CN201952105U

CN201952105U - Electromagnetic automatic releasing hook for hoisting device

Info

Publication number: CN201952105U
Application number: CN201120050867XU
Authority: CN
Inventors: 肖志瑜; 李超杰; 林小为; 吴苑标
Original assignee: South China University of Technology SCUT
Current assignee: South China University of Technology SCUT
Priority date: 2011-03-01
Filing date: 2011-03-01
Publication date: 2011-08-31
Anticipated expiration: 2021-03-01

Abstract

The utility model relates to hoisting equipment, in particular to an electromagnetic automatic releasing hook for a hoisting device, wherein a heavy object needs to automatically fall. The electromagnetic automatic releasing hook mainly comprises an electromagnet (1), a connecting plate (2), a shaft I (3), an installing part (4), a shaft II (5) and a lifting hook (6); and the on-off of the electromagnet is controlled through a remote pushbutton, the heavy object can be automatically released from a hook with a smaller force, the heavy object can be effectively prevented from accidentally falling, and the purpose of conveniently, rapidly, safely and automatically releasing the hook is realized. The electromagnetic automatic releasing hook has the advantages of simple, reliable and practical integrated structure and low cost; the shaft II and a guide rail of the installing part are contacted through a rolling bearing, the friction force is small, the abrasion for the device is reduced, and meanwhile, the electromagnetic automatic releasing hook is more sensitive to control; and remote control can be realized, so that the electromagnetic automatic releasing hook is safer and more convenient to operate and is particularly applicable to devices which are automatically unloaded under loads in occasions, such as factories, forested areas, stations and the like.

Description

A kind of hoisting device is automatically-unhooked with electromagnetism

Technical field

The utility model has related to heavy equipment, is meant that specifically weight needs the hoisting device of automatic whereabouts automatically-unhooked with electromagnetism, is specially adapted to occasions such as factory, forest zone, station and needs self-discharging device under load.

Background technology

In life and production practice, a lot of links need make the weight that has lifted by crane unload automatically, avoid artificial highly intensive labour and the high risk that breaks off relations.In order to address this problem, Chinese patent application 03251025.X discloses a kind of automatically-unhooked, be that movement parts by cylinder is threaded with a Y-piece, this Y-piece is simultaneously hinged with the bearing pin that one group of antifriction-bearing box is housed, power elements such as cylinder drive bearing pin by Y-piece and antifriction-bearing box moves reciprocatingly, then rolling with the vertical plane of hook resistance arm and the plane contact place of fabricated section upper rail in the outer ring of antifriction-bearing box, when it is rolled into the vertical plane that breaks away from the hook resistance arm, hook dextrorotation under deadweight or action of gravity goes to balance position, and weight breaks off relations.But this uncoupling rigging small part is many, damages easily when hanging heavier weight, and when cylinder air pressure shakiness or power failure, there is potential safety hazard in weight whereabouts out of control possibly.

The utility model content

The purpose of this utility model is that it is huge to overcome traditional unhook structure, and cost is higher and have the deficiency of potential safety hazard, utilizes electromagnetic principle, provides the automatically-unhooked and remote controlled hoisting device of a kind of convenience, safety automatically-unhooked with electromagnetism.

For achieving the above object, the utility model is taked following design plan:

A kind of hoisting device is automatically-unhooked with electromagnetism to be made of electromagnet, connecting panel, axle I, fabricated section, axle II and suspension hook; Described fabricated section top offers through hole, and the bottom cuts out elongated slot and guide rail, and fabricated section up and down two ends also offers the screw that connecting panel is installed and the fixing screw of suspension hook respectively; Described electromagnet is made up of two parts up and down, and its top is connected with bolt of rear end plate by connecting panel with fabricated section, passes through bolted connection on its underpart and the I; Suspension hook is connected with bearing pin with fabricated section; Described axle I passes through hole, is 90 ° with axle II, and axle I bottom fixedly mounts by pin with axle II, and axle II contacts with suspension hook; Described axle II outer ring is symmetrically installed with the antifriction-bearing box of being convenient to up-and-down movement in guide rail).

Described suspension hook is lower than suspension hook topmost with the contact point of axle II, and the contact level at contact point place is the vertical plane.

The utility model compared with prior art has following advantage:

1, the utility model integral structure is simple, reliable, practical, with low cost, the purpose of realized easily and fast, safety is automatically-unhooked.

2, contact by antifriction-bearing box between the guide rail of axle II and fabricated section, friction force is little, has reduced the wearing and tearing to installing, and makes control sensitiveer simultaneously.

3, the utility model utilizes electromagnetic principle, can make weight automatically-unhooked with less power, and can effectively prevent the unexpected whereabouts of weight, can realize Long-distance Control, make operation safe, convenience, be specially adapted in the occasions such as factory, forest zone, station self-discharging device under load.

Description of drawings

Fig. 1 is a kind of hoisting device automatically-unhooked structural representation of electromagnetism;

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the cross-sectional view of fabricated section 4.

Fig. 4 is the left pseudosection of Fig. 3.

Fig. 5 is a kind of hoisting device automatically-unhooked working state schematic representation of electromagnetism.

The specific embodiment

Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.

As depicted in figs. 1 and 2, this hoisting device mainly is made of electromagnet 1, connecting panel 2, axle I 3, fabricated section 4, axle II5 and suspension hook 6 with electromagnetism is automatically-unhooked.Described fabricated section 4 as shown in Figure 3 and Figure 4, fabricated section 4 tops offer through hole 12, the bottom cuts out elongated slot 16 and guide rail 13, fabricated section also offers the screw 15 that connecting panel 2 is installed and the fixing screw 14 of suspension hook 6 respectively in two ends about in the of 4.Through hole 12 is can move up and down in order to allow an I 3 pass also, and elongated slot 16 effects provide the space that suspension hook 6 is installed, and guide rail 13 is for convenience of an axle II5 up-and-down movement.Electromagnet 1 adopts SA series to exchange solenoid electromagnet, adopt on experimental facilities present embodiment be SA-7 (4602) by used unhook, this electromagnet 1 is made up of two parts up and down, its top is connected by connecting panel 2 usefulness bolt of rear end plates 7 with fabricated section 4, and its underpart is connected with bolt 8 with axle I 3 upper ends; Electromagnet 1 top, energising back attracts the lower part, makes the lower part upward movement.Suspension hook 6 is connected by screw 14 usefulness bearing pins 11 with fabricated section 4; Described axle I 3 passes through hole 12, is 90 ° with axle II5, and pin 9 fixed installations are passed through with axle II5 in axle I 3 bottoms; Described axle II5 outer ring is symmetrically installed with two antifriction-bearing boxs 10 being convenient to up-and-down movement in guide rail 13; The effect of connecting panel 2 is to connect electromagnet 1 and fabricated section 4, and it all has screw up and down, and the upper end screw is by the top of bolt of rear end plate 7 fixed connecting plates 2 and electromagnet 1, and the lower end screw cooperates with screw 15 by bolt of rear end plate 7 fixed connecting plates 2 and fabricated section 4; Suspension hook 6 is connected by screw 14 usefulness bearing pins 11 with fabricated section 4, suspension hook 6 can 360 ° of rotations, suspension hook 6 is lower than suspension hook 6 topmost with the contact point of axle II5, and suspension hook 6 is the vertical plane with the plane, contact point place of axle II5, contact point only is subjected to horizontal force and does not have vertical component, so not only avoided suspension hook 6 hang up behind the weight extrusion axis II5 move up and down but also be beneficial to break off relations when electromagnet 1 starts convenient.After suspension hook 6 hangs up weight, suspension hook 6 clockwise directions can not rotate, when pressing button and open the switch of electromagnet 1, electromagnet 1 energising, this moment, the top of electromagnet 1 can suct the lower part, thereby electromagnet 1 lower part drives axle I 3 upward movements, and axle I 3 can drive also upward movement of an II 5 again.When axle II5 moved upward to the top that breaks away from suspension hook 6 tail end vertical planes, the weight on suspension hook 6 and the suspension hook 6 can go to balance position by the by gravity cw, and weight breaks off relations, and hoisting device with the automatically-unhooked working state schematic representation of electromagnetism as shown in Figure 5.Weight falls behind down, and electromagnet 1 cut off the power supply automatically, and an axle I 3 and an axle II5 automatically reset, and it is contacted with an II5 reset, can hang weight again at this moment, so far, finish a working cycle by manually clockwise rotating suspension hook 6.The automatically-unhooked Long-distance Control that realizes of this electromagnetism is specially adapted in the occasions such as factory, forest zone, station self-discharging device under load.

Claims

1. a hoisting device is automatically-unhooked with electromagnetism, it is characterized in that: it is made of electromagnet (1), connecting panel (2), axle I (3), fabricated section (4), axle II (5) and suspension hook (6); Described fabricated section (4) top offers through hole (12), and the bottom cuts out elongated slot (16) and guide rail (13), and fabricated section (4) two ends up and down also offers screw (15) that connecting panel is installed and the fixing screw of suspension hook (14) respectively; Described electromagnet (1) is made up of two parts up and down, and its top is connected with bolt of rear end plate (7) by connecting panel (2) with fabricated section (4), is connected by bolt (8) on its underpart and the I (3); Suspension hook (6) is connected with bearing pin (11) with fabricated section (4); Described axle I (3) passes through hole (12), is 90 ° with axle II (5), and pin (9) fixed installation is passed through with axle II (5) in axle I (3) bottom, and axle II (5) contacts with suspension hook (6); Described axle II (5) outer ring is symmetrically installed with the antifriction-bearing box (10) of being convenient to up-and-down movement in guide rail (13).

2. a kind of hoisting device according to claim 1 is automatically-unhooked with electromagnetism, it is characterized in that: described suspension hook (6) is lower than suspension hook (6) topmost with the contact point of axle II (5), and the contact level at contact point place is the vertical plane.