CN210690730U

CN210690730U - Mining online multi-loop electrical insulation data testing device

Info

Publication number: CN210690730U
Application number: CN201921431191.1U
Authority: CN
Inventors: 王文胜; 郑云龙; 张世丽; 白露; 王新民
Original assignee: Changcun Coal Mining of Shanxi Luan Environmental Energy Development Co Ltd
Current assignee: Changcun Coal Mining of Shanxi Luan Environmental Energy Development Co Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-06-05
Anticipated expiration: 2029-08-30

Abstract

The utility model relates to the technical field of testing devices, and discloses a mining online multi-loop electrical insulation data testing device, which solves the problem of opening the insulation data of a cavity testing cable and a motor of an explosion-proof switch or a wiring cavity, and has the disadvantages of time and labor waste and complicated working procedures; secondly, the external moist air and coal dust enter the cavity to cause damage to the electrical components; thirdly, the explosion-proof surface can lose the explosion-proof performance; fourthly, after each test, the safety risk of generating electric sparks during discharging is solved, and the device comprises an explosion-proof shell, wherein a partition plate is fixedly arranged in the middle of the explosion-proof shell; the utility model can complete the operation of the electric locking switch at the outside by matching the arranged pull ring and the second connecting rod, and has the advantages of time and labor saving and simple working procedure; secondly, the electric elements cannot be damaged, and thirdly, the explosion-proof surface cannot lose the explosion-proof performance; fourthly, after each test, the safety risk of electric sparks cannot be generated when the discharge is carried out.

Description

Mining online multi-loop electrical insulation data testing device

Technical Field

The utility model belongs to the technical field of testing arrangement, specifically be a mining online multiloop electrical insulation data testing arrangement.

Background

The cable and motor insulation is greatly influenced by the severe environment of the underground coal mining working face of the coal mine, the electromechanical equipment is also increasingly heavy along with the improvement of the production capacity and efficiency of the coal mine, the motor works in a limit state for a long time, even works in an overload state for a long time, the cable and motor insulation is in a constantly changing state, and the cable and motor insulation condition needs to be frequently or even daily grasped in order to know the cable and motor insulation descending information in advance.

The insulation testing tool (megohmmeter is also called a megohmmeter) is manually used to open the cavity of the explosion-proof switch or the wiring cavity to test the insulation data of the cable and the motor, firstly, when the cavity is opened, time and labor are wasted, and the process is complicated; secondly, the cavity is opened, and the external humid air and coal dust enter the cavity to cause damage to the electrical components; thirdly, the explosion-proof surface can lose the explosion-proof performance; fourthly, after each test, the safety risk of generating electric sparks is caused when the discharge is carried out.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a mining online multi-loop electrical insulation data testing device, which effectively solves the problem of opening the insulation data of the cavity testing cable and the motor of an explosion-proof switch or a wiring cavity, and firstly, when the cavity is opened, time and labor are wasted, and the process is complicated; secondly, the external moist air and coal dust enter the cavity to cause damage to the electrical components; thirdly, the explosion-proof surface can lose the explosion-proof performance; fourthly, after each test, the safety risk of generating electric sparks is caused when the discharge is carried out.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a mining online multiloop electrical insulation data testing arrangement, including explosion-proof housing, explosion-proof housing's middle part fixed mounting has the baffle, wiring cavity and component cavity are separated into through the baffle in explosion-proof housing's inside, the middle part fixed mounting of wiring cavity has ten return cables, the both sides of wiring cavity fixed mounting respectively has shutting control cable interface and shutting control cable terminal, the bottom fixed mounting of component cavity has rotation type change over switch, the inner wall fixed mounting at component cavity middle part has safety isolation device and electric shutting switch, the inner wall fixed mounting at component cavity top has the electron megger.

Preferably, the inner wall of one side of the element cavity is fixedly provided with a discharging two-position switch and a loop change-over switch, the outer wall of one side of the element cavity is provided with a first round hole and a second round hole, a rotary button of the discharging two-position switch is fixedly connected with the first rotating rod through a first connecting rod, and a rotary button of the loop change-over switch is fixedly connected with the second rotating rod through a second connecting rod.

Preferably, the handle of the electric locking switch is rotatably connected with one end of a first connecting rod, the other end of the first connecting rod is rotatably connected with one end of a second connecting rod, the other end of the second connecting rod is rotatably connected with the inner wall of the element cavity, the joint of the first connecting rod and the second connecting rod is fixedly connected with one end of a pull rod, and the top end of the pull rod is fixedly connected with the pull ring.

Preferably, the middle part of the first connecting rod and the middle part of the second connecting rod are fixedly connected through a telescopic spring, and the pull ring penetrates through the inner wall of the element cavity and is arranged at the top end of the explosion-proof shell.

Preferably, the outer wall of one side of the explosion-proof shell is hinged with a box door, the top of the box door is provided with an observation window, and the observation window is arranged corresponding to the electronic megohmmeter.

Preferably, the electronic megohmmeter is matched with models of 1000 volts or 5000 volts and the like.

Compared with the prior art, the beneficial effects of the utility model are that:

1) in the work, through the matching use of the arranged pull ring, the pull rod, the first connecting rod, the second connecting rod and the like, the pull ring drives the connecting part of the first connecting rod and the second connecting rod to move upwards by driving the pull rod, so that one end of the first connecting rod pushes the handle of the electric locking switch to move; secondly, the door of the box does not need to be opened, and external humid air and coal dust cannot enter the explosion-proof shell, so that the electrical elements cannot be damaged;

2) in the work, through the matched use of the arranged electric locking switch, the safety isolation device, the loop transfer switch, the electronic megohmmeter and the like, the two-position discharge switch can respectively test the performance of the electronic megohmmeter in the underground before each test data, so that the good performance of the electronic megohmmeter is ensured; the circuit change-over switch is provided with a neutral gear, each gear corresponds to a tested circuit, when the circuit needs to be tested, the gear is rotated to a corresponding position, the circuit change-over switch is switched on the tested circuit, and the explosion-proof surface cannot lose the explosion-proof performance because the operation is finished outside; and after each test, the safety risk of electric sparks can not be generated when the discharge is carried out.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic diagram of the electrical principle structure of the present invention;

in the figure: 1. an explosion-proof housing; 2. a partition plate; 3. a loop cable; 4. locking a control cable interface; 5. latching a control cable terminal; 6. a rotary type switch; 7. a safety isolation device; 8. an electrical latching switch; 9. a first link; 10. a second link; 11. an electronic megger; 12. a discharging two-position switch; 13. a loop transfer switch; 14. a box door; 15. and (4) an observation window.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the first embodiment, as shown in fig. 1-3, the explosion-proof housing 1 of the present invention has good explosion-proof performance, a partition 2 is fixedly installed in the middle of the explosion-proof housing 1, the interior of the explosion-proof housing 1 is separated into a wiring cavity and a component cavity by the partition 2, ten loop cables 3 are fixedly installed in the middle of the wiring cavity, a locking control cable interface 4 and a locking control cable terminal 5 are respectively fixedly installed on two sides of the wiring cavity, a rotary switch 6 is fixedly installed at the bottom of the component cavity, which can satisfy the alternate connection or disconnection or ground discharge between each loop cable 3 and the electronic megohmmeter 11, a safety isolation device 7 and an electrical locking switch 8 are fixedly installed on the inner wall in the middle of the component cavity, the safety isolation device 7 can completely disconnect the tested loop cable 3 from the electrical components and the electronic megohmmeter 11 inside the device, and an electronic megohmmeter 11 is fixedly arranged on the inner wall of the top of the component cavity, so that the insulation test is facilitated.

Second embodiment, on the basis of first embodiment, the inner wall fixed mounting of component cavity one side has two switches 12 and the return circuit change over switch 13 of discharging, and first round hole and second round hole have been seted up to the outer wall of component cavity one side, and the rotary button of two switches 12 of discharging passes through first connecting rod and first bull stick fixed connection, and the rotary button of return circuit change over switch 13 passes through second connecting rod and second bull stick fixed connection, is convenient for test different return circuit cables 3 according to actual needs.

In the third embodiment, on the basis of the first embodiment, the handle of the electrical locking switch 8 is rotatably connected to one end of the first link 9, the other end of the first link 9 is rotatably connected to one end of the second link 10, the other end of the second link 10 is rotatably connected to the inner wall of the cavity of the component, the joint of the first link 9 and the second link 10 is fixedly connected to one end of the pull rod, and the top end of the pull rod is fixedly connected to the pull ring, so that the electrical locking switch 8 can be opened or closed externally.

In the fourth embodiment, on the basis of the third embodiment, the middle part of the first connecting rod 9 and the middle part of the second connecting rod 10 are fixedly connected through a telescopic spring, and the pull ring penetrates through the inner wall of the element cavity and is arranged at the top end of the explosion-proof housing 1, so that a certain tension can be ensured between the first connecting rod 9 and the second connecting rod 10.

Fifth embodiment, on the basis of the first embodiment, the outer wall of one side of the explosion-proof housing 1 is hinged with a box door 14, the top of the box door 14 is provided with an observation window 15, and the observation window 15 is arranged corresponding to the electronic megohmmeter 11, so that a user can conveniently observe the indication number of the electronic megohmmeter 11.

In a sixth embodiment, on the basis of the first embodiment, the electronic megohmmeter 11 is selected to be 1000 v or 2500 v, and the matched meter can be selected according to actual needs.

The working principle is as follows: the number of the loop cables 3 can be set according to actual needs, during operation, the explosion-proof shell 1 meets the standard requirements of mining explosion-proof electrical equipment, when the electrical latching switch 8 needs to be started, the pull ring is pulled, the pull ring drives the connecting part of the first connecting rod 9 and the second connecting rod 10 to move upwards by driving the pull rod, so that one end of the first connecting rod 9 pushes the handle of the electrical latching switch 8 to move, and a certain tension can be ensured between the first connecting rod 9 and the second connecting rod 10 by fixedly connecting the middle part of the first connecting rod 9 and the middle part of the second connecting rod 10 through the telescopic spring, so that the operation on the electrical latching switch 8 can be finished outside, the operation is convenient, and meanwhile, the first rotating rod or the second rotating rod can be used for opening or closing the corresponding discharge two-position switch 12 or the loop change-over switch 13 which is fixedly connected to; secondly, the box door 14 does not need to be opened, external humid air and coal dust cannot enter the explosion-proof shell 1, so that no damage can be caused to electrical elements, wherein the electrical latching switch 8 and the safety isolation device 7 have an interconnection interaction relationship and are connected in series in a control circuit of a tested cable and a superior feed switch of the motor through cables, when the safety isolation device 7 is not at an OFF position, the electrical latching switch 8 is in an OFF state, the superior feed switch of the tested loop is cut OFF and latched and cannot be switched ON for power supply, wherein the two-position discharging switch 12 is arranged at an ON position (ON) or an OFF position (OFF) before testing data every time, the performance of the electronic megohmmeter 11 is tested underground, and the good performance of the electronic megohmmeter 11 is ensured; after the loop is tested each time, the loop is set at a switch-ON position (ON) to discharge the tested loop, each gear of the loop change-over switch 13 corresponds to one tested loop except a neutral gear, when the loop needs to be tested, the gear is rotated to the corresponding position, the loop change-over switch 13 switches ON the tested loop, and the explosion-proof surface cannot lose the explosion-proof performance because the operation is finished outside; and after each test, the safety risk of electric sparks can not be generated when the discharge is carried out.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mining online multiloop electrical insulation data testing arrangement, includes explosion-proof casing (1), its characterized in that: the middle part fixed mounting of explosion-proof casing (1) has baffle (2), wiring cavity and component cavity are separated into through baffle (2) to the inside of explosion-proof casing (1), the middle part fixed mounting of wiring cavity has ten return cables (3), the both sides of wiring cavity fixed mounting respectively has shutting control cable interface (4) and shutting control cable terminal (5), the bottom fixed mounting of component cavity has rotation type change over switch (6), the inner wall fixed mounting at component cavity middle part has safety isolation device (7) and electric shutting switch (8), the inner wall fixed mounting at component cavity top has electron megohmmeter (11).

2. The mining online multi-loop electrical insulation data testing device according to claim 1, characterized in that: the inner wall fixed mounting of component cavity one side has two switches (12) and return circuit change over switch (13) of discharging, and first round hole and second round hole have been seted up to the outer wall of component cavity one side, and the rotary button of two switches (12) of discharging passes through first connecting rod and first bull stick fixed connection, and the rotary button of return circuit change over switch (13) passes through second connecting rod and second bull stick fixed connection.

3. The mining online multi-loop electrical insulation data testing device according to claim 1, characterized in that: the handle of the electric locking switch (8) is rotatably connected with one end of a first connecting rod (9), the other end of the first connecting rod (9) is rotatably connected with one end of a second connecting rod (10), the other end of the second connecting rod (10) is rotatably connected with the inner wall of the element cavity, the joint of the first connecting rod (9) and the second connecting rod (10) is fixedly connected with one end of a pull rod, and the top end of the pull rod is fixedly connected with the pull ring.

4. The mining online multi-loop electrical insulation data testing device according to claim 3, characterized in that: the middle part of the first connecting rod (9) is fixedly connected with the middle part of the second connecting rod (10) through a telescopic spring, and the pull ring penetrates through the inner wall of the element cavity and is arranged at the top end of the explosion-proof shell (1).

5. The mining online multi-loop electrical insulation data testing device according to claim 1, characterized in that: the outer wall of one side of the explosion-proof shell (1) is hinged with a box door (14), an observation window (15) is installed at the top of the box door (14), and the observation window (15) is arranged corresponding to the electronic megger (11).

6. The mining online multi-loop electrical insulation data testing device according to claim 1, characterized in that: the electronic megohmmeter (11) is matched with models of 1000 volts or 2500 volts and the like.