CN110173271B - Diameter-variable rectangular shield body of push bench - Google Patents
Diameter-variable rectangular shield body of push bench Download PDFInfo
- Publication number
- CN110173271B CN110173271B CN201910513650.9A CN201910513650A CN110173271B CN 110173271 B CN110173271 B CN 110173271B CN 201910513650 A CN201910513650 A CN 201910513650A CN 110173271 B CN110173271 B CN 110173271B
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- shield body
- shield
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- foundation
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 17
- 238000009412 basement excavation Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract description 12
- 239000003638 chemical reducing agent Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- E21D9/03—Driving non-circular tunnels
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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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
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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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
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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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
- E21D9/0874—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield with rotary drilling heads having variable diameter
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- 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 push bench, in particular to a variable-diameter rectangular push bench shield body. The shield body foundation modules are divided into peripheral shield body foundation modules and middle shield body foundation modules, and the peripheral shield body foundation modules and the middle shield body foundation modules are connected through modules to form the rectangular pipe jacking machine with the required size. The module adopts high strength bolted connection between the module, sets up whole circle sealing washer on the junction surface, and the effectual tunnel that needs excavation other cross-section sizes of having avoided then needs redesign to customize a new rectangle push bench shield body and leads to new equipment customization cycle long, and the expense is expensive to the problem that has caused construction cycle's extension and construction cost to improve.
Description
Technical Field
The invention relates to the technical field of push bench, in particular to a variable-diameter rectangular push bench shield body.
Background
At present, the pipe jacking machine technology has become a main construction method for constructing urban tunnels such as underground railways, telecommunication, electric power, water supply and drainage. However, the current rectangular tunnel section size lacks mandatory specifications, the tunnel section size of various requirements is more, and the single-size non-variable-diameter rectangular push bench can only excavate tunnels with fixed sizes. After a tunnel with a certain section size is excavated, the rectangular pipe jacking machine with the fixed size can not excavate tunnels with other section sizes, so that equipment is idle, and resources are wasted. If tunnels with other section sizes are required to be excavated, a new rectangular pipe jacking machine shield body is required to be redesigned and customized. However, the new equipment has long customization period and high cost, thereby prolonging the construction period and increasing the construction cost.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the variable-diameter rectangular pipe pushing jack shield body, which can be used for constructing tunnels with different interface sizes, so that the problems of long customization period and high construction cost caused by the need of customizing a new rectangular pipe pushing jack shield body again when excavating tunnels with other section sizes in the prior art are effectively avoided.
The technical scheme of the invention is as follows:
the utility model provides a rectangle push bench modularization blade disc of variable diameter, includes the complete rectangle blade disc base that is formed by two pairs of independent rectangle blade disc base module combination for it can realize the reducing based on four directions in tunnel about, all be provided with two blade disc mounting holes on each independent rectangle blade disc base module, two blade disc mounting holes are internal to stretch into the rear end axle that has the single connecting rod bent axle that drives the blade disc rotation, the front end axle of single connecting rod bent axle is installed on the speed reducer, and its speed reducer is installed with motor pivot again, makes the accessible motor transmit the speed reducer with power, thereby the rethread speed reducer transmits power to single connecting rod bent axle and drives the blade disc rotation; the rear end shaft of the single-connecting-rod crankshaft is sleeved with a layer of shell, the shell is fixedly arranged on the cutter head base module, the rear end shaft of the single-connecting-rod crankshaft is sleeved with a roller bearing, and the roller bearing is fixedly arranged in the shell sleeved with the rear end shaft.
Further, a thrust bearing is sleeved at one end, far away from the cutter head base module, of the rear end shaft of the single-connecting-rod crankshaft, and the thrust bearing is fixed in a shell sleeved at the periphery of the rear end shaft.
The front end shafts of the two single-connecting-rod crankshafts respectively inserted into the two cutter head mounting holes of the same cutter head base module penetrate through the same mounting sleeve, two through holes for the front end shafts to penetrate through are formed in the mounting sleeve, and roller bearings are mounted in the through holes, so that the roller bearings are sleeved on the front end shafts.
The front end shaft of the single connecting rod crankshaft is sleeved with a layer of shell, the shell sleeved on the front end shaft is fixedly arranged on the mounting sleeve, and a spacer ring, a thrust bearing and a roller bearing are sequentially sleeved from one end of the front end shaft close to the mounting sleeve to one end far from the mounting sleeve. The roller bearing arranged in the through hole of the mounting sleeve is separated from the thrust bearing sleeved on the front end shaft through the separating ring.
Further, for the purpose of being convenient for processing and easy dismounting the epaxial cover of front end is equipped with an end cover, passes through bolted connection between the casing of end cover and front end axle, and its end cover is close to the epaxial roller bearing of cover in front end and keeps away from the one end of installation cover, and its inside diameter of end cover is greater than the diameter of front end axle and is less than roller bearing's external diameter, has effectually prevented that roller bearing from appearing along the epaxial displacement of front end in front end on the axle length direction, and be provided with the oil filler point on the end cover.
Still further, the end cover is still installed to the one end that is kept away from the installation cover and is connected with the cover, and its speed reducer adapter sleeve passes through the bolt to be installed on the casing of speed reducer.
Preferably, the invention adopts four pairs of independent rectangular cutterhead base modules to be combined side by side to form a complete rectangular cutterhead base.
Furthermore, in order to facilitate the firmness of the whole device, connecting spokes are welded between the cutter head base modules.
Preferably, three connecting spokes are welded between the adjacent cutterhead base modules, and the connecting spokes are respectively positioned at two ends and the middle position between the two adjacent cutterhead base modules.
In order to facilitate the modular cutterhead of the variable-diameter rectangular pipe-jacking machine provided by the invention to be applied to the field of shield construction, the invention further provides a variable-diameter rectangular pipe-jacking machine shield body.
The utility model provides a rectangle push bench shield body of variable diameter, includes the complete shield body structure that is formed by two at least pairs of shield body basic module combination for it can realize the diameter variation in four directions about based on the tunnel through adjusting the installation clearance between the shield body basic module, shield body basic module divide into peripheral shield body basic module and middle shield body basic module, and peripheral shield body basic module includes two mutually perpendicular shield body basic panels of installation, and middle shield body basic module includes a shield body basic panel; the shield body foundation module is close to the drive mechanism mounting panel of cutter head one end be provided with perpendicular installation in shield body foundation panel, the last through-hole that is used for installing the installation cover that leads of drive mechanism mounting panel to be provided with the mount pad that is used for installing the motor in shield body foundation module's position department that is close to shield body foundation module middle part, and be provided with the hydro-cylinder mounting panel of rectifying in shield body foundation module's one end that keeps away from the cutter head, it is used for installing the hydro-cylinder to lead two through-holes on the hydro-cylinder mounting panel of rectifying, the one end that the cutter head was kept away from to shield body foundation module is reserved and is articulated the ring installation face.
Further, the transmission mechanism mounting plate of the peripheral shield body foundation module and the transmission mechanism mounting plate of the other shield body foundation module are both provided with an inward concave semicircular cambered surface and an inward concave quarter cambered surface on the surface contacted with each other, so that two inward concave semicircular cambered surfaces of the two shield body foundation modules are combined to form a complete manhole, the four quarter cambered surfaces of the four shield body foundation modules are assembled to form a complete screw hole, and the manhole is positioned on the central horizontal line of the height of the shield body after the assembly is completed, and the screw hole is positioned at one end close to the ground.
Further, a plurality of reinforcing rib plates are arranged between the transmission mechanism mounting plate and the mounting seat for mounting the motor, and a plurality of reinforcing rib plates are also arranged between the mounting seat for mounting the motor and the correction oil cylinder mounting plate.
Preferably, connecting plates are respectively arranged at the contact positions of the two adjacent shield body foundation modules, and the two connecting plates are connected through bolts so as to fix the two adjacent shield body foundation modules.
Furthermore, sealing rings are arranged on the contact surfaces of the connecting plates, which are contacted with the two adjacent shield body foundation modules.
Still further, under the stability of the shield body of the rectangular pipe jacking machine with variable diameter after the diameter is ensured, the rectangular pipe jacking machine with variable diameter further comprises a diameter changing module, wherein the diameter changing module is arranged between two adjacent shield body basic modules, two connecting plates are arranged on the diameter changing module and are respectively connected with the connecting plates of the shield body basic modules adjacent to the two ends of the diameter changing module through bolts, and a sealing ring is arranged on the connecting surface of the diameter changing module.
Still further, be provided with deep floor between two connecting plates of reducing module.
Still further, a shovel blade is arranged along the periphery of the shield body at one end of the complete shield body structure close to the excavation face.
Preferably, the invention is a complete shield structure formed by combining four pairs of shield basic modules,
the invention has the beneficial effects that: the cutter head base is divided into a plurality of modules, so that the cutter head can be expanded through the combination gaps among the modules, the cutter head is arranged on the transmission mechanism through the cutter head mounting holes arranged on the cutter head base module, so that variable diameter excavation of the cutter head is realized, the problem that the construction period is long and the construction cost is high due to the fact that the cutter head needs to be remanufactured when the tunnels with other sizes are excavated is avoided, and the invention also provides a variable diameter rectangular pipe jacking machine shield body which is matched with a variable diameter rectangular pipe jacking machine modularized cutter head, so that the variable diameter cutter head can be directly assembled on the variable diameter rectangular pipe jacking machine shield body for use, and the problems that the variable diameter excavation cannot be realized, the rectangular pipe jacking machine which is matched with the tunnel size is required to be remanufactured when the tunnels with different sizes are excavated in the prior art, and the construction cost and the construction period is long are avoided.
Drawings
FIG. 1 is a schematic diagram of the mounting relationship between a single cutterhead base module and a drive of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the driving device according to the present invention;
FIG. 3 is a schematic view of a complete cutterhead base of the present invention;
FIG. 4 is a schematic view of a complete cutterhead base after expanding in accordance with the present invention;
FIG. 5 is a schematic view of the internal structure of the push bench according to the present invention;
FIG. 6 is a schematic view of a peripheral shield base module according to the present invention;
FIG. 7 is a schematic diagram of an intermediate shield base module according to the present invention;
FIG. 8 is a schematic diagram of a reducing module according to the present invention;
FIG. 9 is a schematic view of a complete shield according to the present invention;
FIG. 10 is a schematic view of the expanded shield body of the present invention;
reference numerals illustrate: 101. a cutterhead base module 101;102. a single connecting rod crankshaft; 103. a mounting sleeve; 104. a speed reducer; 105. a motor; 106. a rear end shaft; 107. a housing; 108. a roller bearing; 109. a thrust bearing; 110. a front end shaft; 111. a spacer ring; 112. a speed reducer connecting sleeve; 113. an end cap; 114. connecting spokes; 201. a peripheral shield body foundation module; 202. a connecting plate; 203. a deviation rectifying oil cylinder; 204. a hinge ring mounting surface; 205. a screw hole; 206. the deviation correcting oil cylinder mounting plate; 207. a mounting base; 208. reinforcing rib plates; 209. a concave semicircular cambered surface; 210. a concave quarter arc surface; 211. a shield body foundation panel; 212. a reducing module; 213. a middle shield body foundation module; 214. a manhole; 215. a transmission mechanism mounting plate; 216. a shovel blade.
Detailed Description
The invention is further described below with reference to the drawings.
Referring to fig. 1 to 4, a modular cutterhead of a rectangular pipe jacking machine with variable diameter of the present invention is described in detail, and the modular cutterhead of a rectangular pipe jacking machine with variable diameter comprises a complete rectangular cutterhead base formed by combining at least two pairs of independent rectangular cutterhead base modules 101, so that the modular cutterhead base can realize variable diameter in four directions of up, down, left and right based on a tunnel, each independent rectangular cutterhead base module 101 is provided with two cutterhead mounting holes, the two cutterhead mounting holes are internally provided with rear end shafts 106 of single-link crankshafts 102 for driving the cutterhead to rotate, front end shafts 110 of the single-link crankshafts 102 are mounted on a speed reducer 104, and the speed reducer 104 is mounted with a rotating shaft of a motor 105, so that power can be transmitted to the speed reducer 104 through the motor 105, and then the power is transmitted to the single-link crankshafts 102 through the speed reducer 104, so as to drive the cutterhead to rotate; the rear end shaft 106 of the single-link crankshaft 102 is sleeved with a layer of shell 107, the shell 107 is fixedly arranged on the cutterhead base module 101, the rear end shaft 106 of the single-link crankshaft 102 is sleeved with a roller bearing 108, and the roller bearing 108 is fixedly arranged in the shell 107 sleeved with the rear end shaft 106.
Further, a thrust bearing 109 is sleeved at the end of the rear end shaft 106 of the single-connecting-rod crankshaft 102, which is far away from the cutterhead base module 101, and the thrust bearing 109 is fixed in a shell 107 sleeved at the periphery of the rear end shaft 106.
The front end shafts 110 of the two single-link crankshafts 102 respectively inserted into the two cutter head mounting holes of the same cutter head base module 101 pass through the same mounting sleeve 103, two through holes for the front end shafts 110 to pass through are arranged on the mounting sleeve 103, and roller bearings 108 are arranged in the through holes, so that the roller bearings 108 are sleeved on the front end shafts 110.
A layer of shell 107 is sleeved on the front end shaft 110 of the single connecting rod crankshaft 102, the shell 107 sleeved on the front end shaft 110 is fixedly arranged on the mounting sleeve 103, and a spacer ring 111, a thrust bearing 109 and a roller bearing 108 are sequentially sleeved from one end of the front end shaft 110, which is close to the mounting sleeve 103, to one end, which is far away from the mounting sleeve 103. The roller bearing 108 mounted in the through hole of the mounting sleeve 103 is separated from the thrust bearing sleeved on the front end shaft 110 by a spacer ring 111.
Further, for the purpose of being convenient for processing and easy dismounting cover is equipped with an end cover 113 on the front end axle 110, through bolted connection between end cover 113 and the casing 107 of front end axle 110, its end cover 113 is close to the one end that the roller bearing 108 of cover on front end axle 110 kept away from the installation cover 103, and its inside diameter of end cover 113 is greater than the diameter of front end axle 110 and is less than the external diameter of roller bearing 108, has effectually prevented that roller bearing 108 from appearing along the displacement of front end axle 110 length direction on front end axle 110 to be provided with the oil filler point on the end cover 113.
Still further, a speed reducer connecting sleeve 112 is further mounted at one end of the end cover 113 away from the mounting sleeve 103, and the speed reducer connecting sleeve 112 is mounted on the housing 107 of the speed reducer 104 through bolts.
Preferably, the present invention employs four pairs of individual rectangular cutterhead base modules 101 assembled side-by-side into a complete rectangular cutterhead base.
Further, to facilitate the overall device of the present invention being more robust, spokes 114 are welded between each cutterhead base module 101.
Preferably, three connecting spokes 114 are welded between the adjacent cutterhead base modules 101, and are respectively located at two ends and a middle position between two adjacent cutterhead base modules 101.
A preferred embodiment of the present invention will be described in detail with reference to fig. 3.
As shown in fig. 3, the present invention adopts four pairs of independent rectangular cutterhead base modules 101 to assemble a complete rectangular cutterhead base, wherein the four pairs of independent rectangular cutterhead base modules 101 are arranged in pairs up and down based on the height of a tunnel when assembled, each pair of rectangular cutterhead base modules 101 is arranged side by side, each rectangular cutterhead base module 101 is provided with two cutterhead mounting holes, and only a cross cutterhead, a star cutterhead or other cutterhead in the prior art is required to be reduced by a certain proportion or manufactured and then is independently mounted in each cutterhead mounting hole, and the clearance of each rectangular cutterhead base module 101 during assembly is adjusted and connected through a connecting spoke 114, so that the diameter of the cutterhead base is changed, and the excavation diameter of the cutterhead mounted on the cutterhead base module 101 is increased, and the diameter of the cutterhead is changed.
In order to facilitate the modular cutterhead of the variable-diameter rectangular pipe-jacking machine provided by the invention to be applied to the field of shield construction, the invention further provides a variable-diameter rectangular pipe-jacking machine shield body.
Referring to fig. 1 to 10, a variable diameter rectangular push bench shield according to the present invention is described in detail, and includes a complete shield structure formed by combining at least two pairs of shield foundation modules, so that it can realize a diameter variation in four directions based on a tunnel by adjusting an installation gap between the shield foundation modules, the shield foundation modules are divided into a peripheral shield foundation module 201 and an intermediate shield foundation module 213, the peripheral shield foundation module 201 includes two shield foundation panels 211 installed vertically to each other, and the intermediate shield foundation module 213 includes one shield foundation panel 211; the one end that shield body basic module is close to the blade disc is provided with the drive mechanism mounting panel 215 of perpendicular installation in shield body basic panel 211, drive mechanism mounting panel 215 goes up to lead to have the through-hole that is used for installing the installation cover 103 to be provided with the mount pad 207 that is used for installing motor 105 in the position department that shield body basic module is close to shield body basic module middle part, and be provided with the hydro-cylinder mounting panel 206 of rectifying in the one end that shield body basic module kept away from the blade disc, the last through-hole that is used for installing the hydro-cylinder 203 of rectifying of leading of hydro-cylinder mounting panel 206, the articulated ring installation face 204 has been reserved to the one end that shield body basic module kept away from the blade disc.
Further, the surfaces of the transmission mechanism mounting plates 215 of the peripheral shield foundation modules 201, which are in contact with the transmission mechanism mounting plates 215 of the other shield foundation modules, are respectively provided with an inward concave semicircular arc surface 209 and an inward concave quarter arc surface 210, so that when the two shield foundation modules are combined, the two inward concave semicircular arc surfaces 209 form a complete manhole 214, after the four shield foundation modules are assembled, the four inward concave quarter arc surfaces 210 form a complete screw hole 205, and after the assembly is completed, the manhole 214 is positioned on the central horizontal line of the height of the shield body, and the screw hole 205 is positioned at one end close to the ground.
Further, a plurality of reinforcing ribs 208 are provided between the transmission mounting plate 215 and the mount base 207 for mounting the motor 105.
Preferably, connecting plates 202 are respectively arranged at the contact positions of two adjacent shield body foundation modules, and the two connecting plates 202 are connected through bolts so as to fix the two adjacent shield body foundation modules.
Further, sealing rings are disposed on the contact surfaces of the connecting plates 202 where the two adjacent shield body foundation modules contact.
Still further, under the condition of ensuring the stability of the shield body of the rectangular pipe jacking machine with variable diameter after diameter change, the rectangular pipe jacking machine with variable diameter further comprises a diameter changing module 212, wherein the diameter changing module 212 is arranged between two adjacent shield body basic modules, two connecting plates 202 are arranged on the diameter changing module 212 and are respectively connected with the connecting plates 202 of the shield body basic modules adjacent to two ends of the diameter changing module 212 through bolts, and sealing rings are arranged on the connecting surfaces of the connecting plates.
Still further, a reinforcing rib plate 208 is disposed between the two connection plates 202 of the reducing module 212.
Still further, a shovel blade 216 is disposed along the perimeter of the shield body at an end of the complete shield body structure proximate the excavation face.
The following describes in detail a preferred embodiment of a variable diameter rectangular push bench shield according to the present invention with reference to fig. 9 and 10.
The invention adopts four pairs of shield foundation modules to assemble a complete rectangular pipe jacking machine shield body, adopts two pairs of peripheral shield foundation modules 201 and two pairs of middle shield foundation modules 213 to assemble a complete rectangular pipe jacking machine shield body, and concretely, the shield foundation modules are arranged side by side in a pair up and down based on the height of a tunnel, two pairs of middle shield foundation modules 213 are arranged between the two pairs of peripheral shield foundation modules 201, and each shield foundation module is fixedly connected through bolts, so that a complete rectangular pipe jacking machine shield body is formed, and only the gap between each shield foundation module is required to be adjusted during diameter changing, and then a diameter changing module 212 is arranged between the two shield foundation modules, so that the diameter changing of the rectangular pipe jacking machine shield body can be realized.
The rectangular push bench according to the present invention will be described in detail with reference to fig. 1 to 10, wherein a rectangular push bench with variable diameter includes a rectangular push bench modular cutterhead with variable diameter mounted on a rectangular push bench shield with variable diameter, the motor mounted on the rectangular push bench modular cutterhead with variable diameter is mounted on a mounting base 207 of the rectangular push bench shield with variable diameter, and the mounting sleeve 103 is mounted and fixed on a transmission mechanism mounting plate 215, and the cutterhead base modules 101 and the shield base modules are assembled and combined to form the rectangular push bench with variable diameter.
Claims (6)
1. The utility model provides a rectangular push bench shield body of variable diameter, its characterized in that includes the complete shield body structure that is formed by the combination of at least two pairs of shield body basic module, makes it can realize the diameter variation in four directions about based on the tunnel through adjusting the installation clearance between the shield body basic module, shield body basic module divide into peripheral shield body basic module (201) and middle shield body basic module (213), and peripheral shield body basic module (201) include two shield body basic panels (211) of mutually perpendicular installation, and middle shield body basic module (213) include a shield body basic panel (211); a transmission mechanism mounting plate (215) vertically mounted on a shield body foundation panel (211) is arranged at one end of the shield body foundation module, which is close to the cutterhead, a through hole for mounting a mounting sleeve (103) is guided on the transmission mechanism mounting plate (215), a mounting seat (207) for mounting a motor (105) is arranged at the position of the shield body foundation module, which is close to the middle part of the shield body foundation module, and a deviation rectifying cylinder mounting plate (206) is arranged at one end of the shield body foundation module, which is far away from the cutterhead, a through hole for mounting a deviation rectifying cylinder (203) is guided on the deviation rectifying cylinder mounting plate (206), and a hinged ring mounting surface (204) is reserved at one end of the shield body foundation module, which is far away from the cutterhead;
the transmission mechanism mounting plates (215) of the peripheral shield foundation modules (201) are provided with concave semicircular cambered surfaces (209) and concave quarter cambered surfaces (210) on the surfaces, which are contacted with the transmission mechanism mounting plates (215) of the other shield foundation modules, so that when the two shield foundation modules are combined, the two concave semicircular cambered surfaces (209) form a complete manhole (214), after the four shield foundation modules are assembled, the four concave quarter cambered surfaces (210) form a complete screw hole (205), and after the assembly is completed, the manhole (214) is positioned on the central horizontal line of the height of the shield, and the screw hole (205) is positioned at one end close to the ground;
four pairs of shield body foundation modules are adopted to assemble a complete rectangular pipe jacking machine shield body, two pairs of peripheral shield body foundation modules (201) and two pairs of middle shield body foundation modules (213) are adopted to assemble a complete rectangular pipe jacking machine shield body, the number of the shield body foundation modules is one based on the height of a tunnel, each pair of shield body modules is arranged side by side, two pairs of middle shield body foundation modules (213) are arranged between the two pairs of peripheral shield body foundation modules (201), and each shield body foundation module is fixedly connected through bolts;
the rectangular pipe pushing jack shield body further comprises a reducing module (212), the reducing module (212) is arranged between two adjacent shield body foundation modules, two connecting plates (202) are arranged on the reducing module (212) and are respectively connected with the connecting plates (202) of the shield body foundation modules adjacent to the two ends of the reducing module (212) through bolts, and sealing rings are arranged on the connecting surfaces of the connecting plates.
2. A variable diameter rectangular push bench shield according to claim 1, characterized in that a plurality of reinforcing ribs (208) are provided between the transmission mounting plate (215) and the mounting base (207) for mounting the motor (105).
3. The variable-diameter rectangular pipe jacking machine shield body according to claim 1, wherein connecting plates (202) are respectively arranged at the contact positions of two adjacent shield body basic modules, and the two connecting plates (202) are connected through bolts so as to fix the two adjacent shield body basic modules.
4. A variable diameter rectangular push bench shield according to claim 3, wherein sealing rings are arranged on the contact surfaces of the connecting plates (202) which are contacted with the adjacent basic modules of the shield.
5. A variable diameter rectangular push bench shield according to claim 1, wherein a blade (216) is disposed along the periphery of the shield at the end of the complete shield structure adjacent the excavation face.
6. The variable-diameter rectangular pipe jacking machine shield according to claim 1, wherein a reinforcing rib plate (208) is arranged between two connecting plates (202) of the variable-diameter module (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910513650.9A CN110173271B (en) | 2019-06-14 | 2019-06-14 | Diameter-variable rectangular shield body of push bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910513650.9A CN110173271B (en) | 2019-06-14 | 2019-06-14 | Diameter-variable rectangular shield body of push bench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110173271A CN110173271A (en) | 2019-08-27 |
| CN110173271B true CN110173271B (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910513650.9A Active CN110173271B (en) | 2019-06-14 | 2019-06-14 | Diameter-variable rectangular shield body of push bench |
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| Country | Link |
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| CN (1) | CN110173271B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593955B (en) * | 2021-03-03 | 2021-05-28 | 中国铁建重工集团股份有限公司 | Variable cross-section push bench |
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|---|---|
| CN110173271A (en) | 2019-08-27 |
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