CN103057973A - Multipoint jacking method suitable for changing pivotal bearing of material taking machine - Google Patents
Multipoint jacking method suitable for changing pivotal bearing of material taking machine Download PDFInfo
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- CN103057973A CN103057973A CN2012102139768A CN201210213976A CN103057973A CN 103057973 A CN103057973 A CN 103057973A CN 2012102139768 A CN2012102139768 A CN 2012102139768A CN 201210213976 A CN201210213976 A CN 201210213976A CN 103057973 A CN103057973 A CN 103057973A
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Abstract
The invention discloses a multipoint jacking method suitable for changing a pivotal bearing of a material taking machine. A center adjustment of the material taking machine is achieved by utilizing a support tower frame and a jack set which is operated synchronously and adjusting the size of a weight which is arranged on a cantilever, and difficulty and risk of jacking operation are reduced. Due to the fact that a plurality of supporting points are arranged on the material taking machine in a jacking operation, the multipoint jacking method suitable for changing the pivotal bearing of the material taking machine improves stability of a center of gravity of the material taking machine in a changing operation, fully and effectively reduces changing difficulty of the pivotal bearing of the material taking machine, reduces the risk of the changing operation and improves changing efficiency.
Description
Technical field
The present invention relates to a kind of reclaimer axis of revolution and change the method for operation, particularly a kind of method that is applicable to the multiple spot jacking of reclaimer swing bearing replacing.
Background technology
Reclaimer is the continuously high-efficiency appliance of loading and unloading of the ancestor of modern chemical industry sparetime university bulk material, is widely used at present the stacking and taking operation in the bulk cargos such as harbour, harbour, metallurgy, cement, steel plant, coke-oven plant, coal storage plant, power plant (ore, coal, coke, sandstone etc.) storage stock ground.In the production, the setting height(from bottom) of the radius of turn of reclaimer and upper junction member generally all reaches tens of rice, if adopt jack-block to change the swing bearing of wearing and tearing, the upper junction member integral body of reclaimer need to be raised to suitable height, and the upper junction member of reclaimer be all about 240 tons.This shows, lifting operation is a high risk operation, in order to reduce operating risk, the greateset risk of lifting operation is controlled in the scope that can regulate and control, generally need to reduce the height of gravitational center of reclaimer upper junction member, and will avoid center of gravity to exceed in the support scope of reclaimer.Also need to reduce simultaneously the load of each resting point, to improve the safety factor of reclaimer jacking operation.
Summary of the invention
For addressing the above problem, the invention discloses a kind of method that is applicable to the multiple spot jacking of reclaimer swing bearing replacing, center-of-gravity position by adjusting reclaimer and multi-point support is set improves the balance of reclaimer in the jacking operation, reduced the difficulty that reclaimer is changed axis of revolution.
The method that is applicable to the multiple spot jacking of reclaimer swing bearing replacing disclosed by the invention, comprise the steps: that (1) install respectively two support tower under the cantilever two ends of reclaimer, the support tower of cantilever front end is the front end pylon, and the support tower of cantilever tail end is middle pylon; (2) below each support tower, lay jack; Below the turn table of reclaimer, lay jack around the swing bearing; (3) counterweight of the reclaimer on the dismounting cantilever makes the center of gravity of reclaimer upper junction member to the cantilever front end, i.e. the direction of bucket wheel skew guarantees that center of gravity is in the two large centres of supporting, turn table place of front end pylon and the door frame of cantilever; When (4) jacking operated, pylon and each jack of turn table place carried out jacking in the middle of the synchronous operation, and the jack of front end pylon below is followed and carried out the jacking operation; (5) the jacking operation is finished, and changes swing bearing, and when doing the decline operation, the jack of front end pylon below is at first done step-down operation, and then pylon and each jack of turn table place descend in the middle of the synchronous operation.The method that is applicable to the multiple spot jacking of reclaimer swing bearing replacing disclosed by the invention, by in the jacking operation, support tower being set and below support tower and turn table, jack being set, realized reclaimer multipoint operation when lifting operation, reduced the load of each strong point, improved the stability that reclaimer upper junction member supports in the lifting operation, reduced the risk of lifting operation, adopting simultaneously the mode of multiple spot jacking to also help avoids the upper junction member to be out of shape because load is excessive, reduce the impact of environmental factor on lifting operation, improved the safe reliability of lifting operation.
At least 3 jacks are laid in a kind of improvement that is applicable to the method for the multiple spot jacking that the reclaimer swing bearing changes disclosed by the invention below each support tower in the step (2); Below the turn table of reclaimer, lay at least 3 jacks around the swing bearing.This improvement is by all arranging at least 3 jacks below support tower and turn table, supporting construction is stable, and is easy for installation, with low cost, easy to operate, practical.
Another improvement that is applicable to the method for the multiple spot jacking that the reclaimer swing bearing changes disclosed by the invention, the counterweight of all or part of reclaimer in the step (3) on the dismounting cantilever.This improvement has realized the adjustment control to the reclaimer center of gravity by adjusting the counterweight on the cantilever, guarantees reclaimer steadily of centre of gravity in lifting operation, has reduced the difficulty of reclaimer axis of revolution replacing operation, has reduced the risk of installing, and improves the safety of production operation.
The method that is applicable to the multiple spot jacking of reclaimer swing bearing replacing disclosed by the invention, by changing in the operation at the reclaimer axis of revolution, adopt the operational method of multiple spot jacking, jointly form a plurality of resting points by the support tower that is arranged on the cantilever two ends and turn table, with the load that disperses each point to be born, improve the balanced capacity in the reclaimer jacking operation.Pass through simultaneously to adjust counterweight on the cantilever, realize adjustment and control to the reclaimer center of gravity, improve the balance of reclaimer in the jacking operation, reduced the difficulty of reclaimer replacing axis of revolution.
Description of drawings
The apparatus structure scheme drawing of Fig. 1, reclaimer multiple spot lifting operation of the present invention;
Fig. 2, reclaimer of the present invention stressed scheme drawing in lifting operation;
Fig. 3, the reclaimer of the present invention scheme drawing that jack is arranged under the support tower in lifting operation;
The structural representation of lifting device under the turn table of Fig. 4, reclaimer of the present invention.
Reference numerals list:
1, bucket wheel; 2, cantilever; 3, counterweight;
4, turn table; 5, swing bearing; 6, door frame;
7, support tower; 8, jack
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand the following specific embodiment and only be used for explanation the present invention and be not used in and limit the scope of the invention.
As shown in Figures 1 to 4, the method that is applicable to the multiple spot jacking of reclaimer swing bearing replacing disclosed by the invention, comprise the steps: that (1) install respectively two support tower 7 under cantilever 2 two ends of reclaimer, the support tower 7 of cantilever 2 front ends is the front end pylon, and the support tower 7 of cantilever 2 tail ends is middle pylon; (2) below each support tower 7, lay jack 8; Below the turn table 4 of reclaimer, lay jack 8 around the swing bearing 5; (3) counterweight 3 of the reclaimer on the dismounting cantilever 2 makes the center of gravity of reclaimer upper junction member to outstanding 2 arm front ends, i.e. the direction of bucket wheel 1 skew guarantees that center of gravity is in the two large centres of supporting, turn table 4 places of front end pylon and the door frame 6 of cantilever 2; When (4) jacking operated, pylon and each jack 8 of turn table 4 places carried out jacking in the middle of the synchronous operation, and the jack 8 of front end pylon below is followed and carried out the jacking operation; (5) the jacking operation is finished, and changes swing bearing 5, and when doing the decline operation, the jack 8 of front end pylon below is at first done step-down operation, and then pylon and each jack 8 of turn table 4 places descend in the middle of the synchronous operation.The method that is applicable to the multiple spot jacking of reclaimer axis of revolution replacing disclosed by the invention, by in the jacking operation, support tower being set and below support tower and turn table, jack being set, realized reclaimer multipoint operation when lifting operation, reduced the load of each strong point, improved the stability that reclaimer upper junction member supports in the lifting operation, reduced the risk of lifting operation, adopting simultaneously the mode of multiple spot jacking to also help avoids the upper junction member to be out of shape because load is excessive, reduce the impact of environmental factor on lifting operation, improved the safe reliability of lifting operation.
As a kind of preferred, below each support tower 7, lay at least 3 jacks 8 in the step (2); Below the turn table 4 of reclaimer, lay at least 3 jacks 8 around the swing bearing 5.By at least 3 jacks all are set below support tower and turn table, supporting construction is stable, and is easy for installation, with low cost, easy to operate, practical.On each strong point, for example, the jack group of three jack 8 compositions is arranged on the bottom of support tower to jack in the jack group in the mode of equicrural triangle again with the rock-steady structure scattering device; Four then with tetragonal form setting; Five then can be pentagon or the setting of center of area form; Six then can be with parallelly-arranged double-row structure etc.
As a kind of preferred, the counterweight 3 of all or part of reclaimer in the step (3) on the dismounting cantilever 2.By adjusting the counterweight on the cantilever, realized the adjustment control to the reclaimer center of gravity, guarantee reclaimer steadily of centre of gravity in lifting operation, reduced the difficulty of reclaimer axis of revolution replacing operation, reduced the risk of installing, improve the safety of production operation.
In the lifting operation, all or part of counterweight 3 of dismounting reclaimer makes the center of gravity of reclaimer upper junction member to cantilever 2 front ends, i.e. the direction of bucket wheel 1 skew guarantees that center of gravity is between the support tower 7 and the turn table 4 on the door frame 6 of cantilever 2 front ends.
During the jacking operation, the support tower 7 in the middle of the synchronous operation and each jack 8 at turn table 4 places carry out jacking, and the jack 8 of support tower 7 belows of front end is followed and carried out the jacking operation.
The jacking operation is finished, and during the decline operation, some jacks 8 of support tower 7 belows of front end are at first done step-down operation, then descends with support tower 7 and each jack 8 of turn table 4 places in the middle of section's operation.
After jack 8 in each lifting device was installed also pre-jacking, disengaging section or whole counterweights 3 guaranteed that the center of gravity of reclaimer upper junction member is between the support tower 7 and turn table 4 of front end.Support tower 7 bottoms also are provided with fixing supporting leg, and the height of the jack 8 that the height of supporting leg is laid a little more than needs is so that the installing/dismounting of jack 8.Backing plate is laid in the bottom of support tower 7, to improve stability and the reliability that supports.Below turn table 4, some jacks turn 8 around swing bearing 5 settings, jack 8 is placed between turn table 4 and the door frame 6, center of gravity because of the upper junction member in the lifting operation moves forward, the load of being born with door frame 6 diminishes, each jack 8 load of bearing herein is also corresponding greatly to be reduced, thereby the difficulty of changing swing bearing 5 operations after the jacking also correspondingly reduces.
The method that is applicable to the multiple spot jacking of reclaimer swing bearing replacing disclosed by the invention, by changing in the operation at the reclaimer axis of revolution, adopt the operational method of multiple spot jacking, jointly form a plurality of resting points by the support tower that is arranged on the cantilever two ends and turn table, with the load that disperses each point to be born, improve the balanced capacity in the reclaimer jacking operation.Pass through simultaneously to adjust counterweight on the cantilever, realize adjustment and control to the reclaimer center of gravity, improve the balance of reclaimer in the jacking operation, reduced the difficulty of reclaimer replacing axis of revolution.
The disclosed technological means of the present invention program is not limited only to the disclosed technological means of above-mentioned technological means, also comprises the technical scheme that is comprised of above technical characterictic combination in any.
Claims (2)
1. method that is applicable to the multiple spot jacking that the reclaimer swing bearing changes, it is characterized in that: the described method that is applicable to the multiple spot jacking that the reclaimer swing bearing changes comprises the steps: that (1) install respectively two support tower under the cantilever two ends of reclaimer, the support tower of cantilever front end is the front end pylon, and the support tower of cantilever tail end is middle pylon; (2) below each support tower, lay jack; Below the turn table of reclaimer, lay jack around the swing bearing; (3) counterweight of the reclaimer on the dismounting cantilever makes the center of gravity of reclaimer upper junction member to the cantilever front end, i.e. the direction of bucket wheel skew guarantees that center of gravity is in the two large centres of supporting, turn table place of front end pylon and the door frame of cantilever; When (4) jacking operated, pylon and each jack of turn table place carried out jacking in the middle of the synchronous operation, and the jack of front end pylon below is followed and carried out the jacking operation; (5) the jacking operation is finished, and changes swing bearing, and when doing the decline operation, the jack of front end pylon below is at first done step-down operation, and then pylon and each jack of turn table place descend in the middle of the synchronous operation.
2. the method that is applicable to the multiple spot jacking of reclaimer swing bearing replacing according to claim 1 is characterized in that: lay 3 jacks in the step (2) below each support tower at least; Below the turn table of reclaimer, lay at least 3 jacks around the swing bearing
The method that is applicable to the multiple spot jacking of reclaimer swing bearing replacing according to claim 1 is characterized in that: the counterweight of all or part of reclaimer in the step (3) on the dismounting cantilever.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210213976.8A CN103057973B (en) | 2012-06-27 | 2012-06-27 | Multipoint jacking method suitable for changing pivotal bearing of material taking machine |
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| CN201210213976.8A CN103057973B (en) | 2012-06-27 | 2012-06-27 | Multipoint jacking method suitable for changing pivotal bearing of material taking machine |
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| CN103057973A true CN103057973A (en) | 2013-04-24 |
| CN103057973B CN103057973B (en) | 2014-12-24 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817507A (en) * | 2014-03-07 | 2014-05-28 | 中国神华能源股份有限公司 | Replacement method for pitching hinged point bearing of reclaimer |
| 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 |
| CN104259738A (en) * | 2014-07-30 | 2015-01-07 | 东北大学 | Replacement method of revolving bearing of material taking machine |
| CN105417196A (en) * | 2015-12-10 | 2016-03-23 | 大连华锐重工集团股份有限公司 | Hinged column type double-pull-rod cantilever stacker |
| CN105621114A (en) * | 2016-03-24 | 2016-06-01 | 华电重工股份有限公司 | Material piling and taking machine and revolving platform thereof |
| CN103449194B (en) * | 2013-08-31 | 2016-08-10 | 南京梅山冶金发展有限公司 | A kind of method utilizing the pitching oil cylinder release floating jacking to expecting the replacing of machine floating bearing |
| CN106144651A (en) * | 2016-08-23 | 2016-11-23 | 大连奇重机电成套设备有限公司 | Hanging arm type bucket wheel stacker-reclaimer luffing mechanism balance detecting device |
| CN106542344A (en) * | 2015-09-16 | 2017-03-29 | 中冶宝钢技术服务有限公司 | The replacing options of stacker-reclaimer pivoting support |
| CN108608197A (en) * | 2018-07-23 | 2018-10-02 | 大连天重散装机械设备有限公司 | A kind of bucket wheel machine main body steel construction oscillating bearing replacing options |
| CN112227373A (en) * | 2019-08-27 | 2021-01-15 | 内蒙古自治区水利水电勘测设计院 | Rapid concrete warehousing system and warehousing method thereof |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103449194B (en) * | 2013-08-31 | 2016-08-10 | 南京梅山冶金发展有限公司 | A kind of method utilizing the pitching oil cylinder release floating jacking to expecting the replacing of machine floating bearing |
| 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 |
| CN103831577B (en) * | 2014-02-28 | 2016-06-01 | 中国神华能源股份有限公司 | The replacing options of shiploader pitching hinge bearing |
| CN103817507A (en) * | 2014-03-07 | 2014-05-28 | 中国神华能源股份有限公司 | Replacement method for pitching hinged point bearing of reclaimer |
| CN104259738A (en) * | 2014-07-30 | 2015-01-07 | 东北大学 | Replacement method of revolving bearing of material taking machine |
| CN106542344A (en) * | 2015-09-16 | 2017-03-29 | 中冶宝钢技术服务有限公司 | The replacing options of stacker-reclaimer pivoting support |
| CN105417196A (en) * | 2015-12-10 | 2016-03-23 | 大连华锐重工集团股份有限公司 | Hinged column type double-pull-rod cantilever stacker |
| CN105621114A (en) * | 2016-03-24 | 2016-06-01 | 华电重工股份有限公司 | Material piling and taking machine and revolving platform thereof |
| CN106144651A (en) * | 2016-08-23 | 2016-11-23 | 大连奇重机电成套设备有限公司 | Hanging arm type bucket wheel stacker-reclaimer luffing mechanism balance detecting device |
| CN108608197A (en) * | 2018-07-23 | 2018-10-02 | 大连天重散装机械设备有限公司 | A kind of bucket wheel machine main body steel construction oscillating bearing replacing options |
| CN108608197B (en) * | 2018-07-23 | 2019-11-12 | 大连天重散装机械设备有限公司 | A method for replacing the joint bearing of the main steel structure of the bucket wheel machine |
| CN112227373A (en) * | 2019-08-27 | 2021-01-15 | 内蒙古自治区水利水电勘测设计院 | Rapid concrete warehousing system and warehousing method thereof |
| CN112343054A (en) * | 2019-08-27 | 2021-02-09 | 内蒙古自治区水利水电勘测设计院 | Quick concrete warehousing system |
| CN112227373B (en) * | 2019-08-27 | 2022-02-01 | 内蒙古自治区水利水电勘测设计院 | Rapid concrete warehousing system and warehousing method thereof |
| CN112343054B (en) * | 2019-08-27 | 2022-02-01 | 内蒙古自治区水利水电勘测设计院 | Quick concrete warehousing system |
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Effective date of registration: 20210810 Address after: 3520 Tongji Road, Baoshan District, Shanghai 201900 Patentee after: Baowu equipment Intelligent Technology Co.,Ltd. Address before: 210039 new building, Zhonghua Gate, Yuhuatai District, Jiangsu, Nanjing Patentee before: NANJING MEISHAN METALLURGY DEVELOPMENT Co.,Ltd. Patentee before: Shanghai Meishan Iron & steel Co.,Ltd. |
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