CN104044985A - Steel wire rope tensioning stress detection system - Google Patents
Steel wire rope tensioning stress detection system Download PDFInfo
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- CN104044985A CN104044985A CN201310560498.2A CN201310560498A CN104044985A CN 104044985 A CN104044985 A CN 104044985A CN 201310560498 A CN201310560498 A CN 201310560498A CN 104044985 A CN104044985 A CN 104044985A
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- China
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- steel wire
- piston
- stress detection
- oil pressure
- detection device
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Abstract
The invention discloses a steel wire rope tensioning stress detection system. The detection system comprises a fixed pulley, a guide pulley, a balance weight, a steel wire rope, a stress detection device and a computer. The steel wire rope is arranged on the fixed pulley; the guide pulley is arranged below the fixed pulley; the steel wire rope below the guide pulley is provided with the balance weight; the steel wire rope on the other side different from the guide pulley mounting side is provided with the stress detection device which is connected with the computer. The steel wire rope tensioning stress detection system is simple in structure and convenient to operate, an electromechanical integration technology is fully utilized, and the tensioning stress for lifting the steel wire rope can be quantitatively detected, so that the normal operation of coal mining work and the life safety of mine workers can be guaranteed.
Description
Technical field
Mechanical engineering field of the present invention, relates in particular to a kind of steel wire tensioning and answers force detection system.
Background technology
Mine hoist equipment is the major equipment of lifting mine staff and material in process of coal mining, and mine hoisting steel cable is an important component part in mine hoist equipment, it and mine staff's life security and the normal operation of coal mining are closely bound up.Therefore,, in order to ensure the safe handling of mine hoist equipment, just need to, in the process of correct use steel rope, regularly it be detected and safeguard.Wherein in the stressed detection of steel rope, domestic each large coal master will adopt traditional labelling method and the ripple method of shaking at present, although shake, Bo Fa is simple, but to the ripple time of return that shakes, calculate inaccurate, precision is lower, and it all can only carry out qualitative detection with traditional labelling method is the same, the tensile stress of detection steel rope that can not be quantitative, can not guarantee the normal operation of coal mining work and mine staff's life security well.
Summary of the invention
The object of the present invention is to provide a kind of steel wire tensioning to answer force detection system, be intended to solve the tensile stress of the detection steel rope that existing steel rope monitor for stress can not be quantitative, can not guarantee well the problem of the normal operation of coal mining work and mine staff's life security.
The present invention is achieved in that a kind of steel wire tensioning answers force detection system to comprise fixed pulley, track adjusting wheel, balance block, steel rope, stress detection device, computing machine.Steel rope is arranged on fixed pulley, and a track adjusting wheel is installed below fixed pulley, on the steel rope of track adjusting wheel below, a balance block is installed; Stress detection device is installed being different from track adjusting wheel and installing on the steel wire of a side, stress detection device is connected with computing machine.
Further, described stress detection device comprises roller, hydraulic actuating cylinder, spring, oil pressure sensor.When tensile force F acts on stress detection device, liquid presses piston pole has and produces certain displacement L, now in hydraulic ram, can produce an oil pressure Δ P who changes, and meanwhile, spring can produce elastic force F
bullet=k Δ L, can be obtained by equilibrium of forces: 2Fsin α=2F
bullet+ 2F liquid, obtains
F=(k Δ L+Δ PA
piston) sin α (1)
In formula, Δ P=P
2-P
1, know again in the situation that oil temperature is constant have P
1v
1=P
2v
2
Thereby can solve: Δ P/ Δ L=P
2/ L
1so, Δ
l=(P
2-P
1) L
1/ P
2, substitution formula (1) can obtain:
F=[k (P
2-P
1) L
1/ P
2+ (P
2-P
1) A
piston]/sin α (2)
Wherein, P
1for stressed front oil pressure; P
2for stressed rear oil pressure all can be detected and be obtained by oil pressure detecting sensor; L
1distance for stressed secondary piston and piston cylinder bottom; A
pistondiameter for hydraulic actuating cylinder; α is the angle of steel rope bending, all can before stressed, by actual measurement, obtain.
σ=4/ π d
2[k(P2-P1) L
1/ P2+ (P2-P1) A
piston]/sin α (3)
When P1 is zero, formula (3) can be changed into: σ=4 π d
2(kL
1+ P
2a
piston)/sin α
Now when detect stressed after oil pressure P
2after can try to achieve the tensioning tensile stress of steel rope.
effect gathers
The present invention is simple in structure, easy to operate, takes full advantage of electromechanical integration technology,, the tensile stress that detects hoisting cable that can be quantitative, thus can guarantee the normal operation of coal mining work and mine staff's life security.
Accompanying drawing explanation
Fig. 1 is the structural representation that steel wire tensioning that the embodiment of the present invention provides is answered force detection system;
In figure: 1, fixed pulley; 2, track adjusting wheel; 3, balance block; 4, steel rope; 5, stress detection device; 6, computing machine
Fig. 2 is the stressed schematic diagram of stress detection device that the embodiment of the present invention provides.
The specific embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 shows the structure of tensile stress monitoring system of the present invention, and as shown in the figure, the present invention is achieved in that a kind of steel wire tensioning answers force detection system to comprise fixed pulley 1, track adjusting wheel 2, balance block 3, steel rope 4, stress detection device 5, computing machine 6.Steel rope 4 is arranged on fixed pulley 1, and a track adjusting wheel 2 is installed below fixed pulley 1, and a balance block 3 is installed on the steel rope 4 of track adjusting wheel 2 belows; On the steel rope 4 that is different from track adjusting wheel 2 installation one sides, stress detection device 5 is installed, stress detection device 5 is connected with computing machine 6.
Further, described stress detection device 6 comprises roller, hydraulic actuating cylinder, spring, oil pressure sensor.When tensile force F acts on stress detection device, liquid presses piston pole has and produces certain displacement L, now in hydraulic ram, can produce an oil pressure Δ P who changes, and meanwhile, spring can produce elastic force F
bullet=k Δ L, can be obtained by equilibrium of forces: 2Fsin α=2F
bullet+ 2F liquid, obtains
F=(k Δ L+Δ PA
piston) sin α (1)
In formula, Δ P=P
2-P
1, know again in the situation that oil temperature is constant have P
1v
1=P
2v
2
Thereby can solve: Δ P/ Δ L=P
2/ L
1so, Δ
l=(P
2-P
1) L
1/ P
2, substitution formula (1) can obtain:
F=[k (P
2-P
1) L
1/ P
2+ (P
2-P
1) A
piston]/sin α (2)
Wherein, P
1for stressed front oil pressure; P
2for stressed rear oil pressure all can be detected and be obtained by oil pressure detecting sensor; L
1distance for stressed secondary piston and piston cylinder bottom; A
pistondiameter for hydraulic actuating cylinder; α is the angle of steel rope bending, all can before stressed, by actual measurement, obtain.
σ=4/ π d
2[k(P2-P1) L
1/ P2+ (P2-P1) A
piston]/sin α (3)
When P1 is zero, formula (3) can be changed into: σ=4 π d
2(kL
1+ P
2a
piston)/sin α
Now when detect stressed after oil pressure P
2after can try to achieve the tensioning tensile stress of steel rope, computing machine carries out data processing receipts, can to the tensioning tensile stress of steel rope, detect in real time, thereby can guarantee the normal operation of coal mining work and mine staff's life security.
Although above-mentioned, by reference to the accompanying drawings the specific embodiment of the present invention is described; but be not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various modifications that performing creative labour can make or distortion still within protection scope of the present invention.
Claims (2)
1. a steel wire tensioning is answered force detection system, it is characterized in that, described steel wire tensioning answers force detection system to comprise fixed pulley, track adjusting wheel, balance block, steel rope, stress detection device, computing machine, steel rope is arranged on fixed pulley, a track adjusting wheel is installed below fixed pulley, on the steel rope of track adjusting wheel below, a balance block is installed; Stress detection device is installed being different from track adjusting wheel and installing on the steel wire of a side, stress detection device is connected with computing machine.
2. steel wire tensioning as claimed in claim 1 is answered force detection system, it is characterized in that, described stress detection device comprises roller, hydraulic actuating cylinder, spring, oil pressure sensor,
When tensile force F acts on stress detection device, liquid presses piston pole has and produces certain displacement L, now in hydraulic ram, can produce an oil pressure Δ P who changes, and meanwhile, spring can produce elastic force F
bullet=k Δ L, can be obtained by equilibrium of forces: 2Fsin α=2F
bullet+ 2F liquid, obtains
F=(k Δ L+Δ PA
piston) sin α (1)
In formula, Δ P=P
2-P
1, know again in the situation that oil temperature is constant have P
1v
1=P
2v
2
Thereby can solve: Δ P/ Δ L=P
2/ L
1so, Δ
l=(P
2-P
1) L
1/ P
2, substitution formula (1) can obtain:
F=[k (P
2-P
1) L
1/ P
2+ (P
2-P
1) A
piston]/sin α (2)
Wherein, P
1for stressed front oil pressure; P
2for stressed rear oil pressure all can be detected and be obtained by oil pressure detecting sensor; L
1distance for stressed secondary piston and piston cylinder bottom; A
pistondiameter for hydraulic actuating cylinder; α is the angle of steel rope bending, all can before stressed, by actual measurement, obtain,
σ=4/ π d
2[k(P2-P1) L
1/ P2+ (P2-P1) A
piston]/sin α (3)
When P1 is zero, formula (3) can be changed into: σ=4 π d
2(kL
1+ P
2a
piston)/sin α
Now when detect stressed after oil pressure P
2after can try to achieve the tensioning tensile stress of steel rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310560498.2A CN104044985A (en) | 2013-12-30 | 2013-12-30 | Steel wire rope tensioning stress detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310560498.2A CN104044985A (en) | 2013-12-30 | 2013-12-30 | Steel wire rope tensioning stress detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104044985A true CN104044985A (en) | 2014-09-17 |
Family
ID=51498446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310560498.2A Pending CN104044985A (en) | 2013-12-30 | 2013-12-30 | Steel wire rope tensioning stress detection system |
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| CN (1) | CN104044985A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104891317A (en) * | 2015-04-29 | 2015-09-09 | 南京梅山冶金发展有限公司 | Elevator rope coded disc butting device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532894A (en) * | 2009-04-16 | 2009-09-16 | 浙江工业大学 | Intelligent portable cable tension measuring apparatus |
| CN202110017U (en) * | 2010-12-13 | 2012-01-11 | 天津工程机械研究院 | Winch cable tension measuring device |
| CN202710232U (en) * | 2012-06-29 | 2013-01-30 | 天津市津阳金属制品有限公司 | Steel wire rope tensioning force tester |
-
2013
- 2013-12-30 CN CN201310560498.2A patent/CN104044985A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101532894A (en) * | 2009-04-16 | 2009-09-16 | 浙江工业大学 | Intelligent portable cable tension measuring apparatus |
| CN202110017U (en) * | 2010-12-13 | 2012-01-11 | 天津工程机械研究院 | Winch cable tension measuring device |
| CN202710232U (en) * | 2012-06-29 | 2013-01-30 | 天津市津阳金属制品有限公司 | Steel wire rope tensioning force tester |
Non-Patent Citations (2)
| Title |
|---|
| 曹国宏等: "一种新型矿井提升钢丝绳张紧应力检测装置", 《煤炭工程》 * |
| 曹国宏等: "一种新型矿井提升钢丝绳张紧应力检测装置", 《煤炭工程》, no. 6, 30 June 2013 (2013-06-30), pages 114 - 116 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104891317A (en) * | 2015-04-29 | 2015-09-09 | 南京梅山冶金发展有限公司 | Elevator rope coded disc butting device |
| CN104891317B (en) * | 2015-04-29 | 2017-01-11 | 南京梅山冶金发展有限公司 | Elevator rope coded disc butting device |
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Application publication date: 20140917 |