CN110984847A - Power head device, power head system and control method - Google Patents

Abstract

The invention provides a power head device, a system and a control method, comprising the following steps: the portable basket comprises a basket outer frame, a push-pull assembly, a power head assembly and a connecting assembly, wherein one end of the push-pull assembly is connected with the top of the basket outer frame, the other end of the push-pull assembly is connected with the power head assembly, the power head assembly comprises a power head main body arranged inside the basket outer frame and a power head drill bit extending from the bottom of the basket outer frame, two sides of the power head main body are connected with the inner wall of the basket outer frame in a sliding mode to achieve lifting in the basket outer frame, and the connecting assembly is arranged on the outer walls of two sides of the basket outer frame and used for being connected with a locking structure on a truss. The feeding force provided by the invention is sufficient and stable, the drilling is convenient and fast, and the construction efficiency is high.

Description

Power head device, power head system and control method

Technical Field

The invention relates to the technical field of building construction, in particular to a power head device, a power head system and a control method.

Background

The high-pressure rotary jet grouting is a process of lifting a jet rod with a nozzle at the bottom after the jet rod is delivered to the deep underground, pumping high-energy fluid and cement slurry, and forming isolated cylindrical cement-soil concretions or cylindrical cement-soil concretions with certain regular arrangement underground. In order to reduce cost and improve efficiency, in recent years, a self-drilling mode is adopted in a link of how to convey a spray rod to the underground.

At present, the self-pore-forming mode of high-pressure jet grouting comprises three modes of gravity pressurization, oil cylinder chain pressurization and full chain pressurization.

The gravity pressurizing mode is that the self-weight pressure of the power head is utilized to drill downwards, and when the power head meets a hard stratum, the spray rod sinks slowly or is difficult to sink continuously at all; the oil cylinder chain mode is that a piston rod of an oil cylinder stretches to drive a chain to move up and down, the chain pulls a power head and an injection rod to drill or lift downwards, the lifting or sinking force is large, but due to the reciprocating of the oil cylinder, the time wasted by locking and loosening of a chuck is more, the construction efficiency is reduced, and even when a soft soil layer is encountered, the efficiency is far lower than that of the gravity pressurization mode; the full-chain pressurizing mode is that the chain is driven by the motor chain wheel to ascend and descend, the spraying rod does not need to be frequently reciprocated up and down and locked and loosened, but the transmission speed of the chain is slow, the feeding force is not too large, and the process that the motor stops and then starts reversely is needed to be executed when the upward or downward direction of the chain is changed, so that the speed is slow.

Disclosure of Invention

An embodiment of the invention provides a power head device, a power head system and a control method, which are used for solving the problems of insufficient feeding force and low construction efficiency of a drill bit in a normal self-drilling mode.

In a first aspect of the embodiments of the present invention, a power head device is provided, including a basket outer frame, a push-pull assembly, a power head assembly and a connecting assembly, where one end of the push-pull assembly is connected to a top of the basket outer frame, and the other end of the push-pull assembly is connected to the power head assembly, the power head assembly includes a power head main body disposed inside the basket outer frame and a power head drill bit extending out of a bottom of the basket outer frame, two sides of the power head main body are slidably connected to an inner wall of the basket outer frame to achieve lifting of the power head main body in the basket outer frame, and the connecting assembly is disposed on an outer wall of the basket outer frame and is connected to a truss to achieve relative movement or a locking state of the basket outer frame and the truss.

Further, the both sides of unit head main part are equipped with first fitting piece respectively, be equipped with on the hand-basket frame inner wall with the second fitting piece of first fitting piece looks adaptation, through first fitting piece with the second fitting piece is realized the unit head main part with the sliding connection of hand-basket frame.

Furthermore, the connecting assembly comprises a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are oppositely arranged on the outer wall of the outer frame of the basket, and the first connecting piece and the second connecting piece are both arranged in parallel with the outer wall;

the first connecting piece comprises a first outer roller and a first telescopic piece, the second connecting piece comprises a second outer roller and a second telescopic piece, and the truss is provided with a first slide way matched with the first connecting piece and a second slide way matched with the second connecting piece.

Further, the powerhead apparatus includes a first state and a second state; in the first state, the first connecting piece is abutted against the first slideway, and the second connecting piece is abutted against the second slideway, so that the outer frame of the lifting basket and the truss are in a locking state; in the second state, the first connecting piece is separated from the first slideway, and the second connecting piece is separated from the second slideway, so that the first outer roller and the first slideway slide relatively, and the second outer roller and the second slideway slide relatively.

Furthermore, the first connecting piece also comprises a first upper cylinder body and a first lower cylinder body, and a first upper connecting rod is arranged on the first upper cylinder body; one end of the first upper connecting rod is arranged in the first upper cylinder body, and the other end of the first upper connecting rod is connected with the upper end of the first telescopic piece; the first lower cylinder body is provided with a first lower connecting rod; one end of the first lower connecting rod is arranged in the first lower cylinder body, and the other end of the first lower connecting rod is connected with the lower end of the first telescopic piece;

the second connecting piece also comprises a second upper cylinder body and a second lower cylinder body, and a second upper connecting rod is arranged on the second upper cylinder body; one end of the second upper connecting rod is arranged in the second upper cylinder body, and the other end of the second upper connecting rod is connected with the upper end of the second telescopic piece; a second lower connecting rod is arranged on the second lower cylinder body; one end of the second lower connecting rod is arranged in the second lower cylinder body, and the other end of the second lower connecting rod is connected with the lower end of the second telescopic piece.

Furthermore, the connecting assembly further comprises a first driving cylinder and a second driving cylinder, and a first left connecting rod and a first right connecting rod are arranged on the first driving cylinder; one end of the first left connecting rod is arranged in the first driving cylinder, and the other end of the first left connecting rod is connected with the upper end of the first telescopic piece; one end of the first right connecting rod is arranged in the first driving cylinder, and the other end of the first right connecting rod is connected with the upper end of the second telescopic piece;

a second left connecting rod and a second right connecting rod are arranged on the second driving cylinder; one end of the second left connecting rod is arranged in the second driving cylinder, and the other end of the second left connecting rod is connected with the lower end of the second telescopic piece; one end of the second right connecting rod is arranged in the second driving cylinder, and the other end of the second right connecting rod is connected with the lower end of the second telescopic piece.

Furthermore, the push-pull assembly is a telescopic oil cylinder, the telescopic oil cylinder comprises a second support rod and a second cylinder body, one end of the second support rod is arranged in the second cylinder body, the other end of the second support rod is fixedly connected with the frame top of the basket outer frame, and the second cylinder body is fixedly connected with the top of the power head assembly.

Furthermore, the push-pull assembly comprises a plurality of telescopic oil cylinders, and the plurality of telescopic oil cylinders are arranged between the top of the basket outer frame and the top of the power head assembly at intervals.

Further, the basket outer frame comprises an outer frame main body, the outer frame main body is a hollow steel structure frame, and an upper pulley is arranged at the top of the outer frame main body.

In a second aspect of the embodiments of the present invention, a power head system is provided, which includes a truss and the above power head apparatus.

In a third aspect of the embodiments of the present invention, a method for controlling the power head device is provided, where the method includes:

controlling the power head device to enter a first working mode, or controlling the power head device to enter a second working mode;

in the first working mode, the lifting basket outer frame and the truss are in a locking state, and the power head device realizes drilling through self gravity;

the second working mode comprises a first stage and a second stage, and in the second working mode, the power head device circularly executes the first stage and the second stage so as to realize drilling;

in the first stage, the basket outer frame and the truss are in a locked state, and the push-pull assembly applies thrust to enable the top of the basket outer frame and the power head assembly to be away from each other so as to enable the power head assembly to drill;

in the second stage, the basket outer frame and the truss are in a relative movement state, and the push-pull assembly applies pulling force to enable the top of the basket outer frame and the power head assembly to be close to each other, so that the basket outer frame follows downwards.

The power head device, the power head system and the control method provided by the embodiment of the invention comprise a basket outer frame, a push-pull assembly, a power head assembly and a connecting assembly, wherein one end of the push-pull assembly is connected with the top of the basket outer frame, the other end of the push-pull assembly is connected with the power head assembly, the power head assembly comprises a power head main body arranged in the basket outer frame and a power head drill bit extending out of the bottom of the basket outer frame, two sides of the power head main body are connected with the inner wall of the basket outer frame in a sliding mode so as to achieve lifting of the power head main body in the basket outer frame, and the connecting assembly is arranged on the outer wall of the basket outer frame and used for being connected with a truss so as to achieve relative movement or locking state of the basket outer frame and the.

When construction needs, the connecting assembly locks and fixes the outer frame of the basket on the truss, and the push-pull assembly applies thrust to the power head assembly so as to provide sufficient feeding force. When the power head assembly meets soft ground, the connecting assembly releases the locking of the outer frame of the basket, the push-pull assembly does not apply thrust any more, and the power head assembly realizes feeding by means of self gravity. The feeding force provided by the invention is sufficient and stable, the drilling is convenient and fast, the applicable scene is flexible, and the construction efficiency is greatly improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a power head device according to an embodiment of the present invention;

FIG. 2 is a schematic side view of a powerhead apparatus according to an embodiment of the present invention;

fig. 3 is a top view structural diagram of a power head device according to an embodiment of the present invention;

FIG. 4 is a stratigraphic column provided in accordance with an embodiment of the present invention;

wherein, in the figures, the respective reference numerals:

10-a basket outer frame;

20-a power head assembly; 21-a main box body; 22-a flow director; 23-an electric motor; 24-a power head drill bit;

30-a push-pull assembly; 31-a second cylinder; 32-a second brace bar;

40-a connecting assembly; 41-a first outer roller; 42-a first telescoping member; 43-a second outer roller; 44-a second telescoping member; 45-a first drive cylinder; 451-first left link; 452-a first right link; 461-second left connecting rod; 462-a second right link;

50-inner rollers;

60-truss; 61-a first slide; 62-second slide.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1, an embodiment of the present invention provides a power head device, including a basket outer frame 10, a power head assembly 20, a push-pull assembly 30, and a connection assembly 40, wherein one end of the push-pull assembly 30 is connected to a top of the basket outer frame 10, the other end of the push-pull assembly 30 is connected to the power head assembly 20, the power head assembly 20 includes a power head main body disposed inside the basket outer frame and a power head drill 24 extending out of a bottom of the basket outer frame, two sides of the power head main body are slidably connected to an inner wall of the basket outer frame 10 to achieve lifting of the power head main body inside the basket outer frame 10, and the connection assembly is disposed on an outer wall of the basket outer frame and is used for being connected to a truss 60 to achieve relative movement or a locking state of the.

In one embodiment, referring to fig. 4, when the power head device drills into the underground, when it encounters a hard soil layer, the power head cannot smoothly feed by the gravity of the power head itself, at this time, the connecting assembly starts to operate, the connecting assembly locks and fixes the basket outer frame 10 on the truss 60, so that the components including the basket outer frame 10 and the power head component 20 are fixed, and then the push-pull component 30 starts to operate, and pushes the power head drill bit 24 and the spray rod downward, thereby achieving the purpose of pressurized drilling. When the soft ground is met, the connecting assembly releases the locking of the basket outer frame 10, the push-pull assembly 30 does not apply thrust any more, and the power head assembly 20 realizes feeding by means of self gravity.

In one embodiment, the powerhead body includes a main body case 21, a deflector 22, and a housing that houses both, all disposed within the interior of the basket housing 10.

In the embodiment, on the basis of the conventional gravity-pressurized self-hole-forming drilling power head device, a hydraulic pressure pressurizing drilling function is added, the feeding force is sufficient and stable, and the drilling mode of the power head device can be switched according to the drilling geological condition, so that the self-hole-forming drilling efficiency can be greatly improved, and the application range of self-hole-forming construction of a drilling machine is expanded.

In one embodiment, the two sides of the power head main body are respectively provided with a first fitting piece, the inner wall of the basket outer frame is provided with a second fitting piece matched with the first fitting piece, and the sliding connection between the power head main body and the basket outer frame is realized through the first fitting piece and the second fitting piece. The power head comprises a power head main body, a power head outer frame and a power head, wherein a first matching piece is arranged on one side of the power head main body, a second matching piece is arranged on the other side of the power head main body, the position of the inner wall of the outer frame of the basket corresponds to the position of the first matching piece, and the second matching piece is matched with the first matching piece. Optionally, the first matching piece is an inner roller, and the second matching piece is a sliding groove; or the first matching piece is a sliding groove, and the second matching piece is an inner roller.

Preferably, as shown in fig. 1, inner rollers 50 are respectively disposed on two sides of the power head main body, and a sliding groove adapted to the inner rollers 50 is disposed on an inner wall of the basket outer frame 10. Alternatively, the number of internal rollers 50 on each side of the housing of the powerhead body may be 4, 5, 6, 8, 10, etc. In the embodiment, the number of the inner rollers 50 on each side is preferably 8, the inner rollers 50 are symmetrically arranged on two sides of the outer frame of the power head main body, and the inner rollers 50 move along the sliding grooves in the operation process of the push-pull assembly 30. Through setting up interior gyro wheel 50 and spout, can not only play a spacing effect to the unit head main part, prevent that the skew from appearing in unit head subassembly 20 position, also can reduce the wearing and tearing of each subassembly in the working process.

In one embodiment, as shown in fig. 2 and 3, the connection assembly includes a first connection member and a second connection member, the first connection member and the second connection member are oppositely disposed on an outer wall of the outer frame of the basket, and both the first connection member and the second connection member are disposed in parallel with the outer wall.

Specifically, the first connecting piece and the second connecting piece are arranged on the left side and the right side of the outer wall of the outer frame of the basket respectively and are arranged oppositely. The first connecting piece and the second connecting piece are arranged in parallel with the outer wall, and the orientation directions of the first connecting piece and the second connecting piece are parallel to the outer wall.

As shown in fig. 2, the first link includes a first outer roller 41 and a first telescopic member 42, and the second link includes a second outer roller 43 and a second telescopic member 44. As shown in fig. 3, a first slideway 61 adapted to the first connecting member and a second slideway 62 adapted to the second connecting member are provided on the truss.

Optionally, the number of the first outer rollers is 2, and each set of the first outer rollers is respectively located at the upper side and the lower side of the first telescopic member. The second outer rollers are 2 groups, and each group of the second outer rollers is respectively positioned at the upper side and the lower side of the first telescopic piece. The number of the outer rollers in each group can be 1, 2 or 3, and the like.

In this embodiment, the first connecting piece and the second connecting piece are oppositely arranged on the outer wall of the basket outer frame, the first connecting piece comprises the first outer roller and the first telescopic piece, the second connecting piece comprises the second outer roller and the second telescopic piece, and the telescopic piece, the outer roller and the sliding ways (the first sliding way and the second sliding way) on the truss are matched with each other, so that the relative movement or the locking state of the basket outer frame and the truss can be well realized.

In one embodiment, the powerhead apparatus includes a first state and a second state; in the first state, the first connecting piece is abutted against the first slideway, and the second connecting piece is abutted against the second slideway, so that the outer frame of the lifting basket and the truss are in a locking state. In this state, the power head device achieves a hydraulic pressure drilling function.

In the second state, the first connecting piece is separated from the first slideway, and the second connecting piece is separated from the second slideway, so that the first outer roller and the first slideway slide relatively, and the second outer roller and the second slideway slide relatively. In this state, the power head device realizes the gravity pressurized drilling function.

In one embodiment, as shown in fig. 3, the first connecting member further includes a first upper cylinder and a first lower cylinder, and the first upper cylinder is provided with a first upper connecting rod; one end of the first upper connecting rod is arranged in the first upper cylinder body, and the other end of the first upper connecting rod is connected with the upper end of the first telescopic piece; the first lower cylinder body is provided with a first lower connecting rod, one end of the first lower connecting rod is arranged in the first lower cylinder body, and the other end of the first lower connecting rod is connected with the lower end of the first telescopic piece.

The first upper cylinder body and the first lower cylinder body can be fixed on the outer wall of the outer frame of the lifting basket through connecting pieces.

The second connecting piece also comprises a second upper cylinder body and a second lower cylinder body, and a second upper connecting rod is arranged on the second upper cylinder body; one end of the second upper connecting rod is arranged in the second upper cylinder body, and the other end of the second upper connecting rod is connected with the upper end of the second telescopic piece; and a second lower connecting rod is arranged on the second lower cylinder body, one end of the second lower connecting rod is arranged in the second lower cylinder body, and the other end of the second lower connecting rod is connected with the lower end of the second telescopic piece.

The second upper cylinder body and the second lower cylinder body can be fixed on the outer wall of the outer frame of the basket through connecting pieces.

It can be understood that the first upper cylinder and the second upper cylinder may be respectively located at two sides of the outer wall of the outer frame of the basket and symmetrically arranged. The first lower cylinder body and the second lower cylinder body can be respectively positioned on two sides of the outer wall of the basket outer frame and are symmetrically arranged. Further, the first upper cylinder body and the second upper cylinder body are located on the upper side of the outer wall of the basket outer frame, and the first lower cylinder body and the second lower cylinder body are located on the lower side of the outer wall of the basket outer frame.

In this embodiment, first connecting piece and second connecting piece drive through different cylinder bodies respectively to the nimble control to the unit head device has been realized better.

In one embodiment, as shown in fig. 2, the connecting assembly further comprises a first driving cylinder 45 and a second driving cylinder 46, and the first driving cylinder 45 is provided with a first left connecting rod 451 and a first right connecting rod 452. One end of the first left connecting rod is arranged in the first driving cylinder 45, and the other end of the first left connecting rod is connected with the upper end of the first telescopic piece. One end of the first right connecting rod is arranged in the first driving cylinder 45, and the other end of the first right connecting rod is connected with the upper end of the second telescopic piece.

The second drive cylinder 46 is provided with a second left link 461 and a second right link 462. One end of the second left link is disposed within the second drive cylinder 46 and the other end of the second left link is connected to the lower end of the second telescoping member. One end of the second right link is disposed within the second drive cylinder 46 and the other end of the second right link is connected to the lower end of the second telescoping member.

The first and second driving cylinders 45 and 46 may be fixed to the outer wall of the basket outer frame by means of a connector, respectively. The first driving cylinder 45 drives the first left connecting rod and the first right connecting rod to extend or contract, and the second driving cylinder 46 drives the second left connecting rod and the second right connecting rod to extend or contract so as to drive the first telescopic piece and the second telescopic piece to extend or contract, thereby realizing the locking state or the relative movement state of the outer frame of the basket and the truss.

Specifically, a first driving cylinder 45 and a second driving cylinder 46 are provided on the upper and lower sides, respectively, on the outer wall of the basket outer frame. The first drive cylinder 45 drives the first left and right links with a lateral degree of freedom, and the second drive cylinder 46 drives the second left and right links with a lateral degree of freedom.

In this embodiment, the unified first driving cylinder 45 and the second driving cylinder 46 are used to control the extension or contraction of the first telescopic member and the second telescopic member together, so as to realize more accurate and effective control, and better ensure the smooth operation of the power head device.

In one embodiment, as shown in fig. 1, the push-pull assembly is a telescopic cylinder, the telescopic cylinder includes a second supporting rod 31 and a second cylinder 32, one end of the second supporting rod is disposed in the second cylinder, the other end of the second supporting rod is fixedly connected to the top of the basket outer frame, and the second cylinder is fixedly connected to the top of the power head assembly. Preferably, the push-pull assembly comprises a plurality of telescopic oil cylinders, and the plurality of telescopic oil cylinders are arranged between the top of the basket outer frame and the top of the power head assembly at intervals.

Specifically, when the power head device enters a hard soil layer from a soft stratum, the connecting assembly 40 completes locking of the basket outer frame 10, and the second cylinder 32 pushes the power head downwards. The number of the telescopic cylinders can be 1, 2 or more, and in the embodiment, the number of the telescopic cylinders is preferably 2. Therefore, the feeding force of the power head can be ensured to be large enough, and the power is not excessive.

In this embodiment, the interaction between the basket outer frame and the power head assembly is realized through the telescopic cylinder, and when the second support rod of the telescopic cylinder extends or contracts, the power head assembly can move downwards and upwards along the inner slide way of the basket outer frame under the pushing of the telescopic cylinder, so as to drive the power head drill bit 24 to realize drilling.

Preferably, the length of the slide way of the truss 60 is greater than the telescopic length of the telescopic cylinder. The telescopic oil cylinder pushes the power head to move downwards, and in the process, the pressure intensity in the second cylinder body 32 is far larger than the outside, so that the length of the slide way is enough to ensure the normal work of the second cylinder body 32, and the normal movement of the power head is ensured.

Preferably, the basket outer frame 10 includes an outer frame main body, the outer frame main body is a hollow steel structure frame, and the top of the outer frame main body is provided with an upper pulley.

In one embodiment, a proper space is left inside the outer frame of the basket, and the space can ensure that the moving amplitude of the power head in the space reaches 0.8 m. The upper pulley is a movable pulley, one end of a steel wire rope penetrating through the upper pulley is tied to the top of the high-spraying trolley, the other end of the steel wire rope is connected with the winch, the outer frame of the basket is controlled to move up and down on the high-spraying trolley through the winch, and the steel wire rope can be quickly switched to a low-speed state during sprinkling irrigation operation.

Preferably, as shown in FIG. 1, the powerhead assembly 20 further includes a main housing 21, a fluid director 22 and a motor 23, which form a power unit that can provide rotation to the high pressure spray wand, wherein the motor 23 is electrically connected to the high pressure spray wand.

In one embodiment, the invention further provides a power head system, which comprises a truss and the power head device in any one of the embodiments.

In an embodiment, the present invention further provides a control method of the power head apparatus described in the above embodiment, including:

and controlling the power head device to enter a first working mode, or controlling the power head device to enter a second working mode.

In the first working mode, the basket outer frame and the truss are in a locking state, and the power head device realizes drilling through self gravity.

The second working mode comprises a first stage and a second stage, and in the second working mode, the power head device circularly executes the first stage and the second stage so as to realize drilling;

in the first stage, the basket outer frame and the truss are in a locking state, and the push-pull assembly applies thrust to enable the top of the basket outer frame and the power head assembly to be away from each other, so that the power head assembly can drill.

In the second stage, the basket outer frame and the truss are in a relative movement state, and the push-pull assembly applies pulling force to enable the top of the basket outer frame and the power head assembly to be close to each other, so that the basket outer frame follows downwards.

In this embodiment, when the power head device is used, the first working mode or the second working mode may be selected according to the needs of an actual scene to perform work, and further, the work may be performed by switching the first working mode and the second working mode in real time. The control method of the power head device can be ensured to be more flexible, and the power head device can adapt to various different application scenes.

In one embodiment, fig. 4 is a schematic diagram of an example of a stratum, and the working principle of the power head device of the present invention is illustrated by describing how to drill and spray the self-formed hole in the example case, and the power head device is divided into three stages, i.e., an upper soft layer drilling stage, a middle hard layer drilling stage and a lower soft layer drilling stage according to the soft and hard condition of the stratum, and then the power head device is lifted upwards for four links.

A first link: namely, the upper soft layer is drilled by self-pore-forming, which means the position of the soil filling and silt layer with the depth of 0-10 m, and at the moment, the power head device can adopt a first working mode, namely a non-pressurizing mode drilling mode. Specifically, the basket outer frame and the truss are kept in a locked state, and the rod rapidly sinks to a predetermined 10-meter depth position under the pressure of the weight of the basket outer frame, the power head assembly and the power head drill.

A second ring section: namely, the middle harder layer drills by self-pore-forming, which means the position of a 10-15 m deep silty clay layer, and at the moment, a second working mode can be adopted, and the pressurizing mode is started for drilling. The first stage is as follows: the first connecting piece is abutted against the first slideway, and the second connecting piece is abutted against the second slideway, so that the outer frame of the lifting basket and the truss are in a locking state. And when the hydraulic button is started, the telescopic oil cylinder works, the second support rod is ejected outwards to react on a downward feeding force of the power head assembly, and the power head assembly drives the spray rod to pressurize downwards for drilling. And a second stage: the oil path of the telescopic oil cylinder is pressed in the opposite direction, and the second support rod of the telescopic oil cylinder is contracted. And the first connecting piece is separated from the first slideway, and the second connecting piece is separated from the second slideway and contacts with the locking state of the outer frame of the lifting basket and the truss. Therefore, the second support rod of the telescopic oil cylinder is contracted, the power head assembly is not moved, but the outer frame of the basket follows downwards, the first stage and the second stage are circularly carried out, and the second wheel is pressurized until the second wheel penetrates through the hard plastic powder clay layer.

And a third link: namely self-pore-forming drilling of a lower weak layer, namely drilling of a loose sand layer below 15 meters in a non-pressurizing mode. And executing a first working mode with the first link, keeping the outer frame of the basket and the truss in a locking state, and drilling by self-gravity downward self-forming holes.

The fourth ring section: the spraying depth is 0 meter from the hole bottom, the outer frame of the basket and the truss are kept in a locking state, and the outer frame of the basket and the power head are lifted up slowly under the lifting of the steel wire rope.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A powerhead apparatus, comprising: the power head assembly comprises a power head main body arranged inside the basket outer frame and a power head drill bit extending from the bottom of the basket outer frame, the two sides of the power head main body are connected with the inner wall of the basket outer frame in a sliding mode to achieve lifting in the basket outer frame, and the connecting assembly is arranged on the outer wall of the basket outer frame and used for being connected with a truss to achieve relative movement or locking state of the basket outer frame and the truss.

2. The power head device according to claim 1, wherein first mating members are respectively provided on both sides of the power head body, and second mating members adapted to the first mating members are provided on an inner wall of the basket housing, so that the power head body and the basket housing are slidably connected through the first and second mating members.

3. The powerhead apparatus of claim 1, wherein the coupling assembly comprises a first coupling member and a second coupling member, the first coupling member and the second coupling member being disposed opposite one another on an outer wall of the basket housing, and both the first coupling member and the second coupling member being disposed parallel to the outer wall;

the first connecting piece comprises a first outer roller and a first telescopic piece, the second connecting piece comprises a second outer roller and a second telescopic piece, and the truss is provided with a first slide way matched with the first connecting piece and a second slide way matched with the second connecting piece.

4. The powerhead apparatus of claim 3, wherein the powerhead apparatus comprises a first state and a second state; in the first state, the first connecting piece is abutted against the first slideway, and the second connecting piece is abutted against the second slideway, so that the outer frame of the lifting basket and the truss are in a locking state; in the second state, the first connecting piece is separated from the first slideway, and the second connecting piece is separated from the second slideway, so that the first outer roller and the first slideway slide relatively, and the second outer roller and the second slideway slide relatively.

5. The powerhead apparatus of claim 3, wherein the first linkage further comprises a first upper cylinder having a first upper linkage disposed thereon; one end of the first upper connecting rod is arranged in the first upper cylinder body, and the other end of the first upper connecting rod is connected with the upper end of the first telescopic piece; the first lower cylinder body is provided with a first lower connecting rod; one end of the first lower connecting rod is arranged in the first lower cylinder body, and the other end of the first lower connecting rod is connected with the lower end of the first telescopic piece;

the second connecting piece also comprises a second upper cylinder body and a second lower cylinder body, and a second upper connecting rod is arranged on the second upper cylinder body; one end of the second upper connecting rod is arranged in the second upper cylinder body, and the other end of the second upper connecting rod is connected with the upper end of the second telescopic piece; a second lower connecting rod is arranged on the second lower cylinder body; one end of the second lower connecting rod is arranged in the second lower cylinder body, and the other end of the second lower connecting rod is connected with the lower end of the second telescopic piece.

6. The powerhead apparatus of claim 3, wherein the linkage assembly further comprises a first drive cylinder and a second drive cylinder, the first drive cylinder having a first left linkage and a first right linkage disposed thereon; one end of the first left connecting rod is arranged in the first driving cylinder, and the other end of the first left connecting rod is connected with the upper end of the first telescopic piece; one end of the first right connecting rod is arranged in the first driving cylinder, and the other end of the first right connecting rod is connected with the upper end of the second telescopic piece;

a second left connecting rod and a second right connecting rod are arranged on the second driving cylinder; one end of the second left connecting rod is arranged in the second driving cylinder, and the other end of the second left connecting rod is connected with the lower end of the second telescopic piece; one end of the second right connecting rod is arranged in the second driving cylinder, and the other end of the second right connecting rod is connected with the lower end of the second telescopic piece.

7. The powerhead apparatus of claim 1, wherein the push-pull assembly is a telescoping cylinder, the telescoping cylinder comprises a second strut and a second cylinder body, one end of the second strut is disposed in the second cylinder body, the other end of the second strut is fixedly connected to a top of the basket housing, and the second cylinder body is fixedly connected to a top of the powerhead assembly.

8. The powerhead apparatus of claim 7, wherein the push-pull assembly comprises a plurality of telescoping cylinders spaced between a top of the basket housing and a top of the powerhead assembly.

9. A powerhead system comprising a truss and a powerhead apparatus according to any of claims 1 to 9.

10. A method of controlling a powerhead apparatus according to any of claims 1 to 8, comprising:

controlling the power head device to enter a first working mode, or controlling the power head device to enter a second working mode;

in the first working mode, the lifting basket outer frame and the truss are in a locking state, and the power head device realizes drilling through self gravity;

the second working mode comprises a first stage and a second stage, and in the second working mode, the power head device circularly executes the first stage and the second stage so as to realize drilling;

in the first stage, the basket outer frame and the truss are in a locked state, and the push-pull assembly applies thrust to enable the top of the basket outer frame and the power head assembly to be away from each other so as to enable the power head assembly to drill;

in the second stage, the basket outer frame and the truss are in a relative movement state, and the push-pull assembly applies pulling force to enable the top of the basket outer frame and the power head assembly to be close to each other, so that the basket outer frame follows downwards.

Images