Drill rod of raise boring machine

Abstract

The utility model relates to the technical field of construction equipment, in particular to a raise boring machine drill rod which comprises a drill rod body, a plurality of installation grooves arranged in an annular array mode are formed in one end of a rotating rod, all the installation grooves are communicated with a containing groove, a locking device is rotationally connected into the containing groove, and a reset spring is fixedly arranged between the locking device and the drill rod body. And a mounting part is arranged at the other end of the rotating rod, extends into the mounting groove of the other drill rod and enters the locking device so as to connect the two drill rods. The locking device comprises a bottom plate rotationally connected into the containing groove, a side plate is fixedly connected to one side of the bottom plate, a plurality of annularly-arranged top plates are fixedly connected to the side plate, open grooves are formed between the adjacent top plates, the number of the open grooves is in one-to-one correspondence with the number of the mounting grooves, and the top plates, the side plate and the bottom plate form a locking cavity. One end of the bottom plate is fixedly connected with a cover plate, and the cover plate is fixedly connected with the reset spring. The installation efficiency of the drill rod can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction equipment, and particularly relates to a drill pipe of a raise boring machine. Background Art

[0002] A raise boring machine is an advanced equipment for underground engineering construction. The working principle of the raise boring machine is usually to first drill the drill pipe into the bottom tunnel, install a drill bit in the bottom tunnel, and then drill in the reverse direction from bottom to top. It has high safety, reduces the working time of workers in dangerous environments, and reduces the accident risk, and has wide applications in the fields of mine construction and hydropower engineering.

[0003] To meet the requirements of opening wells at different heights, the drill pipes of the raise boring machine adopt detachable connections. When the drill pipe is drilled into the ground, the rotating rods are continuously installed to achieve deeper well openings. However, the connection structure of the existing rotating rods is too complex and cumbersome, which is not convenient to use and affects the drilling efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a drill pipe of a raise boring machine to solve the above deficiencies in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A drill pipe of a raise boring machine includes a drill pipe. One end of the rotating rod is provided with a plurality of mounting grooves arranged in a circular array. Each mounting groove communicates with a placement groove. A locking device is rotatably connected in the placement groove. A return spring is fixedly arranged between the locking device and the drill pipe. The other end of the rotating rod is provided with a mounting portion. The mounting portion extends into the mounting groove of another drill pipe and enters the locking device to connect the two drill pipes.

[0007] Further, the locking device includes a bottom plate rotatably connected in the placement groove. One side of the bottom plate is fixedly connected with a side plate. A plurality of annularly arranged top plates are fixedly connected to the side plate. A slot is formed between adjacent top plates. The number of slots corresponds to the number of mounting grooves one by one. The top plate, the side plate and the bottom plate form a locking cavity. One end of the bottom plate is fixedly connected with a cover plate. The cover plate is fixedly connected with the return spring.

[0008] Further, the mounting portion includes a plurality of mounting blocks corresponding to the mounting grooves. Each mounting block is fixedly connected with a clamping rod. A first inclined surface is further arranged on the clamping rod. The first inclined surface abuts against the top plate so that the clamping rod extends into the locking cavity to lock the drill pipe.

[0009] Further, it further includes an unlocking component. The unlocking component includes an unlocking rod slidably connected to the drill pipe. A convex block is fixedly connected to the end of the unlocking rod. A second inclined surface is provided on the convex block, and the second inclined surface abuts against the stopper to cause the stopper to rotate and release the locking of the rotating rod.

[0010] Further, one end of the bottom plate is fixedly connected with an inclined block, and the inclined block is adapted to the second inclined surface.

[0011] Further, a baffle is connected to the unlocking rod, and the baffle is slidably connected inside the rotating rod.

[0012] Further, a compression spring is provided between the baffle and the drill pipe, and the compression spring causes the baffle to be at one end away from the stopper.

[0013] In the above technical solution, the beneficial effects of a drill pipe of a raise boring machine provided by the present utility model are as follows:

[0014] By providing the stopper and the installation part on the drill pipe, when connecting the rotating rod, the installation part is inserted into the installation groove and enters the stopper. The stopper forms a constraint on the installation part in the vertical direction, and the installation groove forms a constraint on the other five degrees of freedom of the installation part, thereby quickly completing the connection of two drill pipes and effectively improving the drilling efficiency of the drilling machine.

[0015] It should be understood that the foregoing general description and the following detailed description are merely exemplary and explanatory and are not intended to limit the present disclosure.

[0016] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a complete disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the installation part provided by an embodiment of the present utility model;

[0020] Figure 3 It is a schematic cross-sectional view of the drill pipe provided by an embodiment of the present utility model;

[0021] Figure 4Schematic structural diagram of the stopper provided by the embodiment of the present utility model;

[0022] Figure 5 Schematic structural diagram of the unlocking assembly provided by the embodiment of the present utility model.

[0023] Explanation of reference numerals:

[0024] 1. Drill pipe; 11. Installation groove; 12. Placing groove;

[0025] 2. Stopper; 21. Bottom plate; 22. Side plate; 23. Top plate; 24. Slotted opening; 25. Locking cavity; 26. Cover plate;

[0026] 3. Return spring;

[0027] 4. Installation part; 41. Installation block; 42. Clamping rod; 43. First inclined surface;

[0028] 5. Unlocking assembly; 51. Unlocking rod; 52. Convex block; 53. Second inclined surface; 54. Inclined block; 55. Baffle; 56. Compression spring. Detailed implementation manners

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Apparently, the described embodiments are some but not all of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0030] Please refer to Figures 1-5 , a raise boring machine drill pipe 1, including a drill pipe 1. One end of the rotating rod is provided with a plurality of installation grooves 11 arranged in a circumferential array. Each of the installation grooves 11 communicates with a placing groove 12. A stopper 2 is rotatably connected in the placing groove 12. A return spring 3 is fixedly arranged between the stopper 2 and the drill pipe 1; the other end of the rotating rod is provided with an installation part 4. The installation part 4 extends into the installation groove 11 of another drill pipe 1 and enters the stopper 2 to connect the two drill pipes 1.

[0031] By providing the stopper 2 and the installation part 4 on the drill pipe 1, when connecting the rotating rod, the installation part 4 is extended into the installation groove 11 and enters the stopper 2. The stopper 2 forms a vertical constraint on the installation part 4, and the installation groove 11 forms constraints on the other five degrees of freedom of the installation part 4, so as to quickly complete the connection of the two drill pipes 1 and effectively improve the drilling efficiency of the drilling rig.

[0032] Further, the stopper 2 includes a bottom plate 21 rotatably connected to the placement groove 12. One side of the bottom plate 21 is fixedly connected to a side plate 22. A plurality of annularly arranged top plates 23 are fixedly connected to the side plate 22. A slot 24 is formed between adjacent top plates 23. The number of slots 24 corresponds to the number of installation grooves 11 one by one. The top plates 23, side plate 22, and bottom plate 21 form a locking cavity 25. One end of the bottom plate 21 is fixedly connected to a cover plate 26, and the cover plate 26 is fixedly connected to the return spring 3.

[0033] Further, the installation part 4 includes a plurality of installation blocks 41 corresponding to the installation grooves 11. A clamping rod 42 is fixedly connected to each installation block 41. A first inclined surface 43 is further provided on the clamping rod 42. The first inclined surface 43 abuts against the top plate 23 so that the clamping rod 42 extends into the locking cavity 25 to lock the drill rod 1.

[0034] Further, an unlocking assembly 5 is further included. The unlocking assembly 5 includes an unlocking rod 51 slidably connected to the drill rod 1. A convex block 52 is fixedly connected to the end of the unlocking rod 51. A second inclined surface 53 is provided on the convex block 52. The second inclined surface 53 abuts against the stopper 2 so that the stopper 2 rotates to release the locking of the rotating rod.

[0035] Further, an inclined block 54 is fixedly connected to one end of the bottom plate 21, and the inclined block 54 is adapted to the second inclined surface 53.

[0036] Further, a baffle 55 is connected to the unlocking rod 51, and the baffle 55 is slidably connected inside the rotating rod.

[0037] Further, a compression spring 56 is provided between the baffle 55 and the drill rod 1, and the compression spring 56 positions the baffle 55 at one end away from the stopper 2.

[0038] Working principle:

[0039] When connecting the rotating rod, during the process of the installation block 41 extending into the installation groove 11, the first inclined surface 43 on the clamping rod 42 abuts against the top plate 23, causing the stopper 2 to rotate. After the clamping rod 42 enters the locking cavity 25 inside the stopper 2 from the slot 24, under the action of the return spring 3, the top plate 23 locks the clamping rod 42, thus completing the locking of the drill rod 1.

[0040] When unlocking the drill rod 1, press the unlocking rod 51. The movement of the unlocking rod 51 drives the movement of the convex block 52. The movement of the convex block 52 through the cooperation of the second inclined surface 53 and the inclined block 54 causes the stopper 2 to rotate, and the top plate 23 releases the locking of the clamping rod 42. After the installation part 4 is removed, the unlocking rod 51 automatically resets under the action of the compression spring 56.

[0041] Only some exemplary embodiments of the present utility model have been described by way of illustration. Without doubt, for those of ordinary skill in the art, various different ways can be used to modify the described embodiments without departing from the spirit and scope of the present utility model. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. A raise boring machine drill pipe (1), comprising a drill pipe (1), characterized in that: One end of the drill rod (1) is provided with a plurality of mounting grooves (11) arranged in a ring array, each mounting groove (11) is communicated with a placement groove (12), a locker (2) is rotatably connected in the placement groove (12), and a return spring (3) is fixedly arranged between the locker (2) and the drill rod (1); The other end of the drill rod (1) is provided with a mounting portion (4), and the mounting portion (4) extends into the mounting groove (11) of the other drill rod (1) and enters the locker (2) to connect the two drill rods (1).

2. A raise boring machine drill pipe (1) according to claim 1, characterized in that: The locker (2) comprises a bottom plate (21) rotatably connected to the placement groove (12); a side plate (22) is fixedly connected to one side of the bottom plate (21); a plurality of top plates (23) arranged in an annular shape are fixedly connected to the side plate (22); slots (24) are formed between adjacent top plates (23); the number of the slots (24) corresponds to the number of the installation grooves (11); the top plate (23), the side plate (22) and the bottom plate (21) constitute a locking cavity (25); a cover plate (26) is fixedly connected to one end of the bottom plate (21); and the cover plate (26) is fixedly connected to the return spring (3).

3. A raise boring machine drill pipe (1) according to claim 2, characterized in that: The mounting portion (4) comprises a plurality of mounting blocks (41) corresponding to the mounting grooves (11), each of the mounting blocks (41) being fixedly connected to a clamping rod (42), the clamping rod (42) being further provided with a first inclined surface (43), the first inclined surface (43) being in contact with the top plate (23) so that the clamping rod (42) extends into the locking cavity (25) to lock the drill rod (1).

4. A raise boring machine drill pipe (1) according to claim 2, characterized in that: The invention also comprises an unlocking assembly (5), wherein the unlocking assembly (5) comprises an unlocking rod (51) slidably connected to the drill rod (1), a protrusion (52) being fixedly connected to the end of the unlocking rod (51), a second inclined surface (53) being provided on the protrusion (52), and the second inclined surface (53) abutting against the locker (2) so that the locker (2) rotates to release the lock of the rotating rod.

5. A raise boring machine drill pipe (1) according to claim 4, characterized in that: One end of the bottom plate (21) is fixedly connected with an inclined block (54), and the inclined block (54) is adapted to the second inclined surface (53).

6. A raise boring machine drill pipe (1) according to claim 4, characterized in that: The unlocking rod (51) is connected with a baffle (55), and the baffle (55) is slidably connected in the rotating rod.

7. A raise boring machine drill pipe (1) according to claim 6, characterized in that: A compression spring (56) is provided between the baffle plate (55) and the drill rod (1), and the compression spring (56) enables the baffle plate (55) to be located at an end away from the locker (2).

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