Furnace bed lifting type aircraft engine blade casting mold shell preheating furnace
Through the furnace lifting structure and the mold shell preheating furnace driven by the servo motor, the problems of damage to heating wires and difficulty in loading and unloading due to furnace body movement in the prior art are solved, and a stable and efficient mold shell heating process is achieved.
Patent Information
- Application Number
- CN202422369554.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-27
AI Technical Summary
During the heating process, the existing mold shell preheating furnace is prone to damage the heating wire due to the huge moving structure of the furnace body, and it is difficult to load and unload.
The furnace bed lifting structure is adopted, and the screw drives the furnace bed and mold shell to move up and down through a servo motor, and combines electric heating wires and thermocouples to achieve heating control to avoid the furnace body moving.
It reduces the difficulty of loading and unloading, reduces the risk of damage to the heating element, and improves the stability and efficiency of the heating process.
Smart Images
Figure CN223129278U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a preheating furnace, and more specifically, to a furnace bed lifting type preheating furnace for a casting mold shell of an aero-engine blade. Background Art
[0002] In the production process of an aero-engine blade casting mold shell, a preheating furnace is required to preheat the mold shell. The existing mold shell preheating furnace usually places the workpiece at a fixed position, and then moves the furnace body to cover the workpiece for heating.
[0003] However, due to the large weight and volume of the furnace body, the furnace body moving structure is generally relatively large, and the heating wire after high-temperature heating is brittle, and moving the furnace body may cause vibration damage to the heating wire. Content of the Utility Model
[0004] The utility model aims at the above defects of the prior art and provides a furnace bed lifting type preheating furnace for a casting mold shell of an aero-engine blade.
[0005] The technical solution adopted by the utility model to solve its technical problems is: constructing a furnace bed lifting type preheating furnace for a casting mold shell of an aero-engine blade, the preheating furnace includes a frame, a furnace body fixedly installed on the top of the frame, a heating cover fixedly arranged in the furnace body, a heating element fixedly arranged in the furnace body and located outside the heating cover, a lead screw vertically and rotatably arranged on the frame, a servo motor fixedly arranged on the frame for driving the lead screw to rotate, a nut sleeve sleeved on the lead screw and threadedly connected with the lead screw, a furnace bed fixedly connected with the nut sleeve and located directly below the furnace body, and a guide rod fixedly arranged on the frame and parallel to the lead screw. The furnace bed is provided with a guide sliding hole through which the guide rod can pass, and the bottom of the furnace body and the heating cover are provided with openings through which the mold shell on the furnace bed can enter the heating cover.
[0006] In the furnace bed lifting type preheating furnace for a casting mold shell of an aero-engine blade described in the utility model, the preheating furnace further includes a thermocouple inserted into the heating cover.
[0007] In the furnace bed lifting type preheating furnace for a casting mold shell of an aero-engine blade described in the utility model, the heating element is an electric heating wire arranged outside the heating cover.
[0008] In the furnace bed lifting type preheating furnace for a casting mold shell of an aero-engine blade described in the utility model, a heat insulation pad is laid on the upper surface of the furnace bed.
[0009] In the furnace bed lifting type preheating furnace for a casting mold shell of an aero-engine blade described in the utility model, a first inclined guide sliding part is arranged on the first side of the bottom opening of the furnace body, and a second inclined guide sliding part is arranged on the second side of the bottom opening of the furnace body.
[0010] The preheating furnace for the casting mold shell of an aero-engine blade with a lifting furnace bed of the present utility model has the following beneficial effects: When using the preheating furnace for the casting mold shell of an aero-engine blade with a lifting furnace bed of the present utility model, place the mold shell on the furnace bed, control the servo motor to start, the servo motor drives the lead screw to rotate and drives the nut sleeve to move upward along the lead screw, the upward movement of the nut sleeve drives the furnace bed and the mold shell to move upward into the heating hood, and the heating element preheats the mold shell in the heating hood. After the preheating is completed, control the servo motor to rotate in the reverse direction to take out the mold shell from the heating hood and the furnace body. In this application, the lead screw drives the furnace bed and the mold shell to move up and down, greatly reducing the difficulty of loading and unloading, and the furnace body does not need to move during the loading and unloading process, which can prevent the variable heating element or the furnace body from being damaged. Description of the Drawings
[0011] The present utility model will be further described below in conjunction with the drawings and embodiments. In the drawings:
[0012] Figure 1 is a schematic structural diagram of the preheating furnace for the casting mold shell of an aero-engine blade with a lifting furnace bed of the present utility model. Detailed Embodiment
[0013] To make the objectives, technical solutions, and advantages of the present utility model clearer, the embodiments of the present utility model will be described in further detail below in conjunction with the drawings.
[0014] As Figure 1 shown, in the first embodiment of the preheating furnace for the casting mold shell of an aero-engine blade with a lifting furnace bed of the present utility model, the preheating furnace 10 includes a frame 11, a furnace body 12 fixedly installed on the top of the frame 11, a heating hood 13 fixedly arranged in the furnace body 12, a heating element 14 fixedly arranged in the furnace body 12 and located outside the heating hood 13, a lead screw 15 vertically rotatably arranged on the frame 11, a servo motor 16 fixedly installed on the frame 11 for driving the lead screw 15 to rotate, a nut sleeve 17 sleeved on the lead screw 15 and threadedly connected to the lead screw 15, a furnace bed 18 fixedly connected to the nut sleeve 17 and located directly below the furnace body 12, and a guide rod 20 fixedly arranged on the frame 11 and parallel to the lead screw 15. The furnace bed 18 is provided with a guide sliding hole 21 through which the guide rod 20 can pass, and the bottom of the furnace body 12 and the heating hood 13 are provided with an opening 22 through which the mold shell 19 on the furnace bed 18 can enter the heating hood 13.
[0015] When using the hearth lifting type preheating furnace for aero-engine blade casting mold shell of the present utility model, place the mold shell 19 on the hearth 18, control the servo motor 16 to start. The servo motor 16 drives the lead screw 15 to rotate and drives the nut sleeve 17 to move upward along the lead screw 15. The upward movement of the nut sleeve 17 drives the hearth 18 and the mold shell 19 to move upward into the heating hood 13, and the heating element 14 preheats the mold shell 19 in the heating hood 13. After the preheating is completed, control the servo motor 16 to rotate in the reverse direction to take out the mold shell 19 from the heating hood 13 and the furnace body 12. In this application, driving the hearth 18 and the mold shell 19 to move up and down by the lead screw 15 greatly reduces the difficulty of loading and unloading, and the furnace body 12 does not need to move during the loading and unloading process, which can prevent the variable heating element 14 or the furnace body 12 from being damaged.
[0016] Further, to better control the heating temperature, the preheating furnace 10 further includes a thermocouple 23 inserted into the heating hood 13, and the heating element 14 is an electric heating wire arranged on the periphery of the heating hood 13.
[0017] The heating temperature in the heating hood 13 is detected in real time by the thermocouple 23, and the heating power of the electric heating wire is adjusted according to the heating requirement.
[0018] Further, to prevent the high temperature in the furnace body 12 from being transmitted outward through the hearth 18, a heat insulation pad 24 is provided on the upper surface of the hearth 18.
[0019] To facilitate the mold shell 19 to enter the furnace body 12 through the opening 22, a first inclined guiding and sliding part 25 is provided on the first side of the opening 22 at the bottom of the furnace body 12, and a second inclined guiding and sliding part 26 is provided on the second side of the opening 22 at the bottom of the furnace body 12.
[0020] In addition, in the present utility model, unless otherwise clearly defined and limited, terms such as "connected", "connected", "stacked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0021] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be included in the patent protection scope of the present utility model by the same token.
Claims
1. A preheating furnace for a casting mold shell of an aeroengine blade with a liftable hearth, characterized in that, The preheating furnace includes a frame, a furnace body fixedly installed on the top of the frame, a heating hood fixedly arranged in the furnace body, heating elements fixedly arranged in the furnace body and located outside the heating hood, a lead screw rotatably arranged vertically on the frame, a servo motor fixedly arranged on the frame for driving the rotation of the lead screw, a nut sleeve sleeved on the lead screw and threadedly connected with the lead screw, a furnace bed fixedly connected with the nut sleeve and located directly below the furnace body, and a guide rod fixedly arranged on the frame and arranged in parallel with the lead screw. The furnace bed is provided with a guide sliding hole through which the guide rod can pass, and the bottom of the furnace body and the heating hood are provided with openings through which the mold shell on the furnace bed can enter the heating hood.
2. The preheating furnace for the hearth-lifting aero-engine blade casting mold shell according to claim 1, characterized in that, The preheating furnace further includes a thermocouple inserted into the heating hood.
3. The preheating furnace for the hearth-lifting aero-engine blade casting mold shell according to claim 1, characterized in that, The heating element is an electric heating wire arranged outside the heating hood.
4. The preheating furnace for the hearth-lifting aeroengine blade casting mold shell according to claim 1, wherein A heat insulation pad is laid on the upper surface of the furnace bed.
5. The preheating furnace for the hearth-lifting aero-engine blade casting mold shell according to claim 1, wherein A first inclined guide sliding part is arranged on the first side of the opening at the bottom of the furnace body, and a second inclined guide sliding part is arranged on the second side of the opening at the bottom of the furnace body.