CN206099312U - Machine broken shaft protection device thoughtlessly dries in air - Google Patents
Machine broken shaft protection device thoughtlessly dries in air Download PDFInfo
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- CN206099312U CN206099312U CN201621013672.7U CN201621013672U CN206099312U CN 206099312 U CN206099312 U CN 206099312U CN 201621013672 U CN201621013672 U CN 201621013672U CN 206099312 U CN206099312 U CN 206099312U
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Abstract
The utility model discloses a machine broken shaft protection device thoughtlessly dries in air, it includes explosion -proof stall switch and response piece, and the axle head of keeping away from the motor at the quick -witted (mixing) shaft that thoughtlessly dries in the air is installed to the response piece, and explosion -proof stall switch mounting is on the spindle bearing support frame that thoughtlessly dries in the air, and explosion -proof stall switch lies in same water flat line with the response piece and goes up relative installation and the certain distance in the two interval, explosion -proof stall switch includes induced surface, pulse sensor and implementation of circuit. The utility model discloses constitute simple, operation simple installation, can in time make the (mixing) shaft stall in the quick -witted (mixing) shaft fracture back of thoughtlessly drying in the air, avoided thoughtlessly drying in the air the machine because the axle accident of blasting absolutely.
Description
Technical field
This utility model is related to a kind of mixed machine off-axis protection device of drying in the air, and belongs to civil explosive production technical field.
Background technology
In the production process of commercial explosive, explosive raw material needs the stirring mixing through the mixed machine that dries in the air, the mixed machine of drying in the air to include groove
Body and screw agitation shaft, screw agitation shaft typically have 5 meters long, are driven by motor and are rotated, and raw material is realized in the rotation of screw agitation shaft
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 screw agitation shaft
Length is longer, and after prolonged rotation, situation about rupturing easily occurs in axle, and when axle is had no progeny, still exists with the axle at motor connection end
Rotate, and another semiaxis for rupturing stop operating, the screw agitation shaft of rotation can occur friction with cell body and the axle for stopping operating,
The explosive that heat ignites in even ignition cell body is produced, causes the generation of explosion safety accident.
Utility model content
In view of this, this utility model 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 sending out as axle is disconnected
Raw explosion accident.
To solve above technical problem, the technical solution of the utility model is using a kind of mixed machine off-axis protection dress that dries in the air
Put, it includes explosion-proof stall switch and sensing chip, sensing chip is arranged on mixed shaft end of the machine shaft away from motor of drying in the air, explosion-proof stall
Switch dries in the air on machine bearing seat supports frame installed in mixed, explosion-proof stall switch be located in same horizontal line with sensing chip be mounted opposite and
The two is spaced a distance；The explosion-proof stall switch includes sensitive surface, impulser and execution circuit.
Further, the sensing chip is iron plate of the thickness more than 7mm.
Further, the sensing iron plate section is arc, and its radian is matched with the radian of the mixed machine shaft that dries in the air.
Preferably, area of the area of the sensing chip more than sensitive surface.
Further, this utility model also includes explosion-proof audible-visual annunciator, and the explosion-proof audible-visual annunciator is arranged on mixed drying in the air
On machine feed opening flange, electrically connect with explosion-proof stall switch.So operator can faster learn the mixed machine shaft that dries in the air
Crack conditions, take emergency measures in time.
Further, the explosion-proof stall switch and the distance of sensing chip installation interval are 2-5mm, preferred 4mm.
Explosion-proof stall switch is a kind of economic, highly reliable monitoring to rotating speed and other rotary apparatuss simple general-purposes
Device, when current tach signal is monitored below or above rated speed scope, switch exports one group of switching signal, for reporting to the police
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 which is collected from rotary shaft by face sends impulser to, and the pulse signal is input to by impulser
In execution circuit, counted after amplified, shaping, then the count value is compared with the rotation rotating speed for pre-setting
Compared with while execution circuit exports 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 this utility model, rule of thumb and is needed
The minimum speed of shaft is preset on stall switch, when the rotating speed of stall switch monitors to axle is less than setting value, is lost
Pulse signal is delivered to speed switch the work drive motor of the mixed machine that dries in the air, and the coil control circuit of work drive motor is received after signal automatically
Power-off, motor quit work, and equipment is out of service, works on so as to avoid axle motor of having no progeny, mutually rubs between off-axis
Wipe and produce spark ignition charge.Therefore, this utility model composition is simple, operate simple installation, can be in the mixed machine stirring axle fracture that dries in the air
Afterwards, shaft is made to stop operating in time, it is to avoid the mixed machine that dries in the air occurs explosion accident as axle is disconnected.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is circuit theory diagrams of the present utility model.
Marginal data：
1st, mix the machine that dries in the air；2nd, shaft；3rd, bearing block bracing frame；4th, feed opening flange；5th, explosion-proof stall switch；6th, sense
Piece；7th, explosion-proof audible-visual annunciator；8th, work drive motor；9th, work drive motor coil.
Specific embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, with reference to being embodied as
The utility model is described in further detail for mode.
Referring to Fig. 1, this utility model provides a kind of mixed machine off-axis protection device of drying in the air, and it includes explosion-proof stall switch 5
With sensing chip 6, installed in shaft end of the shaft 2 away from motor for mixing the machine 1 that dries in the air, explosion-proof stall switchs 5 and is arranged on mixed drying in the air sensing chip 6
On the bearing block bracing frame 3 of machine 1, explosion-proof stall switch 5 is located in same horizontal line with sensing chip 6 and is mounted opposite and the two interval
A certain distance, the distance are 2-5mm, preferred 4mm；The explosion-proof stall switch includes sensitive surface, impulser and execution
Circuit, the area of sensing chip should be greater than the area of sensitive surface；The sensing chip 6 is more than the iron plate of 7mm, preferred sensing chip for thickness
Section is arc, and its radian is matched with the radian of the mixed machine shaft that dries in the air；It is preferred that this utility model also includes explosion-proof audible-visual annunciator
7, the 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 is electrically connected with explosion-proof stall switch 5.
, referring to Fig. 2, during work, operator are rule of thumb on explosion-proof stall switch for circuit theory diagrams of the present utility model
The minimum speed of shaft is preset, shows stirring when explosion-proof stall switch 5 monitors that the rotating speed of axle is less than setting value
Axle there occurs fracture, and explosion-proof audible-visual annunciator 7 sends alarm staff, while explosion-proof stall switchs 5 by pulse signal
Be delivered to the work drive motor 8 of the mixed machine that dries in the air, the coil control circuit of work drive motor receive signal after work drive motor coil 9 from dynamic circuit breaker
Electricity, motor quit work, equipment is out of service, it is to avoid the axle and cell body for being rotated further with the axle of motor connection and being ruptured is occurred
Friction, ignites or ignition charge.
The above is only preferred implementation of the present utility model, it is noted that above-mentioned preferred implementation should not be regarded
It is that, to restriction of the present utility model, protection domain of the present utility model should be defined by claim limited range.For
For those skilled in the art, in without departing from spirit and scope of the present utility model, can also make some
Improvements and modifications, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (8)
- It is 1. a kind of to mix 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 In mixed shaft end of the machine shaft away from motor of drying in the air, explosion-proof stall switch dries in the air on machine bearing seat supports frame installed in mixed, explosion-proof stall Switch is mounted opposite in same horizontal line with sensing chip and the two is spaced a distance；The explosion-proof stall switch includes Sensitive surface, impulser and execution circuit.
- 2. one kind according to claim 1 mixes machine off-axis protection device of drying in the air, it is characterised in that：The sensing chip is thickness More than the iron plate of 7mm.
- 3. one kind according to claim 2 mixes machine off-axis protection device of drying in the air, it is characterised in that：The iron plate section is arc Shape, its radian are matched with the radian of the mixed machine shaft that dries in the air.
- 4. one kind according to claim 1 and 2 mixes machine off-axis protection device of drying in the air, it is characterised in that：The sensing chip Area of the area more than sensitive surface.
- 5. one kind according to claim 1 mixes machine off-axis protection device of drying in the air, it is characterised in that：Also include explosion-proof acousto-optic report Alert device, the explosion-proof audible-visual annunciator are electrically connected with explosion-proof stall switch.
- 6. one kind according to claim 5 mixes machine off-axis protection device of drying in the air, it is characterised in that：The explosion-proof sound and light alarm Device is arranged on mixed drying in the air on machine feed opening flange.
- 7. one kind according to claim 1 mixes machine off-axis protection device of drying in the air, it is characterised in that：The explosion-proof stall switch Distance with sensing chip installation interval is 2-5mm.
- 8. one kind according to claim 7 mixes machine off-axis protection device of drying in the air, it is characterised in that：The explosion-proof stall switch Distance with sensing chip installation interval is 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621013672.7U CN206099312U (en) | 2016-08-30 | 2016-08-30 | Machine broken shaft protection device thoughtlessly dries in air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621013672.7U CN206099312U (en) | 2016-08-30 | 2016-08-30 | Machine broken shaft protection device thoughtlessly dries in air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206099312U true CN206099312U (en) | 2017-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621013672.7U Active CN206099312U (en) | 2016-08-30 | 2016-08-30 | Machine broken shaft protection device thoughtlessly dries in air |
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| Country | Link |
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| CN (1) | CN206099312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300268A (en) * | 2016-08-30 | 2017-01-04 | 四川凯达化工有限公司 | A kind of mixed machine off-axis protection device of drying in the air |
-
2016
- 2016-08-30 CN CN201621013672.7U patent/CN206099312U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300268A (en) * | 2016-08-30 | 2017-01-04 | 四川凯达化工有限公司 | A kind of mixed machine off-axis protection device of drying in the air |
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