Left / right rotation drill rod connecting flange and drill rod drilling device

Abstract

The utility model discloses a left-handed / right-handed drill rod connecting flange and a drill rod drilling device, and the left-handed / right-handed drill rod connecting flange comprises a flange plate; the drill rod connecting sleeve is fixedly connected with the flange plate into an integral structure; a right-handed internal connecting thread section and a left-handed internal connecting thread section are arranged in the drill rod connecting sleeve, the right-handed internal connecting thread section, the left-handed internal connecting thread section and the flange plate are arranged in a manner of sharing the same central axis, the right-handed internal connecting thread section is used for connecting a right-handed drill rod, and the left-handed internal connecting thread section is used for connecting a left-handed drill rod. According to the connecting flange for the left-handed drill rod and the right-handed drill rod, two inner connecting threads with different rotating directions are integrally designed, and the connecting flange for the left-handed drill rod and the right-handed drill rod is arranged at the front end of a drill rod power head, so that the drill rod power head is adaptive to drill rods with left and right rotating directions; the drill rod power head effectively achieves the purpose that one drill rod power head is matched with drill rods in the left-handed rotation direction and the right-handed rotation direction, and has high popularization value.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering equipment technology, specifically to a left / right rotating drill rod connecting flange and a drill rod drilling device. Background Technology

[0002] There are various types of rock drilling rigs on the market. During rock drilling, the drill bit, drill rod, and drill rod power head need to be connected before drilling can proceed. Drill rods, with their numerous specifications and types, are divided into two main categories based on the direction of the thread: left-hand thread drill rods and right-hand thread drill rods. The following problems exist in daily drilling operations:

[0003] The issue of thread compatibility between drill pipe threads and drill pipe power head threads: Drill pipes with the same thread direction but different specifications and drill pipe power heads can be connected using a reducer connector. However, drill pipes with threads of different directions and drill pipe power heads cannot be connected using a reducer connector. This is because during rotary drilling, the thread on one end of the reducer connector will tighten as it is tightened, while the thread on the other end will loosen, eventually causing them to disengage. Therefore, the issue of thread compatibility between drill pipe threads and drill pipe power head threads can only be resolved in the following three ways:

[0004] 1. Weld the left and right threads together to change the thread direction of the drill pipe and meet the matching requirements of the drill pipe thread and the drill pipe power head thread.

[0005] 2. Replace the drill rod power head or drilling rig with a drill rod power head or drilling rig that rotates in the same direction as the drill rod thread.

[0006] 3. Replace the drill rod with a drill rod that rotates in the same direction as the drill rod power head or the drill rig thread.

[0007] The above solutions are time-consuming, labor-intensive, and extremely costly, and also affect the project schedule, failing to meet construction needs. Therefore, this utility model patent is hereby proposed. Utility Model Content

[0008] To solve the above-mentioned technical problems, this utility model provides a left / right-hand rotating drill pipe connecting flange and a drill pipe drilling device, realizing a drill pipe power head that adapts to both left and right rotation directions. Specifically, the following technical solution is adopted:

[0009] A left / right-hand drill pipe connection flange, comprising:

[0010] Flange;

[0011] The drill pipe connecting sleeve is fixedly connected to the flange as an integral structure.

[0012] The drill pipe connecting sleeve has a right-hand internal connecting thread section and a left-hand internal connecting thread section inside. The right-hand internal connecting thread section, the left-hand internal connecting thread section, and the flange are arranged on the same central axis. The right-hand internal connecting thread section is used to connect a right-hand drill pipe, and the left-hand internal connecting thread section is used to connect a left-hand drill pipe.

[0013] As an optional embodiment of this utility model, one end of the drill pipe connecting sleeve is fixedly connected to the flange, and the other end has an assembly port. The right-hand internal connecting thread section is located near the assembly port side of the drill pipe connecting sleeve, and the left-hand internal connecting thread section is located inside the right-hand internal connecting thread section. The inner diameter of the right-hand internal connecting thread section is larger than the inner diameter of the left-hand internal connecting thread section.

[0014] As an optional embodiment of this utility model, the right-hand internal connecting thread section is a tapered threaded hole section, and the inner diameter of the right-hand internal connecting thread section gradually decreases from the assembly port side to the flange side.

[0015] As an optional embodiment of this utility model, a stop step is provided at the connection between the right-hand internal connecting thread segment and the left-hand internal connecting thread segment.

[0016] As an optional embodiment of this utility model, the axial length of the right-hand internal connecting thread segment is greater than or equal to the axial length of the left-hand internal connecting thread segment.

[0017] This utility model also provides a drill rod drilling device with the aforementioned left / right-hand drill rod connecting flange, including a drill rod power head and a drill rod. The flange of the left / right-hand drill rod connecting flange is fixedly installed on the motor shaft of the drill rod power head. When the drill rod is a left-hand external thread drill rod, the left-hand external thread drill rod is threadedly connected to the left-hand internal connecting thread section inside the drill rod connecting sleeve of the left / right-hand drill rod connecting flange; when the drill rod is a right-hand external thread drill rod, the right-hand external thread drill rod is threadedly connected to the right-hand internal connecting thread section inside the drill rod connecting sleeve of the left / right-hand drill rod connecting flange.

[0018] As an optional embodiment of this utility model, a drill rod drilling device of this utility model includes a left-hand threaded connector. One end of the left-hand threaded connector has a left-hand external thread, and the other end has a left-hand internal thread. When the diameter of the left-hand external threaded drill rod does not match the diameter of the left-hand internal connecting thread section inside the drill rod connecting sleeve, the left-hand external thread of the left-hand threaded connector is threadedly connected to the left-hand internal connecting thread section inside the drill rod connecting sleeve, and the left-hand external threaded drill rod is threadedly connected to the left-hand internal thread of the left-hand threaded connector.

[0019] As an optional embodiment of this utility model, the left-hand threaded connector of this utility model includes a left-hand external thread segment, a left-hand internal thread segment, and a connecting segment connecting the left-hand external thread segment and the left-hand internal thread segment. The axial length of the left-hand external thread segment is greater than or equal to the axial length of the left-hand internal connecting thread segment inside the drill pipe connecting sleeve. The axial length of the connecting segment is greater than or equal to the axial length of the right-hand internal connecting thread segment inside the drill pipe connecting sleeve. The outer diameter of the connecting segment is smaller than the inner diameter of the right-hand internal connecting thread segment inside the drill pipe connecting sleeve.

[0020] As an optional embodiment of this utility model, a drill rod drilling device of this utility model includes a right-hand threaded connector. One end of the right-hand threaded connector has a right-hand external thread, and the other end has a right-hand internal thread. When the diameter of the right-hand external threaded drill rod does not match the diameter of the right-hand internal connecting thread section inside the drill rod connecting sleeve, the right-hand external thread of the right-hand threaded connector is threadedly connected to the right-hand internal connecting thread section inside the drill rod connecting sleeve, and the right-hand external threaded drill rod is threadedly connected to the right-hand internal thread of the right-hand threaded connector.

[0021] As an optional embodiment of this utility model, the right-hand threaded connector of this utility model includes a right-hand external thread section, a right-hand internal thread section, and a transition section connecting the right-hand external thread section and the right-hand internal thread section. The axial length of the right-hand external thread section is greater than or equal to the axial length of the right-hand internal connecting thread section inside the drill pipe connecting sleeve.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This utility model discloses a left / right-hand drill pipe connecting flange, which integrates two different helical internal connecting threads into one design. The left / right-hand drill pipe connecting flange is installed at the front end of the drill pipe power head, realizing that one drill pipe power head can adapt to drill pipes with both left and right helical directions. It effectively solves the problem of one drill pipe power head adapting to drill pipes with both left and right helical directions and has high promotional value.

[0024] In addition, when the dimensions of the right-hand drill pipe and the right-hand internal connecting thread section in the drill pipe connecting sleeve are compatible, the right-hand drill pipe can be directly threaded to the right-hand internal connecting thread section in the drill pipe connecting sleeve. When the dimensions of the right-hand drill pipe and the right-hand internal connecting thread section in the drill pipe connecting sleeve are not compatible, the right-hand drill pipe can be threaded to the right-hand internal connecting thread section in the drill pipe connecting sleeve through a right-hand threaded connector.

[0025] Similarly, when the dimensions of the left-hand drill pipe and the left-hand internal connecting thread section in the drill pipe connecting sleeve are compatible, the left-hand drill pipe can be directly threaded to the left-hand internal connecting thread section in the drill pipe connecting sleeve. When the dimensions of the left-hand drill pipe and the left-hand internal connecting thread section in the drill pipe connecting sleeve are not compatible, the left-hand drill pipe can be threaded to the left-hand internal connecting thread section in the drill pipe connecting sleeve through a left-hand threaded connector.

[0026] Therefore, the left / right-hand drill pipe connecting flange of this utility model can realize the installation and adaptation of right-hand drill pipes and left-hand drill pipes with mismatched size specifications through right-hand threaded connectors and left-hand threaded connectors. Attached image description:

[0027] Figure 1 A three-dimensional structural diagram of a left / right rotating drill rod connecting flange according to an embodiment of this utility model;

[0028] Figure 2 A top view of a left / right rotary drill pipe connecting flange according to an embodiment of this utility model;

[0029] Figure 3 This utility model embodiment provides a left / right rotating drill pipe connecting flange along... Figure 2 Cross-sectional view of the GG surface in the middle;

[0030] Figure 4 A cross-sectional structural diagram of the left-hand threaded connector according to an embodiment of this utility model;

[0031] Figure 5 A cross-sectional structural diagram of the right-hand threaded connector according to an embodiment of this utility model. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0033] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0034] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] See Figures 1-3 As shown, a left / right-hand drill pipe connecting flange of this embodiment includes:

[0038] Flange 101;

[0039] The drill pipe connecting sleeve 102 is fixedly connected to the flange 101 as an integral structure.

[0040] The drill pipe connecting sleeve 102 has a right-hand internal connecting thread section 104 and a left-hand internal connecting thread section 105 inside. The right-hand internal connecting thread section 104, the left-hand internal connecting thread section 105, and the flange 101 are arranged on the same central axis. The right-hand internal connecting thread section 104 is used to connect a right-hand drill pipe, and the left-hand internal connecting thread section 105 is used to connect a left-hand drill pipe.

[0041] This embodiment of a left / right-hand drill pipe connecting flange integrates two different helical internal connecting threads into one design. The left / right-hand drill pipe connecting flange is installed at the front end of the drill pipe power head, realizing that one drill pipe power head can adapt to drill pipes with both left and right helical directions. It effectively solves the problem of one drill pipe power head adapting to drill pipes with both left and right helical directions and has high promotional value.

[0042] Specifically, firstly, the right-hand drill pipe is fixedly connected to the right-hand internal threaded section 104. The flange 101 is fixedly installed on the drill pipe power head. The drill bit is installed at the end of the right-hand drill pipe. The drill pipe power head drives the left / right-hand drill pipe connecting flange to rotate. The left / right-hand drill pipe connecting flange drives the right-hand drill pipe and the drill bit to rotate. The drill bit drills into the target body to form a borehole. After drilling is completed, the right-hand drill pipe and the drill bit are pulled out of the borehole. The right-hand drill pipe is removed from the left / right-hand drill pipe connecting flange. The left-hand drill pipe is fixedly connected to the left-hand internal threaded section 105. The drill pipe power head drives the left / right-hand drill pipe connecting flange to rotate. The left / right-hand drill pipe connecting flange drives the left-hand drill pipe to insert into the borehole. At the same time, grout is injected into the borehole to complete the anchoring process of the left-hand drill pipe.

[0043] In addition, when the dimensions of the right-hand drill pipe and the right-hand internal connecting thread section 104 in the drill pipe connecting sleeve 102 are compatible, the right-hand drill pipe can be directly threaded to the right-hand internal connecting thread section 104 in the drill pipe connecting sleeve 102. When the dimensions of the right-hand drill pipe and the right-hand internal connecting thread section 104 in the drill pipe connecting sleeve 102 are not compatible, the right-hand drill pipe can be threaded to the right-hand internal connecting thread section 104 in the drill pipe connecting sleeve 102 through a right-hand threaded connector.

[0044] Similarly, when the dimensions of the left-hand drill pipe and the left-hand internal connecting thread section 105 inside the drill pipe connecting sleeve 102 are compatible, the left-hand drill pipe can be directly threaded to the left-hand internal connecting thread section 105 inside the drill pipe connecting sleeve 102. When the dimensions of the left-hand drill pipe and the left-hand internal connecting thread section 105 inside the drill pipe connecting sleeve 102 are not compatible, the left-hand drill pipe can be threaded to the left-hand internal connecting thread section 105 inside the drill pipe connecting sleeve 102 through a left-hand threaded connector.

[0045] Therefore, the left / right-hand drill pipe connecting flange of this embodiment can realize the installation adaptation of right-hand drill pipes and left-hand drill pipes with mismatched size specifications through right-hand threaded connectors and left-hand threaded connectors.

[0046] As an optional implementation of this embodiment, one end of the drill pipe connecting sleeve 102 is fixedly connected to the flange 101, and the other end has an assembly port 103. The right-hand internal connecting thread section 104 is located near the assembly port 103 of the drill pipe connecting sleeve 102, and the left-hand internal connecting thread section 105 is located inside the right-hand internal connecting thread section 104. The inner diameter of the right-hand internal connecting thread section 104 is larger than the inner diameter of the left-hand internal connecting thread section 105. With this arrangement, the right-hand internal connecting thread section 104 and the left-hand internal connecting thread section 105 will not interfere with each other during use.

[0047] Furthermore, in this embodiment, the right-hand internal connecting thread section 104 is a tapered threaded hole section, and the inner diameter of the right-hand internal connecting thread section 104 gradually decreases along the direction from the assembly port side to the flange 101 side.

[0048] As an optional implementation of this embodiment, a stop step 106 is provided at the connection between the right-hand internal connecting thread section 104 and the left-hand internal connecting thread section 105. In this way, when installing the right-hand drill pipe, the stop step 106 can stop the right-hand drill pipe from being installed in place.

[0049] As an optional implementation of this embodiment, the axial length of the right-hand internal connecting thread segment 104 is greater than or equal to the axial length of the left-hand internal connecting thread segment 105.

[0050] This embodiment also provides a drill pipe drilling device with the left / right-hand drill pipe connecting flange, including a drill pipe power head and a drill pipe. The flange 101 of the left / right-hand drill pipe connecting flange is fixedly installed on the motor shaft of the drill pipe power head. When the drill pipe is a left-hand external thread drill pipe, the left-hand external thread drill pipe is threadedly connected to the left-hand internal connecting thread section 105 inside the drill pipe connecting sleeve 102 of the left / right-hand drill pipe connecting flange; when the drill pipe is a right-hand external thread drill pipe, the right-hand external thread drill pipe is threadedly connected to the right-hand internal connecting thread section 104 inside the drill pipe connecting sleeve 102 of the left / right-hand drill pipe connecting flange.

[0051] This embodiment of a drill pipe drilling device uses a left / right-hand drill pipe connecting flange to connect the drill pipe power head to either a left-hand or right-hand external thread drill pipe. The left / right-hand drill pipe connection method integrates two different internal thread directions into one design. The left / right-hand drill pipe connecting flange is installed at the front end of the drill pipe power head, effectively solving the problem of adapting a single drill pipe power head to both left-hand and right-hand drill pipes, and has high promotional value.

[0052] As an optional implementation method in this embodiment, see Figures 1-3 and Figure 4 As shown, a drill rod drilling device of this embodiment includes a left-hand threaded connector 200. One end of the left-hand threaded connector 200 has a left-hand external thread, and the other end has a left-hand internal thread 204. When the diameter of the left-hand external threaded drill rod does not match the diameter of the left-hand internal connecting thread section 105 inside the drill rod connecting sleeve 102, the left-hand external thread of the left-hand threaded connector is threadedly connected to the left-hand internal connecting thread section 105 inside the drill rod connecting sleeve 102, and the left-hand external threaded drill rod is connected to the left-hand internal thread 204 of the left-hand threaded connector 200.

[0053] In this embodiment of the drill pipe drilling device, when the dimensions of the left-hand drill pipe and the left-hand internal connecting thread section 105 in the drill pipe connecting sleeve 102 do not match, the left-hand drill pipe can be threadedly connected to the left-hand internal connecting thread section 105 in the drill pipe connecting sleeve 102 through the left-hand threaded connector 200.

[0054] Specifically, the left-hand threaded connector 200 in this embodiment includes a left-hand external thread section 201, a left-hand internal thread section 203, and a connecting section 202 connecting the left-hand external thread section 201 and the left-hand internal thread section 203. The axial length of the left-hand external thread section 201 is greater than or equal to the axial length of the left-hand internal connecting thread section 105 inside the drill pipe connecting sleeve 102. The axial length of the connecting section 202 is greater than or equal to the axial length of the right-hand internal connecting thread section 104 inside the drill pipe connecting sleeve 102. The outer diameter of the connecting section 202 is smaller than the inner diameter of the right-hand internal connecting thread section 104 inside the drill pipe connecting sleeve 102. In this way, the left-hand internal connecting thread section 105 inside the drill pipe connecting sleeve 102 will not interfere with the installation of the left-hand threaded connector 200.

[0055] As an optional implementation method in this embodiment, see Figures 1-3 and Figure 5 As shown, a drill rod drilling device of this embodiment includes a right-hand threaded connector 300. One end of the right-hand threaded connector 300 has a right-hand external thread, and the other end has a right-hand internal thread 304. When the diameter of the right-hand external threaded drill rod does not match the diameter of the right-hand internal connecting thread section 104 in the drill rod connecting sleeve 102, the right-hand external thread of the right-hand threaded connector 300 is threadedly connected to the right-hand internal connecting thread section 104 in the drill rod connecting sleeve 102, and the right-hand external threaded drill rod is connected to the right-hand internal thread 304 of the right-hand threaded connector 300.

[0056] In this embodiment of the drill pipe drilling device, when the dimensions of the right-hand drill pipe and the right-hand internal connecting thread section 104 in the drill pipe connecting sleeve 102 do not match, the right-hand drill pipe can be threadedly connected to the right-hand internal connecting thread section 104 in the drill pipe connecting sleeve 102 through the right-hand threaded connector 300.

[0057] Specifically, the right-hand threaded connector 300 in this embodiment includes a right-hand external thread section 301, a right-hand internal thread section 303, and a transition section 302 connecting the right-hand external thread section 301 and the right-hand internal thread section 303. The axial length of the right-hand external thread section 301 is greater than or equal to the axial length of the right-hand internal connecting thread section 104 inside the drill pipe connecting sleeve 102.

[0058] The above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, the present utility model is not limited to the specific embodiments described above. Therefore, any modifications or equivalent substitutions to the present utility model, and all technical solutions and improvements that do not depart from the spirit and scope of the utility model, are covered within the scope of the claims of the present utility model.

Claims

1. A left / right hand drill pipe connection flange characterized by, It includes: Flange; Drill pipe connecting sleeve, fixedly connected with the flange as an integral structure; The drill pipe connecting sleeve has a right-hand internal connecting thread section and a left-hand internal connecting thread section inside, the right-hand internal connecting thread section, the left-hand internal connecting thread section and the flange are coaxial, the right-hand internal connecting thread section is used for connecting a right-hand drill pipe, and the left-hand internal connecting thread section is used for connecting a left-hand drill pipe.

2. A left / right hand drill pipe connection flange according to claim 1, characterized in that, One end of the drill pipe connecting sleeve is fixedly connected with the flange, and the other end is provided with an assembly opening, the right-hand internal connecting thread section is arranged close to the assembly opening side of the drill pipe connecting sleeve, the left-hand internal connecting thread section is arranged inside the right-hand internal connecting thread section, and the inner diameter of the right-hand internal connecting thread section is greater than that of the left-hand internal connecting thread section.

3. A left / right hand drill pipe connection flange as defined in claim 2 wherein, The right-hand internal connecting thread section is a tapered thread hole section, and the inner diameter of the right-hand internal connecting thread section gradually decreases from the assembly opening side to the flange side.

4. A left / right hand drill pipe connection flange as defined in claim 2 wherein, A stop step is arranged at the connection between the right-hand internal connecting thread section and the left-hand internal connecting thread section.

5. A left / right hand drill pipe connection flange as defined in claim 1 wherein, The axial length of the right-hand internal connecting thread section is greater than or equal to that of the left-hand internal connecting thread section.

6. A drilling assembly having left / right hand drill pipe connection flanges as claimed in any one of claims 1 to 5, characterised in that, The flange of the left / right-hand drill pipe connecting flange is fixedly installed on the motor shaft of the drill pipe power head, when the drill pipe is a left-hand external thread drill pipe, the left-hand external thread drill pipe is threadedly connected with the left-hand internal connecting thread section in the drill pipe connecting sleeve of the left / right-hand drill pipe connecting flange; when the drill pipe is a right-hand external thread drill pipe, the right-hand external thread drill pipe is threadedly connected with the right-hand internal connecting thread section in the drill pipe connecting sleeve of the left / right-hand drill pipe connecting flange.

7. A device for drilling with a drill rod according to claim 6, characterized in that The left-hand thread connecting piece has a left-hand external thread at one end and a left-hand internal thread at the other end, when the diameter of the left-hand external thread drill pipe does not match that of the left-hand internal connecting thread section in the drill pipe connecting sleeve, the left-hand external thread of the left-hand thread connecting piece is threadedly connected with the left-hand internal connecting thread section in the drill pipe connecting sleeve, and the left-hand external thread drill pipe is threadedly connected with the left-hand internal thread of the left-hand thread connecting piece.

8. A drill rod drilling apparatus as claimed in claim 7 wherein, The left-hand thread connecting piece includes a left-hand external thread section, a left-hand internal thread section and a connecting section connecting the left-hand external thread section and the left-hand internal thread section, the axial length of the left-hand external thread section is greater than or equal to that of the left-hand internal connecting thread section in the drill pipe connecting sleeve, the axial length of the connecting section is greater than or equal to that of the right-hand internal connecting thread section in the drill pipe connecting sleeve, and the outer diameter of the connecting section is smaller than the inner diameter of the right-hand internal connecting thread section in the drill pipe connecting sleeve.

9. A drill rod drilling apparatus as defined in claim 6 wherein, The right-hand thread connecting piece has a right-hand external thread at one end and a right-hand internal thread at the other end, when the diameter of the right-hand external thread drill pipe does not match that of the right-hand internal connecting thread section in the drill pipe connecting sleeve, the right-hand external thread of the right-hand thread connecting piece is threadedly connected with the right-hand internal connecting thread section in the drill pipe connecting sleeve, and the right-hand external thread drill pipe is threadedly connected with the right-hand internal thread of the right-hand thread connecting piece.

10. A drill rod drilling apparatus as claimed in claim 9 wherein, The right-hand threaded connection includes a right-hand external thread segment, a right-hand internal thread segment, and a transition segment connecting the right-hand external thread segment and the right-hand internal thread segment, the axial length of the right-hand external thread segment being greater than or equal to the axial length of the right-hand internal thread segment within the drill pipe connection sleeve.

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