Portal crane end beam with shock absorbing buffer structure

Abstract

The utility model belongs to portal crane end beam technical field, and disclose a kind of portal crane end beam with damping buffer structure, including fixed frame, the surface of fixed frame is connected with end beam body, the front and back of end beam body are slidably connected with four pulleys, the utility model provides support force for pulley by the positioning block and locating groove of sliding setting, to improve the stability of pulley sliding work on end beam body, by the compression shrinkage and outward stretching cooperation of first damping spring and second damping spring, to provide buffer force for sliding fixed rod, to play the role of damping, and the inside of limit slide and the surface of fixed rod slide, thus further provide stable support force for limit slide, as far as possible avoid the skew situation of limit slide in the inside of end beam body, to assist to improve the stability of limit slide as a whole for pulley to provide damping force.

Description

Technical Field

[0001] This utility model belongs to the technical field of gantry crane end beams, specifically a gantry crane end beam with a shock-absorbing and buffering structure. Background Technology

[0002] Gantry cranes are a variation of bridge cranes, mainly used in ports for loading and unloading cargo and bulk materials in outdoor freight yards and material yards. Their metal structure resembles a portal frame, with two legs installed under the main beam, allowing them to move directly on ground-level tracks. The main beam can have cantilever beams extending outwards at both ends. Gantry cranes are characterized by high site utilization, large operating range, wide adaptability, and strong versatility, and are widely used in port freight yards. The end beams are the core structural components of bridge cranes, forming a bridge support system through connection with the main beam. They bear the functions of load transfer and movement along the tracks; therefore, the seismic resistance of the end beams themselves is crucial.

[0003] Meanwhile, the crane end beam vibration damping device with application number CN202320010503.1 includes: an end beam body; two vibration damping grooves, which are respectively opened at both ends of the end beam body; two vibration damping components, which are respectively disposed inside the two vibration damping grooves; wherein, the vibration damping component includes a vibration damping plate slidably connected inside the vibration damping groove, and at least four vibration damping springs are fixedly connected between one side of the vibration damping plate and one side of the inner wall of the vibration damping groove.

[0004] However, the following problems were found in the implementation of the relevant technology: although a shock-absorbing spring was set, a limit structure was not set, which resulted in the pulley lacking a stable support structure on the surface of the end beam, thereby affecting the stability of the pulley sliding on the surface of the end beam. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a gantry crane end beam with a shock-absorbing and buffering structure, which has the advantages of improving the sliding stability of the pulley on the end beam surface and providing effective shock-absorbing support.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gantry crane end beam with a shock-absorbing and buffering structure, including a fixed frame, an end beam body connected to the surface of the fixed frame, four pulleys slidably connected to the front and back of the end beam body, a fixed plate rotatably connected to the surface of every two pulleys through a bearing, a reinforcing rod connected to the surface of the two fixed plates, and shock-absorbing components and stabilizing components respectively provided on the end beam body.

[0007] Preferably, the shock absorption assembly includes two fixed rods, two first shock absorption springs, and two second shock absorption springs. The two fixed rods are both disposed on the inner side of the end beam body, and the surfaces of the two fixed rods are slidably connected to limit sliders. The two first shock absorption springs are respectively sleeved on the outer side of the two fixed rods, and the two second shock absorption springs are respectively sleeved on the outer side of the two fixed rods.

[0008] Preferably, the top and bottom ends of the two limiting sliders are slidably connected to the inner wall of the end beam body.

[0009] Preferably, the two ends of the two first damping springs are respectively connected to one side of the two limiting sliders and the inner wall of the end beam body.

[0010] Preferably, the two ends of the two second damping springs are respectively connected to the other side of the two limiting sliders and the inner wall of the end beam body.

[0011] Preferably, the stabilizing component includes four positioning slots, which are symmetrically arranged in pairs on the inner side of the end beam body, and positioning blocks are slidably connected to the inner side of each of the four positioning slots.

[0012] Preferably, each pair of positioning blocks is connected to the surface of each of the fixing plates.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention utilizes a sliding positioning block and positioning groove to provide support for the pulley, thereby improving the stability of the pulley's sliding operation on the end beam body. The combination of compression and outward extension of the first and second damping springs provides a buffering force for the sliding fixed rod, thus playing a role in shock absorption. Furthermore, the inner side of the limiting slider slides against the surface of the fixed rod, further providing stable support for the limiting slider and minimizing the possibility of the limiting slider tilting inside the end beam body. This further enhances the overall stability of the limiting slider in providing shock absorption for the pulley. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the front planar structure of the present invention;

[0017] Figure 3 This is one of the partial cross-sectional structural schematic diagrams of this utility model;

[0018] Figure 4 This is a second partial cross-sectional structural schematic diagram of the present invention;

[0019] Figure 5 This utility model Figure 4 A magnified structural diagram at point A.

[0020] In the diagram: 1. Fixture;

[0021] 2. Shock-absorbing assembly; 21. Fixing rod; 22. Limiting slider; 23. First shock-absorbing spring; 24. Second shock-absorbing spring;

[0022] 3. Stabilizing component; 31. Positioning groove; 32. Positioning block;

[0023] 4. End beam body; 5. Pulley; 6. Fixing plate; 7. Reinforcing rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 5 As shown, this utility model provides a gantry crane end beam with a shock-absorbing and buffering structure, including a fixed frame 1, an end beam body 4 connected to the surface of the fixed frame 1, four pulleys 5 slidably connected to the front and back of the end beam body 4, a fixed plate 6 rotatably connected to the surface of every two pulleys 5 through a bearing, a reinforcing rod 7 connected to the surface of the two fixed plates 6, and shock-absorbing components 2 and stabilizing components 3 respectively provided on the end beam body 4.

[0026] Specifically, the shock absorption assembly 2 includes two fixed rods 21, two first shock absorption springs 23 and two second shock absorption springs 24. The two fixed rods 21 are both located on the inner side of the end beam body 4. The surfaces of the two fixed rods 21 are slidably connected to limit sliders 22. The two first shock absorption springs 23 are respectively sleeved on the outer side of the two fixed rods 21, and the two second shock absorption springs 24 are respectively sleeved on the outer side of the two fixed rods 21.

[0027] Furthermore, the top and bottom ends of the two limiting sliders 22 are slidably connected to the inner wall of the end beam body 4.

[0028] Furthermore, the two ends of the two first damping springs 23 are respectively connected to one side of the two limiting sliders 22 and the inner wall of the end beam body 4.

[0029] It is worth noting that the two ends of the two second damping springs 24 are respectively connected to the other side of the two limit sliders 22 and the inner wall of the end beam body 4.

[0030] It is worth noting that the stabilizing component 3 includes four positioning slots 31, which are symmetrically arranged in pairs on the inner side of the end beam body 4. Positioning blocks 32 are slidably connected to the inner side of each of the four positioning slots 31.

[0031] It is worth mentioning that each pair of positioning blocks 32 is connected to the surface of each fixing plate 6.

[0032] The first damping spring 23 and the second damping spring 24 are existing technologies and will not be described in detail. Additionally, this utility model also includes a power supply, controller, and switch, which are not the main technical points of this patent and will not be described in detail. The "front, back, left, and right" perspectives of this device are... Figure 1 The direction shown in the diagram is the reference.

[0033] Working principle: First, all four pulleys 5 slide on the surface of the end beam body 4. As the pulleys 5 slide, the positioning blocks 32 on the fixing plate 6 slide inside the positioning groove 31, thereby limiting the movement and improving the stability of the pulleys 5 sliding on the end beam body 4. At the same time as the pulleys 5 slide, the two limiting sliders 22 located inside the end beam body 4 slide against the inner wall of the fixing rod 21. When the limiting slider 22 moves to the left, the first damping spring 23 is compressed and contracted, and the second damping spring 24 is stretched by the pulling force. Similarly, when the limiting slider 22 moves to the right, the second damping spring 23 is stretched by the pulling force. The damping spring 24 will compress and contract, and the first damping spring 23 will be stretched by the pulling force. The cooperation of the two first damping springs 23 and the two second damping springs 24 will provide a buffering force for the sliding fixed rod 21, thereby playing a role in shock absorption. Furthermore, the inner side of the limiting slider 22 slides against the surface of the fixed rod 21, thus providing a stable support force for the limiting slider 22 and avoiding the situation of the limiting slider 22 tilting and swaying inside the end beam body 4 as much as possible. This helps to improve the overall stability of the limiting slider 22 in providing shock absorption force to the pulley 5.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gantry crane end beam with a shock-absorbing and buffering structure, comprising a fixed frame (1), characterized in that: The surface of the fixed frame (1) is connected to the end beam body (4). The front and back of the end beam body (4) are slidably connected to four pulleys (5). The surfaces of every two pulleys (5) are rotatably connected to a fixed plate (6) through a bearing. The surfaces of the two fixed plates (6) are connected to a reinforcing rod (7). The end beam body (4) is respectively provided with a shock-absorbing component (2) and a stabilizing component (3).

2. The gantry crane end beam with a shock-absorbing and buffering structure according to claim 1, characterized in that: The shock absorption assembly (2) includes two fixed rods (21), two first shock absorption springs (23) and two second shock absorption springs (24). The two fixed rods (21) are both located on the inner side of the end beam body (4). The surfaces of the two fixed rods (21) are slidably connected to limit sliders (22). The two first shock absorption springs (23) are respectively sleeved on the outer side of the two fixed rods (21), and the two second shock absorption springs (24) are respectively sleeved on the outer side of the two fixed rods (21).

3. The gantry crane end beam with a shock-absorbing and buffering structure according to claim 2, characterized in that: The top and bottom ends of the two limiting sliders (22) are slidably connected to the inner wall of the end beam body (4).

4. The gantry crane end beam with a shock-absorbing and buffering structure according to claim 2, characterized in that: The two ends of the first shock-absorbing springs (23) are respectively connected to one side of the two limiting sliders (22) and the inner wall of the end beam body (4).

5. A gantry crane end beam with a shock-absorbing and buffering structure according to claim 2, characterized in that: The two ends of the two second damping springs (24) are respectively connected to the other side of the two limiting sliders (22) and the inner wall of the end beam body (4).

6. A gantry crane end beam with a shock-absorbing and buffering structure according to claim 2, characterized in that: The stabilizing component (3) includes four positioning slots (31), which are symmetrically arranged in pairs on the inner side of the end beam body (4). Each of the four positioning slots (31) is slidably connected to a positioning block (32).

7. A gantry crane end beam with a shock-absorbing and buffering structure according to claim 6, characterized in that: Each pair of positioning blocks (32) is connected to the surface of each fixing plate (6).

Images