CN210937018U - Gear case lid casting mould - Google Patents
Gear case lid casting mould Download PDFInfo
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- CN210937018U CN210937018U CN201921653006.3U CN201921653006U CN210937018U CN 210937018 U CN210937018 U CN 210937018U CN 201921653006 U CN201921653006 U CN 201921653006U CN 210937018 U CN210937018 U CN 210937018U
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Abstract
The utility model relates to a mold device field indicates especially that gear box cover casts and uses mould. The hollow box cover main body, the main runner component and the core main body matched with the cavity shape in the box cover main body are used; the box cover main body comprises a main shell and side wings, the main shell comprises a conical main cavity, one side of the main cavity is communicated with the cavity of the side wings, and the other side of the main cavity protrudes outwards to form a triangular boss; a core bar is arranged in the core main body; the molten iron is not easy to cause turbulent air entrainment, the casting defect risks such as cold shut, air holes and the like are caused, and the loam core is not easy to deform and warp.
Description
Technical Field
The utility model relates to a mold device field indicates especially that gear box cover casts and uses mould.
Background
The mold is used for obtaining various molds and tools of required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production; the pouring system of the mould is also called a runner system, which is a group of feeding channels for guiding the melt from the nozzle of the injection machine to the cavity; at present, the structure of a gearbox cover is complex in the production process, and a common pouring system is adopted, so that the 'turbulent air entrainment' of molten iron is easily caused, and the casting defect risks such as cold shut, air holes and the like are caused; the core is commonly called as 'sand core' or 'core', is used for forming the internal structure of a casting during casting, and is usually made of core sand prepared from raw sand and a binder by hand or machine in a core box; at present, the loam core is lifted upwards by the buoyancy of molten iron in the pouring process to influence the product quality, and the loam core is easy to deform and warp in the whole process to cause uneven wall thickness of a casting.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a be difficult for leading to molten iron "turbulent air entrainment", casting defect risks such as cold shut, gas pocket appear and the crooked gearbox case lid of loam core non-deformable casts and uses the mould.
The technical scheme of the utility model as follows:
the casting mould of the gear box cover comprises a hollow box cover main body, a main runner component and a core main body matched with the shape of an inner cavity of the box cover main body; the box cover main body comprises a main shell and side wings, the main shell comprises a conical main cavity, one side of the main cavity is communicated with the cavity of the side wings, and the other side of the main cavity protrudes outwards to form a triangular boss; the core main body is internally provided with a core bar.
The flow channel assembly comprises a main flow channel assembly and a first side flow channel assembly and a second side flow channel assembly which are respectively connected with the two sides of the main flow channel assembly; the main runner assembly comprises a vertical main runner and an arc runner communicated with the main runner; the first side runner assembly comprises a first cross runner connected with one end of the arc runner, a first vertical runner connected with the first cross runner and a first inclined runner connected with the first vertical runner; the second side runner assembly comprises a second transverse runner, a second vertical runner connected with the second transverse runner, and a second T-shaped runner obliquely connected with the second vertical runner.
The first cross pouring channel is provided with at least two first filters, and the second cross pouring channel is provided with at least three second filters; and the first filters are provided with ingates communicated with the injection parts.
The first cross pouring channel and the first oblique pouring channel are connected through a second filter.
Both sides of the second T-shaped pouring channel are provided with third filters, and the output ends of the third filters are connected with the branch pouring channels; and at least two flat pouring channels communicated with the injection piece are arranged on the branch pouring channels.
And at least four flat pouring channels communicated with the injection piece are arranged on the first inclined pouring channel.
The exposed end of the core main body is connected with a T-shaped core retaining shoulder; the core comprises a transverse part, a vertical part connected with the transverse part, and an inclined part connected with the vertical part.
Horizontal portion, perpendicular portion and slope all include relative two bracing pieces that set up, and the equipartition has at least one row's core bone between two bracing pieces.
The utility model has the advantages that: the shape of the box cover main body corresponds to the structure of the gear box cover, wherein a pouring system of bottom pouring and side pouring is formed through the matching of the main runner, the arc runner and the first side runner assembly and the second side runner assembly, a plurality of parts simultaneously feed iron and disperse heat junctions, thereby avoiding the turbulent air entrainment of molten iron and reducing the casting defect risks of cold shut, air holes and the like; by arranging the core main body, the core main body is directly smashed after the pouring is finished, and the material taking is convenient; the core frame is arranged to support the core main body, so that the strength of the core main body is improved; the core is designed into a T-shaped core shoulder blocking type, and the length of the core is adjusted to ensure that the weights of sand molds on two sides of a force bearing fulcrum of the loam core are basically consistent, so that the loam core is ensured not to be lifted upwards due to the buoyancy of molten iron in the pouring process; and the integral strength of the sand core is improved through the core frame, and the problem of uneven upper and lower wall thicknesses of the casting caused by deformation and warping of the sand core is prevented.
Drawings
The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.
Wherein: FIG. 1 is a schematic view of the main structure of the case cover of the present invention;
FIG. 2 is a schematic top view of the main body of the cover of the present invention;
FIG. 3 is a schematic view of the main structure of the core of the present invention;
FIG. 4 is a schematic view of the core structure of the present invention;
in the attached drawings, 1 is a box cover main body, 2 is a main pouring channel component, 3 is a main shell, 4 is a side wing, 5 is a main cavity, 7 is a triangular boss, 8 is a main pouring channel, 9 is an arc-shaped pouring channel, 13 is a first cross channel, 14 is a first vertical pouring channel, 15 is a first oblique pouring channel, 16 is a second cross channel, 17 is a second vertical pouring channel, 18 is a second T-shaped pouring channel, 19 is a branch pouring channel, 20 is a flat pouring channel, 21 is a core main body, 22 is a core bone, 23 is a T-shaped core sub-shoulder, 24 is a cross section, 25 is a vertical section, 26 is an inclined section, 27 is a supporting rod, 28 is a core arranging bone, 29 is a connecting point, and 30 is a core head.
Detailed Description
Referring to fig. 1-4, the mold for casting the gear box cover comprises a hollow box cover main body 1, a main runner component 2 and a core main body 21 matched with the shape of an inner cavity of the box cover main body; the box cover main body comprises a main shell 3 and side wings 4, the main shell comprises a conical main cavity 5, one side of the main cavity is communicated with the cavity of the side wings, and the other side of the main cavity protrudes outwards to form a triangular boss 7; a core 22 is provided in the core body. The shape of the box cover main body corresponds to the structure of the gear box cover, wherein a pouring system of bottom pouring and side pouring is formed through the matching of the main runner, the arc runner and the first side runner assembly and the second side runner assembly, a plurality of parts simultaneously feed iron and disperse heat junctions, thereby avoiding the turbulent air entrainment of molten iron and reducing the casting defect risks of cold shut, air holes and the like; by arranging the core main body, the core main body is directly smashed after the pouring is finished, and the material taking is convenient; the core frame is arranged to support the core main body, so that the strength of the core main body is improved; the core is designed into a T-shaped core shoulder blocking type, and the length of the core is adjusted to ensure that the weights of sand molds on two sides of a force bearing fulcrum of the loam core are basically consistent, so that the loam core is ensured not to be lifted upwards due to the buoyancy of molten iron in the pouring process; and the integral strength of the sand core is improved through the core frame, and the problem of uneven upper and lower wall thicknesses of the casting caused by deformation and warping of the sand core is prevented.
The flow channel assembly comprises a main flow channel assembly and a first side flow channel assembly and a second side flow channel assembly which are respectively connected with the two sides of the main flow channel assembly; the main runner assembly comprises a vertical main runner 8 and an arc runner 9 communicated with the main runner; the first side runner assembly comprises a first cross runner 13 connected with one end of the arc runner, a first vertical runner 14 connected with the first cross runner, and a first oblique runner 15 connected with the first vertical runner; the second side runner assembly includes a second runner 16, a second runner 17 to which the second runner is connected, and a second tee runner 18 to which the second runner is connected at an incline. The first side runner assembly is distributed along the outer edge of the triangular boss through the first cross gate, the first vertical gate and the first oblique gate, so that molten iron can quickly reach the top end of the triangular boss.
The first cross pouring channel is provided with at least two first filters, and the second cross pouring channel is provided with at least three second filters; and the first filters are provided with ingates communicated with the injection parts. Through setting up first filter in order to filter the back again through ingate inflow case lid main part to the molten iron of pouring for impurity in the molten iron is still less.
The first cross pouring channel and the first oblique pouring channel are connected through a second filter. By arranging the second filter, molten iron flowing in from the main runner is filtered and then flows into the first inclined pouring channel.
Both sides of the second T-shaped pouring channel are provided with third filters, and the output ends of the third filters are connected with the branch pouring channels 19; the branch pouring channels are provided with at least two flat pouring channels 20 communicated with the injection parts. By arranging the third filter, molten iron flowing from the main runner of the pile flows into the flat pouring channel after being filtered.
The first inclined pouring channel is provided with at least four flat pouring channels 20 communicated with the injection piece. The first inclined pouring channel is communicated with the box cover main body through the flat pouring channel.
The first filter comprises a filter box, and a first filter screen is transversely arranged in a filter cavity of the filter box; the bottom surface of the filter box is provided with an inlet, and the top surface of the filter box is provided with an outlet. The filter screen in the first filter is transversely arranged, and an outlet and an inlet are arranged on the upper surface and the lower surface of the filter box, so that molten iron can pass through and be filtered conveniently.
The second filter comprises a filter box, and a second filter screen is transversely arranged in a filter cavity of the filter box; an inlet is arranged below one side of the filter box, and an outlet is arranged above the other side of the filter box. The filter screen in the second filter is transversely arranged, and an outlet and an inlet are respectively arranged at the upper end and the lower end of the two side faces of the filter box, so that molten iron can pass through and be filtered conveniently.
The third filter comprises a filter box, and a third filter screen is vertically arranged in a filter cavity of the filter box; one side of the filter box is provided with an inlet, and the other side of the filter box is provided with an outlet. The filter screen in the third filter adopts vertical setting to set up export and import respectively on filter cartridge both sides face, so that the molten iron passes through and filters.
The exposed end of the core main body is connected with a T-shaped core retaining shoulder 23; the core 22 includes a horizontal portion 24, a vertical portion 25 connected to the horizontal portion, and an inclined portion 26 connected to the vertical portion.
The horizontal part, the vertical part and the inclined part respectively comprise two opposite support rods 27, and at least one core bar 28 is uniformly distributed between the two support rods. Through setting up two bracing pieces to and the core setting bone of arranging that sets up between two bracing pieces, strengthen the support effect greatly.
The support rod of the vertical part is connected with the corresponding inclined part support rod, and the exposed ends of the inclined part support rods are inwards bent and jointed to form a joint 29. The vertical part support rod is connected with the inclined part support rod, so that the shape of the mandril is more consistent with the shape of the core main body.
A cylindrical core print 30 is provided on the side wing of the core body. Mainly plays a role of supporting the core.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the techniques of the present invention are substantially any simple modification and equivalent changes to the above embodiments, all falling within the protection scope of the present invention.
Claims (8)
1. The mold for casting the gear box cover is characterized by comprising a hollow box cover main body, a main runner component and a core main body matched with the shape of an inner cavity of the box cover main body; the box cover main body comprises a main shell and side wings, the main shell comprises a conical main cavity, one side of the main cavity is communicated with the cavity of the side wings, and the other side of the main cavity protrudes outwards to form a triangular boss; the core main body is internally provided with a core bar.
2. The mold for casting a gearbox cover according to claim 1, wherein the runner assembly comprises a main runner assembly and a first side runner assembly and a second side runner assembly respectively connected to two sides of the main runner assembly; the main runner assembly comprises a vertical main runner and an arc runner communicated with the main runner; the first side runner assembly comprises a first cross runner connected with one end of the arc runner, a first vertical runner connected with the first cross runner and a first inclined runner connected with the first vertical runner; the second side runner assembly comprises a second transverse runner, a second vertical runner connected with the second transverse runner, and a second T-shaped runner obliquely connected with the second vertical runner.
3. The mold for casting a gearbox cover as recited in claim 2, wherein at least two first filters are provided on said first runner, and at least three second filters are provided on said second runner; and the first filters are provided with ingates communicated with the injection parts.
4. The mold for casting a gearbox cover as recited in claim 2, wherein said first cross runner and said first cross runner are connected by a second filter.
5. The mold for casting a gearbox cover as recited in claim 2, wherein a third filter is arranged on each side of the second T-shaped pouring channel, and the output ends of the third filters are connected with the branch pouring channels; and at least two flat pouring channels communicated with the injection piece are arranged on the branch pouring channels.
6. The mold for casting a gearbox cover as recited in claim 2, wherein said first angled gate comprises at least four gates in communication with the casting.
7. The mold for casting a gearbox cover as recited in claim 1, wherein a T-core sub shoulder is attached to the exposed end of the core body; the core comprises a transverse part, a vertical part connected with the transverse part, and an inclined part connected with the vertical part.
8. The mold for casting a gearbox cover as recited in claim 7, wherein said horizontal portion, vertical portion and inclined portion each comprise two opposing support bars, and wherein at least one winding core is disposed between said two support bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921653006.3U CN210937018U (en) | 2019-09-30 | 2019-09-30 | Gear case lid casting mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921653006.3U CN210937018U (en) | 2019-09-30 | 2019-09-30 | Gear case lid casting mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210937018U true CN210937018U (en) | 2020-07-07 |
Family
ID=71391441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921653006.3U Active CN210937018U (en) | 2019-09-30 | 2019-09-30 | Gear case lid casting mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210937018U (en) |
-
2019
- 2019-09-30 CN CN201921653006.3U patent/CN210937018U/en active Active
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