在线看的福利片

茄子视频qz222app男生篡改百余名同学志愿

在线看的福利片

茄子视频qz222app男生篡改百余名同学志愿

茄子视频qz222app男生篡改百余名同学志愿

What does it feel like to drive a tractor with 89 forward / backward gears, GPS and reverse image?

Release time: November 3, 2021 Source: Reading times: large in Small

Speaking of tractors, you will think of China Yituo "Dongfanghong" model series. The noise of the tractor is loud, it emits black smoke when driving, and it is hard to shift gears? Such stereotypes have become a thing of the past. Nowadays, tractors have been able to realize power shift and be applied to farming, which makes the operation more smooth. The agricultural manipulator can handle everything by pressing a few buttons in the cab equipped with air conditioning. Behind this, there are various research and development "golden ideas" from the State Key Laboratory of tractor power system, which represents the highest technical level of domestic tractors.

"High intelligence quotient" power shift big wheel tractor, once forced the import product to reduce the price by 30%

Stepping into the Dongfanghong Agricultural Museum, we have collected many historical agricultural machinery, such as China's first generation of crawler tractors, China's first generation of amphibious wheeled tractors, China's first generation of small wheeled tractors, and China's first generation of high-power wheeled tractors. One of the exhibition vehicles witnessed the development process of China's agricultural mechanization.

Museum's 陌生人把我拉进厕所强要了我_日本一区午夜剧场免费观看_国产精品专区第102页. Compared with the traditional tractor, the 3.3-meter-high "big guy" is equipped with power shift, which does not need to step on clutch gear. It has 48 forward gears and 41 backward gears (equipped with creeping gear). It contains 6 speed ranges, which can realize continuous shifting and reversing and constantly adjust agricultural machinery.

The so-called power shift, refers to the agricultural machinery in the process of driving, automatic shift and other intelligent operation. Power shift tractor is equipped with electronic power shift, automatic cruise and other functions "Intelligent tractor" has become the mainstream model of agricultural machinery industry in developed countries.

In September 2010, Dongfanghong power shift tractor was rolled off the production line in China, ending the history that China could not produce power load shifting tractor, and a new technical platform for high-power tractors in China was basically formed.

"In the past, the power shift technology was mastered by foreign enterprises. Through continuous research and exploration, our laboratory has realized independent research and development and production, and constantly optimized." Wang Dongqing, deputy director of the State Key Laboratory of tractor power system, said that this kind of "big guy" with smoother control has been widely used in Heilongjiang, Xinjiang and other places.

Wang Dongqing said, "Dongfanghong" Lf-2204 tractor is equipped with intelligent control equipment. The driver only needs to sit in the cab equipped with air conditioner and press a few buttons to finish everything. Moreover, GPS satellite navigation and reversing images are available, and the dead corners of the land have disappeared, and precision agriculture has been successfully realized. "Compared with the mechanical shift tractors with the same power range in China, this tractor can save energy by 30% on average and increase the operation efficiency by 40%." The price of this "high intelligence" tractor is one-third cheaper than that of the same type imported.

In 2014, as soon as the LF series, the first commercialized power shift tractor of China, was put on the market, China was able to catch up with the mainstream technology level of Europe and the United States in related fields, and directly forced the import products to cut prices by more than 30%. Wang Dongqing said that now, the LF series has realized large-scale production, which indicates that China's high-end agricultural machinery product of power shift tractor has withstood the market test and has been able to compete with foreign agricultural machinery giants.

陌生人把我拉进厕所强要了我_日本一区午夜剧场免费观看_国产精品专区第102页. asked the service personnel to go door-to-door to replace the operating lever for free. "70% of the lab's work is to solve the optimization problem of existing products and develop according to the demand." Talking about the key work of the laboratory, Wang Dongqing introduced it.

Farewell to black smoke and loud noise, today's tractors are more energy-saving and efficient

In the field, the tractor is emitting thick black smoke, and the movement is very strong? In this way The stereotype impression has been changed in the State Key Laboratory of tractor power system.

One of the three major research directions of the laboratory: the key technology research of tractor transmission system is the key to change. The diesel engine is the heart of the tractor, that is, the power source. Wang Dongqing said that in the past, this power source was mechanized and adopted by the state A large amount of air pollutants will be produced every year according to the emission standards of China I, II and III.

China's regulations, from From December 1, 2022, all agricultural machinery manufactured, imported and sold shall not adopt the diesel engine of national III emission standard. "We have greatly improved the existing diesel engine technology and upgraded the fuel pump, the core component of the engine, from the traditional mechanical control to the electronic control mechanism. Now, the workload of one tractor can meet the previous 10 sets." Wang Dongqing said that through the operation verification, the engine developed by the laboratory can not only withstand high and low temperature, but also significantly reduce the overall vibration noise, and the user feedback is good.

In addition, different types of tractors can be adapted to different soil and working conditions in different regions of China, "For example, in dry land, paddy field, mountainous area and hilly land, we can equip models with different horsepower and different volume, which not only reduces fuel consumption, but also improves farming efficiency." Wang Dongqing said.

陌生人把我拉进厕所强要了我_日本一区午夜剧场免费观看_国产精品专区第102页. acquired French McCormick company, which produces tractor power shift transmission system, opening the way for Chinese agricultural machinery enterprises to develop high-end agricultural machinery equipment manufacturing.

In Wang Dongqing's view, in view of China's national conditions, in order to achieve "Intensive farming" requires the improvement of agricultural mechanization rate, which is also one of the directions of the laboratory's research and development. "At present, the comprehensive mechanization rate of cultivation and income of main grain crops in China has exceeded 70%, and the ratio of wheat and corn has exceeded 80% He said frankly that the reality that needs to be recognized is that compared with the agricultural mechanization rate of more than 90% in foreign countries, China still has a lot of room for improvement.

Power shift, continuously variable speed tractor ... more "Luoyang intelligent manufacturing" are going to the domestic and foreign markets

Data display, In 2020, the number of agricultural tractors in China has exceeded 24 million, and China's agricultural equipment is gradually developing towards large-scale, multi-functional, intelligent and efficient direction.

"Only by solving the key common technologies of tractors can we promote the industry." Wang Dongqing said.

In 2020, dongfanghong-lw3204 wheeled tractor developed by the laboratory was officially launched in order to meet the needs of domestic large farms and replace imports. This new generation of 320 horsepower continuously variable speed heavy wheeled tractor with complete independent intellectual property rights represents the highest technical level of domestic tractors.

In October 2020, the two unmanned tractors developed by the laboratory successfully completed the first round of full cycle unmanned farming task in the construction project of Sanjiang Biguiyuan farm in Beida, helping the construction of the world's first unmanned farm with an area of more than 10000 mu. In this test, Dongfanghong tractor has become the only well-known agricultural machinery products in China and abroad that meet the overall requirements and realize unmanned operation in all specified agricultural scenes.

after 陌生人把我拉进厕所强要了我_日本一区午夜剧场免费观看_国产精品专区第102页. has the most complete tractor product series in China, and has internationally advanced and domestic leading products with independent intellectual property rights. Its leading products such as large and medium wheeled tractors and non road power machinery have always maintained the first place in the domestic market.

"We have established Dongfanghong big data platform, which enables the tractor's various operation information to be transmitted to the background through the communication network." Wang Dongqing introduced that the laboratory is committed to the development of intelligent tractors, so that tractors have a more intelligent control system and optimize the handling and stability of tractors.

With the power shift tractor, continuously variable speed tractor, precision variable compound working machine, high efficiency combine harvester, etc "Luoyang intelligent manufacturing" will go to the domestic and foreign markets, Wang Dongqing is full of confidence, and China's agricultural machinery equipment manufacturing industry will usher in a broader prospect.

 

陌生人把我拉进厕所强要了我_日本一区午夜剧场免费观看_国产精品专区第102页

http://5.54j431.cnhttp://1.54j431.cnhttp://8.54j431.cnhttp://0.54j431.cnhttp://0.54j431.cnhttp://2.54j431.cnhttp://4.54j431.cnhttp://8.54j431.cnhttp://7.54j431.cnhttp://5.54j431.cn

陌生人把我拉进厕所强要了我_日本一区午夜剧场免费观看_国产精品专区第102页

http://5.54j431.cnhttp://5.54j431.cnhttp://5.54j431.cnhttp://3.54j431.cnhttp://3.54j431.cnhttp://0.54j431.cnhttp://4.54j431.cnhttp://9.54j431.cnhttp://1.54j431.cnhttp://8.54j431.cn