Unmanned aerial vehicle engine test bed

Abstract

The utility model discloses an unmanned aerial vehicle engine test bed, which comprises a power test bed frame, steel channel beams are arranged at the front and the back of the lower end of the power test bed frame, trundles are arranged on two sides of the lower end of each steel channel beam, and lifting mechanisms are arranged at two ends of each steel channel beam. Compared with the prior art, the test bed has the advantages that the test bed is high in bearing capacity and adaptive capacity, meets test requirements of unmanned aerial vehicle engines with blades within 100 inches, provides comprehensive and accurate data support for research, development and production, is convenient to move and fix, improves use flexibility and convenience of the test bed, reduces site arrangement cost, is stable in structure and supporting system, and is suitable for popularization and application. Testing safety and stability are guaranteed, testing errors and hidden dangers are reduced, accurate data are provided for most unmanned aerial vehicle engine testing, performance optimization is facilitated, the engine installation process is simplified, testing efficiency is improved, the bottom space is flexible, various requirements are met, and applicability is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane technical field, concretely points to a kind of unmanned plane engine test bed. BACKGROUND

[0002] In the research and development and production process of unmanned plane engine, it is a crucial link to carry out comprehensive and accurate performance test to large engine. However, the existing test bed exposes a series of significant problems when coping with the test demand of large unmanned plane engine.

[0003] On the one hand, the volume and carrying capacity of many test beds cannot meet the specification requirements of large engine due to the limitations of design. This leads to insufficient space during installation and testing, and the engine cannot be provided with stable support, thereby affecting the accuracy and safety of testing.

[0004] On the other hand, the existing test bed also has defects in terms of mobility and fixation. Either it lacks effective moving devices, making the process of deploying the test bed to different test locations extremely cumbersome, or it is not stable enough in the fixation mode to resist the strong vibration and impact force generated during engine operation, thereby causing deviation and instability of test data.

[0005] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the overall background of the application, and should not be regarded as acknowledging or implying in any form that this information constitutes prior art known to those skilled in the art. SUMMARY

[0006] The technical problem to be solved by the utility model is to overcome the above-mentioned defects and provide an unmanned plane engine test bed.

[0007] To solve the above-mentioned technical problems, the utility model provides the technical scheme as follows: an unmanned plane engine test bed, comprising:

[0008] A power test bench is provided with a channel steel beam at the lower end of the front and rear;

[0009] A castor is provided on both sides of the lower end of the channel steel beam;

[0010] A lifting mechanism is provided at both ends of the channel steel beam;

[0011] An engine fixing seat is provided at the upper end of the power test bench;

[0012] A sliding mechanism is provided between the power test bench and the engine fixing seat;

[0013] A tension mechanism is provided at the front end of the upper side of the power test bench.

[0014] As improvement, the lifting mechanism comprises:

[0015] A round nut is inserted on both sides of the upper end of the channel steel beam;

[0016] A lifting screw is threadedly connected in the middle of the round nut;

[0017] A hand wheel is arranged on the upper end of the lifting screw;

[0018] A supporting leg is arranged in the middle of the lower end of the lifting screw.

[0019] As improvement, the sliding mechanism comprises:

[0020] A base is arranged on the upper end of the power test bench;

[0021] Sliding rails are arranged on both sides of the upper end of the base;

[0022] Sliding blocks are slidably connected to the upper end of the sliding rails, and the upper end of the sliding blocks is fixedly connected to the lower end of the engine fixing seat;

[0023] Baffles are fixedly connected to the upper end of the base;

[0024] As improvement, the upper end of the engine fixing seat is provided with a triangular supporting frame.

[0025] As improvement, the tension mechanism comprises:

[0026] A bottom plate is fixedly connected to the upper end of the power test bench, and the bottom plate is located on the front side of the base;

[0027] A fixing frame is arranged on the upper end of the bottom plate;

[0028] A tension meter fixing piece is arranged on the front side of the upper end of the fixing frame;

[0029] A tension meter connecting rod is arranged on the upper end of the rear side of the tension meter fixing piece;

[0030] A tension meter is arranged on the tension meter connecting rod;

[0031] A triangular beam is arranged on the upper end of the fixing frame, and the front side of the triangular beam is fixedly connected to the rear side of the tension meter fixing piece.

[0032] Compared with the prior art, the utility model has the advantages of strong bearing and adaptive capacity, meeting the unmanned aerial vehicle engine test demand of the paddle within 100 inches, and providing comprehensive and accurate data support for research and development and production.

[0033] 2. Mobile and fixed convenience, improve the flexibility and convenience of the test bed, reduce the cost of site layout.

[0034] 3. Stable structure and support system, ensure safe and stable testing, reduce testing errors and hidden dangers.

[0035] 4. Provide accurate data for most unmanned aerial vehicle engine testing, which is beneficial to optimize performance.

[0036] 5. Simplify the engine installation process and improve testing efficiency.

[0037] 6. Flexible bottom space to meet various needs and enhance applicability.

[0038] These innovative designs significantly improve the overall performance and practical value of the test bed, providing strong support for the research and testing of unmanned aerial vehicle engines. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a structure diagram of the utility model of a kind of unmanned aerial vehicle engine test bed Figure 1 .

[0040] Figure 2 is a structure diagram of the utility model of a kind of unmanned aerial vehicle engine test bed Figure 2 .

[0041] Figure 3 is a structure diagram of the utility model of a kind of unmanned aerial vehicle engine test bed sliding mechanism.

[0042] Figure 4 is a structure diagram of the utility model of a kind of unmanned aerial vehicle engine test bed tension mechanism.

[0043] Figure 5 is a structure diagram of the utility model of a kind of unmanned aerial vehicle engine test bed lifting mechanism.

[0044] As shown in the figure: 1, power test bench; 2, channel steel beam; 3, castor; 4, lifting mechanism; 41, round nut; 42, lifting screw; 43, hand wheel; 44, foot; 5, engine fixing seat; 6, sliding mechanism; 61, base; 62, slide rail; 63, sliding block; 64, baffle; 7, tension mechanism; 71, bottom plate; 72, fixed frame; 73, tension meter fixing piece; 74, tension meter connecting rod; 75, tension meter; 76, triangular beam; 8, triangular support frame. DETAILED DESCRIPTION

[0045] The utility model will be further described in detail below in combination with the drawings.

[0046] A kind of unmanned aerial vehicle engine test bed, such as Figure 1As shown, including power test bench 1, power test bench 1 lower end front and rear are provided with channel steel beam 2, constitute the engine test bench main structure, test bench main body adopts high strength thickening steel structure frame, through precise welding and reinforcement treatment, not only can withstand the huge force and high frequency vibration generated by large engine during long time operation, but also can ensure the integrity and stability of the structure under extreme working conditions. Its internal space is spacious, the layout is reasonable, which provides sufficient and comfortable space for the installation of large engine, the connection of various test equipment and the operation of operators, strong bearing and adaptive capacity, meets the unmanned aerial vehicle engine test demand of 100 inches or less propeller, and provides comprehensive and accurate data support for research and development.

[0047] The lower end of the channel steel beam 2 is provided with casters 3 on both sides, and the casters 3 are high-performance heavy casters. These casters adopt wear-resistant and pressure-resistant special rubber material wheel surface, combined with high-quality alloy steel hub and precise ball bearing, which can realize easy and smooth movement while bearing the heavy weight of the test bench, and has good damping effect, reducing the bumping and impact during movement.

[0048] As shown in Figure 1 or Figure 5 The channel steel beam 2 is provided with lifting mechanism 4 at both ends, and the lifting mechanism 4 includes round nut 41, lifting screw 42, hand crank 43 and supporting leg 44. The round nut 41 is inserted into the both sides of the upper end of the channel steel beam 2, the lifting screw 42 is threadedly connected to the middle of the round nut 41, the hand crank 43 is arranged on the upper end of the lifting screw 42, and the supporting leg 44 is arranged on the middle of the lower end of the lifting screw 42. Rotating the hand crank 43 can drive the lifting screw 42 to rotate up and down in the middle of the round nut 41, thereby driving the supporting leg 44 to rise and fall. The hand crank lifting mode is based on the mature thread transmission principle, and the structure design is simple. The complex gear structure is removed, the number of parts is reduced, the manufacturing process complexity is reduced, the fault risk caused by too many parts is reduced, and the maintenance convenience is improved. In terms of application scenarios, the lifting screw 42 and the supporting leg 44 have strong adaptability. In the environment lacking of hydraulic power source or unstable power supply, without relying on external complex power equipment, manual driving can work normally, ensuring that the test bench can smoothly carry out test task in special environment.

[0049] From the perspective of stability, the four lifting screws 42 and the supporting feet 44 are evenly distributed at the bottom of the test bed, which can efficiently disperse the weight of the test bed and the engine. In the face of the vibration and impact generated by the operation of the engine, it can also provide stable support for the test bed, reduce shaking and displacement, and ensure the accuracy and reliability of the test data. In terms of operation, shaking the hand wheel 43 can realize the lifting of the supporting column, and the process is simple and direct, so that beginners can quickly get started and improve the installation and debugging efficiency of the test bed. In view of the problem of laboriousness of the traditional hand-operated lifting screw 42, the lifting screw 42 is optimized in terms of thread design. Scientific pitch is adopted to reduce the force required for rotation while ensuring lifting accuracy. According to actual test, even if the test bed itself is loaded with four or five hundred kilograms of weight, the operator can still rotate the hand wheel 43 relatively easily, realize the stable lifting of the lifting screw 42, effectively solve the problem of laboriousness of hand operation, and improve the user experience.

[0050] The power test bench 1 is provided with an engine fixing seat 5 at the upper end, and the engine fixing seat 5 is provided with a triangular support frame 8 at the upper end of both sides. The engine fixing seat is designed ingeniously and has strong universality. The electric motor can be directly installed, and the oil motor can be stably worked after adding a shock pad. The bottom of the test bed is reserved with sufficient space, and the user can flexibly install various equipment according to the actual test needs, which greatly expands the function and application range.

[0051] As shown in Figure 3 , a sliding mechanism 6 is arranged between the power test bench 1 and the engine fixing seat 5, and the sliding mechanism 6 includes a base 61, a sliding rail 62, a sliding block 63, and a baffle 64. The base 61 is arranged at the upper end of the power test bench 1, the sliding rail 62 is arranged at the upper end of both sides of the base 61, the sliding block 63 is slidably connected to the upper end of the sliding rail 62, the upper end of the sliding block 63 is fixedly connected to the lower end of the engine fixing seat 5, and the baffle 64 is fixedly connected to the upper end of the base 61. During testing, the engine fixing seat 5 can slide linearly on the sliding rail 62 through the sliding block 63. This device can significantly reduce friction, thereby effectively reducing the error caused by friction, so that the engine performance data obtained by testing is more accurate.

[0052] As shown in Figure 4 , a tension mechanism 7 is arranged at the front end of the upper side of the power test bench 1, and the tension mechanism 7 includes a bottom plate 71, a fixing frame 72, a tension gauge fixing piece 73, a tension gauge connecting rod 74, a tension gauge 75, and a triangular beam 76. The bottom plate 71 is fixedly connected to the upper end of the power test bench 1 and is located at the front side of the base 61. The fixing frame 72 is arranged at the upper end of the bottom plate 71. The tension gauge fixing piece 73 is arranged at the front side of the upper end of the fixing frame 72. The tension gauge connecting rod 74 is arranged at the upper end of the rear side of the tension gauge fixing piece 73. The tension gauge 75 is arranged on the tension gauge connecting rod 74. The triangular beam 76 is arranged at the upper end of the fixing frame 72, and the front side of the triangular beam 76 is fixedly connected to the rear side of the tension gauge fixing piece 73.

[0053] The utility model discloses in the specific implementation, like Figures 1-5 As shown, when preparing to test the large unmanned aerial vehicle engine, first check the state of the test bench's casters 3 and hand wheels 43 and lifting screws 42, and ensure their normal operation.

[0054] After reaching the designated location, the operator manually rotates the rotating handle at the front end of each hand wheel 43. Rotating the hand wheel 43 can drive the lifting screw 42 to rotate and descend in the middle of the round nut 41, thereby driving the supporting leg 44 to descend and contact the ground. Continue to rotate the handle, and the lifting screw 42 continues to extend, lifting the entire test bench until the casters 3 are completely off the ground at a certain height. Through observation of the level meter and other indicating devices, the levelness and stability of the test bench are ensured.

[0055] Next, the large unmanned aerial vehicle engine is carefully lifted and installed on the test bench, and various test equipment and pipelines such as sensors, data lines, and oil supply pipelines are connected in the specified connection mode and order. After confirming that all connections are correct and the equipment is in normal state, performance testing can begin.

[0056] When the test task in one test site is completed and it is necessary to change to a new site, first check the ground conditions of the new site to ensure that it can bear the weight and pressure of the test bench. Then, the operator reversely rotates the rotating handle of the hand wheel 43, raising the lifting screw 42 until the casters 3 re-contact the ground and bear the weight of the test bench.

[0057] After confirming that the casters 3 are completely loaded and the lifting screw 42 and the supporting leg 44 are completely retracted, the test bench can be carefully pushed to move to a new test location. During the movement, it is also necessary to pay attention to keeping stable, avoiding sudden stops, rapid turns, and violent jolts.

[0058] After reaching the new test location, the hand wheel 43 is rotated to lower the supporting leg 44 to stably support the test bench according to the above steps, and the test bench is fixed and subsequent testing work is carried out.

[0059] The electrical components appearing in this document are all connected to the main controller and 220V mains electricity, and the main controller can be a computer or other conventional known device that can be controlled. The specific embodiments of the present disclosure omit detailed descriptions of known functions and known components. To ensure the compatibility of the equipment, the operation means used are consistent with the parameters of the market appliances.

[0060] The above has described the utility model and its implementation mode, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A test stand for a drone engine, characterized in that, The utility model relates to a power experiment bench, which comprises a power experiment bench (1), a channel steel beam (2) arranged at the lower end of the power experiment bench (1), casters (3) arranged at the lower end of the channel steel beam (2), a lifting mechanism (4) arranged at the two ends of the channel steel beam (2), an engine fixing seat (5) arranged at the upper end of the power experiment bench (1), a sliding mechanism (6) arranged between the power experiment bench (1) and the engine fixing seat (5), and a tension mechanism (7) arranged at the front upper side of the power experiment bench (1). The lifting mechanism (4) comprises a round nut (41) inserted into the upper end of the channel steel beam (2), a lifting screw rod (42) threadedly connected to the middle of the round nut (41), a hand wheel (43) arranged at the upper end of the lifting screw rod (42), and a supporting leg (44) arranged at the middle of the lower end of the lifting screw rod (42). The sliding mechanism (6) comprises a base (61) arranged at the upper end of the power experiment bench (1), slide rails (62) arranged at the upper end of the base (61), a sliding block (63) slidingly connected to the upper end of the slide rails (62), the sliding block (63) being fixedly connected to the lower end of the engine fixing seat (5), and a baffle (64) fixedly connected to the upper end of the base (61). The engine fixing seat (5) is provided with a triangular support frame (8) at the upper end of the engine fixing seat (5). The tension mechanism (7) comprises a bottom plate (71) fixedly connected to the upper end of the power experiment bench (1), the bottom plate (71) being located at the front side of the base (61), a fixing frame (72) arranged at the upper end of the bottom plate (71), a tension gauge fixing member (73) arranged at the upper end of the front side of the fixing frame (72), a tension gauge connecting rod (74) arranged at the upper end of the rear side of the tension gauge fixing member (73), a tension gauge (75) arranged on the tension gauge connecting rod (74), and a triangular beam (76) arranged at the upper end of the fixing frame (72), the triangular beam (76) being fixedly connected to the rear side of the tension gauge fixing member (73). ​ ​ 2. The unmanned aerial vehicle engine test stand of claim 1, wherein: ​ ​ ​ ​ ​ 3. The unmanned aerial vehicle engine test stand of claim 1, wherein: ​ ​ ​ ​ ​ 4. The unmanned aerial vehicle engine test stand of claim 1, wherein: ​ 5. The unmanned aerial vehicle engine test stand of claim 3, wherein: ​ ​ ​ ​ ​ ​ ​

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