Assembly device of waste heat boiler

By designing frame components and scissor mechanisms, the adjustable support components of the waste heat boiler can be assembled quickly and accurately, solving the problems of difficult control of welding precision and low efficiency in traditional welding, improving assembly efficiency and accelerating the cooling rate after welding.

CN119282678APending Publication Date: 2025-01-10HUADIAN JINAN ZHANGQIU THERMAL POWER CO LTD
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Patent Information

Application Number
CN202411685562.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-23
Publication Date
2025-01-10

AI Technical Summary

Technical Problem

The welding precision between boiler pipes in existing waste heat boilers is difficult to control, and the different distances in different parts require metal support plates of different lengths, resulting in poor versatility and low efficiency of traditional manual welding.

Method used

An assembly device was designed, comprising a frame assembly, a scissor mechanism, an assembly assembly, a screw-driving assembly, and a drive mechanism. The scissor mechanism is used to achieve pre-positioning of the adjustable support assembly and synchronous screw assembly, while the cooling assembly is combined with a cooling component to accelerate the cooling rate after welding.

Benefits of technology

It enables rapid and precise assembly of adjustable support components, reduces assembly errors, improves efficiency, and accelerates the cooling process after welding through cooling components.

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Abstract

The invention discloses an assembling device of a waste heat boiler, and relates to the technical field of combination machining, the assembling device comprises a frame assembly, a scissor fork type mechanism, an assembling assembly, a screw driving assembly and a driving mechanism, the purpose of assembling an adjustable supporting assembly to the waste heat boiler at a time is achieved by means of the multiple assemblies, and compared with traditional manual welding, the assembling efficiency is improved. The assembly error is reduced, and the assembly efficiency is improved; due to the design of the scissor fork type mechanism, pre-positioning of the adjustable supporting assembly can be achieved, the screw hitting assembly can be guided to the assembling position, and pre-positioning and screw assembling can be conducted synchronously.
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Description

Technical Field

[0001] The invention relates to the technical field of combined processing, and in particular to an assembly device for a waste heat boiler. Background Art

[0002] At present, a certain type of waste heat boiler produced by the company adopts a segmented design. Two vertical boiler pipes are arranged on the side of the segmented waste heat boiler. In the traditional solution, in order to improve the stability between the upper and lower boiler pipes, a metal support plate is manually welded between the two. However, the welding accuracy of this method is difficult to control, and the distance between the two boiler pipes at different positions on the waste heat boiler is different, so it is necessary to select metal support plates of different lengths, which has poor versatility. Therefore, the company has designed an adjustable support assembly capable of adjusting the length, which includes upper and lower support blocks and a connecting pipe connected between the two support blocks. The two connecting pipes have different sizes, one of which is a small-sized connecting pipe can be inserted into the other connecting pipe, and a circular threaded hole is arranged on the connecting pipe of the large size. The two connecting pipes are connected and fixed by means of screws threaded in the threaded holes. The welding surface of the support block is provided with a plurality of convex ribs, and the support block is welded and fixed to the upper and lower boiler pipes by resistance welding. Therefore, for the above-mentioned assembly method, it is necessary to design a semi-automatic assembly device capable of realizing rapid installation. Summary of the invention

[0003] The object of the present invention is to provide an assembly device for a waste heat boiler to solve the above-mentioned multiple defects caused by the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions: an assembly device for a waste heat boiler, comprising a frame assembly, a scissor-type mechanism, an assembly assembly, a screw assembly and a driving mechanism; The frame assembly includes a top plate, a bottom plate, four columns and a supporting back plate, the two columns located at the front side are fixed between the top plate and the bottom plate by means of nuts, the two columns located at the rear side are installed between the top plate and the bottom plate by means of nuts and can move synchronously in the horizontal direction along the guide holes provided on the top plate and the bottom plate, and the supporting back plate is installed between the top plate and the bottom plate and is located at the rear side of the top plate; The scissor-type mechanism is installed between the columns, the assembly component is installed on the front side of the scissor-type mechanism and can unfold the adjustable support component and attach it to the upper and lower boiler pipes under the action of the scissor-type mechanism, and the support bracket in the assembly component is also installed with a positive contact; The screw driving assembly is installed between the two columns at the rear side and can move horizontally along with the columns toward the adjustable support assembly to tighten the screw into the adjustable support assembly; The driving mechanism is installed on the supporting back plate and connected with the screw driving assembly to drive the screw driving assembly and the two columns at the rear side to move horizontally.

[0005] Furthermore, the scissor-type mechanism has two groups, each group of the scissor-type mechanism specifically includes two scissor-type rods rotatably connected to each other and four supports installed at the ends of the scissor-type rods, and the four supports are respectively slidably connected to four columns; A support frame is also installed at the lower end of the top plate, and the rotating shaft in the middle of the scissor rod is installed at the lower end of the support frame by means of a bearing.

[0006] Furthermore, the assembly component includes a transverse plate, a support tube and a support bracket. The transverse plate is installed on two supports located at the front side and at the same height in the two groups of scissor-type mechanisms, and the support bracket is connected to the transverse plate by means of the support tube.

[0007] Furthermore, the upper end of the support bracket is open and is used to accommodate the support block in the adjustable support assembly. The support bracket is also provided with a notch for the connecting pipe in the adjustable support assembly to pass through.

[0008] Furthermore, the screw driving assembly comprises a support frame, a connecting seat 1, a screw driving machine and a machine base; There are two connecting seats and they are respectively installed and fixed on two columns located on the rear side. The support frame is connected to the column by means of the connecting seat. The support frame is provided with an elongated mounting hole that passes through the upper and lower parts. The machine base is located in the support frame and can slide in the support frame. The locking bolt can pass through the mounting hole to connect with the machine base and lock the machine base in the support frame. The screw driver is installed on the machine base.

[0009] Furthermore, the driving mechanism includes a servo motor, a lead screw, a base and a nut seat; The servo motor is installed on the support back plate and the output end of the servo motor is connected to the lead screw. The two ends of the lead screw are respectively connected to the base and the support back plate. The base is connected to the two columns located on the front side by means of two connecting seats. The nut seat is installed on the upper end of the rear side of the support frame and a nut matching the lead screw is installed in the nut seat.

[0010] Furthermore, it also includes a cooling assembly, which includes two groups of piston compression mechanisms and two groups of exhaust mechanisms respectively connected to the two groups of piston compression mechanisms.

[0011] Furthermore, the piston type compression assembly comprises a piston cylinder, a piston rod and an air outlet pipe, wherein the piston cylinder is mounted on one of the support tubes, one end of the piston rod is slidably connected in the piston cylinder, and the other end of the piston rod is mounted on the other support tube; The exhaust mechanism comprises a plurality of nozzles and a connecting pipe connecting the plurality of nozzles, wherein one of the nozzles is connected to the exhaust pipe.

[0012] Furthermore, the support frame is a rectangular tubular structure with openings at both ends.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention realizes the purpose of assembling the adjustable support assembly to the waste heat boiler at one time with the help of multiple components. Compared with traditional manual welding, it reduces assembly errors and improves assembly efficiency. The design of the scissor-type mechanism can not only realize the pre-positioning of the adjustable support assembly, but also guide the screw assembly to the assembly position, thereby realizing the simultaneous pre-positioning and screw assembly.

[0014] 2. The present invention also provides a cooling component between the two groups of assembly components arranged upper and lower, which can generate compressed gas and vertically weld the supporting block when the two groups of assembly components are close to each other and reset, so as to accelerate the cooling rate of the supporting block after welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention from the perspective of the present invention.

[0016] Figure 2 for Figure 1 Partial detail of point A in the middle.

[0017] Figure 3 It is the front view of the present invention.

[0018] Figure 4 It is a partial schematic diagram of the driving mechanism and the screw driving assembly in the present invention.

[0019] Figure 5 It is a partial schematic diagram of the screw driving assembly in the present invention.

[0020] Figure 6 It is a schematic diagram of assembling components in the present invention.

[0021] Figure 7 It is a schematic diagram of the structure of the adjustable support assembly in the present invention.

[0022] Figure 8 It is a working schematic diagram of the present invention.

[0023] in: 1 Frame assembly, 10 Top plate, 11 Bottom plate, 12 Column, 13 Support back plate, 14 Guide hole, 2 Scissor mechanism, 20 Scissor rod, 21 Support, 22 Rotating shaft, 23 Support frame, 3 Assembly assembly, 30 Cross plate, 31 Support pipe, 32 Support frame, 320 Notch, 33 Pad, 4 Screw assembly, 40 Support frame, 41 Connecting seat 1, 42 Screw machine, 43 Machine base, 44 Mounting hole, 5 Driving mechanism, 50 Servo motor, 51 Screw, 52 Base, 53 Nut seat, 54 Connecting seat 2, 6 Cooling assembly, 60 Piston cylinder, 61 Piston rod, 62 Exhaust pipe, 63 Nozzle, 64 Connecting pipe, 7 Adjustable support assembly, 70 Support block, 71 Connecting pipe, 72 Screw, 8 Positive contact, 9 Negative contact, 100 waste heat boiler, 200 boiler pipe. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0025] See also Figures 1 to 7 , the present invention provides a technical solution: An assembly device for a waste heat boiler includes a frame assembly 1, a scissor-type mechanism 2, an assembly assembly 3, a screw assembly 4 and a drive mechanism 5. The specific structure of the device is as follows: The frame assembly 1 includes a top plate 10, a bottom plate 11, four columns 12 and a supporting back plate 13. The two columns 12 located at the front side are fixed between the top plate 10 and the bottom plate 11 by means of nuts, and the two columns 12 located at the rear side are installed between the top plate 10 and the bottom plate 11 by means of nuts and can move synchronously in the horizontal direction along the guide holes 14 provided on the top plate 10 and the bottom plate 11. The supporting back plate 13 is installed between the top plate 10 and the bottom plate 11 and is located at the rear side of the top plate 10. The bottom plate 11 can be installed on a corresponding mobile device to facilitate overall movement.

[0026] The scissor-type mechanism 2 is installed between the columns 12, and the assembly component 3 is installed on the front side of the scissor-type mechanism 2 and can unfold the adjustable support component 7 and attach it to the upper and lower boiler pipes 200 under the action of the scissor-type mechanism 2. A positive contact 8 is also installed on the support bracket 32 ​​in the assembly component 3, and the positive contact 8 is electrically connected to the positive pole of the power supply. A negative contact 9 is set on the boiler body, and the two form a passage to realize the welding of the support block 70.

[0027] Specifically, there are two groups of scissor-type mechanisms 2, each group of scissor-type mechanisms 2 specifically includes two scissor-type rods 20 rotatably connected to each other and four supports 21 installed at the ends of the scissor-type rods 20, and the four supports 21 are respectively slidably connected to four columns 12; A support frame 23 is also installed at the lower end of the top plate 10, and the rotating shaft 22 in the middle of the scissor rod 20 is installed at the lower end of the support frame 23 by means of a bearing.

[0028] Specifically, the assembly components 3 have two groups and are arranged up and down, specifically including a transverse plate 30, a support pipe 31 and a support bracket 32. The transverse plate 30 is installed on two supports 21 located at the front side and at the same height in the two groups of scissor-type mechanisms 2. The support bracket 32 ​​is connected to the transverse plate 30 by means of the support pipe 31. The upper end of the support bracket 32 ​​is open and used to accommodate the support block 70 in the adjustable support assembly 7. The support bracket 32 ​​is also provided with a notch 320 for the connection pipe 71 in the adjustable support assembly 7 to pass through. In addition, an elastic pad 33 is also provided on the inner side of the support bracket 32, which is used to pre-fix the support block 70 to prevent it from shaking.

[0029] The screw driving assembly 4 is installed between the two columns 12 at the rear side and can move horizontally along with the columns 12 toward the adjustable support assembly 7 to tighten the screw 72 into the adjustable support assembly 7; The driving mechanism 5 is installed on the supporting back plate 13 and connected to the screw driving assembly 4 to drive the screw driving assembly 4 and the two columns 12 at the rear side to move horizontally.

[0030] Specifically, the screw driving assembly 4 includes a support frame 40, a connecting seat 41, a screw driving machine 42 and a machine base 43; There are two connecting seats 41 and they are respectively fixed on the two columns 12 located at the rear side. The support frame 40 is connected to the column 12 by means of the connecting seat 41. The support frame 40 is a rectangular tubular structure with openings at both ends. The support frame 40 is provided with a long strip-shaped mounting hole 44 that passes through from top to bottom. The machine base 43 is located in the support frame 40 and can slide in the support frame 40. The locking bolt can pass through the mounting hole 44 to connect with the machine base 43 and lock the machine base 43 in the support frame 40. The screw driver 42 is installed on the machine base 43. The design of the mounting hole 44 can adjust the position of the screw driver 42 according to different situations, so as to achieve accurate assembly of the screw 72.

[0031] In this embodiment, the driving mechanism 5 includes a servo motor 50, a lead screw 51, a base 52 and a nut seat 53; The servo motor 50 is mounted on the support back plate 13 and the output end of the servo motor 50 is connected to the lead screw 51. The two ends of the lead screw 51 are respectively connected to the base 52 and the support back plate 13. The base 52 is connected to the two columns 12 located at the front side by means of two connecting seats 54. The nut seat 53 is mounted on the upper end of the rear side of the support frame 40 and a nut matching the lead screw 51 is installed in the nut seat 53. In this way, the servo motor 50 drives the lead screw 51 to rotate forward and reverse, thereby adjusting the position of the support frame 40 in the horizontal direction, and then adjusting the distance between the screw driver 42 and the adjustable support assembly 7.

[0032] As a further improvement of the present invention, the present invention also includes a cooling assembly 6 for quickly cooling the welded support block 70, wherein the cooling assembly 6 includes two sets of piston compression mechanisms and two sets of exhaust mechanisms respectively connected to the two sets of piston compression mechanisms. The two sets of piston compression mechanisms are installed in opposite directions, so that the two sets of piston compression mechanisms can conveniently guide the gas to the corresponding exhaust mechanism during the exhaust process.

[0033] Specifically, the piston type compression assembly includes a piston cylinder 60, a piston rod 61 and an air outlet pipe 62, wherein the piston cylinder 60 is mounted on one of the support tubes 31, one end of the piston rod 61 is slidably connected in the piston cylinder 60, and the other end of the piston rod 61 is mounted on the other support tube 31; The exhaust mechanism includes a plurality of nozzles 63 and a connecting pipe 64 connecting the plurality of nozzles 63 , wherein one nozzle 63 is connected to the exhaust pipe 62 .

[0034] like Figure 8 As shown, the working process and principle of the present invention are as follows: First, manually place the upper and lower support blocks 70 in the adjustable support assembly 7 in the support bracket 32, and then move the entire frame assembly 1 to the target position with the help of a mobile device. Start the servo motor 50, which drives the lead screw 51 to rotate forward, thereby driving the support frame 40 and the column 12 located at the rear side to move horizontally toward the adjustable support assembly 7. Under the action of the scissor rod 20, the support bracket 32 ​​moves toward each other and drives the adjustable support assembly 7 to unfold until the support block 70 abuts against the boiler pipe 200. At this time, the drill bit of the screw driver 42 also contacts the screw 72. The screw driver 42 starts and tightens the screw 72 into the connecting pipe 71 to complete the secondary fixation of the adjustable support assembly 7. Finally, the power supply of the positive contact 8 and the negative contact 9 is turned on, and the support block 70 is welded and fixed to the boiler pipe 200 by resistance welding to complete the assembly process.

[0035] After assembly is completed, the servo motor 50 drives the lead screw 51 to reverse, and the upper and lower support brackets 32 approach each other and compress the piston compression assembly. The generated compressed gas is sprayed to the periphery of the support block 70 through the nozzle 63 to accelerate the cooling rate of the support block 70 after welding.

[0036] Based on the above, the present invention achieves the purpose of assembling the adjustable support component 7 to the waste heat boiler 100 at one time with the help of multiple components. Compared with traditional manual welding, it reduces assembly errors and improves assembly efficiency; the design of the scissor-type mechanism 2 can not only realize the pre-positioning of the adjustable support component 7, but also guide the screw driving component 4 to the assembly position, so as to realize the simultaneous pre-positioning and assembly of the screw 72; the present invention also arranges a cooling component 6 between the two groups of assembly components 3 arranged upper and lower, which can generate compressed gas and vertically weld the support block 70 in the process of the two groups of assembly components 3 approaching each other and resetting, so as to accelerate the cooling rate of the support block 70 after welding.

[0037] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. An assembly device for a waste heat boiler, characterized in that: It comprises a frame component (1), a scissor-type mechanism (2), an assembly component (3), a screw-driving component (4) and a driving mechanism (5); The frame assembly (1) comprises a top plate (10), a bottom plate (11), four columns (12) and a supporting back plate (13); the two columns (12) located at the front side are fixed between the top plate (10) and the bottom plate (11) by means of nuts, the two columns (12) located at the rear side are installed between the top plate (10) and the bottom plate (11) by means of nuts and can move synchronously in the horizontal direction along guide holes (14) provided on the top plate (10) and the bottom plate (11); the supporting back plate (13) is installed between the top plate (10) and the bottom plate (11) and is located at the rear side of the top plate (10); The scissor-type mechanism (2) is installed between the columns (12), the assembly component (3) is installed on the front side of the scissor-type mechanism (2) and can unfold the adjustable support component (7) and attach it to the upper and lower boiler pipes (200) under the action of the scissor-type mechanism (2), and the support frame (32) in the assembly component (3) is also installed with a positive contact (8); The screw driving assembly (4) is installed between the two rear columns (12) and can move horizontally along the columns (12) toward the adjustable support assembly (7) to tighten the screw (72) into the adjustable support assembly (7); The driving mechanism (5) is installed on the supporting back plate (13) and connected to the screw driving assembly (4) to drive the screw driving assembly (4) and the two columns (12) at the rear side to move horizontally.

2. The assembly device of a waste heat boiler according to claim 1, characterized in that: The scissor-type mechanisms (2) are provided in two groups, each group of the scissor-type mechanisms (2) specifically comprises two scissor-type rods (20) rotatably connected to each other and four supports (21) installed at the ends of the scissor-type rods (20), and the four supports (21) are respectively slidably connected to four upright posts (12); A support frame (23) is also installed at the lower end of the top plate (10), and the rotating shaft (22) in the middle of the scissor rod (20) is installed at the lower end of the support frame (23) by means of a bearing.

3. The assembly device of a waste heat boiler according to claim 2, characterized in that: The assembly component (3) comprises a transverse plate (30), a support tube (31) and a support bracket (32); the transverse plate (30) is mounted on two supports (21) located at the front side and at the same height in two groups of scissor-type mechanisms (2); and the support bracket (32) is connected to the transverse plate (30) by means of the support tube (31).

4. The assembly device of a waste heat boiler according to claim 3, characterized in that: The upper end of the support frame (32) is open and is used to accommodate the support block (70) in the adjustable support assembly (7). The support frame (32) is also provided with a notch (320) for the connecting pipe (71) in the adjustable support assembly (7) to pass through.

5. The assembly device of a waste heat boiler according to claim 1, characterized in that: The screw driving assembly (4) comprises a support frame (40), a connecting seat (41), a screw driving machine (42) and a machine base (43); There are two connecting seats (41) and they are respectively installed and fixed on two columns (12) located at the rear side. The support frame (40) is connected to the column (12) by means of the connecting seat (41). The support frame (40) is provided with a vertically through-going and long strip-shaped mounting hole (44). The machine base (43) is located in the support frame (40) and can slide in the support frame (40). The locking bolt can pass through the mounting hole (44) to connect with the machine base (43) and lock the machine base (43) in the support frame (40). The screw driver (42) is installed on the machine base (43).

6. The assembly device of a waste heat boiler according to claim 5, characterized in that: The driving mechanism (5) comprises a servo motor (50), a lead screw (51), a base (52) and a nut seat (53); The servo motor (50) is mounted on the support back plate (13) and the output end of the servo motor (50) is connected to the lead screw (51), the two ends of the lead screw (51) are respectively connected to the base (52) and the support back plate (13), the base (52) is connected to the two columns (12) located on the front side by means of two connecting seats (54), the nut seat (53) is mounted on the upper end of the rear side of the support frame (40) and a nut matching the lead screw (51) is installed in the nut seat (53).

7. The assembly device of a waste heat boiler according to claim 3, characterized in that: It also includes a cooling assembly (6), which includes two groups of piston compression mechanisms and two groups of exhaust mechanisms respectively connected to the two groups of piston compression mechanisms.

8. The assembly device of a waste heat boiler according to claim 7, characterized in that: The piston type compression assembly comprises a piston cylinder (60), a piston rod (61) and an air outlet pipe (62), wherein the piston cylinder (60) is mounted on one of the support tubes (31), one end of the piston rod (61) is slidably connected in the piston cylinder (60), and the other end of the piston rod (61) is mounted on the other support tube (31); The exhaust mechanism comprises a plurality of nozzles (63) and a connecting pipe (64) connecting the plurality of nozzles together, wherein one of the nozzles (63) is connected to the exhaust pipe (62).

9. The assembly device of a waste heat boiler according to claim 5, characterized in that: The support frame (40) is a rectangular tubular structure with openings at both ends.