CN114635917A - 一种双循环式滚珠导向键 - Google Patents

一种双循环式滚珠导向键 Download PDF

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Publication number
CN114635917A
CN114635917A CN202210132358.4A CN202210132358A CN114635917A CN 114635917 A CN114635917 A CN 114635917A CN 202210132358 A CN202210132358 A CN 202210132358A CN 114635917 A CN114635917 A CN 114635917A
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guide key
key body
returning device
ball
end ball
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樊延都
陈寂
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Xi'an Hua Ou Precision Machinery Co ltd
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Xi'an Hua Ou Precision Machinery Co ltd
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    • 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
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/063—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body, e.g. a carriage or part thereof, provided between the legs of a U-shaped guide rail or track
    • 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
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/0678—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body, i.e. the body carrying the circulating rolling elements, provided in the interior of a sleeve-like guide member defining the opposing raceways, e.g. in a telescopic shaft
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

本发明属于轴向导向装置领域，具体公开了一种双循环式滚珠导向键，包括左端回珠器、钢球、导向键体、右端回珠器；在导向键体上部两侧加工有两条滚动圆弧槽，相应地，导向键体下部两侧加工有两个通孔，导向键体左端安装左端回珠器，右端安装右端回珠器，左右两端回珠器通过紧固螺钉紧固在导向键体上，钢球通过导向键体上滚动圆弧槽、左端回珠器、右端回珠器及导向键体下部通孔进行往复循环滚动。由于导向和传递扭矩时都是靠钢球的滚动来实现，所以摩擦阻力很小，发热很少，不易磨损，使用寿命长，造用于快速移动导向的场合。

Description

一种双循环式滚珠导向键
技术领域
本发明属于轴向导向装置领域，具体涉及到一种双循环式滚珠结构的导向键。
背景技术
在目前常用的轴向导向装置，都采用平键在键槽内滑动来进行轴向导向，靠平键和键槽侧面的挤压来传递扭矩，摩擦阻力大，效率低，磨损快。而在一些要求速度很快的导向结构中，如一些高速电动推杆，快速电动缸，快移速度要求不小于1米/秒，这种结构中如果采用传统滑动平键来进行导向，发热很严重，磨损极快，寿命短，而且滑动摩擦噪声很大。
发明内容
本发明的目的是提供一种双循环式滚珠导向键，有效解决了现有滑动平键不适用于高速导向的问题。
本发明的技术方案是，一种双循环式滚珠导向键，包括钢球、导向键体；其特征是在导向键体上部两侧加工有两条滚动圆弧槽，相应地，导向键体下部两侧加工有两个通孔，导向键体左端安装左端回珠器，右端安装右端回珠器，左右两端回珠器通过紧固螺钉紧固在导向键体上，钢球通过导向键体上滚动圆弧槽、左端回珠器、右端回珠器及导向键体下部通孔进行往复循环滚动。
进一步地，导向键体上滚动圆弧槽中钢球装好后比导向键体高0.5mm，使上半部钢球露出来。
本发明具有以下有益效果：
本发明一种双循环式滚珠导向键，由于导向和传递扭矩时都是靠钢球的滚动来实现，所以摩擦阻力很小，发热很少，不易磨损，使用寿命长，造用于快速移动导向的场合。
附图说明
图1是本发明的双循环式滚珠导向键结构图。
图2是本发明双循环式滚珠导向键爆炸图。
图3是本发明双循环式滚珠导向键应用示意图。
附图标记说明：1-紧固螺钉；2-左端回珠器；3-钢球；4-导向键体；5-安装螺钉；6-右端回珠器；7-外套管；8-内滑套；9-导向槽。
具体实施方式
如图1、图2所示，本实施例提供的一种双循环式滚珠导向键，包括左端回珠器2，钢球3，导向键体4，右端回珠器6。在导向键体4上部两侧加工有两条滚动圆弧槽，相应地，导向键体4下部两侧加工有两个通孔，导向键体4左端安装左端回珠器2，右端安装右端回珠器6，左右两端回珠器通过紧固螺钉1紧固在导向键体4上，钢球3可以通过导向键体4上滚动圆弧槽、左端回珠器2、右端回珠器6及导向键体4下部通孔进行往复循环滚动，从而实现滚动导向和传递扭矩的功能。
使用时，双循环式滚珠导向键通过安装螺钉5固定在内滑套8相应的键槽内，外套管7加工相应的导向槽9，如图3所示，导向键体4上滚动圆弧槽中钢球装好后比导向键体高0.5mm，使上半部钢球露出来，导向键体滚动圆弧槽中的钢球3就在导向槽9内来回滚动时，导向键体4与导向槽9不接触。
以上所述，仅仅是本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本领域的技术人员在本发明披露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围内。

Claims (2)

1.一种双循环式滚珠导向键，包括钢球（3）、导向键体（4）；其特征是在导向键体（4）上部两侧加工有两条滚动圆弧槽，导向键体（4）下部两侧加工有两个通孔，导向键体（4）左端安装左端回珠器（2），右端安装右端回珠器（6），左右两端回珠器通过紧固螺钉（1）紧固在导向键体（4）上，钢球（3）通过导向键体上滚动圆弧槽、左端回珠器（2）、右端回珠器（6）及导向键体下部通孔进行往复循环滚动。
2.如权利要求1所述的一种双循环式滚珠导向键，其特征是导向键体上滚动圆弧槽中钢球装好后比导向键体（4）高0.5mm，使上半部钢球（3）露出来。
CN202210132358.4A 2022-02-14 2022-02-14 一种双循环式滚珠导向键 Withdrawn CN114635917A (zh)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06241228A (ja) * 1993-02-17 1994-08-30 Enomoto:Kk 直動機械要素
JP2002276657A (ja) * 2001-03-14 2002-09-25 Nissan Shatai Co Ltd リニアガイド装置
US20070223846A1 (en) * 2003-12-26 2007-09-27 Thk Co., Ltd. Ball spline
JP2009287741A (ja) * 2008-05-30 2009-12-10 Thk Co Ltd 運動案内装置及び運動案内装置を組み込んだアクチュエータ
CN203703032U (zh) * 2014-01-22 2014-07-09 四川工程职业技术学院 一种螺旋传动件
TWM557323U (zh) * 2017-07-26 2018-03-21 全球傳動科技股份有限公司 滾柱花鍵組
CN212131063U (zh) * 2020-05-09 2020-12-11 丽水市杰祥科技有限公司 一种具有润滑降噪功能的滑块
KR20210037282A (ko) * 2019-09-27 2021-04-06 서상연 볼가이드 엔드캡을 이용한 슬라이드실린더의 제조방법
CN213393388U (zh) * 2020-08-14 2021-06-08 西安华欧精密机械有限责任公司 一种带导向键槽的滚珠丝杠副

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06241228A (ja) * 1993-02-17 1994-08-30 Enomoto:Kk 直動機械要素
JP2002276657A (ja) * 2001-03-14 2002-09-25 Nissan Shatai Co Ltd リニアガイド装置
US20070223846A1 (en) * 2003-12-26 2007-09-27 Thk Co., Ltd. Ball spline
JP2009287741A (ja) * 2008-05-30 2009-12-10 Thk Co Ltd 運動案内装置及び運動案内装置を組み込んだアクチュエータ
CN203703032U (zh) * 2014-01-22 2014-07-09 四川工程职业技术学院 一种螺旋传动件
TWM557323U (zh) * 2017-07-26 2018-03-21 全球傳動科技股份有限公司 滾柱花鍵組
KR20210037282A (ko) * 2019-09-27 2021-04-06 서상연 볼가이드 엔드캡을 이용한 슬라이드실린더의 제조방법
CN212131063U (zh) * 2020-05-09 2020-12-11 丽水市杰祥科技有限公司 一种具有润滑降噪功能的滑块
CN213393388U (zh) * 2020-08-14 2021-06-08 西安华欧精密机械有限责任公司 一种带导向键槽的滚珠丝杠副

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Application publication date: 20220617