The utility model relates to an inter arm locking device, which belongs to the field of a telescopic arm of a lifting device. One arm barrel is internally inserted with two arm barrels, two arm barrels are internally inserted with three arm barrels, one arm barrel, two arm barrels and three arm barrels are all square cylinder structures, one arm barrel and the through-hole processed on the two arm barrels are fixed with a lock block assembly, the lock block assembly is composed of a lock seat, a shift fork push rod and a wedge block, a wedge block is arranged in the counterbore at the bottom of the lock seat, and a convex surface at the top of the wedge block is provided with an inclined surface One end of the shift fork push rod is connected with the shift fork through the guide hole of the lock seat. A single rod oil cylinder is installed on the surface of one section of arm cylinder and two sections of arm cylinder. The cylinder rod of the single rod oil cylinder with compression spring is hinged in the middle of the push plate, and the end of the push plate is hinged with the shift fork. The utility model can lock automatically at any expansion position, the expansion arm after locking does not shake or retract, the hydraulic unlocking, the action coordination, the reaction is rapid and the work efficiency is high.
【技术实现步骤摘要】
臂间锁紧装置
本技术属于起重设备伸缩臂领域,具体地说是一种臂间锁紧装置。
技术介绍
目前,起重机及工程机械上的箱型结构伸缩臂,各节臂筒之间的间隙主要靠多组滑块消除,由于伸缩臂筒为钢板折弯焊接而成,各节臂筒之间的间隙大小不匀,滑块的厚度主要靠人工调节,太厚则摩擦力太大,影响伸缩臂的伸缩,太薄则会导致各臂筒之间产生间隙,伸缩时稳定性差,容易晃动,伸缩到位后靠液压系统的平衡阀进行锁定,长时间保持伸出工作状态,易产生较大的沉降,使伸缩臂回缩。
技术实现思路
为了克服现有技术的不足,本技术提供一种臂间锁紧装置,它具有结构简单,安装方便,工作可靠的优点,锁紧力均匀可靠,液压油缸解锁,反应迅速、动作协调、工作效率高。本技术解决其技术问题所采用的技术方案是:一种臂间锁紧装置,一节臂筒内插装有二节臂筒,二节臂筒内插装有三节臂筒,一节臂筒、二节臂筒及三节臂筒均为方筒形结构,其特征在于,一节臂筒及二节臂筒上加工的通孔内固定有锁块总成,所述的锁块总成由锁座、拨叉推杆和楔块组成,锁座底部沉孔内装有楔块,楔块顶部的凸起带有斜 ...
【技术保护点】
1.一种臂间锁紧装置,一节臂筒内插装有二节臂筒,二节臂筒内插装有三节臂筒,一节臂筒、二节臂筒及三节臂筒均为方筒形结构,其特征在于,一节臂筒及二节臂筒上加工的通孔内固定有锁块总成,所述的锁块总成由锁座、拨叉推杆和楔块组成,锁座底部沉孔内装有楔块,楔块顶部的凸起带有斜面,所述的斜面与拨叉推杆杆身上加工的斜面滑动配合,拨叉推杆一端穿过锁座的导向孔与拨叉连接,一节臂筒及二节臂筒表面安装有单杆油缸,单杆油缸装有压缩弹簧的缸杆铰接在推板中部,推板的端部与拨叉铰接。/n
【技术特征摘要】
1.一种臂间锁紧装置,一节臂筒内插装有二节臂筒,二节臂筒内插装有三节臂筒,一节臂筒、二节臂筒及三节臂筒均为方筒形结构,其特征在于,一节臂筒及二节臂筒上加工的通孔内固定有锁块总成,所述的锁块总成由锁座、拨叉推杆和楔块组成,锁座底部沉孔内装有楔块,楔块顶部的凸起带有斜面,所述的斜面与拨叉推杆杆身上加工的斜面滑动配合,拨叉推杆一端穿过锁座的导向孔与拨叉连接,一节臂筒及二节臂筒表面安装有单杆油缸,单杆油缸装有压缩弹簧的缸杆铰接在推板中部,推板的端部与拨叉铰接。
2.根据权利要求1所述的臂间锁紧装置,其特征是一节臂筒内插装有二节臂筒,二节臂筒内插装有三节臂筒,一节臂筒、二节臂筒及三节臂筒均为方筒形结构,一节臂筒及二节臂筒上加工的通孔内固定有锁块总成,所述的锁块总成由锁座、拨叉推杆和楔块组成,锁座底部沉孔内装有楔块,楔块顶部的凸起带有斜面,斜面与拨叉推杆杆身上加工的斜面滑动配合,拨叉推杆一端穿过锁座的导向孔与拨叉连接,一节臂筒及二节臂筒表面安装有双杆油缸,双杆油缸装有压缩弹簧的缸杆铰接在左侧推板中部,左侧推板端部与拨叉铰接,双杆油缸固定杆铰接在右侧推板中部,右侧推板的端部与另一拨叉铰接。
3.根据权利要求1所述的臂间锁紧装置,其特征是一节臂筒内插装有二节臂筒,二节臂筒内插装有三节臂筒,一节臂筒、二节臂筒及三节臂筒均为方筒形结构,一节臂筒及二节臂...
【专利技术属性】
技术研发人员:梁志建,娄云飞,梁晓云,邹晓光,孙卫强,岳玉泉,
申请(专利权)人:威海怡和专用设备制造有限公司,
类型:新型
国别省市:山东;37
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