CN112253222A - Pipe jacking tunneling equipment for roadway rescue - Google Patents

Pipe jacking tunneling equipment for roadway rescue Download PDF

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Publication number
CN112253222A
CN112253222A CN202010875447.9A CN202010875447A CN112253222A CN 112253222 A CN112253222 A CN 112253222A CN 202010875447 A CN202010875447 A CN 202010875447A CN 112253222 A CN112253222 A CN 112253222A
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CN
China
Prior art keywords
cutter
splitting
pipe
cutter head
inner ring
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Granted
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CN202010875447.9A
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Chinese (zh)
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CN112253222B (en
Inventor
王雷
李梁
王冠雄
刘佳
陈旭
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CCTEG China Coal Technology and Engineering Group Corp
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CCTEG China Coal Technology and Engineering Group Corp
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Priority to CN202010875447.9A priority Critical patent/CN112253222B/en
Publication of CN112253222A publication Critical patent/CN112253222A/en
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Publication of CN112253222B publication Critical patent/CN112253222B/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F11/00Rescue devices or other safety devices, e.g. safety chambers or escape ways
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10Making by using boring or cutting machines
    • E21D9/1006Making by using boring or cutting machines with rotary cutting tools
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/12Devices for removing or hauling away excavated material or spoil; Working or loading platforms
    • E21D9/124Helical conveying means therefor
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00Methods or devices for use in mines or tunnels, not covered elsewhere

Abstract

The invention belongs to collapse roadway rescue equipment, in particular to jacking pipe tunneling equipment for roadway rescue, wherein an inner ring is inserted in the central part of a front shell, a bearing is arranged between the inner ring and the front shell, a large gear is fixedly connected to the rear end surface of the inner ring, a pinion, a reducer and a hydraulic motor are circumferentially distributed at the outer ring of the large gear, the power end of the hydraulic motor is connected with the input end of a reducing motor, and the output end of the reducing motor is connected with the pinion; the cutter head is arranged at the front end of the inner ring, the inner spiral deslagging pipe is fixedly arranged on the inner ring surface of the inner ring, a hollowed deslagging port is arranged on the cutter head, and the deslagging port is communicated with the inner spiral deslagging pipe through a cavity in the cutter head; the inner spiral slag discharging pipe is internally provided with a hollow spiral blade at the tail part of the inner spiral slag discharging pipe for transferring slag soil, and the scraper conveyor is arranged at the tail end of the inner spiral slag discharging pipe. The tunneling equipment can solve the problems that in the prior art, the tunneling speed of a collapsed roadway is low, the large-particle-size boulder crushing efficiency is low, and a cutting cavity cannot enter people.

Description

Pipe jacking tunneling equipment for roadway rescue
Technical Field
The invention belongs to collapse roadway rescue equipment, and particularly relates to jacking pipe tunneling equipment for roadway rescue.
Background
At present, two main methods for rescuing the underground collapsed roadway of the coal mine in China are provided: the two tunneling methods have limitations, the tunneling speed is low, and the safety of constructors cannot be guaranteed.
The patent CN202266293 develops a tunnel collapse life-saving machine to rescue trapped people, the method adopts a multilayer sleeve mode, the process is more complicated because the method designs the jacking of multiple sleeves, the unearthing is not synchronous with the jacking pipe, the slag can be discharged when the jacking pipe is pushed in for 2m, the slag is discharged manually by soil bodies, and the speed is slower. Patent "CN 207212342U" has introduced a novel pipe push bench of being applied to cobble structure, and it is rotatory to drive spiral unearthing machine and shell through driving motor, and a complete equipment is fixed, runs into front end emergency, and personnel can not enter into the inside of aircraft nose and accomplish emergency's processing, and simultaneously, the blade disc adopts ordinary hobbing cutter to break the rock, and the rock stability of the rock mass that collapses is relatively poor, can not provide effectual cutting effort to be not applicable to the tunnel rescue that collapses. The CN105156117A introduces a tunnel rescue push bench, the patent adopts an open push bench technology, has no special rock breaking and cutting cutterhead, and can not be used for construction in a collapse rock roadway. "CN 201410661849.3" has introduced a tunnel and has closed the door collapse quick rescue method, and this patent adopts the screw transport sediment method, excavates the soil body that collapses through the blade disc, however, the blade disc does not have the ability of breaking rock, only is applicable to the soft soil rescue, simultaneously, the pipe diameter is less, and inside has screw conveyor, and when the front end met emergency, the rescue personnel can not in time get into the blade disc department and intervene, and it is weaker to handle the emergency.
Disclosure of Invention
In order to solve the problems, the pipe jacking tunneling equipment for tunnel rescue provided by the invention can solve the problems that the tunneling speed of a collapsed tunnel is slow, the crushing efficiency of large-particle-size boulders is low, and people cannot enter a cutting cavity in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
a jacking pipe tunneling device for roadway rescue comprises a hobbing cutter, a cutter head, a front shell, a bearing, a pinion, a gearwheel, a reducer, a hydraulic motor, an internal spiral deslagging pipe, an inner ring and a scraper conveyor, wherein the front shell is of a double-layer concentric cylindrical structure, the inner ring is inserted in the center of the front shell, the bearing is installed between the inner ring and the front shell, the gearwheel is fixedly connected to the rear end face of the inner ring, the outer ring face of the gearwheel is provided with transmission teeth, the pinion, the reducer and the hydraulic motor are provided with multiple groups, and the multiple groups of the pinion, the reducer and the hydraulic motor are circumferentially distributed at the outer ring of the gearwheel, wherein the power end of the hydraulic motor is connected with the input end of a reduction motor, the output end of the reduction motor is connected with the pinion, the outer;
the cutter head is arranged at the front end of the inner ring, the hob is arranged on the front end surface of the cutter head, the inner spiral deslagging pipe is fixedly arranged on the inner ring surface of the inner ring, the cutter head is provided with a hollowed deslagging port, and the deslagging port is communicated with the inner spiral deslagging pipe through an inner cavity of the cutter head; the inner spiral slag discharging pipe is internally provided with a hollow spiral blade at the tail part of the inner spiral slag discharging pipe for transferring slag soil, and the scraper conveyor is arranged at the tail end of the inner spiral slag discharging pipe.
Preferably, a horn-shaped rotary connecting wall is arranged between the front end and the rear end of the cutter head, the front end of the rotary connecting wall is an open end, and the front end of the rotary connecting wall is in butt joint with the hob; the diameter of the rear end of the rotary connecting wall is smaller than that of the front end, and the rear end of the rotary connecting wall is in butt joint with the front end of the inner spiral slag discharge pipe.
Preferably, the rear shell is mounted at the tail part of the front shell, the cutter disc, the outer annular surfaces of the front shell and the rear shell form a cylindrical structure, and the pinion, the gearwheel, the speed reducer and the hydraulic motor are arranged in the rear shell.
Preferably, the hob comprises splitting cutters, a slag inlet and a cutter head panel, wherein the cutter head panel is a symmetrical multi-strip-shaped flat plate, the slag inlet is formed between every two adjacent banners, and the front side surface of each banner is provided with a cutting cutter.
Preferably, the front side surface of the cutterhead panel is also provided with a plurality of splitting knives for rapid crushing of large-size crushed stones.
Preferably, the splitting knife comprises a splitting knife rest, a splitting knife cutter and a connecting screw, wherein the splitting knife rest is a plate-shaped enclosing structure with a rectangular cross section, the splitting knife cutter is of a toothed structure, the cross section area of the tooth root of the splitting knife cutter is larger than that of the tooth top, the tooth root of the splitting knife cutter is inserted into the splitting knife rest, and the splitting knife rest and the splitting knife cutter are connected through the connecting screw.
Preferably, the cross section area of the tooth root of the splitting knife cutter is smaller than that of the area of the cross section of the surrounding area of the splitting knife rest, the splitting knife rest and the splitting knife cutter are hinged through a connecting screw, and the splitting knife cutter can swing by taking the connecting screw as a rotation center.
Preferably, the top surface of the splitting knife cutter is a plane.
Preferably, the top surface of the splitting knife cutter is provided with a plurality of grooves, the depth extending direction of the grooves is towards the tooth root direction, and the width extending direction of the grooves is parallel to the connecting screw.
Preferably, the front side surface of the cutterhead panel is taken as a reference surface, and the height of the splitting cutter is greater than that of the cutting cutter; the splitting knives are circumferentially distributed on the front face of the cutter head panel.
The beneficial effects of the invention are as follows:
the tunneling equipment is driven by a hydraulic motor to drive the cutter head to rotate through a plurality of transmission assemblies, the cutting and disturbance of the collapsed rock body are completed, meanwhile, the driving system can also drive the inner spiral slag discharging pipe to rotate, the spiral blades in the inner spiral slag discharging pipe convey large-particle-size rocks cut by the cutter head to the outside, and the rocks conveyed by the spiral conveyor are conveyed out through the scraper conveyor.
The splitting cutter on the cutter head repeatedly hammers the broken stones with large particle sizes to realize quick crushing of the broken stones with large particle sizes, and the rocks are crushed through repeated hammering.
The center of the tunneling equipment is in an open state and is provided with a complete rescue channel, and workers can enter the interior of the machine head through the inner space of the inner spiral slag discharge pipe to complete the treatment of emergency.
Drawings
Fig. 1 is a schematic structural view of the pipe jacking tunneling equipment for roadway rescue according to the present invention.
Fig. 2 is a schematic structural view of a cutter head in the pipe-jacking tunneling equipment for roadway rescue according to the present invention.
FIG. 3 is a schematic structural view of a bull gear in the pipe jacking tunneling equipment for roadway rescue according to the present invention
Fig. 4 is a schematic view of a splitting cutter assembly body in the pipe jacking tunneling equipment for roadway rescue according to the present invention.
The reference numerals include:
1-hob, 2-cutterhead, 3-front shell, 4-bearing, 5-pinion, 6-bull gear, 7-reducer, 8-hydraulic motor, 9-internal spiral deslagging pipe, 10-rear shell, 11-inner ring, 12-cutterhead mounting plate, 13-splitting cutter, 14-slag inlet, 15-cutterhead panel, 16-bull gear mounting plate, 17-scraper conveyor, 18-splitting cutter rest, 19-splitting cutter, 20-connecting screw, 21-hollow spiral blade, and 22-deslagging pipe mounting plate.
Detailed Description
In order to make the purpose, technical solution and advantages of the present technical solution more clear, the present technical solution is further described in detail below with reference to specific embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present teachings.
As shown in fig. 1-4, the pipe-jacking tunneling equipment for roadway rescue in the present embodiment includes a hob 1, a cutterhead 2, a front housing 3, a bearing 4, a pinion 5, a gearwheel 6, a reducer 7, a hydraulic motor 8, an internal spiral deslagging pipe 9, an inner ring 11 and a scraper conveyor 17, wherein the front housing 3 is a double-layer concentric cylindrical structure, the inner ring 11 is inserted into the center of the front housing 3, the bearing 4 is installed between the inner ring 11 and the front housing 3, the gearwheel 6 is fixedly connected to the rear end face of the inner ring 11, the outer annular face of the gearwheel 6 has transmission teeth, there are multiple sets of the pinion 5, the reducer 7 and the hydraulic motor 8, the multiple sets of the pinion 5, the reducer 7 and the hydraulic motor 8 are circumferentially distributed at the outer ring of the gearwheel 6, wherein the power end of the hydraulic motor 8 is connected to the input end of a reduction motor, the output end, the small gear 5 and the big gear 6 are meshed with each other through transmission teeth;
the cutter head 2 is arranged at the front end of the inner ring 11, the hob 1 is arranged on the front end surface of the cutter head 2, the inner spiral deslagging pipe 9 is fixedly arranged on the inner ring surface of the inner ring 11, the cutter head 2 is provided with a hollowed deslagging port 14, and the deslagging port 14 is communicated with the inner spiral deslagging pipe 9 through a cavity in the cutter head 2 of the cutter head 2; the inner spiral slag discharging pipe 9 is internally provided with a hollow spiral blade 21 at the tail part of the inner spiral slag discharging pipe 9 for transferring slag soil, and the scraper conveyor 17 is arranged at the tail end of the inner spiral slag discharging pipe 9.
A horn-shaped rotary connecting wall is arranged between the front end and the rear end of the cutter head 2, the front end of the rotary connecting wall is an open end, and the front end of the rotary connecting wall is butted with the hob 1; the diameter of the rear end of the rotary connecting wall is smaller than that of the front end, and the rear end of the rotary connecting wall is butted with the front end of the inner spiral slag discharge pipe 9.
The rear shell 10 is installed at the tail part of the front shell 3, the cutter head 2, the front shell 3 and the outer annular surface of the rear shell 10 form a cylindrical structure, and the pinion 5, the large gear 6, the reducer 7 and the hydraulic motor 8 are arranged in the rear shell 10.
The hob 1 comprises splitting cutters 13, a slag inlet 14 and a cutterhead panel 15, wherein the cutterhead panel 15 is a symmetrical multi-strip-shaped flat plate, the slag inlet 14 is formed between every two adjacent strips, and the front side surface of each strip is provided with a cutting cutter.
The front side surface of the cutterhead panel 15 is also provided with a plurality of splitting knives 13 for rapid breaking of large-sized crushed stones.
The splitting knife 13 comprises a splitting knife rest 18, a splitting knife cutter 19 and a connecting screw 20, wherein the splitting knife rest 18 is of a plate-shaped enclosing structure with a rectangular cross section, the splitting knife cutter 19 is of a toothed structure, the cross section area of the tooth root of the splitting knife cutter 19 is larger than that of the tooth top, the tooth root of the splitting knife cutter 19 is inserted into the splitting knife rest 18, and the splitting knife rest 18 and the splitting knife cutter 19 are connected through the connecting screw 20.
The cross section area of the tooth root of the splitting knife cutter 19 is smaller than that of the surrounding area of the splitting knife cutter holder 18, the splitting knife cutter holder 18 and the splitting knife cutter 19 are hinged through a connecting screw 20, and the splitting knife cutter 19 can swing by taking the connecting screw 20 as a rotating center.
The top surface of the splitting cutter 19 is a plane.
The top surface of the splitting knife 19 is provided with a plurality of grooves, the depth extension direction of the grooves is towards the tooth root direction, and the width extension direction of the grooves is parallel to the connecting screw 20.
The front side surface of the cutter head panel 15 is taken as a reference surface, and the height of the splitting cutter 13 is greater than that of the cutting cutter; a plurality of splitting knives 13 are distributed circumferentially on the front face of the cutterhead panel 15.
Specifically, the hydraulic motor 8 and the speed reducer 7 are circumferentially distributed in the pipe body, and a plurality of sets of driving devices can be distributed according to different cutting torques of the cutter head 2, so that the cutter head 2 is driven. Drive reduction gear 7 through hydraulic motor 8 and rotate, reduction gear 7 output shaft and pinion 5 link to each other, pinion 5 drives gear wheel 6 and rotates, gear wheel 6 drives interior spiral scum pipe 9 and inner circle 11 rotation, inner circle 11 drives blade disc mounting panel 12 and blade disc 2 rotation, the completion is to the cutting and the disturbance of the rock mass that collapses, and simultaneously, actuating system can also drive interior spiral scum pipe 9 and rotate, the inside helical blade of interior spiral scum pipe 9 carries the outside with the big particle diameter rock of blade disc 2 cutting, carry out the rock that screw conveyer carried through scraping the trigger. In this embodiment, a large gear mounting plate 16 is disposed at an end of an inner annular surface of the large gear 6, a screw hole is disposed on the large gear 6 mounting plate, and the large gear 6 is fixed to a tail end of the inner ring 11 through the large gear mounting plate and a screw. The front section of the inner spiral slag discharging pipe 9 is provided with a slag discharging pipe mounting plate 22, and the inner spiral slag discharging pipe 9 is fixed at the opening at the rear end of the cutter head 2 through the slag discharging pipe mounting plate 22 and screws.
Because the rock mass that collapses has the unstability, when hobbing cutter 1 acted on the pebble, the pebble easily taken place to remove, hobbing cutter 1 can't form the effect of impressing to the pebble promptly, and the initiation area can't form, and in addition at the shield tunnelling in-process, big particle diameter boulder can move along with the rotation of blade disc 2, very easily causes hobbing cutter 1 eccentric wear, therefore the efficiency of rock breaking is extremely low, only relies on hobbing cutter 1 cutting rock breaking effect unsatisfactory. Therefore, a hob 1 and a splitting cutter 13 combined cutting principle is adopted for a cutter head 2 structure of a collapsed rock body, the splitting cutter 13 adopts a contact type hammering rock breaking principle, the splitting cutter 13 arranged on the cutter head 2 repeatedly hammers broken stones with large particle diameters through rotation of the cutter head 2, and quick breaking of the broken stones with large particle diameters is achieved. Splitting cutters 13 are mainly arranged on a top pipe rescue cutter head panel 15, and rock is crushed through repeated hammering on the rock.
The cutter head 2 is designed by adopting a large opening rate, a large-opening slag inlet 14 is arranged on the cutter head 2, a large amount of broken surrounding rocks are formed by collapsed rock, most small-particle broken surrounding rocks can directly enter a slag discharging cavity of the cutter head 2 without being broken, the slag discharging efficiency is improved, the rear end of the cutter head 2 is connected with a large-size spiral conveyor, the spiral conveyor can smoothly discharge slag stones entering the slag discharging cavity, a scraper conveyor 17 is arranged at the rear end of the spiral conveyor, the scraper conveyor 17 conveys the slag stones out of the pipe, and the scraper conveyor 17 is gradually continued along with the jacking of a top pipe, so that the continuous conveying of the large-particle-size slag stones is ensured.
Because the unknown condition of the front end of the collapsed rock mass is more, people are extremely easy to be buried, or the front end meets the obstacles such as angle steel and an anchor rod, the people are required to enter the front end of the cutter head 2 to remove the obstacles, the center of the traditional pipe jacking equipment is a closed space, and the workers cannot enter the machine head quickly to handle emergency. The center of the device is in an open state, the device is provided with a complete rescue channel, and workers enter the machine head through the inner space of the inner spiral slag discharge pipe 9, so that the emergency treatment can be completed.
The foregoing is only a preferred embodiment of the present invention, and many variations in the specific embodiments and applications of the invention may be made by those skilled in the art without departing from the spirit of the invention, which falls within the scope of the claims of this patent.

Claims (10)

1. The utility model provides a push pipe tunnelling is equipped for tunnel rescue which characterized in that: the scraper conveyor comprises a hob, a cutter disc, a front shell, a bearing, a pinion, a gearwheel, a speed reducer, a hydraulic motor, an internal spiral deslagging pipe, an inner ring and a scraper conveyor, wherein the front shell is of a double-layer concentric cylindrical structure, the inner ring is inserted in the center of the front shell, the bearing is installed between the inner ring and the front shell, the gearwheel is fixedly connected to the rear end face of the inner ring, the outer ring surface of the gearwheel is provided with transmission teeth, the pinion, the speed reducer and the hydraulic motor are provided with multiple groups, and the multiple groups of the pinion, the speed reducer and the hydraulic motor are distributed on the outer ring of the gearwheel in a circumferential manner, wherein the power end of the hydraulic motor is connected with the input end of a speed reducing motor, the output end of;
the cutter head is arranged at the front end of the inner ring, the hob is arranged on the front end surface of the cutter head, the inner spiral deslagging pipe is fixedly arranged on the inner ring surface of the inner ring, the cutter head is provided with a hollowed deslagging port, and the deslagging port is communicated with the inner spiral deslagging pipe through an inner cavity of the cutter head; the inner spiral slag discharging pipe is internally provided with a hollow spiral blade at the tail part of the inner spiral slag discharging pipe for transferring slag soil, and the scraper conveyor is arranged at the tail end of the inner spiral slag discharging pipe.
2. The jacking pipe tunneling equipment for roadway rescue according to claim 1, characterized in that: a horn-shaped rotary connecting wall is arranged between the front end and the rear end of the cutter head, the front end of the rotary connecting wall is an open end, and the front end of the rotary connecting wall is butted with the hob; the diameter of the rear end of the rotary connecting wall is smaller than that of the front end, and the rear end of the rotary connecting wall is in butt joint with the front end of the inner spiral slag discharge pipe.
3. The pipe jacking tunneling equipment for roadway rescue according to claim 1, wherein: the rear shell is installed at the tail of the front shell, a cylindrical structure is formed by the outer annular surfaces of the cutter head, the front shell and the rear shell, and the pinion, the gear wheel, the speed reducer and the hydraulic motor are arranged in the rear shell.
4. The jacking pipe tunneling equipment for roadway rescue according to claim 1, characterized in that: the hob comprises splitting cutters, a slag inlet and a cutter head panel, wherein the cutter head panel is a symmetrical multi-strip-shaped flat plate, a slag inlet is formed between every two adjacent scroll bars, and each scroll bar is provided with a cutting cutter on the front side surface.
5. The jacking pipe tunneling equipment for roadway rescue according to claim 4, characterized in that: the front side surface of the cutter head panel is also provided with a plurality of splitting cutters for quickly crushing large-particle-size crushed stones.
6. The jacking pipe tunneling equipment for roadway rescue according to claim 5, characterized in that: the splitting cutter comprises a splitting cutter rest, a splitting cutter tool and a connecting screw, wherein the splitting cutter rest is of a plate-shaped enclosing structure with a rectangular cross section, the splitting cutter tool is of a toothed structure, the cross section area of the tooth root of the splitting cutter tool is larger than that of the tooth top, the tooth root of the splitting cutter tool is inserted into the splitting cutter rest, and the splitting cutter rest and the splitting cutter tool are connected through the connecting screw.
7. The jacking pipe tunneling equipment for roadway rescue according to claim 6, characterized in that: the cross-sectional area of the tooth root of the splitting knife tool is smaller than the cross-sectional area of the area surrounded by the splitting knife tool rest, the splitting knife tool rest is hinged to the splitting knife tool through a connecting screw, and the splitting knife tool can swing around the connecting screw as a rotation center.
8. The jacking pipe tunneling equipment for roadway rescue according to claim 7, characterized in that: the addendum face of the splitting cutter is a plane.
9. The jacking pipe excavating equipment for roadway rescue according to claim 8, characterized in that: the top surface of the splitting knife cutter is provided with a plurality of grooves, the depth extending direction of the grooves extends towards the tooth root direction, and the width extending direction of the grooves is parallel to the connecting screw.
10. The push pipe tunneling equipment for roadway rescue according to any one of claims 5 to 9, characterized in that: taking the front side surface of the cutter head panel as a reference surface, wherein the height of the splitting cutter is greater than that of the cutting cutter; the splitting knives are circumferentially distributed on the front face of the cutter head panel.
CN202010875447.9A 2020-08-26 2020-08-26 Pipe jacking tunneling equipment for roadway rescue Active CN112253222B (en)

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Application Number Priority Date Filing Date Title
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CN112253222B CN112253222B (en) 2022-05-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113309534A (en) * 2021-07-29 2021-08-27 江苏宣宣重工机械有限公司 Earth pressure type spiral unearthing push bench and spiral unearthing method
CN116696378A (en) * 2023-08-08 2023-09-05 太原科技大学 Rock breaking push bench and use method thereof

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CN205654353U (en) * 2016-04-21 2016-10-19 中铁工程装备集团有限公司 Removable shield constructs tears sword girff
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CN107842370A (en) * 2017-12-26 2018-03-27 中铁工程装备集团有限公司 A kind of replaceable tear knife system of sand-pebble layer
CN207161087U (en) * 2017-07-29 2018-03-30 赣州伟嘉合金有限责任公司 A kind of shield tearing cutter
CN110735661A (en) * 2019-11-26 2020-01-31 煤科集团沈阳研究院有限公司 push pipe rescue equipment and rescue method for coal mine collapse roadway
CN210660099U (en) * 2019-06-27 2020-06-02 中交一公局第三工程有限公司 Wear-resisting type shield constructs quick-witted tear sword

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204082157U (en) * 2014-09-30 2015-01-07 中交隧道工程局有限公司 Shield structure tearing cutter
CN105201522A (en) * 2015-10-13 2015-12-30 上海隧道工程有限公司 Earth pressure balance push bench
CN205654353U (en) * 2016-04-21 2016-10-19 中铁工程装备集团有限公司 Removable shield constructs tears sword girff
CN206458473U (en) * 2016-12-01 2017-09-01 中铁七局集团第三工程有限公司 A kind of improved shield tear cutter
CN207161087U (en) * 2017-07-29 2018-03-30 赣州伟嘉合金有限责任公司 A kind of shield tearing cutter
CN107401406A (en) * 2017-09-05 2017-11-28 天津恒信有源机械设备有限公司 A kind of new push-bench applied to cobble structure
CN107842370A (en) * 2017-12-26 2018-03-27 中铁工程装备集团有限公司 A kind of replaceable tear knife system of sand-pebble layer
CN210660099U (en) * 2019-06-27 2020-06-02 中交一公局第三工程有限公司 Wear-resisting type shield constructs quick-witted tear sword
CN110735661A (en) * 2019-11-26 2020-01-31 煤科集团沈阳研究院有限公司 push pipe rescue equipment and rescue method for coal mine collapse roadway

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113309534A (en) * 2021-07-29 2021-08-27 江苏宣宣重工机械有限公司 Earth pressure type spiral unearthing push bench and spiral unearthing method
CN113309534B (en) * 2021-07-29 2021-10-08 江苏宣宣重工机械有限公司 Earth pressure type spiral unearthing push bench and spiral unearthing method
CN116696378A (en) * 2023-08-08 2023-09-05 太原科技大学 Rock breaking push bench and use method thereof
CN116696378B (en) * 2023-08-08 2023-10-13 太原科技大学 Rock breaking push bench and use method thereof

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