A method for replacing the rotary cross bearing of a stacker-reclaimer
A replacement method and reclaimer technology, which are applied in metal processing equipment, metal processing, manufacturing tools, etc., can solve the problems of difficult construction, long construction period, limited work site, etc. Raise the effect of low altitude
Active Publication Date: 2019-06-28
LAIWU IRON & STEEL GRP
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Problems solved by technology
This method requires dismantling and dismantling of the stacker-reclaimer frame, cantilever and other components with a total weight of nearly 200t. At the same time, there are the following problems: 1. According to this construction method, the replacement of the slewing bearing requires a construction period of about 15 days, which adversely affects production
2. According to this construction method, it is necessary to use a 130t truck crane to participate in the removal and installation of stacker reclaimer frame, cantilever and other components, and the large truck crane operation requires a large area of open space, so the work site is also limited
After comprehensive consideration of the above factors, it is determined that the construction of this scheme is difficult, costly, and has a long construction period, which cannot meet the needs of maintenance
Method used
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Embodiment 1
[0033] Embodiment 1, a specific method for replacing the rotary cross bearing of a stacker-reclaimer, includes the following steps:
[0034] 1) Positioning of the stacker-reclaimer: Turn the cantilever to a 90° angle with the ground belt, lower the cantilever and place it on the pre-stacked material pile, and place appropriate sleepers between the material pile and the cantilever to make the cantilever be erected by the material pile , at this time, the counterweight steel wire rope should be slightly slack, so that the center of gravity on the slewing platform is closer to the geometric center, and the unbalanced force during jacking is reduced. Oil cylinder inlet and outlet oil pipe joints, so that the cantilever is in a free state, and the slewing cross bearing housing shield is removed. At the same time, the direction of the extension rail is fixed to the ground foundation with diameter ￠24 steel wire ropes on both sides of the door beam height, so as to ensure the stacker ...
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The invention discloses a method for replacing a stacker-reclaimer rotation crossed bearing. The method includes the following steps that (1) stacker-reclaimer positioning is conducted; (2) jacks and jacking platforms are manufactured and installed; (3) positioning shafts and positioning sleeves are installed; (4) the part above the rotation crossed bearing is jacked up; (5) the old rotation crossed bearing is removed; and (6) a new rotation crossed bearing is installed. The method for replacing the stacker-reclaimer rotation crossed bearing is high in efficiency, short in period, low in cost and high in safety coefficient.
Description
technical field [0001] The invention belongs to the technical field of equipment maintenance, and in particular relates to a method for replacing a rotary cross bearing of a stacker-reclaimer. Background technique [0002] The stacker reclaimer is one of the largest complete sets of bulk material handling equipment at present, and is widely used in mines, sintering plants, thermal power plants, coking plants and other fields. The traditional construction method for replacing the rotary cross bearing of the stacker reclaimer is to disassemble and remove the rotary body of the stacker reclaimer (that is, the part above the rotary cross bearing) from top to bottom until the rotary cross bearing is removed and replaced. This method requires dismantling and dismantling of the stacker-reclaimer frame, cantilever and other parts with a total weight of nearly 200t, and there are the following problems: 1. According to this construction method, the replacement of the slewing bearing ...
Claims
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IPC IPC(8): B23P19/04
CPCB23P19/04
Inventor 尹彦周何剑飞单士宾
Owner LAIWU IRON & STEEL GRP