CN208283023U - Deflection detector - Google Patents
Deflection detector Download PDFInfo
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- CN208283023U CN208283023U CN201820913051.7U CN201820913051U CN208283023U CN 208283023 U CN208283023 U CN 208283023U CN 201820913051 U CN201820913051 U CN 201820913051U CN 208283023 U CN208283023 U CN 208283023U
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Abstract
The utility model provides a kind of deflection detector, it includes: detection host, is equipped with torque motor in detection host, torque motor is connect with speed changer, and speed changer is connect with rope reel or torque motor is directly connect with rope reel；Detection rope, detection rope is on rope reel；Counterweight, counterweight are connect with the end of detection rope；Detection rope sensor, for detecting the output length of detection rope.It is fixedly connected in use, will test host with construction to be detected；Counterweight is fixedly connected with detection rope end head；Torque motor the first torque of output, detection rope is tauted at this time and counterweight records detection and restrict the length pulled out as zero-bit without departing from datum level；When detecting again, torque motor exports the first torque again, the length that record detection rope pulls out relative to zero-bit changing value as amount of deflection changing value.By using the structure that torque motor drives, the detection accuracy of deflection deformation can be improved, reliability is higher, arranges very convenient.
Description
Technical field
The utility model relates to construction deflection deformation fields of measurement, especially a kind of deflection detector.
Background technique
Common deflection metrology method has theodolite, level, dial gauge etc., is widely used in bridge on-site test and tests
It receives in identification, but this measurement method is only used for the short-term measurement process of bridge, and is using manual measurement, there are time-consuming
Arduously, inconvenient for use, the deficiencies of real-time measurement is difficult.There are also novel deflection metrology method, for example, inclinator, GPs,
Laser image method and communicating pipe photoelectric liquid level sensor etc. are gradually applied in the monitoring of large bridge structural deflection, it can be achieved that long
The measurement of phase remote auto.Wherein the comprehensive benefit of communicating pipe photoelectric liquid level sensor is more significant, but in the prior art
There are some defects for scheme, and for example, by using the structure to the photoelectric sensor penetrated, measurement accuracy is not high and structure is complicated, use
Reflective photoelectric sensor then has that easily disturbed and measurement accuracy is not high.And the detection device of communicating pipe
It needs to connect many pipelines, will cause if there is leaking at one
The collapse of whole system, data before are all cancelled, and reliability is not high.Especially in long-term monitoring process
In, evaporation is easy for the liquid medium as height identification or is contaminated, and influences measurement accuracy, and liquid medium is also easy
It is influenced by expanding with heat and contract with cold, measurement accuracy is not high.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of deflection detectors, can be improved detection accuracy,
Improve the reliability of entire detection system.
A kind of in order to solve the above technical problems, the technical scheme adopted by the utility model is: deflection detector, it is wrapped
It includes:
It detects host (1), is equipped with torque motor (101) in detection host (1), torque motor (101) and speed changer (102)
Connection, speed changer (102) is connect with rope reel (103) or torque motor (101) is directly connect with rope reel (103)；
Detection rope (2), detection rope (2) is on rope reel (103)；
Counterweight (3), counterweight (3) are connect with the end of detection rope (2)；
Detection rope sensor, for detecting the output length of detection rope.
In preferred scheme, the speed changer (102) is planetary transmission, cycloidal-pin wheel speed changer or worm screw snail
Wheel speed.
In preferred scheme, the detection rope sensor is photoelectric sensor (111), photoelectric sensor (111) setting
Near the detection rope outlet port of detection host (1)；
Or the detection rope sensor is angle transducer (7), angle transducer (7) is mounted on torque motor (101), becomes
In the connecting shaft of fast device (102) or rope reel (103).
It in preferred scheme, is additionally provided with control device (6), detection rope sensor is electrically connected with control device (6), control dress
It sets (6) to be electrically connected with torque motor (101), control device (6) is electrically connected with data sending device (9).
In preferred scheme, it is additionally provided with auxiliary detection wheel (104), detection rope (2) is around auxiliary detection wheel (104), auxiliary
The two sides of detection wheel (104) are helped to be equipped with cornerite guide wheel, so that detection rope (2) has sufficiently large packet in auxiliary detection wheel (104)
Angle；
Angle transducer (7) are equipped on the axis of auxiliary detection wheel (104), to detect the output length of detection rope.
In preferred scheme, guide wheel (107), guide wheel are additionally provided between auxiliary detection wheel (104) and rope reel (103)
(107) it is slidably mounted in sliding slot (108), is additionally provided with detection rope (2) radial pressure for being subject to guide wheel (107) and offsets
Spring (109), guide wheel (107) connect with fixed stay-supported type displacement sensor (110).
It in preferred scheme, is additionally provided with control device (6), detection rope sensor is electrically connected with control device (6), for examining
The stay-supported type displacement sensor (110) for surveying detection rope (2) tension is electrically connected with control device (6)；Control device (6) and torque electricity
Machine (101) electrical connection, control device (6) are electrically connected with data sending device (9).
A kind of detection method using above-mentioned deflection detector, comprising the following steps:
S1, it will test host (1) and be fixedly connected with construction to be detected (4)；
S2, counterweight (3) are fixedly connected with detection rope (2) end；
S3, counterweight (3) are transferred to datum level (5), torque motor (101) exports the first torque, at this time detection rope (2) quilt
Tighten and counterweight (3) without departing from datum level (5), the length that record detection rope (2) pulls out is as zero-bit；
S4, when detecting again, torque motor (101) exports the first torque again, the length that record detection rope (2) pulls out
Changing value relative to zero-bit is as amount of deflection changing value；
Realize that the deflection deformation of construction persistently detects by above step.
In preferred scheme, after one or many detections, torque motor (101) exports the second torque, will test rope (2)
It is sling completely with counterweight (3), until initial bit, restarts the length that detection detection rope (2) pulls out by initial bit, by counterweight
(3) it is lowered into datum level (5) again；
Torque motor (101) exports the first torque, the length that record detection rope (2) pulls out.
In preferred scheme, it will test amount of deflection changing value that host (1) detects and time parameter be recorded in and be locally stored
In device, united analysis after the completion to be detected；
Or it will test amount of deflection changing value that host (1) detects and time parameter is recorded in local storage, and lead to
Crossing data sending device (9), to be sent to remote terminal for statistical analysis.
A kind of deflection detector provided by the utility model can be improved by using the structure that torque motor drives
The promotion of the detection accuracy of deflection deformation, specific precision depends on applicable different scenes, is respectively provided with low resolution, middle resolution
Multiple schemes such as rate and high-resolution, to adapt to different working condition requirements.The deflection detector of the utility model each can
Enough independent detections, the damage of single detection device not will cause total data and scrap, and reliability is higher, and the utility model pair
The dependence of Changes in weather is relatively low.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples:
Fig. 1 is the overall structure diagram in the utility model.
Fig. 2 is the structural schematic diagram of detection device in the utility model.
Fig. 3 is another preferred structure schematic diagram of detection device in the utility model.
Fig. 4 is the control flow block diagram of the utility model.
Fig. 5 is another preferred structure schematic diagram of detection device in the utility model.
Fig. 6 is another preferred structure schematic diagram of detection device in the utility model.
In figure: detection host (1), torque motor (101), speed changer (102), rope reel (103) assist detection wheel
(104), the first cornerite guide wheel (105), the second cornerite guide wheel (106), guide wheel (107), sliding slot (108), spring (109), bracing wire
Formula displacement sensor (110), photoelectric sensor (111), detection rope (2), counterweight (3), construction (4), datum level (5), control
Device (6), angle transducer (7), torque controller (8), data sending device (9).
Specific embodiment
Embodiment 1:
In Fig. 1 ~ 6, a kind of deflection detector, it includes:
It detects host (1), is equipped with torque motor (101) in detection host (1), torque motor (101) and speed changer (102)
Connection, speed changer (102) is connect with rope reel (103) or torque motor (101) is directly connect with rope reel (103)；
Detection rope (2), detection rope (2) is on rope reel (103)；
Counterweight (3), counterweight (3) are connect with the end of detection rope (2)；
Detection rope sensor, for detecting the output length of detection rope.Thus structure, it is taut in detection rope (2) by detection
Length variation under straight state can be detected datum level (5) to the distance between construction (4) variation, i.e. deflection deformation value.
Torque motor (101) in this example is the motor for referring to output fixed end taken about the point of fixation.
Detection rope (2) in this example uses wirerope or composite rope, in another preferred scheme, using carbon fiber and steel wire
It restricts compound rope structure, is additionally provided with optical fiber in composite rope, be equipped with rings cut in the outer wall of optical fiber, in detection host (1), optical fiber
End is additionally provided with light source, to make detection rope (2) that can shine, avoids accidentally being touched.In further alternative scheme, counterweight (3)
It is interior to be equipped with LED light source and battery, it can be realized self-luminous, to indicate the position of counterweight, avoid night by false triggering.
In preferred scheme such as Fig. 2,3,5, the speed changer (102) be crash box, planetary transmission,
Cycloidal-pin wheel speed changer or worm and wormwheel speed changer.Crash box, planetary transmission and pendulum are preferably used in this example
Line pinwheel speed changer, in order to sense the torque of detection rope (2).It is certain using worm and wormwheel speed changer be also it is feasible,
It can use the self-locking function of worm and wormwheel speed changer, the relaxation that not excessive detection rope (2) becomes, torque motor (101) is difficult to examine
It surveys.
In preferred scheme such as Fig. 2, the detection rope sensor is photoelectric sensor (111), photoelectric sensor (111)
It is arranged near the detection rope outlet port of detection host (1)；Thus scheme, it is textured on the surface of detection rope, when detection is restricted
By photoelectric sensor (111), then the moving distance for detecting rope (2) is detected.To obtain
Or the detection rope sensor is angle transducer (7), angle transducer (7) is mounted on torque motor (101), becomes
In the connecting shaft of fast device (102) or rope reel (103).Thus structure converses detection rope by detecting the corner of rotatable parts
(2) length stretched out.
In preferred scheme such as Fig. 4, it is additionally provided with control device (6), detection rope sensor is electrically connected with control device (6),
Control device (6) is electrically connected with torque motor (101), and control device (6) is electrically connected with data sending device (9).In this example
Control device (6) uses single-chip microcontroller, such as AT series monolithic.It further include corresponding storage device.Control device (6) will be corresponding
Torque output signal be sent to torque motor (101), fixed output torque is provided according to signal by torque motor.From detection
The signal that sensor of restricting acquires is sent to long-range terminal from data sending device (9) by control device (6), such as hand-held
Formula terminal or industrial personal computer.Data sending device (9) in this example can use the network delivery mould based on ICP/IP protocol
Block, bluetooth module, or the ad hoc network agreement based on zigbee agreement are after networking, by the data of each deflection detector
It is unified to collect, then remote terminal is sent to by the router of ICP/IP protocol.Being additionally provided with power supply is that above-mentioned component is powered.
In preferred scheme such as Fig. 3, be additionally provided with auxiliary detection wheel (104), detection rope (2) around auxiliary detection wheel (104),
It is equipped with cornerite guide wheel in the two sides of auxiliary detection wheel (104), (2) have sufficiently large in auxiliary detection wheel (104) so that detection is restricted
Cornerite；
Angle transducer (7) are equipped on the axis of auxiliary detection wheel (104), to detect the output length of detection rope.Work as detection
Rope (2) is drawn out, then band dynamic auxiliary detection wheel (104) rotates, and the side wall of detection wheel (104) is preferably assisted to be equipped with rope groove, rope
It is equipped with the friction materials such as rubber, silica gel in slot, and assists detection wheel (104) that there is sufficiently large diameter, so that auxiliary detects
It takes turns between (104) and detection rope (2) without relative friction.Then detect the length and auxiliary of length or withdrawal that rope (2) is drawn out
The corner of detection wheel (104) can be corresponded to accurately, by the corner of detection auxiliary detection wheel (104), in conjunction with auxiliary detection wheel
(104) diameter can accurately calculate the length for showing that detection rope (2) is drawn out.
In preferred scheme such as Fig. 5, guide wheel (107) are additionally provided between auxiliary detection wheel (104) and rope reel (103),
Guide wheel (107) is slidably mounted in sliding slot (108), is additionally provided with detection rope (2) radial pressure phase for being subject to guide wheel (107)
The spring (109) of counteracting, guide wheel (107) are connect with fixed stay-supported type displacement sensor (110).Guide wheel (107) in this example
Be equivalent to tensioning wheel, the structure of sliding slot (108) used in this example, can also alternatively use the structure of swing rod, belong to
The equivalent replacement of the application sliding groove structure.The tension that rope (2) is detected by detection can facilitate and whether judge detection rope (2)
Through tightening, consequently facilitating detection deflection deformation numerical value.In this example, stay-supported type displacement sensor (110) cooperation spring is used
Scheme detects tension, therefore easily can replace different counterweight (3) and spring according to different operating conditions.Bullet in this example
Spring includes providing the tension spring of the spring and offer pulling force of elastic force.
It in preferred scheme, is additionally provided with control device (6), detection rope sensor is electrically connected with control device (6), for examining
The stay-supported type displacement sensor (110) for surveying detection rope (2) tension is electrically connected with control device (6)；Control device (6) and torque electricity
Machine (101) electrical connection, control device (6) are electrically connected with data sending device (9).Being additionally provided with power supply is that above-mentioned component is powered.
Thus structure, when stay-supported type displacement sensor (110) detects that detection rope (2) is tauted, and counterweight (3) is not displaced, by
Angle transducer detects to obtain, then can start the length that detection detection rope (2) is drawn out.I.e. angle transducer converts at this time
The length that circumferential distance, as detection rope (2) are drawn out.
Embodiment 2:
A kind of detection method using above-mentioned deflection detector, comprising the following steps:
S1, it will test host (1) and be fixedly connected with construction to be detected (4)；Construction (4) in this example uses bridge
Girder, along 5 meters of the every distance in the two sides of girder i.e. arrange a deflection detector.
S2, counterweight (3) are fixedly connected with detection rope (2) end；Counterweight in this example uses 50 ~ 500 grams of standard counterweights.Inspection
Lining rope (2) uses the carbon fiber composite steel wire rope of high-intensitive low deformation.The optical fiber that can be shone is equipped on detection rope (2) surface.
S3, counterweight (3) are transferred to datum level (5), torque motor (101) exports the first torque, at this time detection rope (2) quilt
It tightens and counterweight (3) passes through photoelectric sensor (111) or angle transducer (7) record detection rope (2) is drawn without departing from datum level (5)
Length out is as zero-bit；The as zero-bit of deflection deformation.
S4, when detecting again, torque motor (101) exports the first torque again, the length that record detection rope (2) pulls out
Changing value relative to zero-bit is as amount of deflection changing value；If deflection deformation occurs for girder corresponding position at this time, the position
The length that detection rope (2) pulls out can become smaller, and the difference with zero-bit is deflection deformation numerical value of the position at the moment.?
In preferred scheme, determine whether detection rope (2) is exceptionally straight by the feedback of stay-supported type displacement sensor (110), the program is used
In the detection rope longer scheme of (2) length, such as the length of detection rope (2) is more than 50 meters, and the self weight of side detection rope (2) is heavier only
First torque of fixed value is difficult to ensure that detection rope (2) is tauted.The first torque in this example refers to, it is sufficient to make detection rope (2)
It tightens, but is not enough to sling the torque of counterweight (3).
Realize that the deflection deformation of construction persistently detects by above step.
After detection is multiple, cumulative errors can be generated in photoelectric sensor (111) or angle transducer (7), lead to detection essence
Degree reduces.In preferred scheme, after one or many detections, torque motor (101) exports the second torque, will test rope (2)
It is sling completely with counterweight (3), until initial bit, restarts the length that detection detection rope (2) pulls out by initial bit, by counterweight
(3) it is lowered into datum level (5) again；Second torque refers to the output torque for being enough to lift by crane counterweight (3).Initial bit in this example,
There are many.For the scheme of photoelectric sensor (111), initial bit is scale of the setting in detection rope (2) outer wall, works as detection
To the scale, that is, the length that will test rope (2) pull-out replaces with the value of the initial bit, such as 10 meters, 5.5 meters or 3.15 meters etc.
Integer scale.Energy consumption can be reduced in this way.And for the scheme of angle transducer (7), initial bit is to be installed in detection rope (2)
The limiting card of outer wall, in hoisting process, limiting card is limited in the position of detection host (1) rope outlet, then stay-supported is displaced
Sensor (110) detects that the tension variation of detection rope (2) is more than preset value, at this time control device control moment motor (101)
It shuts down, then the initial position is the value that will test the length that rope (2) pull out and replace with the initial bit, is also possible to integer quarter
Degree.
Counterweight (3) is lowered into datum level (5) again, and torque motor (101) exports the first torque, and record detection rope (2) is drawn
Length out.
In preferred scheme, it will test amount of deflection changing value that host (1) detects and time parameter be recorded in and be locally stored
In device, united analysis after the completion to be detected；
In another optional scheme, or it will test amount of deflection changing value that host (1) detects and time parameter is recorded in
In local storage, and to be sent to remote terminal for statistical analysis by data sending device (9).
Using this programme, field monitoring is carried out to the amount of deflection variation of certain suspension cable bridge, Main Bridge scratches girder across 450m
Degree detection uses 44 deflection detectors, each 22 measuring points in upstream and downstream side.Through detecting, the deflection value in the middle part of girder becomes
Change maximum, reaches 155.3mm, and the variation of the amount of deflection of two sides is smaller, the deflection value of 1/4 cross-location changes in 70-80mm.And oblique pull
Cable bridge beam is acted upon by temperature changes larger, and amount of deflection increases variation with temperature and is more obvious.The advantage of the utility model is to arrange
It is very convenient, and detection accuracy is higher, it is affected by environment smaller.
Claims (8)
1. a kind of deflection detector, it is characterized in that it includes:
It detects host (1), is equipped with torque motor (101) in detection host (1), torque motor (101) and speed changer (102) are even
It connects, speed changer (102) is connect with rope reel (103) or torque motor (101) is directly connect with rope reel (103)；
Detection rope (2), detection rope (2) is on rope reel (103)；
Counterweight (3), counterweight (3) are connect with the end of detection rope (2)；
Detection rope sensor, for detecting the output length of detection rope.
2. a kind of deflection detector according to claim 1, it is characterized in that: the speed changer (102) is planet tooth
Wheel speed, cycloidal-pin wheel speed changer or worm and wormwheel speed changer.
3. a kind of deflection detector according to claim 1, it is characterized in that: the detection rope sensor is photoelectric transfer
Sensor (111), photoelectric sensor (111) setting is near the detection rope outlet port of detection host (1).
4. a kind of deflection detector according to claim 1, it is characterized in that: the detection rope sensor is angle sensing
Device (7), angle transducer (7) are mounted in the connecting shaft of torque motor (101), speed changer (102) or rope reel (103).
5. according to claim 1 or a kind of deflection detector described in 3,4 is examined it is characterized in that: being additionally provided with control device (6)
Lining rope sensor is electrically connected with control device (6), and control device (6) is electrically connected with torque motor (101), control device (6) with
Data sending device (9) electrical connection.
6. a kind of deflection detector according to claim 1, it is characterized in that: it is additionally provided with auxiliary detection wheel (104), detection
(2) are restricted around auxiliary detection wheel (104), cornerite guide wheel are equipped in the two sides of auxiliary detection wheel (104), so that detection rope (2) exists
Assist detection wheel (104) that there is sufficiently large cornerite；
Angle transducer (7) are equipped on the axis of auxiliary detection wheel (104), to detect the output length of detection rope.
7. a kind of deflection detector according to claim 6, it is characterized in that: in auxiliary detection wheel (104) and rope reel
(103) be additionally provided between guide wheel (107), guide wheel (107) is slidably mounted in sliding slot (108), be additionally provided with for guide wheel (107)
The spring (109) that detection rope (2) radial pressure being subject to offsets, guide wheel (107) and fixed stay-supported type displacement sensor
(110) it connects.
8. a kind of deflection detector according to claim 7, it is characterized in that: being additionally provided with control device (6), detection rope is passed
Sensor is electrically connected with control device (6), and the stay-supported type displacement sensor (110) and control for detecting detection rope (2) tension fill
Set (6) electrical connection；Control device (6) is electrically connected with torque motor (101), and control device (6) is electrically connected with data sending device (9)
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820913051.7U CN208283023U (en) | 2018-06-13 | 2018-06-13 | Deflection detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820913051.7U CN208283023U (en) | 2018-06-13 | 2018-06-13 | Deflection detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208283023U true CN208283023U (en) | 2018-12-25 |
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ID=64699349
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| CN201820913051.7U Active CN208283023U (en) | 2018-06-13 | 2018-06-13 | Deflection detector |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918057A (en) * | 2018-06-13 | 2018-11-30 | 武汉知行建科工程技术有限公司 | Deflection detector and detection method |
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2018
- 2018-06-13 CN CN201820913051.7U patent/CN208283023U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918057A (en) * | 2018-06-13 | 2018-11-30 | 武汉知行建科工程技术有限公司 | Deflection detector and detection method |
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Address after: 430078 East Lake New Technology Development Zone, Wuhan City, Hubei Province, 1-2 Floor of Building E1, Nanshan Guanggu Free Trade Port, No. 99, Gaoxin Six Road Patentee after: ZHI XING BUILDING SCIENCE ENGINEERING TECHNOLOGY Co.,Ltd. Address before: 430205 No. 11 Workshop, Phase 1, Changzui Deposit Optoelectronic Industrial Park, Tibetan Long Island, Jiangxia Economic Development Zone, Wuhan City, Hubei Province Patentee before: ZHI XING BUILDING SCIENCE ENGINEERING TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20230802 Address after: No. 6, 20th Floor, Building 9, Phase 2, Guannan Fuxing Pharmaceutical Park, No. 62 Guanggu Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province 430000 (Wuhan Area of Free Trade Zone) Patentee after: Hubei Zhurui Technology Co.,Ltd. Address before: 430078 East Lake New Technology Development Zone, Wuhan City, Hubei Province, 1-2 Floor of Building E1, Nanshan Guanggu Free Trade Port, No. 99, Gaoxin Six Road Patentee before: ZHI XING BUILDING SCIENCE ENGINEERING TECHNOLOGY Co.,Ltd. |