CN111397783A - Steel wire tension detection device for manufacturing main cable strand of suspension bridge - Google Patents
Steel wire tension detection device for manufacturing main cable strand of suspension bridge Download PDFInfo
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- CN111397783A CN111397783A CN202010206343.9A CN202010206343A CN111397783A CN 111397783 A CN111397783 A CN 111397783A CN 202010206343 A CN202010206343 A CN 202010206343A CN 111397783 A CN111397783 A CN 111397783A
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- guide wheel
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 88
- 239000010959 steel Substances 0.000 title claims abstract description 88
- 239000000725 suspension Substances 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title abstract description 8
- 238000012360 testing method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
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- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A steel wire tension detection device manufactured by main cable strands of a suspension bridge comprises an arched bracket, a guide frame, a sliding block, a push rod, a stress sensor, a stress wheel and a driving unit; at least one end of the arched bracket is outwards and upwards obliquely and convexly provided with an extension arm, and the tail end of the extension arm is rotatably connected with a guide wheel; the middle part of the arched bracket is provided with a steel wire connecting part in a protruding way; a steel wire to be tested bypasses the guide wheel and is connected with the steel wire connecting part, and at least part of the steel wire to be tested is horizontally arranged; the leading truck is vertical to be set up in the top at the middle part of bow-shaped support, and the inside of leading truck is provided with the direction chamber along length direction, and the slider slides and is located the direction intracavity, and the push rod is connected in the bottom of slider, and the end-to-end connection of force sensor and push rod, atress wheel set up in the one end that the push rod was kept away from to the force sensor, and drive unit is used for driving the slider and slides in the direction intracavity. So realize carrying out tension detection respectively to many steel wires of constituteing a strand, the tension error of steel wire when reducing the strand manufacturing improves the length precision of strand steel wire, makes the steel wire atress even, improves the atress performance of strand.
Description
Technical Field
The invention relates to the technical field of bridge strand detection, in particular to a steel wire tension detection device for manufacturing a main cable strand of a suspension bridge.
Background
The steel wire strand is applied to the suspension bridge in a large number, and when the steel wire strand is manufactured, a detection method for the traction force of the steel wire is lacked, so that the uniform stress of dozens of hundreds of steel wires cannot be ensured, and the braking force of a material disc brake can be adjusted. Therefore, it is necessary to overcome the defects of the conventional detection means and provide a new solution.
Disclosure of Invention
In view of the above, the present invention provides a steel wire tension detecting device for manufacturing a main cable strand of a suspension bridge, which is used for detecting tension of a plurality of steel wires constituting one strand, respectively, so as to solve the above problems.
A steel wire tension detection device manufactured by main cable strands of a suspension bridge comprises an arched bracket, a guide frame, a sliding block, a push rod, a stress sensor, a stress wheel and a driving unit; at least one end of the arched bracket is outwards and upwards obliquely and convexly provided with an extension arm, and the tail end of the extension arm is rotatably connected with a guide wheel; the middle part of the arched bracket is provided with a steel wire connecting part in a protruding way; a steel wire to be tested bypasses the guide wheel and is connected with the steel wire connecting part, and at least part of the steel wire to be tested is horizontally arranged; the leading truck is vertical to be set up in the top at the middle part of bow-shaped support, and the inside of leading truck is provided with the direction chamber along length direction, and the slider slides and is located the direction intracavity, and the push rod is connected in the bottom of slider, and the end-to-end connection of force sensor and push rod, atress wheel set up in the one end that the push rod was kept away from to the force sensor, and drive unit is used for driving the slider and slides in the direction intracavity.
Furthermore, a first end of the arched support is outwards and upwards obliquely and convexly provided with a first extension arm, a second end of the arched support is outwards and upwards obliquely and convexly provided with a second extension arm, the tail end of the first extension arm is rotatably connected with a first guide wheel, and the tail end of the second extension arm is rotatably connected with a second guide wheel; the first end of the steel wire to be measured bypasses the first guide wheel and is connected with the steel wire connecting part, and the second end bypasses the second guide wheel and is connected with the steel wire connecting part.
Further, the end of the steel wire connecting portion is provided with a middle wheel, the head end and the tail end of the steel wire to be tested are connected, and the steel wire to be tested bypasses the middle wheel.
Furthermore, the circumferential outer side surface of the stress wheel, the first guide wheel, the second guide wheel or the middle wheel is provided with a limiting ring groove in a concave mode, and the steel wire to be tested is located in the limiting ring groove.
Furthermore, two sides of the guide frame are respectively connected with two sides of the middle part of the arched support through a support on one side.
Further, the force sensor is a tension meter.
Compared with the prior art, the steel wire tension detection device manufactured by the main cable strand of the suspension bridge comprises an arched bracket, a guide frame, a sliding block, a push rod, a stress sensor, a stress wheel and a driving unit; at least one end of the arched bracket is outwards and upwards obliquely and convexly provided with an extension arm, and the tail end of the extension arm is rotatably connected with a guide wheel; the middle part of the arched bracket is provided with a steel wire connecting part in a protruding way; a steel wire to be tested bypasses the guide wheel and is connected with the steel wire connecting part, and at least part of the steel wire to be tested is horizontally arranged; the leading truck is vertical to be set up in the top at the middle part of bow-shaped support, and the inside of leading truck is provided with the direction chamber along length direction, and the slider slides and is located the direction intracavity, and the push rod is connected in the bottom of slider, and the end-to-end connection of force sensor and push rod, atress wheel set up in the one end that the push rod was kept away from to the force sensor, and drive unit is used for driving the slider and slides in the direction intracavity. So realize carrying out tension detection respectively to many steel wires of constituteing a strand, the tension error of steel wire when reducing the strand manufacturing improves the length precision of strand steel wire, makes the steel wire atress even, improves the atress performance of strand.
Drawings
Embodiments of the invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a schematic side view of a steel wire tension detecting device for manufacturing a main cable strand of a suspension bridge provided by the invention.
Fig. 2 is a schematic view of the working state of the steel wire tension detecting device manufactured by the main cable strand of the suspension bridge provided by the invention.
Detailed Description
Specific embodiments of the present invention will be described in further detail below based on the drawings. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
Referring to fig. 1, the steel wire tension detecting device manufactured by a main cable strand of a suspension bridge according to the present invention includes an arch bracket 10, a guide frame 20, a slider 30, a push rod 40, a force sensor 50, a force wheel 60, and a driving unit 70.
The first end of the bow-shaped support 10 is provided with a first extension arm 11 protruding outwards and inclining upwards, the second end is provided with a second extension arm 12 protruding outwards and inclining upwards, the end of the first extension arm 11 is rotatably connected with a first guide wheel 111, and the end of the second extension arm 12 is rotatably connected with a second guide wheel 121.
The middle part of the arched bracket 10 is provided with a steel wire connecting part 13 which protrudes upwards.
A first end of a wire 100 to be measured passes around the first guide pulley 111 and is connected to the wire connecting portion 13, and a second end passes around the second guide pulley 121 and is connected to the wire connecting portion 13.
Before the test, the steel wire 100 to be tested is in a natural straightening state.
In other embodiments, the second end of the steel wire 100 to be tested may also be horizontally disposed and connected to a fixed plane.
The guide frame 20 is vertically arranged above the middle part of the arched support 10, a guide cavity is arranged in the guide frame 20 along the length direction, the sliding block 30 is slidably located in the guide cavity, the push rod 40 is connected to the bottom of the sliding block 30, the stress sensor 50 is connected with the tail end of the push rod, and the stress wheel 60 is arranged at one end, far away from the push rod, of the stress sensor 50. The driving unit 70 is used for driving the slider 30 to slide in the guide cavity.
The steel wire connecting portion 13 can prevent the two ends of the steel wire 100 to be measured from interfering with the middle portion when the middle portion of the steel wire 100 to be measured is deformed, i.e., provide a sufficient space for the middle portion of the steel wire 100 to be measured to be deformed.
The steel wire 100 to be tested is arranged through the structure, so that the stress is uniform during testing.
Referring to fig. 2, during the test, the driving unit 70 drives the slider 30 to slide downward in the guide cavity, so that the stressed wheel 60 abuts against the middle of the steel wire 100 to be tested, and presses the steel wire 100 to be tested to deform, so that the steel wire 100 to be tested generates an included angle θ at the first guide wheel 111 or the second guide wheel 121 relative to the horizontal plane, the stress sensor 50 can detect the pressure F1 applied to the stressed wheel 60 on the vertical plane, and the tension F2 applied to the steel wire 100 to be tested can be calculated according to the trigonometric function.
Meanwhile, the stretching degree of the steel wire 100 to be tested after deformation can be calculated according to the trigonometric function, so that the tension borne by the steel wire 100 to be tested under different stretching degrees can be obtained. If the maximum safe tension that the steel wire 100 to be tested can bear, that is, the tension that the steel wire 100 to be tested bears when at least one steel wire breaks, needs to be detected, the driving unit 70 drives the slider 30 to move downwards until at least one steel wire of the steel wire 100 to be tested breaks, and the pressure F1 and the tension F2 at this time are recorded.
In other embodiments, the end of the steel wire connecting portion 13 may further be provided with a middle wheel, the two ends of the steel wire 100 to be measured are connected, and the steel wire 100 to be measured bypasses the middle wheel.
The stress wheel 60, the first guide wheel 111, the second guide wheel 121 and the outer circumferential side face of the middle wheel are provided with limiting ring grooves in a concave mode, and the steel wire 100 to be tested is located in the limiting ring grooves.
The two sides of the guide frame 20 are respectively connected with the two sides of the middle part of the arched support 10 through a side support, so that the interference on the steel wire connecting part 13 and the steel wire 100 to be measured is avoided.
The force sensor 50 is a tension meter.
Compared with the prior art, the steel wire tension detection device manufactured by the main cable strand of the suspension bridge comprises an arched bracket 10, a guide frame 20, a sliding block 30, a push rod 40, a stress sensor 50, a stress wheel 60 and a driving unit 70; at least one end of the arched bracket 10 is outwards and upwards obliquely and convexly provided with an extension arm, and the tail end of the extension arm is rotationally connected with a guide wheel; a steel wire connecting part 13 is convexly arranged in the middle of the arched bracket 10; a steel wire 100 to be tested bypasses the guide wheel and is connected with the steel wire connecting part 13, and at least part of the steel wire 100 to be tested is horizontally arranged; the guide frame 20 is vertically arranged above the middle part of the arched support 10, a guide cavity is arranged in the guide frame 20 along the length direction, the sliding block 30 is slidably located in the guide cavity, the push rod 40 is connected to the bottom of the sliding block 30, the stress sensor 50 is connected with the tail end of the push rod, the stress wheel 60 is arranged at one end, far away from the push rod, of the stress sensor 50, and the driving unit 70 is used for driving the sliding block 30 to slide in the guide cavity. So realize carrying out tension detection respectively to many steel wires of constituteing a strand, the tension error of steel wire when reducing the strand manufacturing improves the length precision of strand steel wire, makes the steel wire atress even, improves the atress performance of strand.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.
Claims (6)
1. The utility model provides a steel wire tension detection device that suspension bridge main push-towing rope strand was made which characterized in that: comprises an arched bracket, a guide frame, a slide block, a push rod, a stress sensor, a stress wheel and a driving unit; at least one end of the arched bracket is outwards and upwards obliquely and convexly provided with an extension arm, and the tail end of the extension arm is rotatably connected with a guide wheel; the middle part of the arched bracket is provided with a steel wire connecting part in a protruding way; a steel wire to be tested bypasses the guide wheel and is connected with the steel wire connecting part, and at least part of the steel wire to be tested is horizontally arranged; the leading truck is vertical to be set up in the top at the middle part of bow-shaped support, and the inside of leading truck is provided with the direction chamber along length direction, and the slider slides and is located the direction intracavity, and the push rod is connected in the bottom of slider, and the end-to-end connection of force sensor and push rod, atress wheel set up in the one end that the push rod was kept away from to the force sensor, and drive unit is used for driving the slider and slides in the direction intracavity.
2. The apparatus for detecting tension of wire made of main cable strand of suspension bridge as claimed in claim 1, wherein: the first end of the arched support is outwards and upwards obliquely and convexly provided with a first extension arm, the second end of the arched support is outwards and upwards obliquely and convexly provided with a second extension arm, the tail end of the first extension arm is rotatably connected with a first guide wheel, and the tail end of the second extension arm is rotatably connected with a second guide wheel; the first end of the steel wire to be measured bypasses the first guide wheel and is connected with the steel wire connecting part, and the second end bypasses the second guide wheel and is connected with the steel wire connecting part.
3. The apparatus for detecting tension of wire made of main cable strand of suspension bridge as claimed in claim 2, wherein: the end of the steel wire connecting part is provided with a middle wheel, the head end and the tail end of the steel wire to be tested are connected, and the steel wire to be tested bypasses the middle wheel.
4. A wire tension detecting device for a suspension bridge main cable strand according to claim 3, wherein: the stress wheel, the first guide wheel, the second guide wheel or the middle wheel are provided with limiting ring grooves in a concave mode on the circumferential outer side face, and the steel wire to be tested is located in the limiting ring grooves.
5. The apparatus for detecting tension of wire made of main cable strand of suspension bridge as claimed in claim 1, wherein: the two sides of the guide frame are respectively connected with the two sides of the middle part of the arched support through a support on one side.
6. The apparatus for detecting tension of wire made of main cable strand of suspension bridge as claimed in claim 1, wherein: the force sensor is a tension meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010206343.9A CN111397783A (en) | 2020-03-23 | 2020-03-23 | Steel wire tension detection device for manufacturing main cable strand of suspension bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010206343.9A CN111397783A (en) | 2020-03-23 | 2020-03-23 | Steel wire tension detection device for manufacturing main cable strand of suspension bridge |
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| Publication Number | Publication Date |
|---|---|
| CN111397783A true CN111397783A (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010206343.9A Pending CN111397783A (en) | 2020-03-23 | 2020-03-23 | Steel wire tension detection device for manufacturing main cable strand of suspension bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252225A (en) * | 2021-04-13 | 2021-08-13 | 武汉纺织大学 | Bundling tension detection system |
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2020
- 2020-03-23 CN CN202010206343.9A patent/CN111397783A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113252225A (en) * | 2021-04-13 | 2021-08-13 | 武汉纺织大学 | Bundling tension detection system |
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