Overwater ultra-deep mixing pile machine power head device and operation method

Abstract

The overwater ultra-deep mixing pile machine power head device comprises a slurry supply system, an inner pipe is arranged at the pipeline connecting end of the slurry supply system, a drill rod and a drill bit are arranged on the lower portion of the inner pipe, and the inner pipe is fixedly connected with the drill rod and the drill bit through flanges; an outer pipe is arranged outside the inner pipe, a driven gear is arranged on the surface of the outer pipe, a gear box is arranged on the side face of the outer pipe, a power system is arranged on the upper portion of the gear box, and a transmission shaft of the power system extends into the gear box and is provided with a driving gear. Connection between the drill rod and the power head gear box is changed from rigidity to flexibility, the power head gear box, the drill rod and a drill bit are protected, impact of sea waves and surges on construction machinery in actual production is really solved, the equipment failure rate is reduced, offshore operation is difficult, efficiency is low, the construction period is long, input cost is low, and the method is suitable for popularization and application. The device is very convenient to mount and dismount, and has wide adaptability and good economic and social values.

Description

Technical Field

[0001] The present invention relates to the technical field of power heads for super-deep aquatic pile mixing machines, and more specifically to a power head device for super-deep aquatic pile mixing machines and an operating method thereof. Background Art

[0002] During the traditional construction of water mixing piles, due to the strong wind and waves at sea, the ships go up and down, sway from side to side, especially the swells are more destructive, causing the ships to sway, go up and down, swing their tails, rotate and other sea conditions. Conventional mixing pile equipment often causes drill rods to break, the drill rod joints to loosen and leak, and the pile driving power head is damaged by the impact of waves and swells, and the bearing seals in the equipment are dislocated or damaged, causing the equipment to not work properly, high maintenance costs, reduced operating time, and seriously affecting the production and construction period. Therefore, it is necessary to provide a new technical solution to solve the problem. Summary of the invention

[0003] The purpose of the present invention is to provide a power head device and an operating method of an underwater ultra-deep mixing pile driver, which solves the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an above-water super-deep mixing pile machine power head device and an operating method, comprising: a slurry supply system, a pipeline connection end of the slurry supply system is provided with an inner tube and a drill rod and a drill bit are provided at the lower part of the inner tube, the inner tube is fixedly connected to the drill rod and the drill bit through a flange, an outer tube is provided outside the inner tube and a driven gear is provided on the surface of the outer tube, a gear box is provided on the side of the outer tube and a power system is provided on the upper part of the gear box, a transmission shaft of the power system extends to the interior of the gear box and is installed with a driving gear, the driving gear and the driven gear are meshed with each other, an upper bearing system and a lower bearing system are provided between the inner tube and the gear box, an upper fixed support and a lower fixed support are provided at the upper and lower ends of the inner tube respectively, a lower spring is provided on the upper part of the lower fixed support and an upper spring is provided on the lower part of the upper fixed support, and the upper spring and the lower spring are both connected to the outer tube.

[0005] As a preferred embodiment of the present invention, splines are arranged between the outer tube and the inner tube, and the outer splines of the inner tube and the inner splines of the outer tube are engaged with each other.

[0006] As a preferred embodiment of the present invention, grooves matching the upper spring and the lower spring are provided inside the upper fixed support and the lower fixed support.

[0007] As a preferred embodiment of the present invention, both upper and lower ends of the outer tube are provided with grooves matching the upper spring column and the lower spring.

[0008] As a preferred embodiment of the present invention, the operation method of the power head device of the above-water ultra-deep mixing pile machine comprises the following steps:

[0009] Step 1: Turn on the power system, which transmits power to the driving gear in the gearbox through the transmission shaft, and the driving gear transmits power to the driven gear through gear meshing;

[0010] Step 2: The driven gear transmits power to the outer tube, so that the outer tube can rotate; the outer tube transmits power to the inner tube through the spline, so that the inner tube rotates;

[0011] Step 3: An upper bearing system and a lower bearing system are arranged between the inner tube and the gear box, so that the gear box is not affected by the rotation of the inner tube and remains relatively stationary;

[0012] Step 4: The lower end of the inner tube is connected to the drill rod and the drill bit by a flange, and when the inner tube rotates, the drill rod and the drill bit are driven to rotate simultaneously;

[0013] Step 5: The upper end of the inner tube is connected to the slurry supply system. The slurry supply system transports the slurry to the end of the drill rod and the drill bit through the hollow part of the inner tube and sprays it into the soil layer. The drill rod and the drill bit rotate and cut and stir the soil while moving upward and downward, driving the gear box of the power head to move upward and downward together, and mix the slurry provided by the slurry supply system with the soil to evenly strengthen the foundation;

[0014] Step 6: When the sea waves are strong and the ship shakes violently, the drill rod and drill bit of the pile mixer will rise and fall with the rise and fall of the ship; when the ship falls from the crest of the wave, the drill rod and drill bit cannot continue to fall after touching the bottom, and the gear box of the power head will continue to move downward. At this time, the outer tube spline connected to the gear box will move downward along the inner tube spline, and the lower spring at the lower end of the inner tube will buffer the downward movement of the outer tube, thereby protecting the gear box, drill rod and drill bit from damage; when the ship is thrown up from the wave valley, the drill rod and drill bit still remain in the soil layer, and the gear box of the power head will move upward with the ship. At this time, the outer tube spline connected to the gear box will move upward along the inner tube spline, and the upper spring at the lower end of the inner tube will buffer the upward movement of the outer tube, thereby protecting the gear box from damage.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention uses the power head device of the super-deep mixing pile machine on water. When encountering strong winds and waves and the ship is shaking greatly during construction, as the ship rises and falls, the device is passed between the ship, the power head and the drill rod, so that the drill rod can slide up and down in the power head with a certain amplitude, thereby alleviating the instantaneous impact of the power head gear box on the drill rod as the ship rises and falls, avoiding the drill rod from breaking or cracking due to too much impact force and leaking slurry, and also avoiding the drill rod from punching and damaging the gears and bearings inside the power head gear box. The device converts the connection between the drill rod and the power head gear box from rigid to flexible, which not only protects the power head gear box but also protects the drill rod and the drill bit, truly solves the impact of sea waves on construction machinery in actual production, reduces equipment failure rate, makes offshore operations difficult, has low efficiency, and has a long construction period, and has low investment cost, is very convenient to install and disassemble, has wide adaptability, and has good economic and social value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the outer tube of the present invention;

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the inner tube of the present invention.

[0020] In the figure: 1. slurry supply system; 2. upper fixed support; 3. upper spring; 4. lower spring; 5. lower fixed support; 6. power system; 7. outer tube; 8. inner tube; 9. gear box; 10. upper bearing system; 11. driving gear; 12. driven gear; 13. lower bearing system; 14. drill rod and drill bit. DETAILED DESCRIPTION

[0021] 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 described embodiments 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.

[0022] See also Figure 1-3 The present invention provides a technical solution: a power head device and an operating method of an underwater ultra-deep mixing pile driver.

[0023] In view of the above-mentioned problems to be solved: During the traditional construction of water mixing piles, due to the strong winds and waves at sea, the ships rise and fall, sway from side to side, and especially the swells are more destructive, causing the ships to sway, rise and fall, swing their tails, rotate and other sea conditions. Conventional mixing pile equipment often causes drill rods to break, the drill rod joints to loosen and leak slurry, and the pile driving power head is damaged by the impact of waves and swells, and the bearing seals in the equipment are dislocated or damaged, causing the equipment to not work properly, high maintenance costs, reduced operating time, and seriously affecting the production and construction period.

[0024] The solution is as follows: A power head device and operation method of an underwater ultra-deep mixing pile driver, comprising: a slurry supply system 1, an inner tube 8 is provided at the pipeline connection end of the slurry supply system 1, and a drill rod and a drill bit 14 are provided at the lower part of the inner tube 8, the inner tube 8 is fixedly connected to the drill rod and the drill bit 14 through a flange, an outer tube 7 is provided outside the inner tube 8, and a driven gear 12 is provided on the surface of the outer tube 7, a gear box 9 is provided on the side of the outer tube 7, and a power system 6 is provided on the upper part of the gear box 9, and the power system The transmission shaft of the system 6 extends to the interior of the gear box 9 and is installed with a driving gear 11, and the driving gear 11 and the driven gear 12 are meshed with each other. An upper bearing system 10 and a lower bearing system 13 are arranged between the inner tube 8 and the gear box 9. The upper and lower ends of the inner tube 8 are respectively provided with an upper fixed support 2 and a lower fixed support 5. The upper part of the lower fixed support 5 is provided with a lower spring 4 and the lower part of the upper fixed support 2 is provided with an upper spring 3. The upper spring 3 and the lower spring 4 are both connected to the outer tube 7. The power system 6 transmits power to the driving gear 11 in the gear box 9 through the transmission shaft, and the driving gear 11 in the gear box 9 transmits power to the driven gear 12 through gear engagement. The driven gear 12 and the outer tube 7 are connected by splines to realize the rotation of the outer tube 7; splines are arranged between the outer tube 7 and the inner tube 8, and the outer splines of the inner tube 8 and the inner splines of the outer tube 7 are engaged with each other, so that the outer tube 7 drives the inner tube 8 to rotate, and at the same time, the outer splines of the inner tube 8 can slide up and down along the inner splines of the outer tube 7; the upper and lower splines of the inner tube 8 The lower end is provided with a spring and a spring support to constrain the inner tube 8 to slide up and down within a certain range and slide slowly, so as to effectively absorb and buffer the energy wave impact of the surge wave; the lower end of the inner tube 8 is connected to the drill rod through a flange, and the movement of the inner tube 8 drives the drill rod to rotate and move up and down; the lower end of the drill rod is rigidly connected to the drill bit, and the movement of the drill rod drives the drill bit to rotate and move up and down, and the upper end of the inner tube 8 is connected to the slurry supply system 1, and the slurry supply system 1 transports the slurry to the end of the drill bit through the hollow part of the inner tube 8, and sprays it into the soil layer under a certain pressure.

[0025] Further improvements, such as Figure 2 , 3As shown: splines are arranged between the outer tube 7 and the inner tube 8, and the outer splines of the inner tube 8 engage with the inner splines of the outer tube 7. The inner tube 8 can slide up and down along the splines of the outer tube 7. This design not only ensures the effective transmission of power, but also allows the inner tube 8 to have a certain buffer space when subjected to external impact, thereby reducing the risk of equipment damage. The splines can be a toothed structure or a hexagonal shaft structure.

[0026] Further improvements, such as Figure 1 As shown: the interior of the upper fixed support 2 and the lower fixed support 5 are both provided with grooves matching the upper spring 3 and the lower spring 4. This arrangement can ensure that the springs can be accurately positioned during installation, avoiding the springs from being offset or misplaced during use, thereby ensuring the buffering effect of the springs.

[0027] Further improvements, such as Figure 1 As shown: the upper and lower ends of the outer tube 7 are provided with grooves matching the upper spring 3 column and the lower spring 4. The grooves matching the springs are provided at the upper and lower ends of the outer tube 7, which can further limit the sliding range of the inner tube 8 in the outer tube 7, ensuring that the inner tube 8 can be buffered within a predetermined range when impacted.

[0028] Further improved, the operation method of the power head device of the above-water ultra-deep mixing pile machine comprises the following steps:

[0029] Step 1: Turn on the power system 6, which transmits power to the driving gear 11 in the gear box 9 through the transmission shaft, and the driving gear 11 transmits power to the driven gear 12 through gear engagement;

[0030] Step 2: The driven gear 12 transmits power to the outer tube 7, so that the outer tube 7 can rotate; the outer tube 7 transmits power to the inner tube 8 through the spline, so that the inner tube 8 rotates;

[0031] Step 3: An upper bearing system 10 and a lower bearing system 13 are arranged between the inner tube 8 and the gear box 9, so that the gear box 9 is not affected by the rotation of the inner tube 8 and remains relatively stationary;

[0032] Step 4: The lower end of the inner tube 8 is connected to the drill rod and the drill bit 14 by a flange, and when the inner tube 8 rotates, the drill rod and the drill bit 14 are driven to rotate simultaneously;

[0033] Step 5: The upper end of the inner tube 8 is connected to the slurry supply system 1, and the slurry supply system 1 transports the slurry to the end of the drill rod and the drill bit 14 through the hollow part of the inner tube 8 and sprays it into the soil layer. The drill rod and the drill bit 14 rotate and cut and stir the soil while moving upward and downward, driving the power head gear box 9 to move upward and downward together, and mix the slurry provided by the slurry supply system 1 with the soil to evenly strengthen the foundation;

[0034] Step 6: When the sea waves are large and the ship shakes violently, the drill rod and drill bit 14 of the pile mixing machine will rise and fall with the rise and fall of the ship; when the ship falls from the crest of the wave, the drill rod and drill bit 14 cannot continue to fall after touching the bottom, and the power head gear box 9 will continue to move downward. At this time, the splines of the outer tube 7 connected to the gear box 9 will move downward along the splines of the inner tube 8, and the lower spring 4 at the lower end of the inner tube 8 will buffer the downward movement of the outer tube 7, thereby protecting the gear box 9, the drill rod and the drill bit 14 from damage; when the ship is thrown up from the wave valley, the drill rod and the drill bit 14 still stay in the soil layer, and the power head gear box 9 will move upward with the ship. At this time, the splines of the outer tube 7 connected to the gear box 9 will move upward along the splines of the inner tube 8, and the upper spring 3 at the lower end of the inner tube 8 will buffer the upward movement of the outer tube 7, thereby protecting the gear box 9 from damage.

[0035] Working principle: The power system 6 transmits power to the driving gear 11 in the gear box 9 through the transmission shaft. The driving gear 11 in the gear box 9 transmits power to the driven gear 12 through gear engagement. The driven gear 12 and the outer tube 7 are connected by splines to realize the rotation of the outer tube 7. Splines are arranged between the outer tube 7 and the inner tube 8. The outer splines of the inner tube 8 and the inner splines of the outer tube 7 are engaged with each other, so that the outer tube 7 drives the inner tube 8 to rotate. At the same time, the outer splines of the inner tube 8 can slide up and down along the inner splines of the outer tube 7. The inner tube 8 Springs and spring supports are provided at the upper and lower ends to constrain the inner tube 8 to slide up and down within a certain range and slide slowly, so as to effectively absorb and buffer the energy wave impact of surge waves; the lower end of the inner tube 8 is connected to the drill rod through a flange, and the movement of the inner tube 8 drives the drill rod to rotate and move up and down; the lower end of the drill rod is rigidly connected to the drill bit, and the movement of the drill rod drives the drill bit to rotate and move up and down, and the upper end of the inner tube 8 is connected to the slurry supply system 1, which transports the slurry to the end of the drill bit through the hollow part of the inner tube 8, and sprays it into the soil layer under a certain pressure.

[0036] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0037] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A power head device for an ultra-deep water mixing pile driver, characterized in that: include: A slurry supply system (1), wherein an inner tube (8) is provided at a pipeline connection end of the slurry supply system (1), and a drill rod and a drill bit (14) are provided at the lower part of the inner tube (8), the inner tube (8) is fixedly connected to the drill rod and the drill bit (14) via a flange, an outer tube (7) is provided outside the inner tube (8), and a driven gear (12) is provided on the surface of the outer tube (7), a gear box (9) is provided on the side of the outer tube (7), and a power system (6) is provided on the upper part of the gear box (9), and a transmission shaft of the power system (6) extends to the inside of the gear box (9) A driving gear (11) is installed, and the driving gear (11) and the driven gear (12) are meshed with each other. An upper bearing system (10) and a lower bearing system (13) are arranged between the inner tube (8) and the gear box (9). An upper fixed support (2) and a lower fixed support (5) are arranged at the upper and lower ends of the inner tube (8), respectively. A lower spring (4) is arranged at the upper part of the lower fixed support (5) and an upper spring (3) is arranged at the lower part of the upper fixed support (2). Both the upper spring (3) and the lower spring (4) are connected to the outer tube (7).

2. The power head device of the super-deep pile mixing machine on water according to claim 1, characterized in that: Splines are arranged between the outer tube (7) and the inner tube (8), and the outer splines of the inner tube (8) and the inner splines of the outer tube (7) are engaged with each other.

3. The power head device of the super-deep aquatic pile mixing machine according to claim 1 is characterized by: The upper fixed support (2) and the lower fixed support (5) are both provided with grooves inside thereof, which match the upper spring (3) and the lower spring (4).

4. The power head device of the super-deep pile mixing machine on water according to claim 1, characterized in that: The upper and lower ends of the outer tube (7) are both provided with grooves matching the upper spring (3) column and the lower spring (4).

5. The method for operating the power head device of an underwater ultra-deep mixing pile driver according to claim 1, characterized in that: The operation method of the power head device of the above-water ultra-deep mixing pile machine comprises the following steps: Step 1: Turn on the power system, which transmits power to the driving gear in the gearbox through the transmission shaft, and the driving gear transmits power to the driven gear through gear meshing; Step 2: The driven gear transmits power to the outer tube, so that the outer tube can rotate; the outer tube transmits power to the inner tube through the spline, so that the inner tube rotates; Step 3: An upper bearing system and a lower bearing system are arranged between the inner tube and the gear box, so that the gear box is not affected by the rotation of the inner tube and remains relatively stationary; Step 4: The lower end of the inner tube is connected to the drill rod and the drill bit by a flange, and when the inner tube rotates, the drill rod and the drill bit are driven to rotate simultaneously; Step 5: The upper end of the inner tube is connected to the slurry supply system. The slurry supply system transports the slurry to the end of the drill rod and the drill bit through the hollow part of the inner tube and sprays it into the soil layer. The drill rod and the drill bit rotate and cut and stir the soil while moving upward and downward, driving the gear box of the power head to move upward and downward together, and mix the slurry provided by the slurry supply system with the soil to evenly strengthen the foundation; Step 6: When the sea waves are strong and the ship shakes violently, the drill rod and drill bit of the pile mixer will rise and fall with the rise and fall of the ship; when the ship falls from the crest of the wave, the drill rod and drill bit cannot continue to fall after touching the bottom, and the gear box of the power head will continue to move downward. At this time, the outer tube spline connected to the gear box will move downward along the inner tube spline, and the lower spring at the lower end of the inner tube will buffer the downward movement of the outer tube, thereby protecting the gear box, drill rod and drill bit from damage; when the ship is thrown up from the wave valley, the drill rod and drill bit still remain in the soil layer, and the gear box of the power head will move upward with the ship. At this time, the outer tube spline connected to the gear box will move upward along the inner tube spline, and the upper spring at the lower end of the inner tube will buffer the upward movement of the outer tube, thereby protecting the gear box from damage.

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