CN205341817U - Rail brace lost pattern casting mould that disappears - Google Patents
Rail brace lost pattern casting mould that disappears Download PDFInfo
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- CN205341817U CN205341817U CN201521111590.1U CN201521111590U CN205341817U CN 205341817 U CN205341817 U CN 205341817U CN 201521111590 U CN201521111590 U CN 201521111590U CN 205341817 U CN205341817 U CN 205341817U
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- rail brace
- casting mould
- sandbox
- sprue
- mold casting
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Abstract
The utility model discloses a rail brace lost pattern casting mould that disappears. Rail brace lost pattern casting mould that disappears includes molding sand, last sandbox, lower sandbox, connects fixing device and a plurality of rail brace disappearance mould, it has the road junction of watering to go up the sandbox, the fixing device centre gripping go up the sandbox with the sandbox sets up in order to form airtight accommodating space relatively down, rail brace disappearance mould accept in accommodating space, the molding sand fill in accommodating space, and form annular cross gate and sprue in the molding sand. The utility model provides a specific process of modified had cancelled the processing volume during rail brace lost pattern casting mould that disappears utilized the lost pattern casting that disappears, and its casting precision grade and roughness grade all are higher than former ordinary sand casting, simultaneously, size, deformations problems obtain solving, three seams do not appear during the foundry goods assembly, do not need the grinding -in, and work load reduces, and processing cycle shortens, and manufacturing cost declines to a great extent, has reduced the wasting of resources.
Description
Technical field
This utility model relates to railway switch rail brace, especially, relates to a kind of rail brace Full mold casting mould.
Background technology
In the 80s and 90s in last century, domestic track switch rail brace class ironcasting material major part is sand casting malleable cast iron.Sand casting is always up domestic commonly used conventional casting methods for many years, and in track switch product, the foundry goods whether malleable cast iron such as rail brace of sand casting or its surface quality of spheroidal graphite cast-iron are all poor.
There is bigger torsional deformation in sand casting rail brace foundry goods, dimensional accuracy grade is low, it is impossible to meet instructions for use.Rail brace needs whole machinings with rail, three mating surfaces of backing plate, rail brace and steel rail web contact surface require to be arc contact surface, and arc contact surface is difficult to, and machine is actual in linear contact lay after adding, do not allow during assembling that three road seam (rail brace and upper and lower two the arc mating surfaces of steel rail web occur, it is not allow for gap with one mating surface of backing plate, is commonly called as and does not allow " three road seams "), need grinding-in, workload increases, process-cycle is long, strengthens production cost, wastes resource.Forming a complete production network of serious restriction whole group of track switch of domestic railway switch, therefore when attempting multiple improvement casting technique and can not solve the problems referred to above, how to use the casting technique of a kind of advanced person, cancel processing capacity, solve thin-walled, hollow out class rail brace casting deformation, improve dimensional accuracy, cancel processing capacity and meet the technical barrier that prescription just becomes urgently to be resolved hurrily.
Utility model content
In order to solve the technical problem of above-mentioned rail brace Full mold casting mould, this utility model provides a kind of rail brace Full mold casting mould.
The rail brace Full mold casting mould that this utility model provides includes molding sand, upper sandbox, lower sandbox, connect fixing device and multiple rail brace evaporative pattern, described upper sandbox has sprue channel open, described fixing device clamps described upper sandbox and described lower sandbox is oppositely arranged to form airtight receiving space, described rail brace evaporative pattern is contained in described receiving space, described molding sand is filled in described receiving space, and in described molding sand, form circular cross-runner and sprue, described circular cross-runner is located in described molding sand and the two ends of described circular cross-runner connect with described sprue, described sprue connects described circular cross-runner and described sprue channel open, the plurality of rail brace evaporative pattern parallel interval is located on described circular cross-runner and communicates therewith.
In a kind of preferred embodiment of the rail brace Full mold casting mould of this utility model offer, the fixing device of described connection includes fastening bolt and clamp nut, described upper sandbox and the two ends of the described lower sandbox engaging lug that forming position is corresponding respectively, engaging lug described in described fastening bolt-through and being fixed by described clamp nut.
In a kind of preferred embodiment of the rail brace Full mold casting mould of this utility model offer, the quantity of described rail brace evaporative pattern is 12, each column six, is set to two row and two row parallel interval are arranged.
In a kind of preferred embodiment of the rail brace Full mold casting mould of this utility model offer, the bottom of two adjacent described rail brace evaporative patterns is provided with rinforcement bar.
In a kind of preferred embodiment of the rail brace Full mold casting mould of this utility model offer, the end of each described rail brace evaporative pattern is provided with anti-deformation process muscle.
In a kind of preferred embodiment of the rail brace Full mold casting mould of this utility model offer, bottom described sprue, it is provided with the buffering well connected with described sprue.
In a kind of preferred embodiment of the rail brace Full mold casting mould of this utility model offer, two adjacent described rail brace evaporative pattern spacing are at 60-100mm.
In a kind of preferred embodiment of the rail brace Full mold casting mould of this utility model offer, between described sprue channel open and described sprue, it is provided with lute and diaphragm seal.
In a kind of preferred embodiment of the rail brace Full mold casting mould of this utility model offer, bottom described lower sandbox, it is provided with axle vacuum hole.
Compared to prior art, the rail brace Full mold casting mould that this utility model provides uses a kind of special process method of improvement in lost foam casting to eliminate processing capacity, and its casting accuracy grade and roughness grade are above former ordinary sand casting；Meanwhile, size, problem on deformation are solved, and three road seams do not occur, do not need grinding-in during foundry goods assembling, and workload reduces, and the process-cycle shortens, and production cost declines to a great extent, and decreases the wasting of resources.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, below the accompanying drawing used during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the cross-sectional view of a kind of embodiment of the rail brace Full mold casting mould that this utility model provides；
Fig. 2 is the internal structure side view of rail brace Full mold casting mould shown in Fig. 1；
Fig. 3 is the internal structure rearview of rail brace Full mold casting mould shown in Fig. 1.
Detailed description of the invention
Technical scheme in this utility model embodiment will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Based on the embodiment in this utility model, all other embodiments that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
Please refer to Fig. 1, Fig. 2 and Fig. 3, the open a kind of rail brace Full mold casting mould of this utility model, including molding sand 1, upper sandbox 2, lower sandbox 3, connect fixing device and multiple rail brace evaporative pattern 4, described upper sandbox 2 has sprue channel open 21, described fixing device clamps described upper sandbox 2 and described lower sandbox 3 is oppositely arranged to form airtight receiving space, described rail brace evaporative pattern is contained in described receiving space, described molding sand 1 is filled in described receiving space, and in described molding sand, form circular cross-runner 11 and sprue 12, described circular cross-runner 11 is located in described molding sand 1 and the two ends of described circular cross-runner 11 connect with described sprue 12, described sprue 12 connects described circular cross-runner 11 and described sprue channel open 21, the plurality of rail brace evaporative pattern 4 parallel interval is located on described circular cross-runner 11 and communicates therewith；In the present embodiment, also including necking down ingate 13, described circular cross-runner 11 is connected with described rail brace evaporative pattern 4 by described necking down ingate 13.
The fixing device of described connection includes fastening bolt 5 and clamp nut 6, described upper sandbox 2 and the two ends of described lower sandbox 3 engaging lug that forming position is corresponding respectively, and described fastening bolt 5 is run through described engaging lug and fixed by described clamp nut 6.
In the present embodiment, the quantity of described rail brace evaporative pattern 4 is 12, each column six, is set to two row and two row parallel interval are arranged；The bottom of two adjacent described rail brace evaporative patterns 4 is provided with rinforcement bar 41, and the end of each described rail brace evaporative pattern 5 is provided with anti-deformation process muscle 42.
The buffering well 7 connected with described sprue 12 it is provided with bottom described sprue 12.
It is provided with lute and diaphragm seal between described sprue channel open 21 and described sprue 12；It is provided with axle vacuum hole bottom described lower sandbox 3.
Described rail brace Full mold casting mould is specifically of a size of:
Dead head 21 sectional dimension: Φ 130mm(is tubaeform)；Sprue 12 sectional dimension: Φ 50mm；Circular cross-runner 11 sectional dimension: 50mm × 50mm；Necking down ingate 13 sectional dimension: 10mm × 40mm.
Two adjacent described rail brace evaporative pattern 4 spacing are at 60-100mm；One case 2 groups (totally 24), two adjacent groups spacing controls at 80 ∽ 140mm, eliminates the degree of packing inadequate casting deformation when producing dry sand ram-jolt, other apperances of the too high damage of sand temperature during cast, and foundry goods cool down the adverse effect such as slower.
In sum, the rail brace Full mold casting mould that this utility model provides uses a kind of special process method of improvement in lost foam casting to eliminate processing capacity, and its casting accuracy grade and roughness grade are above former ordinary sand casting；Meanwhile, size, problem on deformation are solved, and three road seams do not occur, do not need grinding-in during foundry goods assembling, and workload reduces, and the process-cycle shortens, and production cost declines to a great extent, and decreases the wasting of resources.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing this utility model description to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical field, all in like manner include within scope of patent protection of the present utility model.
Claims (9)
1. a rail brace Full mold casting mould, it is characterized in that, including molding sand, upper sandbox, lower sandbox, connect fixing device and multiple rail brace evaporative pattern, described upper sandbox has sprue channel open, described fixing device clamps described upper sandbox and described lower sandbox is oppositely arranged to form airtight receiving space, described rail brace evaporative pattern is contained in described receiving space, described molding sand is filled in described receiving space, and in described molding sand, form circular cross-runner and sprue, described circular cross-runner is located in described molding sand and the two ends of described circular cross-runner connect with described sprue, described sprue connects described circular cross-runner and described sprue channel open, the plurality of rail brace evaporative pattern parallel interval is located on described circular cross-runner and communicates therewith.
2. rail brace Full mold casting mould according to claim 1, it is characterized in that, the fixing device of described connection includes fastening bolt and clamp nut, described upper sandbox and the two ends of the described lower sandbox engaging lug that forming position is corresponding respectively, engaging lug described in described fastening bolt-through and being fixed by described clamp nut.
3. rail brace Full mold casting mould according to claim 1, it is characterised in that the quantity of described rail brace evaporative pattern is 12, each column six, is set to two row and two row parallel interval are arranged.
4. rail brace Full mold casting mould according to claim 3, it is characterised in that the bottom of two adjacent described rail brace evaporative patterns is provided with rinforcement bar.
5. rail brace Full mold casting mould according to claim 3, it is characterised in that the end of each described rail brace evaporative pattern is provided with anti-deformation process muscle.
6. rail brace Full mold casting mould according to claim 1, it is characterised in that be provided with the buffering well connected with described sprue bottom described sprue.
7. rail brace Full mold casting mould according to claim 1, it is characterised in that two adjacent described rail brace evaporative pattern spacing are at 60-100mm.
8. rail brace Full mold casting mould according to claim 1, it is characterised in that be provided with lute and diaphragm seal between described sprue channel open and described sprue.
9. rail brace Full mold casting mould according to claim 1, it is characterised in that be provided with axle vacuum hole bottom described lower sandbox.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521111590.1U CN205341817U (en) | 2015-12-29 | 2015-12-29 | Rail brace lost pattern casting mould that disappears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521111590.1U CN205341817U (en) | 2015-12-29 | 2015-12-29 | Rail brace lost pattern casting mould that disappears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205341817U true CN205341817U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521111590.1U Active CN205341817U (en) | 2015-12-29 | 2015-12-29 | Rail brace lost pattern casting mould that disappears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205341817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499503A (en) * | 2015-12-29 | 2016-04-20 | 宝鸡中铁宝桥天元实业发展有限公司 | Rail brace expendable pattern casting method and casting mold for same |
-
2015
- 2015-12-29 CN CN201521111590.1U patent/CN205341817U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499503A (en) * | 2015-12-29 | 2016-04-20 | 宝鸡中铁宝桥天元实业发展有限公司 | Rail brace expendable pattern casting method and casting mold for same |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |