CN219299231U

CN219299231U - Quick connecting device for hollow drill rod

Info

Publication number: CN219299231U
Application number: CN202320571468.0U
Authority: CN
Inventors: 杨宏斌
Original assignee: Huangshi Hongyu Mechanical Equipment Co ltd
Current assignee: Huangshi Hongyu Mechanical Equipment Co ltd
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-07-04
Anticipated expiration: 2033-03-22

Abstract

The utility model relates to the technical field of drill rod connection, and provides a hollow drill rod quick connecting device which comprises a drill rod connector and a connecting drill rod, wherein a cavity is formed in the drill rod connector; the utility model has compact and reasonable structural design and convenient installation and use, can rapidly realize accurate butt joint installation on the drill rod and the drill bit, enables the fixing ring to clamp the connecting drill rod through the anti-skid rotary drill rod connector, and utilizes a plurality of fixing balls uniformly distributed on the inner side wall of the fixing ring to increase the contact friction force and stably limit the connecting drill rod, thereby improving the connection stability of the device and the connecting drill rod; and dismantle and maintain conveniently, be connected mostly detachable threaded connection between each structure, its connection steadiness is high, and is fixed effectual, has stronger practicality, can greatly improve work efficiency.

Description

Quick connecting device for hollow drill rod

Technical Field

The utility model relates to the technical field of drill rod connection, in particular to a quick connecting device for a hollow drill rod.

Background

The drill rod is a steel pipe with threads at the tail part or a rod body with blades and flanges. For connecting surface equipment and drilling and grinding equipment or hole bottom devices positioned at the bottom end of a well. The purpose of the drill rod is to transport drilling mud (earth) to the drill bit and to raise, lower or rotate the hole bottom device together with the drill bit. The drill pipe must be able to withstand significant internal and external pressure, twisting, bending and vibration. The drill rod can be used for multiple times in the construction processes of investigation, foundation construction, oil gas development and refining. The conventional drill rod connection adopts the connection of a wire joint, a flange and a bolt, and has complex operation and low speed.

The prior patent (publication number: CN 202022237167.3) discloses a quick connecting device for inserting and butting between two drill rods, wherein the two drill rods comprise a first drill rod and a second drill rod, and the quick connecting device is characterized in that: the second drill rod is provided with a butt joint hole, and the shape and the size of the butt joint hole are matched with the shape and the size of the outer contour of the first drill rod in a proper way; the outer wall of the first drill rod is provided with an L-shaped bulge, a butt joint hole of the second drill rod is provided with an L-shaped groove matched with the L-shaped bulge, the width of a vertical groove of the L-shaped groove is larger than the horizontal width of the L-shaped bulge, and the L-shaped bulge can be clamped in the L-shaped groove and can be inserted into a key pin through a rotating gap between the L-shaped bulge and the L-shaped bulge, so that the insertion butt joint between the two drill rods is realized.

However, the following problems are found in the implementation related art: the method comprises the following steps: in the connecting process of the drill rods, the device does not stably limit the drill rods, lacks protection of the drill rods and is quick in clamping type assembly mode, but the drill rods are easy to damage; and two,: the device can only connect the drill rod and can not connect the drill bit, so that the drill bit is required to be installed independently in the using process, the practicality is poor, the application range is small, certain use limitations exist, and design improvement is urgently needed.

Disclosure of Invention

The utility model provides a quick connecting device for a hollow drill rod, which solves the problems in the related art.

The technical scheme of the utility model is as follows: the utility model provides a hollow drill rod quick connecting device, includes the drilling rod connector and connects the drilling rod, the inside of drilling rod connector is equipped with the cavity, connect the one end grafting of drilling rod in the inside of drilling rod connector, the other end spiro union that the drilling rod connector kept away from and connects the drilling rod is equipped with the sleeve, telescopic one end is connected with drill bit connecting device.

Preferably, the drill rod connector is inserted with an anti-skid pattern arranged on the outer wall of one end connected with the drill rod, and a fixed ring is sleeved inside the drill rod connector.

Preferably, a plurality of fixed balls which are arranged at equal intervals are uniformly distributed on the inner side wall of the fixed ring, and a plurality of fixed balls are semicircular cambered surface metal balls.

Preferably, the outer wall of the sleeve is connected with a connecting nut in a threaded manner, and the outer wall of one end of the sleeve is sleeved with a limiting ring.

Preferably, one end of the connecting drill rod penetrates through the inside of the sleeve and is in contact with the outer surfaces of the fixing balls.

Preferably, an external thread matched with the connecting nut is arranged on the outer wall of one end of the drill bit connecting device, and the drill bit connecting device is in threaded connection with the connecting nut on the sleeve through the external thread.

Preferably, one end of the drill bit connecting device far away from the external thread is sequentially connected with a plurality of thread sleeves through a fixing nut in a threaded manner.

Preferably, the inner side walls of the thread sleeve heads are provided with internal threads, and the inner diameter sizes of the thread sleeve heads are sequentially increased.

Preferably, the limiting ring is an O-shaped rubber gasket, and the size and the dimension are matched with the inner diameter dimension of the drill bit connecting device.

The working principle and the beneficial effects of the utility model are as follows:

1. in the present utility model; the one end quick connect that will connect the drilling rod through the drilling rod connector can be quick to make the solid fixed ring press from both sides tight with connecting the drilling rod through the rotatory drilling rod connector of anti-skidding line, and utilize a plurality of fixed balls of equipartition on the solid fixed ring inner wall to increase contact friction, stabilize spacing to connecting the drilling rod, thereby improved the device and connect the connection steadiness of drilling rod.

2. In the present utility model; through set up the screw thread pullover that a plurality of internal diameter sizes of group increase gradually in drill bit connecting device one end, can increase or decrement the quantity of screw thread pullover according to the in-service use demand to the drill bit of the different model sizes of quick installation of being convenient for improves its suitability.

3. In the present utility model; through add the spacing ring in drill bit connecting device's inside one end and the junction of connecting the drilling rod, do benefit to the connection leakproofness that improves the device, and play fine guard action to the drilling rod, do benefit to improve equipment life and stability in the use.

4. In the present utility model; the device compact structure is reasonable, installation convenient to use, can be quick implement accurate butt joint installation to drilling rod and drill bit, and dismantle and maintain conveniently, be connected between each structure and be mostly detachable threaded connection, its connection steadiness is high, and is fixed effectual, has stronger practicality, can greatly improve work efficiency.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a schematic diagram of the overall structure of the device according to the present utility model;

FIG. 2 is a schematic view of a drill pipe connector according to the present utility model;

FIG. 3 is a schematic view of a bit connecting device according to the present utility model;

FIG. 4 is a schematic view of a sleeve according to the present utility model;

in the figure: 1. a drill pipe connector; 2. connecting a drill rod; 3. a sleeve; 4. a drill bit connecting device; 5. anti-skid lines; 6. a fixing ring; 7. a fixed ball; 8. a coupling nut; 9. an external thread; 10. a fixing nut; 11. a thread sleeve head; 12. an internal thread; 13. and a limiting ring.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 2, 3 and 4, the present utility model provides a technical solution: the utility model provides a hollow drill rod quick connecting device, includes drilling rod connector 1 and connects drilling rod 2, and the inside of drilling rod connector 1 is equipped with the cavity, and the one end of connecting drilling rod 2 is pegged graft in the inside of drilling rod connector 1, and the other end spiro union that drilling rod connector 1 kept away from connecting drilling rod 2 is equipped with sleeve 3, and sleeve 3's one end is connected with drill bit connecting device 4.

In this embodiment, the drilling rod connector 1 is pegged graft and is equipped with anti-skidding line 5 on the one end outer wall of connecting drilling rod 2, the inside movable sleeve of drilling rod connector 1 is equipped with solid fixed ring 6, the equipartition has a plurality of equidistant interval arrangement's fixed ball 7 on gu fixed ring 6's the inside wall, a plurality of fixed balls 7 are semicircle arc metal globules, threaded connection has coupling nut 8 on the outer wall of sleeve 3, and the cover is equipped with spacing ring 13 on the one end outer wall of sleeve 3, the inside of sleeve 3 is run through to the one end of connecting drilling rod 2, and with the surface contact of a plurality of fixed balls 7, one end quick connect of connecting drilling rod 2 through drilling rod connector 1, and make solid fixed ring 6 press from both sides connecting drilling rod 2 tightly through anti-skidding line 5 rotatory drilling rod connector 1, and utilize a plurality of fixed balls 7 increase contact friction force of equipartition on solid fixed ring 6 inside wall, carry out spacingly to connecting drilling rod 2, thereby the firm device is connected with connecting drilling rod 2's firm.

Wherein, be equipped with on the one end outer wall of drill bit connecting device 4 with coupling nut 8 identical external screw thread 9, drill bit connecting device 4 passes through external screw thread 9 and coupling nut 8 threaded connection on the sleeve 3, through design detachable threaded connection, be convenient for carry out the installation of drill bit connecting device 4 or dismantle, improve work efficiency.

In this embodiment, the one end that drill bit connecting device 4 kept away from external screw thread 9 has a plurality of thread pullies 11 through fixation nut 10 threaded connection in proper order, all is equipped with internal thread 12 on the inside wall of thread pullies 11, and the internal diameter size of a plurality of thread pullies 11 increases gradually, through setting up the thread pullies 11 that a plurality of internal diameter sizes increase gradually, can increase or decrement the quantity of thread pullies 11 according to the actual use demand to be convenient for install the drill bit of different model sizes fast, improve its suitability.

The limiting ring 13 is an O-shaped rubber gasket, the size of the limiting ring is identical with the inner diameter of the drill bit connecting device 4, and the limiting ring 13 is additionally arranged at the joint of one end of the inner part of the drill bit connecting device 4 and the connecting drill rod 2, so that the connecting tightness of the device is improved, the drill rod is well protected, and the service life of equipment and the stability of the equipment in the use process are improved.

The working principle and the using flow of the utility model are as follows: the device comprises a drill rod connector 1 and a connecting drill rod 2, wherein one end of the connecting drill rod 2 can be quickly connected through the drill rod connector 1 when in use, the connecting drill rod 2 is clamped by a fixed ring 6 by rotating the drill rod connector 1 through anti-skid threads 5, and the connecting drill rod 2 is stably limited by utilizing a plurality of fixed balls 7 uniformly distributed on the inner side wall of the fixed ring 6 to increase the contact friction force, so that the connecting stability of the device and the connecting drill rod 2 is improved; when the drill bit is installed, the drill bit connecting device 4 at the other end of the drill rod connector 1 can be used for quickly installing or detaching the drill bit, and the number of the thread sleeves 11 can be increased or decreased according to actual use requirements by arranging a plurality of groups of thread sleeves 11 with sequentially increased inner diameter sizes, so that the drill bits with different model sizes can be quickly installed, and the applicability of the drill bit is improved; the device compact structure is reasonable, installation convenient to use, can be quick implement accurate butt joint installation to drilling rod and drill bit, and dismantle and maintain conveniently, be connected between each structure and be mostly detachable threaded connection, its connection steadiness is high, and is fixed effectual, has stronger practicality, can greatly improve work efficiency.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a hollow drill rod quick connecting device, includes drilling rod connector (1) and connects drilling rod (2), its characterized in that: the inside of drilling rod connector (1) is equipped with the cavity, connect the inside of drilling rod connector (1) is pegged graft to the one end of drilling rod (2), the other end spiro union that drilling rod connector (1) kept away from and connects drilling rod (2) is equipped with sleeve (3), the one end of sleeve (3) is connected with drill bit connecting device (4).

2. A hollow drill rod quick connect device as claimed in claim 1 wherein: the anti-slip drill rod connector is characterized in that the drill rod connector (1) is inserted and connected with an outer wall of one end of the drill rod (2), anti-slip threads (5) are arranged on the outer wall of the end, and a fixing ring (6) is movably sleeved in the drill rod connector (1).

3. A hollow drill rod quick connect device as claimed in claim 2 wherein: the inner side wall of the fixed ring (6) is uniformly provided with a plurality of fixed balls (7) which are arranged at equal intervals, and the fixed balls (7) are semicircular cambered surface metal balls.

4. A hollow drill rod quick connect device as claimed in claim 1 wherein: the outer wall of the sleeve (3) is in threaded connection with a connecting nut (8), and a limiting ring (13) is sleeved on the outer wall of one end of the sleeve (3).

5. A hollow drill rod quick connect device as claimed in claim 1 wherein: one end of the connecting drill rod (2) penetrates through the inside of the sleeve (3) and is in contact with the outer surfaces of the fixing balls (7).

6. A hollow drill rod quick connect device as claimed in claim 1 wherein: an external thread (9) which is matched with the connecting nut (8) is arranged on the outer wall of one end of the drill bit connecting device (4), and the drill bit connecting device (4) is in threaded connection with the connecting nut (8) on the sleeve (3) through the external thread (9).

7. The quick connect device of claim 6, wherein: one end of the drill bit connecting device (4) far away from the external thread (9) is sequentially connected with a plurality of thread sleeves (11) in a threaded manner through a fixing nut (10).

8. The quick connect device of claim 7, wherein: internal threads (12) are arranged on the inner side walls of the thread sleeve heads (11), and the inner diameter sizes of the thread sleeve heads (11) are sequentially increased.

9. The quick connect device of claim 4, wherein: the limiting ring (13) is an O-shaped rubber gasket, and the size and the dimension are matched with the inner diameter dimension of the drill bit connecting device (4).