How to operate a cement mixer truck, how to drive a mixer truck for novices

Will you operate the cement mixer truck correctly? The following details the use of cement mixer trucks.

Step Method Before the operation of the cement mixer truck, it must be checked to confirm that the steering, braking, light and signal systems are sensitive and effective, the drum and chute of the mixer truck are free of cracks and serious damage, the mixing blades are worn within the normal range, and the U-bolt connection between the chassis and the subframe is good. Understand the construction requirements and site conditions. Select driving directions and parking locations.

Driving on social roads must follow the traffic rules. The turning radius should meet the requirements of the instruction manual, and the speed should not be more than 15km per hour. The pit stop speed is not more than 5 km/h.

When working, it is strictly forbidden to touch the rotating rollers and rollers with your hands. When the cement mixer truck is reversing and unloading, it is necessary to obey the command, pay attention to the surrounding personnel, and stop immediately if there is an abnormality. It is strictly forbidden to carry out cement mixer truck cleaning operations under the high pressure line.

According to the moisture content of the concrete transported by the concrete mixer truck, there are three kinds of mixer trucks: wet material type, dry material type and semi-dry material type. Most of the wet material concrete mixer trucks are used in China, which can transport the concrete produced by the mixing plant (station) or the aggregate (sand, gravel), cement and water mixed according to the ratio, and in the process of transportation, the wet material is constantly slowly stirred to prevent the initial setting and segregation of concrete in the transportation process. However, the time from production to pouring of concrete generally cannot be exceeded, so as to avoid concrete solidification.

Therefore, in the case of longer distance transportation, dry and semi-dry material mixer trucks are used to transport. The dry material mixer truck can directly load the dry aggregate and cement into the mixing drum of the truck according to the proportion, and the dry material in the drum is mixed during transportation, when the vehicle is about to arrive at the construction site or add water to the construction site to complete the mixing of concrete. The aggregate and cement in the concrete transported by the semi-dry material mixer truck are also prepared according to the proportion, and contain a certain amount of water, but the water content does not meet the pouring requirements, and it is necessary to add water and stir at the construction site when the vehicle is about to reach the construction site or at the construction site.

Correct use of the clutch:

1. The pressure plate and clutch plate of the clutch should be smooth and completely separated; The free travel of the clutch pedal should comply with the regulations (I don't know what model you are talking about, generally at 8---12mm).

2. When starting, be sure to start with a low speed gear (1st gear), especially a truck, when heavy load, if the gear is slightly higher and start with a large throttle, then the clutch plate will be burned quickly.

3. After starting, the left foot quickly leaves the clutch pedal, otherwise, it is easy to produce the clutch in a semi-clutch state, which is also easy to damage the clutch release bearing.

4. Slow down while driving, and do not step on the clutch with your left foot (unless it is emergency braking) when you step on the brakes. This bad driving habit of pressing the clutch at the same time as soon as the brake pedal is used must be overcome.

5. Always check the free stroke of the clutch pedal and other parts of the clutch to keep the clutch in a good technical condition.

Instructions for the use of mixer trucks:

1. Before starting, all parts of the mechanical system should be carefully inspected, and it can be started only after confirming that it is good.

2. Before starting, the stirring lever should be placed in the "neutral" position.

3. After starting, the stirring lever should be placed in the "discharge" position to remove the water in the cylinder.

4. When loading, the stirring operation lever should be placed in the "loading" position.

5. Before transportation, the discharge chute must be fixed in the "driving" position to prevent swinging.

6. When operating the joystick, it should stop for a while in the "neutral" position before moving to the next position.

Seventh, do a good job in civilized construction, and the excess materials in the barrel are not allowed to be poured casually. After discharging, the mixing drum, trough, roller and other parts must be cleaned.

8. When people enter the tube to remove concrete agglomeration, the vehicle should be turned off, the electric door key should be removed, and the person outside the cylinder should be monitored.

Relevant laws "Regulations on the Application and Use of Motor Vehicle Driving Licenses".

1) Motor vehicle driver information: name, gender, date of birth, nationality, address, identification number (motor vehicle driver's license number), **.

2) The content of the endorsement of the vehicle management office: the date of the initial license, the code of the type of permitted driving, the start date of the validity period, the validity period, the seal of the issuing authority, and the file number.

Article 8 The order of the models that the driver of a motor vehicle is allowed to drive is divided into:

Large buses, tractors, city buses, medium-sized buses, large trucks, small cars, small automatic vehicles, low-speed trucks, three-wheeled vehicles, small automatic transmission passenger cars for the disabled, ordinary three-wheeled motorcycles, ordinary two-wheeled motorcycles, mopeds, wheeled self-propelled mechanical vehicles, trolleybuses and trams. (Annex 1).

Article 9 The validity period of a motor vehicle driver's license is divided into six years, ten years, and a long term.

Article 10 Those over the age of 60 shall not drive large passenger cars, tractors, city buses, medium-sized buses, large trucks, trolleybuses and trams; Those over the age of 70 are not allowed to drive low-speed trucks, three-wheeled vehicles, ordinary three-wheeled motorcycles, ordinary two-wheeled motorcycles and wheeled self-propelled mechanical vehicles.

The concrete batching plant is divided into four parts: sand and gravel feeding, powder (cement, fly ash, expansion agent, etc.).

The operation interface of the machine dialogue, the system is initialized, including the formula number, concrete grade, slump, production quantity, etc. According to the weighing, each silo and metering hopper are detected, and the signal of empty or full material is output, prompting the operator to determine whether to start the mixing control program. Start the sand and stone belt motor to feed the material to the metering bucket; Open the butterfly valve of the fly ash and cement tank, and start the screw motor to transport fly ash and cement to the metering bucket; Open the control valves of the water tank and the admixture pool to allow water and admixtures to flow into the metering hopper.

After the metering meets the set requirements, open the metering bucket door, and the ingredients enter the started mixer to stir and mix, and open the mixer door at the set time, and the concrete enters the mixer truck that has received the material.

1.Each cylinder, control valve and motor operate according to the requirements of the concrete mixing process, and the control of each cylinder, control valve and motor must be accurate, stable and reliable.

2. The control system has two working modes: automatic and manual, and the relationship between them is independent and restricts each other.

3. The system has good anti-interference ability and perfect alarm self-protection function.

4. Through communication with the computer, the system working status and fault alarm can be displayed.