CN207521686U

CN207521686U - A kind of ceramic feed pipe structure of low pressure wheel hub casting

Info

Publication number: CN207521686U
Application number: CN201721696700.4U
Authority: CN
Inventors: 杜见君
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-07
Filing date: 2017-12-07
Publication date: 2018-06-22
Anticipated expiration: 2027-12-07

Abstract

The utility model discloses a kind of low pressure wheel hubs to cast with ceramic feed pipe structure, the feed pipe component of guide is used between hub mold cavity and furnace body inner cavity including being connected to, feed pipe component includes outer barrel, inner cylinder and filter screen, outer barrel is in vertically to be inserted into furnace body inner cavity, the upper end opening of outer barrel and on the furnace body, the lower end closed of outer barrel and with furnace body intracavity bottom spacing set, multiple feed inlets are uniformly offered centered on outer barrel axle center in the circumferential side wall of outer barrel lower end, filter screen is arranged on the intracavity bottom of outer barrel and covering feed inlet；The utility model is in pressurization, molten aluminum forms flow velocity from side and enters feed pipe, and then greatly reduce the heavy collection object that molten aluminum band is involved in bottom of furnace body, during pressure release, the molten aluminum laterally to flow back, which will not sink to bottom of furnace body, to be collected the directly impact of object composition and stirs, in addition, filter screen can further be filtered molten aluminum, so as to greatly improve the production quality of wheel hub, have the characteristics that simple in structure and highly practical.

Description

A kind of ceramic feed pipe structure of low pressure wheel hub casting

Technical field

The utility model is related to wheel hub casting technology field, the ceramic feed pipe knot of specifically a kind of low pressure wheel hub casting Structure.

Background technology

In traditional low pressure wheel hub production technology, pressurization is filling into expects pipe and is generally fed using cast iron feed pipe and ceramics Pipe, and feed effective more, but the cast iron feed pipe of the prior art or ceramic feed pipe in the ceramic feed pipe cast iron that compares Substantially lead to feeding manner straight up and down in all using, as shown in Fig. 1-Fig. 2 namely charging infratubal port is all in cast insulation Closed bottom of furnace body, the lower port of feed pipe is apart from furnace body intracavity bottom about 100mm.

By the feeding manner of the prior art described above, there are following adverse effects in wheel hub production：1) low pressure production wheel During hub under pressure, molten aluminum converges to feed inlet from bottom of furnace body concentration, and wheel hub mould is given into feed pipe (stalk) Tool cavity fills type, and in this process, feed pipe inlet molten aluminum can generate flow velocity, thus heavy collection in the miscellaneous of bottom of furnace body Matter band is involved in feed pipe and into wheel hub blank, causes the casting flaws such as casting slag inclusion, casting character is bad；2) low pressure production wheel Pressurize of pressurizeing during hub is complete, and to during pressure release, molten aluminum molten aluminum out of mould gate and furnace body has certain difference in height in feed pipe, Molten aluminum is refunded to flow back to and is returned in furnace body in feed pipe during pressure release, and in this process, feed pipe inlet molten aluminum can generate flow velocity, this Sample is just involved in heavy collection in furnace body in molten aluminum in the impurity band of bottom of furnace body, is virtually stirred effect to molten aluminum in furnace body, Cause molten aluminum impure, quality is unstable, and then it is bad to generate casting flaws, the casting characters such as casting slag inclusion.

Utility model content

In order to solve the above technical problems, it can avoid casting slag inclusion band being involved in the purpose of this utility model is to provide one kind Wheel hub defect effectively improves castability, and with the ceramic feed pipe structure of low pressure wheel hub casting simple in structure.

In order to achieve the above objectives, the technical solution of the utility model is as follows：

The ceramic feed pipe structure of a kind of low pressure wheel hub casting, including being connected between hub mold cavity and furnace body inner cavity For the feed pipe component of guide, the feed pipe component includes outer barrel, inner cylinder and filter screen；

The outer barrel is inserted into furnace body inner cavity in vertical, the upper end opening of outer barrel and on furnace body, the lower end of outer barrel It closes and is set with furnace body intracavity bottom spacing, uniformly opened up centered on outer barrel axle center in the circumferential side wall of outer barrel lower end There are multiple feed inlets；

The filter screen is arranged on the intracavity bottom of outer barrel and the covering feed inlet, and outer barrel is placed in the inner cylinder, and The lower end of inner cylinder is contradicted on the filter screen.

Further, spacing is 80-120mm between the lower end of the outer barrel and furnace body intracavity bottom.

Further, the lower end of the feed inlet is flushed with the intracavity bottom of outer barrel.

Further, the mesh number of the filter screen is 20 mesh.

Further, the filter screen is made of ceramic materials.

The beneficial effects of the utility model：

The utility model includes being connected to the feed pipe component that guide is used between hub mold cavity and furnace body inner cavity, into Expects pipe component includes outer barrel, inner cylinder and filter screen, and outer barrel is inserted into furnace body inner cavity in vertical, the upper end opening of outer barrel and is mounted on On furnace body, the lower end closed of outer barrel and with furnace body intracavity bottom spacing set, close to outer barrel lower end circumferential side wall on outer barrel Multiple feed inlets are uniformly offered centered on axle center, filter screen is arranged on the intracavity bottom of outer barrel and the covering feed inlet, interior Outer barrel is placed in cylinder, and the lower end of inner cylinder is contradicted on the filter screen；The utility model is used and is opened up on feed pipe side wall Feed inlet, in pressure process, molten aluminum so from side formed flow velocity enter feed pipe, be involved in so as to greatly reduce molten aluminum band The heavy collection object of bottom of furnace body, while in pressure release, the molten aluminum laterally to flow back will not sink to bottom of furnace body collection object and form directly impact With stirring, filter screen set in addition can further be filtered molten aluminum, bad so as to greatly avoid wheel hub production slag inclusion Scrap situation, effectively increase the production quality of wheel hub, have the characteristics that it is simple in structure and highly practical, suitable for promote and apply.

Description of the drawings

Fig. 1 is that the molten aluminum of the utility model enters status architecture schematic diagram；

Fig. 2 is the molten aluminum reflux state structure diagram of the utility model；

Fig. 3 is that the molten aluminum of the prior art enters status diagram；

Fig. 4 is the molten aluminum reflux state schematic diagram of the prior art.

Specific embodiment

For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with attached drawing, to this practicality It is novel to be described in further detail.

It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this reality The ordinary meaning understood with novel one of ordinary skill in the art.

In the description of the present application, it is to be understood that the orientation or position relationship of the instructions such as term " on ", " under " are base In attached orientation shown in FIG. 1 or position relationship, be for only for ease of description the utility model and simplify description rather than instruction or Imply that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that Limitation to the utility model.

As shown in Figs 1-4, the ceramic feed pipe structure of a kind of low pressure wheel hub casting, including be connected to hub mold cavity with The feed pipe component 2 of guide is used between 1 inner cavity of furnace body, the feed pipe component to include outer barrel 21, inner cylinder 22 and filter screen 23；Hub mold cavity and furnace body are well known prior art characteristic, the concrete structure composition, installation relation and function of the two It does not repeat herein, in addition hub mold cavity is not shown in the accompanying drawings.

The outer barrel is inserted into furnace body inner cavity in vertical, the upper end opening of outer barrel and on furnace body, the lower end of outer barrel It closes and is set with furnace body intracavity bottom spacing, uniformly opened up centered on outer barrel axle center in the circumferential side wall of outer barrel lower end There are multiple feed inlets 211, according to the technical knowledge in the field, outer barrel is cylinder-like structure, when manufacture is embodied, be may be selected The outer barrel bottom end processed is welded a plectane and can be arranged as required to as sealing or closure member, the quantity of feed inlet, preferably 3-5, multiple feed inlets can avoid the concentration degree that molten aluminum 3 enters, and cause too fast to the flow velocity of a direction initialization molten aluminum, play point Stream or the effect of dispersion, make molten aluminum from feed pipe it is circumferential even into, so as to accordingly avoid sinking to bottom of furnace body collection slag or its The band volume of its impurity, defined herein heavy collection slag or other impurity are heavy collection impurity layer 4, are improved into the pure of feed pipe molten aluminum Degree.

The filter screen is arranged on the intracavity bottom of outer barrel and the covering feed inlet, and outer barrel is placed in the inner cylinder, and The lower end of inner cylinder is contradicted on the filter screen, and filter screen is used for entering the molten aluminum in feed pipe by feed inlet into traveling one The filtering of step is placed on the mechanical property that outer barrel can both increase the tube body of charging in inner cylinder, can also be played by its own gravity of inner cylinder Clamping or fixed function to filter screen.

A kind of operation principle of the low pressure wheel hub casting of the technical program with ceramic feed pipe structure in wheel hub production process：

The utility model selection open up feed inlet on the side wall of feed pipe, in pressure process, molten aluminum sideways through Feed inlet enters feed pipe namely molten aluminum and forms flow velocity from the lateral of feed pipe, and then effectively prevents sinking to bottom of furnace body collection Impurity layer forms band volume, it is therefore prevented that heavy collection slag or other impurity enter in feed pipe；In pressure leak process, due to aluminium in feed pipe Liquid molten aluminum in mould gate and furnace body there are certain difference in height, and then makes during pressure release that molten aluminum can flow back to furnace body in feed pipe It is interior, and flow back to the molten aluminum in furnace body and the lateral flow velocity of opposite feed pipe is generated at feed inlet, lateral flow velocity will not be to stove Body bottom sinks collection impurity layer and forms directly impact and stirring, is required in process of production so as to meeting or reach molten aluminum in furnace body Degree of purity；In addition, the filter screen that setting covers at feed inlet, makes molten aluminum be carried out when passing through feed inlet by filter screen further Filtering；The feed pipe of Pass through above-mentioned technical proposal is applied to effectively improve molten aluminum purity in wheel hub production, it is ensured that low pressure is cast The quality of wheel hub is made, reduces slag inclusion fraction defective and scrappage, there is apparent progress compared with prior art, whether economic effect Benefit or social benefit all achieve breakthrough raising, and have the characteristics that it is simple in structure and highly practical, suitable for promote answer With.

As a kind of preferred technical solution, spacing is 80- between the lower end of the outer barrel and furnace body intracavity bottom 120mm, preferably 100mm, the spacing have passed through the verification in actual application, are avoiding forming band volume to heavy collection impurity layer Under the conditions of, and the reasonable application to furnace body inner cavity molten aluminum can be met.

As a kind of preferred technical solution, the lower end of the feed inlet flushes with the intracavity bottom of outer barrel, can be conducive to The installation of strainer if excessively high, needs to consume longer filter screen, ensures to need the use function of filtering molten aluminum.

As a kind of preferred technical solution, the mesh number of the filter screen is 20 mesh, and the particle with reference to heavy collection impurity layer is big Small and practical application experience selects the filter screen satisfaction of 20 mesh to the filtering technique needs of molten aluminum.

As a kind of preferred technical solution, the filter screen is made of ceramic materials, and ceramic material is a kind of heat resistance Can the good and verification Jing Guo practical application, meet the use function needs of the technical program.

Above explanation and embodiment are only exemplary, do not form any restrictions to the scope of the utility model.This Field technology personnel should be understood that can be to utility model technical side under the spirit and scope without departing from the utility model The details and form of case are modified or are replaced, but these modifications and replacement are each fallen in the scope of protection of the utility model.

Claims

1. a kind of ceramic feed pipe structure of low pressure wheel hub casting, is used including being connected between hub mold cavity and furnace body inner cavity In the feed pipe component of guide, it is characterised in that：The feed pipe component includes outer barrel, inner cylinder and filter screen；

The outer barrel is inserted into furnace body inner cavity in vertical, the upper end opening of outer barrel and on furnace body, the lower end closed of outer barrel And set with furnace body intracavity bottom spacing, it is uniformly offered centered on outer barrel axle center in the circumferential side wall of outer barrel lower end more A feed inlet；

The filter screen is arranged on the intracavity bottom of outer barrel and the covering feed inlet, and outer barrel, and inner cylinder are placed in the inner cylinder Lower end contradict on the filter screen.

2. a kind of ceramic feed pipe structure of low pressure wheel hub casting according to claim 1, it is characterised in that：The outer barrel Lower end and furnace body intracavity bottom between spacing be 80-120mm.

3. a kind of ceramic feed pipe structure of low pressure wheel hub casting according to claim 1, it is characterised in that：The charging The lower end of mouth is flushed with the intracavity bottom of outer barrel.

4. a kind of ceramic feed pipe structure of low pressure wheel hub casting according to claim 1, it is characterised in that：The filtering The mesh number of net is 20 mesh.

5. a kind of ceramic feed pipe structure of low pressure wheel hub casting according to claim 1, it is characterised in that：The filtering Net is made of ceramic materials.