Oil discharge device of motor bearing chamber
By designing a combination structure of a hollow cylindrical oil drain port and a sealing cap, the problems of poor oil drainage and oil leakage in the bearing chamber of large motors were solved, ensuring the normal operation and safety of the motor bearings.
Patent Information
- Application Number
- CN202520952913.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-05-15
AI Technical Summary
The oil draining device in the bearing chamber of large motors has problems with poor oil drainage and sludge, which causes the motor bearing temperature to rise, affecting normal oiling and potentially causing safety hazards.
An oil draining device for motor bearing housing was designed, including a hollow cylindrical oil drain port, a sealing gland, and an adjusting sleeve. The sealing gland moves up and down by adjusting the rotation of the adjusting sleeve, ensuring smooth oil draining and achieving sealing after oil draining.
This ensures smooth discharge of motor oil, preventing poor drainage and oil leakage, and guaranteeing the safe and stable operation of the motor bearings.
Smart Images
Figure CN223807016U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a boiler coal mill technical field, concretely is a motor bearing chamber oil discharge device. BACKGROUND
[0002] The large -scale motor bearing chamber structure generally has the oiling and the oil discharge part, and the motor bearing can be oiled and the oil is discharged in the operation, to ensure that the motor bearing can long -term safe and stable operation, but, part large -scale motor bearing chamber's oil discharge device is a structure of one oil discharge small hole, there is the shortcoming that the oil is not smooth, simultaneously when discharging, the oil mud situation appears and can lead to difficult to discharge, can cause the motor bearing temperature to rise too fast, make normal oiling is affected, and temperature control is not good, also can cause the motor trip accident to take place, bury the security hidden danger for normal oiling. SUMMARY
[0003] The utility model discloses a motor bearing chamber oil discharge device to solve the problem in the background art.
[0004] To achieve the above object, the utility model provides the following technical scheme:
[0005] A motor bearing chamber oil discharge device, which comprises a motor, an oil discharge port provided on the motor, a threaded adjusting sleeve connected to the oil discharge port, a sealing gland covering the bottom of the oil discharge port, a trapezoidal opening provided in the branch cylinder of the adjusting sleeve, and a limiting block provided on the sealing gland and contacting the trapezoidal opening of the adjusting sleeve.
[0006] The motor bearing chamber oil discharge device, wherein the oil discharge port is a hollow cylindrical port, and a plurality of branch ears are fixed to the side surface of the oil discharge port.
[0007] The motor bearing chamber oil discharge device, wherein the adjusting sleeve comprises a threaded sleeve, a branch cylinder fixed to the bottom of the threaded sleeve, and four evenly distributed trapezoidal openings provided in the side surface of the branch cylinder.
[0008] The motor bearing chamber oil discharge device, wherein the sealing gland comprises a circular truncated cone cover plate, a plurality of fixed rods fixed to the circular truncated cone cover plate, and a limiting block fixed to each fixed rod.
[0009] The motor bearing chamber oil discharge device, wherein the branch cylinder comprises an inner branch cylinder and an outer branch cylinder, and the inner branch cylinder is concentrically arranged with the outer branch cylinder. Advantages
[0010] 1. The utility model discloses a hollow cylindrical port is arranged to the oil discharge port, which can facilitate the discharge of motor oil, prevent the problem of poor oil discharge, and intuitively master the oiling and oil discharge of the bearing chamber, and can also observe the color change of the discharged oil.
[0011] 2. The utility model discloses a sealing gland, which is pressed on the bottom of the oil discharge port and sealed with the inclined surface at the bottom of the oil inlet port, so as to ensure the sealing effect and prevent oil leakage when the bearing is high temperature. DRAWINGS
[0012] Figure 1 It is a perspective view of the utility model;
[0013] Figure 2 It is an enlarged view of A part of Figure 1
[0014] Figure 3 It is a side view of the utility model;
[0015] Figure 4 It is a B-B sectional view of Figure 3
[0016] Figure 5 It is an enlarged view of C part of Figure 4
[0017] Figure 6 It is a structural schematic view of the adjusting sleeve;
[0018] Figure 7 It is a structural schematic view of the sealing gland;
[0019] Figure 8 It is a structural schematic view of the sealing gland when it falls to discharge oil;
[0020] In the drawing: 1, motor; 2, oil discharger; 2.1, oil discharge port; 2.2, adjusting sleeve; 2.3, sealing gland; 2.1.1, external thread; 2.1.2, inclined sealing surface; 2.1.3, lug; 2.1.4, sealing ring; 2.2.1, threaded sleeve; 2.2.2, inner supporting cylinder; 2.2.3, outer supporting cylinder; 2.2.4, trapezoidal opening; 2.3.1, limiting block; 2.3.2, fixed rod; 2.3.3, round table cover plate. DETAILED DESCRIPTION
[0021] Please refer to Figures 1-7 The utility model provides a technical scheme: a motor bearing chamber oil discharge device, its component includes: motor 1, motor bearing chamber has oil discharger 2, and the oil discharger includes oil discharge port 2.1, the oil discharge port is provided with adjusting sleeve 2.2 on the screw thread, the bottom of oil discharge port is covered with sealing gland 2.3, the branch cylinder of adjusting sleeve is provided with trapezoidal opening 2.2.4, and the limiting block 2.3.1 on sealing gland contacts the trapezoidal opening of adjusting sleeve.
[0022] The bottom surface of the trapezoidal opening of the adjusting sleeve contacts the bottom surface of the limiting block, by rotating the adjusting sleeve, different parts of the trapezoidal opening of the adjusting sleeve contact the limiting block, thereby driving the sealing gland to move up and down, the sealing gland moves upward to be pressed on the bottom of the oil discharge port to realize sealing, and the sealing gland moves downward to be separated from the bottom of the oil discharge port to discharge oil.
[0023] The oil discharge port is a hollow cylindrical port, and a plurality of supporting lugs 2.1.3 are fixed on the side surface of the oil discharge port.
[0024] The adjusting sleeve includes a threaded sleeve 2.2.1, the bottom of the threaded sleeve is fixed with a branch cylinder, and four evenly distributed trapezoidal openings are formed in the side surface of the branch cylinder.
[0025] The oil discharge port is a hollow cylindrical port, and the outer surface of the oil discharge port is provided with external threads 2.1.1, which are matched with the threaded sleeve of the adjusting sleeve.
[0026] The branch cylinder includes an inner branch cylinder 2.2.2 and an outer branch cylinder 2.2.3, and the inner branch cylinder and the outer branch cylinder are arranged concentrically.
[0027] The inner branch cylinder and the outer branch cylinder are provided with a plurality of trapezoidal openings, the lower end surface of the trapezoidal opening of the inner branch cylinder contacts the front lower end surface of the limiting block, and the lower end surface of the trapezoidal opening of the outer branch cylinder contacts the rear lower end surface of the limiting block, so that by rotating the adjusting sleeve, the up and down movement of the sealing gland can be realized by changing the contact position of the limiting block.
[0028] The sealing gland includes a circular table cover plate 2.3.3, a plurality of fixed rods 2.3.2 are fixed on the circular table cover plate, the fixed rods pass through the round holes of the supporting lugs, the limiting blocks are fixed on each fixed rod, the middle part of the sealing gland is a circular table structure, the inner surface of the bottom of the oil discharge port is also an inclined sealing surface 2.1.2, the circular table surface cooperates with the inclined surface of the oil discharge port, and the bottom of the oil discharge port is also fixed with a sealing ring 2.1.4.
[0029] Working principle: When oil drainage is required, hold the threaded sleeve of the adjusting sleeve and rotate it. This causes the bottom of the trapezoidal opening to face downwards, changing its contact position with the limit block, as shown in the figure. When rotated clockwise, the height of the adjusting sleeve decreases. Simultaneously, the contact position of the trapezoidal opening of the adjusting sleeve with the limit block changes, and the sealing cap gradually falls under its own weight, separating it from the oil drain port for easy oil drainage. Figure 8 As shown, when sealing is required after draining the oil, the adjusting sleeve is rotated in the opposite direction. During the rotation of the adjusting sleeve, its height gradually increases, and at the same time, the position of the trapezoidal opening in contact with the limit block changes. The bottom surface of the trapezoidal opening will push the limit block, causing the height of the sealing cap to gradually rise until the sealing cap covers the drain port. The sealing can be achieved through the sealing ring and the inclined sealing surface. At the same time, the adjusting sleeve and the drain port are threaded, which can ensure the stability of the position after adjustment.
Claims
1. An electric machine bearing chamber oil drain device comprising: The utility model relates to a motor, the motor has oil discharge port, it is characterized by: the threaded connection has adjusting sleeve on the oil discharge port, the bottom of oil discharge port is covered with sealing gland, the trapezoidal opening is set up in the branch cylinder of adjusting sleeve, the limiting block on sealing gland contacts the trapezoidal opening of adjusting sleeve.
2. An oil drain device for a motor bearing chamber according to claim 1, characterized in that: The oil discharge port is a hollow cylindrical port, and a plurality of supporting lugs are fixed to the side surface of the oil discharge port.
3. An oil drain device for a motor bearing chamber according to claim 2, characterized in that: The adjusting sleeve comprises a threaded sleeve, the bottom of the threaded sleeve is fixed with a branch cylinder, and four evenly distributed trapezoidal openings are formed in the side surface of the branch cylinder.
4. An oil drain device for a motor bearing chamber according to claim 3, characterized in that: The sealing gland comprises a circular truncated cone cover plate, a plurality of fixed rods are fixed to the circular truncated cone cover plate, the fixed rods pass through the round holes of the supporting lugs, and a limiting block is fixed to each fixed rod.
5. An oil drain device for a motor bearing chamber according to claim 4, characterized in that: The branch cylinder comprises an inner branch cylinder and an outer branch cylinder, and the inner branch cylinder is concentrically arranged with the outer branch cylinder.