CN114705088B - Inertial switch testing device and testing method - Google Patents
Inertial switch testing device and testing method Download PDFInfo
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- CN114705088B CN114705088B CN202210284662.0A CN202210284662A CN114705088B CN 114705088 B CN114705088 B CN 114705088B CN 202210284662 A CN202210284662 A CN 202210284662A CN 114705088 B CN114705088 B CN 114705088B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B35/00—Testing or checking of ammunition
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses an inertial switch testing device and a testing method, wherein the inertial switch testing device comprises a frame, a driving control assembly is arranged at the top of the frame, a fixed plate is arranged below the driving control assembly, a guide shaft assembly is arranged below the fixed plate, a movable slide block assembly is arranged on the guide shaft assembly, and a falling body assembly is arranged below the movable slide block assembly; the bottom of the frame is provided with an impact seat assembly; and the falling body assembly is provided with a tested piece clamping tool. The impact between the falling body component and the impact seat component can generate impact overload force on a tested piece arranged on the falling body component, an acceleration sensor acquires the overload value change condition of the whole impact process in real time, and a test system terminal records an overload curve and detects the trigger on state of the tested piece after the impact; and the judgment of the trigger threshold value of the tested piece is completed by detecting the test results of the tested piece under different overload values. The invention has low production cost and relatively accurate measurement result, and can be used for measuring the trigger overload threshold value and time of the inertial switch.
Description
Technical Field
The present invention relates to an inertial switch testing device, and more particularly, to an inertial switch testing device and an inertial switch testing method.
Background
The conventional hard target warhead of ammunition often adopts inertia to trigger a fuze to detonate the warhead, and after the warhead reaches a target area, the fuze finishes all the functions of disarming and is in a priming state, and the fuze is required to judge that the warhead contacts with the target, so that a detonation signal is given. The inertial switch can sense the impact overload generated by the impact of the battle system on the target, the electrode is closed or opened to give out an electric signal, and the fuze duly detonates the battle part according to the signal to complete the function of detonating the battle part. The inertial switch is widely applied to fuses, safety airbags and wearable equipment, particularly has wide requirements in the electromechanical fuses, and is an important component for the electromechanical fuses to realize the triggering detonating or landing self-destruction function, and the accuracy of the inertial switch triggering overload threshold directly influences the function and safety of ammunition, so that the measurement of the inertial switch triggering overload threshold is valued.
Currently, two common methods for testing the trigger threshold of the inertial switch are adopted, one is an air cannon, and the other is a centrifugal machine. The air cannon is indoor impact overload test equipment widely used at present, is designed mainly according to the functional principle of the cannon, takes air or light gas as a power source, and emits tested products at high speed to complete impact test; the air cannon experimental technology can provide overload in a wider range, so that the air cannon experimental technology is applied to a plurality of scientific fields, but the whole set of equipment of the air cannon device is complex in composition, the magnitude of the air cannon experiment is uncontrollable, unrecoverable damage to part of products can be caused in the experimental process, the experimental period is generally longer, and the experimental cost is higher. The centrifugal machine is also a widely applied testing device, and the centrifugal machine uses the high-speed rotation of the rotor to generate strong centrifugal acceleration as equivalent impact overload acceleration, and the speed of the centrifugal machine is only related to the rotating speed and the rotating radius of the rotor, so that the centrifugal machine can be accurately controlled, and the overload threshold value measured by the testing method is relatively accurate. However, due to the limitation of the rotation speed and the rotation radius, the centrifugal acceleration provided by the centrifugal machine is limited, and the inertial switch for large impact overload cannot be detected; the centrifugal acceleration generated by the centrifugal machine is continuous, the impact overload applied to the inertial switch in actual use is instantaneous and is only in the millisecond level, so that the inertial switch which is qualified in detection of the centrifugal machine cannot work frequently in actual use, and the reliability is poor. Therefore, there is an urgent need to study a measuring apparatus capable of solving the above-mentioned problems.
Disclosure of Invention
The invention aims to provide an inertial switch testing device and an inertial switch testing method. The invention has low production cost and relatively accurate measurement result, and can be used for measuring the trigger overload threshold value and time of the inertial switch.
The technical scheme of the invention is as follows: the inertial switch testing device comprises a frame, wherein a driving control assembly is arranged at the top of the frame, a fixed plate is arranged below the driving control assembly, a guide shaft assembly is arranged below the fixed plate, a movable slide block assembly is arranged on the guide shaft assembly, a falling body assembly is arranged below the movable slide block assembly, and the falling body assembly is matched with the guide shaft assembly; an impact seat assembly corresponding to the falling body assembly is arranged in the middle of the bottom of the frame; and the falling body assembly is provided with a tested piece clamping tool.
In the inertial switch testing device, the driving control assembly comprises an upper fixing plate fixed on the frame, a gear motor is arranged above the upper fixing plate, a long shaft is arranged at the output end of the gear motor, and a wire winding wheel is arranged on the long shaft; a first pulley and a lifting hook are respectively arranged below the upper fixing plate; the frame is also provided with a second pulley; the upper fixing plate is also provided with a controller connected with the gear motor.
In the inertial switch testing device, the movable sliding block assembly comprises a movable sliding plate, a bearing seat is arranged in the middle of the upper part of the movable sliding plate, a sliding wheel shaft is arranged on the bearing seat, and a large pulley is arranged on the sliding wheel shaft; sliding holes matched with the guide shaft assemblies are formed in the two ends of the movable sliding plate; the lower surface of the movable slide plate is also provided with an electromagnet.
In the inertial switch testing device, the large pulley, the second pulley, the first pulley, the wire take-up pulley and the lifting hook are connected through ropes.
In the inertial switch testing device, the falling body assembly comprises a falling plate, a test piece fixing seat is arranged in the middle of the upper end face of the falling plate, through holes positioned on the falling plate are formed in two sides of the test piece fixing seat, and a second linear bearing is arranged in the through holes; the upper surface of the falling plate is also provided with an electromagnet suction plate matched with the electromagnet; the lower surface of the falling plate is provided with an impact block.
In the inertial switch testing device, the guide shaft assembly comprises a lower fixing plate fixed at the bottom of the frame, two guide shafts which are distributed in parallel are arranged above the lower fixing plate, and a buffer sleeve is sleeved at the bottom of the guide shafts.
In the inertial switch testing device, the impact seat assembly comprises a base plate, a fixed seat is arranged at the upper end of the base plate, a spring fixing shaft is arranged in the fixed seat, a spring is sleeved outside the spring fixing shaft, an impact seat is arranged above the spring, a gland is arranged above the impact seat, and an adjusting block is further arranged between the gland and the fixed seat.
In the inertial switch testing device, the tested piece clamping tool comprises a tool body, wherein an acceleration sensor and a tested piece are arranged in the tool body; the tool body and the acceleration sensor are connected with a test system terminal through a cable.
The test method of an inertial switch test device includes that impact between a falling body assembly and an impact seat assembly can generate impact overload force on a tested piece mounted on the falling body assembly, an acceleration sensor acquires overload value change conditions of the whole impact process in real time, a test system terminal records an overload curve, and a trigger on state of the tested piece after collision is detected; and the judgment of the trigger threshold value of the tested piece is completed by detecting the test results of the tested piece under different overload values.
In the testing method of the inertial switch testing device, the adjustment of the continuous overload value is completed by adjusting the height of the falling body assembly and the replacement of the spring through the driving control assembly.
Compared with the prior art, the invention is composed of the frame, the driving control assembly, the fixed plate, the movable sliding block assembly, the falling body assembly, the guide shaft assembly, the impact seat assembly and the tested piece clamping tool, can provide accurate impact overload and action time, has the duration of millisecond level, is matched with the actual working environment of the inertial switch, and obviously improves the measurement reliability of the centrifugal machine compared with the test result; the whole structure is simple, the assembly is convenient, the repeated test can be carried out, and the cost is economical and practical.
Specific: the frame is assembled by adopting an aluminum profile through bolts and T-shaped nuts, so that a stable support is provided for the whole device; the speed reducing motor is used as a power source, the movable sliding block assembly is pulled to move up and down along the guide shaft assembly through a pulley mechanism formed by the first pulley, the rope, the second pulley, the large pulley, the wire take-up pulley and the lifting hook, two electromagnets are arranged on the lower side of the movable sliding block assembly, and the falling body assembly can be firmly sucked when the electric power is applied, so that the initial position of the falling body assembly can be flexibly adjusted; the test piece and the acceleration sensor are installed in a test piece fixing seat on the falling body assembly through a clamping tool, move together along with the falling body assembly, impact overload can be generated after the falling body assembly collides with the impact seat assembly, the acceleration sensor feeds back the overload value change condition of the whole process in real time, an externally connected test terminal records an overload curve, and the inertia switch triggering on condition after collision is detected; the springs within the shock mount assembly act as a buffer to increase the duration of the shock overload. Through adjusting the initial height of the falling body assembly and replacing the spring, an accurate continuous overload value can be provided, test results of the inertial switch under different overload values are synthesized, and a trigger threshold value of the inertial switch can be accurately judged.
In summary, the invention has low production cost and relatively accurate measurement result, and can be used for measuring the trigger overload threshold value and time of the inertial switch.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a partial structural view of the guide shaft assembly;
FIG. 4 is a structural view of the movable slider assembly;
FIG. 5 is a top view of the movable slider assembly;
FIG. 6 is a structural view of the drop body assembly;
FIG. 7 is a top view of the drop body assembly;
FIG. 8 is a structural view of an impingement seat;
FIG. 9 is a structural view of the drive control assembly;
FIG. 10 is a side view of FIG. 9;
FIG. 11 is a top view of the drive control assembly;
FIG. 12 is a structural view of a workpiece clamping tool;
fig. 13 is a structural view of the tool body.
The marks in the drawings are: the device comprises a 1-frame, a 2-driving control assembly, a 3-fixed plate, a 4-guide shaft assembly, a 5-movable slide block assembly, a 6-falling body assembly, a 7-impact seat assembly, an 8-rope, a 9-tool body, a 10-acceleration sensor, an 11-measured piece, a 12-test system terminal, a 201-upper fixed plate, a 202-gear motor, a 203-long shaft, a 204-take-up pulley, a 205-first pulley, a 206-lifting hook, a 207-second pulley, a 208-controller, a 209-abrasion-proof shaft, a 401-lower fixed plate, a 402-guide shaft, a 403-buffer sleeve, a 501-movable slide plate, a 502-bearing seat, a 503-slide shaft, a 504-large pulley, a 505-slide hole, 506-electromagnet, 507-first linear bearings, a 601-falling plate, 602-test piece fixing seat, 603-through holes, a 604-second linear bearings, 605-electromagnet suction plates, 606-impact blocks, 701-base plates, 702-fixing seats, 703-fixed shafts, 704-springs, 705-pressing covers, 706-impact seats, 706-707-adjusting blocks.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not intended to be limiting.
Examples. The inertial switch testing device is composed of a frame 1, a driving control assembly 2 is arranged on the top of the frame 1, a fixed plate 3 is arranged below the driving control assembly 2, a guide shaft assembly 4 is arranged below the fixed plate 3, a movable slide block assembly 5 is arranged on the guide shaft assembly 4, a falling body assembly 6 is arranged below the movable slide block assembly 5, and the falling body assembly 6 is matched with the guide shaft assembly 4; an impact seat assembly 7 corresponding to the falling body assembly 6 is arranged in the middle of the bottom of the frame 1; and the falling body assembly 6 is provided with a tested piece clamping tool.
The drive control assembly 2 comprises an upper fixing plate 201 fixed on the frame 1, a gear motor 202 is arranged above the upper fixing plate 201, a long shaft 203 is arranged at the output end of the gear motor 202, and a take-up pulley 204 is arranged on the long shaft 203; a first pulley 205 and a hanging hook 206 are respectively arranged below the upper fixing plate 201; the frame 1 is also provided with a second pulley 207; the upper fixing plate 201 is also provided with a controller 208 connected with the gear motor 202.
The movable sliding block assembly 5 comprises a movable sliding plate 501, a bearing seat 502 is arranged in the middle of the upper part of the movable sliding plate 501, a pulley shaft 503 is arranged on the bearing seat 502, and a large pulley 504 is arranged on the pulley shaft 503; sliding holes 505 are formed in the two ends of the movable sliding plate 501, and first linear bearings 507 matched with the guide shaft assembly 4 are arranged in the sliding holes 505; the lower surface of the movable slide plate 501 is also provided with an electromagnet 506.
The large pulley 504, the second pulley 207, the first pulley 205, the take-up pulley 204 and the hook 206 are connected by a rope 8.
The falling body assembly 6 comprises a falling plate 601, a test piece fixing seat 602 is arranged in the middle of the upper end face of the falling plate 601, through holes 603 positioned on the falling plate 601 are formed in two sides of the test piece fixing seat 602, and a second linear bearing 604 matched with the guide shaft assembly 4 is arranged in the through holes 603; the upper surface of the falling plate 601 is also provided with an electromagnet suction plate 605 matched with the electromagnet 506; the drop plate 601 is provided with an impact block 606 penetrating its upper and lower surfaces.
The guide shaft assembly 4 comprises a lower fixing plate 401 fixed at the bottom of the frame 1, two guide shafts 402 which are distributed in parallel are arranged above the lower fixing plate 401, and a buffer sleeve 403 is sleeved at the bottom of the guide shafts 402.
The impact seat assembly 7 comprises a base plate 701, a fixed seat 702 is arranged at the upper end of the base plate 701, a spring fixing shaft 703 is arranged in the fixed seat 702, a spring 704 is sleeved outside the spring fixing shaft 703, an impact seat 705 is arranged above the spring 704, a gland 706 is arranged above the impact seat 705, and an adjusting block 707 is further arranged between the gland 706 and the fixed seat 702.
The tested piece clamping tool comprises a tool body 9, wherein an acceleration sensor 10 and a tested piece 11 are arranged in the tool body 9; the tool body 9 and the acceleration sensor 10 are connected with a test system terminal 12 through cables.
The test method of an inertial switch test device includes that impact between a falling body assembly and an impact seat assembly can generate impact overload force on a tested piece mounted on the falling body assembly, an acceleration sensor acquires overload value change conditions of the whole impact process in real time, a test system terminal records an overload curve, and a trigger on state of the tested piece after collision is detected; and the judgment of the trigger threshold value of the tested piece is completed by detecting the test results of the tested piece under different overload values.
The adjustment of the continuous overload value is accomplished by adjusting the height of the drop body assembly and the replacement of the spring by the drive control assembly.
One side of the upper fixing plate is also provided with an anti-abrasion shaft 209 matched with the take-up pulley, and the anti-abrasion shaft is arranged on the bearing with the seat.
The guide shaft is located between the fixed plate and the lower fixed plate.
And a bearing is arranged in the bearing seat.
The tested piece clamping tool comprises a test clamping assembly, wherein an acceleration sensor and an inertial switch to be tested are arranged on the test clamping assembly, and the acceleration sensor and the test clamping assembly are connected with a test system terminal; the test clamping assembly comprises an upper cover assembly and a lower support assembly, the acceleration sensor is fixed on the lower support assembly, and the inertial switch to be tested is located between the upper cover assembly and the lower support assembly.
Preferably, the upper cover assembly comprises a sixth plate, a seventh plate, an eighth plate and a ninth plate which are connected through a first screw and a first nut, wherein the ninth plate is provided with a group of upper mounting holes matched with the inertial switch to be tested, and a pressing device is arranged above each upper mounting hole.
Preferably, the compressing device comprises a compressing adjusting screw, a spring is sleeved on the compressing adjusting screw, and a first gasket and a second gasket are arranged at the upper end and the lower end of the spring; the upper end of the compression adjusting screw is provided with a tightening nut.
Preferably, the lower support assembly comprises a first plate, a second plate, a switch circuit board, a third plate, a fourth plate and a fifth plate which are connected through second screws and second nuts, wherein a lower mounting hole matched with the inertial switch to be tested is formed in the first plate, and an elastic thimble connected with the switch circuit board is arranged below the lower mounting hole.
Preferably, the switch circuit board is also connected with a socket.
Each plate is formed by processing an acrylic plate, and the cost is low.
The assembled lower support assembly is provided with a plurality of holes (namely lower mounting holes) for mounting the test piece, and elastic ejector pins are arranged in the holes and can reliably contact with contacts at the lower end of the tested piece (inertial switch to be tested).
The elastic thimble is welded on the upper side of the switch circuit board to form a detection circuit, and the state of the tested piece is fed back to the terminal of the test system through the socket.
The acceleration sensor is fixed on the lower support assembly through a screw, and detects and feeds back an acceleration value in the test process in real time.
The upper cover component is formed by connecting and combining a sixth plate, a seventh plate and an eighth plate through a first screw and a first nut, and corresponding holes (namely upper mounting holes) are formed in the positions of the combined upper cover component corresponding to the lower support component, so that the tested piece can be completely wrapped and fixed.
The upper mounting hole is internally provided with a pressing device which is formed by combining a tightening nut, a first gasket, a spring, a second gasket and a cylindrical head screw (namely a pressing adjusting screw), so that a tested piece is ensured to reliably contact with the elastic thimble, and the influence of processing assembly errors on a test result is avoided.
When in actual use, the upper cover component and the lower support component are assembled according to the assembly drawing, the measured piece is placed according to the requirement, the acceleration sensor is assembled, and the upper cover component and the lower support component are connected into a whole through the screw and the nut. And connecting the test clamping assembly and the test system terminal by corresponding cables according to requirements. And placing the test clamping assembly into a corresponding test bench. Before testing, the inertial switch is not triggered, and at the moment, the corresponding circuit on the switch circuit board is in an open circuit state. After the test bench is started, the corresponding trigger condition is reached, the inertial switch is triggered, and the corresponding circuit state on the switch circuit is in a closed state. The test system terminal can detect and record the state change information and combine the information fed back by the acceleration sensor to realize the test purpose of the inertial switch triggering function.
The frame is integrally made of aluminum profiles, and is integrally assembled through bolts and T-shaped nuts, so that stable support is provided for the whole device. The drive control assembly is mounted on the frame by bolts. The frame is installed on the lower fixed plate in the guide shaft assembly through the bolt, and the lower fixed plate and the upper fixed plate are connected through the screw to form a structural support piece of the whole device, so that the device is stable and reliable, and finally, the device is firmly installed on a foundation through the foundation. The impact seat component is placed in the through hole of the lower fixing plate, and a gap is formed between the peripheral side of the base plate and the inner wall of the through hole of the lower fixing plate, so that the impact on the integral frame can be counteracted. The falling body component and the movable sliding block component penetrate through the guide shaft component and are matched with each other through the first linear bearing and the second linear bearing respectively, and can slide smoothly along the axial directions of the two guide shafts. The first pulley, the rope, the second pulley, the large pulley, the wire take-up pulley and the lifting hook form a pulley mechanism together, and the movable sliding block assembly can be pulled to move up and down under the driving and traction of the gear motor. The lower side of the movable sliding block component is provided with two electromagnets, and the movable sliding block component can firmly absorb the falling body component when being electrified, so that the initial position of the falling body component is correspondingly adjusted. The test piece and the acceleration sensor are installed on a test piece fixing seat (namely in an installation groove) on the falling body assembly through a clamping tool and move along with the falling body assembly.
The acceleration sensor and a circuit board in the clamping tool are connected with a test terminal, and the test terminal is provided with a deceleration data acquisition analysis module and an inertial switch on-off test module. Switching on a power supply, setting an initial position of the movable slide block assembly, starting a speed reduction motor to enable the long shaft to rotate positively, and enabling the speed reduction motor to pull the movable slide block assembly to descend through a pulley mechanism; the movable sliding block assembly descends to the lowest point along the guide shaft, the speed reducing motor is turned off, two electromagnet suction plates on the upper side of the falling body assembly are respectively sucked by two electromagnets, then the speed reducing motor is started again to enable the long shaft to reversely rotate, and the movable sliding block assembly and the falling body assembly are pulled to move to a designated initial position together by the pulley mechanism; after moving in place, the electromagnet switch is disconnected, the falling body assembly carries the test piece and the acceleration sensor to perform free falling body movement together, the impact block collides with the impact seat to generate impact overload, the spring at the lower side of the impact seat plays a buffering role, and the duration time of the impact overload is prolonged. The acceleration sensor feeds back the acceleration condition in the whole test process to the system, and the system can detect the triggering condition of the inertial switch after collision. The trigger overload threshold and time of the inertial switch can be accurately analyzed after the plurality of groups of data are tested.
Claims (6)
1. An inertial switch testing device, characterized in that: the device comprises a frame (1), wherein a driving control assembly (2) is arranged at the top of the frame (1), a fixed plate (3) is arranged below the driving control assembly (2), a guide shaft assembly (4) is arranged below the fixed plate (3), a movable slide block assembly (5) is arranged on the guide shaft assembly (4), a falling body assembly (6) is arranged below the movable slide block assembly (5), and the falling body assembly (6) is matched with the guide shaft assembly (4); an impact seat assembly (7) corresponding to the falling body assembly (6) is arranged in the middle of the bottom of the frame (1); the falling body assembly (6) is provided with a tested piece clamping tool;
the driving control assembly (2) comprises an upper fixing plate (201) fixed on the frame (1), a speed reducing motor (202) is arranged above the upper fixing plate (201), a long shaft (203) is arranged at the output end of the speed reducing motor (202), and a wire winding wheel (204) is arranged on the long shaft (203); a first pulley (205) and a lifting hook (206) are respectively arranged below the upper fixing plate (201); a second pulley (207) is also arranged on the frame (1); a controller (208) connected with the gear motor (202) is also arranged on the upper fixed plate (201);
the movable sliding block assembly (5) comprises a movable sliding plate (501), a bearing seat (502) is arranged in the middle of the upper part of the movable sliding plate (501), a pulley shaft (503) is arranged on the bearing seat (502), and a large pulley (504) is arranged on the pulley shaft (503); sliding holes (505) matched with the guide shaft assemblies (4) are formed in the two ends of the movable sliding plate (501); an electromagnet (506) is further arranged on the lower surface of the movable sliding plate (501);
the falling body assembly (6) comprises a falling plate (601), a test piece fixing seat (602) is arranged in the middle of the upper end face of the falling plate (601), through holes (603) positioned on the falling plate (601) are formed in two sides of the test piece fixing seat (602), and a second linear bearing (604) is arranged in the through holes (603); the upper surface of the falling plate (601) is also provided with an electromagnet suction plate (605) matched with the electromagnet (506); the lower surface of the falling plate (601) is provided with an impact block (606);
the impact seat assembly (7) comprises a base plate (701), a fixed seat (702) is arranged at the upper end of the base plate (701), a spring fixing shaft (703) is arranged in the fixed seat (702), a spring (704) is sleeved outside the spring fixing shaft (703), an impact seat (705) is arranged above the spring (704), a gland (706) is arranged above the impact seat (705), and an adjusting block (707) is further arranged between the gland (706) and the fixed seat (702).
2. An inertial switch testing device according to claim 1, wherein: the large pulley (504), the second pulley (207), the first pulley (205), the take-up pulley (204) and the lifting hook (206) are connected through a rope (8).
3. An inertial switch testing device according to claim 1, wherein: the guide shaft assembly (4) comprises a lower fixing plate (401) fixed at the bottom of the frame (1), two guide shafts (402) which are distributed in parallel are arranged above the lower fixing plate (401), and a buffer sleeve (403) is sleeved at the bottom of the guide shafts (402).
4. An inertial switch testing device according to claim 1, wherein: the tested piece clamping tool comprises a tool body (9), wherein an acceleration sensor (10) and a tested piece (11) are arranged in the tool body (9); the tool body (9) and the acceleration sensor (10) are connected with a test system terminal (12) through cables.
5. A test method using an inertial switch test unit according to any one of claims 1 to 4, characterized in that: the impact between the falling body component and the impact seat component can generate impact overload force on a tested piece arranged on the falling body component, an acceleration sensor acquires the overload value change condition of the whole impact process in real time, and a test system terminal records an overload curve and detects the trigger on state of the tested piece after the impact; and the judgment of the trigger threshold value of the tested piece is completed by detecting the test results of the tested piece under different overload values.
6. The test method according to claim 5, wherein: the adjustment of the continuous overload value is accomplished by adjusting the height of the drop body assembly and the replacement of the spring by the drive control assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210284662.0A CN114705088B (en) | 2022-03-22 | 2022-03-22 | Inertial switch testing device and testing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210284662.0A CN114705088B (en) | 2022-03-22 | 2022-03-22 | Inertial switch testing device and testing method |
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| CN114705088A CN114705088A (en) | 2022-07-05 |
| CN114705088B true CN114705088B (en) | 2023-08-22 |
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| GB8705995D0 (en) * | 1986-03-14 | 1987-04-15 | Avl Ag | Generating pressure pulse |
| CN106556504A (en) * | 2016-11-21 | 2017-04-05 | 武汉理工大学 | A kind of falling bodies slamming experimental rig |
| CN110307932A (en) * | 2019-07-12 | 2019-10-08 | 中国航空工业集团公司北京长城计量测试技术研究所 | Gas pulses pressure generator and pressure method for generation based on impact switching |
| CN209764375U (en) * | 2019-05-21 | 2019-12-10 | 广东省世通仪器检测服务有限公司 | Falling impact test device |
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2022
- 2022-03-22 CN CN202210284662.0A patent/CN114705088B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8705995D0 (en) * | 1986-03-14 | 1987-04-15 | Avl Ag | Generating pressure pulse |
| CN106556504A (en) * | 2016-11-21 | 2017-04-05 | 武汉理工大学 | A kind of falling bodies slamming experimental rig |
| CN209764375U (en) * | 2019-05-21 | 2019-12-10 | 广东省世通仪器检测服务有限公司 | Falling impact test device |
| CN110307932A (en) * | 2019-07-12 | 2019-10-08 | 中国航空工业集团公司北京长城计量测试技术研究所 | Gas pulses pressure generator and pressure method for generation based on impact switching |
Non-Patent Citations (1)
| Title |
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| 一种具有高抗侧向过载的垂直敏感弹载MEMS惯性开关;任超;武强;付博;刘峰华;戴旭涵;杨卓青;无人系统技术(第005期);第23-30页 * |
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| CN114705088A (en) | 2022-07-05 |
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