CN107965334B - Pipe sheet grabbing mechanism of shield tunneling machine splicing machine - Google Patents
Pipe sheet grabbing mechanism of shield tunneling machine splicing machine Download PDFInfo
- Publication number
- CN107965334B CN107965334B CN201711251808.7A CN201711251808A CN107965334B CN 107965334 B CN107965334 B CN 107965334B CN 201711251808 A CN201711251808 A CN 201711251808A CN 107965334 B CN107965334 B CN 107965334B
- Authority
- CN
- China
- Prior art keywords
- cylinder
- lifting arm
- grabbing
- adjusting oil
- oil cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 230000005641 tunneling Effects 0.000 title abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000036544 posture Effects 0.000 description 16
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
- E21D11/083—Methods or devices for joining adjacent concrete segments
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention provides a pipe sheet grabbing mechanism of a shield tunneling machine splicing machine, which comprises a lifting arm, a grabbing disc, a horizontal adjusting oil cylinder and a front-back adjusting oil cylinder, wherein the grabbing disc is arranged at the bottom end of the lifting arm through a spherical hinge bearing; ear rings are arranged at the bottoms of the cylinder bodies of the horizontal adjusting cylinder and the front and rear adjusting cylinder and at the top of the cylinder rod, and joint bearings are arranged in the ear rings; the horizontal adjusting oil cylinder is transversely arranged, an earring on a cylinder body of the horizontal adjusting oil cylinder is connected with the lifting arm through a pin shaft, and an earring on a cylinder rod of the horizontal adjusting oil cylinder is connected with the grabbing disc through a pin shaft; the front and back adjusting oil cylinders are vertically arranged, the earrings on the cylinder body are connected with the front end face or the back end face of the lifting arm through pin shafts, and the earrings on the cylinder rod are connected with the grabbing disc through pin shafts. The pipe grabbing mechanism of the shield tunneling machine splicing machine provided by the invention has the advantages of simple structure, less dosage of the adjusting oil cylinder, low manufacturing cost, easiness in control, high splicing efficiency and quality, high reliability and capability of adjusting the posture in the horizontal, front-back, left-right directions.
Description
Technical Field
The invention belongs to the field of tunnel construction equipment by a shield method, and particularly relates to a pipe sheet grabbing mechanism of a shield machine splicing machine.
Background
The shield machine is a large engineering machine for tunnel construction, the segment erector is an important component of the shield machine, and after the shield machine advances forward for a certain distance, the segment erector splices prefabricated segments into tunnel lining for protecting the surface of the excavated tunnel and preventing the tunnel from sedimentation, water seepage and other problems.
When the pipe piece is assembled by the pipe piece assembling machine, after the pipe piece is hoisted in place by the pipe piece hoisting machine, the pipe piece is vertically downwards placed by adopting the electric hoist or the steel wire rope, then the pipe piece is grabbed by the pipe piece grabbing device of the pipe piece assembling machine, and the pipe piece is assembled.
The existing pipe sheet posture adjusting device of the splicing machine has the following defects:
the degree of freedom of the duct piece posture adjusting device in the left-right direction, the front-back direction and the horizontal direction can be adjusted by adopting the expansion and contraction of the main propulsion oil cylinder in the assembling process, so that duct pieces and duct piece water stop seals are easy to damage.
The pipe piece attitude adjusting device has the advantages that the adjusting oil cylinders with the respective degrees are too many, the installation is difficult, the hydraulic pipelines are too many, the reliability is poor, the pipe piece shakes seriously in the assembling process, and the pipe piece water stop seal are easy to damage.
Disclosure of Invention
Therefore, the invention aims to provide a pipe sheet grabbing mechanism of the shield machine splicing machine, which has the advantages of simple structure, less dosage of an adjusting oil cylinder, low manufacturing cost, easy control, high splicing efficiency and quality, high reliability and capability of adjusting the gesture in the horizontal, front-back, left-right directions, so as to solve the problems.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
a pipe sheet grabbing mechanism of a shield tunneling machine splicing machine comprises a lifting arm, a grabbing disc, a horizontal adjusting oil cylinder and a front-back adjusting oil cylinder, wherein the grabbing disc is arranged at the bottom end of the lifting arm through a spherical hinge bearing; ear rings are arranged at the bottoms of the cylinder bodies of the horizontal adjusting cylinder and the front and rear adjusting cylinder and the top of the cylinder rod, and joint bearings are arranged in the ear rings; the horizontal adjusting oil cylinder is transversely arranged, an earring on a cylinder body of the horizontal adjusting oil cylinder is connected with the lifting arm through a pin shaft, and an earring on a cylinder rod of the horizontal adjusting oil cylinder is connected with the grabbing disc through a pin shaft; the front and back adjusting oil cylinders are vertically arranged, the earrings on the cylinder body of the front and back adjusting oil cylinders are connected with the front end face or the back end face of the lifting arm through pin shafts, and the earrings on the cylinder rod of the front and back adjusting oil cylinders are connected with the grabbing disc through pin shafts.
Further, the lifting arm is of a V-shaped structure, a left side arm of the lifting arm is connected with a radial cylinder on the left side of the splicing machine through a connecting pin shaft, a right side arm of the lifting arm is connected with a telescopic guide cylinder, and the telescopic guide cylinder is connected with the radial cylinder on the right side of the splicing machine through the connecting pin shaft.
Furthermore, a guide cavity is formed in the right side arm of the lifting arm, and the telescopic guide cylinder is arranged in the guide cavity.
Further, a locking anti-slip mechanism is arranged on the telescopic guide cylinder.
Further, the grabbing disc grabs the segment splicing head on the segment through the grabbing oil cylinder arranged at the center of the grabbing disc and the grabbing head connected with the cylinder rod of the grabbing oil cylinder.
Compared with the prior art, the pipe sheet grabbing mechanism of the shield tunneling machine splicing machine has the following advantages:
(1) The pipe piece grabbing mechanism of the shield machine splicing machine is provided with the horizontal adjusting oil cylinder, the joint bearing of the front and rear adjusting oil cylinder earrings rotates by a certain angle through the extension and retraction of the horizontal adjusting oil cylinder, so that the adjustment of the horizontal posture of the pipe piece can be realized, when the front and rear postures of the pipe piece are required to be adjusted, the front and rear adjusting oil cylinder extends and contracts, the joint bearing of the horizontal adjusting oil cylinder earrings rotates by a certain angle, and the adjustment of the front and rear postures of the pipe piece is realized, so that the structure is simple, the control is easy, and the safety and the reliability are realized;
(2) The left-right adjustment of the pipe piece grabbing mechanism of the shield machine splicing machine is realized by adopting the lifting arm with the telescopic guide cylinder, the lifting arm and the telescopic guide cylinder slide relatively through the radial cylinder on the right side of the splicing machine, the lifting arm and the grabbing disc rotate by taking the connecting pin shaft on the left side of the lifting arm as a rotation center, the left-right adjustment of the pipe piece can be realized, the common cylinder adjustment mode is abandoned, the use quantity of cylinders is effectively reduced, the manufacturing cost is reduced, and the shield machine splicing machine pipe piece grabbing mechanism is safe and reliable;
(3) The pipe piece grabbing mechanism of the shield machine splicing machine provided by the invention realizes the posture adjustment of the pipe piece in the front-back, left-right and horizontal directions through the horizontal adjustment oil cylinder, the front-back adjustment oil cylinder and the lifting arm with the telescopic guide cylinder connected with the radial oil cylinder of the splicing machine, has a simple structure and low manufacturing cost, has higher splicing efficiency and quality, and has high safety and reliability.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute an undue limitation on the invention. In the drawings:
FIG. 1 is a schematic structural view of a pipe sheet grabbing mechanism of a shield tunneling machine assembly machine;
FIG. 2 is a schematic diagram of the internal structure of the pipe sheet grabbing mechanism of the shield tunneling machine splicing machine;
FIG. 3 is a schematic diagram of the left and right posture adjustment of the pipe sheet grabbing mechanism of the shield tunneling machine assembly machine;
FIG. 4 is a schematic diagram of the shield tunneling machine splicing machine pipe sheet grabbing mechanism according to the invention during front and back posture adjustment;
FIG. 5 is a schematic diagram of the shield tunneling machine splicing machine pipe sheet grabbing mechanism according to the present invention when the horizontal posture is adjusted;
fig. 6 is a schematic structural view of the horizontal or front-rear adjusting cylinder according to the present invention.
Reference numerals illustrate:
1-a lifting arm; 2-ball pivot bearings; 3-grabbing a disc; 4-horizontally adjusting the oil cylinder; 5-adjusting the oil cylinder forwards and backwards; 6-earrings; 7-knuckle bearing; 8-a radial cylinder on the left side of the splicing machine; 9-a telescopic guide cylinder; 10-radial oil cylinders on the right side of the splicing machine; 11-grabbing an oil cylinder; 12-segment; 13-segment assembling heads; 14-a connecting pin shaft.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the invention, it should be understood that the terms "vertical," "transverse," "upper," "lower," "front," "rear," "left," "right," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the invention.
In the description of the invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 6, a pipe sheet grabbing mechanism of a shield tunneling machine splicing machine comprises a lifting arm 1, a grabbing disc 3, a horizontal adjusting oil cylinder 4 and a front-back adjusting oil cylinder 5, wherein the grabbing disc 3 is arranged at the bottom end of the lifting arm 1 through a spherical hinge bearing 2;
the lifting arm 1 is of a V-shaped structure, a left side arm of the lifting arm 1 is connected with a radial cylinder 8 on the left side of the splicing machine through a connecting pin shaft 14, a right side arm of the lifting arm 1 is connected with a telescopic guide cylinder 9, the telescopic guide cylinder 9 is connected with a radial cylinder 10 on the right side of the splicing machine through the connecting pin shaft 14, a guide cavity is formed in the right side arm of the lifting arm 1, and the telescopic guide cylinder 9 is arranged in the guide cavity; the grabbing mechanism with the segments 12 can be lifted or fallen by the simultaneous expansion and contraction of the radial cylinder of the splicing machine; when the radial cylinder 10 on the right side of the independently telescopic splicing machine is in telescopic connection, the right side arm of the lifting arm 1 and the telescopic guide cylinder 9 slide relatively, the lifting arm 1 and the grabbing disc 3 rotate by taking the connecting pin shaft 14 on the left side of the lifting arm 1 as a rotation center, and the left and right postures of the duct piece 12 are adjusted; when the radial cylinder 10 on the right side of the splicing machine stretches out and draws back, the right side arm of the lifting arm 1 and the telescopic guide cylinder 9 do not slide relatively, which has been verified in experimental use, and preferably, a locking anti-skid mechanism can be arranged on the lifting arm 1;
the bottom of the cylinder body of the horizontal adjusting cylinder 4 and the top of the cylinder rod of the front and rear adjusting cylinder 5 are respectively provided with an earring 6, and a knuckle bearing 7 is arranged in each earring 6; the horizontal adjusting oil cylinder 4 is transversely arranged, an earring 6 on a cylinder body of the horizontal adjusting oil cylinder is connected with the lifting arm 1 through a pin shaft, the earring 6 on a cylinder rod of the horizontal adjusting oil cylinder is connected with the grabbing disc 3 through a pin shaft, the position of the lifting arm 1 is fixed through the extension and retraction of the cylinder rod of the horizontal adjusting oil cylinder 4, and the grabbing disc 3 grabbing the pipe piece 12 is adjusted in the horizontal direction under the thrust of the cylinder rod and under the action of the spherical hinge bearing 2; the front and back adjusting oil cylinder 5 is vertically arranged, the earring 6 on the cylinder body is connected with the front end face or the back end face of the lifting arm 1 through a pin shaft, the earring 6 on the cylinder rod is connected with the grabbing disc 3 through a pin shaft, the position of the lifting arm 1 is fixed through the expansion and contraction of the cylinder rod of the front and back adjusting oil cylinder 5, and the grabbing disc 3 grabbing the pipe piece 12 is adjusted in the front and back direction under the thrust of the cylinder rod and under the action of the spherical hinge bearing 2.
Preferably, the grabbing disc 3 grabs the segment assembly head 13 on the segment 12 through the grabbing cylinder 11 arranged at the center and the grabbing head connected with the cylinder rod of the grabbing cylinder 11, and the segment 12 can be grabbed by using the grabbing disc with a vacuum chuck device, which is the prior art already disclosed and is not detailed herein.
The working process of the invention is as follows:
the pipe piece 12 is grabbed and locked by the grabbing disc 3, the lifting or lowering operation of the pipe piece 12 is realized by simultaneous expansion of radial oil cylinders at the left side and the right side of the splicing machine, the radial oil cylinders at the left side and the right side of the splicing machine are connected with the left side arm and the right side arm of the lifting arm 1, and the grabbing disc 3 and the grabbed pipe piece 12 are driven to lift or fall;
as shown in fig. 3, when the left and right postures of the duct piece 12 need to be adjusted, a locking anti-slip mechanism on the telescopic guide cylinder 9 is opened, the radial cylinder 10 on the right side of the splicing machine stretches, the lifting arm 1 and the grabbing plate 3 rotate by taking the connecting pin 14 of the left side arm of the lifting arm 1 as a rotation center (at the moment, the telescopic guide cylinder 9 slides relative to the right side arm of the lifting arm 1), so that the left and right postures of the duct piece 12 are adjusted;
as shown in fig. 4 and 6, when the front and back postures of the duct piece are required to be adjusted, the front and back adjusting oil cylinders 5 stretch out and draw back, the positions of the lifting arms 1 are fixed, the knuckle bearings 7 in the earrings 6 of the horizontal adjusting oil cylinders 4 rotate for a certain angle, and the grabbing disc 3 grabbing the duct piece 12 realizes the adjustment of the front and back postures of the duct piece 12 under the thrust of the cylinder rods of the front and back adjusting oil cylinders 5 and the action of the spherical hinge bearings 2;
as shown in fig. 5 and 6, when the horizontal posture of the duct piece needs to be adjusted, the horizontal adjustment oil cylinder 4 stretches out and draws back, the position of the lifting arm 1 is fixed, the knuckle bearing 7 in the ear ring 6 of the front and back adjustment oil cylinder 5 rotates by a certain angle, and the grabbing disc 3 grabbing the duct piece 12 realizes the adjustment of the horizontal posture of the duct piece 12 under the thrust of the cylinder rod of the horizontal adjustment oil cylinder 4 and the action of the spherical hinge bearing 2.
The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The utility model provides a shield constructs quick-witted assembly machine pipe piece and snatchs mechanism which characterized in that: comprises a lifting arm (1), a grabbing disc (3) arranged at the bottom end of the lifting arm (1) through a spherical hinge bearing (2), a horizontal adjusting oil cylinder (4) and a front-back adjusting oil cylinder (5); earrings (6) are arranged at the bottoms of the cylinder bodies of the horizontal adjusting cylinder (4) and the front and rear adjusting cylinder (5) and at the tops of the cylinder rods, and joint bearings (7) are arranged in the earrings (6); the horizontal adjusting oil cylinder (4) is transversely arranged, an earring on a cylinder body of the horizontal adjusting oil cylinder is connected with the lifting arm (1) through a pin shaft, and an earring on a cylinder rod of the horizontal adjusting oil cylinder is connected with the grabbing disc (3) through a pin shaft; the front and rear adjusting oil cylinders (5) are vertically arranged, earrings on the cylinder body of the front and rear adjusting oil cylinders are connected with the front end face or the rear end face of the lifting arm (1) through pin shafts, and earrings on the cylinder rod of the front and rear adjusting oil cylinders are connected with the grabbing disc (3) through pin shafts;
the lifting arm (1) is of a V-shaped structure, a left side arm of the lifting arm (1) is connected with a radial cylinder (8) on the left side of the splicing machine through a connecting pin shaft (14), a right side arm of the lifting arm (1) is connected with a telescopic guide cylinder (9), and the telescopic guide cylinder (9) is connected with a radial cylinder (10) on the right side of the splicing machine through the connecting pin shaft (14);
a guide cavity is formed in the right side arm of the lifting arm (1), and the telescopic guide cylinder (9) is arranged in the guide cavity;
a locking anti-slip mechanism is arranged on the telescopic guide cylinder (9);
the grabbing disc (3) grabs a segment splicing head (13) on a segment (12) through a grabbing oil cylinder (11) arranged at the center of the grabbing disc and a grabbing head connected with a cylinder rod of the grabbing oil cylinder (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711251808.7A CN107965334B (en) | 2017-12-01 | 2017-12-01 | Pipe sheet grabbing mechanism of shield tunneling machine splicing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711251808.7A CN107965334B (en) | 2017-12-01 | 2017-12-01 | Pipe sheet grabbing mechanism of shield tunneling machine splicing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107965334A CN107965334A (en) | 2018-04-27 |
| CN107965334B true CN107965334B (en) | 2024-03-19 |
Family
ID=61999224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711251808.7A Active CN107965334B (en) | 2017-12-01 | 2017-12-01 | Pipe sheet grabbing mechanism of shield tunneling machine splicing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107965334B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756959B (en) * | 2018-07-11 | 2024-02-02 | 中国铁建重工集团股份有限公司 | Segment vacuum grabbing device and heading machine |
| CN109113770A (en) * | 2018-10-15 | 2019-01-01 | 中铁工程装备集团有限公司 | A kind of duct piece assembling machine |
| CN110043298A (en) * | 2019-05-06 | 2019-07-23 | 中铁山河工程装备股份有限公司 | A kind of duct piece assembling machine section of jurisdiction attitude adjusting method and device |
| CN115506819A (en) * | 2022-09-13 | 2022-12-23 | 北方重工集团有限公司 | Segment erector grabbing device for shield tunneling machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200063A (en) * | 2007-12-24 | 2008-06-18 | 沈阳重型机械集团有限责任公司 | Manipulator of automatic positioning and rapid grasping pipe piece |
| CN101705830A (en) * | 2009-10-21 | 2010-05-12 | 上海隧道工程股份有限公司 | Vacuum cup six-degree-of-freedom shield tunnel segment erector |
| CN104234722A (en) * | 2014-09-20 | 2014-12-24 | 辽宁三三工业有限公司 | Gripping device of segment erector of shield tunneling machine |
| CN104989435A (en) * | 2015-06-12 | 2015-10-21 | 北方重工集团有限公司 | Duct piece hanging and conveying device applicable to miniature tunneling machine |
| CN207568620U (en) * | 2017-12-01 | 2018-07-03 | 辽宁三三工业有限公司 | A kind of shield machine assembling machine section of jurisdiction grasping mechanism |
-
2017
- 2017-12-01 CN CN201711251808.7A patent/CN107965334B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200063A (en) * | 2007-12-24 | 2008-06-18 | 沈阳重型机械集团有限责任公司 | Manipulator of automatic positioning and rapid grasping pipe piece |
| CN101705830A (en) * | 2009-10-21 | 2010-05-12 | 上海隧道工程股份有限公司 | Vacuum cup six-degree-of-freedom shield tunnel segment erector |
| CN104234722A (en) * | 2014-09-20 | 2014-12-24 | 辽宁三三工业有限公司 | Gripping device of segment erector of shield tunneling machine |
| CN104989435A (en) * | 2015-06-12 | 2015-10-21 | 北方重工集团有限公司 | Duct piece hanging and conveying device applicable to miniature tunneling machine |
| CN207568620U (en) * | 2017-12-01 | 2018-07-03 | 辽宁三三工业有限公司 | A kind of shield machine assembling machine section of jurisdiction grasping mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107965334A (en) | 2018-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107965334B (en) | Pipe sheet grabbing mechanism of shield tunneling machine splicing machine | |
| US10563468B2 (en) | Automatic auxiliary workover rig | |
| CN203685052U (en) | Hoisting derrick special for coiled tubing equipment | |
| CN106245520B (en) | Bridge inspection vehicle walking mechanism and bridge inspection vehicle | |
| CN100588603C (en) | Harvester crane | |
| CN103711437A (en) | Hoisting derrick specially for coiled tubing equipment | |
| CN104405414B (en) | Hydraulic pressure shield machine segment assembly device | |
| CN102190255B (en) | Crane | |
| CN106759341B (en) | A kind of hydraulic jaw type pile-drawing machine and pile extracting method | |
| CN104747078A (en) | Tunnel construction trolley | |
| CN101967988A (en) | Quickly-installed manipulator of attached type tunnel arch | |
| CN111762699A (en) | Safety tower crane and implementation method thereof | |
| CN102644301B (en) | Translation-type flat-digging grab bucket | |
| CN104533461B (en) | A kind of tunnel construction trolley horizontal mobile device | |
| WO2024114028A1 (en) | Heavy oil cylinder hoisting and turning-over tool and method | |
| CN209742887U (en) | Crushing device and arch center mounting crushing arm | |
| CN107059842A (en) | The equipment and construction method of construction of diaphragm wall precast wall body and matching operation | |
| CN110953926A (en) | Booster and core-level rocket binding and butting horizontal butting adjusting system and method | |
| CN214653042U (en) | Grab bucket for elevator | |
| CN210178381U (en) | Angle adjusting arm support | |
| CN211116075U (en) | Mechanical arm for moving and steering hydraulic support | |
| CN209817971U (en) | Telescopic arm type iron roughneck | |
| CN114147756A (en) | Gripper and mechanical arm for assembling large-tonnage prefabricated structural block | |
| CN109209451B (en) | Hanging flower basket and tunnel bow member mounting platform truck | |
| CN201354269Y (en) | Fixed single tripper capable of separating from and combining with main machine of stacker-reclaimer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |