CN102392690A

CN102392690A - Rotating device for heating impeller of turbine

Info

Publication number: CN102392690A
Application number: CN2011102555434A
Authority: CN
Inventors: 詹春辉; 太秀滨; 董生权; 姚青文; 刘立辉; 张俊成; 王丽红; 陈佩娟
Original assignee: Harbin Turbine Co Ltd
Current assignee: Harbin Turbine Co Ltd; Hadian Power Equipment National Engineering Research Center Co Ltd
Priority date: 2011-08-31
Filing date: 2011-08-31
Publication date: 2012-03-28
Anticipated expiration: 2031-08-31
Also published as: CN102392690B

Abstract

The invention discloses a rotating device for heating an impeller of a turbine, relating to a rotating device for the impeller of the turbine. As solving the problem that the production is limited caused by that the impeller is inconvenient to heat prior to assembling a rotor of the turbine and the impeller in interference fit way. An electric motor, a speed reducer, a pinion and a gearwheel are arranged in a supporting seat; an output shaft of the electric motor is in transmission connection with an input shaft of the speed reducer; the pinion fixedly mounted on the output shaft of the speed reducer is engaged with the gearwheel; the gearwheel is fixedly arranged at the lower end of a rotary shaft; the upper end of the rotary shaft is in floating connection with a connecting frame; the connecting frame is detachably connected with a rotating platform by a flange disc; multiple groups of vibration absorbing type idler wheel subassemblies are fixedly arranged on the lower end of the flange disc; the idler wheels of each group of vibration absorbing type idler wheel subassemblies are arranged in a circular V-shaped rail which is fixedly mounted on the upper end of a supporting seat; a supporting sleeve is arranged on the upper end of the rotating platform, and a sleeve cover connected with the impeller is mounted on the supporting sleeve. The rotating device disclosed by the invention has the use of heating the impeller of the turbine.

Description

The whirligig that is used for the turbine rotor heating

Technical field

The present invention relates to a kind of whirligig of turbine rotor.

Background technique

The 200000 rotor majorities with the tubine unit are the hot jacket rotor; Be to be interference fit (being that the impeller endoporus is less than the rotor main shaft outside diameter) between impeller and the rotor main shaft; Therefore can not directly impeller be inserted on the rotor main shaft, need endoporus be expanded the impeller heating.When heating impeller need sling with crane, everyone hand-held one toasts several operators grilled gun to impeller, every grade of impeller baking approximately needs 40 minutes, the temperature of baking approximately is 300 ℃.Need crane to cooperate during baking, crane can not carry out other work, has a strong impact on the work of other lathe, has restricted production always.The operator hands grilled gun simultaneously, and not enough 1m is far away in distance baking position, and roasting temperature also is very big to operator's actual bodily harm.Especially in summer, baking one-level impeller need be changed two or three batch operation person, taken great amount of manpower, and impeller is heated inhomogeneous.

Summary of the invention

The purpose of this invention is to provide a kind of whirligig that is used for the turbine rotor heating, inconvenient to the impeller heating operation before solving present turbine rotor and impeller interference assembling, the problem that restriction is produced.

The present invention solves the problems of the technologies described above the technological scheme of taking to be: said device comprises motor, retarder, small gear, gearwheel, rotating shaft, link press span, flange plate, turntable, ring V-type track, supporting sleeve, cap bag, supporting base and organizes the shock reducing type roll wheel assembly more; Motor, retarder, small gear and gearwheel all are contained in the supporting base; The output shaft and the input shaft of speed reducer of motor are in transmission connection; Be packed in small gear and gearwheel engagement on the output shaft of retarder, gearwheel is packed in the lower end of rotating shaft, and the upper end of rotating shaft is connected with link press span is unsteady; Link press span removably connects through flange plate and turntable; Be uniformly distributed with on the lower end surface of flange plate and be fixed with many group shock reducing type roll wheel assemblies, the roller of every group of shock reducing type roll wheel assembly is located in the ring V-type track, and ring V-type track is packed on the upper-end surface of supporting base; On the upper-end surface of turntable supporting sleeve is housed, is equipped with on the supporting sleeve and is used for the cap bag that is connected with impeller.

The present invention has following beneficial effect: use the present invention that turbine rotor is heated, alleviate the actual conditions of crane anxiety in producing greatly, alleviated working strength of workers, increase work efficiency; Also changed simultaneously the manual operations of long-term traditional mode.Impeller is heated evenly, quality is high, shortens to original 1/4th heating time.

Description of drawings

Fig. 1 is the whole main sectional view of looking of the present invention, Fig. 2 be among Fig. 1 A-A to sectional view.

Embodiment

Embodiment one: combine Fig. 1 and Fig. 2 that this mode of execution is described; The device of this mode of execution comprises motor 1, retarder 2, small gear 3, gearwheel 4, rotating shaft 5, link press span 6, flange plate 7, turntable 8, ring V-type track 9, supporting sleeve 10, cap bag 11, supporting base 12 and organizes shock reducing type roll wheel assembly 13 more; Motor 1, retarder 2, small gear 3 and gearwheel 4 all are contained in the supporting base 12; The input shaft of the output shaft of motor 1 and retarder 2 is in transmission connection; Be packed in small gear 3 and gearwheel 4 engagements on the output shaft of retarder 2, gearwheel 4 is packed in the lower end of rotating shaft 5, the upper end of rotating shaft 5 and 6 unsteady connections of link press span; Link press span 6 removably connects through flange plate 7 and turntable 8; Be uniformly distributed with on the lower end surface of flange plate 7 and be fixed with many group shock reducing type roll wheel assemblies 13, the roller of every group of shock reducing type roll wheel assembly 13 is located in the ring V-type track 9, and ring V-type track 9 is packed on the upper-end surface of supporting base 12; Supporting sleeve 10 is housed on the upper-end surface of turntable 8, is equipped with on the supporting sleeve 10 and is used for the cap bag 11 that is connected with impeller.

Embodiment two: combine Fig. 1 that this mode of execution is described; The device of this mode of execution also comprises bearing support 14, clutch shaft bearing 15, second bearing 16 and a plurality of dunnage 17; Bearing support 14 is located between link press span 6 and the gearwheel 4, and the clutch shaft bearing 15 and second bearing 16 are housed in the rotating shaft 5, and the clutch shaft bearing 15 and second bearing 16 are contained on the bearing support 14; Bearing support 14 is affixed with the inwall of supporting base 12 through a plurality of dunnages 17, and this is simple in structure easily manufactured.Other composition and annexation are identical with embodiment one.

Working principle: during use; Impeller to be heated is contained on the cap bag 11, opens motor 1, motor 1 drives small gear 3 through retarder 2 and rotates; Small gear 3 and gearwheel 4 engagements; Gearwheel 4 drives rotating shaft 5 and rotates, and rotating shaft 5 drives turntable 8 through link press span 6 and rotates, and turntable 8 rotates through supporting sleeve 10 and cap bag 11 impeller.

Claims

1. one kind is used for the whirligig that turbine rotor heats; It is characterized in that said device comprises motor (1), retarder (2), small gear (3), gearwheel (4), rotating shaft (5), link press span (6), flange plate (7), turntable (8), ring V-type track (9), supporting sleeve (10), cap bag (11), supporting base (12) and many group shock reducing type roll wheel assemblies (13); Motor (1), retarder (2), small gear (3) and gearwheel (4) all are contained in the supporting base (12); The input shaft of the output shaft of motor (1) and retarder (2) is in transmission connection; Be packed in small gear (3) and gearwheel (4) engagement on the output shaft of retarder (2), gearwheel (4) is packed in the lower end of rotating shaft (5), and the upper end of rotating shaft (5) is connected with link press span (6) is unsteady; Link press span (6) removably connects through flange plate (7) and turntable (8); Be uniformly distributed with on the lower end surface of flange plate (7) and be fixed with many group shock reducing type roll wheel assemblies (13), the roller of every group of shock reducing type roll wheel assembly (13) is located in the ring V-type track (9), and ring V-type track (9) is packed on the upper-end surface of supporting base (12); Supporting sleeve (10) is housed on the upper-end surface of turntable (8), is equipped with on the supporting sleeve (10) and is used for the cap bag (11) that is connected with impeller.

2. according to the said whirligig that is used for the turbine rotor heating of claim 1; It is characterized in that said device also comprises bearing support (14), clutch shaft bearing (15), second bearing (16) and a plurality of dunnage (17); Bearing support (14) is located between link press span (6) and the gearwheel (4); Clutch shaft bearing (15) and second bearing (16) are housed in the rotating shaft (5); Clutch shaft bearing (15) and second bearing (16) are contained on the bearing support (14), and bearing support (14) is affixed with the inwall of supporting base (12) through a plurality of dunnages (17).