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Variable-tilt-angle stepless loading type biaxial rotary oscillation ball-block friction-abrasion test machine

A friction and wear test, stepless loading technology, applied in the direction of testing wear resistance, measuring devices, instruments, etc., can solve the problem of single swing range of the testing machine, and achieve the effect of compact structure, low manufacturing cost, simple and compact

Inactive Publication Date: 2012-09-12
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The friction pairs and joint bearings in the former two friction and wear testing machines have different motion modes, while the latter testing machine has a single swing range and can only be manually loaded in stages

Method used

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  • Variable-tilt-angle stepless loading type biaxial rotary oscillation ball-block friction-abrasion test machine
  • Variable-tilt-angle stepless loading type biaxial rotary oscillation ball-block friction-abrasion test machine
  • Variable-tilt-angle stepless loading type biaxial rotary oscillation ball-block friction-abrasion test machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: Referring to the accompanying drawings, this ball-block friction and wear testing machine with variable swing angle stepless loading type biaxial rotation and swing includes a bottom frame (28), a frame, a loading part (I), a biaxial Rotating swinging part (II) and driving part (III), characterized by:

[0019] 1) The loading part (I) is a stepless loading mechanism, installed on the upper part of the frame, driven by a servo motor (1) and a ball screw (7), and transmits the loading force to a buffer spring (10) The sample block holder (17) realizes the stepless loading of the sample block to the dual sample ball;

[0020] 2) The driving part (III) drives a crank (24) with a sliding groove and a rocker (25) to move through an asynchronous motor (23), and the rocker (25) is connected with the biaxial rotary swing mechanism ( II) one end short shaft of a belt shaft swing frame (29) is connected;

[0021] 3) The biaxially rotating swinging part (II) is fixe...

Embodiment 2

[0022] Embodiment 2: This embodiment is basically the same as Embodiment 1. The special feature is that the loading part (1) is installed on the loading support plate (5) and fixed on the left and right support plates (15) through bolt connection. The loading part The power of (I) is provided by the servo motor (1), and the connecting block (8) installed on the guide rail slider is driven by the lower coupling (4) and the ball screw (7), and the loading force is loaded by the buffer spring (10 ) to the sample block holder (17) below; the servo motor (1) in the loading part (I) is fixed on the motor support plate (3) through the mounting block (2), and through the coupling (4) Connected with the ball screw (7), the ball screw nut (6) is connected with the guide rail slider (9) through the connecting block (8), so the ball screw nut (6) can move along the linear guide rail (11) performs linear motion, and transmits the loading force to the sample block holder (17) through the bu...

Embodiment 3

[0023] Embodiment 3: This embodiment is basically the same as Embodiment 1, and the special feature is that the two-stage bevel gear transmission mechanism in the biaxially rotating oscillating part (II) is: the gear shaft (21) is simply supported by the bearing on the In the center of the bottom of the belt shaft swing frame (29), its center line is aligned with the center of the dual sample ball (19), and the upper bevel gear (20) and the lower bevel gear (22) are coaxially fixed on the gear shaft (21) ), fixedly install the fixed bevel gear (27) on the machine base (28) through the gear fixing plate (26) to mesh with the lower bevel gear (22), and fix a The vertical bevel gear (31) meshes with the upper bevel gear (20). Balance weights (16) with sliding grooves are installed on both sides of the swinging frame in the biaxially rotating swinging part (II), and the balancing weights (16) with sliding grooves are fixed to the swinging frame with shafts (29) by screws , so tha...

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Abstract

The invention relates to a variable-tilt-angle stepless loading type biaxial rotary oscillation ball-block friction-abrasion test machine, comprising a loading component, a biaxial rotary oscillation component and a driving component, wherein the loading component is a stepless loading type loading mechanism, is driven by a servo motor and a ball screw, and transmits a loading force to a clamping piece of a sample block through a buffering spring, so that the sample block supplies a load to a coupling sample ball, and stepless loading is realized; the driving component drives a crank with a sliding groove and a rocker to move through an asynchronous motor; the rocker is linked with a short shaft at one end of the biaxial rotary oscillation component, which is provided with an oscillation framework with a shaft; the biaxial rotary oscillation component is fixedly connected on a bottom engine base through a left bearing plate and a right bearing plate of a rack; and a sample ball shaft in the oscillation framework with the shaft does biaxial rotary oscillation with adjustable tilt angle and frequency with two shafts, which are vertical with each other, through a two-step conical gear transmission mechanism below the sample ball shaft. The variable-tilt-angle stepless loading type biaxial rotary oscillation ball-block friction-abrasion test machine provided by the invention has the advantages of adjustable tile angle and frequency, accurate and controllable loading, reliable transmission and stable movement, and can entirely simulate friction and abrasion of a ball-three quarter block biaxial rotary oscillation working condition.

Description

technical field [0001] The invention relates to a ball-block friction and wear testing machine with variable swing angle stepless loading and biaxial rotation and swing. The device can simulate the friction and wear test under the working condition of point contact biaxial rotation and swing. Background technique [0002] Self-lubricating joint bearing is a special form of joint bearing that does not need to be supplemented with lubricant. It is widely used in various mechanical equipment such as aerospace, mining metallurgy, printing, textile, transportation, medicine, electric power, etc., especially where high load, In mechanisms with low-speed swing and self-positioning capabilities. The main form of failure is wear failure. Wear increases the internal clearance of the bearing, which causes the vibration and noise of the moving parts supported by the bearing to increase, which makes the operating state of the machine worse, resulting in failure to work normally, resultin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56G01N3/02
Inventor 沈雪瑾刘云飞黄夏婧
Owner SHANGHAI UNIV
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