CN108979540B - Mechanical hydrodynamic force combined reaming device - Google Patents
Mechanical hydrodynamic force combined reaming device Download PDFInfo
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- CN108979540B CN108979540B CN201810931046.3A CN201810931046A CN108979540B CN 108979540 B CN108979540 B CN 108979540B CN 201810931046 A CN201810931046 A CN 201810931046A CN 108979540 B CN108979540 B CN 108979540B
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- 238000007789 sealing Methods 0.000 claims abstract description 108
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 238000005553 drilling Methods 0.000 claims abstract description 24
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 210000000476 body water Anatomy 0.000 claims description 5
- 125000003003 spiro group Chemical group 0.000 claims 1
- 239000003245 coal Substances 0.000 description 8
- 238000004080 punching Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses a mechanical hydrodynamic combined reaming device which comprises a drilling rod body, a cutter body, a shaft, a sealing ring, a retainer ring, a spring, a limiting device and a piston type water flow reverser, wherein the cutter body, the shaft, the sealing ring, the retainer ring, the spring, the limiting device and the piston type water flow reverser are arranged in the drilling rod body, the left end of the cutter body is provided with the limiting device, and the right end of the cutter body is provided with the piston type water flow reverser.
Description
Technical Field
The invention relates to the technical field of hydraulic drilling, in particular to a mechanical and hydrodynamic combined reaming device.
Background
Along with the increase of the drilling depth of the coal seams, the stress between the coal seams is gradually increased, and the gas drainage holes drilled by the common small drill bit are easily extruded back by the stress between the coal seams, so that the gas drainage efficiency is greatly reduced. Hydraulic drilling technology has not been gradually applied to coal seam mining until now since the discovery in the last 80 th century. However, the hydraulic punching operation mode can realize hydraulic punching only by pulling out the drill rod and replacing the drill rod with punching equipment. Although some equipment can be used for punching without switching, hydraulic punching efficiency is low when a hard coal seam is encountered, the time length is long, the reaming effect is not obvious, the gas before exploitation cannot be effectively pre-pumped, the labor intensity of workers is increased, and the production efficiency in the pit is adversely affected.
Disclosure of Invention
The invention aims to provide a mechanical hydrodynamic combined reaming device, which is used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the mechanical hydrodynamic force combined reaming device comprises a drilling rod body, and a cutter body, a shaft, a first sealing ring, a second sealing ring, a first check ring, a second check ring, a first spring, a second spring, a limiting device and a piston type water flow reverser which are arranged in the drilling rod body, wherein the limiting device is arranged at the left end of the cutter body, the piston type water flow reverser is arranged at the right end of the cutter body, the limiting device comprises a core valve, a valve cover, a first sealing ring, a first check ring and a first spring, one end of the core valve is embedded in the valve cover, the first spring is connected with a first core valve sleeve, one end of the first spring is connected with the valve cover in an abutting mode, the other end of the first spring is connected with a first core valve groove in an abutting mode, the first check ring is connected with the valve cover in an abutting mode, and the other end of the core valve penetrates through the first core valve groove and then is connected with a top pin in an abutting mode;
The piston type water flow reverser comprises a piston, a piston sleeve, a second sealing ring, a second check ring and a second spring, wherein the piston sleeve is provided with a piston sleeve sealing ring groove, a piston sleeve check ring groove, a water flow passing hole in high pressure and a water flow passing hole in low pressure, the piston groove and the spring groove, the second check ring groove is fixedly connected with the second check ring, the second check ring is abutted to the piston, the second sealing ring is sleeved on the periphery of the piston, a piston rod is arranged in the piston sleeve, the second spring is sleeved on the piston rod, one end of the piston rod is abutted to the piston, the other end of the piston rod is abutted to a one-way valve seat, a gasket sleeved on the piston rod is arranged between the one-way valve seat and the piston sleeve, and the one-way valve seat is fixedly connected with the one-way valve core.
Preferably, the drill rod body is provided with a core valve slot, a valve cover slot, a shaft slot, a cutter body slot, a water flow passing hole and a piston sleeve slot, the valve cover slot is sleeved with a valve cover, a shaft is arranged in the shaft slot, the cutter body is sleeved with the cutter body slot, and the piston sleeve slot is sleeved with a piston sleeve.
Preferably, the drill rod body is in threaded connection with the connector, the connector is fixedly connected with the filter screen, the filter screen is a stainless steel wire filter screen, the connector is sleeved with a second spiral spring, and the second spiral spring is abutted to the unidirectional valve core.
Preferably, a shaft penetrating hole, a top pin shell groove, a water channel groove and a nozzle groove are formed in the cutter body, a shaft is arranged in the shaft penetrating hole, the top pin shell is sleeved in the top pin shell groove, a first spiral spring and a top pin are arranged in the top pin shell, one end of the first spiral spring is abutted to the top pin shell groove, the other end of the first spiral spring is abutted to the top pin, the head end of the top pin penetrates through the top pin shell, and a nozzle is sleeved in the nozzle groove.
Preferably, the shaft is provided with cutter body water flow through holes, communicating water channel holes, water flow through grooves and cutter body sealing ring grooves, two cutter body sealing ring grooves are arranged, the distance between the two cutter body sealing ring grooves is smaller than one centimeter, and the two cutter body sealing ring grooves are sleeved with annular rubber sealing rings.
Compared with the prior art, the invention has the beneficial effects that:
The advanced device integrating hydraulic drilling and mechanical reaming is characterized in that low-pressure water can cool the drill rod body in the conventional perforating process, water flow can ensure the powder discharging effect in the hole, the cutter body is opened at high pressure to cut the coal body, the drilling and reaming integration can be realized through high-low pressure conversion, and the problems of more parts and components, high labor intensity, low efficiency and incapability of reaming high-hardness coal seams in conventional equipment are solved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the drill pipe body of FIG. 1;
FIG. 3 is a schematic view of the shaft structure of FIG. 1;
FIG. 4 is a schematic view of the cutter body shown in FIG. 1;
fig. 5 is a schematic diagram of the piston sleeve in fig. 1.
In the figure: 1 drill rod body, 101 valve cap groove, 102 shaft groove, 103 cutter body groove, 104 water flow through hole, 105 piston sleeve groove, 106 core valve groove, 2 valve core, 3 valve cap, 4a seal ring I, 4b seal ring II, 5a seal ring I, 5b seal ring II, 6 cutter body, 601 shaft through hole, 602 top pin housing groove, 603 water channel groove, 604 nozzle groove, 7a spring I, 7b spring II, 8 top pin, 9 top pin housing, 10 shaft, 1001 cutter body water flow through hole, 1002 communicating water channel hole, 1003 water flow through groove, 1004 cutter body seal ring groove, 11 nozzle, 12 piston, 13 piston sleeve, 1301 piston sleeve seal ring groove, 1302 piston sleeve seal ring groove, 1303 water flow through hole at high pressure, 1304 water flow through hole at low pressure, 1305 piston groove, 1306 spring groove, 14 plug, 15 washer, 16 one-way valve seat, 17 one-way valve core, 18 connector, 19 filter screen.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, the present invention provides a technical solution: the mechanical and hydrodynamic combined reaming device comprises a drilling rod body 1, a cutter body 6, a shaft 10, a first sealing ring 4a, a second sealing ring 4b, a first check ring 5a, a second check ring 5b, a first spring 7a, a second spring 7b, a limiting device and a piston type water flow reverser, wherein the cutter body is arranged in the drilling rod body 1. The left end of cutter body 6 is equipped with stop device, and its right-hand member is equipped with piston rivers commutator, stop device includes core valve 2, valve gap 3, sealing washer one 4a, retaining ring one 5a and spring one 7a, the one end of core valve 2 is embedded in valve gap 3, and core valve 2 cup joints spring one 7a, the one end butt valve gap 3 of spring one 7a, and its other end butt core valve groove 106, core valve groove 106 joint retaining ring one 5a, retaining ring one 5a cup joints valve gap 3, valve gap 3 butt sealing washer one 4a, the other end of core valve 2 runs through behind core valve groove 106 butt liftout 8.
The piston type water flow reverser comprises a piston 12, a piston sleeve 13, a second sealing ring 4b, a second retainer ring 5b and a second spring 7b, wherein the piston sleeve 13 is provided with a piston sleeve sealing ring groove 1301, a piston sleeve retainer ring groove 1302, a water flow through hole 1303 in high pressure, a water flow through hole 1304 in low pressure, a piston groove 1305 and a spring groove 1306, the piston sleeve retainer ring groove 1302 is fixedly connected with the second retainer ring 5b, the second retainer ring 5b is abutted to the piston 12, the outer periphery of the piston 12 is sleeved with the second sealing ring 4b, a piston rod is arranged in the piston sleeve 13, the second spring 7b is sleeved with the piston rod, one end of the piston rod is abutted to the piston 12, the other end of the piston rod is abutted to a one-way valve seat 16, a gasket 15 sleeved on the piston rod is arranged between the one-way valve seat 16 and the piston sleeve 13, and the one-way valve seat 16 is fixedly connected with the one-way valve core 17.
Further, the drill rod body 1 is provided with a core valve slot 106, a valve cover slot 101, a shaft slot 102, a cutter body slot 103, a water flow through hole 104 and a piston sleeve slot 105, the valve cover slot 101 is sleeved with the valve cover 3, a shaft 10 is arranged in the shaft slot 102, the cutter body slot 103 is sleeved with the cutter body 6, and the piston sleeve slot 105 is sleeved with the piston sleeve 13.
Further, the drill rod body 1 is connected with the connector 18 in a threaded manner, the connector 18 is fixedly connected with the filter screen 19, the filter screen 19 is a stainless steel wire filter screen, the connector 18 is sleeved with a second spiral spring, and the second spiral spring is abutted against the one-way valve core 17.
Further, a shaft through hole 601, a knock pin housing groove 602, a water channel groove 603 and a nozzle groove 604 are formed in the cutter body 6, a shaft 10 is arranged in the shaft through hole 601, the knock pin housing groove 602 is sleeved with the knock pin housing 9, a first spiral spring and a knock pin 8 are arranged in the knock pin housing 9, one end of the first spiral spring is abutted against the knock pin housing groove 602, the other end of the first spiral spring is abutted against the knock pin 8, the head end of the knock pin 8 penetrates through the knock pin housing 9, and a nozzle 11 is sleeved in the nozzle groove 604.
Further, the shaft 10 is provided with a cutter body water flow through hole 1001, a communicating water channel hole 1002, a water flow through groove 1003 and cutter body sealing ring grooves 1004, the cutter body sealing ring grooves 1004 are provided with two, the distance between the two cutter body sealing ring grooves 1004 is smaller than one centimeter, and the two sealing ring grooves 1004 are all sleeved with annular rubber sealing rings.
Example 1
The mechanical hydrodynamic force combined reaming device comprises a drilling rod body 1, and a cutter body 6, a shaft 10, a first sealing ring 4a, a second sealing ring 4b, a first check ring 5a, a second check ring 5b, a first spring 7a, a second spring 7b, a limiting device and a piston type water flow reverser which are arranged in the drilling rod body 1, wherein the left end of the cutter body 6 is provided with the limiting device, the right end of the cutter body is provided with the piston type water flow reverser, the limiting device comprises a core valve 2, a valve cover 3, a first sealing ring 4a, a first check ring 5a and a first spring 7a, one end of the core valve 2 is embedded in the valve cover 3, the first spring 7a is sleeved on the core valve 2, one end of the first spring 7a is abutted against the valve cover 3, the other end of the first spring 7a is abutted against the core valve groove 106, the first core valve groove 106 is clamped against the first check ring 5a is sleeved on the valve cover 3, the valve cover 3 is abutted against the first sealing ring 4a, and the other end of the core valve 2 penetrates through the core valve groove 106 and then is abutted against a top pin 8; the piston type water flow reverser comprises a piston 12, a piston sleeve 13, a second sealing ring 4b, a second sealing ring 5b and a second spring 7b, wherein the piston sleeve 13 is provided with a piston sleeve sealing ring groove 1301, a piston sleeve sealing ring groove 1302, a water flow through hole 1303 in high pressure, a water flow through hole 1304 in low pressure, a piston groove 1305 and a spring groove 1306, the piston sleeve sealing ring groove 1302 is fixedly connected with the second sealing ring 5b, the second sealing ring 5b is abutted to the piston 12, the second sealing ring 4b is sleeved on the periphery of the piston 12, a piston rod is arranged in the piston sleeve 13, the second spring 7b is sleeved on the piston rod, one end of the piston rod is abutted to the piston 12, the other end of the piston rod is abutted to a one-way valve seat 16, a gasket 15 sleeved on the piston rod is arranged between the one-way valve seat 16 and the piston sleeve 13, and the one-way valve seat 16 is fixedly connected with a one-way valve core 17.
Example 2
The mechanical hydrodynamic force combined reaming device comprises a drilling rod body 1, and a cutter body 6, a shaft 10, a first sealing ring 4a, a second sealing ring 4b, a first check ring 5a, a second check ring 5b, a first spring 7a, a second spring 7b, a limiting device and a piston type water flow reverser which are arranged in the drilling rod body 1, wherein the left end of the cutter body 6 is provided with the limiting device, the right end of the cutter body is provided with the piston type water flow reverser, the limiting device comprises a core valve 2, a valve cover 3, a first sealing ring 4a, a first check ring 5a and a first spring 7a, one end of the core valve 2 is embedded in the valve cover 3, the first spring 7a is sleeved on the core valve 2, one end of the first spring 7a is abutted against the valve cover 3, the other end of the first spring 7a is abutted against the core valve groove 106, the first core valve groove 106 is clamped against the first check ring 5a is sleeved on the valve cover 3, the valve cover 3 is abutted against the first sealing ring 4a, and the other end of the core valve 2 penetrates through the core valve groove 106 and then is abutted against a top pin 8; the piston type water flow reverser comprises a piston 12, a piston sleeve 13, a second sealing ring 4b, a second sealing ring 5b and a second spring 7b, wherein the piston sleeve 13 is provided with a piston sleeve sealing ring groove 1301, a piston sleeve sealing ring groove 1302, a water flow through hole 1303 in high pressure, a water flow through hole 1304 in low pressure, a piston groove 1305 and a spring groove 1306, the piston sleeve sealing ring groove 1302 is fixedly connected with the second sealing ring 5b, the second sealing ring 5b is abutted to the piston 12, the second sealing ring 4b is sleeved on the periphery of the piston 12, a piston rod is arranged in the piston sleeve 13, the second spring 7b is sleeved on the piston rod, one end of the piston rod is abutted to the piston 12, the other end of the piston rod is abutted to a one-way valve seat 16, a gasket 15 sleeved on the piston rod is arranged between the one-way valve seat 16 and the piston sleeve 13, and the one-way valve seat 16 is fixedly connected with a one-way valve core 17.
The drill rod body 1 is provided with a core valve slot 106, a valve cover slot 101, a shaft slot 102, a cutter body slot 103, a water flow passing hole 104 and a piston sleeve slot 105, the valve cover slot 101 is sleeved with a valve cover 3, a shaft 10 is arranged in the shaft slot 102, the cutter body slot 103 is sleeved with a cutter body 6, and the piston sleeve slot 105 is sleeved with a piston sleeve 13.
Example 3
The mechanical hydrodynamic force combined reaming device comprises a drilling rod body 1, and a cutter body 6, a shaft 10, a first sealing ring 4a, a second sealing ring 4b, a first check ring 5a, a second check ring 5b, a first spring 7a, a second spring 7b, a limiting device and a piston type water flow reverser which are arranged in the drilling rod body 1, wherein the left end of the cutter body 6 is provided with the limiting device, the right end of the cutter body is provided with the piston type water flow reverser, the limiting device comprises a core valve 2, a valve cover 3, a first sealing ring 4a, a first check ring 5a and a first spring 7a, one end of the core valve 2 is embedded in the valve cover 3, the first spring 7a is sleeved on the core valve 2, one end of the first spring 7a is abutted against the valve cover 3, the other end of the first spring 7a is abutted against the core valve groove 106, the first core valve groove 106 is clamped against the first check ring 5a is sleeved on the valve cover 3, the valve cover 3 is abutted against the first sealing ring 4a, and the other end of the core valve 2 penetrates through the core valve groove 106 and then is abutted against a top pin 8; the piston type water flow reverser comprises a piston 12, a piston sleeve 13, a second sealing ring 4b, a second sealing ring 5b and a second spring 7b, wherein the piston sleeve 13 is provided with a piston sleeve sealing ring groove 1301, a piston sleeve sealing ring groove 1302, a water flow through hole 1303 in high pressure, a water flow through hole 1304 in low pressure, a piston groove 1305 and a spring groove 1306, the piston sleeve sealing ring groove 1302 is fixedly connected with the second sealing ring 5b, the second sealing ring 5b is abutted to the piston 12, the second sealing ring 4b is sleeved on the periphery of the piston 12, a piston rod is arranged in the piston sleeve 13, the second spring 7b is sleeved on the piston rod, one end of the piston rod is abutted to the piston 12, the other end of the piston rod is abutted to a one-way valve seat 16, a gasket 15 sleeved on the piston rod is arranged between the one-way valve seat 16 and the piston sleeve 13, and the one-way valve seat 16 is fixedly connected with a one-way valve core 17.
The drill rod body 1 is provided with a core valve slot 106, a valve cover slot 101, a shaft slot 102, a cutter body slot 103, a water flow passing hole 104 and a piston sleeve slot 105, the valve cover slot 101 is sleeved with a valve cover 3, a shaft 10 is arranged in the shaft slot 102, the cutter body slot 103 is sleeved with a cutter body 6, and the piston sleeve slot 105 is sleeved with a piston sleeve 13.
The drill rod body 1 is in threaded connection with the connector 18, the connector 18 is fixedly connected with the filter screen 19, the filter screen 19 is a stainless steel wire filter screen, the connector 18 is sleeved with a second spiral spring, and the second spiral spring is abutted against the one-way valve core 17.
Example 4
The mechanical hydrodynamic force combined reaming device comprises a drilling rod body 1, and a cutter body 6, a shaft 10, a first sealing ring 4a, a second sealing ring 4b, a first check ring 5a, a second check ring 5b, a first spring 7a, a second spring 7b, a limiting device and a piston type water flow reverser which are arranged in the drilling rod body 1, wherein the left end of the cutter body 6 is provided with the limiting device, the right end of the cutter body is provided with the piston type water flow reverser, the limiting device comprises a core valve 2, a valve cover 3, a first sealing ring 4a, a first check ring 5a and a first spring 7a, one end of the core valve 2 is embedded in the valve cover 3, the first spring 7a is sleeved on the core valve 2, one end of the first spring 7a is abutted against the valve cover 3, the other end of the first spring 7a is abutted against the core valve groove 106, the first core valve groove 106 is clamped against the first check ring 5a is sleeved on the valve cover 3, the valve cover 3 is abutted against the first sealing ring 4a, and the other end of the core valve 2 penetrates through the core valve groove 106 and then is abutted against a top pin 8; the piston type water flow reverser comprises a piston 12, a piston sleeve 13, a second sealing ring 4b, a second sealing ring 5b and a second spring 7b, wherein the piston sleeve 13 is provided with a piston sleeve sealing ring groove 1301, a piston sleeve sealing ring groove 1302, a water flow through hole 1303 in high pressure, a water flow through hole 1304 in low pressure, a piston groove 1305 and a spring groove 1306, the piston sleeve sealing ring groove 1302 is fixedly connected with the second sealing ring 5b, the second sealing ring 5b is abutted to the piston 12, the second sealing ring 4b is sleeved on the periphery of the piston 12, a piston rod is arranged in the piston sleeve 13, the second spring 7b is sleeved on the piston rod, one end of the piston rod is abutted to the piston 12, the other end of the piston rod is abutted to a one-way valve seat 16, a gasket 15 sleeved on the piston rod is arranged between the one-way valve seat 16 and the piston sleeve 13, and the one-way valve seat 16 is fixedly connected with a one-way valve core 17.
The drill rod body 1 is provided with a core valve slot 106, a valve cover slot 101, a shaft slot 102, a cutter body slot 103, a water flow passing hole 104 and a piston sleeve slot 105, the valve cover slot 101 is sleeved with a valve cover 3, a shaft 10 is arranged in the shaft slot 102, the cutter body slot 103 is sleeved with a cutter body 6, and the piston sleeve slot 105 is sleeved with a piston sleeve 13.
The drill rod body 1 is in threaded connection with the connector 18, the connector 18 is fixedly connected with the filter screen 19, the filter screen 19 is a stainless steel wire filter screen, the connector 18 is sleeved with a second spiral spring, and the second spiral spring is abutted against the one-way valve core 17.
The cutter body 6 is internally provided with a shaft penetrating hole 601, a top pin shell groove 602, a water channel groove 603 and a nozzle groove 604, the shaft penetrating hole 601 is internally provided with a shaft 10, the top pin shell groove 602 is sleeved with a top pin shell 9, the top pin shell 9 is internally provided with a first spiral spring and a top pin 8, one end of the first spiral spring is abutted against the top pin shell groove 602, the other end of the first spiral spring is abutted against the top pin 8, the head end of the top pin 8 penetrates through the top pin shell 9, and the nozzle groove 604 is internally sleeved with a nozzle 11.
Example 5
The mechanical hydrodynamic force combined reaming device comprises a drilling rod body 1, and a cutter body 6, a shaft 10, a first sealing ring 4a, a second sealing ring 4b, a first check ring 5a, a second check ring 5b, a first spring 7a, a second spring 7b, a limiting device and a piston type water flow reverser which are arranged in the drilling rod body 1, wherein the left end of the cutter body 6 is provided with the limiting device, the right end of the cutter body is provided with the piston type water flow reverser, the limiting device comprises a core valve 2, a valve cover 3, a first sealing ring 4a, a first check ring 5a and a first spring 7a, one end of the core valve 2 is embedded in the valve cover 3, the first spring 7a is sleeved on the core valve 2, one end of the first spring 7a is abutted against the valve cover 3, the other end of the first spring 7a is abutted against the core valve groove 106, the first core valve groove 106 is clamped against the first check ring 5a is sleeved on the valve cover 3, the valve cover 3 is abutted against the first sealing ring 4a, and the other end of the core valve 2 penetrates through the core valve groove 106 and then is abutted against a top pin 8; the piston type water flow reverser comprises a piston 12, a piston sleeve 13, a second sealing ring 4b, a second sealing ring 5b and a second spring 7b, wherein the piston sleeve 13 is provided with a piston sleeve sealing ring groove 1301, a piston sleeve sealing ring groove 1302, a water flow through hole 1303 in high pressure, a water flow through hole 1304 in low pressure, a piston groove 1305 and a spring groove 1306, the piston sleeve sealing ring groove 1302 is fixedly connected with the second sealing ring 5b, the second sealing ring 5b is abutted to the piston 12, the second sealing ring 4b is sleeved on the periphery of the piston 12, a piston rod is arranged in the piston sleeve 13, the second spring 7b is sleeved on the piston rod, one end of the piston rod is abutted to the piston 12, the other end of the piston rod is abutted to a one-way valve seat 16, a gasket 15 sleeved on the piston rod is arranged between the one-way valve seat 16 and the piston sleeve 13, and the one-way valve seat 16 is fixedly connected with a one-way valve core 17.
The drill rod body 1 is provided with a core valve slot 106, a valve cover slot 101, a shaft slot 102, a cutter body slot 103, a water flow passing hole 104 and a piston sleeve slot 105, the valve cover slot 101 is sleeved with a valve cover 3, a shaft 10 is arranged in the shaft slot 102, the cutter body slot 103 is sleeved with a cutter body 6, and the piston sleeve slot 105 is sleeved with a piston sleeve 13.
The drill rod body 1 is in threaded connection with the connector 18, the connector 18 is fixedly connected with the filter screen 19, the filter screen 19 is a stainless steel wire filter screen, the connector 18 is sleeved with a second spiral spring, and the second spiral spring is abutted against the one-way valve core 17.
The cutter body 6 is internally provided with a shaft penetrating hole 601, a top pin shell groove 602, a water channel groove 603 and a nozzle groove 604, the shaft penetrating hole 601 is internally provided with a shaft 10, the top pin shell groove 602 is sleeved with a top pin shell 9, the top pin shell 9 is internally provided with a first spiral spring and a top pin 8, one end of the first spiral spring is abutted against the top pin shell groove 602, the other end of the first spiral spring is abutted against the top pin 8, the head end of the top pin 8 penetrates through the top pin shell 9, and the nozzle groove 604 is internally sleeved with a nozzle 11.
The shaft 10 is provided with a cutter body water flow through hole 1001, a communicating water channel hole 1002, a water flow through groove 1003 and cutter body sealing ring grooves 1004, the cutter body sealing ring grooves 1004 are arranged in two, the distance between the two cutter body sealing ring grooves 1004 is smaller than one centimeter, and the two sealing ring grooves 1004 are sleeved with annular rubber sealing rings.
Working principle: according to the invention, the principle of small hole throttling is applied in the cooling link of the drill bit, when drilling and reaming operations are normally carried out, water flows are split through the water flow through holes 104 on two sides of the drill bit body 1, a part of water flows are conveyed to the cutter body 6 and the limiting device, water flows are conveyed to the cutter body 6 and the limiting device through the shaft 10 when water is at low pressure, at this time, the force applied to the valve core 2 by the water flow pressure is lower than the tension of the spring 7a, the valve cover 3 cannot be opened, and mechanical reaming cannot be carried out.
The other part of the water is conveyed to the front end of the drill rod body 1 and flows out of the connector 18, water flow of low-pressure water passes through the front end nozzle 11, in the piston type water flow reverser, when the force applied to the tail part of the piston 12 by the water flow pressure is lower than the sum of the tension of the spring II 7b and the force of the end part of the piston 12, the water can continue to move forward, the one-way valve core 17 is pushed to pass through the filter screen 19, the water flow meets the suddenly narrowed section at the moment, the pressure of the water flow is suddenly reduced due to the existence of resistance, the corresponding evaporation temperature of the water flow also correspondingly drops, so that the liquid can be evaporated at lower temperature, and the evaporation process absorbs own heat, so that the drill bit is cooled.
When the force applied to the tail part of the piston 12 by the water flow pressure in the front end piston type water flow reverser is higher than the tension of the spring II 7b and the force of the end part of the piston, the water flow can push the piston 12 to move forward, the spring II 7b is compressed, the water flow is closed to move forward, the force borne by the valve core 2 at the rear end limiting device is higher than the tension applied by the spring I7 a, the valve core 2 in the limiting device moves forward, the ejector pin 8 is pushed to release the limit, high-pressure water is sprayed from the nozzle 11 of the cutter body to form a reaction force, the mechanical reaming device can be opened, the coal body is cut, and along with the increase of the water pressure, the nozzle 11 at the front end of the reaming device also has the high-pressure water flow cutting effect, and the cutting efficiency is improved.
The device of the invention is assembled by the following steps:
firstly, a second spring 7b and a second sealing ring 4b are arranged at one end of a piston sleeve 13, then a piston 12 is inserted, the end part of the piston 12 is sleeved with the second sealing ring 4b and limited by a second check ring 5b, finally a gasket 15 is arranged at the other end of the piston sleeve 13, the piston sleeve is locked by a plug 14, and the second sealing ring 4b is arranged outside;
a filter screen 19 is arranged at one end of a connector 18, the connector is limited by a plastic check ring, a second spiral spring, a one-way valve core 17 and a one-way valve seat 16 are sequentially arranged at the other end of the connector, and finally the connector is limited by the plastic check ring;
Step three, a first spiral spring, a top pin 8 and a top pin shell 9 are arranged at the upper end of the cutter body 6, and a nozzle 11 is arranged at the other end;
Step four, sequentially installing a first spring 7a, a valve core 2 and a valve cover 3 at the upper end of the drill rod body 1, installing a first sealing ring 4a on the valve cover 3, then limiting by a first check ring 5a, and finally installing the first sealing ring 4a;
and fifthly, installing an annular rubber sealing ring on the periphery of the shaft 10.
And step six, after the steps are finished, the component in the step one is arranged in the drill rod body 1, the component in the step two is used for fastening and limiting through threads, then the component in the step three is placed in an empty groove in the middle of the drill rod body 1, and the component in the step five is used for limiting.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a mechanical hydrodynamic force combination formula reaming device, includes the drilling rod body (1), and locate inside cutter body (6), axle (10), sealing washer one (4 a), sealing washer two (4 b), retaining ring one (5 a), retaining ring two (5 b), spring one (7 a), spring two (7 b), stop device and piston rivers commutator of drilling rod body (1), its characterized in that: the left end of the cutter body (6) is provided with a limiting device, the right end of the cutter body is provided with a piston type water flow reverser, the limiting device comprises a core valve (2), a valve cover (3), a first sealing ring (4 a), a first check ring (5 a) and a first spring (7 a), one end of the core valve (2) is embedded into the valve cover (3), the first spring (7 a) is sleeved on the core valve (2), one end of the first spring (7 a) is abutted against the valve cover (3), the other end of the first spring is abutted against a core valve groove (106), the core valve groove (106) is clamped against the first check ring (5 a), the first check ring (5 a) is sleeved on the valve cover (3), the first valve cover (3) is abutted against the first sealing ring (4 a), and the other end of the core valve (2) penetrates through the core valve groove (106) and then is abutted against a jacking pin (8); the piston type water flow reverser comprises a piston (12), a piston sleeve (13), a second sealing ring (4 b), a second check ring (5 b) and a second spring (7 b), wherein the piston sleeve (13) is provided with a piston sleeve sealing ring groove (1301), a piston sleeve check ring groove (1302), a water flow passing hole (1303) at high pressure, a water flow passing hole (1304) at low pressure, a piston groove (1305) and a spring groove (1306), the piston sleeve check ring groove (1302) is fixedly connected with the second check ring (5 b), the second check ring (5 b) is abutted against the piston (12), the second sealing ring (4 b) is sleeved on the periphery of the piston (12), a piston rod is arranged in the piston sleeve (13), the second spring (7 b) is sleeved on the piston rod, one end of the piston rod is abutted against the piston (12), the other end of the piston rod is abutted against a one-way valve seat (16), a gasket (15) sleeved on the piston rod is arranged between the one-way valve seat (16) and the piston sleeve (13), and the one-way valve seat (16) is fixedly connected with a one-way valve core (17); the drill rod body (1) is provided with a core valve slot (106), a valve cover slot (101), a shaft slot (102), a cutter body slot (103), a water flow through hole (104) and a piston sleeve slot (105), the valve cover slot (101) is sleeved with a valve cover (3), a shaft (10) is arranged in the shaft slot (102), the cutter body slot (103) is sleeved with a cutter body (6), and the piston sleeve slot (105) is sleeved with a piston sleeve (13); the drill rod body (1) spiro union connects joint (18), connector (18) fixed connection filter screen (19), filter screen (19) are stainless steel wire filter screen, and connector (18) cup joint second coil spring, second coil spring butt check case (17).
2. A mechanical hydrodynamic combined reaming device according to claim 1, characterized in that: the cutter body (6) is internally provided with a shaft penetrating hole (601), a top pin shell groove (602), a water channel groove (603) and a nozzle groove (604), the shaft penetrating hole (601) is internally provided with a shaft (10), the top pin shell groove (602) is sleeved with a top pin shell (9), the top pin shell (9) is internally provided with a first spiral spring and a top pin (8), one end of the first spiral spring is abutted against the top pin shell groove (602), the other end of the first spiral spring is abutted against the top pin (8), the head end of the top pin (8) penetrates through the top pin shell (9), and the nozzle groove (604) is internally sleeved with a nozzle (11).
3. A mechanical hydrodynamic combined reaming device according to claim 1, characterized in that: cutter body water flow through holes (1001), communicating water channel holes (1002), water flow through grooves (1003) and cutter body sealing ring grooves (1004) are formed in the shaft (10), two cutter body sealing ring grooves (1004) are formed, the distance between the two cutter body sealing ring grooves (1004) is smaller than one centimeter, and annular rubber sealing rings are sleeved on the two cutter body sealing ring grooves (1004).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810931046.3A CN108979540B (en) | 2018-08-15 | 2018-08-15 | Mechanical hydrodynamic force combined reaming device |
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| CN201810931046.3A CN108979540B (en) | 2018-08-15 | 2018-08-15 | Mechanical hydrodynamic force combined reaming device |
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| CN112593911B (en) * | 2020-12-14 | 2022-05-17 | 山西晋城无烟煤矿业集团有限责任公司 | Coal mining and diameter expanding method by sectional power of horizontal well on coal mine ground |
| CN112593912B (en) * | 2020-12-14 | 2022-05-17 | 山西晋城无烟煤矿业集团有限责任公司 | Coal bed gas horizontal well power expanding, pressure relief and permeability increase extraction method |
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| CN206438993U (en) * | 2016-12-16 | 2017-08-25 | 河南宇建科技股份有限公司 | A kind of binary channels is bored and develops integrated device |
| CN107676237A (en) * | 2017-08-04 | 2018-02-09 | 崔迺林 | A kind of hydraulic piston pump reversal valve |
| CN209195258U (en) * | 2018-08-15 | 2019-08-02 | 河南铁福来装备制造股份有限公司 | A kind of box-like Counterboring apparatus of mechanical water power packages |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2544085Y (en) * | 2001-10-26 | 2003-04-09 | 辽河石油勘探局工程技术研究院 | Downhole large diameter reamer |
| CN106194190A (en) * | 2016-08-30 | 2016-12-07 | 河南铁福来装备制造股份有限公司 | A kind of the high-low pressure current of unidirectional filtration can automatically change water cutter from row's powder formula |
| CN106195332A (en) * | 2016-08-30 | 2016-12-07 | 河南铁福来装备制造股份有限公司 | A kind of hydraulic reaming makes the unidirectional filtering type in cave from row's powder high-low pressure current switching valve |
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| CN108979540A (en) | 2018-12-11 |
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Address after: 467000 North Ring Road South, Xinhua District, Pingdingshan City, Henan Province (West of Industrial Park Road, Xinhua District) Applicant after: Tiefulai Equipment Manufacturing Group Co.,Ltd. Address before: 467000 North Ring Road South, Xinhua District, Pingdingshan City, Henan Province (West of Industrial Park Road, Xinhua District) Applicant before: HENAN TIEFULAI EQUIPMENT MANUFACTURING Co.,Ltd. |
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