Large-overhanging narrow type hole drilling and reaming power device and large numerical control sleeper
A power device and overhang technology, which is applied in the field of steam turbine manufacturing, can solve problems such as difficult pin hole processing, and achieve the effect of high rotation accuracy and simple device structure
Inactive Publication Date: 2016-11-02
CHINA CHANGJIANG ENERGY CORP GROUP
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Problems solved by technology
[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a large overhang narrow drilling and reaming power device and a large numerically
Method used
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[0049] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0050] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the pointed device or element must have a specific orientation or a ...
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Abstract
The invention relates to the technical field of steam turbine manufacturing, in particular to a large-overhanging narrow type hole drilling and reaming power device and a large numerical control sleeper. The large-overhanging narrow type hole drilling and reaming power device comprises a large-overhanging narrow tool plate, a transmission assembly, a tool assembly and a driving mechanism. One end of the large-overhanging narrow tool plate is connected with the driving mechanism, and the other end of the large-overhanging narrow tool plate is provided with the tool assembly, wherein the driving mechanism is connected with the tool assembly through the transmission assembly. The large numerical control sleeper comprises the large-overhanging narrow type hole drilling and reaming power device, and butt joint is achieved through a corresponding connector. The large-overhanging narrow type hole drilling and reaming power device is fixedly installed on the large numerical control sleeper, and assembly is conducted through the corresponding connector. The device is simple in structure, the revolving precision of a tool is high, the device is suitable for drilling and reaming blade pin holes for long blades at a narrow crotch position of a steam turbine rotor, and the requirement for drilling and reaming machining of holes with the diameter phi ranging from 3 mm to 15 mm at the position with the largest overhanging of 580 mm and the smallest crotch of 60 mm after rotor assembly can be met.
Description
Technical field [0001] The invention relates to the technical field of steam turbine manufacturing, in particular to a large-overhang narrow-type drilling and reaming power device and a large-scale numerically controlled sleeping car. Background technique [0002] A steam turbine is a rotary power machine that converts the energy of steam into mechanical work. It is also called a steam turbine. It is mainly divided into industrial drive steam turbines and power generation steam turbines. A steam turbine is composed of a rotating part and a stationary part. The rotor includes the main shaft, impeller, blades and couplings, etc.; the stator includes the steam inlet part, cylinder, diaphragm, stationary blade cascade, steam seal and bearing. Under normal circumstances, the working environment of industrial steam turbine rotors is relatively harsh, with large thermal stress changes and high operating temperatures, which not only easily cause low-cycle fatigue damage, but also cause h...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B23P23/02
CPCB23P23/02
Inventor 黄庆易武鹏付小忠孙波刘刚李向辉杨辉
Owner CHINA CHANGJIANG ENERGY CORP GROUP