阅读说明：本技术 一种连续开挖装置和全断面掘进机 (Continuous excavation device and full-face heading machine ) 是由 叶蕾 齐志冲 肖威 邓飞 陈凯歌 宋春晓 付玉龙 张恒 赵飞 宋德华 张朋真 于 2021-07-29 设计创作，主要内容包括：本发明提供了一种连续开挖装置和全断面掘进机,所述连续开挖装置包括内外套设的后主梁(3)和滑箱(4),后主梁(3)沿前后方向延伸,滑箱(4)能够沿前后方向移动,滑箱(4)的左右两侧均设有开挖机构,所述开挖机构含有上下设置的支撑臂(6)和轮式刀盘(7),轮式刀盘(7)通过刀盘轴(16)与支撑臂(6)连接,刀盘轴(16)的轴线沿左右方向设置。该连续开挖装置可以方便的搭载于现有的圆形盾构机或者TBM盾构机上,实现异形隧道(类似于城门洞型或者马蹄形)截面的一次性开挖成型,且成型截面质量好,并具有安全稳定、效率高、开挖支护一体等优势。(The invention provides a continuous excavation device and a full-face tunneling machine, wherein the continuous excavation device comprises a rear main beam (3) and a sliding box (4) which are sleeved inside and outside, the rear main beam (3) extends along the front-back direction, the sliding box (4) can move along the front-back direction, excavation mechanisms are arranged on the left side and the right side of the sliding box (4), each excavation mechanism comprises a supporting arm (6) and a wheel-type cutter head (7) which are arranged up and down, the wheel-type cutter head (7) is connected with the supporting arm (6) through a cutter head shaft (16), and the axis of the cutter head shaft (16) is arranged along the left-right direction. The continuous excavation device can be conveniently carried on the existing circular shield tunneling machine or TBM shield tunneling machine, realizes one-time excavation and forming of the section of a special-shaped tunnel (similar to an urban door opening type or a horseshoe shape), has good forming section quality, and has the advantages of safety, stability, high efficiency, integration of excavation and supporting and the like.)

1. The utility model provides a continuous excavation device, a serial communication port, the continuous excavation device includes back girder (3) and slip case (4) that the endotheca was established, and back girder (3) extend along the fore-and-aft direction, and slip case (4) can be followed the fore-and-aft direction and removed, and the left and right sides of slip case (4) all is equipped with excavation mechanism, support arm (6) and wheeled blade disc (7) that excavation mechanism contained setting from top to bottom, and wheeled blade disc (7) are connected with support arm (6) through cutter disc axle (16), and the axis of cutter disc axle (16) sets up along the left and right directions.

2. The continuous excavation device of claim 1, wherein the lower portion of the slide box (4) is provided with a slide way, the slide way extends along the front-back direction, the excavation mechanism further comprises a slide block (13), the slide block (13) is connected with the slide way in a matching manner, the support arm (6) is connected with the slide block (13) through a pin shaft (15), and the axis of the pin shaft (15) is arranged along the left-right direction.

3. Continuous excavation apparatus according to claim 2, characterized in that the excavation means further comprises a thrust cylinder (9), one end of the thrust cylinder (9) being connected to the slide (13) and the other end of the thrust cylinder (9) being connected to the slide box (4), the thrust cylinder (9) being capable of moving the slide (13) in a forward and backward direction.

4. Continuous excavation apparatus according to claim 2, characterized in that the excavation means further comprise a swing cylinder (5), one end of the swing cylinder (5) being connected to the slide (13) and the other end of the swing cylinder (5) being connected to the support arm (6), the swing cylinder (5) being capable of rotating the support arm (6) about the pin (15).

5. Continuous excavation apparatus according to claim 1, characterized in that the continuous excavation apparatus further comprises a hoist (10), the hoist (10) being located outside the left and right sides of the rear main beam (3), the wheeled cutterhead (7) corresponding front and rear to the hoist (10).

6. The continuous excavation device according to claim 5, characterized in that the hoist (10) includes a lifting section (1001) and a lower sliding section (1002) connected in sequence, the lifting section (1001) and the lower sliding section (1002) are both disposed obliquely, and the left and right hoists (10) are arranged in an M shape.

7. Continuous excavation apparatus according to claim 5, characterized in that the excavation mechanism further comprises a slag chute (8), the slag chute (8) being fixed relative to the support arm (6), the inlet end of the slag chute (8) facing the wheel cutter (7) and the outlet end of the slag chute (8) facing the hoist (10).

8. The continuous excavation device of claim 5, wherein the rear main beam (3) is of a hollow structure, a belt conveyor (14) is arranged in the rear main beam (3), a slag inlet (301) is formed in the upper portion of the rear main beam (3), the belt conveyor (14) is located right below the slag inlet (301), and the outlet end of the elevator (10) corresponds to the slag inlet (301).

9. The continuous excavation apparatus according to claim 1, further comprising a main cylinder (11) and a support shoe (12), wherein one end of the main cylinder (11) is connected to the slide box (4), the other end of the main cylinder (11) is connected to the rear main beam (3), the main cylinder (11) can move the slide box (4) in the front-rear direction, the support shoe (12) is located outside the left side and the right side of the slide box (4), and the support shoe (12) can be extended and retracted.

10. A full-face heading machine is characterized by comprising a circular cutter head (1) and a front main beam (2) which are arranged in front and back, the full-face heading machine further comprises a continuous excavation device according to claim 1, and the front main beam (2) is connected with a rear main beam (3) in front and back.

Technical Field

The invention relates to the field of tunnel construction equipment, in particular to a continuous excavation device and a full-face tunneling machine.

Background

The conventional tunnel excavation section is a circular section, and the tunnel section has the advantages of good stress and high tunnel safety; when the circular section tunnel is laid with a track or a road surface, a certain amount of backfill work needs to be carried out on the bottom, so that the use of the lower space of the circular tunnel is limited, and the space utilization rate of the tunnel section is reduced; for the tunnel needing to be staggered, a staggered chamber needs to be reserved specially or the section excavation diameter needs to be enlarged, the size and the weight of tunnel excavation equipment are increased, the tunnel excavation amount is increased, and further the construction cost of the tunnel is increased.

In order to solve the problems, the conventional method is to perform secondary shape modification on the section of the excavated circular tunnel; excavating the bottom of the section of the circular tunnel by adopting a drilling and blasting method of manual excavation or a special excavation device and the like; the embodiment has low excavation efficiency and poor tunnel section forming quality, and can not realize one-time excavation and support forming of the full section.

Disclosure of Invention

In order to realize one-time excavation molding of an urban door opening type or horseshoe-shaped tunnel, the invention provides a continuous excavation device and a full-face tunneling machine, wherein the continuous excavation device can be conveniently carried on the existing circular shield machine or TBM shield machine to form the full-face tunneling machine, so that one-time excavation molding of the section of a special-shaped tunnel (similar to the urban door opening type or the horseshoe-shaped tunnel) is realized, the quality of the molded section is good, and the full-face tunneling machine has the advantages of safety, stability, high efficiency, integration of excavation and support and the like.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides a continuous excavation device, includes back girder and slip case that the endotheca was established, and back girder extends along the fore-and-aft direction, and the slip case can be followed the fore-and-aft direction and removed, and the left and right sides of slip case all is equipped with excavation mechanism, support arm and the wheeled blade disc that excavation mechanism set up about containing, wheeled blade disc pass through cutter arbor and support arm connection, and the axis of cutter arbor sets up along the left and right directions.

The full-face heading machine comprises a circular cutter head and a front main beam which are arranged in front and back, and further comprises the continuous excavation device, wherein the front main beam and the rear main beam are connected in front and back.

The invention has the beneficial effects that:

1. the one-step molding of the tunnel section of the tunnel type or the horseshoe type is realized.

2. The space utilization rate of the traditional circular cross-section tunnel is improved.

3. The detachable independent excavation module can be used for expanding the excavation section type of the existing circular shield machine or TBM shield machine.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

Fig. 1 is a schematic view of a continuous excavation apparatus and a full face tunnel boring machine according to the present invention.

Fig. 2 is a sectional view taken along the direction G-G in fig. 1.

Fig. 3 is a sectional view taken along the direction H-H in fig. 1.

Fig. 4 is a sectional view taken along the direction K-K in fig. 1.

1. A circular cutter head; 2. a front main beam; 3. a rear main beam; 4. a slide box; 5. a swing oil cylinder; 6. a support arm; 7. a wheel-type cutter head; 8. a slag guide groove; 9. a propulsion cylinder; 10. a hoist; 11. a master cylinder; 12. supporting the boot; 13. a slider; 14. a belt conveyor; 15. a pin shaft; 16. a cutter head shaft;

301. a slag inlet;

1001. a lifting section; 1002. a lower slide section.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The utility model provides a continuous excavation device, includes back girder 3 and slip box 4 that the endotheca was established, and back girder 3 extends along the fore-and-aft direction, and slip box 4 can remove along the fore-and-aft direction for back girder 3, and the left and right sides of slip box 4 all is equipped with excavation mechanism, support arm 6 and wheeled blade disc 7 that excavation mechanism contains the setting from top to bottom, and wheeled blade disc 7 passes through cutter shaft 16 and is connected with support arm 6, and wheeled blade disc 7 can rotate around cutter shaft 16, and cutter shaft 16's axis sets up along the left and right directions, as shown in fig. 1-4.

In this embodiment, outside rear girder 3 was located to the cover that smooth case 4 matches, all was equipped with the slide in the lower part left and right sides of smooth case 4, the slide extends along the fore-and-aft direction, excavation mechanism still contains slider 13, and slider 13 is located in the slide, slider 13 with slide accordant connection, support arm 6 are through round pin axle 15 and slider 13, and the axis of round pin axle 15 sets up along the left and right directions, and support arm 6 can rotate around round pin axle 15.

In this embodiment, the excavation mechanism further includes a thrust cylinder 9, one end of the thrust cylinder 9 is hinged (directly or indirectly) to the slider 13, the other end of the thrust cylinder 9 is hinged (directly or indirectly) to the slide box 4, and the thrust cylinder 9 can move the slider 13 in the front-back direction, so that the support arm 6 and the wheel-type cutter head 7 can also move in the front-back direction synchronously with the slider 13.

In this embodiment, the excavation mechanism further includes a swing cylinder 5, one end of the swing cylinder 5 is hinged to the slider 13 (directly or indirectly), the other end of the swing cylinder 5 is hinged to the support arm 6 (directly or indirectly), the swing cylinder 5 can enable the support arm 6 to rotate around the pin 15, so that the wheel-type cutter 7 can also rotate around the pin 15 synchronously with the support arm 6, and the swing cylinder 5 and the thrust cylinder 9 are arranged in front of and behind each other.

In this embodiment, two the excavation mechanism is located the left and right sides of back girder 3 outside, left promptly the excavation mechanism is located the left side of back girder 3 outside, the right side the excavation mechanism is located the right side of back girder 3 outside, two the excavation mechanism is each other for the mirror image. The left side excavation mechanism can excavate the lower left part in tunnel, and the right side excavation mechanism can excavate the tunnel by lower position to realize the one-time excavation shaping of city portal type or horseshoe tunnel cross-section, as shown in figure 2.

In this embodiment, the continuous excavation device further includes a hoist 10, the hoist 10 is located outside the left side and the right side of the rear main beam 3, the wheel-type cutter 7 corresponds to the hoist 10 in the front and back direction, and the hoist 10 is used for transporting the muck or the slag stone generated by the excavation of the stratum by the wheel-type cutter 7 out of the tunnel or to an intermediate conveying mechanism, and then transporting the muck or the slag stone out of the tunnel by the intermediate conveying mechanism.

In this embodiment, the hoist 10 includes an inlet and an outlet, the hoist 10 includes a lifting section 1001 and a lower sliding section 1002 connected in sequence, the lifting section 1001 and the lower sliding section 1002 are both disposed in an inclined manner, and the left and right hoists 10 are arranged in an M shape. The inlet end of the hoist 10 is located below the lifting section 1001 and the outlet end of the hoist 10 is located below the lower sliding section 1002.

After entering the hoisting machine 10 from the inlet of the hoisting machine 10, the slag soil or the slag stones move upwards along the hoisting section 1001, and after reaching the joint between the hoisting section 1001 and the lower sliding section 1002, the slag soil or the slag stones slide downwards along the lower sliding section 1002 in an inclined manner on the lower sliding section 1002, and finally are discharged from the outlet of the hoisting machine 10.

In this embodiment, the excavation mechanism further includes a slag guide groove 8, the slag guide groove 8 is an inclined sliding groove and is substantially similar to a section of channel steel, the slag guide groove 8 is fixed with respect to the support arm 6, an inlet end of the slag guide groove 8 faces the wheel cutter 7, an outlet end of the slag guide groove 8 faces an inlet end of the hoist 10, and the slag guide groove 8 is used for guiding the slag or the slag stone generated by excavation of the wheel cutter 7 into the hoist 10. The peripheral surface of the wheel type cutter head 7 is provided with a disc cutter.

In this embodiment, the rear main beam 3 is a hollow structure, the cross section of the rear main beam 3 is rectangular, a belt conveyor 14 is arranged in the rear main beam 3, the conveying direction of the belt conveyor 14 is from front to back, a slag inlet 301 is arranged at the upper portion of the rear main beam 3, the belt conveyor 14 is located right below the slag inlet 301, the outlet end of the elevator 10 corresponds to the slag inlet 301, and the slag soil or slag stones discharged by the elevator 10 fall on the belt conveyor 14 and are carried away by the belt conveyor 14, as shown in fig. 4.

In this embodiment, the continuous excavation device further includes a main cylinder 11 and a support shoe 12, one end of the main cylinder 11 is hinged to the slide box 4 (directly or indirectly), the other end of the main cylinder 11 is hinged to the rear main beam 3 (directly or indirectly), the main cylinder 11 can move the slide box 4 in the front-rear direction, the support shoe 12 is located outside the left side and the right side of the slide box 4, and the support shoe 12 can extend and retract.

The main oil cylinder 11 is located at the rear side of the sliding box 4, the main oil cylinder 11 is located below the rear main beam 3, and the supporting shoes 12 are used for fixing the sliding box 4 and the excavation mechanism relative to the side wall of the tunnel so as to enable the excavation mechanism to work more stably, as shown in fig. 3.

The following introduces a full-face heading machine, the full-face heading machine includes the circular cutter head 1 and the front main beam 2 that set up around, the full-face heading machine still includes foretell continuous excavation device, and front main beam 2 is connected with back main beam 3 front and back. Preferably, the rear portion of the front main beam 2 is hinged fore-and-aft (directly or indirectly) to the front portion of the rear main beam 3, as shown in fig. 1.

The circular cutterhead 1 and the front girder 2 can be circular cutterheads 1 and front girders 2 of the existing circular shield tunneling machine or TBM shield tunneling machine, namely, the full-section tunneling machine is formed by additionally arranging the continuous excavation device on the existing circular shield tunneling machine or TBM shield tunneling machine, the front girder 2 and the rear girder 3 of the existing circular shield tunneling machine or TBM shield tunneling machine are connected in front and at the back, and the full-section tunneling machine is an improvement of the existing circular shield tunneling machine or TBM shield tunneling machine.

The operation of the continuous excavation apparatus and the full face tunnel boring machine will be described.

A first excavation flow:

when the tunnel excavation device works, a circular tunnel section is excavated by the circular cutter head 1 in the front shield area A, and the wheel-type cutter head 7 excavates two side faces of the tunnel at the rear part. When the wheel type cutter 7 is excavated, firstly, a push rod of the main oil cylinder 11 extends out to push the sliding box 4 and other components connected with the sliding box 4 to slide forwards for a certain distance on the rear main beam 3, and then the supporting shoe 12 is tightly pressed against the side wall of the tunnel under the action of the internal oil cylinder to fix the sliding box 4, so that necessary reaction force is provided for the normal work of the wheel type cutter 7. After the actions are finished, the main oil cylinder 11 releases pressure, so that the push rod and the cylinder body can slide mutually under the action of external pulling force or pressure. The swing oil cylinder 5 extends out, and the position of the wheel type cutter head 7 is adjusted, so that the wheel type cutter head 7 is positioned on the excavation surface. Then the swing oil cylinder 5 is locked, so that the mutual positions among the swing oil cylinder 5, the slide block 13, the supporting arm 6 and the wheel type cutter head 7 are unchanged, and a fixed whole is formed. And the propulsion oil cylinder 9 extends out to push the wheel type cutter head 7 to move forwards to realize excavation until the propulsion oil cylinder 9 works to the tail end of the stroke. The dregs are taken away from the digging surface along with the rolling of the wheel type cutter head 7, flow into the elevator 10 through the dregs guide groove 8, are conveyed to the belt conveyor 14 in the rear main beam 3 by the elevator 10, and are finally conveyed to the outside of the tunnel.

And a second excavation flow:

after the first excavation process is finished, the propulsion oil cylinder 9 retracts to drag the sliding block 13 and other components connected with the sliding block 13 to return to the initial position; the main oil cylinder 11 works to push the sliding box 4 to slide forwards, so that the wheel type cutter head 7 moves to a new excavation surface; then the supporting shoes 12 act to tightly push against the wall surface of the tunnel, and the main oil cylinder 11 is decompressed; the swing oil cylinder 5 and the push oil cylinder 9 respectively act, and then the process in the first excavation flow is completed.

And the whole excavation and slag discharging device circularly reciprocates to perform the actions of the first excavation flow and the second excavation flow until the whole tunnel is excavated. Wherein, the interior surface mounting of section B is built to the section of jurisdiction and the upper portion D of both sides excavation section C has the section of jurisdiction, treats that both sides excavation section C construction finishes, and smooth case 4 leaves both sides excavation section C after, can install the section of jurisdiction in the upper portion E of both sides excavation section C to form the complete section of jurisdiction of circumference.

For convenience of understanding and description, the absolute positional relationship is used in the present invention, and unless otherwise specified, the term "up" indicates the upper direction in fig. 2, the term "down" indicates the lower direction in fig. 2, the term "left" indicates the left direction in fig. 2, the term "right" indicates the right direction in fig. 2, the term "front" indicates a direction perpendicular to the paper of fig. 2 and directed to the inside of the paper, and the term "rear" indicates a direction perpendicular to the paper of fig. 2 and directed to the outside of the paper. The present invention has been described in terms of the viewing angle of the reader or user, but the above directional terms should not be construed or interpreted as limiting the scope of the present invention.

The above description is only exemplary of the invention and should not be taken as limiting the scope of the invention, so that the invention is intended to cover all modifications and equivalents of the embodiments described herein. In addition, the technical features and the technical schemes, and the technical schemes can be freely combined and used.