SU918071A1

SU918071A1 - Hydraulic shot-blasting unit

Info

Publication number: SU918071A1
Application number: SU802975265A
Authority: SU
Inventors: Иосиф Самуилович Иванов-Перлин
Original assignee: Предприятие П/Я А-7495
Priority date: 1980-07-07
Filing date: 1980-07-07
Publication date: 1982-04-07

Description

Изобретение относится к области упрочI няющей обработки деталей потоком дроί би.The invention relates to the field of reinforcing processing of parts by a flow of shots.

Известна гидродробеструйная установка, содержащая рабочую камеру с расположенными в ней эжекторными соплами, направ- ⁵ляющим щитком с отверстиями по числу сопел и устройством для закрепления деталей [ 1 ].Known gidrodrobestruynaya unit comprising a working chamber accommodating the ejector nozzles directed visor ^5-governing with holes according to the number of nozzles and a device for fastening items [1].

Недостатком известной установки является сложность конструкции из-за нали- ю чия узла вибрации, предназначенного для придания колебательных движений днищу камеры и направляющему щитку с целью равномерного распределения дроби между соплами по днищу.A disadvantage of the known installation is the design complexity due to the presence of a vibration unit designed to give oscillatory motions to the bottom of the chamber and the guide plate in order to evenly distribute the fraction between the nozzles along the bottom.

Целью изобретения является упрощение ^{1 * * * * * * * * * * * * * 15} конструкции установки при обеспечении равномерного распределения дроби по днищу камеры.The aim of the invention is to simplify ^{1 * * * * * * * * * * * * * 15} installation design while ensuring uniform distribution of fractions on the bottom of the chamber.

Цель достигается тем, что донная часть направляющего щитка выполнена по край- 20 ней мере из двух разъемных пластин дополнительно наклоненных по отношению к боковым стенкам щитка, а отверстия для сопел в пластинах имеют радиус больше, чем у сопла на 1,5—2 диаметра используемой дроби с целью ее свободного прохождения.The goal is achieved by the fact that the bottom of the guide plate is made of at least 20 detachable plates additionally inclined with respect to the side walls of the shield, and the holes for nozzles in the plates have a radius greater than the diameter of the nozzle used by 1.5-2 fractions for the purpose of its free passage.

На фиг. 1 изображена предлагаемая гидродробеструйная установка; на фиг. 2 ~— сечение А—А на фиг. 1-на фиг. 3 — сечение Б—Б на фиг. 1.In FIG. 1 shows the proposed hydroblasting unit; in FIG. 2 ~ - section A — A in FIG. 1 in FIG. 3 - section B — B in FIG. 1.

Гидродробеструйная установка содержит рабочую камеру 1 с приводом 2 вращения и возвратно-поступательного продольного перемещения устройства 3, в котором закреплена обрабатываемая деталь 4. В нижней части камеры 1 размещен бак 5 с маслом, фильтр 6, соединенный с центробежным насосом 7, работающим от электродвигателя 8. Насос 7 трубопроводом связан с коллектором 9, а последний индивидуальными трубопроводами с вентилями 10 соединен с форсунками 11 эжекторных сопелHydroblasting installation contains a working chamber 1 with a drive 2 of rotation and reciprocating longitudinal movement of the device 3, in which the workpiece 4 is fixed. In the lower part of the chamber 1 there is a tank 5 with oil, a filter 6 connected to a centrifugal pump 7 operating from an electric motor 8 The pump 7 is connected by a pipeline to the collector 9, and the latter is connected by individual pipelines with valves 10 to the nozzles 11 of the ejector nozzles

12. На днище 13 камеры 1 размещена дробь 14 вокруг закрепленных на нем в несколько рядов сопел 12 перед входными окнами 15. Внутри камеры 1 размещен щиток 16 с каркасом 17 в виде усеченной пирамиды, которым он прикреплен по периметру к стенкам камеры 1. Щиток 16 снабжен донной частью 18, размещенной в ка3 мере между срезами сопел 12 и окнами 15, имеющей дополнительный наклон по отношению к боковым стенкам 19, 20, .21 и 22 каркаса 17. Доная часть щитка выполнена по крайней мере из двух разъемных пластин 23, в которых имеются отверстия 24 по J числу сопел с радиусом, большим чем у сопла на 1,5—2 диаметра используемой дроби с целью ее свободного прохождения. В верхней части камеры установлен экран 25 для отражения дроби. ' _1с 12. A shot 14 is placed on the bottom 13 of the chamber 1 around the nozzles 12 fixed in it in several rows in front of the entrance windows 15. Inside the chamber 1 there is a flap 16 with a frame 17 in the form of a truncated pyramid with which it is attached around the perimeter to the walls of the chamber 1. The flap 16 equipped with a bottom part 18, placed at least between the nozzle sections 12 and the windows 15, which has an additional inclination with respect to the side walls 19, 20, .21 and 22 of the frame 17. The bottom part of the shield is made of at least two split plates 23, in of which there are openings 24 in the J number of nozzles with a radius, pain than the nozzle by 1.5-2 diameters of the used fraction with the aim of its free passage. At the top of the camera, a screen 25 is installed to reflect the fraction. ' _1s

Установка работает следующим образом.Installation works as follows.

Включается электродвигатель привода 2, осуществляющий врайгение устройства 3, а вместе с ним и закрепленной в нем деталью 4 (на фиг. 3 показано две детали 4). Затем по программе включается центробежный насос 7 посредством электродвигателя 8, засасывающий масло из бака 5 через ₂₀фильтр 6 и нагнетающий его под давлением в коллектор 9, а из последнего масло поступает по трубопроводам (при необходимости есть индивидуальная регулировка в виде вентилей 10) к форсункам И сопел 12. Дробь 14 через входные окна 15 направляет- 2S ей струей масла на упрочняемые детали 4. При этом детали одновременно с вращением совершают от привода 2 возвратно-поступательное продольное перемещение для обеспечения равномерного упрочнения своей поверхности. В процессе работы дробь 14, отражась от деталей 4, экрана 25, корпуса камеры 1, падает вниз разнонаправленно, несмотря на то, что экран 25 устанавливается с наклоном для упорядочения направления отражения струи.The electric motor of the drive 2 is turned on, carrying out the ignition of the device 3, and with it the part 4 fixed in it (in Fig. 3 two parts 4 are shown). Then, according to the program, the centrifugal pump 7 is turned on by means of an electric motor 8, which sucks the oil from the tank 5 through the ₂₀ filter 6 and pumps it under pressure into the manifold 9, and from the latter the oil flows through pipelines (if necessary, there is an individual adjustment in the form of valves 10) to the nozzles And nozzles 12. Fraction 14 through the inlet windows 15 directs 2S to it by a stream of oil on the hardened parts 4. In this case, the parts simultaneously with rotation rotate longitudinally from the drive 2 to ensure uniform control values of its surface. In the process, the fraction 14, reflected from the parts 4, the screen 25, the housing of the camera 1, falls down in different directions, despite the fact that the screen 25 is installed with a slope to streamline the direction of reflection of the jet.

Равномерное распределение дроби вокруг сопел, гарантирующее качество обработки, обеспечивается конструкцией щитка и его донной части, благодаря которой возможно дозированное прохождение дроби через кольцевые щели в донной части между соплом и краем отверстия для сопла.The uniform distribution of the fraction around the nozzles, guaranteeing the quality of processing, is ensured by the design of the shield and its bottom part, due to which the fractional passage of the fraction through the annular slots in the bottom part between the nozzle and the edge of the nozzle opening is possible.

Продолжительность цикла обработки определена программой. По окончании цикла в первую очередь отключается насос 7 и -прекращается подача масла к форсункам- 11, а затем отключается электродвигатель привода 2 и останавливается деталь 4.The duration of the processing cycle is determined by the program. At the end of the cycle, the pump 7 is first turned off and the oil supply to the nozzles-11 is stopped, and then the drive motor 2 is turned off and part 4 stops.

Гидродробеструйная установка такой конструкции позволит эффективно и качест- , венно производить упрочняющую обработку ¹деталей сложной формы типа лопаток ГТД.Hydroblasting installation of this design will allow efficiently and efficiently, hardening processing of ¹ parts of complex shape such as GTE blades.

Claims

(54) HYDRODROBESTRUCTION INSTALLATION The invention relates to the field of hardening the treatment of parts with a fraction shot. The known hydrodissection installation contains a working chamber with ejector nozzles located in it, a guide plate with holes according to the number of nozzles and a device for securing parts 1. A disadvantage of the known installation is the complexity of the design due to the presence of a vibration unit designed to impart oscillatory movements to the bottom of the chamber and the guide plate in order to evenly distribute the fraction between the nozzles on the bottom. The aim of the invention is to simplify the design of the installation while ensuring uniform distribution of the fraction across the bottom of the chamber. The goal is achieved by the fact that the bottom part of the guide plate is made of at least two detachable plates that are additionally inclined with respect to the side walls of the plate, and the nozzle holes in the plates have a radius larger than the nozzle 1.5-2 times the diameter of the shot with the purpose of its free passage. FIG. 1 shows the proposed hydroprobe installation; in fig. 2 is a section A-A in FIG. 1 - in FIG. 3 is a section BB in FIG. 1. The hydroprobe unit comprises a working chamber 1 with a rotational drive 2 and a reciprocating longitudinal movement of the device 3 in which the workpiece 4 is fixed. In the lower part of the chamber 1 there is a tank 5 with oil, a filter 6 connected to a centrifugal pump 7 operated by electric motor 8. The pump 7 is connected to the collector 9 by a pipeline, and the latter is connected to the nozzles 11 of the ejector nozzles 12 by individual piping 10. A fraction 14 is placed on the bottom 13 of the chamber 1 around fixed to it Dust nozzles 12 in front of the entrance windows 15. Inside the chamber 1 is a shield 16 with a frame 17 in the form of a truncated pyramid, with which it is attached along the perimeter to the walls of the chamber 1. The shield 16 is provided with a bottom part 18 placed in the chamber between the nozzle sections 12 and the windows 15, having an additional inclination with respect to the side walls 19, 20, .21 and 22 of the frame 17. Don part of the shield is made of at least two detachable plates 23 in which there are holes 24 in the number of nozzles with a radius greater than that of the nozzle by 1, the diameter of the fraction used for the purpose of its free passage Yeni. A screen 25 is mounted at the top of the camera to reflect the fraction. The installation works as follows: The drive motor 2 is turned on, allowing the device 3 to rotate, and with it and the part 4 fixed in it (two parts 4 are shown in Fig. 3). The program then turns on the centrifugal pump 7 by means of the electric motor 8, sucking the oil from the tank 5 through the filter 6 and forcing it under pressure into the manifold 9, and from the last oil flows through pipelines (if necessary, there is an individual adjustment in the form of valves 10) to the nozzles 11 nozzles 12. Fraction 14 through the inlet ports 15 directs the oil jet to the reinforced parts 4. At the same time, the parts simultaneously with the rotation make reciprocating longitudinal and longitudinal movement from the actuator 2 to ensure uniform reinforcement Yeni its surface. During operation, the shot 14, reflecting from the parts 4, the screen 25, the casing of the chamber 1, falls down in different directions, despite the fact that the screen 25 is inclined to order the direction of reflection of the jet. The uniform distribution of the fraction around the nozzles, which guarantees the quality of processing, is ensured by the construction of the shield and its bottom part, due to which the fraction may be dosed through the annular slots in the bottom part between the nozzle and the edge of the nozzle opening. The duration of the processing cycle is determined by the program. At the end of the cycle, the pump 7 is first shut off and the oil supply to the injector 11 is stopped, and then the drive motor 2 is turned off and part 4 is stopped. Hydraulic testing the installation of such a design will allow efficient and high-quality processing of parts of the GTE blades. An invention of a hydroprobe installation comprising a working chamber with ejectors located therein, a guide plate with openings according to the number of nozzles, and a device for fixing parts, in order to simplify the design while ensuring uniform distribution of the fraction along the bottom of the chamber, part of the shield is made detachable from at least two plates inclined with respect to the side walls of the shield, and the holes for the nozzles in the plates have a radius larger than the nozzle 1.5-2 times the diameter used Roby. Sources of information taken into account during the examination 1. USSR author's certificate No. 420443, cl. B 24 C 3/18, 1974.

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