Speed-limiting protection device for elevator
A protection device and elevator technology, applied in transportation and packaging, elevators, etc., can solve the problems of high price, bulky, and high elevator maintenance costs, and achieve the effect of simple structure and ingenious concept.
Inactive Publication Date: 2017-06-23
郝俊峰
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Problems solved by technology
The importance of the overspeed protection of the elevator is self-evident. In the prior art, the overspeed protection is mainly realized through the speed limiter, but the structure of the speed limiter is complex, bulky and expensive, which causes the subsequent maintenance cost of the elevator to be high. One of the main reasons for the high
In reality, reports of various elevator accidents caused by untimely elevator follow-up maintenance due to cost issues have been repeatedly disclosed
Method used
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[0010] The power of the elevator is provided by the motor. Under the control of the controller, the motor drives the reducer, and then drives the gear to realize the corresponding lifting movement. The elevator speed limit protection device of the present invention, by adding a ratchet 1 device on the power shaft 2 (that is, the output shaft of the speed reducer) of the elevator movement, and then controlling the rotation state of the ratchet 1 through the matched ratchet 3, thereby Realize the function of speed limit protection.
[0011] Such as figure 1 , 2 As shown, the elevator speed limit protection device includes a ratchet 1, a pawl 3 and an oil cylinder 4, the ratchet 1 is fixed on the power shaft 2, and the ratchet 3 and the piston rod of the oil cylinder 4 that match the ratchet 1 pass through the ratchet -The oil cylinder hinge shaft 7 is hinged.
[0012] The tail of the ratchet 3 is hinged to the support rod 8 through the ratchet hinge shaft 6 .
[0013] The e...
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The invention provides a speed limiting protection device for an elevator, which includes a ratchet, a pawl and an oil cylinder, the ratchet is fixed on a power shaft, and the ratchet matched with the ratchet and the piston rod of the oil cylinder are hinged through the ratchet-oil cylinder hinge shaft; The tail of the ratchet is hinged to the support rod through the ratchet hinge shaft; the elevator speed limit protection device also includes a controller for controlling the action of the oil cylinder and a speed sensor for detecting the rotational speed of the power shaft, and the speed sensor is electrically connected to the controller. The elevator speed limiting protection device provided by the present invention has a simple structure and an ingenious concept. The position of the pawl is controlled by the oil cylinder, and the ratchet matched with the pawl is used to prevent the speed of the elevator power shaft from increasing, thereby realizing the deceleration of the elevator after overspeed. And parking, so as to play the role of speed limit protection.
Description
technical field [0001] The invention relates to an elevator speed limiting protection device. Background technique [0002] In modern society, elevators are widely used in people's daily life. The importance of the overspeed protection of the elevator is self-evident. In the prior art, the overspeed protection is mainly realized through the speed limiter, but the structure of the speed limiter is complex, bulky and expensive, which causes the subsequent maintenance cost of the elevator to be high. One of the main reasons for the high. In reality, reports of various elevator accidents caused by untimely elevator follow-up maintenance due to cost issues have been repeatedly disclosed. Contents of the invention [0003] Based on the above reasons, the present invention provides an elevator speed limiting protection device, which includes a ratchet, a pawl and an oil cylinder, the ratchet is fixed on the power shaft, and the ratchet matched with the ratchet and the piston ro...
Claims
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Inventor 郝俊峰
Owner 郝俊峰