CN214582911U

CN214582911U - Gas turbine shaft coupling centering frock combination

Info

Publication number: CN214582911U
Application number: CN202023103973.8U
Authority: CN
Inventors: 白冰; 栾永军; 孔庆毅; 裴勇; 任博铖
Original assignee: Harbin Guanghan Gas Turbine Co ltd
Current assignee: Harbin Guanghan Gas Turbine Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-11-02
Anticipated expiration: 2030-12-22

Abstract

An object of the utility model is to provide a gas turbine shaft coupling centering frock combination, including centering frock unit, centering frock unit includes the gauge stick, elasticity centering frame, the gauge stick includes well core rod, interior adapter sleeve, outer tube, spring, position sleeve, outer adapter sleeve, percentage table fixed sleeve, interior adapter sleeve, outer tube and outer adapter sleeve link to each other in proper order and constitute gauge stick casing part, outer adapter sleeve inner wall is fixed with the position sleeve, well core rod sets up in the inside of gauge stick casing part, set up the arch on the well core rod, the spring suit is outside well core rod, the position of spring is located between arch and position sleeve, the percentage table fixed sleeve is fixedly installed through locking screw in outer adapter sleeve rear; the centering tool units comprise two or more than two, and elastic centering frames of different centering tool units are located at different positions of the elastic shaft. The utility model discloses can satisfy the on-the-spot centering in-process of gas turbine, the measurement of shaft coupling both ends terminal surface opening numerical value is particularly useful for the centering inspection in smart centering and unit fortune dimension stage.

Description

Gas turbine shaft coupling centering frock combination

Technical Field

The utility model relates to a centering frock, specifically speaking are gas turbine shaft coupling centering frock.

Background

At present, in the installation and centering process of a gas turbine coupling, three parts of contents are mainly involved: checking the centering state of the coarse centering, the fine centering and the later operation and maintenance stage. The tool used for centering inspection mainly comprises a magnetic gauge seat for mounting a dial indicator and a laser centering instrument.

The magnetic gauge stand provided with the dial indicator is wide in practical centering application, but is limited more in the using process, and cannot be stably fixed on the curved surface of the coupler or the elastic shaft, so that the reading of the dial indicator is influenced, and the centering result is further influenced. The laser centering instrument has high cost, related dimension parameters need to be accurately input in the centering process, the setting and measuring processes are complicated, and the centering inspection in the later operation and maintenance stage is limited.

Disclosure of Invention

An object of the utility model is to provide a gas turbine shaft coupling centering frock combination of measuring is carried out in the offset of accurate centering or unit fortune dimension stage centering inspection process.

The purpose of the utility model is realized like this:

the utility model relates to a gas turbine shaft coupling centering frock combination, characterized by: the centering tool unit comprises a gauge rod and an elastic centering frame, wherein the gauge rod comprises a central rod, an inner connecting sleeve, an outer sleeve, a spring, a positioning sleeve, an outer connecting sleeve and a dial indicator fixing sleeve, the inner connecting sleeve, the outer sleeve and the outer connecting sleeve are sequentially connected to form a gauge rod casing part, the positioning sleeve is fixed on the inner wall of the outer connecting sleeve, the central rod is arranged inside the gauge rod casing part, a bulge is arranged on the central rod, the spring is sleeved outside the central rod, the position of the spring is located between the bulge and the positioning sleeve, and the dial indicator fixing sleeve is fixedly installed behind the outer connecting sleeve through a locking screw;

the elastic centering frame comprises an upper meter rod support half, a lower meter rod support half, an upper meter rack arc plate half and a lower meter rack arc plate half, the upper meter rod support half and the lower meter rod support half are connected with a meter rod through slipknot bolts, the upper meter rack arc plate half and the lower meter rack arc plate half are connected with an elastic shaft through slipknot bolts, the lower meter rod support half is provided with a meter rod support connecting rod, the upper meter rack arc plate half is provided with a meter rack arc plate connecting rod, the meter rod support connecting rod is connected with the meter rack arc plate connecting rod, and the relative position of the meter rod support connecting rod and the meter rack arc plate connecting rod is adjustable;

the centering tool units comprise two or more than two, and elastic centering frames of different centering tool units are located at different positions of the elastic shaft.

The utility model discloses can also include:

1. the fixed cover of percentage table is connected the percentage table, and well core rod is when taking place the displacement because the elastic shaft is not centering reason atress, well core rod compression spring under the combined action of position sleeve to with self displacement volume through outer adapter sleeve, the fixed cover of percentage table transmit the measurement tip of percentage table, make it take place the displacement and show displacement volume numerical value, disappear when the shaft coupling is not centering, well core rod tip no longer the atress, well core rod resets under the effect of spring, the percentage table resets because the elimination of displacement volume simultaneously.

The utility model has the advantages that:

1. the utility model discloses can effectively satisfy the on-the-spot centering in-process of gas turbine, the measurement of shaft coupling both ends terminal surface opening numerical value is particularly useful for the centering inspection in smart centering and unit fortune dimension stage.

2. The utility model discloses can be stable fix the percentage table on the shaft coupling, improve the measurement accuracy.

3. The utility model discloses compact structure, part retrench, operation flow are simple, but the gas turbine equipment of different usage (gas turbine-compressor, gas turbine-generator, gas turbine-gear box etc.) of adaptation.

4. The utility model discloses field operation is simple, can improve on-the-spot centering operating efficiency, and the economic nature is high. Each main part has reasonable design, higher independence and interchangeability and can reduce the maintenance cost.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the meter bar of the present invention;

fig. 3a is a schematic structural view of the elastic centering frame of the present invention, and fig. 3b is a side view of the elastic centering frame.

Detailed Description

The invention will be described in more detail below by way of example with reference to the accompanying drawings:

with reference to fig. 1-3b, the utility model discloses a centering frock unit, centering frock unit include table pole 1, elasticity centering frame 2, and table pole 1 includes well core rod an, inner connecting sleeve b, outer tube c, spring d, position sleeve e, outer connecting sleeve f, the fixed cover g of percentage table and locking screw h, as shown in fig. 2. The elastic centering frame 2 comprises: the lower half 11 of the watch frame arc-shaped plate, the upper half 12 of the watch frame arc-shaped plate, the lower half 13 of the watch rod bracket, the upper half 14 of the watch rod bracket, a slipknot bolt 15, a bolt nut and the like, as shown in fig. 3a and 3 b. The centering tool units are multiple and are respectively located at different positions of the elastic shaft.

When the central rod a at the end part of the meter rod is stressed to displace in the measuring process, the central rod a compresses the spring d under the combined action of the positioning sleeve e, and the self displacement is transmitted to the measuring end part of the dial indicator 3 through the dial indicator fixing sleeve g, so that the measuring end part displaces and displays the displacement value. The inner connecting sleeve b, the outer sleeve c and the outer connecting sleeve f jointly form a meter rod shell part and play roles in connection and support.

The lower half 12 and the upper half 11 of the arc-shaped plate of the meter stand are used as rotating shafts through connecting bolts, the other ends of the arc-shaped plate of the meter stand are fixed as locking through slipknot bolts 15, and the meter stand can be integrally and stably installed on the surface of a coupler. The top end of the bracket of the upper half 12 of the arc-shaped plate of the gauge stand is provided with a support for fixing the gauge rod bracket, the support is fixed through a bolt, and the radial height of the support can be adjusted.

The lower part 13 and the upper part 14 of the watch rod support are used as rotating shafts through connecting bolts, and the other ends of the watch rod support are used as locking and fixing through slipknot bolts 5, so that the watch rod can be locked and fixed.

The working principle is as follows:

as shown in fig. 1, when the gas turbine coupling centering tool is used, all the elastic centering frames 2 are firstly installed at proper positions of the coupling (elastic shaft), and are locked and fixed. And then, connecting each meter rod 1 to the corresponding elastic centering frame 2, and installing the dial indicator 3 on the meter rod bracket, wherein the radial height of the meter rod support can be adjusted according to conditions during the process, so that the meter rod support is suitable for flanges (measuring objects) with different sizes.

After the installation and fixation are completed, measurement is started. When the central rod a is stressed to displace due to the opening (non-centering) of the end face of the coupler, the central rod a compresses the spring d under the combined action of the positioning sleeve e, and the self displacement is transmitted to the measuring end part of the dial indicator 3 through the dial indicator fixing sleeve g, so that the central rod a displaces and displays the displacement value. And when the opening (not centering) of the end surface of the coupler disappears, the end part of the central rod a is not stressed any more, the central rod a is reset under the action of the spring d, and the dial indicator is reset due to the elimination of the displacement.

Claims

1. The utility model provides a gas turbine shaft coupling centering frock combination which characterized by: the centering tool unit comprises a gauge rod and an elastic centering frame, wherein the gauge rod comprises a central rod, an inner connecting sleeve, an outer sleeve, a spring, a positioning sleeve, an outer connecting sleeve and a dial indicator fixing sleeve, the inner connecting sleeve, the outer sleeve and the outer connecting sleeve are sequentially connected to form a gauge rod casing part, the positioning sleeve is fixed on the inner wall of the outer connecting sleeve, the central rod is arranged inside the gauge rod casing part, a bulge is arranged on the central rod, the spring is sleeved outside the central rod, the position of the spring is located between the bulge and the positioning sleeve, and the dial indicator fixing sleeve is fixedly installed behind the outer connecting sleeve through a locking screw;