Special tool for overhauling high and medium pressure main regulating valve
By introducing a motor-driven rotary plate and worm gear meshing structure into the special tooling for high and medium-pressure main valve maintenance, the problem of equipment fixing and height adjustment of valves of different diameters is solved, and the practicality and adaptability of the equipment are improved.
Patent Information
- Application Number
- CN202421008258.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The traditional high-sea pressure main valve maintenance special tooling has a single structure during the fixing and adjustment process, which is inconvenient to adapt to the fixing and unadjustable height of the steam door and equipment of different diameters, resulting in troublesome and time-consuming operation.
A special tool for high-voltage main valve maintenance including workbench, fixed seat, slider, clamp, motor and worm is designed. The motor drives the rotary plate and worm gear meshing structure to realize the movement of the slider and worm gear. The ply plate fixes the valve and adjusts the table height through the motor to suit the operation of different heights.
It realizes stable fixation of steam valves of different diameters and flexible adjustment of equipment height, improving the practicality and operation convenience of equipment.
Smart Images
Figure CN222200479U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of valve repair auxiliary equipment, in particular to a special tooling for repairing high and medium pressure main regulating valves. Background Art
[0002] A steam turbine is a thermal mechanical device that uses the kinetic energy of steam, gas or other working fluids to drive the rotor, thereby generating mechanical work. In a steam turbine, the high-pressure part usually plays an important role in generating power. High- and medium-pressure main regulating valves refer to valves or regulating devices used to control the inlet and outlet of the high-pressure part. These valves or devices are usually used to adjust the flow of steam or gas to control the output power and performance of the steam turbine. During the maintenance and overhaul of the high- and medium-pressure main regulating valves, special tools and equipment are required to overhaul, adjust and maintain the various components of the steam turbine. By using special overhaul tooling, the safety, reliability and performance of the steam turbine can be ensured.
[0003] Traditional special tooling for the maintenance of high and medium pressure main regulating steam valves is made by placing the high and medium pressure main regulating steam valves on a workbench and then fixing them. The fixing devices include clamps, screws, calipers, etc., which can be adjusted and fixed according to the design and size of the valves to ensure that the valves will not move or shake during the maintenance process, and to ensure that the valves will not cause maintenance errors due to vibration or movement during the maintenance process.
[0004] The traditional special tooling for repairing high and medium pressure main regulating steam valves does not take into account the problem that it is troublesome, time-consuming and labor-intensive to manually adjust the clamps, screws and calipers. Therefore, a special tooling for repairing high and medium pressure main regulating steam valves is proposed to solve the above problems. Utility Model Content
[0005] In order to make up for the above shortcomings, the utility model provides a special tool for repairing high and medium pressure main regulating steam valves, aiming to improve the problem that some special tooling for repairing high and medium pressure main regulating steam valves in the prior art has a single structure and is not convenient for fixing high and medium pressure main regulating steam valves of different diameters.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A special tool for repairing a high-medium pressure main regulating steam valve comprises a workbench, the upper surface of the workbench is fixedly connected to a fixing seat, the upper surface of the fixing seat is fixedly connected to a slide plate, a slider is slidably connected inside the slide plate, a clamp is fixedly connected to the upper surface of the slider, a motor 1 is fixedly connected inside the fixing seat, a rotating plate is fixedly connected to the output end of the motor 1, a connecting plate is rotatably connected to the side wall of the rotating plate, one side of the connecting plate is rotatably connected to the side wall of the slider, and a limiting component is arranged inside the slide plate;
[0008] As a further description of the above technical solution:
[0009] The limiting assembly includes a stopper, and the side wall of the stopper is fixedly connected to the inside of the slide plate;
[0010] As a further description of the above technical solution:
[0011] A tool box is fixedly connected to the upper surface of the workbench, and a connecting column is fixedly connected to the inside of the workbench;
[0012] As a further description of the above technical solution:
[0013] The side wall of the workbench is slidably connected with legs, and a bottom plate is fixedly connected between the legs;
[0014] As a further description of the above technical solution:
[0015] A rotating rod is rotatably connected inside the bottom plate, and a second motor is fixedly connected to the lower surface of the bottom plate;
[0016] As a further description of the above technical solution:
[0017] A worm is fixedly connected to the second output end of the motor, a worm wheel is fixedly connected to the side wall of the rotating rod, and the worm is meshed with the worm wheel;
[0018] As a further description of the above technical solution:
[0019] The side wall of the rotating rod is rotatably connected to a support seat, and the side wall of the support seat is fixedly connected to the upper surface of the bottom plate;
[0020] As a further description of the above technical solution:
[0021] The side wall of the rotating rod is fixedly connected with a connecting plate, the side wall of the connecting column is slidably connected inside the connecting plate, and the side wall of the connecting plate is slidably connected inside the supporting leg.
[0022] The utility model has the following beneficial effects:
[0023] 1. In the utility model, the high and medium pressure main regulating valves are placed between the tool boxes, and the rotating plate is driven to rotate by starting the motor, thereby driving the connecting plate to rotate. When the connecting plate rotates, it drives the slider to slide inside the slide plate, and the high and medium pressure main regulating valves are clamped and fixed by the clamping plate, which solves the problem that some special tooling for the maintenance of high and medium pressure main regulating valves has a single structure and is not convenient for fixing high and medium pressure main regulating valves of different diameters. The practicality of the equipment is improved through the above structure.
[0024] 2. In the utility model, the worm is driven to rotate by starting motor 2, and the meshing action of the worm and the worm wheel drives the rotating rod to rotate, thereby rotating the connecting plate and lifting the workbench upward, thereby changing the height of the equipment, solving the problem that the height of some special tooling equipment for repairing high and medium pressure main regulating valves is fixed and cannot be adjusted. The flexibility of the equipment is improved through the above solution. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 A three-dimensional schematic diagram of a special tooling for repairing a high- and medium-pressure main regulating steam valve proposed by the utility model;
[0026] Figure 2 This is a structural schematic diagram of a fixing seat of a special tooling for repairing high and medium pressure main regulating steam valves proposed by the utility model;
[0027] Figure 3 The utility model provides a schematic structural diagram of a bottom plate of a special tooling for repairing high and medium pressure main regulating steam valves.
[0028] Legend:
[0029] 1. Workbench; 2. Fixed seat; 3. Slide plate; 4. Slider; 5. Clamp; 6. Motor 1; 7. Turntable; 8. Connecting plate; 9. Block; 10. Toolbox; 11. Connecting column; 12. Support leg; 13. Bottom plate; 14. Turnbar; 15. Motor 2; 16. Worm; 17. Worm wheel; 18. Connecting plate; 19. Support seat. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] Reference Figure 1 and Figure 2 , the utility model provides an embodiment: a special tooling for repairing high and medium pressure main regulating steam valves, including a workbench 1, a fixed seat 2 is fixedly connected to the upper surface of the workbench 1, a slide plate 3 is fixedly connected to the upper surface of the fixed seat 2, a slider 4 is slidably connected inside the slide plate 3, a clamping plate 5 is fixedly connected to the upper surface of the slider 4, a motor 6 is fixedly connected inside the fixed seat 2, a rotating plate 7 is fixedly connected to the output end of the motor 6, a connecting plate 8 is rotatably connected to the side wall of the rotating plate 7, one side of the connecting plate 8 is rotatably connected to the side wall of the slider 4, a limiting component is arranged inside the slide plate 3, the limiting component includes a stopper 9, and the side wall of the stopper 9 is fixedly connected to the inside of the slide plate 3;
[0032] When using the device to fix the high and medium pressure main regulating valve for maintenance work, first place the high and medium pressure main regulating valve between the special clamps 5, which is to ensure the stability of the valve during the maintenance process. Next, start the motor 6 to drive the rotating plate 7 to rotate. The rotation of the rotating plate 7 will drive the connecting plate 8 to move accordingly. One side of the connecting plate 8 will rotate on the rotating plate 7. At the same time, the other side of the connecting plate 8 will rotate on the slider 4, and the movement of the connecting plate 8 will be used to pull the slider 4 so that the slider 4 slides inside the slide plate 3. The clamp 5 can gradually fit on the outer wall of the high and medium pressure main regulating valve, thereby achieving the purpose of fixing. After the clamp 5 is tightly fitted with the high and medium pressure main regulating valve, the maintenance staff can start the maintenance work.
[0033] Reference Figure 1 and Figure 3 A toolbox 10 is fixedly connected to the upper surface of the workbench 1, a connecting column 11 is fixedly connected inside the workbench 1, a leg 12 is slidably connected to the side wall of the workbench 1, a base plate 13 is fixedly connected between the legs 12, a rotating rod 14 is rotatably connected inside the base plate 13, a motor 2 15 is fixedly connected to the lower surface of the base plate 13, a worm 16 is fixedly connected to the output end of the motor 2 15, a worm gear 17 is fixedly connected to the side wall of the rotating rod 14, the worm 16 is meshed with the worm gear 17, a support seat 19 is rotatably connected to the side wall of the rotating rod 14, the side wall of the support seat 19 is fixedly connected to the upper surface of the base plate 13, a connecting plate 18 is fixedly connected to the side wall of the rotating rod 14, the side wall of the connecting column 11 is slidably connected to the inside of the connecting plate 18, and the side wall of the connecting plate 18 is slidably connected to the inside of the leg 12.
[0034] During work, when the equipment is switched between workers of different heights, in order to ensure that everyone can operate the equipment comfortably, the motor 2 15 can be started to drive the worm 16 to rotate. During the rotation of the worm 16, the torque will be transmitted to the worm wheel 17, so that the worm wheel 17 rotates accordingly. When the worm wheel 17 rotates, it will drive the rotating rod 14 to rotate accordingly. At this time, the connecting plate 18 will be affected by the rotating rod 14 and deflected upward. As the connecting plate 18 deflects, the workbench 1 will also be lifted up, thereby achieving the effect of changing the height of the equipment. In this way, the height of the equipment can be adjusted according to workers of different heights to adapt to various usage scenarios.
[0035] Working principle: When using the equipment to fix the high and medium pressure main regulating valves for maintenance work, first place the high and medium pressure main regulating valves between the splints 5, and then drive the rotating plate 7 to rotate by starting the motor 1 6. When the rotating plate 7 rotates, it will drive the connecting plate 8 to move, and one side of the connecting plate 8 will rotate on the rotating plate 7, and the other side of the connecting plate 8 will rotate on the slider 4 while pulling the slider 4 to slide inside the slide plate 3, so that the splint 5 gradually fits on the outer wall of the high and medium pressure main regulating valves and fixes them. Then the staff performs maintenance work. When the height of the equipment needs to be adjusted, the worm 16 can be driven to rotate by starting the motor 2 15. When the worm 16 rotates, it will drive the worm wheel 17 to rotate, so that the rotating rod 14 rotates. When the rotating rod 14 rotates, it will cause the connecting plate 18 to deflect upward and lift the workbench 1 upward, thereby changing the height of the equipment to adapt to staff of different heights.
[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A special tool for repairing high and medium pressure main regulating steam valves, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is fixedly connected to a fixed seat (2), the upper surface of the fixed seat (2) is fixedly connected to a slide plate (3), the interior of the slide plate (3) is slidably connected to a slider (4), the upper surface of the slider (4) is fixedly connected to a clamping plate (5), the interior of the fixed seat (2) is fixedly connected to a motor 1 (6), the output end of the motor 1 (6) is fixedly connected to a rotating plate (7), the side wall of the rotating plate (7) is rotatably connected to a connecting plate (8), one side of the connecting plate (8) is rotatably connected to the side wall of the slider (4), and a limiting component is arranged inside the slide plate (3).
2. The special tooling for repairing high and medium pressure main regulating steam valve according to claim 1 is characterized by: The limiting assembly comprises a stopper (9), and a side wall of the stopper (9) is fixedly connected inside the slide plate (3).
3. The special tooling for repairing high and medium pressure main regulating valves according to claim 1 is characterized in that: A tool box (10) is fixedly connected to the upper surface of the workbench (1), and a connecting column (11) is fixedly connected inside the workbench (1).
4. The special tooling for repairing high and medium pressure main regulating valves according to claim 3 is characterized by: The side wall of the workbench (1) is slidably connected to a support leg (12), and a bottom plate (13) is fixedly connected between the support legs (12).
5. The special tooling for repairing high and medium pressure main regulating steam valves according to claim 4 is characterized in that: A rotating rod (14) is rotatably connected inside the bottom plate (13), and a second motor (15) is fixedly connected to the lower surface of the bottom plate (13).
6. The special tooling for repairing high and medium pressure main regulating steam valves according to claim 5 is characterized by: The output end of the second motor (15) is fixedly connected with a worm (16), the side wall of the rotating rod (14) is fixedly connected with a worm wheel (17), and the worm (16) is meshed with the worm wheel (17).
7. The special tooling for repairing high and medium pressure main regulating steam valves according to claim 5 is characterized by: The side wall of the rotating rod (14) is rotatably connected to a support seat (19), and the side wall of the support seat (19) is fixedly connected to the upper surface of the bottom plate (13).
8. The special tooling for repairing high and medium pressure main regulating steam valves according to claim 5 is characterized by: The side wall of the rotating rod (14) is fixedly connected to a connecting plate (18), the side wall of the connecting column (11) is slidably connected inside the connecting plate (18), and the side wall of the connecting plate (18) is slidably connected inside the supporting leg (12).