CN111573539A - Hoisting device for super-long steam turbine generator - Google Patents

Abstract

The invention discloses an ultra-long steam turbine generator hoisting device, which relates to the technical field of equipment hoisting, and solves the problem that the commonly used hoisting method has a small limit distance for installing the rotor into the motor casing and cannot completely push the rotor into the motor casing to complete the installation. assembly problem. An ultra-long steam turbine generator hoisting device includes a base and a lifting platform; two sets of pulleys and six sets of universal wheels are fixedly arranged on both sides of the bottom of the base; two sets of two sets are integrally provided on both sides of the top of the base Guide columns; the tops of both sides of the lifting platform are integrally provided with lifting platform columns, and the bottom inner sides of the lifting platform columns are all provided with square grooves, which provide a convenient lifting function for the hoisting device by being provided with buckles and discharging brackets. The buckle can rotate outward or inward synchronously through the control of the rack, and can easily release or fasten the motor rotor. At the same time, the buckle can lock the side frame plate through the scissor mechanism to fix both sides of the rotor.

Description

An ultra-long steam turbine generator hoisting device

technical field

The invention relates to the technical field of equipment hoisting, in particular to an ultra-long steam turbine generator hoisting device.

Background technique

Turbine generator is a common equipment in power generation enterprises. Its main function is to convert other energy from the external environment into mechanical energy to drive the rotor of the generator to rotate, so that the rotor of the generator cuts the magnetic lines of force in the magnetic field, thereby generating induced electric energy, and then generating electricity. To transmit electric energy to the power network, the steam turbine generator is generally composed of stator, rotor, end cover, brush, frame and bearing. other structural components.

After searching, for example, the patent with the patent number of CN105003305B discloses an integral frame of a steam turbine generator, which includes: the outer wall of the excitation end, which is annular in shape; the middle wall of the excitation end, which includes: a plurality of support pipes at the excitation end; plate; an excitation end retaining ring; an excitation end retaining ring; an excitation end outer cover plate; the outer wall of the steam end, in the shape of a ring; the middle wall of the steam end, which includes: a plurality of steam end support pipes; at least two steam end ribs; FAW end retaining ring; FAW end retaining ring; FAW end cover plate; general cover plate, formed by the butt joint of the excitation end cover plate and the steam end cover plate; one end of the general cover plate is provided with an arc opening, and both sides of the general cover plate are provided with Flange hole; flange, arranged in the flange hole of the general cover plate; an arc-shaped plate, connected to the arc-shaped opening of the general cover plate, and a number of through holes are opened on the arc-shaped plate; a number of flange pieces are respectively inserted in the through hole of the arc-shaped plate. The assembled machine base shell has high strength, good sealing performance, can withstand high pressure, and has a long service life under high temperature conditions, can effectively protect the stator core and improve production efficiency.

However, the currently used hoisting device mainly hoists and moves the motor rotor for assembly. Since the top of the installation position of the pulley is blocked by the motor, the commonly used hoisting method has a small limit distance for the rotor to be installed in the motor casing, which cannot be The rotor is completely pushed into the motor casing to complete the assembly. Therefore, it does not meet the existing needs. For this, we propose a super-long turbo-generator hoisting device.

SUMMARY OF THE INVENTION

(1) Technical problems

The purpose of the present invention is to provide a super-long steam turbine generator hoisting device, in order to solve the problem that the currently used hoisting device proposed in the above-mentioned background technology mainly hoists and moves the motor rotor through a hoisting tool for assembly. To block the motor, the commonly used hoisting method has a small limit distance for installing the rotor into the motor casing, and the rotor cannot be completely pushed into the motor casing to complete the assembly.

(2) Technical solutions

In order to achieve the above purpose, the present invention provides the following technical solutions: an ultra-long steam turbine generator hoisting device, including a base and a lifting platform; two sets of pulleys and six sets of universal wheels are fixedly arranged on both sides of the bottom of the base; the Two sets of guide columns are integrally provided on both sides of the top of the base; the lift platform columns are integrally provided on the tops of both sides of the lifting platform, and square grooves are opened on the inner side of the bottom of the lift platform columns; the guide columns are integrated with the lift platform. The square grooves of the column are slidably connected, and a hydraulic lift is fixed between the base and the lifting platform; a sliding device is fixedly arranged on the top of one side of the lifting platform; the top of the lifting platform is slidably provided with a movable seat; One side of the top of the base is integrally provided with a vertical plate; the sliding device further includes a bottom pulley, a side pulley and a connecting bar; two sets of bottom pulleys are rotatably arranged on the inner side of the top of the sliding device; both sides of the side pulley The axle brackets are all provided with sliding rods and are fixedly connected with connecting bars through both sides of the sliding device, and the side pulleys are all tapered wheel structures; the top side of the base is fixedly provided with a discharge tray.

Preferably, the lifting platform further includes a horizontal plate, a guide rod, a short lead screw, and a hand wheel shaft; two sets of uprights are arranged on the top of one side of the lifting table, the shape of the uprights is the same as that of the lifting table, and the uprights are located on the first side of the sliding device. At the bottom of the side, a horizontal plate is fixed in the middle of the column; a guide rod is fixedly arranged between the horizontal plate and the sliding device, and the outer casing of the guide rod is provided with a spring; a short wire is rotated between the horizontal plate and the sliding device through a bearing. A handwheel shaft is rotatably arranged on one side of the vertical column of the lifting platform through the two sets of vertical columns, and the middle of the handwheel shaft is connected with the short lead screw through a bevel gear.

Preferably, the sliding device further includes a pull rod and a sliding block; the bottoms of the axle frames of the side pulleys are all slidably arranged in the sliding device through the guide rails, and the positions of the side pulleys and the bottom pulleys are staggered, and the side pulleys are located outside. The outer ends of the two sets of axle brackets are provided with pull rods through rotation of the shaft; the bottoms of the pull rods are connected with sliding blocks.

Preferably, the movable seat further includes a protrusion, a push rod, and a pedestal; a protrusion is integrally provided on one side of the top of the movable seat, and a push rod is slidably arranged in the middle of the protrusion through clearance fit; One side of the rod is a ball head structure, and the other side of the push rod is fixed with a disc structure by bolts; both sides of the bottom of the pedestal are provided with thin guide rods, and the pedestal is slidably arranged on the movable seat through the thin guide rods. On the top, a threaded jack is fixedly arranged between the pedestal and the movable seat; the main body of the pedestal is an L-shaped structure, and an arc-shaped groove is opened on the top of the front side of the pedestal.

Preferably, the vertical plate further includes a side plate and a side guide rod; a sliding plate is slidably provided on the outside of the vertical plate through the side plate and the side guide rod, and a motor is fixed on the top side of the sliding plate; A middle seat is slidably arranged on both sides of the bottom of the board.

Preferably, the intermediate seat further includes a screw; the top of the intermediate seat is integrally provided with a screw; the middle of both sides of the sliding plate is rotatably provided with a T-shaped nut through a rotating shaft, and the screw is threadedly connected with the nut, The outer ends of the nuts are all set to a worm gear structure; the top of the intermediate seat is provided with a worm screw through a rotating shaft, and the worm screw and the motor are connected by means of a coupling.

Preferably, the middle seat further includes a side frame plate, a corner block, a buckle and a scissor mechanism; side frame plates are pierced on both sides of the middle seat, and scissors are fixedly arranged between the side frame plates mechanism; the outer bottom of the side frame plate is integrally provided with corner blocks, and the middle of the corner blocks is provided with a buckle through the bearing rotation; the top rotating shaft of the buckle is connected by a key through the corner block Gears are fixedly arranged; the buckles are all arc-shaped structures, and the inner edges of the buckles are rounded.

Preferably, the middle seat further includes a rack, an adjusting screw and a stretch block; the outer bottom of the side frame plate is slidably provided with a rack through the guide rail, and the outer side of the rack is meshed with the top gear of the buckle; The outer bottom of one group of the intermediate seats is slidably provided with a stretch block through a long guide rod, and both sides of the stretch block are integrally provided with cross bars and are slidably connected through the racks on both sides; The outer side is slidably provided with a nut through the guide rail, and the outer side of the intermediate seat is provided with an adjusting screw to be threadedly connected to the nut;

(3) Beneficial effects

The invention provides an ultra-long steam turbine generator hoisting device, which provides a convenient lifting function for the hoisting device by being provided with a buckle and a discharging bracket, and the buckle can rotate outward or inward synchronously through the control of the rack. , the rotor of the motor can be easily loosened or fastened, and at the same time, the buckle can lock the side frame plate to fix both sides of the rotor through the scissors mechanism. The operation is simple, and it has the functions of hoisting and locking. The control cooperates with the meshing of the worm gear and the screw to quickly raise the rotor for assembly.

Secondly, the setting of the sliding device provides the auxiliary sliding function for the hoisting device. The inner bottom surface of the sliding device is provided with a bottom pulley, and side pulleys are provided on both sides, which can facilitate the delivery of the rotor into the motor casing, and the side pulleys can pass through The pulling force of the pull rod is locked in the middle, and the two sides of the rotor are brought together by the auxiliary sliding of the side pulley, which improves the accuracy of assembly.

Furthermore, the movable seat can be used to hold the tail end of the rotor to carry the rotor. The pedestal can cooperate with the push rod and use the sliding of the movable seat to push the rotor into the motor shell for installation. The push rod can slide, which is convenient. Adjust the use of left and right, and at the same time when lifting the rotor, the push rod can be pushed to one side, so as to avoid the push rod hindering the lifting process of the rotor, the moving distance is long, and the rotor can be greatly pushed into the motor casing.

Description of drawings

1 is a schematic diagram of a three-dimensional structure in an embodiment of the present invention;

2 is a schematic diagram of a shaft side structure in an embodiment of the present invention;

3 is a schematic diagram of a rear side three-dimensional structure in an embodiment of the present invention;

FIG. 4 is a schematic diagram of a bottom-view three-dimensional structure in an embodiment of the present invention;

5 is a schematic three-dimensional structural diagram of a sliding device in an embodiment of the present invention;

6 is a schematic diagram of a bottom-view three-dimensional structure of a sliding device in an embodiment of the present invention;

FIG. 7 is a schematic three-dimensional structure diagram of a middle seat in an embodiment of the present invention;

8 is a schematic diagram of an enlarged structure of part A in an embodiment of the present invention;

In Figures 1 to 8, the corresponding relationship between component names or lines and drawing numbers is:

1. base; 101, guide column; 102, hydraulic lift; 2, lift table; 201, lift table column; 202, horizontal plate; 203, guide rod; 204, short lead screw; 205, hand wheel shaft; 3, sliding device; 301, bottom pulley; 302, side pulley; 303, connecting bar; 304, pull rod; 305, sliding block; 4, movable seat; 401, bump; 402, push rod; 403, pedestal; 5, vertical plate; 501, Side plate; 502, side guide rod; 6, sliding plate; 7, motor; 8, middle seat; 801, screw rod; 802, side frame plate; 803, corner block; 804, buckle; 805, rack; 806 , scissor mechanism; 807, adjusting screw; 808, stretch block; 9, screw nut; 901, connecting rod; 10, discharge tray.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

Please refer to FIG. 1 to FIG. 8 , an embodiment provided by the present invention: an ultra-long steam turbine generator hoisting device, comprising a base 1 and a lifting platform 2; two sets of pulleys and six sets of pulleys are fixedly arranged on both sides of the bottom of the base 1 Universal wheel; two sets of guide columns 101 are integrally provided on both sides of the top of the base 1 ; both sides of the lifting platform 2 are integrally provided with lifting platform columns 201 , and the bottom inner side of the lifting platform column 201 is provided with square grooves; The guide columns 101 are all slidably connected to the square grooves of the lift table column 201, and a hydraulic lift 102 is fixed between the base 1 and the lift table 2; wherein the lift table 2 also includes a horizontal plate 202, a guide rod 203, and a short lead screw 204. , hand wheel shaft 205; two groups of uprights are arranged on the top of one side of the lift table 2, the shape of the uprights is the same as that of the lift table post 201, and the uprights are located at the bottom of one side of the sliding device 3, and a horizontal plate 202 is fixed in the middle of the vertical column; A guide rod 203 is fixed between the devices 3, and the guide rod 203 is covered with a spring; a short lead screw 204 is rotated between the horizontal plate 202 and the sliding device 3 through a bearing; one side of the vertical column of the lifting platform 2 passes through two groups of The column is rotatably provided with a hand wheel shaft 205, and the middle of the hand wheel shaft 205 is connected with the short lead screw 204 through a bevel gear; a sliding device 3 is fixed on the top of one side of the lifting platform 2; wherein, the sliding device 3 also includes a pull rod 304 , sliding block 305; the bottom of the axle frame of the side pulley 302 is set in the sliding device 3 by sliding through the guide rail, and the position of the side pulley 302 is staggered with the bottom pulley 301, and the outer ends of the two groups of axle frames outside the side pulley 302 pass through the rotating shaft A pull rod 304 is rotatably provided; the bottom of the pull rod 304 is connected with a sliding block 305; the top of the lifting platform 2 is slidably provided with a movable seat 4 through the guide rail; wherein, the movable seat 4 also includes a bump 401, a push rod 402, and a pedestal 403; The top side of the movable seat 4 is integrally provided with a bump 401, and the middle of the bump 401 is provided with a push rod 402 through clearance fit and sliding; one side of the push rod 402 is a ball head structure, and the other side of the push rod 402 passes through The bolt is fixed with a wafer structure; both sides of the bottom of the pedestal 403 are provided with thin guide rods, and the pedestal 403 is slidably arranged on the top of the movable base 4 through the thin guide rods, and a threaded jack is fixed between the pedestal 403 and the movable base 4 The main body of the pedestal 403 is an L-shaped structure, and the top of the front side of the pedestal 403 is provided with an arc-shaped groove; the top side of the base 1 is integrally provided with a vertical plate 5; wherein, the vertical plate 5 also includes a side plate 501 and a side plate. Guide rod 502; the outer side of the vertical plate 5 is slidably provided with a sliding plate 6 through the side plate 501 and the side guide rod 502, and the top side of the sliding plate 6 is fixedly provided with a motor 7; seat 8; wherein, the middle seat 8 also includes a screw 801; the top of the middle seat 8 is integrally provided with a screw 801; the middle of both sides of the sliding plate 6 is provided with a T-type nut through the rotation of the shaft, and the screw 801 and the nut thread The outer end of the nut is set to a worm gear structure; the top of the intermediate seat 8 is rotated by the rotating shaft and is provided with a worm, and The worm and the motor 7 are connected by means of a coupling; the sliding device 3 also includes a bottom pulley 301, a side pulley 302, and a connecting bar 303; The side axle frames are provided with sliding rods and are fixedly connected with connecting bars 303 through both sides of the sliding device 3 , and the side pulleys 302 are all tapered wheel structures;

Among them, the middle seat 8 also includes a side frame plate 802, a corner block 803, a buckle 804 and a scissor mechanism 806; the middle seat 8 is provided with side frame plates 802 on both sides, and the side frame plates 802 are fixedly arranged between them. There is a scissor mechanism 806; the outer bottom of the side frame plate 802 is integrally provided with a corner block 803, and the middle of the corner block 803 is provided with a buckle 804 to rotate through a bearing; the top rotating shaft of the buckle 804 passes through the edge The corner blocks 803 are fixedly provided with gears through key connections; the buckles 804 are all arc-shaped structures, and the inner edges of the buckles 804 are rounded.

The middle seat 8 also includes a rack 805, an adjusting screw 807 and a stretch block 808; the outer bottom of the side frame plate 802 is slidably provided with a rack 805 through the guide rail, and the outer side of the rack 805 is connected to the top of the buckle 804. The gears are meshed; the outer bottom of one group of the middle seat 8 is slidably provided with a stretch block 808 through a long guide rod, and both sides of the stretch block 808 are integrally provided with cross bars and are slidably connected through the racks 805 on both sides; the middle seat 8 The outer side of one group is provided with a nut 9 through the guide rail, and the outer side of the intermediate seat 8 is provided with an adjusting screw 807 to be threadedly connected with the nut 9; Rotating connection with the top of the stretch block 808.

Working principle: when in use, place the motor rotor on the discharge tray 10, pull the sliding plate 6 out to the top of the discharge tray 10, start the motor 7, the motor 7 drives the worm to rotate, and the worm drives the worm wheel to rotate. The two sets of screws 801 are lowered, and at the same time the middle seat 8 and the side frame plate 802 are lowered, the side frame plate 802 is placed against both sides of the rotor, and the adjusting screw 807 is rotated. The nut 9 pushes the connecting rod 901 to the outside, and uses the pulling force to pull the rack 805 to one side. The rack 805 cooperates with the gear to rotate the buckle 804, and the outer end of the rotor is clamped by the buckle 804. At the same time, the scissor mechanism 806 Close the side frame plates 802 on both sides inward, and move the buckle 804 inward to fix the rotor; after fixing the stator, the reversing motor 7 lifts the middle seat 8 through the worm drive, and pushes the sliding plate 6 to align the rotor with the sliding device 3 , Slowly lower the lower rotor and drop one end of the rotor into the sliding device 3, at the same time lift the pedestal 403 through the threaded jack, use the pedestal 403 to hold the other end of the rotor, lift and retract the buckle 804 to make the rotor fall into the sliding device 3 , the moving base 1 aligns the sliding device 3 with the motor housing, and uses the push rod 402 to push the moving base 4 to push the rotor into the motor housing for assembly.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (8)

1. The utility model provides a overlength turbo generator hoist device which characterized in that: comprises a base (1) and a lifting platform (2); two groups of pulleys and six groups of universal wheels are fixedly arranged on two sides of the bottom of the base (1); two groups of guide columns (101) are uniformly arranged on two sides of the top of the base (1); the tops of the two sides of the lifting table (2) are uniformly provided with lifting table columns (201), and the inner sides of the bottoms of the lifting table columns (201) are provided with square grooves; the guide columns (101) are all connected with the square groove of the lifting platform column (201) in a sliding mode, and a hydraulic lifter (102) is fixedly arranged between the base (1) and the lifting platform (2); a sliding device (3) is fixedly arranged at the top of one side of the lifting platform (2); the top of the lifting platform (2) is provided with a movable seat (4) in a sliding way through a guide rail; a vertical plate (5) is integrally arranged on one side of the top of the base (1); the sliding device (3) further comprises a bottom pulley (301), a side pulley (302) and a connecting bar (303); two groups of bottom pulleys (301) are rotatably arranged on the inner side of the top of the sliding device (3); the shaft brackets on the two sides of the side pulley (302) are both provided with sliding rods and fixedly connected with connecting strips (303) penetrating through the two sides of the sliding device (3), and the side pulley (302) is of a conical wheel structure; a discharging support (10) is fixedly arranged on one side of the top of the base (1).

2. The hoisting device of the super-long steam turbine generator according to claim 1, characterized in that: the lifting platform (2) further comprises a transverse plate (202), a guide rod (203), a short lead screw (204) and a hand wheel shaft (205); two groups of upright columns are arranged at the top of one side of the lifting table (2), the appearance of each upright column is consistent with that of the lifting table column (201), the upright columns are positioned at the bottom of one side of the sliding device (3), and a transverse plate (202) is fixedly arranged in the middle of each upright column; a guide rod (203) is fixedly arranged between the transverse plate (202) and the sliding device (3), and a spring is sleeved outside the guide rod (203); a short screw rod (204) is rotatably arranged between the transverse plate (202) and the sliding device (3) through a bearing; one side of the upright post of the lifting platform (2) penetrates through the two sets of upright posts to be rotatably provided with hand wheel shafts (205), and the middle of each hand wheel shaft (205) is in transmission connection with the short screw rod (204) through a bevel gear.

3. The hoisting device of the super-long steam turbine generator according to claim 1, characterized in that: the sliding device (3) also comprises a pull rod (304) and a sliding block (305); the bottoms of the shaft brackets of the side pulleys (302) are arranged in the sliding device (3) in a sliding mode through guide rails in a sliding mode, the positions of the side pulleys (302) are staggered with the position of the bottom pulley (301), and the outer ends of two groups of shaft brackets close to the outer side of each side pulley (302) are respectively provided with a pull rod (304) in a rotating mode through a rotating shaft; the bottom of the pull rod (304) is connected with a sliding block (305).

4. The hoisting device of the super-long steam turbine generator according to claim 1, characterized in that: the moving seat (4) also comprises a convex block (401), a push rod (402) and a seat (403); a convex block (401) is integrally arranged on one side of the top of the moving seat (4), and a push rod (402) is arranged in the middle of the convex block (401) in a sliding manner in a clearance fit manner; one side of the push rod (402) is of a ball head structure, and the other side of the push rod (402) is fixedly provided with a circular disc structure through a bolt; both sides of the bottom of the pedestal (403) are provided with thin guide rods, the pedestal (403) is arranged at the top of the movable seat (4) in a sliding manner through the thin guide rods, and a screw jack is fixedly arranged between the pedestal (403) and the movable seat (4); the main part of pedestal (403) is L type structure, and the front side top of pedestal (403) has seted up the arc wall.

5. The hoisting device of the super-long steam turbine generator according to claim 1, characterized in that: the vertical plate (5) also comprises a side plate (501) and a side guide rod (502); a sliding plate (6) is arranged on the outer side of the vertical plate (5) in a sliding mode through a side plate (501) and a side guide rod (502), and a motor (7) is fixedly arranged on one side of the top of the sliding plate (6); and the two sides of the bottom of the sliding plate (6) are both provided with middle seats (8) in a sliding manner.

6. The hoisting device of the super-long steam turbine generator according to claim 5, characterized in that: the middle seat (8) also comprises a screw (801); the top of the middle seat (8) is integrally provided with a screw (801); the middle parts of the two sides of the sliding plate (6) are respectively provided with a T-shaped nut in a rotating mode through a rotating shaft, the screw (801) is in threaded connection with the nuts, and the outer ends of the nuts are respectively provided with a worm gear structure; the top of the middle seat (8) is provided with a worm in a rotating mode through a rotating shaft, and the worm is in transmission connection with the motor (7) through a coupler.

7. The hoisting device of the super-long steam turbine generator according to claim 6, characterized in that: the middle seat (8) further comprises a side frame plate (802), a corner block (803), a buckle (804) and a shearing fork mechanism (806); side frame plates (802) penetrate through two sides of the middle seat (8), and a scissor fork mechanism (806) is fixedly arranged between the side frame plates (802); corner blocks (803) are uniformly arranged at the bottoms of the outer sides of the side frame plates (802), and buckles (804) are rotatably arranged in the middles of the corner blocks (803) through bearings; the top rotating shafts of the buckles (804) penetrate through the corner blocks (803) and are fixedly provided with gears through key connection; the buckles (804) are all arc-shaped structures, and the inner side edges of the buckles (804) are rounded.

8. The hoisting device of the super-long steam turbine generator according to claim 7, characterized in that: the middle seat (8) also comprises a rack (805), an adjusting lead screw (807) and a stretching block (808); racks (805) are arranged at the bottoms of the outer sides of the side frame plates (802) in a sliding mode through guide rails, and the outer sides of the racks (805) are meshed with gears at the tops of the buckles (804); the outer bottom of one group of the middle seats (8) is provided with a stretching block (808) in a sliding way through a long guide rod, and cross rods are uniformly arranged on the two sides of the stretching block (808) and penetrate through racks (805) on the two sides to be connected in a sliding way; the outer side of one group of the middle seats (8) is provided with a nut (9) in a sliding mode through a guide rail, and the outer side of the middle seat (8) is provided with an adjusting screw rod (807) in threaded connection with the nut (9); the outer side of the nut (9) is rotatably provided with a connecting rod (901) through a rotating shaft, and the connecting rod (901) is rotatably connected with the top of the stretching block (808).

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