CN213637550U - Mining vacuum electromagnetic starting device - Google Patents
Mining vacuum electromagnetic starting device Download PDFInfo
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- CN213637550U CN213637550U CN202021631438.7U CN202021631438U CN213637550U CN 213637550 U CN213637550 U CN 213637550U CN 202021631438 U CN202021631438 U CN 202021631438U CN 213637550 U CN213637550 U CN 213637550U
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- isolating switch
- cavity
- contactor
- door cover
- vacuum electromagnetic
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Abstract
The utility model relates to a mining vacuum electromagnetic starting device, which belongs to the technical field of mining vacuum electromagnetic starting devices; the technical problem to be solved is as follows: the improvement of the hardware structure of the mining vacuum electromagnetic starting device is provided; the technical scheme for solving the technical problems is as follows: the intelligent safety protection device comprises a shell, wherein a main cavity and a wiring cavity are arranged inside the shell, a door cover is arranged on the front surface of the main cavity, an emergency stop button, an isolating switch handle shaft and two anti-locking devices are arranged on the door cover, a cover plate is arranged on the front surface of the wiring cavity, an electrical assembly and an isolating switch are arranged inside the main cavity, the electrical assembly comprises at least two contactors and a protector, and an electrical lock is formed between the contactor and the isolating switch through the emergency stop button; a microcontroller is arranged in the protector and is respectively connected with the control ends of the two contactors and the control end of the isolating switch through leads; the utility model discloses be applied to the mine power supply.
Description
Technical Field
The utility model relates to a mining vacuum electromagnetic starting device belongs to mining vacuum electromagnetic starting device technical field.
Background
The mining explosion-proof low-voltage electromagnetic starter is an electrical product with the largest underground usage amount of a coal mine, is mainly suitable for a 660V or 1140V circuit of an underground alternating current 50Hz voltage of the coal mine, and directly or remotely starts and stops a mining explosion-proof three-phase squirrel-cage induction motor.
The magnetic starters used in underground coal mines in China are quite common, underground industrial and mining are complex at the present stage, stable and reliable operation and practicability of underground explosion-proof electrical equipment are more and more important along with continuous improvement of mine yield and automation level, and motors such as transportation winches and drainage pumps used in underground coal mines need to be controlled by the magnetic starters. The existing low-voltage electromagnetic starter can only be provided with small motors such as a transportation winch and a drainage pump, has single function and low practicability, and reduces the production efficiency. Therefore, it is necessary to provide a mining vacuum electromagnetic starter which has simple structure, large capacity, relatively small volume and increased combination of functional modes, and can be used as a single machine or a combined machine of a common switch and a double-speed switch.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome not enough that exists among the prior art, the technical problem that will solve is: the improvement of the hardware structure of the mining vacuum electromagnetic starting device is provided.
In order to solve the technical problem, the utility model discloses a technical scheme be: a mining vacuum electromagnetic starting device comprises a shell, wherein the top of the shell is provided with a wire inlet end, a first wire outlet end and a second wire outlet end;
a main cavity and a wiring cavity are arranged inside the shell, a door cover is arranged on the front surface of the main cavity, an emergency stop button, an isolating switch handle shaft and two anti-locks are arranged on the door cover, a locking mechanism is arranged between the emergency stop button and the isolating switch handle shaft, and a mechanical lock is formed among the isolating switch handle shaft, the two anti-locks and the door cover;
a cover plate is arranged on the front surface of the wiring cavity, and a travel switch is arranged between the cover plate and the wiring cavity and used for realizing power-off opening;
an electrical component and an isolating switch are arranged inside the main cavity, the electrical component comprises at least two contactors and a protector, and an electrical lock is formed between the contactor and the isolating switch through an emergency stop button;
a fork type wiring terminal is arranged in the wiring cavity, a wire inlet end of the isolating switch is connected with a lead wire and is connected with an external power cable through the fork type wiring terminal, and a wire outlet end of the isolating switch is connected with a fork type terminal in the main cavity through the lead wire;
the inside of protector is provided with microcontroller, microcontroller passes through the control end of wire connection two contactors, isolator's control end respectively.
The electric assembly further comprises a power supply control unit, a control transformer, a fuse, a relay, a resistance-capacitance absorber and a current transformer, wherein the relay and an auxiliary contact of the contactor form a leakage detection circuit, the current transformer is used for monitoring the large current of a circuit, and the protector is used for operating, analyzing and judging primary side data collected by the current transformer and the leakage detection circuit and outputting a signal to control the on-off of the contactor.
Two ends of the wiring cavity are provided with communicating joints, and the rubber gasket compresses the cable to realize explosion suppression through a compression nut or a compression flange.
The handle shaft of the isolating switch is connected with a handle, the handle is mechanically interlocked with the door cover through a locking rod, and the door cover can be opened only when the locking rod is pushed into a breaking position of the isolating switch.
The door cover adopts a translation type quick door opening mechanism, so that the door cover can be opened and closed conveniently.
The contactor is connected with the motor through a lead.
The utility model discloses beneficial effect for prior art possesses does: the utility model provides a vacuum electromagnetic starting device increases original single contactor to two contactors, and two contactors carry two motor loads respectively, and a protector can control two contactors simultaneously, and under the condition that does not influence the product function, adopts simple control loop, realizes the multipurpose of switch, can be used as the single machine and the joint control of common switch, and can be used as the single machine and the joint control of double-speed switch, and is convenient for management and maintenance; the utility model discloses the door closure on the well starter device adopts the translation formula mechanism of opening the door soon, the switch of the door closure of being convenient for to the door closure does not sink, has effectively avoided the damage that smooth surface between door closure and the casing body caused, thereby has guaranteed the leakproofness and the security of switch, has improved the life of starter switch.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a front view of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a left side view of the present invention;
fig. 4 is a right side view of the present invention.
In the figure: the emergency stop device comprises an emergency stop button 1, an isolating switch handle shaft 2, two anti-locking devices 3, a wire inlet end 4, a first wire outlet end 5, a second wire outlet end 6, a door cover 7, a control transformer 8, a fuse 9, a relay 10, a resistance-capacitance absorber 11, a locking mechanism 12, an isolating switch 13, a protector 14, a contactor 15, a current transformer 16, a fork type wiring terminal 17, a main cavity 18 and a wiring cavity 19.
Detailed Description
As shown in fig. 1 to 4, the utility model relates to a mining vacuum electromagnetic starter, which comprises a housing, wherein the top of the housing is provided with a wire inlet end 4, a first wire outlet end 5 and a second wire outlet end 6;
a main cavity 18 and a wiring cavity 19 are arranged inside the shell, a door cover 7 is arranged on the front side of the main cavity 18, an emergency stop button 1, an isolating switch handle shaft 2 and two anti-locks 3 are arranged on the door cover 7, a locking mechanism 12 is arranged between the emergency stop button 1 and the isolating switch handle shaft 2, and a mechanical lock is formed among the isolating switch handle shaft 2, the two anti-locks 3 and the door cover 7;
a cover plate is arranged on the front surface of the wiring cavity 19, and a travel switch is arranged between the cover plate and the wiring cavity 19 and used for realizing power-off opening;
an electrical component and an isolating switch 13 are arranged inside the main cavity 18, the electrical component comprises at least two contactors 15 and a protector 14, and an electrical lock is formed between the contactor 15 and the isolating switch 13 through the emergency stop button 1;
a fork type wiring terminal 17 is arranged in the wiring cavity 19, a wire inlet end of the isolating switch 13 is connected with an external power cable through the fork type wiring terminal 17, and a wire outlet end of the isolating switch 13 is connected with a fork type terminal in the main cavity 18 through a wire;
and a microcontroller is arranged in the protector 14 and is respectively connected with the control ends of the two contactors 15 and the control end of the isolating switch 13 through leads.
The electric assembly further comprises a power supply control unit, a control transformer 8, a fuse 9, a relay 10, a resistance-capacitance absorber 11 and a current transformer 16, wherein the relay 10 and an auxiliary contact of the contactor 15 form a leakage detection circuit, the current transformer 16 is used for monitoring the large current of a circuit, and the protector 14 is used for operating, analyzing and judging primary side data collected by the current transformer 16 and the leakage detection circuit and outputting a signal to control the on-off of the contactor 15.
Two ends of the wiring cavity 19 are provided with communicating joints, and the rubber gasket compresses the cable to realize explosion suppression through a compression nut or a compression flange.
The handle is connected to the isolating switch handle shaft 2 and mechanically interlocked with the door cover 7 through a locking rod, and the door cover 7 can be opened only when the locking rod is pushed into the breaking position of the isolating switch 13.
The door cover 7 adopts a translational quick door opening mechanism, so that the door cover can be opened and closed conveniently.
The contactor 15 is connected to the motor through a wire.
The utility model provides a vacuum electromagnetic starter for the device of mining flame proof and safe type multiloop vacuum electromagnetic starter practicality of essence. Comprises a shell and a body. The casing mainly includes: a wiring cavity 19, a main cavity 18, a cable lead-in device, a chassis and a locking machine 12; the body mainly comprises an isolating switch 13, a contactor 15, a fuse 9, a resistance-capacitance absorber 11, an aviation plug, a current transformer 16 and a control transformer 8. The upper cavity of the shell is a wiring cavity 19 for leading in a power cable and leading out a cable to the motor, a communicating joint is welded in the wiring cavity 19, and a gland nut or a gland flange plate is used for enabling a rubber gasket to compress the cable so as to meet the explosion-proof requirement; the lower cavity of the shell is a main cavity 18, and the control unit meets various underground protection functions. An electrical lock is arranged between the on-off of the contactor 15 and the isolating switch 13, a handle is arranged on the right side of the outer shell of the contactor 15 and used for breaking and closing the isolating switch handle 2 or reversing the isolating switch handle 2, and when the isolating switch 13 is in a breaking position, the contactor 15 cannot be switched on; the emergency stop button 1 and the isolating switch 13 are mechanically interlocked, the isolating switch handle 2 can only rotate under the condition that the emergency stop button 1 contactor 15 is pressed to open the brake, the isolating switch 13 is prevented from power failure under load, the door cover 7 is interlocked with the handle of the isolating switch 13 through the locking rod, the door cover 7 cannot be opened when the isolating switch 13 is closed, the door cover 7 can only be opened when the locking rod retreats into the breaking position of the isolating switch 13, and the stroke switch is arranged between the wiring cavity 19 and the cover plate of the wiring cavity to meet the requirement of power-off and cover opening.
The utility model mainly comprises a shell, an electrical component and an isolating switch 13 which are arranged in the shell, wherein the electrical component comprises a power supply control unit, a control transformer 8, a contactor 15, a current transformer 16, a relay 10, a fuse 9 and a resistance-capacitance absorber 11; the power supply control unit meets various underground protection functions, the contactor 15 ensures the connection and disconnection of the circuit, the current transformer 16 is responsible for monitoring the large current of the circuit, the contactor 15 and the auxiliary contact of the relay 10 form a leakage detection loop, and when the insulation resistance of the main loop to the ground is lower than a specified value, leakage locking is carried out.
A wiring cavity 19 and a main cavity 18 are arranged inside the shell; the front surface of the main cavity 18 is provided with a door cover 7, the front surface of the wiring cavity 19 is provided with a cover plate, and the electric assembly is arranged in the main cavity 18; install fork binding post 17 in wiring chamber 19, isolator 13 installs in main cavity 18, fork binding post 17 connects outside power cable, outside power cable gets into wiring chamber 19 and connects isolator 13, isolator 13's the fork terminal of being qualified for the next round of competitions in the connection main cavity 18, install travel switch in wiring chamber 19 in addition, introduce higher level switch with the node, utilize the compressing tightly of wiring chamber apron and loosen state control travel switch's node break-make, thereby realize the function of the outage of uncapping.
An emergency stop button 1 is also arranged in the main cavity 18, and the on-off of the emergency stop button 1 controls the on-off of the contactor 15. A locking mechanism 12 is arranged between the emergency stop button 1 and the isolating switch handle shaft 2, the rotating power failure of the isolating switch handle shaft 2 can be realized only by pressing the emergency stop button 1 to open the contactor 15, and the power failure of the isolating switch 13 with load is avoided; mechanical locking is arranged between the isolating switch handle shaft 2, the two anti-locking devices 3 and the door cover 7, the handle of the isolating switch 13 rotates after the contactor 15 is powered off, the two anti-locking devices 3 can rotate, the door cover is opened, and the requirement that the main cavity 18 is powered off and opened is really met.
There are terminal, nine core binding post in the wiring chamber 19, and fork formula binding post 17 connection contactor 15 leading-out terminal draws electric power through the cable entry, and the power-off principle of uncapping is similar with the inlet wire in wiring chamber 19, and when opening wiring chamber 19, 15 outage of contact in the main cavity guarantee the power-off of wiring chamber.
The main cavity 18 is internally provided with a power supply control unit, a control transformer 8, a contactor 15, a current transformer 16, a relay 10, a fuse 9, a resistance-capacitance absorber 11 and a protector 14. The protector 14 mainly calculates, analyzes and judges primary side data collected by the current transformer 16 and the leakage detection circuit, and outputs a signal to control the on-off of the contactor 15; the contactor 15 mainly realizes the on-off of the main circuit by receiving the signal action of the protector 14 and the secondary circuit; an electrical lock is established between the contactor 15 and the isolating switch 13 through the emergency stop button 1.
The wiring cavity 19 comprises a first wire outlet end 5 and a second contact end 6, the wire outlet side-fork type wiring terminal is connected with an external power cable, and the motor is driven by the cable, so that the dual-speed switch can be used as a single machine and a combined machine of a common switch, can also be used as a single machine and a combined machine of a dual-speed switch, and is convenient to manage and maintain.
The epicoele is wiring chamber 19, and the lower chamber is main cavity 18, the utility model discloses an output cable and control cable's connection all adopts the pressure disk introducing device. The control unit meets various underground protection functions, the contactor 15 frequently starts and controls the alternating current motor, the isolating switch 13 is responsible for connecting and disconnecting an isolating power supply and reversing operation, the connection and disconnection of the circuit of the contactor 15 are ensured, and the current transformer 16 collects the current of the circuit; main cavity 18 openly is the door closure 7 that plane tang translation formula opened the door soon, is equipped with reliable mechanical interlocking between door closure 7 and isolator 13, and isolator 13's operation is equipped with electrical interlocking with contactor 15 simultaneously, opens the door under the outage state and can guarantee that any components and parts all belong to the power-off state, avoids workman low-voltage electric shock.
The utility model increases the shell and widens, the buttons are increased, and the outgoing line loop is increased to 2 loops; the single contactor is increased to be a double contactor in the electrical control, the mode combination in the function is increased, the single contactor can be used as a single machine and a joint control of a common switch, and can also be used as a single machine and an online machine of a double-speed switch. A travel switch and a wiring terminal are installed in the wiring cavity 19, the isolating switch 13 is installed in the main cavity, the incoming wire of the isolating switch 13 is connected with the wiring terminal of the wiring cavity 19, the outgoing wire is connected with a fork terminal in the wiring cavity 19, and the electrical component is arranged in the main cavity; the utility model discloses the practicality design satisfies the requirement of uncapping of outage, can guarantee workman's safety inspection equipment.
About the utility model discloses what the concrete structure need explain, the utility model discloses a each part module connection relation each other is definite, realizable, except that the special explanation in the embodiment, its specific connection relation can bring corresponding technological effect to based on do not rely on under the prerequisite of corresponding software program execution, solve the utility model provides a technical problem, the utility model provides a model, the connection mode of parts, module, specific components and parts that appear all belong to the prior art such as the published patent that technical staff can acquire before the application day, published journal paper, or common general knowledge, need not to describe in detail for the technical scheme that the present case provided is clear, complete, realizable, and can be according to this technical means or obtain corresponding entity product.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. A mining vacuum electromagnetic starting device comprises a shell, and is characterized in that: the top of the shell is provided with a wire inlet end (4), a first wire outlet end (5) and a second wire outlet end (6);
a main cavity (18) and a wiring cavity (19) are arranged inside the shell, a door cover (7) is arranged on the front surface of the main cavity (18), an emergency stop button (1), an isolating switch handle shaft (2) and two anti-locks (3) are arranged on the door cover (7), a locking mechanism (12) is arranged between the emergency stop button (1) and the isolating switch handle shaft (2), and a mechanical lock is formed among the isolating switch handle shaft (2), the two anti-locks (3) and the door cover (7);
a cover plate is arranged on the front surface of the wiring cavity (19), and a travel switch is arranged between the cover plate and the wiring cavity (19) and used for realizing power-off opening;
an electrical component and an isolating switch (13) are arranged inside the main cavity (18), the electrical component comprises at least two contactors (15) and a protector (14), and an electrical lock is formed between the contactor (15) and the isolating switch (13) through an emergency stop button (1);
a fork type wiring terminal (17) is arranged in the wiring cavity (19), a wire inlet end of the isolating switch (13) is connected with an external power cable through the fork type wiring terminal (17), and a wire outlet end of the isolating switch (13) is connected with a fork type terminal in the main cavity (18) through a wire;
the inside of protector (14) is provided with microcontroller, microcontroller passes through the control end of wire connection two contactors (15), the control end of isolator (13) respectively.
2. The mining vacuum electromagnetic starting device according to claim 1, characterized in that: the electric assembly further comprises a power supply control unit, a control transformer (8), a fuse (9), a relay (10), a resistance-capacitance absorber (11) and a current transformer (16), auxiliary contacts of the relay (10) and a contactor (15) form a leakage detection loop, the current transformer (16) is used for monitoring large current of a circuit, and the protector (14) is used for operating, analyzing and judging primary side data collected by the current transformer (16) and the leakage detection loop and outputting a signal to control the on-off of the contactor (15).
3. The mining vacuum electromagnetic starting device according to claim 2, characterized in that: two ends of the wiring cavity (19) are provided with communicating joints, and the rubber gasket compresses the cable to realize explosion suppression through a compression nut or a compression flange.
4. A mining vacuum electromagnetic starting device according to claim 3, characterized in that: the isolating switch is characterized in that a handle is connected to the isolating switch handle shaft (2), the handle is mechanically interlocked with the door cover (7) through a locking rod, and the door cover (7) can be opened only when the locking rod is pushed into a breaking position of the isolating switch (13).
5. The mining vacuum electromagnetic starting device according to claim 4, characterized in that: the door cover (7) adopts a translation type quick door opening mechanism, so that the door cover can be opened and closed conveniently.
6. The mining vacuum electromagnetic starting device according to claim 5, characterized in that: the contactor (15) is connected with the motor through a lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021631438.7U CN213637550U (en) | 2020-08-07 | 2020-08-07 | Mining vacuum electromagnetic starting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021631438.7U CN213637550U (en) | 2020-08-07 | 2020-08-07 | Mining vacuum electromagnetic starting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213637550U true CN213637550U (en) | 2021-07-06 |
Family
ID=76643882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021631438.7U Active CN213637550U (en) | 2020-08-07 | 2020-08-07 | Mining vacuum electromagnetic starting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213637550U (en) |
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2020
- 2020-08-07 CN CN202021631438.7U patent/CN213637550U/en active Active
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