Gearbox shell mold

Abstract

The utility model discloses a gearbox shell mould, which relates to the technical field of gearbox processing and comprises an upper mould and a lower mould, and a plurality of cavities are formed between the upper mould and the lower mould. A pouring pipe penetrating through the upper mold is arranged on the upper mold, a plurality of Y-shaped pouring gates are arranged on the lower mold, each Y-shaped pouring gate comprises a main pouring gate and two branch pouring gates, one end of the main pouring gate is communicated with an outlet in the bottom end of the pouring pipe, one ends of the two branch pouring gates are communicated with the main pouring gate, and the two branch pouring gates are both communicated with different mold cavities; according to the utility model, the eight cavities and the four Y-shaped pouring gates are uniformly arranged around the pouring pipe, so that during use, materials are supplied to the four Y-shaped pouring gates through the pouring pipe, are shunted through the four Y-shaped pouring gates and are filled into the corresponding cavities, the lengths of the pouring gates from the pouring ports on the pouring pipe to the multiple cavities are ensured to be the same, the filling speeds of all the cavities are consistent, and the filling efficiency is improved. Therefore, the consistency of the quality of products in the same batch is improved, and the operation of workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of gear box processing, in particular to a gear box housing mould. Background Art

[0002] In applications where high strength is required for static or dynamic loads, gearbox housings are often constructed from a main housing that is cast in mold. The housing encloses the gears located inside the housing, providing structural strength to withstand tensile and compressive loads and preventing unwanted material from coming into contact with the gears.

[0003] In order to improve the production efficiency of the gearbox housing, the mold will include multiple cavities, and the housing can be formed in multiple cavities at one time through the casting port of the mold. In the prior art, the multiple cavities of the mold are generally arranged in parallel, resulting in different runner lengths from the casting port to the multiple cavities, which will cause each product to be filled at a different speed, resulting in different quality of products in the same batch.

[0004] In view of this, a gear box housing mold is urgently needed to solve the above problems. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model solves the problems with the following technical structure.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A gearbox housing mold, comprising: an upper mold and a lower mold, wherein a plurality of cavities are formed between the upper mold and the lower mold;

[0008] The upper mold is provided with a casting tube that passes through the upper mold, and the lower mold is provided with a plurality of Y-shaped runners, the Y-shaped runners include a main runner and two branch runners, one end of the main runner is connected to the bottom outlet of the casting tube, one end of the two branch runners is connected to one end of the main runner away from the casting tube, and one end of the two branch runners away from the branch runner are both connected to different cavities.

[0009] Its further characteristic is

[0010] The lower mold is provided with a conical diverter rod coaxial with the casting tube. The inner cavity of the casting tube is a conical cavity. The outer annular surface of the conical diverter rod and the inner cavity of the casting tube form an annular casting flow channel. The multiple main runners are connected to the bottom end of the annular casting flow channel.

[0011] The pouring pipe is provided with a trumpet-shaped feeding port at the top of the conical cavity.

[0012] The top annular surface of the pouring pipe is provided with an anti-stuck opening.

[0013] The number of the cavities is eight.

[0014] The eight cavities are grouped in pairs to form a cavity module, and the four cavity modules are evenly distributed in a circle with the casting pipe as the center.

[0015] One of the Y-shaped runners is connected to two adjacent cavities in two adjacent cavity mold sets.

[0016] There are four Y-shaped runners, and the four Y-shaped runners are evenly distributed in a circle with the casting pipe as the center.

[0017] The openings at both ends of the main pouring channel are in a trumpet shape.

[0018] The end of the branch runner away from the main runner is in a trumpet shape.

[0019] The above structure of the utility model can achieve the following beneficial effects:

[0020] Eight cavities and four Y-shaped runners are evenly arranged around the pouring pipe. When in use, materials are fed to the four Y-shaped runners through the pouring pipe, and finally divided through the four Y-shaped runners to fill the corresponding cavities with materials, ensuring that the pouring port on the pouring pipe reaches the runner length of multiple cavities at the same time, making the filling speed of each cavity consistent, thereby improving the consistency of product quality in the same batch and facilitating operation for staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of this embodiment;

[0022] Figure 2 This is a schematic diagram of the structure of the lower mold in this embodiment;

[0023] Figure 3 This is a top view of the structure of the lower mold in this embodiment;

[0024] Figure 4 It is a structural cross-sectional view of this embodiment.

[0025] In the figure: 1. upper mold; 2. lower mold; 3. cavity; 4. pouring pipe; 41. feed port; 42. anti-fouling port; 5. main runner; 6. branch runner; 7. conical diverter rod; 8. positioning block. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0027] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, apparatus, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0028] The following is combined with Figure 1-4 This application is described in further detail.

[0029] like Figure 1-2 As shown, a gearbox housing mold comprises: an upper mold 1 and a lower mold 2, wherein a plurality of cavities 3 are formed between the upper mold 1 and the lower mold 2;

[0030] The upper mold 1 is provided with a casting tube 4 which passes through the upper mold 1, and the lower mold 2 is provided with a plurality of Y-shaped runners, the Y-shaped runners including a main runner 5 and two branch runners 6, one end of the main runner 5 is connected to the bottom outlet of the casting tube 4, one end of the two branch runners 6 is connected to one end of the main runner 5 away from the casting tube 4, and one end of the two branch runners 6 away from the branch runner 6 are both connected to different cavities 3.

[0031] Based on the above structure, multiple main runners 5 are arranged to be connected with the pouring tube 4, and the cavity 3 is connected with the main runner 5 through the branch runner 6, so that the pouring port on the pouring tube 4 reaches the runner lengths of multiple cavities 3. The filling speed of each cavity is consistent, thereby improving the consistency of the quality of the same batch of products and facilitating the operation of the staff.

[0032] Among them, Figure 3 and 4 As shown, a conical diverter rod 7 coaxial with the casting tube 4 is provided on the lower mold 2, the inner cavity of the casting tube 4 is a conical cavity, the outer annular surface of the conical diverter rod 7 and the inner cavity of the casting tube 4 form an annular casting flow channel, and multiple main runners 5 are connected to the bottom end of the annular casting flow channel.

[0033] In actual use, the conical diverter rod 7 and the pouring pipe 4 form an annular pouring channel, which can achieve a diverting effect during pouring, so that the fluid flows evenly to multiple main pouring channels 5, further ensuring the speed consistency of each cavity filling.

[0034] Among them, Figure 3 and 4 As shown, the pouring pipe 4 is provided with a trumpet-shaped feed port 41 at the top of the conical cavity.

[0035] In actual use, the trumpet-shaped feed port 41 is provided to facilitate the entry of materials into the casting pipe 4 .

[0036] Among them, Figure 3 and 4 As shown, the top annular surface of the pouring pipe 4 is provided with an anti-fouling opening 42.

[0037] In actual use, by providing the foolproof opening 42 (a flat notch is provided on the top annular surface of the pouring pipe 4), it is convenient to check the position during operation, thereby improving the work efficiency of the staff.

[0038] Among them, Figure 2 and 3 As shown, there are eight cavities 3, and the eight cavities 3 are grouped into a cavity module in pairs, and the four cavity modules are evenly distributed around the circumference with the casting tube 4 as the center. A Y-shaped runner is connected to two adjacent cavities 3 in two adjacent cavity modules. There are four Y-shaped runners, and the four Y-shaped runners are evenly distributed around the circumference with the casting tube 4 as the center.

[0039] During actual use, different numbers of cavity molds can be set according to actual needs, and multiple Y-shaped runners can be set accordingly. In this embodiment, eight cavities 3 are set, and four Y-shaped runners are used to fill and feed the eight cavities 3 respectively, and the eight cavities 3 and the four Y-shaped runners are evenly distributed around the casting tube 4, so as to further make the filling speed of each cavity 3 consistent.

[0040] Among them, Figure 2 and 3 As shown, both ends of the main runner 5 are opened in a trumpet shape, and the end of the branch runner 6 away from the main runner 5 is also in a trumpet shape.

[0041] In actual use, through the above arrangement, the fluid can flow to the cavity 3 more smoothly during casting.

[0042] Further optimization is that Figure 2 and 3As shown, in order to improve the processing efficiency, a plurality of positioning blocks 8 are provided on the lower mold 2, and a plurality of positioning grooves respectively adapted to the plurality of positioning blocks 8 are opened on the upper mold 1. During processing, the positioning blocks 8 are aligned with the corresponding positioning grooves to complete the precise alignment of the upper mold 2 and the lower mold 1.

[0043] In summary, by evenly arranging eight cavities 3 and four Y-shaped runners around the pouring tube 4, when in use, the material is fed to the four Y-shaped runners through the pouring tube 4, and finally diverted through the four Y-shaped runners to fill the corresponding cavities 3 with material, ensuring that the pouring port on the pouring tube 4 reaches the same runner length of multiple cavities 3, making the filling speed of each cavity consistent, thereby improving the consistency of the quality of the same batch of products, and also facilitating the operation of the staff.

[0044] The above are only preferred embodiments of the present application, and the present invention is not limited to the above embodiments. It is understood that other improvements and changes directly derived or associated by those skilled in the art without departing from the spirit and concept of the present invention should be considered to be included in the protection scope of the present invention.

Claims

1. A gear box housing mold, characterized in that: include: An upper mold (1) and a lower mold (2), wherein a plurality of cavities (3) are formed between the upper mold (1) and the lower mold (2); The upper mold (1) is provided with a pouring pipe (4) penetrating the upper mold (1), and the lower mold (2) is provided with a plurality of Y-shaped runners, the Y-shaped runners comprising a main runner (5) and two branch runners (6), one end of the main runner (5) is connected to the bottom outlet of the pouring pipe (4), one end of the two branch runners (6) is connected to one end of the main runner (5) away from the pouring pipe (4), and one end of the two branch runners (6) away from the branch runner (6) is connected to different cavities (3).

2. The gear box housing mold according to claim 1, characterized in that: The lower mold (2) is provided with a conical diverter rod (7) coaxial with the casting tube (4); the inner cavity of the casting tube (4) is a conical cavity; the outer annular surface of the conical diverter rod (7) and the inner cavity of the casting tube (4) form an annular casting flow channel; and the plurality of main runners (5) are all connected to the bottom end of the annular casting flow channel.

3. The gear box housing mold according to claim 2, characterized in that: The pouring pipe (4) is provided with a trumpet-shaped feed port (41) at the top of the conical cavity.

4. The gear box housing mold according to claim 1, characterized in that: The top annular surface of the pouring pipe (4) is provided with an anti-stuck opening (42).

5. The gear box housing mold according to claim 1, characterized in that: The mold cavities (3) are provided with eight.

6. The gear box housing mold according to claim 5, characterized in that: The eight cavities (3) are grouped in pairs to form a cavity module, and the four cavity modules are evenly distributed in a circle with the casting pipe (4) as the center.

7. The gear box housing mold according to claim 6, characterized in that: One of the Y-shaped runners is connected to two adjacent cavities (3) in two adjacent cavity mold sets.

8. The gear box housing mold according to claim 5, characterized in that: Four Y-shaped runners are provided, and the four Y-shaped runners are evenly distributed in a circle with the casting pipe (4) as the center.

9. The gear box housing mold according to claim 1, characterized in that: The main pouring channel (5) has two openings at both ends in a trumpet shape.

10. The gear box housing mold according to claim 1, characterized in that: The end of the branch runner (6) away from the main runner (5) is in a trumpet shape.

Images