A sliding bearing motor structure

By designing an oil injection/drainage assembly and an oil sighting assembly in a sliding bearing motor, the problem of the inability to observe the oil level in sliding bearings is solved, enabling convenient adjustment of the oil level, ensuring normal operation of the motor and improving bearing life.

CN224520834UActive Publication Date: 2026-07-17NANYANG EXPLOSION-PROOF (SUZHOU) SPECIAL EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANYANG EXPLOSION-PROOF (SUZHOU) SPECIAL EQUIP CO LTD
Filing Date
2025-07-14
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The inability to observe the oil level in the sliding bearing located at the other end of the motor body can lead to an increase in bearing temperature when there is too much or too little oil, affecting the normal operation of the motor and posing a risk of oil leakage or damage to the bearing bush.

Method used

The design includes an oil filling and draining assembly and an oil level sight glass, comprising an oil drain pipe, an oil filling pipe, an oil level sight glass, and an air filter. These components allow for observation and adjustment of the oil level in the sliding bearing without removing the end cover, ensuring the correct amount of lubricating oil.

Benefits of technology

It enables convenient observation and adjustment of the oil level in the sliding bearing, ensuring normal motor operation, extending bearing life, reducing the risk of oil leakage, and improving work efficiency and heat dissipation performance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224520834U_ABST
    Figure CN224520834U_ABST
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Abstract

The utility model discloses a sliding bearing motor structure, including motor main part, install the first sliding bearing of motor main part axial one end, install the second sliding bearing of motor main part axial other end and cover the end cover of first sliding bearing outer periphery, still include: injection oil assembly, its one end is connected to the oil leak hole of the bearing seat bottom of first sliding bearing, and another end extends to the outside of end cover, is used for the oil injection or oil discharge of first sliding bearing, including the oil discharge pipe of intercommunication oil leak hole, be used for opening or closing the pipe plug of oil discharge pipe, one end intercommunication to the oil injection pipe of oil discharge pipe and set up the air filter part of oil injection pipe another end, view oil assembly, its connection to the bearing seat of first sliding bearing is used for observing the oil level in first sliding bearing. The utility model provides a sliding bearing motor structure, and the oil level of sliding bearing in end cover is conveniently observed, guarantees the normal work of motor.
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Claims

1. A sliding bearing motor structure, comprising a motor body, a first sliding bearing mounted on one axial end of the motor body, a second sliding bearing mounted on the other axial end of the motor body, and an end cover disposed around the outer periphery of the first sliding bearing, characterized in that, Also includes: The oil injection and drainage assembly has one end connected to the oil drain hole at the bottom of the bearing seat of the first sliding bearing, and the other end extends to the outside of the end cover. It is used to inject or drain oil into the first sliding bearing. It includes an oil drain pipe connected to the oil drain hole, a plug for opening or closing the oil drain pipe, an oil injection pipe connected to the oil drain pipe at one end, and an air filter component detachably disposed at the other end of the oil injection pipe. An oil level sight glass assembly, connected to the bearing housing of the first sliding bearing, is used to observe the oil level inside the first sliding bearing. It includes a connecting oil pipe with one end connected to the bearing housing of the first sliding bearing and an oil level sight glass installed at the other end of the connecting oil pipe.

2. The slide bearing motor structure according to claim 1, characterized in that: The oil injection and drainage assembly also includes a connecting pipe connected to the oil drain hole and an elbow connecting one end of the oil drain pipe to the connecting pipe.

3. The slide bearing motor structure according to claim 2, characterized in that: The connecting pipe extends vertically.

4. The slide bearing motor structure according to claim 3, characterized in that: The connecting pipe is threadedly connected to the bearing housing and the elbow, respectively.

5. The plain bearing electric motor arrangement according to claim 1, characterized in that The drain pipe extends horizontally to the outside of the end cover, and the injection pipe extends vertically and is arranged outside the end cover.

6. The plain bearing electric motor arrangement according to claim 1, characterized in that: The connecting oil pipe extends horizontally to the outside of the end cap.

7. The plain bearing electric motor arrangement according to claim 6, characterized in that A locking nut is fixed on the bearing housing, and the connecting oil pipe is threadedly connected to the locking nut.

8. The plain bearing electric motor arrangement according to claim 1, characterized in that The end cover includes a circumferential seat and an air inlet plate fixed to one axial end of the circumferential seat. The circumferential seat is provided with U-shaped clearance grooves for the oil inlet pipe, oil return pipe, oil drain pipe assembly and oil sighting assembly of the first sliding bearing to pass through.

9. The plain bearing electric motor arrangement according to claim 8, characterized in that The end cover is detachably provided with a cover plate at the opening end of the U-shaped clearance groove.

10. The plain bearing electric motor arrangement according to claim 1, characterized in that: The air filtration component is a type C air filter.