Electronic control brake device for elevator cage
An elevator car and braking device technology, applied in the field of electronically controlled elevator car braking devices and safety protection devices, can solve the problems of insufficient friction, difficult installation, difficult recovery, etc., and achieve low braking force requirements and trigger Simple, easy-to-install effect
Active Publication Date: 2014-12-17
江门市蒙德电气股份有限公司
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Problems solved by technology
Its disadvantages are: when the braking force of the brake device is insufficient, the friction force is insufficient due to the wear of the wire rope or the traction sheave, or the mechanical connection between the brake device and the traction sheave fails, it may cause the elevator car to move with the door open , causing shearing accidents, and may also cause the elevator car to rush to the top or squat to the bottom
[0008] The rope clamp is an electronically controlled braking device, which can clamp the wire rope to stop the elevator car when the elevator control device detects an abnormality. The requirements are very high, and it has the disadvantages of short life, high cost, difficult installation and difficult restoration
Method used
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[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and the detailed implementation manner and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.
[0021] Such as figure 1 As shown, the structure diagram of an electronically controlled elevator car braking device provided by the present invention includes a speed governor 2 , a rope clamp 3 and a safety gear 9 .
[0022] The speed governor 2 is arranged on the top of the elevator car 4, and the speed governor 2 is preferably a conventional centrifugal or resonance speed governor, including a sheave 1, a wire rope 5, a tensioning pulley 6, an overspeed switch and action components, etc., when When the running speed of the elevator car 4 exceeds the set speed, the output action of...
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The invention discloses an electronic control brake device for an elevator cage. The electronic control brake device comprises a limiter arranged above the elevator cage; a steel wire rope for drawing the elevator cage penetrates through the limiter; a guide rail on which the elevator cage moves is provided with safety tongs; the steel wire rope is provided with a connection rod which is connected with one end of a draw bar, and the other end of the draw bar is connected to the safety tongs and is used for triggering the safety tongs; a rope gripper for clamping the steel wire rope is arranged beneath the limiter; electromagnet which drives the rope gripper to act to clamp the steel wire rope is arranged in the rope gripper; and an electromagnet coil is arranged in the electromagnet. According to the design, the rope gripper which can trigger the safety tongs to act is arranged, so that the action of the safety tongs can be subjected to electronic control, and the electronic control brake device has the characteristics of low requirement on braking force, no limit to limiting velocity, capacity of triggering the safety tongs differently, and simplicity in triggering and is easy and convenient to install.
Description
technical field [0001] The invention relates to a safety protection device for a traction elevator, and belongs to the technical field of elevator safety protection, in particular to an electronically controlled elevator car braking device. Background technique [0002] An elevator is a vertical transportation tool used in a building. It is very important to be able to safely and reliably stop the elevator and keep the elevator in a stopped state. This is a necessary condition for the elevator to be used. The vast majority of elevators are traction elevators pulled by wire ropes. There are three common braking devices for traction elevators: [0003] (1) Brake device. Generally installed on the elevator traction machine, it acts on the shaft of the traction sheave that drives the traction wire rope, and stops the wire rope through the friction force of the traction sheave and the traction wire rope, so that the elevator car stops running and remains in a stopped state. [...
Claims
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IPC IPC(8): B66B5/24B66B5/22B66B5/04
Inventor邓之江
Owner江门市蒙德电气股份有限公司