WO2022037112A1 - Device for high-altitude push and vertical movement for 900t bridge girder erection machine - Google Patents

Abstract

A device for high-altitude push and vertical movement for 900t bridge girder erection machine, composed of a high-altitude carrier assembly (1.1), a locking device (2.1), and an auxiliary support leg stabilizer (3.1). The high-altitude carrier assembly (1.1) is mounted at a three-axis position of the front portion of a 900t beam transport vehicle (18); two sides of the locking device (2.1) are respectively connected to a 900t bridge girder erection machine main beam (19) and the high-altitude carrier assembly (1.1); the auxiliary support leg stabilizer (3.1) comprises a support rod (12) and hinge bases (11) at both ends of the support rod; and each hinged base has one end fixedly connected to a lower cover plate of the 900t bridge girder erection machine main beam (19), and the other end fixedly connected to a secondary telescopic sleeve of an auxiliary support leg of the 900t bridge girder erection machine to form a rigid leg. The present device overcomes the disadvantage of inability of an original 900t bridge girder erection machine to conduct carriage, vertical movement, and transfer between short-distance bridges during intercity concrete beam, special-shaped concrete beam, and special condition constructions due to changes in the cross-section of concrete beams, eliminates the need for disassembly, improves the adaptability of the original 900t bridge girder erection machine to different working conditions, and reduces the construction costs.

Description

A device for high-level jacking and longitudinal movement of a 900t bridge erecting machine technical field

The utility model belongs to the construction equipment for high-speed railway concrete girder construction, in particular to a device used for high-level jacking and longitudinal movement of a 900t bridge erecting machine.

Background technique

With the continuous in-depth development of high-speed railway construction in my country, due to the influence of different design speeds and geology, various special working conditions have been derived: 1. 600t ~ 720t intercity concrete beams and special-shaped concrete beams, due to their cross-sectional dimensions 2. When the 900t bridge erecting machine passes through the working conditions of U-shaped groove beam, platform layer, sleeper beam and so on.

When the above situation occurs, due to the change of the section of the concrete beam, when the bridge erection machine is transported and the temporary outrigger is installed, the action point deviates from the position of the web plate and acts on the position of the cover plate or edge plate. When longitudinally moving through the hole, the track gauge of the trolleys on both sides of the rear outrigger deviates from the action position of the web. At this time, the strength of the concrete beam must be checked and calculated by the design institute before construction. However, in practice, the intercity concrete beam and special-shaped concrete beam Only a small part of the concrete beams can be realized after improvement, and most of them can not pass the inspection and calculation requirements, so the existing functions of the original equipment can no longer realize the functions of 900t bridge deck transport and longitudinal movement through holes.

In addition, when the general concrete girder is erected, the original plan for carrying the 900t bridge erecting machine is shown as: dismantling the rear beam and the trolley of the 900t bridge erecting machine, and installing the temporary outriggers. When the 900t girder truck is in place, it must be reassembled. The entire construction period is about 12-16 days.

Utility model content

The purpose of this utility model is to provide a device for high-level pushing and longitudinal movement of a 900t bridge erecting machine, which avoids the fact that the original 900t bridge erecting machine is used in intercity concrete beams, special-shaped concrete beams, During construction under special working conditions, it is not possible to carry out pack transportation, longitudinal movement and transfer between short-distance bridges, and there is no need for any dismantling. At the same time, the adaptability of the original 900t bridge erecting machine to different working conditions is improved, and the construction cost is reduced.

In order to achieve the above purpose, the technical scheme adopted by the present utility model is: a device for high-level push and longitudinal movement of a 900t bridge erecting machine, which is composed of a high-level piggyback assembly, a locking device and an auxiliary outrigger stabilizer bar; The high-level piggyback assembly is installed at the front three-axis position of the 900t beam transporter, and the two sides of the locking device are respectively connected with the main beam of the 900t bridge erection machine and the high-level piggyback assembly. The hinge seat at both ends of the rod and the strut, one end hinge seat is fixed on the lower cover plate of the main beam of the 900t bridge erecting machine, and the other end hinge seat is fixed on the secondary telescopic sleeve of the auxiliary leg of the 900t bridge erecting machine, forming a rigid support leg.

The high-level piggyback assembly includes two piggyback pads, a rubber block, a piggyback bracket, a lateral adjustment screw and a rubber block limit frame, and the two piggyback pads are respectively installed at both ends of the piggyback bracket, and the rubber The block limit frame is installed above the bolster of the piggyback, and the rubber block is placed in the limiter frame to avoid slipping. Lateral alignment of frame pads.

The piggyback bracket is composed of an upper beam, a diagonal strut, a vertical column and a lower beam, and is connected by a pin shaft to form an integral frame.

The locking device includes an upper hinge seat, an anchor rod, a connecting shaft sleeve and a lower hinge seat, the upper hinge seat is fixed on the main beam of the 900t bridge erecting machine, the lower hinge seat is fixed on the upper beam of the piggyback bracket, and the upper hinge seat is fixed on the upper beam of the piggyback bracket. The hinge seat and the lower hinge seat are respectively connected with the connecting shaft sleeve through the pin shaft, and the anchor rod is connected between the two connecting shaft sleeves.

The anchor rod is provided with left and right-handed external threads, and the connecting shaft sleeve is provided with left and right-handed internal threads.

The utility model has the following advantages and positive effects:

1. The utility model converts the concentrated load generated by the original 900t bridge erecting machine during the loading and longitudinal movement into a nearly uniform load on the axis of the beam transporter 16, which reduces the local compressive stress on the concrete beam surface under the two working conditions. , which can meet the checking requirements of intercity concrete beams, special-shaped concrete beams, and special working conditions, thus solving the problem that the original 900t bridge erecting machine is used in intercity concrete beams, special-shaped concrete beams, and special working conditions due to the change of the cross-section of the concrete beams. During construction, it is impossible to carry out pack transportation, longitudinal movement and transfer between short-distance bridges, and there is no need for any dismantling.

2. The construction period required for the push-through hole of the utility model is 3-4 days, which significantly improves the construction efficiency, reduces the construction cost, and has a wide range of economic and social benefits.

3. The utility model can adapt to the requirements of the construction conditions of U-shaped concrete beams, platform floors and sleeper beams, thereby significantly improving the adaptability of the original 900t bridge erecting machine to different working conditions.

Description of drawings

Fig. 1 is the utility model high-level push, vertical movement schematic diagram;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is the schematic diagram of the utility model high-level piggyback assembly;

Fig. 4 is the side view of Fig. 3;

Fig. 5 is the schematic diagram of the utility model piggyback support;

Fig. 6 is the side view of Fig. 5;

Fig. 7 is the schematic diagram of the locking device of the present invention;

Fig. 8 is the side view of Fig. 7;

FIG. 9 is a schematic diagram of the auxiliary outrigger stabilizer bar of the present invention.

detailed description

As shown in Figures 1, 2 and 9: a device for high-level jacking and longitudinal movement of a 900t bridge erecting machine, which consists of a high-level piggyback assembly 1.1, a locking device 2.1 and an auxiliary leg stabilizer bar 3.1, and is combined with the 900t The 18 beam transporter and the 900t bridge erecting machine jointly complete the functions of high-level jacking and longitudinal movement. The high-level piggyback assembly 1.1 is installed at the front three-axis position of the 900t beam transporter 18, and is temporarily anchored with the beam transporter 18. The two sides of the locking device 2.1 are respectively connected with the main beam 19 of the 900t bridge erecting machine and the high-position pannier assembly 1.1. The auxiliary outrigger stabilizer bar 3.1 includes a strut 12 and hinge seats 11 at both ends of the strut. One end hinge seat is fixed on the lower cover plate of the main beam 19 of the 900t bridge erection machine, and the other end hinge seat is fixed on the 900t bridge erection. Machine-assisted outriggers are placed on the secondary telescopic sleeves to form rigid outriggers.

As shown in Figure 3-6: the high-level piggyback assembly 1.1 includes two piggyback pads 1, eight rubber blocks 2, a piggyback bracket 3, a horizontal adjustment screw 4 and a rubber block limit frame 5. The two piggyback piers are installed on both ends of the piggyback support 3 respectively, the rubber block limit frame 5 is installed above the piggyback pier 1, the rubber block 2 is placed in the limit frame 5 to avoid slippage, and the lead screw 4 is adjusted horizontally. One end is fixed on the piggyback pad 1, and the other end is fixed on the piggyback support 3, so as to realize the horizontal alignment of the piggyback pad 1.

The piggyback bracket 3 is composed of an upper beam 13 , a diagonal strut 14 , a column 15 and a lower beam 17 , and is connected by a pin shaft 16 to form an integral frame.

As shown in Figures 7 and 8: the locking device 2.1 includes an upper hinge seat 6, an anchor rod 7, a connecting shaft sleeve 8 and a lower hinge seat 10. The upper hinge seat 6 is welded to the lower part of the main beam 19 of the 900t bridge erecting machine, and the lower hinge seat 6 The hinge seat 10 is welded on the upper beam 13 of the piggyback bracket 3 , the upper hinge seat 6 and the lower hinge seat 10 are respectively connected to the connecting shaft sleeve 8 through the pin 9 , and the anchor rod 7 is connected between the two connecting shaft sleeves. The anchor rod 7 has left and right-handed external threads, and the connecting shaft sleeve 8 has left and right-handed internal threads.

When the utility model is used for pushing and longitudinal movement, the 900t beam transporter is suspended and lifted, and the high-level piggyback bracket assembly is 900t high, so that the rubber pad on the upper part of the high-level piggyback assembly is supported on the rear support of the 900t bridge-erecting machine. For the main beam part after the leg center distance is 229m, the rear outrigger trolley of the bridge erecting machine is separated from the concrete beam surface (track surface) 20, and the auxiliary outrigger trolley is placed on the lower guide beam 21 of the bridge erecting machine, and the auxiliary outrigger is released for walking. The motor braking device turns the trolley into a driven wheel set, and starts the 900t beam transporter in low gear and pushes the 900t bridge erecting machine longitudinally at a constant speed.

Although the present utility model has been described above, the present utility model is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present invention, many modifications can be made without departing from the purpose of the present invention, which all belong to the protection of the present invention.

Claims (5)

1. A device for high-level push and longitudinal movement of a 900t bridge erecting machine is characterized in that: it is composed of a high-level piggyback assembly, a locking device and an auxiliary leg stabilizer rod; the high-level piggyback assembly is installed on a 900t transport beam The three-axis position of the front part of the vehicle, the two sides of the locking device are respectively connected with the main beam of the 900t bridge erecting machine and the high-level piggyback assembly, and the auxiliary outrigger stabilizer bar includes a strut and a hinge seat at both ends of the strut, and one end hinges. The seat is fixed on the lower cover plate of the main beam of the 900t bridge erecting machine, and the other end hinge seat is fixed on the secondary telescopic sleeve of the auxiliary leg of the 900t bridge erecting machine to form a rigid outrigger.
2. A device for high-level jacking and longitudinal movement of a 900t bridge erecting machine according to claim 1, characterized in that: the high-level piggyback assembly comprises two piggyback pads, rubber blocks, piggyback brackets, Horizontally adjust the lead screw and the rubber block limit frame. Two piggyback piers are installed at both ends of the piggyback bracket. The rubber block limit frame is installed above the piggyback pier, and the rubber block is placed in the limit frame to avoid slippage. , One end of the horizontal adjustment screw is fixed on the bolster of the piggyback frame, and the other end is fixed on the bolster of the piggyback carrier, so as to realize the horizontal alignment of the bolster of the piggyback frame.
3. A device for high-level pushing and longitudinal movement of a 900t bridge erecting machine according to claim 2, wherein the piggyback support is composed of an upper beam, a diagonal strut, a column and a lower beam, and is composed of a pin shaft connected into the overall frame.
4. A device for high-level jacking and longitudinal movement of a 900t bridge erecting machine according to claims 1 and 3, wherein the locking device comprises an upper hinge seat, an anchor rod, a connecting shaft sleeve and a lower hinge seat, The upper hinge seat is fixed on the main beam of the 900t bridge erecting machine, and the lower hinge seat is fixed on the upper beam of the piggyback bracket. connecting anchors.
5. A device for high-level jacking and longitudinal movement of a 900t bridge erecting machine according to claim 4, characterized in that: the anchor rod has left and right-handed external threads, and the connecting shaft sleeve has left- and right-handed threads. Inward thread.

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