CN201311350Y

CN201311350Y - High-speed radial reciprocating-oscillation tester

Info

Publication number: CN201311350Y
Application number: CNU200820058975XU
Authority: CN
Inventors: 林俊伟
Original assignee: SHANGHAI CITY BEARING TECHNOLOGY RESEARCH INST
Current assignee: SHANGHAI CITY BEARING TECHNOLOGY RESEARCH INST
Priority date: 2008-05-26
Filing date: 2008-05-26
Publication date: 2009-09-16
Anticipated expiration: 2018-05-26

Abstract

The utility model provides a high-speed radial reciprocating-oscillation tester which relates to the technical field of bearing test check equipment. The high-speed radial reciprocating-oscillation tester comprises a test table, weights, a sensor, a clamping mechanism, a spline, an eccentric wheel, a speed-change motor and a sensor. A supporter is arranged on the test table and provided with a pressurizing lever, and the normal connection of the eccentric rotary-rod mechanism is used for generating high-speed radial reciprocating oscillating power to be used for testing the oscillating frequency and the oscillating angle of a tested component. The utility model has compact structure, high stand rigidity and stable and reliable loading process, and effectively improves the test testing precision of the technical indexes, such as the service life of an automatic-lubricating joint bearing, and the like.

Description

High speed is the testing machine of reciprocally swinging radially

Technical field

The utility model relates to the bearing test checkout equipment, and being specifically related to a kind of self-lubricating knuckle bearing is having the high speed testing machine of reciprocally swinging radially that carries high speed swinging state following serviceable life.

Background technology

At present, in much as Important Project equipment such as aircraft, railway speed increase, wind-force, the multiple self-lubricating knuckle bearing that applies under the high speed swinging state is arranged, the standard of American army mark MIL-B81819 standard and MIL-81820 as requested, number of oscillations is 1000～1500 times/minute, in 800 hours life-spans, temperature, friction factor, loading load etc. all have strict requirement.Must be by a series of relevant tests as the swing wear test, load test or the like, the bearing that only meets American army mark MIL-81819 and MIL-81820 standard can be by checking and accepting.And for example, use the self-lubricating knuckle bearing in some specific occasion, therefore its high-frequency small angle oscillation must have believable testing equipment to support to extremely important influence is arranged its serviceable life.China has developed a kind of high speed swinging abrasion tester voluntarily according to the interrelated data record; its hunting frequency can only reach 800 times/minute; and lack cooling system; can not turn round continuously; per half an hour, need be shut down and just can be restarted in 10 minutes; do not meet the standard of American army mark MIL-81819 and MIL-81820, can't examine for the index of aging of self-lubricating knuckle bearing.Therefore, solve self-lubricating knuckle bearing have carry under the high speed swinging state serviceable life technical indicator the test equipment thing at the eyebrows and eyelashes.

The utility model content

The utility model purpose is to test self-lubricating knuckle bearing the serviceable life of carrying under the high speed swinging state, the radially testing machine of reciprocally swinging of a kind of high speed is proposed, this testing machine can set in advance required hunting frequency and pendulum angle when test, load change of load with counterweight, measure friction temperature, coefficient of friction, rub-moment and the serviceable life of tested bearing automatically.This testing machine is made up of test board [1], counterweight suspension rod [2], counterweight [3], pressurization lever [4], pressure transducer [5], clamping mechanism [6], splined shaft [7], spline housing [8], spindle drum [9], rod end self-aligning bearing [10], eccentric wheel [11], eccentric distant bar [12], change speed motor [13], displacement transducer [14], bearing [15], bracing frame [16], and described test board [1] is gone up bracing frame [16], bearing [15], spindle drum [9] are installed; Pressurization lever [4] is installed above the described bracing frame [16], and wherein an end is connected with counterweight suspension rod [2], and the other end is connected with pressure transducer [5]; Spline housing [8] is installed above the described bearing [15] is connected with splined shaft [7], the other end is connected with eccentric distant linkage; Eccentric distant linkage is made up of rod end self-aligning bearing [10], eccentric wheel [11], eccentric distant bar [12], adopts usual manner to connect.

The utility model is loaded by the actual bearer of the real-time monitoring bearing of pressure transducer, displacement transducer or the like and is shown the bearing wear amount in real time; Hunting frequency, the pendulum angle of testpieces can be set arbitrarily.Compact conformation, the rigidity of frame height, loading procedure is reliable and stable, controlled the heating phenomenon of process of the test centre bearer effectively, and can monitor in real time process of the test, data processing, simple to operation, effectively improve the results precision of technical indicators such as self-lubricating knuckle bearing serviceable life.

Description of drawings

Fig. 1 is the radially testing machine structure synoptic diagram of reciprocally swinging of high speed

Fig. 2 is the radially scheme of installation of the testing machine measured piece of reciprocally swinging of high speed

Embodiment

Below in conjunction with accompanying drawing the utility model is described in further detail:

Be testing machine structure of the present invention as shown in Figure 1, be made up of test board [1], counterweight suspension rod [2], counterweight [3], pressurization lever [4], pressure transducer [5], clamping mechanism [6], splined shaft [7], spline housing [8], spindle drum [9], rod end self-aligning bearing [10], eccentric wheel [11], eccentric remote sensing [12], change speed motor [13], displacement transducer [14], bearing [15], bracing frame [16], described test board [1] is gone up bracing frame [16], bearing [15], spindle drum [9] is installed; Bracing frame [16] supports two pressurizations in front and back levers [4] respectively, thereby has changed the direction of power, and pressurization lever [4] is two joint levers, the all active connection of each tie point, pressurization lever [4] carries out counterweight with counterweight [3], and an end is connected with counterweight suspension rod [2], and the other end is connected with pressure transducer [5]; Pressure transducer is used for transmitting pressure signal, and transfers the pressure to clamping mechanism [6], acts on measured bearing, shows pressure data by pressure display unit.Above-mentioned clamping mechanism [6] contacts with pressure transducer [5], and measured bearing [17] and fixing by measured piece [17] and splined shaft [7] is installed at the center.Above-mentioned splined shaft [7] one ends are fixed on the spindle drum [9], and the other end is installed on the bearing [15] by spline housing [8], are driven by eccentric wobble crank mechanism subsequently and move.Eccentric wobble crank mechanism is made up of eccentric wheel [11], rod end self-aligning bearing [10] and eccentric rocking bar [12], and eccentric wheel is installed on the change speed motor [13], and eccentric rocking bar [12] is by bearing 15], spline housing [8] is connected transmitting movement with splined shaft [7].Test board [1] back side is equipped with displacement transducer [14] and contacts with measured piece [17] by the metal rod tube, gathers displacement data.Load, displacement, frequency etc. show by instrument.

Be the scheme of installation of this religious name measured piece as shown in Figure 2, form by measured piece [17], clamping mechanism [6], splined shaft [7], spline housing [8], spindle drum [9], axle sleeve [18], location round pin [19], gland nut [20], it is upward fixing by gland nut [20] at first measured piece [17] to be installed in splined shaft [7] before the test, embeds in the clamping mechanism [6]; Clamping mechanism [6] is positioned at below the pressure transducer bottom groove and contacts with pressurization lever [4] central vertical; Mounted splined shaft [7] is inserted in the spline housing [8], fixing by location round pin [19].

Adjust displacement transducer [14] position during test, make it to contact with clamping mechanism [6], manual adjustments is waved angle, loads onto depth gage on suction iron dial plate, and rotary electric machine one encloses, and finds two extreme positions of eccentric rocking bar [12], calculates its angle, demarcates then.By adjusting the extreme position of eccentric rocking bar [12], can change required angle of oscillation arbitrarily, finish the experimental test of technical indicators such as self-lubricating knuckle bearing serviceable life.

Claims

1, the testing machine of reciprocally swinging radially at a high speed, it is characterized in that, this testing machine is made up of test board [1], counterweight suspension rod [2], counterweight [3], pressurization lever [4], pressure transducer [5], clamping mechanism [6], splined shaft [7], spline housing [8], spindle drum [9], rod end self-aligning bearing [10], eccentric wheel [11], eccentric distant bar [12], change speed motor [13], displacement transducer [14], bearing [15], bracing frame [16], and described test board [1] is gone up bracing frame [16], bearing [15], spindle drum [9] are installed; Pressurization lever [4] is installed above the bracing frame [16], and wherein an end is connected with counterweight suspension rod [2], and the other end is connected with pressure transducer [5].

2, the high speed according to claim 1 testing machine of reciprocally swinging radially is characterized in that; Spline housing [8] is installed above the described bearing [15] is connected with splined shaft [7], the other end is connected with eccentric distant linkage; Eccentric distant linkage is made up of rod end self-aligning bearing [10], eccentric wheel [11], eccentric distant bar [12], adopts usual manner to connect.

3, the high speed according to claim 1 and 2 testing machine of reciprocally swinging radially is characterized in that; Splined shaft [7] is installed above the described spindle drum [9] directly to be connected with measured piece [17]; Measured piece [17] is fixing by clamping mechanism [6].

4, the high speed according to claim 1 and 2 testing machine of reciprocally swinging radially is characterized in that; Installation position, described test board back side displacement sensor [14] directly contacts with measured piece [17].

5, the high speed according to claim 3 testing machine of reciprocally swinging radially is characterized in that; Installation position, described test board back side displacement sensor [14] directly contacts with measured piece [17].