Motor core

Abstract

The utility model relates to the technical field of motors, in particular to a motor core, which comprises a motor, a first fixing sleeve and a second fixing sleeve assembled and connected with the first fixing sleeve, the first containing cavity is located in the second fixing sleeve and is far away from the motor; the second containing cavity is located in the second fixing sleeve and is close to the motor; at least one stage of speed reducing mechanism is contained in the second containing cavity, the clutch is contained in the first containing cavity, and the second fixing sleeve is in transmission connection with the speed reducing mechanism. The second fixing sleeve is arranged, the second fixing sleeve is divided into the first containing cavity and the second containing cavity, the clutch and the at least one stage of speed reducing mechanism can be contained in the second fixing sleeve, the clutch and the at least one stage of speed reducing mechanism can be assembled through the single fixing sleeve, the number of needed die sinking is reduced, cost is reduced, assembling steps are reduced, and assembling is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a motor core. Background Art

[0002] The motor movement involves the speed reduction mechanism and the clutch, which are the core components of the motor. The motor movement is used in various fields, especially in the field of electric curtains. The existing motor movement is formed by assembling the clutch housing and the speed reduction mechanism housing. Due to the independent setting of the clutch housing and the speed reduction mechanism housing, the motor movement is relatively large.

[0003] Based on the above technical problems, a Chinese patent with the patent publication number CN116505711A discloses a motor reduction box and a clutch. The motor discloses a motor, a multi-stage (two-stage) reduction mechanism, and a clutch, and uses a fixed internal gear sleeve for each stage of the reduction mechanism, and a clutch sleeve for the clutch. Such a motor movement is relatively small. However, due to the large number of corresponding internal gear sleeves and sleeves, the number of molds is large, and the assembly is relatively troublesome. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the problems of a large number of molds and complicated assembly in the prior art, and to provide a motor movement.

[0005] The utility model solves the above technical problems through the following technical solutions: a motor movement, including a motor, a first fixed sleeve, and also including: a second fixed sleeve assembled and connected with the first fixed sleeve; a first accommodating cavity, located in the second fixed sleeve and far away from the motor; a second accommodating cavity, located in the second fixed sleeve and close to the motor; at least one stage reduction mechanism is accommodated in the second accommodating cavity, the clutch is accommodated in the first accommodating cavity, and the second fixed sleeve is transmission-connected to the reduction mechanism.

[0006] Furthermore, the second fixing sleeve includes: openings, which are arranged at both ends of the second fixing sleeve; a partition, which is arranged in the second fixing sleeve, and the partition divides the second fixing sleeve into the first accommodating cavity and the second accommodating cavity; and a through hole is provided on the partition.

[0007] Furthermore, the reduction mechanism includes a sun gear and a plurality of planetary gears, the plurality of planetary gears are meshed with the sun gear, and the plurality of planetary gears are arranged along the circumference of the sun gear.

[0008] Furthermore, a second fixed gear ring is provided in the second accommodating cavity, and the second fixed gear ring is meshed with the plurality of the planetary gears; a first fixed gear ring is provided in the first fixed sleeve, and the first fixed gear ring is meshed with the plurality of the planetary gears, and the second fixed sleeve is drivingly connected with the planetary gears.

[0009] Furthermore, it also includes: a support sleeve, which is arranged on the output shaft of the motor and is used to support the first fixed sleeve; a bracket, which is connected to the speed reduction mechanism and is used to support the next stage speed reduction mechanism or the clutch.

[0010] Furthermore, the clutch is provided with a reduction head, and the reduction head is provided with an output shaft.

[0011] Furthermore, a Hall sensor is also provided on the second fixing sleeve, and a plurality of magnets cooperating with the Hall sensor are provided along the circumference of the reduction head.

[0012] Furthermore, the clutch includes: a rotating part connected to the output of the reduction mechanism; an iron ring coaxially connected to the rotating part; two magnetic beads arranged on the iron ring and located on opposite sides of the rotating part; and a groove arranged on the inner side wall of the reduction head.

[0013] Furthermore, the first protrusion is arranged along the side wall of the first fixing sleeve or the side wall of the second fixing sleeve; and the first recess matched with the first protrusion is adaptively arranged along the side wall of the second fixing sleeve or the side wall of the first fixing sleeve.

[0014] Further optimization also includes an outer shell and an iron shell, the outer shell covers the first fixing sleeve and the second fixing sleeve, and the iron shell covers the outer shell.

[0015] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0016] The positive and progressive effects of the utility model are: 1. By setting a second fixed sleeve, the second fixed sleeve is divided into a first accommodating chamber and a second accommodating chamber, which can respectively accommodate the clutch and at least one first-stage reduction mechanism. A single fixed sleeve can be used to realize the assembly of the clutch and at least one first-stage reduction mechanism, reducing the number of molds required, reducing costs, and reducing assembly steps, and the assembly is relatively simple. 2. The first fixed sleeve is used to realize the assembly of the remaining reduction mechanisms. After the first fixed sleeve and the second fixed sleeve are assembled separately, they can be installed in coordination with each other to realize the movement installation, which is simple to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural diagram of a motor movement.

[0018] Figure 2 This is a structural diagram of a motor movement of the utility model after omitting the first fixing sleeve and the second fixing sleeve.

[0019] Figure 3This is a structural diagram of a motor movement of the utility model after omitting the first fixing sleeve, the second fixing sleeve and the reduction head.

[0020] Figure 4 The utility model is a structural diagram of a motor movement with a housing added.

[0021] Figure 5 The utility model is a structural diagram of a motor movement after an iron ring is added.

[0022] Figure 6 The utility model is a structural diagram of a motor movement after adding bearings.

[0023] Figure 7 The utility model is a structural explosion diagram of a clutch in a motor movement.

[0024] Figure 8 The utility model is a structural diagram of a first fixed sleeve in a motor movement.

[0025] Fig. 9 The utility model is a structural diagram of a second fixed sleeve in a motor movement.

[0026] Fig.10 This is a structural diagram of a second bracket in a motor movement of the utility model.

[0027] Fig.11 The utility model is an exploded structural diagram of a speed reduction mechanism in a motor movement.

[0028] Fig.12 The utility model is a structural diagram of a second fixed sleeve in a motor movement.

[0029] Explanation of the reference numerals: 100, motor; 110, first fixed sleeve; 120, second fixed sleeve; 121, first accommodating chamber; 122, second accommodating chamber; 124, partition; 125, through hole; 130, reduction mechanism; 131, sun gear; 132, planetary gear; 140, clutch; 150, support sleeve; 160, second fixed gear ring; 170, first fixed gear ring; 180, fixing hole; 190, first bracket; 200, second bracket; 210, fixing column; 220, reduction head; 230, output shaft; 240, Hall sensor; 250, magnet; 260, rotating part; 270, iron ring; 280, magnetic bead; 290, groove; 300, first protrusion; 310, first depression; 320, housing; 330, iron shell; 340, bearing. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0031] It should be noted that in the claims and description of this patent, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] The utility model discloses a motor core, such as Figure 1-12 As shown, it includes a motor 100, a first fixed sleeve 110, and also includes: a second fixed sleeve 120 assembled and connected to the first fixed sleeve 110; a first accommodating chamber 121, located in the second fixed sleeve 120 and arranged away from the motor 100; a second accommodating chamber 122, located in the second fixed sleeve 120, and arranged close to the motor 100; at least one stage reduction mechanism 130 is accommodated in the second accommodating chamber 122, the clutch 140 is accommodated in the first accommodating chamber 121, and the second fixed sleeve 120 is transmission-connected to the reduction mechanism.

[0033] The assembly connection method of the first fixing sleeve 110 and the second fixing sleeve 120 can be a snap connection, plug-in connection, nail connection, etc., among which the plug-in fitting method is preferred. The plug-in fitting method only requires the first fixing sleeve 110 and the second fixing sleeve 120 to be aligned, which is convenient to install and suitable for large-scale production and application.

[0034] like Figure 1-3As shown in Figures 9, 11 and 12, at least one stage reduction mechanism and the clutch 140 are located in the second fixed sleeve 120. The number of reduction mechanisms 130 is determined according to actual needs, and is generally a two-stage reduction mechanism 130 or a three-stage reduction mechanism 130. It is preferred to use a two-stage reduction mechanism 130. A first accommodating chamber 121 and a second accommodating chamber 122 are provided in the second fixed sleeve 120. The first accommodating chamber 121 and the second accommodating chamber 122 are arranged back to back. Only two accommodating chambers are provided on one second fixed sleeve 120, and the two accommodating chambers can respectively accommodate the first stage reduction mechanism and the clutch 140. The assembly of the clutch 140 and at least one stage reduction mechanism can be realized by using a single fixed sleeve, which reduces the number of molds required, reduces costs, reduces assembly steps, and is relatively simple to assemble.

[0035] Specifically, Fig. 9 , 12 As shown, the second fixing sleeve 120 includes: openings, which are arranged at both ends of the second fixing sleeve 120; a partition 124, which is arranged in the second fixing sleeve 120, and the partition 124 divides the second fixing sleeve 120 into a first accommodating cavity 121 and a second accommodating cavity 122; and a through hole 125 is provided on the partition 124.

[0036] The second fixed sleeve 120 is provided with openings at both ends, and preferably a partition 124 is provided in the middle. The size of the opening can facilitate the clutch 140 or the speed reduction mechanism 130 to be placed in the first accommodating cavity 121 and the second accommodating cavity 122 during assembly. Preferably, the partition 124 and the second fixed sleeve 120 are integrally formed, which is easy to process. Of course, the partition 124 and the second fixed sleeve 120 can also be separate parts, and the partition 124 is subsequently fixed to the middle of the second fixed sleeve 120 by gluing, clamping, etc. The through hole 125 on the partition 124 facilitates the transmission shaft between the clutch 140 and the speed reduction mechanism 130 to pass through.

[0037] Specifically, Figure 1-3 As shown in FIGS. 11 and 11 , the reduction mechanism 130 includes a sun gear 131 and a plurality of planetary gears 132 . The plurality of planetary gears 132 are meshed with the sun gear 131 , and the plurality of planetary gears 132 are arranged along the circumference of the sun gear 131 .

[0038] Specifically, Figure 8 , 9 As shown, a second fixed gear ring 160 is provided in the second accommodating cavity 122 , and the second fixed gear ring 160 is meshed with multiple planetary gears 132 ; a first fixed gear ring 170 is provided in the first fixed sleeve 110 , and the first fixed gear ring 170 is meshed with multiple planetary gears 132 , and the second fixed sleeve 120 is transmission-connected with the planetary gears 132 .

[0039] Specifically, Figure 3As shown, it also includes: a support sleeve 150, which is arranged on the output shaft 230 of the motor 100 and is used to support the first fixed sleeve 110; a bracket, which is connected to the reduction mechanism 130 and is used to support the next stage reduction mechanism 130 or the clutch 140.

[0040] The reduction mechanism 130 is a relatively common planetary gear 132 reduction structure, including multiple planetary gears 132, preferably three planetary gears 132, of the same size, rotating around the sun gear 131. The corresponding second accommodating chamber 122 is provided with a second fixed gear ring 160, and the second fixed gear ring 160 and the second fixed sleeve 120 are preferably split parts, which are processed and formed separately, and the second fixed gear ring 160 is pre-installed into the second accommodating chamber 122 in the second fixed sleeve 120. During the operation of the planetary gear 132 reduction mechanism 130, the sun gear 131 is driven by the motor 100 as the active part, the second fixed gear ring 160 is stationary, the planetary gear 132 is the driven wheel, and the bracket is the output part, thereby achieving deceleration. The corresponding first fixed sleeve 110 is provided with a first fixed gear ring 170, and the first fixed gear ring 170 and the second fixed sleeve 120 are preferably an integral part, which are processed and formed as a whole. The principle of the planetary gear 132 reduction mechanism 130 is consistent with the planetary gear 132 mechanism in the second accommodating chamber 122.

[0041] The support sleeve 150 is arranged on the output shaft 230 of the motor 100. Since the first fixed sleeve 110 does not rotate during the operation of the motor 100, the support sleeve 150 serves to provide a support platform for the first fixed sleeve 110. Preferably, the first fixed sleeve 110 is a fixed collar. The end of the first fixed sleeve 110 close to the support sleeve 150 is provided with a cavity adapted to the support sleeve 150, and the end of the first fixed sleeve 110 away from the support sleeve 150 is provided in a cavity adapted to the speed reduction mechanism 130. The above-mentioned cavity is convenient for adapting to the support sleeve 150 and for the remaining speed reduction mechanism 130 to be installed in the first fixed sleeve 110. The support sleeve 150 is provided with a hole for the output shaft 230 of the motor 100 to pass through, and the support sleeve 150 is also provided with a fixing hole 180. The support sleeve 150 and the motor 100 are installed by connecting members such as screws and bolts through the fixing hole 180.

[0042] The bracket is a disc, and three fixing columns 210 are preferably provided on the back thereof, and the three fixing columns 210 are adapted to the three planetary gears 132. The bracket is divided into a first bracket 190 and a second bracket 200, and the first bracket 190 is located between the two reduction mechanisms 130, and the second bracket 200 is located between the reduction mechanism 130 and the clutch 140. The front of the first bracket 190 is provided with a sun gear 131 in the adjacent reduction mechanism 130. The front of the second bracket 200 is provided with a shaft sleeve connected to the clutch 140, and the shaft sleeve is preferably a spline shaft sleeve.

[0043] Specifically, Figure 1 ,2 As shown, the clutch 140 is provided with a reduction head 220 , and the reduction head 220 is provided with an output shaft 230 .

[0044] The reduction head 220 is the output part of the motor 100 after passing through the reduction mechanism 130 and the clutch 140. The output shaft 230 on the reduction head 220 is a sleeve, and the sleeve preferably adopts a spline sleeve, which can be matched with the corresponding spline shaft on the transmission box. Of course, the output shaft 230 on the reduction head 220 can also be a straight shaft, which is set accordingly according to the structure on the transmission box.

[0045] Specifically, Figure 1 , 2 As shown in FIGS. 3 and 6 , a Hall sensor 240 is also provided on the second fixed sleeve 120 , and a plurality of magnets 250 cooperating with the Hall sensor 240 are provided along the circumference of the speed reduction head 220 .

[0046] The Hall sensor 240 and the magnet 250 cooperate to detect the rotation of the reduction head 220 , so that the control board can obtain the number of rotations of the reduction head 220 , detect the stroke of the motor, and realize the clutch 140 .

[0047] Specifically, Figure 7 As shown, the clutch 140 includes: a rotating member 260, which is connected to the output of the reduction mechanism 130; an iron ring 270, which is coaxially connected to the rotating member 260; two magnetic beads 280, which are arranged on the iron ring 270 and are located on opposite sides of the rotating member 260; a groove 290, which is arranged on the inner side wall of the bottom of the reduction head 220; wherein, when the magnetic bead 280 is inserted into the groove 290, the reduction head 220 is connected to the clutch 140; when the magnet 250 is disengaged from the groove 290, the reduction head 220 is disengaged from the clutch 140.

[0048] The rotating member 260 is preferably an elliptical member, which is provided with two long ends and two short ends, and two magnetic beads 280 are respectively arranged on one side of the two short ends, and the two magnetic beads 280 are preferably arranged symmetrically about the center of the rotating member 260. The iron ring 270 is coaxially connected with the rotating member 260. When the motor 100 drives the rotating member 260 to rotate through the speed reduction mechanism 130, the rotation of the rotating member 260 will cause the magnetic beads 280 to move, so that the magnetic beads 280 are stuck in the groove 290, and the magnet 250 is against between the rotating member 260 and the speed reduction head 220. The continuous rotation of the rotating member 260 will drive the speed reduction head 220 to rotate at the same time, so that the speed reduction head 220 outputs. There is a certain spacing distance between the iron ring 270 and the groove 290, but the spacing distance is less than the diameter of the magnetic beads 280, which ensures that after part of the magnetic beads 280 enters the groove 290, part of the magnetic beads 280 is still in contact with the iron ring 270, that is, the magnetic beads 280 are always in contact with the iron ring 270. Preferably, if Figure 6As shown, a bearing 340 is also installed on the rotating member 260 . The arrangement of the bearing 340 can provide concentricity between the rotating member 260 and the output shaft 230 of the speed reduction mechanism 130 .

[0049] Specifically, the first protrusion 300 is disposed along the side wall of the first fixing sleeve 110 or the side wall of the second fixing sleeve 120 ; the first recess 310 matched with the first protrusion 300 is adaptively disposed along the side wall of the second fixing sleeve 120 or the side wall of the first fixing sleeve 110 .

[0050] In order to ensure quick assembly between the first fixing sleeve 110 and the second fixing sleeve 120, preferably, a plurality of first protrusions 300 are provided on the side wall of the first fixing sleeve 110, and the plurality of first protrusions 300 are arranged circumferentially; correspondingly, a plurality of first recesses 310 are provided on the side wall of the second fixing sleeve 120 close to one end of the first fixing sleeve 110, and the plurality of first recesses 310 are arranged circumferentially, and the plurality of first recesses 310 are relatively matched and connected with the plurality of first protrusions 300, so that the first fixing sleeve 110 and the second fixing sleeve 120 can be quickly plugged and assembled.

[0051] Specifically, Figure 4 , 5 As shown, it also includes an outer shell 320 and an iron shell 330 . The outer shell 320 is covered on the first fixing sleeve 110 and the second fixing sleeve 120 , and the iron shell 330 is covered on the outer shell 320 .

[0052] The housing 320 covers the first fixing sleeve 110 and the second fixing sleeve 120 for preliminary noise reduction. An iron shell 330 may be provided on the outer side of the housing 320 for further noise reduction, thereby ensuring that the motor movement has low noise during operation.

[0053] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0054] It should be understood that the present invention is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A motor movement, comprising a motor (100) and a first fixing sleeve (110), characterized in that: Also includes: a second fixing sleeve (120) assembled and connected to the first fixing sleeve (110); A first accommodating cavity (121) is located inside the second fixing sleeve (120) and is arranged away from the motor (100); A second accommodating cavity (122), located in the second fixing sleeve (120) and arranged close to the motor (100); At least one stage reduction mechanism (130) is accommodated in the second accommodation chamber (122), the clutch (140) is accommodated in the first accommodation chamber (121), and the second fixing sleeve (120) is transmission-connected to the reduction mechanism.

2. A motor movement according to claim 1, characterized in that: The second fixing sleeve (120) comprises: Openings are provided at two ends of the second fixing sleeve (120); a partition (124) disposed in the second fixing sleeve (120), wherein the partition (124) divides the second fixing sleeve (120) into the first accommodating chamber (121) and the second accommodating chamber (122); The partition plate (124) is provided with a through hole (125).

3. The motor movement according to claim 1, characterized in that: The speed reduction mechanism (130) comprises a sun gear (131) and a plurality of planetary gears (132). The plurality of planetary gears (132) are meshed with the sun gear (131), and the plurality of planetary gears (132) are arranged along the circumference of the sun gear (131).

4. A motor movement according to claim 3, characterized in that: A second fixed gear ring (160) is provided in the second accommodating cavity (122), and the second fixed gear ring (160) is meshed with the plurality of planetary gears (132); a first fixed gear ring (170) is provided in the first fixed sleeve (110), and the first fixed gear ring (170) is meshed with the plurality of planetary gears (132), and the second fixed sleeve (120) is transmission-connected with the planetary gears (132).

5. The motor movement according to claim 3, characterized in that: Also includes: A support sleeve (150), arranged on the output shaft of the motor (100), and used for supporting the first fixed sleeve (110); A bracket is connected to the speed reduction mechanism (130) and is used to support the next-stage speed reduction mechanism (130) or the clutch (140).

6. The motor movement according to claim 1, characterized in that: The clutch (140) is provided with a reduction head (220), and the reduction head (220) is provided with an output shaft (230).

7. The motor movement according to claim 6, characterized in that: A Hall sensor (240) is also provided on the second fixed sleeve (120), and a plurality of magnets (250) matching with the Hall sensor (240) are provided along the circumference of the speed reduction head (220).

8. The motor movement according to claim 6, characterized in that: The clutch (140) comprises: A rotating member (260) connected to an output of the speed reduction mechanism (130); An iron ring (270) is coaxially connected to the rotating member (260); Two magnetic beads (280) are arranged on the iron ring (270) and located on two opposite sides of the rotating member (260); The groove (290) is arranged on the inner side wall of the speed reduction head (220).

9. The motor movement according to claim 1, characterized in that: A first protrusion (300) is arranged along a side wall of the first fixing sleeve (110) or a side wall of the second fixing sleeve (120); A first recess (310) matched with the first protrusion (300) is adaptively arranged along the side wall of the second fixing sleeve (120) or the side wall of the first fixing sleeve (110).

10. A motor movement according to any one of claims 1 to 9, characterized in that: It also includes an outer shell (320) and an iron shell (330), wherein the outer shell (320) is covered on the first fixing sleeve (110) and the second fixing sleeve (120), and the iron shell (330) is covered on the outer shell (320).

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