CN214894596U

CN214894596U - Drop hammer impact experiment detection device

Info

Publication number: CN214894596U
Application number: CN202121666188.5U
Authority: CN
Inventors: 李春蕊; 黄士军; 李乃洁; 李娜; 翟辉; 董娇; 王跃明; 刘功岩; 李斌; 房乐
Original assignee: SHENYANG PRODUCT QUALITY SUPERVISION AND INSPECTION INSTITUTE
Current assignee: SHENYANG PRODUCT QUALITY SUPERVISION AND INSPECTION INSTITUTE
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2021-11-26
Anticipated expiration: 2031-07-21

Abstract

The utility model relates to the technical field of detection devices, in particular to a drop hammer impact experiment detection device, which comprises a supporting frame, a force measuring module, a stay cord, an aluminum connecting shaft, a guide rod, a drop hammer object and an aluminum stop block, wherein the force measuring module is arranged at the upper end of the supporting frame, the upper end of the stay cord is connected with the detection end of the force measuring module, the aluminum connecting shaft is connected with the lower end of the stay cord, the upper end of the guide rod is connected with the aluminum connecting shaft, the lower end of the guide rod is connected with the aluminum stop block, the drop hammer object is slidably sleeved on the guide rod and is positioned above the aluminum stop block, and a buffer rubber cushion is arranged at the upper end of the aluminum stop block; through setting up aluminium system connecting axle and aluminium system dog, can alleviate the tensile degree of stay cord when static, make the stay cord be difficult for breaking, set up the buffering cushion in aluminium system dog upper end, increase the buffering cushion and can reduce striking inertia, can reduce the inertia force of dragging downwards when the hammer object striking aluminium system dog that falls, further make the stay cord be difficult for breaking.

Description

Drop hammer impact experiment detection device

Technical Field

The utility model relates to a detection device technical field specifically is a hammer impact test detection device falls.

Background

The impact tester is a material tester that applies an impact test force to a sample to perform an impact test. The impact testing machine is divided into a manual pendulum impact testing machine, a semi-automatic impact testing machine, a digital display impact testing machine, a microcomputer control impact testing machine, a drop hammer impact testing machine, a nonmetal impact testing machine and the like. The existing impact testing machines are mainly divided into two types, namely a pendulum impact testing machine and a drop hammer impact testing machine, wherein the pendulum impact testing machine is a detector used for measuring the impact resistance performance of a metal material under a dynamic load so as to judge the mass condition of the material under the action of the dynamic load. The drop weight impact tester is another type of impact tester and is suitable for drop weight impact tests of ferritic steels (in particular various pipeline steels).

At present, a detection device applied to a drop hammer impact test mainly adopts an aluminum check block connected with a pull rope below the free falling impact of a drop hammer object to enable the pull rope to generate impact force, and a detector is connected to the upper end of the pull rope to test the impact force, but the detection device has the problem that when the drop hammer object falls and impacts the aluminum check block, the pull rope on the upper portion can be broken; the reason is mainly the defects from two aspects, one is that the whole weight of the detection device is too heavy, the stretching degree of the pull rope is already at a critical value when the detection device is static, and the pull rope is easy to break in the impact process; secondly, when the drop hammer object impacts the aluminum check block downwards, the integral structure has a downward pulling force due to downward inertia, so that the pull rope is easy to break; in view of the above, it is necessary to provide a technical solution to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a drop hammer impact experiment detection device, including braced frame, the dynamometry module, the stay cord, the aluminium system connecting axle, the guide bar, drop hammer object and aluminium system dog, the dynamometry module sets up the upper end at braced frame, the upper end of stay cord is connected with the sense terminal of dynamometry module, the lower extreme at the stay cord is connected to aluminium system connecting axle, the upper end and the aluminium system connecting axle of guide bar are connected, the lower extreme and the aluminium system dog of guide bar are connected, the slip cover of drop hammer object is established on the guide bar, and be located the top of aluminium system dog, be provided with the buffering cushion in aluminium system dog upper end.

Preferably, the supporting frame comprises a base, supporting columns arranged around the base and a top plate arranged at the upper ends of the supporting columns, and the force measuring module is positioned and installed in the middle of the lower ends of the top plate.

Preferably, the upper and lower positions of the support frame corresponding to the guide rod are respectively provided with a positioning plate, the positioning plate penetrates through the support column and is in positioning fit with the support column, and the middle part of the positioning plate is provided with a guide hole in sliding fit with the guide rod.

Preferably, the positioning plate is in threaded connection with a first adjusting screw at a position corresponding to the side portion of the supporting column, and the positioning plate is in positioning fit with the supporting column through the first adjusting screw.

Preferably, the aluminum check block is provided with a sliding through hole in a penetrating manner, the sliding through hole is in sliding fit with the guide rod, the lower end of the guide rod is further in threaded connection with a first nut, the aluminum check block is limited on the first nut, the side part of the aluminum check block is in threaded connection with a second adjusting screw, and the aluminum check block is in positioning fit with the guide rod through the second adjusting screw.

Preferably, an accommodating hole for accommodating the pull rope is formed in the upper end of the aluminum connecting shaft, a fixing cover is arranged at the upper end of the aluminum connecting shaft, a rope penetrating hole penetrating the pull rope is formed in the fixing cover, and a blocking portion which is blocked to be matched with the rope penetrating hole is formed in the lower end of the pull rope in an expanding mode.

Preferably, the lower end of the aluminum connecting shaft is provided with a threaded connecting hole, the aluminum connecting shaft is in threaded connection with the guide rod through the threaded connecting hole, the upper end of the guide rod is in threaded connection with a second nut, and the second nut is in abutting fit with the aluminum connecting shaft.

Compared with the prior art, the beneficial effects of the utility model are as follows:

through setting up aluminium system connecting axle and aluminium system dog, can alleviate the tensile degree of stay cord when static, make the stay cord be difficult for breaking, set up the buffering cushion in aluminium system dog upper end, increase the buffering cushion and can reduce striking inertia, can reduce the inertia force of dragging downwards when the hammer object striking aluminium system dog that falls, further make the stay cord be difficult for breaking.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 at A according to the present invention;

fig. 3 is a schematic structural diagram of the present invention at B in fig. 1.

The reference numerals and names in the figures are as follows:

10-a measuring support frame, 20-a force measuring module, 30-a pull rope, 40-an aluminum connecting shaft, 50-a guide rod, 60-a drop hammer object, 70-an aluminum stop block, 11-a base, 12-a support column, 13-a top plate, 14-a positioning plate, 31-a blocking part, 41-an accommodating hole, 42-a fixing cover, 43-a rope threading hole, 44-a threaded connecting hole, 45-a second nut, 71-a buffer rubber pad, 72-a sliding through hole, 73-a first nut, 74-a second adjusting screw, 141-a guide hole and 142-a first adjusting screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-3, in an embodiment of the present invention, a drop hammer impact experiment detection apparatus, including a supporting frame 10, a force measuring module 20, a pulling rope 30, an aluminum connecting shaft 40, a guiding rod 50, a drop hammer object 60 and an aluminum stopper 70, the force measuring module 20 is disposed on the upper end of the supporting frame 10, the upper end of the pulling rope 30 is connected to the detection end of the force measuring module 20, the aluminum connecting shaft 40 is connected to the lower end of the pulling rope 30, the upper end of the guiding rod 50 is connected to the aluminum connecting shaft 40, the lower end of the guiding rod 50 is connected to the aluminum stopper 70, the drop hammer object 60 is slidably sleeved on the guiding rod 50 and is located above the aluminum stopper 70, and a buffer rubber pad 71 is disposed on the upper end of the aluminum stopper 70.

In the above technical solution, the force measuring module 20 is configured to detect a change in tension of the pull rope 30 when the drop weight object 60 falls along the guide rod 50 and then strikes the aluminum stopper 70, so as to complete a drop weight impact experiment; the aluminum connecting shaft 40 and the aluminum stopper 70 reduce the tensile degree of the pull rope 30 at rest, so that the pull rope 30 is not easily broken, the buffer rubber pad 71 is arranged at the upper end of the aluminum stopper 70, the impact inertia can be reduced by adding the buffer rubber pad 71, the inertia force of pulling downwards can be reduced when the drop hammer object 60 impacts the aluminum stopper 70, and the pull rope 30 is further not easily broken.

As further shown in FIG. 1, the support frame 10 includes a base 11, support columns 12 disposed around the base 11, and a top plate 13 disposed at an upper end of the support columns 12, and the load cell module 20 is positionally fixed to a lower end of the top plate 13 at a central position.

As further shown in fig. 1, the support frame 10 is provided with positioning plates 14 at upper and lower positions corresponding to the guide rods 50, the positioning plates 14 penetrate the support columns 12 and are in positioning fit with the support columns 12, and the middle parts of the positioning plates 14 are provided with guide holes 141 in sliding fit with the guide rods 50; the guide bar 50 can be limited by the positioning plate 14.

As further shown in fig. 1, a first adjusting screw 142 is threadedly connected to a side portion of the positioning plate 14 corresponding to the supporting column 12, and the positioning plate 14 is in positioning fit with the supporting column 12 through the first adjusting screw 142; the upper and lower positions of the positioning plate 14 can be finely adjusted by the first adjusting screw 142, the flexibility of the position of the positioning plate 14 is improved, and the falling height of the drop hammer object 60 is controlled by adjusting the position of the upper positioning plate 14.

As further shown in fig. 2, a sliding through hole 72 slidably fitted to the guide bar 50 is formed through the aluminum stopper 70, a first nut 73 is further threadedly connected to the lower end of the guide bar 50, the aluminum stopper 70 is limited by the first nut 73, a second adjusting screw 74 is threadedly connected to a side portion of the aluminum stopper 70, and the aluminum stopper 70 is in positioning fit with the guide bar 50 through the second adjusting screw 74; the second adjusting screw 74 and the first nut 73 are arranged to cooperate to finely position the aluminum stopper 70, so that the aluminum stopper 70 can be firmly and accurately positioned on the guide rod 50.

As further shown in fig. 3, an accommodating hole 41 for accommodating the pulling rope 30 is formed at the upper end of the aluminum connecting shaft 40, a fixing cover 42 is arranged at the upper end of the aluminum connecting shaft 40, a rope passing hole 43 for passing through the pulling rope 30 is formed in the fixing cover 42, and a blocking portion 31 for blocking and matching with the rope passing hole 43 is formed at the lower end of the pulling rope 30 in an expanding manner; a certain buffering action force is provided between the aluminum connecting shaft 40 and the pull rope 30, and the inertia force of the drop weight body 60 which is pulled downwards at the moment of impacting the aluminum stopper 70 is reduced.

As further shown in fig. 3, a threaded connection hole 44 is formed at a lower end of the aluminum connection shaft 40, the aluminum connection shaft 40 is in threaded connection with the guide rod 50 through the threaded connection hole 44, a second nut 45 is in threaded connection with an upper end of the guide rod 50, and the second nut 45 is in abutting fit with the aluminum connection shaft 40.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a drop hammer impact experiment detection device, a serial communication port, including braced frame, the dynamometry module, the stay cord, aluminium system connecting axle, the guide bar, drop hammer object and aluminium system dog, the dynamometry module sets up the upper end at braced frame, the upper end of stay cord is connected with the sense terminal of dynamometry module, the lower extreme at the stay cord is connected to aluminium system connecting axle, the upper end and the aluminium system connecting axle of guide bar are connected, the lower extreme and the aluminium system dog of guide bar are connected, drop hammer object sliding sleeve establishes on the guide bar, and be located the top of aluminium system dog, be provided with the buffering cushion on aluminium system dog.

2. The drop hammer impact experiment detection device of claim 1, wherein the support frame comprises a base, support columns arranged around the base, and a top plate arranged at the upper ends of the support columns, and the force measurement module is positioned and installed at the middle position of the lower ends of the top plate.

3. The drop hammer impact experiment detection device as claimed in claim 2, wherein the support frame is provided with positioning plates at upper and lower positions corresponding to the guide rods, the positioning plates are disposed through the support columns and are in positioning fit with the support columns, and the middle parts of the positioning plates are provided with guide holes in sliding fit with the guide rods.

4. The drop hammer impact experiment detection device of claim 3, wherein a first adjusting screw is in threaded connection with a positioning plate at a position corresponding to a side portion of the support column, and the positioning plate is in positioning fit with the support column through the first adjusting screw.

5. The drop hammer impact experiment detection device as claimed in claim 1, wherein a sliding through hole is formed in the aluminum stopper in a sliding fit manner, a first nut is further screwed to the lower end of the guide rod, the aluminum stopper is limited on the first nut, a second adjusting screw is screwed to the side portion of the aluminum stopper, and the aluminum stopper is in positioning fit with the guide rod through the second adjusting screw.

6. The drop hammer impact experiment detection device as claimed in claim 1, wherein an accommodating hole for accommodating the pull rope is formed at the upper end of the aluminum connecting shaft, a fixing cover is arranged at the upper end of the aluminum connecting shaft, a rope penetrating hole for penetrating the pull rope is formed in the fixing cover, and a blocking portion for blocking and matching with the rope penetrating hole is formed in the lower end of the pull rope in an expanding mode.

7. The drop hammer impact test detection device of claim 1, wherein a threaded connection hole is formed in a lower end of the aluminum connection shaft, the aluminum connection shaft is in threaded connection with the guide rod through the threaded connection hole, a second nut is in threaded connection with an upper end of the guide rod, and the second nut is in abutting fit with the aluminum connection shaft.