CN110325753A - 轴承构件的安装结构及减速装置 - Google Patents
轴承构件的安装结构及减速装置 Download PDFInfo
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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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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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
- 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
- F16C19/34—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 both radial and axial load
- F16C19/36—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 both radial and axial load with a single row of rollers
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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
- 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
- F16C19/30—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 axial load mainly
- F16C19/32—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 axial load mainly for supporting the end face of a shaft or other member, e.g. footstep bearings
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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
- 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
- F16C19/34—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 both radial and axial load
- F16C19/36—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 both radial and axial load with a single row of rollers
- F16C19/361—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 both radial and axial load with a single row of rollers with cylindrical rollers
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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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/063—Fixing them on the shaft
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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
- F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
- F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
- F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
- F16C35/067—Fixing them in a housing
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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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
- F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
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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
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/039—Gearboxes for accommodating worm gears
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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
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/63—Gears with belts and pulleys
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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
- F16H57/00—General details of gearing
- F16H57/0018—Shaft assemblies for gearings
- F16H57/0025—Shaft assemblies for gearings with gearing elements rigidly connected to a shaft, e.g. securing gears or pulleys by specially adapted splines, keys or methods
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
本发明的目的在于提供一种能够实现装置整体的小型化及轻量化并有助于低成本化的轴承构件的安装结构。具备:轴承构件,其支承旋转轴;壳体构件,其安装有所述轴承构件;以及安装板,其与所述壳体构件一起在所述旋转轴的轴向上夹持所述轴承构件,所述安装板具备使对象构件安装于所述壳体构件的安装部,且所述安装板与所述对象构件一起在所述轴向上夹持所述壳体构件。
Description
技术领域
本发明涉及轴承构件的安装结构及具有该安装结构的减速装置,特别是,涉及能够实现装置整体的小型轻量化及低成本化的轴承构件的安装结构及减速装置。
背景技术
以往,作为将支承旋转的旋转轴的轴承构件安装于壳体构件等的方法,除了将轴承构件压入安装部分或在轴承构件上形成安装孔等并紧固固定在壳体构件等上的方法以外,如下述专利文献1所公开,已知将轴承构件的外圈及内圈分别由夹紧构件握持并固定的安装结构的等多种方法。
在先技术文献
专利文献
专利文献1:日本实开平5-18490号公报
发明内容
发明要解决的课题
但是,在专利文献1记载的轴承构件的安装结构中,为了将紧固螺栓紧固在外壳上,存在为了确保紧固螺栓的紧固力而外壳本身需要具有规定的强度而无法实现外壳的小型化或轻量化的问题。
另外,考虑在轴承构件上形成紧固孔以将轴承构件直接安装于壳体构件的结构,但在该情况下,轴承构件本身的成本升高且壳体构件也需要确保强度。因此,在采用这种构成的情况下,也存在难以实现装置整体的小型化或轻量化的问题。
本发明是为了解决上述课题而提出的,目的在于提供一种能够实现装置整体的小型化及轻量化并有助于低成本化的轴承构件的安装结构及具有该安装结构的减速装置。
用于解决课题的方案
本发明的轴承构件的安装结构的特征在于,具备:轴承构件,其支承旋转轴;壳体构件,其安装有所述轴承构件;以及安装板,其与所述壳体构件一起在所述旋转轴的轴向上夹持所述轴承构件,所述安装板具备使对象构件安装于所述壳体构件的安装部,且所述安装板与所述对象构件一起在所述轴向上夹持所述壳体构件。
另外,本发明的减速装置的特征在于,具备:轴承构件,其借助工作台构件支承旋转轴;壳体构件,其安装有所述轴承构件,所述壳体构件包括以能够旋转的方式安装的蜗杆轴和与所述蜗杆轴啮合的蜗轮,所述旋转轴伴随所述蜗轮的旋转而旋转;以及安装板,其与所述壳体构件一起在所述旋转轴的轴向上夹持所述轴承构件,所述安装板具备使对象构件安装于所述壳体构件的安装部,且所述安装板与所述对象构件一起在所述轴向上夹持所述壳体构件。
发明效果
根据本发明,由于安装轴承构件的安装板具有对象构件的安装部,因此在壳体构件由任意材质形成的情况下,均能够通过安装板可靠地安装轴承构件,同时实现壳体构件的小型化及轻量化并实现装置整体的低成本化。
附图说明
图1是本发明实施方式的减速装置的立体图。
图2是本发明实施方式的减速装置的分解图。
图3是图1中的A-A剖视图。
图4是示出本发明实施方式的减速装置安装有滚珠丝杠装置的状态的立体图。
图5是滚珠丝杠装置的立体图。
具体实施方式
以下参照附图说明具有本发明的轴承构件的安装结构的减速装置的实施方式。需要说明的是,以下实施方式并非限定各权利要求的发明,并且,并非实施方式中说明的特征组合的全部均为发明的解决方案所必需。
图1是本发明实施方式的减速装置的立体图,图2是本发明实施方式的减速装置的分解图,图3是图1中的A-A剖视图,图4是示出在本发明实施方式的减速装置上安装有滚珠丝杠装置的状态的立体图,图5是滚珠丝杠装置的立体图。
如图1所示,本实施方式的减速装置20通过来自驱动源的输入而使输入轴旋转,构成将该旋转向旋转轴51向传递的所谓直接传动(through drive)式减速装置。本实施方式的减速装置20例如安装并固定于对象构件10。
如图2所示,本实施方式的减速装置20包括输入来自未图示的电动马达等驱动源的旋转力的蜗杆轴22和外周形成有与该蜗杆轴22啮合的齿部的蜗轮23,这些构件收纳在壳体构件21的收纳部29中。壳体构件21若使用铝合金等轻量材料则能够实现减速装置20的小型化、轻量化,因此优选。
蜗杆轴22是外周形成有螺旋状齿部的构件,以旋转自如的方式插通在壳体构件21的蜗杆轴孔27中。蜗杆轴22的两端由蜗杆轴用轴承构件25、25以能够旋转的方式支承,由封堵板28、28保持以免从壳体构件21脱落。
蜗轮23在中心部安装有工作台构件24,蜗轮23及工作台构件24由通过安装板40及保持板26安装于壳体构件21的轴承构件30以能够旋转的方式支承。需要说明的是,安装板40优选由例如铁或钢等材料强度高于上述壳体构件21使用的材料形成。
工作台构件24形成有插通在蜗轮23的中心孔中的蜗轮安装部61、直径形成为小于该蜗轮安装部61的轴承构件安装部62和直径形成为小于该轴承构件安装部62且在外周形成有螺纹槽的形成的保持板安装部63,通过工作台紧固螺栓24a与组装在蜗轮安装部61上的蜗轮23紧固。另外,工作台构件24形成有供旋转轴51插通的旋转轴用贯通孔24c。按照上述方式,通过在工作台构件24上形成有供旋转轴插通的旋转轴用贯通孔24c,从而安装于轴承构件安装部62的轴承构件30将旋转轴51以能够旋转的方式支承。
如图3所示,轴承构件30在形成于外圈31的V字形状的辊滚行部与形成于内圈32上的V字形状的辊滚行部之间夹设多个圆筒状的滚动体33,邻接的滚动体33的旋转轴构成以相互正交的方式排列的所谓交叉滚子轴承。轴承构件30使用交叉滚子轴承,从而能够以一个轴承构件承担径向载荷、轴向载荷及力矩载荷等多个方向的载荷。
接下来,说明本实施方式的减速装置20中的轴承构件30的安装结构。首先,将轴承构件30插入壳体构件21中,通过安装板40将轴承构件30的外圈31在轴向上固定。进而,将安装有蜗轮23的工作台构件24插入轴承构件30中,并在将工作台构件24的轴承构件安装部62组装到轴承构件30的内圈32上之后,将保持板26紧固到在保持板安装部63上形成的螺纹槽中,从而通过将内圈32由与蜗轮安装部61的层差和保持板26夹持并固定。
接下来,轴承构件30的外圈31由安装板40和对象构件10与壳体构件21一起在旋转轴的轴向上夹持固定。详细来说,如图2所示,安装板40借助第二安装部42利用临时紧固螺栓44固定在壳体构件21上,从而将轴承构件30安装在壳体构件21上。需要说明的是,该临时紧固螺栓44为了进行保持板40的安装部41的定位而被紧固,以便于在后述的对象构件10与减速装置20的安装作业时容易进行安装板紧固螺栓43的组装,只要能够进行安装部41的定位,可以不使用临时紧固螺栓44。
并且,如图3所示,在将减速装置20向对象构件10安装时,通过安装板紧固螺栓43进行对象构件10与减速装置20的安装。此时,该安装板紧固螺栓43构成为与在安装板40上形成的安装部41螺合。另外,安装板40由材料强度高于壳体构件21的材料构成,因此在壳体构件21使用轻量铝合金等实现了轻量化的情况下,也能够确保与对象构件10的组装强度。
按照上述方式,根据本实施方式的减速装置20的轴承构件30的安装结构,由于能够兼顾安装板40向轴承构件30的固定和对象构件10的安装,因此能够以轻量材料构成壳体构件21,能够谋求装置整体的小型化及轻量化。此外,无需在轴承构件30本身形成安装用的紧固孔等,且无需改造就能够使用以往使用轴承构件30,因此还有助于低成本化。
另外,根据本实施方式的减速装置20的轴承构件30的安装结构,能够承担旋转轴51的径向载荷、轴向载荷及力矩载荷等多个方向的载荷,因此无需对应于多种载荷设置多个轴承构件30,因此能够谋求减速装置20的小型化、轻量化。
如图4所示,在旋转轴51插通到工作台构件24的旋转轴用贯通孔24c中之后,将旋转轴51的轴端使用旋转轴紧固螺母24b固定。需要说明的是,本实施方式的减速装置20作为旋转轴51使用滚珠丝杠装置50的螺纹轴。按照上述方式,旋转轴51的轴端固定于安装有轴承构件30的工作台构件24,因此不需要旋转轴51与轴承构件30进行轴对准,能够使组装容易,且有助于减速装置20的低成本化。
如图5所示,滚珠丝杠装置50在外周面以规定的凸嵌(reed)形成未图示的螺旋状的滚动体滚行槽,并且,具有沿轴线方向延伸形成的作为旋转轴51的螺纹轴,和形成有供该旋转轴51贯通的贯通孔并形成为圆筒状的螺母构件52,该螺母构件52在贯通孔的内周面形成有与在旋转轴51上形成的滚动体滚行槽相对的负荷滚动体滚行槽,在滚动体滚行槽与负荷滚动体滚行槽之间排列多个未图示的滚动体,旋转轴51与螺母构件52螺合。
按照这种方式构成的滚珠丝杠装置50构成为,通过使旋转轴51旋转,从而使与旋转轴51螺合的螺母构件52沿旋转轴51的轴线方向运动。在本实施方式的减速装置20中,由于通过来自驱动源的输入使旋转轴51旋转,因此例如还能够作为用于使螺母构件52升降驱动的致动器使用。
需要说明的是,在旋转轴51的插通在工作台构件24中的部位形成有键部51a。该键部51a如图3所示,通过与在旋转轴用贯通孔24c的内周面上形成的键槽51b卡合,从而将旋转轴51相对于工作台构件24无相对轴旋转地固定。
需要说明的是,本发明不限于上述实施方式,能够在不变更本发明要旨的范围内实施多种变更。例如,在本实施方式的减速装置20中,说明了以铝合金构成壳体构件21的情况,但也可以由合成树脂等形成壳体构件21。
另外,对旋转轴51使用滚珠丝杠装置50的螺纹轴的情况进行了说明,但旋转轴不限于此,可以使用任意旋转轴。此外,本实施方式的减速装置使蜗杆轴22与蜗轮23啮合,因此是难以从蜗轮23向蜗杆轴22传递旋转的结构,但也可以设置防止来自蜗轮23的反输入的反输入防止机构。实施了上述变更或改良的方式也包含在本发明的技术范围内,这一点根据权利要求书的记载可以明确。
附图标记说明:
10对象构件,21壳体构件,22蜗杆轴,23蜗轮,24工作台构件,26保持板,30轴承构件,31外圈,32内圈,40安装板,41安装部,51旋转轴。
Claims (6)
1.一种轴承构件的安装结构,其特征在于,具备:
轴承构件,其支承旋转轴;
壳体构件,其安装有所述轴承构件;以及
安装板,其与所述壳体构件一起在所述旋转轴的轴向上夹持所述轴承构件,
所述安装板具备使对象构件安装于所述壳体构件的安装部,且所述安装板与所述对象构件一起在所述轴向上夹持所述壳体构件。
2.根据权利要求1所述的轴承构件的安装结构,其特征在于,
所述轴承构件的材料强度高于所述壳体构件的拉伸强度。
3.根据权利要求1或2所述的轴承构件的安装结构,其特征在于,
所述壳体构件包括以能够旋转的方式安装的蜗杆轴和与所述蜗杆轴啮合的蜗轮,所述旋转轴伴随所述蜗轮的旋转而旋转。
4.根据权利要求1至3中任一项所述的轴承构件的安装结构,其特征在于,
所述旋转轴的轴端插通于安装所述蜗轮的工作台构件并固定。
5.根据权利要求4所述的轴承构件的安装结构,其特征在于,
所述轴承构件的外圈由所述安装板和所述壳体构件夹持,
所述轴承构件的内圈由所述工作台构件和紧固于所述工作台构件的保持板夹持。
6.一种减速装置,其特征在于,具备:
轴承构件,其借助工作台构件支承旋转轴;
壳体构件,其安装有所述轴承构件,所述壳体构件包括以能够旋转的方式安装的蜗杆轴和与所述蜗杆轴啮合的蜗轮,所述旋转轴伴随所述蜗轮的旋转而旋转;以及
安装板,其与所述壳体构件一起在所述旋转轴的轴向上夹持所述轴承构件,
所述安装板具备使对象构件安装于所述壳体构件的安装部,且所述安装板与所述对象构件一起在所述轴向上夹持所述壳体构件。
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