The invention provides a rigidity-adjustable chain structure for lifting equipment, and belongs to the technical field of engineering equipment. The rigidity-adjustable chain structure comprises a chain and a hydraulic pump, wherein the free end of the chain is suspended; the other end of the chain is connected with the hydraulic pump; the chain comprises a plurality of inner chain plates and chain frames for connecting adjacent inner chain plates; each chain frame comprises parallel clamping pieces and two pin shafts fixed between the two clamping pieces; the pin shafts are rotationally connected to the inner chain plates; oil conveying pipes located on the same side of the chain are connected to one oil conveying pipe in parallel; the oil conveying pipes are communicated with the outputend of the hydraulic pump; a plurality of oil outlet holes penetrating through an oil passing cavity and the outer wall surface of each pin shaft are formed in the middle of each pin shaft; each pin shaft is sleeved with a sleeve; a bag cavity communicated with each oil outlet hole is formed in the middle of each sleeve; an avoiding annular groove is formed in the middle of an inserting hole; thesleeves are located in the avoiding annular grooves; and when oil pressure in the oil passing cavities is increased, the outer wall surfaces of the sleeves can abut against the circumferential surfaces of the avoiding annular grooves so as to limit rotation of the pin shafts relative to the inner chain plates. The rigidity-adjustable chain structure for lifting equipment has the advantage of capability of adjusting the rigidity of the chain.
本发明提供了一种起吊设备用的刚性可调的链条结构,属于工程设备技术领域。包括链条和液压泵,链条的自由端悬空,链条的另一端连接液压泵;链条包括若干内链板和连接相邻内链板的链架,链架包括相互平行的夹片和固定在两块夹片之间的两根销轴,销轴转动连接在内链板上,位于链条同一侧的各输油管并联在一输油管上,输油管与液压泵的输出端相连通,销轴的中部具有若干贯穿通油腔和销轴外壁面的出油孔,销轴上套设有一套管,套管的中部形成一个与各出油孔相通的囊腔,插孔的中部具有一避让环槽,套管位于避让环槽内,通油腔内油压增大时,套管的外壁面能够抵靠避让环槽的周面而限制销轴相对内链板旋转。本发明具有能够调节链条的刚性等优点。
Rigidity-adjustable chain structure for lifting equipment
一种起吊设备用的刚性可调的链条结构
2020-12-15
Patent
Electronic Resource
Chinese
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