CN86200096U

CN86200096U - Slinger head

Info

Publication number: CN86200096U
Application number: CN 86200096
Authority: CN
Inventors: 徐德民
Original assignee: CASTING INST BEIJING INST OF MACHINE AND ELECTRICITY
Current assignee: CASTING INST BEIJING INST OF MACHINE AND ELECTRICITY
Priority date: 1986-01-10
Filing date: 1986-01-10
Publication date: 1987-04-08

Abstract

The utility model provides a slinger head for manufacturing cast or sand cores in the foundry practice. The utility model is composed of a casing, a sand inlet, a sand outlet, a sand hopper and a rotor. The utility model cancels a guiding arc plate of the traditional slinger head, and consolidates the sand hopper and the rotor together. The defect of the severe wear of the arc plate does not exist, and the consumed power is half of the existing slinger head. The structure is simple, and the work is reliable.

Description

Slinger head

The present invention relates to a kind of impeller head, it is used to make casting mold or loam core in Foundry Production.

At present, widely used impeller head is made up of casing, rotor, sand hopper, sand inlet, sand export and guiding arc plate in Foundry Production.During work, under the driving of rotor, the molding sand that sand hopper intercepted is pressed on the arc plate because of centrifugal action, and squeezes wiping and cross (gap between sand hopper and arc plate is less than 2 millimeters) in company with the arcwall face of sand hopper from the arc plate, dishes out by sand export then.This impeller head, molding sand squeezes the arcwall face that nuzzles up with the speed of 30～40 meter per seconds, causes arc plate and blade heavy wear, and has consumed bigger power, and its wasted work rate accounts for 40～60% of power output.

The invention (SU825270) that the Soviet Union applied in nineteen eighty-two has proposed the imagination of no arc plate impeller head, has eliminated the guiding arc plate drawback of wearing and tearing fast.This impeller head is made up of casing, rotor, sand hopper, sand inlet, sand export, elastic coupling element, magnet piece and electromagnet.In this ramming head, between sand hopper and rotor relative motion is arranged, be contained in epitrochanterian sand hopper and follow rotor rotation on the one hand, on the other hand, the sand hopper of filling molding sand is during near sand export, by the effect of electromagnet, sand hopper can be to sliding in the opposite direction with rotor rotation side, when this slip reaches certain acceleration, inertia force will force the sand lump in the sand hopper outwards to slide, and finish ramming work.But owing to ramming head rotor speed reaches about 1000 rev/mins, thereby it is just very big to make sand hopper move needed acceleration towards the direction opposite with rotor.Under the prior art condition, be difficult to the electromagnet that finds volume, electromagnetic force to meet this requirement.

The objective of the invention is to provide a kind of had not both had arc plate heavy wear drawback, and the impeller head of reliable operation simple in structure.

The present invention is achieved in that sand hopper intercepting molding sand, and rotate in company with rotor high-speed, under centrifugal action, make molding sand be pressed on the antetheca and the sidewall of sand hopper on the one hand, molding sand is outwards slided along the sand hopper antetheca, dished out at the sand export place, thereby finished the filling and the consolidation process of molding sand.

Below in conjunction with accompanying drawing invention is described in further detail.

Fig. 1 is concrete structure figure of the present invention.

With reference to Fig. 1, impeller head casing (3) is provided with sand inlet (2) and sand export (1).Sand hopper (5) is with closely fixed by the rotor (4) that power transmission shaft drove.During work, sand hopper (5) centers on center transmission shaft along direction of arrow high speed rotating, the sand that enters from sand inlet (2) is intercepted interior, and the component of centrifugal force on vertical sand hopper antetheca direction makes molding sand be pressed on the sand hopper antetheca, and rotate with sand hopper (5).Centrifugal force with sand hopper antetheca parallel direction on component molding sand is outwards skidded off along the sand hopper antetheca.This skids off motion and molding sand being synthesized together around rotatablely moving of center transmission shaft when being about to leave sand hopper, has constituted the dish out motion of molding sand when sand export (1) quilt is dished out.

Claims

1, impeller head of being made up of casing, sand inlet, sand export, sand hopper and rotor is characterized in that having the sand hopper of finishing the ramming action.