Casting mold for manufacturing gearbox of high-speed rail motor train unit

Abstract

The utility model discloses a casting mould for manufacturing a gearbox of a high-speed rail motor train unit, and relates to the technical field of gearbox casting moulds, the casting mould comprises a mould casting chassis, the surface of the top end of the mould casting chassis is provided with a mould disc placing groove, and the top end of one side in the mould disc placing groove is movably provided with an extrusion adjusting screw rod. A mold disc body is placed in a mold disc containing groove, the position of an extrusion limiting disc is adjusted by rotating an extrusion adjusting screw rod through an adjusting rotary disc, the extrusion limiting disc is directly attached to the surfaces of the two sides of the mold disc body for extrusion and fixing, and materials are poured into a mold injection molding groove; a limiting bolt groove in the bottom end of the top pressing mold disc is in butt joint with the position of a limiting bolt rod, injection molding operation is achieved through extrusion between the top pressing mold disc and the mold disc body, the limiting bolt rod extends into the limiting bolt groove, a buffer extrusion spring extrudes and extrudes, certain buffer operation is achieved, and the extrusion protection effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear box casting molds, in particular to a casting mold for manufacturing a high-speed railway EMU gear box. Background Art

[0002] In recent years, with the rapid development of rail transit technology, high-speed trains have become the preferred means of transportation for most passengers. The gearbox is the core component of the power bogie of the high-speed train, and it is the core unit for the high-speed train to achieve energy conversion and energy transmission. Therefore, the performance of the gearbox directly affects the safety and reliability of the high-speed train. In order to meet the lightweight requirements of the high-speed train, the gearbox is changed from cast iron casting to aluminum alloy casting. However, due to the defects of aluminum alloy such as low solidification temperature and poor fluidity during the casting process, coupled with the complex structure of the gearbox, when the existing casting mold for casting iron gearbox is used to cast aluminum alloy gearbox, it is very easy to cause shrinkage or cracks in the aluminum alloy gearbox because the existing casting mold is difficult to overcome the defects of the aluminum alloy liquid itself. Therefore, we redesigned a casting mold for manufacturing high-speed train gearboxes. Utility Model Content

[0003] The utility model aims to provide a casting mold for manufacturing a gear box of a high-speed railway EMU.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a casting mold for manufacturing a high-speed rail EMU gearbox, comprising a mold casting chassis, a mold disk placement groove is provided on the top surface of the mold casting chassis, an extrusion adjustment screw is movably installed on the top of one side of the interior of the mold disk placement groove, an adjusting turntable is fixedly connected to the top of one side of the extrusion adjustment screw, an extrusion limit disk is rotatably connected to the top of the side of the extrusion adjustment screw away from the adjusting turntable, a mold disk body is placed on one side of the extrusion limit disk, a top pressing mold disk is detachably installed on the top of the mold casting chassis, a limiting pin groove is provided on the bottom surface of one side of the top pressing mold disk, a buffer extrusion spring is fixedly connected to the inside of the limiting pin groove, and a limiting pin rod is fixedly connected to the top of one side of the mold casting chassis.

[0005] Preferably, the extrusion limiting disk is located inside the mold disk placement groove, and the connection relationship between the extrusion limiting disk and the mold disk body is contact extrusion fixed connection, and the extrusion limiting disks are symmetrically distributed on both sides of the mold disk body.

[0006] Preferably, the positions of the limit latch rod and the limit latch groove correspond one to one, the connection relationship between the limit latch groove and the limit latch rod is a latch connection, a buffer extrusion spring is provided inside the limit latch rod, and the connection relationship between the limit latch groove and the buffer extrusion spring is a contact extrusion connection.

[0007] Preferably, a telescopic connecting column is fixedly connected to the top of one side of the top pressing mold plate, and a shrinkage connecting rod is shrinkably connected to the top of one side of the telescopic connecting column. A mold injection groove is provided on the top surface of the mold plate body, and a buckle block is fixedly installed on the top of one side of the mold plate body. A buckle groove is provided inside the buckle block, and a first locking hole is provided on one side surface of the buckle block, and a locker is connected to the internal thread of the first locking hole.

[0008] Preferably, a sleeve rod is fixedly connected to the top end of one side of the mold casting chassis close to the buckle block, a rotating shaft is movably sleeved on one side surface of the sleeve rod, a snap arm is fixedly connected to the top end of one side of the rotating shaft, a second locking hole is opened on one side surface of the snap arm, and a top limit plate is fixedly connected to the top end of one side of the sleeve rod.

[0009] Preferably, the connection between the snap arm and the snap groove is a movable snap connection, the positions of the first locking hole and the second locking hole correspond one to one, and the connection between the locker and the second locking hole is a threaded connection.

[0010] Compared with the related art, the casting mold for manufacturing the gearbox of the high-speed train provided by the utility model has the following beneficial effects:

[0011] 1. The utility model provides a casting mold for manufacturing a gearbox for a high-speed train. The mold plate body is arranged to be placed inside a mold plate placement groove, the position of the extrusion limit plate is adjusted by rotating the extrusion adjustment screw by adjusting the turntable, the extrusion limit plate is directly attached to the two side surfaces of the mold plate body for extrusion and fixation, the material is poured into the inside of the mold injection groove, the limit latch groove at the bottom of the mold plate is pressed by the top to connect the position of the limit latch rod, the injection molding operation is realized by pressing the top between the mold plate and the mold plate body, the limit latch rod is extended into the inside of the limit latch groove and the buffer extrusion spring is extruded, which plays a certain buffering operation and has a protective extrusion effect.

[0012] 2. The utility model provides a casting mold for manufacturing a gearbox for a high-speed train. The rotation of the buckle arm is adjusted by setting a rotating shaft on the sleeve rod, and the buckle arm is extended into the interior of the buckle groove. At this time, the first locking hole and the second locking hole are aligned, and then the locker is installed in the second locking hole and the first locking hole to lock. The mold plate body is fixed and limited in the horizontal direction again, which further improves the stability of the mold plate body and the accuracy of the injection molding of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal top view of the mold casting chassis of the utility model;

[0015] Figure 3 It is a schematic diagram of the overall bottom view of the device of the utility model;

[0016] Figure 4 For this utility model Figure 2 A is an enlarged structural diagram of FIG.

[0017] Numbers in the figure: 1. mold casting chassis; 2. mold plate placement slot; 3. extrusion adjustment screw; 4. adjustment dial; 5. extrusion limit plate; 6. mold plate body; 7. top pressing mold plate; 8. limit latch slot; 9. buffer extrusion spring; 10. limit latch rod; 11. telescopic connecting column; 12. contraction connecting rod; 13. mold injection groove; 14. buckle block; 15. buckle slot; 16. first locking hole; 17. lock; 18. sleeve rod; 19. rotating shaft; 20. buckle arm; 21. second locking hole; 22. top limit plate. DETAILED DESCRIPTION

[0018] Embodiment 1:

[0019] See also Figure 1-4The utility model provides a technical solution: a casting mold for manufacturing a gearbox of a high-speed train, comprising a mold casting chassis 1, a mold plate placement groove 2 is provided on the top surface of the mold casting chassis 1, an extrusion adjustment screw 3 is movably installed on the top of one side of the inner side of the mold plate placement groove 2, an adjustment dial 4 is fixedly connected to the top of one side of the extrusion adjustment screw 3, an extrusion limit plate 5 is rotatably connected to the top of the side of the extrusion adjustment screw 3 away from the adjustment dial 4, a mold plate body 6 is placed on one side of the extrusion limit plate 5, a top pressing mold plate 7 is detachably installed on the top of the mold casting chassis 1, and a limited position plug is provided on the bottom surface of one side of the top pressing mold plate 7 Pin groove 8, the interior of the limit latch groove 8 is fixedly connected with a buffer extrusion spring 9, the top of one side of the mold casting chassis 1 is fixedly connected with a limit latch rod 10, the extrusion limit disk 5 is located inside the mold disk placement groove 2, the connection relationship between the extrusion limit disk 5 and the mold disk body 6 is a contact extrusion fixed connection, the extrusion limit disk 5 is symmetrically distributed on both sides of the mold disk body 6, the positions of the limit latch rod 10 and the limit latch groove 8 correspond one to one, the connection relationship between the limit latch groove 8 and the limit latch rod 10 is a latch connection, the interior of the limit latch rod 10 is provided with a buffer extrusion spring 9, and the connection relationship between the limit latch groove 8 and the buffer extrusion spring 9 is a contact extrusion connection.

[0020] In the implementation scheme, the mold disc main body 6 is arranged to be placed inside the mold disc placement groove 2, the position of the extrusion limit disc 5 is adjusted by rotating the extrusion adjustment screw 3 through the adjusting dial 4, the extrusion limit disc 5 is used to directly fit the two side surfaces of the mold disc main body 6 for extrusion and fixation, the material is poured into the inside of the mold injection groove 13, the position of the limit latch groove 8 at the bottom end of the mold disc 7 is connected to the limit latch rod 10 by pressing the top, the injection molding operation is achieved by pressing the extrusion between the mold disc 7 and the mold disc main body 6 from the top, the limit latch rod 10 is extended into the inside of the limit latch groove 8 and the buffer extrusion spring 9 for extrusion, which plays a certain buffering operation and has the effect of protecting extrusion.

[0021] Embodiment 2:

[0022] See also Figure 1-4The utility model provides a technical solution: a casting mold for manufacturing a gearbox of a high-speed train, comprising a top pressing mold plate 7, a top end of which is fixedly connected with a telescopic connecting column 11, a top end of which is contractionally connected with a contraction connecting rod 12, a top end surface of a mold plate body 6 is provided with a mold injection groove 13, a top end of which is fixedly installed with a buckle block 14, a buckle groove 15 is provided inside the buckle block 14, a first locking hole 16 is provided on a side surface of the buckle block 14, and a locking device is threadedly connected inside the first locking hole 16 17. A sleeve rod 18 is fixedly connected to the top of one side of the mold casting chassis 1 close to the buckle block 14, a rotating shaft 19 is movably sleeved on one side surface of the sleeve rod 18, a snap arm 20 is fixedly connected to the top of one side of the rotating shaft 19, a second locking hole 21 is provided on one side surface of the snap arm 20, a top limit plate 22 is fixedly connected to the top of one side of the sleeve rod 18, the connection relationship between the snap arm 20 and the buckle groove 15 is a movable snap connection, the positions of the first locking hole 16 and the second locking hole 21 correspond one to one, and the connection relationship between the lock 17 and the second locking hole 21 is a threaded connection.

[0023] In the implementation scheme, the rotation of the snap arm 20 is adjusted by setting the rotation of the rotating shaft 19 on the sleeve rod 18, and it extends into the interior of the snap groove 15. At this time, the first locking hole 16 and the second locking hole 21 are aligned, and then the locker 17 is installed in the second locking hole 21 and the first locking hole 16 to lock them. The mold plate body 6 is fixed and limited in the horizontal direction again, which further improves the stability of the placement of the mold plate body 6 and improves the accuracy of injection molding of the device.

[0024] Working principle:

[0025] The mold plate body 6 is placed inside the mold plate placement groove 2, and the position of the extrusion limit plate 5 is adjusted by rotating the extrusion adjustment screw 3 through the adjusting turntable 4. The extrusion limit plate 5 is directly attached to the two side surfaces of the mold plate body 6 for extrusion and fixing. The material is poured into the inside of the mold injection groove 13, and the limit latch groove 8 at the bottom of the mold plate 7 is pressed by the top to dock the position of the limit latch rod 10. The injection molding operation is achieved by pressing the extrusion between the mold plate 7 and the mold plate body 6 from the top. The limit latch rod 10 extends into the inside of the limit latch groove 8 and the buffer extrusion spring 9 to extrude and extrude, which plays a certain buffering operation and has a protective extrusion effect.

[0026] By setting the rotation of the rotating shaft 19 on the sleeve rod 18 to adjust the rotation of the snap arm 20, it extends into the interior of the snap groove 15. At this time, through the alignment of the first locking hole 16 and the second locking hole 21, the locker 17 is installed in the second locking hole 21 and the first locking hole 16 to lock, and the mold plate body 6 is fixed and limited in the horizontal direction again, which further improves the stability of the placement of the mold plate body 6 and improves the accuracy of injection molding of the device.

Claims

1. A casting mold for manufacturing a high-speed train gearbox, comprising a mold casting chassis (1), wherein a mold plate placement groove (2) is provided on the top surface of the mold casting chassis (1), and the characteristics are: An extrusion adjustment screw (3) is movably mounted on the top of one side of the inner side of the mold plate placement groove (2); an adjustment dial (4) is fixedly connected to the top of one side of the extrusion adjustment screw (3); an extrusion limit plate (5) is rotatably connected to the top of the side of the extrusion adjustment screw (3) away from the adjustment dial (4); a mold plate body (6) is placed on one side of the extrusion limit plate (5); a top pressing mold plate (7) is detachably mounted on the top of the mold casting chassis (1); a limiting latch groove (8) is provided on the bottom surface of one side of the top pressing mold plate (7); a buffer extrusion spring (9) is fixedly connected to the inside of the limiting latch groove (8); and a limiting latch rod (10) is fixedly connected to the top of one side of the mold casting chassis (1).

2. A casting mold for manufacturing a high-speed train gearbox according to claim 1, characterized in that: The extrusion limiting plate (5) is located inside the mold plate placement groove (2), and the connection relationship between the extrusion limiting plate (5) and the mold plate body (6) is a contact extrusion fixed connection, and the extrusion limiting plates (5) are symmetrically distributed on both sides of the mold plate body (6).

3. The casting mold for manufacturing a high-speed train gearbox according to claim 1, characterized in that: The positions of the limit latch rod (10) and the limit latch groove (8) correspond one to one, the connection relationship between the limit latch groove (8) and the limit latch rod (10) is a latch connection, a buffer extrusion spring (9) is arranged inside the limit latch rod (10), and the connection relationship between the limit latch groove (8) and the buffer extrusion spring (9) is a contact extrusion connection.

4. The casting mold for manufacturing a high-speed train gearbox according to claim 1, characterized in that: A telescopic connecting column (11) is fixedly connected to the top of one side of the top pressing mold plate (7), and a shrinkable connecting rod (12) is shrinkably connected to the top of one side of the telescopic connecting column (11). A mold injection groove (13) is provided on the top surface of the mold plate body (6). A buckle block (14) is fixedly installed on the top of one side of the mold plate body (6), and a buckle groove (15) is provided inside the buckle block (14). A first locking hole (16) is provided on one side of the buckle block (14), and a locker (17) is threadedly connected to the inside of the first locking hole (16).

5. A casting mold for manufacturing a high-speed train gearbox according to claim 4, characterized in that: A sleeve rod (18) is fixedly connected to the top end of one side of the mold casting chassis (1) close to the buckle block (14); a rotating shaft (19) is movably sleeved on the surface of one side of the sleeve rod (18); a buckle arm (20) is fixedly connected to the top end of one side of the rotating shaft (19); a second locking hole (21) is formed on the surface of one side of the buckle arm (20); and a top limit plate (22) is fixedly connected to the top end of one side of the sleeve rod (18).

6. A casting mold for manufacturing a high-speed train gearbox according to claim 5, characterized in that: The connection relationship between the snap arm (20) and the snap groove (15) is a movable snap connection, the positions of the first locking hole (16) and the second locking hole (21) correspond one to one, and the connection relationship between the locker (17) and the second locking hole (21) is a threaded connection.

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