A stabilizing device for preventing a high-angle rock tunnel boring machine from sliding down

Abstract

The present application provides a stabilizing device for preventing a high-angle rock tunnel boring machine from sliding down, comprising a connecting plate; a hydraulic cylinder is installed at the lower center of the connecting plate, the output end of the hydraulic cylinder is connected to a support plate, and telescopic tubes and telescopic rods are respectively installed at the four corners of the lower part of the connecting plate; sliding cavities are opened in both ends of the support plate, and an extension auxiliary plate group is movable inside the sliding cavity, the extension auxiliary plate group comprises a first folding plate and a second folding plate, and a plurality of the insertion nails are hexagonal conical nails; it also includes a positioning mechanism, the positioning mechanism comprises a positioning rod, one end of the positioning rod is fixedly connected to the positioning plate; the present invention realizes height adjustment through a hydraulic cylinder, and is provided with a telescopic tube and a telescopic rod to achieve stability, and is provided with insertion nails to achieve stable fixation, and is provided with an extension auxiliary plate group, so as to increase the support area of ​​the support plate, improve the support stability, and prevent the extension auxiliary plate group from moving and folding and retracting.

Description

Technical Field

[0001] The present application relates to the technical field of stabilization of tunnel boring machines, and in particular to a stabilization device for preventing a tunnel boring machine with a large inclination angle from sliding down. Background Art

[0002] The roadheader is a large-scale mechanical equipment used for tunneling in coal mines and non-coal mines. When the roadheader is working or traveling on a steep slope, the whole machine is prone to slippage. And at a large slope, the effective pressure of the equipment on the ground is the component of gravity, so its adhesion will decrease as the angle increases. The flexibility of the roadheader's movement depends on the driving force and the driving resistance. Therefore, when the downhill slope of the roadway is large and exceeds the maximum climbing capacity of the roadheader, it is difficult for the roadheader to retreat and cannot be retreated to the bottom, which easily causes the roadway height to be insufficient. At the same time, due to the influence of the large inclination angle, the cutting force of the roadheader's cutting head is insufficient, breaking rocks is difficult, and it wears quickly. Summary of the invention

[0003] In order to make up for the above shortcomings, this application provides a stabilizing device to prevent the high-angle rock tunnel boring machine from sliding down, aiming to improve the whole machine slipping phenomenon that occurs when the tunnel boring machine is working or traveling on a steep tunnel. When the tunnel slope is large and exceeds the maximum climbing capacity of the tunnel boring machine, it is difficult for the tunnel boring machine to retreat and cannot retreat to the bottom, which easily causes the tunnel height to be insufficient. At the same time, due to the influence of the large inclination angle, the cutting force of the tunnel boring machine cutting head is insufficient, breaking rocks is difficult, and it wears quickly.

[0004] The embodiment of the present application provides a stabilizing device for preventing a high-angle rock tunnel boring machine from sliding down, comprising a connecting plate;

[0005] A hydraulic cylinder is fixedly installed at the center of the lower part of the connecting plate, and the output end of the hydraulic cylinder is fixedly connected to the supporting plate. Telescopic cylinders are fixedly installed at the four corners of the lower part of the connecting plate, and a telescopic rod is movably installed inside the telescopic cylinder. The bottom end of the telescopic rod is fixedly connected to the four corners of the supporting plate.

[0006] Sliding cavities are provided in both ends of the support plate, and an epitaxial auxiliary plate group is movably provided inside the sliding cavity. The epitaxial auxiliary plate group adopts a folding combination design, and the epitaxial auxiliary plate group includes a first folding plate and a second folding plate. The length of the second folding plate is smaller than that of the first folding plate. A plurality of insertion pins are arranged in a matrix at the bottom end of the support plate, and the plurality of insertion pins are all hexagonal tapered pins;

[0007] It also includes a positioning mechanism, which includes a positioning rod, one end of which is fixedly connected to a positioning plate, a first connecting ring is welded to one side of the positioning plate, a second connecting ring is welded to the support plate, and the first connecting ring and the second connecting ring are connected by a connecting chain.

[0008] In the above implementation process, when the tunnel boring machine is working in a downhill tunnel with a large inclination angle, it reaches the designated working position, lowers the hydraulic support legs, and props up the tunnel boring machine as a whole, which can effectively prevent it from slipping; by adjusting the height of the four front and rear hydraulic support legs, the tunnel boring machine is adjusted to a horizontal state, which is most conducive to the tunnel boring machine cutting. The cutting head fully guarantees that the tunnel has a sufficient height after excavation, and the tunnel boring machine cutting head has sufficient cutting force, eliminating the influence of the large inclination angle on the operation of the tunnel boring machine, that is, the height adjustment is achieved by the hydraulic cylinder, and a telescopic cylinder and a telescopic rod are provided to achieve stability, and an insertion nail is provided to achieve stable fixation, and an extended auxiliary plate group is provided to increase the support area of ​​the support plate, improve the support stability, and can achieve stable positioning, preventing the extended auxiliary plate group from moving and folding.

[0009] In a specific implementation manner, slide grooves are respectively provided on both sides of the support plate, and slide bars are respectively fixedly provided on both sides of the extension auxiliary plate group, and the slide bars slide inside the slide grooves.

[0010] In the above implementation process, the setting of the slide groove and the slide bar can enable the extension auxiliary plate group to be stably and movably connected inside the support plate, so as to facilitate the unfolding and folding.

[0011] In a specific embodiment, the bottom ends of the slide bars are welded to the two sides of the first folding plate, the second folding plate is movably located between the slide bars on both sides, and the slide bars and the second folding plate are located on the same horizontal plane.

[0012] In the above implementation process, the connection between the slide bar and the first folding plate can not only maintain a stable sliding connection with the support plate, but also make it easier for the second folding plate to rotate and unfold.

[0013] In a specific embodiment, a push-pull handle is welded to a corner of the upper end of the first folding plate at both ends, and movable grooves are opened on the sides of both ends of the upper part of the support plate, and the push-pull handle slides inside the movable grooves.

[0014] In the above implementation process, the setting of the push-pull handle can realize the push-pull adjustment of the first folding plate to facilitate unfolding.

[0015] In a specific embodiment, one end of the first folding plate and one end of the second folding plate are rotatably connected via a hinge mechanism.

[0016] In the above implementation process, the setting of the hinge mechanism can enable the first folding plate and the second folding plate to rotate and open, so as to increase the supporting area.

[0017] In a specific embodiment, the hinge mechanism includes mounting grooves provided at the ends of the first folding plate and the second folding plate, and hinges are fixedly installed inside the mounting grooves by rivets.

[0018] In the above implementation process, the setting of the mounting groove can reduce the volume of the hinge mechanism, which causes the first folding plate and the second folding plate to be unable to fit the ground.

[0019] In a specific embodiment, the positioning mechanism further includes an insertion hole provided on one side of the first folding plate, the slide bar and the support plate, and the positioning rod is movably inserted into the interior of the insertion hole.

[0020] In the above implementation process, the setting of the insertion hole makes it easier for the positioning rod to effectively position and fix the first folding plate.

[0021] In a specific embodiment, the rotating connection ends of the first folding plate and the second folding plate in the extension auxiliary plate group at both ends are also provided with a group of positioning mechanisms for positioning and installation.

[0022] In the above implementation process, the first folding plate and the second folding plate are also connected and positioned by a positioning mechanism to prevent the first folding plate and the second folding plate from being unable to be fixedly supported when supporting the ground, causing them to rotate and retract.

[0023] In a specific implementation manner, a mounting plate is welded to the output end of the hydraulic cylinder, and the four corners of the mounting plate are fixedly connected to the support plate by fixing screws.

[0024] In the above implementation process, the setting of the mounting plate facilitates the stable fixed connection of the support plate.

[0025] In a specific implementation manner, positioning bolts are respectively threadedly connected at the four corners of the connecting plate, and the connecting plate is fixedly connected to the lower part of the tunnel boring machine through the four positioning bolts.

[0026] In the above implementation process, the setting of the positioning bolts facilitates the fixed installation of the equipment and the tunnel boring machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the main structure provided by the implementation method of the present application;

[0029] Figure 2 A bottom-up structural schematic diagram provided for an implementation method of the present application;

[0030] Figure 3 A schematic diagram of the support plate structure provided for an embodiment of the present application;

[0031] Figure 4 A schematic diagram of the top view of the epitaxial auxiliary plate assembly provided in an embodiment of the present application;

[0032] Figure 5 A schematic diagram of the side structure of an epitaxial auxiliary plate assembly provided in an embodiment of the present application;

[0033] Figure 6 This is a schematic diagram of the end structure of the epitaxial auxiliary plate group provided in an embodiment of the present application.

[0034] In the figure: 1. connecting plate; 2. hydraulic cylinder; 3. supporting plate; 4. telescopic cylinder; 5. telescopic rod; 6. insertion nail; 7. sliding cavity; 8. extension auxiliary plate group; 801. first folding plate; 802. second folding plate; 803. push-pull handle; 804. slide bar; 805. moving groove; 9. positioning mechanism; 901. insertion hole; 902. positioning rod; 903. positioning plate; 904. first connecting ring; 905. second connecting ring; 10. slide groove; 11. hinge mechanism; 1101. mounting groove; 1102. hinge; 1103. rivet; 12. mounting plate; 13. fixing screw; 14. positioning bolt. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0036] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0041] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is 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 that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0043] See also Figure 1-6 , the present application provides a stabilizing device for preventing a high-angle rock tunnel boring machine from sliding down, comprising a connecting plate 1;

[0044] A hydraulic cylinder 2 is fixedly installed at the lower center of the connecting plate 1, and the output end of the hydraulic cylinder 2 is fixedly connected to a support plate 3. Telescopic cylinders 4 are fixedly installed at the four corners of the lower part of the connecting plate 1, and telescopic rods 5 are movably installed inside the telescopic cylinders 4. The bottom ends of the telescopic rods 5 are fixedly connected to the four corners of the support plate 3.

[0045] Sliding cavities 7 are provided at both ends of the support plate 3, and an epitaxial auxiliary plate group 8 is movably provided inside the sliding cavity 7. The epitaxial auxiliary plate group 8 adopts a folding combination design, and the epitaxial auxiliary plate group 8 includes a first folding plate 801 and a second folding plate 802. The length of the second folding plate 802 is shorter than that of the first folding plate 801. A plurality of insertion pins 6 are arranged in a matrix at the bottom end of the support plate 3, and the plurality of insertion pins 6 are all hexagonal tapered pins;

[0046] It also includes a positioning mechanism 9, which includes a positioning rod 902, one end of which is fixedly connected to a positioning plate 903, a first connecting ring 904 is welded to one side of the positioning plate 903, and a second connecting ring 905 is welded to the support plate 3. The first connecting ring 904 and the second connecting ring 905 are connected by a connecting chain. When the tunnel boring machine works in a downhill tunnel at a large inclination angle, it reaches the designated working position, puts down the hydraulic support legs, and props up the tunnel boring machine as a whole, which can effectively prevent it from slipping; by adjusting the height of the front and rear four hydraulic support legs , adjust the tunnel boring machine to a horizontal state, which is most conducive to the tunnel boring machine cutting. The cutting head fully ensures that the tunnel has sufficient height after excavation, and the tunnel boring machine cutting head has sufficient cutting force, eliminating the influence of large inclination angle on the operation of the tunnel boring machine, that is, the height adjustment is achieved through the hydraulic cylinder 2, and a telescopic cylinder 4 and a telescopic rod 5 are provided to achieve stability, and an insertion nail 6 is provided to achieve stable fixation, and an extended auxiliary plate group is provided to increase the support area of ​​the support plate 3, improve the support stability, and can achieve stable positioning to prevent the extended auxiliary plate group 8 from moving and folding.

[0047] In this embodiment, the two sides of the support plate 3 are respectively provided with slide grooves 10, and the two sides of the extension auxiliary plate group 8 are respectively fixed with slide bars 804, and the slide bars 804 slide inside the slide grooves 10. The settings of the slide grooves 10 and the slide bars 804 can make the extension auxiliary plate group 8 stably and movably connected to the inside of the support plate 3, so as to facilitate unfolding and folding. The bottom ends of the slide bars 804 are welded to the two sides of the first folding plate 801, and the second folding plate 802 is movably located between the slide bars 804 on both sides. The slide bar 804 and the second folding plate 802 are on the same horizontal plane, and the slide bar 804 is connected to the first folding plate 801, which can maintain the support plate 3. The stable sliding connection can also make it easy for the second folding plate 802 to rotate and unfold. A push-pull handle 803 is welded to a corner of the upper end of the first folding plate 801 at both ends. A movable groove 805 is opened on the side edges of the upper ends of the support plate 3. The push-pull handle 803 slides inside the movable groove 805. The setting of the push-pull handle 803 can realize the push-pull adjustment of the first folding plate 801 for easy unfolding. One end of the first folding plate 801 and the second folding plate 802 are rotatably connected by a hinge mechanism 11. The setting of the hinge mechanism 11 can make the first folding plate 801 and the second folding plate 802 rotate and open, which is convenient for increasing the support area.

[0048] In the present application document, the hinge mechanism 11 includes a mounting groove 1101 opened at the ends of the first folding plate 801 and the second folding plate 802, and the interior of the mounting groove 1101 is fixedly installed with a hinge 1102 by a rivet 1103. The setting of the mounting groove 1101 can reduce the volume of the hinge mechanism 11, which causes the first folding plate 801 and the second folding plate 802 to be unable to fit the ground. The positioning mechanism 9 also includes an insertion hole 901 arranged on one side of the first folding plate 801, the slide bar 804 and the support plate 3, and the positioning rod 90 2 is movably inserted into the inside of the insertion hole 901. The setting of the insertion hole 901 is convenient for the positioning rod 902 to effectively realize the positioning and fixing of the first folding plate 801. The rotating connection ends of the first folding plate 801 and the second folding plate 802 in the extension auxiliary plate group 8 at both ends are also provided with a group of positioning mechanisms 9 for positioning and installation. The first folding plate 801 and the second folding plate 802 are also connected and positioned by the positioning mechanisms 9 to prevent the first folding plate 801 and the second folding plate 802 from being unable to be fixedly supported when supporting the ground, causing rotation and retraction.

[0049] In the specific setting, a mounting plate 12 is welded to the output end of the hydraulic cylinder 2, and the four corners of the mounting plate 12 are fixedly connected to the support plate 3 by fixing screws 13. The setting of the mounting plate 12 facilitates the stable fixed connection of the support plate 3. The four corners of the connecting plate 1 are respectively threaded with positioning bolts 14, and the connecting plate 1 is fixedly connected to the lower part of the tunnel boring machine by the four positioning bolts 14. The setting of the positioning bolts 14 facilitates the fixed installation of the equipment and the tunnel boring machine.

[0050] Specifically, the working principle of the stabilizing device for preventing a high-angle rock tunnel boring machine from sliding down is as follows: when in use, the equipment is fixedly installed on the lower part of the boring machine by means of the connecting plate 1 and the positioning bolts 14, and then the height of the stabilizing device is adjusted by means of the hydraulic cylinder 2, that is, the support plate 3 is lifted and lowered by means of the hydraulic cylinder 2, and an insertion nail 6 is provided at the bottom of the support plate 3, so that when the support plate 3 is attached to the ground, the insertion nail 6 can be effectively inserted into the ground to achieve stable installation and fixation, and a telescopic cylinder 4 and a telescopic rod 5 are provided between the connecting plate 1 and the support plate 3, so that the support plate 3 can maintain balance and stability when being lifted and lowered, and then the positioning mechanism 9 is removed, and then the extension auxiliary plate group 8 is pulled out by means of the push-pull handle 803, and then the second folding plate 802 is rotated and opened from the first folding plate 801, and the first folding plate 801 and the second folding plate 802 are stably fixed by means of the positioning rod 902 in the positioning mechanism 9, so as to prevent the first folding plate 801 and the second folding plate 802 from rotating and retracting when being subjected to force, resulting in failure to achieve stable support.

[0051] The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0052] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A stabilizing device for preventing a high-angle rock tunnel boring machine from sliding down, characterized in that: comprising a connecting plate (1); A hydraulic cylinder (2) is fixedly mounted at the center of the lower portion of the connecting plate (1); the output end of the hydraulic cylinder (2) is fixedly connected to a support plate (3); telescopic cylinders (4) are fixedly mounted at the four corners of the lower portion of the connecting plate (1); a telescopic rod (5) is movably mounted inside the telescopic cylinder (4); and the bottom end of the telescopic rod (5) is fixedly connected to the four corners of the support plate (3); Sliding cavities (7) are provided at both ends of the support plate (3); an epitaxial auxiliary plate group (8) is movably provided inside the sliding cavity (7); the epitaxial auxiliary plate group (8) adopts a folding combination design; the epitaxial auxiliary plate group (8) comprises a first folding plate (801) and a second folding plate (802); the length of the second folding plate (802) is shorter than that of the first folding plate (801); a plurality of insertion pins (6) are arranged in a matrix at the bottom end of the support plate (3); the plurality of insertion pins (6) are all hexagonal conical pins; It also comprises a positioning mechanism (9), the positioning mechanism (9) comprising a positioning rod (902), one end of the positioning rod (902) being fixedly connected to a positioning plate (903), a first connecting ring (904) being welded to one side of the positioning plate (903), a second connecting ring (905) being welded to the support plate (3), and the first connecting ring (904) and the second connecting ring (905) being connected via a connecting chain; Slide grooves (10) are respectively provided on both sides of the support plate (3), and slide bars (804) are respectively fixedly provided on both sides of the extension auxiliary plate group (8), and the slide bars (804) slide inside the slide grooves (10); The positioning mechanism (9) further comprises an insertion hole (901) arranged on one side of the first folding plate (801), the sliding bar (804) and the support plate (3), and the positioning rod (902) is movably inserted into the interior of the insertion hole (901).

2. A stabilizing device for preventing a high-angle rock tunnel boring machine from sliding down according to claim 1, characterized in that: The bottom ends of the slide bar (804) are welded to the two sides of the first folding plate (801); the second folding plate (802) is movable between the slide bars (804) on both sides; the slide bar (804) and the second folding plate (802) are on the same horizontal plane.

3. A stabilizing device for preventing a high-angle rock tunnel boring machine from sliding down according to claim 2, characterized in that: A push-pull handle (803) is welded to a corner of the upper end of the first folding plate (801) at both ends, and movable grooves (805) are provided on the sides of both ends of the upper part of the support plate (3), and the push-pull handle (803) slides inside the movable groove (805).

4. A stabilizing device for preventing a high-angle rock tunnel boring machine from sliding down according to claim 3, characterized in that: One end of the first folding plate (801) and one end of the second folding plate (802) are rotatably connected via a hinge mechanism (11).

5. The stabilizing device for preventing a high-angle rock tunnel boring machine from sliding down according to claim 4, characterized in that: The hinge mechanism (11) comprises a mounting groove (1101) provided at the ends of the first folding plate (801) and the second folding plate (802), and a hinge (1102) is fixedly mounted inside the mounting groove (1101) via a rivet (1103).

6. The stabilizing device for preventing a high-angle rock tunnel boring machine from sliding down according to claim 1, characterized in that: The rotating connection ends of the first folding plate (801) and the second folding plate (802) in the extension auxiliary plate group (8) at both ends are also provided with a group of positioning mechanisms (9) for positioning and installation.

7. The stabilizing device for preventing a high-angle rock tunnel boring machine from sliding down according to claim 1, characterized in that: A mounting plate (12) is welded to the output end of the hydraulic cylinder (2), and the four corners of the mounting plate (12) are fixedly connected to the support plate (3) via fixing screws (13).

8. The stabilizing device for preventing a high-angle rock tunnel boring machine from sliding down according to claim 1, characterized in that: Positioning bolts (14) are respectively threadedly connected at the four corners of the connection plate (1), and the connection plate (1) is fixedly connected to the lower part of the tunnel boring machine via the four positioning bolts (14).

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