Unlock instant, AI-driven research and patent intelligence for your innovation.

Plain bearing unit

A technology for sliding bearings and bearing devices, which is applied in the direction of sliding contact bearings, bearings, and bearings with rotating motion, etc., which can solve the problems that the bearings cannot be cooled effectively, and achieve the purpose of suppressing the rise of bearing temperature, reducing losses, and preventing strength decline. Effect

Inactive Publication Date: 2016-03-09
MITSUBISHI HITACHIPOWER SYST LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the structure of Patent Document 1, the lubricating oil supplied to the upper side of the bearing cannot be effectively used for cooling the bearing.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Plain bearing unit
  • Plain bearing unit
  • Plain bearing unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0045] Next, a second embodiment of the present invention will be described, and the same components as those in the first embodiment will be assigned the same reference numerals and their description will be omitted.

[0046] Figure 4 It is a longitudinal sectional view of the sliding bearing device of this embodiment. The difference between the present embodiment and the first embodiment is that the upstream end of the sliding surface 9a on the bearing lower side in the rotor rotation direction is cut into a concave shape along the bearing width direction, and a notch 7b is provided to form a gap with the rotor.

[0047] exist image 3 In the pressure distribution of the oil film, the pressure of the oil film is small at the position of 0° to 40° (in other words, 50° to 90° from the rotor load direction to the rotor reverse direction). Even if the notch 7b is provided on a part or the entire surface of this part along the bearing width direction, the influence on the oil ...

Embodiment 3

[0049] use Figure 5 ~ Figure 7 A third embodiment of the present invention will be described. In addition, in each figure, the same code|symbol is attached|subjected to the same component as 1st, 2nd embodiment, and description is abbreviate|omitted.

[0050] Figure 5 It is a longitudinal sectional view of the sliding bearing device of the third embodiment. In this embodiment, the structure of the upper bearing lining 2b is different from the first and second embodiments. In this embodiment, a groove 8 (notch portion) extending in the circumferential direction is provided on the surface of the upper bearing liner 2b.

[0051] Figure 6 yes Figure 5 The B-B line sectional view of the sliding bearing device. The rotor 1 is omitted from illustration. A sliding surface 9b is formed at the center in the bearing width direction of the inner peripheral surface of the upper bearing liner 2b, and grooves 8 extending in the circumferential direction are provided on both sides in...

Embodiment 4

[0055] Next, a fourth embodiment of the present invention will be described.

[0056] Figure 8 It is a longitudinal sectional view of the sliding bearing device of the fourth embodiment. In this embodiment, the oil passage 6a on the lower side is branched, and communicates with one or more oil passages 6b provided in the upper bearing liner 2b. The oil passage 6b extends in the circumferential direction along the upper sliding surface 9b, and communicates with the supply port 5b opened at the upstream end of the upper sliding surface 9b in the rotor rotation direction.

[0057] Figure 9 yes Figure 8 The C-C line sectional view of the sliding bearing device. The sliding surface 9b of the upper half is provided at the central part in the width direction of the bearing, and grooves 8 extending in the circumferential direction are provided at both ends thereof. When the groove 8 is provided, since the area of ​​the sliding surface 9b becomes smaller, the number of the oil ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides a sliding bearing device capable of reducing bearing loss and reducing the amount of lubricating oil. The sliding bearing device has a bearing liner that is divided into two parts up and down, and a back metal member provided on the outer peripheral side of the bearing liner. The lower bearing liner on the lower side of the bearing is divided into a cutout and a sliding surface. A part of the sliding surface is cut to form a gap with the rotor. The lower bearing liner on the lower side of the bearing has the function of allowing lubricating oil to flow from the boundary between the sliding surface and the cutout to the upstream side of the rotor rotation direction to the back side of the sliding surface. and a supply port for supplying lubricating oil flowing down the oil passage on the sliding surface from the upstream side end of the sliding surface, the back metal member on the lower side of the bearing has a boundary portion that communicates with the oil passage, and Lubricating oil supplied from the outside of the bearing is supplied to the oil supply passage of the oil passage, and all of the lubricating oil supplied to the inside of the bearing is supplied to the inside of the bearing through the oil passage.

Description

technical field [0001] The invention relates to plain bearing arrangements. Background technique [0002] As background art in this technical field, there is Japanese Unexamined Patent Application Publication No. 2009-222210 (Patent Document 1). This publication proposes a sliding bearing device that cools the bearing and reduces bearing loss by supplying lubricating oil to the bearing sliding surface after cooling the bearing by supplying lubricating oil to the outer periphery of the bearing on the load side. [0003] In addition, Patent Document 1's Figure 5 , Figure 6 A proposal has been proposed in which the bearing is formed by a bearing base metal on the outer peripheral side and a bearing liner on the inner peripheral side of a part different from the bearing base metal, and the bearing is installed in the range from the liner on the load side and the anti-load side to the range where the oil film pressure is generated. The sliding surface constitutes a partial be...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16C17/02F16C33/04F16C33/10
CPCF16C17/022F16C33/1045F16C2360/23
Inventor 铃木健太边见真井上知昭村田健一
Owner MITSUBISHI HITACHIPOWER SYST LTD