CN215257430U

CN215257430U - Bearing box

Info

Publication number: CN215257430U
Application number: CN202121175769.9U
Authority: CN
Inventors: 刘磊; 温询; 罗绍华; 王方萍; 魏平
Original assignee: Chongqing Pump Industry Co Ltd
Current assignee: Chongqing Pump Industry Co Ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-12-21
Anticipated expiration: 2031-05-28

Abstract

The utility model relates to the technical field of bearing boxes, solves the technical problem of how to accelerate the cooling speed of return oil, and discloses a bearing box, wherein a bearing chamber and an oil chamber are arranged in the bearing box, and an oil storage chamber positioned at the bottom of the bearing box and an oil collecting tank positioned at the top of the bearing box are arranged in the oil chamber; the oil collecting tank is communicated with the upper part of the bearing through an oil inlet channel in the bearing chamber, an oil passing channel is arranged in the bearing box to communicate the upper part of the bearing with the lower part of the bearing, and the lower part of the bearing is communicated with the oil storage cavity through an oil return channel; the oil return passage comprises an inner ring oil return passage and an outer ring oil return passage, the inner ring oil return passage is communicated with a lower semi-ring cavity between the inner ring and the outer ring of the bearing, and the outer ring oil return passage penetrates through the bottom wall of the bearing chamber; the bottom surface of oil storage chamber includes the water conservancy diversion inclined plane, outer loop oil return passageway with the upper end on water conservancy diversion inclined plane links to each other for outer loop oil return expert's play fluid can be followed water conservancy diversion inclined plane water conservancy diversion to the low-lying department in oil storage chamber, thereby can form the convection current with the upper oil in the oil storage chamber.

Description

Bearing box

Technical Field

The utility model relates to a bearing box technical field.

Background

The bearing box is a box body part which plays a role in supporting and lubricating a bearing. In devices having rotating shafts, the shafts are typically supported for rotation by bearings, which are mounted in bearing housings filled with lubricating oil and lubricated during operation by the bearings. At present, generally throw oil into the bearing inner race with oil through the oil slinger and lubricate the bearing ball, take away partial heat through oil simultaneously and cool off. The bearing is cooled by absorbing heat by oil, but the oil does not have good heat dissipation measures, so that the oil is cooled slowly after flowing back.

SUMMERY OF THE UTILITY MODEL

Not enough to above-mentioned technique, the utility model provides a bearing box solves the technical problem who how to accelerate the cooling rate of backward flow fluid.

In order to solve the above technical problem, the utility model provides a pair of technical scheme as follows: a bearing box is provided with a bearing chamber and an oil chamber, wherein the oil chamber is internally provided with an oil storage cavity positioned at the bottom of the bearing box and an oil collecting tank positioned at the top of the bearing box; the oil collecting tank is communicated with the upper part of the bearing through an oil inlet channel in the bearing chamber, an oil passing channel is arranged in the bearing box to communicate the upper part of the bearing with the lower part of the bearing, and the lower part of the bearing is communicated with the oil storage cavity through an oil return channel; the oil return passage comprises an inner ring oil return passage and an outer ring oil return passage, the inner ring oil return passage is communicated with a lower semi-ring cavity between the inner ring and the outer ring of the bearing, and the outer ring oil return passage penetrates through the bottom wall of the bearing chamber; the bottom surface of oil storage chamber includes the water conservancy diversion inclined plane, outer loop oil return passageway with the upper end on water conservancy diversion inclined plane links to each other for outer loop oil return expert's play fluid can be followed water conservancy diversion inclined plane water conservancy diversion to the low-lying department in oil storage chamber, thereby can form the convection current with the upper oil in the oil storage chamber.

Furthermore, a cooling water ring cavity surrounding the bearing chamber is arranged in the wall of the bearing box; the upper part of the cooling water ring cavity is communicated with a water inlet, and the lower part of the cooling water ring cavity is communicated with a water outlet.

Compared with the prior art, the utility model has the advantages of include:

1. the utility model discloses a combination of water conservancy diversion inclined plane and outer loop oil return passage makes the lower floor's hot oil after the backward flow form the convection current with the upper cold oil, and hot oil cooling is so compared with prior art with hot oil cooling with higher speed, and in the same time, the oil temperature is lower.

2. Through setting up the cooling water ring chamber, can let in cooling water and carry out the heat exchange with fluid, more quick reduction fluid temperature.

Drawings

Fig. 1 is a schematic view of an assembly structure of a bearing housing in the present embodiment.

Detailed Description

Referring to fig. 1, in a bearing box 1, a bearing chamber and an oil chamber are arranged in the bearing box 1, and an oil storage chamber 101 located at the bottom of the bearing box 1 and an oil collecting tank 102 located at the top of the bearing box 1 are arranged in the oil chamber; the oil collecting tank 102 is communicated with the upper part of the bearing through an oil inlet channel in the bearing chamber, an oil passing channel is arranged in the bearing box 1 to communicate the upper part of the bearing with the lower part of the bearing, and the lower part of the bearing is communicated with the oil storage chamber 101 through an oil return channel; the oil return passage comprises an inner ring oil return passage and an outer ring oil return passage, the inner ring oil return passage is communicated with a lower semi-ring cavity between the inner ring and the outer ring of the bearing, and the outer ring oil return passage penetrates through the bottom wall of the bearing chamber; the bottom surface of oil storage chamber 101 includes the water conservancy diversion inclined plane, outer loop oil return passageway with the upper end on water conservancy diversion inclined plane links to each other for outer loop oil return expert's play fluid can be followed water conservancy diversion inclined plane water conservancy diversion to the low-lying department of oil storage chamber 101, thereby can form the convection current with the upper oil in the oil storage chamber 101.

In this embodiment, a cooling water ring cavity 103 surrounding the bearing chamber is provided in the wall of the bearing housing 1; the upper part of the cooling water ring cavity 103 is communicated with a water inlet, and the lower part of the cooling water ring cavity 103 is communicated with a water outlet.

In the present embodiment, a bearing chamber end cover 2 with a shaft hole is connected to an end surface of the bearing housing 1 on one side of the bearing chamber; the inner surface of the bearing chamber end cover 2 is provided with an inner sealing ring groove and an outer sealing ring groove which are used for clamping the end part of the cooling water ring cavity 103, so that the cooling water ring cavity 103 can be sealed through the sealing rings.

In the specific embodiment, the oil inlet channel is communicated with an upper semi-ring cavity between the bearing inner ring and the bearing outer ring. Oil enters the upper annular cavity and lubricates and cools the bearing balls.

In this embodiment, the oil collecting tank 102 includes a branch tank and a confluence tank; the branch flow grooves are distributed on the top of the bearing box 1 in a fan shape, and the confluence grooves are communicated with the oil inlet channel; the branching groove ends communicate with the converging grooves, respectively, so that the oil sump 102 communicates with the oil inlet passage. The oil slinger 3 is installed on stretching into the axle head in the oil chamber, and the oil slinger 4 can be along with the axle head rotation with the fluid in the oil storage chamber 101 get rid of to the oil sump 102 in, the oil sump 102 is through the tributary groove increase oil collection volume that is fan-shaped distribution to make fluid concentrate the cylinder manifold more fast.

Claims

1. A bearing housing, characterized by: a bearing chamber and an oil chamber are arranged in the bearing box, and an oil storage chamber positioned at the bottom of the bearing box and an oil collecting tank positioned at the top of the bearing box are arranged in the oil chamber; the oil collecting tank is communicated with the upper part of the bearing through an oil inlet channel in the bearing chamber, an oil passing channel is arranged in the bearing box to communicate the upper part of the bearing with the lower part of the bearing, and the lower part of the bearing is communicated with the oil storage cavity through an oil return channel; the oil return passage comprises an inner ring oil return passage and an outer ring oil return passage, the inner ring oil return passage is communicated with a lower semi-ring cavity between the inner ring and the outer ring of the bearing, and the outer ring oil return passage penetrates through the bottom wall of the bearing chamber; the bottom surface of oil storage chamber includes the water conservancy diversion inclined plane, outer loop oil return passageway with the upper end on water conservancy diversion inclined plane links to each other for outer loop oil return expert's play fluid can be followed water conservancy diversion inclined plane water conservancy diversion to the low-lying department in oil storage chamber, thereby can form the convection current with the upper oil in the oil storage chamber.

2. The bearing housing of claim 1, wherein: a cooling water ring cavity surrounding the bearing chamber is arranged in the wall of the bearing box; the upper part of the cooling water ring cavity is communicated with a water inlet, and the lower part of the cooling water ring cavity is communicated with a water outlet.

3. A bearing housing according to claim 2, wherein: the end surface of the bearing box, which is positioned at one side of the bearing chamber, is connected with a bearing chamber end cover with a shaft hole; the inner surface of the bearing chamber end cover is provided with an inner sealing ring groove and an outer sealing ring groove which are used for clamping the end part of the cooling water ring cavity, so that the cooling water ring cavity can be sealed through the sealing rings.

4. The bearing housing of claim 1, wherein: the oil inlet channel is communicated with an upper semi-ring cavity between the bearing inner ring and the bearing outer ring.

5. The bearing housing according to claim 1 or 4, characterized in that: the oil collecting groove comprises a branch groove and a confluence groove; the branch flow grooves are distributed on the top of the bearing box in a fan shape, and the confluence groove is communicated with the oil inlet channel; the end parts of the branch flow grooves are communicated with the confluence groove respectively, so that the oil collecting groove is communicated with the oil inlet channel.