A large-tonnage hoisting test bench

Abstract

The utility model relates to mechanical technical field discloses a big tonnage hoisting test bench, including the bottom plate, the bottom plate upper surface fixedly connected with stand, the bottom plate upper surface fixedly connected with the bearing square box, the stand outer wall is provided with the guide component, the guide component includes slide rail, the slide rail fixedly connected in the stand outer wall, the slide rail outer wall slidingly connected with connecting block no.

Description

Technical Field

[0001] This utility model relates to the field of mechanical technology, and in particular to a large-tonnage hoisting test bench. Background Technology

[0002] With the rapid development of heavy industry, many components weigh over 500 tons. To verify the reliability of the lifting lugs of these components, lifting tests are required, necessitating the use of heavy-duty lifting equipment. Currently, lifting equipment weighing over 500 tons requires specialized lifting tools to meet the lifting requirements, resulting in extremely high costs.

[0003] To reduce testing costs and meet specific testing requirements, the industry typically designs dedicated test benches. These benches generally include a base, columns, and a lifting platform driven by a hydraulic system. In these designs, to guide the movement of the lifting platform, simple guide sleeves or sliders are usually installed on the platform, allowing it to directly contact and slide along the surface of the column. The lifting platform maintains vertical movement by relying on the contact between the guide sleeves and the four sides of the column, and uses the thrust of hydraulic cylinders to lift heavy objects, thus simulating a lifting process.

[0004] However, due to the large size and difficulty in precisely aligning the center of gravity of heavy workpieces, uneven loading is easily generated during lifting, resulting in a huge overturning moment on the lifting platform. Traditional guide sleeves and columns require a certain clearance to ensure smooth sliding; under the influence of a huge overturning moment, this clearance is amplified, causing the entire lifting platform, along with the workpiece, to sway and tilt significantly. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a large-tonnage hoisting test bench, which aims to improve the problem of uneven load during hoisting due to the large size of the workpiece and the difficulty in accurately aligning the center of gravity.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a large-tonnage hoisting test bench, including a base plate, a column fixedly connected to the upper surface of the base plate, a load-bearing box fixedly connected to the upper surface of the base plate, and a guide component provided on the outer wall of the column;

[0007] The guide assembly includes a slide rail, which is fixedly connected to the outer wall of the column. A connecting block is slidably connected to the outer wall of the slide rail. A perforated plate is fixedly connected to the outer wall of the connecting block. A roller is fixedly connected to the outer wall of the perforated plate. A sliding groove is opened inside the column. A lifting beam is fixedly connected to the outer wall of the perforated plate. A hydraulic rod is fixedly connected to the upper surface of the load-bearing box. The output end of the hydraulic rod is fixedly connected to the lower surface of the lifting beam.

[0008] Furthermore, a second perforated plate is fixedly connected to the lower surface of the lifting beam, an installation column is slidably connected inside the second perforated plate, a second connecting block is fixedly connected to the outer wall of the installation column, a lifting ring is provided inside the second connecting block, a lifting sling is fixedly connected to the outer wall of the lifting ring, and an installation assembly is provided on the inner wall of the second perforated plate.

[0009] Furthermore, the installation assembly includes a locking block, the outer wall of which is slidably connected to the inner wall of the second perforated plate, a sliding plate fixedly connected to the outer wall of the locking block, a sliding rod fixedly connected to the outer wall of the sliding plate, a fixed rod slidably connected to the outer wall of the sliding rod, and a spring sleeved on the outer wall of the fixed rod.

[0010] Furthermore, one end of the spring is fixedly connected to the outer wall of the sliding plate, and the other end of the spring is fixedly connected to the inner wall of the mounting column.

[0011] Furthermore, the outer wall of the card block is slidably connected to the inner wall of the mounting column, and the outer wall of the sliding plate is slidably connected to the inner wall of the mounting column.

[0012] Furthermore, one end of the fixing rod is fixedly connected to the inner wall of the mounting column, and the lifting ring is disposed on one side of the outer wall of the mounting column.

[0013] Furthermore, the hydraulic rod is located on one side of the outer wall of the column, and the lifting beam is located above the base plate.

[0014] Furthermore, the second perforated plate is disposed above the base plate, and the first connecting block is disposed on one side of the outer wall of the column.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, by setting a slide rail on the outer wall of the column and allowing the connecting block to slide along the slide rail, while using the rollers fixed on the perforated plate to slide in the slide groove inside the column, a double guide structure is formed. When the hydraulic rod drives the lifting beam to perform lifting operations, this double guide structure can provide a stable and reliable motion trajectory for the lifting beam, effectively preventing the lifting beam from shaking, shifting or tilting when carrying large tonnage workpieces, greatly improving the stability and safety of the lifting process, and ensuring the accuracy and reliability of the test data.

[0017] 2. In this utility model, by setting up installation components and utilizing the cooperation between the locking block, spring and mounting column, the fast locking and releasing of the lifting sling is realized. The operator only needs to press the locking block to lock the mounting column. The operation is simple and quick, which significantly simplifies the loading and unloading process of the workpiece, shortens the test preparation time, reduces the labor intensity of the operator, and makes the use of the entire test bench more efficient and convenient. Attached Figure Description

[0018] Figure 1This is a three-dimensional structural diagram of a large-tonnage hoisting test bench proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the lifting beam section of a large-tonnage hoisting test bench proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of a portion of the connecting block of a large-tonnage hoisting test bench proposed in this utility model;

[0021] Figure 4 for Figure 1 Enlarged view of point A in the image;

[0022] Figure 5 This is a schematic diagram of the clamping block structure of a large-tonnage hoisting test bench proposed in this utility model.

[0023] Legend:

[0024] 1. Base plate; 2. Column; 3. Load-bearing box; 4. Hydraulic rod; 5. Lifting beam; 6. Lifting slings; 7. Hole plate one; 8. Connecting block one; 9. Slide rail; 10. Roller; 11. Slide groove; 12. Hole plate two; 13. Mounting column; 14. Connecting block two; 15. Lifting ring; 16. Locking block; 17. Sliding plate; 18. Spring; 19. Sliding rod; 20. Fixing rod. Detailed Implementation

[0025] 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.

[0026] Reference Figures 1-3 An embodiment of this utility model is provided: a large-tonnage hoisting test bench, including a base plate 1, a column 2 fixedly connected to the upper surface of the base plate 1 to provide vertical support for the lifting beam 5, a load-bearing box 3 fixedly connected to the upper surface of the base plate 1 for installing and supporting hydraulic rods 4, and a guide component provided on the outer wall of the column 2.

[0027] The guide assembly includes a slide rail 9, which serves as a track fixed to the outer wall of the column 2 to guide the connecting block 8 to slide stably. The slide rail 9 is fixedly connected to the outer wall of the column 2, and the connecting block 8 is slidably connected to the outer wall of the slide rail 9, sliding along the slide rail 9 on the outer wall of the column 2 to provide the first level of guidance for the lifting beam 5. A perforated plate 7 is fixedly connected to the outer wall of the connecting block 8, connecting the lifting beam 5 and the guide assembly to transmit the lifting motion. A roller 10 is fixedly connected to the outer wall of the perforated plate 7, rolling in the groove 11 inside the column 2. To provide a second guide for the lifting beam 5, the column 2 has a groove 11 inside, which serves as the internal track of the column 2. The roller 10 is constrained to roll inside it to achieve stable guidance. The lifting beam 5 is fixedly connected to the outer wall of the perforated plate 7. It moves upward under the push of the hydraulic rod 4 and drives the guide assembly and the workpiece to lift as a whole. The upper surface of the load-bearing box 3 is fixedly connected to the hydraulic rod 4, which provides a stable upward thrust for the lifting beam 5 to achieve the lifting of the workpiece. The output end of the hydraulic rod 4 is fixedly connected to the lower surface of the lifting beam 5.

[0028] Specifically, the output end of the hydraulic rod 4 extends upward, applying a stable thrust to the lower surface of the lifting beam 5, driving the lifting beam 5 and the orifice plate 7 fixed on it to move vertically upward. During the ascent of the lifting beam 5, the connecting block 8 fixed on the orifice plate 7 slides along the slide rail 9 fixed on the outer wall of the column 2, providing the main motion guidance. At the same time, the roller 10 fixed on the outer wall of the orifice plate 7 rolls forward in the slide groove 11 opened inside the column 2. The dual guidance of the slider and the roller 10 ensures the stability of the lifting beam 5 throughout the entire lifting stroke, effectively providing stable guidance for the movement of the workpiece and ensuring the safety and smoothness of the test.

[0029] Reference Figure 4 and Figure 5A perforated plate 12 is fixedly connected to the lower surface of the lifting beam 5, providing mounting holes for the mounting column 13 and locking it in conjunction with the mounting assembly. The mounting column 13 is slidably connected inside the perforated plate 12 to support the lifting sling 6, and the workpiece can be loaded and unloaded by locking or releasing the locking block 16. A connecting block 14 is fixedly connected to the outer wall of the mounting column 13, and a lifting ring 15 is provided inside the connecting block 14. The lifting sling 6 is fixedly connected to the outer wall of the lifting ring 15 for direct connection with the workpiece to be tested. The mounting assembly is provided on the inner wall of the perforated plate 12, including the locking block 16, which can quickly lock and unlock the mounting column 13 by engaging or disengaging from the slot on the mounting column 13. The outer wall of the locking block 16 is slidably connected to the inner wall of the perforated plate 12, and a sliding plate 17 is fixedly connected to the outer wall of the locking block 16, moving under the action of the locking block 16. The sliding plate 17 is fixedly connected to the outer wall of the sliding plate 17, and the sliding rod 19 is slidably connected to the outer wall of the sliding rod 19. The fixed rod 20 is sleeved on the outer wall of the fixed rod 20, which provides a rebound force to make the locking block 16 automatically lock into the slot and be compressed when unlocking. One end of the spring 18 is fixedly connected to the outer wall of the sliding plate 17, and the other end of the spring 18 is fixedly connected to the inner wall of the mounting column 13. The outer wall of the locking block 16 is slidably connected to the inner wall of the mounting column 13, the outer wall of the sliding plate 17 is slidably connected to the inner wall of the mounting column 13, one end of the fixed rod 20 is fixedly connected to the inner wall of the mounting column 13, the lifting ring 15 is set on one side of the outer wall of the mounting column 13, the hydraulic rod 4 is set on one side of the outer wall of the column 2, the lifting beam 5 is set above the base plate 1, the hole plate 2 12 is set above the base plate 1, and the connecting block 1 8 is set on one side of the outer wall of the column 2.

[0030] Specifically, the workpiece to be tested is first connected to the sling 6. Then, the mounting post 13 with the sling 6 is inserted into the second hole plate 12 below the lifting beam 5. By pressing the locking block 16 on the mounting assembly inward, the locking block 16 will drive the sliding plate 17 fixed to it to compress the spring 18 and slide on the inner wall of the mounting post 13. When the locking block 16 moves to the preset slot position inside the mounting post 13, the locking block 16 will be locked into the slot under the elastic force of the spring 18, thereby firmly locking the mounting post 13 in the second hole plate 12, completing the rapid loading of the workpiece. When the test is completed and the workpiece needs to be removed, simply rotate the locking block 16. The inclined surface set on it will abut against the inner wall of the mounting post 13, push the locking block 16 back and squeeze the spring 18 again. When the locking block 16 is completely disengaged from the slot of the mounting post 13, the mounting post 13 can be slid out and removed.

[0031] Working principle: When the large-tonnage hoisting test bench is needed, first put the workpiece on the outer wall of the sling 6, and then press the locking block 16. The movement of the locking block 16 will drive the sliding plate 17 to squeeze the spring 18 to slide on the inner wall of the mounting column 13. When the locking block 16 is engaged in the slot opened inside the mounting column 13, the mounting column 13 can be fixed. When the workpiece needs to be removed, simply rotate the locking block 16. The inclined surface of the locking block 16 will abut against the inner wall of the mounting column 13, so that the locking block 16 squeezes the spring 18. At this time, when the locking block 16 is disengaged from the slot opened inside the mounting column 13, the mounting column 13 can be slid out and removed.

[0032] Furthermore, after the mounting column 13 is installed inside the orifice plate 12, the hydraulic rod 4 is activated, and the output end of the hydraulic rod 4 pushes the lifting beam 5 upward. When the lifting beam 5 moves upward, it will drive the roller 10 fixed on the outer wall of the orifice plate 7 to slide in the groove 11 opened inside the column 2. At the same time, during the movement of the orifice plate 7, it will drive the connecting block 8 to slide on the outer wall of the slide rail 9, effectively providing stable guidance for the movement of the workpiece.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A large tonnage hoisting test bench comprising a base plate (1), characterized in that: A column (2) is fixedly connected to the upper surface of the base plate (1), and a load-bearing square box (3) is fixedly connected to the upper surface of the base plate (1). A guide component is provided on the outer wall of the column (2). The guide assembly includes a slide rail (9), which is fixedly connected to the outer wall of the column (2). A connecting block (8) is slidably connected to the outer wall of the slide rail (9). A perforated plate (7) is fixedly connected to the outer wall of the connecting block (8). A roller (10) is fixedly connected to the outer wall of the perforated plate (7). A sliding groove (11) is opened inside the column (2). A lifting beam (5) is fixedly connected to the outer wall of the perforated plate (7). A hydraulic rod (4) is fixedly connected to the upper surface of the load-bearing box (3). The output end of the hydraulic rod (4) is fixedly connected to the lower surface of the lifting beam (5).

2. A large tonnage hoisting test bed according to claim 1, characterized in that: The lower surface of the lifting beam (5) is fixedly connected to a perforated plate (12), and an installation column (13) is slidably connected inside the perforated plate (12). A connecting block (14) is fixedly connected to the outer wall of the installation column (13). A lifting ring (15) is provided inside the connecting block (14). A lifting sling (6) is fixedly connected to the outer wall of the lifting ring (15). An installation assembly is provided on the inner wall of the perforated plate (12).

3. A large tonnage hoisting test stand according to claim 2, characterized in that: The installation assembly includes a locking block (16), the outer wall of which is slidably connected to the inner wall of the second perforated plate (12), a sliding plate (17) is fixedly connected to the outer wall of the locking block (16), a sliding rod (19) is fixedly connected to the outer wall of the sliding plate (17), a fixed rod (20) is slidably connected to the outer wall of the sliding rod (19), and a spring (18) is sleeved on the outer wall of the fixed rod (20).

4. A large tonnage hoisting test stand according to claim 3, characterized in that: One end of the spring (18) is fixedly connected to the outer wall of the sliding plate (17), and the other end of the spring (18) is fixedly connected to the inner wall of the mounting column (13).

5. A large-tonnage hoisting test bench according to claim 3, characterized in that: The outer wall of the card block (16) is slidably connected to the inner wall of the mounting column (13), and the outer wall of the sliding plate (17) is slidably connected to the inner wall of the mounting column (13).

6. The large-tonnage hoisting test bench according to claim 3, characterized in that: One end of the fixing rod (20) is fixedly connected to the inner wall of the mounting column (13), and the lifting ring (15) is set on one side of the outer wall of the mounting column (13).

7. A large tonnage hoisting test stand according to claim 1, characterized in that: The hydraulic rod (4) is located on one side of the outer wall of the column (2), and the lifting beam (5) is located above the base plate (1).

8. A large tonnage hoisting test stand according to claim 2, characterized in that: The second perforated plate (12) is located above the base plate (1), and the first connecting block (8) is located on one side of the outer wall of the column (2).

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