SU885515A1 - Support of a slewing structure - Google Patents

Description

(54) SUPPORT FOR SWIVEL STRUCTURE

I

The invention relates to mobile structures having a rotation about a vertical axis, and can be used, for example, in turntables of radio telescopes.

Known support rotary nor includes driving roller supports moving along the track and braking in a predetermined position (.1).

The disadvantage of this solution is the complexity of the device.

The closest in technical essence to the present invention is a support for a pivotal structure including an annular foundation with concentrically embedded c. it is along the perimeter with rows of anchor bolts and a supporting horizontal platform supported on a ring foundation through support units made with holes for anchor fastenings 2.

The disadvantage of such support structures is the complexity of the rearrangement, the need for auxiliary lifting vehicles, and most importantly, such structures are not acceptable in large structures that cannot be lifted by existing lifting vehicles.

The purpose of the invention is to improve the operating conditions by allowing the carrier platform to rotate without lifting above the ring base.

The goal is achieved by the fact that in the support of a rotating structure, including a ring foundation with concentrically mounted in it. the perimeter is a series of anchor bolts and a supporting horizontal platform supported on a ring foundation through support nodes made with holes for anchor fastenings, support nodes are made with support shoes having a T-shaped section, radially relative to the foundation base, with the rack of each The bashmakov is supported on a ring foundation in the gap between the rows of anchor bolts, and the shoe consoles are placed above the anchor bolts, the anchors being made in the form of a threaded sleeve 20 with a bolt head oh and internal thread corresponding to the thread of the anchor bolts.

Claims (3)

Holes for anchoring are made on brackets bashmak. In addition, the support shoe consoles are made with through horizontal cavities, in which the crossbars with through holes at the ends are movably mounted. FIG. 1 {bearing, section; FIG. 2 is the same in the plan; in fig. 3 is a section A-A in FIG. 2 for an embodiment of anchoring on console brackets; in fig. 4 - the same with cross traverses; in fig. 5 is a section BB in FIG. I. A pivotal structure 1 (shown in FIG. I conventionally), representing, for example, a spatial metal structure, is mounted on a horizontal platform 2, including diagonal 3 and contour 4 core elements that form a square, the four corners of which are mounted on supporting nodes 5. Nodes 5 are located on the ring foundation b, the center 7 of which coincides in the horizontal projection with the intersection of the diagonals of the 3 platforms. Anchor bolts 8 are mounted in the foundation, arranged in pairs in an angular step along two concentric circles 9 and K). Each support unit is a support shoe that has a T-shaped section in a direction radial with respect to the foundation base. The rack 11 of each shoe is supported on a ring foundation in the gap between the rows of anchor bolts 8. The cantilevers of 12 basmaks are placed above the anchor bolts and are made with through holes 13, which include threaded bushings 14 with a bolt head and internal thread. The distance between the two holes 13 on each console is equal to or a multiple of the anchor bolts on the circumference. The threaded sleeve 14 consists of a long cylindrical part 15 entering the hole 13 and a bolt head 16, the diameter of which is larger than the diameter of the hole 13. The internal thread 17 is cut in the lower part of the sleeve. The supports are mounted so that the holes 13 are above the anchor bolts 8, after which the nuts are screwed onto the bolts. Thus, the rotation of the structure can only be carried out at angles equal to or a multiple of the angular tag of the anchor bolts. In addition, in the described embodiment, the constructions of the pre, n are very stringent requirements for the absence of the accumulated error of the angular 1 nag bolts and the angle between the holes of the 13 support units located in different corners of the horizontal platform. These drawbacks are eliminated in the variant of the design of the support assembly, represented by the number in FIG. 5 and 4.. Here, the consoles 12 of the shoes have through horizontal cavities 18, for example, rectangular, located across the shoes, i.e. directed tangentially to the circumference 9 and 10. In cavity 18, traverse 19, representing flexurally rigid beams, the length of & which is greater than the width 6 of the reference node 5; At the ends of the cross-arms there are vertical holes 13 for the sleeves 14. The distance t between the holes is a multiple of several (three to four) steps of the bolts 8 circumferentially 9 or 10. Thus, due to the possibility of moving the crosshead 19 in the cavities 18, rigid tolerances on the the angular pin of the bolts 8 and the relative position of the holes 13, and the structure itself is able to rotate relative to the traverse attached to the (t-6) circumferentially fixed to the anchor bolts. In this case, if (t-b) is greater than the circumferential pitch p of the bolts R, the structure can be installed in any angular position, regardless of the location of the anchor bolts. The rotation of the structure from one angular position to another is carried out with 8 nuts screwed from bolts 14 using a winch or some other known simplest mechanism. With this, the support unit 5 slides along foundation 6. At the end of the turn, the position of the structure is fixed by anchor bolts. To improve the centering of the structure, a central node (not shown) may be installed on the foundation in the center 7. The invention makes it possible to improve the operating conditions by allowing the carrier platform to rotate without rotating over the ring base. Claims. A pivot structure support, including an annular base with concentrii: a row of anchor bolts built into it around the perimeter, and a supporting horizontal platform supported on the annular foundation through supporting assemblies C, and with holes for anchoring, which is different in that improving operating conditions by allowing the carrier platform to rotate b & s lifting it above the ring base, the support units are made with support shoes that have a foundation radially relative to the center Tobraznoe sectional direction, wherein each of the shoe rack simply supported on the foundation ring in the gap between the rows of anchors, and console Clogs rgpmenleny above anchor bolts, the anchor attachment are formed as a threaded sleeve with bolyu Golovoy howl and onutrsnney. thread corresponding to the thread of the anchor bolts. 2. A support according to claim 1, characterized in that the holes for the anchors are made on the console of the shoes. 3.Ortopa according to claim I, characterized in that the supports of the support shoes are made with through horizontal cavities, in which the crossbars with through holes at the ends are mounted with the possibility of movement. Information sources, . taken into account in the examination 1. USSR author's certificate number 489170, cl. H 01 Q 1/12, 1972. 2.Sokolov A.G. Metal structures of antenna devices. M., stroiizdat, 1971, p. 27, fig. 36