Diffuser jig used for abrasive particle flow machining of diffuser of turboshaft engine
A turboshaft engine and diffuser technology, which is applied to machine tools, manufacturing tools, metal processing equipment and other directions suitable for grinding workpiece edges, can solve thin-wall grinding at the inlet of the flow channel, and the surface profile of the diffuser. and surface roughness cannot meet product requirements, uneven removal of runner allowance, etc., to achieve the effect of satisfying contour and surface roughness
Active Publication Date: 2016-02-24
CHINA HANGFA SOUTH IND CO LTD
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Problems solved by technology
[0004] The invention provides a diffuser fixture used for processing the abrasive particle flow of a turboshaft engine diffuser, in order to solve the existing flow channel margin in the processing tool for the abrasive particle flow channel of the fully open diffuser. The removal is uneven, the thin-walled R at the inlet of the flow channel is excessively ground, etc., and the surface profile and surface roughness of the diffuser cannot meet the technical problems of the product requirements
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[0026] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered below.
[0027] figure 1 It is one of the structural schematic diagrams of the diffuser fixture used for the abrasive flow processing of the turboshaft engine diffuser according to the preferred embodiment of the present invention; figure 2 It is the second structural schematic diagram of the diffuser fixture used for the abrasive flow processing of the turboshaft engine diffuser according to the preferred embodiment of the present invention; image 3 It is a schematic diagram of the structure of the middle deflector block in the preferred embodiment of the present invention; Figure 4 Yes image 3 Schematic diagram of the cross-sectional structure; Figure 5 It is a schematic structural diagram of an external deflector block in a preferred embodiment of the present in...
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The invention discloses a diffuser jig used for abrasive particle flow machining of a diffuser of a turboshaft engine. The diffuser jig comprises a bottom board, an upper cover board and a connection cylinder, wherein an abrasive particle flow machining cavity is defined by the bottom board, the upper cover board and the connection cylinder and used for containing the diffuser to be machined and carrying out abrasive particle flow machining on diffuser runners formed between adjacent diffuser blades on the diffuser to be machined; the abrasive particle flow machining cavity is internally provided with a middle diversion block used for diversion from the middle of the diffuser to be machined to a middle rubber inlet of the diffuser to be machined and an outer diversion block used for diversion from the periphery of the diffuser to be machined to an outer runner outlet of the diffuser to be machined; the outer diversion block, the diffuser runners and the middle diversion block are arranged in a one-to-one correspondence mode; the middle diversion block and the outer diversion block form a bidirectional diversion mechanism of the diffuser runners; the diversion end of the middle diversion block is matched with the middle runner inlet of the diffuser to be machined; the diversion end of the outer diversion block is matched with the outer runner outlet.
Description
technical field [0001] The invention relates to the technical field of machining equipment for a turboshaft engine, in particular to a diffuser fixture used for abrasive particle flow machining of a turboshaft engine diffuser. Background technique [0002] Compared with the vaneless diffuser, the vane diffuser can achieve higher diffusion capacity under the condition of smaller size, which makes it possible to reduce the length of the diffuser flow path and the outlet diameter. In addition, the vane diffuser can control the flow angle of the airflow at the outlet of the diffuser, which is very important for the airflow organization of the combustion chamber, so the vane diffuser is widely used in micro turbine engines and centrifugal compressors. widely used. [0003] The diffuser of the turboshaft engine is also a vane diffuser, and the abrasive flow processing of its flow channel has always been a major problem in the processing of aero-engine parts. The flow path of the...
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CPCB24B31/12
Inventor 胡冬秀贺冶周红梅张菊绒杨新兰
Owner CHINA HANGFA SOUTH IND CO LTD