CN215469481U

CN215469481U - Steam turbine sliding ring repairing device

Info

Publication number: CN215469481U
Application number: CN202121448822.8U
Authority: CN
Inventors: 李爱政; 邓辉; 邓强
Original assignee: Huaqiang Chemical Group Co Ltd
Current assignee: Huaqiang Chemical Group Co Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-01-11
Anticipated expiration: 2031-06-28

Abstract

The utility model provides a repairing device for a slip ring of a steam turbine, which comprises a driving mechanism for driving a main shaft of a generator to rotate and a repairing mechanism for repairing the slip ring, wherein the repairing mechanism comprises a base arranged on the lower side of the slip ring, a tool rest support arranged on the base and a tool rest arranged on the tool rest support, the base is provided with a purifying groove which is opened towards the slip ring and is used for containing liquid, a guiding mechanism for guiding scraps to the position below the liquid level of the liquid in the purifying groove is arranged in the purifying groove, and the bottom of the purifying groove is communicated with a waste discharge pipe provided with a valve. The utility model has the effects of improving the problems that the scrap can be generated in the process of repairing the slip ring, the working environment of the slip ring is polluted, the health of a slip ring repairing worker is harmed, and the overall repairing efficiency is lower due to the fact that the scrap needs to be additionally collected.

Description

Steam turbine sliding ring repairing device

Technical Field

The application relates to a sliding ring processing equipment field especially relates to a steam turbine sliding ring prosthetic devices.

Background

The slip ring is used as an important component of a steam turbine, and in the long-term use process, due to factors such as mechanical vibration, overload or carbon brush quality, the phenomena of pits, unevenness and the like appear on the surface of the slip ring in the operation process, so that poor contact between the carbon brush and the slip ring is caused, the shaft temperature is increased, and normal production is influenced. The traditional maintenance needs to be repaired in a factory, the repair time is long, and the cost is high.

The utility model discloses a chinese utility model patent that publication number is CN202424422U is used for carrying out on-the-spot prosthetic equipment to the sliding ring of generator, wherein, this equipment is including being used for the drive the rotatory drive arrangement of main shaft of generator with be used for right the sliding ring carries out prosthetic devices, drive arrangement is barring device, barring device includes motor and reduction gears, prosthetic devices includes lathe tool, burnishing machine and can carry out vertically to feed and the knife rest of cross feed, lathe tool and burnishing machine are installed selectively on the knife rest, prosthetic devices still includes the knife rest support, the knife rest is installed on the knife rest support, prosthetic devices still includes the base, the knife rest support mounting is in on the base, be provided with adjusting bolt on the base.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the in-process at the restoration sliding ring can produce the sweeps, pollutes the operational environment of sliding ring, and harmful sliding ring repair personnel's health, and need collect the sweeps in addition, leads to whole restoration efficiency lower.

SUMMERY OF THE UTILITY MODEL

In order to improve and can produce the sweeps at the in-process of restoreing the sliding ring, pollute the operational environment of sliding ring, harmful sliding ring repair personnel's health, and need collect the sweeps in addition, lead to the lower problem of whole repair efficiency, this application provides a steam turbine sliding ring prosthetic devices.

The application provides a steam turbine sliding ring prosthetic devices adopts following technical scheme:

the utility model provides a steam turbine sliding ring prosthetic devices, is including being used for driving the rotatory actuating mechanism of generator main shaft, being used for carrying out prosthetic repair body to the sliding ring, repair body is including setting up in the base of sliding ring downside, setting up the knife rest support on the base and setting up the knife rest on the knife rest support, the base is seted up towards the sliding ring opening and is used for the purification groove of splendid attire liquid, it is provided with the guiding mechanism who is used for leading the piece to purify under the inslot liquid level to purify the inslot, the bottom intercommunication that purifies the groove has the pipe of wasting discharge who is provided with the valve.

Preferably, guiding mechanism is the frustum form and the top is fixed in the direction annular, the top intercommunication direction annular bottom of purifying groove notch department and the bottom including the inversion stretches into the square pipe and be fixed in the air exhauster in the square pipe below the liquid level in the purification groove, the liquid level that the air exhauster place horizontal plane is higher than in the purification groove.

Preferably, square intraductal being provided with for the air exhauster is close to square top of tubes and is the cutting bits hanging basket of upper shed structure, square intraductal wall circumference is provided with annular link plate, the upper shed end that cuts the bits hanging basket is buckled and is hung and locate annular link plate, the bottom that cuts the bits hanging basket runs through and has seted up a plurality of bits of broken glass holes.

Preferably, the bottom of the scrap cutting hanging basket is conical, and the scrap cutting holes are flared and open downwards.

Preferably, the baffle is arranged at the top end of the conical bottom of the scrap-cutting hanging basket.

Preferably, purify the vertical two baffles that are provided with of upper shed department in groove, two the radial both sides of sliding ring are arranged in to the baffle branch, just the bottom mounting in base of baffle, two the top of baffle slopes mutually on the back.

Preferably, the base includes a plurality of slide rails and slides simultaneously and sets up in the base body of a plurality of slide rails, the length direction of slide rail extends along the length direction of main shaft, purify the groove and offer in base body.

Preferably, the base body is provided with a bolt which can be simultaneously in threaded connection with the base body and the slide rail.

Preferably, the bottom of the purification tank is inclined, and the waste discharge pipe is communicated with the bottom end of the inclined bottom of the purification tank.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the purification tank, the guide plate, the exhaust fan, the square tube and the guide chute, debris and waste gas generated by repairing the slip ring are directly introduced into the purification tank, so that the probability that the debris is scattered in the working environment of the slip ring is reduced; the waste gas is purified by liquid in the purifying tank, and the scraps pumped to the bottom end of the square pipe are blocked by the scrap-cutting hanging basket, so that the damage of the scraps to blades of the exhaust fan is reduced, and the scraps are convenient to clean, so that the problems that the scraps are generated in the process of repairing the slip ring, the working environment of the slip ring is polluted, the health of repair personnel of the slip ring is harmed, the scraps need to be additionally collected, and the overall repairing efficiency is low are solved;

2. through utilizing original equipment foundation to set up this sliding ring prosthetic devices at the scene, carry out repair work to the sliding ring at the scene, solved and to have dismantled the sliding ring and get off to send to special restoration mill and restore, the shortcoming that repair cost is high, time is long has that repair time is short, with low costs and repair effectual advantage.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of a partial cross-sectional structure of an embodiment of the present application;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

In the above drawings: 1. a main shaft; 2. a drive mechanism; 3. a slip ring; 4. a repair mechanism; 41. a base; 411. a slide rail; 4111. a roller; 412. a base body; 4121. a purification tank; 4122. a waste discharge pipe; 413. a guide plate; 42. a tool rest support; 43. a tool holder; 431. turning a tool; 432. polishing the machine; 5. a guide ring groove; 6. a square tube; 61. an annular hanging plate; 7. an exhaust fan; 8. a scrap-cutting hanging basket; 81. chip holes; 82. and a baffle plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

Referring to fig. 1 and 2, an embodiment of the present application provides a repairing apparatus for a slip ring of a steam turbine, including a driving mechanism 2 for driving a main shaft 1 of a generator to rotate and a repairing mechanism 4 for repairing the slip ring 3; the driving mechanism 2 is an existing driving device, such as a turning gear that drives the main shaft 1 of the generator to rotate slowly after the generator stops working to prevent the main shaft 1 from bending; the repair mechanism 4 comprises a base 41 arranged on the lower side of the slip ring 3, a tool rest support 42 arranged on the base 41, and a tool rest 43 arranged on the tool rest support 42 and positioned on the radial side of the slip ring 3, wherein a turning tool 431 and a polishing machine 432 are arranged on the tool rest 43; wherein the tool holder 43 may be a conventional tool holder 43 capable of longitudinal feeding and transverse feeding, and the tool holder 43 may be commercially available; turning tool 431 and polishing machine 432 may be mounted to tool holder 43 in any suitable manner, such as by fasteners or clamps.

When repairing, the base 41 is fixed with the existing equipment foundation through bolts or other fasteners; then adjusting the position of the tool rest 43, and determining the machining allowance of the slip ring 3 by measuring the radial circular runout and the straightness of the slip ring 3; then the main shaft 1 and the slip ring 3 are driven to rotate by the driving mechanism 2; meanwhile, after the slip ring 3 is turned by the turning tool 431, the slip ring 3 is ground by the polishing machine 432; after the machining and the detection are finished, the next repairing work of the slip ring 3 can be carried out. The method for measuring the radial run-out and the straightness of the slip ring 3 is well known to those skilled in the art and will not be described herein.

The base 41 includes a plurality of slide rails 411 and a base body 412, and the cartridge holder 42 is provided at one end of the upper side of the base body 412. The slide rail 411 is fixed with the existing equipment foundation through bolts or other fasteners, and the length direction of the slide rail extends along the length direction of the main shaft 1; the slide rail 411 is provided with a slide groove with an upper opening structure, and the opening of the slide groove is oppositely bent to form a limiting plate. The base body 412 is disposed on the upper sides of the sliding rails 411, and a roller 4111 disposed in a sliding slot of the sliding rail 411 is fixed on the lower side of the base body 412 to realize the sliding of the base body 412 on the sliding rail 411. The base 41 comprises a plurality of sliding rails 411 and a base body 412 which can move on the sliding rails 411, so that the position of the tool holder support 42 can be changed by moving the base body 412, the repairing work of a plurality of sliding rings 3 can be conveniently completed, the tool holder support 42 does not need to be dismounted and mounted for many times, the weight and the floor area of the base body 412 can be relatively reduced, and the using effect is better.

Be provided with the bolt on base body 412, seted up a plurality of bolt holes on slide rail 411 to base body 412 after will removing through the bolt is fixed in slide rail 411, guarantees base body 412's stability, and then guarantees the stability of whole device when processing sliding ring 3, guarantees sliding ring 3's repair effect preferred.

Referring to fig. 2 and 3, the other end of the upper side of the base body 412 is provided with a purifying groove 4121 for containing liquid, the purifying groove 4121 is opened upwards towards the slip ring 3, so that the chips generated by repairing the slip ring 3 directly fall into the purifying groove 4121, the scattering of the chips and the pollution to the working environment of the slip ring 3 are reduced, and the problem of low overall repairing efficiency caused by the need of additionally collecting the waste chips is solved. The bottom of the purification tank 4121 is inclined, and a waste discharge pipe 4122 is connected to the bottom end of the inclined bottom of the purification tank 4121, and the waste discharge pipe 4122 is provided with a valve so that waste water is completely discharged through the waste discharge pipe 4122.

Two guides 413 fixed to the base 41 are vertically arranged at the upper opening of the purification groove 4121, the two guides 413 are respectively arranged on two radial sides of the sliding ring 3, and the tops of the two guides 413 are inclined oppositely, so that the chips generated by repairing the sliding ring 3 are guided to the purification groove 4121 through the guides 413, the chips are further prevented from scattering, and the collection effect is enhanced.

A guide mechanism is arranged in the purifying groove 4121, and comprises a guide ring groove 5, a square pipe 6 which is vertically arranged and an exhaust fan 7 which is arranged in the square pipe 6; the guide ring groove 5 is inverted into a frustum shape, and the top end of the guide ring groove is fixed at the notch of the purification groove 4121; the top of square pipe 6 communicates the bottom of guide ring groove 5, and the liquid level that air exhauster 7 is located is higher than the liquid level of the liquid in purifying groove 4121, prevents that liquid from causing the damage to air exhauster 7. When restoreing the sliding ring 3, can open air exhauster 7, take out the piece that will restore the sliding ring 3 production and waste gas together and purify under the liquid level of liquid in the groove 4121, realize purifying, further improve and can produce the sweeps at the in-process of restoreing the sliding ring, pollute the operational environment of sliding ring, harmful sliding ring repair personnel's health, and need collect the sweeps in addition, lead to the lower problem of whole repair efficiency.

An annular hanging plate 61 is circumferentially arranged on the inner wall of the square pipe 6, and the annular hanging plate 61 is close to the top end of the square pipe 6 relative to the exhaust fan 7.

A scrap cutting hanging basket 8 with an upper opening structure is further arranged in the square pipe 6, and the upper opening end of the scrap cutting hanging basket 8 is bent and hung on the annular hanging plate 61 to realize the installation of the scrap cutting hanging basket 8; a plurality of scrap holes 81 are formed in the bottom of the scrap-cutting hanging basket 8 in a penetrating mode, so that waste gas is guaranteed to be pumped into liquid, meanwhile, the scraps pumped to the bottom end of the square tube 6 are blocked through the scrap-cutting hanging basket 8, damage of the scraps to blades of the exhaust fan 7 is reduced, and the scraps are convenient to clean; the bottom of the scrap-cutting hanging basket 8 is conical so as to reduce the blockage of accumulated scraps on the scrap holes 81 and ensure that the guide effect of airflow generated by the exhaust fan 7 on the scraps is better; the chip holes 81 are flared in a downwardly opening manner to further reduce the chance of chips passing through the chip holes 81 and the chip holes 81 becoming clogged. The baffle 82 is arranged at the top end of the conical bottom of the scrap-cutting hanging basket 8, so that the scrap holes 81 below the baffle 82 are shielded by the baffle 82, the probability that the scrap holes 81 are blocked is reduced, and meanwhile, the disassembly and assembly of the scrap-cutting hanging basket 8 are facilitated by applying force to the baffle 82.

Finally, the above embodiments are only used for illustrating the technical solutions of the present application and not for limiting, although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application, and all the technical solutions of the present application should be covered by the claims of the present application.

Claims

1. The utility model provides a steam turbine sliding ring prosthetic devices, is used for driving the rotatory actuating mechanism (2) of generator main shaft (1), is used for restoreing repair body (4) to sliding ring (3), repair body (4) are including setting up in base (41) of sliding ring (3) downside, setting up knife rest support (42) on base (41) and setting up knife rest (43) on knife rest support (42), its characterized in that: the base (41) is provided with a purification tank (4121) which is opened towards the slip ring (3) and is used for containing liquid, a guide mechanism which is used for guiding the scraps to the position below the liquid level in the purification tank (4121) is arranged in the purification tank (4121), and the bottom of the purification tank (4121) is communicated with a waste discharge pipe (4122) which is provided with a valve.

2. The turbine slip ring repair device according to claim 1, wherein: guiding mechanism is frustum form and top are fixed in guide ring groove (5), top intercommunication guide ring groove (5) bottom and the bottom of purifying groove (4121) groove department including the inversion and stretch into square pipe (6) and be fixed in air exhauster (7) in square pipe (6) under the liquid level in purifying groove (4121), air exhauster (7) place level is higher than the liquid level in purifying groove (4121).

3. The turbine slip ring repair device according to claim 2, wherein: be provided with in square pipe (6) and be close to square pipe (6) top and be upper shed structure for air exhauster (7) cut bits and hang basket (8), square pipe (6) inner wall circumference is provided with annular link plate (61), the upper end that cuts bits and hang basket (8) is buckled and is hung and locate annular link plate (61), cut bits and hang the bottom of basket (8) and run through and seted up a plurality of bits of broken glass holes (81).

4. The turbine slip ring repair device according to claim 3, wherein: the bottom of the scrap cutting hanging basket (8) is conical, and the scrap cutting holes (81) are flared and open downwards.

5. The turbine slip ring repair device according to claim 4, wherein: and a baffle (82) is arranged at the top end of the conical bottom of the scrap-cutting hanging basket (8).

6. The turbine slip ring repair device according to claim 1, wherein: purify the upper shed department of groove (4121) and vertically be provided with two baffle (413), two radial both sides in sliding ring (3) are arranged in baffle (413) branch, just the bottom mounting in base (41) of baffle (413), two the top of baffle (413) inclines mutually away.

7. The turbine slip ring repair device according to claim 1, wherein: the base (41) comprises a plurality of sliding rails (411) and a base body (412) which is arranged on the plurality of sliding rails (411) in a sliding mode, the length direction of the sliding rails (411) extends along the length direction of the spindle (1), and the purifying groove (4121) is formed in the base body (412).

8. The turbine slip ring repair device according to claim 7, wherein: the base body (412) is provided with a bolt which can be simultaneously in threaded connection with the base body (412) and the sliding rail (411).

9. The turbine slip ring repair device according to claim 1, wherein: the bottom of the purifying tank (4121) is inclined, and the waste discharge pipe (4122) is communicated with the bottom end of the inclined bottom of the purifying tank (4121).