A matched low-speed large-capacity synchronous mill motor slip ring protective cover

Abstract

The application discloses a matched low-speed large-capacity synchronous grinder motor slip ring protection cover, which comprises an end cover and a protection cover, wherein the protection cover comprises a bottom surface round plate, a bottom surface ring plate, an arc plate and a connecting plate strip; the bottom surface ring plate is connected around the outer circumference of the bottom surface round plate; the arc plate is connected with the bottom surface round plate and the bottom surface ring plate through the connecting plate strip and is welded to form a circular sleeve structure; an observation window hole and a heat dissipation hole are formed in the arc plate; an observation window is detachably installed on the observation window hole; and a ventilation type buckle cover plate is detachably installed on the heat dissipation hole; a clamping groove matched with the opening of the protection cover is formed on the end cover, and the protection cover is clamped in the clamping groove.

Description

Technical Field

[0001] The invention relates to a matching low-speed and large-capacity synchronous mill motor slip ring protective cover used in the motor manufacturing field. Background Art

[0002] See also Figure 1 The traditional synchronous mill motor slip ring protective device (2) is a separate box-shaped structure mounted on the motor chassis. This has a large overall size and is spaced a certain distance from the rear end cover (1). Its structure is relatively loose, and the axial clearance is large, making it susceptible to uncontrolled impact due to mechanical vibration during motor operation. Furthermore, the lead wires must be fixed to the slip ring through a long sleeve in the middle, increasing the structural complexity and reducing assembly efficiency and system reliability. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a matching low-speed and large-capacity synchronous mill motor slip ring protective cover for the safety protection of the low-speed and large-capacity synchronous mill motor slip ring.

[0004] A technical solution to achieve the above object is: a slip ring protective cover for a low-speed, large-capacity synchronous mill motor, comprising an end cover and a protective cover;

[0005] The protective cover includes a bottom circular plate, a bottom ring plate, an arc plate and a connecting strip. The bottom ring plate is connected to the outer circumference of the bottom circular plate. The arc plate is connected to the bottom circular plate and the bottom ring plate through the connecting strip and welded to form a circular sleeve structure. An observation window hole and a heat dissipation hole are opened on the arc plate. An observation window is detachably installed on the observation window hole, and a ventilation buckle cover is detachably installed on the heat dissipation hole.

[0006] The end cover is provided with a card slot which matches the opening of the protective cover, and the protective cover is card-connected in the card slot.

[0007] Furthermore, the bottom circular plate, the bottom annular plate and the arc-shaped plate respectively include two bottom semi-circular plates, two bottom semi-annular plates and two semi-arc-shaped plates, and the cylindrical structure is composed of two welded half-sleeves, which are fixed by bolts to form a complete circular sleeve.

[0008] Furthermore, a windshield is installed at the shaft exit of the protective cover.

[0009] Furthermore, the connection between the end cover and the protective cover is reinforced and fixed by a connector and sealed by epoxy resin.

[0010] The present invention provides a matching low-speed, large-capacity synchronous mill motor slip ring protective cover, which eliminates the structure of the traditional synchronous motor slip ring protective cover, designs the protective cover into a half-cylinder structure, and directly installs the protective cover on the rear end cover, shortening the shaft system size of the motor and making the structure more compact. The mounting base plate and the long sleeve for fixing the wire of the original structure protective cover are also eliminated from the chassis, thereby reducing the weight of the motor as a whole, reducing the complexity of the structure, and improving the assembly efficiency and reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the installation of a protective device for the motor slip ring of a traditional synchronous mill;

[0012] Figure 2 This is a schematic diagram of the installation of a slip ring protective cover for a low-speed, large-capacity synchronous mill motor according to the present invention;

[0013] Figure 3 This is a bottom view of a slip ring protective cover for a low-speed, large-capacity synchronous mill motor according to the present invention;

[0014] Figure 4 This is a schematic diagram of the arc-shaped plate structure of a slip ring protective cover for a low-speed, large-capacity synchronous mill motor according to the present invention;

[0015] Figure 5 This is a schematic diagram of the assembly of a slip ring protective cover for a low-speed, large-capacity synchronous mill motor according to the present invention;

[0016] Figure 6 for Figure 5 Cross-sectional view in the AA direction. DETAILED DESCRIPTION

[0017] In order to better understand the technical solution of the present invention, the following is a detailed description through specific embodiments:

[0018] See also Figures 2 to 4 The present invention provides a matching low-speed, large-capacity synchronous mill motor slip ring protective cover, comprising an end cover 1 and a protective cover 3. The protective cover 3 comprises a bottom circular plate 31, a bottom ring plate 32, an arc plate 33 and a connecting strip 34. The bottom circular plate 31, the bottom ring plate 32 and the arc plate 33 respectively comprise two bottom semicircular plates, two bottom semi-ring plates and two semi-arc plates. A bottom semicircular plate is wound around the outer circumference of the bottom semicircular plate. The semi-arc plate is bent from a thin steel plate and is connected to the bottom semicircular plate and the bottom semi-ring plate through the connecting strip 34, and welded to form a half-sleeve. The two half sleeves are combined to form a complete circular sleeve, which is fixed by bolts 35, washers and nuts, and the cover is connected to the end cover 1.

[0019] The bottom circular plate 31 is machined with a set of mounting holes for connecting to the end cap 1. The end cap 1 is provided with a slot that matches the opening of the protective cover 3, and the protective cover is snapped into the slot. The connection between the end cap and the protective cover is reinforced with connectors and sealed with epoxy resin.

[0020] Observation windows are provided above and below the curved plate 33, with removable snap-on inspection window covers 36 mounted on the windows for easy inspection and replacement of the carbon brushes. A heat dissipation hole is provided below the curved plate 33, with removable snap-on ventilation covers 37 mounted on the heat dissipation holes for ventilation and heat dissipation, making it easy to disassemble and repair.

[0021] A windshield 38 is installed at the shaft outlet of the protective cover 3 to meet the requirements of the protection level.

[0022] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A slip ring protective cover for a low-speed, high-capacity synchronous mill motor, comprising an end cover and a protective cover, characterized in that: The protective cover includes a bottom circular plate, a bottom ring plate, an arc plate and a connecting strip. The bottom ring plate is connected to the outer circumference of the bottom circular plate. The arc plate is connected to the bottom circular plate and the bottom ring plate through the connecting strip and welded to form a circular sleeve structure. An observation window hole and a heat dissipation hole are opened on the arc plate. An observation window is detachably installed on the observation window hole, and a ventilation buckle cover is detachably installed on the heat dissipation hole. The end cover is provided with a slot that matches the opening of the protective cover, and the protective cover is snapped into the slot. The bottom circular plate, the bottom annular plate and the arc-shaped plate respectively include two bottom semicircular plates, two bottom semi-annular plates and two semi-arc-shaped plates. The cylindrical structure is composed of two welded half-sleeves and fixed by bolts to form a complete circular sleeve. A windshield is installed at the shaft exit of the protective cover. The connection between the end cover and the protective cover is reinforced and fixed by a connecting piece and sealed by epoxy resin.

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