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A Winding Device with A Pneumatic Brake

Abstract:

A winding device with a pneumatic brake includes reel assembly machinery, power deceleration machinery, rotary joint assembly mechanism, braking mechanism through pneumatic control, torque limit and travel limit protection mechanism, pneumatic control components and electrical control mechanism. The utility model is an electric winding device which can effectively compress the product size by adjusting the air pressure and adjusting the braking torque. According to the working characteristics of the shield machine, when the winding device retracts the cable, the motor is powered on and drives the reel to drag the water pipe from the ground into the reel. When the winding device conducts cable laying, the motor loses power, and the water pipe is dragged out from the reel to the effective distance by external force. At this time, the air pressure can be adjusted by 0-0.8MPa, and the friction torque of the brake can be adjusted to easily drag the water pipe out. The utility model greatly meets the demand of the shield machine market, can comprehensively replace similar foreign products, and has the advantage that it is cost-effective.

Technical Field:

The utility model relates to the winding device for a shield machine, in particular to the winding device with a pneumatic brake.

Background Art:

With the continuously growing demand and high-end of China's mechanical equipment industry, so far, China's urban subway projects have an increasing demand for shield machines. Domestic shield machines have broken through foreign monopoly and most of them have been localized. Corresponding domestic manufacturers also have substitutes of the supporting water pipe drum. However, according to the actual working conditions of the shield machine, the water pipe drum with pneumatic control cable laying is still from foreign countries. The domestic manufacturers use the hysteresis water pipe drum instead. When the diameter of the water pipe is too large and the coiling length is too long, the coiling torque of the hysteresis water pipe drum is often insufficient. The product size is too large, which may be easily limited by the installation space of shield machine, which restricts the development of products.

Effect:

The utility model is a winding device with a pneumatic brake, which is an electric winding device which can effectively compress the product size by adjusting the air pressure and adjusting the braking torque. According to the working characteristics of the shield machine, when the winding device retracts the cable, the motor is powered on and drives the reel to drag the water pipe from the ground into the reel. When the winding device conducts cable laying, the motor loses power, and the water pipe is dragged out from the reel to the effective distance by external force. At this time, the air pressure can be adjusted by 0-0.8MPa, and the friction torque of the brake can be adjusted to easily drag the water pipe out. The utility model greatly meets the demand of the shield machine market, can comprehensively replace similar foreign products, and has the advantage that it is cost-effective.