CN203664599U

CN203664599U - Axle housing resin bonded sand core

Info

Publication number: CN203664599U
Application number: CN201320768709.7U
Authority: CN
Inventors: 余文武; 刘余松; 李勇
Original assignee: CHENGDU CHENGGONG ENGINEERING MACHINERY JINYAN CASTING Co Ltd
Current assignee: CHENGDU CHENGGONG ENGINEERING MACHINERY JINYAN CASTING Co Ltd
Priority date: 2013-11-29
Filing date: 2013-11-29
Publication date: 2014-06-25
Anticipated expiration: 2023-11-29

Abstract

The utility model discloses an axle housing resin sand core. The sand core is divided into a first sand core arranged in the middle and second sand cores arranged on the two sides of the first core at the part 149.15mm apart from the center line of an axle housing casting; a positioning square hole is formed in the first sand core; positioning square bosses corresponding to the positioning square hole are arranged on the second sand cores. The axle housing resin sand core is simple in structure, and has the advantages as follows: (1) a large sand core is turned into small sand cores according to a reasonable core dividing technology, and the small sand cores are combined; (2) the sand core is divided at the part 149.15mm apart from the center line of the casting; a sand core mold is ensured to divide and demold easily; (3) the sand core is moderate in size, suitable for core injection of a medium and small sized core shooter, moderate in weight, and convenient for coring operation, conveying and coating by a worker; (4) a square sand core is adopted to match, so as to facilitate mounting and positioning, and ensure dimensional precision.

Description

A kind of axle housing resin sand core

Technical field

The utility model relates to a kind of axle housing resin sand core, belongs to axle housing casting technology field.

Background technology

Axle housing is the basic part that main reducing gear, differential mechanism, semiaxis, wheel hub and suspension are installed, and meanwhile, axle housing is again one of chief component part of running gear.Driving axle housing should have enough strength and stiffness, and quality is little, and is convenient to dismounting and the adjustment of main reducing gear.

Specifically, axle housing specifically has following function:

1 bears car mass together with driven bridge;

2, the relative axial position of left axle housing, right driving wheel is fixed;

3,, when running car, bear various counter-forces, effect force and moment that driving wheel transmits, and pass to vehicle frame by suspension.

At present, axle housing can be divided into monoblock type and segmented two classes.Banjo axle is that axle housing separates manufacture with final drive casing, and the two is bolted together.Its structural advantages is in the time checking the technology status of main reducing gear and differential mechanism or dismounting, whole drive axle need not be removed from car, thereby keep in repair more convenient, generally for all kinds of automobiles.

50 axle housings are the conventional models of the one in axle housing, its core entire length is 1600mm, manufacture large like this integral sand core and need large-scale core shooter, and so large-scale manufacturer is few, price and costliness thereof, and large core like this, weight is in 200kg left and right, workman's operation easier is large, and labour intensity is large.

Utility model content

The purpose of this utility model is: a kind of axle housing resin sand core is provided, solves existing long size axle housing production prices costliness, and the technical problem that hand labor intensity is large, thus can effectively solve above-mentioned problems of the prior art.

The purpose of this utility model is to realize by following technical proposals: a kind of axle housing resin sand core, described core is being divided into a core that is positioned at middle part and No. two cores that are positioned at core both sides from the position of axle housing foundry goods center line 149.15mm, on a core, be provided with location square hole, on No. two cores, be provided with the location side boss corresponding with locating square hole.

As a kind of optimal way, the length of described No. two cores is 700mm.

As a kind of optimal way, the length of a described core is less than or equal to 350mm.

Compared with prior art, the beneficial effects of the utility model: the utility model axle housing resin sand core is simple in structure, possess following advantage:

1. utilize reasonably point core technique, large core is become to little core, then combination;

2. core is dividing core from 149.15mm position, foundry goods center, has ensured the easy parting of core mold, the demoulding;

3. the moderate dimensions of core, is applicable to middle-size and small-size core shooter core shooting; The weight of core is moderate, facilitates workman to get core, transhipment and coating;

4. adopt square core to coordinate, be convenient to location is installed, ensured dimensional accuracy.

Brief description of the drawings

Fig. 1 is the state overlooking surface schematic diagram in foundry goods after core combination;

Fig. 2 is the side schematic view of the state in foundry goods after core combination;

Fig. 3 is the overlooking surface schematic diagram of No. two cores;

Fig. 4 is the side schematic view of No. two cores;

Fig. 5 is that No. two A in core Fig. 3 are to schematic diagram;

Fig. 6 is the overlooking surface schematic diagram of a core;

Fig. 7 is the side schematic view of a core;

Fig. 8 is that a B in core Fig. 7 is to schematic diagram.

In figure: axle housing foundry goods-1, No. two core-2, core-3, boss-4, the side of location, square hole-5, location.

Detailed description of the invention

Below in conjunction with specific embodiment, the utility model is further described.

Disclosed all features in this description, or step in disclosed all methods or process, except the speciality and/or step of mutual repulsion, all can combine by any way, unless narration especially, all can be replaced by other equivalences or the alternative features with similar object,, unless narration especially, an embodiment in a series of equivalences of each feature or similar characteristics.

As shown in Fig. 1-8, described in the utility model axle housing resin sand core, core is being divided into a core 3 that is positioned at middle part and No. two cores 2 that are positioned at core 3 both sides from the position of axle housing foundry goods 1 center line 149.15mm, the length of described No. two cores 2 is 700mm, can complete the system of penetrating, core weight 35kg with common core shooter.The length of a described core 3 is less than or equal to 350mm, can complete core weight 12kg with small-sized core shooter.On a core 3, be provided with location square hole 5, on No. two cores 2, be provided with the location side boss 4 corresponding with locating square hole 5.Adopt square fit system, be convenient to location is installed, ensured dimensional accuracy.

Workflow of the present utility model:

As shown in Figure 1, Fig. 1 is the state in foundry goods after core combination, and Fig. 1 has illustrated combination and the core line of cut 298.3mm of core.The utilization of the utility model purport reasonably divides core technique, and large core is become to little core, then after combination, uses.Core is dividing core from 149.15mm position, foundry goods center, has ensured the easy parting of core mold, the demoulding.The moderate dimensions of the little core being simultaneously divided into, is applicable to middle-size and small-size core shooter core shooting; Weight is moderate, facilitates workman to get core, transhipment and coating.

The preparation process of this core is:

The first step is laid core No. one, then lays respectively core No. two in the arranged on left and right sides of a core, and a core and No. two cores position by location square hole and location side's boss, are assembled into a large-sized core behind location.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. an axle housing resin sand core, comprise core and axle housing foundry goods, it is characterized in that: described core is being divided into a core (3) that is positioned at middle part and No. two cores (2) that are positioned at a core (3) both sides from the position of axle housing foundry goods (1) center line 149.15mm, on a core (3), be provided with location square hole (5), on No. two cores (2), be provided with the location side boss (4) corresponding with locating square hole (5).

2. axle housing resin sand core as claimed in claim 1, is characterized in that: the length of described No. two cores (2) is 700mm.

3. axle housing resin sand core as claimed in claim 1, is characterized in that: the length of a described core (3) is less than or equal to 350mm.