Grinding device of upper guide bearing bushing and lower guide bearing bushing of hydroelectric unit generator
A technology of grinding device and guide bearing bush, which is applied in grinding device, grinding machine tool, metal processing equipment, etc., can solve the problems of increased size and weight of grinding device, inconvenient use by operators, large shape of grinding device, etc. The effect of short cycle, shortened installation cycle and high production efficiency
Active Publication Date: 2013-03-20
TIANJIN TIRNFR HEAVY HYDROELECTRIC FRCILITY CO LTD
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Problems solved by technology
This design structure has the following disadvantages: (1) For large and medium-sized hydroelectric generators, with the increase of unit capacity, the diameter of the upper and lower guide bearing pads is also increasing, and the size and weight of the grinding device are also increasing. The resulting deformation also increases
(2) Due to the large shape of the grinding device, it is very inconvenient for the operator to use, which increases the hidden danger of accidents
(3) High manufacturing cost
Method used
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Embodiment 1
[0025] A grinding device for the upper and lower guide bearing bushes of a hydroelectric unit generator, which is fan-shaped and semi-box-shaped, and has a 50° arc steel plate 1, and two webs 2 are welded on the inner side of the arc steel plate 1, and there are supports between the webs 2 steel pipe 3. There are wedge-shaped chamfers at both ends of the arc plate 1 . The arc steel plate 1 is a 35# steel plate, and the inner side is welded with two width plates 2 and then overall annealed. After annealing, wedge-shaped chamfering at both ends, turning and honing are performed. Circular arc steel plate 1 adopts 35# steel plate, which is suitable for honing processing and meets the requirement of roughness Ra0.4 on the outer surface of the arc.
[0026] The specific structure and process of this embodiment:
[0027] The grinding device for the upper and lower guide bearing pads of the generator of the hydroelectric unit has a fan-shaped structure, and the device adopts a half-...
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The invention relates to a grinding device of an upper guide bearing bushing and a lower guide bearing bushing of a hydroelectric unit generator, belonging to the technical field of hydraulic generators. The grinding device of the upper guide bearing bushing and the lower guide bearing bushing of the hydroelectric unit generator is characterized in that the grinding device is in a fan-shaped and semi-box-type structure and is provided with a circular steel plate with the radian of 40-60 degrees, and wedge-shaped chamfers are formed at both ends of the circular plate which is provided with a former at the inner side. The invention has the advantages of simple structure, smaller size, light weight, cost saving, good safety, short mounting period, high production efficiency, high grinding quality of the guide bearing bushing, and the like.
Description
technical field [0001] The invention belongs to the technical field of hydroelectric generators, and in particular relates to a grinding device for upper and lower guide bearing bushes of hydroelectric unit generators. Background technique [0002] At present, with the continuous improvement of the unit capacity of hydro-generators, the diameters of the upper and lower guide bearing pads are also increasing. For example, the SF96-42 / 10000 generator set has a lower guide pad of φ2620mm. Due to the tight installation period of the unit, it is often The guide pad is scraped and grinded in the manufacturing plant, and the related shaft is usually sent to the construction site in advance, which requires the manufacture of a grinding device with the same size as the shaft diameter to perform the grinding and scraping operation of the guide pad. [0003] The outer circle of the grinding device requires high roughness, which can only be achieved by honing after turning. The traditi...
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IPC IPC(8): B24B37/00
Inventor 孙江赵作勤李卫红
Owner TIANJIN TIRNFR HEAVY HYDROELECTRIC FRCILITY CO LTD