CN112726581B - Cement mixing pile drill bit with bidirectional rotating mixing blades - Google Patents
Cement mixing pile drill bit with bidirectional rotating mixing blades Download PDFInfo
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- CN112726581B CN112726581B CN202011605841.7A CN202011605841A CN112726581B CN 112726581 B CN112726581 B CN 112726581B CN 202011605841 A CN202011605841 A CN 202011605841A CN 112726581 B CN112726581 B CN 112726581B
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- bevel gear
- stirring blade
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- rotating shaft
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
Abstract
The invention discloses a cement mixing pile drill bit with bidirectional rotation mixing blades, which comprises: the device comprises a drill bit, a sleeve rod, a hollow main shaft, a first bevel gear, a rotating shaft, a stirring blade, a second bevel gear and a third bevel gear. The lower end part of the hollow main shaft is fixedly connected with a first bevel gear, the middle part of the rotating shaft is communicated with the lower end of the hollow main shaft and is rotationally connected with the lower end of the hollow main shaft, the first stirring blade and the second stirring blade are respectively communicated with the left end and the right end of the rotating shaft and are rotationally connected with the same, the second bevel gear is fixedly connected with the right end of the first stirring blade, and the third bevel gear is fixedly connected with the left end of the second stirring blade. When the loop bar rotates, the loop bar drives the rotating shaft to rotate around the hollow main shaft, and simultaneously, the first stirring blade and the second stirring blade rotate around respective axes, so that the stirring uniformity of the foundation soil and the cement paste is improved, and the pile forming quality is improved.
Description
Technical Field
The invention relates to the technical field of building construction equipment, in particular to a cement mixing pile drill bit with bidirectional rotation mixing blades.
Background
In the composite foundation treatment of buildings, cement mixing piles are usually adopted for reinforcement, the method is that foundation soil is mixed through mechanical blades and is uniformly mixed with additional cement slurry to form a pile body to reinforce the foundation, and the problems that the adaptability to the stratum is poor, the mixing uniformity is difficult to master, the construction quality is difficult to control and the construction efficiency is low commonly exist in the traditional pile body. Such as: when handling soft soil foundation, owing to clay layer or the intermediate layer in the reinforcement soil layer, because the cohesive force between this type of clay granule is strong, it is difficult for mixing evenly, produces easily among the stirring process and embraces the brill phenomenon.
The existing cement mixing pile machine can be divided into a single shaft, a double shaft and a three shaft, the rotation direction can be divided into unidirectional mixing and bidirectional mixing, and the power output can be divided into single power and multi-power. The rotation of the existing stirring blade is generally driven by multiple powers, namely, a motor is additionally arranged in the drill bit to drive the rotation of the stirring blade, and the inner space of the drill bit is less, so that the scheme is difficult to realize. In the drill, a stopper plate is attached to the drill so that the movement of the stopper plate is restricted to some extent, and the rotation of a certain member is stopped, whereby the rotation of the stirring blade is realized.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
The invention provides a cement mixing pile drill bit with bidirectional rotation mixing blades, which comprises a drill bit; the drill bit is fixedly arranged at the lower end of the sleeve rod, and a through hole is formed in the lower end of the sleeve rod and is communicated with the accommodating cavity; the hollow main shaft is fixedly arranged and vertically arranged in the accommodating cavity; the first conical gear is fixedly connected with the lower end part of the hollow main shaft; the rotating shaft is hollow, the rotating shaft is horizontally arranged, the middle of the rotating shaft is communicated with and rotatably connected with the lower end of the hollow main shaft, and the left end and the right end of the rotating shaft penetrate through the two through holes and extend out of the loop bar; the stirring blade is hollow, a pulp outlet hole is formed in the stirring blade, the stirring blade comprises a first stirring blade and a second stirring blade, the first stirring blade and the second stirring blade are respectively sleeved at the left end and the right end of the rotating shaft, the first stirring blade is communicated and rotatably connected with the left end of the rotating shaft, and the second stirring blade is communicated and rotatably connected with the right end of the rotating shaft; the second bevel gear is fixedly connected with the right end of the first stirring blade and meshed with the first bevel gear; and the third bevel gear is fixedly connected with the left end of the second stirring blade and is meshed with the first bevel gear.
According to the cement mixing pile drill with the bidirectional rotating mixing blades, which is provided by the embodiment of the invention, at least the following beneficial effects are achieved: the cement mixing pile drill bit with the mixing blades rotating in two directions is used for a cement mixing pile machine, the sleeve rod is connected with a drill rod of the cement mixing pile machine, the hollow main shaft is fixedly communicated with a cement paste joint at the bottom of the drill rod, the drill rod drives the sleeve rod to rotate, and the hollow main shaft keeps static; the lower end part of the hollow main shaft is fixedly connected with a first bevel gear, the middle part of the rotating shaft is communicated and rotatably connected with the lower end of the hollow main shaft, two ends of the rotating shaft penetrate through the left through hole and the right through hole to extend out of the loop bar, two ends of the rotating shaft extending out of the sleeve are sleeved with stirring blades, the right end of the first stirring blade and the left end of the second stirring blade are respectively fixed with a second bevel gear and a third bevel gear, and the second bevel gear and the third bevel gear are meshed with the first bevel gear; the drill rod of the cement mixing pile machine rotates to drive the sleeve rod to rotate, the sleeve rod drives the rotating shaft to rotate, the rotating shaft rotates around the hollow main shaft, the first bevel gear is fixed because the hollow main shaft is fixedly communicated with a cement paste joint at the bottom of the drill rod, the second bevel gear and the third bevel gear are arranged at the left end and the right end of the rotating shaft, and when the rotating shaft rotates, the second bevel gear and the third bevel gear are driven to rotate, namely the first mixing blade and the second mixing blade rotate while the rotating shaft rotates, and cement paste flows out from a grout outlet; according to the cement mixing pile drill with the two-way rotating mixing blades, the rotation of the mixing blades and the rotation of the first mixing blades and the second mixing blades can be realized only by driving the sleeve rod through the drill rod, so that the mixing uniformity of foundation soil and cement paste is improved, and the pile forming quality is improved.
According to some embodiments of the invention, the cement mixing pile drill bit with the bidirectional rotating mixing blades further comprises a fourth bevel gear and a screw rod, the fourth bevel gear is arranged below the second bevel gear and the third bevel gear and is meshed with the second bevel gear and the third bevel gear, the screw rod is fixed at the bottom of the accommodating cavity, and the fourth bevel gear and the screw rod are arranged in a rotating mode.
The fourth bevel gear plays a supporting role for the second bevel gear and the third bevel gear, the screw is fixed at the bottom of the accommodating cavity through threads, the fourth bevel gear and the screw are arranged in a rotating mode, when the drill rod drives the sleeve rod and the rotating shaft to rotate, the first stirring blade and the second stirring blade rotate around respective axes, namely the second bevel gear and the third bevel gear rotate, and the fourth bevel gear freely rotates along with the second bevel gear and the third bevel gear under the positioning effect of the screw.
According to some embodiments of the invention, the cement mixing pile drill bit with the bidirectional rotating mixing blades further comprises a shell and a first bearing, the first bevel gear, the second bevel gear, the third bevel gear and the fourth bevel gear are all arranged in the shell, the two first bearings are respectively arranged in the left through hole and the right through hole, and the shell and the sleeve rod are connected through the first bearings.
Stirring leaf two-way rotatory's cement mixing pile drill bit still is provided with the casing, and first conical gear, second conical gear, third conical gear and fourth conical gear all set up in the casing, and the casing plays the guard action to four conical gear, and keeps the inseparable laminating between the conical gear, and the casing is connected with the loop bar through two first bearings, realizes the fixed of casing and loop bar, and being provided with of first bearing does benefit to the installation of realizing casing and loop bar.
According to some embodiments of the invention, the first, second, third and fourth bevel gears are provided with gear washers on their housing contacting ends.
Gear washers are arranged at the contact ends of the first bevel gear, the second bevel gear, the third bevel gear and the fourth bevel gear with the shell, namely, a gear gasket is arranged between the first bevel gear and the upper end surface in the shell, a gear gasket is arranged between the second bevel gear and the left end surface in the shell, a gear gasket is arranged between the third bevel gear and the right end surface in the shell, a gear gasket is arranged between the fourth bevel gear and the lower end surface in the shell, the cement mixing pile drill bit with the bidirectional rotation mixing blades is beneficial to controlling the relative position of each conical gear through the arrangement of the gear washers, avoids noise caused by overlarge gear meshing clearance, the distance between the bevel gears can be conveniently adjusted through the selection of the thickness of the gear washer, the meshing point is adjusted, and the applicability and the practicability of the cement mixing pile drill bit with the mixing blades rotating in two directions are improved.
According to some embodiments of the present invention, the cement mixing pile drill bit with the bi-directional rotation of the mixing blade further comprises a mixing rod fixed to an upper end of the sleeve rod.
Stirring leaf two-way rotatory cement mixing stake drill bit still includes the puddler, and the puddler is fixed in the upper end of loop bar, and along with the loop bar rotates in step, this stirring leaf two-way rotatory cement mixing stake drill bit sets up the stirring leaf and sets up the puddler at the upper end through the lower tip at the loop bar, stirs foundation soil and grout from a plurality of positions to be favorable to improving the stirring efficiency of stirring leaf two-way rotatory cement mixing stake drill bit, improve the homogeneity of stirring.
According to some embodiments of the present invention, the first bevel gear is fixedly connected to the lower end portion of the hollow main shaft through a first connection key, the second bevel gear is fixedly connected to the right end of the first stirring blade through a second connection key, and the third bevel gear is fixedly connected to the left end of the second stirring blade through a third connection key.
First conical gear passes through first connecting key fixed connection with the lower tip of hollow main shaft, second conical gear passes through second connecting key fixed connection with the right-hand member of first stirring leaf, third conical gear passes through third connecting key fixed connection with the left end of second stirring leaf, thereby realize first conical gear and hollow main shaft's fixed connection conveniently, and the fixed connection of second conical gear and third conical gear and rotation axis, can transmit the moment of torsion betterly through the restriction of key and keyway, it is comparatively reliable to connect, can satisfy the user demand of this stirring leaf two-way rotatory cement stirring stake drill bit.
According to some embodiments of the invention, the cement mixing pile drill bit with the bi-directional rotation of the mixing blade further comprises a universal joint, and the rotation shaft is communicated with the hollow main shaft through the universal joint.
Stirring leaf two-way rotatory cement stirring stake drill bit still includes universal joint, guarantees through universal joint that the rotation axis is when rotating around hollow main shaft, and the circulation of grout can not cause the not hard up revealing that leads to the grout of interface, and grout flows from the grout joint, flows through hollow main shaft, universal joint and rotation axis inner chamber in proper order, flows out from the grout hole department of stirring leaf at last to satisfy the demand that the stirring was become the stake.
According to some embodiments of the invention, the inside of the loop bar protrudes towards the hollow main shaft to form a stopper, and the stopper is arranged at the upper end of the loop bar.
The loop bar is inside to the outstanding stopper that forms of hollow main shaft, and the stopper setting is at the upper end of loop bar, and the stopper mainly plays limiting displacement and supporting role to hollow main shaft, reduces the inside rocking of cement stirring stake drill bit of stirring leaf two-way rotation in the work progress, reduces the cracked risk of hollow main shaft in the work progress to increase practicality and the durability of this cement stirring stake drill bit of stirring leaf two-way rotation.
According to some embodiments of the present invention, the stirring blade is formed with a stirring bump.
The stirring leaf is last to be formed with the stirring lug to increase the stirring effect of stirring leaf to foundation soil and grout, increase the homogeneity of mixing of grout and foundation soil, thereby increase cement mixing pile quality, increase the practicality of this stirring leaf two-way rotation's cement mixing pile drill bit.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a cement mixing pile drill bit with bi-directional rotation of mixing blades according to some embodiments of the present invention;
fig. 2 is a partially enlarged view a of the cement mixing pile bit with the mixing blade bidirectionally rotating shown in fig. 1.
In the drawings: 110-a drill bit; 120-loop bar; 121-a receiving cavity; 130-a hollow main shaft; 140-a first bevel gear; 150-rotation axis; 161-a first stirring blade; 162-second stirring blade; 163-grout outlet; 170-second bevel gear; 180-a third bevel gear; 190-a fourth bevel gear; 200-a housing; 300-a first bearing; 400-gear washer; 500-a stirring rod; 610-first connecting key; 620-second bond; 630-a third connecting bond; 700-screw; 800-a universal joint; 900-a limiting block; 1000-stirring the bump.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of the terms are not limited to a certain number, and a plurality of the terms are two or more, and the terms larger, smaller, larger, and the like are understood to include the number of the terms, and the terms larger, smaller, and the like are understood to include the number of the terms. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated. Additionally, appearing throughout and/or representing three side-by-side scenarios, e.g., A and/or B represents a scenario satisfied by A, a scenario satisfied by B, or a scenario satisfied by both A and B.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
An embodiment of the present invention will be described below with reference to fig. 1 to 2.
In the composite foundation treatment of buildings, cement mixing piles are usually adopted for reinforcement, the method is that foundation soil is mixed through mechanical blades and is uniformly mixed with additional cement slurry to form a pile body to reinforce the foundation, and the problems that the adaptability to the stratum is poor, the mixing uniformity is difficult to master, the construction quality is difficult to control and the construction efficiency is low commonly exist in the traditional pile body. Such as: when handling soft soil foundation, owing to clay layer or the intermediate layer in the reinforcement soil layer, because the cohesive force between this type of clay granule is strong, it is difficult for mixing evenly, produces easily among the stirring process and embraces the brill phenomenon.
Referring to fig. 1-2, an embodiment of the present invention provides a cement mixing pile drill with bi-directional rotation mixing blades, including: a drill 110, a sleeve rod 120, a hollow main shaft 130, a first bevel gear 140, a rotating shaft 150, a stirring blade, a second bevel gear 170 and a third bevel gear 180.
An accommodating cavity 121 with an upward opening is formed in the loop bar 120, the drill bit 110 is fixedly mounted at the lower end of the loop bar 120, and a through hole is formed at the lower end of the loop bar 120 and is communicated with the accommodating cavity 121.
The hollow spindle 130 is fixedly disposed and vertically disposed in the accommodating cavity 121.
The first bevel gear 140 is fixedly connected to the lower end of the hollow main shaft 130.
The rotating shaft 150 is hollow, the rotating shaft 150 is horizontally arranged, the middle of the rotating shaft 150 is communicated with the lower end of the hollow main shaft 130 and is rotatably connected with the lower end of the hollow main shaft, and the left end and the right end of the rotating shaft 150 penetrate through the two through holes to extend out of the loop bar 120.
The stirring blade is hollow inside, the stirring blade is provided with a slurry outlet 163, the stirring blade comprises a first stirring blade 161 and a second stirring blade 162, the first stirring blade 161 and the second stirring blade 162 are respectively sleeved at the left end and the right end of the rotating shaft 150, the first stirring blade 161 is communicated with the left end of the rotating shaft 150 and is rotatably connected with the left end of the rotating shaft, and the second stirring blade 162 is communicated with the right end of the rotating shaft 150 and is rotatably connected with the right end of the rotating shaft 150.
The second bevel gear 170 is fixedly connected to the right end of the first agitating blade 161, and the second bevel gear 170 is engaged with the first bevel gear 140.
The third bevel gear 180 is fixedly connected with the left end of the second stirring blade 162, and the third bevel gear 180 is engaged with the first bevel gear 140.
The cement mixing pile drill bit with the bidirectional rotating mixing blades provided by the embodiment of the invention is used for a cement mixing pile machine, the upper end of a sleeve rod 120 is connected with a drill rod of the cement mixing pile machine, the drill rod drives the sleeve rod 120 to rotate, an accommodating cavity 121 with an upward opening is formed inside the sleeve rod 120, the accommodating cavity 121 is used for accommodating a cement slurry pipeline, a transmission device of the mixing blades and the like, and the drill bit 110 is fixed at the lower end of the sleeve rod 120. This stirring leaf two-way rotatory cement mixing pile drill bit includes hollow main shaft 130, and hollow main shaft 130 keeps quiescent condition at the in-process of stirring leaf two-way rotatory cement mixing pile drill bit operation with the grout joint intercommunication of cement mixing pile machine bottom, and hollow main shaft 130 is vertical to be set up in the inside chamber 121 that holds of loop bar 120.
The lower end of the hollow main shaft 130 is connected with a series of gear sets including a first bevel gear 140, a second bevel gear 170 and a third bevel gear 180
The drill rod is driven to rotate by the rotation of the big disc of the cement mixing pile machine, the drill rod drives the sleeve rod 120 of the cement mixing pile drill bit with the mixing blades rotating in two directions to rotate, the sleeve rod 120 drives the rotating shaft 150 to rotate around the hollow main shaft 130 through the limiting effect of the through hole, since the second bevel gear 170 and the third bevel gear 180 are respectively provided on the left and right ends of the rotation shaft 150, and the second bevel gear 170 and the third bevel gear 180 are kept in a tight meshing state with the first bevel gear 140, as the rotating shaft 150 rotates around the hollow main shaft 130, the second bevel gear 170 and the third bevel gear 180 also rotate around the hollow main shaft 130, the second bevel gear 170 and the third bevel gear 180 rotate around respective axes, the first stirring blade 161 rotates under the driving of the second bevel gear 170, the second stirring blade 162 rotates under the driving of the third bevel gear 180, and the rotating directions of the first stirring blade 161 and the second stirring blade 162 are opposite. The fourth bevel gear 190 only supports the second bevel gear 170 and the third bevel gear 180, and cement slurry flows out from the cement slurry joint, flows through the hollow main shaft 130, the rotating shaft 150 and the stirring blades, and finally flows out from the slurry outlet hole 163 on the stirring blades.
The cement mixing pile drill bit with the mixing blades rotating in two directions provided by the embodiment of the invention can realize that the rotating shaft 150 rotates around the hollow main shaft 130 to mix foundation soil only under the driving of the drill rod of the cement mixing pile machine, the structure in the cement mixing pile drill bit with the mixing blades rotating in two directions is simple and reliable without additionally adding a driving device, and the mixing blades are driven to rotate under the driving of the gear set to mix the foundation soil and cement paste from multiple angles, so that the cement paste can be well mixed with the foundation soil uniformly, the mixing uniformity is improved, and the pile forming quality is increased to reinforce the foundation.
It should be noted that, based on the shape and structure of the hollow spindle 130 provided in the above-mentioned embodiment, it also falls within the protection scope of the present application that the rotating shaft 150 provided with more than two stirring ends is matched with the loop bar 120 provided with more than two through holes, for example, the rotating shaft 150 provided with three stirring ends is matched with the loop bar 120 provided with three through holes, the rotating shaft 150 provided with four stirring ends is matched with the loop bar 120 provided with four through holes, and so on.
In some embodiments of the present invention, the cement mixing pile drill bit with the bidirectional rotation mixing blades further comprises a fourth bevel gear 190 and a screw 700, the fourth bevel gear 190 is disposed below the second bevel gear 170 and the third bevel gear 180 and is meshed with the second bevel gear 170 and the third bevel gear 180, the screw 700 is fixed at the bottom of the accommodating cavity 121, and the fourth bevel gear 190 and the screw 700 are rotatably disposed.
The fourth bevel gear 190 only supports the second bevel gear 170 and the third bevel gear 180, a threaded hole is formed in the bottom surface of the accommodating cavity 121, the screw 700 is screwed into the threaded hole through the threaded portion to fix the screw 700 and the loop bar 120, the fourth bevel gear 190 is sleeved on the screw 700, the screw 700 positions and limits the fourth bevel gear 190, the fourth bevel gear 190 is tightly meshed with the second bevel gear 170 and the third bevel gear 180, when the second bevel gear 170 and the third bevel gear 180 rotate, the fourth bevel gear 190 can freely rotate along with the fourth bevel gear 190, and the screw 700 plays a limiting role in limiting the rotation of the fourth bevel gear 190.
In some embodiments of the present invention, the mixing blade bi-directional rotation cement mixing pile drill bit further comprises a housing 200 and a first bearing 300. The first bevel gear 140, the second bevel gear 170, the third bevel gear 180 and the fourth bevel gear 190 are all arranged in the shell 200, the shell 200 plays a role in protecting the gear sets, risks that the gear sets are damaged by external impact are reduced, the shell 200 enables the gear sets to be tightly meshed, phenomena of sliding teeth and the like between the gear sets are avoided, and a transmission relation between the gear sets is maintained.
Two first bearings 300 set up respectively about in two through-holes, casing 200 realizes being connected through first bearing 300 and loop bar 120, the outside end and the loop bar 120 butt of first bearing 300 promptly, the medial extremity and the casing 200 butt of first bearing 300 play the supporting role to casing 200, are favorable to casing 200 to install on loop bar 120, improve the practicality of stirring leaf two-way rotation's cement stirring stake drill bit.
In some embodiments of the present invention, the contact ends of the first bevel gear 140, the second bevel gear 170, the third bevel gear 180, and the fourth bevel gear 190 with the housing 200 are provided with gear washers 400. That is, a gear washer 400 is provided between the first bevel gear 140 and the upper end surface inside the housing 200, a gear washer 400 is provided between the second bevel gear 170 and the left end surface inside the housing 200, a gear washer 400 is provided between the third bevel gear 180 and the right end surface inside the housing 200, and a gear washer 400 is provided between the fourth bevel gear 190 and the lower end surface inside the housing 200. This stirring leaf two-way rotatory cement stirring stake drill bit is favorable to controlling the relative position between each conical gear through setting up of gear packing ring 400, avoids the too big noise that arouses of gear meshing clearance, and the selection through gear packing ring 400 thickness can be conveniently adjusted the interval between the conical gear, and the meshing point is adjusted promptly, is favorable to improving this stirring leaf two-way rotatory cement stirring stake drill bit's suitability and practicality.
In some embodiments of the present invention, the cement mixing pile drill with the bi-directional rotation of the mixing blades further includes a mixing rod 500, the mixing rod 500 is fixed at the upper end of the sleeve 120, and as the sleeve 120 rotates synchronously, the cement mixing pile drill with the bi-directional rotation of the mixing blades stirs foundation soil from multiple positions by arranging the mixing blades at the lower end of the sleeve 120 and the mixing rod 500 at the upper end, which is beneficial to improving the mixing efficiency and the mixing uniformity of the cement mixing pile drill with the bi-directional rotation of the mixing blades.
In some embodiments of the present invention, the first bevel gear 140 is fixedly connected to the lower end of the hollow spindle 130 through a first connection key 610, the second bevel gear 170 is fixedly connected to the right end of the first stirring blade 161 through a second connection key 620, and the third bevel gear 180 is fixedly connected to the left end of the second stirring blade 162 through a third connection key 630.
Stirring leaf two-way rotatory cement mixing stake drill bit is through setting up first connecting key 610, second connecting key 620 and third connecting key 630, utilize the pressure between key and the keyway to transmit the moment of torsion, thereby realize the fixed connection of first conical gear 140 and hollow spindle 130 conveniently, second conical gear 170 and first stirring leaf 161's fixed connection, third conical gear 180 and second stirring leaf 162's fixed connection, in some embodiments, the connecting key can be the flat key, adopt flat key connected mode can transmit the moment of torsion betterly, it is comparatively reliable to connect, can satisfy this stirring leaf two-way rotatory cement mixing stake drill bit's user demand.
In some embodiments of the present invention, the connecting key is a spline, the first bevel gear 140 and the lower end of the hollow spindle may be fixedly connected by the first spline, the second bevel gear 170 and the right end of the first stirring blade 161 are fixedly connected by the second spline, and the third bevel gear 180 and the left end of the second stirring blade 162 are fixedly connected by the third spline. The spline can transmit great moment of torsion, can satisfy the user demand of stirring leaf two-way rotatory cement mixing stake drill bit betterly, and the moment of torsion on the conical gear transmits the stirring leaf better on, accomplishes the mixture to foundation soil and grout, improves the quality of stake.
In some embodiments of the present invention, the cement mixing pile drill bit with the bidirectional rotation mixing blades further includes a universal joint 800, the rotation shaft 150 is communicated with the hollow spindle 130 through the universal joint 800, the cement mixing pile drill bit with the bidirectional rotation mixing blades ensures that the circulation of cement slurry does not cause the interface to loosen and cause the leakage of cement slurry while the rotation shaft 150 rotates around the hollow spindle 130 through the universal joint 800, the cement slurry flows out from the cement slurry joint, sequentially flows through the hollow spindle 130, the universal joint 800 and the inner cavity of the rotation shaft 150, and finally flows out from the slurry outlet hole 163 of the mixing blades, thereby satisfying the requirement of mixing pile formation.
In some embodiments of the present invention, the inside of the loop bar 120 protrudes toward the hollow spindle 130 to form the limiting block 900, the limiting block 900 is disposed at the upper end portion of the loop bar 120, the limiting block 900 has a limiting function and a supporting function on the hollow spindle 130, so as to reduce the internal shaking phenomenon of the cement mixing pile drill bit with the mixing blades rotating in two directions during the operation process, reduce the risk of the hollow spindle 130 breaking during the construction process, and thereby increase the practicability and durability of the cement mixing pile drill bit with the mixing blades rotating in two directions.
In some embodiments of the present invention, the stirring blade is provided with the stirring lug 1000, and the first stirring blade 161 and the second stirring blade 162 rotate while the rotating shaft 150 rotates around the hollow main shaft 130, so as to stir the foundation soil and the cement slurry well, and the stirring blade is provided with the stirring lug 1000, which is beneficial to improving the stirring effect of the foundation soil and the cement slurry, improving the stirring uniformity, and improving the practicability of the cement stirring pile drill bit with the stirring blade rotating in two directions.
While the preferred embodiments of the present invention have been described in detail, it is to be understood that the invention is not limited thereto, and that various equivalent modifications or substitutions may be made by those skilled in the art without departing from the spirit of the present invention, and such equivalents and substitutions are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (6)
1. The utility model provides a stirring leaf two-way rotatory cement stirring stake drill bit for cement stirring stake machine, its characterized in that includes:
a drill bit;
the drill bit comprises a sleeve rod, a drill bit and a drill bit, wherein an accommodating cavity with an upward opening is formed in the sleeve rod, the drill bit is fixedly mounted at the lower end of the sleeve rod, and a through hole is formed in the lower end of the sleeve rod and is communicated with the accommodating cavity;
the hollow main shaft is fixedly arranged and vertically arranged in the accommodating cavity; the inner part of the sleeve rod protrudes towards the hollow main shaft to form a limiting block, and the limiting block is arranged at the upper end part of the sleeve rod;
the first conical gear is fixedly connected with the lower end part of the hollow main shaft;
the rotating shaft is hollow, the rotating shaft is horizontally arranged, the middle of the rotating shaft is communicated with and rotatably connected with the lower end of the hollow main shaft, and the left end and the right end of the rotating shaft penetrate through the two through holes and extend out of the loop bar;
the stirring blade is hollow, a pulp outlet hole is formed in the stirring blade, the stirring blade comprises a first stirring blade and a second stirring blade, the first stirring blade and the second stirring blade are respectively sleeved at the left end and the right end of the rotating shaft, the first stirring blade is communicated with and rotatably connected with the left end of the rotating shaft, and the second stirring blade is communicated with and rotatably connected with the right end of the rotating shaft;
the second bevel gear is fixedly connected with the right end of the first stirring blade and meshed with the first bevel gear;
the third bevel gear is fixedly connected with the left end of the second stirring blade and is tightly meshed with the first bevel gear;
the stirring rod is fixed at the upper end part of the sleeve rod;
and the rotating shaft is communicated with the hollow main shaft through the universal joint.
2. The cement mixing pile drill with the bidirectional rotation stirring blades as recited in claim 1, further comprising a fourth bevel gear and a screw, wherein the fourth bevel gear is disposed below the second bevel gear and the third bevel gear and is meshed with the second bevel gear and the third bevel gear, the screw is fixed at the bottom of the accommodating cavity, and the fourth bevel gear and the screw are rotatably disposed.
3. The cement mixing pile drill bit with the bi-directional rotation stirring blades as recited in claim 2, further comprising a housing and a first bearing, wherein the first bevel gear, the second bevel gear, the third bevel gear and the fourth bevel gear are all disposed in the housing, the two first bearings are disposed in the left and right through holes, respectively, and the housing and the sleeve rod are connected through the first bearings.
4. A mixing blade bi-directional rotation cement mixing pile bit as recited in claim 3, characterised in that said first, second, third and fourth conical gears are provided with gear washers in contact with said housing.
5. The cement mixing pile drill bit with the mixing blades rotating in two directions as recited in claim 1, wherein the first bevel gear is fixedly connected with the lower end portion of the hollow main shaft through a first connecting key, the second bevel gear is fixedly connected with the right end of the first mixing blade through a second connecting key, and the third bevel gear is fixedly connected with the left end of the second mixing blade through a third connecting key.
6. The cement mixing pile bit with bi-directional rotation of mixing blades as recited in claim 1, wherein said mixing blades are formed with mixing lugs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011605841.7A CN112726581B (en) | 2020-12-30 | 2020-12-30 | Cement mixing pile drill bit with bidirectional rotating mixing blades |
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| CN115874612B (en) * | 2023-01-29 | 2023-06-09 | 山西冶金岩土工程勘察有限公司 | Bidirectional cement soil mixing pile machine and drill bit |
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| JP3612204B2 (en) * | 1998-01-23 | 2005-01-19 | 日特建設株式会社 | Excavation stirrer for composite pile construction |
| CN106930702B (en) * | 2017-04-21 | 2023-08-11 | 浙江省水利水电勘测设计院有限责任公司 | Drill bit system of root-shaped mixing pile |
| CN207484463U (en) * | 2017-11-16 | 2018-06-12 | 丁碧江 | Deep mixer |
| CN208870533U (en) * | 2018-08-07 | 2019-05-17 | 中建海峡建设发展有限公司 | A kind of cement mixing pile drill bit |
| CN210087232U (en) * | 2019-06-25 | 2020-02-18 | 郑州新巨立业机械设备有限公司 | Double-stirring drill bit |
| CN110397028A (en) * | 2019-07-08 | 2019-11-01 | 罗红云 | Reverse agitating function transmission mechanism and device, two-way stirring drill bit, mixing pile machine and its application method |
| CN211922602U (en) * | 2020-03-09 | 2020-11-13 | 李芳慧 | Drilling tool for composite stirring cement stirring pile |
| CN111734312A (en) * | 2020-06-03 | 2020-10-02 | 陈腊根 | Double-wheel double-milling multi-stirring power head |
| CN111705791A (en) * | 2020-06-19 | 2020-09-25 | 江苏鸿基水源科技股份有限公司 | Double-wheel three-dimensional digging pile forming device |
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