Row support of drilling machine with anchor at rear end

Abstract

The utility model discloses a row support with an anchor drilling machine at the rear end, which comprises two row-type supports with the same structure, each row-type support comprises at least two top beams and at least two supporting beams, and further comprises at least two telescopic components arranged on the row-type supports, the telescopic components are arranged along the length direction of the row-type supports, and the telescopic components are arranged on the row-type supports. The telescopic assemblies are jointly connected with an anchor drill hanging frame which is transversely arranged and located at the rear end of the row-type support, an anchor drill machine is installed on the anchor drill hanging frame, and the telescopic assemblies can drive the anchor drill hanging frame to move towards the rear side of the row-type support and then drive the anchor drill machine to move towards the rear side of the row-type support. The stability of the support is better than that of a front anchor drilling machine, the backward telescopic stroke of the anchor drilling machine can be longer, more than one row of anchor holes can be drilled, and the tunneling efficiency is high; when the anchor drilling machine at the rear part works, the heading machine can stand for rest in front of the working surface and does not need to exit; and the retreating process of the heading machine is canceled, so that the time is saved, and the heading speed is accelerated.

Description

Technical Field

[0001] The utility model relates to the technical field of underground mining equipment, and more specifically, to a row support with an anchor drill at the rear end. Background Art

[0002] In the prior art, an anchor drill is installed on a row support to make the work of drilling bolt holes as mechanized as possible and improve the tunneling speed. As a result, two top beams of the support are occupied, and the top beam of the support is used as the outer sleeve of the telescopic beam. The two telescopic beams can extend forward. The anchor drill hanging rack for carrying the anchor drill is installed in front of the frontmost crossbeam of the row support. Two anchor drills are placed horizontally on the crossbeam of the anchor drill hanging rack. The anchor drills can move horizontally on the crossbeam of the anchor drill hanging rack. For each tunneling cycle of the roadheader, the two anchor hole drills horizontally drill a row of bolt holes and install the bolts at the same time. This tunneling process of drilling a row of anchor holes on the roof and installing and fixing the bolts at a distance of one tunneling cycle step is called one tunneling and one bolting. (Tunneling refers to the tunneling work of the roadheader, and bolting refers to the work of drilling bolt holes and installing bolts by the anchor drill.)

[0003] If the hanging rack of the anchor drill can move forward one step distance under the push of the telescopic beam, the anchor drill can drill two rows of anchor holes at one time, and this process is two tunneling and one bolting. If the hanging rack of the anchor drill can move forward two step distances under the push of the telescopic beam, the anchor drill can drill three rows of anchor holes at one time, and this process is three tunneling and one bolting.

[0004] Although this process requires the roadheader to retreat from the bolting working position when drilling anchor holes, the roadheader continuously tunnels three cycle step distances at one time, reducing the auxiliary working time such as two stops and waiting and personnel entry and exit twice, thus improving the efficiency.

[0005] However, the support is prone to abnormal conditions at this time. Because the weight of the two anchor drills plus the anchor drill hanging rack reaches about 5 tons. As Figure 2 shown, for the support in which the crossbeam of the anchor drill hanging rack with the anchor drill can move forward two step distances, if two more step distances, that is, about two meters, are extended at the frontmost part of the support, the support will tilt forward when moving forward, and there will be a problem of the support vibrating during work. Because the weight and length of the tunneling support are basically fixed structures, and this cantilever beam structure makes the center of gravity of the equipment move forward close to the balance limit. This also determines the forward movement distance of the anchor drill hanging rack, and it is difficult to achieve better results by further tapping potential. Content of the Utility Model

[0006] In view of this, the purpose of the present utility model is to provide an improved row-connected support for an anchor drill rig. The row-connected support for the anchor drill rig provided by the present utility model arranges the anchor drill hanger for installing the anchor drill rig at the rear of the row-connected support, and can make the anchor drill hanger slide backward or extend a distance of two or more step distances. Since most of the top beams protruding from the front of the row-connected support are longer than those protruding from the rear, and there is a front flipping beam, the weight of the front part of the support is large. When the rear part of the support is equipped with an anchor drill rig, the stability of the support is better than that when the front part is equipped with an anchor drill rig. The effect is that the retraction and extension stroke of the anchor drill rig can be longer, and more than one row of anchor holes can be drilled, improving the tunneling efficiency.

[0007] To achieve the above object, the technical solution of the present utility model is as follows:

[0008] A row-connected support with an anchor drill rig at the rear, comprising two row-type supports with the same structure. Each row-type support includes at least two top beams and at least two crossbeams. The top beams and the crossbeams are arranged in a cross pattern, with the top beams located above the crossbeams. Telescopic support components are provided below the left and right ends of each row-type support. The two row-type supports have a spacing distance. The top beams of the two row-type supports are distributed alternately, and the crossbeams of the two row-type supports are distributed alternately. A propulsion cylinder is arranged between adjacent crossbeams, and the propulsion cylinder is used to propel the two row-type supports to move forward relative to each other;

[0009] It further includes at least two telescopic components installed on the row-type support. The telescopic components are arranged along the length direction of the row-type support. A horizontally arranged anchor drill hanger located at the rear end of the row-type support is commonly connected to the telescopic components. An anchor drill rig is installed on the anchor drill hanger. The telescopic components can drive the anchor drill hanger to move towards the rear side of the row-type support, and further drive the anchor drill rig to move towards the rear side of the row-type support.

[0010] Further, the anchor drill hanger is arranged below the crossbeam.

[0011] Further, the telescopic component includes a telescopic beam outer sleeve, a telescopic beam, and a driving member. The telescopic beam outer sleeve is installed below the crossbeam. The telescopic beam is slidably installed in the telescopic beam outer sleeve. The output end of the driving member is connected to the telescopic beam or the anchor drill hanger, and is used to drive the anchor drill rig to move towards the rear side of the row-type support.

[0012] Further, one end of the telescopic beam connected to the anchor drill hanger is L-shaped.

[0013] Further, the telescopic beam outer sleeve can also be connected to the telescopic support component at the same time.

[0014] Further, the front end of the telescopic beam is also connected with an anchor drill hanger, and an anchor drill rig is also installed on the front-end anchor drill hanger.

[0015] Furthermore, an anchor drill that can slide forward and extend is also provided in front of the foremost joist.

[0016] The beneficial effects of the present utility model are as follows:

[0017] The length of the majority of the roof beams protruding in front of the row-connected support is longer than that protruding at the rear, and with the front flip beam, the weight of the front part of the self-advancing support is large. The row-connected support with an anchor drill at the rear provided by the present utility model installs the anchor drill at the rear side of the row-type support through the telescopic assembly and the anchor drill hanging rack. The stability of the support is better than that with an anchor drill at the front, and the backward telescopic stroke of the anchor drill can be longer, enabling more than one row of anchor holes to be drilled, improving the tunneling efficiency; and when the rear anchor drill is working, the roadheader can standby and rest at the front of the working face without the need to withdraw. In the case of two anchor drills as well, due to being arranged at the rear, the process of the roadheader retreating is cancelled, which not only saves time but also speeds up the tunneling speed. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other embodiments can also be obtained based on these drawings.

[0019] Figure 1 is the bottom view of the existing tunneling self-advancing support;

[0020] Figure 2 is the structural schematic diagram of the existing anchor drill arranged in front of the tunneling self-advancing support.

[0021] Figure 3 is the structural schematic of the present utility model Figure 1 .

[0022] Figure 4 is the structural schematic of the present utility model Figure 2 .

[0023] Description of the Reference Numerals:

[0024] 1. Row-type support; 11. Roof beam; 12. Joist; 13. Telescopic support assembly; 14. Propulsion cylinder; 2. Telescopic assembly; 21. Telescopic beam outer sleeve; 22. Telescopic beam; 3. Anchor drill hanging rack; 4. Anchor drill. Detailed Embodiment

[0025] The following will explain and illustrate in detail the structure provided by the present utility model with reference to the drawings in the specification.

[0026] This embodiment specifically discloses a row-connected support with an anchor drill at the rear, asFigure 1 As shown in the figure, it includes two row-type supports 1 with the same structure. Each row-type support 1 includes at least two top beams 11 and at least two cross beams 12. The top beams 11 and the cross beams 12 are arranged crosswise. Preferably, the top beams 11 and the cross beams 12 intersect at a 90° angle. The top beams 11 are located above the cross beams 12. Telescopic support assemblies 13 are provided below the left and right ends of each row-type support 1. There is a spacing distance between the two row-type supports 1. The top beams 11 of the two row-type supports 1 are distributed alternately, and the cross beams 12 of the two row-type supports 1 are distributed alternately. A propulsion cylinder 14 is arranged between adjacent cross beams 12. The propulsion cylinder 14 can be a hydraulic propulsion cylinder, which is used to push the two row-type supports 1 to move forward relatively, so as to provide an uninterrupted supporting force for the working top surface.

[0027] Regarding the fixing method of the top beam 11 and the cross beam 12, a drop block can be arranged between the top beam 11 and the cross beam 12. The top beam 11 is fixedly connected to the cross beam 12 through the drop block. The width of the drop block is smaller than the width of the top beam 11. Figure 1 It can be seen that the two row-type supports are relatively independent and can achieve relative movement. At the same time, the drop block helps to reduce the frictional resistance between the two row-type supports and between the moving row-type support and the working surface top surface during the relative movement of the row-type supports, which is convenient for debugging the relative movement of the two row-type supports.

[0028] Preferably, the telescopic support assembly 13 is a hydraulic jack, which is composed of a base, a connecting and stabilizing member, etc. While providing strong support, the telescopic support assembly 13 can contract when moving forward and cooperate with the propulsion cylinder 14 to facilitate forward movement.

[0029] Specifically, the roadheader bores a certain distance in front of the support, and then the row-type support moves forward. The specific forward movement method is as follows: By contracting the telescopic support assembly 13 below one of the row-type supports 1, the row-type support 1 is separated from the support of the working surface top surface. At this time, the other row-type support 1 provides a supporting force for this row-type support. Under the pushing action of the propulsion cylinder 14, this row-type support 1 can slide relative to the other row-type support to achieve forward movement. After moving, the telescopic support assembly 13 of this row-type support 1 can extend to play a supporting role, and the other row-type support 1 moves forward in the same way. The top beams 11 of the two row-type supports 1 are distributed alternately, ensuring that when one row-type support 1 moves forward, the other row-type support 1 can still evenly support the working surface top surface without large-area empty roof conditions.

[0030] Reference Figure 3As shown, the row bracket in this embodiment also includes at least two telescopic components 2 installed on the row bracket 1. In this embodiment, two telescopic components 2 are provided, which are respectively located on the left and right sides of the row bracket. Each telescopic component 2 is arranged along the length direction of the row bracket 1. The left and right telescopic components 2 are commonly connected with an anchor drill bracket 3 which is arranged horizontally and located at the rear end of the row bracket 1. An anchor drill rig 4 is installed on the anchor drill bracket 3. The telescopic component 2 can drive the anchor drill bracket 3 to move toward the rear side of the row bracket 1, thereby driving the anchor drill rig 4 to move toward the rear side of the row bracket 1.

[0031] It can be understood that at least one anchor drill rig 4 can be arranged transversely on the anchor drill hanger 3 and can slide transversely along the anchor drill hanger 3, so as to facilitate transverse drilling of multiple anchor holes.

[0032] In this embodiment, the anchor drill hanger 3 carrying the anchor drill rig 4 is positioned at the rear of the gang frame and can be slid rearward by two or more steps under the action of the telescopic assembly 2. Because the front protrusion of the gang frame's top beams 11 is longer than that of the rear, and because the front tilt beam is included, the front of the frame is heavier. When the anchor drill rig 4 is attached to the rear of the frame, the frame's stability is improved compared to when it is attached to the front. This allows the anchor drill rig 4 to extend rearward for a longer distance, enabling the drilling of more than one row of anchor holes, thereby improving excavation efficiency.

[0033] This structure also brings another advantage, that is, when the rear anchor drill 4 is working, the boring machine can wait and rest in front of the working face without having to exit. In the case of two anchor drills 4, since they are arranged at the rear, the process of canceling the boring machine's retreat saves time or speeds up the excavation speed.

[0034] In this embodiment, the anchor drill hanger 3 is arranged below the support beam 12 and is located relatively low, which is convenient for installation and disassembly and maintenance.

[0035] Continue to refer Figure 3 As shown, in this embodiment, the telescopic assembly 2 includes a telescopic beam jacket 21, a telescopic beam 22 and a driving member (not shown in the figure). The telescopic beam jacket 21 is installed below the supporting beam 12, and the telescopic beam 22 is slidably installed in the telescopic beam jacket 21. The driving member can be any one of an electric push rod, a hydraulic cylinder or a pneumatic cylinder. The driving member can be arranged on the outside of the telescopic beam jacket 21 and connected to the top beam 11 or the supporting beam 12 of the row bracket 1. The output end is connected to the anchor drill bracket 3, directly pushing the anchor drill bracket 3 toward the rear side of the row bracket 1, and then driving the anchor drill rig 4 to move toward the rear side and extend two or more steps to perform anchor drilling.

[0036] In some embodiments, the driving member may also be directly disposed inside the telescopic beam outer sleeve 21. At this time, its output end is directly connected to the telescopic beam 22. By driving the telescopic beam 22 to move towards the rear side of the row support 1, the anchor drill hanging bracket 3 is driven to move towards the rear side of the row support 1, so that the anchor drilling machine 4 moves backward and extends by a distance of two or more step distances for anchor drilling.

[0037] In some preferred embodiments, one end of the telescopic beam 22 connected to the anchor drill hanging bracket 3 is L-shaped, that is, the protruding part of the telescopic beam 22 can be bent upward or downward to adjust the height position of the anchor drill hanging bracket 3. For example, when the roadway is relatively low, the telescopic beam 22 is set to bend upward. At this time, the anchor drill hanging bracket 3 is relatively higher than the telescopic beam outer sleeve 21, so that the position of the anchor drilling machine is also a little higher, avoiding the anchor drilling machine being too low and affecting the passage or use of the personnel below, etc.; when the roadway is relatively high, the telescopic beam 22 is set to bend downward for the convenience of the workers to operate; that is, the telescopic beam 22 can be bent upward, downward or made straight without bending. The specific situation can be determined according to the height of the roadway and can be connected and fixed at the beginning.

[0038] In some embodiments, the telescopic beam outer sleeve 21 is connected to the telescopic support assembly 13; that is, the telescopic beam outer sleeve 21 on the same side can be connected to the corresponding telescopic support assembly 13 on the same side, which not only increases the firmness of the telescopic beam outer sleeve 21 itself but also improves the overall stability of the support.

[0039] Further, after the anchor drilling machine 4 is disposed at the rear of the row support, it is equivalent to adding a counterweight to the front of the support, and the anchor drilling machine can also be installed at the front of the support. Therefore, after the anchor drilling machine 4 is disposed at the rear of the row support, the anchor drilling machine 4 can also be disposed at the front end of the row support 1.

[0040] Specifically, an anchor drilling machine 4 capable of sliding forward and extending can be disposed in front of the frontmost supporting beam 12; as Figure 4 shown, an anchor drill hanging bracket 3 can also be connected to the front end of the telescopic beam 22. The front anchor drill hanging bracket 3 is also installed with an anchor drilling machine 4, that is, the telescopic beams 22 in two opposite directions, forward and backward, use the same telescopic beam outer sleeve 21. Of course, the telescopic beam outer sleeve 21 can also be disconnected from the middle to make it into two independent telescopic mechanisms. And the forward movement stroke of the anchor drilling machine 4 can be more than the stroke of 2 bolt row pitches. Although the roadheader needs to withdraw from the working face when drilling anchor holes in this setting, there are 4 anchor drilling machines operating simultaneously, and more than 8 rows of anchor holes can be drilled each time, and the effect is that the tunneling speed is increased more significantly.

[0041] Regarding the process of drilling anchor holes, 4 anchor drills at the front can drill the anchor holes at the most important part of the top, that is, first fix the steel belt and metal mesh at the top. Then the 4 anchor drills at the back can make up the remaining anchor holes. Of course, if the side wall of the roadway is the most dangerous part of the surrounding rock, the 4 anchor drills at the front should first fix the surrounding rock at the side wall. This is the principle of safety first.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0043] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0044] In the description of this specification, the descriptions with reference to the terms "this embodiment", "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any at least one embodiment or example. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0045] Furthermore, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0046] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and simple improvements made to the substantial content of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A row of brackets for a back-end anchor drill, characterized in that, It includes two identical row-type supports (1). Each row-type support (1) includes at least two top beams (11) and at least two cross beams (12). The top beams (11) and the cross beams (12) are arranged in a cross pattern, with the top beams (11) located above the cross beams (12). Telescopic support assemblies (13) are provided below the left and right ends of each row-type support (1). The two row-type supports (1) have a spacing distance. The top beams (11) of the two row-type supports (1) are distributed alternately, and the cross beams (12) of the two row-type supports (1) are also distributed alternately. A propulsion cylinder (14) is provided between adjacent cross beams (12), and the propulsion cylinder (14) is used to push the two row-type supports (1) to move forward relatively. It further includes at least two telescopic assemblies (2) installed on the row-type support (1). The telescopic assemblies (2) are arranged along the length direction of the row-type support (1). A horizontally arranged anchor drill hanging rack (3) located at the rear end of the row-type support (1) is commonly connected to the telescopic assemblies (2). An anchor drill (4) is installed on the anchor drill hanging rack (3). The telescopic assemblies (2) can drive the anchor drill hanging rack (3) to move towards the rear side of the row-type support (1), and thus drive the anchor drill (4) to move towards the rear side of the row-type support (1).

2. The row-connected bracket of the back-end anchor drill according to claim 1, wherein, The anchor drill hanging rack (3) is arranged below the cross beam (12).

3. The row-mounted bracket of the back-end anchor drill according to claim 1, characterized in that The telescopic assembly (2) includes a telescopic beam outer sleeve (21), a telescopic beam (22) and a driving member. The telescopic beam outer sleeve (21) is installed below the cross beam (12). The telescopic beam (22) is slidably installed in the telescopic beam outer sleeve (21). The output end of the driving member is connected to the telescopic beam (22) or the anchor drill hanging rack (3) for driving the anchor drill towards the rear side of the row-type support.

4. The row-mounted bracket of the back-end anchor drill according to claim 3, characterized in that, 5. The row support of the back-end anchor drill according to claim 3, characterized in that, One end of the telescopic beam (22) connected to the anchor drill hanging rack (3) is L-shaped.

6. The row-connected support of the back-end anchor drill according to claim 3, characterized in that, The telescopic beam outer sleeve (21) is connected to the telescopic support assembly (13).

7. The row support of the back-end anchor drill according to claim 1, characterized in that, The front end of the telescopic beam (22) is also connected to an anchor drill hanging rack (3), and an anchor drill (4) is also installed on the anchor drill hanging rack (3) at the front end. An anchor drill (4) that can slide forward and extend is also provided in front of the frontmost cross beam (12).

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