Assembling and positioning device for membrane wall tube panel type component

Abstract

The utility model discloses an assembling and positioning device for membrane type wall tube panel type components, which comprises at least two circular tube equal-variable-pitch supporting mechanisms and at least two flat steel equal-variable-pitch supporting mechanisms, and the circular tube equal-variable-pitch supporting mechanisms and the flat steel equal-variable-pitch supporting mechanisms are both arranged on a rack. The round pipe equal-variable-pitch supporting mechanism is provided with a plurality of round pipe limiting pieces, the flat steel equal-variable-pitch supporting mechanism is provided with a plurality of flat steel supporting frames, the flat steel equal-variable-pitch supporting mechanism is located between the two round pipe equal-variable-pitch supporting mechanisms, and the flat steel supporting frames of every two adjacent flat steel equal-variable-pitch supporting mechanisms are distributed in a staggered mode. According to the utility model, the assembly and accurate positioning of the round pipe and the flat steel can be realized, and the spot welding accuracy requirement is met.

Description

Technical Field

[0001] This utility model belongs to the field of positioning device technology, specifically relating to a pairing positioning device for membrane wall tube screen components. Background Technology

[0002] Membrane water-cooled wall panels are a common heat exchange structure with advantages such as good sealing, convenient installation, and high metal utilization. They are a technology related to boiler manufacturing. Widely used in large-capacity, high-temperature, and high-pressure boilers, especially coal-fired power plant boilers, they refer to water-cooled walls composed of airtight tube panels welded from flat steel and pipes. Membrane water-cooled wall panels ensure good furnace airtightness, significantly reducing the furnace leakage coefficient in negative-pressure boilers and improving combustion conditions. They also increase the effective radiant heating area, thus saving steel consumption. Currently, coal-fired power generation remains a cornerstone of my country's power structure and is crucial in building a new power structure. Membrane wall panel structures are key components of power plant boilers, requiring replacement, maintenance, and upgrades during boiler service. In addition to its primary applications, membrane water-cooled walls are also used in gasifiers. For example, the second-generation Tsinghua gasifier employs a water-cooled wall coal gasification process using coal-water slurry, and aerospace furnaces also utilize water-cooled wall structures. GSP (Gas-Specific Processing) pressurized coal gasification technology also employs membrane water-cooled walls, capable of withstanding gasification temperatures up to 2000℃. Furthermore, high-parameter waste heat boilers often utilize membrane water-cooled wall structures. Therefore, membrane water-cooled walls have wide applications in many fields.

[0003] Membrane water-cooled wall panels consist of multiple tubes and flat steel. Welding is the primary connection method between the tubes and flat steel in membrane water-cooled wall panels and is also the most important production process. Before welding, the tubes and flat steel need to be assembled and positioned. The positioning accuracy directly affects the dimensional accuracy of the welded panel. In most existing factories, the assembly and welding of most membrane wall panels are done manually. This not only results in low production efficiency but also makes it difficult to guarantee positioning accuracy, directly affecting welding precision and quality. Furthermore, the harsh working environment and continuous work by welders have adverse effects on their health. Utility Model Content

[0004] To address the aforementioned issues, this invention provides an assembly and positioning device for membrane-type wall-tube screen components, which enables the assembly and precise positioning of round tubes and flat steel, meeting the precision requirements for spot welding.

[0005] The embodiments of this utility model are achieved through the following technical solutions:

[0006] A pairing and positioning device for membrane wall tube screen components, the pairing and positioning device comprising at least two circular tube equal-pitch support mechanisms and at least two flat steel equal-pitch support mechanisms, both of which are mounted on a frame, each circular tube equal-pitch support mechanism having a plurality of circular tube limiting components, and each flat steel equal-pitch support mechanism having a plurality of flat steel support frames, the flat steel equal-pitch support mechanism being located between two circular tube equal-pitch support mechanisms, and the flat steel support frames of adjacent two flat steel equal-pitch support mechanisms being staggered.

[0007] In one embodiment of the present invention, the circular tube equal pitch support mechanism further includes a first base, a lifting structure and a circular tube equal pitch structure. The first base is installed on the frame, the lifting structure is installed on the first base, and the lifting structure drives the circular tube equal pitch structure to rise and fall. The circular tube limiting member is installed on the circular tube equal pitch structure.

[0008] In one embodiment of the present invention, the lifting structure includes a lifting drive component and a guide component. The guide component is installed on the circular tube constant pitch structure. One end of the lifting drive component is fixed to the first base, and the other end of the lifting drive component is connected to the circular tube constant pitch structure.

[0009] In one embodiment of this utility model, the circular tube constant pitch structure includes a second base, a circular tube pitch-changing drive, a circular tube transmission component, and a circular tube slider; the second base is connected to the lifting drive, and a threaded groove is provided in the second base, with the transmission component located in the threaded groove; the circular tube pitch-changing drive is fixed to the second base and connected to the circular tube transmission component; the circular tube slider is threadedly connected to the circular tube transmission component, and the circular tube slider is slidably connected to the second base; a plurality of circular tube limiting components are fixed to the circular tube slider.

[0010] In one embodiment of this utility model, the circular tube limiting member is provided with a dovetail groove.

[0011] In one embodiment of this utility model, the flat steel equal-pitch support mechanism includes a third base, a transverse structure, and a flat steel equal-pitch structure; the third base is installed on the frame; the transverse structure is disposed in the third base and is slidably connected to the flat steel equal-pitch structure; a plurality of flat steel support frames are installed on the flat steel equal-pitch structure.

[0012] In one embodiment of this utility model, the transverse structure includes a transverse drive component, a transverse screw, and a connecting block. The transverse drive component is fixed in the third base, the connecting block is threadedly connected to the transverse screw, and the connecting block is connected to the flat steel equal pitch structure. The transverse drive component drives the connecting block to reciprocate linearly through the transverse screw.

[0013] In one embodiment of this utility model, the flat steel equal pitch structure includes a fourth base, a flat steel pitch-changing drive component, a flat steel transmission component, and a flat steel slider; the fourth base is connected to the connecting block, and a threaded groove is provided in the fourth base, with the transmission component located in the threaded groove; the flat steel pitch-changing drive component is fixed to the fourth base and connected to the flat steel transmission component; the flat steel slider is threadedly connected to the flat steel transmission component, and the flat steel slider is slidably connected to the fourth base; a plurality of flat steel support frames are fixed to the flat steel slider.

[0014] In one embodiment of this utility model, the flat steel support frame includes an upright plate and a brush rack. The bottom of the upright plate is fixed on the flat steel slider, and the flat steel is placed on the top of the upright plate. The brush rack is fixed on the left and right sides of the upright plate respectively.

[0015] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0016] This utility model, through the equal-pitch support mechanism for round tubes and equal-pitch support mechanism for flat steel, can realize the assembly and precise positioning of round tubes and flat steel, and meet the requirements for spot welding accuracy. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the assembly and positioning device in this utility model;

[0019] Figure 2 for Figure 1 Top view;

[0020] Figure 3 This is a schematic diagram of the circular tube constant pitch support mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the flat steel equal pitch support mechanism in this utility model;

[0022] Figure 5 This is a schematic diagram of a flat steel constant pitch support mechanism for a transverse sliding structure.

[0023] Icons: 1-Frame, 2-Circular tube equal pitch support mechanism, 21-First base, 221-Lifting drive component, 23-Circular tube equal pitch structure, 231-Second base, 232-Circular tube equal pitch drive component, 234-Circular tube slider, 24-Circular tube limiting component, 241-Dovetail groove, 3-Flat steel equal pitch support mechanism, 31-Third base, 32-Transverse structure, 321-Transverse drive component, 322-Transverse screw, 323-Connecting block, 33-Flat steel equal pitch structure, 331-Fourth base, 332-Flat steel equal pitch drive component, 334-Flat steel slider, 34-Flat steel support frame, 341-Upright plate, 342-Brush row. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0027] In the description of this utility model, it should be noted that if terms such as "inner" or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "configure," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0029] Please refer to Figure 1-5 This embodiment provides an assembly and positioning device for membrane wall tube screen components, comprising at least two circular tube equal-pitch support mechanisms 2 and at least two flat steel equal-pitch support mechanisms 3. Both the circular tube equal-pitch support mechanisms 2 and the flat steel equal-pitch support mechanisms 3 are mounted on a frame 1. The circular tube equal-pitch support mechanisms 2 are provided with several circular tube limiting components 24, and the flat steel equal-pitch support mechanisms 3 are provided with several flat steel support frames 34. The flat steel equal-pitch support mechanisms 3 are located between two circular tube equal-pitch support mechanisms 2, and the flat steel support frames 34 of adjacent two flat steel equal-pitch support mechanisms 3 are staggered. The staggered arrangement of adjacent front and rear flat steel equal-pitch support mechanisms allows for better clamping and positioning of the flat steel. The flat steel equal-pitch support mechanisms 3 can realize the overall lateral movement of the flat steel row and the adjustment of the spacing between the flat steels, while the circular tube equal-pitch support mechanisms 2 can realize the overall lifting and lowering of the circular tube row and the adjustment of the spacing between the circular tubes. During production, round tubes are placed on round tube equal-distance support mechanism 2, and flat steel is placed on flat steel equal-distance variable-distance support mechanism 3. Several round tubes and several flat steels constitute round tube rows and flat steel rows, which are distributed alternately. When feeding, the round tube rows are fed first. Using the round tubes as the base, the position parameters of the flat steel are adjusted so that the relative positions of the round tubes and flat steels meet the assembly and precise positioning required for welding, and meet the spot welding accuracy requirements.

[0030] Please refer to Figure 1-3 Specifically, the circular tube equal pitch support mechanism 2 also includes a first base 21, a lifting structure and a circular tube equal pitch structure 23. The first base 21 is installed on the frame 1, the lifting structure is installed on the first base 21, and the lifting structure drives the equal pitch structure to rise and fall. The circular tube limiting member 24 is installed on the equal pitch structure. The lifting mechanism realizes the overall lifting and falling of the circular tube row, and the circular tube equal pitch structure 23 realizes the adjustment of the spacing between the circular tubes.

[0031] Please refer to Figure 3Specifically, the lifting structure includes a lifting drive component 221 and a guide component. The guide component is a linear guide rail, installed on the circular tube equal-pitch structure 23, allowing the circular tube equal-pitch structure 23 to slide up and down relative to the first base 21. The lifting drive component 221 is a device capable of linear reciprocating motion, such as a servo electric cylinder or a hydraulic cylinder. In this embodiment, the lifting drive component 221 is a servo electric cylinder. One end of the servo electric cylinder is fixed inside the first base 21, and the other end of the servo electric cylinder is connected to the circular tube equal-pitch structure 23, thereby achieving the lifting and lowering of the circular tube equal-pitch structure 23. The lifting structure enables the adjustment of the tube screen height, automatically adjusting the horizontal height of the circular tube according to different diameter specifications. When matching circular tubes of different diameters, it ensures that the flat steel can always remain in the center position of the circular tube, meeting the spot welding accuracy requirements.

[0032] Please refer to Figure 3 Specifically, the circular tube constant pitch structure 23 includes a second base 231, a circular tube pitch-changing drive component 232, a circular tube transmission component, and a circular tube slider 234. The second base 231 is connected to the lifting drive component 221, and the second base 231 is provided with a screw groove. The circular tube transmission component adopts a screw, which is installed in the screw groove. Multiple screw grooves distributed along its axial direction are provided on the outer wall of the screw. The circular tube pitch-changing drive component 232 adopts a servo motor and is fixed to the second base 231. The circular tube pitch-changing drive component 232 drives the circular tube transmission component to rotate. The circular tube slider 234 is connected to the circular tube transmission component. The circular tube slider 234 is provided with a driven guide component that can slide along the stacked grooves. At the same time, the circular tube slider 234 is slidably connected to the second base 231 through a linear guide rail. The circular tube limiting component 24 is fixed to the circular tube slider 234, and one circular tube limiting component 24 is correspondingly installed on one circular tube slider 234. In use, the height of the round tube array is first adjusted according to the position of the flat steel by the lifting drive 221, so that the relative position of the round tube and the flat steel in terms of height is adjusted. The round tube pitch change drive 232 drives the round tube transmission component, thereby realizing that each round tube limiting component 24 moves closer or further away from each other, and adjusting the distance between each round tube limiting component 24. Moreover, the distance between each round tube limiting component 24 is equal. The round tube equal pitch change structure 23 of this embodiment can adopt the existing patent with announcement number CN214520169U and patent name "Pitch Change Mechanism". The pitch change mechanism of this patent is the same as the structure of the round tube equal pitch change structure 23 of this embodiment.

[0033] It should be noted that the round tube limiting component 24 is provided with a dovetail groove 241. The round tube is placed in the dovetail groove 241 to achieve the limiting, and it can be used for pipes of various diameters.

[0034] Please refer to Figure 4-5In this embodiment, the flat steel equal-pitch support mechanism 3 includes a third base 31, a transverse moving structure 32, and a flat steel equal-pitch structure 33. The third base 31 is mounted on the frame 1. The transverse moving structure 32 is disposed within the third base 31 and is slidably connected to the flat steel equal-pitch structure 33, used to drive the flat steel equal-pitch structure 33 to move laterally as a whole, thereby realizing the flat steel arrangement. Specifically, the transverse moving structure 32 includes a transverse moving drive component 321, a transverse moving screw 322, and a connecting block 323. The transverse moving drive component 321 is fixed within the third base 31, and the transverse moving... The driving component 321 adopts a servo motor. The connecting block 323 is threadedly connected to the transverse screw 322. At the same time, the connecting block 323 is connected to the flat steel equal pitch structure 33. The transverse driving component 321 drives the connecting block 323 to reciprocate linearly through the transverse screw 322. The connecting block 323 drives the flat steel equal pitch structure 33 to reciprocate linearly, realizing the overall transverse movement of the flat steel equal pitch structure 33. Several flat steel support frames 34 are installed on the flat steel equal pitch structure 33. In use, one flat steel is placed on one flat steel support frame 34.

[0035] Please refer to Figure 4-5 In this embodiment, the flat steel equal-pitch structure 33 includes a fourth base 331, a flat steel pitch-changing drive component 332, a flat steel transmission component, and a flat steel slider 334. The fourth base 331 is connected to the connecting block 323, and a threaded groove is provided in the fourth base 331. The flat steel transmission component is located in the threaded groove, and the transmission component adopts a transmission screw. The flat steel pitch-changing drive component 332 adopts a servo motor, which is fixed on the fourth base 331 and connected to the flat steel transmission component to drive the flat steel transmission component to rotate. The flat steel slider 334 is threadedly connected to the flat steel transmission component, and at the same time, the flat steel slider 334 is slidably connected to the fourth base 331. When the flat steel transmission component drives the flat steel slider 334 to move linearly back and forth, the flat steel slider 334 slides along the fourth base 331. Several flat steel support frames 34 are installed on the flat steel slider 334. During production, one flat steel support frame 34 supports one flat steel. It should be noted that the flat steel equal pitch structure 33 in this embodiment can also adopt the existing patent with announcement number CN214520169U and patent name "Pitch Mechanism". The pitch mechanism of this patent is the same as the structure of the flat steel equal pitch structure 33 in this embodiment.

[0036] During operation, the width of the flat steel needs to be adjusted according to the size of the tube screen and the spacing between the round tubes. The flat steel pitch drive 332 can precisely adjust and control the distance between the two flat steel support frames 34, thereby realizing the function of matching the appropriate width of flat steel according to various specifications of round tubes, and realizing the assembly and precise positioning of flat steel and round tubes.

[0037] In this embodiment, the flat steel support frame 34 includes an upright plate 341 and a brush row 342. The bottom of the upright plate 341 is fixed on the flat steel slider 334, and the top of the upright plate 341 is used to place the flat steel. The brush row has two rows and is fixed on the left and right sides of the upright plate 341 respectively to prevent the flat steel on the top of the upright plate 341 from falling to the bottom of the frame 1.

[0038] Taking the welding of 6 pipes and 5 flat steel bars as an example, the procedure steps for using the positioning device in this group are as follows:

[0039] (1) The round tubes are fed manually or by feeding equipment. According to the diameter of the round tubes and the spacing between the tubes, the spacing of the round tube limiters 24 is adjusted by the round tube pitch drive 232, so as to realize the assembly and positioning of round tubes of different specifications, and to complete the horizontal spacing adjustment, thereby realizing the assembly and positioning of 6 round tubes.

[0040] (2) After the 6 round tubes are loaded, the height of the center horizontal plane of the round tube and the height of the center horizontal plane of the flat steel are adjusted by the lifting drive component 221 according to the diameter of the round tube, so as to achieve precise assembly and positioning of round tubes and flat steel of different specifications and complete the adjustment of the height direction.

[0041] (3) The flat steel is fed manually or by feeding equipment. The position of the round tube is used as the base. The position of the flat steel support frame 34 is adjusted by the transverse drive 321 and the flat steel pitch drive 332 to ensure that the flat steel support frame 34 stably supports the flat steel.

[0042] (4) After the precise assembly and positioning of the round pipe and flat steel are completed, the spot welding of 6 pipes and 5 flat steel is completed.

[0043] This utility model, through the round tube equal pitch support mechanism 2 and the flat steel equal pitch support mechanism 3, can realize the assembly and precise positioning of the round tube and the flat steel, and meet the spot welding accuracy requirements.

[0044] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for assembling and positioning membrane wall tube screen components, characterized in that, The assembly positioning device includes at least two circular tube equal-pitch support mechanisms and at least two flat steel equal-pitch support mechanisms. Both the circular tube equal-pitch support mechanisms and the flat steel equal-pitch support mechanisms are mounted on a frame. The circular tube equal-pitch support mechanism is provided with several circular tube limiting components, and the flat steel equal-pitch support mechanism is provided with several flat steel support frames. The flat steel equal-pitch support mechanism is located between two circular tube equal-pitch support mechanisms, and the flat steel support frames of two adjacent flat steel equal-pitch support mechanisms are staggered.

2. The assembly and positioning device for membrane wall tube screen components according to claim 1, characterized in that, The circular tube constant pitch support mechanism further includes a first base, a lifting structure, and a circular tube constant pitch structure. The first base is installed on the frame, the lifting structure is installed on the first base, and the lifting structure drives the circular tube constant pitch structure to rise and fall. The circular tube limiting member is installed on the circular tube constant pitch structure.

3. The assembly and positioning device for membrane wall tube screen components according to claim 2, characterized in that, The lifting structure includes a lifting drive component and a guide component. The guide component is installed on the circular tube constant pitch structure. One end of the lifting drive component is fixed to the first base, and the other end of the lifting drive component is connected to the circular tube constant pitch structure.

4. The assembly and positioning device for membrane wall tube screen components according to claim 3, characterized in that, The circular tube constant pitch structure includes a second base, a circular tube pitch-changing drive component, a circular tube transmission component, and a circular tube slider; the second base is connected to the lifting drive component, and the second base has a threaded groove, in which the transmission component is located; the circular tube pitch-changing drive component is fixed to the second base and connected to the circular tube transmission component; the circular tube slider is threadedly connected to the circular tube transmission component, and the circular tube slider is slidably connected to the second base; a plurality of circular tube limiting components are fixed to the circular tube slider.

5. The assembly and positioning device for membrane wall tube screen components according to claim 1, characterized in that, The circular tube limiting component is provided with a dovetail groove.

6. A device for assembling and positioning membrane wall tube screen components according to claim 1 or 2, characterized in that, The flat steel constant pitch support mechanism includes a third base, a transverse structure, and a flat steel constant pitch structure; the third base is installed on the frame; the transverse structure is located inside the third base and is slidably connected to the flat steel constant pitch structure; a plurality of flat steel support frames are installed on the flat steel constant pitch structure.

7. The assembly and positioning device for membrane wall tube screen components according to claim 6, characterized in that, The lateral movement structure includes a lateral movement drive, a lateral movement screw, and a connecting block. The lateral movement drive is fixed in the third base. The connecting block is threadedly connected to the lateral movement screw and connected to the flat steel constant pitch structure. The lateral movement drive drives the connecting block to reciprocate linearly through the lateral movement screw.

8. The assembly and positioning device for membrane wall tube screen components according to claim 7, characterized in that, The flat steel equal-pitch structure includes a fourth base, a flat steel pitch-changing drive component, a flat steel transmission component, and a flat steel slider; the fourth base is connected to the connecting block, and a threaded groove is provided in the fourth base, with the transmission component located in the threaded groove; the flat steel pitch-changing drive component is fixed to the fourth base and connected to the flat steel transmission component; the flat steel slider is threadedly connected to the flat steel transmission component, and the flat steel slider is slidably connected to the fourth base; a plurality of flat steel support frames are fixed to the flat steel slider.

9. The assembly and positioning device for membrane wall tube screen components according to claim 8, characterized in that, The flat steel support frame includes an upright plate and a brush rack. The bottom of the upright plate is fixed to the flat steel slider, and the flat steel is placed on the top of the upright plate. The brush rack is fixed on the left and right sides of the upright plate respectively.

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