Transverse temporary support unit bracket for gob-side entry retaining

Abstract

The invention discloses a transverse temporary support unit support for gob-side entry retaining, which comprises a base, a pushing mechanism and a telescopic structure are mounted on the base, a telescopic part of the telescopic mechanism is vertically arranged, a top beam is fixed on the telescopic part of the telescopic mechanism, and the side edge of the top beam is connected with a turnover beam through a reciprocating driving mechanism. The problems that an existing unit support is small in roof protection area, an original support in a roadway can be damaged, and the support is difficult to move are solved.

Description

Technical Field

[0001] This invention belongs to the technical field of underground support equipment, specifically relating to a transverse temporary support unit bracket for roadway retention along the goaf. Background Technology

[0002] The technology of pillarless mining with roadway retention along the goaf is of great significance for improving coal resource recovery rate, alleviating the tension of mining continuity, optimizing mine pressure distribution, and reducing the risk of spontaneous combustion in goaf areas. Therefore, it has been promoted and applied in a large number of mines in my country.

[0003] Currently, during the process of leaving roadways along the goaf, to prevent insufficient early support strength of the roadway side support from causing roof subsidence, which could lead to damage to the roadway side support and loss of control of the surrounding rock, a row of unit supports is often arranged at the edge of the roadway side support for temporary auxiliary support. This support method has advantages such as high mechanization, high support resistance, and fast support arrangement speed. However, years of practical application have shown that this support method still has the following problems: (1) Currently, unit supports are often arranged longitudinally along the roadside support structure, with a small roof area. When the roadway width is large or the roadway roof conditions are poor, the top beam of the unit support cannot play a good roof support role. (2) When the unit support is arranged longitudinally, the top beam cannot completely avoid the roof support structure in the roadway, which may damage the anchor bolts (cables) of the roof. (3) When the unit support is moved, it is necessary to manually use jacks or other tools to push the unit support to the position in the tunnel, and then use unit support transport vehicle or monorail crane or other tools to transport it to the designated position and then make adjustments. The process is complicated and there are certain risks.

[0004] Based on the above problems, it is necessary to develop a transverse temporary support unit bracket with self-moving function to increase the roof support range of the unit bracket, while protecting the original support in the roadway from damage and improving the support effect of the unit bracket. Summary of the Invention

[0005] The purpose of this invention is to provide a transverse temporary support unit for roadway entry, in order to solve the problems of small roof support area, damage to the original support in the roadway, and difficulty in moving the current unit support.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a transverse temporary support unit bracket for roadway retention along the goaf, comprising a base, on which a pushing mechanism and a telescopic structure are installed, the telescopic part of the telescopic mechanism is arranged vertically, and the telescopic part of the telescopic mechanism is fixed with a top beam, the side of the top beam being connected to a reciprocating drive mechanism and a flipping beam.

[0007] The technical solution of the present invention also has the following characteristics: As a preferred embodiment of the present invention, the pushing mechanism is a jack.

[0008] As a preferred embodiment of the present invention, the telescopic mechanism comprises two vertically arranged telescopic columns.

[0009] As a preferred embodiment of the present invention, one telescopic column of the telescopic mechanism is arranged obliquely, and the other is arranged vertically.

[0010] As a preferred technical solution of the present invention, the telescopic columns near the inner side of the alley are arranged at an angle.

[0011] As a preferred embodiment of the present invention, the base is further provided with a pull rod.

[0012] As a preferred embodiment of the present invention, the pull rod is a multi-section pull rod.

[0013] As a preferred embodiment of the present invention, the reciprocating drive mechanism is a jack.

[0014] The beneficial effects of this invention are: (1) The present invention provides a transverse temporary support unit bracket for roadway retention, which increases the roof protection range of the top beam and can be used in roadway working faces with large roadway width and complex geological conditions, thus expanding the scope of application; (2) The present invention provides a transverse temporary support unit bracket for use in the roadway, wherein the unit bracket is arranged transversely in the gap of the anchor bolt (cable) in the roadway, which can effectively protect the original support structure in the roadway from being damaged. (3) The present invention provides a transverse temporary support unit bracket for use in the row, wherein a push cylinder is provided on the base to enable the unit bracket to move quickly in the row, which facilitates the handling and arrangement of the unit bracket. (4) The present invention provides a transverse temporary support unit bracket for use in the open space. The inclined arrangement of the columns near the inner side of the alley not only adjusts the stress state of the bracket but also reduces the occupation of the passage in the alley. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the structure of the transverse temporary support unit bracket for the goaf retention method of the present invention; Figure 2 This is a plan view of the layout of the transverse temporary support unit bracket for the goaf retention method of the present invention in the goaf. Figure 3This is a cross-sectional view of the layout of the transverse temporary support unit bracket for the goaf retention of the present invention in the goaf.

[0016] In the diagram: 1. Base, 2. Pushing mechanism, 3. Telescopic mechanism, 4. Pull-out rod, 5. Reciprocating drive mechanism, 6. Top beam, 7. Tilting beam. Detailed Implementation

[0017] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] Example 1 like Figure 1 As shown, a transverse temporary support unit bracket for a goaf-side roadway according to the present invention includes a base 1, on which a pushing mechanism 2 and a telescopic structure 3 are installed. The telescopic part of the telescopic mechanism 3 is arranged vertically, and a top beam 6 is fixed to the telescopic part of the telescopic mechanism 3. The side of the top beam 6 is connected to a reciprocating drive mechanism 5 and a flipping beam 7.

[0019] Two sets of pushing mechanisms 2 are arranged on each of the left and right sides of the base 1 to adjust the position of the unit bracket, so as to facilitate the handling and arrangement of the unit bracket.

[0020] like Figure 2 As shown, a transverse temporary support unit bracket for use in open spaces is arranged transversely in the gaps between the roof anchors (cables) to increase the roof protection area of ​​the roof beam in the roadway, reduce the open roof area in the roadway, and avoid damage to the roadway support.

[0021] like Figure 3 As shown, when a transverse temporary support unit for a roadway is arranged, the placement position of the unit support is quickly adjusted by pushing the jack 2 on the right side. After the adjustment is in place, the column 3 and the pull rod 4 are extended to connect with the top beam 6, and then the roof support 5 is opened to allow the flip beam 7 to unfold and complete the support for the roof. When the unit support is moved, the roof support jack 5 is first retracted to retract the flip beam 7, and then the column 3 and the pull rod 4 are lowered to reduce the height of the unit support. Then, the unit support is quickly pushed to the position in the roadway by pushing the jack 2 on the left side, and then quickly transferred by the unit support transport vehicle.

[0022] In summary, this invention provides a transverse temporary support unit for roadway clearance, which changes the structural form and arrangement of the unit support, increases the roof protection area of ​​the top beam, protects the original support of the roof in the roadway, and enables the unit support to move and be transported quickly. In addition, the unit support has a simple and reliable structure, can be flexibly arranged in the roadway as needed, and expands the scope of application.

[0023] Example 2 Similar to Example 1, as Figure 1As shown in Embodiment 2, a transverse temporary support unit bracket for roadway retention according to the present invention also includes a base 1. A pushing mechanism 2 and a telescopic structure 3 are installed on the base 1. The telescopic part of the telescopic mechanism 3 is arranged vertically, and a top beam 6 is fixed to the telescopic part of the telescopic mechanism 3. The side of the top beam 6 is connected to a reciprocating drive mechanism 5 and a flipping beam 7.

[0024] Two sets of pushing mechanisms 2 are arranged on each of the left and right sides of the base 1 to adjust the position of the unit bracket, so as to facilitate the handling and arrangement of the unit bracket.

[0025] like Figure 2 As shown, a transverse temporary support unit bracket for use in open spaces is arranged transversely in the gaps between the roof anchors (cables) to increase the roof protection area of ​​the roof beam in the roadway, reduce the open roof area in the roadway, and avoid damage to the roadway support.

[0026] like Figure 3 As shown, when a transverse temporary support unit for a roadway is arranged, the placement position of the unit support is quickly adjusted by pushing the jack 2 on the right side. After the adjustment is in place, the column 3 and the pull rod 4 are extended to connect with the top beam 6, and then the roof support 5 is opened to allow the flip beam 7 to unfold and complete the support for the roof. When the unit support is moved, the roof support jack 5 is first retracted to retract the flip beam 7, and then the column 3 and the pull rod 4 are lowered to reduce the height of the unit support. Then, the unit support is quickly pushed to the position in the roadway by pushing the jack 2 on the left side, and then quickly transferred by the unit support transport vehicle.

[0027] Unlike Embodiment 1, in Embodiment 2, a transverse temporary support unit bracket for goaf retention according to the present invention uses both the pushing mechanism 2 and the reciprocating drive mechanism 5 as jacks. The tilting beam is retracted by the jack connected to the top beam, which controls the support range of the top beam of the control unit bracket.

[0028] Example 3 Similar to Example 2, as Figure 1 As shown in Embodiment 2, a transverse temporary support unit bracket for roadway retention according to the present invention also includes a base 1. A pushing mechanism 2 and a telescopic structure 3 are installed on the base 1. The telescopic part of the telescopic mechanism 3 is arranged vertically, and a top beam 6 is fixed to the telescopic part of the telescopic mechanism 3. The side of the top beam 6 is connected to a reciprocating drive mechanism 5 and a flipping beam 7.

[0029] Two sets of pushing mechanisms 2 are arranged on each of the left and right sides of the base 1 to adjust the position of the unit bracket, so as to facilitate the handling and arrangement of the unit bracket.

[0030] like Figure 2As shown, a transverse temporary support unit bracket for use in open spaces is arranged transversely in the gaps between the roof anchors (cables) to increase the roof protection area of ​​the roof beam in the roadway, reduce the open roof area in the roadway, and avoid damage to the roadway support.

[0031] like Figure 3 As shown, when a transverse temporary support unit for a roadway is arranged, the placement position of the unit support is quickly adjusted by pushing the jack 2 on the right side. After the adjustment is in place, the column 3 and the pull rod 4 are extended to connect with the top beam 6, and then the roof support 5 is opened to allow the flip beam 7 to unfold and complete the support for the roof. When the unit support is moved, the roof support jack 5 is first retracted to retract the flip beam 7, and then the column 3 and the pull rod 4 are lowered to reduce the height of the unit support. Then, the unit support is quickly pushed to the position in the roadway by pushing the jack 2 on the left side, and then quickly transferred by the unit support transport vehicle.

[0032] Both the pushing mechanism 2 and the reciprocating drive mechanism 5 are jacks. The tilting beam is retracted by the jack connected to the top beam, which is used to control the support range of the top beam of the control unit bracket.

[0033] Unlike Embodiment 2, in Embodiment 3, a transverse temporary support unit bracket for goaf retention according to the present invention is provided on the base 1, and a pull rod 4 is also provided on the base 1. The lower part of the pull rod 4 is fixed to the base 1, and the upper part is hinged to the top beam 6 and can extend and retract together with the telescopic mechanism 3 to increase the overall torsional resistance of the bracket.

[0034] The unit support is quickly positioned by pushing the jack 2 on the right. After it is in place, the column 3 and the pull rod 4 are extended to connect with the top beam 6. Then the roof support 5 is opened to allow the tilting beam 7 to unfold and complete the support of the roof. When moving the unit support, the roof support jack 5 is first retracted to allow the tilting beam 7 to retract. Then the column 3 and the pull rod 4 are lowered to reduce the height of the unit support. Then the unit support is quickly moved to the position in the tunnel by pushing the jack 2 on the left. Then it is quickly transferred by the unit support transport vehicle.

[0035] Example 4 Similar to Example 3, as Figure 1 As shown in Embodiment 4, a transverse temporary support unit bracket for roadway retention according to the present invention also includes a base 1. A pushing mechanism 2 and a telescopic structure 3 are installed on the base 1. The telescopic part of the telescopic mechanism 3 is arranged vertically, and a top beam 6 is fixed to the telescopic part of the telescopic mechanism 3. The side of the top beam 6 is connected to a reciprocating drive mechanism 5 and a flipping beam 7.

[0036] Two sets of pushing mechanisms 2 are arranged on each of the left and right sides of the base 1 to adjust the position of the unit bracket, so as to facilitate the handling and arrangement of the unit bracket.

[0037] like Figure 2As shown, a transverse temporary support unit bracket for use in open spaces is arranged transversely in the gaps between the roof anchors (cables) to increase the roof protection area of ​​the roof beam in the roadway, reduce the open roof area in the roadway, and avoid damage to the roadway support.

[0038] like Figure 3 As shown, when a transverse temporary support unit for a roadway is arranged, the placement position of the unit support is quickly adjusted by pushing the jack 2 on the right side. After the adjustment is in place, the column 3 and the pull rod 4 are extended to connect with the top beam 6, and then the roof support 5 is opened to allow the flip beam 7 to unfold and complete the support for the roof. When the unit support is moved, the roof support jack 5 is first retracted to retract the flip beam 7, and then the column 3 and the pull rod 4 are lowered to reduce the height of the unit support. Then, the unit support is quickly pushed to the position in the roadway by pushing the jack 2 on the left side, and then quickly transferred by the unit support transport vehicle.

[0039] Both the pushing mechanism 2 and the reciprocating drive mechanism 5 are jacks. The tilting beam is retracted by the jack connected to the top beam, which is used to control the support range of the top beam of the control unit bracket.

[0040] The base 1 is also equipped with a pull rod 4. The lower part of the pull rod 4 is fixed to the base 1, and the upper part is hinged to the top beam 6. It can extend and retract together with the telescopic mechanism 3 to increase the overall torsional resistance of the support.

[0041] The unit support is quickly positioned by pushing the jack 2 on the right. After it is in place, the column 3 and the pull rod 4 are extended to connect with the top beam 6. Then the roof support 5 is opened to allow the tilting beam 7 to unfold and complete the support of the roof. When moving the unit support, the roof support jack 5 is first retracted to allow the tilting beam 7 to retract. Then the column 3 and the pull rod 4 are lowered to reduce the height of the unit support. Then the unit support is quickly moved to the position in the tunnel by pushing the jack 2 on the left. Then it is quickly transferred by the unit support transport vehicle.

[0042] Unlike Embodiment 3, in Embodiment 4, a transverse temporary support unit bracket for a goaf-side retaining structure according to the present invention includes a telescopic mechanism 3 comprising two vertically arranged telescopic columns, with the telescopic column closer to the inside of the goaf arranged at an angle. The telescopic column closer to the wall is arranged vertically, while the one closer to the inside of the goaf is arranged at a certain angle towards the goaf, to reduce the occupation of space within the goaf and adjust the stress distribution of the unit bracket.

[0043] Example 5 Unlike Embodiment 4, in Embodiment 5, a transverse temporary support unit bracket for goaf retention according to the present invention, the pull rod 4 is a multi-section pull rod that can be retracted according to different heights.

[0044] Example 6 Unlike Embodiment 5, in Embodiment 6, a transverse temporary support unit bracket for roadway retention according to the present invention, the reciprocating drive mechanism 5 is a jack.

[0045] In summary, compared with the prior art, the present invention has the following advantages: (1) The present invention provides a transverse temporary support unit bracket for roadway retention, which increases the roof protection range of the top beam and can be applied to roadway working faces with large roadway width and complex geological conditions, thus expanding the scope of application; (2) The present invention provides a transverse temporary support unit bracket for use in the roadway, wherein the unit bracket is arranged transversely in the gap of the anchor bolt (cable) in the roadway, which can effectively protect the original support structure in the roadway from being damaged. (3) The present invention provides a transverse temporary support unit bracket for use in the row, wherein a push cylinder is provided on the base to enable the unit bracket to move quickly in the row, which facilitates the handling and arrangement of the unit bracket. (4) The present invention provides a transverse temporary support unit bracket for use in the open space. The inclined arrangement of the columns near the inner side of the alley not only adjusts the stress state of the bracket but also reduces the occupation of the passage in the alley.

[0046] The foregoing description illustrates and describes several preferred embodiments of the invention. However, as previously stated, it should be understood that the invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the invention should be within the protection scope of the appended claims.

Claims

1. A transverse temporary support unit prop for gateroad driving, characterized in that, The base (1) is provided with a pushing mechanism (2) and a telescopic structure (3), the telescopic part of the telescopic structure (3) is arranged vertically, and the telescopic part of the telescopic structure (3) is fixed with a top beam (6), and the side edges of the top beam (6) are connected through a reciprocating driving mechanism (5) and a turnover beam (7).

2. A transverse temporary support unit set for gob-side entry retaining according to claim 1, characterized in that, The pushing mechanism (2) is a jack.

3. A transverse temporary support unit set for gob-side entry retaining according to claim 2, characterized in that, The telescopic structure (3) comprises two vertically arranged telescopic columns.

4. A transverse temporary support unit set for gob-side entry retaining according to claim 3, characterized in that, One of the telescopic columns in the telescopic structure (3) is arranged obliquely, and the other is arranged vertically.

5. A transverse temporary support unit set for gob-side entry retaining according to claim 4, characterized in that, The telescopic column close to the inner side of the lane is arranged obliquely.

6. A transverse temporary support unit set for gob-side entry retaining according to claim 5, characterized in that, The base (1) is further provided with a pull rod (4).

7. A transverse temporary support unit set for gob-side entry retaining according to claim 6, characterized in that, The pull rod (4) is a multi-section pull rod.

8. A transverse temporary support unit set for gob- side entry retaining according to claim 1, characterized in that, The reciprocating driving mechanism (5) is a jack.

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