CN204437042U - 一种曲轴轴承 - Google Patents

一种曲轴轴承 Download PDF

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Publication number
CN204437042U
CN204437042U CN201420845437.0U CN201420845437U CN204437042U CN 204437042 U CN204437042 U CN 204437042U CN 201420845437 U CN201420845437 U CN 201420845437U CN 204437042 U CN204437042 U CN 204437042U
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China
Prior art keywords
bent axle
bearing
inner race
crankshaft
bearing inner
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CN201420845437.0U
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Inventor
李兴贤
耿康
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WUXI LIJUN BEARING CO Ltd
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WUXI LIJUN BEARING 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
    • F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
    • F16C9/02—Crankshaft 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
    • F16C33/581—Raceways; Race rings integral with other parts, e.g. with housings or machine elements such as shafts or gear wheels
    • 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
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
    • F16C3/06—Crankshafts
    • F16C3/08—Crankshafts made in one piece

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Pumps (AREA)

Abstract

本实用新型公布了一种曲轴轴承，用于汽车涡旋式空调压缩机，包括轴承外圈、保持架、轴承内圈和钢球，其特征在于：所述轴承内圈为外圆表面具有弧形沟道的曲轴。本实用新型取消了轴承内圈，将曲轴改进成轴承内圈与曲轴的组合体，由于沟道直接加工在曲轴上，其加工基准为曲轴的轴线，极大的减少了部件的径向跳动，从而大大提高了部件的旋转精度。由于优化了整个部件的设计，体积大为减小。在传动力矩不变的情况下使压缩机的优化设计成为可能。优化后的压缩机体积小，动力大，为紧凑的汽车装配节约宝贵的空间。

Description

一种曲轴轴承
技术领域
本实用新型涉及一种曲轴轴承。
背景技术
主轴承和曲轴为汽车涡旋式空调压缩机的核心零部件，该压缩机常规设计由主轴承与曲轴装配形成主运动副，完成压缩机主力矩的传动。由于轴承及曲轴自身精度误差加上装配误差，很难保证部件的最终设计的运动精度，造成压缩机的早期失效。
发明内容
本实用新型目的在于结构简单、精度高的适用于汽车涡旋式空调压缩机的曲轴轴承。
本实用新型为实现上述目的，采用如下技术方案：
一种曲轴轴承，用于汽车涡旋式空调压缩机，包括轴承外圈、保持架、轴承内圈和钢球，其特征在于：所述轴承内圈为外圆表面具有弧形沟道的曲轴。
其进一步特征在于：所述曲轴两端分别具有两根轴，所述两根轴轴心不同心。
进一步的：所述曲轴一端的长轴与轴承外圈同心，所述曲轴一端的短轴轴心偏离轴承外圈轴心。
所述曲轴的短轴与汽车涡旋式空调压缩机动盘相连接，偏心运动带动压缩机动盘在渐开线规迹作用下吸、排气；所述曲轴的长轴具有多级台阶，颈部用于安装辅助轴承，用于支撑曲轴，头部具有花键，用于传递力矩。
优选的：所述保持架为PA66-GF25尼龙保持架。该保持架与钢板冲压浪形保持架相比优势在于：耐摩擦摩损，轴承温升小、自润滑性能优异、韧性好，耐冲击，抗断裂性强、缓震性好，轴承噪声低、耐酸，耐腐蚀等。由于这项改进使整套部件运转更平稳，噪音更低。
本实用新型取消了轴承内圈，将曲轴改进成轴承内圈与曲轴的组合体，由于沟道直接加工在曲轴上，其加工基准为曲轴的轴线，极大的减少了部件的径向跳动，从而大大提高了部件的旋转精度。由于优化了整个部件的设计，体积大为减小。在传动力矩不变的情况下使压缩机的优化设计成为可能。优化后的压缩机体积小，动力大，为紧凑的汽车装配节约宝贵的空间。
附图说明
图 1 为本实用新型结构示意图。
图2为本实用新型曲轴结构示意图。
具体实施方式
如图1、2所示一种曲轴轴承，包括轴承外圈1、保持架3、轴承内圈和钢球4，所述轴承内圈为外圆表面具有弧形沟道的曲轴2。所述曲轴2一端的长轴22与轴承外圈1同心，所述曲轴2一端的短轴21轴心偏离轴承外圈1轴心。所述曲轴2的短轴21与汽车涡旋式空调压缩机动盘相连接，偏心运动带动压缩机动盘在渐开线规迹作用下吸、排气；所述曲轴的长轴具有多级台阶，颈部用于安装辅助轴承，用于支撑曲轴，头部具有花键，用于传递力矩。
所述保持架3为PA66-GF25尼龙保持架。该保持架与钢板冲压浪形保持架相比优势在于：耐摩擦摩损，轴承温升小、自润滑性能优异、韧性好，耐冲击，抗断裂性强、缓震性好，轴承噪声低、耐酸，耐腐蚀等。由于这项改进使整套部件运转更平稳，噪音更低。
本实用新型取消了轴承内圈，将曲轴改进成轴承内圈与曲轴的组合体，由于沟道直接加工在曲轴上，其加工基准为曲轴的轴线，极大的减少了部件的径向跳动，从而大大提高了部件的旋转精度。由于优化了整个部件的设计，体积大为减小。在传动力矩不变的情况下使压缩机的优化设计成为可能。优化后的压缩机体积小，动力大，为紧凑的汽车装配节约宝贵的空间。

Claims (5)

1.一种曲轴轴承，用于汽车涡旋式空调压缩机，包括轴承外圈、保持架、轴承内圈和钢球，其特征在于：所述轴承内圈为外圆表面具有弧形沟道的曲轴。
2.根据权利要求1所述的曲轴轴承，其特征在于：所述曲轴两端分别具有两根轴，所述两根轴轴心不同心。
3.根据权利要求2所述的曲轴轴承，其特征在于：所述曲轴一端的长轴与轴承外圈同心，所述曲轴一端的短轴轴心偏离轴承外圈轴心。
4.根据权利要求3所述的曲轴轴承，其特征在于：所述曲轴的短轴与汽车涡旋式空调压缩机动盘相连接，偏心运动带动压缩机动盘在渐开线轨迹作用下吸、排气；所述曲轴的长轴具有多级台阶，颈部用于安装辅助轴承，用于支撑曲轴，头部具有花键，用于传递力矩。
5.根据权利要求1-4任一项所述的曲轴轴承，其特征在于：所述保持架为PA66-GF25尼龙保持架。
CN201420845437.0U 2014-12-26 2014-12-26 一种曲轴轴承 Active CN204437042U (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104565009A (zh) * 2014-12-26 2015-04-29 无锡市利钧轴承有限公司 一种曲轴轴承

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104565009A (zh) * 2014-12-26 2015-04-29 无锡市利钧轴承有限公司 一种曲轴轴承

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