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Intelligent desolventizing and pressurizing device and method for self-lubricating joint bearing liner

A technology of joint bearings and pressurization devices, which is applied in the direction of bearing components, shafts and bearings, and material gluing, and can solve problems such as pressurization, inability to accurately control loading pressure, low bonding strength and uniformity of pads, etc.

Active Publication Date: 2021-09-14
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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  • Intelligent desolventizing and pressurizing device and method for self-lubricating joint bearing liner
  • Intelligent desolventizing and pressurizing device and method for self-lubricating joint bearing liner

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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PUM

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Abstract

The invention relates to an intelligent desolventizing and pressurizing device and method for a self-lubricating joint bearing liner. A treatment device comprises a self-adaptive heat flow sensing system, an intelligent control system and a pre-pressing system. A pretreatment method comprises the following steps that a bearing outer ring pasted with a liner is placed in an open environment with a certain temperature and wind speed, a solvent is volatilized from the liner and an adhesive into air, the real-time solvent volatilization degree is calculated according to the weight of the bearing outer ring pasted with the liner monitored in real time in the solvent volatilization process, the temperature and the air speed are adjusted in real time according to the volatilization degree of the solvent, so that the solvent in the liner and the adhesive is fully volatilized, and after the solvent is completely volatilized, pressure is applied to the liner to enable the liner to expand in the radial direction; and the peel strength between the liner and the bearing outer ring is 1.61-1.95 N / mm, and the standard deviation of the peel strength between the liner and the bearing outer ring is 1-3. The desolventizing time is greatly shortened, and the bonding efficiency and the bonding performance of the liner are improved.

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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IPC IPC(8): F16B11/00F16C43/00
CPCF16B11/006F16C43/00
Inventor 俞鸣明王莎任慕苏
Owner SHANGHAI UNIV