CN104803285A - Method for replacing movable pulley block in bridge crane - Google Patents
Method for replacing movable pulley block in bridge crane Download PDFInfo
- Publication number
- CN104803285A CN104803285A CN201510141937.5A CN201510141937A CN104803285A CN 104803285 A CN104803285 A CN 104803285A CN 201510141937 A CN201510141937 A CN 201510141937A CN 104803285 A CN104803285 A CN 104803285A
- Authority
- CN
- China
- Prior art keywords
- reel
- running block
- steel rope
- fixed pulley
- rope
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 67
- 239000010959 steel Substances 0.000 claims abstract description 67
- 239000004677 Nylon Substances 0.000 claims abstract description 42
- 229920001778 nylon Polymers 0.000 claims abstract description 42
- 238000004804 winding Methods 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 11
- 238000007665 sagging Methods 0.000 claims description 9
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
Abstract
The invention provides a method for replacing a movable pulley block in a bridge crane. According to the method, an original steel wire rope is separated from an original movable pulley block and is wound on another movable pulley block for replacement by connecting and adjusting a nylon rope between each fixed pulley and the corresponding movable pulley, so that the replacement operation of the movable pulley block in the bridge crane is completed, and by comparison of an existing movable pulley block replacement method of the bridge crane, the replacement operation time is shortened, the operation strength is greatly reduced, the workload of workers is reduced, and the operation efficiency is improved.
Description
Technical field
The invention belongs to overhead traveling crane machine equipment field engineering field, be specifically related to a kind of method changed for running block in crane in bridge type.
Background technology
The using state of crane in bridge type running block of the prior art as shown in Figure 1, first, its first fag end 201 is fixed on reel 1 by pressing plate (not shown) by steel rope 2, a part for this steel rope 2 is wrapped on reel 1, then the second fag end 202 is passed successively the first movable pulley 401 on old running block 4, the first fixed pulley 301 in fixed pulley group 3, the second movable pulley 402 on old running block 4, the second fixed pulley 302 in fixed pulley group 3, the 3rd movable pulley 403 on old running block 4, the 3rd fixed pulley 303 in fixed pulley group 3 and the 4th movable pulley 404 on old running block 4, second fag end 202 of this root steel rope 2 is fixed on reel 1 by another pressing plate.
At present, the step that the replacing options of existing running block mainly comprises is:
First, old running block is fallen to operating area, and place new running block in operating area simultaneously; Then, carry out the rope threading operations of steel rope, all peel off by the steel rope 2 that reel 1 is wound around, and be separated from fixed pulley group 3 and old running block 4, with steel rope successively through fixed pulley group 3 and new movable pulley, two fag ends of new steel rope are fixed on reel 1 by the pressing plate of described fag end side;
The method of above-mentioned wire rope handling needs manually to carry out rope threading operations successively, and namely artificial haulage cable is successively by fixed pulley group and running block, thus causes working strength large, and replacing construction is long, reduces operating efficiency.
Summary of the invention
The object of the invention is to, the working strength that the method changed for solving existing crane in bridge type running block causes is large, replacing construction is long, and the technical matters that operating efficiency is low; A kind of method changed for running block in crane in bridge type is provided, use the method can realize when not more change steel rope complete the replacing of running block, and it is short to change production time, greatly reduces operation intensity, decrease the work capacity of workman, improve operating efficiency.
For achieving the above object, the invention provides a kind of method changed for running block in crane in bridge type, said method comprising the steps of:
Step 1) remove limit switch on reel, by spool turns, the old running block that steel rope is wound around is transferred to operating area;
Step 2) fag end of the one section of steel rope be wound around between old running block one end and reel is pulled out, make this fag end freely sagging, the one section of steel rope be wound around between the old running block other end and reel is peeled off from reel;
Step 3) by placed side by side in the side of old running block for the new running block replaced, one end of steel rope is made to continue to be wound around on reel by rotating drum, make freely sagging fag end move down, and the other end of haulage cable move to reel along the winding route between fixed pulley group and running block simultaneously;
Step 4) after steel rope departs from a fixed pulley in fixed pulley group and a movable pulley on old running block, a nylon rope is wound around in the same position of the new running block of this fixed pulley and replacement, described nylon rope is identical with the winding route of steel rope, and the end of this nylon rope along moving direction is docked with fag end freely sagging on steel rope, this nylon rope is fixed on reel along the front end of moving direction;
Step 5) continue rotating in same direction reel, traction nylon rope moves along being wound around route to reel, after steel rope departs from another fixed pulley in fixed pulley group and another movable pulley on old running block, perform step 4), until nylon rope is wound to after on last fixed pulley in fixed pulley group and last movable pulley on new running block perform step 6);
Step 6) continue rotating in same direction reel, the wirerope-winding of traction and nylon rope end on to reel after, nylon rope is peeled off from steel rope;
Step 7) two ends of steel rope are individually fixed in the both sides of reel, and limit switch is reinstalled on reel.
As the further improvement of technique scheme, staggered being wound between fixed pulley and movable pulley of described steel rope.
As the further improvement of technique scheme, the two ends of described steel rope are fixed on reel by pressing plate.
A kind of method advantage for running block replacing in crane in bridge type of the present invention is:
Method of the present invention by utilize a nylon rope each fixed pulley be connected between movable pulley with adjustment, former steel rope is made to depart from old running block, and be wound on the new running block of replacement, thus complete the replacement operation of running block in crane in bridge type, compared with the method changed with existing crane in bridge type running block, change production time short, greatly reduce operation intensity, decrease the work capacity of workman, improve operating efficiency.
Accompanying drawing explanation
Fig. 1 is a kind of annexation figure of fixed pulley group, running block and steel rope in existing crane in bridge type.
Fig. 2 utilizes method of the present invention to carry out replacing schematic diagram to the running block shown in Fig. 1.
Reference numeral
1, reel 2, steel rope
3, fixed pulley group 4, old running block
5, new running block 201, steel rope first fag end
202, steel rope second fag end 301, first fixed pulley
302, the second fixed pulley 303, the 3rd fixed pulley
401, the first movable pulley 402, second movable pulley
403, the 3rd movable pulley 404, the 4th movable pulley
6, nylon rope
Detailed description of the invention
Below in conjunction with drawings and Examples, a kind of method for running block replacing in crane in bridge type of the present invention is described in detail.
A kind of method changed for running block in crane in bridge type of the present invention, comprising:
Step 1) remove limit switch on reel, by spool turns, the old running block that steel rope is wound around is transferred to operating area;
Step 2) fag end of the one section of steel rope be wound around between old running block one end and reel is pulled out, make this fag end freely sagging, the one section of steel rope be wound around between the old running block other end and reel is peeled off from reel;
Step 3) by placed side by side in the side of old running block for the new running block replaced, one end of steel rope is made to continue to be wound around on reel by rotating drum, make freely sagging fag end move down, and the other end of haulage cable move to reel along the winding route between fixed pulley group and running block simultaneously;
Step 4) after steel rope departs from a fixed pulley in fixed pulley group and a movable pulley on old running block, a nylon rope is wound around in the same position of the new running block of this fixed pulley and replacement, described nylon rope is identical with the winding route of steel rope, and the end of this nylon rope along moving direction is docked with fag end freely sagging on steel rope, this nylon rope is fixed on reel along the front end of moving direction;
Step 5) continue rotating in same direction reel, traction nylon rope moves along being wound around route to reel, after steel rope departs from another fixed pulley in fixed pulley group and another movable pulley on old running block, perform step 4), until nylon rope is wound to after on last fixed pulley in fixed pulley group and last movable pulley on new running block perform step 6);
Step 6) continue rotating in same direction reel, the wirerope-winding of traction and nylon rope end on to reel after, nylon rope is peeled off from steel rope;
Step 7) two ends of steel rope are individually fixed in the both sides of reel, and limit switch is reinstalled on reel.
Embodiment one
As shown in Figure 2, in the present embodiment, utilize the above-mentioned method changed for running block in crane in bridge type, replacing carried out to the running block with four movable pulleys and comprises the following steps:
Step 101) remove limit switch (not shown) on reel 1, the old running block 4 that steel rope is wound around is transferred to operating area, and by placed side by side before and after old running block 4 and the new running block 5 replaced;
Step 102) steel rope 2 that reel 1 is wound around all is put down, until two fag end parts that steel rope is pushed down by pressing plate (not shown) are stayed on reel 1, the pressing plate of one end on reel 1 is removed, and steel rope first fag end 201 exposed is positioned on ground after reel 1 is peeled off;
Step 103) rotate forward reel 1, the other end lay winding wire ropes 2 of reel 1 is made to continue to be wound around on reel 1, and haulage cable first fag end 201 moves along the winding route between fixed pulley group 3 and old running block 4 to reel 1, until described steel rope first fag end 201 departs from the first movable pulley 401 on old running block 4, now remove the pressing plate of the other end on reel 1, and steel rope second fag end 202 exposed is pulled out from reel 1, keep the free hang of this fag end
Step 104) then continue to rotate forward reel 1, make steel rope second fag end 202 slowly descending, make steel rope first fag end 201 continue to move to reel 1 along winding route simultaneously, until after this steel rope first fag end 201 is separated from the first fixed pulley 301 in fixed pulley group 3, nylon rope 6 is positioned on the first fixed pulley 301, and this nylon rope 6 is pressed wirerope-winding first fixed pulley 301, the order of the first movable pulley 401 and the second movable pulley 402, Stagger-wrap at the first fixed pulley 301 with on two movable pulleys corresponding to the new running block 5 replaced, afterwards this nylon rope is connected and fixed along the end of moving direction and steel rope second fag end 202, nylon rope is fixed on the position of steel rope first fag end 201 when unstripped reel 1 along the front end of moving direction,
Step 105) continue to rotate forward reel 1, haulage cable second fag end 202 passes the first movable pulley 401 on new running block 5 successively with nylon rope 6, the first fixed pulley 301 in fixed pulley group 3 and the second movable pulley 402 on new running block 5, now unclamp the nylon rope fag end be fixed on reel 1, this nylon rope 6 is positioned on the second fixed pulley 302 of fixed pulley group 3, and the order Stagger-wrap pressing the 3rd movable pulley 403 on the old running block of wirerope-winding 4 is on the movable pulley corresponding to new running block 5, afterwards nylon rope fag end is retightened on position identical on reel,
Step 106) continue to rotate forward reel 1, until when steel rope second fag end 202 has been wound on the 3rd movable pulley 403 of new running block 5, now again unclamp the nylon rope fag end be fixed on reel 1, nylon rope 6 is positioned on the 3rd fixed pulley 303 on fixed pulley group 3 end, and on the order Stagger-wrap pressing the 4th movable pulley 403 on the old running block of wirerope-winding 4 last movable pulley on new running block 5 end, afterwards nylon rope fag end is retightened on position identical on reel;
Step 107) continue to rotate forward reel 1, until when steel rope second fag end 202 is wrapped on reel 1 with nylon rope 6, disconnect the connection of this nylon rope and steel rope second fag end 202, now steel rope first fag end 201 is also wound in the opposite side of reel 1;
Step 108) steel rope first fag end 201 and steel rope the 2 202 are fixed on reel 1 with a pressing plate respectively, continue afterwards to rotate forward reel 1, to wire rope winding, and reinstall the limit switch that reel 1 is arranged, complete the synchronous replacing of running block in crane in bridge type.
In addition, in step 104) in, after described nylon rope 6 is wound around in fixed pulley group 3 and new running block 5, the end of this nylon rope 6 along moving direction can be connected with other any steel ropes, to realize the synchronous replacement of running block and steel rope.
It should be noted last that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted.Although with reference to embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, modify to technical scheme of the present invention or equivalent replacement, do not depart from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (3)
1., for the method that running block in crane in bridge type is changed, it is characterized in that, comprising:
Step 1) remove limit switch on reel, by spool turns, the old running block that steel rope is wound around is transferred to operating area;
Step 2) fag end of the one section of steel rope be wound around between old running block one end and reel is pulled out, make this fag end freely sagging, the one section of steel rope be wound around between the old running block other end and reel is peeled off from reel;
Step 3) by placed side by side in the side of old running block for the new running block replaced, one end of steel rope is made to continue to be wound around on reel by rotating drum, make freely sagging fag end move down, and the other end of haulage cable move to reel along the winding route between fixed pulley group and running block simultaneously;
Step 4) after steel rope departs from a fixed pulley in fixed pulley group and a movable pulley on old running block, a nylon rope is wound around in the same position of the new running block of this fixed pulley and replacement, described nylon rope is identical with the winding route of steel rope, and the end of this nylon rope along moving direction is docked with fag end freely sagging on steel rope, this nylon rope is fixed on reel along the front end of moving direction;
Step 5) continue rotating in same direction reel, traction nylon rope moves along being wound around route to reel, after steel rope departs from another fixed pulley in fixed pulley group and another movable pulley on old running block, perform step 4), until nylon rope is wound to after on last fixed pulley in fixed pulley group and last movable pulley on new running block perform step 6);
Step 6) continue rotating in same direction reel, the wirerope-winding of traction and nylon rope end on to reel after, nylon rope is peeled off from steel rope;
Step 7) two ends of steel rope are individually fixed in the both sides of reel, and limit switch is reinstalled on reel.
2. the method changed for running block in crane in bridge type according to claim 1, is characterized in that, staggered being wound between fixed pulley and movable pulley of described steel rope.
3. the method changed for running block in crane in bridge type according to claim 1, it is characterized in that, the two ends of described steel rope are fixed on reel by pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510141937.5A CN104803285B (en) | 2015-03-27 | 2015-03-27 | A kind of method that running block is changed in bridge crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510141937.5A CN104803285B (en) | 2015-03-27 | 2015-03-27 | A kind of method that running block is changed in bridge crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104803285A true CN104803285A (en) | 2015-07-29 |
| CN104803285B CN104803285B (en) | 2016-09-28 |
Family
ID=53688564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510141937.5A Expired - Fee Related CN104803285B (en) | 2015-03-27 | 2015-03-27 | A kind of method that running block is changed in bridge crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104803285B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044574A (en) * | 2016-06-06 | 2016-10-26 | 山东钢铁股份有限公司 | Method for synchronously replacing gantry beam and steel wire ropes of ladle crane |
| CN106586871A (en) * | 2017-01-11 | 2017-04-26 | 唐山首钢京唐西山焦化有限责任公司 | Method for replacing movable pulley block of coke dry quenching elevator |
| CN109019306A (en) * | 2018-09-04 | 2018-12-18 | 宣化钢铁集团有限责任公司 | A kind of method of quick-replaceable bridge crane single hook head |
| CN110436365A (en) * | 2019-07-26 | 2019-11-12 | 山东钢铁股份有限公司 | Crane rope replacing options |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2258662C2 (en) * | 2002-07-25 | 2005-08-20 | Федеральное государственное унитарное предприятие "Конструкторское бюро "Мотор" | Method of replacement of wire rope in hoisting device |
| CN101712443A (en) * | 2009-12-22 | 2010-05-26 | 舞阳钢铁有限责任公司 | Quick replacement method of steel cables of crane |
| JP2012056716A (en) * | 2010-09-09 | 2012-03-22 | Mitsubishi Electric Corp | Method and apparatus for replacing main rope of elevator |
| CN102887426A (en) * | 2012-09-27 | 2013-01-23 | 山东丰汇设备技术有限公司 | Full-magnification transformed and multi-fetching device interchangeable combined lifting device and using method for combined lifting device |
| CN103274323A (en) * | 2013-06-13 | 2013-09-04 | 济钢集团有限公司 | Quick replacement method for movable pulley blocks and wire ropes in cranes |
-
2015
- 2015-03-27 CN CN201510141937.5A patent/CN104803285B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2258662C2 (en) * | 2002-07-25 | 2005-08-20 | Федеральное государственное унитарное предприятие "Конструкторское бюро "Мотор" | Method of replacement of wire rope in hoisting device |
| CN101712443A (en) * | 2009-12-22 | 2010-05-26 | 舞阳钢铁有限责任公司 | Quick replacement method of steel cables of crane |
| JP2012056716A (en) * | 2010-09-09 | 2012-03-22 | Mitsubishi Electric Corp | Method and apparatus for replacing main rope of elevator |
| CN102887426A (en) * | 2012-09-27 | 2013-01-23 | 山东丰汇设备技术有限公司 | Full-magnification transformed and multi-fetching device interchangeable combined lifting device and using method for combined lifting device |
| CN103274323A (en) * | 2013-06-13 | 2013-09-04 | 济钢集团有限公司 | Quick replacement method for movable pulley blocks and wire ropes in cranes |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106044574A (en) * | 2016-06-06 | 2016-10-26 | 山东钢铁股份有限公司 | Method for synchronously replacing gantry beam and steel wire ropes of ladle crane |
| CN106044574B (en) * | 2016-06-06 | 2017-07-07 | 山东钢铁股份有限公司 | The synchronous method for changing ladle carne gantry beam and steel wire rope |
| CN106586871A (en) * | 2017-01-11 | 2017-04-26 | 唐山首钢京唐西山焦化有限责任公司 | Method for replacing movable pulley block of coke dry quenching elevator |
| CN109019306A (en) * | 2018-09-04 | 2018-12-18 | 宣化钢铁集团有限责任公司 | A kind of method of quick-replaceable bridge crane single hook head |
| CN109019306B (en) * | 2018-09-04 | 2019-08-06 | 宣化钢铁集团有限责任公司 | A kind of method of quick-replaceable bridge crane single hook head |
| CN110436365A (en) * | 2019-07-26 | 2019-11-12 | 山东钢铁股份有限公司 | Crane rope replacing options |
| CN110436365B (en) * | 2019-07-26 | 2021-03-05 | 山东钢铁股份有限公司 | Method for replacing steel wire rope of crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104803285B (en) | 2016-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104828696B (en) | A kind of method for running block in bridge crane and steel rope replacing | |
| CN104944282B (en) | A kind of method for steel rope replacing in crane | |
| CN104803285A (en) | Method for replacing movable pulley block in bridge crane | |
| CN103274323B (en) | A kind of crane pulley group and steel wire rope quick-replaceable method | |
| CN202481651U (en) | Functional device capable of replacing and repairing tape quickly | |
| CN104590812A (en) | Tape replacing machine for replacing belt type conveyor adhesive tape | |
| CN107651546B (en) | The main replacing lifting ropes of multi-rope technique of vertical | |
| JP2013249678A (en) | Replacement method of oblique cable and temporary hanger for replacing oblique cable | |
| CN104631329B (en) | A kind of suspension bridge continuous way cat road integral linear method of adjustment | |
| CN205397744U (en) | Experimental automatic coiling and uncoiling device of on --spot multiunit that overhauls of transformer substation | |
| CN104668309A (en) | Automatic enameled wire feeding, moving and paying-off device | |
| CN206318579U (en) | Transport pipe flatcar cable automatic retraction device | |
| CN103588092B (en) | A kind of method adopting auxiliary device more change steel rope | |
| CN103287997B (en) | Double-layer winding hoisting mechanism | |
| CN104659708A (en) | Electric winch for power transmission line | |
| CN106044574A (en) | Method for synchronously replacing gantry beam and steel wire ropes of ladle crane | |
| CN202816449U (en) | Composable traveling cable of lift | |
| JP2018065558A (en) | Device and method to relocate support cable for cableway equipment | |
| CN204475035U (en) | A kind of three strands of machines | |
| CN103708371A (en) | Cable-driving rope replacing mechanism | |
| CN203865920U (en) | Steel wire rope winding structure for large-tonnage crane hoisting mechanism | |
| CN204030524U (en) | A kind of cable handler and towing cable system | |
| CN203612868U (en) | Cable-driven rope exchange mechanism | |
| CN204416307U (en) | For changing the tape swapping machine of conveyor belt running | |
| CN104724615A (en) | Penetrating and winding method of large-diameter variable-amplitude steel wire rope of large moving-arm type tower crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |