CN220172966U

CN220172966U - Plastic package motor

Info

Publication number: CN220172966U
Application number: CN202320971142.7U
Authority: CN
Inventors: 钱纪明; 钱昂峰
Original assignee: Shengzhou Lichi Motor Co ltd
Current assignee: Shengzhou Lichi Motor Co ltd
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2023-12-12
Anticipated expiration: 2033-04-25

Abstract

The utility model discloses a plastic package motor, which relates to plastic package motor equipment, and comprises a shell and a rotor assembly arranged in the shell, wherein an end cover seat is arranged at an opening of the shell, an end cover is arranged on the end cover seat, a pressing plate is arranged outside the shell, one end of the pressing plate is positioned above the end cover, external threads are arranged on the outer wall of the shell, internal threads which are in threaded connection with the external threads are arranged at the other end of the pressing plate, at least two groups of pressing plates are arranged at equal intervals, arc-shaped ratchet wheels are arranged between every two adjacent groups of pressing plates, pawls which are in positioning fit with the arc-shaped ratchet wheels are rotationally connected to the outer wall of the shell through supporting pieces, the end cover is installed through interference fit, when the disassembly and maintenance are carried out, personnel are required to seek proper prying points to pry the end cover from the end part of the plastic package stator shell, the personnel momentum of the disassembly mode is large, and certain damage is easily caused to the end surfaces and even the inside of the end cover of the plastic package stator shell in the disassembly process.

Description

Plastic package motor

Technical Field

The utility model relates to a plastic package motor, in particular to a plastic package motor.

Background

The plastic package motor consists of plastic package stator, shaft, rotor, bearing, end cover, heat protector, lead-out wire, socket, etc. the stator core of the plastic package motor is made up of two half-round cores.

The traditional plastic package motor comprises a rotating shaft, a rotor assembly, a plastic package stator and an end cover, wherein the rotor assembly is arranged on the rotating shaft, a cavity is formed in the middle of the plastic package stator, the rotor assembly is arranged in the cavity of the plastic package stator, the end cover is arranged at the end part of the plastic package stator, the rotating shaft is supported on a bearing of the end cover, a PG plate is arranged on the plastic package stator, then the PG plate is pressed and fastened on the plastic package stator through the end cover, as oil smoke dust exists in the working environment of the plastic package motor, the oil smoke easily enters the interior of the plastic package motor to corrode parts, the end cover is generally arranged on a shell of the plastic package stator in an interference fit mode, and the end cover is fixed with the end part of the plastic package stator shell through a bolt or a fastener and the like, so that the purpose of oil-proof sealing is achieved.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a plastic package motor.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a plastic envelope motor, includes the shell and sets up at its inside rotor assembly, the shell opening part is equipped with the end cover seat, be provided with the end cover on the end cover seat, the shell outside is provided with the clamp plate, clamp plate one end is located the end cover top, the shell outer wall is provided with the external screw thread, the clamp plate other end be provided with external screw thread spiro union complex internal thread.

Preferably, the pressing plates are at least provided with two groups and are equidistantly arranged, an arc ratchet wheel is arranged between two adjacent groups of pressing plates, and pawls matched with the arc ratchet wheel in a positioning mode are rotatably connected to the outer wall of the shell through supporting pieces.

Preferably, the support member comprises a protection box arranged on the shell and a bottom plate arranged in the protection box in a sliding manner, one end of the pawl is rotationally connected to the bottom plate, the other end of the pawl is connected with the bottom plate through a telescopic spring, a reset spring is arranged in the protection box, one end of the reset spring is fixedly connected with the bottom side of the inner wall of the protection box, and the other end of the reset spring is connected with one side of the bottom plate away from the pawl.

Preferably, the bottom plate is rotatably provided with an extension plate, the protection box is provided with a guide groove along the length direction of the return spring, and one end of the extension plate penetrates through the guide groove and is positioned outside the protection box.

Preferably, a limiting block is slidably arranged on one side of the guide groove outside the protection box, a placement block is arranged on the other side of the guide groove, and a placement groove for one end of the limiting block to extend in is formed in the placement block.

Preferably, a friction pad is arranged on the side of the pressing plate away from the shell.

The utility model has the beneficial effects that: compared with the prior art, the utility model has the advantages that the plurality of groups of pressing plates are arranged on the shell, the inner wall of each pressing plate is provided with the inner threads, the outer threads which are in threaded connection with the inner threads are arranged on the shell, the arc-shaped ratchet wheels are connected between the pressing plates, the pawls are arranged on the shell, the inner threads of the pressing plates are in threaded connection with the outer threads of the shell, the end covers are pressed on the shell by the pressing plates, interference fit between the end covers and the shell is not needed, the personnel can conveniently dismount the pressing plates, meanwhile, the arc-shaped ratchet wheels are clamped by the pawls when the pressing plates are in threaded connection with the shell, unidirectional rotation of the pressing plates is realized, the stability of the threaded connection between the pressing plates and the shell is ensured, the problem that the pressing plates are driven to rotate by external forces such as vibration or collision in the use process is solved, the friction pad on the outer wall of each pressing plate is used for increasing the friction force when the personnel holds the pressing plates, and the personnel can conveniently rotate the pressing plates.

Drawings

FIG. 1 is a schematic diagram showing a mechanism for an upper portion of a housing in accordance with one embodiment of the present utility model;

FIG. 2 is an exploded view of a mechanism for displaying the upper portion of the housing in one embodiment of the utility model;

fig. 3 is an exploded view of a portion of the structure of a support member for separate display in one embodiment of the utility model.

Reference numerals: 1. an external thread; 2. an arc ratchet; 3. a rotor assembly; 4. an end cap; 5. a housing; 6. a friction pad; 7. a pressing plate; 8. an internal thread; 9. a protective case; 10. an extension plate; 11. a pawl; 12. a telescopic spring; 13. a bottom plate; 14. placing a block; 15. a limiting block; 16. a guide groove; 17. a placement groove; 18. and a return spring.

Detailed Description

The following description is only of preferred embodiments of the present utility model, and the scope of protection is not limited to the examples, but the technical solutions falling under the concept of the present utility model should fall under the scope of protection of the present utility model, and it should be pointed out that, for those skilled in the art, these modifications and adaptations should and are considered as well, without departing from the principle of the present utility model.

It should be noted that in this document, relational terms such as first and second, and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Directional words such as "up, down, left, right" and the like in the present embodiment are merely used in conjunction with the various figures to enable one skilled in the art to understand the association between various features or elements and the like.

In this embodiment, unless explicitly specified and limited otherwise, the terms "coupled," "secured," and the like are to be construed broadly, and for example, "secured" may be either a fixed connection, a removable connection, or an integral unit; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

As shown in fig. 1 to 3, a plastic package motor comprises a housing 5 and a rotor assembly 3 disposed in the housing, wherein an upper opening of the housing 5 is provided with a circular end cover 4 seat (not shown in the drawings), an outer diameter of an upper end of the end cover 4 is larger than an inner diameter of an opening of the housing 5, and an outer diameter of a lower end of the end cover 4 is smaller than the inner diameter of the opening of the housing 5, the end cover 4 seat is used for supporting the lower end of the end cover 4 extending into the housing 5, the upper end of the end cover 4 is positioned outside the housing 5, an outer wall of the upper end of the housing 5 is provided with an external thread 1, the housing 5 is externally provided with an L-shaped pressing plate 7, in this embodiment, the pressing plates 7 are provided with three groups of equidistant, an inner thread 8 in threaded engagement with the external thread 1 is provided on an inner wall of the pressing plate 7, a friction pad 6 is fixed on an outer wall of the pressing plate 7, an arc ratchet 2 is horizontally fixed between two adjacent groups of pressing plates 7, in the embodiment, the inner wall of the arc ratchet 2 is provided with ratchets along the length direction, a cuboid protection box 9 is fixed on the outer wall of the shell 5, the protection box 9 is hollow, a T-shaped guide groove 16 is formed in the front side of the protection box 9, an L-shaped bottom plate 13 is horizontally arranged in the protection box 9, the lower end of the bottom plate 13 is fixedly connected with the bottom end of the inner wall of the protection box 9 through a return spring 18, a pawl 11 is horizontally rotated on the upper side of the bottom plate 13, the front end of the pawl 11 is connected with the inner wall of the upper end of the bottom plate 13 through a telescopic spring 12, an extension plate 10 is rotationally connected on one side of the bottom plate 13 far away from the protection box 9, the front end of the extension plate 10 penetrates through the lower end of the guide groove 16 and is positioned outside the protection box 9, a cuboid limiting block 15 is horizontally and slidably connected on the front side of the protection box 9, a placing block 14 is fixed on one end opposite to the limiting block 15, the side of the placement block 14 facing the limiting block 15 is provided with a placement groove 17.

When personnel need to carry out the suppression of end cover 4, the internal thread 8 of clamp plate 7 cooperates the external screw thread 1 of shell 5, the spiro union is followed, make clamp plate 7 rotatory move down, its upper end laminating is to the end cover 4 of placing on the shell 5, arc ratchet 2 is located the outside of pawl 11 on protection box 9 after screwing up, reset spring 18 is in the state of stretching, make bottom plate 13 support pawl 11 be located the inside upper end of protection box 9, simultaneously telescopic spring 12 promotes the front end of pawl 11 and stretches out from the guide way 16 upper end of protection box 9, and laminating arc ratchet 2 inner wall, then personnel promote the stopper 15 front end and slide into the standing groove 17 of placing block 14, extension board 10 of bottom plate 13 front side is located the stopper 15 directly over, thereby when bottom plate 13 is pressed, extension board 10 can be supported by stopper 15, avoid bottom plate 13 to push down and make pawl 11 vertically move down and break away from arc ratchet 2.

When the person changes the end cover 4, firstly, the limiting block 15 is reset to be separated from the placing groove 17 of the placing block 14, the person pulls the bottom plate 13 to move downwards through the extension plate 10, the pawl 11 on the bottom plate 13 synchronously moves downwards to be separated from the arc ratchet wheel 2, the arc ratchet wheel 2 is not propped against the arc ratchet wheel, then the person rotates the pressing plate 7 reversely, the pressing plate 7 moves upwards in a rotating mode, the end cover 4 is not pressed any more, and accordingly the person can take the end cover.

The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.

Claims

1. The plastic package motor comprises a shell (5) and a rotor assembly (3) arranged in the shell, wherein an end cover (4) seat is arranged at the opening of the shell (5), an end cover (4) is arranged on the end cover (4) seat,

the device is characterized in that a pressing plate (7) is arranged outside the shell (5), and one end of the pressing plate (7) is positioned above the end cover (4);

the outer wall of the shell (5) is provided with an external thread (1), and the other end of the pressing plate (7) is provided with an internal thread (8) in threaded fit with the external thread (1).

2. The plastic package motor according to claim 1, wherein at least two groups of pressing plates (7) are arranged and are equidistantly arranged, an arc ratchet wheel (2) is arranged between two adjacent groups of pressing plates (7), and a pawl (11) matched with the arc ratchet wheel (2) in a positioning mode is rotatably connected to the outer wall of the housing (5) through a supporting piece.

3. A plastic package motor according to claim 2, wherein the supporting member comprises a protection box (9) arranged on the outer shell (5) and a bottom plate (13) arranged in the protection box in a sliding manner, one end of the pawl (11) is rotatably connected to the bottom plate (13), the other end of the pawl (11) is connected with the bottom plate (13) through a telescopic spring (12), a return spring (18) is arranged in the protection box (9), one end of the return spring (18) is fixedly connected with the bottom side of the inner wall of the protection box (9), and the other end of the return spring is connected with one side, away from the pawl (11), of the bottom plate (13).

4. A plastic package motor according to claim 3, wherein the bottom plate (13) is rotatably provided with an extension plate (10), the protection box (9) is provided with a guide groove (16) along the length direction of the return spring (18), and one end of the extension plate (10) passes through the guide groove (16) and is located outside the protection box (9).

5. A plastic package motor according to claim 3, wherein a limiting block (15) is slidably arranged on one side of the guide groove (16) outside the protective box (9), a placing block (14) is arranged on the other side of the guide groove (16), and a placing groove (17) into which one end of the limiting block (15) extends is formed in the placing block (14).

6. A plastic package motor according to claim 1, characterized in that the pressure plate (7) is provided with a friction pad (6) at the side remote from the housing (5).