SU1776631A1 - Step-by-step lift - Google Patents

Description

THE UNION OF SOVIET SOCIALS IS TRUE TO SKY REPUBLICS

SU1776631 A1

STATE COMMITTEE

BY INVENTIONS AND DISCOVERIES

AT SCST USSR |

DESCRIPTION OF THE INVENTION ^

TO AUTHOR CERTIFICATE (21) 4880352/11 (22) 06.11.90 (46) 11.23.92. Bull. No. 43 (71) Ukrainian State Design and Engineering Institute Ukrspetsmontazhproject ”(72) A.A. Ignatenko, B.I. ^ Vakulenko, N.P. Sytnik, I.V. Ivanov, V.K. Chernenko, M. M. Tyushka. M.S.Zaslavsky and F.A. Lutsenko (56) Copyright certificate of the USSR No. 994395, class. B 66 F 3/46, 1981.

USSR copyright certificate No. 1222625, cl. B 66 F 7/00, 1983. (54) STEP-UP LIFT (57) Use: hoisting gear. namely, stepper lifts mainly for lifting heavyweight bulky coatings. The inventive hoist contains a frame 1, including two branches of guides 2,3 and made in the form of a design column · erected structures, jack beams 4, jacks 5, safety devices 6, section load-bearing element, supporting elements 8, mounted on the branches 2.3. an intermediate support 9 and jacking bodies 10. The intermediate support 9 includes vertical posts 11 and horizontal connections 12,13 connecting the lower parts of the latter. The jack-over bodies 10 include L-shaped vertical posts 14. located in front and behind the branches 2,3, and a support platform 15 made of ties 16.17,

PILE A1

Фа & 1 · 1776631 4 located above the bonds 12. Sections of the load-bearing element 7 are made in the form of spatial rigid structures. On branches 2,3 guides for sections are fixed. The elevator comprises temporarily connected the lower section 19 with the supporting elements 8 of the upper parts of the uprights 11 with the lower section 19 and the connections 12 of the support 9 with the connections 17 of the jacks 10, the first 21, second 22 and third 23,24 connecting means, respectively. Jacks 5 and safety devices 6 are placed in two diagonal planes. 12 ill.

The invention relates to lifting mechanisms, namely to stepper hoists, mainly for lifting heavy-weighted large-size coatings.

Known stepper elevator containing a frame with vertically opposed branches of the rails, jacks mounted on jack beams mounted on top of the frame, jack lift, load-carrying tape with holes, connected with a section load-bearing element in the form of articulated link traction, fixed on the internal parts branches of guides at several levels supporting elements and means for connecting a sectional load-bearing element with support elements and a load-carrying tape with a jack and above omkratnoy beams [1]. The installation of a well-known elevator at high altitude is complicated and unsafe, and, in addition, its implementation requires a crane with large lifting capacity and lifting height. At the same time, maintenance of the elevator during the lifting process is inconvenient and not safe, since it is carried out at a considerable height. In addition, to dismantle the links of the traction on the frame of the elevator, it is necessary to perform work platforms at several levels, which somewhat complicates its design.

Closest to the claimed hoist is a known stepper hoist containing a frame with vertically opposed guide branches, jacks mounted on jack beams, support elements mounted on the upper parts of the guide branches, sections of load-bearing elements made in the form of rigid spatial structures having means for connecting them together and forming a vertical row of these elements, jack-up bodies, an intermediate support for raising and lowering sec nts load-bearing elements, means for connecting these sections with the supporting elements of the branches of the rails. The lift also contains a collapsible support-guide clip mounted on the frame with the ability to adjust its position, and adjustable articulated struts [2].

Installation and maintenance of this lift is simpler and more convenient in comparison with the above counterpart. However, this lift has a complex structure.

The purpose of the invention is to simplify the design of the lift.

This goal is achieved by the fact that in a well-known stepper hoist containing a frame with vertically opposed guide branches, jacks mounted on jack beams, support elements are fixed on the upper parts of the guide branches, sections of load-bearing elements made in the form of rigid spatial structures, having means for connecting them together and forming a vertical row of these elements, jack-up bodies, an intermediate support for lifting and lowering sections of the load their elements and means for connecting these sections with the supporting elements of the guide branches, according to the invention, the intermediate support comprises racks located between the branches of the guide rails, rigidly interconnected in the area of the lower parts by horizontal ties and having removable supporting elements attached to their upper ends for sections of load-bearing elements, jacking bodies contain L-shaped racks located outside the branches of the rails with the possibility of bearing on the jacks with horizontal parts and bearing a platform, rigidly connected to the lower ends of these racks, located between the said branches of the rails and having means for connecting to the horizontal ties of the racks of the intermediate support, while on the branches of the rails mounted elements to prevent displacement of sections of the load-bearing elements in horizontal directions, and jack beams are placed outside of these branches. Due to this, the design of the lift is simplified, while the design of the lift can be further simplified by the fact that, with vertically arranged branches of the rails, a two-branch column of the structure being constructed can be used.

Figure 1 shows the inventive stepper lift, a General view in a perspective view; figure 2 is the same, without a load-bearing element, a General view in a perspective view with a break; in Fig.Z - the same, a top view; figure 4 - scheme of lifting the coating of the four claimed lifts; 5-12 are schematic views of a lift in various stages of one lift cycle.

The step-by-step elevator comprises a frame 1, which includes two opposing branches of guides 3.2 and made in the form of a design two-branch column of the structure to be erected, mounted on the foundations of the column frame 1 jack beams 4. jacks 5, safety devices 6, section load-carrying element .ent 7, supporting elements 8, mounted on the internal parts of the branches

2,3 columns 1, intermediate support 9 and jack-up bodies 10. The intermediate support 9 includes four vertical posts 11 located between the branches of 2,3 columns 1? and, transverse 12 and longitudinal 13 horizontal ties rigidly connecting the lower parts of the vertical posts 11 to each other. The jack-up bodies 10 include four L-shaped vertical posts 14, which are located in front of and behind the branches 2,3 of the column 1 and are rigidly connected to the supporting platform 15 in the nikekey part. The platform 15 is formed by transverse ties 16 connecting the front and rear parts L-shaped struts 14, and longitudinal ties 17 connecting transverse connections 16 and located between the branches 2,3 of the column 1 above the transverse connections 12 of the intermediate support 9. The support 9 and jack-up bodies 10 are made with at least one split connection (to hell, not shown), which makes it possible to mount them on column 1. One of the jack beams 14 is located in front of the front, and the second is behind the rear L-shaped posts 14, while jacks 5 and safety devices 6 are mounted on jack beams 4 under the upper consoles of the 18 L-shaped racks 14. When using the minimum number of jacks 5 and safety devices 6 in the elevator design, two jacks 5 and two safety devices 6 are located in two diagonal planes aa and bb, respectively (Fig. C) . the intersection line of which is the vertical axis of the column 1. Sections 19 of the load-bearing element 7 are made in the form of rigid spatial structures with the possibility of fixation relative to each other from horizontal displacement, for example, by means of vertical pins and corresponding holes (not shown) on the ends of the sections 19 . Moreover, on the branches 2,3 along them, guide elements are fixed. 20, providing sections 19 with the possibility of only vertical movement. In addition, the lift contains three groups of connecting means. The means of the first group are made with the possibility of vertical connection of the lower section 19 of the load-bearing element 7 with the supporting elements 8, for example in the form of consoles 21 mounted on the supporting elements 8 with the possibility of rotation around vertical axes. The means of the second group are made with the possibility of temporary connection of the upper parts of the vertical uprights 11 of the support 9 with the load-bearing element 7, for example, in the form of retractable support elements 22 mounted on the upper parts of the uprights 11 with the possibility of rotation around the vertical axes. The means of the third group are made with the possibility of temporarily connecting the transverse horizontal ties 12 of the support 9 with the longitudinal horizontal ties 17 of the supporting platform 15. for example, in the form of lugs 23 fixed to the links 12 at the points of intersection with the ties 17 with holes for the fingers 24. Grooves are made in the connections 17 for eyes 23 and along the links 17 guide holes for the fingers 24.

The lift works as follows.

At temporary supports (not shown in FIG. 4), a coating unit 25 is assembled and columns 1 of the structure being erected are mounted on the foundations 26. In the lower parts of the columns 1, intermediate supports 9, jack bodies 10, jack beams 4 with jacks 5 and safety devices 6 are mounted on their foundations 26. On the branches of 2,3 columns, supporting 8 and guiding 20 elements are fixed (Fig. 5). then the upper sections 19 of the load-bearing elements 7 are installed on the supporting platforms 15 (FIG. 6) and the block 25 is lifted, the cantilever parts 28 of the crossbars 29 of which are supported by the upper sections 19 when lifting. The block 24 is lifted by each hoist 27 as follows / bodies 10 by means of jacks 5 are moved upward to raise the lower end of the section 19 above the support elements 22 (Fig.7). Then, the supporting elements 22 are deployed and the jacking bodies 10 are lowered until the lower end of the section 19 is supported by the supporting elements 22 and the load is transferred to the intermediate support 9 (Fig. 8). With increased speed, the jacking bodies 10 are lowered to the lower position, in which the fingers 24 connect the transverse links 12 of the support 9 and the longitudinal links 17 of the jacking bodies 10 (Fig. 9), and then the jacking bodies 10 are lifted until the lower end of the section 19 is lifted above the rotary consoles 21 (Fig. 10). Expand the console 21 and lower the jacking bodies 10 to support the lower end of the section 19 on the console 21 and transfer the load through the supporting elements 8 to the lower parts of the branches 2,3 of the column 1. Lower the jacking bodies 10 with the support 9 to the lower position and disconnect the connection 12 and 17, extending the fingers 24 from the holes of the eyes 23. After that, the second section 19 of the load-bearing element 7 is installed on the support platform 15 and its lifting is carried out similarly to the lifting of the upper section

19. Thus, the ascent continues until block 24 reaches the desired height.

Claims (2)

Claim A stepper lift comprising a frame with vertically opposed guide branches, jacks mounted on jack beams, support elements fixed to the upper parts of the guide branches, sections of load-bearing elements made in the form of rigid spatial structures having means for connecting them to each other and the formation of a vertical row of these elements, jacking bodies, an intermediate support for raising and lowering sections of load-bearing elements for connecting these sections with support with the elements of the guide branches, it is important that, in order to simplify the design, the intermediate support comprises racks located between the branches of the guide rails, rigidly interconnected in the lower parts by horizontal ties and attached to their upper the ends of the retractable support elements for sections of load-bearing elements, jack-up bodies contain L-shaped racks placed outside the branches of the rails with the possibility of bearing on the jacks in horizontal parts, And the support platform, rigidly soy spaced with the lower ends of these racks, placed between the said branches of the rails and having means for connecting to the horizontal ties of the racks of the intermediate support, while on the branches of the rails elements are mounted to exclude the displacement of the sections of the load-bearing elements in horizontal directions, and sub-beam beams are placed outside these branches. T '?. U / 22 ^ 7777 ^ 77 /// 7 ^^ * years “ΊΖΣ. 5 FROM Ξ__ ----- Ί . /////////) / ^ //////// 2 /// 2/7 ///////// Fig 12 Compiled by F. Lutsenko Editor T. Kurkova Tehred M. Morgenthal Corrector S. Patrusheva Order 4098 Circulation Subscription VNIIIPI of the State Committee for Inventions and Discoveries under the State Committee for Science and Technology of the USSR 113035, Moscow, Zh-35, Raushskaya nab., 4/5 Production and Publishing Combine Patent, Uzhgorod, 101 Gagarin St.