Guide track system for the main material tower of the single limb of helicopter assemblage power transmission line iron tower section
Technical field
The invention belongs to iron towers of overhead power transmission lines vertical construction equipment field, be specifically related to a kind of guide track system for the main material tower of the single limb of helicopter assemblage power transmission line iron tower section.
Background technology
Self-supporting transmission line iron tower (line frame graph that Fig. 1 is certain self-supporting tower) is generally by hundreds of and even the thousands of space truss structures that shaped steel is formed by connecting by bolt or rivet, its cross section is square or rectangle more, and each side is plane frame.Four main rod members of steel tower space truss are called main material, between adjacent two main materials, use oblique material to be connected with horizontal material.Quan Take is divided into multistage, comprises tower leg 11 (the first paragraph truss on basis), tower body 12 (can be divided into multistage truss again) and tower head 13 3 parts from bottom to top.According to factors such as environment for use, form of structure and loading characteristics, the tower section of some iron tower of power transmission line is used single angle steel (to claim single limb main material as main material, as shown in Figure 2 a and 2 b), be that the main material 31 of upper tower segment 21 and the main material 32 of lower tower section 23 are single angle steel, the intersegmental use connecting angle of upper and lower tower (or/and junction plate) 22 connects.
It is vertical that self-supporting tower is generally used split tower erection method to organize.Split tower erection method is that steel tower is split into single, monolithic or single hop, uses that crane gear lifts separately, docking in the air, the vertical a kind of tower erection construction method of group according to the order of sequence.Compare the group towers such as normally used pole, runabout crane, group tower special tower crane and organize tower, going straight up to set tower is the tower erection construction method of a kind of novelty, uniqueness.Use the general process of the main material tower of the single limb section in helicopter assemblage power transmission line iron tower as follows:
(1) by four link position places of tower crane section 42 and tower section 45 in place, a set of guide track system 44 is respectively being installed, and is being connected limit rope 43;
(2) use suspension arrangement 41 by tower crane section 42, to be suspended on helicopter ventral below by what assemble, then by its handling to the top of tower section 45 in place and hovering;
(3) helicopter pilot reduces hover height gradually, makes the guide effect slow decreasing by guide track system 44 by tower crane section 42, enters installation site in place, and now guide track system 44 is for being provided temporary supporting by tower crane section 42;
(4) helicopter unclamps and is flown away from by after being connected of tower crane section, and constructor Deng Ta is used connecting angle (or/and junction plate) to be connected with tower section 45 in place by tower crane section 42, thereby completes the helicopter vertical construction of the main material tower of single limb section.
Compare other group tower, use is gone straight up to set tower and is had the following advantages:
(1) because tower section is assembled on ground, reduced amount of high-altitude operation, safety is good;
(2) do not need group tower and tower material etc. to be transported to steel tower scene in place, alleviated constructor's labour intensity, reduce transport channel simultaneously and opened up and vegetation felling, protected ecological environment, be particularly suitable for the severe place of the construction environments such as high and steep mountains;
(3) group column efficiency is high.
Use is gone straight up to set tower the segmentation weight of steel tower, joint form, joint location etc. is all had higher requirements, and maximum difficult point is how to guarantee that tower section is skyborne accurately, automatic butt, avoid as far as possible manual intervention, guarantee construction safety, efficient, so the docking of tower section is most important with guide rail.
Summary of the invention
The object of this invention is to provide a kind of simple in structure, safe and reliable guide track system, meet the helicopter vertical construction of the main material tower of single limb section in iron tower of power transmission line.
For achieving the above object, the present invention takes following technical scheme:
A kind of guide track system for the main material tower of the single limb of helicopter assemblage power transmission line iron tower section, it is characterized in that: this guide track system comprises guide rail, inner bracket, stopping means and outer bracket, described guide rails assembling is on inner bracket, described inner bracket and outer bracket are all installed in tower section in place, and described stopping means is installed on by tower crane section.
Wherein, described guide rail comprises guide rod, guide rod gusset and base plate I, and described guide rod is connected with guide rod gusset, and the two is welded on base plate I together.
Wherein, the interior bottom of described guide rod is welded with guide rod gusset, on described guide rod gusset, has lightening hole.
Wherein, described guide rod comprises tilting bar and vertical rod, and the angle γ of described tilting bar and plumb line is 25 °~40 °, and the length L of described tilting bar is 600mm~2000mm.
Wherein, described inner bracket comprises horizontal connecting plate, gusset I and side junction plate, and three welds together between two.
Wherein, the horizontal connecting plate of described inner bracket is connected with the base plate I of guide rail, and the side junction plate of described inner bracket is connected with tower section in place.
Wherein, described stopping means comprises junction plate I, launches the wing, riser, gusset II and base plate II, described junction plate I is connected with riser respectively with the expansion wing, described base plate II is welded in the bottom of launching the wing and riser, described gusset II has some, is welded in respectively on riser, between junction plate I and riser and launch between the wing and riser.
Wherein, described junction plate I has two, becomes 90 degree angles welding, described junction plate I with by tower crane section, be connected; The described expansion wing has two, becomes 90 degree angle welding, and every width b that launches the wing is 300mm~1000mm; Described riser has two, its parallel welding and two junction plate I and two afterbodys that launch the wing; On the described expansion wing, have the spacing hole for mounting limit rope.
Wherein, described outer bracket comprises supporting plate, gusset III and junction plate II, and described junction plate II is connected with supporting plate, and described gusset III is welded between junction plate II and supporting plate.
Wherein, the V-shaped structure of described junction plate II, it is connected with tower section in place.
Guide track system for the main material tower of the single limb of helicopter assemblage power transmission line iron tower section of the present invention has following beneficial effect:
(1) the outer bracket of this type guide track system can be by tower crane section the temporary supporting after in place is provided, and itself and inner bracket share the bolt position on steel tower, compact conformation.
(2) each parts of this type guide track system can be formed by angle steel or Plate Welding, and form of structure is simple, convenient processing and manufacture; Between each member and between member and steel tower, use Bolt Connection, it is convenient to install, remove.
(3) this type guide track system can be used for the helicopter vertical construction of the main material tower of single limb section in various steel tower, and its each size can be determined according to conditions such as helicopter pilot's airmanship, landform, meteorologies, applied widely.
Use guide track system of the present invention, can guarantee the safe, accurate, automatic, reliable of the main material tower of single limb section in helicopter assemblage power transmission line iron tower, there is good economic benefit and social benefit.
Accompanying drawing explanation
In order to make content of the present invention by clearer understanding, and be convenient to the description of the specific embodiment, provide accompanying drawing related to the present invention below, be described as follows:
Fig. 1 is the structure line frame graph of certain self-supporting tower, 11-tower leg in figure, 12-tower body, 13-tower head;
Fig. 2 is the connection diagram of the main material tower of single limb section, and wherein Fig. 2 a is the connection layout of the main material tower of single limb section, the partial enlarged drawing that Fig. 2 b is junction, 21-upper tower segment in figure, 22-connecting angle (or/and junction plate), tower section under 23-, the main material of 31-upper tower segment, the main material of tower section under 32-;
Fig. 3 be the main material tower of single limb section go straight up to the vertical schematic diagram of unit, 41-suspension arrangement in figure, 42-is by tower crane section, 43-limit rope, 44-guide track system, 45-tower section in place;
Fig. 4 is composition and the annexation schematic diagram (indicating part key dimension parameter in figure) of guide track system of the present invention, in figure 42-by tower crane section, 45-tower section in place, 51-guide rail, 52-inner bracket, 53-stopping means, the outer bracket of 54-;
Fig. 5 is the structural representation of guide track system middle guide of the present invention, and wherein Fig. 5 a is that front view, Fig. 5 b are that lateral view, Fig. 5 c are top view, 61-guide rod in figure, 62-guide rod gusset, 63-base plate I, 64-lightening hole, 65-bolt hole I, 66-tilting bar, 67-vertical rod;
Fig. 6 is the structural representation of inner bracket in guide track system of the present invention, 71-horizontal connecting plate in figure, 72-gusset I, 73-side junction plate, 74-bolt hole II;
Fig. 7 is the structural representation of stopping means in guide track system of the present invention, and wherein Fig. 7 a is that upper oblique lateral view, Fig. 7 b are declivity lateral view, 81-junction plate I in figure, 82-launches the wing, 83-riser, 84-gusset II, 85-base plate II, 86-bolt hole III, 87-spacing hole;
Fig. 8 is the structural representation of guide track system of the present invention China and foreign countries bracket, 91-supporting plate in figure, 92-gusset III, 93-junction plate II, 94-bolt hole IV.
The specific embodiment
Below in conjunction with accompanying drawing, the guide track system for the main material tower of the single limb of helicopter assemblage power transmission line iron tower section of the present invention is further described in detail.
As shown in Figure 4, guide track system of the present invention comprises guide rail 51, inner bracket 52, stopping means 53 and outer bracket 54 4 parts, guide rail 51 is arranged on inner bracket 52, inner bracket 52 and outer bracket 54 are all installed in tower section 45 in place, stopping means 53 is installed on by tower crane section 42, each parts can be formed by angle steel or Plate Welding above, and form of structure is simple, convenient processing and manufacture; Between each member and between member and steel tower, use Bolt Connection, it is convenient to install, remove.
Guide rail 51 is arranged on inner bracket 52, for guide effect is provided by tower crane section 42 in place.As shown in Fig. 5 a-5c, guide rail 51 comprises guide rod 61, guide rod gusset 62 and base plate I63.Guide rod 61 comprises tilting bar 66 and vertical rod 67 two parts.The interior bottom of guide rod 61 is welded with guide rod gusset 62, and guide rod gusset 62 provides support for guide rod 61, can improve the impact resistance strength and stiffness of guide rod 61; Both are all welded on guide rod 61 and guide rod gusset 62 on base plate I 63, offer for connecting the bolt hole I 65 of inner bracket 53 on base plate I63.As shown in Figure 4, tilting bar 66 can be determined according to helicopter pilot's airmanship and construction environment with the angle γ of plumb line and the length L of tilting bar 66, wherein the span at γ angle is between 25 °~40 °, and the span of length L is between 600mm~2000mm.According to the concrete numerical value of physical dimension, on guide rod gusset 62, have some lightening holes 64, to alleviate guide rail weight, convenient transportation and on-the-spot use.
Inner bracket 52 can be guide rail 51 and provides support, and the impact that guide rail 51 is subject to is passed to tower section 45 in place.As shown in Figure 6, inner bracket 52 comprises horizontal connecting plate 71, gusset I72 and side junction plate 73 3 parts.The front portion of horizontal connecting plate 71 is that triangle, rear portion are rectangle, horizontal connecting plate 71 is provided with the bolt hole II 74 corresponding with bolt hole I 65 positions on base plate I63, uses bolt passing through bolt hole I65 and bolt hole II 74 to guide rail 51 and inner bracket 52 are linked together.The bottom, leg-of-mutton two ends, front portion of horizontal connecting plate 71 is respectively connected with a side junction plate 73, also offers bolt hole II 74 on it, uses bolt that side junction plate 73 is connected with tower section 45 in place; Between horizontal connecting plate 71 and side junction plate 73, be welded with gusset I 72, can improve the impact resistant capability of inner bracket 52.
As shown in Fig. 7 a, 7b, stopping means 53 by its two the junction plate I 81 that become 90 degree angles with by tower crane section 42, be connected, for being provided spacing by the in place of tower crane section.Stopping means 53 comprises junction plate I 81, launches the wing 82, riser 83, gusset II 84 and base plate II 85.Junction plate I 81 has two, becomes 90 degree angles welding, offers bolt hole III86 on junction plate I 81, use bolt by junction plate I 81 with by tower crane section 45, be connected; Launch the wing 82 and have two, become 90 degree angle welding, its width b is definite according to helicopter pilot's airmanship and construction environment, and span is between 300mm~1000mm; Riser 83 has two, the afterbody that it is welded on junction plate I81 in parallel and launches the wing 82; Gusset II 84 has many, be welded on respectively on riser 83, between two junction plate I 81 and riser 83 and two launch, between the wing 82 and riser 83, can improve the impact resistant capability of stopping means.Launch to have spacing hole 87 on the wing 82, by its mounting limit rope, adjacent two expansion wings of quadruplet guide track system can be coupled together, for being provided position-limiting action in larger scope by tower crane section 42; Base plate II 85 is welded on and launches the wing 82 and riser 83 bottoms, after in place by tower crane section 42 by 85 of this base plate II on outer bracket 54.
Outer bracket 54 is for being provided the temporary supporting after in place by tower crane section, as shown in Figure 8, outer bracket 54 comprises supporting plate 91, gusset III 92 and junction plate II 93.Junction plate II 93 is V-shaped, it is connected with supporting plate 91, gusset III 92 is welded between junction plate II 93 and supporting plate 91, junction plate II 93 is provided with bolt hole IV 94, and outer bracket 54 is used bolt to be connected by the bolt hole IV 94 on junction plate II 93 with tower section 45 in place.
According to specific exemplary embodiment, invention has been described herein.It will be apparent under not departing from the scope of the present invention, carrying out to one skilled in the art suitable replacement or revise.Exemplary embodiment is only illustrative, rather than the restriction to scope of the present invention, and scope of the present invention is defined by appended claim.