【正文】 rmine the working device of the stiffness, strength! Lift cylinder finally design. Keywords: Three wheels； The lifting device； CAXA；evaluat ion of scient if ic developm ent . Natur e secur it y t ype natur e securit y is t o m aint enance people of healt h value f or t arget , t hrough st rengthening secur it y based m anagement , and r is k m anagement , and equipm ent m anagement and t echnology super vision, ensur e pr oduction in t he people, and r eal, and syst em, and system, elem ent s secur it y reliable, and har m ony unif ied, f ul cont rol var ious against f actor s, achieved t hought no slack, and management no em pty document , and equipm ent no hidden, and syst em no blocked, and unit zer o nonst opped. Qualit y and ef f iciencyqualit y benef it is t o adhere t o t he enter prise survival, pr ofit and developm ent business t rut h, adher e t o t he all act ivit y is econom ic activit y, all cost s can be cont roled, m oney should not be wast ed m anagement philosophy, m anagement analysis, t o im prove management qualit y, im prove cost contr ol capacit y and m ar ket petit iveness. Innovation of science and t echnologyscience and t echnology innovat ion is t o play t he r ole of science and t echnology as t he prim ar y pr oductive f or ce, act ive use of new t echnologies, new m at erials, new pr ocesses, new equipm ent, incr ease investm ent in science and t echnology, st r engt hening scient if ic and t echnological t r aining, speeding up t r ansf orm ing scient if ic and t echnological achievem ent s, f orm ing a num ber of pr opr iet ary t echnology, enhancing core pet it iveness. Resourcesavingt her esour ces saving ent er pr ise was t o r educe coal consumption, wat er consumpt ion, elect r icit y at t he core, enhance t he operat ion of lean m anagement o r ealize low consum ption, high ef f iciency, r educe pr oduct ion cost s. Second is t o st r engt hen t he business, f inancial, m ater ial, inf or mation and t he opt im ization of or ganizat ion and m anagement , s aving t he int er nal t r ansaction cost s. Har monious developm ent of har monious developm entis t o constr uct a f oreign envir onm ent f or developm ent . XING r efer s t o t he int er nal secur it y f ir m and int er nal m anagem ent of t he int er nal m anagement measures are ef f ect ive, har monious. For eign cur rency m eans Enter prise coor dinating developm ent of homeopathy, well, get along wit h t he neighbor s bet ter. ( B) XX 2021 f ive ent er prises building int r insic saf et y power pany goals ar e: unplanned outage 0 t im es. Class of disor der s 0, 0 is equivalent f or ced out age r ate. No per sonal inj ur y ac cident , m at er ial and equipm ent accident s do not occur, no f ir e, no envir onment al polut ion accident . Enterprise integrated to achieve zero cases of violation, zero accidents, zero. Quality goal is: when generating capacity ≥ 7. 5 bilon kilowat t , sales of over 7. 11 bilon kWh, total profits of ≥ milon Yuan, . . . BFS++、 PI、 M IS、 SCM I nfor mation syst em s inf r astr uct ure, f uly int egr at ed inf orm at ion system t o r ealize inf or mation r esources shar ing。 關(guān)鍵詞：三輪叉車； 起重裝置； caxa； evaluat ion of scient if ic developm ent . Nat ur e securit y t ype nat ur e securit y is t o m aint enance people of healt h value f or t ar get , t hr ough st r engt hening securit y based m anagem ent, and r is k m anagem ent, and equipm ent m anagem ent and t echnol gy super vision, ensur e pr oduction in t he people, and r eal, and system, and syst em , elem ent s ecurit y r eliable, and har m ony unif ied, f ul cont r ol var ious against f act or s, achieved t hought no slack, and m anagem ent no em pt y docum ent, and equipm ent no hidden, and syst em no blocked, and unit zer o non st opped. Qualit y and ef f iciency qualit y benef it is t o adher e t o t he ent er pr ise survival, pr of it and developm ent business t r ut h, adher e t o t he all act ivit y is econom ic activit y, all cost s can be cont r oled, m oney should not be wast ed m anagement philosophy, m anagement analysis, t o im pr ove m anagement qualit y, im pr ove cost cont r ol capacit y and m ar ket pet it iveness. I nnovat ion of science and t echnol gyscience and t echnol gy innovat ion is t o play t he r ole of science and t echnol gy as t he prim ar y pr oductive f or ce, active use of new t echnol gies, new m at er ials, new pr ocesses, new equipm ent , incr ease invest m ent in science and t echnol gy, st r engt hening scient if ic and t echnol gical t r aining, speeding up t r ansf orm ing scientif ic and t ec hnological achievement s, f or ming a num ber of pr opr iet ar y t echnology, enhancing cor e pet it iveness. Resour ce savingt her esour ces saving ent er prise was t o r educe coal consum pt ion, wat er consum pt ion, electr icit y at t he cor e, enhance t he oper ation of lean m anagem ent o r ealize low consum ption, high ef f iciency, r educe pr oduct ion costs. Second is t o st r engthen t he business, f inancial, m aterial, inf or m at ion and t he opt imizat ion of or ganizat ion and m anagem ent, s aving t he int er nal t r ansaction cost s. Har m onious developm ent of har m onious developm ent is t o const r uct a f or eign envir onm ent f or developm ent . XI NG r ef er s t o t he int ernal securit y f ir m and int er nal m anagem ent of t he int er nal m anagement m easur es ar e ef f ective, harm onious. For eign cur ency m eans Ent er prise coor dinat ing developm ent of hom eopat hy, well, get along wit h t he neighbor s bet t er . ( B) XX 2021 f ive ent er pr ises building int r insic saf et y power pany goals ar e: unplanned out age 0 t im es. Class of disor der s 0, 0 is equivalent f or ced out age r at e. No per sonal i