CN214577006U

CN214577006U - Telescopic revolution frame for ultra-large diameter full-section shaft drilling machine

Info

Publication number: CN214577006U
Application number: CN202120189858.2U
Authority: CN
Inventors: 赵智峰; 苗军克; 崔郎郎; 简海峰; 孟永红; 赵大帅; 张晓明; 赵凯; 赵红红
Original assignee: CITIC Heavy Industries Co Ltd
Current assignee: CITIC Heavy Industries Co Ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-11-02
Anticipated expiration: 2031-01-25

Abstract

The utility model relates to the technical field of shaft tunneling construction equipment, in particular to a telescopic revolution frame for a super-large diameter full-section shaft drilling machine, which comprises an intermediate frame, a revolution beam, a telescopic beam, a connecting beam and a driving box, wherein a plurality of revolution beams which are radially arranged are arranged at even intervals along the circumferential direction of the intermediate frame, one end of the revolution beam is detachably connected with the intermediate frame, the other end of the revolution beam is movably connected with one end of the telescopic beam, the other end of the telescopic beam is correspondingly provided with the driving box and a cutter head, under the action of a driving device, the telescopic beam can drive the driving box and the cutter head to move back and forth along the axial direction of the corresponding revolution beam, the connecting beam is respectively arranged between the adjacent revolution beams, the driving box and the cutter head are arranged between the middle part of the connecting beam and the intermediate frame, the excavation diameter is variable through the telescopic beam expansion, and the telescopic beam can adapt to the synchronous sinking process of prefabricated well walls with different wall thicknesses, and six-point synchronous excavation is supported, and the large-diameter full-section excavation can be carried out by using a small cutter head in cooperation with the whole revolution.

Description

Telescopic revolution frame for ultra-large diameter full-section shaft drilling machine

Technical Field

The utility model belongs to the technical field of shaft tunnelling construction equipment technique and specifically relates to a telescopic revolution frame that is used for full section shaft rig of super large diameter.

Background

In recent years, with the rapid development of national economy, underground projects such as urban underground space development and urban underground pipe gallery construction are increasingly popularized, and further higher requirements are provided for construction equipment, particularly certain underground projects require that the excavation diameter is very large, but the excavation diameter of a vertical shaft drilling machine with the largest diameter in China only reaches 13 meters at present, and drilling machines of ultra-large vertical shafts with the diameter exceeding 20 meters are rare in the world, on one hand, as most underground projects are constructed in urban dense places, the field is narrow, the excavation equipment of the ultra-large vertical shafts is too large, and the manufacturing, assembling, transporting and constructing are difficult; on the other hand, the diameter of the vertical shaft is large, the excavation engineering quantity is large, the efficiency is low, the construction excavation time is long, the fast-paced requirement of modern construction cannot be met, and meanwhile, the risk of preventing and controlling the settlement of the surrounding stratum and the building is increased along with the increase of the diameter of the vertical shaft.

Disclosure of Invention

In order to solve the problem among the background art, the utility model discloses a telescopic revolution frame for full section shaft rig of super large diameter, the excavation hole footpath can be adjusted, modular structure, and installation transportation is convenient, and excavation efficiency is high, realizes the full section excavation of super large diameter shaft more than 20 meters.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a telescopic revolution frame for full section shaft drill of super large diameter, including intermediate frame, revolution roof beam, flexible roof beam, tie-beam and drive case, the vertical setting of intermediate frame, be equipped with a plurality of revolution roof beams that are radial setting along the even interval of circumference of intermediate frame, revolution roof beam one end can be dismantled with the intermediate frame and be connected, the revolution roof beam other end and the one end swing joint of flexible roof beam, the other end correspondence of flexible roof beam is provided with drive case and blade disc, under drive arrangement's effect, flexible roof beam can drive case and blade disc along the axial back-and-forth movement of corresponding revolution roof beam, be provided with the tie-beam between adjacent revolution roof beam respectively, be provided with drive case and blade disc between tie-beam middle part and intermediate frame.

Furthermore, one end of the telescopic beam is embedded in the revolution beam, a plurality of slideways are arranged on the inner side surface of the revolution beam at intervals, the slideways respectively extend along the axial direction of the revolution beam, and the telescopic beam can slide back and forth along the slideways under the action of the telescopic oil cylinder.

Furthermore, a plurality of swing pairs are arranged between the telescopic beam and the revolution beam, each swing pair comprises a seat plate and a swing block, the seat plate is fixedly connected with the telescopic beam, a groove matched with the swing block is formed in the middle of the seat plate, the axial direction of the groove is perpendicular to the telescopic direction of the telescopic beam, the swing block is arranged in the groove, two ends of the swing block are rotatably connected with end plates at two ends of the seat plate through pin shafts respectively, the swing block is of a semi-cylindrical structure, an arc surface of the swing block is in contact with the groove, a plane of the swing block, which is opposite to the arc surface, is in sliding contact with the inner side surface of the revolution beam, and a sealing ring is arranged between the edges of the contact surfaces of the swing block and the seat plate.

Furthermore, the outer end of the telescopic beam is of a variable cross-section structure.

Furthermore, flanges are respectively connected between the middle frame and the revolution beam, between the telescopic beam and the driving box and between the connecting beam and the revolution beam.

Furthermore, flanges are respectively arranged between the telescopic beam and the driving box and between the connecting beam and the revolution beam.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model has the advantages that the middle frame is connected with six driving boxes and the cutter head, supports six-point synchronous excavation, and is matched with the whole revolution, so that the ultra-large diameter full-section excavation can be carried out by utilizing the small cutter head;

2. the utility model realizes the variable diameter of the excavated hole by the expansion of the expansion beam in the frame, and can adapt to the synchronous open caisson process of the prefabricated well wall with different wall thicknesses;

3. the utility model discloses in being connected with the swing pair between revolution roof beam and the flexible roof beam, the swing pair be fixed in on the flexible roof beam and with revolution between the roof beam for the face contact, the swing pair can be according to load big or small direction, the self-adaptation swing, swing piece contact surface atress is even, can bear bigger alternating load, it is even to have guaranteed that the atress is even between flexible roof beam and the revolution roof beam, removes smoothly.

Drawings

Fig. 1 is a schematic top view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view B-B of FIG. 2;

FIG. 4 is an enlarged view of portion P of FIG. 2;

FIG. 5 is a schematic view of the swing pair structure of the present invention;

FIG. 6 is a cross-sectional view C-C of FIG. 5;

FIG. 7 is a cross-sectional view D-D of FIG. 5;

in the above figures: 1-a middle frame; 2-revolution beam; 3, a telescopic oil cylinder; 4-a telescopic beam; 5-connecting the beams; 6-driving the box; 7-a cutter head; 8-a swing pair; 9-connecting bolts; 10-a seat board; 11-a swing block; 12-a sealing ring; 13-a platen; 14-a pin shaft; 15-an end plate; 16-fixing the bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

With reference to the attached drawings 1-4, the telescopic revolution frame for the super-large diameter full-section shaft drilling machine of the utility model is elaborated in detail, which comprises an intermediate frame 1, a revolution beam 2, a telescopic beam 4, a connecting beam 5 and a driving box 6, wherein the intermediate frame 1 is vertically arranged, four revolution beams 2 which are radially arranged are uniformly arranged along the circumference of the intermediate frame 1 at intervals, one end of each revolution beam 2 is connected with the intermediate frame 1 through a connecting bolt, the other end of each revolution beam 2 is movably connected with one end of the telescopic beam 4, it is required to be explained here that an inside and outside nesting mode is preferably adopted between the telescopic beam 4 and the revolution beam 2, the sections of the telescopic beam 4 and the revolution beam 2 are respectively of a rectangular structure, one end of the telescopic beam 4 is embedded in the revolution beam 2, a plurality of slideways are arranged at intervals on the inner side surface of the revolution beam 2, the slideways respectively extend along the axial direction of the revolution beam 2, the other end of the telescopic beam 4 is correspondingly provided with the driving box 6 and 7, the outer end of the telescopic beam 4 is of a variable cross-section structure, which is suitable for gradual load change from outside to inside, one end of a telescopic oil cylinder 3 is connected with the middle frame 1, the other end is connected with the telescopic beam 4, the telescopic oil cylinder 3 telescopically drives the telescopic beam 4 to move back and forth along the axial direction of the revolution beam 2, under the action of the telescopic oil cylinder 3, the telescopic beam 4 can drive a driving box 6 and a cutter head 7 to move back and forth along the axial direction of the corresponding revolution beam 2, a connecting beam 5 is respectively arranged between the adjacent revolution beams 2, a driving box 6 and a cutter head 7 are respectively arranged between the middle part of the connecting beam 5 and the middle frame 1 which are oppositely arranged, two driving boxes 6 arranged between the connecting beam 5 and the middle frame 1 are arranged at an inner ring, four driving boxes 6 connected with the four telescopic beams 4 are arranged at an outer ring, the six driving boxes and the cutter head are divided into an inner group and an outer group, the six driving boxes and the cutter head can rotate around the center at the same time, and form full coverage of the whole excavation section after rotation, the middle frame 1 and the revolution beam 2, the telescopic beam 4 and the driving box 6, the connecting beam 5 and the revolution beam 2 are connected through flange handles respectively, the flanges between the telescopic beam 4 and the driving box 6 and between the connecting beam 5 and the revolution beam 2 are provided with rabbets respectively, the rabbets are arranged between the flanges to bear vertical tangential force, the telescopic beam 4 is telescopic to realize that the diameter of the excavated hole is variable, and the synchronous open caisson process can adapt to the prefabricated well walls with different wall thicknesses.

The structure of the swing pair 8 is described in detail with reference to the attached drawings 5-7, a plurality of swing pairs 8 are arranged between the telescopic beam 4 and the revolution beam 2, grooves are processed on the telescopic beam 4 and used for mounting the swing pairs 8, the groove structure can prevent a fixing bolt from being damaged by shearing when the swing pairs 8 slide back and forth, and four full-length slideway surfaces are processed on the inner side surface of the revolution beam 2 along the axial direction so that the telescopic beam 4 can slide back and forth along the slideways; the swing pair 8 is in surface contact with the sliding surface of the revolution beam 2, sliding friction is formed between the swing pair 8 and the inner side surface of the revolution beam 2 when the swing pair 8 slides back and forth, the swing pair 8 comprises a seat plate 10 and a swing block 11, the seat plate 10 is fixedly connected with the telescopic beam 4, a groove matched with the swing block 11 is arranged in the middle of the seat plate 10, the axial direction of the groove is vertical to the telescopic direction of the telescopic beam 4, the swing block 11 is arranged in the groove, two ends of the swing block 11 are respectively in rotary connection with end plates 15 at two ends of the seat plate 10 through pin shafts 14, the blocking phenomenon when the telescopic beam 4 moves back and forth is prevented, the swing block 11 is in a semi-cylindrical structure, the arc surface of the swing block 11 is in contact with the groove, the plane of the swing block 11 opposite to the arc surface is in sliding contact with the inner side surface of the revolution beam 2, the cylindrical surface is in contact between the swing block 11 and the seat plate 10, and the swing block 11 can swing adaptively according to the stressed deformation of the telescopic beam 4 and the revolution beam 2, and the relatively large contact surface is always ensured between the swing block and the revolution beam 2, so that stress concentration is avoided, a sealing ring 12 is arranged between the edges of the contact surfaces of the swing block 11 and the seat plate 10, foreign materials such as external silt are prevented from entering the sliding surface, the sealing ring 12 is fixed on the seat plate 10 through a fixing bolt, and the head of the fixing bolt is also sleeved with a pressing plate 13.

A concrete working method that is used for telescopic revolution frame mechanism of full section shaft rig of super large diameter: when the equipment enters a wellhead, the telescopic beam 4 of the revolution frame drives the driving box 6 to retract, and the equipment smoothly enters a well in a minimum radius state; before excavation, the telescopic beam 4 extends out, the cutter head 7 reaches a specified size, and the equipment is vertically lowered by gravity, and meanwhile, vertical shaft excavation is carried out in a mode of rotation and revolution of the cutter head; during excavation, the swinging pair 8 structure between the telescopic beam 4 and the revolution beam 2 can bear the huge impact force caused by excavation; when the excavation is carried out, the prefabricated well wall is synchronously lowered, the excavation section collapse is protected or the settlement of the peripheral stratum is prevented, and when the well wall is difficult to settle, the telescopic beam can extend out by 100-200 mm again to carry out expanding excavation so as to be beneficial to the settlement of the well wall; after the excavation reaches the specified depth, the telescopic beam 4 is retracted, and the mechanism reaches the minimum state, so that the prefabricated well wall can be smoothly excavated and disassembled.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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, and any reference signs in the claims are not intended to 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

1. The utility model provides a telescopic revolution frame for full section shaft rig of super large diameter, characterized by: the rotary type drilling machine comprises an intermediate frame, a plurality of rotary beams, telescopic beams, connecting beams and a driving box, wherein the intermediate frame is vertically arranged, the plurality of rotary beams which are radially arranged are uniformly arranged at intervals along the circumferential direction of the intermediate frame, one end of each rotary beam is detachably connected with the intermediate frame, the other end of each rotary beam is movably connected with one end of each telescopic beam, the other end of each telescopic beam is correspondingly provided with the driving box and a cutter head, the telescopic beams can drive the driving box and the cutter heads to move back and forth along the axial direction of the corresponding rotary beams under the action of a driving device, the connecting beams are respectively arranged between the adjacent rotary beams, and the driving box and the cutter heads are arranged between the middle parts of the connecting beams and the intermediate frame.

2. The telescopic revolution frame for the ultra-large diameter full-face shaft drilling machine as claimed in claim 1, is characterized in that: one end of the telescopic beam is embedded in the revolution beam, a plurality of slideways are arranged on the inner side surface of the revolution beam at intervals, the slideways respectively extend along the axial direction of the revolution beam, and the telescopic beam can slide back and forth along the slideways under the action of the telescopic oil cylinder.

3. The telescopic revolution frame for the ultra-large diameter full-face shaft drilling machine as claimed in claim 2, is characterized in that: the swing pair comprises a seat plate and a swing block, the seat plate is fixedly connected with the telescopic beam, a groove matched with the swing block is formed in the middle of the seat plate, the axial direction of the groove is perpendicular to the telescopic direction of the telescopic beam, the swing block is arranged in the groove, two ends of the swing block are respectively connected with end plates at two ends of the seat plate in a rotating mode through pin shafts, the swing block is of a semi-cylindrical structure, an arc surface of the swing block is in contact with the groove, a plane of the swing block, opposite to the arc surface, is in sliding contact with the inner side surface of the revolution beam, and a sealing ring is arranged between the edges of the contact surfaces of the swing block and the seat plate.

4. The telescopic revolution frame for the ultra-large diameter full-face shaft drilling machine as claimed in claim 3, is characterized in that: the outer end of the telescopic beam is of a variable cross-section structure.

5. The telescopic revolution frame for the ultra-large diameter full-face shaft drilling machine as claimed in claim 3, is characterized in that: the middle frame and the revolution beam, the telescopic beam and the driving box, and the connecting beam and the revolution beam are respectively connected through flanges.

6. The telescopic revolution frame for the ultra-large diameter full-face shaft drilling machine as claimed in claim 5, is characterized in that: flanges are respectively arranged between the telescopic beam and the driving box and between the connecting beam and the revolution beam.