Motor explosion-proof box

Abstract

The utility model discloses a motor explosion-proof box, comprising an explosion-proof box, the top of the explosion-proof box is provided with a top cover, the interior of the explosion-proof box is movably connected with a mounting plate, and the mounting plate is detachably and fixedly connected with a motor; the side wall of the explosion-proof box is rotationally connected with a transmission shaft, and the output end of the motor is connected with the transmission shaft. In conclusion, the explosion-proof motor overcomes the defects in the prior art, is reasonable in design, enables a common motor to have the explosion-proof characteristic by arranging the adjustable motor in the explosion-proof box, improves the application range, and has higher social use value and application prospect.

Description

Technical Field

[0001] This utility model relates to the field of motor explosion-proof technology, and in particular to a motor explosion-proof box. Background Technology

[0002] In new construction projects, servo motors are required in flammable and explosive hazardous locations, but it is often difficult to find suitable explosion-proof servo motors that meet explosion-proof requirements, and even if they are found, the price of such explosion-proof servo motors is very expensive.

[0003] As the country's requirements for safe production become increasingly stringent, the rectification of safety hazards in the explosion-proof aspects of some existing production equipment has been put on the agenda. However, due to the limitations of the technology at the time, some of the equipment used in these early projects used ordinary non-explosion-proof servo motors, and some of them were even imported. It was difficult to find suitable explosion-proof servo motors to replace them, which affected the progress of the equipment's transformation in terms of explosion-proof safety hazards and prevented the elimination of safety hazards. To solve the above problems, we now provide a motor explosion-proof box that can enable ordinary motors to have explosion-proof characteristics. Utility Model Content

[0004] In order to solve the problems mentioned in the background art, the present invention provides an explosion-proof box for motors.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An explosion-proof enclosure for an electric motor includes an explosion-proof enclosure with a top cover. An installation plate is movably connected inside the explosion-proof enclosure, and a motor is detachably and fixedly connected to the installation plate. A drive shaft is rotatably connected to the side wall of the explosion-proof enclosure, and the output end of the motor is connected to the drive shaft.

[0007] Preferably, guide rods are provided at the four corners of the explosion-proof box, and the mounting plate is slidably connected to the guide rods.

[0008] Preferably, the top of the mounting plate is detachably and fixedly connected to the motor by connecting bolts.

[0009] Preferably, the explosion-proof box has a horizontally fixed frame on its inner side wall, a threaded rod rotatably connected to the fixed frame, and a movable block on the side wall of the mounting plate, the movable block being threadedly connected to the threaded rod.

[0010] Preferably, the explosion-proof enclosure has an explosion-proof gland on its side wall, and the input cable for connecting the motor passes through the explosion-proof gland and is introduced into the explosion-proof enclosure.

[0011] Preferably, a heat-conducting plate is vertically fixed to the top of the fixing frame, and a cooling pipe is fixedly connected to the inner side wall of the heat-conducting plate.

[0012] Preferably, the cooling pipe is provided with fins.

[0013] Preferably, the cooling pipe is provided with an inlet and an outlet at both ends.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting up an explosion-proof enclosure, the electrical sparks generated by the motor due to electrical faults are confined to the explosion-proof enclosure and will not affect the environment outside the enclosure.

[0016] 2. By sliding the mounting plate on the guide rod, the position of the motor can be adjusted so that the motor output end corresponds to the drive shaft, and the explosion-proof box can be adapted to various types of motors.

[0017] 3. Coolant enters the cooling pipe through the inlet, carrying away the heat inside the explosion-proof box. The coolant flows out through the outlet, thereby cooling the inside of the explosion-proof box and ensuring that the motor operates in a normal temperature environment, eliminating potential safety hazards during motor use.

[0018] In summary, this utility model overcomes the shortcomings of the prior art, has a reasonable design, and enables ordinary motors to have explosion-proof characteristics by setting an adjustable motor in the explosion-proof box, thereby improving the scope of application and having high social use value and application prospects. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the cooling pipe structure of this utility model.

[0024] In the diagram: Explosion-proof box 1, top cover 2, fixing bolt 201, fixing frame 11, threaded rod 111, turning block 112, mounting plate 12, moving block 121, guide rod 113, motor 3, connecting bolt 301, drive shaft 31, sliding bearing 311, input cable 32, explosion-proof gland 321, cooling pipe 4, liquid inlet 401, liquid outlet 402, fins 41. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Example 1

[0027] Reference Figure 1-4 An explosion-proof enclosure for a motor includes an explosion-proof enclosure 1. A top cover 2 is detachably and fixedly connected to the top of the explosion-proof enclosure 1 by fixing bolts 201. A fixing frame 11 is horizontally provided on the inner side wall of the explosion-proof enclosure 1. Guide rods 113 are provided at the four corners of the explosion-proof enclosure 1. Mounting plates 12 are slidably connected to the guide rods 113. A motor 3 is detachably and fixedly connected to the top of the mounting plate 12 by connecting bolts 301. A drive shaft 31 is rotatably connected to the side wall of the explosion-proof enclosure 1. A sliding bearing 311 is provided at the connection between the drive shaft 31 and the explosion-proof enclosure 1 to maintain the seal of the interior of the explosion-proof enclosure 1 while the drive shaft 31 rotates. The output end of the motor 3 is connected to the drive shaft 31. The position of the motor 3 can be adjusted by sliding the mounting plate 12 on the guide rods 113 so that the output end of the motor 3 corresponds to the drive shaft 31. The explosion-proof enclosure 1 can be adapted to various models of motors 3.

[0028] A threaded rod 111 is rotatably connected to the fixed frame 11. A movable block 121 is provided on the side wall of the mounting plate 12. The movable block 121 is threadedly connected to the threaded rod 111. A screwing block 112 is provided at the top of the threaded rod 111. The screwing block 112 is hexagonal. The screwing block 112 can be rotated by a corresponding tool to drive the threaded rod 111 to rotate, thereby adjusting the height of the mounting plate 12 so that the height of the motor 3 can be adjusted to the position corresponding to the transmission shaft 31.

[0029] Furthermore, the explosion-proof enclosure 1 is provided with an explosion-proof gland 321 on its side wall. The input cable 32 of the motor 3 passes through the explosion-proof gland 321 and is introduced into the interior of the explosion-proof enclosure 1. After the explosion-proof gland 321 locks the input cable 32, it can seal the wire hole of the input cable 32.

[0030] The rotating block 112 can be rotated using the corresponding tool, which drives the threaded rod 111 to rotate, thereby adjusting the height of the mounting plate 12 so that the motor 3 is adjusted to the position corresponding to the transmission shaft 31. Through the setting of the explosion-proof box 1, the electric sparks generated by the motor 3 due to electrical faults are confined to the explosion-proof box 1 and will not affect the environment outside the explosion-proof box 1.

[0031] Example 2

[0032] A heat-conducting plate is vertically fixed to the top of the fixed frame 11. A cooling pipe 4 is fixedly connected to the inner side wall of the heat-conducting plate. The cooling pipe 4 is provided with fins 41. The two ends of the cooling pipe 4 are respectively provided with liquid inlet 401 and liquid outlet 402.

[0033] Coolant enters the cooling pipe through the inlet 401, carrying away the heat inside the explosion-proof box 1. The coolant flows out through the outlet 402, thereby cooling the inside of the explosion-proof box 1 and ensuring that the motor 3 operates in a normal temperature environment, eliminating potential safety hazards during motor use.

[0034] Working principle: By using the corresponding tool to rotate the screw block 112, the threaded rod 111 is rotated, thereby adjusting the height of the mounting plate 12 so that the height of the motor 3 is adjusted to the position corresponding to the transmission shaft 31. Through the setting of the explosion-proof box 1, the electric sparks generated by the motor 3 due to electrical faults are confined to the explosion-proof box 1 and will not affect the environment outside the explosion-proof box 1.

[0035] Coolant enters the cooling pipe through the inlet 401, carrying away the heat inside the explosion-proof box 1. The coolant flows out through the outlet 402, thereby cooling the inside of the explosion-proof box 1 and ensuring that the motor 3 operates in a normal temperature environment, eliminating potential safety hazards during motor use.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An explosion-proof box for an electric machine, characterized in that Comprising The explosion-proof box (1) is provided with a top cover (2) on the top, and a mounting plate (12) is movably connected inside the explosion-proof box (1), and a motor (3) is detachably and fixedly connected on the mounting plate (12); The explosion-proof box (1) is provided with a transmission shaft (31) rotatably connected to the side wall, and the output end of the motor (3) is connected to the transmission shaft (31); The explosion-proof box (1) is provided with an explosion-proof gland (321) on the side wall, and the input cable (32) of the motor (3) is introduced into the explosion-proof box (1) through the explosion-proof gland (321); The explosion-proof box (1) is provided with a guide rod (113) at the four corners, and the mounting plate (12) is slidably connected to the guide rod (113); The mounting plate (12) is detachably and fixedly connected to the motor (3) through a connecting bolt (301) at the top end; The explosion-proof box (1) is provided with a fixed frame (11) horizontally on the inner side wall, a threaded rod (111) is rotatably connected to the fixed frame (11), a moving block (121) is provided on the side wall of the mounting plate (12), and the moving block (121) is threadedly connected to the threaded rod (111).

2. A flameproof enclosure for an electric machine according to claim 1, characterized in that: The fixed frame (11) is vertically and fixedly connected with a heat-conducting plate, and the inner side wall of the heat-conducting plate is fixedly connected with a cooling pipe (4).

3. A flameproof enclosure for an electric machine according to claim 2, characterized in that: The cooling pipe (4) is provided with fins (41).

4. A flameproof enclosure for an electric machine according to claim 3, characterized in that: The cooling pipe (4) is provided with an inlet (401) and an outlet (402) at both ends, respectively.

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