CN211973629U - Rapid crushing tool for steel pipe pile encountering boulder - Google Patents
Rapid crushing tool for steel pipe pile encountering boulder Download PDFInfo
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- CN211973629U CN211973629U CN201922213744.2U CN201922213744U CN211973629U CN 211973629 U CN211973629 U CN 211973629U CN 201922213744 U CN201922213744 U CN 201922213744U CN 211973629 U CN211973629 U CN 211973629U
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Abstract
The utility model provides a steel pipe pile rapid crushing tool when encountering boulders, which comprises a motor, a drill bit assembly and a fixing mechanism for providing recoil for the motor during the operation of a drill bit; the drill bit assembly includes: the drill bit is axially provided with a blind hole, the second air bag is arranged in the inner cavity of the blind hole, and the second air inlet pipe is used for inflating the second air bag; the peripheral wall of the drill bit is provided with a plurality of openings, the openings are communicated with the blind holes, the second air bag is inflated through a second air inlet pipe and then expands outwards from each opening, and an expansion air bag cavity is formed at each opening by the second air bag; the motor is connected with the drill bit, and the fixing mechanism is connected with the motor or the drill bit. The utility model discloses when the drill bit enters into the boulder certain depth, aerify for the second intake pipe, the second gasbag passes through the opening and toward the external inflation, forms a plurality of inflation gasbag chambeies, and a plurality of inflation gasbag chambeies collapse external hard rock and open to effectual hard rock breaks into effectual small-size stone.
Description
Technical Field
The utility model relates to a steel-pipe pile construction field especially relates to a steel-pipe pile meets quick crushing instrument of boulder.
Background
A traditional steel pipe pile meets boulders, and the construction method comprises the following steps:
1. typically a rotary drill is used. The application range of the rotary drilling machine is as follows: the method is used for rock stratum drilling of a surface mine with the rock hardness coefficient f less than or equal to 6, and meanwhile, hard interlayer rock with the hardness coefficient f equal to 7-11 can be drilled. When drilling, rotary torque and axial pressure are applied to make the drill bit rotate and feed to cut rock.
Problems in construction: the construction process is complex and numerous factors need to be comprehensively considered in the construction.
2. When a large boulder is encountered in construction, the boulder is difficult to drill by a hard drill, and a percussion drill is adopted to drill holes. The application range of the impact drilling method is as follows: the aperture is 100 cm-300 cm, and the maximum drilling depth is 50 m.
Problems in construction: in the whole construction process, drilling is a relatively complex technology, because the drilling hole forming quality and efficiency are related to many factors, not only the rock-soil layer type, the drilling tool type and the drilling process, but also the operation experience, the operation habit and the technical level of operators. The most important thing in the drilling tool is to select a suitable drill bit. After selecting a proper drill bit, selecting proper drilling parameters including bit pressure, drilling rate, well washing parameters and the like. The most key drilling parameter is the bit pressure, which is selected according to the lithology and structure of the stratum, the drilling is carried out at low pressure and slowly at the initial drilling, the drilling is carried out at constant pressure after the normal drilling, the well deviation is easy to generate at the junction of different stratums, and the bit pressure or the number of drill bit cutters is reduced at the moment.
The existing technology is that when a boulder is encountered in the construction process of inserting and driving a steel pipe pile, a rotary drilling machine or a percussion drill is selected for drilling according to the actual conditions of specific engineering, the size of equipment adopted by the two technologies is large, so that a proper piling ship needs to be selected, a large amount of manpower and financial resources are consumed, and the construction period is prolonged.
Based on this, it is necessary to provide a steel-pipe pile and meet the quick crushing tool of boulder, compare with prior art the utility model discloses the device has the operation of being convenient for, and the efficiency of construction is high, has saved equipment cost and the cost of labor that the main equipment of hiring consumed, has shortened construction cycle.
SUMMERY OF THE UTILITY MODEL
The utility model provides a steel-pipe pile meets the quick crushing tool of boulder, when meetting the boulder in the construction the problem that rig or percussion drill drilling work progress is complicated and need consider numerous factors is dug soon in the fortune, has avoided the construction quality that these reasons arouse and the many problems of construction accident.
Realize the utility model discloses the technical scheme of purpose as follows:
a steel pipe pile meets fast crushing tool of boulder, including the electrical machinery, bit assembly, fixed organization providing recoil for electrical machinery in the bit work;
the drill bit assembly includes: the drill bit is axially provided with a blind hole, the second air bag is arranged in the inner cavity of the blind hole, and the second air inlet pipe is used for inflating the second air bag;
the peripheral wall of the drill bit is provided with a plurality of openings, the openings are communicated with the blind holes, the second air bag is inflated through a second air inlet pipe and then expands outwards from each opening, and an expansion air bag cavity is formed at each opening by the second air bag;
the motor is connected with the drill bit, and the fixing mechanism is connected with the motor or the drill bit.
The utility model discloses when the drill bit enters into the boulder certain depth, aerify for the second intake pipe, because second intake pipe lug connection is to the second gasbag the inside of drill bit inner wall, aerify and just can make its second gasbag inflation, because there is the opening to begin on the drill bit lateral wall, so the second gasbag will be through the past outer inflation of opening, form a plurality of inflation gasbag chambeies, a plurality of inflation gasbag chambeies that these second gasbags expanded out collapse external hard rock open to effectual hard rock is broken into effectual small-size stone.
As a further improvement of the utility model, the drill bit further comprises a joint, the drill bit passes the motor and is connected with the joint, connect and be connected with fixed establishment.
As a further improvement of the present invention, the joint is composed of a rotating part and a fixing part, the rotating part and the fixing part are connected to each other, the rotating part is connected to the drill bit, and the fixing part is connected to the fixing mechanism. The utility model discloses a joint can realize that fixed establishment and motor are fixed, the drill bit rotates relatively, crushing tool during operation, and fixed establishment and steel-pipe pile's inner wall fixed connection do not take place to rotate, and the drill bit is rotatory.
As a further improvement of the utility model, the drill bit stops rotating after the second air bag is inflated. The utility model discloses a second intake pipe is admitted air the back, and the motor stop work, when the motor needs the during operation once more, the intake pipe gassing lies in the blind hole completely until the second gasbag, can just open the motor work.
As a further improvement, the fixing mechanism is in firm contact with the inner wall of the steel pipe pile through air bag expansion.
As a further improvement, the friction force between the expanded air bag and the inner wall of the steel pipe pile is greater than the recoil force of the drill bit and the motor during operation.
As a further improvement of the present invention, the fixing mechanism includes: the air bag comprises a first air bag, a vent pipe positioned in an inner cavity of the first air bag and a first air inlet pipe for conveying air to the vent pipe, wherein the first air inlet pipe is connected with the vent pipe, a plurality of air outlets are formed in the peripheral wall of the vent pipe, and the air in the vent pipe enters the first air bag through the air outlets.
As a further improvement of the utility model, the second intake pipe runs through first gasbag, connects the back in proper order and is connected with the second gasbag in the drill bit.
A construction method for quickly constructing a steel pipe pile encountering an boulder comprises the following steps:
step one, placing a crushing tool into the steel pipe pile to enable a drill bit to be in contact with the surface of the boulder, wherein the crushing tool is a tool for quickly crushing the steel pipe pile in any scheme when encountering the boulder;
secondly, tightly contacting the fixing mechanism with the inner wall of the steel pipe pile to fix the crushing tool in the steel pipe pile;
thirdly, the motor drives the drill bit to drill the boulder, and the drill bit stops drilling after drilling into the boulder to a certain depth;
step four, inflating the second air bag through a second air inlet pipe, wherein the second air bag expands outwards from each opening to form an expansion air bag cavity at each opening, and the expansion air bag cavity collapses the boulder;
and fifthly, separating the fixing mechanism from the inner wall of the steel pipe pile, taking out the crushing tool from the inner cavity of the steel pipe pile, and continuing to perform steel pipe pile construction.
As a further improvement of the present invention, the process of the second fixing mechanism closely contacting the inner wall of the steel pipe pile is: the first air inlet pipe conveys air to the vent pipe, the air in the vent pipe enters the first air bag through the air outlet, and the friction force between the expanded first air bag and the inner wall of the steel pipe pile is greater than the recoil force of the drill bit and the motor during working.
As a further improvement of the present invention, the process of separating the fixing mechanism from the steel pipe pile in the fifth step is: and (4) deflating the first air bag, and separating the fixing mechanism from the steel pipe pile.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses have the operation of being convenient for, the efficiency of construction is high, has saved equipment cost and the cost of labor that the main equipment of hiring consumeed, has shortened construction cycle.
Drawings
Fig. 1 is a schematic front view of a crushing tool;
FIG. 2 is a schematic view of the first bladder after opening;
fig. 3 is a cross-sectional view of a crushing tool;
fig. 4 is a schematic view of the second airbag being deployed.
In the figure, 01, the inner wall of a steel pipe pile; 1. a motor; 2. a drill bit; 3. an opening; 4. a joint; 5. A breather pipe; 6. a first air bag; 7. a first intake pipe; 8. a second intake pipe; 9. a second air bag; 10. and an air outlet.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1:
the embodiment provides a tool for rapidly crushing a steel pipe pile when encountering an boulder, which comprises a motor 1, a drill bit assembly and a fixing mechanism for providing recoil for the motor 1 when a drill bit 2 works, as shown in fig. 1; the drill bit assembly includes: the drilling head 2 is axially provided with a blind hole, a second air bag 9 arranged in the inner cavity of the blind hole, and a second air inlet pipe 8 for inflating the second air bag 9; a plurality of openings 3 are formed in the peripheral wall of the drill bit 2, the openings 3 are communicated with the blind holes, the second air bag 9 is inflated through a second air inlet pipe 8 and then expands outwards from each opening 3, and an expansion air bag cavity is formed at each opening 3 by the second air bag 9; the motor 1 is connected with the drill bit 2, and the fixing mechanism is connected with the motor 1 or the drill bit 2.
This embodiment is when the drill bit 2 enters into the boulder certain depth, aerify for second intake pipe 8, because second intake pipe 8 lug connection is to the second gasbag 9 the inside of 2 inner walls of drill bit, it just can make its second gasbag 9 inflation to aerify, because there is opening 3 at the beginning on the 2 lateral walls of drill bit, second gasbag 9 will be through opening 3 toward external inflation then, form a plurality of expansion gasbag chambeies, as shown in figure 4, a plurality of expansion gasbag chambeies that these second gasbags 9 expanded out burst external hard rock open, thereby effectual hard rock is broken into effectual small-size stone.
The crushing tool of this embodiment, in addition to including motor 1, drill bit subassembly, fixed establishment, still include to connect 4, and drill bit 2 passes motor 1 and is connected with connecting 4, connects 4 and is connected with fixed establishment. Preferably, the joint 4 is composed of a rotating part and a fixing part, the rotating part and the fixing part are connected, the rotating part is connected with the drill bit 2, and the fixing part is connected with the fixing mechanism. The joint 4 of this embodiment can realize that fixed mechanism and motor 1 are fixed, drill bit 2 rotates relatively, and crushing tool during operation, fixed mechanism and the 01 fixed connection of inner wall of steel-pipe pile do not take place to rotate, and drill bit 2 is rotatory.
In this embodiment, it is preferable that the drill 2 stops rotating after the second air bag 9 is inflated. After the second air inlet pipe 8 of the embodiment admits air, the motor 1 stops working, and when the motor 1 needs to work again, the air inlet pipe is deflated until the second air bag 9 is completely positioned in the blind hole, so that the motor 1 can be started to work.
As shown in fig. 2, the fixing means is firmly contacted with the inner wall 01 of the steel pipe pile by the expansion of the balloon. The friction force between the expanded air bag and the inner wall of the steel pipe pile is larger than the recoil force of the drill bit 2 and the motor 1 during working. The fixing mechanism includes: the air supply device comprises a first air bag 6, a vent pipe 5 positioned in an inner cavity of the first air bag 6 and a first air inlet pipe 7 for conveying air to the vent pipe 5, wherein the first air inlet pipe 7 is connected with the vent pipe 5, a plurality of air outlets 10 are formed in the peripheral wall of the vent pipe 5, and the air in the vent pipe 5 enters the first air bag 6 through the air outlets 10.
As shown in fig. 3, the second air inlet pipe 8 penetrates the first air bag 6 and the joint 4 in sequence and is connected with the second air bag 9 in the drill 2.
The embodiment also discloses a construction method for rapidly constructing the steel pipe pile when encountering the boulder, which comprises the following steps:
step one, placing a crushing tool into the steel pipe pile to enable a drill bit 2 to be in contact with the surface of the boulder, wherein the crushing tool is a tool for quickly crushing the steel pipe pile in any scheme when encountering the boulder;
secondly, tightly contacting the fixing mechanism with the inner wall 01 of the steel pipe pile to fix the crushing tool in the steel pipe pile;
thirdly, the motor 1 drives the drill bit 2 to drill the boulder, and the drill bit 2 stops drilling after drilling into the boulder to a certain depth;
step four, inflating the second air bag 9 through the second air inlet pipe 8, wherein the second air bag 9 expands outwards from each opening 3, an expansion air bag cavity is formed at each opening 3, and the expansion air bag cavity bursts the boulders;
and fifthly, separating the fixing mechanism from the inner wall of the steel pipe pile, taking out the crushing tool from the inner cavity of the steel pipe pile, and continuing to perform steel pipe pile construction.
And the process that the fixing mechanism is in close contact with the inner wall of the steel pipe pile in the second step is as follows: the first air inlet pipe 7 is used for conveying air to the air pipe 5, the air in the air pipe 5 enters the first air bag 6 through the air outlet 10, and the friction force between the expanded first air bag 6 and the inner wall of the steel pipe pile is larger than the recoil force of the drill bit 2 and the motor 1 during working.
And in the fifth step, the separation process of the fixing mechanism and the steel pipe pile is as follows: the first air bag 6 is deflated, and the fixing mechanism is separated from the steel pipe pile.
When the drill bit drills into the rock, the entire interior of the drill bit is tightly packed with the hidden air bag. That is to say the volume of the bladder in the collected and folded state is similar to the volume of the bore of the drill, so that the state at the position of the opening 3 is the state in which the bladder fills the opening 3. In order to prevent the peripheral wall of the opening 3 from scraping the second airbag when the second airbag is expanded outwards through the opening 3, the opening 3 is designed to be smooth or chamfered in a circular arc.
When the crushing tool needs to be crushed after encountering stones or hard objects, the crushing tool of the embodiment is put down, air pressure (or air suction) is released after the crushing task is completed, the air bags are contracted to a certain degree, at the moment, the whole crushing mechanism can be taken out, the crushing tool can be put down again when encountering the task again, and the second air bags can be manually filled into the original state on the land surface when putting down again.
Example 2:
on the basis of the scheme disclosed in embodiment 1, the embodiment discloses a rapid crushing tool and a construction method for a steel pipe pile encountering an boulder, wherein the rapid crushing tool comprises the following steps: as shown in fig. 1-4, firstly, the drill bit 2 connected with the motor 1 realizes the common percussion drill effect, the drill bit 2 is specially arranged at ordinary times, the drill bit 2 is drilled with a hole in the central axial direction, an opening 3 is arranged on the side wall, the drill bit 2 penetrates through the motor at the moment, a connector 4 is arranged at the other end of the motor of the drill bit, a vent pipe 5 is arranged on the connector 4, a first air bag 6 is arranged on the outer side wall of the vent pipe 5, an air outlet 10 is arranged on the side wall of the vent pipe 5, a first air inlet pipe 7 and a second air inlet pipe 8 are arranged at the upper end of the vent pipe 5, the first air inlet pipe 7 is directly connected into the vent pipe 5 to ventilate the first air inlet pipe 7, air, the air flow then enters the air outlet 10 in the side wall of the ventilation tube 5 into the first air chamber 6, and the second air inlet tube 8 is directly connected to the second air chamber 9 in the drill bit 2.
When in work: when meeting the stone or hard ground, put into the stone or hard ground surface to this device, aerify for first intake pipe 7 this moment, the air current will expand first gasbag 6 to open certain shape along the lateral wall shape in the tubular pile, first gasbag 6 at this moment because the volume of expanding open contacts with the tubular pile inner wall, and very inseparable firm contact, will guarantee this device at this moment and be in the stationary state. And because the effect of aerifing of high atmospheric pressure, start motor 1 this moment then, start the percussion drill promptly, drill bit 2 that motor 1 is connected will rotate, strike drilling stone and hard rock, the purpose that first gasbag 6 opened and well contact with the tubular pile wall is exactly to guarantee to drive drill bit 2 when motor 1 starts, has the effect of a good recoil to motor 1, because the percussion drill must have a good holding power and good recoil to fix when the operation, and still need have a continuous pressure to motor 1, just can effectually squeeze into drill bit 2 or bore into by the rock that is bored inside. This is achieved by the first air bag 6 and the constant supply of air ensures a constant recoil. When the drill bit 2 enters into certain degree of depth, aerify for second intake pipe 8, because second intake pipe 8 lug connection is to the second gasbag 9 the inside of 2 inner walls of drill bit, it just can make its second gasbag 9 inflation to aerify, because there is opening 3 to begin on the 2 lateral walls of drill bit, so second gasbag 9 will be through opening 3 toward the inflation outward, form a plurality of inflation gasbag chambeies, it is exactly that a plurality of inflation gasbag chambeies that these second gasbags 9 expand out collapse external hard rock, thereby effectual hard rock is broken into effectual small-size stone, the work on next step is carried out smoothly again.
The preferred joint 4 is a quick connector which is a purchased part, such as a rotary quick connector of the german FESTO with the model number of QSR-1/8-8153404, and can realize the air inlet effect and the relative rotation effect of the quick connector in the ventilation state, because the drill bit 2 can drive other drill bits 2 connected with the drill bit to rotate when rotating, in order to avoid the situation, the quick connector is selected, and the lower end of the quick connector can rotate relative to the upper end in the ventilation state, so that the use effect and the purpose of the user are achieved.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A rapid crushing tool for a steel pipe pile encountering an orphan stone is characterized by comprising a motor, a drill bit assembly and a fixing mechanism for providing recoil for the motor during the working of a drill bit;
the drill bit assembly includes: the drill bit is axially provided with a blind hole, the second air bag is arranged in the inner cavity of the blind hole, and the second air inlet pipe is used for inflating the second air bag;
the peripheral wall of the drill bit is provided with a plurality of openings, the openings are communicated with the blind holes, the second air bag is inflated through a second air inlet pipe and then expands outwards from each opening, and an expansion air bag cavity is formed at each opening by the second air bag;
the motor is connected with the drill bit, and the fixing mechanism is connected with the motor or the drill bit.
2. The breaking tool of claim 1, further comprising a joint, wherein the bit is connected to the joint through a motor, and wherein the joint is connected to a securing mechanism.
3. The breaking tool of claim 2, wherein the joint is comprised of a rotating portion and a fixed portion coupled therebetween, the rotating portion being connected to the drill bit and the fixed portion being connected to the securing mechanism.
4. A breaking tool according to claim 2 or 3, wherein the rotation of the drill bit is stopped after the inflation of the second balloon.
5. The crushing tool of claim 1, wherein the securing mechanism is in firm contact with the inner wall of the steel pipe pile by balloon expansion.
6. The crushing tool of claim 5, wherein the friction force between the expanded air bag and the inner wall of the steel pipe pile is larger than the recoil force of the drill bit and the motor during operation.
7. The crushing tool of claim 5 or 6, wherein the securing mechanism comprises: the air bag comprises a first air bag, a vent pipe positioned in an inner cavity of the first air bag and a first air inlet pipe for conveying air to the vent pipe, wherein the first air inlet pipe is connected with the vent pipe, a plurality of air outlets are formed in the peripheral wall of the vent pipe, and the air in the vent pipe enters the first air bag through the air outlets.
8. The crushing tool of claim 7, wherein the second air inlet pipe penetrates through the first air bag in sequence, and is connected with the second air bag in the drill bit after being connected with the joint.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922213744.2U CN211973629U (en) | 2019-12-11 | 2019-12-11 | Rapid crushing tool for steel pipe pile encountering boulder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922213744.2U CN211973629U (en) | 2019-12-11 | 2019-12-11 | Rapid crushing tool for steel pipe pile encountering boulder |
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| CN211973629U true CN211973629U (en) | 2020-11-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112942477A (en) * | 2019-12-11 | 2021-06-11 | 中交二公局第一工程有限公司 | Rapid crushing tool for steel pipe pile encountering boulder and construction method |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112942477A (en) * | 2019-12-11 | 2021-06-11 | 中交二公局第一工程有限公司 | Rapid crushing tool for steel pipe pile encountering boulder and construction method |
| CN112942477B (en) * | 2019-12-11 | 2023-04-21 | 中交二公局第一工程有限公司 | Rapid crushing tool for steel pipe pile encountering boulder and construction method |
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