Explosion-proof electric control device for motor of coal mining machine

Abstract

The utility model relates to the technical field of motor control, and discloses an explosion-proof coal mining machine motor electric control device comprising a housing, the right side of the housing is fixedly connected with a ventilation box, the right side in the ventilation box is provided with a ventilation hole, the top of the inner wall of the ventilation box is provided with a trigger button, and the top of the inner wall of the ventilation box is provided with a switch. A trigger button is arranged in the shell, a glass body is arranged at the bottom of the trigger button, a connecting ring is fixedly connected to the exterior of the glass body, a connecting column is fixedly connected to the left side of the exterior of the connecting ring, a ventilation opening is formed in the shell, and two sliding grooves are formed in the interior, namely the upper side and the lower side of the ventilation opening, of the shell. According to the utility model, ventilation can be ensured when the temperature is normal, ventilation can be quickly blocked and an alarm can be given when the temperature is high, external explosion sparks are effectively prevented from entering, the safety of internal elements is protected, corresponding actions are triggered based on the temperature, the ventilation and explosion-proof functions are realized through a simple and reliable mechanical structure, and the safety and the reliability of equipment in a dangerous environment are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor control technical field especially relates to a kind of explosion-proof coal winning machine motor electric control device. BACKGROUND

[0002] Coal winning machine motor electric control device is the key component of coal winning machine, responsible for controlling motor operation, ensure that coal winning machine works efficiently and stably, it realizes the operation of motor starting, stopping, speed regulation and steering etc.

[0003] Explosion-proof coal winning machine motor electric control device is used to control the operation of coal winning machine motor, and has explosion-proof function, can be used in dangerous environment of coal mine, is the key equipment, receives operating instruction by internal circuit, accurately controls the starting, stopping, speed and steering of motor, simultaneously prevents explosion accident by using explosion-proof housing, intrinsically safe circuit etc.

[0004] In prior art, part of coal winning machine motor electric control device has certain explosion-proof function, because in actual use process, due to the harsh environment of coal mine, such as damp, high temperature, strong vibration etc. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides an explosion-proof coal winning machine motor electric control device, aiming at improving the problem that internal electrical components are exposed to explosive hazardous environment and cause explosion accident in prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides an explosion -proof type coal winning machine motor electric control device, including the casing, the right side fixed connection of casing has the ventilation box, the inside right side of ventilation box is opened the ventilation hole, the inner wall top of ventilation box is provided with trigger button, the bottom of trigger button is provided with glass body, the outside fixed connection of glass body has the connecting ring, the outside left side fixed connection of connecting ring has the connecting column, the inside of casing is opened the ventilation, the inside of casing that is the upper and lower sides of ventilation is opened two sliding slots, the inside sliding connection of sliding slot has the baffle, the rear side fixed connection of baffle has a plurality of spring no.

[0008] As a further description of the above technical solutions:

[0009] The cable binding assembly includes a connecting block, a cable binding band is rotatably connected to the left side of the connecting block, an adapter block is fixedly connected to the rear side of the bottom plate, a plurality of limiting holes are formed in the interior of the cable binding band and the interior of the adapter block, a rotating block is rotatably connected to the interior of the adapter block, a rotating groove is formed in the interior of the adapter block, two springs no.

[0010] As a further description of the above technical solutions:

[0011] The rear side of the connecting column is rotatably connected to the front side of the baffle, and the rear side of a plurality of spring no.

[0012] As a further description of the above technical solutions:

[0013] The right side of the casing is fixedly connected with an alarm, and the top of the casing is detachably connected with a top cover.

[0014] As a further description of the above technical solutions:

[0015] When the glass body explodes and disintegrates due to high temperature, the trigger button is triggered to alarm, and the restriction of the baffle by the connecting column is released.

[0016] As a further description of the above technical solutions:

[0017] The baffle is pushed to slide and block the ventilation opening by the elastic action of a plurality of spring no. to complete the ventilation explosion -proof, and a motor no.

[0018] As a further description of the above technical solutions:

[0019] The outer part of the limiting column and the inner part of the limiting hole are in contact, and the rear sides of the two springs II are fixedly connected to the front side of the rotating block;

[0020] As a further description of the above technical solution:

[0021] Rotating the rotating block makes the cable tie pass through the cable bundling, and after the cable bundling is completed, the rotating block is reset by the elastic action of the spring II, thereby driving the limiting column to be clamped into the inner part of the limiting hole to complete the fixing.

[0022] The utility model has the advantages of the following beneficial effects:

[0023] 1、the utility model discloses, and the glass body meets high temperature explosion disintegration, triggers trigger button alarm, and simultaneously removes the restriction of connecting post to baffle, and the elastic action of multiple spring I promotes the sliding of baffle, and blocks the air vent, thereby realizeable when guaranteeing ventilation at normal temperature, and when high temperature, rapidly cut off ventilation and alarm, effectively prevent the outside explosion spark from entering, protect the safety of internal components, based on temperature trigger corresponding action, realize the ventilation explosion -proof function with simple and reliable mechanical structure, improve the safety and reliability of equipment in dangerous environment.

[0024] 2、the utility model discloses, through rotating rotating block, makes limiting column separate from limiting hole, and after cable bundling is completed, the rotating block is loosened, and the rotating block is reset by the elastic action of spring II, and the limiting column is clamped into the limiting hole again, and the cable tie is fixed, thereby realizeable only simple rotating action can complete the release and fixing of limiting, greatly improve the operation efficiency of cable bundling, effectively avoid the short circuit, open circuit and other faults caused by line disorder. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a three-dimensional schematic view of the explosion-proof motor electric control device of the coal mining machine;

[0026] Figure 2 It is a structural schematic view of the top cover of the explosion-proof motor electric control device of the coal mining machine;

[0027] Figure 3 It is a structural schematic view of the bottom plate of the explosion-proof motor electric control device of the coal mining machine;

[0028] Figure 4 It is Figure 2 The enlarged view of A in the middle.

[0029] LEGEND:

[0030] 1, shell; 2, ventilation box; 3, ventilation hole; 4, trigger button; 5, glass body; 6, connecting ring; 7, connecting column; 8, ventilation port; 9, baffle; 10, sliding groove; 11, spring one; 12, bottom plate; 13, connecting block; 14, wire binding belt; 15, limiting hole; 16, adapter block; 17, rotating block; 18, rotating groove; 19, spring two; 20, limiting column; 21, alarm; 22, top cover; 23, motor one. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] Referring to Figure 1 , Figure 2 and Figure 4 , the utility model provides an embodiment: a kind of explosion-proof motor control device of coal winning machine, including shell 1, shell 1 provides installation space and protection for internal element, the right side of shell 1 is fixedly connected with ventilation box 2, ventilation box 2 provides installation space for internal element, ventilation hole 3 is established in the inside right side of ventilation box 2, ventilation hole 3 facilitates air flow, trigger button 4 is arranged on the inner wall top of ventilation box 2, trigger button 4 is used to trigger alarm, trigger button 4 is provided with glass body 5 in the bottom, glass body 5 explodes and disintegrates when high temperature, and then triggers trigger button 4 to alarm, connecting ring 6 is fixedly connected outside glass body 5, and connecting ring 6 provides fixed and supporting effect to connecting column 7;

[0033] connecting column 7 is fixedly connected to the left side of connecting ring 6, and connecting column 7 plays the role of connecting ring 6 and baffle 9, ventilation port 8 is established in the inside of shell 1, and ventilation port 8 is used to flow air to the inside of shell 1 into ventilation box 2, two sliding grooves 10 are established in the upper and lower sides of ventilation port 8, i.e. the inside of shell 1, and sliding groove 10 provides guiding and limiting effect for baffle 9, baffle 9 is slidably connected in the inside of sliding groove 10, and baffle 9 is used to block ventilation port 8, to prevent external explosion sparks from entering the inside of shell 1, a plurality of spring one 11 are fixedly connected to the rear side of baffle 9, spring one 11 has elastic effect, a plurality of bottom plates 12 are fixedly connected to the inner wall of shell 1, and bottom plate 12 provides fixed and supporting effect for wire binding assembly, and the rear side of one of bottom plate 12 is fixedly connected with wire binding assembly for fixing cable in the inside of shell 1.

[0034] Referring to Figures 2 to 4The bundle assembly comprises a connecting block 13, which provides fixing and support for the bundle belt 14, the outer left side of the connecting block 13 is rotationally connected with the bundle belt 14, the bundle belt 14 is used for fixing the cable inside the shell 1, the rear side of the bottom plate 12 is fixedly connected with a connecting block 16, the connecting block 16 provides a mounting space for the fixing assembly, a plurality of limiting holes 15 are formed in the interiors of the bundle belt 14 and the connecting block 16, the limiting holes 15 are matched with the limiting column 20 to complete fixing, the interior of the connecting block 16 is rotationally connected with a rotating block 17, the rotating block 17 is convenient for a user to rotate to drive the limiting column 20 to move, so that the limiting column 20 is separated from the interior of the limiting hole 15, a rotating groove 18 is formed in the interior of the connecting block 16, the rotating groove 18 provides a rotating space for the rotating block 17, the inner wall front side of the rotating groove 18 is fixedly connected with two spring twos 19, the spring twos 19 have an elastic effect and can pull the rotating block 17 to reset after the rotating block 17 moves, the front side of the rotating block 17 is fixedly connected with the limiting column 20.

[0035] With reference to Figures 1 to 3 The rear side of the connecting column 7 is rotationally connected to the front side of the baffle 9, the baffle 9 is forced by the connecting column 7 to be clamped in the interior of the sliding groove 10 at normal temperature, the rear sides of the plurality of spring ones 11 are fixedly connected to the inner wall rear side of the sliding groove 10, which provides fixing and support for the spring ones 11, the right side of the shell 1 is fixedly connected with an alarm 21, when the alarm 21 sounds, it also sounds to warn others, the top of the shell 1 is detachably connected with a top cover 22, which is convenient for a worker to open the top cover 22 to overhaul and maintain the internal elements, when the glass body 5 explodes and disintegrates due to high temperature, the trigger button 4 is triggered to alarm, when the glass body 5 explodes and disintegrates due to high temperature, the trigger button 4 is triggered to alarm, and the baffle 9 is simultaneously released from the limitation of the connecting column 7, so that the force applied to the connecting ring 6 and the connecting column 7 is released, and the baffle 9 is released from the limitation;

[0036] The baffle 9 is pushed to slide by the elastic effect of the plurality of spring ones 11 to block the air vent 8 to complete ventilation explosion prevention, and the baffle 9 is pushed to slide by the elastic effect of the plurality of spring ones 11 to block the air vent 8 to prevent sparks from entering the interior of the shell 1, complete ventilation explosion prevention, the left side of the shell 1 is provided with a motor one 23, the shell 1 supplies power for the motor one 23, the motor one 23 provides kinetic energy for the coal mining machine, the exterior of the limiting column 20 is in contact with the interior of the limiting hole 15, the limiting hole 15 is matched with the limiting column 20 to complete fixing, the rear sides of the two spring twos 19 are fixedly connected to the front side of the rotating block 17, which provides fixing and support for the spring twos 19;

[0037] Rotating the rotating block 17 makes the cable tie 14 pass through the cable tie, when the cable tie is performed, the cable tie is performed by rotating the rotating block 17, the cable tie is performed by sliding, after the cable tie is completed, the rotating block 17 is reset by the elastic action of the spring two 19, and the limiting column 20 is driven to be clamped into the inside of the limiting hole 15 to complete the fixing, when the cable tie is completed, the rotating block 17 is loosened, the rotating block 17 is reset by the elastic action of the spring two 19, and the limiting column 20 is driven to move, and the limiting column 20 is clamped into the inside of the limiting hole 15, so that the limiting and fixing of the cable tie 14 are completed.

[0038] Working principle: when the device is used, when the ambient temperature is normal, the glass body 5 of the ventilation box 2 remains complete, the glass body 5 applies force to the baffle 9 through the connecting column 7, so that the baffle 9 is clamped in the sliding groove 10, the ventilation opening 8 is normally ventilated, once the external explosion temperature is too high, the glass body 5 explodes and disintegrates due to high temperature, the trigger button 4 is triggered to alarm, and the connecting column 7 is released from the limiting of the baffle 9, the elastic action of the plurality of springs one 11 pushes the baffle 9 to slide, and the baffle 9 blocks the ventilation opening 8, so that the external explosion spark is prevented from entering the inside of the shell 1, the purpose of ventilation and explosion prevention is achieved, and the safety of the elements in the shell 1 is protected.

[0039] When the cable in the shell 1 needs to be tied, the limiting column 20 is separated from the limiting hole 15 by rotating the rotating block 17, and then the movable cable tie 14 is moved to perform the cable tie operation, the rotating block 17 is loosened after the cable tie is completed, the rotating block 17 is reset by the elastic action of the spring two 19, the limiting column 20 is driven to be clamped into the limiting hole 15 again, the cable tie 14 is fixed, the cable tie fixing of the cable is completed, the cable layout is ensured to be neat, the fault caused by the line disorder is prevented, and the equipment operation stability is improved.

[0040] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An explosion-proof coal mining machine motor control device, comprising a housing (1), characterized in that: A ventilation box (2) is fixedly connected to the right side of the housing (1). A ventilation hole (3) is opened on the right side of the inside of the ventilation box (2). A trigger button (4) is provided on the top of the inner wall of the ventilation box (2). A glass body (5) is provided at the bottom of the trigger button (4). A connecting ring (6) is fixedly connected to the outside of the glass body (5). A connecting post (7) is fixedly connected to the left side of the outside of the connecting ring (6). A ventilation opening (8) is opened inside the housing (1). Two sliding grooves (10) are opened on the upper and lower sides of the ventilation opening (8) inside the housing (1). A baffle (9) is slidably connected inside the sliding groove (10). A plurality of springs (11) are fixedly connected to the rear side of the baffle (9). A plurality of base plates (12) are fixedly connected to the inner wall of the housing (1). A cable harness assembly for securing the cables inside the housing (1) is fixedly connected to the rear side of one of the base plates (12).

2. The explosion-proof coal mining machine motor control device according to claim 1, characterized in that: The cable harness assembly includes a connecting block (13), a cable harness strip (14) is rotatably connected to the left side of the connecting block (13), a connecting block (16) is fixedly connected to the rear side of the base plate (12), multiple limiting holes (15) are provided inside the cable harness strip (14) and the connecting block (16), a rotating block (17) is rotatably connected inside the connecting block (16), a rotating groove (18) is provided inside the connecting block (16), two springs (19) are fixedly connected to the front side of the inner wall of the rotating groove (18), and a limiting post (20) is fixedly connected to the front side of the rotating block (17).

3. The explosion-proof coal mining machine motor control device according to claim 1, characterized in that: The rear side of the connecting column (7) is rotatably connected to the front side of the baffle (9), and the rear side of the plurality of springs (11) is fixedly connected to the rear side of the inner wall of the slide (10).

4. The explosion-proof coal mining machine motor control device according to claim 1, characterized in that: An alarm (21) is fixedly connected to the right side of the housing (1), and a top cover (22) is detachably connected to the top of the housing (1).

5. The explosion-proof coal mining machine motor control device according to claim 1, characterized in that: When the glass body (5) explodes and disintegrates due to high temperature, it triggers the trigger button (4) to sound an alarm and at the same time releases the restriction on the baffle (9) through the connecting column (7).

6. The explosion-proof coal mining machine motor control device according to claim 5, characterized in that: The baffle (9) is pushed by the elastic action of multiple springs (11) to slide and block the vent (8) to complete the ventilation and explosion protection. A motor (23) is provided on the left side of the housing (1).

7. The explosion-proof coal mining machine motor control device according to claim 2, characterized in that: The outside of the limiting post (20) is in contact with the inside of the limiting hole (15), and the rear sides of the two springs (19) are fixedly connected to the front side of the rotating block (17).

8. The explosion-proof coal mining machine motor control device according to claim 2, characterized in that: Rotate the rotating block (17) to allow the wire harness (14) to pass through for wire harnessing. After the wire harnessing is completed, the elastic action of the second spring (19) pulls the rotating block (17) back to its original position, thereby causing the limiting post (20) to be inserted into the limiting hole (15) to complete the fixation.

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