SU927711A1

SU927711A1 - Versions of self-aligning crossbeam

Info

Publication number: SU927711A1
Application number: SU802981456A
Authority: SU
Inventors: Вилен Абрамович Слонимский
Original assignee: Специальное Проектное Конструкторско-Технологическое Бюро "Кассетдеталь"
Priority date: 1980-09-12
Filing date: 1980-09-12
Publication date: 1982-05-15

Description

Изобретение относитс к подъемнотранспортному машиностроению, в частности к самоустанавливающимс траверсам. FIELD OF THE INVENTION The invention relates to lifting transport machinery, in particular to self-aligning cross-arms.

Известна самоустанавливающа с траверса, содержаща балку с уравновешивающим механизмом, включающим по крайней мере один гидроцилиндр, трубопроводы и золотниковый переключатель 13 .A self-adjusting crosshead is known, comprising a beam with a counterbalancing mechanism comprising at least one hydraulic cylinder, pipelines and a spool switch 13.

В известном устройстве силовые цилиндры работают в т желых услови х , так как они воспринимают нагрузку как от полного веса груза, так и от веса балки с уравновешивающим механизмом, все это не обеспечивает достаточной надежности устройства в работе и сокращает срок службы.In the known device, the power cylinders operate under severe conditions, since they perceive the load from both the total weight of the load and the weight of the beam with a balancing mechanism, all this does not provide sufficient reliability of the device in operation and shortens the service life.

Цель изобретени - Повышение надежности путем снижени нагрузки на шток гидроцилиндра.The purpose of the invention is to increase reliability by reducing the load on the hydraulic cylinder rod.

Цель достигаетс тем, что траверса снабжена шарнирно прикрепленными одними концами к корпусу гидроцилиндра и к штоку т гами, другие концы которых прикреплены шарнирно к вертикальному стержню, которым снабжен золотниковый переключатель, при этом гидроцилиндр снабжен пневмогидроаккумул тором и соединен с золотниковым переключателем.The goal is achieved by the fact that the traverse is provided with hinged one ends to the cylinder body and to the rod with rods, the other ends of which are pivotally attached to the vertical rod with which the spool switch is equipped, while the hydraulic cylinder is equipped with a pneumohydroaccumulator and is connected to the spool switch.

Траверса может быть снабжена шарнирно прикрепленными одними концами к корпусам гидроцилиндров т гами, другие концы которых шарннрно прикреплены к вертикальному стержню, которым снабжен золотниковый переключатель , при этом каждый гидроци10 линдр снабжен пневмогидроаккумул тором и соединен с золотниковым переключателем , а штоки гидроцилиндров жестко соединены между собой.The traverse can be provided with hinged one ends to the housings of hydraulic cylinders with thimbles, the other ends of which are hingedly attached to a vertical rod, which is equipped with a spool switch, with each hydraulic cylinder equipped with a pneumohydroaccumulator and connected to the spool switch, and the hydraulic cylinder cylinders are rigidly attached to the spool switch.

На фиг.1 изображена сэмоустанав15 ливающа с траверса; на фиг.2 - узел L на фиг.1; на фиг.З - самоустанавливающа с траверса, и вариант.Figure 1 shows a self-installation of a traverse; figure 2 - node L in figure 1; fig.Z - self-aligning with the traverse, and option.

Самоустанавливающа с траверса содержит балку 1 с уравновешивающим Self-adjusting crosshead contains beam 1 with balancing

20 механизмом, состо щим из двух гидроцилиндров 2 и 3 с пневмогидроаккумул тором 4 и 5, золотниковые переключатели 6, сообщающиес между собой трубопроводом 7.20, a mechanism consisting of two hydraulic cylinders 2 and 3 with a pneumohydroaccumulator 4 and 5, spool switches 6, which are connected with each other by a pipeline 7.

Гидроцилиндры 2 и 3 установлены Hydraulic cylinders 2 and 3 are installed

Claims

25 on the triangle 8, formed from t h, pivotally interconnected, the base 9 of the triangle is rigidly connected with the pistons 10 and 11 of the hydraulic cylinders and serves as their common stem. When it is connected by means of the driver 12 with the beam I, it can be moved along the rollers 13 relative to the axis of symmetry of the triangle. The verin of the triangle through the hinged earring 1 interacts with the hook of the crane. The switch b, using a rod 15 and connections 16 and 17, interacts with a triangle 8. In beam 1, a device is mounted for fastening cargo hangers consisting of trucks 18 and 19 freely moving along beam 1 and locked with cargo hangers 20 and 21. And the trolleys are interconnected by a flexible endless element 22 interacting with blocks 23 and 24 mounted on a beam, with one trolley attached to the upper branch of the element and the other to the lower Self-aligning beam from the traverse as follows. The traverse attached to the crane hook is attached to the load 25. At the initial tension of the ropes of the cargo suspensions, the trolleys 18 and 19 automatically roll over the beam 1 and set above the location of the lifting loops. The carts can be moved either to or from the center of the beam, since they are interconnected by a flexible element. If the center of gravity of the lifted load does not coincide with the axis of symmetry of the crosshead, it rotates at the hinge at the apex of the triangle. The pin 15 held by links 16 and 17 is constantly on the bisector of the angle at the apex of the triangle 8 and acts on the switch 6, which allows fluid to flow from the pressure chamber of the hydraulic cylinder to the vacated rear cavity of the same hydraulic cylinder. Excess fluid enters the pneumohydroaccumulator filled with air. In this case, the base 9 of the triangle, moving the piston of one of the hydraulic cylinders to the inside of the cylinder, by means of the driver 12 moves the beam 1 along the rollers 1 until the center of weight is on the axis of symmetry of the triangle, while the beam 1 is installed horizontally. After removal of the load, the piston of this hydraulic cylinder is returned to its original position by the force of the spring. At the same time, the working fluid passes through the pipeline 7 through the return valve (not shown) from the back cavity and the pneumohydroaccumulator to the working one and the traverse returns to its original position. At the location of the center of the cargo shipping sheet to the right of the zones of summer grass grass, the left hydraulic cylinder is activated, and to the left - the right hydraulic cylinder. For loads whose position of center of gravity is easily determined visually, it is recommended that the traverse be fitted with & a traverse with one hydraulic cylinder. To do this, at the top of the corner at the base of the triangle 8, instead of the hydraulic cylinder and the suspension with roller 13, it is necessary to rearrange the lead 12 and connect it to the beam 1. Using the self-aligning cross member allows you to move loads with a different center of gravity (relative to the axis of symmetry) and a different arrangement of cargo loops self-balancing. In addition, by reducing the load on each of the hydraulic cylinders, the durability of the crosshead increases. The expected economic effect from the use of a single self-supporting traverse in production is 780 rubles. during a year. Claim 1. Self-aligning traverse and its variants, comprising a beam with a balancing mechanism including at least one hydraulic cylinder, pipelines and a spool switch, and cargo suspensions, in order to increase reliability by reducing the load on the hydraulic cylinder rod , it is supplied with hinges attached by one ends to the cylinder body and to the rod with rods, the other ends of which are hingedly attached to the vertical rod, with which the spool switch is provided At the same time, the hydraulic cylinder is equipped with a pioneer hydroaccumulator and is connected to a spool switch.

2. A traverse comprising a beam with a counterbalancing mechanism comprising at least one hydraulic cylinder, pipelines and a spool switch, and cargo suspensions, characterized in that, in order to increase reliability by reducing the load on the hydraulic cylinder rod, it is equipped with hinged one ends to hydraulic cylinder housings, gami, the other ends of which are hingedly attached to the vertical rod, which is equipped with a spool switch, with each hydraulic cylinder equipped with a piezo-hydroaccumulator and soy dinen with spool switch, and the hydraulic cylinders are rigidly interconnected. Sources of information taken into account in the examination 1. USSR author's certificate Yu 12711, cl. B 66 C 1/16, 1970 (prototypes) ..