CN201955174U - Device applied to multi-point rotor temperature measurement - Google Patents
Device applied to multi-point rotor temperature measurement Download PDFInfo
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- CN201955174U CN201955174U CN2011200229436U CN201120022943U CN201955174U CN 201955174 U CN201955174 U CN 201955174U CN 2011200229436 U CN2011200229436 U CN 2011200229436U CN 201120022943 U CN201120022943 U CN 201120022943U CN 201955174 U CN201955174 U CN 201955174U
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Abstract
The utility model discloses a device applied to multi-point rotor temperature measurement, which comprises a plurality of type-K thermocouples, a thermoelectrical potential signal acquisition and transmission module, a wireless receiving module and a PC (personal computer). The wireless receiving module is connected with the PC through a wire, the type-K thermocouples are respectively disposed on a rotor to be subjected to temperature measurement, the type-K thermocouples are connected with multiple electronic switches through wires, the thermoelectrical potential signal acquisition and transmission module is fixed to the center of the tail of the rotor or sleeved to the rotor, and thereby center of gravity of the thermoelectrical potential signal acquisition and transmission module and a rotation axis of the rotor are concentric. Serially acquired signals are sorted into thermoelectrical signal sequences acquired at different times through the channels according to quantity of the channels by the aid of the PC, real-time acquisition, output and display of multi-point temperature of the rotor are achieved, and the problems caused by multi-signal outlet and additional thermoelectrical potential of the rotor in rotation are well solved.
Description
Technical field
The utility model relates to a kind of machined components temperature survey, particularly relates to a kind of device that is applied to the rotary body multipoint temperature measuring.
Background technology
Mechanized equipment is in service, and a lot of parts are rotary bodies, need in some cases some points of these rotary bodies are carried out temperature survey.Such as, need to measure the temperature of turning rotational workpieces or milling rotary cutter in the research of machine cut mechanism.Only see that at present natural thermocouple that cutter-workpiece forms draws an end signal with current collector or thimble, brush, the other end is on non-rotary body, and these methods all are drawn out to the thermoelectrical potential signal of rotary body based on electric conductor the metering circuit of outer, stationary.As mercury bath collector is to rotate the torsion problem that solves signal output lead under the rotation status by a lead in mercury liquid, and thimble or electric brush type are the torsion problems that solves signal output lead under the rotation status by the i.e. effect of " brush " of the static hard conductor of hard conductor contact rotation.Measure the temperature of rotary body with standard couple, all on rotary body, two ends must be insulated from each other at the thermopair two ends, and what therefore must solve two leads draws torsion problem respectively.If with mercury or thimble, brush, then each standard couple needs two covers ejector insulated from each other, and such structure certainly will be very complicated, if export the signal of a plurality of standard couples simultaneously, its output unit just more is difficult to realize.The more important thing is that all there is the phenomenon that rubs between the conductor in these methods, can produce the additional heat electromotive force, have a strong impact on measuring accuracy.
Thermopair is present temperature probe reliable and commonly used.In equipment manufacturing and in service, use thermocouple temperature measurement to rotary body, particularly multi-point temperature measurement must solve the problem that a plurality of faint thermoelectrical potential signals transmit simultaneously.Under the rotation status, the output intent at present commonly used of the thermoelectrical potential signal that standard couple collects has mercury bath collector, copper thimble and electric brush type etc.The shortcoming of these methods is: the two ends of (1) standard couple can collect a thermoelectrical potential signal respectively, thermoelectrical potential signal demand of every output one cover signal ejector, will the 2n covering device if measure temperature that n orders simultaneously with thermopair, its structure certainly will be very complicated; (2) under the rotation status, the friction between the dynamic and static body of signal transmission conductor can produce the additional heat electromotive force, also is the output fidelity difficulty of pyroelectric signal, influences measuring accuracy.Only see that at present natural thermocouple that cutter-workpiece forms draws an end signal with mercury bath collector or thimble, brush, the other end is on non-rotary body, yet there are no other people and study the problem of drawing of the signal of rotary body standard couple, because two ends are all on rotary body, and two ends must be insulated from each other.
The utility model content
The purpose of this utility model is to overcome the problem that prior art exists, and the device that is applied to the rotary body multipoint temperature measuring is provided.
The utility model comprises that the acquisition time of a plurality of thermopairs, multi-point temperature measurement signal and Real-Time Filtering, amplification, A/D change, the circuit module of wireless transmit, it is fixed on appropriate location on rotational workpieces or the rotary cutter, corresponding wireless receiver and serial signal processing circuit module, Displaying Meter or computing machine are set outside rotary body, transfer to the problem of outside non-rotating equipment circuit by a plurality of thermocouple temperature measurement signals on the Wireless transmission mode solution rotary body.The temperature pyroelectric signal of multiple spot on the rotary body, the K type thermopair 1 that is positioned in each point is gathered, and deliver to amplifying circuit and filtering circuit in turn by a multi-channel electronic switch and amplify and filtering, enter the A/D change-over circuit again and be converted to digital signal, launch to the external world by wireless launcher then, the wireless receiving module of outer, stationary receives signal, transports to Displaying Meter or PC and shows or handle, store.
The utility model purpose is achieved through the following technical solutions:
A kind of rotary body multipoint temperature measuring thermoelectrical potential signal wireless output unit comprises K type thermopair, thermoelectrical potential signals collecting and transmitter module, wireless receiving module and PC; Described thermoelectrical potential signals collecting and transmitter module comprise multi-channel electronic switch, amplifying circuit, filtering circuit, A/D change-over circuit, CPU, wireless transmitter module and battery, multi-channel electronic switch, amplifying circuit, filtering circuit, A/D change-over circuit and CPU signal successively are connected, CPU also is connected with multi-channel electronic switch, wireless transmitter module and battery respectively, and battery also is connected with wireless transmitter module with multi-channel electronic switch, amplifying circuit, filtering circuit, A/D change-over circuit respectively; Described wireless receiving module is connected with PC by lead, and wireless transmitter module is connected with the wireless receiving module signal; A plurality of K type thermopairs are separately positioned on the rotary body for the treatment of thermometric, and K type thermopair is connected with multi-channel electronic switch by lead; Described electric potential signal collection and transmitter module are fixed on rotary body afterbody center, and perhaps gesture signals collecting and transmitter module are enclosed within on the rotary body, make the center of gravity of electric potential signal collection and transmitter module concentric with the rotary body turning axle.
For further realizing the utility model purpose, described rotary body is a turner, turner is fixed on the lathe by scroll chuck, and rotate with scroll chuck, K type thermopair is fixed on the turner, be positioned near the working position of lathe tool, electric potential signal collection and transmitter module directly are fixed on the tail end of turner by bolt and copper post pad.
Described rotary body is a milling cutter, the milling workpiece is fixed on the milling machine motionless, milling cutter is fixed on the milling machine by cutter holder, electric potential signal collection and transmitter module are hollow ring device, electric potential signal collection and transmitter module are fixed on cutter holder by super glue, milling cutter passes annular electromotive force signals collecting and transmitter module intermediate throughholes, and K type thermopair is fixed on the front end of milling cutter, near the milling workpiece.
The utility model has following advantage with respect to prior art:
(1) using rfid technology substitutes drawing of the rotary body of cable technology realization in the past signal, makes that the signal ejector is simple, has avoided the sound friction to produce the additional heat electromotive force and influence the measuring accuracy problem simultaneously;
(2) under the cutting state, the particularly measurement of rotary cutter temperature, temperature pyroelectric signal acquisition module 10 and cutter are fixed together, if the barycenter of temperature pyroelectric signal acquisition module 10 is not on the turning axle, certainly will produce centrifugal force under the rotation status, rotational speed is high more centrifugal high more, this must influence the performance of lathe, the utility model is done the pcb board of temperature pyroelectric signal acquisition module 10 and is circularized for this reason, allow cutter pass the pcb board center of temperature collect module 10, and make the center that the barycenter of temperature pyroelectric signal acquisition module is just encircling by static equilibrium experiment, be on the turning axle with regard to the barycenter of guaranteeing temperature pyroelectric signal acquisition module like this, avoided the problem of high speed rotating centrifugal force.
Description of drawings
Fig. 1 is the device circuit schematic diagram that is applied to the rotary body multipoint temperature measuring;
Fig. 2 is rotational workpieces multipoint temperature measuring apparatus structure synoptic diagram under the turning state;
Fig. 3 is rotary cutter multipoint temperature measuring apparatus structure synoptic diagram under the milling state;
Fig. 4 gathers during for turning with transmitter module and is fixed on synoptic diagram on the turner;
Fig. 5 gathers during for milling with transmitter module and is fixed on synoptic diagram on the milling cutter.
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing, but the claimed scope of the utility model is not limited to the scope of embodiment statement.
As shown in Figure 1, a kind of device that is applied to the rotary body multipoint temperature measuring comprises K type thermopair 1, thermoelectrical potential signals collecting and transmitter module 10, wireless receiving module 8 and PC 9; Thermoelectrical potential signals collecting and transmitter module 10 comprise multi-channel electronic switch 2, amplifying circuit 3, filtering circuit 4, A/D change-over circuit 5, CPU6, wireless transmitter module 7 and battery 21, multi-channel electronic switch 2, amplifying circuit 3, filtering circuit 4, A/D change-over circuit 5 and CPU6 signal successively are connected, CPU6 also is connected with multi-channel electronic switch 2, wireless transmitter module 7 and battery 21 respectively, and battery 21 also is connected with multi-channel electronic switch 2, amplifying circuit 3, filtering circuit 4, A/D change-over circuit 5 and wireless transmitter module 7 respectively; Wireless receiving module 8 is connected with PC 9 by lead, and wireless transmitter module 7 is connected with wireless receiving module 8 signals.A plurality of K type thermopairs 1 are separately positioned on the rotary body for the treatment of thermometric, and the multi-channel electronic switch 2 of electric potential signal collection and transmitter module 10 imported pyroelectric signal by lead by K type thermopair 1; Electric potential signal collection and transmitter module 10 perhaps are enclosed within rotary body 15 to electric potential signal collection and transmitter module 10 by being bolted to rotary body 13 afterbody centers; Electric potential signal is gathered with the center of gravity of transmitter module 10 concentric with the rotary body turning axle, the generation of centrifugal force when avoiding high speed rotating.
Electric potential signal collection and transmitter module 10 have carried out filtering, amplification and analog to digital conversion to the thermoelectrical potential that K type thermopair 1 collects, and signal is emitted by wireless transmitter module 7; Wireless receiving module 8 receives the signal of launching from wireless transmitter module 7; Each electronic component work in CPU6 control electric potential signal collection and the transmitter module 10; PC 9 the signal that wireless receiving module 8 receives from electric potential signal collection and transmitter module 10 restore, the coupling of electromotive force and temperature value, that is to say that a data further puts in order, and magnitude of voltage be converted to temperature value, and show on request; The effect of multi-channel electronic switch 2 is that the signal that collects from a plurality of K type thermopairs 1 is taken turns input amplifying circuit 3 in electric potential signal collection and the transmitter module 10; The effect of amplifying circuit 3 is that the signal of gathering from K type thermopair 1 is amplified; Filtering circuit 4 is that the clutter in the original signal that collects is filtered out; A/D change-over circuit 5 is to be analog signal conversion digital signal; Wireless launcher 7 is launching from the signal of A/D change-over circuit 5.
Shown in Fig. 2,4, under the turning state, lathe tool 11 is fixed on the lathe, and turner 13 is fixed on the lathe by scroll chuck 12, and with scroll chuck 12 rotations.When measuring the temperature of rotational workpieces, K type thermopair 1, electric potential signal collection and transmitter module 10 all are fixed on the turner 13, wherein, K type thermopair 1 is fixed on the turner 13, be positioned near the working position of lathe tool 11, electric potential signal collection and transmitter module 10 directly are fixed on the tail end of turner 13 by bolt 18 and copper post pad 19, and the center of gravity of electric potential signal collection and transmitter module 10 is concentric with turning axle, the generation of centrifugal force when avoiding high speed rotating.
Shown in Fig. 3,5, under the milling state, milling workpiece 14 is fixed on the milling machine 17 motionless, milling cutter 15 is processed as rotary body and is wanted milling workpiece 14, milling cutter 15 is fixed on the milling machine by cutter holder 20, electric potential signal collection and transmitter module 10 are made hollow ring device, electric potential signal collection and transmitter module 10 are fixed on cutter holder 20 by super glue 22, milling cutter 15 passes annular electromotive force signals collecting and transmitter module 10 intermediate throughholes, K type thermopair 1 is fixed on the front end of milling cutter 15, near milling workpiece 14.K type thermopair 1, electric potential signal collection and transmitter module 10 all are fixed on the milling cutter 15, and the center of gravity of electric potential signal collection and transmitter module 10 is concentric with milling cutter 15 turning axles, the generation of centrifugal force when avoiding high speed rotating.
During thermometric work, start electric potential signal collection and transmitter module 10, CPU6 controls multi-channel electronic switch 2, make electric potential signal collection and transmitter module 10 enter amplifying circuit 3 and filtering circuit 4 in turn, carry out the amplification and the filtering of thermoelectrical potential signal from the thermoelectrical potential signal that a plurality of K type thermopairs 1 collect; Process is amplified and filtering circuit amplifies and filtered thermoelectrical potential simulating signal enters A/D change-over circuit 5, and CPU6 is the thermoelectrical potential analog signal conversion digital signal; Handle the thermoelectrical potential digital signal that obtains sends to the outer, stationary attitude by wireless transmitter module 7 wireless receiving module 8 through CPU6, wireless receiving module 8 is subjected to the control of PC 9, receive the signal that wireless launcher 7 is launched, wireless receiving module 8 is input to the thermoelectrical potential signal that receives in the PC 9 and handles, stores and show.PC 9 processes electric potential signal collection and transmitter module 10 amplify, the information of A/D conversion is reduced, and just obtain the initial value that K type thermopair 1 is gathered after the reduction.According to K type thermopair electromotive force---temperature value corresponding tables, electric potential signal is converted to temperature value again, thereby realizes collection, transmission and the demonstration of each point temperature.
The passage of the zero-time of the utility model signals collecting, each time interval of gathering, acquired signal and the order of these passage acquired signal are set in advance by control program, PC is the signal of gathering like this, according to what of passage, be organized into the thermoelectrical potential burst that each passage collects in different time points, and each a passage thermoelectrical potential value that obtains reverts to original value, according to the mapping table of standard couple potential value and temperature value, be the thermoelectrical potential conversion of signals temperature value again.Thereby realize real-time collection, output and the demonstration of rotary body multi-point temp.When having solved under the rotation status standard thermocouple measurement multi-point temp well, the drawing and avoid the additional heat electromotive force to have problems of many signals.The utility model proposes thermoelectrical potential signal that a plurality of standard couples are collected and output to the wireless signal receiving circuit of outer, stationary attitude, be input to computing machine at last by being fixed on radio transmitter in the thermoelectrical potential acquisition module on the rotary body.
Claims (3)
1. a device that is applied to the rotary body multipoint temperature measuring is characterized in that, comprises K type thermopair, thermoelectrical potential signals collecting and transmitter module, wireless receiving module and PC; Described thermoelectrical potential signals collecting and transmitter module comprise multi-channel electronic switch, amplifying circuit, filtering circuit, A/D change-over circuit, CPU, wireless transmitter module and battery, multi-channel electronic switch, amplifying circuit, filtering circuit, A/D change-over circuit and CPU signal successively are connected, CPU also is connected with multi-channel electronic switch, wireless transmitter module and battery respectively, and battery also is connected with wireless transmitter module with multi-channel electronic switch, amplifying circuit, filtering circuit, A/D change-over circuit respectively; Described wireless receiving module is connected with PC by lead, and wireless transmitter module is connected with the wireless receiving module signal; A plurality of K type thermopairs are separately positioned on the rotary body for the treatment of thermometric, and K type thermopair is connected with multi-channel electronic switch by lead; Described electric potential signal collection and transmitter module are fixed on rotary body afterbody center, and perhaps gesture signals collecting and transmitter module are enclosed within on the rotary body, make the center of gravity of electric potential signal collection and transmitter module concentric with the rotary body turning axle.
2. the device that is applied to the rotary body multipoint temperature measuring according to claim 1, it is characterized in that: described rotary body is a turner, turner is fixed on the lathe by scroll chuck, and rotate with scroll chuck, K type thermopair is fixed on the turner, be positioned near the working position of lathe tool, electric potential signal collection and transmitter module directly are fixed on the tail end of turner by bolt and copper post pad.
3. the device that is applied to the rotary body multipoint temperature measuring according to claim 1, it is characterized in that: described rotary body is a milling cutter, the milling workpiece is fixed on the milling machine motionless, milling cutter is fixed on the milling machine by cutter holder, electric potential signal collection and transmitter module are hollow ring device, and electric potential signal collection and transmitter module are fixed on cutter holder by super glue, and milling cutter passes annular electromotive force signals collecting and transmitter module intermediate throughholes, K type thermopair is fixed on the front end of milling cutter, near the milling workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200229436U CN201955174U (en) | 2011-01-21 | 2011-01-21 | Device applied to multi-point rotor temperature measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200229436U CN201955174U (en) | 2011-01-21 | 2011-01-21 | Device applied to multi-point rotor temperature measurement |
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| Publication Number | Publication Date |
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| CN201955174U true CN201955174U (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200229436U Expired - Fee Related CN201955174U (en) | 2011-01-21 | 2011-01-21 | Device applied to multi-point rotor temperature measurement |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161167A (en) * | 2011-01-21 | 2011-08-24 | 华南理工大学 | Method and device of wirelessly outputting thermoelectric force signal for multi-point temperature measuring of rotator |
| CN103674312A (en) * | 2013-11-22 | 2014-03-26 | 大连日佳电子有限公司 | Non-contact temperature measurement method and device |
| CN103801986A (en) * | 2014-02-17 | 2014-05-21 | 谭光宇 | Built-in optical fiber real-time continuous infrared temperature measuring cutter handle |
| CN103801985A (en) * | 2014-02-17 | 2014-05-21 | 李广慧 | Built-in real-time continuous temperature measuring cutter handle |
| CN106225942A (en) * | 2016-08-15 | 2016-12-14 | 华南理工大学 | A kind of method measuring overhead transmission line natural convection temperature field |
-
2011
- 2011-01-21 CN CN2011200229436U patent/CN201955174U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102161167A (en) * | 2011-01-21 | 2011-08-24 | 华南理工大学 | Method and device of wirelessly outputting thermoelectric force signal for multi-point temperature measuring of rotator |
| CN103674312A (en) * | 2013-11-22 | 2014-03-26 | 大连日佳电子有限公司 | Non-contact temperature measurement method and device |
| CN103801986A (en) * | 2014-02-17 | 2014-05-21 | 谭光宇 | Built-in optical fiber real-time continuous infrared temperature measuring cutter handle |
| CN103801985A (en) * | 2014-02-17 | 2014-05-21 | 李广慧 | Built-in real-time continuous temperature measuring cutter handle |
| CN103801985B (en) * | 2014-02-17 | 2016-08-17 | 广东海洋大学 | A kind of built-in real-time continuous thermometric handle of a knife |
| CN103801986B (en) * | 2014-02-17 | 2016-10-05 | 广东海洋大学 | A kind of built-in optical fiber real-time continuous infrared measurement of temperature handle of a knife |
| CN106225942A (en) * | 2016-08-15 | 2016-12-14 | 华南理工大学 | A kind of method measuring overhead transmission line natural convection temperature field |
| CN106225942B (en) * | 2016-08-15 | 2018-11-02 | 华南理工大学 | A method of measuring overhead transmission line natural convection temperature field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20140121 |