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曳引机是电梯的一个主要部件,而曳引机承重梁则是承托这一主要部件的重要构件。由于电梯的结构特点,承重梁不仅承托着曳引机,整台电梯,包括轿厢、载重、对重、电缆、钢丝绳等都通过曳引机而吊挂在承重梁上,真可谓“系千钧于一梁”。然而,就是这么一个关乎电梯重要性能,关乎乘者生命安全的重要构件,由于其貌不扬,结构不复杂,一直未受到足够的关注,各种设计计算都未把它包含在内,甚至连设计资料、教科书都未把它算作电梯的一个部件而名列其位。在这种没有规范
The traction machine is a major component of the elevator, while the tractor load-bearing beam is an important component supporting this major component. Due to the structural characteristics of the elevator, the load-bearing beam not only supports the traction machine, but also the whole elevator, including the car, the load, the counterweight, the cables and the wire ropes are all hoisted on the load- Depend on a beam ". However, it is such an important component concerning the important performance of an elevator and the life safety of its occupants. Due to its unobtrusive appearance and uncomplicated structure, it has not received sufficient attention and has not been included in various design calculations. Even design information, None of the textbooks counted it as a part of the elevator. There is no specification in this