A generator collector ring installation coaxiality measuring tool

Abstract

The application discloses a generator collecting ring installation coaxiality measuring tool. Mainly includes: guide rod, guide, cross sleeve, measuring rod, table seat, table clamp, dial indicator, key handle screw, butterfly screw; the guide rod passes through two sets of guides and is fixedly connected through the butterfly screw, the guide rod and the measuring rod pass through the cross sleeve and are fixedly connected through the butterfly screw, one end of the table seat is fixedly connected with the measuring rod through the butterfly screw, the other end of the table seat is fixedly connected with one end of the table clamp through the key handle screw, and the supporting rod of the dial indicator is fixedly connected with the middle portion of the other end of the table clamp through the key handle screw. The generator collecting ring installation coaxiality measuring tool is simple in structure, convenient to operate, can quickly and accurately measure the coaxiality of the shaft system, and can be widely used on a large scale.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of installation of hydroelectric generating units, and particularly relates to a tool for measuring the coaxiality of a generator ring. BACKGROUND

[0002] In a unit with a disc wheel tool installed at the top end of the generator shaft, the installation of the ring needs to be carried out after the unit is disc-wheeled, and the coaxiality of the ring and the generator shaft is usually measured by hanging piano wire and using an inside micrometer to measure the distance. SUMMARY

[0003] The present application aims to solve the problem of the conventional coaxiality measurement and adjustment process of the ring and the generator shaft, which is complicated, time-consuming and labor-intensive, and the measurement accuracy is affected by the arc surface of the parts and the hanging position of the piano wire, and the measurement error is large.

[0004] To solve the above technical problems, the present application provides a tool for measuring the coaxiality of the installation of the generator ring, which comprises a guide rod, a guide piece, a cross sleeve, a measuring rod, a table seat, a table clamp, a dial indicator, a wrench screw, and a butterfly screw.

[0005] Further, the guide piece comprises a concave plate, a sleeve, a pin shaft, a spherical bearing, and a snap spring.

[0006] Further, the pin shaft is a three-segment cylindrical structure, and the cylindrical A has a half-thread hole, and the cylindrical B has a recess at the end.

[0007] Further, the measuring rod is a tubular structure, and the end of the measuring rod has a through hole and a threaded hole perpendicular to the through hole.

[0008] Further, the cross sleeve includes: sleeve A and sleeve B, the sleeve A and sleeve B are fixedly connected in cross, two threaded holes with 90° included angle are opened on the middle circumference of the sleeve A, two threaded holes with 90° included angle are opened on the middle circumference of the sleeve B.

[0009] Further, the lower end of the table seat is a cylindrical structure, and the upper end is connected by a clamping groove, a circular hole and a threaded hole.

[0010] Further, one end of the table clamp is a rectangular structure and has a through hole at the end position, the other end is a similar cylindrical structure and has a large through hole at the bottom position, a clamping groove, a small through hole and a threaded hole are opened at the top position, and the clamping groove is connected with the small through hole and the threaded hole.

[0011] The generator ring installation coaxial degree measuring tool has two spherical bearings to adapt to different sizes of cylindrical surfaces, the distance between the two guide pieces is adjusted according to the need and is always in close contact with the cylindrical surface to complete the positioning of the guide rod; the measuring system on the guide rod adjusts the height and radial distance according to the need, so that the dial gauge probe contacts the measured object, and the guide rod between the guide pieces is pushed to rotate along the circumferential surface, and the coaxiality deviation value at different positions is read by the dial gauge. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, other drawings can also be obtained by those skilled in the art without creative labor.

[0013] Figure 1 is a three-dimensional structure schematic diagram of a generator ring installation coaxiality measuring tool.

[0014] Figure 2 is a structure schematic diagram of a guide piece of a generator ring installation coaxiality measuring tool.

[0015] Figure 3 is a structure schematic diagram of a cross sleeve of a generator ring installation coaxiality measuring tool.

[0016] Figure 4 is a structure schematic diagram of a pin shaft of a generator ring installation coaxiality measuring tool.

[0017] Figure 5 is a structure schematic diagram of a table support of a generator ring installation coaxiality measuring tool.

[0018] Figure 6 It is a structure diagram of a table clamp of a generator collector ring installation coaxial degree measuring tool.

[0019] Figure 7 It is a use state diagram of a generator collector ring installation coaxial degree measuring tool.

[0020] In the figure: 1 - guide rod, 2 - guide, 21 - concave plate, 22 - sleeve, 23 - pin shaft, 24 - spherical bearing, 25 - clamp spring, 231 - cylinder A, 232 - cylinder B, 3 - cross sleeve, 31 - sleeve A, 32 - sleeve B, 4 - measuring rod, 5 - table seat, 51 - clamping groove, 52 - round hole, 53 - screw hole, 6 - table clamp, 61 - large hole, 62 - threaded hole, 63 - clamping groove, 64 - small hole, 7 - dial gauge, 8 - wrench screw, 9 - butterfly screw, 10 - thrust head, 11 - collector ring. DETAILED DESCRIPTION

[0021] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "welding", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or direct connection, or indirect connection through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] As shown in Figure 1 -6, a generator collector ring installation coaxial degree measuring tool, comprising: guide rod 1, guide 2, cross sleeve 3, measuring rod 4, table seat 5, table clamp 6, dial gauge 7, wrench screw 8, butterfly screw 9, the guide rod 1 passes through two sets of guide 2 and is fixedly connected through butterfly screw 9, the guide rod 1 and the measuring rod 4 pass through the cross sleeve 3 and are fixedly connected through the butterfly screw 9, one end of the table seat 5 is fixedly connected with the measuring rod 4 through the butterfly screw 9, the other end of the table seat 5 is fixedly connected with one end of the table clamp 6 through the wrench screw 8, the supporting rod of the dial gauge 7 passes through the other end of the table clamp 6 and is fixedly connected through the wrench screw 8.

[0023] Preferably, the guide 2 comprises: concave plate 21, sleeve 22, pin shaft 23, spherical bearing 24, clamp spring 25, the concave plate 21 is provided with three through holes of one large and two small, and half of the threaded holes are respectively provided on the circumferential edges of the two small holes, the large hole of the concave plate 21 is fixedly connected with the sleeve 22, the spherical bearing 24 is installed to one end of the pin shaft 23 and is fixedly and stably connected through the clamp spring 25, the other end of the pin shaft 23 is fixedly connected with the concave plate 21.

[0024] More preferably, the pin shaft 23 is a three-section cylindrical structure, with a half-threaded hole in the cylindrical section A 231 and a groove at the end of the cylindrical section B 232.

[0025] Preferably, the measuring rod 4 is a tube structure, with a through hole at the end and a half-threaded hole (M6) perpendicular to the through hole.

[0026] Preferably, the cross sleeve 3 comprises a sleeve A 31 and a sleeve B 32, which are fixedly connected in a cross shape (welded), with two threaded holes (M6) at a 90° angle on the circumference of the middle section of the sleeve A 31 and two threaded holes (M6) at a 90° angle on the circumference of the middle section of the sleeve B 32.

[0027] Preferably, the base 5 is a cylindrical structure at the lower end, and is connected by a clamping groove 51, a round hole 52, and a threaded hole 53 at the upper end.

[0028] Preferably, the watch holder 6 is a rectangular structure at one end, with a through hole 65 at the end, and is a similar cylindrical structure at the other end, with a large through hole 61 at the bottom, a clamping groove 63, a small through hole 64, and a threaded hole 62 at the top, with the clamping groove 63 connected to the small through hole 64 and the threaded hole 62.

[0029] Before use, first, install a guide 2 to the end of the guide rod 1 and fix it with a butterfly screw 9, and then place the assembled guide 2 at the bottom of the boss surface of the thrust head 10 and make the two spherical bearings 24 close to the cylindrical surface; then, adjust the other guide 2 to the appropriate height, adjust the two spherical bearings 24 of the guide 2 to be close to the cylindrical surface of the thrust head 10; then, confirm that the spherical bearings 24 of the two guides 2 are close to the cylindrical surface and fix them with the butterfly screw 9; then, align the pointer of the dial gauge 7 with the outer cylindrical surface of the current collector ring 11, adjust the small hand of the dial gauge 7 to align with the 5.0mm scale, and adjust the large hand to the 0 scale, and finally fix it with a screw.

[0030] When in use, hold the guide rod 1 with your hand, and make the lower guide 2 slide on the boss surface of the thrust head 10, and make the spherical bearings 24 of the two guides 2 close to the cylindrical surface of the thrust head 10 during the movement, and observe and record the readings of the dial gauge 7 to complete the measurement work.

[0031] The above describes the specific embodiments of the present application in combination with the drawings, but is not limited to the protection scope of the present application. Those of ordinary skill in the art should understand that non-creative modifications or equivalent replacements of the technical solutions of the present application without departing from the protection scope of the present technical solutions should be covered in the scope of the claims of the present application.

Claims

1. A generator collector ring installation coaxiality measuring tool characterized by, Include: The guide rod (1), the guide (2), the cross sleeve (3), the measuring rod (4), the table seat (5), the table clamp (6), the dial indicator (7), the key handle screw (8), the butterfly screw (9), the guide rod (1) passes through two sets of guide (2) and is fixedly connected through butterfly screw (9), the guide rod (1) and the measuring rod (4) pass through the cross sleeve (3) and are fixedly connected through butterfly screw (9), one end of the table seat (5) is fixedly connected with the measuring rod (4) through butterfly screw (9), the other end of the table seat (5) is fixedly connected with one end of the table clamp (6) through the key handle screw (8), the supporting rod of the dial indicator (7) passes through the other end of the table clamp (6) and is fixedly connected through the key handle screw (8);The guide (2) includes: concave plate (21), sleeve (22), pin shaft (23), spherical bearing (24), snap spring (25), the concave plate (21) is provided with three through holes of one large and two small and half threaded holes are formed on the circumferential edges of the two small holes respectively, the large hole of the concave plate (21) is fixedly connected with the sleeve (22), the spherical bearing (24) is installed to one end of the pin shaft (23) and is fixedly connected with the concave plate (21) through the snap spring (25), the other end of the pin shaft (23) is fixedly connected with the concave plate (21);The pin shaft (23) is a three-section cylindrical structure, a half threaded hole is formed in the cylindrical A (231), and a recess is formed in the end of the cylindrical B (232);The measuring rod (4) is a tubular structure, a through hole and a threaded hole perpendicular to the through hole are formed in the end of the measuring rod (4);The cross sleeve (3) includes: sleeve A (31), sleeve B (32), the sleeve A (31) and the sleeve B (32) are fixedly connected in a cross shape, two threaded holes with a 90° included angle are formed on the circumferences of the middle portions of the sleeve A (31) and the sleeve B (32).

2. A generator ring installation concentricity measuring tool according to claim 1, characterized in that: The lower end of the table seat (5) is a cylindrical structure, and the upper end is connected by a clamping groove (51), a circular hole (52) and a threaded hole (53), and the clamping groove (51) is connected with the circular hole (52) and the threaded hole (53) respectively.

3. The generator ring installation concentricity measuring tool of claim 1, wherein, One end of the table clamp (6) is a rectangular structure and is provided with a through hole (65) at the end position, the other end is a similar cylindrical structure and is provided with a large through hole (61) at the bottom position, a clamping groove (63), a small through hole (64) and a threaded hole (62) at the top position, and the clamping groove (63) is connected with the small through hole (64) and the threaded hole (62) respectively.

Images