Nonlinear dynamics test bench

Abstract

The utility model relates to a non-linear dynamic test bench, which comprises a non-linear dynamic test assembly, a surrounding frame and an experiment table, and is characterized in that a motor is started through the arranged experiment table, the output end of the motor drives a linkage rod to steer under rotation, a push-pull arm pushes a door plate, and the door plate swings and folds on the rear end face of a surrounding plate; the rear end face of the peripheral plate is in an opening state, personnel can directly enter the interior of the peripheral plate through the opened opening to overhaul algorithm hardware, after overhaul is completed, the convenient opening and closing structure is made to operate reversely, and after the door plate is closed, the heat dissipation body is started, and the front end of the heat dissipation body is made to rotate at a high speed; according to the utility model, hot gas generated in the peripheral plate can be accelerated and dissipated conveniently, gas cooling is realized, meanwhile, the plate body is provided with a plurality of through holes, the hot gas can be discharged outwards through the through holes conveniently, and thus the test bed is ensured to have excellent heat dissipation performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to nonlinear dynamics technical field, concretely is a kind of nonlinear dynamics test test bed. BACKGROUND

[0002] Nonlinear dynamics test platform is the experimental equipment for studying nonlinear dynamics system, in a system, if the relationship between variables is not simple proportional relationship, it is nonlinear system.Nonlinear dynamics focuses on the stability of system, periodicity, chaos and other phenomena, simple pendulum is a simple physical system, when swinging in small angle, it can be approximately regarded as linear system, but when swinging angle is larger, it presents nonlinear characteristics, and its motion equation cannot be described by simple linear relationship.

[0003] The existing nonlinear dynamics test test bed is optimized, and most of the diversity functions in the test operation of the test bed are improved, for example, the Chinese utility model patent with the application number CN201821654486.0 discloses a nonlinear dynamics characteristic comprehensive test experimental platform containing gap kinematic pair mechanism, in the device, a sleeve is sleeved on the second shaft, and a motor drives the second shaft to rotate or lock, another motor drives the sleeve to slide along the second shaft, the utility model can realize the switching of cylindrical pair, moving pair and rotary pair and carry out related nonlinear dynamics characteristic test under the conditions of different gap size, different rotating speed and different inclination angle of relative horizontal plane.

[0004] Although the above-mentioned nonlinear dynamics test test bed has certain advantages in improving the diversity function of test operation of test bed, it still has certain disadvantages: when the test bed carries out nonlinear dynamics test operation, the experimental variable object and the running part in the test bed need to be cooperated, and the parts in the test bed often need to be detected and maintained by professional personnel after a period of use of the equipment, and usually, the personnel can open the switch door plate of the test bed by loosening the bolt connection between the plates, which leads to the consumption of a large amount of labor force. UTILITY MODEL CONTENTS

[0005] (I) technical problem solved

[0006] To solve the above technical problems, the utility model provides a nonlinear dynamics test test bed.

[0007] (II) technical scheme

[0008] Based on this, the utility model provides the following technical scheme: a nonlinear dynamics test test bench, including nonlinear power test subassembly, enclosure and experiment table, the enclosure is welded in the top end surface of experiment table, the nonlinear power test subassembly is active in the inside of enclosure, the nonlinear power test subassembly is located the upper end of experiment table and the inside of experiment table below nonlinear power test subassembly electric connection.

[0009] Preferably, the experiment table includes a peripheral plate, an algorithm hardware, and a convenient opening and closing structure, the algorithm hardware is installed on the inner side of the peripheral plate, the side end of the convenient opening and closing structure is hinged to the edge end of the peripheral plate, and the inner side of the convenient opening and closing structure is bolted to the wall surface of the peripheral plate through screws.

[0010] Preferably, the convenient opening and closing structure includes a door plate, a push-pull arm, a linkage rod, a motor, and a hanger, one end of the push-pull arm is hinged to the door plate and movably connected, the other end of the push-pull arm is hinged to one end of the linkage rod and movably connected, the other end of the linkage rod is connected to the output end of the motor, and the motor is installed in front of the hanger.

[0011] Preferably, the door plate includes a heat sink, a hollow frame, a plate body, a through hole, and a shaft, the heat sink is movably arranged in front of the hollow frame, the hollow frame and the plate body are integrated and arranged on the inner side, the through hole and the plate body are integrated and arranged at the outer end surface position, the shaft penetrates through the inside of the plate body, and the rear end of the heat sink is embedded and installed in the inside of the plate body.

[0012] Preferably, the algorithm hardware is electrically connected to the nonlinear power test subassembly, the peripheral plate has a hole on the upper end surface, which facilitates the cooperation between the algorithm hardware and the nonlinear power test subassembly, and completes the nonlinear dynamics test experiment.

[0013] Preferably, one side end of the door plate is hinged to the edge end of the peripheral plate, two door plates are symmetrically arranged on the left and right sides, and can be synchronously folded and moved, which facilitates the opening and closing of the rear end surface of the peripheral plate.

[0014] Preferably, the hanger is installed on the inner wall surface of the peripheral plate through screws, and the hanger provides a fixed installation position for the motor.

[0015] Preferably, the push-pull arm is movably arranged above the algorithm hardware, the push-pull arm is movably arranged in the upper position of the inside of the peripheral plate, and the push-pull arms are symmetrically arranged, and under the push-pull action of the linkage rod, the push-pull arms are inclined and moved, which facilitates the push-pull of the door plate.

[0016] Preferably, the plate body is hingedly installed at the edge end of the peripheral plate through a rotating shaft, the through opening is an empty opening on the plate body, and the hollow frame is a hollow plate-shaped object, so that the heat dissipation body blows the inside of the peripheral plate through the hollow frame.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the utility model provides a nonlinear dynamics test test bench, has the following beneficial effects:

[0019] 1、 this nonlinear dynamics test test bench, through to nonlinear dynamics test component realizes cylindrical pair, moving pair and rotation pair's switching, and develops relevant nonlinear dynamics characteristic test, can gather the data of mechanical characteristic change law between motion pair elements under different conditions, completes nonlinear dynamics test experiment work.

[0020] 2、 this nonlinear dynamics test test bench, through the experiment table that is equipped, starts motor, makes its output end under the rotation, drives the steering of linkage lever, lets the push-pull arm push the door plate, and the door plate therefore carries out the swing folding change in the rear end face of the peripheral plate, convenient for opening the rear end face of the peripheral plate, the rear end face of the peripheral plate is in the open state, personnel can directly enter the inside of the peripheral plate through the opening, and the algorithm hardware is overhauled, when the overhaul is completed, the convenient opening and closing structure is reversed, when the door plate is closed, the heat dissipation body is started, and the front end is made high-speed rotation, convenient for accelerating the dispersion of the hot gas in the inside of the peripheral plate, realize gas cooling, and the plate body is equipped with multiple through openings, also convenient for hot gas to flow outward through the through opening, thereby ensure that the test bench has excellent heat dissipation performance. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the overall structure schematic view of the utility model;

[0022] Figure 2 It is the rear view structure schematic view of nonlinear dynamics test component of the utility model;

[0023] Figure 3 It is the structure schematic view of experiment table of the utility model;

[0024] Figure 4 It is the structure schematic view of convenient opening and closing structure of the utility model;

[0025] Figure 5 It is the structure schematic view of door plate of the utility model.

[0026] In the figure: nonlinear dynamic test assembly-1, enclosure-2, test bench-3, peripheral plate-31, algorithm hardware-32, convenient opening and closing structure-33, door plate-331, push-pull arm-332, linkage rod-333, motor-334, hanger-335, heat sink-a1, hollow frame-a2, plate body-a3, through hole-a4, rotating shaft-a5. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] Please refer to Figures 1-2 A nonlinear dynamics test test bench, comprising a nonlinear dynamic test assembly 1, an enclosure 2 and a test bench 3, the enclosure 2 is welded on the top end face of the test bench 3, the nonlinear dynamic test assembly 1 is movably arranged on the inner side of the enclosure 2, the nonlinear dynamic test assembly 1 is located at the upper end of the test bench 3, and the lower part of the nonlinear dynamic test assembly 1 is electrically connected with the inner part of the test bench 3.

[0029] Please refer to Figures 3-4The utility model provides a kind of nonlinear dynamics test test bench, experimental bench 3 includes peripheral board 31, algorithm hardware 32 and convenient open-close structure 33, algorithm hardware 32 is installed in the inside of peripheral board 31 side, the side end of convenient open-close structure 33 is hinged with the edge end of peripheral board 31, the wall surface of the inside of peripheral board 31 is bolted by screw with convenient open-close structure 33, convenient open-close structure 33 includes door plate 331, push-pull arm 332, linkage rod 333, motor 334 and hanger 335, one end of push-pull arm 332 is hinged with door plate 331 and movable cooperation, the other end of push-pull arm 332 is hinged with one end of linkage rod 333 and movable cooperation, the other end of linkage rod 333 is connected with the output end of motor 334, motor 334 is installed in the front of hanger 335, algorithm hardware 32 and nonlinear dynamic test assembly 1 electrically cooperate, the structure surface of peripheral board 31 has orifice in upper end face, to facilitate algorithm hardware 32 and nonlinear dynamic test assembly 1 and each other cooperation, complete nonlinear dynamics test experiment, one side end of door plate 331 is hinged with the edge end of peripheral board 31, door plate 331 is equipped with two, and left-right symmetry is arranged, and can be synchronous folding movement, to facilitate the rear end face of peripheral board 31 to open and close, hanger 335 is installed on the inner wall surface of peripheral board 31 by screw, hanger 335 provides fixed installation position for motor 334, push-pull arm 332 moves with the upper side of algorithm hardware 32, push-pull arm 332 clearance moves at the inside upper position of peripheral board 31, and push-pull arm 332 is symmetrically arranged, under the push-pull effect of linkage rod 333, inclination movement is generated, to facilitate the push-pull of door plate 331.

[0030] Please refer to Figure 5 A kind of nonlinear dynamics test test bench, door plate 331 includes heat sink a1, hollow frame a2, plate body a3, through hole a4 and pivot a5, heat sink a1 moves in the front of hollow frame a2, hollow frame a2 and plate body a3 are integrated structure and located its inside side, through hole a4 and plate body a3 are integrated structure and pass through at its outer end surface position, pivot a5 is passed through the inside of plate body a3, the rear end of heat sink a1 is embedded in the inside of plate body a3, plate body a3 is hinged and installed at the edge end of peripheral board 31 by pivot a5, through hole a4 is the empty opening on plate body a3, hollow frame a2 is hollow plate, to facilitate heat sink a1 to blow the inside of peripheral board 31 through hollow frame a2.

[0031] In summary, by switching the cylindrical pair, the moving pair and the rotary pair through the nonlinear dynamic test assembly 1, and carrying out the related nonlinear dynamic characteristic test, the data of the mechanical characteristic change law between the elements of the moving pair under different conditions can be collected, the nonlinear dynamic test experiment work is completed, through the experimental table 3, when the test experiment is completed, the personnel need to overhaul the algorithm hardware 32, only need to start the motor 334, make the output end rotate, drive the linkage rod 333 to turn, make one end of the linkage rod 333 generate a push-pull force on the push-pull arm 332, facilitate the push-pull arm 332 to push the door plate 331, so that the plate body a3 rotates in a fulcrum type under the hinged connection of the rotating shaft a5 and the peripheral plate 31, the door plate 331 is folded and changed on the rear end face of the peripheral plate 31, the rear end face of the peripheral plate 31 is opened, the personnel can directly enter the inside of the peripheral plate 31 through the opening, overhaul the algorithm hardware 32, when the overhaul is completed, the convenient opening and closing structure 33 is reversely operated, so that the rear end face of the peripheral plate 31 is closed in time, the time and energy of the personnel opening the inside of the peripheral plate 31 are reduced, when the door plate 331 is closed, the heat sink a1 is started, and the front end is rotated at high speed, so that the hot gas in the inside of the peripheral plate 31 is accelerated and dispersed, the gas is cooled, and the plate body a3 is provided with a plurality of through openings a4, so that the hot gas is discharged outward through the through openings a4, so that the test table has excellent heat dissipation performance.

[0032] The control mode of the utility model is controlled by manual starting and closing switch, and the wiring diagram of power element and the provision of power supply belong to the common knowledge in the art, and the utility model is mainly used for protecting mechanical device, so the control mode and wiring arrangement of the utility model will not be explained in detail.

[0033] The control mode of the utility model is automatically controlled by controller, and the control circuit of controller can be realized by simple programming of the technical personnel in the art, and the provision of power supply also belongs to the common knowledge in the art, and the utility model is mainly used for protecting mechanical device, so the control mode and circuit connection of the utility model will not be explained in detail.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A non-linear dynamic testing rig characterised in that: Including nonlinear dynamic test assembly (1), fence (2) and experiment table (3), the fence (2) is welded on the top end surface of experiment table (3), the nonlinear dynamic test assembly (1) is active in the inside of fence (2), and the nonlinear dynamic test assembly (1) is located on the upper end of experiment table (3), and the lower side of nonlinear dynamic test assembly (1) is electrically connected with the inside of experiment table (3); The experiment table (3) includes peripheral plate (31), algorithm hardware (32) and convenient opening and closing structure (33), the algorithm hardware (32) is installed on the inside of peripheral plate (31), the side end of convenient opening and closing structure (33) is hinged with the edge end of peripheral plate (31), and the inside of convenient opening and closing structure (33) is bolted with the wall surface of peripheral plate (31) through screw.

2. A non-linear dynamics test rig as claimed in claim 1, wherein: The convenient opening and closing structure (33) includes door plate (331), push-pull arm (332), linkage rod (333), motor (334) and hanger (335), one end of push-pull arm (332) is hinged with door plate (331) and active cooperation, the other end of push-pull arm (332) is hinged with one end of linkage rod (333) and active cooperation, the other end of linkage rod (333) is connected with the output end of motor (334), and the motor (334) is installed in front of hanger (335).

3. A non-linear dynamics test rig as claimed in claim 2, characterised in that: The door plate (331) includes heat sink (a1), hollow frame (a2), plate body (a3), opening (a4) and pivot (a5), the heat sink (a1) is active in front of hollow frame (a2), the hollow frame (a2) and the plate body (a3) are integrated structure and located in the inside, the opening (a4) and the plate body (a3) are integrated structure and pass through the outer end surface position, the pivot (a5) penetrates through the inside of plate body (a3), and the rear end of heat sink (a1) is embedded in the inside of plate body (a3).

4. A non-linear dynamics test rig as claimed in claim 1, wherein: The algorithm hardware (32) is electrically connected with the nonlinear dynamic test assembly (1), the peripheral plate (31) is the structure surface with hole in the upper end surface, which facilitates the cooperation of algorithm hardware (32) and nonlinear dynamic test assembly (1), and completes the nonlinear dynamics test experiment.

5. A non-linear dynamics test rig as claimed in claim 2, wherein: One side end of the door plate (331) is hinged with the edge end of the peripheral plate (31).

6. A non-linear dynamics test rig as claimed in claim 2, wherein: The hanger (335) is installed on the inner wall surface of the peripheral plate (31) by screw.

7. A nonlinear dynamics test rig as claimed in claim 2, characterized in that: The push-pull arm (332) is active above the algorithm hardware (32), and the push-pull arm (332) is active in the upper position of the inside of the peripheral plate (31).

8. A non-linear dynamics test rig as claimed in claim 3, wherein: The plate body (a3) is hinged and installed on the edge end of the peripheral plate (31) through the pivot (a5), and the opening (a4) is an empty opening on the plate body (a3). The hanger (335) is installed on the inner wall surface of the peripheral plate (31) by screw.

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