A medium-deep hole trolley drilling device

Abstract

The present invention relates to the technical field of underground rock drilling, and discloses a medium-deep hole trolley drilling device, including a base, a vertical wall, a rotating shaft, a balancing holder, a mounting frame, a power source, a drill rod, and a plurality of limited telescopic rods; the base is fixed on the base of the medium-deep hole trolley, and the base has a mounting side extending outside the medium-deep hole trolley; the balancing holder is fixed on the base; the vertical wall is vertically mounted on the mounting side, and a rotating through-piece is rotatably mounted on the vertical wall; the rotating shaft is rotatably mounted in the rotating through-piece, and one end of the rotating shaft is rotatably connected to the balancing holder; the mounting frame is fixedly mounted on the other end of the rotating shaft through a support arm, and a slide is slidably mounted on the mounting frame; the drill rod is mounted on the power output end of the power source; and at least two of the plurality of limited telescopic rods are respectively mounted on the two ends of the mounting frame. The main part of the device is outside the vehicle body, thereby providing a 360-degree rotation space without dead angles, and finally realizing the 360-degree rotation of the device.

Description

Technical Field

[0001] The invention relates to the technical field of underground rock drilling, and in particular to a medium-deep hole trolley drilling device. Background Art

[0002] A medium-deep hole refers to a hole with a depth of more than 5 meters. Therefore, a medium-deep hole trolley refers to a trolley used for underground drilling. A drilling device is usually installed on the medium-deep hole trolley, which can be remotely controlled to drill holes in underground rock.

[0003] A Chinese patent with publication number CN117145403A discloses a medium-deep hole trolley drilling device, including a base, two brackets are fixedly connected to the base, a rotating plate is connected to the two brackets for common rotation, a through hole is opened on the rotating plate, a drilling assembly is arranged inside the through hole, the drilling assembly includes a sliding seat, a drill rod, a first engine, a prism, a screw, a second engine and a chain, and an adjustment assembly is arranged on the base. In this patent, while drilling, an external high-pressure water source can be connected and the water source is sprayed from the drill bit. The sprayed water flow can not only eliminate the gravel and dust generated in the borehole, but also cover the surface of the drill rod with water flow, thereby cooling the drill rod during the drilling process. Continuous cooling can prevent the surface of the drill rod from generating high temperature, thereby preventing the drill rod from affecting the drilling performance due to high temperature. After the water flow contacts the gravel and mud dust, the muddy water formed can be collected by the arc bucket and filtered.

[0004] However, this patent sets the drilling assembly on a turntable, and the turntable is rotatably set above the bracket, and the angle is mainly adjusted by the driving structure between the turntable and the bracket. The adjustment range is less than 90 degrees. When the hole opening position is located above or below the trolley, it exceeds the adjustment range of the drilling; and the drilling produces a reaction that leads to unstable drilling, and the turntable lacks other auxiliary supports, resulting in unstable drilling. Summary of the invention

[0005] The present application aims to solve the technical problem that the drilling assembly in the prior art has a small rotation angle and is unstable. To this end, the present invention provides a medium-deep hole trolley drilling device.

[0006] The solution of the embodiment of the present invention is as follows:

[0007] A medium-long hole trolley drilling device comprises a base, a vertical wall, a rotating shaft, a balancing holder, a mounting frame, a power source, a drill rod and a plurality of limit telescopic rods; the base is fixed on the base of the medium-long hole trolley, and the base has a mounting side extending outside the medium-long hole trolley;

[0008] The balance holder is fixed on the base;

[0009] The vertical wall is vertically mounted on the mounting side, and a rotating penetration member is rotatably mounted on the vertical wall;

[0010] The rotating shaft is rotatably installed in the rotating penetration member, and one end of the rotating shaft is rotatably connected to the balancing holder;

[0011] The mounting frame is fixedly mounted on the other end of the rotating shaft through a supporting arm, and a slide table is slidably mounted on the mounting frame;

[0012] The power source 1 is installed on the slide;

[0013] The drill rod is installed on the power output end of the power source 1;

[0014] At least two of the plurality of position-limiting telescopic rods are respectively mounted on two ends of the mounting frame.

[0015] Preferably, the mounting frame is U-shaped, and a plurality of limiting sliding bars are connected between the two ends of the U-shaped mounting frame, and the plurality of limiting sliding bars all slide through the slide table.

[0016] Preferably, a second power source for driving the slide to slide back and forth is provided on the mounting frame.

[0017] Preferably, a rotating hole for nesting the drill rod is opened at one end of the mounting frame, and a telescopic cylinder is installed on the end, an extrusion ring plate is provided at one end of the telescopic cylinder close to the drill bit of the drill rod, the inner cavity of the telescopic cylinder is connected to an external water pumping device through a water pumping pipe, and a power source three for driving the telescopic cylinder to extend and retract is also installed on the telescopic cylinder.

[0018] Preferably, a power source four is installed on the balance cage, and the power source four is transmission-connected to the rotating shaft via a reduction gear set.

[0019] Preferably, the outer ends of the position-limiting telescopic rods are all equipped with piercing structures.

[0020] Preferably, a plurality of arc grooves are evenly opened on the outer circumference of the extrusion ring plate, and movable arc plates are slidably installed in the arc grooves. The movable arc plates are connected to the inner side of the extrusion ring plate by a spring, and a rubber bag is fixedly connected to the outer side of the extrusion ring plate, and the rubber bag is connected to an inflation tube for passing through between two adjacent extrusion ring plates.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] Since the main parts of the device are installed on the vertical wall on the installation side, and the rear part of the base is arranged outside the rear end of the vehicle, and the rotation of the main part of the device is mainly achieved by controlling the rotation of the rotating axis of the power source four, the power source of the rotation drive of the device can achieve 360-degree rotation without dead angles. The device of the present invention is side-mounted so that the main part of the device is outside the vehicle body, thereby providing a 360-degree rotation space without dead angles, and finally realizing the 360-degree rotation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention from a first viewing angle;

[0025] Figure 2 It is a schematic diagram of the overall structure of the second viewing angle of the present invention;

[0026] Figure 3 It is a schematic diagram of the overall structure of the present invention from a third viewing angle;

[0027] Figure 4 It is a schematic diagram of the installation of the overall structure of the present invention;

[0028] Figure 5 It is a schematic structural diagram of the extrusion ring plate of the present invention from a first perspective;

[0029] Figure 6 It is a schematic structural diagram of the extrusion ring plate from a second perspective of the present invention.

[0030] Reference numerals:

[0031] 1. Base; 2. Vertical wall; 3. Rotating axis; 4. Balance holder; 5. Drill bit; 6. Mounting frame; 7. Power source 1; 8. Drill rod; 9. Limit telescopic rod; 10. Mounting side; 11. Rotating threading piece; 12. Support arm; 13. Slide; 14. Limit slide; 15. Power source 2; 16. Rotating hole; 17. Telescopic cylinder; 18. Extrusion ring plate; 19. Pumping pipe; 20. Power source 3; 21. Power source 4; 22. Reduction gear set; 23. Insertion structure; 24. Movable arc plate; 25. Arc groove; 26. Spring; 27. Rubber bag; 28. Inflatable tube. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0033] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0034] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] like Figures 1 to 6 As shown, the present invention provides a medium-deep hole trolley drilling device, including a base 1, a vertical wall 2, a rotating shaft 3, a balance holder 4, a mounting frame 6, a power source 7, a drill rod 8 and a plurality of limiting telescopic rods 9.

[0038] The base 1 of the present invention is fixed on the base 1 of the medium-deep hole trolley, and is generally installed on the carriage of the trolley by bolts and other fixings. The base 1 has a mounting side 10 extending outside the medium-deep hole trolley. In other words, the tail of the control base 1 is slightly beyond the tail of the trolley carriage by 0.5m-2m; the balance holder 4 is fixed on the base 1, and the balance holder 4 is an L-shaped bracket that can be used to provide more diverse installation spaces; the vertical wall 2 is vertically installed on the mounting side 10, so that the vertical wall 2 is equivalent to an extension of the mounting side 10, which is equivalent to expanding the installation space of the mounting side 10. A rotating through-piece 11 is rotatably mounted on the vertical wall 2, and the rotating through-piece 11 can be a bearing; the rotating shaft 3 is rotatably mounted in the rotating through-piece 11, and one end of the rotating shaft 3 is rotatably connected to the balancing holder 4, thereby enhancing the rotation stability of the rotating shaft 3; the mounting frame 6 is fixedly mounted on the other end of the rotating shaft 3 through the support arm 12, and a slide 13 is slidably mounted on the mounting frame 6; the power source 17 is mounted on the slide 13; the drill rod 8 is mounted on the power output end of the power source 17; at least two of the multiple limit telescopic rods 9 are respectively mounted on the two ends of the mounting frame 6. The mounting frame 6 is U-shaped, and multiple limit slides 14 are connected between the two ends of the U-shaped mounting frame 6, and the multiple limit slides 14 all slide through the slide 13. The mounting frame 6 is provided with a power source 2 15 for driving the slide 13 to slide back and forth. The balancing holder 4 is equipped with a power source 4 21, and the power source 4 21 is connected to the rotating shaft 3 through a reduction gear set 22. The outer ends of the position-limiting telescopic rods 9 are all provided with piercing structures 23 .

[0039] When using this device:

[0040] First, the trolley is driven to the designated position. Since the main parts of the device are installed on the vertical wall 2 of the installation side 10, and the tail of the base 1 (i.e., the installation side 10) is arranged outside the rear end of the vehicle, and the rotation of the main part of the device is mainly achieved by controlling the rotation of the rotating shaft 3 using the power source 21 (generally a servo motor), the power source of the rotation drive of the device can achieve 360-degree rotation without dead angles. The device of the present invention is side-mounted so that the main part of the device is outside the vehicle body, thereby providing a 360-degree rotation without dead angles, and finally achieving 360-degree rotation of the device;

[0041] Specifically, the power source 21 (generally a servo motor) drives the reduction gear set 22 to rotate. After the power is transmitted, the reduction gear set 22 drives the rotating shaft 3 coaxially connected to one of the gears of the reduction gear set 22 to rotate. When the rotating shaft 3 rotates a set angle, the rotating shaft 3 drives the support arm 12 fixed thereto to rotate synchronously. Since the rotating shaft 3 is circular, it can be connected to the support arm 12 in a transmission manner similar to a spline. The side of the support arm 12 close to the mounting frame 6 can be a double arm, which can more stably realize the fixed connection between the support arm 12 and the mounting frame 6. Therefore, the rotation of the support arm 12 at a certain angle will drive the mounting frame 6 to rotate a set angle until the drill rod 8 installed on the mounting frame 6 is facing the target position.

[0042] At this time, the two limit telescopic rods 9 are extended at the same time until the insertion structures 23 at both ends of the limit telescopic rods 9 are inserted into the inner wall of the underground passage where the trolley is located, and then the power supply of the power source 7 is turned on. The power source 7 is generally a DC motor. The output shaft of the power source 7 directly drives the drill rod 8 to rotate. Note that the drill rod 8 itself can be smooth. A rotation hole 16 for nesting the drill rod 8 can be opened at one end of the mounting frame 6 to improve the stability of the drill rod 8.

[0043] The drill rod 8 drives the drill bit 5 to rotate, and then drives the slide 13 to slide along the limit slide rod 14 through the power source 2 15 (usually a hydraulic cylinder). The limit slide rod 14 is used to improve the sliding stability of the slide 13. The sliding of the slide 13 drives the drill bit 5 away from the mounting frame 6 and deeper into the inner wall of the underground channel to achieve drilling.

[0044] Since the present invention aims at improving the drilling angle and drilling stability, the cooling means of the drill bit 5 can adopt any means of the prior art, such as the cooling means in the prior art document (CN117145403A). However, the document uses an arc-shaped plate to receive the coolant flowing out of the borehole. However, due to the rotation of the drill bit 5, the coolant will rotate and spray out of the borehole, and the plate is very limited in receiving the coolant, which will cause a large amount of coolant to splash out, thereby causing excessive coolant in the downhole channel, affecting subsequent operations.

[0045] Therefore, the present invention further provides that one end of the mounting frame 6 is provided with a rotating hole 16 for nesting the drill rod 8, and a telescopic cylinder 17 is installed on the end, and an extrusion ring plate 18 is provided at one end of the telescopic cylinder 17 close to the drill bit 5 of the drill rod 8. The inner cavity of the telescopic cylinder 17 is connected to the external pumping equipment through a pumping pipe 19, and a power source 20 for driving the telescopic cylinder 17 to extend and retract is also installed on the telescopic cylinder 17.

[0046] Before the drill bit 5 enters the inner wall of the underground passage, the telescopic cylinder 17 is driven to extend by the power source 20 (which can be a telescopic cylinder, a telescopic hydraulic cylinder, etc.) until the outer end of the telescopic cylinder 17 is pressed against the inner wall of the underground passage. The center line of the outer end of the telescopic cylinder 17 has an opening, so that the drill bit 5 can pass freely through the opening. There is a gap between the maximum diameter of the drill bit 5 and the inner wall of the opening to ensure that the opening does not affect the rotation of the drill bit 5. Therefore, the opening is slightly larger than the borehole formed by the drill bit 5, and the outer end surface of the telescopic cylinder 17 (that is, the extrusion ring plate 18) is tightly attached to the borehole, resulting in the coolant sprayed from the borehole can only enter the inside of the telescopic cylinder 17 through the opening. The telescopic cylinder 17 is formed by multiple sleeves being connected to each other, so its inner cavity has the function of storing coolant. The coolant stored in the telescopic cylinder 17 can be recovered by external equipment through the pumping pipe 19 after simple filtration.

[0047] When the extrusion ring plate 18 is a rigid structure such as a metal ring plate, it can not only recover the coolant but also provide stable support for the inner wall of the well, thereby preventing the outer end of the borehole from cracking and ensuring the integrity of the borehole, thus reducing the difficulty of subsequent blasting construction. However, the disadvantage of the rigid structure is that it needs to fit the inner wall of the well, and its applicability is poor.

[0048] When the outer end of the extrusion ring plate 18 is a flexible structure such as a rubber elastic airbag, it can only recover the coolant but cannot stably support the inner wall of the well.

[0049] Therefore, further, a plurality of arc grooves 25 are evenly opened on the outer periphery of the extrusion ring plate 18, and movable arc plates 24 are slidably installed in the arc grooves 25. The movable arc plates 24 are connected to the inner side of the extrusion ring plate 18 by springs 26. A rubber bag 27 is fixedly connected to the outer side of the extrusion ring plate 18, and the rubber bag 27 is connected to an inflation tube 28 for passing through between two adjacent extrusion ring plates 18.

[0050] When the surface of the inner wall of the well is uneven, the movably installed movable arc plate 24 can compress the spring 26 to move freely, so that the outer end of the movable arc plate 24 can fit the inner wall of the well as much as possible, and then the rubber bag 27 is inflated through the inflation tube 28 by the external inflation device. Since the movable arc plate 24 limits the lateral expansion of the rubber bag 27, the rubber bag 27 can only expand longitudinally and thus expand toward one side of the inner wall of the well. By increasing the internal pressure of the rubber bag 27, the rubber bag 27 has sufficient support for the inner wall of the well, and the rubber bag 27 itself can fit the inner wall relatively well, thereby achieving a better sealing and cooling liquid recovery effect.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A medium-long hole trolley drilling device, comprising a base (1), a vertical wall (2), a rotating shaft (3), a balancing holder (4), a mounting frame (6), a power source (7), a drill rod (8) and a plurality of limit telescopic rods (9); characterized in that: The base (1) is fixed on the base (1) of the medium-deep hole trolley, and the base (1) has a mounting side (10) extending outside the medium-deep hole trolley; The balancing retaining frame (4) is fixed on the base (1); The vertical wall (2) is vertically mounted on the mounting side (10), and a rotating penetration member (11) is rotatably mounted on the vertical wall (2); The rotating shaft (3) is rotatably mounted in the rotating penetration member (11), and one end of the rotating shaft (3) is rotatably connected to the balancing retaining frame (4); The mounting frame (6) is fixedly mounted on the other end of the rotating shaft (3) via a supporting arm (12), and a slide table (13) is slidably mounted on the mounting frame (6); The power source 1 (7) is installed on the slide (13); The drill rod (8) is installed on the power output end of the power source 1 (7); At least two of the plurality of position-limiting telescopic rods (9) are respectively mounted on two ends of the mounting frame (6); One end of the mounting frame (6) is provided with a rotation hole (16) for nesting the drill rod (8), and a telescopic cylinder (17) is installed on the end; an extrusion ring plate (18) is provided on the end of the telescopic cylinder (17) close to the drill bit (5) of the drill rod (8); the inner cavity of the telescopic cylinder (17) is connected to an external water pumping device via a water pumping pipe (19); and a power source (20) for driving the telescopic cylinder (17) to extend and retract is also installed on the telescopic cylinder (17); A power source four (21) is mounted on the balancing cage (4), and the power source four (21) is transmission-connected to the rotating shaft (3) via a reduction gear set (22); A plurality of arc-shaped grooves (25) are evenly formed on the outer circumference of the extrusion ring plate (18), and movable arc-shaped plates (24) are slidably mounted in the arc-shaped grooves (25). The movable arc-shaped plates (24) are connected to the inner side of the extrusion ring plate (18) via a spring (26). A rubber bag (27) is fixedly connected to the outer side of the extrusion ring plate (18), and the rubber bag (27) is connected to an inflation tube (28) for passing through between two adjacent extrusion ring plates (18); When the surface of the inner wall of the well is uneven, the movable arc plate (24) is movably installed to compress the spring (26), so that the outer end of the movable arc plate (24) fits the inner wall of the well, and the rubber bag (27) is inflated through the inflation tube (28) by an external inflation device. The movable arc plate (24) limits the lateral expansion of the rubber bag (27) so that the rubber bag (27) expands longitudinally. By increasing the internal pressure of the rubber bag (27), the rubber bag (27) has sufficient support for the inner wall of the well, and the bottom end of the rubber bag (27) can fit the inner wall.

2. A medium-long hole trolley drilling device according to claim 1, characterized in that: The mounting frame (6) is U-shaped, and a plurality of position-limiting sliding rods (14) are connected between the two ends of the U-shaped mounting frame (6), and the plurality of position-limiting sliding rods (14) all slide through the slide platform (13).

3. A medium-long hole trolley drilling device according to claim 1, characterized in that: The mounting frame (6) is provided with a second power source (15) for driving the slide table (13) to slide back and forth.

4. A medium-long hole trolley drilling device according to claim 1, characterized in that: The outer ends of the position-limiting telescopic rods (9) are each provided with a piercing structure (23).

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