Limiting mechanism for stator and rotor assembly

Abstract

The utility model discloses a limiting mechanism for stator and rotor assembly, and relates to the field of stator and rotor assembly. The limiting mechanism comprises a positioning seat, a heavy sleeve seat and a lever connecting claw, the positioning seat is connected with the heavy sleeve seat through the rotatably mounted lever connecting claw, the lever connecting claw is fixedly connected with a limiting clamping rod, and a plurality of clamping lugs are arranged on the surface of the limiting clamping rod and used for limiting and clamping the periphery of the stator; the heavy sleeve seat is slidably sleeved on the inner side of the positioning seat, the periphery of the heavy sleeve seat is provided with threads and sleeved with the turncap, and the inner side of the heavy sleeve seat is provided with a guide inclined plane and a chute. According to the utility model, free switching among a rotor assembling mode, a stator assembling mode and a stator and rotor concentric positioning assembling mode can be realized, automatic centering of a rotor shaft is realized through cooperation of the inclined clamping wedges, the guide inclined planes and the sliding chutes, and the periphery of a stator is accurately clamped and limited through the limiting clamping rods and the clamping lugs; the device has the advantages of simple structure, multiple functions and high assembly efficiency, and is suitable for stator and rotor assembly in the motor field.

Description

Technical Field

[0001] This utility model relates to the field of motor assembly technology, specifically a limiting mechanism for stator and rotor assembly. Background Technology

[0002] In traditional stator and rotor assembly processes, independent clamping or limiting devices are typically used for positioning and fixing. For example, in existing technologies, the rotor shaft is usually clamped manually or by mechanical jigs, while the stator is fixed using separate support tools for support and limiting. These clamps and support tools generally consist of multiple independent components, have a relatively complex structure, and are cumbersome to operate, requiring multiple manual adjustments to ensure assembly accuracy. During assembly, ensuring the concentricity of the stator and rotor is difficult, often necessitating additional measuring equipment for calibration.

[0003] However, the aforementioned traditional technical solutions have the following significant drawbacks:

[0004] The existing assembly fixtures are mostly specialized equipment that can only meet the assembly needs of a single component (such as a rotor or stator). They are difficult to switch flexibly between clamping and limiting multiple components, resulting in low work efficiency.

[0005] Insufficient positioning accuracy affects assembly quality: Due to the lack of integrated automatic adjustment function, the rotor shaft is difficult to achieve radial automatic centering during clamping, and the stator is prone to positional deviation during assembly due to gravity or external forces, making it difficult to ensure concentricity, which leads to a decrease in the operational stability of the assembled components.

[0006] Complex operation and high labor intensity: In the traditional solution, the stator and rotor need to be assembled using separate devices, which requires frequent manual adjustments and complicated operation procedures, increasing assembly time and labor costs, and is not conducive to improving assembly efficiency.

[0007] In summary, traditional technical solutions have shortcomings in terms of flexible switching between multiple working modes, concentric positioning of stator and rotor assembly, and automatic adjustment. There is an urgent need for an assembly limit mechanism that is simple in structure, easy to operate, and can meet the requirements of multiple mode switching and high-precision positioning. Utility Model Content

[0008] The present invention aims to solve the technical problems existing in the prior art or related technologies.

[0009] This utility model relates to a limiting mechanism for stator and rotor assembly, specifically a device capable of multi-mode clamping, limiting, and concentric positioning assembly of stator and rotor, applicable to stator and rotor assembly operations in fields such as motors.

[0010] This utility model includes a positioning seat, a heavy-duty sleeve, and a lever connecting claw. The positioning seat has a shaft that passes through and fits inside the lever connecting claw. The positioning seat supports the entire device. The lever connecting claw is rotatably mounted on its surface via the shaft. One end of the lever connecting claw is rotatably connected to the positioning seat, and the other end is fixedly connected to a limiting clamp. The limiting clamp has several clamping ears on its surface for supporting, limiting, and clamping the stator. The heavy-duty sleeve is slidably fitted inside the positioning seat. Its outer circumference has threads that connect to a rotating cap. The rotation of the rotating cap is used to adjust the height and pressure of the clamping device. The inner side of the heavy-duty sleeve has a guide slope and a groove. A wedge is slidably installed in the groove. One side of the wedge has a slope that slides against the guide slope, and the other side has a clamping groove for conforming to the rotor shaft surface. The outer periphery of the heavy sleeve is rotatably connected to one end of the lever pawl by a fixedly installed linkage ear. The horizontal arrangement of the linkage ear enables the synchronous deflection action of the lever pawl. The lever pawl and linkage ear are of the same number and are connected in a one-to-one correspondence. The clamping ear is of several and is evenly divided into multiple groups and fixed to the surface of each limiting clamping rod.

[0011] Multi-mode clamping and limiting: Through the coordinated cooperation of the positioning seat and the heavy sleeve seat, the stator and rotor shafts are clamped and limited by the limiting clamp rod and the inclined wedge respectively. It can freely switch between independent rotor assembly mode and stator assembly mode, and supports concentric positioning assembly of stator and rotor, realizing the flexible use of multiple working modes; the top surface of the inclined wedge abuts against the top surface of the inner cavity of the rotating cap.

[0012] Automatic centering and clamping: The cooperation between the inclined wedge, guide slope, and sliding groove allows the inclined wedge to move radially along the guide slope during rotor assembly, thereby clamping the rotor shaft and achieving automatic centering. During stator assembly, the clamping lugs on the limiting clamping rod, through the stator's own weight and the deflection action of the lever connecting claw, synchronously clamp the stator's outer circumference, and the arc-shaped clamping lug design achieves precise positioning and support of the stator; one side of the inclined wedge has an inclined surface that slides against the guide slope surface, and the other side of the inclined wedge has a clamping groove arranged vertically along the axis, which is used for close clamping of the rotor shaft surface.

[0013] Adjustment Function and Adaptability: The screw cap is connected to the weighted sleeve via threads. Rotating the screw cap adjusts the height and pressure of the clamping device to accommodate stators or rotors of different sizes. The clamping lugs are designed with progressively increasing sizes to accommodate stators of different diameters. The center of the arc-shaped structure is coaxial with the weighted sleeve, ensuring a close fit and uniformity during clamping.

[0014] Stable Structure and Synchronous Action: The heavy-duty sleeve adopts a metal counterweight cylindrical structure with sleeve holes on both the inner and outer sides for the rotor shaft and stator, ensuring the overall structural stability of the device. Through the horizontal radial arrangement of the connecting lugs, the heavy-duty sleeve and the lever claw achieve synchronous deflection. The limiting clamps can be evenly distributed along the circumference of the heavy-duty sleeve, ensuring the smoothness and efficiency of the assembly operation.

[0015] The beneficial effects achieved by this utility model are as follows:

[0016] 1. In this utility model, the stator and rotor shafts are clamped and limited by the limiting clamp rods and inclined wedges on the surfaces of the positioning seat and the heavy sleeve seat, respectively. It can freely switch between two working modes to work independently, and can also be used for concentric positioning assembly of the rotor and stator. Multiple working modes can be flexibly switched and used.

[0017] 2. In this utility model, the cooperation of the inclined wedge, the guide inclined surface, and the sliding groove enables radial movement of the clamping action during rotor assembly, ensuring stable clamping and automatic centering of the rotor shaft. The linkage lug enables the automatic deflection movement of the lever claw, ensuring the horizontal clamping action of the limit clamp rod, thereby ensuring the concentricity of the stator and rotor during assembly and achieving automatic centering of the stator and rotor. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0019] Figure 2 This is an exploded structural diagram of one embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the positioning seat according to an embodiment of the present invention;

[0021] Figure 4 This is an exploded view of the surface structure of the heavy-duty sleeve according to an embodiment of the present invention.

[0022] Figure label:

[0023] 100. Positioning seat; 110. Lever connecting claw; 120. Limiting clamp; 111. Shaft; 121. Clamping lug;

[0024] 200. Heavy sleeve seat; 210. Rotary cap; 220. Angled wedge; 230. Linking lug; 201. Thread; 202. Guide bevel; 203. Slide groove. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0026] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0027] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, a limiting mechanism for stator and rotor assembly.

[0028] like Figures 1 to 4 As shown, this utility model relates to a limiting mechanism for assembling stator and rotor, including a positioning seat 100, a heavy sleeve seat 200, a lever connecting claw 110 and its cooperating components.

[0029] Positioning seat 100: The surface of the positioning seat 100 is provided with a shaft 111 that passes through and is sleeved inside the lever connecting claw 110. The positioning seat 100 is used to provide structural support for the overall device. Several lever connecting claws 110 are rotatably mounted on the surface of the positioning seat 100 via the shaft 111. One end of the lever connecting claw 110 is connected to the shaft 111, and the other end is fixedly connected to a limiting clamping rod 120. Several clamping ears 121 are evenly provided on the surface of the limiting clamping rod 120. The clamping ears 121 are arc-shaped and are used to fit against the outer periphery of the stator to achieve clamping and limiting. The number of clamping ears 121 is several and they are evenly divided into multiple groups and fixed to the surface of each limiting clamping rod 120.

[0030] The heavy-duty sleeve 200 is slidably sleeved on the inner side of the positioning seat 100. Its outer circumference is provided with threads 201, which are used to engage the rotating cap 210. The rotating cap 210 is used to adjust the height and pressure of the clamping assembly. The inner side of the heavy-duty sleeve 200 is provided with a guide slope 202 and a sliding groove 203. A wedge 220 is slidably installed in the sliding groove 203. One side of the wedge 220 has a slope that slides against the guide slope 202, and the other side has a vertically arranged clamping groove for fitting and clamping the surface of the rotor shaft. The top surface of the wedge 220 abuts against the top surface of the inner cavity of the rotating cap 210. One side of the wedge 220 has a slope that slides against the surface of the guide slope 202, and the other side of the wedge 220 has a clamping groove arranged vertically along the axial direction for fitting and clamping the surface of the rotor shaft.

[0031] Linkage ear 230: Fixedly installed on the outer periphery of the heavy sleeve 200, the linkage ear 230 is arranged in a horizontal radial direction and is rotatably connected to one end of the lever connecting claw 110, used to drive the lever connecting claw 110 to deflect when the heavy sleeve 200 moves downward; the lever connecting claw 110 and the linkage ear 230 are the same in number and connected in a one-to-one correspondence.

[0032] Specific working methods

[0033] Rotor assembly mode: The rotor shaft is fitted onto the inner side of the heavy-duty sleeve 200, and the screw cap 210 is tightened, causing the screw cap 210 to press downward against the inclined wedge 220. The inclined wedge 220 moves downward along the guide inclined surface 202 and the sliding groove 203. As the inclined wedge 220 moves downward, the interaction between its inclined surface and the guide inclined surface 202 generates a radial clamping motion, thereby clamping the rotor shaft and achieving stable positioning and assembly of the rotor shaft.

[0034] Stator assembly mode: The stator is placed on the top surface of the rotating cap 210. The weight of the stator causes the weighted sleeve 200 to descend. This descent of the weighted sleeve 200 deflects the lever pawl 110 via the connecting lug 230, causing the limiting clamp 120 to move horizontally. The clamping lugs 121 on the surface of the limiting clamp 120 simultaneously clamp the outer periphery of the stator, providing limitation and support for the bottom and outer periphery of the stator. The rotating cap 210 can be rotated and adjusted according to actual needs to accommodate the assembly requirements of stators of different sizes.

[0035] Concentric assembly mode of stator and rotor: During the concentric positioning and assembly of the stator and rotor, the rotor shaft is first clamped and positioned by the inclined wedge 220, fixing the rotor shaft inside the heavy sleeve 200. Subsequently, the weight of the stator causes the heavy sleeve 200 to continue to descend, the connecting lug 230 drives the lever connecting claw 110 to deflect, and the clamping lug 121 of the limiting clamping rod 120 clamps and guides the outer periphery of the stator, so as to maintain concentricity during the assembly of the stator and rotor and ensure assembly accuracy.

[0036] In another optimized structure, the clamping lugs 121 gradually increase in size along the surface of the limiting clamping rod 120. Each clamping lug 121 can achieve multi-point distributed clamping during stator assembly, further improving clamping stability and contact uniformity. At the same time, the arc-shaped design of the clamping lugs 121 ensures that their centers are coaxial with the heavy sleeve 200, thereby ensuring the fit and precision between the clamping lugs 121 and the outer periphery of the stator during clamping, and optimizing the assembly effect.

[0037] Working principle and usage process of this utility model:

[0038] In the rotor assembly mode: the rotor shaft is sleeved inside the heavy sleeve 200, and the screw cap 210 is manually screwed in. When the screw cap 210 is tightened, the inclined wedge 220 is pressed down, so that the inclined wedge 220 moves down along the guide inclined surface 202 and the slide groove 203. During the downward movement, the inclined wedge 220 moves radially due to the action of the inclined surface to clamp the rotor shaft, which facilitates the rotor assembly work.

[0039] In the stator assembly mode, the stator is placed directly on the top surface of the swivel cap 210. Under the downward pressure of the stator's gravity, the heavy sleeve 200 moves downward. The connecting lug 230 drives the lever connecting claw 110 to deflect. The lever connecting claw 110 deflects and limits the clamping rod 120 and the clamping lug 121 to perform synchronous clamping work on the outer periphery of the stator, thus providing tooling clamping for the stator. Furthermore, the swivel cap 210 can be adjusted in height by rotating on the surface of the heavy sleeve 200 to ensure that the swivel cap 210 is in contact with the bottom surface of the stator. During this process, the corresponding clamping lug 121 clamps the outer periphery of the stator, achieving synchronous support and clamping limit on the bottom surface and outer periphery of the stator.

[0040] In the positioning and assembly mode of the rotor and stator, after the stator is clamped by the inclined wedge 220 on the surface of the heavy sleeve 200, the heavy sleeve 200 is pressed down by the gravity of the stator and the heavy sleeve 200. Then, the lever connecting claw 110 is deflected by the linkage ear 230, so that the limiting clamping rod 120 moves in a horizontal direction. During the assembly of the stator with the rotor surface, the clamping ear 121 is used to guide and limit the stator, so as to maintain the precise concentric assembly of the stator and the rotor during the assembly process.

[0041] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A limiting mechanism for assembling a stator and rotor, characterized in that, include: The positioning seat (100) and the heavy sleeve (200) are provided with a shaft (111) that passes through and is sleeved inside the lever pawl (110). The heavy sleeve (200) is slidably sleeved inside the positioning seat (100). A connecting ear (230) is fixedly installed on the surface of the heavy sleeve (200), and the connecting ear (230) is rotatably connected to one end of the lever pawl (110). The other end of the claw (110) is fixedly connected to a limiting clamping rod (120). The surface of the limiting clamping rod (120) is provided with a clamping ear (121). The outer periphery of the heavy sleeve (200) is provided with threads (201) and is adapted to be fitted with a rotating cap (210). The inner side of the heavy sleeve (200) is provided with a guide slope (202) and a sliding groove (203). The inner side of the sliding groove (203) is slidably installed with a wedge (220). The top surface of the wedge (220) abuts against the top surface of the inner cavity of the rotating cap (210).

2. The limiting mechanism for stator and rotor assembly according to claim 1, characterized in that, The guide slope (202) and the slide groove (203) are arranged at an angle. One side of the inclined wedge (220) is provided with an inclined surface that slides against the surface of the guide slope (202), and the other side of the inclined wedge (220) is provided with a clamping groove arranged in a vertical axis. The clamping groove is used for the contact clamping of the rotor shaft surface.

3. The limiting mechanism for stator and rotor assembly according to claim 1, characterized in that, The connecting lugs (230) are arranged in a horizontal radial direction. The lever connecting claws (110) and the connecting lugs (230) are of the same number and connected one-to-one, and are evenly distributed in a circumferential direction on the outer periphery of the heavy sleeve (200).

4. The limiting mechanism for stator and rotor assembly according to claim 1, characterized in that, The counterweight sleeve (200) is a metal counterweight cylinder structure. Both the counterweight sleeve (200) and the rotating cap (210) have sleeve holes for rotor shaft sleeve connection on their inner sides.

5. A limiting mechanism for stator and rotor assembly according to claim 1, characterized in that, The number of clamps (121) is several and they are divided into multiple groups and fixed to the surface of each limiting clamp (120). Each group of limiting clamps (120) increases in size from top to bottom along the surface of the limiting clamp (120).

6. A limiting mechanism for stator and rotor assembly according to claim 1, characterized in that, The clamp (121) has an arc-shaped structure, and the center of the arc surface is coaxial with the heavy sleeve (200).

Images