A multifunctional lifting device for lifting steel bar parts

Abstract

The present invention relates to the technical field of bridge construction structures, and specifically refers to a multifunctional hoist for hoisting steel bar components. It comprises a main load-bearing frame; a plurality of slideways are arranged on the main load-bearing frame; the slideways are arranged circumferentially along the main load-bearing frame with the midpoint of the main load-bearing frame as the center, and a plurality of slideways surround to form an annular structure corresponding to the cross section of the main tower; the slideway is a guide rail movably connected to the main load-bearing frame along the radial direction of the main load-bearing frame, and a plurality of connectors for hanging steel bar components are arranged on the slideway; the connector is a hanging connection point movably connected to the slideway along the length direction of the slideway. The present invention has a simple structure, can adapt to the hoisting construction of steel bar components of main tower cross sections of different sizes and shapes, and the adjustment method is extremely simple, which greatly improves the efficiency and safety of hoisting steel bar components, and has great promotion value.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction structures, and in particular to a multifunctional hoisting device for hoisting steel bar components. Background Art

[0002] During the construction of the main tower of the bridge, in some cases the cross section of the main tower is not completely regular, and the cross-sectional structure changes with the elevation of the main tower. In this type of main tower construction process, the steel bars are constructed in parts, and all the steel bars are tied as a whole in the factory, and then transported to the main tower, where the steel bars are hoisted as a whole to the main tower for installation. During the overall hoisting process, if the hoisting is carried out according to conventional hoists, it is necessary to constantly replace the hoisting tools suitable for the cross-sectional structure in order to carry out the hoisting construction. Such a construction method is obviously undesirable, the construction is difficult, and the cost of hoisting tool manufacturing is also extremely high, which is not conducive to the construction of the entire main tower. Summary of the invention

[0003] The purpose of the present invention is to solve the deficiencies of the above-mentioned background technology and provide a multifunctional lifting device for lifting steel bar components.

[0004] The technical solution of the present invention is: a multifunctional hoist for lifting steel bar components, characterized in that: it includes a main load-bearing frame; a plurality of slideways are arranged on the main load-bearing frame; the slideways are arranged circumferentially along the main load-bearing frame with the midpoint of the main load-bearing frame as the center, and a plurality of slideways are surrounded to form an annular structure corresponding to the cross-section of the main tower; the slideway is a guide rail that can be movably connected to the main load-bearing frame along the radial direction of the main load-bearing frame, and a plurality of connectors for hanging steel bar components are arranged on the slideway; the connector is a hanging connection point that can be movably connected to the slideway along the length direction of the slideway.

[0005] Furthermore, the main load-bearing frame is provided with a fixing structure for fixing the slideway after the slideway adjustment is completed.

[0006] The fixing structure further comprises a precision-rolled threaded steel bar inserted into the slideway; the precision-rolled threaded steel bar passes through the slideway in the radial direction of the main load-bearing frame, and both ends of the precision-rolled threaded steel bar are respectively anchored and connected to the fixing seats on the main load-bearing frame.

[0007] Furthermore, a shielding structure for shielding the casting section of the main tower is arranged at the upper end of the main load-bearing frame.

[0008] The shielding structure further includes a unloading platform arranged on the main load-bearing frame; the unloading platform includes a fixed platform fixed on the slide and a sliding platform movably connected to the fixed platform along the length direction of the slide; the sliding platform is connected to the fixed platform on both sides along the circumferential direction of the main load-bearing frame to form a platform structure with the fixed platform for shielding the main tower casting section.

[0009] Furthermore, a hoisting structure for hoisting the inner template of the main tower is provided at the lower end of the main load-bearing frame.

[0010] The hoisting structure further includes a track fixed at the lower end of the main load-bearing frame; the track is a guiding structure arranged along the axial direction of the main load-bearing frame, and multiple tracks are surrounded to form a ring structure corresponding to the inner template of the main tower; the track is provided with an electric hoist that can slide along the length direction of the track.

[0011] Furthermore, the main load-bearing frame is a single-layer truss structure formed by multiple steel sections cross-connected vertically and horizontally.

[0012] The advantages of the present invention are as follows: 1. A slideway that can move along the radial direction of the main load-bearing frame is arranged on the main load-bearing frame, and a connector that can move along the length direction of the slideway is arranged on the slideway. The slideway is arranged around to form a ring structure corresponding to the cross section of the main tower. The connector is arranged along the slideway to form a hanging connection point covering the entire cross section of the main tower. The movable slideway and the connector can be adjusted according to the shape of the cross section of the main tower, and can meet the requirements of various cross-sectional specifications. It has a wide range of applications, is easy to adjust, and has great promotion value.

[0013] 2. By setting a fixed structure on the main load-bearing frame, the slideway after adjustment is fixed to avoid the problem of the lifting point position being offset due to the sliding of the slideway during the later lifting process, thereby improving the stability and safety of the entire lifting device structure;

[0014] 3. The slideway can be easily fixed by the matching structure of the fine-rolled threaded steel and the fixing seat. The fixing method is simple. The fine-rolled threaded steel can stably position the slideway on the main load-bearing frame to avoid shaking, thereby improving the stability and safety of the entire structure.

[0015] 4. By setting up a material unloading platform on the main load-bearing frame, the material unloading platform can shield the pouring position of the main tower section, prevent the poured concrete from being exposed to the sun and rain, and improve the efficiency of concrete maintenance. In addition, the material unloading platform can also be used as a working platform for the pouring construction process;

[0016] 5. Through the combined structure of the sliding platform and the fixed platform, the fixed platform itself can follow the slide to adjust its radial position, and the sliding platform can move along the length direction of the slide, that is, it can adjust its position along the axial direction. The annular platform structure formed in this way can adapt to the main tower sections of various sizes and has good versatility;

[0017] 6. By opening feeding holes on the fixed platform and the sliding platform, the annular structure formed by the fixed platform and the sliding platform can be combined to form a feeding platform, which is convenient for the pouring construction of the entire main tower;

[0018] 7. By setting up a hoisting structure on the main load-bearing frame, it is convenient to control the inner template of the main tower. Due to the obstruction of the hoisting equipment, the inner template is not easy to hoist. By setting up a hoisting structure on the main load-bearing frame, this problem is solved. The hoisting structure on the main load-bearing frame is relatively simple, and no large hoisting equipment is required, so the construction cost is lower.

[0019] 8. By installing a track at the lower end of the main load-bearing frame, an electric hoist that can move along the length of the track is installed on the track. The track itself is arranged along the circumference of the main load-bearing frame, forming a ring structure around the installation position of the inner template corresponding to the main tower section. The electric hoist adjusts its position along the track according to the hoisting position of the inner template, making adjustment and hoisting extremely convenient.

[0020] The present invention has a simple structure, can adapt to the hoisting construction of steel bar components of main tower cross sections of different sizes and shapes, has an extremely simple adjustment method, greatly improves the efficiency and safety of hoisting of steel bar components, and has great promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 : Front view of the sling structure of the present invention;

[0022] Figure 2 : A side view of the sling structure of the present invention;

[0023] Figure 3 : Schematic diagram of the connection structure between the fixed platform and the sliding platform of the present invention;

[0024] Figure 4 : A top view of the blanking platform of the present invention;

[0025] Among them: 1—main load-bearing frame; 2—slideway; 3—connector; 4—finely rolled threaded steel; 5—fixed seat; 6—fixed platform; 7—sliding platform; 8—track; 9—electric hoist; 10—unloading hole. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 4 A multifunctional lifting device for lifting steel bar parts. The lifting device of this embodiment includes a main load-bearing frame 1, which is a single-layer truss structure formed by multiple steel sections connected vertically and horizontally. Figure 4 As shown, the main load-bearing frame 1 of this embodiment is a frame structure formed by staggered arrangement of two longitudinal beams and two transverse beams. After the main load-bearing frame 1 together with the steel bar components are hoisted to the casting section of the main tower, the longitudinal beams and transverse beams on the main load-bearing frame 1 are fixed on the inner mold trusses of the main tower casting.

[0028] In this embodiment, a slideway 2 is installed on the main load-bearing frame 1. Figures 1-2As shown, the slideway 2 of this embodiment is an I-beam structure, and the slideway 2 itself is arranged along the circumference of the frame structure formed by the main load-bearing frame 1 (such as Figure 4 As shown, with the center of the frame structure formed by the main load-bearing frame 1 as the center of the circle), the slideway 2 is arranged along the shape of the main tower section, and multiple slideways 2 are arranged around to form a ring structure corresponding to the main tower section. The main tower section of this embodiment is approximately quadrilateral, so the slideway 2 of this embodiment can be arranged longitudinally and transversely, and the slideway 2 itself can move along the radial direction of the main load-bearing frame 1, that is, the slideway 2 arranged longitudinally can slide transversely, and the slideway 2 arranged transversely can slide longitudinally, and corresponding adjustments are made according to the shape and scale of the main tower section.

[0029] A plurality of connectors 3 are provided on the slideway 2. The connectors 3 are lifting connection points for connecting the steel bar components. Figures 1 to 3 As shown, the connector 3 includes a ring that is sleeved on the slide 2, and a lifting lug is provided at the lower end of the ring. The lifting lug is connected to a connecting chain, and the steel bar component can be connected through the connecting chain. The connector 3 can adjust its position along the length direction of the slide 2 to adapt to the change of the cross section of the main tower. Such an adjustment structure can ensure that the lifting position of the connector 3 is always directly above the center of gravity of the steel bar component, and the lifting safety is greatly improved.

[0030] After the position adjustment of the slideway 2 is completed, the slideway 2 needs to be fixed. Figures 1 to 3 As shown, the main load-bearing frame 1 of this embodiment is provided with a fixing structure for fixing the slideway 2 after the slideway 2 is adjusted. The fixing structure includes a finely rolled threaded steel bar 4 passing through the slideway 2, which passes through the slideway 2 in the radial direction of the main load-bearing frame 1, and the two ends are respectively anchored and connected to the fixing seats 5 on the main load-bearing frame 1. After the adjustment is completed, the slideway 2 is fixed and limited by the finely rolled threaded steel bar 4 vertically passing through the slideway 2 and the fixing seats 5 on both sides, so as to prevent it from shaking.

[0031] After the main load-bearing frame 1 of this embodiment is hoisted together with the steel bar parts to the main tower section, it is not conducive to hoisting the inner template of the main tower due to the obstruction of the main load-bearing frame 1. In order to solve this problem, this embodiment is provided with a hoisting structure for hoisting the inner template of the main tower at the lower end of the main load-bearing frame 1. Figures 1-2 As shown, the hoisting structure includes a track 8 fixed at the lower end of the main load-bearing frame 1. The track 8 is a guiding structure arranged along the axial direction of the main load-bearing frame 1. Multiple tracks 8 are surrounded to form a ring structure corresponding to the inner template of the main tower. An electric hoist 9 is provided on the track 8 and can slide along the length direction of the track 8.

[0032] In addition, a material unloading platform can be arranged on the upper end of the main load-bearing frame 1, such as Figures 1 to 4As shown, in this embodiment, a material unloading platform is arranged at the upper end of the main load-bearing frame 1, which can be used as a working platform for pouring construction and as a shielding structure for the pouring section of the main tower to prevent the poured concrete from being exposed to the sun and rain. Figures 1 to 4 As shown, it includes a material unloading platform arranged on the main load-bearing frame 1, the material unloading platform includes a fixed platform 6 fixed on the slideway 2 and a sliding platform 7 movably connected to the fixed platform 6 along the length direction of the slideway 2, and the sliding platform 7 is connected to the fixed platform 6 on both sides along the circumferential direction of the main load-bearing frame 1 to form a platform structure with the fixed platform 6 for shielding the main tower casting section. Figure 4 As shown, in this embodiment, a plurality of discharge holes 10 are provided on the fixed platform 6 and the sliding platform 7, and the discharge holes 10 serve as discharge holes for concrete.

[0033] During actual construction, the position of the slide 2 on the main load-bearing frame 1 is adjusted according to the shape and specifications of the steel bar components to be hoisted. After the adjustment is completed, the slide 2 is anchored and fixed by the fine-rolled threaded steel 4, the position of the connector 3 on the slide 2 is adjusted, the connector 3 is connected to the steel bar components by a chain, and the main load-bearing frame 1 and the steel bar components are hoisted as a whole to the main tower section, the main load-bearing frame 1 is fixed on the inner mold truss, and the position of the sliding platform 7 on the main load-bearing frame 1 is adjusted so that the unloading platform formed by the sliding platform 7 and the fixed platform 6 can completely cover the casting section, and then the casting construction of the main tower section is carried out based on the fixed platform 6 and the sliding platform 7 on the main load-bearing frame 1.

[0034] After the construction is completed, the connection between the steel bar component and the connector 3 is released, the main load-bearing frame 1 is disassembled from the inner mold truss as a whole, and then hoisted to the bottom of the main tower to facilitate the hoisting of the steel bar component of the next section.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multifunctional lifting device for lifting steel bar parts, characterized in that: The main load-bearing frame (1) comprises a main load-bearing frame (1); a plurality of slideways (2) are arranged on the main load-bearing frame (1); the slideways (2) are arranged along the circumference of the main load-bearing frame (1) with the midpoint of the main load-bearing frame (1) as the center, and the plurality of slideways (2) surround to form a ring structure corresponding to the cross section of the main tower; the slideway (2) is a guide rail movably connected to the main load-bearing frame (1) along the radial direction of the main load-bearing frame (1), and a plurality of connectors (3) for hanging steel bar parts are arranged on the slideway (2); the connector (3) is a hanging connection point movably connected to the slideway (2) along the length direction of the slideway (2); The lower end of the main load-bearing frame (1) is provided with a hoisting structure for hoisting the inner template of the main tower; The main load-bearing frame (1) is provided with a fixing structure for fixing the slideway (2) after the slideway (2) is adjusted.

2. A multifunctional lifting device for lifting steel bar parts according to claim 1, characterized in that: The fixing structure comprises a finely rolled threaded steel bar (4) which is inserted through the slideway (2); the finely rolled threaded steel bar (4) passes through the slideway (2) in the radial direction of the main load-bearing frame (1), and both ends of the finely rolled threaded steel bar (4) are respectively anchored and connected to a fixing seat (5) on the main load-bearing frame (1).

3. A multifunctional lifting device for lifting steel bar parts according to claim 1, characterized in that: The upper end of the main load-bearing frame (1) is provided with a shielding structure for shielding the casting cross section of the main tower.

4. A multifunctional lifting device for lifting steel bar parts as claimed in claim 3, characterized in that: The shielding structure comprises a material unloading platform arranged on the main load-bearing frame (1); the material unloading platform comprises a fixed platform (6) fixed on the slideway (2) and a sliding platform (7) movably connected to the fixed platform (6) along the length direction of the slideway (2); the sliding platform (7) is connected to the fixed platform (6) on both sides along the circumferential direction of the main load-bearing frame (1) to form a platform structure for shielding the main tower casting section with the fixed platform (6).

5. A multifunctional lifting device for lifting steel bar parts according to claim 1, characterized in that: The hoisting structure comprises a track (8) fixed at the lower end of the main load-bearing frame (1); the track (8) is a guide structure arranged along the circumferential direction of the main load-bearing frame (1), and a plurality of tracks (8) surround to form a ring structure corresponding to the inner template of the main tower; an electric hoist (9) is arranged on the track (8) and can slide along the length direction of the track (8).

6. A multifunctional lifting device for lifting steel bar parts according to any one of claims 1 to 5, characterized in that: The main load-bearing frame (1) is a single-layer truss structure formed by a plurality of steel sections being cross-connected vertically and horizontally.

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