Large-torque motor installation tool

Abstract

The utility model discloses a large-torque motor installation tool, which relates to the field of large-torque motors, and comprises a tool platform, the surface of which is provided with a linear guide rail; the two dummy shafts comprise a long shaft and a short shaft, the long shaft is coaxially connected to one end of the main shaft of the rotor component, and the short shaft is coaxially connected to the other end of the main shaft of the rotor component; the two supporting frames are arranged on the two sides of the tool platform respectively, and each supporting frame is provided with a Haff hoop used for supporting the long shaft or the short shaft; the moving platform is installed on the linear rail in a sliding mode, and the stator component is installed on the moving platform through a shell; one end of the lead screw is driven by the rotating handle, the other end of the lead screw is supported on the tool platform, a lead screw nut is installed on the lead screw in a sliding mode and used for being connected with and driving the moving platform, the moving platform is controlled by the rotating handle to move in the axial direction of the dummy shaft, and assembling of the stator and rotor components is achieved. The utility model solves the problems that the surface-mounted magnetic steel is fragile, the rotor part and the stator part are not concentric, and the installation is difficult.

Description

Technical Field

[0001] This utility model relates to the field of high torque motors, and specifically to a high torque motor mounting fixture. Background Technology

[0002] The current installation method for high-torque motors often involves using a gantry crane for assisted installation. First, the stator is press-fitted into the housing, then the housing is fixed to a mounting platform. Next, the rotor assembly (rotor, magnets, and spindle) is lifted into the air using the gantry crane. A nylon half-clamp is installed below the rotor at the spindle extension for guidance. Finally, the rotor assembly is lifted above the housing and slowly lowered, using its own weight to secure it in place. However, this installation method is only suitable for motors with embedded magnets. If surface-mounted magnets are installed using this method, the magnet surface will be attracted to the stator surface due to its strong magnetism during vertical descent. Since magnets are quite brittle, this attraction can cause them to break. Therefore, when installing motors with surface-mounted magnets, it is essential to ensure that the rotor assembly and stator assembly do not become stuck together.

[0003] Another method involves vertical installation of the press, using upper and lower pressure plates to create a fixing fixture to ensure the concentricity of the rotor and stator components. This installation method requires a relatively large press; due to the large size of the motor, the required press is too tall, necessitating a certain ceiling height in the factory. Furthermore, the motor's rotor component is quite heavy, and when fixed to the upper pressure plate and raised to its highest position, there is a risk of tipping over due to the high center of gravity. In addition, because the pressure applied during installation is very high and the installation position cannot be observed, any deviation during installation can cause serious damage to all internal components of the motor. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a high-torque motor installation fixture, which solves the problem of the fragility of surface-mounted magnets, the problem of misalignment between rotor and stator components, and the problem of difficult installation.

[0005] The objective of this utility model is achieved through the following technical solution: a high-torque motor mounting fixture, wherein the high-torque motor includes a stator component and a rotor component, and the fixture includes:

[0006] The tooling platform has linear guides on its surface;

[0007] Two dummy shafts, including a long shaft and a short shaft, wherein the long shaft is coaxially connected to one end of the main shaft of the rotor component, and the short shaft is coaxially connected to the other end of the main shaft of the rotor component;

[0008] Two support frames are set on both sides of the tooling platform, and each support frame is equipped with a half clamp to support the long shaft or the short shaft.

[0009] The mobile platform is slidably mounted on the rail, and the stator components are detachably mounted on the mobile platform via a housing; and

[0010] The lead screw is driven by a rotary handle at one end and supported on a tooling platform at the other end. A lead screw nut is slidably installed on the lead screw to connect and drive the moving platform. The moving platform is controlled to move axially along the dummy shaft by rotating the handle, so as to realize the assembly of the stator and rotor components.

[0011] As a further technical solution, the long shaft passes through the stator component, and the housing is adjusted radially along the long shaft by set screws to keep the housing parallel to the rotor component and the gaps at both ends consistent, ensuring that the stator component and the rotor component are coaxial.

[0012] As a further technical solution, a front end cover is fitted onto the long shaft between the stator component and a support frame, and the front end cover is fixedly installed at the front end of the housing; a rear end cover is fitted onto the short shaft between the rotor component and another support frame, and the rear end cover is fixedly installed at the rear end of the housing.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. Design the height of the two side support frames and the moving platform to ensure that the rotor and stator components are on the same horizontal line. Then, adjust the left and right position relationship by using the set screws on the moving platform to ensure the concentricity of the rotor and stator components, thereby ensuring installation accuracy and controlling the gap between the rotor and stator.

[0015] 2. The rotor assembly is fixed by a dummy shaft, the stator assembly is fixed by a moving platform, and the installation is carried out by a linear guide rail. The gap around the rotor and stator is kept constant at all times, so that the magnets do not come into contact with the stator during the installation process.

[0016] 3. Use the rotating handle to control the lead screw. During installation, you can pause at any time to observe the installation position. If any problems are found, you can stop and exit the installation immediately. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0019] Figure 3 This is a side view of the structure of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Rotary handle; 2. Tooling platform; 3. Front end cover; 4. Dummy shaft; 41. Long shaft; 42. Short shaft; 5. Moving platform; 6. Linear guide; 7. Set screw; 8. Stator assembly; 9. Lead screw; 10. Rotor assembly; 11. Support frame; 12. Half clamp; 13. Rear end cover. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings:

[0022] Example: As attached Figures 1-3 As shown, this high-torque motor mounting fixture includes a rotating handle 1, a fixture platform 2, a front end cover 3, a dummy shaft 4, a long shaft 41, a short shaft 42, a moving platform 5, a linear guide 6, a set screw 7, a stator assembly 8, a lead screw 9, a rotor assembly 10, a support frame 11, a half clamp 12, and a rear end cover 13.

[0023] Reference Appendix Figure 1 , 2 Two linear guides 6 are installed along the length of the upper surface of the tooling platform 2. Several sliders are installed at the bottom of the moving platform 5, which are slidably mounted on the linear guides 6. Meanwhile, the stator component 8 is detachably mounted on the moving platform 5 through an external housing. Figure 3 As shown.

[0024] Furthermore, the high-torque motor consists of a stator component 8 and a rotor component 10. A main shaft passes through the rotor component 10, and two dummy shafts 4, including a long shaft 41 and a short shaft 42, are used. The long shaft 41 is coaxially connected to one end of the main shaft of the rotor component 10, and the short shaft 42 is coaxially connected to the other end of the main shaft of the rotor component 10. Additionally, a support frame 11 is provided on each side of the tooling platform 2, and a set of half-clamps 12 is installed on each support frame 11. The half-clamps 12 support the long shaft 41 or the short shaft 42, keeping the entire rotor component 10 suspended. Preferably, the long shaft 41 passes through the stator component 8, and the housing of the stator component 8 can be adjusted radially along the long shaft 41 using a set screw 7, keeping the housing parallel to the rotor component 10 with consistent clearance at both ends, ensuring that the stator component 8 and the rotor component 10 are coaxial.

[0025] Furthermore, a lead screw 9 is also provided on the upper surface of the tooling platform 2 along the length direction. One end of the lead screw 9 is driven by the rotating handle 1, and the other end of the lead screw 9 is supported on the tooling platform 2. A lead screw nut is slidably installed on the lead screw 9. The lead screw nut is used to drive the moving platform 5, thereby controlling the moving platform 5 (and the stator component 8 on it) to move axially along the dummy shaft 4 (long shaft 41) by rotating the handle 1, so as to realize the assembly of the stator component 8 and the rotor component 10.

[0026] Preferably, refer to the appendix Figure 2A front cover 3 is fitted on the long shaft 41 between the stator component 8 and a support frame 11. In addition, a rear cover 13 is fitted on the short shaft 42 between the rotor component 10 and another support frame 11. After the stator component 8 and the rotor component 10 are assembled, the front cover 3 is fixedly installed at the front end of the housing, and the rear cover 13 is fixedly installed at the rear end of the housing.

[0027] The working process of this utility model:

[0028] Taking the SAVDD-720-90-20 motor (low-speed, high-torque motor) as an example, the rotor component of this motor has a diameter of 1153.6 mm, the stator inner diameter is 1157.2 mm, and the air gap between the rotor and stator is 1.8 mm. The magnets in the rotor component are surface-mounted magnets, totaling 1200 pieces. All the magnets are exposed and relatively fragile; if they come into contact with other metal objects, a strong impact may cause them to shatter.

[0029] Installation process:

[0030] 1. Purchase a standard casting platform in advance as the tooling platform 2 to ensure the levelness during installation. Make support frames 11 at both ends of the tooling platform 2. Fix half clamps 12 to the upper end of the support frames 11 to install the rotor component 10 and stator component 8 of the motor respectively.

[0031] 2. Place the stator component 8 on the moving platform 5, and move the moving platform 5 to the left;

[0032] 3. Install the dummy shaft 4 on the rotor assembly 10, install the long shaft 41 on the rotor shaft extension end, and install the short shaft 42 on the rotor tail end;

[0033] 4. Lift the rotor assembly 10, pass the long shaft 42 through the stator assembly 8, then use a forklift to lift the front cover 3, pass it through the dummy shaft 4, and place it on the dummy shaft 4. Finally, place both ends of the dummy shaft 4 on the support platforms 11 on both sides and support it with the half clamps 12.

[0034] 5. Detect the distance between the stator assembly 8 and the dummy shaft 4 (long shaft 41) in four directions (up, down, left, and right). Use the four set screws 7 on the moving platform 5 to adjust the left and right directions of the housing, ensuring it is parallel to the rotor assembly 10 and that the gaps at both ends are consistent. Use shims to adjust the height of the housing or the half-clamp 12 to ensure that the housing and the rotor assembly 10 are on the same horizontal line. When the distances are equal, tighten the housing anchor bolts and set screws 7, and tighten the half-clamp 12 to ensure that the stator and rotor are fixed on the tooling.

[0035] 6. Use the rotating handle 1 to slowly move the stator component 8 forward for installation. During the installation process, observe the gaps around the components at any time. If any abnormality is found, pause and adjust accordingly.

[0036] 7. Secure the end caps (front end cap 3 and rear end cap 13) to complete the assembly.

[0037] It is understood that, for those skilled in the art, any equivalent substitutions or modifications to the technical solutions and inventive concepts of this utility model should fall within the protection scope of the appended claims.

Claims

1. A high-torque motor mounting fixture, the high-torque motor comprising a stator component (8) and a rotor component (10), characterized in that, include: Tooling platform (2), with linear guides (6) on its surface; Two dummy shafts (4) include a long shaft (41) and a short shaft (42), wherein the long shaft (41) is coaxially connected to one end of the main shaft of the rotor component (10), and the short shaft (42) is coaxially connected to the other end of the main shaft of the rotor component (10); Two support frames (11) are respectively set on both sides of the tooling platform (2). Each support frame (11) is equipped with a half clamp (12) to support the long shaft (41) or the short shaft (42). The mobile platform (5) is slidably mounted on the rail (6), and the stator component (8) is detachably mounted on the mobile platform (5) via a housing; and The lead screw (9) is driven by a rotating handle (1) at one end and supported on a tooling platform (2) at the other end. A lead screw nut is slidably installed on the lead screw (9) to connect and drive the moving platform (5). The moving platform (5) is controlled to move along the axial direction of the dummy shaft (4) by rotating the handle (1), so as to realize the assembly of the stator component (8) and the rotor component (10).

2. The high-torque motor mounting fixture according to claim 1, characterized in that: The long shaft (41) passes through the stator component (8), and the housing is adjusted radially along the long shaft (41) by the set screw (7) so that the housing and the rotor component (10) are kept parallel and the gaps at both ends are consistent, ensuring that the stator component (8) and the rotor component (10) are coaxial.

3. The high-torque motor mounting fixture according to claim 1, characterized in that: A front end cover (3) is fitted onto the long shaft (41) between the stator component (8) and a support frame (11), and the front end cover (3) is fixedly installed at the front end of the housing; a rear end cover (13) is fitted onto the short shaft (42) between the rotor component (10) and another support frame (11), and the rear end cover (13) is fixedly installed at the rear end of the housing.

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