CN109489933B - Pneumatic high-speed impact test equipment with adjustable angle - Google Patents
Pneumatic high-speed impact test equipment with adjustable angle Download PDFInfo
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- CN109489933B CN109489933B CN201811594436.2A CN201811594436A CN109489933B CN 109489933 B CN109489933 B CN 109489933B CN 201811594436 A CN201811594436 A CN 201811594436A CN 109489933 B CN109489933 B CN 109489933B
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Abstract
The invention discloses pneumatic high-speed impact test equipment with an adjustable angle, which comprises a base, wherein an impact mechanism is arranged on the base, a clamping mechanism is arranged above the impact mechanism, the clamping mechanism is fixed on the base, and the clamping mechanism is connected with a transmission mechanism. The invention has convenient use and wide application range; the impact position of the projectile on a test object can be adjusted, the pressure in the cavity can be detected through a pressure gauge, the pressure in the cavity is adjusted by controlling the volume of input gas, the impact speed of the projectile is adjusted, and test parameters are changed; the test bench has the advantages of simple and convenient operation, reasonable and stable structure, capability of providing enough impact force for a specific test object on the test bench, capability of effectively testing the characteristics of the test object, and capability of repeated testing and use.
Description
Technical Field
The invention belongs to the technical field of engineering application equipment, and relates to pneumatic high-speed impact test equipment with an adjustable angle.
Background
When dynamic characteristic parameter analysis and vibration mode analysis are carried out on specific product equipment in the industries of vehicles, military equipment, aerospace and the like, an impact test needs to be carried out frequently, and the required impact load is large. The impact loading direction of the load of the existing impact test equipment is usually the horizontal direction, and the loaded impact load is relatively small, so that the larger impact loading can not be met.
Disclosure of Invention
The invention aims to provide an angle-adjustable pneumatic high-speed impact test device which can provide enough impact force for a test object on a test bed so as to obtain the static and dynamic characteristics of the test object.
The technical scheme includes that the pneumatic high-speed impact test equipment with the adjustable angle comprises a base, wherein an impact mechanism is arranged on the base, a clamping mechanism is arranged above the impact mechanism and fixed on the base, and the clamping mechanism is connected with a transmission mechanism.
The present invention is also characterized in that,
a plurality of foundation bolts are uniformly arranged on the edge of the lower surface of the base.
Two parallel guide rails are fixed on the base, a bearing block parallel to the two parallel guide rails is arranged between the two parallel guide rails, a supporting plate A is arranged on the guide rails, a displacement dimension scribing line is arranged on the supporting plate A, the length direction of the displacement dimension scribing line is parallel to the length direction of the guide rails, and the impact mechanism is arranged on the supporting plate A.
Guide rail baffle plates are arranged at two ends of the guide rail, a row of uniformly distributed threaded holes a are formed in the guide rail along the length direction of the guide rail, U-shaped grooves are formed in the support plate A, and the support plate A is fixed on the two parallel guide rails through the threaded holes a and the U-shaped grooves by bolts.
The impact mechanism comprises an air pressure power unit, a gun barrel is arranged on the air pressure power unit, a blocking cover is fixed at the top of the gun barrel, a dustproof plug is arranged on the blocking cover, two speed measuring devices are oppositely arranged on two sides of the dustproof plug, the speed measuring devices are fixed on the gun barrel, a sensor is arranged on the outer wall of the gun barrel, a supporting plate B is arranged in the gun barrel, the supporting plate B is provided with a sealing ring h and a sealing ring i, the sealing ring h and the sealing ring i are both located between the supporting plate B and the inner wall of the gun barrel, the supporting plate B can move along the length direction of the gun barrel, bullets are arranged on the supporting plate B, and a plurality of.
The pneumatic power unit comprises a cavity D, a cavity B and a cavity C which are respectively fixed on the supporting plate A, the cavity D and the cavity C are respectively fixed on two sides of the cavity B, one side of the cavity C, which is far away from the cavity B, is fixedly connected with the cavity A, the interior of the cavity A is separated from the interior of the cavity C through a piston end cover, the interior of the cavity A is communicated with the interior of the cavity C through a one-way valve, the one-way valve is arranged on the piston end cover, the interior of the cavity D is separated from the interior of the cavity B through a top cover, the interior of the cavity B is separated from the interior of the cavity C through a side wall of the cavity;
the lateral wall of the cavity A is provided with an exhaust valve a, the exhaust valve a is arranged opposite to the one-way valve, the top of the cavity A is provided with an air inlet a and a pressure gauge a, the air inlet a and the pressure gauge a are both close to the edge of one side where the exhaust valve a is located, the cavity C is provided with an exhaust valve B, the top of the cavity B is fixed with a cavity cover, the cavity cover is provided with an air inlet B and a pressure gauge B, the cavity D is provided with a sensing exhaust valve, the sensing exhaust valve is connected with a sensor, the gun barrel is fixed to the top of the.
The sealing ring C is arranged at the joint of the cavity C and the cavity A, the piston end cover is provided with a sealing ring D, the sealing ring D is positioned between the piston end cover and the cavity A, handles are arranged on two sides of the cavity B, a sealing ring B is arranged at the contact position of the piston rod and the side wall of the cavity B, a sealing ring a is arranged at the contact position of the cavity B and the top cover, a sealing ring e is arranged at the contact position of the cavity B and the cavity cover, a sealing ring f is arranged at the joint of the gun barrel and the blocking cover, a sealing ring g is arranged between the dust plug and the blocking cover, and a sealing ring j is arranged at the joint.
The clamping mechanism comprises two supports fixed on the base, the two supports are arranged oppositely, rotating shafts are arranged on the two supports and are arranged oppositely, a corner size groove matched with the circumference of the rotating shaft is formed in one support, a transmission mechanism is arranged on the other support, a rectangular groove is formed in the center of each rotating shaft along the axis direction of the rotating shaft, an anti-impact aluminum plate is arranged between the two rotating shafts, two ends of the anti-impact aluminum plate are arranged in the two rectangular grooves respectively, and a plurality of threaded holes b are uniformly formed in the anti-impact aluminum plate.
The transmission mechanism comprises a sealing cover fixed on the support, a hand wheel is arranged on the outer wall of the sealing cover, a small bevel gear is coaxially connected with the hand wheel, the small bevel gear is located inside the sealing cover, a large bevel gear is meshed with the small bevel gear, one end of a worm is fixedly connected with the center of the large bevel gear, bearings are arranged on the worm close to the two ends of the worm and are arranged in bearing blocks, the bearing blocks are fixed on the inner wall of the sealing cover, a rotating shaft connecting seat connected with a rotating shaft is further arranged in the sealing cover, and a worm wheel matched with the worm is fixed.
The support is including fixing the lower carriage on the base, has the upper bracket through the bolt fastening on the lower carriage, and the lower carriage is highly equal with the axis height of pivot with the upper bracket junction, is provided with screw hole c along its direction of height on the upper bracket, is provided with the bolt b that matches with it in the screw hole c and fixes the pivot, and the pivot lateral wall is close to and is provided with screw hole d on base one side, is provided with lower bearing bush, upper bearing bush between pivot and lower carriage, the upper bracket respectively.
The invention has the beneficial effects that:
the pneumatic high-speed impact test equipment with the adjustable angle is convenient to use and wide in application range; the impact position of the projectile on a test object can be adjusted, the pressure in the cavity can be detected through a pressure gauge, the pressure in the cavity is adjusted by controlling the volume of input gas, the impact speed of the projectile is adjusted, and test parameters are changed; the test bench has the advantages of simple and convenient operation, reasonable and stable structure, capability of providing enough impact force for a specific test object on the test bench, capability of effectively testing the characteristics of the test object, and capability of repeated testing and use.
Drawings
FIG. 1 is a schematic structural diagram of an angle-adjustable pneumatic high-speed impact testing apparatus according to the present invention;
FIG. 2 is a cross-sectional view of an impact mechanism in an adjustable angle pneumatic high-speed impact testing apparatus of the present invention;
FIG. 3 is a schematic structural diagram of an impact mechanism in an angle-adjustable pneumatic high-speed impact testing apparatus according to the present invention;
FIG. 4 is a schematic view of a partial structure of a clamping mechanism in the pneumatic high-speed impact testing apparatus with an adjustable angle according to the present invention;
FIG. 5 is a schematic structural diagram of a transmission mechanism in the pneumatic high-speed impact testing apparatus with an adjustable angle according to the present invention;
FIG. 6 is a schematic structural diagram of a bottom view angle of a rotating shaft in the pneumatic high-speed impact testing apparatus with an adjustable angle of the present invention.
In the figure, 1, a base, 2, an anchor bolt, 3, a guide rail baffle, 4, a threaded hole a, 5, a guide rail, 6, a displacement dimension reticle, 7, a support plate A, 8, a U-shaped groove, 9, a bearing block, 10, a lower support, 11, a bolt a, 12, an upper support, 13, a threaded hole C, 14, a rotating shaft, 15, an impact-resistant aluminum plate, 16, a threaded hole B, 17, a sealing cover, 18, a hand wheel, 19, an induction exhaust valve, 20, a cavity D, 21, an upper bearing bush, 22, a sealing ring a, 23, a top cover, 24, a piston rod, 25, a lower bearing bush, 26, a cavity B, 27, a sealing ring B, 28, a threaded hole D, 29, a cavity C, 30, a sealing ring C, 31, a sealing ring D, 32, a piston end cover, 33, a one-way valve, 34, a cavity A, 35, a rectangular groove, 36, an exhaust valve a, 37, an air inlet a, 41. the automatic measuring device comprises a cavity cover, 42 air inlets B, 43 pressure gauges B, 44 gun barrels, 45 supporting plates B, 46 speed measuring devices, 47 sealing rings f, 48 sealing rings g, 49 projectiles, 50 dust plugs, 51 blocking covers, 52 sensors, 53 air holes, 54 sealing rings h, 55 sealing rings i, 56 sealing rings j, 57 handles, 58 small bevel gears, 59 large bevel gears, 60 bearings, 61 worms, 62 rotating shaft connecting seats, 63 worm gears, 64 bearing seats, 65 rotating angle size graduations and 66 bolts B.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to pneumatic high-speed impact test equipment with an adjustable angle, which comprises a base 1, wherein a plurality of foundation bolts 2 are uniformly arranged on the edge of the lower surface of the base 1, an impact mechanism is arranged on the base 1, a clamping mechanism is arranged above the impact mechanism, the clamping mechanism is fixed on the base 1, and the clamping mechanism is connected with a transmission mechanism.
Be fixed with two parallel guide 5 on the base 1, be provided with between two parallel guide 5 with it parallel bearing block 9, be provided with layer board A7 on the guide rail 5, guide rail 5 both ends all are provided with guide rail baffle 3, be provided with one row of evenly distributed's screw hole a4 along its length direction on the guide rail 5, U type groove 8 has been seted up on layer board A7, the bolt is fixed layer board A7 on two parallel guide 5 through screw hole a4 and U type groove 8, be provided with displacement size groove 6 on layer board A7, the length direction of displacement size groove 6 is parallel with the length direction of guide rail 5, impact mechanism sets up on layer board A7.
As shown in fig. 2 and 3, the impact mechanism includes a pneumatic power unit, a barrel 44 is arranged on the pneumatic power unit, a blocking cover 51 is fixed on the top of the barrel 44, a dust plug 50 is arranged on the blocking cover 51, two speed measuring devices 46 are oppositely arranged on two sides of the dust plug 50, the speed measuring devices 46 are fixed on the barrel 44, a sensor 52 is arranged on the outer wall of the barrel 44, a supporting plate B45 is arranged in the barrel 44, a sealing ring h54 and a sealing ring i55 are arranged on the supporting plate B45, the sealing ring h54 and the sealing ring i55 are both located between the supporting plate B45 and the inner wall of the barrel 44, the supporting plate B45 can move along the length direction of the barrel 44, a projectile 49 is arranged on the supporting plate B45, and a plurality of air holes 53 are uniformly arranged on the circumference of.
The pneumatic power unit comprises a cavity D20, a cavity B26 and a cavity C29 which are respectively fixed on a supporting plate A7, the cavity D20 and the cavity C29 are respectively fixed on two sides of a cavity B26, one side of the cavity C29, which is far away from the cavity B26, is fixedly connected with a cavity A34, the interior of the cavity A34 is separated from the interior of the cavity C29 through a piston end cover 32, the interior of the cavity A34 is communicated with the interior of the cavity C29 through a check valve 33, the check valve 33 is arranged on the piston end cover 32, the interior of the cavity D20 is separated from the interior of the cavity B26 through a top cover 23, the interior of the cavity B is separated from the interior of the cavity C29 through a cavity B26 side wall, the top cover 23 is connected with one.
An exhaust valve a36 is arranged on the side wall of the cavity A34, an exhaust valve a36 is arranged opposite to the one-way valve 33, an air inlet a37 and a pressure gauge a38 are arranged at the top of the cavity A34, the air inlet a37 and the pressure gauge a38 are both close to the edge of one side where the exhaust valve a36 is located, an exhaust valve B39 is arranged on the cavity C29, a cavity cover 41 is fixed to the top of the cavity B26, an air inlet B42 and a pressure gauge B43 are arranged on the cavity cover 41, an induction exhaust valve 19 is arranged on the cavity D20, the induction exhaust valve 19 is connected with the sensor 52, the gun barrel 44 is fixed to the top of the cavity D20.
A sealing ring C30 is arranged at the joint of the cavity C29 and the cavity A34, a sealing ring D31 is arranged on the piston end cover 32, a sealing ring D31 is positioned between the piston end cover 32 and the cavity A34, handles 57 are arranged on both sides of the cavity B26, a sealing ring B27 is arranged at the contact position of the piston rod 24 and the side wall of the cavity B26, a sealing ring a22 is arranged at the contact position of the cavity B26 and the top cover 23, a sealing ring e40 is arranged at the contact position of the cavity B26 and the cavity cover 41, a sealing ring f47 is arranged at the joint of the gun barrel 44 and the blocking cover 51, a sealing ring g48 is arranged on the dust plug 50, a sealing ring g48 is positioned between the dust plug 50 and the blocking cover 51, and a sealing.
As shown in fig. 4, the clamping mechanism includes two brackets fixed on the base 1, the two brackets are arranged oppositely, the two brackets are both provided with rotating shafts 14, the two rotating shafts 14 are arranged oppositely, one bracket is provided with a corner dimension reticle 65 adapted to the circumference of the rotating shaft 14, the other bracket is provided with a transmission mechanism, the center of the rotating shaft 14 is provided with a rectangular groove 35 along the axis direction thereof, an anti-impact aluminum plate 15 is arranged between the two rotating shafts 14, two ends of the anti-impact aluminum plate 15 are respectively arranged in the two rectangular grooves 35, and the anti-impact aluminum plate 15 is uniformly provided with a plurality of threaded holes b 16.
As shown in fig. 5, the transmission mechanism includes a cover 17 fixed on the bracket, a hand wheel 18 is disposed on an outer wall of the cover 17, the hand wheel 18 is coaxially connected with a small bevel gear 58, the small bevel gear 58 is located inside the cover 17, the small bevel gear 58 is meshed with a large bevel gear 59, one end of a worm 61 is fixedly connected to the center of the large bevel gear 59, bearings 60 are disposed on the worm 61 near two ends of the worm, the bearings 60 are disposed in bearing seats 64, the bearing seats 64 are fixed on an inner wall of the cover 17, a rotating shaft connecting seat 62 connected with the rotating shaft 14 is further disposed in the cover 17, and a worm wheel 63 matched with the worm 61 is fixed on the rotating shaft connecting.
The support comprises a lower support 10 fixed on a base 1, an upper support 12 is fixed on the lower support 10 through a bolt a11, the height of the joint of the lower support 10 and the upper support 12 is equal to the height of the axis of a rotating shaft 14, a threaded hole c13 is formed in the upper support 12 along the height direction of the upper support, a bolt b66 matched with the threaded hole c 3526 is arranged in the threaded hole c13 to fix the rotating shaft 14, as shown in fig. 6, four threaded holes d28 are formed in one side, close to the base, of the side wall of the rotating shaft 14, and a lower bearing bush 25 and an upper bearing bush 21 are respectively arranged between the rotating shaft 14 and the lower.
The main parts of the pneumatic high-speed impact test equipment with the adjustable angle have the following functions:
the anchor bolt 2 prevents that the device that causes is not hard up, dangerous operation and experimental error because base 1 is fixed improper at the impact process of experiment.
The guide rail 5 enables the supporting plate A7 to move only along the direction of the guide rail 5, the threaded hole a4 is used for fixing the impact mechanism, and the displacement dimension scale line 6 is used for controlling the transverse moving distance, and the minimum scale is millimeter.
The guide fence 3 is used to limit the moving range of the pallet a7 in the direction of the guide rail 5.
The U-shaped groove 8 is used for controlling the small-distance movement of the supporting plate A7 and fixing the supporting plate A7.
The bearing block 9 is used for bearing the force of the impact mechanism in the impact process and preventing the supporting plate A7 from shaking back and forth.
The sensing exhaust valve 19 is used for releasing the gas in the gun barrel 44, the cavity D20 and the cavity B26 and reducing the pressure after the sensor 52 senses the shot 49 to be shot.
The top cover 23, the piston rod 24 and the piston end cover 32 are used for guiding the flow of gas.
The check valve 33 is used to control the flow of air from chamber a34 to chamber C29.
Vent valves a36 and b39 were used to vent the chamber after the test.
The gas inlet a37 and the gas inlet b42 are used to introduce gas into the impact mechanism.
The pressure gauge a38 and the pressure gauge B43 are respectively used for detecting the air pressure inside the cavity A34 and the air pressure inside the cavity B26, and the pressure in the cavity is adjusted by controlling the volume of input air so as to control the speed of the shot 49.
Pallet B45 is used to transfer velocity to projectile 49 and projectile 49 is used to provide the impact force required for the test.
The air hole 53 is used for discharging the air in the gun barrel 44 after the shot 49 is ejected, so as to reduce the pressure.
The flap 51 serves to prevent the tray B45 from ejecting.
The dust plug 50 is removed during the test, and is disposed above the shield cover 51 when the test is not performed, so that impurities such as dust are prevented from entering the device to influence the test.
The handle 57 is used to move the impact mechanism in the direction of the guide rail 5 to adjust the position.
The lower bracket 10 is matched with the upper bracket 12 to fix a rotating shaft 14, and the rotating shaft 14 is used for fixing an impact-resistant aluminum plate 15 and adjusting the rotating angle of the impact-resistant aluminum plate.
The screw hole c13 and the bolt b66 are used for pressing the upper bearing bush 21, and the screw hole d28 is used for fixing the anti-impact aluminum plate 15 in the rectangular groove 35 of the rotating shaft 14 by tightening the bolt, so that experimental errors caused by looseness of the anti-impact aluminum plate 15 are prevented.
The rectangular groove 35 is used for placing the impact-resistant aluminum plate 15, wherein the size of the rectangular groove 35 is slightly larger than that of the impact-resistant aluminum plate 15, and the rectangular groove is in clearance fit with the impact-resistant aluminum plate 15.
The screw holes b16 are used to fix an object to be impacted to the impact-resistant aluminum plate 15.
The sealing cover 17, the small bevel gear 58, the large bevel gear 59, the worm 61, the rotating shaft connecting seat 62 and the worm wheel 63 which are included in the transmission mechanism are used for transmitting the rotation of the hand wheel 18 to the rotating shaft 14 and driving the anti-impact aluminum plate 15 to rotate, the hand wheel 18 controls the rotation of the anti-impact aluminum plate 15, wherein the modulus of the small bevel gear 58 and the modulus of the large bevel gear 59 are 2, the number of teeth is 17 and 34 respectively, the modulus of the worm 61 and the modulus of the worm wheel 63 are 4, the number of teeth is 1 and 60 respectively, and the rotating shaft 14 and the anti-impact aluminum plate 15 rotate 3 degrees each time the; the rotation is designed to prevent the impact mechanism from being damaged by the rebounding of the shot 49, the rotation direction is opposite to the operation table, and the angle range is optimally controlled to be 10-15 degrees.
The corner dimension score line 65 is used to identify the angle of rotation of the impact resistant aluminum plate 15, the minimum scale being degrees.
The threaded hole c13, the bolt b66, the upper bearing bush 21 and the lower bearing bush 25 are all used for fixing the rotating shaft 14.
When the pneumatic high-speed impact test equipment with the adjustable angle is used, the working process is as follows:
firstly, the anti-impact aluminum plate 15 is inserted into the rectangular groove (35) in the rotating shaft 14, the bolts are respectively fastened in the threaded holes d28 of the two rotating shafts 14, the anti-impact aluminum plate 15 is tightly jacked in the rectangular groove 35 of the rotating shaft 14 for fixing, then the hand wheel 18 is rotated to drive the anti-impact aluminum plate 15 to rotate, after the anti-impact aluminum plate is rotated to a proper angle, the bolts b66 on all the upper brackets 12 are fastened, and at the moment, the angle of the rotating shaft 14 is not changed any more.
The object to be struck is fixed to the impact-resistant aluminum plate 15 through the screw holes b16 by bolts, the pallet a7 is moved laterally so that the barrel 44 is aligned with the middle position of the impact-resistant aluminum plate 15, and the pallet a7 is fixed to the guide rail 5 through the screw holes a4 and the U-shaped groove 8 by bolts.
The air is introduced into the cavity A34 through the air inlet a37, the air pressure in the cavity A34 is increased, the air flows into the cavity C29 through the one-way valve 33, the air is introduced into the cavity B26 through the air inlet B42, the pressure in the cavity B26 is increased, when the pressure in the cavity B26 reaches the standard, the exhaust valve a36 is opened, the pressure in the cavity C29 is far larger than that in the cavity A34, the top cover 23, the piston rod 24 and the piston end cover 32 move towards the direction from the cavity C29 to the cavity A34, the air in the cavity B26 flows into the cavity D20 and further flows into the gun barrel 44, the supporting plate B45 moves upwards, and the shot 49 moves upwards and is ejected from the gun barrel 44, so that the impact on an impact object is completed.
After the projectile 49 is ejected, the supporting plate B45 is positioned at the top end of the gun barrel 44, and the gas extruded in the gun barrel 44 is exhausted through the air hole 53; sensor 52 senses ejection of projectile 49 and controls sensing the opening of vent valve 19 to vent gas from chamber D20. Simultaneously opening exhaust valve a36 and exhaust valve b39 releases gas from cavity a34 and cavity C29.
All bolts for fixing the supporting plate A7 on the guide rail 5 are loosened, and then the supporting plate A7 and the impact mechanism are transversely adjusted through the handle 57, so that the impact position is changed; the pressure inside the cavity A34 and the pressure inside the cavity B26 can be monitored by the pressure gauge a38 and the pressure gauge B43, and the impact speed of the shot 49 is controlled within a certain range, so that impact tests can be repeatedly carried out at different impact positions or different impact speeds.
When the impact object needs to be replaced, the impact object which has completed the impact test is removed from the impact-resistant aluminum plate 15, and a new impacted object is fixed on the impact-resistant aluminum plate 15 again, thereby completing the impact.
Through the mode, the angle-adjustable pneumatic high-speed impact test equipment can adjust the position of the impact mechanism through the handle 57, can control the impact speed of the shot through the pressure gauge, is simple to operate, has a reasonable and stable structure, can effectively test the characteristics of a test object, and can be repeatedly tested and used.
Claims (6)
1. The pneumatic high-speed impact test equipment with the adjustable angle is characterized by comprising a base (1), wherein an impact mechanism is arranged on the base (1), two parallel guide rails (5) are fixed on the base (1), guide rail baffle plates (3) are arranged at two ends of each guide rail (5), a row of uniformly distributed threaded holes a (4) are formed in each guide rail (5) along the length direction of the guide rail, a bearing block (9) parallel to each parallel guide rail is arranged between the two parallel guide rails (5), a supporting plate A (7) is arranged on each guide rail (5), a displacement size scribed line (6) is arranged on each supporting plate A (7), the length direction of the displacement size scribed line (6) is parallel to the length direction of each guide rail (5), a U-shaped groove (8) is formed in each supporting plate A (7), and each supporting plate A (7) is fixed on the two parallel guide rails (5) through the threaded holes a (4) and the U-shaped grooves (8) by bolts, the impact mechanism is arranged on the supporting plate A (7), a clamping mechanism is arranged above the impact mechanism, the clamping mechanism is fixed on the base (1), and the clamping mechanism is connected with a transmission mechanism;
the impact mechanism comprises a pneumatic power unit, a gun barrel (44) is arranged on the pneumatic power unit, a blocking cover (51) is fixed at the top of the gun barrel (44), a dustproof plug (50) is arranged on the blocking cover (51), two speed measuring devices (46) are oppositely arranged on two sides of the dustproof plug (50), the speed measuring devices (46) are fixed on the gun barrel (44), a sensor (52) is arranged on the outer wall of the gun barrel (44), a supporting plate B (45) is arranged in the gun barrel (44), the supporting plate B (45) is provided with a sealing ring h (54) and a sealing ring i (55), the sealing ring h (54) and the sealing ring i (55) are both positioned between the supporting plate B (45) and the inner wall of the gun barrel (44), the supporting plate B (45) can move along the length direction of the gun barrel (44), the supporting plate B (45) is provided with a projectile (49), a plurality of air holes (53) are uniformly formed in the circumference of the side wall of the gun barrel (44) close to the top of the gun barrel;
the pneumatic power unit comprises a cavity D (20), a cavity B (26) and a cavity C (29) which are respectively fixed on a supporting plate A (7), the cavity D (20) and the cavity C (29) are respectively fixed on two sides of the cavity B (26), one side of the cavity B (26) is far away from the cavity C (29) and is fixedly connected with a cavity A (34), the inside of the cavity A (34) is separated from the inside of the cavity C (29) through a piston end cover (32), the inside of the cavity A (34) is communicated with the inside of the cavity C (29) through a check valve (33), the check valve (33) is arranged on the piston end cover (32), the inside of the cavity D (20) is separated from the inside of the cavity B (26) through a top cover (23), the inside of the cavity B is separated from the inside of the cavity C (29) through a cavity B (26) side wall, the top cover (23) is connected with one end of, the piston rod (24) penetrates through the side wall of the cavity B (26) and is connected with a piston end cover (32);
the cavity A (34) lateral wall is provided with discharge valve a (36), discharge valve a (36) set up with check valve (33) relatively, cavity A (34) top is provided with air inlet a (37) and manometer a (38), air inlet a (37) and manometer a (38) all are close to the edge of discharge valve a (36) place one side, be provided with discharge valve B (39) on cavity C (29), cavity B (26) top is fixed with chamber lid (41), be provided with air inlet B (42) and manometer B (43) on chamber lid (41), cavity D (20) are provided with response discharge valve (19), response discharge valve (19) are connected with sensor (52), barrel (44) are fixed at cavity D (20) top, cavity and barrel (44) inside intercommunication in cavity D (20).
2. The pneumatic high-speed impact test equipment with the adjustable angle of claim 1, characterized in that a plurality of foundation bolts (2) are uniformly arranged on the edge of the lower surface of the base (1).
3. The pneumatic high-speed impact test equipment with the adjustable angle of claim 1, wherein a sealing ring C (30) is arranged at the joint of the cavity C (29) and the cavity A (34), a sealing ring d (31) is arranged on the piston end cover (32), the sealing ring d (31) is positioned between the piston end cover (32) and the cavity A (34), handles (57) are arranged on both sides of the cavity B (26), a sealing ring B (27) is arranged at the contact position of the piston rod (24) and the side wall of the cavity B (26), a sealing ring a (22) is arranged at the contact position of the cavity B (26) and the top cover (23), a sealing ring e (40) is arranged at the contact position of the cavity B (26) and the cavity cover (41), a sealing ring f (47) is arranged at the joint of the gun barrel (44) and the blocking cover (51), and a sealing ring g (48) is arranged on the dustproof plug (50), the sealing ring g (48) is positioned between the dustproof plug (50) and the blocking cover (51), and a sealing ring j (56) is arranged at the joint of the gun barrel (44) and the cavity D (20).
4. The pneumatic high-speed impact testing equipment with the adjustable angle of claim 1, wherein the clamping mechanism comprises two supports fixed on a base (1), the two supports are oppositely arranged, each of the two supports is provided with a rotating shaft (14), the two rotating shafts (14) are oppositely arranged, one support is provided with a corner size groove (65) corresponding to the circumference of the rotating shaft (14), the other support is provided with a transmission mechanism, the center of the rotating shaft (14) is provided with a rectangular groove (35) along the axial direction of the rotating shaft, an anti-impact aluminum plate (15) is arranged between the two rotating shafts (14), two ends of the anti-impact aluminum plate (15) are respectively arranged in the two rectangular grooves (35), and the anti-impact aluminum plate (15) is uniformly provided with a plurality of threaded holes b (16).
5. The pneumatic high-speed impact test device with adjustable angle of claim 4, the transmission mechanism comprises a sealing cover (17) fixed on the bracket, a hand wheel (18) is arranged on the outer wall of the sealing cover (17), the hand wheel (18) is coaxially connected with a small bevel gear (58), the small bevel gear (58) is positioned in the sealing cover (17), the small bevel gear (58) is engaged with a large bevel gear (59), the center of the large bevel gear (59) is fixedly connected with one end of a worm (61), bearings (60) are arranged on the worm (61) near the two ends of the worm, the bearings (60) are arranged in the bearing seats (64), the bearing seat (64) is fixed on the inner wall of the sealing cover (17), a rotating shaft connecting seat (62) connected with the rotating shaft (14) is also arranged in the sealing cover (17), and a worm wheel (63) matched with the worm (61) is fixed on the rotating shaft connecting seat (62).
6. The pneumatic high-speed impact test equipment with the adjustable angle according to claim 4, wherein the support comprises a lower support (10) fixed on a base (1), an upper support (12) is fixed on the lower support (10) through a bolt a (11), the height of the joint of the lower support (10) and the upper support (12) is equal to the axial height of a rotating shaft (14), a threaded hole c (13) is formed in the upper support (12) along the height direction of the upper support, a bolt b (66) matched with the threaded hole c (13) is arranged in the threaded hole c (13) to fix the rotating shaft (14), a threaded hole d (28) is formed in the side wall of the rotating shaft (14) close to one side of the base (1), and a lower bearing bush (25) and an upper bearing bush (21) are respectively arranged between the rotating shaft (14) and the lower support (10) and the upper support (12).
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| CN201811594436.2A CN109489933B (en) | 2018-12-25 | 2018-12-25 | Pneumatic high-speed impact test equipment with adjustable angle |
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| CN201811594436.2A CN109489933B (en) | 2018-12-25 | 2018-12-25 | Pneumatic high-speed impact test equipment with adjustable angle |
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| CN109489933B true CN109489933B (en) | 2021-01-15 |
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| JP2006047131A (en) * | 2004-08-05 | 2006-02-16 | Canon Inc | Hail impact testing apparatus and method |
| KR101112585B1 (en) * | 2010-05-11 | 2012-03-02 | 국방과학연구소 | Drop Weight Low-Velocity Impact Test Equipment |
| CN102126563B (en) * | 2011-01-21 | 2012-12-26 | 南京航空航天大学 | Aircraft landing gear drop lifting force simulating device |
| RU136404U1 (en) * | 2013-09-19 | 2014-01-10 | Открытое акционерное общество МТЗ ТРАНСМАШ | PRESSURE VALVE VALVE |
| CN204188363U (en) * | 2014-10-10 | 2015-03-04 | 北京强度环境研究所 | A kind of combustible gas loads dynamic impact test device |
| CN104266814B (en) * | 2014-10-17 | 2017-01-11 | 苏州东菱振动试验仪器有限公司 | Gas gun type impact response spectrum testing machine |
| CN108398223B (en) * | 2018-01-17 | 2021-02-12 | 西安理工大学 | Heavy-load vertical impact test equipment |
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