A kind of steel tower integral hoisting angle steel jig
Technical field
The utility model relates to transmission line construction technical field, particularly relates to a kind of iron tower of power transmission line integral hoisting angle steel jig.
Background technology
Universal along with large tonnage crane, widely applies crane integral assembly steel tower during iron tower of power transmission line group is vertical, and steel tower is that V-type Guywire tower etc. all adopts integral hoisting.During integral hoisting, adopt steel rope to be connected with iron tower main material take-up strap, steel rope colligation difficulty, easily slides and causes the problems such as the damage of steel tower zinc layer, iron tower main material distortion.
Utility model content
In order to overcome above-mentioned the deficiencies in the prior art; the utility model provides a kind of steel tower integral hoisting angle steel jig; be mainly used to be stuck on the iron tower main material angle steel of hoisting point position; lifting is directly connected on jig with clevis eye with steel rope, is issued to the object of safety and stability lifting in the prerequisite of protection angle steel.
The utility model adopts following technical scheme for achieving the above object: a kind of steel tower integral hoisting angle steel jig, it is characterized in that: this steel tower integral hoisting angle steel jig is comprised of upper card assembly, lower card assembly, movable bolt, clevis eye, upper card assembly, lower card components adopt welding to form, and are provided with 4 movable bolts that are arranged symmetrically with; Be fixed by bolts on card assembly, on upper and lower card assembly, correspondence position is open slot, by movable bolt, connects upper and lower card assembly; On upper card assembly, be provided with a rotating shaft, can, at flexible rotating within the scope of 180 ° of levels, a bolt hole be set in the middle of rotating shaft and connect clevis eye.
Described a kind of steel tower integral hoisting angle steel jig, is characterized in that: described upper and lower card assembly surface arranges respectively MC nylon lining, zinc-plated for the protection of steel tower.
The beneficial effects of the utility model: effectively reduce sling cable and use, avoid the potential safety hazard of answering repeated usage wire rope sling to produce; Alleviated workmen's labour intensity; Avoided due to accidents such as the not firm hanging piece causing of colligation fall, be beneficial to the Occupational Health and Safety that ensures workmen; Reduce steel rope and contact with the direct of iron tower main material, can effectively prevent that steel rope from making the quality problems such as main material distortion, the scuffing of zinc layer after stressed, can improve steel tower installation quality; Due to simple in structure flexible, convenient to use, can be used as the Work tool of emergency repair task, economical and practical, save the duration.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of steel tower integral hoisting angle steel jig;
Fig. 2 is the left TV structure schematic diagram of Fig. 1;
Fig. 3 is the plan structure schematic diagram of Fig. 1.
Wherein: on 1, block assembly, 2 movable bolts, 3 times card assemblies, 4U shape ring, 5 rotating shafts.
[0010] specific embodiment
A kind of steel tower integral hoisting angle steel jig of the present utility model, this steel tower integral hoisting angle steel jig is comprised of upper card assembly 1, lower card assembly 3, movable bolt 2, clevis eye 4, upper card assembly 1, lower card assembly 3 parts adopt welding to form, and are provided with 4 movable bolts that are arranged symmetrically with 2; Be fixed by bolts on card assembly 1, on upper and lower card assembly, correspondence position is open slot, by movable bolt 2, connects upper and lower card assembly; On upper card assembly, be provided with a rotating shaft 5, can, at flexible rotating within the scope of 180 ° of levels, a bolt hole be set in the middle of rotating shaft 5 and connect clevis eye 4.
The upper and lower card assembly surface of described a kind of steel tower integral hoisting angle steel jig arranges respectively MC nylon lining, zinc-plated for the protection of steel tower.
During use, be arranged on iron tower main material angle steel, utilize 4 movable bolts that are arranged symmetrically with to connect upper and lower card assembly.
For guaranteeing to swing in steel tower integral lifting process, cause steel tower integral hoisting angle steel jig to be subject to force direction inconsistent with design, it on, block on assembly a rotating shaft is set, can be at flexible rotating within the scope of 180 ° of levels.In the middle of rotating shaft, a bolt hole is set, is used for connecting clevis eye.Clevis eye is flexible rotating in the vertical direction, thereby has realized freely rotating between upper and lower, left and right.
For the zinc coating of protection iron tower main material, the upper and lower card assembly surface of steel tower integral hoisting angle steel jig arranges respectively MC nylon lining.Not only can protect zinc layer but also can play to sliding effect.
Convenient when applying at the scene, avoid repeated disassembled and assembled bolt, steel tower integral hoisting angle steel jig is to be fixed by bolts on upper card assembly with 4 movable bolts, on upper and lower card assembly, correspondence position is open slot.
Above-mentioned a kind of steel tower integral hoisting angle steel jig, is all to adopt steel material to make, and safety factor is more than 2.5 times.Can according to circuit, lift weight and the main material specification size of steel tower, be processed into the steel tower integral hoisting angle steel jig of different operating load.
The utility model is being used four symmetrical steel tower integral hoisting angle steel jigs of the reliable installation of main angle iron position inside principal post and crosspiece hinge-point.Clevis eye is towards crane direction in place, less if cross-arm angle steel Hoisting Position intersects iron, and during the stressed demand that can not meet integral hoisting, cross-arm is taked reinforcement measure.During installation, upper card assembly 1 is placed on to angle steel outside, lower card assembly 3 is placed on angle steel inner side, with movable bolt 2, connects upper and lower card assembly, and fastening nut above it, is connected firmly upper and lower card assembly.Lifting steel rope is connected in rotating shaft to 5 with clevis eye 4.
In actual field application, the workload of steel tower integral hoisting angle steel jig requires to make according to the maximum of engineering demand, and safety factor requires to be more than or equal to 2.5 times.Generally Ke electric armour clamp manufacturing company processes and tests.
The utility model usage range is to be subject to force direction to rotate up and down 120 °, and must not be lateral stressed, when not meeting this and require, should adjust crane position, guarantees that usage condition meets above-mentioned requirements.