CN201653835U - Creep fatigue testing machine - Google Patents

Creep fatigue testing machine Download PDF

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Publication number
CN201653835U
CN201653835U CN2010201537105U CN201020153710U CN201653835U CN 201653835 U CN201653835 U CN 201653835U CN 2010201537105 U CN2010201537105 U CN 2010201537105U CN 201020153710 U CN201020153710 U CN 201020153710U CN 201653835 U CN201653835 U CN 201653835U
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China
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fixedly connected
ball screw
reducer
ball
digital controller
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Expired - Fee Related
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CN2010201537105U
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Chinese (zh)
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王昌永
王戈
徐鸿雁
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Changchun machine testing Company Limited
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CHANGCHUN RESEARCH INSTITUTE FOR MECHANICAL SCIENCE Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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    • Y02E30/30—Nuclear fission reactors

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Abstract

本实用新型涉及一种蠕变疲劳试验机，属于试验仪器领域。包括主机的承载机架、高温炉、数字控制器、温度控制器、计算机，伺服驱动器与数字控制器连接，交流伺服电机与零间隙滚珠减速器固定连接，减速器输出轴通过涨紧套与小带轮固定连接，滚珠丝杠付装在支承筒上，在滚珠丝杠下端用涨紧套与大带轮固定连接，拉管与滚珠丝杠付的螺母固定连接，拉管上端与下拉杆固定连接，测力传感器固定在上横梁上，上拉杆与测力传感器固定连接。优点是结构新颖，具有功能全、测量精度和自动化高、使用方便灵活、长时工作可靠等特点。

The utility model relates to a creep fatigue testing machine, which belongs to the field of testing instruments. Including the load frame of the main engine, high temperature furnace, digital controller, temperature controller, computer, the servo driver is connected to the digital controller, the AC servo motor is fixedly connected to the zero-gap ball reducer, and the output shaft of the reducer is connected to the small The pulley is fixedly connected, the ball screw is installed on the supporting cylinder, and the lower end of the ball screw is fixedly connected with the large pulley with a tensioning sleeve, the pull tube is fixedly connected with the nut attached to the ball screw, and the upper end of the pull tube is fixed with the pull rod connection, the force sensor is fixed on the upper beam, and the upper pull rod is fixedly connected with the force sensor. The advantages are novel structure, complete functions, high measurement accuracy and automation, convenient and flexible use, and reliable long-term work.

Description

The creep fatigue testing machine
Technical field
The utility model belongs to the test apparatus field, is used for metal material and carries out static creep relaxation test and dynamically tension and compression circulation low-cycle fatigue and creep fatigue test.
Background technology
Metal material stands a constant or alternate load effect when long under certain temperature environment, its mechanical property is in the engineering fields such as aviation, heat energy, metallurgy and a major issue of essential understanding in the research and teaching.More existing both at home and abroad variety production of the instrument of mechanical property when the test metal material is long are as lever creep testing machine, electronics creep testing machine, electo hydraulic servocontrolled fatigue testing machine etc.Test when the lever creep testing machine only can be done static state length in these testing machines; Electronics creep test function is done when static long the test and the unidirectional dynamic test of zero passage not; Though and electo hydraulic servocontrolled fatigue testing machine can be done the dynamic test of tension and compression zero passage, its power consumption is big, testing expenses height when long.
Summary of the invention
The utility model provides a kind of creep fatigue testing machine, to solve the problem that present testing machine is not suitable for carrying out static creep relaxation test and dynamic tension and compression circulation low-cycle fatigue and creep fatigue test.The technical scheme that the utility model is taked is: flexibly connected by the tensioner cover by two root posts and entablature, middle platen is fixedlyed connected with two root post lower ends, middle platen is fixedlyed connected with base, high temperature furnace respectively with digitial controller, temperature controller connects, the quartz rod Strain Extensometer is fixedlyed connected with high temperature furnace, computing machine is connected with digitial controller, servo-driver is connected with digitial controller, AC servo motor is fixedlyed connected with the zero stand-off ball reducer, motor shaft is fixedlyed connected with this reducer input shaft hole, reducer output shaft is fixedlyed connected with small pulley by the tensioner cover, ball screw pair is contained on the carrying cylinder, this carrying cylinder is fixedlyed connected with middle platen, fixedly connected with big belt wheel with the tensioner cover in the ball-screw lower end, link to each other by polywedge bet between big belt wheel and small pulley, trombone slide is fixedlyed connected with the nut of ball screw pair, fixedly connected with lower link in the trombone slide upper end, force cell is fixed on the entablature, upper connecting rod is fixedlyed connected with force cell, is connected push rod between upper connecting rod and lower link.
In order to adapt to the different needs of static and dynamic test, the main frame entablature can move up and down, and test space is adjustable.On the basis that does not increase attachment device, this machine utilizes load maintainer to promote entablature.Between upper connecting rod and lower link, add push rod, unclamp the tensioner cover between entablature and two columns, drive load maintainer and lower link is risen or descend, promote the entablature lifting thus, tighten the tensioner cover after entablature puts in place.
During for assurance tension and compression CYCLIC LOADING, during test power zero passage pause can not be arranged, key is that the transmission link of load maintainer can not be gapped, and this machine has adopted the electromechanical servo load maintainer that is made of AC servo motor, zero stand-off ball reducer, polywedge bet transmission and ball-screw.AC servo motor is fixed on the ball reducer of zero stand-off, and motor shaft directly links to each other with the input hole of speed reduction unit, the gap of having avoided intermediate link to exist.Reducer output shaft with drive the ball-screw rotation by polywedge bet and large and small belt wheel.Large and small belt wheel all adopts the tensioner cover with being connected of reducer shaft and ballscrew shaft, avoids adopting key to connect issuable gap.Fixing trombone slide and lower link on the nut of ball screw pair, the effect screw owing to guide arm during the ball-screw rotation can only move up and down.Because the zero stand-off ball reducer is to adopt ball and eccentric disc transmission, there is not the gap in forward and reverse motion when commutating.The polywedge bet transmission also can not be skidded under the enough preceding topic of expanding force.Ball screw pair gives tight power, and there is not the gap in forward and reverse motion yet.This has just guaranteed that whole loading system tension and compression zero passage circulation time does not pause.
The utility model has the advantages that novel structure, on a testing machine, both can carry out static creep, lax, creep rupture test; Can carry out La La or tension and compression circulation low-cycle fatigue and creep fatigue test again.Have that function is complete, measuring accuracy and robotization height, easy to use flexibly, characteristics such as reliable operation when long.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Flexibly connect by tensioner cover 4 by two root posts 1 and entablature 3, middle platen 12 is fixedlyed connected with two root post lower ends, middle platen is fixedlyed connected with base 19, high temperature furnace 6 respectively with digitial controller 21, temperature controller 23 connects, quartz rod Strain Extensometer 8 is fixedlyed connected with high temperature furnace, computing machine 22 is connected with digitial controller, servo-driver 20 is connected with digitial controller, AC servo motor 14 is fixedlyed connected with zero stand-off ball reducer 15, motor shaft is fixedlyed connected with this reducer input shaft hole, reducer output shaft is fixedlyed connected with small pulley 17 by the tensioner cover, ball screw pair 11 is contained on the carrying cylinder 13, this carrying cylinder is fixedlyed connected with middle platen 12, fixedly connected with big belt wheel 18 with the tensioner cover in the ball-screw lower end, link to each other by polywedge bet 16 between big belt wheel and small pulley, trombone slide 10 is fixedlyed connected with the nut of ball screw pair, fixedly connected with lower link 9 in trombone slide 10 upper ends, force cell 2 is fixed on the entablature 3, upper connecting rod 5 is fixedlyed connected with force cell, is connected push rod 7 between upper connecting rod and lower link.
The course of work: motor rotates through the leading screw that the polywedge bet transmission drives ball screw pair by speed reduction unit, because a guide arm is arranged on the nut of ball screw pair, it can not be rotated can only move up and down, and applies test power by trombone slide and the 9 pairs of samples of lower link that are fixed on the nut; The power that affacts on the sample is measured by force cell by upper connecting rod 5.The signal of force cell enters controller, drives AC servo motor by controller by servo-driver 20, drives ball-screw by motor by speed reduction unit again, constitutes a closed loop servo system thus.This system has and is quick on the draw, and the servo-actuated performance is good, running steadily, characteristics such as reliable operation when long.
High temperature furnace 6 is housed around the sample, and for sample provides the hot test environment of requirement, quartz rod Strain Extensometer 8 is inserted from the high temperature furnace side and is pushed up on the sample marking distance, and the distortion that sample produces under the effect of test power is measured by extensometer.
Slave computer and master system are formed in digitial controller and computing machine communication, can finish process of the test control and number a tree name acquisition process to main frame.

Claims (1)

1.一种蠕变疲劳试验机，其特征在于：由两根立柱与上横梁通过涨紧套活动连接，中台板与两根立柱下端固定连接，中台板与底座固定连接，高温炉分别与数字控制器、温度控制器连接，石英杆应变式引伸计与高温炉固定连接，计算机与数字控制器连接，伺服驱动器与数字控制器连接，交流伺服电机与零间隙滚珠减速器固定连接，电机轴与该减速器输入轴孔固定连接，减速器输出轴通过涨紧套与小带轮固定连接，滚珠丝杠付装在支承筒上，该支承筒与中台板固定连接，在滚珠丝杠下端用涨紧套与大带轮固定连接，大带轮与小带轮间通过多楔带相连，拉管与滚珠丝杠付的螺母固定连接，拉管上端与下拉杆固定连接，测力传感器固定在上横梁上，上拉杆与测力传感器固定连接，上拉杆与下拉杆间连接顶杆。1. A creep fatigue testing machine, characterized in that: two uprights and the upper beam are movably connected by tensioning sleeves, the middle platform is fixedly connected to the lower ends of the two uprights, the middle platform is fixedly connected to the base, and the high-temperature furnace is respectively It is connected with the digital controller and temperature controller, the quartz rod strain gauge is fixedly connected with the high temperature furnace, the computer is connected with the digital controller, the servo drive is connected with the digital controller, the AC servo motor is fixedly connected with the zero-gap ball reducer, and the motor The shaft is fixedly connected with the input shaft hole of the reducer, the output shaft of the reducer is fixedly connected with the small pulley through the tensioner sleeve, the ball screw is mounted on the support cylinder, and the support cylinder is fixedly connected with the middle plate, and the ball screw The lower end is fixedly connected with the large pulley with a tensioning sleeve, the large pulley is connected with the small pulley through a V-ribbed belt, the pull tube is fixedly connected with the nut attached to the ball screw, the upper end of the pull tube is fixedly connected with the pull rod, and the load cell It is fixed on the upper beam, the upper pull rod is fixedly connected with the load cell, and the upper pull rod and the lower rod are connected with a push rod.
CN2010201537105U 2010-04-09 2010-04-09 Creep fatigue testing machine Expired - Fee Related CN201653835U (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102621011A (en) * 2012-03-28 2012-08-01 天津大学 Subminiature minimal invasion high-temperature creep fatigue testing machine and application thereof
CN102967508A (en) * 2012-11-27 2013-03-13 北京大学 Device and method for testing ultrahigh-temperature indentation load-displacement curve
CN103776702A (en) * 2014-01-16 2014-05-07 西安交通大学 Low-cycle fatigue testing device and method under corrosion and high-temperature environments
CN103884603A (en) * 2014-04-02 2014-06-25 华东理工大学 Creep deformation-fatigue crack growth testing device and corresponding testing method
CN104777040A (en) * 2015-02-02 2015-07-15 广东电网有限责任公司电力科学研究院 Biaxial stress high temperature creep deformation test apparatus
CN110261218A (en) * 2019-06-28 2019-09-20 华南理工大学 A test device for testing creep and stress relaxation of rubber vibration damping products
CN110646281A (en) * 2019-09-10 2020-01-03 广西大学 A tensile testing machine suitable for low cycle fatigue testing
CN110864983A (en) * 2019-11-22 2020-03-06 浙江工业大学 A lifting adjustment device for high temperature furnace of creep fatigue testing machine
CN112986004A (en) * 2021-02-09 2021-06-18 中国科学院金属研究所 Tension-compression bidirectional high-temperature creep endurance testing machine

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102621011B (en) * 2012-03-28 2014-02-26 天津大学 Ultra-miniature minimally invasive high temperature creep fatigue testing machine and its application
CN102621011A (en) * 2012-03-28 2012-08-01 天津大学 Subminiature minimal invasion high-temperature creep fatigue testing machine and application thereof
CN102967508A (en) * 2012-11-27 2013-03-13 北京大学 Device and method for testing ultrahigh-temperature indentation load-displacement curve
CN102967508B (en) * 2012-11-27 2014-07-02 北京大学 Method for testing ultrahigh-temperature indentation load-displacement curve
CN103776702B (en) * 2014-01-16 2016-01-13 西安交通大学 A kind of corrosion and hot environment under low cycle fatigue test device and method
CN103776702A (en) * 2014-01-16 2014-05-07 西安交通大学 Low-cycle fatigue testing device and method under corrosion and high-temperature environments
CN103884603A (en) * 2014-04-02 2014-06-25 华东理工大学 Creep deformation-fatigue crack growth testing device and corresponding testing method
CN104777040A (en) * 2015-02-02 2015-07-15 广东电网有限责任公司电力科学研究院 Biaxial stress high temperature creep deformation test apparatus
CN110261218A (en) * 2019-06-28 2019-09-20 华南理工大学 A test device for testing creep and stress relaxation of rubber vibration damping products
CN110646281A (en) * 2019-09-10 2020-01-03 广西大学 A tensile testing machine suitable for low cycle fatigue testing
CN110864983A (en) * 2019-11-22 2020-03-06 浙江工业大学 A lifting adjustment device for high temperature furnace of creep fatigue testing machine
CN110864983B (en) * 2019-11-22 2024-06-11 浙江工业大学 A lifting and adjusting device for a high temperature furnace of a creep fatigue testing machine
CN112986004A (en) * 2021-02-09 2021-06-18 中国科学院金属研究所 Tension-compression bidirectional high-temperature creep endurance testing machine
CN112986004B (en) * 2021-02-09 2022-09-09 中国科学院金属研究所 Tension-compression bidirectional high-temperature creep endurance testing machine

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: CHANGCHUN CHINA MACHINERY TESTING CO., LTD.

Free format text: FORMER OWNER: CHANGCHUN ACADEMY OF MACHINERY SCIENCE + TECHNOLOGY CO., LTD.

Effective date: 20110623

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20110623

Address after: 130012 No. 1118, Silicon Valley Avenue, Changchun, Jilin

Patentee after: Changchun machine testing Company Limited

Address before: 130012 No. 1118, Silicon Valley Avenue, Changchun, Jilin

Patentee before: Changchun Research Institute for Mechanical Science Co., Ltd.

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101124

Termination date: 20140409