CN107956176A - A kind of preparation method of the rope of asymmetric display pulling force - Google Patents
A kind of preparation method of the rope of asymmetric display pulling force Download PDFInfo
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- CN107956176A CN107956176A CN201711250653.5A CN201711250653A CN107956176A CN 107956176 A CN107956176 A CN 107956176A CN 201711250653 A CN201711250653 A CN 201711250653A CN 107956176 A CN107956176 A CN 107956176A
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- pulling force
- line
- rope
- clad
- display
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
- D07B1/145—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising elements for indicating or detecting the rope or cable status
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
- D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
Abstract
The present invention relates to rope technique field, and in particular to a kind of preparation method of the rope of asymmetric display pulling force.The preparation method of the rope includes selection rope main body, sets clad outside rope main body, selected reference line and sets zero pulling force index line on clad, transparent display layer is fixed outside clad and a plurality of pulling force index line is set on display layer.For rope prepared by this method compared with conventional rope, the size of pulling force can be shown by having, convenient for production, it is simple and reliable the advantages that.Predetermined pull can easily be applied by not having to carrying precision instrument during use, save manpower and materials, while can also avoid losing in construction the precision instrument of test pulling force.
Description
Technical field
The present invention relates to rope technique field, and in particular to a kind of preparation method of the rope of asymmetric display pulling force.
Background technology
Rope is common article in daily life and projects.In rope in actual use, in some applications
Field, generally requires to apply rope predetermined tension force.For example, in textile mills, whether workshop building or textile mills
In practical application, it is related to many places needed using rope.In some occasions, it is necessary to apply certain predetermined tension to rope
So that rope is in tensioning state.And predetermined tension according to setting value sometimes for applying, it is impossible to arbitrarily apply.Therefore, usually
Need, when applying predetermined tension to rope, to measure pre-tension using precision instrument.But some occasions, it has not been convenient to make
With precision instrument, moreover precision instrument is also costly, virtually adds entreprise cost.For another example, in rural area, electric power
Electric wire is fixed on the top of electric wire stake and realizes long-distance sand transport by conveying often by spaced electric wire stake.And
In the installation process of electric wire stake, generally require to set the drag-line with certain pulling force and hold electric wire stake and fall to avoid electric wire stake
Under.During this, the pulling force of the measurement drag-line such as instrument of precision is often required to use to correspond to actual needs.However, these
Often volume is larger or not Portable belt for accurate instrument.For example, worker, when using wireline operation, operating environment is probably mountain
The positions such as slope, high-altitude.In these local operations, if the equipment entrained by workpeople can be reduced to the greatest extent, work can be greatly reduced
The burden of people, saves muscle power.Thus, when using rope, how predetermined tension is applied to rope, but do not carry pulling force inspection
The problem of measurement equipment is a long-standing problem workpeople.
The content of the invention
For the prior art there are above-mentioned technical problem, the present invention provides a kind of rope and its system of asymmetric display pulling force
Preparation Method, the size of pulling force is directly displayed by observing the elongation to rope during rope application pulling force.
The present invention to achieve the above object and use technical solution be：A kind of rope of asymmetric display pulling force, including
Rope main body, clad and display layer；It is characterized in that：Rope main body is coated with clad, and clad is provided outside one
The display layer of measured length；Relative displacement does not occur between clad and rope main body；Close to one on the length direction of display layer
Lateral edges position is provided with fixed base, fixes display layer and clad in fixed base position, it is not occurred overall
Relative displacement；Relative displacement does not occur between clad and rope main body, clad can be with fixed base with the aobvious of outer portion
Show that relative displacement occurs for layer；Using fixed base as directrix on display layer, to away from fixed base length direction on it is another
Lateral edges direction, the first pulling force being disposed with around display layer show that line, the second pulling force show that line, the 3rd pulling force are shown
Line, the 4th pulling force show line, and the 4th pulling force shows that line is another side of the remote fixed base on display layer length direction
The edge line of edge；Using fixed base as directrix on clad, another lateral edges on the length direction away from fixed base
Direction is provided with zero pulling force and shows line；Zero pulling force shows that line is located between fixed base and the first pulling force display line；Display layer is
Transparent material is made, in order to observe the position that pulling force shows line.
Preferably, transparent protective layer can also be set outside display layer, and to protect a plurality of pulling force to show, line is not worn away.
Preferably, clad is made of rubber.Because the mode that twisting is usually used in steel wire rope twists with the fingers more steel wires
Conjunction forms, thus the surface of rope main body is typically rough, is unfavorable for the mark that pulling force shows line.Therefore, in rope
The outside of main body sets clad（Preferably rubber material is made）, and make it that relative displacement not occur with rope main body, with profit
Show wire tag on clad in pulling force.Certainly, if the surface of rope main body can conveniently set up pulling force and show line, then
Clad is can be omitted, directly display layer is arranged on outside rope main body, and correspondingly adjusts the rope of asymmetric display pulling force
Structure and following definite pulling force show corresponding Terminology in the method for line position, but essential idea is constant.
Preferably, the 4th pulling force show line, the 3rd pulling force show line, the second pulling force show line, the first pulling force show line with
And zero pulling force show line be different colours, in order to intuitively distinguish pulling force size；It is further preferred that the 4th pulling force shows that line is
Black, the 3rd pulling force show line as red, and the second pulling force shows line to be orange, and the first pulling force shows that line is yellow, and zero pulling force is shown
Timberline is blueness.
Preferably, the 4th pulling force shows that line shows line for cord break strength, and the 3rd pulling force shows that line is 80% cord break
Strength shows line, and the second pulling force shows that line shows line for 50% cord break strength, and the first pulling force shows that line is 20% cord break
Strength shows line, and zero pulling force shows that line is display line when pulling force is zero.That is, in the asymmetric rope for showing pulling force in pulling force
Under effect, when zero pulling force display line is subjected to displacement with the effect of pulling force in rope lengths direction and shows line with the first pulling force
During coincidence, then it represents that the value of thrust born on the rope of asymmetric display pulling force is the first pulling force.And so on, when zero pulling force is shown
When timberline is subjected to displacement in rope lengths direction with the effect of pulling force and shows that line overlaps with the second pulling force, then it represents that non-right
Show that the value of thrust born on the rope of pulling force is referred to as the second pulling force；When zero pulling force shows line with the effect of pulling force and in rope
When length direction is subjected to displacement and shows that line overlaps with the 3rd pulling force, then it represents that the drawing born on the rope of asymmetric display pulling force
Force value is the 3rd pulling force；When zero pulling force display line is subjected to displacement with the effect of pulling force in rope lengths direction and is drawn with the 4th
When power shows that line overlaps, then it represents that the value of thrust born on the rope of asymmetric display pulling force is the 4th pulling force.
Preferably, can be selected to set a plurality of pulling force for representing different pulling force sizes to show line according to actual needs, more
Preferably, a plurality of pulling force is shown that line is provided directly as the form of graduated scale, easy to directly read the pulling force born on rope.
It is following to show that the position of the zero pulling force display line on the position and clad of line passes through for each bar pulling force on display layer
Method determines, comprises the following steps that：
1）The rope main body and clad for the rope for being used to prepare asymmetric display pulling force are chosen, rope main body is coated with cladding
Layer；Intercepted into the different test rope of 15-20 segment length；
2）The test rope of 4 equal lengths is taken under each length, test rope is stretched in setting using universal testing machine
Extension test is carried out under speed, until testing fracture of rope；Tensile load is recorded with testing the relation curve and data of rope length degree；
3) using mathematical analysis software to step 2）Obtained tensile load and the relation curve and data of test rope length degree carry out
Analysis calculates, and obtains tensile load-extension curve of test rope, and the mathematics for fitting tensile load-elongation relation is public
Formula；
4）The first pulling force F of rope will be tested1, the second pulling force F2, the 3rd pulling force F3, the 4th pulling force F4Step 3) is substituted into respectively to obtain
Tensile load-elongation relation mathematical formulae in, obtain the elongation X of the test rope of corresponding pulling force1、X2、X3、X4；
5）The display layer of certain length is chosen, fixed base and the 4th pulling force show that the distance between line is L, and the 4th pulling force is shown
Line and zero pulling force show that the distance of line is L4, the 3rd pulling force show that the distance of line and zero pulling force display line is L3, the second pulling force shows
Line and zero pulling force show that the distance of line is L2, the first pulling force show that the distance of line and zero pulling force display line is L1；According to（L-L4）×
（1+X4）=L, i.e., in the rope of asymmetric display pulling force, zero pulling force shows region between line and fixed base in the 4th pulling force
Under the action of stretch after length should be equal to fixed base and the 4th pulling force and show the distance between line L, obtain L through reckoning4=
(LX4/(1+X4));Similarly, L3=(LX3/(1+X3)); L2=(LX2/(1+X2)), L1=(LX1/(1+X1))。
Further, the 4th pulling force is shown that line selection is selected as black, the 3rd pulling force shows that line selection is selected as red, the second pulling force
It is orange to show that line selection is selected as, the first pulling force shows that line selection is selected as yellow, and zero pulling force shows line for blueness.In asymmetric display pulling force
Rope when non-stretched, zero pulling force on clad shows that line be located between the first pulling force display line and fixed base；When non-
Zero pulling force of the rope of symmetrical display pulling force in a stretched state on the first pulling force display line and clad of yellow shows line weight
During conjunction, the pulling force for representing rope is the first pulling force F1;Similarly, when the rope of asymmetric display pulling force is orange in a stretched state
When second pulling force shows that line shows that line overlaps with zero pulling force on clad, the pulling force for representing rope is the second pulling force F2；When non-
Zero pulling force of the rope of symmetrical display pulling force in a stretched state on the 3rd pulling force display line and clad of red shows line weight
During conjunction, the pulling force for representing rope is the 3rd pulling force F3.If it is safe load value of thrust to select the 3rd pulling force, the 4th pulling force is rope
Ultimate strength, then when asymmetric display pulling force rope in a stretched state, zero pulling force on clad shows line positioned at the
When three pulling force are shown between line and the 4th pulling force display line, represent that rope is on the verge of to be broken, it is impossible to apply the drawing of bigger to rope again
Power.
Further, there is provided a kind of preparation method of the rope of asymmetric display pulling force, includes the following steps：
1）Rope main body is selected, clad is set outside rope main body, makes to occur between clad and rope main body opposite
Displacement；
2）The selected reference line on clad, while the transparent display layer of selected certain length, and in the length side of display layer
One side edge position is provided with fixed base upwards；The opposite side of remote fixed base on the length direction of display layer
The edge line at edge shows line for the 4th pulling force, and the 4th pulling force shows that the distance of line and datum line is L；
3）Zero pulling force delimited on clad and shows line, the first pulling force delimited successively on display layer and shows that line, the second pulling force are shown
Timberline, the 3rd pulling force show line；
4) display layer is arranged on outside clad, the fixed base of display layer is overlapped with the datum line on clad, and solid
Determine baseline position to fix display layer and clad, make it that overall relative displacement not occur, but clad can be with fixed base
With the display layer of outer portion relative displacement occurs for line；The rope of asymmetric display pulling force is obtained therefrom.
It is highly preferred that can also set transparent protective layer outside display layer, to protect a plurality of pulling force to show, line is not ground
Fall.
Beneficial effects of the present invention：
The beneficial effects of the invention are as follows：The present invention provides a kind of rope of asymmetric display pulling force and preparation method thereof.This energy
Enough during tubing sections, predetermined tension force can be applied to rope without using pull test instrument.It is simple and reliable, reduce
Worker carries in operation the equipment such as the tension tester of precision, has saved muscle power.For example, drawn when by this asymmetric display
When the rope of power is used as the drag-line of electric wire stake, the first pulling force is set as required predetermined pull value, during construction operation, to this
The rope of asymmetric display pulling force carries out application pulling force, when the first pulling force shows that line shows that line overlaps with zero pulling force on clad
When, you can determine that to the pulling force that drag-line applies be predetermined pull value.This greatly facilitates the construction operation of worker, and does not have to
Accurate tension tester is carried, tension tester is lost without when worrying to construct on building site, avoids property loss.Together
Reason, sets the second pulling force to show that line, the 3rd pulling force show line etc., facilitates worker to select required application according to actual needs
Predetermined tension.It is highly preferred that a plurality of pulling force is shown that line is provided directly as the form of graduated scale, easy to directly read institute on rope
The pulling force born.Using asymmetric setting, the material materials of display layer can also be saved, further reduces the cost and shortens aobvious
Show the length that layer is set, in order to avoid bring inconvenience.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the rope of the asymmetric display pulling force of the present invention.
Reference numeral：
1st, rope main body；2nd, clad；3rd, display layer；A, zero pulling force shows line；B, the first pulling force shows line；C, the second pulling force is shown
Timberline；D, the 3rd pulling force shows line；E, the 4th pulling force shows line；F, fixed base.
Embodiment
Below in conjunction with specific embodiment and attached drawing, the present invention is described in detail.
A kind of rope of asymmetric display pulling force, including rope main body 1, clad 2 and display layer 3；It is characterized in that：
Rope main body 1 is coated with clad 2, and clad 2 is provided outside the display layer 3 of certain length；Clad 2 and rope main body 1
Between relative displacement does not occur；Close one side edge position on the length direction of display layer 3 is provided with fixed base F,
Display layer 3 and clad 2 are fixed in fixed base F positions, make it that overall relative displacement not occur；Clad 2 and rope master
Relative displacement does not occur between body 1, with fixed base F with the display layer 3 of outer portion relative displacement can occur for clad 2；
Using fixed base F as directrix on display layer 3, the opposite side edge direction on the length direction away from fixed base F, sets successively
The first pulling force being equipped with around display layer 3 shows that line B, the second pulling force show that line C, the 3rd pulling force show that line D, the 4th pulling force are shown
Line E, the 4th pulling force show that line E is the edge line of another lateral edges of the remote fixed base on 3 length direction of display layer；
Using fixed base as directrix on clad, the opposite side edge direction on the length direction away from fixed base is provided with zero drawing
Power shows line A；Zero pulling force shows that line A is located between fixed base F and the first pulling force display line B；Display layer 3 is transparent material system
Into in order to observe the position that pulling force shows line.
Preferably, clad 2 is made of rubber.Because the mode that twisting is usually used in steel wire rope twists with the fingers more steel wires
Conjunction forms, thus the surface of rope main body 1 is typically rough, is unfavorable for the mark that pulling force shows line.Therefore, in rope
The outside of main body 1 sets clad 2（Preferably rubber material is made）, and make it that relative displacement not occur with rope main body 1, with
Show wire tag on clad 2 beneficial to pulling force.Certainly, if the surface of rope main body 1 can conveniently set up pulling force and show line,
Clad 2 is so can be omitted, directly display layer 3 is arranged on outside rope main body 1, and correspondingly adjusts asymmetric display pulling force
Rope structure and following definite pulling force show corresponding Terminology in the method for line position, but essential idea is constant
's.
Preferably, the 4th pulling force shows that line E, the 3rd pulling force show that line D, the second pulling force show that line C, the first pulling force show line
B and zero pulling force show that line A is different colours, in order to intuitively distinguish pulling force size；It is further preferred that the 4th pulling force is shown
Line E is black, and the 3rd pulling force shows line D as red, and the second pulling force shows line C to be orange, and the first pulling force shows that line B is yellow,
Zero pulling force shows line A for blueness.
Preferably, the 4th pulling force shows that line E shows line for cord break strength, and the 3rd pulling force shows that line D breaks for 80% rope
Split strength and show line, the second pulling force shows that line C shows line for 50% cord break strength, and the first pulling force shows that line B is 20% rope
Ultimate strength shows line, and zero pulling force shows that line A is display line when pulling force is zero.That is, exist in the rope of asymmetric display pulling force
Under the action of pulling force, when zero pulling force display line A is subjected to displacement with the effect of pulling force in rope lengths direction and is drawn with first
When power shows that line B is overlapped, then it represents that the value of thrust born on the rope of asymmetric display pulling force is the first pulling force.And so on,
When zero pulling force display line A is subjected to displacement with the effect of pulling force in rope lengths direction and shows that line C is overlapped with the second pulling force
When, then it represents that the value of thrust born on the rope of asymmetric display pulling force is the second pulling force；When zero pulling force shows line A with pulling force
Effect and be subjected to displacement in rope lengths direction and with the 3rd pulling force show line D overlap when, then it represents that asymmetric display pulling force
Rope on the value of thrust that bears be the 3rd pulling force；When zero pulling force shows line A with the effect of pulling force and in rope lengths direction
When being subjected to displacement and showing that line E is overlapped with the 4th pulling force, then it represents that the value of thrust that bears is on the asymmetric rope for showing pulling force
4th pulling force.
Preferably, can be selected to set a plurality of pulling force for representing different pulling force sizes to show line according to actual needs, more
Preferably, a plurality of pulling force is shown that line is provided directly as the form of graduated scale, easy to directly read the pulling force born on rope.
Each bar pulling force shows that zero pulling force on the position and clad 2 of line shows that the position of line AA passes through on display layer 3
Following methods determine, comprise the following steps that：
1）The rope main body 1 and clad 2 for the rope for being used to prepare asymmetric display pulling force are chosen, rope main body 1 is coated with
Clad 2；Intercepted into the different test rope of 15-20 segment length；
2）The test rope of 4 equal lengths is taken under each length, test rope is stretched in setting using universal testing machine
Extension test is carried out under speed, until testing fracture of rope；Tensile load is recorded with testing the relation curve and data of rope length degree；
3) using mathematical analysis software to step 2）Obtained tensile load and the relation curve and data of test rope length degree carry out
Analysis calculates, and obtains tensile load-extension curve of test rope, and the mathematics for fitting tensile load-elongation relation is public
Formula；
4）The first pulling force F of rope will be tested1, the second pulling force F2, the 3rd pulling force F3, the 4th pulling force F4Step 3) is substituted into respectively to obtain
Tensile load-elongation relation mathematical formulae in, obtain the elongation X of the test rope of corresponding pulling force1、X2、X3、X4；
5）The display layer 3 of certain length is chosen, fixed base F and the 4th pulling force show that the distance between line E is L/2, and the 4th draws
Power shows that line E and zero pulling force show that the distance of line A is L4, the 3rd pulling force show that the distance of line D and zero pulling force display line A are L3,
Two pulling force show that line C and zero pulling force show that the distance of line A is L2, the first pulling force show that the distance of line B and zero pulling force display line A are
L1；According to（L-L4）×（1+X4）=L, i.e., in the rope of asymmetric display pulling force, zero pulling force is shown between line A and fixed base
Length of the region after stretching under the action of the 4th pulling force should be equal to the distance L between fixed base and the 4th pulling force display line,
L is obtained through calculating4=(LX4/(1+X4));Similarly, L3=(LX3/(1+X3)); L2=(LX2/(1+X2)), L1=(LX1/(1+X1))。
Further, the 4th pulling force is shown into line E selected as black, the 3rd pulling force shows that line D selected as is red, and second draws
Power shows that line C selected as is orange, and the first pulling force shows line B selected as yellow, and zero pulling force shows line A for blueness.Asymmetric aobvious
Show the rope of pulling force when non-stretched, zero pulling force on clad 2 shows that line A be located at the first pulling force and shows line B and fixed base F
Between；When rope the first pulling force display line B of yellow and zero drawing on clad 2 in a stretched state of asymmetric display pulling force
When power shows that line A is overlapped, the pulling force for representing rope is the first pulling force F1;Similarly, when the rope of asymmetric display pulling force is stretching
When the second orange pulling force shows that line C shows that line A is overlapped with zero pulling force on clad 2 under state, the pulling force for representing rope is
Second pulling force F2；When asymmetric display pulling force rope in a stretched state red the 3rd pulling force show line D with clad 2
Zero pulling force when showing that line A is overlapped, the pulling force for representing rope is the 3rd pulling force F3.If it is safe load pulling force to select the 3rd pulling force
Value, the 4th pulling force be rope ultimate strength, then when it is asymmetric display pulling force rope in a stretched state, on clad 2
When zero pulling force shows that line A is located between the 3rd pulling force display line D and the 4th pulling force display line E, represent that rope is on the verge of to be broken, it is impossible to
Apply the pulling force of bigger to rope again.
Further, there is provided a kind of preparation method of the rope of asymmetric display pulling force, includes the following steps：
1）Rope main body 1 is selected, clad 2 is set outside rope main body 1, makes to occur between clad 2 and rope main body 1
Relative displacement；
2）The selected reference line on clad, while the transparent display layer of selected certain length, and in the length side of display layer
One side edge position is provided with fixed base upwards；The opposite side of remote fixed base on the length direction of display layer
The edge line at edge shows line for the 4th pulling force, and the 4th pulling force shows that the distance of line and datum line is L；
3）Zero pulling force delimited on clad 2 and shows line A, the first pulling force delimited successively on display layer 3 and shows that line B, second are drawn
Power shows that line C, the 3rd pulling force show line D；
4) display layer 3 is arranged on outside clad 2, the fixed base F of display layer 3 is overlapped with the datum line on clad 2, and
Display layer 3 and clad 2 are fixed in fixed base F positions, make it that overall relative displacement not occur, but clad 2 can
Relative displacement is occurred with the display layer 3 of outer portion with fixed base F；The rope of asymmetric display pulling force is obtained therefrom.
It is highly preferred that can also set transparent protective layer outside display layer 3, to protect a plurality of pulling force to show, line is not ground
Fall.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of scope is protected, although being explained with reference to preferred embodiment to the present invention, those of ordinary skill in the art should
Work as understanding, can be to technical scheme technical scheme is modified or replaced equivalently, without departing from the reality of technical solution of the present invention
Matter and scope.
Claims (5)
1. a kind of preparation method of the rope of asymmetric display pulling force, includes the following steps：
1）Rope main body is selected, clad is set outside rope main body, makes to occur between clad and rope main body opposite
Displacement；
2）The selected reference line on clad, while the transparent display layer of selected certain length, and in the length side of display layer
One side edge position is provided with fixed base upwards；The opposite side of remote fixed base on the length direction of display layer
The edge line at edge shows line for the 4th pulling force, and the 4th pulling force shows that the distance of line and datum line is L；
3）Zero pulling force delimited on clad and shows line, the first pulling force delimited successively on display layer and shows that line, the second pulling force are shown
Timberline, the 3rd pulling force show line；
4) display layer is arranged on outside clad, the fixed base of display layer is overlapped with the datum line on clad, and solid
Determine baseline position to fix display layer and clad, make it that overall relative displacement not occur, but clad can be with fixed base
With the display layer of outer portion relative displacement occurs for line；The rope of asymmetric display pulling force is obtained therefrom.
2. the preparation method of the rope of asymmetric display pulling force as claimed in claim 1, it is characterised in that：Set outside the display layer
Transparent protective layer.
3. the preparation method of the rope of asymmetric display pulling force as claimed in claim 1, it is characterised in that：The clad uses rubber
Glue is made.
4. the preparation method of the rope of asymmetric display pulling force as claimed in claim 1, it is characterised in that：4th pulling force is shown
Line is black, and the 3rd pulling force shows line as red, and second pulling force shows line to be orange, and first pulling force shows line
For yellow, zero pulling force shows line for blueness.
5. the preparation method of the rope of the asymmetric display pulling force as any one of claim 1-4, it is characterised in that：Institute
State each bar pulling force on display layer and show that zero pulling force on the position and clad of line shows that the position of line is true by the following method
It is fixed, comprise the following steps that：
1）The rope main body and clad for the rope for being used to prepare asymmetric display pulling force are chosen, rope main body is coated with cladding
Layer；Intercepted into the different test rope of 15-20 segment length；
2）The test rope of 4 equal lengths is taken under each length, test rope is stretched in setting using universal testing machine
Extension test is carried out under speed, until testing fracture of rope；Tensile load is recorded with testing the relation curve and data of rope length degree；
3) using mathematical analysis software to step 2）Obtained tensile load and the relation curve and data of test rope length degree carry out
Analysis calculates, and obtains tensile load-extension curve of test rope, and the mathematics for fitting tensile load-elongation relation is public
Formula；
4）The first pulling force F of rope will be tested1, the second pulling force F2, the 3rd pulling force F3, the 4th pulling force F4Substitute into what step 3) obtained respectively
In the mathematical formulae of tensile load-elongation relation, the elongation X of the test rope of corresponding pulling force is obtained1、X2、X3、X4；
5）The display layer of certain length is chosen, fixed base and the 4th pulling force show that the distance between line is L, and the 4th pulling force is shown
Line and zero pulling force show that the distance of line is L4, the 3rd pulling force show that the distance of line and zero pulling force display line is L3, the second pulling force shows
Line and zero pulling force show that the distance of line is L2, the first pulling force show that the distance of line and zero pulling force display line is L1；According to（L-L4）×
（1+X4）=L, i.e., in the rope of asymmetric display pulling force, zero pulling force shows region between line and fixed base in the 4th pulling force
Under the action of stretch after length should be equal to fixed base and the 4th pulling force and show the distance between line L, obtain L through reckoning4=
(LX4/(1+X4));Similarly, L3=(LX3/(1+X3)); L2=(LX2/(1+X2)), L1=(LX1/(1+X1))。
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| CN1262357A (en) * | 1999-01-22 | 2000-08-09 | 因温特奥股份公司 | Detector for sleeve damage of synthetic fibre rope |
| KR20160082618A (en) * | 2014-12-26 | 2016-07-08 | 대광기업 주식회사 | Apparatus for and Method of Making Cable Raid Grommet |
| WO2016142425A1 (en) * | 2015-03-10 | 2016-09-15 | Bexco N.V. | Multiple synthetic material mooring rope and production process |
| CN106087500A (en) * | 2016-08-03 | 2016-11-09 | 青岛华凯海洋科技有限公司 | A kind of rope pointing out degree of fatigue |
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2017
- 2017-12-01 CN CN201711250653.5A patent/CN107956176B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1134484A (en) * | 1995-03-06 | 1996-10-30 | 英万蒂奥股份公司 | Equipment for recognising when synthetic fibre |
| CN1262357A (en) * | 1999-01-22 | 2000-08-09 | 因温特奥股份公司 | Detector for sleeve damage of synthetic fibre rope |
| KR20160082618A (en) * | 2014-12-26 | 2016-07-08 | 대광기업 주식회사 | Apparatus for and Method of Making Cable Raid Grommet |
| WO2016142425A1 (en) * | 2015-03-10 | 2016-09-15 | Bexco N.V. | Multiple synthetic material mooring rope and production process |
| CN106087500A (en) * | 2016-08-03 | 2016-11-09 | 青岛华凯海洋科技有限公司 | A kind of rope pointing out degree of fatigue |
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| CN107956176B (en) | 2019-10-01 |
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