CN101556144B - Laser longitude and latitude multifunctional fast arc-measuring apparatus as well as measuring and calculating method thereof - Google Patents

Abstract

The invention discloses a laser longitude and latitude multifunctional fast arc-measuring apparatus as well as a measuring and calculating method thereof for measuring arc on the main girder of a bridge crane. The arc-measuring apparatus consists of a commonly used microtubular laser distance meter and a theodolite; the microtubular laser distance meter is permanently fixed on the drawtube shell of an optical theodolite or an electronic theodolite with a special processing technology; and the tubular axial center line of the microtubular laser distance meter is parallel to the drawtube axial center line of the theodolite. A calculator is further arranged on the arc-measuring apparatus, wherein, the measuring method measures the slant range, the elevation angle and the horizontal angle of three object measuring points which are arranged at two edges and one center on the main girder of the bridge crane at the same position with the arc-measuring apparatus so as to calculate the arc on the main girder. The arc-measuring apparatus has the advantages that structure is compact, apparatus is light and flexible, measuring crew does not need to assemble and adjust each component on the spot, operation is simple and convenient, and measuring precision and efficiency is high; and the arc-measuring apparatus can be widely applied to other measuring fields.

Description

Multi-functional quick arch measurer of laser longitude and latitude and measurement computing method thereof

Technical field

The present invention relates to a kind of measuring equipment of bridging crane main beam camber and measure computing method, specifically is a kind ofly to adjust the distance with the mensuration of angle and then accomplish the multi-functional quick arch measurer of laser longitude and latitude that the bridging crane main beam camber measures fast and measure computing method.

Background technology

Over a long period of time, relevant departments such as crane manufacturing installation and special equipment check all are to adopt to draw steel wire to survey the arch method to the detection means of bridging crane main beam camber basically.But this survey arch method exists the deficiency of these several respects: 1. this method of operation has certain danger on the high crane span structure of height; 2. this method can't measure the camber at the mono beam crane in bridge type of usefulness at all; 3. this method troublesome poeration, steel wire is also hindered hand easily; 4. the detecting instrument heaviness of this method is stiff, and it is very inconvenient to carry machine; 5. also will table look-up during result of calculation adds the sagging modified value of steel wire, and the calculating of whole operation process and measurement result all is manual operations, very time-consuming.So this has just determined that this method is not to survey the method for the ideal of arch, more be difficult to realize survey fast automatically encircleed.Each associated row seldom even had not basically re-used this method already and had surveyed arch now.

Closely during the last ten years; Relevant industries technician is exploring spirit-leveling instrument survey arch method; I also participate; And self design the drop hammer type scale, cooperate spirit-leveling instrument to survey arch, obtained some effects (this method of this human is surveyed the paper of arch and once published in 131 pages of " electromechanical engineering technology " the 7th phase in 2008).But I feel that this method still exists some to be difficult to the technical barrier that solves at short notice after further inquiring into.For example using this method to survey arch will utilize dolly to put down suspension hook to hang up and hang chi; When surveying arch so the dolly deadweight to camber that inevitable influence how to go scientifically to eliminate, the actual span when how to confirm to survey arch exactly and measurement data how fast reduction all remain further to be gone exploration and improvement for problems such as results.In addition, utilize spirit-leveling instrument to be combined on the machine in addition or machine is transferred upright various scales and cooperated methods such as surveying arches, but these all to be the time-consuming difficulty of trouble or danger be referred to as desirable survey arch method.

In recent years, having occurred utilizing the infrared distance measuring device to measure 3 height below the crane span structure again and then calculate the exploratory product of camber, though this survey method is also possible theoretically, is not good method.The measuring basis plane is made in leveling because this survey method will be utilized spirit-leveling instrument; Again viameter on three placement planes of measuring websites all adjustment to the measuring basis plane; Though this also can implement, cumbersome time-consuming, and also the camber that measures also is the camber of girder bottom camber line.The expert knows, because the manufacturing processing technic of each crane manufacturer different and install and use the factors such as local deformation that rear axle stand possibly exist, the camber that measures of this method may not be just can real embodiment go out the camber of girder so.And this survey arch method also is difficult to realize the automatic computing of measurement result.

Electronic theodolite recently on surveying instrument market, also occurred and just mixed into a complete surveying instrument combination in measure field by electronic theodolite and infrared distance measuring device, electronic documentation---be bundled into the so-called total powerstation of set meal formula.Though these emerging surveying instruments have its many characteristic in use; But they are not custom-designed instrumentation after all to surveying arch; Exist many inconveniences equally so survey arch with these instruments: independent electronic theodolite can't measure camber; Though and so-called total powerstation can measure camber through a whole set of special operation; But it exists in the trouble of a plurality of parts of assembled on site adjustment, exist each measuring point measured before troubles of adjustment viameter transverse axis and transit lens barrel transverse axis again all, comparison inconvenience operates; And technical requirement is higher; Common people also may not just can assemble adjustment in the short time at the scene, can import electronic documentation automatically and still need manual each measuring point that carry out to calculate one by one and integrate reasons such as just can drawing measurement result again though add measurement data, so also do not see so far directly and survey the report of arch fast with it.

Summary of the invention

The objective of the invention is to overcome above-mentioned all deficiencies, provide a kind of easy and simple to handle, safe and reliable, accuracy of detection is high, the multi-functional quick arch measurer of laser longitude and latitude that can calculate testing result automatically and have multi-functional characteristic.

Another object of the present invention is to provide a kind of the said equipment that utilizes that the bridging crane main beam camber is measured Calculation Method.

To achieve these goals; The technical scheme that the present invention adopts is: the multi-functional quick arch measurer of laser longitude and latitude; Form by mini-type tubular airborne laser range finder, optics or electronic theodolite; Both original separately inner structures are constant and do not have what contact; Just be permanently secured to the mini-type tubular airborne laser range finder on the lens barrel shell of optics or electronic theodolite and the socket longitudinal center line of mini-type tubular airborne laser range finder parallel with the lens barrel longitudinal center line of transit, the measuring basis face of viameter is set in the rotating shaft center of transit lens barrel accurately.

Also be provided with micro calculator on the multi-functional quick arch measurer of said laser longitude and latitude, counter is connected with mini-type tubular airborne laser range finder, electronic theodolite respectively through data line.

Look in the distance mirror stadimeter or the Austrian A that produces that described mini-type tubular airborne laser range finder adopts Shanghai triumph measuring technology company limited to produce ₅Type is handed the cartridge type airborne laser range finder; The DJK that said optical theodolite adopts the 3rd optical instrument factory, Shanghai to produce ₆The WILD T that type optical theodolite or optical instrument factory, northwest produce through II type optical theodolite or Switzerland's product ₂The type optical theodolite; The ET-02/05/05 Type B electronic theodolite that the southern instrument of surveying and mapping of electronic theodolite or the Guangzhou company that said electronic theodolite adopts wide ground of Xin Bei, Beijing Instr Ltd. to produce produces.

Method to the bridging crane main beam camber is measured may further comprise the steps:

1, arch measurer is placed on the ground location in the place ahead of crane girder, and also is the leveling of transit base, make the measurement surface level the arch measurer base.

2, arch measurer the ground same position to bridging crane main beam on three target measurement points in two limits one carry out the measurement at oblique distance and pitch angle.

3, utilize above-mentioned oblique distance and pitch angle just can obtain the height of three measuring points to same measurement surface level; Deduct the average height of both sides measuring point then with the height of middle measuring point; Just can draw the sagitta of girder; Horizontal range and the instrument lens barrel that utilizes two limit measuring points again accurately obtains the actual span when surveying arch in the surface level horizontal angle that measuring point goes to the another side measuring point from one side, utilizes sagitta just can obtain desired camber divided by actual span at last.The camber computing formula of being derived is (F=H/S):

$\frac{2{\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="H2009100386557E00011.png"\; state="\{\{state\}\}">L</figure-callout>}}_2\&CenterDot;\mathrm{Sin}{Q}_2-{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1\&CenterDot;{\mathrm{SinQ}}_1-{\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_3\&CenterDot;{\mathrm{SinQ}}_3}{2\sqrt{{{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1}^2\&CenterDot;{\cos }^2{\mathrm{<figure-callout\; id="1"\; label="Q"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">Q</figure-callout>}}_1+{{\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_3}^2\&CenterDot;{\cos }^2{Q}_3-2{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1\&CenterDot;{\mathrm{<figure-callout\; id="1"\; label="cos\; Q"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">cos</figure-callout>}Q}_1\&CenterDot;{\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_3\&CenterDot;\mathrm{<figure-callout\; id="3"\; label="cos\; Q"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">cos</figure-callout>}{Q}_{}{}_3\&CenterDot;\cos \mathrm{\&alpha;}}}$

Wherein, L ₁/ Q ₁, L ₂/ Q ₂, L ₃/ Q ₃Be the oblique distance and the pitch angle of three measuring points; α be the arch measurer lens barrel from one side measuring point to the level angle of another side measuring point.

Described measurement Calculation Method, this method is further comprising the steps of: with the camber computing formula of being derived serves as according to the calculation procedure of writing counter, after counter receives the measurement data of being imported, calculates desired camber automatically.

Beneficial effect of the present invention: this arch measurer compact conformation, light and handy flexibly, survey crew do not need each parts of assembly and adjustment at the scene, to do not need again before each measuring point range finding yet adjustment viameter and transit transverse axis parallel, not need that the measurement data of each measuring point is carried out the work efficiency that hand computation one by one, simple to operation, one-stop survey encircle very high; Because of the distance accuracy of airborne laser range finder can reach 1 millimeter; Its precision of the sagitta that calculates so also can reach 1 millimeter, and combines the precision of the camber value that, 20 meter or longer actual span calculate higher; This arch measurer is a multi-functional measuring equipment, can be widely used in other field of measurement.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is done further explain:

Fig. 1 is the structural representation of invention;

Fig. 2 is the synoptic diagram that utilizes Fig. 1 to measure;

Fig. 3 is a measurement process flow diagram shown in Figure 2.

Among the figure: 1, mini-type tubular airborne laser range finder; 2, transit; 3, lens barrel; 4, socket longitudinal center line; 5, lens barrel longitudinal center line; 6, counter; 7, bridging crane main beam; 8, the multi-functional quick arch measurer of laser longitude and latitude; 9, rotating shaft.

Embodiment

As shown in Figure 1; The multi-functional quick arch measurer of laser longitude and latitude; Mini-type tubular airborne laser range finder 1, electronic theodolite 2 by present common use are formed, and mini-type tubular airborne laser range finder 1 is permanently secured on the shell of lens barrel 3 of electronic theodolite 2 and the socket longitudinal center line 4 of mini-type tubular airborne laser range finder and the lens barrel longitudinal center line 5 range finding reference fields parallel, mini-type tubular airborne laser range finder 1 of electronic theodolite are set in 9 places, rotating shaft center of the lens barrel 3 of transit 2 accurately.Wherein, the mirror stadimeter of looking in the distance of mini-type tubular airborne laser range finder 1 employing Shanghai triumph measuring technology company limited production; The ET-02/05/05 Type B electronic theodolite that south, electronic theodolite 2 employing Guangzhou instrument of surveying and mapping company produces.

Also be provided with counter 6 on the multi-functional quick arch measurer of said laser longitude and latitude, counter 6 is connected with mini-type tubular airborne laser range finder 1, electronic theodolite 2 respectively through data line.

Like Fig. 2, shown in Figure 3, the bridging crane main beam camber is measured Calculation Method, may further comprise the steps:

1, arch measurer 8 is placed on the ground location in the place ahead of crane girder 7, and, makes the measurement surface level base (also being the base of the transit) leveling of arch measurer.

2, arch measurer 8 same ground location to bridging crane main beam on three target measurement points in two limits one carry out the measurement at oblique distance and pitch angle.

3, utilize above-mentioned oblique distance and pitch angle just can obtain the height of three measuring points to same measurement surface level; Deduct the average height of both sides measuring point then with the height of middle measuring point; Just can draw the sagitta of girder; Horizontal range and the instrument lens barrel that utilizes two limit measuring points again accurately obtains the actual span when surveying arch in the surface level horizontal angle that measuring point goes to the another side measuring point from one side, utilizes sagitta just can obtain desired camber divided by actual span at last.

We learn on the arch schematic diagram from surveying, as the oblique distance and the pitch angle L of 1,2,3 three measuring point ₁/ Q ₁, L ₂/ Q ₂, L ₃/ Q ₃And after the arch measurer lens barrel horizontal angle α that goes to measuring point 3 from measuring point 1 level measured, the discrepancy in elevation and horizontal range H that their are corresponding ₁, S ₁, H ₂, H ₃, S ₃Can obtain easily through the method for solving a triangle:

H ₁＝L ₁·SinQ ₁ H ₂＝L ₂·SinQ ₂ H ₃＝L ₃·SinQ ₃

S ₁=L ₁CosQ ₁S ₂Demand is not separated S ₃=L ₃CosQ ₃

Further obtain sagitta and actual span so again and obtained the camber thing that just when the water comes, a channel is formed of overhead travelling crane at last through sagitta and actual span:

Sagitta H=H ₂-(H ₁+ H ₃)/2=(2L ₂SinQ ₂-L ₁SinQ ₁-L ₃SinQ ₃)/2

The actual span of actual span S=equivalence $S^{\&prime;}=\sqrt{{{\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">S</figure-callout>}}_1}^2+{{\mathrm{<figure-callout\; id="3"\; label="S"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">S</figure-callout>}}_3}^2-2{\mathrm{<figure-callout\; id="1"\; label="S"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">S</figure-callout>}}_1\&CenterDot;{\mathrm{<figure-callout\; id="3"\; label="S"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">S</figure-callout>}}_3\&CenterDot;\mathrm{Cos}\mathrm{\&alpha;}}$

$=\sqrt{{{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1}^2\&CenterDot;{\cos }^2{\mathrm{<figure-callout\; id="1"\; label="Q"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">Q</figure-callout>}}_1+{{\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_3}^2\&CenterDot;{\cos }^2{Q}_3-2{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1\&CenterDot;{\mathrm{<figure-callout\; id="1"\; label="cos\; Q"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">cos</figure-callout>}Q}_1\&CenterDot;{\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_3\&CenterDot;{\mathrm{<figure-callout\; id="3"\; label="cos\; Q"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">cos</figure-callout>}Q}_3\&CenterDot;\cos \mathrm{\&alpha;}}$

∴ bridging crane main beam camber is (F=H/S):

$\frac{2{\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="H2009100386557E00011.png"\; state="\{\{state\}\}">L</figure-callout>}}_2\&CenterDot;{\mathrm{SinQ}}_2-{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1\&CenterDot;{\mathrm{SinQ}}_1-{\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_3\&CenterDot;{\mathrm{SinQ}}_3}{2\sqrt{{{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1}^2\&CenterDot;{\cos }^2{\mathrm{<figure-callout\; id="1"\; label="Q"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">Q</figure-callout>}}_1+{{\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_3}^2\&CenterDot;{\cos }^2{Q}_3-2{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1\&CenterDot;{\mathrm{<figure-callout\; id="1"\; label="cos\; Q"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">cos</figure-callout>}Q}_1\&CenterDot;{\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_3\&CenterDot;\mathrm{<figure-callout\; id="3"\; label="cos\; Q"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">cos</figure-callout>}{Q}_{}{}_3\&CenterDot;\cos \mathrm{\&alpha;}}}$

So far, we have obtained to calculate total algebraic expression of camber.As long as we come to write calculation procedure for special calculator by this algebraic expression, special calculator will be according to the survey arch data L of given programming to input so ₁/ Q ₁, L ₂/ Q ₂, L ₃/ Q ₃, α carries out automatic computing.When we when " equaling " key, special calculator will show the camber value that computing has been got well.

The multi-functional quick arch measurer of this laser longitude and latitude is in the application in other field

The multi-functional quick arch measurer of this laser longitude and latitude can increase the Design Mode of multiple operation program easily according to many concrete conditions; Thereby this instrument also can be switched to easily carry out multiple spot oblique distance, multiple spot level distance, the multiple spot discrepancy in elevation, arbitrary object height, building wall and enterprise to need the settling amount of the large-scale workpiece that perpendicularity deviation is measured, settling amount need be measured by enterprise of the large-scale workpiece of measuring vertical degree deviation to measure, and the measurement aspect fast automatically of the measurement of correlation project of multiple infrastructural projects such as highway, railway, bridge, water conservancy and hydropower, agricultural planning, topographic mapping, building constructions.

Such as: this instrument is used for all automatic measurement of tower crane pylon perpendicularity deviation, and we can press $\mathrm{\&delta;}=\sqrt{(2-2\mathrm{Cos}\mathrm{\&alpha;})/\mathrm{Tg\&beta;}}$ (wherein δ is the pylon perpendicularity deviation; α is a pylon at the effective maximum horizontal angle of measuring height scope bias internal pedal line, and β is the pitch angle of pylon from the highest measuring point to arch measurer central point) algebraic expression come the operation program of design special counter to measure calculating.

For another example: when this instrument was used for any 2 distances in space or says the linear measure longimetry of the arbitrary elongate objects in space, we can press $m=\sqrt{{{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1}^2+{{\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="H2009100386557E00011.png"\; state="\{\{state\}\}">L</figure-callout>}}_2}^2-2{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1\&CenterDot;{\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="H2009100386557E00011.png"\; state="\{\{state\}\}">L</figure-callout>}}_2\&CenterDot;{\mathrm{SinQ}}_1\&CenterDot;{\mathrm{SinQ}}_2-2{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1\&CenterDot;{\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="H2009100386557E00011.png"\; state="\{\{state\}\}">L</figure-callout>}}_2\&CenterDot;{\mathrm{<figure-callout\; id="1"\; label="Cos\; Q"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">Cos</figure-callout>}Q}_1\&CenterDot;{\mathrm{<figure-callout\; id="2"\; label="Cos\; Q"\; filenames="H2009100386557E00011.png"\; state="\{\{state\}\}">Cos</figure-callout>}Q}_2\&CenterDot;\mathrm{Cos}\mathrm{\&alpha;}}$ (wherein m is any 2 distances in space or the length of saying the arbitrary elongate objects in space, L ₁, L ₂, Q ₁, Q ₂, α is respectively any oblique distance in space, pitch angle and horizontal angle at 2) algebraic expression come the operation program of design special counter to measure calculating.

Again such as: this instrument also can be used for all automatic measurement of two big Car Track gauge deviations of overhead travelling crane and all automatic measurement of two trolley track diagonal line of double girder overhead crane deviation, and we can press

$\mathrm{\&Delta;m}=\sqrt{{{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1}^2\&CenterDot;{\cos }^2{\mathrm{<figure-callout\; id="1"\; label="Q"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">Q</figure-callout>}}_1+{{\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="H2009100386557E00011.png"\; state="\{\{state\}\}">L</figure-callout>}}_2}^2{\cos }^2{Q}_2-2{\mathrm{<figure-callout\; id="1"\; label="L"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_1\&CenterDot;{\mathrm{<figure-callout\; id="1"\; label="cos\; Q"\; filenames="H2009100386557E00012.png"\; state="\{\{state\}\}">cos</figure-callout>}Q}_1\&CenterDot;{\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="H2009100386557E00011.png"\; state="\{\{state\}\}">L</figure-callout>}}_2\&CenterDot;{\mathrm{<figure-callout\; id="2"\; label="cos\; Q"\; filenames="H2009100386557E00011.png"\; state="\{\{state\}\}">cos</figure-callout>}Q}_2\&CenterDot;\cos {\mathrm{\&alpha;}}_1}$

$-\sqrt{{{\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_3}^2\&CenterDot;{\mathrm{Cos}}^2{\mathrm{<figure-callout\; id="3"\; label="Q"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">Q</figure-callout>}}_3+{L_4}^2{\mathrm{Cos}}^2{Q}_4-2{\mathrm{<figure-callout\; id="3"\; label="L"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">L</figure-callout>}}_3\&CenterDot;{\mathrm{<figure-callout\; id="3"\; label="Cos\; Q"\; filenames="H2009100386557E00011.png,H2009100386557E00012.png"\; state="\{\{state\}\}">Cos</figure-callout>}Q}_3\&CenterDot;L_4\&CenterDot;{\mathrm{Cos}Q}_4\&CenterDot;\mathrm{Cos}{\mathrm{\&alpha;}}_2}$ (wherein Δ m is two big Car Track gauge deviations of overhead travelling crane, L ₁/ Q ₁, L ₂/ Q ₂, α ₁Being first place goes to the horizontal angle of measuring point 2, L with the oblique distance oblique angle of striding two inboard measuring points of two rails and the letter of instrument mirror from measuring point 1 ₃/ Q ₃, L ₄/ Q ₄, α ₂Be second place with the oblique distance oblique angle of striding two inboard measuring points of two rails and the letter of instrument mirror goes to measuring point 4 from measuring point 3 horizontal angle) algebraic expression come the operation program of design special counter to measure calculating.

Such as: this instrument also can be used for overhead travelling crane with striding all automatic measurement of two big Car Track differences of height and all automatic measurement of same the vertical difference of height of big Car Track.We can be by Δ h=L ₁SinQ ₁-L ₂SinQ ₂(wherein Δ h is that overhead travelling crane is with striding the two rail discrepancy in elevation, L ₁/ Q ₁, L ₂/ Q ₂Be with the oblique distance oblique angle of striding two tread limits, two measuring points) algebraic expression come the operation program of design special counter to measure calculating.

Therefore, switch programming mode as long as increase on demand, this instrument just can become the very wide automatic instrument for quick measuring device of the scope of application.

Claims (2)

1. the multi-functional quick arch measurer of laser longitude and latitude is measured Calculation Method to the bridging crane main beam camber; Wherein said arch measurer is made up of mini-type tubular airborne laser range finder (1), electronic theodolite (2); Mini-type tubular airborne laser range finder (1) be fixed on the shell of lens barrel (3) of electronic theodolite (2) and the socket longitudinal center line (4) of mini-type tubular airborne laser range finder (1) parallel with lens barrel (3) longitudinal center line (5) of transit, the measuring basis face of viameter is set in the rotating shaft center of transit lens barrel; Also be provided with micro calculator (6) on the multi-functional quick arch measurer of said laser longitude and latitude, counter (6) is connected with mini-type tubular airborne laser range finder (1), electronic theodolite (2) respectively through data line, and it is characterized in that: this method may further comprise the steps:

A. arch measurer is placed on the ground location in crane girder the place ahead, and also is transit base leveling, make the measurement surface level the arch measurer base;

B. arch measurer same ground location to bridging crane main beam on three measuring points in two limits one carry out the measurement at oblique distance and pitch angle;

C, utilize above-mentioned oblique distance and pitch angle just can obtain three measuring points to the height of same measurement surface level; Deduct the average height of both sides measuring point then with the height of middle measuring point; Just can draw the sagitta of girder; Horizontal range and the transit lens barrel that utilizes the both sides measuring point again accurately obtains the actual span when surveying arch in the surface level horizontal angle that measuring point goes to the another side measuring point from one side; Utilize sagitta just can obtain desired camber divided by actual span at last, the camber computing formula of being derived is:

$\frac{{2L}_2\&CenterDot;\mathrm{Sin}{Q}_2-L_1\&CenterDot;{\mathrm{SinQ}}_1-L_3\&CenterDot;{\mathrm{SinQ}}_3}{2\sqrt{{L_1}^2\&CenterDot;{\cos }^2{Q}_1+{L_3}^2\&CenterDot;{\cos }^2{Q}_3-2L_1\&CenterDot;\cos Q_1\&CenterDot;L_3\&CenterDot;{\cos Q}_3\&CenterDot;\cos \mathrm{\&alpha;}}}$

Wherein, L ₁, Q ₁, L ₂, Q ₂, L ₃, Q ₃Be the oblique distance and the pitch angle of three measuring points; α be the transit lens barrel from one side measuring point to the level angle of another side measuring point.

2. measurement Calculation Method according to claim 1; It is characterized in that; This method is further comprising the steps of: with the camber computing formula of being derived serves as according to the calculation procedure of writing counter; After counter receives the measurement data of being imported, calculate desired camber automatically.

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