Renowned for reliable quality and sincere service, Hebi Shuangmin Mining Machinery ensures your complete peace of mind. Our Shuangmin JK single-rope winding hoist serves various applications. It is primarily used in coal, metal, and non-metal mines for both vertical and inclined shafts. Furthermore, this robust hoist safely elevates and lowers personnel, materials, and even large transport vehicles. Additionally, it reliably meets various other traction and transportation needs. Ultimately, it delivers outstanding performance with faster speed, superior stability, and enhanced safety features.
The JK single-rope mining hoist consists of the main shaft unit, low-speed coupling, speed reducer, high-speed coupling, electric motor, disc brake system, hydraulic station, lubrication system, depth indicator, operating platform, and electrical control cabinet.
During operation, the motor rotor actively transmits power. This power first flows through the high-speed coupling. Subsequently, it enters the high-speed shaft of the reducer.
Next, a two-stage gear system effectively reduces the speed. The low-speed coupling then reliably transfers this power to the main shaft assembly. Ultimately, reversing the motor’s direction smoothly controls the lifting or lowering of the container.
The main shaft assembly forms the robust core of the hoist. It is precision-engineered with a wheel hub, drum, and liner plates. For superior strength, the main shaft is forged from 45-grade steel and also undergoes normalizing heat treatment.
Furthermore, the drum is expertly welded from high-quality alloy steel. It then receives vibration or annealing treatment to significantly enhance its durability. A plastic liner with precisely designed rope grooves is also installed on the drum surface; this ensures orderly winding and effectively prevents rope biting.
Moreover, double-row spherical roller bearings are employed to self-align the shaft. This intelligent design guarantees reliable operation and simultaneously reduces maintenance needs.
The reducer can be configured with either a parallel-shaft or planetary gear design. This key component delivers high load capacity, powerful torque, and an extended service life. Furthermore, it ensures exceptionally smooth operation and offers excellent performance with easy installation.
A high-capacity gear coupling reliably connects the main shaft to the reducer. For the connection between the reducer and motor, an elastic pin coupling with a brake wheel is employed. This design effectively cushions any impact during machine start-up or stopping.
The depth indicator features a threaded design for precision. It also incorporates both fault protection and limit protection functions for enhanced safety.
The main valve assembly for the hydraulic system is manufactured using imported technology. It provides proportional pressure regulation, electrical time delay, and secondary braking functions. The system is equipped with two independent hydraulic stations. One serves as the main unit, while the other acts as a ready backup.
Pressure adjustment within the hydraulic system is achieved entirely through electrical control. The delay time can be continuously adjusted from 0 to 10 seconds to suit various operational needs.
The brake system utilizes a rear-mounted oil cylinder structure. This design effectively prevents oil leakage from contaminating the brake disc. It consistently ensures sufficient braking torque and proper shoe clearance. Moreover, new proximity switches accurately monitor brake shoe wear. This innovation significantly improves protection for the brake shoes.
The electrical control system features user-friendly human-machine interface (HMI) operation. It integrates advanced PLC programming and vector frequency control for modern, precise management. This hoist series offers two main electrical control strategies: resistance speed regulation and frequency conversion speed regulation. For fixed winch installations, Hebi Shuangmin Mining Machinery provides a specialized locking device. This safety feature effectively secures equipment during prolonged inactivity, thereby preventing potential hazards.
