Improved special electric cabinet for coal mining machine

Abstract

The utility model discloses an improved special electric cabinet for a coal mining machine, which is internally provided with a first mounting cavity for mounting a frequency converter assembly, a second mounting cavity for mounting a contactor assembly and a third mounting cavity for mounting a fuse assembly, and a first mounting plate is arranged between the first mounting cavity and the second mounting cavity. A second mounting plate is arranged between the second mounting cavity and the third mounting cavity, a camera assembly is further arranged in the electric control box, the camera assembly comprises a camera element, and the mounting angle of the camera element and the electric control box is adjustable; a camera element is arranged in the electric control box to monitor the interior, so that the electric control box is prevented from being damaged due to over-high temperature of components caused by long-time use, and the service life of the electric control box is prolonged; the interior of the electric cabinet is divided into three mounting cavities, so that a plurality of components in the electric cabinet are mounted in order, the space is fully utilized, and wiring or maintenance is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of electric control boxes for coal shearers, in particular to an improved special electric control box for coal shearers. Background Art

[0002] The shearer's electrical control box is the core control component of the shearer product. The quality of the control box directly affects the stability and lifespan of the shearer product. The control box has numerous internal components, and the complexity of its structure directly affects the processing cost and the ease of disassembly and maintenance. Existing shearer electrical control boxes have a chaotic internal structure, making assembly and maintenance difficult. Furthermore, the control box typically operates for long periods of time, resulting in high internal temperatures, which can easily lead to high-temperature accidents, damaging key components and, in turn, the control box, affecting the normal operation of the shearer. The enclosed structure of the control box makes it difficult for workers to observe and inspect its interior, making it difficult to guarantee the service life of the control box. Therefore, there is an urgent need to propose an improved, specialized electrical control box for shearers. Utility Model Content

[0003] In view of the shortcomings of the existing technology, an improved special electric control box for coal mining machines is proposed, which solves the problems in the above background technology that the internal installation structure of the existing electric control box for coal mining machines is complex and the internal cannot be observed and detected.

[0004] To achieve the above objectives, the present invention proposes the following technologies:

[0005] An improved special electric control box for a coal mining machine is provided with a first installation cavity for installing a frequency converter assembly, a second installation cavity for installing a contactor assembly, and a third installation cavity for installing a fuse assembly. A first installation plate is provided between the first installation cavity and the second installation cavity, and a second installation plate is provided between the second installation cavity and the third installation cavity. A camera assembly is also provided in the electric control box, and the camera assembly includes a camera element, and the installation angle between the camera element and the electric control box is adjustable.

[0006] Furthermore, an intrinsically safe component is also installed in the first installation cavity, and the inverter component includes an inverter and a rectifier inverter. The intrinsically safe component is installed on the top of the electrical control box, and the inverter and rectifier inverter are arranged below the intrinsically safe component. A fan assembly is arranged on the rear side of the rectifier inverter.

[0007] Furthermore, the intrinsically safe component is mounted on the top surface of the electric control box through a first mounting bracket, and the intrinsically safe component is drawable and arranged in the first mounting bracket.

[0008] Furthermore, a circuit breaker assembly, an upper hanging assembly and a main control assembly are also installed in the second installation cavity. The circuit breaker assembly is fixed to the inside of the electrical control box through a vertically arranged first mounting plate. The upper hanging assembly is installed on the top surface of the electrical control box. The main control assembly is arranged below the upper hanging assembly, and the contactor assembly is arranged on one side of the main control assembly.

[0009] Furthermore, the upper hanging component is mounted on the top surface of the electric control box through the second mounting frame, and the upper hanging component is drawable and arranged in the second mounting frame.

[0010] Furthermore, a control variable assembly and a high and low voltage isolation assembly are also installed in the third installation cavity. The high and low voltage isolation assembly is fixed to the inside of the electrical control box through a vertically arranged second mounting plate. The fuse assembly is fixedly installed on the top of the electrical control box. The control variable assembly is installed on the bottom of the electrical control box. A fan assembly is arranged on the rear side of the control variable assembly.

[0011] Furthermore, an isolating switch assembly is provided below the fuse assembly, a camera element is provided around the isolating switch assembly, and the camera element is detachably provided on the second mounting plate.

[0012] Furthermore, a camera element is provided on the peripheral side of the contactor assembly, and the camera element is detachably provided on the top of the electric control box.

[0013] Furthermore, the camera element is detachably mounted on the mounting bending plate, and the mounting angle between the two is adjustable. The mounting bending plate is detachably mounted on the camera board, and the mounting angle between the two is adjustable. The camera board is detachably mounted inside the electrical control box.

[0014] Compared with the prior art, the comprehensive effects brought by the utility model include:

[0015] (1) The utility model sets a camera element in the electric control box, and the camera element faces the isolating switch assembly and the contactor assembly to monitor them, so as to avoid the isolating switch assembly and the contactor assembly being damaged due to excessive temperature when the electric control box is used for a long time, thereby facilitating the staff to take corresponding solutions before the isolating switch assembly and the contactor assembly are overloaded, thereby improving the service life of the electric control box.

[0016] (2) The interior of the electric control box is divided into three installation cavities by the first installation plate and the second installation plate, so that multiple components in the electric control box can be installed in an orderly manner. The installation frame is set according to the requirements of the component wiring method, and the intrinsically safe components and the upper hanging components are installed on the top surface of the electric control box, so as to make full use of the space and facilitate wiring. At the same time, the components inside the installation frame can be pulled out and moved in the installation frame, so as to facilitate maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic top view of the overall structure of the electric control box according to an embodiment of the utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the electric control box in the AA direction according to an embodiment of the utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the electric control box in the BB direction according to an embodiment of the utility model;

[0020] Figure 4 This is a cross-sectional view of the electric control box in the CC direction according to an embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the overall assembly of the camera assembly according to an embodiment of the present utility model.

[0022] Legend: 1. Intrinsically safe components; 2. Inverter frequency converter; 3. Rectifier frequency converter; 4. Fan assembly; 5. Control and transformer assembly; 6. Fuse assembly; 7. High and low voltage isolation assembly; 8. Main control assembly; 9. Top-mounted assembly; 10. Circuit breaker assembly; 11. Camera assembly; 12. Contactor assembly; 13. Isolating switch assembly; 14. Camera component; 15. Mounting bending plate; 16. Camera board. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts are within the scope of protection of the present invention.

[0024] In this document, relational terms such as "first" and "second" are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Terms such as "upper," "lower," "left," "right," and "top" indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0025] like Figures 1 to 5As shown, an improved, specialized electrical control box for a coal mining machine includes a first mounting cavity for mounting an inverter assembly, a second mounting cavity for mounting a contactor assembly 12, and a third mounting cavity for mounting a fuse assembly 6. A first mounting plate is disposed between the first and second mounting cavities, and a second mounting plate is disposed between the second and third mounting cavities. The electrical control box also includes a camera assembly 11, which includes a camera element 14. The angle between the camera element 14 and the electrical control box is adjustable. A display device is also externally connected to the camera assembly 11.

[0026] By dividing the interior of the electric control box into three installation cavities, it is convenient to install the various electrical components of the electric control box according to the wiring position and the direction of the internal lines, so as to achieve orderly installation. At the same time, it is convenient to carry out targeted assembly and disassembly according to the location of different electrical components for maintenance and other work. A camera component 11 is set in the electric control box, which facilitates the monitoring of the electrical components inside the electric control box through the camera component 11. The staff can understand the usage of the various electrical components inside the electric control box without disassembling the electric control box, such as monitoring the temperature of the electrical components, and taking corresponding treatment measures before the temperature of the internal components of the electric control box is overloaded, so as to protect the electric control box, avoid damage to the electric control box, and increase the service life of the electric control box.

[0027] In this embodiment of the improved, specialized electrical control box for coal mining machines, an intrinsically safe component 1 is also installed within the first mounting cavity. The frequency converter assembly includes an inverter 2 and a rectifier 3. The intrinsically safe component 1 is mounted on the top of the electrical control box, with the inverter 2 and rectifier 3 positioned below the intrinsically safe component 1. A fan assembly 4 is positioned behind the rectifier 3. The intrinsically safe component 1 is mounted to the top surface of the electrical control box via a first mounting bracket, within which the intrinsically safe component 1 is retractably disposed.

[0028] The intrinsically safe component 1 is secured to the top of the electrical control box via a first mounting bracket, fully utilizing the space in the first mounting cavity while preventing other components from obstructing the connection between the intrinsically safe component 1 and external wiring, facilitating wiring. The retractable design further increases the flexibility of installation and removal, facilitating inspection or maintenance. A fan component 4 is provided to increase air circulation within the electrical control box and provide internal cooling.

[0029] In the improved, specialized electrical control box for coal mining machines of this embodiment, a circuit breaker assembly 10, an upper mounting assembly 9, and a main control assembly 8 are also installed within the second mounting cavity. The circuit breaker assembly 10 is secured to the interior of the electrical control box via a vertically disposed first mounting plate. The upper mounting assembly 9 is mounted on the top surface of the electrical control box, the main control assembly 8 is disposed below the upper mounting assembly 9, and the contactor assembly 12 is disposed to one side of the main control assembly 8. The upper mounting assembly 9 is mounted to the top surface of the electrical control box via a second mounting bracket, within which the upper mounting assembly 9 is retractably disposed.

[0030] By providing a vertical first mounting plate, the first mounting cavity and the second mounting cavity are separated, which facilitates positioning when assembling electrical components and simultaneously installs and fixes the circuit breaker assembly 10, further increasing the utilization rate of the internal space of the electric control box; the upper hanging assembly 9 is fixed by the second mounting frame, making full use of the space and facilitating wiring. The retractable setting facilitates inspection or maintenance of the upper hanging assembly 9.

[0031] In the improved special electric control box for the coal mining machine of this embodiment, a control and change assembly 5 and a high and low voltage isolation assembly 7 are also installed in the third installation cavity. The high and low voltage isolation assembly 7 is fixed to the inside of the electric control box through a vertically arranged second installation plate. The fuse assembly 6 is fixedly installed on the top of the electric control box, and the control and change assembly 5 is installed at the bottom of the electric control box. A fan assembly 4 is provided on the rear side of the control and change assembly 5.

[0032] By setting a vertical second mounting plate, the second mounting cavity and the third mounting cavity are separated, which facilitates positioning when assembling electrical components. At the same time, the high and low voltage isolation components 7 are installed and fixed, thereby increasing the utilization rate of the internal space of the electrical control box; the fuse component 6 is fixed to the top of the electrical control box to further make full use of the space, and a fan component 4 is set to dissipate heat and cool the interior of the electrical control box.

[0033] In this embodiment of the improved, specialized electrical control box for coal mining machines, an isolating switch assembly 13 is disposed below the fuse assembly 6. A camera element 14 is disposed around the isolating switch assembly 13 and is removably mounted on the second mounting plate. The camera element 14 monitors the use and heating of the isolating switch assembly 13. A display device is externally connected to the camera element 14, which provides early warnings. When the temperature of the isolating switch assembly 13 increases with age and approaches the load temperature, the display device issues an alarm, prompting personnel to shut down the machine, cool it down, or take other appropriate measures. This prevents the isolating switch assembly 13 from burning out and potentially affecting the normal operation of the electrical control box and the coal mining machine.

[0034] In this embodiment of the improved, specialized electrical control box for coal mining machines, a camera element 14 is provided around the contactor assembly 12 and is removably mounted on the top of the electrical control box. The camera element 14 monitors the use and heating of the contactor assembly 12. A display device is externally connected to the camera element 14, which provides early warnings. When the temperature of the contactor assembly 12 increases with use and approaches the load temperature, the display device issues an alarm, prompting personnel to shut down the machine, cool it down, or take other appropriate measures. This prevents the contactor assembly 12 from burning out and affecting the normal operation of the electrical control box and the coal mining machine.

[0035] In this embodiment of the improved, specialized electrical control box for coal mining machines, camera element 14 is removably mounted on a bent mounting plate 15, with the mounting angle between the two being adjustable. Bent mounting plate 15 is removably mounted on a camera board 16, with the mounting angle between the two being adjustable. Camera board 16 is removably mounted within the electrical control box. Camera element 14 is configured to adjust in response to the position of bent mounting plate 15 on camera board 16, enabling preliminary adjustment of the angle of camera element 14. Camera element 14 itself then undergoes further, more refined, angle adjustment on bent mounting plate 15. These two adjustment methods, combined, allow for a wider camera range, enabling more accurate monitoring of component temperatures and ensuring effective monitoring.

[0036] In the present invention, unless otherwise clearly stipulated and limited, the terms "installation", "setting", "connection", "fixation", "rotation" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0037] Although the embodiments of the present invention have been shown and described in detail, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved special electric control box for coal mining machine, characterized in that: It is provided with a first installation cavity for installing the inverter assembly, a second installation cavity for installing the contactor assembly, and a third installation cavity for installing the fuse assembly. A first installation plate is provided between the first installation cavity and the second installation cavity, and a second installation plate is provided between the second installation cavity and the third installation cavity. A camera assembly is also provided in the electrical control box, and the camera assembly includes a camera element, and the installation angle of the camera element and the electrical control box is adjustable.

2. The improved special electric control box for coal mining machine according to claim 1, characterized in that: An intrinsically safe component is also installed in the first installation cavity. The inverter component includes an inverter and a rectifier. The intrinsically safe component is installed on the top of the electrical control box. The inverter and rectifier are arranged below the intrinsically safe component. A fan assembly is arranged on the rear side of the rectifier.

3. The improved special electric control box for coal mining machine according to claim 2, characterized in that: The intrinsically safe component is mounted on the top surface of the electric control box through a first mounting frame, and the intrinsically safe component is drawable and arranged in the first mounting frame.

4. The improved special electric control box for coal mining machine according to claim 1, characterized in that: A circuit breaker assembly, an upper hanging assembly and a main control assembly are also installed in the second installation cavity. The circuit breaker assembly is fixed to the inside of the electric control box through a vertically arranged first mounting plate. The upper hanging assembly is installed on the top surface of the electric control box. The main control assembly is arranged below the upper hanging assembly, and the contactor assembly is arranged on one side of the main control assembly.

5. The improved special electric control box for coal mining machine according to claim 4, characterized in that: The upper hanging component is mounted on the top surface of the electric control box through the second mounting frame, and the upper hanging component is drawable and arranged in the second mounting frame.

6. The improved special electric control box for coal mining machine according to claim 1, characterized in that: The third installation cavity is also equipped with a control and change assembly and a high and low voltage isolation assembly. The high and low voltage isolation assembly is fixed to the inside of the electrical control box through a vertically arranged second mounting plate. The fuse assembly is fixedly installed on the top of the electrical control box. The control and change assembly is installed on the bottom of the electrical control box. A fan assembly is provided on the rear side of the control and change assembly.

7. The improved special electric control box for coal mining machine according to claim 6, characterized in that: An isolating switch assembly is arranged below the fuse assembly, and a camera element is arranged on the periphery of the isolating switch assembly. The camera element is detachably arranged on the second mounting plate.

8. The improved special electric control box for coal mining machine according to claim 4, characterized in that: A camera element is provided on the peripheral side of the contactor assembly, and the camera element is detachably provided on the top of the electric control box.

9. An improved special electric control box for coal mining machine according to claim 7 or 8, characterized in that: The camera element is detachably mounted on the mounting bending plate, and the mounting angle between the two is adjustable. The mounting bending plate is detachably mounted on the camera board, and the mounting angle between the two is adjustable. The camera board is detachably mounted inside the electrical control box.

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