When selecting the underground loader, the braking performance of the loader must be fully considered, including three types of braking, parking braking and emergency braking. There are three types of brakes: shoe, clamp and wet. The driving mechanism of the brake usually uses a force adding device, and its power source includes three types: compressed air, air top oil and hydraulic pressure. Commonly used is the air top oil braking system, usually using a dual circuit braking system.

选择c时的注意事项有哪些？

What are the considerations when selecting C?

山东井下装载机主要用于铲，装，卸，运土和石料，也可以轻度铲土和硬土。如果更换不同的工作设备，则还可以完成推土，起重和装卸其他材料的工作。在公路建设中，主要用于沥青和水泥混凝土材料场的集料和装料等作业。由于它具有快速的操作速度，良好的机动性和轻便的操作优势，因此发展迅速，成为土石施工中的主要机械。

Shandong underground loader is mainly used for shoveling, loading, unloading, transporting soil and stones, and can also shovel soil and hard soil slightly. If different working equipment is replaced, bulldozing, lifting and loading and unloading of other materials can also be completed. In highway construction, it is mainly used for aggregate and loading of asphalt and cement concrete material yard. Because it has the advantages of fast operation speed, good mobility and light operation, it has developed rapidly and become the main machinery in earth rock construction.

装载机工作装置由铲斗1.动臂2.连杆3.摇臂4和转斗油缸5.动臂油缸6等组成，整个工作设备被放在车架上，铲斗通过连杆和摇臂和转斗油缸铰接，以装卸材料。

The loader working device consists of bucket 1 Boom 2 Connecting rod 3 Rocker arm 4 and bucket cylinder 5 The whole working equipment is placed on the frame, and the bucket is hinged with the rotary bucket cylinder through connecting rod and rocker arm to load and unload materials.

装载机作业时，工作设备应确保：当转斗油缸关闭时，动臂油缸升起或降落时，连杆机构将铲斗平滑或接近平滑，以免铲斗倾斜并撒掉材料;

During the operation of the loader, the working equipment shall ensure that when the rotary bucket cylinder is closed and the boom cylinder is raised or lowered, the linkage mechanism will smooth or nearly smooth the bucket to prevent the bucket from tilting and scattering materials;

综合国内外装载机工作装置的结构类型主要有七种类型，即连接杆机构的结构性不同，分为三杆，四杆，五杆，六杆和八杆;按输入和输出杆的转向是否相同，分为正转和反转连杆机构。土方工程采用装载机铲斗结构，其斗体通常由低碳，耐磨和高强度钢板焊接制成。切割刃采用耐磨的中锰合金钢材料，侧切割刃和加强角板均由高强度耐磨钢制成。铲斗切割刀的形状分为四种。

There are seven main structural types of loader working devices at home and abroad, that is, the structure of connecting rod mechanism is different, which is divided into three rods, four rods, five rods, six rods and eight rods; According to whether the steering direction of input and output rods is the same, it is divided into forward and reverse linkage mechanisms. Earthwork adopts loader bucket structure, and its bucket body is usually made of low-carbon, wear-resistant and high-strength steel plate welded. The cutting edge is made of wear-resistant medium manganese alloy steel, and the side cutting edge and reinforcing corner plate are made of high-strength wear-resistant steel. There are four types of bucket cutters.

齿形选择应考虑插入阻力，耐磨性和易于更换等因素。齿形分为尖齿和钝齿。轮胎装载机大多采用尖齿，而履带装载机大多采用钝齿。斗齿的数量取决于斗齿的宽度，而斗齿的距离一般为150-300mm。斗齿结构分为整体和整体。中山东井下装载机大多采用整体，而大型装载机由于操作条件差，斗齿磨损严重而经常采用分体。分体式斗齿分为基本齿2和齿尖1部分。磨损后，只需要更换齿尖。

The factors such as insertion resistance, wear resistance and easy replacement shall be considered in the selection of tooth profile. The tooth profile is divided into sharp teeth and blunt teeth. Most tire loaders use sharp teeth, while most crawler loaders use blunt teeth. The number of bucket teeth depends on the width of bucket teeth, and the distance between bucket teeth is generally 150-300mm. Bucket tooth structure is divided into integral and integral. Most underground loaders in Zhongshan East are integral, while large loaders often use split because of poor operating conditions and serious bucket tooth wear. The split bucket teeth are divided into basic teeth 2 and tooth tip 1. After wear, only the tip needs to be replaced.