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Self-lubricating joint bearing liner intelligent desolvation and pressurization device and method

A technology of joint bearings and pressurization devices, which is applied in the direction of shafts and bearings, bearing components, connecting components, etc., can solve the problem of low bonding strength and uniformity of gaskets, inability to accurately control the removal rate, and inability to accurately control the loading pressure, etc. problem, to achieve the effect of solving the uncontrollable loading pressure, improving the bonding efficiency and bonding performance, and shortening the desolventization time

Active Publication Date: 2022-03-04
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Self-lubricating joint bearing is a kind of joint bearing, which is composed of an outer ring with an inner spherical surface, a lubricating layer (fabric liner) and an inner ring with an outer spherical surface. The self-lubricating fabric liner is mainly glued by hand. It is bonded to the inner side of the outer ring of the bearing. For the adhesive and the solvent in the liner, the existing process adopts room temperature drying and oven drying for desolventization. The removal rate cannot be precisely controlled and the dispersion is large; The pressurization method mainly adopts the thermal expansion of the mandrel to load. After the self-lubricating joint bearing liner is pasted on the inner surface of the bearing outer ring, the liner is generally loaded with a PTFE mandrel. The PTFE mandrel expands when heated, so that The liner is pressed and pasted on the inner surface of the bearing outer ring, but this method has the following defects: first, the PTFE mandrel must be heated to expand, and the liner cannot be pressurized at room temperature; Stress, mismatch between the mandrel and the inner surface of the bearing outer ring make the pressure generated by the mandrel heat unstable, and the loading pressure cannot be accurately controlled, resulting in low bonding strength and uniformity of the gasket
Therefore, it is necessary to intelligently control the release rate and loading pressure of the glue and liner on the outer ring, but the current research on this aspect tends to be blank, and there are no published patents and documents related to this field

Method used

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  • Self-lubricating joint bearing liner intelligent desolvation and pressurization device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] Glue the outer ring of the bearing and paste the liner and fix it on the sample holder. Set the initial temperature (T 0 =40℃) and initial wind speed (V 0 =3m / s), during the precipitation process, the programmable controller uses the built-in temperature and wind speed real-time control program to intelligently adjust the wind speed and temperature according to the data fed back by the weight sensor in real time. After the precipitation is completed, turn on the lifting controller, After adjusting the electric lifting rod to align the axial center of the air bag with the center of the outer ring of the bearing, move the air bag to the center of the outer ring of the bearing, then cover the air bag and the outer ring of the bearing with the protective cavity, lock the lock, and Set the air pressure value in the controller to 1.5MPa and the pressurization time to 1min, turn on the air compressor to inflate the air bag, do not release the pressure after the inflated loadin...

Embodiment 2

[0076] Glue the outer ring of the bearing and paste the liner and fix it on the sample holder. Set the initial temperature (T 0 =40℃) and initial wind speed (V 0 =3m / s), during the precipitation process, the programmable controller uses the built-in temperature and wind speed real-time control program to intelligently adjust the wind speed and temperature according to the data fed back by the weight sensor in real time. After the precipitation is completed, turn on the lifting controller, After adjusting the electric lifting rod to align the axial center of the air bag with the center of the outer ring of the bearing, move the air bag to the center of the outer ring of the bearing, then cover the air bag and the outer ring of the bearing with the protective cavity, lock the lock, and Set the air pressure value in the controller to 1MPa and the pressurization time to 2min, turn on the air compressor to inflate the air bag, do not release the pressure after the inflation is comp...

Embodiment 3

[0078] Glue the outer ring of the bearing and paste the liner and fix it on the sample holder. Set the initial temperature (T 0 =40℃) and initial wind speed (V 0 =3m / s), during the precipitation process, the programmable controller uses the built-in temperature and wind speed real-time control program to intelligently adjust the wind speed and temperature according to the data fed back by the weight sensor in real time. After the precipitation is completed, turn on the lifting controller, After adjusting the electric lifting rod to align the axial center of the air bag with the center of the outer ring of the bearing, move the air bag to the center of the outer ring of the bearing, then cover the air bag and the outer ring of the bearing with the protective cavity, lock the lock, and Set the air pressure value in the controller to 0.6MPa and the pressurization time for 3 minutes, turn on the air compressor to inflate the air bag, and do not release the pressure after the infla...

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Abstract

The invention relates to an intelligent desolvation and pressurization device and method for a self-lubricating joint bearing liner. The processing device includes an adaptive heat flow sensing system, an intelligent control system and a preloading system; the pretreatment method is: the bearing with the liner pasted The outer ring is placed in an open environment with a certain temperature and wind speed, so that the solvent volatilizes from the gasket and adhesive into the air. During the solvent volatilization process, the weight of the outer ring of the bearing with the gasket pasted is calculated according to the real-time monitoring. Real-time solvent volatilization degree, and then adjust the temperature and wind speed in real time according to the solvent volatilization degree, so that the solvent in the gasket and adhesive can be fully volatilized. After the solvent volatilizes completely, apply pressure to the gasket to make it radially expand; The peeling strength of the ring is 1.61-1.95 N / mm, and the standard deviation of the peeling force between the liner and the outer ring of the bearing is 1-3. The invention greatly shortens the solvent removal time and improves the bonding efficiency and bonding performance of the liner.

Description

technical field [0001] The invention belongs to the technical field of intelligent desolventization and pressurization of bearing pads, and relates to an intelligent desolventization and pressurization device and method for self-lubricating joint bearing pads. Background technique [0002] Self-lubricating joint bearing is a kind of joint bearing, which is composed of an outer ring with an inner spherical surface, a lubricating layer (fabric liner) and an inner ring with an outer spherical surface. The self-lubricating fabric liner is mainly glued by hand. It is bonded to the inner side of the outer ring of the bearing. For the adhesive and the solvent in the liner, the existing process adopts room temperature drying and oven drying for desolventization. The removal rate cannot be precisely controlled and the dispersion is large; The pressurization method mainly adopts the thermal expansion of the mandrel to load. After the self-lubricating joint bearing liner is pasted on t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B11/00F16C43/00
CPCF16B11/006F16C43/00
Inventor 俞鸣明王莎任慕苏
Owner SHANGHAI UNIV