Tubular motor with clutch function

Abstract

The utility model discloses a tubular motor with a clutch function, which is characterized in that the tubular motor comprises an end cover and a speed reducer, the speed reducer comprises a shell, a clutch assembly is arranged between the shell and the end cover, the clutch assembly comprises a positioning piece and an output piece, the positioning piece is fixedly connected between the end cover and the shell, and the output piece is fixedly connected between the end cover and the shell. The output part is rotationally connected with the end cover through the bearing, the bearing between the positioning part and the output part is omitted, the bearing is arranged between the output part and the end cover, the arrangement position of the bearing is changed, parts are more convenient to install, the end cover can be detached from the positioning part, the positioning part and the output part can be separated, and the positioning part and the output part can be separated. The receding groove provides a containing space for the output shaft of part of the speed reducer, and the length of the whole tubular motor can be shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of tubular motors, and more particularly to a tubular motor with a clutch function. Background Art

[0002] For electric curtains, a tubular motor is provided inside, and the roller blinds, venetian blinds, etc. are raised and lowered by the tubular motor, which can free hands. In the tubular motor with a clutch mechanism, it includes a positioning member and an output member, and the clutch part is provided between the positioning member and the output member, so as to realize the clutch function between the positioning member and the output member;

[0003] Conventionally, in order to ensure the coaxiality between the positioning member and the output member, a bearing is connected between the positioning member and the output member. However, the provision of the bearing makes the installation of the parts in the clutch part more complicated. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a tubular motor with a clutch function, which changes the position of the bearing and facilitates the installation of parts in the clutch part.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tubular motor with a clutch function, comprising an end cover and a reducer, the reducer comprising a housing, a clutch assembly being arranged between the housing and the end cover, the clutch assembly comprising a positioning member and an output member, the positioning member being fixedly connected between the end cover and the housing, and the output member being rotatably connected to the end cover via a bearing.

[0006] As a further improvement of the present invention, the clutch assembly further includes a clutch portion, and the clutch portion is arranged between the positioning member and the output member.

[0007] As a further improvement of the utility model, the clutch part includes a clutch component, an iron component and two magnetic beads. The clutch component is fixedly connected to the output shaft of the reducer. The two magnetic beads are respectively located on opposite sides of the clutch component and adsorbed on the iron component. Two grooves matching the magnetic beads are provided in the output component, and the iron component is circumferentially limited and connected to the positioning component.

[0008] As a further improvement of the present invention, the iron part includes a planar section and a vertical section, the planar section and the vertical section are integrally formed, the magnetic beads are adsorbed on the planar section, a spacing space is formed between the output shaft of the reducer and the positioning member, and the vertical section extends into the spacing space.

[0009] As a further improvement of the present invention, at least one first plane is formed on the outer side surface of the vertical section, and at least one second plane is formed on the inner wall of the positioning member, and the first plane is matched with the second plane.

[0010] As a further improvement of the present invention, the clutch member includes a clutch section and a cylindrical section, the clutch section and the cylindrical section are integrally formed, the two magnetic beads are respectively located on both sides of the clutch section, and the cylindrical section is in contact with the inner wall of the vertical section.

[0011] As a further improvement of the present invention, a first step is formed on one end of the positioning member facing the housing, and a second step is formed on one end of the housing facing the positioning member, and the first step is matched with the second step.

[0012] As a further improvement of the present invention, the positioning member is snap-connected to the end cover.

[0013] As a further improvement of the present invention, at least one limiting groove is formed on the end cover, and at least one limiting section is formed on the positioning member, and the limiting section is embedded in the limiting groove.

[0014] As a further improvement of the utility model, an avoidance groove is formed on the inner side of the output member, and part of the output shaft of the reducer extends into the avoidance groove.

[0015] The beneficial effects of the utility model are as follows: in the utility model, the bearing between the positioning member and the output member is eliminated, and the bearing is arranged between the output member and the end cover, thereby changing the arrangement position of the bearing, making it more convenient to install the parts; the end cover can be disassembled from the positioning member, so that the positioning member and the output member can be separated; the avoidance groove provides an accommodating space for the output shaft of part of the reducer, and the length of the overall tubular motor can be shortened. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a cross-sectional view of the utility model;

[0018] Figure 3 This utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 4 It is a structural schematic diagram of the positioning member in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the end cover in the utility model;

[0021] Figure 6It is a structural schematic diagram of the output member in the utility model;

[0022] Figure 7 It is a structural schematic diagram of the iron parts in the utility model;

[0023] Figure 8 It is a cross-sectional view of the clutch member of the utility model having a cylindrical section;

[0024] Fig. 9 This utility model Figure 8 A schematic diagram of the enlarged structure at B in the middle;

[0025] Fig.10 It is a structural schematic diagram of a clutch member with a cylindrical section in the utility model.

[0026] Figure numerals: 1. end cover; 11. limit groove; 2. reducer; 21. housing; 22. second step; 3. positioning member; 31. second plane; 32. first step; 33. limit section; 4. output member; 41. avoidance groove; 5. bearing; 6. clutch part; 61. clutch member; 611. clutch section; 612. cylindrical section; 62. iron member; 621. plane section; 622. vertical section; 623. first plane; 63. magnetic bead; 64. groove; 7. spacing space. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom surface" and "top surface", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0028] Reference Figures 1 to 7 As shown, a tubular motor with a clutch function in this embodiment includes an end cover 1 and a reducer 2, wherein the end cover 1 is detachably connected to the outer tube of the tubular motor and connected by bolts;

[0029] The reducer 2 includes a housing 21, a planetary gear reduction group is located in the housing 21, and the reducer 2 is connected to the motor to reduce the output of the motor;

[0030] A clutch assembly is arranged between the housing 21 and the end cover 1. The clutch assembly is used to realize the clutch function of the motor. The clutch assembly includes a positioning member 3 and an output member 4. The positioning member 3 is fixedly connected between the end cover 1 and the housing 21. The output member 4 is rotatably connected to the end cover 1 through a bearing 5. The bearing 5 between the positioning member 3 and the output member 4 is cancelled, and the bearing 5 is arranged between the output member 4 and the end cover 1. The setting position of the bearing 5 is changed, making it more convenient to install the parts. The end cover 1 can be disassembled from the positioning member 3, so that the positioning member 3 and the output member 4 can be separated.

[0031] The clutch assembly further includes a clutch portion 6 , which is disposed between the positioning member 3 and the output member 4 .

[0032] Reference Figure 2 and Figure 3 As shown, the clutch part 6 includes a clutch member 61, an iron member 62 and two magnetic beads 63. The clutch member 61 is fixedly connected to the output shaft of the reducer 2. Two first fixed surfaces are provided on the output shaft of the reducer 2. A through hole is formed on the clutch member 61. Two second fixed surfaces are provided in the through hole. The first fixed surface corresponds to the second fixed surface, so that the output shaft of the reducer 2 can simultaneously drive the clutch member 61 to rotate.

[0033] The two magnetic beads 63 are respectively located on the opposite sides of the clutch 61 and adsorbed on the iron piece 62. Two grooves 64 adapted to the magnetic beads 63 are provided in the output piece 4. A accommodating cavity is provided in the output piece 4. The magnetic beads 63 are located in the accommodating cavity. The grooves 64 are provided on the cavity wall of the accommodating cavity. The iron piece 62 is circumferentially limited and connected to the positioning piece 3, so that during the rotation of the output shaft of the reducer 2, the iron piece 62 will not rotate, so that the clutch 61 can push the magnetic beads 63 to be stuck in the corresponding grooves 64, so that the magnetic beads 63 are stuck between the clutch 61 and the output piece 4. When the clutch 61 rotates, it can drive the output piece 4 to rotate at the same time. When the clutch 61 does not rotate, the magnetic beads 63 are separated from the grooves 64 and adsorbed on the iron piece 62, so that the clutch 61 and the output piece 4 are separated.

[0034] Reference Figure 7 As shown, the iron piece 62 includes a plane section 621 and a vertical section 622. The plane section 621 and the vertical section 622 are integrally formed. The plane section 621 and the vertical section 622 are perpendicular to each other. The magnetic bead 63 is adsorbed on the plane section 621. A spacing space 7 is formed between the output shaft of the reducer 2 and the positioning member 3. The vertical section 622 extends into the spacing space 7, which can ensure the coaxiality between the iron piece 62 and the clutch member 61.

[0035] In this embodiment, a circular hole is formed on the vertical section 622 , and the circular hole fits with the output shaft of the reducer 2 , and the output shaft of the reducer 2 passes through the circular hole.

[0036] Reference Figure 4 , Figure 7 As shown, at least one first plane 623 is formed on the outer side surface of the vertical section 622, and at least one second plane 31 is formed on the inner wall of the positioning member 3. The first plane 623 is adapted to the second plane 31. Preferably, in this embodiment, two first planes 623 and two second planes 31 are provided, and the two first planes 623 are arranged opposite to each other, so as to realize the circumferential limitation of the iron member 62 by the positioning member 3 to prevent the iron member 62 from rotating.

[0037] In another embodiment, referring to Figure 8 , Fig. 9 and Fig.10 As shown, the clutch 61 includes a clutch section 611 and a cylindrical section 612. The clutch section 611 and the cylindrical section 612 are integrally formed. Two magnetic beads 63 are respectively located on both sides of the clutch section 611. The cylindrical section 612 is fitted with the inner wall of the vertical section 622. The circular hole on the vertical section 622 is adapted to the cylindrical section 612 to ensure the coaxiality between the iron piece 62 and the clutch 61.

[0038] Reference Figure 3 and Figure 4 As shown, a first step 32 is formed at one end of the positioning member 3 facing the housing 21, and a second step 22 is formed at one end of the housing 21 facing the positioning member 3. The first step 32 is adapted to the second step 22, and the first step 32 and the second step 22 are abutted against each other to form a positioning;

[0039] The positioning member 3 is fixedly connected to the housing 21 of the reducer 2 by bolts, thereby increasing the stability of the positioning member 3 .

[0040] Reference Figure 4 and Figure 5 As shown, the positioning member 3 is snap-connected to the end cover 1 , and the positioning member 3 forms an axial limit for the end cover 1 to prevent the end cover 1 from moving in the axial direction, which is the axial direction of the output shaft of the reducer 2 .

[0041] At least one limiting groove 11 is formed on the end cover 1, and at least one limiting section 33 is formed on the positioning member 3. The limiting section 33 is embedded in the limiting groove 11. Preferably, two limiting grooves 11 and two limiting sections 33 are provided, which serve to limit the circumferential position of the positioning member 3 and prevent the circumferential rotation of the positioning member 3.

[0042] Reference Figure 3 and Fig. 9 As shown, an avoidance groove 41 is formed on the inner side of the output member 4, and the output shaft of part of the reducer 2 extends into the avoidance groove 41. The avoidance groove 41 provides a receiving space for the output shaft of part of the reducer 2, which can shorten the length of the overall tubular motor.

[0043] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A tubular motor with a clutch function, characterized in that: The invention comprises an end cover (1) and a reducer (2), wherein the reducer (2) comprises a housing (21), a clutch assembly is arranged between the housing (21) and the end cover (1), and the clutch assembly comprises a positioning member (3) and an output member (4), wherein the positioning member (3) is fixedly connected between the end cover (1) and the housing (21), and the output member (4) is rotatably connected to the end cover (1) via a bearing (5).

2. A tubular motor with clutch function according to claim 1, characterized in that: The clutch assembly further comprises a clutch portion (6), wherein the clutch portion (6) is arranged between the positioning member (3) and the output member (4).

3. The tubular motor with clutch function according to claim 2, characterized in that: The clutch part (6) comprises a clutch member (61), an iron member (62) and two magnetic beads (63); the clutch member (61) is fixedly connected to the output shaft of the reducer (2); the two magnetic beads (63) are respectively located on two opposite sides of the clutch member (61) and adsorbed on the iron member (62); two grooves (64) adapted to the magnetic beads (63) are provided in the output member (4); and the iron member (62) is circumferentially limitedly connected to the positioning member (3).

4. The tubular motor with clutch function according to claim 3, characterized in that: The iron piece (62) comprises a plane section (621) and a vertical section (622), the plane section (621) and the vertical section (622) are integrally formed, the magnetic bead (63) is adsorbed on the plane section (621), a spacing space (7) is formed between the output shaft of the reducer (2) and the positioning piece (3), and the vertical section (622) extends into the spacing space (7).

5. The tubular motor with clutch function according to claim 4, characterized in that: At least one first plane (623) is formed on the outer side surface of the vertical section (622), and at least one second plane (31) is formed on the inner wall of the positioning member (3), and the first plane (623) is adapted to the second plane (31).

6. The tubular motor with clutch function according to claim 4, characterized in that: The clutch member (61) comprises a clutch section (611) and a cylindrical section (612); the clutch section (611) and the cylindrical section (612) are integrally formed; the two magnetic beads (63) are respectively located on both sides of the clutch section (611); and the cylindrical section (612) is in contact with the inner wall of the vertical section (622).

7. The tubular motor with clutch function according to claim 1, characterized in that: A first step (32) is formed at one end of the positioning member (3) facing the housing (21), and a second step (22) is formed at one end of the housing (21) facing the positioning member (3), and the first step (32) is adapted to fit the second step (22).

8. The tubular motor with clutch function according to claim 1, characterized in that: The positioning member (3) is snap-fitted to the end cover (1).

9. The tubular motor with clutch function according to claim 1, characterized in that: At least one limiting groove (11) is formed on the end cover (1), and at least one limiting section (33) is formed on the positioning member (3), wherein the limiting section (33) is embedded in the limiting groove (11).

10. The tubular motor with clutch function according to claim 1, characterized in that: An avoidance groove (41) is formed on the inner side of the output member (4), and a portion of the output shaft of the reducer (2) extends into the avoidance groove (41).

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