CN209144657U - A kind of drag-line of built-in acceleration sensor - Google Patents
A kind of drag-line of built-in acceleration sensor Download PDFInfo
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- CN209144657U CN209144657U CN201821614559.3U CN201821614559U CN209144657U CN 209144657 U CN209144657 U CN 209144657U CN 201821614559 U CN201821614559 U CN 201821614559U CN 209144657 U CN209144657 U CN 209144657U
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Abstract
The utility model provides a kind of drag-line of built-in acceleration sensor, it include: the cable body being made of steel wire or steel strand wires, the acceleration transducer being internally provided with for detecting cable body vibration frequency, the power supply line for the fieldbus of communication and for connecting power supply of the cable body, the outer layer of the cable body be provided with PE layers, HDPE protective jacket and anchor head, one end of the anchor head be additionally provided with the wire and cable connector for connecting fieldbus and power supply line；The built-in acceleration sensor drag-line of the utility model, acceleration transducer can be arranged in any favored site of drag-line, precision is picked up convenient for picking up the drag-line natural frequency of vibration and improving frequency, to improve frequency method measuring rope power equally accurate, acceleration transducer combines together with drag-line, guarantees the accuracy of inhaul cable vibration data acquisition and the beauty of drag-line.
Description
Technical field
The utility model belongs to bridge cable technical field, and in particular to a kind of drag-line of built-in acceleration sensor.
Background technique
In stayed-cable bridge, drag-line is the key that bridge load bearing component.Drag-line long service under high-stress state, and
And damage is generated by the corrosiveness of environment.Under the action of extraneous impact load, drag-line cable body is easy to happen mechanical broken
It is bad, influence bridge safty.As I crosses the sustainable growth of car ownership, traffic accident is also constantly occurring, and bridge is drawn
The safety of rope is also being challenged.Drag-line state can preferably be monitored by providing a kind of built-in acceleration sensor for drag-line,
It can be avoided drag-line to destroy due to accidental shock, promote bridge safty.
Drag-line detection device in the prior art, it is most of to will test equipment and be mounted on drag-line outer surface, detection error
Larger, operation is extremely inconvenient, and versatility is poor.
Such as a kind of Chinese utility model patent " solar powered built-in vibration rope of Publication No. CN206470013U
Force measuring device ", including solar panel, lithium battery, MEMS acceleration transducer, microcontroller, bluetooth radio module
With mechanical shell, whole device is designed using wireless penetration, built-in inside cable cable body, is used integrated design with cable, is mentioned
Permanent protective property and practicability.
By the above content it can be found that the core of cable force measurement device is integrated design, but its in the prior art
Single order fundamental frequency can only be detected, second order, three rank vibration frequencies cannot be detected and calculate, influences to calculate the accuracy that Suo Li is calculated；Together
When, wireless telecommunications rely on the matching of external device (ED), and versatility is insufficient.
Utility model content
The purpose of this utility model is to provide a kind of drag-lines of built-in acceleration sensor, it is intended to solve in the prior art
The problem that structure of the detecting device is complicated and Suo Li accuracy in detection is not high.
To realize above-mentioned technical purpose and the technique effect, the utility model is achieved through the following technical solutions:
The utility model provides a kind of drag-line of built-in acceleration sensor, comprising: is made of steel wire or steel strand wires
Cable body, the acceleration transducer of the cable body being internally provided with for detecting cable body vibration frequency, for communication scene it is total
Line and power supply line for connecting power supply, the outer layer of the cable body are provided with polyethylene layer, high density polyethylene (HDPE) protective jacket and anchor
Head, one end of the anchor head are additionally provided with the wire and cable connector for connecting fieldbus and power supply line.
Preferably, the acceleration transducer is the miniature 3-axis acceleration sensor of MEMS.
Preferably, the acceleration transducer is provided at least one, is conducive to more accurately calculate rope from multiple dimensions
Power.
Preferably, one acceleration transducer is respectively set in 1/2 length of the cable body and 1/4 extension position；It is described to add
In three axis of velocity sensor, an axis is parallel with cable body length direction, the vertical cable body length direction of an axis is directed toward cable body, another
The vertical cable body length direction of one axis is directed toward external；Arrange that acceleration transducer data are conducive to pick up rope at 1/2 length of cable body
Body single order, the three rank natural frequencies of vibration, arrangement acceleration transducer data are conducive to pick up cable body second order self-vibration frequency at 1/4 length of cable body
Rate.
Preferably, the wire and cable connector uses aviation plug, for connecting acceleration transducer and by acceleration sensing
The connection of external data collector and power supply is convenient in the external interface standardization of device.
The advantages of the utility model:
1. the drag-line of the built-in acceleration sensor of the utility model can arrange acceleration in any favored site of drag-line
Sensor picks up precision convenient for picking up the drag-line natural frequency of vibration and improving frequency, to improve frequency method measuring rope power equally accurate.
2. the drag-line of the built-in acceleration sensor of the utility model can arrange multiple acceleration pulling on different parts
Sensor is conducive to calculate each position vibration amplitude of drag-line and inhaul cable vibration mode.
3. the drag-line of the built-in acceleration sensor of the utility model, acceleration transducer combine together with drag-line, guarantee
The accuracy of inhaul cable vibration data acquisition and the beauty of drag-line.
Detailed description of the invention
Fig. 1 is the cable body structural schematic diagram according to the utility model one embodiment；
Fig. 2 is the cable body cross-sectional view according to the utility model one embodiment；
Fig. 3 is the cable body side view according to the utility model one embodiment；
Fig. 4 is the acceleration sensor structure schematic diagram according to the utility model one embodiment；
Fig. 5 is the cable connector structure schematic diagram according to the utility model one embodiment；
In figure, 1 is cable body, and 2 be anchor head, and 3 be acceleration transducer, and 4 be fieldbus, and 5 be power supply line, and 6 be polyethylene
Layer, 7 be high density polyethylene (HDPE) protective jacket, and 8 be steel wire, and 9 be wire and cable connector.
Specific embodiment
In order to make the purpose of this utility model, technical solution and advantage are more clearly understood, and pass through tool below in conjunction with attached drawing
The utility model is further described in body embodiment.It should be appreciated that specific embodiment described herein is only to explain
The utility model is not used to limit the utility model.
A kind of drag-line of built-in acceleration sensor in an embodiment of the present invention, there is provided, institute as shown in Figure 1, Figure 2
Show, comprising: the cable body 1 (cable body can also be formed by steel strand wires in another embodiment) being made of steel wire 8, the cable body 1
The acceleration transducer 3 being internally provided with for detecting cable body vibration frequency, for the fieldbus 4 of communication and for connecting
The power supply line 5 of power supply, the outer layer of the cable body 1 be provided with for corrosion-resistant polyethylene layer 6, high density polyethylene (HDPE) protective jacket 7 and
Anchor head 2, one end of the anchor head 2 are additionally provided with the wire and cable connector 9 for connecting total 4 line in scene and power supply line 5.
Preferably, as shown in figure 4, the acceleration transducer 3 is the miniature 3-axis acceleration sensor of MEMS, the acceleration
Spend the interface that sensor 3 is equipped with connection fieldbus 4 and power supply line 5.
Preferably, the acceleration transducer 3 is provided at least one, is conducive to more accurately calculate from multiple dimensions
Suo Li.
Preferably, it is passed as shown in figure 3, an acceleration is respectively arranged in 1/2 length of the cable body 1 and 1/4 extension position
Sensor 3；In three axis of the acceleration transducer 3, an axis is parallel with 1 length direction of cable body, vertical 1 length of cable body of an axis
It is directed toward vertical 1 length direction of cable body of cable body 1, another axis and is directed toward outside in direction；Arrange that acceleration passes at 1/2 length of cable body 1
3 data of sensor are conducive to pick up 1 single order of cable body, the three rank natural frequencies of vibration, arrange 3 evidence of acceleration transducer number at 1/4 length of cable body 1
Conducive to pickup 1 Second Vibration Mode of Natural Frequencies of cable body.
Preferably, as shown in figure 5, the wire and cable connector 9 uses aviation plug, for connecting acceleration transducer 3 simultaneously
By the external interface standardization of acceleration transducer 3 convenient for the connection of external data collector and power supply.
Claims (5)
1. a kind of drag-line of built-in acceleration sensor characterized by comprising the cable body being made of steel wire or steel strand wires, institute
That states cable body is internally provided with acceleration transducer, fieldbus and power supply line, the outer layer of the cable body be provided with polyethylene layer,
One end of high density polyethylene (HDPE) protective jacket and anchor head, the anchor head is additionally provided with wire and cable connector.
2. the drag-line of built-in acceleration sensor as described in claim 1, it is characterised in that: the acceleration transducer is
The miniature 3-axis acceleration sensor of MEMS.
3. the drag-line of built-in acceleration sensor as claimed in claim 1 or 2, it is characterised in that: the acceleration transducer
It is provided at least one.
4. the drag-line of built-in acceleration sensor as claimed in claim 3, it is characterised in that: in 1/2 length of the cable body
One acceleration transducer is respectively set with 1/4 extension position；In three axis of the acceleration transducer, an axis and cable body length
Direction is parallel, the vertical cable body length direction of an axis is directed toward the vertical cable body length direction of cable body, another axis and is directed toward outside.
5. the drag-line of built-in acceleration sensor as claimed in claim 1 or 2, it is characterised in that: the wire and cable connector is adopted
Use aviation plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821614559.3U CN209144657U (en) | 2018-09-30 | 2018-09-30 | A kind of drag-line of built-in acceleration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821614559.3U CN209144657U (en) | 2018-09-30 | 2018-09-30 | A kind of drag-line of built-in acceleration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209144657U true CN209144657U (en) | 2019-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821614559.3U Active CN209144657U (en) | 2018-09-30 | 2018-09-30 | A kind of drag-line of built-in acceleration sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024279A (en) * | 2018-09-30 | 2018-12-18 | 柳州欧维姆机械股份有限公司 | A kind of built-in acceleration sensor drag-line |
-
2018
- 2018-09-30 CN CN201821614559.3U patent/CN209144657U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024279A (en) * | 2018-09-30 | 2018-12-18 | 柳州欧维姆机械股份有限公司 | A kind of built-in acceleration sensor drag-line |
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