CN107795652A - 红外热成像系统的圆柱凸轮传动结构 - Google Patents

红外热成像系统的圆柱凸轮传动结构 Download PDF

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CN107795652A
CN107795652A CN201711155259.3A CN201711155259A CN107795652A CN 107795652 A CN107795652 A CN 107795652A CN 201711155259 A CN201711155259 A CN 201711155259A CN 107795652 A CN107795652 A CN 107795652A
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bearing
cam
cylinder
picture frame
cylinder external
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张辉
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BEIJING CHANGFENG KEWEI PHOTOELECTRIC TECHNOLOGY Co Ltd
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BEIJING CHANGFENG KEWEI PHOTOELECTRIC TECHNOLOGY Co Ltd
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Priority to CN201711155259.3A priority Critical patent/CN107795652A/zh
Publication of CN107795652A publication Critical patent/CN107795652A/zh
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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
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/08—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion
    • F16H25/12—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for interconverting rotary motion and reciprocating motion with reciprocation along the axis of rotation, e.g. gearings with helical grooves and automatic reversal or cams
    • 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
    • F16H—GEARING
    • F16H53/00—Cams ; Non-rotary cams; or cam-followers, e.g. rollers for gearing mechanisms
    • F16H53/08—Multi-track cams, e.g. for cycles consisting of several revolutions; Cam-followers specially adapted for such cams
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/02—Constructional details
    • G01J5/0205—Mechanical elements; Supports for optical elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J2005/0077—Imaging

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Transmission Devices (AREA)

Abstract

一种红外热成像系统的圆柱凸轮传动结构，包括圆柱外凸轮、圆柱内凸轮、导向柱、镜框，圆柱外凸轮上设有曲线凹槽，镜框位于圆柱外凸轮内，圆柱内凸轮一端套装圆柱外凸轮内并与镜框固定，导向柱前端与所述镜框螺接，后端位于圆柱外凸轮的曲线凹槽内；导向柱上套装有第一轴承和第二轴承，所述第一轴承与圆柱外凸轮的曲线凹槽侧壁接触，第二轴承位于第一轴承的下方，第一轴承与第二轴承之间、第二轴承与镜框之间分别设有轴承垫片。

Description

红外热成像系统的圆柱凸轮传动结构
技术领域
本发明属于红外热成像技术领域，涉及一种红外热成像系统的圆柱凸轮传动结构。
背景技术
圆柱凸轮传动结构在红外热成像技术领域应用比较广泛。圆柱凸轮机构的传动特点是结构简单、紧凑、设计方便、可实现从动件任意预期运动，最适用于要求从动件作间歇运动的场合。通常的红外热成像系统所用的圆柱凸轮系统的结构如图1、图2所示，主要包括圆柱外凸轮1，圆柱外凸轮1上设有曲线凹槽2，导向柱3的前端与镜框4螺接固定，后端位于圆柱外凸轮的曲线凹槽中，圆柱内凸轮5前端套装在圆柱外凸轮中。通过电机带动圆柱外凸轮1旋转，使导向柱3沿圆柱外凸轮的曲线凹槽2滑动，导向柱3带动镜框4运动。由于导向柱与圆柱凸轮相对运动时存在滑动摩擦，摩擦力较大，需要电机的输出力矩比较大；较大的摩擦力导致部件容易磨损，还会产生碎屑，影响光学系统的精度和使用寿命。
发明内容
本发明的目的是针对上述问题，改进红外热成像系统现有的圆柱凸轮传动结构，减小圆柱凸轮在转动的过程中与导向柱之间的摩擦力。
本发明的技术方案如下：
一种红外热成像系统的圆柱凸轮传动结构，包括圆柱外凸轮、圆柱内凸轮、导向柱、镜框，圆柱外凸轮上设有曲线凹槽，镜框位于圆柱外凸轮内，圆柱内凸轮一端套装圆柱外凸轮内并与镜框固定，导向柱前端与所述镜框螺接，后端位于圆柱外凸轮的曲线凹槽内，其特征在于：所述导向柱上套装有第一轴承和第二轴承，所述第一轴承与圆柱外凸轮的曲线凹槽侧壁接触，第二轴承位于第一轴承的下方，第一轴承与第二轴承之间、第二轴承与镜框之间分别设有轴承垫片。
本发明将圆柱凸轮与导向柱间的滑动摩擦改为滚动摩擦，摩擦力大大减小，需要电机输出力矩减小，相应功率的减少。部件间的磨损度大大减轻，不仅提高了系统使用寿命，.红外设备的精度、稳定性也相应提高。
附图说明
图1是现有圆柱凸轮传动机构的剖视结构示意图；
图2是现有圆柱凸轮传动机构的外部结构示意图；
图3是本发明的圆柱凸轮传动机构的剖视结构示意图；
图4是本发明的圆柱凸轮传动机构的外部结构示意图。
具体实施方式
如图3、图4所示，本发明改进的红外热成像系统的圆柱凸轮传动结构，包括圆柱外凸轮1、圆柱内凸轮5、导向柱3、镜框4，圆柱外凸轮上设有曲线凹槽2，镜框4位于圆柱外凸轮内，圆柱内凸轮5一端套装圆柱外凸轮1内并与镜框4固定，导向柱3前端与所述镜框4螺接，后端位于圆柱外凸轮的曲线凹槽2内，导向柱3上套装有第一轴承6和第二轴承7，所述第一轴承6与圆柱外凸轮的曲线凹槽2侧壁接触，第二轴7承位于第一轴承6的下方、圆柱外凸轮和镜框之间，第一轴承6与第二轴承7之间、第二轴承7与镜框4之间分别设有轴承垫片8。
本发明工作时，电机带动圆柱外凸轮1转动，使导向柱3沿圆柱外凸轮上的曲线凹槽2运动。导向柱3带动镜框4及圆柱内凸轮5转动。由于导向柱3上套装的第一轴承6与圆柱外凸轮上的曲线凹槽侧壁接触，二者之间产生的是主要是滚动摩擦，摩擦阻力很小，电机输出很小的力矩就能够带动整个系统运转。轴承垫片8主要是防止第一轴承与第二轴承之间、第二轴承与镜框之间的直接接触，减小摩擦力，降低磨损。

Claims (1)

1.一种红外热成像系统的圆柱凸轮传动结构，包括圆柱外凸轮、圆柱内凸轮、导向柱、镜框，圆柱外凸轮上设有曲线凹槽，镜框位于圆柱外凸轮内，圆柱内凸轮一端套装圆柱外凸轮内并与镜框固定，导向柱前端与所述镜框螺接，后端位于圆柱外凸轮的曲线凹槽内，其特征在于：所述导向柱上套装有第一轴承和第二轴承，所述第一轴承与圆柱外凸轮的曲线凹槽侧壁接触，第二轴承位于第一轴承的下方，第一轴承与第二轴承之间、第二轴承与镜框之间分别设有轴承垫片。
CN201711155259.3A 2017-11-17 2017-11-17 红外热成像系统的圆柱凸轮传动结构 Pending CN107795652A (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548471A (en) * 1982-10-16 1985-10-22 Ernst Leitz Wetzlar Gmbh Adjusting device for lenses
JPH08248287A (ja) * 1995-03-14 1996-09-27 Olympus Optical Co Ltd ズームレンズ鏡筒
US20020092371A1 (en) * 2000-10-27 2002-07-18 Masaki Nakakado Cam device
JP2005202316A (ja) * 2004-01-19 2005-07-28 Matsushita Electric Ind Co Ltd 中空モータ一体型レンズ鏡筒
JP2008224949A (ja) * 2007-03-12 2008-09-25 Nidec Copal Corp レンズ鏡胴
CN207539286U (zh) * 2017-11-17 2018-06-26 北京长峰科威光电技术有限公司 红外热成像系统的圆柱凸轮传动结构

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4548471A (en) * 1982-10-16 1985-10-22 Ernst Leitz Wetzlar Gmbh Adjusting device for lenses
JPH08248287A (ja) * 1995-03-14 1996-09-27 Olympus Optical Co Ltd ズームレンズ鏡筒
US20020092371A1 (en) * 2000-10-27 2002-07-18 Masaki Nakakado Cam device
JP2005202316A (ja) * 2004-01-19 2005-07-28 Matsushita Electric Ind Co Ltd 中空モータ一体型レンズ鏡筒
JP2008224949A (ja) * 2007-03-12 2008-09-25 Nidec Copal Corp レンズ鏡胴
CN207539286U (zh) * 2017-11-17 2018-06-26 北京长峰科威光电技术有限公司 红外热成像系统的圆柱凸轮传动结构

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Application publication date: 20180313