CA3070032A1 - An apparatus for simulating load-temperature coupling wear behavior of a polycrystalline diamond compact cutter - Google Patents
An apparatus for simulating load-temperature coupling wear behavior of a polycrystalline diamond compact cutterInfo
- Publication number
- CA3070032A1 CA3070032A1 CA3070032A CA3070032A CA3070032A1 CA 3070032 A1 CA3070032 A1 CA 3070032A1 CA 3070032 A CA3070032 A CA 3070032A CA 3070032 A CA3070032 A CA 3070032A CA 3070032 A1 CA3070032 A1 CA 3070032A1
- Authority
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- Canada
- Prior art keywords
- guide post
- pdc
- lower support
- loading block
- hydraulic cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Earth Drilling (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
An experimental apparatus for simulating load-temperature coupling wear behavior of a PDC
cutter is described. The experimental apparatus comprises a motor, a hydraulic power source, a lower support, a left hydraulic cylinder, a left guide loading block, a micro power end, a left guide post, an upper support, a PDC cutter traverse mechanism, a right guide post, a right guide loading block, a temperature measuring and controlling device, a right hydraulic cylinder, a rock rotating mechanism, a chip removal device and a reduction gearbox. The invention overcomes a limitation of single reciprocating motions or circumferential motions of the conventional experimental apparatus for frictional wear behavior, realizes compound motions of the PDC
cutter in a circumferential direction, a transverse direction and a longitudinal direction through comprehensive actions of the PDC cutter traverse mechanism, the rock rotating mechanism and a hydraulic pressure, and realizes a longitudinal load application. In addition, the invention realizes a direct regulation of temperatures of the PDC cutting tool body through monitoring and control of the temperatures of the PDC cutting tool body in a more accurate and reliable way than the conventional ambient temperature control. Further, the invention realizes a experimental research on the wear behavior of the PDC cutter under coupling effects at different cutter body temperatures and cutting loads.
cutter is described. The experimental apparatus comprises a motor, a hydraulic power source, a lower support, a left hydraulic cylinder, a left guide loading block, a micro power end, a left guide post, an upper support, a PDC cutter traverse mechanism, a right guide post, a right guide loading block, a temperature measuring and controlling device, a right hydraulic cylinder, a rock rotating mechanism, a chip removal device and a reduction gearbox. The invention overcomes a limitation of single reciprocating motions or circumferential motions of the conventional experimental apparatus for frictional wear behavior, realizes compound motions of the PDC
cutter in a circumferential direction, a transverse direction and a longitudinal direction through comprehensive actions of the PDC cutter traverse mechanism, the rock rotating mechanism and a hydraulic pressure, and realizes a longitudinal load application. In addition, the invention realizes a direct regulation of temperatures of the PDC cutting tool body through monitoring and control of the temperatures of the PDC cutting tool body in a more accurate and reliable way than the conventional ambient temperature control. Further, the invention realizes a experimental research on the wear behavior of the PDC cutter under coupling effects at different cutter body temperatures and cutting loads.
Description
, , Description Experimental apparatus for simulating load-temperature coupling wear behavior of PDC
cutter (Field of the Invention]
[0001] The invention relates to an experimental apparatus for simulating load-temperature coupling wear behavior of a PDC cutter, falling within the field of mechanical wear experimental apparatus.
[ Description of the Related Art]
cutter (Field of the Invention]
[0001] The invention relates to an experimental apparatus for simulating load-temperature coupling wear behavior of a PDC cutter, falling within the field of mechanical wear experimental apparatus.
[ Description of the Related Art]
[0002] PDC bits are an important rock-breaking tool for oil and gas drilling, geothermal well drilling, coal drilling and other drillings. The advantages of low bit pressure and high drilling rate of the PDC bits increase their market share in terms of the oil and gas drilling business. The PDC bits, accounting for 80% of global oil and gas drilling market and more than 90% of the world's total drilling footage, have been the most popular bits in the field of petroleum drilling, and dramatically accelerated the drilling rate and development of the drilling technology.
[0003] However, the lifetime and drilling efficiency of the bits are reduced due to serious wear of PDC cutters under the coupling effect of temperature and load when drilling into complex high-temperature hard formations. The development of the PDC bits is restricted by the phenomenon. At present, scholars at home or abroad do not make great efforts to researches on the wear behavior of the PDC cutters under the temperature-load coupling, and no supporting experimental apparatus is reported.
[0004] In addition, conventional experimental apparatus for frictional wear behavior have three shortcomings: firstly, they do not regulate the temperature of the PDC cutters but the ambient temperature; secondly, the chippings produced by grinding between metal and rock are several times as much as those produced by the grinding between metal and metal, and the conventional experimental apparatus for frictional wear behavior are difficult to handle the large amount of rock chips produced during the grinding process;
and finally, the conventional experimental apparatus for frictional wear behavior only support single reciprocating motions or circumferential motions, while the cutters are required to perform i Description compound motions depending on heavy wear on rocks.
and finally, the conventional experimental apparatus for frictional wear behavior only support single reciprocating motions or circumferential motions, while the cutters are required to perform i Description compound motions depending on heavy wear on rocks.
[0005] Therefore, in order to study the load-temperature coupling wear behavior of the PDC
cutters, an experimental apparatus for simulating load-temperature coupling wear behavior of a PDC cutter is urgently needed to be developed, so as to provide basic theory and guidance for the developments of high-temperature wear-resistant PDC cutters and geothermal drill bits.
[ Summary of the Invention]
[ Technical Problem]
cutters, an experimental apparatus for simulating load-temperature coupling wear behavior of a PDC cutter is urgently needed to be developed, so as to provide basic theory and guidance for the developments of high-temperature wear-resistant PDC cutters and geothermal drill bits.
[ Summary of the Invention]
[ Technical Problem]
[0006] The purpose of the invention is to overcome the shortages of the prior art, and provide an experimental apparatus for simulating load-temperature coupling wear behavior of a PDC
cutter, in order to realize the research on the wear behavior of the PDC
cutter under coupling effects at different cutter body temperatures and cutting loads.
[ Solutions to the Problem]
[ Technical Solution]
cutter, in order to realize the research on the wear behavior of the PDC
cutter under coupling effects at different cutter body temperatures and cutting loads.
[ Solutions to the Problem]
[ Technical Solution]
[0007] The invention relates to an experimental apparatus for simulating load-temperature coupling wear behavior of a PDC cutter, and the experimental apparatus comprises a motor, a hydraulic power source, a lower support, a left hydraulic cylinder, a left guide loading block, a micro power end, a left guide post, an upper support, a PDC cutter traverse mechanism, a right guide post, a right guide loading block, a temperature measuring and controlling device, a right hydraulic cylinder, a rock rotating mechanism, a chip removal device and a reduction gearbox. The PDC cutter traverse mechanism is composed of a transverse guide post, a PDC cutter fixture, a leading screw and a PDC cutting tool. The temperature measuring and controlling device is composed of a heating wire, a water-cooled tube and an infrared thermometer. The rock rotating mechanism is composed of a rock fixture, a fixed chassis, a thrust ball bearing and a pad. The chip removal device is composed of a water collecting sump, a chip removal pipe, a fixed seat and an annular groove.
Description
Description
[0008] The motor is thread fastened in the lower support, and the hydraulic power source is welded in the lower support to provide power for the left hydraulic cylinder and the right hydraulic cylinder; the left hydraulic cylinder is in threaded connection with the lower support, and an upper end of the left hydraulic cylinder is fastened with the left guide loading block; the left guide loading block is in clearance fit with the left guide post, and the left guide post has a role of orienting movement of the left guide loading block; an upper end of the left guide post is in threaded connection with the upper support; the upper support is welded on the lower support; an upper end of the right guide post is connected with the upper support, a lower end thereof is connected with the lower support, and the right guide post is in clearance assembly with the right guide loading block;
the right hydraulic cylinder is in threaded connection with the lower support, and an upper end thereof is fastened with the right guide loading block; and the reduction gearbox is arranged in the lower support and connected with the thrust ball bearing rotor and the motor to transmit power and decelerate.
the right hydraulic cylinder is in threaded connection with the lower support, and an upper end thereof is fastened with the right guide loading block; and the reduction gearbox is arranged in the lower support and connected with the thrust ball bearing rotor and the motor to transmit power and decelerate.
[0009] A connecting ring of the micro power end is in clearance fit with the left guide post, the welding block is welded with the left guide loading block, the micro power end is connected with the leading screw through a driving hole to provide a rotating power for the leading screw; the PDC cutting tool is arranged in a tooth slot of the PDC
cutter fixture, and pin connected with the PDC cutter fixture through a pin hole; the PDC
cutter fixture is in threaded connection with the leading screw through a threaded hole and in clearance fit with the transverse guide post through a guide hole; and the leading screw and the transverse guide post are arranged between the left guide loading block and the right guide loading block.
cutter fixture, and pin connected with the PDC cutter fixture through a pin hole; the PDC
cutter fixture is in threaded connection with the leading screw through a threaded hole and in clearance fit with the transverse guide post through a guide hole; and the leading screw and the transverse guide post are arranged between the left guide loading block and the right guide loading block.
[0010] The heating wire, the water-cooled tube and the infrared thermometer are arranged on the PDC cutter fixture, and the PDC cutting tool is wrapped by the heating wire;
an end of the water-cooled tube is opposite to a surface of the PDC cutting tool; and the infrared thermometer is configured to measure body temperatures of the PDC cutting tool.
an end of the water-cooled tube is opposite to a surface of the PDC cutting tool; and the infrared thermometer is configured to measure body temperatures of the PDC cutting tool.
[0011] A cylindrical rock is arranged in a cylinder of the rock fixture, four counterbores are connected to a bottom of the cylinder and bolted with a fixed chassis, and four bosses are uniformly arranged around the cylinder; a threaded hole is configured on the pad, a center , CA 03070032 2020:01-15 Description line of the threaded hole coincides with a center line of the boss, a plane end surface of the pad completely fits with the rock, a curved end surface of the pad completely fits with the cylinder; and a screw passes through the boss and the pad to fasten the cylindrical rock;
and an inverted T-shaped groove and an annular groove are configured on the fixed chassis, the inverted T-shaped groove is bolted with the counterbores, and the fixed chassis is fastened with the thrust ball bearing.
and an inverted T-shaped groove and an annular groove are configured on the fixed chassis, the inverted T-shaped groove is bolted with the counterbores, and the fixed chassis is fastened with the thrust ball bearing.
[0012] The fixed seat of the chip removal device is in threaded connection with the lower support, the water collecting sump is arranged inside the chip removal device, a chip removal pipe is arranged outside the chip removal device, the annular groove is configured on the inner wall of the chip removal device, and an 0-type sealing ring is arranged between the annular groove of the chip removal device and the annular groove on the fixed chassis.
[Beneficial Effects of the Invention]
[Beneficial Effects]
[Beneficial Effects of the Invention]
[Beneficial Effects]
[0013] 1. The invention overcomes a limitation of the single reciprocating motions or circumferential motions of the conventional experimental apparatus for frictional wear behavior, realizes compound rock-breaking motions of the PDC cutter in a circumferential direction, a transverse direction and a longitudinal direction through comprehensive actions of the PDC cutter traverse mechanism, the rock rotating mechanism and a hydraulic pressure, so as to adjust a longitudinal height and a lateral displacement of the PDC cutter according to rock cutting conditions when the PDC cutter scrapes rocks in the circumferential direction; 2. the invention realizes temperature control of the PDC cutter body in a more accurate and reliable way than the conventional ambient temperature control by directly monitoring and controlling the body temperature of the PDC
cutting tool; and 3. the chip removal device for the rocks broken by PDC cutter is designed to effectively remove a large amount of rock chips generated during the PDC rock-breaking wear behavior test.
[ Brief Description of the Drawings]
[Description of the Drawings]
Description
cutting tool; and 3. the chip removal device for the rocks broken by PDC cutter is designed to effectively remove a large amount of rock chips generated during the PDC rock-breaking wear behavior test.
[ Brief Description of the Drawings]
[Description of the Drawings]
Description
[0014] Figure 1 is a structural diagram of an experimental apparatus for simulating load-temperature coupling wear behavior of a PDC cutter of the invention.
[0015] Figure 2 is a schematic diagram of a PDC cutter traverse mechanism of the invention.
[0016] Figure 3 is a schematic diagram of a temperature measuring and controlling device of the invention.
[0017] Figure 4 is a schematic diagram of a rock rotating mechanism of the invention.
[0018] Figure 5 is a schematic diagram of a chip removal device of the invention.
[0019] Figure 6 is a schematic diagram of a micro power end of the invention.
[0020] Figure 7 is a schematic diagram of a PDC cutter fixture of the invention.
[0021] Figure 8 is a structural diagram of a rock fixture of the invention.
[0022] Figure 9 is a view of a pad of the invention.
[0023] Figure 10 is a view of a fixed chassis of the invention.
[0024] Marks in the figures:
1. motor; 2. hydraulic power source; 3. lower support; 4. left hydraulic cylinder; 5. left guide loading block; 6. micro power end; 7. left guide post; 8. upper support; 9.
PDC cutter traverse mechanism; 10. right guide post; 11. right guide loading block; 12.
temperature measuring and controlling device; 13. right hydraulic cylinder; 14. rock rotating mechanism;
15. chip removal device; 16. reduction gearbox; 17. transverse guide post; 18. PDC cutter fixture; 19. leading screw;
20. PDC cutting tool; 21. heating wire; 22. water-cooled tube; 23. infrared thermometer; 24. rock fixture; 25. fixed chassis; 26. thrust ball bearing; 27. pad; 28. water collecting sump; 29. chip removal pipe; 30. fixed seat; 31. annular groove; 32. connecting ring; 33.
driving hole; 34. welding block; 35. control terminal; 36. guide hole; 37. tooth slot; 38. pin hole; 39.
threaded hole; 40. boss;
41. counterbore; 42. cylinder; 43. threaded hole; 44. plane end surface; 45.
curved end surface; 46.
inverted T-shaped groove; 47. annular groove.
[Embodiments of the invention]
Description [Detailed Description of the Preferred Embodiments]
1. motor; 2. hydraulic power source; 3. lower support; 4. left hydraulic cylinder; 5. left guide loading block; 6. micro power end; 7. left guide post; 8. upper support; 9.
PDC cutter traverse mechanism; 10. right guide post; 11. right guide loading block; 12.
temperature measuring and controlling device; 13. right hydraulic cylinder; 14. rock rotating mechanism;
15. chip removal device; 16. reduction gearbox; 17. transverse guide post; 18. PDC cutter fixture; 19. leading screw;
20. PDC cutting tool; 21. heating wire; 22. water-cooled tube; 23. infrared thermometer; 24. rock fixture; 25. fixed chassis; 26. thrust ball bearing; 27. pad; 28. water collecting sump; 29. chip removal pipe; 30. fixed seat; 31. annular groove; 32. connecting ring; 33.
driving hole; 34. welding block; 35. control terminal; 36. guide hole; 37. tooth slot; 38. pin hole; 39.
threaded hole; 40. boss;
41. counterbore; 42. cylinder; 43. threaded hole; 44. plane end surface; 45.
curved end surface; 46.
inverted T-shaped groove; 47. annular groove.
[Embodiments of the invention]
Description [Detailed Description of the Preferred Embodiments]
[0025] The invention will be further described in combination with drawings and embodiments.
[0026] As shown in Figures 1, 2, 3, 4 and 5, the invention relates to an experimental apparatus for simulating load-temperature coupling wear behavior of a PDC cutter, and the experimental apparatus comprises a motor 1, a hydraulic power source 2, a lower support 3, a left hydraulic cylinder 4, a left guide loading block 5, a micro power end 6, a left guide post 7, an upper support 8, a PDC cutter traverse mechanism 9, a right guide post 10, a right guide loading block 11, a temperature measuring and controlling device 12, a right hydraulic cylinder 13, a rock rotating mechanism 14, a chip removal device 15 and a reduction gearbox 16; the PDC cutter traverse mechanism 9 is composed of a transverse guide post 17, a PDC cutter fixture 18, a leading screw 19 and a PDC cutting tool 20; the temperature measuring and controlling device 12 is composed of a heating wire 21, a water-cooled tube 22 and an infrared thermometer 23; the rock rotating mechanism 14 is composed of a rock fixture 24, a fixed chassis 25, a thrust ball bearing 26 and a pad 27; and the chip removal device 15 is composed of a water collecting sump 28, a chip removal pipe 29, a fixed seat 30 and an annular groove 31.
[0027] As shown in Figure 1, the motor 1 is thread fastened in the lower support 3, and the hydraulic power source 2 is welded in the lower support 3 to provide power for the left hydraulic cylinder 4 and the right hydraulic cylinder 13; the left hydraulic cylinder 4 is in threaded connection with the lower support 3, and an upper end of the left hydraulic cylinder 4 is fastened with the left guide loading block 5; the left guide loading block 5 is in clearance fit with the left guide post 7, and the left guide post 7 has a role of orienting movement of the left guide loading block 5; an upper end of the left guide post 7 is in threaded connection with the upper support 8; the upper support 8 is welded on the lower support 3; an upper end of the right guide post 10 is connected with the upper support 8, a lower end thereof is connected with the lower support 3, and the right guide post 10 is in clearance assembly with the right guide loading block 11; the right hydraulic cylinder 13 is in threaded connection with the lower support 3, and an upper end thereof is fastened with the right guide loading block 11; and the reduction gearbox 16 is arranged in the lower support 3 and connected with the thrust ball bearing rotor 26 and the motor 1 to transmit =
Description power and decelerate.
Description power and decelerate.
[0028] As shown in Figures 2, 6 and 7, a connecting ring 32 of the micro power end 6 is in clearance fit with the left guide post 7, a welding block 34 is welded with the left guide loading block 5, the micro power end 6 is connected with the leading screw 19 through a driving hole 33 to provide a rotating power for the leading screw 19; the PDC
cutting tool 20 is arranged in a tooth slot 37 of the PDC cutter fixture 18, and pin connected with the PDC cutter fixture 18 through a pin hole 38; the PDC cutter fixture 18 is in threaded connection with the leading screw 19 through a threaded hole 39 and in clearance fit with the transverse guide post 17 through a guide hole 36; and the leading screw 19 and the transverse guide post 17 are arranged between the left guide loading block 5 and the right guide loading block 11.
cutting tool 20 is arranged in a tooth slot 37 of the PDC cutter fixture 18, and pin connected with the PDC cutter fixture 18 through a pin hole 38; the PDC cutter fixture 18 is in threaded connection with the leading screw 19 through a threaded hole 39 and in clearance fit with the transverse guide post 17 through a guide hole 36; and the leading screw 19 and the transverse guide post 17 are arranged between the left guide loading block 5 and the right guide loading block 11.
[0029] As shown in Figure 3, the heating wire 21, the water-cooled tube 22 and the infrared thermometer 23 are arranged on the PDC cutter fixture 18, and the PDC cutting tool 20 is wrapped by the heating wire 21; an end of the water-cooled tube 22 is opposite to a surface of the PDC cutting tool 20; and the infrared thermometer 23 is configured to measure body temperatures of the PDC cutting tool 20.
[0030] As shown in Figures 4, 8, 9 and 10, a cylindrical rock is arranged in a cylinder 42 of the rock fixture 24, four counterbores 41 are connected to a bottom of the cylinder 42 and bolted with a fixed chassis 25, and four bosses 40 are uniformly arranged around the cylinder 42; a threaded hole 43 is configured on the pad 27, a center line of the threaded hole 43 coincides with a center line of the boss 40, a plane end surface 44 of the pad 27 completely fits with the rock, a curved end surface 45 of the pad 27 completely fits with the cylinder 42, and a screw passes through the boss 40 and the pad 27 to fasten the cylindrical rock; and an inverted T-shaped groove 46 and an annular groove 47 are configured on the fixed chassis 25, the inverted T-shaped groove 46 is bolted with the counterbores 41, and the fixed chassis 25 is fastened with the thrust ball bearing 26.
[0031] As shown in Figure 5, the fixed seat 30 of the chip removal device 15 is in threaded connection with the lower support 3, the water collecting sump 28 is arranged inside the chip removal device 15, a chip removal pipe 29 is arranged outside the chip removal Description device 15, the annular groove 31 is configured on the inner wall of the chip removal device 15, and an 0-type sealing ring is arranged between the annular groove 47 and the annular groove 31.
[0032] The invention relating to an experimental apparatus for simulating load-temperature coupling wear behavior of a PDC cutter has three main functions: rock scraping by the PDC cutter, temperature measurement and control and chippings removal. The rock scraping by the PDC cutter is realized by a combination of a circumferential motion and a linear motion. The motor 1 transmits a rotational energy to the rock rotating mechanism 14 through the reduction gearbox 16 and the thrust ball bearing 26, and the rock rotating mechanism 14 drives the rock in the rock fixture 24 to do the circumferential motion; and the micro power end 6 drives the leading screw 19 to rotate to further realize the transverse displacement of the PDC cutting tool 20. The hydraulic power source 2 provides a hydraulic power for the left hydraulic cylinder 4 and the right hydraulic cylinder 13, and the left hydraulic cylinder 4 and the right hydraulic cylinder 13 drive the left guide loading block 5 and the right guide loading block 11 to move up and down to further realize a longitudinal load application and a longitudinal displacement of the PDC
cutting tool 20.
The control terminal 35 configured on the micro power end 6 regulates and monitors parameters of the transverse displacement and the longitudinal displacement of the PDC
cutting tool. The temperature measurement and control is realized through the heating wire 21, the water-cooled tube 22 and the infrared thermometer 23. The infrared thermometer 23 is applied for monitoring the body temperatures of the PDC cutting tool 20.
When overheating occurs, an end of the water-cooled tube 22 sprays a cooling liquid to the surface of the PDC cutting tool 20 to rapidly cool down the cutter body of the PDC cutting tool 20. When overcooling occurs, the heating wire 21 wrapped on the PDC
cutting tool 20 directly heats the cutter body. Cuttings generated by the rock scraping by the PDC cutting tool 20 are contained in the cooling liquid. The cooling liquid with the cuttings flows to an outside of the rock fixture 24, enters the water collecting sump 28 through the fixed chassis 25, and then is discharged through the chip removal pipe 29. The 0-type sealing ring is arranged between the annular groove 47 and the annular groove 31 for the purpose of sealing between the fixed chassis 25 and the chip removal device 15, so as to prevent the chippings and the cooling liquid from entering the thrust ball bearing 26.
cutting tool 20.
The control terminal 35 configured on the micro power end 6 regulates and monitors parameters of the transverse displacement and the longitudinal displacement of the PDC
cutting tool. The temperature measurement and control is realized through the heating wire 21, the water-cooled tube 22 and the infrared thermometer 23. The infrared thermometer 23 is applied for monitoring the body temperatures of the PDC cutting tool 20.
When overheating occurs, an end of the water-cooled tube 22 sprays a cooling liquid to the surface of the PDC cutting tool 20 to rapidly cool down the cutter body of the PDC cutting tool 20. When overcooling occurs, the heating wire 21 wrapped on the PDC
cutting tool 20 directly heats the cutter body. Cuttings generated by the rock scraping by the PDC cutting tool 20 are contained in the cooling liquid. The cooling liquid with the cuttings flows to an outside of the rock fixture 24, enters the water collecting sump 28 through the fixed chassis 25, and then is discharged through the chip removal pipe 29. The 0-type sealing ring is arranged between the annular groove 47 and the annular groove 31 for the purpose of sealing between the fixed chassis 25 and the chip removal device 15, so as to prevent the chippings and the cooling liquid from entering the thrust ball bearing 26.
Claims (6)
- [Claim 1]
1. An experimental apparatus for simulating load-temperature coupling wear behavior of a PDC
cutter, characterized in that the experimental apparatus comprises: a motor (1), a hydraulic power source (2), a lower support (3), a left hydraulic cylinder (4), a left guide loading block (5), a micro power end (6), a left guide post (7), an upper support (8), a PDC
cutter traverse mechanism (9), a right guide post (10), a right guide loading block (11), a temperature measuring and controlling device (12), a right hydraulic cylinder (13), a rock rotating mechanism (14), a chip removal device (15) and a reduction gearbox (16); the PDC cutter traverse mechanism (9) is composed of a transverse guide post (17), a PDC
cutter fixture (18), a leading screw (19) and a PDC cutting tool (20); the temperature measuring and controlling device (12) is composed of a heating wire (21), a water-cooled tube (22) and an infrared thermometer (23); the rock rotating mechanism (14) is composed of a rock fixture (24), a fixed chassis (25), a thrust ball bearing (26) and a pad (27); the chip removal device (15) is composed of a water collecting sump (28), a chip removal pipe (29), a fixed seat (30) and an annular groove (31); the motor (1) is fastened in the lower support (3), and the hydraulic power source (2) is arranged in the lower support (3) to provide power for the left hydraulic cylinder (4) and the right hydraulic cylinder (13); the left hydraulic cylinder (4) is connected with the lower support (3), and an upper end of the left hydraulic cylinder (4) is fastened with the left guide loading block (5); the left guide loading block (5) is in clearance fit with the left guide post (7), and the left guide post (7) has a role of orienting movement of the left guide loading block (5); an upper end of the left guide post (7) is connected with the upper support (8); the upper support (8) is welded on the lower support (3); an upper end of the right guide post (10) is connected with the upper support (8), a lower end thereof is connected with the lower support (3), and the right guide post (10) is in clearance assembly with the right guide loading block (11); the right hydraulic cylinder (13) is connected with the lower support (3), and an upper end of the right hydraulic cylinder (13) is fastened with the right guide loading block (11); and the reduction gearbox (16) is arranged in the lower support (3) and connected with the thrust ball bearing rotor (26) and the motor (1) to transmit power and decelerate. - 2. The experimental apparatus for simulating load-temperature coupling wear behavior of a PDC
cutter of claim 1, characterized in that the motor (1) is thread fastened in the lower support (3), Claims and the hydraulic power source (2) is welded in the lower support (3) to provide power for the left hydraulic cylinder (4) and the right hydraulic cylinder (13); the left hydraulic cylinder (4) is in threaded connection with the lower support (3), and an upper end of the left hydraulic cylinder (4) is fastened with the left guide loading block (5); the left guide loading block (5) is in clearance fit with the left guide post (7), and the left guide post (7) has a role of orienting movement of the left guide loading block (5); an upper end of the left guide post (7) is in threaded connection with the upper support (8); the upper support (8) is welded on the lower support (3); an upper end of the right guide post (10) is connected with the upper support (8), the lower end thereof is connected with the lower support (3), and the right guide post (10) is in clearance assembly with the right guide loading block (11); the right hydraulic cylinder (13) is in threaded connection with the lower support (3), and an upper end thereof is fastened with the right guide loading block (11); and the reduction gearbox (16) is arranged in the lower support (3) and connected with the thrust ball bearing rotor (26) and the motor (1) to transmit power and decelerate. - 3. The experimental apparatus for simulating load-temperature coupling wear behavior of a PDC
cutter of claim 1, characterized in that a connecting ring (32) of the micro power end (6) is in clearance fit with the left guide post (7), the welding block (34) is welded with the left guide loading block (5), the micro power end (6) is connected with the leading screw (19) through a driving hole (33) to provide a rotating power for the leading screw (19); the PDC cutting tool (20) is arranged in a tooth slot (37) of the PDC cutter fixture (18), and pin connected with the PDC cutter fixture (18) through a pin hole (38); the PDC cutter fixture (18) is in threaded connection with the leading screw (19) through a threaded hole (39) and in clearance fit with the transverse guide post (17) through a guide hole (36); and the leading screw (19) and the transverse guide post (17) are arranged between the left guide loading block (5) and the right guide loading block (11). - 4. The experimental apparatus for simulating load-temperature coupling wear behavior of a PDC
cutter of claim 1, characterized in that the heating wire (21), the water-cooled tube (22) and the infrared thermometer (23) are arranged on the PDC cutter fixture (18), and the PDC cutting tool (20) is wrapped by the heating wire (21); an end of the water-cooled tube (22) is opposite to a surface of the PDC cutting tool (20); and the infrared thermometer (23) is configured to Claims measure body temperatures of the PDC cutting tool (20). - 5. An experimental apparatus for simulating load-temperature coupling wear behavior of a PDC
cutter of claim 1, characterized in that a cylindrical rock is arranged in a cylinder (42) of the rock fixture (24), four counterbores (41) are connected to a bottom of the cylinder (42) and bolted with a fixed chassis (25), and four bosses (40) are uniformly arranged around the cylinder (42); a threaded hole (43) is configured on the pad (27), a center line of the threaded hole (43) coincides with a center line of the boss (40), a plane end surface (44) of the pad (27) completely fits with the rock, a curved end surface (45) of the pad (27) completely fits with the cylinder (42), and a screw passes through the boss (40) and the pad (27) to fasten the cylindrical rock; and an inverted T-shaped groove (46) and an annular groove (47) are configured on the fixed chassis (25), the inverted T-shaped groove (46) is bolted with the counterbores (41), and the fixed chassis (25) is fastened with the thrust ball bearing (26). - 6. The experimental apparatus for simulating load-temperature coupling wear behavior of a PDC
cutter of claim 1, characterized in that the fixed seat (30) of the chip removal device (15) is in threaded connection with the lower support (3), the water collecting sump (28) is arranged inside the chip removal device (15), a chip removal pipe (29) is arranged outside the chip removal device (15), the annular groove (31) is configured on the inner wall of the chip removal device (15), and an O-type sealing ring is arranged between the annular groove (47) and the annular groove (31).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810568558.8A CN108709739B (en) | 2018-06-05 | 2018-06-05 | A kind of experimental provision worn for simulating the coupling of PDC tooth loading temperature |
| CN201810568558.8 | 2018-06-05 | ||
| PCT/CN2019/084458 WO2019233214A1 (en) | 2018-06-05 | 2019-04-26 | Experimental device for simulating wear of pdc tooth resulting from coupling between load and temperature |
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| JP3591089B2 (en) * | 1995-10-31 | 2004-11-17 | 株式会社大林組 | Bit wear test method |
| CN101539507A (en) * | 2009-03-09 | 2009-09-23 | 中国石化集团胜利石油管理局钻井工艺研究院 | PDC drilling property determination test device |
| CN201364304Y (en) * | 2009-03-09 | 2009-12-16 | 中国石化集团胜利石油管理局钻井工艺研究院 | PDC drilling characteristic measuring and testing device |
| US8434346B2 (en) * | 2009-12-18 | 2013-05-07 | Varel Europe S.A.S. | Synthetic materials for PDC cutter testing or for testing other superhard materials |
| US8365599B2 (en) * | 2010-04-06 | 2013-02-05 | Varel Europe S.A.S. | Acoustic emission toughness testing for PDC, PCBN, or other hard or superhard materials |
| EP2570794A3 (en) * | 2011-09-19 | 2014-06-11 | Varel International, Ind., L.P. | Thermal-mechanical wear testing for pdc shear cutters |
| CN103091186A (en) * | 2011-10-31 | 2013-05-08 | 中国石油化工股份有限公司 | Rock abrasiveness experiment device |
| CN103278527B (en) * | 2013-05-10 | 2015-04-01 | 吉林大学 | Diamond drill bit heat dispersion performance in-situ measurement test bed |
| CN104502182B (en) * | 2014-11-27 | 2016-10-05 | 西南石油大学 | A kind of percussive-rotary drilling experimental provision |
| CN105067231B (en) * | 2015-07-10 | 2018-06-29 | 中国石油大学(北京) | Multi-functional oil bit monodentate cutting test device and method |
| CN105716982B (en) * | 2016-04-25 | 2020-07-10 | 西南石油大学 | Diamond compact wear resistance test experimental device |
| CN106053274B (en) * | 2016-05-17 | 2019-11-29 | 西南石油大学 | A kind of rock abrasiveness parameter and abrasion-resistant metal parameter test device |
| US10031056B2 (en) * | 2016-06-30 | 2018-07-24 | Varel International Ind., L.P. | Thermomechanical testing of shear cutters |
| CN106323788A (en) * | 2016-09-27 | 2017-01-11 | 东北石油大学 | Device for evaluating drill bit wear and rock abrasiveness of different drilling modes and evaluation method |
| CN108709739B (en) * | 2018-06-05 | 2019-05-24 | 西南石油大学 | A kind of experimental provision worn for simulating the coupling of PDC tooth loading temperature |
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| CA3070032C (en) | 2021-10-19 |
| CN108709739A (en) | 2018-10-26 |
| WO2019233214A1 (en) | 2019-12-12 |
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