A new type of drill pipe guiding device

Abstract

The application discloses a novel drill rod guiding device and relates to the technical field of drill rod guiding devices.The novel drill rod guiding device comprises a bottom plate, the bottom plate is symmetrically fixed with a baffle plate in front and back directions, the baffle plate is in contact with a first arc-shaped seat and a second arc-shaped seat to realize positioning, and the bottom plate is fixed with the first arc-shaped seat and the second arc-shaped seat through bolts.The novel drill rod guiding device is used for clamping a cylindrical steel spacer through an arc-shaped mounting seat, a built-in pin shaft is used for fixing the position of the steel spacer, and finally the arc-shaped mounting seat is fixed on a propulsion system to achieve the effect of constraining a drill rod.Compared with a traditional guiding device, the guiding device is not prone to deformation and displacement, has higher wear resistance, has higher consistency of parts, is convenient to produce, and two arc-shaped mounting blocks are matched through protrusions and grooves, are fastened and matched through bolts, the reliability of clamping is ensured, assembly is more convenient, and the baffle plate below the arc-shaped mounting seat can effectively prevent gravel from entering a lower pulley structure and can prevent a pulley rope from being stuck, and the guiding device can better adapt to a rock drilling environment.

Description

Technical Field

[0001] This invention relates to the field of drill pipe guiding device technology, specifically a novel drill pipe guiding device. Background Technology

[0002] Underground tunneling drilling rigs are drilling machines used in underground tunneling projects such as underground mine roadways, railway and highway tunnels, and hydraulic culverts. During the drilling process, a long drill rod and drill bit are required to perform the drilling action. In order to ensure the stability of the drill rod, a drill rod guide device is needed to guide and position the drill rod.

[0003] Traditional guiding devices use a mounting base to hold a rubber block in place, and then use a spring clip to further constrain the rubber block. The drill rod slides within the rubber block to achieve the guiding function. However, during use, it has been found that the rubber guide block is easily damaged and deformed, has a short lifespan, and also has a significant impact on the accuracy of drilling, making it difficult to meet current drilling needs. Summary of the Invention

[0004] The purpose of this invention is to provide a novel drill pipe guiding device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel drill pipe guiding device, comprising a base plate, wherein baffles are symmetrically fixed on the base plate at the front and back, and the baffles contact a first arc-shaped seat and a second arc-shaped seat to achieve positioning; the first arc-shaped seat and the second arc-shaped seat are fixed on the base plate by bolts, and the first arc-shaped seat and the second arc-shaped seat are locked together by a transverse screw; the first arc-shaped seat and the second arc-shaped seat cooperate to achieve clamping and limiting of a steel spacer; positioning rings are symmetrically fixed on the front and back of the steel spacer, and the positioning rings contact the first arc-shaped seat and the second arc-shaped seat to achieve positioning; the steel spacer is locked to the first arc-shaped seat and the second arc-shaped seat by a pin.

[0006] Preferably, a protrusion is fixed on the first arc-shaped seat, and a groove is provided on the second arc-shaped seat. The groove and the protrusion engage to achieve a positioning function. The first arc-shaped seat and the second arc-shaped seat are locked together by the engagement of the groove and the protrusion, which can ensure the reliability of the first arc-shaped seat and the second arc-shaped seat and make the assembly more convenient.

[0007] Preferably, a fixing box is bolted to the positioning ring on the rear side of the steel spacer, and a slag removal mechanism for cleaning the drill rod surface is installed on the fixing box. Furthermore, a lubrication mechanism for lubricating the steel spacer and the drill rod is installed inside the fixing box. This structure achieves both cleaning of the drill rod surface debris, preventing debris from increasing friction between the drill rod and the steel spacer, and lubrication between the steel spacer and the drill rod, further reducing friction and effectively extending the service life of the drill rod and the steel spacer to better meet actual usage requirements.

[0008] Preferably, the slag removal mechanism includes two partitions fixed in the fixed box, and guide grooves are provided on the opposite side of the two partitions. An installation sleeve is nested on the rear partition. Through the above structure, a basic guarantee can be provided for the rotation guidance of the gear ring, thereby providing a basic guarantee for the normal operation of the device. Furthermore, through the function of the partitions, debris can be isolated to prevent debris from sticking to the gear ring and affecting the normal transmission function.

[0009] Preferably, a number of cleaning brushes are fixed at equal angles on the inner side of the mounting sleeve, and a number of slag discharge holes are opened at equal angles on the mounting sleeve. The slag discharge holes and the cleaning brushes are staggered. By deflecting the mounting sleeve, the cleaning brushes can be driven to deflect at a small angle. The cleaning brushes can clean the debris on the surface of the drill rod, and the slag discharge holes can facilitate the discharge of the cleaned debris.

[0010] Preferably, the mounting sleeve is also fixed with a toothed ring, which is disposed between two guide grooves. A convex shaft is symmetrically fixed on the toothed ring, and several convex shafts are distributed at equal angles about the center of the toothed ring. When the toothed ring is deflected by force, the convex shaft and the guide groove are slidably connected. Through the sliding guiding effect between the convex shaft and the guide groove, the stability of the toothed ring movement can be ensured.

[0011] Preferably, the gear ring meshes with the rack to achieve transmission, and a slide rod is fixed on the rack, with the slide rod and the fixed box being slidably connected. A first spring is also fixed between the rack and the fixed box, and the first spring is symmetrically distributed about the center line of the rack. The drill rod drives the entire device to vibrate, and with the elastic effect of the first spring, the rack can be synchronously subjected to force to move up and down. Combined with the meshing transmission between the rack and the gear ring, it can provide a basic force for the deflection of the gear ring, thereby ensuring the normal operation of the device.

[0012] Preferably, the lubrication mechanism includes a lubricating oil box fixed inside a fixed box, with an inlet port connected to the upper side of the lubricating oil box and an outlet port fixed to the lower side of the lubricating oil box. The outlet port is located directly above the central axis of the steel spacer. Through the above structure, the lubricating oil can be conveniently added and discharged, thereby providing a basic guarantee for the lubrication between the steel spacer and the drill pipe.

[0013] Preferably, the liquid outlet cooperates with the sealing plate to achieve a sealing effect, and a guide rod is fixed on the sealing plate. The guide rod and the bracket are slidably connected. At the same time, the bracket is fixed in the fixed box. Through the sealing effect between the liquid outlet and the sealing plate, the lubricating oil will not drip when the device is not working. When the sealing plate moves, the guide rod and the bracket can guide the sliding action to ensure the stability of the sealing plate movement.

[0014] Preferably, the sealing plate is fixed to one end of the second spring, and the other end of the second spring is fixed inside the fixing box. Through the elastic action of the second spring, a basic guarantee can be provided for the seal between the sealing plate and the liquid outlet.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The first and second arc-shaped seats are assembled by a pin, making disassembly and assembly relatively convenient; moreover, the front and rear drill rod guide devices have the same structure and can be interchanged.

[0017] 1. This novel drill rod guiding device uses an arc-shaped mounting seat to clamp a cylindrical steel spacer, with an internal pin to fix the position of the steel spacer. Finally, it is fixed to the propulsion system by the arc-shaped mounting seat to achieve the effect of constraining the drill rod. Compared with traditional guiding devices, this guiding device is less prone to deformation and displacement, has higher wear resistance, higher consistency of parts, and is easier to manufacture. The two arc-shaped mounting blocks are fitted together by the cooperation of protrusions and grooves and fastened with bolts to ensure the reliability of the clamping and make assembly more convenient. At the same time, the baffle below the arc-shaped mounting seat can effectively prevent gravel from entering the pulley structure below, prevent the pulley rope from getting stuck, and is more adaptable to rock drilling environments.

[0018] 2. This novel drill rod guiding device utilizes the vibration generated during drilling, combined with the elasticity of the first spring and the transmission between the rack and the toothed ring, to deflect the cleaning brushes. Through the deflection of multiple cleaning brushes, debris on the drill rod surface can be cleaned, thereby preventing debris from adhering to the drill rod surface and increasing friction between the drill rod and the steel spacer. This effectively extends the service life of the steel spacer and better meets actual usage requirements.

[0019] 3. This new drill rod guide device, through the vibration generated during drilling and the elastic action of the second spring, can automatically release lubricating oil. This not only achieves lubrication between the drill rod and the steel spacer, further reducing friction between them, but also avoids waste caused by excessive lubricating oil addition, effectively reducing operating costs. Attached Figure Description

[0020] Figure 1 This is a frontal three-dimensional structural diagram of the overall composition of the device of the present invention;

[0021] Figure 2 This is a frontal exploded three-dimensional structural diagram of the first arc-shaped seat, the second arc-shaped seat, and the steel spacer of the present invention;

[0022] Figure 3 This is a frontal cross-sectional three-dimensional structural diagram of the fixing box of the present invention;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the fixing box and the toothed ring of the present invention;

[0024] Figure 5 This is a frontal exploded three-dimensional structural diagram of the slag removal mechanism of the present invention;

[0025] Figure 6 This is a rear-view three-dimensional structural diagram of the toothed ring of the present invention;

[0026] Figure 7 This is a frontal cross-sectional three-dimensional structural diagram of the lubricating oil box of the present invention;

[0027] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point A in the middle.

[0028] In the diagram: 1. Base plate; 2. Baffle; 3. First arc-shaped seat; 301. Protrusion; 4. Second arc-shaped seat; 401. Groove; 5. Steel spacer; 501. Positioning ring; 502. Pin; 6. Fixing box; 7. Slag removal mechanism; 701. Partition plate; 702. Guide groove; 703. Mounting sleeve; 704. Cleaning brush; 705. Slag discharge hole; 706. Gear ring; 707. Protruding shaft; 708. Gear rack; 709. Slide rod; 710. First spring; 8. Lubrication mechanism; 801. Lubricating oil box; 802. Liquid inlet; 803. Liquid outlet; 804. Sealing plate; 805. Guide rod; 806. Bracket; 807. Second spring. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-8 The present invention provides a technical solution: a novel drill pipe guiding device, comprising a base plate 1, on which baffles 2 are symmetrically fixed, and the baffles 2 contact with a first arc-shaped seat 3 and a second arc-shaped seat 4 to achieve positioning. The first arc-shaped seat 3 and the second arc-shaped seat 4 are fixed to the base plate 1 by bolts, and the first arc-shaped seat 3 and the second arc-shaped seat 4 are locked together by a transverse screw. The first arc-shaped seat 3 and the second arc-shaped seat 4 cooperate to achieve clamping and limiting of a steel spacer 5. The steel spacer 5 is symmetrically fixed with positioning rings 501, and the positioning rings 501 contact with the first arc-shaped seat 3 and the second arc-shaped seat 4 to achieve positioning. The steel spacer 5 is locked with the first arc-shaped seat 3 and the second arc-shaped seat 4 by a pin 502.

[0031] A protrusion 301 is fixed on the first arc-shaped seat 3, and a groove 401 is provided on the second arc-shaped seat 4. The groove 401 engages with the protrusion 301 to achieve a positioning function. A fixing box 6 is fixed to the positioning ring 501 on the rear side of the steel spacer 5 by bolts. A slag removal mechanism 7 for cleaning the surface of the drill rod is installed on the fixing box 6, and a lubrication mechanism 8 for lubricating the steel spacer 5 and the drill rod is installed inside the fixing box 6.

[0032] When using this new drill pipe guiding device, such as Figures 1-8 As shown, the entire device is first installed and fixed to the tunneling drilling rig via the base plate 1, and the drill rod passes through the fixing box 6 and the steel spacer 5. At this time, the cleaning brush 704 contacts the drill rod. Through the sliding action between the drill rod and the steel spacer 5 (the drill rod moves from back to front to realize the drilling operation, that is, the fixing box 6 is located on the side away from the drill bit), the drill rod can be guided and positioned to meet the actual drilling requirements.

[0033] The slag removal mechanism 7 includes two partitions 701 fixed inside the fixed box 6, and guide grooves 702 are provided on the opposite side of each partition 701. An installation sleeve 703 is nested on the rear partition 701. Several cleaning brushes 704 are fixed at equal angles inside the installation sleeve 703, and several slag discharge holes 705 are provided at equal angles on the installation sleeve 703, with the slag discharge holes 705 and cleaning brushes 704 staggered. A toothed ring 706 is also fixed on the installation sleeve 703, and the toothed ring 706 is positioned in the two guide grooves 702. Between 2, and the toothed ring 706 is symmetrically fixed with convex shafts 707 front and back, and several convex shafts 707 are distributed at equal angles about the center of the toothed ring 706. The convex shafts 707 and the guide groove 702 are slidably connected; the toothed ring 706 meshes with the rack 708 to realize transmission, and the rack 708 is fixed with a slide rod 709, and the slide rod 709 is slidably connected with the fixed box 6. The rack 708 and the fixed box 6 are also fixed with a first spring 710, and the first spring 710 is symmetrically distributed about the center line of the rack 708.

[0034] During drilling, the drill bit causes significant vibration as it breaks up the rock. This vibration is transmitted through the drill rod to the steel spacer 5 and the fixed box 6, causing them to vibrate. Simultaneously, the rack 708 vibrates under the force of the vibration. Combined with the sliding guide action between the slide rod 709 and the fixed box 6, and the elastic action of the first spring 710, the rack 708 moves up and down under the vibration force. As the rack 708 moves, the meshing transmission between it and the gear ring 706 causes the gear ring 706 to deflect at a certain angle, which, in conjunction with the cam shaft 7... The guiding sliding action between 07 and the guide groove 702 can ensure the stability of the deflection movement of the toothed ring 706. When the toothed ring 706 is deflected under force, it simultaneously drives the mounting sleeve 703 and the cleaning brush 704 to deflect at a certain angle. Through the action of the cleaning brush 704, the debris adhering to the surface of the drill rod can be cleaned. Since the cleaning brush 704 is located behind the steel spacer 5, it can ensure that the debris on the surface of the drill rod is cleaned before entering the steel spacer 5 for guidance. In this way, by cleaning the debris on the surface of the drill rod, the adhesion of the debris on the surface of the drill rod can be avoided, which would increase the friction between the drill rod and the steel spacer 5, and effectively extend the service life of the steel spacer 5.

[0035] The lubrication mechanism 8 includes a lubricating oil box 801 fixed inside the fixed box 6. The lubricating oil box 801 has an inlet 802 that penetrates the fixed box 6 connected to its upper side, and an outlet 803 fixed to its lower side. The outlet 803 is located directly above the central axis of the steel spacer 5. The outlet 803 cooperates with the sealing plate 804 to achieve a sealing effect. A guide rod 805 is fixed on the sealing plate 804, and the guide rod 805 is slidably connected to the bracket 806. The bracket 806 is fixed inside the fixed box 6. The sealing plate 804 is fixed to one end of the second spring 807, and the other end of the second spring 807 is fixed inside the fixed box 6.

[0036] During the use of the device, when the fixed box 6 vibrates during drilling, it synchronously drives the sealing plate 804 inside the lubricating oil box 801 to vibrate. Combined with the sliding action between the guide rod 805 and the bracket 806 and the elastic action of the second spring 807, the sealing plate 804 moves up and down under the vibration force. When the sealing plate 804 moves up and separates from the outlet 803, the lubricating oil in the lubricating oil box 801 drips onto the drill rod through the outlet 803. Since the outlet 803 is located behind the steel spacer 5, the lubricating oil drips onto the drill rod first. The drill rod then cooperates with the steel spacer 5 for guidance. Through the rotation of the drill rod, the lubricating oil on the drill rod can fully contact the steel spacer 5, thereby achieving lubrication between the steel spacer 5 and the drill rod, further reducing the friction between the steel spacer 5 and the drill rod, and thus further extending the service life of the steel spacer 5 to better meet the actual use requirements.

[0037] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A novel drill pipe guiding device, comprising a base plate (1), characterized in that: The base plate (1) is symmetrically fixed with baffles (2) at the front and back, and the baffles (2) contact the first arc-shaped seat (3) and the second arc-shaped seat (4) to achieve positioning. The base plate (1) is fixed with the first arc-shaped seat (3) and the second arc-shaped seat (4) by bolts, and the first arc-shaped seat (3) and the second arc-shaped seat (4) are locked by a transverse screw. The first arc-shaped seat (3) and the second arc-shaped seat (4) cooperate to achieve clamping and limiting of the steel spacer (5). The steel spacer (5) is symmetrically fixed with positioning rings (501) at the front and back, and the positioning rings (501) contact the first arc-shaped seat (3) and the second arc-shaped seat (4) to achieve positioning. The steel spacer (5) is locked with the first arc-shaped seat (3) and the second arc-shaped seat (4) by a pin (502). A fixing box (6) is bolted to the rear positioning ring (501) of the steel spacer (5), and a slag removal mechanism (7) for cleaning the drill rod surface is installed on the fixing box (6), and a lubrication mechanism (8) for lubricating the steel spacer (5) and the drill rod is installed inside the fixing box (6); the slag removal mechanism (7) includes two partitions (701) fixed inside the fixing box (6), and guide grooves (702) are provided on the opposite side of the two partitions (701), and an installation sleeve (703) is nested on the rear partition (701); a number of cleaning brushes (704) are fixed at equal angles inside the installation sleeve (703), and a number of slag discharge holes (705) are opened at equal angles on the installation sleeve (703), and the slag discharge holes (705) are connected to the cleaning brushes (704). The components are staggered; a toothed ring (706) is also fixed on the mounting sleeve (703), and the toothed ring (706) is set between two guide grooves (702). A convex shaft (707) is symmetrically fixed on the toothed ring (706) front and back. At the same time, several convex shafts (707) are distributed at equal angles with respect to the center of the toothed ring (706). The convex shaft (707) is slidably connected to the guide groove (702). The toothed ring (706) meshes with the rack (708) to realize transmission. A slide rod (709) is fixed on the rack (708), and the slide rod (709) is slidably connected to the fixed box (6). A first spring (710) is also fixed between the rack (708) and the fixed box (6), and the first spring (710) is symmetrically distributed about the center line of the rack (708).

2. The novel drill pipe guiding device according to claim 1, characterized in that: The first arc-shaped seat (3) is fixed with a protrusion (301), and the second arc-shaped seat (4) is provided with a groove (401), and the groove (401) engages with the protrusion (301) to achieve positioning.

3. The novel drill pipe guiding device according to claim 1, characterized in that: The lubrication mechanism (8) includes a lubricating oil box (801) fixed in the fixed box (6), and the upper side of the lubricating oil box (801) is connected to an inlet (802) that penetrates the fixed box (6), and the lower side of the lubricating oil box (801) is fixed with an outlet (803), and the outlet (803) is located directly above the central axis of the steel sleeve (5).

4. A novel drill pipe guiding device according to claim 3, characterized in that: The liquid outlet (803) cooperates with the sealing plate (804) to achieve a sealing effect, and a guide rod (805) is fixed on the sealing plate (804). The guide rod (805) and the bracket (806) are slidably connected, and the bracket (806) is fixed in the fixed box (6).

5. A novel drill pipe guiding device according to claim 4, characterized in that: The sealing plate (804) is fixed to one end of the second spring (807), and the other end of the second spring (807) is fixed inside the fixing box (6).

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