CN118564258B - A pipe jacking construction device for muddy sand layer using pipe jacking method - Google Patents
A pipe jacking construction device for muddy sand layer using pipe jacking method Download PDFInfo
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- CN118564258B CN118564258B CN202410615606.XA CN202410615606A CN118564258B CN 118564258 B CN118564258 B CN 118564258B CN 202410615606 A CN202410615606 A CN 202410615606A CN 118564258 B CN118564258 B CN 118564258B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1086—Drives or transmissions specially adapted therefor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/11—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/124—Helical conveying means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
- F16L1/036—Laying or reclaiming pipes on land, e.g. above the ground in the ground the pipes being composed of sections of short length
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to the technical field of pipe pushing machines, in particular to a silt sand soil layer pipe pushing construction device of a pipe pushing method, which comprises a machine body, wherein a cutter disc is fixedly arranged on one side of the machine body, a soil pressure bin is arranged on one side of the machine body, which is close to the cutter disc, a screw conveyor is arranged in the machine body and is used for conveying sand in the soil pressure bin, the boosting cylinder is fixed in a tunnel through a positioning plate through the arrangement of the boosting cylinder, so that in the process of pushing the machine body by the boosting cylinder through a hydraulic push rod, the positioning plate inserted into the inner wall of the tunnel can improve enough supporting force for the boosting cylinder, the hydraulic push rod can push the machine body to drive the cutter disc to open the tunnel during the next pipe pushing process, the soil pressure balanced pipe pushing machine can still normally open the tunnel during the pipe pushing process, the construction period is greatly saved, the construction efficiency of the soil pressure balanced pipe pushing machine is improved, and the practicability of the soil pressure balanced pipe pushing machine is effectively improved.
Description
Technical Field
The invention relates to the technical field of push bench, in particular to a silt sand soil layer push bench construction device adopting a push bench pushing method.
Background
The pipe jacking construction is a non-excavation construction method, and is a pipe jacking buried construction technology without excavation or with less excavation; the jacking pipe method construction is to overcome the friction force between the jacking pipe and the surrounding soil by means of jacking force generated by jacking equipment in a working pit, jack the jacking pipe into the soil according to the designed gradient and transport away the earth; the principle is that the push bench is pushed from the working pit to the receiving pit to be lifted all the time by means of the thrust force of the main top oil cylinder, the push bench, the relay, and the like, and the push bench is buried between the two pits after the push bench is followed;
The soil pressure balance type pipe jacking machine is widely used in underground construction, and is particularly suitable for pipe jacking construction of a silt sand soil layer; when the soil pressure balance push bench works, a main jacking oil cylinder in a working well pushes the soil pressure balance push bench to advance, and meanwhile, a large cutter disc rotates to cut soil, the cut soil enters a sealed soil bin and a screw conveyor and is extruded to form a compressed soil with certain soil pressure;
When the cutter head of the existing soil pressure balance type pipe pushing machine is used for cutting on a construction site, the main jacking oil cylinder is required to push the soil pressure balance type pipe pushing machine to advance in a cut tunnel through the pipe pushing machine, when one pipe pushing machine pushes the tunnel, the next pipe pushing machine is required to be installed to continuously push the soil pressure balance type pipe pushing machine to advance, a certain time is consumed for installing the next pipe pushing machine, the soil pressure balance type pipe pushing machine cannot normally perform cutting work during pipe pushing installation, the construction period of the whole soil pressure balance type pipe pushing machine is prolonged, and the construction efficiency of the soil pressure balance type pipe pushing machine is greatly reduced.
In view of the above, the present invention provides a construction device for jacking a silt sand soil layer by a jacking pipe pushing method, which solves the above technical problems.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a silt sand soil layer pipe jacking construction device of a pipe jacking propelling method, which is characterized in that a boosting cylinder is arranged, so that the boosting cylinder can be fixed in a tunnel through a positioning plate, in the process that the boosting cylinder pushes a machine body to excavate the tunnel through a hydraulic push rod, the positioning plate inserted into the inner wall of the tunnel can improve enough supporting force for the boosting cylinder, the hydraulic push rod can push the machine body to drive a cutter head to excavate the tunnel in the next pipe jacking period, the soil pressure balance type pipe jacking machine can still normally excavate the tunnel in the pipe jacking period, the construction period is greatly saved, the construction efficiency of the soil pressure balance type pipe jacking machine is improved, and the practicability of the soil pressure balance type pipe jacking machine is effectively improved.
The technical scheme adopted for solving the technical problems is that the silt sand soil layer jacking construction device of the jacking propulsion method comprises the following components:
The machine comprises a machine body, a soil pressing bin, a screw conveyor, a driving motor and a rotary shaft, wherein a cutter disc is fixedly arranged on one side of the machine body;
The device comprises a machine body, a boosting cylinder, a hydraulic push rod, a positioning module and a positioning module, wherein the boosting cylinder is positioned on one side of the machine body, far away from a cutter head, the boosting cylinder is in sliding connection with the machine body, the inner wall of the boosting cylinder is fixedly provided with the hydraulic push rod, one end of the hydraulic push rod, far away from the boosting cylinder, is fixedly connected with the machine body, the side wall of the boosting cylinder is fixedly provided with the positioning module, and the positioning module is used for fixing the boosting cylinder in a tunnel.
Preferably, the positioning module includes:
The hydraulic pushing rod is fixedly connected with the fixing block at one end far away from the engine body, and a positioning groove penetrating through the outer wall of the boosting cylinder is formed at one end of the fixing block close to the boosting cylinder;
The screw rod rotates at the bottom of the positioning groove, a spiral groove is formed in one surface of the positioning plate, close to the screw rod, of the screw rod, one end, far away from the positioning groove, of the screw rod is in spiral transmission connection with the spiral groove, and the driving motor drives the screw rod to rotate through the transmission unit.
The transmission unit comprises a transmission rod, a cavity is formed in the fixed block, the transmission rod is in belt transmission connection with the driving motor through a transmission belt, a bevel gear shaft is rotatably connected to one surface of the positioning plate, which is close to the transmission rod, one end of the screw, which is far away from the positioning plate, is fixedly connected with a bevel gear, the bevel gear shaft and the bevel gear are in meshed transmission in the cavity, and the transmission rod is used for driving the bevel gear shaft to rotate.
The driving gear is fixedly connected to one end, close to the bevel gear shaft, of the transmission rod, a bevel gear ring is connected to the surface of the bevel gear shaft in a sliding mode, the bevel gear ring is fixedly connected with the inner wall of the cavity through a supporting spring, an electromagnetic ring opposite to the bevel gear ring is embedded into the inner wall of the cavity, and the driving gear is used for driving the bevel gear ring to rotate.
Preferably, an accelerating gear is arranged between the driving gear and the bevel gear ring, the accelerating gear is meshed with the driving gear for transmission, a transmission gear is fixedly connected to one surface of the accelerating gear, which is close to the bevel gear ring, and the transmission gear is meshed with the bevel gear ring for transmission.
Preferably, a storage tank is arranged on one surface of the boosting cylinder, which is close to the engine body, an air bag is fixedly arranged in the storage tank, one end, which is far away from the storage tank, of the air bag is fixedly connected with the engine body, and an air hole communicated with the air bag is formed in the inner wall of the boosting cylinder.
Preferably, one side of the machine body, which is close to the boosting cylinder, is provided with an exhaust port, the exhaust port is communicated with the air bag, and check valves are arranged in the exhaust port and the air hole.
The air bag is characterized in that a supporting rod is arranged in the air bag, one end of the supporting rod is fixedly connected to the bottom of the storage tank, a round groove is formed in one end, far away from the storage tank, of the supporting rod, a connecting rod is connected in a sliding mode in the round groove, one end, far away from the supporting rod, of the connecting rod is fixedly connected with the machine body, a through groove communicated with the air outlet is formed in the connecting rod, and one end, far away from the air outlet, of the through groove penetrates through the supporting rod and is communicated with the storage tank.
The beneficial effects of the invention are as follows:
1. The hydraulic push rod is arranged, so that the boosting cylinder can be fixed in a tunnel through the positioning plate, in the process that the boosting cylinder pushes the machine body to open the tunnel through the hydraulic push rod, the positioning plate inserted into the inner wall of the tunnel can improve enough supporting force for the boosting cylinder, the hydraulic push rod can push the machine body to drive the cutter disc to open the tunnel during the next pipe jacking installation, the earth pressure balanced pipe jacking machine can still normally open the tunnel during the pipe jacking installation, the construction period is greatly saved, the construction efficiency of the earth pressure balanced pipe jacking machine is improved, and the practicability of the hydraulic push rod is effectively improved.
2. The invention has the advantages that the rotation number of the accelerating gear is smaller than that of the driving gear by arranging the accelerating gear, so that the rotation speed of the accelerating gear is accelerated, the driving gear and the accelerating gear are fixedly connected and coaxial, the accelerating gear with the rotation speed being accelerated can drive the driving gear fixedly connected with the accelerating gear to rotate quickly, the speed of the driving gear driving the bevel gear shaft through the bevel gear ring is accelerated, the speed of the bevel gear shaft driving the bevel gear is accelerated, the speed of the screw driving the positioning plate to extend out of and enter the positioning groove is further accelerated, the time for fixing and separating the boosting cylinder from the tunnel is saved, and the construction efficiency of the soil pressure balance type push bench is effectively improved.
Drawings
The invention will be further described with reference to the drawings and embodiments.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is an enlarged view at A in FIG. 2;
fig. 4 is an enlarged view at B in fig. 2;
FIG. 5 is a rear view of the present invention;
FIG. 6 is a perspective view of the bevel gear used in the present invention;
The device comprises a machine body, a cutter head, a 12, a soil pressing bin, a 13, a screw conveyer, a 14, a driving motor, a 15, a hydraulic push rod, a 16, an exhaust port, a 17, a one-way valve, a 2, a boosting cylinder, a 21, a fixed block, a 211, a positioning groove, a 212, a positioning plate, a 213, a screw rod, a 214, a spiral groove, a 215, a bevel gear, a 22, a transmission rod, a 221, a transmission belt, a 222, a driving gear, a 23, a cavity, a 231, a bevel gear shaft, a 232, a bevel gear ring, a 233, a supporting spring, a 234, an electromagnetic ring, a 24, an accelerating gear, a 241, a transmission gear, a 25, a storage groove, a 251, an airbag, a 252, a supporting rod, 253, a round groove, a 254, a connecting rod, a 255, a through groove and a 26 and an air hole.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 6, the silt sand soil layer pipe-jacking construction device of the pipe-jacking propelling method of the invention comprises:
The machine comprises a machine body 1, wherein a cutter head 11 is fixedly arranged on one side of the machine body 1, a soil pressing bin 12 is arranged on one surface of the machine body 1, which is close to the cutter head 11, a screw conveyor 13 is arranged in the machine body 1, the screw conveyor 13 is used for conveying sand and soil in the soil pressing bin 12, a driving motor 14 is fixedly arranged in the machine body 1, and the driving motor 14 is used for driving the cutter head 11 to rotate;
the device comprises a boosting cylinder 2, wherein the boosting cylinder 2 is positioned on one side of a machine body 1, which is far away from a cutter head 11, the boosting cylinder 2 is in sliding connection with the machine body 1, a hydraulic push rod 15 is fixedly arranged on the inner wall of the boosting cylinder 2, one end of the hydraulic push rod 15, which is far away from the boosting cylinder 2, is fixedly connected with the machine body 1, a positioning module is fixedly arranged on the side wall of the boosting cylinder 2, and the positioning module is used for fixing the boosting cylinder 2 in a tunnel.
As an embodiment of the present invention, the positioning module includes:
the device comprises a body 1, a fixing block 21, a hydraulic push rod 15, a positioning plate 212, a positioning groove 211, a positioning plate 212 and a positioning plate, wherein the fixing block 21 is fixedly connected with the inner wall of the boosting cylinder 2;
The screw 213 rotates at the bottom of the positioning groove 211, a spiral groove 214 is formed in one surface of the positioning plate 212, which is close to the screw 213, one end of the screw 213, which is far away from the positioning groove 211, is in spiral transmission connection with the spiral groove 214, and the driving motor 14 drives the screw 213 to rotate through a transmission unit.
As one implementation mode of the invention, the transmission unit comprises a transmission rod 22, a cavity 23 is formed in the fixed block 21, the transmission rod 22 is in belt transmission connection with the driving motor 14 through a transmission belt 221, one surface of the positioning plate 212, which is close to the transmission rod 22, is rotatably connected with a bevel gear shaft 231, one end of the screw 213, which is far away from the positioning plate 212, is fixedly connected with a bevel gear 215, the bevel gear shaft 231 and the bevel gear 215 are in meshed transmission in the cavity 23, and the transmission rod 22 is used for driving the bevel gear shaft 231 to rotate.
As one implementation mode of the invention, one end of the transmission rod 22, which is close to the bevel gear shaft 231, is fixedly connected with a driving gear 222, the surface of the bevel gear shaft 231 is connected with a bevel gear ring 232 in a sliding manner, the bevel gear ring 232 is fixedly connected with the inner wall of the cavity 23 through a supporting spring 233, an electromagnetic ring 234 which is opposite to the bevel gear ring 232 is embedded into the inner wall of the cavity 23, and the driving gear 222 is used for driving the bevel gear ring 232 to rotate.
As one implementation mode of the invention, an accelerating gear 24 is arranged between the driving gear 222 and the bevel gear ring 232, the accelerating gear 24 is meshed with the driving gear 222 for transmission, and one surface of the accelerating gear 24 close to the bevel gear ring 232 is fixedly connected with a transmission gear 241;
When the cutter head 11 of the existing soil pressure balance type pipe pushing machine is cut on a construction site, the main jacking oil cylinder needs to push the soil pressure balance type pipe pushing machine to advance in a cut tunnel through a pipe pushing machine, and when one pipe pushing machine pushes the tunnel, the next pipe pushing machine needs to be installed to continuously push the soil pressure balance type pipe pushing machine to advance;
When the hydraulic jack works, a main jacking oil cylinder is firstly arranged in a working pit, then the hydraulic jack is hoisted into the working pit, a machine body 1 of the hydraulic jack is positioned at one side of the main jacking oil cylinder, a cutter disc 11 of the hydraulic jack is constructed towards the direction of the other working pit, then the main jacking oil cylinder is controlled to push the machine body 1 to move towards the direction close to the inner wall of the working pit by pushing a boosting cylinder 2, the machine body 1 drives the cutter disc 11 to be in contact with the inner wall of the working pit, at the moment, a driving motor 14 drives the cutter disc 11 to rotate, the cutter disc 11 cuts the inner wall of the working pit to form a tunnel, an electromagnetic ring 234 is in a power-off state under the initial state, a bevel gear ring 232 is supported by a supporting spring 233 and is positioned at one side of the driving gear 241, at the moment, the driving gear 241 is separated from the bevel gear ring 232 and is not in a meshed state, at the moment, the driving motor 14 drives the cutter disc 11 to rotate, the driving motor 14 can drive a driving rod 22 to rotate through a driving gear 222 and a driving gear 241 to drive the bevel gear ring 232 to rotate, at the moment, the positioning plate 212 is positioned in the positioning plate 212 and cannot be prevented from extending into the positioning plate 211;
The machine body 1 is pushed by the main jacking oil cylinder to continuously drill in the process; the machine body 1 can drive the cutter head 11 to extrude and cut sandy soil; the machine body 1 is internally provided with a screw conveyer 13 communicated with the soil pressing bin 12, the screw conveyer 13 can discharge the soil in the soil pressing bin 12, and is convenient for the screw conveyer 13 to discharge the soil in the soil pressing bin 12, a water pump is often added into the machine body 1 by workers, so that the water pump washes the soil in the soil pressing bin 12, the soil is soft and is convenient to discharge, the machine body 1 is continuously drilled in through a cutter disc 11 along with the pushing of a main jacking cylinder, when the extension of the main jacking cylinder is maximum, the main jacking cylinder is controlled to shrink, a section of jacking pipe is lifted into a working pit, the jacking pipe is positioned between the main jacking cylinder and the jacking cylinder 2 at the moment, the main jacking cylinder can move away from the main jacking cylinder by pushing the jacking cylinder 2, the machine body 1 and the cutter disc 11 until the extension of the main jacking cylinder is maximum, the section of the jacking cylinder 2 completely enters the machine body 1, the depth of the main jacking cylinder is increased, the depth of the main jacking cylinder is limited by the main jacking cylinder is not increased, and the depth of the main jacking cylinder 2 is increased when the main jacking cylinder enters the main jacking cylinder is not in the working pit, and the depth of the main jacking cylinder is increased, and the main jacking cylinder is not driven to enter the main jacking cylinder is in the main jacking cylinder 2, however, at this time, an operator of the earth pressure balanced pipe pushing jack can directly control the electrification of the electromagnetic ring 234; so that the electromagnetic ring 234 can adsorb the bevel gear ring 232 to press the supporting spring 233 and approach the transmission gear 241; so that the transmission gear 241 is engaged with the bevel gear ring 232; at this time, the driving motor 14 is controlled to rotate reversely, the driving motor 14 which rotates reversely can drive the driving rod 22 to rotate through the driving belt 221, the driving gear 222 which enables the driving rod 22 to drive the surface to be fixedly connected rotates, the accelerating gear 24 is fixedly connected with the driving gear 241 because the driving gear 222 is meshed with the accelerating gear 24, the driving gear 222 drives the bevel gear ring 232 to rotate through the accelerating gear 24 and the driving gear 241, the bevel gear ring 232 can drive the bevel gear shaft 231 which is connected with the bevel gear ring 232 in a sliding way to rotate synchronously, the bevel gear shaft 231 is meshed with the bevel gear 215, the bevel gear shaft 231 can drive the bevel gear 215 to rotate, the bevel gear 215 can drive the screw 213 which is fixedly connected with the bevel gear shaft 215 to rotate, the screw 213 is connected in the screw groove 214 in a screw transmission way, the rotating screw 213 can extend out of the screw groove 214 continuously relative to the positioning plate 212, the positioning plate 212 is pushed by the screw 213 to extend out of the positioning groove 211 continuously, the positioning plate 212 can be inserted into the sand soil on the inner wall of the tunnel, the booster cylinder 2 is fixed in the bevel gear ring 231, the booster cylinder 231 can drive the bevel gear shaft 231 to slide-connected with the bevel gear shaft 231, the bevel gear shaft 231 is meshed with the bevel gear shaft 215, the bevel gear shaft 215 is meshed with the bevel gear 215, the screw 213 can drive the screw 213 rotates, the screw 213 rotates relative to the screw 213 to the screw gear 213 is arranged in the screw groove 214, the positioning gear plate 211 is arranged in the screw groove, the positioning groove 211 is arranged in the positioning the positioning the bevel gear rotating the bevel gear bevel gear bevel the bevel the can The machine body 1 pushes the cutterhead 11 to continue to drill into until the jacking pipe working pit is completely installed, the electromagnetic ring 234 is controlled to be electrified again, the driving motor 14 which rotates positively drives the screw 213 to rotate reversely at the moment, the screw 213 is led to enter the spiral groove 214 in a spiral way, the screw 213 in the spiral groove 214 pushes the positioning plate 212 to enter the positioning groove 211 through the groove wall of the spiral groove 214, the boosting cylinder 2 is not fixed on the inner wall of a tunnel through the positioning plate 212 any more, the main jacking cylinder is controlled to push the boosting cylinder 2 through the jacking pipe at the moment, the hydraulic push rod 15 continuously stretches and stretches while the main jacking cylinder continuously stretches, the boosting cylinder 2 can continuously approach the machine body 1 until the boosting cylinder 2 contacts the machine body 1, then the main jacking cylinder 2 drives the machine body 1 to continuously drill into the tunnel through the jacking cylinder 2, no positioning plate 212 is manufactured, the cutterhead 11 blocked by sand can generate blocking force to the boosting cylinder 2 through the machine body 1 when the machine body 1 is pushed by the boosting cylinder 2, the boosting cylinder 2 is pushed backwards under the blocking force, and the hydraulic push rod 2 can be pushed by the machine body 1 during the process of supporting the jack cylinder 2 is pushed by the jack rod 2 to be pushed by the jack rod 15 to be pushed by the jack rod 2;
The soil pressure balance type pipe jacking machine works in the sand layer, so that sand cannot enter the machine body 1, the transmission gear 241 and the bevel gear ring 232 are meshed for transmission, the driving gear 222 and the accelerating gear 24 are meshed for transmission, if transmission elements such as the transmission gear 241, the bevel gear ring 232, the driving gear 222 and the accelerating gear 24 are exposed out of the fixed block 21, the sand falls into meshing gaps of the transmission elements such as the transmission gear 241, the bevel gear ring 232, the driving gear 222 and the accelerating gear 24, so that the transmission elements are worn, and the service life is further reduced, and the cavity 23 is formed in the fixed block 21, so that the transmission elements are positioned in the cavity 23, the entering of external sand is avoided, and the service life of the transmission elements such as the transmission gear 241, the bevel gear ring 232, the driving gear 222 and the accelerating gear 24 is further ensured;
The driving motor 14 drives the cutterhead 11 to rotate, so that the driving motor 14 has a certain driving force to drive the cutterhead 11 to cut soil, the excessive abrasion of a cutter, overload and vibration of equipment and the like are caused by the fact that the excessive rotation speed can influence the cutting effect and construction safety, the driving speed of the driving motor 14 is not too high, so that enough force and cutting effect can be ensured, the rotation speed of the accelerating gear 24 is smaller than that of the driving gear 241 by arranging the accelerating gear 24, so that the rotation speed of the accelerating gear 24 is increased, the driving gear 241 is fixedly connected with the accelerating gear 24 and coaxial, the accelerating gear 24 with the increased rotation speed can drive the driving gear 241 fixedly connected with the accelerating gear to rotate quickly, the speed of the driving gear 241 drives the bevel gear shaft 231 through the bevel gear ring 232 is increased, the speed of the bevel gear 215 is increased, the positioning plate 212 is driven by the screw 213 to extend out of and enter the positioning groove 211, the fixing and separating time of the pushing cylinder 2 and a tunnel is saved, and the construction efficiency of the soil pressure balancing machine is effectively improved;
The invention is provided with the boosting cylinder 2, so that the boosting cylinder 2 can be fixed in a tunnel through the positioning plate 212, in the process that the boosting cylinder 2 pushes the machine body 1to open the tunnel through the hydraulic push rod 15, the positioning plate 212 inserted into the inner wall of the tunnel can improve enough supporting force for the boosting cylinder 2, the hydraulic push rod 15 can push the machine body 1to drive the cutter disc 11 to open the tunnel during the next pipe jacking installation, the soil pressure balance type pipe jacking machine can still normally open the tunnel during the pipe jacking installation, the construction period is greatly saved, the construction efficiency of the soil pressure balance type pipe jacking machine is improved, and the practicability of the soil pressure balance type pipe jacking machine is effectively improved.
As one embodiment of the invention, the booster cylinder 2 is provided with a storage tank 25 on one side close to the machine body 1, an air bag 251 is fixedly arranged in the storage tank 25, one end of the air bag 251 away from the storage tank 25 is fixedly connected with the machine body 1, and the inner wall of the booster cylinder 2 is provided with an air hole 26 communicated with the air bag 251.
In one embodiment of the present invention, the body 1 is provided with an exhaust port 16 on a side thereof adjacent to the booster 2, the exhaust port 16 is communicated with the airbag 251, and the exhaust port 16 and the air hole 26 are provided with a check valve 17.
As one embodiment of the invention, a supporting rod 252 is arranged in the air bag 251, one end of the supporting rod 252 is fixedly connected to the bottom of the storage tank 25, one end of the supporting rod 252 far away from the storage tank 25 is provided with a round groove 253, a connecting rod 254 is connected in a sliding manner in the round groove 253, one end of the connecting rod 254 far away from the supporting rod 252 is fixedly connected with the machine body 1, a through groove 255 communicated with the air outlet 16 is formed in the connecting rod 254, and one end of the through groove 255 far away from the air outlet 16 penetrates through the supporting rod 252 and is communicated with the storage tank 25;
During operation, during installation of the next pipe jacking, the boosting cylinder 2 pushes the machine body 1 to cut in a tunnel, the machine body 1 is pushed to slide along the direction of the boosting cylinder 2 approaching the cutter disc 11, a gap is formed between the boosting cylinder 2 and the machine body 1, sand on the inner wall of the tunnel is easy to fall to the gap between the boosting cylinder 2 and the machine body 1, after the next pipe jacking is completed, the main jacking cylinder pushes the boosting cylinder 2 to approach the machine body 1 through the pipe jacking, the gap between the boosting cylinder 2 and the machine body 1 is continuously reduced, the sand blocking boosting cylinder 2 entering the gap is prevented from approaching the machine body 1, the air bag 251 is arranged, during the process of pushing the machine body 1 by the hydraulic push rod 15, the machine body 1 pulls the air bag 251 to move in the direction away from the storage groove 25, one end of the air bag 251 approaching the bottom of the storage groove 25 is fixedly connected with a circular ring, the circular ring is connected with the storage groove 25 in a sliding mode, the supporting rod 252 is connected with the circular ring in a sliding mode, the circular ring 251 is pulled to slide to the notch of the storage groove 25 through the supporting rod 252, the circular ring 251, the gap between the boosting cylinder 2 and the air bag 251 and the machine body 1 is prevented from being reduced, the sand blocking the air bag 251 entering the air bag 251 is prevented from entering the storage groove 2, the storage groove 252 is prevented from entering the storage groove 25, the storage groove 252 is prevented from being pushed to be greatly deformed, the air bag 251 is prevented from entering the storage groove 251, the storage groove 25 is prevented from entering the storage groove 25, the storage groove 2 is prevented from entering the storage groove, and the air bag 251 is prevented from entering the storage groove, and the air bag 2 is pushed, and the air When the air bag 251 stretches out of the storage tank 25, air in the machine body 1 enters the storage tank 25 through the one-way valve 17 of the air hole 26, the machine body 1 can pull the connecting rod 254 to stretch out of the round groove 253 due to the fact that the connecting rod 254 is fixedly connected with the machine body 1, the connecting rod 254 stretching out of the round groove 253 can effectively support the air bag 251 stretching out of the storage tank 25, when the main jacking cylinder pushes the boosting cylinder 2 to be close to the machine body 1 through the jacking pipe, the air bag 251 is extruded into the storage tank 25, air in the storage tank 25 enters the air outlet 16 through the through groove 255 and is discharged through the air outlet 16, air ejected by the air outlet 16 can be blown to the gap between the boosting cylinder 2 and the machine body 1, sand on the surface of the air bag 251 can be blown out of the gap between the boosting cylinder 2 and the machine body 1 due to the blowing of the air flow, if sand falling onto the surface of the air bag 251 is dry or in a lump shape, the air flow discharged by the air outlet 16 is difficult to be blown out, the air hole 26 can be communicated with the water pump through the water pipe, the air pump 16 is filled into the air outlet 16, the air outlet 16 is enabled to be filled through the air outlet 255, the air outlet 16 is enabled to be blown out of the gap between the air outlet 16 and the air bag 2 can be blown out of the air outlet 1 through the air outlet 16, and the gap between the air inlet 1 can be conveniently diluted, and the air inlet 1 can be blown out of the air inlet 1 can be more easily, and the air flow can be diluted, and the air flow can be conveniently can be blown into the gap between the air inlet 1 and the air pump 1 through the air outlet 1 and the air outlet 2 can be conveniently can be blown through the air gap between the air outlet and the air pump through the air pump after the air pump and the air pump.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention, and furthermore, the terms "first", "second", "third", etc. are merely used for distinguishing the description, and should not be construed as indicating or implying relative importance.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A silt sand soil layer pipe-jacking construction device of a pipe-jacking propelling method, comprising:
The machine comprises a machine body (1), wherein a cutter head (11) is fixedly arranged on one side of the machine body (1); the machine is characterized in that a soil pressing bin (12) is formed in one surface of the machine body (1) close to the cutter head (11), a screw conveyor (13) is arranged in the machine body (1), the screw conveyor (13) is used for conveying sand in the soil pressing bin (12), a driving motor (14) is fixedly arranged in the machine body (1), and the driving motor (14) is used for driving the cutter head (11) to rotate, and the machine is characterized in that:
the device comprises a boosting cylinder (2), a hydraulic push rod (15), a positioning module and a control module, wherein the boosting cylinder (2) is positioned on one side of a machine body (1) far away from a cutter head (11), the boosting cylinder (2) is in sliding connection with the machine body (1), the inner wall of the boosting cylinder (2) is fixedly provided with the hydraulic push rod (15), one end of the hydraulic push rod (15) far away from the boosting cylinder (2) is fixedly connected with the machine body (1), and the side wall of the boosting cylinder (2) is fixedly provided with the positioning module which is used for fixing the boosting cylinder (2) in a tunnel;
The positioning module comprises:
The hydraulic device comprises a machine body (1), a fixing block (21), a hydraulic push rod (15), a positioning plate (212) and a positioning plate, wherein the fixing block (21) is fixedly connected with the inner wall of the boosting cylinder (2), one end of the hydraulic push rod (15) far away from the machine body (1) is fixedly connected with the fixing block (21), one end of the fixing block (21) close to the boosting cylinder (2) is provided with a positioning groove (211) penetrating through the outer wall of the boosting cylinder (2), and the positioning plate (212) is connected in a sliding and sealing manner;
The screw (213) rotates at the bottom of the positioning groove (211), a spiral groove (214) is formed in one surface of the positioning plate (212) close to the screw (213), one end of the screw (213) far away from the positioning groove (211) is in spiral transmission connection in the spiral groove (214), and the driving motor (14) drives the screw (213) to rotate through a transmission unit;
The transmission unit comprises a transmission rod (22), a cavity (23) is formed in the fixed block (21), the transmission rod (22) is in belt transmission connection with the driving motor (14) through a transmission belt (221), a bevel gear shaft (231) is rotatably connected to one surface of the positioning plate (212) close to the transmission rod (22), a bevel gear (215) is fixedly connected to one end of the screw (213) far away from the positioning plate (212), the bevel gear shaft (231) and the bevel gear (215) are in meshed transmission in the cavity (23), and the transmission rod (22) is used for driving the bevel gear shaft (231) to rotate;
The driving device comprises a driving rod (22), a bevel gear ring (232), a supporting spring (233), an electromagnetic ring (234) and a driving gear (222), wherein the driving gear (222) is fixedly connected to one end of the driving rod (22) close to the bevel gear shaft (231), the surface of the bevel gear shaft (231) is connected with the bevel gear ring (232) in a sliding mode, the bevel gear ring (232) is fixedly connected with the inner wall of a cavity (23) through the supporting spring (233), the electromagnetic ring (234) opposite to the bevel gear ring (232) is embedded into the inner wall of the cavity (23), and the driving gear (222) is used for driving the bevel gear ring (232) to rotate;
An accelerating gear (24) is arranged between the driving gear (222) and the bevel gear ring (232), the accelerating gear (24) is meshed with the driving gear (222) for transmission, a transmission gear (241) is fixedly connected to one surface, close to the bevel gear ring (232), of the accelerating gear (24), and the transmission gear (241) is meshed with the bevel gear ring (232) for transmission.
2. The device for pushing the pipe on the silt sand soil layer by the pipe pushing method, which is disclosed by claim 1, is characterized in that a storage tank (25) is formed on one surface, close to a machine body (1), of the boosting cylinder (2), an air bag (251) is fixedly arranged in the storage tank (25), one end, far away from the storage tank (25), of the air bag (251) is fixedly connected with the machine body (1), and an air hole (26) communicated with the air bag (251) is formed in the inner wall of the boosting cylinder (2).
3. The device for pushing the pipe on the silt sand soil layer by the pipe pushing method according to claim 2 is characterized in that an exhaust port (16) is formed in one surface of the machine body (1) close to the pushing cylinder (2), the exhaust port (16) is communicated with an air bag (251), and one-way valves (17) are arranged in the exhaust port (16) and the air hole (26).
4. The silt sand soil layer pipe jacking construction device adopting the pipe jacking method according to claim 3 is characterized in that a supporting rod (252) is arranged in the air bag (251), one end of the supporting rod (252) is fixedly connected to the bottom of the storage tank (25), a round groove (253) is formed in one end, far away from the storage tank (25), of the supporting rod (252), a connecting rod (254) is connected in a sliding mode in the round groove (253), one end, far away from the supporting rod (252), of the connecting rod (254) is fixedly connected with the machine body (1), a through groove (255) communicated with the exhaust port (16) is formed in the connecting rod (254), and one end, far away from the exhaust port (16), of the through groove (255) penetrates through the supporting rod (252) and is communicated with the storage tank (25).
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| CN202410615606.XA CN118564258B (en) | 2024-05-17 | 2024-05-17 | A pipe jacking construction device for muddy sand layer using pipe jacking method |
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| CN115306415A (en) * | 2022-08-03 | 2022-11-08 | 南京南部路桥建设(集团)有限公司 | A small-diameter pipeline jacking device and construction method |
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