CN207716967U - A kind of capacitor blasting machine - Google Patents
A kind of capacitor blasting machine Download PDFInfo
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- CN207716967U CN207716967U CN201721841663.1U CN201721841663U CN207716967U CN 207716967 U CN207716967 U CN 207716967U CN 201721841663 U CN201721841663 U CN 201721841663U CN 207716967 U CN207716967 U CN 207716967U
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- capacitor
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- blasting machine
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Abstract
The place that the utility model is suitable for having gas and coal-dust explosion, for detonating primer, it charges to polarity free capacitor using bridge rectifier, can accurately safety reliably control 4ms power-on times, greatly save electric energy, it is using a switch successively to measuring circuit, charging circuit and detonation circuit centralized control, it is easy to use, a kind of capacitor blasting machine, including shell, shell includes lower housing and upper shell, capacitor is equipped in lower housing, wiring board, transformer, accumulator and switch, switch connection line plate, wiring board is electrically connected capacitor, transformer and accumulator, accumulator connects connecting terminal, connecting terminal is located on upper shell, connecting terminal is equipped with charging jacks, charging socket connection line plate, switch is equipped with Sign Board.
Description
Technical field
The utility model is related to cap sensitive technical fields, and in particular to a kind of capacitor blasting machine.
Background technology
The current exploder of China's coal-mine is all to generate high pressure using voltage doubling rectifing circuit, and charging capacitor uses 33 μ F/
500V, with its series voltageDetonating primer is shown in Fig. 1；The exploder also used uses " mechanical ms switch ", former
Reason is external force connects circuit to breaking circuit again when 4ms by machine components transmission to twist spring.
There are following defects for the current various exploder of China's coal-mine：1, voltage doubling rectifing circuit is more complex, and rectification efficiency
It is low, it should not use；
2, electrolytic capacitor error is big, and performance is unstable, is not preferably used in exploder circuit；
3, each electrolytic capacitor is used in series, and discharge time is very long, for detonating primer energy less than gross energy 4 ‰, is remained
Complementary energy slatterns；
4, different size（Refer to detonating primer ability）Exploder detonating primer after residual voltageLow then a few hectovolts, Gao Ze
2.4KV, i.e.,≫6V（Note）, in case of a fault, gas and coal-dust explosion will be caused；
5, the relative motion of " mechanical ms switch " each part, which generates friction and generates to wear, leads to part deformation；Metal has
Fatigue phenomenon, spring is especially true, repeatedly twist, necessarily deform, the deformation of part and spring, for control 4ms power supply tell between
It is insecure；
6, but also trouble not only uneconomical using disposable dry cell.
Utility model content
The purpose of this utility model is existing insufficient in view of the prior art, it is proposed that a kind of capacitor blasting machine, packet
Shell is included, the shell includes lower housing and upper shell, and capacitor, wiring board, transformer, storage are installed in the lower housing
Battery and switch, the switch connection line plate, the wiring board are electrically connected capacitor, transformer and accumulator, institute
The accumulator connection connecting terminal stated, the connecting terminal is equipped with charging jacks, described
Connecting terminal be located on upper shell, the upper shell be equipped with capacitor charging indicator light, measure indicator light and
Battery charge indicator, the capacitor charging indicator light, measurement indicator light and battery charge indicator are separately connected electricity
Capacity charge circuit, measuring circuit and battery charging circuit, the capacitor charging circuit, measuring circuit and accumulator charging electricity
Road is installed in the circuit board, and the switch is equipped with Sign Board, and the Sign Board is located on upper shell.
The switch includes key, and the key is inserted into connecting rod, and the connecting rod connects transmission shaft, the transmission
Axis is equipped with moving contact, and the transmission shaft passes through split washer and axle sleeve, and ontology is bolted in the axle sleeve, described
Ontology below be equipped with switch upper cover, the switch upper cover lower end is equipped with fixed contact plate, and it is fixed that the fixed contact plate is equipped with
Contact, the fixed contact coordinate moving contact, the fixed contact plate lower end to be equipped with switch lower cover, and the switch lower cover is fixed
On the supporting plate.
The transmission shaft is equipped with positioning plate, and pressing plate is equipped with below the positioning plate, and the pressing plate is equipped with circle
Slot, the circular groove is interior to be equipped with ball, and raceway plate is equipped with above the ball.
The lower housing and upper shell is bolted.
The lower housing is equipped with lifting lug, and the lifting lug is perforated equipped with shoulder strap, and the shoulder strap penetration hole diameter is
4mm。
The upper shell is equipped with nameplate.
The wiring board is equipped with bridge rectifier, and the bridge rectifier output voltage fills capacitor
Electricity, detonating primer.
The contact surface of the upper shell and lower housing is explosion-proof face.
The capacitor is non-polar condenser, and the capacitor is multiple, and the capacitance parameter of multiple capacitors
It is identical.
The different charging socket of diameter there are two being set on two connecting terminals.
The beneficial effects of the utility model are：Suitable for there is a place of gas and coal-dust explosion, when work, no matter occur assorted
Failure, including short circuit, open circuit, any element damage, to external circuit, highest output=2.5KV voltages are decayed through t=4ms
For residual voltage=0.24V<<6V, so this circuit not only safety but also reliable, and be not required to setting control power-on time t=
4ms devices or circuit.It can reliably, accurately control 4ms（Millisecond）Power-on time really meets national standard GB7958-87《Coal
Mining capacitor blasting machine》Regulation.It using bridge rectifier to polarity free capacitor charge, can accurately safety it is reliable
Ground controls 4ms power-on times, greatly saves electric energy, it is using a switch successively to measuring circuit, charging circuit and ignition
Circuit centralized control, it is easy to use.
Description of the drawings
Fig. 1 is prior art high-tension circuit schematic diagram.
Fig. 2 is lower housing internal structure plan view in the utility model.
Fig. 3 is upper shell plan view in the utility model.
Fig. 4 is switch structure diagram.
Fig. 5 is the utility model circuit diagram.
Fig. 6 is the utility model connection terminal structure figure.
Specific implementation mode
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；It is attached in order to more preferably illustrate the present embodiment
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.
The utility model is described in further detail below in conjunction with the accompanying drawings:A kind of capacitor blasting machine, including shell, it is described
Shell include lower housing 10 and upper shell 6, capacitor, wiring board 4, transformer 7, accumulator are equipped in the lower housing 10
2 are electrically connected capacitor, transformer 7 and accumulator with switch 11, the 11 connection line plate 4 of switch, the wiring board 4
2, the accumulator 2 connects connecting terminal 3, and the connecting terminal 3 is equipped with charging jacks, and the connecting terminal 3 is located at
On upper shell 6, the upper shell 6 is equipped with capacitor charging indicator light 13, measures indicator light 14 and battery charge indicator
16, the capacitor charging indicator light 13, measurement indicator light 14 and battery charge indicator 16 are separately connected capacitor charging electricity
Road, measuring circuit and battery charging circuit, the capacitor charging circuit, measuring circuit and battery charging circuit are mounted on
On wiring board 4, the switch 11 is equipped with Sign Board 5, and the Sign Board 5 is located on upper shell 6.
The switch 11 includes key 1101, and the key 1101 is inserted into connecting rod 1102, and the connecting rod 1102 connects
Transmission shaft 1103 is connect, the transmission shaft 1103 is equipped with moving contact 1111, and the transmission shaft 1103 passes through split washer
1112 and axle sleeve 1104, the axle sleeve 1104 connects ontology by bolt 1105, and switch upper cover is equipped with below the ontology
1106,1106 lower end of switch upper cover is equipped with fixed contact plate 1107, and 1107 are equipped with fixed contact on the fixed contact plate
1108, the fixed contact 1108 coordinates moving contact 1111,1107 lower end of fixed contact plate to be equipped with switch lower cover 1109, institute
9 lower cover 1109 of switch stated is fixed in support plate 1110.
The transmission shaft 1103 is equipped with positioning plate 1114, and 1114 lower section of positioning plate is equipped with pressing plate 1113, institute
The pressing plate 1113 stated is equipped with circular groove, and ball 118 is equipped in the circular groove, and 118 top of ball is equipped with raceway plate
115。
The lower housing 10 and upper shell 6 is connected by bolt 12.
The lower housing 10 is equipped with lifting lug, and the lifting lug is equipped with shoulder strap perforation 1, and shoulder strap perforation 1 is straight
Diameter is 4mm.
The upper shell 6 is equipped with nameplate 8.
The wiring board 4 is equipped with bridge rectifier, and the bridge rectifier output voltage fills capacitor
Electricity, detonating primer.
The contact surface of the upper shell 6 and lower housing 10 is explosion-proof face.
The accumulator 2 can charge use repeatedly, instead of disposable dry cell.
The capacitor is non-polar condenser, and the capacitor is multiple, and the capacitance parameter of multiple capacitors
It is identical.
The different charging socket of diameter there are two being set on two connecting terminals.
The switch 11 is irreversible switch S, and is divided into three layers, is respectively in circuit diagram、、, synchronous
Rotation, there are three off-positions, and to measuring circuit, charging circuit, detonation circuit centralized control, each off-position has apparent word mark
Know；Switch can only the rotation of direction, there are three 60 ° of off-position intervals；The switch S twists 1102 band of connecting rod with key 1101
Moving axis 1103 rotates, and three two-way moving contacts 1111 are rotated therewith to be connected or disconnected with 12 static contacts 1108 on periphery
1, switch S contact bridge is placed in 0（Same position is indicated with igniting）At this point, each circuit is stopped, although、Detonation circuit is connected, but because of capacitanceDischarge off, then can be put without electricity.
2, clockwise 60 degree of switch S extremely measures position：Disconnect detonation circuit, contact、Connect measuring circuit
CL, if luminous tube at this timeIt is bright, illustrate that detonation circuit is connected, can charge.
3, clockwise 60 degree of switch S is to charge position：Disconnect measuring circuit, contact、、, connect
Charging circuit, voltageIt is right= = = Charging, works as capacitanceWhen both end voltage reaches 2.5KV, luminous tubeBright, charging finishes.
4, switch S extremely ignites position for clockwise 60 degree again（O）：Disconnect charging circuit, contact、It connects
Detonation circuit, capacitance= = = , while to detonator RL electric discharges and detonating primer.
It realizes centralized control, that is, measures, charges and ignite,
Now illustrate its safety reliability, exploder electric parameter by taking MF2-150 type exploders as an example：Detonating primer ability
F=50 is sent out, the Ω of load resistance RL=920, detonating primer voltage=2.5KV, nonpolarity storage capacitor= = ==0.47 μ F/3KV, capacitanceDischarge time t=4ms（Instead of national standard power-on time t=4ms）, calculate capacitanceIgnite thunder
Residual voltage after pipe。
==2500×=2500×=2500 × 0.000096=0.24V,
U4=0.24<<6V cannot generate spark, cannot cause gas and coal-dust explosion, and when work, no matter what's wrong, including
Short circuit, open circuit, any element damage, to external circuit, highest output=2.5KV voltages, residual voltage is decayed to through t=4ms=
0.24V<<6V so this circuit is not only safe but also reliable, and is not required to setting control power-on time t=4ms devices or electricity
Road.
The explanation of main circuit：
1, bridge rectifier constituent element：L3 windings, the diode of transformer 7-, switch, switch。
2, measuring circuit：Measuring circuit is made of following elements：Accumulator E, multivibrator DZ, transformer wire groupTwo
Pole pipe, luminous tube, capacitance, resistanceAnd, triodeMake and break contact、, connecting terminal
And, detonator resistance, the circuit triodeUsing common base connection, internal resistance Ro >=RL measures electric current and is determined substantially by Ro
It is fixed, triodeUsing its base stage connection internal resistanceIt is very big, measure electric current substantially byIt determines.
Measuring circuit CL indication light diodes, capacitanceCharging instruction light emitting diode, accumulator charging refer to
Show light emitting diode, the switch S electrically connects wiring board XB, capacitance, accumulator E, transformer B, the circuit
PlateWeld oscillating circuit DZ, measuring circuit CL, bridge rectifier QZ, capacitance, charging indication yc, accumulator fill
Electric indicating circuit XC electronic components.
3, detonation circuit：Capacitance= ：：、 、 Detonator RL, resistance、、、
Diode、, triode, luminous tube。
4, battery charging circuit：It does not set connecting terminal separately but utilizes former connecting terminalAndIt charges to accumulator,
Circuit is made of following elements：Connecting terminalAndOn jackAnd, diodeAnd, luminous tube、
Diode, accumulator E.
5, charging circuit：Use light emitting diode insteadDisplay：Use bridge rectifier QZ output voltages insteadTo capacitance= = = Charging, circuit are constituted：Resistance、、, diodeAnd, triode, shine
Diode, bridge rectifier QZ, capacitance= = = , switch、、。
The explanation of main element and parameter：
1, each detonator resistance is calculated by 6 Ω（Containing lead resistance）, blow out line resistance and calculated by 20 Ω.Determining exploder
In the case of detonating primer ability F, then foundation GB7958-87 determines voltage。
2, capacitance is usedDischarge time t=4ms, instead of power-on time t=4ms of GB7958-87.
3, capacitanceResidual voltageIt chooses as the following formula：0≤U4<6V.
4, capacitanceAnd residual voltageCalculating.
= =
CapacitanceError should be, the short circuit dischange under rated voltage, continuous 2 indeformable fixed values are to close
Lattice.
5, the magnetic circuit material of transformer 7B selects shell-type ferrite.
Adjustment method：
1, electrostatic voltmeter is terminated in a, b two, adjustment multivibrator DZ keeps oscillation most strong, the secondary of adjustment transformer 7B
Number of winding turns makesFor required value.
2, RL is replaced with 5W enamelled resistors, initiation impulse instrument is accessed, if K<8.7A2ms, this illustrates capacitanceEnergy cannot
Detonating primer RL increases simultaneously capacitance, until K >=8.7A2ms, this illustrates capacitanceEnergy can detonating primer RL.
3, enamelled resistor is subtracted 12 Ω replaces experiment, detonator that should explode with 2 hair detonators, is not less than 0.5 grade with accuracy
Voltmeter measures residual voltage, should be consistent in calculated value（The above debugging should be operated by profession experiment electrician）.
The utility model is suitable for having the place of gas and coal-dust explosion, and when work, no matter what's wrong, including short
Road, open circuit, any element damage, to external circuit, highest output=2.5KV voltages, residual voltage is decayed to through t=4ms=
0.24V<<6V so this circuit is not only safe but also reliable, and is not required to setting control power-on time t=4ms devices or electricity
Road.It can reliably, accurately control 4ms（Millisecond）Power-on time really meets national standard GB7958-87《Coal mine condenser type
Exploder》Regulation.
Note：Quoted from《Explosion-proof electrification technology and application》5 Heilungkiang the Ren Bian science tech publishing house such as Wang Wenyi publishes, book number
In August, 15217177,1985 is published, page 341 " capacitive circuit ".
Finally illustrate, choose above-described embodiment and it is described in detail and description is to preferably say
The technical solution of bright patent of the present invention, be not intended to be confined to shown in details.Those skilled in the art is to the present invention's
Technical solution is modified or is replaced on an equal basis, without departing from the objective and range of technical solution of the present invention, should all cover at this
In the right of invention.
Claims (10)
1. a kind of capacitor blasting machine, including shell, it is characterised in that：The shell includes lower housing and upper shell, described
Lower housing in installation capacitor, wiring board, transformer, accumulator and switch, the switch connection line plate, the line
Road plate is electrically connected capacitor, transformer and accumulator, and the accumulator connects connecting terminal, set on the connecting terminal
There are charging jacks, the connecting terminal to be located on upper shell, the upper shell is equipped with capacitor charging indicator light, measurement refers to
Show that lamp and battery charge indicator, the capacitor charging indicator light measure indicator light and battery charge indicator difference
Connect capacitor charging circuit, measuring circuit and battery charging circuit, the capacitor charging circuit, measuring circuit and accumulator
Charging circuit is installed in the circuit board, and the switch is equipped with Sign Board, and the Sign Board is located on upper shell.
2. a kind of capacitor blasting machine according to claim 1, it is characterised in that：The switch includes key, described
Key be inserted into connecting rod, the connecting rod connects transmission shaft, and the transmission shaft is equipped with moving contact, and the transmission shaft passes through
Split washer and axle sleeve, the axle sleeve are bolted ontology, switch upper cover are equipped with below the ontology, described opens
It shuts lid lower end and is equipped with fixed contact plate, the fixed contact plate is equipped with fixed contact, and the fixed contact coordinates moving contact, described
Fixed contact plate lower end be equipped with switch lower cover, the switch lower cover fix on the supporting plate.
3. a kind of capacitor blasting machine according to claim 2, it is characterised in that：The transmission shaft is equipped with positioning
Plate, positioning plate lower section are equipped with pressing plate, and the pressing plate is equipped with circular groove, and ball is equipped in the circular groove, described
Raceway plate is equipped with above ball.
4. a kind of capacitor blasting machine according to claim 1, it is characterised in that：The lower housing and upper shell passes through
It is bolted.
5. a kind of capacitor blasting machine according to claim 1, it is characterised in that：The lower housing is equipped with lifting lug,
The lifting lug is perforated equipped with shoulder strap, and the shoulder strap penetration hole diameter is 4mm.
6. a kind of capacitor blasting machine according to claim 1, it is characterised in that：The upper shell is equipped with nameplate.
7. a kind of capacitor blasting machine according to claim 1, it is characterised in that：It is whole that the wiring board is equipped with bridge-type
Current circuit, the bridge rectifier output voltage charge to capacitor, detonating primer.
8. a kind of capacitor blasting machine according to claim 1, it is characterised in that：The wiring board is electrically connected multi resonant
Pierce circuit, measuring circuit, capacitor charging circuit and battery charging circuit.
9. a kind of capacitor blasting machine according to claim 1, it is characterised in that：The capacitor is polarity free capacitor
Device, the capacitor is multiple, and the capacitance parameter of multiple capacitors is identical.
10. a kind of capacitor blasting machine according to claim 1, it is characterised in that：It is set on two connecting terminals
There are two the different charging sockets of diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721841663.1U CN207716967U (en) | 2017-12-26 | 2017-12-26 | A kind of capacitor blasting machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721841663.1U CN207716967U (en) | 2017-12-26 | 2017-12-26 | A kind of capacitor blasting machine |
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| CN207716967U true CN207716967U (en) | 2018-08-10 |
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ID=63049821
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109463185A (en) * | 2018-11-07 | 2019-03-15 | 北方特种能源集团有限公司西安庆华公司 | A kind of airborne increasing rain flame item with high security and high reliability |
-
2017
- 2017-12-26 CN CN201721841663.1U patent/CN207716967U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109463185A (en) * | 2018-11-07 | 2019-03-15 | 北方特种能源集团有限公司西安庆华公司 | A kind of airborne increasing rain flame item with high security and high reliability |
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