Welding device for inner cylinder of reaction kettle
By using a support frame and a welding device driven by a servo motor, the problems of inefficiency and unstable quality in traditional manual welding have been solved, enabling efficient and stable welding of the inner cylinder of the reactor and adapting to the welding needs of cylinders of different thicknesses.
Patent Information
- Application Number
- CN202520136461.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Traditional manual welding of the inner cylinder of a reactor is difficult to maintain in terms of efficiency and quality, and relies heavily on the welder's experience, resulting in poor welding efficiency and quality.
The device consists of a support frame, a welding carriage, a servo motor, and a threaded rod. The servo motor drives the threaded rod to move the guide block and the welding gun, enabling simultaneous welding on the inner and outer sides. This reduces manual operation and improves stability and flexibility.
It achieves stable welding without manual welding, improves welding efficiency and quality, adapts to the welding needs of cylinders of different thicknesses, and enhances the stability and flexibility of the device.
Smart Images

Figure CN223762520U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of reactor inner cylinder processing, and in particular to a reactor inner cylinder welding device. Background Technology
[0002] In many industries such as chemical, pharmaceutical, and food processing, the reactor is a core piece of equipment that undertakes key functions such as material mixing, reaction, heating, and cooling. The performance and stability of the reactor are directly related to the quality of the products and production efficiency. As a major component of the reactor, the inner cylinder has a crucial impact on the overall performance of the reactor due to its structural strength, sealing, and corrosion resistance.
[0003] Traditionally, the welding of the inner cylinder of a reactor mainly relies on manual welding, which involves manual welding on both the inner and outer sides of the inner cylinder simultaneously. However, manual welding heavily depends on the individual welder's professional skills and experience. Even experienced welders, after working for a long time, find it difficult to maintain a stable welding state due to the depletion of energy and physical strength, resulting in reduced welding efficiency and quality. To address this issue, a reactor inner cylinder welding device is proposed. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a welding device for the inner cylinder of a reaction vessel, which aims to improve the problem in the prior art that "manual welding requires a lot of physical strength and energy, makes it difficult to maintain a stable welding state, and reduces welding efficiency and quality".
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a welding device for the inner cylinder of a reaction vessel, comprising a support frame, a cylinder body at the top of the support frame, a welding assembly on the right side of the cylinder body, the welding assembly comprising a welding carriage, a counterweight fixedly mounted at the top of the welding carriage, a support block fixedly connected to the left side of the top of the welding carriage near the counterweight, a motor frame fixedly connected to the upper right side of the support block, a servo motor fixedly mounted on the left inner wall of the motor frame, a threaded screw fixedly connected to the right side of the output shaft of the servo motor, two sets of positioning blocks fixedly connected to the top of the support block, a bidirectional threaded rod rotatably connected through the rear surface of the positioning block, a slider threadedly connected to the outer wall of the bidirectional threaded rod, and a slide rail fixedly connected to the top of the slider.
[0006] As a further description of the above technical solution:
[0007] A stabilizing component is provided between the support frame and the welding vehicle. The stabilizing component includes a fixing block, which is fixedly connected to the right side of the front surface of the support frame.
[0008] As a further description of the above technical solution:
[0009] A guide block is slidably connected to the top of the slide rail, and a welding gun is fixedly installed on the rear surface of the guide block.
[0010] As a further description of the above technical solution:
[0011] A guide rod is fixedly connected to the right side of the guide block one, and a guide block two is threadedly connected to the outer wall of the threaded screw.
[0012] As a further description of the above technical solution:
[0013] The motor frame is L-shaped, the threaded screw passes through and is rotatably connected to the right side of the motor frame, the slider is slidably connected to the top of the support block, the guide block 2 slides on the top of the slide rail, and the guide rod is slidably connected to the left side of the guide block 2.
[0014] As a further description of the above technical solution:
[0015] The fixing block has a slot on its right side, and the welding vehicle has a connecting block fixedly connected to its left side.
[0016] As a further description of the above technical solution:
[0017] The connecting block is adapted to the slot, the top of the fixing block has a through hole one, and the top of the connecting block has a through hole two.
[0018] As a further description of the above technical solution:
[0019] The top of the fixed block is movably inserted into a limiting block. The limiting block, through hole one, and through hole two are of compatible size. The limiting block is inserted into the inner wall of through hole one and through hole two, and the connecting block is inserted into the inner wall of the slot.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, by setting up a welding cart, support block and counterweight block for support, and by using a servo motor to drive the threaded rod to rotate to guide the guide block to push the guide rod and two sets of inner and outer welding guns to move simultaneously, the inner and outer sides of the inner cylinder can be welded at the same time. No manual welding is required, which reduces physical labor consumption and makes the welding stable. At the same time, the position of the welding gun can be adjusted by rotating the bidirectional threaded rod to adapt to cylinders of different thicknesses, which improves flexibility, processing efficiency and quality.
[0022] 2. In this utility model, after the connecting block is inserted into the right side of the fixing block by moving the welding cart, the limiting block is quickly inserted through the fixing block and the connecting block, thereby quickly limiting the connecting block to the right side of the fixing block, thus fixing the welding cart, preventing the welding cart from moving, increasing the stability of the welding cart, and improving the welding quality. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;
[0024] Figure 2 This is a right-side view of the three-dimensional structure of the overall device in this utility model;
[0025] Figure 3 This is a three-dimensional structural breakdown diagram of the connecting block, fixing block, and limiting block in this utility model;
[0026] Figure 4 This is a three-dimensional structural diagram of the servo motor, bidirectional threaded rod, and guide rod in this utility model.
[0027] Legend:
[0028] 1. Cylinder body; 2. Support frame; 3. Welding carriage; 4. Counterweight; 21. Fixing block; 22. Limiting block; 23. Connecting block; 31. Support block; 32. Welding gun; 33. Guide block one; 34. Slide rail; 35. Guide block two; 36. Threaded screw; 37. Motor frame; 38. Positioning block; 39. Guide rod; 310. Bidirectional threaded rod; 311. Servo motor; 312. Slider. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a reactor inner cylinder welding device, including a support frame 2 for supporting the inner cylinder. The support frame 2 is a prior art device used to roll and support the inner cylinder. A cylinder body 1 is provided at the top of the support frame 2. The cylinder body 1 is the main body of the reactor inner cylinder. A welding assembly for welding the inner cylinder is provided on the right side of the cylinder body 1. The welding assembly includes a welding cart 3 for providing support and movement. The bottom end of the welding cart 3 is provided with rollers for easy movement to different areas. A counterweight 4 is fixedly installed at the top of the welding cart 3 to increase the weight and stability of the welding cart 3. A support block 31 is fixedly connected to the left side of the top of the welding cart 3 near the counterweight 4. A motor frame 37 for supporting and installing a servo motor 311 is fixedly connected to the upper right side of the support block 31. A servo motor 311 for driving the threaded screw 36 to rotate forward or backward is fixedly installed on the left inner wall of the motor frame 37.
[0031] Furthermore, the servo motor 311 is existing technology and can be implemented by those skilled in the art. Since it is existing technology, it will not be described in detail in this case. The right side of the output shaft of the servo motor 311 is fixedly connected to a threaded screw 36 that is threadedly connected to the guide block 35 and drives the guide block 35 to move. The top of the support block 31 is fixedly connected to a positioning block 38 that provides support, and there are two sets of such blocks. The rear surface of the positioning block 38 is rotatably connected to a bidirectional threaded rod 310 that is threadedly connected to the two sets of sliders 312 and drives the two sets of sliders 312 to move simultaneously in opposite directions. The outer wall of the bidirectional threaded rod 310 is threadedly connected to a slider 312 that supports the slide rail 34. The top of the slider 312 is fixedly connected to the slide rail 34 that provides support.
[0032] Reference Figure 1 , Figure 2 and Figure 3 A stabilizing component is provided between the support frame 2 and the welding vehicle 3 to increase the stability of the welding vehicle 3. The stabilizing component includes a fixing block 21 that provides a limit and is fixedly connected to the right side of the front surface of the support frame 2.
[0033] Reference Figure 1 , Figure 2 and Figure 4 The top of the slide rail 34 is slidably connected to a guide block 33 that supports the welding gun 32. The welding gun 32 for welding is fixedly installed on the rear surface of the guide block 33. The right side of the guide block 33 is fixedly connected to a guide rod 39 that drives the guide block 33 to move. The outer wall of the threaded screw 36 is threadedly connected to a guide block 35 that pushes the guide rod 39 to move. The motor frame 37 is set in an L shape. The L shape of the motor frame 37 can be used to install on the support block 31 and can also support the servo motor 311. The threaded screw 36 passes through and is rotatably connected to the right side of the motor frame 37. The motor frame 37 supports the threaded screw 36 and the servo motor 311.
[0034] Furthermore, slider 312 is slidably connected to the top of support block 31. Slider 312 slides back and forth. Guide block 2 35 slides on the top of slide rail 34. Guide block 2 35 can be supported by two sets of slide rails 34 to prevent it from rotating. Guide rod 39 is slidably connected to the left side of guide block 2 35. Guide rod 39 slides back and forth on the left side of guide block 2 35. Guide block 2 35 is set in a T shape and can be slidably supported on two sets of slide rails 34. Guide block 1 33, welding gun 32, slider 312, slide rail 34 and guide rod 39 are all set in two sets. The two sets of guide block 1 33, welding gun 32, slider 312, slide rail 34 and guide rod 39 are symmetrically arranged with the center line of support block 31 as the axis of symmetry.
[0035] Reference Figure 1 , Figure 2 and Figure 3 The right side of the fixing block 21 is provided with a slot for the connecting block 23 to be movably inserted. The left side of the welding vehicle 3 is fixedly connected to the connecting block 23, which is adapted to the slot. The top of the fixing block 21 is provided with a through hole 1 for inserting the limiting block 22. The top of the connecting block 23 is provided with a through hole 22 for inserting the limiting block 22. The top of the fixing block 21 is movably inserted with a limiting block 22, which can simultaneously limit the fixing block 21 and the connecting block 23 after being inserted into both through holes 1 and 2. The size of the limiting block 22, through holes 1 and 2 is adapted to each other. The limiting block 22 is inserted into the inner wall of through holes 1 and 2, and the connecting block 23 is inserted into the inner wall of the slot. After the connecting block 23 is inserted into the slot, the limiting block 22 is inserted through through holes 1 and 2 to quickly limit and fix the connecting block 23 and the fixing block 21.
[0036] Working principle: When in use, first connect the power supply and switch of the electrical equipment in this device, then move it to a suitable position by the rollers at the bottom of the welding carriage 3, insert the connecting block 23 into the slot on the right side of the fixing block 21, and then pass the limiting block 22 through the through hole one at the top of the fixing block 21 and the through hole two at the top of the connecting block 23 in sequence, so that the welding carriage 3 is stably connected to the support frame 2, increasing the stability of the welding carriage 3 during the welding process.
[0037] At this time, the welding device is started, causing the servo motor 311 to start running. Its output shaft drives the threaded screw 36 to rotate. Since the guide block 35 is threadedly connected to the threaded screw 36, and the guide block 35 can only slide along the slide rail 34 under the support of the two sets of slide rails 34, the rotation of the threaded screw 36 pushes the guide block 35 to move to the left at the top of the slide rail 34. At the same time, the guide rod 39 on the left side of the guide block 35 moves to the left with it. The guide rod 39 is fixedly connected to the guide block 33, which in turn drives the guide block 33 to slide to the left at the top of the slide rail 34. This in turn drives the two sets of welding guns 32 to move to the left to perform welding stably. There is no need for manual welding operation, which reduces physical labor consumption, makes welding stable, and improves welding efficiency and quality.
[0038] When the thickness of the cylinder 1 is different, the bidirectional threaded rod 310 can be rotated. Since it is threadedly connected to the two sets of sliders 312 and the sliders 312 are slidably connected to the top of the support block 31, the rotation of the bidirectional threaded rod 310 drives the two sets of sliders 312 to move in opposite directions at the same time, thereby adjusting the distance between the two sets of slide rails 34. By adjusting the distance between the two sets of slide rails 34, the distance between the two sets of welding guns 32 can be adjusted at the same time, and the guide rod 39 slides on the left side of the guide block 35. This can adapt to the welding requirements of reactor inner cylinders of different sizes and complete the all-round, high-quality welding work of reactor inner cylinders.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A reactor inner cylinder welding device comprising a support frame (2), characterized in that: The top end of the support frame (2) is provided with a cylinder (1), the right side of the cylinder (1) is provided with a welding assembly, the welding assembly comprises a welding car (3), the top end of the welding car (3) is fixedly installed with a counterweight (4), the top end of the welding car (3) is fixedly connected with a support block (31) on the left side close to the counterweight (4), the upper right side of the support block (31) is fixedly connected with a motor frame (37), the left side inner wall of the motor frame (37) is fixedly installed with a servo motor (311), the output shaft right side of the servo motor (311) is fixedly connected with a threaded lead screw (36), the top end of the support block (31) is fixedly connected with a positioning block (38) and is provided with two groups, the rear surface of the positioning block (38) is penetrated and rotationally connected with a bidirectional threaded rod (310), the outer wall of the bidirectional threaded rod (310) is threadedly connected with a sliding block (312), the top end of the sliding block (312) is fixedly connected with a sliding rail (34).
2. The apparatus according to claim 1, wherein: The support frame (2) and the welding car (3) are provided with a stabilizing assembly, the stabilizing assembly comprises a fixed block (21), the fixed block (21) is fixedly connected to the front surface right portion of the support frame (2).
3. The apparatus according to claim 1, wherein: The top end of the sliding rail (34) is slidingly connected with a guide block one (33), the rear surface of the guide block one (33) is fixedly installed with a welding gun (32).
4. The apparatus according to claim 3, wherein: The right side of the guide block one (33) is fixedly connected with a guide rod (39), the outer wall of the threaded lead screw (36) is threadedly connected with a guide block two (35).
5. The apparatus of claim 4, wherein: The motor frame (37) is provided as an L shape, the threaded lead screw (36) is penetratingly and rotationally connected to the right side of the motor frame (37), the sliding block (312) is slidingly connected to the top end of the support block (31), the guide block two (35) slides on the top end of the sliding rail (34), the guide rod (39) is slidingly connected to the left side of the guide block two (35).
6. The apparatus of claim 2, wherein: The right side of the fixed block (21) is provided with a clamping groove, the left side of the welding car (3) is fixedly connected with a connecting block (23).
7. The apparatus of claim 6, wherein: The connecting block (23) is matched with the clamping groove, the top end of the fixed block (21) is provided with a through hole one, the top end of the connecting block (23) is provided with a through hole two.
8. The apparatus of claim 7, wherein: The top end of the fixed block (21) movably plugs in a limiting block (22), the limiting block (22), the through hole one and the through hole two are matched in size, the limiting block (22) is plugged in the inner wall of the through hole one and the through hole two, and the connecting block (23) is plugged in the inner wall of the clamping groove.