Fixed device for processing upper crown of water turbine runner

Abstract

This utility model relates to a fixing device for processing the crown of a water turbine runner, including a connecting plate. A circular groove is formed on the rear side of the connecting plate, and a magnet is fixedly connected within the groove. Three movable grooves are formed on the front side of the connecting plate, and movable blocks are movably connected within each groove. An adjusting plate is fixedly connected to the front side of each movable block, and a U-shaped block is fixedly connected to the front side of each adjusting plate. Through the cooperation between the connecting plate, movable plate, laser cutter, magnet, and other structures, the installation method of the device can be selected according to different occasions. One method is to install the device on the ground, with the connecting plate and fixing pipe fitted onto the surface of a support rod. A fixing ring supports the connecting plate, and then the bolt is rotated to the top of the support rod. Another method is to install the device on a steel wall, attracting the magnet on the rear side of the connecting plate to the wall, thus limiting the installation of the connecting plate.

Description

Technical Field

[0001] This utility model relates to the field of machining technology for the crown of a water turbine runner, and in particular to a fixing device for machining the crown of a water turbine runner. Background Technology

[0002] As a core component of the turbine, the machining accuracy of the turbine runner crown directly affects the turbine's operating efficiency and stability. Due to the complex structure, large size (typically several meters in diameter), and heavy weight of the runner crown, and the need for multiple processes such as cutting, grinding, and drilling during machining, extremely high requirements are placed on the stability, adaptability, and adjustment flexibility of the fixing device.

[0003] The existing fixing device for machining the crown of a water turbine runner has the following shortcomings:

[0004] The installation method is limited: most fixing devices can only be fixed to the ground with anchor bolts, which cannot adapt to different processing scenarios (such as wall hanging processing, temporary workstation adjustment, etc.), thus limiting the utilization efficiency of the processing site.

[0005] Limited adjustability: The fixed structure is mostly rigid, making it difficult to flexibly adjust the fixed position and angle according to the size, shape and processing requirements of the upper crown. It also has poor adaptability to non-standard sized upper crown workpieces.

[0006] Insufficient stability: Traditional clamping structures often use single-point fixing or rigid clamping, which can easily lead to loosening of the clamping due to uneven distribution of workpiece weight, resulting in vibration during processing and affecting processing accuracy;

[0007] Cumbersome operation: The disassembly, assembly and position adjustment of processing parts (such as cutters and grinding tools) require multiple bolts to be used in steps, which is time-consuming and makes it difficult to ensure positioning accuracy during the adjustment process, thus reducing processing efficiency;

[0008] Compatibility limitations: It is not compatible with processing tools of different specifications. When changing tools, the fixing structure needs to be readjusted, which increases the time cost of process connection.

[0009] Therefore, developing a fixing device for machining the crown of a turbine runner that is flexible in installation, precise in adjustment, reliable in fixation, and highly adaptable has become a key requirement for improving the machining quality and efficiency of core turbine components. Utility Model Content

[0010] The purpose of this invention is to provide a fixing device for machining the crown of a water turbine runner, so as to solve the problems mentioned in the background art.

[0011] The technical solution of this utility model is a fixing device for machining the crown of a water turbine runner, including a connecting plate. A circular groove is opened on the rear side of the connecting plate, and a magnet is fixedly connected in the circular groove. Three movable grooves are opened on the front side of the connecting plate, and movable blocks are movably connected in each of the movable grooves. An adjusting plate is fixedly connected to the front side of each movable block, and a U-shaped block is fixedly connected to the front side of each adjusting plate. A swing block is hinged to the inner cavity of each U-shaped block, and an electric telescopic rod is fixedly connected to the front side of each swing block. A U-shaped plate is hinged to the outer edge of each electric telescopic rod near the front side, and a limit plate is fixedly connected to the front side of the three U-shaped plates.

[0012] In one embodiment, four connecting pipes are fixedly connected to the outer edge of the connecting plate, and each connecting pipe has an L-shaped threaded rod running through its inner cavity. The end of the L-shaped threaded rod away from the connecting plate is fixedly connected to a movable plate.

[0013] In one embodiment, the outer edge of the L-shaped threaded rod is threaded with two nuts, and the rear side of the movable disc has four sliding grooves.

[0014] In one embodiment, each of the slides is movably connected to a slider, and each slider is fixedly connected to a clamping plate on its rear side. Each clamping plate has an arc-shaped groove on its outer edge, and an elastic ring is fitted in each of the four arc-shaped grooves.

[0015] In one embodiment, a fixing pipe is fixedly connected to both the left and right sides of the connecting plate, and a support rod is provided through the inner cavity of each fixing pipe. A base plate is fixedly connected to the bottom end of each support rod.

[0016] In one embodiment, the top of the support rod has a first threaded hole, and bolts are threaded into the first threaded hole. A fixing ring is fixedly connected to the outer edge of the support rod near the center, and the fixing ring is located at the bottom of the fixing tube.

[0017] In one embodiment, each of the movable blocks has a second threaded hole in its inner cavity, and each of the movable blocks has a threaded connecting rod in its inner cavity. One end of the threaded connecting rod near the center of the connecting plate is inserted into one side of the movable groove, and the other end of the threaded connecting rod away from the center of the connecting plate passes through one side of the movable groove.

[0018] In one embodiment, a laser cutter is provided on the front side of the limiting plate, and a fixing plate is fixedly connected to both the left and right sides of the laser cutter. A third threaded hole is opened in the inner cavity of each fixing plate, and a fourth threaded hole is opened on the front side of the limiting plate near the left and right sides. A limiting threaded rod is threadedly connected in the third threaded hole, and the rear end of the limiting threaded rod is threadedly connected in the fourth threaded hole.

[0019] The beneficial effects provided by this utility model are:

[0020] 1. It can be fixed to the ground by the support rod and the base plate to meet the processing needs of conventional workstations; it can be directly attached to the steel wall or the surface of large steel components by the magnet on the back of the connecting plate to achieve suspended processing, which greatly improves site adaptability and is especially suitable for processing environments with limited space.

[0021] 2. With the cooperation of the movable block and the connecting threaded rod, the position of the adjusting plate can be adjusted radially along the connecting plate; the hinge structure of the swing block and the U-shaped block, and the telescopic function of the electric telescopic rod, can flexibly adjust the angle and front and rear position of the limiting plate, realize the three-dimensional positioning of the processing tool (such as the laser cutter), accurately adapt to the processing needs of different parts of the crown on the rotating wheel, and improve the processing accuracy.

[0022] 3. The four clamping plates on the rear side of the movable disc slide along the slide groove via sliders. With the contraction force of the elastic ring, they can adaptively clamp workpieces of different diameters. The arc-shaped groove design has a higher degree of contact with the workpiece surface, avoiding workpiece deformation caused by excessive local stress. The L-shaped threaded rod and nut can lock the position of the movable disc, further enhancing clamping stability and effectively reducing the impact of machining vibration on accuracy.

[0023] 4. The laser cutter can be quickly assembled and disassembled via a limiting threaded rod and a limiting plate, facilitating tool maintenance or replacement; the plug-in and bolt locking structure of the support rod and fixed tube allows for quick adjustment of the overall height of the device to meet the height requirements of different operators or processing equipment; the connecting threaded rod, nut and other adjusting components all use threaded connections, which are simple to operate and have precise positioning, shortening the debugging time for process switching.

[0024] 5. The modular design of the device makes it not only suitable for machining the crown of the turbine runner, but also compatible with the machining and fixing of other large ring or irregular metal components by changing the clamps of different specifications and adjusting the position of the limit plate, thus improving the versatility and cost-effectiveness of the device. Attached Figure Description

[0025] Figure 1 This is a perspective view of the present utility model;

[0026] Figure 2 This is a rear-view perspective view of the present invention;

[0027] Figure 3 This is a schematic diagram of the movable disc structure of the component of this utility model;

[0028] Figure 4 This is a schematic diagram of the L-shaped threaded rod structure of the component of this utility model;

[0029] Figure 5 This is a schematic diagram of the clamping plate structure of the component of this utility model;

[0030] Figure 6 This is an exploded view of the connecting disc of the component of this utility model.

[0031] In the attached diagram: 1. Connecting plate; 2. Fixing pipe; 3. Support rod; 4. Base plate; 5. Fixing ring; 6. Bolt; 7. L-shaped threaded rod; 8. Movable plate; 9. Magnet; 10. Connecting pipe; 11. Nut; 12. Clamping plate; 13. Elastic ring; 14. Slider; 15. Connecting threaded rod; 16. Movable block; 17. Adjusting plate; 18. U-shaped block; 19. Swinging block; 20. Electric telescopic rod; 21. U-shaped plate; 22. Limiting plate; 23. Laser cutter; 24. Fixing plate; 25. Limiting threaded rod. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0033] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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 component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0034] In one embodiment, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the fixing device for machining the crown of the turbine runner includes a connecting plate 1. A circular groove is opened on the rear side of the connecting plate 1, and a magnet 9 is fixedly connected in the circular groove. Three movable grooves are opened on the front side of the connecting plate 1, and movable blocks 16 are movably connected in each movable groove. An adjusting plate 17 is fixedly connected to the front side of each movable block 16. A U-shaped block 18 is fixedly connected to the front side of each adjusting plate 17. A swing block 19 is hinged to the inner cavity of each U-shaped block 18. An electric telescopic rod 20 is fixedly connected to the front side of each swing block 19. A U-shaped plate 21 is hinged to the outer edge of the electric telescopic rod 20 near the front side. The three U-shaped plates... A limiting plate 22 is fixedly connected to the front side of the plate 21. Four connecting pipes 10 are fixedly connected to the outer edge of the connecting plate 1. Each connecting pipe 10 has an L-shaped threaded rod 7 running through its inner cavity. The end of the L-shaped threaded rod 7 away from the connecting plate 1 is fixedly connected to a movable plate 8. Two nuts 11 are threadedly connected to the outer edge of each L-shaped threaded rod 7. Four sliding grooves are opened on the rear side of the movable plate 8. A slider 14 is movably connected in each sliding groove. A clamping plate 12 is fixedly connected to the rear side of each slider 14. An arc-shaped groove is opened on the outer edge of each clamping plate 12. An elastic ring 13 is fitted in each of the four arc-shaped grooves.

[0035] Fixed tubes 2 are fixedly connected to both sides of the connecting plate 1. Support rods 3 are passed through the inner cavity of the fixed tubes 2. Base plates 4 are fixedly connected to the bottom of the support rods 3. A first threaded hole is opened at the top of the support rod 3. A bolt 6 is threaded into the first threaded hole. A fixed ring 5 is fixedly connected to the outer edge of the support rod 3 near the center. The fixed ring 5 is located at the bottom of the fixed tube 2. A second threaded hole is opened in the inner cavity of the movable block 16. A connecting threaded rod 15 is threaded into the inner cavity of the movable block 16. One end of the connecting threaded rod 15 near the center of the connecting plate 1 is inserted into one side of the movable groove. The other end of the connecting threaded rod 15 away from the center of the connecting plate 1 passes through one side of the movable groove. A laser cutter 23 is provided on the front side of the limiting plate 22. Fixed plates 24 are fixedly connected to both sides of the laser cutter 23. A third threaded hole is opened in the inner cavity of the fixed plates 24. A fourth threaded hole is opened on the front side of the limiting plate 22 near the left and right sides. A limiting threaded rod 25 is threaded into the third threaded hole. The rear end of the limiting threaded rod 25 is threaded into the fourth threaded hole.

[0036] Working Principle: The installation method of the device is selected according to different occasions. Firstly, the device is installed on the ground. The connecting plate 1 cooperates with the fixing pipe 2, and the fixing pipe 2 is fitted onto the surface of the support rod 3. The fixing ring 5 supports the connecting plate 1. Then, the bolt 6 is rotated to the top of the support rod 3. Secondly, the device is installed on a steel wall. The magnet 9 on the back of the connecting plate 1 is attracted to the wall, thus limiting the installation of the connecting plate 1. Then, the material is placed between the four clamping plates 12. Moving the clamping plates 12 causes the slider 14 to move, and the elastic ring 13 is fitted onto the surface of the four clamping plates 12, clamping the material. Then, rotating the connecting threaded rod 15 causes the movable block 16 to move... The movable block 16 moves via the adjusting plate 17, driving the U-shaped block 18, the swing block 19, and the electric telescopic rod 20. The electric telescopic rod 20 moves the laser cutter 23 via the U-shaped plate 21 and the limiting plate 22. When the electric telescopic rod 20 is activated, it controls the horizontal position of the laser cutter 23, allowing the laser cutter 23 to process materials. When the laser cutter 23 needs to be disassembled, the limiting threaded rod 25 is rotated, and the limiting threaded rod 25 is removed from the limiting plate 22 and the fixing plate 24, allowing the laser cutter 23 to be disassembled. The position of the movable plate 8 is moved by rotating the nut 11 and moving the movable plate 8 and the L-shaped threaded rod 7.

[0037] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0038] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fixing device for processing an upper crown of a runner of a hydraulic turbine, characterized in that, The device includes a connecting plate (1), a circular groove is provided on the rear side of the connecting plate (1), a magnet (9) is fixedly connected in the circular groove, three movable grooves are provided on the front side of the connecting plate (1), movable blocks (16) are movably connected in each movable groove, an adjusting plate (17) is fixedly connected to the front side of each movable block (16), a U-shaped block (18) is fixedly connected to the front side of each adjusting plate (17), a swing block (19) is hinged to the inner cavity of each U-shaped block (18), an electric telescopic rod (20) is fixedly connected to the front side of each swing block (19), a U-shaped plate (21) is hinged to the outer edge of each electric telescopic rod (20) near the front side, and a limit plate (22) is fixedly connected to the front side of the three U-shaped plates (21).

2. The fixed device for processing the upper crown of a water turbine runner according to claim 1, characterized in that, Four connecting pipes (10) are fixedly connected to the outer edge of the connecting plate (1). Each connecting pipe (10) has an L-shaped threaded rod (7) running through its inner cavity. The end of the L-shaped threaded rod (7) away from the connecting plate (1) is fixedly connected to a movable plate (8).

3. The fixed device for processing the upper crown of a water turbine runner according to claim 2, characterized in that, The outer edge of the L-shaped threaded rod (7) is threaded with two nuts (11), and the rear side of the movable disc (8) has four sliding grooves.

4. The fixed device for processing the upper crown of a water turbine runner according to claim 3, characterized in that, Each of the slides is movably connected to a slider (14), and each slider (14) is fixedly connected to a clamp (12) on its rear side. Each clamp (12) has an arc-shaped groove on its outer edge, and an elastic ring (13) is fitted in each of the four arc-shaped grooves.

5. The fixing device for machining the upper crown of a water turbine runner according to claim 1, characterized in that, The connecting plate (1) is fixedly connected to the left and right sides with fixed tubes (2), and the inner cavity of the fixed tubes (2) is provided with support rods (3), and the bottom end of the support rods (3) is fixedly connected to the bottom plate (4).

6. The fixing device for machining the upper crown of a water turbine runner according to claim 5, characterized in that, The support rod (3) has a first threaded hole at its top end, and bolts (6) are threaded into the first threaded hole. A fixing ring (5) is fixedly connected to the outer edge of the support rod (3) near the center. The fixing ring (5) is located at the bottom of the fixing tube (2).

7. The fixed device for processing the upper crown of a water turbine runner according to claim 1, characterized in that, Each of the movable blocks (16) has a second threaded hole in its inner cavity, and each of the movable blocks (16) has a threaded connecting rod (15) in its inner cavity. One end of the connecting rod (15) near the center of the connecting plate (1) is inserted into one side of the movable groove, and the other end of the connecting rod (15) away from the center of the connecting plate (1) passes through one side of the movable groove.

8. The fixed device for processing the upper crown of a water turbine runner according to claim 1, characterized in that, The limiting plate (22) is provided with a laser cutter (23) on the front side. The laser cutter (23) is fixedly connected to a fixing plate (24) on both the left and right sides. The fixing plate (24) has a third threaded hole in its inner cavity. The limiting plate (22) has a fourth threaded hole near the left and right sides on the front side. The third threaded hole is threaded with a limiting threaded rod (25). The rear end of the limiting threaded rod (25) is threaded into the fourth threaded hole.

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