CN216955542U

CN216955542U - Sample impact experimental device

Info

Publication number: CN216955542U
Application number: CN202122963721.0U
Authority: CN
Inventors: 徐亮; 吴博; 匡莉; 戴婷; 庞承焕; 李卫领; 张善猛; 宁红涛; 肖星
Original assignee: Guogao High Polymer Material Industry Innovation Center Co Ltd
Current assignee: Guogao High Polymer Material Industry Innovation Center Co Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-07-12
Anticipated expiration: 2031-11-29

Abstract

The utility model relates to the technical field of high-speed impact experiments, and discloses a sample impact experiment device which comprises a detection table, an emission mechanism and a conveying mechanism, wherein the detection table is provided with a detection table body; the detection table is provided with a placing position for placing a sample; the launching mechanism comprises a fixed disc, a first driver, a pushing part and a launching part, wherein an annular track is arranged on the fixed disc, the launching part is positioned on the track, the first driver is arranged on the fixed disc, the first driver drives the pushing part to move along the track, the pushing part pushes the launching part to move along the track, and the track is provided with a gap; conveying mechanism includes barrel, second driver and is used for sheltering from the piece that blocks of breach, the drive of second driver the piece is stretched into or is stretched out the breach, the entry of barrel is located breach department and orientation the breach, the position is placed to the export orientation of barrel. The speed of the launching member can be adjusted at will, and high-speed impact on the sample can be easily realized.

Description

Sample impact experimental device

Technical Field

The utility model relates to the technical field of high-speed impact experiments, in particular to a sample impact experiment device.

Background

In the production process of many industrial products, the strength of parts is required to be paid attention to, and especially some industrial products used outdoors need to ensure that the parts can still be normally used when being impacted by a striker, and especially small stones scattered on a road surface can be inevitably splashed during the high-speed driving process of an automobile. The splashed small stones strike the surfaces of the material parts, especially the parts used for the chassis of the automobile. The generally splashed stones have a twofold impact, namely scratch and damage to the paint on the surface of the automobile, and more seriously damage the anti-corrosion coating of the automobile, particularly chassis parts, and cause a reduction in the mechanical properties of the structure. The size of the stones, the number of the stones, the impact angle and the ambient temperature may damage the automobile parts to different degrees, and in order to know the impact resistance of the chassis parts, the chassis parts are usually subjected to impact tests.

The conventional impact test method comprises free-fall impact and multi-axis impact, wherein the free-fall impact is to fix parts above a tool clamp according to an assembly state, if low-temperature impact is required, the assembled parts are generally placed in a high-low temperature test box and stored at minus 30 ℃ or minus 40 ℃ for a certain time, and the parts are taken out to complete the low-temperature falling ball impact test within 30 s. There are two main problems with this solution: firstly, when a workpiece needs to be tested for a plurality of points or low-temperature impact properties at different angles, the test process is difficult to complete within 30s, and after the workpiece is taken out, the surface of the part is contacted with relatively hot air, so that the temperature is continuously increased, which obviously cannot represent the real impact property in the environment of-30 ℃ or-40 ℃; secondly, the free falling body impact test generally cannot reach a higher impact speed, because the final impact speed is determined by the impact height, the impact height is generally 1m, the corresponding impact speed is 4.5m/s, and the impact speed is converted into 16km/h, obviously, the low-temperature ball falling impact test can only be used for simulating and evaluating the impact test of the road stones on the automobile parts under the low-speed driving working condition.

The principle of multi-axis impact is that the gravitational potential energy generated by free fall and the elastic potential energy generated by the compression of a spring configured in the equipment are linearly superposed and converted into the kinetic energy of an impact part to generate high-speed impact on a sample. However, the main problem existing at present is that the multi-axis impact is generally in the vertical direction, and high-speed impact in the vertical direction or the horizontal direction is difficult to realize. In addition, the limit speed of the multi-axis impact device industry is 20m/s, but the actual device generally cannot achieve such a high impact speed, usually 12m/s, which is converted into 42km/h, obviously, the speed also cannot achieve 120km/h, even 150km/h, and this will limit the application range of the device to a certain extent.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: when parts of industrial products are subjected to an impact test, the upper limit of the impact speed is lower.

In order to solve the technical problem, the utility model provides a sample impact experimental device which comprises a detection table, an emission mechanism and a conveying mechanism, wherein the detection table comprises a detection table body; the detection table is provided with a placing position for placing a sample; the launching mechanism comprises a fixed disc, a first driver, a pushing part and a launching part, wherein an annular track is arranged on the fixed disc, the launching part is positioned on the track, the first driver is arranged on the fixed disc, the first driver drives the pushing part to move along the track, the pushing part pushes the launching part to move along the track, and the track is provided with a gap; conveying mechanism includes barrel, second driver and is used for sheltering from the piece that blocks of breach, the drive of second driver the piece is stretched into or is stretched out the breach, the entry of barrel is located breach department and orientation the breach, the export orientation of barrel place the position.

Further, still include the protection casing, the protection casing cover is in examine test table outside, the perforation has been seted up to the protection casing, the barrel passes the perforation.

Further, the protection casing includes skin and inlayer, the skin cover is in outside the inlayer, leave the space between skin and the inlayer, skin with a perforation has respectively been seted up to the inlayer.

Further, still include the environment case, the protection casing is located in the environment case.

Further, the export of barrel is equipped with the tachymeter.

Further, the detection table comprises a tool support, a rotating mechanism and a lifting mechanism, the rotating mechanism is installed on the lifting mechanism, the lifting mechanism drives the rotating mechanism to lift, the tool support is installed on the rotating mechanism, the rotating mechanism drives the tool support to rotate, and the placement position is located on the tool support.

Further, the launching mechanism further comprises a swing rod, the pushing portion is located at one end of the swing rod, and the first driver drives the swing rod to rotate.

Further, the track is vertically arranged, and the notch is located at the bottom end of the track.

Further, the outlet of the barrel is provided with a protective sleeve, and the outer surface of the protective sleeve is inclined relative to the extending direction of the barrel.

Further, the inner wall of the gun barrel is provided with a lubricating oil layer.

Compared with the prior art, the sample impact experimental device provided by the embodiment of the utility model has the beneficial effects that: the first driver drives the pushing part to move, the pushing part is used for driving the launching part to do circular motion, the motion speed of the launching part can be improved only by improving the output power of the first driver, so that the situation that the impact object impacts the sample at high speed can be simulated easily, the motion speed of the launching part can be adjusted at will only by adjusting the output power of the first driver, and the impact of the surrounding environment is hardly influenced.

Drawings

FIG. 1 is a schematic structural diagram of one embodiment of the present invention;

FIG. 2 is a schematic view of the notch when open;

fig. 3 is a schematic structural view of the test stand.

In the figure, 1, a detection table; 11. a tool support; 12. a rotation mechanism; 13. a lifting mechanism; 2. a launching mechanism; 21. fixing the disc; 211. a track; 212. a wall body; 213. a notch; 22. a first driver; 23. a pushing part; 24. a launcher; 25. a swing rod; 3. a conveying mechanism; 31. a barrel; 32. a second driver; 33. a blocking member; 34. a protective sleeve; 4. a protective cover; 41. perforating; 5. and (4) an environment box.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model, but are not intended to limit the scope of the utility model.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", etc., used herein to indicate the orientation or positional relationship, are based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 and 3, a sample impact testing apparatus according to a preferred embodiment of the present invention includes a testing table 1, a launching mechanism 2 and a conveying mechanism 3, wherein the launching mechanism 2 ejects a launching member 24 towards the testing table 1 through the conveying mechanism 3, and the launching member 24 impacts a sample on the testing table 1, so as to implement a sample impact test.

As shown in FIGS. 1-2, the detection table 1 is provided with a placing position for placing a sample, and the automobile part can be fixed on the placing position as the sample through bolts or through a pressing plate on the placing position. The launching mechanism 2 comprises a fixed disk 21, a first driver 22, a pushing part 23 and a launching part 24, the fixed disk 21 is circular, a circular track 211 is arranged on the fixed disk 21, the track 211 comprises a wall body 212 extending along the edge of the fixed disk 21, the wall body 212 is perpendicular to the surface of the fixed disk 21, and the wall body 212 is used for blocking the launching part 24 from flying out of the fixed disk 21. The launching member 24 is located on the track 211, in this embodiment, the launching member 24 is a steel ball, and in other embodiments, the launching member 24 may be a smooth object with other shapes.

As shown in fig. 1-2, in the present embodiment, the first driver 22 is a servo motor, the first driver 22 is installed on the fixed disk 21, the first driver 22 drives the pushing portion 23 to move along the track 211, when the pushing portion 23 contacts the emitting element 24, the pushing portion 23 pushes the emitting element 24 to move along the track 211, at this time, the emitting element 24 makes a circular motion, the moving speed of the emitting element 24 is determined by the moving speed of the pushing portion 23, and the moving speed of the pushing portion 23 is determined by the output power of the first driver 22.

As shown in fig. 1-2, the track 211 is provided with a notch 213, and the size of the notch 213 is larger than that of the launching member 24, so that the launching member 24 can pass through the notch 213. The transport mechanism 3 comprises a barrel 31, a second driver 32 and a blocking member 33 for blocking the gap 213, the bore of the barrel 31 being larger than the longest cross-sectional dimension of the projectile 24 to ensure that the projectile 24 enters the barrel 31 and rolls or slides in the direction of extension of the barrel 31. The second driver 32 drives the blocking member 33 to extend into or extend out of the notch 213, the second driver may be an electric cylinder, the piston rod of the electric cylinder drives the blocking member 33 to extend into or extend out of the notch 213, or may be a rotating motor, and the rotating motor drives the blocking member 33 to rotate, so that the blocking member 33 extends into or extends out of the notch 213. The entrance of the barrel 31 is located at the notch 213 and faces the notch 213, and the exit of the barrel 31 faces the placing position, wherein the entrance of the barrel 31 may be on the tangent of the track 211, and if the track 211 is longitudinally disposed, the entrance of the barrel 31 may be slightly lower than the tangent of the track 211.

The working process of the utility model is as follows: when the blocking member 33 extends into the notch 213, the blocking member 33 blocks the notch 213, and the shapes of the blocking member 33 and the notch 213 are matched, so that the track 211 forms a complete circle, the launching member 24 can continuously perform circular motion along the track 211 under the action of the pushing part 23, and the first driver 22 can increase the moving speed of the pushing part 23, thereby increasing the side moving speed of the launching member 24; when the blocking member 33 protrudes from the notch 213, the launching member 24 is pushed by the pushing portion 23, and the launching member 24 is thrown out of the notch 213, enters the barrel 31 from the entrance of the barrel 31, rolls along the extending direction of the barrel 31, flies out of the exit of the barrel 31, and finally collides with the sample placed on the position.

To sum up, the embodiment of the present invention provides a sample impact experiment apparatus, in which a first driver 22 drives a pushing part 23 to move, the pushing part 23 drives a launching element 24 to make a circular motion, the motion speed of the launching element 24 can be increased only by increasing the output power of the first driver 22, so that the situation that an impacting object impacts a sample at a high speed can be easily simulated, and the motion speed of the launching element 24 can be adjusted at will only by adjusting the output power of the first driver 22, which is hardly influenced by the surrounding environment.

As shown in fig. 2 to 3, the sample impact experiment apparatus further includes a protective cover 4, the protective cover 4 is sleeved outside the detection table 1, a through hole 41 is formed in the protective cover 4, the barrel 31 passes through the through hole 41, the launching member 24 flies outward due to a reaction force after impacting a sample, and the protective cover 4 can block the launching member 24 from flying outward, so as to ensure the safety of workers. The protection casing 4 includes skin and inlayer, outer cover is in outside the inlayer, leave the space between skin and the inlayer, it is outer with a perforation 41 has respectively been seted up to the inlayer, mutually supports through skin and inlayer, provides dual guarantee for staff's safety, and leaves the space between skin and the inlayer, and the deformation headspace that produces when the inlayer receives the striking of launching member 24 can be regarded as in the space. The outer layer comprises a frame and a protection plate, wherein the frame is formed by welding iron pipes and is approximately cuboid, the protection plate is fixed in the frame, the protection plate surrounds the cuboid, and the protection plate is an acrylic plate. The inlayer is made by rubber, the inlayer can adopt metal support to support the design, also can directly use the rubber shell of cuboid, wherein the skin with a door that can open and shut need be reserved to the inlayer, and convenience of customers adorns the sample on examining test table 1. Sample impact experimental apparatus still includes environment case 5, protection casing 4 is located in environment case 5, environment case 5 is used for temperature regulation for the sample can realize the high-speed impact test under the different temperature conditions such as high temperature, low temperature and normal atmospheric temperature, environment case 5 can also adjust humidity and illumination intensity, in addition, protection casing 4 can be used for the protection to environment case 5.

As shown in fig. 3, the inspection station 1 includes a tool holder 11, a rotating mechanism 12 and a lifting mechanism 13, the rotating mechanism 12 is installed on the lifting mechanism 13, the lifting mechanism 13 drives the rotating mechanism 12 to lift, the tool holder 11 is installed on the rotating mechanism 12, the rotating mechanism 12 drives the tool holder 11 to rotate in multiple angles, and the placing position is located on the tool holder 11. The lifting mechanism 13 may be a telescopic cylinder, and the rotating mechanism 12 may be a gyroscope with a double ring structure or a ball hinge. The rotating mechanism 12 is matched with the lifting mechanism 13, so that high-speed impact tests of samples at different positions and different angles are realized.

As shown in fig. 1-2, the launching mechanism 2 further includes a swing rod 25, the pushing portion 23 is located at one end of the swing rod 25, a rotor of the first driver 22 is connected to the swing rod 25, the first driver 22 controls the swing rod 25 to make a circular motion, and the pushing portion 23 on the swing rod 25 makes a circular motion therewith. In this embodiment, the track 211 is longitudinally arranged, the notch 213 is located at the bottom end of the track 211, and when the blocking member 33 blocks the notch 213, the emitting member 24 makes a circular motion on a vertical plane. In other embodiments, the track 211 may be laterally disposed such that the launching member 24 moves in a circular motion in a horizontal plane when the blocking member 33 blocks the notch 213.

As shown in fig. 1-2, the outlet of the barrel 31 is provided with a protective sleeve 34, which is sleeved outside the outlet of the barrel 31, the protective sleeve 34 is made of rubber, the outer surface of the protective sleeve 34 is inclined relative to the extending direction of the barrel 31, a guiding design is formed relative to the outlet of the barrel 31, when the projectile 24 rebounds to the outlet of the barrel 31 after impacting a sample, the protective sleeve 34 can absorb the impact of the projectile 24, and the guiding design is utilized to change the rebounding direction track of the projectile 24, so that the projectile 24 impacts the protective cover 4, and the barrel 31 is protected. The exit of barrel 31 is equipped with the tachymeter, conveniently detects the speed of projectile 24. The inner wall of the barrel 31 is coated with a layer of lubricating oil to form a layer of lubricating oil, which reduces friction and kinetic energy loss when the projectile 24 passes through the barrel 31.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A sample impact testing apparatus, comprising:

the detection platform is provided with a placing position for placing a sample;

the launching mechanism comprises a fixed disc, a first driver, a pushing part and a launching part, wherein an annular track is arranged on the fixed disc, the launching part is positioned on the track, the first driver is installed on the fixed disc, the first driver drives the pushing part to move along the track, the pushing part pushes the launching part to move along the track, and the track is provided with a gap; and

conveying mechanism, conveying mechanism includes barrel, second driver and is used for sheltering from the piece that blocks of breach, the drive of second driver block and stretch into or stretch out the breach, the entry of barrel is located breach department and orientation the breach, the export orientation of barrel place the position.

2. The sample impact testing device according to claim 1, wherein: the protection cover is sleeved outside the detection table, a through hole is formed in the protection cover, and the barrel penetrates through the through hole.

3. The sample impact testing device according to claim 2, wherein: the protective cover comprises an outer layer and an inner layer, the outer layer is sleeved outside the inner layer, a gap is reserved between the outer layer and the inner layer, and the outer layer and the inner layer are respectively provided with a through hole.

4. The sample impact testing device according to claim 2, wherein: still include the environment case, the protection casing is located the environment incasement.

5. The sample impact testing device according to claim 1, wherein: and a speed measuring instrument is arranged at the outlet of the gun barrel.

6. The sample impact testing device according to claim 1, wherein: the detection table comprises a tool support, a rotating mechanism and a lifting mechanism, the rotating mechanism is installed on the lifting mechanism, the lifting mechanism drives the rotating mechanism to lift, the tool support is installed on the rotating mechanism, the rotating mechanism drives the tool support to rotate, and the placement position is located on the tool support.

7. The sample impact testing device according to claim 1, wherein: the launching mechanism further comprises a swing rod, the pushing portion is located at one end of the swing rod, and the first driver drives the swing rod to rotate.

8. The sample impact testing device according to claim 1, wherein: the track is vertically arranged, and the notch is located at the bottom end of the track.

9. The sample impact testing device according to claim 1, wherein: the outlet of the barrel is provided with a protective sleeve, and the outer surface of the protective sleeve is inclined relative to the extending direction of the barrel.

10. The sample impact testing device according to claim 1, wherein: and a lubricating oil layer is arranged on the inner wall of the gun barrel.