CN208238782U - Pylon deviates automatic measurement alarm system - Google Patents
Pylon deviates automatic measurement alarm system Download PDFInfo
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- CN208238782U CN208238782U CN201721850860.XU CN201721850860U CN208238782U CN 208238782 U CN208238782 U CN 208238782U CN 201721850860 U CN201721850860 U CN 201721850860U CN 208238782 U CN208238782 U CN 208238782U
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- China
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- pylon
- idler wheel
- ranging rope
- wirerope
- sash weight
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
A kind of pylon offset automatic measurement alarm system and method, including control cabinet, measuring device, warning device and control centre, measuring device include idler wheel, ranging rope, protective cover, sash weight, displacement sensor, are equipped with helical groove among idler wheel；Ranging rope one is terminated with wirerope, and wirerope sets the aperture of upper end and connects sash weight around penetrating protection after the helical groove of the idler wheel；Idler wheel is equipped with scale, and pointer is installed on roller shaft, and measurement ranging rope assembly and horizontal angle α use formula with the vertical displacement L of displacement sensor sash weightCalculate pylon horizontal-shift S, and with the peak excursion permissible value S that is set in control centremaxIt is compared.The utility model passes through the displacement of automatic real-time measurement ranging rope, calculates pylon deviant automatically using trigonometric function, and realize real-time display and warning function, and structure is simple, at low cost, is influenced by natural environment and climate factor small.
Description
Technical field
The utility model relates to a kind of technology of pylon squareness measurement in bridge construction, in particular to a kind of pylon offset
Automatic measurement alarm system.
Background technique
In Arch Bridge Construction, button tower is the carrier for undertaking knotted rope, anchor rope force transmission effect；Its principle is by arch ring casting process
In by concrete and hang the gravity of the generations such as indigo plant, power is transferred to by anchorage by knotted rope on button tower and the anchor cable of installation, is only detained
When the resultant force that rope and anchor cable mutually generate is zero, button tower remains plumbness, it is ensured that arch ring is kept in arch bridge casting process
The influence of linear and concrete not tension stress, can guarantee construction safety, due to Tension of Cable in arch ring casting process in this way
It can increase with the increase of weight concrete, pylon can be with bridge arch circle center vertical misalignment, and button tower offset is excessive to will affect arch ring
Absolute altitude and Stress Control, therefore the drift condition of moment monitoring pylon is wanted in construction, so as to when being shifted out allowed band
It takes corrective action in time.
In traditional measurement method, first is that measuring using theodolite, but manual operation is needed to measure, heavy workload and nothing
Method realizes real-time monitoring；Second is that being measured using laser range finder and other similar devices, but the influence of climate, environment is very big, such as
Misty rain day, difference variation etc. can produce bigger effect measurement accuracy.Moreover, above-mentioned equipment all cannot achieve real-time monitoring and
Auto-alarm function.
Utility model content
The purpose of this utility model is just to provide a kind of achievable automatic measurement, in real time monitoring and auto-alarm function, knot
Structure is simple, at low cost, and small pylon offset automatic measurement alarm system and method are influenced by natural environment and climate factor.
The solution of the utility model is such that
A kind of pylon offset automatic measurement alarm system, in the hinged idler wheel of frame body, the idler wheel solderless wrapped connection ranging rope assembly, institute
The one end for stating ranging rope assembly is connected to pylon, and the other end is connected to sagging sash weight；It is vertical that frame body is provided with measurement sash weight
The displacement sensor of displacement, institute's displacement sensors are connected to control centre, the control centre include touch screen with it is mutually powered-down
Device element.For parameter setting, real-time display drift condition, control warning device.
More specific technical solution further include: the idler wheel is equipped with scale, pointer is installed on roller shaft, for surveying
Measure the arc length of idler wheel rotation.
It is further: be fixed with protective cover in the frame body, the protective cover top is provided with hole, the ranging rope assembly from
The hole passes through, and sash weight is hung in protective cover.
Further: the ranging rope assembly includes ranging rope, wirerope, and the ranging rope, wirerope pass through connector
It is connected as ranging rope assembly, wherein in idler wheel, ranging rope connects pylon for wirerope solderless wrapped connection, and wirerope connects sash weight.
The utility model has the advantages that automatic measurement, in real time monitoring and auto-alarm function can be realized, structure is simple, cost
It is low, it is influenced by natural environment and climate factor small.
Detailed description of the invention
Fig. 1 is the pylon offset automatic measurement and alarm system schematic diagram of the utility model.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is pylon shift analysis figure.
Appended drawing reference in figure are as follows: 1, frame body 2, sash weight 3, protective cover 4, warning device 5, ranging rope 6, connection
First 7, idler wheel 8, wirerope 9, displacement sensor 10, touch screen 11, control centre 12, scale 13, pointer.
Specific embodiment
As shown in Figure 1, 2, the utility model includes control cabinet 1, measuring device, warning device and control centre.
Measuring device includes idler wheel 7, ranging rope 5, protective cover 3, sash weight 2, displacement sensor 9, and ranging rope assembly includes surveying
Away from rope 5, wirerope 8, the ranging rope 5, wirerope 8 are connected as ranging rope assembly by connector 6, wherein 8 solderless wrapped connection of wirerope
In idler wheel 7, ranging rope 5 connects pylon, and wirerope 8 connects sash weight 2；The idler wheel 7 is installed in control cabinet 1 by roller support and pushes up
Portion is equipped with helical groove among it；The ranging rope 5 using all very low material of coefficient of elasticity and coefficient of thermal expansion and contraction (such as
Carbon Fiber Cables), to guarantee measurement accuracy, one is terminated with a wirerope 8, and the wirerope 8 bypasses the helical form of the idler wheel 7
Protection is penetrated after groove to set the aperture of 3 upper ends and connect sash weight 2；The protective cover 3 is for preventing wind and other factors to sash weight
Influence；Institute's displacement sensors 9 are used for 2 vertical displacement value of real-time measurement sash weight, to determine pylon deviant.It is set to out
On the mounting hole of the protection cowl top panel, it is connect by data line with control centre 11.
The idler wheel 7 is equipped with scale 12, and pointer 13 is installed on roller shaft, can pass through the arc length of measurement idler wheel rotation
Determine pylon deviant.
Warning device 4 is set to above control cabinet 1, is connected by cable with control centre 11.
Control centre 11 includes touch screen and associated appliance element.For parameter setting, real-time display drift condition, control
Warning device 4 etc..
The alarm method used according to the utility model are as follows: comprising steps of
(1) measuring device setting steps: one end of the solderless wrapped connection ranging rope assembly on idler wheel 7, ranging rope assembly connects pylon,
The other end connects sagging sash weight 2；It is equipped with scale 12 on idler wheel 7, pointer 13 is installed on roller shaft, for measuring idler wheel
The arc length of 7 rotations, and the numerical value that the arc length measured is shown with control centre is mutually checked；The setting method of sash weight 2 be by
Sash weight is placed in closed protective cover 3, and protective cover 3 retain the hole passed through for ranging rope assembly, to reduce site environment pair
The influence factor of measurement；
(2) parameter setting step: as shown in figure 3, measuring and inputting ranging rope assembly from tower end to idler wheel by touch screen
Vertical height, that is, OA line segment length from tower end to idler wheel of length, that is, AC line segment length L, ranging rope assemblyH, rolling
Take turns to the horizontal distance i.e. length of OC line segment of pylonR；Peak excursion permissible value is set on the touchscreenS max ；
(3) pylon offset measurement step: when pylon generates offset, work of the ranging rope 5 in 2 gravity of pylon pulling force or sash weight
With the displacement of lower generation, the vertical displacement value of 9 real-time measurement sash weight 2 of displacement sensorL,And in real time by data transfer into control
The heart 11；
(2) alarm method: control centre then according to trigonometric function principle, calculates pylon horizontal-shiftS, and be set in
The peak excursion permissible value of control centreS max It is compared, when pylon horizontal offset valuesS >=S max When, control centre, which issues, to be referred to
It enables, triggering warning device is alarmed.
The calculation method of pylon horizontal-shift are as follows: as shown in figure 3, pylon generates offset, ranging rope terminal A point on pylon
B point is moved to, OB line segment length is equal to OA line segment length, and sash weight 2 is moved to E, vertical displacement value from DL,Therefore BC
The length of line segment isL-l, then:
It can be calculated according to cosine function formula:
It can be found out further according to inverse cosine function formula:
Due to β=90 °-α, therefore pylon horizontal-shift (i.e. EB line segment length) S can be found out are as follows:
S=Hsin β=Hsin (90 ° of-α)=
Control centre uses formula according to trigonometric function principle
It calculates pylon horizontal-shift S and is shown on touch screen 10 in real time, at this point, also being read by the scale variation on the idler wheel 7
The shift value of ranging rope 5 can mutually be checked with the numerical value shown on touch screen 10.Computer center in real time by S value be set in
The peak excursion permissible value S of control centremaxIt is compared, as S >=SmaxWhen, control centre issues instruction, triggering alarm dress
It sets and alarms.
Claims (4)
1. a kind of pylon deviates automatic measurement alarm system, it is characterised in that: in the hinged idler wheel (7) of frame body (1), the idler wheel
(7) solderless wrapped connection ranging rope assembly, one end of the ranging rope assembly are connected to pylon, and the other end is connected to sagging sash weight (2)；?
Frame body (1) is provided with the displacement sensor (9) of measurement sash weight (2) vertical displacement, and institute's displacement sensors (9) are connected in control
The heart (11), the control centre (11) include touch screen and associated appliance element, deviate feelings for parameter setting, real-time display
Condition, control warning device (4).
2. pylon according to claim 1 deviates automatic measurement alarm system, it is characterised in that: set on the idler wheel (7)
There are scale (12), pointer (13) are installed on roller shaft, for measuring the arc length of idler wheel rotation.
3. pylon according to claim 1 deviates automatic measurement alarm system, it is characterised in that: solid in the frame body (1)
Surely have protective cover (3), protective cover (3) top is provided with hole, and the ranging rope assembly is passed through from the hole, and sash weight (2) is hung in
In protective cover (3).
4. pylon according to claim 1 deviates automatic measurement alarm system, it is characterised in that: the ranging rope assembly packet
Ranging rope (5), wirerope (8) are included, the ranging rope (5), wirerope (8) are connected as ranging rope assembly by connector (6),
In idler wheel (7), ranging rope (5) connects pylon for middle wirerope (8) solderless wrapped connection, and wirerope (8) connects sash weight (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721850860.XU CN208238782U (en) | 2017-12-26 | 2017-12-26 | Pylon deviates automatic measurement alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721850860.XU CN208238782U (en) | 2017-12-26 | 2017-12-26 | Pylon deviates automatic measurement alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208238782U true CN208238782U (en) | 2018-12-14 |
Family
ID=64577820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721850860.XU Active CN208238782U (en) | 2017-12-26 | 2017-12-26 | Pylon deviates automatic measurement alarm system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208238782U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341662A (en) * | 2017-12-26 | 2019-02-15 | 贵州桥梁建设集团有限责任公司 | Pylon deviates automatic measurement alarm system and method |
| CN110345917A (en) * | 2019-08-14 | 2019-10-18 | 四川路桥华东建设有限责任公司 | The inclined measuring device of cable crane Sarasota tower |
-
2017
- 2017-12-26 CN CN201721850860.XU patent/CN208238782U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109341662A (en) * | 2017-12-26 | 2019-02-15 | 贵州桥梁建设集团有限责任公司 | Pylon deviates automatic measurement alarm system and method |
| CN110345917A (en) * | 2019-08-14 | 2019-10-18 | 四川路桥华东建设有限责任公司 | The inclined measuring device of cable crane Sarasota tower |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 550001, Guiyang, Guizhou Province, Yanan Road, No. 1 rainbow Xiang building, 26 floor Patentee after: GUIZHOU BRIDGE CONSTRUCTION GROUP Co.,Ltd. Patentee after: Liuzhou Qianqiao Technology Co.,Ltd. Address before: 550001, Guiyang, Guizhou Province, Yanan Road, No. 1 rainbow Xiang building, 26 floor Patentee before: GUIZHOU BRIDGE CONSTRUCTION GROUP Co.,Ltd. Patentee before: LIUZHOU QIAN BRIDGE ENGINEERING MATERIALS Co.,Ltd. |