CN111056422A

CN111056422A - A spreader for installing a large flywheel and a method of using the same

Info

Publication number: CN111056422A
Application number: CN201911210532.7A
Authority: CN
Inventors: 李姚; 陈杰; 张明才; 谷生金
Original assignee: WUHU DONGGUANG DAHUA MACHINERY MANUFACTURING CO LTD
Current assignee: WUHU DONGGUANG DAHUA MACHINERY MANUFACTURING CO LTD
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-04-24
Anticipated expiration: 2039-12-02
Also published as: CN111056422B

Abstract

The invention discloses a sling for installing a large flywheel and a method for using the same, and relates to the field of hoisting. The main sling is fixedly connected to the center of the upper end of the cross hanger, and the suspender is fixedly connected to the center of the lower end of the cross hanger. The four corners of the hanger pass through and are slidably connected with the cross hanger, the inner clamp is rotatably connected to the lower end of the hanger, and the outer clamp is rotatably connected to the lower end of the auxiliary sling. The flywheel is not only safe and reliable, but also has various uses; the inner clamp can clamp the flywheel from the inner ring of the flywheel, without the need for manual installation of the spreader, and the four outer clamps are clamped in the four directions of the flywheel. Adjust the angle of the flywheel to assist installation.

Description

Lifting appliance for mounting large flywheel and using method thereof

Technical Field

The invention relates to the field of hoisting, in particular to a hoisting tool for installing a large flywheel and a using method thereof.

Background

The large flywheel has large mass, if the large flywheel is placed on the ground and is difficult to take up, a common lifting appliance is difficult to get down, the flywheel is generally required to be tilted a little manually, then the lifting appliance is installed in a manual assisting mode, and the lifting appliance similar to a large clamp can clamp the flywheel by itself, but the flywheel is easy to damage when the flywheel is clamped.

Moreover, the common lifting appliance only can play a role of a flywheel, and the flywheel transfer has no problem, but the lifting appliance plays no auxiliary role when the flywheel is installed, so that the scheduling of the flywheel cannot be adjusted, and the installation of the flywheel can be interfered because the lifting appliance is too large.

Disclosure of Invention

The invention aims to provide a lifting appliance for mounting a large flywheel and a using method thereof, wherein the large flywheel is clamped by arranging an inner clamp and an outer clamp together, so that the lifting appliance is safe and firm and is useful in various places; the inner clamp can clamp the flywheel from the inner ring of the flywheel without artificial auxiliary installation of a lifting appliance, the four outer clamps are clamped in four directions of the flywheel, and the angle of the flywheel can be adjusted through the four auxiliary lifting cables to realize auxiliary installation.

The lifting appliance comprises a sling structure, an inner clamp and an outer clamp, wherein the sling structure comprises a cross-shaped hanging bracket, a main sling, a lifting column and four auxiliary slings, the main sling is fixedly connected to the center of the upper end of the cross-shaped hanging bracket, the lifting column is fixedly connected to the center of the lower end of the cross-shaped hanging bracket, the four auxiliary slings penetrate through the four corners of the cross-shaped hanging bracket respectively and are in sliding connection with the cross-shaped hanging bracket, the inner clamp is rotatably connected to the lower end of the lifting column and used for clamping a wind wheel from an inner ring of a flywheel, and the outer clamp is rotatably connected to the lower end of the auxiliary sling and used for clamping the wind wheel from the edge of the flywheel.

Preferably, the inner clamp comprises a steel cylinder, a mouth supporting piece, a fixed cylinder, a telescopic motor and a jacking piece, wherein the fixed cylinder is fixedly connected to the front end of the steel cylinder, the mouth supporting piece is provided with a plurality of mouth supporting pieces which are arranged around the fixed cylinder at equal angles, the mouth supporting pieces are inserted into the fixed cylinder and are in sliding connection with the fixed cylinder, the telescopic motor is fixedly arranged in the steel cylinder, an output shaft of the telescopic motor penetrates through the steel cylinder and extends into the fixed cylinder to be connected with the jacking piece, and the jacking piece is in sliding connection with the fixed cylinder;

preferably, be equipped with on the fixed section of thick bamboo and prop a mouthful groove, prop a mouthful inslot and be equipped with the stopper, prop to be equipped with on the mouth piece with stopper matched with spacing groove, prop a mouthful piece and be located and prop a mouthful inslot and sliding connection with it, the stopper is located spacing inslot and sliding connection with it.

Preferably, a limiting slide rod is further arranged in the fixed cylinder, a slide rod groove corresponding to the limiting slide rod is formed in the jacking piece, and the limiting slide rod is located in the slide rod groove and is in sliding connection with the slide rod groove.

Preferably, the telescopic motor is fixedly connected with the steel cylinder through a motor base, the rear end of the steel cylinder is fixedly connected with a connecting piece matched with the hanging column, and the outer surface of the opening supporting piece is provided with a layer of rubber pad.

Preferably, outer anchor clamps include left clamping jaw, right clamping jaw, suspension clasp, articulated elements and screw rod, left side clamping jaw and right clamping jaw pass through the articulated elements handing-over on the suspension clasp, the suspension clasp rotates with vice hoist cable to be connected, the screw rod is respectively in left clamping jaw and right clamping jaw threaded connection.

Preferably, the screw thread turning directions of the left half section and the right half section of the screw rod are opposite, the left clamping jaw is in threaded connection with the left half section of the screw rod, and the right clamping jaw is in threaded connection with the right half section of the screw rod.

Preferably, the lower ends of the left clamping jaw and the right clamping jaw are provided with clamping blocks, the clamping blocks are provided with a plurality of anti-skidding bulges, and the left end of the screw rod is provided with a knob.

The method for using the large flywheel installation lifting appliance comprises the following steps:

firstly, the method comprises the following steps: clamping the flywheel from the inner ring, inserting the inner clamp into the inner ring of the flywheel above the flywheel, and then starting the telescopic motor, wherein the telescopic motor drives the opening expanding piece to expand outwards and finally props against the inner ring of the flywheel to clamp the flywheel;

II, secondly: clamping the flywheel from the edge, slightly lifting the flywheel through a main sling after clamping the flywheel through an inner clamp, and then clamping the flywheel through an outer clamp, wherein 4 outer clamps are clamped at the edge of the flywheel at equal angles;

thirdly, the method comprises the following steps: after the angle is adjusted, the inner clamp and the outer clamp the flywheel, the crane lifts the flywheel to move to an installation place, and then the angle of the flywheel is adjusted through lifting and falling of the four auxiliary slings, so that the flywheel is convenient to install.

The invention has the advantages that: the structure is simple, the use is flexible, and the large flywheel is clamped by the inner clamp and the outer clamp together, so that the flywheel is safe and firm and is useful; the inner clamp can clamp the flywheel from the inner ring of the flywheel without artificial auxiliary installation of a lifting appliance, the four outer clamps are clamped in four directions of the flywheel, and the angle of the flywheel can be adjusted through the four auxiliary lifting cables to realize auxiliary installation.

Drawings

FIG. 1 is a schematic view of the overall structure of the apparatus of the present invention;

FIG. 2 is a front view of the apparatus of the present invention;

FIG. 3 is a schematic view of the structure of the inner holder of the apparatus of the present invention;

FIG. 4 is a schematic structural view of an external jig in the apparatus of the present invention;

FIG. 5 is a schematic view of the internal structure of a steel cylinder in the apparatus of the present invention;

FIG. 6 is a schematic view of the construction of a mouth piece of the apparatus of the present invention;

FIG. 7 is a schematic structural view of a fixed cylinder in the device of the present invention;

FIG. 8 is a schematic view of the construction of the jacking members of the apparatus of the present invention;

FIG. 9 is a schematic view of the structure of the screw of the apparatus of the present invention;

FIG. 10 is a schematic view of the flywheel held by the inner clamp of the apparatus of the present invention;

the lifting device comprises a lifting rope structure 1, a lifting rope structure 10, a cross-shaped lifting frame 11, a main lifting rope 12, a lifting column 13, an auxiliary lifting rope 2, an inner clamp, 20, a steel cylinder 21, a mouth supporting piece 210, a limiting groove 22, a fixing cylinder 220, a limiting sliding rod 221, a mouth supporting groove 222, a limiting block 23, a telescopic motor 230, a motor base 24, a jacking piece 240, a sliding rod groove 25, a connecting piece 26, a rubber pad 3, an outer clamp 30, a left clamping jaw 31, a right clamping jaw 32, a lifting buckle 33, a hinge piece 34, a screw rod 340, a knob 35, a clamping block 350, an anti-skidding bulge 4 and a flywheel.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 10, the lifting appliance for installing the large flywheel and the using method thereof comprise a sling structure 1, an inner clamp 2 and an outer clamp 3, wherein the sling structure 1 comprises a cross-shaped hanger 10, a main sling 11, a lifting column 12 and an auxiliary sling 13, the main sling 11 is fixedly connected to the center of the upper end of the cross-shaped hanger 10, the lifting column 12 is fixedly connected to the center of the lower end of the cross-shaped hanger 10, the auxiliary sling 13 is provided with four slings 13, the four slings 13 respectively penetrate through four corners of the cross-shaped hanger 10 and are slidably connected with the cross-shaped hanger 10, the inner clamp 2 is rotatably connected to the lower end of the lifting column 12 and is used for clamping the wind wheel from an inner ring of the flywheel, and the outer clamp 3 is rotatably connected to the lower end of the auxiliary sling 13. Safe and reliable, and can directly hoist the flywheel from the ground.

The inner clamp 2 comprises a steel cylinder 20, a mouth supporting piece 21, a fixed cylinder 22, a telescopic motor 23 and a jacking piece 24, wherein the fixed cylinder 22 is fixedly connected to the front end of the steel cylinder 20, the mouth supporting piece 21 is provided with a plurality of mouth supporting pieces which are arranged around the fixed cylinder 22 at equal angles, the mouth supporting pieces 21 are inserted into the fixed cylinder 22 and are in sliding connection with the fixed cylinder 22, the telescopic motor 23 is fixedly arranged in the steel cylinder 20, an output shaft of the telescopic motor 23 penetrates through the steel cylinder 20 and extends into the fixed cylinder 22 to be connected with the jacking piece 24, and the jacking piece 24 is in sliding connection with the fixed cylinder 22; the motor is driven, thereby being safe and labor-saving.

Be equipped with on the fixed section of thick bamboo 22 and prop a mouthful groove 221, it is equipped with stopper 222 in the groove 221 to prop mouthful, prop and be equipped with on the mouth piece 21 and prop a mouthful spacing groove 210 with stopper 222 matched with, prop a mouthful piece 21 and be located and prop a mouthful groove 221 and sliding connection with it, stopper 222 is located and sliding connection with it in spacing groove 210.

A limiting slide rod 220 is further arranged in the fixed cylinder 22, a slide rod groove 240 corresponding to the limiting slide rod 220 is formed in the jacking piece 24, and the limiting slide rod 220 is located in the slide rod groove 240 and is in sliding connection with the slide rod groove 240.

The telescopic motor 23 is fixedly connected with the steel cylinder 20 through a motor base 230, the rear end of the steel cylinder 20 is fixedly connected with a connecting piece 25 matched with the hanging post 12, and the outer surface of the opening supporting piece 21 is provided with a layer of rubber pad 26.

Outer anchor clamps 3 include left clamping jaw 30, right clamping jaw 31, suspension clasp 32, articulated elements 33 and screw rod 34, left side clamping jaw 30 and right clamping jaw 31 pass through articulated elements 33 handing-over on suspension clasp 32, suspension clasp 32 rotates with vice hoist cable 13 to be connected, screw rod 34 is respectively in left clamping jaw 30 and right clamping jaw 31 threaded connection.

The screw thread turning directions of the left half section and the right half section of the screw rod 34 are opposite, the left clamping jaw 30 is in threaded connection with the left half section of the screw rod 34, and the right clamping jaw 31 is in threaded connection with the right half section of the screw rod 34. The opposite direction of rotation of the screw 34 is achieved so that the left jaw 30 and the right jaw 31 will only move inwardly at the same time or outwardly at the same time.

The lower ends of the left clamping jaw 30 and the right clamping jaw 31 are both provided with clamping blocks 35, the clamping blocks 35 are provided with a plurality of anti-skidding protrusions 350, and the left end of the screw rod 34 is provided with a knob 340. The hand can be conveniently twisted.

firstly, the method comprises the following steps: clamping the flywheel from the inner ring, inserting the inner clamp 2 into the inner ring of the flywheel above the flywheel, on which the whole lifting appliance falls, starting the telescopic motor 23, driving the opening supporting piece 21 to expand outwards by the telescopic motor 23, and finally propping against the inner ring of the flywheel to clamp the flywheel;

II, secondly: clamping the flywheel from the edge, slightly lifting the flywheel through a main sling 11 after clamping the flywheel through an inner clamp 2, then clamping the flywheel through an outer clamp 3, and clamping the 4 outer clamps 3 at the edge of the flywheel at equal angles;

thirdly, the method comprises the following steps: after the angle is adjusted, the flywheel is clamped by the inner clamp 2 and the outer clamp 3, the crane moves to an installation place while hanging the flywheel, and then the angle of the flywheel is adjusted by lifting and falling of the four auxiliary slings 13, so that the flywheel is convenient to install.

The specific implementation mode and principle are as follows:

when the flywheel 4 is installed, firstly, the inner clamp 2 is inserted into the inner ring of the flywheel 3 above the flywheel 4 where the whole lifting appliance falls, then the telescopic motor 23 is started, the telescopic motor 23 drives the jacking piece 24 to move forwards, the jacking piece 24 moves forwards to jack up the opening supporting piece 21, the opening supporting piece 21 is expanded outwards, and finally the inner ring of the flywheel is propped against to clamp the flywheel;

after the flywheel 4 is clamped by the inner clamp 2, the flywheel is slightly lifted by the main sling 11, then the flywheel 4 is clamped by the outer clamp 3, 4 outer clamps 3 are clamped at the edge of the flywheel 4 at equal angles, the left clamping jaw 30 and the right clamping jaw 31 are opened by rotating the screw 34 (the two ends of the screw 34 are opposite in rotating direction, so that the left clamping jaw 30 and the right clamping jaw 31 only move inwards at the same time or move outwards at the same time) and are placed at two sides of the flywheel 4, and then the left clamping jaw 30 and the right clamping jaw 31 are tightened by rotating the screw 34 to firmly clamp the flywheel 4;

after the inner clamp 2 and the outer clamp 3 clamp the flywheel 4, the crane hangs the flywheel 4 and moves to an installation place, then the crane controls the lifting and falling of the four auxiliary slings 13 to adjust the angle of the flywheel 4, so that the installation is convenient, during the installation, the flywheel 4 is moved to a corresponding position to be preliminarily fixed, then the inner clamp 2 is loosened firstly, the flywheel is sleeved on an installation shaft, then the flywheel is completely fixed, and finally the outer clamp 3 is loosened.

Based on the above, the flywheel clamping device is simple in structure and flexible to use, and the large flywheel is clamped by the inner clamp and the outer clamp together, so that the flywheel clamping device is safe and firm and is useful in all places; the inner clamp can clamp the flywheel from the inner ring of the flywheel without artificial auxiliary installation of a lifting appliance, the four outer clamps are clamped in four directions of the flywheel, and the angle of the flywheel can be adjusted through the four auxiliary lifting cables to realize auxiliary installation.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. A large flywheel installation sling, characterized in that it comprises a sling structure (1), an inner clamp (2) and an outer clamp (3), the sling structure (1) comprising a cross hanger (10) , the main sling (11), the suspender (12) and the auxiliary sling (13), the main sling (11) is fixedly connected to the center of the upper end of the cross hanger (10), the suspender (12) It is fixedly connected at the center of the lower end of the cross hanger (10), and four auxiliary slings (13) are provided. The frame (10) is slidably connected, the inner clamp (2) is rotatably connected to the lower end of the hanger (12) for clamping the wind wheel from the inner ring of the flywheel, and the outer clamp (3) is rotatably connected to the auxiliary sling The lower end of (13) is used to clamp the wind wheel from the edge of the flywheel.

2 . The hanger for installing a large flywheel according to claim 1 , wherein the inner clamp ( 2 ) comprises a steel cylinder ( 20 ), a mouthpiece ( 21 ), a fixing cylinder ( 22 ), a telescopic A motor (23) and a lifting piece (24), the fixing cylinder (22) is fixedly connected to the front end of the steel cylinder (20), and the mouth supporting piece (21) is provided with several and equiangularly arranged on the fixing cylinder (22) around, and the mouth piece (21) is inserted on the fixed cylinder (22) and is slidably connected with it, the telescopic motor (23) is fixedly installed in the steel cylinder (20), and the telescopic motor (23) The output shaft passes through the steel cylinder (20) and protrudes into the fixed cylinder (22) to be connected with the lifting piece (24), and the lifting piece (24) is slidably connected with the fixing cylinder (22).

3 . The hanger for installing a large flywheel according to claim 2 , wherein the fixing cylinder ( 22 ) is provided with a brace slot ( 221 ), and a limiter slot ( 221 ) is provided in the brace slot ( 221 ). 4 . A position block (222), the mouth support piece (21) is provided with a limit groove (210) matched with the limit block (222), and the mouth support piece (21) is located in the support mouth groove (221) and is slidably connected with it, and the limiting block (222) is located in the limiting groove (210) and is slidably connected with it.

4 . The hanger for installing a large flywheel according to claim 2 , characterized in that: the fixing cylinder ( 22 ) is further provided with a limit sliding rod ( 220 ), and the lifting member ( 24 ) is provided with a sling rod ( 220 ). There is a sliding rod groove (240) with the limiting sliding rod (220), and the limiting sliding rod (220) is located in the sliding rod groove (240) and is slidably connected with it.

5 . The large flywheel installation hanger according to claim 2 , wherein the telescopic motor ( 23 ) is fixedly connected to the steel cylinder ( 20 ) through a motor seat ( 230 ), and the steel cylinder ( 20 ) is fixedly connected to the steel cylinder ( 20 ). The rear end of the ) is fixedly connected with a connecting piece (25) matched with the hanger (12), and a layer of rubber pad (26) is provided on the outer surface of the mouth support piece (21).

6 . The large flywheel installation hanger according to claim 1 , wherein the outer clamp ( 3 ) comprises a left jaw ( 30 ), a right jaw ( 31 ), a hook ( 32 ), a hinge (33) and the screw (34), the left jaw (30) and the right jaw (31) are connected to the hanger (32) through the hinge (33), the hanger (32) and the auxiliary sling ( 13) Rotating connection, the screw rod (34) is screwed to the left clamping jaw (30) and the right clamping jaw (31) respectively.

7 . The hanger for installing a large flywheel according to claim 1 , characterized in that: the left half and right half of the screw rod ( 34 ) have opposite screw threads, and the left clamping jaw ( 30 ) is connected to the screw rod ( 30 ). 8 . The left half of (34) is threadedly connected, and the right jaw (31) is threadedly connected with the right half of the screw rod (34).

8 . The hanger for installing a large flywheel according to claim 1 , wherein the lower ends of the left clamping jaw (30) and the right clamping jaw (31) are provided with clamping blocks (35), and the The clamping block (35) is provided with a plurality of anti-skid protrusions (350), and the left end of the screw rod (34) is provided with a knob (340).

9. the using method of a kind of large-scale flywheel installation hanger described in claim 2 or 6 is characterized in that: comprise the steps:

1: Clamp the flywheel from the inner ring, first place the entire spreader above the flywheel, insert the inner clamp (2) into the inner ring of the flywheel, then start the telescopic motor (23), and the telescopic motor (23) drives the support The mouth piece (21) expands outwards, and finally resists the inner ring of the flywheel and clamps the flywheel;

Two: Clamp the flywheel from the edge, after clamping the flywheel with the inner clamp (2), lift the flywheel slightly through the main sling (11), and then use the outer clamp (3) to clamp the flywheel, 4 outer clamps (3) Isometrically clamped at the edge of the flywheel;

Three: Adjust the angle. After the inner clamp (2) and the outer clamp (3) are both clamped to the flywheel, the crane moves the flywheel to the installation site, and then adjusts the flywheel by lifting and falling of the four auxiliary slings (13). Angled for easy installation.