CN221765160U

CN221765160U - Can assemble drop hammer impact test device, test system

Info

Publication number: CN221765160U
Application number: CN202420231247.3U
Authority: CN
Inventors: 周威; 者瑞; 李志豪
Original assignee: Harbin Institute of Technology
Current assignee: Harbin Institute of Technology
Priority date: 2024-01-30
Filing date: 2024-01-30
Publication date: 2024-09-24
Anticipated expiration: 2034-01-30

Abstract

The utility model relates to the technical field of an assembled drop hammer impact test device, in particular to an assembled drop hammer impact test device and an assembled drop hammer impact test system; the test device comprises: the support structure is provided with a height adjusting structure; the magnetic fixing platform is arranged on the supporting structure and is provided with a through hole; the guide rail is arranged on the supporting structure and corresponds to the through hole; the magnetic connecting plate is arranged at the bottom of the magnetic fixing platform and positioned in the guide rail; the piezoelectric force detection element is connected with the magnetic connecting plate, and a hammer head is arranged at the bottom of the piezoelectric force detection element; the control structure is arranged on the supporting structure and connected with the hammer head. The automatic lifting of the hammer head is realized through controlling the structural control, the height adjusting structure can adjust the impact height, the hammer heads with different weights, different diameters, different shapes and different materials, the bracket height can be assembled and adjusted, the better adaptability is realized, and the impact test requirements under multiple scenes can be met.

Description

Can assemble drop hammer impact test device, test system

Technical Field

The utility model relates to the technical field of an assembled drop hammer impact test device, in particular to an assembled drop hammer impact test device and an assembled drop hammer impact test system.

Background

The drop hammer impact tester is equipment widely applied to the field of material mechanics tests, and can be mainly used for measuring the force and deformation conditions of concrete materials when the concrete materials are impacted.

The working principle is that the free falling body of a weight (namely a falling weight) is used for impacting a test piece from a certain height, and the impact resistance of the component is evaluated by measuring the deformation and the damage degree of the test piece after being impacted. During testing, 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 device can be assembled to complete the drop hammer impact test of the corresponding component, the damage form, impact force time curve and displacement time curve results of the component under different parameter outputs are obtained, the corresponding data graph is observed, the stress performance of the component under the action of the drop hammer impact load is simulated, the crack development rule and phenomenon of the corresponding test piece are analyzed and summarized, and the response of the corresponding component in the test process is analyzed.

The gravity type drop hammer impact test system in the existing laboratory generally adopts a sliding type single guide rail mode, the lowest hammer head counterweight is more than 400kg, impact tests under different requirements of components such as beams, plates and columns with larger sizes can be met, but the counterweight of the drop hammer impact test system is too high for thin plates and thin wall structures with smaller component sizes, and the test requirements of small components are not met.

Disclosure of utility model

Therefore, the utility model aims to solve the technical problems that the weight of the gravity drop impact test system is too high for a thin plate and a thin wall structure with smaller component size and the test requirement of a small component is not met in the gravity drop impact test system in the prior art, so that the utility model provides the assembled drop impact test device and the assembled drop impact test system.

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

Further, the manipulation structure includes: the mounting platform is connected with the supporting structure and is provided with a driving piece; the pulley is arranged on the supporting structure, a steel wire rope is wound on the pulley, one end of the steel wire rope is connected with the driving piece, and the other end of the steel wire rope is connected with the hammer head.

Further, the driving piece is a motor.

Further, the device also comprises a fixer, wherein the fixer is arranged in the middle of the supporting structure and is connected with the guide rail.

Further, the support structure includes: the base is provided with two bases and is symmetrically arranged; the support frame is arranged on the base, and the magnetic fixing platform is arranged on the support frame through the diagonal draw bars.

Further, a middle cross rod is arranged in the middle of the support frame, and the fixer is arranged on the middle cross rod.

Further, the height adjusting structure is a plurality of adjusting holes arranged on the side wall of the supporting frame.

Further, the number of the supports is two, the supports are arranged at intervals, and the test piece is arranged on the two supports in a building mode.

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

The utility model also provides an assembled drop hammer impact test system, which comprises an assembled drop hammer impact test device.

The technical scheme of the utility model has the following advantages:

1. The utility model provides an assembled drop hammer impact test device, which comprises: the support structure is provided with a height adjusting structure; the magnetic fixing platform is arranged on the supporting structure and is provided with a through hole; the guide rail is arranged on the supporting structure and corresponds to the through hole; the magnetic connecting plate is arranged at the bottom of the magnetic fixing platform and is positioned in the guide rail; the piezoelectric force detection element is connected with the magnetic connecting plate, and a hammer head is arranged at the bottom of the piezoelectric force detection element; the control structure is arranged on the supporting structure and is connected with the hammer head; the support is arranged at the bottom of the supporting structure, and a test piece is arranged on the support.

Through setting up high adjustment structure on bearing structure to be convenient for adjust magnetism fixed platform, can test at different heights. Meanwhile, the guide rail is arranged on the supporting structure, so that the hammer head and the piezoelectric type detection element can conveniently lift and move on the guide rail, the guiding effect is achieved, and the phenomenon that the hammer head is deviated is avoided. And, utilize to control the structure and carry out the elevating movement of tup, finally the tup is used on the test piece.

The assembly drop hammer impact test device has the advantages of simple integral design structure, easy processing, less used materials and lower processing production cost, and the raw materials used for processing are common materials such as steel plates. Meanwhile, the supporting structure is in a hollow-out design in the middle, so that the whole dead weight of the test device is reduced, the waste of resources is reduced, no waste water, waste gas and the like are generated in the processing, production and manufacturing processes, the environment-friendly requirement is met, and good social benefits are achieved.

The assembled drop hammer impact device has small occupied space, the control structure in the test device can be controlled by a remote controller or a double control mode, the simple protective guard can be distributed around the test device, the safety, convenience and accuracy of loading can be ensured, the automatic lifting of the hammer head can be realized by controlling the control structure after loading is finished, the impact height can be adjusted by the height adjusting structure, and the hammer heads with different weights, different diameters, different shapes and different materials can be replaced by the hammer head, so that the impact test requirements under multiple scenes are met. Compared with a general large drop hammer impact test device in a laboratory, the device has the advantages of lower energy consumption, more energy conservation, lower cost and fabrication cost, higher corresponding cost performance, simple structure, repeated utilization and great popularization value.

2. The utility model provides an assembled drop hammer impact test device, which comprises: the mounting platform is connected with the supporting structure and is provided with a driving piece; the pulley is arranged on the supporting structure, a steel wire rope is wound on the pulley, one end of the steel wire rope is connected with the driving piece, and the other end of the steel wire rope is connected with the hammer head.

The mounting platform is connected with the supporting structure, so that the mounting position is provided for the driving piece, and the mounting stability of the driving piece is ensured. Meanwhile, the pulley is arranged, so that the steel wire rope can be wound conveniently, and the driving piece can be used for working to drive the release or the tightening of the steel wire rope, so that the hammer head can descend to impact the test piece or return to the initial position.

3. The utility model provides an assembled drop hammer impact test device which also comprises a fixer, wherein the fixer is arranged in the middle of a supporting structure and is connected with a guide rail. The fixing device is convenient to install the guide rail on the fixing device, and the installation stability of the guide rail is guaranteed.

The summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the disclosure, nor is it intended to be used to limit the scope of the disclosure.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a drop hammer impact test device capable of being assembled;

FIG. 2 is a front view of an assembled drop hammer impact test apparatus provided by the present utility model;

FIG. 3 is a left side view of the assembled drop hammer impact test apparatus provided by the present utility model;

fig. 4 is a top view of an assembled drop hammer impact test apparatus provided by the present utility model.

Reference numerals illustrate:

1. A support structure; 2. a height adjustment structure; 3. a magnetic fixed platform; 4. a through hole; 5. a guide rail; 6. a magnetic connection plate; 7. a piezoelectric force detection element; 8. a hammer head; 9. a support; 10. a test piece; 11. a mounting platform; 12. a driving member; 13. a pulley; 14. a wire rope; 15. a holder; 16. a base; 17. a support frame; 18. a diagonal draw bar; 19. a middle cross bar; 20. and a fixing hole.

Detailed Description

Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present disclosure. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.

In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present disclosure. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present disclosure, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present disclosure, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, or communicable with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.

In this disclosure, unless expressly stated or limited otherwise, a first feature being "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different structures of the disclosure. In order to simplify the present disclosure, components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present disclosure. Furthermore, the present disclosure may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The preferred embodiments of the present disclosure are described below in conjunction with the accompanying drawings, it being understood that the preferred embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present disclosure.

Referring to fig. 1 to 4, the present utility model provides an assembled drop hammer impact test device, comprising: a supporting structure 1, wherein a height adjusting structure 2 is arranged on the supporting structure 1; the magnetic fixing platform 3 is arranged on the supporting structure 1, and a through hole 4 is formed in the magnetic fixing platform 3; the guide rail 5 is arranged on the supporting structure 1 and corresponds to the through hole 4; the magnetic connecting plate 6 is arranged at the bottom of the magnetic fixing platform 3 and is positioned in the guide rail 5; a piezoelectric force detection element 7 connected with the magnetic connection plate 6, and a hammer head 8 is arranged at the bottom of the piezoelectric force detection element 7; the control structure is arranged on the supporting structure 1 and is connected with the hammer head 8; and the support 9 is arranged at the bottom of the supporting structure 1, and a test piece 10 is arranged on the support 9.

By arranging the height adjusting structure 2 on the supporting structure 1, the magnetic fixing platform 3 can be conveniently adjusted, and tests can be conducted at different heights. Meanwhile, the guide rail 5 is arranged on the supporting structure 1, so that the hammer 8 and the piezoelectric type detection element 7 can conveniently lift and move on the guide rail 5, the guiding effect is achieved, and the phenomenon that the hammer 8 is deviated is avoided. And, the lifting movement of the hammer head 8 is performed by using the manipulation structure, and finally the hammer head 8 acts on the test piece 10.

The assembly drop hammer impact test device has the advantages of simple integral design structure, easy processing, less used materials and lower processing production cost, and the raw materials used for processing are common materials such as steel plates. Meanwhile, the supporting structure 1 is designed in a hollow manner, so that the whole dead weight of the test device is reduced, the waste of resources is reduced, no waste water, waste gas and the like are generated in the processing, production and manufacturing processes, the environment-friendly requirement is met, and good social benefits are achieved.

The assembled drop hammer impact device has small occupied space, the control structure in the test device can be controlled by a remote controller or a double control mode, the simple protective guard can be distributed around the test device, the safety, convenience and accuracy of loading can be ensured, the automatic lifting of the hammer head 8 can be realized by controlling the control structure after loading is finished, the impact height can be adjusted by the height adjusting structure 2, and meanwhile, the hammer head 8 with different weights, different diameters, different shapes and different materials can be replaced by the hammer head 8, so that the impact test requirements under multiple scenes are met. Compared with a general large drop hammer impact test device in a laboratory, the device has the advantages of lower energy consumption, more energy conservation, lower cost and fabrication cost, higher corresponding cost performance, simple structure, repeated utilization and great popularization value.

In some alternative embodiments, the steering structure comprises: the mounting platform 11 is connected with the supporting structure 1, and a driving piece 12 is arranged on the mounting platform 11; and a pulley 13, which 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 with the driving piece 12, and the other end is connected with the hammer head 8.

The mounting platform 11 is connected with the supporting structure 1, namely, a mounting position is provided for the driving piece 12, and the mounting stability of the driving piece 12 is ensured. Meanwhile, the pulley 13 is arranged, so that the steel wire rope 14 can be wound conveniently, and the driving piece 12 can be used for working to drive the steel wire rope 14 to be released or tightened, so that the hammer head 8 descends to impact the test piece 10 or returns to the initial position.

Wherein the driving member 12 is a motor.

In some alternative embodiments, the fittable drop hammer impact test device further comprises a holder 15, said holder 15 being provided in the middle of said support structure 1, said holder 15 being connected to the guide rail 5.

The fixing device 15 is arranged, so that the guide rail 5 is conveniently installed on the fixing device 15, and the installation stability of the guide rail 5 is ensured.

In some alternative embodiments, the support structure 1 comprises: the base 16 is provided with two bases 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 through a diagonal draw bar 18.

The base 16 is fixed to a laboratory slide by bolts, and the installation position of the support 17 is fixed. Wherein the magnetic fixing platform 3 is mounted on the supporting frame 17 through a diagonal draw bar 18.

Meanwhile, a middle cross bar 19 is arranged in the middle of the supporting frame 17, and the fixing device 15 is arranged on the middle cross bar 19.

In this embodiment, the height adjusting structure 2 is a plurality of adjusting holes provided on the side wall of the supporting frame 17. The magnetic fixing platform 3 and the mounting platform 11 can be adjusted to a specific height by arranging the adjusting holes, and finally, the magnetic fixing platform and the mounting platform are fixed by bolts.

In some alternative embodiments, the number of the supports 9 is two, and the test pieces 10 are arranged at intervals and are arranged on the two supports 9.

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

When the assembled drop hammer impact test device is used, the method comprises the following steps:

step 1: the base 16 is fixed on a laboratory slideway through a fixing hole 20 and a bolt, and the support 9 and the test piece 10 are installed;

step 2: the guide rail 5 is fixed on the middle cross bar 19 through the guide fixer 15;

Step 3: according to the test requirement, the diagonal draw bar 18, the magnetic fixing platform 3 and the mounting platform 11 are adjusted to a specific height through the adjusting holes and are fixed by bolts;

Step 4: the connecting hammer head 8, the piezoelectric detection element 7 and the magnetic connecting plate 6 are integrated, and the integrated is connected to the driving piece 12 through a steel wire rope 14;

Step 5: remotely controlling the control switch to eliminate magnetism of the magnetic fixing platform 3 and the magnetic connecting plate 6, and simultaneously pressing the driving piece 12 to release the steel wire rope 14, so that the hammer head 8, the piezoelectric type detection element 7 and the magnetic connecting plate 6 freely fall down to impact the test piece 10;

Step 6: obtaining the results of the damage form, impact force time-course curve, displacement time-course curve and the like of the test piece 10 through laboratory acquisition equipment;

Step 7: after the test is finished, the driving piece 12 is adopted to control the steel wire rope 14 to integrally lift the hammer head 8, the piezoelectric force detection element 7 and the magnetic connecting plate 6 to the initial height through the guide rail 5, and the test is finished or the secondary (or multiple) impact test is carried out.

The utility model also provides an assembled drop hammer impact test system, which comprises the assembled drop hammer impact test device.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. An assemblable drop hammer impact test apparatus, comprising:

the support structure (1), the support structure (1) is provided with a height adjusting structure (2);

The magnetic fixing platform (3) is arranged on the supporting structure (1), and a through hole (4) is formed in the magnetic fixing platform (3);

The guide rail (5) is arranged on the supporting structure (1) and corresponds to the through hole (4);

The magnetic connecting plate (6) is arranged at the bottom of the magnetic fixing platform (3) and is positioned in the guide rail (5);

The piezoelectric force detection element (7) is connected with the magnetic connecting plate (6), and a hammer head (8) is arranged at the bottom of the piezoelectric force detection element (7);

the control structure is arranged on the supporting structure (1) and is connected with the hammer head (8);

the 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 assembled drop hammer impact test apparatus of claim 1, wherein the handling structure comprises:

The mounting platform (11) is connected with the supporting structure (1), and a driving piece (12) is arranged on the mounting platform (11);

The pulley (13) is arranged on the supporting structure (1), a steel wire rope (14) is wound on the pulley (13), one end of the steel wire rope (14) is connected with the driving piece (12), and the other end of the steel wire rope is connected with the hammer head (8).

3. The mountable drop hammer impact test device according to claim 2, characterized in that the driving member (12) is a motor.

4. A drop hammer impact testing device according to any one of claims 1-3, further comprising a holder (15), the holder (15) being provided in the middle of the support structure (1), the holder (15) being connected to the guide rail (5).

5. The mountable drop hammer impact test device according to claim 4, characterized in that the support structure (1) comprises:

The base (16) is provided with two bases 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) through the diagonal draw bar (18).

6. The drop hammer impact test device capable of being assembled according to claim 5, wherein the middle part of the supporting frame (17) is provided with a middle cross bar (19), and the fixing device (15) is arranged on the middle cross bar (19).

7. The drop hammer impact test device capable of being assembled according to claim 6, wherein the height adjusting structure (2) is a plurality of adjusting holes formed on the side wall of the supporting frame (17).

8. The drop hammer-fittable impact test device according to any one of claims 5-7, characterized in that there are two holders (9) arranged at intervals, and that test pieces (10) are set up on the two holders (9).

9. The mountable drop hammer impact test device according to claim 8, characterized in that the piezoelectric force detection element (7) is a piezoelectric force sensor.

10. An assemblable drop hammer impact test system, comprising an assemblable drop hammer impact test device according to any one of claims 1-9.