CN218879135U

CN218879135U - Special tool for hoisting top cover of hydroelectric generating set

Info

Publication number: CN218879135U
Application number: CN202222779336.5U
Authority: CN
Inventors: 李咏超; 刘辉
Original assignee: China Yangtze Power Co Ltd
Current assignee: China Yangtze Power Co Ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-04-18
Anticipated expiration: 2032-10-21

Abstract

The utility model provides a hydroelectric set top cap lifts by crane special frock, including the frock body, the both sides of the bottom of frock body all are provided with the otic placode, the interval of otic placode opposite face equals with the width that lifts by crane the gusset, be provided with on the otic placode can with the connecting hole of the coaxial intercommunication of preformed hole on the gusset that lifts by crane, and the size of connecting hole is the same with the size of preformed hole, the bottom of frock body is provided with the inclined plane of the top surface laminating of connecting hole and lifting by crane the gusset when the connecting hole is coaxial with the preformed hole, connecting hole and preformed hole are run through by the cylindric lock, and the cylindric lock is kept away from one of nut and is served screw-thread fit and be connected with the nut, the external diameter of cylindric lock is the same with the internal diameter of connecting hole, be provided with the lug that is used for connecting the shackle on the frock body. The utility model discloses the effect of security and efficiency that the improvement hydroelectric set top cap lifted by crane has been produced.

Description

Special tool for hoisting top cover of hydroelectric generating set

Technical Field

The utility model relates to a lift by crane frock technical field especially relates to a hydroelectric set top cap lifts by crane special frock.

Background

The diameter of a top cover of a certain hydroelectric generating set is 13.325 meters, the height is about 2.74 meters, the weight is about 340 tons, 4 80Tx23 meters of hanging belts are used for matching with 4 125T shackles during lifting, 4 special lifting rib plates are taken in the symmetrical direction, and the top cover rib plates are bound by adopting a pocket lifting method for lifting. Wherein the edge of the sling contacting the edge surface of the rib plate is protected by 2 cylindrical steels, the edge of the sling contacting the edge surface of the top cover is protected by a wood block, the sharp edge of the guide block of the control ring still contacts and cuts the sling after the sling with the maximum length is adopted under the condition of smooth hanging out according to the calculation of stress, the wood block is padded at the place in the past, but because every suspender length is different (because of the position difference in the lifting hook, or manufacturing process error causes), can cause the top cap to lift by crane the back and produce the slope phenomenon behind the battening wood square, for avoiding causing delay time limit for a project and other incident because of the top cap slope, so need redesign a novel special frock of top cap lift by crane for work such as top cap lifts by crane, transports, repacks to safety, high-efficient completion unit overhauls work.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides a hydroelectric generating set top cap lifts by crane special frock, the easy problem of being cut by the edges and corners of lifting by crane the gusset of suspender when its hoist hydroelectric generating set top cap that has solved existence among the prior art.

According to the embodiment of the utility model, a hydroelectric set top cap lifts by crane special frock, including the frock body, the both sides of the bottom of frock body all are provided with the otic placode, the interval of otic placode opposite face equals with the width that lifts by crane the gusset, be provided with on the otic placode can with lift by crane the connecting hole of the coaxial intercommunication of preformed hole on the gusset, and the size of connecting hole is the same with the size of preformed hole, the bottom of frock body is provided with the inclined plane of the top surface laminating of gusset with lifting by crane when the connecting hole is coaxial with the preformed hole, connecting hole and preformed hole are run through by the cylindric lock, and the cylindric lock keeps away from one of nut and serves threaded fit and be connected with the nut, the external diameter of cylindric lock is the same with the internal diameter of connecting hole, be provided with the lug that is used for connecting the shackle on the frock body.

Preferably, the outer side wall of the tool body is provided with a reinforcing rib connected with the ear plate.

Preferably, the outer side wall of the tool body is provided with a boss in a round table shape, the boss is coaxial with the connecting hole, and one end of the reinforcing rib is connected to the boss.

Preferably, a connecting rib is arranged between the tool body and the lifting lug, and the connecting rib is located on two end faces of the lifting lug.

Preferably, the top end of the reinforcing rib is fixedly connected with one end of the connecting rib.

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

the tool body is inserted on the lifting rib plate through the lug plate at the bottom of the tool body, the bottom surface of the tool body is attached to the top surface of the lifting rib plate, the connection hole and the reserved hole can be conveniently aligned, the cylindrical pin can be conveniently inserted and locked, the lifting lug is connected through the shackle and the lifting strap, direct lifting is carried out, contact between the lifting strap and the lifting rib plate is avoided, the lifting strap is prevented from being cut, and the safety of lifting work is improved; simultaneously, the special frock of lifting by crane compares in ligature suspender to and set up the cushion etc. that the suspender abrasionproof decreases, improved the work efficiency of hoist and mount, use this special frock of lifting by crane after, the time that hydroelectric generator set top cap was lifted out or repack reduces to 0.5 day by original 1.5 days.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural view of another direction according to an embodiment of the present invention.

Fig. 3 is a front view of the embodiment of the present invention.

Fig. 4 is a side view of an embodiment of the present invention.

In the above drawings: 1. lifting the rib plate; 2. a tool body; 3. an ear plate; 4. lifting lugs; 5. a cylindrical pin; 6. a boss; 7. reinforcing ribs; 8. and connecting ribs.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments.

As shown in fig. 1-4, the safety and efficiency of hoisting the top cover of the hydroelectric generating set are improved. The utility model provides a hydroelectric set top cap lifts by crane special frock, including frock body 2, the both sides of the bottom of frock body 2 all are provided with otic placode 3, the interval of the 3 opposite faces of otic placode equals with the width that lifts by crane gusset 1, be provided with on the otic placode 3 can with the connecting hole of the coaxial intercommunication of preformed hole on the gusset 1, and the size of connecting hole is the same with the size of preformed hole, the bottom of frock body 2 is provided with the inclined plane of the top surface laminating of connecting hole and lifting by crane gusset 1 when coaxial with the preformed hole, connecting hole and preformed hole are run through by cylindric lock 5, and cylindric lock 5 keeps away from one of nut and serves threaded fit and is connected with the nut, the external diameter of cylindric lock 5 is the same with the internal diameter of connecting hole, be provided with the lug 4 that is used for connecting the shackle on the frock body 2.

The special tool for hoisting is made of Q460 steel with excellent mechanical property, when the special tool for hoisting and the hoisting rib plate 1 are connected, a gap between the two lug plates 3 is utilized, the top of the hoisting rib plate 1 is inserted between the two lug plates 3, the bottom surface of the tool body 2 is ensured to be attached to the top surface of the hoisting rib plate 1, the tool body 2 slides along the top surface of the hoisting rib plate 1, due to the arrangement of the positions of the connecting holes and the reserved holes on the lug plates 3 and the hoisting rib plate 1, hole site alignment can be smoothly carried out under the condition that the bottom surface of the tool body 2 is attached to the top surface of the hoisting rib plate 1, the cylindrical pin 5 can sequentially penetrate through the connecting holes and the reserved holes, the cylindrical pin 5 is locked through the nuts, the movable end of a sling on a crane is connected with an shackle, the shackle is connected onto the lifting lug 4, four sets of special tools are symmetrically installed during hoisting, and are jointly hoisted.

As shown in fig. 1 to 4, in order to improve the strength of the lug plate 3, the root of the lug plate 3 is prevented from being bent. And a reinforcing rib 7 connected with the ear plate 3 is arranged on the outer side wall of the tool body 2. Connect frock body 2 and otic placode 3 through setting up strengthening rib 7, consolidate the tail end of otic placode 3, avoid otic placode 3 to take place crooked, guarantee when the special frock is lifted by crane in the installation, two otic placodes 3 can carry out centre gripping spacing effectively to lifting by crane gusset 1.

As shown in fig. 4, to facilitate the tightening of the nut by the worker. The outer side wall of the tool body 2 is provided with a boss 6 in a round table shape, the boss 6 is coaxial with the connecting hole, and one end of the reinforcing rib 7 is connected to the boss 6. The boss 6 is arranged, so that the gap between the nut and the lug plate 3 can be increased, a large wrench can clamp the nut conveniently, meanwhile, the gap between the wrench and the lug plate 3 can be kept, and the locking efficiency of the cylindrical pin 5 is improved; meanwhile, the reinforcing ribs 7 can extend downwards to the bosses 6, and cannot interfere with the installation of the nut.

As shown in fig. 1-2, the lifting lug 4 is welded on the tool body 2, and the force balance cannot be guaranteed constantly in the hoisting process, so that the strength of connection between the lifting lug 4 and the tool body 2 needs to be enhanced, and the damage of the lifting lug 4 is avoided. Connecting ribs 8 are arranged between the tool body 2 and the lifting lugs 4, and the connecting ribs 8 are located on two end faces of the lifting lugs 4.

As shown in fig. 1-4. The top end of the reinforcing rib 7 is fixedly connected with one end of the connecting rib 8. The connecting rib 8 can provide certain restriction to the reinforcing rib 7 in the vertical direction, and the movable end of the ear plate 3 is prevented from being bent, so that the strength of the ear plate 3 is further improved.

Claims

1. The utility model provides a hydroelectric set top cap lifts by crane special frock which characterized in that: including frock body (2), the both sides of the bottom of frock body (2) all are provided with otic placode (3), the interval of otic placode (3) opposite face equals with the width of lifting by crane gusset (1), be provided with on otic placode (3) can with lift by crane the connecting hole of the coaxial intercommunication of preformed hole on gusset (1), and the size of connecting hole is the same with the size of preformed hole, the bottom of frock body (2) is provided with the inclined plane of the top surface laminating of gusset (1) with lifting by crane when the connecting hole is coaxial with the preformed hole, connecting hole and preformed hole are run through by cylindric lock (5), and cylindric lock (5) keep away from one of nut and serve the screw-thread fit and be connected with the nut, the external diameter of cylindric lock (5) is the same with the internal diameter of connecting hole, be provided with lug (4) that are used for connecting the shackle on frock body (2).

2. The special tool for hoisting the top cover of the hydroelectric generating set according to claim 1, wherein: and the outer side wall of the tool body (2) is provided with a reinforcing rib (7) connected with the ear plate (3).

3. The special tool for hoisting the top cover of the hydroelectric generating set according to claim 2, wherein: the outer side wall of the tool body (2) is provided with a boss (6) in a round table shape, the boss (6) is coaxial with the connecting hole, and one end of the reinforcing rib (7) is connected to the boss (6).

4. The special tool for hoisting the top cover of the hydroelectric generating set according to claim 2, wherein: connecting ribs (8) are arranged between the tool body (2) and the lifting lugs (4), and the connecting ribs (8) are located on two end faces of the lifting lugs (4).

5. The special tool for hoisting the top cover of the hydroelectric generating set according to claim 4, wherein: the top end of the reinforcing rib (7) is fixedly connected with one end of the connecting rib (8).