Engine thrust table thrust force measuring device and engine thrust force measuring equipment

Abstract

The utility model discloses an engine thrust table thrust force measuring device and engine thrust force measuring equipment, the engine thrust table thrust force measuring device comprises a first mounting plate, a second mounting plate and a plurality of groups of force measuring parts, each group of force measuring parts comprises a force measuring assembly and a calibration assembly, and the force measuring assembly and the calibration assembly are arranged between the first mounting plate and the second mounting plate. And the force measuring assembly and the calibration assembly are detachably connected with the first mounting plate and the second mounting plate respectively. On the basis, the acting force of the first mounting plate and the acting force of the second mounting plate are calibrated through the calibration assembly when the engine does not generate thrust. When the engine is started, thrust generated by the engine acts on the second mounting plate, the first mounting plate is fixed, and the thrust generated by the engine can be detected by the force measuring assembly according to displacement between the first mounting plate and the second mounting plate; and different force measuring parts are replaced to be connected with the first mounting plate and the second mounting plate, so that the applicability of the thrust force measuring device for the thrust table of the engine to thrust detection of different types of engines is improved.

Description

Technical Field

[0001] This application belongs to the field of engine testing, and in particular relates to an engine thrust platform thrust measuring device and an engine thrust measuring equipment. Background Technology

[0002] When testing the thrust of an engine, various thrust testers of different sizes are needed to mount the engine for thrust testing. However, there are many engine models, and the length and width of different models vary greatly. Therefore, a thrust tester suitable for each engine model needs to be designed for thrust testing. This means that different thrust testers need to be used when testing different engines, which undoubtedly wastes a lot of time and money and brings great inconvenience to engine thrust testing.

[0003] Currently, the applicability of thrust benches for engine testing can be improved by setting the interface between the thrust bench and the engine to a universal interface. Patent CN115436065B discloses a multi-functional test bench for aero-engines, comprising: a frame structure including a fixed frame, a moving frame, an upper mounting frame, and a supporting pre-assembly base connected sequentially from top to bottom; the fixed frame is mounted on the test bench; the engine under test is installed within the supporting pre-assembly base; an exhaust diffuser mount is provided on the fixed frame, and an exhaust diffuser is detachably mounted on the exhaust diffuser mount; a flow pipe mount is fixed on the upper mounting frame, and a flow pipe is installed on the flow pipe mount; the supporting pre-assembly base has a main support point and an auxiliary support point, which are used to mount and fix the engine under test.

[0004] The aforementioned patent describes a pre-installed support frame with a universal interface that is pre-connected to the engine before being hoisted onto the engine platform for thrust testing. This method effectively improves the efficiency of engine installation. However, the device is complex, and to improve efficiency, multiple pre-installed support frames are needed to pre-connect them to the engine as many times as possible. This still results in a significant waste of time and money, and causes considerable inconvenience for engine thrust testing. Utility Model Content

[0005] This application provides an engine thrust test bench and an engine thrust measurement device, which improves the applicability of engine thrust detection.

[0006] According to a first aspect of this application, a thrust measuring device for an engine thrust platform is provided: the thrust measuring device for an engine thrust platform includes:

[0007] First mounting plate;

[0008] Second mounting plate;

[0009] Multiple sets of force measuring components, each set of force measuring components includes a force measuring component and a calibration component, the force measuring component and the calibration component are disposed between the first mounting plate and the second mounting plate, and the force measuring component and the calibration component are detachably connected to the first mounting plate and the second mounting plate respectively.

[0010] Optionally, the force measuring component includes:

[0011] The first mounting base is detachably connected to the first mounting plate;

[0012] The second mounting base is detachably connected to the second mounting plate.

[0013] A force sensor, with its two ends connected to a first mounting base and a second mounting base, respectively.

[0014] Optionally, the force measuring component also includes:

[0015] The first flexible transmission component has its two ends connected to the first mounting base and the force sensor, respectively.

[0016] Optionally, the calibration components include:

[0017] The third mounting base is detachably connected to the first mounting plate;

[0018] The fourth mounting base is detachably connected to the second mounting plate;

[0019] The sensor is calibrated, with its two ends connected to the first and second mounting bases, respectively.

[0020] A hydraulic cylinder is connected to the end of the third mounting base furthest from the calibration sensor.

[0021] Optionally, the calibration components also include:

[0022] The second flexible transmission component has its two ends connected to the third mounting base and the calibration sensor, respectively.

[0023] Optionally, the thrust measuring device of the engine thrust platform also includes:

[0024] A spring sheet is located on one side of the first mounting plate and the second mounting plate along the thrust direction, and the two ends of the spring sheet are respectively connected to the first mounting plate and the second mounting plate.

[0025] Optionally, the force measuring component includes a first force measuring component, which includes a force measuring assembly and a calibration assembly. The force measuring assembly and the calibration assembly are in the same vertical plane as the engine axis, and the axial direction of the force measuring assembly and the axial direction of the calibration assembly are both parallel to the axial direction of the engine. The force measuring assembly and the calibration assembly are on the same horizontal plane, and the horizontal plane is parallel to the engine axis.

[0026] Optionally, the force measuring component includes a second force measuring component, which includes two force measuring assemblies and a calibration assembly. The calibration assembly is in the same vertical plane as the engine axis. The two force measuring assemblies are respectively arranged on both sides of the calibration assembly, and the two force measuring assemblies and the calibration assembly are located on the same horizontal plane, which is parallel to the engine axis. The distance between each force measuring assembly and the calibration assembly is equal, and the axial direction of the force measuring assembly and the axial direction of the calibration assembly are both parallel to the axial direction of the engine.

[0027] Optionally, the force measuring component includes a third force measuring component, which includes two force measuring assemblies and two calibration assemblies. One force measuring assembly and one calibration assembly are coaxially connected to form a force measuring group. The axial direction of the force measuring group is parallel to the axial direction of the engine. The two force measuring groups are respectively set on both sides of the vertical plane of the engine axis. Each force measuring group is equidistant from the vertical plane. Both force measuring groups are located on the same horizontal plane, and this horizontal plane is parallel to the engine axis.

[0028] According to a second aspect of this application, an embodiment of this application provides an engine thrust measuring device, which includes an engine thrust platform thrust measuring device as described in any of the first aspects.

[0029] The technical solutions provided by the embodiments of this application bring at least the following beneficial effects:

[0030] This application provides an engine thrust platform thrust measuring device and an engine thrust measuring equipment. By locking a first mounting plate and an engine thrust platform locking device, and connecting a second mounting plate to an engine bracket to fix and support the engine, the engine and the second mounting plate can be in a relatively fixed state. A calibration component is used to calibrate the forces acting on the first and second mounting plates when the engine is not generating thrust. When the engine starts, it generates thrust acting on the second mounting plate. Since the first mounting plate is fixed, a displacement occurs between the first and second mounting plates. A force measuring component is positioned between the first and second mounting plates, allowing the force measuring component to detect the thrust generated by the engine based on this displacement. For different types and sizes of engines, the original force measuring component can be removed from between the first and second mounting plates to replace it with a different force measuring component, thereby improving the applicability of the engine thrust platform thrust measuring device for engine thrust detection.

[0031] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0032] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application, and do not constitute an undue limitation of this application.

[0033] Figure 1 This is a schematic diagram of the structure of a thrust measuring device for an engine thrust platform, according to an exemplary embodiment.

[0034] Figure 2 This is a schematic diagram of a force measuring component in an engine thrust platform thrust measuring device according to an exemplary embodiment;

[0035] Figure 3 This is a schematic diagram of a calibration component in an engine thrust measuring device according to an exemplary embodiment.

[0036] Figure 4 This is a schematic diagram of the force measuring group in the thrust measuring device of an engine thrust platform according to an exemplary embodiment;

[0037] Figure 5 This is yet another structural schematic diagram of an engine thrust platform thrust measuring device according to an exemplary embodiment;

[0038] Figure 6 This is a schematic diagram illustrating the connection of a thrust measuring device on an engine thrust platform according to an exemplary embodiment.

[0039] Legend:

[0040] Detailed Implementation

[0041] In the description of this application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not 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 application. 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] In this application, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact with the first and second features through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application.

[0044] In this specification, the illustrative expressions of the terms used above do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Numerous specific details are set forth in the following description to provide a thorough understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in this specification are only a part of the embodiments of this disclosure, and not all of them.

[0045] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0046] Based on this, this application provides an engine thrust platform thrust measuring device and an engine thrust measuring equipment. The engine thrust platform thrust measuring device provided in the embodiments of this application will be described below first.

[0047] like Figure 1-6 As shown;

[0048] Example 1;

[0049] like Figure 1-3 As shown, the thrust measuring device 1 of the engine thrust platform includes:

[0050] First mounting plate 11;

[0051] Second mounting plate 12;

[0052] Multiple sets of force measuring components 13, each set of force measuring components 13 includes a force measuring component 131 and a calibration component 132, the force measuring component 131 and the calibration component 132 are disposed between the first mounting plate 11 and the second mounting plate 12, and the force measuring component 131 and the calibration component 132 are detachably connected to the first mounting plate 11 and the second mounting plate 12 respectively.

[0053] Based on this, by locking and fixing the first mounting plate 11 and the engine thrust platform locking device 2, and connecting the second mounting plate 12 and the engine bracket 3 to fix and support the engine, the engine and the second mounting plate 12 can form a relatively fixed state. The force exerted by the first mounting plate 11 and the second mounting plate 12 when the engine is not generating thrust is calibrated by the calibration component 132. When the engine starts, it generates thrust acting on the second mounting plate 12. Since the first mounting plate 11 is fixed, a displacement occurs between the first mounting plate 11 and the second mounting plate 12. The force measuring component is positioned between the first mounting plate 11 and the second mounting plate 12, so the force measuring component 131 can detect the thrust generated by the engine based on the displacement between the first mounting plate 11 and the second mounting plate 12. For different types and sizes of engines, the original force measuring component can be removed from between the first mounting plate 11 and the second mounting plate 12 to replace it with a different force measuring component, thereby improving the applicability of the engine thrust platform thrust measuring device 1 for engine thrust detection.

[0054] The engine can be fixed on the engine bracket 3, and the engine thrust platform locking device 2 can fix the engine thrust platform thrust measuring device 1 when the engine starts. When the engine starts, the thrust generated by the engine will cause the second mounting plate 12 to displace along the engine axis through the engine bracket 3. The first mounting plate 11 is fixed by the engine thrust platform locking device 2. Therefore, a relative displacement will be generated between the first mounting plate 11 and the second mounting plate 12 due to the engine thrust. The force measuring component 13 installed between the first mounting plate 11 and the second mounting plate 12 can calculate the thrust generated by the engine based on the displacement between the first mounting plate 11 and the second mounting plate 12. Due to the influence of the test bench manufacturing and thermal deformation, a certain displacement may occur between the first mounting plate 11 and the second mounting plate 12, resulting in an action force. This action force will affect the accuracy of the engine thrust measurement. Therefore, when using the force measuring component 13, it is necessary to first calibrate the first mounting plate 11 and the second mounting plate 12 with the calibration component 132, and then use the force measuring component 131 to measure the thrust generated by the engine.

[0055] To improve the accuracy of testing for engines of different sizes and models, multiple force measuring components 13 are set up. The lifting drive component 14 can drive the force measuring component 13 corresponding to the engine size and model to rise and connect with the second mounting plate 12, or lower the corresponding force measuring component 13 to connect with the first mounting plate 11. This allows the engine thrust table thrust measuring device 1 to test the thrust of engines of different sizes and models, eliminating the need to prepare multiple different engine thrust table thrust measuring devices 1, improving the applicability of the engine thrust table thrust measuring device 1, saving testing time and costs, and improving testing efficiency.

[0056] Specifically, in this embodiment, the lifting drive component 14 can be a lifting drive motor, a hydraulic lift, etc. The control system sends a control signal to the lifting drive component 14 so that the lifting drive component 14 can rise or fall.

[0057] For engines of different sizes and models, a force measuring component 13 corresponding to that engine model can be selected and connected to the first mounting plate 11 and the second mounting plate 12. When testing other engine models, the force measuring component 13 can be removed from between the first mounting plate 11 and the second mounting plate 12 and replaced with a new set of corresponding force measuring components 13. By detachably connecting the force measuring component 13 to the first mounting plate 11 and the second mounting plate 12 respectively, the appropriate force measuring component 13 can be selected according to the engine model and size to test the engine thrust, thereby improving the applicability of the engine thrust table thrust measuring device 1.

[0058] Optionally, in one example, the force measuring component 131 includes:

[0059] The first mounting base 1311 is detachably connected to the first mounting plate 11;

[0060] The second mounting base 1312 is detachably connected to the second mounting plate 12;

[0061] Force sensor 1313, with its two ends connected to first mounting base 1311 and second mounting base 1312 respectively.

[0062] By connecting the two ends of the force sensor 1313 to the first mounting base 1311 and the second mounting base 1312 respectively, and detachably connecting the first mounting base 1311 to the first mounting plate 11, and detachably connecting the second mounting base 1312 to the second mounting plate 12, it is convenient to disassemble and replace the force measuring component 131 with the first mounting plate 11 and the second mounting plate 12. The first mounting plate is connected to the engine bracket 3, and the second mounting plate 12 is connected to the engine thrust platform locking device 2. When the engine is tested for thrust, the first mounting plate 11 and the second mounting plate 12 will have relative displacement, which will also cause the first mounting base 1311 and the second mounting base 1312 to have relative position. Thus, the force sensor 1313 can measure the force used to generate displacement between the first mounting base 1311 and the second mounting base 1312, i.e., the engine thrust, based on the relative displacement between the first mounting base 1311 and the second mounting base 1312.

[0063] Specifically, the force sensor 1313 can be a temperature-controlled force gauge. The sensor is completely isolated from the outside world through an asbestos mesh, with concealed wiring. Temperature control and data processing are handled independently. The temperature is maintained at a constant 41℃ (requiring 3 to 4 hours of preheating), isolating the sensor's operating temperature from the ambient temperature. This improves the sensor's accuracy and better protects it, with a temperature error of ±1℃. The sensor can operate in ambient temperatures ranging from 220K to 400K.

[0064] Optionally, in one example, the force measuring component 131 further includes:

[0065] The first flexible transmission component 1314 has its two ends connected to the first mounting base 1311 and the force sensor 1313, respectively. The first thrust sensor, in conjunction with the first flexible transmission component 1314, achieves a flexible connection by connecting its two ends to the first mounting base 1311 and the force sensor 1313, eliminating the influence of lateral force on the measurement. The force sensor 1313 can meet the requirements for tensile / compressive measurement. A digital sensor is used, with built-in force and temperature control modules, eliminating the need for secondary instruments and directly transmitting data to the system via an RS485 serial port. A digital sensor refers to a traditional analog sensor that has been modified by adding or altering an A / D conversion module to output a digital signal (or digital encoding). It mainly includes: an amplifier, an A / D converter, a microprocessor (CPU), a memory, a communication interface, and a temperature testing circuit.

[0066] Optionally, in one example, the calibration component 132 includes:

[0067] The third mounting base 1321 is detachably connected to the first mounting plate 11;

[0068] The fourth mounting base 1322 is detachably connected to the second mounting plate 12;

[0069] The calibration sensor 1323 is connected at both ends to the first mounting base 1311 and the second mounting base 1312, respectively.

[0070] Hydraulic cylinder 1324 is connected to the end of the third mounting base 1321 away from the calibration sensor 1323.

[0071] By configuring a calibration sensor 1323 and a hydraulic cylinder 1324, and by connecting the calibration sensor 1323 to the first mounting plate via the third mounting base 1321 and to the second mounting plate via the fourth mounting base 1322, the engine can be connected to the second mounting plate 12 via the engine bracket 3, and the first mounting plate 11 can be fixedly locked to the engine thrust platform locking device 2. Based on this, during engine thrust testing, the engine thrust is applied to the calibration sensor 1323 via the engine bracket 3 and the second mounting plate 12. The hydraulic cylinder 1324 then provides a reaction force to the calibration sensor 1323 via the third mounting base 1321 to balance the engine thrust. This allows the balance between engine thrust and reaction force to be observed through the calibration sensor 1323, thereby improving the accuracy of subsequent engine thrust measurements.

[0072] The calibration component 132 operates in two modes: one is a fully automatic mode, which automatically controls the hydraulic cylinder through the control device to apply the calibration load, collect and process data, and print data. The output format of the data processing can be modified according to the user's requirements. The other is a semi-automatic mode (i.e., the so-called manual mode), which sets the force calibration point through the control device and starts the test. After loading to the set calibration force point, manual intervention is required to proceed to the next set point test (i.e., after the software controls the calibration force measurement system to load or unload to a certain set calibration force value, the force value is maintained until the operator believes that the next force calibration point can be performed. The operator then clicks the corresponding operation button on the control device with the left mouse button to perform the calibration of the next force calibration point. Otherwise, the force value remains at the current set calibration force value.

[0073] It should be noted that the holding time of the calibration load value can be set arbitrarily according to actual needs; the magnitude of the calibration force value can also be set arbitrarily according to actual needs.

[0074] The hydraulic cylinder 1324 drives the piston of the small cylinder (control cylinder) to reciprocate linearly through the mechanical transmission system, which in turn causes the piston of the large cylinder (loading cylinder) to reciprocate linearly, thereby realizing the loading / unloading of the calibration sensor 1323.

[0075] Furthermore, the measurement accuracy of the calibration sensor 1323 is greater than that of the force sensor 1313, thus enabling a better balance between action and reaction forces. The calibration sensor 1323 can be a bidirectional thrust sensor, which is placed on the engine thrust platform locking device 2 and the engine bracket 3 via the third mounting base 1321 and the fourth mounting base 1322, with an accuracy of 0.1 class. The force measuring assembly 131 requires frequent use and is not suitable for disassembly; therefore, the calibration sensor 1323 (system accuracy 0.1 class) is needed to calibrate the force measuring assembly 131. During calibration, the calibration sensor 1323 is pushed by a portable hydraulic cylinder 1324, and the data is compared with the measured working instrument to achieve the calibration purpose. The sensor is a digital sensor with built-in force and temperature control modules, eliminating the need for secondary instruments and directly transmitting data to the system via an RS485 serial port.

[0076] Alternatively, in one example, calibration component 132 further includes:

[0077] The second flexible transmission component 1325 has its two ends connected to the third mounting base 1321 and the calibration sensor 1323, respectively.

[0078] The second flexible transmission component 1325 and the first flexible transmission component 1314 have similar structures and effects, and will not be described in detail here.

[0079] Optionally, in one example, the engine thrust platform thrust measuring device 1 further includes:

[0080] Spring sheet 15 is located on one side of the first mounting plate 11 and the second mounting plate 12 along the thrust direction, and the two ends of spring sheet 15 are respectively connected to the first mounting plate 11 and the second mounting plate 12.

[0081] Spring plate 15, as an elastic micro-motion guiding mechanism, is mainly used for measuring force, pressure, strain, etc. Spring plate 15 has many advantages, including simple structure, no guide gap, no bias displacement, sensitive response, high guiding accuracy, and no creeping, and is easy to process and assemble. Spring plate 15 is a key component of the force measuring bench. In this example, the material of spring plate 15 is 60Si2MnA and it is a forging with a tensile strength limit of 1570MPa. High dimensional accuracy and surface roughness are required, and the thickness difference between the two working sections and the non-working section is large, resulting in significant processing deformation. Therefore, a reasonable processing technology and method must be selected. It should be noted that all spring plates 15 in this example must have the same elastic modulus after processing, the same batch of materials should be used, and post-processing inspection and verification are required.

[0082] Therefore, by setting the spring plate 15 to connect the first mounting plate 11 and the second mounting plate 12 respectively, the displacement between the first mounting plate 11 and the second mounting plate 12 caused by the externally applied force or pressure (engine thrust) can be sensitively detected and converted into the deformation of the spring, thereby realizing the accurate measurement of the externally applied force or pressure (engine thrust).

[0083] Preferably, the spring sheet is positioned on the side of the first mounting plate 11 and the second mounting plate 12 along the thrust generated by the engine. This allows for better conversion of the thrust generated by the engine into spring deformation, thereby enabling more accurate measurement of the externally applied force or pressure (engine thrust).

[0084] Example 2:

[0085] like Figure 4 and 5 As shown, optionally, in one example, the force measuring component 13 includes a first force measuring component 13a, which includes a force measuring assembly 131 and a calibration assembly 132. The force measuring assembly 131 and the calibration assembly 132 are in the same vertical plane as the engine axis and the horizontal plane is parallel to the engine axis. The axial direction of the force measuring assembly 131 and the axial direction of the calibration assembly 132 are both parallel to the axial direction of the engine. The force measuring assembly 131 and the calibration assembly 132 are on the same horizontal plane.

[0086] Small engines are small in size and short in both the axial and longitudinal directions. Because the engine is small, the thrust it produces is also small. The thrust of a small engine can be approximated along the engine's axial direction. In order to detect the thrust of a small engine, the force measuring component 131 and the calibration component 132 of the first force measuring component 13a are placed in the same vertical plane along the engine's axis, thereby improving the accuracy and stability of thrust measurement for small engines.

[0087] The force sensor 1313 and the calibration sensor 1323 are in the same horizontal plane and parallel to the engine axis, ensuring that the measured value of the force sensor 1313 can truly reflect the actual thrust of the engine.

[0088] Optionally, in one example, the force measuring component 13 includes a second force measuring component 13b, which includes two force measuring components 131 and a calibration component 132. The calibration component 132 is in the same vertical plane as the engine axis. The two force measuring components 131 are respectively disposed on both sides of the calibration component 132, and the two force measuring components 131 and the calibration component 132 are all located on the same horizontal plane, which is parallel to the engine axis. The distance between each force measuring component 131 and the calibration component 132 is equal, and the axial direction of the force measuring component 131 and the axial direction of the calibration component 132 are both parallel to the axial direction of the engine.

[0089] For engines with a long axial distance and a short longitudinal distance, the engine thrust is a multi-dimensional vector, including multiple components such as main thrust and lateral force. For engines with a longer axial distance, the torque effect generated by the thrust may be more significant. If only the arrangement of the force measuring component 131 and calibration component 132 in the first force measuring component 13a is used, it may not be possible to accurately capture the components of the thrust in each direction, resulting in measurement errors. For engines with a long axial distance and a short longitudinal distance, in order to accurately measure their thrust, a second force measuring component 13b is set up, with the two force measuring components 131 arranged on both sides of the engine axis. Since the longitudinal distance of this type of engine is short, the longitudinal error is not large, so the force measuring component 131 can still be set in the same vertical plane as the engine axis. To further improve the accuracy of the two force measuring components 131 and calibration component 132, all three need to be set in the same plane, and the axial directions of the three should also be aligned with the axial direction of the engine.

[0090] Optionally, in one example, the force measuring component 13 includes a third force measuring component 13c, which includes two force measuring components 131 and two calibration components 132. One force measuring component 131 and one calibration component 132 are coaxially connected to form a force measuring group 13d. The axial direction of the force measuring group 13d is parallel to the axial direction of the engine. The two force measuring groups 13d are respectively set on both sides of the vertical plane of the engine axis. The distance between each force measuring group 13d and the vertical plane is equal. The two force measuring groups 13d are both located on the same horizontal plane, and the horizontal plane is parallel to the engine axis.

[0091] For engines with long axial and longitudinal distances, the thrust of large engines is typically very large, and due to their large size, the thrust may be unevenly distributed axially. Traditional single-point measurements or simple structures may fail to accurately capture the thrust distribution of the entire large engine, leading to measurement errors. By setting up a third force measuring component 13c, in which two force measuring groups 13d are set, the thrust on both sides of the large engine's axis can be measured separately. This design helps to capture the uneven axial distribution of thrust in large engines, improving measurement accuracy. A force measuring component 131 and a calibration component 132 are coaxially connected to form a force measuring group 13d. This structure ensures the consistency and accuracy of measurements, reducing errors caused by relative movement or deformation between components. The axial direction of the force measuring group 13d is parallel to the engine's axial direction. This setting ensures that the force measuring component 131 directly measures the thrust generated by the engine, rather than forces or torques in other directions. The two force measuring groups 13d are respectively set on both sides of the vertical plane of the engine axis, and each force measuring group 13d is equidistant from the vertical plane. This symmetrical layout can further reduce measurement errors caused by engine structural asymmetry or external interference.

[0092] Specifically, in the force measuring assembly 13d, the second mounting base 1312 of the force measuring component 131 and the fourth mounting base 1322 of the calibration component 132 can be connected to each other or combined into one mounting base.

[0093] It should be noted that, in this embodiment, different models of engines can be distinguished by their different sizes.

[0094] In the above embodiment 2, each structure in the above embodiment 1 is included, and each process in the above embodiment 1 can be implemented, achieving the same technical effect. To avoid repetition, it will not be described again here.

[0095] Example 3:

[0096] The engine thrust measuring device includes any one of the engine thrust platform thrust measuring devices 1 in Embodiment 1 or 2 above.

[0097] In the above embodiment 3, each structure in the above embodiment 1 and / or 2 is included, and each process in the above embodiment 1 and / or 2 can be implemented, achieving the same technical effect. To avoid repetition, it will not be described again here.

[0098] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A thrust measuring device for an engine thrust platform, characterized in that, The thrust measuring device of the engine thrust platform includes: First mounting plate; Second mounting plate; Multiple sets of force measuring components, each set of force measuring components includes a force measuring component and a calibration component, the force measuring component and the calibration component are disposed between the first mounting plate and the second mounting plate, and the force measuring component and the calibration component are detachably connected to the first mounting plate and the second mounting plate respectively.

2. The thrust measuring device for an engine thrust platform as described in claim 1, characterized in that, The force measuring component includes: A first mounting base, wherein the first mounting base is detachably connected to the first mounting plate; A second mounting base is detachably connected to the second mounting plate; A force sensor, the two ends of which are connected to the first mounting base and the second mounting base, respectively.

3. The thrust measuring device for an engine thrust platform as described in claim 2, characterized in that, The force measuring component also includes: The first flexible transmission component has its two ends connected to the first mounting base and the force sensor, respectively.

4. The thrust measuring device for an engine thrust platform as described in claim 2, characterized in that, The calibration components include: A third mounting base is detachably connected to the first mounting plate; A fourth mounting base, which is detachably connected to the second mounting plate; A calibration sensor is provided, with its two ends connected to the first mounting base and the second mounting base, respectively. A hydraulic cylinder is connected to the end of the third mounting base away from the calibration sensor.

5. The thrust measuring device for an engine thrust platform as described in claim 4, characterized in that, The calibration component also includes: The second flexible transmission component has its two ends connected to the third mounting base and the calibration sensor, respectively.

6. The thrust measuring device for an engine thrust platform as described in claim 1, characterized in that, The thrust measuring device for the engine thrust platform also includes: A spring sheet is located on one side of the first mounting plate and the second mounting plate along the thrust direction, and both ends of the spring sheet are connected to the first mounting plate and the second mounting plate, respectively.

7. The thrust measuring device for an engine thrust platform as described in any one of claims 1-6, characterized in that, The force measuring component includes a first force measuring component, which includes a force measuring assembly and a calibration assembly. The force measuring assembly and the calibration assembly are in the same vertical plane as the engine axis, and the axial direction of the force measuring assembly and the axial direction of the calibration assembly are both parallel to the axial direction of the engine. The force measuring assembly and the calibration assembly are on the same horizontal plane, and the horizontal plane is parallel to the engine axis.

8. The thrust measuring device for an engine thrust platform as described in any one of claims 1-6, characterized in that, The force measuring component includes a second force measuring component, which includes two force measuring assemblies and a calibration assembly. The calibration assembly is located in the same vertical plane as the engine axis. The two force measuring assemblies are respectively disposed on both sides of the calibration assembly, and both force measuring assemblies and the calibration assembly are located on the same horizontal plane, which is parallel to the engine axis. The distance between each force measuring assembly and the calibration assembly is equal, and the axial direction of the force measuring assembly and the axial direction of the calibration assembly are both parallel to the axial direction of the engine.

9. The thrust measuring device for an engine thrust platform as described in any one of claims 1-6, characterized in that, The force measuring component includes a third force measuring component, which includes two force measuring assemblies and two calibration assemblies. One force measuring assembly and one calibration assembly are coaxially connected to form a force measuring group. The axial direction of the force measuring group is parallel to the axial direction of the engine. The two force measuring groups are respectively arranged on both sides of the vertical plane of the engine axis. Each force measuring group is equidistant from the vertical plane. Both force measuring groups are located on the same horizontal plane, and this horizontal plane is parallel to the engine axis.

10. An engine thrust measuring device, characterized in that, The engine thrust measuring device includes the engine thrust platform thrust measuring device as described in any one of claims 1-9.

Images