反铲式挖掘机是我们常见的挖土设备的一种挖掘机,主要用于作业面以下的基坑(槽)或管沟、独立基坑及边坡的开挖;直线、曲线挖掘、保持一定角度挖掘、超深沟挖掘和沟坡挖掘等。
Backhoe excavator is a type of excavator commonly used in excavation equipment, mainly used for excavation of foundation pits (trenches) or pipe trenches below the working surface, independent foundation pits, and slopes; Straight line and curve excavation, excavation at a certain angle, ultra deep trench excavation and slope excavation, etc.
反铲挖掘机用为广泛的土方挖掘机械,具有操作灵活、回转速度快等特点。近年来反铲挖掘机市场飞速发展,挖掘机的生产向大型化、微型化、多功能化、专用化的方向发展。基坑土方开挖可根据实际需要,选择普通挖掘深度的挖掘机,也可以选择较大挖掘深度的接长臂、加长臂或伸缩臂挖掘机等。反铲挖掘机的主要参数有整机质量、外形尺寸、标准斗容量、行走速度、回转速度、大挖掘半径、大挖掘深度、大挖掘高度、大卸载高度、小回转半径、尾部回转半径等。
Backhoe excavators are widely used as earth excavation machinery, with characteristics such as flexible operation and fast rotation speed. In recent years, the backhoe excavator market has developed rapidly, and the production of excavators has shifted towards large-scale, miniaturized, multifunctional, and specialized directions. Excavation of foundation pit soil can be carried out by selecting excavators with ordinary excavation depths according to actual needs, or by selecting excavators with extended arms, extended arms, or telescopic arms with larger excavation depths. The main parameters of a backhoe excavator include overall weight, external dimensions, standard bucket capacity, walking speed, rotation speed, large excavation radius, large excavation depth, large excavation height, large unloading height, small rotation radius, and tail rotation radius.
反铲挖掘机的选型应根据基坑土质条件、平面形状、开挖深度、挖土方法、施工进度等情况,结合挖掘机作业方法等进行选型;在实际应用中,应根据生产厂家挖掘机产品的规格型号和技术参数,并结合施工单位的施工经验进行选型。
The selection of backhoe excavators should be based on the soil conditions of the foundation pit, plane shape, excavation depth, excavation method, construction progress, and other factors, combined with the excavator operation method; In practical applications, the selection should be based on the specifications and technical parameters of the excavator products produced by the manufacturer, and combined with the construction experience of the construction unit.
反铲装置是中小型液压挖掘机的主要工作装置,也是工程施工中运用广泛的工作装置。反铲作业主要用于挖掘机停机面以下的土壤,故大挖掘深度和大挖掘半径是反铲挖掘的主要作业参数。
The backhoe device is the main working device of small and medium-sized hydraulic excavators, and it is also a widely used working device in engineering construction. Backhoe operation is mainly used for the soil below the excavator stop surface, so large excavation depth and large excavation radius are the main operating parameters of backhoe excavation.
反铲液压挖掘机的工作装置由反铲铲斗、铲斗油缸、斗杆、斗杆油缸、动臂、动臂油缸、连杆机构等构成,各部件间全部采用铰接,通过油缸的伸缩来实现挖掘过程中的各种动作。动臂趾部与动臂油缸下支点均铰接在转台上,并以动臂油缸来支承和改变动臂的倾角,通过动臂油缸的伸缩可使动臂绕下铰点转动而升降。斗杆铰于动臂的上端,斗杆与动臂的相对位置由斗杆油缸控制,动臂升降靠动臂油缸控制,铲斗相对于斗杆的转动靠铲斗油缸控制。用反铲作业时,可根据需要在放下动臂的同时转动斗杆或铲斗;卸料时,也可同时转动斗杆或铲斗。转动铲斗可将料直接卸于运输车上。
The working device of a backhoe hydraulic excavator consists of a backhoe bucket, bucket oil cylinder, stick, stick oil cylinder, boom, boom oil cylinder, connecting rod mechanism, etc. All components are hinged, and various actions during the excavation process are achieved through the extension and contraction of the oil cylinder. The toe of the boom and the lower fulcrum of the boom cylinder are hinged on the turntable, and the boom cylinder is used to support and change the tilt angle of the boom. The boom can rotate around the lower hinge point and rise and fall through the extension and contraction of the boom cylinder. The stick is hinged on the upper end of the boom, and the relative position between the stick and the boom is controlled by the stick oil cylinder. The boom lifting is controlled by the boom oil cylinder, and the rotation of the bucket relative to the stick is controlled by the bucket oil cylinder. When working with a backhoe, the boom can be lowered while rotating the stick or bucket as needed; When unloading, the bucket handle or bucket can also be rotated simultaneously. Rotating the bucket can directly unload the material onto the transport vehicle.
为了增加Cat卡特铲斗转角,铲斗油缸往往通过连杆机构与铲斗相连。动臂、斗杆、铲斗的动作可分别进行,也可同时进行。挖掘时动作灵活,效率较高。
In order to increase the angle of the Cat Cat Cat bucket, the bucket cylinder is often connected to the bucket through a linkage mechanism. The actions of the boom, stick, and bucket can be performed separately or simultaneously. Flexible movements and high efficiency during excavation.
动臂是工作装置的主要构件,斗杆的结构一般取决于动臂的结构。反铲动臂有直动臂和弯动臂两种直动臂构造简单、轻巧、布置紧凑,主要用于悬挂式挖掘机。
The boom is the main component of the working device, and the structure of the stick generally depends on the structure of the boom. There are two types of backhoe boom: straight boom and curved boom. The straight boom has a simple, lightweight, and compact layout, and is mainly used in suspended excavators.
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