A heating device for the inner hole of a wind power main shaft

Abstract

The utility model relates to a heating device for the inner hole of wind power main shaft, relates to the technical field of wind power forge heating assembly, including the chassis, the top of chassis is equipped with electric cylinder, the piston end of electric cylinder is connected with the table board, is installed on the table board and is arranged to the rear support plate along Y axle direction, the inside part of rear support plate is arranged with the frame board, is arranged with the telescopic mechanism along X axle direction displacement on the top of rear support plate and frame board, the one end of telescopic mechanism is connected with the front support plate along Y axle direction arrangement away from rear support plate, and the telescopic mechanism is arranged between front support plate and rear support plate, the outside part on front support plate is equipped with electromagnetic induction heating head, and electromagnetic induction heating head is connected with electromagnetic induction heating controller, the utility model solves the problem that needs manual handling in the use process of heating head, alleviates the labor intensity of staff, avoids the waste of labor force, improves the work efficiency of staff, thus has very wide application prospect.

Description

Technical Field

[0001] This utility model relates to the field of wind power forging heating and assembly technology, and specifically discloses a heating device for the inner hole of a wind power main shaft. Background Technology

[0002] Currently, with the trend towards larger wind power products, the inner diameter of the wind turbine main shaft is increasing, requiring larger heaters and increasing assembly difficulty. Therefore, when heaters are needed to heat the inner diameter of the wind turbine main shaft, traditional manual handling is extremely difficult, increasing workload, wasting labor, and posing safety hazards. Furthermore, when the heating head directly contacts the inner diameter, uneven heating and significant temperature differences at different locations can easily cause severe discoloration of the workpiece surface. Therefore, to reduce labor intensity, lower operational safety risks, improve uneven heating of the inner diameter, and prevent discoloration, precise mechanical handling and assembly of the heating head are crucial. Utility Model Content

[0003] To address the problems of difficult manual handling and uneven heating of the inner bore of wind turbine main shafts in current heating heads, this invention provides a heating device for the inner bore of wind turbine main shafts.

[0004] To solve the above problems, this utility model provides the following technical solution: A heating device for the inner bore of a wind turbine main shaft includes a base frame. An electric cylinder is mounted on the top of the base frame. A platform is connected to the piston end of the electric cylinder. A rear support plate arranged along the Y-axis is mounted on the platform. A frame plate is arranged on the inner side of the rear support plate. A telescopic mechanism that moves along the X-axis is arranged on the top of the rear support plate and on the frame plate. The end of the telescopic mechanism away from the rear support plate is connected to a front support plate arranged along the Y-axis. The telescopic mechanism is arranged between the front support plate and the rear support plate. An electromagnetic induction heating head is mounted on the outer side of the front support plate. The electromagnetic induction heating head is connected to an electromagnetic induction heating controller.

[0005] Preferably, each of the four corners of the top of the base frame is equipped with a vertically extendable support rod, which is formed by connecting a hollow thick rod and a thin rod.

[0006] Preferably, the telescopic mechanism includes a telescopic frame A and a telescopic frame B. The two ends of the telescopic frame A are respectively connected to the top of the rear support plate and the front support plate, and the two ends of the telescopic frame B are respectively connected to the bottom of the frame plate and the front support plate. The telescopic frame A is arranged above the telescopic frame B. The telescopic frames A and B are hinged together by a support shaft A and a support shaft B. A screw is rotatably connected to the support shaft A and the support shaft B. A handwheel is installed on the end of the screw near the support shaft A.

[0007] Preferably, the top and bottom of the front support plate, the top of the rear support plate, and the frame plate are all provided with sliding grooves.

[0008] Preferably, the height of the front support plate is smaller than the height of the rear support plate, and the front support plate and the platform are arranged at intervals.

[0009] Preferably, a fixing plate is installed on the electromagnetic induction heating head, and the fixing plate is fastened to the front support plate. The fixing plate is made of 4J36 Invar alloy, a material with low thermal conductivity.

[0010] Preferably, the bottom of the base frame is equipped with casters and pulleys, and two casters and two pulleys are arranged respectively.

[0011] Preferably, a handle is installed on the side of the platform near the rear support plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model, by setting an electric cylinder, allows the platform to be raised and lowered, making it convenient for operators to adjust the height of the heating head to adapt to the height dimensions of different wind turbine main shaft inner holes, greatly improving the ease of use of the equipment and making it highly practical. 2. By setting up a telescopic mechanism, this utility model allows the heating head to extend and retract, thereby adjusting the distance between the heating head and the inner hole of the wind turbine main shaft. This prevents uneven heating caused by the heating head being too close to or in direct contact with the inner hole of the wind turbine main shaft, avoids severe discoloration of the inner hole of the wind turbine main shaft, and reduces damage to the inner hole of the wind turbine main shaft. 3. By incorporating pulleys and casters, this utility model allows the entire device to be moved, solving the problem of manual handling of the heating head during use. This reduces the labor intensity of workers, avoids wasting labor, improves work efficiency, and also prevents safety hazards. Therefore, it has a very broad application prospect. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the overall device structure of this utility model; Figure 2 This is a schematic diagram of the electric cylinder and support rod structure of this utility model; Figure 3 This is a schematic diagram of the rear support plate and sliding groove structure of this utility model; Figure 4 This is a schematic diagram of the telescopic mechanism structure of this utility model; Figure 5 This is a schematic diagram of the front support plate and slide groove structure of this utility model; Figure 6 This is a schematic diagram of the front support plate, rear support plate, and telescopic mechanism of this utility model; Figure 7 This is a schematic diagram of the electromagnetic induction heating head and electromagnetic induction heating controller of this utility model; In the diagram: 1. Base frame, 2. Electric cylinder, 3. Platform, 4. Rear support plate, 5. Frame plate, 6. Telescopic mechanism, 601. Telescopic frame A, 602. Telescopic frame B, 603. Support shaft A, 604. Support shaft B, 605. Screw, 606. Handwheel, 7. Front support plate, 8. Electromagnetic induction heating head, 9. Electromagnetic induction heating controller, 10. Support rod, 11. Slide groove, 12. Fixing plate, 13. Casters, 14. Pulleys, 15. Handle. Detailed Implementation

[0014] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0015] This specific embodiment provides a heating device for the inner bore of a wind turbine main shaft, such as... Figures 1-7As shown, the system includes a base frame 1, with two casters 13 and two pulleys 14 mounted on the bottom of the base frame 1. An electric cylinder 2 is mounted at the center of the top of the base frame 1, and the electric cylinder 2 is equipped with a lifting button, which can be used by the operator to adjust the electric cylinder 2. Each of the four corners of the top of the base frame 1 is equipped with a vertically extendable support rod 10, which is formed by a hollow thick rod and a thin rod connected together. The thick rod is positioned below the thin rod, and the inner diameter of the thick rod is equal to the outer diameter of the thin rod. When the electric cylinder 2 moves up and down, the support rod 10 also moves up and down with the electric cylinder 2. The piston end of the electric cylinder 2 is fixedly connected to a platform 3 by bolts. The support rod 10 is fastened to the platform 3. A rear support plate 4 arranged along the Y-axis is mounted on the platform 3, and a handle 15 is mounted on the side of the platform 3 near the rear support plate 4.

[0016] A frame plate 5 is arranged on the inner side of the rear support plate 4. A telescopic mechanism 6 that moves along the X-axis is arranged on the top of the rear support plate 4 and on the frame plate 5. The end of the telescopic mechanism 6 away from the rear support plate 4 is connected to a front support plate 7 arranged along the Y-axis. The telescopic mechanism 6 is arranged between the front support plate 7 and the rear support plate 4. The height of the front support plate 7 is smaller than that of the rear support plate 4. The front support plate 7 is spaced apart from the platform 3. Sliding grooves 11 are provided on the top and bottom of the front support plate 7, the top of the rear support plate 4, and the frame plate 5.

[0017] The telescopic mechanism 6 includes a telescopic frame A 601 and a telescopic frame B 602. Both telescopic frames A 601 and B 602 are formed by two X-shaped arms hinged together, and the central axis of the X-shaped arms is rotatable. The two ends of telescopic frame A 601 are respectively connected to the top of the rear support plate 4 and the front support plate 7. The X-shaped arms forming telescopic frame A 601 are arranged in a sliding groove 11 on the rear support plate 4 at one end, and can be slidably connected to the sliding groove 11. The other end is fastened to the top of the rear support plate 4. At the same time, the end of the X-shaped arm near the front support plate 7 is fastened to the top of the front support plate 7. The sliding groove 11 of the part is slidably connected, and the other end is fixedly connected to the top of the front support plate 7; the two ends of the B telescopic frame 602 are respectively connected to the bottom of the frame plate 5 and the front support plate 7. The X-shaped support arm that makes up the B telescopic frame 602 is arranged in the sliding groove 11 on the frame plate 5 and slidably connected thereto at one end, and is fixedly connected to the frame plate 5 at the other end. At the same time, the X-shaped support arm near the front support plate 7 is slidably connected to the sliding groove 11 at the bottom of the front support plate 7, and is fixedly connected to the bottom of the front support plate 7 at the other end. Thus, the A telescopic frame 601 and the B telescopic frame 602 can perform telescopic movement. The A telescopic frame 601 is positioned above the B telescopic frame 602. The A telescopic frame 601 and the B telescopic frame 602 are hinged together by an A support shaft 603 and a B support shaft 604 arranged along the Y-axis. The A support shaft 603 and the B support shaft 604 are located at the hinge point of the two X-shaped support arms. A circular hole is provided on the A support shaft 603, and a threaded hole is provided on the B support shaft 604. A screw 605 is rotatably connected to the circular hole of the A support shaft 603 and the threaded hole of the B support shaft 604. A handwheel 606 is installed on the end of the screw 605 near the A support shaft 603. By rotating the handwheel 606, the operator can rotate the screw 605, causing it to rotate and displace along the Z-axis within the threaded hole of the B support shaft 604, thereby allowing the A telescopic frame 601 and the B telescopic frame 602 to extend and retract along the X-axis.

[0018] An electromagnetic induction heating head 8 is installed on the outer side of the front support plate 7. A fixing plate 12 is installed on the electromagnetic induction heating head 8 and is fastened to the front support plate 7. The fixing plate 12 is made of 4J36 Invar alloy, a material with low thermal conductivity. The electromagnetic induction heating head 8 is connected to an electromagnetic induction heating controller 9, which can control the electromagnetic induction heating head 8 to heat the inner hole of the wind turbine main shaft.

[0019] The working principle of this utility model is as follows: Before use, the operator moves the device to the front of the wind turbine main shaft inner hole using the casters 13 and 14. Then, the operator presses the lifting button of the electric cylinder 2 to control the lifting of the electric cylinder 2 to the height corresponding to the inner hole of the wind turbine main shaft. Then, the operator turns the handwheel 606 to make the screw 605 rotate in the round hole of the A bracket shaft 603 and the screw hole of the B bracket shaft 604, thereby adjusting the telescopic mechanism 6, so that the electromagnetic induction heating head 8 is displaced along the X-axis and moved to the optimal heating position in the inner hole of the wind turbine main shaft.

[0020] During use, the staff turns on the electromagnetic induction heating controller 9, which controls the electromagnetic induction heating head 8 to heat up, thereby heating the inner hole of the wind turbine main shaft.

[0021] After use, once the heating operation is complete, the operator turns off the electromagnetic induction heating controller 9, and the electromagnetic induction heating head 8 stops heating. The operator then turns the handwheel 606 to adjust the telescopic mechanism 6, moving the electromagnetic induction heating head 8 away from the inner hole of the wind turbine main shaft. Subsequently, the operator presses the lifting button on the electric cylinder 2 to lower it to its initial height. Then, the operator removes the device for future use. This device solves the problem of manual handling of the heating head during use, reduces the labor intensity of the operators, avoids waste of labor, improves the work efficiency of the operators, and also prevents safety hazards. Therefore, it has a very broad application prospect.

[0022] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heating device for the bore of a windmill main shaft, comprising a base frame (1), characterized in that, An electric cylinder (2) is installed on the top of the base frame (1). The piston end of the electric cylinder (2) is connected to a platform (3). A rear support plate (4) arranged along the Y-axis is installed on the platform (3). A frame plate (5) is arranged on the inner side of the rear support plate (4). A telescopic mechanism (6) that moves along the X-axis is arranged on the top of the rear support plate (4) and on the frame plate (5). The end of the telescopic mechanism (6) away from the rear support plate (4) is connected to a front support plate (7) arranged along the Y-axis. The telescopic mechanism (6) is arranged between the front support plate (7) and the rear support plate (4). An electromagnetic induction heating head (8) is installed on the outer side of the front support plate (7). An electromagnetic induction heating head (8) is connected to an electromagnetic induction heating controller (9).

2. The heating device for the inner hole of the main shaft of a windmill according to claim 1, characterized in that, The base frame (1) has four vertically extendable support rods (10) installed on the top four corners. The support rods (10) are made of a hollow thick rod and a thin rod connected together.

3. The heating device for the inner hole of the wind power main shaft according to claim 1, characterized in that, The telescopic mechanism (6) includes an A telescopic frame (601) and a B telescopic frame (602). The two ends of the A telescopic frame (601) are connected to the top of the rear support plate (4) and the front support plate (7) respectively. The two ends of the B telescopic frame (602) are connected to the bottom of the frame plate (5) and the front support plate (7) respectively. The A telescopic frame (601) is arranged above the B telescopic frame (602). The A support shaft (603) and the B support shaft (604) are hinged between the A telescopic frame (601) and the B telescopic frame (602). The A support shaft (603) and the B support shaft (604) are rotatably connected to the A support shaft (603) and the B support shaft (604). A handwheel (606) is installed on the end of the screw (605) near the A support shaft (603).

4. The heating device for the inner hole of the wind power main shaft according to claim 1, characterized in that, Slide grooves (11) are provided on the top and bottom of the front support plate (7), the top of the rear support plate (4), and the frame plate (5).

5. The heating device for the inner hole of the main shaft of a windmill according to claim 1, characterized in that, The height of the front support plate (7) is smaller than that of the rear support plate (4), and the front support plate (7) and the platform (3) are arranged at intervals.

6. The heating device for the inner hole of the main shaft of a windmill according to claim 1, characterized in that, A fixing plate (12) is installed on the electromagnetic induction heating head (8). The fixing plate (12) is fastened to the front support plate (7). The fixing plate (12) is made of 4J36 Invar alloy, a material with low thermal conductivity.

7. The heating device for the inner hole of the main shaft of a windmill according to claim 1, characterized in that, The bottom of the base frame (1) is equipped with casters (13) and pulleys (14), with two casters (13) and two pulleys (14) respectively.

8. The heating device for the inner hole of the main shaft of a windmill according to claim 1, characterized in that, A handle (15) is installed on the side of the platform (3) near the rear support plate (4).

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