High standard 6200 ball bearing

The manufacturing market is reorganized; and the marketing and maintenance technology of the network platform provides a fast and comprehensive after-sales service system. The clean production of construction machinery must be thoroughly studied and promoted, and clean construction machinery products must be developed and launched. However, as the market economy and reform and opening up continue to deepen and advance, especially after joining the WTO,

China’s construction machinery industry will face increasingly fierce competition, because in accordance with my country’s commitment to foreign negotiations, my country’s construction machinery industry will Cancel import control. When faced with high-profit, high-risk new construction machinery and low-profit, low-risk traditional machinery to choose, it is often easier to accept the latter. A highly qualified scientific research team with dedication and team spirit is unimaginable. Scientific research on construction machinery should not only be satisfied with solving the practical problems of the enterprise, but also focus on original innovation., are all concentrated expressions of information technology.

3 Outdated concepts, lack of demand and pull for scientific research 　　Practice has proved that the scientific research process and its results depend to a certain extent on the stimulation and pull of market demand. To conduct research on construction machinery topics and solve related technical problems requires interdisciplinary and multi-field cooperation. So much so that in my country's large construction sites such as the Gezhouba on the Yangtze River and Xiaolangdi on the Yellow River, almost all foreign construction machinery such as Caterpillar's bulldozers and Komatsu excavators are hard to find. Of course, it is also one of the important tasks of construction machinery scientific research.

Practice has shown Mechanical Bearing 6000 relying on information technology can efficiently conduct scientific research and promote the results, and finally make enterprise production and management more scientific and reasonable, resources and energy are fully utilized, the technological content of products can be improved, and the cost can be greatly reduced. According to statistics, 32% of the existing machinery and equipment in my country's equipment industry have more than 30 years of service. So that construction machinery products with Chinese characteristics can be on the world stage as soon as possible. Analyzing the above-mentioned status quo of the construction machinery industry is not optimistic. 

Due to the large partial strike 68 Series Ball Bearings of multi-cavity forging, and the severe cold strike during the final forging, the guide rail is damaged severely in the early stage, and even the phenomenon of 'hammer stuck' occurs.; ⑷. Improve the design of the secondary valve and increase the area of ​​the orifice, thereby increasing the flow rate and velocity during the slow drop process.　　When lifting the hammer, you only need to manipulate the main valve to make the high pressure oil in the oil pump accumulator communicate with the lower cavity of the main cylinder piston.　　

But for multi-cavity forging die forging hammer to implement 'head change' transformation, 'flexible thin hammer rod theory' is obviously not applicable. According to the principle of tribology, 3 sets of tensioning structures (compression piece, taper sleeve, hammer rod) are designed to make the hammer rod by The original 'double cone structure' is changed to a 'single cone structure', which greatly avoids the occurrence of stress concentration, thereby achieving both reliable connection and convenient disassembly. The hydraulic station part includes: oil tank, motor-oil pump unit,

Electronically controlled unloading valves, valve seats, electronically controlled thermometers, heat exchange motor pump units, heat exchangers, oil filters, etc. The electro-hydraulic power head, its main body is a tank, which is used as a short-term oil tank during operation (when not working, the oil in the tank enters the oil tank of the hydraulic station placed on the ground through the oil retu pipe), with eight bolts passing through

The cushion and the pre-compression spring are fixed at the original cylinder position. In the past, “free forging electro-hydraulic hammers are not free”.2mm), which makes the forging process The eccentric force is boe by the hammer head rail, which greatly improves the life of the hammer shaft. According to the different sealing oil and gas sealing media, choose Ky rings with different Shore hardness.　　

 Keep close contact with Mechanical Bearing 6900 practice and strive to cultivate the ability to solve practical engineering problems; force and failure analysis should be carried out according to the working conditions of parts and components, and design calculation formulas should be established according to functional requirements and design constraints. 2)

The complexity of design management in the design process. In the design process, the designer continuously enriches and perfects the design information of the product until the entire product design is completed. In order to adapt well to this job, mechanical designers must possess the following basic qualities: 1. 5., the general content and goals of each stage are shown in Figure 1-2. The production level of the machinery industry is one of the main indicators of the level of modeization of a country.gif[/img] Table 1-1 'Machine Examples §1-3' Concepts and Features of Mechanical Design 1.

High sense of responsibility and rigorous work style: The designer should be responsible for the technical rationality of the design and the design consequences, and should work meticulously. The functional structure diagrams of different machines are different, and even the total functional requirements are the same, the functional structure diagrams of different schemes can be designed.

Starting from market demand, through conception, planning, and decision-making, the functions, principle schemes, technical parameters and structure of mechanical products are determined, and the ideas are tued into reality. Sustainable development issues in mechanical design 1) The products designed should meet the goals of the national science and technology policy and the national science and technology development plan: to design competitive advanced products, you should also have a good understanding of the country's science and technology in different periods Policies and scientific and technological development plans; 2)

The designed products should meet the requirements of reducing environmental pollution caused by the three wastes; 3) The designed products should meet the safety and reliability requirements of the human-machine system; 4) The designed products should be conducive to improving productivity ; 5) Reasonable use of resources. A machine can have only one execution part, or it can decompose the functions of the machine into several execution parts