Wind power large megawatt planet carrier heat treatment device

Abstract

The invention discloses a heat treatment device for a wind power large megawatt planet carrier. The heat treatment device comprises a heat treatment hearth, an automatic lifting furnace door, a separable heat treatment trolley, a lifting air blocking device, a trolley operation track and a trolley rotating lifting air cooling device. The heat treatment devices comprise a left group and a right group; the automatic lifting furnace door is arranged on one side close to the trolley rotary lifting air cooling device; a separable heat treatment trolley is placed in a cavity in the heat treatment hearth; a liftable air blocking device is mounted below the separable heat treatment trolley; and the trolley rotary lifting air cooling device is arranged on one side of the heat treatment hearth. By introducing the separable heat treatment trolley, the automatic lifting furnace door and the air cooling device, efficient connection of heat treatment and air cooling can be achieved, the manual operation time is shortened, the labor intensity is reduced, and the overall production efficiency is remarkably improved.

Description

Technical Field

[0001] The present invention relates to a heat treatment device for a large-megawatt planetary gearbox of a wind turbine, belonging to the technical field of heat treatment. Background Art

[0002] With the continuous upgrading of wind power products, especially for the nodular cast iron parts of the planetary gearbox, as the megawatt number increases, the product specifications and dimensions are constantly increasing, and the product performance requirements are also continuously improving.

[0003] Some nodular cast iron materials need to be normalized to convert the matrix structure into a fine pearlite structure, so as to improve the strength of the product. The quality of the heat treatment process has a great influence on the internal tissue properties of nodular cast iron. As the product heat treatment equipment, the heat treatment furnace is crucial.

[0004] For the traditional heat treatment furnace used for nodular cast iron, after the product is taken out of the furnace, during the forced air cooling stage of normalizing the product, it needs to be manually lifted onto the rotating platform for air cooling. On the one hand, the product temperature when taken out of the furnace is as high as over 900°C, which is inconvenient for manual lifting. On the other hand, the manual lifting time is long, and the casting is in the natural cooling stage, which affects the formation of the product structure and has an impact on the product performance. And the traditional nodular cast iron heat treatment furnace generally has one heat treatment furnace corresponding to one or two air-cooled rotating platforms, and the production efficiency is not high. Therefore, this application proposes a new technical solution. Summary of the Invention

[0005] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a heat treatment device for a large-megawatt planetary gearbox of a wind turbine, so as to solve the above technical problems.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a heat treatment device for a large-megawatt planetary gearbox of a wind turbine, the heat treatment device includes a heat treatment furnace chamber, an automatic lifting furnace door, a separable heat treatment trolley, a liftable air-blocking device, a trolley running track, and a trolley rotating and lifting air-cooling device; There are 2 groups of the heat treatment devices arranged on the left and right; the automatic lifting furnace door is arranged on one side close to the trolley rotating and lifting air-cooling device; a separable heat treatment trolley is placed in the cavity of the heat treatment furnace chamber; a liftable air-blocking device is installed below the separable heat treatment trolley; The separable heat treatment trolley includes trolley one and trolley two; ventilation holes are arranged on the workbench surfaces of trolley one and trolley two, and the number of ventilation holes can be increased according to the size of the separable heat treatment trolley; a furnace door limit device is arranged at the end of the separable heat treatment trolley, which is used to position the trolley in the heat treatment furnace chamber; the pulleys at the bottom of the separable heat treatment trolley are installed on the track, and the pulleys are advanced and retracted on the track through a motor; the track includes a rotating track and a fixed track; the rotating track rotates together with the trolley rotating and lifting air-cooling device; The liftable air-blocking device includes a sealed air outlet, an air outlet lifting frame, an air outlet lifting shaft, an air outlet lifting motor, and an air outlet lifting base; the sealed air outlet is connected to the ventilation hole of the separable heat treatment trolley; the upper end of the air outlet lifting base is equipped with an air outlet lifting motor and an air outlet lifting shaft; one side of the air outlet lifting shaft is connected to the air outlet lifting frame; one end of the air outlet lifting frame extends into the sealed air outlet; The trolley rotation lift air-cooling device includes a bottom rotation table support and a rotation worktable; a liftable air-cooling device is arranged at the middle position of the bottom of the bottom rotation table support; the liftable air-cooling device includes a lifting frame base, a lifting frame motor, and a support column; the support column is connected to the air-cooling device lifting frame in a matching manner; the air-cooling device lifting frame is configured with an air outlet, and the air outlet cooperates with the ventilation holes on the worktable surface of the separable heat treatment trolley; the rotation worktable is connected to the bottom rotation table support through a transmission device; A fixed track one is arranged at the upper end of the rotation worktable.

[0007] Furthermore, a plurality of reinforcing rib plates are arranged between the left and right fixed tracks one, which are used to prevent the tracks from deforming, and the fixed track one is connected to the fixed track in a matching manner.

[0008] Furthermore, the transmission device is a gear transmission device, which includes a driving motor, a driving gear, and a transmission gear; according to the size of the rotation platform, transmission pulleys can be evenly distributed below the transmission gear to ensure rotation flexibility.

[0009] Furthermore, the bottom rotation table support includes a plurality of vertical supports, which are used to play a role in stable support.

[0010] Furthermore, the ventilation holes can be set as three ventilation holes one arranged obliquely or an intermediate ventilation hole arranged at the center position on the worktable.

[0011] Furthermore, the trolley one and the trolley two can be set as a small trolley and a large trolley according to product requirements to facilitate flexible production and adapt to multi-specification products.

[0012] The beneficial effects of the present invention are: 1. By introducing a separable heat treatment trolley and an automated lifting furnace door and air-cooling device, the equipment can achieve efficient connection between heat treatment and air-cooling, reduce the time and labor intensity of manual operation, and significantly improve the overall production efficiency; 2. During the heat treatment process, the cooperation between the automatic lifting furnace door and the liftable air-blocking device forms a sealed heating space, which helps to improve the uniformity and effect of heat treatment, ensure that the product reaches a more ideal organizational structure during the heating stage, and improve the strength and performance of the product; 3. The separated trolley design enables the device to be flexibly configured into trolleys of different specifications, adapting to the heat treatment requirements of various products, and enhancing the flexibility and adaptability of the production line; 4. The rotating lifting air-cooling device can effectively improve the air-cooling efficiency, ensure the rapid cooling of the castings after they are taken out of the furnace, contribute to improving the tissue performance of the products, and avoid the adverse effects brought by natural cooling; The heat treatment device for large megawatt planetary gears in wind power not only significantly improves the production efficiency, product quality and safety, but also conforms to the trends of diversification and energy conservation and environmental protection in modern production, providing strong technical support for the production in the wind power industry. Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the liftable air-blocking device of the present invention; Figure 3 It is a schematic diagram of the structure of the separable heat treatment trolley of the present invention; Figure 4 It is a schematic diagram of the connection structure between the separable heat treatment trolley and the liftable air-blocking device of the present invention; Figure 5 It is a schematic diagram of the structure of the middle ventilation hole of the present invention; Figure 6 It is a schematic diagram of the structure of the trolley rotating lifting air-cooling device of the present invention; Figure 7 It is a schematic diagram of the structure of the trolley running track of the present invention.

[0014] In the figure: 1. Heat treatment furnace chamber, 2. Automatic lifting furnace door, 3. Separable heat treatment trolley, 3.1. Trolley 1, 3.3. Trolley 2, 3.4. Furnace door limit device, 3.5. Pulley, 3.6. Middle ventilation hole, 3.7. Motor, 4. Liftable air-blocking device, 4.1. Sealing air-blocking port, 4.2. Air-blocking port lifting frame, 4.3. Air-blocking port lifting shaft, 4.4. Air-blocking port lifting motor, 4.5. Air-blocking port lifting base, 5. Trolley running track, 6. Trolley rotating lifting air-cooling device, 6.1, 6.2. Vertical support, 6.3. Fixed track 1, 6.4. Reinforcing rib plate, 6.5. Driving pulley, 6.6. Bottom rotating table support, 6.7. Support column, 6.8. Lifting frame base, 6.9. Lifting frame motor, 7.0. Driving motor, 7.1. Moving gear, 7.2. Driving gear, 7.3. Air outlet, 7.4. Air-cooling device lifting frame, 7.5. Rotating workbench. Detailed Embodiments

[0015] To make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0017] As Figure 1 shown, a heat treatment device for a large megawatt planetary gearbox of a wind turbine, the heat treatment device includes a heat treatment furnace chamber 1, an automatically lifting furnace door 2, a separable heat treatment trolley 3, a liftable air blocking device 4, a trolley running track 5, and a trolley rotary lifting air cooling device 6; There are 2 sets of the heat treatment devices arranged on the left and right; the automatically lifting furnace door 2 is arranged on one side close to the trolley rotary lifting air cooling device 6; a separable heat treatment trolley 3 is placed in the cavity of the heat treatment furnace chamber 1; a liftable air blocking device 4 is installed below the separable heat treatment trolley 3; Referring Figures 3 - 5 , the separable heat treatment trolley 3 includes trolley one 3.1 and trolley two 3.3; ventilation holes are provided on the work surfaces of trolley one 3.1 and trolley two 3.3, and the number of ventilation holes can be increased according to the specifications of the separable heat treatment trolley; a furnace door limit device 3.4 is provided at the end of the separable heat treatment trolley 3, which is used to position the trolley in the heat treatment furnace chamber 1; the pulley 3.5 at the bottom of the separable heat treatment trolley 3 is installed on the trolley running track 5, and the pulley 3.5 moves forward and backward on the trolley running track 5 through a motor 3.7; referring Figure 7 , the trolley running track 5 includes a rotary track 5.1 and a fixed track 5.2; the rotary track 5.1 rotates together with the trolley rotary lifting air cooling device 6; Referring Figure 2 , the liftable air blocking device 4 includes a sealed air blocking port 4.1, an air blocking port lifting frame 4.2, an air blocking port lifting shaft 4.3, an air blocking port lifting motor 4.4, and an air blocking port lifting base 4.5; the sealed air blocking port 4.1 is connected to the ventilation hole of the separable heat treatment trolley 3; the air blocking port lifting motor 4.4 and the air blocking port lifting shaft 4.3 are installed at the upper end of the air blocking port lifting base 4.5; one side of the air blocking port lifting shaft 4.3 is connected to the air blocking port lifting frame 4.2; one end of the air blocking port lifting frame 4.2 extends into the sealed air blocking port 4.1; Referring Figure 6, the trolley rotation and lifting air-cooling device 6 includes a bottom rotary table bracket 6.6 and a rotary worktable 7.5; a liftable air-cooling device is provided at the middle position of the bottom of the bottom rotary table bracket 6.6; the liftable air-cooling device includes a lift base 6.8, a lift motor 6.9 and a support column 6.7; the support column 6.7 is connected to the air-cooling device lift 7.4 in a cooperative manner; an air outlet 7.3 is configured on the air-cooling device lift 7.4, and the air outlet 7.3 cooperates with the ventilation holes on the worktable surface of the separable heat treatment trolley 3; the rotary worktable 7.5 is connected to the bottom rotary table bracket 6.6 through a transmission device; A fixed track 6.3 is provided at the upper end of the rotary worktable 7.5.

[0018] Preferably in this embodiment, a plurality of reinforcing rib plates 6.4 are provided between the left and right fixed tracks 6.3 for preventing the tracks from deforming, and the fixed track 6.3 is connected to the fixed track 5.2 in a cooperative manner.

[0019] Preferably in this embodiment, the transmission device is a gear transmission device, which includes a driving motor 7.0, a driving gear 7.1 and a transmission gear 7.2; according to the size of the rotary platform, transmission pulleys 6.5 can be evenly distributed below the transmission gear 7.2 to ensure rotational flexibility.

[0020] Preferably in this embodiment, the bottom rotary table bracket 6.6 includes a plurality of vertical brackets 6.1, 6.2 for playing a role of stable support.

[0021] Preferably in this embodiment, continue to refer to Figure 4 , Figure 5 , the ventilation holes can be set as three obliquely arranged ventilation holes 3.2 or an intermediate ventilation hole 3.6 arranged at the center position on the worktable.

[0022] Preferably in this embodiment, the trolley 3.1 and the trolley 3.3 can be set as a small trolley and a large trolley according to product requirements to facilitate flexible production and adapt to multi-specification products.

[0023] Working principle: The products to be heat-treated are placed on the two separable trolleys 3.1, 3.3. During the heat treatment process, the automatic lifting furnace door 2 is closed, and the automatic lifting furnace door 2 is pressed against the furnace door limit device 3.4. The plugging port lift 4.2 in the liftable air-blocking device 4 drives the sealing plugging port 4.1 to rise and embed into the ventilation ports 3.2 on the two separable trolleys 3.1, 3.3, forming a sealed heating space with the heat treatment furnace 1.

[0024] After heat treatment, the tuyere lifting frame 4.2 in the liftable air-blocking device 4 drives the sealing tuyere 4.1 to descend, the automatic lift furnace door 2 opens, and the two separable carriages 3.1 and 3.3 automatically drive out on the track. The front carriage 3.3 drives into the front carriage rotary lift air-cooling device 6, and the rear one drives into the rear carriage rotary lift air-cooling device 6. In the carriage rotary lift air-cooling device 6, the air-cooling device lifting frame 7.4 drives the air outlet 7.3 to rise through the ventilation openings 3.2 on the two separable carriages 3.1 and 3.3. At this time, ventilation occurs. The rotary workbench 7.5 is connected through a transmission device, and the transmission device is a motor 7.0, a driving gear 7.1, and a transmission gear 7.2. The rotary workbench 7.5 drives the separable carriage and the rotary track 5.1 to rotate together to achieve the purpose of air cooling.

[0025] If production requires, one heat treatment furnace can be used for heat treatment in one day, and the other for air cooling, alternating to improve production efficiency.

[0026] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, or improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A wind power large megawatt planetary carrier heat treatment device, characterized in that: The heat treatment device comprises a heat treatment furnace (1), an automatically lifting furnace door (2), a detachable heat treatment trolley (3), a liftable air blocking device (4), a trolley running track (5), and a trolley rotating lifting air cooling device (6); The heat treatment device is provided with two groups on the left and right; the automatic lifting furnace door (2) is provided at a position close to the side of the trolley rotating lifting air cooling device (6); a detachable heat treatment trolley (3) is placed in the cavity in the heat treatment furnace (1); a liftable air blocking device (4) is installed below the detachable heat treatment trolley (3); The detachable heat treatment trolley (3) comprises trolley one (3.1) and trolley two (3.3); ventilation holes are arranged on the working surfaces of trolley one (3.1) and trolley two (3.3), and the number of ventilation holes can be increased according to the size of the detachable heat treatment trolley; the end of the detachable heat treatment trolley (3) is provided with a furnace door limiting device (3.4), which is used to realize the positioning of the trolley in the heat treatment furnace (1); the pulley (3.5) at the bottom of the detachable heat treatment trolley (3) is installed on the trolley running track (5), and the pulley (3.5) can realize forward and backward movement on the trolley running track (5) through a motor (3.7); the trolley running track (5) comprises a rotating track (5.1) and a fixed track (5.2); the rotating track (5.1) rotates together with the trolley rotating lifting air cooling device (6); The liftable air blocking device (4) comprises a sealed air blocking vent (4.1), an air blocking vent lifting frame (4.2), an air blocking vent lifting shaft (4.3), an air blocking vent lifting motor (4.4) and an air blocking vent lifting base (4.5); the sealed air blocking vent (4.1) is connected to the ventilation hole of the detachable heat treatment trolley (3); the upper end of the air blocking vent lifting base (4.5) is equipped with an air blocking vent lifting motor (4.4) and an air blocking vent lifting shaft (4.3); one side of the air blocking vent lifting shaft (4.3) is connected to the air blocking vent lifting frame (4.2); one end of the air blocking vent lifting frame (4.2) extends into the sealed air blocking vent (4.1); The trolley rotating lifting air cooling device (6) comprises a bottom rotating table bracket (6.6) and a rotating worktable (7.5); a liftable air cooling device is arranged at the middle position of the bottom of the bottom rotating table bracket (6.6); the liftable air cooling device comprises a lifting frame base (6.8), a lifting frame motor (6.9) and a support column (6.7); the support column (6.7) is connected to the air cooling device lifting frame (7.4); an air outlet (7.3) is arranged on the air cooling device lifting frame (7.4), and the air outlet (7.3) cooperates with the ventilation hole on the worktable surface of the detachable heat treatment trolley (3); the rotating worktable (7.5) is connected to the bottom rotating table bracket (6.6) via a transmission device; A fixed track 1 (6.3) is arranged at the upper end of the rotating workbench (7.5).

2. A wind power large megawatt planetary carrier heat treatment device according to claim 1, characterized in that: A plurality of reinforcing rib plates (6.4) are provided between the left and right fixed rails 1 (6.3) to prevent rail deformation. The fixed rail 1 (6.3) is cooperatively connected with the fixed rail (5.2).

3. A wind power large megawatt planetary carrier heat treatment device according to claim 1, characterized in that: The transmission device is a gear transmission device, which comprises a driving motor (7.0), a moving gear (7.1), and a transmission gear (7.2); according to the size of the rotating platform, transmission pulleys (6.5) can be evenly distributed under the transmission gear (7.2) to ensure rotation flexibility.

4. A wind power large megawatt planetary carrier heat treatment device according to claim 1, characterized in that: The bottom rotating table support (6.6) comprises a plurality of vertical supports (6.1, 6.2) which are used to provide a stable support.

5. A wind power large megawatt planetary carrier heat treatment device according to claim 1, characterized in that: The ventilation holes can be configured as three ventilation holes (3.2) arranged obliquely or as a middle ventilation hole (3.6) arranged at the center of the workbench.

6. A wind power large megawatt planetary carrier heat treatment device according to claim 1, characterized in that: The trolley 1 (3.1) and the trolley 2 (3.3) can be set as a small trolley and a large trolley according to product requirements to facilitate flexible production and adapt to products of multiple specifications.

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