阅读说明：本技术 电磁离合器 (Electromagnetic clutch ) 是由 金怀璧 于 2019-09-20 设计创作，主要内容包括：本发明提供一种电磁离合器,包括电磁线圈壳体、电磁线圈、驱动轴、从动机构、离合圆盘、梅花键和弹簧Ⅰ,梅花键活动安装在离合圆盘上并延伸出离合圆盘的端面,从动机构内的转盘通过轴承套设在驱动轴的端部,转盘与离合圆盘之间设有弹簧Ⅰ,圆环转动安装在转盘上,发条设置在转盘内,其中发条的内外圈分别与转盘和圆环固定连接,至少有两个锁止机构设置在转盘上用于限制圆环的位置。通过活动安装在离合圆盘上的梅花键与对接槽对接实现离合,而梅花键与离合圆盘之间设有弹簧,因此能够有效的消除梅花键在未与对接槽对接时梅花键与圆环之间的摩擦,并且利于转盘与圆环之间的柔性连接,能够避免因传动较大扭矩对各部件造成的刚性冲击。(The invention provides an electromagnetic clutch which comprises an electromagnetic coil shell, an electromagnetic coil, a driving shaft, a driven mechanism, a clutch disc, a plum spline and a spring I, wherein the plum spline is movably arranged on the clutch disc and extends out of the end face of the clutch disc, a rotary disc in the driven mechanism is sleeved at the end part of the driving shaft through a bearing, the spring I is arranged between the rotary disc and the clutch disc, a circular ring is rotatably arranged on the rotary disc, a clockwork spring is arranged in the rotary disc, the inner ring and the outer ring of the clockwork spring are respectively and fixedly connected with the rotary disc and the circular ring, and at least two locking mechanisms are arranged on the rotary. The clutch is realized by the butt joint of the plum spline and the butt joint groove which are movably arranged on the clutch disc, and the spring is arranged between the plum spline and the clutch disc, so that the friction between the plum spline and the ring when the plum spline is not in butt joint with the butt joint groove can be effectively eliminated, the flexible connection between the turntable and the ring is facilitated, and the rigid impact on each part caused by the large transmission torque can be avoided.)

1. The utility model provides an electromagnetic clutch, includes solenoid casing (1), solenoid (2), drive shaft (3), follower (4), separation and reunion disc (5), plum blossom key (6) and spring I (7), solenoid (2) set up in solenoid casing (1), separation and reunion disc (5) movable mounting is in solenoid casing (1), be equipped with the key tooth on drive shaft (3) and be equipped with the keyway with the key tooth adaptation on separation and reunion disc (5), drive shaft (3) set up in separation and reunion disc (5) and the key tooth agrees with its characterized in that with the keyway:

the plum spline (6) is movably arranged on the clutch disc (5) and extends out of the end surface of the clutch disc (5);

driven mechanism (4) are including carousel (41), ring (42), clockwork spring (43) and locking mechanism (44), the tip at drive shaft (3) is established through the bearing housing in carousel (41), is equipped with spring I (7) between carousel (41) and separation and reunion disc (5), ring (42) rotate to be installed on carousel (41), clockwork spring (43) set up in carousel (41), wherein the inner and outer lane of clockwork spring (43) respectively with carousel (41) and ring (42) fixed connection, have two at least locking mechanism (44) set up the position that is used for restricting ring (42) on carousel (41).

2. An electromagnetic clutch according to claim 1 wherein: the end part of the plum spline (6) is provided with an installation rod (61), the installation rod (61) on the plum spline (6) is movably matched on the clutch disc (5), and a spring II (62) is arranged between the installation rod (61) and the clutch disc (5).

3. An electromagnetic clutch according to claim 1 wherein: locking mechanism (44) include support frame (441), gag lever post (442) and torsional spring (443), support frame (441) set up the tip at carousel (41), and gag lever post (442) rotates through the round pin axle and installs on support frame (441), wherein gag lever post (442) and ring (42) contact, torsional spring (443) cover is established on the round pin axle of installation gag lever post (442), and the one end of torsional spring (443) extends to in the round pin axle of installation gag lever post (442), the other end extends to in support frame (441).

4. An electromagnetic clutch according to claim 1 wherein: and the circular ring (42) is provided with a butt joint groove (421) and a limiting groove (422) which are matched with the plum spline (6).

5. An electromagnetic clutch according to claim 1 wherein: the plum spline (6) and the butt joint groove (421) on the circular ring (42) are centered.

6. An electromagnetic clutch as claimed in claim 3 wherein: the limiting rod (442) is positioned in a limiting groove (422) on the circular ring (42).

7. An electromagnetic clutch as claimed in claim 3 wherein: the supporting frame (441) is provided with a baffle (4411), and the limiting rod (442) is in contact with the baffle (4411) and used for limiting the rotation angle of the limiting rod (442).

Technical Field

The invention relates to the technical field of clutches, in particular to an electromagnetic clutch.

Background

The publication No. CN103437878B provides a heavy truck torsional damping electromagnetic clutch assembly, in which a fan connection disc is divided into a fan driving connection disc and a fan driven connection disc, and a pressure spring for damping is disposed in a cavity formed between the fan driving connection disc and the fan driven connection disc, so that when the high-speed and low-speed states are switched, the pressure spring is compressed only by pressure and does not fall off from the cavity, thereby improving the stability of the pressure spring during damping.

Disclosure of Invention

The present invention is directed to an electromagnetic clutch to solve the above problems of the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an electromagnetic clutch, includes solenoid casing, solenoid, drive shaft, follower, separation and reunion disc, plum blossom spline and spring I, solenoid sets up in solenoid casing, separation and reunion disc movable mounting is in solenoid casing, be equipped with the key tooth in the drive shaft and be equipped with the keyway with the key tooth adaptation on the separation and reunion disc, the drive shaft setting in the separation and reunion disc and the key tooth agrees with the keyway, wherein:

the plum spline is movably arranged on the clutch disc and extends out of the end surface of the clutch disc;

driven mechanism includes carousel, ring, clockwork spring and locking mechanism, the carousel passes through the bearing housing and establishes the tip at the drive shaft, is equipped with spring I between carousel and the separation and reunion disc, the ring rotates and installs on the carousel, the clockwork spring sets up in the carousel, and wherein the inner and outer lane of clockwork spring respectively with carousel and ring fixed connection, has two at least locking mechanism sets up the position that is used for restricting the ring on the carousel.

Preferably, the tip of plum blossom spline is equipped with the installation pole, the installation pole clearance fit on the plum blossom spline is on the separation and reunion disc, wherein is equipped with spring II between installation pole and the separation and reunion disc.

Preferably, locking mechanism includes support frame, gag lever post and torsional spring, the support frame sets up the tip at the carousel, and the gag lever post rotates through the round pin axle and installs on the support frame, and wherein gag lever post and ring contact, the torsional spring cover is established at the round pin epaxial of installation gag lever post, and the one end of torsional spring extends to in the round pin axle of installation gag lever post, the other end extends to in the support frame.

Preferably, the circular ring is provided with a butt joint groove and a limiting groove which are matched with the quincuncial key.

Preferably, the plum-shaped spline is centered with the butt-joint groove on the circular ring.

Preferably, the limiting rod is arranged in a limiting groove on the circular ring.

Preferably, the supporting frame is provided with a baffle, and the limiting rod is in contact with the baffle and used for limiting the rotation angle of the limiting rod.

Compared with the prior art, the invention has the beneficial effects that:

the clutch disc is movably arranged on the clutch disc, the plum spline is in butt joint with the butt joint groove, the spring is arranged between the plum spline and the clutch disc, friction between the plum spline and the circular ring when the plum spline is not in butt joint with the butt joint groove can be effectively eliminated, flexible connection between the rotary disc and the circular ring is facilitated, rigid impact on each part caused by large transmission torque can be avoided, the clutch disc and the circular ring are still in rigid connection after the rigid impact is eliminated under the action of the locking mechanism, and transmission accuracy can be further guaranteed.

Drawings

FIG. 1 is a three-dimensional schematic of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the overall structure of the present invention;

FIG. 3 is a three-dimensional schematic view of the locking mechanism of the present invention;

FIG. 4 is a cross-sectional view of the locking mechanism of the present invention;

fig. 5 is a schematic view of a portion a of fig. 3.

In the figure: 1, 2 solenoid coils, 3 drive shafts, 4 driven mechanisms, 5 clutch discs, 6 plum splines, 7 springs I, 41 turntables, 42 rings, 43 clockwork springs, 44 locking mechanisms, 421 butting grooves, 422 limiting grooves, 441 support frames, 442 limiting rods, 443 torsion springs, 4411 baffles, 61 mounting rods and 62 springs II.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.