Lifting weight limiting device of building hoist
A technology for construction elevators and limiting devices, which is applied in the field of lifting capacity limiting devices and safety protection devices of construction elevators, and can solve problems such as poor ability to adapt to environmental changes, low measurement accuracy, and high maintenance rate
Active Publication Date: 2014-04-30
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 drawings.
[0022] Such as figure 1 As shown, a lifting weight limiting device of a construction hoist includes a transmission body, an intermediate beam, a cage body, a pin 4, a mechanical force measuring ring 15, a screw rod 12 with a nut, a spring 13, and an anti-breakage plate 7. The transmission body includes a transmission device 1, an upper cross beam 2, a lifting lug 3, and an anti-breaking plate connecting hole 6, and the middle beam includes a cross beam 8, a lifting lug connecting plate 5, a lower ear plate 9, and a Z-shaped plate 14. , Screw hole one 20, the hanging cage body includes a hanging cage 17, a reinforced cross beam 11, an intermediate beam connecting plate 10, a load ring mounting plate 16, an anti-breaking plate connecting hole two 23, and a screw hole two 21. Such as Figure 2-5 As shown, the upper beam 2 is fastened under the transmission device 1, the lifting lugs 3 a...
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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 for a construction elevator, in particular to a lifting weight limiting device for a construction elevator, belonging to the technical field of construction lifting and transporting machinery. Background technique [0002] Construction elevators are also called construction elevators for buildings. They are often used in construction to carry people and cargo. They are mainly used for the construction of high-rise buildings, bridges, and chimneys. Various safety protection devices are installed in the construction hoist to prevent accidents caused by misoperation and sudden changes in the construction environment. Lifting weight limiting device is a safety protection device used to alarm or cut off power when the construction lift reaches a certain load. [0003] At present, the lifting weight limiting device of the construction elevator is limited by the connection mode and space between the transmission b...
Claims
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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