WO2011006431A1

WO2011006431A1 - Digital display mounting apparatus for elastic stitch wire of electrified catenary

Info

Publication number: WO2011006431A1
Application number: PCT/CN2010/075120
Authority: WO
Inventors: 徐英强; 闰玉池; 李爱敏; 王宁; 翟福杰; 郑雪虎
Original assignee: 中铁电气化局集团有限公司
Priority date: 2009-07-16
Filing date: 2010-07-13
Publication date: 2011-01-20
Also published as: DE112010002937T5; CN201457123U

Abstract

A digital display mounting apparatus for an elastic stitch wire of an electrified catenary is provided. The apparatus includes an elastic stitch wire clamp (1), a dynamometer device, a tension adjusting mechanism and a messenger wire clamp (7). The dynamometer device includes a digital display located on the surface of its housing, a push-pull force sensor and a power source which are arranged in the housing. One end of the push-pull force sensor is connected with the elastic stitch wire clamp (1) and the other end is connected with the tension adjusting mechanism by connectors (3). The tension adjusting mechanism, which is connected with the messenger wire clamp (7), consists of a ratchet tightener (5) and fine adjustment bolts (6) which are in chain connection with the ratchet tightener. The ratchet tightener (5) has a positioning ratchet set on a spool, and a wire tightening handle (52) is provided on the positioning ratchet. A wire (51) wound around the spool is connected with the connector. A connection hook (53) is arranged on the housing of the ratchet tightener (5), which is connected with the fine adjustment bolts (6). The fine adjustment bolts (6) are two threaded rods passing through and engaging with two threaded holes at both ends of a housing (62), and outer ends of the two threaded rods are connected with the ratchet tightener (5) and the tightener (7) of the messenger wire, respectively. The apparatus can control accurately the mounting tension of the elastic stitch wire. The apparatus has a small volume and light weight, thus it is convenient to be used in the elevated work.

Description

Digital display electrification contact net elastic sling installation instrument

Technical field

The utility model relates to the field of electrification contact net installation, in particular to a digital display electrification contact net elastic sling installation instrument.

Background technique

As the electrified railway enters the "high-speed" era, the trains run at a higher speed, and the requirements for the technical standards for the construction of the catenary are getting higher and higher. In the design of the catenary, the use of elastic slings is highly regarded by the passenger line, but the installation of the elastic slings is very demanding for the technicians. As the tension accuracy requirements of the elastic slings become higher and higher, how to monitor the elastic sling tension values in real time during the installation process becomes a technical problem. So far, the more advanced elastic sling installation method is to use the relatively bulky elastic suspension installation device, which is fixed by fixing the elastic slinger, the force measuring device, the tension adjusting screw and the load cable clamp. On the plate, the tension is adjusted by adjusting the handle on the screw. This method has the following drawbacks: (1) This device is relatively cumbersome and is very inconvenient to use in aerial work. The fixing of the device requires several labors to complete. (2) When the handle of the rotating device is used for tension adjustment, the operation is laborious, the rotation speed is slow, and the work efficiency is low. (3) In the tension adjustment process, due to the low precision of the force measuring device, it is difficult to ensure the accuracy requirements of the high-speed railway contact net construction, which can not meet the requirements of the high-speed electrified railway for the contact network.

Utility model content

The purpose of the utility model is to provide a digital display electric contact net elastic sling installation instrument, which can not only accurately control the installation tension of the elastic sling, but also has a reasonable structure, small volume and light weight, and is convenient for working at high altitude.

The utility model is realized as follows: the digital display electret contact net elastic sling installation instrument comprises an elastic sling cable clamp, a force measuring device, a tension adjusting mechanism and a load-bearing cable card, and the characteristic is that the measuring The force device is mounted with a digital display on the surface of the casing, and a push-pull force sensor and a power supply source electrically connected to the digital display are disposed in the casing; the force-receiving end of the push-pull force sensor passes through the connecting member and the elastic slinger The other force receiving end is connected with the tension adjusting mechanism through the connecting member; the tension adjusting mechanism is connected with the load-carrying cable holder; the tension adjusting mechanism is composed of a ratchet type tightener and a fine-tuning bolt chain connection; The ratchet type wire tightener is provided with a tight line handle on the positioning ratchet disposed on the bobbin, and a clue wound on the bobbin is connected with the connecting member, and the ratchet type tightener housing is provided with a connecting hook and a fine adjustment bolt. The fine adjustment bolts are respectively provided with threaded holes at both ends of the casing, and the threaded rods are respectively inserted into the holes, and the outer ends of the two threaded rods are respectively connected with the ratchet type wire tightener and the load cable clamper. .

The force measuring device of the utility model is provided with a digital display mounted on the surface of the casing, and a push-pull force sensor and a power supply source electrically connected with the digital display are arranged in the casing. The connecting member connects the tension measuring device and the tension adjusting mechanism to realize the collection of the pulling force signal by the push-pull force sensor. This integrated tension measuring device not only has high measurement accuracy, but also can visually and conveniently view real-time data during tension adjustment during elastic sling installation to meet the design requirements for tension control during elastic sling installation. . The tension adjusting mechanism of the utility model is composed of a ratchet type tightener and a fine-tuning bolt chain connection; the ratchet type tightening device makes the adjustment process convenient and fast, and the fine adjustment bolt makes the adjustment precision easier to control. Moreover, the chain connection scheme breaks the limitation of the prior art that the tension adjusting component can only be fixed together on the plate, so that the instrument has the advantages of simple structure, convenient installation, and can obviously reduce the weight and is more suitable. Used in aerial work.

The utility model has the advantages of high tension adjustment, accurate tension data collection, high display precision, small volume, light weight, easy installation and simple operation, and is suitable for use in aerial work.

DRAWINGS

Figure 1 is a schematic view of the structure of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in FIG. 1 , the digital display electrified contact net elastic sling installation instrument comprises an elastic sling cable clamp 1 , a force measuring device 5 , a tension adjusting mechanism and a load-bearing cable aligner 7 .

The force measuring device is provided with a digital display mounted on the surface of the casing, and a push-pull force sensor and a power supply (not shown) electrically connected to the digital display are disposed in the casing. A button area can be set on the surface of the housing of the force measuring device, and the buttons such as opening and closing can be set, and various setting operations can be performed by pressing the button of the area during use. The measuring device is provided with a power charging jack, and the periodic power supply can ensure the uninterrupted power of the device.

The force receiving end of the push-pull force sensor is connected to the elastic slinger 1 through the connecting member 3, and the connecting member 3 is provided with a horizontal threaded hole at one end, and the through hole is connected to the force receiving end of the push-pull force sensor. The connecting screw 32 is provided with a longitudinal insertion pin 31 at the other side end, and the elastic slinger 1 is provided with a straight handle 11 having a through hole for the connecting pin 31 of the connecting member 3 . The straight handle design reduces the overall size and weight of the mounter, horizontally stretches, and is easy to operate.

The other force receiving end of the push-pull force sensor is connected to the tension adjusting mechanism via the connecting member 3. The tension adjusting mechanism is in contact with the load-carrying cable gripper 11.

The tension adjusting mechanism is composed of a ratchet type wire tightener 5 and a fine adjustment bolt 6 chain connection. The ratchet type wire tightener is provided with a tightening handle 52 on the positioning ratchet disposed on the bobbin, and the clue 51 wound around the bobbin is connected with the connecting pin 31 on the connecting member 3, and the ratchet type tightener housing is provided with a connecting hook 53. The fine adjustment screw 6 has a threaded hole at each end of the housing 62, and the threaded rod is respectively inserted into the hole. The outer end of the left threaded rod 61 is provided with a connection for the connection hook 53 of the ratchet type wire tightener 5. The hole, the outer end of the right threaded rod 63 is provided with a hook that is connected to the load-carrying cable gripper 7.

In a preferred embodiment, an elongated hand lever (not shown) is attached to the tightening handle 52 of the ratchet type tensioner. The design of the extension rod reduces the manpower of pulling the tensioner and ensures the ease of use and storage of the installation instrument.

The utility model can also fix the binaural sling 2 by a fastening nut on the screw 31 connected to the two force receiving ends of the push-pull force sensor, the binaural sling 2 has a unidirectional openable hook to measure the tension The device is hung horizontally on the contact net bearing cable for easy viewing of the tension value on the digital display.

When in use, the components are sequentially connected in the order of Figure 1, the elastic slinger 1 is snapped onto the elastic sling, and the load-carrying cable 7 is snapped onto the load-bearing cable to pull the ratchet The tightener handle 52 performs a coarse adjustment of the tension. In the case that the elastic sling tension design value is large, the tightener and the long hand lever can be set on the handle to save labor. When the tension is coarsely adjusted to near the design value, gently turn the screw of the fine adjustment bolt to achieve fine adjustment of the tension. When the tension value indicates that the design requirements are met, the elastic sling clips are fastened according to the design requirements, and the installation process of the elastic slings is completed. Then reverse the ratchet tightener, loosen the elastic sling mounter, and remove the instrument. During the use, the fine adjustment bolts can also be changed according to the actual situation of the construction site.

The utility model has the advantages of high measuring precision, digital display window and sensor integration, digital display mode being intuitive and precise, and the utility model can also set the functions of pulling pressure over-range alarm, rainproof, etc., and is suitable for various technical levels. The use of construction personnel overcomes the insufficiency of traditional construction methods that cannot guarantee the design accuracy of elastic sling tension. The utility model has the chain connection between the various components of the whole device, and does not need to fix the plate material, thereby greatly reducing the volume and weight of the whole device, making it more suitable for use in high-altitude operations, with high precision, reduced labor intensity and improved production efficiency. Effect.

Claims

A digital display electret contact elastic sling installation instrument, comprising an elastic sling cable clamp (1), a force measuring device (5), a tension adjusting mechanism and a load cable locator (7), characterized in that The force measuring device is mounted with a digital display on the surface of the casing, and a push-pull force sensor and a power supply source electrically connected to the digital display are arranged in the casing; the force-receiving end of the push-pull force sensor passes through the connecting member (3) The elastic sling cable splicer (1) is connected, and the other force receiving end is connected to the tension adjusting mechanism through the connecting member (3); the tension adjusting mechanism is connected with the load cable ties (11); The tension adjusting mechanism is composed of a ratchet type wire tightener (5) and a fine adjustment bolt (6) chain connection; the ratchet type wire tightener is provided with a tight wire handle on the positioning ratchet disposed on the bobbin (52) a clue (51) wound around the bobbin is coupled to the connecting member (3), and the ratchet tightener housing is provided with a connecting hook (53) that is in contact with the fine adjustment bolt (6); the fine adjustment bolt is Threaded holes are formed at both ends of the housing (62), and the holes are respectively worn in the holes A threaded rod, the outer end of the threaded rod respectively, and two ratchet tightener (5) and Soka-bearing thread (7) in contact.
The digital display electret contact elastic sling installation device according to claim 1, wherein said connecting member (3) is provided with a horizontal threaded hole at one end, and the through hole and the push-pull force sensor are received by the hole. The force-contacting screw (32) is provided at the other side with a longitudinal threading pin (31) for connection with a clasp of a ratcheting tensioner or an elastic slinger.
The digital display electric contact net elastic sling installation instrument according to claim 1 or 2, characterized in that the elastic sling cable holder (1) is provided with a straight handle (11), and the handle is opened The perforations of the connecting pins (31) of the connecting piece 3 are threaded.
The digital display electret contact elastic sling installation device according to claim 3, wherein the tightening handle (52) of the ratchet type tensioner is connected with an elongated hand lever.
The digital display electret contact elastic sling installation device according to claim 4, wherein the screw (31) connected to the two force receiving ends of the push-pull force sensor fixes the double-ear sling (2) by a fastening nut, The binaural ring (2) has a one-way openable hook for attaching the tension measuring device to the catenary bearing cable.