Mechanical turning tool for large vertical water-turbine generator set

Abstract

The utility model relates to the technical field of hydraulic generator turning equipment, in particular to a mechanical turning tool for a large vertical hydraulic generator set, which is mounted on a top shaft of a vertical hydraulic generator and used for driving the top shaft of the vertical hydraulic generator to rotate. The turning tool comprises a center body, a plurality of supporting arms and a plurality of push rods, the center body is fixedly connected with the top face of a top shaft of the vertical hydro-generator, the supporting arms are installed on the center body at intervals in the circumferential direction of the center body and used for installing the push rods, the supporting arms correspond to the push rods in a one-to-one mode, and the push rods are installed on the corresponding supporting arms. The jigger tool is divided into the center body, the supporting arms and the push rod, split type design is achieved, the jigger tool is convenient to assemble and disassemble, and the push rod can be disassembled when the jigger tool is not used, so that the push rod is prevented from hindering walking of maintainers.

Description

Technical Field

[0001] The utility model relates to the technical field of hydro-turbine generator turning equipment, in particular to a mechanical turning tool for a large vertical hydro-turbine generator set. Background Art

[0002] Adjusting the axis of the unit through turning is an important part of the installation process of the hydro-turbine generator set. The quality of the axis of the unit directly affects the installation quality and overall performance of the unit. At present, the purpose of turning during the installation stage of the unit in the hydro-turbine power generation field is to make the entire axis of the hydro-turbine generator set rotate at a fixed center, and measure the entire axis through a dial indicator. Therefore, according to the structural characteristics of the vertical hydro-turbine generator set, it is necessary to make a set of mechanical turning tools with simple structure, low economic cost and easy operation.

[0003] The patent number is "CN201320416502.3", and the name is "Hydrogenerator Turning Tool". It includes arm I, arm II, arm III, and arm IV evenly distributed on the circumference of the disc and welded to the disc as a whole; the ends of arm I, arm II, arm III, and arm IV are respectively welded with turning columns I, turning columns II, turning columns III, and turning columns IV; turning columns I, turning columns II, turning columns III, and turning columns IV are located on the same circumference centered on the center point of the disc. However, it is an integrated design as a whole, and its use requires the overall turning tool to be installed on the top shaft of the generator. On the one hand, it is inconvenient to disassemble, and on the other hand, when idle, its arm structure affects the movement of maintenance personnel and takes up space. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in order to overcome the problem that the turning tool in the prior art is an integrated design, the use of which requires the integral turning tool to be installed on the top shaft of the generator, which is inconvenient to disassemble.

[0005] On the other hand, when idle, its arm structure affects the movement of maintenance personnel and occupies space. In order to solve the problem, a mechanical turning tool for a large vertical hydro-turbine generator set is provided.

[0006] The utility model solves the technical problem by adopting a technical solution: a large vertical hydro-turbine generator set mechanical turning tool, the turning tool is installed on the top shaft of the vertical hydro-turbine generator, the turning tool is used to drive the top shaft of the vertical hydro-turbine generator to rotate,

[0007] The turning tool comprises a center body, a plurality of supporting arms and a plurality of push rods. The center body is fixedly connected to the top surface of the top shaft of the vertical hydro-turbine generator. The supporting arms are installed on the center body at intervals along the circumference of the center body. The supporting arms are used for installing the push rods. The supporting arms and the push rods correspond to each other one by one. The push rods are installed on their corresponding supporting arms. The turning tool is divided into three parts: the center body, the supporting arms and the push rods, realizing a split design. The turning tool is easy to assemble and disassemble, and the push rods can be removed when idle to avoid obstructing the movement of maintenance personnel.

[0008] In order to solve the problem of difficulty in assembling the central body, the central body further includes an upper disc body, a cylinder wall and a lower disc body, the bottom surface of the upper disc body and the top surface of the cylinder wall are fixedly connected, the bottom surface of the cylinder wall and the top surface of the lower disc body are fixedly connected, and the lower disc body and the top shaft of the vertical turbine generator are fixedly connected.

[0009] In order to solve the problem of inconvenient movement and installation of the central body, the central body further includes a lifting lug, the lifting lug is used for being hooked by a lifting device, and the lifting lug is fixedly connected to the top surface of the upper plate body.

[0010] In order to solve the problem of low assembly efficiency of the support arm and the push rod, the support arm further includes a wing plate and a sleeve for accommodating the push rod, the wing plate and the center body are fixedly connected, the sleeve and the wing plate are fixedly connected, and the push rod is inserted into the corresponding sleeve.

[0011] In order to solve the problem of low structural strength of the support arm, the support arm further includes a first reinforcing rib and a plurality of second reinforcing ribs, the first reinforcing rib is fixedly connected to the wing plate, the extension direction of the first reinforcing rib is the radial direction of the center body, the second reinforcing rib is fixedly connected to the wing plate, and the first reinforcing rib and the second reinforcing rib intersect.

[0012] The beneficial effect of the utility model is that the utility model provides a large vertical hydro-turbine generator set mechanical turning tool, which divides the turning tool into three parts: a central body, a support arm and a push rod, realizing a split design, making the turning tool easy to assemble and disassemble, and the push rod can be removed when idle to avoid it hindering the movement of maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a structural schematic diagram of the mechanical turning tool of the utility model;

[0015] Figure 2 It is a schematic diagram of the top view of the mechanical turning tool of the utility model;

[0016] Figure 3 This is a schematic diagram of the central body structure of the mechanical turning tool of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the support arm of the mechanical turning tool of the utility model.

[0018] In the figure: 1, top shaft of vertical turbine generator, 2, center body, 21, upper plate, 22, cylinder wall, 23, lower plate, 24, lifting lug, 3, support arm, 31, wing plate, 32, sleeve, 33, first reinforcing rib, 34, second reinforcing rib, 4, push rod. DETAILED DESCRIPTION

[0019] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0020] like Figure 1 This is a schematic diagram of the structure of the utility model, a mechanical turning tool for a large vertical hydro-turbine generator set, the turning tool is installed on the top shaft 1 of the vertical hydro-turbine generator, and the turning tool is used to drive the top shaft 1 of the vertical hydro-turbine generator to rotate.

[0021] like Figure 1 , Figure 2 As shown, the turning tool includes a center body 2, a plurality of support arms 3 and a plurality of push rods 4. The center body 2 is fixedly connected to the top surface of the top shaft 1 of the vertical turbine generator. The support arms 3 are installed on the center body 2 at intervals along the circumference of the center body 2. The support arms 3 are used for installing the push rods 4. The support arms 3 and the push rods 4 correspond one to one, and the push rods 4 are installed on the corresponding support arms 3.

[0022] like Figure 2 , Figure 3 As shown, the central body 2 includes an upper disk body 21, a cylinder wall 22 and a lower disk body 23. The upper disk body 21, the cylinder wall 22 and the lower disk body 23 are welded together. The bottom surface of the upper disk body 21 and the top surface of the cylinder wall 22 are fixedly connected, the bottom surface of the cylinder wall 22 and the top surface of the lower disk body 23 are fixedly connected, and the lower disk body 23 is fixedly connected to the top shaft 1 of the vertical turbine generator. The central body 2 provides a connection for the top shaft 1 of the turbine generator. The lower disk body 23 of the central body 2 is fixedly connected to the top shaft 1 of the turbine generator by bolts, so that the central body 2 is easy to disassemble and assemble.

[0023] The central body 2 includes a lifting lug 24, which is used for being hooked by a lifting device. The lifting lug 24 is fixedly connected to the top surface of the upper disk body 21. The lifting lug 24 has a lifting hole for being hooked by a hook. The top surface of the upper disk body 21 has two lifting lugs 24 arranged at intervals. The present application does not make any specific limitation on the number of the lifting lugs 24.

[0024] like Figure 2 , Figure 4As shown, the support arm 3 includes a wing plate 31 and a sleeve 32 for accommodating the push rod 4. The wing plate 31 and the sleeve 32 can be fixed by welding or locked by threaded connectors. The wing plate 31 extends radially along the center body 2. The wing plate 31 extends outward from the center body 2 and is in a gradually contracted state. The wing plate 31 is fixedly connected to the center body 2, and the sleeve 32 is fixedly connected to the wing plate 31. The sleeve 32 is a hollow columnar structure. The port of the sleeve 32 close to one end of the center body 2 is a closed port, and the port of the sleeve 32 away from the end of the center body 2 is an open port. The open port is used for the push rod 4 to pass through. The push rod 4 is inserted in the corresponding sleeve 32, and the inner diameter of the cavity of the sleeve 32 matches the outer diameter of the push rod 4.

[0025] like Figure 2 , Figure 4 As shown, the support arm 3 also includes a first reinforcing rib 33 and a plurality of second reinforcing ribs 34. The first reinforcing rib 33 is fixedly connected to the wing plate 31. The extension direction of the first reinforcing rib 33 is the radial direction of the center body 2. The second reinforcing rib 34 is fixedly connected to the wing plate 31. The first reinforcing rib 33 and the second reinforcing rib 34 intersect with each other. Four second reinforcing ribs 34 are arranged on the wing plate 31 at intervals, and they gradually decrease in the direction away from the center body 2. Through the design of the first reinforcing rib 33 and the second reinforcing rib 34, the overall structural strength of the support arm 3 can be increased to avoid bending due to excessive bearing force.

[0026] like Figure 1 As shown, the push rod 4 is a φ60×5mm steel pipe, one end of which is installed in the sleeve 32, and the outer end surface of the steel pipe is rolled with a pattern to prevent slipping when human power is applied.

[0027] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A mechanical turning tool for a large vertical hydro-turbine generator set, characterized in that: The turning tool is mounted on the top shaft (1) of the vertical hydro-turbine generator, and is used to drive the top shaft (1) of the vertical hydro-turbine generator to rotate. The turning tool comprises a central body (2), a plurality of supporting arms (3) and a plurality of push rods (4); the central body (2) is fixedly connected to the top surface of a top shaft (1) of a vertical turbine generator; the supporting arms (3) are installed on the central body (2) at intervals along the circumference of the central body (2); the supporting arms (3) are used for installing the push rods (4); the supporting arms (3) and the push rods (4) correspond one to one, and the push rods (4) are installed on the corresponding supporting arms (3); The central body (2) comprises an upper disc body (21), a cylinder wall (22) and a lower disc body (23); the bottom surface of the upper disc body (21) is fixedly connected to the top surface of the cylinder wall (22); the bottom surface of the cylinder wall (22) is fixedly connected to the top surface of the lower disc body (23); and the lower disc body (23) is fixedly connected to the top shaft (1) of the vertical turbine generator; The central body (2) comprises a lifting lug (24), the lifting lug (24) is used for being hooked by a lifting device, and the lifting lug (24) is fixedly connected to the top surface of the upper plate body (21); The support arm (3) comprises a wing plate (31) and a sleeve (32) for accommodating a push rod (4); the wing plate (31) is fixedly connected to the central body (2); the sleeve (32) is fixedly connected to the wing plate (31); and the push rod (4) is inserted into the corresponding sleeve (32); The support arm (3) further comprises a first reinforcing rib (33) and a plurality of second reinforcing ribs (34); the first reinforcing rib (33) is fixedly connected to the wing plate (31); the first reinforcing rib (33) extends in a radial direction of the central body (2); the second reinforcing rib (34) is fixedly connected to the wing plate (31); and the first reinforcing rib (33) and the second reinforcing rib (34) intersect.

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