Gob-side entry retaining unit support and moving and driving method

Abstract

The gob-side entry retaining unit support comprises a base, a top beam is arranged on the base in a liftable mode, pushing mechanisms are arranged on the two sides of the base, and the two pushing mechanisms are located on the two sides of the top beam respectively. The invention further discloses a gob-side entry retaining unit support moving and driving method. According to the gob-side entry retaining unit support and the moving and driving method, the problem that an existing unit support cannot be moved in time in a roadway with a soft bottom plate and a large floor heave is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine non-coal pillar mining support equipment, and in particular relates to a gob-side lane retaining unit support, and also relates to a method for moving the gob-side lane retaining unit support. Background Art

[0002] At present, my country is constantly promoting the method of pillar-free mining. Among them, flexible formwork concrete goaf-side entry retention is one of the most commonly used methods in pillar-free mining. It has been successfully applied in many coal mining units in my country and has broad prospects.

[0003] The goaf-retained lane is built before the supporting effect of the working face end disappears, under the protection and support of the support or single pillar, closely following the working face recovery, and a concrete continuous wall with close top connection, strong initial support, rapid increase in resistance, high resistance and stable constant resistance is built between the goaf and the lane to preserve the lane for use by the next working face. Therefore, it is particularly important to move the rear unit support to the front area to be poured wall in time. However, in some lanes with soft bottom plates and large bottom drums, the support transporter cannot enter, resulting in the inability to move the support normally, affecting the progress of the goaf-retained lane. Therefore, a new unit support and moving method for goaf-retained lane is urgently needed. Summary of the invention

[0004] The first object of the present invention is to provide a unit support for retaining lanes along the goaf, so as to solve the problem that the existing unit support cannot be moved in time in lanes with soft bottom plates and large bottom drums.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an air-side lane retaining unit support includes a base, a top beam is liftably arranged on the base, and sliding mechanisms are arranged on both sides of the base, and the two sliding mechanisms are respectively located on both sides of the top beam.

[0006] The technical solution of the present invention also has the following characteristics: A telescopic column is arranged on the base, and a top beam is arranged at the driving end of the column.

[0007] The number of columns is two.

[0008] The pushing mechanism is an oil cylinder, a cylinder seat of the oil cylinder is fixed on the side of the base, and the telescopic end of the oil cylinder extends outward in a horizontal shape.

[0009] The side of the top beam is provided with a lifting ring.

[0010] The number of rings is two.

[0011] The two lifting rings are arranged symmetrically with the top beam as the center.

[0012] The second object of the present invention is to provide a method for moving a unit support along an empty lane, so as to solve the problem that the existing unit support cannot be moved in time in a lane with a soft bottom plate and a large bottom drum.

[0013] In order to achieve the above object, the technical solution adopted by the present invention is: the unit support for retaining lanes along the gob is carried out, and is specifically implemented according to the following steps: Step 1: when the strength of the gob-side tunnel retaining wall reaches the supporting strength, shrink the columns of the gob-side tunnel retaining unit support arranged on one side thereof to lower the height of the top beam so that the top beam is no longer in contact with the roof; Step 2: Extend the telescopic end of the push mechanism of the base and the top beam on one side of the gob-side tunnel retaining wall until it contacts the gob-side tunnel retaining wall, and then continue to extend it, and use the interaction force between the push mechanism and the gob-side tunnel retaining wall to push the base away from the gob-side tunnel retaining wall until it is under the monorail crane in the tunnel, and then retract the push mechanism; Step 3: Lock the top beam with the hook of the monorail crane, then lift the entire gob-side lane retaining unit bracket off the roadway floor, use the monorail crane to transport the entire gob-side lane retaining unit bracket to the place where the wall is to be poured in front of the roadway, then lower the gob-side lane retaining unit bracket until its base is completely in contact with the roadway floor, and then release the top beam; Step 4: Extend the push cylinder on the other side of the base and the top beam until it contacts the side of the lane, and then continue to extend it, using the interaction force between the push mechanism and the side of the lane to push the entire gob-side lane retaining unit support away from the side of the lane until it reaches the side of the wall to be poured in the lane, and then retract the push mechanism; Step 5, extend the column to make the top beam contact the top plate of the tunnel. At this point, one unit bracket is moved, and the front and rear brackets are repeated in this cycle until the tunnel is left empty.

[0014] The beneficial effects of the present invention are: (1) The unit support and moving method for gob-side lane retaining of the present invention has a push mechanism disposed on both sides of the base and the top beam, which can realize the self-movement of the unit support in the left and right directions of the lane by utilizing the interaction force with the lane side and the wall, without the need for external mechanical assistance; (2) The unit support and moving method for the gob-side lane retaining of the present invention has a lifting ring on the top beam that can cooperate with the lane monorail crane to realize the movement of the unit support in the up-down direction and the front-back direction in the lane, without the need for a unit support transport vehicle to assist in transportation; (3) The unit support and moving method for retaining the tunnel along the goaf of the present invention can reduce the burden of manual handling and improve work efficiency when applied to ordinary tunnels. The effect is particularly prominent in tunnels with soft bottom plates, large bottom drums, and tunnels that cannot be entered by support transport vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a schematic structural diagram of a gob-side lane retaining unit support after arrangement of the present invention; Figure 2 It is a plan view of the moving route of a unit support for retaining lanes along the goaf according to the present invention.

[0016] In the figure, 1. top beam, 2. column, 3. base, 4. sliding assembly, 5. monorail crane, 6. lifting ring, 7. unit bracket, 8. tunnel side, 9. wall, 10. tunnel roof, 11. tunnel bottom. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0018] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0019] Example 1 like Figure 1 As shown, a unit support for retaining a lane along a gob in the present invention comprises a base 3 on which a top beam 1 is liftably arranged, and sliding mechanisms 4 are arranged on both sides of the base 3 , and the two sliding mechanisms 4 are respectively located on both sides of the top beam 1 .

[0020] The gob-side lane retaining unit support of the present invention can utilize the interaction force with the lane side 8 and the wall 9 to realize the self-movement of the unit support 7 in the left and right directions of the lane when working, without the need for external mechanical assistance.

[0021] Combination Figure 2 The present invention provides a method for moving a unit support along a gob retaining lane, which is specifically implemented according to the following steps: Step 1, when the strength of the gob-side tunnel retaining wall 9 reaches the supporting strength, shrink the height of the top beam 1 in the gob-side tunnel retaining unit support 7 arranged on one side thereof, so that the top beam 1 is no longer in contact with the roof 10; Step 2: Extend the telescopic end of the push mechanism 4 on one side of the gob-side tunnel retaining wall 9 of the base 3 and the top beam 1 until it contacts the gob-side tunnel retaining wall 9, and then continue to extend, and use the interaction force between the push mechanism 4 and the gob-side tunnel retaining wall 9 to push the base 3 away from the gob-side tunnel retaining wall 9 until it is under the monorail crane 5 in the tunnel, and then retract the push mechanism 4; Step 3, lock the top beam 1 with the hook of the monorail crane 5, then lift the entire gob-side lane retaining unit support 7 off the tunnel floor 11, use the monorail crane 5 to transport the entire gob-side lane retaining unit support 7 to the place where the wall to be poured is located in front of the tunnel, then lower the gob-side lane retaining unit support 7 until its base 3 completely contacts the tunnel floor 11, and then release the top beam 1; Step 4, extend the push mechanism 4 on the other side of the base 3 and the top beam 1 until it contacts the lane side 8, and then continue to extend it, and use the interaction force between the push mechanism 4 and the lane side 8 to push the entire gob-side lane retaining unit support 7 away from the lane side 8 until it reaches the side of the wall to be poured in the lane, and then retract the push mechanism 4; Step 5, lift the top beam 1 so that it contacts the tunnel roof 10. At this point, one unit support 7 has completed the frame shifting, and the front and rear supports repeat this cycle until the tunnel is left empty.

[0022] Therefore, compared with the prior art, the present invention has the following advantages: (1) The unit support and moving method for gob-side lane retaining of the present invention has a push mechanism disposed on both sides of the base and the top beam, which can realize the self-movement of the unit support in the left and right directions of the lane by utilizing the interaction force with the lane side and the wall, without the need for external mechanical assistance; (2) The unit support and moving method for retaining the tunnel along the goaf of the present invention can reduce the burden of manual handling and improve work efficiency when applied to ordinary tunnels. The effect is particularly prominent in tunnels with soft bottom plates, large bottom drums, and tunnels that cannot be entered by support transport vehicles.

[0023] Example 2 like Figure 1 As shown, a unit support for retaining lanes along the goaf of the present invention comprises a base 3, on which a retractable column 2 may be provided, a top beam 1 is provided at the retractable end of the column, and sliding mechanisms 4 are provided on both sides of the base 3, and the two sliding mechanisms 4 are respectively located on both sides of the top beam 1.

[0024] The gob-side lane retaining unit support of the present invention can utilize the interaction force with the lane side 8 and the wall 9 to realize the self-movement of the unit support 7 in the left and right directions of the lane when working, without the need for external mechanical assistance.

[0025] Combination Figure 2 , a method for moving a unit support along a gob retaining lane of the present invention, step 1, when the strength of the gob retaining lane wall 9 reaches the supporting strength, retracting the columns 2 of the unit support 7 along the gob retaining lane arranged on one side thereof to lower the height of the top beam 1 so that the top beam 1 is no longer in contact with the roof 10; Step 2: Extend the telescopic end of the push mechanism 4 on one side of the gob-side tunnel retaining wall 9 of the base 3 and the top beam 1 until it contacts the gob-side tunnel retaining wall 9, and then continue to extend, and use the interaction force between the push mechanism 4 and the gob-side tunnel retaining wall 9 to push the base 3 away from the gob-side tunnel retaining wall 9 until it is under the monorail crane 5 in the tunnel, and then retract the push mechanism 4; Step 3, lock the top beam 1 with the hook of the monorail crane 5, then lift the entire gob-side lane retaining unit support 7 off the tunnel floor 11, use the monorail crane 5 to transport the entire gob-side lane retaining unit support 7 to the place where the wall to be poured is located in front of the tunnel, then lower the gob-side lane retaining unit support 7 until its base 3 completely contacts the tunnel floor 11, and then release the top beam 1; Step 4, extend the push mechanism 4 on the other side of the base 3 and the top beam 1 until it contacts the lane side 8, and then continue to extend it, and use the interaction force between the push mechanism 4 and the lane side 8 to push the entire gob-side lane retaining unit support 7 away from the lane side 8 until it reaches the side of the wall to be poured in the lane, and then retract the push mechanism 4; Step 5, extend the column 2 to make the top beam 1 contact the tunnel roof 10. At this point, one unit support 7 has completed the frame shifting, and the front and rear supports repeat this cycle until the tunnel is completed.

[0026] Therefore, compared with the prior art, the present invention has the following advantages: (1) The unit support and moving method for gob-side lane retaining of the present invention has a push mechanism disposed on both sides of the base and the top beam, which can realize the self-movement of the unit support in the left and right directions of the lane by utilizing the interaction force with the lane side and the wall, without the need for external mechanical assistance; (2) The unit support and moving method for retaining the tunnel along the goaf of the present invention can reduce the burden of manual handling and improve work efficiency when applied to ordinary tunnels. The effect is particularly prominent in tunnels with soft bottom plates, large bottom drums, and tunnels that cannot be entered by support transport vehicles.

[0027] Example 3 like Figure 1 As shown, similar to Example 2, Example 3 is a unit support for retaining lanes along the goaf of the present invention, comprising a base 3, on which a retractable column 2 may be provided, a top beam 1 is provided at the retractable end of the column, and sliding mechanisms 4 are provided on both sides of the base 3, and the two sliding mechanisms 4 are respectively located on both sides of the top beam 1.

[0028] Different from Example 2, in Example 3 of the present invention, in a unit support for retaining a tunnel along the gob, the number of columns 2 is two, and stable lifting and lowering of the top beam 1 can be achieved through the two columns 2.

[0029] Example 4 like Figure 1As shown, the same as the embodiment 3, the embodiment 4 is a gob-side lane retaining unit support of the present invention, comprising a base 3, on which a retractable column 2 may be provided, a top beam 1 is provided at the retractable end of the column, and a push mechanism 4 is provided on both sides of the base 3, and the two push mechanisms 4 are respectively located on both sides of the top beam 1. The number of the columns 2 is two, and the top beam 1 can be stably raised and lowered by the two columns 2.

[0030] Different from Example 3, in Example 4 of the present invention, in a unit support for retaining lanes along the goaf, the pushing mechanism 4 is preferably a cylinder, the cylinder seat of the cylinder is fixed to the side of the base 3, and the telescopic end of the cylinder extends outward in a horizontal state.

[0031] Example 5 like Figure 1 As shown, a unit support for retaining lanes along the goaf of the present invention comprises a base 3, on which two retractable columns 2 are arranged, and top beams 1 are arranged at the retractable ends of the two columns 2, and sliding mechanisms 4 are arranged on both sides of the base 3, and the two sliding mechanisms 4 are respectively located on both sides of the top beam 1.

[0032] The push mechanism 4 is a cylinder, the cylinder seat of which is fixed to the side of the base 3, and the telescopic end of the cylinder is horizontally extended outward. When working, the unit support 7 of the gob-side lane retaining unit support of the present invention can realize the self-movement of the unit support 7 in the left and right directions of the lane through the push mechanism 4 and the interaction force with the lane side 8 and the wall 9, without the need for external mechanical assistance.

[0033] Both sides of the top beam 1 are provided with lifting rings 6. When the unit bracket 7 is carried by the monorail crane 5, the hooks of the monorail crane 5 can be respectively hung on the lifting rings 6 on both sides to realize the movement of the unit bracket 7 in the up-down direction and the front-back direction.

[0034] Combination Figure 2 The present invention provides a method for moving a unit support along a gob retaining lane, which is specifically implemented according to the following steps: Step 1, when the strength of the gob-side tunnel retaining wall 9 reaches the supporting strength, shrink the column 2 of the gob-side tunnel retaining unit support 7 arranged on one side thereof to lower the height of the top beam 1 so that the top beam 1 is no longer in contact with the roof 10; Step 2: Extend the telescopic end of the push mechanism 4 on one side of the gob-side tunnel retaining wall 9 of the base 3 and the top beam 1 until it contacts the gob-side tunnel retaining wall 9, and then continue to extend, and use the interaction force between the push mechanism 4 and the gob-side tunnel retaining wall 9 to push the base 3 away from the gob-side tunnel retaining wall 9 until it is under the monorail crane 5 in the tunnel, and then retract the push mechanism 4; Step 3, use the hook of the monorail crane 5 to lock the lifting rings 6 on both sides of the top beam 1 and connect them firmly, then lift the entire gob-side lane retaining unit bracket 7 off the tunnel floor 11, use the monorail crane 5 to transport the entire gob-side lane retaining unit bracket 7 to the wall to be poured in front of the tunnel, then lower the gob-side lane retaining unit bracket until its base 3 completely contacts the tunnel floor 11, and then release the lifting ring 6; Step 4, extend the push cylinder 4 on the other side of the base 3 and the top beam 1 until it contacts the lane side 8, and then continue to extend it, and use the interaction force between the push mechanism 4 and the lane side 8 to push the entire gob-side lane retaining unit support 7 away from the lane side 8 until it reaches the side of the wall to be poured in the lane, and then retract the push mechanism 4; Step 5, extend the column 2 to make the top beam 1 contact the tunnel roof 10. At this point, one unit support 7 has completed the frame shifting, and the front and rear supports repeat this cycle until the tunnel is completed.

[0035] Therefore, compared with the prior art, the present invention has the following advantages: (1) The unit support and moving method for gob-side lane retaining of the present invention has a push mechanism disposed on both sides of the base and the top beam, which can realize the self-movement of the unit support in the left and right directions of the lane by utilizing the interaction force with the lane side and the wall, without the need for external mechanical assistance; (2) The unit support and moving method for the gob-side lane retaining of the present invention has a lifting ring on the top beam that can cooperate with the lane monorail crane to realize the movement of the unit support in the up-down direction and the front-back direction in the lane, without the need for a unit support transport vehicle to assist in transportation; (3) The unit support and moving method for retaining the tunnel along the goaf of the present invention can reduce the burden of manual handling and improve work efficiency when applied to ordinary tunnels. The effect is particularly prominent in tunnels with soft bottom plates, large bottom drums, and tunnels that cannot be entered by support transport vehicles.

[0036] Example 6 like Figure 1 As shown, the same as Example 5, Example 6 is a unit support for retaining lanes along the goaf of the present invention, comprising a base 3, on which a retractable column 2 may be provided, and a top beam 1 is provided at the retractable end of the column, and a push mechanism 4 is provided on both sides of the base 3, and the two push mechanisms 4 are respectively located on both sides of the top beam 1. The number of the columns 2 is two, and the top beam 1 can be stably raised and lowered by the two columns 2. The push mechanism 4 is preferably an oil cylinder. Both sides of the top beam 1 are provided with lifting rings 6.

[0037] Different from Example 5, in Example 6, in a gob-side tunnel retaining unit support of the present invention, two lifting rings 6 are symmetrically arranged with the top beam 1 as the center, so that such a design can facilitate stable fixation.

[0038] The above description shows and describes several preferred embodiments of the invention, but as mentioned above, it should be understood that the invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and modifications made by those skilled in the art should be within the scope of protection of the claims attached to the invention without departing from the spirit and scope of the invention.

Claims

1. The unit support for gob-side lane retention is characterized by: It comprises a base (3), a top beam (1) being liftably arranged on the base (3), and sliding mechanisms (4) being arranged on both sides of the base (3), the two sliding mechanisms (4) being respectively located on both sides of the top beam (1).

2. The gob-side lane retaining unit support according to claim 1, characterized in that: A retractable column (2) is provided on the base (3), and the top beam (1) is provided at the driving end of the column (2).

3. The gob-side lane retaining unit support according to claim 2, characterized in that: The number of the columns (2) is two.

4. The gob-side lane retaining unit support according to claim 3, characterized in that: The pushing mechanism (4) is an oil cylinder, the cylinder seat of which is fixed on the side of the base (3), and the telescopic end of the oil cylinder extends outward in a horizontal shape.

5. The gob-side lane retaining unit support according to claim 4, characterized in that: A lifting ring (6) is provided on the side of the top beam (1).

6. The gob-side lane retaining unit support according to claim 5, characterized in that: The number of the lifting rings (6) is two.

7. The gob-side entry retaining unit support according to claim 6, characterized in that: The two lifting rings (6) are symmetrically arranged with the top beam (1) as the center.

8. A method for moving a unit support along a gob retaining tunnel, characterized in that: Follow the steps below to implement it: Step 1, when the strength of the gob-side tunnel retaining wall (9) reaches the supporting strength, the columns (2) of the gob-side tunnel retaining unit bracket (7) arranged on one side thereof are retracted to lower the height of the top beam (1) so that the top beam (1) is no longer in contact with the top plate (10); Step 2, extending the telescopic end of the push mechanism (4) of the base (3) and the top beam (1) on one side of the gob-side tunnel retaining wall (9) until the end contacts the gob-side tunnel retaining wall (9), and then further extending the base (3) by utilizing the interaction force between the push mechanism (4) and the gob-side tunnel retaining wall (9) to push the base (3) away from the gob-side tunnel retaining wall (9) until it is below the monorail crane (5) in the tunnel, and then retracting the push mechanism (4); Step 3, lock the top beam (1) with the hook of the monorail crane (5), then lift the entire gob-side lane retaining unit support (7) off the roadway floor (11), use the monorail crane (5) to transport the entire gob-side lane retaining unit support (7) to the place where the wall is to be poured in front of the roadway, then lower the gob-side lane retaining unit support until its base (3) completely contacts the roadway floor (11), and then release the top beam (1); Step 4, extending the push cylinder (4) on the other side of the base (3) and the top beam (1) until it contacts the sidewall (8), and then further extending the push cylinder (4) to push the entire gob-side lane retaining unit support (7) away from the sidewall (8) by utilizing the interaction force between the push cylinder (4) and the sidewall (8) until it reaches the side of the wall to be poured in the lane, and then retracting the push cylinder (4); Step 5, extending the upright column (2) so that the top beam (1) contacts the tunnel roof (10). At this point, one unit support has completed the frame shifting, and the front and rear supports are repeated in this way until the tunnel is completed.

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