Motion analysis experiment system and experiment method for clamping hook type locker

Abstract

The invention discloses a motion analysis experiment system and experiment method for a clamping hook type locker. The system comprises a guide rail which is installed on an experiment frame and used for driving a lock rod to move in the first direction; the clamping hook type locker comprises a supporting device and a lock hook hinged to the supporting device through a torsion spring, one end of the lock hook is provided with a lock hook shaft, and the moving path of the lock rod in the first direction is perpendicular to the rotating center line of the lock hook. The hydraulic driving system is fixedly arranged on the supporting device, a clamping hook is hinged to the free end of a push rod of the hydraulic driving system, and the clamping hook is hinged to the supporting device; when the free end of the push rod retracts, one end of the clamping hook is pulled to move in the retracting direction of the push rod, and the lock rod moving to the preset position is locked; according to the clamping hook type locker kinematics analysis system, the structure is simple, the functions are complete, and the whole process of clamping hook type locker kinematics analysis can be met.

Description

Technical Field

[0001] The present application relates to the technical field of antenna lockers, and more specifically to a motion analysis experimental system and experimental method for a hook-type locker. Background Art

[0002] The hook-type locking mechanism is used in the locking of large radar antennas because of its advantages such as large locking margin and high reliability. During the research and development of the hook-type locking mechanism, kinematic simulation analysis is often used to analyze the relative motion relationship of the various components in the locking mechanism. However, due to factors such as errors generated during processing and assembly, the simulation method often deviates from the actual situation. At the same time, the simulation method cannot accurately evaluate the motion friction characteristics, reliability and other indicators of the hook-type locking mechanism. Therefore, the present invention proposes a motion analysis experimental system and experimental method for the hook-type locking mechanism to provide support for design development, usage characteristic evaluation and later optimization. Summary of the Invention

[0003] The main purpose of this application is to provide a motion analysis experimental system and experimental 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-mentioned purpose, the present application provides a motion analysis experimental system of a hook-type locking device, comprising: a locking rod, one end of which is provided with a locking rod shaft; an experimental frame, provided with a mounting guide rail, the guide rail being detachably connected to the locking rod, the guide rail being used to drive the locking rod shaft of the locking rod to move along a first direction; a hook-type locking device, comprising a supporting device and a locking hook hinged to the supporting device by a torsion spring, one end of the locking hook being provided with a locking hook shaft, the path of the locking rod moving along the first direction being perpendicular to and not intersecting with the rotation center line of the locking hook; a hydraulic drive system, fixedly arranged on the supporting device, the free end of the push rod of the hydraulic drive system being hingedly provided with a hook, and the hook being hingedly arranged on the supporting device; when the locking rod is locked, the guide rail The locking rod is driven to move in a direction opposite to the first direction, so that the bottom of the locking rod is stuck in the locking hook, the torsion spring is tightened, and the free end of the push rod is contracted at the same time, pulling one end of the hook to move in the direction of contraction of the push rod, and the middle groove of the hook pulls the locking hook axis of the locking hook to move in the direction of extension of the push rod, so as to pull the locking hook to lock the locking rod shaft that has moved to the preset position; when the locking rod is unlocked, the free end of the push rod is extended, the middle groove of the hook is separated from the locking hook, and the locking hook returns to its original position under the torsion of the torsion spring to unlock the locking rod shaft; by moving the position of the locking rod on a plane perpendicular to the first direction, the randomness of the falling position of the folding antenna is simulated to conduct a random locking and unlocking experiment of the folding antenna.

[0005] Optionally, the experimental frame includes: a base plate, two guide rail vertical beams with the same length direction as the first direction are fixed on one side of the base plate; a guide rail crossbeam, connected to the middle parts of the two guide rail vertical beams along the 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 through a guide rail mounting plate, and the guide rail is connected to a handwheel through a screw nut pair; a connecting plate, which is detachably connected to the guide rail; wherein the handwheel drives the screw nut pair to rotate, drives the guide rail to move along the first direction, 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 pressing 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 adjustment plate through a strip hole, the strip hole of the adjustment plate is arranged orthogonally to the strip hole of the locking rod, the other side of the adjustment plate is tightly attached to the connecting plate, and the adjustment plate is detachably connected to the connecting plate; wherein, the locking rod is moved in a plane perpendicular to the first direction by sliding the adjustment plate and the strip hole of the locking rod.

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

[0009] Optionally, the hook is hinged to the middle of the base through a hook shaft, and a lock hook shaft sleeve is provided on the side wall of the lock hook shaft; the hydraulic drive system includes: a hydraulic cylinder, which is 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 through a cylinder support rod adapter shaft, and a notch is provided in the middle of the hook. After the other end of the hook passes through the gap between the U-shaped structure and the lock hook shaft sleeve, the notch in the middle of the hook is engaged with the lock hook shaft sleeve; sensor one is installed at the end of the base away from the hydraulic cylinder, and the sensor one is used to determine whether the push rod has reached the maximum extension position. If it reaches the maximum extension position, it stops extending, otherwise it continues to extend; sensor two is installed at the end of the base away from the hydraulic cylinder, and the sensor two is used to determine whether the push rod has reached the maximum contraction position. If it reaches the maximum contraction position, it stops contracting, otherwise it continues to contract; sensor three is fixed to one end of the base close to the hydraulic cylinder, and the sensor three is used to detect whether the lock hook has reached the maximum rotation position. If it reaches the maximum rotation position, it stops rotating, otherwise it continues to rotate.

[0010] Optionally, a stop rod is provided at one end of the base away from the base, and the stop rod is used to limit the rotation angle of the lock hook to unlock the lock rod shaft; both 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 also includes: a stop valve, the two output ends of which are respectively connected to the output ends of the manual reversing valve and the electric reversing valve; a pressure gauge, connected to the first input end of the manual reversing valve and the electric reversing valve; a relief valve, the first end of which is connected to the pressure gauge, and the second end of which is respectively connected to the second end of the manual hydraulic pump, the electric hydraulic pump, and the input end of the second filter; the manual hydraulic pump, the output end of which is connected to the first end of the relief valve through the first one-way valve, and the input end is connected to the output end of the first filter; the electric hydraulic pump, the output end of which is connected to the first end of the relief valve through the second one-way valve, and the input end is 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 bottom plate is a rectangular plate, and the rectangular plate has screw holes; the base strip holes are connected to the screw holes of the rectangular plate; the base is adjustably fixed to the base by bolts.

[0012] In order to achieve the above-mentioned purpose, the present application also provides a motion analysis experimental method of a hook-type lock, which is applied to the motion analysis experimental system of the hook-type lock described above, and the method includes: rotating the guide rail handwheel to press the locking rod down to just above the locking hook, and when sensor three detects that the locking hook reaches the preset position, the push rod of the hydraulic cylinder drives the hook to rotate, and the locking hook overcomes the torsion spring to lock the locking rod under the action of the locking rod and the hook to simulate the locking experiment; the push rod of the hydraulic cylinder extends until it reaches the preset position of sensor one, the hook is separated from the locking hook, and the guide rail handwheel is rotated to lift the locking rod, and the locking hook rotates in the opposite direction under the action of the torsion spring to release the locking rod to simulate the unlocking experiment; the locking rod and the adjustment plate are moved and adjusted along their strip holes to simulate the randomness of the falling position of the folding antenna.

[0013] The embodiment of the present application proposes a motion analysis experimental system and experimental method for a hook-type locking device, the system includes: an experimental frame, provided with a mounting guide rail, the guide rail is detachably provided with a locking rod, the guide rail is used to drive 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 by a torsion spring, one end of the locking hook is provided with a locking hook shaft, the path of the locking rod moving along the first direction is perpendicular to and does not intersect the rotation center line of the locking hook; a hydraulic drive system is fixedly provided on the support device, the free end of the push rod of the hydraulic drive system is hingedly provided with a hook, and the hook is hinged to the support device; when the free end of the push rod is retracted When the lock rod is unlocked, the locking rod is unlocked. ... BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a diagram of the structural components of the present invention;

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

[0016] Figure 3 A schematic diagram of adjusting the locking rod of the present invention;

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

[0018] Figure 5 This is a schematic diagram of the relative positions of the lock hook and the lock rod of the hook-type locker described in the present invention.

[0019] In the figure: 1. Base plate; 2. Sensor 1; 3. Sensor bracket; 4. Hook sleeve; 5. Lock hook sleeve; 6. Hook; 7. Adjustment plate; 8. Connecting plate; 9. Lock 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. Lock hook; 21. Lock rod; 22. Lock rod shaft; 23. Hook shaft; 24. Base shaft; 25. Torsion spring; 26. Base; 27. Stop rod; 28. Base; 29. Hydraulic cylinder; 29. Hydraulic cylinder; 30. Stop valve; 31. Manual reversing valve; 32. Pressure gauge; 33-1. First one-way valve; 33-2. Second one-way valve; 34. Manual hydraulic pump; 35-1. First filter; 35-2. Second filter; 36. Fuel tank; 37. Electric hydraulic pump; 38. Overflow valve; 39. Manual reversing valve.

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

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] Figure 1 For the structural components of the present invention, refer to Figure 1The motion analysis experimental system of the hook-type locking device includes: a locking rod 21, one end of which is provided with a locking rod shaft 22, one side of the locking rod 21 is detachably connected to the adjustment plate 7 through a strip hole, the strip hole of the adjustment plate 7 is arranged orthogonally to the strip hole of the locking rod 21, the other side of the adjustment plate 7 is tightly attached to the connecting plate 8, and the adjustment plate 7 is detachably connected to the connecting plate 8;

[0023] The locking rod 21 is moved on a plane perpendicular to the first direction by sliding the adjustment plate 7 and the strip-shaped hole of the locking rod 21 .

[0024] The experimental frame is provided 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 along the first direction;

[0025] The experimental frame may specifically include a base plate 1, a guide rail crossbeam 13, a guide rail 10 and a connecting plate 8, wherein two guide rail vertical beams 14 having the same length direction as the first direction are fixedly provided on one side of the base plate 1; the guide rail crossbeam 13 is connected to the middle of the two guide rail vertical beams 14 along a 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 through a guide rail mounting plate 12, and the guide rail 10 is connected to the handwheel through a screw nut pair; the connecting plate 8 is detachably connected to the guide rail 10;

[0026] The handwheel drives the screw-nut pair to rotate, thereby driving the guide rail 10 to move in the first direction and driving the connecting plate 8 to move in 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 pressing block 15, and the guide rail mounting plate 12 is rigidly pressed against the guide rail vertical beam 14.

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

[0028] Among them, one side of the locking rod 21 is detachably connected to the adjustment plate 7 through a strip hole, the strip hole of the adjustment plate 7 is arranged orthogonally to the strip hole of the locking rod 21, the other side of the adjustment plate 7 is tightly attached to the connecting plate 8, and the adjustment plate 7 is detachable from the connecting plate 8; the locking rod 21 is moved on a plane perpendicular to the first direction by sliding the adjustment plate 7 and the strip hole of the locking rod 21.

[0029] In one embodiment of the present application, the supporting device includes a base 28 and a base 26, wherein the base 28 is horizontally slidably installed on a 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; 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 mounted on the support device. The free end of the push rod of the hydraulic drive system is hingedly provided with a hook 6. The hook 6 is hingedly connected to the middle of the base 26 through a hook shaft 23. The side wall of the hook shaft 9 is sleeved with a hook shaft sleeve 5.

[0031] The hydraulic drive system includes a hydraulic cylinder 29, a sensor 2, a sensor 2 16 and a sensor 3 19, wherein the 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. A notch is provided in the middle of the hook 6. After the other end of the hook 6 passes through the gap between the U-shaped structure and the lock hook sleeve 5, the notch in the middle of the hook 6 is engaged with the lock hook sleeve 5; sensor 1 2 is installed on the end of the base 26 away from the hydraulic cylinder 29, and sensor 1 2 is used to determine whether the push rod has reached the maximum extension position. If it reaches the maximum extension position, it stops extending, otherwise it continues to extend; sensor 2 16 is installed on the end of the base 26 away from the hydraulic cylinder 29, and sensor 2 16 is used to determine whether the push rod has reached the maximum contraction position. If it reaches the maximum contraction position, it stops contracting, otherwise it continues to contract; sensor 3 19 is fixed to the end of the base 26 close to the hydraulic cylinder 29, and sensor 3 19 is used to detect whether the locking rod 21 has fallen to the preset position. When the free end of the push rod contracts, one end of the hook 6 is pulled to move in the direction of the push rod contraction, and the other end of the hook 6 pulls the lock hook shaft 9 to move in the direction of the push rod contraction, so as to pull the hook 6 and lock the lock rod 21 that has moved to the preset position; when the free end of the push rod is extended, the lock hook 20 unlocks the lock rod 21 under the torsion of the torsion spring 25; by moving the position of the lock rod 21 on a plane perpendicular to the first direction, the randomness of the falling position of the folding antenna is simulated to conduct a locking and unlocking experiment of the folding antenna.

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

[0033] The hydraulic drive system further 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 output ends of the shut-off valve 30 are connected to the output ends of the manual reversing valve 31 and the electric reversing valve 39, respectively;

[0034] The pressure gauge 32 is connected to the first input end of each of the manual reversing valve 31 and the electric reversing 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, the electric hydraulic pump 37, and 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 one-way 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 one-way 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 in the oil tank 36, and the output end of the second filter 35-2 is placed in the oil tank 36; the bottom plate 1 is a rectangular plate with screw holes; the strip holes of the base 28 are connected to the screw holes of the rectangular plate; the base 26 is adjustably fixed to the base 28 by bolts.

[0039] Based on the above embodiment, the present application further provides a motion analysis experimental method for a hook-type lock, which is applied to a motion analysis experimental system for a hook-type lock. The method includes rotating the handwheel of the guide rail 10 to press the locking rod 21 downward to directly above the locking hook 20. When the sensor 3 19 detects that the locking hook 20 has reached a 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 and locks the locking rod 21 to simulate a locking experiment.

[0040] 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 hand wheel 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, simulating the unlocking experiment;

[0041] The locking rod 21 and the adjusting plate 7 are moved and adjusted along the strip-shaped holes thereof to simulate the randomness of the falling position of the folding antenna.

[0042] The working principle of this application is to rotate the handwheel of the guide rail 10 to make the locking rod 21 press the locking hook 20 downward. When the sensor 3 19 determines that the locking hook 20 is approaching, the electric hydraulic pump 37 is switched to the oil return state, the locking hook sleeve 5 slides along the surface of the hook 6, and the spring inside the hydraulic cylinder drives the hydraulic push rod to retract. When the sensor 2 16 determines that the hydraulic push rod is reset, the hook-type locker is locked and the electric hydraulic pump 37 is switched to the middle 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 is pushed into place, the electric hydraulic pump 37 switches to the middle position. At this time, the lock hook 20 rotates under the action of the torsion spring 25 to release the lock rod 21, and the handwheel of the guide rail 10 is rotated in the opposite direction to move the lock rod 21 upward to simulate the unlocking experiment; the lock 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, and the experimental object is a hook-type locking device.

[0045] The experimental frame includes a base plate 1, an adjustment 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 pressure block 15. The base plate 1 is the installation base of 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 a guide rail mounting platform. The guide rail bracket 11 connects the guide rail and its mounting platform with screws, and the guide rail pressure block 15 uses screws to tighten the guide rail mounting platform, and the two together fix the guide rail. The connecting plate 8 and the adjustment plate 7 use screws to connect the guide rail 10 and the hook-type locker. The adjustment plate 7 is provided with a strip hole, which cooperates with the strip hole on the locking rod 21 to adjust the position of the locking rod 21 in the hook-type locker, such as Figure 3 shown.

[0046] like Figure 2 As shown, the hydraulic drive system includes a shutoff valve 30, a manual reversing valve 31, a pressure gauge 32, two one-way 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 reversing valve 39. Both the manual hydraulic pump 34 and the electric hydraulic pump 37 provide power to the hydraulic system. A one-way valve 33 is located behind each of the manual hydraulic pumps 34 and the electric hydraulic pump 37 to prevent backflow of hydraulic oil. Both the manual reversing valve 31 and the electric reversing valve 39 control the direction of the oil circuit. In this example, an O-type three-position, four-way reversing valve is used. The shutoff valve 30 is used for oil circuit throttling, the pressure gauge 32 is used to display oil pressure, the filter 35 is used to filter impurities in 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, which includes sensor 1 2, three sensor brackets 3, hook sleeve 4, lock hook sleeve 5, hook 6, lock hook shaft 9, sensor 2 16, cylinder support rod adapter shaft 17, cylinder support rod adapter sleeve 18, sensor 3 19, lock hook 20, lock rod 21, lock 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 the cylinder support rod adapter shaft 17 and cylinder support rod adapter sleeve 18. The middle of hook 6 is connected to base 26 using hook sleeve 4 and hook shaft 23. Two hook sleeves 4 are located on the left and right sides of hook 6, and the hook shaft 23 passes through the hook sleeve 4, the middle hole of hook 6, and the middle hole of base 26. The lock hook 20 is connected to the top of the base 26 through the base shaft 24 and the torsion spring 25. The two torsion springs 25 are located on the left and right sides of the lock hook 20. The two ends of the torsion spring 25 are fixed to the lock hook 20 and the base 26 respectively. The base shaft 24 passes through the upper hole of the lock hook 20 and the top hole of the base 26. The lower hole of the lock hook 20 is connected to the lock hook sleeve 5 and the lock hook shaft 9. The relative position of the hook 6 and the lock hook 20 is as shown in FIG. Figure 1 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, the adjustment plate 7, the locking rod 21, the base 26 and the base 28 are adjusted to ensure that the locking rod 21 is aligned with the center of the contact surface of the lock hook 20 when locking, that is, state 2; when simulating the locking process of the hook-type locker, the hand wheel on the guide rail 10 is manually rotated to make the connecting plate 8 drive the locking rod 21 to press down the lock hook 20. When the sensor three 19 on the locker determines that the lock hook 20 is approaching, the electric hydraulic pump 37 is switched to the oil return state, and the lock hook sleeve 5 slides along the surface of the hook 6, driving the hydraulic push rod to retract. When the sensor two 16 on the locker determines that the hydraulic push rod is reset, the hook-type locker is locked and the electric hydraulic pump 37 is switched to the middle position. To simulate the unlocking process of a hook-type fastener, an unlock command is issued, the control system switches the electric hydraulic pump 37 to the oil supply state, and the hydraulic drive system pushes the hydraulic push rod. When sensor 2 on the fastener determines that the hydraulic push rod has been fully extended, the electric hydraulic pump 37 switches to the neutral position. At this point, the lock 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 opposite direction, causing the connecting plate 8 to move the locking rod 21 upward. To simulate the fault tolerance of the hook-type fastener, the locking rod 21 and the adjustment plate 7 are moved and adjusted along their strip holes to simulate the randomness of the folding antenna's falling position, and then locking and unlocking experiments are conducted.

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

[0050] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0051] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0052] The above are only preferred embodiments of the present application and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A motion analysis experimental system for a hook-type locking device, characterized in that: include: A locking rod (21) having a locking rod shaft (22) at one end; An experimental stand is provided with a guide rail (10) for mounting a guide rail, wherein the guide rail (10) is detachably connected to a locking rod (21), and the guide rail (10) is used to drive a locking rod shaft (22) of the locking rod (21) to move along a first direction; A hook-type locking device comprises a support device and a lock hook (20) hinged to the support device via a torsion spring (25), a lock hook shaft (9) being provided at one end of the lock hook (20), and a path of movement of the lock rod (21) in a first direction being perpendicular to a rotation centerline of the lock hook (20); A hydraulic drive system is fixedly arranged on the supporting device, a free end of a push rod of the hydraulic drive system is hingedly provided with a hook (6), and the hook (6) is hingedly arranged on the supporting device; When locking the locking rod (21), the guide rail (10) drives the locking rod (21) to move in a direction opposite to the first direction, so that the bottom of the locking rod (21) is locked in the locking hook (20), the torsion spring (25) is tightened, and at the same time the free end of the push rod contracts, pulling one end of the hook (6) to move in the direction of contraction of the push rod, and the middle groove of the hook (6) pulls the lock hook shaft (9) of the locking hook (20) to move in the direction of extension of the push rod, so as to pull the locking hook (20) to lock the locking rod shaft (22) that has moved to the preset position; When the lock rod (21) is unlocked, the free end of the push rod is extended, the middle groove of the hook (6) is separated from the lock hook (20), and the lock hook (20) returns to its original position under the torsion force of the torsion spring (25), thereby unlocking the lock rod shaft (22); 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 perform a random locking and unlocking experiment of the folding antenna.

2. The motion analysis experimental system of the hook-type locking device according to claim 1, characterized in that: The experimental frame includes: A bottom plate (1) has two guide rail vertical beams (14) fixedly provided on one side thereof, the length direction of which is the same as the first direction; A guide rail cross beam (13) is connected to the middle portions of the two guide rail vertical beams (14) along a 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) through the guide rail mounting plate (12), and the guide rail (10) is connected to the hand wheel through a screw nut pair; Connecting plate (8), detachable connecting guide rail (10); The hand wheel drives the screw nut pair to rotate, drives the guide rail (10) to move along the first direction, and drives the connecting plate (8) to move along the first direction.

3. The motion analysis experimental system of the hook-type locking device according to claim 1, characterized in that: The guide rail (10) is rigidly pressed onto the guide rail mounting plate (12) via a guide rail pressing 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 hook-type locking device according to claim 1, characterized in that: One side of the locking rod (21) is detachably connected to the adjustment plate (7) through a strip hole, the strip hole of the adjustment plate (7) is arranged orthogonally to the strip hole of the locking rod (21), the other side of the adjustment plate (7) is in close contact with the connecting plate (8), and the adjustment plate (7) is detachably connected to the connecting plate (8); The movement of the locking rod (21) on a plane perpendicular to the first direction is achieved by sliding the adjustment plate (7) and the strip-shaped hole of the locking rod (21).

5. The motion analysis experimental system of the hook-type locking device according to claim 3, characterized in that: The supporting device comprises: A base (28) is horizontally slidably mounted on a side surface of the bottom plate (1) through the strip hole; A base (26) is fixed to an end of the base (28) away from the bottom plate (1); The locking hook (20) is hinged to one end of the base (26) away from the seat (28) through a base shaft (24).

6. The motion analysis experimental system of the hook-type locking device according to claim 1, characterized in that: The hook (6) is hinged to the middle of the base (26) via a hook shaft (23), and a hook shaft sleeve (5) is provided on the side wall of the hook shaft (9); The hydraulic drive system comprises: A hydraulic cylinder (29) is mounted on a side of the base (26) away from the hook shaft (23), and a push rod of the hydraulic cylinder (29) is hinged to one end of the hook (6) through a cylinder support rod transfer shaft (17). A notch is provided in the middle of the hook (6). After the other end of the hook (6) passes through the gap between the U-shaped structure and the lock hook shaft sleeve (5), the notch in the middle of the hook (6) is engaged with the lock hook shaft sleeve (5); A sensor (2) is installed at one end of the base (26) away from the hydraulic cylinder (29), and the sensor (2) is used to determine whether the push rod has reached the maximum extension position. If the push rod has reached the maximum extension position, the extension is stopped; otherwise, the extension is continued; A second sensor (16) is installed at one end of the base (26) away from the hydraulic cylinder (29), and the second sensor (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 it continues to contract; The third sensor (19) is fixed to one end of the base (26) close to the hydraulic cylinder (29), and the third sensor (19) is used to detect whether the locking rod (21) falls to a preset position.

7. The motion analysis experimental system of the hook-type locking device according to claim 5, characterized in that: A stop rod (27) is provided at one end of the base (26) away from the seat (28), and the stop rod (27) is used to limit the rotation angle of the lock hook (20) to unlock the lock rod shaft (22).

8. The motion analysis experimental system of a hook-type locking device according to claim 1, characterized in that: The hydraulic drive system further comprises: The shut-off valve (30) has two output ends connected to the output ends of the manual reversing valve (31) and the electric reversing valve (39); A pressure gauge (32) connected to the first input end of each of the manual reversing valve (31) and the electric reversing valve (39); A relief valve (38), a first end of which is connected to a pressure gauge (32), and a second end of which is respectively connected to the second end of a manual hydraulic pump (34), an electric hydraulic pump (37), and an input end of a second filter (35-2); A manual hydraulic pump (34), the output end of which is connected to the first end of the overflow valve (38) via a first one-way valve (33-1), and the input end of which is connected to the output end of the first filter (35-1); An electric hydraulic pump (37), the output end of which is connected to the first end of the overflow valve (38) via the second one-way valve (33-2), and the input end of which is connected to the output end of the first filter (35-1); The input end of the first filter (35-1) is placed in the oil tank (36), and the output end of the second filter (35-2) is placed in the oil tank (36); The bottom plate (1) is a rectangular plate having screw holes; The strip holes of the base (28) are connected to the screw holes of the rectangular plate; The base (26) is adjustably fixed to the base (28) by means of bolts.

9. A motion analysis experimental method for a hook-type locking device, characterized in that: A motion analysis experimental system for a hook-type locking device according to any one of claims 1 to 8, wherein the method comprises: The hand wheel of the rotating guide rail (10) presses the locking rod (21) down to the top of 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) and locks the locking rod (21) to simulate the locking experiment. The push rod of the hydraulic cylinder (29) extends until it reaches the preset position of the sensor 1 (2), the hook (6) is separated from the lock hook (20), the hand wheel of the rotating guide rail (10) lifts the lock rod (21), and the lock hook (20) is rotated in the opposite direction by the torsion spring (25) to release the lock rod (21), so as to simulate the unlocking experiment; The locking rod (21) and the adjusting plate (7) are moved and adjusted along the strip holes thereof to simulate the randomness of the falling position of the folding antenna.

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