CN203922604U - Subway lay a railway track gantry crane dismounting and transportation rotary lifter - Google Patents

Subway lay a railway track gantry crane dismounting and transportation rotary lifter Download PDF

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Publication number
CN203922604U
CN203922604U CN201420352395.7U CN201420352395U CN203922604U CN 203922604 U CN203922604 U CN 203922604U CN 201420352395 U CN201420352395 U CN 201420352395U CN 203922604 U CN203922604 U CN 203922604U
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CN
China
Prior art keywords
railway track
gantry crane
laying
lay
rotary lifter
Prior art date
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Withdrawn - After Issue
Application number
CN201420352395.7U
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Chinese (zh)
Inventor
张明
张平
梁海涛
喻洪明
张峰
李娄
杨宏伟
王会乾
曹德志
侯明飞
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China Railway First Engineering Group Co Ltd
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China Railway First Engineering Group Co Ltd
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Priority to CN201420352395.7U priority Critical patent/CN203922604U/en
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Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model discloses a kind of subway lay a railway track gantry crane dismounting and transportation rotary lifter, comprise base and be arranged on the rotating core dish on base, on described rotating core dish, pylon mechanism is installed, described pylon mechanism comprises that two can regulate height and for supporting the pylon body of the gantry crane hanger of laying a railway track, be provided with for supporting pallet and the actuating unit for driving described pallet to move up and down of the gantry crane crossbeam of laying a railway track between two described pylon bodies.The transportation that this rotary lifter can be quick, convenient, actv. is realized the gantry crane of laying a railway track, installation, change across, remove and reclaim, it is safe, saves a large amount of manpowers, reduces labour intensity, can actv. accelerating construction progress.

Description

Subway lay a railway track gantry crane dismounting and transportation rotary lifter
Technical field
The utility model belongs to the subway gantry crane technical field of construction of laying a railway track, and is specifically related to a kind of subway lay a railway track gantry crane dismounting and transportation rotary lifter.
Background technology
The gauntry crane of laying a railway track is laid a railway track and is manufactured and designed for subway specially, can carry out dual-machine linkage and lay 25 meters of section of track operations, also can carry out small-sized lifting operation by unit in addition.Due in subway tunnel and station platform construction space size-constrained, so the gauntry crane that requires to lay a railway track tearing down and reconstructing, vertical and span can be fast while changing, complete rapidly the gantry crane assembling of laying a railway track under safety, laborsaving situation, the gantry crane that makes to lay a railway track enters follow-up construction operation.In tunnel, to tear cube method open be manually to utilize that on tunnel duct piece, injected hole is as lifting point to traditional gantry crane of laying a railway track, and chain block and steel rope have coordinated.Tradition is torn down and reconstructed the gantry crane method of laying a railway track generally needs the time of one day to complete, and within one day, lays a railway track and cannot complete with concreting work, will greatly affect job schedule, lags behind the duration.By using rotary lifter at most only to need within 3 hours, just to complete tearing down and reconstructing, becoming across work of the gantry crane of laying a railway track, and these 3 hours can be simultaneously and Contraction in Site team link up rear interspersed operation, be independent of each other.
Tradition is laid a railway track in gantry crane tunnel, in station, is torn cube method open: in tunnel lifting point Wei Dungou top, and in station, lifting point is station structure topside space.Both methods of tearing down and reconstructing are all to use steel rope and chain block by lifting point, the upper beam center of the gantry crane of laying a railway track to be fixed; The method of the left and right sides, gantry crane bottom supporting leg by fixed cross beam of laying a railway track is fixed; The flanged plate that the gantry crane of laying a railway track supporting leg out of shape place span is changed and disassembling bolts (or inserting flanged plate), remove (or inserting flanged plate) gantry crane of laying a railway track after flanged plate and use bolt connection good.The gantry crane of laying a railway track all needs to carry out upper and lower part structure and disintegrates in transportation, installation, demolishing process.
This complicated operation and need that a large amount of skilled person's good teamworks, efficiency are low, poor stability; This,, by strengthening the input of human and material resources, financial resources, increases engineering cost, also can cause the delay of duration simultaneously.In face of at present numerous industry competitions, if who can have more efficient construction method, security risk is reduced to and is minimized, who just has better achievement, occupies the more market share.Therefore the reform and innovation of equipment are imperative, and safety, efficiently, new installation also will obtain the favor of Geng Duo unit in charge of construction easily.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of subway lay a railway track gantry crane dismounting and transportation rotary lifter are provided.Transportation, recovery, installation and the change that this rotary lifter can be quick, convenient, actv. is realized the gantry crane of laying a railway track across, it is safe, saves a large amount of manpowers, reduces labour intensity, can actv. accelerating construction progress.
For achieving the above object, the technical solution adopted in the utility model is: subway lay a railway track gantry crane dismounting and transportation rotary lifter, it is characterized in that: comprise base and be arranged on the rotating core dish on base, on described rotating core dish, pylon mechanism is installed, described pylon mechanism comprises that two can regulate height and for supporting the pylon body of the gantry crane hanger of laying a railway track, be provided with for supporting pallet and the actuating unit for driving described pallet to move up and down of the gantry crane crossbeam of laying a railway track between two described pylon bodies.
Above-mentioned subway lay a railway track gantry crane dismounting and transportation rotary lifter, it is characterized in that: the below of described base is provided with the adapter plate being fixedly mounted on flat truck, described base and adapter plate are bearing fit, and the arranged outside of described base has the regulating mechanism that can drive base to slide along adapter plate.
Above-mentioned subway lay a railway track gantry crane dismounting and transportation rotary lifter, is characterized in that: described regulating mechanism comprise the riser that is arranged on adapter plate and with the adjusting screw(rod) of riser screw thread fit, one end of described adjusting screw(rod) coordinates with chassis outer side face butt.
Above-mentioned subway lay a railway track gantry crane dismounting and transportation rotary lifter, it is characterized in that: described pylon body comprises inner sleeve and outer tube, the lower end of described inner sleeve is connected with rotating core dish, the upper end of described inner sleeve is stretched in described outer tube, the upper end of described outer tube is suitable with the hanger of the gantry crane of laying a railway track, on described inner sleeve and outer tube, all correspondence offers radial hole, is provided with the fastener for positioning inner sleeve pipe and outer tube in described radial hole.
Above-mentioned subway lay a railway track gantry crane dismounting and transportation rotary lifter, is characterized in that: the upper end of described outer tube is provided with the deep-slotted chip breaker suitable with the hanger of the gantry crane of laying a railway track.
Above-mentioned subway lay a railway track gantry crane dismounting and transportation rotary lifter, it is characterized in that: described base comprises the core print seat being rotating with rotating core dish, the arranged outside of described core print seat has roller guard shield, is provided with the roller that rolls and coordinate with rotating core dish upper surface in described roller guard shield.
Above-mentioned subway lay a railway track gantry crane dismounting and transportation rotary lifter, it is characterized in that: the quantity of described roller is a plurality of, and a plurality of described roller is evenly laid around the circumferencial direction of rotating core dish.
Above-mentioned subway lay a railway track gantry crane dismounting and transportation rotary lifter, is characterized in that: between described core print seat and rotating core dish, be provided with the ball for guiding rotating core dish to rotate.
Above-mentioned subway lay a railway track gantry crane dismounting and transportation rotary lifter, is characterized in that: described actuating unit is hydraulic ram.
Above-mentioned subway lay a railway track gantry crane dismounting and transportation rotary lifter, is characterized in that: described hydraulic ram adopts double acting hydraulic cylinder.
The utility model compared with prior art has the following advantages:
1, of the present utility model simple in structure, rationally novel in design.
2, the utility model adopts after the gantry crane jacking of laying a railway track 90-degree rotation again, and by flat truck transportation, become across and reclaim, when mounted, the vertical gantry crane of laying a railway track of the gantry crane opposite spin degree of laying a railway track again, it is safe, saves a large amount of manpowers, reduce labour intensity, can actv. accelerating construction progress.
3, the utility model is by regulating mechanism is set, can be when gantry crane be laid a railway track in installation, by adjusting the described regulating mechanism gantry crane that makes to lay a railway track, keep suitable distance with the gantry crane rail of laying a railway track, and its regulative mode is simple, quick.
4, the utility model is by arranging roller, can be when rotating core dish rotates, roller can apply good bearing force to rotating core dish on the one hand, avoid described pylon mechanism when rotated, because the weight of the gantry crane of laying a railway track is compared with greatly the safety misadventures such as rollover occurring, can guide the rotation of rotating core dish on the other hand.
5, the utility model is by ball is set, for rotating core dish relative to base rotate provide may, this rotating manner is simple in structure, and ball can carry vertical load, job security is high.
6, of the present utility model to realize cost low, and result of use is good, is convenient to promote the use of.
In sum, the utility model is simple in structure, and rationally novel in design, job security is high, and long service life has been saved manpower, has accelerated construction speed, and can guarantee safety, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model.
Fig. 2 is left view of the present utility model.
Fig. 3 is use view of the present utility model.
Description of reference numerals:
1-flat truck; 2-adapter plate; 3-adjusting screw(rod);
4-riser; 5-core print seat; 6-roller S. A.;
7-roller guard shield; 8-roller; 9-inner sleeve;
10-radial hole; 11-outer tube; 12-hydraulic power unit;
13-deep-slotted chip breaker; 14-withstanding tight block; 15-butt flange;
16-rotating core dish; 17-ball; 18-base;
19-pallet; 20-hydraulic ram; 20-1-outer shell;
20-2-inner casing; 21-the gantry crane of laying a railway track; 21-1-hanger;
21-2-supporting leg; 22-fastener.
The specific embodiment
A kind of subway as depicted in figs. 1 and 2 lay a railway track gantry crane dismounting and transportation rotary lifter, comprise base 18 and be arranged on the rotating core dish 16 on base 18, on described rotating core dish 16, pylon mechanism is installed, described pylon mechanism comprises that two can regulate height and for supporting the pylon body of the gantry crane 21 hanger 21-1 that lay a railway track, be provided with for supporting pallet 19 and the actuating unit 20 for driving described pallet 19 to move up and down of gantry crane 21 crossbeams of laying a railway track between two described pylon bodies.Described pallet 19 is fixedly connected with described pylon body.
As depicted in figs. 1 and 2, the below of described base 18 is provided with the adapter plate 2 being fixedly mounted on flat truck 1, and described base 18 is bearing fit with adapter plate 2, and the arranged outside of described base 18 has the regulating mechanism that can drive base 18 to slide along adapter plate 2.
As shown in Figure 1, described regulating mechanism comprise the riser 4 that is arranged on adapter plate 2 and with the adjusting screw(rod) 3 of riser 4 screws thread fit, one end of described adjusting screw(rod) 3 coordinates with base 18 lateral surface butts.
As depicted in figs. 1 and 2, described pylon body comprises inner sleeve 9 and outer tube 11, the lower end of described inner sleeve 9 is connected with rotating core dish 16 by butt flange 15, the upper end of described inner sleeve 9 is stretched in described outer tube 11, the upper end of described outer tube 11 is suitable with the hanger 21-1 of the gantry crane 21 of laying a railway track, on described inner sleeve 9 and outer tube 11, all correspondence offers radial hole 10, is provided with the fastener 22 for positioning inner sleeve pipe 9 and outer tube 11 in described radial hole 10.The preferred way of the present embodiment is that described fastener 22 adopts pin.
As shown in Figure 1, the upper end of described outer tube 11 is provided with the deep-slotted chip breaker 13 suitable with the hanger 21-1 of the gantry crane 21 of laying a railway track.By deep-slotted chip breaker 13 is set, under gantry crane 21 Gravitative Loads of laying a railway track, that can guarantee that the hanger 21-1 of outer tube 11 and the gantry crane 21 of laying a railway track can be firm, safe is connected.
As depicted in figs. 1 and 2, described base 18 comprises the core print seat 5 being rotating with rotating core dish 16, described core print seat 5 is arranged on the upper surface of base 18, the arranged outside of described core print seat 5 has roller guard shield 7, in described roller guard shield 7, be provided with the roller 8 that rolls and coordinate with rotating core dish 16 upper surfaces, concrete, described roller 8 is hinged on roller S. A. 6, and described roller S. A. 6 is arranged on roller guard shield 7.In the present embodiment, the quantity of described roller 8 is a plurality of, and a plurality of described roller 8 is evenly laid around the circumferencial direction of rotating core dish 16.
In the present embodiment, by roller 8 is set, can be when rotating core dish 16 rotates, roller 8 can apply good bearing force to rotating core dish 16 on the one hand, avoid described pylon mechanism when rotated, because the weight of the gantry crane 21 of laying a railway track is compared with greatly the safety misadventures such as rollover occurring, can guide the rotation of rotating core dish 16 on the other hand.
As depicted in figs. 1 and 2, between described core print seat 5 and rotating core dish 16, be provided with the ball 17 for guiding rotating core dish 16 to rotate.Concrete, described ball 17 is arranged between the core print seat 5 and rotating core dish 16 of core print seat 5, by ball 17 is set, for rotating core dish 16 rotates possibility is provided relative to base 18, this rotating manner is simple in structure, and ball 17 can carry vertical load, and job security is high.
As shown in Figure 2, described actuating unit is hydraulic ram 20.Described hydraulic ram 20 adopts double acting hydraulic cylinder.The lower end of described hydraulic ram 20 outer shell 20-1 is arranged on rotating core dish 16, and the piston rod of described double acting hydraulic cylinder 20 inner casing 20-2 is connected with pallet 19.
In the present embodiment, this rotary lifter adopts after gantry crane 21 jackings of laying a railway track 90-degree rotation again, and by flat truck 1 transportation, reclaim and become across, when mounted, the more vertical gantry crane 21 of laying a railway track of gantry crane 21 opposite spins 90 degree of laying a railway track.Transportation, recovery, installation and the change that it can be quick, convenient, actv. is realized the gantry crane 21 of laying a railway track across, it is safe, saves a large amount of manpowers, reduces labour intensity, can actv. accelerating construction progress.
In conjunction with Fig. 3, concrete, when adopting this rotary lifter to transport the gantry crane 21 of laying a railway track: with hanging device (gauntry crane or wheel crane), this rotary lifter is winched on the optimum position of flat truck 1 and fix respectively, be that adapter plate 2 is connected with flat truck 1, the gantry crane 21 of laying a railway track is sling to contraposition directly over rotary lifter, and make the hanger 21-1 corresponding matching of deep-slotted chip breaker on the external sleeve pipe 11 of described pylon 13 and the gantry crane 21 of laying a railway track.Hydraulic ram 20 rises, by pallet 19, hold the crossbeam of the gantry crane 21 of laying a railway track, by 90 ° of the winding roll crossbeam-rotatings of the gantry crane 21 of laying a railway track, prevent super wide, the impact of transfiniting is passed through, fastener for positioning inner sleeve pipe 9 and outer tube 11 22 is taken out, hydraulic ram 20 continues to rise by pallet 19 gantry crane 21 jack-up of laying a railway track, when the supporting leg 21-2 of the gantry crane 21 of laying a railway track exceeds flat truck 1, then the described pylon of artificial rotation mechanism, be that rotating core dish 16 rotates 90 degree relative to core print seat 5, hydraulic ram 20 strokes are down to minimum, the supporting leg 21-2 of gantry crane 21 of laying a railway track drops on flat truck 1, in the corresponding radial hole 10 inserting on inner sleeve 9 and outer tube 11 of described fastener 22, by 2 3T chain blocks and steel rope gantry crane 21 bundle of laying a railway track, draw and be fixed on flat truck 1, flat truck 1 transports, thereby realize the entrucking transportation of the gantry crane 21 of laying a railway track.
When adopting this rotary lifter to install the gantry crane 21 of laying a railway track: the steel rope of gantry crane 21 pylons of fixedly laying a railway track is removed, open the switch of hydraulic power unit 12, fastener 22 for positioning inner sleeve pipe 9 and outer tube 11 on described pylon body is taken out, hydraulic power unit 12 is controlled hydraulic rams 20 gantry crane 21 jack-up of laying a railway track, when the supporting leg 21-2 of the gantry crane 21 of laying a railway track exceeds flat truck 1, rotate again described pylon mechanism 90 degree (contrary with entrucking hand of rotation), hydraulic ram 20 strokes decline, the supporting leg 21-2 of gantry crane 21 of laying a railway track slowly falls (supporting leg 21-2 will keep certain height apart from the gantry crane rail of laying a railway track), by adjusting described regulating mechanism make to lay a railway track gantry crane 21, keep suitable distance with the gantry crane rail of laying a railway track, solution is laid a railway track gantry crane 21 in the problem that falls into position deviation while laying a railway track gantry crane rail, when the gantry crane 21 of laying a railway track falls into while laying a railway track gantry crane rail, described fastener 22 is taken out, then, hydraulic power unit 12 is by hydraulic ram 20 jack-up, when now laying a railway track the outer tube 11 of gantry crane 21 by jack-up and being elevated to preset height, then fastener 22 is penetrated in radial hole 10 corresponding on inner sleeve 9 and outer tube 11, and fastener 22 is fastening, next, regulate hydraulic power unit 12 that hydraulic ram 20 strokes are down to minimum, winding roll 90 degree that rotate the gantry crane 21 of laying a railway track are contrary with entrucking hand of rotation, the lay a railway track installation of gantry crane 21.
When adopting this rotary lifter to regulate to lay a railway track gantry crane 21 span: flat truck 1 pushes this rotary lifter contraposition to gantry crane 21 crossbeams of laying a railway track, and make the hanger 21-1 corresponding matching of deep-slotted chip breaker 13 on the external sleeve pipe 11 of described pylon and the gantry crane 21 of laying a railway track.Hydraulic power unit 12 is controlled hydraulic ram 20, pallet 19 gantry crane 21 of laying a railway track is held, then the fastener for positioning inner sleeve pipe 9 and outer tube 11 22 is taken out, the hydraulic ram 20 slowly jack-up of gantry crane 21 that works on and will lay a railway track, lay a railway track the supporting leg 21-2 bottom of gantry crane 21 a little more than flat truck 1, rotate again described pylon mechanism 90 degree, then hydraulic ram 20 strokes are down to supporting leg 21-2 a little more than flat truck 1, by the hand change straddle mounting of laying a railway track on gantry crane 21, put change span, then described in opposite spin, pylon mechanism 90 spends, hydraulic power unit 12 is controlled hydraulic ram 20 uniform descents until fall into the gantry crane rail of laying a railway track that has changed span, by fastener 22, the relative position of inner sleeve 9 and outer tube 11 is fixed again, the gantry crane 21 of laying a railway track becomes across success.Wherein, gantry crane 21 spans of laying a railway track are: 2.9m, and 3.1m, 3.6m (this gantry crane span of laying a railway track can arrange different spans according to construction demand and working condition), and can realize between different spans and changing.
In the present embodiment, when the gantry crane 21 of laying a railway track being reclaimed by this rotary lifter, flat truck 1 pushes this rotary lifter contraposition to the gantry crane 21 of laying a railway track, and makes the hanger 21-1 corresponding matching of deep-slotted chip breaker 13 on the external sleeve pipe 11 of described pylon and the gantry crane 21 of laying a railway track.Start hydraulic power unit 12, the stroke jack-up of hydraulic ram 20 is held to the crossbeam of the gantry crane 21 of laying a railway track, take out on described pylon body a plurality of fasteners 22 for positioning inner sleeve pipe 9 and outer bobbin 11, then hydraulic power unit continue to be controlled the hydraulic ram 20 slowly jack-up of gantry crane 21 of laying a railway track, when the supporting leg 21-2 bottom of the gantry crane 21 of laying a railway track is a little more than flat truck 1, then the described pylon of artificial rotation mechanism, even if rotating core dish 16 rotates 90 degree relative to core print seat 5, next hydraulic ram 20 strokes reduce, the supporting leg 21-2 of gantry crane 21 of laying a railway track drops on flat truck 1, then with 2 3T chain blocks and steel rope, equipment bundle is drawn and fixed, flat truck 1 transports the gantry crane 21 of laying a railway track and returns to appointment place, the recovery of gantry crane 21 of laying a railway track completes.In the present embodiment, described flat truck 1 can be for wheel-track type, also can be rubber wheel or crawler type.
In the present embodiment, by adjusting the described regulating mechanism gantry crane 21 that makes to lay a railway track, keep the concrete way of suitable distance to be with the gantry crane rail of laying a railway track: rotation adjusting screw(rod) 3, adjusting screw(rod) 3 rotates relative to riser 4, produce parallel motion simultaneously, and then the rotation of adjusting screw(rod) 3, the lateral surface of 14 pairs of bases 18 of withstanding tight block of adjusting screw(rod) 3 medial extremitys applies pressure, and then adjust by being positioned at the multipair regulating mechanism of base 18 both sides, thereby the gantry crane 21 that makes to lay a railway track remains in suitable distance range with the gantry crane rail of laying a railway track.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification, change and equivalent structure transformation of above embodiment being done according to the utility model technical spirit, all still belongs in the protection domain of technical solutions of the utility model.

Claims (10)

1. lay a railway track gantry crane dismounting and transportation rotary lifter of subway, it is characterized in that: comprise base (18) and be arranged on the rotating core dish (16) on base (18), on described rotating core dish (16), pylon mechanism is installed, described pylon mechanism comprises that two can regulate height and for supporting the pylon body of gantry crane (21) hanger (21-1) of laying a railway track, be provided with for supporting pallet (19) and the actuating unit (20) for driving described pallet (19) to move up and down of gantry crane (21) crossbeam of laying a railway track between two described pylon bodies.
2. lay a railway track gantry crane dismounting and transportation rotary lifter of subway according to claim 1, it is characterized in that: the below of described base (18) is provided with the adapter plate (2) being fixedly mounted on flat truck (1), described base (18) is bearing fit with adapter plate (2), and the arranged outside of described base (18) has the regulating mechanism that can drive base (18) to slide along adapter plate (2).
3. lay a railway track gantry crane dismounting and transportation rotary lifter of subway according to claim 2, it is characterized in that: described regulating mechanism comprise the riser (4) that is arranged on adapter plate (2) and with the adjusting screw(rod) (3) of riser (4) screw thread fit, one end of described adjusting screw(rod) (3) coordinates with base (18) lateral surface butt.
4. lay a railway track gantry crane dismounting and transportation rotary lifter of subway according to claim 1, it is characterized in that: described pylon body comprises inner sleeve (9) and outer tube (11), the lower end of described inner sleeve (9) is connected with rotating core dish (16), the upper end of described inner sleeve (9) is stretched in described outer tube (11), the upper end of described outer tube (11) is suitable with the hanger (21-1) of gantry crane (21) of laying a railway track, the upper equal correspondence of described inner sleeve (9) and outer tube (11) offers radial hole (10), in described radial hole (10), be provided with the fastener (22) for positioning inner sleeve pipe (9) and outer tube (11).
5. lay a railway track gantry crane dismounting and transportation rotary lifter of subway according to claim 4, is characterized in that: the upper end of described outer tube (11) is provided with the deep-slotted chip breaker (13) suitable with the hanger (21-1) of the gantry crane of laying a railway track (21).
6. lay a railway track gantry crane dismounting and transportation rotary lifter of subway according to claim 1, it is characterized in that: described base (18) comprises the core print seat (5) being rotating with rotating core dish (16), the arranged outside of described core print seat (5) has roller guard shield (7), is provided with the roller (8) that rolls and coordinate with rotating core dish (16) upper surface in described roller guard shield (7).
7. lay a railway track gantry crane dismounting and transportation rotary lifter of subway according to claim 6, it is characterized in that: the quantity of described roller (8) is a plurality of, and a plurality of described roller (8) is evenly laid around the circumferencial direction of rotating core dish (16).
8. lay a railway track gantry crane dismounting and transportation rotary lifter of subway according to claim 6, is characterized in that: between described core print seat (5) and rotating core dish (16), be provided with the ball (17) for guiding rotating core dish (16) to rotate.
9. lay a railway track gantry crane dismounting and transportation rotary lifter of subway according to claim 1, is characterized in that: described actuating unit is hydraulic ram (20).
10. lay a railway track gantry crane dismounting and transportation rotary lifter of subway according to claim 9, is characterized in that: described hydraulic ram (20) adopts double acting hydraulic cylinder.
CN201420352395.7U 2014-06-28 2014-06-28 Subway lay a railway track gantry crane dismounting and transportation rotary lifter Withdrawn - After Issue CN203922604U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420352395.7U CN203922604U (en) 2014-06-28 2014-06-28 Subway lay a railway track gantry crane dismounting and transportation rotary lifter

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Application Number Priority Date Filing Date Title
CN201420352395.7U CN203922604U (en) 2014-06-28 2014-06-28 Subway lay a railway track gantry crane dismounting and transportation rotary lifter

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104085823A (en) * 2014-06-28 2014-10-08 中铁一局集团有限公司 Rotating lifter for dismounting and transporting metro track laying gantry crane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104085823A (en) * 2014-06-28 2014-10-08 中铁一局集团有限公司 Rotating lifter for dismounting and transporting metro track laying gantry crane
CN104085823B (en) * 2014-06-28 2016-02-24 中铁一局集团有限公司 Subway is laid a railway track gantry crane dismounting and transport rotary lifter

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AV01 Patent right actively abandoned

Granted publication date: 20141105

Effective date of abandoning: 20160224

C25 Abandonment of patent right or utility model to avoid double patenting