CN104609320B - Method for replacing hinge support bearing of crane boom - Google Patents
Method for replacing hinge support bearing of crane boom Download PDFInfo
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- CN104609320B CN104609320B CN201510008934.4A CN201510008934A CN104609320B CN 104609320 B CN104609320 B CN 104609320B CN 201510008934 A CN201510008934 A CN 201510008934A CN 104609320 B CN104609320 B CN 104609320B
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- Prior art keywords
- support
- arm support
- hanger
- cucurbit
- hinged
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention provides a method for replacing a hinge support bearing of a crane boom. The method comprises the following steps: 1, mounting a rigid support on the back side of a hinge support, and propping the end part of the boom by using the rigid support to prevent the boom from moving backward; 2, mounting a plurality of lifting lugs, meeting a load requirement, between the boom and a turnplate; 3, mounting a steel wire rope, a first hoist, a second hoist on each lifting lug, and detaching a rotating shaft of the boom; 4, regulating the first hoist and the second hoist to enable the boom to break away from the hinge support and move upwardly along the rigid support as well as expose a bearing of the boom, and repairing and replacing the bearing of the boom; 5, regulating the first hoist and the second hoist to enable the boom to move downwardly along the rigid support back to the hinge support, and mounting the rotating shaft to repair or replace the bearing of the boom. By the method, the fact that large-tonnage hoisting equipment is used for hoisting a crane boom system can be avoided, so that money, time and labor are saved.
Description
Technical field
The present invention relates to a kind of replacing options of crane arm support hinged-support bearing.
Background technology
At this stage, crane arm support system hinged-support bearing is if there is problem, when needing repairing or changing, Normal practice
It is that boom system dismounting is hung, then bearing is carried out with maintenance to change, then boom system is lifted on crane again.This
The method of kind needs whole boom system to disassemble to be placed on ground and again lift back crane it is therefore desirable to use big ton
Position or the hanging device of big elevating height, take larger using area, long construction period, security risk is larger, this routine
Method is expensive, time-consuming, laborious.
Content of the invention
The technical problem to be solved is, provides a kind of replacing options of crane arm support hinged-support bearing,
It can be avoided that being lifted to crane arm support system using large-tonnage hanging device, saving money, saving time, laborsaving.
In order to solve above-mentioned technical problem, the invention provides a kind of replacing options of crane arm support hinged-support bearing,
It is characterized in that, comprise the steps：
Step one, installs rigid support on rear side of hinged-support, withstands arm support end using rigid support, prevent arm support backward
Mobile；
Step 2, installs multiple hangers meeting load requirement on arm support, rotating disk and column；
Step 3, installs hoisting sling on each hanger, then dismantles the rotary shaft of arm support；Wherein, described hoisting hook
Tool includes steel wire rope, is used for the shackle that steel wire rope is connected on hanger, the first cucurbit being used for elastic steel wire rope and the second calabash
Reed；
Step 4, adjusts the first cucurbit and the second cucurbit, so that arm support is departed from hinged-support and move up along rigid support, makes
The bearing of arm support exposes, and carries out maintenance or the replacing of arm support bearing；
Step 5, adjusts the first cucurbit and the second cucurbit, so that arm support is moved down along rigid support and return in hinged-support, and
Rotary shaft is installed, completes maintenance or the replacing of arm support bearing.
As a kind of specific embodiment of technique scheme, in step one, described rigid support is fixedly mounted on
On column on rear side of described hinged-support or support, the contact surface with described arm support end is a perpendicular, provides water for arm support
Square to restraining force, formed the first constriction.
Further, in step 2, the symmetrical both sides of described arm support are separately installed with the first hanger；Described hinged
Symmetrical second hanger with respect to described arm support is provided with the described rotating disk of seat front side；Column above described rotating disk
Or symmetrical 3rd hanger with respect to described arm support is provided with support.
Further, in step 3, it is connected with the first hanger, the second hanger by shackle using steel wire rope, and described
Described first cucurbit is arranged on the steel wire rope between the first hanger and the second hanger, provides restraining force diagonally downward for arm support,
Form the second constriction；It is connected with the first hanger, the 3rd hanger by shackle using steel wire rope, and in described first hanger and
Described second cucurbit is arranged on the steel wire rope between three hangers, provides, for arm support, the restraining force tilting upward, form the 3rd constraint
Portion.
Further, positioned at described first hanger of described arm support homonymy, the second hanger and the 3rd hanger be in same vertically
In plane.
Preferably, described first cucurbit and the second cucurbit are bottle gouard moved by hands or electric block.
Implement a kind of replacing options of crane arm support hinged-support bearing of the present invention, compared with prior art, have
Following beneficial effect：In the case of not dismantling boom system, load onto rigid support as on arm support in curl ring temporarily
The track of lower movement, coordinates some fastenings and constraint frock（As hanger, steel wire rope, shackle）, using cucurbit, pull arm support to depart from
Hinged-support, thus being repaired to the hinged-support bearing exposing or being changed.As the method has been avoided that crane arm support system is hung
Hang oneself lower work, save equipment hoisting expense and artificial put into, shorten maintenance cycle, and improve the security of operation；And
Can reduce by 50% to 70% maintenance and renovation fund, there is good economic benefit.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, the accompanying drawing of embodiment simply will be situated between below
Continue.
Fig. 1 is a kind of front view of specific embodiment of bearing replacing method of the present invention；
Fig. 2 is the side view of Fig. 1 embodiment；
Fig. 3 is the front view that in Fig. 1 embodiment, arm support departs from during hinged-support；
Fig. 4 is the side view that in Fig. 1 embodiment, arm support departs from during hinged-support.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
In conjunction with referring to shown in Fig. 1 to Fig. 4, a kind of replacing options of crane arm support hinged-support bearing of the present invention, its bag
Include following steps：
Step one, installs rigid support 5 in hinged-support 1 rear side, withstands arm support 2 end using rigid support 5, prevent arm support
2 are moved rearwards by；When being embodied as, at crane arm support scene, the height h size of rigid support 5 is installed in first measurement, and makes
Length a of rigid support and width b size；Then the calculating according to above-mentioned size and bearing capacity, preformed rigid supports 5, rigidity
Support 5 frock material selection section bar（Rolled steel joist or channel-section steel）；Rigid support 5 surface is propped up the circular arc of arm support 2 end
Face, the supporting leg of rigid support 5 and the column 4 being arranged on hinged-support 1 rear side or support welding.It can further be stated that rigid support
5 is a perpendicular with the contact surface of described arm support 2 end, provides the restraining force of horizontal direction for arm support 2, forms the first constraint
Portion.
Step 2, installs multiple hangers meeting load requirement on arm support 2, rotating disk 3 and column 4；Wherein, in described arm
The symmetrical both sides of frame 2 are separately installed with the first hanger 61；The described rotating disk 3 of described hinged-support 1 front side is provided with phase
Symmetrical second hanger 62 for described arm support 2；It is provided with column 4 above described rotating disk 3 or support relatively
Symmetrical 3rd hanger 63 in described arm support.When being embodied as, Strength co-mputation is carried out to each hanger according to load requirement,
By the installation site of each hanger above-mentioned, position the first hanger 61 on arm support 2, on the second hanger 62 and column 4 on rotating disk 3
The 3rd hanger 63, and be welded and fixed.Also need to after welding do the Non-Destructive Testing of weld seam, make weld seam meet steel construction one-level
The requirement of weld seam.
Step 3, installs hoisting sling on each hanger, then dismantles the rotary shaft 10 of arm support 2；Wherein, described lifting
Suspender includes steel wire rope 7, the first cucurbit 91 being used for steel wire rope 7 shackle 8 being connected on hanger, being used for elastic steel wire rope 7
With the second cucurbit 92；Preferably, described first cucurbit 91 and the second cucurbit 92 are bottle gouard moved by hands or electric block.It is embodied as
When, it is connected with the first hanger 61, the second hanger 62 by shackle 8 using steel wire rope 7, and hang in described first hanger 61 and second
Described first cucurbit 91 is arranged on the steel wire rope 7 between ear 62, provides restraining force diagonally downward for arm support 2, form second about
Bundle portion；It is connected with the first hanger 61, the 3rd hanger 63 by shackle 8 using steel wire rope 7, and in described first hanger the 61, the 3rd
Described second cucurbit 92 is arranged on the steel wire rope 7 between hanger 63, provides, for arm support 2, the restraining force tilting upward, form the 3rd
Constriction.Additionally, before hoisting sling is installed, needing to carry out force analysis and its intensity compound nucleus of hoisting sling, to ensure
The safety coefficient of steel wire rope and cucurbit meet related technical requirements with shackle.After hoisting sling is installed, slowly adjust first
Cucurbit 91 and the second cucurbit 92, can dismantle the rotary shaft 10 of arm support 1, namely pass through above-mentioned first after making steel wire rope 7 holding force
Constriction, the second constriction, the 3rd constriction make the stress of arm support 2 be in poised state, are effectively prevented from dismounting and rotate
There is escape, collision in axle 10 rear arm support 2, improve operational security.
Step 4, adjusts the first cucurbit 91 and the second cucurbit 92, makes arm support 2 depart from hinged-support 1 along rigid support 5 upwards
Mobile, so that the bearing 11 of arm support 2 is exposed, and carry out maintenance or the replacing of arm support 2 bearing 11.When being embodied as, need to check arm
The rolling bearing 11 of frame 1 and the damaged condition of installation position, if bearing 11 damages can not meet use requirement, will with instrument
Bearing 11 takes out, and more renews bearing；If it is exceeded to install bearing 11 position form and position tolerance precision（As bearing 11 installing hole internal diameter mistake
Greatly）, then should re-start processing maintenance, first fix arm support 1, the more exceeded position of sealing weld, finally process it using boring equipment
Position, reaches requirement and installs bearing 11 again.
Step 5, adjusts the first cucurbit 91 and the second cucurbit 92, make arm support 2 move down along rigid support 5 return to hinged
In seat 1, and rotary shaft 10 is installed, completes maintenance or the replacing of arm support 2 bearing 11.
Also, it should be noted a set of cucurbit each side had due to hinged-support 1（I.e. the first cucurbit 91 and the second calabash
Reed 92）, hanger（I.e. the first hanger 61, the second hanger 62 and the 3rd hanger 63）, shackle 8 and steel wire rope 7 composition hoisting sling,
Should synchronously carry out during operation cucurbit, keep arm support 2 to lean against and stably move up and down in rigid support 5.
Due to considering the stress of arm support 2 and the load requirement of each hanger, will be positioned at described arm support 2 homonymy
Described first hanger 61, the second hanger 62 and the 3rd hanger 63 be in same perpendicular, so that arm support 2 and each hanger
It is in the restrained condition of two dimension, make the first cucurbit 91 and the restraining force of the second cucurbit 92 offer more effectively act on arm support 2
On, improve stability and the efficiency of hoisting sling operation.
It can be seen that, implement a kind of replacing options of crane arm support hinged-support bearing of the present invention, do not dismantle boom system
In the case of, load onto the track that rigid support 5 moves up and down, cooperation hanger, steel wire as arm support 2 in curl ring 3 temporarily
The fastening such as rope 7, shackle 8 and constraint frock, using cucurbit, pull arm support 2 to depart from hinged-support 1, thus to hinged-support 1 axle exposing
Hold 11 to be repaired or change.As the method has been avoided that crane arm support system Left on/Left off works, save equipment hoisting and take
With putting into artificial, shorten maintenance cycle, and improve the security of operation；And can reduce by 50% to 70% maintenance and renovation money
Gold, has good economic benefit.
Above disclosed be only presently preferred embodiments of the present invention, certainly the right of the present invention can not be limited with this
Scope, the equivalent variations therefore made according to scope of the present invention patent, still belong to the scope that the present invention is covered.
Claims (5)
1. a kind of replacing options of crane arm support hinged-support bearing are it is characterised in that comprise the steps：
Step one, installs rigid support on rear side of hinged-support, withstands arm support end using rigid support, prevent arm support to be moved back by
Dynamic, wherein, described rigid support is fixedly mounted on column or the support on rear side of hinged-support, the contact surface with described arm support end
For a perpendicular, provide the restraining force of horizontal direction for arm support, form the first constriction；
Step 2, installs multiple hangers meeting load requirement on arm support, rotating disk and column；
Step 3, installs hoisting sling on each hanger, then dismantles the rotary shaft of arm support；Wherein, described hoisting sling bag
Enclosing wire rope, the first cucurbit for the shackle that steel wire rope is connected on hanger, being used for elastic steel wire rope and the second cucurbit；
Step 4, adjusts the first cucurbit and the second cucurbit, so that arm support is departed from hinged-support and move up along rigid support, makes arm support
Bearing expose, and carry out maintenance or the replacing of arm support bearing；
Step 5, adjusts the first cucurbit and the second cucurbit, so that arm support is moved down along rigid support and return in hinged-support, and install
Rotary shaft, completes maintenance or the replacing of arm support bearing.
2. as claimed in claim 1 a kind of replacing options of crane arm support hinged-support bearing it is characterised in that in step 2
In, the symmetrical both sides of described arm support are separately installed with the first hanger；Described rotating disk on front side of described hinged-support is installed
There is symmetrical second hanger with respect to described arm support；It is provided with respect to institute on column above described rotating disk or support
State symmetrical 3rd hanger of arm support.
3. as claimed in claim 2 a kind of replacing options of crane arm support hinged-support bearing it is characterised in that in step 3
In, it is connected with the first hanger, the second hanger by shackle using steel wire rope, and between described first hanger and the second hanger
Described first cucurbit is arranged on steel wire rope, for arm support offer restraining force diagonally downward, forms the second constriction；Using steel wire rope
It is connected with the first hanger, the 3rd hanger by shackle, and arrange on the steel wire rope between described first hanger and the 3rd hanger
Described second cucurbit, provides, for arm support, the restraining force tilting upward, and forms the 3rd constriction.
4. as claimed in claim 3 a kind of replacing options of crane arm support hinged-support bearing it is characterised in that be located at described
Described first hanger of arm support homonymy, the second hanger and the 3rd hanger are in same perpendicular.
5. as claimed in claim 1 a kind of replacing options of crane arm support hinged-support bearing it is characterised in that described first
Cucurbit and the second cucurbit are bottle gouard moved by hands or electric block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510008934.4A CN104609320B (en) | 2015-01-09 | 2015-01-09 | Method for replacing hinge support bearing of crane boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510008934.4A CN104609320B (en) | 2015-01-09 | 2015-01-09 | Method for replacing hinge support bearing of crane boom |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104609320A CN104609320A (en) | 2015-05-13 |
| CN104609320B true CN104609320B (en) | 2017-02-22 |
Family
ID=53144021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510008934.4A Active CN104609320B (en) | 2015-01-09 | 2015-01-09 | Method for replacing hinge support bearing of crane boom |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103378A (en) * | 1993-06-22 | 1995-06-07 | 波泰股份有限公司 | Apparatus and method for assembly of arm of crane |
| EP1084984A1 (en) * | 1999-09-13 | 2001-03-21 | Atecs Mannesmann AG | Mobile crane, particularly port mobile crane, for normal and heavy loads |
| CN103010979A (en) * | 2012-12-20 | 2013-04-03 | 中联重科物料输送设备有限公司 | Pitch component, disassembly and assembly methods and construction machinery device thereof |
| CN203236194U (en) * | 2013-05-09 | 2013-10-16 | 中国神华能源股份有限公司 | Replacing device for hinged pin roll mechanism of stacker cantilever |
| CN103831577A (en) * | 2014-02-28 | 2014-06-04 | 中国神华能源股份有限公司 | Ship loader pitching hinge point bearing replacement method |
-
2015
- 2015-01-09 CN CN201510008934.4A patent/CN104609320B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103378A (en) * | 1993-06-22 | 1995-06-07 | 波泰股份有限公司 | Apparatus and method for assembly of arm of crane |
| EP1084984A1 (en) * | 1999-09-13 | 2001-03-21 | Atecs Mannesmann AG | Mobile crane, particularly port mobile crane, for normal and heavy loads |
| CN103010979A (en) * | 2012-12-20 | 2013-04-03 | 中联重科物料输送设备有限公司 | Pitch component, disassembly and assembly methods and construction machinery device thereof |
| CN203236194U (en) * | 2013-05-09 | 2013-10-16 | 中国神华能源股份有限公司 | Replacing device for hinged pin roll mechanism of stacker cantilever |
| CN103831577A (en) * | 2014-02-28 | 2014-06-04 | 中国神华能源股份有限公司 | Ship loader pitching hinge point bearing replacement method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104609320A (en) | 2015-05-13 |
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