CN212285779U - Low-floor tram bogie integral axle bridge casting mould - Google Patents
Low-floor tram bogie integral axle bridge casting mould Download PDFInfo
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- CN212285779U CN212285779U CN201922276213.8U CN201922276213U CN212285779U CN 212285779 U CN212285779 U CN 212285779U CN 201922276213 U CN201922276213 U CN 201922276213U CN 212285779 U CN212285779 U CN 212285779U
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- riser
- heat
- axle bridge
- shaft head
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Abstract
The utility model discloses a whole axle bridge casting mould of low-floor tram bogie, the whole axle bridge casting process key point of tram bogie is: the design of a riser, the design of a chilling block, the design of a pouring system and the design of reverse deformation. The amplitude plate is provided with a heating and heat-insulating blind riser; the guide cylinder part is provided with a heat-insulating open riser and a heating agent; the neck part is designed with a trapezoid riser neck, and the upper part is designed with a heat-insulating open riser heating agent; the ingate is designed into one channel and is led in from a dead head of one end journal; designing a chill on the inner end surface of the shaft head; the inner end face of the shaft head and the amplitude plate are designed with the reversible deformation amount. The innovative process design and reasonable process parameter selection effectively ensure the quality of the axle bridge casting.
Description
Technical Field
The utility model relates to a whole axle bridge casting mould of low-floor tram bogie.
Background
With the increasing emphasis of the country on environmental protection, new energy vehicles are rapidly developed, the low-floor tramcar is a modern electric tramcar independently developed by the limited corporation of the middle-sized Qingdao four-side locomotive vehicle, has good environmental protection, safety, reliability, large passenger capacity and wide market prospect, the axle bridge of the bogie fittings is integrally designed and manufactured by changing the original split structure, the quality and the performance of the tramcar bogie are greatly improved, and the safety and the reliability of driving are further improved.
The axle bridge overall design forms the frame-shaped structure, and the structure size is great, has increased the deformation tendency when the axle bridge casting production, has increased the control degree of difficulty of the closely knit degree of axle head in axle bridge key region, has increased the degree of difficulty of the regional casting shaping of axle bridge plane, has increased the probability that axle bridge surface mix with, press from both sides sand, gas pocket defect forms, consequently, higher requirement has been proposed to the casting technique of axle bridge, the degree of difficulty of casting process design has been increased, consequently, axle bridge casting process design will have the innovation and optimize, in order to ensure that the casting quality of whole axle bridge satisfies the design requirement.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a whole axle bridge casting mould of low-floor tram bogie to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the axle bridge consists of axle heads at two ends and a middle web plate, and the open end of the axle head is a shaft neck;
the middle shaft head sand core of the mould consists of a shaft neck sand core and a shaft head inner end face sand core, and the right side of the outer frame core, the left side of the inner frame core and the left side of the outer frame core form a panel sand core;
the shaft head is provided with a guide cylinder, the amplitude plate is provided with a heating and heat-insulating blind riser, and the guide cylinder is provided with a heat-insulating open riser; the shaft neck is provided with a trapezoidal riser neck, and the top end of the trapezoidal riser neck is provided with a heat-insulating open riser sleeve; a direct pouring channel pipe is arranged at the upper end of the shaft neck and is connected with a forming pouring channel; a plate-shaped chill is arranged on the inner end surface of the shaft head;
the inner end face of the shaft head is provided with shaft head anti-deformation amount, and the amplitude plate is provided with frame anti-deformation amount.
Preferably, the heat-insulating open riser sleeve and the heat-insulating open riser are provided with exothermic agent inlets.
Preferably, the forming pouring gate is made of refractory bricks, and the periphery of the inlet is provided with anti-impact bricks and chromite sand.
Compared with the prior art, the beneficial effects of the utility model are that: the casting process has reasonable design, ensures the compactness, the internal quality and the surface quality of the integral axle bridge casting, well controls the size of the casting, meets the product quality requirement, ensures normal assembly of the bogie, runs stably, and ensures the safety and the reliability of the running of the tramcar. At present, the novel casting process realizes mass production and achieves the expected design target.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the casting mold structure of the present invention.
FIG. 3 is a side view of FIG. 2;
fig. 4 is a top view of fig. 2.
In the figure: 1 straight pouring channel pipe, 2 forming pouring channel, 3 anti-impact brick, 4 chromite sand, 05 plate-shaped chill, 06 exothermic compound, 07 ladder-opening riser neck, 8 bright heat-insulating riser sleeve, 9 bright heat-insulating riser, 10 dark heat-insulating riser, 11 shaft neck sand core, 12 shaft head inner end face sand core, 13 outer frame core right, 14 inner frame core left, 15 outer frame core left, 16 shaft head reverse deformation amount, 17 frame reverse deformation amount, 18 shaft head inner end face, 19 shaft neck, 20 guide cylinder and 21 plates.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a kind of low floor tram bogie whole axle bridge casting mould, the axle bridge is made up of axle head and middle breadth 21 of both ends, the open end of axle head is a journal 19;
as shown in fig. 2-3, the center axis head sand core of the mold consists of a shaft neck sand core 11 and a shaft head inner end surface sand core 12, and the outer frame core right 13, the inner frame core left 14 and the outer frame core left 15 form a panel sand core;
a guide cylinder 20 is arranged on the shaft head, a heating and heat-insulating blind riser 10 is arranged on the amplitude plate 21, and a heat-insulating open riser 9 is arranged on the guide cylinder 20; the shaft neck 19 is provided with a trapezoid riser neck 7, and the top end of the trapezoid riser neck 7 is provided with a heat-insulating open riser sleeve 8; the upper end of the shaft neck 19 is provided with a straight pouring gate pipe 1, and the straight pouring gate pipe 1 is connected with a forming pouring gate 2; the inner end surface 18 of the shaft head is provided with the plate-shaped chilling block 5, so that the cooling condition of the shaft head is improved, the feeding effect of a shaft neck riser on the shaft head is enhanced, the compactness of the shaft head is further ensured, the guide cylinder 20 and the shaft neck 19 adopt a heat-insulating open riser and a heating agent, and the shaft neck riser is designed into a trapezoidal structure, so that the feeding effect of the riser on a casting is obviously improved, the exhaust and slag collection capacity of the riser is enhanced, and the internal quality of a critical area of the casting is reliably ensured;
the ingate is designed into one channel and is led in from the journal 19 at one end, thereby avoiding the defects of cold shut, flow lines, poor forming and the like of the casting caused by liquid flow dispersion, being beneficial to floating impurities to a riser and improving the surface quality of the casting.
The inner end surface 18 of the shaft head is provided with the shaft head anti-deformation amount 16, the amplitude plate 21 is provided with the frame anti-deformation amount 17, the deformation caused by the shrinkage resistance of the casting and the workload of later-stage correction and adjustment are reduced, and the size and the machining size of the casting are ensured;
in order to prevent the sand washing of the pouring system, the pouring system is formed by a refractory brick molding pouring gate 2, and meanwhile, the periphery of a molten steel introducing area is provided with an anti-scouring brick 3 and chromite sand 4 to protect a journal sand core 11;
the open riser sleeve 8 and the open riser 9 are provided with exothermic agent inlets 6, in order to ensure the feeding effect of the open riser sleeve 8 and the open riser 9, the exothermic agent is added when molten steel is filled into the open riser sleeve 8 and the open riser 9 to two thirds, and the pouring is stopped when the exothermic agent floats to the side opening of the riser sleeve, so that the exothermic effect of the exothermic agent is prevented from being influenced by the exothermic agent overflowing the riser sleeve.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a whole axle bridge casting mould of low-floor tram bogie which characterized in that: the axle bridge consists of shaft heads at two ends and a middle web plate (21), and the open end of the shaft head is provided with a shaft neck (19);
the middle shaft head sand core of the mold consists of a shaft neck sand core (11) and a shaft head inner end surface sand core (12), and the right outer frame core (13), the left inner frame core (14) and the left outer frame core (15) form a panel sand core;
a guide cylinder (20) is arranged on the shaft head, a heating and heat-insulating blind riser (10) is arranged on the amplitude plate (21), and a heat-insulating open riser (9) is arranged on the guide cylinder (20); the shaft neck (19) is provided with a trapezoidal riser neck (7), and the top end of the trapezoidal riser neck (7) is provided with a heat-insulating open riser sleeve (8); the upper end of the shaft neck (19) is provided with a straight pouring channel pipe (1), and the straight pouring channel pipe (1) is connected with a forming pouring channel (2); a plate-shaped chill (5) is arranged on the inner end surface (18) of the shaft head;
the inner end face (18) of the shaft head is provided with a shaft head reversible deformation amount (16), and the amplitude plate (21) is provided with a frame reversible deformation amount (17).
2. The low-floor tram bogie integral axle bridge casting mold according to claim 1, characterized in that: the heat-insulating open riser sleeve (8) and the heat-insulating open riser (9) are provided with a heating agent inlet (6).
3. The low-floor tram bogie integral axle bridge casting mold according to claim 1, characterized in that: the forming pouring gate (2) is composed of refractory bricks, and the periphery of the inlet is provided with scour prevention bricks (3) and chromite sand (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922276213.8U CN212285779U (en) | 2019-12-17 | 2019-12-17 | Low-floor tram bogie integral axle bridge casting mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922276213.8U CN212285779U (en) | 2019-12-17 | 2019-12-17 | Low-floor tram bogie integral axle bridge casting mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212285779U true CN212285779U (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201922276213.8U Active CN212285779U (en) | 2019-12-17 | 2019-12-17 | Low-floor tram bogie integral axle bridge casting mould |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799073A (en) * | 2022-05-26 | 2022-07-29 | 共享铸钢有限公司 | Blind riser sand core structure and casting sand core structure |
-
2019
- 2019-12-17 CN CN201922276213.8U patent/CN212285779U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799073A (en) * | 2022-05-26 | 2022-07-29 | 共享铸钢有限公司 | Blind riser sand core structure and casting sand core structure |
| CN114799073B (en) * | 2022-05-26 | 2023-06-13 | 共享铸钢有限公司 | Blind riser sand core structure and casting sand core structure |
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