CN210033703U

CN210033703U - Wedge-shaped cylindrical tile bearing of impulse turbine

Info

Publication number: CN210033703U
Application number: CN201920759074.1U
Authority: CN
Inventors: 唐杰天; 兰静静; 肖文燕
Original assignee: Chongqing Water Turbine Works Co Ltd
Current assignee: Chongqing Water Turbine Works Co Ltd
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-02-07
Anticipated expiration: 2029-05-24

Abstract

The utility model discloses an impulse turbine wedge cylinder tile bearing, including main shaft (1) is gone up the cover and is equipped with axle bush (2) lower part is provided with oil storage mechanism axle bush upper portion is provided with cooling device, oil storage mechanism passes through pipeline mechanism and cooling device intercommunication. The utility model has the advantages of structural design is ingenious, use reliable, low cost, adopt it can improve the circulation effect of coolant oil for the heat exchange between axle bush and the coolant oil is better, has effectively reduced the axle bush temperature, has improved its bearing capacity.

Description

Wedge-shaped cylindrical tile bearing of impulse turbine

Technical Field

The utility model relates to an impulse turbine, especially an impulse turbine wedge cylinder tile bearing.

Background

At present, a bearing for a conventional impact type water turbine is a collar barrel type tile guide bearing; in the operation process of the unit, lubricating oil passes through the radial oil hole on the rotating spindle journal and is brought to the working surface of the bearing bush to form an oil film under the action of centrifugal force, and then the hot oil after lubricating the bearing bush flows out of the upper end of the bearing bush and is cooled by the cooler and then is brought to the working surface of the bearing. Although the method is feasible, the problems of low bearing capacity and high bearing bush temperature caused by poor heat exchange performance and poor oil circuit circulation still exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an impulse turbine wedge cylinder tile bearing that can effectively reduce axle bush temperature.

The utility model aims at realizing through such technical scheme, a impulse turbine wedge cylinder tile bearing, including the main shaft the cover is equipped with the axle bush on the main shaft the axle bush lower part is provided with oil storage mechanism axle bush upper portion is provided with cooling device, oil storage mechanism passes through pipeline mechanism and cooling device intercommunication.

The oil storage mechanism comprises a rotary oil box, a rotary oil box cover connected with a bearing bush is arranged at the upper end of the rotary oil box, a supporting ring is arranged at the lower end of the rotary oil box, and the supporting ring is connected with a clamping ring which is arranged on the main shaft and is positioned below the supporting ring; one end of the pipeline mechanism extends into the rotary oil box.

The pipeline mechanism comprises a pitot tube, an oil passing channel, an oil inlet pipe and an oil outlet pipe, the pitot tube is horizontally arranged in the rotary oil box, one end of the pitot tube is communicated with one end of the oil passing channel arranged in the bearing bush, and the other end of the oil passing channel is communicated with the cooling device through the oil inlet pipe; one end of the oil outlet pipe is communicated with the cooling device, and the other end of the oil outlet pipe is communicated with an oil groove formed in the bearing bush.

Further, the cooling device includes a cooler disposed above the rotary oil box, the cooler is disposed on the bearing body, and the bearing body is disposed horizontally and has one end connected to the bearing bush.

Since the technical scheme is used, the utility model has the advantages of structural design is ingenious, use reliable, low cost, adopt it can improve the circulation effect of cooling oil for the heat exchange between axle bush and the cooling oil is better, has effectively reduced the axle bush temperature, has improved its bearing capacity.

Drawings

The drawings of the utility model are as follows:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of fig. 1.

Detailed Description

The following detailed description of the embodiments of the present invention will be provided with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and any modifications or substitutions in the basic spirit of the embodiments will still fall within the scope of the present invention as claimed in the appended claims.

Example 1: as shown in fig. 1 and 2, a wedge-shaped cylindrical bush bearing for an impulse turbine comprises a main shaft 1, wherein a bearing bush 2 is sleeved on the main shaft 1, an oil storage mechanism is arranged at the lower part of the bearing bush 2, a cooling device is arranged at the upper part of the bearing bush, and the oil storage mechanism is communicated with the cooling device through a pipeline mechanism.

The oil storage mechanism comprises a rotary oil box 3, a rotary oil box cover 4 connected with a bearing bush 2 is arranged at the upper end of the rotary oil box 3, a supporting ring 5 is arranged at the lower end of the rotary oil box 3, and the supporting ring 5 is connected with a clamping ring 6 which is arranged on the main shaft 1 and is positioned below the supporting ring 5; one end of the pipeline mechanism extends into the rotary oil box 3.

The pipeline mechanism comprises a pitot tube 7, an oil passing channel 8, an oil inlet pipe 9 and an oil outlet pipe 10, the pitot tube 7 is horizontally arranged in the rotary oil box 3, one end of the pitot tube is communicated with one end of the oil passing channel 8 arranged in the bearing bush 2, and the other end of the oil passing channel 8 is communicated with the cooling device through the oil inlet pipe 9; one end of the oil outlet pipe 10 is communicated with the cooling device, and the other end is communicated with an oil groove 11 arranged on the bearing bush 2.

Further describing, the cooling device comprises a cooler 12, the cooler 12 is arranged above the rotary oil box 3, the cooler 12 is located on a bearing body 13, the bearing body 13 is horizontally arranged, and one end of the bearing body is connected with the bearing bush 2.

The utility model discloses a work like this: under the drive of the main shaft 1, hot oil rotates along with the rotary oil box 3, a speed pressure difference at an inlet of the pitot tube is formed under the action of centrifugal force, the hot oil is introduced into a cooler 12 through the pitot tube 7, an oil passing channel 8 and an oil inlet pipe 9, the hot oil enters an oil groove 11 through an oil outlet pipe 10 after being cooled by the cooler 12, enters the bearing bush 2 under the drive of the rotary main shaft 1 to form an oil film, lubricates and supports the main shaft 1, takes away heat generated between the main shaft 1 and the bearing bush 2 to form a heat exchange cycle, and then the hot oil after heat exchange enters the rotary oil box 3 to complete the oil cycle.

Claims

1. The utility model provides an impulse turbine wedge cylinder tile bearing, includes main shaft (1) is gone up the cover and is equipped with axle bush (2), characterized by: an oil storage mechanism is arranged at the lower part of the bearing bush (2), a cooling device is arranged at the upper part of the bearing bush, and the oil storage mechanism is communicated with the cooling device through a pipeline mechanism.

2. The impulse turbine wedge drum pad bearing of claim 1, wherein: the oil storage mechanism comprises a rotary oil box (3), a rotary oil box cover (4) connected with the bearing bush (2) is arranged at the upper end of the rotary oil box (3), a supporting ring (5) is arranged at the lower end of the rotary oil box (3), and the supporting ring (5) is connected with a clamping ring (6) which is arranged on the main shaft (1) and is positioned below the supporting ring (5); one end of the pipeline mechanism extends into the rotary oil box (3).

3. The impulse turbine wedge drum pad bearing as set forth in claim 2, wherein: the pipeline mechanism comprises a pitot tube (7), an oil passing channel (8), an oil inlet pipe (9) and an oil outlet pipe (10), the pitot tube (7) is horizontally arranged in the rotary oil box (3), one end of the pitot tube is communicated with one end of the oil passing channel (8) arranged in the bearing bush (2), and the other end of the oil passing channel (8) is communicated with the cooling device through the oil inlet pipe (9); one end of the oil outlet pipe (10) is communicated with the cooling device, and the other end of the oil outlet pipe is communicated with an oil groove (11) formed in the bearing bush (2).

4. The impulse turbine wedge drum pad bearing of claim 3, wherein: the cooling device comprises a cooler (12), wherein the cooler (12) is arranged above the rotary oil box (3), the cooler (12) is positioned on a bearing body (13), and the bearing body (13) is horizontally arranged and one end of the bearing body is connected with the bearing bush (2).