A motion analysis experiment system and experiment method of a catch type locker

Abstract

This application discloses a kinematic analysis experimental system and method for a hook-type locking device. The system includes a guide rail mounted on an experimental frame for driving a locking rod to move along a first direction. The hook-type locking device includes a support device and a locking hook hinged to the support device via a torsion spring. One end of the locking hook is provided with a locking hook shaft, and the path of the locking rod moving along the first direction is perpendicular to the rotation center line of the locking hook. A hydraulic drive system is fixedly installed on the support device, and the free end of the push rod of the hydraulic drive system is hinged with a locking hook, which is hinged to the support device. When the free end of the push rod retracts, it pulls one end of the locking hook to move in the direction of the push rod retraction, locking the locking rod that has moved to a preset position. Conversely, the locking hook unlocks the locking rod under the torque of the torsion spring. The system of this application has a simple structure and complete functions, and can meet the entire process of kinematic analysis of the hook-type locking device.

Description

Technical Field

[0001] This application relates to the field of antenna locking technology, and more specifically to a motion analysis experimental system and experimental method for a hook-type locking device. Background Technology

[0002] Hook-type locking mechanisms are used in the locking of large radar antennas due to their advantages such as large locking margin and high reliability. In the development of hook-type locking mechanisms, kinematic simulation analysis is commonly used to analyze the relative motion relationships of the components. However, due to factors such as errors generated during manufacturing and assembly, simulation methods often deviate from reality. Furthermore, simulation methods cannot accurately evaluate the kinematic friction characteristics and reliability of hook-type locking mechanisms. Therefore, this invention proposes a kinematic analysis experimental system and method for hook-type locking mechanisms, providing support for design and development, performance evaluation, and subsequent optimization. Summary of the Invention

[0003] The main purpose of this application is to provide a motion analysis experimental system and method for a hook-type locking device, aiming to solve the technical problems of small detection range and incomplete spatial coverage.

[0004] To achieve the above objectives, this application provides a motion analysis experimental system for a hook-type locking device, comprising: a locking rod with a locking rod shaft at one end; an experimental frame equipped with a mounting guide rail, the guide rail being detachably connected to the locking rod and used to drive the locking rod shaft of the locking rod to move along a first direction; a hook-type locking device, including a support device and a locking hook hinged to the support device via a torsion spring, one end of the locking hook having a locking hook shaft, the path of the locking rod moving along the first direction being perpendicular to and not intersecting the rotation center line of the locking hook; a hydraulic drive system fixedly mounted on the support device, the free end of the push rod of the hydraulic drive system being hinged to a locking hook, the locking hook being hinged to the support device; when locking the locking rod, the guide rail... The locking rod moves in the opposite direction to the first direction, causing the bottom of the locking rod to engage with the locking hook. The torsion spring tightens, and at the same time, the free end of the push rod retracts, pulling one end of the hook in the direction of the push rod's retraction. The groove in the middle of the hook pulls the locking hook axis to move in the direction of the push rod's extension, thereby locking the locking rod shaft, which has moved to the preset position, in order to unlock the locking rod. When unlocking the locking rod, as the free end of the push rod extends, the groove in the middle of the hook separates from the locking hook, and the locking hook returns to its original position under the torque of the torsion spring, thereby unlocking the locking rod shaft. By moving the position of the locking rod on a plane perpendicular to the first direction, the randomness of the folding antenna's falling position is simulated, so as to conduct random locking and unlocking experiments of the folding antenna.

[0005] Optionally, the experimental frame includes: a base plate, on one side of which are fixed two guide rail vertical beams with the same length direction as the first direction; a guide rail crossbeam, connected to the middle of the two guide rail vertical beams along a second direction to form an H-shaped support frame, wherein the second direction is perpendicular to the first direction; a guide rail, fixed to the free ends of the two guide rail vertical beams by a guide rail mounting plate, the guide rail being connected to a handwheel via a screw and nut pair; and a connecting plate, detachably connected to the guide rail; wherein the handwheel drives the guide rail to move along the first direction by rotating the screw and nut pair, and drives the connecting plate to move along the first direction.

[0006] Optionally, the guide rail is rigidly pressed against the guide rail mounting plate by a guide rail pressure block, and the guide rail mounting plate is rigidly pressed against the guide rail vertical beam.

[0007] Optionally, one side of the locking rod is detachably connected to the adjusting plate through a slotted hole, the slotted hole of the adjusting plate is orthogonally arranged to the slotted hole of the locking rod, the other side of the adjusting plate is in close contact with the connecting plate, and the adjusting plate is detachably connected to the connecting plate; wherein, the locking rod can move in a plane perpendicular to the first direction by sliding the adjusting plate and the slotted hole of the locking rod.

[0008] Optionally, the support device includes: a base, which is horizontally slidably mounted on one side of the base plate through a strip hole; a base, which is fixed to the end of the base away from the base plate; and a locking hook, which is hinged to the end of the base away from the base through a base shaft.

[0009] Optionally, the hook is hinged to the middle of the base via a hook shaft, and a hook sleeve is fitted on the side wall of the hook shaft; the hydraulic drive system includes: a hydraulic cylinder, installed on the side of the base away from the hook shaft, and the push rod of the hydraulic cylinder is hinged to one end of the hook via a cylinder support rod adapter shaft; the hook has a notch in the middle, and the other end of the hook passes through the gap between the U-shaped structure and the hook sleeve, and the notch in the middle of the hook engages with the hook sleeve; a sensor one, installed on the end of the base away from the hydraulic cylinder, the sensor one is used to determine whether the push rod has reached the maximum extension position; if it has reached the maximum extension position, the extension stops, otherwise it continues to extend; a sensor two, installed on the end of the base away from the hydraulic cylinder, the sensor two is used to determine whether the push rod has reached the maximum retraction position; if it has reached the maximum retraction position, the retraction stops, otherwise it continues to retract; a sensor three, fixed on the end of the base near the hydraulic cylinder, the sensor three is used to detect whether the hook has reached the maximum rotation position; if it has reached the maximum rotation position, the rotation stops, otherwise it continues to rotate.

[0010] Optionally, the base is provided with a stop bar at one end away from the base, the stop bar being used to limit the rotation angle of the lock hook to unlock the lock bar shaft; the two ends of the torsion spring of the lock hook are respectively fixed to the end of the base away from the base and the side wall of the lock hook.

[0011] Optionally, the hydraulic drive system further includes: a shut-off valve, with two output ends connected to the respective output ends of the manual directional valve and the electric directional valve; a pressure gauge connected to the first input end of each of the manual and electric directional valves; a relief valve, with its first end connected to the pressure gauge and its second end connected to the second end of each of the manual and electric hydraulic pumps, as well as the input end of the second filter; a manual hydraulic pump, with its output end connected to the first end of the relief valve via a first check valve and its input end connected to the output end of the first filter; an electric hydraulic pump, with its output end connected to the first end of the relief valve via a second check valve and its input end connected to the output end of the first filter; the input end of the first filter is placed in the oil tank, and the output end of the second filter is placed in the oil tank; the base plate is a rectangular plate with screw holes; the base strip hole is connected to the screw holes of the rectangular plate; the base is adjustablely fixed to the base by bolts.

[0012] To achieve the above objectives, this application also provides a motion analysis experimental method for a hook-type locking device applied to the aforementioned motion analysis experimental system for the hook-type locking device. The method includes: rotating the guide rail handwheel to press the locking rod down to directly above the locking hook; when sensor three detects that the locking hook has reached a preset position, the push rod of the hydraulic cylinder drives the hook to rotate; under the action of the locking rod and the hook, the locking hook overcomes the torsion spring to lock the locking rod, thereby simulating a locking experiment; the push rod of the hydraulic cylinder extends until it reaches the preset position of sensor one, the hook separates from the locking hook; rotating the guide rail handwheel lifts the locking rod; the locking hook is rotated in the opposite direction by the torsion spring to release the locking rod, thereby simulating an unlocking experiment; and moving and adjusting the locking rod and the adjusting plate along its strip hole to simulate the randomness of the falling position of the folding antenna.

[0013] This application proposes a motion analysis experimental system and method for a hook-type locking device. The system includes: an experimental frame with a mounting guide rail, on which a locking rod is detachably mounted, the guide rail driving the locking rod to move along a first direction; a hook-type locking device including a support device and a locking hook hinged to the support device via a torsion spring, one end of the locking hook having a locking hook shaft, the path of the locking rod moving along the first direction being perpendicular to and not intersecting the rotation center line of the locking hook; a hydraulic drive system fixedly mounted on the support device, the free end of the push rod of the hydraulic drive system being hinged to a locking hook, the locking hook being hinged to the support device; when the free end of the push rod retracts... When the hook is pulled, one end moves in the direction of the push rod's retraction, while the other end pulls the locking hook axially in the direction of the push rod's retraction, thus locking the locking rod at the preset position. When the free end of the push rod extends, the hook unlocks the locking rod under the torsion of the torsion spring. By moving the position of the locking rod in a plane perpendicular to the first direction, the randomness of the folding antenna's falling position is simulated to conduct locking and unlocking experiments on the folding antenna. The system is simple in structure and complete in function, capable of satisfying the entire process of kinematic analysis of the hook-type locking device, which is beneficial for structural optimization and reliability verification during the development of this type of product. Attached Figure Description

[0014] Figure 1 This is a structural component diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the hydraulic drive principle of the present invention;

[0016] Figure 3 This is a schematic diagram of the locking rod adjustment according to the present invention;

[0017] Figure 4 This is a schematic diagram of the control logic of the present invention;

[0018] Figure 5 This is a schematic diagram showing the relative positions of the locking hook and locking rod of the hook-type locking device described in this invention.

[0019] In the diagram: 1. Base plate; 2. Sensor 1; 3. Sensor bracket; 4. Hook bushing; 5. Locking hook bushing; 6. Hook; 7. Adjusting plate; 8. Connecting plate; 9. Locking hook shaft; 10. Guide rail; 11. Guide rail bracket; 12. Guide rail mounting plate; 13. Guide rail crossbeam; 14. Guide rail vertical beam; 15. Guide rail pressure block; 16. Sensor 2; 17. Cylinder support rod adapter shaft; 18. Cylinder support rod adapter sleeve; 19. Sensor 3; 20. Locking hook; 21. Locking rod; 22. Locking rod shaft; 23. Hook shaft; 24. Base shaft; 25. Torsion spring; 26. Base; 27. Stop bar; 28. Base; 29. ​​Hydraulic cylinder; 30. Shut-off valve; 31. Manual directional valve; 32. Pressure gauge; 33-1. First check valve; 33-2. Second check valve; 34. Manual hydraulic pump; 35-1. First filter; 35-2. Second filter; 36. Oil tank; 37. Electric hydraulic pump; 38. Relief valve; 39. Manual directional valve.

[0020] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] Figure 1 This is a structural component diagram of the present invention, with reference to... Figure 1The motion analysis experimental system of the hook-type locking device includes: a locking rod 21, with a locking rod shaft 22 at one end. One side of the locking rod 21 is detachably connected to the adjusting plate 7 through a strip hole. The strip hole of the adjusting plate 7 is orthogonally arranged with the strip hole of the locking rod 21. The other side of the adjusting plate 7 is in close contact with the connecting plate 8, and the adjusting plate 7 is detachably connected to the connecting plate 8.

[0023] The locking rod 21 moves in a plane perpendicular to the first direction by means of the sliding adjustment plate 7 and the strip hole of the locking rod 21.

[0024] The experimental frame is equipped with a mounting guide rail 10, which is detachably connected to a locking rod 21. The guide rail 10 is used to drive the locking rod shaft 22 of the locking rod 21 to move along a first direction.

[0025] The experimental frame may specifically include a base plate 1, a guide rail beam 13, a guide rail 10, and a connecting plate 8. Two guide rail beams 14 with the same length direction as the first direction are fixed to one side of the base plate 1. The guide rail beam 13 is connected to the middle of the two guide rail beams 14 along a second direction, forming an H-shaped support frame, wherein the second direction is perpendicular to the first direction. The guide rail 10 is fixed to the free ends of the two guide rail beams 14 via a guide rail mounting plate 12, and the guide rail 10 is connected to a handwheel via a screw and nut pair. The connecting plate 8 is detachably connected to the guide rail 10.

[0026] The handwheel drives the lead screw and nut pair to rotate, which in turn drives the guide rail 10 to move along the first direction, and in turn drives the connecting plate 8 to move along the first direction. It can be understood that the guide rail 10 is rigidly pressed against the guide rail mounting plate 12 by the guide rail pressure block 15, and the guide rail mounting plate 12 is rigidly pressed against the guide rail vertical beam 14.

[0027] In one embodiment of this application, the hook-type locking device includes a support device and a locking hook 20 hinged to the support device by a torsion spring 25. One end of the locking hook 20 is provided with a locking hook shaft 9. The path of the locking rod 21 moving in the first direction is perpendicular to and does not intersect with the rotation center line of the locking hook 20.

[0028] One side of the locking rod 21 is detachably connected to the adjusting plate 7 through a strip hole. The strip hole of the adjusting plate 7 is orthogonal to the strip hole of the locking rod 21. The other side of the adjusting plate 7 is in close contact with the connecting plate 8, and the adjusting plate 7 is detachably connected to the connecting plate 8. The locking rod 21 can move in a plane perpendicular to the first direction by sliding the adjusting plate 7 and the strip hole of the locking rod 21.

[0029] In one embodiment of this application, the support device includes a base 28 and a base 26, wherein the base 28 is horizontally slidably mounted on one side of the base plate 1 through a strip hole; the base 26 is fixed to the end of the base 28 away from the base plate 1; and the locking hook 20 is hinged to the end of the base 26 away from the base 28 through the base shaft 24.

[0030] The hydraulic drive system is fixedly installed on the support device. The free end of the push rod of the hydraulic drive system is hinged with a hook 6. The hook 6 is hinged to the middle of the base 26 through the hook shaft 23. The side wall of the locking shaft 9 is fitted with a locking shaft sleeve 5.

[0031] The hydraulic drive system includes a hydraulic cylinder 29, a sensor 2, a sensor 16, and a sensor 3 19. The hydraulic cylinder 29 is mounted on the base 26 away from the hook shaft 23, and its push rod is hinged to one end of the hook 6 via a cylinder support rod adapter shaft 17. The hook 6 has a notch in the middle, and the other end of the hook 6 passes through the gap between the U-shaped structure and the locking hook sleeve 5, where the notch engages with the locking hook sleeve 5. Sensor 2 is mounted on the base 26 away from the hydraulic cylinder 29. Sensor 2 determines whether the push rod has reached its maximum extension position; if it has, extension stops; otherwise, extension continues. Sensor 2 16 is mounted on the base 26 away from the hydraulic cylinder 29. Sensor 2 16 determines whether the push rod has reached its maximum retraction position; if it has, retraction stops; otherwise, retraction continues. Sensor 3 19 is fixed to the base 26 near the hydraulic cylinder 29. Sensor 3 19 detects whether the locking rod 21 has fallen to a preset position. When the free end of the push rod retracts, one end of the hook 6 is pulled to move in the direction of the push rod's retraction, and the other end of the hook 6 pulls the locking hook shaft 9 to move in the direction of the push rod's retraction, so as to pull the hook 6 and lock the locking rod 21, which has moved to the preset position; when the free end of the push rod extends, the locking hook 20 unlocks the locking rod 21 under the torque of the torsion spring 25; by moving the position of the locking rod 21 on a plane perpendicular to the first direction, the randomness of the falling position of the folding antenna is simulated to conduct the locking and unlocking experiment of the folding antenna.

[0032] In addition, a stop bar 27 is provided at the end of the base 26 away from the base 28. The stop bar 27 is used to limit the rotation angle of the lock hook 20 to unlock the lock bar shaft 22; the lock hook 20 unlocks the lock bar 21 under the torque of the torsion spring 25.

[0033] The hydraulic drive system also includes a shut-off valve 30, a pressure gauge 32, a relief valve 38, a manual hydraulic pump 34, and an electric hydraulic pump 37, wherein the two outputs of the shut-off valve 30 are respectively connected to the outputs of the manual directional valve 31 and the electric directional valve 39.

[0034] Pressure gauge 32 is connected to the first input terminal of both manual directional valve 31 and electric directional valve 39;

[0035] The first end of the relief valve 38 is connected to the pressure gauge 32, and the second end is connected to the second end of the manual hydraulic pump 34 and the electric hydraulic pump 37, respectively, as well as the input end of the second filter 35-2.

[0036] The output end of the manual hydraulic pump 34 is connected to the first end of the relief valve 38 through the first check valve 33-1, and the input end is connected to the output end of the first filter 35-1.

[0037] The output end of the electric hydraulic pump 37 is connected to the first end of the relief valve 38 through the second check valve 33-2, and the input end is connected to the output end of the first filter 35-1.

[0038] The input end of the first filter 35-1 is placed inside the oil tank 36, and the output end of the second filter 35-2 is placed inside the oil tank 36; the base plate 1 is a rectangular plate with screw holes; the base 28 has a strip hole connected to the screw holes of the rectangular plate; the base 26 is adjustablely fixed to the base 28 by bolts.

[0039] Based on the above embodiments, this application also provides a motion analysis experimental method for a hook-type locking device, which is applied to a motion analysis experimental system for a hook-type locking device. The method includes rotating the handwheel of the guide rail 10 to press the locking rod 21 down to directly above the locking hook 20. When the sensor 3 19 detects that the locking hook 20 has reached the preset position, the push rod of the hydraulic cylinder 29 drives the hook 6 to rotate. Under the action of the locking rod 21 and the hook 6, the locking hook 20 overcomes the torsion spring 25 to lock the locking rod 21, so as to simulate a locking experiment.

[0040] The push rod of hydraulic cylinder 29 extends until it reaches the preset position of sensor 2, the hook 6 separates from the locking hook 20, the handwheel of rotating guide rail 10 lifts the locking rod 21, and the locking hook 20 rotates in the opposite direction under the action of torsion spring 25 to release the locking rod 21, so as to simulate the unlocking experiment.

[0041] The locking rod 21 and the adjustment plate 7 are moved and adjusted along their strip holes to simulate the randomness of the falling position of the folded antenna.

[0042] The working principle of this application is as follows: the handwheel of the rotating guide rail 10 causes the locking rod 21 to press down the locking hook 20. When the sensor 3 19 determines that the locking hook 20 is close, the electric hydraulic pump 37 is switched to the return oil state. The locking hook bushing 5 slides along the surface of the hook 6. The spring inside the hydraulic cylinder drives the hydraulic push rod to retract. When the sensor 2 16 determines that the hydraulic push rod has been reset, the hook-type locking device is locked. The electric hydraulic pump 37 is switched to the neutral position to simulate the locking experiment.

[0043] Switch the electric hydraulic pump 37 to the oil supply state, and the hydraulic drive system pushes out the hydraulic push rod. When the sensor 2 determines that the hydraulic push rod has been pushed out to the position, the electric hydraulic pump 37 switches to the neutral position. At this time, the locking hook 20 rotates and releases the locking rod 21 under the action of the torsion spring 25. The handwheel of the guide rail 10 is rotated in the opposite direction to move the locking rod 21 upward to simulate the unlocking experiment. The locking rod 21 and the adjustment plate 7 are moved and adjusted along their strip holes to simulate the randomness of the falling position of the folding antenna.

[0044] like Figure 1As shown, a motion analysis experimental system for a hook-type locking device includes an experimental frame and a hydraulic drive system. The experimental object is a hook-type locking device.

[0045] The experimental frame includes a base plate 1, an adjusting plate 7, a connecting plate 8, a guide rail 10, a guide rail bracket 11, a guide rail mounting plate 12, a guide rail crossbeam 13, a guide rail vertical beam 14, and a guide rail clamping block 15. The base plate 1 serves as the installation foundation for the entire mechanism. The guide rail mounting plate 12, the guide rail crossbeam 13, and the guide rail vertical beam 14 are connected by bolts to form the guide rail mounting platform. The guide rail bracket 11 connects the guide rail and its mounting platform with screws, and the guide rail clamping block 15 uses screws to tighten the guide rail mounting platform; both together secure the guide rail. The connecting plate 8 and the adjusting plate 7 connect the guide rail 10 and the hook-type locking device with screws. The adjusting plate 7 has slotted holes that mate with slotted holes on the locking rod 21 for adjusting the position of the locking rod 21 in the hook-type locking device. Figure 3 As shown.

[0046] like Figure 2 As shown, the hydraulic drive system includes a shut-off valve 30, a manual directional valve 31, a pressure gauge 32, two check valves 33, a manual hydraulic pump 34, two filters 35, an oil tank 36, an electric hydraulic pump 37, a relief valve 38, and an electric directional valve 39. Both the manual hydraulic pump 34 and the electric hydraulic pump 37 provide power to the hydraulic system. Both are followed by check valves 33 to prevent hydraulic oil backflow. Both the manual directional valve 31 and the electric directional valve 39 control the direction of the oil flow; in this example, an O-type three-position four-way directional valve is used. The shut-off valve 30 is used for oil flow throttling, the pressure gauge 32 displays the oil pressure, the filter 35 filters impurities from the oil source, and the relief valve 38 is used for overload unloading.

[0047] like Figure 1As shown, the experimental object is a hook-type locking device, including sensor 1 (2), three sensor brackets (3), hook bushing (4), locking hook bushing (5), hook (6), locking hook shaft (9), sensor 2 (16), cylinder support rod adapter shaft (17), cylinder support rod adapter sleeve (18), sensor 3 (19), locking hook (20), locking rod (21), locking rod shaft (22), hook shaft (23), base shaft (24), torsion spring (25), base (26), stop rod (27), base (28), and hydraulic cylinder (29). The push rod in hydraulic cylinder (29) is connected to the bottom groove of hook 6 via cylinder support rod adapter shaft (17) and cylinder support rod adapter sleeve (18). The middle part of hook 6 is connected to base (26) using hook bushing (4) and hook shaft (23). The two hook bushings (4) are located on the left and right sides of hook 6, and hook shaft (23) passes through hook bushing (4), the middle hole of hook 6, and the middle hole of base (26). The locking hook 20 is connected to the top of the base 26 via the base shaft 24 and torsion springs 25. Two torsion springs 25 are located on the left and right sides of the locking hook 20, with their ends fixed to the locking hook 20 and the base 26 respectively. The base shaft 24 passes through the upper hole of the locking hook 20 and the top hole of the base 26. The lower hole of the locking hook 20 is connected to the locking hook sleeve 5 and the locking hook shaft 9. The relative positions of the latch 6 and the locking hook 20 are as follows: Figure 1 As shown.

[0048] like Figure 4 As shown, a motion analysis experimental method for a hook-type locking device includes: Figure 5 As shown, before the experiment, adjust the adjustment plate 7, locking rod 21, base 26 and base 28 to ensure that the locking rod 21 is aligned with the center of the contact surface of the locking hook 20 when locked, i.e., state 2; when simulating the locking process of the hook-type locking device, manually rotate the handwheel on the guide rail 10 to make the connecting plate 8 drive the locking rod 21 to press down the locking hook 20. When the sensor 19 on the locking device determines that the locking hook 20 is close, switch the electric hydraulic pump 37 to the return oil state. The locking hook bushing 5 slides along the surface of the hook 6, driving the hydraulic push rod to retract. When the sensor 16 on the locking device determines that the hydraulic push rod has reset, the hook-type locking device is locked, and the electric hydraulic pump 37 is switched to the neutral position. During the simulation of the hook-type locking device unlocking process, an unlocking command is issued, and the control system switches the electric hydraulic pump 37 to the oil supply state. The hydraulic drive system pushes out the hydraulic push rod. When the sensor 2 on the locking device determines that the hydraulic push rod has been pushed out to the correct position, the electric hydraulic pump 37 switches to the neutral position. At this time, the locking hook 20 rotates under the action of the torsion spring 25 to release the locking rod 21. The handwheel on the guide rail 10 is manually rotated in the reverse direction, causing the connecting plate 8 to move the locking rod 21 upward. When simulating the fault tolerance of the hook-type locking device, the locking rod 21 and the adjusting plate 7 are moved and adjusted along their strip holes to simulate the randomness of the falling position of the folding antenna, and then locking and unlocking experiments are performed.

[0049] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0050] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0052] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A motion analysis experimental system for a hook-type locking device, characterized in that, include: Locking rod (21), with a locking rod shaft (22) at one end; The experimental frame is equipped with a mounting guide rail (10), the guide rail (10) is detachably connected to the locking rod (21), and the guide rail (10) is used to drive the locking rod shaft (22) of the locking rod (21) to move in a first direction; The hook-type locking device includes a support device and a locking hook (20) hinged to the support device by a torsion spring (25). One end of the locking hook (20) is provided with a locking hook shaft (9). The path of the locking rod (21) moving in a first direction is perpendicular to the rotation center line of the locking hook (20). The hydraulic drive system is fixedly installed on the support device. The free end of the push rod of the hydraulic drive system is hinged with a hook (6), and the hook (6) is hinged on the support device. When locking the locking rod (21), the guide rail (10) drives the locking rod (21) to move in the opposite direction to the first direction, so that the bottom of the locking rod (21) is engaged with the locking hook (20), the torsion spring (25) is tightened, and at the same time the free end of the push rod retracts, pulling one end of the hook (6) to move in the direction of the push rod retraction. The groove in the middle of the hook (6) pulls the locking hook shaft (9) of the locking hook (20) to move in the direction of the push rod extension, so as to pull the locking hook (20) to lock the locking rod shaft (22) that has moved to the preset position. When the locking lever (21) is unlocked, the free end of the push rod extends, the central groove of the hook (6) separates from the locking hook (20), and the locking hook (20) returns to its original position under the torque of the torsion spring (25) to unlock the locking lever shaft (22); By moving the position of the locking bar (21) on a plane perpendicular to the first direction, the randomness of the falling position of the folded antenna is simulated, so as to conduct random locking and unlocking experiments of the folded antenna.

2. The motion analysis experimental system of the catch lock according to claim 1, wherein, The experimental setup includes: The base plate (1) has two guide rail vertical beams (14) with the same length direction as the first direction fixed on one side. The guide rail crossbeam (13) is connected to the middle of the two guide rail vertical beams (14) along the second direction to form an H-shaped support frame. Wherein, the second direction is perpendicular to the first direction; The guide rail (10) is fixed to the free ends of the two guide rail vertical beams (14) by the guide rail mounting plate (12). The handwheel is connected via a lead screw and nut pair; Connecting plate (8), detachable connecting rail (10); The handwheel drives the lead screw nut pair to rotate, which in turn drives the guide rail (10) to move along the first direction and causes the connecting plate (8) to move along the first direction.

3. The motion analysis experimental system of the catch hook locker according to claim 2, wherein The guide rail (10) is rigidly pressed onto the guide rail mounting plate (12) by the guide rail pressure block (15), and the guide rail mounting plate (12) is rigidly pressed onto the guide rail vertical beam (14).

4. The motion analysis experimental system of the catch hook locker according to claim 3, wherein One side of the locking rod (21) is detachably connected to the adjusting plate (7) through a strip hole. The strip hole of the adjusting plate (7) is orthogonal to the strip hole of the locking rod (21). The other side of the adjusting plate (7) is in close contact with the connecting plate (8), and the adjusting plate (7) is detachably connected to the connecting plate (8). The locking rod (21) moves in a plane perpendicular to the first direction by means of the sliding adjustment plate (7) and the strip hole of the locking rod (21).

5. The kinematic analysis test system for a catch-locked according to claim 4, wherein The support device includes: The base (28) is horizontally slidably mounted on one side of the base plate (1) through the strip hole; The base (26) is fixed to the end of the base (28) away from the bottom plate (1); The locking hook (20) is hinged to the end of the base (26) away from the base (28) via the base shaft (24).

6. The motion analysis experimental system of the catch-lock according to claim 5, wherein The hook (6) is hinged to the middle of the base (26) via the hook shaft (23), and the side wall of the hook shaft (9) is fitted with a hook shaft sleeve (5). The hydraulic drive system includes: A hydraulic cylinder (29) is installed on the side of the base (26) away from the hook shaft (23), and the push rod of the hydraulic cylinder (29) is hinged to one end of the hook (6) through the cylinder support rod adapter shaft (17). The hook (6) has a notch in the middle. After the other end of the hook (6) passes through the gap between the U-shaped structure and the locking hook sleeve (5), the notch in the middle of the hook (6) is engaged with the locking hook sleeve (5). Sensor 1 (2) is installed at the end of the base (26) away from the hydraulic cylinder (29). Sensor 1 (2) is used to determine whether the push rod has reached the maximum extension position. If it has reached the maximum extension position, the extension is stopped; otherwise, the extension continues. Sensor 2 (16) is installed at the end of the base (26) away from the hydraulic cylinder (29). Sensor 2 (16) is used to determine whether the push rod has reached the maximum contraction position. If it has reached the maximum contraction position, the contraction stops; otherwise, the contraction continues. Sensor 3 (19) is fixed to one end of the base (26) near the hydraulic cylinder (29). Sensor 3 (19) is used to detect whether the locking rod (21) has fallen to a preset position.

7. The kinematic analysis test system for a catch-locked according to claim 6, wherein The base (26) has a stop bar (27) at one end away from the base (28), the stop bar (27) being used to limit the rotation angle of the lock hook (20) to unlock the lock bar shaft (22).

8. The motion analysis experimental system of a catch-type locker according to claim 7, wherein The hydraulic drive system also includes: The shut-off valve (30) has two output terminals connected to the output terminals of the manual directional valve (31) and the electric directional valve (39), respectively. Pressure gauge (32) is connected to the first input terminal of both manual directional valve (31) and electric directional valve (39); The relief valve (38) has a pressure gauge (32) connected to its first end, and its second end is connected to the second end of the manual hydraulic pump (34) and the electric hydraulic pump (37), as well as the input end of the second filter (35-2). The manual hydraulic pump (34) has its output end connected to the first end of the relief valve (38) via the first check valve (33-1), and its input end connected to the output end of the first filter (35-1). An electric hydraulic pump (37) has its output end connected to the first end of a relief valve (38) via a second check valve (33-2), and its input end connected to the output end of a first filter (35-1). The input end of the first filter (35-1) is placed inside the oil tank (36), and the output end of the second filter (35-2) is placed inside the oil tank (36); The base plate (1) is a rectangular plate with screw holes; The base (28) has a strip hole that connects to the screw holes of the rectangular plate; The base (26) is adjustablely fixed to the base (28) by bolts.

9. A method of kinematic analysis experiment of a catch-type lock, characterized by, The method, applied to the motion analysis experimental system of the hook-type locking device as described in any one of claims 1-8, comprises: The handwheel of the rotating guide rail (10) presses the locking rod (21) down to directly above the locking hook (20). When the sensor three (19) detects that the locking hook (20) has reached the preset position, the push rod of the hydraulic cylinder (29) drives the hook (6) to rotate. Under the action of the locking rod (21) and the hook (6), the locking hook (20) locks the locking rod (21) against the torsion spring (25) to simulate the locking experiment. The push rod of the hydraulic cylinder (29) extends until it reaches the preset position of the sensor (2), the hook (6) separates from the lock hook (20), the handwheel of the rotating guide rail (10) lifts the lock rod (21), and the lock hook (20) rotates in the opposite direction under the action of the torsion spring (25) to release the lock rod (21) to simulate the unlocking experiment; The locking rod (21) and the adjustment plate (7) are moved and adjusted along their strip holes to simulate the randomness of the falling position of the folded antenna.

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