CN110894049A - Intelligence section of track spreading machine - Google Patents

Intelligence section of track spreading machine Download PDF

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Publication number
CN110894049A
CN110894049A CN201811060765.9A CN201811060765A CN110894049A CN 110894049 A CN110894049 A CN 110894049A CN 201811060765 A CN201811060765 A CN 201811060765A CN 110894049 A CN110894049 A CN 110894049A
Authority
CN
China
Prior art keywords
track panel
track
frame
main body
body frame
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.)
Pending
Application number
CN201811060765.9A
Other languages
Chinese (zh)
Inventor
耿冬梅
杨建福
章远方
周衍领
万鹏
孙世豪
纪博林
王浩
李刚
姚坤锋
刘巍
叶林
赵博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Railway No5 Institute Engineering Machinery Co Ltd
China Railway Fifth Survey and Design Institute Group Co Ltd
Original Assignee
Beijing Railway No5 Institute Engineering Machinery Co Ltd
China Railway Fifth Survey and Design Institute Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Railway No5 Institute Engineering Machinery Co Ltd, China Railway Fifth Survey and Design Institute Group Co Ltd filed Critical Beijing Railway No5 Institute Engineering Machinery Co Ltd
Priority to CN201811060765.9A priority Critical patent/CN110894049A/en
Publication of CN110894049A publication Critical patent/CN110894049A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C11/00Trolleys or crabs, e.g. operating above runways
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C9/00Travelling gear incorporated in or fitted to trolleys or cranes
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B29/00Laying, rebuilding, or taking-up tracks; Tools or machines therefor
    • E01B29/05Transporting, laying, removing, or renewing both rails and sleepers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)

Abstract

The invention relates to the field of track panel laying, and discloses an intelligent track panel laying machine, which comprises: the main body frame is provided with the frame advancing device and used for controlling the main body frame to move, the main body frame is provided with the support, the support is connected with the main body frame through the track panel advancing device, the track panel lifting appliance is located below the support and connected with the support through the track panel lifting device, and the track panel lifting appliance is used for grabbing the track panel. According to the track panel paving device, the frame advancing device is used for controlling the horizontal movement of the main body frame, the track panel lifting appliance is used for lifting the track panel, the track panel lifting appliance is used for controlling the lifting and falling of the track panel lifting appliance and the track panel, the track panel advancing device is used for controlling the horizontal movement of the track panel lifting appliance and the track panel, the mechanical and automatic track panel paving is realized, the precision is high, the time consumption is short, the labor is saved, and the construction efficiency is high.

Description

Intelligence section of track spreading machine
Technical Field
The invention relates to the field of track panel laying, in particular to an intelligent track panel laying machine.
Background
At present, in the railway track bed construction in China, a common door hanger is generally adopted to hoist a rail panel into roof trusses to a rail panel paving position, the rail panel is laid in place coarsely, and then the required precision of the rail panel is realized through manual repeated adjustment. Because the section of track is extensive, relative theoretical position error is great, and later stage adjustment needs the manpower more, and is consuming time longer, and the efficiency of construction is lower. At present, no intelligent track panel paving equipment is applied.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide an intelligent track panel paving machine, which solves the problems that in the prior art, the track panel is laid in place and needs to be adjusted repeatedly by manpower, the required precision of the track panel is realized, and the problems of large error, large manpower consumption, long time consumption and low construction efficiency are caused.
(II) technical scheme
In order to solve the technical problem, the invention provides an intelligent track panel paving machine, which comprises: the track panel lifting device comprises a main body frame, a frame advancing device, a track panel lifting device, a track panel advancing device, a support and a track panel lifting device, wherein the main body frame is provided with the frame advancing device and used for controlling the main body frame to move, the support is arranged on the main body frame and connected with the main body frame through the track panel advancing device, the track panel lifting device is located below the support and connected with the support through the track panel lifting device, and the track panel lifting device is used for grabbing a track panel.
The main body frame comprises a main beam, a cross beam, a stand column and a bottom beam, the main beam, the cross beam, the stand column and the bottom beam are connected to form a cuboid frame, and the support passes through the track panel advancing device and is connected with the main beam.
Wherein, the frame advancing device is arranged at the bottom of the main body frame.
The frame advancing device comprises a track and a roller, the roller is arranged at the bottom of the main body frame, the track is laid below the roller, and the roller is slidably arranged on the track.
The track panel lifting device comprises a hydraulic winch and a steel wire rope, the hydraulic winch is arranged on the support, one end of the steel wire rope is connected with the hydraulic winch, and the other end of the steel wire rope is connected with the track panel lifting appliance.
The track panel advancing device comprises a wheel frame, and the wheel frame is slidably arranged on the main beam.
The track panel lifting appliance comprises a lifting appliance frame, a power device, a transmission device and a gripping apparatus, wherein the power device and the transmission device are arranged on the lifting appliance frame, the gripping apparatus is arranged at the bottom of the lifting appliance frame, and the power device is connected with the gripping apparatus through the transmission device.
The track panel fine adjustment mechanism comprises a transverse fine adjustment mechanism and a longitudinal fine adjustment mechanism, and the transverse fine adjustment mechanism and the longitudinal fine adjustment mechanism are arranged on the support.
The transverse fine adjustment mechanism and the longitudinal fine adjustment mechanism both comprise a plurality of oil cylinders.
(III) advantageous effects
The invention provides an intelligent track panel paving machine, which comprises: the track panel lifting device comprises a main body frame, a frame advancing device, a track panel lifting device, a track panel advancing device, a support and a track panel lifting device, wherein the main body frame is provided with the frame advancing device and used for controlling the main body frame to move, the support is arranged on the main body frame and connected with the main body frame through the track panel advancing device, the track panel lifting device is located below the support and connected with the support through the track panel lifting device, and the track panel lifting device is used for grabbing a track panel. According to the track panel paving device, the frame advancing device is used for controlling the horizontal movement of the main body frame, the track panel lifting appliance is used for lifting the track panel, the track panel lifting appliance is used for controlling the lifting and falling of the track panel lifting appliance and the track panel, the track panel advancing device is used for controlling the horizontal movement of the track panel lifting appliance and the track panel, the mechanical and automatic track panel paving is realized, the precision is high, the time consumption is short, the labor is saved, and the construction efficiency is high.
Drawings
FIG. 1 is a schematic structural diagram of an intelligent track panel paving machine according to the present invention;
FIG. 2 is a front view of an intelligent panel paver of the present invention;
FIG. 3 is a side view of an intelligent track panel placement machine of the present invention;
FIG. 4 is a top view of an intelligent panel paver of the present invention;
FIG. 5 is a schematic structural view of a stent of the present invention;
fig. 6 is a schematic structural view of the track panel spreader of the present invention.
In the figure, 1, a main body frame; 101. a main beam; 102. a cross beam; 103. a column; 104. a bottom beam; 2. a frame advancing device; 3. a track panel lifting device; 4. a track panel advancing device; 5. a support; 6. a track panel hanger; 601. a spreader frame; 602. a power plant; 603. a transmission device; 604. a gripper; 7. a track panel fine adjustment mechanism; 701. a transverse fine adjustment mechanism; 702. a longitudinal fine adjustment mechanism; 8. a track panel; 9. an electric control mechanism.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-6, the present invention discloses an intelligent track panel paving machine, comprising: the track panel lifting device comprises a main body frame 1, a frame advancing device 2, a track panel lifting device 3, a track panel advancing device 4, a support 5 and a track panel lifting device 6, wherein the main body frame 1 is provided with the frame advancing device 2 and used for controlling the movement of the main body frame 1, the support 5 is arranged on the main body frame 1, the support 5 passes through the track panel advancing device 4 and is connected with the main body frame 1, the track panel lifting device 6 is located below the support 5 and passes through the track panel lifting device 3 and is connected with the support 5, and the track panel lifting device 6 is used for grabbing a track panel 8.
Specifically, the invention further comprises an electric control mechanism 9 and a driving device, which are used for controlling the working states of the frame advancing device 2, the track panel lifting device 3 and the track panel advancing device 4, and further controlling the position of the track panel 8. The electric control mechanism 9 can be preferably a PLC electric control device. The advancing direction of the frame advancing device 2 is vertical to the advancing direction of the track panel advancing device 4, so that the frame advancing device 2 controls the whole track panel auxiliary assembly machine to move transversely, and the track panel advancing device 4 controls the track panel 8 to move longitudinally in the main body frame 1, so that the transverse and longitudinal bidirectional position adjustment of the track panel 8 is realized; the track panel lifting device 3 is used for lifting the track panel 8, so that the track panel 8 can move conveniently. The working method of the invention is as follows: and controlling the driving device to drive the track panel lifting device 3 by using the electric control mechanism 9, lifting the track panel 8 by using the track panel lifting appliance 6, controlling the frame travelling device 2 and the track panel travelling device 4 to move the lifted track panel 8 in place, and finally controlling the track panel lifting device 3 to place the track panel 8 at a preset position. The intelligent track panel paving machine has the advantages of variable-frequency stepless speed regulation, stable operation of the whole machine and accurate adjustment and alignment.
The invention provides an intelligent track panel paving machine, which comprises: the intelligent track panel paving machine comprises a main body frame, a frame advancing device, a track panel lifting device, a track panel advancing device, a support and a track panel lifting appliance, wherein the frame advancing device is used for controlling the whole horizontal movement of the intelligent track panel paving machine, the track panel lifting appliance is used for grabbing the track panel, the track panel lifting appliance and the track panel are controlled by the track panel lifting device to be lifted and fall, and the track panel advancing device is used for controlling the horizontal movement of the track panel lifting appliance and the track panel. The invention utilizes the intelligent track panel paving machine to replace the mode of track panel rough placement and manual multiple adjustment, realizes mechanical and automatic track panel paving, and has high precision, short time consumption, labor saving and high construction efficiency.
As shown in fig. 3, the main body frame 1 includes a main beam 101, a cross beam 102, a column 103 and a bottom beam 104, a plurality of the main beam 101, the cross beam 102, the column 103 and the bottom beam 104 are connected to form a rectangular parallelepiped frame, and the support 5 is connected to the main beam 101 through the track panel advancing device 4. Specifically, the main beam 101 and the cross beam 102 are located on the same horizontal plane and are distributed horizontally and longitudinally, the main beam 101 and the upright post 103 are located on the same horizontal plane and are distributed horizontally and vertically, the bottom beam 104 is parallel to the cross beam 102, and the bottom beam 104 is located below the cross beam 102.
As shown in fig. 1, the frame traveling device 2 is provided at the bottom of the main body frame 1. Specifically, the frame traveling device 2 is disposed at the bottom of the bottom beam 104 of the main body frame 1. Preferably, the frame advancing device 2 includes a rail and a roller, the roller is disposed at the bottom of the main body frame 1, the rail is laid below the roller, and the roller is slidably disposed on the rail. Specifically, the number of the rollers is at least four, and the rollers are respectively arranged at four corners of the main body frame 1. The intelligent track panel paving machine in the embodiment can realize integral movement by means of the tracks and the rollers. Other traveling devices can be selected to replace the traveling devices according to actual needs.
As shown in fig. 5, the track panel lifting device 3 includes a hydraulic winch and a steel wire rope, the hydraulic winch is disposed on the support 5, one end of the steel wire rope is connected to the hydraulic winch, and the other end of the steel wire rope is connected to the track panel lifting appliance 6. The track panel advancing device 4 drives the support 5 to move horizontally, drives the track panel lifting appliance 6 to move horizontally through the steel wire rope, and drives the track panel lifting appliance 6 to rise or fall by using the hydraulic winch and the steel wire rope. In this embodiment, at least four hydraulic winches are fixed at four corners of the support 5, and the wire rope is connected with the hydraulic winches to perform traction, and preferably, a corresponding number of pulley blocks can be arranged on the track panel lifting appliance 6 to change the traction direction and traction force of the wire rope.
As shown in fig. 5, the track panel running gear 4 includes a wheel frame slidably mounted on the main beam 101. Specifically, the number of the wheel frames is at least four, and the wheel frames are respectively fixed on four corners of the bracket 5, and are used for realizing the movement of the bracket 5 on the main beam 101.
As shown in fig. 6, the track panel spreader 6 includes a spreader frame 601, a power device 602, a transmission device 603 and a gripper 604, wherein the power device 602 and the transmission device 603 are both disposed on the spreader frame 601, the gripper 604 is disposed at the bottom of the spreader frame 601, and the power device 602 is connected to the gripper 604 through the transmission device 603. Specifically, the upper end of the track panel lifting appliance 6 is connected with the support 5 through a steel wire rope, and the horizontal and vertical movement of the track panel lifting appliance 6 is controlled through a hydraulic winch and the steel wire rope. The hanger frame 601 is used as a carrier of the power device 602, the transmission device 603 and the gripper 604, the power device 602 is used as the power of the gripper 604, and the power is transmitted by the transmission device 603, so that the gripper 604 grips and releases the track panel 8.
As shown in fig. 6, the track panel 8 fine adjustment structure 7 is further included, the track panel 8 fine adjustment structure 7 includes a transverse fine adjustment mechanism 701 and a longitudinal fine adjustment structure 702, and the transverse fine adjustment mechanism 701 and the longitudinal fine adjustment structure 702 are both disposed on the support 5. The lateral and longitudinal positions of the carriage 5, the panel spreader 6 and the panel 8 are fine-tuned by lateral and longitudinal fine tuning structures 702. Preferably, the lateral fine adjustment mechanism 701 and the longitudinal fine adjustment mechanism 702 each include a plurality of oil cylinders. Specifically, the transverse fine adjustment mechanism 701 comprises four oil cylinders, two oil cylinders are arranged on the inner side of the bracket 5, and two oil cylinders are arranged on the outer side of the bracket 5 and are used for realizing transverse fine adjustment of the track panel 8; the longitudinal fine-tuning structure 702 comprises two oil cylinders which are arranged on the outer side of the bracket 5 and used for realizing the longitudinal fine tuning of the track panel 8; and the lateral fine adjustment mechanism 701 and the longitudinal fine adjustment mechanism 702 may be independently operated, respectively. Wherein, the electric control mechanism 9 and the driving device are also used for controlling the working state of the track panel 8 fine adjustment structure 7.
The invention provides an intelligent track panel paving machine, which comprises: the main body frame, the frame advancing device, section of track elevating gear, section of track advancing device, and a support, section of track hoist and section of track fine-tuning, utilize the whole horizontal migration that frame advancing device control section of track assisted the installation, snatch the section of track through the section of track hoist, and utilize section of track elevating gear control section of track hoist and section of track hoist to hoist and rise and whereabouts, utilize the horizontal migration of section of track hoist and section of track advancing device control section of track hoist, section of track fine-tuning includes horizontal fine-tuning and vertical fine-tuning, be responsible for carrying out horizontal and vertical fine-tuning to the section of track, ensure to lay accurately. The invention uses the intelligent track panel paving machine to replace the way of track panel rough placement and manual multiple adjustment, realizes mechanical and automatic track panel paving, can perform transverse and longitudinal micro adjustment, and has high precision, short time consumption, manpower saving and high construction efficiency.
The invention provides an intelligent track panel paving machine, which comprises: the track panel lifting device comprises a main body frame, a frame advancing device, a track panel lifting device, a track panel advancing device, a support and a track panel lifting device, wherein the main body frame is provided with the frame advancing device and used for controlling the main body frame to move, the support is arranged on the main body frame and connected with the main body frame through the track panel advancing device, the track panel lifting device is located below the support and connected with the support through the track panel lifting device, and the track panel lifting device is used for grabbing a track panel. According to the invention, the frame advancing device is used for controlling the horizontal movement of the main body frame, the track panel lifting appliance is used for lifting the track panel, the track panel lifting appliance and the track panel lifting appliance are controlled to lift and fall by using the track panel lifting device, the track panel advancing device is used for controlling the horizontal movement of the track panel lifting appliance and the track panel, and the transverse fine adjustment mechanism and the longitudinal fine adjustment mechanism are used for finely adjusting the transverse position and the longitudinal position of the track panel, so that the mechanical and automatic track panel paving is realized, the accuracy is high, the time consumption is short, the manpower is saved, and the construction efficiency is high.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. The utility model provides an intelligence section of track felting machine which characterized in that includes: the track panel lifting device comprises a main body frame, a frame advancing device, a track panel lifting device, a track panel advancing device, a support and a track panel lifting device, wherein the main body frame is provided with the frame advancing device and used for controlling the main body frame to move, the support is arranged on the main body frame and connected with the main body frame through the track panel advancing device, the track panel lifting device is located below the support and connected with the support through the track panel lifting device, and the track panel lifting device is used for grabbing a track panel.
2. The intelligent track panel paving machine as claimed in claim 1, wherein the main body frame comprises main beams, cross beams, upright columns and bottom beams, a plurality of the main beams, the cross beams, the upright columns and the bottom beams are connected to form a rectangular frame, and the support is connected with the main beams through the track panel travelling device.
3. The intelligent track panel paving machine as recited in claim 1 wherein said frame travel means is provided at the bottom of said main body frame.
4. The intelligent track panel paving machine as claimed in claim 3, wherein the frame traveling device comprises a rail and a roller, the roller is arranged at the bottom of the main body frame, the rail is arranged below the roller, and the roller is slidably arranged on the rail.
5. The intelligent track panel paving machine as recited in claim 1, wherein the track panel lifting device comprises a hydraulic winch and a wire rope, the hydraulic winch is arranged on the support, one end of the wire rope is connected with the hydraulic winch, and the other end of the wire rope is connected with the track panel lifting appliance.
6. The intelligent panel paver of claim 2 wherein the panel travel means comprises a carriage slidably mounted on the main beam.
7. The intelligent track panel paver of claim 1 wherein the track panel spreader comprises a spreader frame, a power unit, a transmission and a gripper, the power unit and the transmission being disposed on the spreader frame, the gripper being disposed at the bottom of the spreader frame, the power unit being connected to the gripper via the transmission.
8. The intelligent track panel paving machine as recited in any of claims 1-7, further comprising a track panel fine adjustment mechanism, wherein the track panel fine adjustment mechanism comprises a transverse fine adjustment mechanism and a longitudinal fine adjustment mechanism, and the transverse fine adjustment mechanism and the longitudinal fine adjustment mechanism are both disposed on the bracket.
9. The intelligent panel paver of claim 8 wherein the transverse fine adjustment mechanism and the longitudinal fine adjustment mechanism each comprise a plurality of cylinders.
CN201811060765.9A 2018-09-12 2018-09-12 Intelligence section of track spreading machine Pending CN110894049A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811060765.9A CN110894049A (en) 2018-09-12 2018-09-12 Intelligence section of track spreading machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811060765.9A CN110894049A (en) 2018-09-12 2018-09-12 Intelligence section of track spreading machine

Publications (1)

Publication Number Publication Date
CN110894049A true CN110894049A (en) 2020-03-20

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CN201811060765.9A Pending CN110894049A (en) 2018-09-12 2018-09-12 Intelligence section of track spreading machine

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110863399A (en) * 2019-12-04 2020-03-06 洪飞 Auxiliary equipment for track laying
CN111794021A (en) * 2020-07-02 2020-10-20 中国铁建高新装备股份有限公司 Hoisting device and hoisting equipment for ballastless track
CN112681037A (en) * 2020-12-09 2021-04-20 荆金康 Track laying device and method for large-scale track traffic engineering construction
CN113734984A (en) * 2020-05-29 2021-12-03 中冶宝钢技术服务有限公司 Flat rail replacing equipment and method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2825716Y (en) * 2005-10-08 2006-10-11 北京万桥兴业机械有限公司 Slab felting machine
CN201010842Y (en) * 2007-03-22 2008-01-23 中铁一局集团有限公司新运工程公司 Tyre type span-variable multifunctional rail laying machine
KR20100137320A (en) * 2009-06-22 2010-12-30 (주) 모스펙 Magnet tyre crane
CN105274914A (en) * 2015-11-23 2016-01-27 中铁十一局集团有限公司 Maglev track panel mobile gantry crane
CN205399100U (en) * 2016-02-17 2016-07-27 成都市新筑路桥机械股份有限公司 Embedded track laying device
CN108221512A (en) * 2016-12-22 2018-06-29 天津合兴松科技有限公司 Adjustable track laying machine
CN208791046U (en) * 2018-09-12 2019-04-26 中铁第五勘察设计院集团有限公司 A kind of intelligence section of track spreading machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2825716Y (en) * 2005-10-08 2006-10-11 北京万桥兴业机械有限公司 Slab felting machine
CN201010842Y (en) * 2007-03-22 2008-01-23 中铁一局集团有限公司新运工程公司 Tyre type span-variable multifunctional rail laying machine
KR20100137320A (en) * 2009-06-22 2010-12-30 (주) 모스펙 Magnet tyre crane
CN105274914A (en) * 2015-11-23 2016-01-27 中铁十一局集团有限公司 Maglev track panel mobile gantry crane
CN205399100U (en) * 2016-02-17 2016-07-27 成都市新筑路桥机械股份有限公司 Embedded track laying device
CN108221512A (en) * 2016-12-22 2018-06-29 天津合兴松科技有限公司 Adjustable track laying machine
CN208791046U (en) * 2018-09-12 2019-04-26 中铁第五勘察设计院集团有限公司 A kind of intelligence section of track spreading machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110863399A (en) * 2019-12-04 2020-03-06 洪飞 Auxiliary equipment for track laying
CN113734984A (en) * 2020-05-29 2021-12-03 中冶宝钢技术服务有限公司 Flat rail replacing equipment and method
CN111794021A (en) * 2020-07-02 2020-10-20 中国铁建高新装备股份有限公司 Hoisting device and hoisting equipment for ballastless track
CN112681037A (en) * 2020-12-09 2021-04-20 荆金康 Track laying device and method for large-scale track traffic engineering construction

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