CN112483118A

CN112483118A - Free-section hard rock excavating equipment

Info

Publication number: CN112483118A
Application number: CN202011600915.8A
Authority: CN
Inventors: 田彦朝; 肖威; 贾连辉; 贺飞; 吕旦; 周倩
Original assignee: China Railway Engineering Equipment Group Co Ltd CREG
Current assignee: China Railway Engineering Equipment Group Co Ltd CREG
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-03-12
Anticipated expiration: 2040-12-30
Also published as: CN112483118B

Abstract

The invention discloses free-section hard rock excavating equipment, which solves the problem of low excavating efficiency of a shaft with an oversized section in the prior art. The slag-conveying device comprises a movable vehicle body, wherein the front end of the movable vehicle body is hinged with a connecting frame, a drum-type cutter head is arranged on the connecting frame, the connecting frame is connected with the movable vehicle body through a telescopic driving mechanism, and the drum-type cutter head corresponds to a slag conveying mechanism arranged on the movable vehicle body. Preferably, the mobile vehicle body is provided with a cab and a base, the base is positioned at the front part of the cab, the connecting frame is hinged on the base, and the bottom of the mobile vehicle body is provided with a crawler traveling mechanism. The drum-type cutter head excavation device disclosed by the invention realizes flexible and efficient excavation of hard rock sections through drum-type cutter head excavation and crawler-type movement, is suitable for excavation of shafts with ultra-large sections and free sections, and reduces equipment investment. The drum-type blade disc sets up certain quantity slag notch along circumference, transports the rock sediment to rock sediment conveying mechanism through the slag notch, arrives the equipment afterbody side by side, realizes high-efficient slagging tap.

Description

Free-section hard rock excavating equipment

Technical Field

The invention relates to the technical field of shaft excavation, in particular to free-section hard rock excavating equipment.

Background

Along with the continuous development of urban space, the demand of urban underground engineering construction such as underground parking lots, underground oil storage depots, underground pile foundations and other super-large-diameter shaft engineering is increasingly vigorous. The traditional vertical shaft is generally constructed by adopting a manual semi-mechanized excavation method or conventional drilling equipment, but in the excavation of the vertical shaft with the ultra-large diameter, the disadvantages of the manual semi-mechanized excavation method on safety and efficiency are more prominent, and the conventional drilling equipment is not suitable for the excavation of the ultra-large section. The super-large diameter vertical shaft is generally shallow in excavation depth and short in project construction period, and customized hard rock tunneling equipment with fixed sections faces huge economic waste. The existing roller cutter head shield is like a roller cutter head rectangular pipe jacking machine with the publication number of CN102337896B, the structural form of a roller cutter head of a composite stratum is adopted, a series of common cutters, overexcavation cutters and special swinging cutters are arranged on a cutter head shell, and the cutters impact broken rocks or cut soil under the driving of a roller, so that the adaptability of the rectangular pipe jacking machine to the stratum is enhanced in various complex stratums, the tunneling capability of the tunnel construction is improved, and the rectangular pipe jacking machine is not suitable for shaft excavation.

Disclosure of Invention

Aiming at the defects in the background art, the invention provides free-section hard rock excavating equipment, which solves the problem of low excavating efficiency of an oversized free-section vertical shaft in the prior art.

The technical scheme of the invention is realized as follows: the utility model provides a free cross section hard rock excavating equipment, is including removing the automobile body, and the front end of removing the automobile body articulates there is the link, is equipped with the drum-type blade disc on the link, and the link is connected with removing the automobile body through flexible actuating mechanism, the drum-type blade disc is corresponding with the defeated sediment mechanism of setting on removing the automobile body. Preferably, the mobile vehicle body is provided with a cab and a base, the base is positioned at the front part of the cab, the connecting frame is hinged on the base, and the bottom of the mobile vehicle body is provided with a crawler traveling mechanism.

Preferably, the telescopic driving mechanism comprises a main oil cylinder, one end of the main oil cylinder is hinged to the connecting frame, the other end of the main oil cylinder is hinged to the base, one end of the adjusting oil cylinder is hinged to the drum-type cutter head, the other end of the adjusting oil cylinder is hinged to the base, and the main oil cylinder is symmetrically arranged on two sides of the connecting frame.

Preferably, the drum-type cutter comprises a cutter barrel, the cutter barrel is connected with a driving device arranged on the connecting frame, a semicircular protective cover is arranged above the cutter barrel, a hob and a slag hole are arranged on the cylindrical surface of the cutter barrel, and a scraper is arranged on the side wall of the slag hole.

Preferably, the hob is arranged on the cutter head cylinder in a row to form a hob row, the hob row is arranged along the generatrix direction of the cutter head cylinder, and the slag hole is arranged between the hob rows. The outer diameter of the semicircular protective cover is larger than that of the cutter head cylinder, and the inner side end of the semicircular protective cover corresponds to the slag conveying mechanism.

Preferably, the slag conveying mechanism comprises a conveying belt arranged on the movable vehicle body, the slag inlet end of the conveying belt corresponds to a slag hole arranged on the drum-type cutter head, and a guide hopper is arranged at the slag outlet end of the conveying belt.

According to the invention, through the excavation of the drum-type cutter head and the crawler-type movement, the flexible and efficient excavation of the hard rock section is realized, and the device is suitable for the excavation of the vertical shaft with shallow depth, ultra-large section and free section, and the equipment investment is reduced. The drum-type blade disc sets up certain quantity slag notch along circumference, transports the rock sediment to rock sediment conveying mechanism through the slag notch, arrives the equipment afterbody side by side, realizes high-efficient slagging tap. The invention has compact structure of the whole machine, can dig hard rocks with different sections, ensures the construction efficiency and the construction safety coefficient and has higher popularization value.

Drawings

In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic top view of the present invention.

Fig. 3 is a schematic structural view of the drum type cutter head.

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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1, embodiment 1, a free cross section hard rock excavating equipment, including removing automobile body 10, be equipped with driver's cabin 7 and base 6 on removing automobile body 10, base 6 is located the front portion of driver's cabin 7 and fixes on removing the automobile body, and link 3 articulates on base 6, and the link rotates around the pin joint, and the bottom of removing automobile body 10 is equipped with crawler 9, and crawler motion is more stable, is applicable to different stratum constructions. The base at the front end of the movable vehicle body 10 is hinged with a connecting frame 3, a drum-type cutter head 1 is arranged on the connecting frame 3, the connecting frame provides support for the drum-type cutter head, the connecting frame 3 is connected with the movable vehicle body through a telescopic driving mechanism, and the telescopic driving mechanism drives the drum-type cutter head to move up and down through the connecting frame to carry out downward tunneling construction. The drum-type cutter head 1 corresponds to a slag conveying mechanism arranged on the movable vehicle body 10, the drum-type cutter head rotates to cut and excavate the stratum, and the slag soil generated in the excavation process enters the slag conveying mechanism and is conveyed out.

Further, the telescopic driving mechanism comprises a main oil cylinder 5, one end of the main oil cylinder 5 is hinged to the connecting frame 3, the other end of the main oil cylinder is hinged to the base 6, and the main oil cylinder stretches and retracts to drive the connecting frame to swing up and down around a hinged point, so that the drum-type cutter head is driven to perform shallow excavation.

As shown in fig. 3, in embodiment 2, the free-section hard rock excavating equipment includes a drum-type cutter head 1, the drum-type cutter head 1 includes a cutter head cylinder 1-1, the cutter head cylinder 1-1 is connected to a driving device 1-5 disposed on a connecting frame 3, two ends of the cutter head cylinder are rotatably connected to the connecting frame through bearings, the driving device may adopt a motor or a motor, and the motor or the motor provides power for rotating the cutter head cylinder. The semicircular protective cover 2 is arranged above the cutter head cylinder 1-1 and matched with the cutter head cylinder, the semicircular protective cover 2 is connected with the movable vehicle body 10 through the adjusting oil cylinder 4, the adjusting oil cylinder is hinged with the semicircular protective cover through an ear seat, and the adjusting oil cylinder stretches and retracts to drive the semicircular protective cover to move up and down so that the semicircular protective cover and the cutter head cylinder are always in proper positions. Preferably, the outer diameter of the semicircular protective cover 2 is larger than that of the cutter head cylinder 1-1, and the inner side end of the semicircular protective cover 2 corresponds to the slag conveying mechanism, namely the inner side end of the semicircular protective cover is positioned above the slag conveying mechanism, so that the slag falling from the semicircular protective cover can just fall onto the slag conveying mechanism. The cylindrical surface of the cutter head cylinder 1-1 is provided with a hob 1-2 and a slag notch 1-3, and the side wall of the slag notch 1-3 is provided with a scraper 1-4. In the rotation process of the cutter head cylinder, the hob digs the stratum, in the digging process, the scraper scrapes muck into the slag hole, then the muck rotates along with the cutter head cylinder, when the rotational slag conveying mechanism is arranged above, the muck falls onto the slag conveying mechanism under the action of gravity, and then the muck is discharged outwards through the slag conveying mechanism.

Preferably, the hobs 1-2 are arranged on the cutterhead cylinder 1-1 in a row to form a hob row, and the hob row is arranged along the generatrix direction of the cutterhead cylinder 1-1, so that the transverse excavation area is increased, and the excavation efficiency is improved. The slag hole 1-3 is set between the hob rows, one slag hole can be set at intervals of 1 or 2 or 3 hob rows, the inclination angle of the bottom plate of the slag hole is smaller than the angle of the upper plate of the slag hole, and the slag hole is a trapezoidal hole, so that slag collection and slag discharge of slag soil are facilitated.

Further, as shown in fig. 2, the slag conveying mechanism includes a conveying belt 8 disposed on the movable vehicle body 10, a slag inlet end of the conveying belt 8 corresponds to a slag hole 1-3 disposed on the drum-type cutter head 1, and a slag discharging end of the conveying belt 8 is provided with a material guiding hopper 11 for facilitating smooth discharge of slag soil. The other structure is the same as embodiment 1.

The process flow is as follows: when the tunneling operation is needed, the driving set is started to drive the cutter head to rotate in the anticlockwise direction, the main oil cylinder extends out to press the cutter head into the rock surface, and meanwhile, the crawler belt is started to propel the whole machine to move forwards. Rock is crushed by the rolling action of the hob, and bottom rock slag is scraped into the slag hole by the scraper. And the rock slag slides into the slag soil conveyor under the action of gravity and is conveyed to the tail part of the equipment when rotating to the lower part of the rear side of the cutter head along with the rotation of the cutter head and the rotation of the slag hole. The depth of the cutter head pressed into the rock surface can be controlled through the extension of the main oil cylinder, when the cutter head does not work, the main oil cylinder is contracted to lift the cutter head, and the moving position is driven through the crawler. The position of protection casing can be adjusted through the adjustment hydro-cylinder, and the protection casing can prevent on the one hand that the detritus from causing the injury to the driver's cabin, can assist the transport of detritus in the cinder notch on the one hand. By controlling the movement of the crawler belt, the excavation of different areas can be realized. The equipment can adapt to different excavation sections, has compact structure of the whole machine, and can carry out shaft excavation conveniently and flexibly.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a free cross section hard rock excavating equipment which characterized in that: the slag conveying device comprises a moving vehicle body (10), wherein the front end of the moving vehicle body (10) is hinged with a connecting frame (3), a drum-type cutter head (1) is arranged on the connecting frame (3), the connecting frame (3) is connected with the moving vehicle body through a telescopic driving mechanism, and the drum-type cutter head (1) corresponds to a slag conveying mechanism arranged on the moving vehicle body (10).

2. The free face hard rock excavation apparatus of claim 1, wherein: the movable trolley is characterized in that a cab (7) and a base (6) are arranged on the movable trolley body (10), the base (6) is located at the front part of the cab (7), the connecting frame (3) is hinged to the base (6), and a crawler traveling mechanism (9) is arranged at the bottom of the movable trolley body (10).

3. The free face hard rock excavation apparatus of claim 2, wherein: the telescopic driving mechanism comprises a main oil cylinder (5), one end of the main oil cylinder (5) is hinged to the connecting frame (3), the other end of the main oil cylinder is hinged to the base (6), and the main oil cylinder (5) is symmetrically arranged on two sides of the connecting frame (3).

4. The free face hard rock excavation equipment of any one of claims 1 to 3, wherein: the drum-type cutter head (1) comprises a cutter head cylinder (1-1), the cutter head cylinder (1-1) is connected with a driving device (1-5) arranged on a connecting frame (3), a semicircular protective cover (2) is arranged above the cutter head cylinder (1-1), the semicircular protective cover (2) is connected with a movable vehicle body (10) through an adjusting oil cylinder (4), a hob (1-2) and a slag notch (1-3) are arranged on the cylindrical surface of the cutter head cylinder (1-1), and a scraper (1-4) is arranged on the side wall of the slag notch (1-3).

5. The free face hard rock excavation apparatus of claim 4, wherein: the hob (1-2) is arranged on the cutter head cylinder (1-1) in a row to form a hob row, the hob row is arranged along the generatrix direction of the cutter head cylinder (1-1), and the slag hole (1-3) is arranged between the hob rows.

6. The free face hard rock excavation apparatus of claim 5, wherein: the outer diameter of the semicircular protective cover (2) is larger than that of the cutter head cylinder (1-1), and the inner side end of the semicircular protective cover (2) corresponds to the slag conveying mechanism.

7. The free face hard rock excavation equipment of any one of claims 1 to 3, 5, and 6, wherein: the slag conveying mechanism comprises a conveying belt (8) arranged on the movable vehicle body (10), the slag inlet end of the conveying belt (8) corresponds to a slag hole (1-3) formed in the drum-type cutter head (1), and the slag outlet end of the conveying belt (8) is provided with a guide hopper (11).