CN213274761U - Super-huge highway transportation simulation test bench - Google Patents
Super-huge highway transportation simulation test bench Download PDFInfo
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- CN213274761U CN213274761U CN202022128610.3U CN202022128610U CN213274761U CN 213274761 U CN213274761 U CN 213274761U CN 202022128610 U CN202022128610 U CN 202022128610U CN 213274761 U CN213274761 U CN 213274761U
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Abstract
The utility model discloses an oversize highway transportation analogue test platform, the relatively poor problem of highway transportation analogue test platform can not test and the eccentric shaft synchronous accuracy especially big test work piece among the prior art has been solved, this oversize highway transportation analogue test platform includes the base, vibration platform and drive mechanism, through setting up a plurality of motors, improve holistic power, can carry out vibration test for oversize test work piece, the equipment of selecting is provided for the test work piece of oversize, every motor can drive an eccentric shaft alone simultaneously, and be provided with the synchronous motion of a plurality of motors of control system control, thereby realize the synchronous motion of a plurality of eccentric shafts, its synchronous accuracy is high, resonance effect is good, and need not set up belt synchronizing mechanism or sprocket synchronizing mechanism between the eccentric shaft, its structure is comparatively simple.
Description
Technical Field
The utility model relates to a transportation analogue test platform technical field refers in particular to an oversize highway transportation analogue test platform.
Background
The vibration test bench is mainly used for detecting and early warning the vibration resistance of a product in an expected use environment process. The road transportation simulation test board mainly can be divided into a horse race type vibration test board and a full simulation vibration test board, horse race type vibration tests are mostly adopted in the prior industry, and the vibration test board equipment in the prior market is that a single motor drives a main shaft through a gearbox, and other auxiliary shafts are driven to synchronously vibrate through chain wheel transmission or synchronous belt wheel transmission. The scheme is more suitable for being applied to small and medium-sized vibration test tables.
The reference document with the application number of 201720267244.5 discloses heavy simulated transportation vibration test equipment, which is provided with two eccentric shafts, wherein one eccentric shaft is connected with a motor through a synchronous belt speed reducing mechanism and drives the eccentric shaft through the motor, and a synchronous belt is arranged between the two eccentric shafts for synchronous transmission.
Disclosure of Invention
The utility model discloses having considered aforementioned problem and having made, utility model's aim at provides a super-huge highway transportation analogue test platform is applicable to the vibration test of large-scale or super-huge test piece, and synchronous precision is high, and the resonance that reaches is effectual.
In order to achieve the above object, the utility model provides an oversize highway transportation simulation test platform, include:
a base;
the vibration platform is arranged on the base;
the transmission mechanism comprises at least two servo motors and at least two eccentric shafts, each servo motor drives one eccentric shaft, the at least two eccentric shafts drive the vibration platform to do up-and-down reciprocating motion, and the at least two eccentric shafts synchronously rotate.
According to the super-huge type road transportation simulation test bench, four servo motors and four eccentric shafts are arranged, a motor base and a fixed bearing seat are arranged in the base, the servo motors are movably arranged on the motor base through adjusting limiting blocks, and two ends of the eccentric shafts are rotatably connected to the fixed bearing seat.
According to the simulation test bench for super-huge road transportation, the eccentric shaft comprises a rotating section and a vibrating section, the vibrating section is arranged at two ends of the rotating section, the diameter of the vibrating section is smaller than that of the rotating section, and two ends of the rotating section are movably clamped in the fixed bearing seat.
According to above-mentioned super-huge highway transportation simulation test platform, still include vibrations bearing frame, vibrations bearing frame sets up on vibrations section, just vibrations bearing frame upside with the shaking platform bottom meets.
According to the oversize road transportation simulation test bench, the output shaft of the servo motor is provided with the first transmission wheel, the rotating section is provided with the second transmission wheel, and the first transmission wheel is provided with the synchronous belt which is connected with the second transmission wheel.
According to the oversize road transportation simulation test bench, the diameter of the first driving wheel is smaller than that of the second driving wheel.
According to the simulation test bench for the transportation of the oversize highway, the simulation test bench further comprises a control system, and the control system is used for controlling the four servo motors to synchronously operate according to the preset rotating speed.
According to the oversize road transportation simulation test bench, the side edge of the vibration platform is provided with the guardrail.
According to the super-huge road transportation simulation test bench, the bottom of the vibration platform is provided with a plurality of reinforcing ribs.
The utility model discloses following beneficial effect has:
1. the eccentric shafts are respectively controlled by the servo motors, so that the barrier that the power and the scale of the original test bench are limited by the power of a single motor is broken, and the test bench can be used for testing large-sized or super-large-sized workpieces.
2. The control system is arranged to control each motor to run synchronously, so that each eccentric shaft is driven to rotate synchronously, the precision of the synchronous rotating mechanism is higher than that of a synchronous belt, and the resonance effect is better.
3. And a belt synchronous mechanism or a chain wheel synchronous mechanism is not required to be arranged between the eccentric shafts, so that the equipment can be simplified.
4. The side of the vibration platform is provided with a guardrail, so that the tested workpiece can be prevented from falling out of the vibration platform, and the safety performance is ensured.
5. The bottom of the vibration platform is provided with a plurality of reinforcing ribs, so that the strength of the vibration platform can be enhanced, and the vibration platform can bear large or extra-large workpieces.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a bottom schematic view of the overall structure of the present invention;
FIG. 3 is a schematic view of the transmission mechanism of the present invention;
fig. 4 is a schematic view of the transmission mechanism of the present invention.
Detailed Description
The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
As shown in fig. 1-4, an oversize road transport simulation test bench includes:
the base 100, the base 100 is used for supporting the vibration platform 200, and the base 100 comprises a plurality of bracing pieces and the lower extreme of base 100 meets with the ground, spreads into the ground with the impact force that vibration platform 200 produced into, guarantees holistic stability.
The vibration platform 200, the vibration platform 200 sets up on the base 100, and the vibration platform 200 is used for placing and bearing the test work piece to drive the vibration platform 200 by drive mechanism 300 and make up and down reciprocating motion.
The transmission mechanism 300, the transmission mechanism 300 includes at least two servo motors 310 and at least two eccentric shafts 320, each servo motor 310 drives one eccentric shaft 320, at least two eccentric shafts 320 drive the vibration platform 200 to reciprocate up and down, and at least two eccentric shafts 320 rotate synchronously. In the prior art, a transmission mechanism usually adopts a servo motor to drive a plurality of eccentric shafts to synchronously rotate, but the power provided by the servo motor is limited, when the weight of a test workpiece is larger, one servo motor cannot better provide vibration for a vibration platform, the amplitude of the vibration platform can possibly fail to reach the standard due to overlarge gravity, and one servo motor drives a plurality of eccentric shafts to synchronously rotate, mostly adopts a belt or a chain wheel and other synchronous devices, the synchronous precision of the synchronous device is poorer, a plurality of synchronous devices are required to be arranged, and the structure is more complex. In this embodiment, a plurality of servo motors 310 can be simultaneously used, and each servo motor 310 only controls one eccentric shaft 320 to rotate, so that the power provided by the plurality of servo motors 310 is higher, the method is suitable for large or extra-large test workpieces, and the plurality of eccentric shafts 320 can synchronously rotate only by controlling the synchronous motion of each servo motor 310, thereby saving synchronous mechanisms such as belts or chain wheels, and having simpler structure and higher synchronous precision.
Four servo motors 310 and four eccentric shafts 320 are arranged, a motor base 110 and a fixed bearing are arranged in the base 100, the servo motors 310 are movably arranged on the motor base 110 through adjusting limit blocks, two ends of each eccentric shaft 320 are rotatably connected to the fixed bearing bases 120, through practical tests, when the four servo motors 310 are arranged, the test bench can carry out vibration test on oversize test workpieces, therefore, the four servo motors 310 are most suitable to be arranged, the vibration test of the oversize test workpieces can be met, the motors and the electric energy cannot be wasted excessively, each servo motor 310 can move on the motor base 110 through adjusting the limit blocks, and the distance between each servo motor 310 and the eccentric shaft 320 can be adjusted.
The output shaft of the servo motor 310 is provided with a first driving wheel 311, the rotating section 321 is provided with a second driving wheel 323, the first driving wheel 311 is provided with a synchronous belt 311a connected with the second driving wheel 323, wherein the first driving wheel 311 is fixed on the output shaft, the second driving wheel 323 is fixed on the rotating section 321 of the eccentric shaft 320, when the servo motor 310 operates, the output shaft drives the first driving wheel 311 to rotate, the first driving wheel 311 drives the second driving wheel 323 to rotate through the synchronous belt 311a, and the second driving wheel 323 drives the eccentric shaft 320 to rotate.
The distance between the servo motor 310 and the eccentric shaft 320 can be adjusted to be close before the synchronous belt 311a is installed, so that the synchronous belt 311a can be conveniently installed, and the servo motor 310 is adjusted to be open by adjusting the limiting block after installation, so that the distance is increased, and the synchronous belt 311a is tightened. The same principle applies to the removal of the timing belt 311 a.
The diameter of the first driving wheel 311 is smaller than that of the second driving wheel 323, so that the second driving rotation driven by the first driving wheel 311 is that the pinion drives the bull gear to rotate, and the rotation speed can be reduced through the mechanism.
The eccentric shaft 320 includes a rotation section 321 and a vibration section 322, the vibration section 322 is disposed at two ends of the rotation section 321, and the diameter of the vibration section 322 is smaller than that of the rotation section 321, two ends of the rotation section 321 are movably clamped in the fixed bearing seat 120, because the second driving wheel 323 is disposed on the rotation section 321, the second driving wheel 323 will drive the rotation section 321 to rotate, the rotation section 321 drives the vibration section 322 to rotate, because the rotation section 321 and the vibration section 322 are fixedly disposed together, the angular velocity of the rotation section 321 is the same as that of the vibration section 322, because the diameters are different, the linear velocity of the vibration section 322 is smaller than that of the rotation section 321, when rotating, the vibration section 322 will generate vibration of a certain amplitude up and down, namely, two ends of the eccentric shaft 320 can.
The vibration test device further comprises a vibration bearing seat 330, the vibration bearing seat 330 is arranged on the vibration section 322, the upper side of the vibration bearing seat 330 is connected with the bottom of the vibration platform 200, the vibration section 322 moves up and down, and the vibration bearing seat 330 drives the vibration platform 200 to move up and down, so that a vibration test is provided for a test product.
The four eccentric shafts 320 synchronously rotate at the same speed and in the same rotating direction, so that the four eccentric shafts 320 synchronously rotate, the synchronous precision is high, and the vibration platform 200 synchronously rotates with the four eccentric shafts 320 to generate resonance.
The side of the vibration platform 200 is provided with the guardrail 210, the test workpiece can be strongly vibrated in the test process, the position of the test workpiece can be slightly moved, and under the condition, the test workpiece can be likely to slide down from the periphery, firstly, people can be hit to cause safety accidents, and secondly, the test workpiece can be damaged, so that the guardrail 210 must be installed on the side of the vibration platform 200 to prevent the test workpiece from falling.
The utility model provides a pair of super-huge highway transportation analogue test platform, through setting up a plurality of motors, improve holistic power, can carry out vibration test for super-huge test work piece, the test work piece for super-huge provides the equipment of selecting, every motor can drive an eccentric shaft alone simultaneously, and be provided with a plurality of motor synchronous motion of control system control, thereby realize the synchronous motion of a plurality of eccentric shafts, its synchronous accuracy is high, resonance effect is good, and need not set up hold-in range synchro mechanism or sprocket lazytongs between the eccentric shaft, its structure is comparatively simple.
The technical solutions of the present invention have been described in detail with reference to the accompanying drawings, and the described embodiments are used to help understand the ideas of the present invention. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the claims.
Claims (9)
1. The utility model provides an oversize highway transportation analogue test platform which characterized in that includes:
a base;
the vibration platform is arranged on the base;
the transmission mechanism comprises at least two servo motors and at least two eccentric shafts, each servo motor drives one eccentric shaft, the at least two eccentric shafts drive the vibration platform to do up-and-down reciprocating motion, and the at least two eccentric shafts synchronously rotate.
2. The oversize road transportation simulation test bench according to claim 1, wherein four servo motors and four eccentric shafts are arranged, a motor base and a fixed bearing seat are arranged in the base, the servo motors are movably arranged on the motor base through adjusting limit blocks, and two ends of the eccentric shafts are rotatably connected to the fixed bearing seat.
3. The oversize road transportation simulation test bench according to claim 2, wherein the eccentric shaft comprises a rotating section and a vibrating section, the vibrating section is arranged at two ends of the rotating section, the diameter of the vibrating section is smaller than that of the rotating section, and two ends of the rotating section are movably clamped in the fixed bearing seat.
4. The oversize road transportation simulation test bench according to claim 3, further comprising a vibration bearing seat, wherein the vibration bearing seat is arranged on the vibration section, and the upper side of the vibration bearing seat is connected with the bottom of the vibration platform.
5. The oversize road transportation simulation test bench according to claim 3, wherein a first transmission wheel is arranged on an output shaft of the servo motor, a second transmission wheel is arranged on the rotating section, and a synchronous belt arranged on the first transmission wheel is connected with the second transmission wheel.
6. The oversize road transport simulation test stand of claim 5, wherein the diameter of the first drive wheel is smaller than the diameter of the second drive wheel.
7. The oversize road transport simulation test bench according to claim 2, further comprising a control system for controlling the four servo motors to synchronously operate at a preset rotation speed.
8. The oversize road transport simulation test bed according to claim 1, wherein the side of the vibration platform is provided with a guardrail.
9. The oversize road transport simulation test bench according to claim 1, wherein the bottom of the vibration platform is provided with a plurality of reinforcing ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022128610.3U CN213274761U (en) | 2020-09-25 | 2020-09-25 | Super-huge highway transportation simulation test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022128610.3U CN213274761U (en) | 2020-09-25 | 2020-09-25 | Super-huge highway transportation simulation test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213274761U true CN213274761U (en) | 2021-05-25 |
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ID=75945227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022128610.3U Active CN213274761U (en) | 2020-09-25 | 2020-09-25 | Super-huge highway transportation simulation test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213274761U (en) |
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2020
- 2020-09-25 CN CN202022128610.3U patent/CN213274761U/en active Active
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