-
公开(公告)号：EP1809852B1
公开(公告)日：2014-03-26
申请号：EP05774748.7
申请日：2005-08-24
CPC分类号： B25D9/18 , B25D9/145 , B25D9/16 , B25D2209/002
-
公开(公告)号：EP1809852A1
公开(公告)日：2007-07-25
申请号：EP05774748.7
申请日：2005-08-24
CPC分类号： B25D9/18 , B25D9/145 , B25D9/16 , B25D2209/002
摘要： A hydraulic impact mechanism comprises a housing (10) with a cylinder bore (11) , a forward working chamber (23) and a rear working chamber (18) , a hydraulic fluid supply passage (26) continuously connected to the forward working chamber (23) and a drain passage (33) connected to the rear working chamber (18) , a hammer piston (12) reciprocally guided in the cylinder bore (11) for delivering hammer blows to a working implement (14) attached to the housing (10) , a pressure accumulator (27) pre-loaded to a certain pressure level, and a distribution valve (30) for alternatingly connecting the rear working chamber (18) to the supply passage (26) and the drain passage (33) to thereby reciprocate the hammer piston (12) , wherein a sequence valve (34) is provided in the drain passage (33) with the purpose to keep up the pressure in the rear working chamber (18) to such a level that the resulting forward directed force will prevent the piston (12) from being moved backwards in the cylinder bore (11) at pressure levels in the supply passage (26) below the pre-load pressure level of the accumulator (27).
-
公开(公告)号：EP1722932A1
公开(公告)日：2006-11-22
申请号：EP05722184.8
申请日：2005-03-07
IPC分类号： B25D9/20
CPC分类号： B25D9/20 , B25D2250/365
摘要： A hydraulic hammer comprising a housing (10) with a longitudinal bore (12), cylinder sleeve (14) supported in the bore (12) a rear and cover (16) closing the bore (12), and a hammer piston (15) reciprocally powered in the cylinder sleeve (14) for delivering blows to a working implement inserted in the guide sleeve (20) mounted at the front end of the bore (12). The hydraulic hammer also comprises a distribution valve (31), for directing pressure fluid to the hammer piston (15), communicating the pressure fluid source and the cylinder sleeve (14). The valve (31) comprises both a clearance seal means (44) and a seat seal (45, 46) for improved tightness.
摘要翻译： 一种液压锤，包括具有纵向孔（12）的壳体（10），支撑在孔（12）中的缸套（14）和封闭孔（12）的盖（16），以及锤活塞（15） 在气缸套筒（14）中往复驱动，用于向插入安装在孔（12）前端的导向套筒（20）中的工作工具输送气流。 液压锤还包括分配阀（31），用于将压力流体引导至锤活塞（15），使压力流体源和缸套（14）连通。 阀（31）包括间隙密封装置（44）和座密封件（45,46）以提高密封性。
-
公开(公告)号：EP1722933B1
公开(公告)日：2008-05-21
申请号：EP05711177.5
申请日：2005-03-07
IPC分类号： B25D17/26
CPC分类号： B25D17/26 , B25D9/125 , B25D2209/002 , B25D2216/0015 , B25D2217/0019 , B25D2217/0049 , B25D2250/365
摘要： A hydraulic breaker hammer comprises a housing (10) with a longitudinal bore (12), and a hammer piston (15) reciprocally powered in bore (12). A working implement inserted in a guide sleeve (20) is received in the forward end of the bore (12) . A working implement retaining means (26a, b) is arranged to axially lock the guide sleeve (20) as well. A lubricant supply passage (21) in the housing , (10) is communicating with the inside of said guide sleeve (20) via radial openings (22 a, b) in the guide sleeve (20). Circumferentially extending annular seal elements (23 a-d) on the outside of The guide sleeve (20) form at least one annular compartment (24, 25). Lubricant is supplied to the inside of the guide sleeve (20) via the annular compartment (24, 25) and the radial openings (22a, b), thereby supplying Lubricant to the outside surface of the guide sleeve (20) within the annular compartment (24,25).
-
公开(公告)号：EP1722931B1
公开(公告)日：2007-11-14
申请号：EP05711176.7
申请日：2005-03-07
IPC分类号： B25D9/04
摘要： Hydraulic breaker hammer comprising a housing (10) with a longitudinal bore (12), a cylinder sleeve (14) mounted in the bore (12), a hammer piston (15) sealing guided in the cylinder sleeve (14), a guide sleeve (21) located in the front end portion of the bore (12) for receiving a working implement, and a rear end cover (16) forming a closure for the rear end of the bore (12). The rear end cover (16) comprises a tubular neck portion (17) which is formed integral as a one piece member with the end cover and which extends into the bore (12). The neck portion (17) forms a guide means for the hammer piston (15),and the bore (12) having an axially facing annular shoulder (18), wherein the cylinder sleeve (14) is supported in a correct operating position between the shoulder (18) and the end cover neck portion (17).
-
公开(公告)号：EP1722933A1
公开(公告)日：2006-11-22
申请号：EP05711177.5
申请日：2005-03-07
IPC分类号： B25D17/26
CPC分类号： B25D17/26 , B25D9/125 , B25D2209/002 , B25D2216/0015 , B25D2217/0019 , B25D2217/0049 , B25D2250/365
摘要： A hydraulic breaker hammer comprises a housing (10) with a longitudinal bore (12), and a hammer piston (15) reciprocally powered in bore (12). A working implement inserted in a guide sleeve (20) is received in the forward end of the bore (12) . A working implement retaining means (26a, b) is arranged to axially lock the guide sleeve (20) as well. A lubricant supply passage (21) in the housing , (10) is communicating with the inside of said guide sleeve (20) via radial openings (22 a, b) in the guide sleeve (20). Circumferentially extending annular seal elements (23 a-d) on the outside of The guide sleeve (20) form at least one annular compartment (24, 25). Lubricant is supplied to the inside of the guide sleeve (20) via the annular compartment (24, 25) and the radial openings (22a, b), thereby supplying Lubricant to the outside surface of the guide sleeve (20) within the annular compartment (24,25).
-
公开(公告)号：EP1722932B1
公开(公告)日：2007-12-05
申请号：EP05722184.8
申请日：2005-03-07
IPC分类号： B25D9/20
CPC分类号： B25D9/20 , B25D2250/365
摘要： A hydraulic hammer comprising a housing (10) with a longitudinal bore (12), cylinder sleeve (14) supported in the bore (12) a rear and cover (16) closing the bore (12), and a hammer piston (15) reciprocally powered in the cylinder sleeve (14) for delivering blows to a working implement inserted in the guide sleeve (20) mounted at the front end of the bore (12). The hydraulic hammer also comprises a distribution valve (31), for directing pressure fluid to the hammer piston (15), communicating the pressure fluid source and the cylinder sleeve (14). The valve (31) comprises both a clearance seal means (44) and a seat seal (45, 46) for improved tightness.
-
公开(公告)号：EP1809443A1
公开(公告)日：2007-07-25
申请号：EP05757435.2
申请日：2005-07-05
IPC分类号： B25D17/24
CPC分类号： B25D17/24 , B25D2250/065 , B25D2250/371
摘要： A portable power tool includes a housing, and an impact mechanism movably supported in the housing and having a front opening for receiving a working implement and a hammer piston for delivering hammer blows to the working implement. The impact mechanism is supported in the housing by a pivot device in a point located between the forward and rear ends of the impact mechanism and allowing longitudinal and pivotal movements but preventing in the support point radial and rotational movements of the impact mechanism relative to the housing. A resilient device is located at a distance from the pivot device and is arranged to bias the impact mechanism to a neutral position relative to the housing and to absorb vibration movements of the impact mechanism to protect the housing against such vibration movements.
-
公开(公告)号：EP1722931A1
公开(公告)日：2006-11-22
申请号：EP05711176.7
申请日：2005-03-07
IPC分类号： B25D9/04
摘要： Hydraulic breaker hammer comprising a housing (10) with a longitudinal bore (12), a cylinder sleeve (14) mounted in the bore (12), a hammer piston (15) sealing guided in the cylinder sleeve (14), a guide sleeve (21) located in the front end portion of the bore (12) for receiving a working implement, and a rear end cover (16) forming a closure for the rear end of the bore (12). The rear end cover (16) comprises a tubular neck portion (17) which is formed integral as a one piece member with the end cover and which extends into the bore (12). The neck portion (17) forms a guide means for the hammer piston (15),and the bore (12) having an axially facing annular shoulder (18), wherein the cylinder sleeve (14) is supported in a correct operating position between the shoulder (18) and the end cover neck portion (17).
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.013 秒)
