Roadway roof protection equipment

Abstract

The invention relates to the technical field of mining equipment, and provides roadway roof protection equipment. In the protection equipment, the supporting unit is installed on the self-walking unit and can be driven by the self-walking unit to move in the roadway, and the supporting unit can be stretched and unfolded in the height direction and the width direction of the roadway to support a roadway top plate, so that the construction safety of the roadway intersection is effectively guaranteed; the problems of complex construction procedures, long construction period, large material quantity and the like when a special hydraulic support and an interchange protection frame are adopted in the traditional manual roadway support construction process are fundamentally solved, heavy physical labor operation and potential construction safety hazards in the traditional construction process are thoroughly eliminated, the roadway construction efficiency is improved, and the construction cost is reduced. And the construction safety of the roadway is greatly improved, and safe and efficient production of a mine is guaranteed.

Description

Technical Field

[0001] This application relates to the field of mining equipment technology, and in particular to a roadway roof protection device. Background Technology

[0002] Roadways are essential production and life channels in underground coal mines. In the design of mine roadway engineering, in order to reduce the amount of tunneling work and meet the needs of safe and efficient mine production, it is inevitable that roadways will intersect at close range in three dimensions.

[0003] In the construction process of tunnels intersecting at close range, when the newly excavated tunnel is above and the existing tunnel is below, it is necessary to first accurately determine the relative position and distance between the newly excavated tunnel and the existing tunnel in space, and then reinforce the support of the existing tunnel as early as possible at the tunnel intersection to ensure construction safety and tunnel stability.

[0004] Currently, in terms of construction protection at roadway intersections, the traditional reinforcement and support method of manually erecting intersection protection frames is still used. The process of manually erecting intersection protection frames is cumbersome and complicated. It is not only labor-intensive, but also time-consuming, labor-intensive, and extremely costly. In addition, it poses great safety hazards during construction, and the safety of construction personnel cannot be effectively guaranteed.

[0005] Therefore, there is an urgent need to provide a technical solution that addresses the shortcomings of the existing technology. Summary of the Invention

[0006] The purpose of this application is to provide a roadway roof protection device to solve or alleviate the problems existing in the prior art.

[0007] To achieve the above objectives, this application provides the following technical solution: This application provides a roadway roof protection device for temporary support during construction at roadway intersections, the protection device comprising: a self-propelled unit; A support unit is installed on the self-propelled unit and can move in the roadway under the drive of the self-propelled unit. The support unit can extend and retract along the height and width of the roadway to support the roadway roof.

[0008] Preferably, the support unit includes: a roof protection device for contacting the roadway roof to provide temporary support; a support extension unit slidably fitted onto the roof protection device and capable of telescopic movement along the width of the roadway; a fixed support telescopic module located on the self-propelled unit for driving the roof protection device to move along the height of the roadway; and a folding support telescopic module installed on the support extension unit, capable of folding and retracting onto the support extension unit, or unfolding and telescopic movement along the height of the roadway, so as to support the roadway roof together with the fixed support telescopic module through the support extension unit and the roof protection device.

[0009] Preferably, the roof protection device is provided with an extended installation part along the width direction of the roadway; the support extension unit is slidably fitted onto the extended installation part and is connected to the extended installation part by a telescopic drive component.

[0010] Preferably, the support extension unit is a multi-stage telescopic structure, which can extend and retract along the width direction of the roadway under the action of the telescopic drive component.

[0011] Preferably, the upper end of the folding support telescopic module is rotatably mounted on the end of the support extension unit, and a folding component is also provided between the folding support module and the support extension unit. The folding component is used to fold the folding support module onto the support extension unit, or to unfold the folding support module.

[0012] Preferably, the folding support module includes multiple folding telescopic components, which are symmetrically distributed at the ends of the support extension unit along the length of the roadway; correspondingly, there are multiple folding components, which are connected one-to-one with the multiple folding telescopic components, so as to fold and retract the folding telescopic components onto the support extension unit, or to unfold the folding telescopic components in parallel.

[0013] Preferably, the support extension unit is provided with a downwardly extending mounting boss, and the mounting boss is provided with a trapezoidal groove with an opening facing downwards; the folding support module is rotatably connected to the bottom surface of the mounting boss, one end of the folding component is rotatably connected to the bottom surface of the trapezoidal groove, and the other end is rotatably connected to the folding support module.

[0014] Preferably, the fixed support telescopic module includes multiple fixed telescopic components, which are arranged side by side between the roof protection device and the self-propelled unit, so as to drive the roof protection device to move along the height direction of the roadway in a synchronous motion.

[0015] Preferably, the self-propelled unit adopts a telescopic expansion structure to adjust the contact width with the bottom surface of the tunnel.

[0016] Preferably, the self-propelled unit is a tracked chassis or a rubber-wheeled chassis with adjustable width.

[0017] Beneficial effects: The roadway roof protection equipment provided in this application embodiment is used for temporary support during roadway intersection construction. In this protection equipment, the support unit is installed on a self-propelled unit and can move within the roadway driven by the self-propelled unit. The support unit can extend and retract along the height and width directions of the roadway to support the roadway roof, effectively ensuring the safety of roadway intersection construction. It fundamentally solves the problems of complex construction procedures, long construction period, and large material consumption that exist in the traditional manual support construction process using special hydraulic supports and overpass protection frames. It completely eliminates the heavy manual labor and construction safety hazards in the traditional construction process, not only improving the construction efficiency of the roadway, but also greatly improving the construction safety of the roadway, ensuring safe and efficient mine production. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. Wherein: Figure 1 This is a structural schematic diagram of a roadway roof protection device provided according to some embodiments of this application; Figure 2 This is a schematic diagram of the retracted state of a self-walking unit according to some embodiments of this application; Figure 3 Figure 2 A schematic diagram of the deployed state of the self-propelled unit; Figure 4 This is a schematic diagram of the retracted state of a support extension unit provided according to some embodiments of this application; Figure 5 Figure 4 The diagram shows the expansion of the support extension unit. Figure 6 This is a schematic diagram of the folded state of a folding support telescopic module provided according to some embodiments of this application; Figure 7 for Figure 6 A schematic diagram of the unfolded state of the folding support telescopic module; Figure 8 This is a schematic diagram illustrating an application of a roadway roof protection device provided according to some embodiments of this application.

[0019] Explanation of reference numerals in the attached figures: 100; Self-propelled unit; 200; Support unit; 201. Top plate protection device; 202. Support extension unit; 203. Fixed support telescopic module; 204. Folding support telescopic module; 211. Extended mounting section; 214. Mounting boss; 224. Folding component; 234. Folding telescopic component. Detailed Implementation

[0020] The present application will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation and not by way of limitation. In fact, those skilled in the art will understand that modifications and variations can be made to the present application without departing from the scope or spirit of the present application. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention should fall within the scope of protection of the embodiments of the present invention.

[0021] In coal mine design and production, spatial intersections between roadways (or chambers) are a common phenomenon. During roadway excavation, to ensure construction safety at roadway intersections, safety measures must be taken in their vicinity to avoid a passive situation during excavation and to prevent accidents.

[0022] Currently, the support at roadway intersections is mainly achieved by installing dedicated hydraulic supports or overpass protection frames in the existing roadways below. However, when installing dedicated hydraulic supports, space constraints limit the placement to two sets, resulting in limited roof protection area and incomplete roof protection. Furthermore, installing two sets of supports significantly reduces the roadway's passability, severely impacting the normal passage of underground vehicles. Additionally, transporting the dedicated hydraulic supports requires a specialized support transport vehicle.

[0023] The erection of overpass protection frames is primarily done manually, involving installation and dismantling. The entire process is cumbersome, complex, and time-consuming. The materials required for these frames mainly include steel trusses, sleepers, and steel beams. A single overpass protection frame requires over 2,000 sleepers, resulting in a large volume of materials, tedious handling, and the need for multiple workers. On one hand, manual erection, installation, and dismantling are physically demanding, inefficient, time-consuming, and costly. On the other hand, the installation and dismantling of overpass protection frames are prone to accidents such as falling debris, injuries from falling sleepers and steel beams, and other hazards. Furthermore, the entire process presents numerous safety challenges, including the safe loading and unloading of specialized modular frames, timber and accessories, auxiliary transportation safety, safety during work at heights, and safety in confined spaces.

[0024] Based on this, this application proposes a roadway roof protection device to replace the special hydraulic supports and overpass protection frames used in roadway support construction, such as... Figures 1 to 8 As shown, in this roadway roof protection equipment, the self-propelled unit 100 adopts a telescopic expansion structure. Specifically, the walking chassis of the self-propelled unit 100 adopts an expandable chassis structure that can telescopically move along the width direction of the chassis. For example, it adopts a tracked chassis structure or a rubber wheel chassis structure with adjustable width, so that it can adapt to roadway dimensions of different widths by adjusting the contact width with the roadway floor, thereby enhancing the transportation performance of the equipment in roadways of different widths.

[0025] In this embodiment, a support unit 200, which can automatically extend and retract, is deployed on the self-propelled unit 100 to support the roadway roof, replacing traditional manual support construction. This completely eliminates the heavy manual labor and construction safety hazards in traditional construction processes, and improves the construction efficiency of the roadway. The support unit 200 can extend and retract along the height and width of the roadway, enabling roof support for roadways with different cross-sectional dimensions.

[0026] In the support unit 200, the roof protection device 201 contacts the roadway roof to provide temporary support. The support extension unit 202, which is slidably fitted into the roof protection device 201, extends and retracts along the roadway width direction, thereby adjusting the roadway support width. Specifically, an extension mounting part 211 is provided on the roof protection device 201 along the roadway width direction. The support extension unit 202 is slidably fitted into the extension mounting part 211 and connected to it via a telescopic drive component. Thus, driven by the telescopic drive component, the support extension unit 202 extends and retracts along the roadway width direction, thereby adjusting the roadway support width.

[0027] In a specific example, in the roof protection device 201, the first support plate directly contacts the roadway roof. A square or rectangular extension mounting part 211 is fixedly connected to the lower surface of the support plate. Correspondingly, on the support extension unit 202, a square or rectangular telescopic extension part is slidably fitted onto the extension mounting part 211 of the roof protection device 201. By telescopically moving the telescopic extension part within the extension mounting part 211 along the roadway width direction, the second support plate in the support extension unit 202 moves, thereby adjusting the roadway support width. The second support plate is fixedly connected to the end of the telescopic extension part extending out of the extension mounting part 211 and is flush with the top surface of the first support plate.

[0028] A telescopic extension section is arranged between the extension mounting section 211 with a telescopic drive component. One end of the drive component is connected to the extension mounting section 211, and the other end is connected to the telescopic extension section. The telescopic movement of the drive component causes the telescopic extension section to telescopically move within the extension mounting section 211. In a specific application scenario, the telescopic drive component is a hydraulic cylinder. One end of the hydraulic cylinder is connected to the extension mounting section 211 of the square or rectangular profile, and the other end is connected to the telescopic extension section of the square or rectangular profile. The movement of the hydraulic cylinder causes the telescopic extension section to telescopically move within the extension mounting section 211. Here, the installation of the hydraulic cylinder within the extension mounting section 211 and the telescopic extension section mainly adopts a concealed installation method, that is, the hydraulic cylinder is installed within the square or rectangular frame of the extension mounting section 211 and the telescopic extension section.

[0029] In another specific example, the support extension unit 202 adopts a multi-stage telescopic structure, that is, a telescopic connecting part is also provided between the extension installation part 211 and the telescopic extension part. In other words, the telescopic connecting part is slidably fitted into the square or rectangular structure of the extension installation part 211, and the telescopic extension part is slidably fitted into the telescopic connecting part. That is, the extension installation part 211, the telescopic connecting part, and the telescopic extension part are slidably fitted in sequence from the outside to the inside, thereby effectively increasing the adjustment stroke of the support extension unit 202 in the opposite direction of the roadway width, so that the support extension unit 202 can adapt to the roadway support needs of a larger size range.

[0030] When providing temporary support for the roadway, the fixed support telescopic module 203, located on the self-propelled unit 100, drives the roof protection device 201 to move along the roadway height direction, bringing the roof protection device 201 into contact with the roadway roof to support it. Specifically, the fixed support telescopic module 203 includes multiple fixed telescopic components, which are evenly distributed side-by-side between the roof protection device 201 and the self-propelled unit 100 to synchronously drive the roof protection device 201 to move along the roadway height direction.

[0031] In a specific application scenario, the telescopic extension part of the roof protection device 201 is mounted on the self-propelled unit 100 via multiple lifting cylinders. When the roadway is supported, the multiple lifting cylinders rise synchronously, lifting the telescopic extension part until the first support plate of the roof protection device 201 abuts against the roadway roof, thereby achieving temporary support for the roadway roof.

[0032] When the roof protection device 201 moves upward under the drive of the fixed support telescopic module 203, the support extension unit 202 can move synchronously or asynchronously along the width direction of the roadway under the action of the telescopic drive component. When the support extension unit 202 extends along the width direction of the roadway to the predetermined position, the folded support telescopic module 204 installed on the support extension unit 202 and unfolded when the support extension unit 202 is not extended, and moves along the height direction of the roadway to support the support extension unit 202 along the height direction. Together with the fixed support telescopic module 203, the support extension unit 202 and the roof protection device 201 support the roof of the roadway.

[0033] In a specific example, the folding support telescopic module 204 is installed on the telescopic extension part of the support extension unit 202. When the support extension unit 202 does not need to be deployed, the folding support telescopic module 204 folds and retracts onto the support extension unit 202; when the support extension unit 202 is deployed to provide temporary support for the roadway, the folding support telescopic module 204 unfolds and moves along the height direction of the roadway, forming a support structure together with the fixed support telescopic module 203, and supporting the roadway roof through the support extension unit 202 and the roof protection device 201.

[0034] In a specific application scenario, the upper end of the folding support telescopic module 204 is rotatably mounted on the end of the support extension unit 202, and a folding component 224 is provided between the folding support telescopic module 204 and the support extension unit 202. The folding support module 204 is folded and retracted onto the support extension unit 202 via the folding component 224, or the folding support module is unfolded. Specifically, the bottom surface of the telescopic extension part of the support extension unit 202 is provided with a downwardly extending mounting boss 214, and the mounting boss 214 is provided with a trapezoidal groove with an opening facing downwards. The folding support module is rotatably connected to the bottom surface of the mounting boss 214, one end of the folding component 224 is rotatably connected to the bottom surface of the trapezoidal groove, and the other end is rotatably connected to the folding support module. That is, multiple (two) folding telescopic pieces 234 are rotatably connected to the lower end of the trapezoidal groove (or U-shaped opening) of the mounting boss 214 and symmetrically distributed along the length of the tunnel. They are folded (inward) or unfolded (outward) relative to each other at the trapezoidal groove (or U-shaped opening) of the mounting boss 214 by the folding component 224 (folding cylinder).

[0035] Multiple (two) symmetrically arranged folding telescopic components 234 are folded or unfolded by multiple (two) symmetrically arranged folding cylinders. That is, multiple folding telescopic components 234 are connected one-to-one with multiple folding components 224 (folding cylinders) so that the folding telescopic components 234 can be folded and retracted onto the support extension unit 202 by the folding components 224, or the folding telescopic components 234 can be unfolded parallel (vertically). One end of the folding cylinder is rotatably connected to the bottom surface of the trapezoidal groove (or U-shaped opening) of the mounting boss 214, and the other end is rotatably connected to the folding telescopic component 234; the extension and retraction of the folding cylinder causes the folding telescopic component 234 to unfold or fold.

[0036] In another specific application scenario, the folding telescopic component 234 adopts a telescopic arm structure, that is, the tubular components that slide together are driven by the telescopic cylinder to move relatively in the height direction of the roadway, so that the folding telescopic component 234 can form a supporting force together with the fixed support telescopic module 203, and support the roadway roof through the support extension unit 202 and the roof protection device 201.

[0037] Here, the support extension unit 202, which moves telescopically along the width of the roadway, can be symmetrically arranged on both sides of the roof protection device 201. According to the support requirements in the width of the roadway, the telescopic drive component drives the support extension unit 202 symmetrically arranged on both sides of the roof protection device 201 to extend or retract synchronously or asynchronously. Similarly, multiple folding support telescopic modules 204 can also be arranged in parallel along the length of the roadway. According to the support requirements in the length of the roadway, multiple folding support telescopic modules 204 can be selectively unfolded or folded to achieve temporary support in the length of the roadway.

[0038] In this embodiment, the support unit 200 can extend and retract along the height and width of the roadway to support the roadway roof, effectively ensuring construction safety at roadway intersections. This fundamentally solves the problems of complex construction procedures, long construction periods, and large material quantities associated with traditional manual support construction at roadway intersections using specialized hydraulic supports and overpass protection frames. It completely eliminates the heavy manual labor and construction safety hazards in traditional construction processes, not only improving roadway construction efficiency but also greatly enhancing roadway construction safety, thus ensuring safe and efficient mine production.

[0039] The self-propelled unit 100, which can be extended along the width of the roadway, enables rapid movement, relocation, and temporary support within roadways of different cross-sectional dimensions, thereby further improving roadway construction efficiency, effectively enhancing the safety and automation level of roof protection during roadway excavation, reducing the labor intensity of workers, and further improving the safety and efficiency of roadway construction, thus better ensuring safe and efficient mine production.

[0040] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tunnel roof protection device, characterized in that, The protective equipment, used for temporary support during construction at tunnel intersections, includes: Self-propelled unit; A support unit is installed on the self-propelled unit and can move in the roadway under the drive of the self-propelled unit. The support unit can extend and retract along the height and width of the roadway to support the roadway roof.

2. The roadway roof protection equipment according to claim 1, characterized in that, The support unit includes: A roof protection device is used to contact the roof of the roadway to provide temporary support for the roof. The support extension unit is slidably fitted onto the roof protection device and can extend and retract along the width of the tunnel. A fixed support telescopic module is located on the self-propelled unit and is used to drive the roof protection device to move along the height direction of the roadway; The folding support telescopic module is installed on the support extension unit and can be folded and retracted on the support extension unit, or unfolded and telescopically moved along the height direction of the roadway, so as to support the roadway roof together with the fixed support telescopic module through the support extension unit and the roof protection device.

3. The roadway roof protection equipment according to claim 2, characterized in that, The roof protection device is provided with an extended installation part along the width direction of the roadway; The support extension unit is slidably fitted onto the extension mounting part and is connected to the extension mounting part via a telescopic drive component.

4. The roadway roof protection equipment according to claim 3, characterized in that, The support extension unit is a multi-stage telescopic structure, which can extend and retract along the width direction of the roadway under the action of the telescopic drive component.

5. The roadway roof protection equipment according to claim 2, characterized in that, The upper end of the folding support telescopic module is rotatably mounted on the end of the support extension unit, and a folding component is also provided between the folding support module and the support extension unit. The folding component is used to fold the folding support module onto the support extension unit, or to unfold the folding support module.

6. The roadway roof protection equipment according to claim 5, characterized in that, The folding support module includes multiple folding telescopic components, which are symmetrically distributed at the ends of the support extension unit along the length of the roadway. Correspondingly, There are multiple folding components, and each of the multiple folding components is connected to a corresponding multiple folding telescopic member to fold and retract the folding telescopic member onto the support extension unit, or to unfold the folding telescopic member in parallel.

7. The roadway roof protection equipment according to claim 5, characterized in that, The support extension unit is provided with a downwardly extending mounting boss, and the mounting boss is provided with a trapezoidal groove with an opening facing downward. The folding support module is rotatably connected to the bottom surface of the mounting boss, one end of the folding component is rotatably connected to the bottom surface of the trapezoidal groove, and the other end is rotatably connected to the folding support module.

8. The roadway roof protection equipment according to any one of claims 2-7, characterized in that, The fixed support telescopic module includes multiple fixed telescopic components, which are arranged side by side between the roof protection device and the self-propelled unit, so as to drive the roof protection device to move along the height direction of the roadway in a synchronous motion.

9. The roadway roof protection equipment according to claim 1, characterized in that, The self-propelled unit adopts a telescopic expansion structure to adjust the contact width with the bottom surface of the tunnel.

10. The roadway roof protection device according to claim 9, characterized in that, The self-propelled unit is a tracked chassis or a rubber-wheeled chassis with adjustable width.

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