Multifunctional opening and angle fixing device for tunneling faces

Abstract

This utility model relates to the field of drilling technology in coal mine tunneling faces, specifically to a multifunctional drilling angle fixing device for tunneling faces, comprising a sliding rod, a sliding sleeve, a fixed rod, and a setting rod. The sliding sleeve is slidably connected to the sliding rod and located outside the sliding rod. One end of the fixed rod is rotatably connected to the sliding rod and located at the tail of the sliding rod. One end of the setting rod is rotatably connected to the end of the fixed rod away from the sliding rod, and the other end of the setting rod is rotatably connected to the sliding sleeve. After the borehole angle is determined, the drilling inclination angle is determined according to the actual required inclination angle of the borehole, thereby ensuring the accuracy of the drilling inclination angle and the included angle. It also technically ensures the accuracy of the borehole verification and inspection drilling inclination angle and the included angle of the borehole, ensuring the accuracy of the verification parameters, further ensuring the safe production of the mine, and solving the problems of unreasonable design, inconvenient adjustment, and inaccurate positioning of existing drilling angle fixing devices.

Description

Technical Field

[0001] This utility model relates to the field of hole-opening technology in coal mine tunneling faces, and in particular to a multifunctional hole-opening angle-fixing device for tunneling faces. Background Technology

[0002] Article 89 of the Outburst Prevention Rules stipulates that the following methods may be used to predict the outburst risk of coal roadway excavation faces: (1) drill cuttings index method; (2) composite index method; (3) R-value index method; (4) other methods proven effective by testing. When using the first to third prediction methods, the arrangement of prediction boreholes shall be as follows: at least 3 prediction boreholes shall be constructed forward of the coal body in near-horizontal, gently inclined coal seam faces, and at least 2 prediction boreholes with a diameter of 42 mm and a depth of 8-1 m shall be constructed in inclined or steeply inclined coal seams. The boreholes shall be arranged in soft strata as much as possible, with one borehole located in the middle of the roadway cross-section and parallel to the excavation direction, and the termination points of the other boreholes located 2-4 m outside the outline of the roadway cross-section on both sides.

[0003] In traditional tunneling face construction verification and inspection drilling, the team's acceptance personnel need to lay out lines on the facing wall of the working face to determine the drilling position, drilling inclination angle, included angle, and drilling height, ensuring that the final drilling position is 2-4 meters outside the roadway outline. When the acceptance personnel's professional skills are not up to par or they are careless, it is easy to cause inaccurate drilling position data, verification data that cannot guide safe production, or blank data that may create hidden dangers for safe production. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-functional hole-opening and angle-fixing device for tunneling faces, which solves the problems of unreasonable design, inconvenient adjustment and inaccurate positioning of existing hole-opening and angle-fixing devices.

[0005] To achieve the above objectives, this utility model provides a multifunctional hole-opening and angle-fixing device for tunneling faces, comprising a sliding rod, a sliding sleeve, a fixed rod, and a setting rod; the sliding sleeve is slidably connected to the sliding rod and located outside the sliding rod; one end of the fixed rod is rotatably connected to the sliding rod and located at the tail of the sliding rod; one end of the setting rod is rotatably connected to the end of the fixed rod away from the sliding rod; and the other end of the setting rod is rotatably connected to the sliding sleeve.

[0006] The multi-functional hole-opening and angle-fixing device for the tunneling face also includes hooks and slope gauges. There are two hooks, which are detachably connected to the setting rod and located on the outside of the setting rod. The slope gauge is fixedly connected to the hooks and located at the bottom of the hooks.

[0007] The multi-functional hole-opening and angle-fixing device for the tunneling face also includes a plumb line, which is connected to the slope gauge and located at the center of the slope gauge.

[0008] The multi-functional hole-opening and angle-fixing device for the tunneling face also includes a plumb bob, which is fixedly connected to the plumb line and located on the outside of the plumb bob.

[0009] The multifunctional opening and angle fixing device for the tunneling face further includes a rotating plate and a hinge shaft. There are two rotating plates, which are respectively connected to the sliding rod and the fixed rod and are located between the sliding rod and the fixed rod. The hinge shaft is rotatably connected to the rotating plate and passes through the rotating plate.

[0010] This utility model discloses a multi-functional hole-opening angle-fixing device for tunneling faces. After the borehole angle is determined, the hole-opening angle is determined according to the actual required inclination angle of the borehole. This ensures the accuracy of the borehole opening angle and the included angle, and technically guarantees the accuracy of the borehole verification and inspection of the borehole opening angle and included angle at the tunneling face. It also ensures the accuracy of the verification parameters, further guaranteeing the safe production of the mine, and solving the problems of unreasonable design, inconvenient adjustment, and inaccurate positioning of existing hole-opening angle-fixing devices. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0012] Figure 1 This is a schematic diagram of the overall structure of a multifunctional hole-opening and angle-fixing device for a tunneling face, according to the first embodiment of this utility model.

[0013] Figure 2 This is a structural schematic diagram of the hinge position of the sliding rod and the fixed rod in the first embodiment of this utility model.

[0014] In the diagram: 1-sliding rod, 2-sliding sleeve, 3-fixed rod, 4-fixed value rod, 5-hook, 6-slope gauge, 7-plumb line, 8-plumb bob, 9-rotating plate, 10-hinge shaft. Detailed Implementation

[0015] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0016] The first embodiment of this application is as follows:

[0017] Please see Figure 1 and Figure 2 ,in, Figure 1 This is a schematic diagram of the overall structure of the multifunctional opening and angle fixing device for tunneling faces according to the first embodiment of this utility model. Figure 2 This is a structural schematic diagram of the hinge position of the sliding rod and the fixed rod in the first embodiment of this utility model. This utility model provides a multifunctional hole-opening and angle-fixing device for tunneling working faces, including a sliding rod 1, a sliding sleeve 2, a fixed rod 3, a setting rod 4, a hook 5, a slope gauge 6, a plumb line 7, a plumb bob 8, a rotating plate 9, and a hinge shaft 10. The aforementioned solution solves the problems of unreasonable design, inconvenient adjustment, and inaccurate positioning of existing hole-opening and angle-fixing devices.

[0018] In this specific embodiment, the sliding sleeve 2 is slidably connected to the sliding rod 1 and is located outside the sliding rod 1. One end of the fixed rod 3 is rotatably connected to the sliding rod 1 and is located at the tail of the sliding rod 1. One end of the fixed rod 4 is rotatably connected to the end of the fixed rod 3 away from the sliding rod 1, and the other end of the fixed rod 4 is rotatably connected to the sliding sleeve 2. The sliding rod 1 provides support for the device. The sliding sleeve 2 and the sliding rod 1 are tightly fitted and can move by external force. After moving, they can be positioned. The sliding rod 1, the fixed rod 4, and the fixed rod 3 are all solid metal rods. When drilling is required underground, the fixed rod 3 is placed on the roadway side. The position of the hinge point between the fixed rod 3 and the fixed rod 4 is determined according to the scale line on the fixed rod 3. This position is the drilling position. The entire device is set horizontally. At this time, the fixed rod 4... The slope gauge 6 displays a degree of 0°. The drilling clamping angle is calculated using trigonometric functions. Then, the sliding sleeve 2 is moved so that the base angle of the isosceles triangle is equal to the drilling clamping angle (the lengths of the fixed rod 3 and the fixed value rod 4 are constant; only the length of the base of the sliding rod 1 needs to be changed to achieve the appropriate base angle 'a'). At this point, the drill rod and the fixed value rod 4 are aligned, achieving the required left-right tilt angle. After determining the left-right tilt angle, the outer end of the fixed value rod 4 is raised or lowered, causing the slope gauge 6 to tilt. The plumb bob 8 creates an angle 'b' between the plumb line 7 and the zero-degree line of the slope gauge 6. By selecting a suitable angle, the vertical tilt angle of the fixed value rod 4 can be determined. With the drill rod and the fixed value rod 4 in the same direction, positioning, the determination of the left-right tilt angle, and the vertical tilt angle can be achieved, thus realizing directional drilling.

[0019] The hooks 5 are of two types, and the two hooks 5 are detachably connected to the setpoint rod 4 and are located on the outside of the setpoint rod 4 respectively. The slope gauge 6 is fixedly connected to the hooks 5 and is located at the bottom of the hooks 5. The hooks 5 are used to fix the slope gauge 6. The slope gauge 6 is a protractor used to measure angles.

[0020] Secondly, the suspension line 7 is connected to the slope gauge 6 and is located at the center of the slope gauge 6. The suspension line 7 is used to provide support for the plumb bob 8.

[0021] Furthermore, the hammer 8 is fixedly connected to the suspension line 7 and is located outside the hammer 8. The hammer 8 is conical with its tip pointing downwards.

[0022] Finally, there are two rotating plates 9. The two rotating plates 9 are respectively connected to the sliding rod 1 and the fixed rod 3, and are respectively located between the sliding rod 1 and the fixed rod 3. The hinge shaft 10 is rotatably connected to the rotating plates 9 and passes through the rotating plates 9. The rotating plates 9 and the hinge shaft 10 are used to connect the sliding rod 1 and the fixed rod 3, so that the sliding rod 1 and the fixed rod 3 can rotate along the hinge shaft 10.

[0023] Using the multi-functional borehole angle fixing device for tunneling faces in this embodiment, after the borehole angle is determined, the borehole inclination angle is determined according to the actual required inclination angle of the borehole. This ensures the accuracy of the borehole inclination angle and the included angle, and technically guarantees the accuracy of the borehole verification and inspection borehole inclination angle and included angle at the tunneling face, ensuring the accuracy of the verification parameters, further ensuring the safe production of the mine, and solving the problems of unreasonable design, inconvenient adjustment, and inaccurate positioning of existing borehole angle fixing devices.

[0024] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A multi-functional hole-opening and angle-fixing device for tunneling faces, characterized in that, Includes sliding rod, sliding sleeve, fixed rod, and setpoint rod; The sliding sleeve is slidably connected to the sliding rod and is located outside the sliding rod. One end of the fixed rod is rotatably connected to the sliding rod and is located at the tail of the sliding rod. One end of the fixed rod is rotatably connected to the end of the fixed rod away from the sliding rod, and the other end of the fixed rod is rotatably connected to the sliding sleeve.

2. The multifunctional hole-opening and angle-fixing device for tunneling faces as described in claim 1, characterized in that, The multi-functional hole-opening and angle-fixing device for tunneling faces also includes hooks and slope gauges. There are two hooks, which are detachably connected to the setting rod and located on the outside of the setting rod. The slope gauge is fixedly connected to the hooks and located at the bottom of the hooks.

3. The multi-functional hole-opening and angle-fixing device for tunneling faces as described in claim 2, characterized in that, The multi-functional hole-opening and angle-fixing device for the tunneling face also includes a plumb line, which is connected to the slope gauge and located at the center of the slope gauge.

4. The multifunctional hole-opening and angle-fixing device for tunneling faces as described in claim 3, characterized in that, The multi-functional hole-opening and angle-fixing device for tunneling faces also includes a plumb bob, which is fixedly connected to the plumb line and located on the outside of the plumb bob.

5. The multifunctional hole-opening and angle-fixing device for tunneling faces as described in claim 4, characterized in that, The multifunctional opening and angle fixing device for tunneling face also includes a rotating plate and a hinge shaft. There are two rotating plates, which are respectively connected to the sliding rod and the fixed rod and are located between the sliding rod and the fixed rod. The hinge shaft is rotatably connected to the rotating plate and passes through the rotating plate.

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