Detection equipment and detection method for engine turnover test

Abstract

The invention discloses detection equipment and a detection method for an engine turnover test. The detection equipment comprises a support; the positioning mechanism is arranged at the bottom of the support and comprises a positioning seat arranged on the support in a lifting mode and a first driving mechanism used for driving the positioning seat to ascend and descend, and the positioning seat is used for positioning the bottom of the engine; the turnover mechanism is arranged at the top of the support and comprises a base arranged on the support in a lifting mode and a clamping component arranged on the base and used for clamping the two sides of the engine, and a turnover component used for driving the clamping component is arranged on the clamping component. According to the detection equipment for the engine overturning test, the power wheel is matched with the guide groove, so that stable lifting of the positioning seat is realized; the pin positioning structure ensures accurate positioning of the bottom of the engine, and meets test requirements of engines with different weights. The distance between the clamping arms can be adjusted, and the clamping arms are suitable for engines of different sizes and shapes.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of detection equipment, in particular to a detection equipment and method for engine rollover test. BACKGROUND

[0002] In the field of engine research and development and detection, rollover test is a key link to verify the performance and durability of the engine. In the prior art, the positioning and rollover process of the engine rollover test has the following defects: the traditional lifting device mostly uses simple hydraulic or manual adjustment, and the lifting process is prone to shaking, and the bearing capacity is limited, which is difficult to adapt to the precise positioning needs of large weight engines. Manual or semi-automatic rollover mode relies on manual operation, which is low in efficiency and has safety hazards; the clamping device lacks adaptive design and is difficult to adapt to engines of different sizes, resulting in long test preparation time. The rollover angle control mostly relies on experience judgment, and it is difficult to achieve accurate adjustment, which affects the accuracy of test data. Oil splashing or parts falling off during the test process may cause environmental pollution or personal injury, and the prior art lacks effective protection measures. SUMMARY

[0003] In order to solve the technical problems existing in the prior art, the present application provides a detection equipment and method for engine rollover test.

[0004] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: a detection equipment for engine rollover test, comprising: a support; a positioning mechanism arranged at the bottom of the support, the positioning mechanism comprising a positioning seat arranged on the support in a lifting manner and a first driving mechanism for driving the positioning seat to lift, the positioning seat being used for positioning the bottom of the engine; a rollover mechanism arranged at the top of the support, the rollover mechanism comprising a base arranged on the support in a lifting manner and a clamping component arranged on the base for clamping both sides of the engine, the clamping component being provided with a rollover component for driving the clamping component.

[0005] In some embodiments of the application, the first driving mechanism comprises a lifting seat, a first telescopic rod and a bearing seat, the lifting seat is arranged on the support in a lifting manner, one end of the first telescopic rod is hinged to the support, the other end of the first telescopic rod is hinged to the bearing seat, the bearing seat is hinged to the bottom of the support, the bearing seat is provided with power wheels on both sides, the inner walls of the lifting seat on both sides are provided with guide grooves for accommodating the sliding of the power wheels, the power wheels can extend into the guide grooves, and the power wheels can reciprocate along the guide grooves.

[0006] In some embodiments of the application, the positioning seat is provided with a pin for positioning the bottom of the engine, the pin is located at the four corners of the positioning seat.

[0007] In some embodiments of the application, a sliding groove is formed in the lifting seat, a sliding rail is arranged on the support, the sliding rail and the sliding groove are matched, and the lifting frame can reciprocate along the installation direction of the sliding rail.

[0008] In some embodiments of the application, the clamping component comprises two clamping arms symmetrically arranged on the base, and a second telescopic rod, both clamping arms are slidingly arranged on the base, and the telescopic rod is connected to the two clamping arms respectively.

[0009] In some embodiments of the application, a clamping claw is rotatably arranged on any clamping arm, and the clamping claw has a anti-disengagement column adapted to the outer wall of the engine.

[0010] In some embodiments of the application, the turnover component comprises a driving motor and a speed reducer, the speed reducer is arranged on the clamping arm, and the driving motor is arranged on the speed reducer.

[0011] In some embodiments of the application, a splash-proof shell is arranged on the support, and the splash-proof shell is provided with an observation window.

[0012] In some embodiments of the application, a control panel for controlling the turnover mechanism and the positioning mechanism is arranged on the splash-proof shell.

[0013] The application also provides a detection method for engine turnover test, comprising: S1: The four corner pins of the positioning seat are inserted into the positioning holes at the bottom of the engine, the first driving mechanism drives the power wheels of the bearing seat to move downward along the guide groove, and the lifting seat is lowered along the slide rail to complete the initial positioning; S2: The base is lowered to the top of the engine, the second telescopic rod drives the two clamping arms to slide towards each other, and the clamping claw is mechanically limited by the anti-disengagement column and the reinforcing rib / groove of the engine side wall; S3: The driving motor drives the clamping component through the speed reducer to perform: S301: 180° turnover to test the sealing performance; S302: 90° turnover to detect the joint surface; S303: 360° continuous turnover to verify the fatigue resistance of the pipeline; S4: When the leakage exceeds the standard, the control panel controls the motor to stop and the base to be quickly lifted in sequence; S5: After the clamping is released, the positioning mechanism lifts the engine to the carrying height, and generates a detection report containing the turnover number, leakage amount and other parameters.

[0014] Beneficial effects: 1. This invention provides a testing device for engine rollover testing. The device achieves smooth lifting and lowering of the positioning seat through the cooperation of the drive wheel and guide groove; the pin positioning structure ensures precise positioning of the engine bottom, adapting to the testing needs of engines of different weights. The clamping arm spacing is adjustable to accommodate engines of different sizes and shapes; the anti-slip column design prevents engine slippage and improves clamping stability. The drive motor and reducer work together to achieve precise control of the rollover angle, improving the accuracy of test data. A splash-proof shell prevents oil splashing and component detachment; an observation window facilitates real-time monitoring; and the control panel enables centralized control, improving operational safety and convenience. The control panel integrates equipment control functions, simplifying the operation process; the device has a high level of automation, improving testing efficiency.

[0015] 2. This invention provides a detection method for engine rollover testing, which features a multi-stage rollover design to simultaneously verify sealing performance, joint surface reliability, and pipeline fatigue resistance; it also provides triple protection of automatic emergency stop, lifting, and sealing when leakage exceeds the limit, preventing liquid diffusion and equipment damage. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural illustration of an embodiment of this application. Figure 1 ; Figure 2 This is a structural illustration of an embodiment of this application. Figure 2 ; Figure 3 This is a schematic diagram of the flipping mechanism according to an embodiment of this application; Figure 4 This is a schematic diagram of the positioning mechanism according to an embodiment of this application; Figure 5 This is a schematic diagram of the internal structure of the positioning mechanism in an embodiment of this application.

[0018] In the diagram: 1-Bracket; 2-Positioning seat; 3-Base; 4-Lifting seat; 5-First telescopic rod; 6-Bearing seat; 7-Bearing seat; 8-Guide groove; 9-Pin; 10-Slide rail; 11-Clamping arm; 12-Second telescopic rod; 13-Clamping claw; 14-Anti-detachment column; 15-Drive motor; 16-Reducer; 17-Splashproof shell; 18-Observation window; 19-Control panel. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this application, it should be noted that the use of terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. These terms are used solely for the convenience of describing this application and for 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. Therefore, they should not be construed as limitations on this application. Furthermore, the use of terms such as "first" and "second" in the description of this application is only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this application does not imply that the component is required to be absolutely horizontal or suspended, but rather that it may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] Example 1 Please refer to Figures 1-5 This embodiment provides a testing device for engine rollover testing, including: a support 1, which serves as the basic frame of the device and is welded from high-strength alloy steel. A wide base 3 is designed at the bottom to distribute the load. Vertical guide structures are provided at the top and bottom of the support 1 to provide precise guidance for the lifting and lowering of the positioning and rolling mechanisms. A wiring channel is reserved in the middle of the support 1 to conceal the cables and air pipes of the first drive mechanism and the rolling components. The high-strength material and the wide base 3 design ensure that the device does not deform when bearing a heavy engine, guaranteeing test safety. The vertical guide structure eliminates swaying errors during lifting and lowering; the straightness error between the positioning seat 2 and the base 3 during lifting and lowering is ≤0.2mm. The concealed wiring channel avoids cable tangling, reduces the failure rate, and improves the cleanliness of the device.

[0026] A positioning mechanism is also provided at the bottom of the bracket 1. The positioning mechanism includes a positioning seat 2 that is lifted and lowered on the bracket 1 and a first drive mechanism for driving the positioning seat 2 to lift and lower. The positioning seat 2 is used to position the bottom of the engine. In this embodiment, the positioning seat 2 is fixed to the top of the lifting seat 4 by bolts, and its surface is machined with four pin 9 mounting holes. The pins 9 are made of alloy steel with a hardness of HRC50 or higher. When the engine is placed, the pre-set positioning holes at the bottom align with the pins 9, and the pins 9 are inserted by gravity and slight downward pressure, completing the positioning. The hard fit between the pins 9 and the engine positioning holes eliminates the need for manual adjustment, reducing the positioning time to within 5 seconds. The positional tolerance of the pins 9 is controlled within ±0.1mm, ensuring the consistency of the benchmark in multiple tests, making it suitable for precision performance testing. The top of the pins 9 is designed with a chamfer to avoid scratching the coating on the bottom of the engine.

[0027] Furthermore, the first drive mechanism achieves the vertical lifting function of the positioning seat 2 through the coordinated action of mechanical transmission and the guide structure. By replacing traditional sliding friction with rolling friction between the drive wheel and the guide groove 8, the operating resistance is significantly reduced, ensuring a smooth and uninterrupted lifting process. The curved design of the guide groove 8 eliminates horizontal force components, ensuring that the lifting seat 4 always maintains vertical movement and preventing the positioning seat 2 from tilting.

[0028] The flipping mechanism is located on the top of the bracket 1. The flipping mechanism includes a base 3 that is lifted and lowered on the bracket 1 and clamping components on the base 3 for clamping both sides of the engine. The clamping components are provided with flipping components for driving the clamping components.

[0029] In this embodiment, the aforementioned flipping mechanism is used to perform a flipping test on the clamped engine to obtain the engine's sealing performance in various postures. The aforementioned base 3 is used to install the clamping component and the flipping component, which facilitates the simulation of various postures that the engine may encounter after installation, as well as various flipping speeds and angles of the engine on the vehicle body, thereby improving the effectiveness of data acquisition.

[0030] Please refer to Figures 3-5 In some embodiments of this example, the first driving mechanism includes a lifting seat 4, a first telescopic rod 5, and a load-bearing seat 6. The lifting seat 4 is elliptically mounted on the support 1. One end of the first telescopic rod 5 is hinged to the support 1, and the other end of the first telescopic rod 5 is hinged to the load-bearing seat 6. The load-bearing seat 6 is hinged to the bottom of the support 1. Power wheels are provided on both sides of the load-bearing seat 6. Guide grooves 8 for accommodating the sliding of the power wheels are provided on the inner walls of both sides of the lifting seat 4. The power wheels can extend into the guide grooves 8 and can reciprocate along the guide grooves 8.

[0031] In this embodiment, guide grooves 8 are machined on both inner walls, with a gradient curve at the bottom of the grooves to control the movement trajectory of the power wheels. Connected to the bottom of the bracket 1 via hinges, the power wheels on both sides are made of high-wear-resistant nylon material, with annular grooves machined on their surfaces to match the guide grooves 8. The aforementioned first telescopic rod 5 is an electric push rod, with one end hinged to the middle of the bracket 1 and the other end hinged to the middle of the support seat 6. When the telescopic rod extends or retracts, the support seat 6 rotates around the bottom hinge, and the power wheels roll along the guide grooves 8, pushing the lifting seat 4 to rise and fall vertically. The rolling friction between the power wheels and the guide grooves 8 replaces traditional sliding friction, reducing the friction coefficient by 70% and eliminating vibration during the lifting process. The support seat 6 distributes the load through three-point support, with a maximum load capacity of 800 kg, suitable for large engines. The gradient curve design of the guide grooves 8 allows the lifting seat 4 to self-lock at any height, avoiding the risk of the positioning seat 2 falling due to power failure.

[0032] Please refer to Figure 4 In some embodiments of this example, the positioning seat 2 is provided with pins 9 for positioning the bottom of the engine, and the pins 9 are located at the four corners of the positioning seat 2.

[0033] In this embodiment, four pins 9 are symmetrically arranged at the four corners of the surface of the positioning seat 2. The pins 9 are made of high-strength alloy steel and have undergone heat treatment to improve wear resistance. The bottom of the pin 9 is pressed into the mounting hole of the positioning seat 2 through an interference fit, and the top is machined with a guide chamfer to facilitate the alignment and insertion of the engine positioning hole. When the engine is placed, the four pre-set positioning holes at the bottom correspond one-to-one with the pins 9. The pins 9 are inserted by gravity and slight downward pressure, completing the precise positioning. The hard fit between the pins 9 and the engine positioning hole eliminates the need for manual adjustment, shortening the positioning time to within 5 seconds, significantly improving the efficiency of test preparation. The symmetrical layout at the four corners ensures that the bottom of the engine is subjected to uniform force, avoiding tilting or displacement caused by single-point positioning.

[0034] It should be noted that the positioning hole at the bottom of the engine is precision-machined. When the engine is placed, pin 9 slides into the positioning hole through a guide chamfer, and the contact surface between the two produces a slight elastic deformation, forming an interference fit. The positioning seat 2 is adjusted in height by the first drive mechanism, so that the bottom of the engine is completely fitted with the positioning seat 2, maximizing the engagement force between pin 9 and the positioning hole, eliminating all degrees of freedom. The interference fit between pin 9 and the positioning hole generates a radial clamping force, ensuring the engine remains stable even during high-vibration rollover tests. The four-point positioning creates spatial constraints, eliminating the engine's translational and rotational degrees of freedom in the horizontal plane, ensuring no relative movement between the engine and the equipment during rollover. The clearance fit design allows for slight dimensional changes in pin 9 and the positioning hole due to temperature variations, avoiding jamming or positioning failure caused by thermal stress.

[0035] Please refer to Figure 4 and Figure 5 In some embodiments of this example, the lifting seat 4 is provided with a sliding groove, and the bracket 1 is provided with a slide rail 10. The slide rail 10 and the sliding groove are adapted to each other, and the lifting frame can reciprocate along the installation direction of the slide rail 10.

[0036] In this embodiment, the aforementioned grooves are formed on the inner walls of both sides of the lifting seat 4, with a dovetail-shaped cross-section. The depth and width are precisely calculated to ensure a clearance fit with the slide rail 10. The surface of the grooves is hardened to resist wear caused by long-term sliding. The slide rail 10 is fixed to both sides of the bracket 1 and is machined using high-precision wire cutting technology, with a surface roughness Ra≤0.8μm. The cross-sectional shape of the slide rail 10 matches the groove, and an oil reservoir (not shown in the figure) is machined on the top to store grease and reduce friction. The clearance fit between the groove and the slide rail 10 eliminates horizontal freedom of movement, ensuring that the lifting seat 4 can only move in the vertical direction. The dovetail-shaped groove design prevents the lifting seat 4 from detaching from the slide rail 10, improving structural safety.

[0037] Specifically, when the first telescopic rod 5 drives the support seat 6 to rotate, the power wheel rolls along the guide groove 8 on the inner wall of the lifting seat 4, generating a horizontal component force. At this time, the cooperation between the slide groove and the slide rail 10 converts the horizontal component force into a vertical constraint force, forcing the lifting seat 4 to rise and fall along the slide rail 10. When the support seat 6 rotates, the power wheel rolls in the guide groove 8, pushing the lifting seat 4 to produce a horizontal displacement tendency. The sliding pair between the slide groove and the slide rail 10 restricts the horizontal displacement tendency to vertical movement, ensuring that the lifting seat 4 can only rise and fall along the slide rail 10. The weight of the lifting seat 4 and the load of the engine are evenly distributed to the bracket 1 through the contact surface between the slide groove and the slide rail 10, avoiding local stress concentration.

[0038] Please refer to Figure 3In some embodiments of this example, the clamping component includes two clamping arms 11 symmetrically arranged on the base 3 and a second telescopic rod 12. Both clamping arms 11 are slidably arranged on the base 3, and the telescopic rod is connected to the two clamping arms 11 respectively.

[0039] In this embodiment, the clamping arms 11 are made of high-strength aluminum alloy, and their surfaces are anodized to improve corrosion resistance. The two clamping arms 11 engage with T-shaped guide rails on the base 3 via T-shaped sliders to achieve low-friction sliding. V-grooves are machined on the inner side of the clamping arms 11, and pressure sensors (not shown in the figure) are installed at the bottom of the grooves to monitor the clamping force in real time. The ends of the clamping arms 11 are connected to clamping jaws 13 via rotary bearings, allowing the clamping jaws 13 to be manually adjusted within a ±15° range and secured with lock nuts. The manually adjustable clamping jaws 13 adapt to the non-parallel surfaces of the engine's outer wall, improving compatibility. The pressure sensors provide real-time feedback of the clamping force to the control panel 19. When the clamping force exceeds a safety threshold, the machine automatically stops and an alarm sounds to prevent damage to the engine surface.

[0040] Furthermore, the aforementioned second telescopic rod 12 employs a double-rod hydraulic cylinder. The cylinder body is fixed to the middle of the base 3, and the piston rods at both ends are hinged to the two clamping arms 11 via fisheye joints. The hydraulic cylinder controls the direction of the oil circuit through a solenoid valve to achieve the telescopic action. When the solenoid valve is energized, hydraulic oil enters the rodless chamber, the piston rod extends, and drives the clamping arms 11 to move in opposite directions; conversely, hydraulic oil enters the rod chamber, the piston rod retracts, and the clamping arms 11 move in opposite directions. The telescopic rod has a built-in displacement sensor that provides real-time feedback on the distance between the clamping arms 11 to the control panel 19.

[0041] Please refer to Figure 3 In some embodiments of this example, any of the clamping arms 11 is rotatably provided with clamping claws 13, and the clamping claws 13 have anti-detachment posts 14 adapted to the outer walls on both sides of the engine.

[0042] In this embodiment, the clamping jaw 13 is connected to the end of the clamping arm 11 via a rotary bearing. The bearing is a deep groove ball bearing, which can withstand combined radial and axial loads. The clamping jaw 13 can be manually rotated ±15° around the bearing centerline, and the angle is fixed by a locking nut. A spring washer is provided at the bottom of the locking nut to prevent loosening due to vibration. The clamping jaw 13 can be manually adjusted to adapt to the non-parallel surface of the engine outer wall, improving compatibility. The low friction characteristics of the deep groove ball bearing make the angle adjustment smooth and without jamming, and the operation can be completed with one hand.

[0043] Please refer to Figure 3 In some embodiments of this example, the aforementioned flipping component includes a drive motor 15 and a reducer 16, with the reducer 16 mounted on the clamping arm 11 and the drive motor 15 mounted on the reducer 16.

[0044] In this embodiment, the aforementioned reducer 16 is a planetary gear reducer 16, model PLF80, composed of a sun gear, planet gears, and an internal gear ring, with a reduction ratio i=100:1 and a rated output torque of 5000 N·m. The reducer 16 is fixed to the outside of the clamping arm 11 via a flange connection, with the input end facing the outside of the clamping arm 11, and the output end connected to the rotating shaft of the clamping jaw 13 via a coupling. The reducer 16 is filled with grease, and leakage is prevented by an oil seal. The planetary gear structure converts the high-speed rotation of the drive motor 15 into a low-speed, high-torque output, adapting to the slow-speed, high-torque requirements of engine rollover tests.

[0045] The drive motor 15 is a three-phase asynchronous motor, model YE2-132S-4, with a rated power of 5.5kW, a rated speed of 1440rpm, and a protection rating of IP55. The motor is fixed to the input end of the reducer 16 via a flange connection, and the output shaft is connected to the sun gear of the reducer 16 via a flexible coupling. The motor has a built-in temperature sensor to monitor the winding temperature in real time, which is displayed on the control panel 19.

[0046] Please refer to Figure 1 and Figure 2 In some embodiments of this example, the bracket 1 is covered with a splash-proof shell 17, and the splash-proof shell 17 has an observation window 18.

[0047] In this embodiment, the splash shield 17 is integrally injection molded from high-strength polycarbonate material, with a thickness of 5mm and a hardened surface. The shell is bolted to the top of the bracket 1, allowing for quick opening and closing. Sound-absorbing cotton is pasted on the inner wall of the splash shield 17, and a flow guide channel is designed at the bottom, connecting to an external waste liquid collection tank. The observation window 18 uses double-layer explosion-proof glass with a PVB explosion-proof film sandwiched in between, fixed to the pre-drilled hole in the splash shield 17 with silicone sealant. The glass surface is coated with an anti-fog coating. When the flipping mechanism drives the engine to flip, the splash shield 17 prevents oil and debris from splashing. The combined design of the splash shield 17 and the observation window 18 covers the entire process of test preparation, execution, and completion, eliminating risks such as injury from splashes, oil contamination, and excessive noise.

[0048] Please refer to Figure 1 In some embodiments of this example, the splash-proof shell 17 is provided with a control panel 19 for controlling the flipping mechanism and the positioning mechanism.

[0049] In this embodiment, the control panel 19 uses an industrial-grade touchscreen covered with tempered glass and communicates with the drivers of the positioning and flipping mechanisms via an RS485 bus. The panel integrates physical buttons and status indicator lights, and a USB port and power switch are located at the bottom. The control panel 19 is fixed to the outside of the splash-proof shell 17 by a bracket 1, with an operating height of 1.2m, conforming to ergonomics. The combination of the touchscreen and physical buttons allows operators to control the equipment by touch or mechanical pressing, adapting to different operating habits. The status indicator lights provide intuitive feedback on the equipment status, reducing visual fatigue.

[0050] The positioning mechanism is controlled via a touchscreen "Positioning Adjustment" interface, which displays the current height of positioning seat 2 and the target height input boxes. After the operator inputs the target height, control panel 19 sends a command to the motor controller of the first drive mechanism via an RS485 bus, driving the lifting motor to adjust the height of positioning seat 2. During the height adjustment process, the encoder provides real-time feedback of the position of positioning seat 2 to control panel 19, forming a closed-loop control.

[0051] The flipping mechanism is controlled via a touchscreen "Flip Adjustment" interface, which displays the current flip angle, the target angle input box, and the flip speed adjustment slider. After the operator inputs the target angle and adjusts the speed, the control panel 19 sends commands to the inverter of the flipping component via an RS485 bus, driving the motor 15 to adjust the flip angle and speed. During angle adjustment, the encoder provides real-time feedback of the flip angle to the control panel 19, forming a closed-loop control.

[0052] Precise control and real-time monitoring ensure that test parameters strictly meet standard requirements, greatly enhancing the authenticity of test data.

[0053] Example 2 This embodiment provides a detection method for an engine rollover test, including: S1: The four corner pins 9 of the positioning seat 2 are inserted into the positioning holes at the bottom of the engine. The first drive mechanism drives the power wheel of the load-bearing seat 6 to descend along the guide groove 8, which in turn drives the lifting seat 4 to descend along the slide rail 10 to complete the initial positioning. S2: The base 3 descends to the top of the engine, the second telescopic rod 12 drives the two clamping arms 11 to slide towards each other, and the clamping claws 13 form a mechanical limit with the engine side wall reinforcing ribs / grooves through the anti-detachment column 14; S3: Drive motor 15 drives clamping component via reducer 16 to perform the following: S301: Maintain a tight seal during 180° rotation test; S302: 90° rotation inspection of mating surfaces; S303: 360° continuous rotation verification of pipeline fatigue resistance; S4: When leakage exceeds the standard, control panel 19 sequentially controls the emergency stop of the motor and the rapid lifting of base 3; S5: After the clamp is released, the positioning mechanism raises the engine to the transport height and automatically generates a test report containing parameters such as the number of times it has been flipped and the amount of leakage.

[0054] The system employs four corner pins (9) for insertion into engine bores, ensuring zero axial / radial offset during clamping and improving the accuracy of the testing baseline. It allows for high-precision flipping at 180° / 90° / 360° angles, utilizing a multi-stage flipping design to simultaneously verify sealing performance, joint surface reliability, and pipeline fatigue resistance. In case of excessive leakage, it features automatic emergency stop, lifting, and sealing triple protection to prevent liquid spread and equipment damage. The control panel (19) integrates parameter settings and anomaly handling, enabling a single clamping operation to complete the entire testing process and shortening the test cycle.

[0055] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A testing device for engine rollover testing, characterized in that, include: Support (1); The positioning mechanism is provided at the bottom of the bracket (1). The positioning mechanism includes a positioning seat (2) that is raised and lowered on the bracket (1) and a first driving mechanism for driving the positioning seat (2) to rise and fall. The positioning seat (2) is used to position the bottom of the engine. A flipping mechanism is provided on the top of the bracket (1). The flipping mechanism includes a base (3) that is lifted and lowered on the bracket (1) and a clamping component on the base (3) for clamping both sides of the engine. The clamping component is provided with a flipping component for driving the clamping component.

2. The testing equipment for engine rollover testing according to claim 1, characterized in that, The first driving mechanism includes a lifting seat (4), a first telescopic rod (5), and a load-bearing seat (6). The lifting seat (4) is raised and lowered on the bracket (1). One end of the first telescopic rod (5) is hinged to the bracket (1), and the other end of the first telescopic rod (5) is hinged to the load-bearing seat (6). The load-bearing seat (6) is hinged to the bottom of the bracket (1). Power wheels are provided on both sides of the load-bearing seat (6). Guide grooves (8) for accommodating the sliding of the power wheels are provided on the inner walls of both sides of the lifting seat (4). The power wheels can extend into the guide grooves (8) and can reciprocate along the guide grooves (8).

3. The testing equipment for engine rollover testing according to claim 2, characterized in that, The positioning seat (2) is provided with pins (9) for positioning the bottom of the engine, and the pins (9) are located at the four corners of the positioning seat (2).

4. The testing equipment for engine rollover testing according to claim 2, characterized in that, The lifting seat (4) is provided with a sliding groove, and the bracket (1) is provided with a slide rail (10). The slide rail (10) and the sliding groove are adapted to each other, and the lifting frame can reciprocate along the installation direction of the slide rail (10).

5. The testing equipment for engine rollover testing according to claim 1, characterized in that, The clamping component includes two clamping arms (11) symmetrically arranged on the base (3) and a second telescopic rod (12). Both clamping arms (11) are slidably arranged on the base (3), and the telescopic rod is connected to the two clamping arms (11) respectively.

6. The testing equipment for engine rollover testing according to claim 5, characterized in that, A clamping claw (13) is rotatably provided on any of the clamping arms (11), and the clamping claw (13) has anti-detachment posts (14) adapted to the outer walls on both sides of the engine.

7. The testing equipment for engine rollover testing according to claim 6, characterized in that, The flipping component includes a drive motor (15) and a reducer (16), the reducer (16) being mounted on the clamping arm (11), and the drive motor (15) being mounted on the reducer (16).

8. The testing equipment for engine rollover testing according to claim 1, characterized in that, The bracket (1) is covered with a splash-proof shell (17), and the splash-proof shell (17) has an observation window (18).

9. The testing equipment for engine rollover testing according to claim 8, characterized in that, The splash-proof shell (17) is provided with a control panel (19) for controlling the flipping mechanism and the positioning mechanism.

10. A detection method for an engine rollover test, implemented using the detection equipment described in any one of claims 1-9, characterized in that, include: S1: The four corner pins (9) of the positioning seat (2) are inserted into the positioning holes at the bottom of the engine. The first drive mechanism drives the load-bearing seat (6) power wheel to go down along the guide groove (8), and drives the lifting seat (4) to descend along the slide rail (10) to complete the initial positioning. S2: The base (3) descends to the top of the engine, the second telescopic rod (12) drives the two clamping arms (11) to slide towards each other, and the clamping claws (13) form a mechanical limit with the engine side wall reinforcing ribs / grooves through the anti-detachment column (14); S3: The drive motor (15) drives the clamping component via the reducer (16) to perform the following: S301: Maintain a tight seal during 180° rotation test; S302: 90° rotation inspection of mating surfaces; S303: 360° continuous rotation verification of pipeline fatigue resistance; S4: When leakage exceeds the standard, the control panel (19) sequentially controls the motor to stop and the base (3) to lift rapidly; S5: After the clamp is released, the positioning mechanism raises the engine to the transport height and automatically generates a test report containing parameters such as the number of times it has been flipped and the amount of leakage.

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