CN1363437A - Technology for casting grooved side wall of shovel plate - Google Patents

Abstract

A technology for casting the recessed side wall of shovel plate for the scraper conveyer incldues making the mould of half product on a wood board, putting sand case on it, filling sand to obtain lower sand mould, so doing the upper sand mould, combining them together, and pouring molten steel. Its advantages are simple operation, high productivity and high accuracy.

Description

The casting method of retaining shovel board ledge

One, technical field

The present invention relates to the casting method of the retaining shovel board ledge in mining machinery field, particularly slat conveyer.

Two, background technology

Retaining shovel board ledge is the foundry goods of mine flight conveyer, and as shown in Figure 1, this foundry goods is a mono-block cast, its complex structure, and the dimensional characteristic height, casting is got up very difficult.We can see that this foundry goods left side is the fitfull projection from Fig. 1, the right side be present on a plane numerous irregular recessed, the middle part is then concavo-convex staggered, thereby if method is routinely cast, can't find suitable die joint (promptly opening the limit) at all.Fig. 2 is a scheme drawing of casting this foundry goods according to conventional approach, be foundry goods 6 partly shown in the figure section line, the way that we adopted be with concavo-convex staggered face directly the part of molding all make fuse or loose piece 5, guarantee that with this die joint 4 is a plane and can operating, existing problem is recessed, convex portion is too many, thereby fuse, loose piece is very many, gap therebetween or dislocation meeting bring very big difficulty to operation, and the weight of wooden model also increases greatly, coremaking is very big with the work capacity of following fuse, cast retaining shovel board ledge precision can not reach the technical requirements of product, therefore in fact this casting technique can not adapt to the requirement of production.

Three, summary of the invention

Task of the present invention provides that a kind of production technology is simple, work capacity is little, casting accuracy is high is used for producing the method for the retaining shovel board ledge of slat conveyer specially.

Technical scheme of the present invention is as follows:

The casting method of shelves shovel board ledge, it is characterized in that having taked following measure, in the plank of a thickness greater than the depth of groove of retaining shovel board ledge recessed face, make this one side of something model according to the geomery of groove, be die joint with this plank plane then, sandbox be placed on the model face of this plank, tamp sand, just can form sand mold after the molding by the formed convex of this one side of something model, and with this as drag falsk; Then manufacture this half of model earlier for crowning, tamp sand then, just can form the sand mold of the formed invaginated type of this one side of something model after the molding according to conventional approach, with this as cope box, itself and drag falsk are assembled together, and the casting molten steel just can make the finished product that keeps off the shovel board ledge.

Owing to adopted abovementioned technology, thereby can avoid time fuse fully, do loose piece, not only simple to operate, production efficiency is high, and can make the technical requirements of satisfying of the retaining shovel board ledge produced.

Four, description of drawings

Fig. 1 is the shape scheme drawing of described retaining shovel board ledge, also is the shape scheme drawing of model of the present invention;

Fig. 2 is a method scheme drawing of producing retaining shovel board ledge with prior art.

Five, specific embodiment

The casting method of retaining shovel board ledge is as follows:

In the plank of a thickness greater than groove 7 degree of depth of retaining shovel board ledge recessed face 2, make this one side of something model according to the geomery of groove, be die joint with this plank plane then, sandbox is placed on the model face of this plank, tamp sand, just can form sand mold after the molding by the formed convex of this one side of something model, and with this as drag falsk; Manufacture this half of model for 3 of crownings earlier according to conventional approach, tamp sand then, just can form the sand mold of the formed invaginated type of this one side of something model after the molding, with this as cope box, itself and drag falsk are assembled together, and the casting molten steel just can make the finished product that keeps off the shovel board ledge.

Claims (1)

1, the casting method of retaining shovel board ledge, it is characterized in that taking following measure: the casting method of shelves shovel board ledge, it is characterized in that having taked following measure, in the plank of a thickness greater than the depth of groove of retaining shovel board ledge recessed face, make this one side of something model according to the geomery of groove, be die joint with this plank plane then, sandbox is placed on the model face of this plank, tamp sand, just can form sand mold after the molding by the formed convex of this one side of something model, and with this as drag falsk; Then manufacture this half of model earlier for crowning, tamp sand then, just can form the sand mold of the formed invaginated type of this one side of something model after the molding according to conventional approach, with this as cope box, itself and drag falsk are assembled together, and the casting molten steel just can make the finished product that keeps off the shovel board ledge.

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