Domestic electric wire rope hoist is from the last century 50's began to copy form production and development. 1949 July Shanghai general machinery factory of the first successful trial of imitation K type DEMAG company of German 1.5T and 3T general purpose electric wire rope hoist, and put into small batch production, but the factory in 1954, production of steam turbine. In 1953, Tianjin lifting equipment factory (the original Tianjin seventh Machinery Factory) imitation of former Soviet Union 40's TB type hoist trial production of 1t and 2T general purpose electric wire rope hoist TV electric wire, setting for rope hoist. Also in 1954 the trial production of 3T and 5T hoist, in 1957 completed the revision of design and production of 0.25t~5t series of products, from TV have been as China's first generation of hyacinth and the emergence of.
To hoist for lifting mechanism of electric single beam, home to Tianjin hoisting equipment factory is the first copy of former Soviet Union 40's HK type truss type single beam crane, 1954 began trial production, mass production in 1956, 1957 by the Tianjin hoisting equipment factory and Beijing crane factory jointly conducted the first changes to the production of map the paper, setting for type A571 (1957 first rectification), as China's first generation of electric single beam crane, has been producing until 1987 is eliminated and the production (1987 January onwards are reproduction).
To hoist for lifting mechanism of electric single beam suspension crane, continue to Tianjin hoisting equipment factory is the first copy of former Soviet Union 40's II type K truss type single beam crane, and conducted a series of production, is China's first generation of electric single beam suspension crane, hoisting chain, has been the production to 1987 it is eliminated and the production (1987 January onwards are reproduction).
The beginning of 1963 Tianjin hoisting equipment factory design and production of explosion-proof type electric wire rope hoist, and came up with the explosion-proof electric single girder and suspension crane series products. 1964 started by Tianjin lifting equipment factory, Shanghai lifting equipment factory, Chongqing crane factory, Dingxi crane factory, Xi'an crane factory, Shenyang crane factory and Beijing Hoisting Transport Machinery Research Institute jointly design, trial manufacture and begin production of CD, MD type, MD type of CD series of gourd, gourd as China's second generation of gourd, Shouban gourd, is the current mainstream products.
A571 electric single chat crane and PI K electric single beam suspension crane and CD, MD type hoist necessary use, due to the structure and performance and other reasons there are many problems. In 1974 by the Tianjin hoisting equipment factory on type A571 electric single girder crane and K electric single beam suspension crane was updated, their own design and production of DL type electric single beam crane and DX type electric single with CD, MD type hoist beam suspension crane. In 1976, DL type and DX type products based on the Tianjin lifting equipment factory, open source crane factory, Chongqing crane factory crane factory, Changsha, Luoyang crane factory and Beijing hoisting transport machinery research institute co design trial manufacture and production, 1977 to finalize the design for LD type electric single beam crane and LX type electric single beam suspension crane, as China's second generation of electric single beam crane and suspension crane products, has been producing for the domestic leading products is still. Go up century 70 time our country has successively developed LB explosion-proof electric single beam crane, LXB explosion-proof electric single beam suspension crane, type LH electric wire rope hoist double beam crane series products etc.. Domestic CD1/MD1electric wire rope hoist series structure is improved in 1975, the main configuration: straight tooth conical motor, Quenched and tempered gear, cast iron drum, casting shell, conical disc brakes, hanging trolley; domestic HC, QH, ZH series structure is improved in 1990, configuration and 75 years are the same; domestic AS type electric wire rope hoist introduced the serial structure in 1983, configuration are: conical motor straight tooth gear, quenching and tempering, cast iron drum, welded frame shell, conical disc brakes, hung or side hanging trolley.
LH electric wire rope hoist double beam crane is in the 70's to Wuhan crane factory as the representative, own development and design HC electric wire rope hoist as the lifting mechanism of China's first generation of electric wire rope hoist double beam crane.
From the 70's of the last century to the early 80's, hoist crane has entered into a new stage of the introduction of the development of. Tianjin lifting equipment factory, the introduction of AS type STAHL Germany's electric wire rope hoist a full range of technology; Nanjing factory, Beijing lifting equipment factory and Shanhaiguan lifting equipment factory, three joint introduction of chain hoist technology of German DEMAG company; into the mid 80's, with the Nanjing Hoisting Machinery long joint design and development type H electric wire rope hoist, Chongqing crane factory based combination design and development of the hoist gantry crane series products, Hebei Pentium lifting. AS type hoist technology with the introduction of the 80's advanced level in the world, China's third generation of hoist is bound to type AS as the representative.
Foreign electric wire rope hoist is from Finland Kone company, SWF company, Meiden company in Japan, Germany in 2000 to 2001 was improved. Main configuration: on squirrel cage motor, cylinder helical hardened gear, steel roll of 2000 focal parallel structure, the electric motor is arranged in the reel internal tube, rod frame assembled shell, plane disc brake, flat 2000 focal balance weight side hanging trolley, horizontal wheel orientation.
