CN109238195A - A kind of detection device and detection method of winch cable length - Google Patents
A kind of detection device and detection method of winch cable length Download PDFInfo
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- CN109238195A CN109238195A CN201811013370.3A CN201811013370A CN109238195A CN 109238195 A CN109238195 A CN 109238195A CN 201811013370 A CN201811013370 A CN 201811013370A CN 109238195 A CN109238195 A CN 109238195A
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- hawser
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention discloses the detection devices and detection method of a kind of winch cable length, belong to field of ocean engineering.Detection device includes encoder and processor, the detection axis of encoder and the roller of winch are coaxially connected together, the output end of encoder is electrically connected with the input terminal of processor, detection device further includes the first limit switch and the second limit switch, first limit switch and the second limit switch interval are mounted on the cable-remover bracket of winch, first limit switch and the second limit switch are electrically connected with the input terminal of processor, processor is used to be calculated the number of plies of the hawser of roller winding according to the electric signal that the first limit switch and the second limit switch export, the circle number of each layer of hawser of roller winding is calculated according to the electric signal of encoder output, the length of hawser is calculated according to the circle number of the number of plies of hawser and each layer hawser.The precision of detection cable length can be improved in the present invention.
Description
Technical field
The invention belongs to field of ocean engineering, in particular to the detection device of a kind of winch cable length and detection side
Method.
Background technique
Roller is a kind of common mechanical part, is all applied in a variety of ocean mechanical equipments, such as winch, is dragged
Cable machine and loop wheel machine etc. are mainly recycled or are released hawser by the rotation of itself.
In order to avoid hawser is excessively released, operator needs clearly to know the cable length wound in roller.Or
In certain operating conditions, operator needs clearly to know the cable length released.Present cable length detection method is logical
Encoder is arranged in one end of roller in Chang Wei, and the detection axis and roller of encoder are coaxially connected together, so as to survey in real time
Measure the circle number of roller rotation.Further, it is assumed that the number of plies n of the hawser wound on roller is given value, and each layer of cable
The circle number p of rope is all the same, then roller is for each revolution, indicates roller recycling or withdraws a circle hawser, when roller rotation p circle
When, indicate that the number of plies of the hawser wound on roller adds 1 or subtracts 1.By the real-time number of plies and circle number p, roller can be calculated
On the cable length that winds in real time.
However, not ensuring that the circle number of every layer of hawser is all identical, so such as due to during actual recovered hawser
The each layer of fruit all using definite value p as circle number, will lead to number of plies mistake, and then the detection of cable length is caused mistake occur.
Summary of the invention
The embodiment of the invention provides the detection devices and detection method of a kind of winch cable length, and detection cable can be improved
The precision of rope length degree.The technical solution is as follows:
On the one hand, the embodiment of the invention provides a kind of detection device of winch cable length, the detection device includes
Encoder and processor, the detection axis of the encoder and the roller of winch are coaxially connected together, the output of the encoder
End is electrically connected with the input terminal of the processor, and the detection device further includes the first limit switch and the second limit switch, institute
It states the first limit switch and second limit switch interval is mounted on the cable-remover bracket of the winch, and first limit
Bit switch is located at one end of cable-remover track, and second limit switch is located at the other end of the cable-remover track, and described
One limit switch and second limit switch are electrically connected with the input terminal of the processor, and the processor is used for according to institute
The number of plies that the hawser of the roller winding is calculated in the electric signal that the first limit switch and second limit switch export is stated,
The circle number of each layer of hawser of the roller winding is calculated according to the electric signal of the encoder output, according to the layer of hawser
The length of hawser is calculated in several and each layer hawser circle number.
In a kind of implementation of the invention, the detection device further includes induction collision block, and the induction collision block is fixed
It is mounted on cable-remover, the induction collision block is arranged towards the cable-remover track.
In another implementation of the invention, the detection device further includes cord-pressing block, and the cord-pressing block is fixed on
On the periphery wall of described roller one end, one end of the hawser of the roller winding is fixedly clamped on the cord-pressing block and the roller
Between.
In another implementation of the invention, the encoder is multi-turn absolute value encoder.
In another implementation of the invention, the individual pen umber of pulse of the encoder is 1024.
On the other hand, the embodiment of the invention provides a kind of detection method of winch cable length, the detection method bases
In above-mentioned detection device, the detection method includes:
Calibrating parameters are obtained, the calibrating parameters are the number of plies and each layer of hawser of the hawser wound on the roller
Enclose number；
The electric signal for detecting first limit switch and second limit switch, according to first limit switch and
The number of plies of hawser change layer is calculated in the electric signal of second limit switch, and the hawser change layer is winch starting
Afterwards, the hawser layer for withdrawing or stretching out on the roller；
The circle of each hawser change layer is calculated according to the electric signal of the encoder for the electric signal for obtaining the encoder
Number；
According to the calibrating parameters, the circle number of the number of plies of the hawser change layer and the hawser change layer, it is calculated
The length of the hawser now wound on the roller.
Further, hawser is calculated according to the electric signal of first limit switch and second limit switch to become
Change the number of plies of layer, comprising:
When the winch is rope closing operating condition, if detecting first limit switch or second limit switch
When rising edge signal, the number of plies of the hawser change layer adds one；
When the winch is to put rope operating condition, if detecting first limit switch or second limit switch
When failing edge signal, the number of plies of the hawser change layer adds one.
Further, the hawser circle number of each hawser change layer is calculated according to the electric signal of the encoder, comprising:
When detecting that the encoder rotation is turned around, the hawser circle number of the current hawser change layer adds one.
Further, according to the calibrating parameters, the circle number of the number of plies of the hawser change layer and the hawser change layer,
The length of the hawser now wound on the roller is calculated, comprising:
Judge the operating condition of the winch；
When the operating condition of the winch is rope closing operating condition, by the hawser wound on roller described in the calibrating parameters
The number of plies, the number of plies of the hawser change layer are added, and the number of plies of the hawser now wound on the roller is calculated；
According to the number of plies of the hawser now wound on the roller, the circle number of each layer hawser, it is calculated on the roller existing
The length of the hawser of winding；
When the operating condition of the winch is rope stretching operating condition, by the hawser wound on roller described in the calibrating parameters
The number of plies, the number of plies of the hawser change layer are subtracted each other, and the number of plies of the hawser now wound on the roller is calculated；
According to the number of plies of the hawser now wound on the roller, the circle number of each layer hawser, it is calculated on the roller existing
The length of the hawser of winding.
Further, the length of the hawser now wound on the roller is calculated by the following formula to obtain:
L=π (D+d) .P1+π(D+2d).P2+...+π(D+nd).Pn
Wherein, L is the length of the hawser now wound on roller, and D is the diameter of the roller, and d is the diameter of the hawser,
N is the number of plies of the hawser now wound on the roller, PnFor the circle number of n-th layer hawser.
Technical solution provided in an embodiment of the present invention has the benefit that
Since processor can be calculated according to the electric signal that first limit switch and second limit switch export
The number of plies of the hawser of the roller winding is obtained, the roller winding is calculated according to the electric signal of the encoder output
The circle number of each layer of hawser, so the circle number of each layer of hawser is all accurate quantity, rather than the quantity estimated, therefore can
Improve the precision of detection cable length.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of detection device provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart of detection method provided in an embodiment of the present invention；
Fig. 3 is the flow chart of another detection method provided in an embodiment of the present invention；
Each symbol indicates that meaning is as follows in figure:
1- encoder, the first limit switch of 2-, the second limit switch of 3-, 4- induction collision block, 5- cord-pressing block, 100- roller,
200- cable-remover bracket, 300- cable-remover track, 400- cable-remover.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiment of the invention provides a kind of detection devices of winch cable length, as shown in Figure 1, detection device includes compiling
Code device 1 and processor, the detection axis of encoder 1 and the roller 100 of winch are coaxially connected together, the output end of encoder 1 with
The input terminal of processor is electrically connected, and detection device further includes the first limit switch 2 and the second limit switch 3, the first limit switch 2
It is mounted on the cable-remover bracket 200 of winch with the second limit switch 3 interval, and the first limit switch 2 is located at cable-remover track
300 one end, the second limit switch 3 are located at the other end of cable-remover track 300, the first limit switch 2 and the second limit switch 3
It is electrically connected with the input terminal of processor, processor is used for the telecommunications exported according to the first limit switch 2 and the second limit switch 3
The number of plies of the hawser of the winding of roller 100 number is calculated, roller 100 is calculated according to the electric signal that encoder 1 exports and is wound
Each layer of hawser circle number, the length of hawser is calculated according to the circle number of the number of plies of hawser and each layer hawser.
Since rolling can be calculated according to the electric signal that the first limit switch 2 and the second limit switch 3 export in processor
The number of plies of the hawser of 100 winding of cylinder, each layer of hawser of the winding of roller 100 is calculated according to the electric signal that encoder 1 exports
Circle number, so the circle number of each layer of hawser is all accurate quantity, rather than the quantity estimated, therefore can be improved detection cable
The precision of rope length degree.
Specifically, detection device further includes induction collision block 4, and induction collision block 4 is fixedly mounted on cable-remover 400, and induction is hit
Block 4 is arranged towards cable-remover track 300, to ensure that the first limit switch 2 and the second limit switch 3 can sense movement
Cable-remover 400, avoid the case where occurring being not sensed by cable-remover 400.
Optionally, detection device further includes cord-pressing block 5, and cord-pressing block 5 is fixed on the periphery wall of 100 one end of roller, roller
One end of the hawser of 100 windings is fixedly clamped between cord-pressing block 5 and roller 100.
In above-mentioned implementation, by the fixed hawser of cord-pressing block 5, enable to hawser by one end of roller 100
It is wrapped on roller 100, so that convenient count the first layer hawser being wrapped on roller 100.
Preferably, encoder 1 is multi-turn absolute value encoder 1.To improve the detection accuracy of encoder 1
Preferably, the individual pen umber of pulse of encoder 1 is 1024, to further improve the detection accuracy of encoder 1.
Fig. 2 is a kind of detection method of winch cable length provided in an embodiment of the present invention, which is based on Fig. 1 institute
The detection device shown, in conjunction with Fig. 2, which includes:
Step 101: obtaining calibrating parameters, calibrating parameters are the number of plies and each layer of hawser of the hawser wound on roller
Enclose number.
In above-mentioned implementation, when calibrating parameters can shut down for winch last time, the number of plies of the hawser wound on roller
With the circle number of each layer of hawser.If winch is to put rope for the first time, calibrating parameters can pass through inspection in winch last time rope closing
Device is surveyed to detect to obtain and record.
Step 102: the electric signal of detection the first limit switch and the second limit switch, according to the first limit switch and second
The electric signal of limit switch is calculated the number of plies of hawser change layer, after hawser change layer is winch starting, withdrawn on roller or
The hawser layer that person stretches out.
Step 103: obtaining the electric signal of encoder, the circle of each hawser change layer is calculated according to the electric signal of encoder
Number.
Step 104: according to the circle number of calibrating parameters, the number of plies of hawser change layer and hawser change layer, roller is calculated
On the length of hawser that now winds.
In the cable length wound on provided detection method detection roller through the embodiment of the present invention, due to each
The circle number of layer hawser is all accurate quantity, rather than the quantity estimated, therefore can be improved the precision of detection cable length.
Fig. 3 is the detection method of another winch cable length provided in an embodiment of the present invention, which is based on Fig. 1
Shown in detection device, in conjunction with Fig. 3, which includes:
Step 201: obtaining calibrating parameters, calibrating parameters are the number of plies and each layer of hawser of the hawser wound on roller
Enclose number.
In above-mentioned implementation, when calibrating parameters can shut down for winch last time, the number of plies of the hawser wound on roller
With the circle number of each layer of hawser.If winch is to put rope for the first time, calibrating parameters can pass through inspection in winch last time rope closing
Device is surveyed to detect to obtain and record.
Step 202: the electric signal of detection the first limit switch and the second limit switch, according to the first limit switch and second
The electric signal of limit switch is calculated the number of plies of hawser change layer, after hawser change layer is winch starting, withdrawn on roller or
The hawser layer that person stretches out.
In above-mentioned implementation, the number of plies of hawser change layer refers to the variation of the number of plies of the hawser wound on roller
Amount.That is, no matter winch is rope closing operating condition or puts rope operating condition, the number of plies of hawser change layer is positive value.
Specifically, step 202 can be accomplished by the following way:
When the winch is rope closing operating condition, if detecting first limit switch or second limit switch
When rising edge signal, the number of plies of the hawser change layer adds one.
It should be noted that show that the number of plies of the hawser on roller necessarily increases when winch is rope closing operating condition, so
Under rope closing operating condition, the number of plies of the hawser on roller is the number of plies that calibrating parameters add hawser change layer.
When the winch is to put rope operating condition, if detecting first limit switch or second limit switch
When failing edge signal, the number of plies of the hawser change layer adds one.
It should be noted that show that the number of plies of the hawser on roller is necessarily reduced when winch is to put rope operating condition, so
Under rope closing operating condition, the number of plies of the hawser on roller is the number of plies that calibrating parameters subtract hawser change layer.
Step 203: obtaining the electric signal of encoder, the circle of each hawser change layer is calculated according to the electric signal of encoder
Number.
Specifically, step 203 can be accomplished by the following way:
When detecting that encoder rotation is turned around, the hawser circle number of current hawser change layer adds one.
It should be noted that current hawser change layer refers to just in rope closing or putting that layer of hawser of rope.
Step 204: according to the circle number of calibrating parameters, the number of plies of hawser change layer and hawser change layer, roller is calculated
On the length of hawser that now winds.
Specifically, step 204 can be accomplished by the following way:
Judge the operating condition of winch.
When the operating condition of winch is rope closing operating condition, the number of plies of the hawser wound on roller in calibrating parameters, hawser are become
The number of plies for changing layer is added, and the number of plies of the hawser now wound on roller is calculated.
According to the number of plies of the hawser now wound on roller, the circle number of each layer hawser, the cable now wound on roller is calculated
The length of rope.
When the operating condition of winch is rope stretching operating condition, the number of plies of the hawser wound on roller in calibrating parameters, hawser are become
The number of plies for changing layer is subtracted each other, and the number of plies of the hawser now wound on roller is calculated.
According to the number of plies of the hawser now wound on roller, the circle number of each layer hawser, the cable now wound on roller is calculated
The length of rope.
Specifically, the length of the hawser now wound on roller is calculated by the following formula to obtain:
L=π (D+d) .P1+π(D+2d).P2+...+π(D+nd).Pn
Wherein, L is the length of the hawser now wound on roller, and D is the diameter of roller, and d is the diameter of hawser, and n is roller
On the number of plies of hawser that now winds, PnFor the circle number of n-th layer hawser.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of detection device of winch cable length, the detection device includes encoder and processor, the encoder
The roller of detection axis and winch is coaxially connected together, and the output end of the encoder and the input terminal of the processor are electrically connected
Connect, which is characterized in that the detection device further includes the first limit switch and the second limit switch, first limit switch and
Second limit switch interval is mounted on the cable-remover bracket of the winch, and first limit switch is located at cable-remover
One end of track, second limit switch are located at the other end of the cable-remover track, first limit switch and described
Second limit switch is electrically connected with the input terminal of the processor, the processor be used for according to first limit switch and
The number of plies of the hawser of the roller winding is calculated in the electric signal of the second limit switch output, defeated according to the encoder
The circle number of each layer of hawser of the roller winding is calculated in electric signal out, according to the circle of the number of plies of hawser and each layer hawser
The length of hawser is calculated in number.
2. detection device according to claim 1, which is characterized in that the detection device further includes induction collision block, described
Induction collision block is fixedly mounted on cable-remover, and the induction collision block is arranged towards the cable-remover track.
3. detection device according to claim 1, which is characterized in that the detection device further includes cord-pressing block, the pressure
Rope block is fixed on the periphery wall of described roller one end, and one end of the hawser of the roller winding is fixedly clamped on the cord-pressing block
Between the roller.
4. detection device according to claim 1-3, which is characterized in that the encoder is multi-turn absolute value volume
Code device.
5. detection device according to claim 4, which is characterized in that the individual pen umber of pulse of the encoder is 1024.
6. a kind of detection method of winch cable length, which is characterized in that the detection method is based on inspection described in claim 1
Device is surveyed, the detection method includes:
Calibrating parameters are obtained, the calibrating parameters are the number of plies of the hawser wound on the roller and the circle of each layer of hawser
Number；
The electric signal for detecting first limit switch and second limit switch, according to first limit switch and described
The number of plies of hawser change layer is calculated in the electric signal of second limit switch, after the hawser change layer is winch starting,
The hawser layer for withdrawing or stretching out on the roller；
The circle number of each hawser change layer is calculated according to the electric signal of the encoder for the electric signal for obtaining the encoder；
According to the calibrating parameters, the circle number of the number of plies of the hawser change layer and the hawser change layer, it is calculated described
The length of the hawser now wound on roller.
7. detection method according to claim 6, which is characterized in that according to first limit switch and second limit
The number of plies of hawser change layer is calculated in the electric signal of bit switch, comprising:
When the winch is rope closing operating condition, if detecting the rising of first limit switch or second limit switch
When along signal, the number of plies of the hawser change layer adds one；
When the winch is to put rope operating condition, if detecting the decline of first limit switch or second limit switch
When along signal, the number of plies of the hawser change layer adds one.
8. detection method according to claim 6, which is characterized in that be calculated respectively according to the electric signal of the encoder
The hawser circle number of hawser change layer, comprising:
When detecting that the encoder rotation is turned around, the hawser circle number of the current hawser change layer adds one.
9. detection method according to claim 6, which is characterized in that according to the calibrating parameters, the hawser change layer
The number of plies and the hawser change layer circle number, the length of the hawser now wound on the roller is calculated, comprising:
Judge the operating condition of the winch；
When the operating condition of the winch is rope closing operating condition, by the layer of the hawser wound on roller described in the calibrating parameters
The number of plies of several, the described hawser change layer is added, and the number of plies of the hawser now wound on the roller is calculated；
According to the number of plies of the hawser now wound on the roller, the circle number of each layer hawser, it is calculated on the roller and now winds
Hawser length；
When the operating condition of the winch is rope stretching operating condition, by the layer of the hawser wound on roller described in the calibrating parameters
The number of plies of several, the described hawser change layer is subtracted each other, and the number of plies of the hawser now wound on the roller is calculated；
According to the number of plies of the hawser now wound on the roller, the circle number of each layer hawser, it is calculated on the roller and now winds
Hawser length.
10. detection method according to claim 9, which is characterized in that the length of the hawser now wound on the roller is logical
Following formula is crossed to be calculated:
L=π (D+d) .P1+π(D+2d).P2+...+π(D+nd).Pn
Wherein, L is the length of the hawser now wound on roller, and D is the diameter of the roller, and d is the diameter of the hawser, and n is
The number of plies of the hawser now wound on the roller, PnFor the circle number of n-th layer hawser.
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| CN201811013370.3A CN109238195B (en) | 2018-08-31 | 2018-08-31 | Method for detecting length of winch cable |
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| CN201811013370.3A CN109238195B (en) | 2018-08-31 | 2018-08-31 | Method for detecting length of winch cable |
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| TWI793380B (en) * | 2019-11-04 | 2023-02-21 | 日商藤倉股份有限公司 | Roller for long items, computer for management, and long item management system |
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| CN109238195B (en) | 2021-06-22 |
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