CN214997666U

CN214997666U - TBM cutter head and TBM heading machine

Info

Publication number: CN214997666U
Application number: CN202120700331.1U
Authority: CN
Inventors: 于庆增; 宁向可; 齐志冲; 张喜冬; 鲁义强; 徐文静
Original assignee: China Railway Engineering Equipment Group Co Ltd CREG
Current assignee: China Railway Engineering Equipment Group Co Ltd CREG
Priority date: 2021-04-07
Filing date: 2021-04-07
Publication date: 2021-12-03
Anticipated expiration: 2031-04-07

Abstract

The utility model provides a TBM blade disc and TBM entry driving machine, this TBM blade disc includes: the rotary cutting machine comprises a cutter head disc body, a central rotary joint, a plurality of hobs and a plurality of nozzles, wherein the hobs are arranged on the front surface of the cutter head disc body, and each hob is provided with a hob track taking the axis of the cutter head disc body as the center; the center rotary joint install in the back of cutter head disk body, the nozzle install in the front of cutter head disk body and with center rotary joint is linked together, at least one the nozzle is located on the hobbing cutter orbit, at least one the nozzle is located each between the hobbing cutter orbit. Through the utility model discloses, the great technical problem of the degree of difficulty of reinforcing TBM's broken rock efficiency has been alleviated.

Description

TBM cutter head and TBM heading machine

Technical Field

The utility model relates to a tunnel boring technical field especially relates to a TBM blade disc and TBM entry driving machine.

Background

A shield Machine and a TBM (Tunnel Boring Machine) are special engineering machines for tunneling, have functions of excavating and cutting soil, conveying sludge, assembling Tunnel lining and the like, and are widely used in Tunnel engineering of subways, railways, highways, municipal works, hydropower and the like.

The shield machine mainly utilizes a cutter head of the shield machine to break the rock, and the TBM mainly utilizes the cutter head of the TBM to break the rock. The TBM cutterhead comprises TBM hobs arranged on the cutterhead body, the arrangement modes of the TBM hobs comprise linear arrangement, spiral arrangement and the like, and more TBM hobs are arranged on the TBM cutterhead, so that the space is compact. The arrangement mode of increasing the number of the arranged TBM hobs or optimizing the TBM hobs can enhance the rock breaking efficiency of the TBM, but the number of the TBM hobs is limited by space, so that the difficulty in further enhancing the rock breaking efficiency of the TBM is high at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a TBM blade disc and TBM entry driving machine to alleviate the great technical problem of the degree of difficulty of reinforcing TBM's broken rock efficiency.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a TBM blade disc, include: the rotary cutting machine comprises a cutter head disc body, a central rotary joint, a plurality of hobs and a plurality of nozzles, wherein the hobs are arranged on the front surface of the cutter head disc body, and each hob is provided with a hob track taking the axis of the cutter head disc body as the center; the central rotary joint is arranged on the back surface of the cutterhead disc body,

the nozzle install in the front of cutter head disk body and with central rotary joint is linked together, at least one the nozzle is located on the hobbing cutter orbit, at least one the nozzle is located each between the hobbing cutter orbit.

In a preferred embodiment, at least one of said nozzles is located outside the locus of each of said roller cutters.

In a preferred embodiment, at least one of said nozzles is located inside each of said hob trajectories.

In the preferred embodiment, the TBM blade disc include a plurality of install in the shower nozzle of blade disc disk body, the first end of shower nozzle is located the front of blade disc disk body, the second end of shower nozzle is located the back of blade disc disk body, the nozzle install in the first end of shower nozzle, the second end of shower nozzle with central rotary joint connects.

In a preferred embodiment, the TBM cutter head comprises integrated distributors connected between the spray heads and the central rotary joint, and 1-3 spray heads are connected to one integrated distributor.

In a preferred embodiment, the TBM cutterhead includes a corner valve connected between the spray head and the central swivel joint.

In a preferred embodiment, the back of the cutterhead disc is provided with a protective cover plate configured to cover the conduit that communicates the nozzles with the central swivel joint.

In a preferred embodiment, the TBM cutter head includes an annular protection block, and the annular protection block is disposed on the front surface of the cutter head disk body and is fixedly connected to the outside of the nozzle.

In a preferred embodiment, the TBM hob includes a hob seat and rib plates located at both sides of the hob seat, the hob seat is welded to the hob disc body, and the hob is mounted on the hob seat; the rib plates are welded on the cutter head disc body.

The utility model provides a TBM entry driving machine, including foretell TBM blade disc.

The utility model discloses a characteristics and advantage are:

in the TBM cutterhead, the space on the cutterhead disc body is fully utilized to arrange the nozzles, high-pressure water medium can be conveyed to the nozzles through the central rotary joint, the nozzles spray high-pressure water jet to the tunnel face, the nozzles positioned on the tracks of the hobbing cutters and the hobbing cutters break rock in the same track, the nozzles positioned between the tracks of the hobbing cutters break rock between the tracks of the two adjacent hobbing cutters, and the nozzles and the hobbing cutters are coupled to break rock, so that the rock breaking efficiency is enhanced.

Drawings

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

Fig. 1 is a schematic view of a TBM cutter head provided by the present invention;

FIG. 2 is a schematic illustration of the connection of the nozzles to the central swivel joint in the TBM cutterhead shown in FIG. 1;

fig. 3 is a schematic connection diagram of a protective cover plate and a high-pressure pipeline in the TBM cutterhead shown in fig. 1.

The reference numbers illustrate:

1. a cutterhead disc body; 11. the back of the cutter head disc body; 4. hobbing cutters; 3. a hob seat;

2. a torus; 7. a rib plate;

5. a nozzle; 51. a first nozzle; 52. a second nozzle; 53. a third nozzle; 54. a fourth nozzle;

10. a central swivel joint; 9. a high pressure line; 8. an integrated distributor; 6. a corner valve;

12. a protective cover plate;

21. a spray head; 23. and an annular protection block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example one

The utility model provides a TBM blade disc, as shown in FIG. 1, this TBM blade disc includes: the rotary cutting machine comprises a cutter head disc body 1, a central rotary joint 10, a plurality of hobs 4 and a plurality of nozzles 5, wherein the hobs 4 are arranged on the front surface of the cutter head disc body 1, and each hob 4 is provided with a hob track taking the axis of the cutter head disc body 1 as the center; the central rotary joint 10 is arranged on the back 11 of the cutterhead disc body, the nozzles 5 are arranged on the front of the cutterhead disc body 1 and communicated with the central rotary joint 10, at least one nozzle 5 is positioned on the tracks of the hobs, and at least one nozzle 5 is positioned between the tracks of the hobs.

In the TBM cutterhead, the space on the cutterhead disc body 1 is fully utilized to arrange the nozzles 5, high-pressure water medium can be conveyed to the nozzles 5 through the central rotary joint 10, the nozzles 5 spray high-pressure water jet to the tunnel face, the nozzles 5 located on the tracks of the hob cutters and the hob cutters 4 break rock in the same track, the nozzles 5 located between the tracks of the hob cutters break rock between the tracks of the two adjacent hob cutters, the nozzles 5 and the hob cutters 4 are coupled to break rock, and the rock breaking efficiency is enhanced.

The hob cutter 4 rotates along with the cutter head disc body 1, and the hob cutter track is the rotating circular track of the hob cutter 4. The plurality of nozzles 5 includes a first nozzle 51 and a second nozzle 52, and as shown in fig. 1, the first nozzle 51 is located on the hob path of the hob 4 on the right side thereof, and the second nozzle 52 is located between the adjacent two hob paths, being offset from the hob paths on all sides.

Further, the plurality of nozzles 5 includes a third nozzle 53, and the third nozzle 53 is located outside the track of each hob. The high-pressure water jet ejected by the third nozzle 53 is ejected to the tunnel face, and coupled with the track on the inner side of the high-pressure water jet and the nozzle 5 to break the rock, so that the rock breaking efficiency of the TBM is enhanced.

Further, the plurality of nozzles 5 includes a fourth nozzle 54, and the fourth nozzle 54 is located inside the track of each hob. The high-pressure water jet ejected by the fourth nozzle 54 is ejected to the tunnel face and coupled with the track and the nozzle 5 on the outer side to break the rock, so that the rock breaking efficiency of the TBM is enhanced.

The pump unit is connected to the central swivel joint 10 to supply high pressure water medium. The central rotary joint 10 is preferably a multi-path central rotary joint 10, the central rotary joint 10 is installed in the central region of the back of the cutterhead disc body 1, and the rotation center of the central rotary joint 10 is coaxial with the rotation center of the cutterhead disc body 1. The pump group in a static state and the rotary cutter head body 1 are connected through a central rotary joint 10, and the central rotary joint 10 conveys the high-pressure water medium to a nozzle 5 on the front surface of the cutter head. The TBM cutterhead comprises a plurality of spray heads 21 mounted on a cutterhead disc body 1, as shown in FIG. 2, a first end of each spray head 21 is located on the front side of the cutterhead disc body 1, a second end of each spray head 21 is located on the back side 11 of the cutterhead disc body, a nozzle 5 is mounted at the first end of each spray head 21, and the second end of each spray head 21 is connected with a central rotary joint 10. Specifically, the spray head 21 is connected to the central swivel joint 10 via a high-pressure line 9 to ensure delivery of the high-pressure water medium to the spray nozzle 5.

Further, the TBM cutter head comprises an integrated distributor 8 connected between the spray head 21 and the central rotary joint 10, and one integrated distributor 8 is connected with 1-3 spray heads 21. The integrated distributor 8 is arranged at the back of the cutter head disc body 1, the outlet of the central rotary joint 10 is connected with the inlet of the integrated distributor 8 through a high-pressure pipeline 9, and the outlet of the integrated distributor 8 is connected with the spray head 21 through the high-pressure pipeline 9. If the outlet of the integrated distributor 8 is connected with the plurality of spray heads 21, the lengths of the connected high-pressure pipelines 9 are ensured to be equal as much as possible, the integrated distributor 8 enables bending between the central rotary joint 10 and the spray heads 21 to be reduced through arranging a proper position, pressure loss of pipelines of the nozzles 5 is reduced, the pipeline arrangement length is effectively distributed, the pipeline bending number is reduced, and efficient synchronous cutting of the plurality of spray heads 21 is coordinated. Each outlet of the central swivel joint 10 is connected to as many nozzles 5 as possible.

As shown in fig. 1, the TBM cutterhead includes a corner valve 6 connected between the spray head 21 and the central swivel joint 10 to avoid a large bending angle of the high pressure pipe 9 and to ensure smooth delivery of the high pressure water medium to the nozzles 5. Preferably, the integrated distributor 8, the corner valve 6 and the high-pressure line 9 are arranged on the back 11 of the cutterhead disc.

A high pressure line 9 communicates the nozzle 5 with a central swivel joint 10. The rear of the cutterhead disc 1 is provided with a protective cover 12, the protective cover 12 being configured to cover the high-pressure line 9. As shown in fig. 3, the protection cover plate 12 is fixed on the back 11 of the cutter head plate body, the protection cover plate 12 forms a groove for the high-pressure pipeline 9 to penetrate through, a pipeline inlet is arranged on the protection cover plate 12, the high-pressure pipeline 9 enters the groove through the pipeline inlet, and the protection cover plate 12 plays a role in positioning and protecting the high-pressure pipeline 9.

Further, the TBM cutterhead includes an annular protection block 23, as shown in fig. 2, the annular protection block 23 is disposed on the front surface of the cutterhead disc body 1 and is fixedly connected to the outside of the nozzle 5. Specifically, the annular protection block 23 is made of a wear-resistant material, and the annular protection block 23 is sleeved outside the nozzle 5 and welded to the nozzle 5 so as to protect the nozzle 5 in the tunneling process.

In one embodiment, the TBM cutterhead includes a hob holder 3, the hob holder 3 is welded to the cutterhead disc body 1, and the hob 4 is installed on the hob holder 3 to facilitate replacement and maintenance of the hob 4. Specifically, a cutter holder hole is formed in the cutter head disc body 1, the hob cutter holder 3 is welded in the cutter holder hole, and a hob 4 is installed in the hob cutter holder 3. Further, the TBM cutterhead comprises rib plates 7 positioned on two sides of the hob seat 3, the rib plates 7 are welded to the cutterhead disc body 1, the rib plates 7 play a role in enhancing the strength of the TBM cutterhead, and the rib plates 7 are positioned on the back of the cutterhead disc body 1. As shown in fig. 1, the TBM cutterhead comprises a torus 2, the torus 2 surrounds a cutterhead disc body 1, the cutterhead disc body 1 is welded with the torus 2, the torus 2 is favorable for enhancing the overall strength of the TBM cutterhead, rib plates 7 are arranged along the radial direction, and the outer ends of the rib plates 7 are welded on the torus 2.

Example two

The utility model provides a TBM entry driving machine, including foretell TBM blade disc. When the TBM tunneling machine works, a TBM cutterhead rotates under the driving of a driving mechanism, and a hob 4 breaks rocks; meanwhile, the pump unit conveys high-pressure water medium to the nozzle 5 through the central rotary joint 10, the nozzle 5 sprays high-pressure water jet to the tunnel face, and the high-pressure water jet is coupled with the hob 4 to break rock, so that the rock breaking efficiency is improved.

The above description is only for the embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.

Claims

1. A TBM cutterhead, comprising: the rotary cutting machine comprises a cutter head disc body, a central rotary joint, a plurality of hobs and a plurality of nozzles, wherein the hobs are arranged on the front surface of the cutter head disc body, and each hob is provided with a hob track taking the axis of the cutter head disc body as the center; the central rotary joint is arranged on the back surface of the cutterhead disc body,

2. The TBM cutterhead of claim 1, wherein at least one of the nozzles is located outboard of each of the hob paths.

3. The TBM cutterhead of claim 1, wherein at least one of the nozzles is located inboard of each of the hob paths.

4. The TBM cutterhead of claim 1, wherein the TBM cutterhead includes a plurality of spray heads mounted to the cutterhead disc body, a first end of the spray heads being located at the front of the cutterhead disc body, a second end of the spray heads being located at the back of the cutterhead disc body, the nozzles being mounted to the first end of the spray heads, the second end of the spray heads being connected to the central swivel joint.

5. The TBM cutterhead of claim 4, wherein the TBM cutterhead includes integrated distributors connected between the spray heads and the central swivel joint, one integrated distributor being connected to between 1 and 3 spray heads.

6. The TBM cutterhead of claim 4, wherein the TBM cutterhead includes a corner valve connected between the spray head and the central rotary joint.

7. The TBM cutterhead of claim 1, wherein the back of the cutterhead disc is provided with a protective cover plate configured to cover the piping that communicates the nozzles with the central swivel joint.

8. The TBM cutterhead of claim 1, wherein the TBM cutterhead includes an annular protective block, the annular protective block is disposed on the front face of the cutterhead disc body and is fixedly connected to the outside of the nozzles.

9. The TBM cutterhead according to claim 1, wherein the TBM cutterhead comprises a hob seat and rib plates located on two sides of the hob seat, the hob seat is welded to the cutterhead disc body, and the hob is mounted on the hob seat; the rib plates are welded on the cutter head disc body.

10. A TBM heading machine comprising a TBM cutterhead according to any one of claims 1 to 9.