Wind power generation blade sandwich material baking furnace and working method thereof

Abstract

The invention discloses a wind power generation blade sandwich material baking furnace and a working method thereof, relates to the technical field of baking equipment, and solves the technical problems that a traditional baking furnace is difficult to uniformly bake a wind power generation blade sandwich material and the sandwich material is easily physically covered by a support body to cause insufficient baking. Comprising a furnace chamber for conveying hot air, a supporting piece is arranged at the bottom of the furnace chamber and sleeved with a plugging piece, the plugging piece and the furnace chamber are jointly sleeved with a furnace cover, a clamping mechanism used for clamping a material body is installed on the plugging piece, the outer side of the furnace chamber is slidably sleeved with a hot air jacket with an air outlet hole, and an air guide mechanism is installed between the hot air jacket and the furnace chamber. A linkage mechanism is installed on the supporting piece and used for driving the clamping mechanism to rotate in the revolution process. According to the baking device, the wind power generation blade sandwich material can be conveniently, comprehensively and uniformly baked, the baking uniformity is improved, and the situation of insufficient baking caused by physical covering of a supporting body is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of baking equipment, and in particular to a baking furnace for sandwich materials of wind power generation blades and a working method thereof. Background Art

[0002] The core material of wind turbine blades is baked during the manufacturing process mainly to remove moisture, solidify the resin and ensure the performance of the final composite material. In the production of wind turbine blades, especially when using vacuum infusion molding, the reinforcing fibers and core materials need to be dried in advance to control the moisture content. This is because resins such as polyurethane are very sensitive to moisture. If there is too much moisture in the blade, bubbles may form during the resin infusion process, affecting the overall performance of the material, such as strength and durability.

[0003] Balsa wood is widely used as a sandwich material in wind turbine blades due to its excellent mechanical properties and naturally grown plate-like structure. However, as a natural wood, balsa wood has a high moisture content. If it is not properly dried, it may cause dimensional changes, deformation, and even delamination during the blade manufacturing process, thus affecting the overall quality of the blade. Therefore, baking balsa wood before integrating it into the composite material is a very necessary step, which not only helps to reduce its moisture content, but also improves its dimensional stability and the bonding effect with other materials.

[0004] Traditional baking ovens mostly use a fixed hot air circulation system, and the sandwich materials are laid flat in the oven in a static manner. After the hot air is blown into the oven cavity from the air outlet in one direction, the heat transfer shows an obvious spatial attenuation effect due to the lack of dynamic regulation of the air flow path. The area close to the air outlet is directly impacted by the hot air, and the temperature is significantly higher than that of the distal area. This temperature gradient will cause a large difference in the drying effect of different parts of the sandwich material. In addition, the sandwich material needs to be supported and fixed in the oven by a metal bracket or a mesh tray. The contact area is physically covered by the support body and cannot directly contact the hot air flow, which makes this part prone to under-baking. Summary of the invention

[0005] The purpose of the present invention is to provide a wind power blade core material baking furnace and a working method thereof, which solves the problem that traditional baking furnaces are difficult to evenly bake wind power blade core materials and the core materials are easily insufficiently baked due to being physically covered by a support body.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A first aspect of the present invention provides a wind power generation blade sandwich material baking furnace, comprising a furnace chamber for conveying hot air, a support member is provided at the bottom of the furnace chamber, a sealing member is mounted on the support member, a furnace cover is jointly mounted on the sealing member and the furnace chamber, and a clamping mechanism for clamping a material body is installed on the sealing member, a hot air jacket with air outlet holes is slidably mounted on the outer side of the furnace chamber, an air guiding mechanism is installed between the hot air jacket and the furnace chamber, a linkage mechanism is installed on the support member, the linkage mechanism is used to drive the clamping mechanism to rotate during the revolution, and drive the clamped material body to rotate eccentrically during the rotation, the linkage mechanism is also used to drive the hot air jacket to reciprocate and lift, an abutment is installed on the inner side wall of the furnace cover, the abutment is used to promote the adaptive sliding of the sandwich material body when the sandwich material body rotates eccentrically, and a lifting mechanism is installed between the furnace chamber and the furnace cover.

[0007] As a further solution of the present invention: the support member includes a support tube with strip grooves, a column and a chassis, two of the strip grooves are penetrated and opened on the tube wall of the support tube in the height direction, the support tube is fixedly installed at the bottom of the furnace cavity, and the outer cross-section of the support tube is equal to that of the furnace cavity, a plurality of the columns are circumferentially connected to the bottom of the support tube, and the chassis is connected to the bottom end of the column.

[0008] As a further solution of the present invention: the sealing member includes an annular plate, a sleeve, an annular plug and a support rod, the annular plate is rotatably mounted on the outer tube wall of the support tube near the bottom end, the sleeve is rotatably mounted on the annular plate, and the bottom of the sleeve is connected to the top of the chassis through the support rod, the annular plug is mounted on the sleeve, and the outer ring of the annular plug is in contact with the inner wall of the furnace hood near the bottom end.

[0009] As a further solution of the present invention: the air guide mechanism includes a U-shaped tube, a telescopic tube and a branch tube, the two ends of the horizontal portion of the U-shaped tube are arranged through two strip grooves, and the top end of the U-shaped tube is connected to the inner cavity of the hot air jacket, the top end of the telescopic tube is connected to the bottom of the furnace cavity through the branch tube, and the bottom end of the telescopic tube is connected to the horizontal portion of the U-shaped tube through the branch tube.

[0010] As a further solution of the present invention: the clamping mechanism includes a shell, a rotating pin, a through groove, a first screw, a supporting roller and a limiting piece, the two through grooves are symmetrically arranged at the top of the shell, the rotating pin is connected at the bottom center of the shell, and the rotating pin passes through the annular plate, one end of the first screw passes through the outer wall of the shell and is rotatably connected to the inner wall thereof, and opposite threads are symmetrically arranged on the first screw, the two limiting pieces are symmetrically mounted on the first screw, and the limiting pieces can slide along the through groove, the rotating pin is rotatably arranged above the shell, the limiting piece is slidably connected to the rotating pin, the rotating pin is used to support the material body, and the material body is arranged between the two limiting pieces.

[0011] As a further solution of the present invention: the linkage mechanism includes a first motor, a driving gear, an inner gear ring, a driven gear, an outer gear ring and a reciprocating assembly, the inner gear ring is connected to the bottom of the annular plate through a plurality of circumferentially distributed connecting rods, the first motor is installed on the top of the chassis, the driving gear is driven by the first motor, and the driving gear is meshed with the inner gear ring, the driven gear is coaxially connected to the turn pin, the outer gear ring is meshed with the driven gear, and a horizontal column is connected between the outer gear ring and the column, the first motor is connected to the air guide mechanism through a reciprocating assembly, and the reciprocating assembly is used to drive the hot air jacket to reciprocate and rise and fall when the first motor is running.

[0012] As a further solution of the present invention: the resistance member includes an annular ring and support rods, a plurality of the support rods are distributed circumferentially along the inner wall of the furnace hood, one end of the support rod away from the furnace hood is connected to the annular ring, and the material body is located on the inner side of the annular ring.

[0013] As a further solution of the present invention: the reciprocating assembly includes a reciprocating screw, an extension column, a sprocket and a chain, the extension column is connected to the air guide mechanism, the reciprocating screw passes through the bottom of the support tube and extends to its inner cavity, and the extension column is threadedly sleeved with the reciprocating screw, the two sprockets are respectively installed on the first motor shaft and the reciprocating screw, and the chain is sleeved on the two sprockets.

[0014] As a further solution of the present invention: the lifting mechanism includes a square tube, a second motor, a second screw, a moving part and a connecting frame. The square tube is arranged in the furnace cavity, and its top end passes through the top of the furnace cavity. The second motor is installed in the square tube, and the output end of the second motor is connected to the second screw. The moving part is plugged into the square tube, and the moving part is threadedly sleeved with the second screw. The top end of the square tube is connected to the connecting frame, and the connecting frame is installed on the top of the furnace hood.

[0015] A second aspect of the present invention provides a working method of a wind power generation blade sandwich material baking furnace, comprising the following steps: Step 1: Use the lifting mechanism to lift the furnace cover, support and clamp the material body through the clamping mechanism, and then control the furnace cover to descend and reset, so that a closed baking area is formed between the furnace cover, the blocking part and the furnace cavity; Step 2: Use the air guide mechanism to guide the hot air generated in the furnace cavity into the hot air jacket, and finally blow the hot air evenly toward the material body through the air outlet; Step 3: Start the linkage mechanism to drive the clamping mechanism and the material body to revolve, and make it rotate during the revolution. Use the abutment to make the self-rotating material body slide along the clamping mechanism adaptively, so that the material body can be fully and evenly contacted with the hot air to achieve uniform baking. Step 4: After baking, start the lifting mechanism to lift the furnace cover again, and then take out the material body on the clamping mechanism one by one.

[0016] Beneficial effects of the present invention: 1. In the present invention, a hot air baking area is conveniently enclosed by a furnace cavity, a sealing member and a furnace cover, and a lifting mechanism is used to conveniently control the lifting and lowering of the furnace cover in the vertical direction, so as to conveniently control the opening and closing of the baking furnace according to needs. After the furnace cover is lifted, the clamping mechanism is used to conveniently clamp and support the main body of the material to be dried, so that it is convenient to distribute it vertically and orderly in the baking area.

[0017] 2. In the present invention, the hot air transported out of the furnace cavity is conveniently introduced into the inner cavity of the hot air jacket through the air guide mechanism, and the hot air is conveniently blown out in a circular shape and uniformly through the air outlet holes evenly distributed circumferentially on the side wall of the hot air jacket, so that the material body can be evenly dried and the drying effect is improved.

[0018] 3. In the present invention, the linkage mechanism not only facilitates the clamping mechanism on the blocking member to revolve, but also facilitates the clamping mechanism to self-rotate during the revolving process. The clamping mechanism can drive the material body to move synchronously, so that it is not only convenient for the material body to revolve along the hot air jacket, but also for the material body to self-rotate during the revolving process, so that the material body can be fully and evenly exposed to the hot air, avoiding the uneven baking. In addition, the clamping mechanism self-rotates during the revolving process of the material body, which facilitates the uniform stirring of the hot air in the baking area, which is conducive to further improving the uniformity of baking.

[0019] 4. In the present invention, the material body is driven to rotate by the clamping mechanism, and the resisting member can make the sandwich material body adaptively slide back and forth along the clamping mechanism during the rotation, thereby preventing the part of the sandwich material body in contact with the clamping mechanism from being unable to directly contact the hot air flow, making it less likely for the sandwich material body to be under-baked. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a three-dimensional diagram of a baking furnace for sandwich materials of a wind power blade according to the present invention; Figure 2 It is a three-dimensional diagram of a furnace cover in a baking furnace for sandwich materials of a wind power generation blade according to the present invention after being lifted; Figure 3 It is a three-dimensional diagram of a cross-section of a baking furnace for sandwich materials of a wind power blade according to the present invention; Figure 4 It is a three-dimensional diagram of the connection part between the blocking member and the supporting member in a baking furnace for sandwich materials of a wind power generation blade according to the present invention; Figure 5 It is a three-dimensional diagram of a baking furnace for sandwich materials of a wind power blade according to the present invention after the furnace cover is removed; Figure 6 It is a stereoscopic diagram of the connection part between the furnace cavity and the air guide mechanism in a baking furnace for sandwich materials of wind power blades of the present invention; Figure 7 It is a three-dimensional diagram of a clamping mechanism in a baking furnace for sandwich materials of a wind power blade according to the present invention; Figure 8 It is a three-dimensional diagram of a limiter in a baking furnace for sandwich materials of a wind power blade according to the present invention; Fig. 9 It is a stereoscopic diagram of the connection part between the blocking piece and the linkage mechanism in a baking furnace for sandwich materials of a wind power blade of the present invention; Fig.10 It is a three-dimensional diagram of the connection part between the furnace cover and the abutment member in a baking furnace for sandwich materials of a wind power generation blade of the present invention; Fig.11 It is a schematic diagram of the initial state of the material body and the annular ring in a baking furnace for the sandwich material of a wind power generation blade of the present invention; Fig.12 It is a schematic diagram of a first state when a material body and an annular ring are in conflict in a baking furnace for sandwich materials of a wind power blade of the present invention; Fig.13 It is a schematic diagram of a second state when the material body and the annular ring are in conflict in a baking furnace for sandwich materials of a wind power blade of the present invention; Fig.14 It is a schematic diagram of the state of a material body in a baking furnace for sandwich materials of a wind power generation blade according to the present invention after being rotated 180 degrees.

[0022] In the figure: 1, furnace chamber; 2, support member; 21, strip groove; 22, support tube; 23, column; 24, chassis; 3, blocking member; 31, annular plate; 32, collar; 33, annular plug; 34, support rod; 4, furnace cover; 5, material body; 6, clamping mechanism; 61, shell; 62, rotating pin; 63, through groove; 64, first screw; 65, support roller; 66, limit member; 661, sliding part; 662, vertical part; 663, clamping roller; 664, horizontal part; 7, hot air jacket; 71, air outlet; 8, guide Wind mechanism; 81, U-shaped tube; 82, telescopic tube; 83, branch tube; 9, linkage mechanism; 91, first motor; 92, driving gear; 93, inner gear ring; 94, driven gear; 95, outer gear ring; 96, reciprocating screw rod; 97, extension column; 98, sprocket; 99, chain; 10, resistance member; 101, annular ring; 102, support rod; 11, lifting mechanism; 111, square tube; 112, second motor; 113, second screw rod; 114, moving member; 115, connecting frame; 12, air inlet pipe; 13, air outlet pipe. DETAILED DESCRIPTION

[0023] The technical scheme of the present invention will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1-Figure 10 As shown, the present invention is a baking furnace for sandwich materials of wind power generation blades, comprising a furnace chamber 1 for conveying hot air, a support member 2 is provided at the bottom of the furnace chamber 1, a sealing member 3 is sleeved on the support member 2, a furnace cover 4 is sleeved on the sealing member 3 and the furnace chamber 1, and a clamping mechanism 6 for clamping a material body 5 is installed on the sealing member 3, a hot air jacket 7 with an air outlet 71 is slidably sleeved on the outer side of the furnace chamber 1, an air guide mechanism 8 is installed between the hot air jacket 7 and the furnace chamber 1, a linkage mechanism 9 is installed on the support member 2, the linkage mechanism 9 is used to drive the clamping mechanism 6 to rotate during the revolution, and drive the clamped material body 5 to rotate eccentrically during the rotation, the linkage mechanism 9 is also used to drive the hot air jacket 7 to reciprocate and lift, an abutment member 10 is installed on the inner side wall of the furnace cover 4, the abutment member 10 is used to push the sandwich material body 5 to slide adaptively when it rotates eccentrically, and a lifting mechanism 11 is installed between the furnace chamber 1 and the furnace cover 4.

[0025] It should be noted that when in use, the lifting mechanism 11 is started to lift the furnace cover 4, and the clamping mechanism 6 is used to support and clamp the material body 5 to be dried, and then the lifting mechanism 11 is used to lower the furnace cover 4 to reset. At this time, the furnace cavity 1, the blocking member 3 and the furnace cover 4 are enclosed to form a hot air baking area. In order to improve the sealing effect, in this embodiment, a sealing ring is arranged between the furnace cover 4 and the furnace cavity 1, and the air guide mechanism 8 is used to guide the hot air transported from the furnace cavity 1 into the inner cavity of the hot air jacket 7, and the hot air is blown to the baking area in a circular shape by the air outlet holes 71 uniformly distributed circumferentially on the side wall of the hot air jacket 7. The linkage mechanism 9 is started to drive the clamping mechanism 6 on the blocking member 3 to revolve, so that the clamping mechanism 6 rotates itself during the revolution, and the clamping mechanism 6 drives the material body 5 to move synchronously, that is, the material body 5 revolves along the hot air jacket 7, and rotates itself during the revolution, so that the material body 5 can be fully and evenly contacted with the hot air, avoiding the uneven baking. In addition, the clamping mechanism 6 drives the material body 5 to rotate during the revolution, thereby uniformly stirring the hot air in the baking area, further improving the uniformity of baking. When the material body 5 is installed on the clamping mechanism 6, its position is reasonably adjusted so that the clamping mechanism 6 drives the material body 5 to rotate eccentrically. During the eccentric rotation, the material body 5 is squeezed by the resistance member 10, so that the material body 5 can slide back and forth along the clamping mechanism 6, thereby preventing the part of the material body 5 that contacts the clamping mechanism 6 from directly contacting the hot air flow. In this embodiment, an air inlet pipe 12 and an air outlet pipe 13 are respectively arranged on the top of the furnace cavity 1 and the furnace cover 4. A fan and a combustion unit (not shown in the figure) are arranged in the furnace cavity 1. External air enters the furnace cavity 1 through the air inlet pipe 12 and is heated by the combustion unit to form hot air. The fan is used to transport the hot air to the hot air jacket 7 through the air guide mechanism 8. The air outlet pipe 13 is convenient for discharging waste heat for recycling.

[0026] like Figure 1-Figure 4 As shown, the support member 2 includes a support tube 22 with strip grooves 21, columns 23 and a chassis 24. Two strip grooves 21 are penetrated and opened on the tube wall of the support tube 22 in the height direction. The support tube 22 is fixedly installed at the bottom of the furnace cavity 1, and the outer cross-section of the support tube 22 is equal to that of the furnace cavity 1. A plurality of columns 23 are circumferentially connected to the bottom of the support tube 22, and the chassis 24 is connected to the bottom end of the column 23.

[0027] It should be noted that the support tube 22 is an open top structure and a closed bottom structure. The support tube 22 is used to support the furnace cavity 1 , and the base plate 24 and the column 23 are used to support the support tube 22 .

[0028] like Figure 2-Figure 4 As shown, the sealing member 3 includes an annular plate 31, a sleeve ring 32, an annular plug 33 and a support rod 34. The annular plate 31 is rotatably mounted on the outer cylinder wall of the support cylinder 22 near the bottom end. The sleeve ring 32 is rotatably mounted on the annular plate 31, and the bottom of the sleeve ring 32 is connected to the top of the chassis 24 through the support rod 34. The annular plug 33 is mounted on the sleeve ring 32, and the outer ring of the annular plug 33 is in contact with the inner wall of the furnace hood 4 near the bottom end.

[0029] It should be noted that, in the present embodiment, the annular plate 31 is rotatably connected to the outer wall of the support tube 22 via a first sealing bearing, the sleeve ring 32 is rotatably connected to the annular plate 31 via a second sealing bearing, and the support rod 34 is circumferentially distributed between the sleeve ring 32 and the chassis 24, ensuring that the annular plate 31 will not drive the sleeve ring 32 to rotate during rotation, and the annular plug 33 is used to facilitate sealing of the bottom of the furnace hood 4.

[0030] like Figure 4-Figure 6As shown, the air guide mechanism 8 includes a U-shaped tube 81, a telescopic tube 82 and a branch tube 83. The two ends of the horizontal portion of the U-shaped tube 81 pass through two strip grooves 21, and the top end of the U-shaped tube 81 is connected to the inner cavity of the hot air jacket 7, the top end of the telescopic tube 82 is connected to the bottom of the furnace chamber 1 through the branch tube 83, and the bottom end of the telescopic tube 82 is connected to the horizontal portion of the U-shaped tube 81 through the branch tube 83.

[0031] It should be noted that, in the present embodiment, the telescopic tube 82 is a high temperature resistant metal bellows, two telescopic tubes 82 are arranged and symmetrically arranged at the bottom of the furnace chamber 1, and the fan in the furnace chamber 1 introduces the hot air into the telescopic tube 82 through the upper branch pipe 83, and then introduces the hot air into the U-shaped tube 81 through the lower branch pipe 83, so that the hot air can smoothly enter the inner cavity of the hot air jacket 7.

[0032] like Figure 2 and Figure 6-Figure 7 As shown, the clamping mechanism 6 includes a shell 61, a rotating pin 62, a through groove 63, a first screw rod 64, a supporting roller 65 and a limiting member 66. Two through grooves 63 are symmetrically arranged at the top of the shell 61. The rotating pin 62 is connected to the bottom center of the shell 61, and the rotating pin 62 passes through the annular plate 31. One end of the first screw rod 64 passes through the outer wall of the shell 61 and is rotatably connected to the inner wall thereof. The first screw rod 64 is symmetrically provided with opposite threads. Two limiting members 66 are symmetrically mounted on the first screw rod 64, and the limiting members 66 can slide along the through groove 63. The rotating pin 62 is rotatably arranged above the shell 61. The limiting member 66 is slidably connected to the rotating pin 62. The rotating pin 62 is used to support the material body 5, and the material body 5 is arranged between the two limiting members 66.

[0033] It should be noted that, in the present embodiment, the position-limiting member 66 comprises a sliding portion 661, a vertical portion 662, a clamping roller 663 and a transverse portion 664. The sliding portion 661 is slidably connected to the inner cavity of the shell 61, and the sliding portion 661 is threadedly sleeved with the first screw 64. A vertical portion 662 is symmetrically arranged at the top of each sliding portion 661. The vertical portion 662 passes through the through slot 63 and extends upward. A rectangular opening is passed through the vertical portion 662. The clamping roller 663 is rotatably installed in the rectangular opening. The clamping roller 663 protrudes from the rectangular opening and is used to clamp the material body 5. The facing side walls of the two vertical portions 662 near the bottom are connected by a transverse portion 664. A through hole that can slide along the support roller 65 is passed through the transverse portion 664. High-temperature resistant rubber can be installed on the outer sides of the support roller 65 and the clamping roller 663 to increase friction and improve the stability of the material body 5. It should be noted that when the material body 5 is installed between the two limit members 66, the material body 5 is pushed as close to the hot air jacket 7 as possible to ensure that the material body 5 rotates eccentrically when the clamping mechanism 6 rotates, thereby facilitating the material body 5 and the abutment member 10 (such as Figure 3As shown in the figure, the material body 5 can be relatively displaced between the two limit members 66 under the extrusion of the resistance member 10. As the rotation continues, it is convenient for the material body 5 to move back and forth between the two limit members 66, thereby avoiding insufficient baking of the part where the material body 5 contacts the clamping mechanism 6.

[0034] like Figure 11-Figure 14 As shown, Fig.11 The material body 5 is initially clamped. If the horizontal distance between the left side of the material body 5 and the axis of the rotating pin 62 is set to a, the horizontal distance between the right side of the material body 5 and the axis of the rotating pin 62 is set to b, and the horizontal distance between the axis of the rotating pin 62 and the inner circle of the annular ring 101 is set to c, then b is obviously greater than a. In addition, Fig.11 In this state, the left side of the material body 5 is marked as the first side, and the right side is marked as the second side. Since the material body 5 is initially placed close to the annular ring 101, that is, a and c are substantially equal in the initial clamping state; When rotating to Fig.12 In the state, the second side of the material body 5 is in contact with the inner ring of the annular ring 101. If the rotation continues, the second side of the material body 5 will be acted upon by a thrust force, so that the first side of the material body 5 gradually moves away from the annular ring 101. In this process, b decreases continuously, while a increases gradually. When rotating to Fig.14 When b decreases to be equal to c, the material body 5 will not slide relative to the clamping mechanism 6 due to rotation. That is to say, when b=c, as the material body 5 continues to rotate, the values ​​of a and c will remain unchanged during the subsequent rotation. In this state, a>b=c; If in Fig.14 If the rotation continues on this basis, the first side will contact the annular ring 101 again. Since a>c at this time, if the rotation continues after contacting the annular ring 101, the material body 5 will slide relatively along the clamping mechanism 6 again, thereby repeating the previous steps, so that the material body 5 can achieve reciprocating motion back and forth during the self-rotation process.

[0035] like Figure 5 and Fig. 9As shown, the linkage mechanism 9 includes a first motor 91, a driving gear 92, an inner gear ring 93, a driven gear 94, an outer gear ring 95 and a reciprocating assembly. The inner gear ring 93 is connected to the bottom of the annular plate 31 through a plurality of circumferentially distributed connecting rods. The first motor 91 is installed on the top of the chassis 24. The driving gear 92 is driven by the first motor 91, and the driving gear 92 is meshed with the inner gear ring 93. The driven gear 94 is coaxially connected to the rotating pin 62. The outer gear ring 95 is meshed with the driven gear 94, and a horizontal column is connected between the outer gear ring 95 and the column 23. The first motor 91 is connected to the air guide mechanism 8 through a reciprocating assembly. The reciprocating assembly is used to drive the hot air jacket 7 to reciprocate and rise when the first motor 91 is running.

[0036] It should be noted that the distance between the inner gear ring 93 and the annular plate 31 is greater than the distance between the driven gear 94 and the annular plate 31, ensuring that the annular plate 31 will not collide with the inner gear ring 93 and the driving gear 92 when driving the driven gear 94 to revolve. Starting the first motor 91 to drive the driving gear 92 to rotate facilitates driving the inner gear ring 93 to drive the annular plate 31 to rotate synchronously at a low speed, so that the rotating pin 62 drives the driven gear 94 to revolve. During the revolution, the driven gear 94 is meshed with the fixed outer gear ring 95, so that it can realize self-rotation during the revolution. At the same time, when the first motor 91 is running, the linkage reciprocating assembly causes the hot air jacket 7 to reciprocate and rise and fall.

[0037] like Figure 3 and Fig.10 As shown, the resistance member 10 includes an annular ring 101 and support rods 102. Several support rods 102 are distributed circumferentially along the inner wall of the furnace hood 4. One end of the support rod 102 away from the furnace hood 4 is connected to the annular ring 101, and the material body 5 is located on the inner side of the annular ring 101.

[0038] It should be noted that after the material body 5 is installed on the clamping mechanism 6, the side of the material body 5 away from the furnace chamber 1 should be as close to the inner circle of the annular ring 101 as possible to ensure that when the material body 5 rotates eccentrically, the side away from the annular ring 101 can come into contact with the annular ring 101 when it deflects in the direction away from the furnace chamber 1.

[0039] like Figure 4 , Figure 6 and Fig. 9 As shown, the reciprocating assembly includes a reciprocating screw 96, an extension column 97, a sprocket 98 and a chain 99. The extension column 97 is connected to the air guide mechanism 8. The reciprocating screw 96 passes through the bottom of the support tube 22 and extends to its inner cavity. The extension column 97 is threadedly connected to the reciprocating screw 96. The two sprockets 98 are respectively installed on the rotating shaft of the first motor 91 and the reciprocating screw 96, and the chain 99 is mounted on the two sprockets 98.

[0040] It should be noted that when the first motor 91 is started, it drives one of the sprockets 98 to rotate, and the chain 99 transmission will cause the reciprocating screw 96 connected to the other sprocket 98 to rotate. In this embodiment, only the part of the reciprocating screw 96 located in the support tube 22 is provided with a screw thread, and the part that passes through the bottom of the support tube 22 and extends to the outside is a smooth part. The smooth part is rotatably connected to the bottom of the support tube 22 through a ball bearing. When the reciprocating screw 96 rotates, it drives the extension column 97 to reciprocate and rise and fall, and the extension column 97 drives the U-shaped tube 81 to move synchronously, thereby driving the hot air jacket 7 to reciprocate and rise and fall.

[0041] like Figure 2-Figure 3 As shown, the lifting mechanism 11 includes a square tube 111, a second motor 112, a second screw 113, a moving part 114 and a connecting frame 115. The square tube 111 is arranged in the furnace cavity 1, and its top end passes through the top of the furnace cavity 1. The second motor 112 is installed in the square tube 111, and the output end of the second motor 112 is connected to the second screw 113. The moving part 114 is plugged into the square tube 111, and the moving part 114 is threadedly sleeved with the second screw 113. The top of the square tube 111 is connected to the connecting frame 115, and the connecting frame 115 is installed on the top of the furnace hood 4.

[0042] It should be noted that the bottom end of the square tube 111 is connected to the lower surface of the furnace chamber 1, the cross-section of the square tube 111 is a rectangular structure, the outer cross-section of the moving part 114 is a rectangular structure, the inner cross-section is a circular structure, and the inner side wall of the moving part 114 is provided with an internal thread compatible with the second screw 113, and the second motor 112 is a servo motor that can control the rotation direction (this is the prior art and will not be elaborated here). After the moving part 114 is plugged into the square tube 111, the rotational freedom is limited, so that when the second screw 113 rotates, the moving part 114 can drive the furnace hood 4 to rise or fall through the connecting frame 115. In this embodiment, by controlling the number of rotations of the second screw 113 not to exceed the threshold, it is ensured that the moving part 114 will not be separated from the square tube 111 and the second screw 113.

[0043] An embodiment of the present invention provides a working method of a wind power generation blade sandwich material baking furnace, comprising the following steps: Step 1: lift the furnace cover 4 by using the lifting mechanism 11, support and clamp the material body 5 by using the clamping mechanism 6, and then control the furnace cover 4 to descend and reset, so that a closed baking area is formed between the furnace cover 4, the blocking member 3 and the furnace cavity 1; Step 2: Use the air guide mechanism 8 to guide the hot air generated by the furnace chamber 1 into the hot air jacket 7, and finally blow the hot air evenly toward the material body 5 through the air outlet 71; Step 3: Start the linkage mechanism 9 to drive the clamping mechanism 6 and the material body 5 to revolve, and make them rotate during the revolution. Use the abutment 10 to make the self-rotating material body 5 slide along the clamping mechanism 6 adaptively, so that the material body 5 can be fully and evenly contacted with the hot air to achieve uniform baking. Step 4: After baking is completed, the lifting mechanism 11 is started to lift the furnace cover 4 again, and the material body 5 on the clamping mechanism 6 can be taken out in sequence.

[0044] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A baking furnace for sandwich materials of wind turbine blades, comprising a furnace chamber (1) for conveying hot air, characterized in that: The furnace cavity (1) is provided with a support member (2) at the bottom, a blocking member (3) is sleeved on the support member (2), a furnace cover (4) is sleeved on the blocking member (3) and the furnace cavity (1), and a clamping mechanism (6) for clamping a material body (5) is installed on the blocking member (3), a hot air jacket (7) with air outlet holes (71) is slidably sleeved on the outside of the furnace cavity (1), an air guide mechanism (8) is installed between the hot air jacket (7) and the furnace cavity (1), and a connecting member (4) is installed on the support member (2). The invention relates to a driving mechanism (9), wherein the linkage mechanism (9) is used to drive the clamping mechanism (6) to rotate during the revolution, and to drive the clamped material body (5) to rotate eccentrically during the rotation. The linkage mechanism (9) is also used to drive the hot air jacket (7) to reciprocate and lift. The inner wall of the furnace cover (4) is installed with a resistance member (10). The resistance member (10) is used to push the sandwich material body (5) to slide adaptively when the sandwich material body (5) rotates eccentrically. A lifting mechanism (11) is installed between the furnace cavity (1) and the furnace cover (4).

2. A wind turbine blade sandwich material baking furnace according to claim 1, characterized in that: The support member (2) comprises a support tube (22) with strip grooves (21), columns (23) and a bottom plate (24); two strip grooves (21) are provided through the tube wall of the support tube (22) in the height direction; the support tube (22) is fixedly mounted at the bottom of the furnace cavity (1); the outer cross-sections of the support tube (22) and the furnace cavity (1) are equal; a plurality of columns (23) are circumferentially connected to the bottom of the support tube (22); and the bottom plate (24) is connected to the bottom ends of the columns (23).

3. A baking furnace for sandwich materials of wind turbine blades according to claim 2, characterized in that: The sealing member (3) comprises an annular plate (31), a sleeve ring (32), an annular plug (33) and a support rod (34); the annular plate (31) is rotatably mounted on the outer cylinder wall of the support cylinder (22) near the bottom end; the sleeve ring (32) is rotatably mounted on the annular plate (31), and the bottom of the sleeve ring (32) is connected to the top of the bottom plate (24) via the support rod (34); the annular plug (33) is mounted on the sleeve ring (32), and the outer ring of the annular plug (33) is in contact with the inner wall of the furnace hood (4) near the bottom end.

4. A wind turbine blade sandwich material baking furnace according to claim 2, characterized in that: The air guide mechanism (8) comprises a U-shaped tube (81), a telescopic tube (82) and a branch tube (83); the two ends of the horizontal portion of the U-shaped tube (81) are arranged to pass through two strip grooves (21); the top end of the U-shaped tube (81) is connected to the inner cavity of the hot air jacket (7); the top end of the telescopic tube (82) is connected to the bottom of the furnace cavity (1) through the branch tube (83); and the bottom end of the telescopic tube (82) is connected to the horizontal portion of the U-shaped tube (81) through the branch tube (83).

5. The wind turbine blade sandwich material baking furnace according to claim 3, characterized in that: The clamping mechanism (6) comprises a shell (61), a rotating pin (62), a through groove (63), a first screw rod (64), a supporting roller (65) and a limiting member (66); the two through grooves (63) are symmetrically arranged at the top of the shell (61); the rotating pin (62) is connected to the bottom center of the shell (61), and the rotating pin (62) is arranged to penetrate the annular plate (31); one end of the first screw rod (64) penetrates the outer wall of the shell (61) and is rotatably connected to the inner wall thereof; the first screw rod (64) is symmetrically provided with opposite threads; the two limiting members (66) are symmetrically sleeved on the first screw rod (64), and the limiting members (66) can slide along the through groove (63); the rotating pin (62) is rotatably arranged above the shell (61); the limiting member (66) is slidably sleeved with the rotating pin (62); the rotating pin (62) is used to support the material body (5), and the material body (5) is arranged between the two limiting members (66).

6. A baking furnace for sandwich materials of wind turbine blades according to claim 5, characterized in that: The linkage mechanism (9) comprises a first motor (91), a driving gear (92), an inner gear ring (93), a driven gear (94), an outer gear ring (95) and a reciprocating assembly, wherein the inner gear ring (93) is connected to the bottom of the annular plate (31) via a plurality of circumferentially distributed connecting rods, the first motor (91) is mounted on the top of the chassis (24), the driving gear (92) is driven by the first motor (91), and the driving gear (92) is meshed with the inner gear ring (93), the driven gear (94) is coaxially connected to the rotating pin (62), the outer gear ring (95) is meshed with the driven gear (94), and a cross column is connected between the outer gear ring (95) and the column (23), the first motor (91) is connected to the air guide mechanism (8) via the reciprocating assembly, and the reciprocating assembly is used to drive the hot air jacket (7) to reciprocate and rise and fall when the first motor (91) is running.

7. A wind turbine blade sandwich material baking furnace according to claim 1, characterized in that: The resisting member (10) comprises an annular ring (101) and support rods (102), wherein a plurality of the support rods (102) are distributed circumferentially along the inner wall of the furnace cover (4), and one end of the support rod (102) away from the furnace cover (4) is connected to the annular ring (101), and the material body (5) is located in the inner side direction of the annular ring (101).

8. The wind turbine blade sandwich material baking furnace according to claim 6, characterized in that: The reciprocating assembly comprises a reciprocating screw rod (96), an extension column (97), a sprocket wheel (98) and a chain (99); the extension column (97) is connected to the air guide mechanism (8); the reciprocating screw rod (96) passes through the bottom of the support tube (22) and extends to the inner cavity thereof; the extension column (97) is threadedly sleeved with the reciprocating screw rod (96); the two sprocket wheels (98) are respectively mounted on the rotating shaft of the first motor (91) and the reciprocating screw rod (96); and the chain (99) is sleeved on the two sprocket wheels (98).

9. A wind turbine blade sandwich material baking furnace according to claim 1, characterized in that: The lifting mechanism (11) comprises a square tube (111), a second motor (112), a second screw rod (113), a moving part (114) and a connecting frame (115); the square tube (111) is arranged in the furnace cavity (1), and the top end thereof passes through the top of the furnace cavity (1); the second motor (112) is installed in the square tube (111), and the output end of the second motor (112) is connected to the second screw rod (113); the moving part (114) is plugged into the square tube (111), and the moving part (114) is threadedly sleeved with the second screw rod (113); the top end of the square tube (111) is connected to the connecting frame (115), and the connecting frame (115) is installed on the top of the furnace cover (4).

10. A working method of a baking furnace for sandwich materials of wind turbine blades according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: using the lifting mechanism (11) to lift the furnace cover (4), supporting and clamping the material body (5) through the clamping mechanism (6), and then controlling the furnace cover (4) to descend and reset, so that a closed baking area is formed between the furnace cover (4), the sealing member (3) and the furnace cavity (1); Step 2: using the air guide mechanism (8) to guide the hot air generated by the furnace chamber (1) into the hot air jacket (7), and finally blowing the hot air evenly toward the material body (5) through the air outlet (71); Step 3: Start the linkage mechanism (9) to drive the clamping mechanism (6) and the material body (5) to revolve, and make them rotate during the revolving process, and use the abutment member (10) to make the self-rotating material body (5) slide along the clamping mechanism (6) in an adaptive manner, so that the material body (5) can be fully and evenly contacted with the hot air, thereby achieving uniform baking; Step 4: After the baking is completed, the lifting mechanism (11) is started to lift the furnace cover (4) again, and the material body (5) on the clamping mechanism (6) can be taken out in sequence.

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