A kind of advanced reinforced support bracket and the transport method of advanced reinforced support bracket

Abstract

The present invention relates to the technical field of coal industry, and in particular to an advance reinforced support bracket and a method for transporting the advance reinforced support bracket. The advance reinforced support bracket provided by the present invention can be folded to reduce its width, so as to facilitate transportation. The present invention is widely applicable to various irregular deformations of tunnels, and can be used for advance reinforced support of mining tunnels.

Description

Technical Field

[0001] The invention relates to the technical field of coal industry, and in particular to an advanced reinforced support bracket and a method for moving the advanced reinforced support bracket. Background Art

[0002] In order to prevent the deformation, movement and destruction of the tunnel surrounding rock caused by the superposition of the advance support pressure of the coal mining face and the support pressure along the inclined direction, and to ensure the smooth flow of the upper and lower exits of the working face, the two lanes of the coal mining face need to adopt advance reinforcement support. The most distinctive feature of advance support is that the advance support equipment needs to be continuously moved forward as the coal mining face moves forward. According to the domestic advance support equipment transportation method, advance support can be divided into five categories: manual transportation, step-by-step transportation, crawler self-movement, handling and monorail lifting.

[0003] At present, the manual transportation of advance support equipment has prominent problems such as large number of workers, low efficiency, great difficulty in transportation, high labor intensity of workers, and frequent safety accidents during the transportation process, which seriously affects the increase of coal production.

[0004] The step-type hydraulic support can be divided into an integral advance support hydraulic support and a split advance support group. The main problem of the step-type moving method is that the roof must be supported repeatedly for the needs of advance support movement, which can easily cause the roof to break and is not conducive to the safe management and maintenance of the roof. The self-moving mechanism used by the step-type hydraulic support will cause serious damage to the bottom plate of the tunnel;

[0005] Crawler-type advanced support is a method of moving the frame with pressure. The sliding friction generated by this method of moving the frame will seriously affect the service life of the support, and will bring defects such as large forward resistance and extremely unstable walking, which can easily endanger the safety of tunnel personnel. At the same time, when the bottom plate is soft or uphill, the crawler-type hydraulic support is difficult to move.

[0006] The advance support bracket group transported by the trackless rubber-wheeled vehicle has the following problems: when the bottom plate of the roadway is bulging or soft and muddy, the vehicle is difficult to pass even when it is unloaded. The diesel engine is used as the power, and the exhaust gas in the chute is easy to exceed the standard and alarm. At the same time, the automobile transportation system occupies a large space and has relatively poor safety.

[0007] When using a monorail crane to transport advance support equipment, the monorail crane uses the anchor rod (cable) above the tunnel as the suspension point. As the working surface moves forward, the monorail crane also needs to be moved forward and installed repeatedly, which increases the workload of advance support. In addition, the suspension point of the monorail crane is easily affected by the installation quality and is not firm enough, which is easy to fall and cause injuries. When transporting the advance support equipment, the monorail crane is easy to swing freely in the middle of the tunnel, which poses a great safety hazard.

[0008] With the continuous increase in the speed of working face advancement and the height of tunnels, the requirements for the transportation of advance enhanced support equipment in the drift are constantly increasing. How to increase the speed of advance support transportation of the coal mining face to meet the mining requirements of the working face while ensuring safety, while conforming to the current era theme of mechanization and reduction of manpower in coal mines, has become a technical problem that urgently needs to be solved in the advanced support technical equipment set.

[0009] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0010] The purpose of the present invention is to provide an advanced reinforced support bracket to solve the technical problems existing in the prior art.

[0011] In order to achieve the above object, the present invention adopts the following technical solutions:

[0012] The present invention provides an advanced reinforced support bracket, characterized in that two sides of the advanced reinforced support bracket reduce their own width by folding.

[0013] As a further technical solution, the advance reinforced support bracket includes: a first main beam, a connecting beam, a second main beam and a jacking mechanism; the first main beam and the connecting beam are movably connected; the second main beam and the connecting beam are movably connected; the lower parts of the first main beam and the second main beam are both provided with the jacking mechanism.

[0014] As a further technical solution, the advanced reinforced support bracket includes: the first main beam is connected to the connecting beam through a cross-axis joint and a hinge joint in sequence; the second main beam is connected to the connecting beam through a cross-axis joint and a hinge joint in sequence.

[0015] As a further technical solution, the advanced reinforced support bracket includes: a driven wheel; the driven wheel is arranged on the connecting beam of the advanced reinforced support bracket.

[0016] As a further technical solution, the advanced reinforced support bracket includes: an oil accumulator; the oil accumulator is arranged on the top extension mechanism of the advanced reinforced support bracket.

[0017] As a further technical solution, the advanced reinforced support bracket includes: an articulated seat; the jacking mechanism is connected to the articulated seat, and the jacking mechanism can swing around the articulated seat.

[0018] As a further technical solution, the advance reinforced support bracket includes: the deployed state of the advance reinforced support bracket is unidirectionally inclined.

[0019] As a further technical solution, the advanced reinforced support bracket includes: the expanded state of the advanced reinforced support bracket is arched.

[0020] In order to achieve the above object, the present invention adopts the following technical solutions:

[0021] The present invention provides a method for moving an advanced reinforced support bracket, comprising the following steps:

[0022] The advanced reinforced support bracket is transported to the designated location by means of transport equipment.

[0023] By adopting the above technical solution, the present invention has the following beneficial effects:

[0024] The advanced reinforcement support bracket provided by the present invention can reduce its own width by folding, so as to facilitate transportation. The present invention is widely applicable to various irregular deformations of tunnels, and can be used for advanced reinforcement support of mining tunnels. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A three-dimensional diagram of an advanced reinforced support bracket provided by an embodiment of the present invention;

[0027] Figure 2 A side view of an advanced reinforced support bracket provided by an embodiment of the present invention;

[0028] Figure 3 A three-dimensional diagram of an advanced reinforced support bracket provided by an embodiment of the present invention;

[0029] Figure 4 A side view of an advanced reinforced support bracket provided by an embodiment of the present invention;

[0030] Figure 5 A schematic diagram of the swing state of the advanced reinforced support bracket provided in an embodiment of the present invention;

[0031] Figure 6 A schematic diagram of a folded state of an advanced reinforced support bracket provided in an embodiment of the present invention;

[0032] Figure 7 A schematic diagram of the movement of the advanced reinforced support bracket hanging on a monorail provided in an embodiment of the present invention;

[0033] Figure 8 A schematic diagram of the advance reinforced support bracket provided in an embodiment of the present invention being transported through a closed-loop transport mechanism.

[0034] Icons: 101-first main beam; 102-cross-axis joint; 103-hinge-axis joint; 104-driven wheel; 105-connecting beam; 106-oil accumulator; 107-second main beam; 108-lifting mechanism; 109-articulated seat; 110-monorail. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0039] Embodiment 1

[0040] Combination Figures 1 to 6 As shown, the first embodiment of the present invention provides an advanced reinforced support bracket, and the two sides of the advanced reinforced support bracket reduce their own width by folding.

[0041] In this embodiment, preferably, the advance reinforced support bracket includes: a first main beam 101, a connecting beam 105, a second main beam 107 and a jacking mechanism 108; the first main beam 101 and the connecting beam 105 are movably connected; the second main beam 107 and the connecting beam 105 are movably connected; the lower part of the first main beam 101 and the second main beam 107 is provided with the jacking mechanism 108. The advance reinforced support bracket provided by the present invention can reduce its own width by folding, so as to facilitate transportation. The present invention is widely adaptable to various irregular deformations of tunnels, and can be used for advance reinforced support of mining tunnels.

[0042] In this embodiment, specifically, the first main beam 101 and the second main beam 107 are symmetrically arranged relative to the connecting beam 105 .

[0043] Preferably, the lengths of the first main beam 101 and the second main beam 107 are both greater than the connecting beam 105;

[0044] Preferably, the widths of the first main beam 101 and the second main beam 107 are both greater than the connecting beam 105;

[0045] Preferably, the bottom surfaces of the outer ends of the first main beam 101 and the second main beam 107 are inclined surfaces.

[0046] As a further technical solution, the advance reinforced support bracket includes: the first main beam 101 is connected to the connecting beam 105 through a cross-axis joint 102 and a hinge joint 103 in sequence; the second main beam 107 is connected to the connecting beam 105 through a cross-axis joint 102 and a hinge joint 103 in sequence.

[0047] Preferably, the connecting beam 105 can be understood as being divided into three parts, including: the left side of the connecting beam 105, the middle part of the connecting beam 105, and the right side of the connecting beam 105; the first main beam 101 is connected to the left side of the connecting beam 105 through a cross-axis joint 102; the left side of the connecting beam 105 and the middle part of the connecting beam 105 are connected through a hinge joint 103 to achieve rotation in a certain direction; of course, further, the left side of the connecting beam 105 and the middle part of the connecting beam 105 respectively have a notch to ensure that the two rotate in the same direction; similarly, the middle part of the connecting beam 105 and the right side of the connecting beam 105 are also connected through the hinge joint 103; similarly, the second main beam 107 is connected to the right side of the connecting beam 105 through a cross-axis joint 102.

[0048] In this embodiment, as a further technical solution, the advanced reinforcement support bracket further includes: a driven wheel 104; the driven wheel 104 is arranged on the advanced reinforcement support bracket. The number of the driven wheels 104 can be one or more, which can be flexibly adjusted according to actual needs.

[0049] In this embodiment, as a further technical solution, the advance reinforced support bracket includes: an oil accumulator 106; the oil accumulator 106 is arranged on the advance reinforced support bracket. It is worth noting that the position of the oil accumulator 106 can be flexibly set, and it is only presented here as an example, and other setting positions belong to the protection scope of this application. The main function of the oil accumulator 106 is to store the hydraulic oil released by the pressure relief after the safety valve is opened, and return the stored hydraulic oil to the piston rod cylinder after the bracket is depressurized. After the advance reinforced support bracket is supported in the tunnel, the top and bottom plates of the advance support section will converge and deform, causing the piston rod to extend from the top and bottom plates. At this time, in order to avoid damage to the bracket, a pressure relief safety valve will be set on the cylinder (top extension mechanism 108), and an opening pressure will be set. When the top and bottom plates of the tunnel are deformed, the piston rod will contract, the safety valve will open, and the hydraulic oil leaked from the safety valve will squeeze into the oil accumulator 106.

[0050] In this embodiment, as a further technical solution, the advanced reinforcement support bracket includes: an articulated seat 109; the jacking mechanism 108 is connected to the first main beam 101 or the second main beam 107 through the articulated seat 109. The jacking mechanism 108 can realize a swinging action, so that the first main beam 101 and the second main beam 107 form a certain inclination angle, that is, the top support surface of the first main beam 101 and the second main beam 107 can be an inclined surface or a plane.

[0051] In this embodiment, combined with Figure 1 to Figure 2 As shown, as a further technical solution, the advance reinforced support bracket includes: the unfolded state of the advance reinforced support bracket is unidirectionally inclined.

[0052] In this embodiment, combined with Figure 3 to Figure 4 As shown, as a further technical solution, the advanced reinforced support bracket includes: the expanded state of the advanced reinforced support bracket is arched.

[0053] Embodiment 2

[0054] Combination Figure 7 , Figure 8 As shown, this embodiment provides a method for transporting an advanced reinforced support bracket, comprising the following steps: transporting the advanced reinforced support bracket to a designated position by a transporting device.

[0055] For example, for transport equipment, the following can be used: Figure 7The way the monorail moves is shown.

[0056] A monorail suspension mechanism and a gear drive mechanism are provided on the top beam of each support. A rack is laid on the upper surface of the monorail, and a pulley for transportation is hung. When the support at the end of the support group needs to be withdrawn, the support is first lowered and folded, and then hung on the transportation pulley and transported to the support position through the monorail 110. Finally, the driving gear set on the top beam drives the entire monorail 110 to move forward one step.

[0057] For example: For transport equipment, the following can also be used Figure 8 The closed-loop conveying mechanism shown.

[0058] Preferably, the closed-loop conveying mechanism forms a closed-loop motion above and below the advanced reinforced support bracket. Alternatively, the closed-loop conveying mechanism forms a closed-loop motion below the advanced reinforced support bracket.

[0059] Specifically, the specific form of the closed-loop conveying mechanism can be flexibly set according to actual needs.

[0060] In this embodiment, preferably, the closed-loop annular conveying mechanism includes: an annular conveyor belt, an annular conveyor chain or an annular conveyor rope. It can be understood that the closed-loop annular conveying mechanism in this embodiment can adopt any one of annular conveyor belt, annular conveyor chain or annular conveyor rope. In this embodiment, the annular conveyor belt, annular conveyor chain or annular conveyor rope is not a completely closed-loop motion, which can be understood as a kind of sawing motion. Of course, the annular conveyor belt, annular conveyor chain or annular conveyor rope can be in a closed-loop form or in an open form, which can be flexibly adjusted according to actual needs.

[0061] In this embodiment, the endless conveyor belt, endless conveyor chain or endless conveyor cable can be in the form of a single chain, a double chain or a multi-chain. Meanwhile, the closed-loop endless conveyor mechanism can also be divided into beam-around motion or non-beam-around motion.

[0062] For example: This embodiment adopts a double-ring conveyor chain system for transporting the advanced reinforced support bracket of the mining working face, and the closed-loop ring conveyor mechanism adopts beam-circling motion.

[0063] For example: This embodiment adopts a single ring conveyor chain for the transportation system of the advance reinforced support bracket of the mining working face, and the closed-loop ring conveyor mechanism adopts beam-circling motion.

[0064] For example, this embodiment adopts a non-beam-around movement system for the advance reinforcement support support of the mining face. The closed-loop annular transmission mechanism adopts non-beam-around movement, and a transmission tail is arranged below the advance reinforcement support support, and a single sprocket or a double sprocket can be arranged at the transmission tail.

[0065] For example, this embodiment adopts a conveyor belt conveyor system for the advanced reinforcement support support of the mining working face. The closed-loop conveyor mechanism adopts beam-circling motion.

[0066] For example, this embodiment adopts a single ring conveyor chain for the transport system of the advance reinforcement support bracket of the mining working face. A horizontally arranged driven wheel is arranged below the advance reinforcement support bracket, and of course, the corresponding driving wheel is also arranged horizontally.

[0067] For example, this embodiment adopts a follow-up chain transmission system and a follow-up transport system. A chain transmission system driven wheel is set at the unloading point of the transport chute scraper head, and a chain transmission system driving sprocket is set at the unloading point of the transfer machine. As the coal mining face moves forward, the scraper, crusher, and transfer machine of the transport chute also move forward, so the chain transmission driving sprocket and driven wheel set at the unloading point of the transport chute scraper and transfer machine also move forward. A follow-up chain transmission system is formed.

[0068] When the comprehensive mining working face advances forward by one step, first drive the driving wheel of the chain transmission system to drive the carrying platform to move to the bottom of the support to be transported; operate the retraction manipulator to grab the top beam and the single columns on both sides; retract the piston rod of the single column to shrink it to the minimum height; operate the retraction manipulator to rotate the crossbeam 90° around the gripping point of the manipulator, and then place the crossbeam on the carrying platform of the chain transmission system; operate the retraction manipulator to rotate, translate, lift and lower the single column around the gripping point of the manipulator, and place it on the carrying platform of the chain transmission system; the retraction process is completed. At this time, drive the driving wheel of the chain transmission system to drive the carrying platform and the transported support to the place to be re-supported; operate the re-support manipulator to adjust the crossbeam to the appropriate height and posture to be supported; operate the re-support manipulator to align the two single columns and connect them to the crossbeam; extend the piston rod of the single column to support the top beam to the predetermined position to complete the re-support.

[0069] In this embodiment, preferably, the closed-loop annular conveying mechanism includes: a driving machine head; the driving machine head provides a power source for an annular conveyor belt, an annular conveyor chain or an annular conveyor cable. The driving machine head includes: a pushing mechanism, a supporting mechanism and a driving mechanism; the pushing mechanism is connected to the supporting mechanism; the supporting mechanism is supported between the top and bottom plates of the tunnel by a supporting oil cylinder; the pushing mechanism is connected to the driving mechanism by a push-pull oil cylinder; the driving mechanism is used to drive the annular conveyor belt, annular conveyor chain or annular conveyor cable for transmission.

[0070] In this embodiment, preferably, the closed-loop annular conveying mechanism includes: a carrying platform for clamping the advance reinforcement support bracket; the carrying platform moves synchronously with the closed-loop conveying mechanism. A hydraulic clamping device is arranged on the carrying platform, and the hydraulic clamping device is used to clamp the crossbeam of the advance reinforcement support bracket. The carrying platform is provided with a lifting platform; the lifting platform is used to drive the hydraulic clamping device to move up and down; the lifting platform is mounted on the annular conveyor belt, annular conveyor chain or annular conveyor rope of the closed-loop conveying mechanism. The carrying platform is provided with a balancing support column leg. The carrying platform is provided with a translation mechanism; the translation mechanism is arranged on the lifting platform, and the translation mechanism is used to drive the hydraulic clamping device to move horizontally. The carrying platform is provided with a rotating mechanism; the rotating mechanism is arranged on the translation mechanism; the hydraulic clamping device is arranged on the rotating mechanism; the rotating mechanism is used to drive the hydraulic clamping device to rotate horizontally.

[0071] The present invention transports the advanced reinforced support bracket to be withdrawn to the designated position through a closed-loop transport mechanism, realizes the mechanized operation of the entire process of advanced support support withdrawal and transportation, greatly reduces the labor intensity of advanced support, and eliminates the potential safety hazards of advanced support withdrawal, transportation and support, and solves the problems of uneven roadway floor, narrow space, and difficulty in support, withdrawal and transportation of advanced reinforced brackets. The present invention is mainly used for advanced support of mining working faces and has great application prospects in coal mines.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An advanced reinforced support bracket, characterized in that: The two sides of the advanced reinforced support bracket reduce their own width by folding; it includes: a first main beam, a connecting beam, a second main beam and a jacking mechanism; the first main beam and the connecting beam are movably connected; the second main beam and the connecting beam are movably connected; the lower parts of the first main beam and the second main beam are both provided with the jacking mechanism; the connecting beam is divided into three parts, including: the left side of the connecting beam, the middle part of the connecting beam, and the right side of the connecting beam; the first main beam and the left side of the connecting beam are connected by a cross-axis joint; the left side of the connecting beam and the middle part of the connecting beam are connected by a hinge joint to achieve rotation in a certain direction; the left side of the connecting beam and the middle part of the connecting beam respectively have a notch to ensure that the two rotate in the same direction; the middle part of the connecting beam and the right side of the connecting beam are also connected by a hinge joint; the second main beam and the right side of the connecting beam are connected by a cross-axis joint; it also includes: a driven wheel; the driven wheel is arranged on the connecting beam of the advanced reinforced support bracket.

2. The advanced reinforced support bracket according to claim 1, characterized in that: Also includes: Oil accumulator; the oil accumulator is arranged on the top extension mechanism of the advanced reinforced support bracket.

3. The advanced reinforced support bracket according to claim 1 is characterized in that: Also includes: The hinged seat; the jacking and extending mechanism is connected to the hinged seat, and the jacking and extending mechanism can swing around the hinged seat.

4. The advanced reinforced support bracket according to any one of claims 1 to 3, characterized in that: The deployed state of the advanced reinforced support bracket is unidirectionally inclined.

5. The advanced reinforced support bracket according to any one of claims 1 to 3, characterized in that: The advanced reinforced support bracket is distributed in an arch shape in the unfolded state.

6. A method for transporting an advanced reinforced support bracket, characterized in that: The steps include: The advanced reinforced support bracket according to any one of claims 1 to 5 is transported to a designated location by means of transport equipment.

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