Explosion -proof electric gourd is generally used in a single roll tube structure, and the wire rope is wrapped in a single layer on the roller. In order to increase the rise height, some manufacturers have used the two -layer winding method of wire rope. This method has high requirements for the manufacturing of the roller device, which increases the rope board. The guide rope is changed to a rope, and the fire -breaking limiter is changed to a itinerary. However, due to poor reliability, it is difficult to be widely used due to poor reliability, which is difficult to create a limited function that lacks the limits of the limit. Therefore, many manufacturers have tried to increase the diameter of the single roll tube to increase the height, but this method has the following shortcomings:
Due to the increase in diameter of the roll tube, the lifting speed of the electric gourd will inevitably increase, and the power of the lifting motor must be increased accordingly. When the power of the existing lift motor is not enough, it must be re -developed to develop a new motor, which greatly extend the delivery cycle and increases the development cost of the new motor. It is also a problem.
Due to the increased diameter of the rolling tube, the distance from the hook center to the installation track will inevitably increase, reducing the net height of the rising hook, and restricting the user's use when the height of the electric gourd installation track is restricted; The device, the middle shaft, the axis, the guide rope, and the roll device must be redesigned and manufactured. These factors seriously affect the supply period and manufacturing cost of electric gourds.
The quality of electric gourds is difficult to guarantee under the condition of tight time, urgent task, and inadequate workflow.
Due to the poor versatility of the parts of the standard electric gourd, it affects the replacement of parts during maintenance.
