CN217458446U

CN217458446U - Anti-deformation lifting appliance for large thin-wall ring piece

Info

Publication number: CN217458446U
Application number: CN202221673464.5U
Authority: CN
Inventors: 李剋蒙; 唐晖; 刘浩
Original assignee: Shandong Rongfa Shuhai Intelligent Equipment Co ltd
Current assignee: Shandong Rongfa Shuhai Intelligent Equipment Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-09-20
Anticipated expiration: 2032-06-29

Abstract

The application discloses a shape hoist of preapring for an unfavorable turn of events for large-scale thin wall ring spare belongs to engineering machine tool's technical field, including central load frame, central load frame is cylindricly, is equipped with a plurality of supporting components on the lateral wall of central load frame, and supporting component's one end is articulated with central load frame, and supporting component is at vertical in-plane rotation, and supporting component keeps away from the one end of central load frame and articulates there is the layer board, and a plurality of layer boards are just formed circular form around central load frame jointly. The problem of deformation of the large thin-wall ring piece in the conventional hoisting process due to the fact that the large thin-wall ring piece is heavy in weight and small in wall thickness can be effectively solved, and particularly when the ring piece is in a high-temperature low-strength state after hot rolling forming or after heat treatment and heating and needs to be hoisted; meanwhile, the problem of deformation caused by water flow impact when the ring enters flowing circulating cooling water in a high-temperature state during heat treatment quenching of the large ring can be effectively avoided.

Description

Anti-deformation lifting appliance for large thin-wall ring piece

Technical Field

The application relates to the technical field of engineering machinery, in particular to an anti-deformation lifting appliance for large thin-wall rings.

Background

The diameter of the ring piece which can be rolled exceeds 15m and the height of the ring piece exceeds 3m, the ring piece can replace the large ring piece which is manufactured by the traditional plate rolling and plate rolling assembly welding, the ring piece manufacturing period can be greatly shortened, the reliability is improved, the metal ring piece produced by the large ring rolling machine can be used for a nuclear power sodium cold reactor high-temperature liquid sodium storage pool, a petrochemical large storage tank, an underwater pressure-resistant cabin shell wall and the like, but the semi-finished ring piece after rolling has lower self rigidity due to larger diameter and thinner relative wall thickness, so that irreversible deformation is easy to generate in the lifting and heat treatment transferring processes.

At present, the rigidity of the ring piece is improved by increasing the wall thickness of the ring piece, and finally, a method of reprocessing and removing the redundant wall thickness is adopted to obtain a large thin-wall ring piece without a welding seam, but the manufacturing cost is greatly increased, metal raw materials are wasted, and the processing time is increased; for metal with poor hardenability, the performance of the inner layer area is difficult to ensure due to the increase of the wall thickness, so that the problem of irreversible deformation is always easy to generate in the hoisting process.

SUMMERY OF THE UTILITY MODEL

The application provides a shape hoist of preapring for an unfavorable turn of events for large-scale thin wall ring spare to the not enough of prior art existence.

The technical scheme for solving the technical problems is as follows:

the utility model provides a shape hoist of preapring for an unfavorable turn of events for large-scale thin wall ring spare, includes central load frame, and central load frame is cylindricly, is equipped with a plurality of supporting components on the lateral wall of central load frame, and supporting component's one end is articulated with central load frame, and supporting component is at vertical in-plane rotation, and supporting component keeps away from the one end of central load frame and articulates there is the layer board, and a plurality of layer boards are around central load frame and form circular form jointly.

Furthermore, a main hook is arranged on the central bearing frame, and a hanging hole is formed in the main hook.

Furthermore, the supporting plate is provided with a hanging chain, one end of the hanging chain, far away from the supporting plate, is provided with an auxiliary hook, the hanging chains are connected with the auxiliary hook together, the auxiliary hook is arranged at the center of the hanging chains, and the auxiliary hook is provided with a hanging hole.

Furthermore, the outer side wall of the central bearing frame is hinged with a telescopic cylinder, an output shaft of the telescopic cylinder is connected with the supporting component, and the telescopic cylinder makes telescopic motion to drive the supporting component to rotate in a vertical plane.

Furthermore, the supporting component comprises an upper supporting arm and a lower supporting arm, the two ends of the upper supporting arm are respectively hinged with the central bearing frame and the supporting plate, the two ends of the lower supporting arm are respectively hinged with the central bearing frame and the supporting plate, and the upper supporting arm and the lower supporting arm rotate in a vertical plane.

Furthermore, the bottom of the supporting plate is fixedly provided with a supporting edge, and the supporting edge is arranged on one side of the supporting plate far away from the central force bearing frame.

Furthermore, one end of the supporting plate, which is far away from the central force bearing frame, is arc-surface-shaped.

In summary, compared with the prior art, the beneficial effects of the above technical scheme are:

(1) the technical scheme can effectively solve the problem of deformation of the large thin-wall ring piece in the lifting process in a conventional mode due to the fact that the large thin-wall ring piece is heavy in weight and small in wall thickness, and particularly when the ring piece is in a high-temperature low-strength state after hot rolling forming or after heat treatment and heating and needs to be lifted;

(2) meanwhile, the problem of deformation caused by water flow impact when the ring enters flowing circulating cooling water in a high-temperature state during heat treatment quenching of the large ring can be effectively avoided.

Drawings

Fig. 1 is a schematic overall structure diagram in the embodiment of the present application.

Description of reference numerals: 1. a central force bearing frame; 2. a support assembly; 21. an upper support arm; 22. a lower support arm; 3. a support plate; 31. supporting edges; 4. a chain is hung; 5. an auxiliary hook; 6. a connecting plate; 7. and a main hook.

Detailed Description

The principles and features of the present application are described below in conjunction with the appended fig. 1, which is provided by way of example to illustrate the present application and not to limit the scope of the present application.

The embodiment of the application discloses welding jig of variable angle.

Referring to fig. 1, a shape hoist of preapring for an unfavorable turn of events for large-scale thin wall ring spare, including central load frame 1, central load frame 1 is cylindricly, installs a plurality of supporting component 2 on the lateral wall of central load frame 1, and the even distribution of supporting component 2 is on the lateral wall of central load frame 1, and the one end and the central load frame 1 of supporting component 2 are articulated, and supporting component 2 is at vertical in-plane rotation. One end of the supporting component 2, which is far away from the central bearing frame 1, is hinged with a supporting plate 3, and the supporting plates 3 jointly surround the periphery of the central bearing frame 1 and form a circular shape. The operator rotates the supporting component 2 to move the supporting plate 3, so that the inner diameter of the circular shape formed by the supporting plates 3 is reduced or enlarged to adapt to the ring pieces with different sizes.

Referring to fig. 1, a connecting plate 6 is hinged on a central bearing frame 1, a plurality of connecting plates 6 are uniformly distributed at the edge position of the top end of the central bearing frame 1, one end, away from the central bearing frame 1, of each connecting plate 6 is hinged with a main hook 7, the connecting plates 6 are hinged with the main hook 7 together, and a hanging hole is formed in the main hook 7. The main hook of the overhead traveling crane can be conveniently inserted into the hanging hole of the main hook 7 by an operator to be hung up.

Referring to fig. 1, a lifting chain 4 is hinged on a supporting plate 3, one end, far away from the supporting plate 3, of the lifting chain 4 is hinged with an auxiliary hook 5, a plurality of lifting chains 4 are connected together with the auxiliary hook 5, the auxiliary hook 5 is arranged at the center of the plurality of lifting chains 4, and a lifting hole is formed in the auxiliary hook 5. The auxiliary hook of the overhead traveling crane is convenient for an operator to use, and the auxiliary hook is inserted into the hanging hole of the auxiliary hook 5 and is lifted for use. The relative distance between the supporting plates 3 is reduced and contracted by lifting the auxiliary hook or dropping the main hook, so that the supporting plates all fall into the ring piece; and then, the auxiliary hook falls down or the main hook is lifted, so that each jacking plate 3 expands outwards to brace the ring piece tightly, and the position fixation is realized. When the ring piece is put down, the reverse operation is adopted to realize the putting down of the ring piece.

Referring to fig. 1, or other modes are adopted, a telescopic cylinder is hinged on the outer side wall of the central bearing frame 1, an output shaft of the telescopic cylinder is connected with the supporting component 2, and the telescopic cylinder makes telescopic motion to drive the supporting component 2 to rotate in a vertical plane. The same purpose of opening and closing or contracting the supporting plate 3 is achieved through the expansion and contraction of the expansion cylinder, so that the functions of the auxiliary hook 5 and the hanging chain 4 are replaced.

Referring to fig. 1, the support assembly 2 includes an upper support arm 21 and a lower support arm 22, the upper support arm 21 and the lower support arm 22 are disposed in the same vertical plane, and the length of the upper support arm 21 is equal to the length of the lower support arm 22. The two ends of the upper supporting arm 21 are respectively hinged with the central bearing frame 1 and the supporting plate 3, the two ends of the lower supporting arm 22 are respectively hinged with the central bearing frame 1 and the supporting plate 3, and the upper supporting arm 21 and the lower supporting arm 22 rotate in a vertical plane. Through the synchronous rotation of last support arm 21 and lower support arm 22, realize the change of the contained angle between last support arm 21, lower support arm 22 and the horizontal plane, and then realize the internal shrink and external expansion of layer board 3. The operator can also change the upper support arm 21 and the lower support arm 22 with different lengths so as to adapt to the ring members with different inner diameters.

Referring to fig. 1, one end of the supporting plate 3, which is far away from the central bearing frame 1, is arc-surface-shaped, and the arc-surface shape of the supporting plate 3 is consistent with the radian of the inner wall of the ring piece, so that the stability of the shape of the ring piece is better protected.

Referring to fig. 1, a strip-shaped supporting edge 31 is fixedly arranged at the bottom of the supporting plate 3, the supporting edge 31 is arranged on one side of the supporting plate 3 far away from the central force bearing frame 1, the supporting edge is pressed down by the self weight of the ring to be supported on the outer side wall of the supporting plate 3 in the process of lifting the ring, and meanwhile, the position of the supporting edge 31 is limited, so that the ring is better supported on the outer wall of the supporting plate 3, and the ring is further prevented from deforming and sliding off in the lifting process.

The implementation principle of the deformation-preventing lifting appliance for the large thin-wall ring piece is as follows: the top supporting plate 3 connected with the supporting arm is horizontally displaced by utilizing the inclination change of the supporting arm, so that the expansion and the contraction are realized. When the crane is used by an operator, the main hook and the auxiliary hook of the crown block are respectively hung in the hanging hole of the main hook 7 and the hanging hole of the auxiliary hook 5; the relative distance between the supporting plates 3 is reduced by lifting the auxiliary hook or dropping the main hook, so that the supporting plates all fall into the ring piece; and then, each supporting plate 3 is expanded outwards by falling the auxiliary hook or lifting the main hook, so that the supporting plates 3 and the supporting edges 31 extend into the bottom end of the ring piece, the front wall of each supporting plate 3 is attached to the inner wall of the ring piece, the main hook is lifted at the moment to lift the ring piece together, the included angle between the upper supporting arm 21 and the lower supporting arm 22 is changed by pressing down the ring piece under the dead weight of the ring piece, and the supporting plates 3 are extended outwards, so that the supporting plates 3 can tightly push the inner wall of the ring piece, the whole hanger achieves certain supporting rigidity, and the ring piece is prevented from deforming during lifting. When the ring piece needs to be unloaded, a cushion block with a certain height is placed at the position of the bottom of the ring piece, the ring piece falls on the cushion block, the hanger continuously falls for a short distance, the auxiliary hook is lifted or the main hook is lowered, the supporting plate 3 is retracted inwards, the ring piece is separated from the supporting plate, and the hanger integrally rises and is separated from the ring piece.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a shape hoist of preapring for an unfavorable turn of events for large-scale thin wall ring spare which characterized in that: including central load frame (1), central load frame (1) is cylindricly, is equipped with a plurality of supporting component (2) on the lateral wall of central load frame (1), and the one end and central load frame (1) of supporting component (2) are articulated, and supporting component (2) are at vertical in-plane rotation, and the one end that central load frame (1) was kept away from in supporting component (2) articulates there is layer board (3), and a plurality of layer boards (3) are around central load frame (1) jointly and form circular form.

2. The deformation-preventing lifting appliance for the large-sized thin-walled ring piece according to claim 1, wherein: the central bearing frame (1) is provided with a main hook (7), and the main hook (7) is provided with a hanging hole.

3. The deformation-preventing lifting appliance for the large-sized thin-walled ring piece according to claim 1, wherein: the hanging chain type lifting device is characterized in that a hanging chain (4) is arranged on the supporting plate (3), one end, far away from the supporting plate (3), of the hanging chain (4) is provided with an auxiliary hook (5), the hanging chains (4) are connected with the auxiliary hook (5) together, the auxiliary hook (5) is arranged at the center of the hanging chains (4), and a hanging hole is formed in the auxiliary hook (5).

4. The deformation-preventing lifting appliance for the large-sized thin-walled ring piece according to claim 1, wherein: the outer side wall of the central bearing frame (1) is hinged with a telescopic cylinder, an output shaft of the telescopic cylinder is connected with the support component (2), and the telescopic cylinder makes telescopic motion to drive the support component (2) to rotate in a vertical plane.

5. The deformation-preventing lifting appliance for the large-sized thin-walled ring piece according to claim 1, wherein: the supporting component (2) comprises an upper supporting arm (21) and a lower supporting arm (22), the two ends of the upper supporting arm (21) are hinged with the central bearing frame (1) and the supporting plate (3) respectively, the two ends of the lower supporting arm (22) are hinged with the central bearing frame (1) and the supporting plate (3) respectively, and the upper supporting arm (21) and the lower supporting arm (22) rotate in the vertical plane.

6. The deformation-preventing lifting appliance for the large-sized thin-walled ring piece according to claim 1, wherein: the bottom of the supporting plate (3) is fixedly provided with a supporting edge (31), and the supporting edge (31) is arranged on one side of the supporting plate (3) far away from the central bearing frame (1).

7. The deformation-preventing lifting appliance for the large-sized thin-walled ring piece according to claim 1, wherein: one end of the supporting plate (3) far away from the central bearing frame (1) is arc-surface-shaped.