阅读说明：本技术 磁力复合膜片联轴器 (Magnetic composite diaphragm coupling ) 是由 杨路 臧祖玄 臧蕴棋 王国华 焦丽 徐毅 王跃林 周万民 夏阳 王若冰 王磊 于 2021-10-14 设计创作，主要内容包括：本发明磁力复合膜片联轴器,包括输入端半轴节、中间节、输出端半轴节、膜片组件,在输入端和输出端半轴节的法兰端盘上分别固定连接设有L形外套,在该L形外套的内环面固定安装有外磁钢块,在中间节的左端和右端法兰端盘的外圆面上固定安装有内磁钢块,所述的外磁钢块与所述的内磁钢块对应配合,中间节的左端和右端法兰端盘上的驱动螺栓孔为圆弧形槽孔。这样在联轴器工作传动时,中间节与输入和输出端半轴节会进生一定的相对转动位移,所述内外磁钢块产生相互磁力吸引作用传递转矩,这样使得联轴器实现弹性软启动,并对输入、输出轴的转动振动、加减速变速冲击起到弹性缓冲作用,膜片联轴器运转平稳。(The invention relates to a magnetic force composite diaphragm coupling, which comprises an input end half shaft joint, a middle joint, an output end half shaft joint and a diaphragm assembly, wherein L-shaped outer sleeves are respectively and fixedly connected to flange end plates of the input end half shaft joint and the output end half shaft joint, outer magnetic steel blocks are fixedly arranged on inner annular surfaces of the L-shaped outer sleeves, inner magnetic steel blocks are fixedly arranged on outer circular surfaces of left end flange end plates and right end flange end plates of the middle joint, the outer magnetic steel blocks are correspondingly matched with the inner magnetic steel blocks, and driving bolt holes on the left end flange end plates and the right end flange end plates of the middle joint are circular arc slotted holes. Therefore, when the coupler works and transmits, the middle section and the input and output end half shaft sections can generate certain relative rotation displacement, the inner magnetic steel block and the outer magnetic steel block generate mutual magnetic attraction to act on transmission torque, the coupler realizes elastic soft start, elastic buffering effect is achieved on rotation vibration and acceleration and deceleration speed change impact of the input shaft and the output shaft, and the diaphragm coupler operates stably.)

1. The magnetic composite diaphragm coupling comprises an input end half shaft joint, a middle joint, an output end half shaft joint, a diaphragm assembly, a compensation cushion block, a driving bolt and a nut; the flange end plate of the input end half-shaft joint and the flange end plate of the middle joint and the flange end plate of the output end half-shaft joint and the flange end plate of the middle joint are respectively connected by a membrane component, a compensation cushion block, a driving bolt and a nut in a matching way, and the device is characterized in that:

the flange end disc of the input end half coupling and the flange end disc of the output end half coupling are respectively fixedly connected with an L-shaped outer sleeve through screws, the inner annular surface of the L-shaped outer sleeve is provided with a circular groove, and an outer magnetic steel block is fixedly arranged in the circular groove;

the outer circular surfaces of the left end flange end disc of the middle section and the right end flange end disc of the middle section are provided with circular ring grooves, inner magnetic steel blocks are fixedly arranged in the circular ring grooves, and the outer magnetic steel blocks are correspondingly matched with the inner magnetic steel blocks;

the driving bolt holes on the left end flange end disc of the middle section and the right end flange end disc of the middle section are circular arc-shaped slotted holes.

Technical Field

The invention relates to a coupling.

Technical Field

The diaphragm coupling transmits torque by shearing force of the bolt. The stressed diameter of each bolt is fixed, so that the transmission torque of the coupling with the same specification is limited. Meanwhile, due to factors such as starting, installation and use conditions and the like, the diaphragm coupler is overloaded and bears impact force, and the rated torque of the unit is greater than that of the coupler, so that unstable starting, and the conditions of diaphragm tearing and bolt breakage are easily caused.

Disclosure of Invention

The invention aims to overcome the defects of the diaphragm coupling in the prior art, and provides a magnetic composite diaphragm coupling which is good in starting stability, small in transmission vibration, strong in overload damage resistance and large in transmission torque.

The invention relates to a magnetic composite diaphragm coupling, which comprises an input end half shaft joint, a middle joint, an output end half shaft joint, a diaphragm assembly, a compensation cushion block, a driving bolt and a nut; the flange end plate of the input end half-shaft joint and the flange end plate of the middle joint and the flange end plate of the output end half-shaft joint and the flange end plate of the middle joint are respectively connected by a membrane component, a compensation cushion block, a driving bolt and a nut in a matching way, and the device is characterized in that:

the flange end disc of the input end half coupling and the flange end disc of the output end half coupling are respectively fixedly connected with an L-shaped outer sleeve through screws, the inner annular surface of the L-shaped outer sleeve is provided with a circular groove, and an outer magnetic steel block is fixedly arranged in the circular groove;

the outer circular surfaces of the left end flange end disc of the middle section and the right end flange end disc of the middle section are provided with circular ring grooves, inner magnetic steel blocks are fixedly arranged in the circular ring grooves, and the outer magnetic steel blocks are correspondingly matched with the inner magnetic steel blocks;

the driving bolt holes on the left end flange end disc of the middle section and the right end flange end disc of the middle section are circular arc-shaped slotted holes.

When the flexible starting coupling works, the driving bolt holes in the left end flange end disc of the middle joint and the right end flange end disc of the middle joint are arc-shaped groove holes, so that when the coupling is started to work and transmit, the middle joint, the input end half shaft joint and the output end half shaft joint can generate certain relative rotation displacement, and the outer magnetic steel blocks on the L-shaped outer sleeves on the input end half shaft joint and the output end half shaft joint and the inner magnetic steel blocks on the flange of the middle joint generate mutual magnetic attraction to transmit torque, so that the flexible starting of the coupling is realized, and the flexible starting coupling plays an elastic buffering role in the running of the rotation vibration of an input shaft and an output shaft and the speed change impact of acceleration and deceleration; meanwhile, the transmission torque can be improved through magnetic transmission, the sizes of the driving bolt and the diaphragm can be relatively reduced, or the transmission torque is improved, so that the stable operation of the diaphragm coupling is facilitated; when the mutual attraction of the outer magnetic steel block and the inner magnetic steel block reaches the maximum, the driving bolt is gradually stressed, and when the unit is stable and fully loaded, the driving bolt and the magnetic transmission simultaneously transmit torque.

The invention has simple structure and convenient manufacture, can reduce the instantaneous shearing force borne by the driving bolt during starting so as to effectively prevent the driving bolt from fatigue fracture, and the L-shaped outer sleeve can also effectively play a role of protecting the membrane component so as to prevent the membrane component from tearing and flying out in use, thereby being particularly suitable for being used under the environment with the change of working conditions or under a variable frequency motor.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a schematic structural diagram of an embodiment of the intermediate link 3.

Fig. 4 is a left side view of fig. 3.

Fig. 5 is a right side view of fig. 3.

Fig. 6 is a schematic structural view of an embodiment of the L-shaped casing 9.

Fig. 7 is a left side view of fig. 6.

Detailed Description

The invention relates to a magnetic composite diaphragm coupling which comprises an input end half shaft joint 1, a middle joint 3, an output end half shaft joint 2, a diaphragm assembly 4, a compensating cushion block 5, a driving bolt 6 and a nut 7; the flange end plate of the input end half shaft joint 1 is matched and connected with the flange end plate of the middle joint 3, and the flange end plate of the output end half shaft joint 2 is matched and connected with the flange end plate of the middle joint 3 through a diaphragm assembly 4, a compensating cushion block 5, a driving bolt 6 and a nut 7; the flange end plate 11 of the input end half coupling 1 and the flange end plate 21 of the output end half coupling 2 are respectively fixedly connected with an L-shaped outer sleeve 9 through screws, the inner ring surface of the L-shaped outer sleeve 9 is provided with a circular ring groove, and an outer magnetic steel block 92 is fixedly arranged in the circular ring groove; the outer circular surfaces of the left end flange end disc 31a of the middle section 3 and the right end flange end disc 31b of the middle section 3 are provided with circular ring grooves, and inner magnetic steel blocks 33 are fixedly arranged in the circular ring grooves; the external magnetic steel block 92 is correspondingly matched with the internal magnetic steel block 33; the drive bolt holes 35 on the left end flange end disc 31a of the middle section 3 and the right end flange end disc 31b of the middle section 3 are circular arc-shaped groove holes.