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91. 发明专利

JP2000110195A MUD-SOLIDIFYING DEVICE 失效
公开(公告)号：JP2000110195A
公开(公告)日：2000-04-18
申请号：JP28442898
申请日：1998-10-06
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： MORI YASUO , MORO TAKASHI
IPC分类号： E02F7/00 , E21D9/12
摘要： PROBLEM TO BE SOLVED: To provide a mud-solidifying device in which mud can be sufficiently ground and agitated and mixed together with a solidifying material even if the outer diameter of a rotary drum can not be made large. SOLUTION: Mud MD and a solidifying material SD fed in a rotary drum 10 rotating in a direction shown by the arrow mark RD are scraped up by scraping blades 7 projected on the inside wall of the rotary drum 10 and slidingly cascaded, and further broken by colliding with an agitating rod 20 rotating at a high speed in the direction shown by the arrow mark RS in the center of the rotary drum 10 and moreover, scraped up again by the scraping blades 7 after they have dropped down. In this way, these mud and material are sufficiently agitated and mixed by the repeated motion.

92. 发明专利

JPH11337334A OPTICAL DEFLECTION ANGLE MEASURING DEVICE 失效
公开(公告)号：JPH11337334A
公开(公告)日：1999-12-10
申请号：JP14154498
申请日：1998-05-22
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： SHIMOMURA YOSHIAKI , MITSUYANAGI NAOKI , MORO TAKASHI
IPC分类号： G01C15/00 , G01B11/26
摘要： PROBLEM TO BE SOLVED: To eliminate the influence of a sensor output which is generated due to factors other than the light of a light source and to make it possible to carry out an accurate measurement by changing the direction of light from each light source to be condensed so that it can be guided to each position-detection element and subtracting a setting value for output being generated without depending on the light of the light source from the detection value of each pixel. SOLUTION: An operation-processing device 10 is provided with an offset circuit 1, subtracts an offset setting value VOFF that is a setting value regarding output IN of a noise signal from an output value I of the detection signal of position detection elements 412-1 and 412-2, and corrects the output value I to a correct value being generated due to the light of light sources 41 and 42. A gravity position/deflection angle operation circuit 4 obtains an image-forming position on each light reception surface of the position detection elements 412-1 and 412-2 based on a correct output value I' that is obtained by the correction, and calculates the angle of deflection of the light axes of the light sources 41 and 42, thus accurately measuring the angle of deflection without being affected by sensor output being generated due to factors other than the light of the light sources 41 and 42 at the time when optically measuring the angle of deflection.

93. 发明专利

JPH11182176A PIPE JACKING MACHINE 失效
公开(公告)号：JPH11182176A
公开(公告)日：1999-07-06
申请号：JP35754997
申请日：1997-12-25
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： MORIYA HIDEKI , MORO TAKASHI
IPC分类号： E21D9/06 , E21D9/093
摘要： PROBLEM TO BE SOLVED: To provide a pipe jacking machine which is equipped with a direction correcting function nearly equal to that of a pipe jacking machine of middle fold type and in which equipment contained in the top guiding body involve no risk of interfering with the surrounding objects at the time of direction correction. SOLUTION: The natural ground is excavated by a cutter head 12 while a top guiding body is propelled, and at the same time, a viscosity giving liquid is injected into the excavated earth and sand to produce a muddy soil having plastic fluidity, and the muddy soil is sent backward and part thereof is taken into the top guiding body to be discharged onto the ground while the remainder is led to the periphery of a buried pipe attached to the tail of the top guiding body. The top guiding body comprises an inner pipe 1 having in front a cutter head 14 and fitted with a buried pipe in the backmost and front inner cylinder 2 and rear inner cylinder 3 having a spacing to the periphery of the inner pipe 1 and attached to the inner pipe 1 swingably in the diametric direction, and the front outer cylinder 2 is fitted swingably to the rear outer cylinder 3, and thereby the front outer cylinder 2 is swung interlocking with swings of the rear outer cylinder 3 when it 3 is swung by a jack 4, and thus it is possible to correct the jacking direction of the top guiding body.

94. 发明专利

JPH11153089A PRESSURE OIL FEEDING DEVICE FOR SMALL BORE PIPE PROPULSION MACHINERY 失效
公开(公告)号：JPH11153089A
公开(公告)日：1999-06-08
申请号：JP31952397
申请日：1997-11-20
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： MORO TAKASHI , ENDO NOBUAKI
IPC分类号： E21D9/06 , F04B49/00
摘要： PROBLEM TO BE SOLVED: To regulate a discharge flow rate from a hydraulic pump to a constant value through simple operation even when a change in a source frequency is produced. SOLUTION: When the source frequency of a three phase induction electric motor 102 is 50 hertz, by manually selecting a 50 hertz mode by a mode selecter 108, a drive signal for a target inclination angle 6a previously computed and set by a set part for 50 hertz is outputted to a driver 106 through operation of the operation part for 50 hertz of an external input apparatus 121. In a case of 60 hertz, by manually selecting a 60 hertz mode by the mode selecter 108, a drive signal for a target inclination angle 6b previously computed and set according to operation of the operation for 60 hertz of the external input apparatus 121 is outputted to a driver 106.

95. 发明专利

JPH11131976A PIPE-JACKING MACHINE 失效
公开(公告)号：JPH11131976A
公开(公告)日：1999-05-18
申请号：JP29860697
申请日：1997-10-30
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： MORO TAKASHI , MORIYA HIDEKI , ENDO NOBUAKI , SUZUKI KEIICHI
IPC分类号： E21D9/093 , E21D9/06
摘要： PROBLEM TO BE SOLVED: To prevent the increase of propulsion resistance while resolving the delay of actual operation at the time of direction correction operation generated in a pumping earth-removal type pipe-jacking machine. SOLUTION: The pumping earth-removal type pipe-jacking machine is constituted in such a manner that the pipe-jacking machine has a leader, to which a rotary excavating tool 2 having an excavation outside diameter larger than the outside diameter of a leader body 1 is installed, a viscosity-imparting material is injected to excavated materials and mud having plastic fluidity is generated and the mud is passed on the outer circumferential side of the leader body 1. A plurality of direction correction plates 11 being mounted on the leader body 1 in a rockable manner, pushing the rotary excavating tool 2 against a ground while taking reaction by the ground by rocking and capable of correcting the direction of the propulsion of a leader are set up at intervals so as to form mud passages 10a among the direction correction plates 11 and the outer circumference of the leader body 1 and arranged so as to be kept in the excavation region of the rotary excavating tool 2 while a plurality of hydraulic jacks 12 rocking the direction correction plates 11 respectively and capable of pushing the direction correction plates 11 against the ground are fitted to the leader body 1 at that time.

96. 发明专利

JPH11117667A PIPE PROPULSION MACHINE 失效
公开(公告)号：JPH11117667A
公开(公告)日：1999-04-27
申请号：JP27616297
申请日：1997-10-08
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： ENDO NOBUAKI , MORO TAKASHI
IPC分类号： E21D9/06 , E21D9/093
摘要： PROBLEM TO BE SOLVED: To provide versatility by eliminating the necessity of work for reregistering correction data used in the calibration of a detector in an excavator even if the combination of the excavator and a controller has been changed. SOLUTION: When the registration of correction data is designated with the registering switch 8 of a controller 2, a correction data computing device 7 samples the measurements θ1 , θ2 , as input by an input device 10, of a bending angle between the hulls of an excavator 1 at different positions and the values θS1 , θS2 detected by a bending angle detector 26 at the same position, then computes correction data α, β by which the detected values θS1 , θS2 are made to coincide with the measurements θ1 , θ2 , and causes the control device 3 of the excavator 1 to store the correction data α, β in its correction data storage part 3b. The detected value correcting part 3c of the control device 3 samples the value θS detected by the bending angle detector 26, corrects the detected value θS using the correction data α, β stored in the correction data storage part 3b, and outputs the detected value θ corrected to a position computing device 6.

97. 发明专利

JPH1181352A SEMI-CUT-AND-COVER PIPE BURYING METHOD AND DEVICE 失效
公开(公告)号：JPH1181352A
公开(公告)日：1999-03-26
申请号：JP23976197
申请日：1997-09-04
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： MORO TAKASHI , MORIYA HIDEKI , ENDO NOBUAKI , SUZUKI KEIICHI
IPC分类号： E21D9/06 , E02D29/05
摘要： PROBLEM TO BE SOLVED: To provide a semi-cut-and-cover pipe burying method and a semi-cut and cover pipe burying device capable of being applied in the case soil is hard and even in the case the diameter of a buried pipe is large without requiring any complicated and expensive equipment and burying a pipe in the ground through a required course. SOLUTION: An endless belt body 27 constructed between a belt body driving wheel 23 in a pipe burying device main body 1 and a belt body following wheel 24 provided to the front end of an arm body 22 in a small width groove excavator 2 is moved around the circumference to excavate a bedrock with an excavation claw 21 planted on the circumferential surface for cutting a narrow groove in the vertical direction. A pipe burying post 3 is made to enter the small width groove to be formed and, at the same time, a diameter widening rotational body 4 is rotated with a diameter widening drive motor 32 to form an insertion hole having a diameter slightly larger than a buried pipe 7 into the bedrock. The buried pipe 7 mounting one end to a buried pipe anchorage device 6 connected through a rotational joint 5 is pulled into the insertion hole, and excavated earth and sand is pushed out on the ground surface side through the small width groove.

98. 发明专利

JPH10184277A SHIELD MACHINE 失效
公开(公告)号：JPH10184277A
公开(公告)日：1998-07-14
申请号：JP34126996
申请日：1996-12-20
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： ABO TAKATOSHI , MORO TAKASHI
IPC分类号： E21D9/06 , E21D9/08 , E21D9/087
摘要： PROBLEM TO BE SOLVED: To facilitate the steep curve execution in a shield machine and, at the same time, simplify hydraulic equipment in a rear equipment or a piping between shield main body and rear equipment. SOLUTION: A cutter 1 of a shield machine 10 is rotated by driving of an electric cutter driving motor 4 through a pinion 3 and a turning gear 2, and the cutter driving motor 4 is borne on a frame structural body 12 so that a motor axis M is made radially to a shield axis S in the direction of the shield diameter. The pinion 3 and turning gear 2 are formed by combining a spur wheel with a ring-like face gear cutting a rack interlocking with the gear, the pinion 3 transfers the rotation of the cutter driving motor 4 to the turning gear 2, and the turning gear transfers the rotation of the pinion 3 to the cutter 1.

99. 发明专利

JPH09279993A LOAD DISPLAY DEVICE FOR FORCE FEED PUMP 失效
公开(公告)号：JPH09279993A
公开(公告)日：1997-10-28
申请号：JP9285996
申请日：1996-04-15
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： ENDO NOBUAKI , MORO TAKASHI
IPC分类号： E21D9/12
摘要： PROBLEM TO BE SOLVED: To easily and accurately seize the operating condition of a force feed pump with only one cycle. SOLUTION: A load display device 100 has oil pressure detectors 46, 45 to detect oil pressure in oil passages 43, 44 for a hydraulic driving circuit, a memory 48 to memorize detection signals fetched from the oil pressure detectors 46, 45 via an A/D converter 47, a display 49 to graphically display sealing, force feeding and suction processes in one cycle of data memorized in the memory 48 and a display indicator 52 for an operator to properly give display start/stop indication to the display 49. The memory 48, the display 49 and the display indicator 52 are controlled by a controller 50 with their operations mutually related.

100. 发明专利

JPH09100698A CONTROL METHOD AND DEVICE OF ROTOR DRIVING AC ELECTRIC MOTOR 失效
公开(公告)号：JPH09100698A
公开(公告)日：1997-04-15
申请号：JP25891195
申请日：1995-10-05
申请人： HITACHI CONSTRUCTION MACHINERY
发明人： SHIMA TADAO , MORO TAKASHI
IPC分类号： E21D9/093 , E21D9/08
摘要： PROBLEM TO BE SOLVED: To eliminate the unbalance of load of each AC electric motor by a simple and inexpensive means, and freely increase and reduce the speed without limitation, when one machine device is driven by a number of AC electric motors controlled by respective inverter devices. SOLUTION: In a shield excavator 1 for driving a cutter 4 by a number of AC electric motors 2 controlled by respective inverter devices 7, an uniform torque command value 81 is given to each inverter device 7 to uniform the torque in the AC electric motors 2. Further, the speed signal S2 of the cutter 4 or the control signal 83 from the inverter device 7 is properly switched and fed back to perform a speed control.

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