CN113122794A - 一种基于涂层紧固强化的云台 - Google Patents
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Abstract
本发明公开了一种基于涂层紧固强化的云台,包括底座和部分位于底座内、可多角度转动的球体,球体的露出部分上设有调节座,底座上设有用于旋紧后固定球体、阻止球体转动的紧固螺丝;球体和紧固螺丝的材质均为不锈钢;球体表面喷涂有粗糙的涂层,用于增大与紧固螺丝接触时的摩擦力,涂层的组成按重量百分比计为75%‑81.22%碳化钨加17.9%‑20%铁铬合金加0.88%‑5%碳,通过超音速火焰喷涂或冷喷涂形成,涂层的孔隙率为0.5%~0.9%,显微硬度为400~500HV,涂层与球体的结合强度为70±6MPa。
Description
技术领域
本发明涉及云台紧固技术领域,具体涉及一种基于涂层紧固强化的云台。
背景技术
云台作为最常用的固定,转向设备之一,常被应用于无人机或投影仪中。在云台中,为获得稳定的拍摄画面,需要保证云台主体和工作仪器连接的稳定性,避免云台主体晃动。大多数云台是通过螺纹连接方式将云台主体从不同位置处固定在搭载平台上的,而为保证云台主体的稳定性,一般需要使用紧固螺丝固定。
目前云台在使用过程中,由于使用的工作仪器比如无人机或投影仪大都过于沉重且仅仅使用紧固螺丝与光滑球体连接紧固力差。在实际使用中,云台的紧固装置无法承受过多重量,致使紧固装置失效,使用十分的不便,故而需要提出一种紧固强化的云台解决上述所提出的问题。
中国专利申请(申请号:CN 201911122681.8,公告日:2020.01.07)公布了一种包括云台在内的可多方向调节的安装支架。但是在大多数情况下,工作仪器需要调整的不单单只是角度问题,还需考虑云台紧固装置的问题,因此需要设计一种紧固强化的云台,来满足不同工作仪器的工作需求。
发明内容
针对上述技术问题以及本领域存在的不足之处,本发明提供了一种基于涂层紧固强化的云台,针对云台的可转动球体和紧固机构的材质设计了一种用于包覆可转动球体的特殊组成的涂层,并通过特殊喷涂工艺形成特定的孔隙率,涂层本身具有优异的硬度,且可与不锈钢可转动球体基体之间产生超高结合力,显著增加与不锈钢紧固机构之间的摩擦力,从而实现对可转动球体的稳固定位,固定性能优异,解决了目前无人机、投影仪等工作仪器在使用过程中紧固装置易失效的问题,以及现有的云台紧固装置与球体间的摩檫力过小、紧固力不足、使用不便等问题。本发明基于涂层紧固强化的云台稳固性能优异,制作简便,具有良好的产业化价值。
一种基于涂层紧固强化的云台,包括底座和部分位于底座内、可多角度转动的球体,球体的露出部分上设有调节座,底座上设有用于旋紧后固定球体、阻止球体转动的紧固螺丝;球体和紧固螺丝的材质均为不锈钢;
球体表面喷涂有粗糙的涂层,用于增大与紧固螺丝接触时的摩擦力,所述涂层的组成按重量百分比计为75%-81.22%碳化钨加17.9%-20%铁铬合金加0.88%-5%碳,通过超音速火焰喷涂或冷喷涂形成,所述涂层的孔隙率为0.5%~0.9%,显微硬度为400~500HV,所述涂层与球体的结合强度为70±6MPa。
本发明的基于涂层紧固强化的云台使用时,所述球体安装在所述底座里,并可以进行多角度转动,旋紧所述紧固螺丝使之与所述球体接触可对所述球体的转动进行限制。所述紧固螺丝与球体固定时,所述紧固螺丝与所述涂层接触,增大了所述紧固螺丝与所述球体之间的摩檫力,从而增大紧固力,增加云台紧固性能,从而保证无人机、投影仪等工作仪器正常使用。
在一优选例中,所述的基于涂层紧固强化的云台,所述涂层的喷涂厚度为0.5~1mm,该厚度设计下即可产生强摩擦力。
作为优选,所述的基于涂层紧固强化的云台,所述超音速火焰喷涂、冷喷涂过程中,喷涂用粉末的组成按重量百分比计为75%-81.22%碳化钨加17.9%-20%铁铬合金加0.88%-5%碳,粒度为10~45μm,该粒度范围可有效增加洛氏硬度,从而增加涂层耐磨性。
作为优选,所述超音速火焰喷涂的条件参数为:煤油:24~25m3/h,氧气:850~870L/min,送粉量:45~55g/min,喷涂距离为250-300mm;所得涂层的显微硬度为440±20HV,与球体的结合强度为70±5MPa。
进一步优选,球体进行所述超音速火焰喷涂前先用酒精清洗去除表面油污,然后用压缩空气将表面吹净。
作为优选,所述冷喷涂采用Kinetic 4000冷喷涂***,以氮气为工作气体,条件参数为:气体温度600~800℃,喷涂压力3.5~4.0MPa,喷涂距离20-30mm,粉末进给率2.0~3.0r/min;所得涂层的显微硬度为450±44HV,与球体的结合强度为70±6MPa。
本发明与现有技术相比,主要优点包括:
相比于常规云台使用紧固螺丝与光滑球体进行紧固,紧固螺丝与光滑球体表面接触,摩擦力过小,无法承担起支撑工作仪器的效果,容易打滑或偏移。本发明使用超音速火焰喷涂或冷喷涂在不锈钢球体表面喷涂特定孔隙率和特殊组成的粗糙涂层,具有优异的硬度,且可与不锈钢球体基体之间产生超高结合力,仅需0.5~1毫米厚,在紧固螺丝与球体接触时,会先接触涂层,紧固螺丝与粗糙涂层表面接触,球体与不锈钢紧固螺丝之间的摩擦力显著增加,紧固力增大,从而实现对可转动球体的稳固定位,固定性能优异,解决了目前无人机、投影仪等工作仪器在使用过程中紧固装置易失效的问题,以及现有的云台紧固装置与球体间的摩檫力过小、紧固力不足、使用不便等问题。本发明基于涂层紧固强化的云台稳固性能优异,制作简便,具有良好的产业化价值。
附图说明
图1为本发明的基于涂层紧固强化的云台的结构示意图;
图中:
1-调节座;
2-球体;
3-底座;
4-紧固螺丝。
具体实施方式
下面结合附图及具体实施例,进一步阐述本发明。应理解,这些实施例仅用于说明本发明而不用于限制本发明的范围。下列实施例中未注明具体条件的操作方法,通常按照常规条件,或按照制造厂商所建议的条件。
如图1所示,本发明的基于涂层紧固强化的云台,包括底座3和部分位于底座3内、可多角度转动的球体2,球体2的露出部分上设有调节座1,底座3上设有用于旋紧后固定球体2、阻止球体2转动的紧固螺丝4;球体2和紧固螺丝4的材质均为不锈钢。
球体2表面喷涂有0.5~1mm厚的粗糙的涂层,用于增大与紧固螺丝4接触时的摩擦力,所述涂层的组成按重量百分比计为81.22%碳化钨加17.9%铁铬合金加0.88%碳,通过超音速火焰喷涂或冷喷涂形成,所述涂层的孔隙率为0.5%~0.9%,显微硬度为400~500HV,所述涂层与球体2的结合强度可达70±6MPa。
所述超音速火焰喷涂、冷喷涂过程中,喷涂用粉末的组成按重量百分比计为81.22%碳化钨加17.9%铁铬合金加0.88%碳,粒度为10~45μm,该粒度范围可有效增加洛氏硬度,从而增加涂层耐磨性。
本发明的基于涂层紧固强化的云台使用时,球体2安装在底座3里,并可以进行多角度转动,旋紧紧固螺丝4使之与球体2接触可对球体2的转动进行限制。紧固螺丝4与球体2固定时,紧固螺丝4与所述涂层接触,增大了紧固螺丝4与球体2之间的摩檫力,从而增大紧固力,增加云台紧固性能,从而保证无人机、投影仪等工作仪器正常使用。
本发明基于涂层紧固强化的云台稳固性能优异,制作简便,具有良好的产业化价值。
实施例1
使用超音速火焰喷涂,其条件参数为:煤油:24~25m3/h,氧气:850~870L/min,送粉量:45~55g/min,喷涂距离为250mm;所得涂层的显微硬度为440±20HV,与球体2的结合强度为70±5MPa。并且,球体2进行所述超音速火焰喷涂前先用酒精清洗去除表面油污,然后用压缩空气将表面吹净。
实施例2
使用冷喷涂,其采用Kinetic 4000冷喷涂***,以氮气为工作气体,条件参数为:气体温度600~800℃,喷涂压力3.5~4.0MPa,喷涂距离20mm,粉末进给率2.0~3.0r/min;所得涂层的显微硬度为450±44HV,与球体2的结合强度为70±6MPa。
此外应理解,在阅读了本发明的上述描述内容之后,本领域技术人员可以对本发明作各种改动或修改,这些等价形式同样落于本申请所附权利要求书所限定的范围。
Claims (6)
1.一种基于涂层紧固强化的云台,其特征在于,包括底座(3)和部分位于底座(3)内、可多角度转动的球体(2),球体(2)的露出部分上设有调节座(1),底座(3)上设有用于旋紧后固定球体(2)、阻止球体(2)转动的紧固螺丝(4);球体(2)和紧固螺丝(4)的材质均为不锈钢;
球体(2)表面喷涂有粗糙的涂层,用于增大与紧固螺丝(4)接触时的摩擦力,所述涂层的组成按重量百分比计为75%-81.22%碳化钨加17.9%-20%铁铬合金加0.88%-5%碳,通过超音速火焰喷涂或冷喷涂形成,所述涂层的孔隙率为0.5%~0.9%,显微硬度为400~500HV,所述涂层与球体(2)的结合强度为70±6MPa。
2.根据权利要求1所述的基于涂层紧固强化的云台,其特征在于,所述涂层的喷涂厚度为0.5~1mm。
3.根据权利要求1所述的基于涂层紧固强化的云台,其特征在于,所述超音速火焰喷涂、冷喷涂过程中,喷涂用粉末的组成按重量百分比计为75%-81.22%碳化钨加17.9%-20%铁铬合金加0.88%-5%碳,粒度为10~45μm。
4.根据权利要求1或3所述的基于涂层紧固强化的云台,其特征在于,所述超音速火焰喷涂的条件参数为:煤油:24~25m3/h,氧气:850~870L/min,送粉量:45~55g/min,喷涂距离为250-300mm;所得涂层的显微硬度为440±20HV,与球体(2)的结合强度为70±5MPa。
5.根据权利要求4所述的基于涂层紧固强化的云台,其特征在于,球体(2)进行所述超音速火焰喷涂前先用酒精清洗去除表面油污,然后用压缩空气将表面吹净。
6.根据权利要求1或3所述的基于涂层紧固强化的云台,其特征在于,所述冷喷涂采用Kinetic 4000冷喷涂***,以氮气为工作气体,条件参数为:气体温度600~800℃,喷涂压力3.5~4.0MPa,喷涂距离20-30mm,粉末进给率2.0~3.0r/min;所得涂层的显微硬度为450±44HV,与球体(2)的结合强度为70±6MPa。
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