CN206193782U - Device of oblique limb steel of control transmission line slope ratio - Google Patents
Device of oblique limb steel of control transmission line slope ratio Download PDFInfo
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- CN206193782U CN206193782U CN201621274022.8U CN201621274022U CN206193782U CN 206193782 U CN206193782 U CN 206193782U CN 201621274022 U CN201621274022 U CN 201621274022U CN 206193782 U CN206193782 U CN 206193782U
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Abstract
The utility model belongs to transmission line engineering field, concretely relates to device of oblique limb steel of control transmission line slope ratio. A device of oblique limb steel of control transmission line slope ratio, the device is including vertical frame, vertical frame includes montant and horizontal pole, contained angle between montant and the horizontal pole is the right angle, the montant passes through hinged joint with the movable rod. The outer arris of oblique limb steel is hugged closely to the frock that only needs to finish the adjustment when the angle steel is installed, and according to the angle of the oblique limb steel of the control of the horizontal bubble in the frock level bar, the horizontal bubble limb steel angle placed in the middle oblique in the level bar then reaches the designing requirement, accomplishes the accurate location of oblique limb steel angle. The utility model discloses the oblique limb steel in the bayonet basis of specially adapted transmission line engineering principal angle steel is the control of the sloping ratio of (side) face just, and the slope can reach within 1.6% than control accuracy, has the profound significance in this the type foundation construction of transmission line engineering.
Description
Technical field
The utility model belongs to work transmission line field, and in particular to a kind of control transmission line of electricity oblique cutting angle steel slope than
Device.
Background technology
It is 2*26km double that project 400kV line projects are strengthened in Midwest power network Portugal of Venezuela state that my company accepts
Division single back line, completely has 146 base steel towers, and iron tower foundation is all using main stub-angle-inserted foundation, the control of oblique cutting angle steel
Angular range is 11~22 degree, and design requirement oblique cutting angle steel slope than error less than 3%, required precision difficulty of construction high is big.
In main stub-angle-inserted foundation work progress, the key data items of control are opened including angle steel top rib root, basis top
Face angle rib root is opened, the angle steel top rib discrepancy in elevation, angle steel just (side) face slope than etc..Whether angle steel slope than meets design requirement, is such
Whether rationally one of the key technical index on basis, be related to basic stress, the connector portions between basic angle steel and iron tower main material
Divide whether whether the tight, gradient is consistent, therefore should strictly be controlled in construction.Traditional control oblique cutting angle steel slope is than usually plumb bob method
And theodolite method of determining and calculating, and plumb bob measurement oblique cutting angle steel slope than mode it is more coarse, transit survey oblique cutting angle steel slope than
Method is relatively complicated, low construction efficiency and precision is difficult to control to.
Plumb bob measure oblique cutting angle steel slope than deficiency：1) list edge (the especially angle steel top rib lifting rope for being formed in galvanizing process
Suspension centre at) be likely to result in error；2) meter ruler is extremely difficult to vertical with the angle of plumb bob lifting rope and angle steel；3) plumb bob lifting rope is by outer
Boundary's (such as strong wind) influence causes to swing and the error of generation；4) accidental error that misoperation causes etc..
Transit survey oblique cutting angle steel slope than deficiency：1) basic top surface angle steel rib root is opened and is difficult to measure and needs to consider angle
Steel thickness；2) computing formula is cumbersome, and efficiency is low and easy calculating is malfunctioned；3) influence of support member and extreme terrain of angle steel is installed very
Easily block the sight line of the basic top surface angle steel rib of theodolite viewing.
Above two measuring method, the error for actually producing is likely larger than 5%, in order to ensure the slope ratio of angle steel can expire
Sufficient design requirement again can be simple and easy to control, improves efficiency, and the author is by Venezuela 400kV line projects practical studies and application
In explore it is a kind of it is quick, be precisely controlled oblique cutting angle steel slope than frock.
The content of the invention
Main stub-angle-inserted foundation difficulty of construction is big, the location control complex process of oblique cutting angle steel during concrete is cast,
Slightly neglecting may all do over again caused by the control of oblique cutting angle steel is bad.Improve precision of the oblique cutting angle steel slope than control, guarantee installation
Quality, reduction construction cost, shortening construction period are always that each construction of power transmission and transformation enterprise and scientific research institution try to explore and solve
Important technological problems.The research of the frock, manufacture and design and application be exactly in order to solve power transmission and transformation field angle steel slope than control
Technical barrier.
The technical scheme that the utility model is used is：
It is a kind of control transmission line of electricity oblique cutting angle steel slope than device, described device includes vertical frame, and the vertical frame includes
Montant and cross bar, the angle between the montant and cross bar are right angle, and the montant is connected through the hinge with motion bar.
Preferably, the cross bar is provided with scale.
Preferably, the cross bar is provided with the groove for being available for bolt to slide, and the motion bar is provided with bubble.
The utility model is, according to right angled triangle principle, to indicate scale by a fixed right-angle side L, another adjustable
Right-angle side △ L and the hypotenuse of parallel fixed horizon rule carry out adjustment angle θ (angle, θ be fixed right-angle side L and parallel fixed level
The angle of chi hypotenuse), the angle of oblique cutting angle steel both θ values are learnt by construction drawing, and known fixed right-angle side length L, lead to
The length that trigonometric function fundamental formular (1) calculates adjustable right-angle side △ L is crossed, adjustable right-angle side is adjusted to the scale value of △ L and is consolidated
Fixed, now frock angle, θ is both the control angle of oblique cutting angle steel, the frock for finishing need to will be only adjusted when angle steel is installed and is close to tiltedly
The outer rib of limb steel, the horizontal bubble in frock level chi controls the angle of oblique cutting angle steel, when the horizontal bubble in horizon rule
Oblique cutting angle steel angle placed in the middle then reaches design requirement, completes the precise positioning of oblique cutting angle steel angle.
Described device is applied to the control of oblique cutting angle steel, the friendship of the junction of the cross bar and montant to motion bar and montant
The distance at place is connect for L, the motion bar is θ with the angle of montant, the junction of the cross bar and montant to motion bar with
The distance of the junction of cross bar is △ L；
△ L=Ltan θ (1) (1)；
According to geological theorems and it is known just or side slope ratio draws formula (2), and calculate angle steel pair using formula (2)
Angle lapping bevel angle θ, formula (1) is substituted into so as to draw △ L by θ values；
In formula：θ is angle steel diagonal angle；Tan α are side slope ratio；Tan β are front slope ratio；
When iron tower foundation is for square basis,
θ is obtained than tan α by measuring side slope, θ values formula (1) is substituted into so as to draw △ L, then according to △ L distances
The adjustable right-angle side of mobile device；
When iron tower foundation is rectangle basis, rectangle basis tower is just or side slope is than unequal, straight according to formula (2)
Connect after calculating angle steel diagonal angle θ, θ values are substituted into formula (1) so as to draw △ L, then according to △ L apart from mobile device
Right-angle side；
The outer rib of oblique cutting angle steel is close in device montant inner side, the horizontal bubble in motion bar controls the angle of oblique cutting angle steel
Degree, when the horizontal bubble of motion bar oblique cutting angle steel angle placed in the middle then reaches design requirement, completes the precisely fixed of oblique cutting angle steel angle
Position, is then fixed with bolt regulator.
The utility model beneficial effect：
1) horizon rule is integrated with positioning tool, easy to operate, and the degree of accuracy is high；
2) mobile right-angle side carries accurate scale, and adjustment angle is simple and easy to control and high precision；
3) this frock has a wide range of application, be applicable to polymorphic type oblique cutting angle steel slope than control, control angular range be 0~
26.5 degree；
4) this frock making is simple, low cost, economical and practical.
5) the utility model is particularly well-suited to the main stub-angle-inserted foundation oblique cutting angle steel of work transmission line just (side) face slope
The control of ratio, (GB 50233-2014 110~750kV Overhead Transmission Line Constructions within slope can reach 1.6% than control accuracy
And in acceptance specification table 6.1.9 requirements within 3%), there is far-reaching meaning in work transmission line the type foundation construction
Justice.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Compare schematic diagram in Fig. 2 oblique cutting angle steel slope；
Fig. 3 oblique cutting angle steel angular surveying schematic diagrames；
Fig. 4 oblique cuttings angle steel reverses control schematic diagram；
In figure：Montant 1, cross bar 2, motion bar 3, hinge 4, groove 5, bolt 6, bubble 7.
Specific embodiment
The utility model is further illustrated with reference to case study on implementation and accompanying drawing, but case study on implementation will not be constituted to this reality
With new limitation.
Embodiment 1
It is a kind of control transmission line of electricity oblique cutting angle steel slope than device, described device includes vertical frame, and the vertical frame includes
Montant 1 and cross bar 2, the angle between the montant 1 and cross bar 2 is right angle, and the montant 1 is connected with motion bar 3 by hinge 4
Connect.
Preferably, the cross bar 2 is provided with scale.
Preferably, the cross bar 2 is provided with the groove 5 for being available for bolt 6 to slide, and the motion bar 3 is provided with bubble 7.
Lime light：
1st, the specific size of device, the right-angle side that we fix according to oblique cutting angle steel protruded length and size, determining device
L, the length for indicating the adjustable right-angle side △ L of scale, hypotenuse and horizon rule.
2nd, the device the selection of material, steel used by device select Q345C, using horizon rule of the precision more than 1 grade.
3rd, the processing of the device, mounting process, are first welded adjustable right-angle side with fixed right-angle side, need to protect during welding
Card squareness, and the scale and regulation chute of adjustable right-angle side are processed by master scale, then by horizon rule and hypotenuse bolt
Parallel fixation is carried out, the depth of parallelism and linearity need to be ensured, then fixed right-angle side is attached with hypotenuse by rotating shaft, its remaining part
Part also carries out welding assembly by corresponding requirements.
4th, the device should be noted that in the mill：1) linearity of fixed right-angle side and the finish of inner side be must assure that；2)
Must assure that mobile right-angle side scale is consistent with master scale；3) horizon rule needs parallel fixation with hypotenuse band iron；4) must assure that
Adjustable right-angle side is 90 degree with the angle of fixed right-angle side.
Table 1 control transmission line of electricity oblique cutting angle steel slope than device materials table
| Title | Specification | Length (mm) | Quantity (individual) | Remarks |
| Angle steel | L30×30×5 | 400 | 1 | |
| Band iron | -50×5 | 200 | 1 | Need with a scale |
| Band iron | -30×20 | 350 | 1 | |
| Rotating shaft | φ20 | 1 | ||
| Horizon rule | 50×25 | 150 | 1 | |
| Fixing bolt | M6 | 30 | 1 |
Slope than calculating
Carefully check design drawing, and learnt from drawing foundation pattern, angle steel top rib root open, the angle steel top rib discrepancy in elevation, angle
The steel just data such as (side) face slope ratio, after data needed for obtaining, are respectively calculated according to type of foundation, according to the characteristic on basis,
Square basis and rectangle basis can be divided into.
The adjustable right-angle side △ L of scale are indicated by a fixed right-angle side L and another to change angle, θ, Ran Houyi
The length of adjustable right-angle side △ L is calculated according to fundamental formular (1).
△ L=Ltan θ (1)
As shown in Fig. 2 formula (2) is drawn according to geological theorems and known just (side) face slope ratio, and using formula (2) meter
Angle steel diagonal angle θ is calculated, θ values are substituted into formula (1) so as to draw △ L.
In formula：θ is angle steel diagonal angle；Tan α are side slope ratio；Tan β are front slope ratio.
Square basis
Square basis is relatively simple, and than identical, its slope substitutes into formula (2) than tan α=tan β on tower just (side) face slope
Go out formula (3).
After known angle steel diagonal angle θ, θ values are substituted into formula (1) so as to draw △ L, it is then mobile according to △ L distances
The self-control adjustable right-angle side of angle measurement equipment, locked fixing bolt after the completion of adjustment, for controlling inclination angle.
Rectangle basis
Rectangle basis tower just (side) face slope, than unequal, angle steel diagonal angle θ is directly calculated according to formula (2)
Afterwards, θ values are substituted into formula (1) so as to draw △ L, then according to the adjustable right angle of the mobile self-control angle measurement equipment of △ L distances
Side, locked fixing bolt after the completion of adjustment, for controlling inclination angle.
The control of oblique cutting angle steel
Step 1：As shown in Figure 3 the control transmission line of electricity oblique cutting angle steel slope that will fix than device angle steel on the inside of be close to it is oblique
The outer rib of limb steel, according to control transmission line of electricity oblique cutting angle steel slope than device horizon rule in horizontal bubble control oblique cutting angle steel
Angle, when the horizontal bubble oblique cutting angle steel angle placed in the middle in horizon rule then reaches design requirement, completes the essence of oblique cutting angle steel angle
Certainly position, then with band gaily decorated basket bolt regulator by its interim fixation.
Step 2：The principle of horizontal range is measured using theodolite, steel tape, the oblique cutting being angularly positioned has been moved in parallel
Angle steel, makes that the root of oblique cutting angle steel is opened and the discrepancy in elevation reaches design requirement.
Step 3：By taking complex rectangle basis as an example, as shown in figure 4, being opened according to the angle steel top rib just root of (side) face half
Two auxiliary piles of a, b are followed closely out, then aBb three point attachments is controlled the torsion of angle steel using cord, until oblique cutting angle steel both sides are tight
Patch cord.
Step 4：Above step will be checked repeatedly, open until root, the discrepancy in elevation, slope ratio, reverse it is errorless untill.
The above embodiments are only optimal technical scheme of the present utility model, and are not construed as limit of the present utility model
System, the feature in embodiment and embodiment in the application can mutually be combined in the case where not conflicting.This practicality is new
Technical characteristic in the technical scheme that the protection domain of type should be recorded with claim, including the technical scheme of claim record
Equivalents are protection domain.Equivalent i.e. within this range is improved, also protection domain of the present utility model it
It is interior.
Claims (3)
1. it is a kind of control transmission line of electricity oblique cutting angle steel slope than device, described device includes vertical frame, and the vertical frame includes perpendicular
Bar（1）And cross bar（2）, it is characterised in that：The montant（1）And cross bar（2）Between angle be right angle, the montant（1）With
Motion bar（3）By hinge（4）Connection.
2. device according to claim 1, it is characterised in that：The cross bar（2）It is provided with scale.
3. device according to claim 1, it is characterised in that：The cross bar（2）It is provided with and is available for bolt（6）That slides is recessed
Groove（5）, the motion bar（3）It is provided with bubble（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621274022.8U CN206193782U (en) | 2016-11-24 | 2016-11-24 | Device of oblique limb steel of control transmission line slope ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621274022.8U CN206193782U (en) | 2016-11-24 | 2016-11-24 | Device of oblique limb steel of control transmission line slope ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206193782U true CN206193782U (en) | 2017-05-24 |
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ID=58723897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621274022.8U Active CN206193782U (en) | 2016-11-24 | 2016-11-24 | Device of oblique limb steel of control transmission line slope ratio |
Country Status (1)
| Country | Link |
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| CN (1) | CN206193782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106446477A (en) * | 2016-11-24 | 2017-02-22 | 中国葛洲坝集团电力有限责任公司 | Control device of slope of embedded inclined-angle-steel of the power transmission cable and application thereof |
-
2016
- 2016-11-24 CN CN201621274022.8U patent/CN206193782U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106446477A (en) * | 2016-11-24 | 2017-02-22 | 中国葛洲坝集团电力有限责任公司 | Control device of slope of embedded inclined-angle-steel of the power transmission cable and application thereof |
| CN106446477B (en) * | 2016-11-24 | 2023-10-27 | 中国葛洲坝集团电力有限责任公司 | Device for controlling slope ratio of oblique angle steel of power transmission line and application |
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