A lift load testing device

Abstract

The utility model relates to a lift load test device, relate to load test field to solve the problem of lift load loading equipment structure complex, high operating difficulty in prior art static test. The utility model discloses lift load test device includes support subassembly, load amplification subassembly, counterweight loading end and force measuring component, load amplification subassembly sets up on support subassembly, one end of load amplification subassembly is connected to counterweight loading end, the other end of load amplification subassembly is connected to the upper connecting end of force measuring component, and the lower connecting end of force measuring component is connected to the force application part of the piece to be tested, and the counterweight is loaded in counterweight loading end, and the force application part of the piece to be tested is applied to through force measuring component after the amplification of load amplification subassembly to the counterweight, and the lift load test is completed. The utility model provides a kind of lift load loading test device with simple structure, convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of load testing technology, and in particular to a lift load testing device. Background Technology

[0002] In aircraft development, the static test's lift load loading stage is crucial for verifying the performance of lifting surface structures such as wings and tail fins. Current mainstream solutions employ hydraulic actuator loading systems, requiring controllers, control software, hydraulic pump stations, and hydraulic pipelines. However, this system has significant drawbacks: high overall cost, complex operation, and extended testing cycles due to hydraulic pipeline installation, maintenance, and parameter calibration, resulting in persistently high overall costs.

[0003] Therefore, how to provide a lifting load loading test device that is simple in structure and easy to operate is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] Based on the above analysis, the present invention aims to provide a lift load loading test device with a simple structure and convenient operation, so as to solve the problems of complex overall structure and high operation difficulty in the prior art.

[0005] The objective of this utility model is mainly achieved through the following technical solutions:

[0006] A lifting load testing device includes: a support assembly, a load amplification assembly, a counterweight loading end, and a force measuring assembly;

[0007] The load amplification component is mounted on the support component. Both ends of the load amplification component are connected to the counterweight loading end and the upper connection end of the force measuring component, respectively. The lower connection end of the force measuring component is connected to the force application part of the test piece.

[0008] A counterweight is loaded at the counterweight loading end. The load amplification component amplifies the counterweight and then applies it to the force application part of the test piece through the force measuring component to complete the lift load test.

[0009] Furthermore, the counterweight loading end is a water bag or a water tank.

[0010] Furthermore, the counterweight loading end can continuously inject or release water, thereby changing the loading counterweight of the counterweight loading end.

[0011] Furthermore, the counterweight loading end includes water supply and drainage pipes.

[0012] Furthermore, the load amplification assembly includes a traction cable and a pulley system.

[0013] Furthermore, the pulley system is a pulley system set according to a 1:4 force-saving ratio.

[0014] Furthermore, the pulley block includes a first fixed pulley, a sub-pulley block, and a second fixed pulley;

[0015] The traction cable includes a first segment and a second segment; one end of the first segment is connected to the counterweight loading end after changing direction via the first fixed pulley, and the other end of the first segment is fixed to the support assembly after being wound around the sub-pulley group; one end of the second segment is connected to the movable pulley of the sub-pulley group, and the other end of the second segment is connected to the force measuring assembly after changing direction via the second fixed pulley.

[0016] Furthermore, the sub-pulley also includes a third fixed pulley.

[0017] Furthermore, the pulley block is mounted on the crossbeam of the support assembly.

[0018] Furthermore, a groove is provided on the crossbeam, and the movable pulley of the sub-pulley group reciprocates in the groove under the traction of the counterweight loading end.

[0019] Compared with the prior art, the present invention can achieve at least the following beneficial effects:

[0020] (1) The lifting load test device of this utility model includes a support component, a load amplification component, a counterweight loading end and a force measuring component. The entire device is fixed by the support component. After the counterweight is loaded at the counterweight loading end, the load is amplified by the load amplification component and then transmitted to the force application part of the test piece by the force measuring component, so that the test can be carried out. The overall structure of the device is simple and the operation is easy. There is no need for complicated debugging, pipeline sealing and maintenance during use, which significantly shortens the test preparation and implementation cycle and improves the efficiency of lifting load test. Ordinary technicians can operate it after simple training.

[0021] (2) In the lifting load test device of this utility model, the counterweight loading end is a water bag or water tank, which can be flexibly adjusted by increasing or decreasing the water volume to achieve continuous stepless uniform loading and prevent load impact during loading. The operation of increasing or decreasing the counterweight at the counterweight loading end is convenient and saves labor. The water volume at the counterweight loading end can be flexibly adjusted to accurately adjust the counterweight loaded at the counterweight loading end, so as to achieve a high degree of matching between the lifting load and the design value of the test piece.

[0022] (3) In the lifting load test device of this utility model, the crossbeam load amplification component of the support component, the pulley group set according to the actual use of the predetermined force-saving ratio, the counterweight load is amplified by the pulley group, and it can be applied to the loading of ton-level large loads. Attached Figure Description

[0023] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0024] Figure 1 This is a schematic diagram of the lifting load testing device in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the load amplification component in an embodiment of the present invention;

[0026] Figure 3 This is a schematic diagram of the force measuring component in an embodiment of the present invention.

[0027] Figure label:

[0028] 1-Support component, 11-Crossbeam, 111-Slide groove, 12-Column;

[0029] 2-Load amplification assembly, 21-Traction cable, 211-First sub-segment, 212-Second sub-segment, 22-Pulley block, 221-First fixed pulley, 222-Sub-pulley block, 2221-Third fixed pulley, 2222-Double linkage pulley, 223-Second fixed pulley;

[0030] 3-Counterweight loading end;

[0031] 4-Force measuring component, 41-Upper connection end, 42-Lower connection end. Detailed Implementation

[0032] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0033] Example 1

[0034] A specific embodiment of this utility model discloses a lift load testing device, such as... Figure 1 It includes: a support component 1, a load amplification component 2, a counterweight loading end 3, and a force measuring component 4. (As shown...) Figure 3 As shown, the force measuring component 4 includes an upper connecting end 41 and a lower connecting end 42.

[0035] The load amplification component is mounted on the support component 1. One end of the load amplification component 2 is connected to the counterweight loading end 3, and the other end of the load amplification component 2 is connected to the upper connection end 41 of the force measuring component 4. The lower connection end 42 of the force measuring component 4 is connected to the force application part of the test piece.

[0036] A counterweight is loaded at the counterweight loading end 3. The load amplification component 2 amplifies the counterweight and then applies it to the force application part of the test piece through the force measuring component 4 to complete the lift load test.

[0037] The lifting load testing device of this utility model provides stable support through the support component 1, realizes counterweight amplification with the help of the load amplification component 2, and accurately monitors the load with the force measuring component 4. It can efficiently apply load to the test piece, simplify the test process, and ensure the stability of the test process and the accuracy of load data.

[0038] Furthermore, the counterweight loading end 3 is a water bag or water tank. Compared with traditional solid counterweights, it is easier to obtain materials, has lower cost, and allows for flexible weight adjustment without frequent replacement of counterweight blocks, greatly improving the flexibility and ease of operation in applying loads.

[0039] By continuously injecting or releasing water into the counterweight loading end 3, the load weight of the counterweight loading end 3 can be changed. This allows for continuous and stable adjustment of the load, avoiding load shocks caused by sudden load changes when the solid counterweight is added or removed. By continuously and uniformly loading water into the counterweight loading end 3, a gradual load closer to actual working conditions can be simulated, improving the authenticity and reliability of the test results.

[0040] Furthermore, the counterweight loading end 3 includes water supply and drainage pipes. The inclusion of water supply and drainage pipes at the counterweight loading end 3 makes water injection and drainage operations more convenient and controllable, eliminating the need for manual handling or dumping of water sources, reducing manual intervention, lowering operational difficulty, and ensuring stable load adjustment speed, further optimizing the test operation process.

[0041] In the lift load test, the test piece often needs to withstand a large lift load to simulate the actual working conditions. In this embodiment, the load amplification component 2 is used to complete the large lift load test within the load-bearing range of the support component 1.

[0042] Furthermore, the load amplification assembly 2 includes a traction cable 21 and a pulley system 22 set according to a predetermined force-saving ratio. The traction cable 21 is wound around the pulley system 22, with one end connected to the counterweight loading end 3 and the other end connected to the upper connection end 41 of the force measuring assembly 4. The load amplification assembly 2 has a simple structure, high transmission efficiency, and can accurately achieve the preset load amplification effect. It is also low-cost, easy to maintain, and the force-saving ratio can be flexibly adjusted according to experimental requirements, improving the applicability of the device.

[0043] For example, in some embodiments, such as Figure 2 As shown, the pulley block 22 is a pulley block set according to a 1:4 force-saving ratio.

[0044] Furthermore, the pulley block 22, set according to a 1:4 force-saving ratio, includes a first fixed pulley 221, a sub-pulley block 222, and a second fixed pulley 223; the traction cable 21 includes a first sub-segment 211 and a second sub-segment 212; one end of the first sub-segment 211 is connected to the counterweight loading end 3 after changing direction through the first fixed pulley 221, and the other end of the first sub-segment 211 is fixed to the support assembly 1 after being wound around the sub-pulley block 222; one end of the second sub-segment 212 is connected to the movable pulley 2222 of the sub-pulley block 222, and the other end of the second sub-segment 212 is connected to the force measuring assembly 4 after changing direction through the second fixed pulley 223.

[0045] Furthermore, the sub-pulley assembly 222 also includes a third fixed pulley 2221. The traction cable 21 forms four cable segments between the third fixed pulley 2221 and the double-linkage pulley 2222 to jointly bear the lift load. The lift load is transmitted to the sub-pulley assembly 222 sequentially through the force measuring component 4 and the second sub-segment 212. After being shared by the four cable segments of the third fixed pulley 2221 and the double-linkage pulley 2222, 1 / 4 of the lift load is finally changed in direction through the first fixed pulley 221 and connected to the counterweight loading end 3, so as to achieve the purpose of completing the large lift load test by using reasonable counterweight loading within the load-bearing range of the support component 1.

[0046] Furthermore, in some embodiments, the support assembly 1 is a gantry frame, which includes a crossbeam 11 and columns 12. A pulley block 22 is mounted on the crossbeam 11 of the support assembly 1. The column 12 structure of the support assembly 1 provides support for the crossbeam 11. After the pulley block 22 is mounted on the crossbeam 11 at a certain height, it provides working space for the force measuring assembly 4 to apply the lifting load.

[0047] Furthermore, a groove 111 is provided on the crossbeam 11, and the movable pulley of the sub-pulley block 222 reciprocates in the groove 111 under the traction of the counterweight loading end 3.

[0048] The crossbeam 11 has a groove 111 for the reciprocating motion of the movable pulley of the pulley block 222, which eliminates the spatial restriction when the movable pulley moves, ensures that the movable pulley moves smoothly during the application of load, avoids load fluctuations caused by jamming, and ensures stable load transmission.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lifting load testing device, characterized in that, include: Support component (1), load amplification component (2), counterweight loading end (3), and force measuring component (4); The load amplification component (2) is disposed on the support component (1). The two ends of the load amplification component (2) are respectively connected to the counterweight loading end (3) and the upper connection end (41) of the force measuring component (4). The lower connection end (42) of the force measuring component (4) is connected to the force application part of the test piece. A counterweight is loaded at the counterweight loading end (3), and the load amplification component (2) amplifies the counterweight and then applies it to the force application part of the test piece through the force measuring component (4) to carry out the lift load test.

2. The lift load testing device according to claim 1, characterized in that, The counterweight loading end (3) is a water bag or a water tank.

3. The lift load testing device according to claim 2, characterized in that, The counterweight loading end (3) can continuously inject or release water, thereby changing the load weight of the counterweight loading end (3).

4. The lift load testing device according to claim 2, characterized in that, The counterweight loading end (3) includes water supply and drainage pipes.

5. The lift load testing device according to claim 1, characterized in that, The load amplification assembly (2) includes a traction cable (21) and a pulley block (22).

6. The lift load testing device according to claim 5, characterized in that, The pulley system (22) is a pulley system set according to a 1:4 force-saving ratio.

7. The lift load testing device according to claim 6, characterized in that, The pulley block (22) includes a first fixed pulley (221), a sub-pulley block (222), and a second fixed pulley (223); The traction cable (21) includes a first sub-segment (211) and a second sub-segment (212); one end of the first sub-segment (211) is connected to the counterweight loading end (3) after changing direction through the first fixed pulley (221), and the other end of the first sub-segment (211) is fixed on the support assembly (1) after being wound around the sub-pulley group (222); one end of the second sub-segment (212) is connected to the movable pulley (2222) of the sub-pulley group (222), and the other end of the second sub-segment (212) is connected to the force measuring assembly (4) after changing direction through the second fixed pulley (223).

8. The lift load testing device according to claim 7, characterized in that, The sub-pulley assembly (222) also includes a third fixed pulley (2221).

9. The lift load testing device according to claim 7, characterized in that, The pulley block (22) is mounted on the crossbeam (11) of the support assembly (1).

10. The lift load testing device according to claim 9, characterized in that, The crossbeam (11) is provided with a sliding groove (111), and the movable pulley of the sub-pulley block (222) reciprocates in the sliding groove (111) under the traction of the counterweight loading end (3).

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