Roundness measuring tool for rotor of water-turbine generator set

Abstract

The utility model discloses a tool for measuring the roundness of a rotor of a water-turbine generator set, and the tool comprises a sleeving assembly which comprises a shaft tube, an upper sleeving port disposed at the top of the shaft tube, and a lower sleeving port disposed at the bottom of the shaft tube. The connecting assembly is arranged on the outer wall of the shaft tube and comprises a fixing frame, a sliding groove formed in the bottom of the fixing frame and a measuring block connected with the sliding groove in a sliding mode; and the sleeving assembly is arranged on the outer wall of the shaft tube and comprises a connecting box arranged on the outer wall of the shaft tube and a sliding ruler in sliding connection with the inner wall of the connecting box. By rotating the shaft tube, the measuring block and the micrometer on the measuring block can be driven to quickly measure different areas of the rotor, so that the situation of missing measurement is prevented, the measurement accuracy is ensured, and the measurement efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rotor roundness measurement field especially a kind of water-turbine generator set rotor roundness measurement tool. BACKGROUND

[0002] In water-turbine generator set, the roundness and coaxality of rotor directly influence the vibration and stability when unit is operated, if outer circle tolerance exceeds 1 millimeter, it can lead to uneven gap between stator and rotor, cause violent vibration, even threaten unit safe operation, so when water-turbine generator unit is overhauled, technical personnel need to use micrometer to measure rotor diameter to check whether rotor is deformed.

[0003] When technical personnel need to measure large motor rotor, it is difficult to cover the entire rotor section by micrometer, and technical personnel need to measure different rotor regions in batches, and this measurement method is prone to missing phenomenon, which will affect the accuracy of measurement. UTILITY MODEL CONTENT

[0004] Therefore, the technical problem to be solved by the utility model is that the large motor rotor diameter is measured in batches by micrometer, which is prone to missing phenomenon, and will affect the accuracy of measurement.

[0005] The above technical problem is solved by the following technical scheme: the utility model provides a kind of water-turbine generator set rotor roundness measurement tool, it includes sleeve joint subassembly, including shaft pipe, the upper sleeve interface of setting in the shaft pipe top and the lower sleeve interface of setting in the shaft pipe bottom;And,

[0006] Connecting assembly is arranged on the outer wall of the shaft pipe, and includes a fixing frame, a sliding slot arranged at the bottom of the fixing frame and a measuring block in sliding connection with the sliding slot;And,

[0007] Measuring assembly is arranged on the outer wall of the shaft pipe, and includes a connecting box arranged on the outer wall of the shaft pipe and a sliding ruler in sliding connection with the inner wall of the connecting box.

[0008] In a preferred embodiment of the water-turbine generator set rotor roundness measurement tool described in the utility model: the fixing frame is provided with a connecting strip on one side, and the outer wall of the shaft pipe is connected with the outer wall of the connecting strip.

[0009] In a preferred embodiment of the water-turbine generator set rotor roundness measurement tool described in the utility model: a through hole is formed in one side of the connecting box, and the sliding ruler is located in the through hole.

[0010] In a preferred embodiment of the water-turbine generator set rotor roundness measurement tool described in the utility model: an observation port is formed in one side of the connecting box, and the observation port and the through hole are in communication with each other.

[0011] In one preferred embodiment of the water turbine generator set rotor roundness measuring tool, the connecting box is provided with a protruding block at the middle of the observation port, and the inner wall of the through hole is provided with a connecting block.

[0012] In one preferred embodiment of the water turbine generator set rotor roundness measuring tool, the sliding ruler is provided with a scale line on the side close to the observation port, and the end of the sliding ruler is provided with a mounting block.

[0013] In one preferred embodiment of the water turbine generator set rotor roundness measuring tool, the mounting block is connected with a measuring block on the outer wall, and the outer wall of the mounting block is slidingly connected with the outer wall of the fixing frame.

[0014] In one preferred embodiment of the water turbine generator set rotor roundness measuring tool, the sliding ruler is provided with a placing groove on the side close to the mounting block, and the inner wall of the placing groove is slidingly connected with the outer wall of the mounting block.

[0015] In one preferred embodiment of the water turbine generator set rotor roundness measuring tool, the mounting block is provided with an elastic member on one side, and the outer wall of the other side of the elastic member is connected with one side of the placing groove.

[0016] In one preferred embodiment of the water turbine generator set rotor roundness measuring tool, the protruding block is triangular in shape, and the sharp corner of the protruding block points to the scale line.

[0017] The beneficial effects of the present utility model lie in that the rotating shaft pipe can drive the measuring block and the micrometer thereon to quickly measure different regions of the rotor, thereby preventing the occurrence of missed measurement, ensuring the accuracy of measurement, and improving the measurement efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments of the present utility model will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present utility model, and are not a limitation on the present utility model. Among them:

[0019] Fig. 1 The overall structure diagram is shown;

[0020] Fig. 2 The structure diagram of the sleeve connection assembly is shown;

[0021] Fig. 3 The structure diagram of the connecting assembly is shown;

[0022] Fig. 4A structural diagram of the sleeve joint assembly is shown.

[0023] Fig. 5 A structural diagram of the sliding ruler is shown.

[0024] Fig. 6 A connection diagram of the sleeve joint assembly and the sliding ruler is shown. DETAILED DESCRIPTION

[0025] In order for those skilled in the art to better understand the present application, the present application will be further described in detail below in conjunction with specific embodiments and drawings.

[0026] The terms used in the present application are those general terms currently widely used in the art in consideration of the functions regarding the present application, but the terms can be changed according to the intention of those skilled in the art, precedents, or new technology in the art. In addition, specific terms can be selected by the applicant, and in this case, the detailed meanings thereof will be described in the detailed description of the present application. Therefore, the terms used in the specification should not be understood as mere names, but based on the meanings of the terms and the overall description of the present application.

[0027] Referring to Figs. 1-6 , the present embodiment provides a water turbine generator rotor roundness measuring tool, comprising

[0028] The sleeve joint assembly 100 comprises a shaft tube 101, an upper sleeve joint 102 provided at the top of the shaft tube 101, and a lower sleeve joint 103 provided at the bottom of the shaft tube 101, wherein the diameter of the upper sleeve joint 102 is smaller than that of the lower sleeve joint 103, so that the shaft tube 101 can be clamped onto the motor rotor shaft.

[0029] The connecting assembly 200 is provided on the outer wall of the shaft tube 101 and comprises a fixing frame 201, a sliding groove 202 provided at the bottom of the fixing frame 201, and a measuring block 203 in sliding connection with the sliding groove 202, wherein, as shown in Fig. 1 , the connecting assembly 200 is provided on both sides of the shaft tube 101.

[0030] It should be noted that a sliding block is provided on the top of the measuring block 203, which has the same shape as the sliding groove 202, and the sliding block is in sliding connection with the sliding groove 202. The position of the measuring block 203 can be adjusted according to specific needs to adapt to rotors of different diameters.

[0031] As Fig. 3As shown, the measuring block 203 is inverted triangular, which is used to fit the surface of the motor rotor. The measuring block 203 can be driven to rotate by rotating the shaft tube 101, and then the measuring block 203 rotates around the rotor. A plurality of micrometers can be installed on the measuring block 203, so that the rotor surface in different areas can be measured at the same time, thereby preventing the situation of missing measurement and ensuring the accuracy of measurement.

[0032] The fixed frame 201 is provided with a connecting strip 204 on one side, and the outer wall of the shaft tube 101 is connected with the outer wall of the connecting strip 204. The connecting strip 204 can be fixed to the shaft tube 101 by bolts, so that the connecting assembly 200 and the shaft tube 101 are connected together.

[0033] As an optional embodiment, the embodiment provides a more rapid way to measure whether the rotor surface is protruding.

[0034] The measuring assembly 300 is arranged on the outer wall of the shaft tube 101, and includes a connecting box 301 arranged on the outer wall of the shaft tube 101 and a sliding ruler 306 slidably connected with the inner wall of the connecting box 301. A through hole 302 is formed in one side of the connecting box 301, and the sliding ruler 306 is located in the through hole 302. As shown, Fig. 5 As shown, the sliding ruler 306 has two sections, which are named as upper section and lower section. The upper section and the lower section of the sliding ruler 306 can be combined into a complete sliding ruler 306, and both of them are slidably connected in the through hole 302.

[0035] An observation hole 303 is formed in one side of the connecting box 301, and the observation hole 303 is in communication with the through hole 302. When the upper section and the lower section of the sliding ruler 306 move in the connecting box 301, the movement of the two sections can be observed through the observation hole 303.

[0036] It should be noted that the upper section and the lower section of the sliding ruler 306 can move in the connecting box 301 respectively, and the moving directions of the two sections are opposite.

[0037] The connecting box 301 is provided with a protruding block 304 at the middle position of the observation hole 303, the inner wall of the through hole 302 is provided with a connecting block 305, the sliding ruler 306 is provided with a scale line 307 on the side close to the observation hole 303, and the end of the sliding ruler 306 is provided with a mounting block 308. The protruding block 304 is triangular in shape, and the sharp corner of the protruding block 304 points to the scale line 307. The scale line 307 is arranged on the upper section and the lower section of the sliding ruler 306, and numbers can be arranged on the scale line 307. When any one of the upper section and the lower section of the sliding ruler 306 moves, the scale line 307 on it also moves. At this time, the technician can analyze whether the rotor surface is protruding by watching the scale line 307 pointed by the protruding block 304, so as to determine whether the diameter of the rotor changes.

[0038] The outer wall of the mounting block 308 is connected with the measuring block 203, and the outer wall of the mounting block 308 is slidably connected with the outer wall of the fixing frame 201. The sliding ruler 306 is provided with a placing groove 309 on the side close to the mounting block 308, and the inner wall of the placing groove 309 is slidably connected with the outer wall of the mounting block 308. The mounting block 308 is provided with an elastic member 310 on one side, and the outer wall of the other side of the elastic member 310 is connected with one side of the placing groove 309. When the diameter of the rotor changes, the measuring block 203 in contact with the rotor changes, and the measuring block 203 drives the sliding ruler 306 to move, and the scale line 307 pointed by the convex block 304 changes, and the technician can quickly determine whether the diameter of the rotor changes by observing the change of the scale line 307.

[0039] It should be noted that the elastic member 310 pulls the sliding ruler 306 and the measuring block 203 to approach the rotor.

[0040] As an optional embodiment, the embodiment provides another way to pull the sliding ruler 306 and the measuring block 203 to approach the rotor.

[0041] The outer wall of the mounting block 308 is connected with the measuring block 203, and the outer wall of the mounting block 308 is slidably connected with the outer wall of the fixing frame 201. The sliding ruler 306 is provided with a placing groove 309 on the side close to the mounting block 308, and the inner wall of the placing groove 309 is slidably connected with the outer wall of the mounting block 308. The mounting block 308 is provided with an elastic member 310 on one side, and the outer wall of the other side of the elastic member 310 is connected with one side of the placing groove 309. The elastic member 310 is a tension spring, which pulls the measuring block 203 to move after the measuring block 203 moves.

[0042] Here, the elastic member 310 can be replaced by an automatically rotating runner and a rope. The automatically rotating runner is installed in the placing groove 309, and the rope is installed on the sliding ruler 306. In this way, the sliding ruler 306 can still drive the measuring block 203 to adhere to the rotor after moving, and the pulling force provided by this way is larger than the above-mentioned way, which can better pull the sliding ruler 306 and the measuring block 203 to move.

[0043] Finally, it should be noted that the above detailed description of the method and device is only an embodiment, and those skilled in the art can modify the embodiment in different ways without departing from the scope of the present application.

Claims

1. A hydroelectric generator rotor roundness measuring tool, characterized by: Including, The sleeve assembly (100) comprises a shaft pipe (101), an upper sleeve interface (102) arranged at the top of the shaft pipe (101) and a lower sleeve interface (103) arranged at the bottom of the shaft pipe (101); and, The connecting assembly (200) is arranged on the outer wall of the shaft pipe (101) and comprises a fixing frame (201), a sliding groove (202) arranged at the bottom of the fixing frame (201) and a measuring block (203) in sliding connection with the sliding groove (202); and, The measuring assembly (300) is arranged on the outer wall of the shaft pipe (101) and comprises a connecting box (301) arranged on the outer wall of the shaft pipe (101) and a sliding ruler (306) in sliding connection with the inner wall of the connecting box (301).

2. The hydroelectric generator rotor roundness measuring tool of claim 1, wherein: One side of the fixing frame (201) is provided with a connecting strip (204), and the outer wall of the shaft pipe (101) is connected with the outer wall of the connecting strip (204).

3. The hydroelectric generator rotor roundness measuring tool of claim 2, wherein: One side of the connecting box (301) is provided with a through hole (302), and the sliding ruler (306) is located in the through hole (302).

4. The hydroelectric generator rotor roundness measuring tool of claim 3, wherein: One side of the connecting box (301) is provided with an observation port (303), and the observation port (303) and the through hole (302) are in communication with each other.

5. The hydroelectric generator rotor roundness measuring tool of claim 4, wherein: The connecting box (301) is provided with a protruding block (304) at the middle position of the observation port (303), and the inner wall of the through hole (302) is provided with a connecting block (305).

6. The hydroelectric generator rotor roundness measuring tool of claim 5, wherein: One side of the sliding ruler (306) close to the observation port (303) is provided with a scale line (307), and the end of the sliding ruler (306) is provided with a mounting block (308).

7. The hydroelectric generator rotor roundness measuring tool of claim 6, wherein: The outer wall of the mounting block (308) is connected with the measuring block (203), and the outer wall of the mounting block (308) is in sliding connection with the outer wall of the fixing frame (201).

8. The hydroelectric generator rotor roundness measuring tool of claim 7, wherein: One side of the sliding ruler (306) close to the mounting block (308) is provided with a placing groove (309), and the inner wall of the placing groove (309) is in sliding connection with the outer wall of the mounting block (308).

9. The hydroelectric generator rotor roundness measuring tool of claim 8, wherein: One side of the mounting block (308) is provided with an elastic member (310), and the other side of the outer wall of the elastic member (310) is connected with one side of the placing groove (309).

10. The hydroelectric generator rotor roundness measuring tool of claim 9, wherein: The protruding block (304) is triangular in shape, and the sharp corner of the protruding block (304) points to the scale line (307).

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