A deformation detection and measurement device for on-site splicing construction of major arched beams and its use method

Abstract

A deformation detection and measurement device for on-site splicing construction of major arched beams and a method for using the same, the device comprising: a frame for installing various parts; a jack fixing assembly for fixing the jack; the jack fixing assembly is arranged on the frame, and the jack is arranged on the jack fixing assembly; a fixed support assembly for supporting the bottom of the major arched beam; the fixed support assembly is arranged on the jack; a deformation detection steel wire erection assembly for erecting a deformation detection steel wire; the deformation detection steel wire erection assembly is arranged on the frame. The deformation detection and measurement device for on-site splicing construction of major arched beams provided in the present application and a method for using the same can improve the splicing quality of major arched beams on site and meet the relevant installation requirements of major arched beams.

Description

Technical Field

[0001] The invention belongs to the technical field of major arched beams, and in particular relates to a major arched beam on-site splicing construction deformation detection and measurement device and a use method thereof. Background Art

[0002] In power plants, metallurgy and other industries, heavy long arch beams such as boiler plate beams and cooling bed crane beams are often needed to support steam drums, cranes and other related heavy equipment. These beams are prefabricated in sections at the processing plant and then transported to the site for splicing and arching. After splicing, the distortion and pre-arch degree must comply with relevant specifications.

[0003] During the butt welding of arch beams, since long arch beams are basically large H-shaped steels with thick flange plates and webs, the uneven temperature changes caused by multi-layer and multi-pass welding during the butt welding process will cause distortion and pre-arch value deviation of the long arch beams. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a deformation detection and measurement device for on-site splicing construction of a major arched beam, comprising:

[0005] A rack for mounting various parts;

[0006] A jack fixing assembly, used for fixing the jack; the jack fixing assembly is arranged on the frame, and the jack is arranged on the jack fixing assembly;

[0007] A fixed support assembly, used to support the bottom of the large arched beam; the fixed support assembly is arranged on the jack;

[0008] The deformation detection steel wire erection assembly is used for erecting the deformation detection steel wire; the deformation detection steel wire erection assembly is arranged on the frame.

[0009] Preferably, the jack fixing assembly comprises: a base plate and a fixing groove, wherein the base plate is arranged on the frame, the fixing groove is arranged on the base plate, and the jack is fixed in the fixing groove.

[0010] Preferably, the fixed support assembly includes: a horizontal support plate, a vertical support plate and a clamping top screw, wherein the horizontal support plate is arranged on the jack, the vertical support plate is vertically arranged on the horizontal support plate, and the clamping top screw is screwed on the vertical support plate.

[0011] Preferably, the deformation detection steel wire erection assembly comprises: a bracket, a top wire rack and a steel wire fastener, wherein the bracket is arranged on the frame, the top wire rack is arranged on the bracket, and the steel wire fastener is arranged on the bracket.

[0012] The present invention also provides a method for using a deformation detection and measurement device for on-site splicing construction of a major arched beam, wherein the deformation detection and measurement device for on-site splicing construction of a major arched beam comprises any of the above-mentioned deformation detection and measurement devices for on-site splicing construction of a major arched beam, and the method comprises the steps of:

[0013] Install the jack on the jack fixing assembly;

[0014] Installing the fixed support assembly on the jack;

[0015] supporting a heavy arched beam on the fixed support assembly;

[0016] Installing a deformation detection steel wire on the deformation detection steel wire installation assembly;

[0017] The deformation detection steel wire is used to perform deformation detection on the heavy arched beam.

[0018] The present application provides a deformation detection and measurement device for on-site splicing construction of major arched beams and a method for using the device, which can improve the splicing quality of major arched beams on site and meet the relevant installation requirements of major arched beams. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the overall structure of a deformation detection and measurement device for on-site splicing construction of a large arched beam provided by the present invention;

[0021] Figure 2 It is a partial structural schematic diagram of a deformation detection and measurement device for on-site splicing construction of a large arched beam provided by the present invention;

[0022] Figure 3 It is a partial structural schematic diagram of a deformation detection and measurement device for on-site splicing construction of a large arched beam provided by the present invention;

[0023] Figure 4 It is a partial structural schematic diagram of a deformation detection and measurement device for on-site splicing construction of a large arched beam provided by the present invention;

[0024] Figure 5 It is a partial structural schematic diagram of a deformation detection and measurement device for on-site splicing construction of a large arched beam provided by the present invention;

[0025] Figure 6 The present invention is a schematic diagram of the use status of a deformation detection and measurement device for on-site splicing construction of a large arched beam provided by the present invention. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0027] like Figure 1-6 In the embodiment of the present application, the present invention provides a deformation detection and measurement device for on-site splicing construction of a major arched beam, comprising:

[0028] The frame 10 is used to install various parts;

[0029] The jack fixing assembly 20 is used to fix the jack 50; the jack fixing assembly 20 is arranged on the frame 10, and the jack 50 is arranged on the jack fixing assembly 20;

[0030] A fixed support assembly 30 is used to support the bottom of the large arched beam 60; the fixed support assembly 30 is arranged on the jack 50;

[0031] The deformation detection steel wire erection assembly 40 is used to erect the deformation detection steel wire; the deformation detection steel wire erection assembly 40 is disposed on the frame 10 .

[0032] When in use, according to the size and weight of the large arched beam 60 and the arch control point, the jack fixing assembly 20 is placed using a theodolite and welded to the frame 10. Then the jack 50 is placed in the jack fixing assembly 20 and the top elevation is ensured to be within a horizontal range. Then the fixed support assembly 30 is fixed to the lower flange of the large arched beam 60 according to the position of the jack, ensuring that the horizontal part of the fixed support assembly 30 is in close contact with the lower flange plate of the arch beam. All fixed support assemblies 30 should be tightened symmetrically and evenly to ensure that each fixed support assembly 30 is in a tightened and clamped state, and the entire arch beam is in a free state without distortion. Next, the deformation detection steel wire erection assembly 40 is arranged at both ends of the major arched beam 60, and 5 steel wires are hung and fixed using the deformation detection steel wire erection assembly 40. The distance between the steel wire and the flange plate and top plate to be detected on the major arched beam 60 is controlled within 50-100mm to meet the measurement and control requirements of the dial indicator or the outer diameter micrometer. Five dial indicators are fixed at four positions of the flange plate and the top plate, and are adjusted to zero. During the welding process, a curve of the upper supply change is fitted through the changes in the values ​​of the five dial indicators, and then compared with the theoretical upper supply curve; the construction personnel make appropriate adjustments to the welding position, welding current and jack support position based on the difference between the two curves, and finally obtain a major arched beam 60 whose distortion deformation and upper camber value meet the requirements.

[0033] like Figure 1-6 In an embodiment of the present application, the jack fixing assembly 20 includes: a base plate 21 and a fixing groove 22, wherein the base plate 21 is arranged on the frame 10, the fixing groove 22 is arranged on the base plate 21, and the jack 50 is fixed in the fixing groove 22.

[0034] The jack fixing assembly 20 is fixed on the frame 10. According to the size of the required large arched beam 60 and the key pre-arch control point, a stable force support point is provided for the lifting jack 50 to ensure the stability of the jack 50 during the assembly process. The jack fixing assembly 20 is welded and fixed to the frame 10. The bottom plate 21 is 20 mm thick and is laid on the concrete of the frame 10. It is welded and fixed to the embedded steel plate at the edge of the concrete floor. Its main function is to enhance the flatness of the concrete floor and protect the components from damage to the concrete. The fixing groove 22 is made of steel plate into a U-shaped groove shape and is welded to the bottom bottom plate 21. Before welding, the corresponding support position is required to ensure that the jack 50 is perpendicular to the fixing groove 22 of the horizontal part of the support system when working after it is fixed.

[0035] like Figure 1-6In an embodiment of the present application, the fixed support assembly 30 includes: a horizontal support plate 31, a vertical support plate 32 and a clamping top screw 33, wherein the horizontal support plate 31 is arranged on the jack 50, the vertical support plate 32 is vertically arranged on the horizontal support plate 31, and the clamping top screw 33 is screwed onto the vertical support plate 32.

[0036] The fixed support assembly 30 is made of steel and is combined with a hydraulic jack 50 to form a height-adjustable major arch beam 60 support tool. The number of supports is determined according to the length of the spliced ​​major arch beam 60 and the pre-arch support point. The fixed support assembly 30 usually supports the two spliced ​​major arch beams 60 at different points to ensure the firmness and stability of the support. Among them, the fixed support assembly 30 mainly uses the device configured by itself to fix the bracket on the lower flange plate of the major arch beam 60, providing a stable support surface for the jack 50 at the bottom. The function of the jack 50 is to use the jack 50 to pre-arch support it according to the relevant support point pre-arch value designed by the factory manufacturing, so as to ensure that the major arch beam 60 is in a pre-arch free state during welding. At the same time, during welding, the corresponding arch adjustment can be made in time according to the expansion and contraction of the weld of the major arch beam 60 during welding. The clamping screw 33 is a tool used to effectively fix the fixed support assembly 30 to the large arched beam 60, and can accurately fix the large arched beam 60 according to the determined pre-arch control point. The horizontal support plate 31 is the horizontal part of the fixed support assembly 30, which is a box-shaped structure welded by H-shaped steel. Its size corresponds to the width of the lower flange plate of the large arched beam 60. Two square grooves made of steel plates are set at the bottom of the fixed support assembly 30 to locate the piston of the jack 50 and prevent its movement from causing uneven support force. The vertical support plate 32 is the vertical part of the fixed support assembly 30, which is made of H-shaped steel and has a hole drilled in the middle part to fix the fixed part of the clamping screw 33.

[0037] like Figure 1-6 In the embodiment of the present application, the deformation detection steel wire erection assembly 40 includes: a bracket 41, a top wire rack 42 and a steel wire fastener 43, wherein the bracket 41 is arranged on the frame 10, the top wire rack 42 is arranged on the bracket 41, and the steel wire fastener 43 is arranged on the bracket 41.

[0038] The deformation detection steel wire erection assembly 40 is arranged at both ends of the entire major arched beam 60. The arrangement should be projected using theodolite and level, and its lower jack 50 is arranged correspondingly under the support beam. The deformation detection steel wire erection assembly 40 is mainly to make and install a stable measurement and control wire frame on the steel plate floor at both ends of the major arched beam 60, which is used to erect the steel wire. The wire frame can automatically tighten the steel wire. A total of five reference lines are set on both sides of the upper and lower flange plates of the major arched beam 60, and at the joints on the top of the upper flange plate. Among them, the four steel wires on the sides of the upper and lower flange plates are used to detect the distortion and deformation of the major arched beam 60; the steel wire on the top of the upper flange plate is used to detect the change in the camber value during welding. Magnetic base dial indicators are respectively set near the five reference lines, and the corresponding installation position of the magnetic base should be close to the welding site, so as to effectively and real-time reflect the expansion and contraction change measurement values ​​caused by changes in welding temperature. The bracket 41 is welded by channel steel, and the threading hole is determined and drilled according to the height position of the western flange plate on the major arched beam 60. It includes four measuring points on the upper and lower flange plates and a top measuring point, which are used to cooperate with the steel wire fastener 43 to hang and fasten the steel wire. The top wire frame 42 is assembled with a screw rod and matching bolts and a bracket, and is mainly used to fix and detect the change of the pre-arch degree at the top of the major arched beam 60, and to cooperate with the steel wire fastener 43 to set up and fasten the steel wire. The steel wire fastener 43 is fixed on the steel section with a roller. The fixed position of the roller is determined according to the position of the upper and lower flange plates of the major arched beam 60, and the top wire frame 42 is used to set up and fasten the steel wire.

[0039] The present application provides a deformation detection and measurement device for on-site splicing construction of major arched beams and a method for using the device, which can improve the splicing quality of major arched beams on site and meet the relevant installation requirements of major arched beams.

[0040] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A deformation detection and measurement device for on-site splicing construction of major arched beams, characterized in that: include: A rack for mounting various parts; A jack fixing assembly, used for fixing the jack; the jack fixing assembly is arranged on the frame, and the jack is arranged on the jack fixing assembly; A fixed support assembly, used to support the bottom of the large arched beam; the fixed support assembly is arranged on the jack; A deformation detection steel wire erection component is used for erecting deformation detection steel wire; the deformation detection steel wire erection component is arranged on the frame, and is arranged at both ends of the entire major arched beam using a theodolite and a level, and the lower jack of the deformation detection steel wire erection component is arranged correspondingly below the support beam; the deformation detection steel wire erection component is a measurement and control wire rack, which can perform tightening and loosening operations on the steel wire; a total of five reference lines are set on both sides of the upper and lower flange plates of the major arched beam, and at the joints on the top of the upper flange plate, among which the four steel wires on the sides of the upper and lower flange plates are used to detect the twisting deformation of the major arched beam; the steel wire on the top of the upper flange plate is used to detect the change in the camber value during welding; magnetic base dial indicators are respectively set near the five reference lines, and the corresponding positions of the magnetic bases are set close to the welding site to reflect the expansion and contraction change measurement values ​​caused by changes in welding temperature in real time.

2. The deformation detection and measurement device for on-site splicing construction of large arched beams according to claim 1 is characterized in that: The jack fixing assembly comprises: a bottom plate and a fixing groove, wherein the bottom plate is arranged on the frame, the fixing groove is arranged on the bottom plate, and the jack is fixed in the fixing groove.

3. The deformation detection and measurement device for on-site splicing construction of large arched beams according to claim 1 is characterized in that: The fixed support assembly includes: a horizontal support plate, a vertical support plate and a clamping top screw, wherein the horizontal support plate is arranged on the jack, the vertical support plate is vertically arranged on the horizontal support plate, and the clamping top screw is screwed on the vertical support plate.

4. The deformation detection and measurement device for on-site splicing construction of large arched beams according to claim 1 is characterized in that: The deformation detection steel wire erection assembly includes: a bracket, a top wire frame and a steel wire fastener, wherein the bracket is arranged on the frame, the top wire frame is arranged on the bracket, and the steel wire fastener is arranged on the bracket.

5. A method for using a deformation detection and measurement device for on-site splicing construction of a major arched beam, characterized in that: The device for detecting and measuring deformation of a major arched beam during on-site splicing construction comprises the device for detecting and measuring deformation of a major arched beam during on-site splicing construction as claimed in any one of claims 1 to 4, and the method comprises the steps of: Install the jack on the jack fixing assembly; Installing the fixed support assembly on the jack; supporting a heavy arched beam on the fixed support assembly; Installing a deformation detection steel wire on the deformation detection steel wire installation assembly; The deformation detection steel wire is used to perform deformation detection on the heavy arched beam.

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