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    • 2. 发明授权
    • Spring-actuated electromagnetic brake with noise suppressing device
    • 具有噪声抑制装置的弹簧式电磁制动器
    • US6155386A
    • 2000-12-05
    • US474156
    • 1999-12-29
    • Tatsuya HiraiKenshi SuzukiTakaaki TsudaMasatoshi Sonoda
    • Tatsuya HiraiKenshi SuzukiTakaaki TsudaMasatoshi Sonoda
    • F16D55/06F16D55/02F16D65/00F16D65/14F16D65/18B60L7/00B60T13/04F16D19/00
    • F16D55/02F16D65/0006F16D2065/1332F16D2121/22
    • A spring-actuated electromagnetic brake includes an adjustment plate attached a rotating shaft and having an annular recess in one end face thereof facing a boss of a brake plate slidably mounted on the rotating plate. An annular elastic member is disposed in the annular recess in such a manner that when the brake is in the released state, the elastic member partially projects from the recess and is in contact with an end face of the boss. A slide-distance adjustment bolt having an enlarged head and a thread-free shank of a length larger than the thickness of the adjustment plate extends through an opening of the adjustment plate and is threaded on the end face of the boss. The brake plate is slidable in one direction by the force of the brake spring and in the opposite direction by the recovery force of the elastic member. The range of sliding movement of the brake plate is determined by the difference between the length of the shank of the bolt and the thickness of the adjustment plate. The gap provided between the armature and the lining when the brake is in the released state is smaller than the gap provided between the field and the armature when the brake is in the engaged state, so that a striking noise generated when the armature strikes against the lining by the force of brake springs is reduced correspondingly.
    • 弹簧驱动的电磁制动器包括安装有旋转轴的调节板,并且在其一个端面中具有环形凹部,该环形凹槽面向可滑动地安装在旋转板上的制动板的凸台。 环形弹性构件以这样的方式设置在环形凹部中,使得当制动器处于释放状态时,弹性构件从凹部部分地突出并与凸台的端面接触。 具有扩大头部的滑动距离调节螺栓和长度大于调节板厚度的无螺纹柄延伸穿过调节板的开口并且螺纹连接在凸台的端面上。 制动板可以通过制动弹簧的力沿一个方向滑动,并且通过弹性构件的回复力沿相反方向滑动。 制动板的滑动范围由螺栓的柄部的长度与调整板的厚度之差决定。 当制动器处于释放状态时,在电枢和衬里之间提供的间隙小于当制动器处于接合状态时在电场和电枢之间提供的间隙,使得当电枢撞击 制动弹簧力的衬里相应减少。
    • 4. 发明授权
    • Anti-friction bearing and method for fabricating anti-friction & bearing
    • 抗摩擦轴承和制造抗摩擦轴承的方法
    • US06491768B1
    • 2002-12-10
    • US09522685
    • 2000-03-10
    • Tokushichi FurutaShigenori HoyaTakaaki TsudaYutaka Daikuhara
    • Tokushichi FurutaShigenori HoyaTakaaki TsudaYutaka Daikuhara
    • C12D936
    • C21D9/40C21D9/36C21D2211/008C22C38/38F16C33/30Y10S148/906Y10S384/912
    • A bearing and a method for fabricating a bearing. The bearing is intended to be used in office automation equipment and the like is improved in impact resistance and load capacity. Its rotational accuracy will not deteriorate in long-term use and its quietness can be maintained over a long period of time. The bearing is an anti-friction bearing located between portions supporting a load and in relative motion to each other. The anti-friction bearing has an outer ring of 30 mm or less in diameter, in which high carbon chromium bearing steel constituting the anti-friction bearing includes the following compositions: C of 0.90-1.30 wt %, Si of 0.40-1.20 wt %, Mn of 0.90-1.0 wt %, and Cr of 0.90-1.70 wt %. After quenching, the tempering temperature used for this bearing is maintained in the range of 170° C. and 250° C. so that the amount of retained austenite in the surface layer after heat treatment is stabilized at 6 by volume or less.
    • 轴承和轴承的制造方法。 该轴承旨在用于办公自动化设备等中,提高了耐冲击性和负载能力。 其旋转精度在长期使用中不会变差,并且可以长时间保持其安静性。 轴承是位于支撑负载并相对于彼此运动的部分之间的抗摩擦轴承。 该抗摩擦轴承具有直径为30mm以下的外圈,其中构成抗摩擦轴承的高碳铬轴承钢包括以下组成:C为0.90-1.30wt%,Si为0.40-1.20wt% ,Mn为0.90〜1.0重量%,Cr为0.90〜1.70重量%。 淬火后,用于该轴承的回火温度保持在170℃和250℃的范围内,使得热处理后的表面层中的残余奥氏体的量稳定在6体积%以下。