阅读说明：本技术 一种便于移动的折叠式超前支护装置 (Foldable advance support device convenient to remove ) 是由 王亚明 于 2021-09-14 设计创作，主要内容包括：本发明涉及一种便于移动的折叠式超前支护装置,当前煤矿井下超前支护设备移动困难,操作繁琐,支护效果不佳。本折叠式车载超前支护设备包括矿用运输车、左、右折叠支撑组件、支护顶架；支护顶架通过两个长、短十字铰接节与左、右折叠组件上部连接,左、右折叠组件下部铰接在矿用运输车上。左、右折叠组件包括折叠液压缸、升降液压缸、支撑液压缸、升降外立柱、升降内立柱、长十字铰接节、短十字铰接节；所述折叠液压缸的缸筒与运输车铰接,活塞杆与升降外立柱铰接,带动超前支护设备折叠；所述升降外立柱底部与运输车铰接,内套升降内立柱,内部安装有升降液压缸,带动支护顶架升降；所述支撑液压缸缸筒铰接在内立柱底部,活塞杆铰接在段十字铰接节上,其对支护顶架起支撑和翻转作用；所述支护顶架包括主支护架、前端扩展支架、两侧扩展支架、前伸液压缸、左右侧伸液压缸,两侧扩展支架、前端扩展支架安装在主架内部,通过其所连接的液压缸带动他们滑动伸缩。本发明可实现对刚掘进的不规则空顶区进行快速简便的多角度大面积支护。(The invention relates to a folding type advance support device convenient to move, which is difficult to move, complex to operate and poor in support effect when the current underground coal mine advance support equipment is moved. The folding vehicle-mounted advance support equipment comprises a mining transport vehicle, a left folding support assembly, a right folding support assembly and a support top frame; the supporting top frame is connected with the upper parts of the left folding assembly and the right folding assembly through two long and short cross-shaped hinged joints, and the lower parts of the left folding assembly and the right folding assembly are hinged on the mining transport vehicle. The left folding assembly and the right folding assembly comprise a folding hydraulic cylinder, a lifting hydraulic cylinder, a supporting hydraulic cylinder, a lifting outer stand column, a lifting inner stand column, a long cross hinge joint and a short cross hinge joint; a cylinder barrel of the folding hydraulic cylinder is hinged with the transport vehicle, and a piston rod is hinged with the lifting outer upright post to drive the advance support equipment to fold; the bottom of the lifting outer upright post is hinged with the transport vehicle, the lifting inner upright post is sleeved in the lifting outer upright post, and a lifting hydraulic cylinder is arranged in the lifting outer upright post and drives the supporting top frame to lift; the cylinder barrel of the supporting hydraulic cylinder is hinged to the bottom of the inner upright post, and the piston rod is hinged to the section cross hinge joint and plays a role in supporting and turning the supporting top frame; the supporting top frame comprises a main supporting frame, a front end expanding support, two side expanding supports, a forward extending hydraulic cylinder, a left side extending hydraulic cylinder and a right side extending hydraulic cylinder, the two side expanding supports and the front end expanding support are arranged inside the main frame, and the hydraulic cylinders connected with the two side expanding supports and the front end expanding supports drive the main frame to slide and extend. The invention can realize quick, simple and convenient multi-angle large-area support for the irregular empty-roof area which is just tunneled.)

1. The utility model provides a foldable advance support device convenient to remove which characterized in that: the mining underground transportation vehicle comprises a mining underground transportation vehicle (1), a left folding support component, a right folding support component and a supporting top frame; the left folding support assembly and the right folding support assembly comprise folding hydraulic cylinders (2), lifting outer columns (3), lifting inner columns (4), lifting hydraulic cylinders (5), support hydraulic cylinders (6), long cross-shaped hinge joints (7) and short cross-shaped hinge joints (8); the cylinder barrel of the folding hydraulic cylinder (2) is hinged with the underground transport vehicle (1), and the piston rod is hinged with the lifting outer upright post (3); the bottom of the lifting outer upright post (3) is hinged with the underground transport vehicle (1), and the inner lifting upright post (4) is sleeved with the lifting outer upright post; a lifting hydraulic cylinder (5) is sleeved in the lifting inner upright post (4), the bottom of the lifting inner upright post is hinged with a supporting hydraulic cylinder (6), and the top of the lifting inner upright post is hinged with a long cross-shaped hinge joint (7); the cylinder barrel of the lifting hydraulic cylinder (5) is hinged to the bottom of the outer upright post (3), and the piston rod is hinged to the top of the lifting inner upright post (4); the cylinder barrel of the supporting hydraulic cylinder (6) is hinged to the outer side of the bottom of the lifting inner upright post (4), and the piston rod is hinged to the short cross-shaped hinge joint (8); the long cross-shaped hinge joint (7) and the short cross-shaped hinge joint (8) are vertically connected with a supporting top frame, a left folding support component and a right folding support component; the supporting top frame comprises a main supporting frame (9), a front end expanding bracket (10), two side expanding brackets (11), a forward extending hydraulic cylinder (12) and a side extending hydraulic cylinder (13); the main support frame (9) is provided with inner holes in the transverse direction and the longitudinal direction and is inserted into a front-end expansion support frame (10) and two side expansion support frames (11); the cylinder barrel of the forward hydraulic cylinder (12) is hinged with the main support frame (9), and the piston rod is hinged with the front end expansion support frame (10); the cylinder barrel of the side-extending hydraulic cylinder (13) is hinged with the main support frame (9), and the piston rod is hinged with the two side extension supports (11).

2. A portable folding advance support device according to claim 1, wherein: the advanced support device is arranged on a mine underground transport vehicle (1), and the underground transport vehicle (1) drives the underground transport vehicle to move freely in an empty top area and provides hydraulic power.

3. A portable folding advance support device according to claim 1, wherein: the folding hydraulic cylinder (2) is hinged with the underground transport vehicle (1) and the lifting outer upright post (3) in a triangular mode to drive the advance support device to fold.

4. A portable folding advance support device according to claim 1, wherein: the lifting outer column (3) is internally sleeved with a lifting inner column (4), the lifting inner column (4) is internally sleeved with a lifting hydraulic cylinder (5), a cylinder barrel of the lifting hydraulic cylinder (5) is hinged to the bottom of the outer column (3), a piston rod is hinged to the top of the lifting inner column (4), and the lifting hydraulic cylinder (5) drives the lifting inner column (4) to slide and lift in the lifting outer column (3).

5. A portable folding advance support device according to claim 4, wherein: the left hydraulic cylinder and the right hydraulic cylinder of the lifting hydraulic cylinder (5) are controlled by two sets of hydraulic systems, can work independently and simultaneously, and can realize the lifting and the left-right inclination of the supporting top frame.

6. A portable folding advance support device according to claim 1, wherein: the cylinder barrel of the supporting hydraulic cylinder (6) is hinged to the outer side of the bottom of the lifting inner upright post (4), and the piston rod is hinged to the short cross-shaped hinged joint (8), so that the supporting top frame is supported and turned over up and down.

7. A portable folding advance support device according to claim 1, wherein: the main support frame (9) is transversely and longitudinally provided with hole-shaped slideways, a front-end expansion support (10) and two side expansion supports (11) are installed, and the two side expansion supports (11) are installed in a staggered mode.

8. A portable folding advance support device according to claim 7, wherein: the front-extending hydraulic cylinder (12) and the side-extending hydraulic cylinder (13) drive the front-end extending support (10) and the two side extending supports (11) to slide and extend in the slide way, and the size of the supporting area is adjusted.

Technical Field

The invention relates to an advance temporary support for a hollow top area after tunneling and exploitation of a coal mine roadway, in particular to a folding type advance support device convenient to move.

Background

After the cutting of the heading machine is completed in the coal mine tunnel in China, an unsupported goaf can appear between the heading machine and the working face, underground workers need to enter a newly exposed empty roof area to manually build a temporary support, and rockfall and even roof fall accidents can often occur to injure the workers. In the coal mine safety operation regulations, strict forbidding of the operation of the empty roof is definitely specified, and common temporary supporting methods are generally complicated to operate and long in time consumption.

At present, an airborne temporary advance support is used, but the air-borne temporary advance support is not widely popularized and applied so as to make the product immature, and the following problems exist. 1. The airborne temporary advance support only adapts to a relatively gentle top plate and is difficult to adapt to top plate structures of different conditions such as a sharp top, an inclined top, a corrugated top and the like; 2. the supporting area is small, the expansion amount is not large, and the full-section supporting of a newly excavated top plate cannot be realized; 3. most of the components are not perfectly combined with the development machine, and the folded components have larger volume, thereby influencing the cutting sight of a development machine driver and bringing inconvenience to the operation; 4. the structure of the development machine becomes more complex, the power of the development machine is occupied, the service performance of the development machine is affected, and the development level of the existing coal mine is difficult to adapt. In order to solve the problems, the folding type advance support device convenient to move is specially designed.

Disclosure of Invention

The invention provides a vehicle-mounted advance support device which is large in support area, strong in adaptability, capable of automatically extending and folding and convenient to move, and aims to overcome the defects of the conventional temporary advance support technology.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the utility model provides a foldable advance support device convenient to remove, includes mining transport vechicle in the pit, controls folding supporting component, strut the roof-rack, its characterized in that: the left folding support assembly and the right folding support assembly comprise folding hydraulic cylinders, lifting outer stand columns, lifting inner stand columns, lifting hydraulic cylinders, support hydraulic cylinders, long cross-shaped hinge joints and short cross-shaped hinge joints; the cylinder barrel of the folding hydraulic cylinder is hinged with the underground transport vehicle, and the piston rod is hinged with the lifting outer upright post; the bottom of the lifting outer upright post is hinged with the underground transport vehicle, and the inner lifting upright post is sleeved with the inner lifting upright post; a lifting hydraulic cylinder is sleeved in the lifting inner upright post, the bottom of the lifting inner upright post is hinged with a supporting hydraulic cylinder, and the top of the lifting inner upright post is hinged with a long cross-shaped hinge joint; the cylinder barrel of the lifting hydraulic cylinder is hinged to the bottom of the outer upright post, and the piston rod is hinged to the top of the lifting inner upright post; the cylinder barrel of the supporting hydraulic cylinder is hinged to the outer side of the bottom of the lifting inner upright post, and the piston rod is hinged to the short cross hinge joint; the long cross-shaped hinge joint and the short cross-shaped hinge joint are vertically connected with a supporting top frame, a left folding support assembly and a right folding support assembly; the supporting top frame comprises a main supporting frame, a front end expanding bracket, two side expanding brackets, a forward extending hydraulic cylinder and a side extending hydraulic cylinder; the main support frame is provided with inner holes in the transverse direction and the longitudinal direction and is inserted into the front-end expansion support and the two side expansion supports; the cylinder barrel of the forward hydraulic cylinder is hinged with the main support frame, and the piston rod is hinged with the front end extension support; the side-extending hydraulic cylinder barrel is hinged with the main support frame, and the piston rod is hinged with the two side extension supports.

Preferably, the invention provides a folding type advance support device convenient to move, wherein the advance support device is arranged on a mine underground transport vehicle, the underground transport vehicle drives the mine underground transport vehicle to rapidly enter and withdraw from a roadway empty top area for support operation, and hydraulic power is provided for the advance support device.

Preferably, the folding hydraulic cylinder is hinged with the underground transport vehicle and the lifting outer upright post in a triangular mode, and the folding hydraulic cylinder stretches and retracts to drive the advance support device to stretch or fold.

Preferably, the lifting outer upright post is internally sleeved with the lifting inner upright post, the lifting inner upright post is internally sleeved with the lifting hydraulic cylinder, the cylinder barrel of the lifting hydraulic cylinder is hinged to the bottom of the outer upright post, the piston rod is hinged to the top of the lifting inner upright post, and the lifting hydraulic cylinder stretches and retracts to drive the lifting inner upright post to slide and lift in the lifting outer upright post, so that the supporting top frame moves to the top plate.

Preferably, the left hydraulic cylinder and the right hydraulic cylinder of the lifting hydraulic cylinder are controlled by two sets of hydraulic systems, so that the lifting hydraulic cylinder can work independently and simultaneously, and the lifting and the left-right inclination of the supporting top frame can be realized.

Preferably, the cylinder barrel of the supporting hydraulic cylinder is hinged to the outer side of the bottom of the lifting inner upright post, and the piston rod is hinged to the short cross-shaped hinge joint, so that the supporting top frame is supported and turned over up and down.

Preferably, the main support frame is provided with hole-shaped slideways in the transverse direction and the longitudinal direction, a front-end expansion support and two side expansion supports are installed, and the two side expansion supports are installed in a staggered mode.

Preferably, the forward-extending hydraulic cylinder and the side-extending hydraulic cylinder drive the front-end extension bracket and the two side extension brackets to slide and extend in the slide way, so that the size of the supporting area is adjusted.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the mine underground transport vehicle can realize that the advanced support device can quickly enter and withdraw from a roadway empty roof area for supporting operation, is easy and convenient to move, shortens the operation time, and provides hydraulic power for the advanced support device;

2. the automatic extension or folding of the advance support device can be realized through the folding hydraulic cylinder, the working progress is accelerated, and the working time is shortened;

3. the supporting height and the left and right inclination angles of the advance supporting device can be freely adjusted through the left and right lifting upright post assemblies so as to adapt to top plates under different conditions;

4. by the aid of the supporting hydraulic cylinder, the supporting top frame can be supported more powerfully and the angle of the supporting top frame can be finely adjusted, so that supporting operation is safer and more effective;

5. the front end expansion bracket, the two side expansion brackets, the forward extending hydraulic cylinder and the side extending hydraulic cylinder on the supporting top frame can increase and adjust the effective supporting area of the advance supporting device, and better support the empty top area.

6. The flexible hinging component and the oil cylinder are matched to ensure that the advanced support frame device has smaller volume after being contracted and folded, and does not occupy narrow space of a roadway.

Drawings

The invention will be further described with reference to the accompanying drawings in which:

FIG. 1 is a schematic view of the axial structure of the present invention during deployment;

FIG. 2 is a schematic side view of the present invention in its expanded configuration;

FIG. 3 is a schematic view of the fully folded axial structure of the present invention;

FIG. 4 is a side view schematic of the present invention after it is fully folded;

Detailed Description

So that the manner in which the above recited features of the present invention can be understood and readily understood, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings, wherein:

the invention relates to a folding type advance support device convenient to move, which is characterized in that a mine underground transport vehicle 1 carries the advance support device to quickly enter an unsupported empty top area formed after cutting of a heading machine is completed. After the mine transport vehicle reaches the designated position, the mine transport vehicle 1 provides hydraulic power for the whole advance support. The cylinder barrel of the folding hydraulic cylinder 2 is hinged with the underground transport vehicle 1, the piston rod is hinged with the lifting outer column 3, when oil enters the folding hydraulic cylinder 2, the piston rod extends outwards to jack the lifting outer column 3, so that the supporting device is unfolded, and the deflection angle of the lifting outer column 3 is controlled according to the difference of oil inlet amount, so that the supporting device is suitable for different roadway supporting conditions and the stress condition of the supporting device is adjusted. The cylinder barrel of the supporting hydraulic cylinder 6 is hinged to the outer side of the bottom of the lifting inner upright post 4, the piston rod is hinged to the short cross-shaped hinge joint 8, when the supporting hydraulic cylinder 6 takes oil, the piston rod extends outwards to jack up the supporting top frame, so that the supporting top frame is unfolded, the deflection angle of the supporting top frame is controlled according to the difference of the oil inlet amount, and the supporting hydraulic cylinder is used for adjusting the supporting angle and realizing the supporting of the supporting top frame. The bottom of the lifting outer upright post 3 is hinged with the underground transport vehicle 1, and the inner sleeve lifts the inner upright post 4; a lifting hydraulic cylinder 5 is sleeved in the lifting inner upright post 4, the bottom of the lifting inner upright post is hinged with a supporting hydraulic cylinder 6, and the top of the lifting inner upright post is hinged with a long cross-shaped hinge joint 7; the cylinder barrel of the lifting hydraulic cylinder 5 is hinged to the bottom of the outer upright post 3, and the piston rod is hinged to the top of the lifting inner upright post 4; when oil is fed into the lifting hydraulic cylinder 5, the piston rod extends outwards to slide and jack the lifting inner upright post 4, so that the supporting device rises, and the rising height of the supporting top frame is controlled according to the difference of the oil feeding amount so as to adapt to roadway roofs with different heights. The left hydraulic cylinder and the right hydraulic cylinder of the lifting hydraulic cylinder 5 are controlled by two sets of hydraulic systems, and can work independently and simultaneously so as to realize that the left and the right of the supporting top frame are lifted at different heights to incline left and right.

After the supporting top frame is close to the roadway top plate, the supporting top frame comprises a main supporting frame 9, a front end expansion bracket 10, two side expansion brackets 11, a forward extending hydraulic cylinder 12 and a side extending hydraulic cylinder 13; the main support frame 9 is provided with hole-shaped slideways in the transverse direction and the longitudinal direction, a front-end expansion support 10 and two side expansion supports 11 are installed, and the two side expansion supports 11 are installed in a staggered manner; the cylinder barrel of the forward hydraulic cylinder 12 is hinged with the main support frame 9, the piston rod is hinged with the front end expansion support 10, and the forward hydraulic cylinder 12 drives the front end expansion support 10 to extend forwards when oil enters, so that the front end support area is increased; the cylinder barrel of the side-extension hydraulic cylinder 13 is hinged with the main support frame 9, the piston rod is hinged with the expansion supports 11 at two sides and slides and stretches in the slide way, and the side-extension hydraulic cylinder 13 drives the expansion supports 11 to extend outwards twice when oil enters, so that the left and right support areas are increased; the size of the supporting area can be adjusted by controlling the extension and retraction amount of the forward extending hydraulic cylinder 12 and the side extending hydraulic cylinder 13. The working state of the fully-unfolded support is shown in figures 1 and 2.

After the supporting operation is finished, the lifting hydraulic cylinder 5, the forward extending hydraulic cylinder 12, the side extending hydraulic cylinder 13, the supporting hydraulic cylinder 6 and the folding hydraulic cylinder 2 are sequentially contracted, the whole advance supporting device is driven to be folded and contracted, the supporting state is withdrawn, and the underground coal mine transport vehicle carries the advance supporting device to be quickly withdrawn from the tunneling working surface. The working state of the invention after being completely folded and stretched is shown in figures 3 and 4.