CN214944068U

CN214944068U - Improve coal field geology probing coring device

Info

Publication number: CN214944068U
Application number: CN202120463120.0U
Authority: CN
Inventors: 晁文瑞; 刘国柱; 胡川
Original assignee: Henan Hongxin Petroleum Engineering Technology Service Co ltd
Current assignee: Henan Hongxin Petroleum Engineering Technology Service Co ltd
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2021-11-30
Anticipated expiration: 2031-03-04

Abstract

The utility model belongs to the technical field of coring devices, and discloses a coring device for improving geological drilling of coal fields, which comprises a coring drill, wherein a connector is integrally formed at the top end of the coring drill, a first connecting rod is fixed at the top end of the connector, a second connecting rod is installed at the top end of the first connecting rod, a thread groove is formed on the lower surface wall of the second connecting rod, an external thread is formed on the outer surface wall of the first connecting rod, and screw holes are formed on the outer surface walls of the first connecting rod and the second connecting rod, the utility model can firstly fix the first connecting rod provided with the external thread into the thread groove once through the matching of the thread groove, the external thread, the screw holes and a fastening screw, then fix the fastening screw into the thread hole for twice, the fixing directions of the two times are vertical, and can effectively increase the stability of connection between a drill bit and the connecting rod, the defect of drill bit looseness in the drilling process is avoided.

Description

Improve coal field geology probing coring device

Technical Field

The utility model belongs to the technical field of coring device, concretely relates to improve coal field geology probing coring device.

Background

In the historical development process of geology, the coal field is called in the coal-bearing rock system distribution area which is formed in the same geological period and approximately develops continuously, most of the coal field is in basin shape, so the coal field is also called as coal basin, and when geological drilling and engineering exploration of the coal field are carried out, a drilling coring device is often used for coring a rock-soil layer so as to obtain samples of the rock-soil layer, thereby facilitating follow-up more accurate exploration.

But present current probing coring device has certain defect, and it is mostly that the single is fixed between traditional probing coring device's drill bit and connecting rod, and fixed stability is relatively poor, causes the drill bit not hard up easily at the probing in-process, and in addition, traditional probing coring device takes place the drill bit easily at the probing and is connected the position and break off easily with the connecting rod, and then leads to sticking to bore scheduling problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improve coal field geology probing coring device to it is mostly the single fixed to provide between traditional drill bit and the connecting rod in solving above-mentioned background art, the relatively poor problem of fixed stability, in addition, traditional probing coring device takes place the drill bit easily at the probing and is connected the easy cracked problem of taking place in position with the connecting rod.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an improve coal field geology probing coring device, bores including getting the core, the top integrated into one piece who bores for getting the core has the connector, the top of connector is fixed with the head rod, the second connecting rod is installed on the top of head rod, the thread groove has been seted up to the lower table wall of second connecting rod, the external screw thread has been seted up to the outward appearance wall of head rod, and the outer table wall of head rod and second connecting rod has all seted up the screw, the inside of screw closes soon and is connected with fastening screw.

Preferably, first annular groove has been seted up to the outward appearance wall of connector, the inside of first annular groove is rotated and is connected with first loose ring, second annular groove has been seted up to the outward appearance wall of second connecting rod, the inside of second annular groove is rotated and is connected with the second loose ring, all there is the bracing piece through bolt symmetric connection between the outward appearance wall of first loose ring and second loose ring.

Preferably, the number of the support rods is four, and the corners of the outer surface wall of each support rod are in arc transition to form arc parts.

Preferably, the inner surface wall of the second movable ring is symmetrically fixed with an embedded block, and the inner surface wall of the second annular groove is provided with an embedded groove matched with the embedded block.

Preferably, a mounting plate is fixed to the top end of the second connecting rod, and the mounting plate is a circular plate.

Preferably, the upper surface wall of mounting panel is close to border position department symmetry and has seted up the mounting hole, 3 ~ 6 have been seted up to the mounting hole.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a thread groove, external screw thread, screw and fastening screw's cooperation, when the core drill is got in the installation, can carry out once fixing with the head rod precession thread groove who sets up the external screw thread earlier, then carry out the secondary with fastening screw precession screw in and fix, twice fixed direction is mutually perpendicular, can effectively increase the stability of being connected between drill bit and connecting rod, avoids taking place the not hard up defect of drill bit at the probing in-process.

(2) The utility model discloses an add first movable ring, second movable ring and bracing piece, can effectively increase the bulk strength of drill bit end and connecting rod end junction, when the probing, can effectively avoid the fracture of junction, improved the success rate of drilling, avoided the emergence of sticking the brill, prolonged this coring device's life.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an external view of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is an enlarged view of portion B of FIG. 1;

in the figure: 1. core drilling; 2. a connector; 3. a first connecting rod; 4. an external thread; 5. a first movable ring; 6. fastening screws; 7. a second connecting rod; 8. a second movable ring; 9. a support bar; 10. mounting a plate; 11. a screw hole; 12. a thread groove; 13. a first annular groove; 14. a second annular groove; 15. caulking grooves; 16. and (5) an embedded block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a core drilling and taking device for improving geological exploration of a coal field comprises a core drill 1, a connector 2 is integrally formed at the top end of the core drill 1, a first connecting rod 3 is fixed at the top end of the connector 2, a second connecting rod 7 is installed at the top end of the first connecting rod 3, a thread groove 12 is formed in the lower surface wall of the second connecting rod 7, an external thread 4 is formed in the outer surface wall of the first connecting rod 3, and the outer surface walls of the first connecting rod 3 and the second connecting rod 7 are both provided with screw holes 11, the inner parts of the screw holes 11 are screwed and connected with fastening screws 6, when the core drill 1 is installed, the first connecting rod 3 provided with the external thread 4 can be screwed into the thread groove 12 for one-time fixation, then, the fastening screw 6 is screwed into the screw hole 11 for secondary fixation, the two fixation directions are perpendicular, the stability of connection between the drill bit and the connecting rod can be effectively improved, and the defect that the drill bit is loosened in the drilling process is avoided.

Furthermore, a first annular groove 13 is arranged on the outer surface wall of the connector 2, a first movable ring 5 is rotatably connected inside the first annular groove 13, a second annular groove 14 is arranged on the outer surface wall of the second connecting rod 7, a second movable ring 8 is rotatably connected inside the second annular groove 14, supporting rods 9 are symmetrically connected between the outer surface walls of the first movable ring 5 and the second movable ring 8 through bolts, by arranging the first movable ring 5, the second movable ring 8 and the support rod 9, the overall strength of the joint of the drill bit end and the connecting rod end can be effectively increased, during drilling, the fracture of the joint can be avoided, the success rate of drilling is improved, the occurrence of drill sticking is avoided, the service life of the coring device is prolonged, wherein, first movable ring 5 and second movable ring 8 are rotatable, and the flexibility is stronger, can avoid blockking the revolving of fastening screw 6 and revolve wrong.

Furthermore, the number of the support rods 9 is four, the arc transition at the corner position of the outer wall of each support rod 9 forms an arc part, the four support rods 9 are symmetrically distributed, and the support effect is better.

Further, the interior table wall symmetry of second loose ring 8 is fixed with abaculus 16, and the caulking groove 15 with 16 looks adaptations of abaculus is seted up to the interior table wall of second annular groove 14, and caulking groove 15 is the annular caulking groove, and when installation second loose ring 8, can be with the abaculus 16 embedding to the caulking groove 15 in, can effectively carry on spacingly to second loose ring 8, avoids it at roll-off second annular groove 14.

Further, the top end of the second connecting rod 7 is fixed with a mounting plate 10, the mounting plate 10 is a circular plate, mounting holes are symmetrically formed in the positions, close to the edges, of the upper surface wall of the mounting plate 10, 3-6 mounting holes are formed in the mounting holes, bolts penetrate through the mounting plate 10 with the mounting holes, and the device can be stably fixed on driving equipment and is firm and reliable.

The utility model discloses a theory of operation and use flow: the utility model can be put into use after connecting the mounting plate 10 with the mounting hole to the driving device, the rock-soil layer can be drilled and taken out by using the coring drill 1, in addition, when the coring drill 1 is installed, the first connecting rod 3 with the external thread 4 can be firstly screwed into the thread groove 12 for one time for fixing, then the fastening screw 6 is screwed into the screw hole 11 for secondary fixing, the two times of fixing directions are vertical, the stability of connection between the drill bit and the connecting rod can be effectively increased, the defect of drill bit looseness in the drilling process can be avoided, in addition, the integral strength of the connection part of the drill bit end and the connecting rod end can be effectively increased by arranging the first movable ring 5, the second movable ring 8 and the supporting rod 9, the fracture of the connection part can be avoided during drilling, the success rate of drilling is improved, the occurrence of sticking is avoided, wherein, the first movable ring 5 and the second movable ring 8 can be rotated, the flexibility is stronger, and the screwing of the fastening screw 6 can be prevented from being blocked.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an improve coal field geological drilling coring device which characterized in that: including coring and boring (1), the top integrated into one piece that coring bored (1) has connector (2), the top of connector (2) is fixed with head rod (3), second connecting rod (7) are installed on the top of head rod (3), thread groove (12) have been seted up to the lower table wall of second connecting rod (7), external screw thread (4) have been seted up to the outward appearance wall of head rod (3), and screw (11) have all been seted up to the outward appearance wall of head rod (3) and second connecting rod (7), the inside of screw (11) closes soon and is connected with fastening screw (6).

2. The coring device for improving geological drilling of the coal field according to claim 1, wherein: first annular groove (13) have been seted up to the outward appearance wall of connector (2), the inside rotation of first annular groove (13) is connected with first activity ring (5), second annular groove (14) have been seted up to the outward appearance wall of second connecting rod (7), the inside rotation of second annular groove (14) is connected with second activity ring (8), all there is bracing piece (9) through bolt symmetric connection between the outward appearance wall of first activity ring (5) and second activity ring (8).

3. The coring device for improving geological drilling of the coal field according to claim 2, wherein: the number of the support rods (9) is four, and arc transition is formed at the corner position of the outer wall of each support rod (9) to form an arc part.

4. The coring device for improving geological drilling of the coal field according to claim 2, wherein: the inner surface wall of the second movable ring (8) is symmetrically fixed with embedded blocks (16), and the inner surface wall of the second annular groove (14) is provided with embedded grooves (15) matched with the embedded blocks (16).

5. The coring device for improving geological drilling of the coal field according to claim 1, wherein: the top of second connecting rod (7) is fixed with mounting panel (10), mounting panel (10) are the circular slab.

6. The coring device for improving geological drilling of the coal field according to claim 5, wherein: the last wall of mounting panel (10) is close to border position department symmetry and has seted up the mounting hole, 3 ~ 6 have been seted up to the mounting hole.