CN2150183Y

CN2150183Y - Rotation-controlled crane hook

Info

Publication number: CN2150183Y
Application number: CN 93227123
Authority: CN
Inventors: 李百林
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-01-14
Filing date: 1993-01-14
Publication date: 1993-12-22
Anticipated expiration: 2003-01-14

Abstract

The utility model relates to a rotation-controlled crane hook which is composed of a hook with a key groove, a motor transmission section, a worm gear drive section, a shifting fork and an electric control section. The utility model is characterized in that the whole components of the rotation-controlled crane hook are arranged in a box body at the neck of the hook. A clutch which is installed on a worm wheel is matched with a key to slide at the neck; the shifting fork is lapped with the clutch; the motor transmission section is installed outside the box body. The electric control section manipulates the electric appliances on a control panel through a control knob to control that the mechanical driving drives the hook to rotate. The utility model has the advantages that the function that the hook can exactly place the goods is perfect, the auxiliary manpower and time at the time of unloading are saved and the usage is flexible and safe.

Description

Rotation-controlled crane hook

The utility model relates to elevator machinery, a kind of hoisting crane eave tile of may command rotation.

At present, eave tile rotation on the crane is in free state, can only ascending, descending when the handling object, the front, rear, left and right motion, when needs change hanging object angle, at any time must be push-jump by manually going, ajust, promptly wasted artificial, the time, dangerous again, if when the existing field boundary of handling manually can't arrive, that have to freely rotate with eave tile and try to put standard one after another.In addition, grab bucket is hung in when grasping goods, needs rotation direction to grasp and just can grab totally; When make-up machinery, need workpiece turned to and just be convenient to install, especially when the hot working operation, workpiece burn till red-hot manually can't be approaching, put that forbidden will mis-use breakdown; When the heating furnace shove charge, unload live, forging is put, heat treated part quenches, and weldering more needs fast, accurately, so crane eave tile hand of rotation can not be controlled and having a strong impact on the crane work efficiency.

The purpose of this utility model provides a kind of hoisting crane drop hanger head of may command rotation, and hoisting crane can accurately, fast be loaded and unloaded with reaching, and saves artificial the assisting under colluding.

The hoisting crane eave tile of may command rotation of the present utility model comprises eave tile, motor transmission mechanism, Worm wheel transmission mechanism, shifting fork mechanism, the electrical control mechanism of being with keyway, it is characterized in that they all are installed in the casing of eave tile neck; Worm wheel transmission mechanism is installed in the neck lower end by fixed cover, and the tooth embedding of power-transfer clutch 14 A ends is arranged on the worm gear 3.Power-transfer clutch 14 passive parts are contained in the neck upper end, are engaged in neck with key 13 and slide.Shift fork 6 one ends and power-transfer clutch 14 overlap joints, shift fork 6 other ends are fixed on the casing by declutch shift shaft 7, levelling nut 5,11, spring 10, and the upper end of declutch shift shaft 7 is fixed with lever 9, and lever 9 other ends connect electromagnet 8.Motor transmission mechanism is installed in outside the casing, and motor 18 is connected with the big belt pulley 21 of Worm wheel transmission mechanism by small belt pulley 19, belt 20.Electrical control mechanism comprises automatically controlled plate, control button, motor, source switch.

The advantage of this may command rotation eave tile is; Chaufeur can be by handling the rotation direction of electrical equipment control eave tile, can be quickly and accurately with object on demand direction neatly put and put indirect labor and time when saving unloading in place.This cover control mechanism all is fixed on the eave tile neck, and is safe and reliable, uses flexibly, and perfect drop hanger function has improved the work efficiency of hoisting crane.

Accompanying drawings embodiment:

Accompanying drawing 1 is a may command rotary crane eave tile section-drawing

Accompanying drawing 2 is may command rotary crane eave tile outside drawings

Accompanying drawing 3 is the automatically controlled figure of may command rotary crane eave tile

The hoisting crane eave tile of may command rotation is made up of eave tile, drive of motor, worm drive, shift fork, electrical control mechanism, it is characterized in that all parts are installed in eave tile 1 neck, see accompanying drawing 1.Neck has keyway 13 or makes spline; the fixed cover 16 that shields is a tight fit in eave tile 1 neck, and worm gear 3 is housed on fixed cover 16, and the A end tooth of dental clutch 14 inlays on worm gear; power-transfer clutch 14 passive parts are contained in the neck upper end, are engaged in neck with key 13 and slide.Shift fork 6 one ends and power-transfer clutch 14 overlap joints, the other end is fixed on the casing 17 by declutch shift shaft 7 and spring 10, adjustment nut 5,11, axle 7 upper end truck dead levers 9, lever 9 other ends link to each other with electromagnet 8, worm gear 4 by big belt pulley 21 be positioned at casing 17 exterior driving motor transmission devices and link to each other.Motor transmission mechanism comprises that motor 18, small belt pulley 19, belt 20 are installed in outside the casing, see accompanying drawing 2.Drive of motor also can change gear transmission into.The electric control part branch comprises automatically controlled plate, control button, motor, source switch HK, sees Fig. 3.Source switch HK connects three phase mains and the automatically controlled plate on the weight-lifting equipment, and is communicated with motor D and magnet coil C through automatically controlled plate, and the cable that is communicated with motor and automatically controlled plate is fixed on the spiral bucket, is installed on the weight-lifting equipment.Two contactless switchs are arranged in the control desk, and contactless switch ZC is used for connecting the just commentaries on classics of electrical motor, and when ZC moved, the winding that its main contact makes electrical motor and three phase mains were by the phase sequence of just changeing (X1 → D1 X2 → D2 X3 → D3) be connected.Contactless switch FC is used to connect circuit for reversing, when FC moves, and motor and the phase sequence (X1 → D1 X2 → D3 X3 → D2) be connected of power supply by counter-rotating.In order to prevent that two contactless switchs from connecting simultaneously, must make their phase interconnected locks.In the coil circuit of positive contactor ZC, the auxiliary break contact of series connected counter-rotating contactless switch FC, and in the FC coil circuit, the auxiliary break contact of series connection ZC.Utilize just changeing start button ZA, counter-rotating start button FA and stop button TA, magnet coil button QA carries out job manipulation.For example; When the needs eave tile rotates, make coil C energising by coil knob QA, electromagnet 8 produces magnetic force, drives lever 9 shift fork 6 is moved downward, and power-transfer clutch 14 engagements are the readiness that eave tile rotates; When pressing the ZA knob, closing coil ZC and all ZC contacts are just changeed motor, drive the eave tile clickwise; Fuse RD plays the short-circuit protection effect, and RJ is the motor overheating guard member.

This eave tile can be made into 5-75 ton series, adopts the rating of electric machine to can be 0.5-3Kw.

Claims

1, a kind of hoisting crane eave tile of may command rotation comprises eave tile, motor transmission mechanism, Worm wheel transmission mechanism, shifting fork mechanism, the electrical control mechanism of being with keyway, it is characterized in that they all are installed in the casing of eave tile neck.

2, the hoisting crane eave tile of may command rotation according to claim 1, it is characterized in that described Worm wheel transmission mechanism is installed in the neck lower end by fixed cover 16, be fixed with the tooth embedding of power-transfer clutch 14 A ends on the worm gear 3, power-transfer clutch 14 passive parts are contained in the neck upper end, are engaged in neck with key 13 and slide.

3, the hoisting crane eave tile of may command rotation according to claim 1, it is characterized in that described shift fork 6 one ends and power-transfer clutch 14 overlap joints, shift fork 6 other ends are fixed on the casing 17 by declutch shift shaft 7, levelling nut 5,11, spring 10, the upper end of declutch shift shaft 7 is fixed with lever 9, and lever 9 other ends connect electromagnet 8.

4, the hoisting crane eave tile of may command rotation according to claim 1 is characterized in that described motor transmission mechanism is installed in outside the casing 17, and motor 18 is connected with the big belt pulley 21 of Worm wheel transmission mechanism by small belt pulley 19, belt 20.

5, the hoisting crane eave tile of may command rotation according to claim 1, it is characterized in that described electric control part branch comprises change-over swith HK, four master cocies, control desk and magnet coil C, change-over swith HK energized and automatically controlled plate, magnet coil Z, two contactless switchs are arranged on the automatically controlled plate, contactless switch ZC connects motor just to be changeed, be connected X1 → D1 with three phase mains by positive phase inversion preface, X2 → D2, when X3 → D3, contactless switch FC connected the motor counter-rotating, motor was connected X1 → D1 with power supply by the counter-rotating phase sequence, X2 → D3, X3 → D2, master cock has just changes startup button ZA, counter-rotating starts button FA, stop button TA and coil button QA, two contactless switch ZC and FC must lock togethers.