Reconstruction plan and characteristics of electric tarpaulin system used car (old-style large box)
1. What is the built-in electric tarpaulin
The built-in electric tarpaulin system refers to the track and pulley set of the electric tarpaulin system installed in the channel steel and the C-shaped groove formed by bending the steel plate (shown in Figure 3). If the height of the big box is limited, the upper side beam of the big box can be cut off, and channel steel and steel plate bending C-shaped steel are placed. , Directly placed on the top of the big box and welded firmly (shown in Figure 2), mounting rails and accessories. There are two advantages to this: ① It is beautiful and not extra wide; ② It can effectively prevent the slag and sand from falling into the track and resist damage caused by the excavator and forklift hitting the track during the loading of soil and sand.
What is an external electric tarpaulin?
External installation refers to the installation of round steel rails on both sides of the large box without moving the upper side beam of the original car (shown in Figure 1), and angle steel protection above the track (shown in Figure 2) effectively prevents slag and sand The stone fell into the track and became stuck. The two ends of the round steel track were fixed in the loading process and the excavator or forklift hit from the side. The track has a certain elasticity, and it will not hurt the track and affect the sliding. The rear traction sheaves are designed with a wear-resistant polyurethane material to scrape off a small amount of sand and gravel if it falls on the track (shown in Figure 3).
3. The problem and solution of occupying a large box after the tarpaulin is retracted
In general, there is a certain amount of space between the front bezel of the large box and the back of the cab. If the upper opening of the hydraulic cylinder is more than 500mm, either replace the cylinder (the cost is higher) or open the front pillar (not shown in Figure 1). The large box is filled with soil at the front baffle position (shown in Figure 2). The upper opening of the oil tank is more than about 300. The original large box canopy can be cut off, and the channel steel is extended to the front end (shown in Figure 3). The exit area can be protected (shown in Figure 4). When the tarpaulin is retracted, the tarpaulin is folded and wiped from the upper mouth of the oil cylinder. It does not affect the collection and cover of the tarpaulin, does not take up large boxes of space, and is beautiful (see Figure 5) ).
4. The steel rope of the built-in cylinder cannot directly pass the solution and reference diagram
In some large boxes, the hydraulic cylinders are trapped at the front bezel when the outer dimensions are met. If there is enough space in the front bezel and the cab, the motor can be installed to extend forward (shown in Figure 1). Steel ropes and oil cylinders To maintain a clearance of 150mm-200mm, the hydraulic cylinder will tilt forward when the cylinder is extended. If the distance between the front baffle and the cab is relatively small, a steering wheel can be used. Jiang Gang rope is passed behind the hydraulic cylinder to pass (Figure 2)示).
V. rendering of some old cars after transformation