SU979907A1 - Device for measuring torque - Google Patents

Description

(54) DEVICE FOR MEASUREMENT

one

The invention relates to a measurement technique and can be used to measure the torque and the proportional tension of individual wires on the torsion shafts of the channelers and armored cars.

A device for measuring the torque of rotation is known, comprising gear disks rigidly connected to the ends of the base portion of the elastic shaft, pulse shapers, a key and a measuring device 11.

However, this device does not allow separate measurement of the tension of the wires on the rope and armored cars.

The closest in technical dryness and the achieved result to the invention is a device for measuring the torque, which contains ferromagnetic toothed measuring discs, sensors for detecting signals from measuring discs and measuring circuit 2.

DETAILS

A disadvantage of the known device is also the inability to measure the tension of individual wires on the rope and armored carriages.

The purpose of the invention is to provide a separate measurement of the maximum torque and proportional tension from the "free wires" on the torsion shafts of rope and dimple machines.

This goal is achieved by the fact that

10 in the device zue of one of the disks is made with the possibility of separate movement relative to the disk in the plane of rotation of the latter.

15

On the drawing there is a diagram of the proposed device.

The device for measuring the torque of rotation comprises a toothed ferromagnetic disk 1, the teeth of which are made,

Claims (2)

20 can be moved in the plane of rotation of the disk under the action of the tension force of the wires, and a serrated ferromagnetic disk 2 having the same number of teeth with disk 1, evenly spaced around the circumference. The teeth of discs 1 and 2, equally spaced on the circumference, form a pair to measure the tension of one of the wires. The disks 1 and 2 are mounted on the shaft 3 of the 1 x sanate machine. Inductive sensors 4 and 5 are connected to the input of the respective. shapers b and 7 pulses, the outputs of which are connected to the inputs of the key 8. The output of the key 8 is connected via a switch 9 of pulses and a pulse width meter 10 to the input of the multiplication unit 11, the meter 12 is connected to another input, and the meter input The 12th frequency of rotation is connected via the driver 7 to the induction sensor 5. An indicator 13 is connected to the output of the multiplication unit 11. The device operates as follows. During the rotation of the shaft 3 of the rope machine in inductive sensors 4 and 5, pulses are generated from each tooth of the measuring disks 1 and 2, respectively. The disks -1 and 2 are installed in such a way that, in the absence of the influence of the wires, the teeth of the disks 1 and 2 will appear. pulses in sensors 4 and 5 at the same time, i.e. the time shift between the pulses in each measuring pair is equal to O. Under the force of the wire, the teeth of the disk 1 move in the plane of rotation of the disk, and the teeth of the measuring disk 2 do not change their position, which leads to the appearance of a time shift between the pulses in each measuring pair, proportional to the tension of the wire. The pulses from the sensor sensors 4 and 5 pass through the formers 6 and 7 of the pulses and are fed from to key 8, one by one, by opening and closing it. At the output of the key 8, a sequence of pulses is formed, and the duration of each of the pulses is proportional to the time shift between the pulses in a given measuring pair. These pulses are fed to a pulse commutator 9, which separates any of the predetermined measuring pairs from the shaals, the signal from one to 7 from the measuring pairs is assigned as a reference point. The impulse from the controlled measuring pair from the output of the switch 9 is fed to the meter 10 duration. The pulse duration measured in this way is proportional to the tension force of the controlled wire. However, when the rotational speed of the shaft 3 of the rope machine is changed, the pulse duration varies with constant tension on the wire. In order for the indicator 13 not to depend on the frequency of rotation of the shaft 3, it is connected to the output of the multiplication unit 11, to one of the inputs. The impulses of which are supplied by the pulse duration meter 10, and the other input are a correction signal about the frequency of rotation of the shaft 3, coming from the inductive sensor 5 through the pulse shaper 7 and the meter 12 (Rotational frequencies. Use in the device of the measuring disk whose teeth can be split movement in the plane of rotation of the disk, will allow the measurement of the tension of the individual wires on rope-making and armored vehicles. Shaft-ferromagnetic measuring disks, sensors for reading signals from measuring disks and measuring circuit, which are rigidly connected to the shaft, are characterized in that, in order to ensure separate measurement of the torque and proportional tension of individual wires on the torsion shafts of cable-making and armored cars, proportional to it In it, the teeth of one of the disks are made with the possibility of separate movement relative to the disk in the plane of rotation of the latter. Sources of information taken into account in the examination 1, Ageikin DI Sensors of control and regulation. M ,, Mashinostroenie, 1965. with. 344. 2. One of C, S. and others. Means for measuring torque. M., Mechanical Engineering, 1977, p. 61-62 (prototype).