SU977359A1

SU977359A1 - Device for engaging hollow articles

Info

Publication number: SU977359A1
Application number: SU813244133A
Authority: SU
Inventors: Виктор Васильевич Егоров
Original assignee: Предприятие П/Я М-5703
Priority date: 1981-02-03
Filing date: 1981-02-03
Publication date: 1982-11-30

Description

(54) ЗАХВАТ ДЛЯ ПОЛЫХ ИЗДЕЛИЙ(54) CAPTURE FOR HOLLOW PRODUCTS

Изобретение относифсч к(грузоподъемному оборудованию, в частности к навешиваемым на грузовой крюк крана грузозахватным приспособлени м дл изделий с полост ми.The invention relates to (lifting equipment, in particular, to the lifting attachment of products with cavities hung on the crane's hook.

Известен захват дл полых иэде-i ЛИЙ, содержащий прижимы, шарнирно соединенные посредством осей с распорными элементаг и, размещенные с внутренней стороны прижимов упоры дл распорных элементов и приводное устройство прижимов l.Known gripper for hollow IDE-i LI, containing clamps, pivotally connected by means of axes with spacer elements and placed on the inner side of the clamps stops for spacer elements and the drive device clamps l.

Недостатком известного захвата вл етс низка надежность в работе.A disadvantage of the known grip is low reliability in operation.

Цель изобретени - повышение надежности в работе.The purpose of the invention is to increase reliability in operation.

Поставленна цель достигаетс тем, что в захвате упйры установлены на ос х и выполнены каждый из двух секторов , соединенных попарно пластиной, установленной с возможностью опирани на нее распорных элементов.The goal is achieved by the fact that, in the gripping of the upira, the axles are mounted on each axle and each of the two sectors are connected in pairs with a plate mounted with the possibility of supporting the spacer elements on it.

На фиг.1 изображен предлагаемый захват/ исходное положение на фиг.2- то же рабочее положение, при наклоне распорных элементов на критический угол; на фиг.З - упор с распорным элементом и пластиной; на фиг.4 - то же, вид сверху; на фиг.5 - вид по стрелке А на фиг.З.Figure 1 shows the proposed grip / starting position in figure 2 - the same working position when tilting the spacer elements at a critical angle; on fig.Z - stop with a spacer element and the plate; figure 4 is the same, top view; figure 5 is a view along arrow a in fig.Z.

Захват состоит из прижимов 1 и 2 с зубь ми и поперечных распорных элементов 3, соединенных с ос ми 4. На удлиненном конце прижима 1 закреплено кольцо 5, установленное по оси захвата, через которое пропущены канаты. Грузовой канат 6 прикреплен к прижиму 1, холостой канат 7 к прижиму 2. Петли на свободных кон10 цах канатов 6 и .7 навешены на крюк . На ос х 4 установлены упоры выполненные в виде секторов 8, соединенных попарно между собой пластинами 9. Центральный угол |Ь секторов 8 The gripper consists of clamps 1 and 2 with teeth and transverse spacer elements 3 connected to axes 4. At the elongated end of clamp 1 there is a ring 5 mounted along the axis of the gripper through which the ropes are passed. The cargo rope 6 is attached to the clamp 1, the idle rope 7 to the clamp 2. Loops at the free ends of the ropes 6 and .7 are hung on a hook. On axles x 4 there are stops made in the form of sectors 8 connected in pairs with each other by plates 9. Central angle | b of sectors 8

15 больше заданного критического угла oL на 90°. Критический угол d- - угол минимального наклона распорных элементов 3 к горизонтали дл данного груза. Упоры размещены между прижима20 ми 1 и 2 распорными элементами 3 в зоне их сближени при захвате груза. В исходном положении устройство подвешено на холостом канате 7 и находитс в сложенном положений. Грузовой 15 is greater than the specified critical angle oL by 90 °. The critical angle d- is the angle of minimum inclination of the spacer elements 3 to the horizontal for a given load. The stops are placed between the clamps 20 and 1 by the spacer elements 3 in the zone of their approach when the load is seized. In the initial position, the device is suspended on the idle rope 7 and is in the folded positions. Cargo

25 канат б длинее холостого каната 7 и поэтому ослаблен (фиг.1).25, the rope b is longer than the idle rope 7 and therefore weakened (FIG. 1).

Захват работает следующим образом .Capture works as follows.

После ввода устройства внутр1з After entering the device internal

Claims

30 of the load and removal of the idle rope 7 from the hook of the crane, the gripper is suspended on the load channel 6, self-erecting, turning 4 axles 4 with spacer elements 3 and touching the inner surface of the cavity with the teeth of the clamps 1 and

2. When lifting, the device self-expanding occurs. At the same time, the spacers 3 continue to rotate on the axes 4. If the compliance of the material, for example a pipe / or a 9L1LIPSOVID-shaped pipe, becomes inclined to the angle of the spacer elements, then the spacer elements 3 will be pressed into the plates 9, as a result The spreading elements of the critical position and further folding of the device back and its disruption from the product will not occur. If the ductility of the pipe is observed along its entire length from the point of contact of the clamps I and 2 to the edge of the pipe, then the gripping and, consequently, lifting of the pipe will not occur. This is an additional preference for the proposed device, since there is an automatic self-limiting lifting capacity ( on traction effort on the cargo rope). If the gripping of the pipe took place at an angle of inclination of the raspfnyh elements 3 more than the critical angle (i.e. the spacers 3 did not reach their critical summaries), and at shifting, the material under the clamping tooth or the pipe at the site of the crater became elliptical in shape. . spacers 3. turn on: axis x 4, reach their critical position and interact with the plates 9 stops, not. As a result, the device will not collapse and the load will not collapse. After placing the load on the platform or place of the assembly, the idle rope 7 is hung again on the crane hook (the load rope sags at the same time) and the device is lifted. the spacers 3 rotate in the opposite direction, the device is glued together and pulled out of the pipe. The design of the lugs can allow for a change in the central angle (L for pre-setting the device for working with various products. However, Because in practice, switching to other products may occur infrequently, it is advisable to equip the proposed device with a set of stops.The use of the proposed device will ensure the reliability and safety of loading and unloading and building and assembly operations with pipes and others. local damage in places with an internal surface or which can take an elliptical shape at the gripping site. Claims of hollow products, contents clamps, pivotally connected by axles with spacers, located on the inner side of the clamp and jib spacers for spacer elements and driving device. clamps characterized in that, in order to increase reliability, the stops are mounted on the said axes and are made each of two sectors connected in pairs with a plate mounted with the possibility of supporting the spacer elements on it. Sources of information taken into account in the examination 1. The patent of Germany W 2805205, cl. 66 C 1/54, 1980 (prototype).