Hydraulic forepoling bar supporting device of cantilever type heading machine

Abstract

The utility model discloses a hydraulic forepoling bar supporting device of a cantilever type heading machine, and relates to the field of cantilever type heading machines, in particular to the hydraulic forepoling bar supporting device of the cantilever type heading machine, which comprises a hydraulic forepoling bar body of the cantilever type heading machine and a main frame body arranged on the hydraulic forepoling bar body, the utility model discloses a cantilever type heading machine which comprises a main frame body, telescopic auxiliary frame bodies are arranged on the two sides of the main frame body respectively, an unfolding frame is arranged on each auxiliary frame body, an adjusting assembly used for adjusting the opening angle of each unfolding frame is arranged on each auxiliary frame body, and each adjusting assembly comprises a positioning seat installed on the main frame body. When a hydraulic forepoling bar supporting device of an existing cantilever type heading machine is used for supporting a roadway, the width of a supporting face can be adjusted, however, the supporting range is not comprehensive enough, the two sides of the top of the roadway cannot be supported, and the two sides of the top of the roadway still have the risk of collapse. Therefore, the problem that the roadway cannot be supported comprehensively is solved.

Description

Technical Field

[0001] The utility model relates to the field of cantilever type tunnel boring machines, in particular to a hydraulic front exploration beam supporting device for a cantilever type tunnel boring machine. Background Art

[0002] The cantilever roadheader is a comprehensive mechanical equipment that integrates multiple functions such as cutting, loading and transportation, self-propelled transportation, and spray dust removal. It is widely used in underground engineering fields such as tunnels, mines, and water conservancy.

[0003] A boom roadheader is a combined unit capable of cutting, loading and transporting, self-propelled transport, and spray dust removal. With the rapid development of comprehensive mechanized coal mining at the mining face, coal mines are demanding increasingly higher tunneling speeds. To increase tunneling speeds, boom roadheaders have been extensively developed and gradually refined.

[0004] There is a chance of tunnel collapse when the existing cantilever tunnel boring machine is excavating the tunnel. The hydraulic front exploration beam support device of the existing cantilever tunnel boring machine supports the tunnel. The width of this support surface can be adjusted, but the support range is not comprehensive enough and cannot support both sides of the tunnel top. There is still a risk of collapse on both sides of the tunnel top, so the tunnel cannot be fully supported.

[0005] Therefore, it is necessary to design a new type of cantilever tunnel boring machine hydraulic front exploration beam support device to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a hydraulic front exploration beam supporting device for a cantilever type roadheader to solve the problems raised by the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cantilever tunnel boring machine hydraulic front exploration beam support device, comprising a cantilever tunnel boring machine hydraulic front exploration beam body and a main frame body installed on the body, retractable sub-frames are respectively provided on both sides of the main frame body, an expansion frame is provided on the sub-frame body, an adjustment component for adjusting the opening angle of the expansion frame is provided on the sub-frame body, the adjustment component comprises a positioning seat installed on the main frame body, a conduit is provided on the main frame body, the positioning seat is hollow, a hydraulic rod is provided between the sub-frame body and the expansion frame, the positioning seat is connected to the conduit, and the positioning seat is provided with a telescopic component for adjusting the opening length of the sub-frame body.

[0008] Preferably, the telescopic assembly includes a bidirectional screw provided inside the positioning seat, the sub-frame is slidably connected to the catheter, a connecting plate is provided on the sub-frame, and both ends of the bidirectional screw are respectively screwed to the connecting plate.

[0009] Preferably, a fixing seat is provided inside the positioning seat, the bidirectional screw is rotatably provided on the fixing seat, a driven gear is provided in the middle of the bidirectional screw, and a driving gear matching the driven gear is provided inside the positioning seat.

[0010] Preferably, a telescopic column is hinged to one end of the main body, and a hydraulic rod 2 is provided at the middle and lower part of the telescopic column and is hinged to the other end of the main body.

[0011] Preferably, a hydraulic rod three is hinged between the telescopic column and the main frame.

[0012] Preferably, a cover plate is provided on the top of the main frame.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In the present invention, an expansion frame is provided on the sub-frame, which can be folded under the sub-frame to improve the support surface of the tunnel. The main frame, sub-frame and expansion frame of this device can be opened and form an arch, which can improve the support effect of the tunnel.

[0015] 2. In the present invention, the two auxiliary supports are connected by a bidirectional screw, and the bidirectional screw is driven to rotate by a driving gear and a driven gear. The rotation of the bidirectional screw can drive the auxiliary supports on both sides to move closer to or away from each other, which can facilitate the adjustment of the overall width of the main support and the auxiliary support, and can support tunnels of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a left-side stereoscopic sectional view of the present invention.

[0018] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.

[0019] In the figure: 1. Main body; 2. Main frame; 3. Sub-frame; 4. Expanding frame; 5. Positioning seat; 6. Conduit; 7. Hydraulic rod 1; 8. Bidirectional screw; 9. Connecting plate; 10. Fixed seat; 11. Driven gear; 12. Driving gear; 13. Telescopic column; 14. Hydraulic rod 2; 15. Hydraulic rod 3; 16. Cover plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] All electronic components in this application are controlled by external controllers.

[0022] Example 1

[0023] Please refer to Figure 1-3 As shown, the utility model provides a cantilever tunnel boring machine hydraulic front exploration beam support device, including a cantilever tunnel boring machine hydraulic front exploration beam body 1 and a main frame body 2 installed on the body 1, and retractable sub-frames 3 are respectively provided on both sides of the main frame body 2, and an expansion frame 4 is provided on the sub-frame body 3, and an adjustment component for adjusting the opening angle of the expansion frame 4 is provided on the sub-frame body 3, and the adjustment component includes a positioning seat 5 installed on the main frame body 2, and a conduit 6 is provided on the main frame body 2. The positioning seat 5 is hollow, and a hydraulic rod 7 is provided between the sub-frame body 3 and the expansion frame 4. The positioning seat 5 is connected with the conduit 6, and the positioning seat 5 is provided with a telescopic component for adjusting the opening length of the sub-frame body 3.

[0024] The main body 1 is a hydraulic front exploration beam of a cantilever tunnel boring machine commonly used on the market. The main frame 2 is hinged at the top of the main frame 1, and the sub-frame 3 is slidably connected to both sides of the main frame 2. The sub-frame 3 can be extended and retracted relative to the main frame 2, and the support surface of this device can be adjusted according to the supported area. The expansion frame 4 is hinged at the end of the sub-frame 3. The expansion frame 4 can be flipped to a certain angle, which can further improve the support surface. The expansion frame 4 can be folded up to further improve the support effect. The positioning seat 5 is fixedly connected to the main frame 2, and the guide tube 6 is fixedly connected to the main frame 2. The hydraulic rod 7 is hinged between the sub-frame 3 and the expansion frame 4. The hydraulic rod 7 can be purchased directly from the market. The expansion and contraction of the hydraulic rod 7 can drive the expansion frame 4 to adjust the angle, thereby further improving the support effect.

[0025] Specifically, the telescopic assembly includes a bidirectional screw 8 provided inside the positioning seat 5, the sub-frame 3 is slidably connected to the guide tube 6, the sub-frame 3 is provided with a connecting plate 9, and the two ends of the bidirectional screw 8 are respectively screwed to the connecting plate 9; a fixed seat 10 is provided inside the positioning seat 5, and the bidirectional screw 8 is rotatably provided on the fixed seat 10, and a driven gear 11 is provided in the middle of the bidirectional screw 8, and a driving gear 12 that cooperates with the driven gear 11 is provided inside the positioning seat 5, and the fixed seat 10 is fixed inside the positioning seat 5. The bidirectional screw 8 is rotatably connected to the fixed seat 10, the connecting plate 9 is fixedly connected to the sub-frame 3, the two ends of the bidirectional screw 8 are respectively screwed with the connecting plates 9 on the two sub-frames 3, the driven gear 11 is fixedly connected to the bidirectional screw 8, and the driving gear 12 is rotatably connected to the inside of the positioning seat 5. The driving gear 12 can use a common reduction motor on the market as power. The driving gear 12 can drive the bidirectional screw 8 to rotate through the driven gear 11. The bidirectional screw 8 can drive the sub-frames on both sides to approach or move away from each other, which can facilitate the adjustment of the support surface of this device.

[0026] Among them, one end of the main body 1 is hinged with a telescopic column 13, and the lower middle part of the telescopic column 13 is provided with a hydraulic rod 2 14 hinged to the other end of the main body 1, and a hydraulic rod 3 15 is hinged between the telescopic column 13 and the main frame 2. The telescopic column 13 is a telescopic plate structure commonly seen on the market. This telescopic plate structure uses hydraulics as power. Hydraulic rod 2 14 and hydraulic rod 3 15 can be purchased directly from the market. Hydraulic rod 2 14 is hinged between the telescopic column 13 and the main body 1. The telescopic function of hydraulic rod 2 14 can adjust the angle of the telescopic column 13, which facilitates the folding and opening of the device and is more convenient to use. Hydraulic rod 3 15 is hinged between the telescopic column 13 and the main frame 2. The telescopic function of hydraulic rod 3 15 can adjust the angle of the support surface according to specific circumstances.

[0027] On the basis of the above embodiment, specifically, a cover plate 16 is provided on the top of the main frame 2 , and the cover plate 16 is fixed on the top of the main frame 2 to protect the main frame 2 .

[0028] Working principle: When in use, first drive the cantilever tunnel boring machine to the position where support is required, then adjust the position of the main support through the hydraulic rod 2 14. After adjusting to the appropriate angle, adjust the extension of the sub-support according to the width of the tunnel to be excavated, and then adjust the height of the main support according to specific needs. After the height adjustment of the main support is completed, the expansion frames 4 on both sides are opened through the hydraulic rod 1 7, and the angle of the main support support surface is adjusted through the hydraulic rod 3 15. When adjusting the extension position of the sub-support, the driven gear 11 is driven to rotate by the driving gear 12, and the driven gear 11 can drive the bidirectional screw 8 to rotate. The rotation of the bidirectional screw 8 can drive the sub-supports on both sides to slide in the guide tube 6, which can facilitate support according to the shape of the tunnel to be excavated. After use, the device can be folded up by reverse operation to facilitate driving in narrower tunnels.

[0029] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. The hydraulic front beam support device of the cantilever type roadheader is characterized by: The invention comprises a cantilever-type tunnel boring machine hydraulic front exploration beam body (1) and a main frame body (2) installed on the body (1), wherein retractable sub-frame bodies (3) are respectively provided on both sides of the main frame body (2), an expansion frame (4) is provided on the sub-frame body (3), and an adjustment component for adjusting the opening angle of the expansion frame (4) is provided on the sub-frame body (3), wherein the adjustment component comprises a positioning seat (5) installed on the main frame body (2), a guide tube (6) is provided on the main frame body (2), and the positioning seat (5) is hollow, a hydraulic rod (7) is provided between the sub-frame body (3) and the expansion frame (4), the positioning seat (5) is connected to the guide tube (6), and the positioning seat (5) is provided with a telescopic component for adjusting the opening length of the sub-frame body (3).

2. The hydraulic front beam support device for a cantilevered tunnel boring machine according to claim 1, characterized in that: The telescopic assembly includes a bidirectional screw (8) provided inside a positioning seat (5), the sub-frame (3) is slidably connected to the guide tube (6), a connecting plate (9) is provided on the sub-frame (3), and both ends of the bidirectional screw (8) are respectively screwed to the connecting plate (9).

3. The hydraulic front beam support device for a cantilevered roadheader according to claim 2, characterized in that: A fixing seat (10) is provided inside the positioning seat (5), the bidirectional screw (8) is rotatably provided on the fixing seat (10), a driven gear (11) is provided in the middle of the bidirectional screw (8), and a driving gear (12) matched with the driven gear (11) is provided inside the positioning seat (5).

4. The hydraulic front beam support device for a cantilevered roadheader according to claim 3 is characterized in that: One end of the body (1) is hinged with a telescopic column (13), and the lower middle portion of the telescopic column (13) is provided with a hydraulic rod 2 (14) hinged with the other end of the body (1).

5. The hydraulic front beam support device for a cantilever type roadheader according to claim 4 is characterized in that: A hydraulic rod three (15) is hinged between the telescopic column (13) and the main frame (2).

6. The hydraulic front beam support device for a cantilever type roadheader according to claim 5, characterized in that: A cover plate (16) is provided on the top of the main frame (2).

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