CN106988671B - Power rotary system integrated with flushing slag discharging system for core drilling machine - Google Patents

Abstract

The power rotary system comprises a hydraulic rotary motor, a bearing seat, a main shaft and a water supply sleeve, wherein the hydraulic rotary motor is arranged on the upper end surface of the bearing seat, the water supply sleeve is arranged on the lower end surface of the bearing seat, through holes are formed in the centers of the bearing seat and the water supply sleeve, and the upper end of the main shaft is fixedly connected with an output shaft of the hydraulic rotary motor after passing through the central through hole of the bearing seat and the central through hole of the water supply sleeve; the lower end of the main shaft is provided with an axial center hole; the lower end of the main shaft is provided with a transverse hole communicated with the axial central hole, one side of the water supply sleeve is also provided with a transverse hole, and the transverse hole of the water supply sleeve is communicated with the transverse hole at the lower end of the main shaft; the flushing slag discharging system is arranged on the bearing seat. The invention has simple and compact structure, small volume, light weight and high reliability. The invention is beneficial to the light weight of the whole drilling machine through the function integration (namely, the flushing slag discharging system is arranged on the power revolving system), so that the drilling machine can be carried on a manned submersible vehicle or a cabled underwater Robot (ROV).

Description

A power rotary system integrated with a flushing and slag discharge system for a core drilling rig

technical field

The invention relates to a power slewing system integrated with a flushing and slag discharge system for a carry-on deep-sea mineral resource core drilling rig.

Background technique

Existing deep-sea core drilling rigs are relatively large in size and have no walking function. If it is necessary to adjust the bottom position of the drilling rig, it is necessary to move the mother ship to drive the optical cable to realize the relocation of the drilling rig. In the case of complex deep-sea geology, it is often difficult to address and locate. At present, manned submersibles (such as Jiaolong) and cabled underwater robots (ROV) are widely used in many aspects such as marine mineral mining, underwater engineering construction, marine rescue and salvage, military and national defense construction, and can better assist The drilling rig completes the fixed-point mining tasks in the mining area. However, in the mining area, the use of existing deep-sea drilling rigs is relatively limited when conducting sample research through site selection and coring.

Existing traditional drilling rigs generally weigh more than 5t in the air, and the outer frame size is generally more than 2m×2m×4m. The structure is complex and the quality is too heavy. When it is lowered, it often requires an underwater remote control robot to survey the seabed in advance and select a flatness standard area for other drilling rigs. Work on the bottom; that is to say, it needs to be addressed by the underwater remote control robot first, and then drilled to the address that has been found by the drilling rig to realize drilling. Moreover, the drilling rig has no self-moving function and can only be dragged by the movement of the mother ship. It is only suitable for fixed-point coring work in mining areas that have completed exploration. It is not suitable for carrying on manned submersibles and cable underwater robots (ROV). Realize random access.

The power rotary system and the flushing system of the existing deep-sea core drilling rig are arranged separately, which is very bulky, heavy, long hydraulic pipelines and flushing pipelines, and consumes a lot of power.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the above-mentioned defects existing in the prior art, and provide a small-volume, beneficial to shorten the flushing hydraulic pipeline integrated flushing and slag discharge system for the carrying type deep-sea mineral resources core drilling rig Power swing system.

The technical solution adopted by the present invention to solve its technical problems is:

A power rotary system integrated with a flushing and slag discharge system for a core drilling rig, including a hydraulic rotary motor, a bearing seat, a main shaft and a water supply jacket. The hydraulic rotary motor is installed on the upper end surface of the bearing seat, and the water supply jacket is installed on the lower end surface of the bearing seat. The center of the bearing seat and the water supply jacket has a through hole, and the upper end of the main shaft is fixedly connected with the output shaft of the hydraulic rotary motor after passing through the center through hole of the bearing seat and the center of the water supply jacket. The lower end of the main shaft is provided with an axial center hole. The lower end of the main shaft is provided with a transverse hole connected with the axial center hole, and one side of the water supply jacket is also provided with a transverse hole, and the transverse hole of the water supply jacket communicates with the transverse hole at the lower end of the main shaft. The flushing and slag removal system is installed on the bearing seat.

Further, the flushing and slag discharge system includes a gear motor, a connecting sleeve, a gear pump and a flushing hydraulic pipeline. A motor mounting plate and a gear pump mounting plate are installed on the bearing seat of the power slewing system, the gear motor is mounted on the motor mounting plate, and the gear pump is mounted on the gear pump mounting plate. The gear motor is connected to the gear pump through a connecting sleeve to ensure that the two rotate at the same speed. The gear pump is connected with the flushing hydraulic pipeline, and the flushing hydraulic pipeline extends into the transverse hole of the water supply jacket.

Further, the guide rail slide plate is also included, and the bearing housing is fixedly connected with the guide rail slide plate. A guide rail is arranged on the drilling machine frame of the core drilling machine. The guide rail slide plate is installed on the guide rail of the drilling machine frame of the core drilling machine. The power slewing system is slidingly connected with the frame of the drilling rig. The power slewing system can slide on the guide rail of the drilling rig frame through the guide rail slide plate.

Further, two steel wire ropes are fixedly connected to the guide rail slide plate. One end of one of the wire ropes goes around the movable pulley block and links to each other with the guide rail slide plate, and the other end goes around the top pulley block and is fixed on the drilling rig frame, and the top pulley block is installed on the top inside of the drilling rig frame. One end of another wire rope is also connected to the guide rail slide plate of the power slewing system after bypassing the movable pulley block, and the other end is fixed on the drilling rig frame after bypassing the bottom pulley block, and the bottom pulley block is installed on the bottom inner side of the drilling rig frame. The movable pulley block is arranged between the top pulley block and the bottom pulley block. The movable pulley block is fixed on the piston rod end of the hydraulic cylinder, and the cylinder barrel of the hydraulic cylinder is fixed on the drilling rig frame.

Further, the lower end of the main shaft is fixedly connected with the core drilling tool of the core drilling machine. The main shaft of the power rotary system can drive the core drilling tool to rotate. The center of the core drilling tool is provided with an axial center hole. The axial center hole at the lower end of the main shaft communicates with the axial center hole of the core drilling tool. Core drilling tools are outsourced existing products.

The back of the drilling rig frame is equipped with a mounting interface. The drill bit is mounted on the head of the drill. The drill bit includes a drill body and alloy teeth embedded in the outer ring of the drill body, and the outer ring diameter of the alloy teeth is larger than the outer diameter of the drill body and the outer diameter of the drill tool.

The mounting interface of the mounted deep-sea mineral resources core drilling rig of the present invention can be fixed on a manned submersible or a cabled underwater robot through bolts and nuts.

The flushing and slag removal system and the power slewing system are integrated and installed together, and the flushing and slag removal system is integrated on the power slewing system of the power slewing system. The maximum external dimension and volume are more than 80% smaller than that of drilling rigs with the same coring length and capacity. After integration, under the premise of ensuring functionality, it is beneficial to reduce the volume and weight of the whole machine, shorten the length of hydraulic pipelines and flushing pipelines to reduce pressure drop, and reduce power consumption of the whole machine.

The invention has simple and compact structure, small volume, light weight and high reliability. Through the integration of functions (that is, the flushing and slag discharge system is installed on the power slewing system), the present invention is beneficial to make the whole drilling rig lightweight, so that the drilling rig can be mounted on a manned submersible or a cabled underwater robot (ROV), and follow it It can move freely in the mine area and realize the coring work of random site selection, so that any point can be selected at will for sampling work, which is convenient and does not need to be addressed first, which is in line with the trend of using underwater robots (ROV) as a platform to expand functions.

Description of drawings

Fig. 1 is a cross-sectional view of a power slewing system integrated with a flushing and slag discharge system for a core drilling rig;

Figure 2 is a three-dimensional structure diagram of the bearing seat;

Fig. 3 is the three-dimensional structural diagram of guide rail slide plate;

Fig. 4 is a three-dimensional structure diagram of a water supply jacket;

Fig. 5 is a front view of a mounted deep-sea mineral resource coring rig assembled from a drilling rig frame, a power slewing system, and a core drilling tool;

Fig. 6 is a left view of the mounted deep-sea mineral resource coring rig shown in Fig. 5;

Fig. 7 is a top view of the mounted deep-sea mineral resource coring rig shown in Fig. 5;

Fig. 8 is a rear view of the mounted deep-sea mineral resources coring drilling rig shown in Fig. 5 .

In the figure: 1——drilling rig frame; 2——power rotary system; 2-1——hydraulic rotary motor; 2-2——bearing seat; 2-3——rail slide plate; 4-1——the axial center hole at the lower end of the main shaft; 2-4-2——the transverse hole of the main shaft; 2-5——the water supply jacket; 2-5-1——the transverse hole of the water supply jacket; System; 3-1—gear motor; 3-2—connection sleeve; 3-3—gear pump; 3-4—flushing hydraulic pipeline; 4—core drilling tool; 5—mounting installation interface .

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Referring to the accompanying drawings, a power rotary system integrated with a flushing and slag discharge system for a core drilling rig, the power rotary system 2 includes a hydraulic rotary motor 2-1, a bearing seat 2-2, a main shaft 2-4 and a water supply jacket 2-5. The hydraulic rotary motor 2-1 is installed on the upper end surface of the bearing housing 2-2 through screws, and the water supply jacket 2-5 is installed on the lower end surface of the bearing housing 2-2 through screws. hole, the upper end of the main shaft 2-4 passes through the central through hole of the bearing seat 2-2 and the central through hole of the water supply jacket 2-5 and is fixedly connected with the output shaft of the hydraulic rotary motor 2-1. The lower end of the main shaft 2-4 has an axial center hole 2-4-1. The lower end of the main shaft 2-4 has a transverse hole 2-4-2 connected with the axial central hole 2-4-1, and the side of the water supply jacket 2-5 also has a transverse hole 2-5-1, and the water supply jacket 2-5 The transverse hole 2-5-1 communicates with the transverse hole 2-4-2 at the lower end of the main shaft 2-4. The flushing and slag removal system 3 is installed on the bearing seat 2-2, and rises and falls with the power slewing system.

The flushing and slag discharge system 3 includes a gear motor 3-1, a connecting sleeve 3-2, a gear pump 3-3 and a flushing hydraulic pipeline 3-4. A motor mounting plate (not shown in the figure) and a gear pump mounting plate (not shown in the figure) are installed on the bearing seat 2-2, the gear motor 3-1 is mounted on the motor mounting plate through bolts and nuts, and the gear pump 3- 3 Installed on the gear pump mounting plate through bolts and nuts. The gear motor 3-1 is connected with the gear pump 3-3 through the connecting sleeve 3-2 to ensure that the two rotate at the same speed. The gear pump 3-3 links to each other with the flushing hydraulic pipeline 3-4, and the flushing hydraulic pipeline 3-4 stretches in the transverse hole 2-5-1 of the water supply jacket 2-5.

It also includes a guide rail slide plate 2-3, and the bearing seat 2-2 is fixedly connected with the guide rail slide plate 2-3 through welding or bolts and nuts. The drilling machine frame 1 of the core drilling machine is provided with guide rails. Guide rail slide plate 2-3 is installed on the guide rail of rig frame 1. The power slewing system is slidingly connected with the drilling rig frame 1 . The power slewing system 2 can slide on the guide rail of the drilling rig frame 1 through the guide rail slide plate 2-3. The power slewing system 2 can slide on the guide rail of the drilling rig frame 1 through the guide rail slide plate 2-3.

Two steel wire ropes are fixedly connected on the guide rail slide plate. One end of wherein a wire rope walks around the movable pulley block and links to each other with the guide rail slide plate 2-3, and the other end walks around the top pulley block and is fixed on the drilling rig frame 1, and the top pulley block is installed on the top inboard of the drilling rig frame 1. One end of another wire rope is also connected with the guide rail slide plate 2-3 of the power slewing system after bypassing the movable pulley block, and the other end is fixed on the drilling rig frame 1 after bypassing the bottom pulley block, and the bottom pulley block is installed on the bottom inner side of the drilling rig frame 1. The movable pulley block is located between the top pulley block and the bottom pulley block. The movable pulley block is fixed on the piston rod end of the hydraulic cylinder, and the cylinder barrel of the hydraulic cylinder is fixed on the drilling rig frame 1 .

The lower end of the main shaft 2-4 is fixedly connected with the core drilling tool 4. The main shaft 2-4 of the power rotary system 2 can drive the core drilling tool 4 to rotate. The center of the core drilling tool 4 has an axial center hole. The core drilling tool 4 is an existing product purchased out. The axial central hole 2-4-1 at the lower end of the main shaft 2-4 communicates with the axial central hole of the core drilling tool 4.

The back of the drilling rig frame 1 is provided with a mounting interface 5 . The drill bit is mounted on the head of the drill. The drill bit includes a drill body and alloy teeth embedded in the outer ring of the drill body, and the outer ring diameter of the alloy teeth is larger than the outer diameter of the drill body and the outer diameter of the drill tool.

The mounting interface 5 of the mounted deep-sea mineral resources core drilling rig of the present invention can be fixed on a manned submersible or a cabled underwater robot through bolts and nuts.

The hydraulic rotary motor 2-1 can drive the main shaft 2-4 to rotate, and then drive the core drilling tool 4 to rotate. The hydraulic rotary motor 2-1 has the functions of low-speed forward rotation, high-speed forward rotation and low-speed reverse rotation, etc., and achieves the best drilling effect with different drilling pressure. The gear motor 3-1 drives the gear pump 3-3 to provide pressure seawater. Pressurized seawater flows into the axial center hole 2 at the lower end of the main shaft 2-4 through the flushing hydraulic pipeline 3-4, the transverse hole 2-5-1 of the water supply jacket 2-5, and the transverse hole 2-4-2 at the lower end of the main shaft 2-4 -4-1. The pressure seawater flowing into the axial center hole 2-4-1 at the lower end of the main shaft 2-4 flows to the bottom of the hole drilled by the drill bit after the axial center hole of the core drilling tool 4 and the drill bit.

Because the drill bit produces a cylindrical hole when drilling, and because the outer diameter of the drill and the outer diameter of the drill body are smaller than the diameter of the alloy tooth outer ring inlaid in the outer ring of the drill body, the wall of the drilled hole and the outer diameter of the drill An annular space is formed between the outer walls. This annular space will be used to drain the rock debris produced while drilling. Because the gear pump continuously presses the seawater into the drilling tool, after the flushing fluid (that is, the pressure seawater) flows out from the drill bit, it will flow out along the annular space to the orifice end under this pressure, and bring out the rock slag, so as to realize the drilling slag discharge and Cool the drill.

Through the extension and contraction of the piston rod of the hydraulic cylinder, the movable pulley block is driven to move upward or downward, and the movable pulley block drives the guide rail slide plate to slide upward or downward on the guide rail of the drilling rig frame 1 through the steel wire rope, thereby realizing the up and down movement of the entire power slewing system 2 control, realize the lifting and lowering of the core drilling tool 4, provide drilling pressure control for the drilling process, and provide core pulling force for collecting the core.

A preferred embodiment of the present invention has been introduced in detail above. The specific embodiments are only used to help understand the core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also belong to the protection scope of the claims of the present invention.

Claims (1)

1. A power rotary system integrated with a flushing and slag discharge system for a core drilling rig, characterized in that it includes a hydraulic rotary motor, a bearing seat, a main shaft and a water supply jacket, the hydraulic rotary motor is installed on the upper end surface of the bearing seat, and the water supply jacket Installed on the lower end surface of the bearing seat, the center of the bearing seat and the water supply jacket has a through hole, the upper end of the main shaft passes through the center through hole of the bearing seat and the center of the water supply jacket, and is fixedly connected with the output shaft of the hydraulic rotary motor; the lower end of the main shaft is provided with an axial Center hole; the lower end of the main shaft has a transverse hole connected with the axial central hole, and a transverse hole is also opened on one side of the water supply jacket, and the transverse hole of the water supply jacket is connected with the transverse hole at the lower end of the main shaft; the flushing and slag discharge system is installed on the bearing seat; The flushing and slag discharge system includes a gear motor, a connecting sleeve, a gear pump and a flushing hydraulic pipeline; the motor mounting plate and the gear pump mounting plate are installed on the bearing seat of the power slewing system, the gear motor is mounted on the motor mounting plate, and the gear pump is mounted on the The gear pump mounting plate; the gear motor is connected to the gear pump through the connecting sleeve; the gear pump is connected to the flushing hydraulic pipeline, and the flushing hydraulic pipeline extends into the horizontal hole of the water supply jacket; It also includes a guide rail slide plate, the bearing seat is fixedly connected with the guide rail slide plate; the guide rail slide plate is installed on the guide rail of the drill frame of the core drilling rig; two steel wire ropes are fixedly connected to the guide rail slide plate; The other end is fixed on the frame of the drilling rig after bypassing the top pulley block. The bottom pulley block is fixed on the drilling rig frame, and the bottom pulley block is installed on the bottom inner side of the drilling rig frame; the movable pulley block is arranged between the top pulley block and the bottom pulley block; the movable pulley block is fixed on the piston rod end of the hydraulic cylinder, and the cylinder barrel of the hydraulic cylinder is fixed on the on the rig frame.

Images