SU832364A1

SU832364A1 - Device for monitoring moving rope tension

Info

Publication number: SU832364A1
Application number: SU792827585A
Authority: SU
Inventors: Михаил Васильевич Рябухин
Original assignee: Государственный Проектно-Конструк-Торский Институт Рыбопромысловогофлота "Гипрорыбфлот"
Priority date: 1979-10-11
Filing date: 1979-10-11
Publication date: 1981-05-23

Description

Изобретение относится к измерительной технике.The invention relates to measuring equipment.

Известно устройство для измерения натяжения троса, где измерение усилий производят посредством нажатия тросом на ролик, соединённый с контролируемым прибором fl] .A device for measuring the tension of a cable is known, where the force is measured by pressing the cable on a roller connected to a controlled device fl].

Недостатком этого устройства яв ляется то, что прохождение каната по роликам Приводит к дополнительному ° износу как каната, так и роликов. Наиболее близким к изобретению является прибор для определения натяже ния буксирных траловых тросов содержащий направляющие блоки и измеритель ИНедостаток известного устройства заключается в том, что канат гдооходит по кривой, чем вызывает дополнительный износ.The disadvantage of this device is that the passage of the rope through the rollers leads to additional wear of both the rope and the rollers. Closest to the invention is a device for determining the tension of towing trawl cables containing guide blocks and a meter. A disadvantage of the known device is that the rope walks along a curve, which causes additional wear.

Кроме того, устройство не обладает достаточной точностью.In addition, the device does not have sufficient accuracy.

Цель изобретения - снижение износа каната и повышение точности иэме- . рения.The purpose of the invention is to reduce the wear of the rope and improve the accuracy of the eme-. rhenium.

Указанная цель достигается тем, что в устройство введены две подпружиненные щеки, шарнирно соединенные между собой осью, на концах которой шарнирно установлены кронштейны с крайними направляющими блоками, — средний направляющий блок связан с указанной осью шарнирно посредством телескопических подпружиненных штанг, при этом на внутренней стороне каждой щеки смонтированы ролики, а измеритель выполнён в виде индикатора, установленного на одной из щек, и регулировочного винта, смонтированного на другой щеке,, контактирующего через подпружиненный шток с индикатором.This goal is achieved by the fact that two spring-mounted cheeks are introduced into the device, pivotally connected to each other by an axis, at the ends of which brackets are mounted pivotally with the extreme guide blocks, the middle guide block is pivotally connected to the indicated axis by telescopic spring rods, while on the inside of each rollers are mounted on the cheeks, and the meter is made in the form of an indicator mounted on one of the cheeks, and an adjusting screw mounted on the other cheek, contacting through the support stock rod with indicator.

На фиг. 1 изображено предлагаемое устройство, общий вид; на фиг. 2 разрез А-А на фиг. 1; на фиг. 3 устройство, вид в плане..In FIG. 1 shows the proposed device, a General view; in FIG. 2, section AA in FIG. 1; in FIG. 3 device, plan view ..

Устройство основано на принципе измерения толщины каната, диаметр которого меняется в зависимости от величины прилагаемой к канату нагрузки.The device is based on the principle of measuring the thickness of the rope, the diameter of which varies depending on the magnitude of the load applied to the rope.

Устройство содержит щеки 1 и 2, шарнирно соединенные осью 3. На щеках (в их плоскости) с внутренних сторон напротив друг друга на подшипниках 4 и 5 шарнирно установлены ролики 6. Для направления каната 7 между роликами, по краям щек на оси 3, на кронштейнах 8 смонтированы блоки 9. В нижней части щек расположен под832364 держивающий блок 10, смонтированный посредством телескопических'штанг 11 которые шарнирно соединены с кронштейнами 12, установленными на оси 3. Соединение штанг 11 с кронштейнами 12 осуществляется посредством закладных штырей 13. Постоянное контактирование между роликами 6 и канатом 7 обеспечивается пружиной 14 сжатия, установленной между щеками. В щеке 1 установлен регулировочный винт 15, а , в щеке 2 подпружиненный шток 16, нахо- дящийся в соприкосновении с регулиро- вочным винтом 15. Подпружиненный шток 16 соединен с индикатором 17, шкала которого оттарирована на преде лах тех усилий, которые находятся в канате во время работы.The device comprises cheeks 1 and 2 pivotally connected by an axis 3. On the cheeks (in their plane), rollers 6 are pivotally mounted on bearings 4 and 5 from the inner sides of the bearings 4. To guide the rope 7 between the rollers, along the edges of the cheeks on the axis 3, the brackets 8 are mounted blocks 9. In the lower part of the cheeks there is a holding block 10, mounted by means of telescopic bars 11 which are pivotally connected to brackets 12 mounted on the axis 3. The bars 11 are connected to the brackets 12 by means of embedded pins 13. Constant the contact between the rollers 6 and the rope 7 is provided by a compression spring 14 installed between the cheeks. The adjusting screw 15 is installed in the cheek 1, and the spring-loaded rod 16 in contact with the adjustment screw 15 in the cheek 2. The spring-loaded rod 16 is connected to the indicator 17, the scale of which is calibrated within the limits of the forces that are in the rope during work.

Б верхней части устройства имеется шарнирный кронштейн 18.The upper part of the device has a hinged bracket 18.

Устройство работает следующим образом.The device operates as follows.

Устройство для контроля натяжения движущегося каната устанавливается в месте, удобном для измерения усилий в канате и с помощью кронштейна 18 закрепляется, например, на станине лебедки. Штырем 13 разъединяются одна из штанг 11 и поддерживающий оттягивания вниз 1 и 2 в сторону, ливаются блоки,9, в стороны щеки 1 и 2 и отпускаются до соприкосновения роликов 6 с канатом 7. Затем поддерживающий блок 10 возвращается в прежнее положение и телескопическая штанга 11 штырем 13 соединяется с кронштейном 12. После этого, регулировочный винт 15. посредством вращения устанавливается в р соприкосновение с подпружиненным от кронштейнов 12 . блок 10 посредством отвердителя от щек На канат 7 устанавслегка разводятся штоком 16 так, чтобы стрелка индикатора 17 стала в нулевое положение.A device for controlling the tension of a moving rope is installed in a place convenient for measuring forces in the rope and is fixed, for example, to the winch bed with the help of an arm 18. The pin 13 disconnects one of the rods 11 and the supporting pulls down 1 and 2 to the side, the blocks pour, 9, to the sides of the cheeks 1 and 2 and are released until the rollers 6 come into contact with the rope 7. Then, the supporting block 10 returns to the previous position and the telescopic rod 11 the pin 13 is connected to the bracket 12. After that, the adjusting screw 15. by rotation is installed in contact with the spring-loaded from the brackets 12. unit 10 by means of a hardener from the cheeks On the cable 7 is installed lightly bred by the rod 16 so that the arrow of the indicator 17 is in the zero position.

Предлагаемое устройство по сравнению с известным позволяет снизить износ за счет изменения прохождения троса не по ломаной линии, а по прямой. Кроме того, при измерении усилий жесткость троса не влияет на показания индикатора.The proposed device in comparison with the known allows to reduce wear by changing the passage of the cable not in a broken line, but in a straight line. In addition, when measuring efforts, the stiffness of the cable does not affect the indicator.

Claims

The invention relates to a measuring technique. . A device for measuring the tension of a cable is known, where the measurement of forces is carried out by pressing a cable on a roller connected to a controlled device l. A disadvantage of this device is that the passage of the rope through the rollers leads to additional wear of both the rope and the rollers. The closest to the invention is a device for determining the tension of the same towing trawling cables containing blocks and meter. A disadvantage of the known device is that the rope runs along a curve, which causes additional wear. In addition, the device does not have sufficient accuracy. The purpose of the invention is to reduce the rope's wear and increase the measurement accuracy. This goal is achieved by inserting two spring-loaded cheeks into the device, pivotally connected by an axis with an axis, at the ends of which brackets with extreme guide blocks are installed, x average direction of the central unit It is hinged with this axis by means of telescopic spring-loaded rods, with rollers mounted on the inside of each cheek, and the meter is made in the form of an indicator mounted on one of the cheeks, and adjustable ovochnogo screw mounted on the other cheek ,, kontaktiruk Dego through a spring-loaded rod with an indicator. FIG. 1 shows the proposed device, a general view; in fig. 2, section A-A in FIG. one; in fig. 3, device in plan view. The device is based on the principle of measuring the thickness of a rope, the diameter of which varies depending on the load applied to the rope. The device comprises cheeks 1 and 2 pivotally connected by an axis 3. Rollers 6 are hinged on cheeks (in their plane) on the inner sides opposite each other on bearings 4 and 5. To guide a rope 7 between rollers, on the edges of cheeks on axis 3, on brackets 8, blocks 9 are mounted. In the lower part of the cheeks there is a support block 10 mounted by means of telescopic rods 11 which are pivotally connected to brackets 12 mounted on axis 3. Rods 11 are connected to brackets 1 by means of fixing pins 13. Constant The contact between the rollers b and the rope 7 is provided by a spring 14 of compression, between the cheeks. Cheek 1 has an adjusting screw 15, and cheek 2 has a spring-loaded stem 16, which is in contact with the adjusting screw 15. The spring-loaded stem 16 is connected to indicator 17, the scale of which is otted in the limits of the efforts that are in the rope during work. In the upper part of the device there is an articulated arm 18.. The device works as follows. A device for controlling the tension of a moving rope is installed in a place convenient for measuring the forces in the rope and, with another bracket 18, is fixed, for example, on the frame of the winch. By pin 13, one of the rods 11 is separated from the brackets 12. and support unit 10 by pulling the hardener down from cheeks 1 and 2 to the side. Blocks 7 are mounted on the cable 7, are slightly diluted to the sides of the cheeks 1 and 2 and released before the rollers 6 come into contact with the cable 7. Then the supporting unit 10 returns to its previous position and the telescopic rod 11 is connected to the bracket 11 with the bracket 12. After that adjusting screw 15. by rotation, contact is established with the spring-loaded stem 16 so that the indicator needle 17 becomes in the zero position. The proposed device, in comparison with the known one, allows reducing wear due to a change in the passage of the cable not along a broken line, but along a straight line. In addition, when measuring the force, the rigidity of the cable does not affect the indicator readings. The invention The device for controlling the tension of a moving rope, containing the direction of the gadie blocks and the gauge, is designed so that, in order to reduce rope wear and increase the accuracy of the measurement, two spring-loaded cheeks are inserted into it interconnected by an axis, at the ends of which the brackets with the extreme guide blocks are pivotally mounted, and the middle guide block is connected with the specified axis pivotally by means of a telescopic sub-brace. ginny rods, while on the inside of each cheek rollers are mounted, and the meter is made in the form of an indicator mounted on one of the cheeks, and an adjusting screw mounted on the other cheek, contact-. hands through a spring-loaded rod with an indicator. Sources of information taken into account during the examination 1. USSR author's certificate it 570804, cl. G 01 L 5/04, 10.05.76.

2. USSR author's certificate number 32847, cl. B 63 B 21/56, 08.04.33 (prototype).