CN206940274U - The bearing device of bridge crane door frame entablature lifting - Google Patents

Abstract

The utility model discloses a kind of bearing device of bridge crane door frame entablature lifting, it is to overcome existing bridge crane because structural change makes the entablature of its door frame shorten, existing two joist is not held up and hang what the shortcomings that pulling on crossbeam provided.On the bottom surface at entablature both ends, the relative truss girder of the identical inner termination of two root architectures is placed with along entablature length direction, each external end head bottom is provided with the sleeve of set wire line thimble to truss girder, and steel wire rope is corresponding was provided with grooving with lifting on the side elevation of the external end head；The relative the inner of truss girder above, is connected to entablature bottom surface.Because truss girder is oppositely arranged along entablature length, its external end head can be such that two pairs of steel wire ropes are lifted beyond the length of entablature, its inner termination also can support entablature, therefore using after the device, the constant entablature for also adapting to shorten in lift cylinder position at top, so as to solve the problems, such as the drawing of hanging of entablature, that has also widened fixed lifting oil cylinder hangs drawing scope.

Description

The bearing device of bridge crane door frame entablature lifting

Technical field

The utility model belongs to lifting device, specifically a kind of bearing device of hoisting crane door frame entablature.

Background technology

The complete machine gross weight of bridge crane is about more than 1600 tons, and its gauge is big, forward and backward out reach length, whole height Height, when making the integral installation of crane, work high above the ground has very big technical difficulty and a construction risk, typically takes during installation It is to assemble the component of each several part on ground, then carries out lifting assembly, so can both ensure integrally-built precision, and can Ensure construction safety.

The door frame of bridge crane both sides is as shown in figure 1, be that the both ends of entablature 1 and sill 3 are connected into two respectively The upper and lower side of root post 2 combines.During connection, the left end 1.1 and right end 1.2 of entablature 1 distinguish corresponding two The interior facade of the upper end of column 2 is relatively fixed.

At present, when lifting entablature 1 as shown in Figure 2 and Figure 3, the bottom of the left and right ends of entablature 1 is vertically ridden over two On the joist 4 of root lifting, 5.1 sets of the becket bridle of four lower ends of steel wire rope 5 is hung on the setting sleeve 4.2 of the termination bottom surface of joist 4, Then respectively by respective side erect cross grooving 4.3 guide to joist more than 4, until with each self-corresponding lift cylinder in top Connection.Lift cylinder lifts steel wire rope 5 upwards, and the entablature 1 on joist 4 is taken to after installation site and is fixed on column 2.By Fixed in the position of four lift cylinders, so the relative position after four steel wire ropes 5 are sagging is also fixed.

The progress of technology makes the structure of equipment constantly update, and at present, the structure of the bridge crane is changed Become, the door frame after renewal narrows, and the length of entablature 1 lifted by crane also just shortens, and relative due to four steel wire ropes 5 Position does not become, so when lifting entablature 1, if slinging entablature to existing mode and existing two joists 4 support 1, the both ends of entablature 1 can not just take joist 4 completely above, be easy to occur entablature 1 when so hanging drawing from joist 4 The danger to come off.

If because the length of entablature 1 shortens to change the position of lift cylinder, not only improvement cost is big, long in time limit, and If structure from now on changes just and can not used again.

How existing four lift cylinders position drive four positions of steel wire rope 5 it is constant in the case of, by length The entablature 1 to shorten, which is hung, moves installation site to, is to need to solve the problems, such as at present.

Utility model content

Technical problem to be solved in the utility model is to overcome existing bridge crane because structural change makes its door frame Entablature shortens, and can not hang the shortcomings that pulling on crossbeam using existing two joists, there is provided horizontal on a kind of bridge crane door frame The bearing device of beam lifting.

In order to solve above mentioned problem existing for prior art, the utility model is realized using following technical proposals： The bottom surface of horizontally disposed entablature beam body two ends, there are two root architecture identical brackets along entablature length direction is staggered relatively Beam, below the respective external end head of truss girder, it is respectively equipped with the perpendicular of the fixation deadeye concentric with existing lifting steel wire rope Vertical sleeve, on the side elevation of two truss girder external end heads, vertical be provided with crosses grooving by sleeve centerline；Two relative truss girders Above inner termination, it is respectively and movably connected on each self-corresponding entablature bottom surface.

The utility model also has following technical characteristic：

Connection above the truss girder inner termination with entablature bottom surface, it is on two truss girder opposing inner ends, respectively Provided with can undersetting corresponding with the upper bracket on the entablature bottom surface, bearing pin is rotationally through the correspondence of upper and lower two bearing In lug plate holes；

Between external end head and entablature, it is respectively equipped with two of two truss girders when the upper bracket is connected with undersetting Afterwards, entablature is made to be in the cushion block of horizontality；

The setting of surface sleeve under the external end head of two opposing brackets beam beam body, it is on two external end head, respectively Extend laterally provided with the lower planes along truss girder and " C " shape connector with opening, the sleeve are separately positioned on " C " shape On the bottom surface of two pawls of connector；

The setting of undersetting above the two truss girders inner termination, it is in two inner termination, is respectively equipped with along support The lower planes set a roof beam in place extend to inner side and " C " shape connector with opening, two undersettings are separately positioned on " C " shape connector Two pawls above；

The truss girder is hollow beam, and empty position is provided with multiple stiffener plates wherein.

The advantages of the utility model and good effect are, because above-mentioned two relative truss girders are along entablature length side To setting, two corresponding external end heads can make four lifting steel wire ropes, and two is relative beyond the length of entablature beam body Inner termination be flexibly connected with the bottom corresponding points of entablature, in the case of constant four steel wire rope positions, by existing support Drawing is hung in beam lateral support below entablature both ends, is changed to two truss girders and is set along the length direction below entablature both ends, By the both ends support of every truss girder, although entablature shortens, but becket bridle is covered below two truss girders at the both ends of entablature Sleeve portion does not become, therefore still can lifting truss girder drive entablature using the steel wire rope of existing four lift cylinders connection In place, solve the problems, such as not slinging using existing bearing device shorten after entablature, also widened and carried at four significantly In the case that oil-lifting jar position is constant, the use range of this bearing device lifting different lengths crossbeam is used.

Brief description of the drawings

When Fig. 1 is assembles bridge crane door frame, the schematic diagram of existing entablature device is installed；

Fig. 2 is that the structure that existing entablature device is lifted in Fig. 1 amplifies schematic front view；

Fig. 3 is Fig. 2 top views；

Fig. 4 is the schematic front view of the utility model support entablature device；

Fig. 5 is Fig. 4 top view；

Fig. 6 is the schematic front view of truss girder in Fig. 4；

Fig. 7 is Fig. 6 top view.

Embodiment

Below in conjunction with the accompanying drawings and embodiment the utility model is described in further detail.

In Fig. 1, the door frame of bridge crane both sides by entablature 1 and sill 3 as shown in figure 1, be connected to two respectively The upper and lower of column 2 combines, i.e. the left end 1.1 of entablature 1 and right end 1.2 is corresponding with the upper end of two heel post 2 respectively Interior facade docking is fixed.During existing support lifting entablature 1, the entablature 1 is respectively perpendicular be mounted in as shown in Figure 2 and Figure 3 Above two parallel both ends of joist 4, four steel wire ropes 5 being connected with the lift cylinder on top, 5.1 sets of the becket bridle of its lower end It is hung on the setting sleeve 4.2 of the bottom surface of joist 4（Referring to Fig. 2, Fig. 3）, steel wire rope 5 respectively pass through the two ends of joist 4 erect Grooving 4.3 of crossing guide to more than the two ends of joist 4, and be connected with each self-corresponding lift cylinder in top, four lift cylinders generals Four suspension centres of two joists 4 synchronously above carry, and behind position of the entablature 1 to its installation, are fixedly connected i.e. with the column 2 at both ends Can.

In Fig. 4, Fig. 5, because renovating for equipment makes that door frame narrows i.e. entablature 1 and 3 liang of sill shortens, upward During lifting lifting entablature 1, because the left and right ends of entablature 1 inside contract, its both ends can not be all ridden on existing joist 4, So hang the danger drawn and be easy to fall off.And mode used by the utility model, it is in the horizontally disposed beam of entablature 1 The bottom surface at body both ends, two mutually isostructural truss girders 6 are relatively set with along the length direction of entablature 1, in the correspondence of two truss girder 6 Respective external end head below, with it is existing lifting the concentric setting set for being respectively equipped with the fixed lower end becket bridle 5.1 of steel wire rope 5 of steel wire rope 5 Cylinder 6.2（Referring to Fig. 6, Fig. 7）；On the side elevation of the external end head of two truss girder 6, vertical be provided with is restricted by crossing for the center line of sleeve 6.2 Groove 6.3, the steel wire rope 5, which passed through grooving 6.3, to be guided to the top of truss girder 6 and is connected on lift cylinder.Two truss girders 6 are relative Above inner termination, it is respectively and movably connected on each bottom surface of self-corresponding entablature 1.

Two truss girders 6 and the connection of the bottom surface of entablature 1, are above the opposing inner end head of two truss girder 6, set respectively Have can undersetting 6.1 corresponding with the existing upper bracket 1.3 of the bottom surface of entablature 1, bearing pin 7 is rotationally through two bearings pair Connected in the lug plate holes 6.11 answered.

After the upper bracket 1.3 and undersetting 6.1 connect, plane and the lower of entablature 1 are put down on the external end head of truss girder 6 There have been neutral gear between face, want to make entablature 1 be in horizontality, it is necessary to the external end head of truss girder 6 and entablature 1 it Between increase cushion block 8.

So, during the outer end for the two relative truss girder 6 of the lifting of steel wire rope 5 being connected on lift cylinder, due to truss girder 6 Inner termination is connected on the bottom surface of entablature 1, the common support in both ends of truss girder 6 is played entablature 1, securely and reliably.

In order to when slinging entablature 1 with truss girder 6, because the external end head of truss girder 6 is grown so that the pars intermedia of two ends Position is limited and can not passed through by the inner side of two column 2 of door frame（Referring to Fig. 4, Fig. 5）, therefore by the sleeve of the bottom surface of truss girder 6 6.2, it is arranged on below " C " the shape connector prolonged on the outside of the lower planes of the suitable truss girder 6 of the external end head of 6 beam body of truss girder two, " C " The outward opening of shape connector, the neutral gear of opening just avoid column 2, and sleeve 6.2 is arranged on two pawls 6.6 of " C " shape On bottom surface（Referring to Fig. 7）, the up and down of such truss girder 6 be just no longer obstructed.

In order to mitigate weight and save raw material, the setting of the undersetting 6.1 above the inner termination of two truss girder 6, it is In the inner termination of two truss girder 6, the lower planes being respectively equipped with along truss girder 6 connect to " C " shape that relative inner extends Junctor, two openings are relative, and two undersettings 6.1 are separately positioned on above two " C " shape pawls 6.4.

In order to reduce the weight of truss girder 6 and can guarantee that its intensity used, the truss girder 6 is set to hollow beam, Its hollow part is provided with multiple stiffener plates 6.5.

The outer end of above-mentioned two truss girders 6 can distinguish two outer ends of support entablature 1, the opposing inner end of truss girder 6 because with The ground connection of entablature 1, also functions to the effect of support.Hang when pulling on crossbeam 1, the becket bridle 5.1 of the lower end of steel wire rope 5 is enclosed on bracket The outside of sleeve 6.2 below beam 6, steel wire rope 5 are guided to from the grooving 6.3 excessively of the two ends of entablature 1 and oil cylinder are lifted corresponding to top On, two truss girders 6 are driven the level of synchronization of entablature 1 to hang to installation position, so, existing by lifting oil cylinder by steel wire rope 5 In the case that some lifting oil cylinder positions are constant, using above-mentioned truss girder 6 hang pulling-down it is short after entablature 1 just have no problem.

Change the structure and lifting mode of support beam, the position than changing lifting oil cylinder draws part dimension will to adapt to be hung It is much easier, and the drawing of hanging for also accommodating different length part beams is required, drawing is hung so as to widen existing lifting oil cylinder significantly The use range of beam.

Above-described embodiment is only the indicative explaination carried out to the utility model, is not unique technical scheme.It is every The modification carried out using the technical solution of the utility model by purport or equivalent substitution, in the scope of protection of the utility model Within.

Claims (6)

1. A kind of 1. bearing device of bridge crane door frame entablature lifting, it is characterised in that：In horizontally disposed entablature beam The bottom surface of body two ends, there are a two root architecture identical truss girders along entablature length direction is staggered relatively, it is respective in truss girder Below external end head, the setting sleeve of the fixation deadeye concentric with existing lifting steel wire rope is respectively equipped with, in two truss girders On the side elevation of external end head, vertical be provided with crosses grooving by sleeve centerline；Above two relative truss girder inner terminations, respectively It is movably connected on each self-corresponding entablature bottom surface.
2. 2. the bearing device of bridge crane door frame entablature lifting as claimed in claim 1, it is characterised in that：The bracket It is on two truss girder opposing inner ends, being respectively equipped with can be with the upper horizontal stroke with the connection of entablature bottom surface above beam inner termination Undersetting corresponding to upper bracket on soffit, bearing pin are rotationally through in the corresponding lug plate holes of upper and lower two bearing.
3. 3. the bearing device of bridge crane door frame entablature lifting as claimed in claim 2, it is characterised in that：In two brackets Two of beam are respectively equipped with after the upper bracket is connected with undersetting between external end head and entablature, entablature is in water The cushion block of level state.
4. 4. the bearing device of bridge crane door frame entablature lifting as claimed in claim 1, it is characterised in that：Described two The setting of surface sleeve under the external end head of opposing brackets beam beam body, it is on two external end head, is respectively equipped with along the upper of truss girder Lower plane extends laterally and " C " shape connector with opening, the sleeve are separately positioned on two pawls of " C " shape connector On bottom surface.
5. 5. the bearing device of bridge crane door frame entablature lifting as claimed in claim 4, it is characterised in that：Two support The setting of undersetting above inner termination of setting a roof beam in place, be in two inner termination, be respectively equipped with lower planes along truss girder to Inner side extends and " C " shape connector with opening, two undersettings are separately positioned on above two pawls of " C " shape connector.
6. 6. the bearing device of bridge crane door frame entablature lifting as claimed in claim 1 or 2, it is characterised in that：It is described Truss girder is hollow beam, and empty position is provided with multiple stiffener plates wherein.