Power head assembly of full-hydraulic exploration drilling machine

Abstract

The invention relates to the technical field of geological exploration equipment, in particular to a full-hydraulic exploration drilling machine power head assembly which comprises a power transmission box assembly, a hydraulic motor, an oil radiator, a lubricating oil pump and a lubricating oil distributor. A power input shaft of the power transmission box assembly is connected with the hydraulic motor; an oil pumping pipe and an oil outlet pipe of the lubricating oil pump are connected with the power transmission box assembly and the oil radiator correspondingly so that lubricating oil in the power transmission box assembly can be pumped into the oil radiator for heat dissipation. A lubricating oil liquid distributor arranged on the power transmission box assembly is connected with the oil liquid radiator so as to convey lubricating oil subjected to heat dissipation in the oil liquid radiator into the power transmission box assembly. The lubricating oil pump pumps out lubricating oil in the power transmission box assembly and conveys the lubricating oil to the oil liquid radiator for heat dissipation, the lubricating oil after heat dissipation is conveyed back into the power transmission box assembly through the lubricating oil liquid distributor, and heat generated by continuous operation of the power transmission box assembly can be taken away in time through circulating heat dissipation.

Description

Technical Field

[0001] The present invention relates to the technical field of geological exploration equipment, and more specifically, to a full-hydraulic exploration drill power head assembly. Background Art

[0002] In the field of geological exploration, as a key component, the performance of the full-hydraulic exploration drill power head assembly directly affects the working efficiency, stability, and service life of the drill. At present, there are many deficiencies in the direct-acting spindle structure and traditional lubrication system of the existing full-hydraulic exploration drill power head. In the existing direct-acting spindle structure, a rigid connection method is generally adopted. This connection method has serious hidden dangers during the operation of the drill. When the power head assembly is performing drilling operations, it will inevitably encounter various complex geological conditions, such as hard rock layers, uneven formations, etc. When drilling into these complex formations, the drill bit will be subjected to large impact loads. Due to the characteristics of rigid connection, these impact loads will be directly transmitted to the spindle and related components without any buffering.

[0003] In the case of continuous operation, the existing direct-acting spindle structure has serious heat generation problems. Through actual measurement data, it is found that the temperature rise of the spindle can reach 80°C during continuous operation. Excessive temperature will have many adverse effects on the performance of the spindle and related components. High temperature will change the mechanical properties of the spindle material, reduce its strength and hardness, and increase the risk of spindle deformation and damage. High temperature will also affect the fitting accuracy between the spindle and other components.

[0004] During the drilling operation process, the power head assembly will generate a large amount of heat, making the working environment in a high-temperature working condition. In this high-temperature environment, the viscosity of the traditional lubricating oil will decrease significantly. The viscosity of the lubricating oil is one of its important performance indicators, which directly affects the lubrication effect and load-bearing capacity of the lubricating oil. When the viscosity of the lubricating oil decreases, the thickness of the oil film formed by it will decrease, and the load-bearing capacity will decrease, unable to effectively protect the friction surfaces between components. This will lead to increased wear between components and even possible gluing phenomena, seriously affecting the performance and service life of the power head assembly. Although different lubricating oils have different high-temperature viscosity change characteristics, generally speaking, when the temperature reaches a certain threshold, the viscosity of the lubricating oil will drop sharply, and currently, the traditional lubrication system has obvious deficiencies in dealing with the problem of the decrease in the viscosity of the lubricating oil under high-temperature working conditions. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a full-hydraulic exploration drill power head assembly.

[0006] The technical solution adopted by the present invention is as follows:

[0007] Full-hydraulic exploration drill power head assembly, comprising: a power transmission box assembly, a hydraulic motor, an oil radiator, a lubricating oil pump and a lubricating oil distributor; the power input shaft of the power transmission box assembly is connected to the hydraulic motor; the suction pipe and the discharge pipe of the lubricating oil pump are respectively connected to the power transmission box assembly and the oil radiator to pump the lubricating oil in the power transmission box assembly into the oil radiator for heat dissipation; the lubricating oil distributor installed on the power transmission box assembly is connected to the oil radiator to convey the cooled lubricating oil in the oil radiator into the power transmission box assembly.

[0008] Further, the power transmission box assembly further comprises: a box body, in which the power input shaft and the power transmission shaft assembly are rotationally connected in a sealed manner; a driving gear set is fixedly connected to the power input shaft, a driven gear set is movably connected to the power transmission shaft assembly, and the driven gear set is connected to a mechanical shifting mechanism installed on the box body to cooperate with or separate from the driving gear set under the control of the mechanical shifting mechanism.

[0009] Further, the power transmission shaft assembly comprises: an external spline main shaft and an internal spline main shaft; both ends of the internal spline main shaft are rotationally connected in the mounting holes on both sides of the box body in a sealed manner, the spline teeth on the outer side surface of the external spline main shaft are connected in the spline grooves on the inner side surface of the internal spline main shaft, and the spline teeth on the inner side surface of the internal spline main shaft are connected in the spline grooves on the outer side surface of the external spline main shaft; the driven gear set is movably connected to the outer side surface of the internal spline main shaft.

[0010] Further, the driven gear set comprises: a movable sleeve slidably connected to the outer side surface of the internal spline main shaft, and a plurality of axial ridges on the outer side surface of the internal spline main shaft are slidably engaged in a plurality of axial grooves on the inner side surface of the movable sleeve; the movable sleeve is connected to the mechanical shifting mechanism; a driven gear one and a driven gear two are fixedly connected to the movable sleeve.

[0011] Further, the driving gear set comprises: a fixed sleeve fixedly connected to the power input shaft, and a driving gear one and a driving gear two are fixedly connected to the fixed sleeve; the driven gear one and the driven gear two are located between the driving gear one and the driving gear two.

[0012] Further, the mechanical shifting mechanism comprises: a guide shaft installed in the box body, the axis of the guide shaft is collinear with the axis of the movable sleeve, a shifting card plate is slidably connected to the guide shaft, the shifting card plate is clamped in the annular groove on the outer side surface of the traction seat, and the movable sleeve is rotationally connected in the circular opening of the traction seat through a pedestal bearing; a shifting lever is slidably connected in the shifting chute on the shifting card plate, the shifting lever is fixed to one end of a swing arm, the other end of the swing arm is fixedly connected to a rotating shaft installed on the top end cover of the box body, and the end of the rotating shaft extending out above the end cover is connected to a shifting controller.

[0013] Further, the shift controller includes: a hinge seat fixed to the top of the rotating shaft, the hinge seat is rotatably connected to the shift handle through a hinge shaft, a positioning plug rod is fixedly connected below the shift handle, the positioning plug rod is disposed opposite to a positioning plug plate fixedly connected to the top end cover of the box body, and a stop socket and two shift sockets for inserting the positioning plug rod are provided on the positioning plug plate; magnetic attraction blocks capable of magnetically cooperating with the positioning plug rod are fixedly connected in the stop socket and the shift sockets.

[0014] Further, the lubricating oil liquid distributor includes: a distribution box installed in the box body, the distribution box is connected to the output end of the oil radiator through a hose, a plurality of fixed flow dividing pipes and a plurality of movable flow dividing pipes are connected to the distribution box, and the plurality of fixed flow dividing pipes are respectively disposed towards the driving gear set, the connecting bearing between the driving gear set and the box body, and the connecting bearing between the driven gear set and the box body; the plurality of movable flow dividing pipes are connected to the towing seat, and the outflow ports of the movable flow dividing pipes are disposed towards the driven gear set.

[0015] Further, the oil radiator includes: an oil heat dissipation box, the oil inlet and the oil outlet of the oil heat dissipation box are respectively connected to the lubricating oil pump and the lubricating oil liquid distributor through pipelines, a temperature controller is provided in the oil heat dissipation box, and the temperature controller is electrically connected to a heat dissipation fan installed on the side of the oil heat dissipation box to control the heat dissipation fan to start to cool the lubricating oil in the oil heat dissipation box by air cooling when the temperature of the lubricating oil in the oil heat dissipation box exceeds a preset value.

[0016] Further, one end of the power input shaft far from the hydraulic motor is connected to the pump shaft of the lubricating oil pump to perform synchronous drive control on the lubricating oil pump.

[0017] As can be seen from the above solutions, the beneficial effects of the present invention are:

[0018] In the power head assembly of the full hydraulic exploration drill of the present invention, the lubricating oil pump extracts the lubricating oil in the power transmission box assembly and transports it to the oil radiator for heat dissipation. Then, the heat-dissipated lubricating oil is transported back into the power transmission box assembly through the lubricating oil distributor. Through cyclic heat dissipation, the heat generated by the continuous operation of the power transmission box assembly can be taken away in time, avoiding excessive temperature of the main shaft. The lubrication method of lubricating oil circulation is adopted. Compared with grease lubrication, a more continuous and effective oil film can be formed. In the power transmission box assembly, the circulating lubricating oil can continuously provide good lubrication for each moving part, reduce the direct contact between parts, reduce the frictional resistance, and improve the working efficiency of the power head assembly. In addition, the lubrication system is relatively closed, and the lubricating oil mainly flows between the oil pump, radiator, power transmission box assembly and distributor during the circulation process, reducing the contact with the external environment. Compared with the traditional open oil injection method, the possibility of external dust, impurities, etc. entering the lubrication system is reduced, thereby reducing the wear of parts by impurities and the blockage of the lubrication system, and reducing the failure rate of the equipment. The presence of the oil radiator can effectively control the temperature of the lubricating oil. Under high-temperature working conditions, when the temperature of the lubricating oil rises and the viscosity drops, the lubricating oil is cooled by the radiator to reduce its temperature and restore the viscosity to a suitable range, so as to ensure that the lubricating oil can form an oil film with sufficient thickness and maintain good lubrication effect and load-bearing capacity.

[0019] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes the following detailed description. Brief Description of the Drawings

[0020] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0021] Figure 1 It is a three-dimensional view of the power head assembly provided by the embodiment of the present invention;

[0022] Figure 2 It is a front view of the power head assembly provided by the embodiment of the present invention;

[0023] Figure 3 It is a left view of the power head assembly provided by the embodiment of the present invention;

[0024] Figure 4 It is a top view of the power head assembly provided by the embodiment of the present invention;

[0025] Figure 5 It is a partial sectional view of the power head assembly provided by the embodiment of the present invention;

[0026] Figure 6Schematic diagram of the power transmission box assembly provided by the embodiment of the present invention;

[0027] Figure 7 Partial schematic diagram of the power transmission box assembly provided by the embodiment of the present invention;

[0028] Figure 8 Schematic diagram of the mechanical shifting mechanism provided by the embodiment of the present invention;

[0029] Figure 9 Schematic diagram of the power drive shaft assembly provided by the embodiment of the present invention;

[0030] Figure 10 Schematic diagram of the driving gear set provided by the embodiment of the present invention;

[0031] Figure 11 Schematic diagram of the driven gear set provided by the embodiment of the present invention;

[0032] Figure 12 Schematic diagram of the first scheme of the oil radiator provided by the embodiment of the present invention Figure 1 ;

[0033] Figure 13 Schematic diagram of the first scheme of the oil radiator provided by the embodiment of the present invention Figure 2 ;

[0034] Figure 14 Schematic diagram of the second scheme of the oil radiator provided by the embodiment of the present invention;

[0035] Figure 15 Cross-sectional view of the second scheme of the oil radiator provided by the embodiment of the present invention;

[0036] Figure 16 Partial sectional view of the second scheme of the oil radiator provided by the embodiment of the present invention. Detailed implementation manners

[0037] In order to clearly and completely describe the technical solutions in the embodiments of the present invention below with reference to the accompanying drawings in the embodiments of the present invention, it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] It should be understood that the terms such as "having", "including" and "comprising" used herein do not exclude the presence or addition of one or more other elements or their combinations.

[0039] Embodiment 1

[0040] Please refer toFigures 1 - 16 , the present invention provides a power head assembly for a full hydraulic exploration drill, comprising: a power transmission box assembly 1, a hydraulic motor 2, an oil radiator 3, a lubricating oil pump 4 and a lubricating oil distributor 5; a power input shaft 6 of the power transmission box assembly 1 is connected to the hydraulic motor 2; a suction pipe and a discharge pipe of the lubricating oil pump 4 are respectively connected to the power transmission box assembly 1 and the oil radiator 3 to suck the lubricating oil in the power transmission box assembly 1 into the oil radiator 3 for heat dissipation; the lubricating oil distributor 5 installed on the power transmission box assembly 1 is connected to the oil radiator 3 to convey the lubricating oil cooled in the oil radiator 3 into the power transmission box assembly 1.

[0041] The working principle and technical effects of the above technical solution are as follows:

[0042] In the power head assembly of the full hydraulic exploration drill of the present invention, the hydraulic motor 2 serves as the power source of the entire power head assembly, converting hydraulic energy into mechanical energy. The hydraulic system provides high-pressure oil to the hydraulic motor 2, prompting the rotor of the hydraulic motor 2 to start rotating, thereby outputting power; the power input shaft 6 of the power transmission box assembly 1 is directly connected to the hydraulic motor 2, and the rotational power output by the hydraulic motor 2 is transmitted to the inside of the power transmission box assembly 1 through the power input shaft 6; the lubricating oil pump 4 plays a power role in the system. It is connected to the power transmission box assembly 1 through a suction pipe. When the power head assembly starts to work, the lubricating oil pump 4 starts and uses its own suction effect to extract the lubricating oil in the power transmission box assembly 1. During the operation of the power transmission box assembly 1, heat is generated due to the mutual friction between various transmission components, causing the temperature of the lubricating oil to rise. The extracted high-temperature lubricating oil carries this heat; the lubricating oil pump 4 transports the extracted high-temperature lubricating oil to the oil radiator 3 through a discharge pipe. The function of the oil radiator 3 is to dissipate the heat of the high-temperature lubricating oil. It can adopt air-cooling or water-cooling methods to allow the high-temperature lubricating oil to exchange heat with cold air or coolant, reducing the temperature of the lubricating oil to an appropriate range; the low-temperature lubricating oil cooled by the oil radiator 3 is transported through a pipeline to the lubricating oil distributor 5 installed on the power transmission box assembly 1; the function of the lubricating oil distributor 5 is to evenly distribute the cooled lubricating oil to various lubrication-required parts inside the power transmission box assembly 1, such as the meshing parts of gears and bearings. After these parts are well lubricated, not only can the friction resistance be reduced, the transmission efficiency be improved, but also the wear of the parts can be reduced and the service life can be extended. After that, the lubricating oil completes its lubrication task inside the power transmission box assembly 1 and will converge again, waiting to be extracted by the lubricating oil pump 4 for cyclic heat dissipation and lubrication.

[0043] Embodiment 2

[0044] Please refer to Figures 1 - 16, in the power head assembly of a full hydraulic exploration drill rig provided by the present invention, the power transmission box assembly 1 further includes: a box body, in which a power input shaft 6 and a power transmission shaft assembly 8 are sealingly and rotatably connected; a driving gear set 9 is fixedly connected to the power input shaft 6, a driven gear set 10 is movably connected to the power transmission shaft assembly 8, and the driven gear set 10 is connected to a mechanical shifting mechanism 7 installed on the box body to cooperate with or separate from the driving gear set 9 under the control of the mechanical shifting mechanism 7. The power transmission shaft assembly 8 includes: an external spline main shaft 11 and an internal spline main shaft 12; both ends of the internal spline main shaft 12 are sealingly and rotatably arranged in the mounting holes on both sides of the box body, the spline teeth on the outer side surface of the external spline main shaft 11 are connected in the spline grooves on the inner side surface of the internal spline main shaft 12, and the spline teeth on the inner side surface of the internal spline main shaft 12 are connected in the spline grooves on the outer side surface of the external spline main shaft 11; the driven gear set 10 is movably connected to the outer side surface of the internal spline main shaft 12.

[0045] The working principle and technical effects of the above technical solution are as follows:

[0046] In the power head assembly of the full hydraulic exploration drill rig of the present invention,

[0047] The power generated by the hydraulic motor 2 is input into the power transmission box assembly 1 through the power input shaft 6. The driving gear set 9 fixedly connected to the power input shaft 6 will rotate together with the power input shaft 6, providing initial power for subsequent power transmission. The driven gear set 10 is movably connected to the power transmission shaft assembly 8 and is connected to the mechanical shifting mechanism 7 installed on the box body. When a shifting operation is required, the mechanical shifting mechanism 7 comes into play. It can control the position of the driven gear set 10 to engage or disengage with the driving gear set 9. When the mechanical shifting mechanism 7 controls the driven gear set 10 to engage with the driving gear set 9, the rotation of the driving gear set 9 is transmitted to the driven gear set 10 through gear meshing, thereby driving the power transmission shaft assembly 8 to rotate, and finally transmitting the power to drive the drilling operation. Different combinations of the driving gear set 9 and the driven gear set 10 can achieve different transmission ratios, thereby changing the output speed and torque to adapt to different geological conditions and drilling requirements. When the mechanical shifting mechanism 7 controls the driven gear set 10 to disengage from the driving gear set 9, the rotation of the power input shaft 6 will not be transmitted to the power transmission shaft assembly 8. At this time, the power transmission is interrupted, which may be used for the stop operation of the drill or the transitional state during the shifting process. The power transmission shaft assembly 8 consists of an external spline main shaft 11 and an internal spline main shaft 12, which are connected to each other through spline teeth and spline grooves. The two ends of the internal spline main shaft 12 are sealed and rotated in the mounting holes on both sides of the box body, playing a role of support and positioning. When the driven gear set 10 drives the internal spline main shaft 12 to rotate, since the internal spline main shaft 12 is connected to the external spline main shaft 11 through splines, the rotation of the internal spline main shaft 12 will be transmitted to the external spline main shaft 11 through spline meshing, causing the external spline main shaft 11 to rotate as well, and finally outputting the power to other components of the drilling equipment. Moreover, the spline connection allows the external spline main shaft 11 to have a certain axial movement within the internal spline main shaft 12. This design can adapt to the axial displacement changes that may occur during the drilling process.

[0048] In the present invention, the spline connection method of the external spline main shaft 11 and the internal spline main shaft 12 allows a certain axial movement, and this design can compensate for the axial displacement that may occur during the drilling process. During actual drilling operations, due to the forces acting on the drill bit in different directions and the changes in geological conditions, axial displacement may occur. The structure of the spline connection can adapt to this axial displacement without affecting power transmission, ensuring the normal operation of the power head assembly and improving the reliability and service life of the equipment.

[0049] Embodiment 3

[0050] Please refer to Figures 1 - 16, the driven gear set 10 includes: a movable sleeve slidably connected to the outer side surface of the internal spline main shaft 12, and a plurality of axial ridges on the outer side surface of the internal spline main shaft 12 are slidably fitted in a plurality of axial grooves on the inner side surface of the movable sleeve; the movable sleeve is connected to the mechanical shift mechanism 7; a first driven gear and a second driven gear are fixedly connected to the movable sleeve. The driving gear set 9 includes: a fixed sleeve fixedly connected to the power input shaft 6, and a first driving gear and a second driving gear are fixedly connected to the fixed sleeve; the first driven gear and the second driven gear are located between the first driving gear and the second driving gear.

[0051] The working principle and technical effect of the above technical solution are as follows:

[0052] In the power head assembly of the all-hydraulic exploration drill of the present invention, the hydraulic motor 2 drives the power input shaft 6 to rotate, and the fixed sleeve on the power input shaft 6 and the driving gear set 9 (the first driving gear and the second driving gear) fixed to the fixed sleeve rotate accordingly. The mechanical shifting mechanism 7 controls the movable sleeve of the driven gear set 10 to slide on the outer side surface of the internal spline main shaft 12, thereby changing the meshing state of the driven gear set 10 (the first driven gear and the second driven gear) and the driving gear set 9 (the first driving gear and the second driving gear), realizing power transmission and shifting; there are multiple axial ridges on the outer side surface of the internal spline main shaft 12, and multiple axial grooves on the inner side surface of the movable sleeve, and the two are in sliding fit. The mechanical shifting mechanism 7 is connected to the movable sleeve. When the mechanical shifting mechanism 7 acts, it will push the movable sleeve to slide axially along the internal spline main shaft 12. Due to the cooperation of the axial ridges and the axial grooves, the movable sleeve can stably drive the first driven gear and the second driven gear to move during the sliding process. At the same time, the rotation of the internal spline main shaft 12 can also be transmitted to the movable sleeve and the driven gear set 10 through this cooperation. When the mechanical shifting mechanism 7 pushes the movable sleeve to slide in one direction so that the first driven gear meshes with the first driving gear, the rotation of the power input shaft 6 is transmitted to the first driven gear through the first driving gear, and then drives the movable sleeve and the internal spline main shaft 12 to rotate, realizing a transmission ratio, corresponding to the low gear state. When the mechanical shifting mechanism 7 pushes the movable sleeve to slide in the other direction so that the second driven gear meshes with the second driving gear, the rotation of the power input shaft 6 is transmitted to the second driven gear through the second driving gear, and then drives the movable sleeve and the internal spline main shaft 12 to rotate, realizing another transmission ratio, corresponding to the high gear state. When the movable sleeve is in the middle position and neither the first driven gear nor the second driven gear meshes with the first driving gear and the second driving gear, the rotation of the power input shaft 6 cannot be transmitted to the driven gear set 10 and the internal spline main shaft 12. At this time, it is the neutral state of the power head assembly. By controlling the sliding of the movable sleeve by the mechanical shifting mechanism 7, different meshing combinations of the driven gear set 10 and the driving gear set 9 are realized, so as to provide at least two different transmission ratios to meet the requirements of the all-hydraulic exploration drill for speed and torque under different drilling conditions. For example, when drilling a harder formation, it can be switched to the low gear to obtain a larger torque; when drilling a softer formation, it can be switched to the high gear to increase the drilling speed. The method of matching the axial ridges and axial grooves of the movable sleeve and the internal spline main shaft 12 not only ensures that the movable sleeve can slide flexibly on the internal spline main shaft 12 to realize the shifting function, but also can effectively transmit torque to ensure the stability of power transmission. At the same time, this structural design makes the layout of the driven gear set 10 and the driving gear set 9 relatively compact, reduces the overall volume of the power transmission box assembly, and is beneficial to the miniaturization and integration design of the all-hydraulic exploration drill. The mechanical shifting mechanism 7 directly controls the sliding of the movable sleeve, with simple and direct operation. Compared with some complex shifting methods, it reduces the intermediate links, reduces the probability of failure, and improves the reliability and stability of shifting.Moreover, the sliding fit mode of the axial convex ribs and axial grooves has a certain guiding and positioning effect, which can accurately realize the meshing and separation of the driven gear set 10 and the driving gear set 9, ensuring the accuracy of gear shifting.

[0053] Embodiment 4

[0054] Please refer to Figures 1 - 16 , the mechanical shifting mechanism 7 includes: a guide shaft 13 installed in the box body, the axis of the guide shaft 13 is collinear with the axis of the movable sleeve, a shifting card plate 14 is slidably connected to the guide shaft 13, the shifting card plate 14 is clamped in an annular groove on the outer side surface of the towing seat 15, and the movable sleeve is rotatably connected in the round opening of the towing seat 15 through a pedestal bearing; a shifting lever 16 is slidably connected in a shifting chute on the shifting card plate 14, one end of the shifting lever 16 is fixed to a swing arm 17, the other end of the swing arm 17 is fixedly connected to a rotating shaft 18 arranged on the top end cover of the box body, and one end of the rotating shaft 18 passing out above the end cover is connected to a shifting controller. The shifting controller includes: a hinge seat 19 fixed to the top of the rotating shaft 18, the hinge seat 19 is rotatably connected to a shifting handle 20 through a hinge shaft, a positioning plug 21 is fixedly connected below the shifting handle 20, the positioning plug 21 is arranged opposite to a positioning plug board 22 fixedly connected to the top end cover of the box body, and a stop socket and two shifting sockets for inserting the positioning plug 21 are arranged on the positioning plug board 22; magnetic attraction blocks capable of magnetically attracting and matching with the positioning plug 21 are fixedly connected in both the stop socket and the shifting sockets.

[0055] The working principle and technical effects of the above technical solution are as follows:

[0056] In the power head assembly of the full hydraulic exploration drill of the present invention, the operator initiates a gear shifting operation by operating the gear shifting handle 20. A positioning plug rod 21 is fixedly connected below the gear shifting handle 20. The positioning plug rod 21 is arranged opposite to a positioning plug plate 22 fixedly connected to the end cover at the top of the box body. The positioning plug plate 22 is provided with a stop socket and two gear shifting sockets. When gear shifting is required, first lift the gear shifting handle 20, so that relative rotation occurs between the hinge seat 19 and the gear shifting handle 20, and the positioning plug rod 21 will be pulled out from the currently inserted socket. Then control the movement of the gear shifting handle 20. At this time, the gear shifting operation can be carried out. After the gear shifting operation, insert the positioning plug rod 21 into the target socket to realize the limit of the gear shifting handle 20 and completely complete the gear shifting operation. The gear shifting handle 20 is connected to the rotating shaft 18 through the hinge seat 19. When the gear shifting handle 20 moves, it will drive the rotating shaft 18 to rotate. The other end of the rotating shaft 18 is fixedly connected with a swing arm 17. Therefore, the rotation of the rotating shaft 18 will cause the swing arm 17 to swing. When the swing arm 17 swings, the gear shifting lever 16 slides in the gear shifting chute and pushes the gear shifting card plate 14 to slide along the guide shaft 13. The axis of the guide shaft 13 is collinear with the axis of the movable sleeve, ensuring the accuracy of the sliding direction of the gear shifting card plate 14. The gear shifting card plate 14 is clamped in the annular groove on the outer side surface of the traction seat 15. The movable sleeve is rotatably connected in the round opening of the traction seat 15 through a pedestal bearing. Therefore, the sliding of the gear shifting card plate 14 will drive the traction seat 15 and the movable sleeve to move axially along the internal spline main shaft 12. The movable sleeve is fixedly connected with a first driven gear and a second driven gear. The movement of the movable sleeve enables the driven gear set and the driving gear set to achieve different meshing combinations, thereby completing the gear shifting operation. In the present invention, magnetic attraction blocks that can be magnetically attracted and matched with the positioning plug rod 21 are fixedly connected in both the stop socket and the gear shifting socket. When the positioning plug rod 21 is inserted into the corresponding socket, the magnetic attraction block will be magnetically attracted and matched with the positioning plug rod 21 to fix the gear shifting handle 20 at the current position, ensuring the stability of the state after gear shifting and preventing the gear shifting handle 20 from accidentally moving due to factors such as vibration during the operation of the drill.

[0057] Embodiment 5

[0058] Please refer to Figures 1 - 16 , the lubricating oil distributor 5 includes: a distribution box installed in the box body. The distribution box is connected to the output end of the oil radiator 3 through a hose. A plurality of fixed flow dividing pipes and a plurality of movable flow dividing pipes are connected to the distribution box. The plurality of fixed flow dividing pipes are respectively arranged towards the driving gear set 9, the connection bearing between the driving gear set 9 and the box body, and the connection bearing between the driven gear set 10 and the box body. The plurality of movable flow dividing pipes are connected to the traction seat 15, and the outflow ports of the movable flow dividing pipes are arranged towards the driven gear set 10.

[0059] The working principle and technical effects of the above technical solution are as follows:

[0060] In the power head assembly of the all-hydraulic exploration drill of the present invention, multiple fixed flow-dividing pipes are arranged respectively towards the driving gear set 9, the connecting bearings between the driving gear set 9 and the box body, and the connecting bearings between the driven gear set 10 and the box body, which can accurately deliver lubricating oil to these key parts that are prone to wear and heat generation, ensuring that all connection points and rotating parts can be fully lubricated, effectively reducing the occurrence probability of wear and faults. The movable flow-dividing pipe is connected to the towing seat 15, and the outlet is arranged towards the driven gear set 10. Since the driven gear set 10 will change its position as the movable sleeve moves during the gear shifting process, the traditional lubrication method is difficult to adapt to this dynamic change. However, the movable flow-dividing pipe moves with the towing seat 15 and can always accurately deliver lubricating oil to the driven gear set 10, ensuring continuous lubrication of the driven gear set 10 even during the dynamic process of gear shifting, and significantly improving the stability and reliability of the driven gear set 10 during gear shifting.

[0061] In addition, the design of multiple fixed flow-dividing pipes and movable flow-dividing pipes makes the lubricating oil distributor have high flexibility and scalability. If it is necessary to upgrade or improve the power head assembly subsequently, add new transmission parts or change the layout of parts, only by appropriately adjusting the number and position of the flow-dividing pipes, it is convenient to achieve lubrication of the new parts without large-scale transformation of the entire lubrication system.

[0062] Embodiment 6

[0063] Please refer to Figures 1 - 16 , the oil radiator 3 includes: an oil heat dissipation box 23, the inlet and outlet of the oil heat dissipation box 23 are respectively connected to the lubricating oil pump 4 and the lubricating oil distributor 5 through pipelines, a temperature controller is arranged in the oil heat dissipation box 23, and the temperature controller is electrically connected to a cooling fan 24 installed on the side of the oil heat dissipation box 23 to control the cooling fan 24 to start to cool the lubricating oil in the oil heat dissipation box 23 by air cooling when the temperature of the lubricating oil in the oil heat dissipation box 23 exceeds a preset value.

[0064] The working principle and technical effects of the above technical solution are as follows:

[0065] In the power head assembly of the full hydraulic exploration drill of the present invention, the lubricating oil pump 4 serves as the power source, extracts the lubricating oil from the system, and transports it through a pipeline to the inlet of the oil cooling tank 23 of the oil cooler 3. After the lubricating oil enters the oil cooling tank 23, it flows inside the tank, then flows through a pipeline from the outlet to the lubricating oil distributor 5, and the distributor then transports the lubricating oil to each lubrication-required part of the power head assembly, such as the gear set, bearings, etc. After that, after the lubricating oil completes the lubrication task, it will flow back to the lubricating oil pump 4, forming a complete circulation loop. A temperature controller is installed inside the oil cooling tank 23, and its main function is to monitor the temperature of the lubricating oil in the oil cooling tank 23 in real time. The temperature controller will compare and analyze the monitored temperature data with the pre-set temperature value. When the temperature controller monitors that the temperature of the lubricating oil in the oil cooling tank 23 is within the pre-set value range, it indicates that the temperature of the lubricating oil is appropriate at this time and no additional heat dissipation measures are required. Therefore, the temperature controller will not send an opening signal to the cooling fan 24, and the cooling fan 24 is in the off state to save energy. Once the temperature controller detects that the temperature of the lubricating oil exceeds the pre-set value, it means that the temperature of the lubricating oil is too high. If heat dissipation is not carried out in time, it may affect the performance of the lubricating oil and further affect the normal operation of the power head assembly. At this time, the temperature controller will immediately send an electrical signal, and the electrically connected cooling fan 24 will start after receiving the signal. The cooling fan 24 operates to generate wind, air-cool the oil cooling tank 23, accelerate the heat dissipation of the lubricating oil in the tank, and gradually reduce the temperature of the lubricating oil to within the pre-set value range. When the temperature of the lubricating oil drops below the pre-set value, the temperature controller will control the cooling fan 24 to stop working again, and so on in a cycle, ensuring that the temperature of the lubricating oil in the oil cooling tank 23 always remains within an appropriate range and guaranteeing the stable operation of the power head assembly.

[0066] Embodiment 7

[0067] Please refer to Figures 1 - 16 , one end of the power input shaft 6 away from the hydraulic motor 2 is connected to the pump shaft of the lubricating oil pump 4 to perform synchronous drive control on the lubricating oil pump 4.

[0068] The working principle and technical effect of the above technical solution are:

[0069] When the driving speed of the hydraulic motor 2 increases, the operating speeds and loads of various transmission components inside the power head assembly, such as the gear set, bearings, etc., will also increase correspondingly. This means that their demand for lubrication is more urgent. At this time, since the lubricating oil pump 4 is driven synchronously with the power input shaft 6, the rotational speed of the lubricating oil pump 4 will also increase, thereby increasing the lubricating oil circulation speed. In this way, according to the actual operating conditions of the equipment, lubricating oil can be provided to each lubrication-required part in a timely and sufficient manner, ensuring that the friction between components is effectively reduced under high-speed operation and high-load conditions, reducing wear and heat generation, and improving the reliability and stability of the equipment. By connecting the power input shaft 6 with the pump shaft of the lubricating oil pump 4, when the hydraulic motor 2 drives the power input shaft 6, it drives the lubricating oil pump 4 to work at the same time, without the need to separately set a power source for the lubricating oil pump 4. This not only simplifies the structure of the system, reduces the number of components of the equipment, reduces the complexity and failure rate of the equipment, but also saves the manufacturing cost and installation space of the equipment. Since the rotational speed of the lubricating oil pump 4 changes synchronously with the driving speed of the hydraulic motor 2, the situation of excessive or insufficient operation of the lubricating oil pump 4 is avoided. When the equipment operates at a low speed, the lubricating oil pump 4 also works at a low speed, reducing unnecessary energy consumption; while when the equipment operates at a high speed, the lubricating oil pump 4 can provide sufficient lubricating oil in a timely manner to ensure the normal operation of the equipment. The adaptive working mode effectively reduces the energy consumption of the entire system and improves the energy utilization efficiency.

[0070] Embodiment 8

[0071] Please refer to Figures 1 - 16 , in the power head assembly of the full-hydraulic exploration drill of the present invention, the second solution for the oil cooler 3 is as follows: The oil cooler 3 includes: a radiator bracket 301, on which an oil inlet cooling pipe 302 and an oil outlet cooling pipe 303 are installed. An oil inlet interface is provided at the bottom of the oil inlet cooling pipe 302, and an oil filter 304 is connected to the top of the oil inlet cooling pipe 302. An oil outlet interface is provided at the bottom of the oil outlet cooling pipe 303, and a maintenance end cover 305 is connected to the top of the oil outlet cooling pipe 303. The upper sides of the oil inlet cooling pipe 302 and the oil outlet cooling pipe 303 are connected by three oil guiding and cooling pipes 306 arranged from top to bottom; the oil inlet cooling pipe 302 and the oil outlet cooling pipe 303 are also connected by multiple upper and lower heat dissipation fins 307, and the multiple heat dissipation fins 307 are arranged opposite to the cooling fan installed on the radiator bracket 301; the oil inlet interface and the oil outlet interface are respectively connected to the lubricating oil pump 4 and the lubricating oil distributor 5 through pipelines.

[0072] The working principle and technical effects of the above technical solution are as follows:

[0073] When the lubricating oil pump 4 is working, it transports the lubricating oil to the oil inlet interface of the oil radiator 3 through a pipeline. The lubricating oil enters the oil inlet and heat dissipation pipe 302 from the oil inlet interface. During the upward flow, it will first pass through the oil filter 304. The oil filter 304 preliminarily filters the lubricating oil, removing impurities, metal debris, etc. that may be contained therein, ensuring the cleanliness of the lubricating oil entering the subsequent heat dissipation and distribution links, and reducing the wear of equipment components; after the filtered lubricating oil reaches the top of the oil inlet and heat dissipation pipe 302, it flows into the oil outlet and heat dissipation pipe 303 through three oil guiding and heat dissipation pipes 306 arranged from top to bottom. During this process, the lubricating oil flows in the oil guiding and heat dissipation pipes 306, increasing the contact area with the outside world and the flow path, which helps to dissipate heat. At the same time, the oil inlet and heat dissipation pipe 302 and the oil outlet and heat dissipation pipe 303 are connected by multiple upper and lower heat dissipation fins 307. The heat dissipation fins 307 further increase the heat dissipation area. The cooling fan installed on the radiator bracket 301 blows air towards the multiple heat dissipation fins 307, accelerating the air flow and taking away the heat on the heat dissipation fins 307, the oil inlet and heat dissipation pipe 302, the oil outlet and heat dissipation pipe 303, and the oil guiding and heat dissipation pipes 306, thereby realizing the effective heat dissipation and cooling of the lubricating oil. The lubricating oil after heat dissipation and cooling flows downward in the oil outlet and heat dissipation pipe 303, and finally flows out from the oil outlet interface, and then is transported to the lubricating oil distributor 5 through a pipeline. The lubricating oil distributor 5 distributes the cooled lubricating oil to each lubrication-required part of the power head assembly of the full hydraulic exploration drill, completing the entire lubrication and heat dissipation cycle.

[0074] In the present invention, by means of the oil guiding and heat dissipation pipes 306, the flow path and heat dissipation area of the lubricating oil are increased, and the heat dissipation fins 307 further expand the heat dissipation area. Coupled with the cooling fan to accelerate the air convection, this multi-channel heat dissipation design can efficiently dissipate the heat in the lubricating oil, ensuring that the lubricating oil maintains a low temperature before entering each component of the power head assembly, effectively reducing the risk of equipment failure due to excessive oil temperature; the setting of the three oil guiding and heat dissipation pipes 306 and the multiple heat dissipation fins 307 makes the heat dissipation process more uniform and stable. Even when the equipment operates at a high load for a long time, it can ensure continuous and effective heat dissipation, maintain the performance stability of the lubricating oil, and extend the service life of the equipment. The setting of the oil filter 304 can remove impurities and debris in the lubricating oil before it enters the heat dissipation and distribution system. This not only protects the subsequent heat dissipation components and distribution components, reduces the possibility of blockage and wear, but also ensures the cleanliness of the lubricating oil transported to each component of the power head assembly, improving the lubrication effect and reliability of the equipment.

[0075] Example 9

[0076] Please refer to Figures 1 - 16, the oil filter 304 includes: a cylindrical filter screen 308 with an oil inlet at the bottom. The top and bottom of the cylindrical filter screen 308 are fixedly connected to an upper reinforcing pipe 309 and a lower reinforcing pipe 310 respectively. The bottom of the lower reinforcing pipe 310 is sealingly and rotatably connected to an annular seat 311 on the inner wall of the oil inlet and heat dissipation pipe 302. The closed cover at the top of the upper reinforcing pipe 309 is fixedly connected to the bottom of the limit rotating shaft 312. The middle of the limit rotating shaft 312 is sealingly rotatably arranged on the movable ring seat 313. The limit rotating shaft 312 is rotatably connected to the limit top plate 314. The limit top plate 314 is located above the movable ring seat 313. The limit top plate 314 is fixedly connected to the upper part of the oil inlet and heat dissipation pipe 302 through a side frame; the top of the limit rotating shaft 312 is connected to the output shaft of a small motor 315 arranged on the limit top plate 314; the movable ring seat 313 is fixedly connected to the top of the pressure control pipe 316. A pressure-bearing spring 317 sleeved on the limit rotating shaft 312 is connected between the movable ring seat 313 and the limit top plate 314; the pressure control pipe 316 is sealingly slidably arranged at the upper end inside the oil inlet and heat dissipation pipe 302. The bottom of the pressure control pipe 316 is fixedly connected to the outer ring surface of a pressure-bearing ring 318. The inner ring surface of the pressure-bearing ring 318 is fixedly connected to a protective ring 319. The protective ring 319 is sealingly sleeved outside the filter holes above the cylindrical filter screen 308; an oil filtering area is formed between the pressure-bearing ring 318, the inner wall of the oil inlet and heat dissipation pipe 302, the annular seat 311 and the outer wall of the cylindrical filter screen 308; the pressure control pipe 316 blocks the connection port between the oil inlet and heat dissipation pipe 302 and the three oil guiding and heat dissipation pipes 306. When the inlet oil pressure reaches the preset value, when the pressure-bearing ring 318 drives the pressure control pipe 316 to slide upward and contact to block the connection port under the pressure of the oil, the oil filtering area is communicated with the oil guiding and heat dissipation pipes 306.

[0077] The working principle and technical effects of the above technical solution are as follows:

[0078] In the power head assembly of the full hydraulic exploration drill of the present invention, under normal conditions, the pressure control pipe 316 blocks the connection port inside of the oil inlet and heat dissipation pipe 302 and the three oil guiding and heat dissipation pipes 306. The three oil guiding and heat dissipation pipes 306 are all in a closed state. When the lubricating oil enters the oil inlet and heat dissipation pipe 302 and flows upward, it can enter the oil filtering area through the filter holes of the cylindrical filter screen 308 that are not sealed by the protective ring 319. As the lubricating oil continues to be injected, the pressure gradually increases, and an upward thrust can be generated on the pressure-bearing ring 318. When the pressure-bearing ring 318 slides upward, it drives the pressure control pipe 316 and the protective ring 319 to slide upward. When the pressure control pipe 316 slides upward, it drives the movable ring seat 313 to move upward and compresses the pressure-bearing spring 317. After the small motor 315 is started, it can drive the limit rotating shaft 312 to rotate. When the limit rotating shaft 312 rotates, it can drive the closing cover and the upper reinforcing pipe 309 to rotate, thereby controlling the rotation of the cylindrical filter screen 308 and the lower reinforcing pipe 310. When the cylindrical filter screen 308 rotates, its relative position with the three oil guiding and heat dissipation pipes 306 is changed, so that when the lubricating fluid is discharged into the three oil guiding and heat dissipation pipes 306, the cylindrical filter screen 308 at different positions is evenly impacted, reducing the excessive local damage to the cylindrical filter screen 308. And the rotating cylindrical filter screen 308 filters, which can reduce the probability of blockage of the cylindrical filter screen 308. When the pressure control pipe 316 slides upward, the blockage of the three oil guiding and heat dissipation pipes 306 is gradually released. The greater the pressure, the more the number of oil guiding and heat dissipation pipes 306 whose blockage is released. Thus, the lubricating oil under different pressures is transported to the oil outlet and heat dissipation pipe 303 through different numbers of oil guiding and heat dissipation pipes 306. And when the protective ring 319 slides upward, the blockage of some filter holes of the cylindrical filter screen 308 can be released, increasing the filtering contact area of the cylindrical filter screen 308 and improving the filtering speed to ensure the filtering effect. In addition, the three oil guiding and heat dissipation pipes 306 are automatically opened in sequence from bottom to top under different pressures. In the case of relatively small pressure, if the lowermost oil guiding and heat dissipation pipe 306 is blocked, the pressure will increase, resulting in the opening of the second oil guiding and heat dissipation pipe 306. If the second oil guiding and heat dissipation pipe 306 is also blocked, the pressure will continue to increase, resulting in the opening of the third oil guiding and heat dissipation pipe 306. The setting of this structure can reduce the maintenance frequency of the oil cooler 3 and ensure the filtering effect to a certain extent.

[0079] The oil filter 304 further includes: a cleaning brush 320 fixedly connected to the bottom of the pressure-bearing ring 318. The bristles of the cleaning brush 320 are in contact and cooperation with the side wall of the cylindrical filter screen 308, and the cleaning brush 320 is slidably arranged in the longitudinal through hole of the annular seat 311 below. When the cylindrical filter screen 308 rotates, different positions of the cylindrical filter screen 308 come into contact with the cleaning brush 320, thereby effectively cleaning the cylindrical filter screen 308. Moreover, the top of the cleaning brush 320 is connected to the bottom of the pressure-bearing ring 318, so that the cleaning brush 320 can slide synchronously when the pressure-bearing ring 318 slides upward. When the lower part of the cleaning brush 320 slides upward out of the longitudinal through hole of the annular seat 311, the contact area between the cleaning brush 320 and the cylindrical filter screen 308 increases, and the cleaning range of the cylindrical filter screen 308 is synchronously expanded.

[0080] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention.

[0081] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or communicable with each other; it can be directly connected, or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0082] Although the embodiments of the present invention have been disclosed as above, it is not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily achieved. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the examples shown and described here.

Claims

1. Fully hydraulic exploration drilling rig power head assembly, characterized in that: include: A power transmission case assembly, a hydraulic motor, an oil radiator, a lubricating oil pump and a lubricating oil distributor; the power input shaft of the power transmission case assembly is connected to the hydraulic motor; the oil extraction pipe and the oil outlet pipe of the lubricating oil pump are respectively connected to the power transmission case assembly and the oil radiator to draw the lubricating oil in the power transmission case assembly into the oil radiator for heat dissipation; the lubricating oil distributor installed on the power transmission case assembly is connected to the oil radiator to transport the lubricating oil after heat dissipation in the oil radiator to the power transmission case assembly.

2. The fully hydraulic exploration drilling rig power head assembly according to claim 1, characterized in that: The power transmission box assembly also includes: a box body, in which the power input shaft and the power transmission shaft assembly are sealed and rotatably connected; a driving gear set is fixedly connected to the power input shaft, and a driven gear set is movably connected to the power transmission shaft assembly, and the driven gear set is connected to a mechanical shifting mechanism installed on the box body to cooperate with or separate from the driving gear set under the control of the mechanical shifting mechanism.

3. The fully hydraulic exploration drilling rig power head assembly according to claim 2, characterized in that: The power transmission shaft assembly includes: an external spline main shaft and an internal spline main shaft; the two ends of the internal spline main shaft are sealed and rotated in the mounting holes on both sides of the box body, the spline teeth on the outer side of the external spline main shaft are connected to the spline groove on the inner side of the internal spline main shaft, and the spline teeth on the inner side of the internal spline main shaft are connected to the spline groove on the outer side of the external spline main shaft; the outer side of the internal spline main shaft is movably connected to the driven gear set.

4. The fully hydraulic exploration drilling rig power head assembly according to claim 3 is characterized in that: The driven gear set includes: a movable sleeve slidably connected to the outer side of the internal spline main shaft, and multiple axial ridges on the outer side of the internal spline main shaft are slidably matched in multiple axial grooves on the inner side of the movable sleeve; the movable sleeve is connected to the mechanical shifting mechanism; and driven gears 1 and 2 are fixedly connected to the movable sleeve.

5. The fully hydraulic exploration drilling rig power head assembly according to claim 4, characterized in that: The driving gear set comprises: a fixed sleeve fixedly connected to the power input shaft, on which a driving gear 1 and a driving gear 2 are fixedly connected; and a driven gear 1 and a driven gear 2 are located between the driving gear 1 and the driving gear 2.

6. The fully hydraulic exploration drilling rig power head assembly according to claim 4, characterized in that: The mechanical shift mechanism includes: a guide shaft installed in the box body, the axis of the guide shaft is colinear with the axis of the movable sleeve, the guide shaft is slidably connected to a shift card plate, the shift card plate is clamped in the annular groove on the outer side of the traction seat, and the movable sleeve is rotatably connected in the circular mouth of the traction seat through a seat bearing; a shift lever is slidably connected in the shift slide groove on the shift card plate, the shift lever is fixed to one end of the swing arm, and the other end of the swing arm is fixedly connected to a rotating shaft rotated on the end cover on the top of the box body, and the end of the rotating shaft passing through the top of the end cover is connected to the shift controller.

7. The fully hydraulic exploration drilling rig power head assembly according to claim 6, characterized in that: The shift controller includes: an articulated seat fixed on the top of the rotating shaft, the articulated seat is rotatably connected to the shift handle through an articulated shaft, a positioning rod is fixedly connected under the shift handle, the positioning rod is arranged opposite to a positioning plate fixedly connected to the top end cover of the box body, and the positioning plate is provided with a stop socket and two shift sockets for plugging the positioning rod; magnetic blocks that can magnetically cooperate with the positioning rod are fixedly connected in the stop socket and the shift socket.

8. The fully hydraulic exploration drilling rig power head assembly according to claim 6, characterized in that: The lubricating oil distributor comprises: a distribution box installed in a housing, the distribution box is connected to the output end of the oil radiator through a hose, a plurality of fixed shunt pipes and a plurality of dynamic shunt pipes are connected to the distribution box, the plurality of fixed shunt pipes are respectively arranged toward the driving gear set, the connecting bearings between the driving gear set and the housing, and the connecting bearings between the driven gear set and the housing; a plurality of dynamic shunt pipes are connected to the traction seat, and the outlets of the dynamic shunt pipes are arranged toward the driven gear set.

9. The fully hydraulic exploration drilling rig power head assembly according to claim 1, characterized in that: The oil radiator includes: an oil cooling box, the oil inlet and oil outlet of the oil cooling box are respectively connected to the lubricating oil pump and the lubricating oil distributor through pipelines, a thermostat is arranged in the oil cooling box, and the thermostat is electrically connected to the cooling fan installed on the side of the oil cooling box to control the cooling fan to start and cool the lubricating oil in the oil cooling box by air when the temperature of the lubricating oil in the oil cooling box exceeds a preset value.

10. The fully hydraulic exploration drilling rig power head assembly according to claim 1, characterized in that: One end of the power input shaft away from the hydraulic motor is connected to the pump shaft of the lubricating oil pump to perform synchronous drive control on the lubricating oil pump.

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