Motor stator positioning block automatic adjusting device, adjusting method and motor

Abstract

The invention discloses a motor stator positioning block automatic adjusting device, an adjusting method and a motor, the adjusting device comprises a stator positioning block slidably arranged on a motor shell, and a first driving mechanism used for driving the stator positioning block to move on the motor shell for positioning position adjustment is arranged on the motor shell. An intermittent sealing block is arranged on the side, away from the motor stator, of the stator positioning block, the intermittent sealing block is of a variable cross-section structure matched with the corresponding sealing clearance, and a second driving mechanism used for driving the intermittent sealing block to move to seal the fit clearance between the stator positioning block and the motor shell is arranged on the motor shell; the stator positioning block can be adjusted according to positioning positions of different stators relative to the casing, so that casing processing data are unified, casing types are simplified, sealing control can be performed in time aiming at different positioning positions during adjustment, and machine operation safety is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of motor assembly and positioning technology, specifically to an automatic adjustment device, adjustment method, and motor for motor stator positioning blocks. Background Technology

[0002] For large electric motors, especially magnetic levitation motors, the accuracy of stator positioning is paramount, affecting rotor rotation, overall energy consumption, assembly precision, and even the overall modal coefficients of the unit, thus influencing its operational status. Currently, with the increasing power and variety of large electric motor models, stator positioning methods differ for different types of motors. At present, large, high-power motors primarily use positioning ribs machined into the motor housing to position different types of stators.

[0003] As the number of motor models increases, housings with different positioning rib positions need to be machined to match different types of stators. This leads to a gradual increase in the types of housings and stators, increasing the complexity and error rate of assembly production. Furthermore, a large amount of data needs to be stored during subsequent design and manufacturing processes. To address these issues, it is necessary to simplify the data for housing and stator types and provide customized positioning devices that can be automatically adjusted for housings or stators.

[0004] Chinese patent document CN104753261A discloses a method for fixing and adjusting stator positioning ribs, which uses screws to fix and adjust V-shaped ribs and positioning ribs in confined spaces; patent document CN106849537A discloses an adjustable positioning claw for stator assembly lines, which is designed with an arc-shaped adjusting rack for positioning stators on stator production lines. It works in conjunction with a rotatable adjusting plate to adjust the position of the stator positioning claw to match different stator types. Both methods can only adjust the position during the assembly stage and then fix the positioning position. They cannot be adjusted in time during motor operation and have poor adaptability, only suitable for specific motor specifications and unable to be adjusted flexibly. Summary of the Invention

[0005] Technical objective: To address the shortcomings of existing motor stator positioning methods, this invention discloses an automatic adjustment device, adjustment method, and motor for motor stator positioning blocks.

[0006] Technical solution: To achieve the above technical objectives, the present invention adopts the following technical solution: An automatic adjustment device for a motor stator positioning block includes a stator positioning block slidably disposed on a motor housing. A first drive mechanism is provided on the motor housing for moving the stator positioning block on the motor housing to adjust its positioning position. An intermittent sealing block is provided on the side of the stator positioning block away from the motor stator for sealing the gap between the stator positioning block and the motor housing. The intermittent sealing block has a variable cross-section structure that matches the corresponding sealing gap. A second drive mechanism is provided on the motor housing for moving the intermittent sealing block to seal the mating gap between the stator positioning block and the motor housing.

[0007] Preferably, the intermittent sealing block of the present invention has a wedge-shaped structure with a right-angled triangle cross section, and the surface of the intermittent sealing block that mates with the stator positioning block adopts a stepped inclined surface. When the stator positioning block moves, the width of the sealing gap changes, and the intermittent sealing block is driven to move up and down to seal by the second driving mechanism.

[0008] Preferably, both the second drive mechanism and the second drive mechanism of the present invention are driven by a gear shaft and a rack, with the rack correspondingly disposed on the stator positioning block and the intermittent sealing block; the gear shaft of the second drive mechanism is connected to the gear shaft of the first drive mechanism by a synchronous belt or sprocket, and rotates synchronously; the teeth on the gear shaft of the second drive mechanism are arranged at equal intervals along the circumferential direction of the gear shaft, and intermittent drive is formed by the gear shaft of the second drive mechanism and the corresponding rack; when the first drive mechanism drives the stator positioning block to move, the second drive mechanism drives the intermittent sealing block to move, and the intermittent sealing block fills and seals the gap between the stator positioning block and the motor housing after the stator positioning block moves.

[0009] Preferably, the stator positioning block of the present invention is provided with a detection element for detecting the stator state at the mating surface with the motor stator. The detection element includes one or more of a temperature sensor, a distance measurement sensor, a magnetometer, and a sound sensor.

[0010] Preferably, a fixing mechanism for fixing the stator positioning block is provided between the stator positioning block and the motor housing of the present invention. The fixing mechanism is a mounting screw passing through the stator positioning block or a thrust block provided on the surface of the intermittent sealing block away from the stator positioning block. When the stator positioning block is fixed by using the thrust block, the intermittent sealing block slides with the thrust block along the direction of movement during sealing.

[0011] Preferably, the rotation adjustment device of the present invention further includes an external control module for controlling the operation of the first drive mechanism and the second drive mechanism. The stator positioning block is provided with a distance detection element or a pressure sensor on the surface that mates with the motor stator. The external control module controls the operation of the first drive mechanism and the second drive mechanism through the electrical signal fed back by the distance detection element or the pressure sensor, thereby adjusting the position of the stator positioning block.

[0012] This invention discloses a method for adjusting the positioning block of a motor stator, using the aforementioned adjustment device. The first drive mechanism drives the stator positioning block to move on the motor housing to adjust its positioning position relative to the motor stator. After the stator positioning block moves, the intermittent sealing block is moved by the second drive mechanism to seal the mating gap between the stator positioning block and the motor housing.

[0013] Preferably, both the first driving mechanism and the second driving mechanism of the present invention are driven by a gear shaft and a rack. When the first driving mechanism drives the stator positioning block to move, the second driving mechanism synchronously drives the intermittent sealing block to move. The gear shaft of the second driving mechanism intermittently drives the corresponding rack to move the intermittent sealing block. When the stator positioning block is adjusted in position, the gap is filled and sealed.

[0014] Preferably, the present invention uses a thrust block to position and fix the stator positioning block, and an external control module controls the operation of the first drive mechanism and the second drive mechanism; the external control module controls the operation of the first drive mechanism and the second drive mechanism according to the electrical signal fed back by the distance detection element or pressure sensor between the stator positioning block and the mating surface of the motor stator, so as to realize the automatic adjustment of the position of the stator positioning block.

[0015] The present invention also discloses an electric motor, wherein the motor stator is positioned using the above-described adjustment device.

[0016] Beneficial effects: The automatic adjustment device, adjustment method, and motor for motor stator positioning blocks disclosed in this invention have the following beneficial effects: 1. The present invention automatically adjusts the position of the stator positioning block through the first driving mechanism, and combined with the sensor and external control module, realizes the precise automation of stator positioning, reduces manual operation error, and improves assembly efficiency and consistency.

[0017] 2. By setting up an intermittent sealing block with a variable cross-section and a second driving mechanism, the present invention can automatically and promptly seal the newly generated gap after each position adjustment of the stator positioning block, effectively preventing foreign objects such as dust and moisture from entering the motor, thereby improving the motor's protection level and operational reliability.

[0018] 3. Both the first and second drive mechanisms of the present invention use gear shafts and racks as drive elements, and link the two drive mechanisms together through a synchronous belt or sprocket to achieve coordinated operation of stator positioning block movement and gap sealing; the spacing design of the gear teeth on the gear shaft of the second drive mechanism ensures perfect timing coordination between sealing action and positioning adjustment, reducing the risk of collision or interference between structures.

[0019] 4. The stator positioning block of the present invention can integrate a variety of sensors to monitor the stator working status (such as temperature, position, electromagnetic characteristics, etc.) in real time, and realize intelligent adjustment and fault warning based on feedback through an external control module, thereby improving the intelligence level and maintenance convenience of the motor. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0021] Figure 1 This is a cross-sectional structural schematic diagram of the adjustment device of the present invention.

[0022] Figure 2 This is a schematic diagram of the installation structure of the stator positioning block and the motor housing of the present invention.

[0023] Figure 3 This is a schematic diagram of the overall structure of the adjustment device of the present invention.

[0024] Figure 4 This is a schematic diagram of the gear shaft structure of the second drive mechanism of the present invention.

[0025] Figure 5 This is a schematic diagram of the structure of the present invention, which uses a thrust block to fix the stator positioning block.

[0026] Figure 6 This is a flowchart of the stator positioning block adjustment method of the present invention.

[0027] Among them, 1-motor housing, 2-stator positioning block, 3-motor stator, 4-intermittent sealing block, 5-gear shaft, 6-rack, 7-detection element, 8-mounting screw, 9-thrust block. Detailed Implementation

[0028] Reference will now be made in detail to embodiments of the present disclosure, one or more of which are set forth herein. Each embodiment and example is provided by way of explanation of the apparatus, composition, and materials of the present disclosure, and not by way of limitation. Rather, the following description provides convenient illustrations for implementing exemplary embodiments of the present disclosure. Indeed, it will be apparent to those skilled in the art that various modifications and variations can be made to the teachings of the present disclosure without departing from the scope or spirit of the present disclosure. Example

[0029] like Figure 1As shown, this embodiment provides an automatic adjustment device for a motor stator positioning block, including a stator positioning block 2 slidably disposed on a motor housing 1. A first drive mechanism is provided on the motor housing 1 to drive the stator positioning block 2 to move on the motor housing 1, thereby adjusting its positioning position relative to the motor stator 3. The moving direction of the stator positioning block 2 is usually radial or axial, depending on the installation requirements of the motor stator.

[0030] An intermittent sealing block 4 is provided on the side of the stator positioning block 2 away from the motor stator 3. The intermittent sealing block 4 adopts a variable cross-section structure, and its cross-sectional shape matches the sealing gap between the stator positioning block 2 and the motor housing 1. A second drive mechanism is also provided on the motor housing 1 to drive the intermittent sealing block 4 to move, so as to seal the mating gap between the stator positioning block 2 and the stator positioning block 2 after the position is adjusted.

[0031] Preferably, the intermittent sealing block 4 of the present invention has a wedge-shaped structure with a right-angled triangle cross section, and its surface that mates with the stator positioning block 2 is a stepped inclined surface. When the stator positioning block 2 moves, causing a change in the width of the sealing gap, the second drive mechanism drives the intermittent sealing block 4 to move up and down, thereby achieving dynamic sealing. Example

[0032] Based on Embodiment 1, the drive mechanism has been optimized. Both the first and second drive mechanisms are driven by a gear shaft 5 and a rack 6. The gear shaft 5 is connected to the motor, and the rack 6 is respectively set on the stator positioning block 2 and the intermittent sealing block 4.

[0033] like Figure 3 and Figure 4 As shown, the gear shaft 5 of the second drive mechanism is connected to the gear shaft 5 of the first drive mechanism via a synchronous belt or sprocket. This allows the motor to be connected using only the gear shaft 5 of the first drive mechanism, achieving synchronous rotation of both gear shafts. Specifically, the teeth on the gear shaft 5 of the second drive mechanism are arranged at equal intervals along the circumference, creating an intermittent drive with the corresponding rack 6. Thus, when the first drive mechanism drives the stator positioning block 2 to move, the second drive mechanism synchronously but intermittently drives the intermittent sealing block 4 to move. Once the stator positioning block 2 is adjusted, the intermittent sealing block 4 moves to the sealing position, filling and sealing the gap. The side of the intermittent sealing block 4 that mates with the stator positioning block 2 is made of a material that can deform and compress under stress, such as rubber, to ensure sealing and accommodate certain dimensional design errors. Example

[0034] This embodiment further enhances detection and fixation functions. A detection element 7 is provided at the mating surface between the stator positioning block 2 and the motor stator 3 to monitor the stator's operating status in real time. The detection element 7 may include one or more of a temperature sensor, distance measurement sensor, magnetometer, and sound sensor to monitor stator temperature, positional deviation, electromagnetic characteristics, or abnormal sounds.

[0035] A fixing mechanism is also provided between the stator positioning block 2 and the motor housing 1 to fix the stator positioning block after position adjustment. The fixing mechanism can be a mounting screw 8 passing through the stator positioning block 2. After fixing in this way, the position of the stator top block 2 cannot move automatically; for example... Figure 5 As shown, it can also be a thrust block set on the surface of the intermittent sealing block 4 away from the stator positioning block. When the thrust block is used, the movement of the intermittent sealing block 4 along the sealing direction forms a sliding fit with the thrust block, which not only achieves sealing but also assists in positioning. Moreover, the positioning position can be flexibly adjusted according to the motor's operating conditions during motor operation.

[0036] To achieve intelligent and automated adjustment of the stator positioning block position, the adjustment device of this invention further includes an external control module (not shown in the figure) for controlling the operation of the first drive mechanism and the second drive mechanism. A distance detection element or pressure sensor is provided on the surface where the stator positioning block 2 mates with the motor stator 3. Based on the electrical signals fed back from the sensors, the external control module determines the relative position or clamping force between the stator positioning block 2 and the motor stator 3, and automatically controls the operation of the first drive mechanism and the second drive mechanism to achieve precise and automatic adjustment of the stator positioning block position.

[0037] The specific adjustment strategy can be to pre-set the adjustment in the control system of the external control module. When the pressure or distance reaches a certain set limit, the position of the stator positioning block will be adjusted to ensure reliable fixation of the stator.

[0038] like Figure 6 As shown, this invention takes the use of a distance sensing element as an example. The distance sensing element detects the distance data of the stator positioning and compares and verifies it with the positioning data required by the technician. If there is an abnormality, adjustments are made. The first drive mechanism drives the stator positioning block 2 to move, and the gear shaft of the second drive mechanism rotates synchronously. Since the gear teeth are spaced along the circumferential direction, there is an interval in the drive of the corresponding rack, thereby reducing the risk of interference between the intermittent sealing block 4 and the stator positioning block, and completing the positioning adjustment. The distance sensing element collects measurement data and compares it with the set threshold. If there is an abnormality, an alarm is issued, and the position of the stator positioning block 2 is adjusted through the external control module. Example

[0039] This embodiment provides a method for adjusting the motor stator positioning block using the above-described adjustment device. The specific steps are as follows: The first drive mechanism drives the stator positioning block 2 to move on the motor housing 1, adjusting its positioning position relative to the motor stator 3.

[0040] After the stator positioning block 2 moves, the intermittent sealing block 4 is moved by the second drive mechanism to seal the newly formed fitting gap between the stator positioning block 2 and the motor housing 1.

[0041] Preferably, the drive mechanism employs a gear shaft 5 and a rack 6. When the first drive mechanism drives the stator positioning block 2 to move, the second drive mechanism synchronously drives the intermittent sealing block 4 to move via intermittent transmission, ensuring that gap sealing is achieved immediately after the position adjustment is completed.

[0042] Furthermore, when using thrust blocks to fix the stator positioning blocks, the external control module automatically controls the operation of the drive mechanism based on feedback from distance detection elements or pressure sensors, achieving fully automatic position adjustment and sealing. Example

[0043] This embodiment provides a motor that uses the automatic adjustment device for the motor stator positioning block described in any of the above embodiments. Through this device, the motor stator 3 can be quickly and accurately positioned and fixed, while ensuring the sealing of the internal structure of the motor housing, thus improving the overall performance and reliability of the motor.

[0044] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An automatic adjustment device for a motor stator positioning block, characterized in that, The device includes a stator positioning block (2) that is slidably disposed on the motor housing (1). A first drive mechanism is provided on the motor housing (1) for moving the stator positioning block (2) on the motor housing (1) to adjust its positioning position. An intermittent sealing block (4) is provided on the side of the stator positioning block (2) away from the motor stator (3) for sealing the gap between the stator positioning block (2) and the motor housing (1). The intermittent sealing block (4) has a variable cross-section structure that matches the corresponding sealing gap. A second drive mechanism is provided on the motor housing (1) for moving the intermittent sealing block to seal the mating gap between the stator positioning block (2) and the motor housing (1).

2. The automatic adjustment device for motor stator positioning blocks according to claim 1, characterized in that, The intermittent sealing block (4) has a wedge-shaped cross section with a right-angled triangle. The surface of the intermittent sealing block (4) that mates with the stator positioning block (2) is a stepped inclined surface. When the stator positioning block (2) moves, the width of the sealing gap changes. The intermittent sealing block (4) is moved up and down by the second drive mechanism to perform sealing.

3. The automatic adjustment device for motor stator positioning blocks according to claim 2, characterized in that, Both the second drive mechanism and the second drive mechanism are driven by gear shaft (5) and rack (6), with rack (6) correspondingly set on stator positioning block (2) and intermittent sealing block (4); the gear shaft (5) of the second drive mechanism is connected to the gear shaft (5) of the first drive mechanism by a synchronous belt or sprocket and rotates synchronously; the gear teeth on the gear shaft (5) of the second drive mechanism are arranged at equal intervals along the circumferential direction of the gear shaft, and intermittent drive is formed by the gear shaft (5) of the second drive mechanism and the corresponding rack (6); when the first drive mechanism drives the stator positioning block (2) to move, the second drive mechanism drives the intermittent sealing block (4) to move, and the intermittent sealing block (4) fills and seals the gap between the stator positioning block (2) and the motor housing (1) after the stator positioning block (2) moves.

4. The automatic adjustment device for motor stator positioning blocks according to claim 1, characterized in that, The stator positioning block (2) is provided with a detection element (7) for detecting the stator state at the mating surface with the motor stator (3). The detection element (7) includes one or more of the following: temperature sensor, distance measurement sensor, magnetometer, and sound sensor.

5. The automatic adjustment device for motor stator positioning blocks according to claim 1, characterized in that, A fixing mechanism for fixing the stator positioning block is provided between the stator positioning block (2) and the motor housing (1). The fixing mechanism is a mounting screw (8) that passes through the stator positioning block (2) or a thrust block (9) that is provided on the surface of the intermittent sealing block away from the stator positioning block. When the stator positioning block is fixed by using the thrust block (9), the intermittent sealing block (4) slides with the thrust block (9) along the direction of movement during sealing.

6. The automatic adjustment device for motor stator positioning blocks according to claim 5, characterized in that, The rotation adjustment device also includes an external control module for controlling the operation of the first drive mechanism and the second drive mechanism. The stator positioning block (2) is provided with a distance detection element or a pressure sensor on the surface that cooperates with the motor stator (3). The external control module controls the operation of the first drive mechanism and the second drive mechanism through the electrical signal fed back by the distance detection element or the pressure sensor, and adjusts the position of the stator positioning block (2).

7. A method for adjusting a motor stator positioning block, using the adjustment device described in any one of claims 1-6, characterized in that, The first drive mechanism drives the stator positioning block (2) to move on the motor housing (1) to adjust its positioning position relative to the motor stator (3); After the stator positioning block (2) moves, the intermittent sealing block (4) is driven to move by the second drive mechanism to seal the mating gap between the stator positioning block (2) and the motor housing (1).

8. The method according to claim 7, characterized in that, Both the first drive mechanism and the second drive mechanism are driven by a gear shaft (5) and a rack (6). When the first drive mechanism drives the stator positioning block (2) to move, the second drive mechanism drives the intermittent sealing block (4) to move synchronously. The gear shaft of the second drive mechanism intermittently drives the corresponding rack to move the intermittent sealing block. When the stator positioning block (2) is adjusted in position, the gap is filled and sealed.

9. The method according to claim 7, characterized in that, The stator positioning block is positioned and fixed using a thrust block. The external control module controls the operation of the first drive mechanism and the second drive mechanism. Based on the electrical signal fed back by the distance detection element or pressure sensor between the mating surfaces of the stator positioning block (2) and the motor stator (3), the external control module controls the operation of the first drive mechanism and the second drive mechanism to achieve automatic adjustment of the position of the stator positioning block.

10. An electric motor, characterized in that, The motor stator is positioned using the adjustment device described in any one of claims 1-6.

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