Liquid injection port mounting structure for reduction gearbox casting sand box

Abstract

The utility model relates to the technical field of casting sand boxes, and discloses a liquid injection port mounting structure for a reduction gearbox casting sand box, which comprises a lower sand box, an upper sand box and a liquid injection pipe I. A positioning bolt I is arranged between the lower sand box and the upper sand box, and a mounting seat is fixedly mounted at the other end, far away from the lower sand box, of the upper sand box. A mounting groove, a sliding groove, a limiting groove and a first positioning hole are formed in the inner surface of the mounting base, a limiting rod is fixedly mounted on the outer surface of the first liquid injection pipe, and a second positioning hole is formed in the outer surface of the first liquid injection pipe. According to the liquid injection opening mounting structure for the reduction gearbox casting sand box, the limiting rod is matched with the mounting groove and the sliding groove and is connected with the limiting groove in a clamped mode, the guiding and preliminary positioning effects are achieved in the mounting process, and an operator can conveniently, rapidly and accurately mount a first liquid injection pipe on the mounting base; and meanwhile, the stability of the first liquid injection pipe after installation is further enhanced, the risk that the first liquid injection pipe is loosened due to improper installation is reduced, and the installation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to casting sand box technical field, concretely for a kind of injection port mounting structure for reduction gearbox casting sand box. BACKGROUND

[0002] In modern mechanical manufacturing field, as the core component in the transmission system of various mechanical equipment, the quality and performance of reduction gearbox play a decisive role in the stable operation of the whole equipment, and casting process is one of the key links in the production of reduction gearbox, and sand box is indispensable tooling in the casting process, and the advantages and disadvantages of its injection port mounting structure are directly related to the quality and production efficiency of reduction gearbox casting.

[0003] In most cases, although injection port can realize injection into the interior of sand box, it only digs a basic shape hole on sand box wall, then inserts an ordinary material metal or ceramic pipe by force, and handles with simple sealing means, common sealing materials such as clay, asbestos rope, etc., not only easily lead to leakage, but also only fixed by bolt, which easily leads to poor installation efficiency and is inconvenient for quick connection. SUMMARY

[0004] The utility model provides an injection port mounting structure for reduction gearbox casting sand box, which can effectively solve the problem of simple sealing means in the prior art, common sealing materials such as clay, asbestos rope, etc., not only easily lead to leakage, but also only fixed by bolt, which easily leads to poor installation efficiency and is inconvenient for quick connection.

[0005] The utility model adopts the technical scheme: an injection port mounting structure for reduction gearbox casting sand box, including lower sand box, upper sand box and injection pipe one, the lower sand box and upper sand box are provided with positioning bolt one, the other end of upper sand box away from lower sand box is fixedly installed with mounting seat, the inner surface of mounting seat is provided with installation slot, sliding slot, limit slot and positioning hole one, the outer surface of injection pipe one is fixedly installed with limiting rod, the outer surface of injection pipe one is provided with positioning hole two, the outer surface of injection pipe one is fixedly installed with injection pipe two communicated with injection pipe one.

[0006] Preferably, the positioning bolt one penetrates lower sand box and upper sand box and extends to its outer surface, the positioning bolt one is provided with same four, four positioning bolt one is located at the four corners of lower sand box and upper sand box.

[0007] Through the technical scheme, the four positioning pins located at the four corners can uniformly disperse the connecting force, ensure the stability and flatness of the connection between the lower sand box and the upper sand box, effectively prevent the misalignment or separation of the sand box in the subsequent operation process, provide a stable and reliable cavity basis for the casting process, and ensure the size precision and shape precision of the reduction gearbox casting.

[0008] Preferably, an outer surface of the liquid injection pipe one is provided with a positioning pin two, and the positioning pin two penetrates through the positioning hole one and the positioning hole two and extends to the outer surface thereof.

[0009] Through the technical scheme, the cooperation of the positioning pin two and the positioning hole one and the positioning hole two realizes the accurate positioning and firm fixing of the liquid injection pipe one on the mounting seat, prevents the displacement or shaking of the liquid injection pipe one due to the impact of the metal liquid or the vibration of the sand box during pouring, and ensures that the metal liquid can be accurately injected into the cavity through the liquid injection pipe one, thereby improving the stability and consistency of the casting quality.

[0010] Preferably, the limiting rod is matched with the mounting groove and the sliding groove, and the limiting rod is in clamping connection with the limiting groove.

[0011] Through the technical scheme, the matching design of the limiting rod with the mounting groove and the sliding groove and the clamping connection with the limiting groove play a role in guiding and preliminary positioning during installation, facilitate the operator to quickly and accurately install the liquid injection pipe one on the mounting seat, further enhance the stability of the liquid injection pipe one after installation, reduce the risk of loosening of the liquid injection pipe one due to improper installation, and improve the installation efficiency and quality.

[0012] Preferably, the liquid injection pipe one is provided with a sealing gasket one near the end of the mounting seat, and the sealing gasket one is in contact with the mounting seat.

[0013] Through the technical scheme, the sealing gasket one can effectively fill the small gap between the liquid injection pipe one and the mounting seat, prevent the metal liquid from leaking from the connection between the liquid injection pipe one and the mounting seat during pouring, improve the sealing performance of the liquid injection port mounting structure, reduce the waste of metal liquid and environmental pollution, and also avoid casting defects caused by leakage, thereby improving the casting quality.

[0014] Preferably, the liquid injection pipe two is fixedly provided with a connecting block and an electromagnetic valve one at one end, and the connecting block is provided with an internal thread near the end of the liquid injection pipe two.

[0015] Through the technical scheme, the internal thread design of the connecting block facilitates the quick connection and disassembly of the external liquid supply equipment, improves the universality and maintainability of the equipment, and the electromagnetic valve one can accurately control the inflow of the metal liquid, flexibly adjust the flow and speed of the metal liquid according to different stages of the pouring process, ensure that the cavity can be uniformly and stably filled, and improve the quality and yield of the casting.

[0016] Preferably, a connecting flange and a solenoid valve are fixedly installed at the other end of the injection pipe away from the connecting block, and a sealing gasket and a sealing gasket are provided on the outer surface of the connecting flange.

[0017] Through the above technical solutions, the connecting flange facilitates connection with other casting auxiliary equipment, expands the function and application scenarios of the injection pipe II, and the sealing gasket II and sealing gasket III can ensure the sealing performance at the connecting flange, prevent the metal liquid from leaking at the connection point, ensure the smooth progress of the casting process, and at the same time protect the connected auxiliary equipment from metal liquid corrosion and extend the service life of the equipment.

[0018] Compared with the prior art, this utility model provides a liquid injection port installation structure for a casting sand box for a gearbox, which has the following advantages:

[0019] 1. The liquid injection port installation structure for the casting sand box of the gearbox, with its matching design of the limiting rod and the mounting groove and sliding groove, as well as the snap-fit ​​connection with the limiting groove, plays a guiding and preliminary positioning role during the installation process. This makes it convenient for operators to quickly and accurately install the liquid injection pipe onto the mounting base, while further enhancing the stability of the liquid injection pipe after installation, reducing the risk of loosening of the liquid injection pipe due to improper installation, and improving installation efficiency and quality.

[0020] 2. The liquid injection port installation structure for the casting sand box of the gearbox features an internal thread design on the connecting block that facilitates quick connection and disassembly with external liquid supply equipment, improving the equipment's versatility and maintainability. The solenoid valve can precisely control the inflow of molten metal and flexibly adjust the flow rate and velocity of the molten metal according to different stages of the casting process, ensuring that the cavity can be filled evenly and stably, thereby improving the quality and yield of the castings.

[0021] 3. The injection port installation structure for the casting sand box of the gearbox features a connecting flange for easy connection with other casting auxiliary equipment, expanding the function and application scenarios of the injection pipe. Sealing gaskets two and three ensure a tight seal at the connecting flange, preventing molten metal leakage and ensuring a smooth casting process. They also protect the connected auxiliary equipment from molten metal corrosion, extending the equipment's service life. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the disassembled structure of the lower sand box and the upper sand box of this utility model;

[0025] Figure 4 This is a schematic diagram of the disassembled structure of the mounting base and injection tube of this utility model. Figure 1 ;

[0026] Figure 2 This is a schematic diagram of the disassembled structure of the mounting base and injection tube of this utility model. Figure 6 ;

[0027] Figure 1 This is a schematic diagram of the two-dimensional structure of the injection tube of this utility model. Figure 7 ;

[0028] Figure 2 This is a schematic diagram of the two-dimensional structure of the injection tube of this utility model. Figures 1-7 .

[0029] The components are as follows: 1. Lower sand box; 2. Upper sand box; 3. Positioning bolt one; 4. Mounting base; 5. Mounting groove; 6. Sliding groove; 7. Limiting groove; 8. Positioning hole one; 9. Injection pipe one; 10. Positioning bolt two; 11. Sealing gasket one; 12. Limiting rod; 13. Positioning hole two; 14. Injection pipe two; 15. Connecting block; 16. Internal thread; 17. Solenoid valve one; 18. Connecting flange; 19. Solenoid valve two; 20. Sealing gasket two; 21. Sealing gasket three. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1: As Figures 2-7 As shown, the present invention provides a liquid injection port installation structure for a casting sand box for a gearbox, including a lower sand box 1, an upper sand box 2, and a liquid injection pipe 9. A positioning bolt 3 is provided between the lower sand box 1 and the upper sand box 2. A mounting base 4 is fixedly installed at the other end of the upper sand box 2 away from the lower sand box 1. The inner surface of the mounting base 4 is provided with a mounting groove 5, a sliding groove 6, a limiting groove 7, and a positioning hole 8. A limiting rod 12 is fixedly installed on the outer surface of the liquid injection pipe 9. A positioning hole 13 is provided on the outer surface of the liquid injection pipe 9. A second liquid injection pipe 14 communicating with the liquid injection pipe 9 is fixedly installed on the outer surface of the liquid injection pipe 9.

[0032] Specifically, the positioning bolt one 3 penetrates the lower sand box 1 and the upper sand box 2 and extends to the outer surface thereof, and the positioning bolt one 3 is provided with four identical ones, which are located at the four corners of the lower sand box 1 and the upper sand box 2. The advantage is that the design of the four positioning bolts one 3 at the four corners can uniformly disperse the connecting force, ensure the stability and flatness of the connection of the lower sand box 1 and the upper sand box 2, effectively prevent the misalignment or separation of the sand box in the subsequent operation process, provide a stable and reliable cavity basis for the casting process, and ensure the dimensional accuracy and shape accuracy of the reduction gearbox casting.

[0033] Specifically, the outer surface of the liquid injection pipe one 9 is provided with a positioning bolt two 10, which penetrates the positioning hole one 8 and the positioning hole two 13 and extends to the outer surface thereof. The advantage is that the cooperation of the positioning bolt two 10 with the positioning hole one 8 and the positioning hole two 13 realizes the accurate positioning and firm fixing of the liquid injection pipe one 9 on the mounting seat 4, prevents the displacement or shaking of the liquid injection pipe one 9 due to the impact of the metal liquid or the vibration of the sand box during pouring, and ensures that the metal liquid can be accurately injected into the cavity through the liquid injection pipe one 9, thereby improving the stability and consistency of the casting quality.

[0034] Specifically, the limiting rod 12 is matched with the mounting groove 5 and the sliding groove 6, and the limiting rod 12 is connected with the limiting groove 7 in a clamping manner. The advantage is that the matching design of the limiting rod 12 with the mounting groove 5 and the sliding groove 6 and the clamping connection with the limiting groove 7 play a role in guiding and preliminary positioning during installation, which facilitates the operator to quickly and accurately install the liquid injection pipe one 9 on the mounting seat 4, further enhances the stability of the liquid injection pipe one 9 after installation, reduces the risk of loosening of the liquid injection pipe one 9 due to improper installation, and improves the installation efficiency and quality.

[0035] Embodiment two: as shown in ​ , which is an improvement on the previous embodiment.

[0036] Specifically, the liquid injection pipe one 9 is provided with a sealing gasket one 11 at one end close to the mounting seat 4, and the sealing gasket one 11 is in contact with the mounting seat 4. The advantage is that the sealing gasket one 11 can effectively fill the small gap between the liquid injection pipe one 9 and the mounting seat 4, prevent the metal liquid from leaking from the connection between the liquid injection pipe one 9 and the mounting seat 4 during pouring, improve the sealing performance of the liquid injection port mounting structure, reduce the waste of metal liquid and environmental pollution, and also avoid casting defects caused by leakage, thereby improving the casting quality.

[0037] Specifically, one end of the liquid injection pipe two 14 is fixedly installed with a connecting block 15 and a solenoid valve one 17, and the connecting block 15 is provided with an internal thread 16 close to the one end of the liquid injection pipe two 14. The advantage is that the internal thread 16 of the connecting block 15 is designed to facilitate quick connection and disassembly with external liquid supply equipment, improving the versatility and maintainability of the equipment. The solenoid valve one 17 can accurately control the inflow of the metal liquid, flexibly adjust the flow and speed of the metal liquid according to different stages of the pouring process, ensure that the cavity can be uniformly and stably filled, and improve the quality and yield of the castings.

[0038] Specifically, the other end of the liquid injection pipe two 14 away from the connecting block 15 is fixedly installed with a connecting flange 18 and a solenoid valve two 19, and the outer surface of the connecting flange 18 is provided with a sealing pad two 20 and a sealing pad three 21. The advantage is that the connecting flange 18 is convenient for connecting with other pouring auxiliary equipment, expanding the function and application scene of the liquid injection pipe two 14. The sealing pad two 20 and the sealing pad three 21 can ensure the sealing performance at the connecting flange 18, prevent the metal liquid from leaking at the connecting part, ensure the smooth progress of the pouring process, and also protect the connected auxiliary equipment from being eroded by the metal liquid, prolonging the service life of the equipment.

[0039] Working principle: in use, through four positioning pins one 3 located at the four corners of the lower sand box 1 and the upper sand box 2, penetrate both and fasten, evenly disperse the connecting force, guarantee the sand box connection stable and flat, build stable and reliable cavity foundation for subsequent casting process, so as to ensure that the reduction gearbox casting can obtain accurate size precision and shape precision, when installing the liquid injection pipe one 9, first, the limiting rod 12 of the liquid injection pipe one 9 is inserted into the installation groove 5 of the mounting seat 4 along the installation groove 5 and slides along the sliding groove 6, the guiding and preliminary positioning are realized by means of the adaptive design, when sliding to the limiting groove 7, clamping, completing the preliminary stable installation. Then, the positioning hole two 13 of the liquid injection pipe one 9 is aligned with the positioning hole one 8 of the mounting seat 4, the positioning pin two 10 penetrates both and is fixed, the accurate positioning and firm installation are realized, the metal liquid impact and sand box vibration are effectively resisted, the metal liquid is accurately injected into the cavity, the casting quality stability and consistency are improved. At the same time, the sealing gasket one 11 close to the mounting seat 4 end of the liquid injection pipe one 9 tightly abuts the mounting seat 4, fills the tiny gap, prevents the metal liquid from leaking, guarantees the sealing performance, reduces the waste and pollution, avoids the casting defects, improves the casting quality, the connecting block 15 at one end of the liquid injection pipe two 14 utilizes the internal thread 16 and the external liquid supply equipment to be quickly connected or disassembled, improves the equipment versatility and maintainability, the electromagnetic valve one 17 can accurately control the flow and flow rate of the metal liquid according to the different stage requirements of the pouring process, ensures the uniform and stable filling of the cavity, improves the casting quality and yield. The connecting flange 18 at the other end of the liquid injection pipe two 14 is convenient to connect with other pouring auxiliary equipment such as filter, flow monitoring device and the like, expands the functional application scene, the sealing gasket two 20 and the sealing gasket three 21 at the connecting flange 18 guarantee the sealing effect, prevent the metal liquid from leaking, guarantee the smooth pouring, protect the auxiliary equipment from the metal liquid erosion, prolong the service life of the equipment.

[0040] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pouring gate mounting structure for a reduction gear casting sand box, comprising a lower sand box (1), an upper sand box (2) and a pouring tube (9), characterized in that: The lower sand box (1) and upper sand box (2) are provided with positioning bolt (3), the other end of the upper sand box (2) away from the lower sand box (1) is fixedly installed with mounting seat (4), the inner surface of mounting seat (4) is provided with mounting groove (5), sliding groove (6), limiting groove (7) and positioning hole (8), the outer surface of injection pipe (9) is fixedly installed with limiting rod (12), the outer surface of injection pipe (9) is provided with positioning hole (13), the outer surface of injection pipe (9) is fixedly installed with injection pipe (14) communicated with injection pipe (9).

2. A sprue mount for a reduction gearbox casting flask as claimed in claim 1, wherein: The positioning bolt (3) penetrates the lower sand box (1) and upper sand box (2) and extends to the outer surface thereof, the positioning bolt (3) is provided with four same, four positioning bolt (3) is located at the four corners of the lower sand box (1) and upper sand box (2).

3. A sprue mount for a reduction gear casting box as claimed in claim 1, wherein: The outer surface of injection pipe (9) is provided with positioning bolt (10), the positioning bolt (10) penetrates positioning hole (8) and positioning hole (13) and extends to the outer surface thereof.

4. A sprue bushing mounting structure for a casting sand box of a reduction gear box according to claim 1, characterized in that: The limiting rod (12) is matched with mounting groove (5) and sliding groove (6), the limiting rod (12) is connected with limiting groove (7) by clamping.

5. A sprue mount for a reduction gear casting box according to claim 1, wherein: The outer surface of injection pipe (9) is provided with positioning bolt (10), the positioning bolt (10) penetrates positioning hole (8) and positioning hole (13) and extends to the outer surface thereof.

6. A sprue mount for a reduction gear casting box according to claim 1, characterized in that: The outer surface of injection pipe (9) is provided with positioning bolt (10), the positioning bolt (10) penetrates positioning hole (8) and positioning hole (13) and extends to the outer surface thereof.

7. A sprue mount for a reduction gear casting box according to claim 1, characterized in that: The outer surface of injection pipe (9) is provided with positioning bolt (10), the positioning bolt (10) penetrates positioning hole (8) and positioning hole (13) and extends to the outer surface thereof. The outer surface of injection pipe (9) is provided with positioning bolt (10), the positioning bolt (10) penetrates positioning hole (8) and positioning hole (13) and extends to the outer surface thereof.

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