CN104743444A - Laterally turning method of large panel framework type workpiece - Google Patents
Laterally turning method of large panel framework type workpiece Download PDFInfo
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- CN104743444A CN104743444A CN201510104790.2A CN201510104790A CN104743444A CN 104743444 A CN104743444 A CN 104743444A CN 201510104790 A CN201510104790 A CN 201510104790A CN 104743444 A CN104743444 A CN 104743444A
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- workpiece
- steel rope
- hoisting
- steel
- rope
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
Abstract
The invention relates to a laterally turning method of a large panel framework type workpiece. The laterally turning method comprises the following steps: firstly, putting the workpiece horizontally, and hoisting by adopting a crane, wherein a forged steel bilateral hooked head is adopted for hoisting; secondly, arranging two hoisting points along the length direction; thirdly, hoisting by four equal-length steel wire ropes; fourthly, binding the workpiece horizontally at the hoisting point I and the hoisting point II respectively by adopting the same mode; fifthly, adjusting the steel wire ropes so as to enable the reservation length of the head parts to be equal to that of the tail parts; sixthly, hanging the steel wire ropes to the bilateral hook head respectively; and seventhly, hoisting the workpiece by the crane slowly, wherein one side of the workpiece is always kept to be in contact with the ground in the hoisting process until the workpiece turns over by 90 degrees. Compared with the prior art, the laterally turning method has the beneficial effects that the lateral turning operation of the large panel framework type workpiece can be completed by only one crane and the steel wire ropes, so that the time and cost waste for designing and manufacturing a special lifting appliance is prevented; the rotation operation and the turning operation of the laterally erected workpiece also can realized; the laterally turning method is simple, feasible, safe and reliable.
Description
Technical field
The present invention relates to large-scale workpiece hoisting technology field, particularly relate to a kind of rollover method of large flat frame-type workpiece.
Background technology
In the process that the workpiece of large flat tower structure is processed as rolling-mill housing (also claiming memorial archway), often need operations such as workpiece being turned on one's side, edge-on.For the upset of this type of workpiece, be typically employed in workpiece both sides and utilize several groups of coasters or major-minor hook or two hoisting cranes to complete upset operation aloft.As the Chinese patent that application number is 201210208261.3 (applying date is on June 19th, 2012), disclose " during upset large-scale workpiece the bracing or strutting arrangement that uses and lift the method for one end of large-scale workpiece ", this method be generally applied in workpiece binding convenient or workpiece has hanger when.
When workpiece shapes is complicated and when not having ready-made hanger to utilize, can the lifting device of design specialized, by the structure of rigidity, workpiece and special tool are fixed, then utilize the special instrument of crane hanging component to realize the upset of workpiece, pertinent literature is as " super-huge 5000mm level rolling-mill housing (memorial archway) hoisting research " (national engineering construction industry main equipment lifting market investigation in 2004 and technical conferences collection of thesis); Also can adopt the special purpose device such as custom-designed slewing arrangement or slippage turning device to realize the upset of workpiece, pertinent literature is as " research of large-sized rolling mills frame spin balancing method hoisted in position complex art " (" Xi'an University of Architecture and Technology " 2009 weeks diligent Master's thesis).
But not only expend time in because manufacture and design hoisting tool special, also can increase cost, especially for non-standard equipment, special hanger is equivalent to single use, causes larger waste.Therefore job shop adopts some steel ropes to overturn or edge-on operation workpiece in the mode of both sides binding respectively usually at present, the shortcoming of this mode of operation is: when workpiece becomes edge-on state from horizontal positioned state, gravity can be transferred to opposite side steel rope from side steel rope suddenly, produce huge temporary impact load, easy generation rope-broken accident, and make workpiece that swinging by a relatively large margin occur due to the force of inertia of upset, also can be formed the safety of periphery operating personnel and threaten.
Summary of the invention
The invention provides the method for a kind of large flat frame-type workpiece rollover, only adopt a hoisting crane and steel rope just can complete the rollover operation of large flat frame-type workpiece, avoid the time and cost waste that design and produce special hanger, the rotary operation of edge-on rear workpiece and the upset operation of workpiece can also be realized, simple, safe and reliable.
In order to achieve the above object, the present invention realizes by the following technical solutions:
A rollover method for large flat frame-type workpiece, comprises the steps:
1) placed by workpiece level, bottom back-up block pad makes workpiece level well, adopts a crane hanging component, and gib head adopts forged steel bilateral gib head;
2) arrange two place's suspension centres along its length, suspension centre is arranged in workpiece center of gravity bilateral symmetry, and its spacing is 2/7 ~ 1/3 of workpiece overall length;
3) use the steel rope lifting that four isometric, total load is that the weight of workpiece is multiplied by safety factor, and the load value of every root steel rope is pressed 1/3 ~ 1/4 of total load and calculated, and determines the diameter of steel rope accordingly; The length of steel rope is 3 ~ 4 times of the width of the workpiece, and rope sling is all established in steel rope two ends;
4) adopt same way laterally to bundle workpiece respectively at suspension centre one place and suspension centre two place, if the steel rope at suspension centre one place is 1# and 3# steel rope, the corresponding steel rope in suspension centre two place is 2# and 4# steel rope; Wherein 1#, 3# steel rope from side through after workpiece bottom from opposite side around above workpiece, afterbody is oblique from hollow part to be converged through wire rope handling side workpiece bottom and head of steel wire rope; 2#, 4# steel rope from process above the workpiece of same wire rope handling side, around after opposite side workpiece bottom, afterbody from hollow part oblique through after above the workpiece of wire rope handling side and head of steel wire rope converges;
5) adjust steel rope, make head length in reserve equal with afterbody residue length, workpiece turning and the good corner protector of steel rope contact position pad;
6) be suspended to inside bilateral gib head respectively by 1#, 3# steel rope, 2#, 4# steel rope correspondence is suspended to outside bilateral gib head; The opposite side ground of workpiece lifting is well placed protective device;
7) hoisting crane slowly lifts by crane workpiece, remains workpiece side and earth surface in lifting process, until workpiece turning 90 degree, with preprepared suspension device workpiece set level pad steady after, take off steel rope, workpiece side climbs over journey and terminates.
Compared with prior art, the invention has the beneficial effects as follows:
Only adopt a hoisting crane and steel rope just can complete the rollover operation of large flat frame-type workpiece, avoid the time and cost waste that design and produce special hanger, the rotary operation of edge-on rear workpiece and the upset operation of workpiece can also be realized, simple, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the front view of workpiece of the present invention.
Fig. 2 is the lateral plan of workpiece of the present invention.(horizontal positioned is also leveled up)
Fig. 3 a is work piece hoisting schematic diagram one of the present invention.(only display 1# and 3# steel rope)
Fig. 3 b is the A-A cutaway view in Fig. 3 a.
Fig. 3 c is the B-B cutaway view in Fig. 3 a.
Fig. 4 a is work piece hoisting schematic diagram two of the present invention.(only display 2# and 4# steel rope)
Fig. 4 b is the A-A cutaway view in Fig. 4 a.
Fig. 4 c is the B-B cutaway view in Fig. 4 a.
Fig. 5 is the roping arrangement schematic diagram of steel rope of the present invention on suspension hook.
Fig. 6 is lifting view one of the present invention.(workpiece side climbs in journey)
Fig. 7 is of the present invention lifting view two.(workpiece has been turned on one's side)
In figure: 1. workpiece 2. center of gravity 3. back-up block 4.1# steel rope 5.3# steel rope 6.2# steel rope 7.4# steel rope 8. bilateral gib head
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described further:
A rollover method for large flat frame-type workpiece, comprises the steps:
1) by workpiece 1 horizontal positioned, bottom back-up block 3 pads and makes workpiece 1 level, adopts a crane hanging component, and gib head adopts forged steel bilateral gib head 8;
2) arrange two place's suspension centres along its length, suspension centre is arranged in workpiece center of gravity 2 bilateral symmetry, and its spacing is 2/7 ~ 1/3 of workpiece 1 overall length;
3) use steel rope 4,5,6,7 lifting that four isometric, total load is that the weight of workpiece 1 is multiplied by safety factor, and the load value of every root steel rope is pressed 1/3 ~ 1/4 of total load and calculated, and determines the diameter of steel rope accordingly; The length of steel rope is 3 ~ 4 times of the width of the workpiece, and rope sling is all established in steel rope two ends;
4) adopt same way laterally binding workpiece 1 respectively at suspension centre one place and suspension centre two place, if the steel rope at suspension centre one place is 1# and 3# steel rope 4,5, the corresponding steel rope in suspension centre two place is 2# and 4# steel rope 6,7; Wherein 1#, 3# steel rope 4,5 from side through behind workpiece 1 bottom surface from opposite side around above workpiece 1, afterbody is oblique from hollow part to be converged through workpiece 1 bottom surface, wire rope handling side and head of steel wire rope; (as shown in figs 3 a-3 c) 2#, 4# steel rope 6,7 is from process above same wire rope handling side workpiece 1, around behind opposite side workpiece 1 bottom surface, afterbody from hollow part oblique through wire rope handling side workpiece 1 above afterwards and head of steel wire rope converges; (as depicted in figure 4 a-4 c)
5) adjust steel rope, make head length in reserve equal with afterbody residue length, workpiece 1 turning and the good corner protector of steel rope contact position pad;
6) be suspended to inside bilateral gib head 8 respectively by 1#, 3# steel rope 4,5,2#, 4# steel rope 6,7 correspondence is suspended to outside bilateral gib head 8; (as shown in Figure 5) on the opposite side ground that workpiece 1 lifts by crane, protective device is well placed;
7) hoisting crane slowly lifts by crane workpiece, remains workpiece 1 side and earth surface in lifting process, turn 90 degrees until workpiece 1 turns over, with preprepared suspension device workpiece 1 set level pad steady after, take off steel rope, workpiece 1 process of turning on one's side terminates.(as Figure 6-Figure 7)
As Figure 1-Figure 2, it is the structural representation of workpiece 1 of the present invention, as can be seen from Figure 1, plate frame formula workpiece of the present invention is rectangular hollow structure, as can be seen from Figure 2, its thickness is relatively little, due to shape matching rule, be easy to according to conventional methods determine its center-of-gravity position, computation process can adopt simple algorithm.
The present invention adopts a hoisting crane can realize lifting, because the length of workpiece 1 is longer, therefore reasonably will select the position of suspension centre.The angle of steel rope and suspension hook should be prevented excessive, make two place's suspension centres be evenly distributed in suitable position, workpiece center of gravity 2 both sides again, prevent steel rope from the process of lifting, the slip of side direction occurring and departing from preposition.
Because workpiece 1 weight is comparatively large, job shop hoisting crane appraise and decide the deadweight that load is likely less than workpiece, when workpiece deadweight be no more than hoisting crane appraise and decide load 1.2 times, still can realize lifting.In application claims hoisting process workpiece 1 side all the time with earth surface, namely with ground as a fulcrum, required hoisting force can be alleviated in lifting process.
As shown in Figure 6,1# and 3# steel rope 4 when lifting process starts, 5 are stressedly tightened, 2# and 4# steel rope 6,7 is in relaxation state; After workpiece 1 flips an angle, 2# and 4# steel rope 4,5 is tightened stressed gradually, makes workpiece 1 realize steady rollover, can prevent workpiece 1 from continuing to rotate to opposite side; As shown in Figure 7, when workpiece 1 is turned to 90o, 4 steel ropes are all tightened, and now workpiece 1 side all lands, and turns on one's side successfully.
The backing plate that protective device is employing rubber, wood is made, prevent workpiece 1 from meeting accident when turning on one's side and be damaged, suspension device can adopt iron and steel or legs.
Claims (1)
1. a rollover method for large flat frame-type workpiece, is characterized in that, comprise the steps:
1) placed by workpiece level, bottom back-up block pad makes workpiece level well, adopts a crane hanging component, and gib head adopts forged steel bilateral gib head;
2) arrange two place's suspension centres along its length, suspension centre is arranged in workpiece center of gravity bilateral symmetry, and its spacing is 2/7 ~ 1/3 of workpiece overall length;
3) use the steel rope lifting that four isometric, total load is that the weight of workpiece is multiplied by safety factor, and the load value of every root steel rope is pressed 1/3 ~ 1/4 of total load and calculated, and determines the diameter of steel rope accordingly; The length of steel rope is 3 ~ 4 times of the width of the workpiece, and rope sling is all established in steel rope two ends;
4) adopt same way laterally to bundle workpiece respectively at suspension centre one place and suspension centre two place, if the steel rope at suspension centre one place is 1# and 3# steel rope, the corresponding steel rope in suspension centre two place is 2# and 4# steel rope; Wherein 1#, 3# steel rope from side through after workpiece bottom from opposite side around above workpiece, afterbody is oblique from hollow part to be converged through wire rope handling side workpiece bottom and head of steel wire rope; 2#, 4# steel rope from process above the workpiece of same wire rope handling side, around after opposite side workpiece bottom, afterbody from hollow part oblique through after above the workpiece of wire rope handling side and head of steel wire rope converges;
5) adjust steel rope, make head length in reserve equal with afterbody residue length, workpiece turning and the good corner protector of steel rope contact position pad;
6) be suspended to inside bilateral gib head respectively by 1#, 3# steel rope, 2#, 4# steel rope correspondence is suspended to outside bilateral gib head; The opposite side ground of workpiece lifting is well placed protective device;
7) hoisting crane slowly lifts by crane workpiece, remains workpiece side and earth surface in lifting process, until workpiece turning 90 degree, with preprepared suspension device workpiece set level pad steady after, take off steel rope, workpiece side climbs over journey and terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510104790.2A CN104743444B (en) | 2015-03-10 | 2015-03-10 | Laterally turning method of large panel framework type workpiece |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510104790.2A CN104743444B (en) | 2015-03-10 | 2015-03-10 | Laterally turning method of large panel framework type workpiece |
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| CN104743444A true CN104743444A (en) | 2015-07-01 |
| CN104743444B CN104743444B (en) | 2017-01-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265135A (en) * | 2017-02-25 | 2017-10-20 | 武汉亿维登科技发展有限公司 | A kind of packing method of container transport semi-trailer whole |
| CN107416545A (en) * | 2017-07-07 | 2017-12-01 | 武汉施密茨挂车有限公司 | A kind of packing method of Container Transport semi-mounted vehicle |
| CN109626213A (en) * | 2019-01-25 | 2019-04-16 | 中铁四局集团第三建设有限公司 | A kind of ground-connecting-wall overlength steel reinforcement cage once lifts the construction method for quickly entering slot |
| CN110523906A (en) * | 2019-10-08 | 2019-12-03 | 上海电气上重铸锻有限公司 | A kind of easy turn-over method of heavy cylindrical forging |
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| JP2006144234A (en) * | 2004-11-16 | 2006-06-08 | Misawa Homes Co Ltd | Panel suspending method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107265135A (en) * | 2017-02-25 | 2017-10-20 | 武汉亿维登科技发展有限公司 | A kind of packing method of container transport semi-trailer whole |
| CN107416545A (en) * | 2017-07-07 | 2017-12-01 | 武汉施密茨挂车有限公司 | A kind of packing method of Container Transport semi-mounted vehicle |
| CN109626213A (en) * | 2019-01-25 | 2019-04-16 | 中铁四局集团第三建设有限公司 | A kind of ground-connecting-wall overlength steel reinforcement cage once lifts the construction method for quickly entering slot |
| CN109626213B (en) * | 2019-01-25 | 2021-01-15 | 中铁四局集团第三建设有限公司 | Construction method for quickly entering underground diaphragm wall super-long reinforcement cage into groove through one-time hoisting |
| CN110523906A (en) * | 2019-10-08 | 2019-12-03 | 上海电气上重铸锻有限公司 | A kind of easy turn-over method of heavy cylindrical forging |
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| CN104743444B (en) | 2017-01-18 |
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