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Device and method for quickly manufacturing babbitt metal bearing bush

A technology of babbitt alloy and bearing pads, which is applied in the field of rapid manufacturing of babbitt alloy bearing pads, can solve problems such as complex bearing pad manufacturing processes, and achieve the effects of facilitating quality control, reducing production processes, and improving efficiency

Active Publication Date: 2020-11-17
ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first purpose of the present invention is to provide equipment for rapidly manufacturing babbitt alloy bearing bushes, so as to solve technical problems such as complicated bearing bush manufacturing processes in the prior art

Method used

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  • Device and method for quickly manufacturing babbitt metal bearing bush
  • Device and method for quickly manufacturing babbitt metal bearing bush

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] This embodiment provides a method for rapidly manufacturing a babbitt alloy bearing bush, including the following steps:

[0083] (1) Pretreat the bearing bush blank to get the bearing bush

[0084] a. Processing the commercially available bearing blanks of standard size, including the upper bearing 1 and the lower bearing 2, by lathes, milling machines, etc., to remove burrs, flashes, etc.;

[0085] b. Put the rough bearing bush obtained in step a into a heating furnace and heat it to 400°C, then heat it to 700°C and keep it warm for 6 hours; take the bearing bush out of the heating furnace with iron clips, and let it cool naturally to room temperature;

[0086] c. Use a grinder to grind the inside of the bearing bush obtained in step b to remove the oxide layer. After grinding, clean the bearing bush with a saturated zinc chloride solution, that is, apply the saturated zinc chloride solution to the inside of the bearing bush;

[0087] d. Preheat the bearing bush blank ...

Embodiment 2

[0093] The present embodiment refers to the preparation method of Example 1, the difference is only in:

[0094] In step (2), after assembly, a pressure of 2000N is applied between the first electrode and the second electrode and a direct current of 380V and 10A is passed;

[0095] The linear speed of rotation of the bearing bush is 0.2 m / min.

Embodiment 3

[0097] The present embodiment refers to the preparation method of Example 1, the difference is only in:

[0098] In step (2), after assembly, a pressure of 3000N is applied between the first electrode and the second electrode and a direct current of 380V and 20A is passed;

[0099] The linear speed of rotation of the bearing bush is 0.5 m / min.

[0100] In the present invention, the Babbitt alloy ingot is directly placed in the inner cavity of the bearing bush through the second electrode, and there is a gap between the Babbitt alloy ingot and the inner surface of the bearing bush. According to Joule's law, the temperature at the gap rises first, making the casting The contact position between the ingot and the inner surface of the bearing bush is melted to the inner surface of the bearing bush, and welding is realized after cooling; there is no need to pre-melt Babbitt alloy ingots, etc., which reduces the large energy consumption caused by traditional overall heating and save...

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Abstract

The invention relates to the technical field of bearing bush manufacturing, in particular to a device and a method for quickly manufacturing a babbitt metal bearing bush. The device for quickly manufacturing the babbitt metal bearing bush comprises a rack, a rotating unit, an electrode unit and a power supply unit, The rotating unit comprises two rotating shafts arranged in the rack in parallel, each rotating shaft is sleeved with at least one wheel, and the wheels are tangent to the outer surface of the bearing bush and drive the bearing bush to rotate in the circumferential direction of thebearing bush; the electrode unit comprises a first electrode and a second electrode, and the first electrode and the second electrode are electrically connected through the power supply unit; and thefirst electrode is in contact with the arc surface of the outer surface of the bearing bush in an attached mode, and the second electrode is arranged in an inner cavity of the bearing bush and is opposite to the first electrode. By means of the device and the method for quickly manufacturing the babbitt metal bearing bush, according to the Joule law, the contact position of a cast ingot and the inner surface of the bearing bush is molten to the inner surface of the bearing bush; and along with circumferential rotation of the bearing bush, molten babbitt metal is solidified and welded to the inner surface of the bearing bush.

Description

technical field [0001] The invention relates to the technical field of bearing bush manufacturing, in particular to a device and method for rapidly manufacturing babbitt alloy bearing bushes. Background technique [0002] Babbitt alloys, including tin-based bearing alloys and lead-based bearing alloys, consist of two parts, a hard phase and a soft phase matrix. Due to the excellent performance of Babbitt alloy, it is widely used in the bearing bushes, bearings, bushings and bushings of large mechanical spindles in petrochemical, energy and electric power, metallurgy and mining, automobile and shipbuilding, military manufacturing and other fields. [0003] At present, most of the babbitt alloy bearing bushes of sliding bearings are manufactured by centrifugal casting, which needs to go through the following steps: blank manufacturing → tin enamel → babbitt alloy smelting → slag removal centrifugal casting → cooling → turning processing and other processes, the process is rela...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K3/00B23K3/08B23K37/053B23K1/00B23K1/20B23P15/00
CPCB23K3/00B23K3/08B23K37/0538B23K1/0008B23K1/20B23P15/00
Inventor 董宏伟钟素娟张雷张冠星王蒙于新泉刘付丽李云月
Owner ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
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