CN118180446A - Non-magnetic drill collar boring device - Google Patents
Non-magnetic drill collar boring device Download PDFInfo
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- CN118180446A CN118180446A CN202410613011.0A CN202410613011A CN118180446A CN 118180446 A CN118180446 A CN 118180446A CN 202410613011 A CN202410613011 A CN 202410613011A CN 118180446 A CN118180446 A CN 118180446A
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- 239000007788 liquid Substances 0.000 claims abstract description 88
- 230000009467 reduction Effects 0.000 claims abstract description 79
- 238000001816 cooling Methods 0.000 claims abstract description 58
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 239000000110 cooling liquid Substances 0.000 claims abstract description 29
- 238000003860 storage Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000001802 infusion Methods 0.000 claims description 7
- 239000011490 mineral wool Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 230000003044 adaptive effect Effects 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 230000001050 lubricating effect Effects 0.000 abstract description 2
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- 238000010586 diagram Methods 0.000 description 9
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- 238000009434 installation Methods 0.000 description 8
- 238000003754 machining Methods 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 6
- 239000002826 coolant Substances 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 5
- 238000005553 drilling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
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- 238000012986 modification Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
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- 239000012634 fragment Substances 0.000 description 1
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- 230000020169 heat generation Effects 0.000 description 1
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- 230000001502 supplementing effect Effects 0.000 description 1
- 239000008207 working material Substances 0.000 description 1
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- Drilling And Boring (AREA)
Abstract
The invention provides a boring device of a non-magnetic drill collar, and belongs to the technical field of boring devices. The invention comprises an operation platform, a mounting frame and a non-magnetic drill collar, wherein a speed reduction driving mechanism is arranged above the mounting frame, a lifting mechanism for controlling the speed reduction driving mechanism to lift is arranged at the lower end of the mounting frame, a clamping mechanism for clamping the non-magnetic drill collar is arranged on the upper side wall of the operation platform, and the invention further comprises: the adjustable boring assembly, the self-adaptive cooling assembly and the branch noise reduction assembly; the screw is driven by the double-shaft motor, the diameter of the boring hole can be adjusted according to the boring hole requirement, when the extending distance of the boring cutter is increased, the connecting rod pulls the limit baffle to move to increase the opening of the liquid outlet end, and the flow of cooling liquid can be automatically adjusted to meet the cooling and lubricating requirements of boring holes with different specifications; the multi-stage noise level reduction is realized through the synergistic effect of the plurality of groups of pickup grooves and the noise reduction channels, and meanwhile, the acoustic-thermal control branch channel is beneficial to cooling and is also beneficial to breaking and weakening the propagation path of noise during boring.
Description
Technical Field
The invention relates to the technical field of boring devices, in particular to a non-magnetic drill collar boring device.
Background
Non-magnetic drill collars are a tool used to perform drilling operations in a magnetic environment. In magnetic environments, such as areas where the earth's magnetic field is intense or in the context of ships, subsea wells, etc., conventional drilling equipment may be subject to interference from the magnetic field, affecting its accuracy and stability. The design of the non-magnetic drill collar aims to solve the problem, and the drilling equipment is not interfered by an external magnetic field by using non-magnetic materials and a special structure, so that the smooth proceeding of drilling operation is ensured. The non-magnetic drill collar is required to be bored after casting is finished, so that the precision of the inner hole of the drill collar is improved.
The prior non-magnetic drill collar boring device has the following defects when in use: firstly, when boring is carried out on a non-magnetic drill collar, the flow of cooling liquid cannot be automatically adjusted according to the size of a boring cutter, so that insufficient or excessive flow of the cooling liquid can be caused, the machining effect is influenced, the surface of a workpiece is excessively wet due to excessive cooling liquid, the cutting performance is influenced, and the cutter is overheated due to insufficient flow, and the service life and the machining quality of the cutter are influenced; secondly, because the hardness of the non-magnetic drill collar is larger, the cutter can generate resonance and larger noise when boring is carried out, the resonance not only can lead to the abrasion of the cutter to be aggravated, but also can influence the processing quality and the processing precision, and simultaneously, the larger noise can also influence the health of operators, so that the noise pollution of the working environment is increased.
How to invent a non-magnetic drill collar boring device to improve the problems becomes a problem to be solved urgently by the person skilled in the art.
Disclosure of Invention
In order to overcome the defects, the invention provides a non-magnetic drill collar boring device, which aims to solve the problems in the background.
The invention is realized in the following way:
The invention provides a non-magnetic drill collar boring device, which comprises an operation platform, a mounting frame and a non-magnetic drill collar, wherein a speed reduction driving mechanism is arranged above the mounting frame, a lifting mechanism for controlling the speed reduction driving mechanism to lift is arranged at the lower end of the mounting frame, a clamping mechanism for clamping the non-magnetic drill collar is arranged on the upper side wall of the operation platform, and the non-magnetic drill collar boring device further comprises:
The adjustable boring assembly is arranged at the lower end of the speed reduction driving mechanism and can adjust the diameter of the bore of the non-magnetic drill collar according to the requirement;
an adaptive cooling assembly: the self-adaptive cooling assembly is arranged above the adjustable boring assembly speed reduction driving mechanism, and can accurately control the flow of the cooling liquid according to the moving range of the adjustable boring assembly;
branch noise reduction assembly: the branch noise reduction assembly is arranged around the self-adaptive cooling assembly, and can work cooperatively with the self-adaptive cooling assembly to reduce noise of the adjustable boring assembly during working.
Preferably, the adjustable boring assembly comprises a boring cutter and a mounting sleeve, the mounting sleeve is fixedly connected with a shell of the speed reduction driving mechanism, a boring rod is rotatably connected in the mounting sleeve, a sliding groove is formed in the bottom of the boring rod, a double-shaft motor is fixedly connected in the middle of the sliding groove, the boring cutter is in sliding connection with the sliding groove, a screw is fixedly connected to the output end of the double-shaft motor, the screw is in threaded connection with the boring cutter, and a thread groove meshed with the external thread of the screw is formed in the boring cutter.
Preferably, the lower extreme lateral wall of installation sleeve is provided with the external screw thread, the upper end and the output fixed connection of speed reduction actuating mechanism of boring bar, installation sleeve's lower extreme threaded connection has the fastening sleeve, fastening sleeve's inner wall is provided with the screw thread groove with installation sleeve lower extreme external screw thread engaged with, the outside of boring bar is fixed and is provided with the sealing plug, the lateral wall of sealing plug tightly supports with installation sleeve's inner chamber oblique lateral wall, be provided with between installation sleeve inner chamber top and the boring bar and deposit the liquid space.
Preferably, the self-adaptive cooling assembly comprises an infusion hose fixedly connected to the side wall of a mounting sleeve and a cooling channel arranged inside a boring bar, the infusion hose is in through connection with a liquid storage space, the liquid storage space is in sealed arrangement with the cooling channel, a liquid storage chamber is arranged at the lower end of the cooling channel, a liquid outlet end and a liquid outlet cavity are arranged at the bottom end of the liquid storage chamber, the liquid outlet end penetrates through the side walls of the liquid storage chamber and the liquid outlet cavity respectively, a limit baffle is connected to the liquid outlet end in a sliding manner, a connecting rod and a buffer spring are fixedly connected to the side wall of the limit baffle, the end part of the buffer spring far away from the limit baffle is fixedly connected with the inner wall of the liquid outlet cavity, and the end part of the connecting rod penetrates through the side wall of the boring bar and is fixedly connected with the upper side wall of the boring bar.
Preferably, the self-adaptive cooling assembly further comprises a liquid outlet hole formed in the lower side wall of the liquid outlet cavity in a penetrating mode and a spraying cavity formed in the boring cutter in a penetrating mode, the liquid inlet hole is formed in the position, close to the upper side wall of the double-shaft motor, of the spraying cavity in a penetrating mode, a nozzle is arranged on the side wall of the spraying cavity, and the end portion of the nozzle penetrates through the outer side wall of the boring cutter.
Preferably, the liquid outlet hole is arranged close to the outer side wall of the boring bar, the length of the liquid outlet hole is larger than that of the liquid inlet hole, the liquid outlet hole and the liquid inlet hole are arranged in a sliding sealing mode, the cross section of the limiting baffle is in a T-shaped mode, the cross section of the connecting bar is in an L-shaped mode, a gap exists between the side wall of the limiting baffle and the side wall of the liquid outlet cavity, and the end portion of the liquid conveying hose is in through connection with the output end of the cooling liquid output pump.
Preferably, the branch noise reduction assembly comprises a plurality of sound pickup grooves which are formed in the side wall of the sound-heat control branch passage and the side wall of the boring bar at equal intervals, a plurality of noise reduction channels are arranged between the adjacent sound pickup grooves, the noise reduction channels are distributed along the central axis of the boring bar at equal intervals in an annular mode, the end parts of the noise reduction channels penetrate through the side wall of the sound pickup grooves respectively, and the end parts of the noise reduction channels are connected with microporous dust covers in a clamping mode.
Preferably, the inner wall of the noise reduction channel is provided with porous reticular rock wool, the cross section of the noise reduction channel is in a horn-shaped arrangement in an up-down symmetrical mode, the aperture of the middle part of the noise reduction channel is larger than that of the end part of the noise reduction channel, the end part of the sound and heat control branch channel penetrates through the inner wall of the cooling channel, the sound and heat control branch channel is in a wavy arrangement and is arranged in a matched mode with the concave-convex part of the noise reduction channel, and a heat insulation layer is arranged between the cooling channel and the sound and heat control branch channel.
The beneficial effects of the invention are as follows:
The screw is driven by the double-shaft motor, so that the boring cutter moves back and forth in the chute, an operator is allowed to accurately adjust the diameter of the boring according to specific boring requirements, and the boring cutter does not need to be replaced or subjected to complicated manual adjustment, so that the machining precision is improved, and the operation is more convenient; when the extending distance of the boring cutter is increased, the connecting rod pulls the limiting baffle to move to increase the opening of the liquid outlet end, more cooling liquid is allowed to flow out, and the cutting area receives more lubrication and cooling, so that the temperature of the cutter and the workpiece is maintained in a reasonable range, and the flow of the cooling liquid is not required to be automatically regulated by an operator to meet the cooling and lubricating requirements of boring holes with different specifications;
the noise level when boring is reduced in multiple stages through the synergistic effect of the plurality of groups of pickup grooves and the noise reduction channels, meanwhile, the specially designed branch channel of the sound-heat control branch channel has the functions of heat dissipation and noise reduction, when the opening of the liquid outlet end is increased, the cooling liquid in the sound-heat control branch channel is increased in unit time, the wave-shaped design of the heat dissipation control branch channel increases the turbulence degree when fluid flows through, which means that the cooling liquid is contacted with the inner wall of the branch channel more frequently, the heat exchange rate can be improved, because more heat can be taken away by the turbulence, the cooling liquid can absorb and transmit the heat generated by the operation of equipment more effectively, the turbulence flow not only can dissipate heat, but also can scatter sound waves, the linear propagation of the sound waves is reduced, and the heat dissipation path is helped to be disturbed and weakened, and double control of the sound waves and the heat during boring is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a non-magnetic drill collar boring device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a back structure of a non-magnetic drill collar boring device according to an embodiment of the present invention;
FIG. 3 is a schematic view of a boring bar structure of a non-magnetic drill collar boring device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a deceleration driving mechanism of a non-magnetic drill collar boring device according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a front cross-sectional structure of a non-magnetic drill collar boring device according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a cross-sectional structure of a boring bar of a non-magnetic drill collar boring device according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of an enlarged structure of a non-magnetic drill collar boring device A according to an embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view of an adaptive cooling assembly for a non-magnetic drill collar boring device according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a self-adaptive cooling assembly of a non-magnetic drill collar boring device according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of an explosion structure of an adaptive cooling assembly of a non-magnetic drill collar boring device according to an embodiment of the present invention;
FIG. 11 is a schematic diagram of a boring cutter cross-section structure of a non-magnetic drill collar boring device according to an embodiment of the present invention.
In the figure: 1. an operating platform; 2. a mounting frame; 3. a deceleration driving mechanism; 4. a clamping mechanism; 5. a lifting mechanism; 6. boring bar; 7. a cooling channel; 8. a sound pick-up groove; 9. boring cutter; 10. a non-magnetic drill collar; 11. an infusion hose; 12. a mounting sleeve; 13. a sealing plug; 14. a fastening sleeve; 15. a biaxial motor; 16. a screw; 701. an acoustic-thermal control branch; 702. a liquid storage chamber; 703. a liquid outlet end; 704. a limit baffle; 705. a liquid outlet cavity; 706. a buffer spring; 707. a connecting rod; 708. a liquid outlet hole; 801. a noise reduction channel; 802. a microporous dust cap; 901. a spray cavity; 902. a liquid inlet hole; 903. a spout.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Examples
Referring to fig. 1-5, a non-magnetic drill collar boring device, including operation platform 1, mounting bracket 2 and non-magnetic drill collar 10, the top of mounting bracket 2 is provided with speed reduction actuating mechanism 3, and the lower extreme of mounting bracket 2 is provided with the elevating system 5 that control speed reduction actuating mechanism 3 goes up and down, and operation platform 1 goes up the lateral wall and is provided with the fixture 4 that carries out the centre gripping to non-magnetic drill collar 10, still includes:
an adjustable boring assembly: the adjustable boring assembly is arranged at the lower end of the speed reduction driving mechanism 3 and can adjust the diameter of the boring of the non-magnetic drill collar 10 according to the requirement;
an adaptive cooling assembly: the self-adaptive cooling assembly is arranged above the adjustable boring assembly speed reduction driving mechanism 3, and can accurately control the flow of the cooling liquid according to the moving range of the adjustable boring assembly;
Branch noise reduction assembly: the branch noise reduction assembly is arranged around the self-adaptive cooling assembly and can work cooperatively with the self-adaptive cooling assembly to reduce noise of the adjustable boring assembly during working;
Further, the adjustable boring assembly comprises a boring cutter 9 and an installation sleeve 12, the installation sleeve 12 is fixedly connected with a shell of the speed reduction driving mechanism 3, a boring rod 6 is rotatably connected in the installation sleeve 12, a chute is arranged at the bottom of the boring rod 6, a double-shaft motor 15 is fixedly connected in the middle of the chute, the boring cutter 9 is in sliding connection with the chute, the output end of the double-shaft motor 15 is fixedly connected with a screw 16, the screw 16 is in threaded connection with the boring cutter 9, a thread groove meshed with the external thread of the screw 16 is formed in the boring cutter 9, and when the double-shaft motor 15 is started, the boring cutter 9 can be controlled to slide in the chute under the action of the screw 16, so that boring requirements of different apertures can be carried out according to requirements;
It should be noted that: the side wall of the lower end of the mounting sleeve 12 is provided with external threads, the upper end of the boring bar 6 is fixedly connected with the output end of the speed reduction driving mechanism 3, the lower end of the mounting sleeve 12 is in threaded connection with a fastening sleeve 14, the inner wall of the fastening sleeve 14 is provided with a thread groove meshed with the external threads of the lower end of the mounting sleeve 12, the outer side of the boring bar 6 is fixedly provided with a sealing plug 13, the side wall of the sealing plug 13 is tightly abutted against the inclined side wall of the inner cavity of the mounting sleeve 12, the sealing of the joint is ensured, and a liquid storage space is arranged between the top of the inner cavity of the mounting sleeve 12 and the top end of the boring bar 6;
Referring to fig. 6-11, the self-adaptive cooling assembly comprises an infusion hose 11 fixedly connected to the side wall of a mounting sleeve 12 and a cooling channel 7 arranged inside a boring bar 6, the infusion hose 11 is in through connection with a liquid storage space, the liquid storage space and the cooling channel 7 are sealed, so that no leakage of cooling liquid is avoided, a liquid storage chamber 702 is arranged at the lower end of the cooling channel 7, a liquid outlet end 703 and a liquid outlet cavity 705 are arranged at the bottom end of the liquid storage chamber 702, the liquid outlet end 703 penetrates through the side walls of the liquid storage chamber 702 and the liquid outlet cavity 705 respectively, a limit baffle 704 is slidingly connected inside the liquid outlet end 703, a connecting rod 707 and a buffer spring 706 are fixedly connected to the side wall of the limit baffle 704, the end part of the buffer spring 706 far away from the limit baffle 704 is fixedly connected with the inner wall of the liquid outlet cavity 705, the buffer spring 706 can elastically buffer the limit baffle 704, the end part of the connecting rod 707 penetrates through the side wall of the boring bar 6 and is fixedly connected with the upper side wall of a boring bar 9, and when the boring bar 9 moves, the limit baffle is driven by the connecting rod 707, and then the cooling liquid entering the liquid outlet cavity 705 can be controlled;
The self-adaptive cooling assembly further comprises a liquid outlet hole 708 which is formed in the lower side wall of the liquid outlet cavity 705 in a penetrating manner and a spray cavity 901 which is formed in the boring cutter 9 in a penetrating manner, wherein a liquid inlet hole 902 is formed in the spray cavity 901 close to the upper side wall of the double-shaft motor 15 in a penetrating manner, cooling liquid in the liquid outlet cavity 705 enters the spray cavity 901 through a gap between the liquid outlet hole 708 and the liquid inlet hole 902, a nozzle 903 is formed in the side wall of the spray cavity 901, the end part of the nozzle 903 penetrates through the outer side wall of the boring cutter 9, and the cooling liquid entering the spray cavity 901 flows out through the nozzle 903;
It should be noted that: the liquid outlet 708 is arranged close to the outer side wall of the boring bar 6, the length of the liquid outlet 708 is larger than that of the liquid inlet 902, the liquid outlet 708 and the liquid inlet 902 are arranged in a sliding sealing manner, so that cooling liquid cannot flow out of a gap between the boring cutter 9 and the liquid outlet cavity 705, the cross section of the limiting baffle 704 is in a T shape, the cross section of the connecting rod 707 is in an L shape, a gap exists between the side wall of the limiting baffle 704 and the side wall of the liquid outlet cavity 705, cooling liquid entering the liquid outlet cavity 705 can flow through two sides of the limiting baffle 704, and the end part of the liquid delivery hose 11 is in through connection with the output end of the cooling liquid output pump and is used for supplementing cooling liquid to the inside of the cooling channel 7;
Further, the branch noise reduction assembly comprises a sound-heat control branch 701 and a plurality of pickup grooves 8 which are equidistantly arranged on the side wall of the boring bar 6, the pickup grooves 8 are used for capturing sound waves generated during operation of the conduction equipment, a plurality of noise reduction channels 801 are arranged between the adjacent pickup grooves 8, the noise reduction channels 801 are distributed at equal intervals in a ring shape along the central axis of the boring bar 6, surrounding noise can be uniformly absorbed, the ends of the noise reduction channels 801 penetrate through the side wall of the pickup grooves 8 respectively, the ends of the noise reduction channels 801 are clamped with microporous dust covers 802, chips and other fragments are prevented from entering the noise reduction channels 801, so that maintenance requirements are reduced, and the service life of the equipment is prolonged;
It should be noted that: the inner wall of the noise reduction channel 801 is provided with porous reticular rock wool, the rock wool has good sound insulation performance, resonance when being beneficial to absorbing noise and reducing equipment operation is achieved, the cross section of the noise reduction channel 801 is in a horn-shaped arrangement in an up-down symmetrical mode, the aperture in the middle of the noise reduction channel 801 is larger than the aperture at the end of the noise reduction channel 801, sound waves are allowed to gradually diffuse when entering the noise reduction channel 801, the larger aperture in the middle can disperse sound wave energy more effectively, thereby achieving better noise reduction effect, the end of the sound heat control branch 701 penetrates through the inner wall of the cooling channel 7, the sound heat control branch 701 is in a wavy arrangement and is arranged in a matching mode with the concave-convex part of the noise reduction channel 801, when cooling liquid flows in the cooling channel 7, the cooling liquid flows in the sound heat control branch 701, cooling is facilitated, dissipation and absorption of sound waves generated by equipment movement are facilitated, the turbulence of the wave-shaped pipeline design increases the turbulence of the fluid, contact between the cooling liquid and the inner wall of the noise reduction channel is more frequent, heat exchange can be improved, heat exchange can be effectively carried away by the design, the heat can be absorbed by the cooling liquid is prevented from flowing through the cooling channel is further, the heat can be effectively transmitted by the cooling channel is reduced, the heat can be prevented from being transmitted by the heat dissipation channel is reduced, and the heat is prevented from being transmitted by the heat dissipation channel is cooled, and the heat is prevented from being directly is more turbulent, and heat can be transmitted by the heat is more is easy, and heat is reduced by the heat is cooled.
The working principle of the non-magnetic drill collar boring device is as follows: firstly, an operator uses a clamping mechanism 4 to stably clamp a non-magnetic drill collar 10, a speed reduction driving mechanism 3 is started as a power source to provide necessary power for a boring process, the speed reduction driving mechanism 3 can control the rotation speed and torque to adapt to different working materials and conditions, the speed reduction driving mechanism 3 and the lifting of an attached adjustable boring assembly can be controlled through a lifting mechanism 5 on a mounting frame 2 to adapt to the working requirements of different heights, the operator starts a double-shaft motor 15, so that a driving screw 16 rotates, the boring cutter 9 can be moved back and forth in a chute due to the rotation of the screw 16, the precise adjustment of the boring diameter is realized, and the boring diameter can be adjusted according to specific boring requirements by the design, so that the operator does not need to replace the boring cutter 9 or carry out complicated manual adjustment;
The self-adaptive cooling assembly is designed above the adjustable boring assembly, the flow rate of the cooling liquid is automatically regulated according to the action of the boring assembly, the cooling liquid is conveyed into the cooling channel 7 through the liquid conveying hose 11 arranged on the side wall of the sleeve 12, and directly acts on a boring operation area through the liquid outlet end 703 and the spray cavity 901 when necessary, the cooling efficiency is ensured, the self-adaptive regulation of the cooling flow rate is realized depending on the position change of the boring cutter 9, the sliding of the limit baffle 704 in the liquid outlet end 703 is realized by the connecting rod 707 so as to control the cooling liquid flowing into the liquid outlet cavity 705, when the boring cutter 9 slides outwards in a chute, the limit baffle 704 also slides in the liquid outlet end 703 under the driving of the connecting rod 707, and the opening size of the liquid outlet end 703 correspondingly increases according to the moving distance of the boring cutter 9 (refer to fig. 9);
When machining larger holes, the cutting area increases, which may result in an increase in the overall heating value, and as the contact area increases, the cutting resistance may increase, which also increases the heat generation, thus, a sufficient coolant flow is required to maintain reasonable tool and workpiece temperatures and to effectively lubricate the machining area, while by the design of the present application, when the extension distance of the boring tool 9 increases, the connecting rod 707 pulls the limit stop 704 to move to increase the opening of the liquid outlet 703, allowing more coolant to flow out, while the coolant entering the spray cavity 901 increases with the size of the opening of the liquid outlet 703, and as the coolant flow increases, more coolant is sprayed out from the spray nozzle 903 in the same time, the cutting area receives more lubrication and cooling, thereby helping to maintain the temperatures of the tool (boring tool 9 and boring bar 6) and workpiece (non-magnetic drill collar 10) within a reasonable range, such design not only improves the machining efficiency, but also prolongs the tool life, ensures the machining quality, and also satisfies the automatic cooling lubrication requirements of different specifications, especially when the bore diameter is different, and the operator does not need to adjust the cooling flow greatly, and the machining efficiency is improved;
when the non-magnetic drill collar 10 is subjected to boring treatment, vibration and noise are generated due to direct contact friction between the boring cutter 9 and the inner wall of the non-magnetic drill collar 10, the sound waves directly enter the working environment through air propagation, the sound waves move along the boring bar 6, when encountering the pickup groove 8, the propagation of a part of the sound waves in the pickup groove 8 is affected by multiple reflection and scattering, the change of the sound wave energy propagation path is caused, by the arrangement of the pickup groove 8, the grooves form a group of elements capable of capturing sound waves generated in the surrounding, the elements catch the sound waves generated during mechanical operation and transmit the sound waves into the noise reduction channel 801 through the microporous dustproof cover 802, the noise reduction channel 801 is distributed in a circular equidistant manner along the central axis of the boring bar 6, the noise reduction network is formed by mutual connection due to the equidistant arrangement, this helps the sound wave to be absorbed uniformly and thus reduce the noise, the cross section of the channel is designed as a horn shape which is symmetrical up and down, this allows the sound wave to spread out when entering, the middle part of the large aperture disperses the sound wave energy more effectively, the inner wall of the noise reduction channel 801 is covered with porous reticular rock wool, this material is selected for its excellent sound insulation properties, the rock wool can absorb the noise, reduce resonance, provide a more silent environment for the operation of the device, at the same time, the sound and heat control branch 701, which is a specifically designed branch having both heat dissipation and noise reduction functions, the wavy design increases the turbulence when the fluid flows, which is not only beneficial for cooling, but also helps to break and attenuate the propagation path of the noise, when the cooling fluid flows through the sound and heat control branch 701, it can absorb the sound wave generated by the movement of the device at the same time, thus realizing double control of the sound wave and heat, meanwhile, the heat insulation layer arranged between the cooling channel 7 and the acoustic-thermal control branch channel 701 is also beneficial to limiting heat conduction, ensuring cooling effect and reducing noise transmission; the sound wave flowing out through the bottom noise reduction channel 801 is transmitted to the next noise reduction channel 801, so that the noise generated during the operation of the equipment can be subjected to multi-stage noise reduction, and the resonance generated during the operation of the boring bar 6 can be reduced;
in summary, the non-magnetic drill collar boring device realizes efficient and accurate boring operation through the carefully designed driving, adjusting, cooling and noise reduction assembly, and the self-adaptive cooling and noise reduction design is particularly suitable for use in environments requiring high precision and low noise.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
It should be noted that, specific model specifications of the motor need to be determined by selecting a model according to actual specifications of the device, and a specific model selection calculation method adopts the prior art in the field, so detailed description is omitted.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a no magnetic drill collar boring device, includes operation platform (1), mounting bracket (2) and no magnetic drill collar (10), the top of mounting bracket (2) is provided with speed reduction actuating mechanism (3), the lower extreme of mounting bracket (2) is provided with elevating system (5) that control speed reduction actuating mechanism (3) go up and down, the lateral wall is provided with fixture (4) that carry out the centre gripping to no magnetic drill collar (10) on operation platform (1), its characterized in that still includes:
the adjustable boring assembly is arranged at the lower end of the speed reduction driving mechanism (3) and can adjust the diameter of the boring of the non-magnetic drill collar (10) according to the requirement;
An adaptive cooling assembly: the self-adaptive cooling assembly is arranged above the adjustable boring assembly speed reduction driving mechanism (3), and can accurately control the flow of the cooling liquid according to the moving range of the adjustable boring assembly;
branch noise reduction assembly: the branch noise reduction assembly is arranged around the self-adaptive cooling assembly, and can work cooperatively with the self-adaptive cooling assembly to reduce noise of the adjustable boring assembly during working.
2. The non-magnetic drill collar boring device according to claim 1, wherein the adjustable boring assembly comprises a boring cutter (9) and a mounting sleeve (12), the mounting sleeve (12) is fixedly connected with a shell of a speed reduction driving mechanism (3), a boring rod (6) is rotatably connected in the mounting sleeve (12), a sliding groove is formed in the bottom of the boring rod (6), a double-shaft motor (15) is fixedly connected in the middle of the sliding groove, the boring cutter (9) is in sliding connection with the sliding groove, a screw (16) is fixedly connected to the output end of the double-shaft motor (15), the screw (16) is in threaded connection with the boring cutter (9), and a thread groove meshed with the external thread of the screw (16) is formed in the boring cutter (9).
3. The non-magnetic drill collar boring device according to claim 2, characterized in that an external thread is arranged on the side wall of the lower end of the mounting sleeve (12), the upper end of the boring bar (6) is fixedly connected with the output end of the speed reduction driving mechanism (3), a fastening sleeve (14) is connected with the lower end of the mounting sleeve (12) in a threaded manner, a thread groove meshed with the external thread of the lower end of the mounting sleeve (12) is formed in the inner wall of the fastening sleeve (14), a sealing plug (13) is fixedly arranged on the outer side of the boring bar (6), the side wall of the sealing plug (13) is tightly abutted against the inclined side wall of the inner cavity of the mounting sleeve (12), and a liquid storage space is formed between the top of the inner cavity of the mounting sleeve (12) and the boring bar (6).
4. A non-magnetic drill collar boring device according to claim 3, characterized in that the self-adaptive cooling assembly comprises an infusion hose (11) fixedly connected to the side wall of a mounting sleeve (12) and a cooling channel (7) arranged inside a boring bar (6), the infusion hose (11) is in through connection with a liquid storage space, the liquid storage space is in sealed arrangement with the cooling channel (7), a liquid storage chamber (702) is arranged at the lower end of the cooling channel (7), a liquid outlet end (703) and a liquid outlet cavity (705) are arranged at the bottom end of the liquid storage chamber (702), the liquid outlet end (703) penetrates through the side walls of the liquid storage chamber (702) and the liquid outlet cavity (705) respectively, a limit baffle (704) is connected to the inside of the liquid outlet end (703) in a sliding manner, a connecting rod (707) and a buffer spring (706) are fixedly connected to the side wall of the limit baffle (704), the end of the buffer spring (706) far away from the limit baffle (704) is fixedly connected with the inner wall of the liquid outlet cavity (705), and the end of the connecting rod (707) penetrates through the side wall of the boring bar (6) and is fixedly connected with the side wall of a boring blade (9).
5. The non-magnetic drill collar boring device according to claim 4, wherein the self-adaptive cooling assembly further comprises a liquid outlet hole (708) formed in the lower side wall of the liquid outlet cavity (705) in a penetrating manner and a spraying cavity (901) formed in the boring tool (9) in a penetrating manner, the spraying cavity (901) is provided with a liquid inlet hole (902) in a penetrating manner near the upper side wall of the double-shaft motor (15), a nozzle (903) is formed in the side wall of the spraying cavity (901), and the end portion of the nozzle (903) penetrates through the outer side wall of the boring tool (9).
6. The non-magnetic drill collar boring device according to claim 5, wherein the liquid outlet hole (708) is arranged near the outer side wall of the boring bar (6), the length of the liquid outlet hole (708) is larger than that of the liquid inlet hole (902), the liquid outlet hole (708) and the liquid inlet hole (902) are arranged in a sliding sealing mode, the cross section of the limit baffle (704) is in a T-shaped mode, the cross section of the connecting rod (707) is in an L-shaped mode, a gap exists between the side wall of the connecting rod (707) and the side wall of the liquid outlet cavity (705), and the end portion of the liquid conveying hose (11) is in through connection with the output end of the cooling liquid output pump.
7. The non-magnetic drill collar boring device according to claim 4, wherein the branch noise reduction assembly comprises a sound-heat control branch passage (701) and a plurality of pickup grooves (8) formed in the side wall of the boring bar (6) at equal intervals, a plurality of noise reduction channels (801) are arranged between adjacent pickup grooves (8), the noise reduction channels (801) are distributed in an annular mode at equal intervals along the central axis of the boring bar (6), the end portions of the noise reduction channels (801) penetrate through the side wall of the pickup grooves (8) respectively, and microporous dust covers (802) are mounted on the end portions of the noise reduction channels (801) in a clamping mode.
8. The non-magnetic drill collar boring device according to claim 7, wherein porous reticular rock wool is arranged on the inner wall of the noise reduction channel (801), the cross section of the noise reduction channel (801) is in a horn shape with up-down symmetry, the aperture of the middle part of the noise reduction channel (801) is larger than that of the end part of the noise reduction channel, the end part of the sound and heat control branch channel (701) penetrates through the inner wall of the cooling channel (7), the sound and heat control branch channel (701) is in a wavy arrangement and is arranged in a matching mode with the concave-convex part of the noise reduction channel (801), and a heat insulation layer is arranged between the cooling channel (7) and the sound and heat control branch channel (701).
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| CN202410613011.0A CN118180446B (en) | 2024-05-17 | 2024-05-17 | Non-magnetic drill collar boring device |
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