A double flow divider for top drive drilling rig

Abstract

The invention discloses a double flow divider of a top drive drilling rig, and relates to the technical field of top drive drilling rigs. The double flow divider comprises a connecting main shaft, an upper joint is arranged on the top of the connecting main shaft, a porous rubber ring is installed inside the upper joint, an inner tube is arranged inside the porous rubber ring, ball bearings are installed near the bottom position inside the shell and near the bottom position inside the shell, a first sealing ring is installed inside each of the second annular grooves, two air pipe joints are fixedly penetrated through the outer wall of the air inlet end of the shell, and a second sealing ring is installed inside each of the first annular grooves. The invention can improve the rotation effect of the double flow divider by cooperating with the ball bearing, the first sealing ring and the second sealing ring, and can prevent dust from contacting the ball bearing, thereby improving the service life of the ball bearing, which not only improves the use effect of the double flow divider, but also improves the use efficiency of the double flow divider.

Description

Technical Field

[0001] The invention relates to the technical field of top drive drilling rigs, in particular to a double flow divider of a top drive drilling rig. Background Art

[0002] A top drive drilling rig is an oil drilling rig, mainly used in the field of oil and natural gas exploration and exploitation. The double diverter is an important component in the top drive drilling rig, commonly known as the "air box". It mainly uses the working principle of ventilating the inside of the double diverter to achieve the recovery of the debris at the bottom of the borehole.

[0003] In actual use, the existing double diverter can discharge the rock cuttings at the bottom of the borehole to the ground to improve the quality and speed of drilling, but the use effect is poor. The main reason is that the tapered roller ball bearing of the double diverter is more wear-resistant during use, that is, long-term use will cause the rotation effect of the double diverter to gradually deteriorate. At the same time, the double diverter is not equipped with a dustproof mechanism. When dust penetrates into the interior of the double diverter, the dust will cause the service life of the tapered roller ball bearing to be reduced, which not only reduces the use effect of the double diverter, but also reduces the use efficiency of the double diverter.

[0004] Therefore, we propose a new double flow divider for a top drive drilling rig to solve the problems raised in the above background technology. Summary of the invention

[0005] The object of the present invention is to provide a double flow splitter for a top drive drilling rig, so as to solve the problem that the existing double flow splitter mentioned in the background technology has a short service life and poor use effect, that is, the use efficiency of the double flow splitter is reduced.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A double flow divider for a top drive drilling rig, comprising a connecting spindle, the outer surface of the connecting spindle is movably sleeved with a shell, the top of the connecting spindle is provided with an upper joint, a porous rubber ring is installed inside the upper joint, an inner tube is provided inside the porous rubber ring, the outer surface of the connecting spindle is movably sleeved with two glands, the inner position of the shell near the bottom and the inner position of the shell near the bottom are both provided with ball bearings, the outer surface of the inner tube is provided with two first annular grooves near the bottom, the inner surface of the shell is provided with four second annular grooves, each of the second annular grooves is provided with a first sealing ring, the opposite sides of the two glands are provided with a plurality of fixing bolts, the inner wall of the shell is provided with two symmetrical oil injection holes, the openings of the two oil injection holes are provided with oil injection nozzles, the outer wall of the air inlet end of the shell is fixed with two air pipe joints, the inner part of each first annular groove is provided with a second sealing ring, the air inlet end port of the shell is provided with a sealing plate, and the inner part of each gland is provided with a third sealing ring.

[0007] Preferably, the top end of the inner tube is inside the upper joint, the inner tube is inside the porous rubber ring, the lower end of the inner tube is inside the connecting main shaft, the shell is between two glands, and the two ball bearings are installed on the outer wall of the connecting main shaft.

[0008] Preferably, the interior of each of the first sealing rings is in contact with the outer wall of the connecting main shaft, one end of each of the fixing bolts is installed on the shell, the outer wall of each of the second sealing rings is in contact with the inner wall of the connecting main shaft, and the interior of each of the third sealing rings is in contact with the outer wall of the connecting main shaft.

[0009] Preferably, an auxiliary mechanism is provided on the outer wall of the shell, and the auxiliary mechanism includes two heat-conducting copper tubes and a connecting block, each of the heat-conducting copper tubes is located inside each oil filling hole, and the two heat-conducting copper tubes are both located inside the shell.

[0010] Preferably, both ends of each of the heat-conducting copper tubes are fixed through the inner wall of each oiling nozzle, and both ends of each of the heat-conducting copper tubes are fixed with connecting tubes. The four connecting tubes are divided into two groups, and a first multi-way tube is installed between the inlets of one group of connecting tubes, and a second multi-way tube is installed between the outlets of the other group of connecting tubes.

[0011] Preferably, the connecting block is installed on the outer wall of the shell, an L-shaped groove is opened on the surface of the connecting block, a rectangular groove is opened on the surface of the connecting block, an L-shaped plate is installed on the surface of the connecting block, and the L-shaped plate is located at the notch of the L-shaped groove.

[0012] Preferably, a heat sink is fixedly passed through the surface of the L-shaped plate, the heat conducting end of the heat sink is directly below the water outlet end of the second multi-way tube, the water outlet end of the second multi-way tube is fixedly passed through the top of the connecting block, and the water outlet end of the second multi-way tube extends to the inside of the L-shaped groove.

[0013] Preferably, a controller is installed on the surface of the L-shaped plate, a water pump is installed at the bottom of the inner wall of the second rectangular groove, the water pump is electrically connected to the controller, and the water inlet end of the first multi-way pipe is fixedly passed through the surface of the connecting block.

[0014] Preferably, the water inlet end of the first multi-way pipe extends to the rectangular groove, the water outlet end of the water pump is equipped with a water outlet pipe, the water outlet end of the water outlet pipe is connected to the water inlet end of the first multi-way pipe, and the water inlet end of the water pump is equipped with a water inlet pipe.

[0015] Preferably, the water inlet end of the water inlet pipe is fixedly passed through the inner wall of the rectangular groove, and the water inlet end of the water inlet pipe extends to the inside of the L-shaped groove. Two semiconductor refrigeration plates are installed on the surface of the heat sink, and the two semiconductor refrigeration plates are electrically connected to the controller.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can improve the rotation effect of the double diverter by cooperating with the ball bearing, the first sealing ring and the second sealing ring, and can prevent dust from contacting the ball bearing, thereby increasing the service life of the ball bearing, which not only improves the use effect of the double diverter, but also improves the use efficiency of the double diverter. When the double diverter needs to be assembled, the second annular groove and the first sealing ring are first used to cooperate to achieve a tight connection between the shell and the connecting main shaft, and then the ball bearing is used to cooperate to connect the connecting main shaft to the shell.

[0018] 2. The present invention then utilizes the cooperation of the fixing bolts and the gland to fix the third sealing ring installed inside the gland, and then utilizes the cooperation of the upper joint, the porous rubber ring and the connecting main shaft to fix the inner tube with the second sealing ring inside the connecting main shaft, and then utilizes the cooperation of the first sealing ring and the second sealing ring to prevent dust from contacting the ball bearing, and then utilizes the connecting block to install the auxiliary mechanism on the housing.

[0019] 3. When the present invention needs to drill a hole in the desired area, the drilling machine, drill rod, double diverter and drill bit are used together to achieve the desired drilling operation. Then, the oiling nozzle and oiling hole are used together to lubricate the ball bearing. Then, the air pump with an air pipe, an air pipe joint, a shell and a sealing plate are used together to inject high-pressure gas into the shell.

[0020] 4. The present invention then utilizes the cooperation of the porous rubber ring, the inner tube, the upper joint and the connecting main shaft to realize the delivery of high-pressure gas to the drill rod, and then utilizes the cooperation of the drill rod and the drill bit to realize the delivery of high-pressure gas to the bottom of the borehole, that is, the high-pressure gas can be used to blow away the rock cuttings at the bottom of the borehole, and then utilizes the cooperation of the inner tube, the connecting main shaft and the drilling rig to realize the discharge of the rock cuttings to the ground.

[0021] 5. The present invention can ensure that the temperature of the lubricating oil for lubricating the ball bearing is always maintained within an appropriate range by providing an auxiliary mechanism. When the lubricating oil needs to be cooled, the cold water stored in the L-shaped groove can be extracted and transported to the inside of the first multi-way pipe by first using the cooperation of the controller, water pump, water inlet pipe and water outlet pipe. Then, the cold water transported to the first multi-way pipe can be diverted and transported to the inside of the two heat-conducting copper pipes by using the cooperation of the first multi-way pipe and the connecting pipe.

[0022] 6. The present invention then utilizes the cooperation of the heat-conducting copper tube and cold water to realize cooling operation on the lubricating oil by utilizing the principle of heat transfer, and then utilizes the cooperation of the second multi-way tube to realize gathering the water with heat and directing it back to the inside of the L-shaped groove, and then utilizes the cooperation of the heat sink and the semiconductor refrigeration sheet to realize cooling operation on the water flowing back to the inside of the L-shaped groove, thus ensuring that the water inside the L-shaped groove is always in a low temperature state. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a partially cutaway stereoscopic view of a double flow divider of a top drive drilling rig according to the present invention;

[0024] Figure 2 A three-dimensional diagram of a connecting spindle of a double flow divider of a top drive drilling rig according to the present invention;

[0025] Figure 3 It is a schematic cross-sectional three-dimensional structure diagram of a housing, an oil injection nozzle, an air pipe joint and an oil injection hole of a double flow divider of a top drive drilling rig of the present invention;

[0026] Figure 4 It is a three-dimensional structural schematic diagram of a gland and a third sealing ring of a double flow divider of a top drive drilling rig according to the present invention;

[0027] Figure 5 It is a schematic diagram of a gland structure of a double flow divider of a top drive drilling rig of the present invention;

[0028] Figure 6 It is a sectional stereoscopic view of an upper joint of a double flow divider of a top drive drilling rig according to the present invention;

[0029] Figure 7 It is a cross-sectional three-dimensional structural schematic diagram of an inner tube and an upper joint of a double flow divider of a top drive drilling rig according to the present invention;

[0030] Figure 8 Another partial cutaway perspective view of a double flow divider of a top drive drilling rig according to the present invention;

[0031] Fig. 9 A side-view stereoscopic view of another part of a double flow divider of a top drive drilling rig according to the present invention;

[0032] Fig.10 It is a top-down perspective view of another part of a double flow divider of a top drive drilling rig according to the present invention;

[0033] Fig.11 It is a schematic diagram of a cross-sectional three-dimensional structure of an oil injection nozzle and an auxiliary mechanism of a double flow divider of a top drive drilling rig of the present invention;

[0034] Fig.12 The present invention is a stereoscopic view of a heat sink of a double diverter of a top drive drilling rig.

[0035] In the figure: 1. connecting main shaft; 2. fixing bolt; 3. gland; 4. ball bearing; 5. first sealing ring; 6. housing; 7. oiling nozzle; 8. air pipe joint; 9. second sealing ring; 10. porous rubber ring; 11. upper joint; 12. inner tube; 13. first annular groove; 14. sealing plate; 15. oiling hole; 16. second annular groove; 17. third sealing ring; 18. auxiliary mechanism; 180. heat-conducting copper tube; 181. connecting tube; 182. first multi-way tube; 183. second multi-way tube; 184. connecting block; 185. L-shaped groove; 186. rectangular groove; 187. L-shaped plate; 188. heat sink; 189. controller; 1810. water pump; 1811. water inlet pipe; 1812. water outlet pipe; 1813. semiconductor refrigeration sheet. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-Figure 12 As shown, the present invention provides a technical solution: a double flow divider for a top drive drilling rig, comprising a connecting spindle 1, a shell 6 is movably sleeved on the outer surface of the connecting spindle 1, an upper joint 11 is arranged on the top of the connecting spindle 1, a porous rubber ring 10 is installed inside the upper joint 11, an inner tube 12 is arranged inside the porous rubber ring 10, two glands 3 are movably sleeved on the outer surface of the connecting spindle 1, ball bearings 4 are installed near the bottom of the shell 6 and near the bottom of the shell 6, and two first annular grooves 13 are arranged on the outer surface of the inner tube 12 near the bottom Four second annular grooves 16 are provided inside the shell 6, and a first sealing ring 5 is installed inside each second annular groove 16. A plurality of fixing bolts 2 are installed on the opposite sides of the two glands 3. Two symmetrical oil filling holes 15 are provided on the inner wall of the shell 6, and oil filling nozzles 7 are installed at the openings of the two oil filling holes 15. Two air pipe joints 8 are fixedly penetrated through the outer wall of the air inlet end of the shell 6, and a second sealing ring 9 is installed inside each first annular groove 13. A sealing plate 14 is installed at the air inlet port of the shell 6, and a third sealing ring 17 is installed inside each gland 3.

[0038] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, the top end of the inner tube 12 is located inside the upper joint 11, the inner tube 12 is located inside the porous rubber ring 10, the lower end of the inner tube 12 is located inside the connecting main shaft 1, the shell 6 is located between the two glands 3, and the two ball bearings 4 are both installed on the outer wall of the connecting main shaft 1, so that under the action of the ball bearings 4, the rotation of the double diverter can be smoother, thereby effectively improving the service life of the double diverter.

[0039] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 , Fig. 9 and Fig.10 As shown, the interior of each first sealing ring 5 is in contact with the outer wall of the connecting main shaft 1, one end of each fixing bolt 2 is installed on the housing 6, the outer wall of each second sealing ring 9 is in contact with the inner wall of the connecting main shaft 1, and the interior of each third sealing ring 17 is in contact with the outer wall of the connecting main shaft 1. With the cooperation of the third sealing ring 17, the first sealing ring 5 and the second sealing ring 9, the sealing between the housing 6 and the connecting main shaft 1 can be improved, and at the same time, under the action of the fixing bolt 2, the pressure cover 3 and the housing 6 can be tightly fixed together.

[0040] according to Figure 1 , Figure 3 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown, the outer wall of the shell 6 is provided with an auxiliary mechanism 18, and the auxiliary mechanism 18 includes two heat-conducting copper tubes 180 and a connecting block 184. Each heat-conducting copper tube 180 is respectively located inside each oil filling hole 15, and the two heat-conducting copper tubes 180 are both located inside the shell 6, so that under the action of the heat-conducting copper tube 180, the cold water flowing inside the heat-conducting copper tube 180 and the lubricating oil with heat can perform a rapid heat exchange operation.

[0041] according to Figure 1 , Figure 3 , Figure 8 , Fig. 9 , Fig.10 and Fig.11As shown, both ends of each heat-conducting copper tube 180 are fixed through the inner wall of each oiling nozzle 7, and both ends of each heat-conducting copper tube 180 are fixed with connecting tubes 181. The four connecting tubes 181 are divided into two groups, and a first multi-way tube 182 is installed between the inlets of one group of connecting tubes 181, and a second multi-way tube 183 is installed between the outlets of the other group of connecting tubes 181. Under the action of the second multi-way tube 183, the water with heat transported from the two heat-conducting copper tubes 180 can be collected and transported back to the inside of the L-shaped groove 185. At the same time, with the cooperation of the oiling nozzle 7 and the oiling hole 15, lubricating oil can be transported to the ball bearing 4.

[0042] according to Figure 1 , Figure 3 , Figure 8 , Fig. 9 and Fig.10 As shown, the connecting block 184 is installed on the outer wall of the shell 6, and an L-shaped groove 185 is opened on the surface of the connecting block 184, and a rectangular groove 186 is opened on the surface of the connecting block 184. An L-shaped plate 187 is installed on the surface of the connecting block 184. The L-shaped plate 187 is located at the notch of the L-shaped groove 185. Under the action of the L-shaped plate 187, the water stored in the L-shaped groove 185 can be prevented from flowing out, and at the same time, a mounting position is provided for the controller 189 and the heat sink 188.

[0043] according to Figure 8 , Fig. 9 , Fig.10 and Fig.12 As shown, a heat sink 188 is fixedly penetrated through the surface of the L-shaped plate 187, and the heat-conducting end of the heat sink 188 is located directly below the water outlet end of the second multi-way tube 183. The water outlet end of the second multi-way tube 183 is fixedly penetrated through the top of the connecting block 184, and the water outlet end of the second multi-way tube 183 extends to the interior of the L-shaped groove 185. Under the action of the L-shaped groove 185, cold water that can exchange heat with the lubricating oil can be provided to the water pump 1810. At the same time, under the action of the connecting block 184, the entire auxiliary mechanism 18 can be installed on the shell 6.

[0044] according to Figure 8 , Fig. 9 and Fig.10 As shown, a controller 189 is installed on the surface of the L-shaped plate 187, and a water pump 1810 is installed on the bottom of the inner wall of the second rectangular groove 186. The water pump 1810 is electrically connected to the controller 189. The water inlet end of the first multi-way tube 182 is fixed through the surface of the connecting block 184, so that with the cooperation of the first multi-way tube 182 and the connecting tube 181, the cold water delivered to the first multi-way tube 182 can be diverted and delivered to the inside of the two heat-conducting copper tubes 180.

[0045] according to Figure 8 , Fig. 9 and Fig.10As shown, the water inlet end of the first multi-way tube 182 extends to the rectangular groove 186, and the water outlet end of the water pump 1810 is installed with a water outlet pipe 1812. The water outlet end of the water outlet pipe 1812 is connected to the water inlet end of the first multi-way tube 182, and the water inlet end of the water pump 1810 is installed with a water inlet pipe 1811. With the cooperation of the water pump 1810, the water inlet pipe 1811 and the water outlet pipe 1812, the cold water drawn out from the inside of the L-shaped groove 185 can be transported to the inside of the first multi-way tube 182.

[0046] according to Figure 8 , Fig. 9 , Fig.10 and Fig.12 As shown, the water inlet end of the water inlet pipe 1811 is fixedly passed through the inner wall of the rectangular groove 186, and the water inlet end of the water inlet pipe 1811 extends to the inside of the L-shaped groove 185. Two semiconductor refrigeration plates 1813 are installed on the surface of the heat sink 188. The two semiconductor refrigeration plates 1813 are electrically connected to the controller 189, so that the heat carried by the water flowing back to the inside of the L-shaped groove 185 can be transferred away with the cooperation of the semiconductor refrigeration plates 1813 and the heat sink 188, thereby realizing a cooling operation, that is, ensuring that the water temperature inside the L-shaped groove 185 is always kept at a low temperature. At the same time, under the action of the controller 189, it can be controlled whether the semiconductor refrigeration plates 1813 are opened and closed.

[0047] The effect achieved by the entire mechanism is as follows: when it is necessary to assemble the double diverter, first install the first sealing ring 5 inside each second annular groove 16 inside the shell 6, then put the connecting spindle 1 into the shell 6, when the connecting spindle 1 completes the placement operation, the outer wall of the connecting spindle 1 just contacts the inner wall of each first sealing ring 5 and the outer surface of each heat-conducting copper tube 180, then install a ball bearing 4 at the upper end of the connecting spindle 1 and the lower end of the connecting spindle 1 respectively, when the two ball bearings 4 are installed, the outer walls of the two ball bearings 4 are just squeezed and fixed together with the inner wall of the shell 6, and the connecting spindle 1 can rotate inside the shell 6, then install the third sealing ring 17 inside the two glands 3, and then put the two glands 3 on the upper end of the connecting spindle 1 and the lower end of the connecting spindle 1 respectively, when the opposite sides of the two glands 3 contact the top and the bottom of the shell 6 respectively, directly use the fixing bolts 2 to fix the gland 3 and the shell 6 together, and then on the inner tube 1 2, the second sealing ring 9 is installed on the two first annular grooves 13 on the inner tube 12, and then the bottom end of the inner tube 12 of the second sealing ring 9 is driven, and then the porous rubber ring 10 is installed between the inner tube 12 and the connecting spindle 1, and then the upper joint 11 is put on the upper end of the inner tube 12, and the bottom of the upper joint 11 and the top of the connecting spindle 1 are fixed together, and then the L-shaped plate 187 is removed, and a proper amount of cold water is injected into the L-shaped groove 185, and the L-shaped plate 187 is installed back to the initial position after the water injection operation is completed. Finally, the connecting block 184 is installed on the outer wall of the housing 6. When the connecting block 184 is fixed, the components on the connecting block 184 are fixed on the housing 6. Then, the two water outlet ends of the first multi-channel tube 182 are connected to the water inlet ends of the two heat-conducting copper tubes 180 respectively, and then the two water inlet ends of the second multi-channel tube 183 are connected to the water outlet ends of the two heat-conducting copper tubes 180 respectively. Then, the controller 189 is connected to the external power supply, and then the top of the assembled double diverter (such as Figure 1 ) is connected to the reverse circulation drill pipe with a drill bit, and the bottom end of the assembled double diverter (such as Figure 1) is connected to the drilling rig, and then a proper amount of lubricating oil is injected into the space composed of the oil filling hole 15, the third sealing ring 17, the connecting spindle 1 and the first sealing ring 5 through the oil filling nozzle 7. Finally, the oil ports of the two oil filling nozzles 7 are sealed. When everything is ready, the construction personnel can start the drilling rig. At this time, the started drilling rig will drive the connecting spindle 1 to rotate with the cooperation of the ball bearing 4, the lubricating oil and the housing 6, and the rotating connecting spindle 1 will drive the drill rod to rotate with the cooperation of the upper joint 11, and the rotating rotating rod will also drive the drill bit connected to it to rotate. At this time, the rotating drill bit can drill holes in the places where holes need to be drilled. At the same time, with the cooperation of the four first sealing rings 5 ​​and the two third sealing rings 17, dust in the environment can be prevented. Entering the interior of the shell 6, that is, preventing dust from entering the interior of the shell 6, realizing the protection of the ball bearing 4, not only improving the service life of the ball bearing 4, but also improving the use efficiency of the double diverter, and performing drilling operations on the places where drilling is required. When it is necessary to clean up the rock cuttings on the drill hole at the drill bit position, the air inlet ends of the two air pipe joints 8 are directly connected to the air pipe connected to the air outlet end of the external air pump, and then high-pressure gas is injected into the interior of the two air pipe joints 8. At this time, the high-pressure gas transported to the interior of the air pipe joints 8 will be transported to the interior of the shell 6, and then transported to the interior of the space composed of the outer wall of the inner tube 12, the upper joint 11 and the interior of the connecting main shaft 1, and then through the through hole on the porous rubber ring 10 to be transported to the interior of the drill rod, and then After that, it is transported to the inside of the drill bit and finally blown to the bottom of the borehole. At this time, the rock cuttings blown up at the bottom of the borehole will directly enter the inside of the inner tube 12, and then be blown into the inside of the connecting main shaft 1 with the airflow, and then be discharged from the discharge port of the drilling rig to the ground. When the ball bearing 4 works for a long time, in order to reduce the temperature of the lubricating oil for lubricating the ball bearing 4 and ensure the use effect of the lubricating oil, the controller 189 is directly used to start the water pump 1810 and the two semiconductor refrigeration sheets 1813 (the cold end of the semiconductor refrigeration sheet 1813 is in contact with the surface of the heat sink 188). At this time, the started water pump 1810 will pump out the water inside the L-shaped groove 185 through the cooperation of the water inlet pipe 1811, and then transport it to the inside of the water outlet pipe 1812, and then transport it. The water is sent to the inside of the first multi-channel tube 182, and then the water entering the first multi-channel tube 182 will be diverted and transported to the corresponding heat-conducting copper tube 180 under the cooperation of the two connecting tubes 181, and then the water entering the heat-conducting copper tube 180 will transfer the heat in the lubricating oil through the cooperation of the heat-conducting copper tube 180, and then the water with heat will be collected in the inside of the second multi-channel tube 183, and finally flow back to the inside of the L-shaped groove 185. When the water with heat flows back to the inside of the L-shaped groove 185, at this time, with the cooperation of the heat sink 188 and the started semiconductor refrigeration plate 1813, the heat in the water flowing back to the inside of the L-shaped groove 185 can be directly transferred away, that is, to ensure that the water inside the L-shaped groove 185 is always in a low temperature state.That is to say, the service life of the double shunt is improved.

[0048] Among them, the semiconductor cooling chip 1813 is a thermoelectric cooling device based on the Peltier effect.

[0049] It mainly consists of the following parts:

[0050] 1. N-type and P-type semiconductor materials: This is the key to achieving cooling effect.

[0051] 2. Electrode: used to connect to the power supply.

[0052] 3. Insulating substrate: provides support and insulation.

[0053] Among them, the controller 189 (PLC controller), water pump 1810 and semiconductor refrigeration plate 1813 are all existing technologies, and their working principles are also public technologies. Their models can be selected according to actual conditions and will not be explained in detail here.

[0054] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double flow divider for a top drive drilling rig, characterized in that: The invention comprises a connecting spindle (1), wherein the outer surface of the connecting spindle (1) is movably sleeved with a shell (6), an upper joint (11) is arranged on the top of the connecting spindle (1), a porous rubber ring (10) is installed inside the upper joint (11), an inner tube (12) is arranged inside the porous rubber ring (10), two glands (3) are movably sleeved on the outer surface of the connecting spindle (1), a ball bearing (4) is installed near the bottom of the shell (6) and near the bottom of the shell (6), two first annular grooves (13) are arranged on the outer surface of the inner tube (12) near the bottom, and four second annular grooves (13) are arranged inside the shell (6) annular groove (16), a first sealing ring (5) is installed inside each of the second annular grooves (16), a plurality of fixing bolts (2) are installed on opposite sides of the two glands (3), the inner wall of the shell (6) is provided with two symmetrical oil injection holes (15), the openings of the two oil injection holes (15) are provided with oil injection nozzles (7), the outer wall of the air inlet end of the shell (6) is fixedly penetrated with two air pipe joints (8), a second sealing ring (9) is installed inside each of the first annular grooves (13), a sealing plate (14) is installed at the air inlet end of the shell (6), and a third sealing ring (17) is installed inside each of the glands (3); The outer wall of the shell (6) is provided with an auxiliary mechanism (18), the auxiliary mechanism (18) comprising two heat-conducting copper tubes (180) and a connecting block (184), each of the heat-conducting copper tubes (180) being located inside each oil injection hole (15), the two heat-conducting copper tubes (180) being located inside the shell (6), the connecting block (184) being mounted on the outer wall of the shell (6), an L-shaped groove (185) being provided on the surface of the connecting block (184), a rectangular groove (186) being provided on the surface of the connecting block (184), an L-shaped plate (187) being installed on the surface of the connecting block (184), the L-shaped plate (187) being located at the notch of the L-shaped groove (185), and a heat sink (188) being fixedly penetrated through the surface of the L-shaped plate (187).

2. The double flow divider for a top drive drilling rig according to claim 1, characterized in that: The top end of the inner tube (12) is located inside the upper joint (11), the inner tube (12) is located inside the porous rubber ring (10), the lower end of the inner tube (12) is located inside the connecting main shaft (1), the housing (6) is located between the two glands (3), and the two ball bearings (4) are both mounted on the outer wall of the connecting main shaft (1).

3. The double flow divider for a top drive drilling rig according to claim 1, characterized in that: The interior of each of the first sealing rings (5) contacts the outer wall of the connecting main shaft (1), one end of each of the fixing bolts (2) is mounted on the housing (6), the outer wall of each of the second sealing rings (9) contacts the inner wall of the connecting main shaft (1), and the interior of each of the third sealing rings (17) contacts the outer wall of the connecting main shaft (1).

4. The double flow divider for a top drive drilling rig according to claim 1, characterized in that: Both ends of each heat-conducting copper tube (180) are respectively fixed and penetrate the inner wall of each oil injection nozzle (7), and both ends of each heat-conducting copper tube (180) are fixed with connecting tubes (181), and the four connecting tubes (181) are divided into two groups, wherein a first multi-way tube (182) is installed between the inlets of one group of connecting tubes (181), and a second multi-way tube (183) is installed between the outlets of the other group of connecting tubes (181).

5. The double flow divider for a top drive drilling rig according to claim 4, characterized in that: The heat-conducting end of the heat sink (188) is located directly below the water outlet end of the second multi-channel tube (183); the water outlet end of the second multi-channel tube (183) is fixedly passed through the top of the connecting block (184); and the water outlet end of the second multi-channel tube (183) extends to the inside of the L-shaped groove (185).

6. The double flow divider for a top drive drilling rig according to claim 4, characterized in that: A controller (189) is installed on the surface of the L-shaped plate (187), a water pump (1810) is installed on the bottom of the inner wall of the second rectangular groove (186), the water pump (1810) is electrically connected to the controller (189), and the water inlet end of the first multi-channel pipe (182) is fixedly inserted through the surface of the connecting block (184).

7. The double flow divider for a top drive drilling rig according to claim 6, characterized in that: The water inlet end of the first multi-way pipe (182) extends to the rectangular groove (186), the water outlet end of the water pump (1810) is installed with a water outlet pipe (1812), the water outlet end of the water outlet pipe (1812) is connected to the water inlet end of the first multi-way pipe (182), and the water inlet end of the water pump (1810) is installed with a water inlet pipe (1811).

8. The double flow divider for a top drive drilling rig according to claim 7, characterized in that: The water inlet end of the water inlet pipe (1811) is fixedly inserted through the inner wall of the rectangular groove (186), and the water inlet end of the water inlet pipe (1811) extends to the inside of the L-shaped groove (185). Two semiconductor cooling fins (1813) are installed on the surface of the heat sink (188), and the two semiconductor cooling fins (1813) are electrically connected to the controller (189).

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