CN216950231U

CN216950231U - Novel energy storage type rope coring hydraulic down-the-hole hammer drill

Info

Publication number: CN216950231U
Application number: CN202122151731.4U
Authority: CN
Inventors: 周晓飞; 葛栋锋; 张飞; 贺鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-07-12
Anticipated expiration: 2031-09-07

Abstract

The utility model relates to the technical field of hydraulic down-the-hole hammers, and discloses a novel energy storage type wire coring hydraulic down-the-hole hammer drilling tool, which comprises a fishing spearhead, wherein a wedging piston is inserted and installed at the lower end of the fishing spearhead, a plug is inserted and installed on the wedging piston and the side surface of the fishing spearhead, the plug penetrates through the piston and the fishing spearhead, and a piston type energy accumulator is fixedly installed at the upper end in the wedging piston through threads. This novel energy storage formula rope coring hydraulic down-the-hole hammer drilling tool, through two relative piston energy storage ware, energy storage formula rope coring hydraulic down-the-hole hammer drilling tool originally adds, through the reciprocal hydraulic pressure of down-the-hole hammer inner loop, promote sealed piston to aerifing the valve port and remove, make the nitrogen gas in the gas storehouse compressed, turn into gaseous pressure and storage with the pressure energy of liquid, release the energy when pressure descends, the impact force of down-the-hole hammer drilling tool has greatly been strengthened, avoid the impact force attenuation of down-the-hole hammer behind hammer spring and the valve spring elasticity reduction.

Description

Novel energy storage type rope coring hydraulic down-the-hole hammer drill

Technical Field

The utility model relates to the technical field of hydraulic down-the-hole hammers, in particular to a novel energy storage type wire coring hydraulic down-the-hole hammer drill.

Background

The hydraulic down-the-hole hammer (also called hydraulic impactor or hydraulic hammer) is a generator of impact load in hydraulic impact rotary drilling, and utilizes the energy in flushing liquid supplied by slurry pump in the drilling process to directly drive the impact hammer in the hydraulic hammer to form up-and-down reciprocating motion, and continuously apply impact load with certain frequency to lower drilling tool so as to implement impact rotary drilling.

In a common hydraulic down-the-hole hammer, a flushing liquid drives a hammer to drive a hammer spring and a valve spring to compress to generate energy, but after the hydraulic down-the-hole hammer is used for a long time, the elasticity of the hammer spring and the valve spring can be gradually reduced, so that the impact force of the hydraulic down-the-hole hammer is attenuated.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to provide a novel energy storage type rope coring hydraulic down-the-hole hammer drill tool, which aims to solve the problem that the impact force of a hydraulic down-the-hole hammer is attenuated because the elasticity of a hammer spring and a valve spring is gradually reduced after the hydraulic down-the-hole hammer drill tool is used for a long time in the background technology.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a novel energy storage formula rope is got core and is surged down hole hammer drilling tool, is including dragging for the spearhead, drag for the lower extreme of spearhead and insert and install and agree with tight piston, agree with tight piston and drag for the spearhead side and insert and install the bolt, the bolt runs through and agrees with tight piston and drag for the spearhead, the upper end in agreeing with tight piston has piston energy storage ware through screw thread fixed mounting, the lower extreme that agrees with tight piston inserts installs the honeycomb duct, the lower extreme outside of honeycomb duct agrees with installs the guide arm, the outside cover of guide arm has the retaining ring, the lower extreme outside of guide arm agrees with installs the impact hammer, be provided with the hammer spring between the up end of impact hammer and the lower terminal surface of retaining ring.

Preferably, the hammer head is fixedly installed on the outer side of the lower end of the hammer head, the cylinder sleeve is sleeved on the outer side of the lower end of the hammer head, the lower joint is fixedly installed on the lower end face of the cylinder sleeve, the anvil is fixedly installed in the lower joint, and the hammer head in the hydraulic down-the-hole hammer is driven to reciprocate up and down through conveyed flushing fluid to strike the anvil on the lower portion.

Preferably, be provided with the core valve in the tup, the upper end outside fixed mounting of core valve has the clamping ring, the outside cover of core valve has the valve spring, and the flushing fluid drives the core valve and pushes down the valve spring and produce the return force when downwards.

Preferably, the side surface of the core valve is provided with a circulation groove, and the middle of the core valve is upwards provided with a through hole so that flushing liquid can circulate.

Preferably, the lower end in the core valve is fixedly provided with a piston type energy accumulator through threads, the piston type energy accumulator in the core valve is opposite to the piston type energy accumulator in the wedged piston, and energy stored in the two piston type energy accumulators can reciprocate in the down-the-hole hammer drilling tool.

Preferably, a lower groove is formed in one end of the piston type energy accumulator, an inflation valve port is fixedly installed in the lower groove, an air chamber is formed in the piston type energy accumulator, a hydraulic port is formed in the other end of the piston type energy accumulator, a sealing piston is arranged in the air chamber, when the pressure in the hydraulic down-the-hole hammer drilling tool rises, flushing fluid enters the piston type energy accumulator through the hydraulic port, the sealing piston is pushed to move towards the inflation valve port, nitrogen in the air chamber is compressed, the pressure energy of the liquid is converted into the pressure of the gas and stored, and when the pressure in the hydraulic down-the-hole hammer drilling tool drops, the compressed nitrogen expands to push the sealing piston to push out the flushing fluid in the piston type energy accumulator and release the energy.

Compared with the prior art, the utility model has the beneficial effects that: this novel energy storage formula rope coring hydraulic down-the-hole hammer drilling tool, through two relative piston energy storage ware, energy storage formula rope coring hydraulic down-the-hole hammer drilling tool originally adds, through the reciprocal hydraulic pressure of down-the-hole hammer inner loop, promote sealed piston to aerifing the valve port and remove, make the nitrogen gas in the gas storehouse compressed, turn into gaseous pressure and storage with the pressure energy of liquid, release the energy when pressure descends, the impact force of down-the-hole hammer drilling tool has greatly been strengthened, avoid the impact force attenuation of down-the-hole hammer behind hammer spring and the valve spring elasticity reduction.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic view of the internal half-section of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention.

In the figure: 1. fishing a spearhead; 2. wedging the piston; 3. a bolt; 4. a piston accumulator; 5. a flow guide pipe; 6. a guide bar; 7. a retainer ring; 8. punching a hammer; 9. a hammer spring; 10. a hammer head; 11. a cylinder liner; 12. a lower joint; 13. an anvil; 14. a core valve; 15. pressing a ring; 16. a valve spring; 17. a circulation tank; 18. a lower groove; 19. an inflation valve port; 20. a gas bin; 21. a hydraulic port; 22. the piston is sealed.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a novel energy storage type rope coring hydraulic down-the-hole hammer drill tool comprises a fishing spear head 1, a wedging piston 2, a bolt 3, a piston type energy accumulator 4, a flow guide pipe 5, a guide rod 6, a retainer ring 7, a hammer 8, a hammer spring 9, a hammer head 10, a cylinder sleeve 11, a lower connector 12, an anvil 13, a core valve 14, a press ring 15, a valve spring 16, a circulation groove 17, a lower groove 18, an inflation valve port 19, an air chamber 20, a hydraulic port 21 and a sealing piston 22, wherein the lower end of the fishing spear head 1 is inserted and installed with the wedging piston 2, the wedging piston 2 and the side face of the fishing spear head 1 are inserted and installed with the bolt 3, the bolt 3 penetrates through the wedging piston 2 and the spear head 1, the piston type energy accumulator 4 is fixedly installed at the upper end in the fishing piston 2 through threads, the guide pipe 5 is inserted and installed at the lower end of the wedging piston 2, the guide rod 6 is wedged and installed at the outer side face of the lower end of the guide pipe 5, the retainer ring 7 is sleeved at the outer side face of the guide rod 6, a hammer spring 9 is arranged between the upper end face of the impact hammer 8 and the lower end face of the retainer ring 7, a hammer head 10 is fixedly mounted on the outer side of the lower end of the impact hammer 8, a cylinder sleeve 11 is sleeved on the outer side of the lower end of the hammer head 10, a lower connector 12 is fixedly mounted on the lower end face of the cylinder sleeve 11, an anvil 13 is fixedly mounted in the lower connector 12, and the impact hammer 8 in the hydraulic down-the-hole hammer is driven to reciprocate up and down by conveyed flushing fluid to strike the lower anvil 13;

a core valve 14 is arranged in the hammer 10, a pressing ring 15 is fixedly mounted on the outer side of the upper end of the core valve 14, a valve spring 16 is sleeved on the outer side of the core valve 14, when flushing liquid is downward, the core valve 14 is driven to press the valve spring 16 downward to generate a return force, a circulation groove 17 is formed in the side surface of the core valve 14, and a through hole is formed in the middle of the core valve 14 upwards to enable the flushing liquid to flow;

the lower end in the core valve 14 is fixedly provided with a piston type energy accumulator 4 through threads, the piston type energy accumulator 4 in the core valve 14 is opposite to the piston type energy accumulator 4 in the fastening piston 2, so that energy stored in the two piston type energy accumulators 4 can reciprocate in the down-the-hole hammer drill, one end of the piston type energy accumulator 4 is provided with a lower groove 18, an air charging valve port 19 is fixedly arranged in the lower groove 18, an air chamber 20 is arranged in the piston type energy accumulator 4, the other end of the piston type energy accumulator 4 is provided with a hydraulic port 21, a sealing piston 22 is arranged in the air chamber 20, when the pressure in the hydraulic down-the-hole hammer drill rises, flushing fluid enters the piston type energy accumulator 4 through the hydraulic port 21, the sealing piston 22 is pushed to move towards the air charging valve port 19, nitrogen in the air chamber 20 is compressed, the pressure energy of the liquid is converted into the pressure of the gas and is stored, when the pressure in the hydraulic down-the-hole hammer, the compressed nitrogen expands to push the sealing piston 22 to push out the flushing liquid in the piston type energy accumulator 4, and energy is released.

The working principle is as follows: the hammer 10 is pressed tightly on the anvil 13 by the pre-pressure of the hammer spring 9, the liquid enters the draft tube 5 and enters the lower cavity of the down-the-hole hammer through the hammer 8 and the core valve 14, the core valve 14 is sealed to block the center of the anvil 13, the hydraulic pressure in the down-the-hole hammer is increased to push the hammer 10 to descend, the liquid enters the piston type energy accumulator 4 of the core valve 14 through the hydraulic port 21 to push the sealing piston 22 to move towards the inflation valve port 19, the nitrogen in the air bin 20 is compressed to convert the pressure energy of the liquid into the pressure of the gas and store the pressure, the valve spring 16 is compressed to store energy, when the upward compression force of the valve spring 16 is larger than the downward pressure acting on the core valve 14 by the liquid, the core valve 14 is rapidly bounced by the valve spring 16, the pressure is decreased, the compressed nitrogen expands to push the sealing piston 22 to push the flushing liquid in the piston type energy accumulator 4, the energy is released, the hammer 8 is pushed to compress the spring 9 to store energy, the pressure in the tightening piston 2 is increased, liquid enters the piston type energy accumulator 4 of the wedged piston 2 through the hydraulic port 21, the sealing piston 22 is pushed to move towards the gas charging valve port 19, nitrogen in the gas bin 20 is compressed, the pressure energy of the liquid is converted into the pressure of the gas and stored, and the energy is made to reciprocate in the down-the-hole hammer.

Finally, it should be noted that the above-mentioned contents are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, and that the simple modifications or equivalent substitutions of the technical solutions of the present invention by those of ordinary skill in the art can be made without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a novel energy storage formula rope coring hydraulic down-the-hole hammer drilling tool, includes drags for spearhead (1), its characterized in that: the fishing spear is characterized in that a wedging piston (2) is inserted into the lower end of the fishing spear head (1), a bolt (3) is inserted into the side face of the wedging piston (2) and the fishing spear head (1), the bolt (3) penetrates through the wedging piston (2) and the fishing spear head (1), a piston type energy accumulator (4) is fixedly installed at the upper end of the wedging piston (2) through threads, a guide pipe (5) is inserted into the lower end of the wedging piston (2), a guide rod (6) is engaged with the outer side of the lower end of the guide pipe (5), a retaining ring (7) is sleeved on the outer side of the guide rod (6), a punching hammer (8) is engaged with the outer side of the lower end of the guide rod (6), and a hammer spring (9) is arranged between the upper end face of the punching hammer (8) and the lower end face of the retaining ring (7).

2. The novel energy-storage type rope coring hydraulic down-the-hole hammer drill bit as claimed in claim 1, characterized in that: the punching hammer is characterized in that a hammer head (10) is fixedly mounted on the outer side of the lower end of the punching hammer (8), a cylinder sleeve (11) is sleeved on the outer side of the lower end of the hammer head (10), a lower joint (12) is fixedly mounted on the lower end face of the cylinder sleeve (11), and an anvil (13) is fixedly mounted in the lower joint (12).

3. The novel energy-storing type rope coring hydraulic down-the-hole hammer drill tool as claimed in claim 2, wherein: be provided with core valve (14) in tup (10), the upper end outside fixed mounting of core valve (14) has clamping ring (15), the outside cover of core valve (14) has valve spring (16).

4. A novel energy-storing rope-coring hydraulic down-the-hole hammer drill as claimed in claim 3, characterized in that: the side surface of the core valve (14) is provided with a circulation groove (17), and the middle of the core valve (14) is upwards provided with a through hole.

5. A novel energy-storing rope-coring hydraulic down-the-hole hammer drill as claimed in claim 3, characterized in that: the lower end in the core valve (14) is fixedly provided with a piston type energy accumulator (4) through threads, and the piston type energy accumulator (4) in the core valve (14) is opposite to the piston type energy accumulator (4) in the wedging piston (2).

6. The novel energy-storing type rope coring hydraulic down-the-hole hammer drill tool as claimed in claim 1, wherein: a lower groove (18) is formed in one end of the piston type energy accumulator (4), an inflation valve port (19) is fixedly mounted in the lower groove (18), an air chamber (20) is formed in the piston type energy accumulator (4), a hydraulic port (21) is formed in the other end of the piston type energy accumulator (4), and a sealing piston (22) is arranged in the air chamber (20).