CN-117212339-B - Side plug type rolling bearing

CN117212339BCN 117212339 BCN117212339 BCN 117212339BCN-117212339-B

Abstract

The invention discloses a side plug type rolling bearing which comprises an outer ring, an inner ring, a plurality of rolling bodies, a side plug, a first sealing part and a second sealing part, wherein the outer ring and the inner ring are coaxial, a containing chamber is formed between the outer ring and the inner ring, the outer ring radially penetrates through a channel to be communicated with the containing chamber, the outer ring forms a side wall surrounding channel, each rolling body enters the containing chamber through the channel, a plunger is axially arranged in the channel, the first sealing part is arranged on the channel and is tightly adhered to the side plug and the side wall, the first sealing part is formed by solidifying an adhesive liquid material with high fluidity and low solidification shrinkage rate, so that lubricating substances are prevented from leaking out through the channel, the second sealing part is arranged on the channel and is tightly adhered to the first sealing part and the side wall, and the second sealing part supports the first sealing part.

Inventors

LAI YUJUN
CHEN LI

Assignees

银泰科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20220602

Claims (6)

1. A side plug type rolling bearing, characterized by comprising: the outer ring forms a channel along the radial direction, one end of the channel extends to the annular outer side of the outer ring, the outer ring forms an annular side wall, and the side wall surrounds the channel; The inner ring and the outer ring are coaxial, a circular chamber is formed between the outer ring and the inner ring, the channel is communicated with the chamber, and lubricating substances are arranged in the chamber; A plurality of rolling bodies are annularly arranged in the accommodating chamber, the outer ring and the inner ring are kept coaxial, and each rolling body is matched with the outer ring and the inner ring; the side plug is axially arranged in the channel, the side plug is provided with a first end and a second end, the first end and the second end are opposite along the axial direction of the side plug, the first end is adjacent to the accommodating chamber, the second end is adjacent to the annular outer side of the outer ring, a first annular surface is formed on the radial circumferential side of the side plug, the first annular surface is positioned between the first end and the second end, and the first annular surface and the side wall are closely adjacent along the radial direction of the side plug; The first blocking part is arranged in the channel and is formed by solidifying a liquid material with high fluidity and low solidification shrinkage rate, and the second end and the side wall of the first blocking part are tightly adhered to each other to prevent lubricating substances from leaking out through the channel; the second sealing part is arranged in the channel, is formed by hardening a gelatinous high polymer material, is tightly adhered to the first sealing part and the side wall, is positioned between the second end and the second sealing part, and forms support for the first sealing part; The second end is sunk into the channel, the channel accommodates the first blocking part and the second blocking part, the first blocking part is provided with an annular second annular ring surface, the second annular surface surrounds the radial periphery of the first blocking part, the second annular surface is tightly adhered to the side wall, the second blocking part is provided with an annular third annular surface, the third annular surface surrounds the radial periphery of the second blocking part, and the third annular surface is tightly adhered to the side wall.
2. The rolling bearing of claim 1, wherein the side plug forms a conical surface adjacent to the second end and the first annular surface, the conical surface having an outer diameter increasing from the second end in a direction toward the first annular surface, and the first blocking portion being tightly adhered to the conical surface.
3. A side plug type rolling bearing according to claim 1, wherein the second end is convex in the annular outer direction of the outer ring to form an arc shape or a ball arc shape.
4. A side plug type rolling bearing, characterized by comprising: an inner ring, wherein the inner ring forms a channel along the radial direction, one end of the channel extends to the annular inner side of the inner ring, the inner ring forms an annular side wall, and the side wall surrounds the channel; the outer ring surrounds the annular outer side of the inner ring, the inner ring and the outer ring are coaxial, an annular chamber is formed between the outer ring and the inner ring, the channel is communicated with the chamber, and lubricating substances are arranged in the chamber; A plurality of rolling bodies are annularly arranged in the accommodating chamber, the outer ring and the inner ring are kept coaxial, and each rolling body is matched with the outer ring and the inner ring; The side plug is axially arranged in the channel, the side plug is provided with a first end and a second end, the first end and the second end are opposite along the axial direction of the side plug, the first end is adjacent to the accommodating chamber, the second end is adjacent to the annular inner side of the inner ring, a first annular surface is formed on the radial circumferential side of the side plug, the first annular surface is positioned between the first end and the second end, and the first annular surface and the side wall are closely adjacent along the radial direction of the side plug; The first blocking part is arranged in the channel and is formed by solidifying a liquid material with high fluidity and low solidification shrinkage rate, and the second end and the side wall of the first blocking part are tightly adhered to each other to prevent lubricating substances from leaking out through the channel; the second sealing part is arranged in the channel, is formed by hardening a gelatinous high polymer material, is tightly adhered to the first sealing part and the side wall, is positioned between the second end and the second sealing part, and forms support for the first sealing part; The second end is sunk into the channel, the channel accommodates the first blocking part and the second blocking part, the first blocking part is provided with an annular second annular ring surface, the second annular surface surrounds the radial periphery of the first blocking part, the second annular surface is tightly adhered to the side wall, the second blocking part is provided with an annular third annular surface, the third annular surface surrounds the radial periphery of the second blocking part, and the third annular surface is tightly adhered to the side wall.
5. The rolling bearing of claim 4 wherein the side plug forms a conical surface adjacent to the second end and the first annular surface, the conical surface having an outer diameter increasing from the second end toward the first annular surface, and the first blocking portion being tightly adhered to the conical surface.
6. The rolling bearing of claim 4, wherein the second end is convex toward the annular inner side of the inner ring to form an arc shape or a spherical arc shape.

Description

Side plug type rolling bearing Technical Field The invention relates to a rolling bearing, in particular to a side plug type rolling bearing. Background As shown in fig. 1, the side plug type rolling bearing comprises an outer ring 11, an inner ring 12, a plurality of rolling elements 13 and a side plug 14, wherein the outer ring 11 surrounds the annular outer side of the inner ring 12, an annular chamber 15 is formed between the outer ring 11 and the inner ring 12, each rolling element 13 is annularly arranged in the chamber 15, a lubricating substance (not shown) is arranged in the chamber 15, each rolling element 13 maintains the outer ring 11 and the inner ring 12 to form a coaxial structure, the outer ring 11 and the inner ring 12 are coaxially rotated relatively, the lubricating substance lubricates each adjacent rolling element 13, the outer ring 11 and the inner ring 12, and when the outer ring 11 and the inner ring 12 are rotated relatively, the lubricating substance reduces the relative friction of the outer ring 11, the inner ring 12 and the rolling elements 13. The outer ring 11 is radially penetrated with a channel 16 communicated with the accommodating chamber 15, each rolling body 13 sequentially enters the accommodating chamber 15 from the radial outer side of the outer ring 11 through the channel 16, the side plug 14 is inserted into the channel 16 from the radial outer side of the outer ring 11, so that the rolling body 13 cannot leave the accommodating chamber 15 through the channel 16, the side plug 14 is sleeved with a leakage stopping ring 17 made of elastic material, and the leakage stopping ring 17 seals a narrow gap between the inner wall of the channel 16 and the side plug 14 to prevent lubricating substances from leaking outwards through the channel 16. In practical experience, it has been found that the side plug type rolling bearing still has the following problems and disadvantages that in order to effectively prevent the leakage of the lubricating substance through the channel 16 by the leakage stopping ring 17, the leakage stopping ring 17 is pressed by the side plug 14 to elastically deform, and the leakage stopping ring 17 is in an elastically deformed state for a long time and contacts the lubricating substance, so that the leakage stopping ring 17 is easily changed in material quality, and the effect of preventing the leakage of the lubricating substance is lost. Disclosure of Invention The invention mainly aims to provide a side plug type rolling bearing. In order to achieve the above purpose, the invention adopts the following technical scheme: A side plug type rolling bearing comprising: the outer ring forms a channel along the radial direction, one end of the channel extends to the annular outer side of the outer ring, the outer ring forms an annular side wall, and the side wall surrounds the channel; The inner ring and the outer ring are coaxial, a circular chamber is formed between the outer ring and the inner ring, the channel is communicated with the chamber, and lubricating substances are arranged in the chamber; A plurality of rolling bodies are annularly arranged in the accommodating chamber, the outer ring and the inner ring are kept coaxial, each rolling body is matched with the outer ring and the inner ring, and the outer ring and the inner ring coaxially and relatively rotate; the side plug is axially arranged in the channel, the side plug is provided with a first end and a second end, the first end and the second end are opposite along the axial direction of the side plug, the first end is adjacent to the accommodating chamber, the second end is adjacent to the annular outer side of the outer ring, a first annular surface is formed on the radial circumferential side of the side plug, the first annular surface is positioned between the first end and the second end, and the first annular surface and the side wall are closely adjacent along the radial direction of the side plug; The first blocking part is arranged in the channel and is formed by solidifying an adhesive liquid material with high fluidity and low solidification shrinkage rate, and the second end and the side wall are tightly adhered to the first blocking part, so that lubricating substances are prevented from leaking out through the channel; the second sealing part is arranged in the channel, is formed by hardening a gelatinous high polymer material, is tightly adhered to the first sealing part and the side wall, is positioned between the second end and the second sealing part, and forms support for the first sealing part; The second end is sunk into the channel, so that the channel accommodates the first blocking part and the second blocking part, the first blocking part is provided with an annular second annular surface, the second annular surface surrounds the radial periphery of the first blocking part, the second annular surface is tightly adhered to the side wall, the second blocking part