CN103205517A - Soldering tool connecting device and mounting method thereof - Google Patents
Soldering tool connecting device and mounting method thereof Download PDFInfo
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- CN103205517A CN103205517A CN2013101229070A CN201310122907A CN103205517A CN 103205517 A CN103205517 A CN 103205517A CN 2013101229070 A CN2013101229070 A CN 2013101229070A CN 201310122907 A CN201310122907 A CN 201310122907A CN 103205517 A CN103205517 A CN 103205517A
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Abstract
The invention relates to a soldering tool connecting device and a mounting method thereof. The connecting device comprises a connecting sleeve and an gas-guiding pipe, wherein a soldering tail and a soldering rod are respectively connected with two ends of the connecting sleeve; an air inlet hole and a soldering rod inner hole are respectively communicated with two ends of a soldering tail inner hole formed at the middle of the soldering tail; the gas-guiding pipe comprises an air inlet pipe and an air outlet pipe; one gas-guiding pipe through hole is formed in the air inlet pipe and the air outlet pipe in a sharing manner; the air inlet pipe is in seal fit with the soldering tail inner hole; the air inlet pipe is respectively in insertion fit with the through hole at the middle of the connecting hole and the soldering rod inner hole; a Y-shaped sealing ring is arranged at the air inlet of the soldering rod inner hole and is in seal fit with the outer wall of the air outlet pipe; and the soldering tail inner hole and the soldering rod inner hole are respectively communicated with two ends of the gas-guiding pipe through hole. Based on the design, the connecting device is good in gas tightness, easy to disassemble and assemble, realizes reduction in loss of a drill bit, a soldering rod and an oxygen lance, water and gas conservation as well as reduction in production cost.
Description
Technical field
The present invention relates to the coupling device of a kind of drilling tool or drilling tool, relate in particular to a kind of drilling tool coupling device and installation method thereof, specifically be applicable to the resistance to air loss that improves coupling device, reduce the loss of drill bit, drill steel, oxygen lance, reduce production costs.
Background technology
The tap hole of blast furnace drilling tool is that iron work is to emit the common tool that molten iron uses when tapping a blast furnace operation.In the process of boring saturating blast furnace casting hole, the effect of repeated stresses such as drilling tool will bear under hot environment and reverse, impact endurance test shock, bending, high-speed friction.Along with the propelling of drilling tool drilling depth, the shutoff hole of tapping a blast furnace is increasing with the hardness of " stemming " layer, and temperature is more and more higher, and repeated stress that drilling tool is subjected to is in company with increasing progressively.Therefore, the quick capacity of " stemming " granulated slag in the hole is discharged, and reduces to creep into resistance, effectively cools off drilling tool front end and drill bit, and drill bit is worked in suitable temperature range and stressed condition, is the matter of utmost importance that the drilling tool unit construction must solve.
At present, the drilling tool that China's iron-smelting blast furnace the is commonly used problem of leaking at adapter sleeve place ubiquity.Because the adapter sleeve place exists and to leak, the operating pressure deficiency of drilling tool inside, drill steel front end and drill bit be also because of can not obtaining enough airsheds, water smoke amount, and can not effectively be cooled off.Drill steel front end temperature is raise fast, and stress performance reduces, make the cooling of drill bit slow, lost efficacy fast, the working hour is short.Simultaneously, because drilling tool internal work insufficient pressure, the speed that granulated slag is discharged is slow, amount is little, increases drill bit and creeps into resistance, and the phenomenon that granulated slag stops up the drill bit pore takes place often.Above defective directly translates into: drill steel, drilling life of bit weak point, and the drill bit consumption is big, the production cost height, bit change-over frequency height, labor strength is big, and work efficiency is low.Field worker reduces cost for improving work efficiency, generally takes to add normal atmosphere or increases the water yield, but can not effectively deal with problems like this, often be air pressure and mass area ratio by field worker with own experiential operating, random strong, exist the water yield excessive, the air pressure deficiency, it is more severe to cause granulated slag to become mud to stop up, excessive as air pressure, because obstruction makes backflow back pressure situation is arranged in the drilling tool, then very easily make air compressor machine impaired, reduce air compressor machine work-ing life.
The Chinese patent Granted publication number is CN201560197U, Granted publication day is that the utility model patent on August 25th, 2010 discloses a kind of blast furnace open hole machine drill tool to silk dual seal self-unloading junctor, comprise junctor, the junctor two ends are offered vibrator open holes and drilling tool open holes respectively, between vibrator open holes and drilling tool open holes first through hole is set, first through hole communicates with vibrator open holes and drilling tool open holes respectively, on the vibrator open holes inwall first internal thread is set, on the drilling tool open holes inwall second internal thread is set, vibrator open holes inner bottom is installed first gasket, drilling tool open holes inner bottom is installed second gasket, offer second through hole in the middle of first gasket and second gasket respectively, second through hole communicates with first through hole, offers the self-unloading platform on the junctor outer wall.Though this utility model can play certain sealing effectiveness, it still has following defective:
1, there is defective in the air-tightness of this utility model.This utility model arranges gasket to strengthen air-tightness at parts contact end face, the sealing pad is in the inner relief groove of junctor position, the diameter of relief groove is greater than diameter of screw, and sealing-ring exists internal thread cutting, wearing and tearing gasket to cause the gas leakage risk when mounted; Less than the relief groove diameter, the gasket position is fixing, has the situation because of sealing-ring off center axle shield portions adapter sleeve ventilating pit as the gasket external diameter, causes the interior air-flow of coupling device not smooth.
2, this utility model can not realize the Fast Installation of drill steel, has limited its use range.
Summary of the invention
The objective of the invention is to overcome that the resistance to air loss that exists in the prior art is not good, the defective of narrow application range, provide a kind of resistance to air loss drilling tool coupling device and installation method thereof good, applied widely.
For realizing above purpose, technical solution of the present invention is:
A kind of drilling tool coupling device comprises adapter sleeve, bit shank and drill steel, and the inside of described adapter sleeve offers bit shank successively thread groove, adapter sleeve middle part through hole and drill steel mounting groove are installed, and the inside correspondence of described bit shank, drill steel offers bit shank endoporus, drill steel endoporus; Described bit shank is installed thread groove and is connected with bit shank, and the drill steel mounting groove is connected with drill steel, and offers air inlet port at the bit shank endoporus, and air inlet port is connected with the gas injection sebific duct of taphole drilling machine;
Described bit shank coupling device also comprises airway;
Described airway comprises inlet pipe and the escape pipe that communicates, and is provided with same airway through hole altogether in inlet pipe, escape pipe inside; The outer wall of described inlet pipe and bit shank endoporus are sealed and matched, and the outer wall of escape pipe all inserts and cooperates with adapter sleeve middle part through hole, drill steel endoporus, and the two ends of airway through hole communicate with bit shank endoporus, drill steel endoporus respectively.
Described adapter sleeve middle part through hole is installed thread groove by the first sealing counterbore with bit shank and is communicated, and the aperture of the first sealing counterbore is greater than the aperture of adapter sleeve middle part through hole; The junction of described inlet pipe, escape pipe is provided with the spacing ring that matches with the first sealing counterbore, and the first sealing counterbore cooperates with the tail end sealing of bit shank by spacing ring.
The aperture of described airway through hole is more than or equal to the bore of gas injection sebific duct, and the thickness of pipe of described inlet pipe is more than or equal to 1 millimeter, and the thickness of described spacing ring is more than or equal to 4 millimeters, and the difference of spacing ring thickness and the first sealing counterbore thickness is 1.0 millimeters of 0.2 Hao Mi –.
The position of nearly drill steel endoporus inlet mouth is arranged with the sealing-ring that is sealed and matched with the drill steel endoporus on the described escape pipe, and the outer wall of sealing circle and escape pipe is sealed and matched.
The inlet mouth place of described inlet pipe is provided with chamfering in the air inlet; The outlet side of described bit shank endoporus is provided with the installation chamfering; The outlet side of described escape pipe is provided with the outer chamfering of escape pipe; Described drill steel endoporus inlet mouth place is disposed with first along airintake direction chamfering in interior chamfering, sealing-ring mounting groove and second installation is installed, and described sealing-ring mounting groove is sealed and matched by sealing-ring and escape pipe.
Described airway adopts PET, PE or PVC plastics to make.
Described drill steel matches with the drill steel mounting groove by latch.
Described drill steel mounting groove is thread groove, drill steel mounting groove and drill steel thread fit.
The diameter of described drill steel equals the bit shank diameter, described bit shank is installed thread groove and is communicated by the end of the first sealing counterbore with adapter sleeve middle part through hole, the other end of adapter sleeve middle part through hole communicates with the drill steel mounting groove by the second sealing counterbore, the described first sealing counterbore is identical with the second sealing counter bore structure, and it is identical with drill steel mounting groove structure that described bit shank is installed thread groove.
A kind of installation method of drilling tool coupling device may further comprise the steps:
Step 1: the inlet pipe of airway is inserted the bit shank endoporus along chamfering is installed, contact with bit shank until spacing ring, at this moment, bit shank endoporus and inlet pipe are sealed and matched, and airway, bit shank assembling finish;
Step 2: the bit shank that above-mentioned assembling finishes is installed in the thread groove insertion adapter sleeve along bit shank, after the insertion, one end of escape pipe is positioned at adapter sleeve middle part through hole, the other end extends in the drill steel mounting groove, spacing ring is arranged in the first sealing counterbore, at this moment, is between first sealing counterbore and the spacing ring and is sealed and matched, be between the installation chamfering of spacing ring and bit shank and be sealed and matched, adapter sleeve, bit shank assembling finish;
Step 3: drill steel is inserted in the drill steel mounting groove of the adapter sleeve that above-mentioned assembling finishes, during insertion, chamfering entered the drill steel endoporus in chamfering, sealing-ring and second were installed in the outer chamfering of escape pipe on the airway was installed by first successively, after the insertion, one end of escape pipe is positioned at adapter sleeve middle part through hole, the other end of escape pipe extends in the drill steel endoporus, escape pipe is by being sealed and matched between sealing-ring and the sealing-ring mounting groove, and described sealing-ring is arranged at nearly drill steel endoporus inlet mouth position in the drill steel endoporus; After finishing above-mentioned steps, check whether the connection between each parts is firm, as be connected firmly, then finish installation.
Compared with prior art, beneficial effect of the present invention is:
1, the design of the airway in a kind of drilling tool coupling device of the present invention has guaranteed the resistance to air loss of coupling device, and specific as follows: at first, the outer wall of inlet pipe and bit shank endoporus are sealed and matched in the airway, make the outlet side of bit shank can not leak gas; Secondly, the first sealing counterbore cooperates with spacing ring is spacing, has realized the fixedly effect of airway, simultaneously further shutoff bit shank endoporus; Again, escape pipe and the sealing-ring of airway are sealed and matched, and the slit between escape pipe and the drill steel endoporus is sealed.So the air inlet of airway, outlet side have all reached good sealing effectiveness among the design, guarantee that coupling device is air tight, leak, and then guarantee that the operating air pressure in the drill steel is up to standard, thereby reach the shortening opening time, optimize iron mouth completed state, the effect of saving the oxygen lance consumption.Data show: the prior art tapping outlet time spent is 2 – 3.5 minutes, and using behind the design the tapping outlet time spent is 56 seconds – 1 minute and 20 seconds, when economizing on about 120 seconds; Prior art is opened an iron mouth with 3 drill bits of 1 –, opens an iron mouth at most with 1 drill bit after using the design, as stops boring and move back bar assurance promptly and accurately, 1 drill bit even can drive two stoves; Every month oxygen lance consumption of prior art is more than 2 tons, and every month oxygen lance consumption saves about 45% 1 ton more behind use the design.Therefore, the design's resistance to air loss is good, guaranteed that the operating air pressure in the drill steel is up to standard, reaches the effect of solar term water saving, save energy, minimizing loss, thereby reduced production cost.
2, the airway in a kind of drilling tool coupling device of the present invention adopts PET, PE or PVC plastics to make, and the airway that above-mentioned plastic material is made has certain snappiness, has ensured being sealed and matched between airway and the miscellaneous part.Simultaneously, plastic material has excellent physical and mechanical properties, has creep resistance, antifatigue, rub resistance, characteristics that dimensional stability is good; Especially the PET plastics have good creep resistance, antifatigue, resistance to elevated temperatures, can be in 120 degree celsius temperature scopes life-time service, short-term is used can anti-150 celsius temperatures, and the working temperature of airway makes PET become optimum airway and makes material below 100 degrees centigrade.Therefore, the material of airway is selected rationally among the design, and the airway resistance to air loss is good, creep resisting ability is strong.
3, the structure of airway arranges rationally in a kind of drilling tool coupling device of the present invention, be embodied in the following aspects: at first, the aperture of described airway through hole is more than or equal to the bore of gas injection sebific duct, make that the interior air-flow of drilling tool is unobstructed, do not have and reflux, the thickness of pipe of inlet pipe makes the physical strength of inlet pipe tube wall reach design requirements more than or equal to 1 millimeter simultaneously; Secondly, the thickness of spacing ring is more than or equal to 4 millimeters, make the physical strength of spacing ring reach design requirements, thereby realize limiting the effect of airway position, and spacing ring thickness and the first sealing counterbore thickness difference be 1.0 millimeters of 0.2 Hao Mi –, spacing ring protrudes from the first sealing counterbore slightly, but chamfering is installed in its protuberance shutoff, has played the effect of enhanced leaktightness.Therefore, the design's airway ventilation circulation is smooth, resistance to air loss is good, mechanical property is good.
4, the drill steel of a kind of drilling tool coupling device of the present invention can adopt with bit shank and be threaded or the pin key mode of connection, drill steel at different model adopts different adapter sleeves, wherein, the mode that is threaded with the drill steel mounting groove of drill steel is applicable to the footpath is two and is threaded and reducing is two is threaded; The mode of connection that drill steel matches by latch and drill steel mounting groove is applicable to that push-in single thread is connected.Since with the footpath two be threaded, reducing two be threaded to be connected with push-in single thread all belong to the mode of connection commonly used that has drill steel now, make the design meet more and produce reality, only need existing drill steel, bit shank parts are done less transformation, can realize with existing installation adaptively, enlarge the design's the scope of application.Simultaneously, the design not only can be applicable to blast furnace drilling tool field, and can be applicable in the rock drill drilling tool.Therefore, the realistic application demand of the design, the scope of application is extensive.
5, a kind of drilling tool coupling device of the present invention inserts bit shank with airway earlier when mounted, then bit shank is inserted adapter sleeve, at last drill steel is inserted adapter sleeve; Because drill steel is the parts of frequent dismounting, the outlet side of escape pipe is provided with the outer chamfering of escape pipe among the design, drill steel endoporus inlet mouth place is disposed with first along airintake direction chamfering in interior chamfering, sealing-ring and second installation is installed, the design of chamfering makes that not only drill steel is more easy to assemble, and the mechanical wear that the phase mutual friction causes when having reduced to install.Simultaneously, sealing-ring can be selected O RunddichtringO or y-type seal ring for use, preferred y-type seal ring.Because, the V-type mouth structure of y-type seal ring under high-pressure situations outside tension force stronger, sealing effectiveness is better, beat in drilling tool shake and can better be stabilized in the sealing-ring mounting groove in the process, be difficult for departing from the sealing-ring mounting groove because shaking to beat, and when using the O RunddichtringO, sealing-ring mounting groove situation can appear departing from once in a while.So adopt the y-type seal ring sealing to ensure the resistance to air loss of coupling device.Therefore, the design's good airproof performance, easy for installation, realistic service requirements.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the sectional view of airway among Fig. 1.
Fig. 3 is the sectional view of bit shank among Fig. 1.
Fig. 4 is the sectional view of drill steel among Fig. 1.
Fig. 5 is the sectional view of sealing-ring among Fig. 1.
Fig. 6 is the structural representation of the embodiment of the invention 1.
Fig. 7 is the sectional view of adapter sleeve among Fig. 6.
Fig. 8 is the structural representation of the embodiment of the invention 2.
Fig. 9 is the sectional view of adapter sleeve among Fig. 8.
Figure 10 is the structural representation of the embodiment of the invention 3.
Figure 11 is the sectional view of adapter sleeve among Figure 10.
Among the figure: adapter sleeve 1, bit shank is installed thread groove 11, drill steel mounting groove 12, adapter sleeve middle part through hole 13, the first sealing counterbore 14, the second sealing counterbore 15, airway 2, inlet pipe 21, spacing ring 22, escape pipe 23, airway through hole 24, chamfering 25 in the air inlet, the outer chamfering 26 of escape pipe, sealing-ring 3, bit shank 4, bit shank endoporus 41, chamfering 42 is installed, air inlet port 43, drill steel 5, drill steel endoporus 51, first installs interior chamfering 52, second installs interior chamfering 53, sealing-ring mounting groove 54, drill steel endoporus inlet mouth 55, latch 6.
Embodiment
The present invention is further detailed explanation below in conjunction with description of drawings and embodiment.
Referring to figure 1 – Figure 11, a kind of drilling tool coupling device, comprise adapter sleeve 1, bit shank 4 and drill steel 5, the inside of described adapter sleeve 1 offers bit shank successively thread groove 11, adapter sleeve middle part through hole 13 and drill steel mounting groove 12 is installed, and the inside correspondence of described bit shank 4, drill steel 5 offers bit shank endoporus 41, drill steel endoporus 51; Described bit shank is installed thread groove 11 and is connected with bit shank 4, and drill steel mounting groove 12 is connected with drill steel 5, and offers air inlet port 43 at bit shank endoporus 41, and air inlet port 43 is connected with the gas injection sebific duct of taphole drilling machine;
Described bit shank coupling device also comprises airway 2;
Described airway 2 comprises the inlet pipe 21 and escape pipe 23 that communicates, and is provided with same airway through hole 24 altogether in inlet pipe 21, escape pipe 23 inside; The outer wall of described inlet pipe 21 and bit shank endoporus 41 are sealed and matched, and the outer wall of escape pipe 23 all inserts and cooperates with adapter sleeve middle part through hole 13, drill steel endoporus 51, and the two ends of airway through hole 24 communicate with bit shank endoporus 41, drill steel endoporus 51 respectively.
Described adapter sleeve middle part through hole 13 is installed thread groove 11 by the first sealing counterbore 14 with bit shank and is communicated, and the aperture of the first sealing counterbore 14 is greater than the aperture of adapter sleeve middle part through hole 13; The junction of described inlet pipe 21, escape pipe 23 is provided with spacing ring 22, the first sealing counterbores 14 that match with the first sealing counterbore 14 and cooperates with the tail end sealing of bit shank 4 by spacing ring 22.
The aperture of described airway through hole 24 is more than or equal to the bore of gas injection sebific duct, the thickness of pipe of described inlet pipe 21 is more than or equal to 1 millimeter, the thickness of described spacing ring 22 is more than or equal to 4 millimeters, and the difference of spacing ring 22 thickness and the first sealing counterbore, 14 thickness is 1.0 millimeters of 0.2 Hao Mi –.
The position of nearly drill steel endoporus inlet mouth 55 is arranged with the sealing-ring 3 that is sealed and matched with drill steel endoporus 51 on the described escape pipe 23, and sealing circle 3 is sealed and matched with the outer wall of escape pipe 23.
The inlet mouth place of described inlet pipe 21 is provided with chamfering 25 in the air inlet; The outlet side of described bit shank endoporus 41 is provided with installs chamfering 42; The outlet side of described escape pipe 23 is provided with the outer chamfering 26 of escape pipe; Described drill steel endoporus inlet mouth 55 places are disposed with first along airintake direction chamfering 53 in interior chamfering 52, sealing-ring mounting groove 54 and second installation are installed, and described sealing-ring mounting groove 54 is sealed and matched by sealing-ring 3 and escape pipe 23.
Described airway 2 adopts PET, PE or PVC plastics to make.
Described drill steel 5 matches with drill steel mounting groove 12 by latch 6.
Described drill steel mounting groove 12 is thread groove, drill steel mounting groove 12 and drill steel 5 thread fit.
The diameter of described drill steel 5 equals bit shank 4 diameters, described bit shank is installed thread groove 11 and is communicated by the end of the first sealing counterbore 14 with adapter sleeve middle part through hole 13, the other end of adapter sleeve middle part through hole 13 communicates with drill steel mounting groove 12 by the second sealing counterbore 15, the described first sealing counterbore 14 is identical with the second sealing counterbore, 15 structures, and it is identical with drill steel mounting groove 12 structures that described bit shank is installed thread groove 11.
A kind of installation method of drilling tool coupling device may further comprise the steps:
Step 1: the inlet pipe 21 of airway 2 is inserted bit shank endoporus 41 along chamfering 42 is installed, contact with bit shank 4 until spacing ring 22, at this moment, bit shank endoporus 41 is sealed and matched with inlet pipe 21, and airway 2, bit shank 4 assemblings finish;
Step 2: the bit shank 4 that above-mentioned assembling finishes is installed in the thread groove 11 insertion adapter sleeves 1 along bit shank, after the insertion, one end of escape pipe 23 is positioned at adapter sleeve middle part through hole 13, the other end extends in the drill steel mounting groove 12, spacing ring 22 is arranged in the first sealing counterbore 14, at this moment, is between first sealing counterbore 14 and the spacing ring 22 and is sealed and matched, be between the installation chamfering 42 of spacing ring 22 and bit shank 4 and be sealed and matched, adapter sleeve 1, bit shank 4 assemblings finish;
Step 3: drill steel 5 is inserted in the drill steel mounting groove 12 of the adapter sleeve 1 that above-mentioned assembling finishes, during insertion, chamfering 53 entered drill steel endoporus 51 in chamfering 52, sealing-ring 3 and second were installed in the outer chamfering 26 of escape pipe on the airway 2 was installed by first successively, after the insertion, one end of escape pipe 23 is positioned at adapter sleeve middle part through hole 13, the other end of escape pipe 23 extends in the drill steel endoporus 51, escape pipe 23 is by being sealed and matched between sealing-ring 3 and the sealing-ring mounting groove 54, and described sealing-ring 3 is arranged at nearly drill steel endoporus inlet mouth 55 positions in the drill steel endoporus 51; After finishing above-mentioned steps, check whether the connection between each parts is firm, as be connected firmly, then finish installation.
Principle of the present invention is described as follows:
1, the detailed design of component structural:
A, referring to figure 1 – Fig. 5, at present, tap hole of blast furnace air feed sebific duct bore commonly used is more than or equal to 6 millimeters, tap hole of blast furnace uses bit shank endoporus 41 apertures more than or equal to 8 millimeters, the aperture of airway through hole 24 is 20 millimeters of 6 Hao Mi –, the aperture of described airway through hole 24 is more than or equal to the bore of gas injection sebific duct, the inlet mouth place of inlet pipe 21 is provided with chamfering 25 in the air inlet, chamfering 25 has the effect of drainage in the air inlet, above-mentioned design has made things convenient for the gas in the gas injection sebific duct to pass through air inlet port 43, gas in the bit shank endoporus 41 enters airway through hole 24, has prevented from entering the situation that does not freely cause gas backstreaming because of the gas in the bit shank endoporus 41.
B, referring to Fig. 3, the outlet side of bit shank endoporus 41 is provided with installs chamfering 42, has made things convenient for the aligning of inlet pipe 21 to install.
C, referring to figure 1 – Fig. 5, the outlet side of escape pipe 23 is provided with the outer chamfering 26 of escape pipe, the inlet mouth place of drill steel endoporus 51 is disposed with first along airintake direction chamfering 53 in interior chamfering 52, sealing-ring mounting groove 54 and second installation is installed, described sealing-ring mounting groove 54 is sealed and matched by sealing-ring 3 and escape pipe 23, and the aligning that has made things convenient for escape pipe 23 that arranges of above-mentioned chamfering is installed; Because drill steel 5 is the parts that need frequent dismounting, adopt sealing-ring 3 to seal, be easier to dismounting, as the situation of gas leakage occurring causing because of sealing-ring 3 wearing and tearing, only need change sealing-ring 3 and can deal with problems.
D, referring to Fig. 5, the thickness span of spacing ring 22 is 10 millimeters of 4 Hao Mi –, spacing ring 22 thickness and first sealing counterbore 14 thickness difference be 1.0 millimeters of 0.2 Hao Mi –; Spacing ring 22 has played the fixedly position and the effect that seals bit shank endoporus 41 ends of airway 2, and is too thin as spacing ring 22 thickness, then can not reach the fixedly physical strength of airway 2; Too thick as spacing ring 22 thickness, then can influence the anti-repeated stress performance of coupling device integral body.
E, sealing-ring 3 can be selected O RunddichtringO or y-type seal ring for use, preferred y-type seal ring.Because, the V-type mouth structure of y-type seal ring under high-pressure situations outside tension force stronger, sealing effectiveness is better, beats in drilling tool shake can better be stabilized in the process in the sealing-ring mounting groove 54, is difficult for departing from sealing-ring mounting groove 54 because shaking to beat; And when using the O RunddichtringO, sealing-ring mounting groove 54 situations can appear departing from once in a while.
2, the material of airway 2 is selected:
Because airway 2 selects plastic production for use, the character of plastic material itself is good, and wear-resisting, impact-resistant have certain elasticity simultaneously, and above-mentioned performance meets the design to the requirement of airway 2 mechanical propertys.During work, the working temperature of airway 2 is lower than 100 degrees centigrade, and lower temperature can not make the physics of plastics, chemical property change, particularly the PET plastics, its performance that is difficult for creep makes airway 2 not yielding, has reduced airway 2 and has caused the possible of gas leakage because of deformation.
The PET plastics: PET(Polyethylene terephthalate) plastics are that poly terephthalic acid class plastics are oyster white or polymkeric substance light yellow, highly crystalline, and surface smoothing is glossy.Have good mechanical property in wide temperature range, the life-time service temperature can reach 120 degrees centigrade, and electrical insulating property is good, even under the high temperature high frequency, its electrical property is still better, has creep resistance simultaneously, resistance to fatigue, rub resistance, the characteristics that dimensional stability is good.
The advantage of PET plastics:
A, the good mechanical performance is arranged, resistance to impact shock is big, and folding resistance is good.
B, oil resistant, anti-fat, anti-diluted acid, diluted alkaline, anti-most of solvents.
C, have good high-and low-temperature resistance performance, can be in 120 degree celsius temperature scopes life-time service, short-term is used can anti-150 celsius temperatures, can anti-negative 70 degrees centigrade of low temperature, and high temperature, low temperature are very little to its mechanical property influence.
D, gas and vapor permeability are low, and good choke, block-water performance are arranged.
E, creep resistance, resistance to fatigue, rub resistance, dimensional stability are all fine, avoided long-time use after, airway 2 causes the situation of gas leakage because of creep.
The PE plastics: PE(Polyethylene) plastics are vinyon, have erosion resistance, and electrical insulating property, low pressure polyethylene are suitable for making corrosion-resistant part and insulating part; Ultrahigh molecular weight polyethylene(UHMWPE) is suitable for making damping, wear-resisting and driving parts.
PVC plastics: PVC (polyvinyl chloride) plastics are igelite, and pure polyvinyl chloride (PVC) RESINS is hard thermoplastic material, and its decomposition temperature and plasticization temperature are very approaching, and physical strength is relatively poor.Therefore, can't mould product processed with polyvinyl chloride (PVC) RESINS, must add softening agent, stablizer, filler etc. to improve performance, make igelite, and then be processed into part.
Selecting first-selected PET plastics about the material of airway 2, secondly is the PE plastics, is the PVC plastics again.
3, the design is with respect to the improvement on the prior art:
Referring to figure 1 – Fig. 5, the design of installing airway 2 additional takes full advantage of the structure space surplus of original drilling tool connecting path design and sets up:
The bore of the gas injection sebific duct that the air inlet port 43 of a, original design bit shank arranges and the aperture difference of bit shank endoporus 41 are more than or equal to 2 millimeters, and the aperture of airway through hole 24 is more than or equal to the bore of gas injection sebific duct, the thickness of pipe of inlet pipe 21 is more than or equal to 1 millimeter, stay the installation surplus just in time for inlet pipe 21, do not influence the normal use of drilling tool.The gas injection sebific duct bore of existing taphole drilling machine is more than or equal to 6 millimeters, and taphole drilling machine uses the aperture of bit shank endoporus 41 more than or equal to 8 millimeters.
B, drill steel 5 are to be made by hollow steel, its thickness of pipe is thicker, drill steel 5 with the length of adapter sleeve combining site more than or equal to 120 millimeters, be subjected to the calmodulin binding domain CaM of stress enough big, under the situation that does not influence its ability that meets with stresses, local processing is done in drill steel endoporus inlet mouth 55 inside, be convenient to the installation of airway 2, sealing-ring 3 is installed between airway 2 and drill steel endoporus 41 simultaneously, has been played the effect of strengthening sealing between airway 2 and the drill steel endoporus 41.
Embodiment 1:
Referring to Fig. 6, Fig. 7, reducing is two to be threaded:
A kind of drilling tool coupling device, comprise adapter sleeve 1, airway 2, bit shank 4 and drill steel 5, the inside of described adapter sleeve 1 offers bit shank successively thread groove 11, adapter sleeve middle part through hole 13 and drill steel mounting groove 12 is installed, and the inside correspondence of described bit shank 4, drill steel 5 offers bit shank endoporus 41, drill steel endoporus 51; Described bit shank is installed thread groove 11 and is threaded with bit shank 4, and drill steel mounting groove 12 is threaded with drill steel 5, and offers air inlet port 43 at bit shank endoporus 41, and air inlet port 43 is connected with the gas injection sebific duct of taphole drilling machine; Described airway 2 comprises the inlet pipe 21 and escape pipe 23 that communicates, and is provided with same airway through hole 24 altogether in inlet pipe 21, escape pipe 23 inside; The outer wall of described inlet pipe 21 and bit shank endoporus 41 are sealed and matched, and the outer wall of escape pipe 23 all inserts and cooperates with adapter sleeve middle part through hole 13, drill steel endoporus 51, and the two ends of airway through hole 24 communicate with bit shank endoporus 41, drill steel endoporus 51 respectively; Described adapter sleeve middle part through hole 13 is installed thread groove 11 by the first sealing counterbore 14 with bit shank and is communicated, and the aperture of the first sealing counterbore 14 is greater than the aperture of adapter sleeve middle part through hole 13; The junction of described inlet pipe 21, escape pipe 23 is provided with spacing ring 22, the first sealing counterbores 14 that match with the first sealing counterbore 14 and cooperates with the tail end sealing of bit shank 4 by spacing ring 22; Drill steel endoporus inlet mouth 55 places on the described drill steel 5 are disposed with first along airintake direction chamfering 53 in interior chamfering 52, sealing-ring mounting groove 54 and second installation are installed, and described sealing-ring mounting groove 54 is sealed and matched by y-type seal ring 3 and escape pipe 23; The aperture of described airway through hole 24 is more than or equal to the bore of gas injection sebific duct, the thickness of pipe of described inlet pipe 21 is more than or equal to 1 millimeter, the thickness of described spacing ring 22 is more than or equal to 4 millimeters, and the difference of spacing ring 22 thickness and the first sealing counterbore, 14 thickness is 1.0 millimeters of 0.2 Hao Mi –; The inlet mouth place of described inlet pipe 21 is provided with chamfering 25 in the air inlet, and the outlet side of described bit shank endoporus 41 is provided with installs chamfering 42, and the outlet side of described escape pipe 23 is provided with the outer chamfering 26 of escape pipe, and described airway 2 adopts the PET plastics to make.
A kind of installation method of drilling tool coupling device may further comprise the steps:
Step 1: the inlet pipe 21 of airway 2 is inserted bit shank endoporus 41 along chamfering 42 is installed, contact with bit shank 4 until spacing ring 22, at this moment, bit shank endoporus 41 is sealed and matched with inlet pipe 21, and airway 2, bit shank 4 assemblings finish;
Step 2: the bit shank 4 that above-mentioned assembling finishes is installed in the thread groove 11 insertion adapter sleeves 1 along bit shank, after the insertion, one end of escape pipe 23 is positioned at adapter sleeve middle part through hole 13, the other end extends in the drill steel mounting groove 12, spacing ring 22 is arranged in the first sealing counterbore 14, at this moment, is between first sealing counterbore 14 and the spacing ring 22 and is sealed and matched, be between the installation chamfering 42 of spacing ring 22 and bit shank 4 and be sealed and matched, adapter sleeve 1, bit shank 4 assemblings finish;
Step 3: drill steel 5 is inserted in the drill steel mounting groove 12 of the adapter sleeve 1 that above-mentioned assembling finishes, during insertion, chamfering 52 in the outer chamfering 26 of escape pipe on the airway 2 is installed by first successively, chamfering 53 entered drill steel endoporus 51 in y-type seal ring 3 and second was installed, after the insertion, one end of escape pipe 23 is positioned at adapter sleeve middle part through hole 13, the other end of escape pipe 23 extends in the drill steel endoporus 51, escape pipe 23 is by being sealed and matched between y-type seal ring 3 and the sealing-ring mounting groove 54, and described y-type seal ring 3 is arranged at nearly drill steel endoporus inlet mouth 55 positions in the drill steel endoporus 51; After finishing above-mentioned steps, check whether the connection between each parts is firm, as be connected firmly, then finish installation.
Embodiment 2:
Referring to Fig. 8, Fig. 9, be threaded with the footpath is two:
The diameter of described drill steel 5 equals bit shank 4 diameters, described bit shank is installed thread groove 11 and is communicated by the end of the first sealing counterbore 14 with adapter sleeve middle part through hole 13, the other end of adapter sleeve middle part through hole 13 communicates with drill steel mounting groove 12 by the second sealing counterbore 15, the described first sealing counterbore 14 is identical with the second sealing counterbore, 15 structures, and it is identical with drill steel mounting groove 12 structures that described bit shank is installed thread groove 11.
Because it is identical with drill steel mounting groove 12 structures that bit shank is installed thread groove 11, the first sealing counterbore 14 is identical with the second sealing counterbore, 15 structures, so the adapter sleeve 1 with the two thread connecting modes in footpath is symmetrical structure, during installation, bit shank 4 and drill steel 5 do not need to recognize that installation direction namely can be fit into adapter sleeve 1, have saved the trouble of identification installation direction when installing.
Embodiment 3:
Referring to Figure 10, Figure 11, push-in single thread connects:
Described drill steel 5 matches with drill steel mounting groove 12 by latch 6.
Utilize the pin key mode of connection to fix, can insert latch 6 fast, to reach fast the fixedly purpose of drill steel 5.And drill steel mounting groove 12 structures are same as the prior art, can realize adaptive with existing parts so the design only needs that drill steel 5, bit shank 4 are done further processing.
Claims (10)
1. drilling tool coupling device, comprise adapter sleeve (1), bit shank (4) and drill steel (5), the inside of described adapter sleeve (1) offers bit shank successively thread groove (11), adapter sleeve middle part through hole (13) and drill steel mounting groove (12) is installed, and the inside correspondence of described bit shank (4), drill steel (5) offers bit shank endoporus (41), drill steel endoporus (51); Described bit shank is installed thread groove (11) and is connected with bit shank (4), drill steel mounting groove (12) is connected with drill steel (5), and offer air inlet port (43) at bit shank endoporus (41), air inlet port (43) is connected with the gas injection sebific duct of taphole drilling machine, it is characterized in that:
Described bit shank coupling device also comprises airway (2);
Described airway (2) comprises the inlet pipe (21) and escape pipe (23) that communicates, and is provided with same airway through hole (24) altogether in inlet pipe (21), escape pipe (23) inside; The outer wall of described inlet pipe (21) and bit shank endoporus (41) are sealed and matched, the outer wall of escape pipe (23) all inserts and cooperates with adapter sleeve middle part through hole (13), drill steel endoporus (51), and the two ends of airway through hole (24) communicate with bit shank endoporus (41), drill steel endoporus (51) respectively.
2. a kind of drilling tool coupling device according to claim 1, it is characterized in that: described adapter sleeve middle part through hole (13) is installed thread groove (11) by the first sealing counterbore (14) and bit shank and is communicated, and the aperture of the first sealing counterbore (14) is greater than the aperture of adapter sleeve middle part through hole (13); The junction of described inlet pipe (21), escape pipe (23) is provided with the spacing ring (22) that matches with the first sealing counterbore (14), and the first sealing counterbore (14) cooperates with the tail end sealing of bit shank (4) by spacing ring (22).
3. a kind of drilling tool coupling device according to claim 2, it is characterized in that: the aperture of described airway through hole (24) is more than or equal to the bore of gas injection sebific duct, the thickness of pipe of described inlet pipe (21) is more than or equal to 1 millimeter, the thickness of described spacing ring (22) is more than or equal to 4 millimeters, and the difference of spacing ring (22) thickness and first sealing counterbore (14) thickness is 1.0 millimeters of 0.2 Hao Mi –.
4. according to claim 1,2 or 3 described a kind of drilling tool coupling devices, it is characterized in that: the position that described escape pipe (23) is gone up nearly drill steel endoporus inlet mouth (55) is arranged with the sealing-ring (3) that is sealed and matched with drill steel endoporus (51), and sealing circle (3) is sealed and matched with the outer wall of escape pipe (23).
5. a kind of drilling tool coupling device according to claim 4 is characterized in that: the inlet mouth place of described inlet pipe (21) is provided with chamfering (25) in the air inlet; The outlet side of described bit shank endoporus (41) is provided with installs chamfering (42); The outlet side of described escape pipe (23) is provided with the outer chamfering (26) of escape pipe; Described drill steel endoporus inlet mouth (55) is located to be disposed with first along airintake direction chamfering (53) in interior chamfering (52), sealing-ring mounting groove (54) and second installation is installed, and described sealing-ring mounting groove (54) is sealed and matched by sealing-ring (3) and escape pipe (23).
6. a kind of drilling tool coupling device according to claim 4 is characterized in that: described airway (2) adopts PET, PE or PVC plastics to make.
7. a kind of drilling tool coupling device according to claim 4, it is characterized in that: described drill steel (5) matches with drill steel mounting groove (12) by latch (6).
8. a kind of drilling tool coupling device according to claim 4, it is characterized in that: described drill steel mounting groove (12) is thread groove, drill steel mounting groove (12) and drill steel (5) thread fit.
9. a kind of drilling tool coupling device according to claim 8, it is characterized in that: the diameter of described drill steel (5) equals bit shank (4) diameter, described bit shank is installed thread groove (11) and is communicated with an end of adapter sleeve middle part through hole (13) by the first sealing counterbore (14), the other end of adapter sleeve middle part through hole (13) communicates with drill steel mounting groove (12) by the second sealing counterbore (15), the described first sealing counterbore (14) is identical with second sealing counterbore (15) structure, and it is identical with drill steel mounting groove (12) structure that described bit shank is installed thread groove (11).
10. the installation method of a kind of drilling tool coupling device according to claim 5, it is characterized in that: described installation method may further comprise the steps:
Step 1: the inlet pipe (21) of airway (2) is inserted bit shank endoporus (41) along chamfering (42) is installed, contact with bit shank (4) until spacing ring (22), at this moment, bit shank endoporus (41) is sealed and matched with inlet pipe (21), and airway (2), bit shank (4) assembling finish;
Step 2: the bit shank (4) that above-mentioned assembling finishes is installed in thread groove (11) the insertion adapter sleeve (1) along bit shank, after the insertion, one end of escape pipe (23) is positioned at adapter sleeve middle part through hole (13), the other end extends in the drill steel mounting groove (12), spacing ring (22) is arranged in the first sealing counterbore (14), at this moment, be between the first sealing counterbore (14) and the spacing ring (22) and be sealed and matched, be between the installation chamfering (42) of spacing ring (22) and bit shank (4) and be sealed and matched, adapter sleeve (1), bit shank (4) assembling finish;
Step 3: drill steel (5) is inserted in the drill steel mounting groove (12) of the adapter sleeve (1) that above-mentioned assembling finishes, during insertion, chamfering (52) in the outer chamfering (26) of escape pipe on the airway (2) is installed by first successively, chamfering (53) entered drill steel endoporus (51) in sealing-ring (3) and second was installed, after the insertion, one end of escape pipe (23) is positioned at adapter sleeve middle part through hole (13), the other end of escape pipe (23) extends in the drill steel endoporus (51), escape pipe (23) is by being sealed and matched between sealing-ring (3) and the sealing-ring mounting groove (54), and described sealing-ring (3) is arranged at nearly drill steel endoporus inlet mouth (55) position in the drill steel endoporus (51); After finishing above-mentioned steps, check whether the connection between each parts is firm, as be connected firmly, then finish installation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310122907.0A CN103205517B (en) | 2013-04-10 | 2013-04-10 | Soldering tool connecting device and mounting method thereof |
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| CN201310122907.0A CN103205517B (en) | 2013-04-10 | 2013-04-10 | Soldering tool connecting device and mounting method thereof |
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| CN103205517B CN103205517B (en) | 2015-04-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112760437A (en) * | 2021-01-11 | 2021-05-07 | 中冶南方工程技术有限公司 | Iron chisel supply unit and blast furnace taphole drilling device |
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| CN101195849A (en) * | 2006-12-08 | 2008-06-11 | 宜昌市燕狮科技开发有限责任公司 | Double seal connecting structure of blast furnace open hole machine drill tool |
| CN201180503Y (en) * | 2007-09-11 | 2009-01-14 | 李明锁 | Drill rod |
| CN201507243U (en) * | 2009-09-03 | 2010-06-16 | 李保顺 | Tail pipe for high-wind-pressure drill bit |
| CN201560197U (en) * | 2009-05-22 | 2010-08-25 | 济南立达新材料开发有限公司 | Double-nipple double-seal auto-disassembling connector for drill tool of blast furnace tapping machine |
| CN203238283U (en) * | 2013-04-10 | 2013-10-16 | 湖北大强钢管钎具有限公司 | Drilling tool connecting device |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101195849A (en) * | 2006-12-08 | 2008-06-11 | 宜昌市燕狮科技开发有限责任公司 | Double seal connecting structure of blast furnace open hole machine drill tool |
| CN201180503Y (en) * | 2007-09-11 | 2009-01-14 | 李明锁 | Drill rod |
| CN201560197U (en) * | 2009-05-22 | 2010-08-25 | 济南立达新材料开发有限公司 | Double-nipple double-seal auto-disassembling connector for drill tool of blast furnace tapping machine |
| CN201507243U (en) * | 2009-09-03 | 2010-06-16 | 李保顺 | Tail pipe for high-wind-pressure drill bit |
| CN203238283U (en) * | 2013-04-10 | 2013-10-16 | 湖北大强钢管钎具有限公司 | Drilling tool connecting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112760437A (en) * | 2021-01-11 | 2021-05-07 | 中冶南方工程技术有限公司 | Iron chisel supply unit and blast furnace taphole drilling device |
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