Motor stator dust removal mechanism

Abstract

The utility model provides a motor stator dust removal mechanism, and belongs to the technical field of machinery. The problem that an existing mechanism is large in manufacturing difficulty is solved. The motor stator dust removal mechanism comprises a rack, a telescopic air cylinder arranged on the rack and a housing vertically arranged on one side of the rack, at least one nozzle is installed at the top of the housing, an air inlet and an air outlet of the nozzle are formed in the interior and the exterior of the housing respectively, and a dust suction connector is arranged on one side of the housing. The cover shell comprises an upper cover body and a lower cylinder matched with the upper cover body in shape and size. The upper cover body is connected outside the upper end of the lower cylinder body in a sleeving mode, and the upper cover body and the lower cylinder body are sealed through a rubber ring. The dust extraction interface is arranged on the upper cover body; a piston rod of the telescopic cylinder is fixedly connected with the upper cover body through a connecting block; a guide block capable of sliding up and down is arranged on the machine frame and fixedly connected with the outer wall of the lower cylinder body, and a locking structure enabling the guide block to be locked at the sliding position is arranged between the connecting block and the guide block. The motor stator dust removal mechanism can reduce the manufacturing difficulty.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a dust removal mechanism, particularly a dust removal mechanism for motor stator. Background Technology

[0002] The stator is the stationary part of an electric motor or generator. It mainly consists of a stator core and coils wound around the stator core. During the stator assembly process, dust can adhere to the stator due to the exposed environment. Therefore, before press-fitting the stator, appropriate equipment is usually installed to remove dust from the stator.

[0003] Existing dust removal equipment, such as the dust removal device for a motor stator and tooling disclosed in the Chinese Patent Database (application number: 202211616412.9), includes a frame, a transmission mechanism, a clamping mechanism, a dust removal mechanism, and a dust collection mechanism. One side of the frame is equipped with a transmission mechanism for transporting the stator and stator tooling. The transmission mechanism includes a transmission line and a lifting mechanism located within the transmission line. A worktable is located on one side of the transmission mechanism, and a clamping mechanism is located on the worktable. Above the clamping mechanism is the dust removal mechanism, and below it is the dust collection mechanism. The dust removal mechanism includes an upper cover, a lifting mechanism for driving the upper cover to rise and fall, an air blowing cleaning mechanism, and an electrostatic dust removal mechanism. The cleaning mechanism and the electrostatic dust removal mechanism are both connected to an external air source via ducts. The external air source includes a compressor and a dryer connected in sequence. The outside air is pressurized, dried, and then blown to remove dust, which can increase the cleaning power while reducing damage to the stator. The dust collection mechanism includes a lower cover and a second lifting mechanism that drives the lower cover to rise and fall. The lower cover is slidably connected to the worktable via the second lifting mechanism. During dust removal, the upper cover and the lower cover close to form a closed dust collection chamber. The lower cover has a conical structure that is larger at the top and smaller at the bottom. A dust collection duct is connected to its bottom. The conical structure of the lower cover provides good dust collection effect. The dust collection duct is connected to a vacuum cleaner.

[0004] In the aforementioned dust removal device, the dust removal chamber is formed by an upper cover and a lower cover, with the upper cover being movable and the lower cover being fixed. Due to the design of the dust removal chamber, the fitting gap between the upper cover and the lower cover must be very small. This places high demands on the sliding accuracy of the upper cover and the fitting accuracy between the upper and lower covers, thus greatly increasing the manufacturing difficulty of the dust removal device. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a dust removal mechanism for motor stators that reduces manufacturing difficulty.

[0006] The objective of this utility model can be achieved through the following technical solution: A dust removal mechanism for a motor stator, comprising a frame, a telescopic cylinder mounted on the frame, and a cover vertically mounted on one side of the frame. At least one nozzle is installed on the top of the cover, with the air inlet and outlet of the nozzle respectively located inside and outside the cover. A dust extraction interface is provided on one side of the cover. The cover comprises an upper cover and a lower cylinder whose shape and size match the upper cover. The upper cover is fitted over the upper end of the lower cylinder, and the two are sealed by a rubber ring. The dust extraction interface is located on the upper cover. The piston rod of the telescopic cylinder is fixedly connected to the upper cover via a connecting block. A guide block that can slide up and down is provided on the frame. The guide block is fixedly connected to the outer wall of the lower cylinder, and a locking structure is provided between the connecting block and the guide block to lock the guide block in the sliding position.

[0007] During assembly, the stator is held by a clamp, which is supported upwards by the base plate; the dust extraction interface is connected to the exhaust fan through a pipeline; and the air inlet of the nozzle is connected to the air supply equipment through an air pipe.

[0008] During dust removal, the telescopic cylinder moves the entire cover down and presses it onto the base plate. Then, the nozzles spray air towards the stator to blow out the attached dust, which floats inside the cover. Finally, the exhaust fan sucks away the floating dust.

[0009] By sliding the guide block to raise and lower the lower cylinder, the overall height of the cover is changed, thereby changing the distance between the nozzle and the stator, so that stators of different heights can achieve good dust removal effect, which is practical.

[0010] Meanwhile, the entire housing, consisting of the upper cover and the lower cylinder, is driven to rise and fall by a telescopic cylinder, and the upper cover and the lower cylinder are sealed by a rubber ring. This effectively reduces the accuracy of the housing's lifting and lowering, as well as the fitting accuracy of the upper cover and the lower cylinder, thereby reducing the requirements for assembly and processing accuracy and lowering the manufacturing difficulty of this dust removal mechanism.

[0011] In the aforementioned motor stator dust removal mechanism, the locking structure includes a vertically penetrating connecting hole in the guide block, a corresponding threaded hole on the connecting block, a bolt inserted into the connecting hole, the bolt shank screwed into the threaded hole, and the bolt head pressed against the bottom of the guide block. This design offers advantages such as simple structure and convenient installation.

[0012] As another option, in the above-mentioned motor stator dust removal mechanism, the locking structure includes a screw vertically formed at the bottom of the connecting block, a corresponding through hole on the guide block, the lower end of the screw passing through the through hole and screwed into a nut, and the nut pressing against the bottom of the guide block.

[0013] In the aforementioned motor stator dust removal mechanism, the connecting block slides with the frame to improve the sliding accuracy of the cover and make the dust removal mechanism operate more stably.

[0014] In the aforementioned motor stator dust removal mechanism, a linear guide rail is vertically fixed on the frame. Both the connecting block and the guide block are sliders that match the linear guide rail, and both are slidably mounted on the linear guide rail. The simultaneous installation of the connecting block and the guide block on the linear guide rail, forming a sliding fit with the frame, offers advantages such as simple structure and stable operation.

[0015] In the aforementioned motor stator dust removal mechanism, an annular groove coaxial with the lower cylinder is provided on the upper outer wall of the lower cylinder, the rubber ring is located in the annular groove, and the outer wall of the rubber ring is in contact with and sealed to the inner wall of the upper cover.

[0016] In the aforementioned motor stator dust removal mechanism, an annular sealing gasket, matching the shape and size of the lower cylinder, is affixed and fixed to the bottom surface of the lower cylinder. During use, the sealing gasket contacts the bottom plate to form a seal, preventing external gas from entering the casing during dust extraction.

[0017] Compared with existing technologies, this motor stator dust removal mechanism has the following advantages:

[0018] 1. By sliding the guide block to drive the lower cylinder to rise and fall, the overall height of the cover is changed, thereby changing the distance between the nozzle and the stator, so that stators of different heights can achieve a better dust removal effect, which is practical.

[0019] 2. The entire housing, consisting of the upper cover and the lower cylinder, is driven to rise and fall by a telescopic cylinder. Furthermore, the upper cover and the lower cylinder are sealed by a rubber ring. This effectively reduces the accuracy of the housing's lifting and lowering, as well as the fitting accuracy between the upper cover and the lower cylinder. Consequently, it effectively reduces the requirements for assembly and processing accuracy, thereby lowering the manufacturing difficulty of this dust removal mechanism. Attached Figure Description

[0020] Figure 1 This is a diagram showing the usage status of the motor stator dust removal mechanism.

[0021] Figure 2 This is a cross-sectional schematic diagram of the dust removal mechanism for the motor stator.

[0022] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle.

[0023] Figure 4 This is a schematic diagram of the connection between the guide block and the connecting block.

[0024] In the diagram, 1 is the frame; 2 is the telescopic cylinder; 3 is the nozzle; 4 is the cover; 4a is the dust extraction interface; 4b is the upper cover; 4c is the lower cylinder; 4d is the rubber ring; 5 is the connecting block; 6 is the guide block; 7 is the base plate; 8 is the bolt; 9 is the linear guide rail; and 10 is the annular sealing gasket. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] Example 1: As Figure 1 As shown, the stator dust removal mechanism of this motor includes a frame 1, a telescopic cylinder 2 mounted on the frame 1, and a cover 4 vertically mounted on one side of the frame 1.

[0027] in,

[0028] The bottom of the casing 4 is open, and at least one nozzle 3 is installed on the top. The air inlet and outlet of the nozzle 3 are respectively located inside and outside the casing 4. A dust extraction interface 4a is provided on one side of the casing 4. The installation method of the nozzle 3 is existing and will not be described in detail here. In the actual product, the axes of the air inlet and outlet are both set downwards; the axis of the dust extraction interface 4a is set horizontally, and there are 8 bolt holes arranged in a rectangle around the dust extraction interface 4a to facilitate the connection of the dust extraction interface 4a to the dust extraction pipeline.

[0029] like Figures 1 to 3 As shown, the housing 4 includes an upper housing 4b and a lower cylindrical body 4c whose shape and size match the upper housing 4b. The upper housing 4b and the lower cylindrical body 4c are coaxially arranged, with the lower cylindrical body 4c located below the upper housing 4b. The nozzle 3 and the dust extraction port 4a are both located on the upper housing 4b. The upper housing 4b is fitted over the upper end of the lower cylindrical body 4c, and a rubber ring 4d forms a seal between them. The piston rod of the telescopic cylinder 2 is fixedly connected to the upper housing 4b via a connecting block 5.

[0030] The frame 1 is provided with a guide block 6 that can slide up and down. The guide block 6 is fixed to the outer wall of the lower cylinder 4c, and a locking structure is provided between the connecting block 5 and the guide block 6 to lock the guide block 6 in the sliding position.

[0031] During assembly, the stator is held by a clamp, which is supported upward by the base plate 7; the dust extraction interface 4a is connected to the exhaust fan through a pipeline; the air inlet of the nozzle 3 is connected to the air supply equipment through an air pipe.

[0032] During dust removal, the telescopic cylinder 2 drives the entire cover 4 to move down and press it onto the base plate 7. Then, the nozzle 3 sprays air towards the stator to blow out the attached dust and make it float inside the cover 4. Finally, the exhaust fan is used to suck away the floating dust.

[0033] By sliding the guide block 6 to drive the lower cylinder 4c to rise and fall, the overall height of the cover 4 is changed, thereby changing the distance between the nozzle 3 and the stator, so that stators of different heights can all obtain a good dust removal effect, which is practical.

[0034] Meanwhile, the entire housing 4, composed of the upper cover 4b and the lower cylinder 4c, is driven to rise and fall by the telescopic cylinder 2. Furthermore, the upper cover 4b and the lower cylinder 4c are sealed by a rubber ring 4d. This effectively reduces the lifting accuracy of the housing 4 and the fitting accuracy between the upper cover 4b and the lower cylinder 4c, thereby effectively reducing the requirements for assembly and processing accuracy and reducing the manufacturing difficulty of this dust removal mechanism.

[0035] In this embodiment,

[0036] The locking structure includes a vertically penetrating connecting hole in the guide block 6, and a corresponding threaded hole on the connecting block 5. A bolt 8 passes through the connecting hole, with the shank of the bolt 8 screwed into the threaded hole, and the head of the bolt 8 pressed against the bottom of the guide block 6. This design offers advantages such as simple structure and convenient installation.

[0037] To further explain, such as Figure 1 and Figure 4 As shown, the connecting block 5 slides with the frame 1 to improve the sliding accuracy of the cover 4 and make the dust removal mechanism operate more stably. Specifically, a linear guide rail 9 is vertically fixed on the frame 1. Both the connecting block 5 and the guide block 6 are sliders that match the linear guide rail 9, and both the connecting block 5 and the guide block 6 are slidably mounted on the linear guide rail 9. The simultaneous installation of the connecting block 5 and the guide block 6 on the linear guide rail 9 and their sliding engagement with the frame 1 has the advantages of simple structure and stable operation. Preferably, there are two linear guide rails 9, distributed on both sides of the cylinder piston rod. Each linear guide rail 9 is equipped with one of the aforementioned connecting blocks 5 and guide blocks 6.

[0038] The installation method of the rubber ring 4d is as follows: an annular groove coaxial with the lower cylinder 4c is opened on the upper outer wall of the lower cylinder 4c, the rubber ring 4d is located in the annular groove, and the outer wall of the rubber ring 4d contacts and seals with the inner wall of the upper cover 4b.

[0039] like Figure 1 and Figure 2 As shown, an annular sealing gasket 10, matching in shape and size to the lower cylinder 4c, is affixed and fixed to the bottom surface of the lower cylinder 4c, and the annular sealing gasket 10 is coaxially arranged with the lower cylinder 4c. In use, the sealing gasket contacts the aforementioned base plate 7 to form a seal, preventing external gas from entering the casing 4 during dust extraction. Preferably, the annular sealing gasket 10 is bonded and fixed to the lower cylinder 4c.

[0040] Example 2: The structure and principle of Example 2 are basically the same as those of Example 1. The difference is that the locking structure includes a screw formed vertically at the bottom of the connecting block 5, and a corresponding through hole is provided on the guide block 6. The lower end of the screw passes through the through hole and is screwed into the nut, and the nut is pressed against the bottom of the guide block 6.

[0041] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A dust removal mechanism for a motor stator, comprising a frame (1), a telescopic cylinder (2) mounted on the frame (1), and a cover (4) vertically mounted on one side of the frame (1), wherein at least one nozzle (3) is mounted on the top of the cover (4), the air inlet and air outlet of the nozzle (3) are respectively located inside and outside the cover (4), and a dust extraction interface (4a) is provided on one side of the cover (4), characterized in that, The cover (4) includes an upper cover (4b) and a lower cylinder (4c) whose shape and size match the upper cover (4b). The upper cover (4b) is fitted onto the upper end of the lower cylinder (4c) and the two are sealed by a rubber ring (4d). The dust extraction port (4a) is set on the upper cover (4b). The piston rod of the telescopic cylinder (2) is fixed to the upper cover (4b) through the connecting block (5). The frame (1) is provided with a guide block (6) that can slide up and down. The guide block (6) is fixed to the outer wall of the lower cylinder (4c), and a locking structure is provided between the connecting block (5) and the guide block (6) to lock the guide block (6) in the sliding position.

2. The dust removal mechanism for a motor stator according to claim 1, characterized by The locking structure includes a vertically penetrating connecting hole on the guide block (6), a corresponding threaded hole on the connecting block (5), a bolt (8) passing through the connecting hole, the shank of the bolt (8) being screwed into the threaded hole, and the head of the bolt (8) being pressed against the bottom of the guide block (6).

3. The dust removal mechanism for a motor stator according to claim 2, characterized by The locking structure includes a screw formed vertically at the bottom of the connecting block (5), and a corresponding through hole on the guide block (6). The lower end of the screw passes through the through hole and is screwed into a nut, and the nut is pressed against the bottom of the guide block (6).

4. The dust removal mechanism for a motor stator according to claim 1 or 2 or 3, characterized in that, The connecting block (5) slides into the frame (1).

5. The dust removal mechanism for a motor stator according to claim 1, characterized by A linear guide rail (9) is vertically fixed on the frame (1). The connecting block (5) and the guide block (6) are both sliders that match the linear guide rail (9), and the connecting block (5) and the guide block (6) are slidably set on the linear guide rail (9).

6. The dust removal mechanism for a motor stator according to claim 1, characterized by An annular groove coaxial with the lower cylinder (4c) is provided on the upper outer wall. The rubber ring (4d) is located in the annular groove, and the outer wall of the rubber ring (4d) is in contact with and sealed to the inner wall of the upper cover (4b).

7. The dust removal mechanism for a motor stator according to claim 1, characterized by An annular sealing gasket (10) with a shape and size matching the lower cylinder (4c) is attached to and fixed on the bottom surface of the lower cylinder (4c).

Images