CN108118546A - A kind of rope of asymmetric instruction pulling force - Google Patents
A kind of rope of asymmetric instruction pulling force Download PDFInfo
- Publication number
- CN108118546A CN108118546A CN201810071338.4A CN201810071338A CN108118546A CN 108118546 A CN108118546 A CN 108118546A CN 201810071338 A CN201810071338 A CN 201810071338A CN 108118546 A CN108118546 A CN 108118546A
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- China
- Prior art keywords
- pulling force
- rope
- index line
- clad
- force index
- 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.)
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Classifications
-
- 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 fields, and in particular to a kind of rope of asymmetric instruction pulling force.The rope includes the rope main body, clad and the marker that set gradually；Relative displacement does not occur between clad and rope main body；One side edge position is provided with fixed base on the length direction of marker, marker and clad are fixed in fixed base position, make it that whole relative displacement not occur；With fixed base with the marker of outer portion relative displacement can occur for clad；Using fixed base as directrix on clad, the opposite side edge direction on the length direction away from fixed base is disposed with a plurality of pulling force index line around clad.For the rope compared with conventional rope, the size of pulling force can be indicated 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 fields, and in particular to a kind of rope of asymmetric instruction 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.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
It needs, 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 accurate instrument 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 may be 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.As a result, 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 instruction pulling force
Preparation Method directly indicates the size of pulling force by observing the elongation to rope during rope application pulling force.
The present invention to achieve the above object and the technical solution adopted is that：A kind of rope of asymmetric instruction pulling force, including
Rope main body, clad and marker；It is characterized in that：Rope main body is coated with clad, and clad is provided outside one
The marker of measured length；Relative displacement does not occur between clad and rope main body；Close to one on the length direction of marker
Lateral edges position is provided with fixed base, fixes marker and clad in fixed base position, it is made not occur whole
Relative displacement；Relative displacement does not occur between clad and rope main body, clad can be with fixed base with the finger of outer portion
Show that relative displacement occurs for layer；It is another on the length direction away from fixed base using fixed base as directrix on clad
Lateral edges direction is disposed with the 4th pulling force index line, the 3rd pulling force index line, the second pulling force instruction around clad
Line, the first pulling force index line and zero pulling force index line；Another side on the length direction of zero pulling force index line and marker
The edge line of edge is concordant.
Preferably, marker is made of transparent material, in order to observe the position of pulling force index line.
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
It closes, thus the surface of rope main body is typically rough, is unfavorable for the mark of pulling force index 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
Indicate wire tag on clad in pulling force.Certainly, if the surface of rope main body can conveniently set up pulling force index line, then
Clad is can be omitted, directly marker is arranged on outside rope main body, and correspondingly adjusts the rope of asymmetric instruction pulling force
Structure and following definite pulling force instruction line position method in corresponding Terminology, but essential idea is constant.
Preferably, the 4th pulling force index line, the 3rd pulling force index line, the second pulling force index line, the first pulling force index line with
And zero pulling force index line be different colours, in order to intuitively distinguish pulling force size；It is further preferred that the 4th pulling force index line is
Black, the 3rd pulling force index line are red, and the second pulling force index line is orange, and the first pulling force index line is yellow, and zero pulling force refers to
Timberline is blueness.
Preferably, the 4th pulling force index line is cord break strength index line, and the 3rd pulling force index line is 80% cord break
Strength index line, the second pulling force index line are 50% cord break strength index line, and the first pulling force index line is 20% cord break
Strength index line, zero pulling force index line are index line when pulling force is zero.
Preferably, can select to set a plurality of pulling force index line for representing different pulling force sizes according to actual needs, more
Preferably, a plurality of pulling force index line is provided directly as to the form of graduated scale, convenient for directly reading the pulling force born on rope.
The position of each pulling force index line determines by the following method on clad, is as follows：
1）The rope main body and clad for the rope for being used to prepare asymmetric instruction 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）Choose certain length marker, the distance between fixed base and zero pulling force index line be L, the 4th pulling force index line
Distance with zero pulling force index line is L4, the 3rd pulling force index line and zero pulling force index line distance be L3, the second pulling force index line
Distance with zero pulling force index line is L2, the first pulling force index line and zero pulling force index line distance be L1；According to（L-L4）×（1
+X4）=L, i.e., it is asymmetric instruction pulling force rope in, the region between the 4th pulling force index line and fixed base is in the 4th pulling force
Under the action of stretch after length should be equal to the distance between fixed base and zero pulling force index line L, through reckoning obtain L4=(LX4/
(1+X4));Similarly, L3=(LX3/(1+X3)); L2=(LX2/(1+X2)), L1=(LX1/(1+X1))。
Further, by the 4th pulling force index line selected as black, the 3rd pulling force index line selected as is red, the second pulling force
Index line selected as is orange, the first pulling force index line selected as yellow, and zero pulling force index line is blueness.In asymmetric instruction pulling force
Rope when non-stretched, the side of another lateral edges of the length direction of the separate fixed base of zero pulling force index line and marker
Edge line is concordant；When asymmetric instruction pulling force rope the first pulling force index line of yellow and marker in a stretched state it is separate
When the edge line of another lateral edges of the length direction of fixed base is concordant, the pulling force for representing rope is the first pulling force F1;Similarly,
When the rope separate fixed base of orange the second pulling force index line and marker in a stretched state of asymmetric instruction pulling force
Length direction another lateral edges edge line it is concordant when, represent rope pulling force be the second pulling force F2；When asymmetric instruction
The rope of the pulling force length direction of the separate fixed base of red the 3rd pulling force index line and marker in a stretched state
When the edge line of another lateral edges is concordant, the pulling force for representing rope is the 3rd pulling force F3.If it is safe load to select the 3rd pulling force
Value of thrust, the 4th pulling force be rope ultimate strength, then when it is asymmetric instruction pulling force rope in a stretched state, marker
The edge line of another lateral edges of length direction away from fixed base is located at the 3rd pulling force index line and the 4th pulling force index line
Between when, represent rope be on the verge of to be broken, it is impossible to again to rope apply bigger pulling force.
Further, a kind of preparation method of the rope of asymmetric instruction pulling force is provided, is included 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 marker of selected certain length, and leaned on the length direction of display layer
Nearly one side edge position is provided with fixed base；On the length direction of clad and toward away from fixed base another lateral edges
Distance of the direction apart from datum line be zero pulling force index line of L places delimitation；
3）Between zero pulling force index line and datum line, the first pulling force index line, the second pulling force index line, the 3rd drawing delimited successively
Power index line and the 4th pulling force index line；
4) marker is arranged on outside clad, the fixed base of marker is made to be overlapped with the datum line on clad, and solid
Determine baseline position to fix marker and clad, make it that whole relative displacement not occur, but clad can be with fixed base
With the marker of outer portion relative displacement occurs for line；Another lateral edges of separate fixed base on the length direction of marker
Edge line is concordant with zero pulling force index line, obtains the rope of asymmetric instruction pulling force therefrom.
Beneficial effects of the present invention：
The beneficial effects of the invention are as follows：The present invention provides a kind of ropes of asymmetric instruction pulling force and preparation method thereof.This energy
Enough during tubing sections, predetermined tension can be applied to rope without using pull test instrument.It is simple and reliable, it reduces
Worker carries in operation the equipment such as accurate tension tester, has saved muscle power.For example, it is drawn when by this asymmetric instruction
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 instruction pulling force carries out application pulling force, when the first pulling force index line is concordant with the edge line of marker, you can
Determine that the pulling force that drag-line applies be predetermined pull value.This greatly facilitates the construction operation of worker, and without carrying essence
Tension tester without when worrying to construct on building site is lost, avoids property loss by close tension tester.Similarly, set
Second pulling force index line, the 3rd pulling force index line etc. facilitate worker according to actual needs and select required predetermined applied
Power.It is highly preferred that a plurality of pulling force index line is provided directly as to the form of graduated scale, convenient for directly reading what is born on rope
Pulling force.Using asymmetric setting, the material materials of display layer can also be saved, further reduces the cost and shortens display layer and set
The length put, in order to avoid bring inconvenience.
Description of the drawings
Fig. 1 is the overall structure diagram of the rope of the asymmetric instruction pulling force of the present invention.
Reference numeral：
1st, rope main body；2nd, clad；3rd, marker；A, zero pulling force index line；B, the first pulling force index line；C, the second pulling force refers to
Timberline；D, the 3rd pulling force index line；E, the 4th pulling force index line；F, fixed base.
Specific embodiment
Below in conjunction with specific embodiment and attached drawing, the present invention is described in detail.
A kind of rope of asymmetric instruction pulling force, including rope main body 1, clad 2 and marker 3；Its feature exists
In：Rope main body 1 is coated with clad, and clad is provided outside the marker 3 of certain length；Clad and rope main body 1
Between relative displacement does not occur；One side edge position is provided with fixed base F on the length direction of marker, in fixation
Baseline position fixes marker and clad, makes it that whole relative displacement not occur；Between clad and rope main body not
With fixed base with the marker of outer portion relative displacement can occur for generation relative displacement, clad；With solid on clad
Baseline is determined for directrix, and the opposite side edge direction on the length direction away from fixed base is disposed with around clad
The 4th pulling force index line E, the 3rd pulling force index line D, the second pulling force index line C, the first pulling force index line B and zero pulling force refer to
Timberline A；Zero pulling force index line is concordant with the edge line of another lateral edges on the length direction of marker.
Preferably, marker is made of transparent material, in order to observe the position of pulling force index 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
It closes, thus the surface of rope main body 1 is typically rough, is unfavorable for the mark of pulling force index 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
Indicate wire tag on clad 2 beneficial to pulling force.Certainly, if the surface of rope main body 1 can conveniently set up pulling force index line,
Clad 2 is so can be omitted, directly marker 3 is arranged on outside rope main body 1, and correspondingly adjusts asymmetric instruction pulling force
The structure of rope and the method for following definite pulling force instruction line position in corresponding Terminology, but essential idea is constant
's.
Preferably, the 4th pulling force index line E, the 3rd pulling force index line D, the second pulling force index line C, the first pulling force index line
B and zero pulling force index line A is different colours, in order to intuitively distinguish pulling force size；It is further preferred that the 4th pulling force indicates
Line E is black, and the 3rd pulling force index line D is red, and the second pulling force index line C is orange, and the first pulling force index line B is yellow,
Zero pulling force index line A is blueness.
Preferably, the 4th pulling force index line E is cord break strength index line, and the 3rd pulling force index line D breaks for 80% rope
Strength index line is split, the second pulling force index line C is 50% cord break strength index line, and the first pulling force index line B is 20% rope
Ultimate strength index line, zero pulling force index line A are index line when pulling force is zero.
Preferably, can select to set a plurality of pulling force index line for representing different pulling force sizes according to actual needs, more
Preferably, a plurality of pulling force index line is provided directly as to the form of graduated scale, convenient for directly reading the pulling force born on rope.
The position of each pulling force index line determines by the following method on clad, is as follows：
1）It chooses the rope main body 1 of rope for being used to prepare asymmetric instruction pulling force and clad 2, 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）Choose certain length marker, the distance between fixed base and zero pulling force index line be L, the 4th pulling force index line
Distance with zero pulling force index line is L4, the 3rd pulling force index line and zero pulling force index line distance be L3, the second pulling force index line
Distance with zero pulling force index line is L2, the first pulling force index line and zero pulling force index line distance be L1；According to（L-L4）×（1
+X4）=L, i.e., it is asymmetric instruction pulling force rope in, the region between the 4th pulling force index line and fixed base is in the 4th pulling force
Under the action of stretch after length should be equal to the distance between fixed base and zero pulling force index line L, through reckoning obtain L4=(LX4/
(1+X4));Similarly, L3=(LX3/(1+X3)); L2=(LX2/(1+X2)), L1=(LX1/(1+X1))。
Further, by the 4th pulling force index line selected as black, the 3rd pulling force index line selected as is red, the second pulling force
Index line selected as is orange, the first pulling force index line selected as yellow, and zero pulling force index line is blueness.In asymmetric instruction pulling force
Rope when non-stretched, the side of another lateral edges of the length direction of the separate fixed base of zero pulling force index line and marker
Edge line is concordant；When asymmetric instruction pulling force rope the first pulling force index line of yellow and marker in a stretched state it is separate
When the edge line of another lateral edges of the length direction of fixed base is concordant, the pulling force for representing rope is the first pulling force F1;Similarly,
When the rope separate fixed base of orange the second pulling force index line and marker in a stretched state of asymmetric instruction pulling force
Length direction another lateral edges edge line it is concordant when, represent rope pulling force be the second pulling force F2；When asymmetric instruction
The rope of the pulling force length direction of the separate fixed base of red the 3rd pulling force index line and marker in a stretched state
When the edge line of another lateral edges is concordant, the pulling force for representing rope is the 3rd pulling force F3.If it is safe load to select the 3rd pulling force
Value of thrust, the 4th pulling force be rope ultimate strength, then when it is asymmetric instruction pulling force rope in a stretched state, marker
The edge line of another lateral edges of length direction away from fixed base is located at the 3rd pulling force index line and the 4th pulling force index line
Between when, represent rope be on the verge of to be broken, it is impossible to again to rope apply bigger pulling force.
Further, a kind of preparation method of the rope of asymmetric instruction pulling force is provided, is included 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 marker of selected certain length, and leaned on the length direction of display layer
Nearly one side edge position is provided with fixed base；On the length direction of clad and toward away from fixed base another lateral edges
Distance of the direction apart from datum line be zero pulling force index line of L places delimitation；
3）Between zero pulling force index line and datum line, the first pulling force index line, the second pulling force index line, the 3rd drawing delimited successively
Power index line and the 4th pulling force index line；
4) marker is arranged on outside clad, the fixed base of marker is made to be overlapped with the datum line on clad, and solid
Determine baseline position to fix marker and clad, make it that whole relative displacement not occur, but clad can be with fixed base
With the marker of outer portion relative displacement occurs for line；Another lateral edges of separate fixed base on the length direction of marker
Edge line is concordant with zero pulling force index line, obtains the rope of asymmetric instruction pulling force therefrom.
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 in detail with reference to preferred embodiment to the present invention, those of ordinary skill in the art should
Work as understanding, technical scheme can be 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 rope of asymmetric instruction pulling force, including rope main body, clad and marker；It is characterized in that：It is described
Rope main body is coated with the clad, and the clad is provided outside the marker of certain length；The clad
Relative displacement does not occur between the rope main body；It is set on the length direction of the marker close to one side edge position
There is fixed base, the marker and the clad are fixed in the fixed base position, make it that whole phase not occur
To displacement；Relative displacement does not occur between the clad and the rope main body, the clad can be with the fixed base
With the marker of outer portion relative displacement occurs for line；Using fixed base as directrix on the clad, to away from fixed base
Length direction on opposite side edge direction, be disposed with around the clad the 4th pulling force index line, the 3rd draw
Power index line, the second pulling force index line, the first pulling force index line and zero pulling force index line；The zero pulling force index line with it is described
The edge line of another lateral edges on the length direction of marker is concordant.
2. the rope of asymmetric instruction pulling force as claimed in claim 1, it is characterised in that：Marker is made of transparent material.
3. the rope of asymmetric instruction pulling force as claimed in claim 1, it is characterised in that：Clad is made of rubber.
4. the rope of asymmetric instruction pulling force as claimed in claim 1, it is characterised in that：4th pulling force index line be black, the 3rd
Pulling force index line is red, and the second pulling force index line is orange, and the first pulling force index line is yellow, and zero pulling force index line is indigo plant
Color.
5. the rope of the asymmetric instruction pulling force as any one of claim 1-4, it is characterised in that：Each item on clad
The position of pulling force index line determines by the following method, is as follows：
1）The rope main body and clad for the rope for being used to prepare asymmetric instruction 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）Choose certain length marker, the distance between fixed base and zero pulling force index line be L, the 4th pulling force index line
Distance with zero pulling force index line is L4, the 3rd pulling force index line and zero pulling force index line distance be L3, the second pulling force index line
Distance with zero pulling force index line is L2, the first pulling force index line and zero pulling force index line distance be L1；According to（L-L4）×（1
+X4）=L, i.e., it is asymmetric instruction pulling force rope in, the region between the 4th pulling force index line and fixed base is in the 4th pulling force
Under the action of stretch after length should be equal to the distance between fixed base and zero pulling force index line L, through reckoning obtain L4=(LX4/
(1+X4));Similarly, L3=(LX3/(1+X3)); L2=(LX2/(1+X2)), L1=(LX1/(1+X1))。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810071338.4A CN108118546A (en) | 2018-01-25 | 2018-01-25 | A kind of rope of asymmetric instruction pulling force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810071338.4A CN108118546A (en) | 2018-01-25 | 2018-01-25 | A kind of rope of asymmetric instruction pulling force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108118546A true CN108118546A (en) | 2018-06-05 |
Family
ID=62233974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810071338.4A Withdrawn CN108118546A (en) | 2018-01-25 | 2018-01-25 | A kind of rope of asymmetric instruction pulling force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108118546A (en) |
-
2018
- 2018-01-25 CN CN201810071338.4A patent/CN108118546A/en not_active Withdrawn
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Application publication date: 20180605 |