Roadway top false roof supporting system used for being fixed to upper side of hydraulic support

Abstract

The utility model discloses a roadway top false roof supporting system used for being fixed to the upper side of a hydraulic support. The roadway top false roof supporting system comprises a left supporting unit, a right supporting unit and a hydraulic oil cylinder connected with the left supporting unit and the right supporting unit. The hydraulic support is mutually connected and fixed through the hydraulic oil cylinders, so that the hydraulic support can advance towards a working face along with the hydraulic support, the left supporting unit and the right supporting unit are directly and fixedly connected with the left top cover and the right top cover of the hydraulic support respectively, after advancing, a belt stack or a wood stack does not need to be arranged again, and the hydraulic support is directly in contact with the top. And the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of underground hydraulic support support, in particular to a false roof support system for a tunnel top fixed on the upper side of the hydraulic support. Background Art

[0002] The advance support of a certain working face uses ZQL2×4000 29 / 68 type advance hydraulic support, and the maximum normal support height is 6.8m. The thickness of the coal seam in the windward chute of the current working face has increased, and the average roadway height after pulling the bottom in the advance area is 7.5m. As a result, the advance hydraulic support is not connected to the top, and it is difficult to pull and move, affecting the normal safety production of the mining face. In the area where the roadway height exceeds 6.5m, the top plate originally used a belt pile or a wood pile to make a false top, but during the pulling and moving of the advance support, there are cases where the belt pile or the wood pile is overturned due to the pulling and moving of the support and the round wood is brittle and easily broken. There is a risk of falling and injuring people, and the belt pile or the wood pile needs to be re-erected, affecting the normal safety production of the working face. Utility Model Content

[0003] The utility model aims to provide a false roof support system for the tunnel top fixed on the upper side of the hydraulic support, so as to solve the problems of belt stacks or wood stacks turning over due to the pulling of the hydraulic support and the brittle logs being easily broken during the pulling process of the advanced hydraulic support at the tunnel terminal with a tunnel height exceeding 6.5m.

[0004] The utility model adopts the following technical scheme: a false roof support system for a tunnel top fixed on the upper side of a hydraulic support, comprising: a left support unit and a right support unit, and a hydraulic cylinder interconnected with the left support unit and the right support unit;

[0005] The left support unit is horizontally arranged and located on the upper side of the left top cover of the hydraulic support, and is fixedly connected to the left top cover of the hydraulic support. The left support unit is used to support the top of the roadway on the upper side of the left top cover, and is also used to support the top of the roadway as the hydraulic support moves toward the working surface;

[0006] The right support unit is horizontally arranged and located on the upper side of the right top cover of the hydraulic support, and is fixedly connected to the right top cover of the hydraulic support. The right support unit is used to support the top of the roadway on the upper side of the right top cover, and is also used to support the top of the roadway as the hydraulic support moves toward the working surface;

[0007] The fixed end of the hydraulic cylinder is fixed to the right side of the left support unit, and the movable end is fixed to the left side of the right support unit. The hydraulic cylinder is used to extend the right side top cover of the hydraulic support as the hydraulic support moves forward to the right, and is also used to retract the left side top cover of the hydraulic support as the hydraulic support moves forward to the right, thereby completing the advance toward the working surface.

[0008] Further, the left supporting unit and the right supporting unit each include:

[0009] A plurality of forward connecting plates, the direction of which is parallel to the direction of the laneway and are arranged at intervals from each other;

[0010] A plurality of transverse connecting plates, which are arranged perpendicular to the direction of the laneway and spaced apart from each other, and cross-connected with a plurality of forward connecting plates to form a "well"-shaped structure;

[0011] The upper connecting plate is horizontally arranged, located on the upper side of each of the forward connecting plates and the transverse connecting plates, and is fixedly connected to the forward connecting plates and the transverse connecting plates;

[0012] The lower connecting plate is horizontally arranged, located at the lower side of each of the forward connecting plates and the transverse connecting plates, and is fixedly connected to the forward connecting plates and the transverse connecting plates.

[0013] Furthermore, a fixed end of the hydraulic cylinder is fixed to the rightmost transverse connecting plate of the left supporting unit, and a movable end thereof is fixed to the leftmost transverse connecting plate of the right supporting unit.

[0014] Furthermore, the left supporting unit, the right supporting unit and the hydraulic cylinder are provided in multiple pairs.

[0015] The beneficial effects of the utility model are:

[0016] The utility model is connected and fixed to each other through hydraulic cylinders, so it can move toward the working surface along with the hydraulic support, and the left support unit and the right support unit are directly and fixedly connected to the left top cover and the right top cover of the hydraulic support respectively. After moving forward, there is no need to set up belt stacks or wood stacks again, and the hydraulic support is directly connected to the top, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the left supporting unit of the utility model.

[0019] Among them: 10, left support unit; 11, right support unit; 12, hydraulic cylinder; 13, forward connecting plate; 14, transverse connecting plate; 15, upper connecting plate; 16, lower connecting plate. DETAILED DESCRIPTION

[0020] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0021] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more. The "direction" in the present utility model is based on the position of the present utility model in the Figure 1 Description of the trend in the state.

[0022] The utility model discloses a false roof support system for a tunnel top fixed on the upper side of a hydraulic support, such as Figure 1 and Figure 2 As shown, it includes: a left supporting unit 10 and a right supporting unit 11, and a hydraulic cylinder 12 which is interconnected with the left supporting unit 10 and the right supporting unit 11.

[0023] The left support unit 10 is horizontally arranged and located on the upper side of the left top cover of the hydraulic support, and is fixedly connected to the left top cover of the hydraulic support. The left support unit 10 is used to support the top of the tunnel on the upper side of the left top cover, and is also used to support the top of the tunnel as the hydraulic support moves toward the working surface; the right support unit 11 is horizontally arranged and located on the upper side of the right top cover of the hydraulic support, and is fixedly connected to the right top cover of the hydraulic support. The right support unit 11 is used to support the top of the tunnel on the upper side of the right top cover, and is also used to support the top of the tunnel as the hydraulic support moves toward the working surface.

[0024] The fixed end of the hydraulic cylinder 12 is fixed to the right side of the left support unit 10, and the movable end is fixed to the left side of the right support unit 11. The hydraulic cylinder 12 is used to extend the right side top cover of the hydraulic support as the hydraulic support moves forward to the right. The hydraulic cylinder 12 is also used to retract the left side top cover of the hydraulic support as the hydraulic support moves forward to the right, thereby completing the advance toward the working surface.

[0025] The left support unit 10 and the right support unit 11 each include: a plurality of longitudinal connecting plates 13 , a plurality of transverse connecting plates 14 , an upper connecting plate 15 and a lower connecting plate 16 .

[0026] The multiple forward connecting plates 13 are parallel to the lane direction and are spaced apart from each other; the multiple transverse connecting plates 14 are perpendicular to the lane direction and are spaced apart from each other, and are cross-connected with the multiple forward connecting plates 13 to form a "well"-shaped structure.

[0027] The upper connecting plate 15 is horizontally arranged, and the upper connecting plate 15 is located on the upper side of each forward connecting plate 13 and the transverse connecting plate 14, and is fixedly connected to the forward connecting plate 13 and the transverse connecting plate 14; the lower connecting plate 16 is horizontally arranged, and the lower connecting plate 16 is located on the lower side of each forward connecting plate 13 and the transverse connecting plate 14, and is fixedly connected to the forward connecting plate 13 and the transverse connecting plate 14.

[0028] The fixed end of the hydraulic cylinder 12 is fixed to the rightmost transverse connecting plate 14 of the left supporting unit 10, and the movable end of the hydraulic cylinder 12 is fixed to the leftmost transverse connecting plate 14 of the right supporting unit 11. The left supporting unit 10, the right supporting unit 11 and the hydraulic cylinder 12 are provided in pairs.

[0029] Example 1

[0030] The ZQL2×4000 29 / 68 type advance hydraulic support is used for the advance support of the 3310 working face of a certain mine, and the maximum normal support height is 6.8m. The thickness of the coal seam in the windward chute of the current working face has increased, and the average roadway height after the advance area is pulled to 7.5m. As a result, the advance hydraulic support is not connected to the top, and it is difficult to pull and move, affecting the normal safety production of the mining face. In the area where the roadway height exceeds 6.5m, the top plate originally used belt stacks or wood stacks to make a false top, but in the process of pulling and moving the advance support, there are cases where the belt stacks or wood stacks are overturned due to the pulling of the support and the round wood is brittle and easily broken.

[0031] In order to ensure that the advanced hydraulic support is firmly connected to the top and reduce safety risks, the utility model is installed, wherein the length × width of the left support unit 10 and the right support unit 11 is 2300 × 1200 mm, and the thickness can be appropriately adjusted according to the on-site advanced bottom pulling height. Each left support unit 10 and the right support unit 11 is processed with 10 eyelets, and the left support unit 10 and the right support unit 11 are fixed to the top cover of the advanced hydraulic support by using the eyelets of the top cover of the advanced hydraulic support to ensure that the left support unit 10 and the right support unit 11 are firmly and reliably fixed to the top beam of the tunnel.

[0032] The use of the utility model avoids the laying of logs, and can reduce about 8 workers who lay logs on the top beam every day, thus achieving the goal of reducing the number of workers, improving efficiency and increasing safety.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A false roof support system for a tunnel top fixed on the upper side of a hydraulic support, characterized in that: include: A left supporting unit (10), a right supporting unit (11), and a hydraulic cylinder (12) interconnected with the left supporting unit (10) and the right supporting unit (11); The left support unit (10) is horizontally arranged and located on the upper side of the left top cover of the hydraulic support, and is fixedly connected to the left top cover of the hydraulic support. The left support unit (10) is used to support the top of the tunnel on the upper side of the left top cover, and is also used to support the top of the tunnel as the hydraulic support moves toward the working surface; The right support unit (11) is horizontally arranged and located on the upper side of the right top cover of the hydraulic support, and is fixedly connected to the right top cover of the hydraulic support. The right support unit (11) is used to support the top of the tunnel on the upper side of the right top cover, and is also used to support the top of the tunnel as the hydraulic support moves toward the working surface; The fixed end of the hydraulic cylinder (12) is fixed to the right side of the left support unit (10), and the movable end is fixed to the left side of the right support unit (11). The hydraulic cylinder (12) is used to extend when the right side top cover of the hydraulic support moves forward to the right side, and is also used to retract when the left side top cover of the hydraulic support moves forward to the right side, thereby completing the advance toward the working surface.

2. A false roof support system for a tunnel top fixed on the upper side of a hydraulic support according to claim 1, characterized in that: The left supporting unit (10) and the right supporting unit (11) both include: A plurality of forward connecting plates (13), the direction of which is parallel to the direction of the laneway and which are spaced apart from each other; A plurality of transverse connecting plates (14) are arranged perpendicular to the direction of the laneway and are spaced apart from each other, and are cross-connected with a plurality of forward connecting plates (13) to form a "well"-shaped structure; An upper connecting plate (15) is horizontally arranged, located on the upper side of each of the forward connecting plates (13) and the transverse connecting plates (14), and fixedly connected to the forward connecting plates (13) and the transverse connecting plates (14); The lower connecting plate (16) is horizontally arranged, located at the lower side of each of the forward connecting plates (13) and the transverse connecting plates (14), and is fixedly connected to the forward connecting plates (13) and the transverse connecting plates (14).

3. A false roof support system for a tunnel top fixed on the upper side of a hydraulic support according to claim 2, characterized in that: The fixed end of the hydraulic cylinder (12) is fixed to the rightmost transverse connecting plate (14) of the left supporting unit (10), and the movable end is fixed to the leftmost transverse connecting plate (14) of the right supporting unit (11).

4. A false roof support system for a tunnel top fixed on the upper side of a hydraulic support according to claim 1, characterized in that: The left support unit (10), the right support unit (11) and the hydraulic cylinder (12) are provided in multiple pairs.

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