CN110470194B - Lever type contact net height guiding and pulling-out value measuring device - Google Patents
Lever type contact net height guiding and pulling-out value measuring device Download PDFInfo
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- CN110470194B CN110470194B CN201910817438.1A CN201910817438A CN110470194B CN 110470194 B CN110470194 B CN 110470194B CN 201910817438 A CN201910817438 A CN 201910817438A CN 110470194 B CN110470194 B CN 110470194B
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- 238000005096 rolling process Methods 0.000 claims abstract description 26
- 229920006351 engineering plastic Polymers 0.000 claims description 3
- 239000007779 soft material Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 14
- 238000005259 measurement Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
- G01B5/061—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness height gauges
Abstract
A lever-type overhead contact system height and pull-out value measuring device, comprising: the rolling rod (2) is arranged perpendicular to the line direction of the contact line (1); the bow-shaped frame (3) is provided with an open upper end and a closed lower end, the inner side of the open upper end is coaxially connected with the rolling rod (2), the reading ruler (31) is arranged on one side of the lower part close to the rolling rod (2), and the closed lower end is fixedly connected with the cross rod (34); the support frame (5) is positioned at the lower part of the bow-shaped frame (3), is provided with a support lug plate (51) and a mounting bottom plate (53), the support lug plate (51) is hinged with a cross rod (34), and the mounting bottom plate (53) is connected with the working vehicle (7); the height guiding pointer (4) is arranged on the outer side of the supporting frame (5), and the height guiding pointer (4) is linked with the bow-shaped frame (3); the tension spring (6) is hung at a corresponding position between the bow-shaped frame (3) and the supporting frame (5) and pulls the bow-shaped frame (3) to rotate clockwise around the cross rod (34) which is hinged and connected, and the measuring device has the characteristics of simple structure, convenience in detection and synchronous reading and adjustment.
Description
Technical Field
The invention relates to the field of railway contact net engineering, in particular to a lever type contact net height guiding and pulling-out value measuring device.
Background
In large-iron or subway rail traffic engineering, overhead contact systems are widely used for supplying power to vehicles, and during the construction of large-iron or subway tunnel overhead contact systems, the height of contact lines of the contact systems relative to ground rails and the pulling-out value of the contact lines need to be adjusted. The pull-out value is the distance between the contact line positioned at two sides of the center of the track line and positive and negative deflection of the center of the track, the shape of the positive and negative deflection of the contact line relative to the center of the track is similar to sine wave, and when the locomotive operates, the carbon brush of the pantograph contacts with the contact line and slides left and right in a certain range, so that the carbon brush of the pantograph is uniformly worn; the height of the contact line relative to the track surface is an important parameter for ensuring that the contact of the pantograph of the locomotive and the contact line is uniform in electricity taking.
The existing equipment for measuring the height guiding and pulling-out values of the overhead contact system mainly comprises an overhead contact system laser measuring instrument and a track maintenance vehicle, wherein the overhead contact system laser measuring instrument has the advantages of no contact, accurate measurement and the like, but is expensive, has high use requirements, and meanwhile, due to the fact that measurement is carried out on a track, maintenance or adjustment personnel on the operation vehicle cannot intuitively see the height guiding and pulling-out value data, and the lower measurement personnel are required to carry out adjustment through oral report, inconvenience is brought to the maintenance or adjustment personnel on the upper part, and the working efficiency is low; the maintenance of the overhead line system can be carried out while the detection is carried out on the rail maintenance vehicle, but the rail maintenance vehicle is huge in size, the rail maintenance vehicle must occupy the rail in the whole course in use, the mobility is poor, and the rail maintenance vehicle is not suitable for the adjustment of a new line overhead line system.
Chinese patent application No. 201520292620.7 discloses a contact net leads high, value detection device that pulls out, including supporting part, establish the level on supporting part and pull out value track, along pulling out value orbital motion pull out value seat, establish the perpendicular track on pulling out value seat, along perpendicular track motion and establish return spring's wire wheel part. The device is characterized in that although maintenance or adjustment personnel on the operation vehicle directly observe the pull-out value and the height guiding data of the overhead line on the operation vehicle, the maintenance or adjustment is convenient, but the pull-out value seat generates horizontal movement through the action of a plurality of horizontal and vertical guide wheels arranged in a pull-out value track, if the guide wheels are rusted, the contact line drives the additional lateral resistance of the horizontal movement of the pull-out value seat to increase, the pull-out value measurement error is easily caused for the flexible overhead line, in addition, the newly-built overhead line is larger in contact line height difference due to the primary installation, and the problem that the wire guide wheel and the contact line are separated in the use process of the device can be caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing the measuring device for the lever type overhead contact system height guiding and pulling-out value, which has a simple structure, does not have any lateral additional resistance on a contact line during measurement, does not have a groove, and can realize synchronous observation and adjustment on a common operation vehicle.
In order to solve the technical problems, the invention relates to a lever type overhead contact system height guiding and pulling-out value measuring device, which adopts the following technical scheme: comprising the following steps: the rolling rod is arranged perpendicular to the line direction of the contact line; the bow-shaped frame is provided with an open upper end and a closed lower end, the inner side of the open upper end is coaxially connected with the rolling rod, the reading ruler is arranged on one side of the lower part close to the rolling rod, and the closed lower end is fixedly connected with the cross rod; the support frame is positioned at the lower part of the bow-shaped frame and is provided with support lug plates and a mounting bottom plate, the cross bars are hinged between the support lug plates, and the mounting bottom plate is connected with the operation vehicle; the height guiding pointer is arranged on the outer side of the supporting frame and is linked with the bow-shaped frame; and the extension spring is hung between the bow-shaped frame and the support frame and pulls the bow-shaped frame to rotate clockwise around the cross rod.
Further, the rolling rod is provided with a roller and a roller shaft, the roller is in rolling contact with the contact line, and the roller shaft is fixedly connected to two sides of the opening end of the bow-shaped frame.
Further, both ends of the reading ruler are connected with both inner sides of the opening end of the bow-shaped frame and are arranged in parallel with the roller, and the lengths of the counting ruler and the roller are more than twice of the measured maximum pull-out value.
Further, the scale is provided with score lines starting from 0 in the longitudinal direction of the middle position to both sides.
Further, limiting blocks for limiting the bow-shaped frame to rotate clockwise and counterclockwise are arranged at the corresponding positions of the supporting frame.
Further, a height guiding indication scribing line is arranged at the corresponding position indicated by the height guiding pointer.
Further, the outer surface of the roller of the rolling rod is made of nonmetallic soft materials such as rubber, engineering plastic and the like.
Compared with the prior art, the measuring device for the lever type overhead contact system height guiding and pulling-out value can bring the following beneficial effects;
1. the roller is in rolling contact with the contact line, the contact line is not damaged, no additional lateral force exists between the contact line and the roller, the reading ruler is arranged on one side of the lower part of the rolling rod close to the roller and is arranged in parallel with the roller, and maintenance and adjustment personnel on the operation vehicle can intuitively observe the change of the contact point of the contact line and the roller relative to the position of the score line, so that the pull-out value A of any position can be known.
2. The height guiding pointer is arranged on the outer side of the supporting frame, the height guiding pointer is linked with the bow-shaped frame, the bow-shaped frame rotates around the cross rod under the compression of the contact line and drives the height guiding pointer to swing, so that whether the contact line is a standard height guiding value can be indirectly known by observing the swing position of the height guiding pointer relative to the height guiding indication scribing line.
3. The bow-shaped frame is contacted with the contact line in a lever-type rotation mode, so that the working state of the pantograph can be truly simulated, and the height and the pull-out value of the contact line are more visual.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic diagram of a front view structure of an embodiment of the present invention;
FIG. 2 is a left side view schematic of FIG. 1;
FIG. 3 is a schematic top view of the structure of FIG. 1;
FIG. 4 is a schematic view of the invention mounted on a work car in use;
FIG. 5 is a left side view schematic of FIG. 4;
fig. 6 is a schematic view of the contact line of fig. 4 in an operating state above the normal guide height; and
fig. 7 is a schematic view of the contact line of fig. 4 in an operating state below the normal guide height.
Detailed Description
The construction and operation of the present invention will be described in detail with reference to the accompanying drawings, in combination with the embodiments.
Referring to fig. 1 to 3, the measuring device for the guide height and the pull-out value of the lever-type contact net comprises a rolling rod 2, a bow-shaped frame 3, a reading ruler 31, a supporting frame 5, a tension spring 6, clockwise and counterclockwise limiting blocks 36 and 35 and the like.
Wherein, the rolling rod 2 is arranged perpendicular to the line direction of the contact line 1 and is in rolling contact with the contact line 1. The rolling rod 2 comprises a roller 21, a roller shaft 22 and a bearing, wherein the bearing is arranged between the roller 21 and the roller shaft 22, and the roller shaft 22 extends out of a part of two end faces of the roller 21, so that the roller shaft 22 is convenient to fixedly mount. To reduce wear of the roller 21 of the rolling rod 2 to the contact wire 1, the outer surface of the roller 21 is preferably made of a nonmetallic soft material such as rubber, engineering plastic, or the like.
The bow 3 is a U-shaped bracket with an open upper end and a closed lower end. The upper end of the opening is provided on both sides with coaxial pairs of perforations for mounting the projecting parts of the drum shaft 22, i.e. the drum shaft 22 is fastened on both sides of the open end of the bow 3. The closed lower end is fixedly connected with the cross rod 34, the cross rod 34 is a hollow tube, the inner cavity is movably matched with a hinge shaft, a brake screw can be arranged on the cross rod 34, and the cross rod 34 and the hinge shaft are fixedly connected together through the brake screw. The hinge shaft passes through the interior cavity of the cross bar 34 and extends from both ends beyond a portion of the cross bar 34 for mounting.
The reading ruler 31 is an elongated ruler, the length direction of the two sides of the middle position is respectively provided with a score line 32 starting from 0, the reading ruler 31 is arranged on one side of the lower part of the roller 21 close to the rolling rod 2, two ends of the reading ruler 31 are connected with two inner sides of the opening end of the bow 3, the length direction is arranged in parallel with the roller 21, the graduated surface of the reading ruler 31 faces upwards for facilitating observation, the plane forms an angle theta with the contact line 1, and in addition, the lengths of the reading ruler 31 and the roller 21 are more than twice of the measured maximum pull-out value in order to ensure that the pull-out value of the contact line 1 is in the length direction range of the roller 21.
The supporting frame 5 is positioned at the lower part of the bow 3 and is provided with a supporting ear plate 51 and a mounting bottom plate 53. A coaxial pair of perforations is provided between the two symmetrical support lugs 51 for mounting hinge shafts extending beyond the ends of the cross bar 34, the cross bar 34 and the two symmetrical support lugs 51 being hinged together by the hinge shafts, the support lugs 51 forming a segment of a fan-shaped plane at the lower part around the pair of perforations. The mounting base plate 53 is connected to the work vehicle 7.
The height guiding pointer 4 is arranged on the outer side of the supporting frame 5 and fixedly connected with the end part of the hinge shaft extending out of the supporting ear plate 51, and the linkage relation of the height guiding pointer 4 along with the bow-shaped frame 3 is formed due to the fact that the bow-shaped frame 3, the cross rod 34, the hinge shaft and the height guiding pointer 4 are fixedly connected with each other. On the outer plane of the supporting ear plate 51, a height guiding indication score line 52 is arranged at the corresponding position indicated by the height guiding pointer 4.
The two extension springs 6 are respectively and symmetrically hung at corresponding positions on the outer sides between the bow-shaped frame 3 and the supporting frame 5, and are used for pulling the bow-shaped frame 3 to rotate clockwise around the cross rod 34 which is hinged.
The corresponding position of the support frame 5 is provided with a limiting block 36 for limiting the rotation of the bow 3 clockwise and a limiting block 35 for anticlockwise rotation.
Principle of operation
Referring to fig. 4 and 5, when in use, the mounting base plate 53 of the measuring device for the height and pull-out value of the lever-type contact net of the invention is connected with the upper side surface of the working vehicle 7, the working vehicle is generally a working ladder vehicle which is manually pushed to move, wherein the mounting base plate 53 and the working ladder vehicle 7 are movably connected, that is, the mounting base plate 53 can move up and down and left and right in a certain range relative to the working ladder vehicle 7. In order to avoid installation errors or possible deformation effects of the work vehicle, the installation location of the device is preferably approved prior to use. The mounting base plate 53 is adjusted to move left and right relative to the working ladder car 7 so that the 0 bit line in the middle of the graduated scale 31 keeps overlapping with the center of the track 9, the vertical distance between the upper edge of the roller 21 and the plane of the track 9 is ensured to meet the standard height guide by adjusting the mounting base plate 53 to move up and down relative to the working ladder car 7, and the mounting base plate 53 and the working ladder car 7 are fixedly connected by using the fixing piece 8 after the adjustment.
When the contact line 1 is just in the standard height guiding state, the upper edge of the roller 21 is just in contact with the contact line 1, the tip of the height guiding pointer 4 is just in alignment with the height guiding indication scribing line 52, the pulling value A of any position of the contact line 1 can be known by observing the position change of the contact point of the contact line 1 and the roller 21 relative to the scribing line 32, and after the pulling value A is out of range, maintenance or adjustment personnel can adjust the pulling value of the contact net.
Referring to fig. 6, when the height of the contact wire 1 is higher than the standard height guiding value, the contact wire 1 leaves the roller 21 to generate a gap, and a maintenance or adjustment person can perform a lowering process on the contact net to keep the contact wire 1 just contacting the upper edge of the roller 21 or adjust the contact wire 1 to make the tip of the height guiding pointer 4 just aligned with the height guiding indicating scribing line 52.
Referring to fig. 7, when the contact line 1 is lower than the standard height guiding value, the contact line 1 presses the roller 21 downwards to overcome the resistance of the tension spring 6, so that the bow 3 rotates anticlockwise around the cross bar 34, the tip of the height guiding pointer 4 is biased to the right side of the height guiding indication line 52 due to the linkage relation of the height guiding pointer 4 along with the bow 3, and the difference between the actually measured height guiding and the standard height guiding can be indirectly known by observing the magnitude of the deviated distance, so that the contact line is adjusted upwards to enable the tip of the height guiding pointer 4 to be exactly aligned to the height guiding indication line 52.
As can be seen from the above description, according to the measuring device for the lever-type contact net height and the pull-out value, the roller 21 is in rolling contact with the contact line 1, the contact line 1 is not damaged, no additional lateral force exists between the contact line 1 and the roller 21, the reading ruler is arranged on one side close to the lower part of the rolling rod and is arranged in parallel with the rolling rod, and a maintenance and adjustment person on the working vehicle can intuitively observe the position change of the contact point of the contact line 1 and the roller 21 relative to the score line 32, namely the pull-out value A at any position can be known, and further the contact net is adjusted.
The height guiding pointer 4 is arranged on the outer side of the supporting frame 5, the height guiding pointer 4 is linked with the bow-shaped frame 3, the bow-shaped frame 3 rotates around the cross rod 34 under the compression of the contact line 1 and drives the height guiding pointer to swing, so that whether the contact line 1 is a standard height guiding value can be indirectly known by observing the swing position of the height guiding pointer relative to the height guiding indication score line.
In addition, the bow-shaped frame is contacted with the contact line in a lever-type rotation mode, so that the working state of the pantograph can be truly simulated, and the height and the pull-out value of the contact line are more visual.
The invention is especially suitable for the use occasions with large guide height and pull-out value adjustment range of newly built contact networks, and has the characteristics of simple structure, convenient detection and synchronous reading and adjustment.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a lever contact net leads high and measuring device of pull-out value which characterized in that: comprising the following steps:
the rolling rod (2) is arranged perpendicular to the line direction of the contact line (1);
the bow-shaped frame (3) is provided with an open upper end and a closed lower end, the inner side of the open upper end is coaxially connected with the rolling rod (2), the reading ruler (31) is arranged on one side close to the lower part of the rolling rod (2), and the closed lower end is fixedly connected with the cross rod (34);
the support frame (5) is positioned at the lower part of the bow-shaped frame (3) and is provided with a support lug plate (51) and a mounting bottom plate (53), the cross rod (34) is hinged between the support lug plates (51), and the mounting bottom plate (53) is connected with the working vehicle (7);
the height guiding pointer (4) is arranged at the outer side of the supporting frame (5), and the height guiding pointer (4) is linked with the bow-shaped frame (3);
and the extension spring (6) is hung between the bow-shaped frame (3) and the supporting frame (5) and pulls the bow-shaped frame (3) to rotate clockwise around the cross rod (34).
2. The lever-type overhead contact system height and pull-out value measuring device according to claim 1, wherein: the rolling rod (2) is provided with a roller (21) and a roller shaft (22), the roller (21) is in rolling contact with the contact line (1), and the roller shaft (22) is fixedly connected to two sides of the opening end of the bow-shaped frame (3).
3. The measuring device for lever-type overhead contact system height and pull-out value according to claim 2, wherein: the two ends of the reading ruler (31) are connected with the two inner sides of the opening end of the bow-shaped frame (3) and are arranged in parallel with the roller (21), and the lengths of the reading ruler (31) and the roller (21) are more than twice of the measured maximum pull-out value.
4. A lever-type overhead contact system height and pull-out value measuring device according to claim 3, characterized in that: the reading ruler (31) is provided with a scribing line (32) starting from 0 at the middle position along the length direction of the two sides.
5. The lever-type overhead contact system height and pull-out value measuring device according to claim 1, wherein: limiting blocks (36, 35) for limiting clockwise and counterclockwise rotation of the bow-shaped frame (3) are arranged at corresponding positions of the supporting frame (5).
6. The lever-type overhead contact system height and pull-out value measuring device according to claim 1, wherein: and a height guiding indication scribing line (52) is arranged at the corresponding position indicated by the height guiding pointer (4).
7. A lever-type overhead contact system height and pull-out value measuring apparatus according to any one of claims 1 to 6, characterized in that: the outer surface of the roller (21) of the rolling rod (2) is made of nonmetallic soft materials such as rubber, engineering plastic and the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910817438.1A CN110470194B (en) | 2019-08-30 | 2019-08-30 | Lever type contact net height guiding and pulling-out value measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910817438.1A CN110470194B (en) | 2019-08-30 | 2019-08-30 | Lever type contact net height guiding and pulling-out value measuring device |
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| Publication Number | Publication Date |
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| CN110470194A CN110470194A (en) | 2019-11-19 |
| CN110470194B true CN110470194B (en) | 2024-02-13 |
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| CN201910817438.1A Active CN110470194B (en) | 2019-08-30 | 2019-08-30 | Lever type contact net height guiding and pulling-out value measuring device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112146605B (en) * | 2020-09-21 | 2021-05-25 | 北京运达华开科技有限公司 | Method and system for measuring pull-out value of contact network |
| CN113446916B (en) * | 2021-06-04 | 2023-02-28 | 中铁十一局集团电务工程有限公司 | Manual measurement method for parameters of high-speed magnetic suspension power rail |
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