Hole aligning device and method for high-speed rail dropper carrier cable side clamp

Abstract

The invention belongs to the technical field of catenary construction, and particularly relates to a hole aligning device and method for a high-speed rail dropper carrier cable side wire clamp, the hole aligning device comprises a base plate, a wire clamp mounting part is arranged on one side of the base plate, and a wire clamp body clamped by an electric clamping jaw is driven to move through a first electric cylinder; a lifting ring installation part is arranged on one side of the base plate and located below the wire clamp installation part, and a lifting ring body fixed between the structural part XUA and the structural part XUC is driven by a second electric cylinder to move. The wire clamp body is driven to move downwards until the inner wall of the wire clamp body makes full contact with the carrier cable and fixes the carrier cable, meanwhile, the hanging ring body is driven to move upwards, and hole alignment operation of the hanging ring body and the wire clamp body is conducted; according to the device, the hole alignment operation of the wire clamp can be completed on the premise that the carrier cable is not twisted, meanwhile, the number of components formed by the device is small, the principle is simple, operation is convenient, and the device has certain adaptability to parts with errors in different batches.

Description

Technical Field

[0001] The invention belongs to the technical field of contact network construction, and in particular relates to a hole-aligning device and method for a side wire clamp of a high-speed railway dropper string load-bearing cable. Background Art

[0002] The catenary, a high-voltage transmission line arranged in a zigzag pattern above the rails on electrified railways, is a core component of railway electrification projects. It plays a crucial role in supplying power to the pantographs of electric locomotives. In the catenary system, the contact wire directly contacts the pantographs of the vehicles to transmit power, while the catenary wires suspend the contact wires via dropper strings. These three elements work together to ensure the stable operation of electric locomotives. However, the installation of dropper strings currently relies primarily on manual labor, which is extremely inefficient given the large number of dropper strings on railway lines. Furthermore, since installation operations often take place at high altitudes, workers face numerous safety hazards, such as falling and electric shock, making it difficult to ensure safe construction.

[0003] To address the efficiency and safety issues associated with manual installation, Chinese invention patent specification CN114734883A discloses an intelligent installation system for catenary droppers. This system automatically moves along the track and precisely locates installation locations. A laser radar measurement vehicle acquires catenary parameters to determine the installation location. The system then utilizes installation fixtures, a feeding device, and a robotic arm on the work vehicle to install the catenary and contact wire connection assemblies in their respective locations. This integrates measurement, feeding, and installation functions. Multiple clamping and positioning structures ensure installation safety and accuracy, minimizing the risks of manual overhead work and improving installation efficiency.

[0004] However, when installing the side wire clamp of the catenary cable, the device needs to first place the dropper string horizontally to complete the wire clamp installation, and then rotate the dropper string 90 degrees to make it vertically downward to carry out the contact line related installation steps; during this process, the rotation operation of the dropper string can easily produce a torsional effect on the catenary cable, resulting in a decrease in the mechanical properties of the catenary cable, which in turn threatens the safety of railway operation. This defect limits the further application and promotion of this intelligent installation system. Summary of the Invention

[0005] The purpose of the present invention is to provide a hole-aligning device and method for the side wire clamp of the high-speed railway suspension string supporting cable, which can complete the hole-aligning operation of the wire clamp without twisting the supporting cable. At the same time, this device consists of fewer components, has a simple principle, is easy to operate, and has a certain adaptability to parts with errors in different batches.

[0006] The technical solutions adopted by the present invention are as follows:

[0007] A hole alignment device for a side wire clamp of a high-speed railway dropper string supporting cable comprises a base plate, a wire clamp mounting portion is provided on one side of the base plate, and a wire clamp body clamped by an electric clamping claw is driven to move by a first electric cylinder;

[0008] A lifting ring mounting portion is provided on one side of the base plate and below the wire clamp mounting portion, and a lifting ring body fixed between the structural member XUA and the structural member XUC is driven to move by a second electric cylinder;

[0009] The wire clamp body is driven to move downward until its inner wall is in full contact with the load-bearing cable and fixes the load-bearing cable. At the same time, the lifting ring body is driven to move upward to perform the hole alignment operation between the lifting ring body and the wire clamp body.

[0010] The wire clamp mounting portion includes a first mounting seat arranged on one side of the base plate, a first electric cylinder is provided on one side of the first mounting seat, a structural member SUB is provided on the output shaft of the first electric cylinder, and a structural member SUA is provided on the outer wall of the structural member SUB.

[0011] An electric clamp is provided on the outer wall of the structural member SUA, and clamps are provided at two output ends of the electric clamp, and the wire clamp body is clamped between the outer walls of the two clamps.

[0012] The lifting ring mounting portion includes a second mounting seat arranged on one side of the base plate and located below the wire clamp body, the outer wall of the second mounting seat is provided with a second electric cylinder, the output shaft of the second electric cylinder is provided with a structural part XUA, the top of the structural part XUA is provided with a U-shaped groove, and the top edge of the U-shaped groove is provided with a chamfer.

[0013] A hanging ring body is arranged between the tops of the U-shaped grooves, and the arc portion of the hanging ring body is closely attached to the chamfered corners of the U-shaped grooves.

[0014] A structural member XUC is provided on the outer wall of the structural member XUA. Cantilevers are symmetrically provided on one side of the structural member XUC. A groove is provided on one side of each of the two cantilevers, and the straight portion of the lifting ring body is fixed to the groove.

[0015] The inner wall shape of the clamp is the same as the outer contour of the wire clamp body.

[0016] A buffer groove is provided on one side of the structural member XUA.

[0017] A flexible T-shaped slot is provided on one side of the structural member XUC and between the two cantilevers.

[0018] A method for aligning holes for side wire clamps of a high-speed railway dropper string and a load-bearing cable, comprising the following steps:

[0019] Step 1: Separate the pistons of the first and second electric cylinders before use, leaving enough space for operation and for the placement of the catenary cables;

[0020] Step 2: Place the wire clamp body on the fixture, and the electric clamp drives the fixture to clamp; put the lifting ring body into the U-shaped groove of the structural part XUA and the cantilever groove of the structural part XUC to complete the part fixation;

[0021] Step 3: Move the whole machine to the predetermined position, place the load-bearing cable between the wire clamp body and the lifting ring body, and ensure that the arc axis of the wire clamp body is parallel and coplanar with the axis of the load-bearing cable;

[0022] Step 4: The first electric cylinder drives the wire clamp body to press down and fix the load-bearing cable, and the second electric cylinder drives the lifting ring body to move up to the preset position. The visual inspection device photographs the positioning hole and transmits the coordinate data to the central control computer;

[0023] Step 5: The central control machine calculates the adjustment amount of the second electric cylinder based on the positioning holes of the wire clamp body. The second electric cylinder fine-tunes the position of the lifting ring body. After visual inspection, calculation, and adjustment, the closed-loop operation is carried out until the four positioning holes on the wire clamp body and the lifting ring body are coaxially positioned.

[0024] The technical effects achieved by the present invention are:

[0025] The present invention completely avoids the risk of twisting of the load-bearing cable due to rotation of the suspension string in the traditional installation method through the innovative coordinated design of the wire clamp installation part and the lifting ring installation part, combined with the precise hole adjustment process; effectively maintains the original mechanical properties of the load-bearing cable, and eliminates the driving safety hazards caused by the degradation of the load-bearing cable performance from the root, laying a solid foundation for the stable and safe operation of the high-speed rail.

[0026] The present invention adopts an automated electric cylinder drive and visual detection feedback mechanism to replace the tedious and inefficient installation steps in traditional manual operations; through precise mechanical movement and rapid coordinate calculation and adjustment, it greatly shortens the time required for the side wire clamps of the load-bearing cables to align with the holes, realizes efficient and continuous operation, and significantly improves the overall progress of the contact network construction.

[0027] The structural part XUC in the present invention is provided with a flexible joint, which gives the device a strong adaptive adjustment capability; when faced with parts with dimensional errors in different batches, the device can automatically adjust the position and angle to a certain extent, ensuring the accuracy and stability of the hole operation, effectively improving the versatility and practicality of the device.

[0028] The present invention forms a standardized and systematic operation process for the steps of parts pre-installation, device positioning, preliminary adjustment and hole adjustment, reducing the uncertainty in the construction process; combined with high-precision visual inspection and negative feedback adjustment mechanism, it can achieve precise coaxial positioning of four holes, significantly improving the overall accuracy and quality of contact network suspension string installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1It is a three-dimensional diagram of the overall structure of the present invention;

[0030] Figure 2 It is a schematic structural diagram of the structural member XUA of the present invention;

[0031] Figure 3 It is a schematic structural diagram of the structural member XUC of the present invention;

[0032] Figure 4 It is a schematic diagram of the electric gripper structure of the present invention;

[0033] Figure 5 It is a schematic diagram of the fixture structure of the present invention;

[0034] Figure 6 It is a structural schematic diagram of the structural member SUB of the present invention;

[0035] Figure 7 It is a schematic structural diagram of the structural member SUA of the present invention;

[0036] Figure 8 This is a schematic diagram of the main structure of the wire clamp of the present invention;

[0037] Figure 9 It is a schematic diagram of the main structure of the lifting ring of the present invention;

[0038] Figure 10 It is a flow chart of equipment use of the present invention.

[0039] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0040] 1. Base plate; 2. First mounting seat; 3. First electric cylinder; 4. Structural part SUB; 5. Structural part SUA; 6. Electric gripper; 7. Clamp; 8. Wire clamp body; 9. Second mounting seat; 10. Second electric cylinder; 11. Structural part XUA; 111. U-shaped groove; 112. Buffer groove; 12. Structural part XUC; 121. Cantilever; 122. Groove; 13. Lifting ring body. DETAILED DESCRIPTION

[0041] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following examples. It should be understood that the following text is only used to describe one or more specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0042] like Figure 1-9As shown, a hole alignment device for a side wire clamp of a high-speed railway dropper string and load-bearing cable includes a base plate 1, a wire clamp mounting portion is provided on one side of the base plate 1, and the wire clamp mounting portion includes a first mounting seat 2 provided on one side of the base plate 1, a first electric cylinder 3 is provided on one side of the first mounting seat 2, a structural member SUB4 is provided on the output shaft of the first electric cylinder 3, and a structural member SUA5 is provided on the outer wall of the structural member SUB4;

[0043] An electric clamp 6 is provided on the outer wall of the structural component SUA5, and clamps 7 are provided at the two output ends of the electric clamp 6. A wire clamp body 8 is clamped between the outer walls of the two clamps 7, and the inner wall shape of the clamp 7 is the same as the outer contour of the wire clamp body 8.

[0044] According to the above structure, before use, a worker manually places the clamp body 8 onto the clamp 7 at the end of the electric jaw 6. The electric jaw 6 then drives the clamp 7 to clamp the clamp body 8. During operation, the axis of the arc of the clamp body 8 is parallel and coplanar with the axis of the catenary cable, ensuring that the inner surface of the arc of the clamp body 8 is in close contact with the catenary cable. When the catenary cable moves to the designated position, the first electric cylinder 3 moves the clamp body 8 downward until the inner wall of the clamp body 8 contacts the catenary cable and stops. The inner wall of the clamp 7 is shaped to match the outer contour of the clamp body 8, allowing it to conform to the outer contour of the clamp body 8 and clamp the clamp body 8 tightly.

[0045] A lifting ring mounting portion is provided on one side of the base plate 1 and below the wire clamp mounting portion. The lifting ring mounting portion includes a second mounting seat 9 provided on one side of the base plate 1 and below the wire clamp body 8. A second electric cylinder 10 is provided on the outer wall of the second mounting seat 9. The output shaft of the second electric cylinder 10 is provided with a structural member XUA11. A U-shaped groove 111 is provided through the top of the structural member XUA11. The top edge of the U-shaped groove 111 is chamfered. A buffer groove 112 is provided on one side of the structural member XUA11.

[0046] A lifting ring body 13 is provided between the tops of the U-shaped groove 111, and the arc portion of the lifting ring body 13 is closely attached to the chamfer of the U-shaped groove 111;

[0047] A structural member XUC12 is provided on the outer wall of the structural member XUA11, and cantilevers 121 are symmetrically provided on one side of the structural member XUC12. A groove 122 is provided on one side of each cantilever 121, and the straight part of the ring body 13 is fixed to the groove 122. A flexible T-shaped groove is provided on one side of the structural member XUC12 and located between the two cantilevers 121; the groove 122 provided, the grooves 122 on the two cantilevers 121 are consistent in width with the flat part of the ring body 13.

[0048] According to the above structure, before use, the arc part of the lifting ring body 13 is tightened to the chamfer of the U-shaped groove 111 of the structural component XUA11, and the straight part of the lifting ring body 13 is fixed with the groove 122 on the structural component XUC12 to complete the pre-installation process of the parts; during operation, the second electric cylinder 10 moves the lifting ring body 13 upward to a preset position; the provided flexible T-shaped groove and buffer groove 112 improve the flexibility of the structural component XUC12 and the structural component XUA11, and also improve their adaptability in use, thereby increasing the practicality of the equipment; the cooperation of the provided cantilever 121 and the groove 122 is further used to position and fix the lifting ring body 13, thereby increasing the stability of the fixation of the lifting ring body 13.

[0049] The first electric cylinder 3 and the second electric cylinder 10 are Misumi electric cylinders with model E-ECTL60-05-S50-RC-P400W-GD.

[0050] Working principle: Before use, separate the pistons of the first electric cylinder 3 and the second electric cylinder 10 from each other to provide workers with sufficient working space for pre-installing parts and reserve necessary gaps for the subsequent load-bearing cables to enter the designated position; Parts pre-installation: The worker manually places the wire clamp body 8 on the clamp 7 at the end of the electric clamp 6, and the electric clamp 6 firmly fixes the wire clamp body 8; At the same time, the worker places the arc part of the lifting ring body 13 close to the chamfered area of the U-shaped groove 111 of the structural component XUA11, and the straight part is inserted into the groove 122 on the cantilever 121 of the structural component XUC12, so as to achieve a stable combination of parts in the pre-installation stage; Movement of the whole machine and placement of the load-bearing cable: Move the whole machine to the predetermined working position through other mechanisms. During the installation process, correctly place the load-bearing cable between the wire clamp body 8 and the lifting ring body 13, and ensure that the axis of the arc part of the wire clamp body 8 is parallel and coplanar with the axis of the load-bearing cable, so that the wire clamp body 8 The arc of the inner wall can fit the load-bearing cable completely and evenly to form a reliable support structure; preliminary installation and position detection: after the load-bearing cable is accurately in place, the first electric cylinder 3 drives the wire clamp body 8 to move downward until its inner wall is in full contact with the load-bearing cable and fixes the load-bearing cable, and at the same time the second electric cylinder 10 drives the lifting ring body 13 to move upward to the preset installation position; at this time, the visual inspection device in the system accurately photographs the positioning holes on the wire clamp body 8 and the lifting ring body 13, and transmits the acquired hole coordinate data to the central control machine; position adjustment: the central control machine uses the positioning holes of the wire clamp body 8 as a reference to calculate the precise position adjustment that the second electric cylinder 10 needs to make; based on the calculation results, an adjustment instruction is issued, and the second electric cylinder 10 fine-tunes the position of the lifting ring body 13, and repeats the closed-loop negative feedback process of visual inspection, coordinate calculation and position adjustment until all four positioning holes are coaxially arranged.

[0051] like Figure 10 As shown, a method for aligning holes for side wire clamps of high-speed railway dropper strings and load-bearing cables specifically includes the following steps:

[0052] Step 1: Separate the pistons of the first electric cylinder 3 and the second electric cylinder 10 before use to provide sufficient working space for workers to pre-install parts and reserve the necessary gap for the subsequent load-bearing cables to enter the designated position;

[0053] In step 2, the worker manually places the clamp body 8 of the load-bearing cable string clamp on the clamp 7 at the end of the electric clamp 6, and the electric clamp 6 firmly fixes the clamp body 8. At the same time, the worker places the ring body 13 in the U-shaped groove 111 of the structural component XUA11 and the groove 122 of the cantilever 121 of the structural component XUC12, with the arc portion of the ring body 13 closely attached to the chamfered area of the U-shaped groove 111 of the structural component XUA11 and the straight portion inserted into the groove 122 on the cantilever 121 of the structural component XUC12, thus achieving a stable combination of parts during the pre-assembly stage.

[0054] Step 3: Move the entire machine to the predetermined position and place the Messenger cable between the clamp body 8 and the eye body 13. Ensure that the axis of the arc portion of the clamp body 8 is parallel and coplanar with the axis of the Messenger cable so that the arc of the inner wall of the clamp body 8 can completely and evenly fit the Messenger cable, forming a reliable support structure.

[0055] Step 4: After the catenary is accurately positioned, the first electric cylinder 3 drives the clamp body 8 downward until its inner wall fully contacts and secures the catenary. Simultaneously, the second electric cylinder 10 drives the eyebolt body 13 upward to the pre-set installation position. At this point, the visual inspection device within the system precisely photographs the locating holes on the clamp body 8 and the eyebolt body 13, and transmits the acquired hole position coordinate data to the central control computer.

[0056] In step 5, the central control machine uses the positioning holes of the wire clamp body 8 as a reference to calculate the precise position adjustment required by the second electric cylinder 10; based on the calculation results, an adjustment instruction is issued, and the second electric cylinder 10 fine-tunes the position of the lifting ring body 13. The closed-loop negative feedback process of visual inspection, coordinate calculation and position adjustment is repeated until all four positioning holes are coaxially arranged.

[0057] Through precise calculation and adjustment of the visual inspection device and the central control machine, high-precision coaxial arrangement of the positioning holes of the wire clamp body 8 and the lifting ring body 13 can be achieved, ensuring that the entire load-bearing cable installation system meets the expected precision requirements in terms of structure, position and force, thereby improving the operational stability and reliability of the high-speed rail contact network; the automated operation process reduces manual intervention, greatly improves installation efficiency and shortens construction time compared to traditional manual hole installation methods.

[0058] The foregoing is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A hole-matching device for a side wire clamp of a high-speed railway suspension string, comprising a base plate (1), characterized in that: A wire clamp mounting portion is provided on one side of the base plate (1), and a wire clamp body (8) clamped by an electric clamping claw (6) is driven to move by a first electric cylinder (3); A lifting ring mounting portion is provided on one side of the base plate (1) and below the wire clamp mounting portion, and a lifting ring body (13) fixed between a structural member XUA (11) and a structural member XUC (12) is driven to move by a second electric cylinder (10); The wire clamp body (8) is driven to move downward until its inner wall is in full contact with the load-bearing cable and fixes the load-bearing cable. At the same time, the eye ring body (13) is driven to move upward to perform the hole alignment operation between the eye ring body (13) and the wire clamp body (8).

2. The hole alignment device for the side wire clamp of a high-speed railway dropper string according to claim 1, characterized in that: The wire clamp mounting portion comprises a first mounting seat (2) arranged on one side of a base plate (1); a first electric cylinder (3) is arranged on one side of the first mounting seat (2); an output shaft of the first electric cylinder (3) is provided with a structural member SUB (4); and a structural member SUA (5) is provided on an outer wall of the structural member SUB (4).

3. The hole alignment device for the side wire clamp of a high-speed railway dropper string according to claim 1, characterized in that: An electric clamp (6) is provided on the outer wall of the structural member SUA (5), and clamps (7) are provided at two output ends of the electric clamp (6), and a wire clamp body (8) is clamped between the outer walls of the two clamps (7).

4. The hole alignment device for the side clamp of a high-speed railway dropper string according to claim 1, characterized in that: The lifting ring mounting portion includes a second mounting seat (9) arranged on one side of the base plate (1) and located below the wire clamp body (8); a second electric cylinder (10) is arranged on the outer wall of the second mounting seat (9); an output shaft of the second electric cylinder (10) is provided with a structural member XUA (11); a U-shaped groove (111) is provided through the top of the structural member XUA (11); and a chamfer is provided at the top edge of the U-shaped groove (111).

5. The hole alignment device for the side wire clamp of a high-speed railway dropper string according to claim 4, characterized in that: A lifting ring body (13) is provided between the tops of the U-shaped grooves (111), and the arc portion of the lifting ring body (13) is closely attached to the chamfered corner of the U-shaped grooves (111).

6. The hole alignment device for the side wire clamp of a high-speed railway dropper string according to claim 1, characterized in that: A structural member XUC (12) is provided on the outer wall of the structural member XUA (11), and cantilevers (121) are symmetrically provided on one side of the structural member XUC (12). A groove (122) is provided on one side of each of the two cantilevers (121), and a straight portion of the lifting ring body (13) is fixed to the groove (122).

7. The hole alignment device for the side wire clamp of a high-speed railway dropper string according to claim 3, characterized in that: The inner wall shape of the clamp (7) is the same as the outer contour of the wire clamp body (8).

8. The hole alignment device for the side wire clamp of a high-speed railway dropper string according to claim 1, characterized in that: A buffer groove (112) is provided on one side of the structural member XUA (11).

9. The hole alignment device for the side wire clamp of a high-speed railway dropper string according to claim 1, characterized in that: A flexible T-shaped groove is provided on one side of the structural member XUC (12) and between the two cantilevers (121).

10. A method for aligning a hole for a side wire clamp of a high-speed railway dropper string supporting cable, used for the hole aligning device of the side wire clamp of a high-speed railway dropper string supporting cable according to any one of claims 1 to 9, characterized in that: The specific steps include: Step 1: Separate the pistons of the first electric cylinder (3) and the second electric cylinder (10) before use; Step 2: Place the wire clamp body (8) on the fixture (7), and drive the electric clamp (6) to clamp the fixture (7); place the lifting ring body (13) into the U-shaped groove (111) of the structural part XUA (11) and the groove (122) of the cantilever (121) of the structural part XUC (12), and complete the fixing of the parts; Step 3: Move the whole machine to a predetermined position and place the load-bearing cable between the wire clamp body (8) and the lifting ring body (13); Step 4: The first electric cylinder (3) drives the wire clamp body (8) to press down and fix the load-bearing cable, and the second electric cylinder (10) drives the lifting ring body (13) to move up to a preset position. The visual detection device photographs the positioning hole and transmits the coordinate data to the central control machine; Step 5: The central control machine calculates the adjustment amount of the second electric cylinder (10) based on the positioning hole of the wire clamp body (8), and the second electric cylinder (10) fine-tunes the position of the ring body (13). After visual inspection, calculation, and adjustment, the closed-loop operation is performed until the four positioning holes on the wire clamp body (8) and the ring body (13) are coaxially positioned.

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