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

Air curtain sealed type bearing seat

A technology of sealed and bearing seats, which is applied to the sealing of bearing components, shafts and bearings, and engines. It can solve the problems of main shaft wear, increase the frictional resistance of the seal to the main shaft, and the failure of the dustproof function, so as to avoid accelerated wear and tear. , Reduce frictional resistance and reduce energy loss

Inactive Publication Date: 2015-09-16
ANHUI ANFENG FAN
View PDF11 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When this type of equipment is sealed with traditional sealing rings or dust-proof linoleum, when the dust accumulates a lot, the seals need to be replaced, otherwise the dust-proof function will fail, and the frictional resistance of the seals to the spindle will increase, causing the spindle to wear and tear

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
  • Air curtain sealed type bearing seat
  • Air curtain sealed type bearing seat
  • Air curtain sealed type bearing seat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] see figure 2 , 3 As shown, as a preferred embodiment of the present invention, the wind wheel 22 is located outside the sealed casing 10, and the edge of the through hole 11 is extended to the outside of the sealed casing 10 with a tubular protrusion 12, and the outside of the wind wheel 22 is The edge is provided with an annular protrusion 222 extending toward the shell wall of the sealed housing 10. The annular protrusion 222 is sleeved on the outside of the tubular protrusion 12 with a gap between the two. The annular protrusion 222 The inner ring surface of 222 is provided with fins 221 for generating airflow; the fins 221 are evenly spaced along the inner ring surface of the annular protrusion 222; the length direction of the fins 221 is parallel to the axial direction of the wind wheel 22, Or, the longitudinal direction of the fin plate 221 is arranged in a spiral shape along the inner ring surface of the annular convex portion 222 .

[0017] Further, the outer...

Embodiment 2

[0019] see Figure 4 , 6 As shown, as another embodiment of the present invention, the wind wheel 22 is located outside the sealed housing 10, and the outer wall of the sealed housing 10 is provided with a tubular protrusion 12 coaxial with the through hole 11, and the tubular protrusion 12 is The part 12 is set on the outside of the wind wheel 22, and there is a gap between the inner ring surface of the tubular convex part 12 and the outer ring surface of the wind wheel 22, and the outer ring surface of the wind wheel 22 is provided with fins for generating airflow 221, the fins 221 are evenly spaced along the outer ring surface of the wind wheel 22; Spiral set. In this embodiment, the air curtain is mainly generated between the tubular protrusion 12 and the outer ring surface of the wind wheel 22 .

Embodiment 3

[0021] see Figure 5 , 6 As shown, as another embodiment of the present invention, the outer opening of the through hole 11 is provided with a counterbore portion, the wind wheel 22 is located in the counterbore portion, and the outer ring surface of the wind wheel 22 and the counterbore portion There are gaps between the inner ring surface of the wind wheel 22 and the step surface of the counterbore part. The outer ring surface of the wind wheel 22 is provided with a fin plate 221 for generating airflow. The plates 221 are evenly spaced along the outer ring surface of the wind rotor 22 ; the length direction of the fins 221 is parallel to the axial direction of the wind rotor 22 , or the length direction of the fins 221 is spirally arranged along the outer ring surface of the wind rotor 22 . In this embodiment, the air curtain is mainly generated between the outer ring surface of the wind wheel 22 and the inner ring surface of the counterbore.

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 invention discloses an air curtain type dustproof seal structure used for sealing a bearing on a main shaft. The dustproof seal structure comprises a bearing box, wherein the bearing box is provided with a right side plate in which a mounting hole is formed; the left end of the main shaft and the bearing are both located in the bearing box; a side cover body which is provided with a main shaft hole is arranged in the mounting hole; a bulged brim which extends to the right is arranged in the main shaft hole; a step is formed when the right end of the bulged brim extends outwards; an air curtain type dust shield is fixed on the left part of the main shaft; an inner hole is formed in the air curtain dust shield; the left part of the main shaft penetrates into the inner hole; a seal ring is embedded on the side wall of the inner hole; the air curtain dust shield is provided with a connection part which extends outwards; when the outer edge of the connection part extends to the left, and an air curtain cover is formed; at least two projections are distributed on the inner wall of the air curtain cover; the air curtain cover sleeves the external of the step; a gap is formed between the projections and the step. The air curtain type dustproof seal structure has the advantages that the main shaft can be well sealed; waterproof performance is better; frequency of maintenance is lower.

Description

technical field [0001] The invention belongs to a bearing sealing device of a transmission shaft, and in particular relates to an air curtain sealed bearing seat. Background technique [0002] The transmission shaft is generally installed through bearings. As a relatively precise transmission part, the bearing has strict requirements on working conditions. During use, dust particles should be avoided from entering the bearing to prevent wear and tear. In general mechanical equipment, since the bearing is inside a closed casing, its working environment is relatively simple, so some simple sealing measures can achieve the expected sealing effect, such as setting a sealing ring, adding lubricating oil, etc. However, for some special mechanical equipment, the difficulty of sealing the bearing is relatively high. Such as fans, powder conveyors and other equipment, the main shaft of such equipment is generally exposed to the working environment with high dust content. When this ...

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 Applications(China)
IPC IPC(8): F16J15/40
CPCF16C35/04F16J15/40
Inventor 叶团结
Owner ANHUI ANFENG FAN