CN106300268A - A kind of mixed machine off-axis protection device of drying in the air - Google Patents
A kind of mixed machine off-axis protection device of drying in the air Download PDFInfo
- Publication number
- CN106300268A CN106300268A CN201610781543.0A CN201610781543A CN106300268A CN 106300268 A CN106300268 A CN 106300268A CN 201610781543 A CN201610781543 A CN 201610781543A CN 106300268 A CN106300268 A CN 106300268A
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- CN
- China
- Prior art keywords
- air
- proof
- explosion
- drying
- mixed machine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/093—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against increase beyond, or decrease below, a predetermined level of rotational speed
Abstract
The invention discloses a kind of mixed machine off-axis protection device of drying in the air; it includes explosion-proof stall switch and sensing chip; sensing chip is arranged on the mixed machine shaft axle head away from motor that dries in the air; explosion-proof stall switch is arranged on and mixed dries in the air on machine bearing seat supports frame, and explosion-proof stall switch and sensing chip are positioned on same level line and are mounted opposite and the two is spaced a distance；Described explosion-proof stall switch includes sensitive surface, impulser and execution circuit.The present invention forms simply, operates simple installation, shaft can be made in time to stop operating after mixed machine shaft fracture of drying in the air, it is to avoid the mixed machine that dries in the air occurs explosion accident owing to axle is disconnected.
Description
Technical field
The present invention relates to a kind of mixed machine off-axis protection device of drying in the air, belong to civil explosive production technical field.
Background technology
In the production process of commercial explosive, explosive raw material needs to dry in the air through overmulling the stirring mixing of machine, and the mixed machine of drying in the air includes groove
Body and auger axle, auger axle typically has 5 meters long, driven by motor rotates, and the rotation of auger axle realizes raw material
Mixing and the explosive that mixes of promotion move forward to the feed opening of the mixed trough body that dries in the air and discharge.But due to auger axle
Length is longer, and after rotating for a long time, the situation of fracture easily occurs in axle, and when axle is had no progeny, the axle being connected end with motor still exists
Rotating, and another semiaxis ruptured stops operating, the auger axle of rotation can rub with cell body and the axle stopped operating,
Generation heat ignites and even ignites the explosive in cell body, causes the generation of explosion safety accident.
Summary of the invention
In view of this, the present invention provides a kind of mixed machine off-axis protection device of drying in the air, and prevents the mixed machine that dries in the air from occurring quick-fried owing to axle is disconnected
Fried accident.
For solving above technical problem, the technical scheme is that the mixed machine off-axis protection device of drying in the air of employing one, it
Including explosion-proof stall switch and sensing chip, sensing chip is arranged on the mixed machine shaft axle head away from motor that dries in the air, and explosion-proof stall switchs
Being arranged on to mix dries in the air on machine bearing seat supports frame, and explosion-proof stall switch and sensing chip are positioned on same level line and are mounted opposite and the two
It is spaced a distance；Described explosion-proof stall switch includes sensitive surface, impulser and execution circuit.
Further, described sensing chip is the iron plate that thickness is more than 7mm.
Further, described sensing iron plate cross section is arc, and its radian mates with the radian of the mixed machine shaft that dries in the air.
Preferably, the area of described sensing chip is more than the area of sensitive surface.
Further, present invention additionally comprises explosion-proof audible-visual annunciator, described explosion-proof audible-visual annunciator is arranged on mixed drying in the air under machine
On material mouth flange, electrically connect with explosion-proof stall switch.So operator can learn the disconnected of the mixed machine shaft that dries in the air faster
Split situation, take emergency measures in time.
Further, described explosion-proof stall switch is 2-5mm, preferably 4mm with the distance of sensing chip installation interval.
Explosion-proof stall switch is a kind of economy, rotating speed highly reliable, countershaft and the monitoring of other rotary apparatus simple general-purpose
Device, is below or above rated speed scope when monitoring current tach signal, and switch one group of switching signal of output, for warning
Or shut down.Its operation principle is the faradism that the sensing chip installed in rotary shaft is supplied to sensitive surface acquisition pulse signal, sensing
The pulse signal that it is collected from rotary shaft by face sends impulser to, and this pulse signal is input to by impulser
Perform in circuit, count after amplified, shaping, then this count value is compared with the rotary shaft rotating speed pre-set
Relatively, perform circuit simultaneously export corresponding switching signal.
Explosion-proof stall switch is applied on the rotating speed of the mixed machine shaft that dries in the air of monitoring by the present invention, is rule of thumb losing with needs
Presetting the minimum speed of shaft on speed switch, when the rotating speed of stall switch monitors to axle is less than setting value, stall is opened
Closing the work drive motor that pulse signal is delivered to the mixed machine that dries in the air, the coil control circuit of work drive motor receives after signal from dynamic circuit breaker
Electricity, motor quits work, and equipment is the most out of service, thus avoids axle motor of having no progeny and work on, phase mutual friction between off-axis
Produce spark ignition charge.Therefore, the present invention forms simply, operates simple installation, can be after mixed machine shaft fracture of drying in the air, in time
The shaft is made to stop operating, it is to avoid the mixed machine that dries in the air occurs explosion accident owing to axle is disconnected.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the circuit theory diagrams of the present invention.
Marginal data:
1, the mixed machine that dries in the air；2, shaft；3, bearing block bracing frame；4, feed opening flange；5, explosion-proof stall switch；6, sensing
Sheet；7, explosion-proof audible-visual annunciator；8, work drive motor；9, work drive motor coil.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that technical scheme, below in conjunction with detailed description of the invention
The present invention is described in further detail.
Seeing Fig. 1, the invention provides a kind of mixed machine off-axis protection device of drying in the air, it includes explosion-proof stall switch 5 and sense
Answering sheet 6, sensing chip 6 to be arranged on the shaft 2 axle head away from motor of the mixed machine 1 that dries in the air, explosion-proof stall switch 5 is arranged on the mixed machine 1 that dries in the air
Bearing block bracing frame 3 on, explosion-proof stall switch 5 with sensing chip 6 be positioned on same level line be mounted opposite and the two be spaced one
Fixed distance, this distance is 2-5mm, preferably 4mm；Described explosion-proof stall switch includes sensitive surface, impulser and performs electricity
Road, the area of sensing chip should be greater than the area of sensitive surface；Described sensing chip 6 is more than the iron plate of 7mm for thickness, and preferably sensing chip cuts
Face is arc, and its radian mates with the radian of the mixed machine shaft that dries in the air；Preferably present invention additionally comprises explosion-proof audible-visual annunciator 7, described
Explosion-proof audible-visual annunciator 7 is arranged on the feed opening flange 4 of the mixed machine 1 that dries in the air, and electrically connects with explosion-proof stall switch 5.
The circuit theory diagrams of the present invention see Fig. 2, during work, operator rule of thumb explosion-proof stall switch in advance
Set the minimum speed of shaft, show that shaft is sent out when explosion-proof stall switch 5 monitors the rotating speed of axle less than setting value
Having given birth to fracture, explosion-proof audible-visual annunciator 7 sends alarm staff, and pulse signal is transmitted by the most explosion-proof stall switch 5
To the work drive motor 8 of the mixed machine that dries in the air, after the coil control circuit of work drive motor receives signal, work drive motor coil 9 automatically powers off,
Motor quits work, and equipment is out of service, it is to avoid the axle being connected with motor is rotated further and rubs with the axle ruptured and cell body
Wipe, ignite or ignition charge.
Below it is only the preferred embodiment of the present invention, it is noted that it is right that above-mentioned preferred implementation is not construed as
The restriction of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For the art
For those of ordinary skill, without departing from the spirit and scope of the present invention, it is also possible to make some improvements and modifications, these change
Enter and retouch and also should be regarded as protection scope of the present invention.
Claims (8)
1. a mixed machine off-axis protection device of drying in the air, it is characterised in that: including explosion-proof stall switch and sensing chip, sensing chip is installed
At the mixed machine shaft axle head away from motor that dries in the air, explosion-proof stall switch is arranged on to mix and dries in the air on machine bearing seat supports frame, explosion-proof stall
Switch is positioned on same level line with sensing chip and to be mounted opposite and the two is spaced a distance；Described explosion-proof stall switch includes
Sensitive surface, impulser and execution circuit.
The mixed machine off-axis protection device of drying in the air of one the most according to claim 1, it is characterised in that: described sensing chip is thickness
Iron plate more than 7mm.
The mixed machine off-axis protection device of drying in the air of one the most according to claim 2, it is characterised in that: described iron plate cross section is arc
Shape, its radian mates with the radian of the mixed machine shaft that dries in the air.
The mixed machine off-axis protection device of drying in the air of one the most according to claim 1 and 2, it is characterised in that: described sensing chip
Area is more than the area of sensitive surface.
The mixed machine off-axis protection device of drying in the air of one the most according to claim 1, it is characterised in that: also include explosion-proof acousto-optic report
Alert device, described explosion-proof audible-visual annunciator electrically connects with explosion-proof stall switch.
The mixed machine off-axis protection device of drying in the air of one the most according to claim 5, it is characterised in that: described explosion-proof sound and light alarm
Device is arranged on mixed drying in the air on machine feed opening flange.
The mixed machine off-axis protection device of drying in the air of one the most according to claim 1, it is characterised in that: described explosion-proof stall switchs
It is 2-5mm with the distance of sensing chip installation interval.
The mixed machine off-axis protection device of drying in the air of one the most according to claim 7, it is characterised in that: described explosion-proof stall switchs
It is 4mm with the distance of sensing chip installation interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610781543.0A CN106300268A (en) | 2016-08-30 | 2016-08-30 | A kind of mixed machine off-axis protection device of drying in the air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610781543.0A CN106300268A (en) | 2016-08-30 | 2016-08-30 | A kind of mixed machine off-axis protection device of drying in the air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106300268A true CN106300268A (en) | 2017-01-04 |
Family
ID=57672364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610781543.0A Pending CN106300268A (en) | 2016-08-30 | 2016-08-30 | A kind of mixed machine off-axis protection device of drying in the air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106300268A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201746079U (en) * | 2010-08-20 | 2011-02-16 | 芜湖思博机电设备有限公司 | Drive mechanism protection device |
| CN201990214U (en) * | 2010-07-08 | 2011-09-28 | 中国神华能源股份有限公司 | Slagging roller stall detection device and slagging roller of belt machine |
| CN202671094U (en) * | 2012-01-11 | 2013-01-16 | 上海神威机械有限公司 | Novel winch with safety device |
| CN204250848U (en) * | 2014-12-03 | 2015-04-08 | 安徽中烟工业有限责任公司 | Rod-pressing machine helical screw feeder stall detection alarm device |
| CN105259363A (en) * | 2015-11-13 | 2016-01-20 | 武汉钢铁(集团)公司 | Band conveyor stalling detection apparatus |
| CN206099312U (en) * | 2016-08-30 | 2017-04-12 | 四川凯达化工有限公司 | Machine broken shaft protection device thoughtlessly dries in air |
-
2016
- 2016-08-30 CN CN201610781543.0A patent/CN106300268A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201990214U (en) * | 2010-07-08 | 2011-09-28 | 中国神华能源股份有限公司 | Slagging roller stall detection device and slagging roller of belt machine |
| CN201746079U (en) * | 2010-08-20 | 2011-02-16 | 芜湖思博机电设备有限公司 | Drive mechanism protection device |
| CN202671094U (en) * | 2012-01-11 | 2013-01-16 | 上海神威机械有限公司 | Novel winch with safety device |
| CN204250848U (en) * | 2014-12-03 | 2015-04-08 | 安徽中烟工业有限责任公司 | Rod-pressing machine helical screw feeder stall detection alarm device |
| CN105259363A (en) * | 2015-11-13 | 2016-01-20 | 武汉钢铁(集团)公司 | Band conveyor stalling detection apparatus |
| CN206099312U (en) * | 2016-08-30 | 2017-04-12 | 四川凯达化工有限公司 | Machine broken shaft protection device thoughtlessly dries in air |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |
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| RJ01 | Rejection of invention patent application after publication |