CN214503797U

CN214503797U - Dynamic insulation test bed for rotor of gas turbine generator

Info

Publication number: CN214503797U
Application number: CN202023167609.8U
Authority: CN
Inventors: 朱明华; 曹清疆; 吴庄; 赵克宁
Original assignee: Shenzhen Nanshan Thermal Power Co ltd
Current assignee: Shenzhen Nanshan Thermal Power Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-10-26
Anticipated expiration: 2030-12-24

Abstract

The utility model discloses a combustion engine generator rotor dynamic insulation test platform, including operation panel, first pivot, second pivot and hydraulic stem, the equal fixedly connected with stand of operation panel lower surface four corners department, fixed mounting have the electricity megger body in the middle of the operation panel upper surface, the first pole setting of fixedly connected with in the middle of the operation panel upper surface, bearing and first pivot swivelling joint are passed through on first pole setting top, be equipped with the spout in the middle of the operation panel upper surface opposite side, slidable mounting has the second pole setting in the spout, second pole setting top is passed through the bearing and is rotated with the second pivot and be connected, the equal fixed mounting of the relative one end of first pivot and second pivot, two the relative one side movable mounting of mounting has the body of waiting to examine, first pole setting one side and hydraulic stem one end fixed connection are kept away from in the second pole setting. The utility model provides a current conventional experiment can only measure static insulating problem.

Description

Dynamic insulation test bed for rotor of gas turbine generator

Technical Field

The utility model relates to a rotor detects technical field, specifically is a combustion engine generator rotor dynamic insulation test platform.

Background

When the generator rotor runs at high speed, a point of ground fault is easy to occur. When one point of grounding occurs, a current path is not formed, the symmetry and the reactive power output of a magnetic circuit are not influenced, the generator is not damaged, and the generator can still normally operate. However, when one point of the excitation circuit is grounded, if the fault is not handled in time, the insulation weak point of the rotor winding is likely to be subjected to insulation breakdown, and another point is grounded. The two points are grounded to form a short-circuit current path, so that serious accidents such as burning of rotor windings and iron cores can be caused, and the air gap magnetic field symmetry is damaged due to the fact that part of excitation windings are short-circuited, so that violent vibration and reactive power output of a unit are reduced.

However, the conventional test method can only measure the static insulation of the generator rotor, and cannot accurately detect and judge the insulation change and the fault property of the generator rotor under the dynamic condition.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas turbine generator rotor dynamic insulation test platform possesses the accurate change condition of measuring the generator at the speed rise and the insulating situation of change of deceleration in-process rotor, confirms the fault point to for accurate analytical equipment situation, trouble reason, formulate the advantage that the maintenance scheme provides reliable technical basis, solved current conventional experiment and can only measure static insulating problem.

In order to achieve the above object, the utility model provides a following technical scheme: a dynamic insulation test bed for a rotor of a gas turbine generator comprises an operation table, a servo motor, a first rotating shaft, a second rotating shaft and a hydraulic rod, wherein four corners of the lower surface of the operation table are fixedly connected with stand columns, an electric megger body is fixedly installed in the middle of the upper surface of the operation table, a first vertical rod is fixedly connected in the middle of the upper surface of the operation table, a bearing is fixedly connected to the top end of the first vertical rod, the inner wall of the bearing at the top end of the first vertical rod is fixedly connected with the first rotating shaft, a fixing part is fixedly installed at one end of the first rotating shaft, a sliding groove is arranged in the middle of the other side of the upper surface of the operation table, a second vertical rod is slidably installed in the sliding groove, a bearing is fixedly connected to the top end of the second vertical rod, the inner wall of the bearing at the top end of the second vertical rod is fixedly connected with the second rotating shaft, fixing parts are fixedly installed at one end of the second rotating shaft, and a body to be detected is movably installed at one side of the fixing parts, and one side of the second vertical rod, which is opposite to the first vertical rod, is fixedly connected with one end of the hydraulic rod.

Preferably, the display screen is installed in the positive embedding of electricity megger body, and the positive movable mounting of electricity megger body of display screen below has starting switch, and electricity megger body upper surface front end fixed mounting has the second check rod, and the second check rod is connected with electricity megger body electricity, second check rod back top and second spring one end elastic connection, the second spring other end with wait to examine a body outer wall contact but not fixed connection.

Preferably, the other end of the first rotating shaft is rotatably connected with one side of a servo motor, and the bottom end of the servo motor is fixedly installed on the upper surface of an operating platform.

Preferably, the second pivot has first test rod for cavity rod-like structure and middle movable mounting, and first test rod one end is connected with electricity megger body electricity through the connecting wire, and the first test rod other end passes the mounting and stretches into to wait to examine a body inside, and the first test rod other end is annular array elastic connection and has first spring, and the one end that first test rod was kept away from to first spring is with waiting to examine a body inner wall contact but not fixed connection.

Preferably, the hydraulic rod is fixedly connected with the upper surface of the operating platform through a support frame.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a through setting up the electricity megger body, and at electricity megger body upper surface front end fixed mounting second detection pole, make through the second spring on the second detection pole wait to examine a body outer wall and electricity megger body electricity and be connected, through connecting wire with the first detection pole with electricity megger body electricity is connected, through inserting the first detection pole in waiting to examine a body, through the first spring on the first detection pole make wait to examine a body inner wall and electricity megger body electricity and be connected, has reached the effect of conveniently measuring the internal and external resistance value of waiting to examine a body, the utility model discloses a through setting up first pole setting and second pole setting, and at first pole setting and second pole setting top fixed connection bearing, and through bearing installation first pivot and second pivot respectively, through the mounting of installing respectively in the relative one side of first pivot and second pivot, and promote the second pole setting through the hydraulic stem, make two be close and step up and wait to examine a body, the effect of waiting to examine a body convenient fixed has been reached, the utility model discloses a set up servo motor to with servo motor and first pivot rotation connection, drive first pivot through first servo motor work, thereby the messenger waits to examine a body and rotates, has reached and has waited to examine the rotatable effect in fixed back of a body.

Drawings

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

FIG. 2 is an enlarged schematic view of the structure at A of the present invention;

fig. 3 is a schematic front view of the present invention;

fig. 4 is a schematic top view of the present invention.

In the figure: 1. a column; 2. an operation table; 3. a servo motor; 4. a first rotating shaft; 5. a first upright rod; 6. A body of the piece to be detected; 7. a first spring; 8. a second rotating shaft; 9. a hydraulic lever; 10. a support frame; 11. a chute; 12. a first detection lever; 13. an electric megger body; 14. a fixing member; 15. a bearing; 16. a second upright stanchion; 17. a second detection lever; 18. a display screen; 19. starting a switch; 20. a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 4, the present invention provides an embodiment: the utility model provides a combustion engine generator rotor dynamic insulation test platform, including operation panel 2, servo motor 3, first pivot 4, second pivot 8 and

hydraulic stem

9, 2 equal fixedly connected with stands of 2 lower surface four corners departments of operation panel 1, fixed mounting has electricity megger body 13 in the middle of 2 upper surfaces of operation panel, the first pole setting 5 of fixedly connected with in the middle of the 2 upper surfaces of operation panel, 5 top fixedly connected with bearings 15 of first pole setting, the 15 inner walls of bearing and the 4 fixed connection of first pivot on 5 tops of first pole setting, 4 one end fixed mounting of first pivot have mounting 14, the 4 other ends of first pivot are rotated with 3 one sides of servo motor and are connected, 3 bottom fixed mounting of servo motor are at 2 upper surfaces of operation panel. Through setting up servo motor 3 to rotate servo motor 3 and first pivot 4 and be connected, drive first pivot 4 through 3 work of first servo motor, thereby make and wait to examine a body 6 and rotate, reached and examined the rotatable effect of a body 6 fixed back of examining. Be equipped with spout 11 in the middle of 2 upper surface opposite sides of operation panel, slidable mounting has second pole setting 16 in

spout

11, 16 top fixedly connected with bearings 15 of second pole setting, bearing 15 inner wall and the 8 fixed connection of second pivot on 16 tops of second pole setting, 8 one end fixed mounting of second pivot have fixing piece 14, two relative one side movable mounting of fixing piece 14 have wait to examine a body 6, through setting up first pole setting 5 and second pole setting 16, and at

first pole setting

5 and 16 top fixed connection bearings 15 of second pole setting, and install first pivot 4 and second pivot 8 respectively through bearings 15, through the fixing piece 14 of installing respectively in first pivot 4 and the relative one side of second pivot 8, and promote second pole setting 16 through hydraulic stem 9, make two fixing pieces 14 be close and step up and examine a body 6, the effect of examining a body 6 has been reached to make things convenient for the fixed.

The display screen 18 is installed in the front embedding of electricity megger body 13, and the electricity megger body 13 of display screen 18 below openly movable mounting has starting switch 19, and electricity megger body 13 upper surface front end fixed mounting has second check rod 17, and second check rod 17 is connected with electricity megger body 13 electricity, and second check rod 17 back top and second spring 20 one end elastic connection, the second spring 20 other end with wait to examine the contact of 6 outer walls of a body but not fixed connection. Second pivot 8 has first detection pole 12 for cavity rod-shaped structure and middle movable mounting, and first detection pole 12 one end is connected with electric megger body 13 electricity through the connecting wire, and the first detection pole 12 other end passes mounting 14 and stretches into to examine inside examining a body 6, and the first detection pole 12 other end is the first spring 7 of annular array elastic connection, and the one end that first detection pole 12 was kept away from to first spring 7 is with examining a body 6 inner wall contact but not fixed connection. Through setting up electric megger body 13, and at electric megger body 13 upper surface front end fixed mounting second detection bar 17, make through the second spring 20 on the second detection bar 17 and wait to examine 6 outer walls of a body and be connected with electric megger body 13 electricity, be connected first detection bar 12 and electric megger body 13 electricity through the connecting wire, through waiting to examine this internal 6 with first detection bar 12 insertion, it connects with electric megger body 13 electricity to examine a 6 inner walls of body through first spring 7 messenger on the first detection bar 12, reached and conveniently measured the effect of examining the internal and external resistance value of a body 6, second pole setting 16 and first pole setting 5 leave one side and 9 one end fixed connection of hydraulic stem mutually. The hydraulic rod 9 is fixedly connected with the upper surface of the operating platform 2 through a support frame 10.

The working principle is as follows: the utility model discloses in waiting to examine a body 6 one end through inserting second test rod 17 during the use, and start hydraulic stem 9, make second pole setting 16 remove and be close first pole setting 5 along 11 directions of spout, thereby will wait to examine a body 6 and fix in two relative one sides of mounting 14, start servo motor 3 this moment, make and wait to examine a body 6 and rotate, start electric megger body 13 through starting switch 19, the resistance value when making to examine a body 6 rotation shows on display screen 18.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a dynamic insulation test platform of combustion engine generator rotor, includes operation panel (2), servo motor (3), first pivot (4), second pivot (8), hydraulic stem (9) and second spring (20), its characterized in that: the electric megger is characterized in that four corners of the lower surface of the operating platform (2) are fixedly connected with columns (1), an electric megger body (13) is fixedly mounted in the middle of the upper surface of the operating platform (2), a first upright rod (5) is fixedly connected in the middle of the upper surface of the operating platform (2), a bearing (15) is fixedly connected to the top end of the first upright rod (5), the inner wall of the bearing (15) at the top end of the first upright rod (5) is fixedly connected with a first rotating shaft (4), a fixing part (14) is fixedly mounted at one end of the first rotating shaft (4), a sliding groove (11) is arranged in the middle of the other side of the upper surface of the operating platform (2), a second upright rod (16) is slidably mounted in the sliding groove (11), the bearing (15) is fixedly connected to the top end of the second upright rod (16), the inner wall of the bearing (15) at the top end of the second upright rod (16) is fixedly connected with a second rotating shaft (8), and one end of the second rotating shaft (8) is fixedly mounted with the fixing part (14), two one side movable mounting that is relative in mounting (14) has and waits to examine a body (6), second pole setting (16) and first pole setting (5) one side of the back of the body and hydraulic stem (9) one end fixed connection.

2. The dynamic insulation test bed for the rotor of the generator of the combustion engine as claimed in claim 1, wherein: display screen (18) are installed in the positive embedding of electricity megger body (13), electricity megger body (13) of display screen (18) below openly movable mounting has starting switch (19), electricity megger body (13) upper surface front end fixed mounting has second test rod (17), second test rod (17) are connected with electricity megger body (13) electricity, second test rod (17) back top and second spring (20) one end elastic connection, second spring (20) other end with wait to examine a body (6) outer wall contact but not fixed connection.

3. The dynamic insulation test bed for the rotor of the generator of the combustion engine as claimed in claim 1, wherein: the other end of the first rotating shaft (4) is rotatably connected with one side of the servo motor (3), and the bottom end of the servo motor (3) is fixedly installed on the upper surface of the operating platform (2).

4. The dynamic insulation test bed for the rotor of the generator of the combustion engine as claimed in claim 1, wherein: second pivot (8) have first detection pole (12) for cavity rod-shaped structure and middle movable mounting, first detection pole (12) one end is passed through the connecting wire and is connected with electricity megger body (13) electricity, first detection pole (12) other end passes mounting (14) and stretches into to examine and examine a body (6) inside, first detection pole (12) other end is annular array elastic connection and has first spring (7), first spring (7) keep away from the one end of first detection pole (12) and examine a body (6) inner wall contact but not fixed connection.

5. The dynamic insulation test bed for the rotor of the generator of the combustion engine as claimed in claim 1, wherein: the hydraulic rod (9) is fixedly connected with the upper surface of the operating platform (2) through a support frame (10).