Composite tooth type electromagnetic clutch with braking function

Abstract

The utility model provides a composite tooth type electromagnetic clutch with a braking function, which comprises a driven fluted disc which is fixedly connected with a power output end and is provided with first meshing teeth, an inner ring which is fixedly connected with a load input end, and a magnet yoke which is fixedly connected with a rack and is provided with second meshing teeth, the movable disc is arranged between the magnet yoke and the driven fluted disc and is provided with third meshing teeth and fourth meshing teeth; a coil is arranged on the magnet yoke; the movable disc and the inner ring are connected through a spring piece, and an elastic piece is arranged between the movable disc and the inner ring. The clutch has dual functions of a clutch and braking. Compared with an existing friction mode, through the meshing mode of the meshing teeth, abrasion is greatly reduced, the service life is prolonged, the torque is large, the transmission torque is large, the structure is simple, installation is convenient, and later maintenance is also convenient.

Description

Technical Field

[0001] This utility model relates to the field of clutch technology, and more specifically, to a composite toothed electromagnetic clutch with braking function. Background Technology

[0002] Currently available on the market are typically only standalone electromagnetic brakes or standalone electromagnetic clutches, which mainly achieve braking or clutch functions through friction. These are prone to wear during frequent braking, requiring regular replacement of brake pads and increasing maintenance costs. At the same time, they have low braking torque, are prone to wear, are susceptible to high temperatures, have short service life, and have a high failure rate. They have not been able to meet the working conditions of applications requiring dual functions (clutch and braking) with limited space, high torque, and long service life. For such applications, there is an urgent need for a clutch that has small space, high torque, and long service life to meet the requirements. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a composite toothed electromagnetic clutch with braking function to solve the above problems.

[0004] The present invention adopts the following solution:

[0005] This application provides a composite toothed electromagnetic clutch with braking function, including a driven toothed disc with a first meshing tooth for fixing the power output end, an inner ring for fixing the load input end, a magnetic yoke with a second meshing tooth for fixing the frame, and a moving disc with a third and a fourth meshing tooth disposed between the magnetic yoke and the driven toothed disc.

[0006] A coil is provided on the magnetic yoke; the moving disk and the inner ring are connected by a spring sheet, and an elastic element is provided between the moving disk and the inner ring;

[0007] Under the action of the elastic element and the spring plate, the first meshing tooth engages with the third meshing tooth to realize the transmission between the driven toothed disc and the moving disc; when the coil is energized, a magnetic field is generated so that the moving disc overcomes the action of the elastic element and the spring plate and moves away from the driven toothed disc, causing the first meshing tooth to disengage from the third meshing tooth and move closer to the magnetic yoke so that the fourth meshing tooth engages with the second meshing tooth to achieve braking.

[0008] Furthermore, the spring sheet is ring-shaped and is connected to the moving disk and the inner ring by multiple fasteners, wherein two adjacent fasteners connect the spring sheet to the moving disk and the inner ring respectively.

[0009] Furthermore, the connector is also provided with at least two gaskets, which are respectively placed on both sides of the spring sheet.

[0010] Furthermore, the magnetic yoke is provided with an annular groove with an open end face along the axial direction, and the coil is disposed in the annular groove.

[0011] Furthermore, the annular groove is filled with epoxy resin, and the lead end of the coil is fastened to the magnetic yoke through a waterproof connector.

[0012] Furthermore, the magnetic yoke is made of silicon-manganese spring steel, and its tooth surface hardness is improved through heat treatment.

[0013] Furthermore, the meshing teeth are all located on the end face to achieve end face meshing of the moving disk, the magnetic yoke, and the driven toothed disk.

[0014] Furthermore, the first meshing tooth, the second meshing tooth, the third meshing tooth, and the fourth meshing tooth are all trapezoidal teeth.

[0015] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0016] This invention provides a composite toothed electromagnetic clutch with braking function, which has both clutch and braking functions. Compared with the existing friction method, it greatly reduces wear and increases service life through the meshing of teeth. It also has a large torque transmission capacity, a simple structure, is easy to install, and facilitates later maintenance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is an exploded view of a composite gear-type electromagnetic clutch with braking function according to an embodiment of the present invention. Figure 1 ;

[0019] Figure 2 This is an exploded view of a composite gear-type electromagnetic clutch with braking function according to an embodiment of the present invention. Figure 2 ;

[0020] Figure 3 This is a cross-sectional structural schematic diagram of a composite toothed electromagnetic clutch with braking function according to an embodiment of the present invention.

[0021] Figure 4 This is a left view of a composite toothed electromagnetic clutch with braking function according to an embodiment of this utility model.

[0022] Icons: Driven gear 1, First meshing tooth 2, Inner ring 3, Magnetic yoke 4, Second meshing tooth 5, Moving disc 6, Third meshing tooth 7, Fourth meshing tooth 8, Coil 9, Spring plate 10, Elastic element 11, Epoxy resin 12, Waterproof connector 13, Mounting groove 14, First connecting groove 15, Second connecting groove 16, Connecting hole 17, Gasket 18. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Example

[0025] Combination Figures 1 to 4 As shown, this embodiment provides a composite toothed electromagnetic clutch with braking function, including a driven toothed disc 1 with a first meshing tooth 2 for fixing the power output end, an inner ring 3 for fixing the load input end, a magnetic yoke 4 with a second meshing tooth 5 for fixing the frame, and a moving disc 6 with a third meshing tooth 7 and a fourth meshing tooth 8 disposed between the magnetic yoke 4 and the driven toothed disc 1.

[0026] A coil 9 is provided on the magnetic yoke 4; the moving disk 6 and the inner ring 3 are connected by a spring plate 10, and an elastic element 11 is provided between the moving disk 6 and the inner ring 3;

[0027] Under the action of the elastic element 11 and the spring plate 10, the first meshing tooth 2 engages with the third meshing tooth 7 to realize the transmission between the driven toothed disk 1 and the moving disk 6; when the coil 9 is energized, a magnetic field is generated so that the moving disk 6 overcomes the action of the elastic element 11 and the spring plate 10 and moves away from the driven toothed disk 1, so that the first meshing tooth 2 disengages from the third meshing tooth 7 and moves closer to the magnetic yoke 4 so that the fourth meshing tooth 8 engages with the second meshing tooth 5 to achieve braking.

[0028] This composite gear-type electromagnetic clutch with braking function has both clutch and braking functions. Compared with the existing friction method, it greatly reduces wear and increases service life through the meshing of gears. It also has a large torque transmission capacity, a simple structure, is easy to install, and facilitates later maintenance.

[0029] Specifically, in this embodiment, the magnetic yoke 4 is a hollow ring, with an open annular groove on one end face near the moving disk 6. The coil 9 is disposed within the annular groove, which is filled with epoxy resin 12. The lead end of the coil 9 is fastened to the magnetic yoke 4 via a waterproof connector 13. The epoxy resin 12 filler fixes the coil 9 within the annular groove and also seals the coil 9. The fourth meshing tooth 8 is provided on the end face, and the other end face can be fixedly connected to the frame with bolts.

[0030] In this embodiment, the inner ring 3 is rotatably disposed in the hollow space of the axis of the magnetic yoke 4. Multiple mounting grooves 14 and multiple first connecting grooves 15 are provided on one end face near the moving disk 6. Multiple second connecting grooves 16 are provided on the moving disk 6. The spring plate 10 is annular and has multiple connecting holes 17. Adjacent connecting holes 17 are connected to the first connecting groove 15 and the second connecting groove 16 respectively by bolts or screws, so that the spring plate 10 is connected to the moving disk 6 and the inner ring 3 respectively. At least two washers 18 are also provided on the bolts or screws, respectively placed on both sides of the spring plate 10, to ensure the stability of the connection between the spring plate 10 and the moving disk 6 and the inner ring 3. The elastic element 11, which is a compression spring, is disposed within the mounting groove 14. The end face of the moving disk 6 near the magnetic yoke 4 is provided with a second meshing tooth 5 that can mesh with the fourth meshing tooth 8, and the other end face is provided with a third meshing tooth 7. The driven gear 1 has a first meshing tooth 2 on its end face near the driven gear 6, which can mesh with the third meshing tooth 7. The driven gear 1 can be fixedly connected to the power output end by screws.

[0031] Under normal conditions, the moving disk 6, under the action of the compression spring and the spring plate 10, moves away from the magnetic yoke 4 and closer to the driven gear disk 1, so that the fourth meshing tooth 8 is disengaged from the second meshing tooth 5, while the third meshing tooth 7 is engaged with the first meshing tooth 2. At this time, the power at the output end is transmitted from the driven gear disk 1 to the moving disk 6, and then to the load via the inner ring 3. When the equipment stops, the coil 9 is energized to generate a magnetic field, causing the moving disk 6 to overcome the action of the elastic element 11 and the spring plate 10, move away from the driven gear disk 1 and closer to the magnetic yoke 4, so that the first meshing tooth 2 is disengaged from the third meshing tooth 7. At this time, the power of the driven gear disk 1 is no longer transmitted to the moving disk 6; furthermore, the fourth meshing tooth 8 engages with the second meshing tooth 5, and rapid braking is achieved under the action of the load and the spring plate 10. It is understandable that after the first meshing tooth 2 disengages from the third meshing tooth 7, the rotation of the inner ring 3 begins to decelerate under the action of the load, and braking is achieved when the fourth meshing tooth 8 meshes with the second meshing tooth 5. Of course, after the fourth meshing tooth 8 meshes with the second meshing tooth 5, the spring plate 10 can provide a buffering effect for the inner ring 3.

[0032] Furthermore, in this embodiment, the meshing teeth are all disposed on the end face to achieve end face meshing of the moving disk 6, the magnetic yoke 4, and the driven toothed disk 1. Moreover, the first meshing tooth 2, the second meshing tooth 5, the third meshing tooth 7, and the fourth meshing tooth 8 are all trapezoidal teeth, which have the characteristics of large torque and large torque transmission.

[0033] Furthermore, in this embodiment, the magnetic yoke 4 is made of silicon-manganese spring steel, and the grains are refined through heat treatment to improve magnetic permeability and increase the surface hardness of the meshing teeth, making them more wear-resistant and extending their service life.

[0034] This utility model provides a composite toothed electromagnetic clutch with braking function, which has both clutch and braking functions. Compared with the existing friction method, it greatly reduces wear and increases service life through the meshing of teeth. It also has a large torque transmission capacity, a simple structure, convenient installation, and facilitates later maintenance.

[0035] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions that fall within the scope of this utility model's concept are protected by this utility model.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 utility model.

[0037] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

Claims

1. A composite gear-type electromagnetic clutch with braking function, comprising a driven gear disc having a first meshing tooth for fixing the power output end, and an inner ring for fixing the load input end, characterized in that, It also includes a magnetic yoke with a second meshing tooth for fixing the frame, and a moving disk with a third meshing tooth and a fourth meshing tooth disposed between the magnetic yoke and the driven toothed disk; A coil is provided on the magnetic yoke; the moving disk and the inner ring are connected by a spring sheet, and an elastic element is provided between the moving disk and the inner ring; Under the action of the elastic element and the spring plate, the first meshing tooth engages with the third meshing tooth to realize the transmission between the driven toothed disc and the moving disc; when the coil is energized, a magnetic field is generated so that the moving disc overcomes the action of the elastic element and the spring plate and moves away from the driven toothed disc, causing the first meshing tooth to disengage from the third meshing tooth and move closer to the magnetic yoke so that the fourth meshing tooth engages with the second meshing tooth to achieve braking.

2. The composite gear-type electromagnetic clutch with braking function according to claim 1, characterized in that, The spring plate is ring-shaped and is connected to the moving disk and the inner ring by multiple fixing members, wherein two adjacent connecting members connect the spring plate to the moving disk and the driven gear disk respectively.

3. The composite gear-type electromagnetic clutch with braking function according to claim 2, characterized in that, The connector is also provided with at least two washers, which are respectively placed on both sides of the spring sheet.

4. The composite gear-type electromagnetic clutch with braking function according to claim 1, characterized in that, The magnetic yoke has an annular groove with an open end face along the axial direction, and the coil is disposed in the annular groove.

5. The composite gear-type electromagnetic clutch with braking function according to claim 4, characterized in that, The annular groove is filled with epoxy resin, and the lead end of the coil is fastened to the magnetic yoke through a waterproof connector.

6. The composite gear-type electromagnetic clutch with braking function according to claim 1, characterized in that, The magnetic yoke is made of silicon-manganese spring steel, and its tooth surface hardness is improved through heat treatment.

7. The composite gear-type electromagnetic clutch with braking function according to any one of claims 1-6, characterized in that, The meshing teeth are all located on the end face to achieve end face meshing of the moving disk, the magnetic yoke, and the driven toothed disk.

8. The composite gear-type electromagnetic clutch with braking function according to claim 7, characterized in that, The first meshing tooth, the second meshing tooth, the third meshing tooth, and the fourth meshing tooth are all trapezoidal teeth.

Images