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CN-224216025-U - Auxiliary tool for centering shaft coupling of steam turbine and generator

CN224216025UCN 224216025 UCN224216025 UCN 224216025UCN-224216025-U

Abstract

The utility model belongs to the technical field of measuring tools and discloses an auxiliary tool for centering a turbine and a generator coupler, which comprises a connecting rod body, an installation rod body, an axial dial indicator and a radial dial indicator, wherein one end of the connecting rod body is connected with the generator coupler through a first connecting piece, one end of the installation rod body is connected with the connecting rod body, the other end of the installation rod body extends from the end part of the turbine coupler to the periphery of the turbine coupler so as to extend into a gap between the turbine coupler and a box body, and the axial dial indicator and the radial dial indicator are arranged on the installation rod body. The auxiliary fixture for centering the steam turbine and the generator coupler is characterized in that the connecting rod body is installed on the generator coupler through the first connecting piece, one end of the installation rod body, far away from the connecting rod body, extends to the steam turbine coupler, and the axial dial indicator and the radial dial indicator installed on the installation rod body can directly measure the position of the steam turbine coupler relative to the axial direction and the radial direction of the generator coupler, so that the auxiliary fixture is simple in structure and high in measurement accuracy.

Inventors

  • ZHU JIA
  • HUANG HAIBING
  • SHEN YADONG

Assignees

  • 江苏沙钢钢铁有限公司
  • 江苏沙钢集团有限公司

Dates

Publication Date
20260508
Application Date
20250527

Claims (10)

  1. 1. Auxiliary fixtures is looked for center to steam turbine and generator shaft coupling, its characterized in that includes: The connecting rod body (1), one end of the connecting rod body (1) is connected with the generator coupler (100) through a first connecting piece, and the other end extends to the end part of the turbine coupler (200) towards the turbine coupler (200) along the axial direction of the generator coupler (100); The installation rod body (2), one end of the installation rod body (2) is connected with one end of the connection rod body (1) positioned at the end part of the turbine coupler (200), and the other end of the installation rod body extends from the end part of the turbine coupler (200) to the periphery of the turbine coupler (200) so as to extend into a gap between the turbine coupler (200) and the box body; The axial dial gauge (3) and the radial dial gauge (4), wherein the axial dial gauge (3) and the radial dial gauge (4) are arranged on the mounting rod body (2) and used for detecting the position of the steam turbine coupler (200) relative to the axial direction and the radial direction of the generator coupler (100).
  2. 2. The auxiliary fixture for centering the coupling of the steam turbine and the generator according to claim 1, wherein the connecting rod body (1) and the mounting rod body (2) are all in an L-shaped arrangement.
  3. 3. The auxiliary tool for centering the coupling of the steam turbine and the generator according to claim 2, wherein the connecting rod body (1) comprises a first connecting rod (11) and a second connecting rod (12), and one end of the first connecting rod (11) is vertically connected with one end of the second connecting rod (12).
  4. 4. A turbine and generator coupling centering aid according to claim 3, wherein the first connecting piece comprises a first fixing screw (5), a mounting hole (51) is formed in the first connecting rod (11), and the first fixing screw (5) penetrates through the mounting hole (51) to be connected with the generator coupling (100).
  5. 5. A turbine and generator coupling centering aid according to claim 3, wherein the mounting rod body (2) comprises a first mounting rod (21) and a second mounting rod (22), one end of the first mounting rod (21) is vertically connected with one end of the second mounting rod (22), the other end is vertically connected with one end of the second connecting rod (12) away from the first connecting rod (11), and at least the diameter of the second mounting rod (22) is smaller than the gap between the turbine coupling (200) and the box body.
  6. 6. The auxiliary fixture for centering the coupling of the steam turbine and the generator according to claim 5, wherein the first connecting rod (11), the second connecting rod (12), the first mounting rod (21) and the second mounting rod (22) are integrally formed.
  7. 7. The auxiliary tool for centering the coupling of the steam turbine and the generator according to claim 5, wherein any two adjacent first connecting rods (11), second connecting rods (12), first mounting rods (21) and second mounting rods (22) are detachably connected.
  8. 8. The auxiliary fixture for centering the coupling of the steam turbine and the generator according to claim 7, wherein screw holes (71) are formed in two ends of the first connecting rod (11) and the first mounting rod (21), and threaded rods (7) are arranged on the circumferential sides of the end parts of the second connecting rod (12) and the second mounting rod (22).
  9. 9. The auxiliary tool for centering the coupling of the steam turbine and the generator according to claim 6 or 7, wherein the first mounting rod (21) and the second mounting rod (22) are radially penetrated and provided with an adjusting groove (8) extending along the length direction, the axial dial indicator (3) and the radial dial indicator (4) are provided with second connecting pieces, the axial dial indicator (3) is mounted on the first mounting rod (21) through the second connecting pieces, and the radial dial indicator (4) is mounted on the second mounting rod (22) through the second connecting pieces.
  10. 10. The auxiliary tool for centering the coupling of the steam turbine and the generator according to claim 9, wherein the second connecting piece comprises a second fixing screw (6) and a nut (61), the head of the second fixing screw (6) is connected with the axial dial indicator (3) or the radial dial indicator (4), the rod part of the second fixing screw (6) is arranged in the adjusting groove (8) in a penetrating way, and the nut (61) is in threaded connection with the second fixing screw (6) and is abutted to the periphery of the first mounting rod (21) or the second mounting rod (22).

Description

Auxiliary tool for centering shaft coupling of steam turbine and generator Technical Field The utility model relates to the technical field of measurement tools, in particular to a centering auxiliary tool for a coupling of a steam turbine and a generator. Background The steam turbine is designed for a combined cycle unit, improves the heat efficiency of the whole system by recovering the waste heat in the power generation process, and is particularly excellent in some industrial production processes requiring a large amount of heat energy and electric energy. In the related art, the combined cycle turbine is compact in structure, a shaft coupler is used for connecting the turbine and a generator into a shaft system, the shaft system is required to be accurately aligned and centered during installation, gaps between an operation part and a static part during operation are ensured to be within a specified range, and abnormal vibration caused by friction of equipment during operation is avoided. During actual operation, as the steam turbine generator unit and the generator coupling are arranged in the bearing box body, the clearance between the inner wall of the box body and the steam turbine coupling is narrow, the universal dial indicator mounting seat is difficult to set up, the dial indicator mounting seat is unstable and easy to shake, and the measured data is deviated. Therefore, it is needed to design a new auxiliary tool for centering the coupling of the steam turbine and the generator to solve the above problems. Disclosure of utility model The utility model aims to provide a centering auxiliary tool for a coupling of a steam turbine and a generator, which aims to solve the technical problems that a universal dial indicator mounting seat is difficult to set up, the dial indicator mounting seat is unstable to set up and easy to shake, and measurement data are deviated. To achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a centering auxiliary tool for a coupling of a steam turbine and a generator, which comprises the following components: The connecting rod body is connected with the generator coupler through a first connecting piece at one end, and the other end extends to the end part of the turbine coupler towards the turbine coupler along the axial direction of the generator coupler; the installation rod body is connected with one end of the connection rod body positioned at the end part of the steam turbine coupler, and the other end of the installation rod body extends from the end part of the steam turbine coupler to the periphery of the steam turbine coupler so as to extend into a gap between the steam turbine coupler and the box body; The axial dial indicator and the radial dial indicator are arranged on the mounting rod body and used for detecting the position of the steam turbine coupler relative to the axial direction of the generator coupler and the position of the radial direction. Install the connecting rod body on generator shaft coupling through first connecting piece, the one end that the connecting rod body was kept away from to the installation body of rod extends to the turbine shaft coupling, and axial percentage table and radial percentage table of installing on the installation body of rod can directly measure turbine shaft coupling for the axial direction and the radial direction's of generator shaft coupling position, need not to set up the percentage table mount pad, simple structure and measurement accuracy height. As a preferable scheme of the auxiliary tool for centering the coupler of the steam turbine and the generator, the connecting rod body and the mounting rod body are all L-shaped. The installation of connecting rod body and generator shaft coupling can be accomplished from the terminal surface that the generator shaft coupling kept away from the steam turbine shaft coupling to operating personnel, and operable space is big, easy to assemble. As a preferable scheme of the auxiliary tool for centering the coupling of the steam turbine and the generator, the connecting rod body comprises a first connecting rod and a second connecting rod, and one end of the first connecting rod is vertically connected with one end of the second connecting rod. As a preferable scheme of the auxiliary centering tool for the steam turbine and the generator coupler, the first connecting piece comprises a first fixing screw, a mounting hole is formed in the first connecting rod, and the first fixing screw penetrates through the mounting hole and is connected with the generator coupler. The rod part of the first fixing screw penetrates through the mounting hole and is connected to the generator coupler through threads until the head part of the first fixing screw is kept in tight contact with the end face of the generator coupler, and the structure is simple, and the installation and the disassembly are convenient. As a preferable sche