A helicopter electric winch performance test platform

Abstract

The utility model relates to electric winch performance test technical field, and disclose a kind of helicopter electric winch performance test platform, it include: test table, the sliding slot is opened in the test table, two groups of symmetrically arranged sliding blocks are slidably connected in the sliding slot, the fixture for extruding and fixing electric winch is fixedly connected on the sliding block, two groups of sliding blocks are connected with moving part, and the moving part is used to drive two groups of sliding blocks synchronous relative movement.The utility model is provided with fixture and moving part on test table, two groups of sliding blocks and the fixture fixedly connected with it are moved by the action of moving part, and electric winch is fixed by the relative movement of two groups of fixtures, so that it is stably located on test table, to avoid the situation of shaking in the experimental process, to further solve the problem that electric winch in the prior art is influenced by shaking to affect its experimental results.

Description

Technical Field

[0001] This utility model relates to the field of electric winch performance testing technology, specifically a helicopter electric winch performance testing platform. Background Technology

[0002] The DC brushless motor for helicopter electric winches is the power source for helicopter winches. It is mainly used to provide power to the winch drum, enabling the winch to rotate in both directions with high precision and hover, and ensuring the high-precision positioning of the winch cable.

[0003] Currently, before an electric winch can be put into use, it needs to be tested. By monitoring various experimental data, it can be determined whether the electric winch can be put into normal use. During the test, the electric winch needs to be placed on an experimental platform. However, the existing experimental platform cannot fix the electric winch. During the test, the vibration of the electric winch will cause it to sway on the experimental platform, which will affect the test results.

[0004] To this end, we propose a performance testing platform for helicopter electric winches. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A performance testing platform for a helicopter electric winch includes a test bench with a sliding groove. Two sets of symmetrically arranged sliding blocks are slidably connected in the sliding groove. Clamps for squeezing and fixing the electric winch are fixedly connected to the sliding blocks. Moving parts are connected to the two sets of sliding blocks, and the moving parts are used to drive the two sets of sliding blocks to move synchronously relative to each other.

[0007] As a further embodiment of this utility model: the moving part includes a connecting shaft rotatably connected to the test bench, a limiting component is provided between the connecting shaft and the test bench, and a first threaded rod and a second threaded rod are fixedly connected to both ends of the connecting shaft, the first threaded rod and the second threaded rod are respectively threadedly connected to two sets of sliding blocks, the thread directions of the first threaded rod and the second threaded rod are opposite, and a driving source is connected to the end of the first threaded rod.

[0008] As a further embodiment of this utility model: the driving source includes a rotating shaft fixedly connected to the first threaded rod, the rotating shaft is rotatably connected to the test bench, and a throttle handle is fixedly connected to the end of the rotating shaft.

[0009] As a further improvement of this utility model: a rotating sleeve is fitted on the outer side of the throttle, and a limiting block is fixedly connected to the end of the throttle.

[0010] As a further embodiment of this utility model: the clamp includes a fixed plate fixedly connected to the sliding block, a sliding column slidably connected to the fixed plate, a sliding plate fixedly connected to the end of the sliding column, and a first spring fixedly connected between the sliding plate and the fixed plate.

[0011] As a further embodiment of this utility model: the limiting member includes a rotating block fixedly connected to the connecting shaft and a second spring installed inside the test bench. The end of the second spring is fixedly connected to a movable column slidably connected to the test bench. The end of the movable column is rotatably connected to a ball. The rotating block is provided with a groove adapted to the ball. Multiple sets of grooves are provided and arranged closely in a circle.

[0012] As a further improvement of this utility model, a buffer support leg is provided at the bottom corner of the test bench, which facilitates the buffering of the electric winch in the laboratory and improves the stability of the test bench.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention features a clamp and a moving component on a test bench. The moving component moves two sets of sliding blocks and the clamp fixedly connected to them. The relative movement of the two sets of clamps fixes the electric winch, ensuring it is stably positioned on the test bench. This prevents shaking during the experiment and solves the problem in the prior art where shaking of the electric winch affects the experimental results. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic cross-sectional view of the present invention. Figure 3 This is a schematic diagram of the moving part structure of this utility model; Figure 4 This is a schematic diagram of the fixture structure of this utility model; Figure 5 This is a schematic diagram of the limiting component structure of this utility model.

[0015] In the diagram: 1. Test bench; 2. Sliding groove; 3. Sliding block; 4. Fixture; 5. Moving part; 6. Connecting shaft; 7. Limiting part; 8. First threaded rod; 9. Second threaded rod; 10. Drive source; 11. Rotating shaft; 12. Turning handle; 13. Rotating sleeve; 14. Limiting block; 15. Fixing plate; 16. Sliding column; 17. Sliding plate; 18. First spring; 19. Rotating block; 20. Second spring; 21. Moving column; 22. Ball bearing; 23. Roller groove; 24. Buffer support leg. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0019] Example 1: Please see Figure 1 - Figure 5 This is the first embodiment of the present utility model. This utility model provides a technical solution: a performance test platform for a helicopter electric winch, including a test bench 1. A sliding groove 2 is provided on the test bench 1. Two sets of symmetrically arranged sliding blocks 3 are slidably connected in the sliding groove 2. A clamp 4 for squeezing and fixing the electric winch is fixedly connected to the sliding blocks 3. A moving part 5 is connected to the two sets of sliding blocks 3. The moving part 5 is used to drive the two sets of sliding blocks 3 to move synchronously relative to each other.

[0020] In the embodiments of this utility model, please refer to Figure 2 and Figure 3 The movable part 5 in the figure includes a connecting shaft 6 that is rotatably connected to the test bench 1. A limiting part 7 is provided between the connecting shaft 6 and the test bench 1. A first threaded rod 8 and a second threaded rod 9 are fixedly connected to both ends of the connecting shaft 6. The first threaded rod 8 and the second threaded rod 9 are threadedly connected to two sets of sliding blocks 3 respectively. The thread directions of the first threaded rod 8 and the second threaded rod 9 are opposite, and a drive source 10 is connected to the end of the first threaded rod 8.

[0021] In the embodiments of this utility model, please refer to Figure 2 and Figure 3 The drive source 10 shown in the figure includes a rotating shaft 11 fixedly connected to the first threaded rod 8. The rotating shaft 11 is rotatably connected to the test bench 1, and a throttle 12 is fixedly connected to the end of the rotating shaft 11.

[0022] In the embodiments of this utility model, please refer to Figure 2 and Figure 3 The outer side of the throttle 12 in the figure is fitted with a rotating sleeve 13, and the end of the throttle 12 is fixedly connected to a limit block 14.

[0023] In the embodiments of this utility model, please refer to Figure 2 and Figure 4 The clamp 4 shown in the figure includes a fixed plate 15 fixedly connected to the sliding block 3, a sliding column 16 slidably connected to the fixed plate 15, a sliding plate 17 fixedly connected to the end of the sliding column 16, and a first spring 18 fixedly connected between the sliding plate 17 and the fixed plate 15.

[0024] Example 2: Please see Figure 1 - Figure 5 This is the second embodiment of the present invention. In the embodiments of this utility model, please refer to Figure 2 and Figure 5 The limiting component 7 shown in the figure includes a rotating block 19 fixedly connected to the connecting shaft 6 and a second spring 20 installed inside the test bench 1. The end of the second spring 20 is fixedly connected to a moving column 21 that is slidably connected to the test bench 1. The end of the moving column 21 is rotatably connected to a ball 22. The rotating block 19 is provided with a groove 23 that is adapted to the ball 22. There are multiple sets of grooves 23 arranged in a circumferentially close arrangement.

[0025] In the embodiments of this utility model, please refer to Figure 1 and Figure 2 The test bench 1 shown in the figure is equipped with a buffer support leg 24 at the bottom corner, which facilitates the buffering of the electric winch in the laboratory and improves the stability of the test bench 1.

[0026] Working principle: When experimenting with the electric winch, the electric winch is first moved onto the test bench 1. Then, the throttle 12 is turned, which causes the first threaded rod 8 to rotate. Then, the connecting shaft 6 causes the second threaded rod 9 to rotate. In this design, the threads of the first threaded rod 8 and the second threaded rod 9 are opposite. When the first threaded rod 8 and the second threaded rod 9 rotate, the two sets of sliding blocks 3 will move simultaneously and move closer to each other. The movement of the two sets of sliding blocks 3 will drive the fixed plate 15, which is fixedly connected to them, to move. The movement of the fixed plate 15 will cause the sliding column 16 and the sliding plate 17 to move. The sliding plate 17 will then press and fix the electric winch. During this process, the first spring 18 will be compressed, giving the fixed block a reaction force. This will result in a certain fastening force between the two sets of sliding blocks 3 and the first threaded rod 8 and the second threaded rod 9, making the first threaded rod 8 and the second threaded rod 9 more stable and preventing the clamp 4 from loosening. Furthermore, when the connecting shaft 6 rotates, the rotating block 19 will rotate. The rotating block 19 will then experience friction due to the action of the ball 22, the groove 23, and the second spring 20. This facilitates the limiting of the rotating block 19 and the connecting shaft 6, making the first threaded rod 8 and the second threaded rod 9 more stable. This also prevents the clamping from loosening due to vibration during the electric winch experiment.

[0027] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0028] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0029] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring extensive experimentation. It should be noted that the above embodiments are merely illustrative of the technical solutions of this utility model and not intended to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A performance testing platform for a helicopter electric winch, characterized in that: include: The test bench (1), sliding groove (2), and sliding blocks (3) are provided; the sliding groove (2) is provided on the test bench (1), and two sets of symmetrically arranged sliding blocks (3) are slidably connected in the sliding groove (2). The test bench also includes: The fixture (4), the moving parts (5), the limiting parts (7) and the driving source (10) are fixedly connected to the sliding block (3), the two sets of moving parts (5) are connected to the sliding block (3), the limiting parts (7) are located between the connecting shaft (6) and the test bench (1), and the driving source (10) is connected to the end of the first threaded rod (8).

2. The performance testing platform for a helicopter electric winch according to claim 1, characterized in that: The moving part (5) includes: a connecting shaft (6), a first threaded rod (8), and a second threaded rod (9); the connecting shaft (6) is rotatably connected to the test bench (1), and the first threaded rod (8) and the second threaded rod (9) are respectively fixedly connected to the two ends of the connecting shaft (6).

3. The performance testing platform for a helicopter electric winch according to claim 2, characterized in that: The drive source (10) includes a rotating shaft (11) and a throttle (12); the rotating shaft (11) is fixedly connected to the first threaded rod (8), the rotating shaft (11) is rotatably connected to the test bench (1), and the throttle (12) is fixedly connected to the end of the rotating shaft (11).

4. The performance testing platform for a helicopter electric winch according to claim 3, characterized in that: The outer side of the throttle (12) is fitted with a rotating sleeve (13), and the end of the throttle (12) is fixedly connected to a limiting block (14).

5. The performance testing platform for a helicopter electric winch according to claim 4, characterized in that: The clamp (4) includes: a fixed plate (15), a sliding column (16), a sliding plate (17), and a first spring (18); the fixed plate (15) is fixedly connected to the sliding block (3), the sliding column (16) is slidably connected to the fixed plate (15), the sliding plate (17) is fixedly connected to the end of the sliding column (16), and the first spring (18) is fixedly connected between the sliding plate (17) and the fixed plate (15).

6. The performance testing platform for a helicopter electric winch according to claim 5, characterized in that: The limiting component (7) includes: a rotating block (19), a second spring (20), a moving column (21), a ball (22), and a groove (23); the rotating block (19) is fixedly connected to the connecting shaft (6), the second spring (20) is installed inside the test bench (1), the end of the second spring (20) is fixedly connected to the moving column (21) which is slidably connected to the test bench (1), the ball (22) is rotatably connected to the end of the moving column (21), and the groove (23) is opened on the rotating block (19) and is adapted to the ball (22). The groove (23) is provided in multiple sets and is arranged in a circumferentially close arrangement.

7. The performance testing platform for a helicopter electric winch according to claim 6, characterized in that: The test bench (1) is provided with a buffer support leg (24) at the bottom corner.

8. The performance testing platform for a helicopter electric winch according to claim 2, characterized in that: The first threaded rod (8) and the second threaded rod (9) are respectively threadedly connected to the two sets of sliding blocks (3), and the thread directions of the first threaded rod (8) and the second threaded rod (9) are opposite.

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