A movable protective door is arranged on the front side of the top of the guide rail type freight elevator workbench. The top left, right and rear sides of the workbench are provided with guardrails. The front and rear ends of the pulley of the goods elevator are connected with a fixing frame through a rotating shaft, and the fixing frame is fixed on the side wall of the workbench.
The braking mechanism of the freight elevator includes two sets of friction plates. The friction plates are symmetrically distributed on the front and rear sides of the pulley. The surface of the friction plate is covered with anti-skid pads. The end of the friction plate away from the pulley is fixedly connected with a connecting rod. An electromagnet is installed in the installation groove, and symmetrically distributed chutes are arranged at the front and rear ends of the installation groove. The sliding block is slidably installed in the sliding groove. A spring is connected to the electromagnet.
The freight elevator is driven by the motor to rotate the rotating rod, and the winch is used to wind up or put down the wire rope to drive the worktable to rise and fall; by setting pulleys and slide rails, the worktable is more stable during the lifting process; the guardrail improves the safety of the worktable; when When emergency braking is required, the motor stops, and the electromagnet is energized to generate a magnetic force, which attracts the slider to move toward the electromagnet, thereby driving the friction plate to press on the surface of the pulley, using friction to stop the rotation of the pulley and slowing down the movement trend of the workbench. Cooperate with the existing motor brake to achieve better braking effect. The rail-type freight elevator has stable lifting action, good safety and good braking effect.
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