CN203347809U - Mining supporting device capable of preventing impact through constant-resistance yielding energy absorption - Google Patents

Mining supporting device capable of preventing impact through constant-resistance yielding energy absorption Download PDF

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Publication number
CN203347809U
CN203347809U CN 201320369949 CN201320369949U CN203347809U CN 203347809 U CN203347809 U CN 203347809U CN 201320369949 CN201320369949 CN 201320369949 CN 201320369949 U CN201320369949 U CN 201320369949U CN 203347809 U CN203347809 U CN 203347809U
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CN
China
Prior art keywords
support tube
energy
screw thread
base
boss
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Withdrawn - After Issue
Application number
CN 201320369949
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Chinese (zh)
Inventor
潘一山
肖永惠
马箫
李忠华
徐连满
李国臻
崔乃鑫
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Liaoning Technical University
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Liaoning Technical University
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Priority to CN 201320369949 priority Critical patent/CN203347809U/en
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Abstract

The utility model discloses a mining supporting device capable of preventing impact through constant-resistance yielding energy absorption, and belongs to the technical field of coal mine safety supports. The mining supporting device comprises a top cover, a first supporting cylinder, a second supporting cylinder, a base, a positioning ring and a force fixing ring, wherein the top cover is connected with the upper end of the first supporting cylinder through threads, the lower end of the first supporting cylinder makes contact with and is matched with the upper end of the second supporting cylinder, and the lower end of the second supporting cylinder is connected with the base through threads. An energy absorption core body is arranged between the top cover and the base. The first supporting cylinder is sleeved with the positioning ring, and the positioning ring is fixedly connected with the upper end of the outer cylinder wall of the second supporting cylinder. The force fixing ring is fixedly arranged in the middle lower portion of the outer cylinder wall of the second supporting cylinder in a sleeved mode. Demising energy absorption is achieved due to the fact that the cylinder walls turned outward after the energy absorption core body is pressed, the mining supporting device is simple in structure, rapid in response, constant in resistance, large in deformation magnitude and high in energy absorption efficiency, and rapid demising pressure relieving can be achieved under rock burst.

Description

Mining constant-resistance allows presses energy-absorbing erosion control suspension device
Technical field
The utility model belongs to safety of coal mines support technology field, particularly relates to a kind of mining constant-resistance and allows and press energy-absorbing erosion control suspension device.
Background technology
Bump is the major impetus disaster in colliery, is also a global mining difficult problem.When bump occurs, the great number of elastic energy abrupt release of rock mass inner accumulated, cause the strenuous vibration of goaf and roadway surrounding rock, cause floor lift in gallery, wall caving and roof fall, even cause the integrally-built sudden unstable failure of country rock, make prop moment of tunnel or work plane bear huge impact load, cause distortion, the damage of prop or the destruction of thoroughly collapsing, serious threat staff's life security, affected the normal exploitation of mineral resources.
At present, coal mine support substantially all be take rigid protection as main, be supported for main rigid structures support system with brute force, often the impact resistance of rigid protection equipment is poor, depress the holding state that still can keep relative stability in static ore deposit, once the foreign impacts vibration occur, will show significantly more fragile one side, often due to part prop burst damage, cause the impact unstable failure of whole support system.
With hydraulic support, although hydraulic support itself has certain pooling feature, but the pillar of hydraulic support is to realize the regulation and control of support force by the adjust flux valve, the pressure speed that allows of pillar is subject to certain restrictions, when the leg portion of hydraulic support is subject to bump, may cause flow valve in it to be washed out or detonation by the high pressure of moment, thereby cause toppling over and damaging of hydraulic support integral body, for this situation, just need a kind of suspension device to make up the weak defect of hydraulic support impact resistance, the pillar of protection hydraulic support is not damaged, improve the safety factor of prop.
The utility model content
The problem existed for prior art, the utility model provide a kind of simple in structure, be swift in response, constant resisting force, amplitude of deformation is large, energy-absorbing efficiency is high and the mining constant-resistance of the release that can realize under bump stepping down fast allows and presses energy-absorbing erosion control suspension device.
To achieve these goals, the utility model adopts following technical scheme: mining constant-resistance allows presses energy-absorbing erosion control suspension device, comprise top cover, the first support tube, the second support tube, base, locating ring and determine the power ring, described top cover is connected by screw thread with the upper end of the first support tube, the lower end of the first support tube coordinates with the upper end in contact of the second support tube, and the lower end of the second support tube is connected with base by thread; The energy-absorbing core body is installed between top cover and base; Described locating ring is sleeved on the first support tube outside, and with the upper end Joint of the second support tube outer tube wall; The described power of determining ring is fixedly set in the middle and lower part of the second support tube outer tube wall.
Described the first support tube is set to the cylinder barrel shaped structure, in the lower end of the first support tube outer tube wall, is provided with some boss, and boss is uniformly distributed on the first support tube outer tube wall circumferencial direction.
Described the second support tube is set to the cylinder barrel shaped structure, and the barrel of the second support tube is set to grating structure, and adjacent two screens set gradually as tabula rasa and convex board, and the second supporting cylinder wall lower end is set to integrative-structure; Middle and upper part at the tabula rasa external surface is provided with screw thread, in the middle and lower part of convex board external surface, is provided with screw thread; Upper end at the convex board inner surface is provided with boss, and the boss of convex board is corresponding with the boss of the first support tube; Described tabula rasa width in a circumferential direction is greater than convex board width in a circumferential direction, and tabula rasa length in the axial direction is greater than convex board length in the axial direction.
The lower surface of described locating ring is provided with some prominent eaves pieces, and prominent eaves piece is uniformly distributed in a circumferential direction, and the inner surface of prominent eaves piece is provided with screw thread, and the screw thread of described prominent eaves piece matches with the screw thread of tabula rasa external surface; Described prominent eaves piece width in a circumferential direction, be greater than width in a circumferential direction of convex board and be less than tabula rasa width in a circumferential direction.
The center, lower surface of described top cover is provided with the first cylindrical boss; Described energy-absorbing core body is set to the cylinder barrel shaped structure, and the lower end barrel of energy-absorbing core body adopts Eversible structure; The center, upper surface of described base is provided with the second cylindrical boss, on the base of the second cylindrical boss side, is provided with circular groove; The upper end of described energy-absorbing core body is connected by the first cylindrical boss with top cover, and the lower end of energy-absorbing core body is connected by the second cylindrical boss with base, and the Eversible structure of energy-absorbing core body lower end is corresponding with the circular groove of base.
The inner surface of the described power of determining ring is provided with screw thread, determines the screw thread of power ring by its inner surface and matches with the screw thread of convex board external surface.
The beneficial effects of the utility model:
Energy-absorbing core body of the present utility model adopts the cylinder barrel shaped structure, and utilizes barrel after energy-absorbing core body pressurized to turn up and realize stepping down energy-absorbing, and makes bit rate fast, and energy-absorbing efficiency is high; The first support tube of the present utility model matches by boss with the second support tube, and the barrel of the second support tube adopts grating structure, when the first support tube is subject to axial impact force, under the pressure of the first support tube, the convex board of the second support tube can be outwardly-bent fast, make stopping of first support tube hasty breaching the second support tube, realize stepping down fast of the utility model suspension device; By regulating the upper and lower position of determining the power ring, can realize the adjusting to the utility model suspension device bearing capacity, increased the applicability of the utility model suspension device.
The accompanying drawing explanation
Fig. 1 is that mining constant-resistance of the present utility model allows and presses energy-absorbing erosion control suspension device structural representation;
Fig. 2 is the first support tube structural representation of the present utility model;
The top view that Fig. 3 is Fig. 2;
Fig. 4 is the second support tube structural representation of the present utility model;
The top view that Fig. 5 is Fig. 4;
The A that Fig. 6 is Fig. 5-A sectional view;
Fig. 7 is locating ring structure schematic diagram of the present utility model;
The top view that Fig. 8 is Fig. 7;
Fig. 9 is understructure schematic diagram of the present utility model;
In figure, 1-top cover, the 2-the first support tube, 3-locating ring, the 4-the second support tube, 5-determine the power ring, 6-base, 7-energy-absorbing core body, 8-tabula rasa, 9-convex board, 10-boss, 11-circular groove, 12-prominent eaves piece, the 13-the first cylindrical boss, the 14-the second cylindrical boss.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, mining constant-resistance allows presses energy-absorbing erosion control suspension device, comprise top cover 1, the first support tube 2, the second support tube 4, base 6, locating ring 3 and determine power ring 5, described top cover 1 is connected by screw thread with the upper end of the first support tube 2, the lower end of the first support tube 2 coordinates with the upper end in contact of the second support tube 4, and the lower end of the second support tube 4 is connected by screw thread with base 6; Between top cover 1 and base 6, energy-absorbing core body 7 is installed; Described locating ring 3 is sleeved on the first support tube 2 outsides, and with the upper end Joint of the second support tube 4 outer tube walls; The described power of determining ring 5 is fixedly set in the middle and lower part of the second support tube 4 outer tube walls.
As shown in Figure 2,3, described the first support tube 2 is set to the cylinder barrel shaped structure, in the lower end of the first support tube 2 outer tube walls, is provided with boss 10 everywhere, and boss 10 is uniformly distributed on the first support tube 2 outer tube wall circumferencial directions everywhere.
As shown in Figure 4,5, 6, described the second support tube 4 is set to the cylinder barrel shaped structure, and the barrel of the second support tube 4 is set to grating structure, is provided with altogether eight screens, and adjacent two screens set gradually and are set to integrative-structure into tabula rasa 8 and convex board 9, the second support tube 4 barrel lower ends; Middle and upper part at tabula rasa 8 external surfaces is provided with screw thread, in the middle and lower part of convex board 9 external surfaces, is provided with screw thread; Upper end at convex board 9 inner surfaces is provided with boss 10, and the boss 10 of convex board 9 is corresponding with the boss 10 of the first support tube 2; Described tabula rasa 8 width in a circumferential direction is greater than convex board 9 width in a circumferential direction, and tabula rasa 8 length in the axial direction is greater than convex board 9 length in the axial direction.
As shown in Figure 7,8, the lower surface of described locating ring is provided with four prominent eaves pieces 12, and prominent eaves piece 12 is uniformly distributed in a circumferential direction, and the inner surface of prominent eaves piece 12 is provided with screw thread, and the screw thread of described prominent eaves piece 12 matches with the screw thread of tabula rasa 8 external surfaces; Described prominent eaves piece 12 width in a circumferential direction, be greater than width in a circumferential direction of convex board 9 and be less than tabula rasa 8 width in a circumferential direction.
As shown in Fig. 1,9, the center, lower surface of described top cover 1 is provided with the first cylindrical boss; Described energy-absorbing core body 7 is set to the cylinder barrel shaped structure, and the lower end barrel of energy-absorbing core body 7 adopts Eversible structure; The center, upper surface of described base 6 is provided with the second cylindrical boss, on the base 6 of the second cylindrical boss side, is provided with circular groove 11; The upper end of described energy-absorbing core body 7 is connected by the first cylindrical boss with top cover 1, and the lower end of energy-absorbing core body 7 is connected by the second cylindrical boss with base 6, and the Eversible structure of energy-absorbing core body 7 lower ends is corresponding with the circular groove 11 of base 6.
As shown in Figure 1, the inner surface of the described power of determining ring 5 is provided with screw thread, determines the screw thread of power ring 5 by its inner surface and matches with the screw thread of convex board 9 external surfaces.
Below in conjunction with accompanying drawing, a use procedure of the present utility model is described:
The utility model is applied in coal mine roadway, and is used in conjunction with hydraulic support.
In the present embodiment, top cover 1, base 6, the first support tube 2, locating ring 3 reach the material (concrete material selection low-alloy super-strength steel or PH stainless steel) of determining power ring 5 and all adopting high rigidity, the second support tube 4 adopts all materials (concrete material selection spring steel) preferably of intensity and elasticity, and energy-absorbing core body 7 adopts the metal material that intensity is high, toughness is high and ductility is good (concrete material selection E p/ Y=3.5 or E pthe thin-wall steel pipe of/Y=5.5, wherein E pfor the linear strain-hardening modulus, Y is yield strength; And the ratio range of the wall thickness d of thin-wall steel pipe and the external diameter R of steel cylinder is 0.02≤d/R≤0.1).
Assembling mining constant-resistance of the present utility model allows and presses energy-absorbing erosion control suspension device.At first energy-absorbing core body 7 lower ends are sleeved on the second cylindrical boss 14 of base 6, Eversible structure with seasonal energy-absorbing core body 7 lower ends is positioned at circular groove 11, then the second support tube 4 was overlapped to energy-absorbing core body 7, make its lower end and base 6 link together by screw threads for fastening, again the first support tube 2 was overlapped to energy-absorbing core body 7, make the boss 10 of its lower end contact with the boss 10 on the second support tube 4 convex boards 9, the first support tube 2 is placed on the second support tube 4, now locating ring 3 was overlapped to the first support tube 2, prominent eaves piece 12 by locating ring 3 makes locating ring 3 together with the second support tube 4 tabula rasa 8 screw threads for fastening, and make in the space of convex board 9 between two prominent eaves pieces 12, stabilize the first support tube 2 simultaneously, then the first cylindrical boss of top cover 1 is embedded in energy-absorbing core body 7 upper end cylindrical shells, with seasonal top cover 1 together with the first support tube 2 screw threads for fastening, finally will determine power ring 5 is fixed on outside the second support tube 4 by screw thread, now assembly working is complete.
Determine the bearing capacity of the utility model suspension device according to setting load and working resistance, determine the upper and lower position of power ring 5 outside the second support tube 4 by regulating, just can realize regulating the size of the utility model suspension device bearing capacity, in the present embodiment, bearing capacity is set as to the rated value of the flow valve in hydraulic prop.
To assemble and set the utility model suspension device of bearing capacity, be installed on upper end or the lower end of hydraulic prop, and by top cover 1 or base 6 and hydraulic prop Joint.
Under quasistatic pressure, reach the combining structure of determining power ring 5 by top cover 1, base 6, the first support tube 2, the second support tube 4, locating ring 3, bear axial load; When bump occurs, when in running into hydraulic prop, the pressure of flow valve has surpassed the rated value of flow valve, now the boss 10 of the first support tube 2 of the utility model suspension device can be broken through the decline of taking advantage of a situation that stops of the second support tube 4 boss 10, top cover 1 is under the promotion of impact force simultaneously, impel energy-absorbing core body 7 to be out of shape fast (barrel turns up fast), with realization, step down fast and energy-absorbing, the percussion that the relieving hydraulic pillar is subject to, can avoid hydraulic prop and related supporting thereof that property destruction out of control occurs.

Claims (6)

1. mining constant-resistance allows and presses energy-absorbing erosion control suspension device, it is characterized in that: comprise top cover, the first support tube, the second support tube, base, locating ring and determine the power ring, described top cover is connected by screw thread with the upper end of the first support tube, the lower end of the first support tube coordinates with the upper end in contact of the second support tube, and the lower end of the second support tube is connected with base by thread; The energy-absorbing core body is installed between top cover and base; Described locating ring is sleeved on the first support tube outside, and with the upper end Joint of the second support tube outer tube wall; The described power of determining ring is fixedly set in the middle and lower part of the second support tube outer tube wall.
2. mining constant-resistance according to claim 1 allows and presses energy-absorbing erosion control suspension device, it is characterized in that: described the first support tube is set to the cylinder barrel shaped structure, be provided with some boss in the lower end of the first support tube outer tube wall, boss is uniformly distributed on the first support tube outer tube wall circumferencial direction.
3. mining constant-resistance according to claim 2 allows and presses energy-absorbing erosion control suspension device, it is characterized in that: described the second support tube is set to the cylinder barrel shaped structure, the barrel of the second support tube is set to grating structure, adjacent two screens set gradually as tabula rasa and convex board, and the second supporting cylinder wall lower end is set to integrative-structure; Middle and upper part at the tabula rasa external surface is provided with screw thread, in the middle and lower part of convex board external surface, is provided with screw thread; Upper end at the convex board inner surface is provided with boss, and the boss of convex board is corresponding with the boss of the first support tube; Described tabula rasa width in a circumferential direction is greater than convex board width in a circumferential direction, and tabula rasa length in the axial direction is greater than convex board length in the axial direction.
4. mining constant-resistance according to claim 3 allows and presses energy-absorbing erosion control suspension device, it is characterized in that: the lower surface of described locating ring is provided with some prominent eaves pieces, prominent eaves piece is uniformly distributed in a circumferential direction, the inner surface of prominent eaves piece is provided with screw thread, and the screw thread of described prominent eaves piece matches with the screw thread of tabula rasa external surface; Described prominent eaves piece width in a circumferential direction, be greater than width in a circumferential direction of convex board and be less than tabula rasa width in a circumferential direction.
5. mining constant-resistance according to claim 3 allows and presses energy-absorbing erosion control suspension device, and it is characterized in that: the inner surface of the described power of determining ring is provided with screw thread, determines the screw thread of power ring by its inner surface and matches with the screw thread of convex board external surface.
6. mining constant-resistance according to claim 1 allows and presses energy-absorbing erosion control suspension device, and it is characterized in that: the center, lower surface of described top cover is provided with the first cylindrical boss; Described energy-absorbing core body is set to the cylinder barrel shaped structure, and the lower end barrel of energy-absorbing core body adopts Eversible structure; The center, upper surface of described base is provided with the second cylindrical boss, on the base of the second cylindrical boss side, is provided with circular groove; The upper end of described energy-absorbing core body is connected by the first cylindrical boss with top cover, and the lower end of energy-absorbing core body is connected by the second cylindrical boss with base, and the Eversible structure of energy-absorbing core body lower end is corresponding with the circular groove of base.
CN 201320369949 2013-06-25 2013-06-25 Mining supporting device capable of preventing impact through constant-resistance yielding energy absorption Withdrawn - After Issue CN203347809U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321660A (en) * 2013-06-25 2013-09-25 辽宁工程技术大学 Mining constant-resistance yielding energy-absorbing impact-resisting supporting device
CN104819002A (en) * 2015-04-23 2015-08-05 辽宁工程技术大学 Constant resistance avoiding energy-absorbing device for mining
CN109681562A (en) * 2018-12-21 2019-04-26 上海交通大学 Reuse varying load energy-absorbing pillar based on varus composite material tube

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103321660A (en) * 2013-06-25 2013-09-25 辽宁工程技术大学 Mining constant-resistance yielding energy-absorbing impact-resisting supporting device
CN103321660B (en) * 2013-06-25 2015-04-22 辽宁工程技术大学 Mining constant-resistance yielding energy-absorbing impact-resisting supporting device
CN104819002A (en) * 2015-04-23 2015-08-05 辽宁工程技术大学 Constant resistance avoiding energy-absorbing device for mining
CN104819002B (en) * 2015-04-23 2019-08-06 辽宁工程技术大学 Mining constant-resistance resigning energy absorption device
CN109681562A (en) * 2018-12-21 2019-04-26 上海交通大学 Reuse varying load energy-absorbing pillar based on varus composite material tube
CN109681562B (en) * 2018-12-21 2020-11-10 上海交通大学 Reusable variable-load energy-absorbing strut based on inverted composite pipe

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20131218

Effective date of abandoning: 20150422