A multi-functional motor exhaust cover

Abstract

This utility model belongs to the field of equipment protection technology, specifically a multifunctional motor exhaust hood. It includes a guide hood, a baffle, and a grid plate. The guide hood is welded to the grid plate, and the baffle is movably installed inside the guide hood, capable of opening or closing the grid strip area on the grid plate. The corners of the guide hood have symmetrically arranged positioning screw holes; limit rods are installed in the two positioning screw holes, and the limit rods are located in the U-shaped limit grooves of the baffle, allowing the baffle to rotate around the limit rods. This utility model has a reasonable design, not only solving the problem of dust entering the motor through the gaps between the grids and contaminating the winding insulation in the working environment of conventional exhaust hoods, but also possessing excellent protective sealing function, facilitating application and promotion, and having good practical application value.

Description

Technical Field

[0001] This utility model belongs to the field of equipment protection technology, specifically a multi-functional motor exhaust cover. Background Technology

[0002] In large open-pit coal mines, electric shovels are key equipment for coal mining. The reliability of the electric shovel directly affects mine production, and the motor is its core component. A large electric shovel has four types of motors: lifting, pushing, slewing, and traveling, all using forced ventilation. Forced ventilation involves installing a fan at the motor's air inlet; the forced airflow from the fan removes heat from the motor, enhancing its heat dissipation capacity. The exhaust hood, located at the motor's hot air outlet, is a crucial part of the motor's airflow path.

[0003] Conventional exhaust hood designs use a grille pattern to ensure smooth airflow for cooling. However, when the motor stops operating, the gaps between the exhaust hood grilles are unobstructed, allowing external dust to easily enter the motor and contaminate the winding insulation, thus reducing its performance. The existing technology, namely the conventional exhaust hood (before improvement), has the disadvantage that when the motor stops, the lack of cooling air inside allows dust from the working environment to easily enter the motor through the gaps in the exhaust hood grilles, adhering to the surface of the winding insulation or entering the tiny gaps within the winding insulation. Dust is typically conductive, which reduces the winding insulation performance, increases the risk of insulation breakdown, and poses a potential quality hazard. Utility Model Content

[0004] The purpose of this invention is to design a multifunctional air outlet hood to solve the problem of dust entering the motor through the gaps between the grilles and contaminating the winding insulation in conventional air outlet hoods, while ensuring that cooling air can flow out smoothly when the motor is running. It also has a protective sealing function, preventing airborne dust from entering the motor and contaminating the winding insulation when the motor is not running.

[0005] This utility model is achieved using the following technical solution: A multifunctional motor exhaust cover includes a guide cover, a baffle, a grille, etc.

[0006] The flow guide is welded to the grating plate, and the baffle is movably installed inside the flow guide and can open or close the grating bar area on the grating plate.

[0007] More preferably, the grille has through holes at its four corners, and is fixed to the air outlet of the base by bolts passing through the through holes.

[0008] More preferably, the mounting end of the baffle is bent to form a U-shaped limiting groove; the corner of the guide shroud is symmetrically provided with positioning screw holes; a limiting rod is assembled in the two positioning screw holes, and the limiting rod is located in the U-shaped limiting groove of the baffle to realize the rotation of the baffle around the limiting rod.

[0009] More preferably, the positioning hole is a screw hole, and the limiting rod is a limiting screw; the two limiting screws are screwed into the screw holes located on both sides respectively.

[0010] More preferably, the limiting rod has threads at both ends, and the limiting rod is screwed into the positioning screw holes on both sides.

[0011] More preferably, the baffle is made of 2mm thick aluminum plate.

[0012] During assembly, first weld the air deflector onto the grating plate, then place the baffle inside the air deflector, align the U-shaped groove of the baffle with the positioning screw holes on both sides of the air deflector, and then screw two fixing bolts into the positioning screw holes drilled on both sides of the air deflector. At this time, the fixing bolts connect the air deflector and the U-shaped groove of the baffle together, so that the baffle can rotate around the fixing bolts.

[0013] Finally, the grille is installed on the base using hexagonal bolts. At this point, the installation of a multi-functional motor exhaust cover is complete.

[0014] This utility model is reasonably designed and not only solves the problem of dust entering the motor through the gaps between the grids and contaminating the winding insulation in the working environment of conventional air hoods, but also has a good protective sealing function, which is convenient for application and promotion and has good practical application value. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the overall structure of the multi-functional air outlet cover.

[0016] Figure 2 This is a side view showing the overall structure of the multi-functional air vent.

[0017] Figure 3 This is a top view showing the overall structure of the multi-functional air vent.

[0018] Figure 4 This diagram illustrates the working principle of a multi-functional air vent.

[0019] In the diagram, 1-diffuser, 2-baffle, 3-grid plate, 101-through hole, 102-positioning screw hole, 103-limiting rod, 201-U-shaped groove. Detailed Implementation

[0020] To enable those skilled in the art to better understand this utility model, the following description, in conjunction with the accompanying drawings, will provide a clearer and more complete account of the utility model.

[0021] This utility model provides a multifunctional motor exhaust shroud, including a guide shroud 1, a baffle 2, and a grille 3; as shown Figure 1As shown, the flow guide 1 is welded to the grid plate 3, and the baffle 2 is movably installed inside the flow guide 1, and can open or close the grid bar area on the grid plate 3.

[0022] like Figure 3 As shown, the four corners of the grille plate 3 have through holes 101, which are fixed to the air outlet of the base by bolts passing through the through holes.

[0023] like Figure 2 As shown, the mounting end of the baffle 2 is bent to form a U-shaped limiting groove 201, as... Figure 2 , 3 As shown, the corners of the flow guide 1 are symmetrically provided with positioning screw holes 102; the two positioning screw holes 102 are equipped with limiting rods 103, and the limiting rods 103 are located in the U-shaped limiting grooves 201 of the baffle 2 to realize the rotation of the baffle 2 around the limiting rods 103.

[0024] like Figure 2 As shown, the limiting rod 103 is a limiting screw; the two limiting screws are screwed into the screw holes located on both sides respectively.

[0025] like Figure 2 As shown, the limiting rod 103 has threads at both ends, and the limiting rod 103 is screwed into the positioning screw holes 102 on both sides. The baffle 2 is made of 2mm thick aluminum plate.

[0026] During assembly, first weld the flow guide 1 onto the grid plate 3, then place the baffle 2 inside the flow guide 1, align the U-shaped groove 201 of the baffle 2 with the positioning screw holes 102 on both sides of the flow guide 1, and then screw two fixing bolts into the positioning screw holes 102 drilled on both sides of the flow guide 1. At this time, the fixing bolts connect the flow guide 1 and the U-shaped groove 201 of the baffle 2 together, so that the baffle can rotate around the fixing bolts.

[0027] Finally, the grille plate 3 is installed on the base with hex bolts. At this point, the installation of a multi-functional motor exhaust cover is complete.

[0028] When the motor is started, baffle 2 is suspended in the air by the force of the cold air, allowing cooling air to flow out from the grille plate 3. When the motor stops working, baffle 2 covers the surface of the grille plate 3 under its own weight, preventing dust from the external environment from entering the motor and contaminating the winding insulation.

[0029] This utility model is reasonably designed and not only solves the problem of dust entering the motor through the gaps between the grids and contaminating the winding insulation in the working environment of conventional air hoods, but also has a good protective sealing function, which is convenient for application and promotion and has good practical application value.

[0030] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Although detailed descriptions have been provided 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 or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and all should be covered by the protection scope of the claims.

Claims

1. A multifunctional motor exhaust shroud, characterized in that: Includes fairing (1), baffle (2), and grille (3); The flow guide (1) is welded to the grid plate (3), and the baffle (2) is movably installed inside the flow guide (1) and can open or close the grid bar area on the grid plate (3).

2. The multifunctional motor exhaust shroud according to claim 1, characterized in that: The grille (3) has through holes (101) at its four corners, and is fixed to the air outlet of the base by bolts passing through the through holes.

3. A multifunctional motor exhaust shroud according to claim 2, characterized in that: The mounting end of the baffle (2) is bent to form a U-shaped limiting groove (201); the corner of the guide shield (1) is symmetrically provided with positioning screw holes (102); the two positioning screw holes (102) are fitted with limiting rods (103), and the limiting rods (103) are located in the U-shaped limiting grooves (201) of the baffle (2) to realize the rotation of the baffle (2) around the limiting rods (103).

4. A multifunctional motor exhaust shroud according to claim 3, characterized in that: The limiting rod (103) is a limiting screw; the two limiting screws are screwed into the screw holes located on both sides respectively.

5. A multifunctional motor exhaust shroud according to claim 3, characterized in that: The limiting rod (103) has threads at both ends, and the limiting rod (103) is screwed into the positioning screw holes (102) on both sides.

6. A multifunctional motor exhaust shroud according to any one of claims 1-5, characterized in that: The baffle (2) is made of 2mm thick aluminum plate.

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