CN215565740U

CN215565740U - Pore-forming device for karst cave treatment

Info

Publication number: CN215565740U
Application number: CN202121833115.0U
Authority: CN
Inventors: 王忠付; 吴高中; 毛锋; 焦正; 田祥盛; 谷加宁; 宋俊磊; 李林
Original assignee: Fifth Engineering Co Ltd of China Railway 16th Bureau Group Co Ltd
Current assignee: Fifth Engineering Co Ltd of China Railway 16th Bureau Group Co Ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-01-18
Anticipated expiration: 2031-08-06

Abstract

The utility model discloses a pore-forming device for karst cave treatment, which comprises a rotating rod and a drill bit, wherein the top end of the drill bit is fixedly connected with a threaded rod, the threaded rod is in threaded connection with the rotating rod, two first sliding grooves are formed in the drill bit, a first sliding rod is slidably connected in the first sliding grooves, the lower end of the first sliding rod is fixedly connected with a fixed rod, the other end of the fixed rod is fixedly connected with a gear wheel, an elastic shifting piece is fixedly connected to the inner side of each first sliding groove, a first square groove is formed in the position of the tail end of the elastic shifting piece in the first sliding groove, a second sliding groove is formed in the inner side of the first square groove, a second square groove is formed in the deep part of the second sliding groove, and a signal transmitter is fixedly arranged in the second sliding groove. According to the utility model, the signal transmitter inside the drill bit can transmit the feedback signal to the ground control part when the drill bit meets the great resistance, so that the wear rate of the drill bit is greatly reduced.

Description

Pore-forming device for karst cave treatment

Technical Field

The utility model relates to the field of rotary drilling hole forming, in particular to a hole forming device for karst cave treatment.

Background

The pore-forming device for karst cave treatment is mainly used for carrying out corresponding pore-forming treatment on an underground karst cave encountered during underground excavation, and comprises a rotary drilling pore-forming technology, wherein the rotary drilling pore-forming technology is characterized in that under the condition of mud retaining wall, a rotary disc or a power head on a rotary drilling rig drives a telescopic drill rod and a drill bit at the bottom of the drill rod to rotate, cutting tools on the bottom end and the side opening of a drilling bucket are used for cutting rock soil, and the cut rock soil enters the drilling bucket from the opening. After the drilling bucket is filled with drill cuttings, the drill bit is lifted to the hole opening through the telescopic drill rod, the bottom is automatically opened, soil is unloaded, and then the drilling bucket is lowered to the bottom of the hole to continuously drill. Repeating the steps until the designed hole depth is drilled.

Prior patent (CN112539027A) discloses a dig pore-forming soon and prevent hole device that collapses, includes: a drill stem; the rotary drilling bit is fixedly connected to one suspended end of the drill rod; further comprising: one end of the connecting rod is connected to a drill rod on the rear side of the rotary drilling bit, the other end of the connecting rod is fixedly connected with a first rotating shaft, the first rotating shaft is parallel to the center line of the drill rod, and the connecting rod is driven by the drill rod to rotate; the pressing roller is rotatably connected to the first rotating shaft, and the maximum distance between the side surface of the pressing roller and the central axis of the drill rod is larger than the diameter of the rotary drilling bit. The problem that in the prior art, the hole is prone to collapse and cannot be used due to the limitation of soil conditions or the cost is high and the environment is not protected is solved.

The disadvantage of this patent is the lack of protection for the drill bit, which is subject to extremely high wear rates.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a pore-forming device for karst cave treatment.

In order to achieve the purpose, the utility model adopts the following technical scheme: a pore-forming device for karst cave treatment comprises a rotating rod and a drill bit, wherein the top end of the drill bit is fixedly connected with a threaded rod, the drill bit is rotatably connected with the rotating rod through the threaded rod, two gear wheels are arranged at the bottom end of the drill bit, two first sliding grooves are formed in the bottom end of the drill bit, a first sliding rod is slidably connected in the first sliding grooves, a first convex block is fixedly connected to the rod body of the first sliding rod, and an elastic shifting piece is fixedly connected to the inner wall of each first sliding groove and the position, close to the first convex block, of the first sliding groove;

the inner wall of the first sliding groove is close to the tail end of the elastic shifting piece, a first square groove is formed, a second sliding groove is formed in the inner side of the first square groove, a second sliding rod is connected inside the second sliding groove in a sliding mode, one end of the second sliding rod, close to the first sliding rod, is fixedly connected with a transmission supporting plate, the other end of the second sliding rod is fixedly connected with a metal sheet, a second square groove is formed in the inner side of the second sliding groove, the inner wall, close to one end of the second square groove, of the second sliding groove is symmetrically and fixedly connected with two metal shifting pieces, a signal transmitter is fixedly connected inside the second square groove, the first sliding rod is fixedly connected with a fixing rod, close to the outer end of the first sliding groove, and the lower end of the fixing rod is fixedly connected with the gear wheel.

As a further description of the above technical solution: the roller bearing is arranged in the cone, the tail end of one end of the fixing rod is fixedly connected with a bushing, and the roller bearing in the cone is fixedly connected with the fixing rod through the bushing.

As a further description of the above technical solution: the first sliding rod upper end fixedly connected with nose bar, first sliding tray inner wall just is close to nose bar department fixedly connected with third lug, the internal diameter of third lug is less than the internal diameter of nose bar.

As a further description of the above technical solution: a first spring is sleeved on the first sliding rod between the third lug and the first lug.

As a further description of the above technical solution: and a second lug is fixedly connected to the rod body of the second sliding rod, a fourth lug is fixedly connected to the position, close to the second lug, of the inner wall of the second sliding groove, and the inner diameter of the fourth lug is smaller than that of the second lug.

As a further description of the above technical solution: and a second spring is sleeved on the second sliding rod between the fourth lug and the second lug.

As a further description of the above technical solution: the signal emitter is connected with the metal plectrum through a lead.

The utility model has the following beneficial effects:

1: in the utility model, a signal transmitter is arranged in the drill bit and is connected with the metal plectrum connected in the second sliding groove through a wire, when the roller cone at the bottom of the drill bit rotates and meets great resistance, the metal sheet connected on the second sliding rod and the metal plectrum connected in the second sliding groove can touch, at the moment, the signal transmitter can transmit a feedback signal to the ground control part, the ground control part can stop the drill bit and provide a corresponding processing scheme, and the wear rate of the roller cone at the drill bit part is greatly reduced.

2: according to the utility model, the first spring is sleeved on the first sliding rod connected with the bottom of the cone, and when the cone works, the first sliding rod has certain relative displacement under the elastic force feedback of the first spring, so that a certain damping effect is achieved.

Drawings

FIG. 1 is an external elevation view of a hole-forming device for cavern processing in accordance with the present invention;

FIG. 2 is a front sectional view of a drill bit of the hole forming device for karst cave treatment according to the present invention;

FIG. 3 is an enlarged view of FIG. 2 at B;

fig. 4 is an enlarged schematic view of a portion a of fig. 2.

Illustration of the drawings:

1. rotating the rod; 2. a threaded rod; 3. a drill bit; 4. a cone; 5. fixing the rod; 6. a bushing; 7. a roller bearing; 8. a first sliding groove; 9. a nose bar; 10. a first spring; 11. an elastic shifting piece; 12. a transmission supporting plate; 13. a second sliding groove; 14. a second slide bar; 15. a second bump; 16. a metal sheet; 17. A metal plectrum; 18. a first square groove; 19. a signal transmitter; 20. a wire; 21. a first bump; 22. a first slide bar; 23. a second square groove; 24. a third bump; 25. a fourth bump; 26. a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, one embodiment of the present invention is provided: the utility model provides a pore-forming device is used in solution cavity processing, includes dwang 1 and drill bit 3, the top fixedly connected with threaded rod 2 of drill bit 3, and drill bit 3 passes through threaded

rod

2 and 1 swivelling joint of dwang and fixes, and the bottom symmetry of drill bit 3 is equipped with two gear wheels 4, and the gear wheel is responsible for drilling.

The inside of 3 bottoms of drill bits is equipped with two first sliding tray 8, the inside sliding connection of first sliding tray 8 has first slide bar 22, the upper end fixedly connected with nose bar 9 of first slide bar 22, the first lug 21 of fixedly connected with on the pole body of first slide bar 22, the elastic plectrum 11 of fixedly connected with in first sliding tray 8 inner wall and near first lug 21 department, the inboard fixedly connected with third lug 24 that just is close to nose bar 9 department of first sliding tray 8, the cover is equipped with first spring 10 on the first slide bar 22 between third lug 24 and first lug 21, the lower extreme fixedly connected with dead lever 5 of first slide bar 22, third lug 24 fixes the normal work position in first sliding tray 8 with first slide bar 22 through nose bar 9 and first spring 10.

A first square groove 18 is formed in the inner wall of the first sliding groove 8 and close to the tail end of the elastic shifting piece 11, a second sliding groove 13 is formed in the inner side of the first square groove 18, a second sliding rod 14 is connected to the inner side of the second sliding groove 13 in a sliding mode, a second protruding block 15 is fixedly connected to the rod body of the second sliding rod 14, a fourth protruding block 25 is fixedly connected to the position, close to the second protruding block 15, of the inner wall of the second sliding groove 13, a transmission supporting plate 12 is fixedly connected to one end, close to the first sliding rod 22, of the second sliding rod 14, a second spring 26 is sleeved on the rod body of the second sliding rod 14 between the transmission supporting plate 12 and the fourth protruding block 25, a metal piece 16 is fixedly connected to the other end of the second sliding rod 14, and the fourth protruding block 25 fixes the second sliding rod at a working position in the second sliding groove 13 through the second protruding block 15 and the second spring 26.

Second square groove 23 has been seted up to second sliding tray 13 inboard, two metal plectrum 17 of symmetry and fixedly connected with on the inner wall that second sliding tray 13 is close to second square groove 23 one end, the inside fixedly connected with signal transmitter 19 of second square groove 23, signal transmitter 19 passes through wire 20 and is connected with metal plectrum 17, when second slide bar 14 was in the alert position, sheetmetal 16 contacted with two metal plectrums 17, signal transmitter will work, to ground control portion transmission feedback signal.

The roller bearing 7 is fixedly connected to the inner portion of the cone 4, the bushing 6 is fixedly connected to the lower end of the fixing rod 5, the bushing 6 is fixedly connected with the roller bearing 7, and the cone 4 can freely rotate to grind and drill holes through the roller bearing 7 fixedly connected to the inner portion.

The first sliding rod 22 connected with the bottom of the cone 4 is sleeved with the first spring 10, and when the cone 4 works, the first sliding rod 22 has certain relative displacement under the elastic force feedback of the first spring 10, so that a certain damping effect is achieved.

The working principle is as follows: when the pore-forming device is operated, the first sliding rod 22 and the second sliding rod 14 are in normal working positions, when the bit 3 encounters great resistance to cause the roller cone 4 of the bit 3 to begin to be worn obviously, the roller cone 4 is influenced by acting force and is rotated to an alert position from the working position, at this time, the fixed rod 5 fixedly connected with the roller cone 4 drives the first sliding rod 22 to compress the first spring 10 sleeved on the rod body and move forwards, the first lug 21 fixedly connected on the first sliding rod 22 extrudes the elastic shifting piece 11 fixedly connected on the inner side of the first sliding groove 8, further, pressure is caused to the transmission supporting plate 12 fixedly connected with the lower end of the second sliding rod 14, the second sliding rod 14 influenced by the force compresses the second spring 26 sleeved on the rod body and moves towards the direction of the second square groove 23, at this time, the metal sheet 16 fixedly connected at the upper end of the second sliding rod 14 is contacted with the two metal shifting pieces 17 fixedly connected on the inner wall of the second sliding groove 13, the signal transmitter 19 connected by the wire 20 transmits a feedback signal, and the ground control stops the operation of the drill bit 3 and provides a corresponding processing scheme, thereby greatly reducing the wear rate of the drill bit 3.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.

Claims

1. A pore-forming device for karst cave treatment comprises a rotating rod (1) and a drill bit (3), wherein a threaded rod (2) is fixedly connected to the top end of the drill bit (3), the drill bit (3) is rotatably connected with the rotating rod (1) through the threaded rod (2), two gear wheels (4) are arranged at the bottom end of the drill bit (3), two first sliding grooves (8) are formed in the bottom end of the drill bit (3), a first sliding rod (22) is slidably connected to the inside of each first sliding groove (8), a first convex block (21) is fixedly connected to the rod body of the first sliding rod (22), and an elastic shifting piece (11) is fixedly connected to the inner wall of each first sliding groove (8) and a position close to the corresponding first convex block (21);

a first square groove (18) is formed in the inner wall of the first sliding groove (8) and close to the tail end of the elastic shifting piece (11), a second sliding groove (13) is formed in the inner side of the first square groove (18), a second sliding rod (14) is connected in the second sliding groove (13) in a sliding mode, one end, close to the first sliding rod (22), of the second sliding rod (14) is fixedly connected with a transmission supporting plate (12), the other end of the second sliding rod (14) is fixedly connected with a metal piece (16), a second square groove (23) is formed in the inner side of the second sliding groove (13), two metal shifting pieces (17) are symmetrically and fixedly connected to the inner wall of one end, close to the second square groove (23), of the second sliding groove (13), a signal emitter (19) is fixedly connected to the inner portion of the second square groove (23), and a fixing rod (5) is fixedly connected to the outer end, of the first sliding rod (22), the lower end of the fixed rod (5) is fixedly connected with the roller cone (4).

2. The apparatus according to claim 1, wherein: the roller cone is characterized in that a roller bearing (7) is arranged inside the cone (4), a bushing (6) is fixedly connected to the tail end of one end of the fixing rod (5), and the roller bearing (7) inside the cone (4) is fixedly connected with the fixing rod (5) through the bushing (6).

3. The apparatus according to claim 1, wherein: the upper end of the first sliding rod (22) is fixedly connected with a protruding rod (9), the inner wall of the first sliding groove (8) is close to the protruding rod (9) and is fixedly connected with a third protruding block (24), and the inner diameter of the third protruding block (24) is smaller than that of the protruding rod (9).

4. The pore-forming device for cave treatment according to claim 3, wherein: a first spring (10) is sleeved on the first sliding rod (22) between the third lug (24) and the first lug (21).

5. The apparatus according to claim 1, wherein: a second bump (15) is fixedly connected to the body of the second sliding rod (14), a fourth bump (25) is fixedly connected to the inner wall of the second sliding groove (13) close to the second bump (15), and the inner diameter of the fourth bump (25) is smaller than that of the second bump (15).

6. The pore-forming device for cave treatment according to claim 5, wherein: and a second spring (26) is sleeved on a second sliding rod (14) between the fourth lug (25) and the first transmission supporting plate (12).

7. The apparatus according to claim 1, wherein: the signal emitter (19) is connected with the metal plectrum (17) through a lead (20).