Motor assembly guide rail tooling

Abstract

The utility model relates to motor assembly technical field, concretely relates to a kind of motor combined assembly guide rail tool, including trapezoidal screw rod, and the guide shaft coaxially arranged in trapezoidal screw rod one end, the guide shaft is used to coaxial connection motor shaft, trapezoidal screw rod screw is installed with trapezoidal screw rod nut, trapezoidal screw rod nut external fixed mounting is used to carry the guide sleeve of stator assembly, trapezoidal screw rod nut drives guide sleeve to move to guide shaft one end makes stator assembly and rotor assembly concentric assembly.This technical scheme moves the control of stator and rotor assembly by the cooperation of trapezoidal screw rod, guide sleeve and guide shaft, completes the combined assembly of stator assembly, rotor assembly and motor shaft, while ensuring the concentricity of stator and rotor and motor shaft three, avoid that rotor eccentricity can lead to air gap magnetic density uneven distribution, motor operation vibration noise is larger, motor can appear the risk of rotor sweep bore.

Description

Technical Field

[0001] This utility model relates to the field of motor assembly technology, specifically to a motor assembly guide rail tooling. Background Technology

[0002] The stator and rotor assemblies are key components in motor assembly, and their concentricity significantly impacts stable motor operation. Rotor eccentricity leads to uneven distribution of air gap magnetic flux, resulting in increased vibration and noise during motor operation. Severe eccentricity can even cause rotor rubbing. Utility Model Content

[0003] To address the aforementioned issues, it is necessary to provide a motor assembly guide rail tooling that addresses the problems of existing technologies.

[0004] To solve the existing technical problems, the technical solution adopted by this utility model is as follows: a motor assembly guide rail tooling, including a trapezoidal lead screw and a guide shaft coaxially disposed at one end of the trapezoidal lead screw. The guide shaft is used to coaxially connect the motor shaft. A trapezoidal lead screw nut is screwed on the trapezoidal lead screw. A guide sleeve for supporting the stator assembly is fixedly installed on the outside of the trapezoidal lead screw nut. The trapezoidal lead screw nut drives the guide sleeve to move towards one end of the guide shaft so that the stator assembly and the rotor assembly are concentrically assembled.

[0005] In order to install the rotor assembly on the guide sleeve, the following features are specifically provided: a flange cover is coaxially provided at one end of the guide sleeve facing the guide shaft, and the guide sleeve is fixedly connected to the housing of the rotor assembly through the flange cover.

[0006] To ensure that the rotor assembly can be moved to the outside of the stator assembly located on the motor shaft, the following features are specifically provided: a shaft cavity is provided at the axis of the guide shaft, which passes through the guide shaft; an insertion hole is coaxially provided at one end of the shaft cavity facing the trapezoidal lead screw; and an insertion head that matches the inner diameter of the insertion hole is coaxially provided at one end of the trapezoidal lead screw facing the guide shaft.

[0007] Preferably, the inner diameter of the shaft cavity matches the diameter of the motor shaft.

[0008] Preferably, an inner cavity is provided at the axis of the guide sleeve, and the trapezoidal lead screw nut is fixedly installed at the end of the inner cavity away from the guide shaft.

[0009] Preferably, the inner diameter of the cavity matches the outer diameter of the guide shaft.

[0010] To facilitate the guide shaft's entry into the inner cavity of the guide sleeve, the following feature is specifically provided: the inner cavity of the guide sleeve is provided with a tapered opening that expands outwards towards one end of the guide shaft.

[0011] In order to achieve the purpose of the guide sleeve moving along the trapezoidal lead screw, the following features are specifically provided: a connecting post is coaxially provided at the end of the trapezoidal lead screw away from the insertion head, and a limit groove is provided on the outer circumference of the connecting post, and the limit groove extends along the axis of the connecting post.

[0012] The advantages of this utility model compared to the prior art are: Firstly, this utility model controls the movement of the stator and rotor assemblies through the cooperation of the trapezoidal lead screw, guide sleeve and guide shaft, so as to complete the assembly of the stator assembly, rotor assembly and motor shaft at the same time ensure the concentricity of the stator, rotor and motor shaft, and avoid the risk of rotor swiping caused by rotor eccentricity, which would lead to uneven distribution of air gap magnetic flux, large vibration and noise during motor operation.

[0013] Secondly, when the guide sleeve in this utility model is completely fitted outside the guide shaft, the rotor assembly on the guide sleeve can be assembled with the stator assembly on the motor shaft. The inner diameter of the inner cavity matches the outer diameter of the guide shaft, which can ensure the stability of the guide sleeve when it moves. Attached Figure Description

[0014] Figure 1 This is a 3D view of a motor assembly guide rail fixture; Figure 2 This is a three-dimensional sectional view of a motor assembly guide rail tooling; Figure 3 This is an exploded three-dimensional diagram of a motor assembly guide rail tooling. Figure 4 This is a three-dimensional view of a motor assembly guide rail tooling in its first working state; Figure 5 This is a three-dimensional sectional view of a motor assembly guide rail tooling in its first working state; Figure 6 This is a three-dimensional view of a motor assembly guide rail tooling in its second working state; Figure 7 This is a three-dimensional sectional view of a motor assembly guide rail tooling in its second working state; The numbers in the diagram are: 1. Trapezoidal lead screw; 1a. Trapezoidal lead screw nut; 1b. Guide sleeve; 1b1. Flange cover; 1b2. Inner cavity; 1b3. Conical opening; 1c. Insertion head; 1d. Connecting column; 1d1. Limiting groove; 2. Guide shaft; 2a. Shaft cavity; 2a1. Insertion hole. Detailed Implementation

[0015] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0016] Reference Figures 1 to 7: A motor assembly guide rail fixture includes a trapezoidal lead screw 1 and a guide shaft 2 coaxially disposed at one end of the trapezoidal lead screw 1. The guide shaft 2 is used to coaxially connect the motor shaft. A trapezoidal lead screw nut 1a is screwed onto the trapezoidal lead screw 1. A guide sleeve 1b for supporting the stator assembly is fixedly installed on the outside of the trapezoidal lead screw nut 1a. The trapezoidal lead screw nut 1a drives the guide sleeve 1b to move toward one end of the guide shaft 2 so that the stator assembly and the rotor assembly are concentrically assembled.

[0017] When using the motor assembly guide rail fixture in this application, such as Figure 4 In the first working state shown, the stator assembly is first installed on the motor shaft, and then the rotor assembly is installed on the guide sleeve 1b of the trapezoidal lead screw 1 of this fixture. Then, the guide shaft 2 at one end of the trapezoidal lead screw 1 is connected to the motor shaft, achieving coaxial arrangement of the motor shaft, guide shaft 2, and trapezoidal lead screw 1. At this time, the stator assembly and rotor assembly are immediately on the same axis. Since the guide sleeve 1b is screwed onto the trapezoidal lead screw 1 via the trapezoidal lead screw nut 1a, the guide sleeve 1b and the rotor assembly carried by the guide sleeve 1b can move along the axis of the trapezoidal lead screw 1 through the trapezoidal lead screw nut 1a until the stator assembly, rotor assembly, and motor shaft are fully assembled, forming the shape shown. Figure 5 and Figure 6 In the second working state shown, this embodiment controls the movement of the stator and rotor assembly through the cooperation of the trapezoidal lead screw 1, guide sleeve 1b and guide shaft 2. While completing the assembly of the stator assembly, rotor assembly and motor shaft, it ensures the concentricity of the stator, rotor and motor shaft, and avoids the risk of rotor swiping caused by rotor eccentricity, which would lead to uneven distribution of air gap magnetic flux, large vibration and noise during motor operation.

[0018] To mount the rotor assembly onto the guide sleeve 1b, the following features are specifically provided: A flange cover 1b1 is coaxially provided at one end of the guide sleeve 1b facing the guide shaft 2, and the guide sleeve 1b is fixedly connected to the housing of the rotor assembly through the flange cover 1b1.

[0019] In this embodiment, the rotor assembly housing can be provided with several mounting screw holes, and the flange cover 1b1 of the guide sleeve 1b facing the guide shaft 2 is provided with mounting holes distributed around the axis of the guide sleeve 1b, such as... Figure 4 In the first working state shown, after the operator aligns the mounting screw holes on the rotor assembly housing with the mounting holes on the flange cover 1b1 using bolts and installs them, the rotor assembly and the guide sleeve 1b can be coaxially connected, and the rotor assembly and the stator assembly can be kept coaxially installed when the guide sleeve 1b moves.

[0020] To ensure that the rotor assembly can be moved outside the stator assembly located on the motor shaft, the following features are specifically designed: A shaft cavity 2a is provided at the axis of the guide shaft 2, which passes through the guide shaft 2. A insertion hole 2a1 is coaxially provided at the end of the shaft cavity 2a facing the trapezoidal lead screw 1. An insertion head 1c that matches the inner diameter of the insertion hole 2a1 is coaxially provided at the end of the trapezoidal lead screw 1 facing the guide shaft 2.

[0021] The inner diameter of shaft cavity 2a matches the diameter of the motor shaft.

[0022] An inner cavity 1b2 is provided at the axis of the guide sleeve 1b, and a trapezoidal screw nut 1a is fixedly installed at the end of the inner cavity 1b2 away from the guide shaft 2.

[0023] The inner diameter of the inner cavity 1b2 matches the outer diameter of the guide shaft 2.

[0024] In this embodiment, the motor shaft is inserted into one end of the shaft cavity 2a of the guide shaft 2. The inner diameter of the shaft cavity 2a matches the diameter of the motor shaft, thus achieving a coaxial connection between the guide shaft 2 and the motor shaft. The rotor assembly is located at the end of the guide sleeve 1b facing the guide shaft 2, and the trapezoidal lead screw nut 1a is located at the end of the guide sleeve 1b away from the guide shaft 2. Therefore, when the guide sleeve 1b moves towards the guide shaft 2, the guide shaft 2 can enter the inner cavity 1b2 at the axis of the guide sleeve 1b. Since the guide shaft 2 is inserted into one end of the motor shaft through the shaft cavity 2a, when the guide sleeve 1b is completely fitted outside the guide shaft 2, the rotor assembly on the guide sleeve 1b can be assembled with the stator assembly on the motor shaft. The matching of the inner diameter of the inner cavity 1b2 with the outer diameter of the guide shaft 2 ensures the stability of the guide sleeve 1b during movement.

[0025] To facilitate the entry of the guide shaft 2 into the inner cavity 1b2 of the guide sleeve 1b, the following features are specifically provided: The inner cavity 1b2 of the guide sleeve 1b is provided with a tapered opening 1b3 that expands outward at one end of the guide shaft 2.

[0026] In this embodiment, when one end of the guide sleeve 1b moves to one end of the guide shaft 2, the guide shaft 2 preferably contacts the tapered opening 1b3 of the inner cavity 1b2 and enters the inner cavity 1b2 under the guidance of the tapered opening 1b3, so as to avoid the collision between the inner cavity 1b2 and the guide shaft 2 due to dimensional errors.

[0027] To achieve the purpose of moving the guide sleeve 1b along the trapezoidal lead screw 1, the following features are specifically provided: A connecting post 1d is coaxially provided at the end of the trapezoidal lead screw 1 away from the insertion head 1c. A limiting groove 1d1 is provided on the outer periphery of the connecting post 1d, and the limiting groove 1d1 extends along the axis of the connecting post 1d.

[0028] In this embodiment, the trapezoidal lead screw 1 is inserted into the insertion hole 2a1 at one end of the guide shaft 2 through the insertion head 1c, realizing the coaxial connection between the trapezoidal lead screw 1 and the guide shaft 2. When assembling the stator and rotor, the operator can use the connecting column 1d and the limiting slot 1d1 on the connecting column 1d in conjunction with the coupling to connect a separate motor, drive the trapezoidal lead screw 1 to rotate around the axis, and restrict the rotation of the guide sleeve 1b, thereby realizing that the trapezoidal lead screw nut 1a drives the guide sleeve 1b to move along the axis of the trapezoidal lead screw 1. Alternatively, the rotation of the trapezoidal lead screw 1 can be restricted by the limiting slot 1d1 on the connecting column 1d, thereby driving the trapezoidal lead screw nut 1a to move along the axis of the trapezoidal lead screw 1 through the rotation of the guide sleeve 1b, realizing the approach and assembly of the stator and rotor.

[0029] In this embodiment, when the motor assembly guide rail fixture is in use, the stator assembly is first installed on the motor shaft, and then the rotor assembly is installed on the guide sleeve 1b of the trapezoidal lead screw 1 of this fixture. Then, the guide shaft 2 at one end of the trapezoidal lead screw 1 is connected to the motor shaft, so that the motor shaft, guide shaft 2 and trapezoidal lead screw 1 are coaxially arranged. At this time, the stator assembly and the rotor assembly are immediately on the same axis. The trapezoidal lead screw nut 1a, along with the guide sleeve 1b and the rotor assembly carried by the guide sleeve 1b, moves along the axis of the trapezoidal lead screw 1 until the stator assembly, rotor assembly and motor shaft are assembled.

[0030] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A motor assembly guide rail fixture, characterized in that, The device includes a trapezoidal lead screw (1) and a guide shaft (2) coaxially disposed at one end of the trapezoidal lead screw (1). The guide shaft (2) is used to coaxially connect the motor shaft. A trapezoidal lead screw nut (1a) is screwed on the trapezoidal lead screw (1). A guide sleeve (1b) for supporting the stator assembly is fixedly installed on the outside of the trapezoidal lead screw nut (1a). The trapezoidal lead screw nut (1a) drives the guide sleeve (1b) to move toward one end of the guide shaft (2) so that the stator assembly and the rotor assembly are concentrically assembled.

2. The motor assembly guide rail fixture according to claim 1, characterized in that, The guide sleeve (1b) is coaxially provided with a flange cover (1b1) at one end facing the guide shaft (2), and the guide sleeve (1b) is fixedly connected to the housing of the rotor assembly through the flange cover (1b1).

3. The motor assembly guide rail fixture according to claim 1, characterized in that, A shaft cavity (2a) is provided at the axis of the guide shaft (2), and an insertion hole (2a1) is coaxially provided at one end of the shaft cavity (2a) facing the trapezoidal screw (1). An insertion head (1c) matching the inner diameter of the insertion hole (2a1) is coaxially provided at one end of the trapezoidal screw (1) facing the guide shaft (2).

4. The motor assembly guide rail fixture according to claim 3, characterized in that, The inner diameter of the shaft cavity (2a) matches the diameter of the motor shaft.

5. The motor assembly guide rail fixture according to claim 3, characterized in that, The guide sleeve (1b) has an inner cavity (1b2) at its axis, and the trapezoidal screw nut (1a) is fixedly installed at the end of the inner cavity (1b2) away from the guide shaft (2).

6. The motor assembly guide rail fixture according to claim 5, characterized in that, The inner diameter of the cavity (1b2) matches the outer diameter of the guide shaft (2).

7. The motor assembly guide rail fixture according to claim 6, characterized in that, The inner cavity (1b2) of the guide sleeve (1b) is provided with a tapered opening (1b3) that expands outward at one end of the guide shaft (2).

8. The motor assembly guide rail fixture according to claim 1, characterized in that, The trapezoidal lead screw (1) has a connecting post (1d) coaxially arranged at one end away from the insertion head (1c). A limiting groove (1d1) is provided on the outer periphery of the connecting post (1d), and the limiting groove (1d1) extends along the axis of the connecting post (1d).

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