CN220028684U

CN220028684U - Plane turning device of hydraulic turbine supporting part

Info

Publication number: CN220028684U
Application number: CN202320673668.7U
Authority: CN
Inventors: 朱科; 谢美文; 段洪朝; 熊冬冬; 蒋鹏; 黄紫馨
Original assignee: China Yangtze Power Co Ltd
Current assignee: China Yangtze Power Co Ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-11-17
Anticipated expiration: 2033-03-30

Abstract

The plane turning device of the hydraulic turbine supporting component comprises a cross beam, a rotary driving table, a rotary arm and a turning tool bit, wherein the cross beam is erected at the top of a buttress, the rotary driving table is arranged at the center of the cross beam, a rotary shaft is vertically arranged in the rotary driving table, the other end of the rotary shaft is connected with the rotary arm, and the turning tool bit is arranged in the rotary arm; the utility model adopts a full-automatic overhaul mode, can effectively improve the plane overhaul quality of the seat ring, ensures the safe and stable operation of the unit, reduces the labor intensity and improves the site construction environment.

Description

Plane turning device of hydraulic turbine supporting part

Technical Field

The utility model relates to the field of hydropower station overhaul devices, in particular to a plane turning device for a hydraulic turbine supporting component.

Background

In the long-term running process of the large hydropower station unit, as the joint surface of the seat ring and the top cover is corroded by water vapor for a long time, the plane of the seat ring can generate a limit error value with the height exceeding a tolerance and the flatness exceeding 0.35mm, and the non-parallelism of the plane of the seat ring and the plane of the base ring exceeds a limit value. Because the seat ring is a supporting component of the top cover, the follow-up installation of the water guide mechanism is affected by the exceeding of the elevation, the flatness and the parallelism of the seat ring, and the plane of the seat ring is required to be processed on site in order to ensure the stable operation of the unit.

In the existing plane maintenance scheme of the seat ring of the hydropower station unit, the defect is usually repaired by adopting a manual polishing mode after manual repair welding, and by adopting the method, a large amount of noise, dust and harmful smog are generated in the working process, the labor intensity is high, the efficiency is low, the repair quality is low, the flatness of the plane of the seat ring cannot be ensured, and therefore, the plane turning device of the hydraulic turbine supporting part is required to be researched and used for recovering the elevation, the flatness and the parallelism of the plane of the seat ring.

Disclosure of Invention

In view of the technical problems existing in the background art, the plane turning device for the hydraulic turbine supporting component provided by the utility model adopts a full-automatic overhaul mode, so that the plane overhaul quality of a seat ring can be effectively improved, the safe and stable operation of a unit is ensured, the labor intensity is reduced, and the site construction environment is improved.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a plane turning device of hydraulic turbine supporting part, includes cross beam, rotary driving platform, gyration arm and turning tool bit, and the cross beam erects at the top of buttress, and the rotary driving platform is installed to the center part of cross beam, install the rotation axis perpendicularly in the rotary driving platform, the gyration arm is connected to the other end of rotation axis, and the inside of gyration arm is equipped with the turning tool bit.

In the preferred scheme, the center part of the cross beam is provided with a mounting groove, and the rotary driving table is hung in the mounting groove and detachably connected with the cross beam.

In the preferred scheme, the rotary driving table comprises a fixed base, a rotary bottom plate and a rotary top plate; the fixed base is placed in the mounting groove, a rotating bottom plate and a rotating top plate are arranged above the fixed base, the lower end face of the rotating bottom plate is movably connected with the fixed base and can rotate around the axis of the fixed base, the upper end face of the rotating bottom plate is connected with the rotating top plate through a supporting column, and a rotating shaft is arranged at the axis of the rotating bottom plate and the axis of the rotating top plate.

In the preferred scheme, a rotation control system is arranged in the rotary driving table and controls the rotation of the rotary bottom plate and the rotary top plate, and a hydraulic system is also arranged in the rotary driving table and controls the rotary shaft to slide up and down.

In the preferred scheme, the rotation control system includes by gear ring and driving motor, the outside department at unable adjustment base is installed to the gear ring, and driving motor installs perpendicularly in the up end of rotatory roof, and driving motor's tip is equipped with drive gear, drive gear and gear ring meshing are connected.

In the preferred scheme, hydraulic system is including the hydraulic press, and the lateral wall department of rotation axis is installed perpendicularly and is had the cardboard, and the rotation axis passes through cardboard joint in the axle center department of rotatory bottom plate and rotatory roof, and the upper end department of rotation axis is equipped with the roof, has installed the hydraulic press perpendicularly between rotatory bottom plate and the rotatory roof, the hydraulic press passes through telescopic hydraulic rod and connects the roof.

In the preferred scheme, the turning tool bit is including the slip base frame, the slip base frame is installed in the gyration arm, and the slip base frame is by feed system control and along the spacing removal of gyration arm, and the knife rest has been installed to the lower extreme of slip base frame, the outer wall department of knife rest is equipped with the slide rail, installs the carriage on the slide rail, and the carriage is by the inside control system control of knife rest and along slide rail vertical slip from top to bottom, installs the lathe tool on the carriage.

In the preferred scheme, the feed system is including step motor, the gyration arm is interior hollow structure, and the inside both sides department of gyration arm is equipped with the pinion rack, step motor and the up end fixed connection of slip base frame, and step motor's both sides are equipped with drive gear, drive gear and pinion rack meshing are connected.

The following beneficial effects can be achieved in this patent:

1. the device adopts an automatic turning device to replace the traditional manual operation, can efficiently and excellently carry out the on-site processing of the plane of the seat ring, ensures the plane maintenance quality of the seat ring and ensures the safe and stable operation of the unit;

2. the device can reduce labor intensity, reduce environmental pollution such as noise, dust and the like, and shorten the overhaul period;

3. the device can adopt a mode of pre-assembly and integral hoisting processing, can be quickly installed and positioned, and can control the planeness of the annular region with the diameter of more than 15000mm within a normal range by carrying out plane turning processing;

4. the device has stable structure, can process and process the seat ring supporting part of the large-scale hydroelectric generating set, and has the processing precision greatly superior to that of manual polishing and repairing of a plurality of workers.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the whole structure of the present utility model;

FIG. 3 is a schematic diagram illustrating the main structure of the present utility model;

FIG. 4 is an enlarged schematic view of the turning insert and feed system of the present utility model;

fig. 5 is a plan side view of the overall structure of the present utility model.

In the figure: the rotary drive table 2 comprises a cross beam 1, a mounting groove 101, a rotary drive table 2, a fixed base 201, a gear ring 202, a rotary bottom plate 203, a rotary top plate 204, a support column 205, a rotary arm 3, a turning tool bit 4, a sliding base 401, a stepping motor 402, a transmission gear 403, a tool rest 404, a sliding rail 405, a turning tool 406, a sliding frame 407, a rotary shaft 5, a clamping plate 501, a top plate 502, a drive motor 6, a drive gear 601, a hydraulic machine 7, a telescopic hydraulic rod 701, a buttress 8 and a toothed plate 9.

Detailed Description

As shown in fig. 1, 2 and 5, the plane turning device of the hydraulic turbine supporting component comprises a cross beam 1, a rotary driving table 2, a rotary arm 3 and a turning tool bit 4, wherein the cross beam 1 is erected at the top of a buttress 8, the rotary driving table 2 is arranged at the central part of the cross beam 1, a rotary shaft 5 is vertically arranged in the rotary driving table 2, the other end of the rotary shaft 5 is connected with the rotary arm 3, and the turning tool bit 4 is arranged in the rotary arm 3;

when the device works, the rotary driving table 2 drives the rotary shaft 5 to rotate, the rotary shaft 5 drives the rotary arm 3 to rotate around the axis, and then the turning tool bit 4 at the end part of the rotary arm 3 is driven to carry out turning on the plane of the lower seat ring.

The preferred scheme is as shown in fig. 2, the center part of the cross beam 1 is provided with a mounting groove 101, the rotary driving table 2 is hung in the mounting groove 101 and detachably connected with the cross beam 1, in the mounting process, the cross beam 1 is firstly dropped on the buttress 8, and then the rotary driving table 2 is hung in the cross beam 1, so that the single hoisting quantity can be effectively reduced, and the working strength of early hoisting is reduced.

The preferred solution is shown in fig. 3, the rotary driving table 2 comprises a fixed base 201, a rotary bottom plate 203 and a rotary top plate 204; the fixed base 201 is placed in the mounting groove 101, a rotating bottom plate 203 and a rotating top plate 204 are arranged above the fixed base 201, the lower end face of the rotating bottom plate 203 is movably connected with the fixed base 201 and can rotate around the axis of the fixed base, the upper end face of the rotating bottom plate 203 is connected with the rotating top plate 204 through a supporting column 205, and a rotating shaft 5 is arranged at the axis positions of the rotating bottom plate 203 and the rotating top plate 204.

The preferable scheme is as shown in fig. 3, a rotation control system is arranged in the rotary driving table 2 and controls the rotation of the rotation bottom plate 203 and the rotation top plate 204 to control the whole turning tool bit 4 to carry out annular processing on the hydraulic turbine supporting part, and a hydraulic system is also arranged in the rotary driving table 2 and controls the rotation shaft 5 to slide up and down to control the vertical height of the turning tool bit 4.

The preferred scheme is as shown in fig. 3 and 5, the rotation control system comprises a gear ring 202 and a driving motor 6, wherein the gear ring 202 is arranged at the outer side of a fixed base 201, the driving motor 6 is vertically arranged on the upper end surface of a rotating top plate 204, a driving gear 601 is arranged at the end part of the driving motor 6, and the driving gear 601 is in meshed connection with the gear ring 202;

when the device works, the driving motor 6 is started and drives the driving gear 601 to rotate, the driving gear 601 is meshed with the gear ring 202, the gear ring 202 is kept fixed, the driving gear 601 further drives the driving motor 6 to rotate around the gear ring 202, and further drives the rotating bottom plate 203 and the rotating top plate 204 to synchronously rotate around the axis of the gear ring 202.

The preferable scheme is as shown in fig. 3, the hydraulic system comprises a hydraulic machine 7, a clamping plate 501 is vertically arranged at the side wall of a rotating shaft 5, the rotating shaft 5 is clamped at the axle centers of a rotating bottom plate 203 and a rotating top plate 204 through the clamping plate 501, a top plate 502 is arranged at the upper end of the rotating shaft 5, the hydraulic machine 7 is vertically arranged between the rotating bottom plate 203 and the rotating top plate 204, and the hydraulic machine 7 is connected with the top plate 502 through a telescopic hydraulic rod 701;

the device work is that the hydraulic press 7 starts and drives flexible hydraulic stem 701 to stretch out and draw back, and flexible hydraulic stem 701 drives roof 502 vertical slip from top to bottom, and cardboard 501 can ensure that rotation axis 5 only along axial direction spacing slip, and roof 502 slip drives rotation axis 5 synchronous motion, and then drives turning tool bit 4 synchronous slip and the adjustment height of lower extreme department.

As shown in fig. 4, the turning tool bit 4 comprises a sliding base table 401, the sliding base table 401 is arranged in a rotary arm 3, the sliding base table 401 is controlled by a feed system and moves along the rotary arm 3 in a limiting mode, a tool rest 404 is arranged at the lower end of the sliding base table 401, a sliding rail 405 is arranged at the outer wall of the tool rest 404, a sliding frame 407 is arranged on the sliding rail 405, the sliding frame 407 is controlled by a control system in the tool rest 404 and vertically slides up and down along the sliding rail 405, and a turning tool 406 is arranged on the sliding frame 407; the feeding system comprises a stepping motor 402, wherein the rotary arm 3 is of an inner hollow structure, toothed plates 9 are arranged at two sides of the inner part of the rotary arm 3, the stepping motor 402 is fixedly connected with the upper end face of the sliding base table 401, transmission gears 403 are arranged at two sides of the stepping motor 402, and the transmission gears 403 are in meshed connection with the toothed plates 9;

when the device works, the stepping motor 402 starts and drives the transmission gear 403 to rotate, the transmission gear 403 is meshed with the toothed plate 9 and drives the whole sliding base table 401 to slide along the toothed plate 9 in a limiting way, so that the cutter feeding and discharging control of the turning cutter head 4 is realized, the height of the turning cutter head 4 can be finely adjusted through the internal system of the cutter rest 404 in the machining process, and the machining precision of the device is further improved;

in the actual use process, the feed system can also adopt screw transmission, when the travel of the sliding base table 401 is shorter, the screw transmission can enable the feed amount of the turning tool bit 4 to be more accurate, and because the screw transmission is the prior art, the description is omitted here.

The above embodiments are only preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the scope of the present utility model should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.

Claims

1. The utility model provides a plane turning device of hydraulic turbine supporting part, including cross beam (1), rotation driving platform (2), revolving arm (3) and turning tool bit (4), its characterized in that: the cross beam (1) is erected at the top of the buttress (8), a rotary driving table (2) is arranged at the central part of the cross beam (1), a rotary shaft (5) is vertically arranged in the rotary driving table (2), the other end of the rotary shaft (5) is connected with a rotary arm (3), and a turning tool bit (4) is arranged in the rotary arm (3).

2. The plane turning device of a hydraulic turbine support member according to claim 1, wherein: the center part of the cross beam (1) is provided with a mounting groove (101), and the rotary driving table (2) is hung in the mounting groove (101) and detachably connected with the cross beam (1).

3. The plane turning device of a hydraulic turbine support member according to claim 2, wherein: the rotary driving table (2) comprises a fixed base (201), a rotary bottom plate (203) and a rotary top plate (204); the fixed base (201) is placed in the mounting groove (101), a rotating bottom plate (203) and a rotating top plate (204) are arranged above the fixed base (201), the lower end face of the rotating bottom plate (203) is movably connected with the fixed base (201) and can rotate around the axis of the fixed base, the upper end face of the rotating bottom plate (203) is connected with the rotating top plate (204) through a supporting column (205), and a rotating shaft (5) is arranged at the axis positions of the rotating bottom plate (203) and the rotating top plate (204).

4. A plan turning apparatus for a hydraulic turbine support member according to claim 3, wherein: the rotary driving table (2) is internally provided with a rotary control system and controls the rotary bottom plate (203) and the rotary top plate (204) to rotate, and the rotary driving table (2) is internally provided with a hydraulic system and controls the rotary shaft (5) to slide up and down.

5. The plane turning device of a hydraulic turbine support member according to claim 4, wherein: the rotation control system comprises a gear ring (202) and a driving motor (6), wherein the gear ring (202) is arranged at the outer side of a fixed base (201), the driving motor (6) is vertically arranged on the upper end face of a rotating top plate (204), a driving gear (601) is arranged at the end part of the driving motor (6), and the driving gear (601) is meshed with the gear ring (202).

6. The plane turning device of a hydraulic turbine support member according to claim 4, wherein: the hydraulic system comprises a hydraulic machine (7), a clamping plate (501) is vertically arranged at the side wall of a rotating shaft (5), the rotating shaft (5) is clamped at the axle center of a rotating bottom plate (203) and a rotating top plate (204) through the clamping plate (501), a top plate (502) is arranged at the upper end of the rotating shaft (5), the hydraulic machine (7) is vertically arranged between the rotating bottom plate (203) and the rotating top plate (204), and the hydraulic machine (7) is connected with the top plate (502) through a telescopic hydraulic rod (701).

7. The plane turning device of a hydraulic turbine support member according to claim 1, wherein: turning tool bit (4) is including slip base (401), install in revolving arm (3) slip base (401), slip base (401) are by feed system control and along the spacing removal of revolving arm (3), and knife rest (404) are installed to the lower extreme of slip base (401), the outer wall department of knife rest (404) is equipped with slide rail (405), installs carriage (407) on slide rail (405), and carriage (407) are by the inside control system control of knife rest (404) and along slide rail (405) vertical slip from top to bottom, install lathe tool (406) on carriage (407).

8. The plane turning device of a hydraulic turbine support member according to claim 1, wherein: the feeding system comprises a stepping motor (402), the rotary arm (3) is of an inner hollow structure, toothed plates (9) are arranged at two sides of the interior of the rotary arm (3), the stepping motor (402) is fixedly connected with the upper end face of the sliding base table (401), transmission gears (403) are arranged at two sides of the stepping motor (402), and the transmission gears (403) are meshed with the toothed plates (9).