A pallet limiting installation structure for a vibration test bench

Abstract

This utility model provides a pallet limiting installation structure for a vibration test bench, including a pallet body. The pallet body includes multiple parallel-arranged load-bearing beams and foot blocks, with a certain gap between the foot blocks. A positioning component is installed in the gap, and the positioning component includes reinforcing ribs and reinforced slide rails. Adjusting rods and positioning plates are provided at both ends of the reinforced slide rails. The beneficial effects of this utility model are: when multiple positioning components work together, they can form a three-dimensional limiting system in the longitudinal, transverse, and vertical directions, significantly improving the pallet's resistance to displacement during vibration testing, ensuring the relative position stability between the equipment and the pallet, and between the pallet and the vibration table during the test, and providing a reliable guarantee for the accuracy of test data.

Description

Technical Field

[0001] This utility model mainly relates to the field of vibration testing technology, specifically to a pallet limiting installation structure for a vibration testing bench. Background Technology

[0002] In vibration tests of large equipment, pallets serve as load-bearing and transport carriers and must be securely connected to the vibration table. Existing pallets mostly adopt simple frame structures, supporting the equipment only through foot blocks, and lack dedicated limiting devices. During vibration, relative displacement easily occurs between the equipment and the pallet, and between the pallet and the vibration table. Especially under high-frequency or multi-directional vibration conditions, the displacement can reach several centimeters, leading to distorted test data. Traditional temporary fixing methods, such as rope binding and padding, have problems such as poor adaptability and cumbersome assembly and disassembly. They cannot meet the needs of quick fixing of equipment of different sizes, and are prone to loosening under long-term vibration, posing safety hazards.

[0003] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0004] 1. The technical problem to be solved by the utility model: This utility model provides a pallet limiting installation structure for a vibration test bench, which solves the technical problems existing in the background art.

[0005] 2. Technical Solution: To achieve the above objectives, the technical solution provided by this utility model is as follows: a pallet limiting installation structure for a vibration test bench, comprising a pallet body, wherein the pallet body includes multiple parallel load-bearing crossbeams and foot blocks, wherein there is a certain gap between the multiple foot blocks, and a positioning component is provided in the gap, wherein the positioning component includes reinforcing ribs and reinforcing slide rails, and both ends of the reinforcing slide rails are provided with adjusting rods and positioning plates.

[0006] Furthermore, the reinforcing rib is fixed to the bottom surface of the load-bearing crossbeam, and the reinforcing slide rail is located at the lower end of the reinforcing rib and is fixedly connected to it.

[0007] Furthermore, the reinforced slide rail is provided with a T-shaped groove, and both adjusting rods are slidably connected to the reinforced slide rail through the groove.

[0008] Furthermore, the positioning plate is an L-shaped bent plate, with an adjustment hole on the short side of the positioning plate, a positioning bolt connected to the end face of the adjustment rod in the adjustment hole, and an installation hole on the long side of the positioning plate.

[0009] Furthermore, the positioning plate is detachably connected to the adjusting rod via the positioning bolt, and both the adjusting hole and the mounting hole are oblong holes.

[0010] Furthermore, there is a certain sliding space between the two adjusting rods, and a tension spring is provided in the sliding space. Both adjusting rods are located close to both ends of the reinforced slide rail. Multiple limiting holes are provided on the adjusting rods, and locking pins are provided in the limiting holes.

[0011] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this utility model has the following advantages: When multiple positioning components work together, they can form a three-dimensional limiting system in the longitudinal, lateral and vertical directions, which significantly improves the displacement resistance of the pallet in vibration tests, ensures the relative position stability between the equipment and the pallet, and between the pallet and the vibration table during the test, and provides a reliable guarantee for the accuracy of the test data.

[0012] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the positioning component structure of this utility model; Figure 3 This is a schematic diagram of the positioning component structure from another angle of this utility model; Figure 4 This is an enlarged schematic diagram of a portion of the positioning component of this utility model.

[0014] Figure label: 1. Load-bearing crossbeam; 2. Foot block; 3. Reinforcing rib; 4. Reinforced slide rail; 5. Adjusting rod; 6. Positioning plate; 7. Adjusting hole; 8. Positioning bolt; 9. Mounting hole; 10. Tension spring; 11. Locking pin. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0016] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] See attached document Figure 1-4 A pallet limiting installation structure for a vibration test bench includes a pallet body, which includes multiple parallel load-bearing beams 1 and foot blocks 2. There is a certain gap between the multiple foot blocks 2, and a positioning component is provided in the gap. The positioning component includes reinforcing ribs 3 and reinforced slide rails 4. Both ends of the reinforced slide rails 4 are provided with adjusting rods 5 and positioning plates 6.

[0020] A gap of 20-30cm is reserved between multiple foot piers 2. This gap not only provides installation space for the positioning components but also reduces the overall weight of the pallet. The positioning components are evenly spaced in the gaps between the foot piers 2. The number of positioning components in a single pallet is 3-5 sets, which can be adapted according to the length of the pallet. Each set of positioning components is symmetrically distributed along the length of the load-bearing crossbeam 1.

[0021] The positioning assembly includes reinforcing ribs 3 and reinforced slide rails 4, forming a force transmission skeleton. The top surface of the reinforcing ribs 3 is fixedly connected to the bottom surface of the load-bearing beams 1 by bolts. The length of the reinforcing ribs 3 is adapted to the spacing of the load-bearing beams 1, and both ends extend to the inner side wall of the foot piers 2, which can distribute the vibration load of the equipment to the entire pallet.

[0022] The reinforcing slide rail 4 is located at the lower end of the reinforcing rib 3, and the two are fixed by full welding. The length of the reinforcing slide rail 4 is consistent with the length of the load-bearing crossbeam 1, and the width is smaller than the width gap between two adjacent foot piers 2. This ensures full coverage of the area under the pallet while avoiding positional conflict with the foot piers 2. A T-shaped groove running the entire length of the slide rail is provided inside. The width of the upper edge of the groove matches the cross-sectional width of the adjusting rod 5, which restricts the sliding direction of the adjusting rod 5 and prevents it from falling off.

[0023] The cross-sectional dimensions of the adjusting rod 5 are completely consistent with those of the T-slot, ensuring stability and fit during sliding. It slides and connects with the slide groove, and the inner wall of the slide groove is inlaid with a wear-resistant copper sleeve to reduce the coefficient of sliding friction. The two adjusting rods 5 are respectively set near the two ends of the reinforced slide rail 4, with a sliding space reserved between them. A tension spring 10 is horizontally installed in the sliding space. The two ends of the tension spring 10 are respectively connected to the hanging ring in the middle of the adjusting rod 5 through hooks. In the natural state, the tension spring 10 is in a slightly tensioned state. When the adjusting rod 5 is pulled outward, the tension spring 10 generates elastic tension. After being released, it can automatically drive the adjusting rod 5 to reset, achieving rapid return to its original position.

[0024] Multiple limiting holes are evenly provided on the side wall of the adjusting rod 5 along the length direction, with a hole spacing of 5cm. When the adjusting rod 5 slides to the target position, the locking pin 11 is inserted into the corresponding limiting hole and passes through the side wall of the reinforced slide rail 4 to lock the extension length of the adjusting rod 5, which can effectively prevent the adjusting rod 5 from sliding accidentally during vibration.

[0025] The positioning plate 6 is made of L-shaped bent steel plate with a bending angle of 90°. An adjustment hole 7 is provided on the short side. This hole is oblong and its width is adapted to the diameter of the positioning bolt 8. The positioning bolt 8 passes through the adjustment hole 7 and connects to the threaded hole on the end face of the adjustment rod 5. By loosening the positioning bolt 8, the positioning plate 6 can be rotated up and down around the bolt axis with a rotation angle range of 0-180°. Tightening it can fix the current angle.

[0026] When fixing the equipment, the positioning plate 6 flips upward, and the mounting holes 9 on the long side can be connected to the pre-embedded steel plate at the bottom of the equipment through expansion bolts. The waist-shaped hole design allows for fine-tuning of the position by ±3cm to adapt to the fixing holes of different equipment. When it is necessary to fix it to the vibration table surface, the positioning plate 6 flips downward, and the mounting holes 9 are aligned with the T-slots on the vibration table surface. It is then locked with T-bolts to achieve a rigid connection between the pallet and the vibration table. In summary, the positioning component can achieve three adjustment functions: first, it can adapt to various devices of different widths and lengths by extending and retracting the adjusting rod 5; second, it can switch the fixed object by flipping the positioning plate 6, fixing it to the bottom of the device when flipped up, and fixing it to the vibration table when flipped down; and third, it can achieve fine adjustment of the fixed position through the waist-shaped hole.

[0027] When multiple positioning components work together, they can form a three-dimensional limiting system in the longitudinal, lateral and vertical directions, which significantly improves the displacement resistance of the pallet in vibration tests, ensures the relative position stability between the equipment and the pallet, and between the pallet and the vibration table during the test, and provides a reliable guarantee for the accuracy of the test data.

[0028] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pallet limiting and mounting structure for a vibration test bench, characterized in that: The pallet body includes multiple parallel load-bearing beams (1) and foot blocks (2). There is a certain gap between the multiple foot blocks (2). A positioning component is provided in the gap. The positioning component includes reinforcing ribs (3) and reinforced slide rails (4). Both ends of the reinforced slide rails (4) are provided with adjusting rods (5) and positioning plates (6).

2. The pallet position-limiting mounting structure for a vibration test board according to claim 1, characterized in that: The reinforcing rib (3) is fixed to the bottom surface of the load-bearing crossbeam (1), and the reinforcing slide rail (4) is located at the lower end of the reinforcing rib (3) and is fixedly connected to it.

3. The pallet position-limiting mounting structure for a vibration test board according to claim 1, characterized in that: The reinforced slide rail (4) has a T-shaped groove, and the two adjusting rods (5) are slidably connected to the reinforced slide rail (4) through the groove.

4. The pallet position-limiting mounting structure for a vibration test board according to claim 1, characterized in that: The positioning plate (6) is an L-shaped bent plate. An adjustment hole (7) is provided on the short side of the positioning plate (6). A positioning bolt (8) connected to the end face of the adjustment rod (5) is provided in the adjustment hole (7). An installation hole (9) is provided on the long side of the positioning plate (6).

5. The pallet limiting and mounting structure for vibration test benches according to claim 4, characterized in that: The positioning plate (6) is detachably connected to the adjusting rod (5) via the positioning bolt (8), and both the adjusting hole (7) and the mounting hole (9) are oblong holes.

6. The pallet position-limiting mounting structure for a vibration test board according to claim 1, characterized by: There is a certain sliding space between the two adjusting rods (5), and a tension spring (10) is provided in the sliding space. Both adjusting rods (5) are located close to both ends of the reinforced slide rail (4). Multiple limiting holes are provided on the adjusting rods (5), and locking pins (11) are provided in the limiting holes.

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