SU650959A1

SU650959A1 - Cantilever slewing crane

Info

Publication number: SU650959A1
Application number: SU772519744A
Authority: SU
Inventors: Николай Сергеевич Юрченко; Михаил Харитонович Сухоруков; Василий Михайлович Дудук
Original assignee: Предприятие П/Я В-8664
Priority date: 1977-09-07
Filing date: 1977-09-07
Publication date: 1979-03-05

Description

1one

Изобретение относитс к монтажным кранам, а именно к консольным поворот ным кранам.The invention relates to installation cranes, namely to cantilever slewing cranes.

Известен консольный поворотный кра содержащий колонну, состо щую из неподвижной наружной и выдвижной внутренней секций, стрелу, смонтированную на колонне, подпружиненный упор, лебедку , опорные элементы и трособпочную систему .A cantilever swivel edge containing a column consisting of a fixed outer and a sliding inner section, a boom mounted on a column, a spring-loaded stop, a winch, supporting elements and a cable connecting system are known.

Недостатком крана вл етс сложность монтажа и демонтажа,The disadvantage of the crane is the difficulty of mounting and dismounting,

Цель изобретени - ускорение монтажа и демонтажа крана.The purpose of the invention is to accelerate the installation and dismantling of the crane.

Дл достижени этой цели стрела крана соединена с внутренней выдвижной секцией, а наружна неподвижна секци выполнена с пазом,в котором расположен подвижный шток, причем лебедка снабжена дополнительным тросом, св занным, с подвижным штоком, а подпружиненный упор снабжен скобой дл зацепдени дополнительного троса. Кроме того, с целью расширени зоны дей-To achieve this goal, the boom of the crane is connected to the inner sliding section, and the outer fixed section is made with a groove in which the movable rod is located, the winch being provided with an additional cable connected to the movable rod, and the spring-loaded stop is provided with a bracket for hooking the additional cable. In addition, in order to expand the zone of action

стви крана, опорные элементы снабжены упорными подшипниками и фиксаторами от проворота.strani crane, supporting elements are equipped with thrust bearings and clamps from turning.

На фиг. 1 изображен монтажный кран, общий вид; на фиг. 2 - вид А фиг. 1.FIG. 1 shows a mounting crane, general view; in fig. 2 - view A of FIG. one.

Claims

Inside the fixed, violin section 1 is located in the movable section 2, on which the boom 3 is mounted. Winch 4 is fixed to section 1, an additional cable 6 is wound on its drum 5, the free end of which can be attached to the rod 8 of the rod 8. The rod 8 is installed in the guide 9, -in which the groove 1O is made to move the bracket 7 of the rod 8. The rod 8 abuts against the bracket 11 mounted on the detachable section 2. The position of section 1 and 2 is fixed by a finger 12 which is installed in the hole 13. On the spring-loaded stop 14 there is a bracket 15, which can atsepl thousand wire 6 to overcome the stop 14 with a support 16 from the top output. Thrust bearings 18 are installed on the upper 16 and lower 17 supports, by means of which circular rotation of section 1 and section 2 with boom 3 is ensured relative to supports 16 and 17. The position of the boom is fixed by a finger 19 installed in the matching holes of the flanges 20. Work with a crane for lifting cargoes are as follows. To secure the crane in the excavation, the cable 6 is connected to the bracket 7, and with the help of a winch 4 the rod 8 is pulled upwards. I act on the bracket 11, the rod 8 lifts section 2 with an emphasis 14. When stretching section 2, emphasis 14, abutting the support 16 against the roof of the excavation, compresses the spring that ruptures the valve in the excavation. Pulling section 2 out of section 1 occurs until until the valve is securely fixed in the excavation, then the relative position of the sections is fixed with a finger 12. When adjusting the vertical position of the axis of rotation of the crane or when it is necessary to move the crane during installation to other nearby points of production, the cable 6 is connected to the clamp 15 and with the help of a winch the stop 14 is pulled down, the crane is installed at the desired point of development, after bringing the abutment to the normal spring condition. Then, the boom 3 rotates in the desired direction and is fixed with a finger 19. Invention 1. The console rotary crane containing a column consisting of fixed tension: an external and retractable inner section, an boom mounted on the column, a supporting stop, a winch, supporting elements and cable system, characterized in that, in order to speed up the installation and dismantling of the crane, the boom is connected to the internal sliding section, and the external fixed section is made with the groove in which the movable is located. a rod, the winch being provided with an additional cable connected to the movable brush, and the spring-loaded stop is provided with a bracket for hooking the additional cable.

2. The crane according to claim 1, in accordance with the fact that, in order to expand the zone of action of the crane, the supporting elements are provided with retaining lower arms and clamps against rotation. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 393195, cl. B 66 C 23 / O2, 1971.. S-MF-fc:

65O959 mm ig. / w View