Crane safety against accidental operation, including chassis, pillar, supporting rod, pump and the lifting arm, high pressure chamber of the oil cylinder through the oil drain oil and composed of an outer sleeve and the cylinder oil tank is communicated, put the oil valve rod in an oil discharge path; the outer end of the valve rod in oil valve, oil discharge valve rod is arranged at the external end the hand wheel assembly, hand wheel assembly comprises a hand wheel body, wheel pressure spring and a clamping part, the handwheel is used to set the center hole to put the oil in the outer end of the valve stem, insert the end side wall is provided with a clamping groove wheel; wheel pressure spring set oil valve stem in the outer end, one end of the pressure spring arrived at the steps of hand wheel in the end put oil in the outer end of the valve rod, at the inner face of the other end of the pressure spring against the handwheel in the center hole of the outer wall; oil discharge valve stem is provided with a clamping part. The beneficial effect of the utility model is that no need to remove the handle to operate, and the operation is convenient. The handwheel can not drive the oil drain stem to cause accidental oil discharge to the hydraulic pump and ensure the safety of the crane from the surface.
【技术实现步骤摘要】
防意外操作的安全吊机
本技术涉及一种防意外操作的安全吊机。
技术介绍
原有吊机油泵的放油阀杆直接裸露在外,如图5所示,在吊机工作时,可能对其意外触碰,从而造成对吊机的意外释放,产生危险,存在不小的安全隐患。需要释放吊机时,需将手柄(1')从揿手(2')中拔出,将手柄(1')套在放油阀杆(3')上,且需将手柄上的凹槽(11')对准、插入放油阀杆(3')的挡销(31'),操作不方便。
技术实现思路
为了解决目前的吊机释放时操作不便的问题,本技术提出了一种操作简单、无需拔出手柄的防意外操作的安全吊机。本技术所述的防意外操作的安全吊机,包括底架、立柱、支撑杆、油泵和起吊臂,所述底架配有滚轮,所述立柱底端与所述底架固接,所述立柱的上端与起吊臂的安装端铰接,所述的起吊臂的自由端安装吊钩;所述支撑杆的底端与底架铰接,所述支撑杆的上端与所述立柱的上部铰接;所述油泵的底部与所述立柱铰接,所述油泵的活塞杆与所述起吊臂铰接,所述的油泵包括外套、阀体、低压油泵、高压油泵、带活塞杆的油缸、手柄以及与所述的油缸的放油口连通的放油阀杆,所述阀体装在所述外套底部,所述低压油泵、高压油泵安装在阀体上, ...
【技术保护点】
防意外操作的安全吊机,包括底架、立柱、支撑杆、油泵和起吊臂,所述底架配有滚轮,所述立柱底端与所述底架固接,所述立柱的上端与起吊臂的安装端铰接,所述的起吊臂的自由端安装吊钩;所述支撑杆的底端与底架铰接,所述支撑杆的上端与所述立柱的上部铰接;所述油泵的底部与所述立柱铰接,所述油泵的活塞杆与所述起吊臂铰接,所述的油泵包括外套、阀体、低压油泵、高压油泵、带活塞杆的油缸、手柄以及与所述的油缸的放油口连通的放油阀杆,所述阀体装在所述外套底部,所述低压油泵、高压油泵安装在阀体上,带活塞杆的油缸装在所述外套内部,并且所述活塞杆顶部从安装在外套顶部的顶帽中伸出;所述的低压油泵底部和所述的高压 ...
【技术特征摘要】
1.防意外操作的安全吊机,包括底架、立柱、支撑杆、油泵和起吊臂,所述底架配有滚轮,所述立柱底端与所述底架固接,所述立柱的上端与起吊臂的安装端铰接,所述的起吊臂的自由端安装吊钩;所述支撑杆的底端与底架铰接,所述支撑杆的上端与所述立柱的上部铰接;所述油泵的底部与所述立柱铰接,所述油泵的活塞杆与所述起吊臂铰接,所述的油泵包括外套、阀体、低压油泵、高压油泵、带活塞杆的油缸、手柄以及与所述的油缸的放油口连通的放油阀杆,所述阀体装在所述外套底部,所述低压油泵、高压油泵安装在阀体上,带活塞杆的油缸装在所述外套内部,并且所述活塞杆顶部从安装在外套顶部的顶帽中伸出;所述的低压油泵底部和所述的高压油泵底部都螺接在所述的阀体上;所述的低压油泵的低压油腔、所述的高压油泵的高压油腔分别与所述的油缸连通;所述的手柄通过揿手安装在所述的阀体上,所述的揿手前端与所述的阀体的揿手连杆上端铰接,所述揿手的末端的滚轮按压在低压油泵的低压泵芯顶部,所述的揿手中部通过销轴与所述高压油泵的高压泵芯顶部铰接,其中所述揿手与揿手连杆之间的铰接点为第一铰接点,所述的揿手与高压泵芯之间的铰接点为第二铰接点,所述的第一铰接点、所述的第二铰接点以及滚轮中心处于同一轴线上,保证所述的低压油泵的运动行程始终大于所述的高压油泵的运动行程,其特征在于:油缸高压腔...
【专利技术属性】
技术研发人员:郑新强,
申请(专利权)人:杭州盈江机械制造有限公司,
类型:新型
国别省市:浙江,33
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