SU569529A1

SU569529A1 - Derrick

Info

Publication number: SU569529A1
Application number: SU7602335506A
Authority: SU
Inventors: Борис Петрович Деменитев; Олег Васильевич Шаронин; Владимир Андреевич Тулупов; Татьяна Евгеньевна Сухова; Владимир Васильевич Кобзев; Исай Израилевич Елинсон
Original assignee: Специальное Конструкторское Бюро Главмостростроя
Priority date: 1976-03-17
Filing date: 1976-03-17
Publication date: 1977-08-25

Description

(54) ДЕРРИК-КРАН(54) DERRIK CRANE

II

Изобретение относитс к грузоподъемнси му оборудованию и может быть использован как в мостостроении при сооружении опор, так и в других област х строительства.The invention relates to lifting equipment and can be used both in bridge construction in the construction of supports and in other areas of construction.

Известен деррик-кран, содержащий ус- тановленную на колонне крестовину с рас поркой и подкосом, несущую мачту и опорноповоротное устройство с рамой и стрелкой, соединенной при помощи стрелового полис- паста с оголовком мачты II.A derrick-crane is known, which contains a crosspiece mounted on a column with a spacing and a strut, a carrier mast and a turntable with a frame and an arrow connected by means of a jib polisher with a mast head II.

Однако проведение монтажнЬ-де монтаж- ных работ такого крана занимает значитель ное врем .However, installation and erection of such a crane takes considerable time.

Целью изобретени вл етс ускорение проведени монтажн1 -демонтажных работ. The aim of the invention is to accelerate the installation and disassembly.

Это достигаетс тем, что Мачта снабжена направл ющими призмами, а на раме установлены взаимодействующие с направл ющими призмами упорные винты, причем к распорке прикреплен монтажный кронштеин с перемещающимис в его корпусе вин том и вилкой, взаимодействующей с основанием подкоса.This is achieved by the fact that the mast is equipped with guide prisms, and fixed screws that cooperate with the guide prisms are installed on the frame, and the mounting bracket with screws in its case and a fork cooperating with the base of the brace is attached to the strut.

На фиг. 1 показан общий вид крана и контуры его промежуточных положений при FIG. 1 shows a general view of the crane and the contours of its intermediate positions at

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монтаже; на фиг. 2 - вид по стрсуг.к.; Л фиг. 1; на фиг. 3 - вид крапа сверлу порв монтажом; на фиг, 4 - монтажный ш;.илцф (разрез Б-Б)на фиг. 5 « моиталльгй кгюиштеин (разрез по оси)installation; in fig. 2 - view of the structure; L FIG. one; in fig. 3 - view of the spear drill after the installation; in FIG. 4, an installation w; Wiltf (section BB) in FIG. 5 "mytiglyggyuitein (axial section)

Деррик кран включает крестовину 1 с прикрепленными к ней распорками 2, соединенными зат жкой 3 и опирающимис па переходные балки с анкерами 4.The derrick crane switches on the crosspiece 1 with spacers 2 attached to it, connected by a pull 3 and resting transition beams with anchors 4.

Claims

In the center of the cross, there is a mast 5 with a tip 6, which is connected to the upper ends of the struts 7, and their lower ends are connected to struts. A pivoting frame 9 is attached to the crosspiece through a slewing bearing device 8 with a ring gear, on which are mounted shooters and a cargo debit, an electrical equipment control cabin and a rotation mechanism. Gear, mounted on the output shaft of the gearbox of the rotation mechanism, engages the support device against the gear ring. The cargo winch drum is divided into two parts by a special tire: the main cargo rope is wound on the main one, and the main polyspast is wound into the main cable and all assembly units are closed with a body consisting of individual shields, which allows install it after mounting the crane. In the front part, to the frame about the mast axis, the main hinge attaches the boom 10, which through the jib pulley 11 with its upper end is connected with the pivot axis of the mast tip. In the upper section of the boom, the tap blocks of the mounting pulley are placed 12. In the lower section of the boom, besides the main one, there is an additional hinge 13. In the middle part of the frame in the plane of the axis of the mast there is a mounting hinge made of two stop screws 14 with nuts entering the guide prisms 15, located at the base of the mast. The prisms are located at a height that allows the lower flange of the mast to pass over the support without seizing the mounting operations. A frame 16 is placed on the frame with tap blocks of mounting pulley 12. In addition, boom and cargo polyspatch pulley blocks are mounted on the rack, which ensures a constant angle of the rope from the winches. At the end of one strut 2 in the plane of the mounting hinge, a mounting bracket 17 with a housing 18 is installed. The housing 18 includes a shank of a plug 19 with nuts, while the axis of the shank coincides with the axis of the stop screws of the mounting hinge. The housing 18 in the lower part rests on the screw 2 fixed in the strut 2, due to which the vertical movement of the housing is accomplished. The derrick crane is mounted in the same sequence (see Fig. 1 and Fig. First, the lower part of the crane is assembled: the spider 1, the struts 2 with the spigot 3 and mounted on the transverse beams with anchors 4. On the spider 1 through a rotary support 8, the frame 9 is attached with the mechanisms and the rack 16c with the side blocks of the assembly pulley 1 The mast 5 with the head 6 is laid horizontally on the frame, and the stop screws 1 of the mounting hinge are mounted into the guide prisms 15 at the base of the mast. The mast 6 are attached to the head strut 7 with the upper ends, with one strut remaining suspended, resting on the strut, and the other with its lower end entering the fork 19 of the mounting bracket 17. The boom 10 attaches first to the edge of the swing frame through an additional hinge 13. the jib polyspast 11 rpv " and the assembly polyspast 12 between the stand 16 and the boom. The mounting, polyspast boom 1O, hitting around the additional hinge 13, rises to a horizontal position and is shifted to the main joint. Next, the boom rises at an angle of 20, the boom pulley 11 pulls up, and the boom rises at an angle of 75 (minimum reach), after which the boom pulley rope locks at the branch block at the post 16. As the boom hoist rope winds further, the boom starts to fall down under its own weight and lifts the mast 5 with the tip 6 and the struts 7. At the same time, the mast at the base turns the circle of the axis of the stop screws 14, which enter the prisms of the prisms 15, and the lower end of the strut, which enters the fork 19, turns together with it in the housing 18 of the mounting bracket 17. After being lifted upright, the mast is lowered onto the crossbar with the nuts of the stop screws 14 in contact with the inclined surfaces of the guide prisms 15. The lower end of the strut is aligned with the eye of the strut when the nuts are rotated the threaded shank of the yoke 19 and the screw 20 on which the housing rests. 18. After fixing the strut of the mast, the derrick-crane is ready for operation. Claims of the invention A derrick crane comprising a crosspiece mounted on a column with a strut and strut, a carrier mast and a turntable with a frame and a boom connected by means of a boom polyspast with a mast tip, characterized in that, in order to speed up the assembly and dismantling, the mast is equipped with prism guides 1 and, and on the frame there are fixed screws which cooperate with the guides of the prisms, and the mounting bracket with a screw and plug moving in its housing deyetvuyushey a strut base. Sources of information taken into account in the examination: 1. Transport construction, No. 10 of 1965, p. 18.

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