a contact probe and a soft lead; the contact probe is fixed at the bottom of the inner tube; and the soft lead extends out of the top of the inner tube.
Description
Technical field
The present invention relates to the temperature detection technology, relate in particular to the apparatus and method that detect the motor bearings temperature.
Background technology
Along with the raising day by day of railway system's modernization and automatization level, the prolongation of the speed-raising of rolling stock, heavy duty and circuit all plays important facilitation to the fast development of Chinese national economy.In rolling stock, traction electric machine is one of most important parts, is undertaking the vital task of drawing the permutation rolling stock, so the work safety of traction electric machine is concerning the work safety of permutation rolling stock.
The most common failure of traction electric machine is the undesired heating of machine shaft.If this fault, gently hot box then causes electrical fault, influences the normal operation of locomotive; Heavy then seize causes car crash, not only has a strong impact on safety of railway transportation, also can cause enormous economic loss to country.Therefore, the machine shaft of traction electric machine in the rolling stock is carried out timely, accurate and reliable temperature detection and become the important process in the rolling stock operational process.
Utilize the temperature of bearing temperature sensor machine shaft in the prior art.The bearing temperature sensor that often uses at present is a kind of temperature sensor of soft extension line, and the temperature sensor of this soft extension line is easy to be damaged under the abominable operating condition of rolling stock; And the fixedly easy shaking of the temperature sensor of soft extension line is stressed, thereby can't guarantee the temperature of accurate, real-time detection machine shaft, and reliability is lower; Simultaneously; If the temperature sensor fails of soft extension line and need be when motor is removed with it; Because the limitation of its structure; If do not have and change the operating space and just must motor be pulled down and the motor that disintegrates carries out the replacing of temperature sensor again from the car body of rolling stock, will certainly influence the normal operation of vehicle like this, and increase maintenance of products cost.
Summary of the invention
The present invention provides a kind of apparatus and method that detect the motor bearings temperature, in order to solve defective of the prior art, and when having realized accurate detection motor bearings temperature, function that can also anti-vibration.
The present invention provides a kind of device that detects the motor bearings temperature, comprising: bilayer sleeve and temperature sensor;
Said bilayer sleeve is by interior pipe and outer tube is sheathed forms, and interior pipe has the bottom of sealing; Said outer wall of inner tube is provided with pushing mechanism; Said outer tube wall is provided with blocking mechanism; Said pushing mechanism and said blocking mechanism said bilayer sleeve axially on be oppositely arranged; And the position of blocking mechanism with respect to pushing mechanism more near the bottom of bilayer sleeve, and be provided with spring between said pushing mechanism and the said blocking mechanism, said in pipe can be in the axially-movable of the said outer tube in the effect lower edge of said spring;
Said temperature sensor is made up of contact sonde and soft lead-in wire, and said contact sonde is fixed on the bottom of said interior pipe, and said soft lead-in wire stretches out the top of said interior pipe.
The device of aforesaid detection motor bearings temperature, said pushing mechanism and said blocking mechanism are the end face that boss and/or caliber dwindle formation.
The device of aforesaid detection motor bearings temperature, the length during said soft lead-in wire is managed in said is greater than the length of pipe in said self.
The device of aforesaid detection motor bearings temperature also comprises: protection tube;
Said protection tube links to each other with the top of said bilayer sleeve, is used to protect said soft lead-in wire to stretch out the part at said bilayer sleeve top.
The device of aforesaid detection motor bearings temperature, the material of said protection tube are red copper.
The device of aforesaid detection motor bearings temperature also comprises: nut;
Said nut sleeve is located at said bilayer sleeve outer wall, is used for said bilayer sleeve is fixed on said motor.
The device of aforesaid detection motor bearings temperature, said temperature sensor are PT100.
The device of aforesaid detection motor bearings temperature, the material of said bilayer sleeve are stainless steel.
The device of aforesaid detection motor bearings temperature, the outer tube of said bilayer sleeve has the bottom of sealing, the gap that has the compression travel that can satisfy said spring between interior pipe bottom and the outer tube bottom.
The present invention also provides a kind of detection motor bearings method of temperature, utilizes the device of aforesaid detection motor bearings temperature, comprising:
Said bilayer sleeve is located on the end cap of motor, the bottom of outer tube is contacted with the bearing seat of motor;
The extension of soft lead-in wire and the electric connector box of motor are electrically connected;
Contact sonde sends to electric connector box with the temperature signal of detected motor bearings through soft lead-in wire.
The apparatus and method of detection motor bearings temperature provided by the invention; Through a bilayer sleeve of forming by interior pipe and outer tube; Should can carry out resilient slip with respect to outer tube by interior pipe; With the contact sonde that guarantees temperature sensor can the time be engraved in the temperature of detection motor bearings under the pressure of regulation, can also the bigger temperature sensor that impact shock the caused vibration of absorptance, guarantee the precision of measuring.And adopt hard connecting mode to be convenient to be fixed on the traction electric machine between the motor, good rigidly and be not vulnerable to vibration; And all more convenient at the small space maintain and replace, in case the car that will traction electric machine falls that goes wrong not only needs temperature sensor extracted from bilayer sleeve and gets final product, practiced thrift the cost that keeps in repair, improved efficient.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the device of the detection motor bearings temperature that Fig. 1 provides for the embodiment of the invention one;
Fig. 2 is the structural representation of the bilayer sleeve among Fig. 1;
Fig. 3 is the another kind of structural representation of the bilayer sleeve among Fig. 1;
Fig. 4 is the vertical view of bilayer sleeve among Fig. 3;
Fig. 5 is the structural representation of the temperature sensor among Fig. 1;
Fig. 6 is the inner structure synoptic diagram of Fig. 1;
The synoptic diagram of the protection tube in the device of the detection motor bearings temperature that Fig. 7 provides for the embodiment of the invention;
Fig. 8 is the device of detection motor bearings temperature and the syndeton synoptic diagram between the motor.
Embodiment
For making the object of the invention, technical scheme and advantage clearer; To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention carried out clear, intactly description, obviously; Described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The structural representation of the device of the detection motor bearings temperature that Fig. 1 provides for the embodiment of the invention; As shown in Figure 1; The difference maximum with respect to bearing temperature sensor of the prior art of the device of this detection motor bearings temperature is: comprise a bilayer sleeve 1 of being made up of interior pipe and outer tube; Interior pipe can carry out resilient slip with respect to outer tube; With the contact sonde that guarantees temperature sensor 2 can the time be engraved in detected temperatures under the pressure of regulation, can also absorb 2 vibrations of the big temperature sensor that impact shock caused, guarantee the precision of measuring.
Fig. 2 is the structural representation of the bilayer sleeve among Fig. 1, and is as shown in Figure 2, and this bilayer sleeve 1 is by interior pipe 11 and 12 sheathed compositions of outer tube.Interior pipe 11 has the bottom of sealing.Interior pipe 11 outer walls are provided with pushing mechanism 11A; The inwall of outer tube 12 is provided with blocking mechanism 12A; Pushing mechanism 11A and blocking mechanism 12A bilayer sleeve 1 axially on be oppositely arranged; And be provided with spring 3 between pushing mechanism 11A and the blocking mechanism 12A, in this pipe 11 can be in the effect lower edge of spring 3 outer tube 12 axially do Elastic Sliding.
Wherein, pushing mechanism 11A and blocking mechanism 12A can be end face or boss.Pushing mechanism 11A shown in Fig. 2 and blocking mechanism 12A are that caliber dwindles and the end face that forms.When pushing mechanism 11A and blocking mechanism 12A are boss, can form the another kind of structural representation of bilayer sleeve as shown in Figure 3.The quantity of boss can be for one or more, when the quantity of boss when being a plurality of, can be positioned on the same circumference of pipe 11 outer walls and on the same circumference of outer tube 12 inwalls, and be preferably even distribution.Fig. 4 is the vertical view of bilayer sleeve among Fig. 3.Need to prove; Pushing mechanism 11A and blocking mechanism 12A can select to adopt end face or boss respectively; That is, adopt end face or boss during unnecessary seeking common ground, if in guaranteeing pipe can be inserted in the outer tube smoothly and in the effect lower edge of spring 3 outer tube 12 axially do Elastic Sliding.Thermometric for the benefit of, this bilayer sleeve 1 preferably has enough length, at least in pipe 11 bottoms seal; Be more preferably outer tube 12 bottoms and also be sealing; In after pipe 11 is inserted in, when spring 3 is under the normal condition, have suitable gap between the bottom of interior pipe 11, outer tube 12; The compression travel of spring 3 should be able to be satisfied in this gap, to avoid the bottom at interior pipe 11 compression springs 3 its bottom bump outer tube 12 after lower slider.
This bilayer sleeve 1 is a thin walled tube, helps the transmission of motor bearings temperature, and volume is little, anticorrosion, and good looking appearance.This bilayer sleeve 1 can adopt a lot of materials, for example stainless steel equal strength material preferably.
Fig. 5 is the structural representation of the temperature sensor among Fig. 1, and is as shown in Figure 5, and temperature sensor 2 is made up of contact sonde 21 and soft lead-in wire 22.Fig. 6 is the inner structure synoptic diagram of Fig. 1, and is wherein as shown in Figure 6, the bottom of pipe 11 in contact sonde 21 is fixed on, the top of pipe 11 in soft lead-in wire 22 stretches out.
The concrete model of this temperature sensor 2 can be decided according to actual conditions, the preferred PT100 that uses in the present embodiment.In passing, soft lead-in wire 22 during pipe 11 top, can fix with the top of interior pipe 11, even how movable the soft lead-in wire in interior like this pipe 11 outsides is, and the activity of the interior soft lead-in wire of pipe 11 in can not influencing.The length of pipe 11 self will be grown in the length of the inner soft lead-in wire 22 of pipe 11 was compared in staying, and was preferably in the present embodiment between long 5mm～20mm, as activity allowance length.
The synoptic diagram of the protection tube in the device of the detection motor bearings temperature that Fig. 7 provides for the embodiment of the invention, as shown in Figure 7, this protection tube 4 is connected with the top of bilayer sleeve 1, be used to protect soft lead-in wire 22 stretch out in the part at pipe 11 tops.The extension of soft lead-in wire 22 is located in the protection tube 4, can be effectively protected, and avoids under the abominable operating condition damage for the extension of soft lead-in wire 22.The material of this protection tube 4 can be for having certain rigidity and intensity, and can be bent into the material of needed shape, for example red copper.
Further, the device of aforesaid detection motor bearings temperature can also comprise nut.Nut can be set in the outer wall of bilayer sleeve 1, is used for bilayer sleeve 1 is fixed on motor.
When the device of using aforesaid detection motor bearings temperature detected the bearing temperature of motor, the device and the syndeton synoptic diagram between the motor that detect the motor bearings temperature can be as shown in Figure 8.Bilayer sleeve 1 is worn the entering motor from the outside of electric motor end cap 6; The bottom of this bilayer sleeve 1 is contacted with bearing seat; This just can directly touch the position nearest apart from bearing in the bearing cap that is equipped with bearing, can measure the temperature of motor bearings exactly.Be positioned at the sheathed nut 5 of part in electric motor end cap 6 outsides on the bilayer sleeve 1, be used for bilayer sleeve 1 fixing and locking in the outside of electric motor end cap 6, make like this bilayer sleeve 1 on electric motor end cap 6 dismounting and install all very simple and convenient.The extension of soft lead-in wire 22 and the electric connector box of motor are electrically connected, and contact sonde 21 sends to electric connector box with the temperature signal of detected motor bearings through soft lead-in wire 22.
When the device with aforesaid detection motor bearings temperature is installed on the motor; After being contained in motor on the locomotive car body again, though operating condition is more abominable, the device of this detection motor bearings temperature is hard contact pin type; Under the situation of nut lock, the effect of anti-vibration is very good; Simultaneously, owing in the double-layer stainless steel sleeve pipe spring is installed, contact sonde can detect the motor bearings temperature more exactly more near bearing under the pressure of regulation.The dismounting mode of this testing process is simple, and the fixation fastener that can outward winding protection tube in the narrow and small operating space is onboard unclamped nut then, extracts this device out and gets final product.
Present embodiment provides a kind of and has detected the device of motor bearings temperature and use this device detection motor bearings method of temperature; Through a bilayer sleeve of forming by interior pipe and outer tube; Interior pipe can carry out resilient slip with respect to outer tube; With the contact sonde that guarantees temperature sensor can the time be engraved in detected temperatures under the pressure of regulation, can also absorb the big temperature sensor that impact shock caused vibration, guarantee the precision of measuring.And adopt hard connecting mode to be convenient to be fixed on the traction electric machine between the motor, good rigidly and be not vulnerable to vibration; And all more convenient at the small space maintain and replace, in case the car that will traction electric machine falls that goes wrong not, practiced thrift maintenance cost, improved efficient.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (10)
1. a device that detects the motor bearings temperature is characterized in that, comprising: bilayer sleeve and temperature sensor;
Said bilayer sleeve is by interior pipe and outer tube is sheathed forms, and interior pipe has the bottom of sealing; Said outer wall of inner tube is provided with pushing mechanism; Said outer tube wall is provided with blocking mechanism; Said pushing mechanism and said blocking mechanism said bilayer sleeve axially on be oppositely arranged; And the position of blocking mechanism with respect to pushing mechanism more near the bottom of bilayer sleeve, and be provided with spring between said pushing mechanism and the said blocking mechanism, said in pipe can be in the axially-movable of the said outer tube in the effect lower edge of said spring;
Said temperature sensor is made up of contact sonde and soft lead-in wire, and said contact sonde is fixed on the bottom of said interior pipe, and said soft lead-in wire stretches out the top of said interior pipe.
2. the device of detection motor bearings temperature according to claim 1 is characterized in that, said pushing mechanism and said blocking mechanism are the end face that boss and/or caliber dwindle formation.
3. the device of detection motor bearings temperature according to claim 1 is characterized in that, the length during said soft lead-in wire is managed in said is greater than the length of pipe in said self.
4. the device of detection motor bearings temperature according to claim 1 is characterized in that, also comprises: protection tube;
Said protection tube links to each other with the top of said bilayer sleeve, is used to protect said soft lead-in wire to stretch out the part at said bilayer sleeve top.
5. the device of detection motor bearings temperature according to claim 4 is characterized in that, the material of said protection tube is a red copper.
6. the device of detection motor bearings temperature according to claim 1 is characterized in that, also comprises: nut;
Said nut sleeve is located at said bilayer sleeve outer wall, is used for said bilayer sleeve is fixed on said motor.
7. according to the device of each described detection motor bearings temperature in the claim 1 to 6, it is characterized in that said temperature sensor is PT100.
8. according to the device of each described detection motor bearings temperature in the claim 1 to 6, it is characterized in that the material of said bilayer sleeve is a stainless steel.
9. according to the device of each described detection motor bearings temperature in the claim 1 to 6, it is characterized in that the outer tube of said bilayer sleeve has the bottom of sealing, the gap that has the compression travel that can satisfy said spring between interior pipe bottom and the outer tube bottom.
10. a detection motor bearings method of temperature is characterized in that, utilizes the device of each described detection motor bearings temperature of claim 1 to 9, comprising:
Said bilayer sleeve is located on the end cap of motor, the bottom of outer tube is contacted with the bearing seat of motor;
The extension of soft lead-in wire and the electric connector box of motor are electrically connected;
Contact sonde sends to electric connector box with the temperature signal of detected motor bearings through soft lead-in wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010230597.0A CN102338667B (en) | 2010-07-16 | 2010-07-16 | Device and method for detecting temperature of motor bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010230597.0A CN102338667B (en) | 2010-07-16 | 2010-07-16 | Device and method for detecting temperature of motor bearing |
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| Publication Number | Publication Date |
|---|---|
| CN102338667A true CN102338667A (en) | 2012-02-01 |
| CN102338667B CN102338667B (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010230597.0A Active CN102338667B (en) | 2010-07-16 | 2010-07-16 | Device and method for detecting temperature of motor bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104235121A (en) * | 2013-06-09 | 2014-12-24 | 上海梅山钢铁股份有限公司 | Hydraulic oil tank temperature control method and device |
| CN107014513A (en) * | 2017-04-14 | 2017-08-04 | 东南大学 | A kind of bushing type platinum resistance temperature sensing device |
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| CN200968886Y (en) * | 2006-08-09 | 2007-10-31 | 重庆德马变频电机研发制造有限公司 | Motor bearing temperature sensing device |
| CN101213436A (en) * | 2005-07-13 | 2008-07-02 | 西门子公司 | Interface module of an electric motor for calculating the service life of a bearing |
| CN101266174A (en) * | 2007-03-14 | 2008-09-17 | 苏州新长光热能科技有限公司 | Thermocouple unit for casting ingot heating stove measuring aluminum ingot temperature |
| CN201269788Y (en) * | 2008-09-17 | 2009-07-08 | 莱芜泰钢热电有限公司 | Temperature measuring apparatus for high voltage motor |
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2010
- 2010-07-16 CN CN201010230597.0A patent/CN102338667B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101213436A (en) * | 2005-07-13 | 2008-07-02 | 西门子公司 | Interface module of an electric motor for calculating the service life of a bearing |
| CN200968886Y (en) * | 2006-08-09 | 2007-10-31 | 重庆德马变频电机研发制造有限公司 | Motor bearing temperature sensing device |
| CN101266174A (en) * | 2007-03-14 | 2008-09-17 | 苏州新长光热能科技有限公司 | Thermocouple unit for casting ingot heating stove measuring aluminum ingot temperature |
| CN201269788Y (en) * | 2008-09-17 | 2009-07-08 | 莱芜泰钢热电有限公司 | Temperature measuring apparatus for high voltage motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235121A (en) * | 2013-06-09 | 2014-12-24 | 上海梅山钢铁股份有限公司 | Hydraulic oil tank temperature control method and device |
| CN104235121B (en) * | 2013-06-09 | 2017-06-23 | 上海梅山钢铁股份有限公司 | A kind of temperature controlled method and apparatus of hydraulic oil container |
| CN107014513A (en) * | 2017-04-14 | 2017-08-04 | 东南大学 | A kind of bushing type platinum resistance temperature sensing device |
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| CN102338667B (en) | 2013-08-14 |
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Address after: 044502 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee after: CRRC YONGJI ELECTRIC CO., LTD. Address before: 044502 No. 18 motor street, Shanxi, Yongji Patentee before: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. |
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