Sensor of lift-typed elevator and safety device for digital-displaying electronic over-speed governor
A safety device and digital display technology, applied in elevators, transportation and packaging, etc., can solve the problems of large mechanical wear, difficulty in adjusting the speed of the mechanical speed limiter, and insufficient speed measurement accuracy and sensitivity
Inactive Publication Date: 2009-06-03
白士良
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Problems solved by technology
[0002] The current mechanical speed limiter used in lift elevators relies on the speed limiter wire rope to drive the speed limiter sheave synchronously with the elevator car running up and down to monitor the running speed of the car, so its mechanical wear is relatively large, and the mechanical speed limiter Only the fault braking speed is set on the above fault braking speed, but it is difficult to detect the abnormal speed before the fault braking speed. In addition, the mechanical speed limiter is difficult to adjust the speed measurement intuitively, so the speed measurement accuracy and sensitivity are not high enough
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[0038] As shown in Figure 4, the safety bar 8 and the bar cover 28 are arranged on the left and right sides above or below the outer frame of the car 3, and are fixed on the two side columns 2 and the supports 34, 35; Reciprocating expansion and contraction in 28; the rear end of safety bar 8 is connected with the front end of linear motor moving iron 72; Linear motor 71 is motor main body, built-in armature coil; Blocks 70, 74, 77 are arranged on the linear motor moving iron 72 or on the support plate 78; the linear motor moving iron 72 is limited in the range of motion of the forward extension or retraction between the set positioning block 74 and the positioning block 70,77 ; When it is necessary to prevent the car 3 from rushing to the top or falling, the safety bar 8 will pop up and be blocked by the pillars 42, 41;
[0039] Pillar 42 is arranged on 2 sides of the elevator shaft wall 48 of each floor, and its height is arranged after it has stopped the overspeeding operat...
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The invention provides a sensor of a lift-typed elevator and a safety device for a digital-displaying electronic over-speed governor. The sensor and the safety device are characterized in that the sensor and the safety device comprise sensors 84, and digital display electronic over-speed governors 97 which are respectively arranged on an elevator machine room, a car and a well wall; light screens or sensing plates 86 of all sensors are arranged on the elevator well wall 48 or a guideway 40 with the equal distance; when the malfunction occurs to the running speed of the car, the electronic over-speed governor can output 1 or more circuits or working currents, start an alarm device and an elevator malfunction braking device, sound the alarm in time and lead the elevator car to stop safely. The safety device for the electronic over-speed governor can avoid the defects that the mechanical over-speed governor is easy to be abraded mechanically, the regulating and speed measuring are difficult to be objective, the maintenance cost is high, the speed-measurement precision is not high enough, and abnormal speed before the malfunction braking speed is difficult to be perceived owning to lack of pre-warning measures. The safety device for the elevator car fills up a blank on the use of electronic over-speed governor on the elevator; the device has various structural forms and can be selectively used according to the requirement.
Description
technical field [0001] The invention relates to an elevator safety device, in particular to a digital display electronic speed limiter safety device used on a vertical elevator. Background technique [0002] The current mechanical speed limiter used in lift elevators relies on the speed limiter wire rope to drive the speed limiter sheave synchronously with the elevator car running up and down to monitor the running speed of the car, so its mechanical wear is relatively large, and the mechanical speed limiter It is difficult to detect the abnormal speed before the fault braking speed. In addition, the mechanical speed limiter is difficult to adjust the speed measurement intuitively, so the speed measurement accuracy and sensitivity are not high enough. SUMMARY OF THE INVENTION [0003] The object of the present invention is to provide a sensor and digital display electronic speed limiter safety device of a lifting elevator; the sensor is arranged on or below the outer frame...
Claims
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IPC IPC(8): B66B5/04
Inventor 白士良
Owner 白士良