Tool for measuring spring cluster of thrust bearing of water-turbine generator set

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By designing the thrust bearing spring cluster measurement tooling for the hydrowheel generator set, the micro motor drives the movement of the inclined block and the fixation of the suction cup, combined with light source and dialmeter detection, the problem of verticality detection of the spring cluster is solved, ensuring the uniform force of the spring cluster and avoiding wear of the thrust tiles.

CN223258807UActive Publication Date: 2025-08-22XINANJIANG HYDROELECTRIC GENERATION FACTORY OF STATE GRID XINYUAN HYDROPOWER +1

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Patent Information

Application Number: CN202422806978.9
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-11-18
Publication Date: 2025-08-22
Estimated Expiration: 2034-11-18

AI Technical Summary

Technical Problem

In the prior art, the verticality detection of the spring cluster of the thrust bearing of the hydrowheel generator set cannot be effectively carried out, resulting in uneven spring stress, which may lead to spring deformation and the problem of dry-grinding and burning of thrust tiles.

Method used

A thrust bearing spring cluster measurement tool for the hydrowheel generator set is designed, including a base plate, a verticality measurement board, a dial meter support board and a stabilizing mechanism. The oblique block is driven by a micro motor, the tool is fixed by a suction cup, and the verticality and gap detection of the spring cluster is combined with a light source and a dial meter.

Benefits of technology

Accurate detection of the verticality of the spring cluster is achieved, avoiding uneven spring stress and wear of the thrust tile, and improving the stability and accuracy of the measurement.

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Abstract

The utility model belongs to the technical field of spring cluster measuring tools, and particularly relates to a water-turbine generator set thrust bearing spring cluster measuring tool which comprises a bottom plate, the upper end of the bottom plate is in contact with a first perpendicularity measuring plate, and the upper end of the bottom plate is in contact with a second perpendicularity measuring plate. The second perpendicularity measuring plate is in contact with the first perpendicularity measuring plate, the middle of the upper end of the bottom plate is in contact with a spring cluster, the spring cluster is in contact with the second perpendicularity measuring plate, and the spring cluster is in contact with the first perpendicularity measuring plate. A dial indicator supporting plate is arranged at the upper end of the second perpendicularity measuring plate, and a dial indicator is arranged in the dial indicator supporting plate. Through the arrangement of the micro motor, the screw rod and other structures, the inclined block can be driven to move, the telescopic plate can be extruded, then the suction cup is exposed out of the bottom plate and makes contact with a tool placement table top, the tool is adsorbed and fixed, and the tool placement stability is improved in an auxiliary mode.

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Description

Technical Field

[0001] The utility model relates to the technical field of spring cluster measuring tooling, in particular to a spring cluster measuring tooling for a thrust bearing of a hydro-turbine generator set. Background Art

[0002] At present, small spring cluster multi-point support structure thrust bearings are widely used. When the spring cluster leaves the factory, load tests and spring dimension measurements are carried out.

[0003] Moreover, the lower part of a single bearing in a multi-point support structure of a small spring cluster is supported by dozens of small spring clusters. If the verticality of one of the spring clusters is poor, the uneven force on the spring may cause serious deformation of the spring and affect other spring clusters around it. The movement of the thrust bearing will become smaller or even unable to move, eventually causing dry grinding and burning of the thrust bearing surface.

[0004] When the spring cluster is transported to the work site, due to the lack of measuring tooling, the spring height is only measured with an outside micrometer or a dial indicator, which requires the measuring plane of the old mirror plate; the verticality of the spring cluster is limited to visual observation and checking the amount of movement after the spring cluster is placed, and the verticality of the spring cannot be tested.

[0005] In response to the above problems, this application document proposes a measuring tool for the thrust bearing spring cluster of a hydro-turbine generator set. Utility Model Content

[0006] The purpose of the utility model is to provide a measuring tool for the spring cluster of the thrust bearing of a hydro-turbine generator set, which solves the problem that the spring height is measured only by using an outside micrometer or a dial indicator, and the measuring plane of an old mirror plate is required; the verticality of the spring cluster is limited to visual observation and checking the amount of movement after the spring cluster is placed, and the verticality of the spring cannot be detected.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a hydraulic generator thrust bearing spring cluster measuring tool, comprising a base plate, wherein the upper end of the base plate contacts a first verticality measuring plate, the upper end of the base plate contacts a second verticality measuring plate, the second verticality measuring plate and the first verticality measuring plate contact each other, the middle portion of the upper end of the base plate contacts a spring cluster, the spring cluster contacts the second verticality measuring plate, and the spring cluster contacts the first verticality measuring plate;

[0008] A dial indicator support plate is provided at the upper end of the verticality measurement plate 2, a dial indicator is provided inside the dial indicator support plate, a connecting component is provided inside the base plate, a rectangular light source hole is commonly opened in the middle of the surface of the verticality measurement plate 2 and the verticality measurement plate 1, and a stabilizing mechanism is provided inside the base plate.

[0009] Preferably, the connecting component contacts the second verticality measuring plate, and the connecting component contacts the first verticality measuring plate. By setting the connecting component, the second verticality measuring plate, the first verticality measuring plate and the base plate can be assembled and fixed for use.

[0010] Preferably, the stabilizing mechanism includes a micro motor, a micro motor is fixedly installed on the inner side wall of the base plate, the output shaft of the micro motor is fixedly connected to a screw, the outer side of the screw is connected to an inclined block by a thread, the inclined block is slidably connected to the base plate, the inner wall of the base plate is fixedly connected to a fixed plate, the inner wall of the fixed plate is slidably connected to a telescopic plate, the vertical part of the telescopic plate is in contact with the inclined block, a connecting spring is provided on the outer side of the telescopic plate, and the horizontal part of the telescopic plate is fixedly connected to a suction cup, and through the arrangement of the micro motor, the screw and other structures, the inclined block can be driven to move, and then the telescopic plate can be squeezed to push the suction cup to expose the base plate, so as to improve the adsorption stability of the tooling.

[0011] Preferably, a guide piece is fixedly connected to the inner wall of the bottom plate, and the guide piece is slidably connected to the inclined block. Through the provision of the guide piece, the inclined block can be used for guidance.

[0012] Preferably, one end of the connecting spring is welded to the fixed plate, and the other end of the connecting spring is welded to the horizontal portion of the telescopic plate. By setting the connecting spring, the telescopic plate can be connected for use.

[0013] Preferably, the suction cup is slidably connected to the bottom plate, and the suction cup is made of rubber. The arrangement of the suction cup can improve the stability of the bottom plate, and the rubber material has a good deformation effect.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The utility model can drive the inclined block to move through the arrangement of micro motors, screws and other structures, squeeze the telescopic plate, and then make the suction cup exposed from the bottom plate and contact with the placement table of the tooling, so as to adsorb and fix the tooling, thereby helping to improve the stability of the tooling placement.

[0016] 2. The utility model can be used to check the gap between the gasket on the spring cluster and the first and second verticality measuring plates by using a light source, a first verticality measuring plate, a second verticality measuring plate, a rectangular light source hole and other structural components. The spring cluster is rotated 90° and the gap between the gasket on the spring cluster and the first and second verticality measuring plates is checked. If both gaps are zero, the verticality of the spring cluster meets the requirements. If the gap is large, the gap between the gasket on the spring cluster and the first and second verticality measuring plates is measured with a feeler gauge to check the verticality deviation of the spring cluster. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 For the utility model Figure 1 A magnified view of the stable mechanism;

[0019] Figure 3 For the utility model Figure 1 A top view of

[0020] Figure 4 For the utility model Figure 3 Schematic diagram of the base plate;

[0021] Figure 5 For the utility model Figure 1 A front view of a verticality measuring plate;

[0022] Figure 6 For the utility model Figure 1 Side view of the verticality measuring plate;

[0023] Figure 7 For the utility model Figure 1 Top view of the dial indicator support plate.

[0024] In the figure: 1. Spring cluster; 2. Base plate; 3. Verticality measuring plate 1; 4. Verticality measuring plate 2; 5. Dial indicator support plate; 6. Dial indicator; 7. Connecting component; 8. Rectangular light source hole; 9. Stabilizing mechanism; 91. Micro motor; 92. Screw; 93. Inclined block; 94. Guide plate; 95. Fixed plate; 96. Telescopic plate; 97. Connecting spring; 98. Suction cup. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7The hydraulic generator thrust bearing spring cluster measuring tool comprises a bottom plate 2, the upper end of the bottom plate 2 contacts a verticality measuring plate 3, the upper end of the bottom plate 2 contacts a verticality measuring plate 2 4, the verticality measuring plate 2 4 and the verticality measuring plate 1 3 contact each other, the middle portion of the upper end of the bottom plate 2 contacts a spring cluster 1, the spring cluster 1 contacts the verticality measuring plate 2 4, and the spring cluster 1 contacts the verticality measuring plate 1 3;

[0027] A dial indicator support plate 5 is provided at the upper end of the verticality measuring plate 2 4, a dial indicator 6 is provided inside the dial indicator support plate 5, and a connecting component 7 is provided inside the base plate 2, the connecting component 7 is in contact with the verticality measuring plate 2 4, and the connecting component 7 is in contact with the verticality measuring plate 1 3. Through the setting of the connecting component 7, the verticality measuring plate 2 4, the verticality measuring plate 1 3 and the base plate 2 can be assembled and fixed for use. A rectangular light source hole 8 is commonly opened in the middle of the surface of the verticality measuring plate 2 4 and the verticality measuring plate 1 3.

[0028] See also Figure 1 、 Figure 2 , a stabilizing mechanism 9 is provided inside the bottom plate 2, and the stabilizing mechanism 9 includes a micro motor 91, a micro motor 91 is fixedly installed on the inner side wall of the bottom plate 2, and the output shaft of the micro motor 91 is fixedly connected to a screw 92, and the outer side of the screw 92 is connected to an inclined block 93 by a thread, and the inclined block 93 is slidably connected to the bottom plate 2, and the inner wall of the bottom plate 2 is fixedly connected to a fixed plate 95, and the inner wall of the fixed plate 95 is slidably connected to a telescopic plate 96, and the vertical part of the telescopic plate 96 contacts the inclined block 93, and a connecting spring 97 is provided on the outer side of the telescopic plate 96, and a suction cup 98 is fixedly connected to the horizontal part of the telescopic plate 96. Through the arrangement of the micro motor 91, the screw 92 and other structures, the inclined block 93 can be driven to move, and then the telescopic plate 96 is squeezed to push the suction cup 98 to expose the bottom plate 2, so as to improve the adsorption stability of the tooling.

[0029] See also Figure 1 、 Figure 2 The inner wall of the bottom plate 2 is fixedly connected with a guide piece 94, which is slidably connected to the oblique block 93. By setting the guide piece 94, the oblique block 93 can be guided. One end of the connecting spring 97 is welded to the fixed plate 95, and the other end of the connecting spring 97 is welded to the horizontal part of the telescopic plate 96. By setting the connecting spring 97, the telescopic plate 96 can be connected and used. The suction cup 98 is slidably connected to the bottom plate 2. The suction cup 98 is made of rubber. By setting the suction cup 98, the stability of the bottom plate 2 can be improved, and the rubber material has a good deformation effect.

[0030] The specific implementation process of the utility model is as follows: During use, the base plate 2, verticality measuring plate 1 3, and verticality measuring plate 2 4 are connected by connecting components 7. The verticality between the connected base plate 2, verticality measuring plate 1 3, and verticality measuring plate 2 4 is checked to be maintained within 0.05mm. A 15mm rectangular light source hole 8 is opened in the middle of the combined surface of verticality measuring plate 1 3 and verticality measuring plate 2 4 for light illumination. The spring cluster 1 to be tested is placed on the base plate 2, with the lower gasket of the spring cluster 1 against the verticality measuring plate 1 3 and verticality measuring plate 2 4. The dial indicator 6 is installed on the dial indicator support plate 5. The compression of the dial indicator 6 is adjusted to approximately 4-5mm, and the pointer of the dial indicator 6 is set to zero.

[0031] The micro motor 91 is started to drive the output shaft to rotate, thereby driving the screw 92 to rotate. Under the relationship of the threaded connection, the inclined block 93 can be driven to move, so that the inclined block 93 moves along the surface of the guide piece 94 to ensure the stable movement of the inclined block 93, and then the inclined block 93 moves along the surface of the telescopic plate 96, squeezing the telescopic plate 96. Under the action of the height difference of the inclined surface of the inclined block 93, the telescopic plate 96 can be pushed downward, and the connecting spring 97 is deformed, and finally the telescopic plate 96 drives the suction cup 98 to move, and then the suction cup 98 contacts the placement table of the tooling, adsorbs and fixes the table to ensure the stable placement of the tooling;

[0032] By illuminating the rectangular light source hole 8 on the combined surface of the verticality measuring plate 1 3 and the verticality measuring plate 2 4 with a light source, check the gap between the gasket on the spring cluster 1 and the verticality measuring plate 1 3 and the verticality measuring plate 2 4. The spring cluster 1 can be rotated 90° to check the gap between the gasket on the spring cluster 1 and the verticality measuring plate 1 3 and the verticality measuring plate 2 4. If both gaps are zero, the verticality of the spring cluster 1 meets the requirements. If the gap is larger, use a feeler gauge to measure the gap between the gasket on the spring cluster 1 and the verticality measuring plate 1 3 and the verticality measuring plate 2 4 to check the verticality deviation of the spring cluster 1.

[0033] After installing dial indicator 6 on dial indicator support plate 5, use an outside micrometer to measure the zero-position test block for the height of spring cluster 1. Use the test block to adjust dial indicator 6 to approximately 4-5mm of compression, returning the dial indicator 6 pointer to zero. Once spring cluster 1 is in place, rotate the dial indicator 6 pointer 360°. The dial indicator 6 pointer reading is the height of spring cluster 1.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A measuring tool for a thrust bearing spring cluster of a hydro-generator set, comprising a base plate (2), characterized in that: The upper end of the base plate (2) contacts the first verticality measuring plate (3), the upper end of the base plate (2) contacts the second verticality measuring plate (4), the second verticality measuring plate (4) and the first verticality measuring plate (3) contact each other, the middle of the upper end of the base plate (2) contacts the spring cluster (1), the spring cluster (1) contacts the second verticality measuring plate (4), and the spring cluster (1) contacts the first verticality measuring plate (3); A dial indicator support plate (5) is provided at the upper end of the verticality measuring plate 2 (4), a dial indicator (6) is provided inside the dial indicator support plate (5), a connecting component (7) is provided inside the base plate (2), a rectangular light source hole (8) is provided in the middle of the surface of the verticality measuring plate 2 (4) and the verticality measuring plate 1 (3), and a stabilizing mechanism (9) is provided inside the base plate (2).

2. The hydraulic generator thrust bearing spring cluster measuring tool according to claim 1, characterized in that: The connecting component (7) contacts the second verticality measuring plate (4), and the connecting component (7) contacts the first verticality measuring plate (3).

3. The hydraulic generator thrust bearing spring cluster measuring tool according to claim 1, characterized in that: The stabilizing mechanism (9) comprises a micro motor (91), the inner side wall of the base plate (2) is fixedly mounted with the micro motor (91), the output shaft of the micro motor (91) is fixedly connected with a screw rod (92), the outer side of the screw rod (92) is connected with an inclined block (93) by a thread, the inclined block (93) is slidably connected with the base plate (2), the inner wall of the base plate (2) is fixedly connected with a fixed plate (95), the inner wall of the fixed plate (95) is slidably connected with a telescopic plate (96), the vertical portion of the telescopic plate (96) contacts the inclined block (93), the outer side of the telescopic plate (96) is provided with a connecting spring (97), and the horizontal portion of the telescopic plate (96) is fixedly connected with a suction cup (98).

4. The hydraulic generator thrust bearing spring cluster measuring tool according to claim 3, characterized in that: A guide piece (94) is fixedly connected to the inner wall of the bottom plate (2), and the guide piece (94) is slidably connected to the inclined block (93).

5. The hydraulic generator thrust bearing spring cluster measuring tool according to claim 3, characterized in that: One end of the connecting spring (97) is welded to the fixed plate (95), and the other end of the connecting spring (97) is welded to the horizontal portion of the telescopic plate (96).

6. The hydraulic generator thrust bearing spring cluster measuring tool according to claim 3, characterized in that: The suction cup (98) is slidably connected to the bottom plate (2), and the suction cup (98) is made of rubber.