CN106338411A - Dual-overload environment force loading simulator - Google Patents

Abstract

The invention relates to an overload environment simulation test device, in particular to a double overload environment force loading simulation device. The invention solves the problems of inconvenient use, large volume, high cost, large vibration during the test and limited application range of the existing overload environment simulation test device. A dual-overload environment force loading simulation device, including a flywheel energy storage part, an impact overload environment force load part, and a rotating centrifugal overload environment force load part; the flywheel energy storage part includes a cylinder, a main shaft, an electromagnetic clutch, and a shaft coupling , a motor, a conductive slip ring; the impact overload environment force loading part includes an annular upper turntable, an annular lower turntable, an electromagnet, a collision block, and a position sensor. The invention relatively realistically simulates the continuous loading process of the impact overload of the key parts of the aircraft and the environmental force of the rotating centrifugal overload, and is suitable for the fields of performance test of the aircraft, impact test of materials, calibration of acceleration sensors and the like.

Description

A double overload environment force loading simulation device

technical field

The invention relates to an overload environment simulation test device, in particular to a double overload environment force loading simulation device.

Background technique

The overload environment simulation test device is mainly used in the performance test of aircraft, the impact test of materials, the calibration of acceleration sensors and other fields. Under the existing technical conditions, the overload environment simulation test device mainly includes the following two types: one device uses an air cannon or a vacuum cannon to launch projectiles, and then combines the rotating cylinder to realize the dual environment simulation of recoil and rotation. The problem that this kind device exists is: first, air cannon and vacuum cannon belong to special equipment, need special qualification and approval during use, thus cause inconvenient to use. Second, air cannons and vacuum cannons have large volumes, high costs, and large vibrations during testing. Another kind of device is made up of motor, large rotating plate, small rotating plate, torsion spring, lever, starting device and so on. The problem with this kind of device is: the overload acceleration is low, which leads to a limited range of application (not suitable for inertial components in high overload environments such as artillery). Based on this, it is necessary to invent a brand-new overload environment simulation test device to solve the problems of inconvenient use, large volume, high cost, large vibration during the test, and limited application range of the existing overload environment simulation test device.

Contents of the invention

In order to solve the problems of inconvenient use, large volume, high cost, large vibration during the test and limited application range of the existing overload environment simulation test device, the present invention provides a double overload environment force loading simulation device.

The present invention is realized by adopting the following technical solutions:

A dual overload environment force loading simulation device, including a flywheel energy storage part, an impact overload environment force loading part, and a rotating centrifugal overload environment force loading part;

The energy storage part of the flywheel includes a cylinder, a main rotating shaft, an electromagnetic clutch, a shaft coupling, a motor, and a conductive slip ring; the lower part of the main rotating shaft is rotatably assembled in the upper inner cavity of the cylinder; the motor is located in the lower inner cavity of the cylinder, and The output shaft of the motor is connected to the lower end of the main shaft through a coupling and an electromagnetic clutch in turn; the stator of the conductive slip ring is fixedly assembled in the upper inner cavity of the cylinder; the rotor of the conductive slip ring is fixedly assembled in the lower part of the main shaft;

The impact overload environment force loading part includes an annular upper turntable, an annular lower turntable, an electromagnet, a collision block, and a position sensor; both the annular upper turntable and the annular lower turntable are fixedly assembled on the upper part of the main shaft, And the annular lower turntable is located below the annular upper turntable; the lower surface of the annular upper turntable is fixed with an even number of upper ribs; each pair of upper ribs and the annular upper turntable together form a radial upward slide grooves, and each radial upper chute is arranged equidistantly along the circumferential direction; an even number of pairs of lower ribs are fixed on the upper surface of the circular lower turntable, and the number of lower ribs is consistent with the number of upper ribs; each pair of lower ribs Together with the annular lower turntable, they form a radial slide groove, and each radial slide groove is arranged equidistantly along the circumference; each radial upper slide groove is buckled with each radial slide groove to form an even number of radial slide pipes, And the outer end nozzle of each radial slide tube is provided with a limit flange; the number of electromagnets is two; the two electromagnets are respectively installed in the inner end nozzles of two of the radial slide tubes, and two The position of the electromagnet is opposite; the input ends of the two electromagnets are connected to the rotor of the conductive slip ring; the number of collision blocks is two; the two collision blocks are respectively slidably fitted in the inner cavity of two radial slide tubes, and The tails of the two collision blocks are detachably adsorbed on the two electromagnets; the heads of the two collision blocks are thinner than the tails; the position sensor is installed above the upper end surface of the main shaft, and the transmission end of the position sensor is connected to the conductive slide Rotor connection of the ring;

The rotating centrifugal overload environment force loading part includes an outer column, an inner column, a circular groove rail, a spiral groove rail, and a trolley; the number of the outer columns is several, and each outer column is arranged equidistantly on the cylinder along the circumferential direction The number of inner columns is several, and each inner column is equidistantly arranged between each outer column and the cylinder along the circumferential direction; the notch of the circular groove is inward, and the circular groove is supported and fixed On the upper end surface of each outer column; the upper edge of the notch of the circular groove is flush with the lower surface of the circular upper turntable; the lower edge of the notch of the circular groove is flush with the upper surface of the circular lower turntable ; The notch of the spiral groove is inward, and the spiral groove is supported and fixed on the upper end surface of each inner column; the upper edge of the spiral groove is flush with the lower surface of the circular upper turntable; the spiral groove The lower edge of the notch is flush with the upper surface of the ring-shaped lower turntable; there are gaps between the spiral groove track and the ring-shaped upper turntable, and between the spiral groove track and the ring-shaped lower turntable; the spiral groove There is a gap between the head end of the rail and the circular groove; the end of the spiral groove is in contact with the circular groove; and the trolley is slidably assembled in the inner cavity of the spiral groove.

When working, the input end of the electromagnetic clutch is connected to an external computer through an external brush, and the stator of the conductive slip ring is connected to an external computer. The external computer remotely controls the motor, electromagnetic clutch, two electromagnets, and a position sensor through software. The specific working process is as follows: 1. Flywheel energy storage: the external computer remotely controls the electromagnetic clutch to close, and then starts the motor. The motor drives the main shaft through the coupling and electromagnetic clutch to rotate at a constant speed at a set speed, and the main shaft drives the circular ring. The upper turntable and the ring-shaped lower turntable rotate at a constant speed at a set speed. At this time, under the remote control of the external computer, the two electromagnets are in the energized state, the two collision blocks are adsorbed on the two electromagnets, and the trolley located in the inner cavity of the spiral groove rail is in a static state. 2. Impact overload environment force loading: the external computer remotely controls the position sensor to start. When the position sensor detects that the ring-shaped upper turntable and the ring-shaped lower turntable rotate to the specified position, the external computer remotely controls the electromagnetic clutch to disconnect, and at the same time remotely controls one of the electromagnets to cut off the power, so that on the one hand, the main shaft It is separated from the motor (to prevent the motor from being damaged by a huge collision), and on the other hand, the collision block adsorbed on the electromagnet is thrown out along the radial slide tube under the action of centrifugal force. Under the limit effect of the limit fold, the tail of the collision block stays in the radial slide tube, and the head extends into the inner cavity of the spiral groove rail, and collides with the trolley at high speed, thereby realizing the force loading of the impact overload environment. 3. Rotating centrifugal overload environment force loading: Under the high-speed collision of the collision block, the trolley performs inertial motion along the spiral groove, and changes orbit at the end of the spiral groove to the circular groove, and then moves along the ring The inertial motion of the shaped groove rail, thereby realizing the force loading of the rotating centrifugal overload environment.

Based on the above process, compared with the existing overload environment simulation test device, a double overload environment force loading simulation device according to the present invention adopts a new structure to realize double overload environment force (shock overload environment force and rotation centrifugal overload environment force) Force) continuous loading, which has the following advantages: First, each component of the present invention does not belong to special equipment, and does not require special qualifications and approvals when used, so it is more convenient to use. Second, the volume of the present invention is smaller, the cost is lower, and the vibration during the test is smaller. Its three, the overload acceleration of the present invention is higher, so its scope of application is wider (being fully applicable to the inertial parts of the high overload environment such as artillery).

The invention has reasonable structure and ingenious design, and effectively solves the problems of inconvenient use, large volume, high cost, large vibration during the test, and limited application range of the existing overload environment simulation test device, and it simulates the key parts of the aircraft more realistically The continuous loading process of impact overload and rotational centrifugal overload environmental force is suitable for the performance test of aircraft, the impact test of materials, the calibration of acceleration sensors and other fields.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a structural schematic view of the circular groove track and the spiral groove track in the present invention.

In the figure: 11-cylinder, 12-main shaft, 13-electromagnetic clutch, 14-coupling, 15-motor, 16-conductive slip ring, 17-threading hole, 21-circular upper turntable, 22-circle Ring-shaped lower turntable, 23-electromagnet, 24-collision block, 25-position sensor, 26-limit flange, 31-outer column, 32-inner column, 33-circular groove rail, 34-spiral groove rail, 35-car, 41-chassis.

detailed description

A dual overload environment force loading simulation device, including a flywheel energy storage part, an impact overload environment force loading part, and a rotating centrifugal overload environment force loading part;

The energy storage part of the flywheel includes a cylinder 11, a main shaft 12, an electromagnetic clutch 13, a coupling 14, a motor 15, and a conductive slip ring 16; It is located in the lower inner cavity of the cylinder 11, and the output shaft of the motor 15 is connected to the lower end of the main shaft 12 through the coupling 14 and the electromagnetic clutch 13 in turn; the stator of the conductive slip ring 16 is fixedly assembled in the upper inner cavity of the cylinder 11; The rotor of the conductive slip ring 16 is fixedly assembled on the lower part of the main shaft 12;

The impact overload environment force loading part includes an annular upper turntable 21, an annular lower turntable 22, an electromagnet 23, a collision block 24, and a position sensor 25; the annular upper turntable 21 and the annular lower turntable 22 are all fixed Assembled on the top of main rotating shaft 12, and annular lower turntable 22 is positioned at the below of annular upper turntable 21; The lower disc surface of annular upper turntable 21 is fixed with even number pair of ribs; The annular upper turntable 21 together forms a radially upper chute, and each radially upper chute is arranged equidistantly along the circumferential direction; the upper surface of the annular lower turntable 22 is fixed with even pairs of lower ribs, and the number of lower ribs Consistent with the number of upper ribs; each pair of lower ribs and the circular lower turntable 22 jointly form a radial glide groove, and each radial glide groove is arranged equidistantly along the circumferential direction; each radial upper chute is connected with each The radial sliding grooves are buckled together to form an even number of radial slide tubes, and the outer end nozzle of each radial slide tube is provided with a limit flange 26; the number of electromagnets 23 is two; the two electromagnets 23 are respectively installed In the inner end nozzles of two radial slide tubes, and two electromagnets 23 positions are opposite; The input ends of two electromagnets 23 are all connected with the rotor of conductive slip ring 16; The number of collision block 24 is two ; Two collision blocks 24 are respectively slidably fitted in the inner chambers of two radial slide pipes, and the tail ends of the two collision blocks 24 are detachably adsorbed on the two electromagnets 23; the heads of the two collision blocks 24 are thinner than the tail; the position sensor 25 is installed above the upper end surface of the main shaft 12, and the transmission end of the position sensor 25 is connected with the rotor of the conductive slip ring 16;

The rotating centrifugal overload environment force loading part includes an outer column 31, an inner column 32, a circular groove rail 33, a spiral groove rail 34, and a trolley 35; the number of the outer columns 31 is several, and each outer column 31 Arranged equidistantly on the outside of the cylinder 11; the number of inner columns 32 is several, and each inner column 32 is arranged equidistantly between each outer column 31 and the cylinder 11 along the circumferential direction; the circular groove rail 33 The notch is inward, and the annular groove rail 33 is supported and fixed on the upper end surface of each outer column 31; the upper edge of the notch of the annular groove rail 33 is flush with the lower surface of the circular upper turntable 21; The lower edge of the notch of the rail 33 is flush with the upper surface of the circular lower turntable 22; the notch of the spiral grooved rail 34 is inward, and the spiral grooved rail 34 is supported and fixed on the upper end surface of each inner column 32; The upper edge of the notch of the grooved rail 34 is flush with the lower surface of the circular upper rotating disk 21; the lower edge of the notch of the spiral grooved rail 34 is flush with the upper surface of the circular lower rotating disk 22; There is a gap between the ring-shaped upper turntables 21, between the spiral groove track 34 and the circular ring-shaped lower turntable 22; there is a gap between the head end of the spiral groove track 34 and the circular ring groove track 33; The end of the grooved rail 34 is in contact with the circular grooved rail 33;

During specific implementation, it also includes a chassis 41 ; the cylinder 11 , the outer column 31 and the inner column 32 are all vertically fixed on the upper surface of the chassis 41 . The main rotating shaft 12 is a hollow structure, and the lower side of the main rotating shaft 12 is provided with a threading hole 17 that penetrates inside and outside; the input ends of the two electromagnets 23 and the transmission end of the position sensor 25 all pass through the upper end of the main rotating shaft 12 in turn. , The threading hole 17 is connected with the rotor of the conductive slip ring 16 . The motor 15 is a variable frequency motor; the position sensor 25 is a photoelectric sensor. Both the annular groove track 33 and the spiral groove track 34 are magnetic suspension groove rails; the trolley 35 is a magnetic suspension trolley.

Claims (5)

1. A double overload environment force loading simulation device is characterized in that: it includes a flywheel energy storage part, an impact overload environment force load part, and a rotating centrifugal overload environment force load part; The energy storage part of the flywheel includes a cylinder (11), a main shaft (12), an electromagnetic clutch (13), a coupling (14), a motor (15), and a conductive slip ring (16); the main shaft (12) The lower part is rotated and assembled in the upper inner cavity of the cylinder (11); the motor (15) is located in the lower inner cavity of the cylinder (11), and the output shaft of the motor (15) passes through the coupling (14), the electromagnetic clutch (13) ) is connected to the lower end of the main rotating shaft (12); the stator of the conductive slip ring (16) is fixedly assembled in the upper inner cavity of the cylinder (11); the rotor of the conductive slip ring (16) is fixedly assembled in the lower part of the main rotating shaft (12) ; The impact overload environment force loading part includes an annular upper turntable (21), an annular lower turntable (22), an electromagnet (23), a collision block (24), and a position sensor (25); the annular upper turntable (21) and the ring-shaped lower turntable (22) are all fixedly assembled on the top of the main shaft (12), and the ring-shaped lower turntable (22) is positioned under the ring-shaped upper turntable (21); the ring-shaped upper turntable (21) has an even number of upper ribs fixed on the lower plate surface; each pair of upper ribs together with the circular upper turntable (21) forms a radial upper chute, and each radial upper chute is arranged equidistantly along the circumferential direction ; The upper surface of the circular lower turntable (22) is fixed with an even number of lower ribs, and the number of the lower ribs is consistent with the number of the upper ribs; A radial glide groove is formed, and each radial glide groove is arranged equidistantly along the circumference; each radial upper glide groove is fastened with each radial glide groove to form an even number of radial glide pipes, and each radial glide groove The outer pipe openings are all provided with limit flanges (26); the number of electromagnets (23) is two; Two electromagnets (23) are positioned opposite; the input ends of the two electromagnets (23) are all connected with the rotor of the conductive slip ring (16); the number of collision blocks (24) is two; two collision blocks (24) They are respectively slidably fitted in the inner chambers of the two radial slide tubes, and the tail ends of the two collision blocks (24) are detachably adsorbed on the two electromagnets (23); the heads of the two collision blocks (24) are thinner than the tail; the position sensor (25) is installed above the upper end surface of the main shaft (12), and the transmission end of the position sensor (25) is connected with the rotor of the conductive slip ring (16); The rotating centrifugal overload environment force loading part includes an outer column (31), an inner column (32), a circular groove (33), a spiral groove (34), and a trolley (35); the outer column (31) The number is several, and each outer column (31) is arranged at the outer side of the cylinder (11) equidistantly along the circumferential direction; the number of inner columns (32) is several, and each inner column (32) is equidistant along the circumferential direction Arranged between each outer column (31) and the cylinder (11); the notch of the circular grooved rail (33) faces inward, and the circular grooved rail (33) is supported and fixed on each outer column (31) Upper end face; the upper edge of the notch of the circular groove (33) is flush with the lower surface of the circular upper turntable (21); the lower edge of the notch of the circular groove (33) is flush with the lower edge of the circular lower turntable ( 22) is flush with the upper plate surface; the notch of the spiral grooved rail (34) is inward, and the spiral grooved rail (34) is supported and fixed on the upper end surface of each inner column (32); the spiral grooved rail (34) The upper edge of the notch is flush with the lower surface of the circular upper turntable (21); the lower edge of the notch of the spiral groove track (34) is flush with the upper surface of the circular lower turntable (22); the spiral groove track ( 34) and the ring-shaped upper turntable (21), there are gaps between the spiral groove track (34) and the ring-shaped lower turntable (22); the head end of the spiral groove track (34) and the ring There is a gap between the grooved rails (33); the end of the spiral grooved rail (34) is in contact with the circular grooved rail (33); the trolley (35) is slidably fitted in the inner cavity of the spiral grooved rail (34) . 2. A dual overload environmental force loading simulation device according to claim 1, characterized in that: it also includes a chassis (41); the cylinder (11), the outer column (31), and the inner column (32) are vertically fixed on the upper surface of the chassis (41). 3. A dual-overload environmental force loading simulation device according to claim 1, characterized in that: the main shaft (12) is a hollow structure, and the lower side of the main shaft (12) is provided with a threading hole ( 17); the input ends of the two electromagnets (23) and the transmission end of the position sensor (25) pass through the upper opening of the main shaft (12), the threading hole (17) and the rotor of the conductive slip ring (16) in sequence connect. 4 . The dual overload environment force loading simulation device according to claim 1 , characterized in that: the motor ( 15 ) is a variable frequency speed regulating motor; the position sensor ( 25 ) is a photoelectric sensor. 5. A double overload environment force loading simulation device according to claim 1, characterized in that: the circular groove (33) and the spiral groove (34) are all magnetic suspension grooves; the trolley (35) is the magnetic levitation dolly.