CN102765083B - Movable maintenance platform for rotary hook stand of large-scale bridge crane - Google Patents

Abstract

The movable maintenance platform of the hook platform of a large bridge crane of the present invention includes a platform base and a platform panel, and the platform base includes four supporting frames and a plurality of connecting rods, wherein the supporting frame includes a base and a supporting rod, and the supporting rod is vertically arranged on the There are multiple rows of support units arranged at intervals along the vertical direction on the base and the support rods; hanging elbows are arranged at both ends of the connecting rods and the connecting rods are hung on the same row of supporting units of two adjacent support frames through the hanging bends at both ends Two-by-two connection between the support frames is realized, and the four support frames form a square platform base through a plurality of connecting rods, and the platform panel is detachably placed on the platform base. The invention is easy to quickly install, dismantle and carry, can be used repeatedly and has a long service life, can eliminate the difficulty of setting up the platform due to uneven ground, and improve the maintenance efficiency and operation safety of changing movable pulleys.

Description

Movable maintenance platform of hook platform of large bridge crane

technical field

The invention relates to maintenance equipment, more specifically, to a movable maintenance platform for a hook platform of a large bridge crane.

Background technique

With the increasing scale of production in the metallurgical industry and the continuous improvement of technology, the proportion of bridge cranes in the handling of goods is gradually increasing, which promotes the development of cranes with large lifting capacity, high degree of automation and high speed. In recent years, the iron and steel industry has increased a large number of large bridge cranes such as 200T and 225T. Due to the harsh environment, the movable pulley has a short service life and needs to be replaced frequently. When replacing the movable pulley, the height of the operation point from the ground after the hook platform is 2045mm is 2045mm. If there is no maintenance platform, the operation cannot be performed, and the temporary construction of the platform takes a long time and requires a lot of auxiliary time. The currently used maintenance platform needs to lift six steel pipes about 4 meters long from the assembly room to the work site every time it is erected, and then build the platform by welding according to the actual site, which is time-consuming and laborious, and it is not convenient for transportation. The steel pipes used cause different degrees of damage, so that the steel pipes cannot be reused, and the steel consumption is large, which seriously affects the maintenance efficiency of the crane and increases the maintenance cost.

Contents of the invention

In view of the deficiencies in the prior art, one purpose of the present invention is to solve one or more problems in the above prior art.

The object of the present invention is to provide a movable maintenance platform for the hook table of a large bridge crane that is easy to quickly install, dismantle and carry

In order to achieve the above object, the present invention provides a movable overhaul platform for the hook platform of a large bridge crane, the movable overhaul platform includes a platform base and a platform panel, and the platform base includes four support frames and a plurality of connecting rods, wherein, The support frame includes a base and a support rod, the support rod is vertically arranged on the base and the support rod is arranged with multiple rows of support units at intervals along the vertical direction; the two ends of the connecting rod are provided with hanging elbows and the connecting rods are hung through the hanging elbows at both ends. Two-by-two connections between the support frames are realized on the same row of support units of two adjacent support frames, and the four support frames are surrounded by a plurality of connecting rods to form a square platform base, and the platform panels are detachably placed on on the platform base.

According to an embodiment of the movable overhaul platform of the hook platform of a large bridge crane according to the present invention, the support frame further includes a height adjustment unit.

According to one embodiment of the movable overhaul platform of the hook platform of a large bridge crane according to the present invention, the height adjustment unit includes bolts and adjustment nuts, the bolts are welded on the base of the support frame, and the adjustment nuts are sleeved on the bolts for The height of the support rod is adjusted, and the support rod is welded on the mounting nut and is sleeved on the bolt through the mounting nut.

According to an embodiment of the movable maintenance platform of the hook platform of a large bridge crane of the present invention, the support unit is a short pipe or a hook welded on the support rod.

According to one embodiment of the movable overhaul platform of the hook platform of a large bridge crane of the present invention, each row of support units includes at least two support units.

According to an embodiment of the movable maintenance platform of the hook platform of a large bridge crane according to the present invention, the platform panel is formed by splicing a plurality of unit panels.

The invention is easy to quickly install, dismantle and carry, can be used repeatedly and has a long service life, can eliminate the difficulty of setting up the platform due to uneven ground, and improve the maintenance efficiency and operation safety of changing movable pulleys.

Description of drawings

Fig. 1A is a front structural schematic view of the support frame of the movable maintenance platform of the hook platform of a large bridge crane according to an exemplary embodiment of the present invention.

Fig. 1B is a schematic top view of the supporting frame of the movable maintenance platform of the hook platform of a large bridge crane according to an exemplary embodiment of the present invention.

Fig. 1C is a partially enlarged view of Fig. 1A.

Fig. 2A is a schematic front view of the connecting rod of the movable maintenance platform of the hook platform of a large bridge crane according to an exemplary embodiment of the present invention.

Fig. 2B is a partially enlarged view of Fig. 2A.

Fig. 3A is a front structural diagram of the height adjustment unit of the movable overhaul platform of the hook platform of a large bridge crane according to an exemplary embodiment of the present invention.

Fig. 3B is a schematic top view of the height adjustment unit of the movable maintenance platform of the hook platform of a large bridge crane according to an exemplary embodiment of the present invention.

Fig. 3C is a cross-sectional view along line A-A in Fig. 3A.

3D is a schematic diagram of the overall structure of the height adjustment unit of the movable maintenance platform of the hook platform of a large bridge crane according to an exemplary embodiment of the present invention.

Fig. 4 is a schematic diagram of the assembly structure of the movable maintenance platform of the hook platform of a large bridge crane according to an exemplary embodiment of the present invention.

Explanation of reference signs:

1-support frame, 2-support rod, 3-base, 4-support unit, 5-connecting rod, 6-suspension elbow, 7-bolt, 8-adjusting nut, 9-unit plate.

Detailed ways

Hereinafter, exemplary embodiments of the present invention will be described in further detail with reference to the accompanying drawings.

Fig. 4 is a schematic diagram of the assembly structure of the movable maintenance platform of the hook platform of a large bridge crane according to an exemplary embodiment of the present invention. As shown in FIG. 4 , the movable maintenance platform of the hook platform of a large bridge crane in this embodiment includes a platform base and a platform panel, and the platform base includes four support frames 1 and a plurality of connecting rods 5 .

Fig. 1A is a schematic front view of the support frame of the movable overhaul platform of the hook platform of a large bridge crane according to an exemplary embodiment of the present invention, and Fig. 1B is a movable overhaul of the hook platform of a large bridge crane according to an exemplary embodiment of the present invention A schematic top view of the supporting frame of the platform, FIG. 1C is a partial enlarged view of FIG. 1A . Fig. 2A is a schematic front view of the connecting rod of the movable maintenance platform of the hook platform of a large bridge crane according to an exemplary embodiment of the present invention, and Fig. 2B is a partial enlarged view of Fig. 2A. As shown in Figures 1A to 1C, the support frame 1 includes a base 3 and a support rod 2, the support rod 2 is vertically arranged on the base 3 and the support rod 2 is arranged with multiple rows of support units 4 at intervals along the vertical direction, the support frame 1 Mainly as the four legs of the platform base. As shown in Figure 2A and Figure 2B, the two ends of the connecting rod 5 are provided with suspension elbows 6, and the connecting rod 5 is hung on the same row of support units 4 of two adjacent support frames 1 through the suspension elbows 6 at both ends to realize support. The frames 1 are connected in pairs, and the four support frames 1 are surrounded by a plurality of connecting rods 5 to form a square platform base, and the platform panel is detachably placed on the platform base, thereby forming the above-mentioned movable maintenance platform.

Wherein, the supporting unit 4 can be a short pipe or a hook welded on the supporting rod 2, as long as it can support and hang the connecting rod 5.

In this embodiment, the support frame 1 further includes a height adjustment unit, so as to adjust the height according to the actual conditions of the ground on site. Fig. 3A is a schematic front view structural view of the height adjustment unit of the movable overhaul platform of the hook platform of a large bridge crane according to an exemplary embodiment of the present invention, and Fig. 3B is the activity of the hook platform of a large bridge crane according to an exemplary embodiment of the present invention The top view structural diagram of the height adjustment unit of the maintenance platform, Fig. 3C is a sectional view along the A-A line in Fig. 3A, and Fig. 3D is the whole of the height adjustment unit of the movable maintenance platform of the hook platform of a large bridge crane according to an exemplary embodiment of the present invention Schematic. As shown in Figures 3A to 3D, the height adjustment unit of this embodiment includes a bolt 7 and an adjustment nut 8, the bolt 7 is welded on the base 3 of the support frame 1, and the adjustment nut 8 is sleeved on the bolt 7 for adjusting the support rod 2 The height of the support rod 2 is welded on the mounting nut and set on the bolt 7 through the mounting nut, so that the support rod 2 is set on the base 3 through the mounting nut and can be adjusted and positioned by the up and down movement of the adjusting nut 8 high. Wherein, the bolts are M30 bolts with a length of 200 mm, and the adjusting nut 8 and the mounting nut are both M30 nuts, but the height adjusting unit of the present invention is not limited thereto, as long as the height adjustment of the support rod 2 can be realized.

Specifically, the size of the entire movable maintenance platform needs to be designed according to the height behind the hook platform and the lying hook of the on-site surveying and mapping. In this embodiment, the base 3 is made of a steel plate with a thickness of 20 mm and a diameter of 120 mm; the support rod 2 is made of a steel pipe with a length of 2200 mm and a diameter of 48 mm; the support unit 4 is welded with a steel pipe with a length of 100 mm and a diameter of 32 mm It is made on the support rod 2, and the whole support rod 2 is provided with 5 rows of support units 4 at intervals, wherein the distance between the bottom row of support units 4 and the penultimate row of support units 4 is 340mm, and the rest The spacing distance between two rows of support units 4 is 200mm, and each row of support units includes two support units 4 oppositely arranged, but the number of rows, spacing and arrangement of support units are not limited to this; the connecting rod 5 adopts a length of 1980mm , diameter is made of the steel pipe of 42mm, and the steel bar that is 20mm is made the suspension elbow 6 of 90 ° at the two ends of connecting rod 5 with diameter, and the total length of connecting rod 5 is 2080mm. Finally, the prepared support frame 1 and connecting rod 5 are quickly assembled into the platform base of the movable maintenance platform shown in Figure 4, and then the height of the assembled movable maintenance platform is determined according to the height of the hook table, and the height adjustment range is 2300mm～2350mm and the side length of the movable maintenance platform is 2162mm. Finally, a platform panel with a suitable size can be placed on the platform base. In order to facilitate installation, the platform panel can also be spliced by multiple unit boards 9. 2500mm. The above-mentioned dimensions, materials and installation methods of the movable maintenance platform are only preferred embodiments of the present invention, and engineers can choose different sizes, materials and installation methods according to the actual situation on site.

To sum up, the movable maintenance platform of the large bridge crane hook platform of the present invention can be set up quickly and efficiently, and the movable maintenance platform can be reused, which greatly reduces the consumption of steel and welding rods; the movable maintenance platform It can be adapted to various venues, effectively avoiding the platform tilt caused by the venue, and can be quickly disassembled after maintenance.

Although the movable overhaul platform of the large-scale bridge crane hook platform of the present invention has been shown and described above in conjunction with the embodiments, those of ordinary skill in the art will understand that, without departing from the spirit and scope of the present invention defined by the claims Various changes in form and detail could be made herein.

Claims (4)

1. the movable inspection platform of a rotary hook stand of large-scale bridge crane platform, it is characterized in that, described movable inspection platform comprises platform base peace deck plate, platform base comprises four bracing frames and many connecting rods, wherein, bracing frame comprises base and support bar, and support bar is vertically arranged on base and support bar is vertically arranged at intervals with and arranges support unit more, connecting rod two ends are provided with the connection between two of hanging and elbow and connecting rod hang over the same row of adjacent two bracing frames support unit by the suspension elbow at two ends realizing between bracing frame, and four bracing frames surround foursquare platform base by many connecting rods, described platform panel is removably placed on described platform base, support frame as described above also comprises height adjusting unit, described height adjusting unit comprises bolt and adjusting nut, described bolt welding is on the base of bracing frame, adjusting nut is enclosed within bolt for regulating the height of support bar, support bar to be welded on mounting nuts and to be enclosed within bolt by mounting nuts.

2. the movable inspection platform of rotary hook stand of large-scale bridge crane platform according to claim 1, is characterized in that, described support unit is be welded on short tube on support bar or hook.

3. the movable inspection platform of rotary hook stand of large-scale bridge crane platform according to claim 1, is characterized in that, often arranges support unit and comprises at least two support units.

4. the movable inspection platform of rotary hook stand of large-scale bridge crane platform according to claim 1, is characterized in that, described platform panel is spliced by polylith cell board.