CN219771485U - Turning device of hydraulic generator group lens plate - Google Patents

Abstract

The utility model discloses a turning device of a hydraulic generator set lens plate, which comprises a first hanging plate and a second hanging plate, wherein a plurality of groups of bolt holes are formed in the first hanging plate and the second hanging plate; the first hanging plate and the second hanging plate are uniformly and integrally formed with a plurality of protruding blocks for abutting against the mirror plate, four hanging holes are formed in the first hanging plate and the second hanging plate, and the hanging holes are formed in the protruding blocks; the device further comprises at least four groups of screw rod propping mechanisms connected between the first hanging plate and the second hanging plate, wherein the screw rod propping mechanisms are used for radially limiting the mirror plate between the first hanging plate and the second hanging plate. The turnover device for the lens plates of the hydraulic generator set can replace an overhaul mode of integrally turning the lens plates of the thrust head, namely, the lens plates with the weight of 12 tons are singly turned over to replace the integral turning of the lens plates of the thrust head with the weight of 80 tons, so that the workload of assembling and disassembling the lens plates of the thrust head is reduced, and the working efficiency of turning the lens plates is improved.

Description

Turning device of hydraulic generator group lens plate

Technical Field

The utility model belongs to the technical field of overhauling of hydro-generator sets, and particularly relates to a turning device for a lens plate of a hydro-generator set.

Background

In the vertical hydroelectric generating set, the mirror plate is arranged below the thrust head and plays a role in bearing axial water thrust of the water turbine, and the smooth surface of the mirror plate and the thrust pad form a thrust bearing.

In hydroelectric set overhauls work, the thickness of thin mirror plate is about 80mm, and when mirror plate inspection processing handled, mirror plate generally stands up with the thrust collar is integrative, carries out inspection processing to the mirror plate again and handles, when handling mirror plate blank, because there is not threaded connection hole, the current hoist and mount of mirror plate stand up can only adopt the suspender mode of binding, and hoist and mount process is easy to swing, and the suspender is easy damaged, and the security risk is great.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a turning device for a lens plate of a hydraulic generator set, which solves the problems of difficult turning and high safety risk before the lens plate is inspected and processed, improves the turning working efficiency and the safety reliability of a thin lens plate, and avoids the risk of hanging belt damage.

The technical purpose of the utility model is realized by the following technical scheme: the utility model provides a turning device of hydraulic generator group lens board, includes two first hanger plates and second hanger plates that mutually support, first hanger plate and second hanger plate are rectangle, and the length-width ratio is 3:1, set up multiunit bolt hole on first hanger plate and the second hanger plate for realize the connection and the split of first hanger plate and second hanger plate, the uniform body shaping has a plurality of lugs that are used for with lens board butt on first hanger plate and the second hanger plate, set up four lifting holes on first hanger plate and the second hanger plate, the hoisting point is seted up on the lug; the device comprises a first hanging plate, a second hanging plate, at least four groups of screw rod propping mechanisms, a first hanging plate and a second hanging plate, wherein the screw rod propping mechanisms are connected between the first hanging plate and the second hanging plate, the screw rod propping mechanisms are used for radially limiting the mirror plate between the first hanging plate and the second hanging plate, so that the mirror plate is stably turned over after being limited by the end faces of the first hanging plate and the second hanging plate and the radial limit of the screw rod propping mechanisms, and the four groups of screw rod propping mechanisms are all connected to the middle line of the first hanging plate and the middle line of the second hanging plate.

Preferably, the screw tightening mechanism comprises a fixing seat connected with the first hanging plate and the second hanging plate through bolts, the fixing seat is internally connected with a screw in a threaded manner, one end of the screw is connected with a nut, the other end of the screw is connected with a tightening block, and the tightening block is used for completing radial limiting on the mirror plate.

Compared with the prior art, the utility model has the following beneficial effects:

1. the turnover device for the lens plates of the hydraulic generator set can replace an overhaul mode of integrally turning the lens plates of the thrust head, namely, the lens plates with the weight of 12 tons are singly turned over to replace the integral turning of the lens plates of the thrust head with the weight of 80 tons, so that the workload of assembling and disassembling the lens plates of the thrust head is reduced, and the working efficiency of turning over the lens plates is improved.

2. The turning device for the lens plate of the hydraulic generator set solves the problem that the lens plate of the blank piece has no threaded hole and cannot be combined with the thrust head to integrally turn over in a processing link, avoids the safety risks of uneven stress and easy damage of the hanging belt when the hanging belt binds the lens plate, and improves the safety and reliability of the turning operation of the lens plate.

3. The turning device for the lens plate of the hydraulic generator set provided by the utility model has the advantages of simple structure, convenience in installation and reference significance for the lens plate with the thickness of more than 200 mm.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model.

Fig. 2 is a schematic view of a first hanger plate according to an embodiment of the present utility model.

Fig. 3 is a schematic view of a structure of a first hanger plate after mounting a mirror plate in an embodiment of the present utility model.

FIG. 4 is a schematic diagram of an implementation of an embodiment of the present utility model.

FIG. 5 is a schematic view of a screw tightening mechanism according to an embodiment of the present utility model.

Fig. 6-14 are step diagrams of the implementation of the present utility model.

In the above figures: 1. a first hanger plate; 11. bolt holes; 12. a lifting point; 2. a second hanger plate; 3. a bump; 4. a screw rod propping mechanism; 41. a fixing seat; 42. a screw; 43. a nut; 44. a tightening block; a. a mirror plate; b. wool felt; c. and (5) supporting piers.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to fig. 4, as a preferred embodiment of the present utility model, the present embodiment provides a turning device for a lens plate of a hydraulic generator set, including two first lifting plates 1 and second lifting plates 2 that are mutually matched, in this embodiment, in order to better control a turning process, the first lifting plates 1 and the second lifting plates 2 are rectangular, and have an aspect ratio of 3:1, so that the stress direction of the lens plate is always in a vertical plane in the process of turning, so that the hoisting process is more controllable, multiple groups of bolt holes 11 are formed on the first lifting plates 1 and the second lifting plates 1, for implementing connection and disconnection of the first lifting plates 1 and the second lifting plates 2, multiple lifting holes 3 for abutting against the lens plate are uniformly formed on the first lifting plates 1 and the second lifting plates 2, four lifting holes 12 are formed on the first lifting plates 1 and the second lifting plates 2, and the lifting points 12 are formed on the protruding blocks 3, and the first lifting plates 1 and the second lifting plates 2 have aspect ratios of 1:2; the lifting device further comprises at least four groups of screw jacking mechanisms 4 connected between the first lifting plate 1 and the second lifting plate 2, wherein the screw jacking mechanisms 4 are used for radially limiting a mirror plate a positioned between the first lifting plate 1 and the second lifting plate 2, so that the mirror plate a can finish stable turning after being limited by the end faces of the first lifting plate 1 and the second lifting plate 2 and the radial limiting of the screw jacking mechanisms 4, and for better control lifting, the four groups of screw jacking mechanisms 4 are connected on the central lines of the first lifting plate 1 and the second lifting plate 2, so that the two groups of screw jacking mechanisms 4 are mutually opposite to prevent unbalanced stress of the mirror plate, displacement occurs in the lifting process, and the mirror plate cannot be adjusted after lifting due to large weight of the mirror plate, so that absolute balance of stress of the mirror plate before lifting is ensured, and the lifting safety is ensured.

In some embodiments, the screw tightening mechanism 4 includes a fixing seat 41 connected with the first hanger plate 1 and the second hanger plate 2 by bolts, a screw 42 is connected to the fixing seat 41 by internal threads, one end of the screw 42 is connected to a nut 43, the other end is connected to a tightening block 44, and the tightening block 44 is used for completing radial limiting on the mirror plate a.

In some preferred embodiments, a rubber backing is also attached to the end of the gripping block 44 that contacts the mirror plate a to prevent damage such as surface scratches to the mirror plate a.

Realize the turning over process of the hydraulic generator set lens plate, specifically include the following steps:

s1, firstly, the first hanging plate 1 is horizontally placed on a buttress c, and referring to FIG. 6, a wool felt b is placed on the contact surface of the first hanging plate and a mirror plate a to protect the working surface of the mirror plate; then the mirror plate a is hoisted and horizontally placed on the first hanging plate 1, so that basic centering is finished, and the stress of the lifting appliance is ensured to be uniform;

s2, placing wool felt b on the contact surface of the mirror plate a and the second hanging plate 2 to protect the working surface of the mirror plate, and referring to fig. 7-9, hanging the second hanging plate on the mirror plate a, and firmly connecting the first hanging plate 1 and the second hanging plate 2 by using a hanging tool fastening bolt to ensure that the required moment is uniform;

s3, installing 4 screw rod propping mechanisms 4, adjusting the screw rod propping mechanisms 4 to contact with the side surface of the mirror plate a, and uniformly stressed propping the mirror plate a;

s4, checking the bolt fastening condition of each part and the contact surface condition of the mirror plate a and the first hanging plate 1 and the second hanging plate 2;

s5, hanging strips or steel wire ropes are arranged on four lifting holes A1, A2, A3 and A4 of the first lifting plate, and referring to FIG. 10, the first lifting plate is lifted;

s6, after the mirror plate is lifted to a certain height enough to turn over, referring to fig. 11, lifting is continued, so that the ends of lifting points A1 and A2 are lifted, the ends of lifting points A3 and A4 are lowered until the mirror plate is in a vertical position, and at the moment, the ends of the lifting points A3 and A4 are not stressed;

s7, adjusting lifting ropes or steel wire ropes at the ends of lifting points A3 and A4 on the first lifting plate to lifting points B3 and B4 of the second lifting plate, and referring to FIG. 13;

s8, continuing to hoist, referring to FIG. 14, lifting ends B3 and B4 rise, and lifting ends A3 and A4 descend until the mirror plate is in a horizontal position;

s9, placing the mirror plate and the turning device on the buttress, removing the hanging strip or the steel wire rope, and finishing the turning work of the mirror plate.

In the description of the present utility model, lifting refers to lifting operations, including lifting upwards and lifting in other directions, and is not to be understood as merely lifting upwards.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (2)

1. A turning device of hydraulic generator group lens board, its characterized in that: the lifting device comprises two first lifting plates and two second lifting plates which are matched with each other, wherein the first lifting plates and the second lifting plates are rectangular, the length-width ratio is 3:1, and a plurality of groups of bolt holes are formed in the first lifting plates and the second lifting plates and are used for realizing connection and disconnection of the first lifting plates and the second lifting plates; the first hanging plate and the second hanging plate are uniformly and integrally formed with a plurality of protruding blocks which are used for being abutted against the mirror plate, four hanging holes are formed in the first hanging plate and the second hanging plate, and the hanging holes are formed in the protruding blocks; the device comprises a first lifting plate, a second lifting plate, at least four groups of screw rod propping mechanisms, a first lifting plate and a second lifting plate, wherein the screw rod propping mechanisms are connected between the first lifting plate and the second lifting plate and are used for radially limiting a mirror plate positioned between the first lifting plate and the second lifting plate, so that the mirror plate is stably turned over after being limited by the end surfaces of the first lifting plate and the second lifting plate and the radial limitation of the screw rod propping mechanisms; the four groups of screw rod jacking mechanisms are connected to the middle lines of the first hanging plate and the second hanging plate.

2. The turning device of a hydraulic generator set mirror plate according to claim 1, wherein: the screw rod jacking mechanism comprises a fixing seat which is connected with the first hanging plate and the second hanging plate through bolts, a screw rod is connected with the fixing seat through internal threads, one end of the screw rod is connected with a nut, the other end of the screw rod is connected with a jacking block, and the jacking block is used for completing radial limiting on the mirror plate.