机械毕业设计英文外文翻译300拉臂式垃圾车设计

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The Design of Pull Arm Garbage Truck

1The introduction of Pull Arm Garbage Truck

Pull arm garbage truck is equipped with two types of chassis that has a trunk load and unloading functions to pull arm device-specific vehicles. It can be achieved with car trunk the combination and separation, while the bulk of the trunk to achieve self-unloading cargo operations. The model has been widely used in foreign countries, often in the domestic industry as a sanitation refuse collection vehicles. 5 t pull arm garbage truck is one of the commonly used models, compared to 8 t Arm pull over large tonnage trucks, the pull-arm device structure is relatively simple and easy to domestic Manufacturers; And large tonnage often imported pull arm device. Domestic Manufacturers producing 5 t pull the car pulling the boom arm structure of the device, although about the same, but the important structural parameters of the selection and design of different structural arrangement, it will directly affect the car performance]20[.

2 Pull the boom structure and principle of the device

2.1 The structural characteristics of pull-arm device

5 t pull arm garbage truck pulling device consists of pulling the boom arm and pull arm cylinder, the United Moving frame, trunk insurance hook and cylinder, and the frame. La Boom device structural arrangement shown in figure 2, pull telescopic arm is not used right-angle bend structure. the end of the cylinder and pull the piston rod side arm hinged on the hinge pivot B; Another linkage frame front end and hinged at the hinge pivot C, the formation of a rotary arm pull

heart. Cylinder head cylinder arm pull side hinged front frame on the hinge pivot A; linkage frame hinged rear axle frame rear hinge pivot D, the formation of linkage rotary frame heart. Insurance linkage trunk rack hook set the hook cylinder and insurance cylinder.

2.2 The working principle of the device arm pull

Pulling garbage truck arm by pulling the device to complete the function of two different dynamic, for boxes and dumping. When the pull device for boom box action, the first cylinder insurance hook action open the trunk insurance hook, trunk lift insurance. Pull lift arm cylinder piston rod elongation from the pull arm, pull arm to pivot around the hinge C clockwise rotation, the hook arm to pull back move. If the frame is equipped with a trunk, the trunk was pushed home ground. When put on the frame, so that the first hook retractor trunk rings, and contraction of the piston rod, pull arm to hinge pivot counter-clockwise rotation axis C, will put on the flat trunk, the insurance cylinder hook action, pull carriages insurance hook fixed to the frame to the trunk.

When the pull-arm device dumping action, and action for different box, trunk insurance hook dump in the whole process to ensure that tension in the arm and trunk are not isolated, that is pull arm、the linkage through the trunk rack and trunk link between the insurance as one of the hook, by the deputy rear frame hinge pivot clockwise rotation axis D, lifting carriages lifted until the refuse rubbish. Trunk reset, as long as the retraction of cylinder piston rod pull arm, the pulling arm body still hinge pivot point D is the shaft counterclockwise rotation, until the trunk reset.

3 La Boom Selection and design of device structure parameters

3.1 Device to pull the boom pivot hinge arrangement and geometry