CN103590440A - Method of replacing slewing roller disc and circular rail in cable shovel - Google Patents
Method of replacing slewing roller disc and circular rail in cable shovel Download PDFInfo
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- CN103590440A CN103590440A CN201310490664.6A CN201310490664A CN103590440A CN 103590440 A CN103590440 A CN 103590440A CN 201310490664 A CN201310490664 A CN 201310490664A CN 103590440 A CN103590440 A CN 103590440A
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- slewing
- centerpivot
- circular orbit
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Abstract
The invention relates to the technical field of engineering machinery and discloses a convenient, efficient and safe method of replacing a slewing roller disc and a circular rail in a cable shovel. The method includes the steps of unscrewing a central pivot nut; aligning a slewing platform and an underframe beam platform from front to rear, and rotating the slewing platform at an angle of 10-15 DEG; powering off the whole cable shovel; lifting up the slewing platform and parts above the slewing platform with jacks, and placing a support rod beside each jack; replacing a damaged slewing disc or a damaged circular rail; after replacement, removing the support rods and the jacks, powering on the whole cable shovel, and adjusting braking power; tightening the central pivot nut to allow the cable shovel to operate again.
Description
Technical field
The present invention relates to technical field of engineering machinery, a kind ofly specifically can change convenient, efficiently and safely the method for electric dipper slewing dish and circular orbit.
Background technology
Electric dipper slewing roller dish and circular orbit are the annular construction members that power shovel connects top revolving dial and bottom underframe, revolving roll dish is arranged on the middle part of power shovel, by support roller circle and running roller, formed, running roller is fixed in the middle of inside and outside support roller circle, in the operation of circular orbit upper rotary, drive power shovel top centered by centerpivot, to turn round operation.Revolving roll dish and circular orbit, in operation process, need timely replacing as occurred after the phenomenons such as heavy wear, fatigue failure, crackle, to guarantee safety in production.Due to the operation in the wild of mine power shovel, and the ancillary service weight on electric dipper slewing platform and platform reaches more than 200 tons conventionally, cannot integral hoisting, and the particularity of the installation site of revolving roll dish and circular orbit makes operation field change that the workload of electric dipper slewing roller dish and circular orbit is large, work difficulty is high.
Tradition changes the revolving roll dish of power shovel and the method for circular orbit is that whole power shovel is disintegrated, revolving dial is removed, comprise spader, boom, revolving dial, canopy, ballast box, the system such as electric needs all dismountings, changed after the roller dish of breakage or the circular orbit of breakage, need the component that assembly and disassembly gets off again, maintenance duration is long, generally need more than 20 day, employ production auxiliary equipment more, and need skilled pincers worker, electrician, play heavy industry, the mutual cooperation operation of staff of each work posts such as power shovel driver, operating personnel's labour intensity is large, the cost of overhaul is high, in whole maintenance process, there is certain potential safety hazard simultaneously.
Summary of the invention
The object of this invention is to provide a kind of electric dipper slewing roller dish and circular orbit replacing method, to solve, in electric dipper slewing roller dish and circular orbit Renewal process, maintenance duration operating personnel long, that need is many, operating personnel's labour intensity is large, the problem that the cost of overhaul is high.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of electric dipper slewing roller dish and circular orbit replacing method, comprise the following steps:
(1) power shovel is parked in to comparatively smooth position, ground;
(2) unscrew centerpivot nut, nut is moved down, centerpivot nut and centerpivot are not exclusively thrown off;
(3) by after electric dipper slewing platform and the cover off of undercarriage bea platform, slowly operate revolving dial and rotate 10-15 °, then regain scraper bowl, make scraper bowl fall to being placed in ground;
(4) unclamp electric shovel pushing band-type brake, fastening revolution band-type brake, keeps scraper bowl to contact with ground, and rotary system rotation does not occur, complete machine power-off simultaneously;
(5) use many hydraulic jack by electric dipper slewing platform and the whole lifting of above component, then carry out bracing reinforcement with many support bars;
(6) change damaged roller dish or change damaged circular orbit;
(7) after replacing finishes, remove support bar and jack, complete machine power transmission, fastening pushing band-type brake, unclamps revolution band-type brake, adjusts brake sticking brake power, and revolving dial is set back;
(8) screw centerpivot nut, the gap between adjustment pivot nut and centerpivot is to 3-5mm, and power shovel directly drops in engineer operation.
As a further improvement on the present invention, described hydraulic jack is minimum is 4, and the bearing capacity of described jack is minimum is 100 tons.
As of the present invention, further improve, described support bar is round steel, and the quantity of described round steel is identical with the quantity of described jack, and two end faces of described round steel are smooth.
As of the present invention, further improve, the diameter of described round steel is 80-110mm.
Method provided by the present invention, makes the replacing method of power shovel roller dish and circular orbit convenient, efficient, safety, has reduced the cost of overhaul, and its beneficial effect is:
(1) reduced maintainer, not only reduced worker's labour intensity, and coordinated and can complete upkeep operation without too much advanced techniques personnel;
(2) do not need large lifting equipment coordinating operation, only need the support bar of at least 4 hydraulic jack and equal number;
(3) maintenance duration also shortens greatly, has improved the utilization rate of equipment, has strengthened the efficiency of power shovel service work;
(4) overhaul process is simple, has lowered the occurrence probability of accident, the potential safety hazard of having avoided high-altitude junk to injure operating personnel by a crashing object and other machineries are brought.
Accompanying drawing explanation
Fig. 1 is the flow chart of the replacing method of power shovel roller dish and circular orbit;
Fig. 2 is the structural representation of power shovel.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is described in further detail.
Embodiment 1
A kind of electric dipper slewing roller dish and circular orbit replacing method as shown in Figure 1 and Figure 2, comprise the following steps:
(1) power shovel is parked in to comparatively smooth position, ground;
(2) unscrew centerpivot nut, make nut move down 115 millimeters, centerpivot nut and centerpivot are not exclusively thrown off;
(3) by after electric dipper slewing platform and the cover off of undercarriage bea platform, slowly operate revolving dial and rotate 15 degree, to reserve the position of the fulcrum that jack and support bar are installed, then regain scraper bowl, make scraper bowl fall to being placed in ground;
(4) unclamp electric shovel pushing band-type brake, fastening revolution band-type brake, makes electric dipper slewing platform after being propped by jack, and product office can glide automatically, keeps scraper bowl to contact with ground, and rotary system rotation does not occur, complete machine power-off simultaneously;
(5) using 4 bearing capacities is that the jack of 100 tons is by after 105-115 millimeters of the whole liftings of electric dipper slewing platform and above component, with 4, end face smooth round steel smooth, that diameter be 80mm-100mm contour with rising height, as support bar, carry out bracing reinforcement again, to guarantee the safety of lifting operation;
(6) change damaged roller dish or change damaged circular orbit;
(7) after replacing finishes, remove support bar and jack, complete machine power transmission, fastening pushing band-type brake, unclamps revolution band-type brake, adjusts brake sticking brake power, and revolving dial is set back;
(8) finally screw centerpivot nut, the gap between adjustment pivot nut and centerpivot is to 3-5mm, and without the debugging of carrying out electrical system, power shovel directly drops in engineer operation.
Claims (4)
1. an electric dipper slewing roller dish and circular orbit replacing method, is characterized in that: comprise the following steps:
(1) power shovel is parked in to comparatively smooth position, ground;
(2) unscrew centerpivot nut, nut is moved down, centerpivot nut and centerpivot are not exclusively thrown off;
(3) by after electric dipper slewing platform and the cover off of undercarriage bea platform, slowly operate revolving dial and rotate 10-15 °, then regain scraper bowl, make scraper bowl fall to being placed in ground;
(4) unclamp electric shovel pushing band-type brake, fastening revolution band-type brake, keeps scraper bowl to contact with ground, and rotary system rotation does not occur, complete machine power-off simultaneously;
(5) use hydraulic jack by electric dipper slewing platform and the whole lifting of above component, then carry out bracing reinforcement with many support bars;
(6) change damaged roller dish or change damaged circular orbit;
(7) after replacing finishes, remove support bar and jack, complete machine power transmission, fastening pushing band-type brake, unclamps revolution band-type brake, adjusts brake sticking brake power, and revolving dial is set back;
(8) screw centerpivot nut, the gap between adjustment pivot nut and centerpivot is to 3-5mm, and power shovel directly drops in engineer operation.
2. electric dipper slewing roller dish according to claim 1 and circular orbit replacing method, is characterized in that: described hydraulic jack is minimum is 4, and the bearing capacity of described every jack is minimum is 100 tons.
3. electric dipper slewing roller dish according to claim 1 and circular orbit replacing method, is characterized in that: described support bar is round steel, and the quantity of described round steel is identical with the quantity of described jack, and two end faces of described round steel are smooth.
4. according to the electric dipper slewing roller dish described in claim 1 or 3 and circular orbit replacing method, it is characterized in that: the diameter of described round steel is 80-110mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310490664.6A CN103590440A (en) | 2013-10-19 | 2013-10-19 | Method of replacing slewing roller disc and circular rail in cable shovel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310490664.6A CN103590440A (en) | 2013-10-19 | 2013-10-19 | Method of replacing slewing roller disc and circular rail in cable shovel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103590440A true CN103590440A (en) | 2014-02-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310490664.6A Pending CN103590440A (en) | 2013-10-19 | 2013-10-19 | Method of replacing slewing roller disc and circular rail in cable shovel |
Country Status (1)
| Country | Link |
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| CN (1) | CN103590440A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108978763A (en) * | 2018-07-16 | 2018-12-11 | 芜湖辉林奥远自动化科技有限公司 | A kind of replacing options of the rotary track of mechanical equipment |
| CN110258708A (en) * | 2019-06-04 | 2019-09-20 | 甘肃酒钢集团宏兴钢铁股份有限公司 | The replacing options of 4 vertical shovel centerpivots |
-
2013
- 2013-10-19 CN CN201310490664.6A patent/CN103590440A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 王尚斌: ""支顶法更换电铲回转辊盘与环形轨在生产中的应用"", 《酒钢科技》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108978763A (en) * | 2018-07-16 | 2018-12-11 | 芜湖辉林奥远自动化科技有限公司 | A kind of replacing options of the rotary track of mechanical equipment |
| CN110258708A (en) * | 2019-06-04 | 2019-09-20 | 甘肃酒钢集团宏兴钢铁股份有限公司 | The replacing options of 4 vertical shovel centerpivots |
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Application publication date: 20140219 |