KR100322624B1 - Tunneling machines enable for coming in and out front body - Google Patents

Abstract

The present invention discloses a tunnel excavator capable of entering and exiting a front barrel.

The present invention is a cylindrical hollow shaft 10 having a hollow portion 11 is formed in the center of the front cylinder 110 is fixed, the bearing is coupled to the outer periphery of the hollow shaft 10 and gear coupled to the reduction gear drive force The transmission gearbox 20 is installed, the first crusher 30 of the trumpet type is fixed to the outer periphery of the gearbox 20 in the axial direction, axially at one end of the hollow shaft (10) A second crusher 40 fixedly coupled to the crusher 31 and the first passage 32 together with the first crusher 30 is installed, and the door may be opened or closed on the front surface of the second crusher 40. 50) is installed.

Therefore, by securing a passageway and an internal working space for entering and exiting the rear of the cutter motor at the center of the tunnel excavator, it is possible to respond quickly to unexpected problems occurring in the front barrel and the cutter head during tunnel drilling. The effect which can improve efficiency can be acquired.

Description

Tunnel excavator that can access the front tube {TUNNELING MACHINES ENABLE FOR COMING IN AND OUT FRONT BODY}

The present invention relates to a tunnel excavator that is used in the propulsion method, and more particularly, tunnel tunnel capable of accessing the front tube to secure a passage and an internal working space that can enter and exit the rear of the cutter motor in the center of the tunnel excavator It is about the flag.

The propulsion method inserts a steel cylindrical excavation machine called a micro tunneling machine or a semi-shield machine into a vertical work tool, so that a cutter head for earth excavation is mounted on the tip of the machine. The tunnel is excavated while rotating and the membrane face is prevented from collapsing through the membrane by various auxiliary methods (water and chemical injection) while pushing and pushing the propulsion pipes installed at the rear of the excavating machine with hydraulic jacks one by one. To dig.

1 and 2 are a front view and a side view showing an embodiment of a tunnel excavator according to the prior art.

As shown, the tunnel excavator 100 according to the prior art is composed of a front cylinder 110 and a tail body 120 of a steel cylinder. In front of the front cylinder 110, a roller cutter 131, a cutter head 130 provided with a main bit 132 and an opening 133 are installed to be rotatable. A plurality of cutter motors 140 and a reducer 141 are installed in the rear cylinder 120 to drive the cutter head 130, and the reducer 141 is disposed on the central axis of the front cylinder 110. A drive shaft 142 is geared and rotated, and a cone crusher 150 having a conical shape is installed at an outer circumference of the drive shaft 142 and rotates together with the drive shaft 142. In addition, the end of the drive shaft 142 is fixedly coupled to the cutter head 130 to rotate the cutter head 130.

The first space 111 between the inclined surface plate 151 of the cone crusher 150 and the inner surface of the front cylinder 110 forms a space that gradually narrows toward the rear. Finally, the first space 111 is formed through the narrowly formed passage 112. 2 space 113 is connected. On the other hand, the inner lower end of the rear barrel 120 is provided with a fang pipe 161 and a manifold pipe 162 so that the crushed soil and rock can be banned, the ends of these fang pipe 161 and the banney pipe 162 Is connected to one end of the second space 113, the high-pressure water flow supplied through the duct pipe 161 passes through the membrane (the first space and the second space), and the vane pipe (with 162).

The front cylinder 110 and the rear cylinder 120 are connected by a plurality of steering jacks (170) to pull or push each direction modification jack 170 to adjust the direction of the front cylinder (110). The rear cylinder 120 is provided with a hydraulic device 171 for supplying hydraulic pressure to these direction correction jack 170 and a plurality of solenoid valves 172 for adjusting the stroke of the direction correction jack 170.

At one end of the rear cylinder 120 is provided a panel 180 is provided with a scaled target and a plurality of gauges, the rear of the panel 180 is installed with a camera 181 for observing this cockpit located on the ground You can observe this at Meanwhile, the direction of the tunnel excavator 100 may be measured as the laser beam installed and scanned in the vertical work tool is displayed at a predetermined position of the target, and by adjusting the respective direction correction jacks 170 based on this. The direction of the tunnel excavator 100 may be guided in the desired direction.

Excavation work and operation of the tunnel excavator according to the prior art made of such a structure is made as follows.

First, the vertical work tool is excavated at a predetermined position on the ground, and the tunnel excavator 100 described above is inserted into the vertical work tool and installed. Aligning the cutter head 130 in the excavation direction, one propulsion pipe to the rear of the rear cylinder 120, and using a reaction force to install a hydraulic jack for applying the pressing force to the tunnel excavator 100 in the excavation direction.

The tunnel excavator 100 is pushed together with the propulsion pipe in the drilling direction by the hydraulic jack, the front of the cutter head 130 is in close contact with the ground. The driving force of the cutter motor 140 forms a high torque while passing through the reducer 141 to rotate the cone crusher 150 and the cutter head 130. The roller cutter 131 and the main bit 132 rotate with the cutter head 130 to crush the soil and rock. The crushed soil and rock are pushed into the first space 111 through the opening 133. The soil and rock pushed into the first space 111 are crushed once again between the inclined surface plate 151 of the rotating cone crusher 150 and the inner surface of the front cylinder 110 to be formed through a narrow passage 112. 2 is pushed into the space (113). Soil and rock that are pushed into the second space 113 is mixed with the water flow supplied through the fang pipe 161 is discharged to the ban pipe (162). As described above, the propulsion tube is pushed by the length of the tunnel excavator 100, and the hydraulic jack is retracted and the operation of inserting another propulsion tube is repeated.

However, the drive shaft 142 for rotating the cutter head 130 in the tunnel excavator according to the prior art has a structure that is located on the central axis of the tunnel excavator 100. As such, the power transmission method of the drive shaft 142 located in the center of the tunnel excavator 100 occupies most of the internal space of the center of the tunnel excavator 100, that is, the front tube 110 of the tunnel excavator 100, that is, The operator cannot enter the rear of the cutter head 130. Therefore, it is difficult not only to determine the cause of the unexpected problems occurring in the front cylinder 110 and the cutter head 130 during the tunnel excavation, but even if the cause is identified, the worker cannot directly enter the work there. In this case, there was an inconvenience to solve the problem by excavating a vertical work tool separately from the ground on which the cutter head 130 of the tunnel excavator 100 is located.

Therefore, the present invention is to solve such a conventional problem, by improving the driving force transmission method transmitted from the cutter motor to the cutter head, the operator can enter the front barrel of the tunnel excavator, and secure the internal space required for work Accordingly, an object of the present invention is to provide a tunnel excavator capable of entering and exiting a front cylinder that can quickly respond to unexpected problems occurring in the front cylinder and the cutter head during tunnel drilling.

The present invention for realizing the above object is provided with a front cylinder (tail body) of the steel cylinder and the tail body (cutter head) rotatably installed, and to drive the cutter head inside the rear cylinder A plurality of cutter motors (reducers) and reducers (reducers) and drive shafts are provided, and the unidirectional pipe and the vane pipe are installed at the inner lower end of the rear cylinder, and the front cylinder and the rear cylinder are a plurality of steering jacks. In the tunnel excavator coupled to the hydraulic device and a plurality of solenoid valves, a cylindrical hollow shaft having a hollow portion fixed to the center of the rear cylinder, and the outer circumferential edge of the hollow shaft bearing and gear coupling with the reduction gear to transfer the driving force Gearbox, a horn-shaped first crusher axially fixed to the outer circumference of the gearbox, and one end of the hollow shaft axially fixed to the first And a second crusher which forms a crushing unit and a first passage together with the crusher, and a door which is installed to be opened and closed on the front surface of the second crusher.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

1 is a front view showing an embodiment of a tunnel excavator according to the prior art,

2 is a front view of the cutter head of the tunnel excavator according to the prior art,

Figure 3 is a front view showing a tunnel excavator capable of entering and exiting the front barrel in accordance with a preferred embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

10 hollow shaft 11 hollow portion 12 support bracket

20 gearbox 30 first crusher 31 first shredding space

32: first passage 33: second crushing space 40: second crusher

50: door 100: tunnel excavator 110: front cylinder

120: rear cylinder 130: cutter head 140: cutter motor

141: reducer 161: tunnel piping 162: banney piping

170: direction modifying jack 171: hydraulic device 172: solenoid valve

180: panel

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention.

Figure 3 is a front view showing a tunnel excavator capable of entering and exiting the front barrel in accordance with a preferred embodiment of the present invention. In addition, about the part which consists of the same structure as before, the same code | symbol as the code | symbol shown in FIG. 1 and FIG. 2 is described and demonstrated.

As shown, the front and rear tunnel excavators according to the present invention is provided with a front cylinder (110) and a tail cylinder (120) of the steel cylindrical and the cutter head 130 is installed to be rotatable; In the rear cylinder 120, a plurality of cutter motors 140, a reducer 141, and a driving shaft 142 are provided to drive the cutter head 130, and the inner side of the rear cylinder 120 is provided. The fang pipe 161 and the manifold pipe 162 are installed at the lower end, and the front cylinder 110 and the rear cylinder 120 are coupled by a plurality of steering jacks 170, and the hydraulic device 171 and a plurality of The solenoid valve 172 is installed, the panel 180 and the camera 181 is installed at one end of the rear cylinder 120. A plurality of openings 133 are drilled on the front surface of the cutter head 130, and a roller cutter 131 and a main bit 132 are installed.

In particular, a cylindrical hollow shaft 10 having a hollow portion 11 formed at the center of the front cylinder 110 is fixedly installed, bearing-coupled to the outer periphery of the hollow shaft 10 and gear-coupled with a reduction gear to drive a driving force. The transmission gearbox 20 is installed, the first crusher 30 of the trumpet type is fixed to the outer periphery of the gearbox 20 in the axial direction, and fixed to the end of the hollow shaft 10 in the axial direction. A second crusher 40 coupled to the crusher 31 and the first passage 32 together with the first crusher 30 is installed, and the door 50 is openable on the front of the second crusher 40. ) Is installed.

Features of the present invention are described in more detail.

The hollow portion 11 of the hollow shaft 10 and the hollow portion 41 of the second crusher 40 provide an inner space at the center of the front cylinder 110 so that the operator can cut the cutter through the hollow portions 11 and 41. It allows to enter the rear of the head 130. This hollow shaft 10 is supported by a support bracket 12 extending from the inside of the front cylinder (110).

On the other hand, the outer periphery of the hollow shaft 10, the gear box 20 is bearing-coupled, the gear box 20 is gear-coupled with the reducer 141. The gearbox 20 is composed of a main gear 21 having a gear tooth formed on a ring-shaped outer periphery, a pinion gear 22 coupled to a reduction shaft of the reduction gear 141, and a plurality of bearings 23.

The first crusher 30 is screwed in the axial direction on the front of the gearbox 20 as described above. The first crusher 30 has an approximately trumpet shape extending forward and extending from the outer periphery of the gearbox 20. The end of the first crusher 30 is extended to a degree similar to the diameter of the front cylinder 110, the cutter head 130 is coupled to the end of the outer crusher (30). The first crusher 30 is rotated together with the cutter head 130 by receiving the driving force of the gearbox 20.

On the other hand, the second crusher 40 is installed in the inward direction of the outer grinder 30. The second crusher 40 is fixedly coupled to one end of the hollow shaft 10 in the axial direction, and the end of the second crusher 40 has a shape opposite to the inclined surface plate 34 of the first crusher 30 along the outer circumferential surface thereof. Of the inclined face plate 42 is formed between the inclined face plate (34, 42) to form a circular first crushing space 31 gradually narrower toward the rear. In addition, a circular first passage 32 is formed inside the first crushing space 31, and a circular second crushing space 33 is formed behind the first passage 32.

Meanwhile, doors 50 that can be opened and closed are installed on the front of the second crusher 40 and the rear of the hollow shaft 10, respectively, to open and close the door 50 when the operator wants to pass through the hollow parts 11 and 41. You can enter.

As described above, the inner lower end of the rear cylinder 120, the tunable pipe 161 and the banney pipe 162 is installed to ban the crushed soil and rock. In addition, the front cylinder 110 and the rear cylinder 120 is connected to a plurality of steering jack (steering jack; 170) to adjust the direction of the front cylinder 110 by pulling or pushing the respective direction modification jack (170). have. The rear cylinder 120 is provided with a hydraulic device 171 for supplying hydraulic pressure to these direction correction jack 170 and a plurality of solenoid valves 172 for adjusting the stroke of the direction correction jack 170.

At one end of the rear cylinder 120 is provided a panel 180 is provided with a scaled target and a plurality of gauges, the rear of the panel 180 is installed with a camera 181 for observing this cockpit located on the ground You can observe this at Meanwhile, the direction of the tunnel excavator 100 may be measured as the laser beam installed and scanned in the vertical work tool is displayed at a predetermined position of the target, and by adjusting the respective direction correction jacks 170 based on this. The direction of the tunnel excavator 100 may be guided in the desired direction.

Hereinafter, the basic operation of the tunnel excavator can be entered into the interior space according to the present invention.

The tunnel excavator 100 is propelled together with the propulsion pipe (not shown) in the drilling direction by the hydraulic jack not shown to form a membrane pressure on the front of the cutter head 130. The driving force of the cutter motor 140 forms a high torque while passing through the reducer 141 to rotate the gearbox 20. The gearbox 20 rotates the first crusher 30 and the cutter head 130 to crush the soil and rock in front of the cutter head 130 by the roller cutter 131 and the main bit 132. The crushed soil and rock are crushed by the first crusher 30 and the second crusher 40 which are rotated while being pushed into the first crushing space 31 through the opening 133 and narrowly formed. It is pushed into the second crushing space (33) through the (). Soil and rock pushed into the second crushing space 33 is mixed with the water flow supplied through the fang pipe 161 is discharged to the banney pipe 162.

As described above, according to the present invention, the central space of the tunnel excavator 100 is a worker's access passage by the hollow part 11 formed by the hollow shaft 10 and the hollow part 41 formed in the center of the second crusher 40. Can be used as

That is, even if unexpected problems occur in the front cylinder 110 and the cutter head 130 during tunnel excavation, the operator opens the door 50 and the front cylinder of the tunnel excavator 100 through the hollow parts 11 and 41 ( 110), and since the internal space required for the work is secured, it can respond quickly.

In the above description, it should be understood that those skilled in the art can make modifications and changes to the present invention without changing the gist of the present invention as merely illustrative of a preferred embodiment of the present invention.

As described above, according to the present invention, unexpected problems occurring in the front barrel and the cutter head during tunnel excavation by securing a passageway and an internal working space for entering and exiting the rear of the cutter motor at the center of the tunnel excavator are as follows. It is possible to respond quickly to, resulting in the effect of improving drilling efficiency.

Claims (1)

A plurality of cutter motors having a front cylinder, a tail body, and a cutter head rotatably installed in a steel cylinder, and for driving a cutter head inside the rear cylinder. And a reducer (reducer) and a drive shaft is provided, the fang pipe and the vane pipe is installed in the inner lower end of the rear cylinder, the front cylinder and the rear cylinder is coupled by a plurality of steering jacks and a hydraulic device and a plurality of In a tunnel excavator equipped with a solenoid valve, A cylindrical hollow shaft having a hollow portion fixed to the center of the rear cylinder; A gear box coupled with an outer circumference of the hollow shaft and gear-coupled with the reduction gear to transmit a driving force; A trumpet-shaped first crusher fixedly coupled to an outer circumference of the gearbox; A second crusher fixedly coupled to one end of the hollow shaft and forming a crushing portion and a first passage together with the first crusher; Tunnel excavator that can enter and exit the front tube including a door that is installed to open and close the front of the second crusher.