本实 用 新型所要解决的技术问题是提供一种具有较小功率消耗、并具有较长使用寿命的电磁离合器 。 Contents of the utility model : The technical problem to be solved by the utility model is to provide an electromagnetic clutch with less power consumption and longer service life .
组 件，衔铁组件能够沿转 轴 轴线的方向作 轴 向运动；随着衔铁 组 件的轴向运动，从动轮组件能够在与主动轮接合的接合位置和与主动轮分离的分离位置之间运动；弹性件，弹性件向衔铁组件施加作用力；其特征在于，电磁离合器还包括第一转子，第一转子位于电磁铁与衔铁 组 件之间并且包括软磁材料；其中：衔铁组件包括永磁体，衔铁组件能在靠近电磁铁和第一转子的第一位置与远离电磁铁和第一转子的第二位置之间轴向运动，当向电磁铁施加第一方向的第一电流时，通过电磁铁与衔铁组件永磁体之间的吸引力，衔铁组件能够朝向第一位置运动；当衔铁组件运动至第一位置 The utility model discloses an electromagnetic clutch, which includes a rotating shaft having an axis, a driving wheel for receiving external power, a driven wheel assembly mounted on the rotating shaft, and an electromagnet, which can generate a magnetic field when the electromagnet is energized. ; Armature assembly , the armature assembly can move axially in the direction of the axis of the shaft ; with the axial movement of the armature assembly , the driven wheel assembly can be in an engaged position that is engaged with the driving wheel and a separated position that is separated from the driving wheel Elastic movement, the elastic movement exerts a force on the armature assembly; the electromagnetic clutch further includes a first rotor, the first rotor is located between the electromagnet and the armature assembly and includes a soft magnetic material; wherein: the armature assembly includes Permanent magnet, the armature assembly can move axially between a first position close to the electromagnet and the first rotor and a second position far from the electromagnet and the first rotor. When a first current in a first direction is applied to the electromagnet, By the attraction between the electromagnet and the permanent magnet of the armature component, the armature component can move toward the first position; when the armature component moves to the first position The permanent magnet of the armature component can attract each other with the soft magnetic material of the first rotor, so that the armature component can be maintained at a condition where the first current in the first direction is reduced or the first current in the first direction is disconnected. A first position; an elastic member applying a force to the armature component in a direction that moves the armature component to a second position; and when a second current in a second direction opposite to the first direction is applied to the electromagnet, the electromagnet and the armature component The permanent magnets are mutually repulsive, and the armature assembly moves to the second position under the combined action of this repulsive force and the force of the elastic member.
The utility model has the following technical effects: the electromagnetic force requirement for the electromagnet is small, that is, the current requirement is small, the energy is saved, and the service life of the electromagnet is prolonged.
图1是根据本实用新型的电磁离合器的分解透视图；图2是根据本实用新型的电磁离合器在 组 装状态下的横截面图；图3是根据本实用新型的电磁离合器在 组 装状态下的剖切透视图；图4是根据本实用新型的电磁离合器的主动轮的透视图；图5是根据本实用新型的电磁离合器的主动轮的横截面图；图6-7是根据本实 用 新型的电磁离合器的从动轮的透视图；图8是根据本实用新型的电磁离合器的从动轮的横截面图；图9-10是根据本实用新型的电磁离合器的模形块的透视图；图1 1 是根据本实用新型的电磁离合器的模形块的侧视图；图12是根据本实用新型的电磁离合器的衔铁架的侧视图；图13是根据本实用新型的电磁离合器的衔铁架的透视图；图14是是根据本实用新型的电磁离合器的衔铁架的局部透视图。 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an electromagnetic clutch according to the present invention; FIG. 2 is a cross-sectional view of the electromagnetic clutch according to the present invention in an assembled state; and FIG. 3 is a perspective view of the electromagnetic clutch according to the present invention. Cutaway perspective view in the assembled state; Figure 4 is a perspective view of the driving wheel of the electromagnetic clutch according to the present invention; Figure 5 is a cross-sectional view of the driving wheel of the electromagnetic clutch according to the present invention; Figures 6-7 are A perspective view of a driven wheel of an electromagnetic clutch according to the present invention; FIG. 8 is a cross-sectional view of a driven wheel of the electromagnetic clutch according to the present invention; FIGS. 9-10 are Perspective view; FIG. 11 is a side view of a mold block of an electromagnetic clutch according to the present invention; FIG. 12 is a side view of an armature frame of the electromagnetic clutch according to the present invention; FIG. 13 is a side view of the electromagnetic clutch according to the present invention Perspective view of the armature frame; FIG. 14 is a partial perspective view of the armature frame of the electromagnetic clutch according to the present invention.
下面参考附图介绍根据本实用新型的电磁离合器。 DETAILED DESCRIPTION: An electromagnetic clutch according to the present invention will be described below with reference to the drawings. 1 -3 示出了根据本实用新型的电磁离合器。 Figures 1-3 show an electromagnetic clutch according to the present invention .
1 00 主要包括外壳组件、转轴组件、电磁铁 组 件、主动轮组件、从动轮组件。 The electromagnetic clutch 100 according to the present utility model mainly includes a housing component, a rotating shaft component, an electromagnet component , a driving wheel component, and a driven wheel component. 1 、安装 于 壳体1的外侧之一(图1中被示出在左侧)上的叶轮27以及位于两者之间的叶轮 轴 承—密封组件(也称为水封)14。 The housing assembly includes a housing 1 , an impeller 27 mounted on one of the outer sides of the housing 1 (shown on the left in FIG. 1), and an impeller bearing -seal assembly (also referred to as a water seal ) therebetween. ) 14. 1 包括限定孔的圆筒形壁1a以及加强筋 1b ，如图 1 所示。 The housing 1 includes a cylindrical wall 1 a defining a hole and a reinforcing rib 1 b , as shown in FIG. 1 .
The shaft assembly includes a shaft 7a and a bearing 7 mounted on the shaft 7a. 1 4 相接合，如图2所示。 The rotating shaft assembly is installed into the hole of the housing 1 from the side opposite to the impeller 27, so that the bearing 7 as a whole is substantially received in the hole of the housing 1 and one end of the rotating shaft 7a extends outside the housing to be in contact with the impeller 27 and The impeller bearing-seal assembly 14 is engaged as shown in FIG. 2.
A press-fit mounting fixing ring 29 is mounted on the cylindrical wall 1 a of the housing 1 to mount a rear electromagnet assembly (specifically, Tiejia) on the housing 1. 。 The mounting fixing ring 29 has joint portions which are respectively engaged with the respective reinforcing ribs 1b so as to be positioned with respect to the cylindrical wall 1a in the circumferential direction when the electromagnet assembly is mounted on the housing .
于 铁轭24内的电磁线圈32。 The electromagnet assembly includes an iron yoke 24 and an electromagnetic coil 32 positioned inside the iron yoke 24. The electromagnet assembly is mounted on the housing 1 and is installed in a driving wheel (pulley) 2 for receiving external power (for example, power from a car engine or other external power), and the side of the electromagnet assembly abuts the mounting fixing ring 29 The other side is adjacent to the radial member 2b of the driving wheel 2 described later, as shown in Figs. 可 以由软磁性材料形成，电磁线圈32通电后会在铁轭24上产生磁极 。 The iron yoke 24 may be formed of, for example, a soft magnetic material. When the electromagnetic coil 32 is energized, a magnetic pole is generated on the iron yoke 24 .
上 的插头25构成的接插件将汽车的电缆与电磁铁的电磁线圈电连接，以便向电磁铁供电或断电。 A connector composed of a socket 28 for fixing the end of the electromagnetic coil to the iron yoke 24 and a plug 25 for connecting the automobile cable to the socket 28 electrically connects the cable of the automobile with the electromagnetic coil of the electromagnet to The electromagnet is powered on or off.
The driving wheel 2 is a main component of the active part of the electromagnetic clutch, and is preferably a pulley. In other embodiments, the driving wheel may be other components, and the belt wheel may be fixedly connected to the driving wheel. 4 and 5 show the configuration of the driving wheel 2, wherein FIG. 4 is a perspective view showing the driving wheel, and FIG. 5 is a sectional view showing the driving wheel.
4 和5所示，主动轮包括圆筒形壁2a和在轴向一定位置处从圆筒形壁2a径向向内延伸、呈圆环形式的径向部件2 b 。 As shown in FIGS. 4 and 5, the driving wheel includes a cylindrical wall 2 a and a radial member 2 b that extends radially inward from the cylindrical wall 2 a at a certain axial position in the form of a ring . 内 轴向中间位置处。 In the exemplary embodiment, the radial member 2 b is preferably provided integrally with the cylindrical wall 2 a at an axially intermediate position in the driving wheel 2 . 用 新型不限于此，径向部件2b 也可 以根据实际情况设置在主动轮2 内的其它 轴 向位置处。 However, the present invention is not limited to this, and the radial member 2b may be disposed at other axial positions in the driving wheel 2 according to actual conditions .
非 软磁材料时，也 可 以设置一个相对于主动轮固定的、由软磁材料制成的第一转子。 When the radial member 2b of the driving wheel 2 is made of a soft magnetic material, the radial member can be regarded as a first rotor; when the radial member of the driving wheel 2 is a non- soft magnetic material, a A first rotor fixed by a driving wheel and made of a soft magnetic material.
1 -3 所示，电磁铁组件安装在主动轮2内，靠近主动轮2的径向部件(第一转子)。 As shown in Figure 1-3 , the electromagnet assembly is installed in the driving wheel 2 near the radial member (the first rotor) of the driving wheel 2. 4- 5 所示，第一转子2b设置有隔磁槽，该隔磁槽使电磁铁的特定磁场能够穿过第一转子并作用在后面描述的衔铁组件上。 As shown in Figure 4-5 , the first rotor 2b is provided with a magnetic isolation slot, which allows a specific magnetic field of the electromagnet to pass through the first rotor and act on an armature assembly described later. 于 衔铁组件的 轴 向分布磁极的永磁体。 For example, the electromagnet can be made to exhibit the opposite polarity of the radial distribution to correspond to the permanent magnets of the radially distributed magnetic poles of the armature component; or the electromagnet can be presented to have a single polarity in the axial direction to correspond to the axially distributed magnetic poles of the armature component. Permanent magnet.
下 来描述电磁离合器的从动部分 。 The following describes the driven part of the electromagnetic clutch . 。 The driven part mainly includes an armature assembly composed of an armature 19 and an armature frame 31 and a driven wheel assembly composed of a driven wheel 18 and a wedge block 20 . 1 8 的圆筒形主体与主动轮2的径向部件之间。 The driven part is installed on the opposite side of the radial part 2b of the driving wheel 2 from the electromagnet assembly, and is mounted on the cylindrical body of the driven wheel 18 and the driving wheel 2 described later in the radial direction by means of a bearing 33 and a retaining ring 34. Between the radial parts.
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