CN214112345U - High-speed railway trackless constant tension carrier cable erecting device - Google Patents

Abstract

The utility model belongs to the technical field of the high-speed railway contact net construction, a high-speed railway trackless constant tension carrier cable frame work device is provided, including carrier cable stringing car (1), be equipped with tensioner (2) on carrier cable stringing car (1), the both sides of tensioner (2) are equipped with hydraulic pressure pay off rack (3) and davit subassembly respectively, be equipped with carrier cable drum (4) on hydraulic pressure pay off rack (3), carrier cable (5) on carrier cable drum (4) hang by the davit subassembly after tensioner (2). The utility model discloses in, catenary trolley wire barrow and tensioner cooperation can be in the track railway roadbed of not laying the rail high-speed railway contact net catenary set up, become the rail operation frame and establish to trackless catenary trolley wire barrow and erect, have broken away from the current situation that receives the unit before the station and lay the rail progress restriction, have improved the efficiency of construction, have shortened construction cycle.

Description

High-speed railway trackless constant tension carrier cable erecting device

Technical Field

The utility model belongs to the technical field of the construction of high-speed railway contact net, a messenger wire handing equipment is related to, especially relate to a high-speed railway trackless permanent tension messenger wire handing equipment.

Background

The high-speed rail running speed is 250 km/h-350 km/h, in order to meet the high-speed rail running requirement, the requirement of flatness of 0.1mm/1m is required to be achieved after the contact line is erected, and the contact line is suspended on the catenary through the integral dropper, so that the catenary is the basis for realizing the smoothness of the contact line and is an extremely important component of a high-speed rail contact network.

One of the existing methods for erecting the catenary is to use rail-mounted stringing vehicles such as pramipexole, tesmak, and falcon FX-5 to erect the catenary under the condition that the track is paved. In addition, under the condition of no track laying, the carrier cable is manually erected, and the carrier cable is completely pulled out of the wire coil by means of manually shouldering.

The stringing mode of the overhead line operation vehicle for the contact network is that a rail travelling crane (self-wheel operation equipment) is adopted to erect a catenary of a high-speed rail, and the rail travelling crane must run on a steel rail paved in place by a pre-station unit, and belongs to the technology of rail operation vehicle erection. The steel rail is laid as the last process of a unit before a station, and is generally laid for several months before a high-speed railway is opened, so that the laying time is relatively late. The construction unit after the station can use the steel rail to erect the catenary cable for a very short time, the erection of the catenary cable is only the first process for the unit after the station, and a plurality of subsequent processes such as contact line erection, dropper installation, suspension adjustment and the like are carried out after the catenary cable erection, so that the construction progress of the construction unit after the station is severely limited by the track laying progress of the unit before the station, and the erection progress of the catenary cable and the contact line cannot be guaranteed, and the construction period cannot be guaranteed. In addition, after the unit rail before the station is laid, the unit rail is preferably used for material transportation of the unit rail-mounted vehicle, or the rail needs to be accurately adjusted to be not allowed to be used by the unit after the station to carry out rail contact net stringing operation by using the rail. Therefore, the rail-guided operation frame line technology has the problem that resources are occupied by competing for steel rails with units in front of the station, and the field coordination workload is very large.

And the labor intensity of the manual stringing mode is very high. Each anchor section of the high-speed rail contact network is 1.5km, one anchor section is coiled, the weight of each coiled wire is about 2 tons, a carrier cable can be pulled to move forwards by pulling wires of 20-30 persons in the manual wire erecting process, a line with the length of 1.5 kilometers from a starting point to a terminal point, a worker pulling out the carrier cable from one anchor section manually can sweat as rain, if 4-6 anchor sections are erected manually in one day, the worker tends to be exhausted, a project section tends to have hundreds of anchor sections, and the labor intensity of the worker is extremely high by adopting the method for erecting the carrier cable manually. Meanwhile, the manual stringing mode has low operating efficiency, and can cause damage to the threads of the carrier cables and influence the construction quality. Under the manual stringing mode, the carrier cable can inevitably fall to the ground, and the surface of the cable is damaged due to the friction between the cable and the ground when the cable moves.

Therefore, in order to solve the problems, the utility model provides a high-speed railway trackless constant tension carrier cable erection device.

Disclosure of Invention

In view of the above disadvantages of the prior art, an object of the present invention is to provide a trackless constant-tension catenary erecting device for a high-speed rail, which is used to solve the technical problems that in the prior art, the catenary erecting mode using a catenary stringing operation vehicle depends on laid steel rails, is restricted by the track laying progress of a pre-station unit, needs to compete with the pre-station unit for occupying time resources of the rails, and the catenary erecting mode using manual stringing has high labor intensity, low working efficiency and is prone to damage the catenary.

In order to achieve the above and other related objects, the present invention provides a technology for erecting a trackless constant-tension catenary of a high-speed rail, wherein the catenary is erected on a ballastless track bed of the high-speed rail by a catenary stringing vehicle, and the technology mainly comprises the following steps:

s1, preparing stringing, namely fixing a tensioner, a hydraulic pay-off rack and a carrier cable wire coil on a carrier cable stringing vehicle;

s2, carrying out anchor lifting on a carrier cable;

s3, erecting a carrier cable, after the anchor lifting is finished, pulling back a tensioner, and driving the carrier cable stringing vehicle to the anchoring direction to erect the carrier cable;

s4, the carrier cable falls into an anchor;

s5, filling in construction records;

preferably, in S1, the preparation of the stringing further includes the following steps:

(1) a carrier cable stringing construction scheme is compiled, and erecting personnel are trained;

(2) checking the previous process of the stringing area, and checking whether the assembly of the support, the stay wire and the compensation device are finished and meet the technical standard;

(3) according to the construction scheme, checking whether the number and the length of the installed wire coil are consistent with those of a construction anchor section, and checking the interference condition of the stringing operation construction range by the external environment and the cantilever reinforcing condition.

Preferably, in S2, the method for anchoring the catenary mainly comprises the following steps:

the method comprises the following steps: before the anchor is lifted, confirming that a carrier cable balance weight reaches the design height, and reliably connecting a balance weight string with a ratchet wheel frame by using an iron wire;

step two: a person who takes off the anchor puts on the pole, the person who is matched with the ladder car delivers the small wheel compensation rope to the person who is on the ladder car, and whether the ratchet wheel compensation rope is arranged neatly or not is checked, and the phenomenon of wrong grooves exists or not;

step three: the carrier cable terminal passes through a fixed pulley on a suspension arm of a carrier cable stringing vehicle after passing through a tensioner, and an anchor clamp of the carrier cable terminal is connected with a composite insulator and then connected with a compensating rope by an anchor worker;

step four: and (5) the anchor person descends the rod, and the anchoring is completed.

Preferably, in the step S3, the stringing tension of the tensioner in the retracting process of the tensioner is 8 to 10KN, the stringing speed of the catenary stringing vehicle is 3 to 5Km/h, the distance between the ladder vehicle and the boom of the catenary suspended by the catenary stringing vehicle is 2 to 3m, and the catenary is suspended to the end of the cantilever by using a nylon rope and a pulley when the ladder vehicle runs to a suspension point.

Preferably, in S3, the stringing tension of the tensioner during the haul-back of the tensioner is 8KN, and the stringing speed of the catenary stringing car is 3 Km/h.

Preferably, in S4, the messenger wire drop anchor mainly includes the following steps:

the method comprises the following steps: before the anchor falls, the compensation device and the balance weight are installed, and the balance weight is lifted to a certain height by a chain hoist;

step two: an operator connects one end of the lever block with a balance pulley by a steel wire sleeve, the other end of the lever block is connected with a cable wire by a wire tightener, the lever block is shaken to enable the auxiliary cable of the lever block to be stressed, the tension of the tensioner is unloaded, the lever block is continuously tightened until a weight at the anchor lifting and falling positions acts simultaneously, the gap between a stop piece of a ratchet wheel and the ratchet wheel is 20mm, the position of the broken cable is measured to be marked, the broken cable is checked again and then is taken as a return end, and a compensation device is connected;

step three: loosening the lever block, taking down the tightener and completing anchor dropping.

The utility model provides a high-speed railway trackless constant tension carrier cable erecting device, includes carrier cable stringing car, be equipped with the tensioner on the carrier cable stringing car, the both sides of tensioner are equipped with hydraulic pressure pay off rack and davit subassembly respectively, be equipped with the carrier cable drum on the hydraulic pressure pay off rack, the carrier cable on the carrier cable drum is hung by the davit subassembly after the tensioner.

Preferably, the davit subassembly includes the base, the base sets up on carrier cable stringing car, be fixed with the bracing piece on the base, the tip swivelling joint of bracing piece has the davit, the top of davit is equipped with the fixed pulley.

Preferably, the catenary is suspended by a fixed pulley on the suspension arm after passing through the tensioner.

Preferably, the top of the suspension arm is connected with a hook.

As described above, the high-speed rail trackless constant-tension catenary erection technology and the high-speed rail trackless constant-tension catenary erection device have the following beneficial effects:

1. the utility model discloses in, catenary trolley wire stringing car sets up with the tensioner cooperation high-speed railway contact net catenary on the track railway roadbed of not laying the rail, becomes that the rail operation frame sets up to trackless catenary trolley wire stringing car, has broken away from the current situation of receiving the unit to lay the rail progress restriction before the station, has improved the efficiency of construction, has shortened construction cycle.

2. The utility model discloses in, high-speed railway trackless constant tension carrier cable erects technique and has rail constant tension stringing technique and can play better complementary effect. Under the conditions of short construction period, delayed track laying progress and less time and resource allocation occupied by tracks, the method is used as a beneficial supplement of a track constant tension stringing mode, and the problem of delayed stringing operation progress caused under the condition of short construction period is greatly relieved. Plays a great role in improving efficiency, saving labor and improving construction quality.

Drawings

Fig. 1 shows a schematic representation of the mooring of a catenary.

Fig. 2 shows a schematic diagram of carrier cable erection.

Fig. 3 shows a schematic of a messenger drop anchor.

Fig. 4 shows a schematic diagram of a catenary stringing vehicle.

Fig. 5 shows a schematic of power transmission system a and power transmission system B.

Fig. 6 shows a schematic diagram of a catenary trolley track retrofit.

Description of the element reference numerals

1-carrier cable stringing vehicle, 2-tension machine, 3-pay-off rack, 4-carrier cable reel, 5-carrier cable, 6-base, 7-support rod, 8-suspension arm, 9-fixed pulley, 10-hook, 11-ladder vehicle, 12-automatic translation device, 12.1-hydraulic oil cylinder, 12.2-telescopic shaft, 12.3-translation guide wheel, 13-alarm device, 14-automatic guide anti-drop device, 14.1-telescopic hydraulic cylinder, 14.2-guide wheel, 15-automatic engine, 16-gearbox, 17-power takeoff, 18-hydraulic gear oil pump, 19-multi-way reversing valve, 20-hydraulic motor, 21-reducer, 22-hub, 23-wheel, 24-special lengthening device, 24.1-bowl-shaped extension, 24.2-through hole, 25-existing rear axle, 26-brake.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 3. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Example 1

Referring to fig. 1-3, the invention provides a technology for erecting a trackless constant-tension catenary of a high-speed rail, wherein the catenary is erected on a ballastless track bed of the high-speed rail by a catenary stringing vehicle 1, and the technology mainly comprises the following steps:

s1, preparing stringing, namely fixing a tensioner 2, a hydraulic pay-off rack 3 and a carrier cable wire coil 4 on a carrier cable stringing vehicle 1;

s2, anchoring a carrier cable 5;

s3, erecting a carrier cable 5, after the anchor lifting is finished, pulling back the tensioner 2, and driving the carrier cable stringing vehicle 1 to the lower anchor direction to erect the carrier cable 5;

s4, anchoring a carrier cable 5;

s5, filling in construction records;

when the carrier cable stringing device is used, stringing preparation is carried out before carrier cable 5 is strutted, a tensioner 2 and a hydraulic pay-off rack 3 are fixed on a carrier cable stringing vehicle 1, a carrier cable reel 4 is fixed on the hydraulic pay-off rack 3, the carrier cable 5 on the carrier cable reel 4 is connected with the tensioner 2 and penetrates through the tensioner 2, constant-tension stringing of the carrier cable 5 is realized through the tensioner 2, and the carrier cable 5 is suspended by a suspension arm 8 on the carrier cable stringing vehicle 1 after passing through the tensioner 2. After the preparation of the stringing is finished, the carrier cable 5 is erected on the unbanded track bed by the carrier cable stringing vehicle 1 in the stringing processes of anchoring the carrier cable 5, erecting the carrier cable 5, dropping the carrier cable 5 and the like on the high-speed railway ballastless track bed. After the erection is finished, the operation responsible person fills in a contact network section stringing plan/construction record or a contact network station stringing plan/construction record.

In this embodiment, the tensioner 2 is an SA-YZ30A tensioner, but is not limited to this type of tensioner 2, and any other tensioner 2 capable of realizing constant tension paying off of the catenary wire 5 may be used.

As a further description of the above embodiment, in S1, the preparation of the stringing further includes the following preparation:

(1) the construction scheme of the carrier cable stringing is compiled, and the erection personnel are trained to be familiar with the construction scheme before construction, so that the construction is convenient, and the construction efficiency and the safety in the construction process are improved.

(2) And (4) checking the previous process of the stringing area, and checking whether the support assembly, the stay wire and the compensation device are completely installed and meet the technical standard. Wherein, the carrier cable 5 is matched according to the anchor section by the factory and is checked for use when in on-site erection, and the carrier cable 5 cannot have broken strands or monofilament joints; the weight of the weight cluster is in accordance with the design requirement, and the construction allowable deviation is +/-1.5%; the axis of the weight limiting pipe is parallel to the axis of the weight string so as to ensure that the weight string is free up and down without clamping stagnation; when the carrier cable 5 and the contact line terminal anchoring clamp are installed, the openings of the two lug ends are downward, and the bolt penetrates from the field side to the line side.

(3) According to the construction scheme, checking whether the number and the length of the installed wire coil are consistent with those of a construction anchor section, and checking the condition that the construction range is interfered by the external environment and the condition that the cantilever is reinforced.

As a further description of the above embodiment, in said S2, the anchoring of the catenary 5 mainly comprises the following steps:

the method comprises the following steps: before the anchor is lifted, confirming that a carrier cable balance weight reaches the design height, and reliably connecting a balance weight string with a ratchet wheel frame by using an iron wire;

step two: a person who takes off the anchor puts on the rod, the person who takes off the anchor transfers the small wheel compensation rope to the person who takes off the ladder car 11 in cooperation with the person who takes off the ladder car 11, and checks whether the ratchet wheel compensation rope is arranged neatly or not and whether the wrong groove phenomenon exists or not;

step three: the end of the carrier cable 5 passes through a fixed pulley 9 on a suspension arm 8 of a carrier cable stringing vehicle 1 after passing through a tensioner 2, and an anchor person connects a carrier cable end anchoring wire clamp with a composite insulator and then connects the carrier cable end anchoring wire clamp with a compensating rope;

step four: and (5) the anchor person descends the rod, and the anchoring is completed.

In this embodiment, the connection between the weight string and the ratchet wheel compensation device, the arrangement of the compensation rope, and the connection between the messenger wire terminal anchor clamp and the compensation rope after the connection with the composite insulator are all in the prior art, and those skilled in the art can know the connection according to their own knowledge and common general knowledge, and therefore, further description is not provided in the present invention.

As a further description of the above embodiment, in S3, the specific method for erecting the catenary 5 is as follows: after the anchor is lifted, the tensioner 2 is pulled back, the stringing tension of the tensioner 2 is 8KN in the pulling back process of the tensioner 2, and the carrier cable stringing vehicle 1 runs towards the lower anchor direction at the stringing speed of 3 Km/h. In the process, a distance of 2-3 m is kept between the ladder car 11 and a suspension arm 8 for suspending the carrier cable 5 of the carrier cable stringing car 1. When the ladder car 11 runs to a suspension point, the catenary 5 is suspended to the end part of the cantilever (between a catenary seat and a sleeve double lug) by adopting the nylon rope and the pulley, and then the catenary 5 at the next suspension point is suspended continuously forwards. After the suspension of the carrier cable 5 is completed, the carrier cable 5 is anchored, thereby completing the erection of the carrier cable 5.

In the embodiment, in the process of erecting the carrier cable 5, a commander keeps contact with an anchor lifting person at any time, and the change condition of the anchor lifting position is mastered in real time.

As a further description of the above embodiment, in S4, the anchoring of the catenary 5 mainly comprises the following steps:

the method comprises the following steps: before the anchor falls, the compensation device and the balance weight are installed, and the balance weight is lifted to a certain height by a chain hoist;

step two: an operator connects one end of the lever block with a balance pulley by a steel wire sleeve, the other end of the lever block is connected with a cable wire by a wire tightener, the lever block is shaken to enable the auxiliary cable of the lever block to be stressed, the tension of the tensioner 2 is unloaded, the lever block is continuously tightened until a weight at the anchor lifting position and the anchor falling position act simultaneously, the gap between a stop piece of a ratchet wheel and the ratchet wheel is 20mm, the position of the broken cable is measured and marked, the broken cable is checked again and then is used as a return end, and a compensation device is connected;

step three: loosening the lever block, taking down the tightener and completing anchor dropping.

In this embodiment, the connection between the compensation device, the weight, the lever block, the balance pulley, and the cable all belong to the prior art, and the connection between the compensation device, the weight, the lever block, the balance pulley, and the cable is not described further in this embodiment.

In conclusion, the catenary erection technology of the high-speed rail trackless catenary trolley line set is used for erecting a catenary of a high-speed rail contact network by arranging the trackless constant-tension trolley line set on a non-track-laying line, so that the dependence of catenary erection on the track laying progress of a unit in front of a station in the prior art is eliminated, the restriction degree of the track laying progress on the stringing operation is relieved, a track catenary operation frame is changed into the trackless catenary trolley line set erection, the construction efficiency is improved, and the construction period is shortened. Meanwhile, the high-speed rail trackless constant-tension carrier cable erection technology and the rail constant-tension stringing technology can play a better complementary role. Under the conditions of short construction period, delayed track laying progress and less time and resource allocation occupied by tracks, the method is used as a beneficial supplement of a track constant tension stringing mode, and the problem of delayed stringing operation progress caused under the condition of short construction period is greatly relieved. Plays a great role in improving efficiency, saving labor and improving construction quality.

Example 2

As shown in fig. 4-6, a trackless constant-tension carrier cable erecting device for a high-speed rail comprises a carrier cable stringing vehicle 1, wherein a tensioner 2 is arranged on the carrier cable stringing vehicle 1, a hydraulic pay-off rack 3 and a suspension arm assembly are respectively arranged on two sides of the tensioner 2, a carrier cable wire coil 4 is arranged on the hydraulic pay-off rack 3, the suspension arm assembly comprises a base 6, the base 6 is arranged on the carrier cable stringing vehicle 1, a support rod 7 is fixed on the base 6, the end part of the support rod 7 is rotatably connected with a suspension arm 8, and the top of the suspension arm 8 is provided with a fixed pulley 9. The carrier cable 5 passes through the tension machine 2 and then is suspended by a fixed pulley 9 on a suspension arm 8. The top of the suspension arm 8 is connected with a hook 10.

When the embodiment is used, the carrier cable wire coil 4 is placed on the hydraulic pay-off rack 3, so that the carrier cable wire coil 4 can rotate conveniently to pay off the carrier cable 5. The tension machine 2 can provide constant tension of 0-8 t and adjust the tension steplessly. The tension machine 2 is connected with the carrier cable 5 to ensure constant tension paying off of the carrier cable 5, so that constant tension paying off is carried out in the process of stringing the carrier cable 5, and the erection quality of the carrier cable 5 is further ensured. Meanwhile, the arrangement of the suspension arm 8 and the fixed pulley 9 on the suspension arm 8 can change the running direction of the carrier cable 5, so that the carrier cable 5 can reach the erection height. The arrangement of the fixed pulley 9 can also reduce the friction between the carrier cable 5 and the suspension arm 8, so as to achieve the effect of protecting the carrier cable 5.

According to the size of a straight line section of a CRTS I type double-block ballastless track bed, the requirement of the track width of a carrier cable stringing vehicle 1 is 2800 mm. Through the investigation on various vehicle chassis in the market, it is found that no mature rear axle with proper wheel track (2800 mm is required) can be selected in China, so that the existing rear axle 25 is adopted in the embodiment for modification, and the specific modification method is as follows: the hub 22 is reversely arranged on a wheel 23, then a set of special lengthening devices 24 are respectively welded on the opposite surfaces of the two hubs 22, the opposite surfaces of the two special lengthening devices 24 are respectively connected with a brake 26, and the two brakes 26 are connected through the existing rear axle 25, thereby solving the problem of overlarge wheel distance. The special lengthening device 24 comprises two bowl-shaped lengthening pieces 24.1, the open ends of the two bowl-shaped lengthening pieces 24.1 are welded together, and a plurality of through holes 24.2 are uniformly formed in each bowl-shaped lengthening piece 24.1 along the circumferential direction of the bowl-shaped lengthening piece. The track width of the modified carrier cable stringing vehicle 1 reaches 2800mm, and the requirement of passing on a CRTS I type double-block ballastless track bed is met. According to different wheel tracks of different existing rear axles 25, special lengthening devices 24 with different specifications are adopted for modification, so that the modified carrier cable stringing vehicle 1 meets the requirement of running on ballastless tracks without track laying.

As a further description of the above embodiment, two sets of automatic guiding and lane-dropping prevention devices 14 symmetrically arranged are respectively arranged on two sides of the catenary trolley 1, and four sets of automatic translation devices 12 distributed in a square shape are arranged on the lower surface of the trolley body. The automatic guiding and lane-falling preventing device 14 is arranged on the outer side of the catenary stringing vehicle 1 and symmetrically arranged about the horizontal central line of the catenary stringing vehicle 1, the automatic guiding and lane-falling preventing device 14 comprises a telescopic hydraulic cylinder 14.1, an output shaft of the telescopic hydraulic cylinder 14.1 is connected with a guide wheel 14.2, and the guide wheel 14.2 is in rolling contact with the side face of the track plate. The automatic translation device 12 comprises two translation slide rails (not shown in the figure), the translation slide rails are detachably arranged on the carrier cable stringing car 1, the automatic translation device 12 further comprises a hydraulic oil cylinder 12.1, the hydraulic oil cylinder 12.1 is fixed on the lower surface of the carrier cable stringing car 1, the output end of the hydraulic oil cylinder 12.1 is connected with a telescopic shaft 12.2, and the lower end of the telescopic shaft 12.2 is connected with a translation guide wheel 12.3. The automatic translation means 12 are driven by a power transmission system.

In the embodiment, before the catenary trolley 1 runs, the telescopic hydraulic cylinder 14.1 is adjusted, so that the position of the guide wheel 14.2 is adjusted, the guide wheel 14.2 is in rolling contact with the side surface of the track plate, the guide wheel 14.2 is ensured to be in rolling contact with the side surface of the track plate all the time in the running process of the catenary trolley 1, and the trolley is prevented from deviating or falling off the track.

In this embodiment, during the on-site construction, there are a lot of situations of cross construction with the unit before the station, and it is avoided to need to meet with the equipment or vehicle of the unit before the station, and the setting of automatic translation device 12 can be with the safe convenient translation of transport vechicle to adjacent circuit track board, satisfies the requirement that the meeting was dodged or the construction of changing lanes. When the meeting is avoided, the method mainly comprises the following steps:

the method comprises the following steps: two carrier cable stringing cars 1 are detached from the translation slide rails, are padded between the upper track bed and the lower track bed, are adjusted to a proper distance, and are padded with square timbers to keep stable;

step two: extending a telescopic shaft 12.2 of the automatic translation device 12, enabling 4 translation guide wheels 12.3 to be firmly attached to the translation slide rail and uniformly lift, enabling wheels 23 of the catenary stringing car 1 to be 10cm away from the ground, and then operating the translation guide wheels 12.3 to rotate to drive the whole catenary stringing car 1 to move to an adjacent line along the translation slide rail;

step three: after the catenary stringing vehicle 1 moves to a preset position, the telescopic shaft 12.2 is recovered, the translation guide wheel 12.3 is separated from the translation slide rail, the vehicle falls to the preset position, translation is completed, and the two translation slide rails are installed back to the catenary stringing vehicle 1.

As a further description of the above embodiment, the power transmission system includes a power transmission system a and a power transmission system B. The power transmission system A controls the hydraulic oil cylinder 12.1 to stretch and retract, and the power transmission system B controls the translation guide wheel 12.3 to move. The power transmission system A and the power transmission system B both belong to the prior art, both utilize a hydraulic power system of a transport vehicle, and are respectively connected with a hydraulic motor 20 for controlling the hydraulic oil cylinder 12.1 to stretch and a hydraulic motor 20 for controlling the translation guide wheel 12.3 to move through a multi-way reversing valve 19, and the power transmission system A and the power transmission system B share an automatic engine 15, a gearbox 16, a power takeoff 17, a hydraulic gear oil pump 18 and a multi-way reversing valve 19. The power transmission system A comprises an automatic engine 15, a gearbox 16, a power takeoff 17, a hydraulic gear oil pump 18, a multi-way directional valve 19 and a hydraulic oil cylinder 12.1 which are sequentially connected, and the power transmission system B comprises an automatic engine 15, a gearbox 16, a power takeoff 17, a hydraulic gear oil pump 18, a multi-way directional valve 19, a hydraulic motor 20, a speed reducer 21 and a translation guide wheel 12.3 which are sequentially connected. The specific connection method is known to those skilled in the art according to the prior art and their own knowledge, and further description is not repeated in this embodiment.

As a further description of the above embodiment, the catenary trolley 1 is provided with the alarm device 13, and the alarm device 13 is mainly turned on by an operator through a switch before the trolley starts to run or is hoisted at night, so as to remind surrounding operators of starting operation and prevent mechanical injury accidents.

In conclusion, the catenary trolley and the tensioner are matched on a track bed which is not paved with rails to erect the catenary of a high-speed rail contact network, and the track-changing operation frame is set as the trackless catenary trolley to erect, so that the current situation of being limited by the rail paving progress of a unit before a station is eliminated, the construction efficiency is improved, and the construction period is shortened. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (4)

1. The utility model provides a high-speed railway trackless constant tension carrier cable frame work device, includes carrier cable overhead line car (1), its characterized in that: the carrier cable stringing vehicle is characterized in that a tensioner (2) is arranged on the carrier cable stringing vehicle (1), a hydraulic pay-off rack (3) and a suspension arm assembly are respectively arranged on two sides of the tensioner (2), a carrier cable wire coil (4) is arranged on the hydraulic pay-off rack (3), and a carrier cable (5) on the carrier cable wire coil (4) is suspended by the suspension arm assembly after passing through the tensioner (2).

2. The high-speed rail trackless constant-tension catenary erection device of claim 1, characterized in that: the suspension arm assembly comprises a base (6), the base (6) is arranged on the carrier cable stringing vehicle (1), a support rod (7) is fixed on the base (6), the end part of the support rod (7) is rotatably connected with a suspension arm (8), and the top of the suspension arm (8) is provided with a fixed pulley (9).

3. The high-speed rail trackless constant-tension catenary erection device of claim 2, characterized in that: the carrier cable (5) is suspended by a fixed pulley (9) on the suspension arm (8) after passing through the tension machine (2).

4. The high-speed rail trackless constant-tension catenary erection device of claim 2, characterized in that: the top of the suspension arm (8) is connected with a hook (10).

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