A kind of building lift protection structure
Technical field
The present invention relates to the safety guard technical field of hoisting machinery, be specially a kind of building lift protection structure.
Background technology
Derrick material elevator is vertical transportation machinery conventional in the construction of domestic median low structure, the Main Function of elevator is from lower, material to be sent to eminence or is sent to lower from eminence, it has simple in construction, install, remove and use the advantages such as more convenient, therefore, apply widely in building industry field.
In the elevator currently used, most without safety, reliable protection mechanism, when elevator construction operation, usually because of elevator, overload operation can occur, the major accident that stress is excessive or the reason such as hoist engine shutdown causes steel wire rope to break and causes hanging basket to plunk down, not only cause huge property loss, it is likely to and can cause great casualties, therefore, according to Ministry of Construction's requirement about derrick material elevator security technology standard, derrick material elevator must be equipped with when cradle, in hanging or running, disconnected rope occurs, prevent the protection mechanism of hanging-basket from drop, existing protection mechanism structure is complicated, production cost is high, braking distance is long, guide rail damage is big, thus affecting braking effect.
Summary of the invention
It is an object of the invention to provide a kind of building lift protection structure, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme: a kind of building lift protection structure, including support arm, hanging basket framework, between the top of described support arm, level connection joint has installing plate, the middle part of installing plate has rectangular channel, the side, middle part of installing plate is provided with drive motor, it is provided with machine shaft in the middle part of one end of drive motor, drive motor has winding drum by machine shaft level connection joint, the periphery of winding drum is wound with multi-turn lifting rope, the top middle portion level connection joint of hanging basket framework has horizontal support plate, the middle part of horizontal support plate is provided with upending frame, the top of upending frame is fixing with the bottom of lifting rope to be connected.
Preferably, the both sides of described hanging basket framework all have groove, the middle part level connection joint of groove has roller rotating shaft, the middle part of roller rotating shaft is provided with the friction pulley matched with roller rotating shaft, the outer surface of friction pulley coordinates with the medial surface of support arm, and the outer surface of friction pulley and the medial surface of support arm all adopt frosted to process.
Preferably, the inwall side, middle part of described hanging basket framework is horizontally installed with hydraulic cylinder, hydraulic cylinder is provided with piston rod in the middle part of one end of groove, and the top of piston rod is fixedly connected with frictional disk, the axis of piston rod, the axis of frictional disk, friction pulley axis may be contained within same level.
Preferably, upper surface one middle side part of described installing plate is provided with velocity sensor, and velocity sensor and winding drum are oppositely arranged.
Preferably, described upending frame and lifting rope junction be arranged below pulling force sensor, upper surface one middle side part of horizontal support plate is provided with programmable controller PLC.
Preferably, in the middle part of the upper side of described hanging basket framework, infrared sensor is installed.
Preferably, the data output end of described infrared sensor, the data output end of velocity sensor, pulling force sensor data output end be all connected by circuit with the input of programmable controller PLC.
Preferably, the signal input part of described drive motor, hydraulic cylinder signal input part be all connected by circuit with the outfan of programmable controller PLC.
Preferably, the material of described lifting rope is carbon fiber rope.
Preferably, the width of described rectangular channel is more than the diameter of winding drum.
Preferably, described frictional disk adopts abrasive rubber near the side material of friction pulley.
Compared with prior art, the invention has the beneficial effects as follows: adopt velocity sensor, infrared sensor, the kinestate of the comprehensive monitoring hanging basket framework of pulling force sensor, personnel's situation and stressing conditions, the information monitored is after programmable controller PLC processes and integrates, control the state of drive motor and hydraulic cylinder, frictional force between lifting rope pulling force and frictional disk and friction pulley that drive motor provides maintains the ordinary running condition of hanging basket framework jointly, simple and reliable for structure.
Accompanying drawing explanation
Fig. 1 is the axis side view such as grade of the present invention;
Fig. 2 is the front view of the present invention;
Fig. 3 is the top view of the present invention;
Fig. 4 is the main sectional view of the present invention;
Fig. 5 is the sectional view of the present invention.
In figure: 1, support arm;2, hanging basket framework;3, installing plate;4, rectangular channel;5, drive motor;6, machine shaft;7, winding drum;8, lifting rope;9, horizontal support plate;10, upending frame;11, groove;12, roller rotating shaft;13, friction pulley;14, hydraulic cylinder;15, piston rod;16, frictional disk;17, velocity sensor;18, pulling force sensor;19, programmable controller PLC;20, infrared sensor.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
nullRefer to Fig. 1-5,The present invention provides a kind of technical scheme: include support arm 1、Hanging basket framework 2,Between the top of described support arm 1, level connection joint has installing plate 3,The middle part of installing plate 3 has rectangular channel 4,The side, middle part of installing plate 3 is provided with drive motor 5,Machine shaft 6 it is provided with in the middle part of one end of drive motor 5,Drive motor 5 has winding drum 7 by machine shaft 6 level connection joint,The periphery of winding drum 7 is wound with multi-turn lifting rope 8,The top middle portion level connection joint of hanging basket framework 2 has horizontal support plate 9,The middle part of horizontal support plate 9 is provided with upending frame 10,The top of upending frame 10 is fixing with the bottom of lifting rope 8 to be connected,The both sides of hanging basket framework 2 all have groove 11,The middle part level connection joint of groove 11 has roller rotating shaft 12,The middle part of roller rotating shaft 12 is provided with the friction pulley 13 matched with roller rotating shaft 12,The outer surface of friction pulley 13 coordinates with the medial surface of support arm 1,The medial surface of the outer surface of friction pulley 13 and support arm 1 all adopts frosted to process,The inwall side, middle part of hanging basket framework 2 is horizontally installed with hydraulic cylinder 14,Hydraulic cylinder 14 is provided with piston rod 15 in the middle part of one end of groove 11,The top of piston rod 15 is fixedly connected with frictional disk 16,The axis of piston rod 15、The axis of frictional disk 16、The axis of friction pulley 13 may be contained within same level,Upper surface one middle side part of installing plate 3 is provided with velocity sensor 17,Velocity sensor 17 and winding drum 7 are oppositely arranged,Upending frame 10 is arranged below pulling force sensor 18 with lifting rope 8 junction,Upper surface one middle side part of horizontal support plate 9 is provided with programmable controller PLC 19,Infrared sensor 20 is installed in the middle part of the upper side of hanging basket framework 2,The data output end of infrared sensor 20、The data output end of velocity sensor 17、The data output end of pulling force sensor 18 is all connected by circuit with the input of programmable controller PLC 19,The signal input part of drive motor 5、The signal input part of hydraulic cylinder 14 is all connected by circuit with the outfan of programmable controller PLC 19,The material of lifting rope 8 is carbon fiber rope,The width of rectangular channel 4 is more than the diameter of winding drum 7,Frictional disk 16 adopts abrasive rubber near the side material of friction pulley 13.
nullThe present invention is in the specific implementation,The movement state information monitored is exported programmable controller PLC 19 by circuit by velocity sensor 17,The personnel's situation information monitored is exported programmable controller PLC 19 by circuit by infrared sensor 20,The lifting rope 8 pulling force information monitored is exported programmable controller PLC 19 by circuit by pulling force sensor 18,The information monitored is after programmable controller PLC 19 processes and integrates,Control the state of drive motor 5 and hydraulic cylinder 14,When kinestate exception,Hydraulic cylinder 14 promotes piston rod 15 to move,Frictional force between frictional disk 16 and friction pulley 13 increases,Frictional force between lifting rope 8 pulling force and frictional disk 16 and friction pulley 13 that drive motor 5 provides maintains the ordinary running condition of hanging basket framework 2 jointly,Simple and reliable for structure.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, being appreciated that and these embodiments can be carried out multiple change, amendment, replacement and modification without departing from the principles and spirit of the present invention, the scope of the present invention be defined by the appended.