Automobile planet carrier casting mold

Abstract

The application discloses an automobile planet carrier casting mold and belongs to the technical field of automobile planet carrier casting molds. The automobile planet carrier casting mold mainly comprises an upper mold, a metal liquid pouring ladle is arranged at the top end of the upper mold, a plurality of liquid feeding pipes are fixedly connected to the bottom end of the metal liquid pouring ladle at equal intervals, a positioning ring is fixedly connected in the metal liquid pouring ladle, and a high-temperature-resistant filter screen is clamped on the positioning ring. The metal liquid pouring ladle, the high-temperature-resistant filter screen and the plurality of liquid feeding pipes are arranged. When casting, the casting liquid is poured into the metal liquid pouring ladle. When the liquid flows and contacts the high-temperature-resistant filter screen, the high-temperature-resistant filter screen filters the particles in the liquid. The filtered liquid flows into the casting groove through the plurality of liquid feeding pipes uniformly, which is favorable for improving the uniformity of the casting liquid into the mold, preventing the dead angle of the mold from being not cast and affecting the casting effect, filtering the particles and impurities in the casting liquid and improving the casting effect.

Description

Technical Field

[0001] This application relates to the field of automotive planetary carrier casting mold technology, specifically an automotive planetary carrier casting mold. Background Technology

[0002] The planetary carrier is one of the main components of a planetary gear transmission device. The planetary gear shafts or bearings are mounted on the planetary carrier. When the planetary gears are the basic components, it is the part that bears the largest external torque in the mechanism. The structure of the planetary carrier mainly consists of an upper plate, a lower plate, and connecting ribs connecting the upper and lower plates. The upper and lower plates are provided with planetary shaft holes at positions staggered from the connecting ribs. The center of both the upper and lower plates is provided with a central shaft hole. The planetary carrier is mainly formed by casting, and the quality requirements for the planetary carrier are high during the casting process.

[0003] Most existing automotive planetary carrier casting molds only have one casting liquid inlet. When the liquid is poured into the mold, it mostly diffuses and flows from one direction to other directions. With this casting method, when casting automotive planetary carriers with toothed grooves, it is easy for the liquid to not be poured into the dead corners of the toothed grooves, thus affecting the casting effect of the automotive planetary carrier. Moreover, most existing automotive planetary carrier casting molds do not have a filter structure at the casting liquid inlet. If the liquid contains particulate impurities during the casting process, it can easily affect the forming effect of the planetary carrier.

[0004] Therefore, it is necessary to provide an automotive planetary carrier casting mold to solve the above problems.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content

[0006] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is: to provide an automotive planetary carrier casting mold, which, through the setting of a molten metal casting hopper, a high-temperature resistant filter screen, and multiple liquid delivery pipes, allows the casting liquid to be poured into the molten metal casting hopper during casting. When the liquid flows and comes into contact with the high-temperature resistant filter screen, the high-temperature resistant filter screen filters out particulate matter in the liquid. The filtered liquid passes through the high-temperature resistant filter screen and falls to the bottom of the inner side of the molten metal casting hopper. Through multiple liquid delivery pipes fixedly connected to the bottom of the molten metal casting hopper, it flows evenly into the second casting groove opened at the bottom of the mold, and then flows through the second casting groove into the first casting groove that is snapped at the bottom. The multiple casting inlets help to improve the uniformity of the casting liquid entering the mold, prevent dead corners in the mold from being filled, which would affect the casting effect, and facilitate the filtration of particulate impurities in the casting liquid, which helps to improve the casting effect.

[0007] The technical solution adopted by this application to solve its technical problem is: an automotive planetary carrier casting mold, including an upper mold, a molten metal casting hopper installed at the top of the upper mold, a plurality of liquid delivery pipes fixedly connected at equal intervals at the bottom of the molten metal casting hopper, a positioning ring fixedly connected inside the molten metal casting hopper, and a high-temperature resistant filter screen clamped on the positioning ring.

[0008] Furthermore, a sealing plate is installed at the top of the upper mold by a nut, the molten metal casting hopper is connected through the sealing plate, a second casting groove is opened at the bottom of the upper mold, and the liquid delivery pipe is connected through the second casting groove.

[0009] Furthermore, the bottom end of the upper mold is engaged with the lower mold, and a set of guide grooves are symmetrically opened on the lower mold. A sliding plate is slidably connected in each of the guide grooves. A hydraulic rod is fixedly connected to the end of the sliding plate facing the upper mold, and a pusher tooth ring is fixedly connected to the end of the sliding plate that passes through the guide groove.

[0010] Furthermore, the pusher tooth ring is provided with a mold tooth column, and the top of the lower mold is provided with a first casting groove, and the pusher tooth ring is located between the first casting groove and the mold tooth column.

[0011] Furthermore, the bottom end of the mold tooth column is fixedly connected to the lower mold, and the interior of the mold tooth column has a cavity structure for injecting cooling gas.

[0012] Furthermore, the pusher tooth ring is magnetically connected to the bottom end of the mold tooth column and the first casting groove, and the pusher tooth ring is slidably connected to the mold tooth column and the first casting groove.

[0013] Furthermore, a cooling chamber is provided between the second casting groove and the lower mold for injecting cooling gas.

[0014] The beneficial effects of this application are: the multiple casting inlets help improve the uniformity of the casting liquid entering the mold, prevent dead corners of the mold from being filled and affecting the casting effect, and facilitate rapid and stable demolding of the cast automotive planetary carrier.

[0015] This application provides an automotive planetary carrier casting mold. Through a molten metal casting hopper, a high-temperature resistant filter, and multiple delivery pipes, the molten metal is poured into the hopper during casting. As the liquid flows and contacts the high-temperature resistant filter, particulate matter in the liquid is filtered out. The filtered liquid passes through the filter and falls to the bottom of the molten metal casting hopper. Multiple delivery pipes fixed to the bottom of the hopper then evenly flow upwards into a second casting groove at the bottom of the mold, and finally into a first casting groove at the bottom. The multiple casting inlets improve the uniformity of the molten metal entering the mold, prevent dead zones from affecting the casting effect, and facilitate the filtration of particulate impurities in the molten metal, thus improving the casting effect.

[0016] This application provides an automotive planetary carrier casting mold. Through the configuration of a hydraulic rod, a sliding plate, a guide groove, and a pusher ring, during demolding, the hydraulic rod contracts, causing the fixedly connected sliding plate to slide upwards along the guide groove. This causes the pusher ring, fixedly connected to one end of the sliding plate, to move upwards along the gap between the mold tooth column and the first casting groove, thereby pushing the cast automotive planetary carrier in the first casting groove upwards and separating it from the lower mold. This facilitates rapid and stable demolding of the cast automotive planetary carrier.

[0017] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure;

[0020] Figure 2 This is a schematic diagram of the overall cross-sectional three-dimensional structure;

[0021] Figure 3 for Figure 2 Enlarged structural diagram of section A in the middle;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the lower mold;

[0023] Figure 5 This is a three-dimensional structural diagram of the upper mold;

[0024] Figure 6 A three-dimensional structural diagram showing the connection between the pusher tooth ring and the hydraulic rod;

[0025] Figure 7 A three-dimensional structural diagram showing the connection between the molten metal casting hopper and the delivery pipe.

[0026] The following are the labeling elements in the figure:

[0027] 1. Lower mold; 2. Upper mold; 3. Sealing plate; 4. Molten metal casting hopper; 5. Guide groove; 6. Slide plate; 7. Pusher tooth ring; 8. Hydraulic rod; 9. Fixing block; 10. Mold tooth column; 11. First casting trough; 12. Second casting trough; 13. Liquid delivery pipe; 14. Positioning ring; 15. High temperature resistant filter screen. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 7 As shown, this application provides an automotive planetary carrier casting mold, including an upper mold 2. A molten metal casting hopper 4 is installed at the top of the upper mold 2. A plurality of liquid delivery pipes 13 are fixedly connected at equal intervals to the bottom of the molten metal casting hopper 4. A positioning ring 14 is fixedly connected inside the molten metal casting hopper 4. A high-temperature resistant filter screen 15 is clamped on the positioning ring 14. A sealing plate 3 is installed at the top of the upper mold 2 by a nut. The molten metal casting hopper 4 is connected to the sealing plate 3 through the hopper. A second casting groove 12 is opened at the bottom of the upper mold 2. The liquid delivery pipes 13 are connected to the second casting groove 12 through the groove.

[0031] In this embodiment, during casting, the casting liquid is poured into the molten metal casting hopper 4. When the liquid flows and comes into contact with the high-temperature resistant filter screen 15, the high-temperature resistant filter screen 15 filters the particulate matter in the liquid. The filtered liquid will pass through the high-temperature resistant filter screen 15 and fall to the bottom of the inner side of the molten metal casting hopper 4. It will then flow evenly upwards into the second casting groove 12 opened at the bottom of the mold 2 through multiple liquid delivery pipes 13 fixedly connected to the bottom of the molten metal casting hopper 4. It will then flow into the first casting groove 11 that is snapped at the bottom through the second casting groove 12. Simultaneous casting in multiple directions helps to improve the casting efficiency and improves the uniformity of the casting liquid entering the mold, preventing dead corners of the mold from being filled and affecting the casting effect.

[0032] It should be noted that the sealing plate 3 is composed of two plates, and the molten metal casting hopper 4 is connected to the middle of the assembly position of the assembled sealing plate 3.

[0033] like Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the bottom end of the upper mold 2 is engaged with the lower mold 1. A set of guide grooves 5 are symmetrically opened on the lower mold 1. A sliding plate 6 is slidably connected in each of the guide grooves 5. A hydraulic rod 8 is fixedly connected to the end of the sliding plate 6 facing the upper mold 2. A pusher tooth ring 7 is fixedly connected to the end of the sliding plate 6 that passes through the guide groove 5. A mold tooth post 10 is provided in the pusher tooth ring 7. A first casting groove 11 is opened at the top of the lower mold 1. The pusher tooth ring 7 is located between the first casting groove 11 and the mold tooth post 10. The pusher tooth ring 7 is magnetically connected to the bottom end of the mold tooth post 10 and the first casting groove 11. The pusher tooth ring 7 is slidably connected to the mold tooth post 10 and the first casting groove 11. A set of fixing blocks 9 are symmetrically distributed on both the upper mold 2 and the lower mold 1 for installing the mold on designated auxiliary equipment.

[0034] In this embodiment, during demolding, the hydraulic rod 8 retracts and drives the fixedly connected slide plate 6 to slide upward along the guide groove 5, thereby driving the pusher tooth ring 7 fixedly connected to one end of the slide plate 6 to move upward along the gap cavity between the mold tooth post 10 and the first casting groove 11, thereby pushing the automotive planetary carrier cast in the first casting groove 11 to move upward and separate from the lower mold 1, which facilitates quick and stable demolding of the cast automotive planetary carrier.

[0035] During casting, when the casting liquid flows and falls to the bottom of the first casting trough 11, the bottom of the first casting trough 11 is sealed by the mutual magnetic attraction of the pusher tooth ring 7, the mold tooth column 10 and the first casting trough 11, preventing the liquid from seeping out of the first casting trough 11 and affecting the casting effect.

[0036] like Figure 1 , Figure 2 and Figure 4 As shown, the bottom end of the mold tooth column 10 is fixedly connected to the lower mold 1. The interior of the mold tooth column 10 is a cavity structure for injecting cooling gas. A cooling cavity is provided between the second casting groove 12 and the lower mold 1 for injecting cooling gas.

[0037] In this embodiment, when the molten metal is cast, cold air is circulated into the cooling chamber between the mold tooth column 10 and the second casting groove 12 and the lower mold 1 to accelerate the cooling and forming speed of the automotive planetary carrier.

[0038] Working principle:

[0039] The upper mold 2 is snapped onto the lower mold 1 and secured with nuts. The molten metal is poured into the molten metal casting hopper 4. As the liquid flows and comes into contact with the high-temperature resistant filter screen 15, the screen filters out particulate matter. The filtered liquid passes through the screen and falls to the bottom of the inner side of the molten metal casting hopper 4. It then flows evenly into the second casting groove 12 at the bottom of the upper mold 2 through multiple delivery pipes 13 fixedly connected to the bottom of the molten metal casting hopper 4. When the casting liquid flows into the first casting trough 11 at the bottom, the bottom of the first casting trough 11 is sealed by the mutual magnetic pusher ring 7, mold tooth column 10 and the first casting trough 11, preventing the liquid from seeping out of the first casting trough 11 and affecting the casting effect. When the molten metal is cast, cold air is circulated into the cavity structure inside the mold tooth column 10 and the cooling chamber between the second casting trough 12 and the lower mold 1 to accelerate the cooling and forming speed of the automotive planetary carrier.

[0040] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A casting mold for an automotive planetary carrier, comprising an upper mold (2), characterized in that: The top of the upper mold (2) is equipped with a molten metal casting hopper (4), and multiple liquid delivery pipes (13) are fixedly connected at equal intervals at the bottom of the molten metal casting hopper (4). A positioning ring (14) is fixedly connected inside the molten metal casting hopper (4), and a high-temperature resistant filter screen (15) is clamped on the positioning ring (14).

2. The automotive planetary carrier casting mold according to claim 1, characterized in that: The top of the upper mold (2) is fitted with a sealing plate (3) by a nut, and the molten metal casting hopper (4) is connected to the sealing plate (3) through it.

3. The automotive planetary carrier casting mold according to claim 1, characterized in that: The bottom end of the upper mold (2) is engaged with the lower mold (1). A set of guide grooves (5) are symmetrically opened on the lower mold (1). A sliding plate (6) is slidably connected in each of the guide grooves (5). A hydraulic rod (8) is fixedly connected to one end of the sliding plate (6) facing the upper mold (2). A pusher tooth ring (7) is fixedly connected to one end of the sliding plate (6) that passes through the guide groove (5).

4. The automotive planetary carrier casting mold according to claim 3, characterized in that: The pusher tooth ring (7) is provided with a mold tooth column (10), and the top of the lower mold (1) is provided with a first casting groove (11). The pusher tooth ring (7) is located between the first casting groove (11) and the mold tooth column (10).

5. The automotive planetary carrier casting mold according to claim 4, characterized in that: The bottom end of the mold tooth column (10) is fixedly connected to the lower mold (1), and the interior of the mold tooth column (10) is a cavity structure for injecting cooling gas.

6. The automotive planetary carrier casting mold according to claim 3, characterized in that: The pusher tooth ring (7) is magnetically connected to the bottom end of the mold tooth column (10) and the first casting groove (11), and the pusher tooth ring (7) is slidably connected to the mold tooth column (10) and the first casting groove (11).

7. The automotive planetary carrier casting mold according to claim 1, characterized in that: The bottom end of the upper mold (2) is provided with a second casting groove (12), the liquid delivery pipe (13) is connected through the second casting groove (12), and a cooling chamber is provided between the second casting groove (12) and the lower mold (1) for injecting cooling gas.

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