Engine thrust table locking device and engine thrust force measuring equipment

Abstract

The utility model discloses an engine thrust table locking device and engine thrust measuring equipment, which comprises a base, sliding rails, a driving assembly and a sliding positioning assembly, and is characterized in that the sliding rails are mounted on the base in parallel; the driving assembly is installed on the base, and the driving assembly is connected with the engine thrust table thrust force measuring device and used for driving the engine thrust table thrust force measuring device to move along the sliding rail; the sliding positioning assembly is connected with the engine thrust table thrust force measuring device, is in sliding connection with the sliding rail, and is used for fixing the engine thrust table thrust force measuring device on the sliding rail. On the basis, the thrust measuring device of the engine thrust table can freely adjust the driving distance through the driving assembly, and can be fixed on the sliding rail at any time through the sliding positioning assembly, so that fixation during testing of the thrust of the engine is facilitated, and the accuracy of detecting the thrust of the engine by the thrust measuring device of the engine thrust table is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the engine detection field, especially related to a kind of engine thrust platform locking device and engine thrust force measuring equipment. BACKGROUND

[0002] With the diversity of engine and the change of test environment, in order to realize the axial thrust measurement of different distances.Usually, different range measurement components are replaced for testing, but this is inefficient, and the installation precision is reduced, and the test result has large error.

[0003] At present, in order to improve the measurement accuracy of engine axial thrust, the engine horizontal thrust can be indirectly obtained by measuring the vertical downward pressure of the engine, for example, in the patent with publication number CN114216688B, a micro turbine engine thrust measuring device is disclosed.The device is mainly composed of a force dynamic support, an engine mounting clamp, a balance bar, a front balance block, a rear balance block, a ball bearing, a force static support and a force bar.The micro turbine engine is horizontally fixed on the device, and the engine tail nozzle direction is to the right.The ball bearing is fixed on the force static support, the force dynamic support is connected with the force static support through the ball bearing, the force dynamic support can rotate around the ball bearing, and the front balance block and the rear balance block on the balance bar are adjusted to make the thrust measuring device in the balanced state.After the engine starts, the force dynamic support rotates counterclockwise around the ball bearing under the left thrust, and the pressure sensor fixed on the experimental platform receives the vertical downward pressure of the force bar, and converts the measurement value of the pressure sensor into the thrust value of the micro turbine engine.

[0004] Although the micro turbine engine thrust measuring device mentioned in the above patent can solve the problem of inaccurate measurement of different ranges, in the measurement, the front balance block and the rear balance block on the balance bar need to be adjusted to make the thrust measuring device in the balanced state, which may be relatively complex and difficult to control accurately, and small deviation of the balanced state may cause error of the measurement result, thereby causing inaccurate engine thrust measurement. UTILITY MODEL CONTENTS

[0005] The utility model provides a kind of engine thrust platform locking device and engine thrust force measuring equipment to solve the problem of inaccurate measurement caused by the need to replace different range measurement components for thrust measurement.

[0006] According to the first aspect of the utility model, an engine thrust platform locking device is provided.

[0007] The engine thrust platform locking device is connected with the engine thrust platform thrust force measuring device, and is used for locking the engine thrust platform thrust force measuring device.The engine thrust platform locking device comprises:

[0008] Base

[0009] The slide rails are mounted side-by-side on the base.

[0010] The drive assembly is mounted on the base and is connected to the thrust measuring device of the engine thrust table, and is used to drive the thrust measuring device of the engine thrust table to move along the slide rail.

[0011] A sliding positioning assembly is connected to the thrust measuring device of the engine thrust platform and is slidably connected to the slide rail, used to fix the thrust measuring device of the engine thrust platform on the slide rail.

[0012] Optionally, the driving component includes:

[0013] Drive motor;

[0014] The lead screw is connected to the output shaft of the drive motor.

[0015] The lead screw and nut are connected to the lead screw and the engine thrust platform thrust measuring device. The output shaft of the drive motor rotates so that the lead screw and nut can drive the engine thrust platform thrust measuring device to move along the length of the slide rail.

[0016] Optionally, the driving component also includes:

[0017] The speed reducer has its input end connected to the output shaft of the drive motor and its output end connected to the lead screw.

[0018] Optionally, the driving component also includes:

[0019] The shaft connector has one end connected to the output end of the reducer and the other end connected to the lead screw.

[0020] Optionally, the driving component also includes:

[0021] The bearing housing is mounted on the base, and the lead screw passes through the bearing housing and is rotatably connected to it.

[0022] Optionally, the slide rail is a linear slide rail, with the lead screw and the slide rail arranged in parallel.

[0023] Optionally, the sliding positioning component includes:

[0024] The positioning block is fixedly connected to the thrust measuring device of the engine thrust platform. The positioning block is used to fix the slide rail according to the positioning signal.

[0025] Optionally, the sliding positioning component also includes:

[0026] The sliding block has one end fixedly connected to the thrust measuring device of the engine thrust platform, and the other end slidably connected to the slide rail.

[0027] Optionally, the number of slide rails is two, and the two slide rails are arranged side by side;

[0028] The number of slide rails corresponds to the number of sliding positioning components.

[0029] According to a second aspect of the present invention, an embodiment of the present invention provides an engine thrust measuring device, which includes an engine thrust platform locking device as described in any of the first aspects.

[0030] The technical solutions provided by the embodiments of this utility model bring at least the following beneficial effects:

[0031] This utility model provides an engine thrust platform locking device and an engine thrust measuring device. The engine thrust platform locking device includes a base, a slide rail, a drive assembly, and a sliding positioning assembly. The slide rail is mounted side-by-side on the base. The drive assembly is mounted on the base and connected to the engine thrust platform thrust measuring device, driving the engine thrust platform thrust measuring device to move along the slide rail. The sliding positioning assembly is connected to the engine thrust platform thrust measuring device and slidably connected to the slide rail, fixing the engine thrust platform thrust measuring device to the slide rail. Upon receiving a stop drive signal, the drive assembly stops driving the engine thrust platform thrust measuring device to move on the slide rail. Upon receiving a fixation signal, the sliding positioning assembly fixes itself to the slide rail, thereby allowing the engine thrust platform thrust measuring device to be fixed. Therefore, the thrust measuring device of the engine thrust platform can freely adjust the driving distance through the driving component, and can be fixed on the slide rail at any time by the sliding positioning component, so as to facilitate fixation when testing engine thrust, thereby improving the accuracy of engine thrust detection by the thrust measuring device of the engine thrust platform.

[0032] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit the present invention. Attached Figure Description

[0033] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention, but do not constitute an undue limitation of the present invention.

[0034] Figure 1 This is a schematic diagram of the structure of an engine thrust platform locking device according to an exemplary embodiment;

[0035] Figure 2 This is another structural schematic diagram of an engine thrust platform locking device according to an exemplary embodiment;

[0036] Figure 3This is a schematic diagram illustrating the connection relationship between the engine thrust platform locking device and the engine thrust platform thrust measuring device according to an exemplary embodiment.

[0037] Legend:

[0038] Legend Name Legend Name 1 Engine thrust stand locking device 11 Base 12 Slide rail 13 Drive assembly 131 Drive motor 132 Lead screw 133 Lead screw nut 134 Speed reducer 135 Shaft coupler 136 Bearing seat 14 Sliding positioning assembly 141 Positioning block 142 Sliding block 2 Engine thrust stand thrust force measuring device Detailed Implementation

[0039] In the description of this utility model, 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, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model. 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 utility model according to the specific circumstances.

[0041] In this invention, 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 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 invention.

[0042] In this specification, the illustrative expressions of the terms used 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 the specification are only a part of, and not all, of the embodiments of this disclosure.

[0043] 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.

[0044] Based on this, the present invention provides an engine thrust table locking device and an engine thrust measuring device. The engine thrust table locking device provided in the embodiments of the present invention will be described below first.

[0045] Figure 1 A schematic diagram of the structure of an engine thrust table locking device according to an embodiment of the present invention is shown; Figure 2 This is another structural schematic diagram of an engine thrust platform locking device according to an exemplary embodiment. Figure 3 This is a schematic diagram illustrating the connection relationship between the engine thrust platform locking device and the engine thrust platform thrust measuring device according to an exemplary embodiment. Figures 1-3 As shown, the engine thrust platform locking device may include the following structure:

[0046] Example 1;

[0047] The engine thrust platform locking device 1 is connected to the engine thrust platform thrust measuring device 2 and is used to lock the engine thrust platform thrust measuring device 2. The engine thrust platform locking device 1 includes:

[0048] Base 11,

[0049] Slide rail 12 is mounted side by side on base 11;

[0050] Drive assembly 13 is mounted on base 11 and is connected to engine thrust table thrust measuring device 2 for driving engine thrust table thrust measuring device 2 to move along slide rail 12.

[0051] The sliding positioning component 14 is connected to the engine thrust platform thrust measuring device 2 and is slidably connected to the slide rail 12, and is used to fix the engine thrust platform thrust measuring device 2 on the slide rail 12.

[0052] By setting the slide rail 12 and mounting it on the base 11, the engine thrust platform thrust measuring device 2 is connected to the drive assembly 13 and the sliding positioning assembly 14. The drive assembly 13 provides a driving force to the engine thrust platform thrust measuring device 2. Under the action of the driving force, the engine thrust platform thrust measuring device 2 slides on the slide rail 12 through the sliding positioning assembly 14. The control device can send a fixing signal to the sliding positioning assembly 14 and a stop driving signal to the drive assembly 13. After receiving the stop driving signal, the drive assembly 13 stops driving the engine thrust platform thrust measuring device 2 to move on the slide rail 12. After receiving the fixing signal, the sliding positioning assembly 14 is fixed on the slide rail 12, thereby allowing the engine thrust platform thrust measuring device 2 to be fixed. Therefore, the engine thrust tester thrust measuring device 2 can freely adjust the driving distance through the driving component 13, and can be fixed on the slide rail 12 at any time by the sliding positioning component 14, so as to facilitate fixation when testing engine thrust, thereby improving the accuracy of engine thrust detection by the engine thrust tester thrust measuring device 2.

[0053] Optionally, in one example, the drive assembly 13 may include: a drive motor 131; and a lead screw 132 connected to the output shaft of the drive motor 131.

[0054] The lead screw nut 133 is connected to the lead screw 132 and is connected to the engine thrust table thrust measuring device 2. The output shaft of the drive motor 131 rotates so that the lead screw nut 133 drives the engine thrust table thrust measuring device 2 to move along the length of the slide rail 12.

[0055] After receiving the drive signal, the output shaft of the drive motor 131 starts to rotate, thereby driving the lead screw 132 to rotate. When the lead screw 132 rotates, it also drives the lead screw nut 133 to rotate. The lead screw nut 133 can move along the axial direction of the lead screw through the rotation of the lead screw, thereby realizing the conversion of force and motion direction. Thus, while the lead screw nut 133 is rotating, it can drive the engine thrust table thrust measuring device 2 to move along the axial direction of the lead screw 132. The engine thrust table thrust measuring device 2 is slidably connected to the slide rail 12 through the sliding positioning component 14. Therefore, the lead screw nut 133 can also drive the engine thrust table thrust measuring device 2 to move along the length direction of the slide rail 12.

[0056] The drive motor 131 is a servo motor. The servo motor has an absolute encoder to determine the current position and uploads the current position data through Profinet communication. In order to prevent equipment damage caused by the loss of encoder position, the drive component 13 can also be equipped with two limit switches connected to the servo motor to protect the engine thrust table locking device 1 and determine the origin position.

[0057] Optionally, in one example, the drive assembly 13 may further include a speed reducer 134, the input end of which is connected to the output shaft of the drive motor 131, and the output end of which is connected to the lead screw 132.

[0058] Typically, the drive motor 131 generates a high rotational speed after receiving the drive signal, resulting in a rapid displacement rate for the engine thrust table thrust measuring device 2. However, if the displacement rate of the engine thrust table thrust measuring device 2 is too fast, it will be difficult to fix the engine thrust table thrust measuring device 2, and the fixation accuracy will be difficult. Therefore, a reducer 134 is required. The input end of the reducer 134 is connected to the output shaft of the drive motor 131, and the output end of the reducer 134 is connected to the lead screw 132. This way, the lead screw 132 and the drive motor 131 are not directly connected. The rotational speed of the output shaft of the drive motor 131 is reduced by the reducer 134 before being output to the lead screw 132.

[0059] Optionally, in one example, the drive assembly 13 may further include a coupling 135, one end of which is connected to the output end of the reducer 134, and the other end of which is connected to the lead screw 132. By setting the coupling 135, the reducer 134 and the lead screw 132 can be effectively connected, while also reducing vibration between the reducer 134 and the lead screw 132 and improving the transmission efficiency between them.

[0060] Optionally, in one example, the drive assembly 13 may further include a bearing housing 136, which is mounted on the base 11, and the lead screw 132 passes through and is rotatably connected to the bearing housing 136. The bearing housing 136 supports the lead screw 132, enabling it to bear the axial and radial loads of the lead screw 132, support its rotation, and reduce vibrations caused by its excessive length.

[0061] Alternatively, in one example, the slide rail 12 is a linear slide rail 12, and the lead screw 132 is arranged in parallel with the slide rail 12.

[0062] By setting the slide rail 12 as a linear slide rail 12 and making the lead screw 132 parallel to the slide rail 12, the lead screw 132 rotates to drive the engine thrust platform thrust measuring device 2 to move along the length direction of the lead screw 132. At the same time, the engine thrust platform thrust measuring device 2 can also move more smoothly on the slide rail 12 through the sliding positioning component 14, reducing the possibility of shaking when the engine thrust platform thrust measuring device 2 slides on the slide rail 12, which is beneficial to improving the sliding stability of the engine thrust platform thrust measuring device 2.

[0063] Example 2:

[0064] Alternatively, in one example, the sliding positioning component 14 may include:

[0065] Positioning block 141 is fixedly connected to the thrust measuring device 2 of the engine thrust platform. Positioning block 141 is used to fix the slide rail 12 according to the positioning signal.

[0066] After receiving the positioning signal, the positioning block 141 can clamp the slide rail 12 to fix it. The positioning block 141 is fixedly connected to the engine thrust platform thrust measuring device 2. Therefore, by clamping the slide rail 12 with the positioning block 141, the engine thrust platform thrust measuring device 2 can be made stationary, thereby positioning the engine thrust platform thrust measuring device 2.

[0067] Furthermore, a positioning signal can be sent to the positioning block 141 via a hydraulic device, and the positioning block 141 can be hydraulically controlled to clamp or loosen the slide rail 12. Specifically, the drive motor 131 drives the hydraulic device to generate pressure, which is stored in an accumulator and output to the positioning block 141 via a brake solenoid valve, so that the positioning block 141 can unlock or lock the platform. A pressure sensor is used to monitor the pressure in the accumulator to control the start and stop of the drive motor 131, so that the drive motor 131 stops driving when the positioning block 141 clamps the slide rail 12, or starts driving simultaneously when the positioning block 141 loosens the slide rail 12. Thus, the positioning block 141 and the drive motor 131 jointly complete the position adjustment and locking function of the engine thrust platform locking device 1.

[0068] Optionally, in one example, the sliding positioning component 14 further includes:

[0069] Sliding block 142, one end of which is fixedly connected to the thrust measuring device 2 of the engine thrust platform, and the other end of which is slidably connected to the slide rail 12.

[0070] The sliding block 142 is fixedly connected to the thrust measuring device 2 of the engine thrust platform at one end and slidably connected to the slide rail 12 at the other end, so that the sliding block 142 can slide freely on the slide rail 12, thereby driving the thrust measuring device 2 of the engine thrust platform to move on the slide rail 12.

[0071] Preferably, the sliding block 142 can be a pulley that matches the slide rail 12.

[0072] Optionally, in one example, there are two slide rails 12 arranged side by side; the number of slide rails 12 corresponds to the number of sliding positioning components 14.

[0073] By arranging two slide rails 12 side by side, the sliding block 142 can slide more stably on the slide rails 12, thereby effectively ensuring the stability of the engine thrust platform thrust measuring device 2 during sliding. Furthermore, the number of slide rails 12 corresponds to the number of sliding positioning components 14, thereby ensuring that each slide rail 12 has a sliding positioning component 14 to achieve sliding and positioning, ensuring both the stability of sliding and the effectiveness of positioning.

[0074] More specifically, in each group of sliding positioning components 14, there can be multiple sliding blocks 142 and positioning blocks 141. In this embodiment, there are two slide rails 12 and two groups of sliding positioning components 14. Each group of sliding positioning components 14 includes one positioning block 141 and two sliding blocks 142. In other embodiments, the number of slide rails 12 and sliding positioning components 14, and the number of sliding blocks 142 and positioning blocks 141 in each sliding positioning component 14 can be adjusted according to the actual situation. Therefore, this utility model does not impose specific limitations on the number of slide rails 12, sliding positioning components 14, sliding blocks 142 and positioning blocks 141.

[0075] 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.

[0076] Example 3:

[0077] An engine thrust measuring device, which includes any one of the engine thrust platform locking devices 1 in Embodiments 1 and / or 2 above.

[0078] 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.

[0079] The above description is merely a specific embodiment of this utility model. Those skilled in the art will 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 utility model 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 utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model.

Claims

1. A locking device for an engine thrust platform, characterized in that, The engine thrust platform locking device is connected to the engine thrust platform thrust measuring device and is used to lock the engine thrust platform thrust measuring device. The engine thrust platform locking device includes: Base Slide rails, which are mounted side-by-side on the base; A drive assembly is mounted on the base and connected to the thrust measuring device of the engine thrust platform, for driving the thrust measuring device of the engine thrust platform to move along the slide rail; A sliding positioning component is provided, which is connected to the thrust measuring device of the engine thrust platform and slidably connected to the slide rail, for fixing the thrust measuring device of the engine thrust platform on the slide rail.

2. The apparatus as claimed in claim 1, characterized in that, The driving component includes: Drive motor; A lead screw, which is connected to the output shaft of the drive motor; A lead screw nut is connected to the lead screw and to the thrust measuring device of the engine thrust platform. The output shaft of the drive motor rotates so that the lead screw nut drives the thrust measuring device of the engine thrust platform to move along the length of the slide rail.

3. The apparatus as described in claim 2, characterized in that, The driving component also includes: The speed reducer has its input end connected to the output shaft of the drive motor and its output end connected to the lead screw.

4. The apparatus as described in claim 3, characterized in that, The driving component also includes: A shaft connector, one end of which is connected to the output end of the reducer, and the other end of which is connected to the lead screw.

5. The apparatus as described in claim 2, characterized in that, The driving component also includes: A bearing housing is mounted on the base, and the lead screw passes through the bearing housing and is rotatably connected to the bearing housing.

6. The apparatus as claimed in claim 2, characterized in that, The slide rail is a linear slide rail, and the lead screw is arranged parallel to the slide rail.

7. The apparatus as claimed in claim 1, characterized in that, The sliding positioning component includes: The positioning block is fixedly connected to the thrust measuring device of the engine thrust platform, and the positioning block is used to fix the slide rail according to the positioning signal.

8. The apparatus as claimed in claim 1, characterized in that, The sliding positioning component further includes: A sliding block, one end of which is fixedly connected to the thrust measuring device of the engine thrust platform, and the other end of which is slidably connected to the slide rail.

9. The apparatus as claimed in any one of claims 1-8, characterized in that, The slide rails are of two types, and the two slide rails are arranged side by side; The number of slide rails corresponds to the number of sliding positioning components.

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

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