Abstract

A water jet strengthening and polishing integrated system for blades of a blisk includes a vibration polishing unit and a water jet strengthening unit. The vibration polishing unit includes a vibration polishing bath, the vibration polishing bath is internally provided with a clamp for clamping the blisk, and vibration motors for driving the vibration polishing bath to vibrate are installed on the vibration polishing bath. Top ends of support springs are fixedly connected with the vibration polishing bath, and bottom ends of the support springs are fixedly connected with a workbench. The water jet strengthening unit includes a water jet strengthening device for carrying out water jet strengthening on the blades of the blisk and a driving mechanism for clamping the water jet strengthening device and capable of driving the water jet strengthening device to move in any direction in space.

IPC Classes  ?

• B24B 1/04 - Processes of grinding or polishingUse of auxiliary equipment in connection with such processes subjecting the grinding or polishing tools, the abrading or polishing medium or work to vibration, e.g. grinding with ultrasonic frequency
• B24B 19/14 - Single purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
• B24B 31/00 - Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work or the abrasive material is looseAccessories therefor
• B24B 31/06 - Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work or the abrasive material is looseAccessories therefor involving oscillating or vibrating containers
• B24B 31/12 - AccessoriesProtective equipment or safety devicesInstallations for exhaustion of dust or for sound absorption specially adapted for machines covered by group
• B24C 3/22 - Apparatus using nozzles
• B24C 3/28 - Apparatus using nozzles
• B24C 5/00 - Devices or accessories for generating abrasive blasts

Abstract

A water jet strengthening and polishing integrated system for blades of a bladed disk, comprising a vibration polishing unit and a water jet strengthening unit. The vibration polishing unit comprises a vibration polishing tank (3), a clamp (6) used for clamping a bladed disk being provided in the vibration polishing tank (3), and vibration motors (32) used for driving the vibration polishing tank (3) to vibrate being installed on the vibration polishing tank (3). The top ends of support springs (31) are fixedly connected to the vibration polishing tank (3), and the bottom ends of the support springs (31) are fixedly connected to a workbench (21). The water jet strengthening unit comprises a water jet strengthening device (5) used for carrying out water jet strengthening on blades of the bladed disk (7) and a driving mechanism used for clamping the water jet strengthening device (5) and driving same to move in any direction of space. The present invention further comprises a method, comprising: filling the vibration polishing tank (3) with an abrasive liquid; the vibration motors (32) driving the vibration polishing tank (3) to vibrate so as to polish the blades, and simultaneously, the driving mechanism driving the water jet strengthening device (5) to move so as to perform water jet strengthening successively on all the blades of the bladed disk (7). The present invention effectively improves the surface strengthening quality and efficiency for the blades of the bladed disk (7).

IPC Classes  ?

• B24B 31/06 - Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work or the abrasive material is looseAccessories therefor involving oscillating or vibrating containers
• B24C 1/04 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
• B24C 1/08 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods for polishing surfaces, e.g. by making use of liquid-borne abrasives
• B24C 5/04 - Nozzles therefor
• C21D 7/06 - Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like

Abstract

A jet flow strengthening apparatus and method. The jet flow strengthening apparatus comprises a medium storage device (1), a mixing cavity (3), a nozzle (4), a lifting platform (7) and a control apparatus (8). A plurality of separated storage cavities (11) are arranged in the medium storage device (1), and graphene is disposed in at least one storage cavity (11). A first stirrer (12) is arranged in each of the storage cavities (11), and the storage cavities (11) are respectively in communication with the mixing cavity (3) via a jet flow channel (2). The mixing cavity (3) is respectively connected to the medium storage device (1) and the nozzle (4), and is internally provided with a second stirrer (31). The nozzle (4) has a hollow inner cavity and is in communication with the mixing cavity (3), and the nozzle (4) is located above the lifting platform (7). The control apparatus (8) respectively controls the operations of the first stirrer (12), the second stirrer (31) and the lifting platform (7). By means of the jet flow strengthening method, the strengthening of mixed jet flows of any liquid and graphene can be achieved.

IPC Classes  ?

• C21D 7/06 - Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
• C22F 1/00 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
• C22F 1/057 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent

Abstract

Provided is an engine of an aircraft. The engine comprises an outer casing (1), an inner casing (2), a first rotating shaft (3), a first fan (4), a second fan (5), a first combustor (6) and a second combustor (7). An outer duct (100) is formed between the inner casing and the outer casing. The inner casing is internally provided with an inner duct (200). The inner casing comprises a first segment (21) and a second segment (22), wherein same are axially distributed. The first segment is located on the side of the second segment close to an outer air inlet end. The first rotating shaft is rotatably arranged inside the inner casing. The first fan comprises an inner turbine portion (41), a first connection portion (42) and an outer turbine portion (43). The inner turbine portion is connected to the first rotating shaft and is located inside the inner duct. A second connection portion (52) is connected to the inner turbine portion in a surrounding manner. The outer turbine portion is connected to the second connection portion and is located inside the outer duct. The second fan is connected to the first rotating shaft, and has an external diameter greater than that of the first segment. The first combustor is arranged between the second fan and the outer turbine portion. The second combustor is arranged between the second fan and the inner turbine portion. Further provided is an aircraft comprising the engine. The engine and the aircraft can improve the thrust of the engine, thereby facilitating a reduction in the length of the engine.

IPC Classes  ?

• F02K 3/065 - Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low-pressure outputs, for augmenting jet thrust, e.g. of double-flow type with front and aft fans
• F02C 3/14 - Gas-turbine plants characterised by the use of combustion products as the working fluid characterised by the arrangement of the combustion chamber in the plant
• F02C 3/06 - Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor the compressor comprising only axial stages