CN211205142U

CN211205142U - Tilting pad radial bearing clearance measuring tool

Info

Publication number: CN211205142U
Application number: CN201921840767.XU
Authority: CN
Inventors: 杨焱森; 徐毅; 马振国; 张文明
Original assignee: Dalian Energas Turbine Power Technology Co ltd
Current assignee: Dalian oppner Turbine Power Technology Co.,Ltd.
Priority date: 2019-10-30
Filing date: 2019-10-30
Publication date: 2020-08-07
Anticipated expiration: 2029-10-30

Abstract

The utility model discloses a tilting pad journal bearing clearance measurement frock relates to bearing clearance measurement technical field, mainly includes upper and lower crown plate, backup pad, bottom plate, deep floor, diaphragm, still includes the journal stirrup department in the crown plate left and right sides, two counter sink holes and a taper pin hole that respectively set up, upper and lower crown plate together with bolt and taper pin fixed connection. Two groups of upper and lower ring plates are respectively provided with a hole which is formed by one-step processing and has a diameter of 70mm, and the end surfaces of the upper and lower ring plates are respectively provided with 8 bolt holes for mounting a bearing. The utility model is suitable for a rotor is whole to be difficult to dismantle, or is difficult to directly use on equipment to lift the operating mode in axle method measurement bearing clearance. The method can measure the bearing clearance, can detect the abrasion condition of the running rotor bearing, and provides a basis for accurately evaluating the usability of the rotor bearing.

Description

Tilting pad radial bearing clearance measuring tool

Technical Field

The utility model relates to a bearing clearance measures technical field, especially relates to a measure frock in tilting pad radial bearing clearance.

Background

At present, the common methods for detecting the gap of the radial bearing of the tilting pad mainly comprise a lead pressing method, a shaft lifting method, a false shaft method and a shaft gauge method. The shaft lifting method is widely applied, and can not directly measure the bearing clearance aiming at the condition that a rotor which cannot be disassembled and is inconvenient to disassemble or cannot be directly measured on equipment (such as a hot-assembled rotor and a rotor assembled in an interference fit manner) so as to check the wear degree of the bearing. Therefore, it is very important to design a tool capable of measuring the bearing clearance quickly and conveniently.

For example, patent No. 2017210312013 discloses an adjustable centrifugal compressor bearing clearance measuring specialized tool, and comprises crossbeam, support and lift a device, and the crossbeam is the hollow roof beam of rectangle, and 2 supports are installed respectively in the both sides lower extreme of crossbeam, lift a device and install in the crossbeam middle part, lift a device and include tile and 2 screw lead screws, and the lower extreme and the tile of screw lead screw are connected, and the upper end and the crossbeam of screw lead screw are connected, and 2 division of crossbeam vertical direction have and draw the through-hole. Although the special tool has a simple structure and can improve the working efficiency, the roughness and the coaxiality after processing cannot be guaranteed, and the measurement precision is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that bearing clearance cannot be measured on equipment by a shaft lifting method.

In order to solve the problems, the following technical scheme is adopted:

the utility model provides a tilting pad journal bearing clearance measures frock, has included the last crown plate, the lower crown plate that are used for the installation bearing, has still included at the journal stirrup department of the crown plate left and right sides, two counter sink holes and a taper pin hole that respectively install, bottom plate, deep floor, diaphragm and backup pad, upper and lower crown plate be in the same place with bolt and taper pin fixed connection. Two groups of upper and lower ring plate bores are respectively provided with a hole with the diameter of 70mm, so that the roughness and the coaxiality are ensured, and the upper and lower ring plate bores are formed in one step. The end faces are respectively provided with 8 bolt holes for mounting the bearings.

In a further improvement, the bottom of the bottom plate is provided with a groove with the depth of 3mm along the axial direction, and the left and the right of the groove are respectively provided with a distance of 50mm for clamping and fixing the tool at the position during machining.

The reinforcing rib plate and the transverse plate are used for increasing the axial rigidity of the integral structure, so that the structure is prevented from generating excessive deformation due to the cutting force of a cutter during machining, and the precision of the machined integral structure is guaranteed.

The utility model has the advantages of simple structure, higher precision and accuracy, repeated use and disassembly, etc. The device is suitable for the rotor which cannot directly measure the bearing clearance by using a shaft lifting method on equipment, and can measure the bearing clearance of the used rotor so as to check the abrasion degree of the used rotor, and the measurement result can provide reference for accurately judging the availability of the bearing.

Drawings

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

fig. 2 is a side view of the present invention;

fig. 3 is a top view of the present invention;

in the figure: 1. the device comprises an upper ring plate, a lower ring plate, a support plate, a bottom plate, a reinforcing rib plate, a transverse plate, a bolt, a conical pin and a bolt, wherein the upper ring plate 2, the lower ring plate 3, the support plate 4, the bottom plate 5, the reinforcing rib plate 6, the transverse plate 7 and the conical pin 8.

Detailed Description

The tilting pad radial bearing clearance measuring tool according to the present invention will be explained and explained in detail with reference to the accompanying drawings and embodiments.

Example 1: referring to fig. 1, a tilting pad radial bearing gap measuring tool includes an upper ring plate 1, a lower ring plate 2, a supporting plate 3, a bottom plate 4, a reinforcing rib plate 5 and a transverse plate 6 for mounting a bearing. The lower end of the lower ring plate 2 is connected with a supporting plate 3, the lower end of the supporting plate 3 is a bottom plate 4, a reinforcing rib plate 5 is connected between the supporting plate 3 and the bottom plate 4, a transverse plate 6 is arranged above the reinforcing rib plate 5, and the upper ring plate 1, the lower ring plate 2 and other structures are connected in a welding mode. Two countersunk holes and a conical pin hole are respectively arranged at the support lugs at two sides of the two ring plates, and the two ring plates are connected by utilizing bolt connection and positioning of a conical pin 8, as shown in figure 2. The bottom surface of the bottom plate 4 is provided with a groove with the depth of 3mm along the axial direction, and the left side and the right side of the bottom plate are respectively provided with a distance of 50 mm; the reinforcing rib plate 5, the supporting plate 3 and the bottom plate 4 are also welded into a whole; and 8 threaded holes for mounting the bearing are formed in the upper ring plate and the lower ring plate.

The tool using method comprises the following steps: when the device is used, the upper ring plate 1 is detached, the rotor to be tested and the bearing are placed at the bearing positioning position of the lower ring plate 2, and then the rotor to be tested and the bearing are fixed through the bolts 7. When the measurement is carried out, dial indicators are placed on the upper ring plate and the lower ring plate, the indicator needle is placed on the shaft close to the bearing, and then zero setting is carried out. And lifting one end of the shaft along the vertical direction, reading the numerical value on the dial indicator, and finally reading the reading of the other end in the same way.

The tool machining method comprises the following steps: before the integral processing, all structural components are welded and formed, and then mechanical processing operations such as boring, cutting, drilling and the like are carried out. The integral structure comprises an upper ring plate and a lower ring plate which are used for installing and fixing a bearing, wherein supporting plates are welded at the lower parts of the upper ring plate and the lower ring plate, and the lower parts of the supporting plates are welded with a bottom plate. Two reinforcing rib plates are respectively arranged between the two supporting plates and the bottom plate, and a transverse plate is respectively welded above the reinforcing rib plates.

Claims

1. The utility model provides a frock is measured in tilting pad journal bearing clearance, is including last crown plate (1), lower crown plate (2) that are used for the installation bearing, and lower crown plate (2) lower extreme is connected with backup pad (3), and backup pad (3) lower extreme is bottom plate (4), has deep floor (5) between backup pad (3) and bottom plate (4), and there is diaphragm (6) reinforcing floor (5) top, its characterized in that: the upper ring plate (1) and the lower ring plate (2) are connected by countersunk head screws and are provided with conical pins; 8 threaded holes are formed in the upper ring plate and the lower ring plate, and boring holes are formed in the centers of the upper ring plate and the lower ring plate;

the lower part of the lower ring plate (2) is connected with the supporting plate (3), the lower part of the supporting plate (3) is connected with the bottom plate (4), the reinforcing rib plates (5) are connected with the supporting plate (3) and the bottom plate (4), and the transverse plate (6) is connected with the reinforcing rib plates (5) and the supporting plate (3) in a welding mode.

2. The tilting pad radial bearing clearance measuring tool according to claim 1, characterized in that: the bottom of the bottom plate is provided with a groove with the depth of 3mm along the axial direction, and the left and the right are respectively provided with a distance of 50 mm.