SU812405A1

SU812405A1 - Safety arrangement to press

Info

Publication number: SU812405A1
Application number: SU792765936A
Authority: SU
Inventors: Геннадий Михайлович Денисенко; Анатолий Александрович Кузнецов; Виктор Владимирович Каржан; Григорий Николаевич Анисимов
Original assignee: Воронежское Производственноеобъединение По Выпуску Кузнечно-Прессового Оборудования Им.M.И.Калинина
Priority date: 1979-05-16
Filing date: 1979-05-16
Publication date: 1981-03-15

Description

(54) ПРЕДОХРАНИТЕЛЬНОЕ УСТЮЙСТВО К МОЛОТУ(54) MILK SAFETY SAFETY

Изобретение относитс к обработке металлов давлением и может быть использовано в высокоскоростных молотах.The invention relates to the processing of metals by pressure and can be used in high-speed hammers.

Известно предохранительное устройство к молоту, содержащее фиксирую дие сухари, закрепленные на крышке газовой камеры, и контактирующие с коническим хвостовиком штока пневмоцилиндра и конической частью расточки штока бабы 1.A safety device to the hammer is known, which contains locking crackers fixed on the gas chamber lid and in contact with the conical shank of the pneumatic cylinder stem and the conical part of the boring rod of the female 1.

Недостатком устройства вл етс то, что из-за отсутстви ограничени перемещени .фиксирующих сухарей по окружности они при ударе стрем тс сходитьс вместе, что приводит к ненадежности работы устройства.The disadvantage of the device is that, due to the absence of restriction of movement of the locking croutons around the circumference, they tend to come together when struck, which leads to unreliable operation of the device.

Цель изобретени - повышение надежности работы устройства.The purpose of the invention is to increase the reliability of the device.

Указанна цель достигаетс за счет того, что устройство снабжено кольцевой осью, установленной в выполненной на цилиндрической поверхности крышки газовой камеры проточке, а также втулкой, закрепленной по указанной поверхности и закрывающей проточку с кольцевой осью, причем в крышке газовой камеры и во втулке выполнены пазыThis goal is achieved due to the fact that the device is equipped with an annular axis installed in a groove made on the cylindrical surface of the gas chamber cover, as well as with a sleeve fixed along said surface and covering the groove with an annular axis, and grooves are made in the gas chamber cover and in the sleeve.

в которых устанавливаютс фиксирующие сухари , смонтированные на кольцевой оси с возможностью поворота.in which the locking breadcrumbs mounted on the annular axis can be rotated.

На фиг. 1 - показан общий вид молота в разрезе; на фиг. 2 - узел 1 на фиг. 1; на фиг. 3 - сечение А-А на фиг. 2; на фиг.4сечение Б-Б на фиг. 2.FIG. 1 - shows a general view of the hammer in the section; in fig. 2 — node 1 in FIG. one; in fig. 3 is a section A-A in FIG. 2; in FIG. 4, section BB, in FIG. 2

Молот содержит подвижную раму 1, установленную на амортизаторах 2 на станине 3, и смонтированную в верхней части рамы газо0 вую камеру 4, в которую входит шток бабы 5 с уплотнением 6. Над газовой камерой 4 смонтирован пиевмогидравлический цилиндр 7 с поршнем 8, шток 9 которого входит в полость расточки 10, выполненной в штоке баS бы 5. На упругом элементе И смонтирована крышка 12 с пазами, в которых установлены фиксирующие сухари 13, контактирующие с коническим хвостовиком 14 штока 9.The hammer contains a movable frame 1 mounted on shock absorbers 2 on the bed 3, and a gas chamber 4 mounted in the upper part of the frame, into which the cylinder 5 includes a seal 6. Over the gas chamber 4 is mounted a pyvmohydraulic cylinder 7 with a piston 8, the stem 9 of which enters the cavity of the bore 10, made in the stem bS would be 5. On the elastic element And mounted cover 12 with grooves, in which are installed locking crackers 13, in contact with the tapered shank 14 of the rod 9.

Claims

The conical bore section 15 in the rod 5 of the head 5 is made with a taper angle equal to the angle of taper of the shank 14. The pneumatic cavity 16 of the pneumatic-hydraulic cylinder 7 is connected to the bore cavity 15 by means of an opening 17. The hydraulic cavity 18 is connected to a source of movement (not shown). The hydraulic cylinders 19 are provided for lifting the head 5 to the upper initial position. The rusks 13 have the opportunity to rotate freely on an annular axis 20 installed in the circular groove of the outer cylindrical surface of the cover 12. The sleeve 21 is fixed on the same surface of the cover 12 and prevents the annular axis 20 from falling out and also has grooves that coincide with the grooves of cover 12. The flange of cover 12 is attached with the help of an additional flange 22. To force the installation of the crackers 13 to a vertical position, the latter with their lower parts connected us passed through the annular orifice by a spring 23. The hammer functions as follows. The cylinders 19 are lowered down. In the cavity 18 through the distributor from the hydraulic actuator (not shown) a pressurized fluid is supplied, the piston 8 with. the rod 9 moves downward, squeezing the gas in the cavities 16 and 10. At the lower position of the rod 9, the crackers 13 under the action of their own weight and the ring spring 23 rotate and set vertically. At the same time, baba 5, by the action of compressed gas in cavity 16, on piston rod of baba 5, mixes down, piston rod of baba 5 leaves the cylindrical groove of lid 12 of gas chamber, baba 5 is accelerated by gas under pressure located in cavity of gas chamber 4. Impact occurs . After impact, Baba 5 is raised by cylinders 19. In the upper position, the piston of the rod of Baba 5 enters the cylindrical groove of the gas chamber 4, the cavity of the gas chamber .4 and the cavity 10 are separated by means of seal 6. The cavity 18 through a distributor (not shown), connects plum. By the action of gas in the cavity 16, the piston 8 with the rod 9 rises, the liquid is displaced from the cavity 5-4. When the piston 8 is raised, the gas in the cavity 16 and 10 expands, the pressure in them decreases to the required (calculated) value to keep the woman 5 by the action of the gas in the side of the gas chamber 4 on the annular area of the piston 1 of the rod 5 of the woman 5. Lift up the rod 9 by the conical shank 14 turning the crackers 13 at an angle corresponding to the angle of the cone surface. The hammer is ready to re-strike. In the event of failure of the seal 6 and gas flow from the cavity of the gas chamber 4 into the cavity 10, when the hydraulic cylinder 19 is lowered, the head 5 of the flange 15 will sddit; on the rusks 13 and held in the up position (fixing the pommel). The elastic element 11 serves as a compensator for small movements of the women 5 and the rod 9 with the breadcrumbs 13 when the women are fixed. Due to the fact that the locking crackers 13 are evenly distributed around the circumference, they perceive the same load, and this increases the reliability of the device. Claims. . , -: A safety device for a hammer containing locking crackers mounted on the lid of the gas chamber and in contact with the conical shank of the pneumatic cylinder stem and the conical part of the drill stem bores, characterized in that, in order to improve reliability, it is provided with a ring axis installed in the on the cylindrical surface of the gas chamber cover a groove, as well as a sleeve fixed on the specified surface and a closing groove with an annular axis, moreover, in the gas chamber lid and the bushing there Nena grooves in which the locking set crackers mounted on the ring axis pivotable. ,,. Sources of information taken into account in the examination 1. USSR author's certificate in application No. 2485442 / 25-27, cl. B 213 7/24, 10.05.77.

FIG. 2

12

13

20

FIG. four