Dustproof sealing device for explosion-proof motor

Abstract

The application provides a dustproof sealing device for an explosion-proof motor, and relates to the technical field of explosion-proof motors. The dustproof sealing device for the explosion-proof motor comprises an explosion-proof motor body, further comprises a shell one, the shell one is sleeved on the explosion-proof motor body, the shell one is provided with a shell two through clamping, an L-shaped sliding groove is formed in the inner wall of the shell two, two limiting grooves are formed in one side of the shell two, two limiting blocks are slidably installed in the L-shaped sliding groove, and one end of each of the two limiting blocks is fixed to the circumferential wall of the shell one. The overall device can conduct the heat emitted by the explosion-proof motor body to the heat dissipation copper pipe, and the air blown out by the fan can take the heat on the heat dissipation copper pipe out of the overall device, thereby prolonging the service life of the explosion-proof motor body, playing a heat dissipation role on the explosion-proof motor body, and facilitating the daily maintenance work of personnel. Through simple operation, the shell one and the shell two can be disassembled, the work efficiency of personnel in maintaining the explosion-proof motor body is greatly improved.

Description

Technical Field

[0001] This application relates to the field of explosion-proof motor technology, and in particular to an explosion-proof motor dustproof sealing device. Background Technology

[0002] Explosion-proof motors are specially designed and manufactured electrical devices capable of operating safely in environments containing flammable and explosive substances. Their core feature is that they do not generate electrical sparks during operation, thus preventing explosions. Through high protection levels and precise component combinations, explosion-proof motors minimize the energy of potential explosive factors.

[0003] Currently, existing dustproof sealing devices for explosion-proof motors on the market mostly have the following shortcomings during use: Most existing dustproof sealing devices achieve dustproof sealing by installing a protective shell on the outside of the explosion-proof motor. However, after adding the protective shell, the internal heat dissipation of the explosion-proof motor is difficult to manage, easily leading to overheating and shortening the service life of the motor. Furthermore, after adding the protective shell, routine maintenance cannot be performed directly; the protective shell must be removed before routine maintenance can be carried out. The existing protective shell removal process is too cumbersome, greatly reducing the efficiency of personnel in routine maintenance. Therefore, we propose a dustproof sealing device for explosion-proof motors. Utility Model Content

[0004] This application provides a dustproof sealing device for explosion-proof motors to solve the problems of difficulty in timely heat dissipation inside explosion-proof motors after adding a protective shell and the overly cumbersome process of disassembling the protective shell.

[0005] This application provides a dustproof sealing device for an explosion-proof motor, comprising an explosion-proof motor body, characterized in that it further comprises:

[0006] A first outer casing is fitted onto the explosion-proof motor body. A second outer casing is provided on the first outer casing. The inner wall of the second outer casing has symmetrically formed L-shaped sliding grooves, and one side of the second outer casing has symmetrically formed limit grooves. Limiting blocks that are fixed to the circumferential wall of the first outer casing are slidably installed in both L-shaped sliding grooves. The first outer casing is located between the two limiting blocks. The circumferential wall of the first outer casing has two sliding grooves. A cylinder is slidably installed in each of the two sliding grooves. A spring and a T-shaped block are fitted on the cylinder and inside the sliding groove. One end of each cylinder passes through the two sliding grooves and extends into the corresponding limit groove. The second outer casing has a protective net and a circular plate inside. A fan is rotatably installed inside the second outer casing between the protective net and the circular plate. Several circular grooves are formed on the circular plate.

[0007] A plurality of heat sinks are fitted onto the explosion-proof motor body. The plurality of heat sinks are located inside the outer casing. A plurality of heat dissipation copper pipes are fixedly installed inside the outer casing. One end of each of the plurality of heat dissipation copper pipes passes through the plurality of heat sinks, and the other end of each of the plurality of heat dissipation copper pipes passes through one side of the outer casing.

[0008] A power unit, located inside the housing, is used to drive the fan to rotate.

[0009] Preferably, the power assembly includes:

[0010] The motor is disposed inside the housing and located between the circular plate and the fan. The motor is fixed to the inner wall of the housing by a number of support columns.

[0011] Preferably, the number of the plurality of support columns is at least two, and the two ends of the support columns are respectively tightly welded to the motor and the housing.

[0012] Preferably, the protective net is tightly welded to the outer shell, and the outer shell is tightly welded to the circular plate.

[0013] Preferably, the T-shaped block is located between the spring and the outer shell, one end of the spring is tightly welded to the T-shaped block, and the T-shaped block is tightly welded to the cylinder.

[0014] Preferably, the T-shaped block is slidably connected to the groove.

[0015] Preferably, the plurality of the circular grooves are arranged in a ring at equal intervals, and the circular grooves are connected to the heat dissipation copper pipe.

[0016] Beneficial effects: The entire device, consisting of the explosion-proof motor body, outer shell one, outer shell two, limit block, cylinder, spring, T-block, protective net, circular plate, fan, heat sink, heat dissipation copper pipe, and power component, can conduct the heat emitted by the explosion-proof motor body to the heat dissipation copper pipe. The heat is then carried out of the device by the air blown out by the fan, extending the service life of the explosion-proof motor body and providing heat dissipation. At the same time, outer shell one and outer shell two can be easily disassembled, facilitating daily maintenance and greatly improving the efficiency of personnel in maintaining the explosion-proof motor body. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is one of the overall structural schematic diagrams of an explosion-proof motor dustproof sealing device according to this utility model.

[0019] Figure 2 This is the second schematic diagram of the overall structure of the explosion-proof motor dustproof sealing device of this utility model.

[0020] Figure 3 This is one of the detailed structural diagrams of the outer shell and the internal structure of the protective net of the explosion-proof motor dustproof sealing device of this utility model.

[0021] Figure 4 This is the second detailed structural diagram of the outer shell and the internal structure of the protective net of the explosion-proof motor dustproof sealing device of this utility model.

[0022] Figure 5 This is one of the exploded views of the outer shell 2 and outer shell 1 of the explosion-proof motor dustproof sealing device of this utility model.

[0023] Figure 6 This is the second exploded view of the outer shell and the outer shell area of ​​the explosion-proof motor dustproof sealing device of this utility model.

[0024] Figure 7 This utility model relates to an explosion-proof dustproof sealing device for motors. Figure 6 A schematic diagram of the enlarged structure at point A in the middle.

[0025] Figure 8 This is a cross-sectional view of the outer shell 2 and outer shell 1 of the explosion-proof motor dustproof sealing device of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Outer shell one; 2. Outer shell two; 3. Protective mesh; 4. Copper heat dissipation pipe; 5. Circular plate; 6. Circular groove; 7. Motor; 8. Fan; 9. Support column; 10. Explosion-proof motor body; 11. Limiting block; 12. L-shaped slide groove; 13. Spring; 14. Slide groove; 15. T-shaped block; 16. Limiting groove; 17. Heat sink; 18. Cylinder. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0030] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0034] This utility model provides, for example Figure 1-8The explosion-proof motor dustproof sealing device shown includes an explosion-proof motor body 10, and further includes:

[0035] Outer shell 1 is fitted onto the explosion-proof motor body 10. Outer shell 2 is provided on outer shell 1. L-shaped grooves 12 are symmetrically opened on the inner wall of outer shell 2. Limiting grooves 16 are symmetrically opened on one side of outer shell 2. Limiting blocks 11 fixed to the circumferential wall of outer shell 1 are slidably installed in both L-shaped grooves 12. Outer shell 1 is located between the two limiting blocks 11. Two grooves 14 are opened on the circumferential wall of outer shell 1. Cylinders 18 are slidably installed in both grooves 14. Springs 13 and T-shaped blocks 15 are fitted on cylinders 18 and located in the grooves 14. One end of each cylinder 18 passes through the two grooves 14 and extends into the corresponding limiting grooves 16. A protective net 3 and a circular plate 5 are provided inside outer shell 2. A fan 8 is rotatably installed inside outer shell 2 and located between the protective net 3 and the circular plate 5. Several circular grooves 6 are opened on the circular plate 5.

[0036] Several heat sinks 17 are fitted on the explosion-proof motor body 10. Several heat sinks 17 are located inside the outer shell 1. Several heat dissipation copper pipes 4 are fixedly installed inside the outer shell 1. One end of several heat dissipation copper pipes 4 passes through several heat sinks 17, and the other end of several heat dissipation copper pipes 4 passes through one side of the outer shell 1.

[0037] The power unit is located inside the housing 2 and is used to drive the fan 8 to rotate.

[0038] The device, consisting of an explosion-proof motor body 10, outer shell 1, outer shell 2, limiting block 11, cylinder 18, spring 13, T-shaped block 15, protective net 3, circular plate 5, fan 8, heat sink 17, heat dissipation copper pipe 4, and power assembly, can conduct the heat emitted by the explosion-proof motor body 10 to the heat dissipation copper pipe 4. The heat is then carried out of the device by the air blown out by the fan 8, extending the service life of the explosion-proof motor body 10 and providing heat dissipation for the explosion-proof motor body 10. At the same time, the outer shell 1 and outer shell 2 can be disassembled with simple operation, facilitating daily maintenance and greatly improving the efficiency of personnel maintenance of the explosion-proof motor body 10.

[0039] The power components include:

[0040] Motor 7 is located inside the outer casing 2 and between the circular plate 5 and the fan 8. Motor 7 is fixed to the inner wall of the outer casing 2 by several support columns 9.

[0041] When the motor 7 is connected to the power supply and started, the output shaft of the motor 7 will continuously drive the fan 8 to rotate. The rotating fan 8 will drive the air inside the outer casing 2 to be drawn towards the circular plate 5. Subsequently, a negative pressure will be generated inside the outer casing 2 and the air outside the whole device will be drawn through the protective net 3. At the same time, the air blown towards the circular plate 5 will enter the heat dissipation copper pipes 4 through the circular grooves 6 on the circular plate 5. When the air passes through the heat dissipation copper pipes 4, the channel narrows, the air flow speed increases, and the temperature decreases.

[0042] The number of support columns 9 is at least two, and the two ends of the support columns 9 are tightly welded to the motor 7 and the outer casing 2, respectively.

[0043] This ensures the structural stability of the support column 9, the motor 7, and the outer casing 2.

[0044] The protective net 3 is tightly welded to the outer shell 2, and the outer shell 2 is tightly welded to the circular plate 5.

[0045] Among these measures, it is necessary to ensure the structural stability of the protective net 3 and the outer shell 2, and to guarantee the structural stability of the outer shell 2 and the circular plate 5.

[0046] T-shaped block 15 is located between spring 13 and outer shell 2. One end of spring 13 is tightly welded to T-shaped block 15, and T-shaped block 15 is tightly welded to cylinder 18.

[0047] Among them, ensuring the structural stability of spring 13 and T-block 15, and ensuring the structural stability of T-block 15 and cylinder 18.

[0048] T-block 15 is slidably connected to slide groove 14.

[0049] This ensures that the T-block 15 can slide normally within the groove 14.

[0050] Several circular grooves 6 are arranged in a ring at equal intervals, and the circular grooves 6 are connected to the heat dissipation copper pipes 4.

[0051] This ensures that air can pass through the circular groove 6 and enter the heat dissipation copper pipe 4.

[0052] It is worth noting that the cross-section of the circular groove 6 is frustum-shaped.

[0053] Working principle: When routine maintenance is required on the explosion-proof motor body 10, pull the T-block 15 towards the spring 13. The T-block 15 will also compress the spring 13 and contract. At the same time, the T-block 15 will also drive the cylinder 18 to move, so that one end of the cylinder 18 slides out completely from the limiting groove 16. The operation of the other T-block 15 is the same as the above operation.

[0054] When one end of each of the two cylinders 18 slides completely out of the two limiting grooves 16, the outer shell 2 can be rotated until the limiting block 11 on the outer shell 1 abuts against the corner of the L-shaped sliding groove 12 and the outer shell 2 can no longer rotate. Then the outer shell 2 can be pulled out from the outer shell 1. After that, the outer shell 1 can be pulled out from the explosion-proof motor body 10, and personnel can then perform routine maintenance on the explosion-proof motor body 10.

[0055] When the explosion-proof motor body 10 needs cooling, the motor 7 is powered on and started. The output shaft of the motor 7 continuously drives the fan 8 to rotate. The rotating fan 8 blows the air inside the outer casing 2 towards the circular plate 5. Subsequently, a negative pressure is generated inside the outer casing 2, drawing in air from outside the entire device through the protective mesh 3. At the same time, the air blown towards the circular plate 5 enters the heat dissipation copper pipes 4 through several circular grooves 6 on the circular plate 5. As the air passes through the circular grooves 6, the channels within the grooves 6 narrow, increasing the airflow speed and causing the air temperature to drop. Simultaneously, some of the heat generated by the explosion-proof motor body 10 during operation is directly conducted to the heat dissipation copper pipes 4 through the air, while the remaining heat... Heat is also conducted to several heat dissipation copper pipes 4 through several heat sinks 17. Subsequently, when air passes through several heat dissipation copper pipes 4, it will carry away the heat on several heat dissipation copper pipes 4. A large amount of heat will be blown out of the whole device along with the air. The whole device can conduct the heat emitted by the explosion-proof motor body 10 to the heat dissipation copper pipes 4, and the air blown out by the fan 8 will carry the heat on the heat dissipation copper pipes 4 out of the whole device, extending the service life of the explosion-proof motor body 10 and playing a heat dissipation role for the explosion-proof motor body 10. At the same time, the outer shell 1 and the outer shell 2 can be disassembled by simple operation, which facilitates the daily maintenance work of personnel and greatly improves the work efficiency of personnel maintaining the explosion-proof motor body 10.

[0056] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A dustproof sealing device for an explosion-proof motor, comprising an explosion-proof motor body (10), characterized in that, Also includes: Outer shell 1 (1) is fitted onto the explosion-proof motor body (10). Outer shell 2 (2) is provided on outer shell 1 (1). L-shaped grooves (12) are symmetrically opened on the inner wall of outer shell 2 (2), and limit grooves (16) are symmetrically opened on one side of outer shell 2 (2). Limiting blocks (11) fixed to the circumferential wall of outer shell 1 (1) are slidably installed in both L-shaped grooves (12). Outer shell 1 (1) is located between the two limit blocks (11). Two grooves (14) are opened on the circumferential wall of outer shell 1 (1). A cylinder (18) is slidably installed in each of the two slide grooves (14). A spring (13) and a T-shaped block (15) are sleeved on the cylinder (18) and located in the slide groove (14). One end of each cylinder (18) passes through the two slide grooves (14) and extends into the corresponding limiting groove (16). A protective net (3) and a circular plate (5) are provided inside the outer shell (2). A fan (8) is rotatably installed inside the outer shell (2) and located between the protective net (3) and the circular plate (5). Several circular grooves (6) are opened on the circular plate (5). A plurality of heat sinks (17) are fitted on the explosion-proof motor body (10). The plurality of heat sinks (17) are located inside the outer shell (1). A plurality of heat dissipation copper pipes (4) are fixedly installed inside the outer shell (1). One end of the plurality of heat dissipation copper pipes (4) passes through the plurality of heat sinks (17), and the other end of the plurality of heat dissipation copper pipes (4) passes through one side of the outer shell (1). A power assembly located inside the housing (2) and used to drive the fan (8) to rotate.

2. The explosion-proof motor dustproof sealing device according to claim 1, characterized in that, The power assembly includes: The motor (7) is located inside the outer casing (2) and between the circular plate (5) and the fan (8). The motor (7) is fixed to the inner wall of the outer casing (2) by several support columns (9).

3. The explosion-proof motor dustproof sealing device according to claim 2, characterized in that, The number of the aforementioned support columns (9) is at least two, and the two ends of the support columns (9) are respectively tightly welded to the motor (7) and the outer casing (2).

4. The explosion-proof motor dustproof sealing device according to claim 1, characterized in that, The protective net (3) is tightly welded to the outer shell (2), and the outer shell (2) is tightly welded to the circular plate (5).

5. The explosion-proof motor dustproof sealing device according to claim 1, characterized in that, The T-shaped block (15) is located between the spring (13) and the outer shell (2). One end of the spring (13) is tightly welded to the T-shaped block (15), and the T-shaped block (15) is tightly welded to the cylinder (18).

6. The explosion-proof motor dustproof sealing device according to claim 1, characterized in that, The T-shaped block (15) is slidably connected to the groove (14).

7. The explosion-proof motor dustproof sealing device according to claim 1, characterized in that, Several of the circular grooves (6) are arranged in a ring with equal spacing, and the circular grooves (6) are connected to the heat dissipation copper pipe (4).

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