Adjusting type lifting appliance for beam lifter

Abstract

An adjustable beam lifter lifting sling comprises a bearing frame, a connecting plate is fixedly connected between the inner side surfaces of the middle of the bearing frame, mounting plates are symmetrically arranged at the two ends of the upper surface of the bearing frame, transverse reinforcing rib plates and longitudinal reinforcing rib plates are symmetrically arranged at the two ends of the mounting plates, and bearing bolts are symmetrically arranged at the two ends of the mounting plates. The bearing bolt penetrates through the mounting plate and the bearing frame and is rotationally connected with the cap nut, the upper surface of the bearing bolt is fixedly connected and vertically provided with a lifting lug, the upper surface of the bearing frame is symmetrically provided with a single-line box girder lifting appliance bolt and a double-line box girder lifting appliance bolt respectively, an adjusting frame plate is hinged between the single-line box girder lifting appliance bolt and the double-line box girder lifting appliance bolt, and splicing openings are symmetrically formed in the end part of the adjusting frame plate; according to the application, the single-line box girder lifting appliance or the double-line box girder lifting appliance is quickly switched through the single-line box girder lifting appliance bolt and the double-line box girder lifting appliance bolt, and the used lifting appliance bolt is supported in an auxiliary manner by rotating the adjusting frame plate, so that the technical effect of improving the working efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to an adjustable beam hoisting spreader for a beam hoisting machine. Background Art

[0002] A beam hoisting machine is a gantry crane specially designed for bridge construction. The beam hoisting machine mainly consists of a spliced main beam, legs, a trolley, etc. The components are connected by pin shafts and high-strength bolts, which are easy to disassemble and transport; compared with ordinary gantry cranes, it is convenient and fast to install, economical and practical, and is suitable for road and bridge construction units that often move.

[0003] Usually, when using a beam hoisting machine to connect a spreader to lift construction materials, since the construction materials need to be moved after being lifted, it is easy to cause the horizontal rotation of the steel cable or the construction materials, resulting in mutual friction at the connection between the steel cable and the spreader. Over time, it is easy to cause the problem of steel cable breakage, thus reducing safety.

[0004] Usually, when a single-line box girder spreader and a double-line box girder spreader are needed, since the horizontal distances of the lifting holes designed for the single-line box girder spreader and the double-line box girder spreader are different, it is necessary to replace the spreader according to the requirements, thus reducing the operation efficiency. Content of the Utility Model

[0005] The utility model provides an adjustable beam hoisting spreader for a beam hoisting machine, which solves the technical problem in the prior art that since the horizontal distances of the lifting holes designed for the single-line box girder spreader and the double-line box girder spreader are different, it is necessary to replace the spreader according to the requirements, thus reducing the operation efficiency.

[0006] To solve the above problems, the utility model provides an adjustable beam hoisting spreader for a beam hoisting machine, including a load-bearing frame, characterized in that: a connecting plate is fixedly connected between the inner surfaces of the middle part of the load-bearing frame, mounting plates are symmetrically arranged at both ends of the upper surface and are fixedly connected by fixing bolts, transverse reinforcing rib plates and longitudinal reinforcing rib plates are symmetrically arranged at both ends of the mounting plates, the longitudinal reinforcing rib plates are vertically intersected with the transverse reinforcing rib plates, load-bearing bolts are symmetrically arranged at both ends of the mounting plates on the sides of the longitudinal reinforcing rib plates and the transverse reinforcing rib plates, the load-bearing bolts pass through the mounting plates and the load-bearing frame and are rotatably connected with cap nuts, a lifting lug is fixedly connected vertically on the upper surface, single-line box girder spreader bolts and double-line box girder spreader bolts are symmetrically arranged between the mounting plates on the upper surface of the load-bearing frame, the single-line box girder spreader bolts and the double-line box girder spreader bolts are rotatably connected with the load-bearing frame, an adjusting frame plate is hinged on the surface of the load-bearing frame between them, the adjusting frame plate is integrally in a "Z" shape structure, splicing openings are symmetrically arranged at the ends, and angle reinforcing rib plates are arranged at the included angle of the inner surface of the load-bearing frame and at the included angle formed with the inner surface of the connecting plate.

[0007] Furthermore, one set of transverse stiffening rib plates are symmetrically arranged at both ends of the mounting plate.

[0008] Furthermore, two sets of longitudinal stiffening rib plates are symmetrically arranged at both ends of the mounting plate.

[0009] Furthermore, one set of load-bearing bolts are symmetrically arranged at both ends of the mounting plate.

[0010] Furthermore, one connecting plate is fixedly connected between the inner surfaces of the middle parts of the load-bearing frames.

[0011] Furthermore, the splicing opening is of an arc-shaped structure.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. In this application, the load-bearing bolts pass through the mounting plate and the load-bearing frame and are rotationally connected with the cap nuts. When the steel cable or the building materials rotate horizontally during the process of using the lifting beam machine to lift the building materials by connecting the lifting lugs with the steel cable, since the lifting lugs are fixedly connected with the load-bearing bolts, the rotation of the load-bearing bolts under force can prevent the mutual friction between the steel cable and the lifting lugs, thereby achieving the technical effect of extending the service life of the steel cable.

[0014] 2. In this application, the single-line box girder lifting tool bolts and the double-line box girder lifting tool bolts are used to quickly switch between the single-line box girder lifting tool and the double-line box girder lifting tool, and the rotation adjustment rack plate plays an auxiliary supporting role for the used lifting tool bolts, achieving the technical effect of improving the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram according to an embodiment of the present utility model;

[0016] Figure 2 is a front view structural schematic diagram according to an embodiment of the present utility model;

[0017] Figure 3 is a top view structural schematic diagram according to an embodiment of the present utility model.

[0018] Reference numerals: load-bearing frame 1, mounting plate 2, adjustment rack plate 3, single-line box girder lifting tool bolt 4, double-line box girder lifting tool bolt 5, connecting plate 11, included angle stiffening rib plate 12, longitudinal stiffening rib plate 21, transverse stiffening rib plate 22, fixing bolt 23, load-bearing bolt 24, lifting lug 25, cap nut 26, splicing opening 31. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the technical solutions of the present utility model clearer and more understandable, the present utility model will be further described below with reference to the specific embodiments in the drawings.

[0020] As Figures 1-3As shown in the figure, an adjustable beam crane lifting spreader according to an embodiment of the present utility model includes a load-bearing frame 1. A connecting plate 11 is fixedly connected between the inner surfaces of the middle part of the load-bearing frame 1. Installation plates 2 are symmetrically arranged at both ends of the upper surface and are fixedly connected by fixing bolts 23. Transverse reinforcing rib plates 22 and longitudinal reinforcing rib plates 21 are symmetrically arranged at both ends of the installation plate 2. The longitudinal reinforcing rib plates 21 and the transverse reinforcing rib plates 22 are vertically intersected. Load-bearing bolts 24 are symmetrically arranged at both ends of the installation plate 2 on the sides of the longitudinal reinforcing rib plates 21 and the transverse reinforcing rib plates 22. The load-bearing bolts 24 pass through the installation plate 2 and the load-bearing frame 1 and are rotatably connected with cap nuts 26. A lifting lug 25 is fixedly connected vertically on the upper surface thereof. Single-line box girder spreader bolts 4 and double-line box girder spreader bolts 5 are symmetrically arranged between the installation plates 2 on the upper surface of the load-bearing frame 1. The single-line box girder spreader bolts 4 and the double-line box girder spreader bolts 5 are rotatably connected with the load-bearing frame 1. An adjusting frame plate 3 is hinged on the surface of the load-bearing frame 1 between them. The adjusting frame plate 3 is in an overall "Z" shape structure, and splicing openings 31 are symmetrically arranged at its ends. Angle reinforcing rib plates 12 are arranged at the included angle of the inner surface of the load-bearing frame 1 and at the included angle formed with the inner surface of the connecting plate 11.

[0021] Among them, 1 group of transverse reinforcing rib plates 22 are symmetrically arranged at both ends of the installation plate 2; during work, the transverse reinforcing rib plates 22 can play a role in strengthening the installation plate 2 and the load-bearing frame 1.

[0022] Among them, 2 groups of longitudinal reinforcing rib plates 21 are symmetrically arranged at both ends of the installation plate 2; during work, the longitudinal reinforcing rib plates 21 can play a role in strengthening the installation plate 2 and the load-bearing frame 1.

[0023] Among them, 1 group of load-bearing bolts 24 are symmetrically arranged at both ends of the installation plate 2; during work, by rotating the load-bearing bolts 24, it can prevent the connection between the steel cable and the spreader from rubbing against each other, thereby extending its service life.

[0024] Among them, 1 connecting plate 11 is fixedly connected between the inner surfaces of the middle part of the load-bearing frame 1; during work, the connecting plate 11 can play a role in strengthening the load-bearing frame 1.

[0025] Among them, the splicing opening 31 is in a circular arc structure; during work, the adjusting frame plate 3 is spliced and connected with the single-line box girder spreader bolts 4 and the double-line box girder spreader bolts 5 through the splicing opening 31, thereby playing a role in auxiliary support.

[0026] Working principle: First, connect the steel cable on the beam hoist with the lifting lug 25. When the single-line box girder sling is needed, rotate the single-line box girder sling bolt 4 to connect with the single-line box girder sling. At the same time, rotate the double-line box girder sling bolt 5 to rise. Then rotate the adjusting frame plate 3 so that the splicing opening 31 is spliced and connected with the single-line box girder sling bolt 4 and the double-line box girder sling bolt 5. Through the special structure of the adjusting frame plate 3, the double-line box girder sling bolt 5 plays an auxiliary supporting role for the single-line box girder sling bolt 4;

[0027] When the double-line box girder sling is needed, rotate the double-line box girder sling bolt 5 to connect with the double-line box girder sling in the above-mentioned manner. At the same time, rotate the single-line box girder sling bolt 4 to rise. Then rotate the adjusting frame plate 3 in the reverse direction so that the splicing opening 31 is spliced and connected with the double-line box girder sling bolt 5 and the single-line box girder sling bolt 4, so that the single-line box girder sling bolt 4 plays an auxiliary supporting role for the double-line box girder sling bolt 5;

[0028] Then start the beam hoist to pull the sling of the present application to lift and move the building materials. During the movement, if the building materials or the steel cable rotate horizontally, since the present application passes the load-bearing bolt 24 through the mounting plate 2 and the load-bearing frame 1 and is rotatably connected with the cap nut 26, and the lifting lug 25 is fixedly connected with the load-bearing bolt 24, the rotation of the load-bearing bolt 24 is used to prevent friction between the steel cable and the lifting lug 25, thereby prolonging the service life of the steel cable.

[0029] The above embodiments can be combined with each other without conflict for further implementation.

[0030] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An adjustable lifting spreader for a beam hoisting machine, comprising a load-bearing frame (1), characterized in that: A connecting plate (11) is fixedly connected between the inner surfaces of the middle part of the load-bearing frame (1). Installation plates (2) are symmetrically arranged at both ends of the upper surface and are fixedly connected by fixing bolts (23). Transverse reinforcing rib plates (22) and longitudinal reinforcing rib plates (21) are symmetrically arranged at both ends of the installation plate (2). The longitudinal reinforcing rib plates (21) intersect perpendicularly with the transverse reinforcing rib plates (22). Load-bearing bolts (24) are symmetrically arranged at both ends of the installation plate (2) on the sides of the longitudinal reinforcing rib plates (21) and the transverse reinforcing rib plates (22). The load-bearing bolts (24) pass through the installation plate (2) and the load-bearing frame (1) and are rotatably connected with cap nuts (26). Lifting lugs (25) are vertically fixedly connected to the upper surface thereof. Single-line box girder lifting bolts (4) and double-line box girder lifting bolts (5) are symmetrically arranged between the installation plates (2) on the upper surface of the load-bearing frame (1). The single-line box girder lifting bolts (4) and the double-line box girder lifting bolts (5) are rotatably connected with the load-bearing frame (1). An adjusting frame plate (3) is hinged on the surface of the load-bearing frame (1) between them. The adjusting frame plate (3) is of an overall "Z" - shaped structure, and splicing openings (31) are symmetrically arranged at its ends. Angle reinforcing rib plates (12) are arranged at the included angle of the inner surface of the load-bearing frame (1) and at the included angle formed with the inner surface of the connecting plate (11).

2. The adjustable lifting spreader of the lifting beam machine according to claim 1, wherein: One group of transverse reinforcing rib plates (22) are symmetrically arranged at both ends of the installation plate (2).

3. The adjustable lifting spreader of the beam lifting machine according to claim 1, characterized in that: Two groups of longitudinal reinforcing rib plates (21) are symmetrically arranged at both ends of the installation plate (2).

4. The adjustable lifting spreader of a lifting beam machine according to claim 1, wherein: One group of load-bearing bolts (24) are symmetrically arranged at both ends of the installation plate (2).

5. The adjustable lifting spreader of a lifting beam machine according to claim 1, characterized in that: One connecting plate (11) is fixedly connected between the inner surfaces of the middle part of the load-bearing frame (1).

6. The adjustable lifting spreader of a beam hoisting machine according to claim 1, characterized in that: The splicing opening (31) is of an arc-shaped structure.

Images