Rock drilling machinery and pneumatic tools

2 introduced the working principle of the control circuit. 2 machine magazine, Zhongyi Yimin road construction machinery and construction machine milling machine is the necessary equipment for road maintenance mechanization. This paper introduces the structural characteristics and market prospects of the main technical parameters of the 2000 type asphalt pavement milling machine developed by Zhenjiang Huachenhua Access Surface Machinery Co., Ltd.

0200166 Optimization theory applied in the mechanized construction of asphalt pavement, Zhong Lingjie, road construction machinery and construction mechanization. 2002.2223 For the case of multi-mixing station feeding and multi-site construction at the same time, the optimization algorithm is used to determine the optimal supply quantity of each mixing station in different construction stages, so that the production can be arranged reasonably and the transportation vehicles can be dispatched. 2 ginseng 2GJ200167CMI track slipper paver automatic leveling system application technical journal, Zhong Zhou Zhen Feng, road construction machinery and construction mechanization. 2002.2829 introduced the working principle of the 0. 1 series paver automatic leveling system, the setting adjustment and control method of leveling during use, and pointed out the precautions for the operation. 1 reference 1200168 stable soil pavement mixing equipment comparative analysis and technical improvement publication, Zhongyao Wenhua, road construction machinery and construction mechanization. 2002.4 comparative analysis of domestic stable soil mixing equipment technology maintenance and maintenance cost control and advantages and disadvantages, and introduced the method of technological innovation in actual work. GJ200169 road maintenance mechanization preliminary publication, Zhongshu Hongmei road construction machinery and construction mechanization. 2002.5355 With the increase of the total mileage of highways, the road maintenance mechanization has been put on the agenda. Combining the practical experience and experience in practical work, this paper analyzes the questions that need to be solved and puts forward opinions on how to improve the mechanization process. Lutian rock drilling machine and pneumatic tool 020016120 is based on the computer simulation of the air chamber pressure signal of the pneumatic rock drilling equipment of the Elbow 1 person 8, the Chinese and Korean army, road construction machinery and construction mechanization. In 2002, using 18 visualization software, the computer simulation of the pressure signal of the pneumatic chamber was carried out, and the results were related to the performance requirements of the normal operation of the wind. Prove the validity of the study. 21 gin 6 road series drill bit, suitable for threaded connection of aperture 6414, 1 claw and 32 to 5 butyl 68. The structure is optimized by computer to ensure optimal drilling procedures for different rock formations. GJ20016122 double-layer vault hard alloy bit publication, Ying Wei, Ding Xian 1.

Numa's new drill-welded double-layer carbides have a higher wear resistance than the standard drills after initial grinding. The latter drills hard rock every 9012 and needs to be ground after the footage. Tests show that the new drill bit has improved drilling efficiency before scrapping. 25.GJ20016123 patent rock drill has working cylinder and valve. Control cylinder and valve, two cylinders can adjust the forward and reverse stroke of the hammer. A pneumatic accumulator is placed in the intake passage, and a protective valve is placed between the two cylinders to maintain the required compressed working pressure.

The hole bottom scraper magazine, Russia EzopoBH.r hole bottom chip picker is designed according to the Russian cyclone 1375348 of the hydrocyclone, can obtain a large amount of coarse cuttings without core drilling, so there is no need to use a large pump. It also solves many related problems such as taking samples of cuttings, reducing the consumption of washing liquid, and avoiding the collapse of cuttings. The question of the existence of the Gaosen machine standard and the solution to its solution, Zhong Zhang Yucheng drilling pneumatic tools.

In the affirmation of the standard work of the air-leg rock drill standard.

GJ20016126 Vickers became the successful bidder of the engineering tank system plan, and the Chinese Li Peng Foreign Army Engineering Corps Newsletter. The 200 article describes the situation in which Vickers Defense Systems won the contract for the engineering tank system. Through the contract, the British Army will receive 33 Vikings and Fantasy Bridges and 33 Trojans for flexible clearing minesweepers. Hercules is able to carry and erect an aluminum bridge made by Vickers with a span of 261 and 13.5 jaws and capable of carrying fully armed occupants. Troy is able to clear obstacles on the battlefield and open up minefield access. The equipment includes a winch and a blade. In front of the vehicle, there is a visceral bandwidth mine plough and a channel identification system device produced by Pearson Engineering. The car also carries some bundles of firewood to fill the trenches, and towed a vehicle-mounted large-bellied snake rocket to advance the mine-sweeping system. 012,016127 An armored reconnaissance vehicle hydraulic lifting mechanism hydraulic system analysis journal, Journal of Li Senchang, Academy of Armored Engineering, 20002.1418 The working principle and hydraulic system of the 32-type hydraulic lifting mechanism of an armored reconnaissance vehicle. Analysis of the lifting mechanism solves key technical difficulties such as motion balance and long-term locking.

On the basis of the status quo and development history of tank repair vehicles, according to the current national standard revision principles and relevant standardization policies, through research and analysis, it points out that the standard of the structure of the Qiaoding 167494 gas-leg rock drill is in the content of the version, especially in the product. The question of the indicator system and the setting of the basic parameter values ​​also proposes solutions to these problems.

Journal of Jingqiang Armored Force Engineering College, Wenyicheng Machinery Journal.

The article expounds the characteristics of tank repair vehicles and their status and role in modern warfare. Through the detailed introduction of the status quo and development trend of the rescue vehicles of foreign military tanks, the idea of ​​developing our new tank rescue vehicles is proposed.

Britain increased the export volume of minesweeping ploughs, British, 101055, 5, 6fenseWeekly introduced the first batch of 33 British-made Pearson engineers to sweep the thunder system 3 rivers received by the Swiss army. 3. Pearson engineering equipment has developed several special Minesweep rigs can be quickly installed on a variety of armored vehicles. All mine sweeping systems are pre-configured to accommodate the French DEMETER system. The key components of the mine-sweeping plough are the front end of the vehicle, the shape of the blade, an electro-hydraulic power pack, the vehicle interface and the control components. The blade can safely move the mine at the front of the vehicle to the side. The blade is divided into several sections that can move freely according to changes in the ground. A mine sweeping plow can be installed by passing the pin through a towing ring mounted on the front end of the vehicle. For the M3 armored personnel carrier, the electro-hydraulic power box is installed in the car and protected by armor. The operation of the mine sweeping plow can be achieved by manipulating a simple manipulator mounted on the driver's position.

Li Zhi

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