A guide vane crank arm removal device
A technology of guide vane arm and disassembly device, which is applied in the direction of hand-held tools and manufacturing tools, can solve the problems of long disassembly cycle, time-consuming and laborious disassembly of guide vane arm, and safety risk of damage to mechanical components of guide vane arm, and achieves Guaranteed disassembly accuracy and safety performance, small additional force, and reduced damage
Active Publication Date: 2017-09-29
STATE GRID CORP OF CHINA +2
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- Description
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- Application Information
AI Technical Summary
Problems solved by technology
During the overhaul of the hydropower unit, when disassembling the guide vane arm of the pump turbine, it often takes time and effort to dismantle the guide vane arm, and there is a safety risk of damage to the mechanical components of the guide vane arm
The existing guide vane crank arm disassembly method is often manually disassembled by maintenance personnel using hydraulic tools based on experience. Manual disassembly requires high human experience and technical requirements, and the lifting accuracy cannot be accurately positioned, and the disassembly cycle is long.
Therefore, in order to solve the deficiencies of the prior art, it is urgent to provide an easy-to-operate, safe and reliable new guide vane arm removal device in this field to solve the problem of difficult disassembly of the guide vane arm.
Method used
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Embodiment Construction
[0013] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0014] The overall structure of the guide vane crank arm removal device provided by the present invention is as follows: figure 1 and figure 2 As shown, it includes an actuator, a coupling mechanism and a support mechanism. The support mechanism is composed of an upper support ring 1, a lower support ring 3 and a support arm 2, wherein the diameter of the upper support ring 1 is smaller than the lower support ring 3, and the upper support ring 1 has an inner diameter of 80mm, an outer diameter of 150mm, and a height of 50mm. The inner diameter of the lower support ring 3 is 280mm, the outer diameter is 405mm, and the height is 50mm; the support arms 2 are 7-shaped and there are six support arms, the height of which is 450mm, the width is 50mm, and the thickness is 50mm. The two ends of the support arm 2 are fixedly connected to the upper support ring 1 and the low...
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The invention provides a guide vane arm dismounting device. The guide vane arm dismounting device comprises an executing mechanism, a linking mechanism and a supporting mechanism; the supporting mechanism is composed of an upper supporting ring, a lower supporting ring and supporting arms, wherein the diameter of the upper supporting ring is less than that of the lower supporting ring; there are six supporting arms arranged in the shape of 7; both ends of the supporting arms are respectively and fixedly connected with the upper supporting ring and the lower supporting ring, the upper supporting ring is fixed with the lower supporting ring mutually, and the upper supporting ring is perpendicular to the lower supporting ring; thread holes are evenly distributed on the lower supporting ring, and the linking mechanism is a screw; the screw is installed in the thread holes on the lower supporting ring and tightly fixed with a guide vane arm; the executing mechanism is a pneumatic hydraulic servomotor, and the servomotor is adapted to the upper supporting ring through the lower supporting ring. The guide vane arm dismounting device is simple in structure, convenient to use, high in precision, safe and reliable in use.
Description
technical field [0001] The patent of the present invention relates to a new type of guide vane arm dismantling device, in particular to a guide vane arm dismantling device suitable for a pumped storage unit with a capacity of 300MW. Background technique [0002] The guide vane crank arm removal device is mainly used in the field of hydropower. During the overhaul of the hydropower station unit, when the guide vane arm of the pump turbine is disassembled, it often takes time and effort to dismantle the guide vane arm, and there is a safety risk of damage to the mechanical components of the guide vane arm. The existing guide vane crank arm disassembly method is often manually disassembled by maintenance personnel using hydraulic tools based on experience. Manual disassembly requires high human experience and technical requirements, and the lifting accuracy cannot be accurately positioned, and the disassembly cycle is long. Therefore, in order to solve the deficiencies of the ...
Claims
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IPC IPC(8): B25B27/00
CPCB25B27/00
Inventor 王焕河张成华陈佳张才军
Owner STATE GRID CORP OF CHINA