CN205225290U - Extra long back timber structure that can be used to face -end support - Google Patents
Extra long back timber structure that can be used to face -end support Download PDFInfo
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- CN205225290U CN205225290U CN201521064724.9U CN201521064724U CN205225290U CN 205225290 U CN205225290 U CN 205225290U CN 201521064724 U CN201521064724 U CN 201521064724U CN 205225290 U CN205225290 U CN 205225290U
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- back timber
- end support
- cover
- extension cover
- lengthening
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Abstract
The utility model relates to a coal mine hydraulic support working face supporting facility specifically is an extra long back timber structure that can be used to face -end support, including back timber (1), the end suit extension cover (2) of back timber (1), back timber (1) and extension cover (2) are joined in marriage the brill pore -forming and are passed through bolt assembly (3) fixed connection at the corresponding site, the tail end of extension cover (2) is consolidated through a set of bent plate (4) that set up from top to bottom. Extension cover (2) is the box structure who adopts the high -tensile structural steel overlap joint to weld. Extension cover (2) makes back timber (1) increase 800mm. The utility model relates to a rationally, have following advantage: the design is simple, improves production efficiency, the dismouting is simple and easy, convenient transportation, it is convenient nimble, improve end frame suitability.
Description
Technical field
The utility model relates to coal-mine hydraulic support work plane ancillary facility, is 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 purpose of this utility model is to provide a kind of lengthening beam structure that can be used for face end support, and the back timber as termination frame is totally lengthened.
The utility model is achieved through 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 utility model 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 utility model 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 utility model.
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 embodiment of the utility model is 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 the technical solution of the utility model and unrestricted; although be described in detail with reference to the utility model embodiment; those of ordinary skill in the art is to be understood that; the technical solution of the utility model is modified or equivalent replacement; do not depart from the spirit and scope of the technical solution of the utility model, it all should be contained in claims of the present utility model.
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 |
|---|---|---|---|
| CN201521064724.9U CN205225290U (en) | 2015-12-21 | 2015-12-21 | Extra long back timber structure that can be used to face -end support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521064724.9U CN205225290U (en) | 2015-12-21 | 2015-12-21 | Extra long back timber structure that can be used to face -end support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205225290U true CN205225290U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521064724.9U Active CN205225290U (en) | 2015-12-21 | 2015-12-21 | Extra long back timber structure that can be used to face -end support |
Country Status (1)
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| CN (1) | CN205225290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422147A (en) * | 2015-12-21 | 2016-03-23 | 西山煤电(集团)有限责任公司 | Lengthened top beam structure for end bracket |
-
2015
- 2015-12-21 CN CN201521064724.9U patent/CN205225290U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422147A (en) * | 2015-12-21 | 2016-03-23 | 西山煤电(集团)有限责任公司 | Lengthened top beam structure for end bracket |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |