CN113686704A - Multi-stress-gradient speed-adjustable drop hammer impact testing machine - Google Patents
Multi-stress-gradient speed-adjustable drop hammer impact testing machine Download PDFInfo
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- CN113686704A CN113686704A CN202111002014.3A CN202111002014A CN113686704A CN 113686704 A CN113686704 A CN 113686704A CN 202111002014 A CN202111002014 A CN 202111002014A CN 113686704 A CN113686704 A CN 113686704A
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- 238000009863 impact test Methods 0.000 title abstract description 14
- 238000012360 testing method Methods 0.000 claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 10
- 239000003245 coal Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/303—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated only by free-falling weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0032—Generation of the force using mechanical means
- G01N2203/0039—Hammer or pendulum
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a multi-stress-gradient speed-adjustable drop hammer impact testing machine, which relates to the field of dynamic impact tests and particularly comprises a position control clamping rod, a limiting motor, a position control gear, a supporting top plate, a supporting column, an impact hammer, a test block, a display screen, a sliding bottom plate, a fixed base, a sliding bottom rail, a supporting foot column and a controller. The testing machine comprises a fixed base, a testing block, a sliding bottom rail, a sliding bottom plate, a positioning clamping rod, a positioning control gear, a limiting motor, a controller and a testing machine. The method has the characteristics of simple operation, reliable result, low cost and capability of obtaining the coal rock mass driven load disturbance test result under the multi-stress and impact rate gradient.
Description
Technical Field
The invention relates to the field of dynamic impact tests, in particular to a multi-stress-gradient speed-adjustable drop hammer impact test machine.
Background
In reality, the engineering coal rock mass is often subjected to dynamic load, and the research on the dynamic load characteristics of the coal rock mass has important significance. At present, the dynamic characteristics of coal and rock masses are mostly researched by adopting an SHPB (split shaft lever) and drop hammer impact testing machine, wherein the drop hammer impact testing machine is simple in structure and is widely applied. However, when the engineering coal rock mass is disturbed by the dynamic load, different impact loads and impact rates are often applied to different positions of the same coal rock mass, most drop hammer impact testing machines cannot support simultaneous loading of multiple stresses and multiple impact rate gradients, real stress conditions cannot be reflected, and obtained dynamics experiment results and real characteristics thereof have access.
Based on the above, to obtain the real dynamic parameters and characteristics of the engineering coal rock, the experimental equipment should reflect the real stress situation, that is, when the dynamic load is applied, the rock should be in different stress and impact rate gradient states at the same time. Therefore, the invention provides a multi-stress gradient adjustable-speed drop hammer impact testing machine which has the characteristics of simple operation, reliable result, low cost and capability of obtaining the coal rock mass driven load disturbance test result under the multi-stress and impact rate gradient.
Disclosure of Invention
The invention provides a multi-stress gradient speed-adjustable drop hammer impact testing machine.
The invention is realized by adopting the following technical scheme:
the utility model provides a many stress gradient adjustable speed drop hammer impact tester, this testing machine includes: the test bed comprises a position control clamping rod, a limiting motor, a position control gear, a supporting top plate, a supporting column, an impact hammer, a test block, a display screen, a sliding bottom plate, a fixed base, a sliding bottom rail, a supporting foot column and a controller;
a plurality of supporting foot columns are welded below the fixed base, two sliding bottom rails are welded above the fixed base, supporting columns are respectively installed on two sides above the fixed base, the sliding bottom plate is installed on the sliding bottom rails and can slide along the sliding bottom rails, and the test block is placed on the sliding bottom plate;
the device comprises a plurality of impact hammers, a support column and a positioning clamping rod, wherein each impact hammer is connected with one end of one positioning clamping rod and is provided with a limiting hole, and the impact hammers are sleeved in the support column through the limiting holes; the supporting top plate is arranged above the supporting columns, and the other end of each position control clamping rod upwards penetrates through the supporting top plate and is meshed with the position control gear; the limiting motor is fixed on the supporting top plate and connected with the position control gear; the controller controls the tester to run and displays the monitoring data in the display screen;
furthermore, the installation number of the impact hammers can be selected according to the actual multi-stress gradient requirement.
Further, the impact hammer can freely slide up and down along the supporting column.
Furthermore, the sliding bottom plate can be fixed by using a clamping pin after reaching a designated position.
Furthermore, four supporting leg columns are welded below the fixed base.
Furthermore, two sides of each position control clamping rod are respectively connected with one position control gear in a meshed mode.
The invention has the following beneficial effects:
the invention provides a multi-stress gradient adjustable-speed drop hammer impact testing machine which is simple to operate, reliable in result, low in cost and capable of obtaining the coal rock mass driven load disturbance test result under the multi-stress and impact rate gradients.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a multi-stress gradient adjustable speed drop hammer impact tester.
In the figure, 1 is a position control clamping rod; 2, a limit motor; 3 is a position control gear; 4 is a supporting top plate; 5 is a support column; 6 is a limiting hole; 7 is an impact hammer; 8 is a test block; 9 is a display screen; 10 is a sliding bottom plate; 11 is a fixed base; 12 is a sliding bottom rail; 13 is a supporting foot column; and 14 is a controller.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The invention designs a multi-stress gradient adjustable-speed drop hammer impact testing machine. As shown in figure 1, the testing machine comprises a position control clamping rod 1, a limiting motor 2, a position control gear 3, a supporting top plate 4, a supporting column 5, a limiting hole 6, an impact hammer 7, a test block 8, a display screen 9, a sliding bottom plate 10, a fixed base 11, a sliding bottom rail 12, a supporting foot column 13 and a controller 14.
Four supporting legs 13 are welded below the fixed base 11, two sliding bottom rails 12 are welded above the fixed base, supporting columns 5 are respectively installed on two sides of the fixed base, a test block 8 is placed on the sliding bottom plate 10 and then installed on the sliding bottom rails 12, the supporting columns 5 are sleeved in corresponding limiting holes 6 in the impact hammers 7, a position control clamping rod 1 penetrates through a supporting top plate 4 to be connected with the impact hammers 7 and a position control gear 3, a limiting motor 2 is fixed on the supporting top plate 4 and connected with the position control gear 3, and a central rotor connecting rod of the limiting motor 2 is inserted into the position control gear to rotate together. The impact hammer is a plurality of, and every impact hammer corresponds with a accuse position kelly and is connected. The controller 14 controls the operation of the testing machine and displays the monitoring data in the display screen 9, and the multi-gradient and multi-stress impact test is realized by setting the speed and the stress of the impact hammer 7 and the separate movement of different impact hammers 7.
Specifically, the number of the impact hammers 7 can be selected according to actual needs.
Specifically, the support column 5 and the impact hammer 7 can freely slide up and down.
Specifically, the sliding bottom plate 10 can be fixed by using a bayonet lock after reaching a designated position.
Specifically, two sides of each position control clamping rod are respectively connected with one position control gear in a meshed mode.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and it should be noted that any equivalent and obvious modifications made by those skilled in the art in the light of the present specification are within the spirit and scope of the present invention.
Claims (6)
1. A multi-stress gradient speed-adjustable drop hammer impact tester is characterized in that,
this testing machine includes: the test bed comprises a position control clamping rod, a limiting motor, a position control gear, a supporting top plate, a supporting column, an impact hammer, a test block, a display screen, a sliding bottom plate, a fixed base, a sliding bottom rail, a supporting foot column and a controller;
a plurality of supporting foot columns are welded below the fixed base, two sliding bottom rails are welded above the fixed base, supporting columns are respectively installed on two sides above the fixed base, the sliding bottom plate is installed on the sliding bottom rails and can slide along the sliding bottom rails, and the test block is placed on the sliding bottom plate;
the device comprises a plurality of impact hammers, a support column and a positioning clamping rod, wherein each impact hammer is connected with one end of one positioning clamping rod and is provided with a limiting hole, and the impact hammers are sleeved in the support column through the limiting holes; the supporting top plate is arranged above the supporting columns, and the other end of each position control clamping rod upwards penetrates through the supporting top plate and is meshed with the position control gear; the limiting motor is fixed on the supporting top plate and connected with the position control gear; the controller controls the tester to run and displays the monitoring data in the display screen.
2. The multiple stress gradient adjustable speed drop hammer impact tester according to claim 1,
the installation number of the impact hammers can be selected according to the actual requirement of multiple stress gradients.
3. The multiple stress gradient adjustable speed drop hammer impact tester according to claim 1,
the impact hammer can freely slide up and down along the supporting column.
4. The multiple stress gradient adjustable speed drop hammer impact tester according to claim 1,
the sliding bottom plate can be fixed by using the clamping pin after reaching the designated position.
5. The multiple stress gradient adjustable speed drop hammer impact tester according to claim 1,
four supporting leg columns are welded below the fixed base.
6. The multiple stress gradient adjustable speed drop hammer impact tester according to claim 1,
two sides of each position control clamping rod are respectively connected with one position control gear in a meshed mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111002014.3A CN113686704B (en) | 2021-08-30 | 2021-08-30 | Multi-stress gradient speed-adjustable drop hammer impact testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111002014.3A CN113686704B (en) | 2021-08-30 | 2021-08-30 | Multi-stress gradient speed-adjustable drop hammer impact testing machine |
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| Publication Number | Publication Date |
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| CN113686704A true CN113686704A (en) | 2021-11-23 |
| CN113686704B CN113686704B (en) | 2023-11-14 |
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| CN202111002014.3A Active CN113686704B (en) | 2021-08-30 | 2021-08-30 | Multi-stress gradient speed-adjustable drop hammer impact testing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117129334A (en) * | 2023-10-26 | 2023-11-28 | 宁德时代新能源科技股份有限公司 | Extrusion testing device |
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| CN2226519Y (en) * | 1995-06-28 | 1996-05-08 | 罗永春 | Chain ring hook shaper |
| US20070220949A1 (en) * | 2006-03-17 | 2007-09-27 | Suresh Goyal | Rotational and linear shock apparatus |
| CN204008341U (en) * | 2014-08-25 | 2014-12-10 | 中国矿业大学 | The combination of drop hammer type sound loads impact experiment apparatus |
| CN109946164A (en) * | 2019-03-11 | 2019-06-28 | 中国矿业大学(北京) | A kind of experiment porch and experimental method for simulating the coal petrography catastrophe of coal mine stope |
| CN110530741A (en) * | 2019-09-25 | 2019-12-03 | 辽宁工业大学 | It is a kind of can mass simultaneous test full-automatic drop hammer impact testing machine |
| CN212693498U (en) * | 2020-06-22 | 2021-03-12 | 苏州上建杭鑫混凝土有限公司 | Concrete impact resistance test device |
| CN212834883U (en) * | 2020-05-18 | 2021-03-30 | 中建八局第二建设有限公司 | Small-size rammer compactor is used in highway construction |
-
2021
- 2021-08-30 CN CN202111002014.3A patent/CN113686704B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2226519Y (en) * | 1995-06-28 | 1996-05-08 | 罗永春 | Chain ring hook shaper |
| US20070220949A1 (en) * | 2006-03-17 | 2007-09-27 | Suresh Goyal | Rotational and linear shock apparatus |
| CN204008341U (en) * | 2014-08-25 | 2014-12-10 | 中国矿业大学 | The combination of drop hammer type sound loads impact experiment apparatus |
| CN109946164A (en) * | 2019-03-11 | 2019-06-28 | 中国矿业大学(北京) | A kind of experiment porch and experimental method for simulating the coal petrography catastrophe of coal mine stope |
| CN110530741A (en) * | 2019-09-25 | 2019-12-03 | 辽宁工业大学 | It is a kind of can mass simultaneous test full-automatic drop hammer impact testing machine |
| CN212834883U (en) * | 2020-05-18 | 2021-03-30 | 中建八局第二建设有限公司 | Small-size rammer compactor is used in highway construction |
| CN212693498U (en) * | 2020-06-22 | 2021-03-12 | 苏州上建杭鑫混凝土有限公司 | Concrete impact resistance test device |
Non-Patent Citations (1)
| Title |
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| 牟宗龙;王浩;彭蓬;刘振江;杨晓晨;: "岩-煤-岩组合体破坏特征及冲击倾向性试验研究", 采矿与安全工程学报, no. 06, pages 841 - 846 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117129334A (en) * | 2023-10-26 | 2023-11-28 | 宁德时代新能源科技股份有限公司 | Extrusion testing device |
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| CN113686704B (en) | 2023-11-14 |
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