CN215647843U - Explosion-proof PLC switch board of mining TBM of compact - Google Patents

Abstract

The utility model relates to a compact type mining TBM explosion-proof PLC control cabinet. The utility model provides an explosion-proof PLC switch board of mining TBM of compact, includes: the front side of the device cavity is provided with an opening, and a cabinet door is arranged at the opening; the component mounting base body is arranged in the component cavity and used for mounting electric components; the component mounting base includes: the lateral installation base body is vertical to the closed cabinet door and is positioned on at least one side of the left and right directions of the device cavity; a rear-side mounting base disposed at a rear side of the device cavity; the lateral installation base body and the rear installation base body are provided with the electrical components. According to the scheme, the problems of large quantity, high cost and low production efficiency of the existing compact type mining TBM explosion-proof PLC control cabinet in use can be solved.

Description

Explosion-proof PLC switch board of mining TBM of compact

Technical Field

The utility model relates to a compact type mining TBM explosion-proof PLC control cabinet.

Background

The mining TBM is generally small in diameter, the available space of the whole machine is small, but a large number of sensors and electromagnetic valves are needed in a complex structure, so that the corresponding mining TBM explosion-proof PLC control cabinet needs a large number of wiring ports.

For a mining TBM electrical system, explosion-proof standards are required to be met, so that the safety standard obtaining period of electrical equipment is long. The mining TBM electrical system generally comprises a mining TBM explosion-proof PLC control cabinet, an explosion-proof transformer, a frequency conversion cabinet, a starting cabinet, a lighting cabinet and the like. Compared with a mining TBM explosion-proof PLC control cabinet, the explosion-proof transformer, the frequency conversion cabinet, the starting cabinet, the lighting cabinet and other equipment can basically realize standardized application, and can be used for several years once evidence is obtained; however; due to the control complexity of the mining TBMs, each mining TBM needs to be matched with different control systems according to the actual geological environment.

The Chinese patent document with the publication number of CN109917745A discloses a universal type mining explosion-proof PLC control cabinet for a shield machine, finds common points of control systems of various types of shield machines through analysis of the shield machines, redesigns and verifies safety standards of the PLC control cabinet which cannot be directly purchased in the market, independently designs a set of universal type mining explosion-proof PLC control cabinet for the shield machine, and can adapt to the field control and data acquisition functions of the 3-15 m mining explosion-proof shield machine. The appearance and the internal element layout of the PLC control cabinet required by the shield tunneling machine with different diameters and functions are completely the same, and the difference is the number of the control cabinets.

However, under the condition of excessively complex control requirements, if the structure of the cabinet body is not changed, the quantity of the explosion-proof PLC control cabinets is large, and larger pressure is caused on the original explosion-proof TBM complete machine with smaller available space; meanwhile, the more the number of the explosion-proof PLC control cabinets is, the more a series of problems such as difficult wiring, high failure rate, cost increase and the like are caused. And if the cabinet body structure is changed, the size of the cabinet body is adjusted, and the parts are distributed in the cabinet again, the whole cabinet needs to be proved again, so that the period is long, the cost is high, and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a compact mining TBM explosion-proof PLC control cabinet, which solves the problems of large quantity of requirements, high cost and low production efficiency when the existing compact mining TBM explosion-proof PLC control cabinet is used.

The utility model adopts the following technical scheme:

the utility model provides an explosion-proof PLC switch board of mining TBM of compact, includes:

the front side of the device cavity is provided with an opening, and a cabinet door is arranged at the opening;

the component mounting base body is arranged in the component cavity and used for mounting electric components;

the component mounting base includes:

the lateral installation base body is vertical to the closed cabinet door and is positioned on at least one side of the left and right directions of the device cavity;

a rear-side mounting base disposed at a rear side of the device cavity;

the lateral installation base body and the rear installation base body are provided with the electrical components.

Has the advantages that: by adopting the technical scheme, the component mounting base body comprises the lateral mounting base body and the rear mounting base body, and more electrical components can be mounted, so that the space in the component cavity can be fully utilized, more electrical components can be created for reservation, the universality is improved, the problem of large quantity of demands of the mining TBM explosion-proof PLC control cabinet in a complex control environment is favorably solved, the authentication times are reduced, the cost is reduced, and the production efficiency is improved.

As a preferred technical scheme: the electrical component includes an intermediate relay, at least a portion of which is disposed on the lateral mounting base.

Has the advantages that: by adopting the technical scheme, the intermediate relay with low failure rate and low detection rate is placed on the lateral installation base body, and the debugging and monitoring of the electric components on the rear side installation base body are not influenced while the space in the cabinet is fully utilized.

As a preferred technical scheme: the intermediate relay comprises a reserve relay.

Has the advantages that: by adopting the technical scheme, the requirement of large using amount of the intermediate relay can be met, and the universality is favorably improved.

As a preferred technical scheme: the lateral installation base body is a relay installation base body, and a plurality of rows of the intermediate relays are installed from the top to the bottom of the relay installation base body.

Has the advantages that: by adopting the technical scheme, the centralized arrangement of the intermediate relays can be realized, and the structure is neat.

As a preferred technical scheme: the lateral mounting base is a lateral mounting plate.

Has the advantages that: adopt above-mentioned technical scheme can conveniently assemble and maintain.

As a preferred technical scheme: the electrical components comprise a safety grid, a safety relay, a valve amplifier and a fuse terminal;

the safety barrier, safety relay, valve amplifier and fuse terminal are disposed on the rear mounting substrate.

Has the advantages that: by adopting the technical scheme, the centralized arrangement of the corresponding electrical components can be realized, and the wiring is convenient.

As a preferred technical scheme: the electrical component comprises a PLC module, and the PLC module is arranged above the rear side installation base body.

Has the advantages that: by adopting the technical scheme, the space in the device cavity can be effectively utilized, and the PLC module can be conveniently installed.

As a preferred technical scheme: the safety barrier on the rear side installation base body comprises a reserved safety barrier, the valve amplifier on the rear side installation base body comprises a reserved amplifier, and the fuse terminal on the rear side installation base body comprises a reserved fuse terminal.

Has the advantages that: by adopting the technical scheme, the requirement of large using amount of corresponding electrical components can be met, and the universality is favorably improved.

As a preferred technical scheme: the component mounting base body also comprises a front mounting base body which is arranged on the cabinet door or is formed by the cabinet door; and the front mounting base body is provided with an optical transceiver, a gateway, a switching power supply, a circuit breaker and a filter.

Has the advantages that: adopt above-mentioned technical scheme can further improve space utilization, can also avoid having too much connecting wire between cabinet door and the device chamber.

As a preferred technical scheme: the top of the device cavity is provided with a wiring cavity, and the side wall of the wiring cavity is provided with a strong current cable lead-in device and a weak current cable lead-in device;

the wiring cavity is isolated from the device cavity, a multi-core glue-pouring wall-penetrating terminal and a nine-core wall-penetrating terminal are arranged in the wiring cavity, and an electric passage is formed between the wiring cavity and the device cavity by the multi-core glue-pouring wall-penetrating terminal and the nine-core wall-penetrating terminal;

the wiring cavity is further provided with a wiring terminal strip, and the wiring terminal strip corresponds to each multi-core glue filling wall penetrating terminal and the nine-core wall penetrating terminal respectively.

Has the advantages that: adopt above-mentioned technical scheme, set up binding post row and can correspond respectively with each multicore encapsulating wall-penetrating terminal and nine core wall-penetrating terminals for outside multicore line can insert binding post row in proper order regularly, improves the efficiency of cabinet external connection greatly. Can reach a large amount of control demands and can guarantee again to walk the line neatly, prevent that wiring intracavity wiring is in disorder to reduce the risk of producing the spark in the high gas mine.

Drawings

FIG. 1 is a front view of a compact mining TBM explosion-proof PLC control cabinet according to the utility model;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a left side cross-sectional view of FIG. 1;

FIG. 4 is a top view of the internal structure of the wiring cavity of FIG. 1;

FIG. 5 is a schematic diagram of the arrangement of the electrical components on the back side of the device cavity;

FIG. 6 is a schematic diagram of the arrangement of electrical components laterally within the device cavity;

FIG. 7 is a schematic diagram of the arrangement of electrical components on the front side of the device cavity;

FIG. 8 is a perspective view of the TBM explosion-proof PLC control cabinet of FIG. 1 with the cabinet door removed;

FIG. 9 is a diagram of the butt joint and the construction of key components and external components in a compact type mining TBM explosion-proof PLC control cabinet;

FIG. 10 is an application architecture diagram of a compact mining TBM explosion-proof PLC control cabinet in a corresponding explosion-proof TBM;

the names of the components corresponding to the corresponding reference numerals in the drawings are: 1. a weak current cable lead-in device; 2. a strong electric cable lead-in device; 3. a wiring cavity housing; 4. switching on and off the label; 5. a changeover switch device; 6. an explosion-proof PLC control cabinet nameplate; 7. a button label; 8. a button lever; 9. an explosion-proof label; 10. a base; 11. an external grounding bolt; 12. a connecting bolt; 13. a door handle; 14. a touch screen; 15. coal safety label; 16. an upper end cover; 17. an internal ground bolt; 18. a cabinet door button; 19. a wiring cavity; 20. a device cavity; 21. a communication adapter plate; 22. a six-core wiring terminal; 23. a fiber coupler; 24. a network cable wiring port; 25. double-layer wiring terminal rows; 26. a nine-core through-wall terminal; 27. a power supply board; 28. a power supply wiring terminal; 29. a multi-core glue pouring wall-through terminal; 30. a double-layer terminal signboard; 31. a branching terminal; 32. an intermediate relay; 33. a wire slot; 34. laterally mounting a substrate; 35. a wiring terminal; 36. a guide rail; 37. a PLC module; 38. a safety barrier; 39. an intermediate relay; 40. a fuse terminal; 41. an intrinsically safe power supply; 42. a valve amplifier; 43. a base body is arranged at the rear side; 44. a rotational speed monitor; 45. a safety relay; 47. an optical transmitter and receiver; 48. a gateway; 49. a switching power supply; 50. a circuit breaker; 51. and a filter.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, which may be present in the embodiments of the present invention, are 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. Without further limitation, the statement that "comprises an … …" is intended to indicate that there are additional elements of the same process, method, article, or apparatus that comprise the element.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

The present invention will be described in further detail with reference to examples.

The embodiment of the utility model relates to a compact mining TBM explosion-proof PLC control cabinet, which comprises the following steps:

the compact type mining TBM explosion-proof PLC control cabinet is shown in figures 1, 2 and 3 and comprises a shell, a cabinet door and a base 10. The shell comprises a wiring cavity shell 3 and a device cavity shell, the inner cavity of the shell is divided into an upper part and a lower part, the upper part is a wiring cavity 19, and the lower part is a device cavity 20. The upper part of the wiring cavity 19 is provided with an opening, and an upper end cover 16 is fixed at the opening through a bolt; referring to fig. 1 to 4, a weak current cable lead-in device 1 is provided on the front and rear side surfaces of a wiring chamber housing 3, a strong current cable lead-in device 2 is provided on the left and right side surfaces, and a changeover switch device 5 and an on-off sign 4 are provided in the middle in the up-down direction on the right side. The front side of the device cavity 20 is provided with a lateral opening at which a cabinet door is provided. In order to enable readers to understand the structure of the compact mining TBM explosion-proof PLC control cabinet more conveniently, the side, provided with the cabinet door, of the compact mining TBM explosion-proof PLC control cabinet is taken as the front side, the side opposite to the cabinet door is taken as the rear side, correspondingly, the left side is the left side of the visual angle in fig. 1, and the right side is the right side of the visual angle in fig. 2.

As shown in fig. 1, the front of the cabinet door is provided with a compact mining TBM explosion-proof PLC control cabinet nameplate 6, a button label 7, a button rod 8, an explosion-proof label 9, and a coal safety label 15, and the front part is provided with a touch screen 14 for human-computer interaction. The right side of the PLC control cabinet is provided with a door handle 13, and the periphery of the PLC control cabinet is fixed by a connecting bolt 12. A base 10 of a compact type mining TBM explosion-proof PLC control cabinet is made into a sliding shoe form, so that the movement under a mine is facilitated, an outer grounding bolt 11 and a grounding label are arranged on the sliding shoe, the grounding safety of a shell is ensured, and a warning effect can be achieved.

As shown in fig. 2 and 8, a side mounting base 34 and a rear mounting base 43 are provided in the device cavity 20; the lateral mounting base 34 is perpendicular to the cabinet door in the closed state and is located on the left side of the device cavity 20; the rear mounting substrate 43 is disposed on a side of the device chamber 20 away from the cabinet door, i.e., a rear side of the device chamber 20. The cabinet door forms a front mounting base body, and the front mounting base body, the lateral mounting base body 34 and the rear mounting base body 43 form component mounting base bodies, and are respectively provided with an electrical component. As shown in fig. 1 and 3, the device cavity 20 is filled with electrical components, and these electrical components constitute a main body of the entire compact mining TBM explosion-proof PLC control cabinet, which is a key for ensuring safe operation of the compact mining TBM explosion-proof PLC control cabinet in a gas and coal dust environment. The side mount base 34, the rear mount base 43, and the front mount base enable the electrical components to cover almost all of the available space within the device cavity 20.

Specifically, the lateral mounting base 34 is a lateral mounting plate that is spaced from the left side cavity wall of the device cavity 20 for ease of assembly and maintenance. As shown in fig. 6, a plurality of mounting rails 36 and wire grooves 33 are distributed on the side surface of the lateral mounting base 34 in the vertical direction, and the wire grooves 33 are also provided on the rear side of the lateral mounting base 34. The mounting rail 36 is a conventional structure in the electrical field, and can be used for mounting corresponding components; the wire casing 33 is as the conventional structure in electric field, can supply corresponding cable to walk the line, and the structure is regular pleasing to the eye. The electrical component on the side mounting base 34 includes a branching terminal 31, an intermediate relay 32, and a connection terminal 35, and the branching terminal 31 is a nine-in-one branching terminal. The intermediate relay 32 is provided with a large number, including reserving the relay, can satisfy more relay quantity demand, and the commonality is good. The intermediate relay 32 with low failure rate and low detection rate is placed on the lateral installation base body 34, so that the space in the cabinet is fully utilized, and debugging and monitoring of the electrical components on the rear side installation base body 43 are not influenced.

The rear mounting substrate 43 is a rear mounting plate, and the rear mounting substrate 43 is spaced from the rear cavity wall of the device cavity 20. As shown in fig. 5, the electrical components on the rear-side mounting base 43 include a PLC module 37, a safety grid 38, an intermediate relay 32, a fuse terminal 40, an intrinsically safe power supply 41, a valve amplifier 42, a rotational speed monitor 44, and a safety relay 45.

As shown in fig. 7, the front-side mounting base body formed by the cabinet door is provided with the touch screen 14, the explosion-proof button, the optical transceiver 47, the gateway 48, the switching power supply 49, the circuit breaker 50 and the filter 51, so that a large part of space in the device cavity can be saved according to the structural size of the electrical components, and excessive connecting wires between the cabinet door and the device cavity 20 can be avoided. The safety barrier 38 on the rear side installation base 43 is including reserving the safety barrier, the valve amplifier 42 on the rear side installation base 43 is including reserving the amplifier, the fuse terminal 40 on the rear side installation base 43 is including reserving the fuse terminal, can satisfy more corresponding electrical components's quantity demand equally, and the commonality is good. The reservation of the key elements is the key of the compact mining TBM explosion-proof PLC control cabinet for adapting to various mining TBMs, and is also the premise of standardization and batch production.

As shown in fig. 4, the connection cavity 19 includes a communication adapter board 21, a double-layer connection terminal row 25, a double-layer terminal signboard 30, a nine-core wall-through terminal 26, a multi-core glue-filled wall-through terminal 29, a power board 27, and a power connection terminal 28. The communication adapter plate 21 is provided with a six-core wiring terminal 22 for communication, and further comprises an optical fiber coupler 23 and a network cable wiring port 24, wherein the optical fiber coupler 23 and the network cable wiring port form a communication path between the compact mining TBM explosion-proof PLC control cabinet and an external large network. The wires in the wiring cavity 19 are connected with the outside through the weak current cable lead-in device 1 and the strong current cable lead-in device 2 shown in fig. 1, and are connected with the device cavity 20 through the nine-core wall-through terminal 26 and the multi-core glue-filled wall-through terminal 29 shown in fig. 4. Multicore encapsulating wall feed-through terminal 29 can transmit a plurality of signals, but the cost is higher, nine core wall feed-through terminal 26 can only connect nine lines, but walk the line neatly, adopt multicore encapsulating wall feed-through terminal 29 and nine core wall feed-through terminal 26 to combine the use between device chamber 20 and the wiring chamber 19, the use quantity of multicore encapsulating wall feed-through terminal 29 is adjusted according to the interior compact arrangement of cabinet, can reach a large amount of control demands and can guarantee to walk the line neatly again, prevent the interior indiscriminate phenomenon of wiring chamber 19, thereby reduce the risk of producing the spark in the high gas mine. As shown in fig. 3, an internal grounding bolt 17 and a grounding plate are also disposed in the wiring chamber 19.

As shown in fig. 9, the compact mining TBM explosion-proof PLC control cabinet has a structure diagram of a butt joint between key components and external components, and a rotation speed monitor 44 is connected to a PLC remote I/O module, is connected to a double-layer terminal block 25 of a wiring cavity 19 through a corresponding wall-through terminal, is led out to a plurality of explosion-proof wiring boxes outside through a weak current cable lead-in device 1, and is then connected to a plurality of proximity switches on an explosion-proof TBM trailer. A part of the intermediate relays 32 are connected with the PLC remote I/O module, are connected to the double-layer wiring terminal row 25 in the wiring cavity 19 through corresponding wall-through terminals, are led out to a plurality of external explosion-proof wiring boxes through the weak current cable lead-in device 1, and are then connected to the switch electromagnetic valves at various positions on the explosion-proof TBM trailer. A part of the intermediate relays 32 are connected with the PLC remote I/O module, are connected into the double-layer wiring terminal strip 25 in the wiring cavity 19 through corresponding wall-penetrating terminals, and are directly connected to the explosion-proof starting cabinet through the weak current cable leading-in device 1.

The main driving motor temperature monitoring adopts PT100 to monitor, and PT100 and the flameproof sensor outside the cabinet are connected to a double-layer wiring terminal row 25 in a wiring cavity 19 directly through corresponding wall-penetrating terminals from corresponding PLC remote I/O point positions in the cabinet, are led out to an explosion-proof wiring box from a weak current cable leading-in device 1, and are connected to PT100 in a host area and flameproof sensors on a plurality of trailers. The valve amplifier 42 is connected with the PLC remote I/O module, is connected into the double-layer wiring terminal row 25 in the wiring cavity 19 through a corresponding wall-penetrating terminal, is led out to a plurality of external explosion-proof wiring boxes through the weak current cable leading-in device 1, and is then connected to a plurality of proportional solenoid valves on an explosion-proof TBM trailer. The DI type safety grid and the DQ type safety grid in the safety grid 38 are connected with the PLC remote I/O module, are connected into the double-layer wiring terminal row 25 in the wiring cavity 19 through corresponding wall-through terminals, and are led out to the intrinsic safety operation box through the weak current cable lead-in device 1 to perform input and output signal interaction of digital quantity; the AI type safety barrier 38 in the safety barrier 38 is connected with the PLC remote I/O module, and is connected with the double-layer wiring terminal row 25 in the wiring cavity 19 through the corresponding wall-through terminal, and is led out to the intrinsic safety junction box through the weak current cable lead-in device 1, and then is connected to the intrinsic safety sensor on the anti-explosion TBM trailer.

The touch screen 14 for man-machine interaction is connected and communicated with one network port of the PLC remote I/O module through Ethernet, the other network port of the PLC remote I/O module is connected with one network port of the optical transceiver 47 through Ethernet, and the other network port of the optical transceiver 47 is connected into the communication adapter plate 21 in the wiring cavity 19 through a wall-through terminal in a network cable mode. The optical port of the optical transceiver 47 is connected to the communication adapter board 21 in the wiring cavity 19 through the corresponding wall-through terminal in an optical fiber manner, the third port of the optical transceiver 47 is connected to the gateway 48 in the cabinet in a network cable manner, and the gateway 48 is connected to the communication adapter board 21 in the wiring cavity 19 through the corresponding wall-through terminal in an RS-communication manner. The Ethernet, the optical fiber and the RS-communication are led out of the cabinet through the weak current cable lead-in device 1 and form an interconnection relation with a large network system on the TBM outside the cabinet.

When the compact mining TBM explosion-proof PLC control cabinet is applied to a mining TBM, as shown in fig. 10, a corresponding electrical system is composed of core devices such as a set of mobile substation, a set of main drive explosion-proof frequency conversion cabinet, two lighting cabinets, three starting cabinets, two compact mining TBM explosion-proof PLC control cabinets, an explosion-proof operation platform, a set of guide system and an optical transceiver 47. Specifically, the mobile substation is directly connected with a main drive explosion-proof frequency conversion cabinet and three starting cabinets through power supply cables, the lighting cabinet is connected with the starting cabinets through cables, the lighting cabinet supplies power to two compact type mining TBM explosion-proof PLC control cabinets, and the lighting cabinet supplies power to an explosion-proof operation platform and a guiding system. The mobile substation is sequentially connected with the starting cabinets and the compact mining TBM explosion-proof PLC control cabinet through communication, the three starting cabinets are sequentially connected in series through communication, and the explosion-proof operating platform is connected with the guide system through communication; the main drive explosion-proof frequency conversion cabinet, the compact type mining TBM explosion-proof PLC control cabinet and the explosion-proof operation platform are in serial connection through Ethernet communication; the compact type mining TBM explosion-proof PLC control cabinet is connected with other optical transceivers 47 on the explosion-proof TBM in an optical fiber mode.

The compact mining TBM explosion-proof PLC control cabinet provided by the utility model can realize the aims of one-time evidence obtaining and standardized production, avoids repeated design, can meet the use requirements of TBMs with various diameters, can save the whole machine space of the mining TBM, and can reduce the fault rate.

Embodiment 2 of a compact mining TBM explosion-proof PLC control cabinet of the present invention:

the present embodiment is different from embodiment 1 in that, in embodiment 1, the side mounting base 34 is a side mounting plate, whereas in the present embodiment, the side mounting base 34 is formed by a cavity side wall of the device cavity 20. Of course, in other embodiments, the backside mounting substrate 43 may also be formed by the backside cavity wall of the device cavity 20.

Embodiment 3 of a compact mining TBM explosion-proof PLC control cabinet of the present invention:

the present embodiment is different from embodiment 1 in that in embodiment 1, the side mounting base 34 is disposed on the left side of the device cavity 20, whereas in the present embodiment, the side mounting base 34 is disposed on the right side of the device cavity 20. Of course, in other embodiments, the lateral mounting base 34 may be provided in two locations, one on each of the left and right sides of the device cavity 20.

In the above embodiment, the lateral mounting base 34 is a relay mounting base mainly used for mounting the intermediate relays 32, and the intermediate relays 32 are mounted in a plurality of rows from the top to the bottom of the relay mounting base, but in the present embodiment, other electrical components may be disposed on the lateral mounting base 34.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.

Claims (10)

1. The utility model provides an explosion-proof PLC switch board of mining TBM of compact, includes:

the front side of the device cavity (20) is provided with an opening, and a cabinet door is arranged at the opening;

the component mounting base body is arranged in the component cavity (20) and is used for mounting electric components;

it is characterized in that the preparation method is characterized in that,

the component mounting base includes:

a lateral mounting base (34) which is perpendicular to the cabinet door in a closed state and is positioned on at least one side of the device cavity (20) in the left-right direction;

a rear-side mounting base (43) provided on the rear side of the device cavity (20);

the lateral installation base body (34) and the rear installation base body (43) are provided with the electrical components.

2. The compact mining TBM explosion-proof PLC control cabinet according to claim 1, characterized in that the electrical components comprise an intermediate relay (32), and at least a part of the intermediate relay (32) is arranged on a side mounting base body (34).

3. The compact mining TBM explosion-proof PLC control cabinet according to claim 2, characterized in that the intermediate relay (32) comprises a reserve relay.

4. The compact mining TBM explosion-proof PLC control cabinet according to claim 2 or 3, characterized in that the lateral mounting base body (34) is a relay mounting base body, and a plurality of rows of the intermediate relays (32) are mounted on the top to the bottom of the relay mounting base body.

5. The compact mining TBM explosion-proof PLC control cabinet according to claim 1, 2 or 3, characterized in that the lateral mounting base (34) is a lateral mounting plate.

6. The compact mining TBM explosion-proof PLC control cabinet according to claim 1, 2 or 3, characterized in that the electrical components comprise a safety barrier (38), a safety relay (45), a valve amplifier (42) and a fuse terminal (40);

the safety barrier (38), safety relay (45), valve amplifier (42) and fuse terminal (40) are arranged on the rear mounting base (43).

7. The compact mining TBM explosion-proof PLC control cabinet according to claim 6, characterized in that the electrical components comprise a PLC module (37), and the PLC module (37) is arranged above the rear mounting base body (43).

8. The compact mining TBM explosion-proof PLC control cabinet according to claim 6, characterized in that the safety barrier (38) on the rear mounting base (43) comprises a reserve safety barrier, the valve amplifier (42) on the rear mounting base (43) comprises a reserve amplifier, and the fuse terminal (40) on the rear mounting base (43) comprises a reserve fuse terminal.

9. The compact mining TBM explosion-proof PLC control cabinet according to claim 1, 2 or 3, wherein the component mounting base further comprises a front mounting base, and the front mounting base is arranged on or formed by a cabinet door; the front mounting base body is provided with an optical transceiver (47), a gateway (48), a switching power supply (49), a circuit breaker (50) and a filter (51).

10. The compact mining TBM explosion-proof PLC control cabinet according to claim 1, 2 or 3, characterized in that a wiring cavity (19) is arranged at the top of the device cavity (20), and a strong electric cable lead-in device (2) and a weak electric cable lead-in device (1) are arranged on the cavity side wall of the wiring cavity (19);

the wiring cavity (19) and the device cavity (20) are isolated from each other, a multi-core glue-pouring wall-penetrating terminal (29) and a nine-core wall-penetrating terminal (26) are arranged in the wiring cavity (19), and an electric passage is formed between the wiring cavity (19) and the device cavity (20) by the multi-core glue-pouring wall-penetrating terminal (29) and the nine-core wall-penetrating terminal (26);

the wiring cavity (19) is also provided with a wiring terminal row, and the wiring terminal row corresponds to each multi-core glue-pouring wall-penetrating terminal (29) and the nine-core wall-penetrating terminal (26) respectively.

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