CN211393618U

CN211393618U - Turning gear for overhauling or installing water turbine

Info

Publication number: CN211393618U
Application number: CN201922268478.3U
Authority: CN
Inventors: 刘钊; 黄金库
Original assignee: China Yangtze Power Co Ltd
Current assignee: China Yangtze Power Co Ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-09-01
Anticipated expiration: 2029-12-17

Abstract

The hydraulic turbine overhauls or installs barring device, including the overhead traveling crane, threaded connection has the housing at the support on the hydraulic turbine, and threaded connection has the bevel gear case in the housing, and the bevel gear case output shaft passes and is connected with hydraulic turbine dish axle transmission through the shaft coupling behind the support, and the bevel gear case input shaft passes behind the housing and is connected with the drum that sets up outside the housing, and the winding has the hoist and mount rope on the drum, hoist and mount rope one end and drum fixed connection, and one end is connected on the overhead traveling crane lifting hook in addition. The utility model is used for solve the inconvenient problem of wiring power supply and upstairs, downstairs barring measurement communication that use the motor to lead to in the current hydraulic turbine barring.

Description

Turning gear for overhauling or installing water turbine

Technical Field

The utility model relates to a hydraulic turbine overhauls or installs barring gear.

Background

The power station hydraulic turbine is in the in-process of equipment or maintenance, need connect different position to measure between generator and the impeller through the mode of carrying out the barring to the hydraulic turbine, with the axiality of adjustment unit, center and impeller clearance, present barring measurement mode uses socket spanner and the manual rotatory hydraulic turbine motor dish axletree of application of force pole like in figure 1 many workers on the workshop building, other workman use the percentage table to measure hydraulic turbine impeller and generator output shaft flange downstairs, and mark skew position and direction, this kind of barring mode needs many people just can accomplish the operation, increase the human cost of enterprise.

In order to solve the above problems, there are some corresponding solutions in the prior art, such as patent No. CN107387453A entitled "large vertical water pump (turbine) unit overhaul intelligent barring gear"; the device has the patent number of CN201433846Y and is named as a mechanical turning gear of a water turbine; and the patent number is "CN 105257452A", the name is "a hydraulic turbine uses the electrical machinery barring gear", these barring gear adopt the motor to drive the axle rotation of the disc without exception; on one hand, the motor is used for driving, the wiring and power supply of the motor are very troublesome, the power can be supplied only by working procedures of issuing a work ticket, operating the ticket, testing the power of the electrical cabinet, breaking a gate, placing a safety mark, protecting a power supply cable and the like, and the time is very delayed; on the other hand, the upstairs and downstairs of the water turbine room are completely separated, the switch for controlling the starting and stopping of the motor is upstairs, and the downstairs measuring workers control the starting and stopping of the motor and mainly inform upstairs personnel to operate by using the interphone, so that the communication is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that the hydraulic turbine overhauls or installs barring gear for use the inconvenient and upstairs, the downstairs problem of linking up inconveniently of wiring power supply that leads to of motor in solving current hydraulic turbine barring measure.

In order to solve the above problem, the to-be-solved technical scheme of the utility model is:

the hydraulic turbine overhauls or installs barring device, including the overhead traveling crane, threaded connection has the housing at the support on the hydraulic turbine, and threaded connection has the bevel gear case in the housing, and the bevel gear case output shaft passes and is connected with hydraulic turbine dish axle transmission through the shaft coupling behind the support, and the bevel gear case input shaft passes behind the housing and is connected with the drum that sets up outside the housing, and the winding has the hoist and mount rope on the drum, hoist and mount rope one end and drum fixed connection, and one end is connected on the overhead traveling crane lifting hook in addition.

The bevel gear case is the triaxial bevel gear case, and the triaxial bevel gear case has an output shaft and two input shafts, and two input shafts pass behind the housing and are connected with a drum respectively, all twine on each drum and have the hoist and mount rope, are equipped with the jib above the housing, and the jib middle part passes through wire rope and connects the overhead traveling crane lifting hook, and each hoist and mount rope is connected respectively at the jib both ends on two drums.

The hoisting rope is a nylon hoisting rope.

A planetary reducer is installed on the support, and an output shaft of the bevel gear box is in transmission connection with a water turbine disc axle through the planetary reducer and a coupler.

The technical effects of the utility model are that: in the process that a crown block in the hydraulic turbine room pulls a hoisting rope wound on a wire coil, the hoisting rope pulled out of the wire coil drives the wire coil to rotate, and the rotating wire coil drives a hydraulic turbine turning shaft to rotate through an umbrella gear box so as to replace manpower to complete turning operation of the hydraulic turbine, so that the labor intensity of workers is reduced, and operation implementation personnel are reduced; on the other hand, the crown block in the water turbine room is used as power to replace a motor in the prior art, so that additional power supply for a connecting line is not needed; on the other hand, the downstairs measuring personnel can control the lifting of the crane hook through the crane remote controller so as to realize downstairs control of the water turbine barring.

Drawings

The invention will be further explained with reference to the drawings:

FIG. 1 is a schematic sectional view of the present invention,

fig. 2 is a schematic diagram of the local enlarged structure of the present invention.

In the figure: the system comprises a factory building 1, a crown block 2, a suspender 3, a housing 4, a bracket 5, a water turbine 6, a bevel gear box 7, a hoisting rope 8, a wire coil 9, a planetary reducer 10, an upstairs 11, a downstairs 12, a lifting hook 21, a generator 61, a flange 62, an impeller 63 and a coupling 71.

Detailed Description

As shown in fig. 1 and 2, the hydraulic turbine overhauls or installs barring gear, including setting up wireless remote control overhead traveling crane 2 in the 6 factory buildings of hydraulic turbine, threaded connection is at support 5 on hydraulic turbine 6 support 5, threaded connection has housing 4 on support 5, fixed mounting has bevel gear case 7 in the housing 4, bevel gear case 7 output shaft passes behind the support 5 and is connected with 6 barring axle transmissions of hydraulic turbine through shaft coupling 71, bevel gear case 7 input shaft passes behind housing 4 and is connected with the drum 9 that sets up outside housing 4, the winding has hoist rope 8 on drum 9, hoist rope 8 one end and drum 9 fixed connection, one end is connected on overhead traveling crane 2 lifting hook 21 in addition.

The utility model discloses a use method does: firstly fixing one end of a hoisting rope 8 on a wire coil 9, winding the hoisting rope 8 outside the wire coil 9, after a crown block 2 moves above the wire coil 9, connecting a hoisting hook 21 of the crown block 2 with one end of the hoisting rope 8, controlling a hoisting hook 21 of the crown block 2 to ascend through a remote controller by upstairs 11 workers so as to tension the hoisting rope 8, sending the remote controller to downstairs 12 by upstairs 11 workers, erecting a dial indicator for measurement by downstairs 12 workers, controlling the hoisting hook 21 of the crown block 2 through the remote controller by the workers at downstairs 12, recording the offset of a connecting flange 62 after the hoisting hook 21 of the crown block 2 ascends, driving a water turbine wheel shaft to rotate by the rotating wire coil 9 through a bevel gear box 7 so as to replace manual work to finish the turning operation of the water turbine 6, recording the offset of the connecting flange 62 after an impeller 63 of the water turbine 6 and an output shaft connecting flange 62 of a generator 61 rotate for one circle, and loosening, and the staff adjusts and corrects the generator 61 of the water turbine 6 according to the recorded offset.

Bevel gear case 7 is triaxial bevel gear case 7, and triaxial bevel gear case 7 has an output shaft and two input shafts, and two input shafts pass behind housing 4 and are connected with a drum 9 respectively, all twine on each drum 9 and have hoist and mount rope 8, are equipped with jib 3 above

housing

4, and 2 lifting hooks 21 of overhead traveling crane are connected through wire rope in the middle part of jib 3, and each hoist and mount rope 8 is connected respectively at jib 3 both ends on two drums 9. The suspender 3 pulls the wire coil 9 to rotate from two sides through the hoisting rope 8, so that the tension is balanced, and the wire coil 9 is prevented from being inclined in the process of turning.

The hoisting rope 8 is a nylon hoisting rope 8. Nylon hoist and mount rope 8 compares wire rope more comparatively soft, makes things convenient for the workman to twine hoist and mount rope 8 on drum 9.

A planetary reducer 10 is installed on the bracket 5, and an output shaft of the bevel gear box 7 is in transmission connection with a turning shaft of the water turbine 6 through the planetary reducer 10 and a coupler 71. The planetary reducer 10 is used for increasing the turning moment and reducing the load of the crown block 2.

Claims

1. Hydraulic turbine overhauls or installation barring gear, including overhead traveling crane (2), its characterized in that: support (5) of threaded connection on hydraulic turbine (6), threaded connection has housing (4) on support (5), housing (4) internal fixation installs bevel gear case (7), bevel gear case (7) output shaft passes and is connected with hydraulic turbine (6) barring axle transmission through shaft coupling (71) after support (5), bevel gear case (7) input shaft passes behind housing (4) and is connected with drum (9) that set up outside housing (4), the winding has hoist and mount rope (8) on drum (9), hoist and mount rope (8) one end and drum (9) fixed connection, one end is connected on overhead traveling crane (2) lifting hook (21) in addition.

2. The turbine service or installation barring gear of claim 1, wherein: bevel gear case (7) are triaxial bevel gear case (7), triaxial bevel gear case (7) have an output shaft and two input shafts, two input shafts pass behind housing (4) and are connected with a drum (9) respectively, all twine on each drum (9) and have hoist and mount rope (8), be equipped with jib (3) above housing (4), jib (3) middle part is passed through wire rope and is connected overhead traveling crane (2) lifting hook (21), respectively hoist and mount rope (8) and connect respectively at jib (3) both ends on two drums (9).

3. A turbine service or installation jigger assembly as claimed in claim 1 or 2, wherein: the hoisting rope (8) is a nylon hoisting rope (8).

4. A turbine service or installation jigger assembly as claimed in claim 1 or 2, wherein: a planetary reducer (10) is installed on the support (5), and an output shaft of the bevel gear box (7) is in transmission connection with a turning shaft of the water turbine (6) through the planetary reducer (10) and a coupler (71).