A modular coil end forming machine for high-power offshore wind power

Abstract

The utility model discloses a kind of modular coil end forming machines for high-power offshore wind power, belong to wind power coil technical field.A kind of modular coil end forming machines for high-power offshore wind power, including lower shaft seat and upper shaft platform, the lower shaft seat and the upper shaft platform side are uniformly provided with forming hole, wherein, the inside of lower shaft seat and upper shaft platform is all set to hollow structure, the bottom of upper shaft platform is provided with backing pad, and backing pad is set to multilayer structure, compression spring is set between the backing pad and lower shaft seat.To solve the problem that the end of traditional coil is more unique in shape and is mostly twisted, manual rotation is needed during processing, but repeated correction is needed after processing, which is very time-consuming and laborious, high-precision trajectory control and flexible pressure application enable the end of the coil to achieve the required accuracy shape and angle in one operation, eliminating the need for repeated correction in traditional processes.

Description

Technical Field

[0001] This utility model relates to the field of wind power coil technology, specifically a modular coil end forming machine for high-power offshore wind power. Background Technology

[0002] Currently, in the wind power field, the stator size of generators is often relatively large, and the structure of the stator end is relatively complex. Traditional coil ends often adopt a unique twisted structure, so manual rotation is required during processing. However, after processing and forming, repeated correction is required, which is extremely time-consuming and labor-intensive. Utility Model Content

[0003] The purpose of this invention is to provide a modular coil end forming machine for high-power offshore wind power. The high-precision trajectory control and flexible pressure application enable the coil end to achieve the precise shape and angle required by the design in one operation, eliminating the repeated correction steps that are indispensable in traditional processes, and solving the problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a modular coil end forming machine for high-power offshore wind power, comprising a lower shaft seat and an upper shaft platform, wherein forming holes are provided on one side of both the lower shaft seat and the upper shaft platform, wherein the interior of both the lower shaft seat and the upper shaft platform is configured as a hollow structure, a pad is provided at the bottom of the upper shaft platform, and the pad is configured as a multi-layer structure, a compression spring is provided between the pad and the lower shaft seat, and a torsion bar is provided inside the lower shaft seat, the torsion bar being rotatably connected to the lower shaft seat through a guide sleeve.

[0005] Through the above scheme, the multi-layer pads are rigidly connected by locking rods, which enhances the rigidity and stability of the overall structure and ensures that the multi-layer structure can move synchronously and stably without tilting or deformation when transmitting torsional force and downward pressure.

[0006] Preferably, the bottom of the torsion bar is configured as a trapezoidal structure, and the top of the torsion bar is provided with a helical tooth. The helical tooth is connected to the torsion bar by bolts, and the outer surface of the helical tooth is provided with a helical groove. A return spring is provided on the outer side of the helical tooth.

[0007] Preferably, the compression spring has a guide post inside, and the pad and the guide post are connected by telescopic connection.

[0008] Through the above scheme, the combination of compression spring and guide post constitutes the core elastic pressure system. It can provide cushioning and absorb impact during the forming process, and automatically adjust the applied pressure according to the deformation resistance of the coil material, avoiding rigid impacts that could cause damage to the wire insulation, deformation of the copper busbar, or destruction of the internal structure.

[0009] Preferably, the pads are connected by a locking rod, and the upper shaft platform is provided with a shaft inside.

[0010] Preferably, the bottom of the pad is provided with a rotating groove, wherein a gear shaft is provided on the inner side of the rotating groove, the gear shaft and the pad are configured as an integral structure, and the gear shaft and the helical teeth mesh through the rotating groove.

[0011] Preferably, the pad is telescopically connected to the upper shaft platform via a shaft, and a positioning pin is provided inside the shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model abandons the inefficient method of manually rotating the coil end. Through mechanical drive and precision transmission mechanism, it realizes the automation of coil end torsion forming, greatly improves the processing speed, significantly shortens the single-piece production cycle, and meets the high-efficiency requirements of mass production of high-power offshore wind turbine coils.

[0014] 2. In this invention, the shape of the spiral groove on the spiral tooth is key to determining the motion trajectory of the pad. By precisely designing and manufacturing the spiral groove, the torsion angle applied to the end of the coil and the accompanying downward stroke can be strictly controlled. This precise control of the composite motion is unparalleled by manual operation. The high-precision trajectory control and flexible pressure application enable the end of the coil to achieve the precise shape and angle required by the design in a single operation, eliminating the repeated correction steps that are indispensable in traditional processes. Attached Figure Description

[0015] Figure 1 This is the overall front view of the present invention;

[0016] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the lower bearing structure of this utility model.

[0018] In the diagram: 1. Lower shaft seat; 2. Upper shaft platform; 101. Forming hole; 102. Compression spring; 103. Torsion bar; 1021. Guide post; 1031. Helical gear; 1032. Helical groove; 1033. Return spring; 201. Pad; 202. Shaft; 203. Locking rod; 2011. Gear shaft; 2021. Positioning pin. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] To address the issue that traditional coils often employ a unique twisted structure at the ends, requiring manual rotation during manufacturing and subsequent repeated adjustments after forming—a process that is extremely time-consuming and labor-intensive—please refer to [link / reference needed]. Figure 1-3 The present invention provides the following solution:

[0021] A modular coil end forming machine for high-power offshore wind power includes a lower shaft seat 1 and an upper shaft platform 2. Both the lower shaft seat 1 and the upper shaft platform 2 have forming holes 101 on one side. The interior of both the lower shaft seat 1 and the upper shaft platform 2 is hollow. A pad 201 is provided at the bottom of the upper shaft platform 2, and the pad 201 is a multi-layer structure. A compression spring 102 is provided between the pad 201 and the lower shaft seat 1. A torsion bar 103 is provided inside the lower shaft seat 1, and the torsion bar 103 is rotatably connected to the lower shaft seat 1 through a guide sleeve.

[0022] In this embodiment, since the pads 201 are configured as a multi-layer structure and interconnected by locking rods 203, the movement of the bottom pad 201 will cause all the pads 201 above it to move synchronously. The pads 201 are telescopically connected to the upper shaft platform 2 via shafts 202. The positioning pins 2021 inside the shafts 202 are used to limit the maximum stroke of the pads or provide specific position positioning. When the helical gear 1031 drives the gear shaft 2011 to move, this combined movement forces the multi-layer pads 201 to produce a downward displacement relative to the fixed upper shaft platform 2, and possibly a slight angular adjustment.

[0023] The bottom of the torsion bar 103 is set with a trapezoidal structure, and the top of the torsion bar 103 is set with a helical tooth 1031. The helical tooth 1031 is connected to the torsion bar 103 by bolts. The outer surface of the helical tooth 1031 is set with a helical groove 1032. The outer side of the helical tooth 1031 is set with a return spring 1033. The inside of the compression spring 102 is set with a guide post 1021. The pad 201 is connected to the guide post 1021 by telescopic connection. The pads 201 are connected to each other by a locking rod 203. The inside of the upper shaft platform 2 is set with a shaft 202. The bottom of the pad 201 is set with a rotating groove. The inner side of the rotating groove is set with a gear shaft 2011. The gear shaft 2011 and the pad 201 are set as an integral structure. The gear shaft 2011 and the helical tooth 1031 are meshed through the helical groove 1032. The pad 201 is telescopically connected to the upper shaft platform 2 through the shaft 202. The inside of the shaft 202 is set with a positioning pin 2021.

[0024] In this embodiment, when the torsion bar 103 rotates to a preset angle, the helical gear 1031 drives the pad 201 to a predetermined position. The coil end is formed under precisely controlled torsional force and elastic pressure. After the drive stops, the compressed spring 102 releases its stored elastic potential energy, pushing the pad 201 upward to reset. The reset spring 1033 may also assist the helical gear 1031 or the entire mechanism to return to the initial position. The pad 201 slides upward along the shaft 202, releasing the pressure on the coil. At this time, the precisely formed coil end can be removed.

[0025] The working principle involves placing the modular coil end, typically a pre-formed part that requires final twisting and shaping, into the forming holes 101 corresponding to the lower bearing 1 and upper bearing platform 2. The design of the forming holes 101 ensures the coil is stably clamped in a predetermined position. An external drive mechanism drives the torsion bar 103 to rotate. The torsion bar 103 achieves a stable rotational connection with the lower bearing 1 through a guide sleeve at its bottom. The helical teeth 1031 at the top of the torsion bar 103 rotate together with the torsion bar. The outer surface of the helical teeth 1031 has a special groove 1032. Engaging with the outer surface of the helical teeth 1031 is a gear shaft 2011 located in the rotating groove at the bottom of the pad 201. Since the gear shaft 2011 and the pad 201 are an integral structure, the rotational motion of the helical teeth 1031, through the engagement of the groove 1032 and the gear shaft 2011, forces the gear shaft 2011 to produce a composite motion matching the trajectory of the groove 1032. This motion trajectory is usually not a simple circular motion, but a spiral or specific curved trajectory that may include axial displacement and rotational components.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular coil end forming machine for high-power offshore wind power, characterized in that, The assembly includes a lower bearing seat (1) and an upper bearing platform (2). Both the lower bearing seat (1) and the upper bearing platform (2) have forming holes (101) on one side. The interior of both the lower bearing seat (1) and the upper bearing platform (2) is hollow. A pad (201) is provided at the bottom of the upper bearing platform (2), and the pad (201) is a multi-layer structure. A compression spring (102) is provided between the pad (201) and the lower bearing seat (1). A torsion bar (103) is provided inside the lower bearing seat (1), and the torsion bar (103) is rotatably connected to the lower bearing seat (1) through a guide sleeve.

2. A modular coil end forming machine for high-power offshore wind power according to claim 1, characterized in that: The bottom of the torsion bar (103) is configured as a trapezoidal structure, and the top of the torsion bar (103) is provided with a helical tooth (1031). The helical tooth (1031) is connected to the torsion bar (103) by bolts. The outer surface of the helical tooth (1031) is provided with a helical groove (1032), and a return spring (1033) is provided on the outer side of the helical tooth (1031).

3. A modular coil end forming machine for high-power offshore wind power according to claim 2, characterized in that: The compression spring (102) has a guide post (1021) inside, and the pad (201) is connected to the guide post (1021) by telescopic connection.

4. A modular coil end forming machine for high-power offshore wind power according to claim 2, characterized in that: The pads (201) are connected by locking rods (203), and the upper shaft platform (2) is provided with a shaft (202).

5. A modular coil end forming machine for high-power offshore wind power according to claim 4, characterized in that: The bottom of the pad (201) is provided with a rotating groove, wherein a gear shaft (2011) is provided on the inner side of the rotating groove. The gear shaft (2011) and the pad (201) are configured as an integral structure, and the gear shaft (2011) and the helical teeth (1031) mesh through the rotating groove (1032).

6. A modular coil end forming machine for high-power offshore wind power according to claim 5, characterized in that: The pad (201) is telescopically connected to the upper shaft platform (2) via a shaft (202), and a positioning pin (2021) is provided inside the shaft (202).

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