CN102360022A - Shaft speed detection device - Google Patents
Shaft speed detection device Download PDFInfo
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- CN102360022A CN102360022A CN2011101625533A CN201110162553A CN102360022A CN 102360022 A CN102360022 A CN 102360022A CN 2011101625533 A CN2011101625533 A CN 2011101625533A CN 201110162553 A CN201110162553 A CN 201110162553A CN 102360022 A CN102360022 A CN 102360022A
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- infraluminescence
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Abstract
The invention discloses a shaft speed detection device, which comprises an infrared luminous part and an infrared detection counting part, wherein the infrared luminous part comprises at least one infrared luminous head; the infrared luminous head is arranged on the lateral surface of a bearing; the infrared detection counting part comprises infrared detection heads with the number corresponding to that of the infrared luminous heads, a counter, a microprogrammed control unit (MCU) and a display device; the input end of the counter is connected with the output ends of the infrared detection heads, and the counter is used for counting the received infrared light times and sending a counting result to the MCU; and an input port of the MCU is connected with an output port of the counter, and the MCU is used for receiving a counting value of the counter and driving the display device to display the counting value. In the invention, due to the adoption of an infrared probe which has long service life and a mature technology, the friction of mechanical elastic contact parts is avoided, so that detection parts are not needed to be replaced frequently; therefore, the device has low using cost and high detection accuracy.
Description
Technical field
The present invention relates to speed detector, especially a kind of device that utilizes infrared technique that axle speed is detected.
Background technology
In technical fields such as some machineries, traffic, engine, lathes, as if the numerical value of the rotating speed of parts need be controlled in the equipment.When loseing rotation and can cause that parts or other lose the damage of equipment when too fast in the equipment, rotating speed is crossed and has been satisfied not the needs of equipment when slow.
On some meticulous equipment, such as numerically-controlled machine, generally all be that requirement is accurately machined at the part of processing, these numerically-controlled machines are to need accurately to control to the rotating speed of processing axle, and axle is just accurately controlled and need the rotating speed of axle be detected accurately.Also having some equipment that test the speed, such as the measurement of the speed of a motor vehicle, also is to calculate by the rotating speed that detects axletree.
More existing speed detector is mechanical bullet to be set touch parts between bearing and bearing seat, through elastomeric element flip-flop number device the rotating speed of bearing carried out rotating speed and detects.It is very big that this mechanical bullet touches component wear, needs often to change this mechanical bullet and touch parts, causes manufacturing and working service cost than higher; Owing to wear and tear, also can reduce the precision of detection.
Summary of the invention
The purpose of this invention is to provide a kind of speed detector, utilize infrared counting, through calculating the number of times reference axis speed of the infrared light that in official hour, receives.
In order to reach following purpose, the present invention adopts following technical scheme:
A kind of speed detector comprises infraluminescence part and infrared detection segment count, and infraluminescence partly comprises at least one infraluminescence head, and said infraluminescence head places the bearing side surface; The infrared detection segment count comprises and infrared detection head, the counter of infraluminescence head respective amount, also comprises a MCU, a display device, the corresponding setting with the infraluminescence head of infrared probe; The input end of counter is connected with the output terminal of infrared detection head, the infrared light number of times that receives is counted, and count results is delivered to MCU; The input port of MCU is connected with the output port of counter, the count value of count pick up device, and drive display device demonstration count value.
In the technical scheme of the present invention, the number of said infraluminescence head is 2～4.As preferably, said infrared light light head is for being preferably 2.
In the technical scheme of the present invention, said MCU includes but not limited to any of single-chip microcomputer, FPGA, DSP, application-specific integrated circuit.
In the technical scheme of the present invention, said restraint device includes but not limited to any display device in seven segment numerical tube display device, light-emitting diode display, the LCD.
In the technical scheme of the present invention, as preferably, also comprise timer, the output terminal of said timer is connected with the clear terminal of counter, in the timing of the regulation count value zero clearing with counter when satisfying.The output terminal of said timer is connected with the input end of MCU.
Useful technique effect of the present invention: the present invention does not use mechanical bullet to touch parts, but be employed on the axle to be measured the infraluminescence part is set, and is provided with the infrared detection segment count; The infraluminescence head of infraluminescence part is arranged on the lateral surface of axle to be measured; Just make technological device counting later on once with the infrared detection head of the corresponding setting of infraluminescence head at each infrared light that detects, MCU accepts the count value reference axis rotating speed of counter and drives display device to show the axle rotating speed that calculates.Because do not have the wearing and tearing of machinery, the serviceable life of infrared device is long again, the infrared detection technology comparative maturity, so the working service cost is lower, detection efficiency and accuracy are than higher.
Description of drawings
The present invention will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the schematic diagram of the embodiment one of axle speed detector of the present invention.
Fig. 2 is the schematic diagram of the embodiment two of axle speed detector of the present invention.
Fig. 3 is the schematic diagram of the embodiment three of axle speed detector of the present invention.
Description of reference numerals among the figure: 110,210,310 is the infraluminescence head, and 121,221,321 is infrared detection head, and 122,222,322 is counter, and 120,220,320 is MCU, and 124,224,324 is display device, and 223,323 is timer.
Embodiment
Disclosed all characteristics in this instructions, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this instructions (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
Before embodiment is elaborated; Reference numeral in figure below is described earlier: 110,210,310 is the infraluminescence head; 121,221,321 is infrared detection head, and 122,222,322 is counter, and 120,220,320 is MCU; 124,224,324 is display device, and 223,323 is timer.
Embodiment one
Like Fig. 1, be the schematic diagram of an embodiment of a kind of speed detector of the present invention.A kind of speed detector comprises infraluminescence part and infrared detection segment count, and infraluminescence partly comprises at least one infraluminescence head, and said infraluminescence head places the bearing side surface; The infrared detection segment count comprises and infrared detection head, the counter of infraluminescence head respective amount, also comprises a MCU, a display device, the corresponding setting with the infraluminescence head of infrared probe; The input end of counter is connected with the output terminal of infrared detection head, the infrared light number of times that receives is counted, and count results is delivered to MCU; The input port of MCU is connected with the output port of counter, the count value of count pick up device, and drive display device demonstration count value.
In the technical scheme of the present invention, the number of said infraluminescence head is 2～4.As preferably, said infrared light light head is for being preferably 2.Be that example is explained with 2 infraluminescence heads in the present embodiment, think correspondingly that infrared detection technology partly comprises 2 infrared detection heads and two counters.The infraluminescence head is arranged on the side outside of bearing, follows the rotation of bearing and rotates; With the corresponding infrared detection head of infraluminescence head and the residing Plane of rotation of infraluminescence head over against parallel.In the axle rotation process, the infraluminescence head rotates with axle, the moving circle of axle revolution, and infrared detection head just can be pounced on and grasp once, do not pounce on to grasp and once represent axle to rotate a circle, thereby flip-flop number adds 1.It is the accuracies that guarantee detection that two or more infrared probes are set.After UCU receives the count value of counter,, and drive a display device demonstration axle tachometer value through the rotating speed of the count value reference axis in certain time period.Adopting two or more infrared detection heads, is the accuracy in order to guarantee to survey, MCU to the two-way that receives or more the count value of multichannel carry out mean value computation, to obtain tachometer value more accurately.
Embodiment two
Fig. 2 is the schematic diagram of another embodiment of a kind of speed detector of the present invention.Be to add a timer at embodiment one technical, timer is connected with the clear terminal of counter with output terminal, and the timing time segment value of timer is set; When timing satisfies condition; Send clear command to counter, the technical value zero clearing of this hour counter counts from zero.Like this; Just can the time MCU receive the value of timer settings in the time period averaged calculating; Obtain the tachometer value in the time period, can reduce the performance requirement of MCU, adopt a common single-chip microcomputer can accomplish the evaluation work that axle speed detects; Therefore can reduce cost, circuit structure is also fairly simple.
Embodiment three
Fig. 3 is the schematic diagram of another embodiment of a kind of speed detector of the present invention.Be on the embodiment basis, do nearly one the step improvement.The output signal of timer is connected to MCU simultaneously; The count pick up device zero clearing Na Kede value of when receiving the signal of timer, setting out; Be in off-design point at ordinary times, a step has been reduced MCU to performance demands so nearby, can adopt the function of common chip microcontroller MCU; And computational algorithm is simple, and circuit structure is also simple.
In above-mentioned three embodiment of the present invention, said MCU includes but not limited to any of single-chip microcomputer, FPGA, DSP, application-specific integrated circuit.
In above-mentioned three embodiment of the present invention, said restraint device includes but not limited to any display device in seven segment numerical tube display device, light-emitting diode display, the LCD.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (7)
1. an axle speed detector is characterized in that, comprises infraluminescence part and infrared detection segment count,
Infraluminescence partly comprises at least one infraluminescence head, and said infraluminescence head places the bearing side surface;
The infrared detection segment count comprises and infrared detection head, the counter of infraluminescence head respective amount, also comprises a MCU, a display device, wherein
The corresponding setting of infrared probe with the infraluminescence head,
The input end of counter is connected with the output terminal of infrared detection head, and the infrared light number of times that receives is counted, and count results is delivered to MCU,
The input port of MCU is connected with the output port of counter, the count value of count pick up device, and drive display device demonstration count value.
2. axle speed detector according to claim 1 is characterized in that the number of said infraluminescence head is 2～4.
3. axle speed detector according to claim 2 is characterized in that said infrared light light head is 2.
4. according to claim 1,2 or 3 described speed detectors, it is characterized in that said MCU includes but not limited to any of single-chip microcomputer, FPGA, DSP, application-specific integrated circuit.
5. according to claim 1,2 or 3 described speed detectors, it is characterized in that said restraint device includes but not limited to any display device in seven segment numerical tube display device, light-emitting diode display, the LCD.
6. according to claim 1,2 or 3 described speed detectors, it is characterized in that also comprise timer, the output terminal of said timer is connected with the clear terminal of counter, when the timing of regulation is satisfied with the count value zero clearing of counter.
7. axle speed detector according to claim 6 is characterized in that the output terminal of said timer is connected with the input end of MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101625533A CN102360022A (en) | 2011-09-16 | 2011-09-16 | Shaft speed detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101625533A CN102360022A (en) | 2011-09-16 | 2011-09-16 | Shaft speed detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102360022A true CN102360022A (en) | 2012-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101625533A Pending CN102360022A (en) | 2011-09-16 | 2011-09-16 | Shaft speed detection device |
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| Country | Link |
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| CN (1) | CN102360022A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044380A (en) * | 2015-06-12 | 2015-11-11 | 遵义市立新机械有限责任公司 | Infrared-based crusher speed measurement apparatus |
| CN106022453A (en) * | 2016-05-23 | 2016-10-12 | 南宁市茂百科技有限公司 | Product counter with infrared bi-emission |
-
2011
- 2011-09-16 CN CN2011101625533A patent/CN102360022A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105044380A (en) * | 2015-06-12 | 2015-11-11 | 遵义市立新机械有限责任公司 | Infrared-based crusher speed measurement apparatus |
| CN106022453A (en) * | 2016-05-23 | 2016-10-12 | 南宁市茂百科技有限公司 | Product counter with infrared bi-emission |
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Application publication date: 20120222 |