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    • 1. 发明专利
    • Cutter bit and method of manufacturing the same
    • 切割机及其制造方法
    • JP2014141846A
    • 2014-08-07
    • JP2013011677
    • 2013-01-25
    • Taisei Corp大成建設株式会社Maruwagiken Co Ltd株式会社丸和技研
    • MORITA TAIJITAKAKURA KATSUHIKOKAYA FUMITAKASASAKI MAKOTO
    • E21D9/087E21B10/46
    • PROBLEM TO BE SOLVED: To provide a cutter bit whose cutting capability is free from lowering even when cutting a gravel layer or the like, and to provide a method of manufacturing the same.SOLUTION: A cutter bit 1 includes a cutting edge part 2, and a base metal 3 to which the cutting edge part 2 is fixed. The cutting edge part 2 includes a plurality of impact-resistant tips 21 and wear-resistant tips 22. The plurality of impact-resistant tips 21 are continuously laminated, and the lamination number of the continuously laminated impact-resistant tips 21 is set on the basis of an excavation distance of the gravel layer. The thickness of each of the wear-resistant tips 22 is set on the basis of a coefficient of friction against the other geological layer than the gravel layer.
    • 要解决的问题:提供即使在切割砾石层等时切割能力也不降低的切削刀头,并提供其制造方法。解决方案:切削刀头1包括切削刃部分2, 以及固定切削刃部2的基底金属3。 切削刃部2包括多个抗冲击头部21和耐磨头部22.多个抗冲击头部21被连续地层压,并且将连续层压的耐冲击刀片21的层压次数设定在 砾石层开挖距离的基础。 基于与砾石层相对的另一个地质层的摩擦系数来设定每个耐磨端头22的厚度。
    • 2. 发明专利
    • Evaluation method for soundness of used cutter bit
    • 使用切割机的声音评估方法
    • JP2011246952A
    • 2011-12-08
    • JP2010120782
    • 2010-05-26
    • Maruwagiken Co LtdTaisei Corp大成建設株式会社株式会社丸和技研
    • MORITA TAIJITAKAKURA KATSUHIKOSASAKI MAKOTO
    • E21D9/087
    • PROBLEM TO BE SOLVED: To provide an evaluation method for soundness of a used cutter bit by which the effective utilization of resources and the reduction of environmental impact can be attained.SOLUTION: An evaluation method for soundness of a used cutter bit comprises the first step of recovering a used cutter bit 1, the second step of evaluating soundness of the recovered cutter bit 1, and the third step of selecting a reuse destination of the cutter bit 1. In the second step, it is determined whether or not a base material 3 constituting the cutter bit 1 and a carbide tip 2 fitted to the front end of the base material 3 by brazing are reusable without separating them, and the cutter bit 1 determined to be reusable is evaluated in terms of soundness specifying an effective brazing area in a brazing face 4 and a fatigue limit of a brazing place. In the third step, if an evaluation index consisting of the effective brazing area and the fatigue limit of the brazing place satisfies a strength required to excavate a natural ground, the natural ground is selected as a reuse destination of the cutter bit.
    • 要解决的问题:提供一种能够有效利用资源和减少对环境的影响的二手刀头的良好性的评价方法。 解决方案:用于使用的切割刀头的良好性的评估方法包括恢复使用过的切割刀头1的第一步骤,评估恢复的刀具刀头1的良好性的第二步骤,以及选择再利用目的地的第三步骤 在第二步骤中,确定构成刀头1的基材3和通过钎焊装配到基材3的前端的硬质合金刀头2是否可重复使用而不分离它们, 根据确定钎焊面4中的有效钎焊区域和钎焊处的疲劳极限的良好性来评价确定为可重复使用的切削刀头1。 在第三步骤中,如果由钎焊区域的有效钎焊区域和疲劳极限构成的评价指标满足挖掘自然地面所需的强度,则选择自然地面作为切削刀头的再利用目的地。 版权所有(C)2012,JPO&INPIT
    • 3. 发明专利
    • Excavator
    • 挖掘机
    • JP2013079519A
    • 2013-05-02
    • JP2011219897
    • 2011-10-04
    • Taisei Corp大成建設株式会社Maruwa Giken:Kk株式会社丸和技研
    • MORITA TAIJIKAYA FUMITAKASASAKI MAKOTO
    • E21D9/087
    • PROBLEM TO BE SOLVED: To provide an excavator capable of preventing the eccentric wear of cutter bits when cutting rock masses for a long time.SOLUTION: An excavator 1 has a cutter face plate 3 at the front end of the cylindrical shell. A front end surface 3a of the cutter face plate 3 is formed spherical. On the front end face 3a, a number of cutter bits 4 are provided radially from a center 3b. Each of the cutter bits 4 includes a bit body 41, and a rotation shaft 43 joined at one end to the base end of the bit body 41 via a collar portion 42, the bit body 41 being formed approximately conical. In the front end face 3a, recesses 31 are also provided corresponding to the respective cutter bits 4. In the recesses 31, bearings 5 are provided for supporting the rotation shafts 43 rotatably on a normal line A passing through the front end face 3a. Thus, the rotation shafts 43 are rotated utilizing the rotation of the cutter face plate 3.
    • 要解决的问题:提供一种能够在长时间切割岩石块时能够防止刀具的偏心磨损的挖掘机。 解决方案:挖掘机1在圆筒形壳体的前端具有切割面板3。 刀面板3的前端面3a形成球面。 在前端面3a上,从中心3b径向设置多个切削刀头4。 每个切割刀头4包括钻头体41和旋转轴43,旋转轴43通过轴环部分42在一端连接到钻头体41的基端,钻头体41形成为大致圆锥形。 在前端面3a中,也相应于切削刀头4设置凹部31.在凹部31中,设有轴承5,用于将旋转轴43可旋转地支撑在通过前端面3a的法线A上。 因此,旋转轴43利用切割面板3的旋转而旋转。版权所有:(C)2013,JPO&INPIT
    • 4. 发明专利
    • Cutter bit
    • 切割机
    • JP2010150806A
    • 2010-07-08
    • JP2008329700
    • 2008-12-25
    • Maruwa Giken:KkTaisei Corp大成建設株式会社株式会社丸和技研
    • MORITA TAIJIADACHI HIDEAKIOKUBO HIDEYAKAYA FUMITAKASASAKI MAKOTO
    • E21D9/087
    • PROBLEM TO BE SOLVED: To provide a cutter bit capable of reducing the risk of damage to an excavator etc. by decreasing the frequency of replacement associated with abrasion. SOLUTION: The cutter bit 1 includes a bit body 10, a plurality of blade portions 11 which are superposed on the bit body 10, an abrasion adjusting material 12 which is interposed between the blade portions 11, and a fixing portion 13 for fixing an end of the blade portion 11. The abrasion adjusting material 12 is made of a material which has the material property of wearing out easily than the fixing portion 13 and which is equipped with a function of a heat stress relaxation material when the blade portion 11 and the fixing portion 13 are joined together. The fixing portion 13 is made of a material which wears out easily than the blade portion 11 and which has rigidity and strength sufficient for a structural member. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种能够通过降低与磨损相关的替换频率来降低​​对挖掘机等造成损害的风险的切削刀头。 解决方案:刀头1包括钻头体10,叠置在钻头体10上的多个叶片部分11,介于叶片部分11之间的磨损调节材料12和用于 固定刀片部分11的端部。磨损调节材料12由具有比固定部13容易地磨损的材料的材料制成,并且当刀片部分具有热应力松弛材料的功能时 11和固定部13接合在一起。 固定部13由比刀片部11容易地磨损的材料制成,并且具有足够的结构构件的刚性和强度。 版权所有(C)2010,JPO&INPIT
    • 5. 发明专利
    • Bit inspection method
    • 位检查方法
    • JP2013156032A
    • 2013-08-15
    • JP2012014445
    • 2012-01-26
    • Taisei Corp大成建設株式会社Maruwa Giken:Kk株式会社丸和技研Institute Of National Colleges Of Technology Japan独立行政法人国立高等専門学校機構
    • TAKAKURA KATSUHIKOMORITA TAIJIKAYA FUMITAKASASAKI MAKOTOIWAMOTO TATSUYA
    • G01N29/04G01B17/02G01N29/30
    • PROBLEM TO BE SOLVED: To provide a bit inspection method capable of easily moving an ultrasonic probe and performing flaw detection with equivalent precision over the whole flaw detection surface.SOLUTION: A bit inspection method comprises: a shape measurement step of measuring a thickness dimension of a carbide tip 10 with its front surface 11 and back surface 12 being non-parallel to each other; a reference thickness dimension determination step of determining an average value of thickness dimensions as a reference thickness dimension; a correction coefficient calculation step of calculating a correction coefficient of an echo value from a difference between a thickness dimension at a measurement point P and the reference thickness dimension; an ultrasonic flaw insepction step of performing an ultrasonic flaw inspection of a brazed surface 3, by setting the brazed surface 3 corresponding to a position having the reference thickness dimension to match a focal distance of an ultrasonic probe 2 and moving the ultrasonic probe 2 along the front surface 11 of the carbide tip 10; a correction step of calculating a corrected echo value by multiplying a measured echo value at each measurement point P obtained in the ultrasonic flaw inspection step by a correction coefficient; and a determination step of determining whether a brazing state is good or bad based on the corrected echo value.
    • 要解决的问题:提供一种能够容易地移动超声波探头并且在整个探伤表面上以相当的精度执行探伤的钻头检查方法。解决方案:一种检查方法包括:形状测量步骤,测量厚度尺寸 其前表面11和后表面12彼此不平行的硬质合金刀头10; 基准厚度尺寸确定步骤,确定厚度尺寸的平均值作为参考厚度尺寸; 校正系数计算步骤,根据测量点P的厚度尺寸与基准厚度尺寸之间的差计算回波值的校正系数; 通过将与具有基准厚度尺寸的位置相对应的钎焊表面3设定为与超声波探头2的焦距匹配并沿超声波探头2移动的方式设置对钎焊表面3进行超声波探伤2的超声波探伤步骤 硬质合金刀头10的前表面11; 校正步骤,通过将在所述超声波探伤步骤中获得的每个测量点P处的测量回波值乘以校正系数来计算校正回波值; 以及基于校正回波值来确定钎焊状态是好还是坏的确定步骤。
    • 6. 发明专利
    • Bit inspection method
    • 位检查方法
    • JP2013156031A
    • 2013-08-15
    • JP2012014437
    • 2012-01-26
    • Taisei Corp大成建設株式会社Maruwa Giken:Kk株式会社丸和技研Institute Of National Colleges Of Technology Japan独立行政法人国立高等専門学校機構
    • TAKAKURA KATSUHIKOMORITA TAIJIKAYA FUMITAKASASAKI MAKOTOIWAMOTO TATSUYA
    • G01N29/04G01N29/30
    • PROBLEM TO BE SOLVED: To provide a bit inspection method capable of easily moving an ultrasonic probe and performing flaw detection with equivalent precision over the whole flaw detection surface.SOLUTION: A bit inspection method comprises: a preparation step of preparing a carbide tip sample 15 simulating an actually used carbide tip 10, by formation with the same material or the like; a sample inspection step of performing an ultrasonic flaw inspection on a back face 17 of the carbide tip sample 15 regarded as a flaw detection surface; a reference echo value selection step of selecting a reference echo value on the basis of echo values obtained in the sample inspection step; a correction coefficient calculation step of calculating a correction coefficient by dividing the reference echo value by the echo value; an ultrasonic flaw inspection step for performing an ultrasonic flaw inspection on a brazed surface 3, of an actually used bit 1, regarded as a flaw detection surface; a correction step of calculating a corrected echo value by multiplying a measured echo value at each measurement point P obtained in the ultrasonic flaw inspection step by a corresponding correction coefficient; and a determination step of determining whether a brazing state is good or bad based on the corrected echo value.
    • 要解决的问题:提供一种能够容易地移动超声波探头并且在整个探伤表面上以相当的精度执行探伤的钻头检查方法。解决方案:一种检查方法包括:制备碳化物尖端样品15的准备步骤 通过用相同的材​​料等形成模拟实际使用的硬质合金刀头10; 在被认为是瑕疵检测面的硬质合金尖端样品15的背面17上进行超声波探伤的样本检查步骤; 参考回波值选择步骤,基于在样本检查步骤中获得的回波值来选择参考回波值; 校正系数计算步骤,通过将所述参考回波值除以所述回波值来计算校正系数; 超声波探伤步骤,用于对实际使用的位1的钎焊表面3进行超声波探伤,被认为是探伤面; 通过将在超声波探伤步骤中获得的每个测量点P处的测量回波值乘以相应的校正系数来计算校正回波值的校正步骤; 以及基于校正回波值来确定钎焊状态是好还是坏的确定步骤。
    • 7. 发明专利
    • 止水構造およびその構築方法
    • 水切割结构及其构造方法
    • JP2015028295A
    • 2015-02-12
    • JP2014205497
    • 2014-10-06
    • 大成建設株式会社Taisei Corp
    • IGASAKI KEIMORITA TAIJITAKAKURA KATSUHIKOKAWAKITA JUN
    • E21D11/38
    • 【課題】非開削工法により構築されたトンネル覆工と、別工程で構築された地下躯体との間を止水する。【解決手段】非開削工法により構築されたトンネル覆工20と、このトンネル覆工20と別工程の開削工法により構築された地下躯体25とを組み合わせてなる地中構造物1における、トンネル覆工20と地下躯体25との間の止水構造30であって、トンネル長手方向に隣り合うリング(トンネル函体22,22)間に止水部材31を挟むとともに、止水部材31の一端(露出部33)をトンネル覆工20の表面から露出させ、地下躯体25の底版部13または頂版部12の少なくとも一方を覆う防水シート35の端部(垂下部分35a)を、トンネル覆工20の表面および止水部材31の露出した部分と面接触させたことを特徴とする。【選択図】図1
    • 要解决的问题:切断由非开放式方法构造的隧道衬砌和通过单独工艺构造的地下骨架之间的水。解决方案:在非开放式构造的隧道石灰20之间的截流结构30 通过将隧道石灰20和地下骨架25组合而形成通过与地下结构1中的隧道衬里20分开的开放方法构造的地下骨架25和水切断构件31 夹在隧道纵向相邻的环(隧道箱主体22和22)之间,并且防水构件31的一端(暴露部分33)从隧道石灰20的表面露出,并且端部 用于覆盖地下骨架25的底部板坯部分13和顶部板坯部分12中的至少一个的防水片材35的悬挂部分35a与隧道衬里20的表面和露出部分的表面接触 t 他断水构件31。
    • 8. 发明专利
    • Entrance structure for tunnel and method of starting shield excavator
    • 隧道入口结构及开启盾构式挖掘机的方法
    • JP2014091938A
    • 2014-05-19
    • JP2012241972
    • 2012-11-01
    • Taisei Corp大成建設株式会社Mutsubishi Rubber Co Ltd六菱ゴム株式会社
    • MORITA TAIJISEKIYA MASAYUKI
    • E21D9/06
    • PROBLEM TO BE SOLVED: To obtain cut-off effect even when a plurality of tunnel linings are formed at one start port.SOLUTION: There is provided an entrance structure for a tunnel which includes a plurality of tunnel linings 20, 20 arranged side by side at an interval, an outside entrance 30, and an inside entrance 50. The outside entrance 30 includes first cutoff means 31 coming into contact with an outer peripheral surface of the inside entrance 50, which includes a plurality of ring parts 51, 51 provided corresponding to the plurality of tunnel linings 20, 20, a connection part 52 closing a gap between the adjacent ring parts 51, 51, and a plurality of pieces of second cutoff means 55 provided for the plurality of ring parts 51, 51 respectively. The respective ring parts 51 surround the respective tunnel linings 20, and the second cutoff means 55 comes into contact with an outer peripheral surface of each tunnel lining 20, and is adjustable in frictional force against outer peripheral surfaces of the tunnel linings 20, 20.
    • 要解决的问题:即使当在一个起始端口处形成多个隧道衬里时也获得截止效果。解决方案:提供了一种用于隧道的入口结构,其包括并排设置的多个隧道衬里20,20 一个间隔,一个外部入口30和一个内部入口50.外部入口30包括与内部入口50的外周表面接触的第一切断装置31,其包括多个相应的环形部分51,51 分别连接多个隧道衬套20,20,连接部分52,该连接部分52分别相邻的环形部分51和51之间的间隙以及分别设置在多个环形部分51,51上的多个第二切割装置55。 相应的环部51围绕相应的隧道衬里20,并且第二截止装置55与每个隧道衬里20的外周表面接触,并且可以对隧道衬里20,20的外周表面的摩擦力进行调节。
    • 9. 发明专利
    • Method for constructing underground space
    • 建筑地下空间的方法
    • JP2014091937A
    • 2014-05-19
    • JP2012241951
    • 2012-11-01
    • Taisei Corp大成建設株式会社
    • TAKAKURA KATSUHIKOIMAISHI TAKASHINAKAMURA TAKAYOSHIOSAKA MAMORUMORITA TAIJINISHIDA YOSHIOHATTORI YOSHIFUMIITO YUICHIIWASHITA ATSUSHI
    • E21D13/02E21D9/06
    • PROBLEM TO BE SOLVED: To propose an underground space construction method for constructing an underground space including a main line tunnel without interfering with the main line tunnel.SOLUTION: In an underground space construction method, a plurality of small cross section tunnels along the axial direction of a main line tunnel T1 are juxtaposed before or after construction of the main line tunnel T1, and a region enclosed by the plurality of small cross section tunnels is excavated in a state that the main line tunnel T1 is included in the region to form a large cross section space 1. The underground space construction method includes: a forward excavation step of making an excavator for small cross section tunnel excavate from a base end 12 toward a tip end 11 of the large cross section space 1; a tip end excavation step of making the excavator carry out U-turn in underground of the outside of the cross section of the main line tunnel T1 on the tip end 11 side of the large cross section space 1; and a return path excavation step of making the excavator excavate from the tip end 11 toward the base end 12.
    • 要解决的问题:提出一种地下空间施工方法,用于在不干扰主线隧道的情况下,构建包括主线隧道的地下空间。解决方案:在地下空间施工方法中,沿轴向方向的多个小横截面隧道 在主线隧道T1的构造之前或之后并列设置主线路隧道T1,并且在主线路隧道T1被包括在该区域中的状态下挖出由多个小横截面隧道围成的区域,以形成 大截面空间1.地下空间施工方法包括:从大截面空间1的基端12向前端11挖掘小截面隧道挖掘机的前方挖掘工序; 在大截面空间1的前端部11侧,使主体隧道T1的横截面外侧的地下部进行U型转弯的前端挖掘工序; 以及使挖掘机从前端部11朝向基端部12进行挖掘的返回路径挖掘工序。