CN101852653A - Device and method for measuring working temperature of bearing - Google Patents
Device and method for measuring working temperature of bearing Download PDFInfo
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Abstract
The invention relates to a device and a method for measuring the working temperature of a bearing. The device comprises a temperature-measuring and recording system and a temperature data reading and displaying system, wherein the temperature-measuring and recording system consists of a temperature-sensing detector, a temperature-measuring controller, a centrifugal force switch or a rotating speed switch, a linear voltage regulator or a power management chip, a data storage chip and an insulating material; the temperature data reading and displaying system consists of a communication interface and a computer; the working temperature is measured on line and recorded through the temperature-measuring and recording system; the temperature data is read and stored after the measurement; and the measured temperature data can be displayed through the temperature data reading and displaying system. The device has the advantages of capability of guaranteeing that the working temperature of the bearing is measured accurately and effectively, small volume, easy installation, low power consumption and capability of measuring for a long time in the working environment of the high-speed bearing.
Description
Technical field
The present invention relates to a kind of temperature measuring equipment and measuring method, be specifically related to a kind of temperature measuring equipment and measuring method of bearing working temperature.
Background technology
In industrial circle, there are engine and other rotary machine in a large number, the ruuning situation that these are mechanical and the duty of its internal bearings are closely related, and the working temperature of internal bearings is the very important parameter that characterizes the bearing working state, therefore need measure in real time the working temperature of internal bearings.Working temperature measurement to bearing at present has two kinds of methods: a kind of method is that temperature-sensing probe and bearing are contacted, with the temperature of temperature-sensing probe sensing bearing and by method of wireless communication data transmission is arrived outside pen recorder, this method is with the working temperature of the direct sensing bearing of temperature-sensing probe, the precision of measuring under the good situation of the signal condition of radio communication can guarantee, the precision that can not guarantee to measure but wireless signal is very easy to be subjected to the interference of engine interior complex environment condition; Cause the volume of this measurement mechanism big owing to have radio communication device in addition, be inconvenient to install; And radio communication device sends signal in order to penetrate the bearing external component, and the power consumption of its transmitter module just needs height, causes overheated easily can't being competent at a high speed and for a long time to be measured thus.Another kind method is to measure indirectly, be exactly temperature or other correlative of measuring the liquid coolant of the bearing of flowing through in advance, go out relation between the working temperature of coolant temperature and bearing by corresponding mathematics model analysis then, thereby extrapolate the working temperature of bearing indirectly, though the measurement mechanism of this method can be measured the bearing of high speed rotating, Measuring Time is also unrestricted.But as a kind of indirect measuring method, its measuring accuracy depends on the mathematical model that adopted and the similarity degree of actual environment to a great extent, and the working environment of the bearing of most of high speed rotating is very complicated in the reality, various boundary conditions are difficult to or even can't measure, therefore the levels of precision of mathematical model is very limited, thereby makes the poor accuracy of temperature-measuring results.
Summary of the invention
In order to overcome the deficiency that above-mentioned prior art exists, the object of the present invention is to provide a kind of temperature measuring equipment and measuring method of bearing working temperature, this device is by temperature-sensing probe, temperature measurement controller, centrifugal switch or speed switch, linear voltage regulator or power management chip, pin-saving chip and thermal insulation material are formed thermometric and register system, also have the temperature data of forming by communication interface and computing machine to read and display system in addition in the device, working temperature and record by thermometric and register system on-line measurement bearing, measure and finish reading temperature data and storage afterwards, can also read with display system by temperature data and show the measurement temperature data, guaranteed accurately effectively to measure the working temperature of bearing, this device volume is little simultaneously, be easy to install, low in energy consumption and can in the working environment of high-speed bearing, measure for a long time.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of temperature measuring equipment of bearing working temperature, comprise and the contacted temperature-sensing probe 1 in bearing rotation position, the output port 22 of described temperature-sensing probe 1 is connected with the input port 23 of temperature measurement controller 2, described temperature measurement controller 2 is amplified and filtering circuit 7 by signal, A/D change-over circuit 8 and microprocessor MCU9 and connecting and composing between them, the input port 23 of temperature measurement controller 2 is connected with the input end 42 of filtering circuit 7 with its signal amplification, the signal amplification is connected with the output terminal 43 of filtering circuit 7 and the input end 44 of A/D change-over circuit 8, the output terminal 45 of A/D change-over circuit 8 is connected with the input port 46 of microprocessor MCU9, the output port 47 of microprocessor MCU9 is connected with the output port 24 of temperature measurement controller 2, the control port 48 of microprocessor MCU9 is connected with the control port 26 of temperature measurement controller 2, the enable port 49 of microprocessor MCU9 is connected with the enable port 28 of temperature measurement controller 2, the power port 50 of microprocessor MCU9 is connected with the power port 34 of temperature measurement controller 2, the low-power consumption module is arranged in the microprocessor MCU9, the collecting temperature data module, time delay module and measurement finish judge module, the output port 24 of temperature measurement controller 2 is connected with the input port 25 of pin-saving chip 3, the control port 26 of temperature measurement controller 2 is connected with the enable port 32 of the enable port 31 of power management chip 4 and pin-saving chip 3, in the power management chip 4 initialization module is arranged, the enable port 28 of temperature measurement controller 2 is connected with the output port 27 of speed switch 5, the rotating speed contact of speed switch 5 and the rotation position of bearing contact, the power port 34 of temperature measurement controller 2, the power port 33 of temperature-sensing probe 1, the power port 35 of pin-saving chip 3 and the power port 36 of speed switch 5 are connected with the output port 21 of power management chip 4, at power management chip 4, temperature measurement controller 2, fill such temperature-sensing probe 1 with thermal insulation material 6 between pin-saving chip 3 and the speed switch 5, temperature measurement controller 2, pin-saving chip 3, power management chip 4 and speed switch 5 and connected and composed thermometric and register system between them; The data-out port 38 of the pin-saving chip 3 in thermometric and the register system and the data-in port 39 of single-chip microcomputer 10 are connected, single-chip microcomputer 10 inside have data to read and display module, the data-out port 40 of single-chip microcomputer 10 is connected with the data communication port 41 of computing machine 11, such single-chip microcomputer 10 and computing machine 11 and connected and composed that temperature data is read and display system between them.
Described speed switch 5 can replace with centrifugal switch.
Described power management chip 4 can replace with linear voltage regulator.
The measuring method of the temperature measuring equipment of above-mentioned measurement bearing working temperature, step is as follows:
Step 1: initial phase, promptly give its initialization module of power management chip 4 electrifying startups, microprocessor MCU9 and speed switch 5 power supplies of initialization module drive output mouth 21 in temperature measurement controller 2 start, in addition default critical startup tachometer value on speed switch 5;
Step 2: the dormant stage, be i.e. call its low-power consumption module when microprocessor MCU9 power supply starts microprocessor 9 is placed low power consumpting state;
Step 3: start working the judgement stage, promptly when speed switch 5 does not receive the tach signal at bearing rotation position, continue the dormant stage, and receive the tach signal at bearing rotation position and during when speed switch 5 greater than its default critical startup tachometer value, speed switch 5 conductings are also sent to the enable port 28 of temperature measurement controller 2 by its output port 27 and to be interrupted the low power consumpting state signal, microprocessor MCU9 calls its collecting temperature data module subsequently, thereby withdraws from low power consumpting state;
Step 4: data acquisition phase, promptly call its collecting temperature data module by microprocessor MCU9, at first will start the instruction of temperature-sensing probe power supply sends to power management chip 4 through the control port 26 of temperature measurement controller 2 by the control port 48 of microprocessor MCU9 enable port 31, the output port 21 of power management chip 4 is by driving the power port 33 of temperature-sensing probe 1 thus, to temperature-sensing probe 1 power supply, temperature-sensing probe 1 is sent to by output port 22 the working temperature electric signal of bearing the input end 42 of signal amplification and filtering circuit 7 through the input port 23 of temperature measurement controller 2 by contact bearing rotation position, handle through the signal amplification and the amplification filtering of the working temperature electric signal of 7 pairs of these bearings of filtering circuit, working temperature electric signal after the processing amplifies the input end 44 that is sent to A/D change-over circuit 8 with the output terminal 43 of filtering circuit 7 through signal, this signal is carried out analog to digital conversion, the working temperature numerical data of the bearing after the conversion is sent to the input port 46 of microprocessor MCU9 by the output terminal 45 of A/D change-over circuit 8, microprocessor MCU9 calls the working temperature data that its temperature transition module obtains real-time bearing after with working temperature numerical data homogenizing thus, and these working temperature data are stored in the register of microprocessor MCU9, then the instruction of log-on data storage chip power supply is sent to the enable port 31 of power management chip 4 through the control port 26 of temperature measurement controller 2 by the control port 48 of microprocessor MCU9, the output port 21 of power management chip 4 is by the power port 35 of pin-saving chip 3 thus, to pin-saving chip 3 power supplies, the working temperature data of real-time subsequently bearing are sent to the input port 25 of pin-saving chip 3 through the output port 24 of temperature measurement controller 2 by the output port 47 of microprocessor MCU9, preserve by 3 pairs of these data of pin-saving chip, after preservation finishes, microprocessor MCU9 disposes these data in its register, and will close the instruction of pin-saving chip power supply sends to power management chip 4 through the control port 26 of temperature measurement controller 2 by the control port 48 of microprocessor MCU9 enable port 31, the output port 21 of power management chip 4 is by the power port 35 of pin-saving chip 3, with pin-saving chip 3 outages thus;
Step 5: in the time-delay stage, promptly microprocessor MCU9 calls the low-power consumption module and enters low power consumpting state, calls its time delay module subsequently, postpones to wait for that the time that continues is the sampling time interval of the timer setting of microprocessor MCU9 inside;
Step 6: measure and finish the judgement stage, be that microprocessor MCU9 calls and measure to finish judge module and check whether the data volume in the pin-saving chip 3 reaches the value of setting, if reach, show that gatherer process finishes, then forward step 7 to, if data volume does not reach preset value as yet, then forward step 4 cycling to;
Step 7: stop phase, promptly microprocessor MCU9 calls the low-power consumption module and enters low power consumpting state;
Step 8: data read stage, promptly behind the temperature survey end-of-job, start computing machine 11 and connect single-chip microcomputer 10, read with the data-out port 38 of display module driver module driving data storage chip 3 by the data of single-chip microcomputer 10 inside the bearing working temperature data that measures is sent to the data-in port 39 of single-chip microcomputer 10, the data-out port 40 by single-chip microcomputer 10 sends to the data communication port 41 of computing machine 11 with these data and is presented on the display screen of computing machine 11 again immediately.
The measuring method of the temperature measuring equipment of above-mentioned measurement bearing working temperature can also be the method that comprises that step is following:
Step 1: initial phase, promptly give its initialization module of power management chip 4 electrifying startups, microprocessor MCU9 and speed switch 5 power supplies of initialization module drive output mouth 21 in temperature measurement controller 2 start, in addition default critical startup tachometer value on speed switch 5;
Step 2: the dormant stage, be i.e. call its low-power consumption module when microprocessor MCU9 power supply starts microprocessor 9 is placed low power consumpting state;
Step 3: start working the judgement stage, promptly when speed switch 5 does not receive the tach signal at bearing rotation position, continue the dormant stage, and receive the tach signal at bearing rotation position and during when speed switch 5 greater than its default critical startup tachometer value, speed switch 5 conductings are also sent to the enable port 28 of temperature measurement controller 2 by its output port 27 and to be interrupted the low power consumpting state signal, microprocessor MCU9 calls its collecting temperature data module subsequently, thereby withdraws from low power consumpting state;
Step 4: data acquisition phase, promptly call its collecting temperature data module by microprocessor MCU9, at first will start the instruction of temperature-sensing probe power supply sends to power management chip 4 through the control port 26 of temperature measurement controller 2 by the control port 48 of microprocessor MCU9 enable port 31, the output port 21 of power management chip 4 is by driving the power port 33 of temperature-sensing probe 1 thus, to temperature-sensing probe 1 power supply, temperature-sensing probe 1 is sent to by output port 22 the working temperature electric signal of bearing the input end 42 of signal amplification and filtering circuit 7 through the input port 23 of temperature measurement controller 2 by contact bearing rotation position, handle through the signal amplification and the amplification filtering of the working temperature electric signal of 7 pairs of these bearings of filtering circuit, working temperature electric signal after the processing amplifies the input end 44 that is sent to A/D change-over circuit 8 with the output terminal 43 of filtering circuit 7 through signal, this signal is carried out analog to digital conversion, the working temperature numerical data of the bearing after the conversion is sent to the input port 46 of microprocessor MCU9 by the output terminal 45 of A/D change-over circuit 8, microprocessor MCU9 calls the working temperature data that its temperature transition module obtains real-time bearing after with working temperature numerical data homogenizing thus, and these working temperature data are stored in the register of microprocessor MCU9, judge then whether this register is filled with, if register less than, change step 5 over to, if register is full, send to the enable port 31 of power management chip 4 through the control port 26 of temperature measurement controller 2 by the control port 48 of microprocessor MCU9 with regard to the instruction of log-on data storage chip power supply, the output port 21 of power management chip 4 is by the power port 35 of pin-saving chip 3 thus, to pin-saving chip 3 power supplies, the working temperature data of real-time subsequently bearing are sent to the input port 25 of pin-saving chip 3 through the output port 24 of temperature measurement controller 2 by the output port 47 of microprocessor MCU9, preserve by 3 pairs of these data of pin-saving chip, after preservation finishes, microprocessor MCU9 disposes these data in its register, and will close the instruction of pin-saving chip power supply sends to power management chip 4 through the control port 26 of temperature measurement controller 2 by the control port 48 of microprocessor MCU9 enable port 31, the output port 21 of power management chip 4 is by the power port 35 of pin-saving chip 3, with pin-saving chip 3 outages thus;
Step 5: in the time-delay stage, promptly microprocessor MCU9 calls the low-power consumption module and enters low power consumpting state, calls its time delay module subsequently, postpones to wait for that the time that continues is the sampling time interval of the timer setting of microprocessor MCU9 inside;
Step 6: measure and finish the judgement stage, be that microprocessor MCU9 calls and measure to finish judge module and check whether the data volume in the pin-saving chip 3 reaches the value of setting, if reach, show that gatherer process finishes, then forward step 7 to, if data volume does not reach preset value as yet, then forward step 4 cycling to;
Step 7: stop phase, promptly microprocessor MCU9 calls the low-power consumption module and enters low power consumpting state;
Step 8: data read stage, promptly behind the temperature survey end-of-job, start computing machine 11 and connect single-chip microcomputer 10, read with the data-out port 38 of display module driver module driving data storage chip 3 by the data of single-chip microcomputer 10 inside the bearing working temperature data that measures is sent to the data-in port 39 of single-chip microcomputer 10, the data-out port 40 by single-chip microcomputer 10 sends to the data communication port 41 of computing machine 11 with these data and is presented on the display screen of computing machine 11 again immediately.
A kind of temperature measuring equipment and measuring method of measuring the bearing working temperature of the present invention, owing to adopt contact temperature-measuring method with the contacted temperature-sensing probe 1 in bearing rotation position, and make thermometric accurate in conjunction with the method for amplification, filtering and the digitized processing bearing working signal of temperature measurement controller 2, and the shortcoming that the signal of radio communication disturbs can not appear; Simultaneously whole temperature measuring equipment circuit design is simple, make whole device be easy to install; Adopt the sub-unit power supply mode under the microprocessor MCU9 control in the measuring method, make the low in energy consumption of whole device; By the buffer action of thermal insulation material, this device can tolerate the condition of work of high temperature and big rotating speed, and can keep accurately measuring for a long time real-time bearing working temperature.
Description of drawings
Fig. 1 is the structural representation of thermometric of the present invention and register system.
Fig. 2 is the structural representation of temperature measurement controller of the present invention.
Fig. 3 is that temperature data of the present invention is read the structural representation with display system.
Embodiment
The present invention will be described in more detail below in conjunction with drawings and Examples.
Embodiment 1:
As Fig. 1, Fig. 2 and shown in Figure 3, measure the temperature measuring equipment of bearing working temperature, comprise and the contacted temperature-sensing probe 1 in bearing rotation position, the output port 22 of described temperature-sensing probe 1 is connected with the input port 23 of temperature measurement controller 2, described temperature measurement controller 2 is amplified and filtering circuit 7 by signal, A/D change-over circuit 8 and microprocessor MCU9 and connecting and composing between them, the input port 23 of temperature measurement controller 2 is connected with the input end 42 of filtering circuit 7 with its signal amplification, the signal amplification is connected with the output terminal 43 of filtering circuit 7 and the input end 44 of A/D change-over circuit 8, the output terminal 45 of A/D change-over circuit 8 is connected with the input port 46 of microprocessor MCU9, the output port 47 of microprocessor MCU9 is connected with the output port 24 of temperature measurement controller 2, the control port 48 of microprocessor MCU9 is connected with the control port 26 of temperature measurement controller 2, the enable port 49 of microprocessor MCU9 is connected with the enable port 28 of temperature measurement controller 2, the power port 50 of microprocessor MCU9 is connected with the power port 34 of temperature measurement controller 2, the low-power consumption module is arranged in the microprocessor MCU9, the collecting temperature data module, time delay module and measurement finish judge module, the output port 24 of temperature measurement controller 2 is connected with the input port 25 of pin-saving chip 3, the control port 26 of temperature measurement controller 2 is connected with the enable port 32 of the enable port 31 of power management chip 4 and pin-saving chip 3, in the power management chip 4 initialization module is arranged, the enable port 28 of temperature measurement controller 2 is connected with the output port 27 of speed switch 5, the rotating speed contact of speed switch 5 and the rotation position of bearing contact, the power port 34 of temperature measurement controller 2, the power port 33 of temperature-sensing probe 1, the power port 35 of pin-saving chip 3 and the power port 36 of speed switch 5 are connected with the output port 21 of power management chip 4, at power management chip 4, temperature measurement controller 2, fill such temperature-sensing probe 1 with thermal insulation material 6 between pin-saving chip 3 and the speed switch 5, temperature measurement controller 2, pin-saving chip 3, power management chip 4 and speed switch 5 and connected and composed thermometric and register system between them; The data-out port 38 of the pin-saving chip 3 in thermometric and the register system and the data-in port 39 of single-chip microcomputer 10 are connected, single-chip microcomputer 10 inside have data to read and display module, the data-out port 40 of single-chip microcomputer 10 is connected with the data communication port 41 of computing machine 11, such single-chip microcomputer 10 and computing machine 11 and connected and composed that temperature data is read and display system between them.
The measuring method of the temperature measuring equipment of the measurement bearing working temperature of present embodiment, step is as follows:
Step 1: initial phase, promptly give its initialization module of power management chip 4 electrifying startups, microprocessor MCU9 and speed switch 5 power supplies of initialization module drive output mouth 21 in temperature measurement controller 2 start, in addition default critical startup tachometer value on speed switch 5;
Step 2: the dormant stage, be i.e. call its low-power consumption module when microprocessor MCU9 power supply starts microprocessor 9 is placed low power consumpting state;
Step 3: start working the judgement stage, promptly when speed switch 5 does not receive the tach signal at bearing rotation position, continue the dormant stage, and receive the tach signal at bearing rotation position and during when speed switch 5 greater than its default critical startup tachometer value, speed switch 5 conductings are also sent to the enable port 28 of temperature measurement controller 2 by its output port 27 and to be interrupted the low power consumpting state signal, microprocessor MCU9 calls its collecting temperature data module subsequently, thereby withdraws from low power consumpting state;
Step 4: data acquisition phase, promptly call its collecting temperature data module by microprocessor MCU9, at first will start the instruction of temperature-sensing probe power supply sends to power management chip 4 through the control port 26 of temperature measurement controller 2 by the control port 48 of microprocessor MCU9 enable port 31, the output port 21 of power management chip 4 is by driving the power port 33 of temperature-sensing probe 1 thus, to temperature-sensing probe 1 power supply, temperature-sensing probe 1 is sent to by output port 22 the working temperature electric signal of bearing the input end 42 of signal amplification and filtering circuit 7 through the input port 23 of temperature measurement controller 2 by contact bearing rotation position, handle through the signal amplification and the amplification filtering of the working temperature electric signal of 7 pairs of these bearings of filtering circuit, working temperature electric signal after the processing amplifies the input end 44 that is sent to A/D change-over circuit 8 with the output terminal 43 of filtering circuit 7 through signal, this signal is carried out analog to digital conversion, the working temperature numerical data of the bearing after the conversion is sent to the input port 46 of microprocessor MCU9 by the output terminal 45 of A/D change-over circuit 8, microprocessor MCU9 calls the working temperature data that its temperature transition module obtains real-time bearing after with working temperature numerical data homogenizing thus, and these working temperature data are stored in the register of microprocessor MCU9, then the instruction of log-on data storage chip power supply is sent to the enable port 31 of power management chip 4 through the control port 26 of temperature measurement controller 2 by the control port 48 of microprocessor MCU9, the output port 21 of power management chip 4 is by the power port 35 of pin-saving chip 3 thus, to pin-saving chip 3 power supplies, the working temperature data of real-time subsequently bearing are sent to the input port 25 of pin-saving chip 3 through the output port 24 of temperature measurement controller 2 by the output port 47 of microprocessor MCU9, preserve by 3 pairs of these data of pin-saving chip, after preservation finishes, microprocessor MCU9 disposes these data in its register, and will close the instruction of pin-saving chip power supply sends to power management chip 4 through the control port 26 of temperature measurement controller 2 by the control port 48 of microprocessor MCU9 enable port 31, the output port 21 of power management chip 4 is by the power port 35 of pin-saving chip 3, with pin-saving chip 3 outages thus;
Step 5: in the time-delay stage, promptly microprocessor MCU9 calls the low-power consumption module and enters low power consumpting state, calls its time delay module subsequently, postpones to wait for that the time that continues is the sampling time interval of the timer setting of microprocessor MCU9 inside;
Step 6: measure and finish the judgement stage, be that microprocessor MCU9 calls and measure to finish judge module and check whether the data volume in the pin-saving chip 3 reaches the value of setting, if reach, show that gatherer process finishes, then forward step 7 to, if data volume does not reach preset value as yet, then forward step 4 cycling to;
Step 7: stop phase, promptly microprocessor MCU9 calls the low-power consumption module and enters low power consumpting state;
Step 8: data read stage, promptly behind the temperature survey end-of-job, start computing machine 11 and connect single-chip microcomputer 10, read with the data-out port 38 of display module driver module driving data storage chip 3 by the data of single-chip microcomputer 10 inside the bearing working temperature data that measures is sent to the data-in port 39 of single-chip microcomputer 10, the data-out port 40 by single-chip microcomputer 10 sends to the data communication port 41 of computing machine 11 with these data and is presented on the display screen of computing machine 11 again immediately.
Embodiment 2:
As Fig. 1, Fig. 2 and shown in Figure 3, measure the temperature measuring equipment of bearing working temperature, comprise and the contacted temperature-sensing probe 1 in bearing rotation position, the output port 22 of described temperature-sensing probe 1 is connected with the input port 23 of temperature measurement controller 2, described temperature measurement controller 2 is amplified and filtering circuit 7 by signal, A/D change-over circuit 8 and microprocessor MCU9 and connecting and composing between them, the input port 23 of temperature measurement controller 2 is connected with the input end 42 of filtering circuit 7 with its signal amplification, the signal amplification is connected with the output terminal 43 of filtering circuit 7 and the input end 44 of A/D change-over circuit 8, the output terminal 45 of A/D change-over circuit 8 is connected with the input port 46 of microprocessor MCU9, the output port 47 of microprocessor MCU9 is connected with the output port 24 of temperature measurement controller 2, the control port 48 of microprocessor MCU9 is connected with the control port 26 of temperature measurement controller 2, the enable port 49 of microprocessor MCU9 is connected with the enable port 28 of temperature measurement controller 2, the power port 50 of microprocessor MCU9 is connected with the power port 34 of temperature measurement controller 2, the low-power consumption module is arranged in the microprocessor MCU9, the collecting temperature data module, time delay module and measurement finish judge module, the output port 24 of temperature measurement controller 2 is connected with the input port 25 of pin-saving chip 3, the control port 26 of temperature measurement controller 2 is connected with the enable port 32 of the enable port 31 of power management chip 4 and pin-saving chip 3, in the power management chip 4 initialization module is arranged, the enable port 28 of temperature measurement controller 2 is connected with the output port 27 of speed switch 5, the rotating speed contact of speed switch 5 and the rotation position of bearing contact, the power port 34 of temperature measurement controller 2, the power port 33 of temperature-sensing probe 1, the power port 35 of pin-saving chip 3 and the power port 36 of speed switch 5 are connected with the output port 21 of power management chip 4, at power management chip 4, temperature measurement controller 2, fill such temperature-sensing probe 1 with thermal insulation material 6 between pin-saving chip 3 and the speed switch 5, temperature measurement controller 2, pin-saving chip 3, power management chip 4 and speed switch 5 and connected and composed thermometric and register system between them; The data-out port 38 of the pin-saving chip 3 in thermometric and the register system and the data-in port 39 of single-chip microcomputer 10 are connected, single-chip microcomputer 10 inside have data to read and display module, the data-out port 40 of single-chip microcomputer 10 is connected with the data communication port 41 of computing machine 11, such single-chip microcomputer 10 and computing machine 11 and connected and composed that temperature data is read and display system between them.
The measuring method of the temperature measuring equipment of the measurement bearing working temperature of present embodiment, step is as follows:
Step 1: initial phase, promptly give its initialization module of power management chip 4 electrifying startups, microprocessor MCU9 and speed switch 5 power supplies of initialization module drive output mouth 21 in temperature measurement controller 2 start, in addition default critical startup tachometer value on speed switch 5;
Step 2: the dormant stage, be i.e. call its low-power consumption module when microprocessor MCU9 power supply starts microprocessor 9 is placed low power consumpting state;
Step 3: start working the judgement stage, promptly when speed switch 5 does not receive the tach signal at bearing rotation position, continue the dormant stage, and receive the tach signal at bearing rotation position and during when speed switch 5 greater than its default critical startup tachometer value, speed switch 5 conductings are also sent to the enable port 28 of temperature measurement controller 2 by its output port 27 and to be interrupted the low power consumpting state signal, microprocessor MCU9 calls its collecting temperature data module subsequently, thereby withdraws from low power consumpting state;
Step 4: data acquisition phase, promptly call its collecting temperature data module by microprocessor MCU9, at first will start the instruction of temperature-sensing probe power supply sends to power management chip 4 through the control port 26 of temperature measurement controller 2 by the control port 48 of microprocessor MCU9 enable port 31, the output port 21 of power management chip 4 is by driving the power port 33 of temperature-sensing probe 1 thus, to temperature-sensing probe 1 power supply, temperature-sensing probe 1 is sent to by output port 22 the working temperature electric signal of bearing the input end 42 of signal amplification and filtering circuit 7 through the input port 23 of temperature measurement controller 2 by contact bearing rotation position, handle through the signal amplification and the amplification filtering of the working temperature electric signal of 7 pairs of these bearings of filtering circuit, working temperature electric signal after the processing amplifies the input end 44 that is sent to A/D change-over circuit 8 with the output terminal 43 of filtering circuit 7 through signal, this signal is carried out analog to digital conversion, the working temperature numerical data of the bearing after the conversion is sent to the input port 46 of microprocessor MCU9 by the output terminal 45 of A/D change-over circuit 8, microprocessor MCU9 calls the working temperature data that its temperature transition module obtains real-time bearing after with working temperature numerical data homogenizing thus, and these working temperature data are stored in the register of microprocessor MCU9, judge then whether this register is filled with, if register less than, change step 5 over to, if register is full, send to the enable port 31 of power management chip 4 through the control port 26 of temperature measurement controller 2 by the control port 48 of microprocessor MCU9 with regard to the instruction of log-on data storage chip power supply, the output port 21 of power management chip 4 is by the power port 35 of pin-saving chip 3 thus, to pin-saving chip 3 power supplies, the working temperature data of real-time subsequently bearing are sent to the input port 25 of pin-saving chip 3 through the output port 24 of temperature measurement controller 2 by the output port 47 of microprocessor MCU9, preserve by 3 pairs of these data of pin-saving chip, after preservation finishes, microprocessor MCU9 disposes these data in its register, and will close the instruction of pin-saving chip power supply sends to power management chip 4 through the control port 26 of temperature measurement controller 2 by the control port 48 of microprocessor MCU9 enable port 31, the output port 21 of power management chip 4 is by the power port 35 of pin-saving chip 3, with pin-saving chip 3 outages thus;
Step 5: in the time-delay stage, promptly microprocessor MCU9 calls the low-power consumption module and enters low power consumpting state, calls its time delay module subsequently, postpones to wait for that the time that continues is the sampling time interval of the timer setting of microprocessor MCU9 inside;
Step 6: measure and finish the judgement stage, be that microprocessor MCU9 calls and measure to finish judge module and check whether the data volume in the pin-saving chip 3 reaches the value of setting, if reach, show that gatherer process finishes, then forward step 7 to, if data volume does not reach preset value as yet, then forward step 4 cycling to;
Step 7: stop phase, promptly microprocessor MCU9 calls the low-power consumption module and enters low power consumpting state;
Step 8: data read stage, promptly behind the temperature survey end-of-job, start computing machine 11 and connect single-chip microcomputer 10, read with the data-out port 38 of display module driver module driving data storage chip 3 by the data of single-chip microcomputer 10 inside the bearing working temperature data that measures is sent to the data-in port 39 of single-chip microcomputer 10, the data-out port 40 by single-chip microcomputer 10 sends to the data communication port 41 of computing machine 11 with these data and is presented on the display screen of computing machine 11 again immediately.
Adopt embodiments of the invention 1 and embodiment 2, because contact temperature-measuring method with the contacted temperature-sensing probe 1 in bearing rotation position, and make thermometric accurate in conjunction with the method for amplification, filtering and the digitized processing bearing working signal of temperature measurement controller 2, and the shortcoming that the signal of radio communication disturbs can not appear; Simultaneously whole temperature measuring equipment circuit design is simple, make whole device be easy to install; Adopt the sub-unit power supply mode under the microprocessor MCU9 control in the measuring method, make the low in energy consumption of whole device; By the buffer action of thermal insulation material, this device can tolerate the condition of work of high temperature and big rotating speed, and can keep accurately measuring for a long time real-time bearing working temperature.
In addition, embodiment 2 and embodiment 1 compare, the advantage of embodiment 2 all writes data pin-saving chip 3 after being not to be to have gathered data at every turn, so economize on electricity more, be applicable to the occasion relatively more responsive to power consumption, but the control method complexity of its microprocessor MCU9 is higher to the capacity requirement of the storage space of microprocessor MCU9; And the advantage of embodiment 1 is that the control method of microprocessor MCU9 is simple, be applicable to power consumption insensitive, but the little occasion of the storage of microprocessor MCU9.
Claims (5)
1. the temperature measuring equipment of a bearing working temperature, comprise and the contacted temperature-sensing probe 1 in bearing rotation position, it is characterized in that: the output port (22) of described temperature-sensing probe (1) is connected with the input port (23) of temperature measurement controller (2), described temperature measurement controller (2) is amplified and filtering circuit (7) by signal, A/D change-over circuit (8) and microprocessor MCU (9) and connecting and composing between them, the input port (23) of temperature measurement controller (2) is connected with the input end (42) of filtering circuit (7) with its signal amplification, the signal amplification is connected with the output terminal (43) of filtering circuit (7) and the input end (44) of A/D change-over circuit (8), the output terminal (45) of A/D change-over circuit (8) and the input port (46) of microprocessor MCU (9) are connected, the output port (47) of microprocessor MCU (9) and the output port (24) of temperature measurement controller (2) are connected, the control port (48) of microprocessor MCU (9) and the control port (26) of temperature measurement controller (2) are connected, the enable port (49) of microprocessor MCU (9) and the enable port (28) of temperature measurement controller (2) are connected, the power port (50) of microprocessor MCU (9) and the power port (34) of temperature measurement controller (2) are connected, microprocessor MCU has the low-power consumption module in (9), the collecting temperature data module, time delay module and measurement finish judge module, the output port (24) of temperature measurement controller (2) is connected with the input port (25) of pin-saving chip (3), the control port (26) of temperature measurement controller (2) is connected with the enable port (32) of the enable port (31) of power management chip (4) and pin-saving chip (3), power management chip has initialization module in (4), the enable port (28) of temperature measurement controller (2) is connected with the output port (27) of speed switch (5), the rotating speed contact of speed switch (5) and the rotation position of bearing contact, the power port (34) of temperature measurement controller (2), the power port (33) of temperature-sensing probe (1), the power port (35) of pin-saving chip (3) and the power port (36) of speed switch (5) are connected with the output port (21) of power management chip (4), in power management chip (4), temperature measurement controller (2), fill such temperature-sensing probe (1) between pin-saving chip (3) and the speed switch (5) with thermal insulation material (6), temperature measurement controller (2), pin-saving chip (3), power management chip (4) and speed switch (5) and connected and composed thermometric and register system between them; The data-out port (38) of the pin-saving chip (3) in thermometric and the register system and the data-in port (39) of single-chip microcomputer (10) are connected, single-chip microcomputer (10) inside has data to read and display module, the data-out port (40) of single-chip microcomputer (10) and the data communication port (41) of computing machine (11) are connected, such single-chip microcomputer (10) and computing machine (11) and connected and composed that temperature data is read and display system between them.
2. a kind of temperature measuring equipment of measuring the bearing working temperature according to claim 1 is characterized in that: described speed switch (5) can replace with centrifugal switch.
3. a kind of temperature measuring equipment of measuring the bearing working temperature according to claim 1 is characterized in that: described power management chip 4 can replace with linear voltage regulator.
4. one kind is adopted the described temperature measuring equipment of claim 1 to measure the bearing method of temperature, it is characterized in that step is as follows:
Step 1: initial phase, promptly give its initialization module of power management chip (4) electrifying startup, microprocessor MCU (9) and speed switch (5) power supply of initialization module drive output mouth (21) in temperature measurement controller (2) starts, and goes up default critical startup tachometer value at speed switch (5) in addition;
Step 2: the dormant stage, be i.e. call its low-power consumption module when microprocessor MCU (9) power supply starts microprocessor (9) is placed low power consumpting state;
Step 3: start working the judgement stage, promptly when speed switch (5) does not receive the tach signal at bearing rotation position, continue the dormant stage, and receive the tach signal at bearing rotation position and during when speed switch (5) greater than its default critical startup tachometer value, speed switch (5) conducting is also sent to the enable port (28) of temperature measurement controller 2 by its output port (27) and is interrupted the low power consumpting state signal, microprocessor MCU (9) calls its collecting temperature data module subsequently, thereby withdraws from low power consumpting state;
Step 4: data acquisition phase, promptly call its collecting temperature data module by microprocessor MCU (9), at first will start the instruction of temperature-sensing probe power supply sends to power management chip (4) by the control port (26) of control port (48) through temperature measurement controller (2) of microprocessor MCU (9) enable port (31), the output port (21) of power management chip (4) is by driving the power port (33) of temperature-sensing probe (1) thus, power to temperature-sensing probe (1), temperature-sensing probe (1) is sent to the working temperature electric signal of bearing the input end (42) of signal amplification and filtering circuit (7) by the input port (23) of output port (22) through temperature measurement controller (2) by contact bearing rotation position, amplify and the amplification filtering processing of filtering circuit (7) through signal the working temperature electric signal of this bearing, working temperature electric signal after the processing amplifies the input end (44) that is sent to A/D change-over circuit (8) with the output terminal (43) of filtering circuit (7) through signal, this signal is carried out analog to digital conversion, the working temperature numerical data of the bearing after the conversion is sent to the input port (46) of microprocessor MCU9 by the output terminal (45) of A/D change-over circuit (8), microprocessor MCU (9) calls the working temperature data that its temperature transition module obtains real-time bearing after with working temperature numerical data homogenizing thus, and these working temperature data are stored in the register of microprocessor MCU (9), then the instruction of log-on data storage chip power supply is sent to the enable port (31) of power management chip (4) by the control port (26) of control port (48) through temperature measurement controller (2) of microprocessor MCU (9), the output port (21) of power management chip (4) is by the power port (35) of pin-saving chip (3) thus, power to pin-saving chip (3), the working temperature data of real-time subsequently bearing are sent to the input port (25) of pin-saving chip (3) through the output port (24) of temperature measurement controller 2 by the output port (47) of microprocessor MCU (9), by pin-saving chip (3) these data are preserved, after preservation finishes, microprocessor MCU (9) disposes these data in its register, and will close the instruction of pin-saving chip power supply sends to power management chip (4) by the control port (26) of control port (48) through temperature measurement controller (2) of microprocessor MCU (9) enable port (31), the output port (21) of power management chip (4) cuts off the power supply pin-saving chip (3) by the power port (35) of pin-saving chip (3) thus;
Step 5: in the time-delay stage, promptly microprocessor MCU (9) calls the low-power consumption module and enters low power consumpting state, calls its time delay module subsequently, postpones to wait for that the time that continues is the sampling time interval that the inner timer of microprocessor MCU (9) is set;
Step 6: measure and finish the judgement stage, be that microprocessor MCU (9) calls and measure to finish judge module and check whether the data volume in the pin-saving chip (3) reaches the value of setting, if reach, show that gatherer process finishes, then forward step (7) to, if data volume does not reach preset value as yet, then forward step (4) cycling to;
Step 7: stop phase, promptly microprocessor MCU (9) calls the low-power consumption module and enters low power consumpting state;
Step 8: data read stage, promptly behind the temperature survey end-of-job, start computing machine (11) and connect single-chip microcomputer (10), read with the data-out port (38) of display module driver module driving data storage chip (3) by the inner data of single-chip microcomputer (10) the bearing working temperature data that measures is sent to the data-in port (39) of single-chip microcomputer (10), the data-out port (40) by single-chip microcomputer (10) sends to the data communication port (41) of computing machine (11) with these data and is presented on the display screen of computing machine (11) again immediately.
5. one kind is adopted the described temperature measuring equipment of claim 1 to measure the bearing method of temperature, it is characterized in that step is as follows:
Step 1: initial phase, promptly give its initialization module of power management chip (4) electrifying startup, microprocessor MCU (9) and speed switch (5) power supply of initialization module drive output mouth (21) in temperature measurement controller (2) starts, in addition default critical startup tachometer value on speed switch 5;
Step 2: the dormant stage, be i.e. call its low-power consumption module when microprocessor MCU (9) power supply starts microprocessor (9) is placed low power consumpting state;
Step 3: start working the judgement stage, promptly when speed switch (5) does not receive the tach signal at bearing rotation position, continue the dormant stage, and receive the tach signal at bearing rotation position and during when speed switch (5) greater than its default critical startup tachometer value, speed switch (5) conducting is also sent to the enable port (28) of temperature measurement controller 2 by its output port (27) and is interrupted the low power consumpting state signal, microprocessor MCU (9) calls its collecting temperature data module subsequently, thereby withdraws from low power consumpting state;
Step 4: data acquisition phase, promptly call its collecting temperature data module by microprocessor MCU (9), at first will start the instruction of temperature-sensing probe power supply sends to power management chip (4) by the control port (26) of control port (48) through temperature measurement controller (2) of microprocessor MCU (9) enable port (31), the output port (21) of power management chip (4) is by driving the power port (33) of temperature-sensing probe (1) thus, power to temperature-sensing probe (1), temperature-sensing probe (1) is sent to the working temperature electric signal of bearing the input end (42) of signal amplification and filtering circuit (7) by the input port (23) of output port (22) through temperature measurement controller (2) by contact bearing rotation position, amplify and the amplification filtering processing of filtering circuit (7) through signal the working temperature electric signal of this bearing, working temperature electric signal after the processing amplifies the input end (44) that is sent to A/D change-over circuit (8) with the output terminal (43) of filtering circuit (7) through signal, this signal is carried out analog to digital conversion, the working temperature numerical data of the bearing after the conversion is sent to the input port (46) of microprocessor MCU9 by the output terminal 45 of A/D change-over circuit 8, microprocessor MCU (9) calls the working temperature data that its temperature transition module obtains real-time bearing after with working temperature numerical data homogenizing thus, and these working temperature data are stored in the register of microprocessor MCU (9), judge then whether this register is filled with, if register less than, change step 5 over to, if register is full, send to the enable port (31) of power management chip (4) by the control port (26) of control port (48) through temperature measurement controller (2) of microprocessor MCU (9) with regard to the instruction of log-on data storage chip power supply, the output port (21) of power management chip (4) is by the power port (35) of pin-saving chip (3) thus, power to pin-saving chip (3), the working temperature data of real-time subsequently bearing are sent to the input port (25) of pin-saving chip (3) through the output port (24) of temperature measurement controller 2 by the output port (47) of microprocessor MCU (9), by pin-saving chip (3) these data are preserved, after preservation finishes, microprocessor MCU (9) disposes these data in its register, and will close the instruction of pin-saving chip power supply sends to power management chip (4) by the control port (26) of control port (48) through temperature measurement controller (2) of microprocessor MCU (9) enable port (31), the output port (21) of power management chip (4) cuts off the power supply pin-saving chip (3) by the power port (35) of pin-saving chip (3) thus;
Step 5: in the time-delay stage, promptly microprocessor MCU (9) calls the low-power consumption module and enters low power consumpting state, calls its time delay module subsequently, postpones to wait for that the time that continues is the sampling time interval that the inner timer of microprocessor MCU (9) is set;
Step 6: measure and finish the judgement stage, be that microprocessor MCU (9) calls and measure to finish judge module and check whether the data volume in the pin-saving chip (3) reaches the value of setting, if reach, show that gatherer process finishes, then forward step (7) to, if data volume does not reach preset value as yet, then forward step (4) cycling to;
Step 7: stop phase, promptly microprocessor MCU (9) calls the low-power consumption module and enters low power consumpting state;
Step 8: data read stage, promptly behind the temperature survey end-of-job, start computing machine (11) and connect single-chip microcomputer (10), read with the data-out port (38) of display module driver module driving data storage chip (3) by the inner data of single-chip microcomputer (10) the bearing working temperature data that measures is sent to the data-in port (39) of single-chip microcomputer (10), the data-out port (40) by single-chip microcomputer (10) sends to the data communication port (41) of computing machine (11) with these data and is presented on the display screen of computing machine (11) again immediately.
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| CN 201010176292 CN101852653B (en) | 2010-05-18 | 2010-05-18 | Device and method for measuring working temperature of bearing |
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| CN 201010176292 CN101852653B (en) | 2010-05-18 | 2010-05-18 | Device and method for measuring working temperature of bearing |
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| CN101852653B CN101852653B (en) | 2013-01-02 |
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| CN 201010176292 Expired - Fee Related CN101852653B (en) | 2010-05-18 | 2010-05-18 | Device and method for measuring working temperature of bearing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103332206A (en) * | 2013-06-27 | 2013-10-02 | 南车四方车辆有限公司 | Motor car and temperature-measuring mapping instrument for bearing of motor car |
| CN104515744A (en) * | 2014-04-30 | 2015-04-15 | 北京奥斐德石油技术有限公司 | Infrared total hydrocarbon identification system |
| CN107885255A (en) * | 2017-11-09 | 2018-04-06 | 苏州欧弗贝传动科技有限公司 | A kind of hydrodynamic sliding bearing temperature control system |
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| CN1687723A (en) * | 2005-05-08 | 2005-10-26 | 陈志成 | New type sensor for measuring temperature of bearing |
| EP1152233B1 (en) * | 2000-05-03 | 2007-04-11 | Skf Mekan Ab | Temperature monitoring device |
| 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 |
| JP2007292155A (en) * | 2006-04-24 | 2007-11-08 | Nsk Ltd | Bearing with temperature notifying function |
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| EP1152233B1 (en) * | 2000-05-03 | 2007-04-11 | Skf Mekan Ab | Temperature monitoring device |
| CN1687723A (en) * | 2005-05-08 | 2005-10-26 | 陈志成 | New type sensor for measuring temperature of bearing |
| JP2007292155A (en) * | 2006-04-24 | 2007-11-08 | Nsk Ltd | Bearing with temperature notifying function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103332206A (en) * | 2013-06-27 | 2013-10-02 | 南车四方车辆有限公司 | Motor car and temperature-measuring mapping instrument for bearing of motor car |
| CN104515744A (en) * | 2014-04-30 | 2015-04-15 | 北京奥斐德石油技术有限公司 | Infrared total hydrocarbon identification system |
| CN104515744B (en) * | 2014-04-30 | 2017-06-23 | 北京奥斐德石油技术有限公司 | Infrared total hydrocarbon identification systems |
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