CN86205342U - Multipurpose jigging and hanging device for gas cementing furnace - Google Patents

Abstract

The utility model discloses an improved multipurpose jigging and hanging device for a gas cementing furnace, comprising a hanger frame, a hanging scaffold, a hanger hook, a charging basket matched with the hanger frame, the hanging scaffold and the hanger hook; the utility model is used for the loading hanging workpiece in the heat-treatment type electrical resistance furnace carrying out the treatments of carburizing, nitridation, soft nitriding, normalising, quenching and annealing. The multipurpose jigging and hanging device for gas cementing furnace is characterized in that the integral charging basket is a tripodia structure, a moving hanger hook and discharging without hanging the charging basket; a pair of jigging and hanging devices can complete clamping the work piece with different shapes and size dimensions. The multipurpose jigging and hanging device for gas cementing furnace adopts the way of vertical hanging the work piece, the work piece has small deformation after treatment, and the batch can be improved more than 25%. The multipurpose jigging and hanging device for gas cementing furnace has the advantages of convenient operation, safety, energy and labor saving; the discharged work piece can be directly quenched; the multipurpose jigging and hanging device for gas cementing furnace can carry out the reform system through utilizing the existing jigging and hanging device.

Description

Multipurpose jigging and hanging device for gas cementing furnace

The utility model is a kind of sling and jig of heat treatment atmosphere carburizer, and it is applicable to that all can colligation hang or workpiece that string is hung carries out the clamping and the lifting of carburizing, nitrogenize, tufftride, quenching, normalizing, annealing in well formula resistance furnace.

Existing heat treatment atmosphere carburizer sling and jig is made up of the grate of installing at the bottom of suspension bracket, charging basket and the charging basket.Charging basket and grate are that electric furnace factory is made into cover (technology source: 1. Equipment for Heating Processing and design, the Shandong People's Press in October, 1977 front page by the standard specification manufacturing and with stove.2, electric furnace and heating engineering goods sample.China Machine Press's in December, 1972 front page.).

Existing suspension clamp has the shortcoming of the following aspects:

1, charging basket is a combining structure, is overlapped into a stove according to different two or three charging baskets of stove model.The above carburizer of 60KW will install two charging baskets of workpiece earlier and lift up in the stove when advancing stove, the 3rd charging basket lifted up on two charging baskets that overlap in the stove: operation sequence is opposite when coming out of the stove again, whole process is carried out under 900 ℃ of high temperature, and overlapping the 3rd charging basket is very hard; When hanging out furnace bottom next one charging basket, the operator is subjected to strong hyperthermia radiation baking, and very difficult hook is lived two hangers of charging basket.

2, suspension bracket is that the user manufactures according to the charging basket size, because of charging basket has only two hangers, so suspension bracket two sufficient structures always.If workpiece in charging basket, put dissymmetry.Easy overturning when then lifting by crane is smashed equipment or is hurted sb.'s feelings.

Workpiece must hang out with charging basket when 3, coming out of the stove, and workpiece can not direct quenching, advances stove again and lifts up into cold charging basket and workpiece, and the above stove of 60KW generally will heat up and just can return to carburizing temperature about 3 hours.So both increased the consumption of the energy and carburizer, lost time again.

4, often distortion was bigger after slender piece was placed in the interior carburizing of charging basket; If put the special fixture holding workpiece, a kind of special fixture can only be used for the close workpiece of geomery, scarce general versatility, the workpiece that size is less and quality requirement is higher, and batch causes waste very little.

The purpose of this utility model provides a kind of improved gas carbruizing furance sling and jig, it is correctly suspension clamp workpiece carburizing in gas carbruizing furance reposefully not only, and the suspension clamp can finish workpiece nitrogenize in well formula resistance furnace, tufftride, quenching, normalizing, annealing the time, possess versatility.

The utility model changes the suspension bracket of former sling and jig into tripodia by two foots: charging basket changes three hangers, cylindrical shape overall structure into by two hangers, a branch overlay structure; Remove charging basket, one of them external three hanger is made hanging scaffold.Because leg-of-mutton stability, thereby lift by crane safe and reliable, mix " 3 " type suspension hook of several activities, it can determine that colligation is hung or string is hung the mutual distance of workpiece hook on hanging scaffold according to workpiece profile size, thereby one pair of sling and jig just can be finished the clamping of the workpiece that shape, size are differed.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is that Fig. 2 is the vertical view of hanging scaffold according to the many installation diagrams with the gas carbruizing furance sling and jig that the utility model proposes.Fig. 3 is the left view of suspension hook.

Describe many details and the working conditions that the utility model proposes in detail with the gas carbruizing furance sling and jig below in conjunction with Fig. 1.

This sling and jig comprises a suspension bracket (1), suspension bracket is tripodia (a 2) structure, tripodia (2) is supported by the support bar of forming equilateral triangle (3), be attempted by on leg-of-mutton three summits, the tripodia lower end is hook-type, the direction of hook is along support bar equilateral triangle circumscribed circle tangential direction, and the suspension bracket top is an annulus; It is the disc frame girder construction that is distributed with three hangers (5) on the cylindrical equably for a hanging scaffold (4); Several suspension hooks (6), suspension hook (6) is " 3 " font: a charging basket (7), it is a cylindrical shape, the top cylindrical is distributed with three hangers (8), charging basket equably and rises and support hanging scaffold and institute's workpiece of hanging (9) on same horizontal plane, and makes that furnace gas formation circulates, temperature acts on uniformly.The physical dimension of whole sling and jig correspondingly changes according to the difference of well formula resistance furnace model.

Making many is to change a social system with existing charging basket, grate with the easiest method of gas carbruizing furance sling and jig.

Many usings method with the gas carbruizing furance sling and jig are, in suspension bracket charging basket being lifted up into earlier, hanging scaffold are placed on the suspension bracket again, suspension hook is hung up workpiece be hung on and lift up on the hanging scaffold in the stove, and hanging scaffold places on the interior charging basket of stove, has promptly finished the stove process.When coming out of the stove, suspension bracket puts in the stove, and three hangers, suspension hook and the workpiece of hanging that the clockwise direction rotating hanger hooks hanging scaffold hang out stove smoothly and carry out direct quenching or cooling.

Take out for making in the carburizing process sometimes individual pieces fall into to make things convenient in the stove in time, can place a grate (grate is identical with existing use) in the charging basket bottom.

The utility model has the advantage of:

1, versatility: because suspension hook is alive, it can decide according to the size of workpiece appearance and size at the spacing distance that hanging scaffold hangs, thereby one pair of sling and jig can carry out to the different size of different product or same type product carburizing, nitrogenize, the lifting of tufftride clamping. This device removes charging basket, can be used for then that workpiece quenches in well formula resistance furnace, the clamping lifting of normalizing, annealing.

2, easy to operate, safe and reliable. Suspension bracket of the present utility model is the tripodia structure, because leg-of-mutton stability, lift by crane safe and reliablely, workpiece will not overturning: " 3 " font suspension hook hangs and takes flexibly (known " S " type suspension hook then easily is stuck on the frame beam of hanging scaffold) at hanging scaffold, easy to operate; Hanging scaffold is near the fire door place, and turnover furnace operating person is subjected to hyperthermia radiation Little, labour intensity is little.

3, the shove charge number of packages is many, and the stove amount can improve more than 25%, the carburized layer good uniformity, and the carburized parts distortion is little.Using existing sling and jig, is example with the carburizer of 75KW to 195 type piston pin carburizings, and a stove can only be adorned 240.Use the gas carbruizing furance sling and jigs of using more, piston pin is worn iron wire hang, a stove can be adorned 560, and the batch expansion is twice above, can give full play to the production capacity of stove.Workpiece is hung vertically on the hanging scaffold, thereby deflection is reduced to minimum degree, between every string workpiece, at interval evenly, makes in the stove carburizing atmosphere circulation good, and with stove carburized layer uniformity, quality is good.

4, save the energy and man-hour.When existing carburizer sling and jig passed in and out stove, workpiece and charging basket were together lifted up into and are hung out, and every stove all will be heated to carburizing temperature with cold charging basket, and it is big to expend the energy.Only hang workpiece when time length, use device turnover of the present utility model stove, charging basket then is positioned in the stove as bracing frame, thereby has changed the installation way of traditional workpiece layering discharging.Every stove saving is heated to the energy and the time of carburizing temperature with three charging baskets and two grates, the every stove of the carburizer of 75KW 130 degree that can economize on electricity for example, nearly two hours of time, and the workpiece back direct quenching of can coming out of the stove.The energy and the man-hour of this procedure that quenches have more been saved.For another example, direct quenching after the piston pin of two-sided carburizing is come out of the stove, not only save the energy and the man-hour of 880 ℃ of quench hots for the first time, and avoided piston pin after carburizing, to separate out defectives such as net carbide and oxidation and decarbonization in the cooling procedure, helped improving inherent quality.

Claims (5)

1, is used for adorning and hangs all kinds of parts and carry out the gas carbruizing furance sling and jigs of using of multiple production process more, by suspension bracket (1), hanging scaffold (4), be equipped with countless suspension hooks (6) and charging basket (7) is formed in heat treatment.It is characterized in that: suspension bracket (1) is the tripodia structure, and hanging scaffold (4) is the disc that cylindrical has three hangers (5).

Suspension hook (6) is " 3 " font, and charging basket (7) is the outer cylindrical shape that three hangers (8) are arranged.

2, sling and jig as claimed in claim 1, it is characterized in that the tripodia structure of described suspension bracket (1) by the they sup-port of forming equilateral triangle, tripodia is in succession on three summits of equilateral triangle, the tripodia lower end is hook-type, and the direction of hook is along the tangential direction of support bar equilateral triangle circumscribed circle.

3, sling and jig as claimed in claim 1 is characterized in that described hanging scaffold (4) is to be distributed with three hangers (5) on the cylindrical equably, and the inner ring of dish is the frame girder construction.

4, sling and jig as claimed in claim 1 is characterized in that described suspension hook (6) is " 3 " font.

5, sling and jig as claimed in claim 1 is characterized in that on the same horizontal plane in outer ring of described charging basket (7) three hangers (8) being arranged, and evenly distributes.

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