Mining explosion-proof soft starting device

Abstract

The utility model relates to the technical field of explosion-proof soft starting devices, in particular to a mining explosion-proof soft starting device which comprises a bottom plate and an explosion-proof soft starting device body, a fixing plate is installed on the upper end face of the bottom plate, dampers distributed in an array mode are fixedly connected to the upper end face of the fixing plate, and the dampers are used for buffering protection. According to the explosion-proof soft starting device, the damper can provide resistance during vibration and is used for reducing the vibration capacity, so that the vibration amplitude during movement of the explosion-proof soft starting device can be reduced, and then the elastic force of the first spring and the second spring can be used for further elastically buffering the vibration force; according to the explosion-proof soft starting device, the stability and safety of the explosion-proof soft starting device during movement are guaranteed, the explosion-proof soft starting device can adapt to the complex mine hole ground, the explosion-proof soft starting device can be positioned in a mine hole through installation of the supporting legs and the ground sinking nails, and the stability of the explosion-proof soft starting device during use is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of flameproof soft starting devices, and specifically relates to a mine-used flameproof soft starting device. Background Technique

[0002] A flameproof soft starting device is a novel motor control device that integrates functions such as soft starting, soft stopping, light-load energy saving, and multiple protection functions of a motor. It is often connected to the monitoring system of the coal mine underground power grid, and can realize remote monitoring and control of switch equipment, and realize modern management such as unattended operation. In order to control coal mining, a flameproof soft starting device is required.

[0003] In the prior art, the patent application number "CN202122044763.4" is disclosed, which is a mine-used flameproof intelligent trolley type high-voltage soft starting device, including a support box body. The top of the support box body is fixedly installed with a main body. Through holes are opened on both sides of the bottom of the support box body. On both sides of the top of the support box body and located on both sides of the main body, support frames are welded. Through the transmission of the transmission mechanism, two contact methods of hard contact and rolling contact between the flameproof intelligent trolley type high-voltage soft starting device and the ground are realized.

[0004] This soft starting device can only buffer the jitter amplitude generated during movement in a simple way. Such a flameproof soft starting device is difficult to adapt to the complex mine floor, making it impossible to buffer and consume the vibration force during movement well, which may damage the flameproof soft starting device itself, thus affecting the safety during the use of the flameproof soft starting device and being inconvenient to use. Content of the Utility Model

[0005] The purpose of the utility model is to provide a mine-used flameproof soft starting device to solve the problems raised in the above background technique.

[0006] The purpose of the utility model can be realized through the following technical solutions:

[0007] A mine-used flameproof soft starting device includes a bottom plate and a flameproof soft starting device main body. On the upper end surface of the bottom plate, a fixing plate is installed. On the upper end surface of the fixing plate, damping devices are fixedly connected in an array distribution for buffering and protection. On the upper end surface of the damping devices, a mounting frame is fixedly installed. On the lower end surface of the mounting frame, two first fixing seats are fixedly connected. Inside both of the two first fixing seats, two first connecting rotating plates are rotatably connected.

[0008] On the upper end surface of the fixing plate, two second fixing seats are fixedly connected. Inside both of the two second fixing seats, two second connecting rotating plates are rotatably connected. One end of the first connecting rotating plate away from the first fixing seat is rotatably connected to both ends of the corresponding second connecting rotating plate. Between the first fixing seat and the second fixing seat, two first springs are fixedly installed, and a circular seat is fixedly arranged between the two first springs.

[0009] Preferably, four universal wheels for movement are respectively installed on the lower end surface of the bottom plate, guide columns distributed in an array are installed on the upper end surface of the fixing plate, and cross plates are fixedly connected to both ends of the mounting frame.

[0010] Preferably, the outer surface of the guide column is slidably connected to both ends of the cross plate, second springs are connected in an array between the cross plate and the fixing plate, one side of the second spring is connected to the lower end surface of the cross plate, and the other side of the second spring is connected to the upper end surface of the fixing plate.

[0011] Preferably, a first threaded rod and a second threaded rod are respectively rotatably connected to the bottom end inside the mounting frame. Both ends of the first threaded rod penetrate through the mounting frame and extend to both ends of the mounting frame. A servo motor is fixedly connected to the lower end surface of the first threaded rod through a motor mounting plate. A lifting frame for lifting adjustment is threadedly connected to the outer surfaces of the first threaded rod and the second threaded rod together. A retaining seat is installed on the upper end surface of the lifting frame, and the main body of the flameproof soft starter is located inside the retaining seat.

[0012] Preferably, fastening bolts are threadedly connected to all four sides of the retaining seat. The inner side surface of the fastening bolt penetrates through the retaining seat and extends to the inside of the retaining seat. A positioning disk for fixing the main body of the flameproof soft starter is installed on the inner side surface of the fastening bolt.

[0013] Preferably, the upper side of the second threaded rod penetrates through the mounting frame and extends to the upper end surface of the mounting frame. A first belt pulley is connected to the upper end surface of the first threaded rod, a second belt pulley is connected to the upper end surface of the second threaded rod, the first belt pulley and the second belt pulley are connected by belt drive, and vertical rods are connected in an array at both ends inside the mounting frame.

[0014] Preferably, four connecting blocks are fixedly installed on the upper end surface of the bottom plate. Support legs for supporting the main body of the flameproof soft starter are slidably clamped on one side of the four connecting blocks. Ground nails for positioning the bottom plate are clamped inside the four support legs. Plug rods are clamped on the upper end surfaces of the four connecting blocks and the support legs.

[0015] Preferably, a telescopic base is slidably connected to the upper end surface of the fixing plate. Third springs are connected in an array between the telescopic base and the fixing plate. One side of the third spring is connected to the lower end surface of the telescopic base, and the other side of the third spring is connected to the upper end surface of the fixing plate.

[0016] The beneficial effects of the present utility model:

[0017] 1. The utility model can provide resistance during vibration by using a damper, which is used to reduce the vibration energy. In this way, the vibration amplitude during the movement of the explosion-proof soft starter can be reduced, making the entire explosion-proof soft starter more stable. Subsequently, the elastic forces of the first spring and the second spring can further elastically buffer the vibration force, ensuring the safety during the movement of the explosion-proof soft starter, enabling the explosion-proof soft starter to adapt to the complex mine floor, and extending the service life of the explosion-proof soft starter.

[0018] 2. The utility model can be clamped and fixed around the explosion-proof soft starter by using four positioning discs to ensure the stability during the use of the explosion-proof soft starter. Subsequently, the lifting frame can also drive the explosion-proof soft starter to perform lifting adjustment, enabling the explosion-proof soft starter to adapt to different mine environments. At the same time, the installation of the support legs and the ground nails can position the explosion-proof soft starter in the mine, ensuring its stability during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is the schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 is the present utility model Figure 1 is the schematic diagram of the telescopic base and the third spring in the present utility model;

[0022] Figure 3 is the present utility model Figure 2 is the enlarged view of part A in the present utility model;

[0023] Figure 4 is the present utility model Figure 1 is the installation schematic diagram of the first threaded rod, the second threaded rod and the lifting frame in the present utility model;

[0024] Figure 5 is the present utility model Figure 1 is the schematic diagram of the fastening bolt and the positioning disc in the present utility model;

[0025] Figure 6 is the present utility model Figure 1 is the installation schematic diagram of the support leg and the ground nail in the present utility model;

[0026] The reference numerals in the drawings are as follows:

[0027] 1. Bottom plate; 2. Universal wheels; 3. Fixed plate; 4. Damper; 5. Mounting bracket; 6. Main body of flameproof soft starter device; 7. First fixed seat; 8. First connecting rotary plate; 9. Second connecting rotary plate; 10. Second fixed seat; 11. First spring; 12. Round seat; 13. Guide post; 14. Horizontal plate; 15. Second spring; 16. First threaded rod; 17. Servo motor; 18. Second threaded rod; 19. Lifting frame; 20. Stop seat; 21. First pulley; 22. Second pulley; 23. Vertical rod; 24. Tightening bolt; 25. Positioning disk; 26. Connecting block; 27. Support leg; 28. Ground anchor; 29. Insert rod; 30. Telescopic base; 31. Third spring. Detailed implementation manner

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] As Figures 1 to 6 shown, a flameproof soft starter device for mining includes a bottom plate 1 and a main body 6 of the flameproof soft starter device. The flameproof soft starter device can be used to safely start and stop the motor, and also provides overcurrent protection and low voltage protection. In this way, the flameproof soft starter device can be used to protect mining equipment and extend the service life of mining equipment. On the upper end surface of the current bottom plate 1, a fixed plate 3 is installed. On the upper end surface of the fixed plate 3, a plurality of dampers 4 distributed in an array are fixedly connected. The dampers 4 are used for buffer protection. On the upper end surface of the dampers 4, a mounting bracket 5 is fixedly installed. On the lower end surface of the mounting bracket 5, two first fixed seats 7 are fixedly connected. Inside each of the two first fixed seats 7, two first connecting rotary plates 8 are rotatably connected;

[0030] On the upper end surface of the fixed plate 3, two second fixed seats 10 are fixedly connected. Inside each of the two second fixed seats 10, two second connecting rotary plates 9 are rotatably connected. One end of the first connecting rotary plate 8 away from the first fixed seat 7 is rotatably connected to both ends of the second connecting rotary plate 9 at the corresponding position. Between the first fixed seat 7 and the second fixed seat 10, two first springs 11 are fixedly installed. Between the two first springs 11, a round seat 12 is fixedly provided. Through the installation and use of the first spring 11 and the round seat 12, when the vibration force is transmitted to the mounting bracket 5, the first fixed seat 7 and the second fixed seat 10 will simultaneously squeeze the first spring 11 at the round seat 12. In this way, the entire mounting bracket 5 repeatedly consumes the vibration force to elastically protect the flameproof soft starter device.

[0031] Four universal wheels 2 for movement are respectively installed on the lower end surface of the bottom plate 1. Through the arrangement of the universal wheels 2, the entire flameproof soft starter device can be driven to move in the mine by the universal wheels 2, which saves time and effort and is convenient to use. Guide posts 13 distributed in an array are installed on the upper end surface of the fixing plate 3, and cross plates 14 are fixedly connected to both ends of the mounting frame 5.

[0032] The outer surface of the guide post 13 is slidably connected to both ends of the cross plate 14. A second spring 15 is connected in an array between the cross plate 14 and the fixing plate 3. One side of the second spring 15 is connected to the lower end surface of the cross plate 14, and the other side of the second spring 15 is connected to the upper end surface of the fixing plate 3.

[0033] At the bottom end inside the mounting frame 5, a first threaded rod 16 and a second threaded rod 18 are respectively rotatably connected. Both ends of the first threaded rod 16 penetrate through the mounting frame 5 and extend to both ends of the mounting frame 5. A servo motor 17 is fixedly connected to the lower end surface of the first threaded rod 16 through a motor mounting plate. A lifting frame 19 for lifting adjustment is threadedly connected to the outer surfaces of the first threaded rod 16 and the second threaded rod 18 together. A retaining seat 20 is installed on the upper end surface of the lifting frame 19. Through the arrangement of the retaining seat 20, the retaining seat 20 can be used to limit the flameproof soft starter device. The flameproof soft starter device main body 6 is located inside the retaining seat 20.

[0034] Four fastening bolts 24 are threadedly connected to the periphery of the retaining seat 20. The inner side surface of the fastening bolt 24 penetrates through the retaining seat 20 and extends to the inside of the retaining seat 20. A positioning disc 25 for fixing the flameproof soft starter device main body 6 is installed on the inner side surface of the fastening bolt 24.

[0035] The upper side of the second threaded rod 18 penetrates through the mounting frame 5 and extends to the upper end surface of the mounting frame 5. A first pulley 21 is connected to the upper end surface of the first threaded rod 16, a second pulley 22 is connected to the upper end surface of the second threaded rod 18, and the first pulley 21 and the second pulley 22 are connected by a belt drive. Vertical rods 23 are connected in an array at both ends inside the mounting frame 5. Through the arrangement of the vertical rods 23, the vertical rods 23 can be used to support and limit the lifting frame 19, so that the lifting frame 19 can be lifted and lowered smoothly.

[0036] Four connecting blocks 26 are fixedly installed on the upper end surface of the bottom plate 1. A support leg 27 for supporting the flameproof soft starter device main body 6 is slidably clamped on one side of each of the four connecting blocks 26. A ground anchor 28 for positioning the bottom plate 1 is clamped inside each of the four support legs 27. Plug rods 29 are clamped on the upper end surfaces of the four connecting blocks 26 and the support legs 27. Through the arrangement of the plug rods 29, the plug rods 29 can be used to fix the support legs 27, so that the support legs 27 can stably support the bottom plate 1.

[0037] A telescopic base 30 is slidably connected to the upper end surface of the fixed plate 3. A third spring 31 is connected in an array between the telescopic base 30 and the fixed plate 3. Through the installation and use of the telescopic base 30 and the third spring 31, the elastic telescopic base 30 can support under the mounting bracket 5 to buffer the explosion-proof soft starter device at the bottom, better protecting the explosion-proof soft starter device. One side of the third spring 31 is connected to the lower end surface of the telescopic base 30, and the other side of the third spring 31 is connected to the upper end surface of the fixed plate 3.

[0038] The working principle of a mine explosion-proof soft starter device provided by the present utility model is as follows:

[0039] By using the damper 4, the resistance during vibration can be provided to reduce the vibration energy, thereby reducing the vibration amplitude when the explosion-proof soft starter device moves, making the entire explosion-proof soft starter device more stable, and thus improving the stability of the explosion-proof soft starter device. Then, in cooperation with the two first springs 11 at the round seat 12, the elastic force of the first springs 11 allows the first connecting rotating plate 8 and the second connecting rotating plate 9 at the first fixing seat 7 and the second fixing seat 10 to rotate back and forth relative to each other, further buffering and protecting the explosion-proof soft starter device. Then, using the elastic force of the second spring 15, the explosion-proof soft starter device body 6 at the mounting bracket 5 can move up and down along the guide post 13, thereby elastically buffering the vibration force, ensuring the safety when the explosion-proof soft starter device moves, enabling the explosion-proof soft starter device to adapt to the complex mine floor, and extending the service life of the explosion-proof soft starter device.

[0040] By placing the explosion-proof soft starter device body 6 into the retaining seat 20 at the lifting frame 19 and then rotating the fastening bolts 24 respectively, the fastening bolts 24 will drive the four positioning discs 25 to move and clamp around the explosion-proof soft starter device to ensure the stability during use. Then, the output shaft of the servo motor 17 drives the first threaded rod 16 to rotate. Using the first pulley 21, the second pulley 22 and the belt, the first threaded rod 16 can drive the second threaded rod 18 to rotate together, so that the lifting frame 19 can drive the explosion-proof soft starter device to perform lifting adjustment, enabling the explosion-proof soft starter device to adapt to different mine environments. Then, the four support legs 27 are inserted into the four connecting blocks 26 in sequence, and the four insertion rods 29 are inserted into the support legs 27 until the ground nails 28 enter the mine floor. In this way, the support legs 27 and the ground nails 28 can position the explosion-proof soft starter device in the mine to ensure its stability during use.

[0041] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. A flameproof soft starter for mining, comprising a base plate (1) and a flameproof soft starter body (6), characterized in that: The upper end surface of the bottom plate (1) is installed with a fixing plate (3), the upper end surface of the fixing plate (3) is fixedly connected with an array-distributed damper (4), the damper (4) is used for buffering protection, the upper end surface of the damper (4) is fixedly installed with a mounting frame (5), the lower end surface of the mounting frame (5) is fixedly connected with two first fixing seats (7), and the interiors of the two first fixing seats (7) are both rotatably connected with two No. 1 connecting rotating plates (8); The upper end surface of the fixed plate (3) is fixedly connected to two second fixed seats (10), and the interiors of the two second fixed seats (10) are rotatably connected to two second connecting rotary plates (9), and one end of the first connecting rotary plate (8) away from the first fixed seat (7) is rotatably connected to the two ends of the second connecting rotary plate (9) at the corresponding position, and two first springs (11) are fixedly installed between the first fixed seat (7) and the second fixed seat (10), and a round seat (12) is fixedly provided between the two first springs (11).

2. A mine flameproof soft starting device according to claim 1, characterized in that: The lower end surface of the base plate (1) is respectively mounted with four universal wheels (2) for movement, the upper end surface of the fixed plate (3) is mounted with guide columns (13) distributed in an array, and both ends of the mounting frame (5) are fixedly connected with transverse plates (14).

3. A mine flameproof soft starting device according to claim 2, characterized in that: The outer surface of the guide column (13) is slidably connected to the two ends of the transverse plate (14), and a second spring (15) is connected in an array between the transverse plate (14) and the fixed plate (3), one side of the second spring (15) is connected to the lower end surface of the transverse plate (14), and the other side of the second spring (15) is connected to the upper end surface of the fixed plate (3).

4. A mine flameproof soft starting device according to claim 1, characterized in that: The bottom end of the interior of the mounting frame (5) is rotatably connected to a first threaded rotating rod (16) and a second threaded rotating rod (18), respectively; both ends of the first threaded rotating rod (16) penetrate the mounting frame (5) and extend to both ends of the mounting frame (5); the lower end surface of the first threaded rotating rod (16) is fixedly connected to a servo motor (17) via a motor mounting plate; the outer surfaces of the first threaded rotating rod (16) and the second threaded rotating rod (18) are threadedly connected to a lifting frame (19) for lifting and lowering adjustment; a stopper (20) is installed on the upper end surface of the lifting frame (19); and the flameproof soft starter device body (6) is located inside the stopper (20).

5. A mine flameproof soft starting device according to claim 4, characterized in that: The block seat (20) is threadedly connected with fastening bolts (24) on all sides, the inner side of the fastening bolts (24) penetrates the block seat (20) and extends into the interior of the block seat (20), and a positioning plate (25) for fixing the flameproof soft starter body (6) is mounted on the inner side of the fastening bolts (24).

6. A mine flameproof soft starting device according to claim 4, characterized in that: The upper side of the second threaded rotating rod (18) passes through the mounting frame (5) and extends to the upper end surface of the mounting frame (5); the upper end surface of the first threaded rotating rod (16) is connected to a first pulley (21); the upper end surface of the second threaded rotating rod (18) is connected to a second pulley (22); the first pulley (21) and the second pulley (22) are connected via a belt transmission; and vertical rods (23) are connected to the array at both ends of the mounting frame (5).

7. A mine flameproof soft starting device according to claim 1, characterized in that: Four connecting blocks (26) are fixedly mounted on the upper end surface of the base plate (1); one side of each of the four connecting blocks (26) is slidably clamped with a supporting leg (27) for supporting the flameproof soft start device body (6); insides of each of the four supporting legs (27) are clamped with a ground nail (28) for positioning the base plate (1); and upper end surfaces of each of the four connecting blocks (26) and the supporting legs (27) are clamped with an insert rod (29).

8. A mine flameproof soft starting device according to claim 1, characterized in that: The upper end surface of the fixed plate (3) is slidably connected to a telescopic base (30), and a third spring (31) is connected in an array between the telescopic base (30) and the fixed plate (3), one side of the third spring (31) is connected to the lower end surface of the telescopic base (30), and the other side of the third spring (31) is connected to the upper end surface of the fixed plate (3).

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