A flux recovery and delivery device for submerged arc welding

Abstract

The application discloses a flux recovery and conveying device for submerged-arc welding and belongs to the technical field of flux recovery, which comprises an output head, a position slot is arranged in the output head, and a polishing body is arranged in the output head, the polishing body comprises first and second polishing groups, each group is provided with first and second polishing wheels, a plurality of wheel rotating shafts are collinear and symmetrically distributed, and the directions of rotation of the two wheels in the same group are opposite; the end wall and the side wall of the output head are respectively provided with corresponding polishing wheels, the second polishing wheel driving shaft penetrates through the first polishing wheel and is connected with a bearing, a center gear disc is arranged at the shaft end, planetary gears are arranged between the side wall gear ring of the first polishing wheel and the center gear disc, the two second polishing wheels are connected through a connecting shaft which is rotatably inserted through a male head and a female head, and the reverse multi-wheel and the flexible brush are designed to guarantee precision and avoid damage to the base material; negative pressure recovery and a baffle strip improve the flux recovery rate, reduce the cost, and reduce manual intervention; meanwhile, waste materials are collected in time, pollution is prevented, and the operation area is kept clean.

Description

Technical Field

[0001] This invention relates to the field of flux recovery technology, and more specifically to a flux recovery and conveying device for submerged arc welding. Background Technology

[0002] In submerged arc welding (SAW) operations, weld surface treatment and flux recovery are key aspects affecting welding quality, operational efficiency, and environmental friendliness. Traditional SAW equipment typically separates weld treatment and flux recovery into two independent processes: first, the welding operation is completed by the welding equipment; then, impurities such as oxide scale and slag on the weld surface are cleaned manually or by a separate grinding device; finally, the scattered flux is collected using a simple recycling device.

[0003] This separate operation mode has obvious drawbacks: on the one hand, the process of splitting the process leads to a lengthy operation process and many manual intervention links, which not only increases labor costs, but also easily affects the overall welding efficiency due to untimely process connection; on the other hand, simple recycling devices can usually only collect a part of the scattered flux, and a large amount of flux is easily spread into the working environment with the grinding debris, which not only wastes materials, but also pollutes the working environment.

[0004] Therefore, the present invention provides a flux recovery and conveying device to solve the above-mentioned problems. Summary of the Invention

[0005] To address the aforementioned technical shortcomings, the present invention aims to provide a flux recovery and conveying device for submerged arc welding, comprising an output head with symmetrically rotating counter-rotating brush grinding wheels, combined with recovery ports on both sides, a negative pressure system, and baffles, to achieve integrated weld treatment and flux recovery, thereby shortening the cycle, improving accuracy, reducing costs, and minimizing pollution.

[0006] The output head has a clearance groove inside, and a grinding body is installed inside the clearance groove. When the output head moves along the weld, the grinding body contacts the weld and generates friction on the weld surface.

[0007] The output head has a recovery port on both sides of its moving direction, and the recovery port is connected to an external ventilation device.

[0008] Preferably, the polishing body includes a first polishing group and a second polishing group, each polishing group including a first polishing wheel and a second polishing wheel, the rotation axes of the plurality of first polishing wheels and the plurality of second polishing wheels are on the same straight line, the first polishing wheels and the second polishing wheels within the first polishing group and the second polishing group are symmetrically distributed, and the first polishing wheels and the second polishing wheels within the same polishing group rotate in opposite directions.

[0009] Preferably, the output head includes two end walls and two side walls, with two first grinding wheels rotatably mounted on the end walls and two second grinding wheels rotatably mounted between the two first grinding wheels.

[0010] Preferably, a drive shaft is fixed on the second grinding wheel, the drive shaft passing through the center of the first grinding wheel and rotatably mounted on the end wall.

[0011] Preferably, the first grinding wheel is rotatably mounted on the inner side of the end wall, the first grinding wheel is sleeved on the outside of the drive shaft, and a bearing is connected between the first grinding wheel and the drive shaft.

[0012] Preferably, a central gear disk is fixed at one end of the drive shaft extending into the end wall, a gear ring is fixed on the side wall of the first grinding wheel, and a planetary gear is rotatably mounted between the gear ring and the first central gear disk.

[0013] Preferably, a connecting shaft is connected between the two second grinding wheels. The connecting shaft includes a male head and a female head, which are respectively fixed on the two second grinding wheels and are rotatably connected.

[0014] Preferably, the output head has an internal channel with two recycling ports at both ends. A pipe is fixed to the output head, with one end of the pipe connected to the channel and the other end connected to an external exhaust fan.

[0015] Preferably, baffles are fixed on the two side walls of the output head, and the baffles are flush with the lowest ends of the first and second grinding wheels.

[0016] Preferably, both the first and second grinding wheels are provided with brushes on their surfaces.

[0017] The beneficial effects of this invention are as follows: The device integrates weld surface treatment and flux recovery into the same process, eliminating the need to separate the work process and significantly shortening the overall welding cycle. The multi-wheel reverse rotation and symmetrical distribution design, combined with flexible brush grinding, can ensure thorough removal of impurities from the weld surface while avoiding damage to the base material, significantly improving the surface finish and processing accuracy of the weld, and adapting to the processing needs of complex-shaped welds. Through the synergistic effect of the negative pressure recovery system and the baffle, the flux recovery rate is greatly improved, material waste is reduced, and the consumable cost of welding operations is lowered. At the same time, the integrated design reduces manual intervention and lowers manpower input. The negative pressure recovery system can collect flux and grinding debris in a timely manner, preventing waste from spreading into the working environment and reducing air pollution; the baffles further prevent waste from scattering and ensure the cleanliness of the working area. Attached Figure Description Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 for Figure 1 A cross-sectional view along the AA direction.

[0019] Figure 3 for Figure 1 A cross-sectional view along the BB direction.

[0020] Figure 4 for Figure 1 Enlarged view of point C in the image.

[0021] Figure 5 for Figure 1 Enlarged view of point D in the image.

[0022] Figure 6 This is a connection diagram of the output head and pipes.

[0023] Figure 7 This invention is for the purpose of this invention.

[0024] In the diagram: 1. Output head, 2. First grinding wheel, 3. Second grinding wheel, 4. Central gear, 5. Planetary gear, 6. Gear ring, 7. Bearing, 8. Connecting shaft, 81. Female head, 82. Male head, 9. Drive shaft, 10. Pipe, 11. Channel, 12. Stop bar. Detailed Implementation

[0025] The present invention is illustrated below with specific embodiments, but these are not intended to limit the invention.

[0026] Example 1 like Figures 1-7 As shown, this embodiment provides a flux recovery and conveying device for submerged arc welding, which can simultaneously realize weld surface treatment and flux recovery. The output head 1 has a clearance groove inside, and a grinding body is installed in the groove. When the output head 1 moves along the weld, the grinding body moves with the output head 1 and comes into contact with the weld surface. The basic treatment of the weld surface is completed through the relative friction between the two. On both sides of the moving direction of output head 1, there are recovery ports, which are connected to external ventilation equipment through dedicated pipelines. After the ventilation equipment is started, it can create a negative pressure environment at the recovery ports, which can promptly suck in the flux scattered during welding and the debris generated during grinding, thus preventing the accumulation or spread of waste. This device removes impurities such as oxide scale and slag from the weld surface through the direct action of the grinding body on the weld, improving the surface smoothness and overall quality of the weld. At the same time, the recovery ports on both sides, together with the exhaust equipment, can efficiently recover the flux, reduce material waste, and reduce the pollution of the working environment by waste, thus balancing economy and environmental protection. Example 2 like Figures 1-7 As shown, based on Embodiment 1, this embodiment optimizes the structure of the grinding body, the layout of the output head 1, and the power transmission system to further improve the grinding effect and structural compactness. The grinding body consists of a first grinding group and a second grinding group, each of which includes a first grinding wheel 2 and a second grinding wheel 3. The rotation axes of the multiple grinding wheels are kept collinear, and the first and second grinding groups are symmetrically distributed. The two grinding wheels in the same grinding group rotate in opposite directions, which can apply friction to the weld from different angles. The output head 1 consists of two end walls and two side walls. Two first grinding wheels 2 are rotatably mounted on the end walls via bearings 7, and two second grinding wheels 3 are located between the two first grinding wheels 2, forming a continuous and gapless grinding area to ensure that the output head 1 can fully cover the weld when it moves. A drive shaft 9 is fixed to the second grinding wheel 3. The drive shaft 9 passes through the center of the first grinding wheel 2 and is rotatably mounted on the end wall. The first grinding wheel 2 is sleeved on the outside of the drive shaft 9, and the two are connected by a bearing 7 to achieve independent rotation and avoid mutual interference. A central gear disk 4 is fixed to one end of the drive shaft 9 that extends into the end wall. A gear ring 6 is fixed to the side wall of the first grinding wheel 2, and a planetary gear 5 is rotatably mounted between the gear ring 6 and the central gear disk 4. When the drive shaft 9 rotates, the central gear disk 4 drives the gear ring 6 to rotate through the planetary gear 5, thereby driving the first grinding wheel 2 to rotate in the opposite direction to the second grinding wheel 3. The multi-wheel coordinated counter-rotation design enhances the uniformity and thoroughness of grinding, avoiding insufficient local treatment caused by grinding in one direction; the compact shaft system and gear transmission structure significantly reduces the size of the device while ensuring the stability of the grinding wheel rotation, extending the service life of the equipment, and is suitable for surface treatment of complex shaped welds. Example 3 like Figures 1-7 As shown, based on Embodiment 1 and Embodiment 2, this embodiment further optimizes the connection stability, recycling efficiency and polishing precision of the device, and improves the overall function. The two second grinding wheels 3 are connected by a connecting shaft 8, which consists of a male head 82 and a female head 81. The male head 82 and the female head 81 are fixed on the two second grinding wheels 3 respectively, using a rotating plug-in connection method. This connection structure can ensure that the two second grinding wheels 3 rotate synchronously, while also allowing a certain angle of relative rotation, to adapt to the slight deformation or undulation of the weld surface. The output head 1 has an internal channel 11, with both ends of the channel 11 connected to the recovery ports on both sides. A pipe 10 is fixed on the output head 1, with one end connected to the channel 11 and the other end connected to an external exhaust fan, forming a complete negative pressure recovery path. When the exhaust fan is working, a negative pressure is generated in the channel 11, which quickly sucks in the flux and waste collected at the recovery port, and then transports it to the external collection equipment through the pipe 10, avoiding blockages during the recovery process. Both side walls of the output head 1 are fixed with baffles 12, the lower ends of which are flush with the bottom ends of the first grinding wheel 2 and the second grinding wheel 3. When the device moves, the baffles 12 can prevent flux and waste from falling to both sides, confining them within the working area of ​​the grinding wheels, facilitating efficient collection at the recycling port and reducing waste loss. Both the first grinding wheel 2 and the second grinding wheel 3 are equipped with brushes on their surfaces, which are made of flexible wear-resistant material. When the grinding wheels rotate, the brushes come into contact with the weld surface, which can remove fine oxide scale, welding slag and other impurities, while avoiding damage to the weld base material caused by rigid grinding. At the same time, it improves the surface finish of the weld and meets the requirements of high-precision welding operations.

[0027] Working principle: The flux recovery and conveying device for submerged arc welding uses output head 1 as its core carrier. Through structural coordination, it achieves simultaneous operation of weld treatment and flux recovery. The specific workflow is as follows: The grinding body in the clearance groove inside the output head 1 moves along the weld seam with the output head 1, directly contacting the weld seam surface and generating relative friction to complete the basic impurity removal. In the optimized structure (Examples 2 and 3), the grinding body consists of a symmetrically distributed first grinding group and a second grinding group. Each group includes a first grinding wheel 2 and a second grinding wheel 3 that rotate in opposite directions through a drive shaft 9 and a gear transmission system: when the drive shaft 9 drives the second grinding wheel 3 to rotate, its central gear disk 4 extending into the end wall drives the gear ring 6 on the side wall of the first grinding wheel 2 to rotate through a planetary gear 5, so that the two grinding wheels in the same grinding group rotate in opposite directions. The multi-wheel reverse rotation, combined with the movement of the output head 1, forms a continuous and multi-angle grinding area, which can perform full-coverage and thorough fine treatment of the weld seam surface; at the same time, the flexible brush on the surface of the grinding wheel can remove fine impurities while avoiding damage to the weld base material. The recovery ports on both sides of the output head 1 are connected to an external ventilation system via dedicated pipelines. Once the ventilation system is activated, a negative pressure environment is created inside the channel 11 of the output head 1. Flux scattered during welding and debris generated during grinding are confined within the working area of ​​the grinding wheel by the baffle 12 (flush with the lower end of the grinding wheel). Then, under the suction of the negative pressure, they enter the channel 11 through the recovery ports and are transported to the external collection equipment via pipeline 10, completing the efficient recovery and centralized treatment of the flux. Furthermore, the rotating plug-in connecting shaft 8 between the two second grinding wheels 3 can adapt to minor deformations of the weld surface, ensuring the stability of the grinding and recovery actions during device movement.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention without departing from the spirit and scope of the present invention. Any modifications or partial substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A flux recovery and conveying device for submerged arc welding, characterized in that, include: Output head (1), the output head (1) is provided with a relief groove inside, and a grinding body is installed inside the relief groove. When the output head (1) moves along the weld, the grinding body contacts the weld and rubs the weld surface. The output head (1) has a recovery port on both sides of its moving direction, and the recovery port is connected to an external ventilation device. The grinding body includes a first grinding group and a second grinding group. Each grinding group includes a first grinding wheel (2) and a second grinding wheel (3). The rotation axes of multiple first grinding wheels (2) and multiple second grinding wheels (3) are on the same straight line. The first grinding wheels (2) and the second grinding wheels (3) inside the first grinding group and the second grinding group are symmetrically distributed, and the first grinding wheels (2) and the second grinding wheels (3) inside the same grinding group rotate in opposite directions. A connecting shaft (8) is connected between the two second grinding wheels (3). The connecting shaft (8) includes a male head (82) and a female head (81). The male head (82) and the female head (81) are respectively fixed on the two second grinding wheels (3). The male head (82) and the female head (81) are rotatably inserted into each other.

2. The flux recovery and conveying device for submerged arc welding according to claim 1, characterized in that, The output head (1) includes two end walls and two side walls. Two first grinding wheels (2) are rotatably mounted on the end walls, and two second grinding wheels (3) are rotatably mounted between the two first grinding wheels (2).

3. The flux recovery and conveying device for submerged arc welding according to claim 2, characterized in that, A drive shaft (9) is fixed on the second grinding wheel (3). The drive shaft (9) passes through the center of the first grinding wheel (2) and is rotatably mounted on the end wall.

4. The flux recovery and conveying device for submerged arc welding according to claim 3, characterized in that, The first grinding wheel (2) is rotatably mounted on the inner side of the end wall. The first grinding wheel (2) is sleeved on the outside of the drive shaft (9). A bearing (7) is connected between the first grinding wheel (2) and the drive shaft (9).

5. A flux recovery and conveying device for submerged arc welding according to claim 4, characterized in that, The drive shaft (9) extends to one end of the end wall and is fixed with a central gear disk (4). A gear ring (6) is fixed on the side wall of the first grinding wheel (2). A planetary gear (5) is rotatably installed between the gear ring (6) and the central gear disk (4).

6. The flux recovery and conveying device for submerged arc welding according to claim 1, characterized in that, The output head (1) has a channel (11) inside, and the two ends of the channel (11) are connected to the two sides of the recycling port. The output head (1) is fixed with a pipe (10), one end of the pipe (10) is connected to the channel (11) and the other end is connected to the external exhaust fan.

7. The flux recovery and conveying device for submerged arc welding according to claim 1, characterized in that, The output head (1) has two side walls with baffles (12) fixed on them. The baffles (12) are flush with the bottom of the first grinding wheel (2) and the second grinding wheel (3).

8. A flux recovery and conveying device for submerged arc welding according to claim 1, characterized in that, Both the first grinding wheel (2) and the second grinding wheel (3) are provided with brushes.

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