CN218157358U

CN218157358U - Polymer material mechanical property test equipment

Info

Publication number: CN218157358U
Application number: CN202222276230.3U
Authority: CN
Inventors: 毛承皓
Original assignee: Dongguan Hongfu New Materials Co ltd
Current assignee: Dongguan Hongfu New Materials Co ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2022-12-27
Anticipated expiration: 2032-08-29

Abstract

The utility model discloses a high polymer material mechanical property test device, which comprises a base, a test bed and a support rod, wherein an energy indicating disc is arranged at the top end of the support rod, one end of a swing rod is arranged at the position of the support rod corresponding to the circle center of the energy indicating disc in a rotating way, the other end of the swing rod is connected with a pendulum bob, one side of the pendulum bob facing the test bed is provided with a knife edge, and the knife edge can be detachably connected on the pendulum bob; the knife edge is arranged on the knife edge block, the knife edge block is connected with the interior of the pendulum bob in a sliding mode, the exterior of the knife edge block is flush with the outer wall of the pendulum bob, and a pressing piece is arranged on the outer wall of the pendulum bob and close to the outer edge of the knife edge block; the casting die includes the clamp plate with the outside edge crimping of edge of a knife piece, and the both ends of clamp plate all rotate with the one end of bull stick is perpendicular to be connected, and the other end and the pendulum bob of bull stick rotate perpendicularly to be connected. The utility model adopts the above structure's macromolecular material mechanical properties test equipment, detachable set up the edge of a knife piece, can be when the edge of a knife on the edge of a knife piece is damaged only change the edge of a knife piece can, reduced test cost.

Description

Macromolecular material mechanical properties test equipment

Technical Field

The utility model relates to a macromolecular material mechanical properties tests technical field, especially relates to a macromolecular material mechanical properties test equipment.

Background

The polymer materials include plastics, rubbers, fibers, films, adhesives, and coatings. It has the advantages of light weight, abundant raw materials, convenient processing, good performance and the like, thereby being widely applied. In order to understand the mechanical properties of the polymer material, the polymer material needs to be tested by using special equipment. The impact resistance of the polymer material is generally tested by means of a simple beam tester. The existing simply supported beam testing machine has the following defects: 1. during testing, the knife edge directly impacts the sample, the knife edge is easy to damage due to long-term impact, impact testing is affected, and at the moment, due to the lack of the knife edge replacing mechanism, the whole swing unit needs to be replaced once the knife edge is damaged, so that the testing cost is increased; 2. during testing, a sample is directly placed on the test bed, and the placing stability of the sample is poor due to the lack of a sample clamping mechanism; 3. the lack of a sample splash guard allows the severed sample to splash, presenting an operational risk.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a macromolecular material mechanical properties test equipment, detachable set up the edge of a knife piece, can be when the edge of a knife on the edge of a knife piece is damaged only change the edge of a knife piece can, reduced test cost.

In order to achieve the purpose, the utility model provides a mechanical property testing device for high polymer materials, which comprises a base, a test bed and a support rod, wherein the test bed and the support rod are arranged at the top end of the base, the support rod and the test bed are positioned on the same vertical line, an energy indicating disc is arranged at the top end of the support rod, one end of a swing rod is rotatably arranged at the position of the support rod corresponding to the circle center of the energy indicating disc, the other end of the swing rod is connected with a pendulum bob, one side of the pendulum bob, which faces the test bed, is provided with a knife edge, and the knife edge is detachably connected to the pendulum bob;

the knife edge is arranged on the knife edge block, the inside of the knife edge block is connected with the pendulum bob in a sliding manner, the outside of the knife edge block is flush with the outer wall of the pendulum bob, and a pressing piece is arranged on the outer wall of the pendulum bob and close to the outer edge of the knife edge block;

the pressing piece comprises a pressing plate in pressure connection with the outer edge of the knife edge block, two ends of the pressing plate are vertically and rotatably connected with one end of the rotating rod, and the other end of the rotating rod is vertically and rotatably connected with the pendulum bob.

Preferably, the knife edge block is a square structure with a trapezoidal knife edge formed inside, and the pressing pieces are arranged on the pendulum bob and correspond to two symmetrical sides of the outside of the knife edge block.

Preferably, a clamping mechanism is arranged on the test bed and at a position aligned with the pendulum bob, and the clamping mechanism comprises a fixed block fixed on the test bed and a moving block which is arranged on the test bed in a sliding manner through an optical axis and corresponds to the fixed block;

the moving block is in threaded connection with one end of the screw rod, and the other end of the screw rod is connected with the test bed.

Preferably, still be provided with splashproof mechanism on the base, splashproof mechanism the test bench the fixture with the edge of a knife all is located same water flat line.

Preferably, splashproof mechanism including set up in collection box on the base, the left and right sides of collection box and with one side of test bench symmetry all is provided with the splashproof net.

Therefore, the utility model discloses following beneficial effect has:

1. by detachably arranging the knife edge block, only the knife edge block can be replaced when a knife edge on the knife edge block is damaged, so that the test cost is reduced.

2. Through fixture centre gripping sample, improved the stability of sample.

3. By arranging the splash-proof mechanism, the splash of the cut samples can be avoided, and the operation safety is improved.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of a mechanical property testing apparatus for polymer materials according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a pendulum bob of a mechanical property testing device for polymer materials according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a moving block of a device for testing mechanical properties of polymer materials according to an embodiment of the present invention.

Wherein: 1. a base; 2. a test stand; 3. a moving block; 4. a sample; 5. a knife edge; 6. a knife edge block; 7. a pendulum bob; 8. a swing rod; 9. an energy indicating dial; 10. a support bar; 11. a splash-proof net; 12. a recycling bin; 13. a fixed block; 14. pressing a plate; 15. a rotating rod; 16. a screw; 17. an optical axis.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed embodiments and the specific operation processes are provided, but the protection scope of the present invention is not limited to the present embodiment.

Fig. 1 is a schematic structural diagram of a device for testing mechanical properties of polymer materials according to an embodiment of the present invention; fig. 2 is a schematic view of a pendulum structure of a device for testing mechanical properties of polymer materials according to an embodiment of the present invention; fig. 3 is a schematic diagram of a moving block structure of a high polymer material mechanical property testing device according to an embodiment of the present invention, it should be noted that fig. 1 is a front view of the device, fig. 2 and fig. 3 are side views of components, as shown in fig. 1 to fig. 3, the structure of the present invention includes a base 1, a testing stand 2 and a supporting rod 10, which are disposed on the top end of the base 1, the supporting rod 10 and the testing stand 2 are located on the same vertical line, an energy indicating dial 99 is disposed on the top end of the supporting rod 10, one end of a swing rod 8 is rotatably disposed at a position of the supporting rod 10 corresponding to the center of the energy indicating dial 99, the other end of the swing rod 8 is connected to a pendulum mass 7, a knife edge 5 is disposed on one side of the pendulum mass 7 facing the testing stand 2, and the knife edge 5 is detachably connected to the pendulum mass 7; the knife edge 5 is arranged on the knife edge block 6, the pendulum bob 7 of the knife edge block 6 is connected in a sliding manner, the outer part of the knife edge block 6 is flush with the outer wall of the pendulum bob 7, and a pressing piece is arranged on the outer wall of the pendulum bob 7 and close to the outer edge of the knife edge block 6; the casting die includes the clamp plate 14 with the outside edge crimping of edge piece 6, the both ends of clamp plate 14 all rotate with the one end of bull stick 15 is perpendicular to be connected, the other end and the pendulum 7 of bull stick 15 are perpendicular to rotate and are connected, similar parallelogram link structure promptly, during the dismouting, at first rotate clamp plate 14 for clamp plate 14 rotates to pendulum 7 surface, slide into pendulum 7 with edge piece 6, reverse rotation clamp plate 14 can be with edge piece 6 fixed to inside pendulum 7, thereby realized edge piece 6's change.

In this embodiment, the knife edge block 6 is a square structure with a trapezoidal knife edge 5 formed inside, and pressing parts are arranged on the pendulum bob 7 and at positions corresponding to two symmetrical sides of the outside of the knife edge block 6, so that the positioning is more stable.

Preferably, a clamping mechanism is arranged on the test bed 2 and aligned with the pendulum bob 7, and comprises a fixed block 13 fixed on the test bed 2 and a movable block 3 which is arranged on the test bed 2 in a sliding manner through an optical axis 17 and corresponds to the fixed block 13; the moving block 3 is in threaded connection with one end of the screw rod 16, the other end of the screw rod 16 is connected with the test bed 2, during testing, the sample 4 is firstly placed between the fixed block 13 and the moving block 3, the screw rod 16 is rotated to drive the moving block 3 to move towards the fixed block 13 until the sample 4 is clamped tightly, the swing rod 8 can be pulled open by a certain angle and then loosened, and impact testing is conducted.

Preferably, the base 1 is further provided with a splash-proof mechanism, and the splash-proof mechanism, the test bed 2, the clamping mechanism and the knife edge 5 are all located on the same horizontal line. Preferably, splashproof mechanism is including setting up collection box 12 on base 1, and the left and right sides of collection box 12 and all be provided with splashproof net 11 with one side of test bench 2 symmetry, and after sample 4 was hit absolutely, the main part still blocked on fixture, and the part is hit garrulous fritter sample 4, can fall into collection box 12 after hitting splashproof net 11 in, has avoided sample 4 to splash.

Therefore, the utility model adopts the above structure's macromolecular material mechanical properties test equipment, detachable set up the edge of a knife piece, can be when the edge of a knife on the edge of a knife piece is damaged only change the edge of a knife piece can, reduced test cost.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.

Claims

1. The utility model provides a macromolecular material mechanical properties test equipment, include the base and set up in the test bench and the bracing piece on base top, the bracing piece with the test bench is located same vertical line, the bracing piece top is provided with the energy indicator dish, the bracing piece corresponds the one end that is provided with the pendulum rod is rotated to the position in the energy indicator dish centre of a circle, the other end of pendulum rod is connected with the pendulum bob, the pendulum bob orientation one side of test bench is provided with the edge of a knife, its characterized in that: the knife edge is detachably connected to the pendulum bob;

2. The high polymer material mechanical property testing device of claim 1, characterized in that: the knife edge block is of a square structure with a trapezoidal knife edge arranged inside, and the pressing pieces are arranged on the pendulum bob and correspond to two symmetrical sides of the outside of the knife edge block.

3. The high polymer material mechanical property testing device of claim 1, characterized in that: a clamping mechanism is arranged on the test bed and aligned to the pendulum bob, and comprises a fixed block fixed on the test bed and a moving block which is arranged on the test bed in a sliding manner through an optical axis and corresponds to the fixed block;

4. The high polymer material mechanical property testing device according to claim 3, characterized in that: still be provided with splashproof mechanism on the base, splashproof mechanism the test bench fixture with the edge of a knife all is located same water flat line.

5. The high polymer material mechanical property testing device according to claim 4, wherein: the splash proof mechanism including set up in collection box on the base, the left and right sides of collection box and with one side of test bench symmetry all is provided with the splashproof net.