CN209909003U

CN209909003U - Improved hard alloy sliding bearing

Info

Publication number: CN209909003U
Application number: CN201920811384.3U
Authority: CN
Inventors: 陈锦溪
Original assignee: Ningbo Man Feng Seal Technology Co Ltd
Current assignee: Ningbo Man Feng Seal Technology Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-01-07
Anticipated expiration: 2029-05-31

Abstract

The utility model relates to the technical field of sliding bearings, in particular to an improved hard alloy sliding bearing, which solves the defect of easy oil leakage of the sliding bearing in the prior art, and comprises a bearing seat, a bearing cover and a rotating shaft, wherein the bearing cover is positioned above the bearing seat, the bearing seat is connected with the bearing cover through a bolt, the rotating shaft is provided with a shaft neck, the shaft neck is arranged between the bearing seat and the bearing cover, the top of the bearing cover is provided with an oil filling hole, an oil cup is connected with the oil filling hole through a thread, a lower bearing bush is sleeved in the bearing seat, an upper bearing bush is sleeved in the bearing cover, a lower bearing bush and an upper bearing bush are sleeved on the shaft neck, a shaft shoulder is arranged between the rotating shaft and the shaft neck, and a thrust tile is tightly attached between the shaft shoulder and the upper bearing bush and the lower bearing bush, the oil baffle plate and the oil baffle ring in the utility model can realize the purpose, and the wear of the shaft neck is reduced by matching the upper bearing bush and the lower bearing bush.

Description

Improved hard alloy sliding bearing

Technical Field

The utility model relates to a slide bearing technical field especially relates to improved generation carbide slide bearing.

Background

The sliding bearing is widely applied in various industries, and along with the continuous expansion of the application field of the sliding bearing and the continuous progress of the technology, the structure of the sliding bearing is more and more complex. Like some seat-type sliding bearings used for horizontal water turbines, generators, fans, gear boxes and the like, the seat-type sliding bearings often need to bear certain axial thrust, and in order to reduce design and manufacturing cost and save axial space, the thrust bearings are often combined with radial bearings to form radial thrust bearings. The oil demand of a thrust pad of the radial thrust bearing is often larger, the internal space structure of the radial thrust bearing is usually compact, a large amount of oil is thrown to the bearing wall when the bearing runs, and flows to the gap between the shaft and the bearing sealing ring along the bearing wall, and the sealing ring is not enough to block due to the larger oil amount, so that the oil leakage phenomenon often occurs.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming of the easy oil leak of the sliding bearing in the prior art and providing an improved hard alloy sliding bearing.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

improved generation carbide slide bearing, including bearing frame, bearing cap and pivot, the bearing cap is located the top of bearing frame, and bearing frame and bearing cap pass through bolted connection, be equipped with the axle journal in the pivot, and the axle journal setting is between bearing frame and bearing cap, the top of bearing cap is equipped with the oil filler point, and threaded connection has the oil cup in the oil filler point, the cover is equipped with lower bearing bush in the bearing frame, the cover is equipped with the upper bearing bush in the bearing cap, the cover is equipped with lower shaft bush and upper bearing bush on the axle journal.

Preferably, a shaft shoulder is arranged between the rotating shaft and the shaft neck, and a thrust bush is tightly attached between the shaft shoulder and the upper bearing bush and between the shaft shoulder and the lower bearing bush.

Preferably, the lower bearing bush and the upper bearing bush are connected with oil baffle plates through screws, and the oil baffle plates are annular and sleeved on the shaft shoulders.

Preferably, the inner wall of the bearing cover is connected with an oil retainer ring through a screw, and the oil retainer ring is sleeved on the rotating shaft.

Preferably, a sealing ring is tightly sleeved on the rotating shaft and is positioned between the bearing cover and the rotating shaft.

Preferably, the lower bushing and the upper bushing are sleeved with bushing fixing sleeves, and the bushing fixing sleeves are in sliding fit with the lower bearing bush and the upper bearing bush.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model provides a can realize preventing the purpose of oil leak after oil baffle and the oil scraper ring cooperation, reduce the waste of lubricating oil.

2. The lower bushing and the upper bushing have high hardness and high wear resistance, and are matched with the upper bearing bush and the lower bearing bush, so that the abrasion of the shaft neck is reduced.

Drawings

Fig. 1 is a schematic view of a partial cross-sectional structure of an improved cemented carbide sliding bearing according to the present invention;

fig. 2 is a schematic front view of a half-section structure of an improved cemented carbide sliding bearing according to the present invention;

fig. 3 is a schematic three-dimensional structure diagram of the improved cemented carbide sliding bearing provided by the present invention.

In the figure: the bearing comprises a bearing seat 1, a lower bearing bush 2, a shaft neck 3, an oil injection hole 4, a bearing cover 5, a bolt 6, an upper bearing bush 7, a lower bearing bush 8, an upper bearing bush 9, a bearing bush fixing sleeve 10, an oil cup 11, an oil baffle plate 12, an oil baffle ring 13, a sealing ring 14, a rotating shaft 15 and a thrust pad 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, an improved hard alloy sliding bearing comprises a bearing seat 1, a bearing cap 5 and a rotating shaft 15, wherein the bearing cap 5 is located above the bearing seat 1, the bearing seat 1 is connected with the bearing cap 5 through a bolt 6, a shaft neck 3 is arranged on the rotating shaft 15, the shaft neck 3 is arranged between the bearing seat 1 and the bearing cap 5, an oil filling hole 4 is formed in the top of the bearing cap 5, an oil cup 11 is connected with the oil filling hole 4 through a thread, a lower bearing bush 2 is sleeved in the bearing seat 1, an upper bearing bush 7 is sleeved in the bearing cap 5, a lower bearing bush 8 and an upper bearing bush 9 are sleeved on the shaft neck 3, a bushing fixing sleeve 10 is sleeved on the lower bearing bush 8 and the upper bearing bush 9, and the bushing fixing sleeve 10 is in.

A shaft shoulder is arranged between the rotating shaft 15 and the shaft neck 3, a thrust bush 16 is tightly attached between the shaft shoulder and the upper bearing bush 7 and between the shaft shoulder and the lower bearing bush 2, the lower bearing bush 2 and the upper bearing bush 7 are connected with an oil baffle plate 12 through screws, and the oil baffle plate 12 is annular and sleeved on the shaft shoulder.

The inner wall of the bearing cap 5 is connected with an oil retainer 13 through a screw, the oil retainer 13 is sleeved on a rotating shaft 15, a sealing ring 14 is tightly sleeved on the rotating shaft 15, and the sealing ring 14 is located between the bearing cap 5 and the rotating shaft 15.

Example (b): a small amount of lubricating oil overflows through a gap between the rotating shaft 15 and the oil baffle plate 12 and is thrown to the inner wall of the bearing seat 1, then the lubricating oil flows downwards along the inner wall of the bearing seat 1 under the action of gravity, an oil baffle ring 13 arranged in the inner cavity of the bearing seat 1 and opposite to the oil baffle plate 12 is used as a second seal to further block an oil path, so that the lubricating oil flowing downwards along the inner wall of the bearing seat 1 flows back into the oil chamber of the bearing seat 1 through a ring groove on the oil baffle ring 13, and the purpose of preventing oil leakage is achieved, wherein the lower shaft bushing 8 and the upper shaft bushing 9 have high hardness and high wear resistance, and the upper shaft bushing 7 and the lower shaft bushing 2 are matched to reduce.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Improved generation carbide sliding bearing, including bearing frame (1), bearing cap (5) and pivot (15), bearing cap (5) are located the top of bearing frame (1), and bearing frame (1) is connected through bolt (6) with bearing cap (5), its characterized in that, be equipped with axle journal (3) in pivot (15), and axle journal (3) set up between bearing frame (1) and bearing cap (5), the top of bearing cap (5) is equipped with oil filler point (4), and threaded connection has oil cup (11) in oil filler point (4), the cover is equipped with lower axle bush (2) in bearing frame (1), the cover is equipped with upper bearing shell (7) in bearing cap (5), the cover is equipped with lower shaft lining (8) and upper shaft lining (9) on axle journal (3).

2. The improvement of cemented carbide sliding bearing according to claim 1, characterized in that a shoulder is provided between the shaft (15) and the journal (3), and a thrust pad (16) is tightly attached between the shoulder and the upper (7) and lower (2) bearing shells.

3. The improved hard alloy sliding bearing according to claim 1, wherein the lower bearing bush (2) and the upper bearing bush (7) are connected with an oil baffle plate (12) through screws, and the oil baffle plate (12) is annular and is sleeved on the shaft shoulder.

4. The improved cemented carbide sliding bearing according to claim 1, characterized in that the inner wall of the bearing cap (5) is connected with an oil retainer ring (13) by screws, and the oil retainer ring (13) is sleeved on the rotating shaft (15).

5. An improved cemented carbide sliding bearing according to claim 1, characterized in that the shaft (15) is provided with a sealing ring (14) in a tight fit, and that the sealing ring (14) is located between the bearing cover (5) and the shaft (15).

6. An improved cemented carbide sliding bearing according to claim 1, characterized in that the lower bushing (8) and the upper bushing (9) are sleeved with bushing fixing sleeves (10), and the bushing fixing sleeves (10) are in sliding fit with the lower bearing bush (2) and the upper bearing bush (7).