CN216518002U - Pipe jacking machine capable of preventing machine head from returning slag - Google Patents
Pipe jacking machine capable of preventing machine head from returning slag Download PDFInfo
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- CN216518002U CN216518002U CN202123397306.XU CN202123397306U CN216518002U CN 216518002 U CN216518002 U CN 216518002U CN 202123397306 U CN202123397306 U CN 202123397306U CN 216518002 U CN216518002 U CN 216518002U
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- shield tail
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- 239000002893 slag Substances 0.000 title claims abstract description 37
- 239000002689 soil Substances 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims description 44
- 239000010959 steel Substances 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 18
- 239000013049 sediment Substances 0.000 claims description 10
- 239000004519 grease Substances 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000005553 drilling Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 14
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000010079 rubber tapping Methods 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 239000000243 solution Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a push bench capable of preventing slag from returning to a machine head. Relates to the technical field of pipe jacking engineering construction. The device specifically comprises a machine head used for rotatably tapping and a machine body arranged at the tail of the machine head and used for pushing and guiding the pipeline; the diameter of the machine head is larger than that of the machine body, a rotary cutter disc used for cutting a soil layer is arranged at the top of the machine head, a shield tail brush device is arranged on the machine body and used for blocking return slag generated when the machine head is opened in a rotating mode. The machine body is provided with the shield tail brush device, when a small part of soil blocks cut by the rotary cutter head reach the outer wall of the machine body at the rear part from the outer side of the machine head, the shield tail brush device can block the soil blocks, so that the soil blocks are prevented from reaching the outer wall of the pipeline, slag is collected on the outer wall of the pipeline, and the pipeline can smoothly move in the channel.
Description
Technical Field
The utility model relates to the technical field of pipe jacking engineering construction, in particular to a pipe jacking machine capable of preventing machine head from returning slag.
Background
With the development of pipeline construction, when a pipeline passes through special sections such as highways, railways, buildings and the like, the traditional manual soil digging and pipe jacking construction is not suitable for field construction due to the defects of easy collapse, low efficiency, restriction by surrounding environment and the like, the mud-water balance pipe jacking construction practically solves the problems existing in the construction, the non-excavation penetration construction is successfully applied more and more, however, in the mud-water balance pipe jacking construction process, the phenomenon that rock blocks cut by a machine head fall to the outer wall of the pipeline behind the machine head due to the fact that the diameter of the machine head is larger than the diameter of the pipeline and gaps exist between the outer side of the pipe wall and the inner side of a hole wall, the outer wall of the pipeline is subjected to slag collection, the formation of slag clamping, pipe holding and jacking force increase, the loss of anti-drag mud of an inclined downward straight line section is serious, the problem of effective anti-drag cannot be caused, and even the failure of pipe jacking can be caused.
Chinese patent CN212898300U, published japanese patent 2013-11-27 disclose a push bench drill bit and push bench, including a drill body, a soil inlet is provided on the surface of the drill body, a soil discharge pipe is fixedly connected inside the drill body, a screw rod is rotatably connected inside the soil discharge pipe, two limiting rods are symmetrically distributed and fixedly connected to the surface of the screw rod, a motor is provided at one end of the screw rod, a push bench is provided at one side of the motor, and the push bench is fixedly connected to the motor. The utility model discloses an use the hob to transport earth for earth is difficult to block up in the pipeline in the ground bottom, has made things convenient for the work of push bench. However, in the pipe jacking construction process of the pipe jacking machine, the slag returning of the machine head cannot be stopped, so that the rock blocks cut by the machine head fall to the outer wall of the pipeline behind the machine head, and the slag collecting of the outer wall of the pipeline is caused.
Disclosure of Invention
The utility model aims to provide a push bench capable of preventing slag from returning to a machine head in the process of push bench construction, aiming at the defects of the prior art.
The utility model provides a push bench for preventing slag return of a head, which comprises a head for rotating and drilling, and a body arranged at the tail of the head and used for pushing and guiding a pipeline; the aircraft nose diameter is greater than the organism diameter, the aircraft nose top is equipped with the rotatory blade disc that is used for cutting the soil layer, be equipped with shield tail brush device on the organism, shield tail brush device is used for right the sediment that returns that produces when the rotatory trompil of aircraft nose blocks.
Furthermore, the shield tail brush device is made of flexible materials, and the extension length of the shield tail brush device on the machine body exceeds the range of the machine head.
Furthermore, the shield tail brush device is arranged on the machine body in a plurality.
Furthermore, one end of the shield tail brush device, which is far away from the end connected with the machine body, inclines towards the jacking direction of the pipeline.
Further, still including locating adjacent two the oiling mouth between the shield tail brush device, be equipped with the oiling pipe in the organism, the oiling mouth will the oiling pipe with the outside intercommunication of organism, be used for supplying grease in the oiling pipe spouts.
Further, the oil injection nozzles are uniformly distributed along the circumferential direction of the machine body.
Further, the shield tail brush device comprises a first protection plate, a second protection plate and a steel wire bundle, wherein the first protection plate, the second protection plate and the steel wire bundle are encircled on the outer surface of the machine body, the steel wire bundle is arranged between the first protection plate and the second protection plate, and the first protection plate and the second protection plate are made of flexible materials.
Further, the wire harness is a multilayer provided between the first protective sheet and the second protective sheet.
Further, the shield tail brush device comprises a fixing device used for fixing the shield tail brush device on the machine body or dismounting the shield tail brush device from the machine body.
Furthermore, the first protection plate, the steel wire bundle and the second protection plate are fixed together, a plurality of sections of the first protection plate, the steel wire bundle and the second protection plate which are fixed together are encircled on the outer surface of the machine body, and the fixing device comprises a fixing plate arranged at the bottoms of the first protection plate and the second protection plate and a bolt with one end penetrating through the fixing plate and then being in threaded connection with the machine body.
The push bench for preventing the slag return of the head has the following advantages:
(1) the machine body of the push bench is provided with the shield tail brush device, when a small part of soil blocks cut by the rotary cutter head reach the outer wall of the machine body at the rear part from the outer side of the machine head, the shield tail brush device can block the soil blocks, so that the soil blocks are prevented from reaching the outer wall of the pipeline, and the slag collection of the outer wall of the pipeline is prevented, thereby ensuring the smooth advancing of the pipeline in a channel;
(2) the tail brush of the pipe jacking machine is made of flexible materials, and the extension length of the shield tail brush device on the machine body exceeds the range of the machine head, so that the shield tail brush device has a better effect of blocking slag return of the machine head, and the friction force between the shield tail brush device and the inner wall of the channel can be reduced;
(3) the shield tail brush device of the push bench prevents mud liquid filled in the outer wall of a pipeline from flowing back to a mud feeding and discharging system of a machine head when the pipeline goes downhill, so that a large amount of mud liquid is prevented from being lost. The end, far away from the machine body, of the shield tail brush device is inclined towards the jacking direction of the pipeline, so that the shield tail brush device can better prevent mud liquid filled in the outer wall of the pipeline from flowing backwards;
(4) the oil injection nozzle of the pipe jacking machine is arranged between two adjacent shield tail brush devices, and the shield tail brush devices on two sides can prevent grease from flowing out, so that a closed oil way is formed at one end of the outer wall of the machine body, not only can a large amount of mud liquid be prevented from losing, but also water in a channel can be prevented from entering a receiving well with water on the machine head;
(5) according to the push bench, the first protection plate and the second protection plate which are made of flexible materials are respectively wrapped on the two sides of the steel wire bundle, and when the steel wire bundle passes through a rugged channel, the first protection plate and the second protection plate are quickly restored after being deformed, so that the steel wire bundle is driven to be restored to a state of being always abutted to the outer wall of the channel;
(6) this fixing device of pipe pushing jack fixes shield tail brush device on the organism to can dismantle shield tail brush device from the organism through fixing device, thereby brush the device when great wearing and tearing appear at the shield tail, only change shield tail brush device, save manufacturing material, make this pipe pushing jack's practicality stronger.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model. In the drawings, like reference numerals are used to indicate like elements.
FIG. 1 is a schematic structural diagram of a push bench for preventing slag return of a head according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a shield tail brush device of a push bench for preventing slag return at the head of the push bench, which is mounted on a bench body according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a head of a push bench for preventing slag from returning to the head according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a shield tail brush device of a push bench for preventing slag return of a machine head according to an embodiment of the present invention.
In the figure: 1. a machine head; 11. rotating the cutter head; 2. a body; 21. an oil injection nozzle; 3. a shield tail brush device; 31. a first protective plate; 32. a steel wire bundle; 33. a second protective plate; 34. a fixing plate; 4. and (4) a fixing device.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts will fall within the protection scope of the present invention.
Referring to fig. 1 to 4, a push bench for preventing slag from returning to a head according to an embodiment of the present invention includes a head 1 for rotatably drilling a hole, and a body 2 disposed at a tail of the head 1 for guiding a pipeline to be pushed; the diameter of the machine head 1 is larger than that of the machine body 2, the top of the machine head 1 is provided with a rotary cutter head 11 for cutting a soil layer, the machine body 2 is provided with a shield tail brush device 3, and the shield tail brush device 3 is used for blocking return slag generated when the machine head 1 is rotated to open a hole.
In this application, be equipped with rotatory blade disc 11 at 1 top of aircraft nose, rotatory blade disc 11 carries out the rotation cutting to the soil layer, thereby trompil in the soil layer, 1 afterbody of aircraft nose is equipped with organism 2, when aircraft nose 1 and organism 2 march in the soil layer trompil, form the passageway that supplies the pipeline jacking, because the pipeline is followed at the organism 2 back jacking in the soil layer, and the diameter of pipeline is the same with organism 2's diameter, it is more smooth in order to make the jacking of pipeline in the soil layer, set the diameter of aircraft nose 1 into the diameter that is greater than organism 2, the passageway diameter that makes aircraft nose 1 offer in the soil layer is greater than the diameter of pipeline, thereby when making the pipeline jack-in the passageway, as few and the inner wall with the passageway produce the friction as far as possible.
When the rotatory blade disc 11 of organism 2 cuts the soil layer, the soil block that the cutting came down most directly falls into in the aircraft nose 1, get into the mud system of advancing in the organism 2, and finally discharge outside by advancing the mud system of arranging, but wherein there are few soil blocks can arrive rear organism 2's outer wall from the aircraft nose 1 outside, and then reach the pipeline outer wall that follows organism 2 top and advance, fill the clearance between pipeline outer wall and the passageway, thereby increase the frictional force between pipeline and the passageway inner wall, it is more difficult to make the pipeline top advance in the passageway. And can't avoid having the rock piece in the soil layer, the rock piece that rotatory blade disc 11 was cut reachs the pipeline outer wall, causes the pipeline outer wall to collect the sediment, forms the rock sediment card pipe, embraces the pipe, leads to the pipeline can't march in the passageway, and then leads to the push pipe construction to go on.
Therefore, in this application, be equipped with shield tail brush device 3 on organism 2, when the outer wall of rear organism 2 was reachd from the aircraft nose 1 outside to the small part clod that rotatory blade disc 11 cut down, shield tail brush device 3 can block the clod, prevents that the clod from reacing the pipeline outer wall, causes pipeline outer wall collection sediment to guarantee the smooth marcing of pipeline in the passageway.
In this embodiment, the shield tail brush device 3 is made of a flexible material, and the extension length of the shield tail brush device 3 on the machine body 2 exceeds the range of the machine head 1. The shield tail brush is made of flexible materials, so that the extension length of the shield tail brush device 3 on the machine body 2 exceeds the range of the machine head 1, on one hand, when the machine head 1 moves in a soil layer, the extension length of the shield tail brush device 3 on the machine body 2 exceeds the range of the machine head 1, the shield tail brush device 3 can be abutted against the inner wall of a channel cut by the rotary cutter head 11, and the effect of preventing the machine head 1 from returning slag is better by the shield tail brush device 3; on the other hand, the shield tail brush device 3 is made of flexible materials, so that the friction force between the shield tail brush device 3 and the inner wall of the channel can be reduced when the shield tail brush device 3 abuts against the inner wall of the channel cut by the rotary cutter head 11, and the traveling of the machine head 1 and the machine body 2 in the soil layer cannot be greatly hindered, so that the drilling efficiency of the machine head 1 is not influenced.
In the present embodiment, the shield tail brush device 3 is provided in plurality on the machine body 2. When the clods and the rocks cut by the rotary cutter head 11 reach the outer wall of the rear machine body 2 from the outer side of the machine head 1, the shield tail brush device 3 arranged on the machine body 2 can block the clods and the rocks, but because the shield tail brush device 3 is made of flexible materials, when the collision between the clods, the rocks and the rotary cutter head 11 is violent, the speed of the clods and the rocks reaching the outer wall of the rear machine body 2 from the outer side of the machine head 1 is high, the clods and the rocks can penetrate through the shield tail brush device 3 and reach the outer wall of a pipeline pushed in by the machine body 2, and slag collection on the outer wall of the pipeline is caused. Therefore, a plurality of shield tail brush devices 3 are arranged on the machine body 2, even if the cut soil blocks and rock blocks pass through one shield tail brush device 3, the cut soil blocks and rock blocks can be blocked by the other shield tail brush devices 3, and the effect that the shield tail brush devices 3 block the return slag of the machine head 1 is further enhanced.
In this embodiment, the end of the tail brush device 3 away from the connection with the body 2 is inclined toward the direction of the pipeline jacking. In order to enable the pipeline to be more smoothly jacked in the channel formed in the pipe jacking machine, slurry is generally injected on the outer wall of the pipeline, and the friction force between the outer wall of the pipeline and the inner wall of the channel is reduced, so that the jacking resistance of the pipeline is reduced, and the jacking of the pipeline is more smoothly performed. However, the channels formed in the soil layer by the pipe jacking machine are not all formed along the horizontal line, and sometimes the channels are made according to the soil condition, so that the pipeline may ascend or descend in the channels. When the pipe goes downhill, the mud liquid injected from the outer wall of the pipe flows backward to the front of the machine head 1 through the machine body 2 and is discharged out of the machine from the mud inlet and outlet systems in the machine head 1 and the machine body 2, so that the mud liquid is greatly lost, the function of effectively reducing the resistance cannot be achieved, and the failure of pipe jacking can even be caused.
Therefore, in this application, the shield tail brush device 3 not only plays the effect of preventing the aircraft nose 1 from returning the sediment, can also prevent that the mud liquid that the pipeline outer wall was filled from flowing backward to the mud system of advancing of aircraft nose 1 when the pipeline downhill path, causes a large amount of losses of mud liquid. The end, far away from the machine body 2, of the shield tail brush device 3 inclines towards the jacking direction of the pipeline, so that the shield tail brush device 3 can better prevent mud liquid filled in the outer wall of the pipeline from flowing backwards.
In this embodiment, the shield tail brush device further comprises an oil filling nozzle 21 arranged between two adjacent shield tail brush devices 3, an oil filling pipe is arranged in the machine body 2, and the oil filling nozzle 21 communicates the oil filling pipe with the outside of the machine body 2 and is used for spraying grease in the oil filling pipe. Be equipped with a plurality of shield tail brush devices 3 on organism 2, seted up oiling mouth 21 on 2 outer walls of organism between two adjacent shield tail brush devices 3, be equipped with the oiling pipe in the organism 2, oiling mouth 21 is with 2 outside intercommunications of oiling pipe in the organism 2 with the organism to make the grease in the oiling pipe can spray at 2 outer walls of organism through oiling mouth 21, fill the clearance between 2 outer walls of organism and the passageway inner wall. Because the oil injection nozzle 21 is arranged between two adjacent shield tail brush devices 3, the shield tail brush devices 3 on two sides can prevent grease from flowing out, and thus an oil path with one closed end is formed on the outer wall of the machine body 2.
Due to the arrangement of the structure, on one hand, the two adjacent shield tail brush devices 3 and the closed oil path formed by grease between the two shield tail brush devices can better prevent mud liquid filled on the outer wall of the pipeline from flowing backwards into a mud feeding and discharging system of the machine head 1 to cause a large amount of loss of the mud liquid; on the other hand, when the pipe jacking machine advances in the soil layer and a channel for jacking the pipeline is formed, water inevitably flows into the channel due to the existence of underground water. When the machine head 1 reaches the receiving well, the closed oil circuit formed by the two adjacent shield tail brush devices 3 and the grease between the two shield tail brush devices can block water in the channel, so that the machine head 1 is prevented from entering the receiving well with water, and the blockage is caused to the receiving work of equipment such as a pipe jacking machine in the receiving well.
In the present embodiment, the oil nozzles 21 are a plurality of nozzles evenly distributed along the circumferential direction of the machine body 2. A plurality of oil injection nozzles 21 are arranged along the circumferential direction of the machine body 2, on one hand, because the plurality of oil injection nozzles 21 simultaneously inject grease to the outer wall of the machine body 2, the efficiency of oil injection can be accelerated, and the efficiency of pipe jacking construction is improved; on the other hand, the plurality of oil injection nozzles 21 are uniformly distributed on the machine body 2 in the circumferential direction, so that the oil injected from the oil injection pipe is more uniformly distributed on the outer wall of the machine body 2 through the oil injected from the plurality of oil injection nozzles 21, and therefore, the closed oil circuit formed by the two adjacent shield tail brush devices 3 and the oil between the two adjacent shield tail brush devices is better in sealing effect on slurry and water.
In this embodiment, the shield tail brush device 3 includes a first protection plate 31, a second protection plate 33 and a steel wire 32, the first protection plate 31, the second protection plate 33 and the steel wire 32 are enclosed around the outer surface of the body 2, the steel wire 32 is disposed between the first protection plate 31 and the second protection plate 33, and the first protection plate 31 and the second protection plate 33 are made of flexible materials. The shield tail brush device 3 comprises a first protection plate 31, a second protection plate 33 and a steel wire bundle 32, wherein the steel wire bundle 32 is arranged between the first protection plate 31 and the second protection plate 33, and the first protection plate 31, the second protection plate 33 and the steel wire bundle 32 form a three-layer structure and are encircled on the outer surface of the machine body 2. Because the steel wire bundle 32 has a certain deformability, the first protection plate 31 and the second protection plate 33 are made of a flexible material, so that when the shield tail brush device 3 composed of the first protection plate 31, the steel wire bundle 32 and the second protection plate 33 is abutted against the inner wall of the passage formed in the machine head 1, a large friction force is not generated, and the advancing of the pipe jacking machine in the soil layer is not greatly hindered.
The reason why the first protection plate 31 and the second protection plate 33 are respectively wrapped on both sides of the steel wire bundle 32 is also because the steel wire bundle 32 has a certain deformation capability and does not automatically recover after being deformed. If the shield tail brush device 3 only consists of the steel wire bundle 32, when the shield tail brush device passes through a rugged channel, the steel wire bundle 32 which is encircled outside the machine body 2 is deformed at each position, so that the outer end of the steel wire bundle 32 is always kept in butt joint with the inner wall of the channel in the advancing process of the pipe jacking machine, and the good effect of preventing the slag return of the machine head 1 cannot be achieved. And the first protection plate 31 and the second protection plate 33 which are made of flexible materials are respectively wrapped on the two sides of the steel wire bundle 32, and the first protection plate 31 and the second protection plate 33 which are made of flexible materials have certain deformation capacity and can automatically recover the original state after being deformed. Therefore, when passing through the rugged passage, the first protection plate 31 and the second protection plate 33 are quickly restored after being deformed, and the steel wire bundle 32 is driven to be restored to a state of being abutted against the outer wall of the passage.
In the present embodiment, the bead bundle 32 is a multilayer provided between the first protective sheet 31 and the second protective sheet 33. The multi-layer steel wire bundle 32 is arranged between the first protection plate 31 and the second protection plate 33, so that the shield tail brush device 3 consisting of the first protection plate 31, the second protection plate 33 and the multi-layer steel wire bundle 32 can better prevent slag return of the machine head 1.
In the present embodiment, a fixing device 4 is further included for fixing the shield tail brush device 3 to the machine body 2 or detaching the shield tail brush device 3 from the machine body 2. In this application, the shield tail brush device 3 is fixed on the outer wall of the machine body 2 by the fixing device 4, so that when the machine head 1 and the machine body 2 advance in the soil layer, the shield tail brush device 3 can prevent the machine head 1 from returning slag. Meanwhile, the shield tail brush device 3 can be detached from the machine body 2 through the fixing device 4, and the shield tail brush device 3 is cleaned and replaced. Because the shield tail brush device 3 prevents that the aircraft nose 1 from returning the sediment, with the inner wall butt of passageway, the in-process that the push bench marchd in the soil layer, although shield tail brush device 3 adopts flexible material to make, its long-time friction with the passageway inner wall also can lead to shield tail brush device 3 to produce great wearing and tearing, thereby make and produce the gap between shield tail brush device 3 and the inner wall of passageway, make it can't play the better effect that prevents aircraft nose 1 from returning the sediment, consequently, the push bench uses after a period, need in time to change shield tail brush device 3.
And if shield tail brush device 3 and 2 formula structures as an organic whole of organism, then be not convenient for change shield tail brush device 3, great wearing and tearing appear when shield tail brush device 3, can't play when preventing that aircraft nose 1 from returning the effect of sediment, need change whole push bench, caused the very big waste of production material. Therefore, in this application, the shield tail brush device 3 and the machine body 2 are not of an integral structure, but the shield tail brush device 3 is fixed on the machine body 2 by the fixing device 4, and the shield tail brush device 3 can be detached from the machine body 2 through the fixing device 4, so that when the shield tail brush device 3 is worn greatly, only the shield tail brush device 3 is replaced, the production material is saved, and the practicability of the pipe jacking machine is higher. Therefore, in the application, the fixing device 4 is also convenient for the shield tail brush to be disassembled on the machine body 2, so that the efficiency of pipe jacking construction is accelerated.
In this embodiment, the first protection plate 31, the steel wire bundle 32 and the second protection plate 33 are fixed together, a plurality of sections of the first protection plate 31, the steel wire bundle 32 and the second protection plate 33 which are fixed together are spliced and enclosed on the outer surface of the machine body 2, the fixing device 4 comprises a fixing plate 34 which is arranged at the bottom of the first protection plate 31 and the second protection plate 33, and a bolt with one end penetrating through the fixing plate 34 and then screwed with the machine body 2. The first protection plate 31, the steel wire bundle 32 and the second protection plate 33 are connected to one end of the outer wall of the machine body 2 and fixed together, so that the shield tail brush device 3 is integrated, thereby facilitating the installation and the disassembly of the shield tail brush device 3 on the machine body 2. If the first protection plate 31, the steel wire bundle 32 and the second protection plate 33 are of a split structure, when the shield tail brush device 3 is mounted or dismounted on the machine body 2, the first protection plate 31, the steel wire bundle 32 and the second protection plate 33 need to be respectively sleeved on the outer side of the machine body 2, or the first protection plate 31, the steel wire bundle 32 and the second protection plate 33 sleeved on the outer side of the machine body 2 need to be respectively dismounted, so that the mounting and dismounting of the shield tail brush device 3 on the machine body 2 are complicated.
In the present application, the shield tail brush device 3 is composed of a plurality of sections of the first protection plate 31, the steel wire bundle 32 and the second protection plate 33 which are fixed together, and the plurality of sections of the first protection plate 31, the steel wire bundle 32 and the second protection plate 33 which are fixed together are exactly completely spliced in the circumferential direction on the machine body 2. In the in-service use, because the pipeline all is cylindrical, for the convenience pipeline jack-in, aircraft nose 1 and organism 2 are also cylindrical to make things convenient for the pipeline jack-in the cylindrical passageway that the pipe pushing jack was seted up. In order to enable the shield tail brush device 3 to play a role in preventing slag from returning to the machine head 1, the shield tail brush device 3 needs to be completely distributed on the outer side surface of the machine body 2 in the circumferential direction. However, since the diameter of the head 1 is larger than that of the body 2, after the assembly of the head 1 and the body 2 is completed, in order to detach the damaged shield tail brush device 3 from the body 2 or to mount the replaced shield tail brush device 3 on the body 2, the head 1 needs to be detached from the body 2 first, which results in a troublesome replacement of the shield tail brush device 3.
Therefore, in the present application, the shield tail brush device 3 is composed of a plurality of segments of the first protection plate 31, the steel wire bundle 32 and the second protection plate 33 which are fixed together, and when the shield tail brush device 3 is installed on the machine body 2, the plurality of segments of the first protection plate 31, the steel wire bundle 32 and the second protection plate 33 which are fixed together are fixed on the machine body 2 in sequence; when the shield tail brush device 3 is detached from the machine body 2, the first protection plate 31, the steel wire bundle 32 and the second protection plate 33 which are fixed together in multiple sections are detached from the machine body 2, so that the machine head 1 does not need to be detached, and the shield tail brush device 3 is more convenient and faster to mount and detach.
Fixing device 4 is including locating the fixed plate 34 of first protection shield 31 and second protection shield 33 bottom, be equipped with the through-hole on fixed plate 34, it sets up a plurality of screw holes to correspond on organism 2, the through-hole of fixed plate 34 is run through bolt one end, screw hole spiro union with correspond on organism 2, thereby first protection shield 31 together will fix, steel wire bundle 32 and second protection shield 33 are fixed on organism 2, fix the first protection shield 31 together with the multistage through the bolt in proper order, steel wire bundle 32 and second protection shield 33 are fixed on organism 2, thereby realize the installation of shield tail brush device 3 on organism 2. When the shield tail brush device 3 is detached from the machine body 2, the shield tail brush device can be realized by respectively unscrewing the bolts from the machine body 2.
The above-described aspects may be implemented individually or in various combinations, and such variations are within the scope of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a prevent push bench of sediment is returned to aircraft nose which characterized in that: comprises a machine head (1) for rotatably drilling a hole and a machine body (2) which is arranged at the tail part of the machine head (1) and is used for jacking and guiding a pipeline; aircraft nose (1) diameter is greater than organism (2) diameter, aircraft nose (1) top is equipped with rotatory blade disc (11) that are used for cutting the soil layer, be equipped with shield tail brush device (3) on organism (2), shield tail brush device (3) are used for right the sediment that returns that produces when aircraft nose (1) rotatory trompil blocks.
2. The push bench of claim 1, wherein said push bench is capable of preventing slag from returning to the head of the push bench, and further comprises: the shield tail brush device (3) is made of flexible materials, and the extension length of the shield tail brush device (3) on the machine body (2) exceeds the range of the machine head (1).
3. The push bench of claim 1, wherein said push bench is capable of preventing slag from returning to the head of the push bench, and further comprises: the shield tail brush devices (3) are arranged on the machine body (2) in a plurality.
4. The push bench of claim 1, wherein said push bench is capable of preventing slag from returning to the head of the push bench, and further comprises: and one end of the shield tail brush device (3) far away from the end connected with the machine body (2) inclines towards the direction of jacking the pipeline.
5. The push bench of claim 3 for preventing slag return of the head, wherein: still including locating adjacent two oiling mouth (21) between shield tail brush device (3), be equipped with the oiling pipe in organism (2), oiling mouth (21) will the oiling pipe with organism (2) outside intercommunication, be used for supplying grease blowout in the oiling pipe.
6. The push bench of claim 5, wherein said top bench is capable of preventing slag from returning to the head: the oil nozzles (21) are uniformly distributed along the circumferential direction of the machine body (2).
7. The push bench of claim 2, wherein said push bench is capable of preventing slag from returning to the head: the shield tail brush device (3) comprises a first protection plate (31), a second protection plate (33) and a steel wire bundle (32), wherein the first protection plate (31), the second protection plate (33) and the steel wire bundle (32) are encircled on the outer surface of the machine body (2), the steel wire bundle (32) is arranged between the first protection plate (31) and the second protection plate (33), and the first protection plate (31) and the second protection plate (33) are made of flexible materials.
8. The push bench of claim 7, wherein said top bench is capable of preventing slag from returning to the head: the wire bundle (32) is a multilayer provided between the first protective sheet (31) and the second protective sheet (33).
9. The push bench of claim 7, wherein said top bench is capable of preventing slag from returning to the head: the device also comprises a fixing device (4) for fixing the tail shield brush device (3) on the machine body (2) or detaching the tail shield brush device (3) from the machine body (2).
10. The push bench of claim 9 for preventing slag return at the head, wherein: the first protection plate (31), the steel wire bundle (32) and the second protection plate (33) are fixed together, a plurality of sections of the first protection plate (31), the steel wire bundle (32) and the second protection plate (33) which are fixed together are spliced and encircled on the outer surface of the machine body (2), the fixing device (4) comprises a fixing plate (34) arranged at the bottoms of the first protection plate (31) and the second protection plate (33), and a bolt with one end penetrating through the fixing plate (34) and then screwed with the machine body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123397306.XU CN216518002U (en) | 2021-12-31 | 2021-12-31 | Pipe jacking machine capable of preventing machine head from returning slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123397306.XU CN216518002U (en) | 2021-12-31 | 2021-12-31 | Pipe jacking machine capable of preventing machine head from returning slag |
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| Publication Number | Publication Date |
|---|---|
| CN216518002U true CN216518002U (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123397306.XU Active CN216518002U (en) | 2021-12-31 | 2021-12-31 | Pipe jacking machine capable of preventing machine head from returning slag |
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| CN (1) | CN216518002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4414533A1 (en) | 2023-02-13 | 2024-08-14 | Soletanche Freyssinet | Micro-tunnelling device comprising an annular joint for the separation of drilling and lubricating fluids |
-
2021
- 2021-12-31 CN CN202123397306.XU patent/CN216518002U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4414533A1 (en) | 2023-02-13 | 2024-08-14 | Soletanche Freyssinet | Micro-tunnelling device comprising an annular joint for the separation of drilling and lubricating fluids |
| FR3145769A1 (en) * | 2023-02-13 | 2024-08-16 | Soletanche Freyssinet | Micro-tunneling machine with an annular seal for the separation of drilling and lubricating fluids |
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