Bearing assembly structure with high protection grade

Abstract

The utility model relates to a bearing assembly structure with a high protection grade, which comprises a rotating shaft, a bearing body is mounted on the rotating shaft in a matched manner, an end cover is mounted on an outer ring of the bearing body in a matched manner, and a bearing inner cover is mounted at one end of the bearing body in a matched manner and is sleeved on the rotating shaft. The inner end face of the bearing inner cover is connected with the end cover in a sealed mode through a first O-shaped sealing ring. A bearing outer cover is installed at the other end of the bearing body in a matched mode, an oil baffle disc and a check ring are installed on the portion, between the bearing outer cover and the bearing body, of the rotating shaft, meanwhile, the inner end face of the bearing outer cover is connected with the end cover in a sealed mode through a second O-shaped sealing ring, and in addition, an inner ring of the bearing outer cover is connected with the rotating shaft through a framework oil seal. The bearing assembly is compact and reasonable in structure and convenient to operate, reliable assembly work of the bearing can be conveniently completed through the unique design of bearing assembly, the sealing requirement is met, the bearing assembly can be applied to places such as rivers and seasides, and the service life is long.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing assembly structure technical field, especially a bearing assembly structure of high protection grade. BACKGROUND

[0002] Motor bearing is also called motor bearing or motor bearing, which is a special bearing specially applied to motor or motor. The bearing used by motor is a part of supporting shaft, which can guide the rotation of shaft or bear the part of shaft. The concept of bearing is very broad. The commonly used bearings of motor are four types, namely rolling bearing, sliding bearing, joint bearing and oil-containing bearing. The most common motor bearing is rolling bearing, that is, bearing with rolling body.

[0003] At present, the motor user has higher and higher requirements for the protection level of motor. Due to the rotation of motor shaft, it is difficult to seal the motor, especially the motor used in places such as river and sea. Due to wind and tide, the motor may be immersed in water for a short time, which puts high requirements on the sealing structure of motor. Once water enters the motor cavity, it will cause insulation damage and winding burnout, so that the matching equipment cannot work. CONTENT OF THE UTILITY MODEL

[0004] In view of the above-mentioned defects in the prior art, the application provides a bearing assembly structure with high protection level, so that the assembly of bearing can be conveniently completed, the sealing performance is good, the work is stable and reliable, the use requirement is met, and the service life of motor is long.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A bearing assembly structure with high protection level, comprising a rotating shaft, a bearing body is installed on the rotating shaft in cooperation, an end cover is installed on the outer ring of the bearing body in cooperation, a bearing inner cover is installed on one end of the bearing body in cooperation, the bearing inner cover is sleeved on the rotating shaft, and the inner end face of the bearing inner cover is sealed and connected with the end cover through a No. 1 O-shaped sealing ring; a bearing outer cover is installed on the other end of the bearing body in cooperation, an oil baffle and a baffle are installed on the rotating shaft between the bearing outer cover and the bearing body, at the same time, the inner end face of the bearing outer cover is sealed and connected with the end cover through a No. 2 O-shaped sealing ring, in addition, the inner ring of the bearing outer cover is also connected with the rotating shaft through a skeleton oil seal.

[0007] As a further improvement of the above technical scheme:

[0008] The bearing outer cover, the end cover and the bearing inner cover are locked by using an internal hexagonal screw.

[0009] A stepped hole is formed in the bearing outer cover, a sealing gasket is installed at the step, and a stuffing box is filled in the stepped hole.

[0010] The skeleton oil seal is provided with two.

[0011] The end cover is provided with an oil injection nozzle.

[0012] The bottom of the bearing outer cover is provided with an oil discharge screw plug.

[0013] The inner end face of the bearing outer cover is provided with two spaced O-shaped ring grooves for installing a second O-shaped sealing ring.

[0014] The bearing inner cover is provided with an oil inlet channel communicated with the oil hole in the end cover.

[0015] The cross section of the oil inlet channel is in a vertical state of "π" type structure.

[0016] The end cover is provided with a machine base matching surface, and the machine base matching surface is provided with a third O-shaped sealing ring.

[0017] The motor bearing assembly has the advantages of compact structure, reasonable design, convenient operation, reliable rotation and distribution of the bearing, and long service life.

[0018] The motor bearing assembly has the advantages of compact structure, reasonable design, convenient operation, reliable rotation and distribution of the bearing, and long service life.

[0019] The sealing structure of the motor bearing assembly is reliable, simple in structure, can prevent water with a certain pressure from entering the motor, meets the sealing requirement of IP67, and prolongs the service life of the motor.

[0020] The motor bearing assembly can meet the requirements of customers and be applied to IP67 bearing assembly, and is stable and reliable in work. DETAILED DESCRIPTION

[0021] Figure 1 It is a front view of the utility model.

[0022] Figure 2 It is a front view of the utility model. Figure 1 It is a full cross-sectional view along A-A.

[0023] Figure 3 It is a front view of the utility model. Figure 2 It is a partial enlarged view of E part.

[0024] Figure 4 It is a front view of the utility model.

[0025] Figure 5 It is a full cross-sectional view along B-B. Figure 4

[0026] It is a full cross-sectional view along B-B.Figure 6 As Figure 5 The local enlarged view of the F part.

[0027] Figure 7 It is the front view of the bearing outer cover of the utility model.

[0028] Figure 8 As Figure 7 The full cross-sectional view along the C-C section.

[0029] Figure 9 It is the front view of the bearing inner cover of the utility model.

[0030] Figure 10 As Figure 9 The full cross-sectional view along the D-D section.

[0031] Wherein: 1, end cover; 2, No. 1 O-shaped sealing ring; 3, bearing inner cover; 4, rotating shaft; 5, oil discharge screw plug; 6, bearing outer cover; 7, check ring; 8, oil baffle; 9, bearing body; 10, No. 2 O-shaped sealing ring; 11, oil injection nozzle; 12, No. 3 O-shaped sealing ring; 13, inner hexagonal screw; 14, sealing gasket; 15, stuffing box; 16, skeleton oil seal; 17, base matching surface;

[0032] 301, oil inlet channel; 302, No. 1 O-ring groove;

[0033] 601, No. 2 O-ring groove; 602, oil seal groove; 603, oil discharge channel. DETAILED DESCRIPTION

[0034] The specific implementation of the utility model will be described below in combination with the drawings.

[0035] As Figures 1-10 shown, the bearing assembly structure with high protection level of the embodiment, including rotating shaft 4, rotating shaft 4 is installed with bearing body 9 in coordination, the outer ring of bearing body 9 is installed with end cover 1 in coordination, is installed with bearing inner cover 3 in coordination at one end of bearing body 9, and bearing inner cover 3 is sleeved on rotating shaft 4, and the inner end face of bearing inner cover 3 is sealedly connected with end cover 1 through No. 1 O-shaped sealing ring 2;Bearing outer cover 6 is installed with oil baffle 8 and check ring 7 on rotating shaft 4 between bearing outer cover 6 and bearing body 9, at the same time, the inner end face of bearing outer cover 6 is sealedly connected with end cover 1 through No. 2 O-shaped sealing ring 10, in addition, the inner ring of bearing outer cover 6 is also connected with rotating shaft 4 through skeleton oil seal 16.

[0036] Bearing outer cover 6, end cover 1 and bearing inner cover 3 are locked by inner hexagonal screw 13.

[0037] Stepped hole is opened on bearing outer cover 6, and sealing gasket 14 is installed at the step, and stuffing box 15 is filled in the stepped hole.

[0038] The skeleton oil seal 16 is provided with two.

[0039] The end cover 1 is provided with an oil injection nozzle 11.

[0040] The bottom of the bearing outer cover 6 is provided with an oil discharge screw plug 5.

[0041] The inner end face of the bearing outer cover 6 is provided with two spaced O-shaped ring grooves 601 for installing the second O-shaped sealing ring 10, the inner ring of the bearing outer cover 6 is provided with an oil seal groove 602 for installing the skeleton oil seal 16, and the bottom of the bearing outer cover 6 is provided with an oil discharge channel 603.

[0042] The bearing inner cover 3 is provided with an oil inlet channel 301 communicated with the oil hole in the end cover 1, and the inner end face of the bearing inner cover 3 is provided with two spaced O-shaped ring grooves 302.

[0043] The cross section of the oil inlet channel 301 is in a vertical state of π type structure.

[0044] The end cover 1 is provided with a seat matching surface 17, and the seat matching surface 17 is provided with a third O-shaped sealing ring 12.

[0045] The specific form of the bearing assembly structure with high protection level is as follows:

[0046] Mainly includes end cover 1, open type bearing (i.e. bearing body 9), oil baffle 8, bearing inner cover 3, bearing outer cover 6 and other components.

[0047] Among them, the bearing inner cover 3, the bearing outer cover 6 and the end cover 1 are sealed by O-shaped sealing ring.

[0048] Among them, the oil injection nozzle 11 and the end cover 1 are sealed by O-shaped sealing ring.

[0049] Among them, the bearing outer cover 6 and the rotating shaft 4 are sealed by two sets of skeleton oil seals 16.

[0050] Among them, the end cover 1 and the machine base are sealed by O-shaped sealing ring, and the seat matching surface 17 is formed on the end cover 1.

[0051] Among them, the end cover 1, the bearing inner cover 3 and the bearing outer cover 6 are locked by the internal hexagonal screw 13, and the special filling funnel 15 for motor is used to seal the connecting screw.

[0052] In the above assembly process, all threaded surfaces and end surfaces are evenly coated with sealing glue, and all stop surfaces and the surfaces of the skeleton oil seal 16 are evenly coated with high temperature and high speed lubricating grease.

[0053] In the actual installation process:

[0054] Firstly, the bearing inner cover 3 is installed at the right end of the rotating shaft 4, specifically, the No. 1 O-shaped sealing ring 2 is fixed in the No. 1 O-shaped ring groove 302 by using glue, then the bearing inner cover 3 is sleeved on the rotating shaft 4, then the bearing body 9 is installed on the rotating shaft 4, the outer ring of the bearing body 9 is installed with the end cover 1, the bearing inner cover 3 is in close contact with the end cover 1 through the No. 1 O-shaped sealing ring 2, then the oil baffle 8 and the retainer ring 7 are installed in sequence at the left end of the bearing body 9, then the bearing outer cover 6 is installed on the rotating shaft 4 outside the retainer ring 7 through two skeleton oil seals 16, at the same time, the bearing outer cover 6 is in close contact with the end cover 1 through the No. 2 O-shaped sealing ring 10, the oil discharge screw plug 5 is installed at the bottom of the bearing outer cover 6, the bearing outer cover 6, the end cover 1 and the bearing inner cover 3 are locked by using the inner hexagonal screw 13, at the same time, the sealing gasket 14 and the packing box 15 are installed at the bearing outer cover 6. The whole installation is simple, the working efficiency is high, the sealing effect is good, and the use requirements are met.

[0055] The above description is the explanation of the utility model, not the limitation of the utility model, the range defined by the utility model is seen from the claims, within the protection range of the utility model, any form of modification can be made.

Claims

1. A high protection class bearing assembly structure, characterized by: The application relates to a bearing cover (6), an end cover (1) and a bearing inner cover (3), wherein the bearing cover (6) is matched with a bearing body (9) on a rotating shaft (4), the outer ring of the bearing body (9) is matched with the end cover (1), the inner end surface of the bearing inner cover (3) is matched with one O-shaped sealing ring (2) and the end cover (1), the other end of the bearing body (9) is matched with the bearing outer cover (6), the rotating shaft (4) between the bearing outer cover (6) and the bearing body (9) is matched with an oil baffle (8) and a baffle ring (7), the inner end surface of the bearing outer cover (6) is matched with the end cover (1) through a second O-shaped sealing ring (10), the inner ring of the bearing outer cover (6) is further matched with the rotating shaft (4) through a skeleton oil seal (16).

2. A high protection class bearing assembly as set forth in claim 1 characterized in that: The bearing outer cover (6), the end cover (1) and the bearing inner cover (3) are locked by using an internal hexagonal screw (13).

3. A high protection class bearing assembly according to claim 2, characterized in that: A stepped hole is formed in the bearing outer cover (6), a sealing gasket (14) is arranged at the step, and a stuffing box (15) is filled in the stepped hole.

4. The high protection class bearing assembly of claim 1, wherein: The skeleton oil seal (16) is provided with two.

5. The high protection class bearing assembly of claim 1, wherein: The end cover (1) is provided with an oil injection nozzle (11).

6. A high protection class bearing assembly as set forth in claim 1 characterized in that: The bottom of the bearing outer cover (6) is provided with an oil discharge screw plug (5).

7. A high protection class bearing assembly as set forth in claim 1 characterized in that: The inner end surface of the bearing outer cover (6) is provided with two spaced second O-shaped ring grooves (601) for arranging the second O-shaped sealing ring (10), the inner ring of the bearing outer cover (6) is provided with an oil seal groove (602) for arranging the skeleton oil seal (16), and the bottom of the bearing outer cover (6) is provided with an oil discharge channel (603).

8. The high protection class bearing assembly of claim 1, wherein: The bearing inner cover (3) is provided with an oil inlet channel (301) communicated with the internal oil hole of the end cover (1), and the inner end surface of the bearing inner cover (3) is provided with two spaced first O-shaped ring grooves (302).

9. A high protection class bearing assembly according to claim 8, characterized in that: The cross section of the oil inlet channel (301) is in a vertical "pi" type structure.

10. The high protection class bearing assembly of claim 1, wherein: The end cover (1) is provided with a machine base matching surface (17), and the machine base matching surface (17) is provided with a third O-shaped sealing ring (12).

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