CN102224779A - Shaft temperature alarm of combine harvester - Google Patents
Shaft temperature alarm of combine harvester Download PDFInfo
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- CN102224779A CN102224779A CN2011101603799A CN201110160379A CN102224779A CN 102224779 A CN102224779 A CN 102224779A CN 2011101603799 A CN2011101603799 A CN 2011101603799A CN 201110160379 A CN201110160379 A CN 201110160379A CN 102224779 A CN102224779 A CN 102224779A
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- chip microcomputer
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- axle temperature
- temperature
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Abstract
The invention discloses a shaft temperature alarm of a combine harvester, and the shaft temperature alarm comprises a shaft temperature monitoring module, a singlechip processing unit, an alarm display module and a power source module, wherein the shaft temperature monitoring module is connected with the alarm display module through the singlechip processing unit; and the power source module is respectively connected with the shaft temperature monitoring module and the singlechip processing unit. The shaft temperature alarm can be arranged in the cab of the harvester; and a shaft temperature sensor is arranged on the important rotational shaft components of the harvester. By utilizing the device, the shaft temperature of the harvester can be monitored in real time; and when the temperature is excessively high, the acoustooptic alarm can be sent out to prompt a locomotive operator to perform corresponding adjustment, thus preventing the fault damage from occurring further. The shaft temperature alarm provided by the invention has the advantages of simple structure, practical function and capabilities of providing explicit locomotive working condition information and improving the service life of a locomotive.
Description
Technical field
The present invention relates to a kind of alarm, especially relate to a kind of combine axle temperature annunciator.
Background technology
The critical component that bearing all has as harvester threshing cylinder, rethresher, seed elevator, cleaning fan, normal operation has very important effect to grain header for it.
Fault statistics showed in the past, though bearing fault shared ratio in the various faults of grain header is not very big, under the situation that some other inertial defect ratio reduces year by year, the ratio of bearing fault does not but reduce.Owing to there is not special equipment that the operation conditions of bearing is detected, prediction takes place to be difficult in its fault, and is bigger to the locomotive threat, in case take place to cause easily machine broken.But be not when bearing breaks down suddenly once will scaling loss dead admittedly, its temperature is along with the expansion of bearing fault has a process that progressively rises, if take adequate measures bearing temperature is carried out successional monitoring, can prevent the further expansion of bearing fault so fully, avoid the broken generation of machine.
The existing railway shaft temperature monitoring system of China has two classes at present: a kind of is to be placed in ground infrared axle temperature instrument, it utilizes the infrared probe that is installed in the circuit both sides, survey temperature, send Computer Processing with monitoring result, and reach the purpose of warning by the train spindle nose; Another kind is a widely used vehicle axle temperature alarm on the present vehicle, and it adopts the PN junction sensor, is equipped with constant-current source, changes according to voltage change reflection axle temperature at the secondary meter end.But on the grain header that these two kinds obviously can not well adapt to online assignment, and probe suffers extraneous destruction easily in first kind of axle temperature detection mode, needs a large amount of staff that the probe of installing is safeguarded the cost height; Second kind of monitoring alarm has shortcomings such as error greatly, easily wears out.In addition, pause in U.S. Berlin, and northern railway began in 1989 to test and installation sound equipment hot shaft detection system.The voice signal of wheel and axletree is sent to microprocessor by being located at the other detector that is similar to microphone, send the frequency characteristic of the sound by identification wheel and axletree and can determine wheel and axletree speed, thereby analyze the temperature of shaft.There is same shortcoming in this mode with infrared detection of hot axis system, suffers extraneous destruction easily, needs a large amount of staff that the probe of installing is safeguarded the cost height.The research that is used for the combine bearing temperature monitoring is in space state always, so the grain header failure problems that axle temperature causes also never well solves.
The blank of necessity that comprehensive above grain header axle temperature problem solves and this respect research is at present considered, be necessary to develop a kind of simple and reliable system that in time the grain header axle temperature is monitored automatically and reported to the police, allow it can monitor each temperature of grain header automatically, and can be to alarm driver.
Summary of the invention
The object of the present invention is to provide a kind of combine axle temperature annunciator, remedy on the market blank, solve the problem of the grain header fault that the puzzlement locomotive operator causes owing to axle temperature is too high about combine axle temperature Study on Problems technology.
The technical solution used in the present invention is:
The present invention includes bearing temperature monitoring module, single-chip microcomputer processing unit, alarm indication module and power module; Wherein the bearing temperature monitoring module is connected with the alarm indication module by the single-chip microcomputer processing unit, and power module is connected with the single-chip microcomputer processing unit with the bearing temperature monitoring module respectively.
Described bearing temperature monitoring module comprises axle temperature signal conditioning circuit and axle temperature signaling conversion circuit; The axle temperature signal conditioning circuit is made up of the identical Acquisition Circuit of eight line structures, and each road shaft temperature sensor is installed in respectively on the rotating shaft front and back bearings of combined harvester threshing cylinder, rethresher, seed elevator and cleaning fan; The axle temperature signal conditioning circuit links to each other with the single-chip microcomputer processing unit through the axle temperature signaling conversion circuit; 5V in the axle temperature signal conditioning circuit and ± 12V voltage provides by power module.
Described single-chip microcomputer processing unit: adopt the AT89S5X series monolithic, provide 5V supply voltage by power module; Single-chip microcomputer links to each other with the axle temperature signaling conversion circuit with peripheral circuit by latch 74HC373N; By the P1.0-P1.7 of single-chip microcomputer, the P2.0 mouth links to each other with the alarm indication module.
Described alarm indication module is made up of eight groups of LED display circuits and a buzzer alarm circuit, the P1.0-P1.7 of this module, and the P2.0 mouth links to each other with the single-chip microcomputer processing unit.
The 24V voltage transitions that described power module provides combine become 5V and ± 12V voltage, link to each other with the single-chip microcomputer processing unit with the bearing temperature monitoring module respectively.
The beneficial effect that the present invention has is:
The present invention can be installed in the grain header driver's cabin, its shaft temperature sensor is installed on these important rotating axis components of grain header, this device can be monitored the grain header axle temperature in real time, when its temperature is too high, have sounding and lighting alarm, the prompting locomotive operator is adjusted accordingly, avoids taking place further fault and damages.The present invention is simple in structure, and the function practicality provides clear and definite locomotive work condition information, has improved locomotive service life.
Description of drawings
Fig. 1 is the structured flowchart of circuit of the present invention.
Fig. 2 is one tunnel Acquisition Circuit figure of axle temperature signal conditioning circuit of the present invention.
Fig. 3 is the signaling conversion circuit and the single-chip microcomputer processing unit circuit diagram of bearing temperature monitoring module of the present invention.
Fig. 4 is an alarm indication module circuit diagram of the present invention.
Fig. 5 is power module circuitry figure of the present invention.
Embodiment
Below in conjunction with drawings and Examples the present invention is made further instructions.
As shown in Figure 1, the present invention includes bearing temperature monitoring module, single-chip microcomputer processing unit, alarm indication module and power module; Wherein the bearing temperature monitoring module is connected with the alarm indication module by the single-chip microcomputer processing unit, and power module is connected with the single-chip microcomputer processing unit with the bearing temperature monitoring module respectively.
As Fig. 2, shown in Figure 3, described bearing temperature monitoring module comprises axle temperature signal conditioning circuit and axle temperature signaling conversion circuit; The axle temperature signal conditioning circuit is made up of the identical Acquisition Circuit of eight line structures, and each road shaft temperature sensor is installed in respectively on the rotating shaft front and back bearings of combined harvester threshing cylinder, rethresher, seed elevator and cleaning fan; Shaft temperature sensor is that a kind of thermistor of negative temperature coefficient is formed, the Acquisition Circuit collection and by the amplifier two-stage amplify will be faint warm power transformation hinder signal condition and become the discernible voltage signal of single-chip microcomputer; Axle temperature signal conditioning circuit ADC0809 converter in the axle temperature signaling conversion circuit becomes data signal with the 74HC373N latch with analog signal conversion, link to each other with the single-chip microcomputer processing unit then, the 5V in the axle temperature signal conditioning circuit and ± 12V voltage provides by power module.
As shown in Figure 3, described single-chip microcomputer processing unit: adopt the AT89S5X series monolithic, the present invention adopts the AT89S52 single-chip microcomputer, provides 5V supply voltage by power module; Single-chip microcomputer links to each other with the axle temperature signaling conversion circuit with peripheral circuit by latch 74HC373N; P1.0-P1.7 by single-chip microcomputer, the P2.0 mouth links to each other with the alarm indication module, and single-chip microcomputer receives 8 road axle temperature signals from the grain header rotating axis component, handles through internal judgment, ring by buzzer when axle temperature transfinite and LED lights warning, prompting driver parking checking is made corresponding adjustment.
As shown in Figure 4, the alarm indication module is made up of eight groups of LED display circuits and a buzzer alarm circuit, and wherein the LED display circuit links to each other with single-chip microcomputer P1.0-P1.7 mouth, and buzzer alarm circuit links to each other with single-chip microcomputer P2.0 mouth.
As shown in Figure 5, described power module converts the 24V voltage that combine provides to 5V voltage by LM2574T5.0 chip and peripheral circuit, convert to two kinds of different peripheral circuits ± two kinds of voltages of 12V electricity by the LM2574T12 chip, power module directly links to each other with the single-chip microcomputer processing unit with the bearing temperature monitoring module, is bearing temperature monitoring module and the power supply of single-chip microcomputer processing unit.
Operation principle of the present invention:
When combine begins operation in the field, each workpiece entry into service of grain header, apparatus of the present invention are also switched on and are started working, be installed in the harvester threshing cylinder, rethresher, the seed elevator, the shaft temperature sensor of cleaning fan is delivered to the single-chip microcomputer processing unit with eight road axle temperature signals in real time, carrying out axle temperature by single piece clip processing unit internal algorithm judges, when one the tunnel or multichannel rotating shaft temperature rise is too high or temperature is crossed in limited time, the single-chip microcomputer processing unit will send signal and give the sounding and lighting alarm module, and locomotive operator can be heard the sound of buzzer warning and see that the corresponding component malfunction indicator lamp is glittering this moment.The operator can check corresponding component according to prompting like this, to avoid because the axle temperature temperature rise is too fast or the generation of crossing the further fault that limit causes.
Claims (5)
1. a combine axle temperature annunciator is characterized in that: comprise bearing temperature monitoring module, single-chip microcomputer processing unit, alarm indication module and power module; Wherein the bearing temperature monitoring module is connected with the alarm indication module by the single-chip microcomputer processing unit, and power module is connected with the single-chip microcomputer processing unit with the bearing temperature monitoring module respectively.
2. according to a kind of combine axle temperature annunciator described in the claim 1, it is characterized in that: described bearing temperature monitoring module comprises axle temperature signal conditioning circuit and axle temperature signaling conversion circuit; The axle temperature signal conditioning circuit is made up of the identical Acquisition Circuit of eight line structures, and each road shaft temperature sensor is installed in respectively on the rotating shaft front and back bearings of combined harvester threshing cylinder, rethresher, seed elevator and cleaning fan; The axle temperature signal conditioning circuit links to each other with the single-chip microcomputer processing unit through the axle temperature signaling conversion circuit; 5V in the axle temperature signal conditioning circuit and ± 12V voltage provides by power module.
3. according to a kind of combine axle temperature annunciator described in the claim 1, it is characterized in that: described single-chip microcomputer processing unit: adopt the AT89S5X series monolithic, provide 5V supply voltage by power module; Single-chip microcomputer links to each other with the axle temperature signaling conversion circuit with peripheral circuit by latch 74HC373N; By the P1.0-P1.7 of single-chip microcomputer, the P2.0 mouth links to each other with the alarm indication module.
4. according to a kind of combine axle temperature annunciator described in the claim 1, it is characterized in that: described alarm indication module is made up of eight groups of LED display circuits and a buzzer alarm circuit, the P1.0-P1.7 of this module, the P2.0 mouth links to each other with the single-chip microcomputer processing unit.
5. according to a kind of combine axle temperature annunciator described in the claim 1, it is characterized in that: the 24V voltage transitions that described power module provides combine become 5V and ± 12V voltage, link to each other with the single-chip microcomputer processing unit with the bearing temperature monitoring module respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101603799A CN102224779A (en) | 2011-06-15 | 2011-06-15 | Shaft temperature alarm of combine harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101603799A CN102224779A (en) | 2011-06-15 | 2011-06-15 | Shaft temperature alarm of combine harvester |
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| Publication Number | Publication Date |
|---|---|
| CN102224779A true CN102224779A (en) | 2011-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101603799A Pending CN102224779A (en) | 2011-06-15 | 2011-06-15 | Shaft temperature alarm of combine harvester |
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| CN (1) | CN102224779A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114020070A (en) * | 2021-10-15 | 2022-02-08 | 北京航天控制仪器研究所 | Temperature control system for compatible two-type inertial platform |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6286992B1 (en) * | 1999-02-12 | 2001-09-11 | Meritor Heavy Vehicle Systems, Llc | Axle temperature monitor |
| CN2743798Y (en) * | 2004-11-02 | 2005-11-30 | 王文坡 | Intelligent combined meter for agricultural machinery |
| EP1688029A1 (en) * | 2005-02-04 | 2006-08-09 | CNH Belgium N.V. | Active combine rotor deceleration. |
| CN101595785A (en) * | 2009-06-23 | 2009-12-09 | 江苏大学 | Combined harvester plugging fault early warning and warning device |
| CN201368985Y (en) * | 2008-08-22 | 2009-12-23 | 江苏大学 | Fault diagnosis device for electrical system of combined harvester |
| CN201504416U (en) * | 2009-09-15 | 2010-06-16 | 江苏大学 | Load feedback automatic control device of combine harvester |
| CN102032277A (en) * | 2010-11-19 | 2011-04-27 | 上海师范大学 | Temperature-based automatic bearing lubrication method and related device |
| CN202135499U (en) * | 2011-06-15 | 2012-02-08 | 浙江大学 | Combine harvester axle temperature alarm |
-
2011
- 2011-06-15 CN CN2011101603799A patent/CN102224779A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6286992B1 (en) * | 1999-02-12 | 2001-09-11 | Meritor Heavy Vehicle Systems, Llc | Axle temperature monitor |
| CN2743798Y (en) * | 2004-11-02 | 2005-11-30 | 王文坡 | Intelligent combined meter for agricultural machinery |
| EP1688029A1 (en) * | 2005-02-04 | 2006-08-09 | CNH Belgium N.V. | Active combine rotor deceleration. |
| CN201368985Y (en) * | 2008-08-22 | 2009-12-23 | 江苏大学 | Fault diagnosis device for electrical system of combined harvester |
| CN101595785A (en) * | 2009-06-23 | 2009-12-09 | 江苏大学 | Combined harvester plugging fault early warning and warning device |
| CN201504416U (en) * | 2009-09-15 | 2010-06-16 | 江苏大学 | Load feedback automatic control device of combine harvester |
| CN102032277A (en) * | 2010-11-19 | 2011-04-27 | 上海师范大学 | Temperature-based automatic bearing lubrication method and related device |
| CN202135499U (en) * | 2011-06-15 | 2012-02-08 | 浙江大学 | Combine harvester axle temperature alarm |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114020070A (en) * | 2021-10-15 | 2022-02-08 | 北京航天控制仪器研究所 | Temperature control system for compatible two-type inertial platform |
| CN114020070B (en) * | 2021-10-15 | 2023-03-31 | 北京航天控制仪器研究所 | Temperature control system for compatible two-type inertial platform |
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Application publication date: 20111026 |