Combination switch for mining flameproof and intrinsically safe load center

Abstract

The utility model provides a mining explosion-proof and intrinsically safe combination switch for a load center, a multi-loop output combination switch is connected with one end of a transformer through an explosion-proof connecting piece, the other end of the transformer is connected with a high-voltage switch, and a flange supporting assembly is fixedly arranged at the joint of the transformer and the multi-loop output combination switch. The flange supporting assembly is used for assisting in decomposing force at the joint of the transformer and the multi-loop output combination switch to prevent long-term gravity deformation; a plurality of adjusting support bolts are arranged between the multi-loop output combination switch and the support platform at intervals, and the multi-loop output combination switch is supported and the force applied to the joint of the transformer and the multi-loop output combination switch is reduced and decomposed by adjusting the heights of the adjusting support bolts according to different specification requirements, so that the support flexibility is further improved; and the backup protection unit is arranged to ensure detection at low voltage and tripping at high voltage, so that the use safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mining equipment, more particularly to a mining explosion-proof and intrinsically safe load center combined switch. BACKGROUND

[0002] The power of many fully mechanized mining, transportation and other equipment on the fully mechanized coal mining face of the newly built million-ton mine in China is very large, with the improvement of the voltage grade of the coal mine underground power grid and the use of high-power, high-capacity and high-transportation equipment, it is necessary to develop a mining explosion-proof and intrinsically safe load center combined switch that meets the application of large current and integrates high-voltage distribution devices and transformer flange mode, which can reduce the occupied area and reduce the equipment wiring, thereby reducing many cable faults.

[0003] The closest prior art is a mining explosion-proof and intrinsically safe dual-voltage independent explosion-proof structure power load center with authorization announcement number CN202454904U, which discloses a high-voltage vacuum switch, a dual-power combined switch and a transformer arranged in respective explosion-proof cavities, the high-voltage vacuum switch and the dual-power combined switch are arranged on both sides of the transformer, the transformer is connected to the high-voltage vacuum switch and the dual-power combined switch through flanges to realize explosion-proof connection, and the dual-power combined switch includes a high-voltage switch and a low-voltage switch arranged in a high-voltage explosion-proof cavity and a low-voltage explosion-proof cavity, respectively.

[0004] The existing power load center connects the transformer and the dual-power combined switch only through flanges, and the flange connection is prone to deformation under stress for a long time, which reduces the explosion-proof property.

[0005] Therefore, the utility model provides an auxiliary supporting and anti-deformation mining explosion-proof and intrinsically safe load center combined switch. UTILITY MODEL CONTENTS

[0006] The utility model discloses a kind of auxiliary supporting and anti-deformation mining explosion-proof and intrinsically safe load center combined switch.

[0007] A kind of mining explosion-proof and intrinsically safe load center combined switch, including high-voltage switch 1, transformer 2, multiple circuit output combined switch 3, flange support assembly 4, it is characterized in that: multiple circuit output combined switch 3 is connected with transformer 2 one end by explosion-proof connecting piece, transformer 2 other end is connected with high-voltage switch 1, transformer 2 and multiple circuit output combined switch 3 connection place are fixed with flange support assembly 4, flange support assembly 4 is used to auxiliary decomposition transformer 2 and multiple circuit output combined switch 3 connection place force prevent its long-term deformation under gravity.

[0008] Further, the flange support assembly 4 comprises a flange support frame 41 and a support platform 42, the flange support frame 41 is fixed below the connection position of the transformer 2 and the multi-circuit output combination switch 3, and is used to support the connection position of the transformer 2 and the multi-circuit output combination switch 3, the support platform 42 is arranged below the flange support frame 41, and the multi-circuit output combination switch 3 is arranged above the support platform 42, and the support platform 42 is used to support the multi-circuit output combination switch 3 and reduce the force borne by the connection position of the transformer 2 and the multi-circuit output combination switch 3.

[0009] Further, a plurality of adjusting support bolts 43 are arranged between the multi-circuit output combination switch 3 and the support platform 42, one end of the adjusting support bolt 43 is threadedly connected with the support platform 42, the other end of the adjusting support bolt 43 abuts against the bottom of the multi-circuit output combination switch 3, and the adjusting support bolt 43 is used to adjust the height according to different specifications to support the multi-circuit output combination switch 3 and reduce the force borne by the connection position of the transformer 2 and the multi-circuit output combination switch 3.

[0010] In some embodiments, the multi-circuit output combination switch 3 comprises an explosion-proof box body 31, the explosion-proof box body 31 is provided with a cable connection output port 311 at the side edge, the explosion-proof box body 31 is formed into an isolation chamber 32 and a main chamber 33 by a partition plate, the isolation chamber 32 is provided with a disconnecting switch control unit 321, the main chamber 33 is provided with a leaf spring plug-in power drive unit 331, the transformer 2 is connected with the disconnecting switch control unit 321 of the isolation chamber 32, a terminal post 34 is arranged between the isolation chamber 32 and the main chamber 33, the disconnecting switch control unit 321 is connected with the leaf spring plug-in power drive unit 331 through the terminal post 34, and the leaf spring plug-in power drive unit 331 is connected with the cable connection output port 311.

[0011] Further, the leaf spring plug-in power drive unit 331 is a 1.14kv / 400A leaf spring plug-in power drive unit.

[0012] Further, the explosion-proof box body 31 is provided with a front quick-opening door mechanism 312 at the front side, and is provided with a rear quick-opening door mechanism at the rear side, when one of the front quick-opening door mechanism 312 and the rear quick-opening door mechanism is opened, the multi-circuit output combination switch 3 is powered off.

[0013] In some embodiments, the multi-circuit output combination switch 3 is further provided with a backup protection unit, the backup protection unit is electrically connected with the high-voltage switch 1, when the backup protection unit detects that the multi-circuit output combination switch 3 is low-voltage, the high-voltage switch 1 normally works, and when the backup protection unit detects that the multi-circuit output combination switch 3 is high-voltage, the high-voltage switch 1 is forcibly tripped.

[0014] The utility model discloses a beneficial effect: the utility model provides a kind of combined switch for mining explosion-proof and intrinsically safe load center, and multiple circuit output combined switch 3 is connected with transformer 2 one end by explosion-proof connecting piece, transformer 2 other end is connected with high voltage switch 1, the flange support assembly 4 is fixedly arranged at transformer 2 and multiple circuit output combined switch 3 connection, flange support assembly 4 is used to assist decomposition transformer 2 and multiple circuit output combined switch 3 connection force to prevent its long-term deformation by gravity;Multiple circuit output combined switch 3 and support platform 42 are also spaced apart and provided with multiple adjusting support bolts 43, and the force that the multiple circuit output combined switch 3 and the decomposition transformer 2 and multiple circuit output combined switch 3 connection are subjected is reduced by adjusting support bolt 43 according to different specification height to adjust to support, further improve the flexibility of support;Set up backup protection unit to ensure detection at low voltage, trip at high voltage, improve use safety. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a kind of whole structure schematic diagram of the combined switch for mining explosion-proof and intrinsically safe load center of the application.

[0016] Figure 2 It is the structure schematic diagram of the multiple circuit output combined switch of the combined switch for mining explosion-proof and intrinsically safe load center of the application.

[0017] Figure 3 It is the multiple circuit output combined switch of the combined switch for mining explosion-proof and intrinsically safe load center of the application and the cross-sectional view.

[0018] Main element symbol explanation

[0019] High voltage switch 1, transformer 2, multiple circuit output combined switch 3, explosion-proof box body 31, cable connection output port 311, front quick door mechanism 312, isolation cavity 32, isolating switch control unit 321, main cavity 33, leaf spring plug-in type power drive unit 331, binding post 34, flange support assembly 4, flange support frame 41, support platform 42, adjusting support bolt 43.

[0020] The following specific embodiments will be further described in conjunction with the above-mentioned drawings to further illustrate the utility model. Specific embodiments

[0021] The following embodiments are described to assist in the understanding of the present application, and the embodiments are not and should not be interpreted in any way to limit the protection scope of the present application.

[0022] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as individual functional units (which may include subunits), but those skilled in the art will recognize that various components or portions thereof may be divided into individual components or may be integrated together (including integrated within a single system or component).

[0023] Furthermore, the connection between components or systems is not intended to be limited to a direct connection; on the contrary, data between these components may be modified, reformatted, or otherwise altered by intermediate components. Additionally, other or fewer connections may be used. It should also be noted that the terms "connection," "link," or "input" should be understood to include direct connections, indirect connections via one or more intermediate devices, and wireless connections.

[0024] Example 1:

[0025] like Figure 1 The diagram shown is a schematic representation of the overall structure of a combination switch for a mine explosion-proof and intrinsically safe load center according to this application; Figure 2 The diagram shown is a structural schematic of a multi-circuit output combination switch for a mine explosion-proof and intrinsically safe load center application according to this application; Figure 3 The figure shown is a top sectional view of a multi-circuit output combination switch for a mine explosion-proof and intrinsically safe load center combination switch according to this application.

[0026] A combination switch for explosion-proof and intrinsically safe load centers in mining applications includes a high-voltage switch 1, a transformer 2, a multi-circuit output combination switch 3, and a flange support assembly 4. The multi-circuit output combination switch 3 is connected to one end of the transformer 2 via an explosion-proof connector, and the other end of the transformer 2 is connected to the high-voltage switch 1. A flange support assembly 4 is fixedly provided at the connection point between the transformer 2 and the multi-circuit output combination switch 3. The flange support assembly 4 is used to help distribute the force at the connection point between the transformer 2 and the multi-circuit output combination switch 3 and prevent it from deforming under long-term gravity.

[0027] The flange support assembly 4 includes a flange support frame 41 and a support platform 42. The flange support frame 41 is fixedly provided below the connection between the transformer 2 and the multi-circuit output combination switch 3. The flange support frame 41 is used to support the connection between the transformer 2 and the multi-circuit output combination switch 3. The support platform 42 is provided below the flange support frame 41 and the multi-circuit output combination switch 3 is provided above the support platform 42. The support platform 42 is used to support the multi-circuit output combination switch 3 and reduce and distribute the force on the connection between the transformer 2 and the multi-circuit output combination switch 3.

[0028] A plurality of adjusting support bolts 43 are further arranged between the multi-circuit output combination switch 3 and the support platform 42, one end of the adjusting support bolt 43 is threadedly connected with the support platform 42, the other end of the adjusting support bolt 43 abuts against the bottom of the multi-circuit output combination switch 3, the adjusting support bolt 43 is used for adjusting the height according to different specifications to support the multi-circuit output combination switch 3 and reduce the force borne by the connection between the transformer 2 and the multi-circuit output combination switch 3.

[0029] The multi-circuit output combination switch 3 comprises an explosion-proof box body 31, the explosion-proof box body 31 is provided with a cable connection output port 311 at the side edge, the explosion-proof box body 31 is formed into an isolation chamber 32 and a main chamber 33 by a partition plate, the isolation chamber 32 is provided with a disconnecting switch control unit 321, the main chamber 33 is provided with a leaf spring plug-in power drive unit 331, the transformer 2 is connected with the disconnecting switch control unit 321 of the isolation chamber 32, a terminal post 34 is arranged between the isolation chamber 32 and the main chamber 33, the disconnecting switch control unit 321 is connected with the leaf spring plug-in power drive unit 331 through the terminal post 34, and the leaf spring plug-in power drive unit 331 is connected with the cable connection output port 311.

[0030] The leaf spring plug-in power drive unit 331 is a 1.14kv / 400A leaf spring plug-in power drive unit.

[0031] The explosion-proof box body 31 is provided with a front quick-opening door mechanism 312 at the front side, and is provided with a rear quick-opening door mechanism at the rear side, when one of the front quick-opening door mechanism 312 and the rear quick-opening door mechanism is opened, the multi-circuit output combination switch 3 is powered off.

[0032] The multi-circuit output combination switch 3 is further provided with a backup protection unit, the backup protection unit is electrically connected with the high-voltage switch 1, when the backup protection unit detects that the multi-circuit output combination switch 3 is low voltage, the high-voltage switch 1 normally works, when the backup protection unit detects that the multi-circuit output combination switch 3 is high voltage, the high-voltage switch 1 is forcibly tripped.

[0033] The utility model discloses a beneficial effect: the utility model provides a kind of combined switch for load center with explosion-proof and intrinsically safe type for mining, and multiple circuit output combined switch 3 is connected with transformer 2 one end by explosion-proof connecting piece, and transformer 2 other end is connected with high voltage switch 1, the flange support assembly 4 is fixed with transformer 2 and multiple circuit output combined switch 3 junction, flange support assembly 4 is used to assist decomposition transformer 2 and multiple circuit output combined switch 3 junction force to prevent its long-term deformation by gravity;Multiple circuit output combined switch 3 and support platform 42 between still interval be equipped with multiple adjusting support bolt 43, by adjusting support bolt 43 according to different specification requirement height is adjusted to support multiple circuit output combined switch 3 and reduce, decomposition transformer 2 and multiple circuit output combined switch 3 junction received force, further improve the flexibility of support;Set up backup protection unit to guarantee detection in low pressure, trip in high pressure, improve use safety.

[0034] Although the present application has disclosed a plurality of aspects and embodiments, other aspects and embodiments will be apparent to those skilled in the art, and several modifications and improvements can be made without departing from the concept of the present application, which are all within the scope of the present application. The aspects and embodiments disclosed in the present application are only used for illustration, and are not intended to limit the present application, and the actual protection scope of the present application is subject to the claims.

Claims

1. A mine-used explosion-proof and intrinsically safe combined switch for load center, comprising a high-voltage switch (1), a transformer (2), a multi-circuit output combined switch (3), a flange support assembly (4), characterized in that: The multi-circuit output combination switch (3) is connected with the transformer (2) through an explosion-proof connecting piece, the other end of the transformer (2) is connected with the high-voltage switch (1), and a flange support assembly (4) is fixedly arranged at the connection position of the transformer (2) and the multi-circuit output combination switch (3), which is used for assisting decomposition of the connection position of the transformer (2) and the multi-circuit output combination switch (3) to prevent deformation caused by gravity for a long time.

2. The combined switch for mine flame-proof and intrinsically safe load center as claimed in claim 1, characterized in that: The flange support assembly (4) comprises a flange support frame (41) and a support platform (42), the flange support frame (41) is fixedly arranged below the connection position of the transformer (2) and the multi-circuit output combination switch (3), and is used for supporting the connection position of the transformer (2) and the multi-circuit output combination switch (3); the support platform (42) is arranged below the flange support frame (41) and above the multi-circuit output combination switch (3), and is used for supporting the multi-circuit output combination switch (3) and reducing the force borne by the connection position of the transformer (2) and the multi-circuit output combination switch (3).

3. The combined switch for mine use, explosion-proof and intrinsically safe load center of claim 2, wherein: A plurality of adjusting support bolts (43) are further arranged between the multi-circuit output combination switch (3) and the support platform (42), one end of each adjusting support bolt (43) is threadedly connected with the support platform (42), the other end of each adjusting support bolt (43) abuts against the bottom of the multi-circuit output combination switch (3), and each adjusting support bolt (43) is used for adjusting the height according to different specifications to support the multi-circuit output combination switch (3) and reduce the force borne by the connection position of the transformer (2) and the multi-circuit output combination switch (3).

4. The combined switch for mine use, explosion-proof and intrinsically safe load center of claim 1, wherein: The multi-circuit output combination switch (3) comprises an explosion-proof box body (31), the explosion-proof box body (31) is provided with a cable connection output port (311) on the side edge, the explosion-proof box body (31) is formed into an isolation cavity (32) and a main cavity (33) by a partition plate, the isolation cavity (32) is provided with a disconnecting switch control unit (321), the main cavity (33) is provided with a leaf spring plug-in power drive unit (331), the transformer (2) is connected with the disconnecting switch control unit (321) of the isolation cavity (32), a terminal post (34) is arranged between the isolation cavity (32) and the main cavity (33), the disconnecting switch control unit (321) is connected with the leaf spring plug-in power drive unit (331) through the terminal post (34), and the leaf spring plug-in power drive unit (331) is connected with the cable connection output port (311).

5. The combined switch for mine use, flame-proof and intrinsically safe load center of claim 4, characterized in that: The leaf spring plug-in power drive unit (331) is a 1.14kv / 400A leaf spring plug-in power drive unit.

6. The combined switch for mine use, flame-proof and intrinsically safe load center of claim 4, characterized in that: The explosion-proof box body (31) is provided with a front quick-opening door mechanism (312) on the front side, and is provided with a rear quick-opening door mechanism on the rear side, when one of the front quick-opening door mechanism (312) and the rear quick-opening door mechanism is opened, the multi-circuit output combination switch (3) is powered off.

7. The combined switch for mine use, flame-proof and intrinsically safe load center of claim 1, characterized in that: The multi-circuit output combination switch (3) is further provided with a backup protection unit, which is electrically connected with the high-voltage switch (1). When the backup protection unit detects that the multi-circuit output combination switch (3) is at low voltage, the high-voltage switch (1) works normally. When the backup protection unit detects that the multi-circuit output combination switch (3) is at high voltage, the high-voltage switch (1) is forced to trip.

Images