一种电磁离合器传动盘结构以及电磁离合器

Abstract

本实用新型公开了一种电磁离合器传动盘结构以及电磁离合器，属于离合器技术领域，所述电磁离合器包括所述传动盘结构，所述传动盘结构包括传动盘以及设置在传动盘上的硬质结构，所述硬质结构的表面或者所述表面上的层结构提供传动盘结构上的对偶面，所述对偶面作为传动盘结构上用于实现传动盘与传动盘结合以传递转矩的接触面，所述硬质结构为以下结构中的任意一种或几种：设置在传动盘端面上的层结构；固定在传动盘外缘侧面的环形结构；固定在传动盘外缘侧面的块状结构；所述硬质结构为马氏体不锈钢或者为面心立方结构的钴基合金。本方案可有效优化电磁离合器的温度适应能力，提升电磁离合器传动盘分离可靠性。

Claims

1. An electromagnetic clutch drive plate structure comprising a drive plate and a hard structure arranged on the drive plate, the surface of the hard structure or a layer structure on the surface providing a counter surface (19) on the drive plate structure, which counter surface (19) functions as a contact surface on the drive plate structure for the implementation of the drive plate in combination with the drive plate for the transmission of torque, characterized in that The rigid structure is any one or more of the following structures: a layered structure disposed on the end face of the transmission disk; an annular structure fixed to the outer edge side of the transmission disk; a block-shaped structure fixed to the outer edge side of the transmission disk. The hard structure is either martensitic stainless steel or a cobalt-based alloy with a face-centered cubic structure.

2. An electromagnetic clutch drive disc structure according to claim 1, wherein The rigid structure is provided with teeth or grooves for achieving the engagement.

3. The electromagnetic clutch drive disk structure of claim 1, wherein, The transmission disk structure includes a first transmission disk (4), which serves as a transmission disk fixed in position relative to the coil assembly (2) on the electromagnetic clutch. The first transmission disk (4) is provided with a plurality of waist-shaped holes (41), which are arranged at intervals in the circumferential direction of the first transmission disk (4) and are evenly distributed in a ring relative to the axis of the first transmission disk (4).

4. An electromagnetic clutch drive disc structure according to claim 3, wherein The hard structure on the first transmission disk (4) is a layer structure welded to the outer edge of the end face of the first transmission disk (4) or an annular structure welded to the outer side of the first transmission disk (4); The layer structure is a cobalt-based alloy overlay layer, and the annular structure is a martensitic stainless steel ring.

5. The electromagnetic clutch drive disk structure of claim 1, wherein The transmission disk structure includes a second transmission disk (5), which serves as a transmission disk whose position relative to the coil assembly (2) is variable when the electromagnetic clutch is engaged. The hard structure on the second transmission disk (5) is a layer structure welded to the outer edge of the end face of the second transmission disk (5) or an annular structure welded to the outer side of the second transmission disk (5); The layer structure is a cobalt-based alloy overlay layer, and the annular structure is a martensitic stainless steel ring.

6. An electromagnetic clutch drive disc structure according to claim 1, wherein The transmission disk includes a first transmission disk (4) and a second transmission disk (5). Of the two, the first transmission disk (4) and the second transmission disk (5) serve as the driving transmission disk and the other serves as the driven transmission disk. In the combined state, the two form a toothed transmission relationship through the dual surfaces (19) on their respective hard structures. Of the two, one has a hard structure of martensitic stainless steel, and the other has a hard structure of a cobalt-based alloy with a face-centered cubic structure.

7. An electromagnetic clutch drive disc structure according to claim 6, wherein The dual surfaces (19) of the first transmission disc (4) and the second transmission disc (5) are configured such that the engagement is achieved by meshing of teeth and grooves; And combined as follows: through the mutual support of teeth and grooves on the axis of the transmission disk structure, the support is that there is an air gap between the first transmission disk (4) and the second transmission disk (5).

8. An electromagnetic clutch drive plate structure according to claim 7, wherein In the engaged state, the side surface of the tooth contacts the side surface line of the tooth groove.

9. An electromagnetic clutch comprising a driving plate structure for realizing the engagement and disengagement of a driving portion and a driven portion, characterized by, The transmission disk structure is the transmission disk structure described in any one of claims 1 to 8.

10. An electromagnetic clutch according to claim 9, wherein It also includes a coil holder (1), a coil assembly (2), a first bearing assembly (3), a second bearing assembly (15), a diaphragm spring (6), a drive shaft (14), a transmission structure, and a return spring (10); The coil assembly (2) is fixed on the coil seat (1). The coil seat (1) is provided with a fixing structure that fixes the coil seat (1) on the torque transmission chain. The coil seat (1) is rotatably connected to the transmission shaft (14) through the first bearing assembly (3). The transmission disk includes a first transmission disk (4) and a second transmission disk (5). The position of the first transmission disk (4) on the axis of the transmission shaft (14) is fixed by: the end constraint provided by the first bearing assembly (3) and the end constraint provided by the inner ring sleeved on the transmission shaft (14). The first transmission disk (4) and the transmission shaft (14) are connected by a transmission key. The transmission structure is connected to the second transmission disk (5) via a diaphragm spring (6). The transmission structure is rotatably mounted on the transmission shaft (14) via a second bearing assembly (15). The connection point of the transmission structure on the diaphragm spring (6) and the connection point of the second transmission disk (5) on the diaphragm spring (6) are located at different positions on the diaphragm spring (6). The reset spring (10) is configured such that its two ends act on the second transmission disk (5) and the transmission structure respectively. When the second transmission disk (5) moves away from the transmission structure under the action of the coil assembly (2), the reset spring (10) stores energy.

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