CN113958135A - Rapid high-precision alignment device and alignment method for multi-section H-shaped steel beam - Google Patents
Rapid high-precision alignment device and alignment method for multi-section H-shaped steel beam Download PDFInfo
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- CN113958135A CN113958135A CN202111074180.4A CN202111074180A CN113958135A CN 113958135 A CN113958135 A CN 113958135A CN 202111074180 A CN202111074180 A CN 202111074180A CN 113958135 A CN113958135 A CN 113958135A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
Abstract
The application discloses quick high accuracy alignment device of multistage H shaped steel roof beam and alignment method belongs to roof beam and hangs quick installation technical field, can solve the limited and problem that wastes time and energy of alignment accuracy when current multistage H shaped steel roof beam assembles. The alignment device comprises a height measuring mechanism, a micro-leveling mechanism and a connecting mechanism; the height measuring mechanism is used for respectively measuring the heights of at least three measuring points on the upper surfaces of the lower flanges of two adjacent sections of H-shaped steel beams with the same specification; the lower surface of the lower flange of the H-shaped steel beam is placed at the top end of a micro leveling mechanism, so that the height of the H-shaped steel beam can be adjusted by the micro leveling mechanism; the connecting mechanism is arranged at the butt joint seam of the two adjacent sections of H-shaped steel beams and used for fixing the two adjacent sections of H-shaped steel beams and enabling the side faces of the web plates of the two adjacent sections of H-shaped steel beams on the same side to be on the same plane. This application can guarantee the quick high accuracy alignment of multistage H shaped steel roof beam.
Description
Technical Field
The application relates to the technical field of beam crane quick installation, in particular to a quick high-precision alignment device and method for a multi-section H-shaped steel beam.
Background
The single-beam crane is also called a single-beam bridge crane, and refers to a bridge crane with a main beam on a frame of a cart, which can be used for loading, unloading and transferring goods and is widely applied to workshops, warehouses, material yards and the like in the industries of mechanical manufacturing workshops, metallurgical workshops, petroleum, petrifaction, ports, railways, civil aviation, power stations, papermaking, building materials, electronics and the like. The single-beam lifting appliance has the advantages of compact size, low building clearance height, light dead weight, small wheel pressure and the like.
The single-beam crane comprises a steel beam, a hand pulling trolley, a chain block and the like. The roller groups on the two sides of the hand buggy are respectively positioned on the upper surfaces of the two sides of the lower flange of the steel beam, and the roller groups can run on the rail surface by taking the upper surfaces of the two sides of the lower flange as the rail surface. The upper end of the chain block is hung at the lower end of the hand trolley, and the lower end of the chain block is used for hanging articles. Compared with the I-shaped steel beam, the rail surface of the H-shaped steel beam is a plane, and is easy to align, weld and polish, so the H-shaped steel beam has wide application in single-beam cranes,
many single beam cranes are long and are often segmented into sections of H-section steel beams for ease of handling and transportation. And during installation, the H-shaped steel beams of all the sections are in butt welding. And in order to ensure that the hand buggy can smoothly pass, higher alignment precision is provided when the multiple sections of H-shaped steel beams are assembled. However, in practice, when a plurality of sections of H-shaped steel beams are butt-welded, the alignment accuracy is limited, the alignment itself is time-consuming and labor-consuming, and more time and effort are needed to improve the alignment accuracy.
Disclosure of Invention
The embodiment of the application provides a quick high-precision alignment device and method for a multi-section H-shaped steel beam, and can solve the problems that the alignment precision is limited and time and labor are wasted when the existing multi-section H-shaped steel beam is assembled.
In a first aspect, the embodiment of the invention provides a device for quickly aligning a multi-section H-shaped steel beam with high precision, which comprises a height measuring mechanism, a micro-leveling mechanism and a connecting mechanism; the height measuring mechanism is used for respectively measuring the heights of at least three measuring points on the upper surfaces of the lower flanges of two adjacent sections of H-shaped steel beams with the same specification; the lower surface of the lower flange of the H-shaped steel beam is placed at the top end of one micro-leveling mechanism, so that the micro-leveling mechanism can adjust the height of the H-shaped steel beam; the connecting mechanism is arranged at the butt joint seam of the two adjacent sections of H-shaped steel beams and used for fixing the two adjacent sections of H-shaped steel beams and enabling the side faces of the web plates of the two adjacent sections of H-shaped steel beams on the same side to be on the same plane.
With reference to the first aspect, in one possible implementation manner, the height measuring mechanism includes a total station; the total station can respectively emit measuring laser to each measuring point and obtain the height of the measuring point.
With reference to the first aspect, in one possible implementation manner, the fine leveling mechanism includes at least two fine leveling structures; each fine leveling structure comprises a support frame and at least one leveling bolt; the supporting frame comprises a bottom plate, a vertical plate and a top plate; the bottom plate is used for being supported on a horizontal plane, the lower ends of the vertical plates are connected with the upper surface of the bottom plate, the surfaces of the vertical plates are perpendicular to each other, and the upper ends of the vertical plates are connected with the top plate, and the surfaces of the vertical plates are perpendicular to each other; the front end of at least one leveling bolt penetrates through the top plate from bottom to top and abuts against the lower surface of the lower flange of the H-shaped steel beam.
With reference to the first aspect, in one possible implementation manner, the connecting structure includes two connecting plates and at least one set of fixing components; at the butt joint seam of two adjacent sections of H-shaped steel beams, two connecting plates are respectively attached to two sides of a web plate of the H-shaped steel beam and cover the butt joint seam; and at least one group of fixing assemblies is used for simultaneously fixing two connecting plates and webs of two adjacent sections of H-shaped steel beams.
With reference to the first aspect, in one possible implementation manner, the device for rapidly aligning the multiple H-shaped steel beams with high precision further comprises a sticker; and the measuring points are all pasted with one paster.
With reference to the first aspect, in one possible implementation manner, the sticker is a reflective sticker.
In a second aspect, another embodiment of the present invention provides a method for quickly and highly accurately aligning a plurality of H-shaped steel beams, using the apparatus for quickly and highly accurately aligning a plurality of H-shaped steel beams, including:
respectively measuring the heights of at least three measuring points on the upper surfaces of two adjacent sections of H-shaped steel beams with the same specification which are butted by using a height measuring mechanism;
the height of the H-shaped steel beam is adjusted through a fine adjustment flat mechanism until the heights of at least three measuring points on the adjacent H-shaped steel beams measured by the height measuring mechanism are consistent;
and fixing two adjacent sections of H-shaped steel beams simultaneously through a connecting mechanism, and enabling the side surfaces of the web plates on the same side to be on the same plane.
With reference to the second aspect, in a possible implementation manner, the measuring the heights of at least three measuring points on the upper surfaces of two adjacent butted H-shaped steel beams with the same specification by using a height measuring mechanism specifically includes:
and respectively emitting measuring laser to each measuring point by using a total station and obtaining the height of the measuring point to respectively measure the height of at least three measuring points on the upper surfaces of two adjacent sections of H-shaped steel beams with the same specification in butt joint.
With reference to the second aspect, in a possible implementation manner, the adjusting the height of the H-shaped steel beam by the fine adjustment leveling mechanism until the heights of at least three measurement points on adjacent H-shaped steel beams measured by the height measurement mechanism are consistent specifically includes:
the height of the H-shaped steel beam is adjusted by rotating the leveling bolts of the micro-leveling mechanism until the height of at least three measuring points on the H-shaped steel beam is consistent, wherein the height of the at least three measuring points is measured by the height measuring mechanism.
With reference to the second aspect, in a possible implementation manner, the fixing two adjacent sections of the H-shaped steel beam simultaneously through the connection mechanism and enabling the side surfaces of the same side of the web of the H-shaped steel beam to be on the same plane specifically includes:
at the butt joint seam of two adjacent sections of H-shaped steel beams, two connecting plates of the connecting mechanism are respectively attached to two sides of a web plate of the H-shaped steel beam and cover the butt joint seam;
and at least one group of fixing assemblies of the connecting mechanism simultaneously fixes the two connecting plates and the webs of the two adjacent sections of H-shaped steel beams so that the side surfaces of the webs of the two adjacent sections of H-shaped steel beams on the same side are on the same plane.
One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:
the embodiment of the invention provides a quick high-precision alignment device for a multi-section H-shaped steel beam, which comprises a height measuring mechanism, a micro-leveling mechanism and a connecting mechanism. When the multi-section H-shaped steel beams are aligned in a rapid and high-precision mode, the heights of at least three measuring points on the upper surfaces of two adjacent sections of H-shaped steel beams with the same specification and in butt joint are measured by the height measuring mechanism respectively. Because the lower surface on the bottom flange of H shaped steel roof beam places in the top of a little leveling mechanism, adjust the height of H shaped steel roof beam through finely tuning the leveling mechanism, until the height of the height measuring mechanism measuring on the adjacent H shaped steel roof beam of at least three measuring point is unanimous to can guarantee that the upper surface on the bottom flange of adjacent H shaped steel roof beam is in the coplanar. The connecting mechanism is arranged at the butt joint seam of the two adjacent sections of H-shaped steel beams, and the two adjacent sections of H-shaped steel beams are fixed through the connecting mechanism and the side faces of the web plates on the same side are on the same plane. Meanwhile, as the butted H-shaped steel beams are in the same specification, when the upper surfaces of the lower flanges of the two adjacent sections of H-shaped steel beams are on the same plane and the side surfaces of the lower flanges are on the same side of the web plate, the side surfaces of the lower flanges are also aligned, so that the multi-section H-shaped steel beams can be ensured to be aligned quickly and accurately, the single-beam crane can be installed quickly and accurately, and the hand-pulling trolley installed on the single-beam crane formed by assembling the multi-section H-shaped steel beams can pass smoothly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a first schematic structural view of a device for rapidly aligning H-shaped steel beams in high precision according to an embodiment of the present disclosure;
fig. 2 is a second schematic structural view of the device for rapidly aligning multiple H-shaped steel beams with high precision according to the embodiment of the present application;
fig. 3 is a schematic structural diagram of a third apparatus for fast and highly-precise alignment of multiple H-shaped steel beams according to an embodiment of the present disclosure;
fig. 4 is a fourth schematic structural view of the device for rapidly aligning multiple H-shaped steel beams with high precision according to the embodiment of the present application;
FIG. 5 is a view taken along line A-A of FIG. 4;
FIG. 6 is a schematic structural diagram of a connection mechanism provided in an embodiment of the present application;
fig. 7 is a flowchart of a method for aligning multiple H-shaped steel beams in a rapid and high-precision manner according to an embodiment of the present disclosure.
Icon: 1-a height measuring mechanism; 11-a total station; 12-measuring the laser; 2-micro leveling mechanism; 21-fine leveling structure; 211-a support frame; 2111-base plate; 2112-vertical plate; 2113-head plate; 212-leveling bolt; 3-a connection mechanism; 31-a connecting plate; 32-a stationary component; 321-fixing bolts; 322-a fixing nut; 4-H-shaped steel beams; 41-lower flange; 42-a web; 43-a fixed through hole; 5-paster.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
Referring to fig. 1 to 5, an embodiment of the invention provides a device for fast and highly-precise alignment of multiple sections of H-shaped steel beams, which includes a height measuring mechanism 1, a fine-tuning leveling mechanism 2 and a connecting mechanism 3.
The height measuring mechanism 1 is used for respectively measuring the heights of at least three measuring points on the upper surfaces of the lower flanges 41 of two adjacent sections of H-shaped steel beams 4 with the same specification in a butt joint mode. In practice, any two points define a straight line, and the at least three measuring points may be three, four, five, etc. measuring points. For example, if there are at least three measuring points, the three measuring points are preferably distributed on the upper surfaces of the lower flanges 41 on both sides of the web 42 of the H-shaped steel beam 4, and any two points are selected to be connected to obtain three straight lines; if there are at least four measuring points, it is preferable to set two measuring points on the upper surfaces of the lower flanges 41 on both sides of the web 42 of the H-section steel beam 4, and six straight lines can be obtained by connecting any two points.
The lower surface of the lower flange 41 of the H-section steel beam 4 is placed on top of a micro leveling mechanism 2 so that the micro leveling mechanism 2 can adjust the height of the H-section steel beam 4. According to the principle of superposition of two planes, if at least two straight lines in the same plane are consistent with at least two straight lines on the other plane in height, the two planes are the same plane. That is, the height of the H-shaped steel beam 4 is adjusted by the micro-leveling mechanism 2, so that the heights of at least three measuring points on the upper surfaces of the lower flanges 41 of two adjacent sections of H-shaped steel beams 4 with the same specification are the same, that is, at least two straight lines are selected on the upper surfaces of the lower flanges 41 of the H-shaped steel beams 4, two measuring points are determined on each straight line, the heights of at least six measuring points on the adjacent H-shaped steel beams 4 are adjusted to be the same, that is, the heights of at least two straight lines on the upper surfaces of the lower flanges 41 of the adjacent H-shaped steel beams 4 are ensured to be the same, that is, the upper surfaces of the lower flanges 41 of the adjacent H-shaped steel beams 4 are ensured to be on the same plane.
Fig. 1 and 2 show a schematic structural diagram that each section of H-shaped steel beam 4 has four measuring points, the H-shaped steel beam 4 is a standard steel beam, the upper surfaces of the lower flanges 41 on both sides of the web 42 are generally on the same plane, and meanwhile, for the convenience of detection, the confusion during measurement is avoided, four measuring points are provided, and two measuring points are respectively provided on the upper surfaces of the lower flanges 41 on both sides of the web 42, and the two measuring points are respectively located at the positions with the same distance from the end surface of the upper surfaces at both ends of the lower flanges 41. Of course, six measurement points may be set, and three detection points are respectively set on the upper surfaces of the lower flanges 41 on the two sides of the web 42, at this time, not only the upper surfaces of the lower flanges 41 of the two adjacent sections of H-shaped steel beams 4 may be controlled to be on the same plane more accurately, but also the upper surfaces of the lower flanges 41 on the two sides of the web 42 of the same section of H-shaped steel beam 4 may be retested to be on the same plane, thereby verifying whether the H-shaped steel beam 4 meets the standard, and reducing the error when the two adjacent sections of H-shaped steel beams 4 are butted.
As shown in fig. 3 to 5, the connecting mechanism 3 is disposed at the butt joint seam of two adjacent H-shaped steel beams 4, and is used for fixing the two adjacent H-shaped steel beams 4 and enabling the side surfaces of the same side of the web 42 to be on the same plane. In practice, when the height of the H-shaped steel beam 4 is adjusted by the fine leveling structure 21 until the height measuring mechanism 1 respectively measures the heights of at least three measuring points on the upper surfaces of the lower flanges 41 of two adjacent H-shaped steel beams 4 of the same specification, the upper surfaces of the lower flanges 41 of the two adjacent H-shaped steel beams 4 are ensured to be in the same plane, namely the XOY plane shown in fig. 2 and 3. However, the side surfaces of the same side of the web 42 of the two adjacent H-shaped steel beams 4 may form a certain included angle, and at this time, the hand buggy cannot smoothly pass through the butt joint seam of the two butted H-shaped steel beams 4, because the H-shaped steel beams 4 are standard parts after the upper surfaces of the lower flanges 41 of the two H-shaped steel beams 4 are on the same plane, the web 42 of the H-shaped steel beams 4 are consistent in thickness, and the connecting mechanism 3 can fix the adjacent H-shaped steel beams 4 and make the side surfaces of the same side of the web 42 be on the same plane, i.e., the XOZ plane shown in fig. 2 and 3, so that the hand buggy can smoothly pass through the butt joint seam of the two adjacent H-shaped steel beams 4. When the connecting mechanism 3 is set, the butt joint seam which is not covered by the connecting mechanism 3 is welded, then the connecting mechanism 3 is taken down, and the butt joint seam which is covered by the connecting mechanism 3 is welded. Of course, if the length of the plane where the connecting mechanism 3 extends out of the web 42 along the Y-axis direction is small enough not to block the passage of the hand buggy, the connecting mechanism 3 may not be detached.
In addition, because the H-shaped steel beams 4 butted by the method are all in the same specification, when the upper surfaces of the lower flanges 41 of two adjacent sections of H-shaped steel beams 4 are in the same plane and the side surfaces on the same side of the web 42 are in the same plane, the side surfaces of the lower flanges 41 are also aligned.
When this application embodiment aligns multistage H shaped steel roof beam 4, can be as shown in fig. 1 ~ 5, align two sections H shaped steel roof beams 4 earlier, add one section H shaped steel roof beam 4 on the right side again, align H shaped steel roof beam 4 on middle and right side afterwards, analogize with this. Since the lower surface of the lower flange 41 of the H-section steel beam 4 is placed on top of one micro leveling mechanism 2, meanwhile, when the butt joint seam of two adjacent sections of H-shaped steel beams 4 is welded, the connecting mechanism 3 is generally disassembled, and the two-section alignment mode is adopted, the micro leveling mechanism 2 under the left H-beam 4 can be taken out, the micro leveling mechanism 2 is placed under the right H-beam 4, the connecting mechanism 3 is used for fixing the middle H-beam 4 and the right H-beam 4, thereby greatly saving the number of the used fine-tuning flat mechanisms 2 and the connecting mechanisms 3, saving the cost of butt welding of the single-beam crane, of course, all the H-shaped steel beams 4 required for installing the single-beam crane can be arranged well, the micro-leveling mechanism 2 is arranged below the lower flange 41 of each section of the H-shaped steel beam 4, and then the H-shaped steel beams 4 are aligned one by one.
The embodiment of the invention provides a device for quickly aligning a multi-section H-shaped steel beam with high precision, which comprises a height measuring mechanism 1, a fine-tuning flat mechanism 2 and a connecting mechanism 3. When the multi-section H-shaped steel beam 4 is aligned fast and accurately in practice, the height measuring mechanism 1 is used for respectively measuring the heights of at least three measuring points on the upper surfaces of two adjacent sections of H-shaped steel beams 4 with the same specification which are butted. Because the lower surface of the lower flange 41 of the H-shaped steel beam 4 is placed at the top end of one micro-leveling mechanism 2, the height of the H-shaped steel beam 4 is adjusted through the micro-leveling mechanism 2 until the heights of at least three measuring points on the adjacent H-shaped steel beams 4 measured by the height measuring mechanism 1 are consistent, and therefore the upper surfaces of the lower flanges 41 of the adjacent H-shaped steel beams 4 can be ensured to be on the same plane. The connecting mechanism 3 is arranged at the butt joint seam of the two adjacent sections of H-shaped steel beams 4, and the two adjacent sections of H-shaped steel beams 4 are fixed through the connecting mechanism 3, so that the side surfaces of the same side of the web plates 42 are on the same plane. Meanwhile, as the butted H-shaped steel beams 4 are in the same specification, when the upper surfaces of the lower flanges 41 of two adjacent sections of H-shaped steel beams 4 are on the same plane and the side surfaces of the same sides of the webs 42 are on the same plane, the side surfaces of the lower flanges 41 are also aligned, so that the multi-section H-shaped steel beams 4 can be ensured to be aligned quickly and accurately, the single-beam crane can be installed quickly and accurately, and the hand-pulling trolley installed on the single-beam crane formed by assembling the multi-section H-shaped steel beams 4 can pass smoothly.
As shown in fig. 1 and 2, the height measuring mechanism 1 comprises a total station 11. The total station 11 is capable of emitting a measuring laser 12 to each measuring point and obtaining the height of the measuring point. Specifically, the total station 11 sequentially emits the measurement laser 12 to each measurement point, sequentially obtains the angle and the distance of each measurement point according to the measurement laser 12, calculates the obtained angle and distance to obtain the height of the measurement point, and the surveying staff directly reads the measurement height through the total station 11. The total station 11 is provided with a data processing system, and can rapidly and accurately process the spatial data, so that the total station 11 can enable a measurer to rapidly and accurately acquire the height of a measuring point. Meanwhile, the total station 11 is small in size, light in weight, flexible and convenient, is less limited by terrain, is not easily influenced by external factors (as long as a tripod is stably tied, the total station 11 cannot be deviated generally), and can work normally even under complex natural conditions as long as the total station 11 is reasonably protected. In addition, all calculations are automatically completed by the total station 11, so that the paying-off measurement process is not influenced by individual subjectivity of measurement personnel, the measurement error and the calculation error are reduced, and the measurement efficiency is improved. Of course, the height measuring structure may also include an electronic theodolite and an electromagnetic wave distance meter, the angle of the measuring point is measured by the electronic theodolite, the distance of the measuring point is measured by the electromagnetic wave distance meter, and finally the height of the measuring point can also be obtained by calculation by the measuring staff.
Referring to fig. 1 to 4, the micro leveling mechanism 2 includes at least two micro leveling structures 21. In order to reduce the cost of the butt welding of the single beam crane and make the leveling effect of the H-shaped steel beam 4 better and the supported force more uniform, two fine-tuning flat structures 21 are generally arranged, and as shown in fig. 1 to 4, the two fine-tuning flat structures 21 are respectively arranged at two ends of the lower part of the lower flange 41 of the H-shaped steel beam 4. Of course, the number of the fine leveling mechanisms 2 may be three, four, etc., and the fine leveling mechanisms may be arranged below the lower flange 41 of the H-beam at equal intervals.
Each fine leveling structure 21 includes a support bracket 211 and at least one leveling bolt 212. As shown in fig. 4, the support bracket 211 includes a bottom plate 2111, a vertical plate 2112, and a top plate 2113. The bottom plate 2111 is adapted to be supported on a horizontal surface, the lower ends of the risers 2112 are connected to the upper surface of the bottom plate 2111 and the surfaces thereof are perpendicular to each other, and the upper ends of the risers 2112 are connected to the top plate 2113 and the surfaces thereof are perpendicular to each other. The front end of at least one leveling bolt 212 penetrates through the top plate 2113 from bottom to top and abuts against the lower surface of the lower flange 41 of the H-shaped steel beam 4.
The number of the leveling bolts 212 may be one, two, or three, and as shown in the figure, two leveling bolts 212 are schematically illustrated, and the leveling bolts 212 are disposed on both sides of the top plate 2113 of the support bracket 211 along the Y-axis direction. When there is one leveling bolt 212, the leveling bolt 212 is disposed in the middle of the top plate 2113 of the support bracket 211. When there are three leveling bolts 212, the three leveling bolts 212 are disposed on the top plate 2113 of the support bracket 211 at equal intervals in the Y-axis direction. In contrast, two leveling bolts 212 are arranged on two sides of the top plate 2113 of the supporting frame 211, so that the height of each measuring point can be adjusted more flexibly and conveniently, and the cost is saved. Of course, a top plate 2113 of the general support bracket 211 is provided with a threaded through hole, and the threaded through hole is matched with the leveling bolt 212 for use, so that the height adjustment of the leveling bolt 212 is more convenient and faster.
Generally, the bottom plate 2111, the vertical plate 2112 and the top plate 2113 are integrally formed, as shown in fig. 4, in the support provided by the embodiment of the application, the lower end of the vertical plate 2112 is connected with the middle of the upper surface of the bottom plate 2111, so that the pressure borne by the bottom plate 2111 is more uniform, and the support frame 211 is supported more stably. And the middle part of the supporting frame 211 can form a notch, when two fine-tuning flat structures 21 are arranged below each section of H-shaped steel beam 4, the notches are opposite, so that the fine-tuning flat structures 2 are more stable, and the supporting force provided for the H-shaped steel beam 4 is more stable. Of course, the supporting frame 211 may also be a channel steel or an i-shaped steel.
The fine adjustment flat structure 21 that this application embodiment provided, its simple structure, leveling is effectual, and the leveling is fast, and low cost can the outrigger to H shaped steel roof beam 4 when leveling simultaneously. During specific operation, the at least two fine-adjustment flat structures 21 are placed on the horizontal plane, then the H-shaped steel beam 4 is placed on the upper end faces of the leveling bolts 212 of the at least two fine-adjustment flat structures 21, and when the height measuring mechanism 1 measures that the heights of a plurality of measuring points are not consistent, the heights of the plurality of measuring points can be adjusted to be the same by rotating one or a plurality of bolts.
Of course, finely tune flat-bed machine and construct 2 and can also include the backup pad, swash plate and extending structure, the lower surface of backup pad is used for placing in the horizontal plane, the one end of swash plate is articulated with the one end of backup pad, extending structure's stiff end is fixed in the upper surface of the other end of backup pad, extending structure is connected with the lower surface of the other end of swash plate, extending structure sets up the space that the upper surface of backup pad and the lower surface of swash plate formed promptly, H shaped steel roof beam 4 is placed on the upper surface of swash plate, through adjusting extending structure's flexible volume, can adjust the height of the measuring point of the upper surface of H shaped steel roof beam 4 bottom flange 41.
As shown in fig. 5 and 6, the connecting structure includes two connecting plates 31 and at least one set of fixing members 32. At the butt joint seam of two adjacent sections of H-shaped steel beams 4, two connecting plates 31 are respectively attached to two sides of a web plate 42 of the H-shaped steel beam 4 and cover the butt joint seam. At least one set of fixing assemblies 32 is used for fixing two connecting plates 31 and the web 42 of two adjacent H-shaped steel beams 4 at the same time. The connection structure that this application embodiment provided, simple structure, when at least a set of fixed subassembly 32 is fixed two connecting plates 31 and two adjacent sections H shaped steel roof beam 4's web 42 simultaneously, the web 42 of connecting plate 31 for butt joint seam department both sides closes to the coplanar with flattening power, forces the web 42 with two adjacent sections H shaped steel roof beam 4, and it is fast, the effect is showing to flatten.
Wherein, the fixing assemblies 32 can be one group, two groups, three groups, etc., fig. 6 shows a schematic structural diagram that the fixing assemblies 32 are two groups, and the two groups of fixing assemblies 32 are respectively located at the upper part and the lower part of the connecting plate 31, so that the fixing force provided by the fixing assemblies 32 is more balanced. With continued reference to fig. 6, the fixing assembly 32 includes two sets of fixing members respectively disposed on the webs 42 of the H-shaped steel beams 4 adjacent to each other on both sides of the butt joint seam. Further, the fixing member includes a fixing bolt 321 and a fixing nut 322, as shown in fig. 1, fixing through holes 43 are provided at two sides of a web 42 of the H-shaped steel beam 4, through holes are also provided at corresponding positions on the connecting plates 31, and the front end of the fixing bolt 321 passes through the through hole of one connecting plate 31, then passes through the corresponding fixing through hole 43 on the web 42, and then passes through the corresponding through hole on the other connecting plate 31, and then is sleeved with the fixing nut 322. The two connecting plates 31 clamped at two sides of the web 42 are screwed up through the fixing bolts 321 and the fixing nuts 322, the screwing force is strong, the screwing effect is good, the distance between the two connecting plates 31 is reduced, and the screwing force is applied to the web 42 of two adjacent sections of steel beams through the connecting plates 31, so that the two webs 42 are forced to be aligned and the state fixation is realized. Wherein, the connecting plate 31 is generally a steel plate, so that the strength of the connecting plate 31 can be improved, the flattening effect of the connecting plate on the adjacent H-shaped steel beam 4 is better, and the cost is low.
Of course, the connecting mechanism 3 may also be a clip, and the two webs 42 at the butt joint of the adjacent H-shaped steel beams 4 are clamped by the clamping part of the clip.
As shown in fig. 5, the multi-segment H-shaped steel beam fast high-precision aligning apparatus further includes a sticker 5. A paster 5 is pasted at the measuring point. In practical application, in order to monitor the accuracy of measurement, a measurer can remotely observe the measurement condition of a measurement point, and particularly when the height measuring mechanism 1 is a total station 11, the measurer can monitor the measurement condition of the incident measurement laser 12 on the total station 11, and at the moment, the sticker 5 is attached to the measurement point, so that the measurer can monitor the measurement point conveniently. At the same time, the position of the measuring point can also be specified.
Wherein, sticker 5 is reflection of light sticker 5, can let the measurement personnel monitor the measuring point more easily.
Another embodiment of the present invention provides a method for aligning a plurality of H-shaped steel beams with high accuracy, which uses the apparatus for aligning a plurality of H-shaped steel beams with high accuracy, as shown in fig. 7, and includes the steps of:
s701: and respectively measuring the heights of at least three measuring points on the upper surfaces of two adjacent sections of H-shaped steel beams 4 with the same specification which are butted by using a height measuring mechanism 1.
Specifically, the total station 11 is used for emitting the measuring laser 12 to each measuring point and obtaining the height of the measuring point to measure the height of at least three measuring points on the upper surfaces of two adjacent sections of H-shaped steel beams 4 with the same specification in a butt joint mode.
S702: the height of the H-shaped steel beam 4 is adjusted through the micro-leveling mechanism 2 until the heights of at least three measuring points on the adjacent H-shaped steel beam 4 measured by the height measuring mechanism 1 are consistent.
Specifically, the height of the H-shaped steel beam 4 is adjusted by rotating the leveling bolts 212 of the micro-leveling mechanism 2 until the heights of at least three measuring points on the adjacent H-shaped steel beams 4 measured by the height measuring mechanism 1 are consistent.
Illustratively, when each section of H-shaped steel beam 4 has four measuring points and the measuring points are provided with stickers 5, the total station 11 detects the heights of four stickers 5 arranged on the upper surface of the upper flange of the H-shaped steel beam 4, and when the fine leveling mechanism 2 includes two fine leveling structures 21 and the two fine leveling structures 21 include two leveling bolts 212, the supporting heights of the four leveling bolts 212 are adjusted, so that the heights of the measuring points of the two sections of H-shaped steel beams 4 are consistent.
S703: two adjacent sections of H-shaped steel beams 4 are simultaneously fixed through the connecting mechanism 3, and the side surfaces of the same side of the web plates 42 are on the same plane.
Specifically, at the butt joint seam of two adjacent sections of H-shaped steel beams 4, the two connecting plates 31 of the connecting mechanism 3 are respectively attached to two sides of the web 42 of the H-shaped steel beam 4 and cover the butt joint seam.
At least one group of fixing assemblies 32 of the connecting mechanism 3 simultaneously fix the two connecting plates 31 and the webs 42 of the two adjacent sections of H-shaped steel beams 4 so that the side surfaces of the same side of the webs 42 of the two adjacent sections of H-shaped steel beams 4 are on the same plane.
After the upper surfaces of the lower flanges 41 of the two sections of H-shaped steel beams 4 are aligned, the connecting mechanism 3 can force the side surfaces of the web plates 42 at the same side of the waist portions of the two adjacent sections of H-shaped steel beams 4 to be aligned accurately and realize state fixation, so as to facilitate subsequent welding and butt joint operations.
By adopting the method for quickly and accurately aligning the multiple H-shaped steel beams, the multiple H-shaped steel beams 4 can be quickly and accurately aligned, the single-beam crane can be quickly and accurately installed, and the hand-pulling trolley installed on the single-beam crane formed by assembling the multiple H-shaped steel beams 4 can smoothly pass through.
The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure.
Claims (10)
1. A quick high-precision alignment device for multi-section H-shaped steel beams is characterized by comprising a height measuring mechanism, a micro-leveling mechanism and a connecting mechanism;
the height measuring mechanism is used for respectively measuring the heights of at least three measuring points on the upper surfaces of the lower flanges of two adjacent sections of H-shaped steel beams with the same specification;
the lower surface of the lower flange of the H-shaped steel beam is placed at the top end of one micro-leveling mechanism, so that the micro-leveling mechanism can adjust the height of the H-shaped steel beam;
the connecting mechanism is arranged at the butt joint seam of the two adjacent sections of the H-shaped steel beams and used for fixing the two adjacent sections of the H-shaped steel beams and enabling the side faces of the webs of the two adjacent sections of the H-shaped steel beams on the same side to be on the same plane.
2. The device for fast and highly accurately aligning multi-section H-shaped steel beams according to claim 1, wherein the height measuring mechanism comprises a total station;
the total station can respectively emit measuring laser to each measuring point and obtain the height of the measuring point.
3. The device for rapidly aligning multi-section H-shaped steel beams with high precision according to claim 1, wherein the micro-leveling mechanism comprises at least two micro-leveling structures;
each fine leveling structure comprises a support frame and at least one leveling bolt;
the supporting frame comprises a bottom plate, a vertical plate and a top plate; the bottom plate is used for being supported on a horizontal plane, the lower ends of the vertical plates are connected with the upper surface of the bottom plate, the surfaces of the vertical plates are perpendicular to each other, and the upper ends of the vertical plates are connected with the top plate, and the surfaces of the vertical plates are perpendicular to each other;
the front end of at least one leveling bolt penetrates through the top plate from bottom to top and abuts against the lower surface of the lower flange of the H-shaped steel beam.
4. The device for rapidly aligning the multi-section H-shaped steel beam with high precision as claimed in claim 1, wherein the connecting structure comprises two connecting plates and at least one set of fixing components;
at the butt joint seam of two adjacent sections of H-shaped steel beams, two connecting plates are respectively attached to two sides of a web plate of the H-shaped steel beam and cover the butt joint seam;
and at least one group of fixing assemblies is used for simultaneously fixing two connecting plates and webs of two adjacent sections of H-shaped steel beams.
5. The device for rapidly aligning the multi-section H-shaped steel beam with high precision according to any one of claims 1 to 4, further comprising a sticker;
and the measuring points are all pasted with one paster.
6. The device for rapidly aligning H-shaped steel beams with high precision as claimed in claim 5, wherein the sticker is a reflective sticker.
7. A method for quickly aligning a multi-section H-shaped steel beam with high precision, which is characterized in that the device for quickly aligning the multi-section H-shaped steel beam with high precision as claimed in any one of claims 1 to 6 is used, and comprises the following steps:
respectively measuring the heights of at least three measuring points on the upper surfaces of two adjacent sections of H-shaped steel beams with the same specification which are butted by using a height measuring mechanism;
the height of the H-shaped steel beam is adjusted through a fine adjustment flat mechanism until the heights of at least three measuring points on the adjacent H-shaped steel beams measured by the height measuring mechanism are consistent;
and fixing two adjacent sections of H-shaped steel beams simultaneously through a connecting mechanism, and enabling the side surfaces of the web plates on the same side to be on the same plane.
8. The method for rapidly aligning H-shaped steel beams in high precision according to claim 7, wherein the height measuring mechanism is used for respectively measuring the heights of at least three measuring points on the upper surfaces of two adjacent H-shaped steel beams in the same specification, and the method specifically comprises the following steps:
and respectively emitting measuring laser to each measuring point by using a total station and obtaining the height of the measuring point to respectively measure the height of at least three measuring points on the upper surfaces of two adjacent sections of H-shaped steel beams with the same specification in butt joint.
9. The method for rapidly aligning a plurality of sections of H-shaped steel beams according to claim 7, wherein the height of the H-shaped steel beams is adjusted by a fine adjustment flat mechanism until the heights of at least three measuring points on the adjacent H-shaped steel beams measured by the height measuring mechanism are consistent, and the method specifically comprises the following steps:
the height of the H-shaped steel beam is adjusted by rotating the leveling bolts of the micro-leveling mechanism until the height of at least three measuring points on the H-shaped steel beam is consistent, wherein the height of the at least three measuring points is measured by the height measuring mechanism.
10. The method for rapidly aligning multi-section H-shaped steel beams according to claim 7, wherein the two adjacent sections of H-shaped steel beams are simultaneously fixed through the connecting mechanism, and the side surfaces of the same side of the web plates of the two adjacent sections of H-shaped steel beams are on the same plane, and the method specifically comprises the following steps:
at the butt joint seam of two adjacent sections of H-shaped steel beams, two connecting plates of the connecting mechanism are respectively attached to two sides of a web plate of the H-shaped steel beam and cover the butt joint seam;
and at least one group of fixing assemblies of the connecting mechanism simultaneously fixes the two connecting plates and the webs of the two adjacent sections of H-shaped steel beams so that the side surfaces of the webs of the two adjacent sections of H-shaped steel beams on the same side are on the same plane.
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