CN105822316A - Integrated pit tunnel heading machine - Google Patents

Abstract

The invention discloses an integrated pit tunnel boring machine, which comprises a machine frame and a drilling and sawing mechanism. Motor, saw rope and a plurality of guide wheels, the drive motor, main motor, telescopic seat and a plurality of guide wheels are all fixed on the frame, the arm rod is fixed on the telescopic seat, and the transmission shaft is sleeved on the arm In the rod, the drive motor is connected to the transmission shaft in the arm; when drilling, the drill cylinder is fixed at the end of the transmission shaft, and the drive motor drives the drill cylinder to work through the transmission shaft; when sawing, the cutting wheel is movable on the arm At the end, the main motor drives the cutting wheel to work through the saw wire and multiple guide wheels. The technical problem solved by the present invention is to integrate the drilling mechanism and the sawing mechanism in the existing wire saw roadheader, so that the reciprocating entry and exit of the equipment is not required when the tunnel is excavated, which reduces the calibration of the equipment and can quickly Realize the excavation of the pit tunnel.

Description

Integrated Pit Tunnel Boring Machine

technical field

The invention relates to the technical field of pit tunnel excavation, in particular to an integrated pit tunnel boring machine.

Background technique

In the excavation of tunnels or tunnels, the commonly used measures are blasting excavation or shield machine excavation. Among them, there are serious safety hazards in blasting excavation, and the construction quality is difficult to guarantee. The phenomenon of over-excavation and under-excavation is very prominent. When crossing areas with complex geological conditions, the safety risks are multiplied, so its use is very cautious. Shield machine excavation is the use of shield machine equipment for excavation. Shield machine equipment integrates optical, mechanical, electrical, hydraulic, sensing, and information technologies. It has the functions of excavating and cutting soil, conveying soil, and assembling tunnel lining , measurement-oriented correction and other functions, but due to its high cost, which determines the high construction cost, it is generally only used in the construction of urban underground transportation. In addition, the excavation of the shield machine equipment is achieved by crushing the soil (including rocks, etc.), which reduces the availability of the excavated soil.

However, whether it is the above-mentioned blasting excavation or shield machine excavation, they are usually only suitable for large-scale tunnel or tunnel excavation, and their excavation methods determine that they cannot be used in the excavation process of small-scale tunnels or tunnels. For this reason, the prior art with Chinese Patent No. "201520250375.3" disclosed a wire saw roadheader on September 2, 2015. Hole mechanism, sawing mechanism, tunnel boring machine also includes vault forming mechanism; vault forming mechanism is mainly composed of vault forming frame and saw blade group, saw blade group is mainly composed of transmission shaft and coaxial Consisting of multiple saw blades with a driven wheel on the transmission shaft, the saw blade group is mounted on a height-adjustable lifting frame through bearings, and the lifting frame is assembled on the vault forming frame, the lifting frame and/or the vault forming frame A transmission motor for driving the saw blade group to perform work is arranged on the top. This patent can perform vault treatment on the top of the pit tunnel while cutting relatively complete rock blocks. It is controlled by electricity and has high automation and flexibility. But in the actual excavation process, there are still many deficiencies as follows: 1. The drilling mechanism, the sawing mechanism and the vault forming mechanism are all independent mechanisms. →The drilling mechanism exits → the sawing mechanism enters the sawing → the sawing mechanism exits → the vault forming mechanism enters the construction → the vault forming mechanism exits" such a construction process cycle construction, there are complex construction procedures and low construction efficiency Defects. 2. The entire roadheader requires the cooperation of three sets of independent mechanisms to complete the construction of the pit tunnel, which requires the manufacture of three sets of independent equipment, resulting in extremely high manufacturing costs for the entire roadheader. 3. The vault forming mechanism adopts the structure of the saw blade group to form the vault, and the saw blade group is extremely easy to wear when cutting the rock mass, which further leads to an increase in the excavation cost of the pit tunnel. 4. During excavation, the three sets of equipment are constructed alternately according to the process, but the next set of equipment needs to be calibrated before construction. For example, after the drilling mechanism drills, the sawing mechanism needs to be calibrated with the drilled hole before entering construction. It will inevitably lead to a substantial reduction in construction efficiency. 5. In order to ensure the stability and accuracy of the excavation, the three sets of independent equipment are respectively equipped with three sets of slow-speed travel systems, but the slow-speed travel systems also lead to slow entry and exit speeds of the three sets of equipment, which also affects the construction efficiency.

Contents of the invention

The purpose of the present invention is to solve the above-mentioned problems existing in the prior art, and to provide an integrated tunnel boring machine. The technical problem solved by the present invention is to combine the drilling mechanism and the sawing mechanism in the existing wire saw type boring As a whole, there is no need for reciprocating entry and exit of equipment when excavating a pit tunnel, which reduces the calibration of the equipment and can quickly realize the excavation of the pit tunnel.

To achieve the above object, the technical scheme adopted in the present invention is as follows:

An integrated pit tunnel boring machine is characterized in that it includes a frame and a drilling and sawing mechanism, and the drilling and sawing mechanism includes an arm rod, a transmission shaft, a drive motor, a telescopic seat, a drill barrel, a cutting wheel, a main Motor, saw rope and a plurality of guide wheels, the drive motor, main motor, telescopic seat and a plurality of guide wheels are all fixed on the frame, the arm rod is fixed on the telescopic seat, and the transmission shaft is sleeved on the arm In the rod, the drive motor is connected with the transmission shaft in the boom rod;

When drilling, the drill barrel is fixed at the end of the drive shaft, and the drive motor drives the drill barrel to work through the drive shaft;

When sawing, the cutting wheel is movably arranged at the end of the arm, and the main motor drives the cutting wheel to work through the saw rope and a plurality of guide wheels.

The number of the drilling and sawing mechanism is multiple sets, and the arms in the multiple sets of drilling and sawing mechanisms are distributed in a rectangle, and when sawing, the main motor simultaneously drives multiple sets of drilling holes through the saw rope and a plurality of guide wheels. The cutting wheel in the saw mechanism rotates.

The number of the drilling and sawing mechanism is multiple sets, and the arms in the multiple sets of drilling and sawing mechanisms are distributed in a rectangle and in an arc, and the arms in the arc are located above the arms in the rectangle. ; Wherein, when sawing, the number of cutting wheels connected to the arms distributed in a rectangle is one, and the number of cutting wheels connected to the arms distributed in an arc is three, and the main motor passes through the saw The rope and a plurality of guide wheels simultaneously drive the cutting wheels in the drilling and sawing mechanism to rotate.

The three cutting wheels on the arm include a middle cutting wheel whose axis coincides with the axis of the arm and two inclined cutting wheels whose axis lines are respectively perpendicular to the axis of the arm. The cutting wheels are arranged symmetrically on both sides of the middle cutting wheel.

A connecting seat and an anti-bending seat are fixedly arranged on the arm, the cutting wheel is connected to the arm through the connecting seat, and the cutting wheel is located between the connecting seat and the anti-bending seat, and the anti-bending seat is movably provided with Anti-bending wheels.

A reinforced steel plate is fixedly arranged on the arm rod.

The boring machine also includes a frame traveling mechanism, the frame traveling mechanism includes traveling wheels, tracks, a slow traveling system and a fast traveling system, the number of the traveling wheels is multiple, and the plurality of traveling wheels are arranged on the frame On both sides of the lower part, chain grooves are arranged on the track, and the slow-speed walking system includes a secondary reducer and a sprocket connected to the secondary reducer. The slow-speed walking system controls the frame through the sprocket and the chain groove Walking at a slow speed; the fast walking system includes two sets of first-level reducers, which are respectively connected to the running wheels on both sides of the lower part of the frame through gears, and the fast walking system is connected through two sets of first-level reducers and the running wheels Control the rack to move fast.

The drive motor is connected with the drive shaft through a belt or a gear transmission gearbox.

The frame is also provided with an adjustment rod for controlling the expansion and contraction of the telescopic seat, and the adjustment rod is connected with an adjustment motor or a hydraulic motor.

A control cabinet is also arranged on the frame.

The advantage of adopting the present invention is:

1. In the present invention, according to different excavation procedures, the drill barrel is fixed at the end of the transmission shaft when drilling, and the cutting wheel is arranged at the end of the arm when sawing. Such a structure separates and cooperates with the two sets in the prior art. The unique drilling mechanism and sawing mechanism are combined into one, forming an integrated roadheader capable of drilling and sawing, reducing the number of repetitive parts in the three sets of equipment, and greatly reducing the manufacturing cost of the equipment. In addition, during the construction of this integrated roadheader, the drill tube is used to drill holes first. After the drilling is completed, only the drill tube is removed and the cutting wheel is installed to continue the construction, which not only solves the problem of three sets of equipment in the prior art. The problem of repeated entry and exit during the process also reduces the calibration process of the equipment, greatly improves the excavation efficiency, and can quickly realize the excavation of the pit tunnel. Compared with the existing technology represented by the Chinese patent number "201520250375.3", the present invention greatly reduces the preparation cost of equipment, improves the excavation efficiency, facilitates transportation, etc., and it has been proved by experiments that after adopting the present invention, the pit tunnel The excavation efficiency is three times that of the excavation machine with the Chinese patent number "201520250375.3".

2. In the present invention, the arms in multiple sets of drilling and sawing mechanisms are distributed in a rectangle, that is, a plurality of arms are distributed in a rectangle in the same orthographic projection plane. This arrangement is especially suitable for tunneling in rectangular pits and can quickly Realize the excavation of rectangular pit tunnels. When sawing, the main motor simultaneously drives the cutting wheels in multiple sets of drilling and sawing mechanisms to rotate through the saw rope and multiple guide wheels, so that the cutting wheels on multiple arms can cut the rock mass synchronously, ensuring Digging stability.

3. In the present invention, the arms in multiple sets of drilling and sawing mechanisms are distributed in a rectangle and an arc respectively, and the arms distributed in an arc are located above the arms distributed in a rectangle. This structure is particularly suitable for arched The excavation of pit tunnels can open arched tunnels in one step. However, the roadheader in the prior art must first excavate the rectangular pit tunnel when excavating the arched tunnel, and then form the vault of the rectangular pit tunnel. In contrast, in the present invention, the arms are arranged in a rectangular distribution structure and an arc distribution structure, which can greatly simplify the construction process and greatly improve the driving efficiency. In addition, the number of cutting wheels on the arc-shaped distribution arms is all set to three structures, which is beneficial to quickly form the vault.

4. In the present invention, the two inclined side cutting wheels are symmetrically arranged on both sides of the middle cutting wheel, which can effectively make the saw rope wind up into an approximate arch shape, which is convenient for one-time formation of arch sawing.

5. In the present invention, the anti-bending seat and the anti-bending wheel on the anti-bending seat can prevent the drive shaft from bending and deforming during construction, which is beneficial to prolonging the service life of the equipment.

6. In the present invention, the rigidity of the arm can be enhanced by reinforcing the steel plate to prevent bending and deformation of the arm.

7. In the present invention, the slow walking system can guarantee the stability during construction, and the fast walking system can make the whole boring machine withdraw from the pit tunnel quickly after the construction is completed, and through the cooperation of the slow walking system and the fast walking system, It not only guarantees the stability during excavation, but also can move the whole excavation machine quickly when excavation is not needed.

8. In the present invention, the drive motor is connected to the transmission shaft through a belt or a gear transmission gearbox. These two connection methods make the roadheader suitable for the construction of pit tunnels in different working conditions.

9. In the present invention, the adjustment rod is connected with the adjustment motor or the hydraulic motor, so that the telescopic seat can automatically expand and contract, and the automatic adjustment of the arm rod is realized.

10. In the present invention, the control cabinet is arranged on the frame, and the remote control system is used for remote control, which reduces the use of wires and cables and reduces construction costs. It can not only avoid safety accidents caused by wires and cables, but also has the advantages of convenient operation. The advantages.

Description of drawings

Fig. 1 is the structural representation when drilling in embodiment 1;

Fig. 2 is the structural representation when cutting in embodiment 1;

Fig. 3 is the schematic diagram of the structure that telescoping seat is connected with adjusting rod in embodiment 1;

Fig. 4 is the structural representation of adopting hydraulic oil cylinder and hydraulic station in embodiment 1;

Fig. 5 is the structural representation of drive shaft belt drive in embodiment 1;

Fig. 6 is the structural representation of the rectangular pit tunnel after the construction of embodiment 1;

Fig. 7 is the structural representation when drilling in embodiment 2;

Fig. 8 is the structural representation when cutting in embodiment 2;

Fig. 9 is the structural representation of transmission shaft gear transmission in embodiment 2;

Fig. 10 is the structural representation when drilling in embodiment 3;

Fig. 11 is the structural representation when cutting in embodiment 3;

Fig. 12 is the structural representation of the arch pit tunnel after the construction of embodiment 3;

Fig. 13 is the structural representation when drilling in embodiment 4;

Fig. 14 is the structural representation when cutting in embodiment 4;

Fig. 15 is a schematic structural view of the frame traveling mechanism in Embodiment 5;

The labels in the figure are: 1. frame, 2. arm lever, 3. drive motor, 4. telescopic seat, 5. drill barrel, 6. cutting wheel, 7. main motor, 8. guide wheel, 9. connecting seat, 10, walking wheel, 11, anti-bending seat, 12, anti-bending wheel, 13, reinforced steel plate, 14, belt, 15, gear transmission gearbox, 16, adjustment lever, 17, control cabinet, 18, travel motor one, 19 , two-stage reducer, 20, two travel motors, 21, three travel motors, 22, one-stage reducer, 23, track, 24, hydraulic cylinder, 25, hydraulic station.

detailed description

Example 1

An integrated pit tunnel boring machine, including a frame 1 and a drilling and sawing mechanism, the drilling and sawing mechanism includes an arm 2, a transmission shaft, a drive motor 3, a telescopic seat 4, a drill barrel 5, and a cutting wheel 6 , main motor 7, saw rope and a plurality of guide wheels 8, the drive motor 3, main motor 7, telescopic seat 4 and a plurality of guide wheels 8 are all fixed on the frame 1, and the arm bar 2 is fixed on the telescopic seat 4, the transmission shaft is sleeved in the arm 2, and the driving motor 3 is connected with the transmission shaft in the arm 2 through a belt 14; when drilling, the drill tube 5 is fixed on the end of the transmission shaft, and the driving motor 3 Drive the drill cylinder 5 to work through the transmission shaft; when sawing, the cutting wheel 6 is movably arranged at the end of the arm bar 2, and the main motor 7 drives the cutting wheel 6 to work through the saw rope and a plurality of guide wheels 8, and forms a wire saw cycle.

In this embodiment, the frame 1 is a frame-shaped square structure welded by steel parts such as angle steel and channel steel. structure, the encapsulation shell is not shown in the drawings).

In this embodiment, the plurality of guide wheels 8 are reasonably distributed on the frame 1, part of the guide wheels 8 are directly fixed on the frame 1, and some of the guide wheels 8 are fixed on the arm bar 2 on the frame 1, so that For the winding of the saw wire. Among them, to avoid excessive vibration of the saw rope when the arm lever 2 is too long, in addition to the guide wheel 8, a rope stabilization wheel is also provided on the frame 1, and a rope stabilization guide is also provided on the arm lever 2. The guide wheel 8, the rope stabilization The concrete arrangement structure of wheel and stable rope guide is good to be able to guarantee that cutting wheel 6 cuts stably.

In this embodiment, the number of the drilling and sawing mechanism is multiple sets, and the arm bars 2 in the multiple sets of drilling and sawing mechanisms are distributed in a rectangle, that is, the arms 2 in the multiple sets of drilling and sawing mechanisms are in the same normal position. The projected plane is distributed in a rectangle, which is especially suitable for excavation of rectangular pit tunnels. In connection with this application, the number of drilling and sawing mechanisms is preferably six sets, and the six sets of drilling and sawing mechanisms are symmetrically arranged on both sides of the frame 1 . Wherein, the number of drilling and sawing mechanisms is determined according to the size of the tunnel to be excavated, and is not limited to the above-mentioned preferred method. When the roadheader is performing sawing work, the main motor 7 simultaneously drives the cutting wheels 6 in multiple sets of drilling and sawing mechanisms to rotate through the saw rope and a plurality of guide wheels 8 to form a wire saw cycle.

In this embodiment, the arm 2 is fixedly provided with a connecting seat 9 and an anti-bending seat 11, the cutting wheel 6 is connected to the arm 2 through the connecting seat 9, and the cutting wheel 6 is located between the connecting seat 9 and the anti-bending Between the seats 11, an anti-bending wheel 12 is movably arranged on the anti-bending seat 11, and the anti-bending wheel 12 is located at the front end of the roadheader in the driving direction. During excavation, earlier drill by drill tube 5, after drilling is finished, take off drill tube 5, replace cutting wheel 6 and install anti-bending wheel 12, during cutting, anti-bending wheel 12 arrives at the hole wall of drilled hole, Prevents drive shaft from bending during cutting.

In this embodiment, the arm 2 is provided with a reinforced steel plate 13, and the reinforced steel plate 13 is directly welded and fixed on the arm 2 to enhance the rigidity of the arm 2 and prevent it from bending during construction.

In this embodiment, the number of the booms 2 corresponds to the number of telescopic seats 4, and each boom 2 is correspondingly connected to two sets of telescopic seats 4, and the extension of each boom 2 is controlled by two sets of telescopic seats 4. out and in. Further, the frame 1 is also movably provided with adjustment rods 16 for controlling the expansion and contraction of the telescopic seat 4, and each adjustment rod 16 controls two sets of telescopic seats 4 through bevel gears. According to different needs, the adjustment rod 16 Its rotation can be controlled manually, and its rotation can also be automatically controlled by adjusting the motor or hydraulic motor, so as to achieve the purpose of automatically controlling the expansion and contraction of the expansion seat 4 . Further, the telescopic seat 4 can also directly use the hydraulic cylinder 24 as the telescopic part to control the expansion and contraction of the arm 2 , and the hydraulic cylinder 24 cooperates with the hydraulic station 25 to control the expansion and contraction of the arm 2 .

This embodiment is mainly used for excavation of rectangular tunnels. Its implementation principle is as follows: install the drill barrel 5 on six transmission shafts, control the frame 1 to move to the position to be excavated, and adjust the six transmission shafts to the appropriate drilling holes through the adjustment rod 16 position, and then drive the motor 3 to control the drill cylinders 5 on the six drive shafts to drill at the same time. After the drilling is completed, control the drill cylinder 5 to withdraw from the drilling hole, disassemble the drill cylinder 5 and install the cutting wheel 6 and anti-bending on the arm 2 Wheel 12, then the main rope wheel on the main motor 7, a plurality of guide wheels 8 and a plurality of cutting wheels 6 are put on the saw rope simultaneously, then start the main motor 7 to drive the cutting wheel 6 to cut the rock mass, when cutting to a certain depth , stop cutting, frame 1 withdraws, takes out the rock mass, then disassembles cutting wheel 6 and installs drill tube 5, repeats the above-mentioned procedure and can dig into the pit tunnel again, until the completion of the rectangular pit tunnel. Among them, the specific method of taking out the rock mass is to insert a wedge into the sawing slit according to the mechanical properties of the rock itself, which is easy to break, and then hammer the wedge, so that the rock mass can be cut along the deepest part of the saw by the shearing force. Brittle fracture, the rock block after brittle fracture is relatively large, and can be dragged by the hoist to the transportation equipment and transported out of the tunnel. The extracted rock mass can be used for secondary use in stone processing, paving or building construction industries, thereby comprehensively reducing the construction cost of pit tunnels.

Example 2

This embodiment is basically the same as Embodiment 1, the main difference is that: the drive motor 3 is connected to the transmission shaft through the gear transmission gearbox 15 , that is, the drive motor 3 drives the transmission shaft to rotate through the gear transmission transmission gearbox 15 .

Example 3

An integrated pit tunnel boring machine, including a frame 1 and a drilling and sawing mechanism, the drilling and sawing mechanism includes an arm 2, a transmission shaft, a drive motor 3, a telescopic seat 4, a drill barrel 5, and a cutting wheel 6 , main motor 7, saw rope and a plurality of guide wheels 8, the drive motor 3, main motor 7, telescopic seat 4 and a plurality of guide wheels 8 are all fixed on the frame 1, and the arm bar 2 is fixed on the telescopic seat 4, the transmission shaft is sleeved in the arm 2, and the driving motor 3 is connected with the transmission shaft in the arm 2 through a belt 14; when drilling, the drill tube 5 is fixed on the end of the transmission shaft, and the driving motor 3 Drive the drill cylinder 5 to work through the transmission shaft; when sawing, the cutting wheel 6 is movably arranged at the end of the arm bar 2, and the main motor 7 drives the cutting wheel 6 to work through the saw rope and a plurality of guide wheels 8, and forms a wire saw cycle.

In this embodiment, the number of the drilling and sawing mechanisms is multiple sets, and the arms 2 in the multiple sets of drilling and sawing mechanisms are respectively distributed in a rectangular shape and in an arc shape, that is, the arms 2 in the multiple sets of drilling and sawing mechanisms are The arms 2 are distributed in a rectangle and an arc respectively in the same orthographic projection plane; wherein, the arms 2 distributed in an arc are located above the arms 2 distributed in a rectangle, and the arms 2 distributed in an arc are located above the arms 2 distributed in a rectangle. The distributed arm rods 2 form an arched structure in the same orthographic projection plane, and this arrangement is especially suitable for excavation of rectangular pit tunnels. In combination with this application, it is preferable that the number of drilling and sawing mechanisms with arms 2 arranged in a rectangular shape is six sets, and that the six sets of drilling and sawing mechanisms are arranged symmetrically on both sides of the frame 1; it is preferable that the arms 2 are distributed in an arc The number of drilling and sawing mechanisms is three sets. Further, when the roadheader is sawing, the number of cutting wheels 6 connected to the arms 2 distributed in a rectangle is one, and the number of cutting wheels 6 connected to the arms 2 distributed in an arc is three. One, and the main motor 7 drives the cutting wheel 6 in multiple sets of drilling and sawing mechanisms to rotate simultaneously through the saw rope and a plurality of guide wheels 8, so that the pit tunnel can be excavated into an arched structure at one time.

Further, the three cutting wheels 6 on the arm 2 include an intermediate cutting wheel 6 whose axis coincides with the axis of the arm 2 and two inclined cutting wheels whose axis lines are perpendicular to the axis of the arm 2 respectively. Wheel 6, two inclined side cutting wheels 6 are symmetrically arranged on both sides of the middle cutting wheel 6, so that the vault of the pit tunnel can be formed quickly.

In this embodiment, the arm 2 is also provided with an anti-bending seat 11 and an anti-bending wheel 12 .

This embodiment is mainly used for excavation of arched tunnels. Its implementation principle is as follows: the drill tube 5 is installed on nine transmission shafts, the control frame 1 is moved to the position to be excavated, and the nine transmission shafts are adjusted to Appropriate drilling position, then through the drive motor 3 to control the drill tubes 5 on the nine transmission shafts to drill holes simultaneously, after the drilling is completed, control the drill tubes 5 to withdraw from the drilling, disassemble the drill tubes 5, and then each of the rectangularly distributed Anti-bending wheels 12 and a cutting wheel 6 are installed on the arm bar 2, anti-bending wheels 12 and three cutting wheels 6 are installed on each arm bar 2 distributed in an arc, and then the main sheave on the main motor 7, A plurality of guide wheels 8 and a plurality of cutting wheels 6 are put on the saw rope at the same time, and then the main motor 7 is started to drive the cutting wheels 6 to cut the rock mass. When cutting to a certain depth, the cutting is stopped, the frame 1 is withdrawn, and the rock mass is taken out. Then disassemble cutting wheel 6 and install drill barrel 5, repeat above-mentioned operation and can dig into pit tunnel again, until the completion of arched pit tunnel.

Example 4

This embodiment is basically the same as Embodiment 3, the main difference is that: the drive motor 3 is connected to the transmission shaft through the gear transmission gearbox 15 , that is, the drive motor 3 drives the transmission shaft to rotate through the gear transmission transmission case 15 .

Example 5

An integrated pit tunnel boring machine, comprising a frame 1, a traveling mechanism of the frame 1 and a drilling and sawing mechanism, the traveling mechanism of the frame 1 includes a traveling wheel 10, a track 23, a slow traveling system and a fast traveling system, The quantity of described traveling wheel 10 is a plurality of, and a plurality of traveling wheels 10 are arranged on both sides of frame 1 bottom, and frame 1 walks on track 23 by traveling wheel 10, and described track 23 is provided with chain groove, and described The slow walking system includes a secondary speed reducer 19 and the sprocket wheel connected with the secondary speed reducer 19, and the slow walking system controls the slow walking of the frame 1 through the sprocket wheel and the chain groove; the fast walking system includes two sets of One-stage reducer 22, two sets of one-stage reducer 22 are respectively connected to the traveling wheels 10 on both sides of the lower part of the frame 1 through gears, and the fast walking system controls the fast walking of the frame 1 through two sets of one-stage reducer 22 and the traveling wheels 10 The drilling and sawing mechanism includes arm bar 2, transmission shaft, drive motor 3, telescoping seat 4, drill barrel 5, cutting wheel 6, main motor 7, saw rope and a plurality of guide wheels 8, and the drive motor 3 , the main motor 7, the telescopic seat 4 and a plurality of guide wheels 8 are all fixed on the frame 1, the arm 2 is fixed on the telescopic seat 4, the transmission shaft is sleeved in the arm 2, and the drive motor 3 is connected with the drive shaft in the arm bar 2 through the belt 14; when drilling, the drill tube 5 is fixed on the end of the drive shaft, and the drive motor 3 drives the drill tube 5 to work through the drive shaft; At the end of the arm bar 2, the main motor 7 drives the cutting wheel 6 to work through the saw rope and a plurality of guide wheels 8.

In this embodiment, the slow walking system is mainly composed of a walking motor 18, a secondary reducer 19, a chain plate, a sprocket, a clutch, a shaft, a bearing, a mounting seat, etc., and the motor is connected to the reducer to control the entire roadheader Walking slowly along the chain groove on the track 23, the clutch is used to control the disconnection and connection of the sprocket and the output end of the secondary reducer 19; the specific specifications are configured according to the construction environment (including the slope of the pre-construction pit tunnel, rock hardness, etc.). The fast walking system is mainly composed of two traveling motors 20, three traveling motors 21, two sets of primary reducers 22, gears, clutches, bearings, bearing blocks and the like. The second traveling motor 20 and the third traveling motor 21 are connected with the speed reducer to control the complete machine to walk quickly along the traveling track 23, and the clutch is connected with the traveling wheel 10 of the roadheader for controlling the disconnection and connection of the fast traveling system of the whole roadheader.

In the present invention, the frame 1 is provided with a water supply assembly, which provides water for the drill tube 5 and the cutting wheel 6 in the drilling and sawing mechanism.

In the present invention, the frame 1 is also provided with a control cabinet 17, which is used to control the corresponding electronic devices involved in the present invention, such as hydraulic motors, water supply assemblies, clutches, and motors on the frame 1.

In addition, a large number of experiments have proved that the construction of the present invention also has the following advantages:

1. The wall of the pit tunnel after construction is flat and beautiful. During the construction process, the surrounding rock will not be disturbed, and artificial rock loosening circles will not be formed. During the use of the pit tunnel, there will generally be no phenomenon of falling blocks, pieces, etc., and the later maintenance costs extremely low.

2. No explosives are used in the construction process, which saves the high cost of purchasing and keeping explosives.

3. When crossing strata with complex geological conditions, large water inflow and large gas volume, the wire saw tunnel boring machine can be used for remote control construction to ensure the safety of employees to the greatest extent.

4. The tunnel, pit roof, pit wall, and pit bottom constructed by the sawing method have extremely high flatness. According to the design size, the tunnel position, slope, width, height, etc. can be accurately positioned. There is a drainage on the left and right sides of the tunnel The ditch and the main tunnel are formed at one time, and there is no need to increase the construction of the drainage ditch.

5. The flat wall of the pit can ensure the accurate collection of pit groove samples, and minimize the impact of sampling errors on the final reserve calculation.

6. During the excavation process, there is basically no waste residue, no damage to the environment, no environmental restoration costs, and a reduction in land acquisition fees.

7. When the wire-saw tunnel boring machine is constructing the tunnel, the stones taken out are relatively large, and can be used as building stones after simple processing.

8. Using the wire-saw tunnel boring machine to construct the tunnel, the direct construction cost is slightly lower than the drilling and blasting method. If the benefits of stone recycling are integrated and the cost of the retaining wall project is considered, the overall cost is far lower than the drilling and blasting method. construction.

9. The wire-saw tunnel boring machine is small in size, easy to transport, and low in power. The generator in general engineering can meet the needs of equipment operation. The machine has a high degree of automation and is easy to operate. It only needs 2 to 3 workers to work together in one shift. Under normal circumstances, there is no need to consider the internal structure of the rock, and it can be directly cut blindly.

10. It is used for underground stone mining, and its comprehensive mining cost is better than that of open-pit mining, and its comprehensive advantages are obvious.

Claims (10)

1. An integrated pit tunnel boring machine, characterized in that it includes a frame (1) and a drilling and sawing mechanism, and the drilling and sawing mechanism includes an arm rod (2), a transmission shaft, and a drive motor (3) , telescopic seat (4), drill barrel (5), cutting wheel (6), main motor (7), saw wire and multiple guide wheels (8), the drive motor (3), main motor (7), The telescopic seat (4) and multiple guide wheels (8) are fixed on the frame (1), the arm (2) is fixed on the telescopic seat (4), and the transmission shaft is sleeved on the arm (2) ), the drive motor (3) is connected to the drive shaft in the arm (2); When drilling, the drill barrel (5) is fixed at the end of the drive shaft, and the drive motor (3) drives the drill barrel (5) to work through the drive shaft; When sawing, the cutting wheel (6) is movably arranged at the end of the arm bar (2), and the main motor (7) drives the cutting wheel (6) to work through the saw rope and a plurality of guide wheels (8). 2. The integrated pit tunnel boring machine according to claim 1, characterized in that: there are multiple sets of drilling and sawing mechanisms, and the arms (2) in multiple sets of drilling and sawing mechanisms are distributed in a rectangular shape , and when sawing, the main motor (7) simultaneously drives the cutting wheels (6) in multiple sets of drilling and sawing mechanisms to rotate through the saw rope and a plurality of guide wheels (8). 3. The integrated pit tunnel boring machine according to claim 1, characterized in that: there are multiple sets of drilling and sawing mechanisms, and the arms (2) in multiple sets of drilling and sawing mechanisms are respectively rectangular Distributed and distributed in an arc, and the arm (2) distributed in an arc is located above the arm (2) distributed in a rectangle; wherein, when sawing, the cutting connected to the arm (2) distributed in a rectangle The number of wheels (6) is one, the number of cutting wheels (6) connected to the arm bar (2) distributed in an arc is three, and the main motor (7) is driven by the saw wire and a plurality of guide wheels. (8) Simultaneously drive the cutting wheels (6) in multiple sets of drilling and sawing mechanisms to rotate. 4. The integrated pit tunnel boring machine according to claim 3, characterized in that: the three cutting wheels (6) on the arm (2) include axis lines that are in line with the axis lines of the arm (2). The coincident middle cutting wheel (6) and the two inclined cutting wheels (6) whose axes are perpendicular to the axis of the arm (2) respectively, and the two inclined side cutting wheels (6) are arranged symmetrically on the middle cutting wheel ( 6) Both sides. 5. The integrated pit tunnel boring machine according to any one of claims 1-3, characterized in that: the arm (2) is fixedly provided with a connecting seat (9) and an anti-bending seat (11), The cutting wheel (6) is connected to the arm (2) through the connecting seat (9), and the cutting wheel (6) is located between the connecting seat (9) and the anti-bending seat (11), and the anti-bending seat ( 11) Anti-bending wheels (12) are arranged on the upper activity. 6. The integrated pit tunnel boring machine according to claim 1, characterized in that: a reinforcing steel plate (13) is fixedly arranged on the arm (2). 7. The integrated pit tunnel boring machine according to any one of claims 1, 2, 3 or 6, characterized in that: the boring machine also includes a frame (1) traveling mechanism, and the frame (1) ) The traveling mechanism includes a traveling wheel (10), a track (23), a slow traveling system and a fast traveling system, the number of the traveling wheels (10) is multiple, and the multiple traveling wheels (10) are arranged on the frame (1 ) on both sides of the lower part, the track (23) is provided with a chain groove, the slow walking system includes a secondary reducer (19) and a sprocket connected to the secondary reducer (19), the slow walking The system controls the slow running of the frame (1) through sprockets and chain grooves; the fast running system includes two sets of primary reducers (22), and the two sets of primary reducers (22) are respectively connected to the frame (1) by gears. ) are connected to the running wheels (10) on both sides of the lower part, and the fast walking system controls the fast walking of the frame (1) through two sets of primary reducers (22) and the running wheels (10). 8. The integrated pit tunnel boring machine according to claim 1, characterized in that: the drive motor (3) is connected to the transmission shaft through a belt (14) or a gear transmission gearbox (15). 9. The integrated pit tunnel boring machine according to claim 1, characterized in that: the frame (1) is also provided with an adjustment rod (16) for controlling the expansion and contraction of the telescopic seat (4), and the adjustment rod (16) Connect with the adjustment motor or hydraulic motor. 10. The integrated pit tunnel boring machine according to claim 1, characterized in that: a control cabinet (17) is also arranged on the frame (1).