CN217711812U - Steel truss sliding device - Google Patents

Abstract

The utility model discloses a steel truss sliding device, which comprises two steel rails, a crane end beam and a jig frame; the two steel rails are arranged in parallel and anchored on a structural surface through a pressing plate; each steel rail is provided with a crane end beam, and wheels of the crane end beam are matched with the steel rails; the steel truss is placed on the jig frame, two ends of the jig frame are fixed on two crane end beams, and the crane end beams drive the jig frame and the steel truss to move along the length direction of the steel rail. The utility model has the advantages that: the utility model relates to a displacement device can ensure that the transportation is taken one's place to safe efficient assembly under different construction environment for the large-span steel construction, can reduce the segmentation of whole pin steel truss again by the at utmost, avoids the destruction of wholeness, reduces the supporting measure when the steel construction is assembled, guarantees construction safety and construction quality, reduces construction cost.

Description

Steel truss sliding device

Technical Field

The utility model relates to a steel construction technical field, concretely relates to steel truss displacement device.

Background

Along with the development of the building industry, large buildings and space buildings gradually become the mainstream of design, and the large-span space steel structure has various forms, so that the space steel structure is more perfect in body form, and the economy and the technicality of the steel structure are well displayed. In the prior construction technology, the hoisting weight of the tower crane is smaller, and the installation requirement of a large-tonnage steel truss is difficult to meet, so that a crane is mostly adopted for hoisting a large-span and large-tonnage steel structure. However, due to the restriction of the construction space, the crane is difficult to hoist in the following narrow construction places; the single-truss main truss has multiple sections, multiple welding points and poor integrity, a large number of support frame bodies are required for welding and assembling, the high-altitude operation amount is large, the potential safety hazard is large, the operation efficiency is low, and the progress is slow.

Therefore, a new hoisting auxiliary structure is needed to be designed, so that the safety of splicing and hoisting of the large-span steel structure is ensured, the subsection of the whole steel truss can be reduced to the greatest extent, and the construction quality is ensured.

Disclosure of Invention

An object of the utility model is to prior art not enough, provide a safe and reliable and can improve the steel truss composite set that slides of truss wholeness.

The utility model adopts the technical proposal that: a steel truss sliding device comprises two steel rails, a crane end beam and a jig frame; the two steel rails are arranged in parallel and anchored on a structural surface through a pressing plate; each steel rail is provided with a crane end beam, and wheels of the crane end beam are matched with the steel rails; the steel truss is placed on the jig frame, two ends of the jig frame are fixed on two crane end beams, and the crane end beams drive the jig frame and the steel truss to move along the length direction of the steel rail.

According to the scheme, the jig frame comprises a jig frame main body and supporting legs arranged at the bottom of the jig frame main body at intervals, the jig frame main body comprises two cross beams and a plurality of longitudinal beams, the two cross beams are arranged in parallel, the longitudinal beams are arranged between the two cross beams at intervals along the length direction of the cross beams, and two ends of each longitudinal beam are connected with the cross beams respectively; the upper ends of the supporting legs are connected with the cross beam or the end part of the longitudinal beam.

According to the scheme, the end beam of the crane comprises an end beam main body, and a motor, a speed reducer and wheels which are arranged on the end beam main body, wherein a motor shaft of the motor is connected with an input end of the speed reducer, an output end of the speed reducer is connected with a wheel shaft of the wheels, and the wheels are driven to walk along the steel rail.

According to the scheme, the end beam of the crane is connected with the end part of the steel truss through the temporary supporting pieces on two sides.

According to the scheme, the pressing plates are arranged on two sides of the bottom of the steel rail at intervals along the length direction and are anchored on the structural surface through anchor bolts.

According to the scheme, one end of the temporary supporting piece is fixed with the lug plate bolt arranged on the steel truss, and the other end of the temporary supporting piece is fixed with the lug plate bolt of the end beam welded on the end beam of the crane.

According to the scheme, the temporary supporting piece is made of I-shaped steel.

According to the scheme, the cross beam, the longitudinal beam and the supporting legs are all made of H-shaped steel.

The beneficial effects of the utility model are that: the utility model relates to a displacement device can ensure that the large-span steel construction is in place in the transportation of assembling of safe efficient under different construction environment, can reduce the segmentation of whole pin steel truss again by the at utmost, avoids the destruction of wholeness, and the support measure when reducing the steel construction and assembling guarantees construction safety and construction quality, reduces construction cost. The utility model is simple in operation, applicable many pin steel trusses in different narrow place, different span and different tonnages slide and take one's place, when guaranteeing construction safety and construction quality, accelerated the construction progress.

Drawings

Fig. 1 is a schematic view of the overall structure of an embodiment of the present invention.

Fig. 2 is a left side view of fig. 1.

Fig. 3 is a schematic view illustrating the installation of the temporary support member according to the present embodiment.

Fig. 4 is a schematic view of the installation of the steel rail in this embodiment.

Fig. 5 is a side view of the end beam of the crane in this embodiment.

Fig. 6 is a front view of the end beam of the crane in this embodiment.

Fig. 7 is a schematic view of the jig frame in the present embodiment.

Fig. 8 is a top view of fig. 7.

Wherein: 1. a steel rail; 2. pressing a plate; 3. an anchor bolt; 4. end beams of the crane; 5. a wheel; 6. a motor; 7. a speed reducer; 8. a jig frame; 9. a support leg; 10. a steel truss; 11. truss ear plates; 12. an end beam ear plate; 13. a temporary support.

Detailed Description

For a better understanding of the present invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings.

The steel truss sliding device shown in figure 1 comprises two steel rails 1, a crane end beam 4 and a jig frame 8; the two steel rails 1 are arranged in parallel and anchored on a structural surface through the pressing plate 2; each steel rail 1 is provided with a crane end beam 4, and wheels 5 of the crane end beams 4 are matched with the steel rails 1; the steel truss 10 is placed on the jig frame 8, two ends of the jig frame 8 are fixed on the two crane end beams 4, and the crane end beams 4 drive the jig frame 8 and the steel truss 10 to move along the length direction of the steel rail 1.

In this embodiment, rail 1 has clamp plate 2 with 5 adaptations of wheel of crane end beam 4, the bottom both sides of rail 1 along length direction interval arrangement, and clamp plate 2 passes through 3 anchors of crab-bolt on the structural plane. In this embodiment, the rail 1 can be the used track of railway, can select different model rails 1 according to steel truss 10 without big or small tonnage, and bearing capacity is strong, and factor of safety is high.

In the embodiment, the end beam 4 of the crane comprises an end beam main body, and a motor 6, a speed reducer 7 and wheels 5 which are arranged on the end beam main body, wherein a shaft of the motor 6 is connected with an input end of the speed reducer 7, an output end of the speed reducer 7 is connected with a wheel shaft of the wheels 5, and the wheels 5 are driven to walk along the steel rail 1; the crane end beam 4 is now well-known in the art and will not be described further here. The end beam 4 of the crane is arranged on the steel rail 1, has high transmission efficiency, small volume and strong load bearing capacity, is provided with a remote control device and is convenient to advance and retreat.

Preferably, the crane end beam 4 is connected to the end of the steel truss 10 by temporary supports 13 on both sides. Specifically, one end of the temporary supporting piece 13 is fixed to a truss lug plate 11 arranged on the steel truss 10 through bolts, and the other end of the temporary supporting piece 13 is fixed to an end beam lug plate 12 welded to an end beam 4 of the crane through bolts, so that a triangular support is formed, and the overall stability is guaranteed. In this embodiment, the temporary supporting member 13 is made of i-steel.

Preferably, the jig frame 8 comprises a jig frame main body and support legs 9 arranged at the bottom of the jig frame main body at intervals, the jig frame main body comprises two cross beams and a plurality of longitudinal beams, the two cross beams are arranged in parallel, the longitudinal beams are arranged between the two cross beams at intervals along the length direction of the cross beams, and two ends of each longitudinal beam are connected with the cross beams respectively; the upper ends of the legs 9 are connected to the cross beams or to the ends of the longitudinal beams.

In the embodiment, the jig frame 8 is welded on the end beam 4 of the crane, and two ends of the jig frame 8 are respectively shorter than two ends of the span of the steel truss 10 by 0.5m; the bottom of the jig frame 8 is provided with a supporting leg 9 every 4m, the height of the supporting leg 9 is 1m, and a backing plate is padded below the sliding front supporting leg 9 and used for supporting the steel truss 10; the cross beam, the longitudinal beam and the supporting leg 9 in the jig frame 8 are made of 200H-shaped steel.

In a narrow space, the large-span and large-tonnage steel truss 10 can be slid to be in place and welded in sections by the following method. A steel truss slipping and positioning method comprises the following steps:

step one, designing and manufacturing the steel truss sliding device according to a design drawing of a steel truss 10. The manufacturing method of the steel truss sliding device comprises the following steps:

(1) And calculating the required length, number and type of the steel rails 1 according to the positioning and tonnage of the steel truss 10 on the design drawing.

(2) And designing the position of each steel rail 1 according to the span and the segmentation position of the steel truss 10 on the design drawing.

(3) And the steel rail 1 is arranged on the structural surface. Specifically, pressing plates 2 are arranged on two sides of a steel rail 1 every 0.5m, and the rail pressing plates 2 are fixed on a structural surface by adopting chemical anchor bolts so that the steel rail 1 is tightly attached to the structural surface; if the structural surface is not flat and has gaps, the steel plate is used for flattening.

(4) And mounting the end beam 4 of the crane on the steel rail 1. Specifically, the wheels 5 of the end beam 4 of the crane are clamped on the steel rail 1.

(5) And designing the length of the jig frame 8 according to the span of the steel truss 10 on the design drawing, so that two ends of the jig frame 8 are respectively shorter than two ends of the span of the steel truss 10 by 0.5m. In this embodiment, the jig frame 8 is made of 200H-shaped steel, the supporting legs 9 are arranged at intervals of 4m, and the height of each supporting leg 9 is 1m.

(6) The jig frame 8 is arranged on the end beam 4 of the crane and is welded firmly; and a space of 0.2m is kept between the supporting leg 9 of the jig frame 8 and the structural plane, and the manufacturing of the steel truss sliding device is completed.

And step two, trial sliding is carried out on the manufactured steel truss sliding device, the performances of a motor 6 and a speed reducer 7 of an end beam 4 of the crane are checked, and whether a larger gap can be kept between a suspended supporting leg 9 and a structural plane within a rail sliding range or not is judged.

And step three, fixing the steel truss sliding device in a lifting range, setting steel plates below the supporting legs 9, lifting the first steel truss 10 on the jig frame 8 section by section, and assembling and welding the steel truss 10.

Step four, mounting a temporary support piece 13: after the steel truss 10 is welded, end beam ear plates 12 are welded to two ends of an end beam 4 of the crane respectively, one end of a temporary supporting piece 13 is fixed with a truss ear plate 11 on the upper chord of the steel truss 10 through bolts and/or anchor bolts 3, the other end of the temporary supporting piece 13 is fixed with the end beam ear plate 12 at the end of the end beam 4 of the crane through bolts and/or anchor bolts 3, a triangular support is formed, and stability of a sliding process is guaranteed.

And step five, after the temporary supporting piece 13 is reinforced, removing the base plate at the bottom of the supporting leg 9 to suspend the supporting leg 9, and transmitting the whole load of the first steel truss 10 to the end beam 4 of the crane.

Step six, starting an end beam 4 of the travelling crane to move along the steel rail 1, and sliding the first truss in place at the sliding speed of 4 meters per minute; after the first steel truss 10 reaches the set position, the end is slowly jacked up for 0.02m by using a jack, a 200H-shaped steel stirrup is plugged in, the temporary support piece 13 is removed, and the steel truss 10 is separated from the jig frame 8.

And seventhly, dismantling the steel truss sliding device, returning the end beam 4 of the travelling crane to the sliding starting point, re-arranging steel plates on supporting legs 9 of a jig frame 8, hoisting and welding the next steel truss 10, and sliding one by one until all the steel trusses 10 are slid in place.

Finally, it should be noted that the above is only a preferred embodiment of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that the technical solutions described in the foregoing embodiments can be modified or part of the technical features can be replaced equally, but any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A steel truss sliding device is characterized by comprising two steel rails, a crane end beam and a jig frame; the two steel rails are arranged in parallel and anchored on a structural surface through a pressing plate; each steel rail is provided with a crane end beam, and wheels of the crane end beam are matched with the steel rails; the steel truss is placed on the jig frame, two ends of the jig frame are fixed on two end beams of the crane, and the end beams of the crane drive the jig frame and the steel truss to move along the length direction of the steel rail.

2. The steel truss sliding device according to claim 1, wherein the jig frame comprises a jig frame main body and support legs arranged at the bottom of the jig frame main body at intervals, the jig frame main body comprises two cross beams and a plurality of longitudinal beams, the two cross beams are arranged in parallel, the longitudinal beams are arranged between the two cross beams at intervals along the length direction of the cross beams, and two ends of each longitudinal beam are respectively connected with the cross beams; the upper ends of the supporting legs are connected with the cross beam or the end part of the longitudinal beam.

3. The steel truss sliding device according to claim 1, wherein the end beam of the crane comprises an end beam main body, and a motor, a reducer and wheels which are arranged on the end beam main body, wherein a motor shaft of the motor is connected with an input end of the reducer, an output end of the reducer is connected with a wheel shaft of the wheels, and the wheels are driven to run along the steel rail.

4. The steel truss skid of claim 1 wherein said crane end beam is connected to the end of the steel truss by temporary supports on both sides.

5. The steel truss slip arrangement of claim 1 wherein pressure plates are spaced lengthwise on both sides of the bottom of the rail, the pressure plates being anchored to the structural surface by anchor bolts.

6. The steel truss sliding device according to claim 4, wherein one end of the temporary supporting member is bolted to an ear plate provided on the steel truss, and the other end of the temporary supporting member is bolted to an end beam ear plate welded to an end beam of the crane.

7. A steel truss skid device as defined in claim 4 wherein said temporary support members are made of I-steel.

8. The steel truss skid of claim 2, wherein the cross beams, the longitudinal beams and the legs are made of H-shaped steel.

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