CN103183282A

CN103183282A - Hoisting tool used for large ring pieces

Info

Publication number: CN103183282A
Application number: CN2011104519305A
Authority: CN
Inventors: 何晓勇; 王朝辉; 高解农
Original assignee: SHANGHAI UNITED BEARING CO Ltd
Current assignee: SHANGHAI UNITED BEARING CO Ltd
Priority date: 2011-12-29
Filing date: 2011-12-29
Publication date: 2013-07-03
Anticipated expiration: 2031-12-29
Also published as: CN103183282B

Abstract

The invention discloses a hoisting tool used for large ring pieces, which comprises a suspension ring, a hoisting rod, a movable block, a connecting sleeve, three inner claws, three balancing rods, three movable suspension arms, and three iron chains. the suspension ring is connected with a lifting hook of a crane; the hoisting rod is disposed in a vertical state, and an upper and a lower limiting bulge loops are disposed at the lower part with intervals; the movable block is a dish-shaped hollow block with both an upper and a lower end face being conical surfaces, is slidingly sleeved on the hoisting rod and located between the upper and the lower limiting bulge loops; the connecting sleeve is slidingly sleeved at the upper middle part of the hoisting rod, and is fixedly connected with the suspension ring; the three inner claws are radially and uniformly hinged to the lower end face of the connecting sleeve, and catching heads of the three inner claws are located below the movable block; the three balancing rods are horizontally, radially and uniformly connected to the lower end of the hoisting rod; the three movable suspension arms are movably connected with a same part of each balancing rod, respectively; the three iron chains are radially, uniformly, and respectively connected with a part between the upper part of the connecting sleeve and the upper end of each of the movable suspension arms.

Description

A kind of lifting device for large ring

Technical field

The present invention relates to a kind of lifting device for large ring.

Background technology

Large ring, all compare tradition as the inner ring of large size bearing and the hoisting method of outer ring, owing to do not have available through hole and workpiece itself heavier on these workpiece, loading and unloading are inconvenient to typically use at least three steel ropes or suspender belt and are looked at 3 in ring and tie up in uniform way on ring very much, again three steel wires or suspender belt are grouped on the suspension ring and lift, therefore relatively require great effort, a people is difficult to finish this charge and discharge operations, besides big danger is arranged, the operator is required than higher, requirement possesses the lifting technique of specialty, and also the loss to suspender is also bigger, with respect to the manpower that uses the workshop, the material resources input ratio is bigger.

Summary of the invention

The objective of the invention is provides a kind of lifting device for large ring in order to overcome the deficiencies in the prior art, and it can lift by crane large ring class part simply, and is simple to operate, safe and reliable.

A kind of technical scheme that realizes above-mentioned purpose is: a kind of lifting device for large ring, comprise suspension ring, a vertical loading board, a movable block, a coupling bush, three interior claws, three trammel beams, three movable arms and three mild steel link chains, wherein:

Described suspension ring are used for being connected with the suspension hook of crane;

Described vertical loading board is vertical shape setting, and its bottom arranges upper and lower spacing bulge loop at interval an active distance;

Described movable block is the dish-shaped hollow block that a upper and lower end face is circular conical surface, and it slides on the described vertical loading board and between described upper and lower spacing bulge loop;

Described coupling bush slides over the middle and upper part of described vertical loading board and is fixedly connected on the described suspension ring;

Be hinged on the lower surface of coupling bush described three interior claw radial equipartitions, and make the eave tile of three interior claws be positioned at the below of described movable block;

Be connected the lower end of described vertical loading board the horizontal ground of described three trammel beams and radial equipartition;

Described three movable arms are movably connected in the same position of every described trammel beam respectively;

Described three mild steel link chains are connected respectively between the upper end of the top of described coupling bush and described movable arm radial equipartition.

The above-mentioned lifting device that is used for large ring, wherein, every described trammel beam is telescopic rod, the telescopic that the fixed link and that it is provided with a tapped bore by an outer end is enclosed within the outside of fixed link and axially offers a plurality of knock holees in uniform way constitutes, the inner of described fixed link is fixed on the lower end of described vertical loading board, and described fixed link is connected by a screw with telescopic; The lower end of every described movable arm has hook, and top is inclined upwardly with hook equidirectionally and axially offers a plurality of adjustment holes in uniform way, and is hinged by bearing pin on described movable arm and the described trammel beam.

The above-mentioned lifting device that is used for large ring, wherein, be provided with three otic placodes on the outer peripheral face of described coupling bush, the upper end of described three iron chains is connected to the top of otic placode radial equipartition, and described three interior claws are hinged on the lower end of described otic placode respectively by bearing pin.

The above-mentioned lifting device that is used for large ring, wherein, the outer peripheral face of described upper limit bulge loop is up-small and down-big circular conical surface, and the maximum outside diameter of this upper limit bulge loop equates that with the maximum outside diameter of described movable block the lower surface of this upper limit bulge loop also is provided with the conical grooves adaptive with the upper surface shape of described movable block.

The technical scheme of the lifting device for large ring of the present invention, can lift by crane large ring class part simply, and the range of sizes of suitable ring is big, and the ring that is lifted need not out hole for hoist, and is simple to operate, safe and reliable, only need an operator can finish the lifting of whole ring, thereby reduced manual operation, and alleviated danger coefficient, make things convenient for the use of plant operators, can use repeatedly.

Description of drawings

Fig. 1 is the structural representation of the lifting device for large ring of the present invention;

Fig. 2 is the birds-eye view of the lifting device for large ring of the present invention.

The specific embodiment

In order to understand technical scheme of the present invention better, also be described in detail by reference to the accompanying drawings below by specific embodiment:

See also Fig. 1 and Fig. 2, a kind of lifting device for large ring of the present invention comprises suspension ring 1, a vertical loading board 2, a movable block 3, a coupling bush 4, three interior claws 5, three trammel beams 6, three movable arms 7 and three mild steel link chains 8, wherein:

Suspension ring 1 are used for being connected with the suspension hook of lifting crane;

Vertical loading board 2 is vertical shape setting, and its compartment of terrain, bottom arranges a upper limit bulge loop 21 and lower limit bulge loop 22; Upper and lower

spacing bulge loop

21,22 spacing distance should be greater than the thickness of movable block 3; The outer peripheral face of upper limit bulge loop 21 is up-small and down-big circular conical surface, and the maximum outside diameter of this upper limit bulge loop 21 equates with the maximum outside diameter of movable block 3; The lower surface of this upper limit bulge loop 21 also is provided with the conical grooves 210 adaptive with the upper surface shape of movable block 3;

Movable block 3 is the dish-shaped hollow block that a upper and lower end face is circular conical surface, and it slides on the vertical loading board 2 and between upper and lower

spacing bulge loop

21,22;

Coupling bush 4 slides over the middle and upper part of vertical loading board 2 and is fixedly connected on the lower surface of suspension ring 1, and three otic placodes 40 are set on the outer peripheral face of this coupling bush 4 radial equipartition,

Three interior claws 5 are hinged on the lower end of the otic placode 40 of coupling bush 4 respectively by bearing pin, so that the eave tile of three interior claws is positioned at the below of movable block 3;

Be connected the lower end of vertical loading board 2 three trammel beams, 6 horizontal ground and radial equipartition; The telescopic 62 that the fixed link 61 and that every trammel beam 6 is provided with a tapped bore by an outer end is enclosed within the outside of fixed link 61 and axially offers a plurality of knock holees in uniform way constitutes; The inner of fixed link 61 is fixed on the lower end of vertical loading board 2, and fixed link 61 is connected by a screw with telescopic 62, and this screw is inserted in the knock hole of telescopic 62 and screws in the tapped bore of fixed link 61 again; Slip by telescopic 62 makes trammel beam 6 become telescopic rod, can adjust the length of trammel beam 6 according to the internal diameter of ring 9;

Three movable arms 7 are movably connected in the same position of every trammel beam 6 respectively; The lower end of every movable arm 7 has hook 71, and upper axial is offered a plurality of adjustment holes 72 in uniform way and is inclined upwardly equidirectionally and is the shape of cranking arm with hook 71; Every movable arm 7 is hinged by a bearing pin and trammel beam 6 respectively, and this bearing pin is inserted in the knock hole of the adjustment hole 72 of movable arm 7 and trammel beam 6, can regulate by a plurality of adjustment holes 72 of movable arm and link up with 71 length;

Three mild steel link chains 8 are connected respectively between the upper end of the top of otic placode 40 of coupling bush 4 and movable arm 7 radial equipartition.

A kind of lifting device for large ring of the present invention in use, if want lifting device to be hung in the inner ring of large ring 9, earlier that the hook 71 of movable arm 7 is outside, adjust the length of hook 71 according to the thickness of ring 9 by the adjustment hole 72 on the movable arm 7 again, the Outside Dimensions of the flexible hook 71 with three movable arms 7 of the telescopic 62 by trammel beam 6 is adjusted to the internal diameter of ring 9 adaptive then.After adjusting the relative dimensions of lifting device, move down lifting device, make the hook 71 of movable arm 7 be lower than the lower surface of ring 9, lower limit bulge loop 22 outer peripheral faces of the vertical loading board 2 that the interior claw 5 under this moment coupling bush 4 is in; After the lifting crane lifting, coupling bush 4 is along with suspension ring 1 rise, interior claw 5 also rises with coupling bush 4, the eave tile of claw 5 shrinks and colludes lower end at movable block 3 in making, and carrying movable block 3 and rising and enter in the conical grooves 210 of upper limit bulge loop 21, at this moment, (judging with mild steel link chain 8 slacknesses) also strained with the rising of coupling bush 4 in the upper end of mild steel link chain 8, inwardly swing the upper end of pulling activity arm 7, and outwards swing and be hooked in the lower surface of ring 9 of the hook 71 that makes movable arm 7, finish the lifting with ring 9.Interior claw 5 colludes in the lower end of movable block 3 and links up with 61 disengagement rings 9 for preventing that coupling bush 4 from gliding and making.Arrive assigned address and transfer ring 9, coupling bush 4 is glided just in time drop on the upper surface of upper limit bulge loop 21, mild steel link chain 8 loosens, the hook 71 of movable arm 7 breaks away from ring 9 (judging with mild steel link chain 8 slacknesses), the eave tile of claw 5 is positioned at the outer peripheral face of lower limit bulge loop 22 and throws off with movable block 3 in making simultaneously, movable block 3 freely drops on the upper surface of lower limit bulge loop 22, finishes ring 9 liftings to the task of another station.

If want lifting device to be hung in the outer ring of large ring 9, first hook 71 with movable arm 7 repeats above-mentioned method again and finishes lifting to inwardly.Finish ring 9 liftings to the task of another station, only need 1 lifting workman, general workman also can accomplish a task all by oneself after being familiar with.

Those of ordinary skill in the art will be appreciated that, above embodiment illustrates the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of the above embodiment.

Claims

1. a lifting device that is used for large ring is characterized in that described lifting device comprises suspension ring, a vertical loading board, a movable block, a coupling bush, three interior claws, three trammel beams, three movable arms and three mild steel link chains,

2. the lifting device for large ring according to claim 1 is characterized in that,

Every described trammel beam is telescopic rod, the telescopic that the fixed link and that it is provided with a tapped bore by an outer end is enclosed within the outside of fixed link and axially offers a plurality of knock holees in uniform way constitutes, the inner of described fixed link is fixed on the lower end of described vertical loading board, and described fixed link is connected by a screw with telescopic;

The lower end of every described movable arm has hook, and top is inclined upwardly with hook equidirectionally and axially offers a plurality of adjustment holes in uniform way, and is hinged by bearing pin on described movable arm and the described trammel beam.

3. the lifting device for large ring according to claim 1, it is characterized in that, be provided with three otic placodes on the outer peripheral face of described coupling bush radial equipartition, the upper end of described three iron chains is connected to the top of otic placode, and described three interior claws are hinged on the lower end of described otic placode respectively by bearing pin.

4. the lifting device for large ring according to claim 1, it is characterized in that, the outer peripheral face of described upper limit bulge loop is up-small and down-big circular conical surface, and the maximum outside diameter of this upper limit bulge loop equates that with the maximum outside diameter of described movable block the lower surface of this upper limit bulge loop also is provided with the conical grooves adaptive with the upper surface shape of described movable block.