CN214366245U

CN214366245U - Special barring gear for overhaul of 100MW power generation steam turbine

Info

Publication number: CN214366245U
Application number: CN202022893909.8U
Authority: CN
Inventors: 苗兴广; 高红延; 潘俊杰
Original assignee: Shanxi Jianlong Industrial Co Ltd
Current assignee: Shanxi Jianlong Industrial Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-10-08
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses a special barring gear of 100MW power generation steam turbine overhaul, comprises a workbench, the top welded mounting of workstation has the base, and the top welded mounting of base has the steam turbine, and the drive shaft of steam turbine is located the outside one section welded mounting of steam turbine and has the second gear, and the drive shaft of steam turbine is located the outside one end welded mounting of steam turbine and has the steam turbine shaft coupling. This special barring device of 100MW power generation steam turbine overhaul, as the installation means through screw hole and bolt, easy dismounting does not need electric operation, thereby barring work efficiency has been improved greatly, this device drives the rotor through the meshing of doing work piece and second gear and rotates with the steam turbine shaft coupling simultaneously, cause the device rotational speed when barring slower, the angle is accurate, the practicality of device has been improved greatly, this device is carrying out shaft coupling alignment simultaneously, measure the atmoseal clearance, when the axial compressor clearance, the overhead traveling crane can carry out other hoist and mount operations, thereby whole annual repair progress has been improved greatly.

Description

Special barring gear for overhaul of 100MW power generation steam turbine

Technical Field

The utility model relates to a steam turbine technical field especially relates to special barring gear of 100MW power generation steam turbine overhaul.

Background

The design has the jackshaft oil when steam turbine moves, and when overhauing, the oil pump stops the back, and the rotor barring is difficult, and chain tong spanner barring ware can't realize artifical barring. When the rotor needs to be turned, a steel wire rope can only be wound on a rotor shaft, the rotor is turned by lifting a small hook of an overhead travelling crane, other hoisting work, cross work and mutual influence are caused while a coupler is aligned and a gas seal gap and an axial flow gap are measured, the maintenance efficiency is reduced, the overhead travelling crane is turned, particularly when the coupler is aligned, the rotation angle is not well controlled, the operation efficiency is reduced, and a set of special turning tool is specially considered to be manufactured in order to improve the maintenance operation efficiency.

SUMMERY OF THE UTILITY MODEL

The not enough to prior art, the utility model provides a special barring gear of 100MW power generation steam turbine overhaul has solved when the shaft coupling looks for, and turned angle is not good to be held, causes the problem that operating efficiency descends.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the special barring device for overhaul of the 100MW power generation turbine comprises a workbench, wherein a base is welded and installed on the top of the workbench, a turbine is welded and installed on the top of the base, a second gear is welded and installed on a section, located outside the turbine, of a driving shaft of the turbine, a turbine coupler is welded and installed on one end, located outside the turbine, of the driving shaft of the turbine, the barring device is fixedly installed on the top of the base, located right in front of the second gear through bolts, the bottom of the workbench is welded and installed with a fixed shell, a first gear is rotatably installed inside the front side and the back side of the fixed shell, a connecting rod and a sliding rod are arranged in the fixed shell, longitudinally penetrate through the fixed shell and extend to the outer side of the top of the workbench, the sliding rod and the connecting rod are arranged in a sliding connection mode, an installation plate is welded and installed on one end, located outside the top of the workbench, and a first motor is welded and installed on the top of the installation plate, the second motor is welded on the front side wall of the fixed shell, and the output end of the second motor longitudinally penetrates through the front side wall of the fixed shell through the coupler and is connected with the rotating shaft of the first gear in a welding mode

Preferably, the bottom welding machine of workstation installs the supporting leg, and the quantity of supporting leg is four groups and is the rectangular array and arranges.

Preferably, the barring device comprises mounting, connecting rod, work piece, mount pad and handle, sets up threaded hole on the mount pad, and the top welded mounting of mount pad has the mounting, and the quantity of mounting is two sets of and be the parallel and correspond the setting, and the connecting rod is installed in the corresponding lateral wall rotation of mounting, and the lateral wall welded mounting of connecting rod has work piece and handle, and work piece is to correspond the setting and work piece is the seven forms of digit with the handle.

Preferably, the working element is positioned right in front of the second gear, and the free end of the working element can be meshed with the second gear.

Preferably, a rack is welded on one side wall of the connecting rod and meshed with the first gear, and two groups of sliding rods are sequentially arranged on two sides of the first gear.

Preferably, the output end of the first motor is welded with a first motor coupler clamped with the steam turbine coupler.

Compared with the prior art, the beneficial effects of the utility model are that: this special barring device of 100MW power generation steam turbine overhaul, as the installation means through screw hole and bolt, easy dismounting does not need electric operation, thereby barring work efficiency has been improved greatly, this device drives the rotor through the meshing of doing work piece and second gear and rotates with the steam turbine shaft coupling simultaneously, cause the device rotational speed when barring slower, the angle is accurate, the practicality of device has been improved greatly, this device is carrying out shaft coupling alignment simultaneously, measure the atmoseal clearance, when the axial compressor clearance, the overhead traveling crane can carry out other hoist and mount operations, thereby whole annual repair progress has been improved greatly.

Drawings

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

fig. 2 is a front view schematically illustrating the present invention;

fig. 3 is the structure schematic diagram of the middle barring gear of the utility model:

fig. 4 is a schematic diagram of the position structure of the second gear and the working element of the present invention.

In the figure, 1 a first motor, 2 a mounting plate, 3 a workbench, 4 supporting legs, 5 a first gear, 6 connecting rods, 7 sliding rods, 8 fixing shells, 9 bases, 10 turning gear devices, 1001 fixing parts, 1002 connecting rods, 1003 working parts, 1004 mounting bases, 1005 handles, 11 a second gear, 12 a steam turbine, 13 a first motor coupler, 14 a steam turbine coupler and 15 a second motor.

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 order to achieve the above purpose, as shown in fig. 1-4, the present invention adopts the following technical solutions: the special barring gear for overhauling the 100MW power generation turbine comprises a workbench 3, wherein supporting legs 4 are installed at the bottom of the workbench 3 through a welding machine, the number of the supporting legs 4 is four, the supporting legs are arranged in a rectangular array, a base 9 is installed at the top of the workbench 3 in a welding mode, a turbine 12 is installed at the top of the base 9 in a welding mode, a second gear 11 is installed at one section, located outside the turbine 12, of a driving shaft of the turbine 12 in a welding mode, a turbine coupler 14 is installed at one end, located outside the turbine 12, of the driving shaft of the turbine 12 in a welding mode, a barring gear 10 is fixedly installed at the top of the base 9, located right in front of the second gear 11 through bolts, the barring gear 10 is composed of a fixing part 1001, a connecting rod 1002, a power-making part 1003, a mounting seat 1004 and a handle 1005, a threaded hole 1006 is formed in the mounting seat 1004, fixing parts 1001 are installed at the top of the mounting seat 1004 in a welding mode, the number of the fixing parts 1001 are two groups and are arranged in parallel correspondence, a connecting rod 1002 is rotatably mounted on the corresponding side wall of the fixing part 1001, a working part 1003 and a handle 1005 are welded on the outer side wall of the connecting rod 1002, the working part 1003 and the handle 1005 are correspondingly arranged, the working part 1003 is in a seven-figure shape, the working part 1003 is positioned right in front of the second gear 11, the free end of the working part 1003 can be meshed with the second gear 11, a fixing shell 8 is welded on the bottom of the workbench 3, a first gear 5 is rotatably mounted in the front and back sides of the fixing shell 8, a connecting rod 6 and a sliding rod 7 are mounted in the fixing shell 8, a rack is welded on one side wall of the connecting rod 6 and meshed with the first gear 5, two sets of sliding rods 7 are sequentially positioned on two sides of the first gear 5, the

sliding rods

7 and 6 longitudinally penetrate through the fixing shell 8 and extend to the outer side of the top of the workbench 3, the

sliding rods

7 and 6 are slidably connected with the workbench 3, a mounting plate 2 is welded on one end of the

sliding rods

7 and 6 positioned on the outer side of the top of the workbench, first motor 1 is installed in the top welding of mounting panel 2, and the output welded mounting of first motor 1 has the first motor coupling 13 with steam turbine coupling 14 looks joint, and the preceding lateral wall welded mounting of set casing 8 has second motor 15, and the output of second motor 15 vertically runs through the preceding lateral wall of set casing 8 through the shaft coupling and sets up with the pivot welded connection of first gear 5.

The working principle is as follows: when the steam turbine stops working and the rotor needs to be turned, the turning gear 10 is installed right ahead of the second gear 11 through the bolt, meanwhile, the second motor 15 is driven to drive the first gear 5 to rotate so as to enable the mounting plate 2 to move longitudinally, so that the first motor 1 is driven to adjust according to the position height required by an operation site, after the first motor 1 is adjusted, the working piece 1003 on the turning gear 10 is meshed with the second gear 11, the handle 1005 is pressed simultaneously, the working piece 1003 is enabled to stress the second gear 11, and the steam turbine coupler 14 is enabled to rotate to the angle required by a worker.

In summary, the following steps: this special barring device of 100MW power generation steam turbine overhaul, as the installation means through screw hole 1006 and bolt, easy dismounting, do not need electric operation, thereby barring work efficiency has been improved greatly, this device drives rotor and steam turbine shaft coupling 14 through the meshing of doing work 1003 and second gear 11 simultaneously and rotates, it is slower to cause the device rotational speed when barring, the angle is accurate, the practicality of device has been improved greatly, this device is carrying out the shaft coupling alignment simultaneously, measure the atmoseal clearance, when the axial compressor clearance, the overhead traveling crane can carry out other hoist and mount operations, thereby whole annual repair progress has been improved greatly.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1.100MW power generation steam turbine overhaul special barring device, including workstation (3), a serial communication port, the top welded mounting of workstation (3) has base (9), the top welded mounting of base (9) has steam turbine (12), the drive shaft of steam turbine (12) is located one section welded mounting in steam turbine (12) outside and has second gear (11), the drive shaft of steam turbine (12) is located the outside one end welded mounting of steam turbine (12) and has steam turbine shaft coupling (14), the top of base (9) is located the dead ahead of second gear (11) and has barring device (10) through bolt fixed mounting, the bottom welded mounting of workstation (3) has set casing (8), the inside rotation in front and back side of set casing (8) installs first gear (5), set casing (8) built-in connecting rod (6) and slide bar (7), slide bar (7) and connecting rod (6) all vertically run through set casing (8) and extend to the top outside and slide bar of workstation (3), slide bar (7) and slide bar (6) are all vertically (7) All set up with workstation (3) sliding connection with connecting rod (6), slide bar (7) are located workstation top outside one end welded mounting and have mounting panel (2) with connecting rod (6), the top welded mounting of mounting panel (2) has first motor (1), the preceding lateral wall welded mounting of set casing (8) has second motor (15), the output of second motor (15) vertically runs through the preceding lateral wall of set casing (8) and sets up with the pivot welded connection of first gear (5) through the shaft coupling.

2. The special barring gear for overhaul of a 100MW power generation steam turbine according to claim 1, wherein the bottom welding machine of the workbench (3) is provided with support legs (4), and the number of the support legs (4) is four and is arranged in a rectangular array.

3. The special barring device for overhauling of the 100MW power generation steam turbine according to claim 1, wherein the barring device (10) comprises fixing pieces (1001), connecting rods (1002), acting pieces (1003), a mounting seat (1004) and a handle (1005), a threaded hole (1006) is formed in the mounting seat (1004), the fixing pieces (1001) are welded to the top of the mounting seat (1004), the fixing pieces (1001) are arranged in two groups and arranged in parallel and correspondingly, the connecting rods (1002) are rotatably arranged on corresponding side walls of the fixing pieces (1001), the acting pieces (1003) and the handle (1005) are welded to outer side walls of the connecting rods (1002), and the acting pieces (1003) and the handle (1005) are arranged correspondingly and the acting pieces (1003) are in a seven-shaped figure.

4. The barring device special for overhaul of a 100MW power generation steam turbine according to claim 3, wherein the acting part (1003) is positioned right in front of the second gear (11) and a free end of the acting part (1003) can be meshed with the second gear (11).

5. The barring device special for overhaul of a 100MW power generation steam turbine according to claim 1, wherein a rack is welded to one side wall of the connecting rod (6) and meshed with the first gear (5), and two groups of sliding rods (7) are sequentially arranged on two sides of the first gear (5).

6. The special barring gear for the overhaul of a 100MW power generation steam turbine according to claim 1, wherein the output end of the first motor (1) is welded with a first motor coupler (13) clamped with a steam turbine coupler (14).