CN105422147A - Lengthened top beam structure for end bracket - Google Patents
Lengthened top beam structure for end bracket Download PDFInfo
- Publication number
- CN105422147A CN105422147A CN201510956700.2A CN201510956700A CN105422147A CN 105422147 A CN105422147 A CN 105422147A CN 201510956700 A CN201510956700 A CN 201510956700A CN 105422147 A CN105422147 A CN 105422147A
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- CN
- China
- Prior art keywords
- top beam
- lengthened
- back timber
- lengthening
- beam structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 229910000746 Structural steel Inorganic materials 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000003245 coal Substances 0.000 abstract description 2
- 230000007704 transition Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 229910000975 Carbon steel Inorganic materials 0.000 description 3
- 239000010962 carbon steel Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/01—Caps for supporting mine roofs characterised by the shape of the cap, e.g. of specified cross-section
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention relates to an auxiliary facility of a hydraulic bracket working surface for a coal mine, in particular to a lengthened top beam structure for an end bracket. The lengthened top beam structure comprises a top beam (1); the end of the top beam (1) is coated with a lengthened sleeve (2); the top beam (1) and the lengthened sleeve (2) are drilled with holes in corresponding parts, and are fixedly connected through a bolt component (3); and the tail end of the lengthened sleeve (2) is reinforced through one set of bent plates (4) arranged up and down. The lengthened sleeve (2) is a box structure joined and welded by high-strength structural steel. The lengthened sleeve (2) lengthens the top beam (1) by 800 mm. The lengthened top beam structure is reasonable in design, and has the advantages of simple design, improvement of production efficiency, easiness in disassembly, convenience for transportation, convenience, flexibility and improvement of end frame applicability.
Description
Technical field
The present invention relates to coal-mine hydraulic support work plane ancillary facility, be specially a kind of lengthening beam structure that can be used for face end support.
Background technology
Fully-mechanized mining working faces end head refers to the intersection of work plane and stope drift active workings, termination district is the interface point of Harvesting equipment, apparatus arrangement is intensive, and be the throat of pedestrian, ventilation, haul and defeated coal, the quality of end management and supporting determines that can work plane run well, the key of work plane safe coefficient.
Fully-mechanized mining working faces end head is furnished with handpiece of scraper conveyer (tail), transfer conveyor tail, face end support and some other ancillary service etc.For ensureing the normal operation in termination district, face end support is not only the same with basic frame, ensures the safe operation of corollary equipment and the normal propelling of fully-mechanized mining working, also will have some requirement following:
1, for ensureing safety in production, face end support must have enough ventilation sections.
2, because termination equipment is complicated, bulky, face end support must have larger without column space, to ensure that various electromechanical equipment conventional maintenance is changed.
3, face end support must have enough working spaces, ensures the unimpeded smoothly of workman's production safety and sidewalk.
4, because handpiece of scraper conveyer (tail) is furnished with the equipment such as motor, shaft coupling, reducer, be connected with face end support for convenience of drag conveyor, handpiece of scraper conveyer (tail) place is all provided with pushing beam, face end support is made to pass the more basic frame of point rearward, for ensureing that face end support beam-ends is apart from requiring, the more basic frame of face end support back timber should have the larger distance of face roof under control.
Comprehensive above-mentioned requirements, face end support more basic frame main feature be have enough ventilation sections, have larger without column space, have enough working spaces, have the larger distance of face roof under control.Prior art is all generally on the basis of basic frame, meets these requirements by changing the back timber lengthened.Although it is large to change high, the accommodation of back timber bulk strength lengthened, scheduling of production is complicated, produce that long in time limit, whole frame transport difficulty is large, support interchangeability is poor.
Summary of the invention
The object of this invention is to provide a kind of lengthening beam structure that can be used for face end support, the back timber as termination frame is totally lengthened.
The present invention is achieved by the following technical solutions:
Can be used for a lengthening beam structure for face end support, comprise back timber, the termination suit of described back timber lengthens cover, and described back timber and lengthening are enclosed within corresponding site and join drilled as holes and be fixedly connected with by bolt assembly; The described tail end lengthening cover is reinforced by setting up and down one group of bent plate.
Such scheme is on the basis of basic frame back timber, increases and lengthens cover, and drilled as holes joined by back timber and lengthening cover, is connected and fixed, termination frame back timber is totally lengthened by bolt assembly.
The present invention has the following advantages: simplicity of design, enhances productivity; Dismounting is simple and easy, convenient transport; Convenient, flexible, improve termination frame applicability.
1, for being arranged in face end support and the transition bracket of work plane head (tail).
2, for without the integral top beam formula girdle of side protecting mechanism and medium-thickness seam hydraulic support.
3, the hydraulic support of 5000KN is not more than for working resistance.
The present invention is reasonable in design, on the basis of basic frame back timber, installs and lengthens cover, termination frame back timber is totally lengthened, meets real work requirement.
Accompanying drawing explanation
Fig. 1 represents structural representation of the present invention.
Fig. 2 represents the cross sectional representation lengthening cover.
In figure, 1-back timber, 2-lengthens cover, 3-bolt assembly, 4-bent plate.
Detailed description of the invention
Below in conjunction with accompanying drawing, specific embodiments of the invention are described in detail.
Can be used for a lengthening beam structure for face end support, as shown in Figure 1, comprise back timber 1, the termination suit of described back timber 1 lengthens cover 2, and described back timber 1 and lengthening cover 2 are joined drilled as holes at corresponding site and be fixedly connected with by bolt assembly 3; The tail end of described lengthening cover 2 is reinforced by setting up and down one group of bent plate 4.
Concrete structure is composed as follows:
On the basis of the basic frame back timber of ZY5000/12/28, increase and lengthen cover, as shown in Figure 1, drilled as holes joined by back timber 1 and lengthening cover 2, comprises bolt, nut and join pad by bolt assembly 3() be connected and fixed, make termination frame back timber totally increase 800mm.
Basic frame back timber is the integral top beam without side protecting mechanism; Lengthening cover adopts the welding of high-tensile structural steel overlap joint to be shaped, and the port of its tail end is used next group bent plate 4 and reinforced.Ensureing to lengthen on the basis of cover intensity, its weight should be alleviated as far as possible, preventing support center of gravity from leaning forward.Wherein, low-alloy high-tensile structural steel is on the structural carbon steel basis of phosphorus content Wc≤0.20%, add that a small amount of alloying element grows up, toughness is higher than structural carbon steel, have good welding performance, cold and hot pressure machining characteristics and corrosion resistance, part steel grade also has lower brittle transition temperature simultaneously.Except containing except a certain amount of silicon or manganese basic element in this type of steel, also contain the element of other applicable china natural resources situations.This type of steel is with structural carbon steel ratio.Have that intensity is high, good combination property, long service life, applied range, the advantage such as both economical.This steel is rolled into sheet material, section bar, seamless steel pipe etc. more, is widely used in bridge, boats and ships, boiler, vehicle and Important building structure.
Force Calculation is as follows:
Lengthen and sheathedly count box structure, its cross section is single chamber cross section, assuming that load is uniformly distributed on back timber, lengthens cover cross section as shown in Figure 2, application " hydraulic support analytical system " software, carries out strength check to lengthening cover.
As calculated, design minimum safety factor meets MT/T556-1996 " Design of Powered Supports specification " requirement, therefore the design lengthening cover is rational, meets requirement of strength.
Transition bracket requirement can be met: during work plane three machine is supporting simultaneously, for ensureing the gear cash effect to goaf between termination frame and the adjacent frame of basic frame, when preventing from moving frame, cash is leaked at caving shield side plate place, between termination frame and basic frame, need transition bracket be set, transition frame back timber length General Requirements, between basic frame and termination frame back timber length, now suitably reduces termination frame lengthening cover length and can meet transition frame requirement.
Finally it should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted; although be described in detail with reference to the embodiment of the present invention; those of ordinary skill in the art is to be understood that; technical scheme of the present invention is modified or equivalent replacement; do not depart from the spirit and scope of technical scheme of the present invention, it all should be contained in claims of the present invention.
Claims (3)
1. one kind can be used for the lengthening beam structure of face end support, comprise back timber (1), it is characterized in that: the termination suit of described back timber (1) lengthens cover (2), and described back timber (1) and lengthening cover (2) are joined drilled as holes at corresponding site and be fixedly connected with by bolt assembly (3); The described tail end lengthening cover (2) is reinforced by setting up and down one group of bent plate (4).
2. the lengthening beam structure that can be used for face end support according to claim 1, is characterized in that: described lengthening cover (2) adopts high-tensile structural steel to overlap the box structure be welded into.
3. the lengthening beam structure that can be used for face end support according to claim 1, is characterized in that: described lengthening cover (2) makes back timber (1) increase 800mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510956700.2A CN105422147A (en) | 2015-12-21 | 2015-12-21 | Lengthened top beam structure for end bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510956700.2A CN105422147A (en) | 2015-12-21 | 2015-12-21 | Lengthened top beam structure for end bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105422147A true CN105422147A (en) | 2016-03-23 |
Family
ID=55500640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510956700.2A Pending CN105422147A (en) | 2015-12-21 | 2015-12-21 | Lengthened top beam structure for end bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422147A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1094655A (en) * | 1964-01-25 | 1967-12-13 | Dobson Ltd W E & F | Improvements in mine roof supports |
| CN101666230A (en) * | 2009-10-09 | 2010-03-10 | 耿学文 | Coal mining method of lengthened front-beam fully-mechanized mining and fully-mechanized top coal carving of three-soft coal seam and equipment |
| CN203476372U (en) * | 2013-07-05 | 2014-03-12 | 平顶山煤矿机械有限责任公司 | Hydraulic support with lengthened top beam |
| CN205225290U (en) * | 2015-12-21 | 2016-05-11 | 西山煤电(集团)有限责任公司 | Extra long back timber structure that can be used to face -end support |
-
2015
- 2015-12-21 CN CN201510956700.2A patent/CN105422147A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1094655A (en) * | 1964-01-25 | 1967-12-13 | Dobson Ltd W E & F | Improvements in mine roof supports |
| CN101666230A (en) * | 2009-10-09 | 2010-03-10 | 耿学文 | Coal mining method of lengthened front-beam fully-mechanized mining and fully-mechanized top coal carving of three-soft coal seam and equipment |
| CN203476372U (en) * | 2013-07-05 | 2014-03-12 | 平顶山煤矿机械有限责任公司 | Hydraulic support with lengthened top beam |
| CN205225290U (en) * | 2015-12-21 | 2016-05-11 | 西山煤电(集团)有限责任公司 | Extra long back timber structure that can be used to face -end support |
Non-Patent Citations (1)
| Title |
|---|
| 李冬: "一种可用于端头支架的加长顶梁结构", 《山西焦煤科技》 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160323 |
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| RJ01 | Rejection of invention patent application after publication |