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JD-1 Dispatch Winch
- Two‑stage planetary gear drive
- Dual brake with emergency auto‑stop
- Integrated depth indicator
- Compact welded base construction
JD-1 Dispatch Winch
▪ Two-stage planetary gear system & floating mechanism — The JD-1 dispatch winch achieves deceleration and transmission through a two-stage planetary gear train and floating mechanism. By controlling motor rotation and manipulating two brake bands, the drum delivers forward/reverse/stop motions for traction, lowering, and holding loads.
⏐ Depth indicator ⏐ Driven by gear engagement with the drum’s internal gear, the indicator’s lead screw rotates to display real‑time depth. All rotating parts adopt rolling bearings for smooth, reliable operation.
Main components
Motor (YBJ-11.4) Drum assembly Brake devices (x2) Welded base Protective guard Operator seat
Drum assembly: Three core functions — (1) wire rope winding for pulling/lowering, (2) speed reduction via built‑in planetary gears, (3) braking control through the drum brake disc. Compact structure, highly efficient.
Base frame: Fabricated from welded section steel. Motor bracket and bearing bracket are bolted at both ends; steel plate thickness varies according to stress distribution.
Brake system (dual independent brakes)
Two structurally identical brakes mounted on brackets. Left brake (drum side, near motor) controls drum rotation/stop and also acts as an emergency safety brake. Right brake (brake wheel side) functions as a clutch — when tightened, the drum engages for pulling loads.
In case of power failure, overload or current surge, the magnetic starter’s thermal relay cuts power to both the winch motor and the electric hydraulic pusher, instantly triggering the left brake for emergency stop. ✔ Safety brake automatic activation.
Brake lining: Asbestos material riveted onto brake shoes. Pulling the brake handle tightens the band around the drum/brake wheel to stop or hold.
⚠️ Critical operation note: Under any working condition, it is strictly forbidden to engage both left and right brakes simultaneously — risk of severe damage or malfunction.
Technical specifications
| Item | Unit | JD-1 |
|---|---|---|
| Drum Dimensions (Diameter × Width) | mm | φ224 × 307 |
| Rope Capacity | m | 400 |
| Wire Rope Diameter | mm | φ12 |
| Max. Static Tension (Outer Layer Rope) | kN | 10 |
| Speed of Outer Layer Rope | m/s | 1.033 |
| Electric Motor Model | / | YBJ-11.4 |
| Motor Power | kW | 11.4 |
| Motor Speed | r/min | 1460 |
| Winch Weight (net) | kg | 542 |
| Overall Dimensions (L×W×H) | mm | 1120 × 766 × 727 |
* All values based on standard configuration. Design subject to continuous improvement.
Integrated current-limiting thermal relay (magnetic starter) Emergency brake auto‑trigger
