-
公开(公告)号：JP2020029615A
公开(公告)日：2020-02-27
申请号：JP2019148276
申请日：2019-08-13
Applicant: 株式会社不二越
Abstract: 【課題】300℃近い高温雰囲気での使用に対しても耐熱性を維持できるピニオンシャフトおよびその製造方法を提供する。 【解決手段】少なくとも、質量%で炭素は0.10〜0.50%、ケイ素は0.40〜1.00%、マンガンは0.20〜1.00%、クロムは1.50〜4.00%、モリブデンは 0.10〜1.00%をそれぞれ含有し、残部が鉄および不可避不純物の鉄基合金製のピニオンシャフトにおいて、炭素および窒素を含有する表層部を設ける。その表層部中に含有する炭素および窒素の総和は質量%で1.80%以上とする。 【選択図】図2
-
公开(公告)号：JP2017028931A
公开(公告)日：2017-02-02
申请号：JP2015147658
申请日：2015-07-27
Applicant: 日立建機株式会社
Abstract: 【課題】 回転軸を支持する軸受が電食によって損傷するのを抑える。 【解決手段】 回転軸34と連結板39との連結部に、回転軸34の突出部34Bと連結板39の中心孔39Aとの間に挟込まれる円筒状絶縁紙44Aと、回転軸34の軸端部34Aと連結板39との間に挟込まれる第1の環状絶縁紙44Bと、連結板39と環状板41との間に挟込まれる第2の環状絶縁紙44Cと、各回転軸側ボルト40の軸部に嵌合するボルト嵌合絶縁紙44Dとからなる絶縁紙44を設ける。これにより、回転軸34の軸端部34Aと連結板39との間を、円筒状絶縁紙44A、第1の環状絶縁紙44Bにより電気的に絶縁し、各回転軸側ボルト40と連結板39との間を、第2の環状絶縁紙44C、ボルト嵌合絶縁紙44Dにより電気的に絶縁することができる。 【選択図】 図6
Abstract translation: 从支撑转轴甲抑制轴承由电化腐蚀损坏。 在旋转轴34和连接板39，圆筒状的绝缘纸44A之间的连接部分A将被写入的突出部34B的中心孔39A和旋转轴34的连接平板39，旋转轴34之间 要被写入插置的轴向端部34A和连接板39，第二环形绝缘纸44C将被写入插在连接平板39和环形板41，旋转轴之间的第一环形绝缘纸44B 提供绝缘纸44由螺栓嵌合绝缘纸44D的要被装配在侧螺栓40的轴。 因此，旋转轴34的轴部34A和连接板39，圆筒绝缘纸44A，由一个第一环形绝缘纸44B，连接板39与旋转轴侧螺栓电绝缘40之间 电可以是绝缘的第二环形绝缘纸44C之间，一个螺栓嵌合绝缘纸44D。 点域6
-
-
-
公开(公告)号：JP2001280334A
公开(公告)日：2001-10-10
申请号：JP2000097046
申请日：2000-03-31
Applicant: RYOBI LTD , KEITEKKU KK
Inventor： TANABE HARUYUKI , MORIKAWA HIROSHI
Abstract: PROBLEM TO BE SOLVED: To provide a positioning mechanism of a power tool capable of ensuring the proper rotating operation of a rotary body to a base and the switching operation to a locking condition and an unlocking condition even when the error in size of a ball lock-up part and a lock ball is produced, and keeping the low production cost. SOLUTION: This positioning device comprises a base 5, a rotary body 3 rotatably supported on the base and provided with a first shaft 1 and a bore 3f eccentric from the first shaft 1, an eccentric body 4 rotatably accommodated in the bore 3f, a second shaft 2 rotatably mounted on the eccentric body 4 and eccentric from its central axis, control means 6, 5d, 3b for controlling a rotating position of the eccentric body 4 to the rotary body 3 in accordance with a rotating position of the rotary body 3 to the base 5, and an adjusting mechanism 11 for selectively adjusting the rotating position of the rotary body 3 to the base 5. The adjusting mechanism 11 is composed of locking grooves 5b, etc., 5b formed on the base 5, the lock ball 14 accommodated in the rotary body selectively engageably with the lock grooves, and a lock button 13 capable of locking up the position of the lock ball. The lock button 13 is provided with an inclined face 13d capable of being brought into contact with the lock ball 14.
-
Patent Agency Ranking
公开(公告)号：JP2000205288A
公开(公告)日：2000-07-25
申请号：JP508799
申请日：1999-01-12
Applicant: KOYO SEIKO CO , TOKAI RYOKAKU TETSUDO KK
Inventor： KOYAGI KATSURA , USUI SHUNICHI
Abstract: PROBLEM TO BE SOLVED: To provide a drive shaft having an enhanced operating stability in high speed rotation. SOLUTION: A drive shaft includes a cylindrical shaft 1 and a convex shaft 2 which are coupled together in such a way as capable of relative displacement in the axial direction and also torque transmission in the circumferential direction, and a plurality of balls 15 are installed in the confronting spaces of spline grooves 1b and 2a formed on the two shafts 1 and 2 in their regions midway in the axial direction, and rings 8 and 9 to make slide contact with the regions on the cylindrical inner peripheral surfaces at the two ends in axial direction of the spline groove 1b for hindering the two shafts 1 and 2 from inclining are fitted fast on the regions on the cylindrical outer peripheral surfaces at the two ends in axial direction of the spline groove 2a, and a group of balls 15 are located in the spline groove 2a by locating means (6, 7, 9, 10, 11) in such a way as not capable of moving in the axial direction. In this configuration, the contacting area of the rings 8 and 9 with the cylindrical shaft 1 is greater than in the conventional arrangement, which allows increasing the resisting force against the moment load generated in association with high speed rotation.
-
公开(公告)号：JP2000122469A
公开(公告)日：2000-04-28
申请号：JP31544798
申请日：1998-10-19
Applicant: RICOH KK
Inventor： SUGATA HIDEAKI
Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of a variation in the rotation of a rotary shaft due to eccentricity and to form a high quality image, by fixing the superimposed identical shapes of fly wheels into positions deviated in a circumferential direction with respect to a rotary shaft. SOLUTION: The photoreceptor drum of an image carrier 1 is rotatably supported on a rotary shaft 2 and the rotary shaft 2 is rotated by a drive means. Fly wheels 3 molded out of a metal plate with a molding die are fixed with fixing means 4 so that the superimposed identical shapes of the fly wheels are deviated in a circumferential direction with respect to the fixing shaft 2. That is, on the assumption that the fly wheels 3 of the identical shapes are eccentric, N fixing holes are formed in advanced in the fly wheels 3 at an interval of 360 deg./N in the circumferential direction, and the eccentric portions of the fly wheels 3 are dispersedly arranged evenly in the circumferential direction, thereby offsetting eccentric elements. Thus, an image forming device which prevents the occurrence of a variation in rotation due to eccentricity and is capable of high-quality image formation is obtained.
-
公开(公告)号：JPH11325050A
公开(公告)日：1999-11-26
申请号：JP15064098
申请日：1998-05-14
Applicant: HONDA MOTOR CO LTD
Inventor： MATSUNO KOJI , DEGUCHI NAOHIRO
Abstract: PROBLEM TO BE SOLVED: To facilitate work, such as regulation of a tappet clearance, by a method wherein a rotary body, more concretely, the fly wheel (the crank shaft) of a general purpose engine is manually rotatable. SOLUTION: Protrusions are continuously formed on the peripheral surface (the surface) of a fly wheel 32. Two holes are formed in a protection cover 34 (a fly wheel housing) to cover the protrusions. A rod form member, such as a driver, is inserted in the hole and by pressing the protrusions 36, a crank shaft is rotated. Further, a mark to indicate a reference position, such as a compression top dead center, is formed.
-
公开(公告)号：JPH11107984A
公开(公告)日：1999-04-20
申请号：JP26629297
申请日：1997-09-30
Applicant: SHIMADZU CORP
Inventor： OBARA KOICHI , YOSHIDA MINORU
IPC: F04D29/043 , F04D3/02 , F04D29/04 , F16C3/00 , F16F15/02
Abstract: PROBLEM TO BE SOLVED: To solve the resonance phenomenon of a common shaft by providing annular recessed grooves in several positions of the outer wall of the common shaft to install O-rings, and bringing a main shaft into contact with the common shaft in a part of the clearance formed between the inner wall of the main shaft and the outer wall of the common shaft through the O-rings. SOLUTION: Annular recessed grooves 11 are provided in several positions of the outer wall 8a of a common shaft 8, and O-rings 12 are installed to the recessed grooves 11. A main shaft 7 is brought into contact with the common shaft 8 in a part of the clearance S between the inner wall 7a of the main shaft 7 and the outer wall 8a of the common shaft 8 through the O-rings 12. The recessed grooves 11 are set to a dimension such that the circumferences of the O-rings 12 make contact with the inner wall 7a of the main shaft 7 when the 0-rings 12 are installed. Since the common shaft 8 is supported by the main shaft 7 in the contact positions, vibration of the common shaft 8 is surely suppressed. Thus, the resonance phenomenon of the common shaft can be prevented with a simple and inexpensive structure.
-
-
-
-
-
-
-
-
-
Search Results
329
records
(took 0.031 seconds)
