Tracks are a common type of vehicle in our lives. It is mainly used for self -run power machines for traction and driving operating machinery to complete various mobile operations.Tracks are generally used in agriculture. Of course, there are also tractors with industrial and special uses. How to classify the tractor? What is the principle of the tractor?
Principles and components of tractors
It can be driven by the power transmission system of the internal combustion engine, so that the driver wheel obtains the driving torque MK, and the drive wheel that obtains the driver torque is then used to give the ground with small and backward horizontal force (cutting force) on the ground through the tire pattern and the tire surface.For the high -level driving force and the opposite horizontal rice, PK, this PK rice is the driving force for driving forward (also known as promotion force).When the driver PK is enough to overcome the front and rear wheels to roll forward and the traction resistance of the farm tools, the tractor drives forward.It can be seen that the driving of the wheel tractor is achieved by the interaction between the driving torque drive wheel and the ground, and the driving force is greater than the sum of the rolling resistance and traction resistance.
engine
It is a device that generates power generated by the tractor, and its role is to transform the fuels thermal energy into mechanical energy out of power.Most of the agricultural tractors produced in my country use diesel engines.
It is a device for tractor transmission power.Its role is to pass the power of the engine to the driver wheel and working device to drive the tractor and complete the mobile operation or fixed effect.
electrical equipment
It is a device to ensure the tractors electricity.Its role is to solve the start of lighting, security signals and engines.
Tractor classification
Classified by use
1. Industrial tractors are mainly used in projects such as roads, mines, water conservancy, oil and construction, and can also be used for farmland basic construction operations.
2. Forest tractors are mainly used in forestry collection materials, that is, collecting wood from harvesting and transporting it to the forest farm.
3. Agricultural tractor tractor is the main power machinery in agricultural mechanized production. It can be equipped with different operating machinery to complete farming, rakes, broadcasting, recovery, discharge, fertilization, spraying drugs, agricultural and sideline products processing, trenches, mining, pushing, pushing, pushing, pushTurkey and transportation.
Classified by walking device
1. Track (also known as chain rail) tractor crawler tractor walking device is a crawler. It is mainly suitable for basic construction in farmland such as soil quality, humid land field operations, farmland water conservancy, and earthwork.
2. There is only one walking wheel axis of the hand -supported tractor.If there is only one wheel on the wheels, it is called a single wheel tractor, and two wheels are called two -wheel tractors.
3. There are two walking wheels of the wheel tractor. For example, there are three wheels on the wheels of the wheel shaft called a three -wheel tractor; if the four wheels are called a four -wheel tractor.What we usually call wheel tractors refers to the two types of tractors of dual -axis three -wheel and four -wheel wheels.
Agricultural Tractor Classification
1. Ordinary tractors are mainly used for farmland mobile operations, fixed operations and transportation operations under general conditions, etc.
2. It is characterized by the tractor in the middle of the tractor.
3. Horticultural tractors are characterized by small volume, flexible maneuverability, and small power, such as hand -supported tractors and small four tractors.
4. Special tractors are suitable for tractors that work or adapt to certain special needs in a special working environment.
Classified by power
1. Large tractor power is 73.6 kilowatts (100 hp).
3. The power of a small tractor is 14.7 kilowatts (20 horsepower).
Tractor
Choice model
Agricultural tractor has three types: hand -supported, wheel and crawler tractor; according to power, it can be divided into large, medium and small tractors.To purchase a tractor, you must choose the model according to the types, operating volume and operating intensity of the main farmland operations around the farmland.At the same time, it is necessary to choose according to the specific situation of other agricultural machinery operators.
To calculate the economic account
It is not easy for farmers to accumulate some money. Buying tractors is often an investment behavior to make more money.Therefore, whether it is worth buying a tractor must first measure their performance price ratio.The so -called tractor performance ratio refers to the ratio of the performance of the tractor to its price, and the good performance is a good tractor.
Choose, check and test
Check the appearance of the shell, casting, and tires, check the safety protection device, whether the safety warning signs are complete, and check whether the manipulating mechanism is reliable. When testing, check the height of the engine oil, add diesel and cooling water, park for water leakage and oil leakage.
Check random attachment and ask for invoices
Check and check random attachment, documents and documents and product qualification certificates, agricultural machinery promotion license, "three packages" vouchers (service cards), instructions and maintenance manuals and attachments.After purchasing the goods, they actively ask the seller to ask the fiscal tax department to formally printed invoices.
Check out
To buy a tractor depends on the brand and understand its manufacturer, the brand is not blown out.In addition, brand -name products are recognized by the public for a long time, or have been recognized by the authoritative department. The product quality is reliable, the performance is advanced, the product covers is large, and the after -sales service is good.

Related tags： Machinery