Hoisting device for box beam
By designing a lifting device for box beams, using external clamping method and adjustable sliding components and hooks, the problems of time-consuming, labor-intensive and high-temperature damage in the prior art are solved, and the effect of fast and simple lifting and improving the physical performance of the beam is achieved.
Patent Information
- Application Number
- CN202421101183.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-20
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-20
AI Technical Summary
The prior art is time-consuming and labor-intensive when hoisting box beams, and welding and cutting hanging lugs will cause high temperature to damage the beam body structure and affect the mechanical properties.
A box-type beam lifting device is designed, and the welding hoisting lugs are replaced by external clamping method. The position of the sliding assembly and hook is adjusted through a bidirectional screw and a rotating motor to achieve the lifting of beam bodies of different sizes.
This device realizes fast and simple lifting of box beams, avoids high temperature damage during welding and cutting, improves the mechanical properties of the beam body, and increases the practicality of the device.
Smart Images
Figure CN222612736U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building hoisting, in particular to a hoisting device for a box beam. Background Art
[0002] Box beams are beam structures used in large-scale projects and installations. The length of such beams is generally more than ten meters. When processing, transporting or installing such beams, the ears are first welded on all four sides. After the above processing, transporting or installation is completed, the ears are cut off by electric welding and polished flat. This method of processing, transporting or installing box beams is not only time-consuming and labor-intensive, and increases manufacturing costs, but the high temperature generated when cutting off the ears will cause structural damage to the beam body of the box beam and seriously affect the mechanical properties of the beam body, laying the root cause of the project. Utility Model Content
[0003] In order to solve the above problems of the prior art, the utility model provides a box beam hoisting device, which is easy to install and can be reused, and solves the problem that the traditional method of hoisting box beams is time-consuming and labor-intensive and easily causes structural damage to the beam body.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting device for a box beam, comprising an I-beam, two sliding assemblies are slidably connected to the I-beam, a slider is fixedly connected to the lower end of the sliding assembly, baffles are fixedly connected to both ends of the I-beam, a bidirectional screw rod is rotatably connected between the two baffles, one end of the bidirectional screw rod is connected to a rotating motor, the positive and negative threads of the bidirectional screw rod are symmetrically threadedly connected to the slider, a crossbeam is fixedly connected to the bottom of the slider, hooks are provided at both ends of the crossbeam, the upper end of the hook is sleeved on the crossbeam, a limiting hole is provided at the upper end of the crossbeam, and a positioning assembly is installed on the upper part of the hook to fix the hook and the crossbeam relatively.
[0005] By adopting the above-mentioned structural design, the distance between the two hooks can be changed through the cooperation of the positioning assembly on the hook and the limiting hole on the crossbeam, so that the device can clamp box beams of different sizes. The bidirectional screw can change the distance between the two sliding assemblies according to the length of the box beam, thereby increasing the practicality of the device; an external clamping method is adopted instead of welding the lifting ears on the box beam, which eliminates the process of welding and cutting the lifting ears, making the operation simpler and more convenient. At the same time, it solves the problem that the high temperature generated during welding and cutting off the lifting ears will cause structural damage to the beam body of the box beam, seriously affecting the mechanical properties of the beam body.
[0006] Preferably, the sliding assembly includes a U-shaped mounting frame and two groups of moving wheels rotatably connected to both sides of the inner wall of the U-shaped mounting frame, the two groups of moving wheels are arranged on both sides of the web of the I-beam, and the moving wheels are rollingly connected to the lower flange of the I-beam.
[0007] With the above structural design, the moving wheel can roll on the lower flange of the I-beam, thereby increasing the smoothness of the hook when moving.
[0008] Preferably, the positioning assembly includes a mounting tube fixedly connected to the upper surface of the hook, a pull rod is vertically arranged in the mounting tube, a middle portion of the pull rod is fixedly connected to a limiting disk, and a return spring is sleeved on the upper end portion of the pull rod located at the limiting disk.
[0009] With the above structural design, the pull rod is clamped in the limiting hole to lock the relatively sliding hook and beam, and the reset spring can make the pull rod perform the reset movement stably and effectively.
[0010] Preferably, a rubber pad is provided on the inner wall of the hook.
[0011] The above structural design can prevent the hook and the box beam from squeezing each other and deforming the box beam when the device is hoisting the box beam. At the same time, the rubber pad can increase the friction between the box beam and the hook, thereby increasing the safety of the device.
[0012] Preferably, two lifting rings are symmetrically fixedly connected to the upper end of the I-beam.
[0013] With the above structural design, the lifting process is more stable when two lifting rings are provided.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] By cooperating with the positioning assembly on the hook and the limiting hole on the crossbeam, the distance between the two hooks can be changed, so that the device can clamp box beams of different sizes. The bidirectional screw can change the distance between the two sliding assemblies according to the length of the box beam, thereby increasing the practicality of the device. The external clamping method is used instead of welding the lifting ears on the box beam, which eliminates the process of welding and cutting the lifting ears, making the operation simpler and more convenient. At the same time, it solves the problem that the high temperature generated during welding and cutting off the lifting ears will cause structural damage to the beam body of the box beam, seriously affecting the mechanical properties of the beam body. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model;
[0017] Figure 2 It is the front view of the utility model;
[0018] Figure 3 It is a schematic diagram of the internal structure of the positioning component of the utility model. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figure 1-3 The utility model provides a technical solution: a box beam lifting device, comprising an I-beam 1, two sliding assemblies 2 are slidably connected to the I-beam 1, a slider 5 is fixedly connected to the lower end of the sliding assembly 2, baffles 12 are fixedly connected to both ends of the I-beam 1, a bidirectional screw rod 3 is rotatably connected between the two baffles 12, the positive and negative threads of the bidirectional screw rod 3 are symmetrically threadedly connected to the slider 5, a cross beam 7 is fixedly connected to the bottom of the slider 5, hooks 6 are provided at both ends of the cross beam 7, the upper end of the hook 6 is sleeved on the cross beam 7, a limiting hole 9 is provided at the upper end of the cross beam 7, and a positioning assembly 8 is installed on the upper part of the hook 6 to fix the hook 6 and the cross beam 7 relatively. By cooperating with the positioning assembly 8 on the hook 6 and the limiting hole 9 on the cross beam 7, the distance between the two hooks 6 can be changed, so that the device can clamp box beams of different sizes, thereby increasing the practicality of the device; an external clamping method is adopted instead of welding the lifting ears on the box beam 13, thereby eliminating the process of welding and cutting the lifting ears, making the operation simpler and more convenient, and at the same time solving the problem that the high temperature generated during welding and cutting off the lifting ears will cause structural damage to the beam body of the box beam 13, seriously affecting the mechanical properties of the beam body.
[0021] The sliding assembly 2 includes a U-shaped mounting frame 21 and two groups of moving wheels 22 rotatably connected to both sides of the inner wall of the U-shaped mounting frame 21. The two groups of moving wheels 22 are arranged on both sides of the web of the I-beam 1, and the moving wheels 22 are rollingly connected to the lower flange of the I-beam 1. The moving wheels 22 can roll on the lower flange of the I-beam 1 to increase the smoothness of the hook 6 when moving.
[0022] The positioning assembly 8 includes a mounting tube 81 fixedly connected to the upper surface of the hook 6, a pull rod 82 is vertically arranged in the mounting tube 81, the middle part of the pull rod 82 is fixedly connected to a limit plate 84, and a reset spring 83 is sleeved on the upper end of the pull rod 82 located at the limit plate 84. The pull rod 82 is clamped in the limit hole 9 to lock the relatively sliding hook 6 and the crossbeam 7, and the reset spring 83 can make the pull rod 82 stably and effectively perform the reset movement.
[0023] A rubber pad 10 is arranged on the inner wall of the hook 6 to prevent the hook and the box beam from squeezing each other and deforming the box beam when the device is hoisting the box beam. At the same time, the rubber pad 10 can increase the friction between the box beam 13 and the hook 6, thereby increasing the safety of the device.
[0024] The upper end of the I-beam 1 is symmetrically fixedly connected with two lifting rings 11. When two lifting rings 11 are provided, the lifting process is more stable.
[0025] Working principle: The operator first adjusts the distance between the two sliding assemblies 2 according to the length of the box beam 13 to be hoisted, starts the rotating motor 4 fixedly connected to the baffle 12, and the output end of the rotating motor 4 is connected to the bidirectional screw 3. The rotating motor 4 drives the bidirectional screw 3 to rotate, thereby controlling the approach and separation of the two sliding assemblies 2. The operator then adjusts the distance between the two hooks 6 according to the cross-sectional size of the box beam 13, pulls the pull rod 82 to control the length of the cross beam 7 extending into the hook 6, and locks the relatively sliding hook 6 and cross beam 7 by clamping the pull rod 82 in the limit hole 9. At the same time, the reset spring 83 can make the pull rod 82 perform the reset movement stably and effectively. The I-beam 1 is installed on the crane through the lifting ring 11, and then the box beam 13 is hoisted to the designated location.
[0026] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. Although the present utility model is described in detail with reference to the above embodiments, it is still possible for the technical solutions recorded in the above embodiments to be modified, or some of the technical features therein to be replaced by equivalents, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A box beam hoisting device, comprising an I-beam (1), characterized in that: Two sliding assemblies (2) are slidably connected to the I-beam (1), a slider (5) is fixedly connected to the lower end of the sliding assembly (2), baffles (12) are fixedly connected to the two ends of the I-beam (1), a bidirectional screw rod (3) is rotatably connected between the two baffles (12), one end of the bidirectional screw rod (3) is connected to the rotating motor (4), the forward and reverse threads of the bidirectional screw rod (3) are symmetrically threadedly connected to the slider (5), the bottom of the slider (5) is fixedly connected to a crossbeam (7), both ends of the crossbeam (7) are provided with hooks (6), the upper end of the hook (6) is sleeved on the crossbeam (7), a limiting hole (9) is provided at the upper end of the crossbeam (7), and a positioning assembly (8) is installed on the upper part of the hook (6) to fix the hook (6) and the crossbeam (7) relatively.
2. A box beam hoisting device according to claim 1, characterized in that: The sliding assembly (2) comprises a U-shaped mounting frame (21) and two groups of moving wheels (22) rotatably connected to the inner wall of the U-shaped mounting frame (21), the two groups of moving wheels (22) being arranged on both sides of the web of the I-beam (1), and the moving wheels (22) being rollingly connected to the lower flange of the I-beam (1).
3. The box beam hoisting device according to claim 1, characterized in that: The positioning assembly (8) comprises a mounting tube (81) fixedly connected to the upper surface of the hook (6), a pull rod (82) being vertically arranged in the mounting tube (81), a middle portion of the pull rod (82) being fixedly connected to a limiting plate (84), and a return spring (83) being sleeved on the upper end portion of the pull rod (82) located on the limiting plate (84).
4. The box beam hoisting device according to claim 1, characterized in that: A rubber pad (10) is provided on the inner wall of the hook (6).
5. The box beam hoisting device according to claim 1, characterized in that: Two lifting rings (11) are symmetrically fixedly connected to the upper end of the I-beam (1).