CN215173305U - Adjustable supporting frame for foundation bolts of boiler - Google Patents
Adjustable supporting frame for foundation bolts of boiler Download PDFInfo
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- CN215173305U CN215173305U CN202120631630.4U CN202120631630U CN215173305U CN 215173305 U CN215173305 U CN 215173305U CN 202120631630 U CN202120631630 U CN 202120631630U CN 215173305 U CN215173305 U CN 215173305U
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Abstract
The utility model relates to an adjustable braced frame of boiler rag bolt, a be used for fixing a position rag bolt, braced frame includes outer frame and internal frame, outer frame includes last supporting beam and the under bracing crossbeam between stand and a plurality of stands, the internal frame includes setting element and lower setting element, all be equipped with the location round hole on going up the corresponding position of setting element and lower setting element, the diameter of location round hole is greater than rag bolt's diameter, rag bolt's lower tip passes the location round hole on setting element and the lower setting element from top to bottom in proper order, rag bolt goes up the cover has first nut, second nut and anchor plate, the second nut, it welds in proper order from top to bottom to go up setting element and last supporting beam, the under bracing crossbeam, the lower setting element, anchor plate and first nut weld in proper order from top to bottom. Compared with the prior art, the utility model has the advantages of adjust the degree of difficulty low, labour saving and time saving, work efficiency height and precision height.
Description
Technical Field
The utility model relates to a steelframe boiler technique especially relates to an adjustable braced frame of boiler rag bolt.
Background
Domestic thermal power plant boiler equipment generally adopts the steel construction as the mount, like figure 9, the steel stand 16 of mount sets up on column bottom plate 1, and conventional use rag bolt 2 is fixed column bottom plate 1. The size of the column bottom plate 1 is matched with the size of the steel column, and 4, 6 or 8 foundation bolts 2 are generally adopted. The relative position requirement of rag bolt 2 is comparatively strict, for the main control node of civil engineering installation, generally requires as follows: the center distance between every two groups of foundation bolts 2 in any direction is not more than +/-3 mm, the distance between every two adjacent groups of center lines is 1mm per meter, but the maximum distance is not more than +/-5 mm. For controlling the relative position between the foundation bolts 2, as shown in fig. 1, fig. 2, fig. 3 and fig. 5, the foundation bolts 2 are generally fixed by a support frame, the support frame is a cuboid frame formed by welding a plurality of columns 5, lower supporting beams 6 and upper supporting beams 11, inclined supports 4 are arranged around the cuboid frame, two second lower positioning beams 14 are welded between two parallel lower supporting beams 6, two first lower positioning beams 13 are welded between two second lower positioning beams 14, two second upper positioning beams 9 are welded between two parallel upper supporting beams 11, two first upper positioning beams 8 are vertically welded between two second upper positioning beams 9, positioning round holes 15 are formed in both the second upper positioning beams 9 and the second lower positioning beams 14, the diameter of each positioning round hole 15 is larger than the diameter of the cross section of the foundation bolt 2, and the lower end of the foundation bolt 2 sequentially penetrates through the second upper positioning beams 9 and the positioning beams 14 Round hole 15 to fix on second lower positioning beam 14 through first nut 7 and anchor slab 12, the welding has locating piece 3 on the second upper positioning beam 9, locating piece 3 blocks 2 upper ends of rag bolt, guarantee that rag bolt 2 does not fall, rag bolt 2 is fixed on braced frame this moment, transport braced frame to the civil engineering scene again, through the position of adjustment first nut 7, anchor slab 12 and braced frame's locating position, carry out the intergroup of rag bolt 2 and the intracoup distance, have reached required precision.
The existing design and installation scheme of the foundation bolt 2 and the supporting frame takes the adjustment requirement of the foundation bolt 2 into consideration, but the adjustability is poor, and the main problems are as follows:
the position adjustment firstly needs to adjust the inter-group spacing of the foundation bolts 2 to be qualified, and once the positioning block 3 is subjected to spot welding, the position of the positioning block is adjusted again and the welding point needs to be knocked off, so that the method is very inconvenient;
after the positioning block 3 is welded, the lower end of the foundation bolt 2 is positioned by screwing the first nut 7, the adjustment is convenient, after the first nut 7 is screwed, the first nut 7 and the anchor plate 12 as well as the anchor plate 12 and the second upper positioning cross beam 9 are respectively fixed by spot welding, but because the foundation bolt 2 is not allowed to be welded, the foundation bolt 2 and the first nut 7 are not fixed by spot welding, the foundation bolt 2 can actually spin, and the elevation of the upper end part of the foundation bolt 2 can be changed, so that the installation precision is influenced;
after the inter-group spacing of the foundation bolts 2 is adjusted, the axis of the supporting frame needs to be adjusted, and the supporting frame needs to be moved integrally, but the supporting frame is heavy, so that the adjustment is difficult and the precision is low;
after the axis of the supporting frame is positioned, if deviation is found, the whole adjustment is difficult, and the first nuts 7 interfere with each other, and after one first nut 7 is positioned and adjusted, other first nuts 7 in the same group may deviate again, which affects the final precision.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adjustable braced frame of boiler rag bolt in order to overcome the defect that above-mentioned prior art exists, the regulation degree of difficulty is low, labour saving and time saving, and work efficiency is high, and the precision is high.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides an adjustable braced frame of boiler rag bolt for fix a position rag bolt, includes outer frame and internal frame, outer frame include stand and a plurality of stands between last supporting beam and the lower supporting beam, the internal frame include setting element and lower setting element, last setting element and corresponding position of lower setting element on all be equipped with the location round hole, the diameter of location round hole be greater than rag bolt's diameter, rag bolt's lower tip pass the location round hole on setting element and the lower setting element in proper order from top to bottom, rag bolt on the cover have first nut, second nut and anchor plate, second nut, last setting element and last supporting beam weld in proper order from top to bottom, lower supporting beam, lower setting element, anchor plate and first nut weld in proper order from top to bottom.
Furthermore, last setting element include a plurality of parallel arrangement's second upper positioning crossbeam, lower setting element include a plurality of parallel arrangement's second lower positioning crossbeam, rag bolt's tip from top to bottom pass second upper positioning crossbeam and second lower positioning crossbeam in proper order.
Furthermore, two adjacent second upper positioning cross beams are connected through the first upper positioning cross beam.
Furthermore, the first upper positioning cross beam and the second upper positioning cross beam are made of channel steel.
Further, two adjacent second lower positioning beams are connected through the first lower positioning beam.
Furthermore, the first lower positioning cross beam and the second lower positioning cross beam are made of channel steel.
Furthermore, the upright posts are made of angle steel.
Furthermore, the upper supporting beam and the lower supporting beam are made of angle steel.
Furthermore, inclined supports are obliquely arranged among the plurality of upright posts.
Furthermore, the diagonal bracing is made of angle steel.
Compared with the prior art, the utility model discloses have with following beneficial effect:
the utility model comprises an outer frame and an inner frame, wherein the outer frame has the largest weight, the positioning of the outer frame is firstly completed, the inner frame with lighter weight is only needed to be adjusted at the installation site, the operation difficulty of the positioning between groups of the foundation bolts is greatly reduced, compared with the adoption of an integral supporting frame, time and labor are saved, the upper ends of the foundation bolts are fixed through the second nuts, the foundation bolts are temporarily fixed through the first nuts and the second nuts in a bolt tightening mode, the foundation bolts can be placed in place by finely adjusting the positions of the foundation bolts through knocking the first nuts and the second nuts, if the installation precision is unqualified, the spot welding between the inner frame and the outer frame is knocked off, the adjustment is carried out again, compared with the scheme of positioning through the positioning block, the positioning difficulty and the workload of a single foundation bolt in the group are greatly reduced, the work efficiency is high, and simultaneously, after the first nuts and the second nuts are tightened, the foundation bolt can not be automatically rotated, the elevation of the foundation bolt is stable and unchanged, the mounting precision and stability are improved, the mutual interference between the foundation bolts is reduced, the integral adjustment difficulty is reduced, time and labor are saved, and the working efficiency is high.
Drawings
FIG. 1 is a side view of a prior art support frame;
FIG. 2 is a front view of a prior art support frame;
FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic structural view of the inner frame;
FIG. 5 is a top view of the second upper positioning beam;
fig. 6 is a side view of the support frame of the present invention;
fig. 7 is a front view of the support frame of the present invention;
FIG. 8 is a schematic cross-sectional view taken along line B-B of FIG. 7;
FIG. 9 is a schematic view of the construction of the column bottom plate;
FIG. 10 is a flow chart of a method of installing a support frame;
the reference numbers in the figures illustrate:
1. the steel column comprises a column bottom plate, 2 anchor bolts, 3 positioning blocks, 4 inclined supports, 5 columns, 6 lower supporting cross beams, 7 first nuts, 8 first upper positioning cross beams, 9 second upper positioning cross beams, 10 second nuts, 11 upper supporting cross beams, 12 anchor plates, 13 first lower positioning cross beams, 14 second lower positioning cross beams, 15 positioning round holes and 16 steel columns.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
An adjustable supporting frame of boiler foundation bolts is used for positioning foundation bolts 2, and comprises an outer frame and an inner frame, wherein the outer frame comprises 4 upright posts 5 arranged at four corners, an upper supporting beam 11 and a lower supporting beam 6 are connected between every two adjacent upright posts 5, the inner frame comprises an upper positioning piece and a lower positioning piece, the upper positioning piece comprises two second upper positioning beams 9 arranged in parallel, the lower positioning piece comprises two second lower positioning beams 14 arranged in parallel, positioning round holes 15 are formed in corresponding positions of the second upper positioning beams 9 and the second lower positioning beams 14, and the end parts of the foundation bolts 2 sequentially penetrate through the positioning round holes 15 in the second upper positioning beams 9 and the second lower positioning beams 14 from top to bottom;
the diameter of location round hole 15 is greater than rag bolt 2's diameter to finely tune rag bolt 2's position, the cover has first nut 7, second nut 10 and anchor slab 12 on rag bolt 2, and second nut 10, last setting element and last supporting beam 11 weld from top to bottom in proper order, and lower supporting beam 6, lower setting element, anchor slab 12 and first nut 7 weld from top to bottom in proper order.
Two parallel first upper positioning beams 8 are arranged between the two second upper positioning beams 9, so that the two second upper positioning beams 9 are fixed in position, and two parallel first lower positioning beams 13 are arranged between the two second lower positioning beams 14, so that the two second lower positioning beams 14 are fixed in position.
The first upper positioning beam 8, the second upper positioning beam 9, the first lower positioning beam 13 and the second lower positioning beam 14 are made of channel steel; the inclined supports 4 are obliquely arranged among the plurality of upright columns 5, the inclined supports 4, the upright columns 5, the upper supporting cross beams 11 and the lower supporting cross beams 6 are made of angle steel, and the outer frame and the inner frame are high in structural rigidity, light in weight and convenient to mount and carry.
The method for installing the supporting frame, as shown in fig. 10, specifically includes:
1) completing the fixation of the outer frame: determining the axis position of the outer frame, and welding the upright post 5, the upper supporting beam 11 and the lower supporting beam 6 to complete the assembly of the outer frame;
2) completing the fixing of the inner frame: the second upper positioning crossbeam 9 is lapped on the upper supporting crossbeam 11, the second lower positioning crossbeam 14 passes through the lower part of the lower supporting crossbeam 6, the lower end parts of the foundation bolts 2 sequentially pass through the positioning round holes 15 on the second upper positioning crossbeam 9 and the second lower positioning crossbeam 14 from top to bottom, after the position adjustment of the second upper positioning crossbeam 9 and the second lower positioning crossbeam 14 is completed, the second upper positioning crossbeam 9 and the upper supporting crossbeam 11 are fixed in a spot welding manner, and the second lower positioning crossbeam 14 and the lower supporting crossbeam 6 are fixed in a spot welding manner;
3) fine adjustment of the position of the anchor bolt 2: pre-tightening the first nut 7 and the second nut 10, determining the positions of the first nut 7 and the second nut 10 through a positioning instrument, and knocking the first nut 7 and the second nut 10 by a hammer to adjust the positions;
4) fixing the position of the anchor bolt 2: after the positions of the first nut 7 and the second nut 10 are determined, the upper positioning piece and the lower positioning piece are firmly welded with the upper supporting beam 11 and the lower supporting beam 6 respectively, and the first nut 7 and the second nut 10 are respectively welded with the lower positioning piece and the upper positioning piece in a multi-point spot welding mode.
5) And (5) performing a concrete pouring process.
The embodiment provides an adjustable braced frame of boiler rag bolt, and braced frame divide into outer frame and internal frame, has optimized the installation procedure, has more conveniently satisfied the on-the-spot multidimension degree of installation and has adjusted the demand, and work efficiency is high, and the operation degree of difficulty is low.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. An adjustable supporting frame of boiler foundation bolts is used for positioning the foundation bolts (2), and is characterized by comprising an outer frame and an inner frame, wherein the outer frame comprises columns (5) and an upper supporting beam (11) and a lower supporting beam (6) between the columns (5), the inner frame comprises an upper positioning piece and a lower positioning piece, positioning round holes (15) are arranged at the corresponding positions of the upper positioning piece and the lower positioning piece, the diameter of each positioning round hole (15) is larger than that of each foundation bolt (2), the lower end part of each foundation bolt (2) sequentially penetrates through the positioning round holes (15) on the upper positioning piece and the lower positioning piece from top to bottom, the foundation bolts (2) are sleeved with first nuts (7), second nuts (10) and anchor plates (12), the second nuts (10), the upper positioning piece and the upper supporting beam (11) are sequentially welded from top to bottom, and the lower supporting beam (6), the lower positioning piece, the anchor plate (12) and the first nut (7) are welded in sequence from top to bottom.
2. The adjustable supporting frame for the foundation bolts of the boiler according to claim 1, wherein the upper positioning member comprises a plurality of second upper positioning beams (9) arranged in parallel, the lower positioning member comprises a plurality of second lower positioning beams (14) arranged in parallel, and the end parts of the foundation bolts (2) sequentially pass through the second upper positioning beams (9) and the second lower positioning beams (14) from top to bottom.
3. An adjustable support frame for boiler anchor bolts according to claim 2, characterized in that two adjacent second upper positioning beams (9) are connected by a first upper positioning beam (8).
4. A boiler anchor bolt adjustable support frame according to claim 3, characterized in that the material of the first upper positioning beam (8) and the second upper positioning beam (9) is channel steel.
5. An adjustable support frame for boiler anchor bolts according to claim 2, characterized in that adjacent two second lower positioning beams (14) are connected by a first lower positioning beam (13).
6. The adjustable supporting frame for the boiler anchor bolts according to claim 5, wherein the first lower positioning beam (13) and the second lower positioning beam (14) are made of channel steel.
7. An adjustable supporting frame for boiler anchor bolts according to claim 1, characterized in that the material of the pillars (5) is angle steel.
8. The adjustable supporting frame for the foundation bolts of the boiler according to claim 1, wherein the upper supporting beam (11) and the lower supporting beam (6) are made of angle steel.
9. An adjustable supporting frame for boiler anchor bolts according to claim 1, characterized in that inclined supports (4) are obliquely arranged among the plurality of pillars (5).
10. An adjustable support frame for boiler anchor bolts according to claim 9, characterized in that the material of the diagonal braces (4) is angle steel.
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CN202120631630.4U CN215173305U (en) | 2021-03-29 | 2021-03-29 | Adjustable supporting frame for foundation bolts of boiler |
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CN202120631630.4U CN215173305U (en) | 2021-03-29 | 2021-03-29 | Adjustable supporting frame for foundation bolts of boiler |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113007495A (en) * | 2021-03-29 | 2021-06-22 | 华能国际电力股份有限公司上海石洞口第一电厂 | Adjustable supporting frame for foundation bolts of boiler and mounting method |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113007495A (en) * | 2021-03-29 | 2021-06-22 | 华能国际电力股份有限公司上海石洞口第一电厂 | Adjustable supporting frame for foundation bolts of boiler and mounting method |
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