SU383921A1 - ELECTROMAGNETIC FRICTION CLUTCH BRAKE - Google Patents

Description

one

The invention relates to the field of engineering.

The electromagnetic friction clutch-brake is known, which contains a driving coupling half with a friction disk, a driven coupling half with an integrated electromagnet, an axial brake disk mounted on a frame, a spring-loaded brake disk and a pressure coupling of the coupling connected to each other and the driven coupling half by means of fingers.

The aim of the invention is to provide a smooth start and reduce the power consumption of the electromagnet.

This is achieved due to the fact that in the proposed coupling the thrust disk is installed with the possibility of limited axial movement on the bed bases, at the ends of which spring-loaded inertial weights are fixed, and springs acting on the pressure disk in the direction coinciding with the direction of the electromagnetic forces are mounted on the fingers .

FIG. Figure 1 shows the proposed electromagnetic friction clutch-brake in the section; in fig. 2 is a clutch force diagram.

The friction electromagnet clutch-brake consists of the following parts. In the driven half coupling / is located the roller 2,

electrically connected to the contact device 3. On the outer part of the driven half coupling 1, the fingers are fixed with 4 nuts 5. There are two discs 6 and 7 on the fingers 4.

The disk 6 is the slab of the coupling half and at the same time the disk and can be moved by the value of t. The disk 7 is the clutch pressure plate, it has measuring holes 8 and is pressed against the disk 6 by springs 9.

 9 are secured to the fingers with 4 washers 10 and nuts // and are adjusted to the desired effort.

On the leading coupling half 12, a friction lining 13 is fixed, engaging with

disk 7 when starting the clutch. The prulins 14 of the disk 6 are pressed to the disk 7 and to the stop disk) 15. The disk 6 carries the friction lining 16.

The thrust disk / J is movably mounted on the frame 17 by means of tongs 18, at the ends of which inertial weights 19 are fixed, spring-loaded springs 20.

The weights 19 provide the required braking performance of the driven half coupling and the node connected to it.

Clutch-brake works as follows.

When the coil 2 is turned on, the measles under the action of an electromagnetic field is attracted to the driven coupling half / with the power of the RP.

Since, when the coil is turned on, the RE, RE and PZ forces are directed against the force PI (from the springs 14), when moving the core by an amount ta the disk 5 abuts against the frame 17 (which corresponds to points 1 and 2 of the diagram), where the transition process occurs, characterized by By changing the force of the springs 14, 9 and 20. As the disk moves further by 2, the springs / 4 and 9 act and when the disk 7 stops in the friction surface of the drive coupling half, a second transient occurs, which is characterized by a change in the force on the core. At the same time, the driven half coupling / e using the disk 7 engages with the driving coupling half 12, and the disk 6 is attracted to the coupling half / finally.

To stop and brake the leading half-coupling, turn off the roller 2. Since the spring 14 has been compressed, the disk 6 begins to move to the right. When the spring 14 is deployed to f ti-tz, the core opens with the coupling half /, stops the core in the disk 7 and opens the disk 7 with the surface of the driving coupling half.

The coupling half 12 is disconnected from the final slave (points 3 of the diagram), and disk 6 (also known as measles) continues to move with disk 7, springs 9 to a value (points 2 of the diagram correspond to the adhesion of the surface of the lining 16 with the stop disk 15), and driven half coupling 1 slow down

As discs 6 and 7 move with great speed, measles is pressed against the stop disc 15 with considerable force. This is provided by the action of inertial weights 19 and springs 20, which also play the role of shock absorbers.

Subject invention

Claims (2)

1. Electromagnetic friction muftatormoz, containing a leading coupling half with a friction disk, driven half coupling with integrated electromagnet, fixed on the frame, a thrust disk brake, a spring-loaded brake disk and a clutch pressure disk connected to each other and to the driven coupling half by means of fingers, characterized in that, in order to ensure smooth start-up, the thrust disk is fixed to the frame with the possibility of limited axial movement using spaced it has movable pins, spring loaded cargoes planted on them. 2. Clutch-brake according to claim 1, characterized in that, in order to reduce power consumption, it is equipped with a set of springs mounted on the fingers and acting on the pressure disc in the direction coinciding with direction of action of electromagnetic forces. 12 mm