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    • 4. 发明专利
    • Oil-retaining sintered bearing
    • 油保持轴承
    • JP2006125516A
    • 2006-05-18
    • JP2004314607
    • 2004-10-28
    • Ntn CorpNtn株式会社
    • SHIMIZU MASAJISONOZAKI TOMOKAZU
    • F16C17/02F16C33/10
    • F16C23/041F16C33/103F16C33/104F16C2240/40F16C2240/50F16C2380/27Y10S384/902
    • PROBLEM TO BE SOLVED: To relieve stress concentration on the bearing surface of an oil-retaining sintered bearing by avoiding a local slidable movement between the oil-retaining sintered bearing and a shaft.
      SOLUTION: In this oil-retaining sintered bearing 1 having, on its inner periphery, the bearing surface 1a in slidable contact with the outer peripheral surface 22a of the shaft 22, crowning parts 1c are formed at the axial both end parts of the bearing surface 1a, each crowning part 1c is formed in such a shape that meets the requirements of 1.75×10
      -3 ≤γ/b1≤5.2×10
      -2 , 1.75×10
      -3 ≤γ/b2≤5.2×10
      -2 , and 0.2≤(b1+b2)/a≤0.8 where γ is the maximum value of a radial drop amount at the crowning part 1c of γ, b1 is the axial length of the crowning part 1c at the axial one end, b2 is the axial length of the crowning part 1c on the axial other end, and a is the axial overall length of the oil-retaining sintered bearing.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:通过避免在保油烧结轴承和轴之间的局部可滑动运动来减轻保油烧结轴承的轴承表面上的应力集中。 解决方案:在该保油烧结轴承1中,在其内周上具有与轴22的外周面22a滑动接触的轴承面1a,凸出部1c形成在轴向两端部 支承面1a,每个隆起部分1c形成为满足1.75×10 -3 ≤γ/b1≤5.2×10 -2 的要求的形状, 1.75×10 -3 ≤γ/b2≤5.2×10 -2 ,0.2≤(b1 + b2)/a≤0.8其中γ是a γ的凸部1c的径向下落量b1是轴向一端的隆起部1c的轴向长度,b2是轴向另一端的隆起部1c的轴向长度,a是轴向全长 的保油烧结轴承。 版权所有(C)2006,JPO&NCIPI
    • 7. 发明专利
    • Vehicle wheel bearing device
    • 车轮轴承装置
    • JP2011241938A
    • 2011-12-01
    • JP2010115965
    • 2010-05-20
    • Ntn CorpNtn株式会社
    • KOMORI KAZUO
    • F16C33/64B60B35/18F16C19/18
    • F16C19/08B60B35/18B60B2310/234B60B2380/12B60B2380/73B60B2380/75B60B2900/133B60B2900/321F16C19/184F16C23/041F16C33/585F16C33/64F16C2240/30F16C2240/34F16C2240/80F16C2326/02
    • PROBLEM TO BE SOLVED: To provide a vehicle wheel bearing device that prevents edge loading of the osculating ellipse of a ball, and that extends service life and improves acoustic characteristics.SOLUTION: In the vehicle wheel bearing device, which is configured from a double-row angular ball bearing, the shoulder height of shoulders 18 of an outer member 12 is set in the range of 0.35-0.50 times the ball diameter in the double-row of balls 14; the corners 19 of the shoulders 18 are each configured from a flank 19a that is a straight line that is tangential to an outer rolling surface 12a, and a chamfered section 19b that is rounded in an arc having a predetermined curvature radius r; by means of a formed grindstone that shapes the double-row of outer rolling surfaces 12a, the corners 19 are formed at that same time, and are formed smoothly and continuously from each outer rolling surface 12a; and the length h in the radial direction of the flank 19a is set to be at least 0.2 mm.
    • 要解决的问题:提供一种防止球的切割椭圆的边缘加载并延长使用寿命并改善声学特性的车轮轴承装置。 解决方案:在由双列角球轴承构成的车轮轴承装置中,外部构件12的肩部18的肩部高度被设定在球体直径的0.35-0.50倍的范围内 双排球14; 肩部18的角部19分别由与外侧滚动面12a相切的直线的侧面19a和具有规定的曲率半径r的弧形的倒角部19b构成。 通过形成双列外滚动表面12a的成形磨石,同时形成角部19,并且从每个外滚动表面12a平滑且连续地形成; 并且侧面19a的径向方向上的长度h设定为至少0.2mm。 版权所有(C)2012,JPO&INPIT
    • 8. 发明专利
    • Sliding bearing
    • 滑动轴承
    • JP2008144932A
    • 2008-06-26
    • JP2006335794
    • 2006-12-13
    • Taiho Kogyo Co Ltd大豊工業株式会社
    • KONDO TAKUTAGUCHI YUKIYASUMIYAHARA NORIO
    • F16C17/02F16C9/04
    • F16C23/041F16C9/04F16C17/022F16C2240/40F16C2240/50
    • PROBLEM TO BE SOLVED: To prevent uneven contact, fatigue and seizure of a sliding contact surface.
      SOLUTION: Both connecting rods 5, 6 are attached adjacently to the crank pin 3 of a crankshaft 1, and sliding bearings 4 are mounted on the connecting rods 5, 6. Each sliding bearing 4 is composed of an upper member 11 and a lower member 12 and is formed into a cylindrical shape. The sliding contact surface 4A of the left sliding bearing 4 in the upper member 11 is formed with a crowning 4B in a region on one axial end side (left side). The sliding contact surface 4A of the right sliding bearing 4 in the upper member 11 is formed with a crowning 4B in a region on the other axial end side (right side).
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了防止滑动接触表面的不均匀接触,疲劳和咬住。

      解决方案:两个连杆5,6相邻地连接到曲轴1的曲柄销3,并且滑动轴承4安装在连接杆5,6上。每个滑动轴承4由上部构件11和 下部构件12形成为圆筒状。 上部构件11中的左滑动轴承4的滑动接触表面4A在一个轴向端侧(左侧)的区域中形成有隆起部4B。 上部构件11中的右滑动轴承4的滑动接触表面4A在另一个轴向端侧(右侧)的区域中形成有隆起部4B。 版权所有(C)2008,JPO&INPIT

    • 10. 发明专利
    • Track roller assembly of working machine
    • 轨道车轮组装机
    • JP2006219127A
    • 2006-08-24
    • JP2006035614
    • 2006-02-13
    • Caterpillar Incキャタピラー インコーポレイテッドCaterpillar Incorporated
    • OERTLEY THOMAS E
    • B62D55/15F16C17/10F16C33/08
    • F16C23/041B62D55/15
    • PROBLEM TO BE SOLVED: To provide a track roller assembly of a working machine.
      SOLUTION: This track type working machine includes: a roller frame; and a track extended in the periphery of the roller frame. The track roller is mounted along the roller frame to be rotatable with respect to the track. The track roller is rotatably supported by a bearing including a shaft extended in the track roller and at least one sleeve rotatable around the shaft. At least one of a sleeve and the track roller includes a crown for transmitting the load. Further, according to this method of reducing the load of the edge of the track roller bearing, at least partially a crown is given to the rotatable sleeve of the bearing to transmit the selected load on the bearing toward the center thereof.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供工作机械的滚轮组件。

      解决方案:该履带式加工机包括:滚轮架; 以及在滚子框架的周边延伸的轨道。 履带辊沿着滚轮架被安装成可相对于履带旋转。 履带辊由包括在履带辊中延伸的轴的轴承和可围绕轴旋转的至少一个套筒可旋转地支撑。 套筒和履带辊中的至少一个包括用于传递负载的表冠。 此外,根据这种减小滚子轴承的边缘的载荷的方法,至少部分地将冠部提供给轴承的可旋转套筒,以将轴承上的所选载荷朝向其中心传递。 版权所有(C)2006,JPO&NCIPI