Submersible mixer motor bearing

Abstract

The utility model discloses a submersible mixer motor bearing, which relates to the motor bearing field, and comprises an outer ring and an inner ring, the inner ring is sleeved in the outer ring, the clearance between the outer ring and the inner ring is matched to form a ball cavity, a plurality of balls are arranged in the ball cavity, and the two ends of the inner ring along the axis direction are rotatably connected with annular plates. The inner sides and the outer sides of the annular sealing plates abut against the annular plates and the outer ring correspondingly, the two ends of the ball cavities are sealed through the sealing structures, and at the moment, the multiple balls stably rotate through the insertion structures between the two annular sealing plates; meanwhile, the inner ring rotates between the two annular plates, stable rotation of the motor output shaft is achieved, friction between the annular sealing plates and the inner ring and the outer ring is avoided in the process that the inner ring rotates along with the motor shaft, liquid is prevented from permeating into the bearing, the waterproof effect of the bearing is improved, and the service life of the bearing is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of motor bearings, in particular to a submersible mixer motor bearing. Background Art

[0002] Submersible agitators, also known as submersible propellers, are suitable for promoting and stirring sewage containing suspended matter, sludge, industrial process liquids, etc. in the process flow of sewage treatment plants, creating water flow, enhancing the stirring function, and preventing sludge sedimentation. They are important equipment in the process flow of municipal and industrial sewage treatment. The agitator mainly relies on the motor to drive the propeller to rotate.

[0003] At present, the motor bearing structure in the agitator is simple, and often relies on a simple annular plate to seal the gap between the inner and outer rings of the bearing. During the continuous rotation of the inner ring of the bearing, it will continue to rub against the annular plate. During the long-term treatment of sewage and mud, impurities in the water will penetrate into the motor bearing, causing bearing wear and even motor damage, and the practicality is poor. Utility Model Content

[0004] The purpose of the present utility model is to provide a submersible mixer motor bearing in order to solve the above-mentioned problem, as described below.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a submersible mixer motor bearing, comprising an outer ring and an inner ring, wherein the inner ring is sleeved inside the outer ring, the clearance between the outer ring and the inner ring is matched to form a ball cavity, a plurality of balls are arranged in the ball cavity, both ends of the inner ring along the axial direction are rotatably connected with annular plates, both ends of the outer ring and the inner ring along the axial direction are provided with annular sealing plates, and the size of the annular sealing plates is adapted to the ball cavity, the outer wall of the annular plate and the inner wall of the outer ring are provided with sealing structures adapted to the inner and outer rings of the annular sealing plates, and a plurality of plug-in structures for stably rotating the balls are arranged between the two annular sealing plates.

[0007] When using the above-mentioned submersible mixer motor bearing, during installation, a number of balls are placed in the ball cavity between the outer ring and the inner ring, and then two annular sealing plates are placed at both ends of the ball cavity. The inner and outer sides of the annular sealing plates are respectively abutted against the ring plate and the outer ring, and the two ends of the ball cavity are sealed by a sealing structure. At this time, a number of balls rotate stably through the plug-in structure between the two annular sealing plates. When the motor output shaft drives the inner ring to rotate, the inner ring abuts against the number of balls and rotates stably, and at the same time, the inner ring rotates between the two ring plates, thereby realizing stable rotation of the motor output shaft.

[0008] Preferably, the inner ring diameter of the ring plate is larger than the inner ring diameter of the inner ring, and both ends of the inner ring along the axial direction are fixedly connected with sealing rings abutting against the inner ring of the ring plate.

[0009] Preferably, a T-shaped ring strip is fixedly connected to the surface of the ring plate, and a T-shaped ring groove slidably connected to the T-shaped ring strip is provided on the inner ring surface.

[0010] Preferably, the T-ring strip and the T-ring groove are clearance-fitted.

[0011] Preferably, the sealing structure comprises a sealing ring fixedly connected to the inner and outer rings of the annular sealing plate, and sealing ring grooves adapted to the sealing ring are provided on the outer ring and the inner wall of the outer ring of the ring plate.

[0012] Preferably, the plug-in structure includes an insertion rod connected to the surface of one of the annular sealing plates, the ball is provided with a socket for sleeved with the insertion rod, and the other annular sealing plate is provided with a threaded connector for fixing the insertion rod.

[0013] Preferably, the threaded connector includes a threaded sleeve fixedly connected to the surface of one of the annular sealing plates, and the diameter of the threaded sleeve is the same as the diameter of the insertion rod. The insertion rod is rotatably connected to the other annular sealing plate, and the end of the insertion rod is fixedly connected to a bolt threadedly connected to the threaded sleeve.

[0014] The beneficial effects are:

[0015] The inner and outer sides of the annular sealing plate are respectively in contact with the ring plate and the outer ring, and the two ends of the ball cavity are sealed through the sealing structure. At this time, a number of balls rotate stably through the plug-in structure between the two annular sealing plates. When the motor output shaft drives the inner ring to rotate, the inner ring abuts against the several balls and rotates stably. At the same time, the inner ring rotates between the two ring plates to achieve stable rotation of the motor output shaft. When the inner ring rotates with the motor shaft, the annular sealing plate is prevented from rubbing against the inner and outer rings, thereby preventing liquid from penetrating into the bearing, thereby improving the waterproof effect and service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a split stereogram of the utility model;

[0018] Figure 2 It is a disassembled stereoscopic diagram of the annular sealing plate of the utility model;

[0019] Figure 3 It is a cross-sectional stereoscopic view of the inner ring of the utility model.

[0020] The following are the descriptions of the reference numerals:

[0021] 1. Outer ring; 2. Inner ring; 3. Ball cavity; 4. Ball; 5. Ring plate; 6. Annular sealing plate; 7. Insert rod; 8. Insert hole; 9. Threaded sleeve; 10. Bolt; 11. T-ring groove; 12. T-ring strip; 13. Sealing ring; 14. Sealing ring groove; 15. Sealing ring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0023] See also Figure 1-Figure 3 As shown, the utility model provides a submersible mixer motor bearing, comprising an outer ring 1 and an inner ring 2, the inner ring 2 is sleeved inside the outer ring 1, the clearance between the outer ring 1 and the inner ring 2 forms a ball cavity 3, a plurality of balls 4 are arranged in the ball cavity 3, both ends of the inner ring 2 along the axial direction are rotatably connected with annular plates 5, both ends of the outer ring 1 and the inner ring 2 along the axial direction are provided with annular sealing plates 6, and the size of the annular sealing plates 6 is adapted to the ball cavity 3, the outer wall of the annular plate 5 and the inner wall of the outer ring 1 are provided with sealing structures adapted to the inner and outer rings of the annular sealing plates 6, and a plurality of plug-in structures for stably rotating the balls 4 are arranged between the two annular sealing plates 6.

[0024] Reference Figure 3 As shown, the inner ring diameter of the ring plate 5 is larger than the inner ring diameter of the inner ring 2, and both ends of the inner ring of the inner ring 2 along its axial direction are fixedly connected with sealing rings 15 that abut against the inner ring of the ring plate 5. The sealing ring 15 can prevent liquid from penetrating from the gap between the ring plate 5 and the inner ring 2 to perform preliminary sealing.

[0025] Furthermore, a T-shaped ring strip 12 is fixedly connected to the surface of the ring plate 5, and a T-shaped ring groove 11 is provided on the surface of the inner ring 2 for sliding connection with the T-shaped ring strip 12. The clearance fit between the T-shaped ring strip 12 and the T-shaped ring groove 11 can make the rotation of the ring plate 5 more stable. At the same time, the clearance fit between the two can further prevent liquid leakage.

[0026] As an optional embodiment, the sealing structure includes a sealing ring 13 fixedly connected to the inner and outer rings of the annular sealing plate 6. A sealing ring groove 14 adapted to the sealing ring 13 is provided on the outer ring of the annular plate 5 and the inner wall of the outer ring 1. The inner and outer sealing rings 13 can be respectively installed on the annular plate 5 and the outer ring 1 and located in the sealing ring groove 14, so that the annular sealing plate 6 can seal the two ends of the ball cavity 3 to prevent leakage.

[0027] Reference Figure 2 The bolt 10 is threadedly connected to the threaded sleeve 9 by the threaded sleeve 9, and the ball 4 is connected to the outer surface of the plug rod 7 by the threaded sleeve 9.

[0028] With the above structure, during installation, a number of balls 4 are placed in the ball cavity 3 between the outer ring 1 and the inner ring 2, and then two annular sealing plates 6 are placed at both ends of the ball cavity 3. The inner and outer sides of the annular sealing plates 6 are respectively abutted against the ring plate 5 and the outer ring 1, and the two ends of the ball cavity 3 are sealed through the sealing structure. At this time, a number of balls 4 are stably rotated through the plug-in structure between the two annular sealing plates 6. When the motor output shaft drives the inner ring 2 to rotate, the inner ring 2 abuts against the number of balls 4 and rotates stably, and at the same time, the inner ring 2 rotates between the two ring plates 5, thereby realizing the stable rotation of the motor output shaft.

[0029] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A submersible mixer motor bearing, characterized in that: The invention comprises an outer ring (1) and an inner ring (2), wherein the inner ring (2) is sleeved inside the outer ring (1), and the clearance between the outer ring (1) and the inner ring (2) forms a ball cavity (3), wherein a plurality of balls (4) are arranged in the ball cavity (3), and the inner ring (2) is rotatably connected with an annular plate (5) at both ends along its axial direction, and an annular sealing plate (6) is arranged at both ends along its axial direction, and the annular sealing plate (6) is adapted to the size of the ball cavity (3), and the outer wall of the annular plate (5) and the inner wall of the outer ring (1) are provided with a sealing structure adapted to the inner and outer rings of the annular sealing plate (6), and a plurality of plug-in structures for stably rotating the balls (4) are arranged between the two annular sealing plates (6).

2. A submersible mixer motor bearing according to claim 1, characterized in that: The inner ring diameter of the ring plate (5) is larger than the inner ring diameter of the inner ring (2), and both ends of the inner ring of the inner ring (2) along its axial direction are fixedly connected with sealing rings (15) that abut against the inner ring of the ring plate (5).

3. A submersible mixer motor bearing according to claim 1, characterized in that: A T-shaped ring strip (12) is fixedly connected to the surface of the ring plate (5), and a T-shaped ring groove (11) is provided on the surface of the inner ring (2) and is slidably connected to the T-shaped ring strip (12).

4. A submersible mixer motor bearing according to claim 3, characterized in that: The T-shaped ring strip (12) and the T-shaped ring groove (11) are clearance-fitted.

5. A submersible mixer motor bearing according to claim 1, characterized in that: The sealing structure comprises a sealing ring (13) fixedly connected to the inner and outer rings of the annular sealing plate (6), and a sealing ring groove (14) adapted to the sealing ring (13) is provided on the outer ring of the annular plate (5) and the inner wall of the outer ring (1).

6. A submersible mixer motor bearing according to claim 1, characterized in that: The plug-in structure comprises an insertion rod (7) connected to the surface of one of the annular sealing plates (6), a plug hole (8) is provided on the ball (4) and is sleeved with the insertion rod (7), and a threaded connector for fixing the insertion rod (7) is provided on the other annular sealing plate (6).

7. A submersible mixer motor bearing according to claim 6, characterized in that: The threaded connector comprises a threaded sleeve (9) fixedly connected to the surface of one of the annular sealing plates (6), and the diameter of the threaded sleeve (9) is the same as the diameter of the insertion rod (7). The insertion rod (7) is rotatably connected to the other annular sealing plate (6), and the end of the insertion rod (7) is fixedly connected to a bolt (10) threadedly connected to the threaded sleeve (9).

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