Casting pouring system of diesel engine flywheel
By optimizing the design of the diesel flywheel casting system, the shrinkage defect problem is solved, the product pass rate is improved and the production cost is reduced.
Patent Information
- Application Number
- CN202422526611.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-18
AI Technical Summary
The casting and casting systems of existing diesel engine flywheels are prone to shrinkage defects during solidification, resulting in low product qualification rate and increased production costs.
An improved casting system is adopted, including a combination design of straight runners, slow runners, risers, inner runners, cold iron and foam ceramic filters, to avoid shrinkage defects by optimizing the flow path of the iron liquid and pressure replenishment effect.
It improves the pass rate of flywheel castings, reduces internal defects, and reduces production costs.
Smart Images
Figure CN223250496U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of diesel engine flywheel casting, in particular to a casting pouring system for a diesel engine flywheel. Background Art
[0002] The flywheel is a very important component in a diesel engine, storing energy, ensuring stable operation, ensuring inertia, and assisting starting. To speed up the production of diesel engine flywheels, this type of product is generally manufactured using a casting process.
[0003] Currently, existing diesel engine flywheel casting systems are prone to developing defects such as shrinkage and porosity within the flywheel casting after solidification during actual use, thereby reducing the diesel engine flywheel's pass rate and significantly increasing production costs. Therefore, there is an urgent need to develop a diesel engine flywheel casting system that can address these issues. Utility Model Content
[0004] The utility model provides a casting pouring system for a diesel engine flywheel, the purpose of which is to solve the technical problems raised in the above background technology.
[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:
[0006] The utility model is a casting pouring system for a diesel engine flywheel, comprising a flywheel casting body, a sprue vertically arranged on one side of the flywheel casting body, a circular chill arranged at the middle of the flywheel casting body, and an arc-shaped chill arranged at the edge of the flywheel casting body; the lower end of the sprue is horizontally connected to a slow runner; the end of the slow runner away from the sprue is vertically connected to a riser; a pad is fixed on the riser; a first ingrown gate connected to the riser is fixed on the upper surface of the pad; the first ingrown gate conflicts with the upper edge of the flywheel casting body; a pair of cross runners are horizontally connected to the lower part of the riser; a plurality of second ingrowns are connected side by side to the two cross runners; and the plurality of second ingrowns all conflict with the lower edge of the flywheel casting body.
[0007] As an optimal technical solution of the present invention, the circular chill is coaxially arranged with the flywheel casting body; the circular chill and the arc-shaped chill are both arranged below the flywheel casting body; the arc-shaped chill and the riser are respectively arranged on opposite sides of the circular chill.
[0008] As a preferred technical solution of the present invention, a foam ceramic filter is installed in the slow flow channel.
[0009] The utility model has the following beneficial effects:
[0010] The utility model pours molten iron into the sprue, filters it through a foam ceramic filter, and then uses a slow flow channel to transport the molten iron to the riser. The riser then transports the molten iron to the mold cavity of the flywheel casting body through a first ingrown channel. At the same time, the riser transports the molten iron to two cross runners respectively. The cross runner then transports the molten iron to the mold cavity of the flywheel casting body through multiple second ingrowns. Since the first ingrown channel is increased by the spacer block, the pressure and gravity shrinkage compensation effect can be improved, and the shrinkage compensation effect can be enhanced. The evenly distributed second ingrown channels and the arrangement of the circular chiller and the arc-shaped chiller can enable the flywheel casting body to achieve the effect of simultaneous solidification, avoid defects such as shrinkage and porosity inside the product, effectively improve the product qualification rate, and have high market application value.
[0011] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0013] Figure 1 The utility model is a structural schematic diagram of a casting pouring system for a diesel engine flywheel.
[0014] Figure 2 for Figure 1 Bottom view of the structure.
[0015] Figure 3 for Figure 1 top view of the structure.
[0016] Figure 4 This is a schematic diagram of the relative positions of the circular chill, arc-shaped chill and riser of the present invention.
[0017] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0018] 1-flywheel casting body, 2-sprue, 3-round chiller, 4-arc chiller, 5-slow runner, 6-riser, 7-pad, 8-first ingrate, 9-cross runner, 10-second ingrate, 11-foam ceramic filter. DETAILED DESCRIPTION
[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0020] Example:
[0021] See also Figure 1-4 As shown, the utility model is a casting pouring system for a diesel engine flywheel, comprising a flywheel casting body 1, a sprue 2 vertically arranged on one side of the flywheel casting body 1, a circular chill 3 arranged in the middle of the flywheel casting body 1, and an arc-shaped chill 4 arranged at the edge of the flywheel casting body 1; the lower end of the sprue 2 is horizontally connected to a slow runner 5; a conventional foam ceramic filter 11 in the field is installed in the slow runner 5; the end of the slow runner 5 away from the sprue 2 is vertically connected to a riser 6; a conventional padding block 7 in the field is fixed on the riser 6; the upper end of the padding block 7 is connected to the flywheel casting body 1; the lower end of the sprue 2 is connected to a slow runner 5; a conventional foam ceramic filter 11 in the field is installed in the slow runner 5; the upper end of the slow runner 5 is connected to the riser 6; the upper end of the padding block 7 ... A first ingrown channel 8 connected to the riser 6 is fixed on the surface; the first ingrown channel 8 conflicts with the upper edge of the flywheel casting body 1; a pair of cross runners 9 are horizontally connected to the lower part of the riser 6; a plurality of second ingrowns 10 are evenly connected to the two cross runners 9 side by side; the plurality of second ingrowns 10 all conflict with the lower edge of the flywheel casting body 1; the circular chill 3 is coaxially arranged with the flywheel casting body 1; the circular chill 3 and the arc-shaped chill 4 are both arranged below the flywheel casting body 1; the arc-shaped chill 4 and the riser 6 are respectively arranged on opposite sides of the circular chill 3. During use, the molten iron is poured into the sprue 2, filtered through the foam ceramic filter 11, and then transported to the riser 6 by the slow flow channel 5. The riser 6 then transports the molten iron to the cavity of the flywheel casting body 1 through the first ingrowth 8. At the same time, the riser 6 transports the molten iron to the two cross runners 9 respectively, and the cross runner 9 then transports the molten iron to the cavity of the flywheel casting body 1 through multiple second ingrowths 10. Since the first ingrowth 8 is raised by the spacer block 7, the pressure and gravity shrinkage compensation effect can be increased, and the shrinkage compensation effect can be enhanced. The evenly distributed second ingrowth 10 and the arrangement of the circular chill 3 and the arc-shaped chill 4 can enable the flywheel casting body 1 to achieve the effect of simultaneous solidification, avoid defects such as shrinkage inside the product, and effectively improve the product qualification rate.
[0022] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. A casting system for a diesel engine flywheel, characterized in that: The flywheel casting comprises a flywheel casting body (1), a sprue (2) vertically arranged on one side of the flywheel casting body (1), a circular chill (3) arranged at the middle of the flywheel casting body (1), and an arc-shaped chill (4) arranged at the edge of the flywheel casting body (1); The lower end of the sprue (2) is horizontally connected to a slow runner (5); the end of the slow runner (5) away from the sprue (2) is vertically connected to a riser (6); a padding block (7) is fixed on the riser (6); a first ingrown runner (8) connected to the riser (6) is fixed on the upper surface of the padding block (7); the first ingrown runner (8) is in conflict with the upper edge of the flywheel casting body (1); the lower part of the riser (6) is horizontally connected to a pair of cross runners (9); a plurality of second ingrowns (10) are connected side by side to the two cross runners (9); the plurality of second ingrowns (10) are in conflict with the lower edge of the flywheel casting body (1).
2. A casting pouring system for a diesel engine flywheel according to claim 1, characterized in that: The circular chill (3) is coaxially arranged with the flywheel casting body (1); the circular chill (3) and the arc-shaped chill (4) are both arranged below the flywheel casting body (1); the arc-shaped chill (4) and the riser (6) are respectively arranged on opposite sides of the circular chill (3).
3. A casting pouring system for a diesel engine flywheel according to claim 1 or 2, characterized in that: A foam ceramic filter (11) is installed in the slow flow channel (5).