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1. 发明专利

JPH11117680A SHIELD MACHINE 失效
公开(公告)号：JPH11117680A
公开(公告)日：1999-04-27
申请号：JP28370497
申请日：1997-10-16
申请人： KAWASAKI HEAVY IND LTD
发明人： YOSHINO OSAMU , SAITO TADAFUMI , ISOBE SUNAO
IPC分类号： E21D9/087 , E21D9/08
摘要： PROBLEM TO BE SOLVED: To lessen labor required for assembling and disassembling by reducing the length and weight of a center shaft and simplifying the structure of a driving part by supporting the center shaft for driving a cutter disc by a toothed composite cylindrical bearing, and driving the tooth part of a rotary member of the toothed composite cylindrical bearing by a driver. SOLUTION: A cutter disc 2 provided on the front of a shield main body 1 is supported by a boss part 3a formed on the front of a center support type center shaft 3, and the center shaft 3 is supported on a casing 5 fixed to a partition wall 4 of a shield main body 1 through a toothed composite cylindrical bearing G. The toothed composite cylindrical bearing G is so constructed that a projecting part is formed on the inner periphery of a rotary member having a toothed part on the outer periphery thereof, and the rotary member is rotatably supported by plural rollers provided between the projecting part and a recessed part of a fixing member. A tooth part 6a formed on the outer peripheral side of the toothed composite cylindrical bearing G is driven by a pinion mounted on an output shaft of a driver 13 disposed outside the toothed composite cylindrical bearing G.

2. 发明专利

JPH11107683A CUTTER ATTACHING CONSTRUCTION AND TUNNEL EXCAVATOR EQUIPPED THEREWITH 失效
公开(公告)号：JPH11107683A
公开(公告)日：1999-04-20
申请号：JP27408797
申请日：1997-10-07
申请人： KAWASAKI HEAVY IND LTD
发明人： FUJIOKA KAZUO , SAITO TADAFUMI
IPC分类号： E21D9/087 , E21D9/08
摘要： PROBLEM TO BE SOLVED: To secure the strength of a portion supporting a large excavation reaction acting on a roller cutter during ground excavation for hard rock in the operation of a tunnel excavator. SOLUTION: A cutter holder 4 adapted for permitting the replacement of a roller cutter 5 from the inner side of the machine bears a large excavation reaction received from the roller cutter 5 by a holding portion 7 of the cutter holder 4 having a wide pressure receiving area through a socket 8 supporting a rotary shaft 5b of a roller cutter 5 thereby assuring efficient excavation in a stable state even though a large excavation reaction is received by the excavation of hard rock. Also, the roller cutter 5 and cutter bits can be mutually replaced from the inner side of the machine according to a change in geology.

3. 发明专利

JPH09303089A GATE DEVICE FOR MUD CARRYING COVEYOR AND MUD PRESSURE TYPE SHIELD EXCAVATOR HAVING IT 失效
公开(公告)号：JPH09303089A
公开(公告)日：1997-11-25
申请号：JP12017496
申请日：1996-05-15
申请人： KAWASAKI HEAVY IND LTD
发明人： SARADA SUSUMU , SAITO TADAFUMI
IPC分类号： E21D9/12
摘要： PROBLEM TO BE SOLVED: To prevent earth and sand from being adhered to the guide groove of a gate plate to interrupt the movement of the gate plate by providing an earth and sand falling opening on a conveyor gate device. SOLUTION: In a gate device G for opening and closing an opening part 2 provided on one end lower surface of a screw conveyor 1, a gate frame 5 is provided around the opening part 2, and the terminal end part of a guide groove 7 within the gate frame 5 is cut to form an earth and sand falling opening between the guide groove 7 and the gate frame 5. The tip part 6a of the gate plate is made into a form easy to scrape earth and sand, whereby the gate device G advances while the earth and sand adhered in the guide groove 7 is scraped when the opening part 2 is closed, drops the earth and sand in the rear end part, and surely moves the gate plate 6 to the stroke end to perfectly block the opening part 2.

4. 发明专利

JPH1068292A CUTTER FITTING MECHANISM AND CUTTER HOLDER FOR TUNNEL EXCAVATOR 失效
公开(公告)号：JPH1068292A
公开(公告)日：1998-03-10
申请号：JP22516196
申请日：1996-08-27
申请人： KAWASAKI HEAVY IND LTD
发明人： SARADA SUSUMU , SAITO TADAFUMI
IPC分类号： E21D9/087 , E21D9/08
摘要： PROBLEM TO BE SOLVED: To efficiently allow an excavation both in hard ground and soft ground by making a roller cutter and a cutter bit fitted to a cutter disk mutually exchangeable from the inside on a tunnel excavator. SOLUTION: A cutter holder main body 4a is fixed to the cutter support frame 3 of a cutter disk. A rotary saddle 8 and a spacer 8b are fitted to angular shaft sections protruded on both sides of a roller cutter, the roller cutter is rotatably fitted with the engaging recess of the cutter holder main body 4a, and it is fixed by bolts 9a via a bearing cap 9. When the roller cutter is to be removed, the bolts 9a are loosened, a rotary saddle 8 is rotated by 180', and the roller cutter is extracted to the inside. A cutter bit 11 is inserted into the cutter holder main body 4a in combination with two support members 12, the support members 12 are separated to be locked on stoppers 6 of the cutter support frame 3, and their upper end edges are locked on the lock pieces 4b of the cutter holder main body 4a. The roller cutter and the cutter bit 11 can be exchanged from the inside in response to the excavated ground.

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