An assembly tool for a permanent magnet motor rotor

Abstract

This utility model relates to the field of mechanical engineering technology, specifically to an assembly fixture for a permanent magnet motor rotor. The fixture includes a housing, a motor stator, and an assembly assembly. The assembly assembly includes a rear bearing, two support rods, a rear guide rod, a motor rotor, an assembly part, and a front fixing part. The two support rods are inserted into both ends of the housing for fixation. The rear guide rod is inserted into the inner hole of the rear bearing. The assembly part is then fitted onto the motor rotor, and the front fixing part is then fixed to the motor rotor. The inner holes of the rear bearing and the front fixing part constrain the motor rotor and the motor stator to maintain coaxiality. The motor rotor is then pushed into the housing to axially position itself. The assembly part is then fixed to the housing. Finally, the front fixing part, support rods, and rear guide rod are removed. This fixture avoids collision damage caused by the attraction of permanent magnets during motor installation, thereby reducing the difficulty of motor assembly and improving the quality of motor assembly.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to an assembly fixture for a permanent magnet motor rotor. Background Technology

[0002] As a device that converts electrical energy into mechanical energy, permanent magnet motors, compared to traditional motors, use permanent magnets instead of armature windings and other components, resulting in high reliability and a low failure rate during operation. During the assembly of their rotors, permanent magnet motor rotor assembly fixtures are required.

[0003] Currently, permanent magnet motor rotor assembly fixtures are commonly used permanent magnet motor rotor assembly equipment. They include an assembly platform for placing the motor base assembly. The assembly platform is set up, the motor base assembly to be assembled is fixed on the assembly platform, the cylinder guide rod is raised, the shaft end of the permanent magnet rotor is placed into the guide sleeve and guide column of the cylinder guide rod head, and the cylinder guide rod is slowly lowered to guide the permanent magnet rotor into the motor base, thus realizing the automated assembly of the motor rotor.

[0004] However, using the above method, the existing assembly tooling generates a strong magnetic attraction force on the rotor during the process of installing the motor rotor into the motor stator, which can cause damage to the motor stator, rotor, and bearings. Summary of the Invention

[0005] The purpose of this utility model is to provide an assembly fixture for a permanent magnet motor rotor, which can avoid collision damage caused by the attraction of permanent magnets during motor installation, thereby reducing the difficulty of motor assembly and improving the quality of motor assembly.

[0006] To achieve the above objectives, this utility model provides an assembly fixture for a permanent magnet motor rotor, including a housing, a motor stator, and an assembly assembly, wherein the motor stator is disposed inside the housing;

[0007] The assembly includes a rear bearing, two support rods, a rear guide rod, a motor rotor, assembly parts, and a front fixing component;

[0008] The rear bearing is fixedly connected to the housing and located on one side of the housing; the two support rods are detachably connected to the housing and located on both sides of the housing; the rear guide rod is detachably connected to the housing and located on one side of the housing; the motor rotor is located on one side of the motor stator and the rear guide rod; the assembly is located on one side of the motor rotor; the front fixing member is disposed between the two support rods.

[0009] The outer shell has two mating grooves, which are located on both sides of the outer shell.

[0010] The rear guide rod has a rear slot located on one side of the rear guide rod.

[0011] The assembly includes a front bearing and a bearing housing, with the front bearing located on one side of the motor rotor; the bearing housing is fixedly connected to the front bearing and located on one side of the front bearing.

[0012] The front fixing component includes a support plate and a front guide rod. The support plate is detachably connected to two of the support rods and is located between the two support rods. The front guide rod is detachably connected to the support plate and is located on one side of the support plate. The front guide rod has a front slot located on one side of the front guide rod.

[0013] This utility model discloses an assembly fixture for a permanent magnet motor rotor. During the assembly of the permanent magnet motor rotor, two support rods are inserted into both ends of the outer casing for fixation. The rear guide rod is inserted into the inner hole of the rear bearing. The assembly piece is then fitted onto the motor rotor, and the front fixing piece is then fixed to the motor rotor. The inner holes of the rear bearing and the front fixing piece ensure that the motor rotor and the motor stator remain coaxial. The motor rotor is then pushed into the outer casing to axially position itself. The assembly piece is then fixed to the outer casing. Finally, the front fixing piece, the support rods, and the rear guide rod are removed. This fixture avoids collision damage caused by the attraction of permanent magnets during motor installation, thereby reducing the difficulty of motor assembly and improving the quality of motor assembly. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] 101-Housing, 102-Motor stator, 103-Rear bearing, 104-Support rod, 105-Rear guide rod, 106-Motor rotor, 107-Assembly, 108-Front fixing part, 109-Matching groove, 110-Rear slot, 111-Front bearing, 112-Bearing housing, 113-Support plate, 114-Front guide rod, 115-Front slot. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0018] Please see Figure 1 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] This utility model provides an assembly fixture for a permanent magnet motor rotor 106, comprising a housing 101, a motor stator 102, and an assembly assembly. The assembly assembly includes a rear bearing 103, two support rods 104, a rear guide rod 105, a motor rotor 106, an assembly part 107, and a front fixing part 108. The housing 101 has two mating grooves 109, the rear guide rod 105 has a rear slot 110, the assembly part 107 includes a front bearing 111 and a bearing seat 112, and the front fixing part 108 includes a support plate 113 and a front guide rod 114. The front guide rod 114 has a front slot 115. This fixture avoids collision damage caused by the attraction of permanent magnets during motor installation, thereby reducing the difficulty of motor assembly and improving the quality of motor assembly.

[0020] In this specific embodiment, the outer shell 101 and the electronic positioning work together with the assembly assembly to complete the assembly of the permanent magnet motor rotor 106.

[0021] The rear bearing 103 is fixedly connected to the housing 101 and located on one side of the housing 101; the two support rods 104 are detachably connected to the housing 101 and located on both sides of the housing 101; the rear guide rod 105 is detachably connected to the housing 101 and located on one side of the housing 101; the motor rotor 106 is located on one side of the motor stator 102 and the rear guide rod 105; the assembly 107 is located on one side of the motor rotor 106; the front fixing member 108 is disposed between the two support rods 104, the two support rods 104 are inserted into both ends of the housing 101 for fixing, the rear guide rod 105 is inserted into the inner hole of the rear bearing 103, and then... The mounting component 107 is fitted onto the motor rotor 106. Then, the front fixing member 108 is fixed to the motor rotor 106. Through the constraint of the rear bearing 103 and the inner hole of the front fixing member 108, the motor rotor 106 and the motor stator 102 are kept coaxial. Then, the motor rotor 106 is pushed into the housing 101, so that the motor rotor 106 is in axial position. The mounting component 107 is fixed to the housing 101. Then, the front fixing member 108, the support rod 104 and the rear guide rod 105 are removed. This tooling can avoid collision damage caused by the attraction of permanent magnets during motor installation, thereby reducing the difficulty of motor assembly and improving the quality of motor assembly.

[0022] Secondly, the two docking slots 109 are located on both sides of the outer shell 101, and the two docking slots 109 are used for the insertion and fixing of the two support rods 104.

[0023] Meanwhile, the rear slot 110 is located on one side of the rear guide rod 105, and the rear slot 110 is used for insertion into the tail end of the motor rotor 106.

[0024] In addition, the front bearing 111 is located on one side of the motor rotor 106; the bearing housing 112 is fixedly connected to the front bearing 111 and is located on one side of the front bearing 111. The front bearing 111 cooperates with the bearing housing 112 to be assembled and fixed with the housing 101 after the motor rotor 106 is in axial position.

[0025] Furthermore, the support plate 113 is detachably connected to the two support rods 104 and is located between the two support rods 104; the front guide rod 114 is detachably connected to the support plate 113 and is located on one side of the support plate 113; the front slot 115 is located on one side of the front guide rod 114. The support plate 113 is used to assemble on the two support rods 104, so that the front guide rod 114 can be inserted into the head end of the motor rotor 106 through the front slot 115, and then cooperate with the rear slot 110 of the rear guide rod 105 to keep the motor rotor 106 and the motor stator 102 coaxial.

[0026] When using this utility model, the two support rods 104 are inserted into both ends of the outer shell 101 for fixation. The rear guide rod 105 is inserted into the inner hole of the rear bearing 103. Then, the front bearing 111 is sleeved on the motor rotor 106 through the bearing seat 112. Next, the support plate 113 and the front guide rod 114 are fixed to the motor rotor 106. Through the constraint of the inner hole of the rear bearing 103 and the support plate 113, the motor rotor 106 and the motor stator 102 are kept coaxial. Then, the motor rotor 106 is pushed into the outer shell 101 so that the motor rotor 106 is in axial position. The bearing seat 112 is fixed to the outer shell 101. Then, the support plate 113, the front guide rod 114, the support rod 104 and the rear guide rod 105 are removed. This tooling can avoid collision damage caused by the attraction of permanent magnets during motor installation, thereby reducing the difficulty of motor assembly and improving the quality of motor assembly.

[0027] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An assembly fixture for a permanent magnet motor rotor, comprising a housing and a motor stator, wherein the motor stator is disposed inside the housing; characterized in that, It also includes assembly components; The assembly includes a rear bearing, two support rods, a rear guide rod, a motor rotor, assembly parts, and a front fixing component; The rear bearing is fixedly connected to the housing and located on one side of the housing; the two support rods are detachably connected to the housing and located on both sides of the housing respectively. The rear guide rod is detachably connected to the housing and is located on one side of the housing; the motor rotor is located on one side of the motor stator and the rear guide rod; the assembly is located on one side of the motor rotor; the front fixing member is disposed between the two support rods.

2. The assembly fixture for a permanent magnet motor rotor as described in claim 1, characterized in that, The outer casing has two mating grooves, which are located on both sides of the outer casing.

3. The assembly fixture for a permanent magnet motor rotor as described in claim 2, characterized in that, The rear guide rod has a rear slot located on one side of the rear guide rod.

4. The assembly fixture for a permanent magnet motor rotor as described in claim 3, characterized in that, The assembly includes a front bearing and a bearing housing, with the front bearing located on one side of the motor rotor; the bearing housing is fixedly connected to the front bearing and located on one side of the front bearing.

5. The assembly fixture for a permanent magnet motor rotor as described in claim 4, characterized in that, The front fixing component includes a support plate and a front guide rod. The support plate is detachably connected to two of the support rods and is located between the two support rods. The front guide rod is detachably connected to the support plate and is located on one side of the support plate. The front guide rod has a front slot located on one side of the front guide rod.

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