CN101497397A - Arrangement method of cable wire inside cable wire core conveying belt - Google Patents
Arrangement method of cable wire inside cable wire core conveying belt Download PDFInfo
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- CN101497397A CN101497397A CNA200910061050XA CN200910061050A CN101497397A CN 101497397 A CN101497397 A CN 101497397A CN A200910061050X A CNA200910061050X A CN A200910061050XA CN 200910061050 A CN200910061050 A CN 200910061050A CN 101497397 A CN101497397 A CN 101497397A
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- steel rope
- cable wire
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- transfer device
- conveying belt
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Abstract
The invention discloses a method for arraying interior wire ropes of a wire rope core conveyer belt, and relates to a method for manufacturing a conveyer belt. Both sides of the conveyer belt are provided with sparse large-diameter wire ropes for stressing, and a middle part with higher temperature is provided with dense small-diameter wire ropes for conducting heat. Under the same cross section, the wire ropes are more, the perimeters of the cross sections of the wire ropes are larger, and the contact area between the wire ropes and the conveyer belt is larger, so that the limit strength efficiency of the wire rope core conveyer belt can be improved to 80 percent from the prior 64 percent so as to prolong the service life of the conveyer belt by two years.
Description
Technical field
The present invention relates to the load-transfer device manufacture method, particularly a kind of arrangement method of cable wire inside cable wire core conveying belt.
Background technology
In the steel cable core conveying belt of domestic present production and use, Steel cord is equidistant arrangement, and every Steel cord diameter standard is identical, this kind ranking method has been ignored the load-transfer device actual conditions that roll up on the belt body both sides in real-world operation on the centre, be that load-transfer device is when convey materials, especially carry when having free flowability and landing material, require load-transfer device rolling up in various degree to be arranged, to prevent the material landing from both sides to the centre.Some high-temperature material or strong acid alkaline material are very high to the requirement of load-transfer device, as when carrying high temperature slack lime material, belt body temperature middle and both sides differ greatly, cause the load-transfer device belt body inequality of being heated, in real-world operation, load-transfer device can influence the unbalance stress of belt body steel rope in the irregularity of material transversal surface temperature like this, thereby can cause bulk strength to descend, cause the belt body infantile failure easily, shorten service life.
Steel cord conveyor belt with the ST1600 model is an example, when carrying 150 ℃ of materials, heal differentials middle and both sides are 100-110 ℃, the steel rope that is heated, be that the be heated steel rope of elongated portion of material supporting region is about 38, the elongated portion steel rope is not about 56, and the stressed of belt then at first concentrates on 56 steel ropes that seriously are not subjected to thermal elongation.The bigger decline of whole powerful meeting of belt and joint can only reach 60% of normal brute force, i.e. 56 ÷ 94=60%.Adding the medial elongate portion branch also has part stressed, gives certain correction, and comprehensive strength can only reach 80%, can only consider by 60% under the limit high temperature overload state.Under 150 ℃ of conditions of high temperature, the dynamic bond strength of rubber and steel rope can obviously descend significantly, below is my company's battery of tests data:
Higher at normal temperatures from the binding power of above steel rope as can be seen and rubber, binding power descends about 45% when reaching 150 ℃, can only reach 55～60% of normal temperature, can automatically restore to initial condition again along with temperature drops to normal temperature adhesive power.
Summary of the invention
Technical matters to be solved by this invention provides a kind of arrangement method of cable wire inside cable wire core conveying belt, can put forward the intensity under the limit extraordinary high temperature overload state, improves the belt body heat dispersion, prolongs the service life of load-transfer device.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of arrangement method of cable wire inside cable wire core conveying belt, in the inner both sides of load-transfer device many major diameter steel ropes are set, at the load-transfer device bosom many minor diameter steel ropes are set, the spacing between the major diameter steel rope is greater than the spacing between the minor diameter steel rope.
A kind of steel cable core conveying belt, the major diameter steel rope of 21-27 root diameter 7.5-8.5mm respectively is set in the inner both sides of load-transfer device, the minor diameter steel rope of 31-37 root diameter 4.0-6.0mm is set at the load-transfer device bosom, spacing between the major diameter steel rope is 14-16mm, and the spacing between the minor diameter steel rope is 10-12mm.
A kind of steel cable core conveying belt, the major diameter steel rope of 24 diameter 8.1mm respectively is set in the inner both sides of load-transfer device, at the load-transfer device bosom minor diameter steel rope of 34 diameter 6.0mm is set, the spacing between the major diameter steel rope is 15mm, and the spacing between the minor diameter steel rope is 12mm.
A kind of arrangement method of cable wire inside cable wire core conveying belt provided by the invention, be used for stressed by more sparse major diameter steel rope is set in the load-transfer device both sides, divide the finer and closely woven minor diameter steel rope of setting to be used for heat conduction in the medium temperature higher part, and same cross-sectional is down long-pending, the steel rope girth in steel rope cross section more at most is big more, area of contact between steel rope and the load-transfer device is also big more like this, thereby can with the ultimate strength efficient of steel cable core conveying belt from before 64% be increased to 80%, prolong the 2 years service life of load-transfer device.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is that the inner wire rope is arranged scheme drawing among the present invention;
The specific embodiment
Embodiment:
In Fig. 1, temperature of charge in the middle of the load-transfer device on 4 positions is about 150 ℃, differ 100 ℃-110 ℃ with the low-temperature space temperature difference, steel cord conveyor belt with the ST1600 model is an example, its inner wire rope is equidistant the arrangement, the be heated steel rope of elongated portion of the rope stretch that the material supporting region at 4 positions is heated in the middle of the load-transfer device is about 38, and low-temperature region not elongated portion steel rope is about 56, and the stressed of belt then at first concentrates on 56 steel ropes that seriously are not subjected to thermal elongation.The decline of can having a greatly reduced quality of the whole brute force of belt and joint can only reach 60% (56 ÷ 94=60%) of normal brute force.Adding the medial elongate portion branch also has part stressed, gives certain correction, and comprehensive strength can only reach 80%, can only consider by 60% under the extraordinary high temperature overload limit dynamic state of run.
Under the condition of high temperature (150 ℃), the dynamic bond strength of rubber and steel rope can obviously descend significantly, the binding power of steel rope and rubber is higher at normal temperatures, binding power descends about 45% when reaching 150 ℃, 55～60% of normal temperature can only be reached, initial condition can be automatically restored to again along with temperature drops to normal temperature adhesive power.
Below be example with ST2500-1200 model steel cable core conveying belt:
The theoretical total brute force of the ST2500-1200 of normal equidistant arrangement is:
76 * 41.25kN/mm=3135kN/mm,
Material containing temperature rise district is that 1200mm * 1/3=400mm is wide in the middle of supposing, this section steel rope is stressed because of elongation loses, and then effectively stressed steel rope is:
76-400/15=49 (root)
49 * 41.25kN/mm=2021.25kN/mm
The practical limit strength efficiency:
2021.25kN/mm÷3135kN/mm＝64％
A kind of steel cable core conveying belt made from the inventive method, the major diameter steel rope 1 of 24 diameter 8.1mm respectively is set in load-transfer device 3 inner both sides 5, the minor diameter steel rope 2 of 34 diameter 6.0mm is set at load-transfer device 3 bosoms 4, spacing between the major diameter steel rope 1 is 15mm, and the spacing between the minor diameter steel rope 2 is 12mm.
The major diameter steel rope 1 single breaking force 51.98kN of diameter 8.1mm amounts to 1247.52kN, and the minor diameter steel rope 2 single breaking force 26.4kN of diameter 6.0mm amount to 897.6kN.And above specific arrangement structure, theoretical total brute force is:
48 * 51.98kN/mm+34 root * 26.4kN/mm=3392.64kN/mm
It is stressed to suppose that 34 steel ropes in middle material containing temperature rise district lose, and then effectively stressed steel rope is 48:
48 * 51.98kN/mm=2495.04kN/mm
The practical limit strength efficiency is:
2495.04kN/mm÷3135kN/mm＝80％。
Can draw the improved efficiency 16% of the equidistant aligning method of a kind of arrangement method of cable wire inside cable wire core conveying belt provided by the invention steel rope than before under ultimate strength by above.Factors such as the diameter of steel rope, the radical of arrangement and spacing are subjected to factor affecting such as the width of load-transfer device belt body and purposes, fluctuate in the certain numerical value scope, need carry out optimum ratio by experiment.
Claims (3)
1, a kind of arrangement method of cable wire inside cable wire core conveying belt, it is characterized in that: many major diameter steel ropes (1) are set in the inner both sides of load-transfer device (3) (5), at load-transfer device (3) bosom (4) many minor diameter steel ropes (2) are set, the spacing between the major diameter steel rope (1) is greater than the spacing between the minor diameter steel rope (2).
2, a kind of steel cable core conveying belt, it is characterized in that: the major diameter steel rope (1) that 21-27 root diameter 7.5-8.5mm respectively is set in the inner both sides of load-transfer device (3) (5), the minor diameter steel rope (2) of 31-37 root diameter 4.0-6.0mm is set at load-transfer device (3) bosom (4), spacing between the major diameter steel rope (1) is 14-16mm, and the spacing between the minor diameter steel rope (2) is 10-12mm.
3, a kind of steel cable core conveying belt, it is characterized in that: the major diameter steel rope (1) that 24 diameter 8.1mm respectively are set in the inner both sides of load-transfer device (3) (5), the minor diameter steel rope (2) of 34 diameter 6.0mm is set at load-transfer device (3) bosom (4), spacing between the major diameter steel rope (1) is 15mm, and the spacing between the minor diameter steel rope (2) is 12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910061050XA CN101497397A (en) | 2009-03-06 | 2009-03-06 | Arrangement method of cable wire inside cable wire core conveying belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200910061050XA CN101497397A (en) | 2009-03-06 | 2009-03-06 | Arrangement method of cable wire inside cable wire core conveying belt |
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| CN101497397A true CN101497397A (en) | 2009-08-05 |
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| CNA200910061050XA Pending CN101497397A (en) | 2009-03-06 | 2009-03-06 | Arrangement method of cable wire inside cable wire core conveying belt |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103619734A (en) * | 2011-06-08 | 2014-03-05 | 蒂森克虏伯资源科技有限公司 | Conveyor belt system and conveyor belt |
-
2009
- 2009-03-06 CN CNA200910061050XA patent/CN101497397A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103619734A (en) * | 2011-06-08 | 2014-03-05 | 蒂森克虏伯资源科技有限公司 | Conveyor belt system and conveyor belt |
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Application publication date: 20090805 |