Elevator Tractor,Gearless Traction Machine Motor

Elevator Traction Machine

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Wire Rope Fastener

BASIC INFO
The pitch diameter of the traction sheave groove has the manufacturing tolerance, the diameter of the steel wire rope also has producing tolerance, thus, there is a cumulative error from the actual operation of each wire rope running in the elevator. According to the estimation of the 2:1 suspension car moves to 1 meters, rope running deviation is about 1 mm, which is called the 1 / 1000 principle (for traditional 1:1 suspension this value is about 1 / 3000), so the error is very considerable! And carefully adjustment of the tension can not solve the problem once and for all, this is one of the root causes of tension deviation between the rope.

In cannot use the constant spring, in this conditions, try to compensate effect of increasing rope is the most realistic choice, compensation effect to increase the rope will reduce the stiffness of the springs, thereby greatly increasing the deformation of the spring! tension balance of wire rope is good, not only can extend the life of the rope, but also significantly prolongs the wear life of the elevator traction wheel!

To this end, our company introduces a whole new generation of ST series rope fastening products, using SC quality alloy steel as raw material, FEM three dimensional interpretation of the rope is fully optimized spring stress design, combined with automatic precision CNC machining equipment, in particular, the first time the counterweight rope fastener / car rope fastener were matched manner at the international level, in order to do everything possible to maximize the compensation effect of the rope.
wire rope fastening drawing
wire rope fastening drawing

 Main Parameter
mm

8MM wire rope
(ST8)

10mm wire rope
(ST10)

Economic Type:
A

δ

23.1/15.7

15.7/9.3

L1

110

110

L2

310

310

Nut

M12

M14

Normal Type:
B

δ

54.0/37.3

37.3/22.5

L1

220

220

L2

420

420

Nut

M12

M14

High Level Type:
C

δ

78.4/54.4

54.4/32.7

L1

330

330

L2

530

530

Nut

M12

M14


Deformation δ refers to the spring camber in loaded 100kg conditions (on the counter-weight spring / car spring); other specifications can be customized.
wire rope fastener

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