Rapid positioning and centering device for elastic sling of overhead line system

Abstract

The utility model discloses a contact network elastic sling quick positioning and centering device, which comprises a cantilever pipe quick clamp, an elastic sling midpoint clamp and a connecting rod thereof, the cantilever pipe quick clamp comprises two semicircular pipe clamps, the closed ends of the two semicircular pipe clamps are hinged, and the other ends of the closed ends are connected with each other through a latch type quick clamping and locking mechanism; the elastic sling midpoint clamp comprises a groove-shaped seat, a wire groove is formed in the side, facing an elastic sling, of the groove-shaped seat, a clamping plate is movably arranged at the lower end in the wire groove, the lower portion of the groove-shaped seat is in threaded connection with a jacking screw to abut against the lower end of the clamping plate, and the lower end of the jacking screw is located on the outer side of the groove-shaped seat and provided with a hand screwing handle. And the cantilever pipe quick clamp and the elastic sling midpoint clamp are connected with each other through a connecting rod. According to the utility model, the cantilever pipe of the overhead line system is taken as a positioning starting point, the device is quickly mounted on the cantilever pipe by adopting the cantilever pipe quick clamp, and the midpoint of the elastic sling is clamped and fixed through the elastic sling midpoint clamp connected with the connecting rod, so that the elastic sling can be quickly positioned and centered.

Description

Technical Field

[0001] The utility model relates to the technical field of construction and installation of elastic suspension cables for high-speed railways, and particularly relates to a quick positioning and centering device for catenary elastic suspension cables. Background Technique

[0002] At present, the method of using a manual pull tape measure for high-altitude measurement in the installation of catenary elastic suspension cables is adopted. Through the cooperation of the upper operators to stretch the steel tape measure for digital comparison, the installation position of the elastic suspension cable clamp is determined, so as to judge whether the installation position of the elastic suspension cable is centered. This method has low measurement accuracy, large errors and low efficiency. At the same time, two people are required to cooperate to complete the upper measurement process, which also greatly increases the safety risk during the measurement process.

[0003] In the general environment of intelligent construction of high-speed railways, simply using the method of operators using a steel tape measure for comparison and measurement is becoming increasingly disadvantageous for construction enterprises in the market competition. Therefore, it is urgent to develop a new type of quick positioning and centering device for catenary elastic suspension cables to meet the quick centering and positioning during the construction process of catenary elastic suspension cables, which will effectively improve the overall construction efficiency, improve the construction quality, eliminate safety risks, and reduce the rework volume caused by unqualified installation of elastic suspension cables. Content of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a quick positioning and centering device for catenary elastic suspension cables.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a quick positioning and centering device for catenary elastic suspension cables, which includes a quick clamp for a wrist arm tube, a midpoint clamp for an elastic suspension cable and its connecting rod. The quick clamp for the wrist arm tube includes two semi-circular pipe clamps, one end of their openings is hinged, and the other end of the openings is connected to each other through a latch-type quick clamping mechanism. The midpoint clamp for the elastic suspension cable includes a trough-shaped seat. A wire groove is opened on one side of the trough-shaped seat facing the elastic suspension cable. A clamping plate is movably arranged at the lower end inside the wire groove. The lower part of the trough-shaped seat is screwed with a jacking screw against the lower end of the clamping plate. The lower end of the jacking screw is located outside the trough-shaped seat and is provided with a hand-tightening handle. The quick clamp for the wrist arm tube and the midpoint clamp for the elastic suspension cable are connected to each other through a connecting rod.

[0006] Further, liners are arranged on the inner walls of the two semi-circular pipe clamps.

[0007] Further, the thickness of the liner is 1 mm.

[0008] Further, the hand-tightening handle is a cross bar, and the midpoint position of the cross bar is vertically welded and fixed to the jacking screw.

[0009] The quick positioning and centering device of the utility model takes the catenary boom tube as the positioning starting point, and uses a quick clamp for the boom tube to quickly install the device on the boom tube, while meeting the need for quick disassembly. The midpoint clamp of the elastic sling connected by the connecting rod clamps and fixes the midpoint of the elastic sling line to achieve the quick positioning and centering of the elastic sling.

[0010] Using this device can effectively solve the problems of slow centering positioning speed and high labor consumption in the construction of catenary elastic slings at the present stage, improve the construction efficiency and the accuracy of subsequent construction, thus reducing the phenomenon of rework, providing convenience for the high-quality operation of the catenary in the later stage, and at the same time facilitating the replacement of the existing elastic slings on high-speed railways. Brief Description of the Drawings

[0011] Figure 1 is a schematic structural diagram of the utility model.

[0012] Figure 2 is a schematic use diagram of the utility model.

[0013] In the figure: 1. Quick clamp for boom tube; 11. Semi-circular tube clamp; 12. Bolt-type quick clamping lock mechanism; 2. Midpoint clamp of elastic sling; 21. Groove-shaped seat; 22. Splint; 23. Tightening screw; 24. Hand-twisting handle; 3. Connecting rod; 4. Boom tube; 5. Elastic sling line. Detailed Description of the Preferred Embodiment

[0014] In order to better understand the purpose, structure and function of the utility model, the following further describes in detail a quick positioning and centering device for catenary elastic slings of the utility model with reference to the drawings.

[0015] As Figure 1 shown, a quick positioning and centering device for catenary elastic slings includes a quick clamp 1 for the boom tube, a midpoint clamp 2 for the elastic sling and its connecting rod 3. The quick clamp 1 for the boom tube includes two semi-circular tube clamps 11, the hinged ends of their openings can be opened and closed by 180°, and the other ends of the openings are connected to each other through a bolt-type quick clamping lock mechanism 12, making the connection of the two semi-circular tube clamps 11 more flexible. The opening is quickly fastened through the bolt-type quick clamping lock mechanism 12, and then the boom tube 4 is clamped to ensure that it does not rotate under the action of external forces. In addition, a 1-mm-thick gasket is installed on the inner walls of the two semi-circular tube clamps 11 to protect the boom tube 4, avoid damage to the galvanized layer of the boom tube 4 caused by direct rigid contact between the semi-circular tube clamps 11 and the boom tube 4, and at the same time increase the friction between the two semi-circular tube clamps 11 and the boom tube 4.

[0016] The midpoint fixture 2 of the elastic sling adopts a trough-shaped structure, including a trough-shaped seat 21. A wire groove is provided on one side of the trough-shaped seat 21 facing the elastic sling wire 5. A clamping plate 22 is movably arranged at the lower end inside the wire groove. The lower part of the trough-shaped seat 21 is screwed with a tightening screw 23 which abuts against the lower end of the clamping plate 22. The lower end of the tightening screw 23 is located outside the trough-shaped seat 21 and is provided with a hand-twisting handle 24. The hand-twisting handle 24 is a cross bar, and the midpoint position of the cross bar is perpendicularly welded and fixed to the tightening screw 23. Inside the wire groove, the clamping plate 22 is lifted by the threaded rotation of the tightening screw 23 to fix the midpoint position of the elastic sling wire 5, thereby realizing the relative stability of the midpoint position of the wire.

[0017] The quick fixture 1 of the boom tube is connected to the midpoint fixture 2 of the elastic sling through a connecting rod 3. At the same time, the connecting rod 3 has the function of being manually held by the whole device, thereby realizing the quick positioning and centering of the elastic sling.

[0018] As Figure 2 shown, when in use, first confirm that the components of the quick positioning and centering device are in good working condition. Then open the two semi-circular pipe clamps 11 of the quick fixture 1 of the upper boom tube of the device, adjust so that the connecting rod 3 is perpendicular to the boom tube 4, close the two semi-circular pipe clamps 11 on the boom tube 4, and lock them with the latch-type quick clamping mechanism 12. Check the perpendicularity of the connecting rod 3 again and make appropriate adjustments. Loosen the tightening screw 23 of the midpoint fixture 2 of the elastic sling, ensure that the gap between the clamping plate 22 and the upper end of the wire groove can accommodate the wire groove according to the wire diameter of the wire, and rotate the tightening screw 23 to make the clamping plate 22 clamp the midpoint position of the elastic sling wire 5, thereby achieving the purpose of quick positioning.

[0019] The quick positioning and centering device for the catenary elastic sling of the present utility model determines the position of the elastic sling wire 5 by systematically analyzing the whole process of the installation of the elastic sling and locking the center point of the elastic sling at the midline position of the boom tube 4. It can effectively solve many problems in the current construction, such as inaccurate positioning and low efficiency of the elastic sling, slow installation speed, high safety risk, and large investment in human resources. It can further improve the construction efficiency and installation speed, eliminate safety risks, and reduce the rework amount caused by inaccurate positioning.

[0020] It can be understood that the present utility model is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. A device for quickly positioning and centering an elastic sling of a contact network, characterized in that: The invention comprises a wrist-arm tube quick clamp (1), an elastic sling midpoint clamp (2) and a connecting rod (3). The wrist-arm tube quick clamp (1) comprises two semicircular tube clamps (11), one end of which is hingedly connected, and the other end of which is connected to each other via a latch-type quick clamping lock mechanism (12). The elastic sling midpoint clamp (2) comprises a groove seat (21). The groove seat (21) is provided with a wire groove on the side facing the elastic sling line (5). A clamp plate (22) is movably arranged at the lower end of the wire groove. A tightening screw (23) is screwed to the lower part of the groove seat (21) and abuts against the lower end of the clamp plate (22). The lower end of the tightening screw (23) is located outside the groove seat (21) and is provided with a hand-tightening handle (24). The wrist-arm tube quick clamp (1) and the elastic sling midpoint clamp (2) are connected to each other via a connecting rod (3).

2. The contact network elastic sling rapid positioning and centering device according to claim 1 is characterized in that: The inner walls of the two semicircular pipe clamps (11) are provided with gaskets.

3. The contact network elastic sling rapid positioning and centering device according to claim 2 is characterized in that: The thickness of the pad is 1 mm thick.

4. The contact network elastic sling rapid positioning and centering device according to claim 1 is characterized in that: The hand-tightening handle (24) is a crossbar, and a tightening screw (23) is vertically welded and fixed at the midpoint of the crossbar.

Images