CN221765160U - A drop weight impact test device and test system - Google Patents

Abstract

The utility model relates to the technical field of a assembleable drop-hammer impact test device, and specifically to an assembleable drop-hammer impact test device and a test system; the test device comprises: a support structure, on which a height adjustment structure is provided; a magnetic fixing platform, which is arranged on the support structure, and a through hole is provided on the magnetic fixing platform; a guide rail, which is arranged on the support structure and is arranged corresponding to the through hole; a magnetic connecting plate, which is arranged at the bottom of the magnetic fixing platform and is located in the guide rail; a piezoelectric force detection element, which is connected to the magnetic connecting plate, and a hammer head is provided at the bottom of the piezoelectric force detection element; a control structure, which is arranged on the support structure and connected to the hammer head. The hammer head is automatically raised by the control structure, the height adjustment structure can adjust the impact height, the hammer head can be replaced with hammer heads of different weights, different diameters, different shapes, and different materials, and the bracket height can be assembled and adjusted, which has better adaptability and can meet the impact test needs in multiple scenarios.

Description

A drop weight impact test device and test system

Technical Field

The utility model relates to the technical field of a assembleable drop-weight impact test device, in particular to a assembleable drop-weight impact test device and a test system.

Background Art

The drop weight impact tester is a device widely used in the field of material mechanics testing. It is mainly used to measure the force and deformation that concrete materials can withstand when they are impacted.

The working principle is to use the free fall of a heavy object (i.e. a drop hammer) to hit the test piece from a certain height, and to evaluate the impact resistance of the component by measuring the deformation and degree of damage of the test piece after the impact. During the test, the drop hammer has a certain initial velocity to ensure that a sufficient force is applied to the component to produce a typical impact effect. The drop hammer impact test of the corresponding component is completed through the assembleable drop hammer impact test device, and the component failure form, impact force time history curve, and displacement time history curve results under different parameter outputs are obtained. The corresponding data graphs are observed, and the stress performance of the component under the drop hammer impact load is simulated. The crack development laws and phenomena of the corresponding specimens are analyzed and summarized, and the response of the corresponding component during the test is analyzed.

The gravity drop hammer impact test system in existing laboratories generally adopts a sliding single-guide mode, with a minimum hammer head counterweight of about 400kg or more, which can meet the impact test requirements of larger-sized beams, plates, columns and other components. However, for thin plates and thin-walled structures with smaller component sizes, the counterweight of the drop hammer impact test system is too high and does not meet the testing requirements of small components.

Utility Model Content

Therefore, the technical problem to be solved by the present invention is to overcome the problem that the gravity-type drop-weight impact test system in the prior art has too high a counterweight for thin plates and thin-walled structures with smaller component sizes, and does not meet the testing requirements of small components, thereby providing an assembleable drop-weight impact test device and test system.

In order to solve the above technical problems, the utility model provides an assembleable drop hammer impact test device, including: a support structure, on which a height adjustment structure is provided; a magnetic fixing platform, which is arranged on the support structure, and a through hole is provided on the magnetic fixing platform; a guide rail, which is arranged on the support structure and corresponds to the through hole; a magnetic connecting plate, which is arranged at the bottom of the magnetic fixing platform and is located in the guide rail; a piezoelectric force detection element, which is connected to the magnetic connecting plate, and a hammer head is provided at the bottom of the piezoelectric force detection element; a control structure, which is arranged on the support structure and connected to the hammer head; a support, which is arranged at the bottom of the support structure, and a test piece is provided on the support.

Furthermore, the control structure includes: an installation platform connected to the support structure, and a driving member is provided on the installation platform; a pulley is provided on the support structure, and a steel wire rope is wound around the pulley, one end of the steel wire rope is connected to the driving member, and the other end is connected to the hammer head.

Furthermore, the driving member is a motor.

Furthermore, it also includes a fixer, which is arranged in the middle of the support structure and connected to the guide rail.

Furthermore, the support structure includes: a base having two parts and being symmetrically arranged; a support frame arranged on the base, and the magnetic fixing platform is arranged on the support frame through an inclined rod.

Furthermore, a middle cross bar is provided in the middle of the support frame, and the fixer is provided on the middle cross bar.

Furthermore, the height adjustment structure is a plurality of adjustment holes provided on the side wall of the support frame.

Furthermore, there are two supports which are spaced apart from each other, and the test piece is placed on the two supports.

Furthermore, the piezoelectric force detection element is a piezoelectric force sensor.

The utility model also provides a assembleable drop-weight impact test system, comprising an assembleable drop-weight impact test device.

The technical solution of this utility model has the following advantages:

1. The utility model provides an assembleable drop hammer impact test device, comprising: a support structure, on which a height adjustment structure is provided; a magnetic fixing platform, which is arranged on the support structure and has a through hole on the magnetic fixing platform; a guide rail, which is arranged on the support structure and corresponds to the through hole; a magnetic connecting plate, which is arranged at the bottom of the magnetic fixing platform and is located inside the guide rail; a piezoelectric force detection element, which is connected to the magnetic connecting plate and has a hammer head at the bottom of the piezoelectric force detection element; a control structure, which is arranged on the support structure and connected to the hammer head; a support, which is arranged at the bottom of the support structure and has a test piece on the support.

By setting a height adjustment structure on the support structure, it is easy to adjust the magnetic fixing platform, so that the test can be carried out at different heights. At the same time, a guide rail is set on the support structure to facilitate the lifting and lowering movement of the hammer head and the piezoelectric force detection element on the guide rail, which plays a guiding role and prevents the hammer head from being offset. In addition, the control structure is used to lift and lower the hammer head, and finally the hammer head acts on the test piece.

The overall design structure of the assembleable drop hammer impact test device is simple and easy to process. The raw materials used in the processing are common materials such as steel plates, which use less materials and have low processing and production costs. At the same time, the supporting structure is a hollow design in the middle, which reduces the overall weight of the test device and also reduces the waste of resources. No wastewater, waste gas, etc. are generated during the processing and manufacturing process, which meets environmental protection requirements and has good social benefits.

The utility model's assembleable drop hammer impact device takes up very little space. The control structure in the test device can be controlled by both remote control and remote control. Simple guardrails can be arranged around it to ensure the safety, convenience and accuracy of loading. After loading is completed, the hammer head can be automatically raised by the control structure. The height adjustment structure can adjust the impact height. At the same time, the hammer head can be replaced with hammer heads of different weights, diameters, shapes and materials to meet the impact test requirements in multiple scenarios. Compared with the general large-scale drop hammer impact test device in the laboratory, it has lower energy consumption, more energy-saving, lower cost and construction cost, higher corresponding cost performance, simple structure and can be reused, and has great promotion value.

2. The utility model provides an assembleable drop hammer impact test device, and the control structure includes: a mounting platform, which is connected to the supporting structure, and a driving member is provided on the mounting platform; a pulley, which is provided on the supporting structure, and a steel wire rope is wound on the pulley, one end of the steel wire rope is connected to the driving member, and the other end is connected to the hammer head.

The installation platform is connected to the support structure, which provides an installation position for the driver and ensures the installation stability of the driver. At the same time, the pulley is set to facilitate the winding of the wire rope, which can be used to drive the release or tightening of the wire rope, so that the hammer head can drop to impact the test piece or return to the initial position.

3. The assembleable drop weight impact test device provided by the utility model further includes a fixture, which is arranged in the middle of the support structure and connected to the guide rail. The setting of the fixture facilitates the installation of the guide rail on the fixture, thereby ensuring the installation stability of the guide rail.

The utility model summary is provided to introduce a selection of concepts in a simplified form, which will be further described in the following detailed description. The utility model summary is not intended to identify key features or essential features of the present disclosure, nor is it intended to limit the scope of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic structural diagram of an assembleable drop weight impact test device provided by the present invention;

FIG2 is a front view of the assembleable drop weight impact test device provided by the utility model;

FIG3 is a left side view of the assembleable drop weight impact test device provided by the present invention;

FIG. 4 is a top view of the assembleable drop weight impact test device provided by the present invention.

Description of reference numerals:

1. Support structure; 2. Height adjustment structure; 3. Magnetic fixing platform; 4. Through hole; 5. Guide rail; 6. Magnetic connecting plate; 7. Piezoelectric force detection element; 8. Hammer; 9. Support; 10. Test piece; 11. Installation platform; 12. Driving part; 13. Pulley; 14. Wire rope; 15. Fixer; 16. Base; 17. Support frame; 18. Diagonal rod; 19. Middle cross bar; 20. Fixing hole.

DETAILED DESCRIPTION

In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

In the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

The disclosure below provides many different embodiments or examples to realize different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure can repeat reference numbers and/or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and/or settings discussed. In addition, the present disclosure provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and/or the use of other materials.

The preferred embodiments of the present disclosure are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

Please refer to Figures 1 to 4, the utility model provides an assembleable drop hammer impact test device, including: a support structure 1, on which a height adjustment structure 2 is provided; a magnetic fixing platform 3, which is arranged on the support structure 1, and a through hole 4 is provided on the magnetic fixing platform 3; a guide rail 5, which is arranged on the support structure 1 and corresponding to the through hole 4; a magnetic connecting plate 6, which is arranged at the bottom of the magnetic fixing platform 3 and is located in the guide rail 5; a piezoelectric force detection element 7, which is connected to the magnetic connecting plate 6, and a hammer head 8 is provided at the bottom of the piezoelectric force detection element 7; a control structure, which is arranged on the support structure 1 and connected to the hammer head 8; a support 9, which is arranged at the bottom of the support structure 1, and a test piece 10 is provided on the support 9.

By setting a height adjustment structure 2 on the support structure 1, it is convenient to adjust the magnetic fixing platform 3, so that the test can be carried out at different heights. At the same time, a guide rail 5 is set on the support structure 1, so that the hammer head 8 and the piezoelectric force detection element 7 can be lifted and lowered on the guide rail 5, which plays a guiding role and prevents the hammer head 8 from being offset. In addition, the control structure is used to lift and lower the hammer head 8, and finally the hammer head 8 acts on the test piece 10.

The overall design structure of the assembleable drop hammer impact test device is simple and easy to process. The raw materials used in the processing are common materials such as steel plates, which use less materials and have low processing and production costs. At the same time, the support structure 1 is a hollow design in the middle, which reduces the overall weight of the test device and also reduces the waste of resources. No wastewater, waste gas, etc. are generated during the processing and manufacturing process, which meets environmental protection requirements and has good social benefits.

The utility model's assembleable drop hammer impact device takes up very little space. The control structure in the test device can be controlled by a remote or remote controller. Simple guardrails can be arranged around it to ensure the safety, convenience, and accuracy of loading. After loading is completed, the hammer head 8 can be automatically raised by the control structure. The height adjustment structure 2 can adjust the impact height. At the same time, the hammer head 8 can be replaced with hammer heads 8 of different weights, diameters, shapes, and materials to meet the impact test requirements in multiple scenarios. Compared with the general large-scale drop hammer impact test device in the laboratory, it has lower energy consumption, more energy-saving, lower cost and construction cost, higher corresponding cost performance, simple structure and can be reused, and has great promotion value.

In some optional embodiments, the control structure includes: an installation platform 11, connected to the support structure 1, and a driving member 12 is provided on the installation platform 11; a pulley 13, provided on the support structure 1, and a steel wire rope 14 is wound around the pulley 13, one end of the steel wire rope 14 is connected to the driving member 12, and the other end is connected to the hammer head 8.

The mounting platform 11 is connected to the support structure 1, which provides a mounting position for the driving member 12 and ensures the mounting stability of the driving member 12. At the same time, the setting of the pulley 13 facilitates the winding of the wire rope 14, that is, the driving member 12 can be used to drive the release or tightening of the wire rope 14, so that the hammer head 8 can be lowered to impact the test piece 10, or return to the initial position.

Wherein, the driving component 12 is a motor.

In some optional embodiments, the assembleable drop weight impact test device further includes a fixture 15 , wherein the fixture 15 is disposed in the middle of the support structure 1 , and the fixture 15 is connected to the guide rail 5 .

The arrangement of the fixture 15 facilitates the installation of the guide rail 5 on the fixture 15 , thereby ensuring the installation stability of the guide rail 5 .

In some optional embodiments, the support structure 1 includes: a base 16 having two parts and symmetrically arranged; a support frame 17 disposed on the base 16 , and the magnetic fixing platform 3 is disposed on the support frame 17 via a diagonal rod 18 .

The base 16 is fixed to the laboratory slideway by bolts, thereby fixing the setting position of the support frame 17. The magnetic fixing platform 3 is installed on the support frame 17 by an inclined rod 18.

Meanwhile, a middle cross bar 19 is provided in the middle of the support frame 17 , and the fixer 15 is provided on the middle cross bar 19 .

In this embodiment, the height adjustment structure 2 is a plurality of adjustment holes provided on the side wall of the support frame 17. The arrangement of the adjustment holes can adjust the magnetic fixing platform 3 and the mounting platform 11 to a specific height, and finally fix them with bolts.

In some optional embodiments, there are two supports 9 which are arranged at intervals, and the test piece 10 is placed on the two supports 9 .

Wherein, the piezoelectric force detection element 7 is a piezoelectric force sensor.

The use of the assembleable drop weight impact test device includes the following steps:

Step 1: Fix the base 16 to the laboratory slide through the fixing holes 20 and bolts, and install the support 9 and the test piece 10;

Step 2: Fix the guide rail 5 to the middle cross bar 19 through the guide fixer 15;

Step 3: According to the test requirements, adjust the inclined rod 18, the magnetic fixing platform 3, and the mounting platform 11 to a specific height through the adjustment holes and fix them with bolts;

Step 4: Connect the hammer head 8, the piezoelectric force detection element 7, and the magnetic connection plate 6 as a whole, and connect the whole to the driving member 12 through the wire rope 14;

Step 5: remotely control the control switch to eliminate the magnetism of the magnetic fixing platform 3 and the magnetic connecting plate 6, and at the same time press the driving member 12 to release the wire rope 14, so that the hammer head 8, the piezoelectric force detection element 7, and the magnetic connecting plate 6 fall freely and impact the test piece 10;

Step 6: Obtain the failure form, impact force time history curve, displacement time history curve and other results of the test piece 10 through laboratory acquisition equipment;

Step 7: After the test, the driving member 12 is used to control the steel wire rope 14 to raise the hammer head 8, the piezoelectric force detection element 7, and the magnetic connecting plate 6 as a whole to the starting height through the guide rail 5, thereby ending the test or conducting a second (or multiple) impact test.

The utility model also provides a assembleable drop-weight impact test system, comprising the assembleable drop-weight impact test device.

Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims (10)

1. A assembleable drop weight impact test device, characterized in that it comprises: A support structure (1), wherein a height adjustment structure (2) is provided on the support structure (1); A magnetic fixing platform (3) is arranged on the supporting structure (1), and a through hole (4) is provided on the magnetic fixing platform (3); A guide rail (5) is provided on the supporting structure (1) and is arranged corresponding to the through hole (4); A magnetic connection plate (6) is arranged at the bottom of the magnetic fixing platform (3) and is located inside the guide rail (5); A piezoelectric force detection element (7) is connected to the magnetic connection plate (6), and a hammer head (8) is provided at the bottom of the piezoelectric force detection element (7); A control structure, disposed on the support structure (1) and connected to the hammer head (8); A support (9) is arranged at the bottom of the supporting structure (1), and a test piece (10) is arranged on the support (9). 2. The assembleable drop weight impact test device according to claim 1, characterized in that the control structure comprises: A mounting platform (11) connected to the supporting structure (1), wherein a driving member (12) is provided on the mounting platform (11); The pulley (13) is arranged on the supporting structure (1), and a steel wire rope (14) is wound on the pulley (13). One end of the steel wire rope (14) is connected to the driving member (12), and the other end is connected to the hammer head (8). 3. The assembleable drop weight impact test device according to claim 2, characterized in that the driving member (12) is a motor. 4. The assembleable drop weight impact test device according to any one of claims 1 to 3, characterized in that it also includes a fixture (15), the fixture (15) is arranged in the middle of the support structure (1), and the fixture (15) is connected to the guide rail (5). 5. The assembleable drop weight impact test device according to claim 4, characterized in that the support structure (1) comprises: The base (16) has two parts and is symmetrically arranged; The support frame (17) is arranged on the base (16), and the magnetic fixing platform (3) is arranged on the support frame (17) via an inclined tie rod (18). 6. The assembleable drop weight impact test device according to claim 5 is characterized in that a middle cross bar (19) is provided in the middle of the support frame (17), and the fixer (15) is provided on the middle cross bar (19). 7. The assembleable drop weight impact test device according to claim 6, characterized in that the height adjustment structure (2) is a plurality of adjustment holes provided on the side wall of the support frame (17). 8. The assembleable drop weight impact test device according to any one of claims 5 to 7, characterized in that there are two supports (9) which are arranged at intervals, and the test piece (10) is placed on the two supports (9). 9. The assembleable drop weight impact test device according to claim 8, characterized in that the piezoelectric force detection element (7) is a piezoelectric force sensor. 10. An assembleable drop weight impact test system, characterized by comprising the assembleable drop weight impact test device according to any one of claims 1 to 9.