Engine detection device
By designing an engine detection device including a detection platform, support seat and detection components, the problem of inaccurate diameter of manual measurement of output shaft is solved, real-time and accurate monitoring of the engine output shaft status is achieved, and detection accuracy is ensured.
Patent Information
- Application Number
- CN202421014308.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-05-11
AI Technical Summary
In the prior art, there is a problem of inaccurate data in manual measurement of the diameter of the engine output shaft, which cannot meet the requirements of detection accuracy.
An engine detection device is designed, including a detection platform, a support seat, a detection component, etc. The detection component is composed of a column, a detection rod, an elastic body, a pressure-sensitive element, a fixed cylinder and a controller, and contacts the side wall of the output shaft through the detection rod. , the pressure change is converted into electrical signals using elastomers and pressure-sensitive elements. The controller processes and analyzes these signals in real time to judge the center of the output shaft.
Real-time monitoring and accurate judgment of the engine output shaft status is realized, errors and data inaccuracy caused by manual detection are avoided, and detection accuracy is ensured.
Smart Images
Figure CN222528546U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engines, in particular to an engine detection device. Background Art
[0002] As the core component of the power source of various mechanical equipment, the importance of the engine is beyond words. The engine mainly relies on the high-speed rotation of the output shaft to provide the power required by the mechanical equipment. The output shaft is generally cylindrical. When the output shaft rotates at high speed, its centrality often affects the stability of the equipment. The higher the centrality, the more stable the power output of the engine, and the smaller the vibration. However, during the production and processing of the output shaft, the cross-section may not be an ideal center of circle due to the accuracy or error of the processing equipment. It is necessary to use detection equipment to detect the centrality of the output shaft during rotation. At present, the diameter of the output shaft is generally measured directly by manual labor. The data measured by this method is inaccurate and does not meet the requirements of detection accuracy. Utility Model Content
[0003] The utility model aims to provide an engine detection device, which is used to avoid direct manual detection of the center of the output shaft, ensure the accuracy of the detection data and meet the accuracy requirements.
[0004] In order to solve the above technical problems, the utility model adopts the following solutions:
[0005] An engine detection device comprises a detection platform, on which a support seat adapted to the engine is arranged, and a detection assembly located on the side of the engine output shaft axis is provided on the detection platform, the detection assembly comprises a column, a detection rod, an elastic body, a pressure-sensitive element, a fixed cylinder and a controller, one end of the detection rod is slidably sleeved in the fixed cylinder, and the other end contacts the side wall of the output shaft, an installation cavity is provided inside the fixed cylinder, the elastomer and the pressure-sensitive element are installed in the installation cavity, one side of the elastomer is connected to one end of the detection rod, and the other side is connected to an extension rod, the end of the extension rod away from the elastomer contacts the pressure-sensitive element but does not press the pressure-sensitive element, the pressure-sensitive element is electrically connected to the controller, the upper end of the column is connected to the fixed cylinder, and the lower end is connected to the detection platform.
[0006] Due to the adoption of the above technical solution, the detection platform provides a stable working environment, so that all detection activities can be carried out on this platform. The support seat is adapted to the engine to ensure that the engine is stably placed during the detection process and the detection results will not be affected by shaking or displacement. The column serves as a supporting structure for the detection component and provides a stable installation position for the detection rod, elastomer, pressure-sensitive element, etc. The detection rod is directly in contact with the side wall of the engine's output shaft and can sense the dynamic changes of the output shaft in real time. The elastomer is located between the detection rod and the extension rod and plays a role in resetting and transmitting force. When the detection rod is compressed by the output shaft, the elastomer will deform and convert this deformation into a force on the extension rod. The pressure-sensitive element is used to detect the change in pressure applied to it by the extension rod and convert this change into an electrical signal output, which can be received and processed by the controller. The fixing tube provides a closed installation environment for the detection rod, elastomer, pressure-sensitive element, etc. to ensure that they can work normally. Without being disturbed by the outside world, the installation cavity provides enough space for the elastomer and the pressure-sensitive element, so that they can be installed and operated normally. The controller is connected to the pressure-sensitive element and can receive the electrical signal output by the pressure-sensitive element in real time. After receiving the electrical signal, the controller will process and analyze the electrical signal data to obtain accurate information about the centrality of the engine output shaft when it rotates. If the electrical signal data obtained by the controller within a period of time is basically unchanged or the change is within the design allowable range, it means that the squeezing force of the output shaft side wall on the detection rod is basically unchanged, indicating that the centrality of the output shaft when rotating is higher. If the electrical signal data changes greatly, it means that the squeezing force of the output shaft side against the detection rod is different, and the centrality of the output shaft when rotating is poor. In summary, the detection device realizes real-time monitoring and accurate judgment of the state of the engine output shaft through ingenious mechanical design and electronic control, avoids the problems of large errors and inaccurate data caused by manual detection, and the detection accuracy is guaranteed.
[0007] Optionally, the elastic body is an arc-shaped elastic sheet, which is recessed toward the output shaft, circumferentially fixedly connected to the inner wall of the mounting cavity, with the left side of the elastic sheet fixedly connected to the detection rod and the right side fixedly connected to the extension rod.
[0008] Optionally, a pressure plate is provided at the right end of the extension rod, and the pressure plate is in contact with the pressure-sensitive element.
[0009] Optionally, the controller is a computer, and the pressure-sensitive element is a strain gauge pressure sensor.
[0010] Optionally, the strain gauge pressure sensor is of diaphragm type and is directly adhered to the inner wall of the installation cavity.
[0011] Optionally, a roller is provided for rotation of the detection contact end with the output shaft.
[0012] Optionally, a sliding cavity adapted to the detection rod is provided in the fixing cylinder, and the sliding cavity is connected to the installation cavity.
[0013] Optionally, the cross-section of the sliding cavity is circular.
[0014] Optionally, the support seat and the detection platform are fixed by bolts, the engine and the top of the support seat are fixed by bolts, and an elastic rubber pad is provided between the support seat and the detection platform.
[0015] Optionally, a slider is provided on the bottom surface of the column, a slide groove is provided on the top surface of the detection platform, the slider slides in the slide groove, and a telescopic cylinder connected to the column is provided on the top surface of the detection platform.
[0016] The utility model has the beneficial effects:
[0017] 1. In the present invention, if the electrical signal data obtained by the controller within a period of time is basically unchanged or the change is within the design allowable range, it indicates that the squeezing force of the output shaft side wall on the detection rod is basically unchanged, which means that the centrality of the output shaft when rotating is relatively high. If the electrical signal data changes greatly, it indicates that the squeezing force of the output shaft side facing the detection rod is different, and the centrality of the output shaft when rotating is relatively poor. In summary, the detection device realizes real-time monitoring and accurate judgment of the state of the engine output shaft through ingenious mechanical design and electronic control, avoids the problems of large errors and inaccurate data caused by manual detection, and the detection accuracy is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the structure of the utility model;
[0019] Figure 2 A schematic diagram of the side structure of the detection component.
[0020] Figure numerals: 1-detection platform, 2-support seat, 3-engine, 4-output shaft, 5-roller, 6-detection rod, 7-fixing cylinder, 8-sliding cavity, 9-elastic body, 10-installation cavity, 11-controller, 12-pressure sensing element, 13-pressure plate, 14-extension rod, 15-slide groove, 16-slider, 17-telescopic cylinder, 18-column, 19-elastic rubber pad. DETAILED DESCRIPTION
[0021] The present invention will be further described in detail below in conjunction with the embodiments and drawings, but the implementation manner of the present invention is not limited thereto.
[0022] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inside", "outside", "front", "back", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.
[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "open", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example
[0024] An engine detection device includes a detection platform 1, on which a support base 2 adapted to an engine 3 is arranged. The detection platform 1 is provided with a detection component located on the side of the axis of an output shaft 4 of the engine 3, the detection component includes a column 18, a detection rod 6, an elastic body 9, a pressure-sensitive element 12, a fixed tube 7 and a controller 11. One end of the detection rod 6 is slidably sleeved in the fixed tube 7, and the other end contacts the side wall of the output shaft 4. An installation cavity 10 is provided inside the fixed tube 7, and the elastic body 9 and the pressure-sensitive element 12 are installed in the installation cavity 10. One side of the elastic body 9 is connected to one end of the detection rod 6, and the other side is connected to an extension rod 14. The end of the extension rod 14 away from the elastic body 9 contacts the pressure-sensitive element 12 but does not press the pressure-sensitive element 12. The pressure-sensitive element 12 is electrically connected to the controller 11. The upper end of the column 18 is connected to the fixed tube 7, and the lower end is connected to the detection platform 1.
[0025] In this embodiment, Figure 1 and Figure 2As shown, the detection platform 1 provides a stable working environment so that all detection activities can be carried out on this platform. The support seat 2 is adapted to the engine 3 to ensure that the engine 3 is stably placed during the detection process and the detection result will not be affected by shaking or displacement. The column 18 serves as a supporting structure of the detection component and provides a stable installation position for the detection rod 6, the elastic body 9, the pressure-sensitive element 12, etc. The detection rod 6 is directly in contact with the side wall of the output shaft 4 of the engine 3 and can sense the dynamic changes of the output shaft 4 in real time. The elastic body 9 is located between the detection rod 6 and the extension rod 14 and plays a role in resetting and transmitting force. When the detection rod 6 is compressed by the output shaft 4, the elastic body 9 will deform and convert this deformation into a force on the extension rod 14. The pressure-sensitive element 12 is used to detect the change in pressure applied to it by the extension rod 14 and convert this change into an electrical signal output. This electrical signal can be received and processed by the controller 11. The fixed tube 7 provides a closed installation environment for the detection rod 6, the elastic body 9, the pressure-sensitive element 12, etc. to ensure that they can work normally. The installation cavity 10 provides enough space for the elastic body 9 and the pressure-sensitive element 12 to be installed and operated normally without being disturbed by the outside world. The controller 11 is connected to the pressure-sensitive element 12 and can receive the electrical signal output by the pressure-sensitive element 12 in real time. After receiving the electrical signal, the controller 11 will process and analyze the electrical signal data, so as to obtain accurate information about the centrality of the output shaft 4 of the engine 3 when it rotates. If the electrical signal data obtained by the controller 11 within a period of time is basically unchanged or the change is within the design allowable range, it indicates that the squeezing force of the side wall of the output shaft 4 on the detection rod 6 is basically unchanged, indicating that the centrality of the output shaft 4 when it rotates is relatively high. If the electrical signal data changes greatly, it indicates that the squeezing force of the side of the output shaft 4 against the detection rod 6 is different, and the centrality of the output shaft 4 when it rotates is relatively poor. In summary, the detection device realizes real-time monitoring and accurate judgment of the state of the output shaft 4 of the engine 3 through ingenious mechanical design and electronic control, avoids the problem of large errors and inaccurate data caused by manual detection, and the detection accuracy is guaranteed.
[0026] It should be noted that before the controller 11 receives the electrical signal data, it can be subjected to noise removal and filtering processing to ensure the quality and accuracy of the data. After receiving a large amount of electrical signal data, the controller 11 can intuitively observe the data change range through visualization software, such as Excel, Tableau or specialized data analysis software, so that the inspection personnel can more clearly judge whether the centrality of the output shaft 4 meets the design value.
[0027] Optionally, the elastic body 9 is an arc-shaped elastic sheet, which is recessed toward the output shaft 4 , and is circumferentially fixedly connected to the inner wall of the mounting cavity 10 , and the left side of the elastic sheet is fixedly connected to the detection rod 6 , and the right side is fixedly connected to the extension rod 14 .
[0028] Specifically, Figure 1 As shown, the arc-shaped elastic sheet is recessed toward the output shaft 4. This shape enables the elastic sheet to better adapt to the movement trajectory of the detection rod 6 when it is pressed by the output shaft 4. When the detection rod 6 contacts the output shaft 4 and is pressed, the elastic sheet can bend smoothly to reduce friction and resistance, thereby improving the sensitivity and accuracy of the detection device. The elastic sheet is fixedly connected to the inner wall of the mounting cavity 10 in the circumferential direction. This fixing method ensures that the elastic sheet can remain stable when it is under pressure and will not shift or shake, which helps to maintain stable contact between the detection rod 6 and the output shaft 4 and improve the reliability of the detection result. The left side of the elastic sheet is connected to the detection rod 6. Fixed connection, the right side is fixedly connected to the extension rod 14. This design allows the elastic sheet to effectively transfer the force to the extension rod 14 when the detection rod 6 is subjected to pressure. The extension rod 14 then compresses the pressure-sensitive element 12 to generate an electrical signal output. This force transmission mechanism ensures that the detection device can accurately convert the state of the output shaft 4 into an electrical signal for subsequent processing and analysis by the controller 11. If the centrality of the output shaft 4 is low, the squeezing of the detection rod 6 when the output shaft 4 rotates will not be continuous. When the side wall of the output shaft 4 does not squeeze the detection rod 6, the elastic sheet will reset, so that the detection rod 6 returns to its original position.
[0029] Optionally, a pressure plate 13 is provided at the right end of the extension rod 14 , and the pressure plate 13 is in contact with the pressure-sensitive element 12 .
[0030] Specifically, Figure 1 As shown, the contact area between the pressure plate 13 and the pressure-sensitive element 12 is larger than the contact area of the extension rod 14 itself, which can disperse the pressure and reduce the pressure per unit area, thereby protecting the pressure-sensitive element 12 and preventing it from being damaged due to excessive pressure. The design of the pressure plate 13 can increase the contact stability between the extension rod 14 and the pressure-sensitive element 12 and reduce false touches or signal fluctuations caused by vibrations or small displacements, which helps to ensure the accuracy and stability of the detection results. By adjusting the shape, size or material of the pressure plate 13, the pressure of the extension rod 14 on the pressure-sensitive element 12 can be further fine-tuned. This adjustment can be made according to specific detection requirements, making the device more flexible and adaptable.
[0031] Optionally, the controller 11 is a computer, and the pressure-sensitive element 12 is a strain gauge pressure sensor.
[0032] Optionally, the strain gauge pressure sensor is of diaphragm type and is directly adhered to the inner wall of the installation cavity 10 .
[0033] Optionally, a roller 5 is provided at the contact end of the detection and output shaft 4 for rotation.
[0034] Specifically, Figure 1 and Figure 2As shown, the design of the roller 5 allows the detection rod 6 to contact the output shaft 4 in a rolling friction manner rather than a sliding friction. The resistance of rolling friction is much smaller than that of sliding friction, which can significantly reduce the friction generated during the detection process, thereby improving the accuracy and sensitivity of the detection. Since the friction is reduced, the roller 5 also plays a role in protecting the output shaft 4. During long-term or high-frequency detection processes, sliding friction may cause wear on the surface of the output shaft 4, and the design of the roller 5 can reduce such wear and extend the service life of the output shaft 4. The roller 5 can ensure smooth contact between the detection rod 6 and the output shaft 4. Regardless of whether the output shaft 4 is rotating or stationary, the roller 5 can maintain stable contact with the surface of the output shaft 4, thereby ensuring the continuity and stability of the detection signal.
[0035] Optionally, a sliding cavity 8 adapted to the detection rod 6 is provided in the fixing tube 7 , and the sliding cavity 8 is connected to the installation cavity 10 .
[0036] Optionally, the cross section of the sliding cavity 8 is circular.
[0037] Optionally, the support base 2 and the detection platform 1 are fixed by bolts, the engine 3 and the top of the support base 2 are fixed by bolts, and an elastic rubber pad 19 is provided between the support base 2 and the detection platform 1.
[0038] Specifically, the support base 2 and the detection platform 1 are fixed by bolts. This fixing method ensures the stability and reliability of the support base 2, so that the engine 3 can maintain a fixed position during the detection process to prevent the detection result from being affected by shaking or movement. At the same time, the bolt connection also facilitates the disassembly and replacement of the support base 2 to meet the detection requirements of engines 3 of different models or specifications.
[0039] The engine 3 and the top of the support base 2 are also fixed by bolts, ensuring the stability and safety of the engine 3 during the detection process. The bolt connection can provide sufficient supporting force to prevent the engine 3 from moving or tilting during the detection process. At the same time, the tightness of the bolt connection can also reduce the vibration and noise between the engine 3 and the support base 2, thereby improving the detection accuracy and working environment.
[0040] like Figure 1 As shown, an elastic rubber pad 19 is arranged between the support seat 2 and the detection platform 1. The elastic rubber pad 19 has good elasticity and buffering properties, and can effectively absorb and disperse the vibration and impact force between the engine 3 and the support seat 2, which can not only protect the engine 3 and the support seat 2 from damage, but also reduce noise and interference during the detection process, and improve the accuracy and reliability of the detection results.
[0041] In addition, the elastic rubber pad 19 can also play the role of vibration isolation and vibration reduction, reducing the impact of external vibration on the detection results. During the detection process of the engine 3, the external vibration may interfere with the stability and accuracy of the detection signal. The vibration isolation and vibration reduction effect of the elastic rubber pad 19 can effectively reduce this interference and improve the anti-interference ability of the detection device. In summary, the support seat 2 and the detection platform 1 are fixed by bolts, the engine 3 is fixed to the top of the support seat 2 by bolts, and the elastic rubber pad 19 is set between the support seat 2 and the detection platform 1. Together, they constitute a stable, reliable and efficient engine 3 detection device. This design can ensure the stability and safety of the engine 3 during the detection process, improve the accuracy and reliability of the detection results, and provide strong technical support for the production of the engine 3.
[0042] Optionally, a slider 16 is provided on the bottom surface of the column 18 , a slide groove 15 is provided on the top surface of the detection platform 1 , the slider 16 is slidably arranged in the slide groove 15 , and a telescopic cylinder 17 connected to the column 18 is provided on the top surface of the detection platform 1 .
[0043] Specifically, Figure 2 As shown, a slider 16 is provided on the bottom surface of the column 18, and a slide groove 15 is provided on the top surface of the detection platform 1. This design allows the column 18 to slide horizontally on the detection platform 1. The cooperation between the slider 16 and the slide groove 15 makes the movement of the column 18 more stable and smooth, reduces friction and resistance, and improves the movement accuracy and stability of the entire detection device. The telescopic cylinder 17 can drive the column 18 to move linearly on the detection platform 1, so that the detection rod 6 can detect the center of the circle at multiple positions on the side of the output shaft 4, thereby improving the comprehensiveness of the detection.
[0044] The above is only a preferred embodiment of the utility model and does not limit the utility model in any form. According to the technical essence of the utility model, within the spirit and principles of the utility model, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the utility model.
Claims
1. An engine testing device, comprising a testing platform (1), characterized in that: The detection platform (1) is provided with a support seat (2) adapted to the engine (3). The detection platform (1) is provided with a detection component located on the side of the axis of the output shaft (4) of the engine (3). The detection component comprises a column (18), a detection rod (6), an elastic body (9), a pressure-sensitive element (12), a fixed cylinder (7) and a controller (11). One end of the detection rod (6) is slidably sleeved in the fixed cylinder (7), and the other end is in contact with the side wall of the output shaft (4). The fixed cylinder (7) is provided with a mounting hole. The mounting cavity (10) is provided with an elastic body (9) and a pressure-sensitive element (12) installed in the mounting cavity (10). One side of the elastic body (9) is connected to one end of a detection rod (6), and the other side is connected to an extension rod (14). The end of the extension rod (14) away from the elastic body (9) contacts the pressure-sensitive element (12) but does not press the pressure-sensitive element (12). The pressure-sensitive element (12) is electrically connected to a controller (11). The upper end of the column (18) is connected to a fixed tube (7), and the lower end is connected to a detection platform (1).
2. An engine detection device according to claim 1, characterized in that: The elastic body (9) is an arc-shaped elastic sheet, which is recessed in the direction of the output shaft (4), and is fixedly connected to the inner wall of the mounting cavity (10) in the circumferential direction. The left side of the elastic sheet is fixedly connected to the detection rod (6), and the right side is fixedly connected to the extension rod (14).
3. An engine detection device according to claim 2, characterized in that: A pressure plate (13) is provided at the right end of the extension rod (14), and the pressure plate (13) is in contact with the pressure-sensitive element (12).
4. An engine detection device according to claim 1, characterized in that: The controller (11) is a computer, and the pressure-sensitive element (12) is a strain-type pressure sensor.
5. An engine detection device according to claim 4, characterized in that: The strain gauge pressure sensor is of diaphragm type and is directly adhered to the inner wall of the installation cavity (10).
6. An engine detection device according to claim 1, characterized in that: The contact end of the detection and output shaft (4) is rotatably provided with a roller (5).
7. An engine detection device according to claim 1, characterized in that: A sliding cavity (8) adapted to the detection rod (6) is provided in the fixing cylinder (7), and the sliding cavity (8) is connected to the installation cavity (10).
8. An engine detection device according to claim 7, characterized in that: The cross section of the sliding cavity (8) is circular.
9. An engine detection device according to claim 1, characterized in that: The support seat (2) and the detection platform (1) are fixed by bolts, the engine (3) and the top of the support seat (2) are fixed by bolts, and an elastic rubber pad (19) is provided between the support seat (2) and the detection platform (1).
10. An engine detection device according to claim 1, characterized in that: The bottom surface of the column (18) is provided with a slide block (16), the top surface of the detection platform (1) is provided with a slide groove (15), the slide block (16) is slidably arranged in the slide groove (15), and the top surface of the detection platform (1) is provided with a telescopic cylinder (17) connected to the column (18).