Enhanced hook forming device for combustion chamber of gas turbine

Abstract

The utility model discloses a gas turbine combustion chamber enhanced hook forming device which comprises an upper die and a lower die located below the upper die, a follow-up die core is movably installed in the lower die, and the end of the follow-up die core is connected with the lower die through a reset spring. A lower forming groove is formed in the side, facing the upper die, of the follow-up die core, a protrusion is arranged in the lower forming groove, an upper forming groove is formed in the bottom of the upper die, and a groove corresponding to the protrusion is formed in the upper forming groove. The follow-up mold core is arranged in the lower mold body, the corresponding protrusions are arranged on the follow-up mold core, the protrusions on the follow-up mold core correspond to the grooves in the upper mold body, integral forming of the hook airflow opening of the gas turbine engine can be achieved, it is ensured that hook bending machining is in place, and the forming rate is increased; and compared with pneumatic and electric molding, the molding reliability is guaranteed, the reset spring is further arranged, the molded gas turbine hook can be rapidly separated, operation is easy, and efficiency is high.

Description

A gas turbine combustion chamber enhanced hook forming device Technical Field

[0001] This utility model relates to the field of gas turbine manufacturing technology, specifically to a gas turbine combustion chamber enhanced hook forming device. Background Technology

[0002] A gas turbine is a rotary power machine that converts the heat energy generated by fuel combustion into mechanical energy. It is widely used in power generation, aviation propulsion, marine power, and petrochemical industries. Existing gas turbine hook products use a right-angled hook design (as shown in Figure 1). Because it operates in a high-temperature environment, the increased contact surface area results in relatively low airflow, leading to localized temperature increases and thus reducing the hook's lifespan.

[0003] Currently, the newly designed reinforced hook with a curved airflow port (as shown in Figure 2) is used to improve the airflow rate. However, the newly designed reinforced hook with an airflow port has caused many problems in the product processing. During the product processing, the bending is not in place, resulting in low product forming rate and uncontrollable processing consistency. Based on this, this application proposes a gas turbine combustion chamber reinforced hook forming device to solve the above-mentioned shortcomings. Summary of the Invention

[0004] The technical problem to be solved by this utility model is: how to solve the problem of low molding rate in the molding of reinforced hooks.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A gas turbine combustion chamber enhanced hook forming device includes an upper mold and a lower mold located below it. A follower mold core is movably installed in the lower mold, and the end of the follower mold core is connected to the lower mold through a return spring.

[0007] The follower mold core has a lower forming groove on the side facing the upper mold, and a protrusion is provided in the lower forming groove. The bottom of the upper mold has an upper forming groove, and a groove corresponding to the protrusion is provided in the upper forming groove.

[0008] As a further embodiment of this utility model: the follower mold core includes a fan-shaped movable part and a lower forming groove, wherein the fan-shaped movable part is movably connected to the lower mold, and the lower forming groove is located on one side of the fan-shaped movable part.

[0009] As a further embodiment of this utility model: the lower forming groove is generally L-shaped, and the protrusion is horizontally arranged along the thickness direction of the follower mold core.

[0010] As a further embodiment of this utility model: the top of the fan-shaped movable part is provided with a protruding upper connecting part, and the two ends of the upper connecting part are provided with a connecting hole for the mounting part connected to the reset spring.

[0011] As a further embodiment of this utility model: one end of the reset spring is connected to the connecting hole of the first mounting component through the first mounting component, and the other end is connected to the lower mold through the second mounting component.

[0012] As a further embodiment of this utility model: the two ends of the follower mold core are movably connected to the lower mold through fixed arms.

[0013] As a further embodiment of this utility model: one end of the fixed arm is connected to the fixed arm connection hole opened at the center position of the follower mold core, and the other end is connected to the lower mold.

[0014] As a further embodiment of this utility model: a lower mold follower groove is formed in the lower mold and is movably connected to the follower mold core.

[0015] As a further embodiment of this utility model: the lower mold follower groove is generally L-shaped, wherein the horizontal surface of the lower mold follower groove can be on the same plane as the horizontal surface of the lower forming groove.

[0016] As a further embodiment of this utility model, the bottom of the upper mold is generally in the shape of a "step".

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This application achieves integrated forming of the gas turbine hook airflow port by setting a follower mold core in the lower mold and setting corresponding protrusions on the follower mold core. The protrusions on the follower mold core correspond to the grooves in the upper mold, ensuring that the hook bending is completed in place and improving the forming rate. This application adopts a purely mechanical design, which ensures the forming reliability compared to pneumatic and electric methods. It also has a return spring to facilitate the quick release of the formed gas turbine hook. The operation is simple and efficient.

[0019] This application is implemented using a purely mechanical principle, eliminating the need for electric or pneumatic devices, ensuring reliability in mass production. At the same time, the dimensions of the gas turbine hooks after molding are consistent, resulting in a high yield rate. It also solves the problem of product rebound after molding. Furthermore, this application does not require high precision from the equipment; it can be achieved using ordinary hydraulic machine tools. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the existing gas turbine hook structure;

[0021] Figure 2 is a structural schematic diagram of the gas turbine hook of this utility model;

[0022] Figure 3 is a schematic diagram of the structure of the gas turbine combustion chamber enhanced hook forming device according to an embodiment of the present invention;

[0023] Figure 4 is a front view of Figure 3;

[0024] Figure 5 is an exploded view of Figure 3;

[0025] Figure 6 is a schematic diagram of the structure of the lower mold in an embodiment of this utility model;

[0026] Figure 7 is a schematic diagram of the structure of the follower mold core according to an embodiment of the present invention;

[0027] Figure 8 is a schematic diagram of the upper mold in an embodiment of this utility model;

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Upper mold; 11. Groove;

[0030] 2. Lower mold; 21. Lower mold follower groove;

[0031] 3. Products;

[0032] 4. Follower mold core; 41. Upper connecting part; 42. Mounting part connecting hole; 43. Fixed arm connecting hole; 44. Protrusion;

[0033] 5. Fixed arm;

[0034] 6. Reset spring; 61. Mounting component one; 62. Mounting component two. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0036] Referring to Figure 3, a gas turbine combustion chamber enhanced hook forming device includes an upper mold 1, a lower mold 2, a follower mold core 4, a fixed arm 5, and a return spring 6. The upper mold 1 is located above the lower mold 2 and can be installed on a conventional hydraulic machine tool to control the operation of the upper mold 1 and the lower mold 2. For ease of understanding and description, the vertical direction is taken as an example from Figure 1, and other directions are deduced from this reference. It should be understood that this orientation setting is only for the convenience of description and understanding and should not be construed as a limitation of this application.

[0037] Referring to Figure 8, the bottom of the upper mold 1 is provided with an upper forming groove. The bottom of the upper mold 1 is designed in a "stepped" shape. When the product 3 is extruded, the top horizontal plane of the "stepped" upper mold 1 is located directly above the upper connecting part 41 inside the follower mold core 4, the bottom horizontal plane of the "stepped" upper mold 1 is located directly above the horizontal plane of the lower forming groove inside the follower mold core 4, and the vertical plane of the "stepped" upper mold 1 is located on one side of the vertical plane of the lower forming groove inside the follower mold core 4 (refer to Figures 4 and 8).

[0038] A horizontal arc-shaped groove 11 is provided along the thickness direction of the upper forming groove, which can cooperate with the protrusion 44 on the follower mold core 4 for forming the airflow port bending of the subsequent gas turbine hook. The bottom surface of the upper mold 1 (i.e. the bottom of the "step" shape) is a horizontal surface, which can extrude the product 3 during use for forming the bottom horizontal surface of the product.

[0039] Referring to Figure 6, the top of the lower mold 2 is provided with a lower mold follower groove 21, in which the follower mold core 4 can rotate inside the lower mold follower groove 21. The lower mold follower groove 21 includes an arc-shaped part that can fit the follower mold core 4, and the follower mold core 4 also rotates inside the arc-shaped part. An "L"-shaped forming part is provided on one side of the arc-shaped part, and the upper forming groove of the upper mold 1 cooperates with the forming part here to realize the extrusion forming of the product 3.

[0040] Referring to Figure 7, the follower mold core 4 includes a fan-shaped movable part and an "L"-shaped lower forming groove. The fan-shaped movable part is movably connected to the arc-shaped part of the lower mold follower groove 21. The lower forming groove is located below the upper mold 1 and is used to cooperate with the upper forming groove of the upper mold 1 to process the curved part of the product. The horizontal plane of the "L"-shaped lower forming groove can be on the same plane as the horizontal plane of the lower mold follower groove 21 (as shown in Figure 4).

[0041] Furthermore, a protrusion 44 is horizontally provided along the thickness direction of the lower forming groove. The protrusion 44 is parallel to the groove 11 of the upper mold 1 and the two correspond to each other.

[0042] The top of the fan-shaped movable part is provided with a raised upper connecting part 41. Both ends of the upper connecting part 41 are provided with mounting holes 42 that are connected to the return spring 6. Fixed arm connecting holes 43 are provided at the center of both ends of the fan-shaped movable part.

[0043] Referring to Figures 4 and 5, the two ends of the follower mold core 4 are connected to the fixed arm 5. The top end of the fixed arm 5 is connected to the fixed arm connection hole 43 opened at the center of the follower mold core 4 by a pin. The pin does not affect the rotation of the follower mold core 4 in the follower groove 21 of the lower mold. The bottom end of the fixed arm 5 is movably connected to the lower mold 2 by a pin. In summary, the fixed arm 5 only positions the follower mold core 4 and does not affect the rotation of the follower mold core 4.

[0044] Referring to Figures 4 and 5, one end of the return spring 6 is connected to the mounting part 1 connection hole 42 on the follower mold core 4 through mounting part 1 61, and the other end is connected to the lower mold 2 through mounting part 2 62.

[0045] The specific operating principle of this application is as follows:

[0046] The lower mold 2 and the upper mold 1 are fixed on a hydraulic press. The hydraulic press controls the movement of the upper mold 1 and the lower mold 2, placing the product 3 on the lower mold 2. The product 3 and the lower mold 2 move downwards simultaneously. When the bottom horizontal surface of the product 3 contacts the lower forming groove of the follower mold core 4, the follower mold core 4 is controlled by an external drive mechanism (such as a motor) to move clockwise around the follower groove 21 of the lower mold. At this time, the position of the protrusion 44 on the follower mold core 4 changes and is inserted into the groove 11 of the upper mold 1. The product 3 located between the protrusion 44 and the groove 11 comes into contact, causing the product 3 to be bent and formed, which is the state shown in Figure 4. The formed product is shown in Figure 2.

[0047] When product 3 and upper mold 1 move upward, the return spring 6 works simultaneously, and the follower mold core 4 moves counterclockwise in the follower groove 21 of the lower mold. After reaching a certain position, it comes out of product 3, and at this time, one product 3 processing cycle ends.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A gas turbine combustion chamber enhanced hook forming device, comprising an upper mold (1) and a lower mold (2) located below it, characterized in that, A follower mold core (4) is movably installed inside the lower mold (2). The end of the follower mold core (4) is connected to the lower mold (2) through a return spring (6). The follower mold core (4) has a lower forming groove on the side facing the upper mold (1) and a protrusion (44) is provided in the lower forming groove. The bottom of the upper mold (1) has an upper forming groove and a groove (11) corresponding to the protrusion (44) is provided in the upper forming groove.

2. The gas turbine combustion chamber enhanced hook forming device according to claim 1, characterized in that: The follower mold core (4) includes a fan-shaped movable part and a lower forming groove, wherein the fan-shaped movable part is movably connected to the lower mold (2), and the lower forming groove is located on one side of the fan-shaped movable part.

3. The gas turbine combustion chamber enhanced hook forming device according to claim 2, characterized in that: The lower forming groove is L-shaped, and the protrusion (44) is horizontally set along the thickness direction of the follower mold core (4).

4. The gas turbine combustion chamber enhanced hook forming device according to claim 2, characterized in that: The top of the fan-shaped movable part is provided with a protruding upper connecting part (41), and the two ends of the upper connecting part are provided with mounting holes (42) for connecting with the return spring (6).

5. The gas turbine combustion chamber enhanced hook forming device according to claim 4, characterized in that: One end of the reset spring (6) is connected to the mounting hole (42) of the mounting part one (61), and the other end is connected to the lower mold (2) through the mounting part two (62).

6. The gas turbine combustion chamber enhanced hook forming device according to claim 1, characterized in that: The two ends of the follower mold core (4) are movably connected to the lower mold (2) through the fixed arm (5).

7. The gas turbine combustion chamber enhanced hook forming device according to claim 6, characterized in that: One end of the fixed arm (5) is connected to the fixed arm connection hole (43) opened at the center of the follower mold core (4), and the other end is connected to the lower mold (2).

8. The gas turbine combustion chamber enhanced hook forming device according to claim 1, characterized in that: The lower mold (2) has a lower mold follower groove (21) that is movably connected to the follower mold core (4).

9. The gas turbine combustion chamber enhanced hook forming device according to claim 8, characterized in that: The lower mold follower groove (21) is generally L-shaped, wherein the horizontal surface of the lower mold follower groove (21) is on the same plane as the horizontal surface of the lower forming groove.

10. The gas turbine combustion chamber enhanced hook forming device according to claim 9, characterized in that: The bottom of the upper mold (1) is generally in the shape of a "step".

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