阅读说明：本技术 一种井下采掘超前支护液压支架 (Underground excavation advance support hydraulic support ) 是由 陈顺芹 于 2021-09-18 设计创作，主要内容包括：本发明提供一种井下采掘超前支护液压支架,涉及一种通过液压结构进行翻转,形成整体的延伸并进行超前支撑的液压支架,属于煤矿采掘领域。提供的一种折叠收纳的结构,通过液压缸进行翻转,形成顶板的翻转延伸,形成顶板支撑的结构的液压支架,包括液压支架主体结构、超前延伸结构,超前延伸结构折叠置于液压支架主体结构顶部,且内置于液压支架主体内,超前延伸结构和液压支架主体之间设置有液压缸,超前延伸结构相对液压支架主体翻转展开前探,所述液压支架主体包括底座、立柱、支撑垫板、掩护板、连杆,所述超前延伸结构包括液压缸、连接板、前探顶板、末端顶板、连接臂,能够进行收纳,形成整体的移动,兼顾两种支护结构。(The invention provides an underground mining advance support hydraulic support, relates to a hydraulic support which is turned over through a hydraulic structure, integrally extends and supports in advance, and belongs to the field of coal mine mining. The utility model provides a folding structure of accomodating overturns through the pneumatic cylinder, forms the upset extension of roof, forms the hydraulic support of roof supported structure, including hydraulic support major structure, leading extension structure is folding arranges hydraulic support major structure top in, and places the hydraulic support main part in, is provided with the pneumatic cylinder between leading extension structure and the hydraulic support main part, and the relative hydraulic support main part upset of leading extension structure is expanded and is visited before, the hydraulic support main part includes base, stand, supporting pad board, shield board, connecting rod, leading extension structure includes pneumatic cylinder, connecting plate, preceding roof, terminal roof, linking arm, can accomodate, forms holistic removal, compromises two kinds of supporting construction.)

1. The utility model provides an advance support hydraulic support is excavated in pit which characterized in that: including hydraulic support major structure, leading extension structure is folding arranges hydraulic support major structure top in, and places the hydraulic support main part in, is provided with the pneumatic cylinder between leading extension structure and the hydraulic support main part, and the relative hydraulic support main part upset of leading extension structure expandes the forepoling.

2. The underground mining advance support hydraulic support according to claim 1, wherein: the hydraulic support main part includes base (1), stand (2), supporting pad board, covers backplate (7), connecting rod (8), and on base (1) was arranged in to stand (2), stand (2) were monomer calendering jar, and stand (2) top is arranged in to supporting roof (6), and the one end of covering backplate (7) and the one end of supporting roof (6) correspond articulatedly, covers and connects through connecting rod (8) between the other end of backplate (7) and base (1), is provided with the jack between backplate (7) and supporting roof (6).

3. The underground mining advance support hydraulic support according to claim 1, wherein: the advanced extension structure comprises a hydraulic cylinder, connecting plates (5), a front probe top plate (4), a tail end top plate (10) and a connecting arm (12), wherein the end parts of the supporting top plate (6) are arranged in two groups of connecting plates (5) in an articulated manner, one ends of the two front probe top plates (4) are correspondingly arranged on the connecting plates (5) in an articulated manner, the tail end top plate (10) is arranged at the other end of the front probe top plate (4) through the connecting arm (12), a first hydraulic cylinder (9) is arranged between the front probe top plate (4) and the supporting top plate (6), and the tail end top plate (10) and the front probe top plate (4) are provided with a second hydraulic cylinder (11).

4. A downhole mining advance support hydraulic support according to claim 3, wherein: the connecting arm (12) is a forged piece with a C-shaped structure.

5. The underground mining advance support hydraulic support according to claim 2, wherein: the first hydraulic cylinder (9) and the second hydraulic cylinder (11) are arranged in parallel, and the tail end top plate (10) is arranged between the front probe top plate (4) and the supporting top plate (6).

6. The underground mining advance support hydraulic support according to claim 2, wherein: a front detection base (3) is arranged in the base (1), sliding blocks are arranged on two sides of the front detection base (3), corresponding sliding grooves are formed in the base (1), and a hydraulic structure is arranged between the front detection base (3) and the base (1).

7. The underground mining advance support hydraulic support according to claim 2, wherein: the inner side of the front roof (4) is provided with a short plate, and the short plates are combined and butted to form an integral plate surface.

8. A downhole mining advance support hydraulic support according to claim 3, wherein: an acute angle is formed between the first hydraulic cylinder (9) and the connecting plate (5).

Technical Field

The invention provides an underground mining advance support hydraulic support, relates to a hydraulic support which is turned over through a hydraulic structure, integrally extends and supports in advance, and belongs to the field of coal mine mining.

Background

At present, three types of support equipment are mainly adopted in a fully mechanized coal mining face roadway advance support area: single hydraulic prop, self-moving advancing hydraulic support, and unit advancing hydraulic support. The single hydraulic prop has the defects of low supporting strength, high labor intensity of workers, difficult carrying, low efficiency and the like, and is gradually abandoned by coal mines; the stepping self-moving type advanced hydraulic support has high supporting strength and a self-moving function, but has the problems of large volume, repeated supporting and damage to a roadway roof in the pushing process and the like; although the unit type advance hydraulic support solves the problem that a roof rock layer is repeatedly supported and damaged in the supporting process, the type of advance hydraulic support has the defects of small supporting area, incapability of supporting a roadway side coal wall, difficulty in designing a traveling device and the like, and needs to be moved by special carrying equipment (such as a forklift, a monorail crane and the like).

Because the supporting strength that different supporting positions of underground coal mine roadway advance support region need is different, local area need carry out the high strength and strut, and current advance hydraulic support function singleness leads to multiple supporting equipment in the pit to coexist, is very unfavorable for supporting equipment's management, and the transport mode of various supporting equipment is different moreover, is difficult to realize the unified, the high-efficient transport of multiple equipment. Therefore, the invention is needed to invent a multifunctional non-repetitive supporting roadway advance hydraulic support which is foldable and capable of walking, can simultaneously support a top plate and a roadway side coal wall and has variable supporting strength.

The publication number CN109026110B discloses a foldable walking advance hydraulic support and a process flow for advance support of a roadway thereof, and the main structure of the advance hydraulic support comprises a support upright post, a middle support top beam, a side support top beam, a telescopic beam, a multifunctional side plate, a sliding device, a support jack, a telescopic jack and a side protection jack. Adopt the forepoling of above-mentioned collapsible walking not only can strut the tunnel roof, can also effectively protect lane group coal wall, and this forepoling is folded in addition, and usable multi-functional curb plate carries out moving of forepoling, and the distance that above-mentioned structure can prolong to the strutting of tunnel roof is limited, can not form holistic extension, and can not form foldingly, is not convenient for remove and accomodates.

Disclosure of Invention

The invention discloses an underground mining advance support hydraulic support, and provides a folding and accommodating structure. Simple structure and convenient use.

The invention discloses an underground mining advance support hydraulic support, which is realized as follows: the hydraulic support comprises a hydraulic support main body structure and an advanced extension structure, wherein the advanced extension structure is arranged at the top of the hydraulic support main body structure in a folding manner and is arranged in the hydraulic support main body in a built-in manner, a hydraulic cylinder is arranged between the advanced extension structure and the hydraulic support main body, and the advanced extension structure is overturned relative to the hydraulic support main body and is unfolded to advance;

the hydraulic support main body comprises a base, an upright post, a supporting base plate, a shielding plate and a connecting rod, wherein the upright post is arranged on the base, the upright post is a single calendering cylinder, the supporting top plate is arranged at the top of the upright post, one end of the shielding plate is correspondingly hinged with one end of the supporting top plate, the other end of the shielding plate is connected with the base through the connecting rod, and a jack is arranged between the shielding plate and the supporting top plate;

the advanced extension structure comprises hydraulic cylinders, connecting plates, front probe top plates, tail end top plates and connecting arms, wherein the two groups of connecting plates are hinged to the end parts of the supporting top plates;

the connecting arm is a forged piece with a C-shaped structure;

the first hydraulic cylinder and the second hydraulic cylinder are arranged in parallel, and the tail end top plate is arranged between the front probe top plate and the supporting top plate;

a forward-probing base is arranged in the base, sliding blocks are arranged on two sides of the forward-probing base, corresponding sliding grooves are formed in the base, and a hydraulic structure is arranged between the forward-probing base and the base;

short plates are arranged on the inner side of the front roof plate and are combined and butted to form an integral plate surface;

an acute angle is formed between the first hydraulic cylinder and the connecting plate.

Has the advantages that:

firstly, overturning extension can be formed, and the integral supporting length is prolonged;

the support structure can be stored to form integral movement, and two support structures are considered;

thirdly, the structure is simple and the use is convenient.

Drawings

Fig. 1 is a three-dimensional structure view of a hydraulic support for an underground excavation advance support of the present invention.

Fig. 2 is a side view of a hydraulic support for a downhole mining advance support of the present invention.

Fig. 3 is a schematic structural diagram of a base plate of a hydraulic support for underground excavation forepoling.

In the drawings:

1. a base; 2. a column; 3. a forward probing base; 4. a top plate is detected forwards; 5. a connecting plate; 6. supporting a top plate; 7. a shield plate; 8. a connecting rod; 9. a first hydraulic cylinder; 10. a terminal end top plate; 11. a second hydraulic cylinder; 12. a connecting arm.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

According to the illustrations of FIGS. 1-3: the invention discloses an underground mining advance support hydraulic support, which is realized as follows: the hydraulic support comprises a hydraulic support main body structure and an advanced extension structure, wherein the advanced extension structure is arranged at the top of the hydraulic support main body structure in a folding manner and is arranged in the hydraulic support main body in a built-in manner, a hydraulic cylinder is arranged between the advanced extension structure and the hydraulic support main body, and the advanced extension structure is overturned relative to the hydraulic support main body and is unfolded to advance;

the hydraulic support main body comprises a base 1, an upright post 2, a supporting base plate, a shield plate 7 and a connecting rod 8, wherein the upright post 2 is arranged on the base 1, the upright post 2 is a single calendering cylinder, a supporting top plate 6 is arranged at the top of the upright post 2, one end of the shield plate 7 is correspondingly hinged with one end of the supporting top plate 6, the other end of the shield plate 7 is connected with the base 1 through the connecting rod 8, and a jack is arranged between the shield plate 7 and the supporting top plate 6;

the advanced extension structure comprises hydraulic cylinders, connecting plates 5, front probe top plates 4, tail end top plates 10 and connecting arms 12, wherein the two groups of connecting plates 5 are hinged to the end parts of supporting top plates 6, one ends of the two front probe top plates 4 are correspondingly hinged to the connecting plates 5, the tail end top plate 10 is arranged at the other end of the front probe top plate 4 through the connecting arm 12, a first hydraulic cylinder 9 is arranged between the front probe top plates 4 and the supporting top plates 6, and the tail end top plate 10 and the front probe top plates 4 are provided with second hydraulic cylinders 11;

the connecting arm 12 is a forged piece with a C-shaped structure;

the first hydraulic cylinder 9 and the second hydraulic cylinder 11 are arranged in parallel, and the tail end top plate 10 is arranged between the front probe top plate 4 and the supporting top plate 6;

a front detection base 3 is arranged in the base 1, sliding blocks are arranged on two sides of the front detection base 3, corresponding sliding grooves are formed in the base 1, and a hydraulic structure is arranged between the front detection base 3 and the base 1;

short plates are arranged on the inner side of the front roof 4 and are combined and butted to form an integral plate surface;

an acute angle is formed between the first hydraulic cylinder 9 and the connecting plate 5.

During the use, extend through first pneumatic cylinder 9 for forepoling roof 4 overturns along connecting plate 5, form and expand, flush with roof support 6, form the support forepoling in the pit, after the forepoling roof 4 expandes, through the work of second pneumatic cylinder 11, overturn terminal roof 10, form the extension, accomplish super long support and press the support, and simultaneously, through the extension of forepoling base 3, form the extension of base 1, improve holistic support stability, reach the purpose to the leading strut of coal mining.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.