Casting sand core for automobile differential shell

Abstract

The utility model discloses a casting sand core of an automobile differential shell, which belongs to the technical field of automobile differentials and comprises a first sand core and a second sand core, a first casting shell and a second casting shell are arranged on the outer side of the first sand core, and a third casting shell and a fourth casting shell are arranged on the outer side of the second sand core. A first connecting block is arranged on the right side of the first sand core, a second connecting block is arranged on the left side of the second sand core, the first sand core and the second sand core can be conveniently assembled and disassembled by taking out the first connecting block and the second connecting block, and convenience is brought to subsequent operation; through arrangement of clamping blocks, clamping grooves and limiting blocks, the stability of the first sand core and the second sand core after connection is further improved through the limiting grooves, the clamping blocks on the two sides are pressed down, springs stretch out and draw back and enter grooves from the clamping grooves, the clamping blocks are separated from the clamping grooves, the limiting blocks are separated from the limiting grooves, and then first connecting blocks and second connecting blocks are separated; therefore, convenience is brought to the splitting work of the first sand core and the second sand core.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile differentials, and in particular relates to a casting sand core for an automobile differential housing. Background Art

[0002] A car's differential is a key mechanical device whose main function is to distribute the engine's power between the car's drive wheels and allow them to rotate at different speeds.

[0003] The differential primarily consists of left and right axle gears, two planetary gears, and a gear carrier. When the car is turning or driving on uneven surfaces, the differential allows the left and right wheels to roll at different speeds, ensuring pure rolling motion for the driven wheels on both sides. This design helps improve the car's handling and stability and reduces friction between the tires and the road.

[0004] At present, the existing automobile differential housing casting sand core still has some defects when used. It is often inconvenient to assemble and disassemble the two housings, which brings inconvenience to subsequent operations. For this reason, we propose a automobile differential housing casting sand core. Utility Model Content

[0005] The purpose of the utility model is to provide a casting sand core for an automobile differential housing, so as to solve the problem in the above background technology that it is often inconvenient to assemble and disassemble two housings, which brings inconvenience to subsequent operations.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a casting sand core for an automobile differential case, comprising a first sand core and a second sand core, wherein a first casting shell and a second casting shell are provided on the outside of the first sand core, and the first casting shell and the second casting shell are clamped to the outside of the first sand core, and a third casting shell and a fourth casting shell are provided on the outside of the second sand core, and the third casting shell and the fourth casting shell are clamped to the outside of the second sand core, a first connecting block is provided on the right side of the first sand core, and a second connecting block is provided on the left side of the second sand core, and the first connecting block is clamped to the inside of the second connecting block.

[0007] Preferably, a hinge is provided on the upper left side of each of the first casting shell and the third casting shell, and the hinge is fixedly connected to the upper left side of the first casting shell and the third casting shell respectively, and the other end of the hinge is fixedly connected to the lower left side of the second casting shell and the fourth casting shell respectively.

[0008] Preferably, the first connecting block is movably connected to a card block on both the front and rear sides, and the second connecting block is provided with a card slot on both the front and rear sides. The card slot extends into the interior of the second connecting block, and the card block is adapted to the card slot and is clamped inside the card slot.

[0009] Preferably, a groove is provided on both the front and rear sides of the first connecting block, a spring is provided inside the groove, one end of the spring is fixedly connected to the inside of the groove, and the other end of the spring is fixedly connected to one side of the block.

[0010] Preferably, a limiting block is provided on the left side of the clamping block, a limiting groove is provided on the left side of the clamping slot, and the limiting block is adapted to the limiting groove.

[0011] Preferably, the outer sides of the first casting shell, the second casting shell, the third casting shell and the fourth casting shell are all provided with anti-slip protrusions, and the number of the anti-slip protrusions is several.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The forged first casting shell, the second casting shell, the third casting shell and the fourth casting shell are respectively sleeved on the outside of the first sand core and the second sand core. After sleeved, the first connecting block is connected to the second connecting block. When disassembly is required, the first connecting block is taken out from the second connecting block, which is convenient for assembly and disassembly and brings convenience for subsequent operations.

[0014] 2. The stability of the first sand core and the second sand core after connection is further improved by setting the clamping block, clamping slot, limit block and limit slot. By pressing the clamping blocks on both sides, the spring expands and contracts, enters the groove from the clamping slot, separates the clamping block from the clamping slot, separates the limit block from the limit slot, and then separates the first connecting block from the second connecting block, thereby facilitating the separation of the first sand core and the second sand core. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the split structure of the first sand core, the second sand core and the casting shell of the utility model;

[0017] Figure 3 This is a schematic diagram of the block and groove structure of the utility model.

[0018] In the figure: 1. first sand core; 2. second sand core; 3. first casting shell; 4. second casting shell; 5. third casting shell; 6. fourth casting shell; 7. first connecting block; 8. second connecting block; 9. hinge; 10. clamping block; 11. clamping slot; 12. groove; 13. spring; 14. limit block; 15. limit slot. DETAILED DESCRIPTION

[0019] The following will be combined with the 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] See also Figure 1-3 The utility model provides a technical solution for casting sand cores for an automobile differential case: it includes a first sand core 1 and a second sand core 2, a first casting shell 3 and a second casting shell 4 are provided on the outside of the first sand core 1, the first casting shell 3 and the second casting shell 4 are clamped on the outside of the first sand core 1, a third casting shell 5 and a fourth casting shell 6 are provided on the outside of the second sand core 2, the third casting shell 5 and the fourth casting shell 6 are clamped on the outside of the second sand core 2, a first connecting block 7 is provided on the right side of the first sand core 1, a second connecting block 8 is provided on the left side of the second sand core 2, and the first connecting block 7 is clamped inside the second connecting block 8.

[0021] Specifically, a hinge piece 9 is provided on the upper left side of the first casting shell 3 and the third casting shell 5. The hinge piece 9 is fixedly connected to the upper left side of the first casting shell 3 and the third casting shell 5, and the other end of the hinge piece 9 is fixedly connected to the lower left side of the second casting shell 4 and the fourth casting shell 6.

[0022] Specifically, the first connecting block 7 is movably connected to a card block 10 on both the front and rear sides, and the second connecting block 8 is provided with a card slot 11 on both the front and rear sides. The card slot 11 extends into the interior of the second connecting block 8, and the card block 10 is adapted to the card slot 11, and the card block 10 is clamped inside the card slot 11.

[0023] Specifically, a groove 12 is provided on both the front and rear sides of the first connecting block 7 , and a spring 13 is provided inside the groove 12 . One end of the spring 13 is fixedly connected to the inside of the groove 12 , and the other end of the spring 13 is fixedly connected to one side of the block 10 .

[0024] Specifically, a limiting block 14 is provided on the left side of the clamping block 10 , and a limiting groove 15 is provided on the left side of the clamping slot 11 , and the limiting block 14 is adapted to the limiting groove 15 .

[0025] Specifically, the outer sides of the first casting shell 3 , the second casting shell 4 , the third casting shell 5 and the fourth casting shell 6 are all provided with anti-slip protrusions, and the number of the anti-slip protrusions is several.

[0026] In this embodiment, when the automobile differential case casting sand core is used, the forged first casting shell 3, the second casting shell 4, the third casting shell 5 and the fourth casting shell 6 are respectively sleeved on the outside of the first sand core 1 and the second sand core 2. After sleeved, the first connecting block 7 is connected to the second connecting block 8. When disassembly is required, the first connecting block 7 and the second connecting block 8 are taken out, which facilitates assembly and disassembly and brings convenience to subsequent operations.

[0027] The hinge piece 9 is provided to improve the flexibility of the first casting shell 3, the second casting shell 4, the third casting shell 5 and the fourth casting shell 6. The block 10, the slot 11, the limit block 14 and the limit groove 15 are provided to further improve the stability of the first sand core 1 and the second sand core 2 after connection. By pressing the blocks 10 on both sides, the spring 13 is extended and retracted, entering the groove 12 from the slot 11, separating the block 10 from the slot 11, separating the limit block 14 from the limit groove 15, and then separating the first connecting block 7 and the second connecting block 8, thereby facilitating the disassembly of the first sand core 1 and the second sand core 2.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations. The phrase "includes an element defined by..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand core for casting a differential case of an automobile, comprising a first sand core (1) and a second sand core (2), characterized in that: A first casting shell (3) and a second casting shell (4) are provided on the outside of the first sand core (1), and the first casting shell (3) and the second casting shell (4) are clamped on the outside of the first sand core (1); a third casting shell (5) and a fourth casting shell (6) are provided on the outside of the second sand core (2), and the third casting shell (5) and the fourth casting shell (6) are clamped on the outside of the second sand core (2); a first connecting block (7) is provided on the right side of the first sand core (1), and a second connecting block (8) is provided on the left side of the second sand core (2); and the first connecting block (7) is clamped inside the second connecting block (8).

2. The automobile differential case casting sand core according to claim 1, characterized in that: A hinge piece (9) is provided on the upper left side of each of the first casting shell (3) and the third casting shell (5); the hinge piece (9) is fixedly connected to the upper left side of each of the first casting shell (3) and the third casting shell (5); and the other end of the hinge piece (9) is fixedly connected to the lower left side of each of the second casting shell (4) and the fourth casting shell (6).

3. The automobile differential case casting sand core according to claim 1, characterized in that: The first connecting block (7) is movably connected to a clamping block (10) on both the front and rear sides, and the second connecting block (8) is provided with a clamping slot (11) on both the front and rear sides. The clamping slot (11) extends into the interior of the second connecting block (8), and the clamping block (10) is adapted to the clamping slot (11). The clamping block (10) is clamped into the interior of the clamping slot (11).

4. The automobile differential case casting sand core according to claim 3, characterized in that: A groove (12) is provided on both the front and rear sides of the first connecting block (7), a spring (13) is provided inside the groove (12), one end of the spring (13) is fixedly connected inside the groove (12), and the other end of the spring (13) is fixedly connected to one side of the clamping block (10).

5. The automobile differential case casting sand core according to claim 3, characterized in that: A limiting block (14) is provided on the left side of the clamping block (10), a limiting groove (15) is provided on the left side of the clamping slot (11), and the limiting block (14) is adapted to the limiting groove (15).

6. The automobile differential case casting sand core according to claim 1, characterized in that: The outer sides of the first casting shell (3), the second casting shell (4), the third casting shell (5) and the fourth casting shell (6) are all provided with anti-slip protrusions, and the number of the anti-slip protrusions is several.

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