WO2017016185A1

WO2017016185A1 - Material conveying seal box for cement mixing pile driver

Info

Publication number: WO2017016185A1
Application number: PCT/CN2016/000397
Authority: WO
Inventors: 周兆弟
Original assignee: 周兆弟
Priority date: 2015-07-27
Filing date: 2016-07-14
Publication date: 2017-02-02
Also published as: CN105019460B; CN105019460A

Abstract

A material conveying seal box for a cement mixing pile driver comprises a main seal box body (1), a main rod penetrating hole (11), at least two auxiliary rod penetrating holes (12), a main drill rod (2), auxiliary drill rods (3), a movable seal box body (4), and a main rod installation hole (41). At least two main rod conveying pipes (21) are provided in the main drill rod (2). At least two main rod feeding inlets (22) are provided on the movable seal box body (4), and a main rod feeding mechanism (5) is provided in the movable seal box body (4). At least two auxiliary rod conveying pipes (31) extending downwards in the axial direction are provided in each auxiliary drill rod (3). At least two auxiliary rod feeding inlets (32) are provided on the main seal box body (1), and an auxiliary rod feeding mechanism (6) is provided in the main seal box body (1).

Description

Feeding sealing box for cement soil mixing pile machine

Technical field

The invention belongs to the technical field of construction equipment, and in particular relates to a feed sealing box of a cement soil mixing pile machine.

Background technique

Cement-soil mixing pile is a method for reinforcing the low foundation of saturated soft clay. It uses cement as a curing agent, and uses a special mixing machine to forcibly stir the soft soil and the curing agent deep in the foundation, using the curing agent and soft soil. A series of physical and chemical reactions between the soft soils are hardened into a high-quality foundation with integrity, water stability and a certain strength. In order to reduce the resistance during drilling, the existing cement-soil mixing pile machine usually grouts and injects gas into the borehole during drilling. It is necessary to equip each drill pipe during construction. a feeding pipe through which a plurality of feeding mechanisms feed the conveying pipe so that the slurry or gas is delivered to the drill bit of the drill pipe, and each of the drill pipes requires a plurality of communication mechanisms to support when the plurality of drill pipes are operated. It is easy to cause uneven feeding of each drill pipe, and it is easy to cause insufficient slurry supply, which is easy to cause poor feeding, insufficient wetting of cement slurry during construction, increasing the difficulty of drilling, and at the same time, when the drill pipe is encountered, it is impossible to drill. When it is necessary to lift the drill pipe, it is necessary to upgrade the entire mechanism together with the drill pipe, which increases the construction cost.

In order to solve the problems existing in the prior art, people have conducted long-term exploration and proposed various solutions. For example, the Chinese patent document discloses a multi-tube slurry distributor and a stepless numerical control high-efficiency rotary jet cement soil mixing pile machine [application number: 201520065608.2], and the multi-tube slurry flow divider includes a jacket and a mandrel, and the mandrel is located in the outer casing. The shaft section is provided with N rubber sealing rings from top to bottom, N is greater than or equal to 2, and N rubber sealing rings separate the cavity between the mandrel and the outer casing into N-1 independent closed diverting cavities, each of which is divided into cavities Each of them is in communication with a supply pipe interspersed in the outer casing, and the mandrel is drilled with N-1 parallel flow-feeding split passages from the lower end face in the radial direction from the shaft section located in the outer casing. N-1 slurry split holes are drilled from top to bottom, and each slurry split hole is connected with the split flow chamber, and each slurry split hole is respectively connected with a corresponding slurry split flow channel, and the slurry split flow channel is connected with The hollow drill rods are connected. The above solution solves the problem that the existing cement-soil mixing pile machine can not transport the multiple slurry of the drill pipe to a certain extent, but the solution still exists: the slurry distribution is uneven, and the drill pipe needs to be connected to lift together when lifting. The problem of poor stability.

Summary of the invention

The object of the present invention is to provide a feed sealing case for a cement-soil mixing pile machine which is simple and reasonable in structure and cannot integrally lift the sealing box when the drill pipe is axially moved.

In order to achieve the above object, the present invention adopts the following technical solution: the delivery sealing box of the cement-soil mixing pile machine includes a main body sealing box body, wherein the main body sealing box body is provided with a main body in a vertical direction. a rod through hole and at least two auxiliary rod through holes, wherein the main rod through hole is provided with a main drill rod capable of circumferential rotation and axial reciprocating movement, and the auxiliary rod through hole is provided with a circumference a rotating and axially positioned auxiliary drill pipe, wherein the main body sealing box body is provided with a movable sealing box body, and a main rod mounting hole is arranged in a vertical direction in the movable sealing box body, and the main drill rod is worn Provided in the main rod mounting hole and axially positioned with the main rod mounting hole and circumferentially connected, the main drill rod is provided with at least two axially extending main rod conveying tubes, in the movable sealing box There are at least two main rod feeding ports for adding materials, and the movable sealing box body is provided with a main rod feeding mechanism capable of conveying materials to the main rod conveying pipe, and the auxiliary rods are arranged inside the auxiliary rods Having at least two secondary rod-shaped ducts extending axially downwards, in the main The housing is provided with at least two sealing for Tim The auxiliary rod feeding port of the material is added, and the main body sealing box body is provided with a sub-rod feeding mechanism capable of evenly distributing the material and conveying to the auxiliary rod conveying pipe in each sub-drill rod. The main drill pipe is slidably connected with the main body sealing box. When the drilling is incapable of drilling, the main drill pipe can be lifted several times, and the main drill pipe is fed through the movable sealing box, and the auxiliary drill pipe is sealed through the main body. The tank is supplied with material so that the main drill rod does not interfere with the main body sealed box when moving, and there is no need to raise the main body sealing box.

In the above-mentioned feed sealing case of the cement-soil mixing pile machine, the main rod feeding mechanism comprises at least two sets of split main rod sealing blocks which are superposed from top to bottom to form a movable sealing box, and the main rod enters The material inlets are respectively disposed on the split main rod sealing block, and each of the split main rod sealing blocks is formed by superposing the upper main rod sealing plate and the lower main rod sealing plate, the upper main rod sealing plate and the lower main rod A main rod conveying flow path connected to the main rod feeding port is disposed between the sealing plates, and the main rod conveying flow path is communicated with the main rod conveying tube through the main rod connecting structure. That is, the material is added to the main rod conveying flow passage through the main rod feeding port, and the main rod connecting structure conveys the material to the main rod conveying tube.

In the above-mentioned feed sealing case of the cement-soil mixing pile machine, the main rod communication structure includes a plurality of main rod sealing rings disposed in the main rod mounting holes and respectively corresponding to a split main rod sealing block, The main rod sealing ring has an annular main rod cavity communicating with the main rod conveying flow passage, and a plurality of main rod communication holes connected to the annular main rod cavity are radially disposed on the main drilling rod, and each main rod conveying tube is vertical The main direction of the main rod conveying pipe corresponds to one main rod communication hole, and the upper end of the main rod conveying pipe is connected to the main rod conveying flow path on the same horizontal plane through the main rod communication hole.

In the above-mentioned feed sealing case of the cement-soil mixing pile machine, the auxiliary rod feeding mechanism comprises at least two sets of split-type auxiliary rod sealing blocks which are superposed from top to bottom to form a main body sealing box body, and the auxiliary rod rods are inserted into The material inlets are respectively arranged on the split type auxiliary rod sealing block, and each of the split type auxiliary rod sealing blocks is formed by superposing the upper auxiliary rod sealing plate and the lower auxiliary rod sealing plate, and the upper auxiliary rod sealing plate and the lower auxiliary rod are formed. An auxiliary rod conveying flow path connected to the auxiliary rod feeding port is arranged between the sealing plates, wherein the auxiliary rod conveying flow passage is respectively connected with the auxiliary rod through-hole, and the auxiliary rod conveying flow passage is connected through the auxiliary rod The structure is in communication with the auxiliary rod conveying pipe.

In the above-mentioned feed sealing case of the cement-soil mixing pile machine, the auxiliary rod connecting structure includes a plurality of auxiliary rod sealing rings disposed in the auxiliary rod through-holes and respectively corresponding to a split-type auxiliary rod sealing block, The auxiliary rod sealing ring has a circular auxiliary rod cavity communicating with the auxiliary rod conveying flow passage, and a plurality of auxiliary rod connecting holes connected to the annular auxiliary rod cavity are radially disposed on the auxiliary drilling rod, and each auxiliary rod conveying tube is vertical The upper end of the auxiliary rod conveying pipe disposed at the center of the auxiliary drill pipe is beyond the remaining auxiliary rod conveying pipe, and each of the auxiliary rod conveying pipes respectively corresponds to one auxiliary rod connecting hole, and the upper end of the auxiliary rod conveying pipe is connected through the auxiliary rod The holes are connected to the secondary rod conveying channels on the same level.

In the above-mentioned feed sealing case of the cement-soil mixing pile machine, the lower auxiliary rod sealing plate has a plurality of cloth grooves each communicating with the auxiliary rod through-hole, and the upper auxiliary rod sealing plate and the lower auxiliary rod are sealed. When the plates are joined together, the upper auxiliary rod sealing plate can close the upper end of the cloth groove to form the above-mentioned auxiliary rod conveying flow path.

In the above-mentioned feed sealing case of the cement-soil mixing pile machine, the cloth groove includes a main groove disposed between any two auxiliary rod through-holes and arranged in parallel with each other, and the main groove is connected The main groove is connected to the auxiliary rod through hole through a plurality of diverting grooves, and the main groove and the diverting groove are arranged in a grid shape. The structure can uniformly distribute the materials into the through holes of the auxiliary rods, so that the feeds in the respective auxiliary drill pipes are uniform.

In the above-mentioned feed sealing case of the cement-soil mixing pile machine, the upper auxiliary rod sealing plate and the lower auxiliary rod sealing plate are connected by a detachable structure, and the upper auxiliary rod sealing plate and the lower auxiliary rod sealing plate are A sealing structure is provided between the cloth groove and the auxiliary rod through hole, and the sealing structure comprises a lower auxiliary rod sealing plate and is disposed on the cloth concave A sealing strip on both sides of the groove and the circumferential outer periphery of the auxiliary rod through hole, the upper auxiliary rod sealing plate is provided with a sealing step, and the lower auxiliary sealing plate is provided with a sealing groove corresponding to the sealing step. The use of this structure makes it difficult to cause leakage during material transportation.

In the above-mentioned cement sealing box of the cement-soil mixing pile machine, the main body sealing box further comprises an upper sealing seat and a lower sealing seat correspondingly disposed above and below, and the split-type auxiliary rod sealing blocks are all disposed on the upper sealing. A sealing hole is disposed between the seat and the lower sealing seat, and the upper sealing seat and the lower sealing seat are disposed concentrically with the auxiliary rod through hole, and the bearing and the annular sealing ring are disposed in the sealing hole. Improve the installation stability of the main body sealed box.

In the above-mentioned feed sealing case of the cement-soil mixing pile machine, the main rod through hole and the auxiliary rod through hole are not located on the same straight line, any one of the main rod through holes and any two of the main rod through holes The sub-rod through holes not located on the same straight line are sequentially connected to form a triangular structure. The main rod through hole and the auxiliary rod through hole provided by the distribution enable a single square drill hole to be drilled in a single time, and the pile drill machine is not required to be repeatedly drilled, thereby saving cost.

Compared with the prior art, the advantage of the feed sealing box of the cement-soil mixing pile machine is that the slurry is evenly distributed, and the drill rod does not need to be lifted together with the distributor when lifting, and can be simultaneously applied to multiple drill rods during construction. The conveying pipe carries the additive transportation, and the feeding is smooth, the additive in the conveying pipe in each drill pipe is evenly distributed, the feeding is uniform, and the feeding shortage is not easy, the drilling difficulty is reduced, and the cross-section can be drilled in a single time. Large holes.

DRAWINGS

Figure 1 is a schematic view showing the structure in the state of use of the present invention.

Figure 2 is an enlarged view of a portion A in Figure 1.

Figure 3 is an enlarged view of B in Figure 1.

Figure 4 is a schematic view showing the structure of the movable sealing case in the present invention.

Figure 5 is a schematic view showing the structure of a main drill pipe in the present invention.

Figure 6 is a schematic view showing the structure of a lower main rod sealing plate which is provided with a secondary drill pipe in the present invention.

Figure 7 is an exploded view of the split type secondary rod sealing block of the present invention.

In the figure, the main body sealing box body 1, the main rod through hole 11, the sub rod through hole 12, the sealing hole 13, the bearing 14, the annular sealing ring 15, the main drill pipe 2, the main rod conveying pipe 21, the main rod feeding port 22, the auxiliary drill pipe 3, the auxiliary pipe conveying pipe 31, the auxiliary pipe feeding port 32, the movable sealing box 4, the main rod mounting hole 41, the main rod feeding mechanism 5, the split main rod sealing block 51, the upper main rod sealing Plate 511, lower main rod sealing plate 512, main rod conveying flow passage 52, main rod sealing ring 53, annular main rod cavity 531, main rod communication hole 54, sub-rod feeding mechanism 6, split sub-bar sealing block 61, The upper sub-bar sealing plate 611, the lower sub-rod sealing plate 612, the sub-rod conveying flow path 62, the sub-rod sealing ring 63, the annular sub-bar cavity 631, the sub-rod communication hole 64, the cloth groove 65, the main groove 651, The split groove 652, the weather strip 66, the sealing step 67, the seal groove 68, the upper seal seat 7, and the lower seal seat 8.

detailed description

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

As shown in FIG. 1-7, the feed sealing case of the cement-soil mixing pile machine includes a main body sealing box body 1. The main body sealing box body 1 is provided with a main rod through hole 11 and at least two pairs in the vertical direction. a rod through hole 12, a main drill rod 2 capable of circumferentially rotating and axially reciprocatingly passing through the main rod through hole 11, and a sub-drill rod capable of circumferentially rotating and axially positioning is disposed in the auxiliary rod through hole 12 3. The movable sealing box body 4 is disposed above the main body sealing box body 1, and the main rod mounting hole 41 is disposed in the vertical direction in the movable sealing box body 4, and the main drilling rod 2 is disposed in the main rod mounting hole 41 and Axial positioning with the main rod mounting hole 41 And the circumferential rotation is connected, the main drill rod 2 is provided with at least two axially downwardly extending main rod conveying pipes 21, and at least two main rod feeding ports for adding materials are arranged on the movable sealing box 4. 22, and the movable sealing box 4 is provided with a main rod feeding mechanism 5 capable of conveying the material to the main rod conveying pipe 21, and the auxiliary drilling rod 3 is provided with at least two auxiliary rod conveying tubes 31 extending axially downward. At least two auxiliary rod feeding ports 32 for adding materials are disposed on the main body sealing box body 1, and the main body sealing box body 1 is provided with an even distribution material and is delivered to each of the auxiliary drill rods 3 The auxiliary rod feeding mechanism 6 of the auxiliary rod conveying pipe 31, wherein the main drilling rod 2 is slidably connected with the main body sealing box body 1, and the main drilling rod 2 can be lifted several times when the drilling is incapable of drilling, and the main drilling rod 2 feeding through the movable sealing box 4, the auxiliary drill pipe 3 is fed through the main body sealing box 1, so that the main drill rod 2 does not interfere with the main body sealing box 1 when moving, and it is not necessary to lift the main body sealing box 1 .

Specifically, as shown in FIG. 1-5, the main rod feeding mechanism 5 in this embodiment includes at least two sets of split main rod sealing blocks 51 which are stacked from top to bottom to form a movable sealing box 4, and the main rod feeding port 22 are respectively disposed on the split main rod sealing block 51, and each of the split main rod sealing blocks 51 is formed by superposing the upper main rod sealing plate 511 and the lower main rod sealing plate 512, and the upper main rod sealing plate 511 and the lower main A main rod conveying flow path 52 connected to the main rod feeding port 22 is provided between the rod sealing plates 512, and the main rod conveying flow path 52 communicates with the main rod conveying pipe 21 through the main rod communication structure. That is, the material is added to the main rod conveying flow passage through the main rod feeding port, and the main rod connecting structure conveys the material to the main rod conveying tube. The main rod communication structure includes a main rod sealing ring 53 disposed in the main rod mounting hole 41 and corresponding to a split main rod sealing block 51. The main rod sealing ring 53 has a main rod conveying flow path 52 therein. a continuous annular main rod cavity 531, a plurality of main rod communication holes 54 connected to the annular main rod cavity 531 are radially disposed on the main drill rod 2, and each main rod conveying tube 21 is disposed in a vertical direction and each main The rod conveying pipes 21 respectively correspond to one main rod communication hole 54, and the upper end of the main rod conveying pipe 21 is connected to the main rod conveying flow path 52 on the same horizontal plane through the main rod communication hole 54.

Further, as shown in FIGS. 1-3 and 6-7, the auxiliary rod feeding mechanism 6 in the present embodiment includes at least two sets of split type auxiliary rod sealing blocks 61 which are superposed from top to bottom to form the main body sealing case 1. The auxiliary rod feeding ports 32 are respectively disposed on the split type auxiliary rod sealing block 61, and each of the split type auxiliary rod sealing blocks 61 is formed by superposing the upper auxiliary rod sealing plate 611 and the lower auxiliary rod sealing plate 612, and the upper auxiliary rod sealing plate is sealed. An auxiliary rod conveying flow path 62 connected to the auxiliary rod feeding port 32 is disposed between the plate 611 and the lower auxiliary rod sealing plate 612, and the auxiliary rod conveying flow path 62 communicates with the auxiliary rod through hole 12, respectively, and the auxiliary rod conveying flow is provided. The passage 62 communicates with the sub-rod conveying pipe 31 through the sub-rod communication structure. The sub-bar communication structure includes a plurality of sub-rod seals 63 disposed in the sub-rod through-holes 12 and corresponding to a split-type sub-rod seal block 61. The sub-rod seal ring 63 has a sub-rod transfer passage 62 therein. a communicating annular auxiliary rod cavity 631, a plurality of auxiliary rod communicating holes 64 connected to the annular auxiliary rod cavity 631 are radially disposed on the auxiliary drill pipe 3, and each of the auxiliary rod conveying pipes 31 is disposed in a vertical direction and is located at the vice The upper end of the auxiliary rod conveying pipe 31 at the center of the drill pipe 3 exceeds the remaining auxiliary rod conveying pipe 31, and each of the auxiliary rod conveying pipes 31 corresponds to one auxiliary rod communicating hole 64, and the upper end of the auxiliary rod conveying pipe 31 is located through the auxiliary rod connecting hole 64 The secondary rod conveying flow paths 62 on the same level are connected.

Preferably, the lower auxiliary rod sealing plate 612 in the embodiment has a plurality of cloth grooves 65 each communicating with the auxiliary rod through holes 12, and the upper auxiliary rod sealing plate 611 and the lower auxiliary rod sealing plate 612 are joined together. The sub-bar sealing plate 611 can close the upper end of the cloth groove 65 to form the above-described sub-rod conveying flow path 62. The cloth groove 65 in this embodiment includes a main groove 651 disposed between any two auxiliary rod through holes 12 and arranged in parallel with each other. The main groove 651 is connected with the auxiliary rod feeding port 32, and the main groove The 651 is connected to the auxiliary rod through hole 12 through a plurality of split grooves 652, and the main groove 651 and the split groove 652 are distributed in a grid shape, and the structure can uniformly distribute the materials into the respective auxiliary rod through holes 12, The feed in each auxiliary drill pipe 3 is made uniform.

Further, the upper sub-bar sealing plate 611 and the lower sub-rod sealing plate 612 in this embodiment pass the detachable knot. The structure is connected, and a sealing structure capable of circumferentially sealing the cloth groove 65 and the auxiliary rod through hole 12 is disposed between the upper auxiliary rod sealing plate 611 and the lower auxiliary rod sealing plate 612. The sealing structure includes a lower auxiliary rod sealing plate 612. a sealing strip 66 on both sides of the fabric groove 65 and the circumferential periphery of the sub-rod through hole 12, the upper sub-bar sealing plate 611 is provided with a sealing step 67, and the lower sub-bar sealing plate 612 is provided with a sealing step 67 Corresponding sealing groove 68, this can prevent leakage during material conveying. In order to improve the structural strength of the main body sealing box 1, the main body sealing box 1 herein further includes an upper sealing seat 7 and a lower sealing seat 8 correspondingly disposed above and below, and the split sub-bar sealing blocks 61 are disposed on the upper sealing seat 7 A sealing hole 13 is disposed between the upper sealing seat 8 and the lower sealing seat 8 and is disposed concentrically with the auxiliary rod through hole 12, and the bearing 14 and the annular sealing ring 15 are disposed in the sealing hole 13. In addition, the main rod through hole 11 and the sub rod through hole 12 are not located on the same straight line, and any one of the main rod through holes 11 and any two auxiliary rods not on the same line as the main rod through hole 11 are penetrated. The holes 12 are sequentially connected to form a triangular structure, and the main rod through holes 11 and the auxiliary rod through holes 12 which are arranged in this kind are arranged to make a single square drill hole can be drilled in a single time, and it is no longer necessary to move the pile machine to perform repeated drilling, thereby saving cost.

The specific embodiments described herein are merely illustrative of the spirit of the invention. A person skilled in the art can make various modifications or additions to the specific embodiments described or in a similar manner, without departing from the spirit of the invention or as defined by the appended claims. The scope.

Although the body sealing case 1, the main rod through hole 11, the sub rod through hole 12, the sealing hole 13, the bearing 14, the annular seal 15, the main drill rod 2, the main rod conveying pipe 21, and the main Rod feed port 22, auxiliary drill pipe 3, auxiliary rod transfer pipe 31, auxiliary rod feed port 32, movable sealing case 4, main rod mounting hole 41, main rod feeding mechanism 5, split main rod sealing block 51, Upper main rod sealing plate 511, lower main rod sealing plate 512, main rod conveying flow passage 52, main rod sealing ring 53, annular main rod cavity 531, main rod communication hole 54, sub rod feeding mechanism 6, split sub rod Sealing block 61, upper sub-bar sealing plate 611, lower sub-rod sealing plate 612, sub-rod conveying flow path 62, sub-rod sealing ring 63, annular sub-bar cavity 631, sub-bar communication hole 64, cloth groove 65, main The terms recess 651, shunt groove 652, seal 66, seal step 67, seal groove 68, upper seal seat 7, lower seal seat 8, etc., do not preclude the possibility of using other terms. These terms are only used to describe and explain the nature of the invention more conveniently; it is to be construed that any additional limitation is inconsistent with the spirit of the invention.

Claims

A feed sealing box for a cement-soil mixing pile machine, comprising a main body sealing box body (1), characterized in that: a main rod through hole is arranged in the vertical direction of the main body sealing box body (1) (11) And at least two auxiliary rod through holes (12), wherein the main rod through hole (11) is provided with a main drill rod (2) capable of circumferential rotation and axial reciprocating movement, the auxiliary rod running through An auxiliary drill rod (3) capable of circumferential rotation and axial positioning is disposed in the hole (12), and the movable sealing box body (4) is arranged above the main body sealing box body (1) in the movable sealing box body (4) The main rod mounting hole (41) is disposed in the vertical direction, and the main drill rod (2) is disposed in the main rod mounting hole (41) and axially connected to the main rod mounting hole (41) Positioned and circumferentially rotatably connected, the main drill rod (2) is provided with at least two axially downwardly extending main rod conveying pipes (21), and at least two are arranged on the movable sealing box (4) a main rod feeding port (22) for adding material, and the movable sealing box (4) is provided with a main rod feeding mechanism (5) capable of conveying the material to the main rod conveying tube (21), The auxiliary drill pipe (3) is provided with at least two auxiliary rods extending axially downward The conveying pipe (31) is provided with at least two auxiliary rod feeding ports (32) for adding materials on the main body sealing box body (1), and the main body sealing box body (1) is provided with The material is evenly distributed and delivered to the secondary rod feeding mechanism (6) of the secondary rod conveying pipe (31) in each secondary drill pipe (3).
A feed sealing case for a cement-soil mixing pile machine according to claim 1, wherein said main rod feeding mechanism (5) comprises at least two groups of superposed upper and lower portions to form a movable sealed box (4). a split main rod sealing block (51), the main rod feeding ports (22) are respectively arranged on the split main rod sealing block (51), and each split main rod sealing block (51) is provided by the upper main The rod sealing plate (511) is superposed with the lower main rod sealing plate (512), and the main rod sealing plate (511) and the lower main rod sealing plate (512) are provided with the main rod feeding port ( 22) The connected main rod conveying flow path (52), and the main rod conveying flow path (52) communicates with the main rod conveying pipe (21) through the main rod communication structure.
The feed sealing case of the cement-soil mixing pile machine according to claim 2, wherein the main rod communication structure comprises a plurality of main rod mounting holes (41) and corresponding to a split main rod seal a main rod sealing ring (53) of the block (51), the main rod sealing ring (53) having an annular main rod cavity (531) communicating with the main rod conveying flow path (52), in the main drilling rod (2) a plurality of main rod communication holes (54) connected to the annular main rod cavity (531) are arranged in the radial direction, and each main rod conveying tube (21) is dislocated in the vertical direction and each main rod conveying tube (21) Corresponding to one main rod communication hole (54), respectively, and the upper end of the main rod conveying pipe (21) is connected to the main rod conveying flow path (52) on the same horizontal plane through the main rod communication hole (54).
The material conveying sealing box of the cement-soil mixing pile machine according to claim 1 or 2 or 3, wherein the auxiliary rod feeding mechanism (6) comprises at least two groups of superposed upper and lower layers to form a main body sealing box body. (1) a split type auxiliary rod sealing block (61), wherein the auxiliary rod feeding ports (32) are respectively disposed on the split type auxiliary rod sealing block (61), and each of the split type auxiliary rod sealing blocks (61) The upper auxiliary rod sealing plate (611) and the lower auxiliary rod sealing plate (612) are superposed, and the upper auxiliary rod sealing plate (611) and the lower auxiliary rod sealing plate (612) are provided with the auxiliary rod. The auxiliary rod conveying flow path (62) connected to the feeding port (32), the auxiliary rod conveying flow path (62) is respectively connected with the auxiliary rod through hole (12), and the auxiliary rod conveying flow path ( 62) communicating with the auxiliary rod conveying pipe (31) through the auxiliary rod communication structure.
The material conveying sealing box of the cement-soil mixing pile machine according to claim 4, wherein the auxiliary rod connecting structure comprises a plurality of sub-rod through holes (12) and corresponding to a split type auxiliary rod seal a secondary rod seal (63) of the block (61), the secondary rod seal (63) having an annular secondary rod cavity (631) in communication with the secondary rod delivery flow path (62), in the secondary drill rod (3) a plurality of auxiliary rod communication holes (64) connected to the annular auxiliary rod cavity (631) are arranged in the radial direction, and each of the auxiliary rod conveying tubes (31) is dislocated in the vertical direction and located at the center of the auxiliary drill rod (3) The upper end of the auxiliary rod conveying pipe (31) exceeds the remaining auxiliary rod conveying pipe (31), and each of the auxiliary rod conveying pipes (31) respectively corresponds to one auxiliary rod connecting hole (64), and the auxiliary rod conveying pipe (31) The upper end is connected to the sub-rod conveying flow path (62) on the same horizontal plane through the sub-bar communication hole (64).
A feed sealing case for a cement-soil mixing pile machine according to claim 5, wherein said lower sub-rod sealing plate (612) has a plurality of cloth recesses communicating with the sub-rod through holes (12). a groove (65), and the upper sub-bar sealing plate (611) and the lower sub-bar sealing plate (612) are mutually joined together, and the upper sub-bar sealing plate (611) can close the upper end of the cloth groove (65) to form the above-mentioned auxiliary rod Conveying flow path (62).
The material conveying sealing box of the cement-soil mixing pile machine according to claim 6, wherein the cloth groove (65) is disposed between any two auxiliary rod through holes (12) and arranged in parallel with each other. a main groove (651), the main groove (651) is connected with a sub-rod feed port (32), and the main groove (651) passes through a plurality of split grooves (652) and a sub-rod through hole (12) are connected, and the main groove (651) and the split groove (652) are arranged in a grid shape.
A feed sealing case for a cement-soil mixing pile machine according to claim 6, wherein said upper sub-bar sealing plate (611) and said lower sub-rod sealing plate (612) are connected by a detachable structure, and A sealing structure capable of circumferentially sealing the cloth groove (65) and the auxiliary rod through hole (12) between the upper auxiliary rod sealing plate (611) and the lower auxiliary rod sealing plate (612) is provided. The structure comprises a sealing strip (66) disposed on the lower sub-rod sealing plate (612) and located on both sides of the fabric groove (65) and the circumferential periphery of the sub-rod through hole (12), the upper sub-rod sealing plate (611) A sealing step (67) is provided on the lower sub-bar sealing plate (612), and a sealing groove (68) corresponding to the sealing step (67) is provided.
The material conveying sealing box of the cement-soil mixing pile machine according to claim 4, wherein the main body sealing box body (1) further comprises an upper sealing seat (7) and a lower sealing seat (8) correspondingly disposed above and below. The split type auxiliary rod sealing block (61) is disposed between the upper sealing seat (7) and the lower sealing seat (8), and the upper sealing seat (7) and the lower sealing seat (8) The upper part is provided with a sealing hole (13) concentrically arranged with the auxiliary rod through hole (12), and the sealing hole (13) is provided with a bearing (14) and an annular sealing ring (15).
The feed sealing case of the cement-soil mixing pile machine according to claim 1, wherein the main rod through hole (11) and the auxiliary rod through hole (12) are not on the same straight line, any one of the main The rod through hole (11) and any two auxiliary rod through holes (12) not in line with the main rod through hole (11) are sequentially connected to form a triangular structure.