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21. 发明专利

JPS6381208A ROUGHNESS ESTIMATING METHOD FOR TRACK SURFACE OF ROTATING TRACK WHEEL OF ROLL BEARING AND FOR ROLLING BODY SURFACE 失效
公开(公告)号：JPS6381208A
公开(公告)日：1988-04-12
申请号：JP22704286
申请日：1986-09-25
申请人： ONO SOKKI CO LTD , KANAI HIROSHI , ABE MASATO , KIDO KENICHI
发明人： KANAI HIROSHI , ABE MASATO , KIDO KENICHI
IPC分类号： G01B21/30 , G01M13/04 , G01N21/84 , G01N21/88
摘要： PURPOSE:To easily estimate the roughness of the rotary track wheel track surface of a roll bearing in an assembled state or the surface of a rolling body by using an observation vibration signal of one point on a stationary track wheel. CONSTITUTION:While an outer ring 10 is in a stationary state, an inner ring 20 is driven counterclockwise at an angular speed omega1 and two balls alpha and beta revolve at an angular speed omegab. Here, when the balls alpha and beta are at positions (a) and (b) on the track surface of the inner ring 20 at time t1 and there exist flaws with widths fa and fb at the points (a) and (b), the balls alpha and beta rotate respectively about one-ends of the corresponding flaws and collide against the other-ends to generate impulses with amplitudes proportional to the values obtained by raising the width of the flaws to the (6/5)th power. This impulses excite the natural vibrations of the track surface and the sum of them is transmitted to the outer ring 10, so that a vibration signal y(t1) is observed at one observation point 11 on the outer ring 10. Then an unknown impulse is calculated from the relational expression between a measured equivalent driving impulse calculated from the observed vibration signal and the known impulse response of the natural vibration frequency of the track ring and an estimated equivalent driving impulse calculated from coefficient of vibration propagation and the unknown impulse response of the natural vibration frequency of the track ring, thereby enabling an easy estimation of the roughness.

22. 发明专利

JPS5816791A AUTOMATIC WELDING METHOD AT LOW TEMPERATURE 失效
公开(公告)号：JPS5816791A
公开(公告)日：1983-01-31
申请号：JP11319081
申请日：1981-07-20
申请人： KANAI HIROSHI
发明人： KANAI HIROSHI
IPC分类号： B23K9/23 , B23K9/00 , B23K33/00
摘要： PURPOSE:To weld the body and mouth shaped part of aluminum ware without any defect by forming the mouth attaching part of said body to a projecting shape, and putting the mouth shaped part thereon thereby making the clearance between both constant and the joining surfaces wide. CONSTITUTION:A projecting part 4A is provided to the mouth attaching part of a body 1 in conformity with the inner side of the surface of a mouth shaped part 2 to be joined to the body 1. The part 4A is forced to the inner side of the part 2 and the joining surface C of the forced depth and thickness is formed. A welding rod 3 and a flux 5 are on the inside joining surface of the part 2. By the above-mentioned work, the part 2 is to the body 1 without moving during the work, and the surface C is by having a uniform clearance but having no clearance to allow the entry of gaseous flames. Therefore, the surface C forms a uniform clearance, a welding surface of a wide range, and an L shaped welding surface, and permits defect-free welding of the body 1 of deformed shapes or teapots of thin sheets.

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