CN202351135U - System for monitoring fatigue of steel wire rope on line based on five-point bending test - Google Patents

System for monitoring fatigue of steel wire rope on line based on five-point bending test Download PDF

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Publication number
CN202351135U
CN202351135U CN 201120415179 CN201120415179U CN202351135U CN 202351135 U CN202351135 U CN 202351135U CN 201120415179 CN201120415179 CN 201120415179 CN 201120415179 U CN201120415179 U CN 201120415179U CN 202351135 U CN202351135 U CN 202351135U
Authority
CN
China
Prior art keywords
wire rope
test
strain
crooked
foil gauge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201120415179
Other languages
Chinese (zh)
Inventor
刘敏
杨帆
蒋红庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING JIANGONG THIRD CONSTRUCTION Co Ltd
Chongqing Construction Engineering Group Co Ltd
Original Assignee
CHONGQING JIANGONG THIRD CONSTRUCTION Co Ltd
Chongqing Construction Engineering Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHONGQING JIANGONG THIRD CONSTRUCTION Co Ltd, Chongqing Construction Engineering Group Co Ltd filed Critical CHONGQING JIANGONG THIRD CONSTRUCTION Co Ltd
Priority to CN 201120415179 priority Critical patent/CN202351135U/en
Application granted granted Critical
Publication of CN202351135U publication Critical patent/CN202351135U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model belongs to the field of monitoring of mechanical stress, and particularly discloses a system for monitoring the fatigue of a steel wire rope on line based on a five-point bending test. The system comprises a five-point bending test steel frame, strain foils, an on-site acquisition box and a far-end computer terminal, wherein the five-point bending test steel frame comprises three brackets and two test rods which are arranged straightly; two spans which are adjacent to each other and have different lengths are formed by the brackets; the test rods are arranged in the spans; guide wheels are arranged on the tops of the brackets and the test rods; the strain foils are arranged on the test rods; a strain acquisition instrument and a wireless transmission box are arranged in the on-site acquisition box; the strain foils are electrically connected with the strain acquisition instrument; and the strain acquisition instrument, the wireless transmission box and the far-end computer terminal are used for transmitting data through a wireless network. According to the system, the function of transmitting the data in a wireless mode is realized by the on-site acquisition box, so that the steel wire rope can be monitored on line in real time.

Description

Based on the tired on-line monitoring system of the wire rope of 5 crooked tests
Technical field
The utility model belongs to mechanical stress monitoring field, is specifically related to the tired on-line monitoring system of a kind of wire rope based on 5 crooked tests.
Background technology
Wire rope is mainly used in traction overhead stranded conductor, fixedly work such as shaft tower, lifting framework equipment, and it is widely used in the work such as equipment installation, lifting, dismounting, debugging, uses frequently, and environment of living in is abominable, and it is complicated to bear load.Wire rope also is a Current Collector Sleave the most commonly used in the hoisting operation as one of topmost parts of hoisting machinery.The real-time detection of wire rope is become most important, the detection of wire rope is the work of a complicacy, often is difficult to accomplish that correct damage judges, the potential safety hazard that exists is difficult to timely discovery; When serious, wire rope will be in case fracture will jeopardize the person and device security.Engineering with long apart from wire rope one to being regarded as " high-risk member ", the reliability of its carrying will be directly connected to the safety of engineer operation personnel and equipment, safe and reliable state that we can say wire rope enjoys the great attention of administrative authoritys at different levels.The present test basis of all various wire rope is like international standard IS04309-81 etc.But these then can't be monitored the fatigue damage failure mode that wire rope is the most common according to only comparatively effective to failure modes such as outside fracture of wire and wearing and tearing.At present, the fatigue monitoring of wire rope is mainly concentrated on the drag-line aspect of bridge.The bridge cable two ends are fixed, and boundary condition can not take place, and its suffered impulsive force is relatively limited, can adopt equipment such as vibratory drilling method, pressure rings to carry out fatigue monitoring easily.But the length of steel wire rope of hoisting machinery and boundary condition will change with the lifting and the decline of weight.Simultaneously, the time of impact force action is short but bigger to the influence of wire rope fatigure failure, so the dynamic real-time of monitoring system has been proposed very high requirement.Though being published in " the twin spans contact cable tension Design of Sensor " of o. 11th in 2004 the 23rd volume discloses based on the principle of twin spans bending with Chinese patent CN2463231Y the fatigue state of cable wire has been monitored; But this technical scheme is interrupted the monitoring of fatigue data, does not possess real-time.Therefore, set up based on the stressed on-line monitoring system of the wire rope of wireless transmission, thereby the unsafe factor of hoisting machinery wire rope fatigure failure is carried out on-line monitoring, prevent great security incident, have great realistic significance and wide application prospect.
The utility model content
The technical matters that the utility model will solve is in order to realize the real-time Fatigue Assessment of wire rope, a kind of tired on-line monitoring system of wire rope based on 5 crooked tests and employing wireless transmission to be provided.
In order to solve the problems of the technologies described above; The utility model provides a kind of wire rope based on 5 crooked tests tired on-line monitoring system; Comprise 5 crooked test steelframes and foil gauge; Said 5 crooked test steelframes comprise three supports and two reference test bars that are arranged in a linear, and are configured to adjacent not isometric two and stride, and reference test bar is located at span centre; The top of support and reference test bar is provided with guide wheel, and foil gauge is located on the reference test bar, also comprises collection in worksite case and far-end computer terminal, is provided with strain acquirement appearance, wireless transmit box in the collection in worksite case; The Metal Substrate foil gauge is electrically connected with the strain acquirement appearance, and data transfer is carried out through wireless network in strain acquirement appearance, wireless transmit box and far-end computer terminal.
When adopting the three-point bending technology to carry out the Suo Li test; Need change span centre place displacement to carry out twice measurement and could accomplish the wire rope forces testing one time; So adopt the three-point bending technology can not realize the continuous on-line testing that wire rope is stressed; And 5 bending techniques adopt two to stride beam and adopt two foil gauges of different displacements to carry out continuous on-line testing to wire rope is stressed simultaneously at the span centre place respectively, thereby the Fatigue Assessment that can be wire rope provides basic data.
Adopt the wire rope fatigue based on 5 crooked tests of technique scheme to have following characteristics: the fatigue state of monitoring wire rope that 1, can be real-time; In time scent a hidden danger, prevent great complete accident, because wire rope passes at 5 and tests steelframe fully in operation; The Metal Substrate foil gauge is checked through the fatigue state of wire rope timely; The Metal Substrate foil gauge passes to the strain acquirement appearance with real time data, realizes remote monitoring through wireless network, for safe in utilization guarantee is provided; 2, simple in structure, with low cost, because 5 crooked test steelframes can adopt Metal Material Welding commonly used to form, guarantee that five legs get final product at straight line; 3, simple to operate, foil gauge directly can be given the wireless transmit box with data transfer, cooperates with remote supervision system through wireless network again, and operating personnel only need before remote supervision system, to note data variation, exceed in the time of can be permitted scope, send early warning; 4, realized that data acquisition and signal launch integrated function, the setting of collection in worksite case makes the emission of data acquisition box signal integrated.
As the further improvement of the utility model, the leg of said 5 crooked test steelframes is provided with cutting, and foil gauge is located in the cutting.Foil gauge is located at the external dimensions that can not have influence on steelframe in the cutting, can avoid the infringement of other objects to foil gauge simultaneously.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation:
Fig. 1 is the steel frame construction synoptic diagram of the utility model based on the tired on-line monitoring system of wire rope of 5 crooked tests;
Fig. 2 is the synoptic diagram of the utility model based on the tired on-line monitoring system collection in worksite of the wire rope case of 5 crooked tests.
Embodiment
As depicted in figs. 1 and 2; The utility model provides a kind of wire rope based on 5 crooked tests tired on-line monitoring system; Comprise 5 crooked test steelframes 1 and foil gauge 3; Said 5 crooked test steelframes comprise three supports and two reference test bars that are arranged in a linear, and are configured to adjacent not isometric two and stride, and reference test bar is located at span centre; The top of support and reference test bar is provided with guide wheel, and foil gauge 3 is located on the reference test bar, also comprises collection in worksite case 8 and far-end computer terminal, is provided with strain acquirement appearance 6, wireless transmit box 5 in the collection in worksite case 8; Foil gauge 3 is electrically connected with strain acquirement appearance 6, and data transfer is carried out through wireless network in strain acquirement appearance 6, wireless transmit box 5 and far-end computer terminal, and the leg of said 5 crooked test steelframes 1 is provided with cutting 2, and foil gauge 3 is located in the cutting 2.
The on-line monitoring process of the utility model is following: at first, carry out remote computer and be connected with wireless network between the collection in worksite case; Secondly, fix 5 crooked test steelframes,, connect foil gauge, the debugging foil gauge the guide wheel of 5 crooked test steelframes of steel wire penetrating; At last, after foil gauge is in proper working order,, wire rope is realized on-line real time monitoring through the real-time monitoring calculation of computing machine.
Above-described only is the preferred implementation of the utility model; Should be understood that for a person skilled in the art; Under the prerequisite that does not break away from the utility model structure, can also make some distortion and improvement, these can not influence effect and practical applicability that the utility model is implemented.

Claims (2)

1. based on the tired on-line monitoring system of the wire rope of 5 crooked tests; Comprise 5 crooked test steelframes and foil gauge, said 5 crooked test steelframes comprise three supports and two reference test bars that are arranged in a linear, and are configured to adjacent not isometric two and stride; Reference test bar is located at span centre; The top of support and reference test bar is provided with guide wheel, and foil gauge is located on the reference test bar, it is characterized in that: also comprise collection in worksite case and far-end computer terminal; Be provided with strain acquirement appearance, wireless transmit box in the collection in worksite case; Foil gauge is electrically connected with the strain acquirement appearance, and data transfer is carried out through wireless network in strain acquirement appearance, wireless transmit box and far-end computer terminal.
2. the tired on-line monitoring system of the wire rope based on 5 crooked tests according to claim 1, it is characterized in that: the leg of said 5 crooked test steelframes is provided with cutting, and foil gauge is located in the cutting.
CN 201120415179 2011-10-27 2011-10-27 System for monitoring fatigue of steel wire rope on line based on five-point bending test Expired - Fee Related CN202351135U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120415179 CN202351135U (en) 2011-10-27 2011-10-27 System for monitoring fatigue of steel wire rope on line based on five-point bending test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120415179 CN202351135U (en) 2011-10-27 2011-10-27 System for monitoring fatigue of steel wire rope on line based on five-point bending test

Publications (1)

Publication Number Publication Date
CN202351135U true CN202351135U (en) 2012-07-25

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Application Number Title Priority Date Filing Date
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Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104390865A (en) * 2014-11-07 2015-03-04 江苏省交通科学研究院股份有限公司 Silicon core pipe bending test device
CN104407046A (en) * 2014-11-26 2015-03-11 中国矿业大学 Adjustable variable-work-condition steel wire rope dynamic detection test device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104390865A (en) * 2014-11-07 2015-03-04 江苏省交通科学研究院股份有限公司 Silicon core pipe bending test device
CN104390865B (en) * 2014-11-07 2017-01-18 江苏省交通科学研究院股份有限公司 Silicon core pipe bending test device
CN104407046A (en) * 2014-11-26 2015-03-11 中国矿业大学 Adjustable variable-work-condition steel wire rope dynamic detection test device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120725

Termination date: 20191027