Data collection experiment of tractor rotary tillage in field
The test prototype is LX2204 high-power tractor, and the working tool carried is the French Kuhn EL282 rotary cultivator. See […]
The test prototype is LX2204 high-power tractor, and the working tool carried is the French Kuhn EL282 rotary cultivator. See […]
1.Soil abrasive particles and medium The aggravation of wear at each wear part of tractor track shoe is closely related
Because the stress state of tractor track shoe is complex and the working conditions have a great influence, the damage
The micro analysis of the worn surface of tractor track shoe is of great significance to study its wear characteristics
The working conditions of tractor track shoes are relatively poor. The relative motion characteristics and tribological characteristics of the contact
In recent years, the track shoe research group has conducted 21 joint loading tests in Guangdong (paddy field), Northeast China
The cast track shoe of tractor is the most easily worn part on tractor and bulldozer. Its working conditions are
Tractor parts track shoes are the largest number of easily worn parts on tractors and bulldozers. Its working conditions are
The finite element analysis and topology optimization design of tractor gearbox shell casting under static conditions are carried out. The
In order to ensure that the improved structure can meet the requirements of stiffness, strength and dynamic performance, it is
According to the topology optimization calculation results, the casting mechanism of the original tractor gearbox shell is optimized and improved
Due to the limitations of time, conditions and personal experience, there are still many deficiencies: (1). Mesh size of finite
In recent years, with the vigorous development of manufacturing industry and the acceleration of the diversification of product market demand,
Fig. 1 and Fig. 2 are displacement nephogram and stress nephogram of tractor gearbox housing casting under reverse working condition
The displacement nephogram and stress nephogram of tractor gearbox shell casting under the first gear working condition are shown in
Through CATIA, the 3D digital model of tractor gearbox shell casting is established, and the line 3D digital model is
The die-free casting precision forming machine uses the milling method to complete the processing and forming of sand mold and
Constrained modal analysis of tractor gearbox shell casting refers to the modal analysis carried out by simulating the connection between
Through the actual observation of the assembly and connection relationship of tractor castings, we can know that the engine, gearbox
Through the free mode calculation results, it can be seen that the first six modes of the gearbox shell are
In order to facilitate the calculation and accurately reflect the actual working environment of the gearbox, the working environment of
Tractor gearbox is the core component of the whole transmission system. The force generated by its internal gear meshing transmission
The mold free digital precision forming machine is used to realize the milling and forming of glass sand and resin
The casting material of tractor gearbox housing is nodular cast iron QT450-10. The material properties are given to the meshed
The deformation mode of the structure is determined by the external vibration mode of the tractor, and the deformation mode
The establishment of finite element model of tractor gearbox shell casting is the basis of finite element analysis and calculation.
In order to solve the problems of excessive mass and unreasonable stress distribution of gearbox shell castings of high-power tractors,
China is a large agricultural country, but it is not a powerful agricultural country. The contradiction between small-scale agricultural production
The pouring system of tractor box castings can be divided into closed type, open type, semi closed type and closed
Parting surface refers to the joint surface between two mold components in the casting process of tractor box. Parting surface