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1. 发明专利

JPH02152736A ASSEMBLY DEVICE FOR LARGE DIAMETER NUT 失效
公开(公告)号：JPH02152736A
公开(公告)日：1990-06-12
申请号：JP30051988
申请日：1988-11-30
申请人： HITACHI LTD
发明人： MIZUNIWA SEI , ISHII TADAYOSHI , SAGAWA ISAO
IPC分类号： B23P19/06
摘要： PURPOSE:To enable the screwing of a large diameter nut movably and yet manually by fitting a bearing to the nut receiving base supporting the nut, lifting the nut receiving base on which this nut is placed by a free balancer and fitting a centering guide to the nut. CONSTITUTION:A free bearing 2 is fitted in a relative shape to the nut receiving base 1 having a V type notching shape, a suspender 3 for suspending the nut receiving base 1 is provided and after setting a grooved nut 10 to the nut receiv ing base 1, the base 1 is pulled up by operating a free balancer 4. Then, a center guide 5 is fitted into a nut groove 11, a core bar 8 is inserted into the center hole 16 of a bolt 12 and the nut 10 is composed as to screw in by pushing in. Thus, the friction of a screw part becomes min. because of the nut load being not applied on the bolt, also the contact resistance with the base 1 becomes min. by the free bearing 2, so the heavy nut of large diameter can easily be screwed into the bolt.

2. 发明专利

JPS6148607B2 失效
公开(公告)号：JPS6148607B2
公开(公告)日：1986-10-24
申请号：JP20710181
申请日：1981-12-23
申请人： HITACHI LTD
发明人： MIZOI TAKAO , TAN TOSHIMI , MIZUNIWA SEI , ISHIDA AKIRA
IPC分类号： F01D5/22

3. 发明专利

JPS6114404A Installing method of turbine 失效
标题翻译：涡轮安装方法
公开(公告)号：JPS6114404A
公开(公告)日：1986-01-22
申请号：JP13318384
申请日：1984-06-29
申请人： Hitachi Ltd
发明人： MIZUNIWA SEI , YOKOYAMA HIROSHI
IPC分类号： F01D25/28
CPC分类号： F01D25/28
摘要： PURPOSE:To raise a degree of accuracy in centering adjustment, by lowering the push-up force of a condenser supporting spring in time of turbine installation on a spring frame, and converting this force into an increment portion of water load on a condenser in time of operation, thereby performing a centering job. CONSTITUTION:A deck 6 is mounted on a pillar 7 via a spring 8, while turbines 1 and 2 and a generator 3 are installed on this deck. A condenser 4 is supported by a spring 9. These turbines are instaled in the following processes that first, frame pillars are set up, springs are set and locked, and concrete placing of the deck 6 takes place, then the turbine generator is installed there. Next, condenser water load equivalent to that in an operating load is imposed on each frame with the spring 9 adjusted, and afterward, the frame spring 8 is released and adjusted properly, thus coupling centering adjustment takes place.
摘要翻译：目的：通过降低涡轮机安装在弹簧架上的冷凝器支撑弹簧的上推力，提高中心调整精度，并将该力在时间上转换为冷凝器上的水负荷增量部分的操作，从而执行定心作业。构成：甲板6通过弹簧8安装在支柱7上，而涡轮机1和2以及发电机3安装在该甲板上。冷凝器4由弹簧9支撑。这些涡轮机安装在以下过程中，首先框架柱被安装，弹簧被固定和锁定，并且进行甲板6的混凝土浇筑，然后将涡轮发电机安装在那里。接下来，调整与弹簧9相对应的运转负荷中的冷凝器水负荷，之后将框架弹簧8释放并适当调整，由此发生耦合对中调整。

4. 发明专利

JPS63134106A COMB TOOTH CUTTING MACHINE FOR PACKING 失效
公开(公告)号：JPS63134106A
公开(公告)日：1988-06-06
申请号：JP27659086
申请日：1986-11-21
申请人： HITACHI LTD
发明人： MIZUNIWA SEI , HANAWA KUNIMITSU
IPC分类号： B23C3/30
摘要： PURPOSE:To promote the improvement of accuracy and the reduction of labor hours, by fixing a packing to a base, mounting an arm, which enables its supporting point to be moved and length to be adjusted, to a point, which agrees with the circular arc center of the packing, actuating said arm to perform a pendulum motion and cutting the packing by a cutting tool in the point end of said arm. CONSTITUTION:A circular arc center O of a fixed packing ring 15 is placed to agree with a supporting point X of an arm 13, which has a cutting jig 16, being confirmed by reading a dial indicator 17. Next, the rotating arm 13 adjusts its length M by turning an adjusting handle 14 so that the length M obtains a sum of required depth of cut S and a circular arc radius length L of the packing ring 15. And the required depth of cut is permitted to be obtained accurately in low labor hours by actuating the arm 13 to perform pendulum motion.

5. 发明专利

JPS58110801A CONNECTING DEVICE FOR MOVING BLADE OF TURBINE 失效
公开(公告)号：JPS58110801A
公开(公告)日：1983-07-01
申请号：JP20710181
申请日：1981-12-23
申请人： HITACHI LTD
发明人： MIZOI TAKAO , TAN TOSHIMI , MIZUNIWA SEI , ISHIDA AKIRA
IPC分类号： F01D5/22
摘要： PURPOSE:To improve the durablity by applying the surface hardening treatment on a contact surface of a connecting member being contacted with the other member, in a device in which adjacent turbine moving blades are mutually con- nected via a pair of connecting member which cooperate with canopy top members provided on each moving blade. CONSTITUTION:The canopy top members 6a, 7a are provided on the surfaces of each opposite sides of the turbine moving blades 1, 2, and the moving blade connecting members 8, 9 are provided between the top ends of the each moving blades 1, 2. The pins 10, 11 which are formed on the upper surface of each connecting member 8, 9 are fitted into and fastened to the through holes 12, 13 of the each canopy top members 6a, 7b. Said connecting members 8, 9 ristrict untwining by contacting, at contacting surfaces 14-17, with the blade surfaces of said moving blades 1, 2. At this time, such surface hardening treatments 21- 28 as welding ejection or padding with hard alloy, shot-peening, etc. are performed on the contacting surfaces 14-20 of the connecting members 8, 9. Thereby, the fretting corrosion of said surfaces 14-20 is prevented.

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