CN207144905U - One kind probing is with dragging for bits device - Google Patents

Abstract

The utility model relates to a debris catcher for drilling, which belongs to the technical field of drilling equipment. It is characterized in that it includes the scraping tube (6) and the scraper (10) on the lower side of the scrapping tube (6), the scraping tube (6) is cylindrical, and the top of the scrapping tube (6) is used to connect with the drill pipe (1) connected, the scraper (10) is set along the radial direction of the scraping tube (6), the length of the scraper (10) along the radial direction of the scraping tube (6) is less than or equal to the outer diameter of the scraping tube (6), and the scraper (10) is inclined or arc-shaped with the lower end bent toward the front side of the cuttings tube (6) in the direction of rotation, and the bottom of the cuttings tube (6) is provided with a stop for cuttings stuck in the cuttings tube (6). crumb mechanism. The cuttings scooper for drilling can scoop out the cuttings from the underground coal mine borehole, has high scraping efficiency, solves the problem of excessive drilling cuttings and difficulty in scraping, and fundamentally solves the accidents of buried drills and muddled drills.

Description

A kind of debris catcher for drilling

technical field

The utility model relates to a debris catcher for drilling, which belongs to the technical field of drilling equipment.

Background technique

Underground coal mine construction geological and structural drilling is a relatively difficult drilling, especially for areas with complex geological structures, it is difficult to discharge rock dust when the hole depth reaches a certain level. Due to the limitation of underground roadway conditions and geological conditions, drilling with mud flushing fluid, firstly, the roadway space is small and the mud circulation is limited, and secondly, the mud is easily diluted and washed away by high-pressure water. Drilling with clean water, in the process of downhole construction, after the borehole exceeds 100m, cuttings often cannot be washed out, but sink and float up and down in the borehole, and finally settle. In the past, the shakeout tube was installed after the core tube. Due to the low pressure of the clean water and the limited ability to carry the cuttings, it was difficult to remove the cuttings. Once the cuttings are deposited over 0.5m, it is easy to cause buried drilling and paste. drill accident.

Contents of the invention

The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art, to provide a drilling debris scavenger capable of pulling out the cuttings in the coal mine and avoiding the occurrence of accidents of buried drilling and sticky drilling.

The technical solution adopted by the utility model to solve the technical problem is: the scraper for drilling, which is characterized in that it includes a scraper tube and a scraper on the lower side of the scraper tube, the scraper tube is cylindrical, and the scraper tube The top is used to connect with the drill pipe, the scraper is set along the radial direction of the scraper tube, the length of the scraper along the radial direction of the scraper tube is less than or equal to the outer diameter of the scraper tube, and the lower end of the scraper is bent toward the front side of the scraper tube in the direction of rotation It is inclined or arc-shaped, and the bottom of the cuttings tube is provided with a chip blocking mechanism for holding cuttings in the cuttings tube.

Preferably, a connecting pipe is coaxially provided on the lower side of the scraping pipe, the outer diameter of the connecting pipe is equal to that of the scrapping pipe, the connecting pipe and the scrapping pipe are detachably connected, and the connecting pipe is a cylinder with a closed lower end , The chip blocking mechanism and the scraper are all set on the lower side of the connecting pipe.

Preferably, the debris retaining mechanism includes a base plate and a baffle plate, the base plate is a disc with the same outer diameter as the debris removal tube, the base plate is arranged on the lower side of the debris removal tube, the scraper is arranged on the lower side of the bottom plate, and the bottom plate is provided with a chip feeder The chip inlet is set on the front side of the scraper along the rotation direction of the scraper tube. One side of the baffle is rotated and installed on the bottom plate, and the other side is placed on the scraper to close the chip inlet.

Preferably, a counterweight is provided on the side of the baffle close to the scraper.

Preferably, the upper part of the scraper is inclined from top to bottom and gradually bends toward the front side of the scraping tube rotation direction, and the lower part of the scraper is arranged horizontally.

Preferably, the upper part of the scoop pipe is provided with a drain hole.

Preferably, an installation cylinder is provided on the upper side of the debris removal tube, the lower part of the installation cylinder is detachably connected to the debris removal tube, and the upper part of the installation cylinder is provided with a mounting hole connected to the drill pipe.

Preferably, a plurality of flushing holes are arranged at intervals around the outer wall in the middle of the installation cylinder, and the flushing holes communicate with the installation holes.

Compared with the prior art, the beneficial effects of the utility model are:

1. The scraper of this drilling chip scraper can rotate with the scraping tube and scrape the cuttings into the scraping tube. Cuttings are fished out from the coal mine underground borehole, with high cuttings removal efficiency, which solves the problem of excessive cuttings and difficulty in removing cuttings, and fundamentally solves the accidents of buried drills and muddled drills.

2. Both the scraper and the chip retaining mechanism are set on the lower side of the connecting pipe, and the connecting pipe is detachably installed on the lower side of the scraping pipe, so as to facilitate the discharge of the cuttings in the scraping pipe.

3. One side of the baffle is rotated and installed on the bottom plate, and the other side is placed on the scraper and the chip inlet is closed, so as to cooperate with the bottom plate to close the lower end of the chip removal pipe. When the chip removal work is carried out, the cuttings push The baffle swings upward to open the chip inlet, so that the cuttings enter the chip removal tube. When the cuttings stop, the cuttings will cooperate with the scraper to close the chip inlet under its own weight. The structure is simple and not easy to damage .

4. The counterweight can ensure that the baffle closes the chip inlet and prevent the baffle from opening automatically when picking up chips.

5. The scraper is an arc whose lower side is bent toward the front side of the scraping tube in the direction of rotation, so that the scraper can generate an upward force on the cuttings when rotating, so that the cuttings enter the scraping tube along the chip inlet.

6. The drain hole is convenient for the water in the debris removal pipe to flow out. When the debris removal pipe is filled with cuttings, the excess water will be discharged from the drain hole.

7. The installation barrel can not only close the upper end of the scraping pipe, but also be convenient to connect with the drill pipe. The flushing hole is connected with the drill pipe through the installation hole. The clear water can be turned off during normal scrapping, and the clear water can be turned on when there is an obstacle. The drill pipe and the flushing hole are punched, and the drill is rotated to lift the drill, so that the scraper can be lifted out of the hole conveniently.

Description of drawings

Fig. 1 is a front half-sectional schematic diagram of a debris catcher for drilling.

FIG. 2 is a schematic cross-sectional view along A-A direction in FIG. 1 .

Fig. 3 is a right side cross-sectional schematic diagram of a debris catcher for drilling.

In the figure: 1, drill pipe 2, installation barrel 3, flushing hole 4, connecting barrel 5, drain hole 6, debris removal pipe 7, bottom plate 8, hinge 9, baffle plate 10, scraper 11, counterweight 12, connection Tube.

Detailed ways

Fig. 1 ~ 3 is the preferred embodiment of the present utility model, below in conjunction with accompanying drawing 1 ~ 3 the utility model is described further.

A scraper for drilling, comprising a scraper tube 6 and a scraper 10 on the lower side of the scraper tube 6, the scraper tube 6 is cylindrical, the top of the scraper tube 6 is used to connect with the drill pipe 1, and the scraper 10 is The radial setting of the scraping tube 6, the length of the scraper 10 along the radial direction of the scraping tube 6 is less than or equal to the outer diameter of the scraping tube 6, and the scraper 10 is inclined or bent at the front side in the direction of rotation of the scraping tube 6 at the lower end. Arc-shaped, the bottom of the debris removal tube 6 is provided with a chip blocking mechanism for locking cuttings in the debris removal tube 6 . The scraper 10 of the chip scraper for drilling can rotate with the scrap tube 6 and scrape the debris into the debris tube 6 , and the debris blocking mechanism can block the debris scraped into the debris tube 6 in the debris tube 6 , so that the cuttings can be fished out from the underground of the coal mine, and the cuttings removal efficiency is high, which solves the problem of excessive drilling cuttings and difficulty in removing cuttings, and fundamentally solves the accidents of buried drills and muddled drills.

The utility model will be further described below in conjunction with specific embodiments, yet those who are familiar with the art should understand that the detailed description provided in conjunction with the accompanying drawings is for better explanation, and the structure of the utility model must exceed these limited implementations For example, some equivalent replacement solutions or common means will not be described in detail herein, but still belong to the protection scope of this application.

As shown in Figures 1 to 3: the debris removal tube 6 is a vertical circular tube, the upper and lower ends of the debris removal tube 6 are open, and the upper side of the debris removal tube 6 is coaxially provided with an installation tube 2, and Mounting cartridge 2 detachable connections. The outer diameter of installation cylinder 2 is equal to the outer diameter of scraping pipe 6 . The bottom of the mounting tube 2 is coaxially provided with a connecting tube 4, the outer wall of the connecting tube 4 is provided with threads, and the outer diameter of the connecting tube 4 is equal to the inner diameter of the scraping pipe 6 top, and the upper part of the scraping tube 6 inner wall is provided with the connecting tube. Cooperating threads, the connecting cylinder 4 extends into the scraps pipe 6 from the top and is detachably connected with the scraps pipe 6 by threads.

The top of installation cylinder 2 is coaxially provided with installation hole, and installation hole inwall is provided with the screw thread that matches with drill rod 1, and the lower end of drill rod 1 stretches in the installation hole and is connected detachably with installation cylinder 2 by thread. The middle part of the installation cylinder 2 is provided with a radial flushing hole 3, and a plurality of flushing holes 3 are arranged at intervals around the axis of the installation cylinder 2. The outer end of the flushing hole 3 is arranged on the outer wall of the installation cylinder 2, and the inner end of the flushing hole 3 It communicates with the bottom of the installation hole, so that the flushing hole 3 communicates with the inner cavity of the drill pipe 1. The clear water can be closed when the chip catcher is working, and it can only be opened when it encounters obstacles. The clean water passes through the drill pipe 1 and the flushing hole 3 Rinse, and cooperate with the rotation of the crumb fisher to lift the drill. The middle and upper part of the scraping pipe 6 is provided with a drain hole 5, and the drain hole 5 is a through hole arranged on the wall of the scraping pipe 6, and a plurality of drain holes 5 are arranged at intervals around the axis of the scraping pipe 6. After being filled with cuttings in the debris pipe 6, excess water will flow out from the weep hole 5 naturally.

The lower side of the scraping pipe 6 is coaxially provided with a connecting pipe 12, the upper end of the connecting pipe is detachably connected with the lower end of the scraping pipe 6, and the outer diameter of the connecting pipe 12 is equal to the outer diameter of the scraping pipe 6. The outer wall of the lower part of the scraping pipe 6 is provided with threads, and the inner wall of the upper end of the connecting pipe 12 is provided with a thread matched with the thread of the lower end of the scraping pipe 6, and the lower end of the scraping pipe 6 extends into the scraping pipe 6 from the upper end of the connecting pipe 12 , and is detachably connected with the connecting pipe 12 by threads. Both the scraper 10 and the chip retaining mechanism are arranged on the lower side of the connecting pipe 12 .

The chip retaining mechanism includes a bottom plate 7 and a baffle plate 9, the bottom plate 7 is a disk with a diameter equal to the outer diameter of the connecting pipe 12, the bottom plate 7 is coaxially installed on the lower side of the connecting pipe 12 and closes the lower opening of the connecting pipe 12. The upper bottom plate 7 of the scraper 10 is fixedly connected, and the upper part of the scraper 10 is gradually bent toward the front side of the scraping tube 6 in the direction of rotation from top to bottom, and the lower part is horizontal. The scraper 10 is arranged along the radial direction of the connecting pipe 12 , and the length of the scraper 10 along the radial direction of the connecting pipe 12 is equal to the outer diameter of the connecting pipe 12 . The bottom plate 7 on the front side of the scraper 10 along the rotation direction of the scraping pipe 6 is provided with chip inlets, and the chip inlets are arranged at intervals along the radial direction of the bottom plate 7 . One side of the scraper 10 is rotatably mounted on the bottom plate 7 through the hinge 8, and the other side is carried on the scraper 10, and cooperates with the scraper 10 to close the chip inlet. The scraper 10 rotates with the scraping pipe 6, because the scraper 10 has an upward driving force on the cuttings, and makes the cuttings enter into the scraping pipe 6 along the chip inlet, and the cuttings will push the baffle plate 9 when entering the chip inlet Swing, and open the chip inlet, after the cuttings enter the scraping pipe 6, the baffle plate 9 swings downward under the action of gravity and cooperates with the scraper 10 again to close the chip inlet, so as to prevent the cuttings from entering the chip Mouth drop.

A counterweight 11 is provided on the side of the baffle 9 close to the scraper 10 , the counterweight 11 is cylindrical, and the length of the counterweight 11 is equal to the length of the baffle 9 along the radial direction of the bottom plate 7 . Therefore, it can be ensured that the baffle plate 9 can swing under the action of gravity to cooperate with the scraper 10 to close the chip inlet, and it can also prevent the baffle plate 9 from opening the chip inlet under the action of water. The chip scooper for drilling is easy to assemble and easy to operate. It can work by using the drill pipe 1. When the chip scooper is lifted out, the connecting pipe 12 and the scoop tube 6 can be disassembled, and the debris can be poured out of the scoop tube. 6. Easy to operate.

The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model in other forms. Any skilled person who is familiar with this profession may use the technical content disclosed above to change or remodel it into an equivalent change. Equivalent embodiment. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solution of the utility model still belong to the protection scope of the technical solution of the utility model.

Claims (8)

1. A scraper for drilling, characterized in that it includes a scraper tube (6) and a scraper (10) on the lower side of the scraper tube (6), the scraper tube (6) is cylindrical, and the scraper tube The top of (6) is used to connect with the drill pipe (1), and the scraper (10) is set along the radial direction of the scraping tube (6), and the length of the scraper (10) along the radial direction of the scraping tube (6) is less than or equal to that of the scraper The outer diameter of the chip tube (6), the scraper (10) is inclined or arc-shaped with the lower end bent toward the front side of the chip tube (6) in the direction of rotation, and the bottom of the chip tube (6) is provided with a Chip retaining mechanism inside the scraper tube (6). 2. The chip scooper for drilling according to claim 1, characterized in that a connecting pipe (12) is coaxially arranged on the lower side of the scrap scooping pipe (6), and the outer diameter of the connecting tube (12) is the same as that of the scraping scoop. The outer diameters of the chip tubes (6) are equal, and the connecting tube (12) is detachably connected to the chip picking tube (6). The connecting tube (12) is a cylinder with a closed lower end. tube (12) underside. 3. The chip catcher for drilling according to claim 1 or 2, characterized in that: the chip retaining mechanism includes a bottom plate (7) and a baffle (9), and the bottom plate (7) is connected to the chip removal pipe (6 ) discs with the same outer diameter, the bottom plate (7) is set on the lower side of the scraping tube (6), the scraper (10) is set on the lower side of the bottom plate (7), the bottom plate (7) is provided with a chip inlet, and the chip inlet It is arranged on the front side of the scraper (10) along the rotation direction of the scraping tube (6), one side of the baffle (9) is rotated and installed on the bottom plate (7), and the other side is placed on the scraper (10) and feeds the scraps The mouth is closed. 4. The debris fisher for drilling according to claim 3, characterized in that: a counterweight (11) is provided on the side of the baffle (9) close to the scraper (10). 5. The scraper for drilling according to claim 3, characterized in that: the upper part of the scraper (10) is inclined from top to bottom and gradually bends to the front side of the scraper tube (6) in the direction of rotation, and the scraper (10) Lower level setting. 6. The chip scooper for drilling according to claim 1, characterized in that: a drain hole (5) is provided on the upper part of the scoop tube (6). 7. The debris fisher for drilling according to claim 1, characterized in that: an installation tube (2) is provided on the upper side of the debris removal tube (6), and the lower part of the installation tube (2) is connected with the debris removal tube (6) Detachable connection, the upper part of the installation cylinder (2) is provided with an installation hole connected with the drill pipe (1). 8. The debris fisher for drilling according to claim 7, characterized in that: the middle part of the installation cylinder (2) is surrounded by a plurality of flushing holes (3) at intervals around the outer wall, and the flushing holes (3) and the installation holes connected.