Speed sensor and torque

 

(57) Abstract:

The inventive sensor includes a mechanical unit, which consists of a measuring element, drive and driven shafts, two photosensors, two Svetozarov, and the electrical node, consisting of a comparator unit comparing and indicator. The measuring element is a cylinder, the material stiffness is determined in the range of measured points rigidly fixed to the master and slave shafts by means of the fastening cylinder with transverse openings through which the light of Svetozarov gets to photosensors located opposite each other and connected through a threshold blocks of the electronic component with the frequency divider, and a comparator consisting of two blocks prohibit sovpadeniya, two triggers, the element of coincidence elements "OR", "AND". The output of the comparator element And through the first input of the first electronic key Comparer connected to the first input of the counter moment on the display unit, the second input is connected to the second input of the frequency counter rotation and element definitions of the sign and to the output of the frequency divider, the output of the generator is the standard of pulses is connected to a second input of the first and second e the cha is connected to the first input of the frequency counter rotation, the first input element of the definition of the sign is connected to the output of the second trigger comparator, the first input connected to the output of the first threshold unit, the output of which is connected to the input of the first block of the prohibition of the match, the output of which is connected to the first trigger, a second reset input of which is connected to the output of the second threshold block, which is also associated with the first input of the second block of the prohibition of the match, the output of which is connected to the first input of the second trigger, the second reset input which is connected to the output of the first threshold unit, the outputs of the first and second flip-flops through the element "OR" connected to "And", a second input connected to the output element of coincidence, and the output of the second threshold unit is connected to the input of the frequency divider. 2 Il.

The unit refers to the measurement technique and is designed to control the speed and torque in a mechanical part of the actuator devices.

A device for the direct measurement of torque in a swivel that occur when the moving distance of the drive mechanism [1] contains the master node, the slave node, a device for installation of these units for a total wauu the master node with remote drive mechanism; the locking device, in accordance with the moving distance of the drive mechanism rotates the slave node relative to the master node, at least one force sensor, mounted in the locking device and occupying such a position, which provides transmission of torque forces with measuring devices of this effort.

In this device, the measurement time is transmitted based on the offset of the slave node relative to the master. General characteristics with the invention consist in the presence of the master and the slave node.

However, the device has the following disadvantages: measurement effort is made in the static mode, the device has sufficient complexity, less compact. The inability to achieve a technical result due to the complexity of the measurement of the moment, having made errors in the device's elements.

Known technical solutions closest to the technical nature of the claimed object is a device for measuring torque [2] the Invention relates to measuring technique and can be used to determine the torque on the propeller shaft (measure is same with the help of sleeves. Bushings are fixed using pruinosity rings. On the hull before the drives are installed LEDs for disk photointerrupter. In addition, in the electric circuit has a phase comparator, an amplifier, a measuring device and indicator. When the shaft of the photosensitive generate signals proportional to the rotation frequency, shifted in phase by the angle of twist. The twisting angle is generated by the phase comparator and the measuring device is determined torque. Common features with the proposed invention is the presence of Svetozarov, comparator, comparator and display.

The disadvantage of the prototype is the following: measurement of the torque on the propeller shaft possible in the range of high pressures and limited on one side by the elastic deformation (small maximum displacement angle between the first and second pulse) on the other hand the ability to read photoemulsion (the steepness of the fronts). In the electronic device is no indication of the sign, and the possibility of further processing of the data frequency and torque control program.

The inability to achieve a technical result of the claimed invention at analfree).

The technical result is to increase the measuring range of the moment.

The technical result is achieved by the speed sensor and torque, containing mechanical unit consisting of a measuring element and output shafts, two photosensors and Svetozarov and electric site, consisting of a comparator unit comparing and indicator characterized in that mechanical site entered the measuring element represents the cylinder, the stiffness of the material and is defined by the range of measured points rigidly fixed to the master and slave shafts by means of the fastening cylinder with transverse holes, through which the light of Svetozarov gets to photosensors located opposite each other and connected through a threshold blocks of the electronic component with the frequency divider, and a comparator consisting of two blocks of the prohibition of matches, two triggers communication element of coincidence and the frequency counter, the comparator output through the element and the first electronic key Comparer connected to the first input of the counter moment on the display unit, the second input is connected to the second input of the frequency counter rotation and element definitions of the sign and to the electronic key, the first input of the latter is connected to the output of the frequency divider, the output of an electronic key associated with the first input of the frequency counter rotation of the first input element of the definition of the sign is connected to the output of the second trigger comparator, the first input connected to the output of the first threshold unit, the output of which is connected to the input of the first block of the prohibition of the match, the output of which is connected to the first trigger, a second reset input of which is connected to the output of the second threshold block, which is also associated with the first input of the second block of the prohibition of the match, the output of which is connected to the first input of the trigger, a second reset input which is connected to the output of the first threshold device, the outputs of the first and second flip-flops through the element or connected with the resolution, a second input connected to the output element of coincidence, the output of the second threshold unit is connected to the input of the frequency divider.

The presence of distinctive features determines the compliance of the proposed technical solution the criterion of "novelty". The proposed solution meets the criterion of "inventive step", because not found solutions with features similar to the features of the proposed te achieve a technical result (confirmed) the following theoretical conclusions: according to Hooke's law, the physical body have a linear plot in the region of elastic deformation. In this case, the time given to the master node, is compensated by the force caused by the elastic deformation of the curl. The angle between the master and the slave nodes is inversely proportional to the stiffness of the measuring element, also depends on long measuring element and twisting moment. Machining accuracy depends on the fill factor of the pulse interval difference fronts between pulses of the first and second photosensors in time and the value of the angle of deformation.

The invention is illustrated the accompanying drawings, Fig. 1 shows the General scheme of the sensor frequency and torque in Fig. 2 revealed the electronic unit of the sensor frequency and torque.

In Fig. 1 depicts a sensor, which consists of the electronic component 1 and the mechanical node 2 having the measuring element 3, which by means of brackets with fasteners 4 are rigidly attached at both ends to the mounting cylinder 6. In mounting the cylinders made holes 5 for the passage of light through svetozarskii 7, 8 to the photosensors 9, 10 which are rigidly mounted on the stationary housing 11. In turn, the mounting cylinder 6 fixed on wudaokou 14, 15, a comparator 16, a frequency divider 17, block 18 comparison, the display unit 19 and the generator of the standard pulses 20. Photosensors 9, 10 through the threshold blocks 14, 15 are connected with the item match 21 of the comparator 16 and to the input of the frequency divider 17; the inputs of the element matches 21 are connected to the inputs of blocks prohibition match 22 and 23, the outputs of which are connected with the inputs of the trigger 24, 25, the reset inputs of which are connected to the inputs of blocks prohibition match 23, 22, respectively. The outputs of the trigger 24, 25 are connected with the inputs of the element or 26, the output of which is connected to the second inputs of blocks prohibition match 22, 23. The output of the element matches 21 is connected with the input element and 27, a second input connected to the output element or 26. One output of the comparator 16 through the element and 27 is connected to the input unit of comparison 18, the second output of the comparator 16 is connected to the input of the display unit 19. The Comparer 18 consists of two electronic keys 28, 29, the inputs of which are connected with the generator output a standard pulse 20. The second output of the electronic switch 29 is connected to the output of the frequency divider 17, consisting of the third unit of the prohibition of matches 30 and the delay element 31. The output of the frequency divider 17 is connected to the inputs of the indication unit 19 consisting of 22 matches, 23, 30 can be represented by a modulo two. Electronic switches 28, 29 and the element matches 21 can be represented as elements "and". The counters 32, 33 can be made of the device serial account with parallel output binary code. The blocks 31, 34 can be made in the form of D flip-flops.

The device operates as follows: when the forward or reverse rotation of the drive and driven shafts 13, 12 light from Svetozarov 7, 8 in the point of intersection of the lines of light holes 5 made in the mounting cylinder 6 is formed by a pulse in the circuit of the photosensor 9, 10, then through the threshold device 14, 15 is supplied to the comparator 16, and the Comparer 18, which converts the two input pulse into a sequence of fixed time pulse generator standard pulse 20, the number of which is counted by a counter point 32, the counter is reset when the full turnover of the shaft 13 and is removed from the frequency divider 17. The shaft speed is determined by the set of pulses read from unit 18 comparison and counted by the frequency counter rotation 33. The sign of the torque is determined at the output of the trigger 25 and the fixed element of the definition of the sign 34. At the output of the counters 32, 33 is formed parallely to extend the measurement range due to the fact, that the measuring element is fitted directly in the range of measured points, the use of Svetozarov and photosensor excludes the presence of electromagnetic interference, and their location compactness mechanical assemblies. E-the site provides full information about the mechanical movement and anti-jamming with a given accuracy and the possibility of entering information into the computer.

Speed sensor and torque, containing mechanical unit consisting of a measuring element, drive and driven shafts, two photosensors, two Svetozarov, and the electrical node, consisting of a comparator unit comparing and indicator, characterized in that mechanical site entered the measuring element represents the cylinder, the material stiffness is determined in the range of measured points is rigidly attached to the master and slave shafts by means of the fastening cylinder with transverse openings through which the light of Svetozarov gets on the photosensors, located opposite each other and connected through a threshold blocks of the electronic component with the frequency divider, and a comparator consisting of two blocks of the prohibition of matches, two triggers, item sempadan the texts connected to the first input of the counter moment on the display unit, the second input is connected to the second input of the frequency counter rotation and element definitions of the sign and to the output of the frequency divider, the output of the generator is the standard of pulses is connected to a second input of the first and second electronic switches, the first input of the latter is connected to the output of the frequency divider, the output of the second electronic switch is connected to the first input of counter rotation frequency, the first input element of the definition of the sign is connected to the output of the second trigger comparator, the first input connected to the output of the first threshold unit, the output of which is connected to the input of the first block of the prohibition of the match, the output of which is connected to the first trigger, a second reset input of which is connected to the output of the second threshold block, which is also associated with the first input of the second block of the prohibition of the match, the output of which is connected to the first input of the second trigger, the second reset input which is connected to the output of the first threshold unit, the outputs of the first and second flip-flops through the element OR connected to the element And a second input connected to the output element of coincidence, the output of the second threshold unit is connected to the input of the frequency divider.

 

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