WO2015035844A1 - 一种曲沟球轴承 - Google Patents

一种曲沟球轴承 Download PDF

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Publication number
WO2015035844A1
WO2015035844A1 PCT/CN2014/084488 CN2014084488W WO2015035844A1 WO 2015035844 A1 WO2015035844 A1 WO 2015035844A1 CN 2014084488 W CN2014084488 W CN 2014084488W WO 2015035844 A1 WO2015035844 A1 WO 2015035844A1
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WO
WIPO (PCT)
Prior art keywords
steel balls
curved
inner ring
ball bearing
groove
Prior art date
Application number
PCT/CN2014/084488
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English (en)
French (fr)
Inventor
郭康权
史诺
郭贵生
鲁海霞
李星恕
尹莎莎
Original Assignee
西北农林科技大学
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Publication date
Application filed by 西北农林科技大学 filed Critical 西北农林科技大学
Publication of WO2015035844A1 publication Critical patent/WO2015035844A1/zh
Priority to US14/994,148 priority Critical patent/US9970484B2/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/583—Details of specific parts of races
    • F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/50—Other types of ball or roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/588—Races of sheet metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/24—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly
    • F16C19/26—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for radial load mainly with a single row of rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/20—Application independent of particular apparatuses related to type of movement
    • F16C2300/28—Reciprocating movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2310/00—Agricultural machines

Definitions

  • the present invention relates to a radial ball bearing device, which belongs to the field of general mechanical parts, and more particularly to a curved groove ball bearing.
  • a versatile bearing is a general-purpose mechanical part that is used to position a shaft-type part so that it can flexibly rotate but does not produce axial displacement.
  • a mechanism that requires axial displacement while rotating such as the movement of a squeeze roller, the use of a universal bearing will make the mechanism very complicated.
  • the present invention discloses a curved groove ball bearing.
  • the technical solution for realizing the above invention is: changing the linear groove of the inner and outer rings of the original bearing into a curved groove of completely symmetrical shape, and making the number of "peak” and “valley” of the curved groove equal to the number of steel balls , or an integral multiple of the number of steel balls, so that during the rotation of the inner and outer rings, the shaft will rotate periodically while performing a periodic reciprocating linear motion.
  • the specific content is:
  • a curved groove ball bearing comprising an outer ring 1, a set of steel balls 2, a set of cages 3 and an inner ring 4, characterized in that: the outer ring 1 and the inner ring 4 are inlaid with grooves of steel balls a slot, at least one of which is an "S"-shaped curved arc groove that is connected end to end, and the other is a linear arc groove or an "S"-shaped curved arc groove; the "S"-shaped curved arc
  • the number of "peaks" of the grooves and the number of "valleys" are equal to the number of sets of steel balls 2, or an integral multiple of two numbers of steel balls.
  • the spacing between the inner edges of the steel balls 2 and the "S"-shaped curved arc grooves of the inner ring 4 The pitch is equal; or the pitch of the "S" shaped circular arc groove is an integral multiple of the spacing between the inner edges of the steel ball 2.
  • the set of cages 3 has three structures: one is that the cage 3 is rigidly connected with the inner ring 4; the other is that the cage 3 is rigidly connected with the outer ring 1; the third is that the cage 3 is not It is rigidly connected to the inner ring 4, and is not rigidly connected to the outer ring 1, and remains free.
  • the end-to-end "S"-shaped curved arc groove, the adjacent two sections are curves or straight lines of completely symmetrical shape.
  • the rotary motion can be changed to a linear motion
  • Fig. 1 is a schematic view showing the shape of the outer ring of the curved arc groove after being unfolded.
  • Fig. 2 is a schematic view showing the shape of the inner ring of the linear arc groove after being unfolded.
  • Figure 3 is a schematic view showing the structure of the curved groove ball bearing when the inner ring is displaced to the left, that is, the steel ball is at the peak top.
  • Figure 4 is a schematic view showing the structure of the curved groove ball bearing when the inner ring is displaced to the right, that is, the steel ball is at the bottom of the valley. The meanings of the respective legends in the drawing are as follows:
  • Example 1 The outer ring 1 is formed into an S-shaped curved circular groove as shown in FIG. 1, and the inner ring 4 is formed into a linear circular groove as shown in FIG. 2, and the cage 3 and the inner ring 4 are fixedly rotated. And make the number of steel balls equal to the number of "peaks" and “valleys" of the curve.
  • the curved groove ball bearing thus produced is an actively oscillating curved groove ball bearing.
  • the cage 3 can also be configured in a free state, and the curved groove ball bearing of such a structure is a curved groove which is passively oscillated left and right as shown in FIGS. 3 and 4. Jack joint.
  • the actively oscillating curved groove ball bearing and the passively oscillating curved groove ball bearing are paired and installed, which can reduce the precision required for the installation position.
  • the inner ring 4 is formed into a curved circular groove
  • the outer ring 1 is formed into a linear circular groove
  • the cage 3 and the outer ring 4 are fixedly rotated, and the number of the steel balls and the "peak” and “valley of the curve” are made. "The number is equal.
  • the curved groove ball bearing thus produced is rotated in a straight line while rotating while the inner ring 4 is rotating.
  • the arc grooves of the outer ring 1 and the inner ring 4 are formed into a curved structure, and the cage 3 is made into a free state structure, which can increase the swing amplitude and at the same time reduce the accuracy of the mounting position when installed in pairs.
  • the curved groove ball bearing of the present invention can be used for a mechanism that requires axial swing while rotating, such as a swing mechanism, a squeeze mechanism, and the like. These institutions are often used in peeling and unhulling of agricultural products and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Bearings For Parts Moving Linearly (AREA)

Abstract

一种曲沟球轴承，由一个外圈（1）、一组钢球（2）、一组保持架（3）和一个内圈（4）构成，所述的外圈（1）和内圈（4）镶嵌钢球的沟槽，其中至少一个为首尾相接的"S"形曲线圆弧沟槽，另一个可为直线形圆弧沟槽或者"S"形曲线圆弧沟槽，所述的S形曲线圆弧沟槽的"峰"的个数和"谷"的个数都与一组钢球的个数相等，或者为钢球个数的整数倍。此结构使轴承在转动的同时，能够实现往复直线运动的位移，简化了揉搓辊的机械结构。

Description

一种曲沟球轴承
技术领域
本发明涉及一种向心球轴承装置， 属于通用机械零件领域， 具体来说涉及 一种曲沟球轴承。
背景技术
通用的轴承是用来定位轴类零件， 使其能够灵活转动， 但不能产生轴向位 移的通用机械零件。 但是对于需要在转动的同时， 能够进行轴向位移的机构， 如挤压揉搓辊的运动， 通用轴承的使用将使得机构变得非常复杂。
为了简化挤压揉搓辊的机械结构， 也为了将回转运动用更简单的方法变成 往复直线运动， 本发明公开一种曲沟球轴承。
发明内容
实现上述发明的技术方案是： 将原来轴承内外圈的直线沟槽变成形状完全 对称的曲线沟槽， 并使曲线沟槽的"峰"和"谷"的个数与钢球的个数相等， 或者为 钢球个数的整数倍， 这样， 在内外圈转动的过程中， 轴在转动的同时， 将做周 期性往复直线运动。 具体内容是：
一种曲沟球轴承， 由一个外圈 1、 一组钢球 2、 一组保持架 3和一个内圈 4 构成， 其特征是： 所述的外圈 1和内圈 4镶嵌钢球的沟槽， 其中至少一个为首 尾相接的" S"形曲线圆弧沟槽， 另一个为直线形圆弧沟槽或者" S"形曲线圆弧沟 槽； 所述的 "S"形曲线圆弧沟槽的"峰"的个数和"谷"的个数都与一组钢球 2的个 数相等， 或者为钢球 2个数的整数倍。
所述的一组钢球 2安装在外圈 1和内圈 4之间并用保持架 3固定以后， 钢 球 2的外沿之间的间距 （相邻两钢球之间的距离） 与外圈 1的" S"形曲线圆弧沟 槽的节距 （相邻两"峰"或两"谷"之间的距离） 相等； 或者" S"形曲线圆弧沟槽的 节距为钢球 2的外沿之间的间距的整数倍。
所述的一组钢球 2安装在外圈 1和内圈 4之间并用保持架 3固定以后， 钢 球 2的内沿之间的间距与内圈 4的" S"形曲线圆弧沟槽的节距相等；或者" S"形曲 线圆弧沟槽的节距为钢球 2的内沿之间的间距的整数倍。
所述的一组保持架 3有三种结构： 其一是保持架 3与内圈 4刚性连接在一 体； 其二是保持架 3与外圈 1刚性连接在一体； 其三是保持架 3即不与内圈 4 刚性连接， 也不与外圈 1刚性连接， 保持游离状态。
所述的首尾相接的" S"形曲线圆弧沟槽， 其相邻两节是形状完全对称的曲线 或直线。
本发明公开的曲沟球轴承有以下优点：
( 1 ) 可以将回转运动变为直线运动；
(2) 可以简化揉搓辊的机械结构；
(3 ) 结构简单， 体积小。
附图说明
图 1是曲线圆弧沟槽的外圈展开后的形状示意图。
图 2是直线圆弧沟槽的内圈展开后的形状示意图。
图 3是内圈位移到左边， 即钢珠在峰顶时的曲沟球轴承的结构示意图。 图 4是内圈位移到右边， 即钢珠在谷底时的曲沟球轴承的结构示意图。 附图中各图例标记分别表示的意义如下：
1 外圈， 2—钢珠， 3—保持架， 4 内圈， R—圆弧沟槽的半径， D—轴承 的外径， d 轴承的内径， B—轴承宽边的宽度， b 轴承的窄边的宽度。
具体实施方式
下面结合附图给出具体的实施例。
实施例 1 将外圈 1做成如图 1所示的 S形曲线圆弧沟槽， 将内圈 4做成如图 2所示 的直线圆弧沟槽， 保持架 3与内圈 4固定在一起转动， 并使钢珠的数目与曲线 的"峰"和"谷"的数目相等。 这样制作的曲沟球轴承为主动摆动的曲沟球轴承。 在内圈 4为直线沟槽的 曲沟球轴承中， 也可以将保持架 3 做成游离状态的结构， 这样结构的曲沟球轴 承为如图 3和图 4所示左右被动摆动的曲沟球轴承。 主动摆动的曲沟球轴承和 被动摆动的曲沟球轴承配对安装， 可以降低安装位置要求的精度。
实施例 2
将内圈 4做成曲线圆弧沟槽， 将外圈 1做成直线圆弧沟槽， 保持架 3与外 圈 4固定在一起转动， 并使钢珠的数目与曲线的"峰"和"谷"的数目相等。这样制 作的曲沟球轴承在转动过程中， 内圈 4在转动的同时， 作直线往复摆动。
实施例 3
将外圈 1和内圈 4的圆弧沟槽都做成曲线结构， 将保持架 3做成游离状态 的结构， 这样可以增加摆动幅度， 同时在成对安装时降低安装位置精度的要求。
这些原理相同， 结构上的改变都可以构成本发明的其他实施方式。
工业实用性
本发明的曲沟球轴承可以用于需要在转动的同时，完成轴向摆动的机构，如 摆动机构、 挤压揉搓机构等。 这些机构在农产品等的去皮、 脱壳等装置上经常 用到。

Claims

WO 2015/035844 +τ7 - . r -^· _μ. +>、 PCT/CN2014/084488 权 利 要 求 书
1. 一种曲沟球轴承， 由一个夕卜圈 [1]、 一组钢球 [2]、 一组保持架 [3]和一个内 圈 [4]构成， 其特征是： 所述的外圈 [1]和内圈 [4]镶嵌钢球的沟槽， 其中至少一个 为首尾相接的 "S"形曲线圆弧沟槽，另一个为直线形圆弧沟槽或者" S"形曲线圆弧 沟槽； 所述的 "S"形曲线圆弧沟槽的"峰"的个数和"谷"的个数都与一组钢球 [2]的 个数相等， 或者为钢球 [2]个数的整数倍。
2.根据权利要求 1所述的曲沟球轴承，其特征是：所述的一组钢球 [2]安装在 外圈 [1]和内圈 [4]之间并用保持架 [3]固定以后，钢球 [2]的外沿之间的间距即相邻 两钢球之间的距离与外圈 [1]的" S"形曲线圆弧沟槽的节距即相邻两"峰"或两"谷" 之间的距离相等； 或者" S"形曲线圆弧沟槽的节距为钢球 [2]的外沿之间的间距的 整数倍。
3.根据权利要求 1所述的曲沟球轴承，其特征是：所述的一组钢球 [2]安装在 外圈 [1]和内圈 [4]之间并用保持架 [3]固定以后，钢球 [2]的内沿之间的间距与内圈 [4]的" S"形曲线圆弧沟槽的节距相等； 或者" S"形曲线圆弧沟槽的节距为钢球 [2] 的内沿之间的间距的整数倍。
4.根据权利要求 1所述的曲沟球轴承，其特征是：所述的一组保持架 [3]为如 下三种结构之一：
保持架 [3]与内圈 [4]刚性连接在一体；
或保持架 [3]与外圈 [1]刚性连接在一体；
或保持架 [3]即不与内圈 [4]刚性连接， 也不与外圈 [1]刚性连接， 保持游离状 态。
5.根据权利要求 1所述的曲沟球轴承， 其特征是： 所述的首尾相接的" S"形 曲线圆弧沟槽， 其相邻两节是形状完全对称的曲线或直线。
PCT/CN2014/084488 2013-09-11 2014-08-15 一种曲沟球轴承 WO2015035844A1 (zh)

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CN103438104B (zh) * 2013-09-11 2016-08-17 西北农林科技大学 一种曲沟球轴承
CN104653618A (zh) * 2015-02-09 2015-05-27 西北农林科技大学 一种角接触曲沟球轴承
CN109458400B (zh) 2019-01-10 2023-01-10 西北农林科技大学 一种无保持架曲沟球轴承
CN113172397B (zh) * 2021-05-11 2022-08-16 中国航发哈尔滨轴承有限公司 使用车床分水冷却装置加工导轨轴承的方法

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CN103438104A (zh) * 2013-09-11 2013-12-11 西北农林科技大学 一种曲沟球轴承

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CN103438104A (zh) 2013-12-11
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US20160123395A1 (en) 2016-05-05

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