CN113250201A - Hanging scaffold formula open caisson entry driving machine - Google Patents

Abstract

In order to realize underground excavation and unmanned muck loading and unloading, and realize unmanned sinking well excavation and muck conveying, the invention provides a sinking well excavation device; the hanging scaffold is positioned above a tunneling surface at the bottom of the open caisson and can move up and down in the depth direction of the open caisson, the lower part of the hanging scaffold is provided with a hanging excavator which can move around and dig soil on the hanging scaffold, and the upper part of the hanging scaffold is provided with a bucket hanging slag raking machine which can convey the soil and soil dug by the hanging excavator to the edge of the open caisson; the invention can realize the low-cost underground unmanned excavation operation of the large-diameter circular drainage open caisson, can realize the continuous excavation and residue soil conveying operation of the open caisson, and improves the excavation efficiency.

Description

Hanging scaffold formula open caisson entry driving machine

Technical Field

The invention relates to an open caisson tunneling device, which is applied to the field of underground structures and foundation engineering in civil engineering.

Background

The open caisson technology is widely applied to tunnel working wells, water storage wells, bridge anchorages and foundation engineering, most of the existing open caisson excavation work needs an excavator operator to go into the well for drainage circular open caisson with larger diameter, and certain safety risks exist in the working and the open caisson process of personnel under the working condition that the underground space is limited; in addition, for a drainage open caisson with a large diameter, when muck is transported out of the well, a gantry crane or a large crawler crane is generally needed for enlarging the hoisting range, but the hoisting weight requirement is relatively wasted relative to the hoisting capacity; therefore, there is a need to develop an unmanned open caisson excavating equipment which has relatively simple technology, relatively low manufacturing cost and convenient construction and maintenance.

Disclosure of Invention

In view of this, the embodiment of the invention provides an open caisson tunneling device, which can realize unmanned underground excavation and muck loading and unloading, can complete the bottom excavation of the open caisson, and can convey the muck to the edge position of the open caisson, thereby facilitating the transportation of the muck. In order to achieve the above purpose, the embodiment of the invention adopts the following technical scheme:

a hanging plate type open caisson heading machine is characterized by comprising a hanging plate, a hanging excavator and a hanging slag-raking machine; the hanging scaffold is positioned above a tunneling surface at the bottom of the open caisson, can move up and down in the depth direction of the open caisson, and is used for providing a working platform for the suspended excavator and the suspended slag raking machine; the suspended excavator is positioned at the lower part of the hanging scaffold and can move and dig soil on the hanging scaffold in the circumferential direction; the suspension slag-raking machine is positioned above the hanging scaffold, can circularly and synchronously move along with the suspension excavator at the opposite side of the diameter direction of the hanging scaffold, and conveys the rock soil excavated by the suspension excavator to a bucket positioned at the edge of the open caisson.

Further, the hanging scaffold comprises a main beam, an upper guide rail, a hanging ring, a lower guide rail, a supporting arm and a guide wheel; the main beam comprises an inner ring beam, an outer ring beam and a connecting cross beam, and the inner ring beam and the outer ring beam are fixedly connected through the connecting cross beam; an upper guide rail and a lower guide rail are respectively arranged above and below the main beam, and can respectively provide support and guide for the suspended slag raking machine and the suspended excavator; a plurality of support arms are installed in the girder outside, and the guide pulley is installed on the top of support arm, can right the platform sling at platform sling promotion and decline in-process, and rings are installed to the support arm top.

Further, the suspension excavator comprises an excavating trolley, a rotary table, a hydraulic pump station, an excavating arm oil cylinder and an excavating arm; the excavating trolley can move along the lower guide rail; one end of the excavating trolley is provided with a turntable, an excavating arm is arranged on the turntable, and the excavating arm can rotate along the turntable; a hydraulic pump station and an electric control cabinet are arranged behind the excavating arm and the rotary table and can provide power and control signals for the excavating trolley, the rotary table and the excavating arm.

And further, the device also comprises a suspension device, wherein the suspension device is arranged around the open caisson wellhead and internally provided with a stable vehicle, and a steel cable is arranged on the stable vehicle and connected with a lifting ring and used for suspending and lifting the hanging scaffold.

Further, the suspension slag raking machine comprises a conveyor, a conveying pump station, a support and a conveying trolley; the conveying trolley can move along the upper guide rail in the circumferential direction, a support is arranged above the conveying trolley, and a conveyor is arranged above the support; the bottom end of the conveyor is positioned at the center of the open caisson, and the top end of the conveyor is close to the position of the well wall, so that rock soil excavated by the suspension excavator can be conveyed from the bottom end to the top end; and a conveying pump station is installed on one side of the support and can provide power for the conveying trolley and the conveyor.

Further, the conveyor is a scraper conveyor or a screw conveyor.

Furthermore, a hydraulic oil cylinder is arranged on the support, and the inclination angle and the position of the conveyor on the conveying trolley can be adjusted.

Furthermore, the device also comprises a soil discharging device, wherein the soil discharging device comprises a cantilever crane and a bucket; the cantilever crane is arranged at the edge of the open caisson, and a lifting bucket is arranged on a lifting hook of the cantilever crane; the bucket can circularly and upwards lift the slag and soil and is always matched with the suspension slag raking machine to work.

Furthermore, a plurality of cantilever cranes can be installed on the edge of the open caisson, the cantilever cranes work with the suspended slag raking machine in a matching manner, and when a certain bucket is filled with slag soil and lifted, the conveyor rotates to the next bucket, so that the bucket at the top end of the conveyor always bears the slag soil, and the working efficiency of the slag raking machine can be improved.

Further, the lower guide rail is a single rail.

Compared with the prior art, the open caisson tunneling device has the following advantages: aiming at the large-diameter circular drainage open caisson, the underground unmanned excavation operation with low cost can be realized, the equipment maintenance and repair can be carried out at the wellhead, the slag is discharged through a plurality of lifting buckets, the continuous excavation and slag soil conveying operation of the open caisson can be realized, and the excavation efficiency is improved; the bucket is located beside the wall of the open caisson, so that the waste of hoisting weight caused by hoisting distance is reduced.

Drawings

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

Fig. 1 is a schematic structural diagram of a hanging scaffold type open caisson heading machine according to an embodiment of the invention;

fig. 2 is a schematic structural diagram of a tunneling hanging scaffold according to an embodiment of the invention;

FIG. 3 is a schematic structural diagram of a suspended excavator according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a slag raking machine according to an embodiment of the invention.

Description of reference numerals:

a hanging scaffold; 101-upper guide rail; 102-an inner ring beam; 103-outer ring beam; 104-connecting beam; 105-a lifting ring; 106-lower rail; 107-a support arm; 108-a guide wheel; 200-a suspended excavator; 201-excavating the trolley; 202-a turntable; 203-hydraulic pump station; 204-a digging arm; 300-a slag raking machine; 301-a conveyor; 302-conveying pump station; 303-a scaffold; 304-a transport trolley; 4-lifting a bucket; 5, hanging a cantilever; 6-suspension device.

Detailed Description

It should be understood that the described embodiments are only some embodiments of the invention, and not all 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.

Referring to fig. 1-4, a hanging plate type open caisson heading machine is characterized by comprising a hanging plate, a suspended excavator (200) and a suspended slag-raking machine (300); the hanging scaffold is positioned above a tunneling surface at the bottom of the open caisson, can move up and down in the depth direction of the open caisson, and is used for providing a working platform for the suspended excavator (200) and the suspended slag raking machine (300); the suspension excavator (200) is positioned at the lower part of the hanging scaffold and can move and dig soil on the hanging scaffold in the annular direction; the suspension slag-raking machine (300) is positioned above the hanging scaffold, can circularly and synchronously move along with the suspension excavator (200) at the opposite side of the hanging scaffold, and conveys the rock soil excavated by the suspension excavator (200) to the bucket (4) positioned at the edge of the open caisson.

Preferably, the hanging scaffold comprises a main beam, an upper guide rail (101), a hanging ring (105), a lower guide rail (106), a support arm (107) and a guide wheel (108); the main beam comprises an inner ring beam (102), an outer ring beam (103) and a connecting cross beam (104), and the inner ring beam (102) and the outer ring beam (103) are fixedly connected through the connecting cross beam (104); an upper guide rail (101) and a lower guide rail (106) are respectively arranged above and below the main beam and can respectively provide support and guide for the suspended slag raking machine (300) and the suspended excavator (200); a plurality of support arms (107) are installed in the girder outside, and guide pulley (108) are installed on the top of support arm (107), can right the platform sling at platform sling promotion and decline in-process, and rings (105) are installed to support arm (107) top.

Preferably, the suspension excavator (200) comprises an excavating trolley (201), a turntable (202), a hydraulic pump station (203), an excavating arm (204) oil cylinder and an excavating arm (204); the digging trolley (201) can move along the lower guide rail (106); one end of the excavating trolley (201) is provided with a turntable (202), an excavating arm (204) is arranged on the turntable (202), and the excavating arm (204) can rotate along the turntable (202); a hydraulic pump station (203) and an electric control cabinet are arranged behind the excavating arm (204) and the turntable (202) and can provide power and control signals for the excavating trolley (201), the turntable (202) and the excavating arm (204).

Preferably, the device further comprises a suspension device (6), wherein the suspension device (6) is installed around the open caisson hole, a stable vehicle is arranged in the suspension device, a steel cable is arranged on the stable vehicle, and the steel cable is connected with the hanging ring (105) and used for hanging and lifting the hanging scaffold.

Preferably, the suspension slag-raking machine (300) comprises a conveyor (301), a conveying pump station (302), a bracket (303) and a conveying trolley (304); the conveying trolley (304) can move along the upper guide rail (101) in the annular direction, a support (303) is arranged above the conveying trolley (304), and a conveyor (301) is arranged above the support (303); the bottom end of the conveyor (301) is positioned at the center of the open caisson, the top end of the conveyor is close to the position of the well wall, and rock soil excavated by the suspension excavator (200) can be conveyed from the bottom end to the top end; and a conveying pump station (302) is arranged on one side of the support (303) and can provide power for the conveying trolley (304) and the conveyor (301).

Preferably, the conveyor (301) is a scraper conveyor (301) or a screw conveyor (301).

Preferably, the support (303) is provided with a hydraulic cylinder, so that the inclination and position of the conveyor (301) on the conveying trolley (304) can be adjusted.

Preferably, the device also comprises a soil discharging device, wherein the soil discharging device comprises a cantilever crane (5) and a bucket (4); the cantilever crane (5) is arranged at the edge of the open caisson, and a lifting bucket (4) is arranged on a lifting hook of the cantilever crane (5); the bucket (4) can circularly lift the slag upwards and is always matched with the suspension slag raking machine (300).

Preferentially, a plurality of cantilever cranes (5) can be installed at the edge of the open caisson, the cantilever cranes (5) and the suspended slag raking machine (300) work in a matched mode, when one bucket (4) is filled with slag soil and lifted, the conveyor (301) rotates to the next bucket (4), so that the bucket (4) at the top end of the conveyor (301) always receives the slag soil, and the working efficiency of the suspended slag raking machine (300) can be improved. Further, the lower rail (106) may be a single rail.

Preferably, the suspension excavator (200) is driven by an electric motor or an internal combustion engine, moves to a position required to be excavated along the lower guide rail below the hanging scaffold (100), and simultaneously moves the suspension slag-raking machine (300) to a position corresponding to the sinking bucket (4) on the opposite side of the suspension excavator (200); loading rock soil onto a suspension slag-raking machine (300) by using the suspension excavator (200), and loading and unloading the rock soil to a bucket (4) by using the suspension slag-raking machine (300); the hanging scaffold (100) can be lifted up and down to adjust the height of the suspended excavator (200) from the tunneling working surface; when the hanging scaffold (100), the suspended excavator (200) and the suspended slag-raking machine (300) need to be maintained, the hanging scaffold (100) can carry the suspended excavator (200) and the suspended slag-raking machine (300) to be lifted to a wellhead of the open caisson under the action of the suspension device.

Claims (10)

1. A hanging plate type open caisson heading machine is characterized by comprising a hanging plate, a hanging excavator and a hanging slag-raking machine; the hanging scaffold is positioned above a tunneling surface at the bottom of the open caisson, can move up and down in the depth direction of the open caisson, and is used for providing a working platform for the suspended excavator and the suspended slag raking machine; the suspended excavator is positioned at the lower part of the hanging scaffold and can move and dig soil on the hanging scaffold in the circumferential direction; the suspension slag-raking machine is positioned above the hanging scaffold, can circularly and synchronously move along with the suspension excavator at the opposite side of the diameter direction of the hanging scaffold, and conveys the rock soil excavated by the suspension excavator to a bucket positioned at the edge of the open caisson.

2. The open caisson heading device of claim 1, wherein the hanging scaffold comprises a main beam, an upper guide rail, a hanging ring, a lower guide rail, a support arm and a guide wheel; the main beam comprises an inner ring beam, an outer ring beam and a connecting cross beam, and the inner ring beam and the outer ring beam are fixedly connected through the connecting cross beam; an upper guide rail and a lower guide rail are respectively arranged above and below the main beam, and can respectively provide support and guide for the suspended slag raking machine and the suspended excavator; a plurality of support arms are installed in the girder outside, and the guide pulley is installed on the top of support arm, can right the platform sling at platform sling promotion and decline in-process, and rings are installed to the support arm top.

3. The open caisson excavating device of claim 2 wherein the suspended excavator comprises an excavating trolley, a turntable, a hydraulic pump station, an excavating arm cylinder and an excavating arm; the excavating trolley can move along the lower guide rail; one end of the excavating trolley is provided with a turntable, an excavating arm is arranged on the turntable, and the excavating arm can rotate along the turntable; a hydraulic pump station and an electric control cabinet are arranged behind the excavating arm and the rotary table and can provide power and control signals for the excavating trolley, the rotary table and the excavating arm.

4. The open caisson heading device of claim 2, further comprising a suspension device, wherein the suspension device is installed around the open caisson wellhead and internally provided with a stabilizing vehicle, and the stabilizing vehicle is provided with a steel cable which is connected with the lifting ring and used for suspending and lifting the hanging scaffold.

5. The open caisson heading device according to claim 2, wherein the suspension slag-raking machine comprises a conveyor, a conveying pump station, a support and a conveying trolley; the conveying trolley can move along the upper guide rail in the circumferential direction, a support is arranged above the conveying trolley, and a conveyor is arranged above the support; the bottom end of the conveyor is positioned at the center of the open caisson, and the top end of the conveyor is close to the position of the well wall, so that rock soil excavated by the suspension excavator can be conveyed from the bottom end to the top end; and a conveying pump station is installed on one side of the support and can provide power for the conveying trolley and the conveyor.

6. An open caisson heading device according to claim 5 wherein the conveyor is a scraper conveyor or a screw conveyor.

7. The open caisson heading device of claim 5, wherein the support is provided with a hydraulic cylinder capable of adjusting the inclination and position of the conveyor on the conveyor trolley.

8. The open caisson heading device of claim 1, further comprising a soil removal device comprising a cantilever crane and a bucket; the cantilever crane is arranged at the edge of the open caisson, and a lifting bucket is arranged on a lifting hook of the cantilever crane; the bucket can circularly and upwards lift the slag and soil and is always matched with the suspension slag raking machine to work.

9. The caisson heading device of claim 8, wherein a plurality of cantilever cranes can be mounted on the edge of the caisson, the cantilever cranes work together with the suspended slag raking machines, and when one bucket is filled with the slag and lifted, the conveyor rotates to the next bucket, so that the bucket at the top end of the conveyor always receives the slag, and the working efficiency of the slag raking machines can be improved.

10. A sinking excavation means according to claim 2, wherein the lower track is a monorail.

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