Gear box gravity casting mold

Abstract

The utility model relates to the technical field of dies, in particular to a gearbox gravity casting die which comprises a plate seat, two sets of sliding grooves are formed in the surface of the top end of the plate seat, a sliding seat is installed in the sliding grooves in a sliding mode, and a base plate is integrally constructed on the surface of the top end of the sliding seat. A bottom die A and a bottom die B which are matched with each other are assembled on the surfaces of the top ends of the two base plates correspondingly, and a top die used for gearbox casting is connected between the bottom die A and the bottom die B in an inserted mode. When the casting mold is used for casting the gearbox, the bottom mold A and the bottom mold B can be matched with each other to form the bottom mold structure, the gearbox can be conveniently cast in cooperation with the upper top mold structure, meanwhile, when the bottom mold A and the bottom mold B are separated from each other, the base plates can be driven to move, and the base plates drive the sliding bases to slide in the sliding grooves in the tops of the plate bases; therefore, the bottom die A and the bottom die B can be stably separated from each other, and subsequent die assembly is also facilitated, so that the condition of dislocation during die assembly of the bottom die A and the bottom die B is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a gravity casting mold for a gearbox. Background Art

[0002] Gearboxes are widely used. For example, in the application of wind turbines, the gearbox is an important mechanical component widely used in wind turbines. Its main function is to transmit the power generated by the wind turbine under the action of wind to the generator and make it obtain the corresponding rotational speed; Patent No. CN202023225927.5 discloses a casting mold for a gearbox. The left mold, the right mold and the upper mold are combined to form a complete mold. In addition, an ejection mechanism can be used to eject the castings adhered to the template. If the castings adhere to the left mold and the right mold, the left mold and the right mold can be separated to facilitate the removal of the castings. The cooling mechanism is used to quickly cool the components in the mold to accelerate the formation of the castings; However, after the left mold and the right mold are separated from each other, a certain impact force will be generated during the mold closing. If misalignment occurs, the left mold and the right mold are likely to be directly rubbed and damaged during the mold closing. For this reason, we propose a gravity casting mold for a gearbox. Summary of the Utility Model

[0003] Aiming at the problems in the prior art, the utility model provides a gravity casting mold for a gearbox.

[0004] The technical solution adopted by the utility model to solve its technical problems is a gravity casting mold for a gearbox, which includes a plate base. A chute is provided on the top surface of the plate base, and there are two groups of chutes. A sliding seat is slidably installed in the chute, and a cushion plate is integrally formed on the top surface of the sliding seat. The bottom mold A and the bottom mold B that fit each other are respectively assembled on the top surfaces of the two cushion plates, and a top mold for casting the gearbox is inserted between the bottom mold A and the bottom mold B;

[0005] A disc seat is assembled on the inner wall surface of the chute. A horizontal shaft located in the chute is assembled between the two disc seats, and the horizontal shaft is inserted and connected with the sliding seat. A buffer spring is sleeved on the outer circumference of the horizontal shaft and is located outside the sliding seat. There are multiple groups of buffer springs. A retaining seat for limiting is assembled at one end of the horizontal shaft away from the disc seat. A sliding sleeve that is slidably connected with the horizontal shaft is assembled in the sliding seat.

[0006] By adopting the above technical solution, when casting the gearbox using the casting mold, the bottom mold A and the bottom mold B can be fitted to each other to form the bottom mold structure, and cooperate with the top mold structure to facilitate the casting of the gearbox. At the same time, when the bottom mold A and the bottom mold B are separated from each other, they can drive the backing plates to move respectively, and the backing plates drive the sliding seats to slide in the sliding grooves at the top of the plate seat, so that the bottom mold A and the bottom mold B can be stably separated from each other, and it is also convenient for subsequent mold closing, thereby reducing the situation of misalignment when the bottom mold A and the bottom mold B are closed.

[0007] When the bottom mold A and the bottom mold B are closed, the backing plate will drive the sliding seat to slide in the sliding groove on the surface of the plate seat. At the same time, the sliding sleeve inside the sliding seat can be inserted and slidably displaced with the cross shaft in the sliding groove, and the buffer springs on both sides of the cross shaft outside the sliding seat are convenient for providing elastic support for the sliding seat and buffering when the sliding seat slides, so as to facilitate buffering for the closing of the bottom mold A and the bottom mold B, enabling the two to perform the mold closing operation more stably and facilitating the stable casting of the gearbox.

[0008] Specifically, limit blocks for limiting are assembled at both open ends on the outer periphery of the plate seat.

[0009] By adopting the above technical solution, the limit blocks are convenient for sealing and protecting the open ends of the sliding grooves on the surface of the plate seat, thereby reducing the situation of the sliding seat and the sliding groove being separated from each other.

[0010] Specifically, a jack is opened at one end of the limit block close to the cross shaft, and a cross shaft inserted into the jack is integrally formed at one end of the cross shaft close to the limit block.

[0011] By adopting the above technical solution, the cross shaft on the outer periphery of the cross shaft is inserted and connected with the jack on the outside of the limit block, which is convenient for improving the stability of the operation of the cross shaft.

[0012] Specifically, grooves are opened on the top surface of the plate seat, and there are two groups of grooves. A convex strip that fits the groove is integrally formed on the bottom surface of the backing plate, and there are two groups of convex strips.

[0013] By adopting the above technical solution, the convex strip at the bottom of the backing plate fits and is slidably connected with the groove at the top of the plate seat, which is convenient for improving the stability of the sliding displacement of the backing plate.

[0014] Specifically, rubber pads are bonded to the opposite sides of the two backing plates, and rubber rings are bonded to the surfaces of both sides at the outer periphery of the sliding sleeve.

[0015] By adopting the above technical solution, the rubber pad has good elasticity, which is convenient for protection when the two backing plates are abutted against each other, and the rubber ring has good protection performance, which is convenient for protecting both ends of the sliding sleeve and protecting when both ends of the sliding sleeve collide.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. Through the design of the plate base, sliding groove, sliding seat, backing plate, bottom mold A, bottom mold B and top mold, when casting the gearbox using the casting mold, the bottom mold A and the bottom mold B can be mutually fitted to form the bottom mold structure, and cooperate with the top mold structure to facilitate the casting of the gearbox. At the same time, when the bottom mold A and the bottom mold B are separated from each other, they can respectively drive the backing plate to move, and the backing plate drives the sliding seat to slide and displace in the sliding groove at the top of the plate base, so that the bottom mold A and the bottom mold B can be stably separated from each other, and it is also convenient for subsequent mold closing, thereby reducing the situation of misalignment when the bottom mold A and the bottom mold B are closed.

[0018] 2. Through the design of the disc base, horizontal shaft, buffer spring, ring base and sliding sleeve, when the bottom mold A and the bottom mold B are closed, the backing plate will drive the sliding seat to slide and displace in the sliding groove on the surface of the plate base. At the same time, the sliding sleeve inside the sliding seat can be inserted and slide with the horizontal shaft in the sliding groove, and the buffer springs on both sides of the horizontal shaft outside the sliding seat are convenient for providing elastic support for the sliding seat and buffering when the sliding seat slides, so as to facilitate buffering for the mutual closing of the bottom mold A and the bottom mold B, enabling a more stable mold closing operation between the two and facilitating the stable casting of the gearbox. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further illustrates the utility model with reference to the drawings and embodiments.

[0020] Figure 1 Is an axonometric view of the utility model;

[0021] Figure 2 Is a schematic plan view of the inner structure of the plate base of the utility model;

[0022] Figure 3 Is a schematic connection structure view of the backing plate and the sliding seat of the utility model;

[0023] In the figure: 1. Plate base; 2. Sliding groove; 3. Sliding seat; 4. Backing plate; 5. Bottom mold A; 6. Bottom mold B; 7. Top mold; 8. Disc base; 9. Horizontal shaft; 10. Buffer spring; 11. Sliding sleeve; 12. Block; 13. Ring base; 14. Cross shaft; 15. Insertion hole; 16. Rubber ring; 17. Rubber pad; 18. Groove; 19. Rib. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the technical means, creative features, achieved purposes and effects realized by the utility model easy to understand, the utility model is further elaborated below in conjunction with specific embodiments.

[0025] Please refer to Figures 1-3, an embodiment of the present utility model provides a technical solution: a gravity casting mold for a gearbox, including a plate base 1. A chute 2 is provided on the top surface of the plate base 1, and there are two groups of chutes 2. A sliding seat 3 is slidably installed in the chute 2, and a backing plate 4 is integrally formed on the top surface of the sliding seat 3. A bottom mold A 5 and a bottom mold B 6 that fit each other are respectively assembled on the top surfaces of the two backing plates 4, and a top mold 7 for casting the gearbox is inserted between the bottom mold A 5 and the bottom mold B 6; A disc seat 8 is assembled on the inner wall surface of the chute 2, a horizontal shaft 9 located in the chute 2 is assembled between the two disc seats 8, and the horizontal shaft 9 is inserted and connected with the sliding seat 3. A buffer spring 10 is sleeved on the outer periphery of the horizontal shaft 9 and located outside the sliding seat 3, and there are multiple groups of buffer springs 10. One end of the horizontal shaft 9 away from the disc seat 8 is assembled with a retaining seat 13 for limiting, and a sliding sleeve 11 slidably connected with the horizontal shaft 9 is assembled in the sliding seat 3.

[0026] During use, when using the casting mold to cast the gearbox, the bottom mold A 5 and the bottom mold B 6 can be made to fit each other to form a bottom mold structure, and cooperate with the top mold 7 structure to facilitate the casting of the gearbox. At the same time, when the bottom mold A 5 and the bottom mold B 6 are separated from each other, they can respectively drive the backing plate 4 to move, and the backing plate 4 drives the sliding seat 3 to slide and displace in the chute 2 on the top of the plate base 1, so that the bottom mold A 5 and the bottom mold B 6 can be stably separated from each other, and it is also convenient for subsequent mold closing, thereby reducing the situation of misalignment when the bottom mold A 5 and the bottom mold B 6 are closed.

[0027] When the bottom mold A 5 and the bottom mold B 6 are closed, the backing plate 4 will drive the sliding seat 3 to slide and displace on the chute 2 on the surface of the plate base 1. At the same time, the sliding sleeve 11 inside the sliding seat 3 can be inserted and slidably displaced with the horizontal shaft 9 in the chute 2, and the buffer springs 10 on both sides of the horizontal shaft 9 outside the sliding seat 3 are convenient for providing elastic support for the sliding seat 3 and buffering when the sliding seat 3 slides, so as to facilitate buffering for the closing of the bottom mold A 5 and the bottom mold B 6 with each other, enabling the two to perform the mold closing operation more stably and facilitating the stable casting of the gearbox.

[0028] As Figure 1 and Figure 2 shown, retaining blocks 12 for limiting are assembled at both open ends on the outer periphery of the plate base 1.

[0029] During use, the retaining blocks 12 are convenient for blocking and protecting the open ends of the chute 2 on the surface of the plate base 1, thereby reducing the situation of mutual separation between the sliding seat 3 and the chute 2.

[0030] As Figure 2 shown, an insertion hole 15 is opened at one end of the retaining block 12 close to the horizontal shaft 9, and a cross shaft 14 inserted into the insertion hole 15 is integrally formed at one end of the horizontal shaft 9 close to the retaining block 12.

[0031] In use, the cross shaft 14 on the outer periphery of the horizontal shaft 9 and the jack 15 outside the stopper 12 are inserted and connected to each other, which is convenient for improving the stability of the horizontal shaft 9 during operation.

[0032] As Figure 1 and Figure 3 shown, two groups of grooves 18 are provided on the top surface of the plate seat 1, and two groups of convex strips 19 that fit with the grooves 18 are integrally formed on the bottom surface of the backing plate 4.

[0033] In use, the convex strip 19 at the bottom of the backing plate 4 and the groove 18 at the top of the plate seat 1 fit and slide with each other, which is convenient for improving the stability of the backing plate 4 during sliding displacement.

[0034] As Figure 2 and Figure 3 shown, rubber pads 17 are bonded to the opposite sides of the two groups of backing plates 4, and rubber rings 16 are bonded to the outer peripheral surfaces of both ends of the sliding sleeve 11.

[0035] In use, the rubber pad 17 has good elasticity, which is convenient for protection when the two groups of backing plates 4 are in contact with each other, while the rubber ring 16 has good protection performance, which is convenient for protecting both ends of the sliding sleeve 11 and protecting it when the two ends of the sliding sleeve 11 collide.

[0036] The working principle and usage process of the present utility model: In use, first install the corresponding structural components in the appropriate positions. When casting the gearbox using the casting mold, the bottom mold A5 and the bottom mold B6 can fit together to form the bottom mold structure, and cooperate with the top mold 7 structure to facilitate the casting of the gearbox. At the same time, when the bottom mold A5 and the bottom mold B6 are separated from each other, they can drive the backing plate 4 to move respectively, and the backing plate 4 drives the sliding seat 3 to slide in the chute 2 on the top of the plate seat 1, so that the bottom mold A5 and the bottom mold B6 can be stably separated from each other, and it is also convenient for subsequent mold closing, thereby reducing the situation of misalignment when the bottom mold A5 and the bottom mold B6 are closed. At the same time, when the bottom mold A5 and the bottom mold B6 are closed, the backing plate 4 will drive the sliding seat 3 to slide in the chute 2 on the surface of the plate seat 1. At the same time, the sliding sleeve 11 inside the sliding seat 3 can be inserted and slide with the horizontal shaft 9 in the chute 2, and the buffer springs 10 on both sides of the horizontal shaft 9 outside the sliding seat 3 are convenient for providing elastic support for the sliding seat 3 and buffering when the sliding seat 3 slides, so as to facilitate buffering for the closing of the bottom mold A5 and the bottom mold B6, making the two more stable for mold closing operation and facilitating the stable casting of the gearbox.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above-described embodiments and the descriptions in the specification merely illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all such changes and improvements fall within the scope of protection required by the present utility model. The scope of protection required by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A gravity casting mold for a gearbox, characterized in that It includes a plate base (1). A chute (2) is provided on the top surface of the plate base (1), and there are two groups of the chutes (2). A sliding seat (3) is slidably installed in the chute (2), and a backing plate (4) is integrally formed on the top surface of the sliding seat (3). A bottom mold A (5) and a bottom mold B (6) which are mutually fitted are respectively assembled on the top surfaces of the two backing plates (4), and a top mold (7) for casting a gearbox is inserted between the bottom mold A (5) and the bottom mold B (6). A disc seat (8) is assembled on the inner wall surface of the chute (2). A cross shaft (9) located in the chute (2) is assembled between the two disc seats (8), and the cross shaft (9) is inserted and connected with the sliding seat (3). A buffer spring (10) is sleeved on the outer periphery of the cross shaft (9) and located outside the sliding seat (3), and there are multiple groups of the buffer springs (10). A retaining ring seat (13) for limiting is assembled at one end of the cross shaft (9) away from the disc seat (8). A sliding sleeve (11) which is slidably connected with the cross shaft (9) is assembled in the sliding seat (3).

2. The gravity casting mold for a gearbox according to claim 1, characterized in that, Blocking blocks (12) for limiting are assembled at the open ends on both sides of the outer periphery of the plate base (1).

3. The gravity casting mold for a gearbox according to claim 2, wherein An insertion hole (15) is provided at one end of the blocking block (12) close to the cross shaft (9), and a cross shaft (14) which is inserted into the insertion hole (15) is integrally formed at one end of the cross shaft (9) close to the blocking block (12).

4. A gravity casting mold for a gearbox according to claim 1, characterized in that, A groove (18) is provided on the top surface of the plate base (1), and there are two groups of the grooves (18). A convex strip (19) which is fitted with the groove (18) is integrally formed on the bottom surface of the backing plate (4), and there are two groups of the convex strips (19).

5. A gravity casting mold for a gearbox according to claim 1, characterized in that, Rubber pads (17) are bonded to the opposite surfaces of the two backing plates (4), and rubber rings (16) are bonded to the two side end surfaces of the outer periphery of the sliding sleeve (11).

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