The invention belongs to the technical field of elevator pulleys, and provides a steel-plastic composite pulley for an elevator, the steel-plastic composite pulley comprises an upper die, a middle die and a lower die, the top end of the upper die is fixedly provided with a feed inlet, the inner side wall of the upper die is fixedly provided with an upper adjustable support, the inner side wall of the lower die is fixedly provided with a lower adjustable whole block, and a metal net ring is fixedly installed between the upper die and the lower die. A metal steel core is fixedly mounted in the metal net ring; metal and engineering plastic are reasonably combined together, the defects that a plastic product is unstable and poor in strength are effectively overcome, meanwhile, the outer ring of the metal net ring is fixedly connected with the steel sleeve of the metal net ring in a riveting or welding mode, it is guaranteed that the metal steel core and the steel-plastic composite pulley for the elevator have permanent holding force, and the service life of the steel-plastic composite pulley is prolonged. The metal steel core and the steel-plastic composite pulley for the elevator can never loosen and fall off, the stress of MC on the periphery of the steel sleeve can be well released through combination of the steel sleeve and the metal net ring, and it is guaranteed that the steel-plastic composite pulley for the elevator does not crack under the load condition.
本发明属于电梯滑轮技术领域,提供了一种电梯用钢塑复合滑轮,包括上模、中模和下模,上模的顶端固定安装有进料口,上模的内侧壁固定安装有上可调整支架,下模的内侧壁固定安装有下可调整整块,上模和下模之间固定安装有金属网圈,金属网圈的内部固定安装有金属钢芯;本发明合理的将金属和工程塑料结合在一起,有效的解决了塑性产品不稳定强度差的缺点,同时金属网圈外圈采用铆接或焊接的方式与其钢套固定连接,保证了金属钢芯与电梯用钢塑复合滑轮具有永久的抱紧力,金属钢芯与电梯用钢塑复合滑轮才能永不松动和脱落,且钢套和金属网圈结合又能很好的释放MC在钢套外围的应力,保证电梯用钢塑复合滑轮在负载的情况下不开裂。
Steel-plastic composite pulley for elevator
一种电梯用钢塑复合滑轮
2023-06-27
Patent
Electronic Resource
Chinese
LOCALLY MAGNETIC PULLEY FOR AN ELEVATOR AND ELEVATOR WITH SUCH PULLEY
European Patent Office | 2018
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