High-precision embedding method for power machine sleeve embedded parts

Abstract

The application provides a high-precision embedding method for a power machine sleeve embedded part, comprising the following steps: S01, designing and manufacturing a steel structure support frame and a base; S02, placing the steel structure support frame at the bottom of an anchoring box of a power machine, placing the base at the bottom of the steel structure support frame, positioning, installing, assembling and welding the base, the steel structure support frame and the anchoring box, and performing first precision adjustment; S03, accurately positioning and assembling the sleeve with a positioning plate and performing assembly welding, to form a combined part of the sleeve and the positioning plate; S04, integrally installing and fixing the combined part of the sleeve and the positioning plate on the anchoring box, and reinforcing and supporting around the combined part; S05, adjustably connecting the positioning plate and the fixing point, binding the equipment foundation steel bars, and performing second precision adjustment; S06, supporting a formwork, pouring concrete, and performing real-time monitoring and third precision adjustment in the whole process. The application can effectively solve the problem that the sleeve embedded part is prone to deviation, realize high-precision embedding, and is conducive to cost reduction and efficiency increase.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building engineering construction, in particular to a high-precision embedding method for power machine sleeve embedded parts. BACKGROUND

[0002] Common power machines include rotary machines, reciprocating machines, impact machines, vibration test benches, metal cutting machine tools, etc. The stability of the power machine foundation is the premise to ensure its effective operation. The embedded parts in the foundation are important components for transmitting loads and fixing equipment, which need to be prefabricated in the reinforced concrete foundation according to the design requirements. Foundation embedding is widely used in the field of engineering installation and is an important link in building engineering construction.

[0003] With the large application of various high-precision and large-scale equipment, the equipment foundation is becoming more and more complex, and the embedding precision of the embedded parts is also becoming higher and higher. Some large, complex, high-technology and precise power machines, such as steam turbines, generators, compressors, rolling mills, casting and rolling mills, coiling machines, etc., often use inverted T-shaped anchor bolts, and the anchor bolts are provided with sleeves. After the inverted T-shaped anchor bolt is installed, it is sealed. The sleeve of the inverted T-shaped anchor bolt is long, heavy and complex in structure. Generally, several sleeves are grouped, the number is large, the positioning precision is high, and it needs to be embedded during the construction of the equipment foundation.

[0004] During the installation of large power machines on site, many external factors in the construction process will directly affect the deviation of the embedded parts, which can easily cause the main equipment to be unable to normally connect with the matched equipment after installation, and the geometric size deviation of individual embedded parts can even cause the equipment to be unable to be installed, thereby bringing great difficulty to the on-site installation. Therefore, high-precision embedding plays a decisive role in the installation quality of large power machines. SUMMARY

[0005] The present application aims at the deficiencies of the prior art, and provides a high-precision embedding method for power machine sleeve embedded parts. The present application can control the deviation of the inverted T-shaped anchor bolt sleeve embedded part during construction, realize high-precision embedding, and solve the technical problem that the embedding precision in the prior art cannot meet the design requirements, thereby affecting the installation quality of the power machine.

[0006] The specific technical solutions are as follows:

[0007] A high-precision embedding method for power machine sleeve embedded parts, comprising the following steps:

[0008] S01, design and make a steel structure support frame and a base;

[0009] S02, placing the steel structure support frame at the bottom of the anchoring box of the power machine, placing the base at the bottom of the steel structure support frame, positioning, installing, assembling and welding the base, the steel structure support frame and the anchoring box, and performing the first precision adjustment;

[0010] S03, after accurately positioning the sleeve with the positioning plate, welding the positioning plate and the sleeve together to form the combined part of the sleeve and the positioning plate;

[0011] S04, integrally installing and fixing the combined part of the sleeve and the positioning plate on the anchoring box, and reinforcing and supporting around the combined part;

[0012] S05, adjustably connecting the positioning plate with the fixed points around the equipment foundation, binding the equipment foundation reinforcement, and performing the second precision adjustment;

[0013] S06, setting up the formwork and pouring the concrete, and performing the third precision adjustment in real time during the whole process.

[0014] Optionally, in step S02, the base is positioned and pre-buried during the construction of the cushion or the lower bearing platform of the equipment foundation according to the designed position of the anchoring box, and after the concrete of the cushion or the lower bearing platform is cured to the designed strength, the column of the steel structure support frame is welded and fixed on the base, and the anchoring box is installed and welded on the steel structure support frame, and then the first precision adjustment is performed, and after meeting the requirements, the column footing is poured at the position of the base and the column.

[0015] Optionally, the column footing is poured with concrete of higher strength than the equipment foundation.

[0016] Optionally, in step S03, the positioning plate is first placed upside down on the bracket, and then the upper opening of the sleeve is turned over and the lower opening of the sleeve is turned over, the upper opening of the sleeve passes through the round hole in the positioning plate and extends out of the round hole, and then the positioning plate is welded and fixed with the sleeve by using circumferential fillet weld to form the combined part of the sleeve and the positioning plate.

[0017] Optionally, a plurality of exhaust holes are formed in the positioning plate.

[0018] Optionally, a plurality of U-shaped pull rings are fixedly installed on the positioning plate.

[0019] Optionally, not less than three calibration points are arranged on the top of the positioning plate.

[0020] Optionally, in step S04, after the column foot foundation concrete strength of the steel structure support frame reaches at least 80% of the design strength, the sleeve and the positioning plate assembly are hoisted as a whole to the anchoring box, the verticality of the sleeve and the positioning plate assembly is adjusted, the lower opening of the sleeve is precisely positioned and welded to the top of the anchoring box, and horizontal rods and the inclined rods are supported around the steel structure support frame and the sleeve, and the horizontal rods and the inclined rods are welded to the steel structure support frame and the sleeve.

[0021] Optionally, in step S05, the U-shaped pull ring at the top of the positioning plate is used to pull the fixed point around the equipment foundation by using a basket bolt and a steel wire rope, and the basket bolt is adjusted to achieve adjustable pulling; then the equipment foundation reinforcement is bound, and the second precision adjustment is performed, and the formwork is supported and the equipment foundation concrete is poured after meeting the requirements.

[0022] Optionally, in step S06, the whole process is monitored in real time during pouring of the concrete, the three-dimensional coordinates of the center of the reflective sheet are tracked in real time by using a high-precision digital display total station or a laser tracker, the data changes before and after are observed, recorded and compared, or compared with the three-dimensional coordinate data in the BIM model, and the third precision adjustment is performed in time by using the basket bolt when the top elevation and the axis position of the sleeve embedded part deviate more than the design allowable error.

[0023] Compared with the prior art, the present application has the following advantages:

[0024] (1) The present application uses an independent rigid support frame as a pre-embedded tool to solve the problem of easy deviation of the power machine sleeve pre-embedding, and realizes high-precision pre-embedding. The support frame considers the influence of the sleeve load, connects multiple sleeves into a whole for fixation, and ensures the stiffness and precision of the sleeve. The support frame is welded to the pre-embedded base, independent of the reinforcement binding and formwork support system of the equipment foundation, but forms a stable and reliable whole, reduces the steel vibration conduction during concrete pouring and vibration, and ensures the high-precision pre-embedding of the sleeve.

[0025] (2) The pre-embedded tool such as the support frame is made of common materials on the construction site, and has simple manufacturing process, convenient welding fixation, easy popularization, and is beneficial to cost reduction and efficiency improvement.

[0026] (3) The small concrete foundation is applied to the important parts of the support frame column foot for early reinforcement, and is then wrapped in the equipment foundation, which is convenient for construction, improves the stability and anti-impact and anti-vibration ability of the support frame, and has good construction effect.

[0027] (4) using the phased error control method, encryption measurement retest density, the sleeve embedded precision standards gradually implemented, ultimately achieve the design requirements of high-precision embedded, the process is scientific and perfect, can quickly complete high-precision embedded, small error, high precision, less time, high efficiency;

[0028] (5) with the help of high-precision digital display total station or laser tracker real-time tracking measurement, and the final adjustment positioning, solves the problem of measurement accuracy control, effectively guarantees the high-precision embedded quality of sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 for the specific steps of the embodiment of the application power machine sleeve embedded high-precision embedded method schematic diagram;

[0030] Figure 2 for the steel structure support frame structure of the embodiment of the application power machine sleeve embedded high-precision embedded method schematic diagram;

[0031] Figure 3 for the base structure of the embodiment of the application power machine sleeve embedded high-precision embedded method schematic diagram;

[0032] Figure 4 for the embodiment of the application power machine sleeve embedded high-precision embedded method in the sleeve embedded whole schematic diagram;

[0033] Figure 5 for the embodiment of the application power machine sleeve embedded high-precision embedded method in step S02 after the completion of the structure schematic diagram;

[0034] Figure 6 for the embodiment of the application power machine sleeve embedded high-precision embedded method in the positioning plate structure schematic diagram;

[0035] Figure 7 for the embodiment of the application power machine sleeve embedded high-precision embedded method in step S03 after the completion of the structure schematic diagram;

[0036] Figure 8 for the embodiment of the application power machine sleeve embedded high-precision embedded method in step S04 after the completion of the schematic diagram;

[0037] Figure 9 for the embodiment of the application power machine sleeve embedded high-precision embedded method in step S05 positioning plate and fixed point pull and adjust the schematic diagram.

[0038] In the drawings: 1, steel structure support frame; 11, stand column; 12, crossbeam; 2, base; 21, bottom plate; 22, hooked steel bar; 3, anchoring box; 4, positioning plate; 40, round hole; 41, exhaust hole; 42, U-shaped pull ring; 43, calibration point; 44, bracket; 5, sleeve; 51, inverted T-shaped anchor bolt; 6, combined part; 61, horizontal rod; 62, inclined rod; 7, equipment foundation; 71, cushion or lower bearing platform; 8, column foot foundation; 9, fixed point; 91, steel wire rope; 92, basket bolt; 93, reflector. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0040] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0041] The present application will be further described below with reference to the drawings and specific embodiments, but is not limited by the present application.

[0042] The high-precision embedding method for the sleeve embedded part of the power machine provided by the present application refers to Figure 1 , comprising the following steps:

[0043] S01, designing and manufacturing the steel structure support frame 1 and the base 2;

[0044] S02, placing the steel structure support frame 1 at the bottom of the anchoring box 3 of the power machine, placing the base 2 at the bottom of the steel structure support frame 1, positioning, installing, and group-welding the base 2, the steel structure support frame 1, and the anchoring box 3, and performing the first precision adjustment;

[0045] S03, accurately positioning the sleeve 5 with the positioning plate 4, and then group-welding the positioning plate 4 and the sleeve 5 to form the combined part 6 of the sleeve 5 and the positioning plate 4;

[0046] S04, integrally installing and fixing the combined part 6 of the sleeve 5 and the positioning plate 4 on the anchoring box 3, and reinforcing and supporting around the combined part 6;

[0047] S05, adjustably pulling and connecting the positioning plate 4 and the fixed points 9 around the equipment foundation 7, binding the equipment foundation steel bars, and performing the second precision adjustment;

[0048] S06, setting up the formwork, pouring the concrete, and monitoring in real time and performing the third precision adjustment during the whole process.

[0049] Wherein, referring to Figures 2-4 , the steel structure support frame 1 in step S01 includes a column 11 and a crossbeam 12, which are designed according to the load of the sleeve 5 and the anchoring box 3 of the power machine, and are made of profile steel material and are welded together, and the steel structure support frame 1 is placed at the bottom of the anchoring box 3; the base 2 is made of a bottom plate 21 and bent hook reinforcement 22 and is welded together, and the base 2 is placed at the bottom of the steel structure support frame 1; according to the design arrangement of the anchoring box 3, a single base 2 and a single steel structure support frame 1 of a single anchoring box 3 can be designed and made, or a combined base 2 and a combined steel structure support frame 1 of multiple combined anchoring boxes 3 can be designed and made.

[0050] Referring to Figure 5 , in step S02, according to the design position of the anchoring box 3 of the power machine, the base 2 is positioned and pre-buried when the cushion or the lower bearing platform 71 of the equipment foundation 7 is constructed, after the concrete of the cushion or the lower bearing platform 71 is cured to reach the design strength, the column 11 of the steel structure support frame 1 is welded and fixed on the base 2, and the anchoring box 3 is installed and welded on the steel structure support frame 1, and then the first precision adjustment is performed (the position, elevation, and perpendicularity of the steel structure support frame 1 and the anchoring box 3 are measured by using a level, a theodolite, a total station, a vertical detection ruler, etc., and the adjustment is performed by using a wedge, a jack, etc., so that the position, elevation, and perpendicularity error of the anchoring box 3 meets the design allowable error), and then the column footing 8 is poured at the position of the base 2 and the column 11.

[0051] In addition, the length and width dimensions of the column footing 8 should be greater than those of the base 2, and the column footing 8 is poured with higher strength concrete than the equipment foundation 7, so as to reinforce the connection between the column footing 8 and the base 2 and the equipment foundation 7, and to stably and firmly fix the steel structure support frame 1 on the base 2.

[0052] Referring to Figure 6 and Figure 7 , in step S03, the sleeve 5 is precisely positioned and assembled for welding by using the positioning plate 4, the positioning plate 4 is made of steel plate material and is precisely cut by using a numerical control cutting machine, the temperature is strictly controlled during cutting and assembly welding, and the warping and deformation caused by thermal stress are reduced as much as possible, and the positioning plate 4 is corrected as necessary to meet the requirements, the thickness δ2 of the positioning plate 4 is 1.5-3 times the wall thickness δ1 of the sleeve 5, a circular hole 40 with a diameter D1 that is 1-2 mm larger than the outer diameter D0 of the sleeve 5 is formed in the positioning plate 4 at the position of the sleeve 5, and the sleeve 5 is inverted and assembled for welding by using the inverted method, the positioning plate 4 is placed on the bracket 44 after being turned over, the upper opening of the sleeve 5 is turned over, the upper opening of the sleeve 5 penetrates through the circular hole 40 of the positioning plate 4 and extends out by about 100-150 mm, and then the positioning plate 4 is welded and fixed by using the circumferential fillet weld, so as to form the combined part 6 of the sleeve 5 and the positioning plate 4.

[0053] Referring toFigure 6 A plurality of exhaust holes 41 with a diameter D2≥50mm are formed on the positioning plate 4 to facilitate the vibration of the concrete during pouring and effectively avoid the formation of hollows under the positioning plate 4.

[0054] Referring to Figure 6 A U-shaped pull ring 42 made of round steel is welded to the top of the positioning plate 4, the diameter of the round steel is φ≥the thickness δ2 of the positioning plate 4, and the height of the U-shaped pull ring 42 is about 200-250mm, which is arranged around the positioning plate 4 and can be cut and removed after the completion of the equipment foundation 7 maintenance.

[0055] Referring to Figure 6 The top of the positioning plate 4 is marked with at least three calibration points 43 using cross marks.

[0056] Referring to Figure 8 In step S04, after the concrete strength of the column footing 8 of the steel structure support frame 1 reaches at least 80% of the design strength, the combined assembly 6 of the sleeve 5 and the positioning plate 4 is flipped and assembled, and the verticality of the combined assembly 6 of the sleeve 5 and the positioning plate 4 is adjusted. The lower opening of the sleeve 5 is precisely positioned and welded to the top of the anchor box 3, and horizontal bars 61 and inclined bars 62 are arranged around the steel structure support frame 1 and the combined assembly 6 of the sleeve 5 and the positioning plate 4, which are welded and reinforced to improve the rigidity and stability.

[0057] Referring to Figure 9 In step S05, the U-shaped pull ring 42 at the top of the positioning plate 4 is used to pull the fixed points 9 around the equipment foundation 7 using basket bolts 92 and steel wire ropes 91, and the adjustable pull is achieved by adjusting the basket bolts 92. Then, the steel reinforcement of the equipment foundation 7 is tied (when tying the steel reinforcement of the equipment foundation 7, attention should be paid to avoid the steel structure support frame 1, the column footing 8, the horizontal bars 61, the inclined bars 62, the positioning plate 4 or the sleeve 5, the anchor box 3, etc., and the spacing and position of the steel reinforcement should be adjusted flexibly according to the actual situation to avoid tying or welding the steel reinforcement on the steel structure support frame 1, the horizontal bars 61, the inclined bars 62, the positioning plate 4 or the sleeve 5, the anchor box 3, etc.), and the second precision adjustment is performed (using a level, theodolite, total station, vertical detection ruler, etc. to measure the flatness of the positioning plate 4, the verticality of the sleeve 5 and the anchor box 3 and the positioning plate 4, the axial orientation of the sleeve 5, etc., and adjusting them with wedges, jacks, basket bolts 92, etc. to make the top elevation, verticality and axial position of the sleeve 5 meet the design allowable error), and the formwork is set up and the equipment foundation 7 concrete is poured after meeting the requirements.

[0058] In step S06, the device foundation 7 is integrally poured with concrete, and the pouring should be carried out in layers, and timely vibration is implemented, and the thickness of each layer is 300-500 mm. When the concrete is poured, it should be poured from multiple points and rapidly spread evenly in all directions, and it should not be continuously poured from one direction, and impact on the steel structure support frame 1, the horizontal rod 61, the inclined rod 62, the positioning plate 4 or the sleeve 5, the anchor box 3 and the like or lateral displacement should be avoided. During the vibration process, special attention should be paid to prevent the vibration rod from impacting the steel structure support frame 1, the horizontal rod 61, the inclined rod 62, the positioning plate 4 or the sleeve 5, the anchor box 3 and the like. When the concrete is poured, real-time monitoring should also be carried out throughout the process (a reflective sheet 93 is attached to the calibration point 43 of the positioning plate 4, and the three-dimensional coordinates of the center of the reflective sheet 93 are tracked and measured in real time by using a high-precision digital display total station, or the three-dimensional coordinates of the calibration point 43 of the positioning plate 4 are tracked and measured in real time by using a high-precision laser tracker, and the data changes before and after are observed, recorded and compared, or compared with the three-dimensional coordinate data in the BIM model), and third accuracy adjustment (when the top elevation and axis position of the sleeve 5 deviate from the design allowable error, the basket bolt 92 is used for timely adjustment according to the comparison data of the real-time monitoring of the three-dimensional coordinates of the calibration point 43).

[0059] In addition, after the pouring of the device foundation 7 is completed, a retest is immediately carried out before the final setting, and the retest method is the same as the real-time monitoring method during pouring. Once it is found that there is a change exceeding the allowable error, the positioning is finally adjusted by using the same method as the third accuracy adjustment. After the concrete of the device foundation 7 reaches the design strength, the U-shaped pull ring 42 protruding from the top surface of the concrete is cut by using a gas cutting device, and the steel wire rope 91, the basket bolt 92 and the fixed point 9 of the tie are removed.

[0060] The above only describes the preferred embodiments of the present application, and does not limit the implementation and protection scope of the present application. Those skilled in the art should be able to realize that any equivalent replacement and obvious change made by referring to the content of the present application should be included in the protection scope of the present application.

Claims

1. A high-precision embedding method for a power machine sleeve embedded part, characterized in that, The method comprises the following steps: S01, designing and making a steel structure support frame and a base; S02, placing the steel structure support frame at the bottom of an anchoring box of a power machine, placing the base at the bottom of the steel structure support frame, positioning, installing, assembly welding the base, the steel structure support frame and the anchoring box, and performing first precision adjustment; S03, precisely positioning the sleeve with the positioning plate, and then assembly welding the positioning plate and the sleeve, to form a combined part of the sleeve and the positioning plate; S04, integrally installing and fixing the combined part of the sleeve and the positioning plate on the anchoring box, and reinforcing and supporting around the combined part; S05, adjustably pulling the positioning plate and the fixed points around the equipment foundation, binding the equipment foundation steel bars, and performing second precision adjustment; S06, supporting a formwork, pouring concrete, and performing third precision adjustment in real time.

2. The high precision embedment method of the power machine sleeve embedment according to claim 1, characterized in that, In step S02, the base is positioned and pre-buried during the construction of the cushion layer or the lower bearing platform of the equipment foundation according to the designed position of the anchoring box. After the concrete of the cushion layer or the lower bearing platform is cured to reach the designed strength, the column of the steel structure support frame is welded and fixed on the base, and the anchoring box is installed and welded on the steel structure support frame, and then the first precision adjustment is performed. After the first precision adjustment meets the requirements, the column foot foundation is poured on the base and the column position.

3. The high precision embedding method of the power machine sleeve embedded part according to claim 2, characterized in that, The column foot foundation is poured with concrete of higher strength than the equipment foundation.

4. The high precision embedment method of a power machine sleeve embedment according to claim 1, characterized in that, In step S03, the positioning plate is placed upside down on a bracket, and then the upper opening of the sleeve is turned over and inserted through the round hole of the positioning plate and extends out of the round hole, and then the positioning plate is welded and fixed with the sleeve by using circumferential fillet welding, to form the combined part of the sleeve and the positioning plate.

5. The high precision embedment method of a power machine sleeve embedment according to claim 1, characterized in that, A plurality of exhaust holes are formed in the positioning plate.

6. The high precision embedment method of a power machine sleeve embedment according to claim 1, characterized in that, A plurality of U-shaped pull rings are fixedly installed on the positioning plate.

7. The high precision embedment method of a power machine sleeve embedment according to claim 1, characterized in that, At least three calibration points are arranged on the top of the positioning plate.

8. The high precision embedment method of a power machine sleeve embedment according to claim 1, characterized in that, In step S04, after the concrete strength of the column foot foundation of the steel structure support frame reaches at least 80% of the designed strength, the combined part of the sleeve and the positioning plate is integrally hoisted to the anchoring box, the verticality of the installation of the combined part of the sleeve and the positioning plate is adjusted, the lower opening of the sleeve is precisely positioned and welded and fixed with the top of the anchoring box, and horizontal bars and inclined bars are arranged around the steel structure support frame and the combined part of the sleeve and the positioning plate, and the horizontal bars and the inclined bars are welded and reinforced with the steel structure support frame and the sleeve.

9. The high-precision pre-burying method of the power machine sleeve pre-burying part according to claim 6, characterized in that, In step S05, the U-shaped pull rings on the top of the positioning plate are used to pull the fixed points around the equipment foundation by using basket bolts and steel wire ropes, and the adjustment of the basket bolts is used to realize the adjustable pulling. Then the equipment foundation steel bars are bound, and the second precision adjustment is performed. After the second precision adjustment meets the requirements, the formwork is supported, and the equipment foundation concrete is integrally poured.

10. The high precision embedment method of a power machine sleeve embedment according to claim 1, characterized in that, In step S06, the whole process is monitored in real time when the concrete is poured. A reflective sheet is attached to the calibration point of the positioning plate, and the three-dimensional coordinates of the center of the reflective sheet are tracked and measured in real time by using a high-precision digital display total station or a laser tracker. The data changes before and after are observed, recorded and compared, or compared with the three-dimensional coordinate data in the BIM model. When the top elevation and axis position of the sleeve embedded part deviate beyond the design allowable error, the third precision adjustment is made in time by using the basket bolt.

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