Roof supporting device for soft rock stratum of roadway

Abstract

The invention relates to the technical field of roof supporting devices, one embodiment of the invention provides a roadway soft rock stratum roof supporting device which comprises first electric cylinders, first side plates, second side plates and a forward moving assembly, the output ends of the first electric cylinders are fixedly installed at the bottom end of a roof, the first electric cylinders are installed on a bottom plate, and the second side plates are installed on the bottom plate; the two first side plates are arranged on the top plate through the two pushing assemblies correspondingly, the pushing assemblies are used for driving the two first side plates to move oppositely so that adjustment can be conducted according to the widths of different roadways, the two second side plates are arranged in the two first side plates correspondingly, and the two forward moving assemblies are arranged on the two lifting mechanisms correspondingly. The two second side plates are arranged on the two forward moving assemblies correspondingly. By means of the technical scheme, the technical problem that in the prior art, when roadways with different heights or widths are supported, labor and time are wasted due to the fact that manual splicing or supporting device adjusting is needed is solved.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the technical field of roof support devices, and in particular, to a roof support device for weak rock formations in a tunnel. Background Art

[0002] The tunnel rock stratum refers to the rock layer around the tunnel. Its characteristics and stability have an important impact on the design, construction and maintenance of the tunnel. In the mining of coal or metal mines, it is necessary to open a tunnel in the rock stratum to achieve the purpose of mining coal or metal mines. After the tunnel is opened in the rock stratum, in order to ensure the safety of construction workers, support devices are usually used to support the top and sides of the tunnel, so that the tunnel is stable and prevent debris from falling and injuring construction workers.

[0003] Since the internal space of mining tunnels varies in size, when using roof support devices to protect tunnels, it is necessary to adjust the length and height of the device so that both sides and the top of the device can fit the tunnel, thereby making the protection effect better. During adjustment, some support frames adopt a telescopic structure so that the width of the support frame can be adjusted according to the width of the tunnel, and by setting positioning pins or threaded holes in the sleeve, after the adjustment is completed, use bolts to fix the threads, or use hinges or pins to splice and install multiple sections of the support frame.

[0004] However, the above methods all require manual splicing or adjustment by construction workers, which is not only laborious but also takes a long time when splicing in the tunnel, and also increases the danger for construction workers in the tunnel. Summary of the Invention

[0005] To overcome the above-mentioned defects, an embodiment of the present disclosure provides a tunnel soft rock stratum roof support device, which is used to solve the technical problem in the prior art that when supporting tunnels of different heights or widths, the support device needs to be manually spliced or adjusted, which is laborious and time-consuming.

[0006] According to one aspect, at least one embodiment of the present disclosure provides a tunnel soft rock formation roof support device, including a top plate and an arc top cover, the arc top cover is fixedly mounted on the top of the top plate, the top of the top plate is provided with two through grooves of the same area, and also includes an electric cylinder 1, a side plate 1, a side plate 2 and a forward moving assembly, the electric cylinder 1 is provided with several, the output ends of the several electric cylinder 1s are all fixedly mounted on the bottom end of the top plate, and the electric cylinder 1 is installed on the bottom plate, the side plate 1 is provided with two, the two side plates 1 are respectively arranged on the top plate through two pushing assemblies, the pushing assembly is used to drive the two side plates 1 to move in opposite directions, and then adjust according to the width of different tunnels, the side plate 2 is provided with two, the two side plates 2 are respectively arranged inside the two side plates 1, the forward moving assemblies are provided with two, the two forward moving assemblies are respectively arranged on two lifting mechanisms, and the two side plates 2 are respectively arranged on the two forward moving assemblies.

[0007] Furthermore, the pushing assembly includes a driving rod, a pushing plate and a driving assembly, two driving rods are provided, and the two driving rods are fixedly installed in one of the through grooves of the top plate. The pushing plate is slidably installed on the two driving rods, and the bottom end of the pushing plate is fixedly connected to the top end of the side plate through a connecting rod, and the driving rod assembly is provided at the top end of the top plate.

[0008] Furthermore, the driving assembly includes a rack, a driving motor and a driving gear, the rack is fixedly mounted on the top of the push plate, the driving motor is mounted on the top of the top plate, the driving gear is fixedly connected to the output end of the driving motor through a transmission shaft, and the driving gear is meshed with the rack.

[0009] Furthermore, the forward moving assembly includes a sliding rod, a forward moving rod and a fitting assembly. There are two sliding rods, and both sliding rods are arranged on the lifting mechanism. A sliding groove is provided at the top of the sliding rod. There are two forward moving rods, and the two forward moving rods are respectively slidably installed in the sliding grooves at the top of the two sliding rods. The fitting assembly is arranged on the sliding rod.

[0010] Furthermore, the fitting assembly includes a mounting plate, a connecting plate and an electric cylinder 2, the mounting plate is fixedly installed between the two sliding rods, a connecting plate is fixedly installed between the two forward rods, two electric cylinders 2 are provided, both of the two electric cylinders 2 are installed on the mounting plate, and the output ends of the two electric cylinders 2 are fixedly connected to the side of the connecting plate.

[0011] In order to drive the side panel 2 to move up and down in the side panel 1, further, two vertical through grooves are provided on the inner side wall of the side panel 1, and the two forward moving rods are respectively located in the two vertical through grooves of the side panel 1.

[0012] In order to prevent the side panel 1 and the side panel 2 from being staggered and separated when the side panel 1 is pushed to fit the side of the tunnel, further, a cavity is provided inside the side panel 1, and when the side panel 2 is located in the cavity of the side panel 1, the side surface of the side panel 1 and the side surface of the side panel 2 are located in the same plane.

[0013] In order to prevent the two racks from contacting and colliding when moving relative to each other, the two racks are further arranged in a staggered manner relative to each other at the top of the top plate.

[0014] The beneficial effects of the embodiments of the present disclosure are: 1. In the present invention, when supporting a tunnel, the device is placed in the tunnel, and the top plate and the arc top cover can be driven upward by an electric cylinder, and then the height of the top plate and the arc top cover can be adjusted according to the height of the tunnel, so that the arc top cover moves to fit the inner top of the tunnel for support.

[0015] 2. In the present disclosure, when supporting the side wall of the alley, the side panel one and the side panel two can be driven to move by pushing the assembly, and then the positions of the side panel one and the side panel two can be moved according to the width of the alley so that they fit the side wall of the alley, and the position of the side panel two can be further adjusted according to the forward moving assembly. If the alley is wider, the position of the side panel two can be extended to fit the side of the alley.

[0016] In summary, the device can be adjusted according to the height and width of the tunnel through the mutual cooperation between the electric cylinder 1, side plate 1, side plate 2 and the forward moving component, thereby supporting the tunnel. Compared with the support frame of the manual adjustment device, it is not only more convenient and labor-saving, but also more efficient and reduces the risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly describes the drawings required for use in describing the embodiments of the present disclosure. Obviously, the drawings described below are merely some exemplary embodiments of the present disclosure. Those skilled in the art can, without inventive effort, derive other drawings based on the content of the exemplary embodiments of the present disclosure and these drawings.

[0018] Figure 1 It is a schematic structural diagram of the present invention as a whole; Figure 2 This is a schematic diagram of the structure of the top plate, side plate 1 and push assembly of the present invention; Figure 3 This is a schematic diagram of the structure of the lifting mechanism, the forward moving assembly and the second side plate of the present invention; Figure 4 This is a schematic diagram of the structure of the top plate, electric cylinder 1, bottom plate and lifting mechanism of the present invention; Figure 5 This is a schematic diagram of the structure of the arc top cover and top plate; Figure 6 This is a schematic diagram of the structure of the side panel 1 and the side panel 2 of the present invention; Figure 7 It is a structural schematic diagram of the side panel 1 of the present invention.

[0019] In the figure: 1. Top plate; 2. Arc top cover; 3. Electric cylinder 1; 4. Bottom plate; 5. Side plate 1; 6. Side plate 2; 7. Drive rod; 8. Push plate; 9. Rack; 10. Drive motor; 11. Drive gear; 12. Sliding rod; 13. Forward rod; 14. Mounting plate; 15. Connecting plate; 16. Electric cylinder 2; 17. Lifting mechanism. DETAILED DESCRIPTION

[0020] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than to limit the present disclosure.

[0021] To simplify the drawings, only the parts relevant to the disclosure are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0022] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on the specific circumstances.

[0023] In the present disclosure, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] In the description of this embodiment, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present disclosure.

[0025] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] like Figures 1 to 7 As shown, it shows a tunnel soft rock formation roof support device in one embodiment of the present disclosure, including a roof 1 and an arc top cover 2, the arc top cover 2 is fixedly mounted on the top of the roof 1, and the top of the roof 1 is provided with two through grooves of the same area, and also includes an electric cylinder 3, a side plate 5, a side plate 2 6 and a forward moving component, a plurality of electric cylinders 3 are provided, and the output ends of the plurality of electric cylinders 3 are all fixedly mounted on the bottom end of the roof 1, and the electric cylinder 3 is installed on the bottom plate 4, two side plates 5 are provided, and the two side plates 5 are respectively provided on the roof 1 through two pushing components, and the pushing components are used to drive the two side plates 5 to move in opposite directions, and then adjust according to the width of different tunnels, two side plates 2 6 are provided, and the two side plates 2 6 are respectively provided inside the two side plates 5, two forward moving components are provided, and the two forward moving components are respectively provided on the two lifting mechanisms 17, and the two side plates 2 6 are respectively provided on the two forward moving components.

[0027] like Figure 1 and Figure 4As shown, when supporting the tunnel, the device is first moved into the tunnel by a tool, and then the bottom plate 4 is brought into contact with the ground, and then the electric cylinder 3 is started. The output end of the electric cylinder 3 drives the top plate 1 and the arc top cover 2 to move upward, and the arc top cover 2 is moved upward until it fits against the inner top wall of the tunnel to support it, and then the movement stops. The components installed on the top plate 1 are all located below the arc top cover 2, so the arc top cover 2 can protect the components on the top plate 1. If rocks fall, they can be blocked by the arc top cover 2. It should be added that, as shown in FIG. Figure 5 As shown, arc baffles are detachably installed on both sides of the arc top cover 2 by bolts. The arc baffles can be installed during work to block the two sides of the arc top cover 2. After the work is completed, they can be removed to disassemble or repair the components on the top plate 1.

[0028] like Figure 2 and Figure 6 As shown, when supporting both sides of the tunnel, the side plate 1 5 and the side plate 2 6 are moved by the pushing assembly, and the pushing assembly includes a driving rod 7, a pushing plate 8 and a driving assembly. Two driving rods 7 are provided, and the two driving rods 7 are fixedly mounted in one of the through grooves of the top plate 1. The pushing plate 8 is slidably mounted on the two driving rods 7, and the bottom end of the pushing plate 8 is fixedly connected to the top of the side plate 1 5 through a connecting rod. The driving rod 7 assembly is arranged at the top of the top plate 1, and the driving assembly includes a rack 9, a driving motor 10 and a driving gear 11. The rack 9 is fixedly mounted on the top of the pushing plate 8, and the driving motor 10 is mounted on the top of the top plate 1. The driving gear 11 is fixedly connected to the output end of the driving motor 10 through a transmission shaft, and the driving gear 11 is meshed with the rack 9.

[0029] Specifically, the drive motor 10 is started, and the output end of the drive motor 10 drives the drive gear 11 to rotate, and the drive gear 11 drives the rack 9 to move, and the rack 9 drives the sliding plate to slide forward on the drive rod 7, thereby driving the side panel 1 5 and the side panel 2 6 to move forward to fit the side of the tunnel. Because a cavity is provided inside the side panel 1 5, and when the side panel 2 6 is located in the cavity of the side panel 1 5, the side of the side panel 1 5 and the side of the side panel 2 6 are located in the same plane, then when moving and fitting, the side panel 1 5 and the side panel 2 6 can fit the side of the tunnel at the same time, and the two racks 9 are relatively staggered at the top of the top plate 1. When the two racks 9 move relative to each other, they can move in an staggered manner without blocking each other.

[0030] like Figure 3 and Figure 7As shown, if the width of the lane is large, after the sliding plate slides to the extreme side end of the sliding rod 12, when the side plate 1 5 and the side plate 2 6 are still difficult to contact the side of the lane, the side plate 2 6 can be driven forward by the forward moving assembly to fit the side of the lane. The forward moving assembly includes two sliding rods 12, a forward moving rod 13 and a fitting assembly. The sliding rod 12 is provided with two, and the two sliding rods 12 are both arranged on the lifting mechanism 17. The top of the sliding rod 12 is provided with a sliding groove, and the forward moving rod 13 is provided with two. The two forward rods 13 are respectively slidably mounted in the sliding grooves at the top ends of the two sliding rods 12, and the fitting assembly is arranged on the sliding rod 12. The fitting assembly includes a mounting plate 14, a connecting plate 15 and an electric cylinder 2 16. The mounting plate 14 is fixedly mounted between the two sliding rods 12, and a connecting plate 15 is fixedly mounted between the two forward rods 13. There are two electric cylinders 2 16, and the two electric cylinders 2 16 are both mounted on the mounting plate 14, and the output ends of the two electric cylinders 2 16 are fixedly connected to the side faces of the connecting plate 15.

[0031] Specifically, the electric cylinder 2 16 is started, and the output end of the electric cylinder 2 16 drives the connecting plate 15 to move, and the connecting plate 15 drives the two slide grooves at the top end of the sliding rod 12 to move forward, thereby driving the side plate 2 6 to separate from the side plate 1 5 and move forward to fit the side of the lane. It should be added that the lifting mechanism 17 is a well-known technology. The lifting mechanism 17 includes a reciprocating screw, which is rotatably installed between the bottom plate 4 and the top plate 1, and an active motor is installed on the top plate 1. The output end of the active motor is coaxially connected to the reciprocating screw, and the reciprocating screw is equipped with a crescent slider that cooperates with the reciprocating screw thread, and the crescent slider A reciprocating sleeve is provided on the outer side, and a sliding rod is fixedly installed between the bottom plate 4 and the top plate 1, and a lifting block is slidably installed on the sliding rod. Two sliding rods 12 are respectively fixedly installed on the sides of the lifting block and the crescent slider. When the top plate 1 moves down, the side plate 1 5 will move down, and the active motor can be started at the same time, thereby driving the side plate 2 6 to move down synchronously, and the side plate 1 5 is set to be L-shaped. When the side top plate 1 moves forward, the L-shaped setting can block the rocks falling from the top, and when the bottom end of the side plate 1 5 rises to a point where it does not touch the ground, the sliding rod 12 can be driven down by the lifting mechanism 17, thereby driving the side plate 2 6 to move down and touch the ground.

[0032] Working principle: When supporting the tunnel, first move the device into the tunnel through the tool, then start the electric cylinder 13 according to the height of the tunnel, and the output end of the electric cylinder 13 drives the top plate 1 and the arc top cover 2 to move up to fit the top of the tunnel, and at this time, synchronously drives the side plate 15 to move up, and synchronously drives the side plate 2 6 to move up through the lifting mechanism 17. After the fitting is completed, start the drive motor 10, and the output end of the drive motor 10 drives the drive gear 11 to rotate, and the drive gear 11 drives the rack 9 to move, and the rack 9 drives the sliding plate to slide forward on the sliding rod 12, and then Drive side panel 1 5 and side panel 2 6 forward to fit the side of the lane. When side panel 1 5 moves forward, electric cylinder 2 16 is started synchronously. The output end of electric cylinder 2 16 drives connecting plate 15 and forward rod 13 to move forward, and then forward rod 13 slides in the top groove of sliding rod 12, so that side panel 2 6 moves synchronously with side panel 1 5, and then fits the side of the lane. When the sliding plate slides to the outermost end of sliding rod 12 and side panel 1 5 does not touch the side of the lane, electric cylinder 2 16 can be continued to be started to push side panel 2 6 to separate from side panel 1 5 and continue to move forward, so as to fit the side of the lane.

[0033] It should be added that a screw protection cover (screw cover) is detachably installed on the outside of the reciprocating screw, so as to provide external protection and dustproofing to the reciprocating screw when it is working, and the screw protection cover is an existing component.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not limiting. Although the present disclosure has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present disclosure, and all of these should be included in the scope of the claims of the present disclosure.

Claims

1. A tunnel soft rock stratum roof support device, comprising a roof (1) and an arc top cover (2), wherein the arc top cover (2) is fixedly mounted on the top of the roof (1), characterized in that: The top of the top plate (1) is provided with two through slots of the same area, and further comprises: An electric cylinder (3), wherein the electric cylinder (3) is provided with a plurality of them, and the output ends of the plurality of electric cylinders (3) are fixedly mounted on the bottom end of the top plate (1), and the electric cylinder (3) is mounted on the bottom plate (4); Side plate one (5), two side plates one (5) are provided, and the two side plates one (5) are respectively provided on the top plate (1) through two pushing components, and the pushing components are used to drive the two side plates one (5) to move in opposite directions, thereby adjusting according to the width of different lanes; Side panel 2 (6), two side panels 2 (6) are provided, and the two side panels 2 (6) are respectively provided inside the two side panels 1 (5); There are two forward moving assemblies, and the two forward moving assemblies are respectively arranged on two lifting mechanisms (17), and the two side panels (6) are respectively arranged on the two forward moving assemblies.

2. A tunnel soft rock stratum roof support device according to claim 1, characterized in that: The pushing component includes: A driving rod (7), wherein two driving rods (7) are provided, and both driving rods (7) are fixedly mounted in one of the through slots of the top plate (1); A push plate (8), wherein the push plate (8) is slidably mounted on the two driving rods (7), and the bottom end of the push plate (8) is fixedly connected to the top end of the side plate (5) via a connecting rod; A driving assembly, wherein the driving rod (7) assembly is arranged at the top end of the top plate (1).

3. A tunnel soft rock stratum roof support device according to claim 2, characterized in that: The drive assembly includes: A rack (9), the rack (9) being fixedly mounted on the top end of the push plate (8); A drive motor (10), the drive motor (10) being mounted on the top of the top plate (1); A driving gear (11), wherein the driving gear (11) is fixedly connected to the output end of the driving motor (10) via a transmission shaft, and the driving gear (11) is meshed with the rack (9).

4. A tunnel soft rock stratum roof support device according to claim 3, characterized in that: The forward moving assembly comprises: Sliding rods (12), two sliding rods (12) are provided, both of the sliding rods (12) are provided on the lifting mechanism (17), and a sliding groove is provided at the top end of the sliding rod (12); A forward moving rod (13), wherein two forward moving rods (13) are provided, and the two forward moving rods (13) are respectively slidably mounted in the sliding grooves at the top ends of the two sliding rods (12); A fitting component is provided on the sliding rod (12).

5. A tunnel soft rock stratum roof support device according to claim 4, characterized in that: The fitting assembly includes: a mounting plate (14), the mounting plate (14) being fixedly mounted between the two sliding rods (12); A connecting plate (15) is fixedly mounted between the two forward moving rods (13); Electric cylinder 2 (16), two electric cylinders 2 (16) are provided, both of the two electric cylinders 2 (16) are mounted on the mounting plate (14), and the output ends of the two electric cylinders 2 (16) are fixedly connected to the side of the connecting plate (15).

6. A tunnel soft rock stratum roof support device according to claim 5, characterized in that: The inner side wall of the side plate 1 (5) is provided with two vertical through slots, and the two forward moving rods (13) are respectively located in the two vertical through slots of the side plate 1 (5).

7. A tunnel soft rock stratum roof support device according to claim 6, characterized in that: A cavity is provided inside the side panel one (5), and when the side panel two (6) is located in the cavity of the side panel one (5), the side surface of the side panel one (5) and the side surface of the side panel two (6) are located in the same plane.

8. A tunnel soft rock stratum roof support device according to claim 7, characterized in that: The two racks (9) are placed in a staggered manner relative to each other on the top of the top plate (1).

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