Clutch

Abstract

The utility model relates to the technical field of clutches, and discloses a clutch which comprises a driving wheel, a driven wheel and a clutch wheel carrier. A clutch control table is arranged on the driving wheel, a guide inclined plane and a limiting groove are arranged on the clutch control table, and a magnetic attraction block is arranged on the guide inclined plane; the clutch wheel frame comprises a shaft sleeve and a limiting column, the limiting column penetrates through the limiting groove to be opposite to the guide inclined face, a magnetic attraction piece is arranged on the limiting column, the magnetic attraction piece can be attracted by the magnetic attraction block to move in the radial direction, the limiting column is arranged in a clutch rotating cavity of the driven wheel, and a gap is formed between the inner wall of the clutch rotating cavity and the outer wall of the limiting column. The clutch rotating cavity is provided with a protruding part, the width of the magnetic attraction piece is larger than the minimum distance from the protruding part to the guiding inclined face, and the width of the magnetic attraction piece is smaller than the maximum distance from the protruding part to the guiding inclined face. When the device is applied to a motor control assembly, mutual non-interference between automatic operation and manual operation can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of clutches, in particular to a clutch. Background Art

[0002] With the continuous improvement of living standards, people's requirements for highly automated products are gradually increasing. Automatic opening can also ensure manual opening at the same time, which is inseparable from the clutch, so that automatic operation and manual operation do not interfere with each other. Automatic opening will use a reduction motor, especially a reduction motor used in the intelligent field; the diameter of the roller in the existing clutch structure and the spacing between the clutch locking surface are matched to achieve the meshing of the driving wheel and the driven wheel, but because the roller is not bound in the separated state, the rotation speed is limited during manual operation to avoid the roller from being engaged in the gap between the driving wheel and the driven wheel due to inertia or shaking due to rapid rotation, so there is a lack of a clutch device that stably binds the roller in the separated state.

[0003] In summary, there is an urgent need for a clutch that can be used in a motor control assembly and can achieve automatic operation and manual operation without interference with each other. Utility Model Content

[0004] In view of the problems existing in the prior art, a clutch which can be applied in a motor control assembly and can realize automatic operation and manual operation without interference with each other is proposed.

[0005] In order to solve the above problems, the technical solution of the utility model is:

[0006] A clutch comprises a driving wheel, a driven wheel and a clutch wheel frame; the driving wheel is provided with a clutch console, the clutch console is provided with at least one group of guiding inclined surfaces and a limiting groove, and the guiding inclined surface is provided with a magnetic block; the clutch wheel frame comprises a shaft sleeve and a limiting column, the limiting column is provided on the shaft sleeve, the limiting column passes through the limiting groove and is opposite to the guiding inclined surface, the limiting column is provided with a clamping groove, a magnetic attraction piece is provided in the clamping groove, and the magnetic attraction block can adsorb the magnetic attraction piece, wherein the clamping groove drives the magnetic attraction piece to rotate around the axis, and the guiding inclined surface is used to limit the radial displacement of the magnetic attraction piece, the driven wheel is provided with a clutch rotating cavity, the limiting column is provided in the clutch rotating cavity, the inner wall of the clutch rotating cavity and the outer wall of the limiting column have a gap, the clutch rotating cavity is provided with a protrusion, the width of the magnetic attraction piece is greater than the minimum distance from the protrusion to the guiding inclined surface, and the width of the magnetic attraction piece is less than the maximum distance from the protrusion to the guiding inclined surface.

[0007] As a preferred technical solution, the magnetic attraction member is a cylindrical structure.

[0008] As a preferred technical solution, the guiding inclined surface has a V-shaped structure, and the magnetic attraction block is located at the turning position of the V-shaped structure.

[0009] As a preferred technical solution, an annular clamping groove is provided on the shaft sleeve, and the annular clamping groove is used for installing a clamping ball head positioning bead.

[0010] As a preferred technical solution, multiple groups of the guiding inclined surface and the limiting groove are provided on the clutch control platform.

[0011] Beneficial effects of the present invention:

[0012] The clutch of the present utility model includes a driving wheel, a driven wheel, and a clutch wheel frame. The clutch control between the driving wheel and the driven wheel can be realized through the cooperation of the clutch wheel frame and the driven wheel. A clutch control platform is provided on the driving wheel, and a guiding inclined surface and a limiting groove are provided on the clutch control platform. A limiting post is provided on the clutch wheel frame, and a magnetic attraction member that can move radially along the clamping groove thereon is provided on the limiting post. A magnetic attraction block that can adsorb the magnetic attraction member is provided on the guiding inclined surface. The clutch rotation cavity of the driven wheel is sleeved on the limiting post and the clutch control platform. A protruding portion is provided on the clutch rotation cavity. The width of the magnetic attraction member is greater than the minimum distance from the protruding portion to the guiding inclined surface, and the width of the magnetic attraction member is less than the maximum distance from the protruding portion to the guiding inclined surface. When the magnetic attraction block forms an adsorption on the magnetic attraction member, it will cause the magnetic attraction member to move away from and disengage from the contact with the clutch rotation cavity, so that the driven wheel and the driving wheel are in a completely separated state, enabling the driven wheel to rotate freely relative to the driving wheel. When the magnetic attraction member contacts the inner wall of the clutch rotation cavity under the extrusion of the guiding inclined surface and abuts against the protruding portion, the engagement of the driven wheel and the driving wheel can be realized, thereby realizing the rotation of the driving wheel driving the driven wheel. When the clutch of the present utility model is applied in a motor control assembly, it can achieve non-interference between automatic operation and manual operation. And when separated, the magnetic attraction member is stably adsorbed on the magnetic attraction block. Therefore, during manual operation, there is no constraint of rotational speed, making the manual operation more efficient. Description of the drawings

[0013] Figure 1 It is an exploded view of the components of the clutch of the present utility model;

[0014] Figure 2 It is a three-dimensional schematic diagram of the clutch of the present utility model;

[0015] Figure 3 It is a schematic diagram of the cooperation between the driving wheel and the clutch wheel frame of the clutch of the present utility model;

[0016] Figure 4 It is a partial sectional schematic diagram showing the meshing state of the clutch of the present utility model;

[0017] Figure 5This is a sectional view showing the separated state of the clutch described in the present utility model.

[0018] The reference numerals and components involved in the attached drawings are as follows:

[0019] 1. Driving wheel; 2. Driven wheel; 3. Clutch wheel carrier; 4. Magnetic component; 11. Clutch control console; 21. Clutch rotation cavity; 31. Sleeve; 32. Limit post; 111. Guiding inclined surface; 112. Limit groove; 113. Magnetic block; 211. Protrusion; 311. Annular clamping groove; 321. Card slot. Detailed implementation manners

[0020] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model will be given in conjunction with the drawings in the specification.

[0021] Please refer to the attached Figure 1 、attached Figure 2 、attached Figure 3 ; Figure 1 This is an exploded view of the components of the clutch described in the present utility model; Figure 2 This is a three-dimensional schematic diagram of the clutch described in the present utility model; Figure 3 This is a schematic diagram of the cooperation between the driving wheel and the clutch wheel carrier of the clutch described in the present utility model; A clutch includes a driving wheel 1, a driven wheel 2, and a clutch wheel carrier 3; The driving wheel 1 is used to be directly or indirectly connected to the driving wheel and rotates under the drive of the driving wheel. The driving wheel 1 is a disc gear, and a shaft hole for sleeving the rotating shaft is provided at its center. In the present utility model, a clutch control console 11 is provided at the center of the driving wheel 1. Preferably, in this embodiment, three guiding inclined surfaces 111 and limit grooves 112 corresponding to the guiding inclined surfaces 111 are provided on the clutch control console 11. The limit grooves 112 are annular groove holes with the central axis as the rotation axis. The guiding inclined surfaces 111 are V-shaped inclined surface structures and are facing the limit grooves 112. The turning vertex of the V-shaped inclined surface structure is located on the connection line between the center of the limit groove 112 and the axis center, that is, the symmetry plane of the limit groove 112 coincides with the symmetry plane of the guiding inclined surface 111. A magnetic block 113 is provided at the vertex of the guiding inclined surface 111, that is, the magnetic block 113 is farthest from the limit groove 112, and the two ends of the guiding inclined surface 111 are closest to the limit groove 112.

[0022] The clutch wheel carrier 3 includes a bushing 31 and a limit post 32; a shaft hole is provided at the center of the bushing 31 for sleeving a rotating shaft, and the limit post 32 is provided above the bushing 31 and is adapted to the limit groove 112. That is, three groups of the limit posts 32 are also evenly arranged around the axis. In some preferred embodiments, four groups, five groups, etc. can also be provided. The limit post 32 passes through the limit groove 112 and faces the guiding inclined surface 111. The limit post 32 can rotate around the axis along the limit groove 112. A clamping groove 321 is provided on the limit post 32, and a magnetic attraction member 4 is provided in the clamping groove 321. In this embodiment, the magnetic attraction member 4 is a cylindrical structure made of a magnetic attraction material. The clamping groove 321 is used to limit the circumferential displacement of the magnetic attraction member 4 around the axis, but does not limit the radial displacement of the magnetic attraction member 4. That is, the rotation of the magnetic attraction member 4 around the axis is driven by the limit post 32, but the magnetic attraction member 4 can move back and forth relative to the clamping groove 321. In some preferred embodiments, an annular clamping groove 311 is provided on the bushing 31 for providing stable installation. For example, when installing, an elastic pressing member such as a ball head locating bead with a contact part being a ball can be provided around the annular clamping groove 311, which can provide a certain damping for the clutch wheel carrier 3, so as to facilitate the relative displacement between the limit post 32 and the guiding inclined surface 111 to adjust the relative position of the magnetic attraction member 4.

[0023] The driven wheel 2 is also a disc gear, and a shaft hole for sleeving a rotating shaft is also provided at its center. In this embodiment, a clutch rotating cavity 21 is further provided at the center of the driven wheel 2. The clutch rotating cavity 21 is used for sleeving on the clutch control console 11 and the limit posts 32 outside the clutch control console 11. Among them, when coaxial, there is a gap between the inner wall of the clutch rotating cavity 21 and the limit post 32, so that the driven wheel 2 can freely rotate on the driving wheel 1. Three protruding parts 211 are provided on the cavity wall of the clutch rotating cavity 21 for corresponding to the magnetic attraction members 4 on each limit post 32. Among them, the width (i.e., diameter) of the magnetic attraction member 4 is greater than the minimum distance from the protruding part 211 to the guiding inclined surface 111, and the width (i.e., diameter) of the magnetic attraction member 4 is less than the maximum distance from the protruding part 211 to the guiding inclined surface 111. The clutch rotating cavity 21 can rotate relative to the limit post 32, and the limit post 32 can rotate relative to the clutch control console 11.

[0024] Please refer to the appendix Figure 4 , Figure 4 which is a partial sectional view showing the meshing state of the clutch described in the present invention; it should be understood that the appendix Figure 4 、 5The driven wheels shown are all legends of the driven wheels being sectioned to show the clutch rotation cavity 21. And in order to avoid affecting the marking identification, the section plane thereof is shaded, so this is hereby explained. The usage method of the present invention: After the installation is completed, taking the counterclockwise rotation of the driving wheel 1 as an example, first, the driving wheel 1 and the clutch control console 11 on the driving wheel 1 rotate counterclockwise. For the convenience of showing the position change relationship, here, the position relationship of the bottom area from the top view perspective of the driven wheel 2 is taken as an example for the orientation description. At this time, the clutch control console 11 moves to the right relative to the limit post 32 and the magnetic part 4 on the limit post 32, the left inclined surface of the guiding inclined surface 111 contacts the magnetic part 4, and pushes the magnetic part 4 to move radially towards the inner wall of the clutch rotation cavity 21 until the position of the magnetic part 4 interferes with the protruding position of the protruding part 211. As the rotation progresses, the left groove wall of the limit groove 112 contacts the limit post 32 and drives the clutch wheel frame 3 to rotate. At this time, driven by the limit post 32, the magnetic part 4 slides counterclockwise along the cavity wall of the clutch rotation cavity 21. When the magnetic part 4 contacts the protruding part 211, it further drives the driven wheel 2 to rotate, realizing the meshing transmission between the driven wheel 2 and the driving wheel 1.

[0025] Please refer to the appendix Figure 5 , Figure 5 is a schematic diagram of the section showing the separated state of the clutch described in the present invention; when the rotation of the driving wheel 1 stops, taking the end state of the above rotation as an example, at this time, the magnetic part 4 is clamped between the left inclined surface of the guiding inclined surface 111 and the left edge of the protruding part 211. At this time, when the driven wheel 2 is rotated counterclockwise, the clutch wheel frame 3 and the driving wheel 1 do not rotate until the right edge of another protruding part 211 contacts the magnetic part 4 and pushes the magnetic part 4 to rotate counterclockwise relative to the clutch control console 11 with respect to the limit post 32. At this time, the magnetic part 4 gradually moves towards the guiding inclined surface 111 away from the inner wall of the clutch rotation cavity 21, and under the suction force of the magnetic block 113, the magnetic part 4 also moves radially towards the axis relative to the limit post 32 until the outer surface of the magnetic part 4 does not contact the inner wall of the clutch rotation cavity 21. At this time, the driving wheel 1 and the clutch wheel frame 3 are in a separated state from the driven wheel 2, that is, the rotation of the driven wheel 2 will not drive the driving wheel 1 to rotate, thus realizing the clutch control. It should be understood that the clutch principles of clockwise rotation and counterclockwise rotation are the same, and the rotation process thereof will not be repeated here.

[0026] The clutch of the present utility model includes a driving wheel 1, a driven wheel 2, and a clutch wheel carrier 3. The engagement and disengagement control between the driving wheel 1 and the driven wheel 2 can be achieved through the cooperation between the clutch wheel carrier 3 and the driven wheel 2. A clutch control console 11 is provided on the driving wheel 1. A guiding inclined surface 111 and a limiting groove 112 are provided on the clutch control console 11. A limiting post 32 is provided on the clutch wheel carrier 3. A magnetic attracting member 4 that can move radially along a card slot 321 on it is provided on the limiting post 32. A magnetic attracting block 113 that can attract the magnetic attracting member 4 is provided on the guiding inclined surface 111. The clutch rotating cavity 21 of the driven wheel 2 is sleeved on the limiting post 32 and the clutch control console 11. A protruding portion 211 is provided on the clutch rotating cavity 21. The width of the magnetic attracting member 4 is greater than the minimum distance from the protruding portion 211 to the guiding inclined surface 111, and the width of the magnetic attracting member 4 is less than the maximum distance from the protruding portion 211 to the guiding inclined surface 111. When the magnetic attracting block 113 forms an attraction on the magnetic attracting member 4, it will cause the magnetic attracting member 4 to move away from and disengage from the contact with the clutch rotating cavity 21, so that the driven wheel 2 and the driving wheel 1 are in a completely separated state, and the driven wheel 2 can rotate freely relative to the driving wheel 1. When the magnetic attracting member 4 contacts the inner wall of the clutch rotating cavity 21 and abuts against the protruding portion 211 under the extrusion of the guiding inclined surface 111, the engagement between the driven wheel 2 and the driving wheel 1 can be achieved, so as to realize the rotation of the driving wheel 1 driving the driven wheel 2. When the clutch of the present utility model is applied in a motor control assembly, it can achieve non-interference between automatic operation and manual operation.

[0027] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and supplements can still be made, and these improvements and supplements should also be regarded as the protection scope of the present utility model.

Claims

1. A clutch, characterized in that, It includes a driving wheel, a driven wheel, and a clutch wheel frame; a clutch control console is provided on the driving wheel, at least one set of guiding inclined surfaces and limiting grooves are provided on the clutch control console, and magnetic attraction blocks are provided on the guiding inclined surfaces; the clutch wheel frame includes a shaft sleeve and a limiting post, the limiting post is provided on the shaft sleeve, the limiting post passes through the limiting groove and faces the guiding inclined surface, a clamping groove is provided on the limiting post, a magnetic attraction member is provided in the clamping groove, and the magnetic attraction block can adsorb the magnetic attraction member. Among them, the clamping groove drives the magnetic attraction member to rotate around the axis, and the guiding inclined surface is used to limit the radial displacement of the magnetic attraction member. The driven wheel is provided with a clutch rotating cavity, the limiting post is arranged in the clutch rotating cavity, there is a gap between the inner wall of the clutch rotating cavity and the outer wall of the limiting post, a protruding part is provided on the clutch rotating cavity, the width of the magnetic attraction member is greater than the minimum distance from the protruding part to the guiding inclined surface, and the width of the magnetic attraction member is less than the maximum distance from the protruding part to the guiding inclined surface.

2. The clutch according to claim 1, characterized in that, The magnetic attraction member is of a cylindrical structure.

3. The clutch according to claim 1, characterized in that, The guiding inclined surface is of a V-shaped structure, and the magnetic attraction block is located at the turning position of the V-shaped structure.

4. The clutch according to claim 1, characterized in that, An annular clamping groove is provided on the shaft sleeve, and the annular clamping groove is used for installing a clamping ball head positioning bead.

5. The clutch according to claim 1, characterized in that, Multiple groups of the guiding inclined surfaces and the limiting grooves are provided on the clutch control console.

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