公开(公告)号：US09062704B2

公开(公告)日：2015-06-23

申请号：US12113513

申请日：2008-05-01

申请人： Jody Lynn Keihle ,  Tom William Decker

发明人： Jody Lynn Keihle ,  Tom William Decker

IPC分类号： H05B3/00 ,  H05B6/02 ,  F16B31/04 ,  B23P19/06 ,  B25B29/02

CPC分类号： B23P19/068 ,  B25B29/02 ,  F16B31/04

摘要： A compact, portable resistance heating device that takes a source of alternating current electricity and through a series of connections and circuitry splits the alternating current electricity into a plurality of circuits. The compact, portable resistance heating device is capable of heating a plurality of cartridge heaters at one time, individually or a combination thereof. The compact, portable resistance heating device is controlled by at least one controller that controls three (3) power output receptacles. The controller is capable of producing 0-100% output power to each respective cartridge heater. Each cartridge heater may be individually controlled by an on/off switch, and an indicator light may be provided and illuminate when each cartridge heater is energized. The cartridge heaters of the compact, portable resistance heating device do not require close tolerances with an axial bore of a stud or threaded bolt and are further capable of being bent to suit the particular operation.

摘要翻译： 一种紧凑的便携式电阻加热装置，其接收交流电源并且通过一系列连接和电路将交流电分成多个电路。 紧凑型便携式电阻加热装置能够一次加热多个筒式加热器或其组合。 紧凑型便携式电阻加热装置由至少一个控制三（3）个电源输出插座的控制器控制。 控制器能够为每个相应的墨盒加热器产生0-100％的输出功率。 每个墨盒加热器可以由开/关开关单独控制，并且可以提供指示灯并且当每个墨盒加热器通电时点亮指示灯。 紧凑型便携式电阻加热装置的筒式加热器不需要与螺柱或螺栓的轴向孔的紧公差，并且还能够弯曲以适应特定操作。

公开(公告)号：US20150165610A1

公开(公告)日：2015-06-18

申请号：US14568192

申请日：2014-12-12

申请人： Frank Hohmann ,  Jörg Hohmann

发明人： Frank Hohmann ,  Jörg Hohmann

IPC分类号： B25B29/02 ,  B23P19/06

CPC分类号： B25B29/02 ,  B23P19/067 ,  F16B31/043

摘要： A clamping device for expanding a threaded bolt is provided with a support pipe supported against an underlay surrounding the threaded bolt. A cylindrical housing arranged in extension of the support pipe has a piston movable in longitudinal direction and connectable to a hydraulic supply. A changeable bushing is axially carried by the piston and is provided with an inner thread and a radially expanded portion. A resilient arrangement is arranged around the bushing and acts axially on the piston. A lid is secured to the housing. The other support of the resilient arrangement is provided on the lower side of the housing. The lid has a lid base member and a closure lid. The lid base member is provided with an opening closable by the closure lid. The radial extent of the opening is greater than the radial extent of the radially expanded portion of the bushing.

摘要翻译： 用于膨胀螺栓的夹紧装置设置有支撑管，该支撑管支撑在围绕螺栓的底衬上。 设置在支撑管的延伸部的圆柱形壳体具有可沿纵向移动并可连接到液压源的活塞。 可更换的衬套由活塞轴向承载并且设置有内螺纹和径向膨胀部分。 弹性布置布置在套管周围并且轴向地作用在活塞上。 盖子被固定到壳体上。 弹性布置的另一个支撑件设置在壳体的下侧。 盖具有盖基部构件和封闭盖。 盖基构件设有可由封闭盖封闭的开口。 开口的径向范围大于套管的径向扩张部分的径向范围。

公开(公告)号：US20140165789A1

公开(公告)日：2014-06-19

申请号：US14029840

申请日：2013-09-18

申请人： Jörg Hohmann ,  Frank Hohmann

发明人： Jörg Hohmann ,  Frank Hohmann

IPC分类号： B25B29/02 ,  B25B23/00

CPC分类号： B25B29/02 ,  B23P19/067 ,  B25B23/00 ,  B25B23/0064

摘要： A tensioning device for treaded bolts has a supporting tube and a cylinder with a hydraulic supply connected thereto. The supporting tube surrounds the threaded end section of the bolt. A piston is moveable in the cylinder longitudinally. An exchange socket is connected to the piston and driven axially by it. The exchange socket has a first end with internal thread to be screwed onto the threaded end section and a second end with an external polygon member. A tool attachable to the external polygon member enables turning of the exchange socket. The tool has a cup-shaped section having a first open end and an inner side with tool faces that engage the external polygon member. The tool has a drive section that is slimmer than the cup-shaped section and connected to a second end of the cup-shaped section. The drive section extends away from the cup-shaped section.

摘要翻译： 用于踏板螺栓的张紧装置具有支撑管和连接有液压供应的气缸。 支撑管围绕螺栓的螺纹端部。 活塞可纵向移动。 交换插座连接到活塞并由其轴向驱动。 交换插座具有第一端，内螺纹被拧入螺纹端部，第二端具有外部多边形构件。 可附接到外部多边形构件的工具使得交换插座能够转动。 工具具有杯形部分，其具有第一开口端和内侧，工具面与外部多边形构件接合。 该工具具有比杯状部分更薄的驱动部分并连接到杯形部分的第二端。 驱动部分远离杯形部分延伸。

公开(公告)号：US20140060255A1

公开(公告)日：2014-03-06

申请号：US13950871

申请日：2013-07-25

申请人： Aktiebolaget SKF

发明人： Jose Faus ,  Didier Declerck

IPC分类号： B23P19/06

CPC分类号： B23P19/067 ,  B25B29/02 ,  Y10T29/49826

摘要： Device for tensioning a threaded rod comprising an actuator able to exert an axial tensile force on the threaded rod with respect to a structure to be tensioned, the said tension device comprising a cylinder, a piston, a tubular skirt in contact with the cylinder and a surface of the said structure to be tensioned, and a tie for transmitting the axial tensile force of the actuator towards an end of the threaded rod. The tie and the tubular skirt each comprise at least two semicylindrical parts each having two substantially planar axial surfaces, the two axial surfaces of one semicylindrical part being joined radially respectively with one of the two axial surfaces of the other semicylindrical part, so as to form a part of revolution.

摘要翻译： 用于张紧螺杆的装置，其包括能够相对于待张紧的结构施加在所述螺杆上的轴向张力的致动器，所述张紧装置包括圆筒，活塞，与所述圆筒接触的管状裙部和 所述结构的表面被张紧，以及用于将致动器的轴向张力朝向螺杆的端部传递的接头。 领带和管状裙部各自包括至少两个半圆柱形部件，每个半圆柱形部件具有两个基本上平面的轴向表面，一个半圆柱形部件的两个轴向表面分别与另一个半圆柱形部件的两个轴向表面中的一个径向接合，以形成 革命的一部分。

公开(公告)号：US08328482B2

公开(公告)日：2012-12-11

申请号：US12475983

申请日：2009-06-01

申请人： Gordon Britton ,  David Hughes

发明人： Gordon Britton ,  David Hughes

IPC分类号： F16B31/00 ,  F16B31/04 ,  F15B1/00 ,  F99Z99/00

CPC分类号： B25B29/02

摘要： A tensioner for tensioning foundation bolts generally used in securing large utility towers is provided. The tensioner generally comprises a hollow outer body through which the foundation bolt can extend. The lower end of the body, which is adapted to abut onto the foundation surface from which the bolt extends, is provided with an opening allowing access to a foundation nut threaded onto the foundation bolt. The upper end of the outer body slidingly receives therein an inner body with which it defines an annular hydraulic piston, the inner body being configured with a seat portion for receiving and engaging a split nut mounted to the foundation bolt. Upon providing hydraulic fluid to the tensioner, the hydraulic piston urges the split nut, engaged to the foundation bolt, upwardly, thereby tensioning the foundation bolt. The load in the bolt is then maintained by threading down the foundation nut until it abuts onto the foundation surface.

摘要翻译： 提供了一种用于张紧通常用于固定大型公用事业塔的基础螺栓的张紧器。 张紧器通常包括中空的外部主体，基础螺栓可以通过该外部主体延伸。 主体的下端适于抵靠在螺栓延伸的基础表面上，该开口允许进入螺纹连接在基础螺栓上的基础螺母。 外体的上端滑动地容纳有内部体，通过该内部限定了环形液压活塞，内部主体构造有用于接收和接合安装到基础螺栓上的分离螺母的座部。 在向张紧器提供液压流体时，液压活塞向上推动与基础螺栓接合的分离螺母，从而张紧基础螺栓。 然后通过向下穿过基础螺母来保持螺栓中的负载，直到其抵接到基础表面上。

公开(公告)号：US08302509B2

公开(公告)日：2012-11-06

申请号：US12871086

申请日：2010-08-30

申请人： Frank Hohmann ,  Jörg Hohmann

发明人： Frank Hohmann ,  Jörg Hohmann

IPC分类号： B25B29/02 ,  G01N3/08

CPC分类号： B23P19/067 ,  B25B29/02 ,  F16B31/043

摘要： A hydraulic bolt tensioning device has a cylinder supported on a machine part that is to be clamped by threaded bolt and nut. An exchangeable bushing has a first end screwed onto a free threaded end of the threaded bolt that projects past the nut. A tensioning piston is seal-tightly guided in the cylinder and supported on a second end of the exchangeable bushing. A pressure medium is supplied into an annular space between cylinder and piston. A control device is provided for setting a nominal pressure of the pressure medium corresponding to a nominal pretension of the threaded bolt. A yield limit detection device detects whether a yield limit of the threaded bolt is reached during tensioning. A controller acts on a pressure relief device for pressure relief of the bolt tensioning device when reaching, or shortly after reaching, the yield limit of the threaded bolt.

摘要翻译： 液压螺栓张紧装置具有支撑在机械部件上的气缸，该气缸由螺栓和螺母夹紧。 可更换衬套具有螺纹连接到穿过螺母的螺栓的自由螺纹端部上的第一端。 张紧活塞在气缸中被密封地引导并且支撑在可更换衬套的第二端上。 压力介质供应到气缸和活塞之间的环形空间中。 提供控制装置，用于设定对应于螺栓的标称预紧力的压力介质的公称压力。 屈服极限检测装置检测张紧期间是否达到螺栓的屈服极限。 控制器作用于压力释放装置，用于在到达螺栓的屈服极限时到达或不久之后释放螺栓张紧装置。

公开(公告)号：US20120011969A1

公开(公告)日：2012-01-19

申请号：US13235711

申请日：2011-09-19

申请人： Keigo KATOU ,  Masataka Mizuno ,  Yoshio Hirooka

发明人： Keigo KATOU ,  Masataka Mizuno ,  Yoshio Hirooka

IPC分类号： B25B29/02

CPC分类号： B25B29/02

摘要： The invention provides a fastening method and a fastening tool which can stably fasten a nut to a bolt securely and with a small dispersion at a desired axial force. A fastened member is fastened by inserting a bolt to the fastened member, thereafter temporarily fastening a nut and the bolt, pulling a leading end of a shaft portion of the bolt in an axial direction of the bolt, rotating the nut so as to screw into the bolt while elastically deforming the bolt so as to generate an axial force, and thereafter canceling the pulling of the bolt.

摘要翻译： 本发明提供了一种紧固方法和紧固工具，其能够将螺母稳固地紧固到螺栓上并以期望的轴向力以小的分散。 紧固构件通过将螺栓插入紧固构件而紧固，然后临时固定螺母和螺栓，沿着螺栓的轴向拉动螺栓的轴部的前端，旋转螺母以旋入螺钉 螺栓同时使螺栓弹性变形以产生轴向力，然后取消螺栓的拉动。

公开(公告)号：US20110192257A1

公开(公告)日：2011-08-11

申请号：US13023390

申请日：2011-02-08

申请人： Peter Armstrong

发明人： Peter Armstrong

IPC分类号： B25B29/02

CPC分类号： B25B29/02

摘要： A hydraulic bolt tensioner has a reduced height by virtue of inner seals between a cylinder and piston being aligned along a same plane. The tensioner also has a reduced width by virtue of carbon fiber would about the tensioner's housing, reducing the need for a certain thickness of material used for the tensioner's housing.

摘要翻译： 液压螺栓张紧器由于气缸和活塞之间的内部密封沿同一平面对准而具有减小的高度。 张紧器还通过碳纤维围绕张紧器的外壳而具有减小的宽度，减少了用于张紧器壳体的一定厚度的材料的需要。

公开(公告)号：US20110048176A1

公开(公告)日：2011-03-03

申请号：US12871086

申请日：2010-08-30

申请人： Frank Hohmann ,  Jörg Hohmann

发明人： Frank Hohmann ,  Jörg Hohmann

IPC分类号： B25B21/00 ,  B25B23/145

CPC分类号： B23P19/067 ,  B25B29/02 ,  F16B31/043

摘要： A hydraulic bolt tensioning device has a cylinder supported on a machine part that is to be clamped by threaded bolt and nut. An exchangeable bushing has a first end screwed onto a free threaded end of the threaded bolt that projects past the nut. A tensioning piston is seal-tightly guided in the cylinder and supported on a second end of the exchangeable bushing. A pressure medium is supplied into an annular space between cylinder and piston. A control device is provided for setting a nominal pressure of the pressure medium corresponding to a nominal pretension of the threaded bolt. A yield limit detection device detects whether a yield limit of the threaded bolt is reached during tensioning. A controller acts on a pressure relief device for pressure relief of the bolt tensioning device when reaching, or shortly after reaching, the yield limit of the threaded bolt.

摘要翻译： 液压螺栓张紧装置具有支撑在机械部件上的气缸，该气缸由螺栓和螺母夹紧。 可更换衬套具有螺纹连接到穿过螺母的螺栓的自由螺纹端部上的第一端。 张紧活塞在气缸中被密封地引导并且支撑在可更换衬套的第二端上。 压力介质供应到气缸和活塞之间的环形空间中。 提供控制装置，用于设定对应于螺栓的标称预紧力的压力介质的公称压力。 屈服极限检测装置检测张紧期间是否达到螺栓的屈服极限。 控制器作用于压力释放装置，用于在到达螺栓的屈服极限时到达或不久之后释放螺栓张紧装置。

公开(公告)号：US07661336B2

公开(公告)日：2010-02-16

申请号：US11574700

申请日：2005-08-04

申请人： Jorg Hohmann ,  Frank Hohmann

发明人： Jorg Hohmann ,  Frank Hohmann

IPC分类号： B25B29/02 ,  B23P19/06 ,  F16J10/02

CPC分类号： B23P19/067 ,  B25B29/02

摘要： A hydraulic screw tensioning device includes a cylinder supported on a machine part that is to be clamped by a threaded bolt and nut. A first annular piston is guided in a sealed manner in a cylinder element, is disposed on the change sleeve, and is supported against an inclined surface of a monolithic collar of the change sleeve. At least one second annular piston is guided in a sealed manner in a cylinder element, is disposed on the change sleeve, and is supported against the first annular piston. Respective, facing inclined axial annular surfaces on the annular pistons and on the cylinder elements or annular shoulders thereof are inclined in the same direction and are pressure-remote. Annular surfaces on the second annular piston or pistons and on the annular shoulders of the cylinder elements extend perpendicular to the cylinder axis and are pressurized.

摘要翻译： 液压螺杆张紧装置包括一个支撑在机械部件上的气缸，该气缸将由螺栓和螺母夹紧。 第一环形活塞以密封方式被引导到气缸元件中，设置在更换套筒上，并被支撑在变更套筒的整体轴环的倾斜表面上。 至少一个第二环形活塞以密封的方式被引导到气缸元件中，设置在更换套筒上，并被支撑在第一环形活塞上。 相应地，环形活塞上的倾斜轴向环形表面和气缸元件或其环形肩部在相同方向上倾斜并且是压力偏移的。 第二环形活塞或活塞上的环形表面和气缸元件的环形肩部垂直于气缸轴线延伸并被加压。