CN216043580U - Assembled initiative drilling rod - Google Patents

Abstract

The utility model relates to an assembled driving drill rod, and belongs to the technical field of coal mine hydraulic drilling machines. The drill rod comprises a rod body, a joint connected with one end of the rod body through threads, and a sliding sleeve sleeved outside the rod body and the joint and connected with the rod body and the joint through tooth meshing; the sliding sleeve and the rod body are fixed through screws, and the sliding sleeve is prevented from moving along the axial direction. The assembled initiative drilling rod solves the technical problems that in the prior art, joint threads are easy to lose efficacy, the drilling rod replacement time is long, the machining cost is high, and waste is large.

Description

Assembled initiative drilling rod

Technical Field

The utility model belongs to the technical field of coal mine hydraulic drilling machines, and relates to an assembled driving drill rod.

Background

The driving drill rod is mainly used for transmitting torque and feeding force in a mining hydraulic drilling machine and is matched with a clamp holder to complete the connection and the disassembly of the drill rod. In practical application, the drill rod is required to be screwed in a forward direction and unscrewed in a reverse direction once when the drill rod is added, the application frequency of the operation is high, the actual use working condition is complex, the joint thread of the driving drill rod is easy to lose efficacy, and the drill rod is a main quick-wear part in a drilling machine. At present, the driving drill rod is of an integral structure, when a thread fails, the whole driving drill rod needs to be replaced, the replacement time is long, the processing cost is high, and the waste is large; and the traditional bolt connection is adopted, so that the space requirement and the strength requirement of the active drill rod cannot be met.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model aims to provide an assembled active drill rod to solve the technical problems of long drill rod replacement time, high machining cost and great waste caused by easy failure of joint threads in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme:

an assembled active drill rod comprises a rod body, a joint connected with one end of the rod body through threads, and a sliding sleeve sleeved outside the rod body and the joint and connected with the rod body and the joint through tooth meshing; the sliding sleeve and the rod body are fixed through screws, and the sliding sleeve is prevented from moving along the axial direction.

Further, the body of rod all is equipped with a plurality of corresponding external teeth with the continuous one end of joint, the sliding sleeve internal surface be equipped with the body of rod with connect external tooth internal tooth that cooperatees.

Further, be equipped with the boss on the body of rod, the boss has a plurality of along the through-hole of circumference equipartition along the axial direction of the body of rod, the sliding sleeve terminal surface be equipped with the screw of through-hole one-to-one, the screw passes the through-hole is connected with the screw on the sliding sleeve for the axial fixity of the body of rod and sliding sleeve.

Further, the joint is provided with an axial channel, an internal thread matched with the rod body is arranged in the axial channel, and an external thread connected with the drill rod is arranged at one end, far away from the rod body, of the joint.

Further, a sealing groove is formed in one end, connected with the joint, of the rod body, and a sealing ring is installed in the sealing groove.

Further, the one end of the body of rod far away from the joint is fixed and is equipped with the installation tooth, the addendum circle diameter of installation tooth is greater than the body of rod diameter, the transmission of rotary load and axial load is accomplished in the cooperation of installation tooth and rig.

Further, the body of rod is equipped with the axial passageway with joint axial passageway complex for carry the flush fluid.

The utility model has the beneficial effects that:

adopt split type equipment initiative drilling rod, adopt the mode equipment of vulnerable screwed joint portion assembly, adopt the tooth sliding sleeve simultaneously with the body of rod and joint cooperation, the body of rod adopts threaded connection transmission to creep into the moment of torsion with the joint, utilize the sliding sleeve tooth to bear the transmission of moment of torsion when reversing the moment of torsion and realizing dismantling the drilling rod, avoid the long-time load-bearing of profile of tooth, it is integrative to link the sliding sleeve with the body of rod with the screw simultaneously, prevent the axial displacement of sliding sleeve, satisfy the requirement of initiative drilling rod, after the joint became invalid like this, only need change the joint, it is convenient, fast, and low in cost, high efficiency, also simplify initiative drilling rod processing simultaneously, also be convenient for do the intensive processing technology to the joint.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the utility model, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a fabricated kelly;

FIG. 2 is a cross-sectional view of a fabricated kelly;

FIG. 3 is a schematic view of a body of an assembled kelly;

FIG. 4 is a cross-sectional view of a shank of an assembled kelly;

FIG. 5 is a view taken along line A-A of FIG. 4;

FIG. 6 is a schematic view of a slip sleeve of a fabricated kelly;

FIG. 7 is a schematic view of a sub of a fabricated kelly joint;

FIG. 8 is a cross-sectional view of a joint of a fabricated kelly.

Reference numerals: the connecting structure comprises a rod body 1, a screw 2, a sliding sleeve 3, a sealing ring 4, a joint 5, a channel 11, mounting teeth 12, a connecting hole 13, bearing teeth 14, threads 15, a sealing groove 16, a screw hole 31, internal teeth 32, internal threads 51, external teeth 52 and threads 53.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the utility model only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the utility model thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

Referring to fig. 1-8, an assembled active drill rod includes a rod body 1, a joint 5 connected with one end of the rod body 1 through a thread 15, and a sliding sleeve 3 sleeved outside the rod body 1 and the joint 5 and connected through teeth; the sliding sleeve 3 is fixed with the rod body 1 through the screw 2, and the sliding sleeve 3 is prevented from moving along the axial direction. The centers of the rod body 1 and the joint 5 are provided with matched axial channels 11 for conveying flushing liquid.

The body of rod 1 one end is equipped with in proper order and connects 5 continuous external screw thread 15, bear tooth 14 along a plurality of circumference equipartition with sliding sleeve 3 cooperation, the boss of laminating mutually with the terminal surface that bears tooth 14, the boss is opened along the axial direction of the body of rod 1 has connecting hole 13 of a plurality of along the circumference equipartition, connecting hole 13 is the through-hole, be used for passing screw 2 with the body of rod 1 with 3 axial fixity of sliding sleeve, the body of rod 1 is located to open with the external screw thread 15 that connects 5 one end mutually has seal groove 16, install sealing washer 4 in the seal groove 16, be used for the sealed of junction flush fluid. The end, far away from the joint 5, of the rod body 1 is fixedly provided with an installation tooth 12, the diameter of the addendum circle of the installation tooth 12 is larger than that of the rod body 1, the installation tooth 12 is matched with a drilling machine to complete the transmission of rotary load and axial load, wherein the end face of the installation tooth 12 bears the axial load, and the circumferential load is transmitted through the tooth profile.

The axial channel of the joint 5 is internally provided with an internal thread 51 matched with the external thread 15 of the rod body 1 to complete the connection of the joint 5 and the rod body 1 and transmit drilling load (thrust and torque), one end of the joint 5 containing the internal thread 51 is provided with a plurality of external teeth 52 matched with the sliding sleeve 3, the external teeth are uniformly distributed along the outer circumference of the joint 5 and transmit shackle load to realize the disassembly of a drill rod, and the other end of the joint 5 is provided with a thread 53 connected with the drill rod and used for the additional connection of the drill rod.

The inner surface of the sliding sleeve 3 is provided with inner teeth 32 matched with the bearing teeth 14 of the rod body 1 and the outer teeth 52 of the joint 5, the end surface of the sliding sleeve 3 is provided with screw holes 31 in one-to-one correspondence with the connecting holes 13 on the boss, and the sliding sleeve 3 is fixed by matching with the screws 2.

Disassembly and assembly of the joint 5

When the drilling machine is in a working state, the driving drill rod is arranged on the drilling machine, and the joint 5 is connected with the rod body 1. When needing to change and connecting 5, pull down screw 2 earlier, press from both sides tight sliding sleeve 3 with the rig holder, the holder drives the body of rod 1 and moves backward, makes sliding sleeve 3 move internal tooth 32 and the bearing tooth 14 of the body of rod 1 and part, then makes the body of rod 1 reversal, realizes connecting 5 and the complete separation of the body of rod 1, takes off sliding sleeve 3 at last. When a new joint 5 needs to be assembled, the joint 5 is manually screwed on the rod body 1; sleeving the sliding sleeve 3 on the outer teeth 52 of the joint 5; positioning the sliding sleeve 3 at the clamping position of the clamp holder, advancing the rod body 1, rotating the rod body 1 to enable the rod body thread 15 to be screwed with the joint internal thread 51, and enabling the internal teeth 32 of the sliding sleeve 3 to be aligned with the bearing teeth 14 of the rod body 1 and the external teeth 52 of the joint 5; and (3) allowing the clamp holder to clamp the sliding sleeve 3, continuously allowing the rod body 1 to move forwards, allowing the sliding sleeve 3 to slide into the rod body 1 to be meshed with the tooth form of the rod body, and finally connecting the screw 2 to finish the assembly of the active drill rod.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims (7)

1. An assembled kelly, its characterized in that: comprises a rod body, a joint connected with one end of the rod body through threads, and a sliding sleeve sleeved outside the rod body and the joint and connected through teeth in a meshing manner; the sliding sleeve and the rod body are fixed through screws, and the sliding sleeve is prevented from moving along the axial direction.

2. The fabricated kelly of claim 1, wherein: the body of rod all is equipped with a plurality of corresponding external teeth with the continuous one end of joint, the sliding sleeve internal surface is equipped with the body of rod and joint external tooth internal tooth that cooperatees.

3. The fabricated kelly of claim 1, wherein: the novel sliding sleeve is characterized in that a boss is arranged on the rod body, a plurality of through holes are uniformly distributed along the circumference of the boss in the axial direction of the rod body, screw holes corresponding to the through holes one to one are formed in the end face of the sliding sleeve, and screws penetrate through the through holes and are connected with the screw holes in the sliding sleeve and used for axially fixing the rod body and the sliding sleeve.

4. The fabricated kelly of claim 1, wherein: the joint is provided with an axial channel, an internal thread matched with the rod body is arranged in the axial channel, and an external thread connected with the drill rod is arranged at one end, far away from the rod body, of the joint.

5. The fabricated kelly of claim 1, wherein: the rod body is opened with the one end that connects and is had the seal groove, install the sealing washer in the seal groove.

6. The fabricated kelly of claim 1, wherein: the end, far away from the joint, of the rod body is fixedly provided with mounting teeth, the diameter of the addendum circle of the mounting teeth is larger than that of the rod body, and the mounting teeth are matched with a drilling machine to complete the transmission of rotary load and axial load.

7. The fabricated kelly of claim 4, wherein: the rod body is provided with an axial channel matched with the joint axial channel and used for conveying flushing liquid.

Images