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黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì)   1 附錄 A             In the development of high-altitude operation truck   Aerial vehicles in China in the 1970s did not begin to develop, a late start, compared to a whole than in other countries 30 years later, after 30 years, our dedicated aerial vehicle developed rapidly and has become an important economic development in the transport and operating equipment, widely used in electricity, street lights, municipal, landscape, communications, airports, making (repair) ship, transport, advertising, photography a nd other high-altitude operational areas. For now, China can only produce 60,000 meters, 10 meters, 14 meters, 16 meters, 18 meters, 22 meters, 25 meters, 30 meters and other high-altitude operation truck, recently, special vehicles Co., Ltd. Xuzhou independent research and development 33 m mixed arm Aerial first prototype come out. China-made car to achieve a maximum height of aerial vehicles, breaking the foreign arm of 30 meters above the mixed aerial vehicles monopoly, to fill the gap. But overall, China's relevant foreign private car or with a certain gap, reason, in addition to a late start, an important reason is the existence of special vehicle manufacturing plant scattered, chaotic, poor, the domestic private car Most plants are purchased chassis modifications for the production of small plants, low level of mechanization, workshop-style hand many products of varying quality; in the production technology and equipment, due to the lack of scale transformation, artistic workers low, limiting the products to improve the quality and grade, which restricts the development of a dedicated vehicle. Most of the foreign substance is a special automobile plant assembly plant. According to the structure of its products division or organization of production specialization and cooperation, such as trailer axles, fifth wheel, support Tim, suspension, etc., tank truck, construction vehicles, special equipment etc key focus by professional plant production. Such as Japan, Kato Seisakusho Ibaraki Plant assume only two design and assembly work, all parts by 32 professional-processing available. Kato only 500 employees, annual output of lifting vehicles up to 3000 3500. East of God 230 company employees, annual output of the charter, special vehicles 12,000. Foreign (especially Japanese) manufacturers strict division of labor, specialization of each component requires to ensure the quality of each component and high-tech, and domestic manufacturers, most parts are their own production, quality and 黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì)   2 science and technology can not be compared with other countries. Although the product has some advantages on cost, but definitely not a single low-cost dedicated car industry's future development of the weapon and to improve the technological content of products is the only way, otherwise we can only wasted resources, and produce a small amount of added value . Made in China can not become synonymous with low quality. In addition there are special car production market confusion, poor supervision of the problem, some of the qualifications of small factories do not produce, the price advantage of using the modified car with the big manufacturers undercut the national special vehicle led to the current market, there is a strange phenomenon, a number of qualified enterprises to "hungry" or not a job, such as semi-trailer production in Shanxi province with less than 10 qualified companies, but companies are manufacturing semi-trailer are around in the seventies and eighties; Shandong, a special vehicle production base, with 126 vehicles, tuning, less than 20 procedures for legitimate businesses. These qualifications do not produce small plants, on the one hand, there are many products produced by the defect, a security's risk, but also disrupt the normal market, the impact of the development of special vehicles. These non-standard vehicles to enter the market will lead to serious consequences, the light of the high cost of repairs to customers and inviting, a major brewing severe accident.This lesson is not sensational. China's aerial vehicles (also including other special-purpose vehicles) in the general direction of development is good, both technically and development environment, we all hope he is a growing industry, the technical level to follow up even more than abroad, go abroad, accounting for foreign markets.In addition to our own research and development to focus on technology, but also create a good business environment. Not to the immediate interests of vicious competition. Government should take measures to come out and ban those who are not qualified small business, not a place for the so-called performance and deregulation.   黑龍江工程學(xué)院本科生畢業(yè)設(shè)計(jì)   3 附錄 B   發(fā)展中的高空作業(yè)車   高空作業(yè)車在我國于 70 年代未開始發(fā)展起來 ,起步較晚,較國外比起來整整晚  了30 多年,經(jīng)過 30 余年,我國高空作業(yè)專用汽車發(fā)展很快,已成為經(jīng)濟(jì)建設(shè)中的重要運(yùn)輸  與作業(yè)裝備,廣泛用于電力、路燈、市政、園林、通信、機(jī)場、造(修)船、交通、廣告、  攝影等高空作業(yè)領(lǐng)域。 就目前而言國內(nèi)只能生產(chǎn) 6 米、 10 米、 14 米、 16 米、 18米、 22 米、  25 米、 30 米等高度的高空作業(yè)車、日前,徐州專用車輛股份有限公司自主研發(fā)的 33 米混合  臂高空作業(yè)車第一臺(tái)樣機(jī)問世。該車達(dá)到了國產(chǎn)高空作業(yè)車的最大高度,打破了國外對(duì) 30 米以上混合臂高空作業(yè)車的壟斷地位,填補(bǔ)了國內(nèi)空白。  但總體而言我國的相關(guān)專用車還是與國外有一定的差距,究其原因,除了起步較  晚外,一個(gè)重要的原因是國內(nèi)的專用車生產(chǎn)廠存在散,亂、差等問題,國內(nèi)專用車生產(chǎn)廠大  多數(shù)都是為外購底盤進(jìn)行改裝生產(chǎn)的中小廠,機(jī)械化程度低,手工作坊式的多 ,產(chǎn)品質(zhì)量參  差不齊;在生產(chǎn)工藝工裝方面,由于缺少規(guī)模的技術(shù)改造,工人藝術(shù)水平低,限制了產(chǎn)品的  質(zhì)量和檔次的提高,制約了專用汽車的發(fā)展。而國外大部分專用汽車廠實(shí)質(zhì)是一個(gè)總裝廠。  其產(chǎn)品按結(jié)構(gòu)分工或組織專業(yè)化協(xié)作生產(chǎn),如掛車車軸、牽引座、支姆、懸架等,自卸車油  缸、  工程車輛的關(guān)鍵專用設(shè)備等均由各專業(yè)廠集中生產(chǎn)。  如日本加藤制作所的茨城工廠僅承  擔(dān)設(shè)計(jì)和總裝兩項(xiàng)工作,所有零部件分別由  32 個(gè)專業(yè)廠加工提供。加藤僅有職工 500 人,  年產(chǎn)起重汽車達(dá) 30003500 輛。東神公司有職工 230人,年產(chǎn)而包車、特種 車 12000 輛。國  外(尤其是日本)的廠商嚴(yán)格分工協(xié)作,每個(gè)部件都要求專業(yè)化,確保了每個(gè)部件的高質(zhì)量  及高科技含量,而國內(nèi)的廠商,多數(shù)配件都是都是自己生產(chǎn),在質(zhì)量和科技含量上無法與國  外相比。  雖然我們在產(chǎn)品成本上有一定的優(yōu)勢,  但單一的低廉絕對(duì)不是專用車產(chǎn)業(yè)未來發(fā)展  的的制勝法寶,提高產(chǎn)品的科技含量才是必由之路,否則我們只能虛耗

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