CN111006894B

CN111006894B - Intelligent bomb flight attitude simulation test tool

Info

Publication number: CN111006894B
Application number: CN201911357343.2A
Authority: CN
Inventors: 邓云; 赵娟; 李平
Original assignee: Chongqing Tianyang Topology Technology Co ltd
Current assignee: Chongqing Tianyang Topology Technology Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-12-08
Anticipated expiration: 2039-12-25
Also published as: CN111006894A

Abstract

The invention discloses an intelligent bomb flight attitude simulation test tool which comprises a horizontally arranged base, wherein the horizontally arranged base is provided with a plurality of horizontal grooves; at least three vertical adjusting supporting bodies are uniformly distributed on the base along the circumferential direction, and a rotating mechanism and a simulation testing mechanism are sequentially arranged in the middle of the base from bottom to top; and a level gauge is arranged on the base and used for measuring whether the base is horizontal or not. The test tool can test flight state data of the intelligent bomb, the flying bomb and the like, can be completed in a ground laboratory, is convenient to operate and adjust and very high in accuracy, and can be used for reference and reference of the same industry.

Description

Intelligent bomb flight attitude simulation test tool

Technical Field

The invention belongs to the technical field of mechanical test equipment, and particularly relates to an intelligent bomb flight attitude simulation test tool.

Background

The intelligent projectile such as a rocket projectile, a cannonball and the like is always in a flying state in the process from launching to hitting a target. In the flying process, the intelligent bomb not only flies forwards at a high speed, but also can rotate at a high speed. The existing test mode mainly utilizes live ammunition to carry out flight test, and utilizes equipment such as a high-speed camera to acquire flight data. However, flight tests using live ammunition are expensive, cannot be implemented due to site limitations in many cases, and have poor security.

Disclosure of Invention

The invention provides a flight attitude simulation test tool for an intelligent projectile, which simulates the flight state of the intelligent projectile in a room and further measures the flight state data of the intelligent projectile.

The technical scheme of the invention is as follows: the utility model provides an intelligence bullet flight gesture simulation test frock comprises horizontal support mechanism, rotary mechanism and the simulation test mechanism who up sets gradually down, wherein: the simulation test mechanism is fixedly connected with the rotating mechanism and driven by the rotating mechanism to rotate;

horizontal supporting mechanism includes base and spirit level, wherein: at least three vertical adjusting supporting bodies are uniformly distributed on the base along the circumferential direction and are supported on the ground through all the vertical adjusting supporting bodies; each vertical adjusting support body comprises a threaded sleeve and a screw rod, wherein the threaded sleeve is fixedly connected with the base, the threaded sleeve is in threaded connection with one screw rod, and the screw rod is rotated to drive the base to ascend or descend; the level gauge is arranged on the base and used for measuring whether the base is horizontal or not;

the rotating mechanism comprises a shaft sleeve and a hollow shaft which are coaxially arranged, wherein the central axis of the shaft sleeve is vertical, and the bottom of the shaft sleeve is fixedly connected with the base; the center hole of the shaft sleeve is a multi-section step hole with a large top and a small bottom, the hollow shaft is positioned in the multi-section step hole in the center of the shaft sleeve, and the shaft sleeve is rotatably connected with the hollow shaft; the shaft sleeve is radially provided with a thread tightening hole, the outer wall of the hollow shaft is circumferentially provided with a circle of groove, the thread tightening hole penetrates through the groove, a locking screw is screwed in the thread tightening hole, the locking screw can be in contact with the bottom of the groove, and the hollow shaft is limited to rotate by the locking screw;

the simulation testing mechanism comprises a substrate, a driving assembly and a follow-up assembly, wherein the middle part of the substrate is fixedly connected with the upper end of the hollow shaft, so that the substrate can synchronously rotate along with the hollow shaft; a circle of angle scales are arranged on the outer wall of the shaft sleeve along the circumferential direction, an indicating arrow board is fixedly mounted on the substrate, the angle scales are matched with the indicating arrow board, and the angle value of the substrate rotating around the shaft sleeve is read through the position of the angle scales indicated by the indicating arrow board; the substrate is provided with a driving assembly and a follow-up assembly, and the driving assembly and the follow-up assembly are positioned on the opposite sides of the rotating mechanism;

the driving assembly comprises a motor, an encoder, a gear pair, a first transmission shaft and a first bearing seat, wherein the motor is fixedly arranged on the substrate through a motor V-shaped seat, and the first bearing seat is fixedly connected with the base; the first transmission shaft is horizontally arranged and is rotatably connected with the first bearing seat through bearings at two ends; the first transmission shaft is connected with an output shaft of the motor through a gear pair, so that the motor drives the first transmission shaft to rotate through the gear pair; one end of the first transmission shaft, which is close to the motor, is coaxially connected with the encoder, so that the encoder can measure the rotating speed of the first transmission shaft;

the follow-up assembly comprises a second bearing seat, a chute plate and a second transmission shaft; the sliding groove plate is fixedly arranged on the base plate, a sliding groove is formed in the sliding groove plate, and the length direction of the sliding groove is parallel to the axial direction of the first transmission shaft; the second bearing seat is in sliding fit with the sliding chute plate through the sliding chute, so that the second bearing seat horizontally slides back and forth along the length direction of the sliding chute, and the first bearing seat and the second bearing seat are coaxially positioned through the sliding chute plate; the bottom of the second bearing seat is provided with a fixing bolt, the second bearing seat is fixedly connected with the substrate through the fixing bolt, and the top of the second bearing seat is provided with a north indicator; two ends of the second transmission shaft are respectively and rotatably connected with the second bearing seat through bearings, and the second transmission shaft and the first transmission shaft are coaxially arranged; the second transmission shaft is provided with a stepped test hole along the axial direction, and the stepped test hole penetrates through two ends of the second transmission shaft; a sliding ring is axially arranged on the inner wall of a hole section of the stepped test hole, which is far away from the first transmission shaft, and one side of the second bearing seat, which is far away from the first transmission shaft, is detachably connected with a pressing line, and the pressing line is used for fixing and binding a test wire harness;

the one end that first transmission shaft is close to the second transmission shaft is equipped with first adapter, and the one end that the second transmission shaft is close to first transmission shaft is equipped with the second adapter, and first, the coaxial setting of two adapters, and press from both sides the intelligent bullet that tightly awaits measuring between first, two adapters.

Further: the motor is sleeved with a motor outer sleeve for shielding an electromagnetic field, the motor outer sleeve is fixedly arranged on the base plate through a motor V-shaped seat, and an output shaft of the motor extends to the outside of the motor outer sleeve and is connected with the gear pair;

except for the motor, the motor outer sleeve, the level gauge, the encoder and the north indicator, other parts of the horizontal supporting mechanism, the rotating mechanism and the simulation testing mechanism are made of copper or aluminum.

Further: the first transmission shaft is provided with a clamping piece through a first adapter, and the second transmission shaft is provided with a clamping piece through a second adapter; the first adapter and the second adapter are both detachably and fixedly connected with the clamping piece; the first adapter is coaxially and fixedly sleeved on the first transmission shaft, and the second adapter is coaxially sleeved outside the second transmission shaft;

the second adapter is in sliding fit with the second transmission shaft; a key groove is formed in the contact surface of the second transmission shaft in sliding fit with the second adapter, and the length direction of the key groove is parallel to the axial direction of the second transmission shaft; a positioning key is matched in the key groove and can slide along the long direction of the key groove; the one end fixedly connected with clamp of second adapter is kept away from to navigation key and second adapter fixed connection, navigation key, this clamp with the detachable fixed connection of second transmission shaft realizes the relative position between fixed second adapter and the second transmission shaft through the clamp.

Further: each vertical adjusting support body also comprises a foot pad and a baffle; the foot pad is small in size and big in size, and the top of the foot pad is provided with a conical cavity which is big in size and small in size; the lower end of the screw rod is axially protruded with a spherical part, and the outer surface of the spherical part is attached to the cavity surface of the conical cavity; the baffle is of a detachable combined structure, a limiting hole is formed in the middle of the baffle, and the hole wall of the limiting hole is rotationally attached to the outer surface of the screw; a flange is protruded downwards from the edge of the baffle plate, and the inner side wall of the flange is rotationally attached to the outer wall of the upper part of the foot pad; and the flange is provided with a thread fixing hole, and a screw is screwed in the thread fixing hole.

Further: and a hollow shaft is coaxially arranged between the hollow shaft and the shaft sleeve, wherein the hollow shaft is fixed with the shaft sleeve, and the hollow shaft is simultaneously in running fit with the hollow shaft.

Further: the north indicator is a geological compass or a north pointer.

The beneficial effect of this scheme:

1. the invention is used in a ground laboratory, the test can be carried out without firing live ammunition, the cost is greatly reduced, the test is not limited by the field, and the confidentiality is also greatly improved;

2. the simulation testing mechanism of the testing tool clamps the intelligent bomb to be tested and can drive the intelligent bomb to rotate at a high speed, and the rotating mechanism can drive the simulation testing mechanism to rotate circumferentially by a certain angle, so that flight parameters of the intelligent bomb in a flight state can be simulated, the flight parameters are collected by various testing components, and the collected data are transmitted to a computer through a slip ring to be analyzed;

3. because the motor rotates at high speed, a magnetic field is generated, and compared with the earth magnetic field, the magnetic field is subjected to magnetic interference; the tool uses soft magnetic alloy materials to completely wrap the motor, so that the motor is electromagnetically shielded; meanwhile, the horizontal supporting mechanism, the rotating mechanism and the simulation testing mechanism are made of copper or aluminum, the copper or aluminum has poor magnetic conductivity and is not easy to be magnetized to generate magnetic interference, and the two technical means are organically combined to avoid the influence of a magnetic field generated by the tool on the sensitivity of a magnetic sensor of a tested product and the change of the earth magnetic field, so that the testing precision is ensured;

4. the hollow first shaft and the shaft sleeve are connected and transited through the hollow second shaft, and the hollow second shaft is used as a wear part, so that the test cost is reduced;

5. the first adapter and the second adapter can be replaced according to different intelligent bullets, and the second adapter slides along the axial direction to realize that the distance between the first adapter and the second adapter is adjustable, so that the device is suitable for different intelligent bullets;

compared with the prior art, the test tool in the scheme can test the flight state data of the intelligent bombs, the flying bombs and the like, especially in a ground laboratory, is convenient to operate and adjust, high in accuracy and good in confidentiality, and can be used for reference and reference of the same industry.

Drawings

FIG. 1 is an isometric view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a cross-sectional view of FIG. 2;

FIG. 5 is a bottom view of FIG. 2;

fig. 6 is a schematic view of the internal structure of the vertical adjustment support in fig. 2.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, the intelligent bomb flight attitude simulation test fixture disclosed by the invention comprises a horizontally arranged base 33, wherein three vertical adjustment support bodies are arranged on the base 33, the three vertical adjustment support bodies are uniformly distributed on the base 33 along the circumferential direction of a plane, and the base 33 is vertically supported by the three vertical adjustment support bodies. Each vertical regulation supporter all includes callus on the sole 35, baffle 36, screw rod 37 and thread bush 38 from supreme down in proper order, and callus on the sole 35 is big end to end, and the conical cavity of a big end to end has been seted up at the top of callus on the sole 35 simultaneously. The lower end of the screw 37 is protruded with a spherical part 35a along the axial direction, the spherical part 35a is inserted into the conical cavity from top to bottom, and the outer surface of the spherical part 35a is attached to the cavity surface of the conical cavity.

The baffle 36 is formed by oppositely splicing two cover bodies, and the two cover bodies are fixedly connected into a combined body through bolts, screws or welding. The middle part of the baffle 36 is provided with a limiting hole, and the hole wall of the limiting hole is rotationally attached to the outer surface of the screw 37. The edge of the baffle 36 is provided with a flange 36a protruding downwards, the flange 36a is provided with a horizontal or inclined screw thread fixing hole 36b, the inner side wall of the flange 36a is rotatably jointed with the outer wall of the upper part of the foot pad 35, and a screw is screwed in the screw thread fixing hole 36 b. With the above arrangement, the lower end of the screw 37 can be fixed to the foot pad 35 by the baffle 36. It should be noted that the rotation bonding in the present application means: the outer surface of the screw rod 37 is attached to the hole wall of the limiting hole, meanwhile, the screw rod 37 can also rotate in the limiting hole along the axial direction, the structure is determined, the mode of rotating and attaching the two objects belongs to the structural mode, and the redundant explanation of the rotating and attaching structure is not needed in the subsequent description part.

The threaded sleeve 38 is fixedly connected with the base 33 through screws, and the screw 37 is in threaded connection with the threaded sleeve 38. By rotating the screw 37, the base 33 is urged to be raised or lowered. And in the process of ascending or descending the base 33, the spherical part 35a at the lower end of the screw 37 forms a rotating fit structure with the conical cavity, so that the foot pad 35 and the baffle 36 are in a static state when the base 33 ascends or descends.

A level chamber is opened on the upper surface of the base 33, and a mounting plate 41 is fixed to the bottom of the level chamber, and a level 40 is fixedly mounted in the level chamber through the mounting plate 41, and the level 40 is restricted in the level chamber through a cavity cover plate 39. The level gauge 40 is used to measure the levelness of the base 33. In particular use, the base 33 is caused to be adjusted to the horizontal by rotating the three screws 37 of the three vertical support adjusting bodies, respectively, and the level gauge 40 is used to visually display whether the base 33 has been adjusted to the horizontal.

The middle part of the base 33 is also provided with a rotating mechanism and a simulation testing mechanism from bottom to top in sequence.

The rotating mechanism comprises a shaft sleeve 32, a hollow biaxial 31 and a hollow uniaxial 30 which are coaxially arranged. The base 33 is provided with a mounting hole, the shaft sleeve 32 is inserted into the mounting hole from top to bottom along the axial direction, and the shaft sleeve 32 is fixedly connected with the base 33 through a bolt. That is, the lower portion of the boss 32 and the base 33 are fixed by insertion and bolts. The hollow secondary shaft 31 is inserted into the shaft sleeve 32 from top to bottom, the hollow primary shaft 30 is inserted into the hollow secondary shaft 31 from top to bottom, and the hollow primary shaft 30 and the hollow secondary shaft 31 are axially limited by a retainer ring 34 fixedly mounted at the bottom of the shaft sleeve 32. As shown in fig. 4, the central hole of the shaft sleeve 32 is a multi-step hole with a large top and a small bottom; the outside of the hollow shaft 31 is step-shaped, and the outer wall of the hollow shaft 31 is rotatably attached to the step hole inside the shaft sleeve 32, and as shown in fig. 5, the upper end surface of the hollow shaft 31 is fixedly connected with the upper part of the shaft sleeve 32 by a screw, and the screw penetrates through the hollow shaft 31 from top to bottom and then is in threaded connection with the upper end part of the shaft sleeve 32. The hollow shaft 31 is also provided with a step hole inside; the exterior of the hollow shaft 30 is also stepped and the outer wall of the hollow shaft 30 is rotatably engaged with a stepped bore in the interior of the hollow shaft 30. The structure of the rotating mechanism realizes that the shaft sleeve 32 is fixed with the base 33, the hollow shaft 30 can rotate along the axial direction of the shaft sleeve 32 through the hollow shafts 31, namely the hollow shaft 30 is in running fit with the shaft sleeve 32, but the hollow shafts 31 are used as a transition piece and a loss piece, only the hollow shafts 31 need to be replaced during maintenance, and the shaft sleeve 32 and the hollow shaft 30 are not required to be processed and replaced again after being used for a long time.

As shown in fig. 5, the sleeve 32 is provided with a screw fastening hole along the radial direction, and the outer wall of the hollow shaft 30 is provided with a circle of grooves 30a along the circumferential direction, and the screw fastening hole penetrates all the way to the grooves 30a along the radial direction. After the locking screw 43 is screwed into the threaded fastening hole and directly abuts against the bottom of the groove 30a, the locking screw 43 limits the hollow shaft 30 to rotate, so that the hollow shaft 30 is fixedly connected with the shaft sleeve 32, and the hollow shaft 30 is detachably connected to the shaft sleeve 32 through the locking screw 43.

The simulation test mechanism comprises a substrate 1, and the middle part of the substrate 1 is fixedly connected with the upper end of a hollow shaft 30 through a bolt. The base plate 1 is provided with an active assembly and a follow-up assembly. In order to reduce the weight difference between the active assembly and the follow-up assembly, a weight pad 29 may be fixedly installed on the side of the base plate 1 close to the follow-up assembly to reduce the overturning moment of the base plate 1, which is beneficial to balance maintenance.

The active combination comprises a motor, an encoder 9, a gear pair 8, a first transmission shaft 14 and a first bearing seat 12. The motor passes through motor V type seat 2 fixed mounting on base plate 1, installs line ball 4 and line ball bottom plate 3 on the motor V type seat 2 simultaneously, and line ball 4 and line ball bottom plate 3 are used for fixing the driver of motor, and the driver belongs to the rotatory essential element of driving motor. The tail part of the motor is provided with a motor bottom outer cover 5, and a motor plastic cover 6 is arranged between the motor bottom outer cover 5 and the motor.

In this scheme, the outside cover of motor is equipped with motor outer sleeve 7, and motor fixed mounting is inside motor outer sleeve 7, and only the output shaft of motor extends to motor outer sleeve 7 outsidely. After the motor outer sleeve 7 is fixedly connected with the motor plastic cover 6 and the motor bottom outer cover 5 respectively, the motor plastic cover 6 and the motor bottom outer cover 5 are fixed with the motor V-shaped seat 2, so that the motor is fixed on the motor V-shaped seat 2, and the motor outer sleeve 7 is fixed with the motor V-shaped seat 2 through the clamp 7 a. The influence of the motor magnetic field on the earth magnetic field can be shielded through the isolation of the motor outer sleeve 7.

The first bearing seat 12 is fixedly installed on the base plate 1, and the first transmission shaft 14 is rotatably connected to the first bearing seat 12 through a bearing 15. The output shaft of the motor and the axial direction of the first transmission shaft 14 are both horizontally arranged, and the output shaft of the motor and the first transmission shaft 14 are connected with the gear pair 8 together, so that the output shaft of the motor drives the first transmission shaft 14 to rotate through the gear pair 8. And one end of the first transmission shaft 14 close to the motor is connected with the encoder 9, so that the rotating speed of the first output shaft is transmitted to the encoder 9, namely, the first output shaft is used as the input end of the encoder 9. Install gear cover 11 between encoder 9 and the first bearing frame 12, encoder 9 passes through the encoder 9 support and 11 fixed connection of gear cover, and gear cover 11 and first bearing frame 12 fixed connection, and gear cover 11 seals gear pair 8 simultaneously. Of course, the encoder 9 is not necessarily mounted on the gear cover 11, but may be directly fixed on the first bearing seat 12 or the base plate 1, which does not affect the function of the encoder 9 in this case.

The follower assembly includes a second bearing housing 22 and a second drive shaft 21. As shown in fig. 1 and 4, a chute plate 28 is fixedly connected to the base plate 1, a chute is formed in the base plate 1 along the axial direction of the first transmission shaft 14, the bottom of the second bearing seat 22 is in sliding fit with the chute plate 28, the bottom of the second bearing seat 22 is in sliding fit with the base plate 1 through the chute, a fixing bolt 13 is further installed at the bottom of the second bearing seat 22, and the fixing bolt 13 is connected with the chute. As shown in fig. 5, a profiled nut 13a is provided at the bottom of the chute formed on the base plate 1, the second bearing seat 22 can horizontally slide on the chute plate 28 along the length direction of the chute, but after the profiled nut 13a and the fixing bolt 13 are screwed, the second bearing seat 22 can be locked or fixed on the base plate 1, and the chute plate 28 is used for coaxially positioning the first bearing seat 12 and the second bearing seat 22 with respect to the sliding direction of the second bearing seat 22, and the second bearing seat 22 is fixed on the base plate 1 by the fixing bolt 13.

The second transmission shaft 21 is also rotatably connected to the second bearing block 22 through the bearing 15, and the first transmission shaft 14 and the second transmission shaft 21 are coaxial with the rotation axis. It should be noted that, the lock nuts 16 are screwed on the first transmission shaft 14 and the second transmission shaft 21, and the lock nuts 16 prevent the first transmission shaft 14 from moving in the axial direction of the first bearing seat 12, and also prevent the second transmission shaft 21 from moving in the axial direction of the second transmission shaft 21. The lock nut 16 is conventional in the mechanical field and therefore will not be described in detail in this embodiment.

Second transmission shaft 21 has seted up ladder test hole 21b along the axial, and this ladder test hole 21b runs through the both ends of second transmission shaft 21 and downthehole test components and parts that are provided with, and the hole section inner wall of keeping away from first transmission shaft 14 of this ladder test hole 21b has arranged a plurality of sliding ring 26 along the axial simultaneously, arranges 20-30 sliding ring 26 under the general condition, and one side bolted connection that second bearing frame 22 kept away from first transmission shaft 14 has line ball strip 27 simultaneously. It should be noted that: the slip ring 26 in this embodiment is used to conduct electricity in a rotating state, after the test harness is fixed on the second bearing seat 22 through the pressing line 27, the second transmission shaft 21 rotates at a high speed, and the test line speed needs to transmit the monitoring data of various test components to a computer for analysis, which necessitates the slip ring 26 structure. The slip ring 26 structure is also conventional in the art, and is similar to the contact plate conductive structure of a brushless motor, and therefore will only be described briefly.

A second adapter 18 is coaxially sleeved at one end of the second transmission shaft 21 close to the first transmission shaft 14, and a first adapter 17 is coaxially sleeved at one end of the first transmission shaft 14 close to the second transmission shaft 21. In the present case, therefore, the first transmission shaft 14, the first adapter 17, the second adapter 18 and the second transmission shaft 21 are arranged coaxially. And the intelligent bomb to be tested is coaxially fixed by the first adapter 17 and the second adapter 18. If it is intended to test only a smart cartridge, the first and

second adapters

17, 18 in this case may be conventional and form-fitting clamps which are used only for clamping workpieces of fixed shape, such as smart cartridges, missiles and the like. However, in order to test various workpieces, in this optimized solution, the first adapter 17 and the second adapter 18 are provided as transition pieces: that is, after the smart cartridge is clamped by the clamping part, the clamping part is coaxially fixed with the first transmission shaft 14 and the second transmission shaft 21 through the first adapter 17 and the second adapter 18, so that the complexity of the clamping part can be reduced, and the cost for manufacturing the clamping part can be reduced.

As shown in fig. 1 to 4, in the optimized solution, the first swivel joint 17 is sleeved on the first transmission shaft 14 through a gradually increasing step hole and is axially fixed through a screw, which is a conventional manner; the second adapter 18 is fitted over the second drive shaft 21 through a cylindrical bore and is axially locked by the detent key 19 and the clip 20. The above structure realizes that after the first rotary joint 17 is fixedly connected with the first transmission shaft 14, the first rotary joint 17 cannot be displaced along the axial direction of the first transmission shaft 14, and once the first rotary joint 17 is displaced, the connection stability of the first rotary joint 17 and the first transmission shaft 14 is poor; the second adapter 18 can achieve a small displacement along the axial direction of the second transmission shaft 21 while ensuring a good connection stability. This is because the bore diameters of the cylindrical holes of the second adapter 18 and the second transmission shaft 21 are not changed after the second adapter 18 and the second transmission shaft 21 are displaced relatively from each other in the circumferential direction, and therefore, the stability of the connection between the second adapter 18 and the second transmission shaft 21 is not affected.

In this embodiment, the second transmission shaft 21 has a key slot 21a along the axial direction, and the positioning key 19 is slidably engaged with the key slot 21a along the axial direction. One end of the positioning key 19 is locked and fixed with the second connecting member by a screw, and the other end is also fixedly connected with the clamp 20 by a screw or welding. After the clamp 20 is tightly held on the second transmission shaft 21 by a metal tension force, the second adapter 18 can be fixed on the second transmission shaft 21, so that the relative position between the second adapter 18 and the second transmission shaft 21 along the axial direction is fixed, that is, the fixed position between the second adapter 18 and the second transmission shaft 21 can be finely adjusted by the positioning key 19 and the clamp 20.

As shown in fig. 1 and 2, a circle of angle scales 32a is engraved on the outer wall of the sleeve 32 along the circumferential direction, and an indication arrow mark 42 is fixedly mounted on the base plate 1, and the angle scales 32a are matched with the indication arrow mark 42. When the substrate 1 rotates around the shaft sleeve 32, the arrow indicator will be aligned with a certain scale value, and the angle value can be read. In the scheme, a compass mounting plate 23 is fixed on the top of the second bearing seat 22, and a geological compass is also fixedly mounted on the compass mounting plate 23. By means of a geological compass, the north direction can be determined accurately. Therefore, the geological compass mounting plate 23 is not the only option, and a north indicator such as a north arrow, an electronic compass, etc. may be fixedly mounted on the top of the second bearing seat 22, as long as the north direction can be accurately indicated. The working principle of the present invention is described in the following specific embodiments:

in the present application, the intelligent projectile to be tested is taken as an example, and the working principle is specifically explained for the attitude angle and angular velocity test of the intelligent projectile. However, it should be clear that the test tool in the present application is not necessarily only used for testing the smart projectile, but also used for testing the flight attitude data of the rocket projectile, the missile, the guidance head of the missile, and the like.

The smart cartridge is fixed to the first adapter 17 and the second adapter 18 by the clamping member, and the smart cartridge is adjusted until the smart cartridge, the clamping member and the first adapter 17 are coaxial, although the first adapter 17, the second adapter 18, the first transmission shaft 14 and the second transmission shaft 21 are also coaxially arranged. It should be noted that the rotation axis of the base around the sleeve 32 is perpendicular to the rotation axis of the smart card, and the rotation axis of the smart card is also horizontally arranged, that is, the rotation axis of the smart card is parallel to the base 33. Through three vertical adjustment supports, adjust the level with base 33, whether the quotation of base 33 is horizontal can read the affirmation through spirit level 40. After the adjustment of the base 33 is completed, the next test installation can be performed. It should be noted that: the base 33 can be performed before or after the smart cartridge is mounted and fixed to the test fixture in this case, which does not affect the test result.

Continuing with the north arrow mounted on the second bearing housing 22, the north direction is precisely determined. And (3) loosening the locking screw 43 and rotating the base plate 1 until the rotation axis of the smart bomb is parallel to the north-south axis, wherein the north-south axis is determined by the north-south indicator, namely the rotation axis of the smart bomb is parallel to the direction of the pointer of the north-south indicator. Then, the base plate 1 is locked by the locking screw 43, so that the base plate 1 is fixed on the shaft sleeve 32 by the locking screw 43, and the rotation of the base plate 1 is limited.

After the adjustment is completed, the motor is started, and the motor drives the first transmission shaft 14 to rotate through the gear pair 8. And the first transmission shaft 14 drives the encoder 9 and the smart bomb to synchronously rotate. The encoder 9 feeds back the detected rotation angle to a corresponding circuit or driving instrument for controlling the motor, and then the rotation speed of the motor is controlled in a closed loop mode through the circuit or the driving instrument, whether the rotation speed of the motor is detected under the test condition or not is detected, and the output rotation speed of the motor can be adjusted when needed.

Under the above state, various test components transmit the detected data to the test wiring harness through the slip ring 26, and transmit the data to the computer for analysis through the wiring harness, thereby completing the simulation test process of the flying rotation attitude of the intelligent projectile at high rotation speed.

In the implementation process, in order to improve the testing accuracy, the implementation structure in the present case includes a shielding process for the motor. The motor outer sleeve 7 is additionally arranged outside the motor, the motor outer sleeve 7 is utilized to shield the magnetism generated by the motor, the outward radiation of the magnetic field of the motor is avoided, the interference of the magnetic field generated by the motor to the earth magnetic field around the sensitivity of a tested product is prevented, the action and the influence of the earth magnetic field on the magnetic field of the motor are avoided, the magnetic interference of the motor is eliminated as far as possible, and the testing precision is improved. Of course, in order to further reduce the magnetic field interference, the materials used for manufacturing the base 33, the vertical adjustment support, the rotating mechanism and the simulation testing mechanism are also copper or aluminum with low iron content as much as possible, and the motor outer sleeve 7 can be made of soft magnetic alloy materials except for the motor, the motor outer sleeve 7, the level gauge 40, the encoder 9 and the north indicator. One skilled in the art can refer to this principle because copper or aluminum has a low magnetic permeability.

The above description is only exemplary of the present invention and should not be taken as limiting, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an intelligence bullet flight attitude simulation test frock which characterized in that: constitute by horizontal supporting mechanism, rotary mechanism and the simulation test mechanism that up set gradually down, wherein: the simulation test mechanism is fixedly connected with the rotating mechanism and driven by the rotating mechanism to rotate;

the horizontal support mechanism comprises a base (33) and a level (40), wherein: at least three vertical adjusting support bodies are uniformly distributed on the base (33) along the circumferential direction and are supported on the ground through all the vertical adjusting support bodies; each vertical adjusting support body comprises a threaded sleeve (38) and a screw rod (37), wherein the threaded sleeve (38) is fixedly connected with the base (33), the threaded sleeve (38) is in threaded connection with the screw rod (37), and the screw rod (37) is rotated to drive the base (33) to ascend or descend; the level gauge (40) is mounted on the base (33), and the level gauge (40) is used for measuring whether the base (33) is horizontal or not;

the rotating mechanism comprises a shaft sleeve (32) and a hollow shaft (30) which are coaxially arranged, wherein the central axis of the shaft sleeve (32) is vertical, and the bottom of the shaft sleeve (32) is fixedly connected with the base (33); the center hole of the shaft sleeve (32) is a multi-section step hole with a large top and a small bottom, the hollow shaft (30) is positioned in the multi-section step hole in the center of the shaft sleeve (32), and the shaft sleeve (32) is rotatably connected with the hollow shaft (30); the shaft sleeve (32) is provided with a thread tightening hole along the radial direction, the outer wall of the hollow shaft (30) is provided with a circle of groove (30 a) along the circumferential direction, the thread tightening hole penetrates through the groove (30 a), a locking screw (43) is screwed in the thread tightening hole, the locking screw (43) can be in contact with the bottom of the groove (30 a), and the hollow shaft (30) is limited to rotate through the locking screw (43);

the simulation testing mechanism comprises a substrate (1), an active assembly and a follow-up assembly, wherein the middle part of the substrate (1) is fixedly connected with the upper end of the hollow shaft (30), so that the substrate (1) can synchronously rotate along with the hollow shaft (30); a circle of angle scales (32 a) are arranged on the outer wall of the shaft sleeve (32) along the circumferential direction, an indicating arrow mark (42) is fixedly mounted on the substrate (1), the angle scales (32 a) are matched with the indicating arrow mark (42), and the angle value of the substrate (1) rotating around the shaft sleeve (32) is read through the position of the angle scales (32 a) indicated by the indicating arrow mark (42); the substrate (1) is provided with a driving assembly and a follow-up assembly, and the driving assembly and the follow-up assembly are positioned on the opposite sides of the rotating mechanism;

the active assembly comprises a motor, an encoder (9), a gear pair (8), a first transmission shaft (14) and a first bearing seat (12), wherein the motor is fixedly arranged on a substrate (1) through a motor V-shaped seat (2), and the first bearing seat (12) is fixedly connected with the substrate (1); the first transmission shaft (14) is horizontally arranged, and the first transmission shaft (14) is rotatably connected with the first bearing seat (12) through bearings (15) at two ends; the first transmission shaft (14) is connected with an output shaft of the motor through a gear pair (8), so that the motor drives the first transmission shaft (14) to rotate through the gear pair (8); one end, close to the motor, of the first transmission shaft (14) is coaxially connected with the encoder (9), so that the encoder (9) can measure the rotating speed of the first transmission shaft (14);

the follow-up assembly comprises a second bearing seat (22), a chute plate (28) and a second transmission shaft (21); the sliding groove plate (28) is fixedly arranged on the base plate (1), a sliding groove is formed in the sliding groove plate (28), and the long direction of the sliding groove is parallel to the axial direction of the first transmission shaft (14); the second bearing seat (22) is in sliding fit with the sliding groove plate (28) through the sliding groove, so that the second bearing seat (22) horizontally slides back and forth along the long direction of the sliding groove, and the first bearing seat (12) and the second bearing seat (22) are coaxially positioned through the sliding groove plate (28); the bottom of the second bearing seat (22) is provided with a fixing bolt (13), the second bearing seat (22) is fixedly connected with the substrate (1) through the fixing bolt (13), and the top of the second bearing seat (22) is provided with a north indicator; two ends of the second transmission shaft (21) are respectively and rotatably connected with the second bearing seat (22) through bearings (15), and the second transmission shaft (21) and the first transmission shaft (14) are coaxially arranged; the second transmission shaft (21) is provided with a stepped test hole (21 b) along the axial direction, and the stepped test hole (21 b) penetrates through two ends of the second transmission shaft (21); a sliding ring (26) is axially arranged on the inner wall of a hole section of the stepped test hole (21 b) far away from the first transmission shaft (14), one side, far away from the first transmission shaft (14), of the second bearing seat (22) is detachably connected with a pressing line (27), and the pressing line (27) is used for fixing and binding a test wiring harness;

a first adapter (17) is arranged at one end, close to the second transmission shaft (21), of the first transmission shaft (14), a second adapter (18) is arranged at one end, close to the first transmission shaft (14), of the second transmission shaft (21), the first adapter and the second adapter are coaxially arranged, and an intelligent bullet to be tested is clamped between the first adapter and the second adapter;

a hollow shaft (31) is coaxially arranged between the hollow shaft (30) and the shaft sleeve (32), wherein the hollow shaft (31) is fixed with the shaft sleeve (32), and the hollow shaft (31) is simultaneously in running fit with the hollow shaft (30); the upper ends of the hollow first shaft (30), the hollow second shaft (31) and the shaft sleeve (32) are in a tapered shape with a large upper end and a small lower end and are in sliding fit with each other.

2. The intelligent bomb flight attitude simulation test tool according to claim 1, characterized in that: a motor outer sleeve (7) for shielding an electromagnetic field is sleeved outside the motor, the motor outer sleeve (7) is fixedly arranged on the base plate (1) through a motor V-shaped seat (2), and an output shaft of the motor extends to the outside of the motor outer sleeve (7) and is connected with a gear pair (8);

except for the motor, the motor outer sleeve (7), the level gauge (40), the encoder (9) and the north indicator, other parts of the horizontal supporting mechanism, the rotating mechanism and the simulation testing mechanism are made of copper or aluminum.

3. The intelligent bomb flight attitude simulation test tool according to claim 1, characterized in that: the first transmission shaft (14) is provided with a clamping piece through a first adapter (17), and the second transmission shaft (21) is provided with a clamping piece through a second adapter (18); the first adapter (17) and the second adapter (18) are detachably and fixedly connected with the clamping piece; the first adapter (17) is coaxially and fixedly sleeved on the first transmission shaft (14), and the second adapter (18) is coaxially sleeved outside the second transmission shaft (21);

the second adapter (18) is in sliding fit with the second transmission shaft (21); a key groove (21 a) is formed in the contact surface of the second transmission shaft (21) in sliding fit with the second adapter (18), and the length direction of the key groove (21 a) is parallel to the axial direction of the second transmission shaft (21); a positioning key (19) is matched in the key groove (21 a), and the positioning key (19) can slide along the long direction of the key groove (21 a); positioning key (19) and second adapter (18) fixed connection, positioning key (19) keep away from one end fixedly connected with clamp (20) of second adapter (18), this clamp (20) with the detachable fixed connection of second transmission shaft (21) realizes fixing the relative position between second adapter (18) and second transmission shaft (21) through clamp (20).

4. The intelligent bomb flight attitude simulation test tool according to claim 3, characterized in that: each vertical adjusting support body also comprises a foot pad (35) and a baffle plate (36); the foot pad (35) is small in upper part and large in lower part, and a conical cavity with the large upper part and the small lower part is formed in the top of the foot pad (35); the lower end of the screw rod (37) is axially protruded with a spherical part (35 a), and the outer surface of the spherical part (35 a) is attached to the cavity surface of the conical cavity; the baffle (36) is of a detachable combined structure, a limiting hole is formed in the middle of the baffle (36), and the hole wall of the limiting hole is rotationally attached to the outer surface of the screw (37); a flange (36 a) protrudes downwards from the edge of the baffle plate (36), and the inner side wall of the flange (36 a) is rotationally attached to the outer wall of the upper part of the foot pad (35); the flange (36 a) is provided with a thread fixing hole (36 b), and a screw is screwed in the thread fixing hole (36 b).

5. The intelligent bomb flight attitude simulation test tool according to any one of claims 1-4, wherein: the north indicator is a geological compass or a north pointer.