Lifting capacity limiting device for a construction hoist
A technology of a construction hoist and a limiting device is applied in the fields of safety protection devices and lifting weight limiting devices of a construction hoist, and can solve the problems of high maintenance rate, poor adaptability to environmental changes, low measurement accuracy and the like
Active Publication Date: 2016-09-14
GUANGXI CONSTR ENG GROUP CONSTR MACHINERY MFG
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Problems solved by technology
[0004] In order to solve the problems of poor adaptability to environmental changes, low measurement accuracy and high maintenance rate of the current lifting capacity limiting device of the construction lift, the present invention creatively proposes a lifting capacity limiting device of the construction lift, which is a mechanical force measuring ring. weight limiter
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[0021] The present invention will be further described below in conjunction with the accompanying drawings.
[0022] Such as figure 1 As shown, a lifting capacity limiting device of a construction hoist includes a transmission body, an intermediate beam, a cage body, a pin shaft 4, a mechanical force measuring ring 15, a screw rod with a nut 12, a spring 13, and an anti-breakage plate 7. The transmission body includes a transmission device 1, an upper beam 2, a lifting lug 3, and a connecting hole 6 of an anti-breakage plate. 1. Screw hole one 20, the cage body includes a cage 17, a reinforcing beam 11, an intermediate beam connecting plate 10, a force measuring ring mounting plate 16, a breakage plate connecting hole two 23, and a screw hole two 21. Such as Figure 2-5 As shown, the upper beam 2 is fastened below the transmission device 1 , the lifting lug 3 is fastened below the middle part of the upper beam 2 , and the connection hole 1 of the anti-breakage plate is locat...
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The invention provides a lifting weight limiting device of a building hoist. The lifting weight limiting device of the building hoist comprises a transmission body, a middle beam, a lifting cage body, a hinge pin, a mechanical proving ring, a threaded rod with a nut, a spring and an anti-breakage plate. The lifting weight limiting device of the building hoist is characterized in that the transmission body is connected with a connecting plate of the middle beam through the hinge pin, the middle beam is connected with the lifting cage body through the threaded rod with the nut and the spring, the middle beam is also hinged to a hinged point, and the mechanical proving ring is installed between the lifting cage body and the middle beam. The middle beam can rotate around the hinged point. Stress deformation deviation of the spring is transmitted to the mechanical proving ring through the middle beam under the lever function of the middle beam, the mechanical proving ring indirectly detects the stress deformation deviation of the spring, and therefore the lifting weight of the building hoist is monitored. The lifting weight limiting device of the building hoist solves the problems that an existing lifting weight limiting device is poor in ability to adapt to environmental change, low in measurement precision and high in maintenance ratio.
Description
technical field [0001] The invention relates to a safety protection device of a construction elevator, in particular to a lifting capacity limiting device of a construction elevator, which belongs to the technical field of construction hoisting and transportation machinery. Background technique [0002] The construction elevator is also called the construction elevator for construction. It is a manned and cargo-carrying construction machine often used in construction. It is mainly used for the construction of high-rise buildings, bridges, chimneys and other buildings. Various safety protection devices are installed in the construction hoist to prevent accidents caused by misoperation and sudden changes in the construction environment. The lifting capacity limiting device is a safety protection device used to alarm or cut off the power supply when the construction hoist reaches a certain load. [0003] Due to the limitation of the connection mode and space between the transm...
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IPC IPC(8): B66B5/00
Inventor 杨健尹义民何懿翔林永邱方亮姜渭黄家森蓝王建龙绪登庞科文李正坚王宝唐明朗
Owner GUANGXI CONSTR ENG GROUP CONSTR MACHINERY MFG