CN210404563U - Automatic wire tightening device - Google Patents
Automatic wire tightening device Download PDFInfo
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- CN210404563U CN210404563U CN201921587573.3U CN201921587573U CN210404563U CN 210404563 U CN210404563 U CN 210404563U CN 201921587573 U CN201921587573 U CN 201921587573U CN 210404563 U CN210404563 U CN 210404563U
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Abstract
The utility model discloses an automatic wire tightening device, which comprises a wire tightening mechanism for tightening a wire needing to be tightened in a constructed anchor section and a pulley hung on an anchor post at the anchoring part of the constructed anchor section, wherein the pulley is hung on the upper part of the anchor post at the anchoring part; the wire tensioning mechanism comprises a traction rope, a tension detection device for detecting the tension of the traction rope in real time and a traction rope tensioning mechanism. The utility model has the advantages of simple structure and reasonable design and processing preparation and use easy and simple to handle, excellent in use effect, tighten up the mechanism with haulage rope and constitute and carry out taut straining wire grip to the taut cable of needs, and hang the dress pulley on the anchor post upper portion of anchor department that falls, the taut link of haulage rope is connected with the taut cable of needs behind the pulley, through haulage rope and haulage rope tightening up mechanism with the cable is automatic taut, simultaneously carry out real-time detection through tension detection device to the tension of haulage rope, it saves labour and saves time to save the contact net, can effectively simplify the stringing process in the work progress.
Description
Technical Field
The utility model belongs to the technical field of the contact net construction, especially, relate to an automatic take-up unit.
Background
The high-voltage transmission line used in the contact network is also called contact line wire or contact line. The overhead contact system is a main frame of the railway electrification engineering, is a special power transmission line which is erected along a railway line and supplies power to an electric locomotive, and consists of a contact suspension, a supporting device, a positioning device, a support column and a foundation. Among them, the contact suspension (also called contact suspension device) is erected on the support column through a supporting device, and the contact suspension device is used for transmitting electric energy obtained from a traction substation to an electric locomotive, and comprises a catenary wire, a contact wire, a compensating device and the like. The support device is used to support the contact suspension and to transmit the load to the column or other building, and the wrist is a common support device. The contact net support column can be divided into a middle column, a conversion column, an anchor column and the like according to the application. The contact line is the part that directly gets the current with pantograph slide plate friction contact in the contact net, and electric locomotive gets the electric energy from the contact line. The function of the carrier cable is to suspend the contact wire by a dropper, and the carrier cable is required to bear larger tension and have corrosion resistance and less sag change when the temperature changes. The carrier cable is generally erected by adopting a stringing vehicle group which is towed by a rail vehicle, and the closed time is utilized to occupy the line operation. When the contact net is constructed, an additional lead needs to be erected besides a catenary and a contact line. The contact net additional lead comprises a power supply line, a return line, an overhead ground wire and the like.
The compensating device is also called a contact line compensating device, a tension automatic compensator, an anchoring compensating device or a tension compensating device, and is a general name of a compensator for automatically adjusting the tension of a contact line and a catenary and a braking device thereof. The contact net compensation device is fixed at two ends of the anchor section and is connected in series with the contact line or the carrier cable. In the use process of the contact net, when the temperature changes, the clue is expanded with heat and contracted with cold under the influence of the temperature change to be extended or shortened. After the contact net compensation device is installed at the anchoring part of the cable at two ends of the anchor section, under the action of gravity of a balance weight (also called a balance weight string or balance weight block) in the contact net compensation device, the tension of the cable can be automatically adjusted and the tension sag of the cable can be kept to meet the technical requirements, so that the stability and elasticity of the contact suspension are improved, and the operation quality of the contact net is improved. The contact net compensation device consists of a compensation pulley, a compensation rope, a pestle ring rod, a weight block and a connecting part.
In order to meet the requirement of reliable current taking of the contact net under various conditions, a simple suspension mode and a chain-shaped suspension (also called chain-shaped suspension) mode are adopted for the contact suspension part of the contact net. Because the contact line and the catenary are anchored in different forms, the chain-shaped suspension mode of the contact line is divided into a full-compensation chain-shaped suspension mode and a semi-compensation chain-shaped suspension mode, wherein the contact line adopting the full-compensation chain-shaped suspension mode is a full-compensation chain-shaped suspension contact line, and contact line compensation devices are arranged at the anchoring positions at two ends of the contact line and the catenary in the full-compensation chain-shaped suspension contact line; in the semi-compensation chain-shaped suspension contact net, only the lower anchor parts at two ends of the contact line are provided with contact net compensation devices, and the lower anchor parts at two ends of the carrier cable are hard anchors.
The catenary is typically divided from back to front into a number of individual sections, called anchor sections, one anchor section being about 1500 meters in length. An anchor section joint is arranged between the front anchor section and the rear anchor section, a strut between the two anchor columns on the anchor section joint is a conversion column, and a double-cantilever is arranged on the conversion column. A strut with a single cantilever in one anchor section is a middle column; the support column of the lower anchor in one anchor section is an anchor column, the anchor column is provided with a cantilever (namely a supporting device), a contact suspension device and a contact net compensation device, the contact suspension device is hung on the supporting device, and the anchor column not only plays the role of a middle column, but also bears the tension of the lower anchor. The anchor columns at the two ends of each anchor section are provided with contact net compensation devices, the anchoring part is arranged at one end of the erected cable in each anchor section, the anchoring part is arranged at the other end of the erected cable, and the erected cable is a catenary cable or a contact line. When the erected cable is erected, firstly erecting the cable on the anchor post at the anchoring part, then paying off the cable to one side of the anchoring part by using the cable erecting vehicle, after the paying off of the anchoring part is finished and the cable is tightened, arranging a cable clamp at the other end of the erected cable and connecting the cable clamp with a contact network compensation device on the anchor post at the anchoring part, and completing the cable erecting process. Wherein, the anchor post of the anchor portion in an anchor section is called anchor post of anchor portion, and the anchor post of the anchor portion is called anchor post of anchor portion.
However, in the current construction process of the contact network, when the cable (including the catenary cable, the contact line and the additional conductor) is tightened, no unified and standardized tightening method can be followed, in the actual operation process, the cable is tightened usually in a mode of manually pulling the cable by a plurality of constructors or in a mode of pulling the cable by a tractor, and the problems that the construction operation is random, the tightening process is complex, labor and time are wasted, the tightening construction quality cannot be guaranteed and the like cannot be avoided, and the cable can be tightened usually by dozens of workers, and the tightening can be completed only by the cooperation of a plurality of people in the tightening process, so that the construction quality of the contact network cannot be effectively guaranteed due to human factors.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed against, an automatic take-up device is provided, a structure is simple, reasonable in design and processing preparation and use easy and simple to handle, excellent in use effect, constitute haulage rope and haulage rope tightening mechanism and carry out taut take-up mechanism to the taut thread that needs, and hang the dress pulley on anchor post upper portion that falls, the taut link of haulage rope is connected with the taut thread that needs behind the pulley, it is automatic taut with the thread through haulage rope and haulage rope tightening mechanism, simultaneously carry out real-time detection through tension detection device to the tension of haulage rope, it is laborsaving and timesaving to save the contact net, can effectively simplify the stringing process in the work progress.
In order to solve the technical problem, the utility model discloses a technical scheme is: an automatic wire tightening device is characterized in that: the tensioning device comprises a wire tensioning mechanism for tensioning a wire required to be tensioned in a constructed anchor section and a pulley hung on an anchor post at the anchor falling position of the constructed anchor section, wherein the pulley is hung on the upper part of the anchor post at the anchor falling position; the constructed anchor section is one of the constructed contact networks, the anchor post at the anchoring position is a contact network support post at the anchoring position of a contact network cable erected in the constructed anchor section, and the contact network cable is a catenary cable or a contact line; the cable needing to be tensioned is a contact network cable or an additional contact network lead erected in the constructed anchor section, and the additional contact network lead is a power supply line, a return line or an overhead ground wire; the wire tensioning mechanism comprises a traction rope, a tension detection device for detecting the tension of the traction rope in real time and a traction rope tightening mechanism, wherein the traction rope tightening mechanism comprises a winding drum for winding the traction rope and an electric driving mechanism for driving the winding drum to rotate; one end of the traction rope is wound on the winding drum, the other end of the traction rope is a tensioning connecting end, a wire clamping device is fixed on a cable section between an anchor post at the anchoring position and the anchoring side conversion post in the cable to be tensioned, the tensioning connecting end is connected with the wire clamping device through a pulley, and a detachable connecting piece used for being connected with the wire clamping device is fixed on the tensioning connecting end; the anchor falling side conversion column is a contact net support column adjacent to the anchor falling position in the constructed anchor section, and the traction rope tightening mechanism and the anchor falling side conversion column are respectively arranged on two sides of the anchor falling position.
The automatic wire tightening device is characterized in that: the tension detection device is a tension tester, and the detachable connecting piece is a hook and is hung on the wire clamping device.
The automatic wire tightening device is characterized in that: the constructed contact network is a contact network of an electrified railway, and the traction rope tightening mechanism is arranged on a translation vehicle capable of moving back and forth on the electrified railway; the translation car is a transfer cart which is driven by a contact net rail car of a constructed contact net to move back and forth and drives the traction rope tightening mechanism to move synchronously in the moving process.
The automatic wire tightening device is characterized in that: the traction rope tightening mechanism further comprises a rack, the winding drum and the electric driving mechanism are both mounted on the rack, and the rack is fixedly mounted on the translation vehicle; the tension detection device is installed on the rack through the installation frame, the tension detection device is connected with the installation frame in a hinged mode, and the installation frame is fixedly installed on the rack.
The automatic wire tightening device is characterized in that: the translation car is a wire barrow used in the process of erecting the cable needing to be tensioned, and a wire releasing mechanism for releasing the cable needing to be tensioned is arranged on the translation car.
The automatic wire tightening device is characterized in that: the anchor falling side conversion column is located on the front side of the anchor falling position anchor column, the traction rope tightening mechanism is located on the rear side of the paying-off mechanism and fixedly mounted on the translation vehicle, and the tension detection device is located on the front side of the traction rope tightening mechanism.
The automatic wire tightening device is characterized in that: the translation vehicle is a flat car.
The automatic wire tightening device is characterized in that: the mounting rack is fixedly mounted on the upper portion of the front side of the rack.
The automatic wire tightening device is characterized in that: the pulley is hung on anchor bearing angle steel or line anchor angle steel arranged on the anchor post at the anchor falling position.
Compared with the prior art, the utility model has the following advantage:
1. simple structure and simple and convenient processing and manufacturing, and the input cost is lower.
2. Structural design is reasonable, include to need taut cable wire-tightening mechanism that the cable wire was taut in the anchor section of being under construction and hang the pulley on the anchor post of the anchor that falls of anchor section of being under construction, cable wire-tightening mechanism includes the haulage rope, carry out real-time detection's tension detection device and haulage rope tightening mechanism to the tension of haulage rope, carry out automatic tightening to the haulage rope through haulage rope tightening mechanism, can be simple and convenient, take-up the cable wire fast to needs, realize needing the automatic cable wire-tightening process of taut cable wire, need not the manual pulling of people and carry out the cable wire, labour saving and time saving.
3. Use easy and simple to handle, the installation is laid conveniently and excellent in use effect, tighten up the mechanism with haulage rope and constitute to need taut cable to carry out taut wire grip mechanism, and hang the dress pulley on anchor post upper portion falling, the taut link of haulage rope is connected with the taut cable that needs behind the pulley, it is automatic taut with the cable through the haulage rope, simultaneously carry out real-time detection through tension detection device to the tension of haulage rope, it is laborsaving and time-saving to save labour, can effectively simplify the stringing process among the contact net work progress, carry out the stringing to the cable that the contact net was under construction fast, and ensure contact net cable wire tensioning effect, only need in a few minutes just can accomplish the stringing.
To sum up, the utility model has the advantages of simple structure and reasonable design and processing preparation and use easy and simple to handle, excellent in use effect, tighten up the mechanism with haulage rope and constitute to need taut cable to carry out taut straining mechanism, and hang the dress pulley on anchor post upper portion of falling anchor department, the taut link of haulage rope is connected with needs taut cable behind the pulley, through haulage rope and haulage rope tightening up mechanism with the cable is automatic taut, carry out real-time detection through tension detection device to the tension of haulage rope simultaneously, labour saving and time saving can effectively simplify the stringing process in the contact net work progress.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic view of the tightening state of the present invention.
Fig. 2 is a schematic structural diagram of the wire tightening mechanism of the present invention.
Fig. 3 is a schematic plan view of the wire tightening mechanism of the present invention.
Fig. 4 is a flow chart of a method for tightening the cable according to the present invention.
Description of reference numerals:
1-a traction rope; 2, a pulley; 3-anchor column at anchor falling position;
4-contact net cable; 5, winding a drum; 6-detachable connecting piece;
7, an anchor falling side conversion column; 8-a wire clamping device; 9-a frame;
10-tensile tester; 11-electrified railway; 12-a translation vehicle;
13-a mounting frame; 14-a pay-off mechanism; 15-three-phase asynchronous motor;
16-an electric wire tightening mechanism; 19-anchor bearing angle steel; 20-anchor angle steel.
Detailed Description
As shown in fig. 1, the utility model comprises a wire tightening mechanism for tightening a wire in a constructed anchor section and a pulley 2 hung on an anchor post 3 at the anchoring part of the constructed anchor section, wherein the pulley 2 is hung on the upper part of the anchor post 3 at the anchoring part; the constructed anchor section is one of the constructed contact networks, the anchor post 3 at the anchoring position is a contact network support post at the anchoring position of a contact network cable 4 erected in the constructed anchor section, and the contact network cable 4 is a catenary cable or a contact line; the cable needing to be tensioned is a contact network cable 4 or an additional contact network lead which is erected in the constructed anchor section, and the additional contact network lead is a power supply line, a return line or an overhead ground wire; with reference to fig. 2 and 3, the wire tightening mechanism includes a traction rope 1, a tension detection device for detecting tension of the traction rope 1 in real time, and a traction rope tightening mechanism, the traction rope tightening mechanism includes a winding drum 5 for winding the traction rope 1 and an electric driving mechanism for driving the winding drum 5 to rotate, the tension detection device is mounted on the traction rope 1, and the winding drum 5 is in transmission connection with the electric driving mechanism through a transmission mechanism; one end of the hauling rope 1 is wound on the winding drum 5, the other end of the hauling rope 1 is a tensioning connecting end, and the tensioning connecting end is connected with the cable needing to be tensioned after passing through the pulley 2; a wire clamping device 8 is fixed on a wire section of the wire to be tensioned, which is positioned between the anchor post 3 at the anchoring position and the anchoring side conversion post 7, and a detachable connecting piece 6 for connecting the wire clamping device 8 is fixed on the tensioning connecting end; the anchor falling side conversion column 7 is a contact net support column adjacent to the anchor falling position anchor column 3 in the constructed anchor section, and the traction rope tightening mechanism and the anchor falling side conversion column 7 are respectively arranged on two sides of the anchor falling position anchor column 3. And the pulley 2 is hung on the upper part of the anchor post 3 at the anchor falling position through a vertical hook.
And anchor columns at two ends of each anchor section in the constructed contact network are provided with contact network compensation devices, the anchoring part at one end of the contact network cable 4 in each anchor section is an anchoring part, and the anchoring part at the other end of the contact network cable 4 is an anchoring part. The anchor post 3 at the anchoring part is an anchor post at the anchoring part in one anchor section, the anchor post at the anchoring part in one anchor section is an anchor post at the anchoring part, and the anchor post 3 at the anchoring part and the anchor post at the anchoring part are both provided with the contact net compensation device. In any anchor section of the constructed contact network, the contact network strut at one end is the anchor column at the anchoring part, and the contact network strut at the other end is the anchor column 3 at the anchoring part.
In this embodiment, as shown in fig. 2, the tension detecting device is a tension tester 10.
In this embodiment, the hauling cable 1 is a steel wire rope. Other types of ropes can be used for the traction rope 1 during practical construction.
In the actual use process, the tension of the traction rope 1 is detected in real time through the tension tester 10, and the detected tension value F is synchronously displayed. Moreover, the tension tester 10 is easy to install and convenient to use and operate.
As shown in fig. 2, the tensile tester 10 may be attached to the traction rope 1. In practical use, the tension tester 10 is a conventional steel wire rope tension tester, a steel wire rope dynamometer and the like, and only needs to detect the tension of the traction rope 1, such as an SL-type SL-10T portable steel wire rope tension tester produced by shenzhen jinxiang source science and technology limited. In practical use, the tension tester 10 may also be a tension tester, a tension detector, a tensiometer, or the like of other types, and only the requirement for tension detection of the traction rope 1 needs to be satisfied.
Adopt the utility model discloses carry out the tight line in-process, treat that tight thread frame plays the back in need, haulage rope 1 is in the tension state with the tight thread that needs, and the tension of haulage rope 1 this moment is the same with the tension that needs tight thread, therefore the tension value that detects through tension tester 10 is the tension value that needs tight thread this moment to can carry out portably, quick and synchronous detection to the tension value that needs tight thread at tight line in-process, and correspondingly grasp in real time the tight line process of tight thread that needs tight thread, make the tight line process of tight thread more directly perceived, controllable.
In this embodiment, the detachable connecting member 6 is a hook and is hung on the wire clamping device 8.
The actual connection is very simple and convenient and the connection is reliable, and the connection process of the tensioning connecting end and the cable needing tensioning can be completed only by hanging the hook on the cable clamping device 8, and the connection is reliable and the disassembly and the assembly are convenient. In practical use, the detachable connecting piece 6 can also adopt other types of connecting pieces, such as buckles and the like, and only the tensioning connecting end is tightly connected with the wire clamping device 8 and is simply and conveniently detached.
For simple installation, the pulley 2 is hung on anchor bearing angle steel 19 or wire anchor angle steel 20 installed on the anchor post 3 at the anchor falling position. As shown in fig. 1, the anchor bearing angle 19 and the line anchor angle 20 are both fixed on the upper part of the anchor column 3 at the anchor falling position, and the anchor bearing angle 19 is located above the line anchor angle 20. The line anchor angle steel 20 is an angle steel for connecting the contact line and the contact line strut when the line anchor (i.e. the contact line is anchored), and is generally a frame formed by two L-shaped angle steels which are penetrated through by a screw, and the line anchor angle steel 20 is arranged below an anchor bearing angle steel 19 at the upper part of the contact line strut (i.e. the anchor column); one end of the wire anchor angle steel 20 is connected with a contact line compensation device of the contact line lower anchor, and the other end is connected with a contact line lower anchor stay wire. The anchor bearing angle steel 19 is angle steel for connecting a catenary and a contact net strut when an anchor is anchored (namely, a catenary goes down), is generally a frame formed by oppositely penetrating two C-shaped channel steels by using a screw rod, and is sleeved at the uppermost end of the contact net strut (namely, an anchor column); one end of the anchor bearing angle steel 19 is connected with a catenary compensation device for anchoring the catenary, and the other end is connected with a catenary anchoring stay wire. Only need with pulley 2 hang on hold anchor angle steel 19 or line anchor angle steel 20 on the anchor post 3 of anchor department of falling can, after the tight line is accomplished directly take off pulley 2 can, actual operation is simple and convenient to it is firm to hang the dress. In this embodiment, to meet the bearing requirement in the wire tightening process, the bearing capacity of the pulley 2 is 5 t. After hanging the dress, pulley 2 is vertical to laying to the cylinder of pulley 2 and the anchor 3 of falling anchor department is close to, therefore can further ensure the tight line in-process, pulley 2's steadiness and firm nature ensure pulley 2 can not appear the skew, and can ensure that the tight line process goes on smoothly and safely, and phenomenons such as the while tight line in-process haulage rope 1 can not appear droing, skew.
As shown in fig. 1, the constructed contact network is a contact network of an electrified railway 11, and the traction rope tightening mechanism is placed on a translation car 12 capable of moving back and forth on the electrified railway 11; the translation vehicle 12 is a transfer cart which is driven by a contact net rail car of a constructed contact net to move back and forth and drives the traction rope tightening mechanism to move synchronously in the moving process.
In actual use, the translator vehicle 12 can move back and forth on the electrified railway 11, and the translator vehicle 12 moves back and forth along the extending direction of the electrified railway 11.
In this embodiment, the contact net of being under construction is existing contact net, existing contact net is the current contact net that needs to reform transform. Therefore, the contact net rail car can simply and conveniently drive the translation car 12 to move, so that the traction rope tightening mechanism is driven to synchronously and stably move, labor and time are saved, and construction cost can be effectively saved.
During actual construction, the constructed contact network can also be a contact network to be constructed of a newly-built electrified railway.
In this embodiment, the traction rope tightening mechanism further includes a frame 9, the winding drum 5 and the electric driving mechanism are both mounted on the frame 9, and the frame 9 is fixedly mounted on the translation vehicle 12.
For easy to assemble and use, the tension detection device is installed on the frame 9 through the installation frame 13, the tension detection device is connected with the installation frame 13 in an articulated mode, and the installation frame 13 is fixedly installed on the frame 9. The tension detection device is connected with the frame 9 of the traction rope tightening mechanism into a whole through the mounting frame 13, the tension detection device, the frame 9 of the traction rope tightening mechanism and the mounting frame form an electric wire tightening mechanism 16, and the tension detection device is very convenient to use, operate, use, move and store.
In this embodiment, the frame 9 is a cubic frame formed by welding a plurality of steel bars. During practical use, the frame 9 can also adopt frame bodies of other shapes, and only the installation and support requirements of the winding drum 5 and the electric driving mechanism can be met.
The mounting bracket 13 is a straight rod or a straight bracket. In this embodiment, the mounting bracket 13 is a steel bar fixed on the frame 9 by welding, and is simple and convenient to actually process and is fixed firmly.
In this embodiment, the mounting bracket 13 is fixedly mounted on the upper portion of the front side of the frame 9.
During actual processing, the fixing position of the mounting frame 13 on the rack 9 can be adjusted accordingly according to specific requirements.
In this embodiment, the translation vehicle 12 is a flat car.
Flatbed simple structure, light in weight and remove portably, the flatbed includes horizontal frame and installs the walking wheel of horizontal frame bottom, 9 fixed mounting of frame are in on the horizontal frame. And, the frame 9 is horizontally arranged.
When the device is actually arranged and installed, the winding drum 5 and the electric driving mechanism are both horizontally arranged. In this embodiment, the winding drum 5 and the electric driving mechanism are arranged in parallel, and the winding drum 5 is arranged along the width direction of the carriage 12.
As shown in fig. 1, when actually performing the wire tightening, the reels 5 are arranged in the width direction of the electric railway 11.
As shown in fig. 2 and 3, the winding drum 5 and the electric driving mechanism are located on the same horizontal plane and both are fixedly installed inside the bottom of the frame 9, and the winding drum 5 and the electric driving mechanism are respectively located on the left and right sides of the front portion of the frame 9.
In this embodiment, the electric driving mechanism is a three-phase asynchronous motor 15, and the winding drum 5 and the three-phase asynchronous motor 15 are in transmission connection through a speed reducer 18. The three-phase asynchronous motor 15 is a conventional three-phase asynchronous motor (also referred to as a three-phase asynchronous motor) adopted by a person skilled in the art, and the speed reducer 18 is a conventional speed reducer adopted by the three-phase asynchronous motor 15, and only the speed reduction requirement of the three-phase asynchronous motor 15 needs to be met.
In practical use, the electric driving mechanism can be an electric motor of other types, and only the requirement of driving the winding drum 5 can be met, and the rotating speed of the electric driving mechanism can be adjusted simply and conveniently.
As shown in fig. 3, the speed reducer 18 is located on the rear side of the drum 5 and the electric drive mechanism. During actual processing, the layout positions of the speed reducer 18, the winding drum 5 and the electric driving mechanism on the frame 9 can be respectively adjusted according to specific requirements.
For convenience in use and further construction cost saving, the translation vehicle 12 is a wire barrow used in the process of erecting the cable needing to be tensioned, and a wire releasing mechanism 14 for releasing the cable needing to be tensioned is arranged on the translation vehicle 12.
As shown in fig. 1, in this embodiment, the paying out mechanism 14 and the pull rope tightening mechanism are both mounted on the translation carriage 12, and the paying out mechanism 14 is located at the front side of the pull rope tightening mechanism.
For convenient use, haulage rope tightening mechanism still include to pulley 2 with haulage rope 1's displacement between the haulage rope tightening mechanism carries out real-time detection's haulage rope displacement detecting element or to pulley 2 with haulage rope 1's translation rate carries out real-time detection's haulage rope speed detecting element between the haulage rope tightening mechanism. The haulage rope displacement detection unit is laser displacement sensor, for example the miniature laser triangle reflection formula sensor series of optoNCDT14xx, during the in-service use haulage rope displacement detection unit also can adopt other types of laser displacement sensor, only need can satisfy the non-contact detection demand of haulage rope 1 displacement can. The hauling cable displacement detecting unit and the hauling cable speed detecting unit are both arranged on the frame 9. When the device is actually used, the moving speed of the traction rope 1 can be directly obtained according to the displacement value detected by the traction rope displacement detection unit.
The haulage rope speed detecting element is laser tachometer sensor or infrared ray tachometer sensor, and during the in-service use, haulage rope speed detecting element can adopt conventional laser tachometer sensor or infrared ray tachometer sensor, only need satisfy the non-contact detection demand of haulage rope 1 speed can.
In this embodiment, the anchor falling side conversion column 7 is located the 3 front sides of anchor falling department anchor post, the haulage rope tightening mechanism is located the 3 rear sides of anchor falling department anchor post, the haulage rope tightening mechanism is located the 14 rear sides of paying out machine and both fixed mounting on the translation car 12, the tension detection device is located the haulage rope tightening mechanism front side.
Therefore, the anchor post at the anchor-lifting position is a contact net post at the front end in the constructed anchor section, and the anchor post 3 at the anchor-dropping position is a contact net post at the rear end in the constructed anchor section.
The haulage rope tightening mechanism is located the anchor post 3 rear side of anchor department that falls to translation car 12 is located anchor post 3 rear side of anchor department that falls. And the clear distance between the translation vehicle 12 and the anchor-falling side conversion column 7 is 10m to 15 m. During actual construction, the clear distance between the translation vehicle 12 and the anchor-falling side conversion column 7 can be correspondingly adjusted according to actual requirements. Wherein the clear distance between the translation car 12 and the anchor-side column 7 refers to the clear distance between the translation car 12 and the anchor-side column 7 in the extending direction of the electrified railway 11.
As shown in fig. 4, adopt the utility model discloses when carrying out the stringing to contact net clue 4 of any anchor block in the contact net of being under construction, including following step:
step one, preparation work before tightening: hanging pulleys 2 on anchor columns 3 at anchor falling positions of current constructed anchor sections, and moving the traction rope tightening mechanisms of the automatic wire tightening devices in place, so that the traction rope tightening mechanisms and anchor falling side conversion columns 7 of the current constructed anchor sections are respectively arranged on two sides of the anchor columns 3 at the anchor falling positions; meanwhile, a wire clamping device 8 is fixed on a cable section between an anchor post 3 at the anchoring position and an anchor side conversion post 7 in the currently erected cable, and the tensioning connecting end of the traction rope 1 in the automatic wire tightening device is connected with the wire clamping device 8 after passing through a pulley 2;
the currently erected cable is a contact network cable 4 which is tightened by adopting the automatic cable tightening device in the currently constructed anchor section, and the contact network cable 4 is a catenary cable or a contact line; the two ends of the currently erected cable are both provided with contact net compensation devices, one end of the currently erected cable is an anchor lifting end, and the other end of the currently erected cable is an anchor dropping end; the transmission ratio of the contact net compensation device is 1: n, wherein n is a positive integer and is more than or equal to 2; the weight of a weight in the contact net compensation device is G, and the unit of G is kN; wherein, the anchor dropping end of the currently erected cable is positioned at one side of the anchor post 3 at the anchor dropping position;
step two, tightening the wire: starting the electric driving mechanism of the traction rope tightening mechanism, and driving a winding drum 5 to rotate through the electric driving mechanism; gradually tensioning the currently erected cable through the hauling rope 1 in the rotation process of the winding drum 5 to finish the cable tensioning process of the currently erected cable; after the electric driving mechanism is started, the tension of the traction rope 1 is detected in real time through the tension detection device;
in this step, when the currently erected cable is gradually tightened by the hauling rope 1, the process is as follows:
step 201, quick wire tightening: after the electric driving mechanism is started, the rotating speed of the winding drum 5 is adjusted by controlling the electric driving mechanism to enable the moving speed of the traction rope 1 to be V1, the winding drum 5 is driven to rotate continuously by the electric driving mechanism until the tension detection device detects that the tension value F of the traction rope 1 is F1, and the process of quickly tightening the currently erected rope is completed;
in this step, the moving speed of the traction rope 1 is V1; wherein V1 is 18-25 m/min; f1 ═ c1 × n × G, c1 is a constant and the range of c1 is 0.6 to 0.75;
step 202, releasing and tightening the wire: when the tension detection device detects that the tension value F of the traction rope 1 is F1, the electric driving mechanism is controlled to adjust the rotating speed of the winding drum 5 to enable the moving speed of the traction rope 1 to be V2, the winding drum 5 is driven to continuously rotate by the electric driving mechanism until the tension detection device detects that the tension value F of the traction rope 1 is F2, and the process of releasing and tightening the currently erected rope is completed;
in this step, the moving speed of the traction rope 1 is V2; wherein V2 is 12-15 m/min; f2 ═ c2 × n × G, c2 is a constant and the range of c2 is 0.9 to 1;
step 203, slow-speed tightening: when the tension detection device detects that the tension value F of the traction rope 1 is F2, the electric driving mechanism is controlled to adjust the rotating speed of the winding drum 5 to enable the moving speed of the traction rope 1 to be V3, meanwhile, the rising height of a weight of a contact net compensation device arranged on the anchor-raising end of the currently erected rope is judged, and when the rising height of the weight of the contact net compensation device arranged on the anchor-raising end is H, the tightening process of the currently erected rope is completed;
in this step, the moving speed of the traction rope 1 is V3; wherein V3 is 3-5 m/min; h is a wire tightening termination time judgment threshold value of the currently erected cable, wherein H is n x H, H is a preset displacement influence value of the cable in the anchoring process of the anchoring end, the unit of H is cm, and the value range of H is 9 cm-11 cm.
In this embodiment, step 201 is as described above
In step 202, c2 is 1.
During actual construction, the values of c1 and c2 can be adjusted correspondingly according to specific requirements.
Step one, G ═ mg × 10-3Wherein m is the mass of the weight in the contact net compensation device and the unit thereof is kg, G is the gravity acceleration and G is 9.8N/kg, and G is the gravity borne by the weight in the contact net compensation device.
The moving speed of the traction rope 1 in the step 201, the step 202 and the step 203 is the moving speed of the traction rope 1 between the pulley 2 and the traction rope tightening mechanism.
In this embodiment, V1 is 20m/min in step 201, V2 is 10m/min in step 202, and V3 is 4m/min in step 203.
During actual construction, the values of V1, V2 and V3 can be adjusted according to specific requirements.
In this embodiment, the transmission ratio of the catenary compensation device is 1: 3, and n is 3.
When actually tightening, in step 201, the moving speed of the hauling rope 1 is adjusted to V1, so as to achieve the purpose of quickly tightening the rope, effectively improve the tightening speed of the currently erected rope, and accelerate the tightening process of the currently erected rope.
When the tension detecting device detects that the tension value F of the hauling rope 1 is F1, because the currently erected cable is already erected at the moment, the moving speed of the hauling rope 1 is reduced to V2, the cable tensioning process is slowed down, the problems that the cable tensioning process of the currently erected cable fails due to excessive tensioning caused by too high cable tensioning speed are prevented, meanwhile, the cable tensioning process of the currently erected cable is conveniently and effectively monitored, the cable tensioning completion time of the currently erected cable is more accurately mastered, the cable tensioning construction quality of the currently erected cable is ensured, and the purpose of completing the cable tensioning process of the currently erected cable at one time with high quality is achieved.
When the tension value F of the rope 1 to be hauled in step 203 is F2, the currently erected rope is about to complete the tightening, so the moving speed of the rope 1 is further reduced to V3, so that the tightening process of the currently erected rope is more accurately monitored, the tightening can be timely stopped, the tightening stop time of the currently erected rope can be accurately controlled, the electric driving mechanism can be timely turned off, the tightening process of the currently erected rope can be guaranteed to be completed in high quality, and the problem that the tightening is early bound or the tightening is late ended is solved.
During actual construction, after the tightening is completed, the currently erected cable is subjected to the anchoring process, and particularly when the overhead line system compensation device is installed at the anchoring end of the currently erected cable, the currently erected cable inevitably moves to one side of the anchoring position by a certain distance, so that the currently erected cable is loosened to a certain degree, and the tightening effect of the currently erected cable is affected. The utility model discloses in when judging the termination time of the thread of erectting at present, combine the displacement influence value H of anchor end anchor in-process thread that falls of preset to confirm, and judge H as the tight line termination time of judging the threshold value to the thread of erectting at present with n × H, not only judge accuracy and easily operation, constructor can be simple and convenient, carry out the accuracy assurance to the termination time of the thread of erectting at present fast, thereby can ensure that the thread of erectting at present carries out the process more convenient to operate and can ensure the tight line effect of the thread of erectting at present.
When the tightening termination time of the currently erected thread is judged by taking H as a judgment threshold value n x H, the operation is easy, the operability is strong, the thread displacement caused in the anchor falling process of the currently erected thread can be compensated, the tightening effect of the currently erected thread is ensured, and the problem of thread loosening caused by anchor falling after the tightening is finished is avoided.
In this embodiment, when tightening the cable in step two, after starting the electric driving mechanism, firstly through controlling the electric driving mechanism adjusts the moving speed of the hauling rope 1 to V1 to tighten the cable quickly for the currently erected cable, the quick tightening process is through the tension detecting device detects the tension value F of the hauling rope 1 in real time, and adjusts the moving speed of the hauling rope 1 according to the tension value F of the hauling rope 1: when the tension value F of the traction rope 1 is F1, the electric driving mechanism is controlled to adjust the moving speed of the traction rope 1 to V2 so as to slowly tighten the currently erected cable; the in-process of releasing the tight line is passed through the tension detection device carries out real-time detection to the tension value F of haulage rope 1 to adjust the travelling speed of haulage rope 1 according to the tension value F of haulage rope 1: when the tension value F of the traction rope 1 is F2, the electric driving mechanism is controlled to adjust the moving speed of the traction rope 1 to V3 so as to perform slow wire tightening on the currently erected cable; in the process of slow line tightening, the rising height of a balance weight of a contact net compensation device arranged on the anchor-lifting end of the currently erected cable is judged: and when the rising height of a weight of the overhead line system compensation device arranged on the anchor lifting end is equal to H, the line tightening process of the currently erected cable is completed within the line tightening termination time of the currently erected cable.
And step 203, when the rising height of a weight of the overhead line system compensation device arranged on the anchor lifting end is equal to H, finishing the wire tightening process of the currently erected cable, and closing the electric driving mechanism.
When actually tightening, the constructor at the anchor falling position can manually open and close the electric driving mechanism, and the constructor at the anchor falling position can also manually control the rotating speed of the electric driving mechanism, and the rotating speed of the electric driving mechanism is manually controlled to adjust the moving speed of the traction rope 1.
And when the rising height of the weight of the contact net compensation device arranged on the anchor lifting end is judged, a constructor at the anchor lifting position can manually measure the rising height of the weight, so that the actual construction is very simple and convenient.
And step two, after the line is tightened, connecting the anchor dropping end of the contact net cable 4 with a contact net compensation device arranged on the anchor post 3 at the anchor dropping position, completing the anchor dropping process of the contact net cable 4, and erecting the contact net cable 4 on the anchor post 3 at the anchor dropping position.
When a catenary cable 4 of the constructed catenary is erected, firstly erecting the catenary of the constructed catenary; and after the carrier cable is erected, erecting the contact line.
The contact suspension part of the constructed contact net adopts a full-compensation chain-shaped suspension mode or a semi-compensation chain-shaped suspension mode, and the constructed contact net is a full-compensation chain-shaped suspension contact net or a semi-compensation chain-shaped suspension contact net. In the first step, the transmission ratio of the contact net compensation device is 1: n, and the tension of a compensation rope in the contact net compensation device is 1/n of the tension of a connected contact net rope 4.
In this embodiment, the contact net of being under construction is full compensation chain shape suspension contact net, contact net compensation arrangement adopts three assembly pulley structures, contact net compensation arrangement's drive ratio is 1: 3, the tension of compensation rope among the contact net compensation arrangement is the contact net cable 4 tensile that connects
In this embodiment, the weight of the contact line compensation device installed at the two ends of the contact line is 0.5kg, and the weight of the contact line compensation device installed at the two ends of the catenary is 0.5kgIt is 0.5kg, i.e. m is 0.5 kg. Thus, in step one, G is 500kg × 9.8N/kg × 10-3＝4900N×10-3＝4.9kN.
In this embodiment, when the catenary cable 4 of any one anchor section in the fully-compensated chain-shaped suspension catenary is erected, the catenary of the constructed anchor section is firstly erected, and the catenary of the constructed anchor section is the currently erected cable in the first step and the second step. When the catenary of the constructed anchor section is erected, the translation vehicle 13 is moved to the position of the anchor post at the anchoring position, and the front end of the catenary is connected with the catenary compensation device distributed on the anchor post at the anchoring position; then, paying off the catenary by using a paying-off mechanism 14, driving the paying-off mechanism 14 and the traction rope tightening mechanism to synchronously move backwards along the electrified railway 11 by using a translation vehicle 13 in the paying-off process, and erecting the contact line on each contact net support post in the constructed anchor section from front to back in the paying-off process until the erection process of the catenary on the anchor falling side conversion post 7 is completed, wherein the detailed process is shown in fig. 1; then, finishing the process of tightening the catenary according to the method from the step one to the step two; and finally, anchoring the catenary cable, specifically, cutting off the catenary cable, separating the catenary cable from the pay-off mechanism 14 to obtain an anchored end of the catenary cable, and connecting the anchored end of the catenary cable with a contact net compensation device arranged on an anchor column 3 at the anchored position to complete the erection process of the catenary cable.
In this embodiment, after the catenary of the constructed anchor segment is erected, the contact line of the constructed anchor segment is erected, and at this time, the contact line of the constructed anchor segment is the currently erected catenary in the first step and the second step. When a contact line of a constructed anchor section is erected, the translation trolley 13 is moved to the position of an anchor column at the anchoring position, and the front end of the contact line is connected with the contact net compensation device arranged on the anchor column at the anchoring position; then, paying off the contact line by using a paying-off mechanism 14, driving the paying-off mechanism 14 and the traction rope tightening mechanism to synchronously move backwards along the electrified railway 11 by using a translation vehicle 13 in the paying-off process, hanging the contact line on the erected catenary from front to back in the paying-off process, and erecting the contact line on each contact line support post in the constructed anchor section from front to back until the erecting process of the contact line on the anchor falling side conversion post 7 is completed, wherein the detailed process is shown in fig. 1; then, according to the method from the step one to the step two, finishing the wire tightening process of the contact wire; and finally, performing anchor dropping on the contact line, specifically, cutting off the contact line, separating the contact line from the pay-off mechanism 14 to obtain an anchor dropping end of the contact line, and connecting the anchor dropping end of the contact line with a contact line compensation device arranged on an anchor column 3 at the anchor dropping position to complete the erection process of the contact line.
During actual construction, the constructed contact network can also be a semi-compensation chain-shaped suspension contact network, the contact network compensation device adopts a two-pulley-block structure, the transmission ratio of the contact network compensation device is 1: 2, and the tension of a compensation rope in the contact network compensation device is half of the tension of a connected contact network cable 4.
When the constructed contact net is a semi-compensation chain-shaped suspension contact net, only the lower anchor parts at two ends of the contact line are provided with the contact net compensation devices, and the lower anchor parts at two ends of the catenary are hard anchors. At this moment, only the contact wire of the anchor section of being under construction adopts the utility model discloses carry out the stringing. In this embodiment, the weight of the contact line compensation device installed at both ends of the contact line is 0.5kg, that is, m is 0.5 kg. When a catenary cable 4 of any one anchor section in a semi-compensation chain-shaped suspension catenary is erected, firstly, a catenary of the constructed anchor section is erected according to a conventional catenary erection method, and the lower anchor parts at two ends of the catenary are hard anchors. And when the carrier cable is erected, the carrier cable is respectively erected on each contact net support in the constructed anchor section from front to back. And after the erection of the catenary of the constructed anchor section is finished, erecting a contact line of the constructed anchor section, wherein the contact line of the constructed anchor section is the currently erected cable in the first step and the second step. When a contact line of a constructed anchor section is erected, the translation trolley 13 is moved to the position of an anchor column at the anchoring position, and the front end of the contact line is connected with the contact net compensation device arranged on the anchor column at the anchoring position; then, paying off the contact line by using a paying-off mechanism 14, driving the paying-off mechanism 14 and the traction rope tightening mechanism to synchronously move backwards along the electrified railway 11 by using a translation vehicle 13 in the paying-off process, hanging the contact line on the erected catenary from front to back in the paying-off process, and erecting the contact line on each contact line support post in the constructed anchor section from front to back until the erecting process of the contact line on the anchor falling side conversion post 7 is completed, wherein the detailed process is shown in fig. 1; then, according to the method from the step one to the step two, finishing the wire tightening process of the contact wire; and finally, performing anchor dropping on the contact line, specifically, cutting off the contact line, separating the contact line from the pay-off mechanism 14 to obtain an anchor dropping end of the contact line, and connecting the anchor dropping end of the contact line with a contact line compensation device arranged on an anchor column 3 at the anchor dropping position to complete the erection process of the contact line.
In the embodiment, the distance between the front contact net support and the rear contact net support in the constructed anchor section is 50m, namely the distance between the anchor column 3 at the anchor falling position and the anchor falling side conversion column 7 is 50 m; the transverse distance between the translation vehicle 12 and the anchor post 3 at the anchoring position is the distance between the electrified railway 11 and the anchor post 3 at the anchoring position.
In this embodiment, the position of the translation vehicle 12 is fixed during the preparation process before the wire tightening in the step one and during the wire tightening in the step two.
During actual construction, a contact net anchor dropping person firstly hangs the prepared pulley 2 on the anchor post 3 at the anchor dropping position, when a cable needing to be tensioned is pulled or pushed to the position 10 m-15 m behind the anchor post 3 at the anchor dropping position by using the pay-off mechanism 14 to stop, a cable tightening operator starts the electric driving mechanism and enables the electric driving mechanism to reversely rotate, the cable dropping auxiliary person pulls the tensioning connecting end of the traction rope 1 to the position of the anchor post 3 at the anchor dropping position, then pulls out the traction rope 1 through the pulley 2 and connects with the cable clamping device 8 on the cable needing to be tensioned (namely the contact net cable 4), and accurate work before the cable tightening is completed. When actually tightening the cable, the cable tightening operator starts the electric driving mechanism and enables the electric driving mechanism to rotate positively and drive the winding drum 5 to rotate, and the winding drum 5 gradually tightens the cable to be tightened through the traction rope 1 in the rotating process until the cable tightening process of the cable to be tightened is completed. After the electric driving mechanism is started, the tension of the traction rope 1 is detected in real time through the tension detection device, so that the tension of a cable needing to be tensioned in the cable tightening process can be synchronously mastered.
In the process of tightening the contact network cable 4 of the constructed contact network, a constructor at the anchor lifting position judges the falling weight rising height of a contact network compensation device arranged on the anchor lifting end of the contact network cable 4, and judges whether the tightening process is finished or not according to the falling weight rising height of the contact network compensation device arranged on the anchor lifting end.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (9)
1. An automatic wire tightening device is characterized in that: the tensioning device comprises a wire tensioning mechanism for tensioning a wire in a constructed anchor section and a pulley (2) hung on an anchor post (3) at the anchoring position of the constructed anchor section, wherein the pulley (2) is hung on the upper part of the anchor post (3) at the anchoring position; the constructed anchor section is one of the constructed contact networks, the anchor column (3) at the anchoring position is a contact network support column at the anchoring position of a contact network cable (4) erected in the constructed anchor section, and the contact network cable (4) is a messenger cable or a contact line; the cable needing to be tensioned is a contact network cable (4) erected in a constructed anchor section or an additional contact network lead, and the additional contact network lead is a power supply line, a return line or an overhead ground wire; the wire tensioning mechanism comprises a traction rope (1), a tension detection device for detecting the tension of the traction rope (1) in real time and a traction rope tightening mechanism, wherein the traction rope tightening mechanism comprises a winding drum (5) for winding the traction rope (1) and an electric driving mechanism for driving the winding drum (5) to rotate, the tension detection device is arranged on the traction rope (1), and the winding drum (5) is in transmission connection with the electric driving mechanism through a transmission mechanism; one end of the traction rope (1) is wound on the winding drum (5), the other end of the traction rope (1) is a tensioning connecting end, a wire clamping device (8) is fixed on a cable section, located between the anchor post (3) at the anchoring position and the anchor side conversion post (7), in the cable to be tensioned, the tensioning connecting end is connected with the wire clamping device (8) through a pulley (2), and a detachable connecting piece (6) used for being connected with the wire clamping device (8) is fixed on the tensioning connecting end; the anchor falling side conversion column (7) is a contact net support column adjacent to the anchor falling position anchor column (3) in the constructed anchor section, and the traction rope tightening mechanism and the anchor falling side conversion column (7) are respectively arranged on two sides of the anchor falling position anchor column (3).
2. An automatic tensioner as claimed in claim 1, wherein: the tension detection device is a tension tester (10), and the detachable connecting piece (6) is a hook and is hung on the wire clamping device (8).
3. An automatic tensioner according to claim 1 or 2, wherein: the constructed contact network is a contact network of the electrified railway (11), and the traction rope tightening mechanism is placed on a translation vehicle (12) capable of moving back and forth on the electrified railway (11); the translation car (12) is a transfer car which is driven by a contact net rail car of a constructed contact net to move back and forth and drives the traction rope tightening mechanism to move synchronously in the moving process.
4. An automatic tensioner according to claim 1 or 2, wherein: the traction rope tightening mechanism further comprises a rack (9), the winding drum (5) and the electric driving mechanism are both mounted on the rack (9), and the rack (9) is fixedly mounted on a translation vehicle (12); the tension detection device is installed on the rack (9) through an installation rack (13), the tension detection device is connected with the installation rack (13) in an articulated mode, and the installation rack (13) is fixedly installed on the rack (9).
5. An automatic tensioner as claimed in claim 4, wherein: the translation vehicle (12) is a pay-off vehicle used in the process of erecting the cable needing to be tensioned, and a pay-off mechanism (14) for paying off the cable needing to be tensioned is arranged on the translation vehicle (12).
6. An automatic tensioner as claimed in claim 4, wherein: the anchor falling side conversion column (7) is located at the front side of an anchor falling position anchor column (3), the traction rope tightening mechanism is located at the rear side of the anchor falling position anchor column (3), the traction rope tightening mechanism is located at the rear side of a pay-off mechanism (14) and is fixedly mounted on a translation vehicle (12), and the tension detection device is located at the front side of the traction rope tightening mechanism.
7. An automatic tensioner as claimed in claim 4, wherein: the translation trolley (12) is a flat car.
8. An automatic tensioner as claimed in claim 4, wherein: the mounting rack (13) is fixedly mounted on the upper portion of the front side of the rack (9).
9. An automatic tensioner according to claim 1 or 2, wherein: the pulley (2) is hung on anchor bearing angle steel (19) or line anchor angle steel (20) arranged on the anchor post (3) at the anchor falling position.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921587573.3U CN210404563U (en) | 2019-09-23 | 2019-09-23 | Automatic wire tightening device |
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| CN201921587573.3U CN210404563U (en) | 2019-09-23 | 2019-09-23 | Automatic wire tightening device |
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| CN210404563U true CN210404563U (en) | 2020-04-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110459987A (en) * | 2019-09-23 | 2019-11-15 | 中铁二十局集团电气化工程有限公司 | Contact network construction automatic wire tensioning device and method |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110459987A (en) * | 2019-09-23 | 2019-11-15 | 中铁二十局集团电气化工程有限公司 | Contact network construction automatic wire tensioning device and method |
| CN110459987B (en) * | 2019-09-23 | 2024-04-16 | 中铁二十局集团电气化工程有限公司 | Automatic wire tightening device and method for overhead line system construction |
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