Stroke-adjustable motor and large-stroke double-drive motor

Abstract

The application provides a stroke-adjustable motor and a large-stroke double-drive motor. The stroke-adjustable motor comprises a first shell, the first shell being hollow, a first through hole being formed in one side of the first shell, a blocking sleeve, a second through hole being formed in the blocking sleeve, one end of the blocking sleeve penetrating through the first through hole and extending into the first shell, the blocking sleeve being detachably connected to the first shell, and the position of the blocking sleeve relative to the first shell being adjustable, a first output shaft, one end of the first output shaft penetrating through the second through hole and extending into the first shell, the first output shaft being slidably connected to the blocking sleeve, a first stator winding, the outer side of the first stator winding being fixed to the inner wall of the first shell, a first magnet, the first magnet being fixed to one end of the first output shaft extending into the first shell, and the first magnet being accommodated in the first stator winding. The stroke-adjustable motor can adjust the stroke and is suitable for different scenes.

Description

Technical Field

[0001] This application relates to the field of motor technology, specifically to a stroke-adjustable motor and a long-stroke dual-drive motor. Background Technology

[0002] A voice coil motor is a special type of linear drive motor. It features simple structure, small size, high speed, high acceleration, and fast response. Currently, the stroke of a voice coil motor depends on its cylinder; once the cylinder size is fixed, the stroke is also fixed and cannot be adjusted, making the voice coil motor unsuitable for various applications.

[0003] In other words, the stroke of the voice coil motor in the existing technology cannot be adjusted, making it unsuitable for different scenarios. Summary of the Invention

[0004] This application provides a stroke-adjustable motor, which aims to solve the problem that the stroke of the voice coil motor in the prior art cannot be adjusted and cannot adapt to different scenarios.

[0005] To address the above technical problems, this application provides a stroke-adjustable motor, the stroke-adjustable motor comprising:

[0006] A first outer shell, the first outer shell being hollow, and a first through hole being provided on one side of the first outer shell;

[0007] A blocking sleeve is provided with a second through hole. One end of the blocking sleeve passes through the first through hole and extends into the first outer shell. The blocking sleeve is detachably connected to the first outer shell, and the position of the blocking sleeve relative to the first outer shell is adjustable.

[0008] A first output shaft, one end of which passes through the second through hole and extends into the first housing, and the first output shaft is slidably connected to the blocking sleeve;

[0009] The first stator winding, the outer side of which is fixed to the inner wall of the first housing;

[0010] A first magnet is fixed to one end of the first output shaft that extends into the first housing, and the first magnet is housed within the first stator winding.

[0011] When the first stator winding is energized, it drives the first output shaft to extend or retract along the axial direction of the first output shaft. When the end of the blocking sleeve that extends into the first housing abuts against the first magnet, it restricts the extension of the first output shaft. When the side of the first magnet away from the first output shaft abuts against the inner side of the first housing, it restricts the retraction of the first output shaft.

[0012] Optionally, the sidewall of the first through hole is threaded, the outer wall of the blocking sleeve is threaded, the blocking sleeve passes through the first through hole and is threadedly connected to the first outer shell, and the blocking sleeve rotates and extends within the first through hole to adjust the length of the blocking sleeve extending into the first outer shell.

[0013] Optionally, a first locking nut is also fitted on the first output shaft. The first locking nut is threadedly connected to the first output shaft. The first locking nut is located outside the first housing, and one side of the first locking nut abuts against the outer wall of the first housing.

[0014] Optionally, the outer wall of the blocking sleeve is provided with a protrusion, which is located on the side of the first locking nut away from the first magnet.

[0015] Optionally, the first housing includes a hollow first housing and a first cover plate. A first opening is recessed on one side of the first housing. The first cover plate blocks the first opening. The first cover plate is detachably connected to the first housing. The first cover plate has a first through hole.

[0016] Optionally, the thickness of the sidewall of the first housing located on the side of the first magnet away from the first output shaft is greater than the thickness of the sidewall of the first housing to which the first stator winding is fixed.

[0017] To solve the above technical problems, this application provides a long-stroke dual-drive motor, which includes a linear drive device and a stroke-adjustable motor as described in any one of the first aspects. The housing of the linear drive device is connected to the first housing of the stroke-adjustable motor, and the power output direction of the linear drive device is on the same straight line as the output shaft of the stroke-adjustable motor.

[0018] Optionally, the linear drive device is a stroke-adjustable motor as described in any one of the first aspects.

[0019] Optionally, the linear drive device includes a second housing, a second output shaft, a second stator winding, and a second magnet. The second housing is hollow, and a third through hole is formed on one side of the second housing. One end of the second output shaft extends into the second housing through the third through hole. The second output shaft is slidably connected to the second housing. A blocking portion protrudes from the outer side of the second output shaft and is located outside the second housing. The outer side of the second stator winding is fixed to the inner wall of the second housing. The second magnet is fixed to the end of the second output shaft that extends into the second housing and is housed within the second stator winding.

[0020] The first housing of the adjustable-stroke motor is fixed to the second housing, and the first output shaft and the second output shaft of the adjustable-stroke motor are located on the same straight line;

[0021] When the second stator winding is energized, it drives the second magnet to extend or retract along the axial direction of the second output shaft. When the blocking part abuts against the outer wall of the second housing, it restricts the retraction of the second output shaft. When the second magnet abuts against the inner side of the second housing on the side facing the second output shaft, it restricts the extension of the second output shaft.

[0022] Optionally, the blocking part is provided with a fourth through hole, the inner wall of the fourth through hole is provided with an internal thread, the side wall of the second output shaft is provided with an external thread, the second output shaft passes through the fourth through hole and is threadedly connected to the blocking part, and the blocking part rotates relative to the second output shaft to adjust the distance between the blocking part and the second magnet;

[0023] The long-stroke dual-drive motor includes a reference state, an extended state, and a retracted state. When the long-stroke dual-drive motor is in the reference state, the side of the first magnet away from the first output shaft abuts against the inner side of the first housing, and the side of the second magnet facing the second output shaft abuts against the inner side of the second housing. When the long-stroke dual-drive motor is in the retracted state, the side of the first magnet away from the first output shaft abuts against the inner side of the first housing, and the blocking part abuts against the outer side of the second housing. When the long-stroke dual-drive motor is in the extended state, the end of the blocking sleeve extending into the first housing abuts against the first magnet, and the side of the second magnet facing the second output shaft abuts against the inner side of the second housing.

[0024] This application provides a stroke-adjustable motor, comprising: a first housing, the first housing being hollow, and a first through hole formed on one side of the first housing; a blocking sleeve, the blocking sleeve having a second through hole, one end of the blocking sleeve extending into the first housing through the first through hole, the blocking sleeve being detachably connected to the first housing, and the position of the blocking sleeve relative to the first housing being adjustable; a first output shaft, one end of the first output shaft extending into the first housing through the second through hole, the first output shaft being slidably connected to the blocking sleeve; a first stator winding, the outer side of the first stator winding being fixed to the inner wall of the first housing; a first magnet, the first magnet being fixed to the end of the first output shaft extending into the first housing, the first magnet being housed within the first stator winding; when the first stator winding is energized, it drives the first output shaft to extend or retract along the axial direction of the first output shaft, the end of the blocking sleeve extending into the first housing restricts the extension of the first output shaft when it abuts against the first magnet, and the side of the first magnet away from the first output shaft abuts against the inner side of the first housing, restricting the retraction of the first output shaft. The adjustable-stroke motor of this application has a blocking sleeve on the first output shaft. The physical limit of the blocking sleeve restricts the extension of the first output shaft, and the physical limit of the inner wall of the first housing restricts the retraction of the first output shaft. The blocking sleeve and the first housing limit the first output shaft. The stroke can be adjusted by adjusting the position of the blocking sleeve relative to the first housing and adjusting the distance between the blocking sleeve and the first magnet, so as to adapt to different scenarios. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the stroke-adjustable motor provided in this application;

[0027] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of the adjustable-stroke motor provided in this application;

[0028] Figure 3 This is a schematic diagram of the structure of the blocking sleeve in one embodiment of the adjustable-stroke motor provided in this application;

[0029] Figure 4 This is a cross-sectional structural schematic diagram of an embodiment of a large-stroke dual-drive motor provided in this application;

[0030] Figure 5 This is a schematic diagram of the overall structure of another embodiment of the large-stroke dual-drive motor provided in this application;

[0031] Figure 6 This is a cross-sectional structural diagram of another embodiment of the large-stroke dual-drive motor provided in this application;

[0032] Figure 7 This is a cross-sectional structural schematic diagram of another embodiment of the large-stroke dual-drive motor provided in this application when it is in a reference state;

[0033] Figure 8 This is a cross-sectional structural diagram of another embodiment of the large-stroke dual-drive motor provided in this application when it is in a retracted state;

[0034] Figure 9 This is a cross-sectional structural diagram of another embodiment of the large-stroke dual-drive motor provided in this application when it is in an extended state. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0036] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0038] This application provides a stroke-adjustable motor and a long-stroke dual-drive motor. Detailed description follows.

[0039] First, this application provides a stroke-adjustable motor, which includes: a first housing, the first housing being hollow, and a first through hole on one side of the first housing; a blocking sleeve, the blocking sleeve having a second through hole, one end of the blocking sleeve extending into the first housing through the first through hole, the blocking sleeve being detachably connected to the first housing, and the position of the blocking sleeve relative to the first housing being adjustable; a first output shaft, one end of the first output shaft extending into the first housing through the second through hole, the first output shaft being slidably connected to the blocking sleeve; a first stator winding, the outer side of the first stator winding being fixed to the inner wall of the first housing; a first magnet, the first magnet being fixed to the end of the first output shaft extending into the first housing, the first magnet being housed within the first stator winding; when the first stator winding is energized, it drives the first output shaft to extend or retract along the axial direction of the first output shaft, the end of the blocking sleeve extending into the first housing restricts the extension of the first output shaft when it abuts against the first magnet, and the side of the first magnet away from the first output shaft abuts against the inner side of the first housing, restricting the retraction of the first output shaft.

[0040] See Figures 1 to 3In this embodiment, the adjustable-stroke motor 10 includes: a first housing 11, a blocking sleeve 13, a first output shaft 12, a first stator winding 114, and a first magnet 123. The first housing 11 is hollow, and a first through hole 113 is formed on one side of the first housing 11. A second through hole 132 is formed on the blocking sleeve 13, and one end of the blocking sleeve 13 extends into the first housing 11 through the first through hole 113. The blocking sleeve 13 is detachably connected to the first housing 11, and the position of the blocking sleeve 13 relative to the first housing 11 is adjustable. One end of the first output shaft 12 extends into the first housing 11 through the second through hole 132, and the first output shaft 12 is slidably connected to the blocking sleeve 13. The outer side of the first stator winding 114 is fixed to the inner wall of the first housing 11. The first magnet 123 is fixed to the end of the first output shaft 12 that extends into the first housing 11, and the first magnet 123 is housed within the first stator winding 114. When the first stator winding 114 is energized, it drives the first magnet 123 to extend or retract along the axial direction of the first output shaft 12. When the end of the blocking sleeve 13 extending into the first housing 11 abuts against the first magnet 123, it restricts the extension of the first output shaft 12. When the side of the first magnet 123 away from the first output shaft 12 abuts against the inner side of the first housing 11, it restricts the retraction of the first output shaft 12. The adjustable-stroke motor 10 of this application has a blocking sleeve 13 on the first output shaft 12. The physical limitation of the blocking sleeve 13 restricts the extension of the first output shaft 12, and the physical limitation of the inner wall of the first housing 11 restricts the retraction of the first output shaft 12. This allows the blocking sleeve 13 and the first housing 11 to limit the movement of the first output shaft 12. By adjusting the position of the blocking sleeve 13 relative to the first housing 11, and adjusting the distance between the blocking sleeve 13 and the first magnet 123, the stroke can be adjusted to adapt to different scenarios.

[0041] The first stator winding 114 is a winding mounted on the stator, that is, copper wire wound on the stator. In this embodiment, the first outer shell 11 is the stator, and the first stator winding 114 is mounted on the first outer shell 11. Specifically, the first stator winding 114 is wound on the inner wall of the first outer shell 11. The first stator winding 114 can be a concentrated winding or a distributed winding, depending on the specific situation. A winding is a general term for a phase or the entire electromagnetic circuit composed of multiple coils or coil groups. Motors can be divided into concentrated and distributed types according to the different shapes of coil winding and the embedding wiring method. Concentrated windings are relatively simple to wind and embed, but have lower efficiency and poorer operating performance. Most current AC motor stators use distributed windings. Depending on the different models, types, and coil embedding process conditions, motors are designed with different winding types and specifications. The first magnet 123 is a permanent magnet, and the magnet material can be any one of hard magnets, iron boron, and cobalt iron.

[0042] In this embodiment, the first outer casing 11 includes a hollow first casing 112 and a first cover plate 111. A first opening 15 is provided on one side of the first casing 112, and the first cover plate 111 seals the first opening 15. The first cover plate 111 is detachably connected to the first casing 112, and a first through hole 113 is provided on the first cover plate 111. Specifically, the first cover plate 111 can be fixed to the first outer casing 11 by means of threaded connection, snap-fit ​​connection, or other methods. The detachable connection between the first cover plate 111 and the first casing 112 facilitates replacement of the first cover plate 111 and reduces the maintenance cost of the stroke-adjustable motor 10.

[0043] In this embodiment, the sidewall of the first through hole 113 is threaded, and the outer wall of the blocking sleeve 13 is threaded. The blocking sleeve 13 passes through the first through hole 113 and is threadedly connected to the first outer shell 11. The blocking sleeve 13 rotates and extends within the first through hole 113 to adjust the length of the blocking sleeve 13 extending into the first outer shell 11. The extension length of the first output shaft 12 can be adjusted by adjusting the length of the blocking sleeve 13 extending into the first outer shell 11.

[0044] In another specific embodiment, the blocking sleeve 13 is provided with a plurality of limiting holes spaced apart along its axial direction, and a limiting rod passes through the side wall of the first through hole 113 provided in the first outer shell 11. The limiting rod is threadedly connected to the side wall of the first through hole 113. Specifically, a limiting rod passes through the first cover plate 111, and the limiting rod is threadedly connected to the first cover plate 111. The extension direction of the limiting rod is perpendicular to the first output shaft 12. When the blocking sleeve 13 is moved to the required position, the limiting rod is rotated to insert the limiting rod into the limiting hole on the blocking sleeve 13, thereby restricting the axial movement of the blocking sleeve 13. By inserting the limiting rod into different limiting holes on the blocking sleeve 13, the extension length of the blocking sleeve 13 can be limited to a specified length. For example, if there are 5 limiting holes arranged at intervals, the blocking sleeve 13 has 5 adjustable positions, and the stroke adjustable motor 10 has 5 adjustable strokes.

[0045] In other embodiments, the position of the blocking sleeve 13 relative to the first outer shell 11 can also be adjusted in other ways, depending on the specific situation, and is not limited here.

[0046] In this embodiment, a first locking nut 14 is also fitted onto the first output shaft 12. The first locking nut 14 is threadedly connected to the first output shaft 12 and is located on the outside of the first housing 11. One side of the first locking nut 14 abuts against the outer wall of the first housing 11. Specifically, one side of the first locking nut 14 abuts against the side of the first cover plate 111 away from the first magnet 123. The locking nut is a type of nut widely used in industries such as machinery. Its working principle is based on self-locking through friction between the nut and the bolt. After adjusting the blocking sleeve 13 to the required position, the first locking nut 14 is tightened, causing friction between the first locking nut 14 and the outer wall of the first housing 11, preventing the blocking sleeve 13 from loosening during the operation of the adjustable-stroke motor 10.

[0047] Furthermore, a connector 16 is provided on the side of the first output shaft 12 away from the first magnet 123, and the connector 16 is used to connect to the receiving drive component.

[0048] In this embodiment, the outer wall of the blocking sleeve 13 is provided with a protrusion 131, which is located on the side of the first locking nut 14 away from the first magnet 123. Optionally, the protrusion 131 is a hexagonal nut, which is integrally formed with the blocking sleeve 13. This can prevent the first locking nut 14 from falling off the blocking sleeve 13 during adjustment, and also makes it easier for people to use tools such as wrenches to rotate the blocking sleeve 13 through the protrusion 131.

[0049] Optionally, the thickness of the sidewall of the first housing 11 located on the side of the first magnet 123 away from the first output shaft 12 is greater than the thickness of the sidewall of the first housing 11 on which the first stator winding 114 is fixed. Since the sidewall of the first housing 11 located on the side of the first magnet 123 away from the first output shaft 12 is susceptible to damage from impacts by the first magnet 123, while the sidewall of the first housing 11 on which the first stator winding 114 is fixed is not subject to impacts, different thicknesses are designed for different parts of the first housing 11. This allows for reinforcement of the stress-bearing parts of the first housing 11, resulting in a more rational design of the first housing 11.

[0050] In one specific embodiment, the first housing 112 is a cylinder, the hollow cavity inside the first housing 112 is a cylinder, and the first magnet 123 is a cylinder. In other embodiments, the shapes of the first housing 112 and the first magnet 123 can be set according to specific circumstances, for example, a quadrangular prism, a triangular prism, etc.

[0051] For further details, please refer to [link / reference]. Figure 4This application provides a long-stroke dual-drive motor 19, which includes two stroke-adjustable motors 10, i.e., the linear drive device is also a stroke-adjustable motor 10, and the two stroke-adjustable motors 10 are symmetrically arranged. The first housings 11 of the two stroke-adjustable motors 10 are connected to each other, and the first output shafts 12 of the two stroke-adjustable motors 10 are located on the same straight line.

[0052] Optionally, the first housing 112 of the two stroke adjustable motors 10 can be manufactured by integral molding, thereby improving the overall integrity of the large-stroke dual drive motor 19.

[0053] The first housings 112 of the two stroke-adjustable motors 10 are connected to each other. Each stroke-adjustable motor 10 can be positioned in two positions, and the large-stroke dual drive motor 19 can move in four positions, thereby enabling the large-stroke dual drive motor 19 to provide a large lifting and retraction stroke.

[0054] In other embodiments, the linear drive device can be other types of linear reciprocating drives. For example, the linear drive device can be a cylinder, a hydraulic cylinder, or a conventional voice coil motor. A cylinder is a cylindrical metal component that guides a piston in linear reciprocating motion within the cylinder. In an engine cylinder, air expands, converting thermal energy into mechanical energy; in a compressor cylinder, gas is compressed by a piston, increasing its pressure. A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy, performing linear reciprocating motion. It has a simple structure and reliable operation. When used to achieve reciprocating motion, a reduction gear is unnecessary, and there is no transmission backlash, resulting in smooth movement. Therefore, it is widely used in the hydraulic systems of various machines.

[0055] For further details, please refer to [link / reference]. Figure 5 and Figure 6 This application provides a long-stroke dual-drive motor 30, which includes a linear drive device 20 and a stroke-adjustable motor 10.

[0056] The linear drive device 20 includes a second housing 21, a second output shaft 22, a second stator winding 214, and a second magnet 223. The second housing 21 is hollow, and a third through hole 213 is provided on one side of the second housing 21. One end of the second output shaft 22 extends into the second housing 21 through the third through hole 213. The second output shaft 22 is slidably connected to the second housing 21. A blocking part 23 protrudes from the outer side of the second output shaft 22 and is located outside the second housing 21. The outer side of the second stator winding 214 is fixed to the inner wall of the second housing 21. The second magnet 223 is fixed to the end of the second output shaft 22 that extends into the second housing 21 and is housed within the second stator winding 214.

[0057] The first housing 11 of the adjustable-stroke motor 10 is fixed to the second housing 21, and the first output shaft 12 and the second output shaft 22 of the adjustable-stroke motor 10 are located on the same straight line.

[0058] When energized, the first stator winding 114 extends or retracts along the axial direction of the first output shaft 12. The end of the blocking sleeve 13 extending into the first housing 11 restricts the extension of the first output shaft 12 when it abuts against the first magnet 123. When the side of the first stator winding 114 away from the first output shaft 12 abuts against the inner side of the first housing 11, it restricts the retraction of the first output shaft 12. When energized, the second stator winding 214 drives the second magnet 223 to extend or retract along the axial direction of the second output shaft 22. The blocking part 23 restricts the retraction of the second output shaft 22 when it abuts against the outer wall of the second housing 21. When the side of the second magnet 223 facing the second output shaft 22 abuts against the inner side of the second housing 21, it restricts the extension of the second output shaft 22.

[0059] Furthermore, the second output shaft 22 includes a first shaft 221 and a second shaft 222 coaxially arranged. One end of the first shaft 221 extends into the second housing 21 through a third through hole 213, and the first shaft 221 is slidably connected to the second housing 21. A second magnet 223 is fixed to one end of the first shaft 221 extending into the second housing 21, and the other end of the first shaft 221 is connected to one end of the second shaft 222. The other end of the second shaft 222 is used to connect to the driven component. A blocking part 23 is detachably connected to the second shaft 222. The blocking part 23 is provided with a fourth through hole 231, the inner wall of the fourth through hole 231 is provided with an internal thread, and the side wall of the second shaft 222 is provided with an external thread. The second shaft 222 passes through the fourth through hole 231 and is threadedly connected to the blocking part 23. The blocking part 23 rotates relative to the second shaft 222 to adjust the distance between the blocking part 23 and the second magnet 223. One end of the first shaft 221 is hollow, and one end of the second shaft 222 extends into one end of the first shaft 221 and is threadedly connected to the first shaft 221. The first shaft 221 rotates relative to the second shaft 222 to adjust the distance between the blocking part 23 and the second magnet 223. The blocking part 23 is provided with a fifth through hole 232, which communicates with the fourth through hole 231. The fifth through hole 232 is located on the side of the fourth through hole 231 facing the second magnet 223, and the diameter of the fifth through hole 232 is not less than the outer diameter of the first shaft 221. The outer contour of the blocking part 23 is a hexagonal prism, and the fourth through hole 231 and the fifth through hole 232 are circular holes. The radius of the circumscribed circle of the blocking part 23 is greater than the radius of the third through hole 213. A second locking nut 24 is also fitted on the first shaft 221. The second locking nut 24 is threadedly connected to the first shaft 221. The second locking nut 24 is located on the side of the blocking part 23 away from the second magnet 223, and the second locking nut 24 abuts against the blocking part 23.

[0060] In this embodiment, the second outer shell 21 includes a hollow second shell 212 and a second cover plate 211. A second opening 25 is provided on one side of the second shell 212, and the second cover plate 211 blocks the second opening 25. The second cover plate 211 is detachably connected to the second shell 212, and a third through hole 213 is provided on the second cover plate 211. The blocking part 23 restricts the retraction of the second output shaft 22 when it abuts against the side of the second cover plate 211 away from the second magnet 223, and restricts the extension of the second output shaft 22 when the side of the second magnet 223 facing the second output shaft 22 abuts against the side of the second cover plate 211 facing the second magnet 223. Optionally, the thickness of the second cover plate 211 is greater than the sidewall thickness of the second shell 212. Since the second cover plate 211 is easily damaged, while the second shell 212 is not subject to impact, the thickness of the second cover plate 211 being greater than the sidewall thickness of the second shell 212 allows for reinforcement of the stress-bearing parts of the second shell 21, thus enabling a reasonable design of the second shell 21.

[0061] The long-stroke dual drive motor 30 includes a reference state, an extended state, and a retracted state.

[0062] like Figure 7 As shown, when the long-stroke dual drive motor 30 is in the reference state, the side of the first magnet 123 away from the first output shaft 12 abuts against the inner side of the first housing 11, and the side of the second magnet 223 facing the second output shaft 22 abuts against the inner side of the second housing 21.

[0063] like Figure 8 As shown, when the long-stroke dual drive motor 30 is in the retracted state, the side of the first magnet 123 away from the first output shaft 12 abuts against the inner side of the first housing 11; the blocking part 23 abuts against the second housing 21.

[0064] like Figure 9 As shown, when the long-stroke dual drive motor 30 is in the extended state, the end of the blocking sleeve 13 that extends into the first housing 11 abuts against the first magnet 123, and the side of the second magnet 223 facing the second output shaft 22 abuts against the inside of the second housing 21.

[0065] The long-stroke dual-drive motor 30 operates in either the extended or retracted state, returning to its reference state after operation. In the reference state, the adjustable-stroke motor 10 retracts, and the linear drive device 20 extends. At this time, the first magnet 123 is positioned by the first housing 11, and the second magnet 223 is positioned by the second housing 21. The reference state of the long-stroke dual-drive motor 30 is not controlled by the stroke adjustment at either end. Therefore, adjusting the strokes of the adjustable-stroke motor 10 and the linear drive device 20 will not change the reference state of the long-stroke dual-drive motor 30, thus avoiding any deviation in the reference state of the long-stroke dual-drive motor 30 during stroke adjustment. This asymmetrical adjustment method in this embodiment avoids the problem of motor reference state deviation caused by symmetrical adjustment, facilitating practical use, and is particularly suitable for swing wheel sorting control.

[0066] This application provides a stroke-adjustable motor, comprising: a first housing, the first housing being hollow, and a first through hole formed on one side of the first housing; a blocking sleeve, the blocking sleeve having a second through hole, one end of the blocking sleeve extending into the first housing through the first through hole, the blocking sleeve being detachably connected to the first housing, and the position of the blocking sleeve relative to the first housing being adjustable; a first output shaft, one end of the first output shaft extending into the first housing through the second through hole, the first output shaft being slidably connected to the blocking sleeve; a first stator winding, the outer side of the first stator winding being fixed to the inner wall of the first housing; a first magnet, the first magnet being fixed to the end of the first output shaft extending into the first housing, the first magnet being housed within the first stator winding; when the first stator winding is energized, it drives the first output shaft to extend or retract along the axial direction of the first output shaft, the end of the blocking sleeve extending into the first housing restricts the extension of the first output shaft when it abuts against the first magnet, and the side of the first magnet away from the first output shaft abuts against the inner side of the first housing, restricting the retraction of the first output shaft. The adjustable-stroke motor of this application has a blocking sleeve on the first output shaft. The physical limit of the blocking sleeve restricts the extension of the first output shaft, and the physical limit of the inner wall of the first housing restricts the retraction of the first output shaft. The blocking sleeve and the first housing limit the first output shaft. The stroke can be adjusted by adjusting the position of the blocking sleeve relative to the first housing and adjusting the distance between the blocking sleeve and the first magnet, so as to adapt to different scenarios.

[0067] The above provides a detailed description of an adjustable-stroke motor and a large-stroke dual-drive motor provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A stroke-adjustable motor, characterized in that, The adjustable-stroke motor is a voice coil motor, and the adjustable-stroke motor includes: The first outer shell is hollow and has a first through hole on one side. The first outer shell is a stator. A blocking sleeve is provided with a second through hole. One end of the blocking sleeve passes through the first through hole and extends into the first outer shell. The blocking sleeve is detachably connected to the first outer shell. The position of the blocking sleeve relative to the first outer shell is adjustable. The blocking sleeve is provided with a plurality of limiting holes spaced apart along its axial direction. A limiting rod passes through the side wall of the first outer shell where the first through hole is located. A first output shaft, one end of which passes through the second through hole and extends into the first housing, and the first output shaft is slidably connected to the blocking sleeve; The first stator winding is fixed to the inner wall of the first housing and wound around the inner wall of the first housing. A first magnet is fixed to one end of the first output shaft that extends into the first housing, and the first magnet is housed within the first stator winding. When the first stator winding is energized, it drives the first magnet to extend or retract along the axial direction of the first output shaft. When the end of the blocking sleeve that extends into the first housing abuts against the first magnet, it restricts the extension of the first output shaft. When the side of the first magnet away from the first output shaft abuts against the inner side of the first housing, it restricts the retraction of the first output shaft.

2. The adjustable-stroke motor as described in claim 1, characterized in that, The sidewall of the first through hole is threaded, and the outer wall of the blocking sleeve is threaded. The blocking sleeve passes through the first through hole and is threadedly connected to the first outer shell. The blocking sleeve rotates and extends within the first through hole to adjust the length of the blocking sleeve extending into the first outer shell.

3. The adjustable-stroke motor as described in claim 2, characterized in that, A first locking nut is also fitted on the first output shaft. The first locking nut is threadedly connected to the first output shaft. The first locking nut is located outside the first housing, and one side of the first locking nut abuts against the outer wall of the first housing.

4. The adjustable-stroke motor as described in claim 3, characterized in that, The outer wall of the blocking sleeve has a protrusion, which is located on the side of the first locking nut away from the first magnet.

5. The stroke-adjustable motor as described in any one of claims 1-4, characterized in that, The first outer shell includes a hollow first shell and a first cover plate. A first opening is recessed on one side of the first shell. The first cover plate blocks the first opening. The first cover plate is detachably connected to the first shell. The first through hole is provided on the first cover plate.

6. The adjustable-stroke motor as described in claim 5, characterized in that, The thickness of the sidewall of the first housing located on the side of the first magnet away from the first output shaft is greater than the thickness of the sidewall of the first housing where the first stator winding is fixed.

7. A long-stroke dual-drive motor, characterized in that, The long-stroke dual-drive motor includes a linear drive device and a stroke-adjustable motor as described in any one of claims 1-6. The stroke-adjustable motor is a voice coil motor. The housing of the linear drive device is connected to the first housing of the stroke-adjustable motor. The power output direction of the linear drive device is on the same straight line as the output shaft of the stroke-adjustable motor.

8. The long-stroke dual-drive motor according to claim 7, characterized in that, The linear drive device is the stroke-adjustable motor as described in any one of claims 1-6.

9. The long-stroke dual-drive motor according to claim 7, characterized in that, The linear drive device includes a second housing, a second output shaft, a second stator winding, and a second magnet. The second housing is hollow, and a third through hole is formed on one side of the second housing. One end of the second output shaft extends into the second housing through the third through hole, and the second output shaft is slidably connected to the second housing. A blocking part protrudes from the outer side of the second output shaft and is located outside the second housing. The outer side of the second stator winding is fixed to the inner wall of the second housing. The second magnet is fixed to the end of the second output shaft that extends into the second housing and is housed within the second stator winding. The first housing of the adjustable-stroke motor is fixed to the second housing, and the first output shaft and the second output shaft of the adjustable-stroke motor are located on the same straight line; When the second stator winding is energized, it drives the second magnet to extend or retract along the axial direction of the second output shaft. When the blocking part abuts against the outer wall of the second housing, it restricts the retraction of the second output shaft. When the second magnet abuts against the inner side of the second housing on the side facing the second output shaft, it restricts the extension of the second output shaft.

10. The long-stroke dual-drive motor as described in claim 9, characterized in that, The blocking part is provided with a fourth through hole, the inner wall of the fourth through hole is provided with an internal thread, the side wall of the second output shaft is provided with an external thread, the second output shaft passes through the fourth through hole and is threadedly connected to the blocking part, and the blocking part rotates relative to the second output shaft to adjust the distance between the blocking part and the second magnet; The long-stroke dual-drive motor includes a reference state, an extended state, and a retracted state. When the long-stroke dual-drive motor is in the reference state, the side of the first magnet away from the first output shaft abuts against the inner side of the first housing, and the side of the second magnet facing the second output shaft abuts against the inner side of the second housing. When the long-stroke dual-drive motor is in the retracted state, the side of the first magnet away from the first output shaft abuts against the inner side of the first housing, and the blocking part abuts against the outer side of the second housing. When the long-stroke dual-drive motor is in the extended state, the end of the blocking sleeve extending into the first housing abuts against the first magnet, and the side of the second magnet facing the second output shaft abuts against the inner side of the second housing.

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