CN103743584B - Wire netting Mechanics Performance Testing device - Google Patents
Wire netting Mechanics Performance Testing device Download PDFInfo
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- CN103743584B CN103743584B CN201310721966.XA CN201310721966A CN103743584B CN 103743584 B CN103743584 B CN 103743584B CN 201310721966 A CN201310721966 A CN 201310721966A CN 103743584 B CN103743584 B CN 103743584B
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- wire netting
- casing
- channel
- hydraulic cylinder
- testing device
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Abstract
Wire netting Mechanics Performance Testing device, comprise support, support is provided with fixed mount and the casing for placing stone, the all uncovered setting in the top of casing and bottom, fixed mount is provided with the hydraulic cylinder be positioned at directly over casing central authorities, the power drive end of hydraulic cylinder is connected with pressing plate, described wire netting is located between casing and support, point position on wire netting is connected with lifting rope, lifting rope lower end is connected with the laser lamp irradiated downwards, hydraulic cylinder is connected with oil pump by high-pressure oil pipe, and oil pump is provided with the dynamometer for the real time measure oil pressure.Principle of the invention science, structure are simple, in the process step by step to wire netting pressurization, connected from different installation adjustment holes by web joint, the size of casing can be changed, not only different size can be measured, and the distortion of wire netting under array pitch between difference and stressed rule can be obtained, between Bolt-mesh Supporting Design anchor pole, the determination of array pitch and wire netting parameter provides certain foundation.
Description
Technical field
The invention belongs to coal production technical field, particularly relate to a kind of Mechanics Performance Testing device for wire netting in Bolt with Wire Mesh in Entry.
Background technology
In recent years, China's anchor-net Shoring Technique development is extremely rapid, and achieves significant technical economic benefit.Wire netting is ensureing to have played important effect during roadway surrounding rock is stablized.The pressure from surrounding rock loosened between anchor pole, except the slump that can prevent country rock and wall caving, is also transmitted, is made bolting with wire mesh structure stress even by wire netting.Therefore, in bolting with wire mesh the adaptability research of wire netting to realizing good Surrounding Rock Control effect and to reduce support cost most important.
At present, China is only only limitted to the guidance of practical experience to the application of bolting with wire mesh wire netting, the theoretical research of famine system.Particularly in bolting with wire mesh wire netting stand under load after the research famine of its mechanics and deformation characteristic.This just chooses rational supporting ginseng for roadway support and reduces support cost and brings great difficulty.
Summary of the invention
The present invention, in order to solve weak point of the prior art, provides that a kind of structure is simple, scientific in principle, test is easy, test accurate wire netting Mechanics Performance Testing device.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: wire netting Mechanics Performance Testing device, comprise support, support is provided with fixed mount and the casing for placing stone, the all uncovered setting in the top of casing and bottom, fixed mount is provided with the hydraulic cylinder be positioned at directly over casing central authorities, the power drive end of hydraulic cylinder is connected with pressing plate, described wire netting is located between casing and support, point position on wire netting is connected with lifting rope, lifting rope lower end is connected with the laser lamp irradiated downwards, hydraulic cylinder is connected with oil pump by high-pressure oil pipe, oil pump is provided with the dynamometer for the real time measure oil pressure.
Described support comprises four supporting legs and is located at the flat board of four supporting leg upper ends, and offer the through hole for being out of shape by wire netting in the middle of dull and stereotyped downwards, through hole is square structure, and flat board is provided with the brace summer at four next-door neighbour through hole edges.
Described casing is surrounded by four channel-section steels and forms, a brace summer places a channel-section steel, the equal level of opening of every root channel-section steel outwardly, being connected by fastening bolt with brace summer below of channel-section steel, the two ends of two channel-section steels be oppositely arranged are provided with web joint, another two channel-section steel both sides be oppositely arranged are provided with at least one row and install adjustment hole, web joint is connected with the installation adjustment hole on adjacent channel-section steel by set bolt, described wire netting is square, the relative both sides of wire netting are pressed between channel-section steel and brace summer, the relative in addition both sides of wire netting are connected on two relative brace summers by tying up silk.
Described fixed mount comprises two root posts and two crossbeams, two root posts are separately positioned on outside two relative channel-section steels, two crossbeams are horizontally set on two both sides, root post upper end, the body of hydraulic cylinder is fixedly connected between two crossbeams, the piston rod of hydraulic cylinder is vertically arranged down, and pressing plate is located at piston-rod lower end.
Described supporting leg lower end is provided with Pressure-bearing pads.
Adopt technique scheme, when wire netting is tested, first selected wire netting is fixed between four channel-section steels and four brace summers, the size of casing is regulated according to the on-the-spot bolt interval of underground coal mine, the relative both sides of wire netting use channel-section steel and brace summer to compress to simulate steel band, the another both sides relatively of wire netting are connected on brace summer with tying up silk (iron wire), laser lamp is connected with lifting rope, lifting rope upper end and foil gauge are fixed on and need measure on displacement wire netting measuring point, in casing, be paved with stone, simulate roof conditions.Hydraulic cylinder is connected with ground oil pump by external connected pipes, pressurize step by step, protrude downwards in the middle part of wire netting, lifting rope and laser lamp also move thereupon, laser lamp height and ground light spot position (comprising the change of horizontal range and vertical distance) is measured in process, the size to wire netting pressurization can be measured, finally by ess-strain rule under data analysis wire netting load condition by the dynamometer that oil pump connects.
Principle of the invention science, structure are simple, in the process step by step to wire netting pressurization, connected from different installation adjustment holes by web joint, the size of casing can be changed, not only different size can be measured, and the distortion of wire netting under array pitch between difference and stressed rule can be obtained, between Bolt-mesh Supporting Design anchor pole, the determination of array pitch and wire netting parameter provides certain foundation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1, wire netting Mechanics Performance Testing device of the present invention, comprise support, support is provided with fixed mount and the casing for placing stone, the all uncovered setting in the top of casing and bottom, fixed mount is provided with the hydraulic cylinder 1 be positioned at directly over casing central authorities, the power drive end of hydraulic cylinder 1 is connected with pressing plate 2, wire netting 3 is located between casing and support, point position on wire netting 3 is connected with lifting rope 4, lifting rope 4 lower end is connected with the laser lamp 5 irradiated downwards, hydraulic cylinder 1 is connected with oil pump by high-pressure oil pipe, oil pump is provided with the dynamometer for the real time measure oil pressure.High-pressure oil pipe, oil pump and dynamometer are not illustrated out in the drawings.
Support comprises four supporting legs 6 and is located at the flat board 7 of four supporting leg 6 upper ends, and offer in the middle of flat board 7 for the through holes by wire netting 3 distortion downwards, through hole is square structure, and dull and stereotyped 7 are provided with the brace summer 8 that four are close to through hole edges.
Casing is surrounded by four channel-section steels 9 and forms, a brace summer 8 places a channel-section steel 9, the equal level of opening of every root channel-section steel 9 outwardly, being connected by fastening bolt with brace summer 8 below of channel-section steel 9, the two ends of two channel-section steels be oppositely arranged 9 are provided with web joint 10, another two channel-section steel be oppositely arranged 9 both sides are provided with at least one row and install adjustment hole 11, web joint 10 is connected with the installation adjustment hole 11 on adjacent channel-section steel 9 by set bolt, described wire netting 3 is square, the relative both sides of wire netting 3 are pressed between channel-section steel 9 and brace summer 8, the relative in addition both sides of wire netting 3 are connected on two relative brace summers 8 by tying up silk.
Fixed mount comprises two root posts 12 and two crossbeams 13, two root posts 12 are separately positioned on outside two relative channel-section steels 9, two crossbeams 13 are horizontally set on two both sides, root post 12 upper end, the body of hydraulic cylinder 1 is fixedly connected between two crossbeams 13, the piston rod of hydraulic cylinder 1 is vertically arranged down, and pressing plate 2 is located at piston-rod lower end.
Supporting leg 6 lower end is provided with Pressure-bearing pads 14.
When testing wire netting 3, first selected wire netting 3 is fixed between four channel-section steels 9 and four brace summers 8, the size of casing is regulated according to the on-the-spot bolt interval of underground coal mine, wire netting 3 relatively both sides uses channel-section steel 9 and brace summer 8 to compress to simulate steel band, the another both sides relatively of wire netting 3 are connected on brace summer 8 with tying up silk (iron wire), laser lamp 5 is connected with lifting rope 4, lifting rope 4 upper end and foil gauge are fixed on and need measure on displacement wire netting 3 measuring point, in casing, be paved with stone, simulate roof conditions.Hydraulic cylinder 1 is connected with ground oil pump by external connected pipes, pressurize step by step, protrude downwards in the middle part of wire netting 3, lifting rope 4 and laser lamp 5 also move thereupon, laser lamp 5 height and ground light spot position (comprising the change of horizontal range and vertical distance) is measured in process, the size that wire netting 3 is pressurizeed can be measured, finally by ess-strain rule under data analysis wire netting 3 load condition by the dynamometer that oil pump connects.
Above-described embodiment not does any pro forma restriction to shape of the present invention, material, structure etc.; every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all belong to the protection domain of technical solution of the present invention.
Claims (5)
1. wire netting Mechanics Performance Testing device, it is characterized in that: comprise support, support is provided with fixed mount and the casing for placing stone, the all uncovered setting in the top of casing and bottom, fixed mount is provided with the hydraulic cylinder be positioned at directly over casing central authorities, the power drive end of hydraulic cylinder is connected with pressing plate, described wire netting is located between casing and support, point position on wire netting is connected with lifting rope, lifting rope lower end is connected with the laser lamp irradiated downwards, hydraulic cylinder is connected with oil pump by high-pressure oil pipe, and oil pump is provided with the dynamometer for the real time measure oil pressure.
2. wire netting Mechanics Performance Testing device according to claim 1, it is characterized in that: described support comprises four supporting legs and is located at the flat board of four supporting leg upper ends, the through hole for being out of shape by wire netting is offered downwards in the middle of dull and stereotyped, through hole is square structure, and flat board is provided with the brace summer at four next-door neighbour through hole edges.
3. wire netting Mechanics Performance Testing device according to claim 2, it is characterized in that: described casing is surrounded by four channel-section steels and forms, a brace summer places a channel-section steel, the equal level of opening of every root channel-section steel outwardly, being connected by fastening bolt with brace summer below of channel-section steel, the two ends of two channel-section steels be oppositely arranged are provided with web joint, another two channel-section steel both sides be oppositely arranged are provided with at least one row and install adjustment hole, web joint is connected with the installation adjustment hole on adjacent channel-section steel by set bolt, described wire netting is square, the relative both sides of wire netting are pressed between channel-section steel and brace summer, the relative in addition both sides of wire netting are connected on two relative brace summers by tying up silk.
4. wire netting Mechanics Performance Testing device according to claim 3, it is characterized in that: described fixed mount comprises two root posts and two crossbeams, two root posts are separately positioned on outside two relative channel-section steels, two crossbeams are horizontally set on two both sides, root post upper end, the body of hydraulic cylinder is fixedly connected between two crossbeams, the piston rod of hydraulic cylinder is vertically arranged down, and pressing plate is located at piston-rod lower end.
5. the wire netting Mechanics Performance Testing device according to any one of claim 2-4, is characterized in that: described supporting leg lower end is provided with Pressure-bearing pads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310721966.XA CN103743584B (en) | 2013-12-24 | 2013-12-24 | Wire netting Mechanics Performance Testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310721966.XA CN103743584B (en) | 2013-12-24 | 2013-12-24 | Wire netting Mechanics Performance Testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103743584A CN103743584A (en) | 2014-04-23 |
| CN103743584B true CN103743584B (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310721966.XA Expired - Fee Related CN103743584B (en) | 2013-12-24 | 2013-12-24 | Wire netting Mechanics Performance Testing device |
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| CN (1) | CN103743584B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880304B (en) * | 2015-05-12 | 2017-07-28 | 西安理工大学 | A kind of bar-mat reinforcement static mechanical property test device and method of testing |
| CN109000910B (en) * | 2018-06-25 | 2019-08-09 | 中国矿业大学(北京) | A kind of experiment porch of three-dimensional simulation coal mine roof plate fracture |
| CN113607591B (en) * | 2021-10-09 | 2022-02-01 | 山东省科学院海洋仪器仪表研究所 | Device and method for testing contact wear of metal net for mariculture |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5048330A (en) * | 1990-02-12 | 1991-09-17 | Link Jr Gary G | Materials testing machine |
| CN101672741B (en) * | 2008-09-08 | 2011-09-21 | 中国水产科学研究院东海水产研究所 | Method for testing stress and deformation of meshes of fishing net |
| CN203732292U (en) * | 2013-12-24 | 2014-07-23 | 河南理工大学 | Mechanics performance testing device for metal meshes |
-
2013
- 2013-12-24 CN CN201310721966.XA patent/CN103743584B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5048330A (en) * | 1990-02-12 | 1991-09-17 | Link Jr Gary G | Materials testing machine |
| CN101672741B (en) * | 2008-09-08 | 2011-09-21 | 中国水产科学研究院东海水产研究所 | Method for testing stress and deformation of meshes of fishing net |
| CN203732292U (en) * | 2013-12-24 | 2014-07-23 | 河南理工大学 | Mechanics performance testing device for metal meshes |
Non-Patent Citations (2)
| Title |
|---|
| Static and dynamic testing of steel wire mesh for mining applications of rock surface support;J R. Player 等;《6th International Symposium on Ground Support in Mining and Civil Engineering Construction》;20080131;第693-706页 * |
| 锚杆支护金属网力学性能与支护效果实验室研究;林健 等;《煤炭学报》;20130930;第38卷(第9期);第1542-1548页 * |
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| CN103743584A (en) | 2014-04-23 |
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Granted publication date: 20160217 Termination date: 20211224 |