Adjustable self-balancing type steel beam lifting appliance

Abstract

The utility model discloses an adjustable self-balancing type steel beam lifting appliance which comprises a bearing main beam, a carrying pole beam, C-shaped frame beams, distribution beams and hydraulic jacks, the bearing main beam is used for being connected with lifting equipment, the C-shaped frame beams and the carrying pole beam are sequentially and symmetrically arranged at the two ends of the bottom of the bearing main beam downwards, and the distribution beams are arranged at the two ends of the carrying pole beam respectively. The pull plates are rotatably connected to the two ends of the distribution beam and used for being connected with the top of the steel beam, relative sliding between the carrying pole beam and the C-shaped frame beam is achieved through the lower sliding plate and the upper sliding plate, the carrying pole beam is supported upwards mainly through the sliding connection part, and the hydraulic jack serves as a power mechanism to stretch out and draw back to achieve relative movement between the carrying pole beam and the C-shaped frame beam. Therefore, the relative position is changed, the gravity center of the hoisting steel beam is adjusted, self-balance of hoisting is achieved, the problem that the gravity center is difficult to adjust in the hoisting process of the steel beam is solved, the overall structure is light, the construction efficiency is greatly improved, and good economic benefits are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, and more specifically, to an adjustable self-balancing steel beam hanger. Background Art

[0002] Steel beams are widely used in bridge design. Due to the different lengths of different sections of steel beams and the different weight distribution of the structure, the center of gravity of the steel beams is inconsistent. Conventional hoists may not be able to match all steel beam hoists, and different types of hoists need to be processed for construction. To avoid the above problems, some hoist structures have been modified and redesigned. Multiple pairs of lifting ears are set on the hoists. Steel beams are connected by inserting steel wire ropes through the lifting ears at different positions to adapt to steel beam structures of different sizes or different centers of gravity. However, this structural improvement method is costly and difficult to operate in practice. It is not easy to ensure safety when lifting steel beams, and it is also difficult to grasp the accuracy of adjusting the center of gravity of the steel beam. Utility Model Content

[0003] The utility model aims to provide an adjustable self-balancing steel beam hanger to solve the technical problem that the steel beam hanger in the prior art is difficult to adjust the center of gravity of steel beams of different sizes when hoisting the steel beams.

[0004] In order to achieve these purposes and other advantages according to the utility model, an adjustable self-balancing steel beam hanger is provided, comprising:

[0005] The load-bearing main beam is horizontally extended, and upper main lifting ears for connecting the lifting equipment are symmetrically welded at the top of both ends of the load-bearing main beam, and lower main lifting ears are symmetrically welded at the bottom of both ends of the load-bearing main beam;

[0006] The shoulder pole beam is arranged below the two ends of the load-bearing main beam in the length direction and perpendicular to the length direction of the load-bearing main beam. The middle part of the shoulder pole beam is connected to sliding beams on both sides of the length direction of the load-bearing main beam. The sliding beam extends along the length direction of the shoulder pole beam and an upper sliding plate is fixed to the bottom surface of the sliding beam.

[0007] The C-shaped frame beam is sleeved on the middle upper end of the shoulder beam, the top of the C-shaped frame beam is connected with a middle lifting ear, the middle lifting ear is connected with the lower main lifting ear through a pin shaft, the opening direction of the C-shaped frame beam is downward, and the two ends extend horizontally toward each other to form a sliding connection, a lower slide plate is fixed on the top surface of the sliding connection, a pair of sliding beams pass through the inner side of the C-shaped frame beam and are located directly above the sliding connection, and the upper slide plate is slidably connected with the lower slide plate;

[0008] A hydraulic jack is arranged on the top of the shoulder pole beam and is remotely driven by remote control. One end of the cylinder body is hinged to the shoulder pole beam and the telescopic end is hinged to the C-shaped frame beam, and is used to drive the C-shaped frame beam to slide relative to the shoulder pole beam along the length direction of the sliding beam;

[0009] The distribution beam is symmetrically connected to the two ends of the shoulder beam, and a pull plate is respectively connected downward from the two ends of each distribution beam, and is connected to the lifting lugs on the steel beam through the pull plate.

[0010] Preferably, a limiting structure is provided on the shoulder beam at positions at both ends of the sliding beam in the length direction, so as to prevent the C-shaped frame beam from sliding out of the sliding beam.

[0011] Preferably, the limiting structure includes fixed end plates, fine-rolled threaded steel bars, nuts and washers, and a pair of fixed end plates are respectively connected directly below the two ends of each sliding beam, and the fixed end plates are fixedly connected to the corresponding side surfaces of the shoulder beam. A fine-rolled threaded steel bar is passed through and connected between each pair of fixed end plates and fastened by nuts and washers. A channel hole is opened on the sliding connection portion corresponding to the axial penetration of the fine-rolled threaded steel bar, and the inner diameter of the channel hole is not less than the outer diameter of the fine-rolled threaded steel bar, and the fine-rolled threaded steel bar is arranged to pass through the channel hole.

[0012] Preferably, the sliding beam includes a top plate, a bottom plate, and a vertical plate. An upper flat plate is provided on the top of the shoulder beam. The upper flat plate extends outward in the width direction within the length range of the sliding beam to form the top plate of the sliding beam. The bottom plate is located directly below the top plate. A row of vertical plates are connected between the top plate and the bottom plate at intervals along the length direction. The length of the bottom plate is greater than that of the top plate. The upper sliding plate is fixed to the bottom surface of the bottom plate and is less than the length of the bottom plate. The top of the fixed end plate is fixedly connected to the corresponding side end of the bottom plate outside the upper sliding plate.

[0013] Preferably, a support is hinged at the bottom of one end of the cylinder of the hydraulic jack, and the bottom of the support is set as a connecting plate, which is located above the corresponding side end of the sliding beam, and the connecting plate is fixedly connected to the upper flat plate at the corresponding position and the top of the top plate on both sides.

[0014] Preferably, the distribution beam is connected to the top of the shoulder pole beam in a direction perpendicular to the length of the shoulder pole beam, and side lifting ears are welded downward at both ends of each distribution beam. Pull holes are respectively opened at the upper and lower ends of the pull plate, and the side lifting ears and the upper end of the pull plate, and the lifting ears on the steel beam and the lower end of the pull plate are respectively connected by pins passing through the pull holes at the corresponding ends.

[0015] The utility model at least includes the following beneficial effects: the adjustable self-balancing steel beam hoist of the utility model includes a load-bearing main beam, a shoulder pole beam, a C-shaped frame beam, a distribution beam, and a hydraulic jack. The load-bearing main beam is used to connect the lifting equipment. The C-shaped frame beam and the shoulder pole beam are symmetrically arranged downward at the two ends of the bottom of the load-bearing main beam. Distribution beams are respectively arranged at both ends of the shoulder pole beam. Rotatable connecting pull plates are used to connect with the top of the steel beam at both ends of the distribution beam. Relative sliding is achieved between the shoulder pole beam and the C-shaped frame beam through the lower slide plate and the upper slide plate, and the shoulder pole beam is mainly supported upward by the sliding connection part. The hydraulic jack is used as a power mechanism to extend and retract to achieve relative movement of the shoulder pole beam and the C-shaped frame beam, thereby changing the relative position, adjusting the center of gravity of the lifted steel beam, making the steel beam level, and realizing self-balancing of the lifting, solving the problem that the center of gravity is difficult to adjust during the lifting of the steel beam. The overall structure is light, which greatly improves the construction efficiency and has good economic benefits.

[0016] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the main structural diagram of the utility model;

[0018] Figure 2 It is a side structural diagram of the utility model;

[0019] Figure 3 yes Figure 1 The cross section of the distribution beam in the AA direction;

[0020] Figure 4 yes Figure 1 The cross section of the shoulder beam in the BB direction;

[0021] Figure 5 yes Figure 1 The cross section of the C-frame in the CC direction;

[0022] Explanation of the reference numerals in the drawings in the specification: 1. load-bearing main beam, 2. shoulder pole beam, 3. sliding beam, 4. C-type frame, 5. hydraulic jack, 6. distribution beam, 7. pull plate, 8. upper slide plate, 9. lower slide plate, 10. upper main lifting eye, 11. lower main lifting eye, 12. middle lifting eye, 13. sliding connection, 14. limiting device, 15. fixed end plate, 16. fine-rolled threaded steel, 17. nut, 18. passage hole, 19. top plate, 20. bottom plate, 21. vertical plate, 22. upper flat plate, 23. support, 24. side lifting eye, 30. steel beam. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0024] In the description of the present invention, terms such as "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0025] like Figure 1-5 As shown, the adjustable self-balancing steel beam hanger of the utility model comprises:

[0026] The load-bearing main beam 1 is horizontally extended, and upper main lifting ears 10 for connecting the lifting equipment are symmetrically welded at the top of both ends of the load-bearing main beam 1, and lower main lifting ears 11 are symmetrically welded at the bottom of both ends of the load-bearing main beam 1;

[0027] The shoulder pole beam 2 is arranged below the two ends of the length direction of the load-bearing main beam 1 and along the length direction perpendicular to the load-bearing main beam 1. The middle part of the shoulder pole beam 2 is connected to the sliding beam 3 on both sides of the length direction of the load-bearing main beam 1. The sliding beam 3 extends along the length direction of the shoulder pole beam 2 and an upper sliding plate 8 is fixed to the bottom surface of the sliding beam 3.

[0028] The C-shaped frame beam is sleeved on the middle upper end of the shoulder beam 2. A middle lifting lug 12 is connected to the top of the C-shaped frame beam. The middle lifting lug 12 is connected to the lower main lifting lug 11 through a pin shaft. The opening direction of the C-shaped frame beam is downward and the two ends extend horizontally toward each other to form a sliding portion 13. A lower slide plate 9 is fixed on the top surface of the sliding portion 13. A pair of sliding beams 3 pass through the inner side of the C-shaped frame beam and are located directly above the sliding portion 13. The upper slide plate 8 is slidably connected to the lower slide plate 9.

[0029] A hydraulic jack 5 is arranged on the top of the shoulder pole beam 2 and is remotely driven by remote control. One end of the cylinder body is hinged to the shoulder pole beam 2 and the telescopic end is hinged to the C-shaped frame beam, and is used to drive the C-shaped frame beam to slide relative to the shoulder pole beam 2 along the length direction of the sliding beam 3;

[0030] The distribution beam 6 is symmetrically connected to the two ends of the shoulder beam 2 . A pull plate 7 is connected downward from the two ends of each distribution beam 6 , and is connected to the lifting lugs on the steel beam 30 through the pull plate 7 .

[0031] The load-bearing main beam 1 is welded into a rectangle by thick steel plates, and stiffening plates are distributed on the load-bearing main beam 1. Two upper main lifting ears 10 are welded at both ends of the top, and are connected to the lifting equipment through a traction rope. Four lower main lifting ears 11 are welded on the lower steel plate, which are divided into two pairs of lower main lifting ears 11. Each pair of main lower lifting ears is connected to the middle lifting ear 12 on the top of the C-shaped frame beam at one end below through a pin shaft. The shoulder beam 2 is welded into a rectangle by thick steel plates. The distribution beam 6 is fixed by bolts at a certain distance on both sides of the shoulder beam 2. The middle opening of the shoulder beam 2 is fixed by bolts. The jack 5 and the distribution beam 6 are welded into a rectangle by thick steel plates and placed on the shoulder pole beam 2. The side lifting ears 24 are welded on the bottom of the distribution beam 6 and then connected to the lifting ears of the steel beam 30 by the pull plate 7. The C-shaped frame 4 is welded by thick steel plates and is used to connect the shoulder pole beam 2 and the load-bearing main beam 1. The hydraulic jack 5 uses a remote control device to remotely control its telescopic length, and the telescopic direction is parallel to the length direction of the shoulder pole beam 2. The product technology of the hydraulic jack 5 with remote control function in the prior art is very mature, and the technical principle will not be repeated here.

[0032] When adjusting the center of gravity of the steel beam 30 during use, the following steps can be used:

[0033] Step 1, the load-bearing main beam 1 is connected to the hook of the lifting equipment through the upper main lifting lug 10 by a steel wire rope, and the load-bearing main beam 1 is connected to the C-shaped frame 4 through the lower main lifting lug 11 by a pin shaft;

[0034] Step 2, the load-bearing main beam 1 and the shoulder beam 2 are connected on the sliding beam 3 by using a C-shaped frame 4 sliding sleeve;

[0035] Step 3, the distribution beam 6 is installed on the shoulder beam 2, and the side lifting lug 24 is connected with the beam surface lifting lug of the steel beam 30 by a pin through the pull plate 7;

[0036] Step 4: Use a remote controller to control the hydraulic jack 5 to telescope and adjust the position of the C-shaped frame 4, and use the limit device 14 to limit the center of gravity of the matching steel beam 30, and then lift and move the steel beam 30.

[0037] The load-bearing main beam 1 of the adjustable self-balancing steel beam hoist is used to connect the lifting equipment. A C-shaped frame beam and a shoulder pole beam 2 are symmetrically arranged downward at both ends of the bottom of the load-bearing main beam 1. Distribution beams 6 are respectively arranged at both ends of the shoulder pole beam 2. Rotatable connecting pull plates 7 are used to connect with the top of the steel beam 30 at both ends of the distribution beam 6. Relative sliding is achieved between the shoulder pole beam 2 and the C-shaped frame beam through the lower slide plate 9 and the upper slide plate 8, and the shoulder pole beam 2 is mainly supported upward by the sliding connection part 13. The hydraulic jack 5 is used as a power mechanism to extend and retract to achieve relative movement of the shoulder pole beam 2 and the C-shaped frame beam, thereby changing the relative position, adjusting the center of gravity of the lifted steel beam 30, and realizing self-balancing of the lifting, which solves the problem of difficulty in adjusting the center of gravity during the lifting process of the steel beam 30. The overall structure is light, which greatly improves the construction efficiency and has good economic benefits.

[0038] In another technical solution, Figure 1 As shown, a limiting structure is provided on the shoulder beam 2 at both ends of the sliding beam 3 in the length direction, so as to prevent the C-shaped frame beam from sliding out of the sliding beam 3 and to separate the distribution beam 6 from the C-shaped frame beam by a certain distance.

[0039] In another technical solution, Figure 1 , 5 As shown, the limiting structure includes a fixed end plate 15, a fine-rolled threaded steel bar 16, a nut 17 and a gasket. A pair of fixed end plates 15 are respectively connected directly below the two ends of each of the sliding beams 3. The fixed end plates 15 are fixedly connected to the corresponding sides of the shoulder beam 2. A fine-rolled threaded steel bar 16 is passed through and connected between each pair of fixed end plates 15 and is fastened to the gasket through the nut 17. A channel hole 18 is opened on the sliding portion 13 corresponding to the axial through-hole of the fine-rolled threaded steel bar 16. The inner diameter of the channel hole 18 is not less than the outer diameter of the fine-rolled threaded steel bar 16, and the fine-rolled threaded steel bar 16 is arranged to pass through the channel hole 18.

[0040] The top of the fixed end plate 15 is fixed to the bottom of the sliding beam 3, and one side of the fixed end plate 15 is fixed to the side of the shoulder beam 2. The high-quality rolled threaded steel bar 16 passing through the channel hole 18 is fixed and tightened between the two opposite fixed end plates 15, and together with the sliding beam 3, it forms a guiding structure for the C-shaped frame beam. The fixed end plate 15 serves as a blocking and limiting structure for end sliding.

[0041] In another technical solution, Figure 1 , 4 As shown, the sliding beam 3 includes a top plate 19, a bottom plate 20, and a vertical plate 21. An upper flat plate 22 is provided on the top of the shoulder beam 2. The upper flat plate 22 extends outward in the width direction within the length range of the sliding beam 3 to form the top plate 19 of the sliding beam 3. The bottom plate 20 is located directly below the top plate 19. A row of vertical plates 21 are connected between the top plate 19 and the bottom plate 20 at intervals along the length direction. The length of the bottom plate 20 is greater than that of the top plate 19. The upper slide plate 8 is fixed to the bottom surface of the bottom plate 20 and is less than the length of the bottom plate 20. The top of the fixed end plate 15 is fixedly connected to the corresponding side end of the bottom plate 20 located outside the upper slide plate 8.

[0042] The sliding beam 3 and the shoulder beam 2 form an integral connection structure through the upper plate 22, which improves the structural strength and bearing capacity. The upper plate 22 is extended in the width direction to facilitate connection with the hydraulic jack 5 and the distribution beam 6. The skeleton structure of the sliding beam 3 is formed by connecting the top plate 19, the bottom plate 20, and the vertical plate 21. The structure is simple and easy to manufacture.

[0043] In another technical solution, Figure 1 , 5As shown, a support 23 is hinged at the bottom of one end of the cylinder of the hydraulic jack 5, and the bottom of the support 23 is set as a connecting plate. The connecting plate is located above the corresponding side end of the sliding beam 3, and the connecting plate is fixedly connected to the upper flat plate 22 at the corresponding position and the top of the top plate 19 on both sides. The connecting plate further increases the connection surface between the shoulder beam 2 and the support 23, thereby enhancing the connection strength.

[0044] In another technical solution, Figure 1 , 3 As shown, the distribution beam 6 is connected to the top of the shoulder pole beam 2 in a direction perpendicular to the length of the shoulder pole beam 2, and side lifting ears 24 are welded downward at both ends of each distribution beam 6. Pull holes are respectively opened at the upper and lower ends of the pull plate 7, and the side lifting ears 24 and the upper end of the pull plate 7, as well as the lifting ears on the steel beam 30 and the lower end of the pull plate 7 are respectively connected by pins passing through the pull holes at the corresponding ends.

[0045] The distribution beam 6 has a certain length, and side ears 24 and pull plates 7 are respectively arranged on both sides of the bottom of the distribution beam 6. Multiple pull plates 7 and multiple side ears 24 can be arranged in parallel on each side. The pulling holes are round holes, and a pin is passed through them for connection to enhance the structural support strength, and the ear sleeves of the steel beam 30 are hung on the pin.

[0046] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation scheme. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the drawings shown and described herein.

Claims

1. An adjustable self-balancing steel beam hanger, characterized in that: include: The load-bearing main beam is horizontally extended, and upper main lifting ears for connecting the lifting equipment are symmetrically welded at the top of both ends of the load-bearing main beam, and lower main lifting ears are symmetrically welded at the bottom of both ends of the load-bearing main beam; The shoulder pole beam is arranged below the two ends of the load-bearing main beam in the length direction and perpendicular to the length direction of the load-bearing main beam. The middle part of the shoulder pole beam is connected to sliding beams on both sides of the length direction of the load-bearing main beam. The sliding beam extends along the length direction of the shoulder pole beam and an upper sliding plate is fixed to the bottom surface of the sliding beam. The C-shaped frame beam is sleeved on the middle upper end of the shoulder beam, the top of the C-shaped frame beam is connected with a middle lifting ear, the middle lifting ear is connected with the lower main lifting ear through a pin shaft, the opening direction of the C-shaped frame beam is downward, and the two ends extend horizontally toward each other to form a sliding connection, a lower slide plate is fixed on the top surface of the sliding connection, a pair of sliding beams pass through the inner side of the C-shaped frame beam and are located directly above the sliding connection, and the upper slide plate is slidably connected with the lower slide plate; A hydraulic jack is arranged on the top of the shoulder pole beam and is remotely driven by remote control. One end of the cylinder body is hinged to the shoulder pole beam and the telescopic end is hinged to the C-shaped frame beam, and is used to drive the C-shaped frame beam to slide relative to the shoulder pole beam along the length direction of the sliding beam; The distribution beam is symmetrically connected to the two ends of the shoulder pole beam. A pull plate is respectively connected downward from the two ends of each distribution beam and is connected to the lifting lugs on the steel beam through the pull plate.

2. The adjustable self-balancing steel beam hanger according to claim 1, characterized in that: Limiting structures are provided on the shoulder beam at positions at both ends of the sliding beam in the length direction, so as to prevent the C-shaped frame beam from sliding out of the sliding beam.

3. The adjustable self-balancing steel beam hanger according to claim 2, characterized in that: The limiting structure includes fixed end plates, fine-rolled threaded steel bars, nuts and washers. A pair of fixed end plates are respectively connected directly below the two ends of each sliding beam, and the fixed end plates are fixedly connected to the corresponding side surfaces of the shoulder beam. A fine-rolled threaded steel bar is passed through each pair of fixed end plates and fastened by nuts and washers. A channel hole is opened on the sliding connection portion corresponding to the axial penetration of the fine-rolled threaded steel bar. The inner diameter of the channel hole is not less than the outer diameter of the fine-rolled threaded steel bar, and the fine-rolled threaded steel bar is arranged to pass through the channel hole.

4. The adjustable self-balancing steel beam hanger according to claim 3, characterized in that: The sliding beam includes a top plate, a bottom plate, and a vertical plate. An upper flat plate is provided on the top of the shoulder beam. The upper flat plate extends outward in the width direction within the length range of the sliding beam to form the top plate of the sliding beam. The bottom plate is located directly below the top plate. A row of vertical plates are connected between the top plate and the bottom plate at intervals along the length direction. The length of the bottom plate is greater than that of the top plate. The upper sliding plate is fixed to the bottom surface of the bottom plate and is less than the length of the bottom plate. The top of the fixed end plate is fixedly connected to the corresponding side end of the bottom plate located outside the upper sliding plate.

5. The adjustable self-balancing steel beam hanger according to claim 4, characterized in that: A support is hinged at the bottom of one end of the cylinder of the hydraulic jack, and the bottom of the support is set as a connecting plate, which is located above the corresponding side end of the sliding beam. The connecting plate is fixedly connected to the upper flat plate at the corresponding position and the top of the top plate on both sides.

6. The adjustable self-balancing steel beam hanger according to claim 1, characterized in that: The distribution beam is connected to the top of the shoulder pole beam in a direction perpendicular to the length of the shoulder pole beam. Side lifting ears are welded downward at both ends of each distribution beam. Pull holes are respectively opened at the upper and lower ends of the pull plate. The side lifting ears and the upper end of the pull plate, and the lifting ears on the steel beam and the lower end of the pull plate are respectively connected by pins passing through the pull holes at the corresponding ends.

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