Method for winding of winching machine with tension

Abstract

The invention relates to the technical field of railway construction, in particular to a method for stringing a winching machine with tension, which comprises the following steps: mounting the winching machine at an anchor weighing end of a stringing anchor section; a pay-off rack is mounted at the anchor falling end of the stringing anchor section, and a tension controller is arranged on the pay-off rack; a fixed pulley is arranged on each overhead line system cantilever in the whole anchor section between the anchor weighing end and the anchor falling end; a steel wire rope is pre-laid on the whole anchor section, and the pre-laid steel wire rope penetrates through a fixed pulley on the cantilever; a wire bearing disc is installed on the pay-off rack, a wire bearing starting point is connected with one end of a pre-laid steel wire rope, and the other end of the pre-laid steel wire rope is connected with a winching machine; the winching machine is started, the winching machine drives the pre-laid steel wire rope to drag the bearing wire to be unwound, and the tension controller applies rotation resistance to the pay-off rack to achieve tension generation of the bearing wire. By means of the stringing mode of the winching machine with the tension, the fixed pulley on the cantilever is matched, the pre-laid steel wire rope can be used for dragging the bearing wire to be erected in the air in the whole process, the bearing wire cannot be abraded due to the tension, and the stringing and later operation quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of railway construction, in particular to a method for stringing a wire with a tension capstan. Background Art

[0002] With the rapid development of railways, the importance of the catenary relationship has become increasingly apparent, especially in the construction of the overhead contact network, from the adjustment of the cable installation to the elimination of hard points. However, due to factors such as the node construction period and track laying progress, the site does not have the conditions for installing the train cable. In order to ensure the quality and construction period of the cable, it is necessary to innovate the cable installation method.

[0003] Traditional manual wiring is usually carried out before track laying is completed to avoid prolonging the wiring period after track laying. However, the wires are not laid out at a uniform speed and are easily dragged on the ground during the wiring process, causing damage to the wires. In addition, many hard points are formed, which can cause arcing during subsequent train operation, affecting driving and personal safety. Summary of the invention

[0004] The purpose of the present invention is to provide a method for laying wires with a tension capstan, aiming at the problem that the traditional manual wire laying in the prior art is mostly carried out before track laying is completed, so as to avoid prolonging the wire laying period after track laying, but the wires are easily dragged on the ground during the wire laying process due to uneven wire laying speed, resulting in wire damage, and forming many hard points, which causes arcing during the later operation of trains and other problems that affect driving and personal safety.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A method for laying a line for a tensioned winch, comprising the following steps:

[0007] S1. Install a capstan at the anchoring end of the cable anchor section;

[0008] A pay-off frame is installed at the anchoring end of the line anchor section, and a tension controller is provided on the pay-off frame;

[0009] A fixed pulley is arranged on each contact network arm in the entire anchor section between the anchoring end and the anchoring end;

[0010] The entire anchor section is pre-coated with a steel wire rope, and the pre-coated steel wire rope passes through the fixed pulley on the arm;

[0011] A conductor drum is installed on the pay-off frame, and a starting point of the conductor drum is connected to one end of the pre-applied steel wire rope, and the other end of the pre-applied steel wire rope is connected to the capstan;

[0012] S2, starting the capstan, the capstan drives the pre-applied steel wire rope to pull the conductor to be stretched out, and the tension controller applies rotational resistance to the pay-off frame to generate tension on the conductor;

[0013] S3. After the supporting conductor is deployed from the anchoring end to the anchoring end, the fixing of the supporting conductor of the entire anchoring section is completed.

[0014] The method for laying wires with a tension capstan described in the present invention is compared with the existing manual laying method when track laying is not completed. The method for laying wires with a tension capstan is formed by the capstan, the pay-off frame and the tension controller. In conjunction with the fixed pulley on the wrist arm, the pre-applied steel wire rope can be used to pull the supporting wire to be laid in the air throughout the entire process. The supporting wire will not be worn by dragging on the ground due to the existence of tension, thereby improving the quality of laying wires and subsequent operations. At the same time, compared with the existing method of laying wires by installing trains after track laying, the laying method with a tension capstan is more convenient. The wire laying method can be carried out simultaneously or in priority to track laying, and the construction period can be advanced by 2 months. The wire laying method with tension capstan does not involve large-scale mechanical operations, and the driving and personnel safety are more guaranteed. The installation effect is equivalent to the existing installation train wire laying, reducing the installation train rental costs, and the overall man-machine and material costs are reduced by 60% compared with the existing train installation method. This method is suitable for the installation of supporting conductors in conventional railway stations and the installation of load-bearing cables for section mainlines, suitable for the installation of supporting conductors in large EMU depots (with low speed and many turnouts), and suitable for the installation of supporting conductors in existing line reconstruction.

[0015] As a preferred technical solution of the present invention, in step S1, a crane is used to lift the pay-off frame and install it on the anchor end.

[0016] As a preferred technical solution of the present invention, in step S1, the supporting conductor and the pre-coated steel wire rope are connected by using a steel wire sleeve.

[0017] As a preferred technical solution of the present invention, in step S2, the capstan grinder rotates at a constant speed.

[0018] As a further preferred technical solution of the present invention, the rotation speed of the capstan is not greater than 25 m / min.

[0019] As a preferred technical solution of the present invention, the diameter of the pre-coated steel wire rope is 0.6cm-1.2cm.

[0020] As a preferred technical solution of the present invention, the fixed pulley is connected to the arm via a first mounting seat.

[0021] As a further preferred technical solution of the present invention, a partition seat is provided on the first mounting seat, a wire pressing wheel is provided on the partition seat, the wheel surface of the fixed pulley is provided with a circle of circular arc grooves, the pre-applied steel wire rope is arranged in the circular arc groove, the wire pressing wheel abuts against the pre-applied steel wire rope, and the rotation plane of the wire pressing wheel is consistent with the rotation plane of the fixed pulley.

[0022] In this way, the pre-coated steel wire rope or the subsequent carrying wire is crimped into the circular arc groove by the crimping wheel, so as to prevent the pre-coated steel wire rope and / or the carrying wire from detaching from the fixed pulley during traction.

[0023] As a further preferred technical solution of the present invention, the wire crimping wheel is rotatably connected to a second mounting seat, the second mounting seat is connected to a guide column, the partition seat is provided with a guide hole, the guide column is slidably fitted in the guide hole, and a spring is provided on the outer sleeve of the guide column, and the two ends of the spring are respectively abutted against the partition seat and the second mounting seat.

[0024] In this way, the wire pressing wheel crimps the pre-coated steel wire rope or the subsequent supporting wire into the arc groove through the elastic force of the spring. Since the diameters of the pre-coated steel wire rope and the supporting wire are most likely different, especially the diameter of the connection between the two is larger, the wire pressing wheel can adaptively act on the top of the wire ropes of different diameters through the spring, and crimp the wire ropes well onto the fixed pulley.

[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0026] 1. Compared with the existing manual wire-laying method when track laying is not completed, the wire-laying method with a tension capstan described in the present invention is formed by the capstan, the pay-off frame and the tension controller. In conjunction with the fixed pulley on the arm, the pre-applied steel wire rope can be used to pull the supporting wire to be laid in the air. The supporting wire will not be worn by dragging on the ground due to the tension, thereby improving the quality of wire-laying and subsequent operation.

[0027] 2. Compared with the existing method of installing train wiring after track laying, the method of installing train wiring with tension capstan described in the present invention can be carried out simultaneously or prior to track laying, and the construction period can be shortened by 2 months. Moreover, the method of installing train wiring with tension capstan does not involve large-scale mechanical operations, and the driving and personnel safety are more guaranteed. The installation effect can be equivalent to the existing installation train wiring, reducing the installation train rental cost, and the overall labor, machine and material costs are reduced by 60% compared with the existing installation train method.

[0028] 3. The method of laying wires with a tensioned capstan described in the present invention is applicable to the construction of the carrying wires in conventional railway stations and the carrying cables of section main lines, to the laying of carrying wires in large EMU depots (with low speed and many turnouts), and to the laying of carrying wires in the reconstruction of existing lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic elevation view of the tension capstan wire.

[0030] Figure 2 It is a schematic diagram of the structure of the fixed pulley and the wire pressing wheel.

[0031] Markings in the figure:

[0032] 1- Grinding machine;

[0033] 2-pay-off rack, 21-tension controller;

[0034] 3- wrist and arm;

[0035] 4-fixed pulley, 41-first mounting seat, 42-partition seat;

[0036] 5-Pre-applied wire rope;

[0037] 6- conductor drum, 61- conductor;

[0038] 7-wire pressing wheel, 71-second mounting seat, 72-guide column, 73-spring. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with test examples and specific implementation methods. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0040] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or are the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0041] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0042] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0043] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0044] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0045] In the related technology, traditional manual wire stringing is mostly carried out before track laying is completed to avoid prolonging the wire stringing period after track laying. However, due to the uneven speed of wire laying, the wire is easy to drag on the ground during the wire stringing process, causing wire damage, and forming many hard points, which will cause arcing during the later train operation, affecting driving and personal safety. For this reason, the technical solution of this application is produced, and the following is combined with Figure 1 to Figure 2 To elaborate.

[0046] Example 1

[0047] like Figure 1 As shown, a method for laying wires for a tensioned winch mill according to the present invention comprises the following steps:

[0048] 1. Construction preparation.

[0049] Before construction, personnel, machinery and materials were in place, and technical briefing and training for personnel, and inspection and acceptance of materials and machinery were completed.

[0050] In the previous process, the contact network steel column assembly, upper base and arm 3 installation are completed and a complete anchor section is formed, which is ready for line erection.

[0051] 2. The pay-off frame 2 is equipped with a tension controller 21.

[0052] Check that the connecting parts of the pay-off frame 2 are stable and reliable and rotate normally.

[0053] The tension controller 21 is installed in advance on the pay-off frame 2, and the tension controller 21 is installed at the bottom to facilitate operation by personnel.

[0054] Check whether the connection between the tension controller 21 and the pay-off frame 2 is normal.

[0055] 3. Install the fixed pulley 4 and pre-apply the steel wire rope 5.

[0056] The fixed pulley 4 is installed and fixed in advance at each arm 3 (soft crossover) of the pre-erection anchor section, and the fixed pulley 4 needs to be checked in advance to ensure normal rotation.

[0057] After the fixed pulley 4 is installed, a pre-coated steel wire rope 5 (with a diameter of 0.6 cm-1.2 cm) is arranged in advance, and the pre-coated steel wire rope 5 passes through the fixed pulley 4 as a whole.

[0058] 4. Install and connect the capstan grinder 1.

[0059] According to the actual situation on site, the capstan 1 is fixed to the anchoring end of the cable anchor section, and the capstan 1 is fixedly connected to the existing contact network steel column on site.

[0060] One end of the capstan 1 is stably connected to the pre-applied steel wire rope 5, and a trial run is performed in advance to ensure that the capstan 1 drives the wire rope to be released.

[0061] According to the model of the capstan grinder 1, the rotation speed is controlled at a uniform speed of no more than 25 meters per minute.

[0062] 5. Install the pay-off frame 2.

[0063] According to the actual situation on site, the pay-off frame 2 is placed to the anchor end of the line anchor section by a crane, and the conductor drum 6 is placed on the pay-off frame 2 .

[0064] The conductor drum 6 is rotated to connect the starting point of the conductor 61 to one end of the pre-applied steel wire rope 5 through a steel wire sleeve to form a whole, thereby ensuring that the conductor 61 cannot drag on the ground.

[0065] 6. The supporting conductor 61 is installed.

[0066] Before formal deployment, confirm again that all parts are connected reliably, and the pre-applied steel wire rope 5 is located in the middle of the fixed pulley 4 without any jamming.

[0067] The anchoring end rotates the capstan 1 at a constant speed, and the capstan 1 drives the pre-coated steel wire rope 5 and the supporting wire 61 to be deployed.

[0068] The anchor end starts to be deployed according to the supporting wire 61, that is, the fixing personnel are arranged to apply tension through the tension controller 21, the tension is controlled to be no more than 3KN, and the basic principle is that the supporting wire 61 does not drag on the ground.

[0069] The supporting conductor 61 is installed at a uniform speed until the head end is close to the anchoring end, and personnel are arranged to do the work of anchoring the supporting conductor 61 (including the anchoring end).

[0070] After the installation of the supporting wire 61 is completed, the work of the supporting cable reversal and positioning is completed in time to prevent the supporting wire 61 from having defects such as hard spots due to long-term non-returning.

[0071] 7. Construction is completed.

[0072] After the installation of the supporting conductor 61 of the entire anchor section is completed, the pre-applied steel wire rope 5 and the fixed pulley 4 are removed on site.

[0073] According to the construction arrangement, determine whether it is necessary to move the positions of the capstan 1 and the pay-off frame 2, and make preparations for subsequent cable stringing.

[0074] Before the loop wiring construction, recheck whether the connections at all parts are reliable.

[0075] The tensioned capstan wire erection can meet the requirements of overhead wire erection for vehicle speeds ≤ 100km / h. It is suitable for the conditions where the pre-station construction period is delayed and the actual post-station construction time cannot meet the node construction period requirements (the overhead wire needs to be laid ahead of track to adjust the erection of the overhead wire). It has advantages in terms of construction period, safety, quality, cost, etc.

[0076] Compared with the existing manual stringing method when track laying is not completed, the method of stringing a line with a tension capstan described in this embodiment forms a stringing method with a tension capstan through the capstan 1, the pay-off frame 2 and the tension controller 21. In conjunction with the fixed pulley 4 on the arm 3, the pre-coated steel wire rope 5 can be used to pull the supporting conductor 61 to be set up in the air throughout the entire process. The supporting conductor 61 will not be dragged on the ground and worn due to the existence of tension, thereby improving the quality of stringing and subsequent operations.

[0077] Compared with the existing method of installing train wiring after track laying, the method of installing train wiring with a tension capstan described in this embodiment can be carried out simultaneously with or before track laying, and the construction period can be shortened by 2 months. The method of installing train wiring with a tension capstan does not involve large-scale mechanical operations, and the safety of driving and personnel is more guaranteed. The installation effect is equivalent to the existing installation of train wiring, reducing the cost of installing train rental, and the overall cost of manpower, machine and materials is reduced by 60% compared with the existing method of installing trains.

[0078] The method of laying wires with a tensioned capstan described in this embodiment is applicable to the construction of supporting wires for conventional railway stations and the installation of supporting cables for section main lines, to the installation of supporting wires in large EMU depots (with low speed and many switches), and to the installation of supporting wires for the reconstruction of existing lines.

[0079] Example 2

[0080] like Figure 1 and Figure 2 As shown, in a method for stringing a wire for a tensioned capstan as described in Example 1, the fixed pulley 4 is connected to the arm 3 via a first mounting seat 41 .

[0081] A partition seat 42 is provided on the first mounting seat 41, and a wire pressing wheel 7 is provided on the partition seat 42. The wheel surface of the fixed pulley 4 is provided with a circle of arc grooves. The pre-applied steel wire rope 5 is arranged in the arc groove. The wire pressing wheel 7 abuts against the pre-applied steel wire rope 5. The wire pressing wheel 7 is rotatably connected to a second mounting seat 71, and the second mounting seat 71 is connected to a guide column 72. A guide hole is provided on the partition seat 42, and the guide column 72 is slidably matched with the guide hole. A spring 73 is provided on the outer sleeve of the guide column 72, and the two ends of the spring 73 abut against the partition seat 42 and the second mounting seat 71 respectively. The rotation plane of the wire pressing wheel 7 is consistent with the rotation plane of the fixed pulley 4.

[0082] In this way, the wire pressing wheel 7 crimps the pre-coated steel wire rope 5 or the subsequent supporting wire 61 into the arc groove through the elastic force of the spring 73, so as to prevent the pre-coated steel wire rope 5 and / or the supporting wire 61 from detaching from the fixed pulley 4 during traction. Since the diameters of the pre-coated steel wire rope 5 and the supporting wire 61 are most likely different, especially the diameter of the connection between the two is larger, the wire pressing wheel 7 can adaptively act on the top of ropes of different diameters through the spring 73, so as to crimp the ropes well onto the fixed pulley 4.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for stringing a tensioned capstan, characterized in that: The following steps are involved: S1, a capstan (1) is installed at the anchoring end of the cable anchor section; A pay-off frame (2) is installed at the anchoring end of the line anchor section, and a tension controller (21) is provided on the pay-off frame (2); A fixed pulley (4) is provided on each contact network arm (3) in the entire anchor section between the anchoring end and the anchoring end; The entire anchor section is pre-coated with a steel wire rope (5), and the pre-coated steel wire rope (5) passes through the fixed pulley (4) on the arm (3); A wire-carrying drum (6) is installed on the pay-off frame (2), and the starting point of the wire-carrying drum (61) is connected to one end of the pre-coated steel wire rope (5), and the other end of the pre-coated steel wire rope (5) is connected to the capstan (1); S2, starting the capstan (1), the capstan (1) drives the pre-coated steel wire rope (5) to pull the conductor (61) to be stretched, and the tension controller (21) applies rotational resistance to the pay-off frame (2) to generate tension on the conductor (61); S3, after the supporting conductor (61) is deployed from the anchoring end to the anchoring end, the fixing of the supporting conductor (61) of the entire anchoring section is completed.

2. The method for stringing a tensioned capstan according to claim 1, characterized in that: In step S1, the pay-off frame (2) is hoisted and installed at the anchor end by a crane.

3. The method for stringing a tensioned capstan according to claim 1, characterized in that: In step S1, the supporting conductor (61) and the pre-coated steel wire rope (5) are connected by using a steel wire sleeve.

4. The method for stringing a tensioned capstan according to claim 1, characterized in that: In step S2, the capstan (1) rotates at a constant speed.

5. The method for stringing a tensioned winch according to claim 4, characterized in that: The rotation speed of the capstan (1) is not greater than 25 m / min.

6. The method for stringing a tensioned capstan according to claim 1, characterized in that: The diameter of the pre-coated steel wire rope (5) is 0.6 cm-1.2 cm.

7. The method for stringing a tensioned capstan according to any one of claims 1 to 6, characterized in that: The fixed pulley (4) is connected to the arm (3) via a first mounting seat (41).

8. The method for stringing a tensioned winch according to claim 7, characterized in that: The first mounting seat (41) is provided with a partition seat (42), the partition seat (42) is provided with a wire pressing wheel (7), the wheel surface of the fixed pulley (4) is provided with a circle of arc groove, the pre-applied steel wire rope (5) is arranged in the arc groove, the wire pressing wheel (7) abuts against the pre-applied steel wire rope (5), and the rotation plane of the wire pressing wheel (7) is consistent with the rotation plane of the fixed pulley (4).

9. The method for stringing a tensioned capstan according to claim 8, characterized in that: The crimping wheel (7) is rotatably connected to a second mounting seat (71), the second mounting seat (71) is connected to a guide column (72), a guide hole is provided on the partition seat (42), the guide column (72) is slidably matched with the guide hole, and a spring (73) is provided on the outer sleeve of the guide column (72), and the two ends of the spring (73) are respectively abutted against the partition seat (42) and the second mounting seat (71).

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