SU434205A1 - SAFETY CLUTCH - Google Patents

Description

one

The invention relates to the field of engineering.

The known safety clutch, containing the driven and driving half coupling, closing them elements, for example balls interacting with the shutdown mechanism, the spring-loaded finger of which is displaced along the axis when triggered, contacts the end switch.

The aim of the invention is to provide an alarm signaling the onset of an increase in torque, which occurs, for example, when the tool is blunt or the lubricant is stopped.

This is achieved by the fact that in the proposed clutch the shut-off mechanism is provided with a signaling device, made in the form of a protrusion on a spring-loaded finger and mounted outside the sensor clutch, which are in contact with each other until the moment of operation.

The drawing shows the proposed coupling in section with a pre-signaling and shutdown device.

On the driven coupling half, there is a casing 1 on which the radial ball bearing 2 is mounted and the sleeve 3 is mounted on the outer ring mounted on the driven coupling half. The spring-loaded pin 4 mounted in the holes of the bracket 5 has protrusions 6 and 7 in contact with the sensor 8 and the limit switch 9 The tension adjustment of the springs 10 acting on the ball 11 is adjusted by the nut 12.

As the magnitude of the torque increases, the balls 11 exit the holes and act on the casing 1 and the sleeve 3 fixed on it, which moves the pin 4 along the axis of the coupling. In this case, the protrusion 6 is in contact with the sensor 8, which sends a signal to the console about the beginning of an increase in torque. When the torque reaches the value Exceeding the calculated, the ball 11 completely leaves the hole and causes

move the finger further until it comes into contact with the limit switch 9, which sends a signal to turn off the motor.

Subject invention

A safety coupling containing a master and a driven half coupling, their closing elements, for example balls interacting with the mechanism, disconnections, having a spring-loaded pin mounted with the possibility of axial movement and contacting when triggered with a limit switch, characterized in that

the purpose of providing an alarm of the beginning

increasing torque, the shutdown mechanism is equipped with a signaling device, made in the form of a protrusion on

4. - spring-loaded finger and a sensor installed outside the clutch, which are in contact with each other before the response time.