Assistant measuring device for height difference adjustment of overhead line system wire

Abstract

The utility model belongs to the technical field of rail transit overhead line system auxiliary equipment, and discloses an overhead line system wire height difference adjustment auxiliary measuring device which comprises a center dividing ruler, the center dividing ruler is connected with a guide rail, the guide rail extends in the length direction of the center dividing ruler, a sliding block capable of sliding along the guide rail is clamped in the guide rail, and the sliding block is connected with a telescopic ruler capable of being perpendicular to the guide rail. The extension end of the extension scale is hinged with a pulley, the axis direction of the pulley is perpendicular to the extension direction of the extension scale, a spring is arranged in the extension scale, the spring extends to extend the extension scale when the stress of the pulley is reduced, and the spring is compressed to shorten the extension scale when the stress of the pulley is increased. According to the utility model, accurate measurement and auxiliary adjustment of the contact network height guide are realized, high-altitude adjustment and verification are integrally completed, repeated cooperation of a vehicle ladder group and a measurement group is not needed, and the defect processing efficiency is greatly improved. Meanwhile, the structure is simple, installation is easy, and good adaptability and flexibility are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of rail transit catenary auxiliary equipment, especially relates to a catenary wire height difference adjustment auxiliary measuring device. BACKGROUND

[0002] With the continuous improvement of the speed of electrified railway, the requirement for the smoothness of the contact wire is also higher and higher. The smoothness of the contact wire mainly depends on the catenary wire height difference (referred to as wire height) parameter. Therefore, it is crucial to ensure that the catenary wire height reaches the standard parameter in the operation and maintenance of the catenary. The catenary wire height parameter defects caused by the 6C system detection every year and the tamping of the track maintenance machine highlight the need to arrange personnel to measure the wire height of several spans before and after the defect position at the window point, find the defect position and timely process it.

[0003] Currently, the catenary wire height parameter defect review adopts the mode of "manual laser measuring instrument ground measurement + vehicle ladder aerial treatment". First, the manual ground measurement group uses the laser measuring instrument to measure the dropper and the positioning point one by one, finds out the fault point, and then the aerial maintenance group processes the defect. The defect processing speed varies from person to person. Most of the aerial work groups use "human eye estimation adjustment amount" to adjust the wire height, which is difficult to adjust to the target value at one time. After the aerial personnel process, the ground needs to use the laser measuring instrument to verify the accuracy, which often needs to repeat the adjustment and verification steps several times, consuming a lot of time. Especially in rainy weather, the laser measuring instrument cannot be used, which further affects the maintenance efficiency. The aerial work personnel on the vehicle ladder measure the wire height and the pull-out value by combining the tape measure, level and other tools, which is affected by factors such as the stability of the handheld measuring tool and the reading estimation, and the measurement data accuracy is poor.

[0004] Currently, the catenary wire height parameter defect processing has the following problems: low measurement efficiency: manual handheld laser measuring instrument point-by-point measurement in multiple span conditions consumes a lot of time, and occupies too much window time. Low adjustment efficiency: the aerial personnel adjust the wire height by using "human eye estimation adjustment amount", which needs the ground measurement group to retest and verify, often repeating the adjustment and verification steps several times, consuming a lot of time. Weather influence: bad weather (such as rainy weather) limits the use of the laser measuring instrument, affecting the continuity and accuracy of defect processing.

[0005] Therefore, there is an urgent need for an auxiliary measuring tool that can simultaneously verify the accuracy of the aerial defect processing, which can meet the defect finding, processing and verification process without repeated cooperation of the vehicle ladder group and the measurement group, improve the efficiency of the catenary wire height parameter defect processing, and ensure the stability and safety of the railway power supply system. UTILITY MODEL CONTENTS

[0006] The utility model provides a catenary wire height difference adjustment auxiliary measuring device to solve the prior art problems.

[0007] To solve the above technical problems, the utility model provides a technical scheme:

[0008] A contact network wire height difference adjustment auxiliary measuring device, including the middle scale, the middle scale is connected with the guide rail, the guide rail extends along the length direction of the middle scale, the guide rail is equipped with the sliding block that can slide along the guide rail, the sliding block is connected with the telescopic ruler that can be perpendicular to the guide rail, the telescopic ruler's protruding end is hinged with the pulley, the axis direction of the pulley is perpendicular to the extension direction of the telescopic ruler, the telescopic ruler is equipped with the spring, the spring expands to make the telescopic ruler lengthen when the force of the pulley reduces, and the spring compresses to make the telescopic ruler shorten when the force of the pulley increases.

[0009] As a further improvement of the above technical solution:

[0010] The telescopic ruler includes the outer ruler, the middle ruler and the inner ruler, the outer ruler is sleeved with the middle ruler, the middle ruler is sleeved with the inner ruler, one end of the spring is connected with the middle ruler, and the other end of the spring is connected with one end of the inner ruler in the middle ruler.

[0011] One side of the outer ruler is provided with a plurality of clamping holes, and the plurality of clamping holes are arranged along the length direction of the outer ruler, one end of the middle ruler in the outer ruler is provided with a V-shaped spring piece, the V-shaped spring piece is provided with a marble, and the marble is clamped with each clamping hole.

[0012] One end of the middle ruler in the outer ruler is in interference fit with the sleeving opening of the outer ruler, and one end of the inner ruler in the middle ruler is in interference fit with the sleeving opening of the middle ruler.

[0013] The guide rail is provided with a hook.

[0014] The sliding block is connected with a clamping block, one side of the telescopic ruler is provided with a clamping groove, and the clamping block is clamped in the clamping groove.

[0015] The clamping groove is provided with a through hole penetrating through the telescopic ruler, the axis direction of the through hole is perpendicular to the extension direction of the guide rail and the telescopic ruler at the same time, the clamping block is connected with a screw rod, and one end of the screw rod penetrating through the through hole is threadedly connected with a nut.

[0016] The nut is a sheep horn nut.

[0017] The end of the screw rod is provided with an anti-dropping piece, and the diameter of the anti-dropping piece is greater than the inner diameter of the nut.

[0018] Compared with the prior art, the utility model has the beneficial effects that:

[0019] 1. Improve the parameter measurement efficiency. By clamping the sliding block on the guide rail and hinging the pulley on the telescopic ruler, the telescopic ruler can slide along the guide rail along the contact line, and the high-altitude personnel can read the data intuitively on the ladder, which is more efficient than manual handheld laser measuring instrument measurement.

[0020] 2. Wide range of adaptation, good flexibility. By setting the spring in the telescopic ruler, the contact net guide height parameter can be self-adapted to a certain range of fluctuations, V-shaped spring sheets are set in the middle ruler, and holes are set in the outer ruler, which can adapt to different guide height parameter requirements of high-speed rail, general rail and the like, maintain the flexibility and adaptability of measurement, and ensure that accurate measurement can be provided during the adjustment of the contact net guide height;

[0021] 3. High-altitude adjustment and verification are completed integrally, and the efficiency is improved. Compared with the current guide height defect processing method, the high-altitude personnel guide height parameter can be adjusted to the target value at one time through the vertical measurement device on the top surface of the ladder, and the high-altitude personnel directly observes the telescopic ruler reading after adjustment, without the need for repeated cooperation of the ladder group and the measurement group, thereby greatly improving the defect processing efficiency;

[0022] 4. Simple structure, easy to install and operate. The device is reasonably matched through the guide rail, sliding block, telescopic ruler and pulley, and the high-altitude worker can quickly and intuitively complete the measurement of the contact net guide height without complex operation. The device is installed once, does not need to be disassembled, can be stored and unfolded in cooperation with the hook, and does not occupy too much space and affect the normal work of the high-altitude worker. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0024] Fig. 1 is a structural schematic view of the contact net wire height difference adjustment auxiliary measurement device.

[0025] Fig. 2 is a partial assembly structure schematic view of the contact net wire height difference adjustment auxiliary measurement device in the unfolded use state.

[0026] Fig. 3 is a partial assembly structure schematic view of the contact net wire height difference adjustment auxiliary measurement device in the storage and folding state.

[0027] LEGEND:

[0028] 1, middle ruler; 2, guide rail; 3, sliding block; 31, clamping block; 32, screw; 33, nut; 34, anti-dropping piece; 4, telescopic ruler; 41, outer ruler; 411, clamping hole; 42, middle ruler; 43, inner ruler; 44, V-shaped spring sheet; 441, spring ball; 45, clamping groove; 46, through hole; 5, pulley; 6, spring; 7, hook. DETAILED DESCRIPTION

[0029] To facilitate understanding of this utility model, the following description will be more comprehensive and detailed in conjunction with the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0030] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention.

[0031] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0032] Example: Figs. 1-3 As shown, the auxiliary measuring device for adjusting the height difference of the contact wire in this embodiment includes a center measuring ruler 1, a guide rail 2 connected to the center measuring ruler 1, the guide rail 2 extending along the length direction of the center measuring ruler 1, a slider 3 that can slide along the guide rail 2 being fitted in the guide rail 2, a telescopic ruler 4 that can be perpendicular to the guide rail 2 being connected to the slider 3, a pulley 5 hinged to the extended end of the telescopic ruler 4, the axis of the pulley 5 being perpendicular to the extension direction of the telescopic ruler 4, and a spring 6 provided inside the telescopic ruler 4, the spring 6 extending when the force on the pulley 5 decreases to lengthen the telescopic ruler 4, and compressing when the force on the pulley 5 increases to shorten the telescopic ruler 4. Through the reasonable design of the center measuring ruler 1, the guide rail 2, the slider 3, the telescopic ruler 4 and the pulley 5, several problems existing in the background art are effectively solved. First, the telescopic ruler 4 contains a spring 6, and its extended end is hinged to a pulley 5. This allows the ruler to extend or compress according to changes in the force applied to the pulley 5. This design enables the measuring device to adapt to fluctuations in the contact wire height parameters within a certain range. Personnel at height can read the measurements directly as the measuring device moves along the contact wire, solving the problems of low efficiency with current handheld laser measuring instruments and the accuracy issues caused by using measuring tapes and levels. The spring 6 ensures a stable measuring state throughout the measurement process, improving accuracy and consistency. Second, the device's structure eliminates the need for repeated adjustments and parameter verification between the ladder assembly and the current method of handling contact wire height defects. The target value can be adjusted in one step, significantly improving work efficiency. Furthermore, compared to traditional measuring tools (such as laser measuring instruments, measuring tapes, and levels), this device ensures measurement accuracy while also operating stably in adverse weather conditions (such as rain), avoiding the problems of traditional measuring tools being unusable or having low accuracy in bad weather. The overall design is simple and easy to install, and it does not affect the working space of workers at height. It can be stored and unfolded within the frame of the vehicle ladder, which improves work efficiency and does not affect the work of workers at height.

[0033] In this embodiment, the telescopic ruler 4 comprises an outer ruler 41, a middle ruler 42 and an inner ruler 43, the outer ruler 41 is sleeved with the middle ruler 42, the middle ruler 42 is sleeved with the inner ruler 43, one end of the spring 6 is connected with the middle ruler 42, and the other end of the spring is connected with one end of the inner ruler 43 located in the middle ruler 42. The application range and operation convenience of the device are improved, the telescopic ruler 4 can be flexibly telescoped when the force changes, the measuring device can be self-adaptive to the fluctuation of the overhead line parameter, the high-altitude personnel can intuitively read the data when the measuring device moves along the contact line, and the problems of low measurement efficiency of the current manual handheld laser measuring instrument and the precision caused by the measurement of the high-altitude personnel with the tape and the level are avoided.

[0034] In this embodiment, one side of the outer ruler 41 is provided with a plurality of clamping holes 411, the plurality of clamping holes 411 are arranged along the length direction of the outer ruler 41, one end of the middle ruler 42 located in the outer ruler 41 is provided with a V-shaped spring sheet 44, the V-shaped spring sheet 44 is provided with a plurality of elastic balls 441, and the plurality of elastic balls 441 are clamped with the clamping holes 411. The telescopic ruler 4 can adapt to the requirements of different overhead line parameters of high-speed rail and general rail without changing the height of the ladder, the flexibility and adaptability of the measurement are maintained, the accurate measurement can be provided during the adjustment of the overhead line, and the dislocation or error that may occur during the measurement is effectively avoided.

[0035] In this embodiment, one end of the middle ruler 42 located in the outer ruler 41 is in interference fit with the sleeving opening of the outer ruler 41, and one end of the inner ruler 43 located in the middle ruler 42 is in interference fit with the sleeving opening of the middle ruler 42. The sleeving of the telescopic ruler 4 between different rulers is more stable, and the middle ruler 42 is prevented from being pulled out of the outer ruler 41 and the inner ruler 43 is prevented from being pulled out of the middle ruler 42.

[0036] In this embodiment, the guide rail 2 is provided with a hook 7. The hook 7 facilitates the hanging and storage of the device, so that the device can be conveniently hung and stored when not in use, the device is prevented from occupying too much space or causing disorder in the working environment, the convenience of the equipment is improved, and the comfort and neatness during work are improved.

[0037] In this embodiment, the sliding block 3 is connected with a clamping block 31, one side of the telescopic ruler 4 is provided with a clamping groove 45, and the clamping block 31 is clamped in the clamping groove 45. Through the cooperation of the clamping groove 45 and the clamping block 31, the telescopic ruler 4 can be stably fixed on the sliding block, the problem of deflection of the telescopic ruler during the movement along the contact line is avoided, and the accuracy of the measurement data is ensured.

[0038] In this embodiment, the through hole 46 is arranged in the card slot 45 and penetrates the telescopic ruler 4. The axis direction of the through hole 46 is perpendicular to the extension directions of the guide rail 2 and the telescopic ruler 4. The clamping block 31 is connected with the screw rod 32. One end of the screw rod 32 penetrates the through hole 46 and is threadedly connected with the nut 33. The nut 33 can adjust the position of the telescopic ruler 4 to realize the switching between the use and storage states of the device and stably fix the device, so that the displacement or loosening of the device in the measurement process is avoided, and the stability and precision of the measurement are improved.

[0039] In this embodiment, the nut 33 is a knuckle nut. The knuckle nut is adopted for the nut 33, so that the adjustment and locking are facilitated, and the operation process is further simplified.

[0040] In this embodiment, the screw rod 32 is provided with the anti-falling piece 34 at the end. The diameter of the anti-falling piece 34 is greater than the inner diameter of the nut 33. In the case that the nut 33 is loosened or not completely tightened, the anti-falling piece 34 can prevent the nut 33 from falling off the screw rod 32. This not only improves the safety of the device, prevents the loosening of the device or the inaccuracy of the measurement caused by the falling of the nut, but also reduces the safety hidden danger caused by the loss or loosening of the parts in the operation process.

Claims

1. A contact network wire height difference adjustment auxiliary measuring device, comprising a center scale (1), characterized in that, The middle scale (1) is connected with a guide rail (2), the guide rail (2) extends along the length direction of the middle scale (1), the guide rail (2) is clamped with a sliding block (3) which can slide along the guide rail (2), the sliding block (3) is connected with a telescopic scale (4) which can be perpendicular to the guide rail (2), the telescopic scale (4) is hinged with a pulley (5) at the extending end, the axis direction of the pulley (5) is perpendicular to the extension direction of the telescopic scale (4), the telescopic scale (4) is provided with a spring (6) inside, the spring (6) is stretched to make the telescopic scale (4) lengthened when the force of the pulley (5) is reduced, and the spring (6) is compressed to make the telescopic scale (4) shortened when the force of the pulley (5) is increased.

2. The auxiliary measuring device for contact net wire height difference adjustment according to claim 1, characterized in that, The telescopic scale (4) comprises an outer scale (41), a middle scale (42) and an inner scale (43), the outer scale (41) is sleeved with the middle scale (42), the middle scale (42) is sleeved with the inner scale (43), one end of the spring (6) is connected with the middle scale (42), and the other end of the spring is connected with one end of the inner scale (43) located in the middle scale (42).

3. The auxiliary measuring device for contact net wire height difference adjustment according to claim 2, characterized in that, One side of the outer scale (41) is provided with a plurality of clamping holes (411), a plurality of the clamping holes (411) are arranged along the length direction of the outer scale (41), one end of the middle scale (42) located in the outer scale (41) is provided with a V-shaped spring sheet (44), the V-shaped spring sheet (44) is provided with a spring ball (441), and the spring ball (441) is clamped with each clamping hole (411).

4. The auxiliary measuring device for contact net wire height difference adjustment according to claim 3, characterized in that, One end of the middle scale (42) located in the outer scale (41) is in interference fit with the sleeving opening of the outer scale (41), and one end of the inner scale (43) located in the middle scale (42) is in interference fit with the sleeving opening of the middle scale (42).

5. The auxiliary measuring device for height difference adjustment of a catenary conductor according to claim 1, characterized in that, The guide rail (2) is provided with a hook (7).

6. The auxiliary measuring device for contact net wire height difference adjustment according to any one of claims 1-5, characterized in that, The sliding block (3) is connected with a clamping block (31), one side of the telescopic scale (4) is provided with a clamping groove (45), and the clamping block (31) is clamped in the clamping groove (45).

7. The auxiliary measuring device for contact net wire height difference adjustment according to claim 6, characterized in that, The clamping groove (45) is provided with a through hole (46) penetrating through the telescopic scale (4), the axis direction of the through hole (46) is perpendicular to the extension directions of the guide rail (2) and the telescopic scale (4) at the same time, the clamping block (31) is connected with a screw rod (32), one end of the screw rod (32) is threadedly connected with a nut (33) penetrating through the through hole (46).

8. The auxiliary measuring device for contact net wire height difference adjustment according to claim 7, characterized in that, The nut (33) is a goat horn nut.

9. The auxiliary measuring device for contact net wire height difference adjustment according to claim 7, characterized in that, The screw rod (32) is provided with an anti-falling piece (34) at the end, and the diameter of the anti-falling piece (34) is greater than the inner diameter of the nut (33).

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