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1. 发明专利

JPH06272670A MANUFACTURE OF ROTARY AIR COMPRESSION DEVICE AND MANUFACTURE ASSIST DEVICE THEREFOR 失效
公开(公告)号：JPH06272670A
公开(公告)日：1994-09-27
申请号：JP5901893
申请日：1993-03-18
申请人： HITACHI LTD
发明人： TAMAOKI KENJI , MATSUOKA YASUHIRO , UNO MASATO , WATANABE KAZUO , SEIYU HITOSHI , ABE YOSHIO
IPC分类号： F04B51/00
摘要： PURPOSE:To reduce the number of defective products without much labor, regarding an air compression device manufactured through a plurality of processes. CONSTITUTION:Loaded torque generated via the turn of an eccentric camshaft 23 is measured at an alignment inspection process 6b, and sent to a line control computer 10 as inspection data 11a. Also, the judgement criterion memory section of the computer 10 stores data regarding a correlation between a loaded torque waveform and a defect cause, and a relationship between the defect cause and a process to generate the cause and the content of an improvement at the process. Also, a defect cause determination section 103 defines the defect cause on the basis of the correlation stored in the judgement criterion memory section. An improvement content determination section 104 defines a process to generate the defect cause, and the content of the improvement of the process, on the basis of the relationship saved in the judgment criterion memory section and the defined defect cause.

2. 发明专利

JPH0742677A COMPRESSOR INSTALLED STATE MEASURING DEVICE AND METHOD THEREOF 失效
公开(公告)号：JPH0742677A
公开(公告)日：1995-02-10
申请号：JP9977093
申请日：1993-04-26
申请人： HITACHI LTD
发明人： MATSUOKA YASUHIRO , TAMAOKI KENJI , UNO MASATO , WATANABE KAZUO , SEIYU HITOSHI , ABE YOSHIO
IPC分类号： F04B49/00 , F04B51/00
摘要： PURPOSE:To make significant parameters of installed state obtained from the load torque of a compressor. CONSTITUTION:A torque measuring device is provided with a torque sensor 50 for detecting load torque (To) at the time of rotating the rotary shaft of a compressor, and a temperature sensor 40 for detecting the temperature of the compressor. An arithmetic unit 200 is provided with a torque separative sampling part 210 for separatively sampling the detected load torque (To) as load torque Tb, Tc, Tz by torque generating factors, a temperature compensating part 220 for making the separatively sampled load torque Tb, Tc, Tz into the load torque corresponding to the predetermined reference temperature, and a parameter converting part 230 for converting the separatively sampled load torque into parameter B, S, Z indicating the assembled state of the compressor.

3. 发明专利

JPS624508A MACHINING METHOD FOR VANE GROOVE OF COMPRESSOR 失效
公开(公告)号：JPS624508A
公开(公告)日：1987-01-10
申请号：JP14036985
申请日：1985-06-28
申请人： HITACHI LTD , NACHI FUJIKOSHI CORP
发明人： ABE NOBUO , OBA MITSUO , SEIYU HITOSHI , YAMANAKA TOSHIO , MASUDA MASAMI , TAKASU SHUHEI , SAKAFUJI HIDEO , USAMI TAKASHI , KURODA TOSHISHIGE
IPC分类号： F04C18/356 , B23D1/24 , B23D1/26 , B23D37/10 , F04C29/00
摘要： PURPOSE:To improve dimensional accuracy, shape accuracy and surface roughness for machining a cylinder vane groove, by performing its broaching in a roughing process and additionally performing ultrasonic shaving for a fine allowance. CONSTITUTION:A superprecision machine 10 is constituted of a broaching unit 11, accurate position detection correcting unit 12, ultrasonic shaving unit 13 and a post-measuring unit 14. The unit 12 is arranged as the next process to the broaching unit 11 in the same station to the unit 13. The machining method, broaching a vane groove in the broaching unit 11 thereafter correcting a position by the unit 12 next performing ultrasonic shaving in the unit 13 while measurement in the unit 14, performs high accurate machining of the groove.

4. 发明专利

JPS61258987A ROTARY COMPRESSOR 失效
公开(公告)号：JPS61258987A
公开(公告)日：1986-11-17
申请号：JP9771585
申请日：1985-05-10
申请人： HITACHI LTD
发明人： ABE NOBUO , OBA MITSUO , SEIYU HITOSHI , YAMANAKA TOSHIO , MASUDA MASAMI , TAKASU SHUHEI
IPC分类号： F04C18/356 , F01C21/08
摘要： PURPOSE:To improve surface roughness, shape and dimensional accuracies, wear-proof characteristic, and compression characteristic, reduce noise, and get smoother sliding characteristic between a vane groove and a vane by applying supersonic shaving machining on the vane groove. CONSTITUTION:By using a supersonic shaving machine 16, namely giving supersonic vibration of appropriate frequency and amplitude through a supersonic vibration unit 16c to a shaving cutter 16a attached to a holder 16b and by moving the vibration unit 16c, the holder 16b and the shaving cutter 16a by means of a press device such as a hydraulic unit from the top downward in the direction of the arrow, both of the side walls of the vane groove 1c of a cylinder 1 facing in parallel each other are simultaneously machined. With this, shape accuracy of the vane groove 1c is improved, sliding characteristic of the vane 2 is substantially improved and wear-proof characteristics of the both components are improved. And because of stabilized dimensional accuracy and parallelism, gap between the vane groove 1c and the vane 2 can be made smaller, which reduces gas leakage amount, improves volumetric efficiency and reduces rattling of the vane 2.

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