CN212245717U

CN212245717U - Constant tension wire barrow of contact net

Info

Publication number: CN212245717U
Application number: CN202021083339.XU
Authority: CN
Inventors: 刘桐; 任增堂; 苗俊波; 袁英杰; 陈桀; 李剑锋; 张柏滔; 唐立新; 高越; 崔达; 周辰彦
Original assignee: Shijiazhuang Machinery Equipment Branch of China Railway Electrification Engineering Group Co Ltd
Current assignee: Shijiazhuang Machinery Equipment Branch of China Railway Electrification Engineering Group Co Ltd
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2020-12-29
Anticipated expiration: 2030-06-12

Abstract

The utility model discloses a contact net constant tension wire barrow, which comprises a wire releasing device, a guiding device, a tension applying device, a wire guiding column and a control device, wherein the wire releasing device is fixedly arranged on a road flat car, and a wire bearing sequentially passes through the wire releasing device, a slide rail device and a hydraulic oil cylinder used for enabling a support to move along the slide rail device are fixedly arranged on the road flat car, a hydraulic motor is fixedly arranged on the support, and the force applying direction of the hydraulic motor when providing tension for a winding device is opposite to the wire releasing direction of the winding device; the control device comprises a generator set and a hydraulic control assembly; the hydraulic control assembly comprises a signal control assembly, and an oil storage device, a hydraulic oil pump and an integrated valve group which are sequentially connected. The utility model discloses an degree of automation is high, and modularization, size are little, can guarantee that tension is invariable and according to actual conditions automatically regulated tension in the course of the work, guarantee the unwrapping wire quality, long service life, easy dismounting, the direction is stable, and energy saving and emission reduction is less to environmental pollution, is applicable to all contact net wire barrow.

Description

Constant tension wire barrow of contact net

Technical Field

The utility model belongs to the technical field of railway bearing guide erects, a contact net wire barrow is related to, specifically speaking is a contact net permanent tension wire barrow.

Background

In the process of construction or maintenance of the electric railway, the tension of the contact wires on the contact net plays an extremely important role in maintaining the space form of the contact net. The bearing wire is a contact wire and a bearing cable which are erected above a railway line, and during construction, the bearing wire needs to be arranged on a cantilever of a contact net pole and keeps certain tension. When setting up the wire, construct through the contact net operation car, because hold the wire before setting up, need twine on the pay off rack, consequently, can make and hold the wire and become crooked and produce the radian, and the existence of holding wire self radian can make it produce intermittent type ripple, forms arc discharge, can cause the damage to electric locomotive, has the potential safety hazard. Therefore, the wire fed from the bobbin needs to be straightened by applying tension to the wire through the tension applying device, so that the safety of power transmission is ensured.

Structural shortcoming of pay-off car among the prior art:

firstly, a bearing wire in the prior art enters a tension applying device after coming out of a winding device, because the winding device and the tension applying device are both fixed on a road flatcar and cannot move, the winding device is wide, and two edges have a certain distance, when the wire is unwound, the bearing wire at the two edges of the winding device cannot align with the tension applying device, after the bearing wire is discharged, the bearing wire between the winding device and the tension applying device can generate a certain inclination angle, and the bearing wire cannot vertically enter the tension applying device, so that serious abrasion is generated between the bearing wires, the quality of the bearing wire is reduced, and potential safety hazards are caused;

secondly, before the winding device in the prior art enters the tension applying device, because the rotating shaft does not have resistance of self weight and other resistance when rotating, the winding device only rotates by the tensile force generated by the tension applying device, along with the release of the bearing wire on the winding device, the weight is gradually reduced, the self rotating resistance of the winding device is gradually reduced, the phenomena of over-fast rotation and over-fast wire release can be generated, so that the tension value of the bearing wire between the winding device and the tension applying device is gradually reduced, that is, the bearing wire wound on the tension applying device is gradually loosened, the phenomenon that the bearing wire from the tension applying device contacts the ground and a steel rail due to insufficient tension is often generated, the stability and elasticity of a contact net structure are seriously reduced, and in the prior art, the rotating shaft is usually made to generate resistance by using mechanical modes such as a rod or a clutch and the like when releasing the wire, however, this method can only make the bearing wire generate a small tension, and cannot perform real-time monitoring and adjustment, and cannot monitor and adjust the tension of the bearing wire in real time according to the actual situation, and cannot keep the tension constant;

thirdly, the support structure among the prior art is complicated, when installing winding device, need install after dismantling whole support, wastes time and energy, and the cost of manufacture is higher. In addition, various structures for paying off in the prior art are complex in structure and overlarge in size, and once any structure of the vehicle body or the paying off is damaged, the vehicle body or the paying off structure needs to be integrally maintained, so that time and labor are wasted, and the maintenance cost is increased.

Shortcoming in the pay-off vehicle control system among the prior art:

an electro-hydraulic control system applied to a domestic constant-tension pay-off vehicle is not mature, the power of an engine is high, pollutant emission is high, the overall size is large, and various faults are easy to occur in the working process. For example: a main control motor in the hydraulic control assembly indirectly drives a plurality of hydraulic oil pumps through a transfer case, and once the transfer case serving as a power transmission junction is damaged, the whole vehicle cannot work; in addition, the control valve and the oil pipe which are communicated with the hydraulic oil pump are complicated and disorderly in arrangement, and after faults occur, the faults need to be checked one by one to carry out corresponding maintenance, which wastes time and labor; and the paying-off vehicle which is used more in China is a foreign import device, if a certain part is damaged, the part needs to be purchased by an original manufacturer, so that the time is wasted, and the maintenance cost is high.

To sum up, research and develop an intelligence, structure is exquisite, tension is invariable, and can automatic adjustment, the perfect localization of control system's barrow, is the problem of serving the solution.

SUMMERY OF THE UTILITY MODEL

For solving exist among the prior art more than not enough, the utility model aims at providing a contact net constant tension wire barrow to reach the unwrapping wire in-process and hold wire tension invariable, automatically regulated tension, guarantee the winding and hold the compactness of wire on winding device, can the purpose that the tension of automatic alignment applys device, control system are succinctly perfect, the size is smart to be reduced.

In order to achieve the above object, the utility model adopts the following technical scheme:

a constant-tension pay-off vehicle for a contact network comprises a pay-off device, a tension applying device, a wire guide column and a control device, wherein the pay-off device is fixedly arranged on a road flatcar, a wire bearing wire sequentially penetrates through the pay-off device, the pay-off device comprises a support, a rotating shaft and a winding device, the rotating shaft is rotatably connected to the support, the winding device is fixedly arranged on the rotating shaft and used for winding the wire bearing wire, a sliding rail device and a hydraulic oil cylinder used for enabling the support to move along the sliding rail device are fixedly arranged on the road flatcar, a hydraulic motor used for driving the rotating shaft to rotate and providing tension for the winding device is fixedly arranged on the support, and the force application direction of;

the hydraulic cylinder is characterized by also comprising a guide device for detecting the position of the bearing wire and providing an action signal for the hydraulic cylinder;

the control device comprises a generator set and a hydraulic control assembly; the hydraulic control assembly comprises a signal control assembly, an oil storage device, at least one hydraulic oil pump and an integrated valve group, the oil storage device, the at least one hydraulic oil pump and the integrated valve group are sequentially connected, the hydraulic oil pump is driven by a main control motor, the integrated valve group is respectively connected with a hydraulic motor, a hydraulic oil cylinder and a second hydraulic motor in a tension applying device through pipelines, and the generator set is respectively electrically connected with the main control motor and the signal control assembly through a power distribution cabinet.

As to the utility model limit: the top detachably of support is equipped with the bearing frame, the bearing frame includes upper and lower two parts of mutual lock, the pivot is passed through the bearing and is rotated and connect on the bearing frame.

As another limitation to the present invention: the slide rail device comprises two parallel U-shaped channel steels, bearing rollers and limiting blocks, the bearing rollers are fixedly arranged on two sides of the support, the limiting blocks are guided by the bearing rollers and are arranged on two sides of the support, the bearing rollers are arranged in the U-shaped channel steels and move along the length direction of the U-shaped channel steels, and the limiting blocks are in contact with the inner side surfaces of the U-shaped channel steels and are in sliding fit with lubricating agents.

As a further limitation to the present invention: the road flatcar is also fixedly provided with a guide oil pipe, the guide oil pipe comprises an oil pipe fixedly arranged on the road flatcar and an oil cylinder sleeved on the oil pipe, the part of the oil pipe positioned in the oil cylinder is provided with an oil hole, and the oil cylinder is fixedly provided with a pipeline for supplying oil to the hydraulic motor; the oil guide pipe is provided with two oil guide pipes and used for oil inlet and oil outlet of the hydraulic motor, and the outer wall of the oil cylinder is fixedly connected with the support and moves along the oil guide pipes.

As to the third limitation of the present invention: and a driving gear is fixedly arranged on an output shaft of the hydraulic motor, and a driven gear meshed with the driving gear is fixedly arranged on the rotating shaft.

As to the utility model discloses a further limit again: the guide device comprises a guide rail, a guide mechanism and a photoelectric sensor, wherein the guide mechanism is connected with the guide rail in a sliding mode through a sliding block and used for allowing a guide wire to pass through, and the photoelectric sensor is used for detecting the position of the guide mechanism.

As a further limitation to the present invention: and the first wire coil guide wheel and the second wire coil guide wheel are rotatably connected to the guide mechanism.

As a fourth limitation to the present invention: the integrated valve group comprises a plurality of electro-hydraulic proportional valves, overflow valves communicated with oil outlets of the electro-hydraulic proportional valves and three-position four-way functional valves; the control end of the electro-hydraulic proportional valve is electrically connected with the signal control assembly, and the three-position four-way energy valve is respectively connected with the hydraulic motor, the hydraulic oil cylinder and the hydraulic motor in the tension applying device through oil pipes.

As a further limitation to the present invention: the signal control assembly comprises a signal sensor, an A/D conversion module, a PLC control module and a D/A conversion module which are electrically connected in sequence; the signal sensor comprises a photoelectric sensor arranged below the guide seat of the bearing wire, an oil pressure sensor arranged at an oil outlet of the overflow valve and a tension sensor arranged on the tension disc.

Since the technical scheme is used, compared with the prior art, the utility model, the beneficial effect who gains lies in:

(1) the utility model discloses a pivot is driven by hydraulic motor, and during the unwrapping wire, hydraulic motor increases the tensile of bearing wire in the unwrapping wire process through exerting the power opposite with the coiling device unwrapping wire direction for the pivot, realizes the tensile automatically regulated of bearing wire and keeps tensile invariable, increases the quality of setting up the bearing wire; the bearing wire from the winding device passes through the guide device and enters the tension applying device, when the wire is paid off to the edge of the winding device, the guide device moves towards two sides along with the bearing wire, the position of the bearing wire is detected and determined, and the hydraulic oil cylinder drives the support to move left and right along the guide rail device, so that the bearing wire output by the winding device can be quickly and automatically aligned with the tension applying device before entering the tension applying device, the tension of the bearing wire is ensured to be constant, the quality of the bearing wire is improved, and the automation degree is high; in addition, the control device partially replaces the generator set with an engine in the prior art, so that energy is saved, the emission of waste gas is reduced, the modularization of independent paying-off is formed, the size is reduced, the space is saved, and the transportation is convenient; the control device is self-researched and developed domestic equipment, the generator set supplies power to the main control motor through the power distribution cabinet, then the main control motor directly drives the hydraulic oil pump, the power input structure of the hydraulic oil pump is changed, the original transfer case control is changed into an electric control mode, the problem that the whole vehicle cannot work due to the damage of the transfer case or the hydraulic oil pump is solved, if parts are damaged, the parts are easily bought in the market, the replacement universality is strong, and the maintenance cost is reduced; the integrated valve group is used for controlling the oil circuit in the control system, original complex and disordered control valves and pipelines are integrated, the arrangement of the pipelines and the control valves in the oil circuit is simplified, and the maintenance is simpler and more convenient after the fault occurs;

(2) the top of the support of the utility model is detachably provided with a bearing seat, the rotating shaft is rotationally connected to the bearing seat, the bearing seat is divided into a detachable upper part and a detachable lower part, when the pay-off device is installed, the upper part of the bearing seat can be directly detached, the rotating shaft is taken down, the pay-off device passes through the rotating shaft, then the rotating shaft is placed on the bearing seat, and the upper part is buckled to complete installation, so that the installation and the disassembly of the pay-off device are simple and convenient, and the time for installing the pay-off device is saved;

(3) the utility model discloses a be equipped with the bearing gyro wheel on the support to along U type channel-section steel linear motion, can guarantee support rotational stability, can simplify the structure again, the both sides of support are fixed with the stopper, the side of stopper passes through the emollient with the medial surface of U type channel-section steel and contacts, make the support pass through the stopper, firm joint is in U type channel-section steel, can guarantee that the movement track of bearing gyro wheel moves along U type channel-section steel, prevent that the route of bearing gyro wheel from having the deviation, and the stopper is equipped with the emollient with the medial surface of U type channel-section steel, sliding friction has been reduced, can effectively reduce the noise, reduce the fault rate;

(4) the guide oil pipe of the utility model not only can guide the bracket, but also can lead the pipeline supplying oil to the hydraulic motor to move along with the oil cylinder, thereby avoiding dragging of drag chain type oil supply and prolonging the service life of the pipeline;

(5) the utility model discloses hydraulic motor's output shaft is equipped with the driving gear, meshes with the driven gear on the pivot and makes the pivot rotate, can effectively reduce the torsional stress of pivot, disperses torsion to the gear of great diameter, prevents to cause the damage to hydraulic motor or pivot because of the coiling device quality is too big, can effectively increase the life of this device;

(6) the utility model discloses a guiding mechanism sliding connection is on the guide rail, and holds the wire and be located between first wire coil leading wheel and the second wire coil leading wheel, makes guiding mechanism can move along with holding the position of wire, and photoelectric sensor judges the position of holding the wire on the winding device through the position that detects guiding mechanism, makes the mobile device action through controlling means, adjusts the position of the winding device on the support, makes it align with tension applying device, simple structure, and it is accurate to detect;

(7) the first wire coil guide wheel and the second wire coil guide wheel of the utility model are both rotationally connected to the guide mechanism, so that the sliding friction between the wire bearing wire and the wire bearing wheel is changed into rolling friction, and the wire bearing wire is prevented from being damaged;

(8) the utility model discloses a plurality of disk seats combined action and regulation increase the synergism, make the control of each oil circuit among the control system more meticulous, and the action is more accurate.

To sum up, the utility model discloses an degree of automation is high, and the modularization, the size is little, can guarantee that tension is invariable to according to actual conditions automatically regulated tension in the course of the work, guarantee the unwrapping wire quality, long service life, easy dismounting, the direction is stable, and energy saving and emission reduction is less to environmental pollution, is applicable to all contact net wire barrow.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic front view of an embodiment of the present invention;

fig. 2 is a schematic perspective view of a device on a road flatcar 13 according to an embodiment of the present invention;

fig. 3 is a schematic front view of a single pay-off device and guide device 9 according to an embodiment of the present invention;

fig. 4 is a schematic top view of a single pay-off and guide 9 according to an embodiment of the invention;

fig. 5 is a schematic perspective view of a guiding device 9 according to an embodiment of the present invention;

fig. 6 is a schematic view of the rotation direction structure of the winding device 5 and the hydraulic motor 17 according to the embodiment of the present invention;

fig. 7 is a schematic structural diagram of the guide oil pipe 7 according to the embodiment of the present invention;

fig. 8 is a control schematic diagram of an overall control device according to an embodiment of the present invention;

fig. 9 is a control schematic diagram of a hydraulic part in an embodiment of the present invention.

In the figure: 1-bracket, 2-base, 3-bearing seat, 4-rotating shaft, 5-winding device, 6-second hydraulic motor, 7-guide oil pipe, 71-oil pipe, 72-oil cylinder, 8-slide rail device, 81-U-shaped channel steel, 82-bearing roller, 83-limiting block, 9-guide device, 90-guide rail fixing plate, 91-first guide rail, 92-second guide rail, 93-slide block, 94-bottom plate, 95-vertical plate, 96-top plate, 97-first reel guide wheel, 98-second reel guide wheel, 99-photoelectric sensor, 10-bearing wire, 11-diamond plate, 12-tension applying device, 13-way flatcar, 14-hydraulic oil cylinder, 15-oil hole, 16-pipeline, 17-hydraulic motor, 18-driving gear, 19-driven gear, 20-guide post, 21-electro-hydraulic proportional valve, 22-oil storage device, 23-oil pressure sensor, 24-tension sensor, 25-generator set, 26-integrated valve group and 27-power distribution cabinet.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the catenary constant tension line barrow described herein is a preferred embodiment and is intended only to illustrate and explain the present invention and should not be taken as limiting the invention.

Embodiment contact net constant tension wire barrow

In this embodiment, as shown in fig. 1 to 9, a contact net constant tension wire barrow includes a support 1 fixed on a road platform barrow 13, a rotating shaft 4 rotatably connected to the support 1, and a winding device 5 fixedly arranged on the rotating shaft 4 and used for winding a bearing wire 10, where the support 1 is formed by two trapezoidal structures arranged in parallel, the upper portion is narrow, the lower portion is wide, and the lower portions are connected together by a welded base 2. The top detachably of support 1 is equipped with two bearing frames 3, bearing frame 3 is located respectively on the trapezoidal structure of 1 two parallel arrangement of support, pivot 4 passes through the bearing and rotates to be connected on bearing frame 3, two bearing frames 3 are located respectively at the both ends of pivot 4. The bearing seat 3 is an upper part and a lower part which are mutually buckled on the rotating shaft 4, and the two parts are fixedly connected through bolts, so that the winding device 5 on the rotating shaft 4 can be conveniently disassembled and assembled. The winding device 5 is a pay-off reel in the prior art, the rotating shaft 4 is fixedly provided with a diamond plate 11, and the diamond plate 11 is located on any side of the pay-off reel and fixedly connected with the pay-off reel through bolts. The road flatcar 13 is further fixedly provided with a tension applying device 12, a guiding device 9 and a wire guiding column 20, the tension applying device 12 and the wire guiding column 20 are both in the prior art, wherein after coming out of the winding device 5, the bearing wire 10 enters the tension applying device 12 through the guiding device 9, and then is erected on a cantilever of the overhead line system pole through the wire guiding column 20. The carrier wire 10 to be erected in this embodiment may be a contact wire or a messenger wire. The prior art road-use platform vehicle 13 is such that the road-use platform vehicle 13 moves forward and the wire 10 is paid out backward.

The road flat car 13 is fixedly provided with a slide rail device 8, the support 1 can move left and right on the slide rail device 8, the slide rail device 8 comprises two U-shaped channel steel 81, the U-shaped channel steel 81 is arranged on the road flat car 13 in parallel, the opening directions of the two U-shaped channel steel 81 are arranged oppositely, and the length direction is consistent with that of the rotating shaft 4. 2 both sides of base of support 1 have set firmly four bearing gyro wheels 82 for support 1 makes it more stable at the removal in-process, four stopper 83 have set firmly on four angles of support 1, the side of stopper 83 and the medial surface contact of U type channel steel 81, through emollient sliding fit between the two, reduce friction, the noise reduction, the emollient of this embodiment is the butter. Those skilled in the art can understand that bearing roller 82 and limiting block 83 are both arranged in U-shaped channel steel 81 and move along the length direction of U-shaped channel steel 81, bearing roller 82 contacts with the bottom surface of U-shaped channel steel 81 to make support 1 move, limiting block 83 contacts with the inner side surface of U-shaped channel steel 81 to provide guiding effect for bearing roller 82, make support 1 only move along the groove inner wall of U-shaped channel steel 81, prevent that the motion path of bearing roller 82 from deviating U-shaped channel steel 81.

The support 1 of this embodiment is fixedly provided with a hydraulic cylinder 14, a cylinder of the hydraulic cylinder 14 is fixedly connected with the base 2 of the support 1, a piston rod of the hydraulic cylinder 14 is fixedly connected with the road flatcar 13, and when the cylinder of the hydraulic cylinder 14 moves along the piston rod, the support 1 can be driven to move along the length direction of the U-shaped channel steel 81.

The support 1 is fixedly provided with a hydraulic motor 17 for driving the rotating shaft 4 to rotate, an output shaft of the hydraulic motor 17 is fixedly provided with a driving gear 18, the rotating shaft 4 is fixedly provided with a driven gear 19 meshed with the driving gear 18, the rotating shaft 4 is indirectly driven to rotate by the hydraulic motor 17 through a transmission gear, the torsional stress of the rotating shaft 4 is reduced, the torsional stress of the rotating shaft 4 is transferred to the driven gear 19 with a larger diameter, and the service lives of the rotating shaft 4 and the hydraulic motor 17 are prolonged. When unwinding, the direction of the force applied by the hydraulic motor 17 is opposite to the unwinding direction of the winding device 5, that is, the direction of the rotation of the output shaft of the hydraulic motor 17 is opposite to the direction of the rotation of the rotating shaft 4 when unwinding, as shown in fig. 6, a is the direction of the rotation of the winding device 5, b is the direction of the rotation of the output shaft of the hydraulic motor 17, and the rotating shaft 4 rotates along with the pulling force generated by the tension applying device 12. Because the pulling force for pulling the outgoing line of the conductor bearing 10 is larger than the reverse force applied to the rotating shaft 4 by the hydraulic motor 17, the conductor bearing 10 can be smoothly released, and because the rotating direction of the output shaft of the hydraulic motor 17 is opposite to the rotating direction of the rotating shaft 4 and the force in the opposite direction is applied to the rotating shaft 4, the conductor bearing 10 between the winding device 5 and the tension applying device 12 generates tension, which is beneficial to the erection of the conductor bearing 10. The tension applying device 12 is provided with a tension sensor 24 for detecting the tension on the bearing wire 10 and feeding back a signal to the control device, so that the rotating speed of the hydraulic motor 17 can be changed in real time, and the tension on the bearing wire 10 is ensured to be constant. After the construction is finished, the hydraulic motor 17 is rotated reversely to drive the winding device 5 to rotate reversely opposite to the paying-off direction, and the rest of the bearing wires 10 are wound on the winding device 5, so that the construction is quick and simple.

The hydraulic motor 17 oil supply device is characterized in that a guide oil pipe 7 for supplying oil to the hydraulic motor 17 is fixedly arranged on the support 1, the guide oil pipe 7 comprises an oil pipe 71 and an oil cylinder 72, supports are fixedly arranged at two ends of the oil pipe 71 and fixedly arranged on the road flat car 13, two ends of the oil pipe 71 are fixedly connected, the oil cylinder 72 is sleeved on the oil pipe 71, two ends of the oil cylinder 72 are hermetically connected with the oil pipe 71 in the same sealing mode as that of the hydraulic oil cylinder 14, an oil hole 15 is formed in the part, located in the oil cylinder 72, of the oil pipe 71, and a pipeline 16 for supplying oil to the hydraulic motor 17 is fixedly arranged on the oil cylinder 72. The outer wall of the oil pipe 71 is fixedly connected with the support 1, so that the oil cylinder 72 moves along with the support 1, the pipeline 16 penetrates through the base 2 of the support 1, a valve is arranged on the base 2, and the pipeline 16 moves along with the support 1. The two guide oil pipes 7 are used for oil inlet and outlet of the hydraulic motor 17 and are respectively positioned at two sides of the hydraulic oil cylinder 14. As shown in fig. 7, when oil is fed into the hydraulic motor 17, hydraulic oil enters along an oil pipe 71 leading to the oil pipe 7, enters the oil cylinder 72 from the oil hole 15, fills the oil cylinder 72, and then enters the hydraulic motor 17 through the pipeline 16 to supply oil to the hydraulic motor 17. When the hydraulic motor 17 produces oil, the oil is discharged from the oil pipe 71 of the other guide oil pipe 7, the oil cylinder 72 and the pipeline 16 can move along with the support, the form of a drag chain is avoided, the oil supply pipeline 16 cannot be dragged, the pipeline 16 is integral, the movement is convenient, and the service life is long.

The embodiment also comprises a guide 9 for detecting the position of the carrier wire 10 and providing an actuation signal to the hydraulic ram 14. The guide device 9 includes a guide rail, a guide mechanism slidably connected to the guide rail via a slider 93, and a photoelectric sensor 99 for detecting a position of the guide mechanism.

The guide rail comprises a first guide rail 91 and a second guide rail 92, sliding blocks 93 are connected to the first guide rail 91 and the second guide rail 92 in a sliding mode, guide rail fixing plates 90 are installed at two ends of the first guide rail 91 and the second guide rail 92 through bolts, and the guide rail fixing plates 90 are fixedly arranged on the road flat car 13, so that the first guide rail 91 and the second guide rail 92 are higher than the road flat car 13 and adapt to the height of the conductor 10.

The guide mechanism is fixedly arranged on the sliding block 93 and comprises a bottom plate 94 fixedly arranged on the sliding block 93, vertical plates 95 fixedly arranged on the bottom plate 94 and a top plate 96 fixedly arranged at one end, not connected with the bottom plate 94, of the vertical plates 95, two first wire coil guide wheels 97 are horizontally and rotatably connected between the two vertical plates 95, three second wire coil guide wheels 98 are vertically and rotatably connected between the bottom plate 94 and the top plate 96, and the first wire coil guide wheels 97 and the second wire coil guide wheels 98 form a front row and a back row for the wire bearing 10 to pass through a gap. A photoelectric sensor 99 is fixedly arranged between the first guide rail 91 and the second guide rail 92 and is used for detecting the position of the guide device 9, when the outgoing line position of the bearing wire 10 is positioned at the edge of the winding device 5 and cannot be aligned with the tension applying device 12, the guide mechanism moves to the edge position along with the bearing wire 10, and the photoelectric sensor 99 judges that the bracket 1 needs to move leftwards or rightwards by detecting the position of the guide mechanism so as to align the outgoing line position of the bearing wire 10 with the tension applying device 12. The number of the photoelectric sensors 99 is two, the two photoelectric sensors 99 are sequentially arranged along the length direction of the first guide rail 91, and a certain distance is left between the two photoelectric sensors 99. The photoelectric sensor 99 transmits the acquired position information of the guide mechanism to the control device, and the control device enables the hydraulic oil cylinder 14 to drive the bracket 1 to move correspondingly.

The control means includes a generator set 25 and a hydraulic control assembly. The hydraulic control assembly is used for controlling the flow and pressure of hydraulic oil in the hydraulic execution assembly (the hydraulic motor 17, the hydraulic oil cylinder 14, the guide oil pipe 7 and the second hydraulic motor 6 in the tension applying device 12) so as to adjust the hydraulic energy which can be converted by the hydraulic motor 17, the hydraulic oil cylinder 14, the guide oil pipe 7 and the second hydraulic motor 6 in the tension applying device 12. The hydraulic control assembly comprises a signal control assembly and an oil storage device 22, a hydraulic oil pump and an integrated valve group 26 which are sequentially connected, as shown in fig. 8, a generator set 25 is electrically connected with the main control motor through a power distribution cabinet 27 to supply power to the main control motor; the main control motor directly drives the hydraulic oil pump to provide power for the hydraulic oil pump, so that the hydraulic oil pump flows the hydraulic oil in the oil storage device 22 to the corresponding hydraulic execution assembly, and the hydraulic energy is converted into mechanical energy by controlling the amount of the hydraulic oil in the hydraulic execution assembly to provide power for the hydraulic execution assembly. The hydraulic oil pump is a power source of the whole hydraulic system and can meet the requirements of the hydraulic system on pressure and flow. An oil inlet of the hydraulic oil pump is communicated with the oil storage device 22, and an oil outlet of the hydraulic oil pump is respectively communicated with the hydraulic motor 17, the hydraulic oil cylinder 14, the guide oil pipe 7 and the second hydraulic motor 6 in the tension applying device 12 through the integrated valve group 26 and an oil way, so that corresponding hydraulic energy is provided for the hydraulic execution assembly. Because of whole hydraulic system's hydraulic pressure execution unit is more, in order to suitably reduce the work load of hydraulic control subassembly, avoid the device to damage, in this embodiment, be equipped with three main control motor and five hydraulic oil pump.

The integrated valve group 26 is disposed in a pipeline between the hydraulic oil pump and the hydraulic actuator assembly, and is used for controlling the flow and pressure of hydraulic oil in the pipeline. As shown in fig. 9, the integrated valve set 26 includes a plurality of electro-hydraulic proportional valves 21, and an overflow valve and a three-position four-way energy valve which are communicated with oil outlets of the electro-hydraulic proportional valves 21; the control end of the electro-hydraulic proportional valve 21 is electrically connected with the signal control assembly, the oil outlet of the three-position four-way functional valve is respectively communicated with the hydraulic motor 17, the hydraulic oil cylinder 14, the guide oil pipe 7 and the second hydraulic motor 6 in the tension applying device 12 in the hydraulic execution assembly, and the overflow valve is used for controlling the overall pressure of the hydraulic system. The integrated valve group 26 can reduce the use of pipelines in oil paths, has a simple and clear integral structure, can clearly display the oil paths controlled by each electro-hydraulic proportional valve 21, and can simply and quickly perform troubleshooting and maintenance after a fault occurs.

The signal control assembly detects and controls the flow and pressure of each oil path of the hydraulic system in real time so as to adjust the tension applied to the bearing wire 10. The signal control assembly comprises a signal sensor, an A/D conversion module, a PLC control module and a D/A conversion module which are electrically connected in sequence. During operation, the signal sensor converts analog signals into digital signals through the A/D conversion module and then transmits the digital signals to the PLC control module, the PLC control module performs internal program calculation, the calculation results are converted into analog signals through the D/A conversion module, and the analog signals are fed back to the corresponding electro-hydraulic proportional valve 21 through the signal amplifier, so that the flow and the pressure of hydraulic oil in an oil way are controlled through the electro-hydraulic proportional valve 21.

The signal sensors mainly include a photoelectric sensor 99, an oil pressure sensor 23, and a tension sensor 24. The photoelectric sensor is arranged below the guide device 9 and used for detecting the position of the guide wire 10 driving the guide device 9 to move; the oil pressure sensor 23 is arranged at an oil outlet of the overflow valve and used for detecting the flow and pressure of hydraulic oil in each oil path; the tension sensor 24 is provided on the tension applying device 12, and is used for detecting the tension on the erected conductor 10 to adjust the rotation speed of the hydraulic motor 17 so as to keep the tension of the conductor 10 constant.

Since the road carriage 13 of this embodiment is provided with four sets of wire feeding devices, this embodiment includes four second hydraulic motors 6 and four hydraulic cylinders 14 to control the operation of each wire feeding device. In order to drive the tension applying device 12 better and ensure that the tension applying device 12 can apply enough tension to the wire 10, two second hydraulic motors 6 are respectively arranged on two sides of the tension applying device 12.

The working principle of the embodiment is as follows: when the device is used for paying off the bearing wire 10, the road flat car 13 advances to pay out the bearing wire 10, meanwhile, the hydraulic motor 17 applies force in the opposite direction to the rotating shaft 4, so that the bearing wire 10 output from the winding device 5 generates certain tension, the bearing wire 10 is led out from the winding device 5, enters a gap between a first wire coil guide wheel 97 and a second wire coil guide wheel 98 of a guide mechanism and then enters the tension applying device 12, when the outgoing position of the bearing wire 10 is at the edge of the winding device 5, the bearing wire 10 and the tension applying device 12 generate a certain angle, when the angle reaches a certain degree, the bearing wire 10 drives the guide mechanism to move above the photoelectric sensor 99, the photoelectric sensor 99 acquires the position information of the guide mechanism and transmits the position information to the control device, the control device controls the oil inlet or outlet amount of each oil circuit, the hydraulic oil cylinder 14 and the guide oil pipe 7 are moved correspondingly, the edge of the bracket 1 is moved towards the direction aligned with the tension applying device 12, finally the bearing wire 10 output from the winding device 5 is aligned with the tension applying device 12, the quality of the erected bearing wire 10 is ensured, meanwhile, the tension sensor 24 on the tension applying device 12 detects the tension on the bearing wire 10 and feeds the tension back to the control device, so that the hydraulic motor 17 automatically adjusts the rotating speed, and the tension is ensured to be constant.

It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the above-mentioned embodiments, or some technical features can be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a constant tension wire barrow of contact net, is including setting firmly pay-off, the tension that the road flatcar just held the wire and passed in proper order and applying device, wire column and controlling means, pay-off includes the support, rotates the pivot of connecting on the support, sets firmly the winding device who is used for the winding to hold the wire in the pivot, its characterized in that: the road flatcar is fixedly provided with a slide rail device and a hydraulic oil cylinder used for enabling the support to move along the slide rail device, the support is fixedly provided with a hydraulic motor used for driving the rotating shaft to rotate and providing tension for the winding device, and the force application direction of the hydraulic motor when providing tension for the winding device is opposite to the paying-off direction of the winding device;

2. The contact net constant tension stringing vehicle as claimed in claim 1, wherein: the top detachably of support is equipped with the bearing frame, the bearing frame includes upper and lower two parts of mutual lock, the pivot is passed through the bearing and is rotated and connect on the bearing frame.

3. The contact net constant tension stringing vehicle as claimed in claim 1 or 2, wherein: the slide rail device comprises two parallel U-shaped channel steels, bearing rollers and limiting blocks, the bearing rollers are fixedly arranged on two sides of the support, the limiting blocks are guided by the bearing rollers and are arranged on two sides of the support, the bearing rollers are arranged in the U-shaped channel steels and move along the length direction of the U-shaped channel steels, and the limiting blocks are in contact with the inner side surfaces of the U-shaped channel steels and are in sliding fit with lubricating agents.

4. The contact net constant tension stringing vehicle as claimed in claim 3, wherein: the road flatcar is also fixedly provided with a guide oil pipe, the guide oil pipe comprises an oil pipe fixedly arranged on the road flatcar and an oil cylinder sleeved on the oil pipe, the part of the oil pipe positioned in the oil cylinder is provided with an oil hole, and the oil cylinder is fixedly provided with a pipeline for supplying oil to the hydraulic motor; the oil guide pipe is provided with two oil guide pipes and used for oil inlet and oil outlet of the hydraulic motor, and the outer wall of the oil cylinder is fixedly connected with the support and moves along the oil guide pipes.

5. The contact net constant tension wire barrow according to any one of claims 1, 2 and 4, characterized in that: and a driving gear is fixedly arranged on an output shaft of the hydraulic motor, and a driven gear meshed with the driving gear is fixedly arranged on the rotating shaft.

6. The contact net constant tension stringing vehicle as claimed in claim 5, wherein: the guide device comprises a guide rail, a guide mechanism and a photoelectric sensor, wherein the guide mechanism is connected with the guide rail in a sliding mode through a sliding block and used for allowing a guide wire to pass through, and the photoelectric sensor is used for detecting the position of the guide mechanism.

7. The contact net constant tension stringing vehicle as claimed in claim 6, wherein: and the first wire coil guide wheel and the second wire coil guide wheel are rotatably connected to the guide mechanism.

8. The contact net constant tension stringing vehicle as claimed in any one of claims 1, 2, 4, 6 and 7, wherein: the integrated valve group comprises a plurality of electro-hydraulic proportional valves, overflow valves communicated with oil outlets of the electro-hydraulic proportional valves and three-position four-way functional valves; the control end of the electro-hydraulic proportional valve is electrically connected with the signal control assembly, and the three-position four-way energy valve is respectively connected with the hydraulic motor, the hydraulic oil cylinder and the hydraulic motor in the tension applying device through oil pipes.

9. The contact net constant tension stringing vehicle as claimed in claim 8, wherein: the signal control assembly comprises a signal sensor, an A/D conversion module, a PLC control module and a D/A conversion module which are electrically connected in sequence; the signal sensor comprises a photoelectric sensor arranged below the guide seat of the bearing wire, an oil pressure sensor arranged at an oil outlet of the overflow valve and a tension sensor arranged on the tension disc.