专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明授权

US4725176A Fluid actuated nut 失效
标题翻译：流体驱动螺母
公开(公告)号：US4725176A
公开(公告)日：1988-02-16
申请号：US748479
申请日：1985-06-25
申请人： James D. Connolly , Darrel Huff
发明人： James D. Connolly , Darrel Huff
IPC分类号： B25B29/02 , F16B31/04 , F16B37/00
CPC分类号： F16B31/04 , B25B29/02 , Y10S411/01
摘要： A fluid actuated nut having a cylindrical casing engageable at an inner end with a base, the casing containing a coaxial relatively axially shiftable plunger having an inwardly opening partial central bore for threadedly receiving a shank of a bolt, a compression spring acting outwardly on the plunger and inwardly against the casing, and a fluid pressure chamber in the casing outwardly of the piston, the nut being applied by screwing the piston onto the bolt shank to the point of engagement of the inner end of the casing with the base and tightened by sequentially compressing the spring by fluid injected under pressure in the fluid chamber for shifting the casing away from the base, turning the casing to reengage the base and releasing the fluid pressure to expand the spring, and repeating the sequence as necessary to produce the desired tensile and/or compressive force, the nut being loosened by applying fluid pressure to advance the plunger for compressing the spring and disengaging the casing from the base.
摘要翻译：具有圆柱形壳体的流体致动螺母具有可在内端与基座接合的壳体，所述壳体包含具有向内开口的部分中心孔的同轴相对轴向移动的柱塞，用于螺纹地接收螺栓的柄部，在柱塞上向外作用的压缩弹簧并且向内抵靠壳体，以及在壳体中的活塞外部的流体压力室，螺母通过将活塞拧到螺栓柄上而被施加到壳体的内端与基座的接合点并且被顺序地紧固通过在流体室内压力下注入的流体来压缩弹簧，用于将壳体从基座移开，转动壳体以重新接合基座并释放流体压力以使弹簧膨胀，并根据需要重复该顺序以产生所需的拉伸和 /或压缩力，通过施加流体压力使螺母松动以推动柱塞以压缩弹簧并脱开从底座的套管。

42. 发明授权

US4622730A Apparatus to mechanically stress a bolt-type fastener 失效
标题翻译：用于机械应力螺栓型紧固件的装置
公开(公告)号：US4622730A
公开(公告)日：1986-11-18
申请号：US704967
申请日：1985-02-27
申请人： Rolf Steinbock
发明人： Rolf Steinbock
IPC分类号： B21B31/02 , B21B27/02 , B21B27/03 , B25B29/02 , F16B31/04 , F16D1/00 , F16D1/033 , F16D1/097 , B21B13/02 , F16B35/00
CPC分类号： B21B27/035 , B25B29/02 , F16B31/04 , F16D1/00 , F16D1/033 , F16D1/097 , Y10T403/589
摘要： A plurality of jack bolts are threadedly engaged with openings in a flange on a fastener to stress a shank part of the fastener. The flange can be a collar retained on a shaft by a retainer, a nut on a threaded end of a bolt or the head portion of a bolt. The jack bolts can be arranged in a flange on an end of the tension rod to stress arbors against opposite sides of a roll sleeve to form a roll assembly for use in a rolling mill.
摘要翻译：多个千斤顶螺栓与紧固件上的凸缘中的开口螺纹接合以对紧固件的柄部进行应力。凸缘可以是通过保持器保持在轴上的轴环，螺栓的螺纹端上的螺母或螺栓的头部。千斤顶螺栓可以布置在拉杆的端部上的凸缘中，以将轴向应力抵靠辊套的相对侧，以形成用于轧机的辊组件。

43. 发明授权

US4565111A Device for rotating and axially moving a bolt 失效
标题翻译：用于旋转和轴向移动螺栓的装置
公开(公告)号：US4565111A
公开(公告)日：1986-01-21
申请号：US612639
申请日：1984-05-21
申请人： Karl-Heinz Ecker , Erhard Hoffmann
发明人： Karl-Heinz Ecker , Erhard Hoffmann
IPC分类号： B25B21/00 , B25B29/02 , F16B23/00 , G21C13/06 , B25B13/50
CPC分类号： B25B29/02 , F16B23/00 , G21C13/06 , Y02E30/40
摘要： The device for rotating and axially moving a bolt comprises the bolt and a coupling part engageable with the end of the bolt wherein the bolt has a chamber which is accessible from the front end and is provided with at least one tangential abutment and at least one axial abutment for a head with a transverse projection on the coupling part.
摘要翻译：用于旋转和轴向移动螺栓的装置包括螺栓和可与螺栓的端部接合的联接部件，其中螺栓具有可从前端接近的腔室，并且设置有至少一个切向邻接件和至少一个轴向用于在联接部分上具有横向突起的头部的邻接。

44. 发明授权

US4345740A Tensioning system for cables in prestressed concrete 失效
标题翻译：预应力混凝土电缆张紧系统
公开(公告)号：US4345740A
公开(公告)日：1982-08-24
申请号：US188721
申请日：1980-09-19
申请人： Romualdo Macchi
发明人： Romualdo Macchi
IPC分类号： B25B25/00 , B25B29/02 , E04C5/12 , E04G21/12 , E04C5/08
CPC分类号： B25B25/00 , B25B29/02 , E04C5/122 , E04G21/12 , E04G21/121
摘要： A system for tensioning stranded or wire cables in prestressed concrete comprises an anchoring head having holes in which are anchored the strands or wires. The anchoring head has a ring in screw-threaded engagement with an exterior surface of the head for providing a reactive support for the anchoring head. An intermediate member is releasably fixed to the anchoring head by rods which extend through holes in the intermediate member and are in screw-threaded engagement with the anchoring head. The intermediate member also has a screw-threaded exterior for engagement with the ring to allow the ring to provide a reactive support for the intermediate member at intermediate stages in a tensioning operation.The intermediate member is releasably connectable to a tensioning jack thus allowing the jack and the intermediate member to be removed from the anchoring head once tensioning is complete.
摘要翻译：用于在预应力混凝土中张紧绞合或电线电缆的系统包括具有孔的锚固头，锚固在绞线或线上。锚固头具有与头部的外表面螺纹接合的环，用于为锚定头提供反作用支撑。中间构件通过延伸穿过中间构件中的孔并与锚定头螺纹接合的杆可释放地固定到锚固头。中间构件还具有用于与环接合的螺纹外部，以允许环在张紧操作的中间阶段为中间构件提供反作用支撑。中间构件可释放地连接到张紧千斤顶，从而允许千斤顶和中间构件一旦张紧完成就从固定头移除。

45. 发明授权

US4233727A Attachment for screw-tightening devices, preferably for reactor pressure vessels 失效
标题翻译：用于螺丝紧固装置的连接件，优选用于反应堆压力容器
公开(公告)号：US4233727A
公开(公告)日：1980-11-18
申请号：US930977
申请日：1978-08-04
申请人： Anton Kautetzky , Otto Muller
发明人： Anton Kautetzky , Otto Muller
IPC分类号： B23P19/06 , B25B29/02 , G21C13/02 , G21C19/02
CPC分类号： B23P19/067 , B25B29/02 , Y10T29/50
摘要： Accessory for a screw-tightening device having a support ring with hydraulic piston-cylinder assemblies as tensioning elements for pressure-vessel cover screws, the assemblies being disposable on a flange of the pressure-vessel cover, fastening nuts for the cover screws being loosenable and tightenable as well as transportable by the screw-tightening device, including a divided auxiliary ring having parting gaps formed in a circumferential region thereof corresponding to a circumferential region of the support ring at which parting gaps are likewise formed, the auxiliary ring and the support ring being mutually superimposable and clampable, the divided auxiliary ring having the parts thereof provided with respective means for engagement by a lifting tool, the rings having flange connections at the parting gaps thereof, the flange connections being disconnectible to form at least two separate arcuate units respectively including part of the support ring and part of the auxiliary ring clamped together for transport by the screw-tightening device.
摘要翻译：用于具有支撑环的螺丝紧固装置的附件，其具有用于压力容器盖螺钉的张紧元件的液压活塞 - 气缸组件，该组件一次性在压力容器盖的凸缘上，用于盖螺钉的紧固螺母是可松动的，可以通过螺丝紧固装置运送，包括分开的辅助环，其具有形成在其圆周区域中的分隔间隙，该分隔间隙对应于同时形成分隔间隙的支撑环的圆周区域，辅助环和支撑环具有相互重叠和可夹紧的分隔的辅助环，其分部的辅助环设置有用于通过提升工具接合的相应装置，所述环在其分离间隙处具有凸缘连接，所述凸缘连接可分离以分别形成至少两个分开的弧形单元包括支撑环的一部分和辅助环的一部分通过螺丝紧固装置一起运输。

46. 发明授权

US4047456A Motor-driven screwing and transporting tool for reactor pressure vessel head retaining fastenings 失效
标题翻译：用于反应堆压力容器头保持紧固件的马达驱动的旋转和运输工具
公开(公告)号：US4047456A
公开(公告)日：1977-09-13
申请号：US725285
申请日：1976-09-21
申请人： Manfred Scholz
发明人： Manfred Scholz
IPC分类号： B25B29/02 , G21C13/06
CPC分类号： G21C13/06 , B25B29/02 , Y02E30/40
摘要： The invention concerns a motor-driven screwing and transporting tool for tightening or loosening the threaded studs and associated tightening nuts of the head bolting of pressure vessels. After the tightening nuts are loosened or before they are tightened, the weight of the studs is taken over by rotating bearings that can be lifted, so that the studs with their tightening nuts can be screwed in or out, the screw threads of the studs being thus weight-relieved. The invention is intended primarily for nuclear reactor pressure vessels.
摘要翻译：本发明涉及一种用于紧固或松开压力容器头螺栓的螺柱和相关紧固螺母的马达驱动的螺旋和运输工具。紧固螺母松动或紧固之前，螺柱的重量可以通过旋转可以提升的轴承而被接收，从而可以将带有紧固螺母的螺柱拧入或拧出，螺柱的螺纹为从而减轻体重。本发明主要用于核反应堆压力容器。

47. 发明授权

US3965565A Method of and apparatus for tightening high-strength steel bolts 失效
标题翻译：高强度钢制螺栓紧固方法及装置
公开(公告)号：US3965565A
公开(公告)日：1976-06-29
申请号：US584028
申请日：1975-06-04
申请人： Kaneharu Fujii
发明人： Kaneharu Fujii
IPC分类号： B23P19/06 , B25B29/02 , F16B31/04 , B23P11/02
CPC分类号： B23P19/067 , B25B29/02 , F16B31/043 , Y10T29/49863
摘要： In the steel construction using high-strength steel bolts which are tightened in a pretensioned state, a method of and an apparatus for tightening high-strength steel bolts by subjecting the mated nuts to the compressive force which equals substantially the force which places the high-strength steel bolts in the pretensioned state.
摘要翻译：在使用在预张紧状态下被拉紧的高强度钢螺栓的钢结构中，通过使匹配的螺母受到等于基本上等于高强度钢的力的压缩力来紧固高强度钢螺栓的方法和装置，强度钢螺栓处于预张紧状态。

48. 发明授权

US3851906A Head closure system 失效
标题翻译：头关闭系统
公开(公告)号：US3851906A
公开(公告)日：1974-12-03
申请号：US17970371
申请日：1971-09-13
申请人： WESTINGHOUSE ELECTRIC CORP
发明人： FRISCH E , ANDREWS H
IPC分类号： F16J13/02 , B23P19/06 , B25B29/02 , G21C13/00 , G21C13/02 , G21C13/06 , E05C5/04
CPC分类号： G21C13/06 , B23P19/067 , B25B29/02 , G21C13/02 , Y02E30/40 , Y10T292/1099 , Y10T292/221
摘要： In order to reduce the time required for refueling a nuclear reactor, the studs utilized for securing the head of the reactor pressure vessel are provided with modified breechblock threads at their lower ends, and also at their upper ends. After being detensioned, the studs are rotated 60* for disengagement from corresponding threads in a flange at the top of the pressure vessel and are lifted out of the stud holes when the head is removed. The studs are tensioned and detensioned by a plurality of portable hydraulic stud tensioning devices or tensioners which are attached to the upper ends of the studs by the modified breechblock threads at the upper ends of the studs. The tensioners are carried by a separate hoist system mounted on the closure head for the vessel.
摘要翻译：为了减少对核反应堆加油所需的时间，用于固定反应堆压力容器的头部的螺柱在其下端以及其上端设置有改进的后膛螺纹。在被拉紧之后，螺柱旋转60°，以便在压力容器顶部的法兰中与相应的螺纹脱离接合，当头部被移除时，螺柱被提升出螺柱孔。螺栓被多个便携式液压螺柱张紧装置或张紧器张紧和拉紧，所述多个便携式液压螺柱张紧装置或张紧器通过在螺栓的上端处的改进的后膛螺纹连接到螺柱的上端。张紧器由安装在用于容器的封闭头上的单独的提升系统承载。

49. 发明授权

US3835523A Self-straining bolts 失效
标题翻译：自锁螺栓
公开(公告)号：US3835523A
公开(公告)日：1974-09-17
申请号：US33842573
申请日：1973-03-06
申请人： P & O RES & DEV CO LTD
发明人： STANSFIELD F
IPC分类号： B66F3/30 , B25B29/02 , F16B31/04 , F16J1/00 , F16J1/09 , F16J15/32 , B23P11/02
CPC分类号： F16J1/09 , B25B29/02 , F16J15/32 , Y10S411/01 , Y10S411/916 , Y10T29/49874 , Y10T29/5383
摘要： A self-straining bolt includes a shank and a rod of steel or like stiff rigid material which fits with clearance in an axial bore within the shank of the bolt, the bore being closed at one end. A closed cylindrical chamber is secured to the end of the bolt remote from the closed end of the bore, and a piston member which has an overall diameter greater than that of the bore, is fitted in the chamber. The piston member is a close sliding fit in the cylindrical chamber and engages the end of the rod adjacent the chamber. A disc of a resilient material with a hardness in the range of Shore hardness 10 to 100, and preferably 40 to 70, and a thickness of at least 3/8 inch, and preferably at least 1/2 inch, abut the working face of the piston and bears with its periphery against the cylindrical wall of the chamber so as to form a seal. A conduit extends through the wall of the chamber for connecting the chamber to a source of fluid under pressure whereby a pressure can be applied to the piston through the disc to cause the rod to press against the closed end of the bore and strain the shank of the bolt. The disc prevents fluid leaking from the chamber through the space between the piston and the cylindrical wall of the chamber.
摘要翻译：自应变螺栓包括柄和杆或类似硬刚性材料的棒，该刚性材料与螺栓的柄部内的轴向孔中的间隙配合，孔在一端封闭。闭合的圆柱形室被固定到远离孔的封闭端的螺栓的端部，并且具有大于孔的总直径的总直径的活塞构件安装在腔室中。活塞构件在圆柱形腔室中紧密地滑动配合并且接合邻近腔室的杆的端部。硬度在肖氏硬度10〜100，优选为40〜70，厚度为3/8英寸以上，优选为1/2英寸以上的硬度的弹性材料的盘，活塞并且其周边承载在腔室的圆柱形壁上，以便形成密封。导管延伸穿过室的壁，用于将腔室连接到压力源处，由此可以通过盘将活塞压力施加到活塞上，以使杆压靠孔的封闭端，螺栓。该盘防止流体从腔室泄漏通过活塞与腔室的圆柱形壁之间的空间。

50. 发明授权

US3722332A Apparatus for securing the bolts of the reactor pressure vessel head to the reactor pressure vessel 失效
标题翻译：用于将反应器压力容器的螺栓固定到反应器压力容器的装置
公开(公告)号：US3722332A
公开(公告)日：1973-03-27
申请号：US3722332D
申请日：1971-06-01
申请人： TRANSFER SYSTEMS
发明人： JONES C
IPC分类号： B25B29/02
CPC分类号： B25B29/02
摘要： Apparatus securing a locking bolt of a pressure head to a reactor pressure vessel in which the pressure head flange is urged in one direction and the bolt is tensioned in an opposite direction to reduce the interfacing force between confronting walls of a nut securing the locking bolt and the pressure head flange, while an operator tightens the nut against the pressure head flange. For tensioning the bolt, a cylindrical force transmitting member has its lower end threaded for engagement with the locking bolt and it upper end threaded, but without any pitch, to receive in threaded engagement a puller or lifter rod similarly threaded. The force transmitting member is split axially so that its halves can be displaced radially to facilitate the retaining of the lifter rod in threaded engagement therewith, while rotating the force transmitting member for adjustable threaded engagement with the locking bolt without rotating the puller rod. Axially movable retaining sleeves surround the split force transmitting member for at times to permit separation thereof to retain the lifted rod in threaded engagement therewith while rotating the force transmitting member for adjustable threaded engagement with the locking bolt without rotating the puller rod, and at other times securing the force transmitting member in locking engagement with the lifter rod for movement therewith. For urging the flange in the one direction a force is transmitted through columns and a connector sleeve for application to the pressure head flange. A suitable hydraulic system with pistons initiates the transmitted forces in each direction.
摘要翻译：将压头的锁定螺栓固定到反应堆压力容器的装置，其中压头凸缘沿一个方向被推动并且螺栓沿相反方向张紧，以减小固定锁定螺栓的螺母的面对壁之间的接合力压头头法兰，同时操作者将螺母拧紧在压头法兰上。为了张紧螺栓，圆柱形力传递构件的下端螺纹用于与锁定螺栓接合，并且其上端螺纹但没有任何间距以螺纹接合的方式接纳拉杆或提升杆，其类似地螺纹连接。力传递构件被轴向地分开，使得其半部可以径向移位，以便于使提升杆保持与其螺纹接合，同时旋转力传递构件以与锁定螺栓可调螺纹接合而不旋转拉杆。轴向可移动的保持套筒围绕分力传递部件，有时允许其分离以将提升的杆保持螺纹接合，同时旋转力传递部件以与锁定螺栓可调螺纹接合而不旋转拉杆，并且在其它时间固定力传递部件与升降杆锁定接合以与其一起运动。为了沿一个方向推动凸缘，力通过柱和连接器套筒传递，以施加到压头凸缘。具有活塞的合适的液压系统在每个方向上启动传递的力。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式