CN204666656U - A kind of test of coal dust flowing parameter sensors and calibrating installation - Google Patents
A kind of test of coal dust flowing parameter sensors and calibrating installation Download PDFInfo
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- CN204666656U CN204666656U CN201520205530.XU CN201520205530U CN204666656U CN 204666656 U CN204666656 U CN 204666656U CN 201520205530 U CN201520205530 U CN 201520205530U CN 204666656 U CN204666656 U CN 204666656U
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Abstract
The test of coal dust flowing parameter sensors and a calibrating installation, comprise stage body (1), synchronous belt drive mechanism (2), driving wheel transmission mechanism (3), engaged wheel gear train (4), ball-screw transmission mechanism (5), electrification by friction mechanism (6), round belt support gear train (7), PU circular strap (8) and PLC control cabinet (9); Synchronous belt drive mechanism (2) is connected with driving wheel transmission mechanism (3) by Timing Belt, and the driven by servomotor Timing Belt of synchronous belt drive mechanism (2) drives the secondary synchronous pulley wheel on driving wheel transmission mechanism (3) to rotate; PU circular strap (8) is connected on driving wheel transmission mechanism (3), engaged wheel gear train (4), support wheel gear train (7) by rotor wheel.The utility model is used for the speed that simulation test flows through the coal dust of coal dust flowing parameter sensors, according to the result of simulation test, to the calibration of coal dust flowing parameter sensors.
Description
Technical field
The utility model belongs to thermal power generating technology field, a kind of device of the coal dust flowing parameter sensors of main analog Test Application in fuel-burning power plant.According to the result of simulation test, coal dust flowing parameter sensors is calibrated, thus optimizes the measuring accuracy of coal dust flowing parameter sensors.
Background technology
The precision of coal dust flowing parameter sensors tested by the small-sized low speed proving installation of many employings on the market at present, and major part is used for laboratory.
, mainly there is following problem in the application of existing method of testing:
1. proving installation is little, can only test the sensor that internal diameter is less than 100mm, but in fact fuel-burning power plant coal pulverizer outlet wind powder pipe road diameter minimum also have 400mm, so this device can not be tested by real sensor size;
2. test speed is low, because device is small and exquisite, and mostly apply to laboratory, this device only possesses low speed test function, test speed is less than 5m/s, but in fact coal pulverizer exports the flow velocity of coal dust in wind powder pipe road at 20-30m/s, so this device can not by actual flow velocity testing sensor, test result simply can not convert with linear method and reach a conclusion, therefore the accuracy of its test result is still to be tested.
Summary of the invention
The speed of the coal dust of coal dust flowing parameter sensors is flow through, according to the result of simulation test, to the calibration of coal dust flowing parameter sensors in order to simulation test.The utility model provide a kind of flow through coal dust flowing parameter sensors static charge to simulate coal dust, what coal dust flowing parameter sensors responded to static charge flows through speed, by crossing velocity contrast to the coal dust flowing induction speed of parameter sensors and real flow of electrostatic charges, thus obtain the induction precision of coal dust flowing parameter sensors.
The utility model is concrete by the following technical solutions:
A kind of test of coal dust flowing parameter sensors and calibrating installation, comprise stage body 1, synchronous belt drive mechanism 2, driving wheel transmission mechanism 3, engaged wheel gear train 4, ball-screw transmission mechanism 5, electrification by friction mechanism 6, round belt supports gear train 7, (PU is the abbreviation of Polyurethane to PU, Chinese polycarbamate by name, is called for short polyurethane) circular strap 8 and PLC control cabinet 9; It is characterized in that:
Synchronous belt drive mechanism 2, driving wheel transmission mechanism 3, engaged wheel gear train 4, ball-screw transmission mechanism 5, electrification by friction mechanism 6, round belt support gear train 7 and are installed on stage body 1;
Synchronous belt drive mechanism 2 is connected with driving wheel transmission mechanism 3 by Timing Belt, and the driven by servomotor Timing Belt of synchronous belt drive mechanism 2 drives the secondary synchronous pulley wheel on driving wheel transmission mechanism 3 to rotate;
PU circular strap 8 is connected on driving wheel transmission mechanism 3, engaged wheel gear train 4, support wheel gear train 7 by rotor wheel;
The servomotor of PLC control cabinet 9 line synchronous belt drive mechanism 2 and the servomotor of ball-screw transmission mechanism 5.
This device drives the servomotor work of synchronous belt drive mechanism and ball-screw transmission mechanism by PLC control cabinet, and synchronous belt drive mechanism transmission can make through the inner PU circular strap high-speed drive with static charge of coal dust flowing parameter sensors; And the level of ball-screw transmission mechanism and vertical direction move the test position changing measurand " coal dust flowing parameter sensors ", the PU circular strap reached with static charge can test the optional position of coal dust flowing parameter sensors inside.
The utility model can also adopt following preferred version further:
Stage body 1 is welded by steel plate and square steel, surface plastic spraying, and table top flatness is no more than 0.5mm.
Synchronous belt drive mechanism 2 motor used is hypervelocity servomotor, motor speed 8000r/min.
Driving wheel transmission mechanism 3 arranges 1 secondary synchronous pulley, 2 driving wheels, 2 stretching pulleys.
Engaged wheel gear train 4 arranges 2 engaged wheels.
The electrification by friction device of electrification by friction mechanism 6 is pure wool brush, and wool brush and PU circular strap 8 rub and produce static charge.
Round belt supports the right side that gear train 7 is positioned at ball-screw transmission mechanism, and it respectively arranges one up and down and supports power wheel.
The material of PU circular strap is polyurethane, and itself and wool brush rub and produce electrostatic adhesion on surface.
Device stage body adopts monoblock cast processing.
The size sensor scope that device can be tested is: 100mm-1000mm (sensor internal diameter).
The highest drive line speed of PU circular strap reaches 50m/s.
The utility model has following useful technique effect:
(1) the PU circular strap of static electrification lotus can simulate the actual speed of coal dust in coal pulverizer outlet wind powder pipe road.
(2) the coal dust flowing parameter sensors of different inner diameters can be tested, cover the wind powder pipe road of different size.
(3) PU circular strap repeats welding use, repeatedly tests.
(4) synchronous pulley all adopts AL7075 aluminium alloy to process, and quality is light, and intensity is high, can High Rotation Speed.
(5) PU circular strap wheel body material is PA66, and quality is light, and insulation can High Rotation Speed.
(6) ball-screw transmission mechanism moves coal dust flow parameter sensor, compares artificial movement: fast, accurately, safely, easily.
(7) wool brush in electrification by friction mechanism, not only practical function, key is that its structure is simple, with low cost.
Accompanying drawing explanation
The test that Fig. 1-1 is coal dust flowing parameter sensors and calibrating installation front view;
Fig. 1-2 is test and the calibrating installation vertical view of coal dust flowing parameter sensors;
Fig. 2 is the structural representation of stage body;
Fig. 3 is the structural representation of synchronous belt drive mechanism;
Fig. 4 is the structural representation of driving wheel transmission mechanism;
Fig. 5 is the structural representation of engaged wheel gear train;
Fig. 6 is the structural representation of ball-screw transmission mechanism;
The structural representation of Tu7Shi electrification by friction mechanism;
Fig. 8 is the structural representation of support wheel gear train;
Fig. 9 is the structural representation of PU circular strap;
Figure 10 is the structural representation of PLC control cabinet.
Embodiment
As accompanying drawing 1-1,1-2 are depicted as test and the calibrating installation structural representation of coal dust flowing parameter sensors disclosed in the utility model, wherein Fig. 1-1 is test and calibrating installation front view, and Fig. 1-2 is test and calibrating installation vertical view.
The coal dust flowing test of parameter sensors and calibrating installation comprise synchronous belt drive mechanism 2, driving wheel transmission mechanism 3, engaged wheel gear train 4, ball-screw transmission mechanism 5, electrification by friction mechanism 6, round belt support gear train 7 and be installed on stage body 1; PU circular strap 8 is connected on driving wheel transmission mechanism 3, engaged wheel gear train 4, support wheel gear train 7 by rotor wheel.The servomotor of PLC control cabinet 9 line synchronous belt drive mechanism 2 and the servomotor of ball-screw transmission mechanism 5, make servomotor work, drives toothed belt transmission and ball-screw-transmission.Its principle of work is as follows:
First PLC control cabinet 9 can the servomotor of control synchronization tape handler 2 and the servomotor of ball-screw transmission mechanism 5 work alone respectively.When PLC control cabinet 9 orders about the servomotor machine operation of synchronous belt drive mechanism 2, motor drives the secondary synchronous pulley wheel on driving wheel transmission mechanism 3 to rotate by Timing Belt, secondary synchronous pulley wheel rotation on driving wheel transmission mechanism 3 is ordered about driving wheel and is rotated, and PU circular strap 8 is connected on driving wheel transmission mechanism 3, engaged wheel gear train 4, support wheel gear train 7 by rotor wheel, driving wheel drives the rotor wheel in each mechanism to rotate by the transmission of PU circular strap when rotating, thus makes the transmission of PU circular strap.During the transmission of PU circular strap and the wool brush friction belt static charge of electrification by friction mechanism 6 be attached on PU circular strap, the PU circular strap high-speed drive of static electrification lotus is inner by the coal dust flowing parameter sensors be fixed on ball-screw transmission mechanism 5, when PLC control cabinet 9 orders about the servomotor work of ball-screw transmission mechanism 5, the level of ball-screw transmission mechanism and vertical direction move the test position changing measurand " coal dust flowing parameter sensors ", the PU circular strap reached with static charge can test the optional position of coal dust flowing parameter sensors inside.
Be illustrated in figure 2 stage body, stage body is rectangle structure, and adopt steel plate and square steel to be welded, surface plastic spraying, the miscellaneous part except PLC case is installed on stage body.Stage body is placed on conductive flooring, and whole device levelness is no more than 1mm.The size sensor scope that device can be tested is: 400mm-700mm (sensor internal diameter).
Be synchronous belt drive mechanism as shown in Figure 3, comprise high-speed synchronous servomotor 1, Timing Belt main wheel 1, Timing Belt 1.Synchronous pulley is fixed on motor shaft, is connected on the secondary synchronous pulley of driving wheel transmission mechanism by Timing Belt.
Be driving wheel transmission mechanism as shown in Figure 4, comprise aluminium alloy post, secondary synchronous pulley 1, driving wheel 2, stretching pulley 2.Each wheel is arranged on aluminium alloy post respectively by high-speed bearing.
Be engaged wheel gear train as shown in Figure 5, comprise aluminium alloy post 2, transmission shaft 2, engaged wheel 2.Engaged wheel is fixed on aluminium alloy post by the high-speed bearing be arranged on transmission shaft.
Be ball-screw transmission mechanism as shown in Figure 6, comprise horizontal ball screw system 1, vertically ball screw system 1, servomotor 3,1, coal dust flowing parameter sensors support.Ball-screw transmission mechanism can meet the test position that level and vertical direction move to change measurand " coal dust flowing parameter sensors ".
Be electrification by friction mechanism as shown in Figure 7, comprise wool brush 4, each 1 of steel structure support, supporting plate 2.Electrification by friction mechanism is positioned at the left side of ball-screw transmission mechanism, when the transmission of PU circular strap, with wool brush electrification by friction, static charge is attached on PU circular strap, like this when PU circular strap is with friction speed simulation coal dust flow velocity, static charge is also inner by measurand " coal dust flowing parameter sensors " with identical speed simulation coal dust flow velocity, thus the measurement result of test coal dust flowing parameter sensors.
Be support wheel gear train as shown in Figure 8, comprise steel structure support 2, transmission shaft 2, support wheel 2.Power wheel is fixed on steel structure support by the high-speed bearing be arranged on transmission shaft.
Be PU circular strap as shown in Figure 9, belt is circular, and material is polyurethane.
Be PLC control cabinet as shown in Figure 10, rectangular structure, cabinet interior is PLC control system.
The example more than provided is in order to illustrate the present invention and its practical application, not any pro forma restriction is done to the present invention, any one professional and technical personnel, not departing from the scope of technical solution of the present invention, does certain modification according to above techniques and methods and changes the Equivalent embodiments of working as and being considered as equivalent variations.
Claims (8)
1. the coal dust flowing test of parameter sensors and a calibrating installation, comprises stage body (1), synchronous belt drive mechanism (2), driving wheel transmission mechanism (3), engaged wheel gear train (4), ball-screw transmission mechanism (5), electrification by friction mechanism (6), round belt supports gear train (7), PU circular strap (8) and PLC control cabinet (9); It is characterized in that:
Synchronous belt drive mechanism (2), driving wheel transmission mechanism (3), engaged wheel gear train (4), ball-screw transmission mechanism (5), electrification by friction mechanism (6), round belt support gear train (7) and are installed on stage body (1);
Synchronous belt drive mechanism (2) is connected with driving wheel transmission mechanism (3) by Timing Belt, and the driven by servomotor Timing Belt of synchronous belt drive mechanism (2) drives the secondary synchronous pulley wheel on driving wheel transmission mechanism (3) to rotate;
PU circular strap (8) is connected on driving wheel transmission mechanism (3), engaged wheel gear train (4), support wheel gear train (7) by rotor wheel;
The servomotor of PLC control cabinet (9) line synchronous belt drive mechanism (2) and the servomotor of ball-screw transmission mechanism (5).
2. the test of coal dust according to claim 1 flowing parameter sensors and calibrating installation, is characterized in that:
Stage body (1) is welded by steel plate and square steel, surface plastic spraying, and table top flatness is no more than 0.5mm.
3. the test of coal dust according to claim 1 flowing parameter sensors and calibrating installation, is characterized in that:
Synchronous belt drive mechanism (2) motor used is hypervelocity servomotor, motor speed 8000r/min.
4. the test of coal dust according to claim 1 flowing parameter sensors and calibrating installation, is characterized in that:
Driving wheel transmission mechanism (3) arranges 1 secondary synchronous pulley, 2 driving wheels, 2 stretching pulleys.
5. the test of coal dust according to claim 1 flowing parameter sensors and calibrating installation, is characterized in that:
Engaged wheel gear train (4) arranges 2 engaged wheels.
6. the test of coal dust according to claim 1 flowing parameter sensors and calibrating installation, is characterized in that:
The electrification by friction device of electrification by friction mechanism (6) is pure wool brush, and wool brush and PU circular strap (8) rub and produce static charge.
7. the test of coal dust according to claim 1 flowing parameter sensors and calibrating installation, is characterized in that:
Round belt supports the right side that gear train (7) is positioned at ball-screw transmission mechanism, and it respectively arranges one up and down and supports power wheel.
8. the test of coal dust according to claim 1 flowing parameter sensors and calibrating installation, is characterized in that:
The material of PU circular strap is polyurethane, and itself and wool brush rub and produce electrostatic adhesion on surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520205530.XU CN204666656U (en) | 2015-04-07 | 2015-04-07 | A kind of test of coal dust flowing parameter sensors and calibrating installation |
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| CN201520205530.XU CN204666656U (en) | 2015-04-07 | 2015-04-07 | A kind of test of coal dust flowing parameter sensors and calibrating installation |
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| CN204666656U true CN204666656U (en) | 2015-09-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372444A (en) * | 2015-11-24 | 2016-03-02 | 中国计量学院 | Medical movement flat plate speed calibration device and precision design and calibration method thereof |
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2015
- 2015-04-07 CN CN201520205530.XU patent/CN204666656U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372444A (en) * | 2015-11-24 | 2016-03-02 | 中国计量学院 | Medical movement flat plate speed calibration device and precision design and calibration method thereof |
| CN105372444B (en) * | 2015-11-24 | 2019-01-01 | 中国计量学院 | Medical exercise stress speed calibration device and its accuracy Design and calibration method |
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Address after: 101303 2nd floor, building 307, Guodian New Energy Institute, 9 Yingcai North 2nd Street, future science and Technology City, Changping District, Beijing Patentee after: Guoneng xinkong Internet Technology Co.,Ltd. Address before: Building 1, yard 16, West Fourth Ring Middle Road, Haidian District, Beijing 100039 Patentee before: BEIJING HUADIAN TIANREN ELECTRIC POWER CONTROL TECHNOLOGY Co.,Ltd. |