A kind of wind power blade bolt sleeve manufacturing heat treatment device

Abstract

The present application relates to bolt sleeve manufacturing technical field, and disclose a kind of heat treatment device for wind power blade bolt sleeve manufacturing, including heat treatment box, heat treatment box top is provided with support frame, liftable connecting rod is installed on support frame;Connecting rod's side wall is fixedly connected with the placing frame for placing bolt sleeve;Rotary drive assembly for driving connecting rod rotation is equipped on support frame;Cooling mechanism is equipped in heat treatment box, and it is arranged around connecting rod.This application, by setting the cross structure distribution of placing frame, and bolt sleeve is placed in its placing hole, so that the workpiece of upper and lower layers is mutually staggered in space.This design effectively solves the problem of mutual shielding of multilayer workpiece during heat treatment, ensures that each bolt sleeve, especially the workpiece located in the lower layer, can be fully exposed to cooling airflow or medium, so as to realize the uniformity of overall heat treatment, improve the consistency of product quality.

Description

Technical Field

[0001] This invention relates to the field of bolt sleeve manufacturing technology, and in particular to a heat treatment apparatus for manufacturing bolt sleeves for wind turbine blades. Background Technology

[0002] Bolt: A mechanical part, a cylindrical threaded fastener fitted with a nut. Heat treatment refers to a metal heat treatment process in which materials are heated, held at a certain temperature, and cooled in a solid state to obtain the desired structure and properties.

[0003] A search revealed a heat treatment device for bolt manufacturing, disclosed in Publication No. CN220555706U. The device includes a heat treatment chamber, a support frame fixedly mounted on the top of the chamber, and a bearing mechanism at the bottom of the support frame. The bearing mechanism includes a second motor fixedly mounted on the top of the support frame, a support plate fixedly mounted on the bottom of the support frame, a threaded rod connected to the support plate and the support frame via a bearing, a fixed plate threadedly mounted on the outside of the threaded rod, a square rod connected to the top of the fixed plate via a bearing, a third gear fixedly mounted on the outside of the square rod, a fourth gear on one side of the third gear, the third gear meshing with the fourth gear, and a connecting rod fixedly connected to the bottom of the fourth gear. The beneficial effects of this invention are: rapid heat dissipation of the bolt body, improved efficiency of heat treatment, diverse heat treatment functions, high practicality, and convenient and quick bolt removal.

[0004] In the aforementioned existing technical solutions, during the cooling stage, bolts are densely placed on the fixed rods of the support frame. A unidirectional horizontal airflow cannot penetrate and evenly cover all bolts, especially those located on the leeward side of the airflow and blocked by bolts in front, resulting in a significant reduction in their cooling effect. This leads to inconsistent cooling rates for bolts in different locations within the chamber, and even for different faces of the same bolt.

[0005] Therefore, we propose a heat treatment device for manufacturing wind turbine blade bolt sleeves. Summary of the Invention

[0006] The present invention mainly addresses the technical problems existing in the prior art and provides a heat treatment device for manufacturing wind turbine blade bolt sleeves.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a heat treatment device for manufacturing wind turbine blade bolt sleeves, comprising a heat treatment box, a support frame provided on the top of the heat treatment box, and a liftable connecting rod installed on the support frame; a placement frame for placing bolt sleeves is fixedly connected to the side wall of the connecting rod; a rotation drive assembly for driving the connecting rod to rotate is provided on the support frame; and a cooling mechanism arranged around the connecting rod is provided inside the heat treatment box.

[0008] Preferably, there are at least two placement frames; the placement frames are provided with multiple placement holes for inserting bolt sleeves.

[0009] Preferably, a mounting plate is fixedly connected to the top of the connecting rod; the device also includes a hydraulic cylinder fixed to the support frame, with the end of the piston rod of the hydraulic cylinder connected to the mounting plate.

[0010] Preferably, the rotary drive assembly includes a motor fixed to a support frame; the output shaft of the motor is connected to a bevel gear one, which meshes with a bevel gear two; the bevel gear two is fixedly connected to a vertical rotating shaft, the bottom end of which is fixedly connected to the top of the cylinder body of the hydraulic cylinder.

[0011] Preferably, the side wall of the connecting rod is provided with two sets of placement frames spaced apart vertically, each set containing two placement frames arranged in a cross shape.

[0012] Preferably, at least one limiting guide rod is also fixedly connected to the mounting plate, the limiting guide rod extends vertically upward and passes through the support frame to slide with it.

[0013] This invention provides a heat treatment apparatus for manufacturing wind turbine blade bolt sleeves. It has the following beneficial effects: 1. This heat treatment apparatus for manufacturing wind turbine blade bolt sleeves utilizes a cross-shaped arrangement of placement frames, with the bolt sleeves placed in their placement holes, ensuring that the upper and lower layers of workpieces are spatially staggered. This design effectively solves the problem of mutual obstruction between multiple layers of workpieces during heat treatment, ensuring that each bolt sleeve, especially those in the lower layer, is fully exposed to the cooling airflow or medium. This achieves uniformity in overall heat treatment and improves the consistency of product quality.

[0014] 2. This heat treatment device for manufacturing wind turbine blade bolt sleeves uses a hydraulic cylinder to drive the lifting and lowering of the placement frame and the workpiece as a whole, facilitating the placement of the workpiece into the heat treatment chamber for heating or lifting it to a suitable position for cooling. Simultaneously, a motor drives a bevel gear set to rotate the entire supporting mechanism horizontally. The combination of lifting and rotation functions allows the workpiece to be adjusted to the optimal cooling position during the cooling stage, while also ensuring that all surfaces receive cooling airflow evenly during rotation, improving cooling efficiency and uniformity, and shortening the production cycle.

[0015] 3. This heat treatment device for manufacturing wind turbine blade bolt sleeves utilizes a surround cooling system consisting of a cooler, an air outlet pipe, and a U-shaped manifold, with multiple air outlets on the side wall of the manifold. When the workpiece-bearing frame rotates in the central area of ​​the manifold, cool air is simultaneously and evenly blown onto the workpiece from multiple directions. This active, surround, multi-point cooling method, compared to unilateral or one-way cooling, can remove heat from the workpiece more quickly, achieving rapid and uniform cooling after quenching or tempering, thus meeting the performance requirements of wind turbine bolt sleeves.

[0016] 4. This heat treatment device for manufacturing wind turbine blade bolt sleeves allows for easy loading and unloading of workpieces from above. The switching between heating and cooling positions is achieved via hydraulic lifting, resulting in a high degree of automation. Combined with a cross-shaped placement frame and surrounding cooling, processing efficiency is high. The entire device is highly integrated, easy to operate, and highly practical, making it suitable for mass production of wind turbine blade bolt sleeves. Attached Figure Description

[0017] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0019] Figure 1 This is a three-dimensional schematic diagram of the structure of the present invention; Figure 2 This is a three-dimensional schematic diagram of the structure of the present invention; Figure 3 This is a schematic diagram showing the detailed structure of the manifold of the present invention; Figure 4 This is a top view of the placement frame structure of the present invention.

[0020] Legend: 1. Heat treatment chamber; 2. Support frame; 3. Fixing plate; 301. Air cooler; 302. Air outlet duct; 303. Combining pipe; 304. Air outlet; 4. Motor; 401. Bevel gear one; 402. Bevel gear two; 403. Rotating shaft; 5. Limiting guide rod; 501. Stop block; 6. Hydraulic cylinder; 601. Mounting plate; 7. Connecting rod; 701. Placement frame; 702. Placement hole. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: A heat treatment apparatus for manufacturing wind turbine blade bolt sleeves, such as... Figures 1-4 As shown, the device includes a heat treatment chamber 1. A U-shaped support frame 2 is fixedly connected to the center of the top wall of the heat treatment chamber 1. A motor 4 is fixedly connected to the top wall of the support frame 2. The output shaft of the motor 4 is located on one side and is fixedly connected to a bevel gear 401. A bevel gear 402 is meshed on the bevel gear 401. A rotating shaft 403 is fixedly connected to the bottom wall of the bevel gear 402. The rotating shaft 403 passes through the top wall of the support frame 2 and is rotatably connected to the top wall of the support frame 2. A hydraulic cylinder 6 is fixedly connected to the bottom of the rotating shaft 403. A mounting plate 601 is fixedly connected to the extended end of the hydraulic cylinder 6. A connecting rod 7 is fixedly connected to the center of the bottom wall of the mounting plate 601. Two sets of placement frames 701 are fixedly connected to the two side walls of the connecting rod 7. The two placement frames 701 are fixedly connected to the side walls of the connecting rod 7 in a cross shape. On the surface, the placement frames 701 are arranged in a cross shape to prevent the bolt sleeves placed in the inner cavity of the upper placement frame 701 from obstructing the threaded sleeves placed in the inner cavity of the lower placement frame 701. Multiple placement holes 702 are evenly spaced on the placement frames 701, and multiple bolt sleeves can be placed through the multiple placement holes 702. A fixing plate 3 is fixedly connected to the outer wall of one side of the heat treatment box 1. A cold air fan 301 is fixedly connected to the top wall of the fixing plate 3. The blowing end of the cold air fan 301 is connected to an air outlet pipe 302. The air outlet pipe 302 passes through the side wall of the heat treatment box 1 and is located in the inner cavity of the heat treatment box 1. The blowing end of the air outlet pipe 302 is connected to a collecting pipe 303. The collecting pipe 303 has a U-shaped structure. Multiple air outlets 304 are connected to the wall opposite the collecting pipe 303. The blowing end of the air outlet 304 blows towards the placement frame 701.

[0023] Example 1: A heat treatment apparatus for manufacturing wind turbine blade bolt sleeves, such as... Figures 1-4As shown, the device includes a heat treatment chamber 1. A U-shaped support frame 2 is fixedly connected to the center of the top wall of the heat treatment chamber 1. A motor 4 is fixedly connected to the top wall of the support frame 2. The output shaft of the motor 4 is located on one side and is fixedly connected to a bevel gear 401. A bevel gear 402 is meshed on the bevel gear 401. A rotating shaft 403 is fixedly connected to the bottom wall of the bevel gear 402. The rotating shaft 403 passes through the top wall of the support frame 2 and is rotatably connected to the top wall of the support frame 2. A hydraulic cylinder 6 is fixedly connected to the bottom of the rotating shaft 403. A mounting plate 601 is fixedly connected to the extended end of the hydraulic cylinder 6. A connecting rod 7 is fixedly connected to the center of the bottom wall of the mounting plate 601. Two sets of placement frames 701 are fixedly connected to the two side walls of the connecting rod 7. The two placement frames 701 are fixedly connected to the side walls of the connecting rod 7 in a cross shape. On the surface, the placement frames 701 are arranged in a cross shape to prevent the bolt sleeves placed in the inner cavity of the upper placement frame 701 from obstructing the threaded sleeves placed in the inner cavity of the lower placement frame 701. Multiple placement holes 702 are evenly spaced on the placement frames 701, and multiple bolt sleeves can be placed through the multiple placement holes 702. A fixing plate 3 is fixedly connected to the outer wall of one side of the heat treatment box 1. A cold air fan 301 is fixedly connected to the top wall of the fixing plate 3. The blowing end of the cold air fan 301 is connected to an air outlet pipe 302. The air outlet pipe 302 passes through the side wall of the heat treatment box 1 and is located in the inner cavity of the heat treatment box 1. The blowing end of the air outlet pipe 302 is connected to a collecting pipe 303. The collecting pipe 303 has a U-shaped structure. Multiple air outlets 304 are connected to the wall opposite the collecting pipe 303. The blowing end of the air outlet 304 blows towards the placement frame 701.

[0024] Limiting guide rods 5 are fixedly connected to the top walls of the front and rear ends of the mounting plate 601 and to both sides of the extended end of the hydraulic cylinder 6. The two limiting guide rods 5 pass through the support frame 2 and can slide on the support frame 2. Stop blocks 501 are fixedly connected to the top walls of the two limiting guide rods 5. Through the cooperation of the two limiting guide rods 5, the mounting plate 601 drives the multiple placement frames 701 on the connecting rod 7 to move up and down more stably.

[0025] Working principle of the invention: In use, the operator first inserts the bolt sleeves of the multiple wind turbine blades to be processed into the placement holes 702 on each placement frame 701. Since the placement frames 701 are distributed in a cross shape around the connecting rod 7, and each layer of placement frames 701 is staggered, all the bolt sleeves are spatially staggered, avoiding obstruction between upper and lower workpieces.

[0026] During use, after the components are assembled, the hydraulic cylinder 6 is activated. The extended end of the hydraulic cylinder 6 retracts, causing all the placement frames 701 and bolt sleeves to descend via the mounting plate 601 and connecting rod 7, allowing them to fully enter the heating station of the heat treatment chamber 1 for heating and heat preservation. During this process, the two limiting guide rods 5 fixed on the mounting plate 601 slide down accordingly, cooperating with the support frame 2 to ensure the stability of the entire lifting and lowering process of the bearing mechanism.

[0027] During use, after the heating and heat preservation processes are completed, the extended end of the hydraulic cylinder 6 extends, lifting the supporting mechanism and its bolt sleeves to a suitable height. Then, the cooling fan 301 is started, and cold air is delivered through the air outlet 302 to the U-shaped surrounding collecting pipe 303, finally being evenly blown out from multiple air outlets 304 on the side wall of the collecting pipe 303. Simultaneously, the motor 4 is started, and the motor 4 drives the rotating shaft 403 to rotate through the meshing of bevel gear one 401 and bevel gear two 402, thereby driving the entire supporting mechanism (including the hydraulic cylinder 6, mounting plate 601, connecting rod 7, and placement frame 701) to slowly rotate in the horizontal plane. This ensures that all bolt sleeves are evenly cooled by the cold air from the surrounding air outlets 304, and the rotation of the bolt sleeves further ensures the uniformity of circumferential cooling, thus achieving efficient and uniform forced air cooling, significantly improving the quality and efficiency of heat treatment.

[0028] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A heat treatment apparatus for manufacturing wind turbine blade bolt sleeves, comprising a heat treatment chamber (1), characterized in that: The heat treatment box (1) is provided with a support frame (2) on top, and a liftable connecting rod (7) is installed on the support frame (2); a placement frame (701) for placing bolt sleeves is fixedly connected to the side wall of the connecting rod (7); a rotation drive assembly for driving the connecting rod (7) to rotate is provided on the support frame (2); a cooling mechanism is provided inside the heat treatment box (1) surrounding the connecting rod (7).

2. The heat treatment apparatus for manufacturing wind turbine blade bolt sleeves according to claim 1, characterized in that: The number of placement frames (701) is at least two; the placement frames (701) are provided with a plurality of placement holes (702) for inserting bolt sleeves.

3. The heat treatment apparatus for manufacturing wind turbine blade bolt sleeves according to claim 1, characterized in that: The top of the connecting rod (7) is fixedly connected to the mounting plate (601); the device also includes a hydraulic cylinder (6) fixed on the support frame (2), and the piston rod end of the hydraulic cylinder (6) is connected to the mounting plate (601).

4. The heat treatment apparatus for manufacturing wind turbine blade bolt sleeves according to claim 3, characterized in that: The rotary drive assembly includes a motor (4) fixed on a support frame (2); the output shaft of the motor (4) is connected to a bevel gear one (401), the bevel gear one (401) meshes with a bevel gear two (402); the bevel gear two (402) is fixedly connected to a vertical rotating shaft (403), the bottom end of the rotating shaft (403) is fixedly connected to the top of the cylinder body of the hydraulic cylinder (6).

5. The heat treatment apparatus for manufacturing wind turbine blade bolt sleeves according to claim 1, characterized in that: The cooling mechanism includes a cooler (301) located outside the heat treatment chamber (1); the cooler (301) is connected to a manifold (303) inside the heat treatment chamber (1) via an air outlet pipe (302); the manifold (303) has a U-shaped structure and multiple air outlets (304) on its inner side wall.

6. The heat treatment apparatus for manufacturing wind turbine blade bolt sleeves according to claim 2, characterized in that: The side wall of the connecting rod (7) is provided with two sets of placement frames (701) spaced apart vertically, each set containing two placement frames (701) arranged in a cross shape.

7. The heat treatment apparatus for manufacturing wind turbine blade bolt sleeves according to claim 3, characterized in that: At least one limiting guide rod (5) is also fixedly connected to the mounting plate (601). The limiting guide rod (5) extends vertically upward and passes through the support frame (2) to slide with it.

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