CN210741385U

CN210741385U - Rotor hoisting monitoring device

Info

Publication number: CN210741385U
Application number: CN201922214167.9U
Authority: CN
Inventors: 郭善成; 代康; 史恩泽; 王兆禹; 刘亮; 刘文峰; 孙学利; 苏有权; 张华峰
Original assignee: Taipingwan Power Station State Grid Northeast Branch Department Lyuyuan Hydroelectric Co
Current assignee: Taipingwan Power Station State Grid Northeast Branch Department Lyuyuan Hydroelectric Co
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-06-12
Anticipated expiration: 2029-12-11

Abstract

The utility model belongs to the technical field of supervisory equipment, especially, relate to a rotor hoist and mount monitoring devices, its characterized in that is including setting up on the rotor, and per two six recesses that are 60 degrees apart from, sets up the side's pipe in every recess respectively, sets up the infrared ray distance sensor group in every side's pipe bottom portion respectively, two reinforcing bars of fixed side's pipe and recess, spring, infrared ray distance sensor group are including the three infrared ray distance sensor who is three-dimensional perpendicular placing, two wherein infrared ray distance sensor's infrared ray see through side's pipe end face directive front and back opposite direction, another infrared ray distance sensor's infrared ray perpendicular directive ground. The utility model discloses a sensor measures or fixes a position rotor central point and puts, rotor levelness, stator and rotor clearance, thereby can judge the rotor position and shorten rotor hoist and mount time, can reduce the damage such as deformation that the rotor fish tail probability avoids arousing because of the fish tail, can stop the potential safety hazard, improves work efficiency.

Description

Rotor hoisting monitoring device

Technical Field

The utility model belongs to the technical field of supervisory equipment, especially, relate to a rotor hoist and mount monitoring devices.

Background

The hydraulic generator rotor has the characteristics of large volume and heavy weight, the clearance between the rotor and the stator is about 15-20 mm generally, the diameter of the generator rotor reaches 13 meters, and the rotor is difficult to hoist in place. In the maintenance construction, a manual board inserting mode is generally adopted, a thin board is placed in a gap between the stator and the rotor, the board continuously moves, and a lifting commander judges the gap between the rotor and the stator according to feedback information of board inserting personnel. When the inserting plate is blocked, the clearance of the rotor is considered to be too small, the hoisting machinery needs to be moved in a very small range, and the central position of the rotor is adjusted to ensure that enough clearance is formed between the stator and the rotor, so that the rotor is hoisted to smoothly pass through the stator and then to be in place. The mode of the manual inserting plate is basically adopted for overhauling and installing domestic units, more personnel are needed, and generally, a batten is needed to be lifted by one person at the interval of about 2 meters around the stator. For the hoisting of large rotors, about 20 persons are needed for clearance inspection.

In addition, the existing method is easy to generate lateral pressure in the hoisting process, so that the stator is stressed. After the rotor enters the stator, if a clamping strip occurs on one side, the position of the rotor needs to be adjusted at the moment, and the bridge crane is moved in a small space, so that the phenomenon that the rotor extrudes a wood board after excessive displacement is inevitable, and therefore, the lateral thrust is generated on the stator, and the displacement or deformation of the stator can be possibly caused. Meanwhile, the center of the rotor needs to be adjusted frequently in the installation process, the hoisting time is long, the hoisting equipment runs at full load for a long time, potential safety hazards are easily caused, and the service life of the hoisting equipment is shortened.

Disclosure of Invention

The utility model aims at providing a rotor hoist and mount monitoring devices adopts the sensor to measure the location to the rotor, can accurately judge the rotor position, shortens rotor hoist and mount time, improves the security of rotor hoist and mount quality and hoist and mount process.

The purpose of the utility model is realized by the following technical scheme:

the utility model is characterized in that the device comprises six grooves which are arranged on the rotor and are separated by 60 degrees, a square tube which is respectively arranged in each groove, an infrared distance sensor group which is respectively arranged at the bottom of each square tube, two steel bars which fix the square tube and the grooves, a spring which is connected with the two steel bars,

the infrared distance sensor group comprises three infrared distance sensors, wherein the infrared rays of the two infrared distance sensors penetrate through the end face of the square tube and emit to the front and back opposite directions, and the infrared rays of the other infrared distance sensor emit to the ground vertically.

The front end of the reinforcing steel bar is in a bent hook shape.

The square tube is of a cuboid structure and is made of a metal material.

The utility model has the advantages that:

the utility model discloses a rotor hoist and mount monitoring devices adopts the sensor to measure or fix a position rotor central point and puts, rotor levelness, stator and rotor clearance, thereby personnel can judge the rotor position with more convenient mode and shorten rotor hoist and mount time, can reduce the damage such as deformation that the rotor fish tail probability avoids arousing because of the fish tail, can reduce manpower and materials and unnecessary potential safety hazard to effectively improve work efficiency, and easy to assemble and take out around the hoist and mount.

Drawings

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

Fig. 2 is the terminal sensor device diagram of square pipe of the utility model.

Fig. 3 is a top view of the square tube rotor of the present invention.

Detailed Description

The following further describes the embodiments of the present invention with reference to the drawings.

As shown in figures 1-3, the rotor lifting monitoring device of the utility model is characterized in that the device comprises six grooves 1 which are arranged on the rotor and are separated by 60 degrees, square pipes 2 which are respectively arranged in each groove 1, infrared distance sensor groups which are respectively arranged at the bottom of each square pipe 2, two steel bars 4 which fix the square pipes 2 and the grooves 1, and springs 5 which are connected with the two steel bars 4,

the infrared distance sensor group comprises three infrared distance sensors 3, wherein the infrared rays of the two infrared distance sensors 3 penetrate through the end face of the square pipe 2 and emit to the front and back opposite directions, and the infrared rays of the other infrared distance sensor 3 perpendicularly emit to the ground.

The front end of the reinforcing steel bar 4 is in a bent hook shape.

The square tube 2 is of a cuboid structure and is made of a metal material.

According to the rotor hoisting monitoring device, the infrared distance sensor 3 is adopted to measure and position the rotor, so that the position of the rotor can be accurately judged, the rotor hoisting time is shortened, and the rotor hoisting quality and the safety of the hoisting process are improved. The device comprises the infrared distance sensor 3 of three direction, and when the rotor at the decline in-process that agrees with the stator, can judge the interval between rotor and stator through the signal that infrared distance sensor 3 given to guarantee going on smoothly of hydraulic generator rotor hoist and mount location.

Six grooves 1 which are arranged on the rotor and are separated by 60 degrees are selected, the infrared distance sensors 3 in different directions are fixed together and firmly placed at the tail ends of the square tubes 2, the six square tubes 2 with the infrared distance sensors 3 at the tail ends are respectively placed in the six selected grooves 1 of the rotor, and the inner side, the outer side and the lower side of the groove 1 are respectively measured. The square tube 2 in each groove 1 is fixed from the back by two hooked steel bars 4 connected by a spring 5, an infrared distance sensor 3 measures or positions the rotor center position, the rotor levelness, the stator and rotor gap and the rotor coupling position angle in the hoisting process, the spring 5 is untied after the hoisting is finished, the steel bars 4 are taken out, and the square tube 2 is extracted from the upper part of the rotor.

The utility model discloses a rotor hoist and mount monitoring devices adopts infrared distance sensor 3 to put, rotor levelness, stator and rotor clearance to measure or fix a position, thereby personnel can judge the rotor position with more convenient mode and shorten rotor hoist and mount time, can reduce the damage such as deformation that rotor fish tail probability avoids arousing because of the fish tail, can reduce manpower and materials and unnecessary potential safety hazard, thereby effectively improve work efficiency, and easy to assemble and take out around the hoist and mount.

Claims

1. A rotor hoisting monitoring device is characterized by comprising six grooves which are arranged on a rotor and are separated by 60 degrees, square pipes which are respectively arranged in each groove, infrared distance sensor groups which are respectively arranged at the bottom of each square pipe, two steel bars which are used for fixing the square pipes and the grooves, and springs which are used for connecting the two steel bars,

2. The rotor lifting monitoring device as claimed in claim 1, wherein the front ends of the reinforcing bars are in the shape of a curved hook.

3. The rotor hoisting monitoring device according to claim 1, wherein the square tube has a rectangular parallelepiped structure and is made of a metal material.