CN111747308A - 25m steel rail replacing and laying device for extra-long subway tunnel and using method - Google Patents
25m steel rail replacing and laying device for extra-long subway tunnel and using method Download PDFInfo
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- CN111747308A CN111747308A CN202010562901.5A CN202010562901A CN111747308A CN 111747308 A CN111747308 A CN 111747308A CN 202010562901 A CN202010562901 A CN 202010562901A CN 111747308 A CN111747308 A CN 111747308A
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- steel rail
- walking
- laying
- rail
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
- B66C19/005—Straddle carriers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/28—Duplicate, e.g. pivoted, members engaging the loads from two sides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
- B66C1/64—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for T- or I-section beams or girders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
- B66C5/04—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods with runways or tracks supported for movements relative to bridge or gantry
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/02—Travelling gear incorporated in or fitted to trolleys or cranes for underhung trolleys or cranes
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/16—Transporting, laying, removing, or replacing rails; Moving rails placed on sleepers in the track
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses a 25m steel rail replacing and laying device for an extra-long subway tunnel and a using method thereof, wherein the device comprises a replacing and laying portal frame, a travelling mechanism, an auxiliary travelling device and a hoisting system; the replacing and laying portal frame comprises a vertical beam, an upper beam and a limiting cross beam, wherein the upper beam and the limiting cross beam are fixed with the vertical beam; the walking rollers are arranged below the replacing and laying portal frame; the auxiliary walking device comprises auxiliary walking wheels and an auxiliary walking leaning beam, the auxiliary walking leaning beam is welded and fixed on the changing and laying portal frame, and the auxiliary walking wheels can freely slide on the side of the track bed; the hoisting system comprises a walking track, an electric hoist, a lifting hook, steel rail calipers and a remote controller; the walking track is fixed below the upper beam, and limiting plates are arranged at two ends of the walking track; the remote controller can control the electric hoist to freely walk on the walking track, and the steel rail calipers are sleeved on the lifting hooks. The invention can assist the operations of aligning and placing the steel rail, improves the replacement and laying efficiency of the steel rail, and avoids the problems of safety risk, rail damage to a track bed and the like caused by the traditional manual rail turning.
Description
Technical Field
The invention relates to a 25m steel rail replacing and laying device for an extra-long subway tunnel and a using method, and belongs to the field of auxiliary hoisting tools for subway steel rails.
Background
Track replacement and pavement is a mature technology and mainly relates to the field of auxiliary hoisting tools for subway steel rails. At present, most of common rail replacing and paving adopt manual track lifting devices, and the rail replacing and paving can be realized by means of the manual track lifting devices. Although the manual track lifting device comprises a mechanical type and a hydraulic type, the manual track lifting device still wastes time and labor, needs a plurality of machines for operation, is low in efficiency and high in labor intensity, and even can cause safety accidents due to mechanical failure or improper operation of personnel.
At present, although researchers develop walking type track lifting equipment, the walking function is only added on the basis of the traditional gantry crane, and the hoisting and transferring of the track are realized through rollers. In the actual operation process, workers find that track hoisting is difficult to realize by the gantry crane due to the fact that the 25m steel rail is long. Therefore, in order to solve the problem of difficulty in replacing, laying and transporting the steel rails of the subway tunnel under construction, a device with a more reasonable structure needs to be designed, and the rail replacing and laying work is guaranteed to be carried out orderly.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a 25m steel rail replacing and laying device for an extra-long subway tunnel and a using method thereof, which ensure the safety and reliability of hoisting, and are simple in tool and easy to operate.
The purpose of the invention is realized by the following technical scheme:
a25 m steel rail replacing and laying device for an ultra-long subway tunnel comprises a replacing and laying portal frame, a travelling mechanism, an auxiliary travelling device and a hoisting system;
the replacing and laying portal frame comprises a vertical beam, an upper beam and a limiting cross beam, wherein the upper beam and the limiting cross beam are fixed with the vertical beam;
the travelling mechanism comprises a travelling roller, and the travelling roller is arranged below the changing and laying portal frame; the walking rollers are placed below the ballast bed and can walk freely;
the auxiliary walking device comprises auxiliary walking wheels and an auxiliary walking leaning beam, the auxiliary walking leaning beam is welded and fixed on the changing and laying portal frame, and the auxiliary walking wheels can freely slide on the side of the track bed;
the hoisting system comprises a walking track, an electric hoist, a lifting hook, steel rail calipers and a remote controller; the walking track is fixed below the upper beam, and limiting plates are arranged at two ends of the walking track; the remote controller can control the electric hoist to freely walk on the walking track, and the steel rail calipers are sleeved on the lifting hooks.
Preferably, the shop door changing frame further comprises a top plate arranged on the upper beam.
As the preferred mode, set up mounting flange on the roof, the vertical beam passes through mounting flange and roof connection.
Preferably, the ends of the upper beam and the limiting beam are fixed with the vertical beam.
Preferably, the limiting cross beam is arranged in the middle of the vertical beam.
As the preferred mode, be the type of falling V after the vertical beam is fixed, an upper beam corresponds sets up two sets of vertical beams, and vertical beam sets up the both sides at the upper beam.
Preferably, the vertical beam is fixed to a top plate provided on the upper beam through a fixing flange, and the fixing flange is welded to the top plate.
As a preferred mode, the replacing and paving devices are arranged into two sets, and the structures of the replacing and paving devices are consistent; two sets of replacing and paving devices are placed above the poured secondary ballast bed; the two sets of the replacing and laying devices are respectively stopped at two sides of the 25m steel rail.
Preferably, the two sets of the replacing and laying devices are respectively stopped at the position which is 5.5m-6.5m away from the 25m steel rail end.
The use method of the replacing and laying device comprises the steps that the replacing and laying device is used; the method comprises the following steps:
the method comprises the following steps: firstly, placing A, B two sets of changing and paving devices above a poured secondary ballast bed;
step two: the steel rail transportation flat car is parked behind the replacing and paving device, power output is provided for a hoisting system of the replacing and paving device, then the two replacing and paving devices are pushed manually to cross the transportation flat car, in the pushing process of the replacing and paving device, the auxiliary travelling wheels avoid friction with the side of the track bed, and the two replacing and paving devices are respectively parked at the positions 5.5-6.5 m away from the end of the steel rail;
step three: the lifting hook is controlled by the remote controller of the electric hoist to descend to the position of the steel rail, the calipers of the steel rail are clamped at the rail web of the steel rail, and the lifting hook is controlled by the remote controller to lift;
step four: when the steel rail is lifted to a set height, the two rail replacing devices are pushed to the operation position, and then the remote controller is used for controlling the steel rail to descend, align, place and the like.
Step five: and after the steel rail is placed, fixing the steel rail.
The invention has the beneficial effects that:
the invention solves the problem of difficulty in replacing, laying and transporting the steel rails of the subway tunnel under construction. A, B two sets of steel rail replacing and paving devices are arranged on a poured subway track bed, traveling wheels are arranged below the replacing and paving devices and can freely move back and forth, the replacing and paving devices can penetrate through a steel rail transport flat car, and A, B two sets of replacing and paving devices are pushed to transport the steel rail from the rail transport car to a replacing and paving position.
The invention can also assist the operations of steel rail alignment, placement and the like. The invention improves the replacement and laying efficiency of the steel rail and avoids the problems of safety risk, rail smashing, track bed damage and the like caused by the traditional manual rail turning.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of the present invention in use;
FIG. 2 is a schematic view of the present invention in use;
FIG. 3 is a detailed view of the walking aid system of the present invention;
FIG. 4 is a schematic structural view of the caliper;
FIG. 5 is one of the schematic structural views at the supporting portion;
FIG. 6 is a second schematic view of the structure of the supporting portion;
in the figure, 1-vertical beam, 2-limit beam, 3-lifting hook, 4-walking track, 5-fixed flange, 6-upper beam, 7-top plate, 8-electric block, 9-triangle steel, 10-walking rubber wheel, 11-auxiliary walking leaning beam, 12-auxiliary walking wheel, 13-A type beam, 14-steel rail caliper, 14.1-connecting plate, 14.2-first connecting arm, 14.3-second connecting arm, 14.4-first connecting shaft, 14.5-spring, 14.6-third connecting arm, 14.7-fourth connecting arm, 14.8-supporting part, 14.9-rubber pad, 14.10-magnet, 15-steel rail and 16-switch.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "fixed" should be construed broadly and include, for example, fixed connections, detachable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the presence of a first feature above or below a second feature may encompass both the first and second features being in direct contact, and also may encompass both the first and second features being in contact, not being in direct contact, but rather being in contact with another feature therebetween. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. Including a first feature being directly below and obliquely below a second feature, or simply indicating that the first feature is at a lesser elevation than the second feature, if present below, under or below the second feature.
Example one
As shown in fig. 1-3, a 25m steel rail 15 replacing and laying device for an extra-long subway tunnel comprises a replacing and laying portal frame, a travelling mechanism, an auxiliary travelling device and a hoisting system;
the replacing and laying portal frame comprises a vertical beam 1, an upper beam 6 and a limiting cross beam 2, wherein the upper beam 6 and the limiting cross beam 2 are fixed with the vertical beam 1;
the walking mechanism comprises walking rollers, the walking rollers are walking rubber wheels 10, and the walking rollers are arranged below the changing and laying portal frame; the walking rollers are placed below the ballast bed and can walk freely;
the auxiliary walking device comprises auxiliary walking wheels 12 and an auxiliary walking leaning beam 11, the auxiliary walking leaning beam 11 is vertically welded and fixed on the changing and laying portal frame, and the auxiliary walking wheels 12 can freely slide on the side of the track bed; an A-shaped cross beam 13 is arranged on the replacing and laying portal frame, and the auxiliary walking leaning beam 11 is welded with the A-shaped cross beam 13.
The hoisting system comprises a walking track 4, an electric hoist 8, a lifting hook 3, steel rail calipers 14 and a remote controller; the walking track 4 is fixed below the upper beam 6, and limiting plates are arranged at two ends of the walking track 4; the remote controller can control the electric hoist 8 to freely walk on the walking track 4, the steel rail calipers 14 are sleeved on the lifting hooks 3, and the steel rail calipers 14 are automatically locked when lifted. A switch 16 is arranged on the vertical beam 1, and the switch 16 is used for controlling the electric hoist 8 to freely walk on the walking track 4.
The invention can avoid the safety risk caused by the traditional manual rail turning and the problem that the rail 15 damages the track bed by smashing and the like in the hoisting process of the 25m steel rail 15, and ensures the safe and reliable hoisting, and has simple tool and easy operation.
Example two
For the preferred connection of the vertical beams 1, the trestle further comprises a top plate 7 arranged on the upper beam 6. Set up mounting flange 5 on roof 7, erect roof beam 1 and be connected with roof 7 through mounting flange 5. And triangular steel 9 is arranged between the top plate 7 and the vertical beam 1, so that the strength is increased.
EXAMPLE III
The ends of the upper beam 6 and the limiting cross beam 2 are fixed with the vertical beam 1. The limiting cross beam 2 is arranged in the middle of the vertical beam 1. The function of strengthening the structural strength is achieved.
The vertical beams 1 are inverted V-shaped after being fixed, one upper beam 6 is correspondingly provided with two groups of vertical beams 1, and the vertical beams 1 are arranged on two sides of the upper beam 6.
The vertical beam 1 is fixed with a top plate 7 arranged on an upper beam 6 through a fixed flange 5, and the fixed flange 5 is welded on the top plate 7.
Through V type structure, flange joint etc. when increasing intensity, the space of whole structure reduces, is convenient for install and transport.
Example four
The two sets of the replacing and laying devices are arranged, and the structures of the replacing and laying devices are consistent; two sets of replacing and paving devices are placed above the poured secondary ballast bed; two sets of the replacing and laying devices are respectively stopped at two sides of the 25m steel rail 15.
The two sets of the replacing and laying devices are respectively stopped at the position which is 5.5m-6.5m away from the end of the 25m steel rail 15.
The electric power of the hoisting system of the replacing and laying device comes from the steel rail 15 transportation flat car, and the steel rail 15 transportation flat car is parked behind the replacing and laying device.
And the hoisting is more stable through two sets of replacing and laying devices. And the steel rail 15 is taken into consideration for transporting the flat car, so that the problem of power source of the hoisting system of the replacing and laying device is solved.
EXAMPLE five
A use method of a replacing and paving device comprises the steps that the replacing and paving device is used; the method comprises the following steps:
the method comprises the following steps: firstly, placing A, B two sets of changing and paving devices above a poured secondary ballast bed;
step two: the steel rail 15 transportation flat car is parked behind the changing and paving device, power output is provided for a lifting system of the changing and paving device, then two sets of changing and paving devices are pushed to cross the transportation flat car manually, in the pushing process of the changing and paving device, the auxiliary traveling wheels 12 can effectively avoid friction with the side of the track bed, and the traveling lubricating coefficient of the device is improved. The two sets of replacing and laying devices are respectively parked at the position 5.5-6.5 m (6m) away from the end head of the steel rail 15;
step three: the lifting hook 3 is controlled to descend to the position of the steel rail 15 through the remote controller of the electric hoist 8, the steel rail calipers 14 are clamped at the rail waist of the steel rail 15, the lifting of the lifting hook 3 is controlled through the remote controller, and the steel rail calipers 14 are automatically locked along with the lifting of the lifting hook 3;
step four: when the steel rail 15 is lifted to a set height, after the two rail replacing devices are pushed to the operation position through manpower, the remote controller controls the steel rail 15 to descend, align, place and the like.
Step five: after the steel rail 15 is placed, fastening accessories of the steel rail 15 are fixed, and the steel rail 15 transportation flat car and the replacing and paving device are continuously pushed forwards;
step six: and repeating the first step and the fifth step to carry out the next section of replacing and paving 25 meters of steel rail 15.
Can accomplish subway line daily equal 500 meters rail 15 trades and paves work through this device, improve rail 15 and trade and pave efficiency, avoid the safety risk that traditional manual work turned over the rail and caused and rail 15 smashes and injures railway roadbed scheduling problem.
Since the method described in this embodiment is a method for implementing the rail 15 replacement device of the present invention, the method described in this embodiment of the present invention can be understood by those skilled in the art as to the specific implementation manner and various modifications of this embodiment, and therefore, how to implement the method in this embodiment of the present invention will not be described in detail herein. The person skilled in the art will also be able to carry out the methods of the embodiments of the invention without departing from the scope of the invention.
EXAMPLE six
As shown in fig. 4, the rail caliper 14 used in the rail 15 replacing and laying device comprises a connecting plate 14.1, a first connecting arm 14.2, a second connecting arm 14.3, a third connecting arm 14.6, a fourth connecting arm 14.7 and a supporting part 14.8, wherein the supporting part 14.8 comprises a first supporting part 14.8 and a second supporting part 14.8;
a connecting hole for connecting the lifting hook 3 is formed in the connecting plate 14.1; the connecting plate 14.1, the first connecting arm 14.2 and the second connecting arm 14.3 are connected by a first rivet; the third connecting arm 14.6 and the fourth connecting arm 14.7 are connected by a second rivet; a first supporting part 14.8 is arranged at the lower end of the third connecting arm 14.6, and a second supporting part 14.8 is arranged at the lower end of the fourth connecting arm 14.7;
the first connecting arm 14.2 is consistent with the second connecting arm 14.3 in shape, and the third connecting arm 14.6 is consistent with the fourth connecting arm 14.7 in shape; the first connecting arm 14.2 and the fourth connecting arm 14.7 are connected through a first connecting shaft 14.4, and the second connecting arm 14.3 and the fourth connecting arm 14.7 are connected through a second connecting shaft; the first connecting shaft 14.4 is connected to the second connecting shaft by a spring 14.5.
The multi-connecting-arm structure is arranged in the embodiment, the spring 14.5 is arranged between the first connecting arm 14.2 and the second connecting arm 14.3, and shaking and vibration of the steel rail 15 on the caliper can be reduced through the action of the spring 14.5, so that derailment is avoided.
The whole caliper is also provided with a connecting plate 14.1 which is convenient to be connected with the lifting hook 3. The connecting plate 14.1 is reasonable in structural arrangement, the connecting plate is beneficial to balancing the connecting arm, the whole calipers are more stable in the hoisting or transferring process, and the hoisting safety is improved.
The third connecting arm 14.6 and the fourth connecting arm 14.7 are arranged in an L-shape; the third connecting arm 14.6 and the fourth connecting arm 14.7 are both provided with a first connecting section and a second connecting section; the first connecting section of the third connecting arm 14.6 is connected to the first connecting section of the fourth connecting arm 14.7 by a second rivet.
And the connecting structure of the rivet and the connecting shaft is adopted, so that the installation is convenient. Meanwhile, due to the arrangement of the connecting shaft, the spring 14.5 is easier to fix. The spring 14.5 can be welded directly to the connection shaft, preferably by full welding, to increase the strength of the connection.
The angle between the first and second connecting sections of the third connecting arm 14.6 is greater than 90 °; the angle between the first and second connecting sections of the fourth connecting arm 14.7 is greater than 90 °. Adopt the obtuse angle structure, than right angle or acute angle, connecting portion bearing capacity is stronger, the life of extension linking arm.
The first and second connecting sections of the third connecting arm 14.6 are of uniform cross-sectional shape. The first and second connecting sections of the fourth connecting arm 14.7 are identical in cross-sectional shape. The above-mentioned "identical" means that the body portions of the first and second connection segments do not include the connection portion.
The third connecting arm 14.6 is in this embodiment integrally formed with the first support 14.8; the fourth connecting arm 14.7 and the second support 14.8 are integrally formed.
The lower part of the first supporting part 14.8 is arranged into a circular arc shape which is convex downwards; the lower part of the second support part 14.8 is arranged in a circular arc shape protruding downwards.
The first supporting part 14.8 is used for slightly tilting upwards (the upward slight tilting angle is X, X is more than 0 degree and less than or equal to 30 degrees) at the part tightly attached to the steel rail 15; the second supporting part 14.8 is used for slightly tilting upwards (the upward slight tilting angle is Y, and Y is more than 0 degree and less than or equal to 30 degrees) at the part tightly attached to the steel rail 15.
The structure is arranged to mainly enhance the strength of the whole device.
The top of the connecting plate 14.1 is provided with a connecting hole, and the thickness of the hole wall of the connecting hole is not less than 5mm (generally not more than 60 mm).
The pore wall downside of connecting hole top sets up to the arc structure, and after lifting hook 3 hung, this arc structure and lifting hook 3's crotch part cooperation avoided only the edge of pore wall and lifting hook 3 contact, caused to rock or connecting plate 14.1 to warp.
The connecting plate 14.1 is arranged between the first connecting arm 14.2 and the second connecting arm 14.3. Through the arrangement of the parts, the structure of the whole caliper is more reasonable, and the stress capacity is stronger.
The spring 14.5 can be welded to the connecting shaft (including the first connecting shaft 14.4 and the second connecting shaft) or can be fixed to the connecting shaft by a mounting plate. The both ends of spring 14.5 are provided with foraminiferous mounting panel respectively, and the mounting panel cover is spacing through the cotter pin after on the connecting axle, avoids the mounting panel roll-off.
The springs 14.5 are arranged in two, the connecting ends of the connecting shafts are provided with the springs 14.5, so that the two sides of the connecting shafts are prevented from being stressed unevenly, and the balance performance is stronger.
As shown in fig. 5 and 6, in the present embodiment, a rubber pad 14.9 is provided at a portion of the support portion 14.8 to be in contact with the rail 15. The supporting portion 14.8 is provided with a mounting groove, and the rubber pad 14.9 is fixedly mounted (for example, adhered) in the mounting groove. Through the effect of rubber pad 14.9, increased frictional force, can make rail 15 hoist and mount more steadily, be difficult to drop.
The rubber pad 14.9 is a flat pad, the top of the flat pad is 1-3mm (for example, 2mm) higher than the supporting surface of the supporting part 14.8, when the rail 15 is clamped, the rail 15 presses the rubber pad 14.9, and the friction force and the stability are increased.
Magnets 14.10, preferably neodymium iron boron magnets 14.10, are provided on the third and fourth support arms. During or when the third connecting arm 14.6 and the fourth connecting arm 14.7 clamp the steel rail 15, the magnet 14.10 adsorbs the steel rail 15, and the connection stability is improved.
Magnets 14.10 are provided on the back of the third and fourth support arms as shown in figure 6.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention. 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, it should be noted that any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a device is traded and spread to 25m rail in extra long subway tunnel which characterized in that: the device comprises a changing and laying portal frame, a travelling mechanism, an auxiliary travelling device and a hoisting system;
the replacing and laying portal frame comprises a vertical beam, an upper beam and a limiting cross beam, wherein the upper beam and the limiting cross beam are fixed with the vertical beam;
the travelling mechanism comprises a travelling roller, and the travelling roller is arranged below the changing and laying portal frame; the walking rollers are placed below the ballast bed and can walk freely;
the auxiliary walking device comprises auxiliary walking wheels and an auxiliary walking leaning beam, the auxiliary walking leaning beam is welded and fixed on the changing and laying portal frame, and the auxiliary walking wheels can freely slide on the side of the track bed;
the hoisting system comprises a walking track, an electric hoist, a lifting hook, steel rail calipers and a remote controller; the walking track is fixed below the upper beam, and limiting plates are arranged at two ends of the walking track; the remote controller can control the electric hoist to freely walk on the walking track, and the steel rail calipers are sleeved on the lifting hooks.
2. The 25m steel rail replacing and paving device for the extra-long subway tunnel according to claim 1, characterized in that: the shop changing portal frame further comprises a top plate arranged on the upper beam.
3. The 25m steel rail replacing and paving device for the extra-long subway tunnel according to claim 2, characterized in that: the top plate is provided with a fixed flange, and the vertical beam is connected with the top plate through the fixed flange.
4. The 25m steel rail replacing and paving device for the extra-long subway tunnel according to claim 1, characterized in that: the ends of the upper beam and the limiting beam are fixed with the vertical beam.
5. The 25m steel rail replacing and paving device for the extra-long subway tunnel according to claim 1, characterized in that: the limiting cross beam is arranged in the middle of the vertical beam.
6. The 25m steel rail replacing and paving device for the extra-long subway tunnel according to claim 4, characterized in that: the vertical beams are inverted V-shaped after being fixed, one upper beam is correspondingly provided with two groups of vertical beams, and the vertical beams are arranged on two sides of the upper beam.
7. The 25m steel rail replacing and paving device for the extra-long subway tunnel according to claim 5, characterized in that: the vertical beam is fixed with a top plate arranged on the upper beam through a fixing flange, and the fixing flange is welded on the top plate.
8. The 25m steel rail replacing and paving device for the extra-long subway tunnel according to claim 1, characterized in that: the two sets of the replacing and laying devices are arranged, and the structures of the replacing and laying devices are consistent; two sets of replacing and paving devices are placed above the poured secondary ballast bed; the two sets of the replacing and laying devices are respectively stopped at two sides of the 25m steel rail.
9. The 25m steel rail replacing and paving device for the extra-long subway tunnel according to claim 8, characterized in that: the two sets of the replacing and laying devices are respectively stopped at the position which is 5.5m-6.5m away from the 25m steel rail end.
10. A method of using a changer, characterized in that the changer is a changer according to any one of claims 1-9; the method comprises the following steps:
the method comprises the following steps: firstly, placing A, B two sets of changing and paving devices above a poured secondary ballast bed;
step two: the steel rail transportation flat car is parked behind the replacing and paving device, power output is provided for a hoisting system of the replacing and paving device, then the two replacing and paving devices are pushed manually to cross the transportation flat car, in the pushing process of the replacing and paving device, the auxiliary travelling wheels avoid friction with the side of the track bed, and the two replacing and paving devices are respectively parked at the positions 5.5-6.5 m away from the end of the steel rail;
step three: the lifting hook is controlled by the remote controller of the electric hoist to descend to the position of the steel rail, the calipers of the steel rail are clamped at the rail web of the steel rail, and the lifting hook is controlled by the remote controller to lift;
step four: when the steel rail is lifted to a set height, two sets of rail replacing devices are pushed to the operation position, and the remote controller is used for controlling the steel rail to descend, align, place and the like;
step five: and after the steel rail is placed, fixing the steel rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010562901.5A CN111747308A (en) | 2020-06-19 | 2020-06-19 | 25m steel rail replacing and laying device for extra-long subway tunnel and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010562901.5A CN111747308A (en) | 2020-06-19 | 2020-06-19 | 25m steel rail replacing and laying device for extra-long subway tunnel and using method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111747308A true CN111747308A (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010562901.5A Pending CN111747308A (en) | 2020-06-19 | 2020-06-19 | 25m steel rail replacing and laying device for extra-long subway tunnel and using method |
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| CN (1) | CN111747308A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113026451A (en) * | 2020-12-22 | 2021-06-25 | 中铁五局集团第六工程有限责任公司 | Quick rail lifting device |
-
2020
- 2020-06-19 CN CN202010562901.5A patent/CN111747308A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113026451A (en) * | 2020-12-22 | 2021-06-25 | 中铁五局集团第六工程有限责任公司 | Quick rail lifting device |
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