Easy-to-assemble non-excitation clutch

Abstract

A publicly disclosed easy-to-assemble non-excitation clutch comprises: a mounting hole, an annular mounting groove, and a stepped platform arranged sequentially from the center outwards on the inner side of the magnetic yoke; a central spring is located within the mounting hole of the magnetic yoke, with one end connected to the armature plate; a splined shaft is located inside the central spring, with one end passing through the central hole of the armature plate and connecting to a friction disc; a convex ring is connected to the end face of the mounting plate, and multiple protrusions are connected to the convex ring, with threaded through holes on the protrusions; during assembly of the mounting plate and the magnetic yoke, the friction disc is located inside the convex ring of the mounting plate, the protrusions of the mounting plate are placed within the guide notches of the armature plate, and the end faces of the protrusions contact the top surface of the stepped platform of the magnetic yoke; bolts are simultaneously screwed into the threaded through holes of both the magnetic yoke and the mounting plate. This clutch structure avoids the use of multiple spacers and uses only one central spring, reducing the number of assembly parts, effectively reducing assembly complexity, enabling rapid assembly, and making assembly simpler and more convenient.

Description

Technical Field

[0001] This utility model belongs to the field of clutches, specifically relating to an easy-to-assemble non-excitation clutch. Background Technology

[0002] A non-energized clutch generates a braking effect by relying on the elastic force of a spring when no power is applied. The brake disc is tightly pressed against the brake surface under the action of the spring force, and the friction between them is used to hinder the operation of the equipment.

[0003] Existing non-magnetic clutches typically contain several pressure springs evenly arranged around the circumference, which are mounted between the brake disc and the clutch cover. The mounting plate needs to be screwed through spacers and locked to the clutch cover, and multiple spacers are also required to provide installation and operating space for the brake disc and friction disc. Such non-magnetic clutches contain a large number of parts, making assembly cumbersome. Summary of the Invention

[0004] To address the shortcomings of existing non-excitation clutches, this utility model redesigns the structure of the non-excitation clutch and provides an easy-to-assemble non-excitation clutch, which includes a magnetic yoke, coil, central spring, armature disk, spline shaft, friction disk, and mounting plate. The inner side of the magnetic yoke is provided with a mounting hole, an annular mounting groove and a stepped platform from the center outward. These structures are integrally formed by the magnetic yoke, and the coil is set in the annular mounting groove. The central spring is disposed in the mounting hole of the magnetic yoke, and one end of the central spring is connected to the armature disk. Guide notches are evenly distributed on the outer edge of the armature disk. A spline shaft is disposed inside the central spring, and one end of the spline shaft passes through the central hole of the armature disk and is connected to a friction disk. The mounting plate has a convex ring integrally connected to its end face, and multiple protrusions integrally connected to the convex ring. The protrusions correspond one-to-one with the guide notches of the armature disk. The protrusions have threaded through holes that penetrate the entire mounting plate. The stepped platform of the magnetic yoke also has corresponding threaded through holes. When assembling the mounting plate and the magnetic yoke, the friction disc is located inside the convex ring of the mounting plate, providing operating space for the friction disc. The protrusion of the mounting plate is placed in the guide notch corresponding to the armature disk, providing guidance for the movement of the armature disk. The end face of the protrusion contacts the top surface of the stepped platform of the magnetic yoke. Of course, their corresponding threaded through holes are coaxially arranged. Bolts are simultaneously screwed into the threaded through holes of the magnetic yoke and the corresponding threaded through holes of the mounting plate to complete the assembly connection of the mounting plate and the magnetic yoke.

[0005] This non-excitation clutch, by eliminating the need for multiple spacers and employing only a single central spring, significantly reduces assembly complexity and enables rapid assembly. The structural design of the mounting plate and yoke further simplifies assembly. Furthermore, while existing non-excitation clutches require machining multiple spring holes in the yoke or clutch cover, the easily assembled non-excitation clutch of this application uses only one large spring at the center, avoiding the need for machining multiple spring holes and reducing manufacturing difficulty.

[0006] Preferably, an annular groove is also provided on the inner side of the magnetic yoke, the annular groove is located above the stepped platform, and a corresponding convex strip is integrally connected to the outer side of the convex ring of the mounting plate. When the mounting plate and the magnetic yoke are assembled, after pressing the mounting plate, the convex strip of the mounting plate is located in the annular groove of the magnetic yoke, which plays a role in limiting and pre-tightening, making the subsequent bolt connection more convenient.

[0007] Furthermore, the central spring is disposed in the mounting hole of the magnetic yoke by a spring sleeve, the spring sleeve being interference-fitted with the mounting hole, and a limit ring integrally connected to one end of both the spring sleeve and the mounting hole to prevent the central spring from detaching from the spring sleeve and to prevent the spring sleeve from detaching from the mounting hole.

[0008] Through the above technical solutions, this utility model has at least the following beneficial effects: The easily assembled non-excitation clutch described in this application, through the redesign of structural components such as the magnetic yoke, coil, central spring, armature disk, spline shaft, friction disk, and mounting plate, avoids the use of multiple spacers and has only one central spring compared to existing clutches. This reduces the number of parts and assembly components, effectively reducing the complexity of assembly and enabling rapid assembly. The structural design of its mounting plate and magnetic yoke also makes assembly simpler and more convenient.

[0009] In addition, existing non-excitation clutches require multiple spring holes to be machined on the yoke or clutch cover. The easy-to-assemble non-excitation clutch of this application uses only one large spring at the center, which also avoids the machining of multiple spring holes and reduces the manufacturing difficulty. Attached Figure Description

[0010] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of this utility model in a schematic manner. Therefore, they only show the components related to this utility model.

[0011] Figure 1 This is a schematic diagram of the overall structure of the easily assembled non-excitation clutch described in the embodiments of this application; Figure 2 for Figure 1A sectional view; Figure 3 This is a schematic diagram of the structure of the magnetic yoke described in the embodiments of this application; Figure 4 This is a schematic diagram of the mounting plate described in the embodiments of this application; Figure 5 This is a schematic diagram of the armature disk structure described in the embodiments of this application; Detailed Implementation

[0012] In the description of this application, it should be understood that the terms "upper," "lower," "left," "right," "front," and "rear," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model 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. Therefore, the terms describing positional relationships are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0013] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0014] refer to Figures 1 to 5 An easily assembled non-excitation clutch includes a magnetic yoke 1, a coil 2, a central spring 3, an armature disk 4, a splined shaft 5, a friction disk 6, and a mounting plate 7. The inner side of the magnetic yoke 1 is provided with a mounting hole 101, an annular mounting groove 102 and a stepped platform 103 from the center outward. These structures are integrally formed by the magnetic yoke 1, and the coil 2 is disposed in the annular mounting groove 102. The central spring 3 is disposed in the mounting hole 101 of the magnetic yoke 1. One end of the central spring 3 is connected to the armature disk 4. Multiple guide notches 401 are evenly distributed on the outer edge of the armature disk 4. A spline shaft 5 is disposed inside the central spring 3. One end of the spline shaft 5 passes through the central hole of the armature disk 4 and is connected to the friction disk 6. The end face of the mounting plate 7 is integrally connected with a protruding ring 701, and a plurality of protrusions 702 are integrally connected on the protruding ring 701. The protrusions 702 correspond one-to-one with the guide notches 401 of the armature disk 4. The protrusions 702 are provided with threaded through holes that penetrate the entire mounting plate 7. The stepped platform 103 of the magnetic yoke 1 is also provided with corresponding threaded through holes. refer to Figure 2 When mounting plate 7 and magnetic yoke 1 are assembled, friction disc 6 is located inside the convex ring 701 of mounting plate 7, providing operating space for friction disc 6. The protrusion 702 of mounting plate 7 is placed in the guide notch 401 corresponding to armature disk 4, providing guidance for the movement of armature disk 4. The end face of protrusion 702 is in contact with the top surface of stepped platform 103 of magnetic yoke 1. Of course, their corresponding threaded through holes are coaxially arranged. Bolt 8 is simultaneously screwed into the threaded through hole of magnetic yoke 1 and the corresponding threaded through hole of mounting plate 7 to complete the assembly connection of mounting plate 7 and magnetic yoke 1.

[0015] This non-excitation clutch, by eliminating the need for multiple spacers and employing only a single central spring 3, has a significantly reduced number of parts, drastically reducing assembly complexity and enabling rapid assembly. The structural design of the mounting plate 7 and the magnetic yoke 1 further simplifies and facilitates assembly. Furthermore, while existing non-excitation clutches require machining multiple spring holes in the magnetic yoke 1 or clutch cover, the easily assembled non-excitation clutch of this application uses only one large spring at the center, avoiding the need for machining multiple spring holes and reducing manufacturing difficulty.

[0016] refer to Figure 3 The inner surface of the magnetic yoke 1 is also provided with an annular groove 104, which is located above the stepped platform 103. (Reference) Figure 4 The mounting plate 7 has a corresponding protruding strip 703 integrally connected to the outer surface of the protruding ring 701. When the mounting plate 7 and the magnetic yoke 1 are assembled, refer to Figure 2 After pressing the mounting plate 7, the protrusion 703 of the mounting plate 7 is located in the annular groove 104 of the magnetic yoke 1, which serves to limit and pre-tighten, making it easier to connect the bolts 8 in the subsequent assembly.

[0017] refer to Figure 2 The central spring 3 is disposed in the mounting hole 101 of the magnetic yoke 1 through the spring sleeve 9. The spring sleeve 9 is interference-fitted with the mounting hole 101. One end of the spring sleeve 9 and the mounting hole 101 are integrally connected with a limit ring 109 to prevent the central spring 3 from detaching from the spring sleeve 9 and to prevent the spring sleeve 9 from detaching from the mounting hole 101.

[0018] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Based on the present utility model and the above description, relevant personnel can make various changes and modifications without departing from the technical concept of the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An easily assembled non-excitation clutch, characterized in that: It includes a magnetic yoke (1), a coil (2), a central spring (3), an armature disk (4), a spline shaft (5), a friction disk (6), and a mounting plate (7); The inner side of the magnetic yoke (1) is provided with a mounting hole (101), an annular mounting groove (102) and a stepped platform (103) from the center outwards, and the coil (2) is disposed in the annular mounting groove (102); The central spring (3) is disposed in the mounting hole (101) of the magnetic yoke (1), and one end of the central spring (3) is connected to the armature disk (4). Multiple guide notches (401) are evenly distributed on the outer edge of the armature disk (4). A spline shaft (5) is disposed inside the central spring (3), and one end of the spline shaft (5) passes through the central hole of the armature disk (4) and is connected to the friction disk (6). The mounting plate (7) has a convex ring (701) integrally connected to its end face. The convex ring (701) has multiple protrusions (702) integrally connected to it. The protrusions (702) correspond one-to-one with the guide notches (401) of the armature disk (4). The protrusions (702) have threaded through holes. The stepped platform (103) of the magnetic yoke (1) also has corresponding threaded through holes. When the mounting plate (7) and the magnetic yoke (1) are assembled, the friction disk (6) is located inside the convex ring (701) of the mounting plate (7), the protrusion (702) of the mounting plate (7) is placed in the guide notch (401) corresponding to the armature disk (4), the end face of the protrusion (702) is in contact with the top surface of the stepped platform (103) of the magnetic yoke (1), and bolts (8) are simultaneously screwed into the threaded through hole of the magnetic yoke (1) and the threaded through hole corresponding to the mounting plate (7).

2. The easily assembled non-excitation clutch according to claim 1, characterized in that: The inner side of the magnetic yoke (1) is also provided with an annular groove (104), which is located above the stepped platform (103). The outer side of the convex ring (701) of the mounting plate (7) is integrally connected with a corresponding convex strip (703). When the mounting plate (7) and the magnetic yoke (1) are assembled, the convex strip (703) of the mounting plate (7) is located in the annular groove (104) of the magnetic yoke (1).

3. The easily assembled non-excitation clutch according to claim 1, characterized in that: The central spring (3) is installed in the mounting hole (101) of the magnetic yoke (1) through the spring sleeve (9). The spring sleeve (9) is press-fitted with the mounting hole (101). One end of the spring sleeve (9) and the mounting hole (101) are integrally connected with a limit ring (109).

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