-
公开(公告)号：US4424883A
公开(公告)日：1984-01-10
申请号：US356446
申请日：1982-03-09
申请人： Franco Musiani
发明人： Franco Musiani
摘要： Disclosed herein is a silencer constituted by a casing, open at the lower extremity made to communicate with the source of compressed gases, and closed at the top by a cover, inside which are placed, from the bottom upwards, a first element, a filter and a second element which, jointly with the inner surface of the casing, define a first, a second and a third expansion chamber, respectively, for the compressed gases.The first expansion chamber communicates with the open extremity of the casing, the second contains the aforementioned filter, while the third, via a slit made in the cover, communicates with the outside. The first and second expansion chamber are inter-communicating because of through holes drilled in the first element, and likewise the second and third expansion chamber are inter-communicating because of through holes drilled in the second element.
摘要翻译： 本文公开了一种消音器，其由在下端开口以与压缩气体源连通的壳体构成，并且在顶部由盖子封闭，其内部从底部向上放置第一元件，过滤器 以及与壳体的内表面共同限定用于压缩气体的第一，第二和第三膨胀室的第二元件。 第一膨胀室与壳体的开口端连通，第二膨胀室包含上述过滤器，而第三膨胀室经由盖中形成的狭缝与外部连通。 第一和第二膨胀室由于在第一元件中钻出的通孔而相互连通，并且同样地，第二和第三膨胀室由于在第二元件中钻出的通孔而相互连通。
-
92.发明授权
公开(公告)号：US4030553A
公开(公告)日：1977-06-21
申请号：US589022
申请日：1975-06-23
申请人： Thomas H. Rockwell
发明人： Thomas H. Rockwell
CPC分类号： B25D17/11 , B25D17/02 , Y10S173/02
摘要： A method of modifying a percussion tool to provide noise reduction, and a percussion tool having effective noise damping characteristics.In the method of the present invention, a troublesome noise frequency radiated by the tool is identified, and a resonant bending mode shape for the tool is determined, which bending mode shape corresponds to the identified noise frequency. The tool is then assembled and a structural discontinuity is introduced at a point along the length of the tool which is a predetermined axial distance from a selected antinode of the bending mode shape to provide an impedance mismatch at that point.The tool, which is of predetermined length, is formed of one or more sections, each of which is of a selected length. The lengths of the sections are carefully determined such that when the tool is in assembled condition, impedance mismatches are provided at selected points along the length of the tool, to provide noise reduction of several troublesome noise frequencies.
摘要翻译： 一种修改敲击工具以提供降噪的方法，以及具有有效噪声阻尼特性的冲击工具。
-
公开(公告)号：US3965992A
公开(公告)日：1976-06-29
申请号：US556186
申请日：1975-03-06
申请人： James A. Swisher
发明人： James A. Swisher
CPC分类号： B25D17/11 , Y10S173/02
摘要： Impact driven tools of the type generally comprising a bitter end bounded by a collar and a shank and a tip are provided with internal silencing means comprising an opening in the bitter end, said opening filled with a sound attenuating material, which is preferably steel shot loosely packed in the opening and retained therein by a force fit plug secured by a weld. The opening is preferably axial and extends through the bitter end to or below the collar. In large diameter impact driven tools multiple openings are provided parallel to the axis and terminating at staggered points. Each such hole is filled with a sound attenuating material, such as steel shot. The rams of impacting apparatus, or air hammers, are also provided with internal silencing means comprising at least one opening, each such opening being filled with sound attenuating material, which is preferably steel shot loosely packed and retained by a force fit plug secured by a weld.
摘要翻译： 通常包括由轴环和柄部以及尖端限定的苦端的冲击驱动工具设置有内部消音装置，其包括在苦端中的开口，所述开口充满声音衰减材料，其优选地松散地钢制 包装在开口中并通过由焊缝固定的力配合插塞保持在其中。 该开口优选是轴向的，并延伸穿过该套环的或端部的苦端。 在大直径冲击驱动工具中，平行于轴线提供多个开口，并以交错点终止。 每个这样的孔充满声音衰减材料，例如钢丸。 冲击装置或空气锤的公柱还设置有内部消音装置，其包括至少一个开口，每个这样的开口充满声音衰减材料，其优选地是钢松散地包装并由通过 焊接。
-
公开(公告)号：US3856107A
公开(公告)日：1974-12-24
申请号：US10558871
申请日：1971-01-11
申请人： ADAMS R , SHARLAND I
发明人： RABETT R
CPC分类号： B25D17/11 , Y10S173/02
摘要： A percussion tool, typically known as a ''''steel,'''' having a longitudinally extending stem, a shank portion at one end and a working head at the other end, wherein the stem is sufficiently weighted, at about the mid-point of its length, to inhibit transverse vibration of the tool.
摘要翻译： 敲击工具通常称为“钢”，其具有纵向延伸的杆，在一端的柄部和在另一端的工作头，其中杆在其长度的中点附近被充分地称重， 以抑制工具的横向振动。
-
公开(公告)号：US3684033A
公开(公告)日：1972-08-15
申请号：US3684033D
申请日：1971-06-25
申请人： ATLAS COPCO AB
摘要： An independently rotated, muffled pneumatic rock drill comprising an impact mechanism housing in which an impact mechanism and a rotation motor are located and in which housing also is enclosed an air volume into which the exhaust air from both the impact mechanism and the rotation motor is discharged. The housing comprises at least two separable parts, one of which is a detachable cover surrounding the rotation motor.
摘要翻译： 一种独立旋转的消声气动凿岩机，其包括冲击机构壳体，冲击机构和旋转马达位于该冲击机构壳体中，并且壳体还包围有来自冲击机构和旋转马达的排气的排出空气 。 壳体包括至少两个可分离部分，其中一个是围绕旋转马达的可拆卸盖。
-
公开(公告)号：US3662855A
公开(公告)日：1972-05-16
申请号：US3662855D
申请日：1970-05-04
申请人： ROBERT D ADAMS , IAN J SHARLAND
发明人： ADAMS ROBERT D , SHARLAND IAN J
CPC分类号： B25D17/11 , Y10S173/02
摘要： A tool for vibratory or impact machines, having a collar of vibration dampening material mounted around the tool body for reducing or muffling tool noise occurring during operation of the machines. The collar should be located at least around the point of maximum lateral amplitude of the tool body during operation of the machine, and may be enclosed in a casing or otherwise secured to the tool body.
摘要翻译： 用于振动或冲击机器的工具，具有安装在工具主体周围的减振材料的环，用于减少或消除在机器操作期间发生的工具噪音。 在机器操作期间，套环应至少位于工具主体的最大横向振幅点附近，并且可以封闭在外壳中或以其他方式固定到工具主体上。
-
公开(公告)号：US3223181A
公开(公告)日：1965-12-14
申请号：US18288862
申请日：1962-03-27
申请人： PRICE VERNON L
发明人： PRICE VERNON L
CPC分类号： B25D17/11 , B25D9/08 , Y10S173/02
-
公开(公告)号：US2453240A
公开(公告)日：1948-11-09
申请号：US70201046
申请日：1946-10-08
申请人： IBM
发明人： MALMROS GUSTAV V A
IPC分类号： B25D17/11
CPC分类号： B25D17/11
-
公开(公告)号：US2136315A
公开(公告)日：1938-11-08
申请号：US17595737
申请日：1937-11-22
CPC分类号： E01C23/124 , B25D17/11 , Y10S173/02 , Y10T29/4589
-
-
-
-
-
-
-
-
搜索结果
99 条记录 (耗时 0.012 秒)
