High-precision steam turbine shaft system alignment tool

Abstract

The utility model relates to the technical field of maintenance tools, in particular to a high-precision steam turbine shafting alignment tool which comprises a fixing frame, a fixing clamping plate is fixedly connected to the right side of the bottom of the fixing frame, a sliding clamping plate is arranged on the left side of the fixing clamping plate, a support is arranged in the middle of the right side of the fixing frame, and a sliding table is slidably connected into the support. A dial indicator is fixedly inserted into the right side of the top of the sliding table, a clamping mechanism is arranged in the fixing frame, and an adjusting mechanism is arranged on the right side of the fixing frame. According to the utility model, the clamping of the fixing frame and the lifting adjustment of the dial indicator are realized, and the convenience and adjustability of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of maintenance tools, specifically a high-precision turbine shaft alignment tool. Background Technology

[0002] A steam turbine shaft system consists of multiple rotors connected by couplings. If the shaft system is not correctly centered, the centerlines of the rotors cannot form a smooth curve, resulting in vibration during operation. Excessive vibration can lead to bearing wear, seal damage, and even friction between moving and stationary parts, severely affecting the stability and safety of the unit. The alignment accuracy of the shaft system directly affects the efficiency of the steam turbine. Alignment deviations can increase steam leakage, reduce the turbine's thermal efficiency, increase energy consumption, and raise power generation costs.

[0003] Existing devices primarily use a bracket in conjunction with a dial indicator for alignment. Current technology is largely similar to a turbine coupling alignment tool, as described in publication number CN207263059U. The structure includes a screw, bracket, nut, slider, slider clamp, and fixing bolt. The bracket is generally L-shaped, with a rectangular groove on both its upper and side surfaces. Nuts are installed at both ends of the screw, with one end inserted into the groove on the side surface of the bracket. The nut engages with the screw threadedly, tightening one end of the screw to the bracket for secure alignment. This invention effectively fixes the dial indicator to the coupling, completing the coupling alignment.

[0004] Existing devices mainly use plug-in screws to fix the support frame, making it difficult to stably clamp some devices onto the wheel shaft coupling. This makes it inconvenient to quickly fix the leveling device. At the same time, it is difficult to adjust the height of the dial indicator according to the radius of the wheel shaft coupling, making it inconvenient to bring the dial indicator needle close to the outer wall of the coupling, thus reducing the working efficiency and practicality of the device. Therefore, in order to solve the above problems, a high-precision turbine shaft alignment tool is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a high-precision turbine shaft alignment tool to solve the problems mentioned in the background art. The existing devices mainly use plug-in screws to fix the support frame, which makes it difficult for some devices to be stably clamped on the wheel shaft coupling, thus making it inconvenient to quickly fix the leveling device. At the same time, some devices are difficult to adjust the height of the dial indicator according to the radius of the wheel shaft coupling, thus making it inconvenient to bring the dial indicator needle close to the outer wall of the coupling.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-precision turbine shaft alignment tool, comprising a fixed frame, a fixed clamping plate fixedly connected to the bottom right side of the fixed frame, a sliding clamping plate provided on the left side of the fixed clamping plate, a bracket provided in the middle of the right side of the fixed frame, a slide table slidably connected inside the bracket, and a dial indicator fixedly inserted into the top right side of the slide table;

[0007] The fixed frame is provided with a clamping mechanism inside. The clamping mechanism includes a sliding frame, which is located inside the fixed frame. The top of the sliding clamp is fixedly connected to the bottom of the sliding frame. The right side of the fixed frame is provided with an adjustment mechanism, which includes a slot. The left side of the slot is fixedly connected to the middle of the right side of the fixed frame.

[0008] Preferably, the sliding frame has limit holes on both sides inside, and a limit rod is inserted into the inner wall of the limit hole. The two ends of the limit rod are fixedly connected to the lower inner wall of the fixed frame.

[0009] Preferably, a pusher sleeve is fixedly connected to the top center of the sliding frame, and a movable screw is threadedly connected to the inner wall of the pusher sleeve.

[0010] Preferably, the right end of the movable screw is movably connected to the upper right side of the inner wall of the fixed frame, and the left end of the movable screw passes through the left side wall of the fixed frame and is fixedly connected to the first twist cap.

[0011] Preferably, a lifting frame is inserted into the inner wall of the slot, the left end of the bracket is fixedly connected to the right side of the lifting frame, and a lifting screw is fixedly connected to the top of the lifting frame.

[0012] Preferably, an adjusting screw is threadedly connected to the upper part of the inner wall of the lifting cylinder, and the top end of the adjusting screw passes through the fixing frame and is fixedly connected to a second twist cap.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model utilizes a clamping mechanism with a sliding frame, limiting hole, limiting rod, pushing screw sleeve, movable screw, and first twist cover. By rotating the first twist cover, the movable screw is limited to rotation. The movable screw then drives the pushing screw sleeve, sliding frame, and sliding clamp to slide left and right, allowing the sliding clamp to cooperate with the fixed clamp to mount the fixed frame. This achieves clamping of the fixed frame, enabling some parts of the device to be stably clamped on the wheel axle coupling. This facilitates quick fixation and leveling of the device, improving its convenience and practicality.

[0015] 2. This utility model, through the adjustment mechanism including the slot, lifting frame, lifting screw, adjusting screw, and second toggle cover, achieves the adjustment of the dial indicator by rotating the second toggle cover to limit the rotation of the adjusting screw. The adjusting screw then drives the lifting screw and lifting frame to slide up and down, and the lifting frame drives the bracket, slide table, and dial indicator to slide synchronously. This allows for the adjustment of the dial indicator's height based on the radius of the wheel-shaft coupling, making it easier to bring the dial indicator needle close to the outer wall of the coupling, thus improving the adjustability and practicality of the device. Attached Figure Description

[0016] Figure 1 This is a front side perspective view of the structure of this utility model;

[0017] Figure 2 This is a frontal sectional perspective view of the structure of this utility model;

[0018] Figure 3 This is a front sectional perspective view of a portion of the structure of the fixing frame and clamping mechanism of this utility model;

[0019] Figure 4 This is a partial side perspective view of the fixing frame and adjustment mechanism of this utility model.

[0020] In the diagram: 11. Fixed frame; 12. Fixed clamping plate; 13. Sliding clamping plate; 14. Bracket; 15. Slide table; 16. Dial indicator; 2. Clamping mechanism; 21. Sliding frame; 22. Limiting hole; 23. Limiting rod; 24. Pushing screw sleeve; 25. Movable screw; 26. First twist cover; 3. Adjustment mechanism; 31. Slot; 32. Lifting frame; 33. Lifting screw cylinder; 34. Adjusting screw; 35. Second twist cover. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4 One embodiment provided by this utility model:

[0023] A high-precision turbine shaft alignment tool includes a fixed frame 11, a fixed clamping plate 12 fixedly connected to the bottom right side of the fixed frame 11, a sliding clamping plate 13 provided on the left side of the fixed clamping plate 12, a bracket 14 provided in the middle of the right side of the fixed frame 11, a slide table 15 slidably connected inside the bracket 14, and a dial indicator 16 fixedly inserted into the top right side of the slide table 15.

[0024] The fixed frame 11 is equipped with a clamping mechanism 2, which includes a sliding frame 21. The sliding frame 21 is located inside the fixed frame 11. The top of the sliding clamping plate 13 is fixedly connected to the bottom of the sliding frame 21. Limiting holes 22 are opened on both sides inside the sliding frame 21. Limiting rods 23 are inserted into the inner walls of the limiting holes 22. The two ends of the limiting rods 23 are fixedly connected to the lower inner wall of the fixed frame 11. Through this design, the sliding frame 21 drives the sliding clamping plate 13 to slide along the limiting rods 23. A push screw sleeve 24 is fixedly connected to the top center of the movable frame 21. A movable screw 25 is threadedly connected to the inner wall of the push screw sleeve 24. Through this design, the movable screw 25 drives the push screw sleeve 24 and the sliding frame 21 to slide left and right. The right end of the movable screw 25 is movably connected to the upper right side of the inner wall of the fixed frame 11. The left end of the movable screw 25 passes through the left side wall of the fixed frame 11 and is fixedly connected to the first twist cap 26. Through this design, the first twist cap 26 drives the movable screw 25 to rotate in a limited position.

[0025] An adjustment mechanism 3 is provided on the right side of the fixed frame 11. The adjustment mechanism 3 includes a slot 31. The left side of the slot 31 is fixedly connected to the middle of the right side of the fixed frame 11. A lifting frame 32 is inserted into the inner wall of the slot 31. The left end of the bracket 14 is fixedly connected to the right side of the lifting frame 32. A lifting screw 33 is fixedly connected to the top of the lifting frame 32. Through this design, the lifting frame 32 drives the bracket 14 to slide up and down. An adjusting screw 34 is threadedly connected to the upper part of the inner wall of the lifting screw 33. The top end of the adjusting screw 34 passes through the fixed frame 11 and is fixedly connected to a second twist cap 35. Through this design, the second twist cap 35 drives the adjusting screw 34 to rotate in a limited position. The adjusting screw 34 drives the lifting screw 33 and the lifting frame 32 to slide up and down.

[0026] Working principle: When it is necessary to clamp the fixed frame 11, firstly, by rotating the first twist cover 26, the first twist cover 26 drives the movable screw 25 to rotate in a limited position. The movable screw 25 drives the push screw sleeve 24 to slide left and right. The push screw sleeve 24 drives the sliding frame 21 to slide left and right along the limit rod 23. The sliding frame 21 drives the sliding clamp 13 to slide synchronously, so that the sliding clamp 13 cooperates with the fixed clamp 12 to place the fixed frame 11, thus realizing the clamping operation of the fixed frame 11.

[0027] When the dial indicator 16 needs to be adjusted in height, firstly, the second twist cover 35 is rotated. The second twist cover 35 drives the adjusting screw 34 to rotate in a limited position. The adjusting screw 34 drives the lifting screw cylinder 33 to slide up and down. The lifting screw cylinder 33 drives the lifting frame 32 to slide in a limited position on the inner wall of the slot 31. The lifting frame 32 drives the bracket 14, the slide table 15 and the dial indicator 16 to slide synchronously, thus realizing the adjustment operation of the dial indicator 16. The operation ends here.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A high-precision turbine shaft alignment tool comprising a fixed frame (11), characterized in that: The right side of the bottom of the fixed frame (11) is fixedly connected with a fixed clamping plate (12), the left side of the fixed clamping plate (12) is provided with a sliding clamping plate (13), the middle part of the right side of the fixed frame (11) is provided with a support (14), the inside of the support (14) is slidably connected with a sliding table (15), the right side of the top of the sliding table (15) is fixedly inserted with a dial indicator (16); The inside of the fixed frame (11) is provided with a clamping mechanism (2), the clamping mechanism (2) comprises a sliding frame (21), the sliding frame (21) is arranged in the inside of the fixed frame (11), the top of the sliding clamping plate (13) is fixedly connected with the bottom of the sliding frame (21), the right side of the fixed frame (11) is provided with an adjusting mechanism (3), the adjusting mechanism (3) comprises a clamping groove (31), the left side of the clamping groove (31) is fixedly connected with the middle part of the right side of the fixed frame (11).

2. A high precision turbine shaft alignment tool as claimed in claim 1, wherein: The inside of the sliding frame (21) is provided with a limiting hole (22) on both sides, the inner wall of the limiting hole (22) is inserted with a limiting rod (23), both ends of the limiting rod (23) are fixedly connected below the inner wall of the fixed frame (11).

3. A high precision turbine shaft alignment tool as claimed in claim 1, wherein: The top of the sliding frame (21) is fixedly connected with a push screw (24), the inner wall of the push screw (24) is threadedly connected with a movable screw rod (25).

4. A high precision turbine shaft alignment tool as claimed in claim 3, wherein: The right end of the movable screw rod (25) is movably connected above the right side of the inner wall of the fixed frame (11), the left end of the movable screw rod (25) penetrates through the left side wall of the fixed frame (11) and is fixedly connected with a first twist cover (26).

5. A high precision turbine shaft alignment tool as claimed in claim 1, wherein: The inner wall of the clamping groove (31) is inserted with a lifting frame (32), the left end of the support (14) is fixedly connected with the right side of the lifting frame (32), the top of the lifting frame (32) is fixedly connected with a lifting screw cylinder (33).

6. A high precision turbine shaft alignment tool as claimed in claim 5, characterized in that: The inner wall of the lifting screw cylinder (33) is threadedly connected with an adjusting screw rod (34) above, the top end of the adjusting screw rod (34) penetrates through the fixed frame (11) and is fixedly connected with a second twist cover (35).

Images