CN207364099U

CN207364099U - A kind of novel high speed bearing shell

Info

Publication number: CN207364099U
Application number: CN201721108836.9U
Authority: CN
Inventors: 沈俊; 鲁玉龙; 吴秋平; 梅亮; 王雷
Original assignee: HUANYU BEARING BUSH CO Ltd
Current assignee: HUANYU BEARING BUSH CO Ltd
Priority date: 2017-08-31
Filing date: 2017-08-31
Publication date: 2018-05-15
Anticipated expiration: 2027-08-31

Abstract

The utility model discloses a kind of novel high speed bearing shell, including high-speed bearing body (1), tile fragment (2), oil film wedge (3) and fuel feed hole (4), the tile fragment (2) is located at high-speed bearing body (1) inner surface, the high-speed bearing body (1) is equipped with multiple fuel feed holes (4), the oil film wedge (3) is located at tile fragment (2) upper surface, the radian of the tile fragment (2) is less than the radian of high-speed bearing body (1), the tile fragment (2) is spirally connected by bolt (5) with high-speed bearing body (1) and bolt (5) head is flushed with high-speed bearing body (1), there are gap L between the tile fragment (2) and high-speed bearing body (1), further include oil outlet (6), the oil outlet (6) connects through the gap in tile fragment (2) and oil film wedge (3) and between tile fragment (2) and high-speed bearing body (1).

Description

A kind of novel high speed bearing shell

Technical field

A kind of bearing shell is the utility model is related to, particularly relates to a kind of novel high speed bearing shell.

Background technology

Bearing shell (bearingsheLL) is the part of sliding bearing and journal contact, and shape is the semi-cylindrical of tiles, non- Ordinary light is slided, and is generally made of wear-resistant materials such as bronze, antifriction alloys, requires to have when sliding bearing works, between bearing shell and shaft One layer of very thin oil film plays lubricating action.It there is direct friction if insufficient lubrication, between bearing shell and shaft, friction can produce Raw very high temperature, although bearing shell is made of special High-temperature resistant alloy material, occurs the high temperature of direct friction generation still So it is enough to be burnt out.Bearing shell is also possible to since load is excessive, temperature is excessive, there are the factor such as impurity or viscosity exception for lubricating oil Cause tile kilning, sliding bearing just damages after tile kilning.

With the specific demand of special industrial and some industries, the rotating speed of sliding bearing will reach higher rotation speed, therefore, high The design of fast bearing is come into being, the high-speed bearing of currently available technology as shown in Figure 1, including high-speed bearing body 1a, tile fragment 2a, Oil film wedge 3a, fuel feed hole 4a, the tile fragment 2a surfaces are equipped with oil film wedge 3a, and the tile fragment 2a is located inside high-speed bearing body 1a, described Running through on tile fragment 2a and high-speed bearing body 1a has multiple fuel feed hole 4a；This is the structure of universal high-speed bearing at present, its with it is general The maximum quantity, the connection mode of high-speed bearing body and the design of oil film wedge difference lies in fuel feed hole of axis watt, reason are also It is that the bearing speed demand that high-speed bearing bush is applicable in is too high, but such design is still easier to cause the service life because rotating speed is excessive Reduce, easily occur burning scrapping.

Utility model content

For above-mentioned deficiency of the prior art, oil circuit is more uniform in a kind of tile fragment of the utility model offer and oil film divides The more uniform novel high speed bearing shell of cloth.

To realize above technical purpose, the technical solution of the utility model is:A kind of novel high speed bearing shell, including high speed shaft Hold body, tile fragment, oil film wedge and fuel feed hole, the tile fragment is located at surface in high-speed bearing body, the high-speed bearing body be equipped with it is multiple into Oilhole, the oil film wedge are located at tile fragment upper surface, and the radian of the tile fragment is less than the radian of high-speed bearing body, and the tile fragment passes through spiral shell Bolt is spirally connected with high-speed bearing body and bolt head is flushed with high-speed bearing body, and there are gap between tile fragment and the high-speed bearing body L, further includes oil outlet, and the oil outlet connects through the gap in tile fragment and oil film wedge and between tile fragment and high-speed bearing body It is logical.

Preferably, the cross section of the oil outlet is triangle.

Preferably, the ultimate range of the gap L is no more than 1 centimetre.

Preferably, tile fragment is made of beryllium oxide ceramics.

Preferably, the bore of the oil outlet is 3-5 millimeters.

From the above, it can be seen that the utility model possesses advantages below：The design is in bolt head and high-speed bearing In the case that body flushes, the radian that the radian of the tile fragment is less than to high-speed bearing body on the one hand to ensure sliding bearing tile fragment Interior can rotate at a high speed, while existing gap causes oil to enter fuel feed hole rear portion meeting between sliding bearing tile fragment and tile fragment Form oil film on the oil film wedge surface of tile fragment, on the other hand can enter tile fragment bottom by gap, furthermore due to oil outlet through In tile fragment and oil film wedge, on the one hand the lubricating oil in gap can be formed negative because of the high-speed rotation of bearing in the exit of oil outlet Pressure, on the other hand due to the pump oil pressure of fuel feed hole so that oil outlet can be further fuel-displaced, further such that the surface of oil film wedge Film distribution is more uniform；And such design also has the advantages of one very big, i.e. the lubricating oil on oil film wedge surface is no longer solid Fixed part oil is all the time in oil film wedge surface lubrication, but the oil unnecessary when lubricating oil is excessive can also enter oil outlet, also work as profit When lubricating oil is very few, the lubricating oil in gap can also flow out oil outlet so as to reach the effect of lubrication；Whole lubricating oil is in inside Flowing help can be carried out in oil circuit to radiate and lubricate.

Brief description of the drawings

Fig. 1 is the profile of the high-speed bearing bush of the prior art；

Fig. 2 is the profile of the high-speed bearing bush of the utility model；

Fig. 3 is the close-up schematic view of the A of the high-speed bearing bush of the utility model.

Brief description of the drawings：The prior art：1a, high-speed bearing body, 2a, tile fragment, 3a, oil film wedge, 4a, fuel feed hole.

The utility model：1st, high-speed bearing body, 2, tile fragment, 3, oil film wedge, 4, fuel feed hole, 5, bolt, 6, oil outlet.

Embodiment

As shown in the figure, a kind of novel high speed bearing shell, including high-speed bearing body 1, tile fragment 2, oil film wedge 3 and fuel feed hole 4, described watt Block 2 is located at 1 inner surface of high-speed bearing body, and the high-speed bearing body 1 is equipped with multiple fuel feed holes 4, and the oil film wedge 3 is located on tile fragment 2 Surface, the radian of the tile fragment 2 are less than the radian of high-speed bearing body 1, and the tile fragment 2 is spirally connected by bolt 5 and high-speed bearing body 1 And 5 head of bolt is flushed with high-speed bearing body 1, there are gap L between the tile fragment 2 and high-speed bearing body 1, oil outlet is further included 6, the oil outlet 6 is connected through the gap in tile fragment 2 and oil film wedge 3 and between tile fragment 2 and high-speed bearing body 1；It is described go out The cross section of hydraulic fluid port 6 is triangle；The ultimate range of the gap L is no more than 1 centimetre；Tile fragment 2 is made of beryllium oxide ceramics；Institute The bore for stating oil outlet 6 is 3-5 millimeters.

In the case that the design flushes on 5 head of bolt with high-speed bearing body 1, the radian of the tile fragment 2 is less than at a high speed The radian of bearing body 1 on the one hand to ensure can rotate at a high speed in sliding bearing tile fragment 2, at the same sliding bearing tile fragment 2 with watt Existing gap causes oil to enter fuel feed hole rear portion and can form oil film on the oil film wedge surface of tile fragment between block 2, on the other hand It can enter 2 bottom of tile fragment by gap, furthermore since oil outlet 6 is through in tile fragment 2 and oil film wedge 3, on the one hand in gap Lubricating oil can be because the high-speed rotation of bearing forms negative pressure in the exit of oil outlet 6, on the other hand due to the pump oil of fuel feed hole 4 Pressure so that oil outlet can be further fuel-displaced, further such that the sea surface oil slick distribution of oil film wedge 3 is more uniform；And so Design also have the advantages of one very big, i.e., the lubricating oil on oil film wedge surface is no longer that fixed part oil is moistened on oil film wedge surface all the time It is sliding, but the oil unnecessary when lubricating oil is excessive can also enter oil outlet, also when lubricating oil is very few, the lubricating oil in gap Oil outlet can be flowed out so as to reach the effect of lubrication；Whole lubricating oil can carry out flowing help in internal oil circuit and radiate and moisten It is sliding.

In the specific implementation, after oil pressure first being brought up to certain pressure during oiling in fuel feed hole, stagnate a period of time, profit Lubricating oil can flow into the gap of tile fragment and high-speed bearing body 1 by fuel feed hole, gap and tile fragment 2 and oil between tile fragment and tile fragment Oil outlet 6 in wedge 3, subsequent intensified pressure so that whole lubricating oil is evenly affixed to oil film wedge surface by oil outlet and forms oil Film.

The utility model and embodiments thereof are described above, this describe it is no restricted, shown in attached drawing Also it is one of embodiment of the utility model, actual structure is not limited thereto.All in all if this area it is general Logical technical staff is enlightened by it, without deviating from the purpose of the present invention, is not inventively designed with being somebody's turn to do The similar frame mode of technical solution and embodiment, all should belong to the protection range of the utility model.

Claims

1. a kind of novel high speed bearing shell, including high-speed bearing body (1), tile fragment (2), oil film wedge (3) and fuel feed hole (4), the tile fragment (2) high-speed bearing body (1) inner surface is located at, the high-speed bearing body (1) is equipped with multiple fuel feed holes (4), and the oil film wedge (3) is located at Tile fragment (2) upper surface, the radian of the tile fragment (2) are less than the radian of high-speed bearing body (1), and the tile fragment (2) passes through bolt (5) It is spirally connected with high-speed bearing body (1) and bolt (5) head is flushed with high-speed bearing body (1), the tile fragment (2) and high-speed bearing body (1) there are gap L between, further include oil outlet (6), the oil outlet (6) through in tile fragment (2) and oil film wedge (3) and with watt Gap connection between block (2) and high-speed bearing body (1).

2. novel high speed bearing shell according to claim 1, it is characterised in that：The cross section of the oil outlet (6) is triangle Shape.

3. novel high speed bearing shell according to claim 1, it is characterised in that：The ultimate range of the gap L is no more than 1 li Rice.

4. novel high speed bearing shell according to claim 1, it is characterised in that：Tile fragment (2) is made of beryllium oxide ceramics.

5. novel high speed bearing shell according to claim 1, it is characterised in that：The bore of the oil outlet (6) is 3-5 millis Rice.