Oil retaining disk for lubrication of motor bearing

Abstract

The invention relates to an oil retaining disk for the lubrication of a motor bearing. The oil retaining disk comprises a steel ring and a glass fiber reinforced plastic oil retaining disk. A plurality of grooves are reserved on the outer circle of the steel ring. The outer circle of the steel ring is closely integrated with the inner circle of the glass fiber reinforced plastic oil retaining disk by the grooves. The oil retaining disk for a motor consists of the steel ring and the glass fiber reinforced plastic oil retaining disk. Glass fiber reinforced plastics is a material with strong strength, light weight, corrosion resistance and high temperature resistance, and is easy to form in a die casting way. Therefore, compared with the oil retaining disk manufactured by a thick steel plate, the oil retaining disk made from the glass fiber reinforced plastics has 50 percent lower cost and attractive appearance, and is easy to identify; and simultaneously, the oil retaining disk overcomes the shortcomings of corrosion, deformation and noises of the oil retaining disk manufactured by cold drawing a steel sheet in a long-term using process.

Description

technical field [0001] The invention relates to an oil retaining plate structure for lubricating motor bearings, belonging to the technical field of motor manufacturing. Background technique [0002] The bearing lubrication conditions of three-phase asynchronous motors above frame size 315 often determine the service life of the motor bearings. Since the motor bearings above frame size 315 have larger shapes and higher prices, lubrication is particularly important. Such as figure 1 The motor bearing shown includes a bearing inner cover 1 , a motor bearing 2 , a motor end cover 3 , a bearing outer cover 5 and a motor shaft 6 . In order to make the bearing fully lubricated, an oil retaining pan 4 is often installed at one end of the motor bearing 2 . When the motor bearing 2 rotates at high speed, if there is no oil retainer 4, most of the lubricating grease in the inner cavity of the bearing will be thrown on the bearing outer cover 5 due to the centrifugal force. The dis...

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Problems solved by technology

[0005] The advantages of the present invention are: the motor oil retaining plate of the present invention is composed of a steel ring and a glass fiber reinforced plastic oil retaining plate, and the glass fiber reinforced plastic is a material with high strength, light weight, corrosion resistance and high temperature resistance, and is easy to die-cast, and is made of this material The price of the oil baffle plate is 50% lower than that of the oil baffle plate made of thick steel plate, and it has a beautiful appearance and is easy to identify (the end face of the FRP oil baffle plate is die-cast with different models and specifications); at the same time, it overcomes the need to use thin The oil deflector made of cold-drawn steel plate has the disadvantages of corrosion, deformation and noise during long-term use

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