An electrically driven disassembly tool and method

Abstract

The application relates to the technical field of permanent magnet motors, and provides an electric drive disassembling tool and method.The electric drive disassembling tool comprises a horizontally arranged rotor pushing mechanism, a shell clamping support mechanism and a tray assembly; the rotor pushing mechanism is used for driving a rotor assembly to separate the rotor assembly from a motor shell of a permanent magnet electric drive; the shell clamping support mechanism is arranged on one side of the rotor pushing assembly and is used for fixing the motor shell; the tray assembly is slidingly arranged on the other side of the shell clamping support mechanism, which is away from the rotor pushing mechanism, and is used for assisting the shell clamping support mechanism in supporting the permanent magnet electric drive; the electric drive disassembling tool further comprises a rotor clamping structure; the rotor clamping structure is slidingly arranged on one side of the tray assembly, and the sliding direction of the rotor clamping structure is perpendicular to the sliding direction of the tray assembly. Compared with the prior art, the application can solve the technical defects of rotor assembly scratch and low efficiency caused by the risk of losing control of the permanent magnet electric drive during disassembly.

Description

Technical Field

[0001] This application relates to the field of permanent magnet motor technology, and in particular to an electric drive disassembly tooling and method. Background Technology

[0002] With the continuous development of new energy electric vehicles, electric drive, as a core component of new energy vehicles, has been widely used, and most existing electric drives use permanent magnet synchronous motors. However, many technical challenges are encountered when disassembling and repairing electric drives.

[0003] The rotor of a permanent magnet motor typically incorporates high-performance permanent magnets with extremely high magnetic field strength. During disassembly, transient adhesion may occur between the stator and rotor. This phenomenon not only hinders the disassembly process but can also cause serious damage to the surfaces of the stator and rotor, affecting the motor's performance and lifespan.

[0004] Furthermore, traditional electric drive disassembly methods typically require operators to use tools to tap or push the rotor to remove it from the motor housing. This method is not only time-consuming and labor-intensive, but also lacks standardization and is prone to errors due to human factors. This inefficient and high-risk disassembly method can no longer meet the requirements of modern industry for efficient, precise, and safe maintenance.

[0005] Therefore, there is an urgent need for an electric drive disassembly tooling and method to solve the technical defects of magnetic attraction runaway risk and low disassembly process efficiency during rotor disassembly. Summary of the Invention

[0006] The purpose of this invention is to provide a disassembly fixture and method for electric drives, which can solve the technical defects of rotor assembly scratches and low efficiency caused by the risk of capsular uncontrollability during the disassembly of permanent magnet electric drives. The specific solution is as follows:

[0007] An electric drive disassembly fixture includes: a horizontally arranged rotor pushing mechanism, a housing clamping and support mechanism, and a tray assembly;

[0008] The rotor drive mechanism is used to drive the rotor assembly to separate it from the motor housing of the permanent magnet electric drive.

[0009] The housing clamping and support mechanism is located on one side of the rotor drive assembly and is used to fix the motor housing;

[0010] The tray assembly is slidably arranged on the other side of the housing clamping support mechanism away from the rotor pushing mechanism, and is used to assist the housing clamping support mechanism in supporting the permanent magnet electric drive;

[0011] It also includes: rotor clamping structure;

[0012] The rotor clamping structure is slidably arranged on one side of the tray assembly, and the sliding direction of the rotor clamping structure is perpendicular to the sliding direction of the tray assembly.

[0013] Optionally, the rotor driving mechanism includes:

[0014] The first bracket has a lead screw drive structure arranged on its top. The lead screw drive structure drives the rotor assembly to separate it from the motor housing of the permanent magnet electric drive.

[0015] The lead screw drive structure includes:

[0016] A lead screw lever, one end of which is provided with a rotating handle, and the end of the lead screw lever near the handle is provided with a main lead screw bracket on a first bracket, and the other end of the lead screw lever is provided with a secondary lead screw bracket on a first bracket.

[0017] The lead screw slider is threadedly engaged with the lead lever, and the top of the lead screw slider is connected to the push guide rail through a limit bracket;

[0018] The guide rail has a push protrusion at the end away from the rotary handle that can abut against the rotor assembly, and the bottom of this end is in sliding limit engagement with the housing clamping support mechanism;

[0019] The push guide rail can move back and forth along the axial direction of the lead screw lever under the action of the lead screw slider.

[0020] Optionally, the housing clamping support mechanism includes:

[0021] A clamping bracket, wherein the upper part of the clamping bracket is provided with a square clearance hole for the push guide rail to pass through;

[0022] The clamping bracket is provided with a limit support frame at the inner bottom wall of the clearance hole, and the limit support frame slides with the push guide rail;

[0023] The clamping bracket has several positioning rods for positioning the motor housing and several locking components for fixing the motor housing on one inner wall.

[0024] Optionally, each of the positioning rods has a positioning pin at its free end;

[0025] Accordingly, the locking component includes: a transverse support rod and an elbow-type quick clamp arranged at the free end of the transverse support rod for fixing the motor housing.

[0026] Optionally, the tray assembly includes:

[0027] The housing tray has a plurality of first positioning parts on its upper surface for supporting and positioning the motor housing;

[0028] The reducer tray has several second positioning parts on its upper surface for supporting and positioning the reducer assembly.

[0029] Both the first positioning part and the second positioning part include a plurality of positioning vertical rods and a plurality of supporting vertical rods;

[0030] The bottom of both the housing tray and the reducer tray are slidably connected to the first guide rail structure.

[0031] Optionally, the rotor clamping structure includes:

[0032] The rotor support frame is slidably arranged on the outside of the guide rail structure and located between the housing tray and the reducer tray;

[0033] The sliding direction of the rotor support frame is perpendicular to the sliding direction of the housing tray or the reducer tray;

[0034] A clamping part located on the upper part of the rotor support frame for clamping or releasing the rotor assembly.

[0035] Optionally, the clamping part includes:

[0036] A clamping drive mechanism is arranged on the upper part of the rotor support frame and is used to drive the clamping assembly;

[0037] The clamping assembly is configured to clamp or release the rotor assembly under the action of the clamping drive mechanism;

[0038] The clamping drive mechanism includes:

[0039] The transmission rod has a drive handle at its bottom, which is rotatably connected to the drive slider, and at its top, which passes through the support cross plate; the support cross plate is integrally fixed with the rotor support frame.

[0040] A drive slider is slidably connected to the side wall of the rotor support frame, and the inner side of the drive slider is slidably connected to the rotor support frame through a second guide rail structure;

[0041] The bottom of the drive slider is driven to connect to the clamping assembly.

[0042] Optionally, the clamping assembly includes:

[0043] The first drive arm has one end rotatably connected to the bottom of the drive slider and the other end rotatably connected to the middle of the lower clamping arm.

[0044] The upper end of the middle part of the lower clamping arm is rotatably connected to the rotor support frame via a first pin, and the lower end is rotatably connected to the first drive arm via a second pin.

[0045] One end of the lower clamping arm extends rearward and is rotatably connected to one end of the second drive arm via a third pin at the end of the extension. A lower clamping anti-wear block is arranged on the upper surface of the other end of the lower clamping arm. The other end of the second drive arm is rotatably connected to the rear end of the upper clamping arm.

[0046] The middle part of the upper clamping arm is rotatably connected to the rotor support frame through a fourth pin; an upper clamping anti-wear block is arranged on the upper surface of one end of the upper clamping arm.

[0047] The upper clamping arm and the lower clamping arm are both L-shaped and are arranged on the rotor support frame in a corresponding manner.

[0048] By moving the drive slider, the first drive arm and the second drive arm move synchronously, so that the upper clamping arm and the lower clamping arm work together to clamp or release the rotor assembly.

[0049] A permanent magnet electric drive, characterized in that it is applied to the electric drive disassembly fixture to disassemble the motor housing, rotor assembly and reducer assembly; wherein the rotor assembly is located inside the motor housing, and the reducer assembly is enclosed at the open end of the motor housing.

[0050] An electric drive disassembly method, applied to the aforementioned electric drive disassembly fixture; the method includes:

[0051] The permanent magnet electric drive is hoisted onto the electric drive disassembly fixture, the motor housing end is fixed by the housing clamping structure, and the bottom of the permanent magnet electric drive is supported and positioned by the tray assembly;

[0052] Remove the fixing bolts between the motor housing and the reducer assembly, and use the rotor pushing mechanism to move the rotor assembly and reducer assembly inside the motor housing to the first preset position, so that the rotor assembly and reducer assembly are separated from the motor housing;

[0053] Move the rotor clamping structure to the second preset position to clamp the rotor assembly, and separate the reducer assembly from the rotor assembly by moving the reducer tray.

[0054] The above solution achieves the following beneficial technical effects:

[0055] This application provides an electric drive disassembly fixture and method. Through a horizontally arranged rotor pushing mechanism, housing clamping support mechanism, tray assembly, and rotor clamping structure, this application enables precise positioning and stable clamping of the motor housing during disassembly. Simultaneously, the tray assembly provides effective support for the permanent magnet electric drive, ensuring stable workpiece placement. The rotor clamping structure is designed to slide along a direction perpendicular to the tray assembly, allowing for rapid adjustment of the clamping position. This achieves precise centering and stable clamping of the rotor assembly, preventing displacement, impact, or surface damage during disassembly. Ultimately, this improves the overall stability, safety, and efficiency of permanent magnet electric drive disassembly. Attached Figure Description

[0056] Figure 1 A schematic diagram of the overall structure of an electric drive disassembly tooling;

[0057] Figure 2 A schematic diagram of the connection structure between the rotor driving mechanism and the housing clamping and support mechanism;

[0058] Figure 3 This is a schematic diagram of the rotor clamping structure;

[0059] Figure 4 A schematic diagram of the permanent magnet electric drive being hoisted onto the electric drive disassembly fixture;

[0060] Figure 5 This is a schematic diagram of the rotor assembly and reducer assembly separated from the motor housing.

[0061] Figure 6 This is a schematic diagram of the structure when the reducer assembly and the rotor assembly are separated. Detailed Implementation

[0062] To make the purpose, technical solution, and advantages of this application clearer, the following will be described in conjunction with the appendix. Figures 1 to 6 This application will be described in further detail. It is obvious that the described embodiments are merely some, not all, of the embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments described herein without inventive effort are within the scope of protection of this application.

[0063] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, and “multiple” generally includes at least two unless the context clearly indicates otherwise.

[0064] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0065] It should be understood that although the terms first, second, third, etc., may be used in the embodiments of this application, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, first may also be referred to as second without departing from the scope of the embodiments of this application, and similarly, second may also be referred to as first.

[0066] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0067] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0068] It should be noted that any symbols and / or numbers present in the specification that are not marked in the accompanying drawings are not reference numerals.

[0069] The optional embodiments of this application are described in detail below with reference to the accompanying drawings.

[0070] See Figures 1 to 6As shown; 1 is the rotor driving mechanism, 11 is the first support, 12 is the lead screw drive structure, 120 is the lead lever, 121 is the rotary handle; 122 is the main lead screw support; 123 is the auxiliary lead screw support; 124 is the lead screw slider; 125 is the limit support; 126 is the driving guide rail; 127 is the driving protrusion; 2 is the housing clamping support mechanism; 20 is the clamping support; 21 is the limit support frame; 22 is the positioning rod; 23 is the locking component; 230 is the toggle-type quick clamp; 3 is the tray assembly; 31 is the housing tray; 32 is... Positioning vertical rod; 33 is reducer tray; 34 is support vertical rod; 4 is rotor clamping structure; 41 is rotor support frame; 42 is clamping part; 420 is clamping drive mechanism; 4201 is transmission rod; 4202 is drive handle; 4203 is drive slider; 421 is clamping assembly; 4210 is first drive arm; 4211 is lower clamping arm; 4212 is second drive arm; 4213 is upper clamping arm; 5 is motor housing; 6 is reducer assembly; 7 is rotor assembly; 8 is support platform; 100 is permanent magnet electric drive.

[0071] according to Figure 1 The electric drive disassembly fixture shown includes: a horizontally arranged rotor pushing mechanism, a housing clamping and support mechanism, and a tray assembly;

[0072] The rotor drive mechanism is used to drive the rotor assembly to separate it from the motor housing of the permanent magnet electric drive.

[0073] The housing clamping and support mechanism is located on one side of the rotor drive assembly and is used to fix the motor housing;

[0074] The tray assembly is slidably arranged on the other side of the housing clamping support mechanism away from the rotor pushing mechanism, and is used to assist the housing clamping support mechanism in supporting the permanent magnet electric drive;

[0075] It also includes: rotor clamping structure;

[0076] The rotor clamping structure is slidably arranged on one side of the tray assembly, and the sliding direction of the rotor clamping structure is perpendicular to the sliding direction of the tray assembly.

[0077] Specifically, in this embodiment, the horizontally arranged rotor pushing mechanism, housing clamping support mechanism, tray assembly, and rotor clamping structure enable precise positioning and stable clamping of the motor housing during disassembly. Simultaneously, the tray assembly provides effective support for the permanent magnet drive, ensuring stable placement of the workpiece. The rotor clamping structure is designed to slide along a direction perpendicular to the tray assembly, allowing for rapid adjustment of the clamping position. This achieves precise centering and stable clamping of the rotor assembly, preventing displacement, impacts, or surface damage during disassembly. Ultimately, this improves the overall stability, safety, and efficiency of permanent magnet drive disassembly.

[0078] In one specific embodiment, the rotor driving mechanism includes:

[0079] The first bracket has a lead screw drive structure arranged on its top. The lead screw drive structure drives the rotor assembly to separate it from the motor housing of the permanent magnet electric drive.

[0080] The lead screw drive structure includes:

[0081] A lead screw lever, one end of which is provided with a rotating handle, and the end of the lead screw lever near the handle is provided with a main lead screw bracket on a first bracket, and the other end of the lead screw lever is provided with a secondary lead screw bracket on a first bracket.

[0082] The lead screw slider is threadedly engaged with the lead lever, and the top of the lead screw slider is connected to the push guide rail through a limit bracket;

[0083] The guide rail has a push protrusion at the end away from the rotary handle that can abut against the rotor assembly, and the bottom of this end is in sliding limit engagement with the housing clamping support mechanism;

[0084] The push guide rail can move back and forth along the axial direction of the lead screw lever under the action of the lead screw slider.

[0085] It is understood that this application adopts a lead screw drive structure with a lead screw lever and a lead screw slider, and achieves manual and precise feeding by rotating the handle. During the movement, the push guide rail forms a sliding limit support on the housing clamping support mechanism, which ensures that the pushing process is smooth and the axial force is uniform, thereby stably pushing the rotor assembly to separate from the motor housing. The advantages of this design are that it is labor-saving to operate and easy to control the pushing speed and displacement, and can effectively avoid damage to the rotor caused by impact or off-center load during disassembly.

[0086] In one specific embodiment, the housing clamping support mechanism includes:

[0087] A clamping bracket, wherein the upper part of the clamping bracket is provided with a square clearance hole for the push guide rail to pass through;

[0088] The clamping bracket is provided with a limit support frame at the inner bottom wall of the clearance hole, and the limit support frame slides with the push guide rail;

[0089] The clamping bracket has several positioning rods for positioning the motor housing and several locking components for fixing the motor housing on one inner wall.

[0090] It is understood that the housing clamping support mechanism provided in this application, by setting a clamping bracket with a square clearance hole, can not only provide a stable passage and clearance space for the push guide rail, but also form a sliding support and guide for the push guide rail through the limit support frame, ensuring that the rotor is not unbalanced or shaken during the push process; at the same time, multiple sets of positioning rods and locking components realize the rapid positioning and clamping and fixing of the motor housing, and the overall structure has good rigidity, which can effectively prevent the motor housing from shifting or shaking during disassembly, and improve the stability of tooling operation and disassembly safety.

[0091] In one specific embodiment, each of the positioning rods is provided with a positioning pin at its free end;

[0092] Accordingly, the locking component includes: a transverse support rod and an elbow-type quick clamp arranged at the free end of the transverse support rod for fixing the motor housing.

[0093] In one specific embodiment, the tray assembly includes:

[0094] The housing tray has a plurality of first positioning parts on its upper surface for supporting and positioning the motor housing;

[0095] The reducer tray has several second positioning parts on its upper surface for supporting and positioning the reducer assembly.

[0096] Both the first positioning part and the second positioning part include a plurality of positioning vertical rods and a plurality of supporting vertical rods;

[0097] The bottom of both the housing tray and the reducer tray are slidably connected to the first guide rail structure.

[0098] Specifically, this application adopts a split-type dual-pallet design of the housing tray and the reducer tray, and achieves independent sliding through the first guide rail structure at the bottom. This design can adapt to the step-by-step separation process of the motor housing and reducer assembly during the disassembly of permanent magnet electric drive, flexibly adjust the support position, avoid mutual interference between components during disassembly, and greatly improve the flexibility and smoothness of the disassembly operation. At the same time, based on the multiple sets of positioning vertical rods and support vertical rods set in the two sets of positioning parts, the motor housing and reducer assembly are precisely supported and positioned respectively. This ensures that the workpiece is placed stably and the force is even, preventing the workpiece from being bumped, deformed or shifted due to suspension or shaking. It is also suitable for the support needs of permanent magnet electric drive components of different specifications, and has stronger versatility.

[0099] In one specific embodiment, the rotor clamping structure includes:

[0100] The rotor support frame is slidably arranged on the outside of the guide rail structure and located between the housing tray and the reducer tray;

[0101] The sliding direction of the rotor support frame is perpendicular to the sliding direction of the housing tray or the reducer tray;

[0102] A clamping part located on the upper part of the rotor support frame for clamping or releasing the rotor assembly.

[0103] It is understood that the rotor clamping mechanism involved in this application arranges the rotor support frame on the outside of the first guide rail structure between the housing tray and the reducer tray, making full use of the internal space of the tooling and avoiding movement interference with the side trays and electric drive components. Simultaneously, the rotor support frame adopts a separate sliding design perpendicular to the sliding direction of the tray, allowing for flexible lateral adjustment according to the actual position of the rotor assembly, quickly and accurately aligning with the rotor clamping part to meet the disassembly and clamping requirements at different stages. Combined with the upper clamping part, it can stably achieve the clamping and releasing actions of the rotor assembly. The advantage of this design is that it prevents rotor movement and displacement during workpiece disassembly, thus preventing damage to internal magnets or shafts. Furthermore, the step-by-step sliding operation of the tray enables the orderly disassembly of the rotor, reducer assembly, and motor housing, improving disassembly efficiency.

[0104] In one specific embodiment, the clamping part includes:

[0105] A clamping drive mechanism is arranged on the upper part of the rotor support frame and is used to drive the clamping assembly;

[0106] The clamping assembly is configured to clamp or release the rotor assembly under the action of the clamping drive mechanism;

[0107] The clamping drive mechanism includes:

[0108] The transmission rod has a drive handle at its bottom, which is rotatably connected to the drive slider, and at its top, which passes through the support cross plate; the support cross plate is integrally fixed with the rotor support frame.

[0109] A drive slider is slidably connected to the side wall of the rotor support frame, and the inner side of the drive slider is slidably connected to the rotor support frame through a second guide rail structure;

[0110] The bottom of the drive slider is driven to connect to the clamping assembly.

[0111] It is understood that this application adopts a split design for the clamping drive mechanism and clamping components, and relies on a support cross plate that is integrally fixed with the rotor support frame to build a stable installation structure. In conjunction with the second guide rail structure, the directional sliding of the drive slider is realized, which effectively avoids jamming and deflection problems during the drive process. The manual control design of the transmission rod and the drive handle can achieve precise force application without external power, making operation simple and labor-saving, and facilitating real-time control of the clamping force. Through the clamping components that are synchronously linked to the linear displacement of the drive slider, the clamping and releasing actions of the rotor assembly can be smoothly completed. This ensures that the clamping force is uniform and controllable, preventing excessive clamping force from damaging the outer wall of the rotor or insufficient clamping force from causing loosening. It can also meet the dynamic clamping requirements during rotor disassembly. The overall structure is compact and robust, and the transmission is reliable.

[0112] In one specific embodiment, the clamping assembly includes:

[0113] The first drive arm has one end rotatably connected to the bottom of the drive slider and the other end rotatably connected to the middle of the lower clamping arm.

[0114] The upper end of the middle part of the lower clamping arm is rotatably connected to the rotor support frame via a first pin, and the lower end is rotatably connected to the first drive arm via a second pin.

[0115] One end of the lower clamping arm extends rearward and is rotatably connected to one end of the second drive arm via a third pin at the end of the extension. A lower clamping anti-wear block is arranged on the upper surface of the other end of the lower clamping arm. The other end of the second drive arm is rotatably connected to the rear end of the upper clamping arm.

[0116] The middle part of the upper clamping arm is rotatably connected to the rotor support frame through a fourth pin; an upper clamping anti-wear block is arranged on the upper surface of one end of the upper clamping arm.

[0117] The upper clamping arm and the lower clamping arm are both L-shaped and are arranged on the rotor support frame in a corresponding manner.

[0118] By moving the drive slider, the first drive arm and the second drive arm move synchronously, so that the upper clamping arm and the lower clamping arm work together to clamp or release the rotor assembly.

[0119] It is understood that this application employs a linkage transmission structure with symmetrical upper and lower L-shaped clamping arms and dual drive arms. During operation, the linear displacement of the drive slider alone can drive the upper and lower L-shaped clamping arms to rotate around their respective pins through the synchronous linkage transmission of the first and second drive arms, achieving single-power drive of synchronous action of the dual clamping arms. This results in low power transmission loss and strong coordination of action, thus avoiding rotor eccentricity and clamping offset problems caused by asynchronous action of the upper and lower clamping arms. Both the upper and lower clamping arms adopt an L-shaped structure and are arranged correspondingly to adapt to the shape of the rotor assembly and meet the force characteristics of the clamping parts. The clamping force is uniform and symmetrical, effectively preventing excessive local force on the rotor and deformation. At the same time, the lower clamping anti-wear block on the lower clamping arm and the upper clamping anti-wear block on the upper clamping arm achieve stable clamping while avoiding direct rigid contact between the clamping arms and the rotor surface, thereby avoiding the risk of wear and scratches on the rotor outer wall, magnets and other critical parts.

[0120] During operation, turning the drive handle causes the drive slider to move downward via the transmission rod. This causes the drive slider to move one end of the first drive arm downward. Under the fulcrum of the first pin, the left end of the lower clamping arm moves upward and the right end moves downward, thereby pulling down one end of the second drive arm. This causes the other end of the second drive arm to move counterclockwise to the right in an arc. Under the fulcrum of the fourth pin, the left end of the upper clamping arm moves downward, ultimately clamping and fixing the rotor assembly located between the upper and lower clamping arms.

[0121] Furthermore, this application also includes a support platform; wherein the electric disassembly fixture can be installed as a whole on the support platform to further improve the stability of the workpiece disassembly process.

[0122] On the other hand, this application provides a permanent magnet electric drive, which is applied to the electric drive disassembly fixture to complete the disassembly of the motor housing, rotor assembly and reducer assembly; wherein, the rotor assembly is located inside the motor housing, and the reducer assembly is enclosed at the opening end of the motor housing.

[0123] On the other hand, this application provides an electric drive disassembly method, applied to the aforementioned electric drive disassembly fixture; the method includes:

[0124] The permanent magnet electric drive is hoisted onto the electric drive disassembly fixture, the motor housing end is fixed by the housing clamping structure, and the bottom of the permanent magnet electric drive is supported and positioned by the tray assembly;

[0125] Remove the fixing bolts between the motor housing and the reducer assembly, and use the rotor pushing mechanism to move the rotor assembly and reducer assembly inside the motor housing to the first preset position, so that the rotor assembly and reducer assembly are separated from the motor housing;

[0126] Move the rotor clamping structure to the second preset position to clamp the rotor assembly, and separate the reducer assembly from the rotor assembly by moving the reducer tray.

[0127] This method, as understood, uses a housing clamping support mechanism in conjunction with a tray assembly to achieve overall fixation and bottom support of the permanent magnet electric drive, ensuring stable and undisturbed workpiece positioning. Then, a rotor pushing mechanism smoothly and synchronously moves the rotor assembly and reducer assembly, achieving non-destructive separation from the motor housing and avoiding damage to the housing or internal components caused by forced disassembly. Finally, a laterally adjustable rotor clamping structure fixes the rotor assembly, and the reducer tray is moved separately to achieve a step-by-step disassembly process between the reducer assembly and the rotor assembly. The advantages of this design are that it solves the technical problems of rotor misalignment, surface abrasion, and component collision damage during disassembly, ensuring the integrity of key components such as the motor housing, rotor assembly, and reducer assembly. It also greatly simplifies manual disassembly operations, allowing for precise disassembly without complex auxiliary tools, significantly improving the efficiency of permanent magnet electric drive disassembly.

[0128] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electric drive disassembly fixture, characterized in that, include: The horizontally arranged rotor driving mechanism, housing clamping and support mechanism, and tray assembly; The rotor drive mechanism is used to drive the rotor assembly to separate it from the motor housing of the permanent magnet electric drive. The housing clamping and support mechanism is located on one side of the rotor drive assembly and is used to fix the motor housing; The tray assembly is slidably arranged on the other side of the housing clamping support mechanism away from the rotor pushing mechanism, and is used to assist the housing clamping support mechanism in supporting the permanent magnet electric drive; It also includes: rotor clamping structure; The rotor clamping structure is slidably arranged on one side of the tray assembly, and the sliding direction of the rotor clamping structure is perpendicular to the sliding direction of the tray assembly.

2. The electric drive disassembly fixture according to claim 1, characterized in that, The rotor driving mechanism includes: The first bracket has a lead screw drive structure arranged on its top. The lead screw drive structure drives the rotor assembly to separate it from the motor housing of the permanent magnet electric drive. The lead screw drive structure includes: A lead screw lever, one end of which is provided with a rotating handle, and the end of the lead screw lever near the handle is provided with a main lead screw bracket on a first bracket, and the other end of the lead screw lever is provided with a secondary lead screw bracket on a first bracket. The lead screw slider is threadedly engaged with the lead lever, and the top of the lead screw slider is connected to the push guide rail through a limit bracket; The guide rail has a push protrusion at the end away from the rotary handle that can abut against the rotor assembly, and the bottom of this end is in sliding limit engagement with the housing clamping support mechanism; The push guide rail can move back and forth along the axial direction of the lead screw lever under the action of the lead screw slider.

3. The electric drive disassembly fixture according to claim 2, characterized in that, The housing clamping and support mechanism includes: A clamping bracket, wherein the upper part of the clamping bracket is provided with a square clearance hole for the push guide rail to pass through; The clamping bracket is provided with a limit support frame at the inner bottom wall of the clearance hole, and the limit support frame slides with the push guide rail; The clamping bracket has several positioning rods for positioning the motor housing and several locking components for fixing the motor housing on one inner wall.

4. The electric drive disassembly fixture according to claim 3, characterized in that, Each of the positioning rods has a positioning pin at its free end; Accordingly, the locking component includes: a transverse support rod and an elbow-type quick clamp arranged at the free end of the transverse support rod for fixing the motor housing.

5. The electric drive disassembly fixture according to claim 4, characterized in that, The tray assembly includes: The housing tray has a plurality of first positioning parts on its upper surface for supporting and positioning the motor housing; The reducer tray has several second positioning parts on its upper surface for supporting and positioning the reducer assembly. Both the first positioning part and the second positioning part include a plurality of positioning vertical rods and a plurality of supporting vertical rods; The bottom of both the housing tray and the reducer tray are slidably connected to the first guide rail structure.

6. The electric drive disassembly fixture according to claim 5, characterized in that, The rotor clamping structure includes: The rotor support frame is slidably arranged on the outside of the guide rail structure and located between the housing tray and the reducer tray; The sliding direction of the rotor support frame is perpendicular to the sliding direction of the housing tray or the reducer tray; A clamping part located on the upper part of the rotor support frame for clamping or releasing the rotor assembly.

7. The electric drive disassembly fixture according to claim 6, characterized in that, The clamping part includes: A clamping drive mechanism is arranged on the upper part of the rotor support frame and is used to drive the clamping assembly; The clamping assembly is configured to clamp or release the rotor assembly under the action of the clamping drive mechanism; The clamping drive mechanism includes: The transmission rod has a drive handle at its bottom, which is rotatably connected to the drive slider, and at its top, which passes through the support cross plate; the support cross plate is integrally fixed with the rotor support frame. A drive slider is slidably connected to the side wall of the rotor support frame, and the inner side of the drive slider is slidably connected to the rotor support frame through a second guide rail structure; The bottom of the drive slider is driven to connect to the clamping assembly.

8. The electric drive disassembly fixture according to claim 7, characterized in that, The clamping assembly includes: The first drive arm has one end rotatably connected to the bottom of the drive slider and the other end rotatably connected to the middle of the lower clamping arm. The upper end of the middle part of the lower clamping arm is rotatably connected to the rotor support frame via a first pin, and the lower end is rotatably connected to the first drive arm via a second pin. One end of the lower clamping arm extends rearward and is rotatably connected to one end of the second drive arm via a third pin at the end of the extension. A lower clamping anti-wear block is arranged on the upper surface of the other end of the lower clamping arm. The other end of the second drive arm is rotatably connected to the rear end of the upper clamping arm. The middle part of the upper clamping arm is rotatably connected to the rotor support frame through a fourth pin; an upper clamping anti-wear block is arranged on the upper surface of one end of the upper clamping arm. The upper clamping arm and the lower clamping arm are both L-shaped and are arranged on the rotor support frame in a corresponding manner. By moving the drive slider, the first drive arm and the second drive arm move synchronously, so that the upper clamping arm and the lower clamping arm work together to clamp or release the rotor assembly.

9. A permanent magnet electric drive, characterized in that, The electric drive disassembly fixture described in any one of claims 1-8 is used to disassemble the motor housing, rotor assembly, and reducer assembly; wherein the rotor assembly is located inside the motor housing, and the reducer assembly is enclosed at the open end of the motor housing.

10. A method for disassembling an electric drive, characterized in that, The method is applied to the electric drive disassembly fixture described in any one of claims 1-8; the method includes: The permanent magnet electric drive is hoisted onto the electric drive disassembly fixture, the motor housing end is fixed by the housing clamping structure, and the bottom of the permanent magnet electric drive is supported and positioned by the tray assembly; Remove the fixing bolts between the motor housing and the reducer assembly, and use the rotor pushing mechanism to move the rotor assembly and reducer assembly inside the motor housing to the first preset position, so that the rotor assembly and reducer assembly are separated from the motor housing; Move the rotor clamping structure to the second preset position to clamp the rotor assembly, and separate the reducer assembly from the rotor assembly by moving the reducer tray.

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