Vibrating table for researching vibration characteristics of oval packaging material
Technical Field
The invention relates to the field of vibration test equipment, in particular to a vibrating table for researching vibration characteristics of an elliptic packaging material.
Background
Vibration tests are used for testing the vibration resistance of specific products under expected conditions, and tests on physical objects or models are important ways for researching the product performance or the integrity and the precision of the products under actual conditions. For goods to be transported in express, vibration and impact usually occur during transportation and carrying, and faults of the goods, such as loosening of frames, package damage and the like, are likely to occur; therefore, the products which do not meet the requirements are required to be picked out through a vibration test; the existing clamp used in the vibration test has single structure and low working efficiency, and is difficult to meet the vibration test demands of commodities with different specifications.
The vibration test bed used at present is low in vibration randomness, the vibration amplitude is difficult to adjust, and different vibrations of products in the process of transportation and carrying cannot be well simulated, so that the requirements of a vibration test on a vibration source are difficult to meet.
Disclosure of Invention
In order to solve the problems, the invention provides a vibrating table for researching the vibration characteristics of an elliptic packaging material, which has high vibration randomness and can be convenient for adjusting the vibration amplitude.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the vibrating table comprises a clamping mechanism, two supporting rods, two clamps and a clamping device, wherein the clamping mechanism comprises a first seat body, two supporting rods, two clamps and a clamping device, the first seat body is of a hollow structure, two sliding grooves communicated with the inner cavity of the first seat body are formed in the top surface of the first seat body, the two sliding grooves are respectively positioned at two opposite ends of the first seat body, one ends of the two supporting rods respectively penetrate through the two sliding grooves in a sliding manner, the two clamps are respectively arranged at one ends of the two supporting rods far away from the first seat body, and at least one clamp is provided with an induction probe; the clamping device comprises a diamond-shaped expansion bracket, a clamping adjusting rod and a locking piece, wherein the diamond-shaped expansion bracket is positioned in the first seat body, one group of two opposite crossing points of the diamond-shaped expansion bracket are respectively connected with one end of two supporting rods positioned in the first seat body, and the other group of two opposite crossing points are in sliding connection with the first seat body through a fixing groove; the clamping adjusting rod is provided with a first thread, one side of the first seat body is provided with a threaded hole, one end of the clamping adjusting rod penetrates into the first seat body from the threaded hole and is in threaded connection with the threaded hole, and one end of the clamping adjusting rod, which is positioned in the first seat body, is connected with one supporting rod closest to the clamping adjusting rod; the locking piece is used for locking the clamping adjusting rod so as to prevent the clamping adjusting rod from rotating;
the buffer mechanism comprises a second seat body and a plurality of buffer springs, one end of each buffer spring is fixedly connected with the second seat body, and the other end of each buffer spring is fixedly connected with one side, far away from the clamp, of the first seat body;
the vibration mechanism comprises a third seat body, two supporting springs, a double-shaft motor, two transmission discs, two transmission rods and two spherical hinges, wherein the third seat body is positioned below the second seat body, the two supporting springs are respectively arranged at two opposite sides of the third seat body, and two ends of the supporting springs are respectively fixedly connected with the third seat body and the second seat body; the double-shaft motor is fixedly connected with the third seat body, and two transmission shafts of the double-shaft motor are perpendicular to connecting wires of the two supporting springs; the two transmission discs are fixedly connected with the two transmission shafts respectively, the transmission discs are provided with a plurality of radial adjusting grooves, and the adjusting grooves penetrate through the transmission discs and are provided with first clamping teeth;
the two transmission rods are respectively connected with the two transmission discs, one end of each transmission rod is connected with one of the adjusting grooves of the corresponding transmission disc through a connecting piece, and the other end of each transmission rod is connected with the third seat body through the spherical hinge;
the connecting piece comprises a fixing part, a clamping part and an abutting part, wherein the clamping part is mutually matched with the adjusting groove and is provided with a first rack meshed with the first clamping tooth; the two ends of the clamping part are fixedly connected with the fixing part and the abutting part respectively, the fixing part is positioned at one end of the transmission disc, which is close to the double-shaft motor, and is provided with a first nut, the first nut is in threaded connection with the fixing part, the first nut and the abutting part are respectively abutted against the two opposite end surfaces of the transmission disc, and the first rack is clamped with the first clamping tooth to fix the clamping part at any position in the regulating groove; and one end of the abutting part, which is far away from the clamping part, is rotationally connected with the transmission rod.
Further, the locking piece comprises an expansion sleeve and a locking ring, the expansion sleeve is sleeved outside the clamping adjusting rod, one end of the expansion sleeve is fixedly connected with the first seat body, a plurality of guide rails with arc-shaped cross sections are arranged on the inner hole wall of the expansion sleeve, the guide rails can be clamped with the first threads, an inclined surface is arranged on the outer wall of the expansion sleeve, and the inclined surface inclines towards the center of the expansion sleeve along the direction away from the first seat body; the locking ring is in threaded connection with the expansion sleeve.
Further, the fixture comprises a fixing frame, a fixing bolt and a fixture body, wherein the fixing frame is sleeved outside the supporting rod, a second clamping tooth is arranged on the inner wall of the fixing frame, a second rack matched with the second clamping tooth is arranged on the supporting rod, the fixing bolt is in threaded connection with the fixing frame, and one end of the fixing bolt penetrates through the fixing frame to press the supporting rod, so that the second clamping tooth and the second rack are mutually clamped; the clamp body is positioned at one side of the fixing frame, which is opposite to the fixing bolt, and is fixedly connected with the fixing frame.
Further, one end of the support rod, which is far away from the second rack, is provided with anti-slip glue.
Further, the clamp body comprises a first clamp arm, a second clamp arm, a connecting rod, a connecting ring and a second nut, wherein the first clamp arm and the second clamp arm are of arc structures, the first clamp arm is fixedly connected with the fixed frame, one end of the first clamp arm is fixedly connected with the connecting rod, a third rack is arranged at one end, close to the first clamp arm, of the connecting rod, and a second thread is arranged at the other end of the connecting rod; one end of the second clamping arm is fixedly connected with the connecting ring, a third latch meshed with the third rack is arranged on the inner wall of the connecting ring, the connecting ring is sleeved outside the connecting rod, and the second clamping arm and the first clamping arm are maintained at a preset angle through mutual clamping of the third latch and the third rack; the second nut is in threaded connection with the connecting rod and presses against the connecting ring.
Further, the double-shaft motor further comprises two supporting rods, the two supporting rods are respectively located at two ends of the double-shaft motor, one end of each supporting rod is fixedly connected with the third base, and the other end of each supporting rod is rotatably connected with the transmission shaft through a rotating bearing.
Further, guide grooves are further formed in two sides of the notch of each sliding groove, the guide grooves are fixedly connected with the first seat body, guide rails are correspondingly fixed on the two support rods, and the support rods are respectively connected with the guide grooves in a sliding mode through corresponding guide rails.
The beneficial effects of the invention are as follows:
1. the two opposite crossing points of one group of the diamond-shaped telescopic frames are respectively connected with the two supporting rods in a rotating way, the other group of the two opposite crossing points are connected with the first seat body in a sliding way through the fixed grooves, and the diamond-shaped telescopic frames can be contracted or extended by screwing the clamping adjusting rods, so that the two supporting rods are mutually close to or far away from the center, and the clamping or releasing of the clamp on a test object is realized. Under the action of the double-shaft motor, the two transmission discs rotate, and the two transmission rods are fixed in different horizontal line adjusting grooves through the connecting piece, so that the two transmission rods generate torsional vibration on the third seat body; when the two transmission rods are respectively positioned at different positions corresponding to the adjusting grooves, the rotation radiuses of the two transmission rods are different, and the vibration amplitudes of the two ends of the third seat body are different, so that the third seat body is twisted with higher randomness, and different vibrations of the product during transportation and carrying are simulated truly.
2. The fixing bolt is in threaded connection with the fixing frame, so that the fixing bolt can press the supporting rod, and the second clamping tooth of the fixing frame is clamped with the second rack of the supporting rod; the second racks at different positions are clamped through the second clamping teeth, so that the height of the fixing frame is adjusted, and the clamp body can clamp test objects at different heights. The first clamping arm and the second clamping arm are of arc-shaped structures, the second clamping arm is sleeved outside the connecting rod of the first clamping arm through the connecting ring, is clamped with the third clamping tooth through the third rack, and is pressed towards the first clamping arm through the second nut, so that a fixed clamping angle is formed between the first clamping arm and the second clamping arm, and the test piece can be firmly fixed on the first base body.
3. The guide rail is equipped with the insection with first screw thread block towards the one side of clamp regulation pole, and the another side is equipped with an inclined plane, can make through screwing into the expansion shell the one end that is close to the screw hole with the locking ring, the insection chucking first screw thread of guide rail realizes the fixed to clamp regulation pole, avoids first pedestal when the vibration, clamp regulation pole to appear becoming flexible and unstable to test piece centre gripping, effectively prevents experimental data production deviation.
Drawings
Fig. 1 is a schematic view of the structure of a vibrating table for vibration characteristics study of oval packaging material according to an articulated embodiment of the present invention.
Figure 2 is a top view of a vibrating table for vibration characterization studies of oval packaging materials according to an articulated embodiment of the present invention.
Fig. 3 is a schematic view showing a structure of a holding mechanism of a vibrating table for researching vibration characteristics of an oval packing material according to an articulated embodiment of the present invention.
Fig. 4 is a schematic view showing the structure of a clamping device of a vibrating table for researching vibration characteristics of an oval packing material according to an articulated embodiment of the present invention.
Fig. 5 is a schematic view showing a structure of a vibrating table for researching vibration characteristics of an oval packing material according to an articulated embodiment of the present invention.
Fig. 6 is a schematic view showing the structure of a driving disc of a vibrating table for researching vibration characteristics of an oval packing material according to an articulated embodiment of the present invention.
Figure 7 is a connection of a vibrating table for vibration characteristics study of oval packaging material according to an articulated embodiment of the invention.
In the figure, 1-first base, 11-sliding groove, 111-guiding groove, 12-fixing groove, 13-threaded hole, 2-supporting rod, 201-second rack, 202-anti-slip glue, 21-guide rail, 3-clamp, 301-inductive probe, 31-fixed frame, 311-second latch, 32-fixing bolt, 4-diamond-shaped expansion bracket, 41-clamping adjusting rod, 411-first thread, 5-second base, 51-buffer spring, 6-third base, 601-supporting spring, 61-double-shaft motor, 611-stand, 612-transmission shaft, 62-transmission disc, 621-adjusting groove, 622-first latch, 63-transmission rod, 64-spherical hinge, 65-connecting piece, 651-fixing part, 652-clamping part, 653-grounding part, 654-first rack, 655-first nut, 7-locking piece, 71-expansion sleeve, 72-locking ring, 73-guide rail, 731-inclined plane, 8-clamp body, 81-first clamp arm, 82-second clamp arm, 83-connecting rod, 831-third rack, 832-second screw thread, 84-connecting ring, 841-third latch, 85-second nut, 9-support rod, 91-rotating bearing.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
A vibrating table for researching vibration characteristics of oval packaging materials comprises a clamping mechanism, a buffer mechanism and a vibrating mechanism.
The clamping mechanism comprises a first seat body 1, two supporting rods 2, two clamps 3 and a clamping device.
The first seat body 1 is of a hollow structure, two sliding grooves 11 communicated with the inner cavity of the first seat body 1 are formed in the top surface of the first seat body 1, the two sliding grooves 11 are respectively located at two opposite ends of the first seat body 1, and in the embodiment, the two sliding grooves 11 are located on the same straight line. One end of each of the two support rods 2 is respectively and slidably penetrated by the two sliding grooves 11, the two clamps 3 are respectively arranged at one end of each of the two support rods 2 far away from the first seat body 1, and the inductive probe 301 is arranged on at least one clamp 3. The sensing probe 301 is used for collecting vibration acceleration of a test object. In this embodiment, guide grooves 111 are further disposed on two sides of the notch of each sliding groove 11, and the guide grooves 111 are fixedly connected with the first base 1. The two support rods 2 are correspondingly fixed with guide rails 21, and the support rods 2 are slidably connected with the corresponding guide grooves 111 through the guide rails 21 so as to guide the movement of the support rods 2 along the sliding grooves 11.
The clamping device comprises a diamond-shaped telescopic frame 4, a clamping adjusting rod 41 and a locking piece 7. The diamond-shaped expansion bracket 4 is positioned in the first seat body 1 and comprises two pairs of opposite intersecting points. One group of two opposite crossing points of the diamond-shaped expansion bracket 4 are connected with one end of the two support rods 2 positioned in the first seat body 1 respectively, and the other group of two opposite crossing points are connected with the first seat body 1 in a sliding way through the fixed grooves 12; the clamp adjusting lever 41 is provided with a first screw 411, one side of the first seat body 1 is provided with a screw hole 13, and one end of the clamp adjusting lever 41 penetrates into the first seat body 1 from the screw hole 13 and is in threaded connection with the screw hole 13. One end of the clamping adjusting rod 41 positioned in the first seat body 1 is fixedly connected with the supporting rod 2 closest to the clamping adjusting rod 41.
By screwing the clamp-adjusting lever 41 so that the support rod 2 rotatably connected to the clamp-adjusting lever 41 is pressed against or pulled by the diamond-shaped telescopic rod 4, the diamond-shaped telescopic rod 4 is contracted or extended, so that the support rod 2 away from the clamp-adjusting lever 41 moves accordingly. The two support rods 2 can be moved toward or away from each other toward the center by screwing the clamping adjusting rod 41, so that the clamping or releasing of the clamp 3 to the test object is realized.
The locking piece 7 is used for locking the clamp-adjusting lever 41 to prevent the clamp-adjusting lever 41 from rotating. The locking piece 7 comprises an expansion sleeve 71 and a locking ring 72, the expansion sleeve 71 is sleeved outside the clamping adjusting rod 41, one end of the expansion sleeve 71 is fixedly connected with the first seat body 1, a plurality of guide rails 73 with arc-shaped cross sections are arranged on the inner hole wall of the expansion sleeve 71, the guide rails 73 can be clamped with the first threads 411, an inclined plane 731 is arranged on the outer wall of the expansion sleeve 71, and the inclined plane 731 is inclined towards the center of the expansion sleeve 71 along the direction away from the first seat body 1; the inner hole wall of the locking ring 72 is provided with a bevel structure matched with the bevel 731 of the expansion sleeve 71, and the locking ring 72 is sleeved outside the expansion sleeve 71 through the inner hole of the locking ring and is in threaded connection with the expansion sleeve 71.
By screwing the locking ring 72 into one end of the expansion sleeve 71 close to the threaded hole 13, the guide rail 73 is pressed towards the first thread 411 of the clamping adjusting rod 41 under the action of the inclined plane 731, so that the clamping adjusting rod 41 is fixed, the phenomenon that the clamping adjusting rod 41 loosens to clamp a test piece and the deviation of experimental data is effectively prevented when the first seat body 1 vibrates is avoided.
The fixture 3 comprises a fixed frame 31, a fixed bolt 32 and a clamp body 8, wherein the fixed frame 31 is sleeved outside the supporting rod 2, a second clamping tooth 311 is arranged on the inner wall of the fixed frame 31, a second rack 201 which is matched with the second clamping tooth 311 is arranged on the supporting rod 2, the fixed bolt 32 is in threaded connection with the fixed frame 31, and one end of the fixed bolt 32 penetrates through the fixed frame 31 to press the supporting rod 2, so that the second clamping tooth 311 is mutually clamped with the second rack 201; the clamp body 8 is positioned at one side of the fixed frame 31, which is opposite to the fixed bolt 32, and is fixedly connected with the fixed frame 31.
The fixing bolt 32 is in threaded connection with the fixing frame 31, so that the fixing bolt 32 can press against the support rod 2, and the second clamping tooth 311 of the fixing frame 31 is clamped with the second rack 201 of the support rod 2; the second racks 201 at different positions are clamped by the second clamping teeth 311, so that the height of the fixed frame 31 is adjusted, and the clamp body 8 can clamp test objects at different heights.
In this embodiment, the end of the support rod 2 remote from the second rack 201 is provided with an anti-slip glue 202. Under the action of the anti-slip adhesive 202, the fixing bolt 32 can be prevented from being crushed against the support rod 2, and the friction force between the fixing bolt 32 and the support rod 2 can be increased.
The clamp body 8 comprises a first clamp arm 81, a second clamp arm 82, a connecting rod 83, a connecting ring 84 and a second nut 85, wherein the first clamp arm 81 and the second clamp arm 82 are of arc structures, the first clamp arm 81 is fixedly connected with the fixed frame 31, one end of the first clamp arm 81 is fixedly connected with the connecting rod 83, a third rack 831 is arranged at one end, close to the first clamp arm 81, of the connecting rod 83, and a second thread 832 is arranged at the other end; one end of the second clamping arm 82 is fixedly connected with the connecting ring 84, a third latch 841 meshed with the third rack 831 is arranged on the inner wall of the connecting ring 84, the connecting ring 84 is sleeved outside the connecting rod 83, and the connecting ring and the third rack 831 are mutually clamped through the third latch 841. The third latch 841 and the third rack 831 each extend along the length direction of the connecting lever 83. Maintaining the second clamp arm 82 in a desired angular position with the first clamp arm 81; the second nut 85 is screwed with the connecting rod 83 and pressed against the connecting ring 84.
The first clamping arm 81 and the second clamping arm 82 are arc-shaped, so that oval packaging materials and objects can be clamped conveniently.
The second clamping arm 82 is sleeved outside the connecting rod 82 of the first clamping arm 81 through the connecting ring 84, is clamped with the third clamping tooth 841 through the third rack 831, and fixes the connecting ring 84 on the connecting rod 83 through the second nut 85, so that a required clamping angle is maintained between the first clamping arm 81 and the second clamping arm 82, and a test piece can be stably fixed on the first seat body 1.
The buffer mechanism comprises a second seat body 5 and a plurality of buffer springs 51, one end of each buffer spring 51 is fixedly connected with the second seat body 5, and the other end of each buffer spring 51 is fixedly connected with one side, away from the clamp 3, of the first seat body 1. Under the action of the buffer spring 51, the randomness of the vibration mechanism to the vibration of the clamping mechanism is increased.
The vibration mechanism comprises a third seat 6, two supporting springs 601, a double-shaft motor 61, two transmission discs 62, two transmission rods 63 and two spherical hinges 64.
The third seat body 6 is located below the second seat body 5, and two supporting springs 601 are respectively arranged on two opposite sides of the third seat body 6, and two ends of the supporting springs are respectively fixedly connected with the third seat body 6 and the second seat body 5.
The double-shaft motor 61 is fixedly connected with the third seat body 6, and two transmission shafts 612 of the double-shaft motor 61 are perpendicular to connecting lines of the two supporting springs 601; the two driving disks 62 are fixedly connected with the two driving shafts 612 respectively, the driving disks 62 are provided with a plurality of radial adjusting grooves 621, and the adjusting grooves 621 penetrate through the driving disks 62 and are provided with first clamping teeth 622.
The two transmission rods 63 are respectively connected with the two sides of the two transmission discs 62, one end of each transmission rod 63 is connected with one of the adjusting grooves 621 of the corresponding transmission disc 62 through a connecting piece 65, and the other end is connected with the third seat body 6 through a spherical hinge 64.
Under the action of the spherical hinge 64, the radial thrust and traction of the transmission rod 63 can be accurately applied to the second seat body 5, so that the effective transmission of vibration force is ensured. Because the transmission rod 63 is connected with the second seat body 5 through the spherical hinge 64, the second seat body 5 can be free to turn, and under the action of the supporting spring 601, the second seat body 5 can be ensured to be arranged on the third seat body 6, and the transmission of vibration force can not be influenced.
Under the action of the double-shaft motor 61, the two transmission discs 62 rotate, and the two transmission rods 63 are fixed in the different horizontal line adjusting grooves 621 through the connecting piece 65, so that the two transmission rods 63 generate torsional vibration to the third seat body 6. When the two transmission rods 63 are respectively located at different positions corresponding to the adjusting grooves 621, the rotation radiuses of the two transmission rods 63 are different, and the vibration amplitudes of the two ends of the third seat 6 are different, so that the third seat 6 is twisted with high randomness, and different vibrations of the product during transportation and carrying are simulated truly.
The connecting piece 65 comprises a fixing part 651, a clamping part 652 and an abutting part 653, wherein the clamping part 652 is mutually matched with the adjusting groove 621, and a first rack 654 meshed with the first clamping tooth 622 is arranged; the two ends of the clamping part 652 are fixedly connected with the fixing part 651 and the abutting part 653 respectively, the fixing part 651 is positioned at one end of the transmission disc 62 close to the double-shaft motor 61 and is provided with a first nut 655, the first nut 655 is in threaded connection with the fixing part 651, the first nut 655 and the abutting part 653 are respectively abutted against the two opposite end surfaces of the transmission disc 62, and the first rack 654 is clamped with the first clamping teeth 622 to fix the clamping part 652 at any position in the adjusting groove 621; one end of the abutting portion 653 away from the engaging portion 652 is rotatably connected to the transmission lever 63.
When the transmission rod 63 needs to be replaced in the connected adjustment groove 621 and adjusted in the position of the adjustment groove 621, the first nut 655 can be screwed to disengage the first nut 655 from the fixing portion 651, so that the transmission rod 63 can be pulled to disengage the engaging portion 652 from the adjustment groove 621. According to the requirement, the clamping portion 652 is inserted into the adjusting groove 621 at a desired position, so that the first rack 654 is clamped with the first latch 622, and the first nut 655 is screwed down, so that the clamping portion 652 is fixed in the adjusting groove 621.
In this embodiment, the two support rods 9 are further included, the two support rods 9 are respectively located at two ends of the dual-shaft motor 61, one end of each support rod 9 is fixedly connected with the third seat 6, and the other end of each support rod is rotatably connected with the transmission shaft 612 through the rotating bearing 91. Because the transmission rod 63 is connected with the eccentric shaft of the transmission disc 62, the transmission shaft 612 can generate larger vibration, so that the double-shaft motor 61 is damaged, the transmission shaft 612 can obtain supporting force under the action of the supporting rod 9, the influence on the double-shaft motor 61 is reduced, and the service life of the double-shaft motor 61 is prolonged.
When the invention is used, the fixing bolt 32 is unscrewed according to the volume of a test object, the fixing frame 31 is adjusted to a proper position of the support rod 2, the clamp body 8 can be positioned at a proper height, the fixing bolt 32 is screwed, the fixing bolt 32 is pressed towards the support rod 2, the second clamping tooth 311 is clamped with the second rack 201, and the fixing of the fixing frame 31 is completed.
The included angle between the first clamping arm 81 and the second clamping arm 82 is adjusted, so that the clamping body 8 can be matched with the edge of the oval test object, and the connecting ring 84 is fixed on the connecting rod 83 through the second nut 85, so that a fixed clamping angle is formed between the first clamping arm 81 and the second clamping arm 82.
By screwing the clamping adjusting rod 41, the diamond-shaped telescopic rod 4 contracts or extends, and the two support rods 2 approach or separate from each other toward the center, so that the clamp body 8 can clamp a test object. The end rail 73 of the locking ring 72 screwed into the expansion sleeve 71 near the screw hole 13 is pressed against the first screw 411 of the clamp-adjusting lever 41, and the fixation of the clamp-adjusting lever 41 is completed.
According to the torsional vibration of the required vibration, the clamping portion 652 is inserted into the required position of the adjusting groove 621 by selecting the required adjusting groove 621, so that the first rack 654 is clamped with the first clamping tooth 622, and the first nut 655 is screwed, so that the clamping portion 652 is fixed in the adjusting groove 621.