CN111003010A - Railway freight car bogie block casting type auxiliary framework - Google Patents
Railway freight car bogie block casting type auxiliary framework Download PDFInfo
- Publication number
- CN111003010A CN111003010A CN201911302401.1A CN201911302401A CN111003010A CN 111003010 A CN111003010 A CN 111003010A CN 201911302401 A CN201911302401 A CN 201911302401A CN 111003010 A CN111003010 A CN 111003010A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- guide frame
- reinforcing plate
- freight car
- railway freight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005266 casting Methods 0.000 title claims abstract description 37
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 33
- 238000009434 installation Methods 0.000 claims abstract description 8
- 239000004576 sand Substances 0.000 claims abstract description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 230000008901 benefit Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
- B61F5/52—Bogie frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention relates to the technical field of casting technology, and discloses a railway wagon bogie integrally cast type auxiliary framework which comprises a guide frame, wherein spring installation frame side plates are fixedly connected to the left side and the right side of the inner wall of the guide frame, a spring bearing platform is fixedly connected to the inside of the guide frame, a main reinforcing plate is fixedly connected to one side of the guide frame, an auxiliary reinforcing plate is fixedly connected to the top of the main reinforcing plate, a sand reduction groove is formed in the auxiliary reinforcing plate, a cross beam is fixedly connected to the top of the auxiliary reinforcing plate, an easily-cut dead head is formed in the top of a bearing saddle installation surface of the guide frame, an easily-cut dead head is formed in the top of the cross beam, a chill is fixedly connected to the inner side corner of the inner wall of the guide frame, the density of the guide frame area and the forming quality of the cross beam are improved through the matching use of the easily-cut dead head and the chill, the quality of the important, The effect of the subframe product with reliable performance.
Description
Technical Field
The invention relates to the technical field of casting technology, in particular to a railway wagon bogie block casting type auxiliary framework.
Background
With the high-speed development of national economy, railway transportation is rapidly increased, and higher requirements on rapidness, heavy load, safety and reliability of railway freight are provided. However, heavy-duty transportation and accelerated transportation cause that vehicle equipment damages more, the circuit warp and the maintenance work load increase, wheel rail wearing and tearing aggravation, become the outstanding problem of heavy-duty railway transportation, for solving the power problem between the good wheel rail, alleviate wheel rail wearing and tearing and circuit damage, reduce cost of maintenance, improve the transportation benefit, the design has developed the radial bogie of self-steering, this bogie has better curve trafficability characteristic, wheel rail wearing and tearing are little, lateral acceleration is little. The structural dimensions and performance of the bogie self-steering device, the critical component sub-frame, directly determine the stability, safety and reliability of the vehicle.
In order to further improve the product performance of vice framework, guarantee stability, the reliability of self-steering device, carried out optimal design to vice framework structure, by the original components of a whole that can function independently casting welded structure, designed into the whole casting structure, the product structure has obtained the optimization, and the wholeness can have obtained the promotion, nevertheless the casting degree of difficulty greatly increased: 1, the integral auxiliary framework is of a structure in a shape like a Chinese character ji, the outline size is large, the structure size is small, the integral rigidity is low, the casting deformation tendency is large, and the size is difficult to control; 2, the integral auxiliary framework is a thin-wall casting with uniform wall thickness, has large outline size, is not beneficial to setting riser feeding, has high compactness control difficulty, and is easy to generate defects such as cold shut, flow lines and the like; therefore, higher requirements are put on the subframe casting technology, and the difficulty of product manufacturing is increased.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a railway wagon bogie integrally cast auxiliary framework, which has the advantages of casting an auxiliary framework product with compact interior and reliable performance, realizing the integral consistency of the casting quality of the auxiliary framework and solving the problems of distortion and deformation of the integrally cast auxiliary framework, compactness of a guide frame and a cross beam and cold insulation of the cross beam.
(II) technical scheme
In order to realize the purposes of casting the secondary framework product with compact interior and reliable performance and realizing the integral consistency of the casting quality of the secondary framework, the invention provides the following technical scheme: the utility model provides a vice framework of railway freight car bogie block casting formula, includes the pedestal, the equal fixedly connected with spring mounting frame curb plate of the inner wall left and right sides of pedestal, the inside fixedly connected with spring cushion cap of pedestal, one side fixedly connected with main reinforcing plate of pedestal, the vice reinforcing plate of top fixedly connected with of main reinforcing plate, the sand reduction groove has been seted up to the inside of vice reinforcing plate, the top fixedly connected with crossbeam of vice reinforcing plate, the bottom fixedly connected with plate-shaped lacing wire of pedestal, water in the slot formula has been seted up to the inside of pedestal.
Preferably, one surface of the guide frame is a bearing saddle installation surface, an easily-cut riser is arranged at the top of the bearing saddle installation surface, and when the thick area at the top of the guide frame bearing saddle installation surface is fed, the periphery is fed by using the temperature gradient generated by the wall thickness difference between the thick area at the top of the guide frame and the peripheral thin-wall area, so that the compactness of the guide frame area is improved.
Preferably, the top of the cross beam is provided with an easily-cut riser, so that the cross beam is fed to ensure compactness, sufficient overflow steel is ensured at the cross beam part during pouring, the flow of molten steel at the cross beam is increased, the overflow of cold molten steel is ensured, the occurrence of cold shut and flow lines of the cross beam is avoided, and the forming quality of the cross beam is improved.
Preferably, the cold iron is fixedly connected with the corner on the inner side of the inner wall of the guide frame, the problem that the corner radius in the guide frame part is small and easy to shrink and crack is solved, the problems that the space between the corner of the installation surface of the bearing saddle of the guide frame and the guide table is small, the heat dissipation is poor and the hole is easy to shrink are solved, and the quality of the important area of the guide frame is ensured.
Preferably, the curved surface of the lower part of the upper wall thickness of the cross beam is a parting surface, so that most of sand cores are positioned in a lower mold, the problem of sand core positioning is solved, and size control is facilitated.
Preferably, the surface of the side plate of the spring mounting frame is fixedly connected with a cylindrical lacing wire, so that the problem of deformation of the side plate of the guide frame spring mounting frame is solved, and the distance between the side plates is ensured to be consistent up and down.
Preferably, the bottom of the main reinforcing plate is fixedly connected with a pouring system, molten metal is introduced into the casting from the reinforcing plate to form a gap type pouring system, the excessive temperature difference between the upper and lower parts of molten steel in the pouring process is avoided, riser feeding, gas discharging and slag collecting are facilitated, and the mold filling quality and the casting forming quality are improved.
(III) advantageous effects
Compared with the prior art, the invention provides a railway wagon bogie block casting type auxiliary framework, which has the following beneficial effects:
1. this vice framework of railway freight car bogie monolithic casting formula has seted up the easy-to-cut rising head through the bearing saddle installation face top of guide frame, and the easy-to-cut rising head has been seted up at the top of crossbeam, and the inboard corner fixedly connected with chill of inner wall of guide frame uses through the cooperation of easy-to-cut rising head and chill, improves the closely knit degree in guide frame region, the shaping quality of crossbeam, has also guaranteed the quality in the important region of guide frame to the effect of casting out inside closely knit, the reliable performance vice framework product has been reached.
2. This vice framework of railway freight car bogie block casting formula, the last wall thickness lower part curved surface through the crossbeam is the die joint, the fixed surface of spring mounting frame curb plate is connected with the cylinder lacing wire, the bottom fixedly connected with gating system of main reinforcing plate, through the die joint, the cylinder lacing wire is used with gating system's cooperation, the psammitolite location problem has been solved, do benefit to size control, the problem of leading frame spring mounting frame curb plate deformation, guarantee that the curb plate is apart from unanimous from top to bottom, do benefit to the rising head feeding simultaneously, give vent to anger, the collection sediment, improve and fill type quality and foundry goods shaping quality, thereby the effect of realizing vice framework casting quality's whole uniformity has been reached.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a partial cross-sectional view of the inventive structure.
Fig. 3 is a partial cross-sectional view of a structural beam of the present invention.
In the figure: 1-guide frame, 2-easily-cut risers, 3-spring mounting frame side plates, 4-spring bearing platforms, 5-main reinforcing plates, 6-auxiliary reinforcing plates, 7-sand reduction grooves, 8-cross beams, 9-pouring systems, 10-parting surfaces, 11-cylindrical lacing wires, 12-chills, 13-plate-shaped lacing wires, 14-bearing saddle mounting surfaces and 15-gap type ingates.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a railway freight car bogie cast-in-place sub-frame comprises a guide frame 1, one side of the guide frame 1 is a bearing saddle mounting surface 14, the top of the bearing saddle mounting surface 14 is provided with an easily-cut riser 2, when the thick area at the top of the bearing saddle mounting surface 14 of the guide frame 1 is fed, the periphery is fed by using the temperature gradient generated by the wall thickness difference between the thick area at the top of the guide frame 1 and the peripheral thin-wall area, the compactness of the guide frame 1 area is improved, the inner side corner of the inner wall of the guide frame 1 is fixedly connected with a chill 12, the problem that the inner corner radius of the guide frame 1 is small and the easily-cracked is solved, the problems that the space between the corner of the bearing saddle mounting surface 14 of the guide frame 1 and a guide table is small, the heat dissipation difference and the easy-shrinkage holes are solved, the quality of the important area of the guide frame 1 is ensured, the left side plate and the right side plate, the surface of the spring mounting frame side plate 3 is fixedly connected with a cylindrical lacing wire 11, the problem of deformation of the spring mounting frame side plate 3 of the guide frame 1 is solved, the distance between the side plates is ensured to be consistent up and down, the spring bearing platform 4 is fixedly connected inside the guide frame 1, the main reinforcing plate 5 is fixedly connected to one side of the guide frame 1, the bottom of the main reinforcing plate 5 is fixedly connected with a pouring system 9, molten metal is introduced into a casting from the reinforcing plate to form a gap type pouring system 9, the excessive temperature difference between the upper part and the lower part of the molten steel in the pouring process is avoided, the feeding, the air outlet and the slag collection of a riser are facilitated, the filling quality and the casting forming quality are improved, the top of the main reinforcing plate 5 is fixedly connected with an auxiliary reinforcing plate 6, a sand reduction groove 7 is formed inside the auxiliary reinforcing plate 6, the top of the auxiliary reinforcing plate 6 is fixedly connected with a cross beam 8, the top of the, the method has the advantages that enough overflow steel is ensured at the cross beam part during pouring, the flow quantity of the molten steel at the cross beam 8 is increased, the overflow of cold molten steel is ensured, the occurrence of cold shut and flow lines of the cross beam 8 is avoided, the forming quality of the cross beam 8 is improved, the upper wall thickness and lower part curved surface of the cross beam 8 is a parting surface 10, most of sand cores are ensured to be positioned in a lower mold, the problem of sand core positioning is solved, the size control is facilitated, the bottom of the guide frame 1 is fixedly connected with a plate-shaped lacing wire 13, and a gap type inner pouring gate 15 is arranged inside.
The working principle is as follows: when casting, molten steel is poured into the pouring system 9 and flows into the main reinforcing plate 5 and the auxiliary reinforcing plate 6 firstly, then leading the mixture into the guide frame 1 and the cross beam 8 through a gap pouring type ingate 15 formed at the joint of the main reinforcing plate 5 and the auxiliary reinforcing plate 6 and the casting, finally leading the mixture to flow into the top of a bearing saddle mounting surface 14 of the guide frame 1 and the easily-cut riser 2 at the upper part of the cross beam 8 to finish the whole casting molding process, the height of the gap pouring type ingate 15 is basically consistent with that of the casting, therefore, the casting pouring process is to introduce molten steel layer by layer, the mold filling is stable, the mold filling quality is good, the casting process has reasonable design, ensures the compactness, the internal quality and the surface quality of the integral auxiliary framework, better controls the integral size of the casting, meets the product quality requirement, the self-guiding bogie is normally assembled on the bogie, and the stability, safety and reliability of the operation of the self-guiding bogie are guaranteed.
In conclusion, the integral casting type subframe of the railway wagon bogie has the advantages that the top of the bearing saddle mounting surface 14 is provided with the easily-cut dead head 2, the top of the cross beam 8 is provided with the easily-cut dead head 2, the inner side corner of the inner wall of the guide frame 1 is fixedly connected with the chilling block 12, the easily-cut dead head 2 is matched with the chilling block 12 for use, the compactness of the area of the guide frame 1 and the forming quality of the cross beam 8 are improved, and the quality of the important area of the guide frame 1 is also ensured, so that the effect of casting a subframe product with compact inside and reliable performance is achieved, the upper wall thickness lower part curved surface of the cross beam 8 is the parting surface 10, the surface of the spring mounting frame side plate 3 is fixedly connected with the cylindrical lacing wire 11, the bottom of the main reinforcing plate 5 is fixedly connected with the pouring system 9, and the parting surface 10, the cylindrical lacing wire 11 and the pouring system, The problem of the deformation of the side plates 3 of the spring mounting frame of the guide frame 1 is solved, the vertical consistency of the distance between the side plates is ensured, simultaneously, riser feeding, air outlet and slag collection are facilitated, the mold filling quality and the casting molding quality are improved, and therefore the effect of realizing the integral consistency of the casting quality of the auxiliary framework is achieved.
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 (7)
1. The utility model provides a vice framework of railway freight car bogie block casting formula, includes pedestal (1), its characterized in that: the equal fixedly connected with spring installation frame curb plate (3) of the inner wall left and right sides of guide frame (1), the inside fixedly connected with spring cushion cap (4) of guide frame (1), one side fixedly connected with main reinforcing plate (5) of guide frame (1), vice reinforcing plate (6) of the top fixedly connected with of main reinforcing plate (5), subtract sand groove (7) have been seted up to the inside of vice reinforcing plate (6), top fixedly connected with crossbeam (8) of vice reinforcing plate (6), the bottom fixedly connected with plate-shaped lacing wire (13) of guide frame (1), runner (15) in the crack formula has been seted up to the inside of guide frame (1).
2. A railway freight car truck block cast subframe as defined in claim 1, wherein: one side of the guide frame (1) is a bearing saddle mounting surface (14), and an easily-cut riser (2) is arranged at the top of the bearing saddle mounting surface (14).
3. A railway freight car truck block cast subframe as defined in claim 1, wherein: the top of the cross beam (8) is provided with an easily-cut riser (2).
4. A railway freight car truck block cast subframe as defined in claim 1, wherein: and a chill (12) is fixedly connected to the inner side corner of the inner wall of the guide frame (1).
5. A railway freight car truck block cast subframe as defined in claim 1, wherein: the upper wall thickness lower part curved surface of crossbeam (8) is die joint (10).
6. A railway freight car truck block cast subframe as defined in claim 1, wherein: and the surface of the spring mounting frame side plate (3) is fixedly connected with a cylindrical lacing wire (11).
7. A railway freight car truck block cast subframe as defined in claim 1, wherein: the bottom of the main reinforcing plate (5) is fixedly connected with a pouring system (9).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911302401.1A CN111003010B (en) | 2019-12-17 | 2019-12-17 | Railway freight car bogie block casting type auxiliary framework |
| PCT/CN2020/110479 WO2021120662A1 (en) | 2019-12-17 | 2020-08-21 | Integral-casting-type sub-frame for railway wagon bogie |
| ZA2022/07053A ZA202207053B (en) | 2019-12-17 | 2022-06-24 | Integrally cast sub-frame of railway freight car bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911302401.1A CN111003010B (en) | 2019-12-17 | 2019-12-17 | Railway freight car bogie block casting type auxiliary framework |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111003010A true CN111003010A (en) | 2020-04-14 |
| CN111003010B CN111003010B (en) | 2021-04-09 |
Family
ID=70116618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911302401.1A Active CN111003010B (en) | 2019-12-17 | 2019-12-17 | Railway freight car bogie block casting type auxiliary framework |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN111003010B (en) |
| WO (1) | WO2021120662A1 (en) |
| ZA (1) | ZA202207053B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021120662A1 (en) * | 2019-12-17 | 2021-06-24 | 中车长江铜陵车辆有限公司 | Integral-casting-type sub-frame for railway wagon bogie |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114570877B (en) * | 2022-03-02 | 2023-12-22 | 安徽合力股份有限公司合肥铸锻厂 | Casting process of large-scale agricultural machinery cross beam |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4537138A (en) * | 1983-07-05 | 1985-08-27 | Standard Car Truck Company | Radial trucks |
| WO2000030914A1 (en) * | 1998-11-26 | 2000-06-02 | Herbert Scheffel | Cross-anchor railway bogie |
| CN1919676A (en) * | 2006-09-13 | 2007-02-28 | 中国南车集团眉山车辆厂 | Large axle load bogie |
| CN2905578Y (en) * | 2006-04-30 | 2007-05-30 | 中国南车集团眉山车辆厂 | Auxiliary truss bogie |
| CN102501872A (en) * | 2011-10-28 | 2012-06-20 | 南车眉山车辆有限公司 | Bogie auxiliary framework of railway wagon and production technology thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19922800B4 (en) * | 1998-05-20 | 2009-05-28 | Bayerische Motoren Werke Aktiengesellschaft | Subframe for a motor vehicle |
| CN204383484U (en) * | 2014-12-16 | 2015-06-10 | 南车眉山车辆有限公司 | A kind of flexible secondary framework |
| CN209553305U (en) * | 2018-11-13 | 2019-10-29 | 万向钱潮股份有限公司 | Integral type subframe |
| CN111003010B (en) * | 2019-12-17 | 2021-04-09 | 中车长江铜陵车辆有限公司 | Railway freight car bogie block casting type auxiliary framework |
-
2019
- 2019-12-17 CN CN201911302401.1A patent/CN111003010B/en active Active
-
2020
- 2020-08-21 WO PCT/CN2020/110479 patent/WO2021120662A1/en active Application Filing
-
2022
- 2022-06-24 ZA ZA2022/07053A patent/ZA202207053B/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4537138A (en) * | 1983-07-05 | 1985-08-27 | Standard Car Truck Company | Radial trucks |
| WO2000030914A1 (en) * | 1998-11-26 | 2000-06-02 | Herbert Scheffel | Cross-anchor railway bogie |
| CN2905578Y (en) * | 2006-04-30 | 2007-05-30 | 中国南车集团眉山车辆厂 | Auxiliary truss bogie |
| CN1919676A (en) * | 2006-09-13 | 2007-02-28 | 中国南车集团眉山车辆厂 | Large axle load bogie |
| CN102501872A (en) * | 2011-10-28 | 2012-06-20 | 南车眉山车辆有限公司 | Bogie auxiliary framework of railway wagon and production technology thereof |
Non-Patent Citations (2)
| Title |
|---|
| 周凌等: "转K7型转向架副构架结构优化研究", 《铁道车辆》 * |
| 陈春棉: "我国铁路货车径向转向架发展与运用现状", 《山东工业技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021120662A1 (en) * | 2019-12-17 | 2021-06-24 | 中车长江铜陵车辆有限公司 | Integral-casting-type sub-frame for railway wagon bogie |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA202207053B (en) | 2022-10-26 |
| CN111003010B (en) | 2021-04-09 |
| WO2021120662A1 (en) | 2021-06-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107716875B (en) | Subsurface chill formed by improved railcar coupler knuckle | |
| CN103846392B (en) | The casting method of spheroidal graphite cast-iron knuckle | |
| CN111003010B (en) | Railway freight car bogie block casting type auxiliary framework | |
| US8839843B1 (en) | Forming a mold for steel casting | |
| CN206425523U (en) | A kind of casting die being easily stripped | |
| CN105108105B (en) | A kind of bullet train cast aluminium gear-box upper box metal-mold low-pressure casting mould | |
| US8839844B1 (en) | Forming a mold for steel casting | |
| CN101342574A (en) | Design method for large-scale transverse beam casting parts | |
| CN102974772B (en) | Shaft box mold of rail wagon bogie | |
| CN101406931A (en) | Method for casting and forming middle cross-bracing two-axle bogie adapter and manufacturing technique | |
| CN201271736Y (en) | Cast of thick wall large plain cast | |
| CN103551509A (en) | HXB2 axle box casting method | |
| CN209830199U (en) | Heavy-duty locomotive coupler body casting mould | |
| CN202291287U (en) | Nodular cast iron gasoline engine main bearing cap casting die | |
| CN102941316B (en) | Production method for machine tool guide rail casts | |
| CN211135402U (en) | Steel casting forming die | |
| CN212042549U (en) | Core assembly feeding side pouring system for multiple base parts | |
| CN209811155U (en) | Hundred-ton-grade spent fuel container pouring system | |
| CN209288211U (en) | A kind of mold for permanent mold casting | |
| CN203356531U (en) | Forming die for engine cylinder head | |
| CN109482814A (en) | For the curb girder casting method on railway passenger train framework composition | |
| CN221890836U (en) | A mold for reducing the damage of steering knuckle | |
| CN112658215B (en) | Large casting pouring system and method for reducing pouring height | |
| CN213645794U (en) | Molding flask | |
| CN219786530U (en) | Three-phase linkage aluminum bracket low-pressure casting die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |