SU962547A2

SU962547A2 - Apparatus for straining and relieving reinforcement elements

Info

Publication number: SU962547A2
Application number: SU813274491A
Authority: SU
Inventors: Федор Тимофеевич Какойченко; Эдуард Иосифович Острун; Олег Александрович Хренков; Александр Васильевич Шайдецкий
Original assignee: Киевский Филиал Конструкторско-Технологического Бюро "Стройиндустрия" Минпромстроя Ссср
Priority date: 1981-02-04
Filing date: 1981-02-04
Publication date: 1982-09-30

Description

Изобретение относитс к укладке арматуры.This invention relates to the installation of reinforcement.

По основному авт.св. № 903541 известно устройство дл нат жени и .отпуска арматурных элементов, содержащее силовой, привод, неподвижный и подвижный упоры, причем последний выполнен с плунжерами и закрепленными на их штоках зажимами арматуры; подвижный упор выполнен в виде заполненной жидкостью камеры, в которой расположены плунжеры и снабжен дополнительным упором дл плунжеров в виде крьашки, образующей с подвижным упором емкость, заполненную жидкостью 1 .According to the main auth. No. 903541, a device for tensioning and releasing reinforcing elements is known, which contains a power, actuator, fixed and movable stops, the latter being made with plungers and reinforcement clamps attached to their rods; The movable stop is made in the form of a chamber filled with liquid in which the plungers are located and is provided with an additional stop for plungers in the form of a cam forming a container filled with liquid 1 with the movable stop.

Недостатком данного устройства вл етс то, что дл обеспечени его работы требуетс применение силовых устройств (приводов), развивающих усилие, превышающее суммарное напр жение в группе напр гаемых элементов.The disadvantage of this device is that to ensure its operation requires the use of power devices (drives), developing a force exceeding the total voltage in the group of tensioned elements.

Цель изобретени - упрощение силового привода устройства и расширение диапазона его применени .The purpose of the invention is to simplify the power drive of the device and expand the range of its application.

Поставленна цель достигаетс тем, что устройство снабжено цилиндрами, расположенными на заполненной жидкостью камере, и дополнительными плунжерами с позаан ми, причем дополнительные плунжеры вмонтированы в камеру , а .поршни расположены в соответствующих цилиндрах.The goal is achieved by the fact that the device is equipped with cylinders located on a chamber filled with liquid and additional plungers with postures, with additional plungers mounted in the chamber, and the pistons are located in the respective cylinders.

С Целью выигрыша в силе и обеспечении возможности использовани насосов низкого давлени общий ход дополнительных плунжеров, рёвён или больше cyMMajpHoro удлинени всех напр гаемых элементов, а суммарные площади дорш10 ней в 2-3 раза превышают суммарные площади плунжеров.With the purpose of gaining strength and ensuring the possibility of using low pressure pumps, the general course of additional plungers, puffers or more cyMMajpHoro lengthening of all tensioned elements, and the total area of the dorsh10 is 2-3 times the total area of the plungers.

На фиг.1 изображена форма с напр гаемыми элементами и устройством, общий вид; на фиг.2 - сечение по р ДУ рабочих и вспомогательных плунжеров устройства.Figure 1 shows a form with tensioned elements and a device, a general view; figure 2 is a cross section along p DU working and auxiliary plunger device.

Форма 1 с неподвижными упорами 2 и 3 дл укладки арматурных элементов 4 установлена между упорами 5 и сое20 динена с камерой 6, заполненной жидкостью , причем камера 1 закреплена анкерами 7.Form 1 with fixed stops 2 and 3 for laying reinforcing elements 4 is installed between stops 5 and co-dinena with a chamber 6 filled with liquid, the chamber 1 being fixed by anchors 7.

В камере 6 смонтированы рабочие плунжеры 8, которые с помощью, на25 пример, цанговых зажимов 9 и т г 10 с гайками 11 соединены с арматурными элементами 4. С противоположной стороны рабочих плунжеров в емкость камеры вмонтированы дополнительные In the chamber 6, working plungers 8 are mounted, which, using, for example, collet clamps 9 and 10 and 10 with nuts 11, are connected to reinforcing elements 4. On the opposite side of the working plungers, additional chambers are mounted in the chamber capacity

Claims

30 plungers 12, each of which is equipped with a piston 13 with a diameter 2-3 times greater than the diameter of the plunger 12. The piston 13, in turn, enters the cylinder 14 mounted through the seal 15 on the camera body. The length of the cylinders is such that the total stroke of the additional plungers 12 is equal to or exceeds the total stroke of the working plungers 8. To fix the end position of the working plungers 8, the cover 16 is attached to the chamber, forming an additional capacity. The device’s hydraulic system includes a pump 17, pipes 18-20, taps 21 and 22, pressure gauges 23 and 24, and a control spool 25. It will work as follows. Form 1 with the laid reinforcing elements 4 is installed between UPA 5, Elements. 4 is connected by clamps 9 to working plungers 8. When cavity B is filled with liquid, chambers b close taps 21 and 22, turn on pump 17, and slide spool 25 is set to the right end position. The oil through pipeline 20 from pump 17 enters the rodless cavities B of cylinders 14 and moves pistons 13 to the left, and with them additional plungers 12. Due to the difference in diameters of pistons 13 and plungers 12, pressure in the cylinder increases more slowly than in cavity B of the chamber, and increases in it to the required voltage of one of the rods, which is controlled by the pressure gauge 23. Because of the pressure on the working plungers 8 in the chamber, they equalize the force on each element. Since the additional plungers 12, continue to exert pressure in the chamber, pushing out the working plungers, the reinforcing elements of Tfa strain up to a predetermined force, each separately and all in the group, since the form and the device are fixed non-movably relative to each other. Further, by rotating the nuts 11, the position of the elements 4 is fixed, and moving the spool 25 to the extreme left position reduces the pressure in the cavity B of the chamber, connecting the cavities in the cylinders 14 to the cavity G of the tank 16. In the clamps 9, the form 1 is sent for post-molding . For a smooth tempering after forming, the reinforcing elements 4 are again connected to the working plungers 8, sub-. The pressure in the cavity B of the chamber b is reached to the worker and the nuts 11 are released. Then, the pressure in the chamber b is gradually reduced and the tensioned elements are released. The proposed device eliminates the need for powerful hydraulic jacks and high pressure hydraulic pumps, provides the ability to produce voltage group reinforcement; the labor intensity is reduced, as the operations for changeover and return of the hydraulic jacks to their original position are reduced. Claims of the invention 1. Device for tension and tempering of reinforcing elements according to the author. 903541, (Differing in that, with () simplifying the actuator and expanding the range of its application, it is equipped with cylinders located on a fluid-filled chamber and additional plungers with portions, and additional plungers are mounted in the chamber, corresponding cylinders.

2. A device according to claim 1, characterized in that, in order to gain strength and to enable the use of low pressure pumps, a common stroke; additional plungers are equal to or greater than the total elongation of all tensioned elements, and the total areas of the pistons are 2-3 times the total areas of the plungers. Sources of information taken into account in the examination 1. USSR author's certificate, item 2921489/33, cl. E 04 G 21/12, 08.05.80. . ,