A kind of method that reduces equipment afterbody slide tail height
Technical field
The present invention relates to the auxiliary facility field of main equipment hoisting and hanging, specifically refer to a kind of method of not having reduction equipment afterbody slide tail height when slipping tail crane lifting technology of using.
Background technology
In equipment hoisting, many hoistings that do not adopt crane slide tail are arranged.When adopting these hoistings, need to roll row or other slide tail apparatus in the setting of equipment afterbody.These devices will be installed on the rotating shaft system and/or anti-dumping system of hinged-support or other version usually.The height of equipment afterbody directly has influence on the height of rotating shaft system and anti-dumping system.The low more installation that helps these facilities more of rotating shaft system and anti-dumping facility, and hoisting process is safe more.But receive the restriction of transport trolley self-unloading height, often treat the self-unloading excessive height of hanging device, the installation of influence slide tail apparatus and lifting safety.
In the prior art, generally adopt two kinds of methods to reduce the equipment tail height.A kind of method is to adopt two cranes to lift equipment level is lifted, and withdraws original saddle, and the saddle of lower height is set then, and equipment laydown on the saddle of lower height, is reduced the equipment integral height.This method needs two cranes to operate, and expense is too high, has lost the cost advantage that does not adopt slide tail crane.Second method is at a certain position of equipment yard to be set, and with the fulcrum of road yard as upset, lifts the head of equipment with main crane, and the equipment yard that detours is rotated, thereby reduces the height of equipment afterbody.Adopt the method for road yard as overturning pivot, the setting of road yard is a difficult point, need senior personnel to be provided with through certain calculating and basis operating experience for many years, and the road yard also built on the sand, has certain operational risk.
Summary of the invention
Technical matters to be solved by this invention be the present situation to prior art provide a kind of simple to operate, safety performance is high and can effectively reduce the method for turning of equipment tail height.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: the method for this reduction equipment afterbody slide tail height is characterized in that comprising the steps:
1. with the reclining housing of equipment to be flipped of the upper end of switching mechanism, switching mechanism is installed on the equipment to be flipped;
2. suspension hook and rigging are set on equipment to be flipped, promote suspension hook and rigging, equipment to be flipped is rotated around switching mechanism, this moment, the height of equipment afterbody to be flipped reduced gradually, up to satisfying the hoisting height requirement;
3. at the equipment afterbody lifting measure is set, after setting finishes, continues to promote suspension hook and rigging, equipment to be flipped is rotated around said lifting measure, treat that hanging device breaks away from switching mechanism gradually; Leave the vertex of switching mechanism when the housing of treating hanging device after, switching mechanism and said device separates to be flipped are left;
Wherein said switching mechanism comprises saddle, cylinder and bearing, and wherein said cylinder can be arranged on the said bearing rotationally, and the perisporium of cylinder is provided with the saddle groove; Said saddle partly is embedded in the saddle groove on cylinder, and saddle is provided with the saddle hanger, and saddle has and treats the upper surface that the hanging device contact portion is suitable; Said bearing is provided with the bearing hanger.
Said saddle roughly is case structure, and the inside of saddle is provided with brace panel.
The part that the bottom surface of said saddle exposes outside said saddle groove is provided with baffle plate, and said baffle plate is near the side of said cylinder.
Also be provided with the cylinder brace panel in the cavity of said cylinder.
The both ends of the surface of said cylinder are provided with stay bearing plate.
Described bearing is up-small and down-big trapezoidal case structure, and the upper surface of bearing is provided with and the suitable roller trough of said cylinder, and said cylinder is embedded in this roller trough.
The perisporium of said cylinder is provided with two baffle plates, and these two baffle plates are respectively near the bearing both ends of the surface and be positioned at outside the said groove.
The method that step is installed to said switching mechanism on the equipment to be flipped in 1. is:
A) upper surface with saddle is fitted on the housing of equipment to be flipped, with the steel wire penetrating saddle hanger on the cucurbit with saddle fixation to equipment to be flipped; Cylinder is embedded in the groove of bearing;
B) mounted cylinder and bearing are pushed the saddle below from the side, saddle is embedded in the saddle groove on the cylinder; Remove cucurbit;
C) end-stopping plate under saddle both sides welding saddle carries out spacingly to saddle, at this moment, switching mechanism is installed on the equipment to be flipped.
For the equipment of different size, after switching mechanism is installed on the equipment to be flipped, possibly have certain gap between the bearing of switching mechanism and the ground, can fill up below said bearing and establish the adjustment steel plate this moment.
Compared with prior art, turning device provided by the present invention can be installed after the equipment self-unloading, and is easy for installation, safe and reliable; The auxiliary power of tipping arrangement derives from main crane, need not increase other whipline, greatly reduces hoisting cost.
Description of drawings
Fig. 1 is the planar structure scheme drawing after the switching mechanism assembling in the embodiment of the invention;
Fig. 2 is the lateral plan of Fig. 1;
Fig. 3 is the front elevation of saddle in the embodiment of the invention;
The left view of Fig. 4 Fig. 3;
Fig. 5 is the cutaway view along A-A line among Fig. 4;
Fig. 6 is the front elevation of embodiment of the invention intermediate roll;
Fig. 7 is the left view of Fig. 6;
Fig. 8 is the cutaway view along B-B line among Fig. 7;
Fig. 9 is the front elevation of bearing in the embodiment of the invention;
Figure 10 is the left view of Fig. 9;
Figure 11 is the cutaway view along C-C line among Figure 10;
Figure 12 is the planar structure scheme drawing after saddle is installed on the equipment to be flipped in the embodiment of the invention;
Figure 13 is switching mechanism in the embodiment of the invention and the planar structure scheme drawing that is installed to rear side viewing direction on the equipment to be flipped;
Figure 14 is the front elevation of Figure 13;
Figure 15 to Figure 17 is each the step scheme drawing in the embodiment of the invention switching process.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
To shown in Figure 11, the switching mechanism in the method for this reduction equipment afterbody slide tail height comprises that 7 comprise saddle 1, cylinder 2, bearing 3 and adjustment steel plate 4 like Fig. 1.Wherein:
Saddle 1 is the part with the housing direct contact of equipment 5 to be flipped; Extremely shown in Figure 5 like Fig. 1; Saddle 1 is body structure, by being welded with the suitable saddle arc of the housing radian of equipment 5 to be flipped 11, two blocks of saddle side plates 12, a saddle base plate 13 and two saddle end plates 14; For improving the structural strength of upset saddle, be welded with the brace panel 15 that polylith and end plate 14 parallel in the casing evenly and at intervals.Two saddle hangers 16 are welded on respectively on the outside face of end plate 14, and the effect of saddle hanger is to use turnbuckle or chain block etc. will overturn saddle fixation on apparatus casing.For preventing to slide before and after saddle is in switching process, improve processing safety, on the outside face on saddle floor 13, be welded with two baffle plates 17.
Cylinder 2 is turning units of switching mechanism, is tubular roughly, and shown in Fig. 1, Fig. 2 and Fig. 6 to 8, arc 21 upper openings, opening part vertically are welded with two frids 24 and a horizontal saddle trough floor 25 constitutes saddle groove 26; For preventing the play of cylinder 2, on the outside face of arc 21, also be welded with two blocks of retaining arc plates 22 at interval; For strengthening the holding capacity of retaining arc plate 22, also can evenly add weldering triangle gusset in the outside of retaining arc plate 22.Saddle trough floor 25 belows are welded with two big end plates 27 respectively at the two ends of arc 21, the saddle trough floor is welded two blocks of small end plates 23 respectively at the two ends of arc more than 25; Promptly adopt the big end plate of 4 blocks of small end plates 23 and 4 27 that cylinder is sealed welding at the two ends of arc 21.In the drum cavity that saddle trough floor 25 and arc 21 are constituted, be welded with cylinder brace panel 29, the bearing capacity of cylinder is further improved, the structure of cylinder brace panel 29 is identical with big end plate 27.Frid 24 after the welding is saddle groove 26 with the space that saddle trough floor 25 is constituted.The middle part of saddle trough floor 25 welding intermediate support plate 28 in drum cavity is to strengthen the bearing capacity of cylinder.Intermediate support plate 28 is perpendicular with cylinder brace panel 29.Saddle is partially embedded in the saddle groove 26 when mounted, constitutes a nested structure, and the baffle plate 17 on the saddle abuts in the outside of retaining arc plate 22.
Bearing 3 is load-carrying elements of whole switching mechanism.To shown in Figure 11, bearing 3 is by being positioned at base arc plate 31 that top radian and cylinder arc 21 match, being centered around base arc plate 31 two base side plates 32 and two base end plates 34 and body structure that base-plate 33 is welded all around like Fig. 1, Fig. 2 and Fig. 9.For improving the bearing pressure of bearing 3, the axis direction along bearing arc plate 31 in the inner chamber of casing has welded the middle riser 35 of a bearing in the centre of base arc plate.Same in order to improve the bearing pressure of bearing 3, can also in the inner chamber of bearing, weld polylith bearing brace panel 36.Bearing brace panel 36 is perpendicular with the middle riser of bearing.On the outside face of base side plate 32, be symmetrically welded with four bearing hangers 37 respectively, bearing hanger 37 both can be used as assembling and had used hanger, also can be used as the hanger of straining usefulness with equipment to be flipped simultaneously, and bearing and ground-surface space are displayed.Cylinder 2 is installed to 3 last times of bearing, two retaining arc plates 22 abut in respectively two base side plates 32 the outside so that bearing 3 and cylinder 2 also nesting be connected, cylinder is played the effect of contraction that prevents play; Cylinder 2 can be rotated under the drive of saddle 1.
Adjustment steel plate 4 is a selected components, mainly is to be used for the bed hedgehopping switching mechanism, fills up the space between base-plate 33 and the bottom surface, thereby makes the saddle ability closed contact of equipment 5 to be flipped and switching mechanism.Adjustment steel plate 4 generally is made up of the several piece steel plate of variable thickness, and size and base plate 33 sizes are suitable.When the height of switching mechanism filled up the space between equipment to be flipped and the bottom surface just, need not adjust steel plate this moment.
To shown in Figure 17, the method that reduces equipment afterbody slide tail height to be flipped is like Figure 12:
1, earlier saddle 1 is abutted on the housing of equipment 5 to be flipped, pass saddle hanger 16 with steel rope and chain block 6 saddle 1 is fixed on the equipment 5 to be flipped.In a side of equipment 5 to be flipped, cylinder 2 and cylinder bearing 3 are fitted together.Shown in figure 12.
2, cylinder 2 and cylinder bearing 3 are pushed in saddle 1 and the ground-surface space from the side, saddle is embedded in the saddle groove 26 of cylinder 2.After adjust the position, remove chain block 6, steel rope is connected on the bearing hanger 37, the pulling chain block lifts whole switching mechanism, selects the adjustment steel plate 4 of suitable thickness that the space between base-plate 33 and the ground is filled up.Remove chain block 6, end-stopping plate 17 under saddle both sides welding saddle, it is spacing that saddle is carried out the left and right sides, and switching mechanism installs.Lateral plan after installing is shown in figure 13, and front elevation is shown in figure 14.
3, the equipment to be flipped that overturns: after switching mechanism 7 installs tail row 8 afterbodys at equipment 5 to be flipped are installed, shown in figure 15, set suspension hook and rigging 9 simultaneously.Accomplish the upset that can reduce the equipment tail height after the above step.Shown in figure 16, promote suspension hook and rigging 9, equipment 5 to be flipped rotates around switching mechanism 7, and equipment 5 tail height reduce gradually, satisfy the requirement for height of lifting up to the height of equipment 5 afterbodys to be flipped.Then tail row 8 is fixed, after fixing the completion, continue to promote suspension hook and rigging 9, equipment 5 to be flipped rotates around tail row 8, and equipment 5 housings to be flipped break away from switching mechanism 7 gradually; Shown in figure 17, after the housing of equipment 5 to be flipped leaves the vertex of switching mechanism 7, can switching mechanism 7 be pulled out from the side, accomplish the operation of whole reduction equipment tail height.
The part that does not relate in the present embodiment is identical with prior art.