CN216110738U - Connecting channel tunneling equipment - Google Patents

Abstract

The utility model discloses a junctional passage tunneling device which comprises a tunneling device body, a tunneling cutter and a cutting cutter, wherein the cutting cutter is arranged on the tunneling device body; the rotation driving device is connected with the cutting tool so as to drive the cutting tool to rotate around the axis of the tunneling equipment body; and the sliding driving device is connected with the cutting tool so as to drive the cutting tool to move along the axial direction of the tunneling equipment body. By applying the device, the segments at the initial end can be directly crushed and broken by the tunneling cutter without manually and auxiliarily removing the crushed segments; cutting the reinforced concrete segment at the receiving end by a cutting tool so as to solve the problem that the segment of the main tunnel at the receiving end is in reverse arc contact with a cutter head and is difficult to rapidly break the segment; the sliding driving device drives the cutting tool to axially move relative to the tunneling equipment body, and meanwhile, the rotating driving device drives the cutting tool to rotate around the axis of the tunneling equipment body so as to cut the duct piece.

Description

Connecting channel tunneling equipment

Technical Field

The utility model relates to the technical field of tunnel construction, in particular to a connecting channel tunneling device.

Background

The communication channel is usually arranged between the two-line tunnels and is connected with the two main tunnels so as to meet multiple requirements of later service, risk avoidance, rescue and the like. The construction method adopted by the traditional connection channel construction mainly comprises freezing method construction and grouting reinforcement method construction, the methods need to reinforce and stop the stratum and then adopt a manual excavation mode, and the defects of complex settlement control, low construction efficiency, high cost, long construction period, low safety of constructors and the like exist.

Therefore, the prior art has the connection channel shield/pipe-jacking construction method. And (4) propelling the shield tunneling machine/pipe jacking machine in the construction process, assembling the precast concrete segments and finally forming the contact channel structure. The existing connecting channel shield/pipe-jacking construction equipment cannot directly break reinforced concrete pipe pieces, and the full-rotation equipment needs manual assistance to remove broken pipe pieces at the starting end, so that the efficiency is low and the personnel safety cannot be guaranteed to the maximum extent; and the adoption of the arc-shaped cutter head leads to that the main tunnel segment is in reverse arc contact with the cutter head when the receiving end is used, so that the segment is difficult to break quickly.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model aims to provide a connecting channel tunneling device to solve the problems that the existing connecting channel construction equipment cannot directly break reinforced concrete segments, the segment breaking efficiency is low, and the like.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a linkage passageway tunnelling is equipped, includes that the tunnelling is equipped the body and can rotate to be located tunnelling cutter on the tunnelling equipment body still includes:

the front end of the cutting tool is provided with a cutter body and can cut the duct piece, and the cutting tool is arranged on the tunneling equipment body;

the rotary driving device is arranged on the tunneling equipment body and is connected with the cutting tool so as to drive the cutting tool to rotate around the axis of the tunneling equipment body;

the slippage driving device is arranged on the tunneling equipment body and connected with the cutting tool so as to drive the cutting tool to move along the axial direction of the tunneling equipment body.

Preferably, the axis of rotation of the ripping tool coincides with the axis of the ripping equipment body; the output end of the rotary driving device axially protrudes out of the end wall of the tunneling equipment body, and the tunneling cutter is connected with the tunneling equipment body through the output end of the rotary driving device so as to rotate under the driving of the rotary driving device.

Preferably, the tunneling cutter is provided with a locking assembly for connecting the cutting cutter, and the rotation driving device can drive the cutting cutter to rotate through the locking assembly when the cutting cutter is locked.

Preferably, the locking assembly comprises:

the fixed end of the locking power piece is fixedly connected with the tunneling cutter, the movable end of the locking power piece is connected with a locking piece, and the locking power piece drives the locking piece to move towards or away from the cutting cutter;

and the cutting tool is provided with a locking position which can be matched with the locking piece when the cutting tool moves for a preset distance along the axial direction.

Preferably, the method further comprises the following steps:

the auxiliary cutter is arranged at the end part of the tunneling cutter close to the cutting cutter;

an auxiliary cutter power drive device for driving the auxiliary cutter to extend/retract relative to the end wall of the tunneling cutter; when the auxiliary cutter extends out, the distance between the auxiliary cutter and the axial line of the tunneling equipment body is larger than or equal to the radius of the tunneling equipment body, so that the tunneling cutter is assisted to tunnel.

Preferably, a soil bin for storing soil is formed between the tunneling cutter and the tunneling equipment body; the locking assembly is arranged on a cutter head of the tunneling cutter along the axial direction of the tunneling equipment body and is fixed, and the cutter head is provided with a radial through hole or a radial groove which is used for enabling the locking assembly to extend out along the axial direction which is perpendicular to the tunneling equipment body; the cutter head is an arc-shaped cutter head with an arc-shaped front section.

Preferably, the auxiliary cutter power driving device is the locking assembly, and a mounting groove for accommodating the auxiliary cutter to enable the auxiliary cutter to pass through the radial through hole is formed in the side wall of the locking assembly facing the tunneling direction;

and an auxiliary extending device which is connected with the auxiliary cutter and drives the auxiliary cutter to protrude out of the mounting groove for auxiliary tunneling is arranged in the mounting groove.

Preferably, the tunneling equipment body comprises a tunneling barrel body and a shield body partition plate arranged at the end wall of the tunneling barrel body along the radial direction of the tunneling equipment body;

the cutting tool is sleeved in the tunneling cylinder body through a rotary bearing so as to rotate relative to the tunneling cylinder body under the drive of the rotation driving device;

one end of the sliding driving device is fixedly connected with the shield body partition plate, and the other end of the sliding driving device is connected with the cutting tool through the rotary bearing.

Preferably, the excavating equipment body further comprises:

a duct piece connecting cylinder arranged opposite to the end wall of the tail part of the tunneling cylinder and used for connecting a connecting channel duct piece;

and a plurality of deviation rectifying oil cylinders for connecting the duct piece connecting cylinder and the tunneling cylinder are arranged between the duct piece connecting cylinder and the tunneling cylinder, and all the deviation rectifying oil cylinders are uniformly arranged along the circumferential direction of the tunneling equipment body.

Preferably, the method further comprises the following steps:

the spiral conveyor is arranged in a cavity formed by the tunneling cylinder and used for collecting and conveying soil mass crushed by the tunneling cutter, and the head end of the spiral conveyor protrudes out of the shield body partition plate;

the gate and the slag discharging assembly are connected with the spiral conveyor and are used for conveying the crushed soil body to the outside of the communication channel;

a drive assembly coupled to the screw conveyor to provide power.

The utility model provides a connecting channel tunneling device, which comprises a tunneling device body and a tunneling cutter rotatably arranged on the tunneling device body, and further comprises: the front end of the cutting tool is provided with a cutter body and can cut the duct piece, and the cutting tool is arranged on the tunneling equipment body; the rotation driving device is connected with the cutting tool so as to drive the cutting tool to rotate around the axis of the tunneling equipment body; and the sliding driving device is connected with the cutting tool so as to drive the cutting tool to move along the axial direction of the tunneling equipment body.

Compared with the prior art, the connection channel tunneling equipment provided by the utility model has the following technical effects:

firstly, cutting a reinforced concrete segment by a cutting tool, tunneling the soil body by a tunneling tool to respectively cut the segment and tunnel the soil body, and directly crushing and removing the segment at the initiating end by the tunneling tool at the initiating end without manually removing the crushed segment; the reinforced concrete segment is cut at the receiving end through a cutting tool, and the segment at the receiving end does not need to be specially made, so that the problem that the segment of the main tunnel at the receiving end is in reverse arc contact with a cutter head and is difficult to rapidly break the segment is solved; the sliding driving device drives the cutting tool to axially move relative to the tunneling equipment body, and meanwhile, the rotating driving device drives the cutting tool to rotate around the axis of the tunneling equipment body so as to cut the duct piece; and synchronously deslagging while tunneling, and forming the tunnel at one time.

And secondly, the cutting tool and the tunneling tool are fixed by the locking assembly, and power is transmitted to the cutting tool through the tunneling tool and the locking assembly under the driving of the rotation driving device, so that the tunneling tool and the cutting tool realize rotary motion through the same driving device, the structure of the device is simplified, the torque and thrust requirements are reduced, and the installed power 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 connecting channel tunneling device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a communication channel excavating equipment at an originating end section according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a cross section of a connection channel tunneling device at a receiving end according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a layout structure of a main tunnel at an originating end of a communication channel tunneling device according to an embodiment of the present invention;

fig. 5 is a schematic tunneling diagram of the communication channel tunneling equipment provided by the embodiment of the utility model.

The drawings are numbered as follows:

the device comprises a cutter head 1, cutter head spokes 2, a rotary cylinder 3, a sliding driving device 4, a rotary bearing 5, a soil bin 6, a rotary driving device 7, a locking assembly 8, a screw conveyor 9, a deviation rectifying oil cylinder 10, a gate 11, a slag discharging assembly 12, a driving assembly 13, an initiating end counter-force supporting system 14, a propelling system 15, an initiating end trolley 16, an initiating sealing assembly 17, a connecting channel 18, a main tunnel segment 19, a receiving cylinder 20, a receiving sealing assembly 21, a receiving end trolley 22, a receiving end counter-force supporting system 23, an electrical system 24, a hydraulic system 25, a control system 26, connecting channel tunneling equipment 27, a grouting friction reducing system 28, a segment 29, a segment hoisting system 30, a bearing panel 31, a supporting frame 32 and a supporting oil cylinder 33;

locking power piece 801, locking piece 802 and locking hole 803;

a sealing brush 171, an origin canister 172;

cylinder bracket 151, thrust cylinder 152, top iron 153.

Detailed Description

The embodiment of the utility model discloses a connecting channel tunneling device, which aims to solve the problems that the existing connecting channel construction equipment cannot directly break reinforced concrete segments, the segment breaking efficiency is low and the like.

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 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 to 5, fig. 1 is a schematic structural diagram of a connecting tunnel boring device according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a communication channel excavating equipment at an originating end section according to an embodiment of the present invention; fig. 3 is a schematic structural diagram of a cross section of a connection channel tunneling device at a receiving end according to an embodiment of the present invention; fig. 4 is a schematic diagram of a layout structure of a primary tunnel at an originating end of a contact channel according to an embodiment of the present invention; fig. 5 is a schematic tunneling diagram of the communication channel tunneling equipment provided by the embodiment of the utility model.

In a specific embodiment, the present invention provides a communication passage excavating equipment 27 comprising an excavating equipment body and an excavating cutter rotatably provided on the excavating equipment body. The excavating tool is generally arranged at the front end of the excavating equipment body along the excavating direction so as to be capable of fully contacting with soil to crush the soil, and meanwhile, the rotation axis of the excavating tool is collinear with the axis of the excavating equipment body so as to be convenient for installation and positioning; preferably, the tunneling cutter is provided with an arc-shaped cutter head 1 to increase the contact area with the soil body, the circle center of the arc-shaped cutter head 1 faces the soil body or one side of the tunneling equipment body, and the arc-shaped cutter head 1 can be arranged as required.

Specifically, the device further comprises a cutting tool, a rotation driving device 7 and a sliding driving device 4. The front end of the cutting tool is provided with a tool body and can cut the duct piece, the cutting tool is arranged on the tunneling equipment body, preferably, the distance between the cutting tool and the axis of the tunneling equipment body is larger than or equal to the maximum radius of the tunneling equipment body, so that after the cutting tool cuts the duct piece, the tunneling tool and the tunneling equipment body can pass through the cutting seam, the situation that the cutting tool is too small in cut and the tunneling tool is interfered, the tunneling tool is damaged, and the receiving end receiving equipment can receive the tunneling equipment conveniently.

Wherein, the rotation driving device 7 is connected with the cutting tool to drive the cutting tool to rotate around the axis of the tunneling equipment body; the rotation driving device 7 is preferably a combination structure of an electric motor and a coupling, including but not limited to a combination of an electric motor and a coupling, and may also be a driving device such as a motor. The cutting tool is driven by the rotation driving device 7 to realize full-rotation motion to cut the duct piece; the sliding driving device 4 is preferably one of an air cylinder or a hydraulic cylinder, and can also be a gear, a chain and other mechanisms, as long as the same technical effect can be achieved, the sliding driving device 4 is connected with the cutting tool to drive the cutting tool to move along the axial direction of the tunneling equipment body, so that the cutting tool can move relative to the tunneling equipment body, the cutting tool can perform cutting operation after moving a preset distance along the axial direction, and meanwhile, the cutting tool retracts to accommodate after cutting segments, so that the interference to the tunneling movement of the tunneling tool is prevented; in another embodiment, the sliding driving device 4 drives the cutting tool to move along the axial direction of the tunneling equipment body, so that the cutting operation of the cutting tool is realized in the moving process, segments or reinforced concrete with a certain axial length can be cut, the tunneling equipment body does not need to move along the axial direction in the moving process, the tunneling tool performs tunneling operation after the cutting tool is operated, so that the reinforced concrete body can be effectively excavated, the combined operation is realized, the tunneling efficiency is improved, and the torque and the thrust requirement of the whole machine are reduced.

Compared with the prior art, the communication channel tunneling equipment 27 provided by the utility model has the following technical effects:

the reinforced concrete segment is cut by the cutting tool, the soil body is tunneled by the tunneling tool so as to respectively cut the segment and tunnel the soil body, the segment at the initiating end can be directly crushed and broken by the tunneling tool at the initiating end, and the crushed segment does not need to be removed by manual assistance; cutting the reinforced concrete segment at the receiving end by a cutting tool so as to solve the problem that the segment 19 of the main tunnel of the receiving end is in reverse arc contact with the cutter head 1 and is difficult to rapidly break the segment; the sliding driving device 4 drives the cutting tool to move axially relative to the tunneling equipment body, and meanwhile, the rotating driving device 7 drives the cutting tool to rotate around the axis of the tunneling equipment body so as to cut the duct piece.

In order to simplify the structure of the device and reduce the thrust requirement of the tunneling equipment, the rotation axis of the tunneling cutter is superposed with the axis of the tunneling equipment body; the rotary driving device 7 simultaneously provides power for the cutting tool and the tunneling tool, so that the whole equipment is simplified, and meanwhile, the power requirement of the reaction force supporting system 14 at the initiating end is reduced when the tunneling equipment tunnels forwards; meanwhile, the output end of the rotary driving device 7 protrudes out of the end wall of the tunneling equipment body along the axial direction, and the tunneling cutter is connected with the tunneling equipment body through the output end of the rotary driving device 7, so that the tunneling equipment body is kept relatively static in the rotating process of the tunneling cutter, the tunneling cutter is driven to rotate only through the rotary driving device 7 to realize tunneling, and the required torque power is reduced.

In one embodiment, in order to optimize the device structure and realize the power output of the rotary driving device 7 to the cutting tool and the tunneling tool, the tunneling tool is provided with a locking assembly 8 for connecting the tunneling tool and the cutting tool, the rotary driving device 7 can drive the cutting tool to rotate through the locking assembly 8 when the locking is carried out, and the rotary driving device 7 can independently drive the tunneling tool to rotate when the locking is released so as to further reduce the torque power required by tunneling. The locking assembly 8 may be provided as a key structure, with the specific structure of the locking assembly 8 being provided as desired. In this embodiment, the tunneling cutter is provided with a through hole or a relief groove arranged along the axial direction, which is described by taking the through hole as an example, when the cutting cutter moves along the axial direction, the cutting cutter penetrates through the through hole, so that the hole and the shaft are matched and locked, the tunneling cutter is driven by the rotation driving device 7 to drive the cutting cutter to rotate through the hole and the shaft, at this time, one end of the cutting cutter is preferably sleeved on the tunneling equipment body, and a plurality of cutter bodies are uniformly arranged at the other end of the cutting cutter along the circumferential direction, which is only a preferred embodiment.

In another embodiment, the cutting tool is a rotary cylinder 3, which is sleeved on the tunneling equipment body and sleeved outside the tunneling tool, that is, the cutting tool moves forward along the tunneling direction through the end wall of the tunneling tool under the driving of the sliding driving device 4, and the front end of the rotary cylinder 3 is provided with a cutter body, preferably, the distance between the circumferential side wall of the cutter body and the axis of the tunneling equipment body is greater than or equal to the distance between the tunneling equipment body and the axis of the tunneling equipment body, so that the tunneling equipment body can pass through the cutting seam of the cutting tool, and when the tunneling equipment moves to the receiving end, the cutting tool can be better matched with the receiving equipment of the receiving end to improve the sealing performance of the receiving end, and prevent water and sand gushing. Preferably, the diameter of the cutting slot of the cutting tool is larger than the maximum diameter of the tunneling equipment body, so that the outer wall of the tunneling equipment body is prevented from rubbing or even being stuck with the inner wall of the communication channel when the tunneling equipment works in the tunneling direction, the obstruction is caused to the tunneling operation of the tunneling equipment body, and the starting end counter force support system 14 is prevented from being easily damaged due to the increase of the propelling pressure.

Based on the above embodiment, the distance between the circumferential side wall of the tunneling cutter and the axis of the tunneling equipment body is smaller than the distance between the circumferential side wall of the cutting cutter and the axis of the tunneling equipment body, and then the locking component 8 may be a key or a fixture block provided at the end wall of the tunneling cutter, and a locking groove is provided on the cutting cutter, so as to lock the cutting cutter and the tunneling cutter, and to realize power transmission under the driving of the rotation driving device 7. The locking assemblies 8 are arranged in groups and are uniformly arranged on the tunneling cutter along the circumferential direction; the locking assembly 8 comprises a locking power piece and a locking piece, the fixed end of the locking power piece is fixedly connected with the tunneling cutter, the movable end of the locking power piece is connected with the locking piece, the locking power piece drives the locking piece to move towards the direction close to or far away from the cutting cutter so as to realize the matching of the locking piece and a locking hole, locking/unlocking is carried out, and the moving direction of the locking power piece is preferably the radial movement along the tunneling equipment body. The locking power part is preferably one of an air cylinder or a hydraulic cylinder, can also be a structure such as a gear, a chain and the like, and can be arranged as required; the cutting tool is provided with a locking position which can be matched with the locking piece when the cutting tool moves for a preset distance along the axial direction, the locking position can be formed by a locking hole or a locking groove, the locking hole is taken as an example for explanation, when the cutting tool moves forward for the preset distance along the tunneling direction under the driving of the sliding driving device 4, the locking hole is opposite to the locking piece, the locking power piece drives the locking piece to move towards the direction close to the locking hole at the moment, and the locking piece extends into the locking hole to realize locking, so that the cutting tool and the tunneling tool are fixed and can rotate under the action of the rotating driving device 7 to realize cutting operation; after the cutting tool is operated, the locking power piece drives the locking piece to move towards the direction far away from the locking hole, the locking piece is unlocked from the locking hole, the cutting tool can move backwards along the tunneling direction under the driving of the sliding driving device 4, and the rotation driving device 7 only drives the tunneling tool to rotate when rotating, so that the split operation of tunneling and cutting is realized, and the torque power required by the tunneling operation is reduced.

It can be understood that the preset distance is equal to the extension length of the sliding driving device 4, the extension length of the sliding driving device 4 can be set according to the curvature radius of the duct piece to be cut, the axial size of the tunneling cutter and other factors, for example, when the tunneling cutter is the arc-shaped cutter head 1, the extension length of the sliding driving device 4 is such that the radial end face of the cutting cutter is positioned in front of the radial end face of the tunneling cutter along the tunneling direction, so that when the cutting cutter cuts the duct piece/reinforced concrete body, the tunneling cutter cannot interfere with the cutting of the duct piece/reinforced concrete body, and meanwhile, the tunneling cutter is prevented from contacting the uncut duct piece/reinforced concrete body to cause cutter deformation or damage; it can be understood that the cutting tool in this application can cut reinforced concrete segment when the receiving end segment is the reinforced concrete segment, also can be when the contact channel when the reinforced concrete body appears in the tunnelling in-process, preferentially cut the reinforced concrete body through the cutting tool, and the rethread tunnelling cutter carries out broken tunnelling to the soil body to realize the tunnelling operation with the supplementary cooperation of tunnelling cutter, improve tunnelling efficiency.

It can be understood that when the distance between the circumferential side wall of the tunneling cutter and the axis of the tunneling equipment body is smaller than the distance between the circumferential side wall of the cutting cutter and the axis of the tunneling equipment body, the diameter of a hole formed by tunneling by the tunneling cutter is smaller than the outer diameter of the tunneling equipment body, the tunneling equipment body is easy to block or block when passing through a tunneling hole, and the initial end reaction force supporting system 14 is damaged; based on the device, the device also comprises an auxiliary cutter and an auxiliary cutter power driving device, wherein the auxiliary cutter is arranged at the end part of the tunneling cutter close to the cutting cutter; the auxiliary cutter power driving device is used for driving the auxiliary cutter to extend/retract relative to the end wall of the tunneling cutter; when the cutting tool needs to perform cutting operation and is fixed with the tunneling tool through the locking assembly 8, the auxiliary tool power driving device drives the auxiliary tool to retract, and the auxiliary tool does not exceed the end wall of the tunneling tool at the moment so as to give way for the movement of the cutting tool; when the tunneling cutter needs tunneling operation, the auxiliary cutter power driving device drives the auxiliary cutter to extend out; preferably, when the auxiliary cutter is extended, the distance between the auxiliary cutter and the axis of the tunneling equipment body is greater than or equal to the radius of the tunneling equipment body, and the outer diameter is the maximum radius so as to assist the tunneling cutter in tunneling. Therefore, the diameter of the tunneling hole formed by the auxiliary cutter and the tunneling cutter is larger than the outer diameter of the tunneling equipment body, and the initial end reaction force supporting system 14 is prevented from being damaged when the tunneling hole is too small and the tunneling equipment body is difficult to damage. In one embodiment, the tunneling cutter is an arc-shaped cutter head 1, and the plane of the auxiliary cutter is located on the circumferential extension surface of the arc-shaped cutter head 1, so that the matching degree of the cutter and the tunneling cutter is further improved, and the tunneling effect is optimized.

In the specific embodiment, a soil bin for storing soil is formed between the tunneling cutter and the tunneling equipment body; the tunneling cutter comprises a cutter head 1 sleeved with the rotary driving device; the cutter head 1 is an arc-shaped cutter head with an arc-shaped front section;

the locking assembly 8 is arranged on the cutter head 1 along the axial direction of the tunneling equipment body and is fixed, and the cutter head 1 is provided with a radial through hole or a radial groove which is used for enabling the locking assembly 8 to extend out along the axial direction which is perpendicular to the tunneling equipment body. The locking assembly 8 is arranged on the cutter head 1 along the axial direction of the tunneling equipment body and is fixed, a radial through hole or a radial groove which enables the locking assembly to extend out along the axial direction perpendicular to the tunneling equipment body is formed in the cutter head 1, and the locking assembly 8 is guided to move through the radial through hole or the radial groove.

Specifically, the auxiliary cutter power driving device is a locking assembly 8, and a mounting groove for accommodating the auxiliary cutter so that the auxiliary cutter can penetrate through the radial through hole is formed in the side wall, facing the tunneling direction, of the locking assembly 8; and an auxiliary extending device which is connected with the auxiliary cutter and drives the auxiliary cutter to protrude out of the mounting groove for auxiliary tunneling is arranged in the mounting groove. The one end of locking power spare is fixed with shield body baffle 2, sets up the mounting groove on the locking piece, before locking subassembly 8 passes radial through-hole, and the setting of auxiliary tool is in the mounting groove, and the auxiliary tool is no longer than the circumference lateral wall of locking piece to locking subassembly 8 passes radial through-hole, stretches out the back along radial through-hole at the locking piece, and the supplementary device that stretches out drives auxiliary tool and stretches out, and the supplementary device that stretches out is preferred hydro-cylinder, also can be devices such as gear, chain. Pushing the auxiliary cutter to turn around a rotating shaft in the mounting groove to extend out, wherein the extended auxiliary cutter is parallel to the axial direction of the tunneling equipment body; after the tunneling operation is completed, the reverse operation is performed to effect the retraction of the auxiliary cutter. It will be appreciated that the auxiliary tool is preferably provided at an end wall of the lock member in its own axial direction so as to calculate the extension distance of the auxiliary tool power drive means on the basis of the distance of the auxiliary tool from the axis of the excavating equipment body, the distance between the end wall of the lock member and the axis of the excavating equipment body not exceeding the distance between the auxiliary tool and the axis of the excavating equipment body.

On the basis of the above embodiments, the excavating equipment body comprises an excavating cylinder body and a shield body partition plate arranged at the end wall of the excavating cylinder body along the radial direction of the excavating equipment body; the extending end of the rotary driving device 7 penetrates through the shield body partition plate to be connected with the tunneling cutter, so that when the rotary driving device 7 drives the tunneling cutter to rotate, friction with the shield body partition plate is avoided. One end of a sliding driving device 4 is fixedly connected with a shield body partition plate, the other end of the sliding driving device 4 is connected with a cutting tool through a slewing bearing 5, a hollow interlayer for mounting the cutting tool is arranged on the tunneling barrel body, the cutting tool is taken as a slewing barrel body 3 for example, the slewing barrel body 3 is sleeved in the hollow interlayer of the tunneling barrel body through the slewing bearing 5, the slewing bearing 5 is connected with the tail end of the slewing barrel body 3 and is arranged in the hollow interlayer to be in clearance fit with the tunneling barrel body, a communicating groove which is parallel to the axial direction is arranged on the inner wall corresponding to the hollow interlayer, the communicating groove penetrates through the wall thickness direction of the inner wall to realize the connection of the sliding driving device 4 and the slewing bearing 5, and the sliding driving device 4 drives the slewing bearing 5 to move along the communicating groove to realize the extension of the cutting tool; the rotary bearing 5 ensures the relative movement of the cutting tool and the sliding driving device 4 when the rotary driving device 7 drives the cutting tool to rotate.

Specifically, the cutter body of the cutting cutter is arranged on the outer side of the hollow interlayer along the axial direction of the tunneling equipment body, in one embodiment, the outer wall of the cutter body and the outer wall of the tunneling cylinder body are in the same plane, so that the axial distance between the cutter body and the tunneling equipment body is equal to the outer diameter of the tunneling cylinder body; or the outer wall of the cutter body protrudes out of the outer wall of the tunneling barrel body, so that the axial distance between the cutter body and the tunneling equipment body is larger than the outer diameter of the tunneling barrel body, and a circular seam formed by the cutting cutter is convenient for the tunneling equipment body to pass through. It is within the scope of the present invention for the slide actuator 4 to include, but not be limited to, a single or dual hydraulic ram, a motor and gear combination.

In order to control the heading direction, the heading equipment body further includes:

a duct piece connecting cylinder arranged opposite to the tail end wall of the tunneling cylinder and used for connecting the duct pieces of the communication channel;

a plurality of deviation-correcting oil cylinders 10 for connecting the duct piece connecting cylinder and the tunneling cylinder are arranged between the duct piece connecting cylinder and the tunneling cylinder, and all the deviation-correcting oil cylinders 10 are uniformly arranged along the circumferential direction of the tunneling equipment body.

It can be understood that the segment connecting cylinder body and the tunneling cylinder body are connected only through the deviation-correcting oil cylinders 10, the outer diameter of the segment connecting cylinder body is consistent with the outer diameter of the tail end wall of the tunneling equipment cylinder body, two ends of the deviation-correcting oil cylinders 10 are respectively hinged with the segment connecting cylinder body and the tunneling cylinder body, the tunneling direction is controlled by controlling the extending amount of each deviation-correcting oil cylinder 10, all the deviation-correcting oil cylinders 10 are connected with the control system 26 on the trolley in the main tunnel, and the tunneling direction is monitored in real time and the deviation-correcting oil cylinders 10 are controlled to correct.

In this specific embodiment, the method further includes:

the spiral conveyor 9 is arranged in a cavity formed by the tunneling barrel and used for collecting and conveying soil mass crushed by the tunneling cutter, and the gate 11 and the slag discharging assembly 12 are connected with the spiral conveyor 9 and used for conveying the crushed soil mass to the outside of the communication channel; a drive assembly 13 connected to the screw conveyor 9 to provide power.

Screw conveyer 9's head end protrusion sets up in shield body baffle, collect in order to the soil body in soil storehouse, screw conveyer 9's head end sets up the bottom at shield body baffle, and screw conveyer 9 is from head to tail tilt up the setting, rely on the balance of soil 6 pressure in soil storehouse and soil and water pressure and the rotation of bolt axle and blade to realize the dregs and carry, drive assembly 13 is connected on screw conveyer's shell, provide power for screw conveyer, it is connected with gate 11 to slag tap subassembly 12, be equipped with plunger pump or extrusion pump in order to directly arrange the dregs to main tunnel through slagging tap subassembly 12, realize arranging sediment fast in succession. In other embodiments, a slag car or a belt conveyor can be used for slag tapping, and the slag tapping is within the protection scope of the utility model.

In one specific embodiment, the communication tunnel boring system comprises communication tunnel boring equipment 27, a slag tapping system, a guiding deviation correcting system, a counter force supporting system arranged on the originating trolley 16 and the receiving trolley 22, a propelling device arranged on the originating trolley 16, sealing components arranged on the originating and receiving ends, and various trolleys arranged in the originating main tunnel and a rear matching system arranged thereon; the connection channel tunneling device 27 adopts a telescopic structure of the rotary cylinder 3, the arc-shaped cutter head 1 is adopted at the initial end to directly crush specially-made duct pieces and discharge the duct pieces, the arc-shaped cutter head 1 is adopted to rapidly excavate in the tunneling process, and the rotary cylinder 3 is adopted at the receiving end to carry out full-rotation cutting on reinforced concrete duct pieces.

The reaction force supporting system 14 at the initiating end and the reaction force supporting system 23 at the receiving end are respectively arranged on the primary tunnel trolley corresponding to the initiating end and the receiving end, and are tightly supported on the wall surface of the primary tunnel segment 19 through the expanding supporting frame 32, so that the pushing reaction force supporting device not only provides pushing reaction force support for equipment, but also plays a supporting role for the primary tunnel. The support frame 32 is provided with a support cylinder 33, a bearing panel 31 matched with the inner wall surface of the main tunnel segment 19, and the like. The propulsion device comprises an oil cylinder bracket, a propulsion oil cylinder and a top iron. The oil cylinder frame is arranged on the trolley corresponding to the main tunnel at the initiating end of the communication channel and is backed against the counter-force supporting system; the oil cylinder is propped against the iron jacking to push the pipe piece 29; the top iron is a high strength carbon steel product that conforms to the size of the segment 29 of the communication channel 18.

The seal assemblies are disposed on the originating and receiving end primary tunnel segments 19. The originating seal assembly 17 includes an originating cylinder fixed to a main tunnel segment 19 at the end of the communication passage 18, and a seal brush provided on the inner wall of the originating cylinder. The starting tube is arranged on the main tunnel wall at the starting side, the outer diameter of the starting tube is larger than the diameter of the communication channel 18 formed after tunneling, and the inner diameter of the starting tube is larger than the outer diameters of the shield body and the segment 29. The sealing brush avoids the phenomena of water gushing, sand gushing and the like in the tunneling process, and ensures the sealing effect of the rotary cylinder body 3 in the tunneling process. The receiving seal assembly 21 can be installed according to the heading direction of the communication channel construction equipment and various heading parameters and sizes so as to smoothly complete the receiving work.

The rear matching system comprises an electrical system 24, a hydraulic system 25, a control system 26, a grouting friction reducing system 28 and a segment lifting system 30 which are arranged on a trolley in the main tunnel at the initiating end of the communication channel; the trolley 16 at the starting end adopts a modular design, a connecting structure is arranged between the front trolley and the rear trolley, each trolley and accessory equipment can be assembled outside and are pulled to the excavation position of the communication channel 18 by the traction equipment to directly excavate, so that the assembly in a tunnel is avoided, and the excavation efficiency is improved. The duct piece 29 is in a semi-block type or a whole ring type, and the whole ring duct piece does not need to be spliced, so that the duct piece installation time is saved; the transportation of the semi-block segment is convenient, the angles of the upper and lower block segments are different, the specific angle value is determined according to the actual construction condition, the upper and lower block angles are 360 degrees, the segment 29 is provided with a sealing device, the phenomena of water leakage and sand leakage are avoided, and a connecting bolt is further arranged in the tunneling direction and the circumferential direction.

The utility model provides a method for constructing a connecting passage, which comprises the following steps:

a: driving a tunneling cutter to directly crush a primary tunnel segment at an initiating end; the arc-shaped cutter head is in arc contact with the primary tunnel segment at the initiating end, so that the primary tunnel segment can be quickly broken;

b: driving a tunneling cutter to tunnel forwards along a preset tunneling route, and forming a support in a tunnel to be excavated;

c: when the tunneling cutter reaches the receiving end segment, the cutting cutter is driven to rotate relative to the soil body and extend forwards so as to expose the cutting cutter relative to the tunneling cutter, and annular cutting is carried out on the receiving end segment. In one embodiment, the cutting tool and the tunneling tool are both fixedly arranged on the tunneling equipment, when the cutting tool extends forwards relative to the soil body, the cutting tool also extends forwards relative to the tunneling tool and the tunneling equipment, the cutting tool is preferably a cutting cylinder body, when the cutting tool is used, only the cutting tool extends, the tunneling tool and the tunneling equipment are kept relatively fixed, the arrangement is convenient, meanwhile, the integral rigidity of the tunneling equipment is kept, and the stability of the device is improved.

Compared with the prior art, the construction method of the connection channel provided by the utility model has the following technical effects:

the reinforced concrete segment is cut by the cutting tool, the soil body is tunneled by the tunneling tool so as to respectively cut the segment and tunnel the soil body, the segment at the initiating end can be directly crushed and broken by the tunneling tool at the initiating end, and the crushed segment does not need to be removed by manual assistance; the reinforced concrete segment is cut at the receiving end through the cutting tool, the segment at the receiving end does not need to be specially made, and the problem that the segment of the main tunnel at the receiving end is difficult to break quickly because the segment is in reverse arc contact with the cutter head is solved.

The specific tunneling process comprises the following steps:

step one, reinforcing the periphery of the construction position of the main tunnel. Reinforcing the main tunnel segments 19 at the originating end, the receiving end and the periphery of the communication channel 18 to meet the requirement of propulsion force transmission and prevent the damage to the main tunnel segments 19;

and step two, integrally assembling and debugging the equipment. Installing and placing an initial sealing assembly 17, a propulsion system 15, a counter-force supporting system and a host of the construction equipment of the communication channel on a corresponding trolley at the initial end face of the communication channel, and respectively installing and placing auxiliary equipment on other trolleys;

and step three, the cutter head 1 starts to break the duct piece and tunnels along a set route (according to the design direction, any angle can be formed between the cutter head and the tunnel). The segment at the starting end (specially made) is broken by the arc-shaped cutter head 1, and slag is synchronously discharged, so that the process of manually breaking the segment is avoided. The cutter head 1 and the rotary cylinder 3 share one main drive, the cutter head 1 is used for cutting soil and synchronously discharging slag during tunneling, and the slag discharge adopts a spiral and pumping mode or a belt conveyor slag discharge mode. The cut soil body falls into the soil bin 6 and is transported to the tail part by the screw conveyor 9, and the residue soil is discharged by the residue discharging assembly 12;

and step four, assembling and jacking the duct piece 29. After the propulsion of one stroke is finished, assembling a new duct piece 29 at the initial position of the communication channel through a duct piece hoisting system, pushing the new duct piece by a propulsion system 15 to continue the tunneling, and repeating the propulsion process until the new duct piece reaches the receiving end of the communication channel 18;

and step five, installing a tunnel door sealing assembly and a receiving barrel 20 at the receiving end. When the construction equipment is about to be run through, the receiving end trolley 22 is pulled to a receiving position corresponding to the communication channel 18 through the traction device, and fixing is completed; after the receiving end sealing assembly is installed and fixed and meets the receiving requirement of the construction equipment, the construction equipment and the duct piece 29 of the contact channel 18 are continuously pushed;

and step six, extending the rotary cylinder 3 to cut the receiving end pipe piece. When the position of a segment at a receiving end is reached, the telescopic oil cylinder retracts, the rotary cylinder 3 extends, the locking assembly connects the cutter head 1 and the rotary cylinder 3 into a whole, and the rotary driving device 7 drives the rotary cylinder 3 integrated with the cutter head 1 to cut the reinforced concrete segment; and after cutting, the host machine receives and transports the main tunnel according to the expected scheme.

And seventhly, tunnel forming and post-processing.

In the process of tunneling the contact channel construction equipment, the attitude of the host is measured in real time through the theodolite and the laser target and fed back to an operator, the attitude of the equipment is adjusted by controlling the deviation-correcting oil cylinder 10, and a total station prism group or other measuring technologies can be applied.

The device creatively uses a telescopic structure of the cylinder body, so as to meet the excavation switching operation of the full-rotation duct piece and the cutter head 1; the receiving end adopts a full-rotation mode to cut the pipe piece (reinforced concrete pipe piece, no special manufacture is needed), compared with the existing pipe jacking/shield tunneling machine adopting the arc-shaped cutter head 1, the main tunnel pipe piece 19 at the receiving end is in reverse arc contact with the cutter head 1, and the pipe piece at the receiving end can be quickly cut and broken by adopting the full-rotation mode (the rotary cylinder 3 extends out) when the pipe piece is difficult to be quickly broken; the segment is crushed by the arc-shaped cutter 1 at the initiating end, so that the step of manually crushing the segment in a full-rotation mode is avoided, a sealing gate 11 is not needed, and the tunneling efficiency is greatly improved; the tunneling process adopts the cutter head 1 to carry out rapid excavation, slag discharging is carried out synchronously, and the efficiency is high; the rotary driving device 7 is arranged at the head of the tunneling equipment body, and the rotary cylinder 3 and the cutter head 1 share the same set of driving; the requirements on torque and thrust are lower, the installed power is reduced, and the energy is saved and the economy is better; only the front end shell rotates, the rear pipe joint does not rotate, the power requirement is reduced, and the installed power is lower; meanwhile, a concrete segment can be used as a pipe joint support, so that the construction support cost and the equipment cost are reduced.

The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims (10)

1. The utility model provides a junctional passage tunnelling is equipped, includes that the tunnelling is equipped the body and can rotate to be located tunnelling cutter on the tunnelling equipment body, its characterized in that still includes:

the front end of the cutting tool is provided with a cutter body and can cut the duct piece, and the cutting tool is arranged on the tunneling equipment body;

the rotary driving device is arranged on the tunneling equipment body and is connected with the cutting tool so as to drive the cutting tool to rotate around the axis of the tunneling equipment body;

the slippage driving device is arranged on the tunneling equipment body and connected with the cutting tool so as to drive the cutting tool to move along the axial direction of the tunneling equipment body.

2. The communication channel excavating equipment of claim 1 wherein the axis of rotation of the excavating tool coincides with the axis of the excavating equipment body; the output end of the rotary driving device axially protrudes out of the end wall of the tunneling equipment body, and the tunneling cutter is connected with the tunneling equipment body through the output end of the rotary driving device so as to rotate under the driving of the rotary driving device.

3. The communication channel excavating equipment of claim 2 wherein the excavating cutter is provided with a locking assembly for connecting the cutting cutter, and when locked, the rotary driving device can drive the cutting cutter to rotate through the locking assembly.

4. The communication channel tunnelling apparatus as claimed in claim 3, wherein said locking assembly includes:

the fixed end of the locking power piece is fixedly connected with the tunneling cutter, the movable end of the locking power piece is connected with a locking piece, and the locking power piece drives the locking piece to move towards or away from the cutting cutter;

and the cutting tool is provided with a locking position which can be matched with the locking piece when the cutting tool moves for a preset distance along the axial direction.

5. The communication channel tunneling apparatus according to claim 3, further comprising:

the auxiliary cutter is arranged at the end part of the tunneling cutter close to the cutting cutter;

an auxiliary cutter power drive device for driving the auxiliary cutter to extend/retract relative to the end wall of the tunneling cutter; when the auxiliary cutter extends out, the distance between the auxiliary cutter and the axial line of the tunneling equipment body is larger than or equal to the distance between the tunneling equipment body and the axial line of the tunneling equipment body, so that the tunneling cutter is assisted to tunnel.

6. The communication channel excavating equipment of claim 5 wherein a soil bin for storing soil is formed between the excavating tool and the excavating equipment body; the locking assembly is arranged on a cutter head of the tunneling cutter along the axial direction of the tunneling equipment body and is fixed, and the cutter head is provided with a radial through hole or a radial groove which is used for enabling the locking assembly to extend out along the axial direction which is perpendicular to the tunneling equipment body; the cutter head is an arc-shaped cutter head with an arc-shaped front section.

7. The communication channel excavating equipment of claim 6 wherein the auxiliary cutter power driving device is the locking assembly, and the side wall of the locking assembly facing the excavating direction is provided with a mounting groove for accommodating the auxiliary cutter so that the auxiliary cutter can pass through the radial through hole;

and an auxiliary extending device which is connected with the auxiliary cutter and drives the auxiliary cutter to protrude out of the mounting groove for auxiliary tunneling is arranged in the mounting groove.

8. The communication channel excavating equipment according to any one of claims 1 to 7 wherein the excavating equipment body comprises an excavating cylinder body and a shield partition provided at an end wall of the excavating cylinder body in a radial direction of the excavating equipment body;

the cutting tool is sleeved in the tunneling cylinder body through a rotary bearing so as to rotate relative to the tunneling cylinder body under the drive of the rotation driving device;

one end of the sliding driving device is fixedly connected with the shield body partition plate, and the other end of the sliding driving device is connected with the cutting tool through the rotary bearing.

9. The communication channel excavating equipment of claim 8 wherein the excavating equipment body further comprises:

a duct piece connecting cylinder arranged opposite to the end wall of the tail part of the tunneling cylinder and used for connecting a connecting channel duct piece;

and a plurality of deviation rectifying oil cylinders for connecting the duct piece connecting cylinder and the tunneling cylinder are arranged between the duct piece connecting cylinder and the tunneling cylinder, and all the deviation rectifying oil cylinders are uniformly arranged along the circumferential direction of the tunneling equipment body.

10. The communication channel tunneling apparatus according to claim 9, further comprising:

the spiral conveyor is arranged in a cavity formed by the tunneling cylinder and used for collecting and conveying soil mass crushed by the tunneling cutter, and the head end of the spiral conveyor protrudes out of the shield body partition plate;

the gate and the slag discharging assembly are connected with the spiral conveyor and are used for conveying the crushed soil body to the outside of the communication channel;

a drive assembly coupled to the screw conveyor to provide power.

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