Anti-sucking device for assembling split rotor of direct drive permanent magnet motor

Abstract

The present invention provides an anti-suction device for assembling a split-petrol rotor of a direct-drive permanent magnet motor, which includes a connecting and fixing plate, a top plate, a top rod and a fixing bolt. The connecting and fixing plate is formed by welding a steel plate and a nut. The connecting and fixing plate is fixed on the first rotor petal. The shape of the top plate corresponds to that of the connecting and fixing plate. The top plate is fixed on the second rotor petal. A guide hole is provided on the top plate at a position corresponding to the nut on the connecting and fixing plate. The top rod passes through the nut on the connecting and fixing plate and extends into the guide hole on the top plate. The present invention solves the problem of suction collision during the assembly of a direct-drive permanent magnet split-petrol rotor, can realize the smooth assembly of the rotor petals, and reduce the damage to the product and the harm to the operator caused by collision, suction and other problems during the assembly process.

Description

Technical Field

[0001] The invention belongs to the field of permanent magnet wind power generators, and in particular relates to an anti-attraction device for assembling a split rotor of a direct-drive permanent magnet motor. Background Art

[0002] Since the direct-drive permanent magnet wind turbine rotor has a large outer diameter and is not easy to transport, the use of a split rotor can realize the small unitization of the rotor, which is easy to transport and solves the problem of road transportation. However, the permanent magnet steel has been installed before the split rotor is transported to the project site. During the assembly process of the split rotor, adsorption will occur, which is easy to cause product scrapping and personal injury. Summary of the invention

[0003] The purpose of the present invention is to provide an anti-attraction device for assembling a split rotor of a direct-drive permanent magnet motor, which can solve the problem of attraction and collision during the assembly process of the direct-drive permanent magnet split rotor, realize the smooth assembly of the rotor petals, and reduce the damage to the product and injury to the operator caused by collision, attraction and other problems during the assembly process.

[0004] To achieve the above object, the present invention adopts the following technical solution: an anti-sucking device for assembling a split rotor of a direct-drive permanent magnet motor, comprising a connecting fixing plate, a top plate, a top rod and fixing bolts,

[0005] The connecting and fixing plate is formed by welding a steel plate and a nut, a first through hole is arranged on the steel plate at a position corresponding to the process hole on the first rotor petal, the fixing bolt passes through the first through hole and the process hole on the first rotor petal to fix the connecting and fixing plate on the first rotor petal, and a through hole penetrating the steel plate is arranged on the steel plate below the nut;

[0006] The shape of the top plate corresponds to the shape of the connecting and fixing plate, a second through hole is arranged on the top plate at a position corresponding to the process hole on the second rotor petal, the fixing bolt passes through the second through hole and the process hole on the second rotor petal to fix the top plate on the second rotor petal, and a guide hole is arranged on the top plate at a position corresponding to the nut on the connecting and fixing plate;

[0007] The push rod passes through the nut on the connecting and fixing plate, and the push rod extends into the guide hole on the top plate.

[0008] Furthermore, the push rod is a hexagonal head screw rod, the end of the screw rod is conical, the thread on the push rod matches the nut, and the push rod is screwed into the nut through the thread.

[0009] Furthermore, a hand wheel is provided at the end of the push rod.

[0010] Furthermore, the guide hole is a through hole, and the diameter of the guide hole is smaller than the inner diameter of the nut.

[0011] Furthermore, the nut and the guide hole are respectively arranged on the outside of the first rotor petal and the second rotor petal, and when the push rod extends into the nut and the guide hole, the push rod does not contact the first rotor petal and the second rotor petal.

[0012] Furthermore, the anti-attraction devices are respectively arranged at four corners of adjacent rotor lobes.

[0013] The beneficial effects of the invention are as follows: the invention has a simple structure, ingenious design, and is easy to use. It can solve the problem of attraction and collision during the assembly of direct-drive permanent magnet split-petal rotors, achieve smooth assembly of rotor petals, and reduce damage to the product and injury to operators caused by collision, attraction, and other problems during the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an anti-attraction device for assembling a split rotor of a direct-drive permanent magnet motor according to the present invention;

[0015] Figure 2 yes Figure 1 A connecting fixing plate in the middle;

[0016] Figure 3 yes Figure 1 The top plate in;

[0017] Figure 4 yes Figure 1 The top rod in the

[0018] Figure 5 It is a schematic structural diagram of an anti-attraction device for assembling a split-petal rotor of a direct-drive permanent magnet motor on a rotor petal of the present invention;

[0019] Figure 6 yes Figure 5 A partial enlarged view of the middle anti-suction device.

[0020] Reference numerals: anti-suction device 10; connecting fixing plate 20; nut 21; first through hole 22; top plate 30; second through hole 31; guide hole 32; top rod 40; hand wheel 41; fixing bolt 50; first rotor petal 60; second rotor petal 70. DETAILED DESCRIPTION

[0021] The term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0022] refer to Figures 1 to 6The present invention provides an anti-sucking device for assembling a split-petal rotor of a direct-drive permanent magnet motor, and the anti-sucking device 10 includes a connecting and fixing plate 20, a top plate 30, a top rod 40 and a fixing bolt 50. The connecting and fixing plate 20 is formed by welding a steel plate (not shown) and a nut 21. The connecting and fixing plate 20 is provided with a first through hole 22 at a position corresponding to the process hole on the first rotor petal 60, and the fixing bolt 50 passes through the first through hole 22 and the process hole on the first rotor petal 60 to fix the connecting and fixing plate 20 on the first rotor petal 60. A through hole (not shown) penetrating the steel plate is provided on the steel plate below the nut 21.

[0023] The shape of the top plate 30 corresponds to the shape of the connecting and fixing plate 20, and a second through hole 31 is provided on the top plate 30 at a position corresponding to the process hole on the second rotor petal 70. The fixing bolt 50 passes through the second through hole 31 and the process hole on the second rotor petal 70 to fix the top plate 30 on the second rotor petal 70. A guide hole 32 is provided on the top plate 30 at a position corresponding to the nut 21 on the connecting and fixing plate 20.

[0024] The push rod 40 passes through the nut 21 on the connecting and fixing plate 20 , and the push rod 40 extends into the guide hole 32 on the top plate 30 .

[0025] In one embodiment, the push rod 40 is a hexagonal screw, and the end of the screw is conical so as to be inserted into the guide hole 32. The thread on the push rod 40 matches the nut 21, and the push rod 40 is screwed into the nut 21 through the thread.

[0026] In one embodiment, a hand wheel 41 is disposed at the end of the push rod 40 to facilitate the rotation of the push rod 40 .

[0027] In one embodiment, the guide hole 32 is a through hole, and the diameter of the guide hole 32 is smaller than the inner diameter of the nut 21 , thereby increasing the positioning accuracy.

[0028] In one embodiment, the nut 21 and the guide hole 32 are respectively arranged on the outside of the first rotor petal 60 and the second rotor petal 70. When the push rod 40 extends into the nut 21 and the guide hole 32, the push rod 40 does not contact the first rotor petal 60 and the second rotor petal 70.

[0029] In one embodiment, the anti-sucking devices are respectively arranged at four corners of adjacent rotor lobes.

[0030] The rotor petal assembly principle of the present invention is as follows: a top plate is installed at the four corners of a rotor petal, four connecting and fixing plates are installed at corresponding positions on another adjacent rotor petal, and a push rod is screwed into the nut of the connecting and fixing plate. The rotor petal with the top plate installed is fixed to the ground using a fixing device, the rotor petal with the connecting and fixing plate installed is lifted by a crane and brought closer to the rotor petal fixed on the ground, the push rod is inserted into the push rod guide hole, the two rotor petals are slowly closed, and then the push rod is slowly withdrawn to achieve smooth assembly of the rotor petals.

[0031] The present invention has a simple structure, ingenious design and is easy to use. It can solve the problem of attraction and collision during the assembly of a direct-drive permanent magnet split-petal rotor, achieve smooth assembly of the rotor petals, and reduce damage to the product and injury to operators caused by collision, attraction and other problems during the assembly process.

[0032] The above description has fully disclosed the specific embodiments of the present invention. It should be pointed out that any changes made by those skilled in the art to the specific embodiments of the present invention do not deviate from the scope of the claims of the present invention. Accordingly, the scope of the claims of the present invention is not limited to the above specific embodiments.

Claims

1. An anti-sucking device for assembling a split rotor of a direct-drive permanent magnet motor, characterized in that: It includes a connecting fixing plate, a top plate, a top rod and fixing bolts. The connecting and fixing plate is formed by welding a steel plate and a nut, a first through hole is arranged on the steel plate at a position corresponding to the process hole on the first rotor petal, the fixing bolt passes through the first through hole and the process hole on the first rotor petal to fix the connecting and fixing plate on the first rotor petal, and a through hole penetrating the steel plate is arranged on the steel plate below the nut; The shape of the top plate corresponds to the shape of the connecting and fixing plate, a second through hole is arranged on the top plate at a position corresponding to the process hole on the second rotor petal, the fixing bolt passes through the second through hole and the process hole on the second rotor petal to fix the top plate on the second rotor petal, and a guide hole is arranged on the top plate at a position corresponding to the nut on the connecting and fixing plate; The push rod passes through the nut on the connecting and fixing plate, and the push rod extends into the guide hole on the top plate.

2. The anti-attraction device for assembling a split rotor of a direct-drive permanent magnet motor according to claim 1, characterized in that: The push rod is a hexagonal screw rod, the end of the screw rod is conical, the thread on the push rod matches the nut, and the push rod is screwed into the nut through the thread.

3. The anti-attraction device for assembling the split rotor of a direct-drive permanent magnet motor according to claim 2, characterized in that: A hand wheel is arranged at the end of the push rod.

4. The anti-attraction device for assembling a split rotor of a direct-drive permanent magnet motor according to claim 1, characterized in that: The guide hole is a through hole, and the hole diameter of the guide hole is smaller than the inner diameter of the nut.

5. The anti-attraction device for assembling a split rotor of a direct-drive permanent magnet motor according to claim 1, characterized in that: The nut and the guide hole are respectively arranged on the outside of the first rotor petal and the second rotor petal. When the push rod extends into the nut and the guide hole, the push rod does not contact the first rotor petal and the second rotor petal.

6. The anti-attraction device for assembling a split rotor of a direct-drive permanent magnet motor according to claim 1, characterized in that: The anti-sucking devices are respectively arranged at four corners of adjacent rotor lobes.

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