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What should we pay attention to when buying dump trailers?

| 2020-06-29

Semi tipper trailers are suitable for the transportation of bulk and bulk goods such as coal, ore and building materials. Semi tipper trailers can be divided into two categories according to their uses: One category is heavy-duty and super-heavy dump trucks used for off-road transportation. They are mainly responsible for large-scale mining and engineering transportation tasks, and are usually used in conjunction with excavators. Another type of dump trailer, medium, and ordinary dump trucks for road transportation is mainly responsible for the transportation of loose goods such as sand, gravel, coal, etc. It is usually used with a loader.

Many customers and friends ask questions about dump trailers, so what should we pay attention to when buying dump trailers? For this reason, Titan specially sorted out some points to pay attention to when buying a dump trailer.

3 axle dump trailer3 axle dump trailer

1.What is the reason for insufficient braking force and reduced braking efficiency?

 

The brake air chamber is touched or damaged (air pressure type), and the wheel cylinder piston cup leaks oil (hydraulic type). Poor sealing of the exhaust valve of the control valve (air pressure type). The pipe joint is loose or the pipe is broken, leaking gas or oil. Improper adjustment of the brake shoe and brake gap, oil or dirt on the shoe skin.

Insufficient air pressure (air pressure type), the oil level of the oil reservoir is too low (hydraulic type). The pedal free travel is too large. The control valve die is broken or depressed (air pressure type), and the master cylinder piston cup leaks oil (hydraulic type).

3 axle 4 axle tipper trailer3 axle 4 axle Hydraulic Tipper Trailer

2.The dump truck can’t lift?

 

The following parts should be investigated for the dump truck without lifting. Check the power take-off: first see if the drive shaft connected to the oil pump rotates, if it does not turn, it means that there is a problem with this part of the power take-off (the solenoid valve of the power take-off or the power take-off itself has a problem);

Check the distribution valve: ① Check whether there is gas in the air pipe on the distribution valve. Press the lifting and lowering switches to check whether there is air in the two trachea on the distribution valve. If there is no gas, it means that the solenoid valve that controls the lifting and lowering has failed, and the solenoid valve should be replaced. ② Is the distribution valve damaged?

Check the oil pump: ① Whether the rotation direction of the oil pump is correct. Extend the left hand, the thumb is facing the spline of the oil pump, and the rotation direction of the remaining fingers is the same, it is the left-handed pump, otherwise it is the right-handed pump. ②Whether the oil pump is damaged. Wear of the oil pump will cause the high and low pressure chambers of the oil pump to communicate and fail to pump oil.

Tipper semi trailerTipper semi trailer

● The quantity of hydraulic jack depends on the tonnage

The hydraulic jack is an important part of the rollover. The number of hydraulic jacks used is different according to the tonnage of the load. TITAN dump trucks within 12 meters in length use 5 1 (5 lifting cylinders, one shift cylinder); length 13 meters 6 1. The shifting roof generally uses 120-150 cylinders. Regular manufacturers have higher requirements and better quality and service, but the price is more expensive. However, there are many small manufacturers who are blind to the price and can only choose accessories of poorer quality.

Customers need to be cautious when choosing manufacturers. Be sure to choose large manufacturers. Pre-sale and post-sale protection are guaranteed, and safety is more important. The hydraulic top bracket carries a large part of the weight of the cargo when it is lifted, and the firmness of the bracket is important. The shaft at the connection between the hydraulic jack and the sub-frame should be well protected, otherwise it will be easy to bend.

Details of the tipper trailerDetails of the tipper trailer

● Bracing is very important

The diagonal brace, when the side is overturned, most of the weight of the cargo is supported by the diagonal brace. Therefore, the firmness of the diagonal brace is very important. Once the diagonal brace is broken, it is easy to cause a rollover accident, so the reinforcement of the diagonal brace is very important.

The number of diagonal braces should be reasonable, not as much as possible. According to the weight of the cargo, a reasonable design to reduce the weight of the vehicle and reduce the weight of the car under the premise of normal use is a necessary quality for a regular qualified car factory. For trailers, TITAN is a good choice.

Also pay attention to the rotating bracket at the top of the diagonal brace. When turning over and unloading, you must remember to pull out the pin, pull out the pin, and pull out the pin. If the design here is unreasonable, it is easy to pull out if it is bent a little, which will affect the unloading. .

Details of the tipper trailerDetails of the tipper trailer

● Uneven stress during rollover, higher load-bearing capacity requirements

The importance of the girder to a trailer is self-evident. For the dump trailer girder, the girder of the van with the same load capacity should be selected to be larger.

The first reason is that the beam of the dump trailer has an auxiliary frame on the flat road. The force of the beam is the same as that of the ordinary van, but the beam is unevenly loaded when it rolls over, and the longitudinal beam on the side of the diagonal brace is stressed. Higher than ordinary cars. The second is that the goods pulled by the rollover semi-trailer are generally heavy goods such as steel, stones, coal, etc., and they also have higher requirements on the load-bearing capacity of the beam.

 

● TITAN reminder

The most critical part of the rollover dump semi-trailer is the hydraulic system and the diagonal brace. Users must pay attention when buying the rollover dump semi-trailer. The hydraulic roof of large enterprises is guaranteed. The brace should pay attention to the manufacturer's welders and reinforcement .

 

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